A key type steel ball type torque limiter type coupling

Abstract

The utility model discloses a kind of key type steel ball formula torque limiter type coupling, including rotating inner body, bearing, first connecting ring, connecting flange, steel ball installation ring, first steel ball placement groove, steel ball, convex ring, second steel ball placement groove, shift flange, third steel ball placement groove, butterfly spring placement slot, butterfly spring, positioning plate, first keyway, connecting key, torque value dial, first bolt mounting hole, second bolt mounting hole, adjusting bolt, inner hole, second keyway, first clamping jaw, second connecting ring, second clamping jaw, plum-blossom type elastomer, third keyway, first connecting bolt hole, second connecting bolt hole and connecting bolt.The utility model shows torque value by adopting torque value dial display torque value, the setting specification of torque value, with definite standard, the setting science of torque value dial, torque value has value, need not conversion, so the numerical value of torque value can be accurately obtained, improve the use performance of coupling.

Description

Technical Field

[0001] This utility model relates to the field of couplings, and in particular to a keyed steel ball torque limiter type coupling. Background Technology

[0002] Couplings are crucial components for transmitting torque in mechanical transmissions. However, the torque values ​​on existing coupling products are not standardized and lack clear specifications. Those with torque value dials often present percentages rather than precise torque values, requiring conversion. This increases the workload for workers.

[0003] Therefore, improvements must be made to address the aforementioned deficiencies. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a coupling with a keyed steel ball torque limiter, thereby solving the problems in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A keyed steel ball torque limiter coupling includes a rotating inner body. A bearing is fitted on the left side of the rotating inner body. A first connecting ring is provided at the left end of the bearing. The right end of the inner wall of the first connecting ring is fitted onto the left end of the outer wall of the bearing. A connecting flange is provided at the right end of the bearing. The left end of the inner wall of the connecting flange is fitted onto the right end of the outer wall of the bearing. A steel ball mounting ring is provided on the rotating inner body on the right side of the connecting flange. The outer wall of the steel ball mounting ring has multiple first steel ball placement grooves, and steel balls are placed in the first steel ball placement grooves. A protruding ring is provided on the right end face of the connecting flange. The right end face of the convex ring is provided with multiple second steel ball placement grooves that mate with the steel ball. The left end of the steel ball is located in the second steel ball placement groove. A displacement flange is fitted on the rotating inner body on the right side of the connecting flange. The inner side of the displacement flange is provided with a third steel ball placement groove that mates with the outer end of the steel ball. A butterfly spring placement groove is provided on the right end face of the displacement flange, and a butterfly spring is placed in the butterfly spring placement groove. A positioning plate is provided on the right side of the displacement flange. A first keyway is provided on the outer wall of the right end of the rotating inner body. The positioning plate is provided with a connecting key that mates with the first keyway. A torque value dial is provided on the right side of the positioning plate, and the torque value dial has a first bolt mounting hole. Multiple second bolt mounting holes are evenly distributed on the positioning plate. An adjusting bolt is provided in each of the first bolt mounting holes, and the left end of the adjusting bolt connects to one of the second bolt mounting holes. The rotating inner body has an inner hole that extends through it from left to right, and a second keyway is provided in the inner hole. Multiple circumferentially arranged first claws are provided on the left end face of the first connecting ring. A second connecting ring is provided on the left side of the first connecting ring, and multiple second claws that cooperate with the first claws are provided on the right end face of the second connecting ring. A plum blossom-shaped elastic body is provided between the first and second connecting rings. The plum blossom-shaped elastic body includes a circular body and multiple protrusions evenly distributed around the circular body. The protrusions are distributed between the first and second claws. A third keyway is provided on the inner wall of the second connecting ring. Multiple first connecting bolt holes are evenly distributed on the left end face of the first connecting ring, and multiple second connecting bolt holes corresponding to the first connecting bolt holes are provided on the left end face of the connecting flange. Connecting bolts that connect to the second connecting bolt holes are provided in the first connecting bolt holes.

[0007] Furthermore, an elastic retaining ring is provided on the outer wall of the left end of the rotating inner body.

[0008] Furthermore, an elastic retaining ring mounting groove is provided on the outer wall of the left end of the rotating inner body, and the elastic retaining ring is mounted on the elastic retaining ring mounting groove.

[0009] Furthermore, the outer wall of the second connecting ring is provided with a first fastening bolt hole that extends through to the third keyway, and a first fastening bolt is provided in the first fastening bolt hole.

[0010] Furthermore, a second fastening bolt hole is provided on the outer wall of the second connecting ring on the side of the first fastening bolt hole, extending to the inner wall of the second connecting ring, and a second fastening bolt is provided in the second fastening bolt hole.

[0011] Furthermore, the first keyway consists of two keyways located at corresponding ends on the outer wall of the rotating inner body, and the connecting key consists of two keyways that cooperate with the two first keyways.

[0012] Furthermore, the outer end of the left end face of the positioning plate is a rightward inclined surface.

[0013] Furthermore, there are twenty-four second bolt mounting holes.

[0014] Furthermore, the steel ball mounting ring is integrally formed with the rotating inner body.

[0015] The beneficial effects of this utility model are:

[0016] By adopting the above technical solution, the torque value is displayed on a torque scale, and the torque value is set in a standardized and clear manner. The torque scale is scientifically designed, and the torque value is specific and does not require conversion. This allows for accurate acquisition of the torque value, thereby improving the performance of the coupling. Attached Figure Description

[0017] Figure 1 This is a schematic front view of an embodiment of a keyed steel ball torque limiter coupling of the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram of the sectional structure of the middle AA section;

[0019] Figure 3 This is a right-side structural schematic diagram of an embodiment of a keyed steel ball torque limiter coupling of the present invention;

[0020] Figure 4 This is a three-dimensional structural diagram of an embodiment of a keyed steel ball type torque limiter coupling according to the present invention. Figure 1 ;

[0021] Figure 5 This is a three-dimensional structural diagram of an embodiment of a keyed steel ball type torque limiter coupling according to the present invention. Figure 2 ;

[0022] Figure 6 This is a three-dimensional structural diagram of the positioning plate in one embodiment of a keyed steel ball torque limiter coupling of this utility model;

[0023] Figure 7 This is a three-dimensional structural diagram of the rotating inner body in one embodiment of a keyed steel ball torque limiter coupling of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the connecting flange in one embodiment of a keyed steel ball torque limiter coupling of this utility model;

[0025] Figure 9 This is a three-dimensional structural diagram of the connection between the connecting flange, the steel ball, and the rotating inner body in one embodiment of a keyed steel ball torque limiter coupling of this utility model.

[0026] Figure 10 This is a right-side view of the displacement flange in one embodiment of a keyed steel ball torque limiter coupling of this utility model;

[0027] Figure 11 for Figure 10 Schematic diagram of the cross-sectional structure of the middle BB;

[0028] Figure 12 This is a three-dimensional structural diagram of the first connecting ring in one embodiment of a keyed steel ball torque limiter coupling of the present invention;

[0029] Figure 13 This is a three-dimensional structural diagram of the second connecting ring in one embodiment of a keyed steel ball torque limiter coupling of the present invention.

[0030] Figure 14 This is a three-dimensional structural diagram of the plum blossom-shaped elastomer in one embodiment of a keyed steel ball torque limiter coupling of this utility model.

[0031] Attachment numbers and their descriptions:

[0032] 1. Rotating inner body; 2. Elastic retaining ring; 3. Bearing; 4. Connecting flange; 5. Steel ball; 6. Displacement flange; 7. Butterfly spring; 8. Positioning plate; 9. Torque value dial; 10. Adjusting bolt; 11. Inner hole; 12. Second keyway; 13. Second bolt mounting hole; 14. Connecting key; 15. Elastic retaining ring mounting groove; 16. First keyway; 17. Steel ball mounting ring; 18. First steel ball placement groove; 19. Raised ring; 20. Second steel ball placement groove; 21. Butterfly spring placement groove; 22. Third steel ball placement groove; 23. First fastening bolt; 24. Second connecting ring; 25. First chuck; 26. Plum blossom-shaped elastic body; 27. First connecting ring; 28. Second chuck; 29. ​​Third keyway; 30. Second fastening bolt; 31. Connecting bolt; 32. Second connecting bolt hole; 33. First connecting bolt hole. Detailed Implementation

[0033] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0034] Reference Figures 1 to 14This utility model provides a keyed steel ball torque limiter coupling, comprising a rotating inner body 1, a bearing 3 sleeved on the left side of the rotating inner body 1, a first connecting ring 27 at the left end of the bearing 3, the right end of the inner wall of the first connecting ring 27 sleeved on the left end of the outer wall of the bearing 3, a connecting flange 4 at the right end of the bearing 3, the left end of the inner wall of the connecting flange 4 sleeved on the right end of the outer wall of the bearing 3, a steel ball mounting ring 17 on the rotating inner body 1 on the right side of the connecting flange 4, a plurality of first steel ball placement grooves 18 on the outer wall of the steel ball mounting ring 17, a steel ball 5 placed in each of the first steel ball placement grooves 18, and a protruding ring 1 on the right end face of the connecting flange 4. 9. The right end face of the convex ring 19 is provided with a plurality of second steel ball placement grooves 20 that cooperate with the steel ball 5. The left end of the steel ball 5 is located in the second steel ball placement groove 20. A displacement flange 6 is sleeved on the rotating inner body 1 on the right side of the connecting flange 4. The inner side of the displacement flange 6 is provided with a third steel ball placement groove 22 that cooperates with the outer end of the steel ball 5. A butterfly spring placement groove 21 is provided on the right end face of the displacement flange 6. A butterfly spring 7 is provided in the butterfly spring placement groove 21. A positioning plate 8 is provided on the right side of the displacement flange 6. A first keyway 16 is provided on the outer wall of the right end of the rotating inner body 1. A connecting key 14 that cooperates with the first keyway 16 is provided on the positioning plate 8. The positioning plate 8 has a torque value scale 9 on its right side, and a first bolt mounting hole on the torque value scale 9. The positioning plate 8 has a plurality of evenly distributed second bolt mounting holes 13. An adjusting bolt 10 is provided in each of the first bolt mounting holes, and the left end of the adjusting bolt 10 is connected to one of the second bolt mounting holes 13. The rotating inner body 1 has an inner hole 11 that extends through the rotating inner body from left to right, and a second keyway 12 is provided in the inner hole 11. The left end face of the first connecting ring 27 has a plurality of circumferentially arranged first claws 25. A second connecting ring 24 is provided on the left side of the first connecting ring 27, and the right end face of the second connecting ring 24 has a plurality of claws that interact with the first claws 25. The second claw 28 is matched with the first connecting ring 27 and the second connecting ring 24. A plum blossom-shaped elastic body 26 is provided between the first connecting ring 27 and the second connecting ring 24. The plum blossom-shaped elastic body 26 includes a circular body and a plurality of protrusions evenly distributed around the circular body. The protrusions are distributed between the first claw 25 and the second claw 28. A third keyway 29 is provided on the inner wall of the second connecting ring 24. A plurality of first connecting bolt holes 33 are evenly provided on the left end face of the first connecting ring 27. A plurality of second connecting bolt holes 32 corresponding to the first connecting bolt holes 33 are provided on the left end face of the connecting flange 4. A connecting bolt 31 connected to the second connecting bolt hole is provided on the first connecting bolt hole 33.

[0035] This technical solution uses a torque value dial 9 to display the torque value. The torque value setting is standardized and has clear criteria. The torque value dial 9 is scientifically set, and the torque value is specific and does not require conversion. This allows for accurate acquisition of the torque value, improving the performance of the coupling.

[0036] The circular main body and multiple protrusions are integrally molded. The plum blossom-shaped elastomer 26 is made of high-strength polyurethane. The high-strength polyurethane plum blossom-shaped elastomer 26 offers wear and oil resistance, high load-bearing capacity, long service life, and reliable safety. During use, the coupling operates stably and reliably, exhibiting excellent vibration damping, buffering, and electrical insulation properties. It also possesses significant axial, radial, and angular compensation capabilities.

[0037] Bearing 3 is a rolling bearing. The third steel ball placement groove 22 is an annular groove that mates with the steel ball 5. During operation, the first steel ball placement groove 18, the second steel ball placement groove 20, and the third steel ball placement groove 22 together form a receiving cavity to accommodate the steel ball 5.

[0038] During operation: When the transmitted torque exceeds the set slippage torque (overload), steel ball 5 will leave the second steel ball placement groove 20, causing slippage between the connecting flange 4 and the shifting flange 6. At this time, the transmitted torque is reduced to a very small value. Simultaneously, steel ball 5 pushes the shifting flange 6 to move axially to the right, triggering a sensor or displacement switch, causing the sensor to output a signal. This signal can then be used to control the operation or cut off the power source, stopping the equipment from rotating and protecting it. After the overload is eliminated, steel ball 5 automatically resets under the action of the disc spring 7, connecting flange 4, and shifting flange 6, thus resuming normal rotation.

[0039] For example, in some embodiments, an elastic retaining ring 2 is provided on the outer wall of the left end of the rotating inner body 1. The elastic retaining ring 2 allows for quick assembly and disassembly of components, facilitating replacement and maintenance.

[0040] For example, in some embodiments, an elastic retaining ring mounting groove 15 is provided on the outer wall of the left end of the rotating inner body 1, and the elastic retaining ring 2 is mounted on the elastic retaining ring mounting groove 15. This makes the connection of the elastic retaining ring 2 more stable. During installation, the positioning plate 8, the butterfly spring 7, the displacement flange 6, the steel ball 5, the connecting flange 4, and the bearing 3 can be sleeved onto the rotating inner body 1 from the left end, and then limited and fixed by the elastic retaining ring 2. This operation is convenient for installation and maintenance.

[0041] For example, in some embodiments, the outer wall of the second connecting ring 24 is provided with a first fastening bolt hole that extends through to the third keyway 29, and a first fastening bolt 23 is provided in the first fastening bolt hole. This can fix the connection between the second connecting ring 24 and the corresponding shaft.

[0042] For example, in some embodiments, a second fastening bolt hole is provided on the outer wall of the second connecting ring 24 on the side of the first fastening bolt hole, extending to the inner wall of the second connecting ring 24, and a second fastening bolt 30 is provided in the second fastening bolt hole. This makes the connection between the second connecting ring 24 and the corresponding shaft more secure, ensuring the stability of the transmission.

[0043] For example, in some embodiments, the first keyway 16 consists of two corresponding ends located on the outer wall of the rotating inner body 1, and the connecting key 14 consists of two keys that mate with the two first keyways 16. This makes the connection between the rotating inner body 1 and the torque value dial 9 more stable.

[0044] For example, in some embodiments, the outer end of the left end face of the positioning plate 8 is a rightward inclined slope. This allows for a gap between the second bolt mounting hole 13 and the displacement flange 6, facilitating observation of the tightening of the adjusting bolt 10 and preventing the adjusting bolt 10 from directly contacting the displacement flange 6 and causing any impact.

[0045] For example, in some embodiments, there are twenty-four second bolt mounting holes 13. This facilitates adjustment of the scale position on the torque value dial 9.

[0046] For example, in some embodiments, the steel ball mounting ring 17 is integrally formed with the rotating inner body 1. This makes the overall structure more stable.

[0047] In summary, this utility model uses a torque value dial to display the torque value. The torque value is set in a standardized and clearly defined manner. The torque value dial is scientifically designed, and the torque value is specific and does not require conversion. This allows for accurate acquisition of the torque value, thereby improving the performance of the coupling.

[0048] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A keyed steel ball type torque limiter coupling, characterized in that, The device includes a rotating inner body, a bearing fitted on the left side of the rotating inner body, a first connecting ring at the left end of the bearing, the right end of the inner wall of the first connecting ring fitting onto the left end of the outer wall of the bearing, a connecting flange at the right end of the bearing, the left end of the inner wall of the connecting flange fitting onto the right end of the outer wall of the bearing, a steel ball mounting ring on the rotating inner body to the right of the connecting flange, a plurality of first steel ball placement grooves on the outer wall of the steel ball mounting ring, and steel balls placed in the first steel ball placement grooves, and a convex ring on the right end face of the connecting flange, the convex ring having a plurality of grooves corresponding to the first steel ball placement grooves. A second steel ball placement groove is provided to accommodate the steel ball, with the left end of the steel ball located within the second steel ball placement groove. A displacement flange is fitted onto the rotating inner body on the right side of the connecting flange. A third steel ball placement groove is provided on the inner side of the displacement flange to accommodate the outer end of the steel ball. A butterfly spring placement groove is provided on the right end face of the displacement flange, and a butterfly spring is placed within the butterfly spring placement groove. A positioning plate is provided on the right side of the displacement flange. A first keyway is provided on the outer wall of the right end of the rotating inner body. The positioning plate has a connecting key that mates with the first keyway. A torque... The torque value dial has a first bolt mounting hole, and the positioning plate has a plurality of second bolt mounting holes evenly distributed. An adjusting bolt is mounted on each of the first bolt mounting holes, and the left end of the adjusting bolt connects to one of the second bolt mounting holes. The rotating inner body has an inner hole that extends through it from left to right, and a second keyway is provided in the inner hole. The left end face of the first connecting ring has a plurality of circumferentially arranged first claws. A second connecting ring is located on the left side of the first connecting ring, and a plurality of second claws that mate with the first claws are located on the right end face of the second connecting ring. A plum blossom-shaped elastic body is provided between the first and second connecting rings. The plum blossom-shaped elastic body includes a circular body and a plurality of protrusions evenly distributed around the circular body. The protrusions are distributed between the first and second claws. A third keyway is provided on the inner wall of the second connecting ring. A plurality of first connecting bolt holes are evenly distributed on the left end face of the first connecting ring, and a plurality of second connecting bolt holes corresponding to the first connecting bolt holes are provided on the left end face of the connecting flange. Connecting bolts that connect to the second connecting bolt holes are provided in the first connecting bolt holes.

2. The keyed steel ball torque limiter coupling according to claim 1, characterized in that, An elastic retaining ring is provided on the outer wall of the left end of the rotating inner body.

3. The keyed steel ball type torque limiter coupling according to claim 2, characterized in that, The outer wall of the left end of the rotating inner body is provided with an elastic retaining ring mounting groove, and the elastic retaining ring is mounted on the elastic retaining ring mounting groove.

4. The keyed steel ball torque limiter coupling according to claim 1, characterized in that, The outer wall of the second connecting ring is provided with a first fastening bolt hole that extends through to the third keyway, and a first fastening bolt is provided in the first fastening bolt hole.

5. The keyed steel ball torque limiter coupling according to claim 4, characterized in that, A second fastening bolt hole is provided on the outer wall of the second connecting ring on the side of the first fastening bolt hole, and a second fastening bolt is provided on the second fastening bolt hole.

6. The keyed steel ball torque limiter coupling according to claim 1, characterized in that, The first keyway consists of two keyways located at corresponding ends on the outer wall of the rotating inner body, and the connecting key consists of two keyways that mate with the two first keyways.

7. The keyed steel ball torque limiter type coupling according to claim 1, characterized in that, The outer end of the left end face of the positioning plate is a rightward inclined surface.

8. The keyed steel ball torque limiter coupling according to claim 1, characterized in that, The second bolt mounting hole has twenty-four holes.

9. The keyed steel ball torque limiter coupling according to claim 1, characterized in that, The steel ball mounting ring is integrally formed with the rotating inner body.

Images