This standard specifies the requirements and test methods for remote push-pull flexible shaft steering systems and their main components. This standard applies to small boats with a power of 15 to 40 kW outboard engine. GB/T 17845-1999 Remote control steering system for small boats with a power of 15 kW to 40 kW outboard engine GB/T17845-1999 Standard download decompression password: www.bzxz.net

ICS 47.080
National Standard of the People's Republic of China
CB/T 178451999
idt ISO 9775 : 1990
Small craft Remote steering systems forsingle outboard motors of 15 to 40 kw 1999-08-31 Issued
2000-06-01 Implementation
State Administration of Quality and Technical Supervision Issued
W.GB/T17845—1999
This standard is equivalent to GB/T17845-1999 "Small boat power 15~~40kW single-machine avoidance steering system". This standard stipulates more specific requirements than GB/T17844-1999 "Small boat remote control steering system". This standard is proposed by China State Shipbuilding Corporation. This standard was issued by the 708th Institute of the 7th Research Institute of China State Shipbuilding Corporation. The drafting units of this standard are the 6Q1st Institute and the 708th Institute of the 7th Research Institute of China State Shipbuilding Corporation. The main drafters of this standard are Luo Yangyan, Zhang Kasheng, Lin Dehui and Qian Baosheng. WGB/T17845—1999
ISO Foreword
ISO (International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The formulation of international standards is generally carried out by ISO technical committees. Each member body has an interest in the subject of a technical committee and has the right to participate in this committee. Governmental and non-governmental international organizations associated with ISO also participate in this work. ISO works closely with the International Electrotechnical Commission (IEC) in the standardization of electrotechnical technology. The draft international standards prepared by each technical committee are first distributed to each member body for comments. At least 75% of the member bodies must vote in favor before they can be published as international standards.
ISO9775 was prepared by ISO/IEC 188 Technical Committee for Small Boats. This international standard specifies the requirements and test methods for control and detection systems. This standard is a more specialized requirement than ISO 1808&48&35 for small boat control and detection systems.
W.1 Scope
National Standard of the People's Republic of China
Small crafi-Remole steering systems for single nu1buard motors of T5 to 40 kW pnwerGB/T 178451999
idtISo9775:1990
This standard specifies the requirements and test methods for the long-distance push-pull flexible shaft energy control system and its main components. This standard is applicable to small external single motors with a power of 15 to 40 kW. 2 Definitions
This standard adopts the following definitions.
2. Energy control systemxlcering system
The assembly of all parts necessary to transmit human power to external motors. 2.2 Hoat-mounted steering system Hoat-mounted steering system The guide tube of the output push rod is fixed to the power system of the boat. 2.3 Mo:or-mounted steering system The guide tube of the output push rod is fixed to the power system on the engine. 2.4 Drag link In the airborne power system, the reverse lever that transmits the force on the output push rod to the power control of the engine 2.5 Helr
The mechanism that transmits the power auxiliary to the power system flexible shaft or other power transmission device, and the power wheel and its independent manual control device are not included. 2.6 Minimum holding system performance The ability of the steering system after the test is that the steering system can obtain at least 90% of the normal normal conditions in the middle position under normal operation. This standard does not specify the performance of the steering system during operation, but is intended to provide a certain test limit for the design and test procedures. 3 General requirements
3.1 The steering system installed on the vehicle should be supplied as a complete set. The steering system of the external function should be provided with a set of connectors at the output end of the push rod (as shown in Figure 1).
3.2 The power system should be installed in accordance with this standard. 3.3 It should be indicated whether the small part is suitable for machine-mounted power system or body-mounted power system, or both. It should also be indicated whether it is suitable for rack installation or display panel installation. Or it should be specified in the letter (see Figure 2). Approved by the State Administration of Quality and Technical Supervision on August 31, 1999, and implemented on June 1, 2000
W15 and large)
GB/T 17845
(middle position)
+±5. 75±6. 23
300 (minimum)
Plane 30.7 (minimum)
Connection
15.88 (large)
Heater screw 7/R-14LINF2B
Gu pattern (overload control system selection)
Note: Minimum stroke: 100 on both sides of the stroke position mm, maximum stroke: 115mm on both sides of the middle position of the stroke Figure 1 Output push rod
Method If there is no adapter installed on the engine derrick training joint
, the engine frame will ensure that the engine is straight from the rotating shaft to the engine shaft,
wire tool middle position of stroke
F/6UNF-23 silver grain:
Steel support minimum length 1Gml
45.780.13
Rotation axis rate projection plate stop distance 132 1.
(Engine lift installation and plate installation) 12.7 (minimum)
Rotate axis position 1 Engine mounting surface top
380mm stroke middle position
Rotate to engine axis
Through the engine mounting surface
Engine phase
Rotate 15 (minimum)
38Gtam line difference middle position
Rotate axis to engine axis
a) Engine derrick installation
Note: minimum stroke; the stroke middle position is 100 on both sides mm, maximum stroke: 115 on each side of the middle of the stroke. Figure 2: On the top of the steering system, the maximum is 12 <Engine frame installation and steering board installation>
Engine installation on the standard frame and
Engine shaft
15 minimum)
h) Steering board installation
W. GB/T178451999
3.4 All threaded fasteners that affect the safe operation of the steering system should be tightened. 3.5 The threaded fasteners that affect the safe operation of the steering system, the threaded fasteners that are intended to be installed or adjusted when installing the steering system, and the screw fasteners that are expected to be disturbed during the installation and adjustment process should be properly tightened according to the locking method recommended in the manual and meet the requirements of 3.5.1 to 3.5.3. 3.5.1 It is forbidden to use loose locking washers, thread deformation and precision fasteners. 3.5.2 It is forbidden to use ordinary thread locking screws unless they allow adjustment and will not cause complete separation of parts or other complete loss of steering ability when loosened.
2: For components that are not intended to be removed after installation, the selected locking plate method has taken into account the manufacturer's safety. 3.5.3 The design of the locking device should make it possible for non-professionals to confirm its existence by visual inspection or touch after installation. : 3.6 It is forbidden to use connectors that rely on springs to maintain reverse connection, including quick-release connectors: 4 Requirements for external engines
4.1 The energy-locking device of an external engine should allow at least 30 degrees of angular displacement to the left and right sides. 4.2 The external machine shall meet the dimensional requirements shown in Figures 3 and 4: Engine cutting
Low load class I
I UNF-24
Net sliding thread
Standard: Both ends of the machine shall have equal length threads or the left and right dry devices can be replaced, Figure "Steering pipe installed on the engine
Steering energy writing
Material axis
Mixing and distribution surface
4" Steering inclined axis of the engine L
W.GB/T 17845-1999
4.3 Connect the external machine to the energy output push rod (as shown in Figure I): The necessary accessories should be supplied with the external machine, 4.4 The outboard exhaust system shall be designed so that any combined pressure of the engine tilt and rotation will not cause any damage to the engine, engine equipment and load-carrying energy system (installed as shown in Figure 2), or the engine load-carrying energy system (if the engine is designed to use this type of energy system). The relevant written information and installation instructions shall be provided to clearly indicate the type of load-carrying energy system to be used. 4.5 The geometric shape of the outboard engine design shall ensure that within the minimum load-carrying energy system, when a static load of 2200N is applied to the steering arm connection point vertically in the plane of its operation, the load on the steering output arch will not exceed the value specified in 7.2.1. 4.6 The transducer arm of the external engine shall have a 3/8-24 uniform standard fine pitch thread or a flat hole with a diameter of 9.65~9.9mm at the connection point.
5 Energy system requirements
5.1 The airborne energy system shall comply with the dimensional requirements shown in Figures 1, 3 and 4. 5.2 The boat-borne energy system of the external engine shall comply with the dimensional requirements shown in Figures 1 and 2. If a square joint with two rotating shafts is used instead of the joint shown in Figure 2, the axis perpendicular to the plate surface shall be located 0~13mm above the horizontal plane of the engine frame. The second axis should be 100~115mm from the inner surface of the gear and no more than 28.5mm from the first axis facing the engine. 5.3 The steering shaft should be marked at the engine end with the length of the steering system, which is the distance from the center of the steering wheel shaft to the center of the steering output push rod hole when the steering wheel is in the middle of the stroke. The steering shaft should also be marked by the manufacturer with a maximum allowable power of 40kW. 5.4 The installation instructions of the steering device should include the maximum diameter and maximum depth that can be matched with the steering device (see Figure 5). In addition, the maximum diameter and maximum depth of the steering wheel should be permanently marked on the steering device components for easy reference when installing the steering device with the steering wheel removed. The maximum allowable power should be permanently marked on the steering handle. Note: The actual diameter minus 30mm is taken for the total diameter of the steering wheel. Figure 5 Steering wheel 5.5 Beam energy systems and components shall comply with the test requirements specified in Chapter 7. 56 Plastics and synthetic rubbers that may be exposed to the sun shall be made of materials resistant to ultraviolet aging. 5.7 Plastics and synthetic rubbers that may be used in the engine room shall be resistant to salt spray, oil, grease and heat aging. W6 Installation
GR/T 17B45
6- 1 Except for the installation of internal engines or external exhaust engines with special provisions in the general/application level, the onboard power control system or onboard power control system should be used.
6.2 If the onboard power control system is installed on an external suspension boat, the operating flexible shaft or other type of power transmission mechanism should be selected as follows: After installation, when in the lower position of the stroke, the connection between the output push rod or equivalent component is as shown in the figure, and the distance from the center line is at least 27. Engine center installation
Mid-stroke operation
Maintenance
Camera 6 Engine control system
6.35 When installing a control system on an external engine, the control system or other type of power transmission equipment must be selected: after installation, when in the mid-stroke position, the connection between the output push rod and the guide component should at least reach the center line of the engine. The flexible rail should be tied to the flexible shaft on the boat. The flexible rail should be fixed at the swivel of the flexible shaft, and the position of the engine center and the position on the support plate should be relative to each other, as shown in Figure 2. 6.4 The bending of the relatively small distribution should be as small as possible, and the maximum bending resistance should not be less than the minimum half recommended by the manufacturer.
6.5 The selected energy wheel and axle should match each other and the conventional matching should be in accordance with the test requirements of 7.6.6. After installation, the energy system and parts should meet the test requirements of? .1. 6.7 When the probe flexible shaft passes through the suspension below the static floating water level and is adjusted, the hole through which the flexible shaft passes is properly sealed. W.7 Test requirements
GH/T178451999
Note: The minimum value of the wheel type is: 1.7% mm. The maximum value is E.mmgl [
+17.23..1
a) Clearance between the housing
7. 1 Test after installation
b) Wheel damage
$16.31-**
79.5 Product, special value
C) Matching of the transducer wheel shaft and the energy wheel
Figure? Steering wheel shaft and wheel hub
The following test is used to determine the acceptability of the design strength of the joint between the steering system and the external bar after the steering system is installed on the small explosion. 7.1.1 The system should be able to withstand a static load of 2200N applied to the connecting hole of the steering output push rod along the axis of the steering output push rod in both the pushing and pulling directions, and will not lose the steering capacity after the test. The change in its size should comply with the requirements of Figure 2, and the permanent deformation measured along the axis of the output push rod should not exceed 6.35 mm1: 7.1.2 The steering system should withstand a single tangential load of 450N applied to the following appropriate positions in both the pushing and pulling directions: any point on the rim of the steering wheel; any point on the outside of the steering wheel around the center of the handle; the point where the maximum moment of the steering device is applied. At any position where the minimum system performance is maintained, a single axial load of 670N is applied in each direction at a place not more than 100mm on the rim, the steering wheel handle or the handle. Under the above load, the mounting surface or general structure should not have any cracks and deformation that cannot reach the specified load.
GB/T 178451999
At the end of the load test, the energy steering system should be tested to maintain the minimum system performance in its state. No correction of the steering system is allowed before the test. If the steering system cannot maintain the minimum system performance or the components necessary for steering control, including the energy transfer device, the steering plate or any part of the engine bracket, are separated from the boat due to the application of the load specified in this article, it shall be deemed as a failure of the test. 7.2 Part Tests
The following tests are used to determine the minimum acceptable design stress of the components of the steering system. 7.2.1 Test of steering flexible rail and output assembly
7.2.1.1 Each steering flexible shaft and output assembly (including the onboard energy detection system element) and each integral accessory shall be able to withstand 600N tensile and compressive axial loads applied to the steering output push rod connection hole without separation of components within the entire transmission range. 7.2.1.2 A single cantilever load of 600N shall be applied to the center line of the steering output push rod hole. The unsupported length of the push rod shall be at least 190mm. No permanent deflection exceeding 1.25mm shall be produced at the push rod hole. 7.2-1 .3 The output push rod of the push-pull steering shaft shall be able to withstand the alternating load of 1100N as shown in Figure 8 without causing separation of components. The carrier shall be able to act repeatedly 5000 times through the connection of the push rod. 0tmm
Fully retracted 1
Figure 8 Output push rod fatigue test
7.2.2 Steering wheel test
When equipped with a steering wheel with the maximum diameter and deepest concave calibrated by the wheel, the steering wheel shall not lose its operating function after the following test. The steering device of the dual-flexible steering system shall comply with the requirements of the safety rating of each flexible shaft 7.2.2. 1 Inter-axial load test
A 70 push and pull load shall be applied to any single part, and the load shall not exceed 10mm of the following items: Steering wheel rim:
Handles around the outside of the steering wheel:
...Other steering devices at the point of maximum human moment application!TAt any place, the load action direction shall be parallel to the axis of the steering shaft, and the load shall be applied 10 times, each time for 5 minutes. 7.2.2.2 Inter-row load test
A load of 450N shall be applied in each direction:
Any point on the rim of the steering wheel; || tt||At any point around the outside of the steering wheel, the maximum torque point on any other energy-saving device, at any single position, the load should be in the same plane as the steering wheel rim or other rotating parts of the energy-saving device and tangent to it. Apply 10 times at any point within the entire steering range, each time for 5 seconds. 7.2.3 Energy-saving wheel test
Note 3: All metal energy-saving wheels or wooden energy-saving wheels, as well as serpentine wheels without plastic structures, can be exempted from the false heat conditioning test (7.2.3.1) and ultraviolet irradiation test (7. 7.2.3.1 Before the mechanical test, the ship shall be subjected to three heat conditioning tests. The first heat conditioning test is as follows: keep warm at 21 (±2°C for 3 h, keep warm at -34°C for 3 h; keep warm at 21 (±2°C for 3 h, keep warm at 71°C +2°C for 3 h. GB/T 17845-1999 7.2.3.2 After the heat conditioning test is completed, the ship shall be exposed to ultraviolet light for 110 h at a temperature of 483°C with a RS lamp or an equivalent ultraviolet lamp. 7.2.3.3 After the heat conditioning test and the external irradiation test are completed,The steering wheel should 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 ~ -7.2.3.3,3 are carried out. 7.2.3.3.1 Axial load test
Apply a 67°C push and pull load at any single location, and the distribution shall not exceed the range of 1°C mm: Steering wheel rim:
Handles around the steering wheel.
At any single location, the load action direction shall be parallel to the axis of the steering shaft, and the load shall be applied 10 times. No cracking or permanent deformation exceeding 25.4 is observed for 5 consecutive times. 7.2.3.3.2 Tangential load test
Apply a 150 N tangential load in each direction at any location of the steering wheel;
At the center of a handle around the steering wheel. At a single location, the load shall be applied tangentially to and in the same plane as the rotating part of the energy wheel or other operating device for 10 times, each time for 5 seconds. 7.2.3.3.3 Extrusion load test The device shown in Figure 9 and the following steps shall be used; The guerilla test device (Figure 9) shall be a fully filled 250 mm diameter 250 mm1 250 mm diameter ...
Figure 9 Steering wheel impact test rig
Figure 5 In: 4 minimum is 2 250 mm maximum is 2 300 rm; F-785 N+- first impact value, N·m, see Table 1t
1 (HO:5
tmm, see Table 1.
W.(±7.2.3.3.3)
First impact test
CB/T178451999
h is 204 mm. At any position of the wheel rim, the wheel should be able to withstand 160 N* n! Single impact without causing the following situations: When the camel wheel is installed in the operating system, deformation that causes loss of system performance; "- causing any cracks that have been treated before this test to expand! New cracks continue to appear. bzxz.net
Second impact test
The wheel should be able to withstand a single impact load of 270N·m at the lowest position of the wheel without causing complete separation of the wheel rim and the wheel crack:
W.
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