GB/T 7120-2009
Active
National standards
GB/T 7120-2009 Three-point quick-attaching coupler of implement to agricultural wheeled tractors—Category 3N、4N
GB/T 7120-2009 Three-point quick-attaching coupler of implement to agricultural wheeled tractors—Category 3N、4N
Basic Information
Standard Code:
GB/T 7120-2009
Standard Type:
National standards
Standard Status:
Active
is_force_gb:
no
CCS Name:
\nHydraulic suspension system
ICS Name:
Agricultural tractors and traction vehicles
Publish Date:
2009-11-15
Implement Date:
2010-05-01
Pages:
8 pages
Scope
This standard specifies the hitching devices for Class 3N and Class 4N narrow-track tractors, the hitching devices for Class 3 and Class 4 special agricultural implements with a smaller distance between the lower suspension points recommended by GB/T 15931-1996, and the connection dimensions and spatial dimensions of the three-point suspension devices for agricultural wheeled tractors specified in GB/T 15931-1996. This standard applies to Class 3 and Class 4 agricultural wheeled tractors specified in GB/T 15931-1996 that use double rear wheels or perform narrow-row operations with narrow-track three-point suspension devices.
Development Information
Replace the following standards
GB/T 7120-1986
Referenced Standards
GB/T 1593.1-1996 Agricultural wheeled tractors—Rear-mounted three-point linkage—Part 1:Categories 1,2,3 and 4
GB/T 6960.6-1995 Tractor terminology—Hydraulic hitch system and drawbar, hook
GB/T 6960.6-2007 Tractor terminology—Part 6:Hydraulic hitch system and drawbar, hook
JB/T 6684-1993 The gap range of the agricultural equipment connected by the three-point lifting device
Adopt standards
ASAE S278.6 DEC94(SAE J909 JUN93)(美国农业工程师协会标准)
Related Standards
GB/T 5262-1985
Replaced
GB 7121-1986
Replaced
GB 7121-1986 Agricultural and forestry wheeled tractors—Protective structures—Test method in the strength and acceptance conditions
GB 1593.4-1987
Abolished
GB 1593.4-1987 Agricultural wheeled tractors—Three-point linkage—Part 4:Category 0
GB/T 13875-1992
Replaced
GB/T 13875-1992 The general specification for walking tractors
GB/T 13876-1992
Replaced
GB/T 13876-1992 Agricultural wheeled tractors—Evaluation criteria of whole body vibration of the operator
GB/T 13878-1992
Abolished