A quick disassembly coupling for mining pumps

Abstract

The present invention belongs to the field of coupling technology, and in particular, is a quick-disassembly coupling for mining pumps. In view of the problem that the current coupling cannot realize the process of disassembly and assembly in one process, the following scheme is proposed, including a fixed shell, a floating adjustment chamber is provided inside the fixed shell, a driving floating assembly is provided on one side of the fixed shell, a driven floating assembly is provided on the other side of the fixed shell, and a vertically arranged central turntable fixing ring is fixed in the middle position inside the fixed shell. The present invention uses a tool to screw the quick-release adjustment bolt cap, so that the driving gear drives the locking bolt rotating plate gear to rotate, and then drives the locking bolt rotating plate to rotate, and the four locking bolts are pushed out and engaged with the locking bolt slots to limit the position, so as to realize quick installation. When dismantling, only the quick-release adjustment bolt cap needs to be screwed in the opposite direction to remove the driving universal joint and the driven universal joint.

Description

Technical Field

[0001] The invention relates to the technical field of couplings, and in particular to a quick-disassembly coupling for a mining pump. Background Art

[0002] A coupling is a mechanical component used to connect two shafts or a shaft and a rotating part. In the process of transmitting motion and power, they rotate together without disengaging and without changing the direction of rotation and the magnitude of torque. Couplings are usually used in various mechanical transmission systems to compensate for the relative displacement between shafts, absorb vibration, buffer and reduce vibration, and improve the dynamic performance of the entire shaft system.

[0003] The Chinese patent with publication number CN113700761A discloses a coupling that is easy to disassemble and replace quickly, including four half-couplings assembled together and an elastic block; the first half-coupling and the fourth half-coupling are both connected to the shaft in a stepped shaft shape; the first half-coupling is connected to the second half-coupling by bolts; the third half-coupling is connected to the fourth half-coupling by bolts; the elastic block is located between the second half-coupling and the third half-coupling.

[0004] The above patent has the following problems: the disassembly and assembly process of the coupling in the prior art for coupling the driving shaft and the driven shaft is cumbersome, and the disassembly and assembly process cannot be achieved in one process. Instead, the connecting parts need to be assembled, and true rapid disassembly and assembly cannot be achieved. The prior art is not easy to solve such problems. Therefore, there is an urgent need for a rapid disassembly and assembly coupling for mining pumps to solve the above problems. Summary of the invention

[0005] Based on the technical problem that the existing coupling cannot realize the process of disassembly and assembly in one process, the present invention proposes a quick disassembly and assembly coupling for a mining pump.

[0006] The present invention proposes a quick disassembly coupling for a mining pump, comprising a fixed shell, a floating adjustment chamber is provided inside the fixed shell, a driving floating assembly is arranged at one side of the fixed shell, a driven floating assembly is arranged at the other side of the fixed shell, a vertically arranged central turntable fixing ring is fixed at the middle position inside the fixed shell, the driving floating assembly comprises four first gas lift rods hingedly installed on the inner wall of the circumference of the fixed shell, a driving floating swing ring is installed between the four first gas lift rods, and a rotating driving member is installed inside the driving floating swing ring. A floating turntable, a driving floating rotating shaft is fixed to the side wall of the driven floating turntable, a driven floating assembly includes four second air lift rods hingedly installed on the circumferential inner wall of the fixed shell, a driven floating swing ring is installed between the four second air lift rods, a rotating driven floating turntable is installed inside the driven floating swing ring, a driving universal joint is fixed to one side of the driving floating rotating shaft, a driven floating turntable shaft is fixed to the side wall of the driven floating turntable, a driven universal joint is fixed to one side of the driven floating turntable shaft, and quick release mechanisms are provided at the ends of the driving universal joint and the driven universal joint.

[0007] Preferably, a central turntable limiting ring is fixed to the circumferential outer wall of the central turntable, a driving floating turntable limiting ring is fixed to the circumferential outer wall of the driving floating turntable, and a driven floating turntable limiting ring is fixed to the circumferential outer wall of the driven floating turntable.

[0008] Preferably, the inner walls of the central turntable fixed ring, the driving floating swing ring and the driven floating swing ring are all provided with annular grooves, and the central turntable limiting ring, the driving floating turntable limiting ring and the driven floating turntable limiting ring are rotatably engaged with the annular grooves on the inner walls of the central turntable fixed ring, the driving floating swing ring and the driven floating swing ring respectively.

[0009] Preferably, the central turntable is provided with six central turntable ball head holes distributed in a circular array, and the interiors of the six central turntable ball head holes are all sleeved with a swing center rod, and a swing ring sealing ring is fixed between the circumferential outer walls of the driving floating swing ring and the driven floating swing ring and the inner wall of the fixed shell.

[0010] Preferably, the side of the driven floating turntable is provided with six driven floating turntable ball head holes distributed in a circular array, and the interiors of the six driven floating turntable ball head holes are all sleeved with a driven floating turntable ball head rod, and one end of the driven floating turntable ball head rod is slidably sleeved with one end of the swinging middle rod.

[0011] Preferably, the side of the driven floating turntable is provided with six driven floating turntable ball head holes distributed in a circular array, and the interiors of the six driven floating turntable ball head holes are all sleeved with a driven floating turntable ball head rod, and one end of the driven floating turntable ball head rod is slidably sleeved with the other end of the swinging middle rod.

[0012] Preferably, the circumferential outer wall of the driving floating swing ring is fixed with four driving floating swing spherical ball seats distributed in a circumferential array, and the four driving floating swing spherical ball seats are sleeve-mounted with the end position ball heads of four first gas lift rods; the circumferential outer wall of the driven floating swing ring is fixed with four driven floating swing spherical ball seats distributed in a circumferential array, and the four driven floating swing spherical ball seats are sleeve-mounted with the end position ball heads of four second gas lift rods.

[0013] Preferably, the driving universal joint and the driven universal joint are both provided with universal joint inner grooves, and the driving floating rotating shaft and the driven floating turntable shaft are slidably mounted on the universal joint inner grooves of the driving universal joint and the driven universal joint respectively.

[0014] Preferably, the quick-release assembly includes a driving gear slot hole opened inside the driven universal joint and the driving universal joint, a driving gear is installed inside the driving gear slot hole through a bearing, a driving worm is installed inside the driving gear slot hole through a bearing, the driving worm is installed in matching with the driving gear slot hole, the driving worm extends to the shaft end of the driven universal joint and the outer wall of the driving universal joint, and a quick-release adjustment bolt cap is fixed, a locking bolt groove is opened inside the driven universal joint and the driving universal joint, a locking bolt rotating plate is installed on the locking bolt groove at the axial centerline position through a bearing, a locking bolt rotating plate gear is fixed on the rotating shaft of the locking bolt rotating plate, and the locking bolt rotating plate gear is meshed with the driving gear.

[0015] Preferably, the circumferential outer walls of the driven universal joint and the driving universal joint are provided with four array-distributed locking bolt limit grooves, the inner walls of the locking bolt limit grooves are slidably installed with locking bolts, locking bolt limit plates are fixed on both sides of the locking bolts, and a return spring is fixed between the locking bolt limit plates and the inside of the locking bolt limit grooves, and the driving universal joint and the driven universal joint are respectively clamped with a driving shaft connecting sleeve and a driven shaft connecting sleeve at one end of the quick release mechanism, and the inner walls of the driving shaft connecting sleeve and the driven shaft connecting sleeve are both provided with locking bolt clamping grooves, and the driving shaft connecting sleeve and the driven shaft connecting sleeve are respectively fixed on the driving shaft and the driven shaft.

[0016] The beneficial effects of the present invention are:

[0017] The quick disassembly coupling for a mining pump uses a tool to screw the quick-release adjusting bolt cap, so that the driving gear drives the locking bolt rotating plate gear to rotate, thereby driving the locking bolt rotating plate to rotate, and four locking bolts are pushed out and engaged with the locking bolt slots to limit the position, so that quick installation can be achieved. When removing, the driving universal joint and the driven universal joint can be removed by only screwing the quick-release adjusting bolt cap in the opposite direction.

[0018] The quick disassembly and assembly coupling for mining pumps drives the floating turntable, the middle turntable and the driven floating turntable through sliding connection between the driving floating turntable ball head rod and the driven floating turntable ball head rod and the swinging middle rod, so that the driving shaft and the driven shaft can produce high and low position changes during the transmission process, and has a transmission effect of high and low position changes compared with traditional linear coupling transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a quick disassembly coupling for a mining pump proposed by the present invention;

[0020] Figure 2 A schematic diagram of the internal structure of a fixed housing of a quick disassembly coupling for a mining pump proposed by the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of a floating turntable for a quick disassembly and assembly coupling of a mining pump proposed by the present invention;

[0022] Figure 4 A schematic diagram of the internal structure of a universal joint of a quick disassembly coupling for a mining pump proposed by the present invention;

[0023] Figure 5 This is a schematic diagram of the position structure of one side of a quick-release mechanism for a quick-release coupling for a mining pump proposed by the present invention;

[0024] Figure 6 This is a schematic diagram of the other side position structure of a quick-release mechanism for a quick-release coupling for a mining pump proposed by the present invention;

[0025] Figure 7 The present invention is a schematic diagram of a locking bolt structure for a quick disassembly coupling of a mining pump.

[0026] In the figure: 1, fixed housing; 2, driven floating turntable shaft; 3, driven universal joint; 4, driving universal joint; 5, driving shaft connecting sleeve; 6, driven shaft connecting sleeve; 7, swing ring sealing ring; 8, driven floating turntable; 9, quick release adjustment bolt cap; 10, locking bolt; 11, locking bolt slot; 12, driving floating rotating shaft; 13, driving floating turntable; 14, driving floating swing ring; 15, driven floating swing ring; 16, floating adjustment chamber; 17, middle turntable; 18, middle turntable fixing ring; 19, second gas lift rod; 20, first gas lift rod; 21, swing middle rod; 22, driven 1. The ball head rod of the movable floating turntable; 23. The limit ring of the center turntable; 24. The limit ring of the driving floating turntable; 25. The limit ring of the driven floating turntable; 26. The ball head hole of the center turntable; 27. The ball head hole of the driving floating turntable; 28. The ball head rod of the driving floating turntable; 29. ​​The driving floating swinging global head seat; 30. The driven floating swinging global head seat; 31. The inner slide groove of the universal joint; 32. The driving gear; 33. The slot hole of the driving gear; 34. The driving worm; 35. The locking bolt slot; 36. The locking bolt rotating plate; 37. The locking bolt rotating plate gear; 38. The locking bolt limit slot; 39. The reset spring; 40. The locking bolt limit plate. DETAILED DESCRIPTION

[0027] Reference Figure 1-Figure 7 A quick disassembly coupling for a mining pump comprises a fixed housing 1, a floating adjustment chamber 16 is provided inside the fixed housing 1, a driving floating assembly is provided at one side of the fixed housing 1, a driven floating assembly is provided at the other side of the fixed housing 1, a vertically arranged central turntable fixing ring 18 is fixed at the middle position inside the fixed housing 1, the driving floating assembly comprises four first gas lift rods 20 hingedly installed on the inner wall of the circumference of the fixed housing 1, a driving floating swing ring 14 is installed between the four first gas lift rods 20, a rotating driving floating turntable 13 is installed inside the driving floating swing ring 14, and a driving floating turntable 13 is installed inside the driving floating swing ring 14. A driving floating rotating shaft 12 is fixed to the side wall of the dynamic floating turntable 13, and the driven floating assembly includes four second air lift rods 19 hingedly installed on the circumferential inner wall of the fixed shell 1, and a driven floating swing ring 15 is installed between the four second air lift rods 19, and a rotating driven floating turntable 8 is installed inside the driven floating swing ring 15, a driving universal joint 4 is fixed to one side of the driving floating rotating shaft 12, a driven floating turntable shaft 2 is fixed to the side wall of the driven floating turntable 8, and a driven universal joint 3 is fixed to one side of the driven floating turntable shaft 2, and quick release mechanisms are provided at the ends of the driving universal joint 4 and the driven universal joint 3.

[0028] Furthermore, a central turntable limiting ring 23 is fixed to the circumferential outer wall of the central turntable 17, a driving floating turntable limiting ring 24 is fixed to the circumferential outer wall of the driving floating turntable 13, and a driven floating turntable limiting ring 25 is fixed to the circumferential outer wall of the driven floating turntable 8.

[0029] Furthermore, the inner walls of the central turntable fixed ring 18, the driving floating swing ring 14 and the driven floating swing ring 15 are all provided with annular grooves, and the central turntable limiting ring 23, the driving floating turntable limiting ring 24 and the driven floating turntable limiting ring 25 are rotatably engaged with the annular grooves on the inner walls of the central turntable fixed ring 18, the driving floating swing ring 14 and the driven floating swing ring 15 respectively.

[0030] Furthermore, the central turntable 17 is provided with six central turntable ball head holes 26 distributed in a circular array, and the interiors of the six central turntable ball head holes 26 are all sleeved with a swing center rod 21, and a swing ring sealing ring 7 is fixed between the circumferential outer walls of the driving floating swing ring 14 and the driven floating swing ring 15 and the inner wall of the fixed shell 1.

[0031] Furthermore, six driving floating turntable ball head holes 27 distributed in a circular array are opened on the side of the driving floating turntable 13, and the interiors of the six driving floating turntable ball head holes 27 are all sleeved with a driving floating turntable ball head rod 28, and one end of the driving floating turntable ball head rod 28 is slidably mounted on one end of the swinging middle rod 21.

[0032] Furthermore, six driven floating turntable ball head holes distributed in a circular array are opened on the side of the driven floating turntable 8, and the interiors of the six driven floating turntable ball head holes are all sleeved with a driven floating turntable ball head rod 22, and one end of the driven floating turntable ball head rod 22 is slidably sleeved with the other end of the swinging middle rod 21.

[0033] Furthermore, the circumferential outer wall of the driving floating swing ring 14 is fixed with four driving floating swing global head seats 29 distributed in a circumferential array, and the four driving floating swing global head seats 29 are installed with the end position ball head sleeves of the four first gas lift rods 20. The circumferential outer wall of the driven floating swing ring 15 is fixed with four driven floating swing global head seats 30 distributed in a circumferential array, and the four driven floating swing global head seats 30 are installed with the end position ball head sleeves of the four second gas lift rods 19.

[0034] Furthermore, the driving universal joint 4 and the driven universal joint 3 are both provided with internal universal joint grooves 31, and the driving floating rotating shaft 12 and the driven floating turntable shaft 2 are slidably mounted on the internal universal joint grooves 31 inside the driving universal joint 4 and the driven universal joint 3 respectively.

[0035] Furthermore, the quick-release assembly includes a driving gear slot hole 33 opened inside the driven universal joint 3 and the driving universal joint 4, a driving gear 32 is installed inside the driving gear slot hole 33 through a bearing, a driving worm 34 is installed inside the driving gear slot hole 33 through a bearing, the driving worm 34 is installed in matching with the driving gear slot hole 33, the driving worm 34 extends to the shaft end of the outer wall of the driven universal joint 3 and the driving universal joint 4, and a quick-release adjustment bolt cap 9 is fixed, a locking bolt slot 35 is opened inside the driven universal joint 3 and the driving universal joint 4, the locking bolt slot 35 is located at the axial centerline position, and a locking bolt rotating plate 36 is installed through a bearing, a locking bolt rotating plate gear 37 is fixed on the rotating shaft of the locking bolt rotating plate 36, and the locking bolt rotating plate gear 37 is meshed with the driving gear 32.

[0036] Furthermore, the circumferential outer walls of the driven universal joint 3 and the driving universal joint 4 are provided with four array-distributed locking bolt limit grooves 38, the inner walls of the locking bolt limit grooves 38 are slidably installed with locking bolts 10, locking bolt limit plates 40 are fixed on both sides of the locking bolt 10, and a return spring 39 is fixed between the locking bolt limit plates 40 and the inside of the locking bolt limit grooves 38. The driving universal joint 4 and the driven universal joint 3 are respectively clamped with a driving shaft connecting sleeve 5 and a driven shaft connecting sleeve 6 at one end of the quick release mechanism, and the inner walls of the driving shaft connecting sleeve 5 and the driven shaft connecting sleeve 6 are both provided with locking bolt clamping grooves 11, and the driving shaft connecting sleeve 5 and the driven shaft connecting sleeve 6 are respectively fixed on the driving shaft and the driven shaft.

[0037] When the present invention is used, the fixed housing 1 is fixed, and the driving shaft connecting sleeve 5 and the driven shaft connecting sleeve 6 are fixed to the driving shaft and the driven shaft respectively. During the process of quick disassembly and assembly, the driving universal joint 4 and the driven universal joint 3 are inserted into the driving shaft connecting sleeve 5 and the driven shaft connecting sleeve 6, and the quick-release adjusting bolt cap 9 is screwed with a tool to make the driving gear 32 drive the locking bolt rotating plate gear 37 to rotate, thereby driving the rotation of the locking bolt rotating plate 36, and the four locking bolts 10 are pushed out and engaged with the locking bolt slots 11 to limit the position, so as to achieve quick installation. When dismantling, it is only necessary to screw the quick-release adjusting bolt cap 9 in the opposite direction to remove the driving universal joint 4 and the driven universal joint 3; during the transmission process, since the positions of the driving shaft and the driven shaft will produce changes in height and angle during the transmission process, the adjustment can be achieved by first adjusting the driving universal joint 4 and the driven universal joint 3. During the process, the floating adjustment chamber 16 inside the fixed shell 1 is filled with lubricating oil, the driving floating swing ring 14 is supported by four first air lift rods 20, and its position is changed in height and left and right by the movement of the driving shaft, and the driven floating swing ring 15 is supported by four second air lift rods 19, and its position is changed in height and left and right by the movement of the driven shaft. In the process of floating position change, the driving floating turntable ball head rod 28 and the driven floating turntable ball head rod 22 are offset as the driving floating turntable 13 and the driven floating turntable 8 float, respectively, and the driving floating turntable ball head rod 28 and the driven floating turntable ball head rod 22 are slidably connected with the swinging middle rod 21, so the driving floating turntable 13, the center turntable 17 and the driven floating turntable 8 can still maintain transmission when swinging, providing a better transmission effect, and the height of the driving shaft and the driven shaft can also produce a larger adjustment amount.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A quick-disassembly coupling for a mining pump, comprising a fixed housing (1), wherein a floating adjustment chamber (16) is provided inside the fixed housing (1), characterized in that: A driving floating assembly is disposed at one side of the fixed shell (1), and a driven floating assembly is disposed at the other side of the fixed shell (1). A vertically disposed central rotating disk fixing ring (18) is fixed at a middle position inside the fixed shell (1). The driving floating assembly comprises four first gas lift rods (20) hingedly mounted on the circumferential inner wall of the fixed shell (1), a driving floating swing ring (14) is mounted between the four first gas lift rods (20), a rotating driving floating rotating disk (13) is mounted inside the driving floating swing ring (14), and a driving floating rotating shaft (12) is fixed to the side wall of the driving floating rotating disk (13). The driven floating assembly comprises four second air lift rods (19) hingedly mounted on the inner wall of the circumference of a fixed shell (1), a driven floating swing ring (15) is mounted between the four second air lift rods (19), a rotating driven floating turntable (8) is mounted inside the driven floating swing ring (15), a driving universal joint (4) is fixed to one side of the driving floating rotating shaft (12), a driven floating turntable shaft (2) is fixed to the side wall of the driven floating turntable (8), a driven universal joint (3) is fixed to one side of the driven floating turntable shaft (2), and quick release mechanisms are provided at the ends of the driving universal joint (4) and the driven universal joint (3).

2. A quick disassembly coupling for a mining pump according to claim 1, characterized in that: A central turntable limiting ring (23) is fixed to the circumferential outer wall of the central turntable (17), a driving floating turntable limiting ring (24) is fixed to the circumferential outer wall of the driving floating turntable (13), and a driven floating turntable limiting ring (25) is fixed to the circumferential outer wall of the driven floating turntable (8).

3. A quick disassembly coupling for a mining pump according to claim 2, characterized in that: The inner walls of the central turntable fixed ring (18), the driving floating swing ring (14) and the driven floating swing ring (15) are all provided with annular grooves, and the central turntable limiting ring (23), the driving floating turntable limiting ring (24) and the driven floating turntable limiting ring (25) are rotatably engaged with the annular grooves on the inner walls of the central turntable fixed ring (18), the driving floating swing ring (14) and the driven floating swing ring (15), respectively.

4. A quick disassembly coupling for a mining pump according to claim 1, characterized in that: The central turntable (17) is provided with six central turntable ball head holes (26) distributed in a circumferential array, and a swing center rod (21) is sleeved inside the six central turntable ball head holes (26). A swing ring sealing ring (7) is fixed between the circumferential outer walls of the driving floating swing ring (14) and the driven floating swing ring (15) and the inner wall of the fixed housing (1).

5. A quick disassembly coupling for a mining pump according to claim 4, characterized in that: The side surface of the driving floating turntable (13) is provided with six driving floating turntable ball head holes (27) distributed in a circumferential array, and the insides of the six driving floating turntable ball head holes (27) are all sleeved with driving floating turntable ball head rods (28), and one end of the driving floating turntable ball head rod (28) is slidably sleeved and installed with one end of the swinging middle rod (21).

6. A quick disassembly coupling for a mining pump according to claim 4, characterized in that: The side surface of the driven floating turntable (8) is provided with six driven floating turntable ball head holes distributed in a circumferential array, and the interiors of the six driven floating turntable ball head holes are all sleeved with driven floating turntable ball head rods (22), and one end of the driven floating turntable ball head rod (22) is slidably sleeved with the other end of the swinging middle rod (21).

7. A quick disassembly coupling for a mining pump according to claim 1, characterized in that: The circumferential outer wall of the driving floating swing ring (14) is fixed with four driving floating swing spherical ball seats (29) distributed in a circumferential array, and the four driving floating swing spherical ball seats (29) are mounted with ball heads at the end positions of four first gas lift rods (20). The circumferential outer wall of the driven floating swing ring (15) is fixed with four driven floating swing spherical ball seats (30) distributed in a circumferential array, and the four driven floating swing spherical ball seats (30) are mounted with ball heads at the end positions of four second gas lift rods (19).

8. A quick disassembly coupling for a mining pump according to claim 1, characterized in that: The driving universal joint (4) and the driven universal joint (3) are both provided with universal joint inner grooves (31) inside, and the driving floating rotating shaft (12) and the driven floating turntable shaft (2) are respectively slidably mounted on the universal joint inner grooves (31) inside the driving universal joint (4) and the driven universal joint (3).

9. A quick disassembly coupling for a mining pump according to claim 1, characterized in that: The quick-release assembly comprises a driving gear slot (33) provided inside the driven universal joint (3) and the driving universal joint (4), a driving gear (32) being installed inside the driving gear slot (33) via a bearing, a driving worm (34) being installed inside the driving gear slot (33) via a bearing, the driving worm (34) being installed in matching relationship with the driving gear slot (33), an axial end of the driving worm (34) extending to the outer wall of the driven universal joint (3) and the driving universal joint (4) being fixed with a quick-release adjustment bolt cap (9), a locking bolt slot (35) being provided inside the driven universal joint (3) and the driving universal joint (4), a locking bolt rotating plate (36) being installed on the locking bolt slot (35) at an axial centerline position via a bearing, a locking bolt rotating plate gear (37) being fixed on the rotating shaft of the locking bolt rotating plate (36), and the locking bolt rotating plate gear (37) being meshed with the driving gear (32).

10. A quick disassembly coupling for a mining pump according to claim 9, characterized in that: The circumferential outer walls of the driven universal joint (3) and the driving universal joint (4) are provided with four array-distributed locking bolt limit grooves (38); the inner walls of the locking bolt limit grooves (38) are slidably mounted with locking bolts (10); locking bolt limit plates (40) are fixed on both sides of the locking bolt (10); a return spring (39) is fixed between the locking bolt limit plates (40) and the inside of the locking bolt limit grooves (38); the driving shaft connecting sleeve (5) and the driven shaft connecting sleeve (6) are respectively clamped at one end of the driving universal joint (4) and the driven universal joint (3) located at the quick release mechanism; the inner walls of the driving shaft connecting sleeve (5) and the driven shaft connecting sleeve (6) are both provided with locking bolt clamping grooves (11); the driving shaft connecting sleeve (5) and the driven shaft connecting sleeve (6) are respectively fixed on the driving shaft and the driven shaft.

Images