This standard refers to the international standard ISO 7891. JB/T 5961-1991 Dimensions and arrangement of holes for bulldozer angle blades JB/T5961-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T5961-91
Bulldozer
Dimensions and arrangement of holes on angle blades
Published on December 12, 1991
Published by the Ministry of Machinery and Electronics Industry of the People's Republic of China
Implementation on July 1, 1992
Mechanical Industry Standard of the People's Republic of China
Bulldozer:
Dimensions and arrangement of holes on angle blades
This standard adopts the international standard ISO7891 "Earth-moving machinery-angle blades of bulldozers-hole specifications". Subject content and scope of application
This standard specifies the type, size and arrangement of threaded holes on the angle blades of bulldozers. This standard applies to fixed, rotary, semi-U-shaped and U-shaped bulldozer blades of bulldozers. 2 Reference standards
GB8590
Bulldozer terminology
Bulldozerwww.bzxz.net
Bulldozer
Bolts for blades
3 Size and arrangement of holes
3.1 Type and size of holes
The type and size of bolt holes on angle blades shall comply with the provisions of Figure 1 and Table 1. 3.2 Arrangement of holes
JB/T 5961--91
The arrangement of bolt holes on angle blades is divided into three types: A, B and C. See Figure 2 and Table 2 for Type A, Figure 4 and Table 3 for Type B, and Figure 5 and Table 4 for Type C.
81°±2°
81°±2°
81*±2
120°±19
Reverse side
H-minimum effective thickness; D diameter of reverse cone hole of a square hole Approved by the Ministry of Machinery and Electronics Industry on December 12, 1991 and implemented on July 1, 1992
Basic size
Limit deviation
Basic size
Limit deviation
With reverse side dimension hole
Without reverse cone hole
Basic size
Limit deviation
JB/T5961—91|| tt||Teaching
Teaching
Figure 2 Arrangement of Type A Holes
Note: ①The number of bolt holes of the angle blade in Figure 24 can also be determined as needed. ②The three square holes on the bevel side of the angle blade of type A can also adopt the type in Figure 3. Ls
Applicable only to
Half U-shaped shovel
Additional instructions:
JB/T5961—91
Teaching
Teaching
Figure 4 Arrangement of Type B Holes
Figure 5 Arrangement of Type C Holes
This standard was proposed and managed by Tianjin Engineering Machinery Research Institute of the Ministry of Machinery and Electronics Industry. This standard was drafted by Tianjin Engineering Machinery Research Institute. The main drafter of this standard is Hao Runcai.
Applicable only to
Half-U-type shovel
People's Republic of China
Mechanical Industry Standard
Pusher
Dimensions and arrangement of angle blade holes
JB/T5961-91
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (P.O. Box 8144, Beijing, 100081)
Edition All rights reserved
No reproduction
Printed by Qinghe County Printing Factory, Hebei Province
Format 880×1230
Printing sheet 1/2
Number of words 6000
First printing in March 1992
First edition in March 1992
Print number 00.001-1000 Price 1.00 yuan
No. 0533
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