This standard is applicable to the transmission shaft system connecting two coaxial lines, and has the performance of compensating the relative offset of the two shafts and general vibration reduction. Working temperature -200°C～＋70°C, transmitting nominal torque 250N·m--180 000 N·m. GB/T 5014-2003 Elastic pin coupling GB/T5014-2003 standard download decompression password: www.bzxz.net

This standard is a revision of GB/T5014-1985 "Elastic Pin Coupling". The main changes of this standard compared with GB/T5014-1985 are as follows: the nominal torque and allowable speed have been readjusted, and its nominal torque has been increased by more than 25% compared with the original standard. The coupling model has been modified according to GB/T12458 "Coupling Classification": the dimensions that must be available when selecting couplings have been added; the original Appendix A "Elastic Pin Coupling Selection Instructions" has been deleted. This standard was proposed and managed by the National Technical Committee for Standardization of Machine Shafts and Accessories. The drafting units of this standard are: Mechanical Science Research Institute, Deyang Erzhong Basic Parts Factory. The main drafters of this standard are: Ming Cuixin, Wang Jiannong, Gao Wen, Liu Xueguang. The previous versions of the standards replaced by this standard are: GB/T5014-1985.
GB/T5014—2003
1 Scope
Elastic pin coupling
GB/T5014—2003
This standard specifies the type, basic parameters and main dimensions of LX and LXZ elastic pin couplings (hereinafter referred to as couplings), and gives technical requirements, inspection rules, marking, packaging and storage. This standard is applicable to transmission shaft systems that connect two coaxial lines, and has the performance of compensating the relative offset of the two shafts and general vibration reduction. The working temperature is 20℃~～+70℃, and the nominal torque transmitted is 250N·m～180000N·m. 2 Normative references
The clauses in the following documents become the clauses of this standard through reference in this standard. For all dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this standard. However, parties that reach an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version shall apply to this standard. GB/T191 Pictorial marking for packaging, storage and transportation
GB/T699 High-quality carbon structural steel
GB/T1348 Ductile iron castings
Coupling shaft hole and connection type and size
GB/T 3852
GB/T 4879
Rust-proof packaging
GB/T5783 Hexagon head bolts with full thread
GB/T6388 Shipping and receiving marks for transport packaging
GB/T11352
GB/T 12458
GB/T 13384
3 Classification
3.1 Type
Casting carbon steel parts for general engineering
Classification of couplings
General technical conditions for packaging of electromechanical products
Couplings are divided into two types: LX and LXZ.
3.2 Model marking
The model and marking of couplings shall comply with the provisions of GB/T12458. 4 Basic parameters and main dimensions
4.1 The basic parameters and main dimensions of LX elastic pin couplings shall comply with the provisions of Figure 1 and Table 1. GB/T5014-—2003
J-type shaft hole
Z-type shaft hole
Nominal torque
T,/(N*m)
Permissible speed
(n/(r/mm)
Y-type shaft hole
Type glaze hole
Figure 1 LX-type elastic pin coupling
Table 1 LX-type elastic pin coupling
Shaft hole diameter
Shaft hole length
JJI, Z type
Unit: mm
Moment of inertia
/Ckg·my
Nominal torque
T/(N*m)
Permissible speed
[n]/(r/min)
Shaft hole diameter
Table 1 (continued)
Shaft hole length
J, JI, Z type
GB/T 5014---2003
Unit: mm
Moment of inertia
I/(kg·m2)
GB/T 5014—2003
Nominal torque
T,/(N·m)
Permissible speed
[n]/(r/min)
Shaft hole diameter
di sdzvd,
Table 1 (continued)
Shaft hole length
J, J, Z type
142107
167212
202252
167212
410230
Unit is meter
Moment of inertia
/(kg· m2x
Nominal torque
125000
180000
Permissible speed
[n]/(r/min)
Shaft hole diameter
Table 1 (continued)
Shaft hole length
JJ, Z type
242302
2421302
282352
282352
540340
GB/T 5014—2003
Unit: mm
Moment of inertia
/(kg^rm2>
GB/T5014—2003
Nominal torque
180000
Permissible speed
Enl/(r/min)
Shaft hole diameter
Table 1 (continued)
Shaft hole length
J, Z type
Note: The mass and rotating feed plate are calculated according to the J/Y shaft hole combination type and the minimum shaft hole diameter 110
The unit is mm
Moment of inertia
I/(kg·m*)
4.2The basic parameters and main dimensions of the LXZ type elastic pin coupling with brake wheel shall comply with the provisions of Figure 2 and Table 2A
J type shaft hole
Z type shaft
|Y-type shaft hole
Plastic shaft hole
Figure 2 LXZ type elastic pin coupling with brake wheel Table 2 LXZ type elastic pin coupling with brake wheel Nominal torque
Permissible speed
EnJ/(r/min)
Shaft hole diameter
Shaft hole length
JJ, Z type
Unit is mm
Moment of inertia
/(kg+ mym/kg
200/120/5585282.5/42
Nominal torque
T,/(N·m)
Permissible speed
En]/(r/min)
Shaft hole diameter
Bag 2 (continued)
Shaft hole length
J, JI, Z type
1200120
GB/T 5014--2003
Unit is mm
20016075
Moment of inertia
I/(kg*m*m/kg
31516075132362.5660313
315195100132453660.504
112400195100168453
GB/T 5014—2003
Nominal torque
Permissible speed
T,/(N?m)l
ICn)/(r/min)
Shaft hole diameter
dtda,
Table 2 (continued)
Shaft hole length
3. JZ type
172132
142107
400|195100
400220/120/168/45
Unit is mm
Moment of inertia
I/(kg * rmam/kg
500/220|120|210|45/ 3
40028014016856
280/140/210/ 56
Nominal torque
T./(N·m)
11 200
16 000
Permissible speed
[n]/(r/min）
Shaft hole diameter
did2,
Table 2 (continued)
Shaft hole length
J, JI, Z type
172132
212167
142107
172132
500280|| tt||212167212bzxz.net
172132
212167
500320
63032017026556
163036020026556
GB/T5014—2003
Unit: mm
Moment of inertia
I/(kg●m2）|| tt||GB/T5014—2003
Nominal torque
T./(N·m)
Permissible speed
[n]/(r/min)
Shaft hole diameter
did2,
Table 2 (continued)
Shaft hole length
J, Ji, type
167212
7104102 3029863
710480280298
800480|28033575
Note: Mass and moment of inertia are calculated according to the J/Y shaft-hole combination type and the minimum shaft-hole diameter. 4.3 The marking method of the coupling and the shaft-hole and connection type and size shall comply with the provisions of GB/T3852. 4.4 When the coupling is used, the relative offset of the two connected shafts shall not exceed the provisions of Table 3. 10
Unit: mm
Moment of inertia
I/(kg·m)m/kg
Allowable compensation for coupling
LXZ12LXZ13
Note 1: The radial compensation is measured at half of the maximum outer circle width of the half coupling. 0.25
GB/T 5014--2003
LX13[.X14
0.250.250.250.25
Note 2: The compensation listed in the table refers to the relative offset of the two axes caused by installation error, impact, vibration, deformation, temperature change and other factors. The installation reading error must be less than the value in the table.
Technical requirements
The coupling shall comply with the requirements of this standard and be manufactured according to the product drawings and technical documents approved by the prescribed procedures. 5.1
The materials of the main parts of the coupling shall comply with the provisions of 4. 52
Table 4 Materials of the main parts of the coupling
Part name
Half coupling
Brake wheel
The mechanical properties of MC nylon shall comply with the provisions of Table 5. 5.3
ZG 270-~500
QT500-7
MC nylon
Performance grade 8.8 grade
Table 5 Mechanical properties of MC nylon
Mechanical properties
Tensile strength
Bending strength
Compressive strength
Impact toughness (notch)
Elongation
Brinell strength
Brittle temperature
Heat deformation temperature
5. The pin shall not have shrinkage holes, bubbles, impurities and other defects that affect performance. 5.5 The outer surface of the brake wheel shall be tempered, with a hardness of 35HRC~45HRC and a depth of 2mm~3mm. Preparation
GB/T 699
GB/T11352
GB/T1348
GB/T5783
14-~21
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