Toothed expansion elastic coupling

Abstract

The utility model discloses a tooth expansion type elastic coupling, include: driving shaft, tooth cover, one end of driving shaft goes into tooth cover, driving part, one end of tooth cover goes into driving part and is connected with driving part bolt, passive element, passive element and driving part clamping, passive shaft, one end of passive shaft goes into passive shaft. Through the application of the utility model, the tooth expansion type elastic coupling is proposed, when the elastic element needs to be replaced, the motor reducer does not need to be moved, and the complicated equipment transmission shaft centering work does not need to be carried out again, only needs to be according to the specific operation process, loosens the fastener and the positioning screw and moves the driving part, can take out the damaged elastic element and replaces the new piece, is favorable to the maintenance time and manpower cost of saving, reduces the difficulty and safety risk of maintenance work, in addition, it still has the integration of the clutch function, therefore does not need to increase the clutch device extra, is favorable to the simplification equipment structure, reduces the cost.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and in particular to a toothed expansion type flexible coupling. Background Technology

[0002] Flexible couplings, as a long-established and widely used mechanical product, play a stable transmission role in various mechanical equipment. However, with the continuous development of industrial technology and the increasing complexity of application scenarios, existing flexible couplings have gradually exposed a series of problems, making it difficult to meet actual production needs: First, the existing flexible couplings have a relatively simple structure. When the elastic component is damaged or aged and needs to be replaced, due to the limitations of its structural design, it is necessary to move the motor reducer and re-align the equipment's transmission shaft. This process is not only cumbersome and consumes a lot of manpower, material resources, and time, but also requires a high level of professional skills from the operators. If the alignment is inaccurate, it will seriously affect the transmission efficiency and stability of the equipment, increasing the risk of equipment failure. Second, in situations where power equipment needs to be switched, existing flexible couplings cannot directly meet the requirements, often necessitating the addition of a clutch. This not only increases the cost and complexity of the equipment but also occupies more installation space, making the overall layout of the equipment more compact and hindering equipment maintenance and management. Utility Model Content

[0003] In view of this, and to solve the above problems, the purpose of this utility model is to provide a toothed expansion type flexible coupling, comprising:

[0004] drive shaft;

[0005] A toothed sleeve, with one end of the drive shaft extending into the toothed sleeve;

[0006] The active component has one end of the toothed sleeve extending into it and bolted to it.

[0007] A passive component, which engages with the active component;

[0008] A passive shaft, one end of which extends into the passive shaft.

[0009] In another preferred embodiment, the toothed sleeve includes: a sleeve body and a plurality of first teeth, a drive key shaft hole is formed through the middle of the sleeve body, one end of the drive shaft extends into the drive key shaft hole, a plurality of first teeth are uniformly arranged circumferentially on the outer wall of one end of the sleeve body, and a separation hole and a transmission hole are formed on the outer wall of the other end of the sleeve body, the transmission hole being disposed between the separation hole and the first teeth.

[0010] In another preferred embodiment, a through hole is formed in the middle of the active member, and the other end of the sleeve passes through the through hole and extends out of the active member. A plurality of T-shaped grooves are uniformly formed on the outer wall of one end of the active member in the circumferential direction. Each first tooth is disposed in one of the T-shaped grooves. A first threaded hole is formed in the inner wall of each T-shaped groove. The first threaded hole is arranged along the axial direction of the active member.

[0011] In another preferred embodiment, each of the T-slots includes a first slot and a second slot arranged vertically, the first slot and the second slot are connected, each of the first teeth is disposed in a second slot, and the first threaded hole is provided through the inner wall of the second slot.

[0012] In another preferred embodiment, the active member has a plurality of second teeth, and each of the first slots is disposed between two adjacent second teeth.

[0013] In another preferred embodiment, a passive key shaft hole is provided through the middle of the passive component, one end of the passive shaft extends into the passive key shaft hole, an annular step is provided on the outer wall of the passive component, and a plurality of third teeth are uniformly provided circumferentially at one end of the passive component, and an installation groove is formed between two adjacent third teeth, and each third tooth is provided in a first groove.

[0014] In another preferred embodiment, it further includes: an elastic element, wherein each of the mounting slots is provided with an elastic element, the elastic element has a mounting hole in the middle, the upper end of the elastic element has an arc-shaped stop, and the second tooth passes through the mounting hole and abuts against the arc-shaped stop.

[0015] In another preferred embodiment, the device further includes a fastener, wherein each of the first teeth has a second threaded hole that is directly opposite to the first threaded hole, the fastener being disposed in the first threaded hole and the second threaded hole, and the first tooth being connected to the driving member through the fastener.

[0016] In another preferred embodiment, the device further includes a positioning screw, wherein a positioning hole is provided on the outer wall of the active component, the positioning hole being operably positioned opposite the separation hole or the transmission hole, and the positioning screw being disposed in the positioning hole and the separation hole opposite to each other, or the positioning screw being disposed in the positioning hole and the transmission hole opposite to each other.

[0017] In another preferred embodiment, it further includes: an active flat key and a passive flat key, wherein the active flat key is disposed in the active key shaft hole and connected to the active shaft, the positioning screw abuts against the active flat key, and the passive flat key is disposed in the passive key shaft hole and connected to the passive shaft.

[0018] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: By applying the present invention, a toothed expansion type flexible coupling is proposed. When the flexible component needs to be replaced, there is no need to move the motor reducer or perform complex realignment of the equipment drive shaft. Simply follow a specific operating procedure, loosen the fasteners and positioning screws, and move the driving component to remove the damaged flexible component and replace it with a new one. This helps save maintenance time and labor costs, and reduces the difficulty and safety risks of maintenance work. Furthermore, it integrates a clutch function, thus eliminating the need for an additional clutch device, which simplifies the equipment structure and reduces costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the toothed expansion type flexible coupling of this utility model;

[0020] Figure 2 This is a schematic diagram of the toothed sleeve of the toothed expansion type elastic coupling of this utility model;

[0021] Figure 3 This is a schematic diagram of the driving component of the toothed expansion type elastic coupling of this utility model;

[0022] Figure 4 This is a schematic diagram of the driven component of the toothed expansion type elastic coupling of this utility model.

[0023] Figure 5 This is a schematic diagram of the elastic element of the toothed expansion type elastic coupling of this utility model.

[0024] In the attached image:

[0025] 1. Drive shaft; 2. Gear sleeve; 3. Driven component; 4. Driven component; 5. Driven shaft; 6. Elastic component; 7. Fastener; 8. Positioning screw; 11. Driven key; 21. Sleeve body; 22. First tooth; 210. Driven key shaft hole; 211. Separation hole; 212. Transmission hole; 220. Second threaded hole; 31. Through hole; 32. T-slot; 33. First threaded hole; 34. Second tooth; 35. Positioning hole; 41. Driven key shaft hole; 42. Third tooth; 43. Mounting groove; 51. Driven key; 61. Mounting hole; 62. Arc-shaped stop. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0029] like Figure 1-5 As shown, a preferred embodiment of a toothed expansion type flexible coupling is illustrated, comprising:

[0030] Drive shaft 1 is connected to an external power source;

[0031] Tooth sleeve 2, one end of the drive shaft 1 extends into tooth sleeve 2;

[0032] One end of the toothed sleeve 2 extends into the active component 3 and is bolted to the active component 3;

[0033] Passive component 4 is connected to active component 3.

[0034] Passive shaft 5, one end of which extends into the passive shaft 5.

[0035] Furthermore, as a preferred embodiment, the toothed sleeve 2 includes: a sleeve body 21 and a plurality of first teeth 22. A drive key shaft hole 210 is provided through the middle of the sleeve body 21. One end of the drive shaft 1 extends into the drive key shaft hole 210. A plurality of first teeth 22 are evenly arranged circumferentially on the outer wall of one end of the sleeve body 21. A separation hole 211 and a transmission hole 212 are provided on the outer wall of the other end of the sleeve body 21. The transmission hole 212 is disposed between the separation hole 211 and the first teeth 22.

[0036] Furthermore, as a preferred embodiment, a through hole 31 is provided through the middle of the active member 3, and the other end of the sleeve 21 passes through the through hole 31 and extends out of the active member 3. A plurality of T-shaped grooves 32 are uniformly provided circumferentially on the outer wall of one end of the active member 3. Each first tooth 22 is provided in a T-shaped groove 32. A first threaded hole 33 is provided through the inner wall of each T-shaped groove 32. The first threaded hole 33 is provided along the axial direction of the active member 3.

[0037] Furthermore, as a preferred embodiment, each T-slot 32 includes a first slot and a second slot arranged vertically, the first slot and the second slot are connected, each first tooth 22 is disposed in a second slot, and a first threaded hole 33 is provided through the inner wall of the second slot.

[0038] Furthermore, as a preferred embodiment, the active member 3 has a plurality of second teeth 34, and each first slot is disposed between two adjacent second teeth 34.

[0039] Furthermore, as a preferred embodiment, a passive key shaft hole 41 is provided through the middle of the passive member 4, one end of the passive shaft 5 extends into the passive key shaft hole 41, an annular step is provided on the outer wall of the passive member 4, and a plurality of third teeth 42 are uniformly provided on one end of the passive member 4 in the circumferential direction, and an installation groove 43 is formed between two adjacent third teeth 42, and each third tooth 42 is provided in a first groove.

[0040] Furthermore, as a preferred embodiment, it also includes: an elastic element 6, wherein each mounting groove 43 is provided with an elastic element 6, the elastic element 6 has a mounting hole 61 in the middle, and the upper end of the elastic element 6 has an arc-shaped stop 62, and the second tooth 34 passes through the mounting hole 61 and abuts against the arc-shaped stop 62. Furthermore, the elastic element 6 can absorb vibration and impact loads during equipment operation, thereby playing a role in buffering and vibration reduction.

[0041] Furthermore, as a preferred embodiment, it also includes: a fastener 7, on which a second threaded hole 220 is provided through and directly opposite to the first threaded hole 33, the fastener 7 is disposed in the first threaded hole 33 and the second threaded hole 220, and the first tooth 22 is connected to the driving member 3 through the fastener 7.

[0042] Furthermore, as a preferred embodiment, it also includes: a positioning screw 8; a positioning hole 35 is provided on the outer wall of the driving member 3; the positioning hole 35 is operably positioned opposite the separation hole 211 or the transmission hole 212; the positioning screw 8 is disposed in the opposite positioning hole 35 and the separation hole 211, or the positioning screw 8 is disposed in the opposite positioning hole 35 and the transmission hole 212. Further, when a clutch function is required or the elastic element needs to be replaced, the positioning hole 35 is opposite to the separation hole 211, and the positioning screw 8 is disposed in the opposite positioning hole 35 and the separation hole 211; when power needs to be transmitted from the driving shaft 1 to the driven shaft 5, the positioning hole 35 is opposite to the transmission hole 212, and the positioning screw 8 is disposed in the opposite positioning hole 35 and the transmission hole 212.

[0043] Furthermore, as a preferred embodiment, it further includes: an active flat key 11 and a passive flat key 51. The active flat key 11 is disposed within the active key shaft hole 210 and is connected to the active shaft 1. The positioning screw 8 abuts against the active flat key 11. The passive flat key 51 is disposed within the passive key shaft hole 41 and is connected to the passive shaft 5. Further, the active flat key 11 is used to achieve circumferential fixation between the active shaft 1 and the gear sleeve 2, ensuring that the torque of the active shaft 1 can be reliably transmitted to the gear sleeve 2. The passive flat key 51 is used to achieve circumferential fixation between the passive component 4 and the passive shaft 5, ensuring that power is reliably transmitted from the passive component 4 to the passive shaft 5.

[0044] The working principle of this utility model is as follows: In use, the power source drives the drive shaft 1 to rotate. The drive shaft 1 drives the tooth sleeve 2 to rotate through the drive key 11. The rotation of the tooth sleeve 2 can drive the drive component 3 to rotate. The drive component 3 drives the passive component 4 to rotate. The passive component 4 drives the passive shaft 5 to rotate through the passive key 51, thereby realizing the transmission of power from the drive shaft 1 to the passive shaft 5. The passive shaft 5 then transmits the power to external equipment. When the flexible coupling needs maintenance, first unscrew the positioning screw 8, then remove the fastener 7. At this time, the toothed sleeve 2 is separated from the driving component 3, which facilitates the inspection, repair or replacement of internal components. After maintenance, reinstall the first tooth 22 of the toothed sleeve 2 into the T-slot 32 of the driving component 3, align the first threaded hole 33 and the second threaded hole 220, and install the fastener 7 to tighten it. Then align the positioning hole 35 with the separation hole 211 or the transmission hole 212, and install the positioning screw 8 to complete the reset work after maintenance. Through the positioning screw 8 and the structure of the first tooth 22, the second tooth 34 and the third tooth 42, the coupling does not need to undergo complicated transmission shaft alignment work again, and the transmission accuracy of the coupling can be guaranteed. When it is necessary to replace the elastic element 6, first remove the fastener 7, then use a special flat chisel to insert into the gap between the inner wall of the second groove of the driving element 3 and the first tooth 22 of the toothed sleeve 2, and loosen the toothed sleeve by hammering. Then move the driving element 3 away from the driven element 4 until the second tooth 34 of the driving element 3 separates from the mounting hole 61 on the elastic element 6. Then install the positioning screw 8 into the separation hole 211 of the toothed sleeve 2 and the positioning hole 35 of the driving element 4. At this time, the driving element 3 and the driven element 4 are separated, and the original elastic element 6 can be removed and replaced with a new elastic element 6. When it is necessary to realize the clutch function, for example, to stop the driving shaft 1 without affecting the operation of the driven shaft 5, the same operation steps as when replacing the elastic element 6 can be followed. Move the driving element 3 to the separation position, and then install the positioning screw 8 into the separation hole 211 of the toothed sleeve 2 and the positioning hole 35 of the driving element 4 to realize the power separation between the driving shaft 1 and the driven shaft 5.

[0045] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A toothed, expansion-type flexible coupling, characterized in that, include: drive shaft; A toothed sleeve, with one end of the drive shaft extending into the toothed sleeve; The active component has one end of the toothed sleeve extending into it and bolted to it. A passive component, which engages with the active component; A passive shaft, one end of which extends into the passive shaft.

2. The toothed expansion type flexible coupling according to claim 1, characterized in that, The toothed sleeve includes: a sleeve body and a plurality of first teeth. A drive key shaft hole is formed through the middle of the sleeve body. One end of the drive shaft extends into the drive key shaft hole. A plurality of first teeth are evenly arranged circumferentially on the outer wall of one end of the sleeve body. A separation hole and a transmission hole are formed on the outer wall of the other end of the sleeve body. The transmission hole is located between the separation hole and the first teeth.

3. The toothed expansion type flexible coupling according to claim 2, characterized in that, The active component has a through hole in its middle, and the other end of the sleeve passes through the through hole and extends out of the active component. A plurality of T-shaped grooves are evenly formed on the outer wall of one end of the active component in the circumferential direction. Each first tooth is set in one of the T-shaped grooves. A first threaded hole is formed through the inner wall of each T-shaped groove. The first threaded hole is set along the axial direction of the active component.

4. The toothed expansion type flexible coupling according to claim 3, characterized in that, Each of the T-slots includes a first slot and a second slot arranged vertically, the first slot and the second slot are connected, each of the first teeth is disposed in a second slot, and the first threaded hole is provided through the inner wall of the second slot.

5. The toothed expansion type flexible coupling according to claim 4, characterized in that, The active component has a plurality of second teeth, and each of the first slots is disposed between two adjacent second teeth.

6. The toothed expansion type flexible coupling according to claim 5, characterized in that, The passive component has a through-hole for a passive key shaft in the middle, one end of the passive shaft extends into the passive key shaft hole, an annular step is provided on the outer wall of the passive component, and a number of third teeth are evenly provided on one end of the passive component in the circumferential direction, and an installation groove is formed between two adjacent third teeth, and each third tooth is provided in a first groove.

7. The toothed expansion type flexible coupling according to claim 6, characterized in that, Also includes: An elastic element is provided in each of the mounting slots. The elastic element has a mounting hole in the middle and an arc-shaped stop at the upper end. The second tooth passes through the mounting hole and abuts against the arc-shaped stop.

8. The toothed expansion type flexible coupling according to claim 3, characterized in that, Also includes: The fastener has a second threaded hole that is directly opposite the first threaded hole on each of the first teeth. The fastener is disposed in the first threaded hole and the second threaded hole, and the first tooth is connected to the driving member through the fastener.

9. The toothed expansion type flexible coupling according to claim 6, characterized in that, Also includes: The positioning screw has a positioning hole on the outer wall of the active component. The positioning hole is operably positioned opposite the separation hole or the transmission hole. The positioning screw is disposed in the positioning hole and the separation hole that are positioned opposite each other, or the positioning screw is disposed in the positioning hole and the transmission hole that are positioned opposite each other.

10. The toothed expansion type flexible coupling according to claim 9, characterized in that, Also includes: An active flat key and a passive flat key are provided. The active flat key is disposed in the active key shaft hole and is connected to the active shaft. The positioning screw abuts against the active flat key. The passive flat key is disposed in the passive key shaft hole and is connected to the passive shaft.

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