JB/T 9722-2001 This standard is equivalent to ISO 6746-1:1987 "Definition and symbols of dimensions of main engine of earth-moving machinery Part 1: Main engine". This standard is a revision of JB/T 9722-1999 "Definition and symbols of dimensions of main engine of construction machinery". Two types of track shoe schematics were added during the revision. This standard specifies the definitions of terms and symbols related to the dimensions of the main engine of earth-moving machinery. This standard applies to the basic types of earth-moving machinery defined in GB/T 8498 "Terms of basic types of earth-moving machinery". This standard was first issued in April 1988 as ZB J85 003-87, and the standard number was adjusted to JB/T 9722-1999 in April 1999. This is the first revision. JB/T 9722-2001 Definition and symbols of dimensions of main engine of earth-moving machinery JB/T9722-2001 Standard download decompression password: www.bzxz.net

[C553.100
Machinery Industry Standard of the People's Republic of China
JBT9722—2001
eqvISo 6746-1:1987
Earth-moving machinery
Definition and symbols of base machine dimensions
Earth-moving machinery--Definitionsnf the base machines dimensions and symbols2001-04-03 Issued
China Machinery Industry Federation
2001-10-01 Implementation
JH/T9722—2001
This standard adopts TS06746-1:1987 Definitions and symbols of base machine dimensions: Part 1: Main machine This standard is a revision of B/T9722-1999 "Definitions and symbols of base machine dimensions". Compared with 9722-1999, this standard adds two types of slow-moving machine diagrams in Appendix B: In order to be consistent with international standards and relevant domestic standards, the name of the original standard is included in the definition and symbol of the dimensions of the main engine of earth-moving machinery. This standard is equivalent to B9722-1999 from the date of implementation. Appendix A, Appendix B, Appendix D, Appendix E, and Appendix F of this standard are all appendices of the standard. This standard is proposed and managed by the Technical Committee for Standardization of Earth-moving Machinery in the Electric Machinery Industry. The drafting unit of this standard: Tianchong Engineering Machinery Research Institute. The main contributors of this standard: Shang Haibo,
This standard was first issued in 1988 as ZBJ35003-87, and the standard number was revised to JB/T9722-1999 in 1999. This is the first revision.
ISO Foreword
International Organization for Standardization! (TSO) is a joint organization of the industry composed of national standardization committees (ISO members). The formulation of international standards is usually carried out by ISO technical committees. Each member or country has the right to join the technical committee when it is involved in the standardization process determined by the technical committee. Governmental and non-governmental international organizations related to the work can also participate in the work. The International Electrotechnical Commission (IEC) maintains close cooperation in all aspects of electrotechnical standardization. Draft international standards adopted by the technical committees shall be circulated to all member countries for voting. At least 75% of the member countries need to vote in favor of the draft international standard before it can be published as an international standard. ISO6746-1:1987 is a technical revision of the first edition (ISO6746/1:1982) jointly produced by ISO, TC:[27 Earth-moving machinery Technical Committee, 8C2 Safety requirements Human factors Technical Committee. 1 Standard of the People's Republic of China Machinery Industry Standard Earth-moving machinery Definitions and symbols of main machine dimensions This standard defines the definitions of terms and symbols related to the dimensions of earth-moving machinery. JB/T 9722-2001
6qv TSO 6746-1 : 1987
Replaces JB/T9722-[999
This standard applies to the basic types of upper machinery defined in GB/T8498 (hereinafter referred to as machines). 1 Reference standards
The provisions contained in the following standards constitute the provisions of this standard through reference in this standard. As of the publication of this standard, the versions shown are valid. All standards are subject to revision, and the parties using this standard shall discuss the possibility of using the new versions of the following standards. GB/T 849B.-1999
JG/T80—1999
3 General definitions
Earth-moving machinery Basic types Terminology
Earth-moving machinery, working device Dimensions Definitions Symbols This standard adopts the following definitions
3.1 Three-dimensional coordinate scale system See Appendix A [Standard Appendix]
3.2 Ground reference plane (abbreviated as G RP) The reference ground plane is the plane of the season, and the machine is placed on this half plane for measurement. This plane is 3.2.1 For tire-type machines, it is a solid and non-deformed horizontal plane. 3.2.2 For strand-type accumulators
u) Forcible loaders and pipelayers: The measured belt plate refers to the lower plate surface of the strand belt plate [see Appendix B (Standard Appendix), H,]: b) Loaders and excavators: The plane formed by the tip of the strand (see Appendix B, H,) c) Low-profile: The early surface of the belt plate at half the distance between the fastening surface of the belt link and the waist thorn end (see Appendix B. 3.3 Base machine A machine without the working equipment specified in the manufacturing instructions shall have the necessary support for installing the working devices listed in JG. 4 General information Appendix B to Appendix F (both are standard appendices) give the definitions and symbols related to the dimensions of base machines. Approved by China Machinery Industry Federation on April 3, 2001 and implemented on October 01, 2001. 5 Explanation of symbols JBR 9722-2001 Appendix B to Appendix F Each dimension has a symbol, which consists of 1 letter and 1 number. 5.1 A capital letter is used to represent a dimension: H - height dimension:
- width dimension:
Length dimension:
R - radius dimension:
A - angle dimension.
5.2 Use numbers in frequency order,
A1 Coordinate datum system
JB[9722—2001
Appendix A
(Standard Appendix)
Three-coordinate dimension datum system-
-Definition
This appendix gives the definition of the three-coordinate scale datum system for determining the size of large square machines. This datum system is not suitable for commercial documents. AZ definition
The above definition clarifies the coordinate dimension datum system. A21 Zero plane, vertical plane passing through the longitudinal centerline of the machine. A2.2 × Early: Any-vertical plane perpendicular to the Y plane. A2.37. Plane: A horizontal plane perpendicular to the X plane and the Y plane. A2.4 Coordinate values: The positive value of the plane is: In front of the X plane, the right side of the Y plane and the top of the 7th plane are all positive. Note: Usually the X, Y axes (zero plane) are taken as the center point of the machine (i.e. the driver's seat, the center line of the engine crankshaft, the center line of the tractor light wheel shaft, and the bottom line Z of the machine. If only the engine component is indicated, the fixed position of the engine (i.e. the first cylinder of the engine, the driver's seat in front of the machine) is required to determine the positioning and positive direction of the Y and Z axes (equal planes). 3 If it is necessary to indicate the machine and (or) the second plane, it should be indicated according to the machine's right-hand and left-hand dynamic forces. Figure: A1 three-dimensional standard system of dimensions Maximum total height Maximum height of the vehicle Maximum height Maximum height Height Transportation Shipping Breakaway clearance Graunu Elearanve JB/T9721-2001 Appendix (Appendix to the standard) Terms and symbols for height dimensions In the z coordinate, the height between the datum ground plane and the highest point of the ROPS equipped with the driver's shed In the z coordinate, from the datum ground plane to the highest point of the ROPS equipped with the driver's shed In the z coordinate, from the datum ground plane to the highest point of the ROPS equipped with the driver's shed The distance from the highest point of the belt of the machine with or without RPS is the distance from the reference ground plane (for wheeled machines) or from the bottom (for the belt guide car or the table machine to the city point of the machine (for low-cost shipping, the machine has been partially removed for learning mail
The coordinates of the car are the distance from the reference ground plane to the lowest point of the machine in the middle: "The middle of the system" is defined as the distance from the Y level to any two Y levels. The distance from the center of the belt (limit) is used (use! 25% of the area
thorn height seat
2rousc:
helght
JB/T9722-2001
In the Z coordinate, the plane from the lowest point of the limit thorn tip to the Z plane of the wall belt plate below the plate: For a pre-belt with an angled machine surface, from the thorn end to the 2-level low limit thorn chain 5 screw flat solid within 2.The distance between the flats: for two-minute and unloading scrapers: HH instrument suitable for sewage trucks a) loading machine, hoisting machine b) loading machine, control machine Maximum width maximum width of the whole belt center Bckgajg wheel track return (whacl track) belt board fixed sbue
JB/T9722—2001
Time record ℃
(Standard Appendix)
Technical spectrum and symbol of width dimension
On the Y coordinate, on both sides of the Y plane, the distance between the two Y planes passing through the machine product near the point. For three-axis straight-line lathes and sprockets, the determination is only applicable to the lathe part
On the Y coordinate, the distance between the two centers of the sprocket teeth
On the Y coordinate 1, the distance between the two Y planes passing through the center of the wheel seat. | |tt||For dual-wheel tires, it refers to the distance between two planes passing through the same center line. When there are several guns to measure, it should be divided into two to express each wheel base on the Y coordinate, the distance between two Y planes passing through the two most habitual points on the same belt
Y plane
gaxinun
letigth
Rear wheelbase
Claracr
Wheelbase (tire type)
Rear end length
erh.ung kuTeiar
murring
Sturfacc
Rear axle to soft joint
Total distance
rzataxlc
1o hinge
JB/T0722—2001
(Appendix to standard)
Terms and symbols of length dimensions
The distance between two X planes passing through the front of the machine at the most selected point on the X coordinate. For three-axle dump trucks and scrapers, this definition is not extended to the distance between two X planes passing through the sprocket axis and the axis of the least guide wheel on the X coordinate of the vehiclewww.bzxz.net
When the fuselage and the wheels are in the same straight line , on the x-axis. The distance between two x-planes passing through the center of the front and rear wheels of the machine.
When the machine is equipped with a double axle, the rear center of the definition always refers to the center of the rear wheel.
For three-axle dump and arm-hauling machines, this definition only applies to the auxiliary part
On the x-axis, the height between two x-planes at two points:
For auxiliary machines, it is also the distance between the guide wheel axis and the rear of the machine (excluding slow For wheeled reactors, the radius of rotation is the radius between the two planes passing through the wheel center and the rear of the machine. The radius of rotation is the radius between the two planes passing through the center of the axle axis. 722—2001
Appendix E
(Appendix to the standard)
Terms and symbols for radius dimensions
When the machine is made as small as possible, the distance between the center of the turning circle and the center line of the belt or tire that describes the largest arc on the 7th plane
When the machine is made as small as possible on the z plane, the distance between the center of the turning circle and the farthest point of the machine Note: For hydrostatic transmission belt-type machines, R is the center line of the machine. 3B/T9721—2001
Appendix F
(Appendix to the standard)
Terms and symbols for angular dimensions
When the machine is made as small as possible on the z plane, the distance between the center of the turning circle and the farthest point of the machine Note: For hydrostatic transmission belt-type machines, R is the center line of the machine.
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.