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  • Name: WGZ gear coupling with brake wheel
  • NO.: 0171
  • Release time: 2013-04-01
  • Views : 55

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A gear coupling is a mechanical device for transmitting torque between two shafts that are not collinear. It consists of a flexible joint fixed to each shaft. The two joints are connected by a third shaft, called the spindle.

Each joint consists of a 1:1 gear ratio internal/external gear pair. The tooth flanks and outer diameter of the external gear are crowned to allow for angular displacement between the two gears. Mechanically, the gears are equivalent to rotating splines with modified profiles. They are called gears because of the relatively large size of the teeth.

Gear couplings and universal joints are used in similar applications. Gear couplings have higher torque densities than universal joints designed to fit a given space while universal joints induce lower vibrations. The limit on torque density in universal joints is due to the limited cross sections of the cross and yoke. The gear teeth in a gear coupling have high backlash to allow for angular misalignment. The excess backlash can contribute to vibration.

Gear couplings are generally limited to angular misalignments, i.e., the angle of the spindle relative to the axes of the connected shafts, of 4-5°. Universal joints are capable of higher misalignments.

Advantages of Tanso gear coupling

1. Lowest price based on large scale production.

2. High and stable quality level.

3. Widely used in various mechanical and hydraulic fields.

4. Compensation for axial, radial and angular misalignment.

5. Convenient axial plugging assembly.

6. No brittlement at low temperature.

7. Good slippery and frictional properties.

8. Resistance to chemical corrosion.

9. Rich experience working with big companies in this field.

Design advantages

The Flexible Coupling method of connecting rotating shafts is a vital and necessary technique. Large massive shafting, loosely mounted in sleeve bearings and merely joined together by rigidly bolted flanges, cannot provide efficient mechanical power transmission. Especially today, as machine designers and builders demand higher speeds, higher torques, and higher misalignment capacities, the need for “flexibly connecting” this equipment becomes apparent.

A flexible coupling is necessary since it is practically impossible to achieve and maintain perfect alignment of coupled rotating shafts. During initial assembly and installation, precise alignment of the shaft axes is not only difficult to achieve but in many cases it is economically unfeasible. During operation, alignment is even more difficult to maintain. Shaft misalignment – caused by uneven bearing wear, flexure of structural members, settling of foundations, thermal expansion, shaft deflection and other factors – is an operating certainty. Because these factors are extremely difficult to control, a flexible coupling serves as an ideal answer to compensate or minimize the effects of unavoidable misalignment and end movement of coupled shafts.

 

A flexible coupling must provide three basic functions:

1. Physically couple together two rotating shafts for efficient transmission of mechanical power, transferring the torque of one shaft to the other, directly and with constant velocity.

2. Compensate for all types of misalignment between rotating, connected shafts without inducing abnormal stresses and loads on connected equipment, and without tangible loss of power.

3. Compensate for end or axial movement of the coupled shafts, preventing either shaft from exerting excessive thrust on the other and allowing each to rotate in its normal position.

   

Three types of misalignment must be effectively accommodated by a flexible coupling.

1. Parallel Offset – axes of connected shafts are parallel, but not in the same straight line.

2. Angular – axes of shafts intersect at center point of coupling, but not in the same straight line.

3. Combined Angular-Offset – axes of shafts do not intersect at point of coupling and are not parallel.

  

Product description

Dimensions of coupling

Type

Nominal torque Tn

/N·m

Max speed [n]

/r·min-1

Bore diameter d1d2dZ

Bore length L

D0

D

D2

D4

B

F

C

C1

C2

Mass m/kg

Moment of inertia I

/kg·m2

Y

J1Z1

WGZ1

710

4000

1214

32

-

160

200

250

122

98

60

58

30

30

-

-

5.62

0.0078

161819

42

-

20

-

-

202224

52

-

10

-

-

2528

62

44

3

19

18

30323538

82

60

23

12

4042

112

84

29

12

WGZ2

1250

4000

2224

52

-

200

250

315

150

118

77

68

30

20

-

-

9.65

0.022

2528

62

-

10

-

-

30323538

82

60

3

23

16

40424548505556

112

84

29

16

WGZ3

2500

4000

2224

52

-

200

250

315

170

140

90

80

30

33

-

-

16.5

0.047

2528

62

-

23

-

-

30323538

82

60

3

23

25

40424548505556

112

84

29

16

6063

142

107

36

WGZ4

4500

3000

30323538

82

-

250

315

400

200

160

112

90

30

13

-

-

25.3

0.098

40424548505556

112

84

3

29

17

606365707175

142

107

36

80

172

132

41

WGZ5

7100

3000

30323538

82

-

315

400

225

180

128

100

30

23

-

-

34.7

0.174

40424548505556

112

84

3

29

19

606365707175

142

107

36

808590

172

132

 

WGZ6

10000

3000

323538

82

-

315

400

245

200

145

112

30

35

-

-

51.3

0.29

40424548505556

112

-

5

-

-

606365707175

142

107

38

20

80859095

172

132

43

100

212

167

48

WGZ7

14000

2500

323538

82

-

400

500

 

272

230

160

122

30

45

-

-

68

0.53

40424548505556

112

-

15

-

-

606365707175

142

107

5

38

20

80859095

172

132

43

100110

202

167

48

WGZ8

20000

2500

5556

112

-

400

450

290

245

176

136

30

29

--

 

79

0.71

606365707175

142

107

5

38

34

80859095

172

132

43

20

100110120125

212

167

48

20

WGZ9

25000

2000

65707175

142

107

400

500

630

315

265

190

140

30

5

38

38

106.5

1.05

80859095

172

132

43

28

100110120125

212

167

48

130140

252

202

53

WGZ10

40000

2000

75

142

-

400

500

630

355

300

225

165

30

28

-

-

159

1.74

80859095

172

132

5

43

38

100110120125

212

167

48

28

130140150

252

202

53

160

302

242

63

WGZ11

56000

1700

859095

172

-

500

630

710

412

345

256

180

40

15

-

-

215

3.67

100110120125

212

162

8

51

52

130140150

252

202

56

160170180

302

242

 

WGZ12

80000

1700

120125

212

162

500

630

710

440

375

288

207

40

8

51

45

303

6.4

130140150

252

202

56

32

160170180

302

242

66

190200

352

282

76

WGZ13

112000

1700

140150

252

202

630

710

490

425

320

235

50

8

56

38

391

10.45

160170180

302

242

66

32

190200220

352

282

76

WGZ14

160000

1500

160170180

302

242

710

800

545

462

362

265

50

10

68

32

523

17.48

190200220

352

282

78

240250260

410

330

-

10

 

Dimensions of Brake wheel

Diameter of brake wheel

D0

T

k

Mass

m

/kg

Moment of inertia

I/kg·m2

Diameter of brake wheel D0

T

k

Mass

m

/kg

Moment of inertia

I/kg·m2

160

70

6

2.83

0.014

500

210

18

56.3

3.07

200

85

8

5.2

0.043

630

265

22

101.3

8.55

250

105

10

10.1

0.128

710

300

22

145.8

15.52

315

135

12

17.2

0.354

800

340

26

203

26.76

400

170

14

33.4

1.11

 

 

 

 

 

 

Key words : gear coupling