This standard refers to the international standard ISO 3019-3-1988. JB/T 5919-1991 Dimensions and markings of mounting flanges and shaft extensions for crankshaft-connecting rod radial piston hydraulic motors (I) JB/T5919-1991 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T591991
Crankshaft Connecting Rod Radial Piston Hydraulic Motor
Dimensions and Markings of Mounting Flange and Shaft Extension (I) Issued on December 11, 1991
Implementation by the Ministry of Machinery and Electronics Industry of the People's Republic of China on July 1, 1992
Mechanical Industry Standard of the People's Republic of China
Crankshaft Connecting Rod Radial Piston Hydraulic Motor
Dimensions and Markings of Mounting Flange and Shaft Extension ()JB/T591991
This standard refers to the international standard IS03019-3-1988 "Hydraulic transmission - Positive displacement pumps and motors - Dimension series and marking codes for mounting flanges and shaft extensions - Part 3: Polygonal flanges (including circular flanges)". Subject content and scope of application
This standard specifies the dimensions and markings of the mounting flange and shaft extension of crankshaft connecting rod radial piston hydraulic motors (hereinafter referred to as motors). This standard applies to single-row five-cylinder crankshaft connecting rod radial piston hydraulic motors with rated pressures of 16 and 20 MPa and displacements of 0.2 to 6.3 L/r.
2 Reference standards
GB1095
GB1096
GB1569
GB1570
GB1801
3 Mounting flange
Flat keyChamfer dimensions of keys and keyways
Type dimensions of ordinary flat keys
Cylindrical shaft extensions
Conical shaft extensions
Tolerances and fit dimensions up to 500mm hole, shaft tolerance zone and fitDimension series and markings for mounting flanges and shaft extensions for hydraulic pumps and motors (II) Module, reference tooth shape and tolerance of cylindrical spur involute splines (tooth side fit)Dimension table of cylindrical spur involute splines (tooth side fit)The types and dimensions of polygonal mounting flanges are specified in Figure 1 and Table 1. ?
Screw hole
Approved by the Ministry of Machinery and Electronics Industry on December 11, 1991Polygonal flange (including circular flange)
Implementation on July 1, 1992
Displacement -
Note: 1) The limit deviation shall be in accordance with GB1801. JB/T591991
Hole (slot)
M36×3
M42×3
M56×4
M64×4
M90×4
EXT19ZX2.5m
×30P×6h
EXT24ZX2.5m
×30P×6h
EXT31Z×2.5m
×30P×6h
EXT31ZX2.5m
×30P×6h
EXT24Z×5mwwW.bzxz.Net
X30P×6h
2) is the tolerance value of the detachable coupling. When a rigid coupling is used, the tolerance value should be smaller than the value in the table. 3) It is allowed to be replaced by a threaded hole or an open hole.
Zhekai wire flower chain
4) When the displacement is less than 0.2L/r or greater than 6.3L/r, the dimensions of the mounting flange and shaft extension shall comply with GB2353.2. 2
4 Shaft extension
4.1 Cylindrical shaft extension
JB/T591991
The dimensions of the shaft extension diameter and length are as specified in Figure 2 and Table 1. The keyway dimensions and limit deviations are as specified in GB1569, GB1095 and GB1096.
4.2 1:10 conical shaft extension with external thread The dimensions of the shaft extension diameter and length are as specified in Figure 3 and Table 1. The keyway dimensions and limit deviations are as specified in GB1095 and GB1096. 4.3 Involute spline shaft extension
The dimensions of shaft extension diameter and length are as specified in Figure 4 and Table 1. Tolerances and fits shall be in accordance with GB3478.1 and GB3478.2. 5 Marking
As specified in GB2353.2.
Standardization Week 1:
Additional Notes:
This standard is under the jurisdiction of the National Hydraulic and Pneumatic Standardization Technical Committee. This standard was drafted by the Shanghai Ship Research and Design Institute of China State Shipbuilding Corporation and the Beijing Institute of Automation of the Mechanical Industry of the Ministry of Machinery and Electronics Industry.
The main drafters of this standard are Yang Qi and He Guomin. People's Republic of China
Mechanical Industry Standard
Crankshaft Connecting Rod Radial Piston Hydraulic Motor
Dimensions and Markings of Mounting Flange and Shaft Extension (I) JB/T5919-91
Published and distributed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry Printed by the Mechanical Standardization Research Institute of the Ministry of Machinery and Electronics Industry (PO Box 8144, Beijing 100081)
Copyright reserved
Reproduction prohibited
Format 880×1230
01/16 Sheet 1/2
Word count 6000
First edition in April 1992
First printing in April 1992
Print run 0.001-500 Price 1.60 yuan
No. 0796
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