Some standard content:
ICS 47.080
National Standard of the People's Republic of China
GB/T 17844—1999
idt ISO 8848:1990
Remote control systems
Small craft-Remote steering systemsIssued on August 31, 1999
Implemented on June 1, 2000
Issued by the State Administration of Quality and Technical Supervision
W.GB/T17844 : 1999
This standard is equivalent to ISO 8848:1990 Small craft-Remote steering systems 8. For remote control systems applicable to simple outboard engines with a power of 15~40kW, see GB/17845—1999 Small power 15~-40W single-unit outboard control systems for special provisions. This standard was proposed by China Shipbuilding Industry Corporation: This standard was submitted by the 78th Institute of the 7th Research Institute of China Shipbuilding Industry Corporation! This standard was drafted by the 601st Institute of China Shipbuilding Industry Corporation and the 78th Institute of the 7th Research Institute. The original authors of this standard are Luo Chunyan, Zhang Jisheng, Lin Dequn and Li Zhensheng. W.bzsosocomGB/T17844—1999
ISO Foreword
The International Organization for Standardization (ISO) is a global federation of national standards bodies (ISO member groups). The work of preparing international standards is generally carried out by ISO technical committees. Each member group has the right to join a committee interested in a topic covered by a technical committee. International organizations, governmental and non-governmental, in association with ISO also participate in this work. ISO cooperates with the International Electrotechnical Commission (IEC) in the work of electrotechnical standardization. Draft international standards prepared by technical committees are first distributed to member bodies for comments. At least 75% of member bodies must vote in favor before they can be published as international standards.
IS0 8848 was prepared by ISO/TC 188 Technical Committee. Note 1: This international standard specifies the requirements and test methods for remote control energy systems. For power, 15~10 kW simple, single-piece external silicon generator suitable for digging and excavating energy systems. For special provisions, see ISO 9775. Small boat power 15~4GhW drum external single-unit overflow control steering system 3WW.bzsoso.cOm Various American standards industry data free download 1 Scope
National Standard of the People's Republic of China
Small boat remote control steering system
Small erafl- Remle steering syslenmsGB/T178441999
idt 1S0 8848: 1990
This standard specifies the requirements and test methods for remote thrust and flexible shaft steering systems and their main components. This standard applies to small boats with a power of more than 15 kW and single and twin thrust engines, as well as all small boats with internal engines, internal engines and external thrusters and water jet propulsion.
2 Definitions
This standard adopts the following definitions.
7.1 Steering system
All components necessary for the remote transmission of human power, external power, internal engines or water jet propulsion. 2.2 Onboard energy system: A transducer system in which the guide tube of the thrust output is fixed. 2.3 Onboard energy system: A steering system in which the guide tube of the thrust rod is fixed to the engine. 2.4 Pull rod lrg link
In the linear energy control system, the connecting rod that transmits the linear force on the push rod to the engine's energy control arm. 2.5 Energy steel helm
The mechanism that inputs the control power into the energy system's flexible shaft or other force transmission device, the energy wheel or other dynamic longitudinal device is not included in the replacement, 2.6 Minimum retained system performance After the test, the energy system has the ability to maintain the system performance, that is, through the normal operation of the energy wheel, and the torque of no more than 127V·n is generated on the handle, so that the control system has the ability to obtain a normal operating range of at least 90% on each side in the middle position. This standard does not specify the performance of the energy control system of small boats in navigation, but provides fixed values for design and testing. 3-General requirements
3.1 The inertial energy system installed on the model should be variable. The energy control system of the outboard engine boat should be able to provide a standard push rod output end. 3.2 The control system shall be installed in accordance with this standard. 3.3 The small double-sided support shall be marked and it shall be indicated whether it is suitable for airborne control system or suspended control system, or both. The standard is applicable to boat control system, and it shall also be indicated whether it is suitable for parallel installation or board installation, or both (see Figure 2). Approved by the State Administration of Quality and Technical Supervision on August 31, 1999 and implemented on June 1, 2000. 15: Maximum) GB/T 17844—1999
(with zero center position)
Equal to $15, 75 23. 13
Time 10.7 Small
Continuous
88 Number Too
Data generator fuel sand 7/141:NF:B
Recognition pattern (general offer nest snake system this;
Note; Minimum stroke: too nun on both sides of the stroke center position, Maximum stroke: 115 mm on both sides of the stroke center position: Figure 1: Output push rod
Note; Fang on the engine stand side push head
Move the rotating push head. The engine well should ensure that the engine shaft
w has a 880m stroke from the rotation axis
/2 -4 UNF 2 Screw:
System text bearing pipe 1. Length 1mm
With connection
Rotation axis rate and height of the board: 32-
(Engine frame installation and board girl)
350llrnMiddle position of stroke
Rotation oil engine shaft
When the engine mounting surface
One engine line
Rotate 1°)
380mmThe stroke can be placed
Rotation axis to engine axis
a) Engine well installation
Note: Minimum stroke: 1001mm for both sides of the middle position of the stroke Maximum stroke: 115m for both sides of the middle position of the stroke. Figure 2
Boat Steering System
2.7 Most Human
Rotation Line Position 1-Engine Installation I Pre-installed on the top, maximum 12 (Engine mounting surface of the engine stand and the engine mounting surface of the engine stand
Engine axis
15 total small)
L) Polar Installation
W.GH/T17844—1999
3.4 All threaded fasteners that affect the safe operation of the steering system shall be tightened with locking devices 3.5 Other threaded fasteners that affect the safe operation of the steering system; threaded fasteners that are intended to be installed or adjusted when the steering system is installed on the boat, and threaded fasteners that are expected to be disturbed during the installation and adjustment process, shall be properly tightened according to the locking devices recommended in the manual and comply with the provisions of 3.5.1~-3.5.33. 1. It is forbidden to use loose locking washers, thread deformation or bonding fasteners. 3.5.2 It is forbidden to use general thread locking nuts unless they allow adjustment and will not cause complete separation of parts or other complete loss of operation when loosened.
Note 3: For components that are not intended to be removed after installation, the tightening method selected should be considered by the system manufacturer. 3.5.3 The design of the locking device should make it possible for non-professionals to confirm its existence through inspection or touch after installation. 3.6 It is forbidden to use connectors that rely on spring storage to maintain connection, including quick-disconnect connectors. 4 Requirements for outboard and internal propulsion devices 4.1 The rudder stop device of the external support plate shall allow an angular displacement of at least 30° to both sides. 4.2 The general outboard engine shall comply with the dimensional requirements shown in Figures 3 and 4. Engine
292±13
162(maximum)
16: minimum
Any one
CVF 2A
Note that the ends of the pipe can be equal in length or the left steering device can be replaced. The steering pipe installed on the engine is damaged. The shaft is too dry and the shaft is mixed with the matching surface. 4 The steering axis of the engine is 3
W.bzsoso:comGB/T 17844--1999
4.3 The accessories necessary to connect the external computer to the energy output rod (as shown in the figure) should be connected to the external computer - supply, 4.4 The external computer should be designed to be able to withstand any combined action of engine or engine tilt and rotation without any damage to the engine, engine accessories and boat control system (installed as shown in Figure 2), airborne control system (if the engine is designed for use with two control systems), and the corresponding card information and installation instructions should be provided. The type of control system to be used should be clearly stated. 4.5 The design of the external control unit should be geometrically appropriate to ensure that within the entire range of use, the steering output of the lever will not exceed the value specified in 7.2.1 when a static load of 33:30N is applied to the control arm connection point in the vertical plane of its operation. 4.6 The control arm connection point of the external control unit shall have a 3/824 standard threaded screw or a hole with a diameter of 6.6:~9.9mm at the connection point.
4.7 The internal propulsion device of the internal control unit shall be designed with a suitable geometric shape to ensure that a total torque of 8:N·0: is applied to the external propulsion axis. It will not lead to the reduction of the load of the energy-saving components by the current value of 17.2.1. 5 Energy-saving system requirements
5.1 The engine control system shall comply with the dimensional requirements of Figures 1, 3 and 4. 5.2 The onboard energy-saving system of the external engine installation shall comply with the dimensional requirements shown in Figures 1 and 2: If the force-directed joint of two rotating shafts is used to replace the joint shown in Figure 2, the auxiliary axis perpendicular to the mouse board surface shall be located 1.3-13mm from the horizontal plane of the engine surface. The second axis should be 100~115mml away from the inner surface of the ship board. And it should not exceed 2% from the first axis facing the engine. 5mt5.3 The steering auxiliary is gradually formed in the engine batch, and the length of the energy-saving system is marked on the table. This length is the distance from the center of the steering wheel to the center of the steering output hole when the steering wheel is in the intermediate position.
5.4 The installation instructions of the steering wheel installation shall include recommendations on the maximum diameter and deepest concavity of the steering wheel that can be matched with the steering device (see Figure 5). In addition, the maximum diameter and deepest concavity of the steering wheel shall be permanently marked on the steering wheel assembly to facilitate reference when installing or removing the steering wheel.
Although the standard diameter shown is the diameter of the actual pressure point, the steering wheel is not included in the steering wheel installation. WGB/T17844-T999
5.5 The steering system and components shall comply with the test requirements specified in Section 5.6 Plastics and rubber components that may be exposed to sunlight should be made of materials that are resistant to ultraviolet rays. 5.7 Plastics and rubber components that may be used in the cabin should be made of materials that are resistant to salt spray, combustion, heat and aging. 6 Installation
6.1 Except for the devices that are specially specified for internal engines and external energy devices, the airborne energy system or the boat-borne potential energy system shall be used.
6-2 If the airborne energy system + steering shaft or the power transmission mechanism of the type A is integrated on an external engine boat, the selection shall be as follows: After installation, when in the middle of the flight, the distance between the output push rod or the connection of the equivalent component (as shown in Figure 6) and the engine P centerline shall be at least 270n:m: Engine center war
Travel light center position
Contact station
Figure 6 Airborne power control system
63 If the power control system is installed on the external inference cancer, the power control flexible shaft or other types of transmission specifications should be selected as follows: After installation, during the stroke, the auxiliary push rod or equivalent component connection should be at least at the engine center line. The flexible shaft should be at the swivel of the small start [soft ejector stator, and its agent is relative to the position of the engine center line on the type plate, as shown in Figure 2, 64 The installation of the internal and external propulsion device or water jet propulsion device is achieved under the joint cooperation of the rotation and tilt of the propulsion device .In the same way, there should be no damage between the fiber and its partitions and any parts of the energy-saving system. 6.5 The bending radius of the flexible shaft should be as large as possible. The minimum diameter of the energy-saving system should be as large as possible. 6.6 The selected energy-saving wheel and wheel should match. The conventional ratio is shown in Figure 7. 6.7 The energy-saving system and components after installation should meet the test requirements of 7.1. 6.B When the energy-saving flexible shaft passes through the side screen of the hanging machine light frame below the static floating water surface, the hole through which the flexible shaft passes should be appropriately relaxed to meet the test requirements. a) The distance to the convex side should be within the test requirements. 7.: Test after installation GB/T 178441999
Maximum.C7map
b) Number of wheels
0.8 (large)
e) Matching of steering wheel shaft and steering wheel
Figure 7 Steering wheel shaft and hub
The following test is used to determine the acceptability of the design strength of the steering system at the joint with the outboard engine after installation. 7.1.1 The steering system should be able to withstand a static load of 3 300 N applied to the connecting hole of the steering output push rod along the axis of the steering output push rod in both pushing and pulling directions without losing its steering ability after the test. The change in its size should meet the requirements of Ying 2: The permanent deformation measured along the axis of the steering output push rod should not exceed 6.35 mm. 7.1.2 The steering system should withstand a static load of 450 N applied to the following appropriate parts in both pushing and pulling directions. V Single tangential load: - the lowest point on the rim of the steering wheel
the center point of any handle around the outside of the steering wheel; - the maximum moment application point of other steering devices. At any position where the minimum holding system performance is maintained, the rim, the handle or the handle is not more than 1m1, and a single tangential load of 670V is applied in each direction respectively. The boat structure should not show any cracks and changes that cannot reach the specified load under the above load.
CB/T 17844—1999
At the end of the load test, the power system should be tested for the minimum holding system performance in its state. Correction of the power system is not allowed before this test. It is not acceptable to apply the load specified in this article so that the power system cannot maintain the minimum holding system performance, or the components necessary for power control, including the steering device, the deck or any part of the engine frame, are separated from the boat. 7.2 Component Tests
The following tests shall be used to determine the minimum acceptable design criteria for energy system components. 7.2.1 Steering shaft and output fittings tests
7.2.1.1 Each energy control shaft and output assembly (including the load-bearing steering system component 1 and each integral accessory) shall be able to withstand a tensile and compressive axial load of 9000N applied to the energy control output push rod connection hole without component separation over the entire transmission range. 7.2.1.2 A single static load of 905N shall be applied to the center line of the output push rod hole. The unsupported length of the push rod shall be at least 90 mm without causing a permanent deformation of more than 1.25 mm at the push rod hole. 7.2.1.3 The virtual load of the output push rod of the steering shaft shall be 1670N as shown in Figure 8. The alternating load shall not cause the components to separate. The load shall be able to act repeatedly through the connecting hole of the push rod for 50 (000 times. JG7mn
Complete retraction-
Complete micro:
Figure 8 Output push rod fatigue test
7.2.2 Steering device test
When the steering wheel with the largest diameter and deepest concavity calibrated by the cabin wheel is installed, the steering device shall not lose its operating function after the following test. The energy transfer device of the dual-axis energy control system shall meet the requirements for the installation of each flexible shaft separately. 7.2.2.1 Inter-axis load test
A push-pull load of S70 N shall be applied at any single position: its distribution shall not exceed 10 mm of the following items Light use: wheel rim;
handles around the outside of the steering wheel;
other steering devices subject to the maximum force at any place, the load direction should be parallel to the cabin shaft axis, load 10 times, the duration of 55 seconds. 7.2.2.2 Tangential shear load test
In the following characteristics, a yoke is placed outside in a direction such as 150 degrees to load any point on the rim of the steering wheel +
any point on the outside of the steering wheel at the center of the handle;; any other steering device with the maximum force on the point, at any single position, the load should be in the same plane and tangential to the steering wheel rim or other rotating parts of the steering device, load 10 degrees at any point in the entire steering range, each time for 5 seconds. 7.2.3 Steering standard test bzxz.net
Note 3: All metal wheels or technical structure wheels, as well as wheels without material components, can be exempted from the hot test 17.2.3. 1) and ultraviolet irradiation test (7.2.3.2). Before the mechanical test of the wheel in 7.2 and 3.1, a 3-ohm heat conditioning test and a heat conditioning test shall be carried out as follows: keep warm at 2.℃ +2℃ for 3 h; keep warm at 31℃+2℃ for 3 h; keep warm at 21℃+2℃ for 3 h; keep warm at 10℃+2℃ for 3 h; keep warm at 10℃+2℃ for 3 h;7.2.3.2 After the heat conditioning test, the wheel shall be irradiated with ultraviolet light at a temperature of 1.60°C for 110 h using a blue RS E light lamp or an equivalent ultraviolet lamp at a distance of 480°C. 7.2.3.3 After the ultraviolet irradiation test, the wheel shall be kept at a temperature of 20-24°C for at least 3 h and then the mechanical tests of 7.2.3.3.1 to 7.2.3.3.3 shall be carried out. 7.2.3.3.1 Axial load test A load of 60°C shall be applied to any one position and its distribution shall not exceed 100% of the following values: 7.2.3.3.2 Shear load test
Apply a 450V shear load in each direction at the following locations: Any location on the yoke rim:
Any location on the yoke rim at the center of the handle. At any single location, the load should be in the same plane and uniform with the rotating part of the yoke or other yoke device. Load 10 times, each time for 5 minutes. No cracks on the surface. 7-2.3.3-3 Impact test
Use the device shown in Figure 9 and the following steps: Make the impact test device (see Figure 9) completely filled with a diameter of 250 μm, and produce a total of 7E5 N, l:, the leather bag in the hall, the leather bag is selected on the steel wire swinging in the middle. The distance from the support point to the center of mass is 2250~23(10mm1, the impact space of the leather bag should be an end with a diameter of 23011: as shown in the figure, the perturbation grid is lifted to a sufficient degree to produce the required impact force on the energy wheel installed in the front part. The sugar should be rigidly fixed to prevent positive movement. As long as it can be verified that they are equivalent, different devices can also be used, for example: falling body
Figure 9 Energy wheel impact test device
In Figure 9, the minimum is 2250 N:m and the maximum is 230c mm; F--785 N:
-Impact value, N·:, see Table 1;
h1oi(um). See Table 1.
W Impact test
(N 7. 2. 3. 3. 3)
First
GB/T17844—1999
Third impact test
h is 204m. At any position of the wheel rim, the wheel can withstand a single impact of 60N·m, without causing the following conditions: the wheel is installed in the energy system. The deformation that causes the connection system to lose performance: - the cracks that already existed before the test to expand: the appearance of new cracks
Second impact test
A is 345mm. At any position of the wheel rim, the wheel can withstand a single impact of 270N·m, without causing the wheel to be completely separated from the wheel.
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