This standard specifies the type, basic parameters, technical requirements, test methods, inspection rules, marking, packaging, transportation and storage of tooth chain continuously variable transmissions. This standard is applicable to speed regulation ratios of 2.8 to 6, motor power of 0.75 to 22kW, which can rotate in both forward and reverse directions. The working environment temperature is -40 to 40°C, or when the ambient temperature is lower than 0°C, the lubricating oil needs to be preheated before starting. Tooth chain continuously variable transmission. JB/T 6952-1993 Tooth chain continuously variable transmission JB/T6952-1993 Standard download and decompression password: www.bzxz.net

J19 | | tt | | JB |
Ministry of Machinery Industry of the People's Republic of China
Released
Implemented on 1994-07-01
2
Theme content and scope of application
Quote Standards
Classification
3
4
Technical requirements
Test methods and inspection rules
5
Marking, packaging , storage.
item
times
(1)
(1)
(1)
(16)||tt ||(17)
(17)
Mechanical Industry Standard of the People's Republic of China
Tooth Chain Continuously Variable Transmission
1 Topic Content and Scope of Application||tt| |JB/T6952-93
This standard specifies the type, parameters, technical requirements, inspection rules and markings, packaging and storage of tooth chain (sliding chain type) continuously variable transmission
This standard It is suitable for gears with speed regulation ratio 2.8~6, motor power 0.75~22kW, which can rotate in both forward and reverse directions. The working environment temperature is -40~1040℃, or the ambient temperature is lower than 0℃, and the lubricating oil needs to be preheated before starting. Chain continuously variable transmission. 2 Reference standards
GB1095
GB1184
GB3077
GB4879
GB9439
GB10095
GB/T13306||tt || GB/T13384 |
Anti-rust packaging
Gray iron castings
Involute cylindrical gear precision
Label
General technical conditions for mechanical and electrical product packaging
Sliding Chip type stepless transmission chain
3.1 Connection type and code
Basic type: No reduction device is installed on the input shaft and output shaft end, the code is Pa.
The first original type : The basic input shaft end is equipped with a reduction device. The additional reduction device is directly connected to the motor, code-named F; the additional b.
reduction device is connected to the power through a coupling or pulley, code-named N. C. The second additional type: the basic type is equipped with a reduction device at the end of the output shaft. There are 1 pair of reduction gears in the reduction device, code-named B; 2 pairs of gears, code-named C; 3 pairs of gears, code-named D, d the third The input shaft and output shaft end of the original type and basic type are equipped with reduction devices, and the connection methods are the same as those of the first derivative type and the second derivative type respectively. Its code name is a combination of the codes of the first derived type and the second derived type. For example, in the third derived continuously variable transmission of a certain model, the reduction device installed at the input end is directly connected to the motor, and the reduction device installed at the output end passes through 1 pair of gear reduction, codenamed PFB. 3.2 Specifications and codes
is divided into 7 types according to the center distance of the two pairs of sprockets, see Table 1. Table 1
Specification code
Sprocket center distance
0
120
Approved by the Ministry of Machinery Industry on 1993-07-13
1
160
2
190
3
248
4
304
5|| tt||360
mm
6
430
1994-07-01 Implementation
1
3.3 Structural type and code| |tt||a.
b.
d.
JB/T6952-93
The operator faces the speed dial and operates the speed control handwheel with his left hand Codenamed L. The operator faces the speed indicator plate and operates the speed control handwheel with his right hand. The code is R. The code for the plane where the input shaft and output shaft are perpendicular to the horizontal plane is (vertical). The code for the input shaft and output shaft on the same horizontal plane is (horizontal). 3.4 Tooth Chain Type Continuously Variable Transmission Marking Method
Marking Example:
Standard Number
Output Shaft Reduction Ratio
Speed ??Ratio
Structural Type|| tt||Operating handwheel position
Specification code
Output reduction device code
Input reduction device code
Tooth chain continuously variable transmission model
The power of the whole machine is 1.5kW. There are no acceleration and deceleration devices at both ends of the inlet and outlet shafts. The speed adjustment ratio is 3. The vertical a.
type tooth chain continuously variable transmission is operated with the left hand. The speed control handwheel is operated with the left hand. Mark It is: P, L (vertical)-3JB/T 6952-93
b. The reduction device installed at the input shaft end is directly connected to the motor, and the reduction device installed at the output shaft end uses 2 pairs of gears for reduction. The third type of vibration type, horizontal tooth chain continuously variable transmission with motor power of 4kW, right-hand operation, speed regulation ratio of 6, and output shaft reduction ratio of 1/30, marked:
PFC,R (Sleep)-6 The output parameters are as specified in Table 2, and its overall dimensions should comply with the requirements of Figure 1 and Table 4. 3.5.2 The rated output parameters of the first derivative are as specified in Table 2, and its overall dimensions should comply with the requirements of Figure 2 and Table 4. 3.5.3 The rated output parameters of the second derivative type are as specified in Table 3, and its overall dimensions should comply with the requirements of Figure 3 and Table 4. 3.5.4 The third derivative type is a combination of the first derivative type and the second derivative type. Its technical parameters and dimensions at the input end are the same as those of the first derivative, and its technical parameters and dimensions at the output end are the same as those of the second derivative. See Table 2, Table 3 and Table 4. 2
Model
P.
PF.
PN.
P,
PF,
PN,
P.
PF
PN;
P.|| tt||PF,
PN;
P.
PF.
PN.
P:
PF||tt| |PN,
P,
PF.
PN.
equipped motor
power
kw
0 . 75
1.5
3
7. 5
11
15
18.5
22||tt| |Input shaft speed
/min
Basic type
820
720
720
720
720|| tt||720
720
550
625
JB/T6952-93
Table 2
Output shaft speed m|| tt||Speed ??ratio
First deep-seated type
1400
1400
1420
1440
1440||tt| |1440
1460
1470
1470
R
6
4.5
6
4.5
6
4.5
3
6
4.5
3
4. 5
4.5
e
6
4.5
5. 6
4
2.8
r/min
max
1764
1525
1245
1770
1530
1245
1770
1530
1245
1770
1530
1245
1770
1530| |tt||1245
1770
1530
1245
1770
1530
1245
1300||tt ||1250
1045
min
294
339
415
295
340
415
295
340
415
295
340
415
295
340| |tt||415
295
340
415
295
340
415
232||tt 312 tt min
ntmax
时
0.35
0.56
1.12
2. 24||h||3.73||h||5.90||h||9. 48
10.40
11.20
11.20
16.40
18. 60||h||19.40||h||0. 35
0.43
0. 59
0. 67
0. 82
1.12
1.34
1.64
1.86
2. 06
2. 60
2.97
3. 35
4.10
4. 74
5.33
6.60
5.60
6. 30
7.80
7.46
9.70
11.50
推行车矩
N+m
Ns min|| tt||ngmaxwww.bzxz.net
时
时
2. 94
3. 53
4.31
了
8.5
12
14
17
19.5
22.5| |tt||28. 0
31
36
44
46. 5
58.0
70.5
55
68.5
83
117
137
176.5| |tt||9.8
18.5
37.0
58.5
93.0
149
176.5
294||tt ||JB/T 695293
卧式
意式
图 1P,~P.
JB/T 695293
卧式||tt ||立式
PN,~PN,
K
JB/T 6952-93
卧式
立式
PE.-PF Electric motor
power
kw
0.75
1. 5. |tt||1/1.96
1/3.47
1/6.5
1/10
1/17.7
1/31.9||tt ||1/1.96
1/3.47
1/6.5
1/10
1/17.7
JB/T 695293||tt| |表3
身速比
R
6
4.5
3
5
4. 5
3
6
4.5
3
6
4. 5
3
6
4.5
3
6
4. 5
6
4.5
6
4. 5
3
6
4. 5
3
6
4.5
3
6
4. 5
3
推行辅 达合\
r/min
max
900
774
636|| tt||504
440
360
270
234
192
176.4
153||tt| |124. 5
100
86.4
70.3
55.2
48.15
39
900
774| |tt||636
504
440
360
270
234
192
174||tt ||153
126
100
87
69
min
150
172
212
84
98
120
45
52
64
29.4
34.0| |tt||41.5
16.7
19.2
23.4
9.2
10.7
13
150||tt ||172
212
84
98
120
45
52
64
29
34
42
16.5
19. 2
23
output power
kw
nsmax
时
0.63
0.63
0.63
0.61
0.61
0.61
1.12
1.27
1.27
1.04
1.23|| tt||1. 23
1.12
1. 27
1.27
1.04
1.23
1.23
1. 04
1.23
1.23
R; min||h||时||ht||0. 31
0.36
0. 43
0. 31
0. 36
0. 43
0.31
0.36
0. 43
0. 27
0.33
0. 40
0. 27
0. 33
0. 40
0. 27
0. 33
0. 40
0. 60
0. 67
0.82
0.56
0. 63
0.78
0. 48
0. 52
0. 66
0. 56
0. 63
0.78
0. 56
0. 63. 9
8
9.8
12.4
14.2
17.3
23
26
32| |tt||33.68
38.83
47.72
59.41
68.76
84.51
107.6
123.4||tt ||152.3
11.8
15. 2
19.1
20.6
27.4
33.3
38. 2
51
62.7
56.8
75.5
92.1
100
133.3
163.7| |tt||n: min
时
20
34
50
95
166.5
185| |tt||37.2
65.7
98
181.3
323.4
7
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