CN213017369U - High-precision self-locking positioning clutch - Google Patents
High-precision self-locking positioning clutch Download PDFInfo
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- CN213017369U CN213017369U CN202021814807.6U CN202021814807U CN213017369U CN 213017369 U CN213017369 U CN 213017369U CN 202021814807 U CN202021814807 U CN 202021814807U CN 213017369 U CN213017369 U CN 213017369U
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Abstract
The utility model provides a high accuracy self-locking position clutch, including fixing base, output assembly and input assembly, output assembly includes output inner circle and a plurality of locking unit along the setting of output inner circle perisporium, the locking unit includes pretension spring and sets up in two locking rollers at pretension spring both ends along the output inner circle axial direction; the input assembly comprises a plurality of claw parts which are sequentially and alternately arranged with the locking units, the output inner ring is coaxially clamped in the fixed seat, and when the claw parts do not extrude the locking roller, the locking roller clamps the inner wall of the fixed seat under the elastic force action of a pre-tightening spring so as to lock the output assembly. The utility model relates to a high accuracy auto-lock positioning clutch can effectively satisfy the initiative piece can bidirectional drive and can effectively guarantee the beneficial effect of firm auto-lock.
Description
Technical Field
The utility model relates to a clutch technical field particularly, relates to a high accuracy auto-lock location clutch.
Background
The clutch has the functions of non-return, overrunning and positioning, and can be applied to occasions needing synchronization and clutching between a driving part and a driven part in the mechanical field. Such as: the device comprises a speed reducer, a lifting machine, a blower fan and mechanical equipment for spinning, printing, packaging and the like.
However, most clutches in the prior art are one-way clutches, and when some driving parts need to be driven bidirectionally, the existing one-way clutches cannot meet the requirements of the existing one-way clutches, for example, the driving parts are driven forward and backward through a screw rod structure to lift a driven part on a screw rod, and meanwhile, after the screw rod structure loses power, the driven part is required to be ensured not to be driven reversely by gravity to rotate so as to cause damage to a driving motor of the screw rod structure.
In view of the above, the inventor of the present application has invented a high-precision self-locking positioning clutch that can satisfy the requirement that the driving part can be driven bidirectionally and can effectively ensure stable self-locking.
SUMMERY OF THE UTILITY MODEL
The utility model provides a satisfy the driving part can two-way drive and can effectively guarantee the high accuracy auto-lock positioning clutch of firm auto-lock.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a high-precision self-locking position clutch comprises a fixed seat, an output assembly and an input assembly, wherein the output assembly comprises an output inner ring and a plurality of locking units arranged along the peripheral wall of the output inner ring, and each locking unit comprises a pre-tightening spring and two locking rollers arranged at two ends of the pre-tightening spring along the axial direction of the output inner ring; the input assembly comprises a plurality of claw parts which are sequentially and alternately arranged with the locking units, the output inner ring is coaxially clamped in the fixed seat, and when the claw parts do not extrude the locking roller, the locking roller clamps the inner wall of the fixed seat under the elastic force action of a pre-tightening spring so as to lock the output assembly.
As a further improvement, the peripheral wall of the output inner ring is further provided with a plurality of locking surfaces with the same number as the locking units in the axial direction, and the locking units are arranged on the locking surfaces; when the output assembly is locked, the distance from the locking surface at the locking roller to the axis is greater than the distance from the two sides of the locking surface at the locking roller to the axis.
As a further improvement, an auxiliary fixing part is axially arranged on the outer side of the middle part of each locking surface, and at least one spring fixing hole is transversely formed in the auxiliary fixing part and used for fixing the pre-tightening spring.
As a further improvement, each auxiliary fixing part is provided with two spring fixing holes, and the number of the pre-tightening springs of each locking unit is two.
As a further improvement, the number of the locking units is three, and the locking units are uniformly distributed on the periphery side of the output inner ring.
As a further improvement, two side edges of the claw part in the circumferential direction are in an arc shape matched with the locking roller.
As a further improvement, the input assembly further comprises an input shaft and an input inner ring, the finger portion is arranged on one side of the input inner ring, and the input shaft is arranged on the other side of the input inner ring and is connected with an external drive source.
As a further improvement, a first bearing is arranged between the inner wall of the fixed seat and the outer wall of the input inner ring.
As a further improvement, a second bearing is arranged between the inner wall of the fixing seat and the outer wall of the output inner ring, and the outer wall of the output inner ring is further provided with a circle of limiting rings abutted against the side wall of the second bearing.
As a further improvement, the auxiliary fixing part and the locking roller are abutted against the limiting ring.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model relates to a high accuracy auto-lock location clutch wholly adopts output assembly cooperation input assembly's structure can effectively realize pushing the positive and negative rotation of input assembly to output assembly through group claw portion thereby realizing that input assembly is connected so as to drive the waited transfer pole with output assembly, thereby guarantees output assembly through the extrusion of locking roller to the fixing base inner wall under the natural state simultaneously and can not be waited transfer pole reverse rotation and drive the input assembly rotation and damage driving motor.
2. The utility model relates to a locking face among high accuracy auto-lock positioning clutch adopts different height setting can effectively realize the two-way rotation of input module to output assembly, when pusher dog portion clockwise rotation extrudees left locking roller, left locking roller moves right under pressure, and because the distance that locking face on its right side becomes to the axle center diminishes, namely the distance that locking face to fixing base inner wall becomes, make and produce the clearance between left locking roller and the fixing base inner wall, simultaneously, also move to its right side under the effort of the pretension spring of right side locking roller, because the distance that locking face on its right side becomes to the axle center diminishes equally, make and produce the clearance between right side locking roller and the fixing base inner wall, then locking unit clockwise motion under the drive of pusher dog portion this moment; similarly, when the pusher dog part rotates anticlockwise to extrude the right locking roller, the locking unit moves anticlockwise under the driving of the pusher dog part; when the pusher dog part does not provide power to extrude the locking unit, under the bidirectional elasticity of the pre-tightening spring, the locking surface where the locking roller is located is small enough to the inner wall of the fixing seat so as to provide a jacking force outwards to clamp the fixing seat, therefore, the transmission rod to be transmitted connected with the output inner ring cannot drive the output assembly to rotate, the whole structure is ingenious, and the function is easy to operate.
3. The utility model relates to an auxiliary fixing part among high accuracy auto-lock positioning clutch is convenient for stabilize the pretension spring that sets up suitable quantity for seting up the spring fixed orifices on the one hand, and on the other hand auxiliary fixing part also can drive the rotation of output inner circle under the extrusion of locking roller to improve holistic transmission efficiency.
4. The utility model relates to a high accuracy self-lock location clutch is whole can effectively realize can directly driving output assembly rotatory when the input shaft is rotatory, when the input shaft stops, output assembly can automatic locking, guarantee that it can't reverse drive the input shaft rotatory, this structure positioning accuracy is high, but effective application in numerical control equipment's lead screw and motor are connected driven bidirectional drive and are used the scene, also can be used to photovoltaic solar panel towards the positive location usefulness, more available plate bending machine, plate bending machine adjustment locking is used, the usage is very extensive.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is an exploded view of a high precision self-locking positioning clutch according to the present invention;
FIG. 2 is a schematic diagram of an output assembly of the high precision self-locking position clutch according to the present invention;
FIG. 3 is a schematic diagram of the output assembly and the input assembly of the high-precision self-locking detent clutch according to the present invention;
FIG. 4 is a schematic structural view of a display input assembly of the high-precision self-locking positioning clutch of the present invention;
FIG. 5 is a cross-sectional view of the high precision self-locking detent clutch of the present invention taken along a central vertical plane;
fig. 6 is a schematic structural view of a high-precision self-locking position clutch according to the present invention.
Description of the main elements
10. An output component;
11. an output inner ring;
111. a locking surface;
12. a locking unit;
121. pre-tightening the spring;
122. locking the roller;
13. an auxiliary fixing part;
14. a limiting ring;
20. an input component;
21. a claw part;
22. an input shaft;
23. inputting an inner ring;
30. a fixed seat;
40. a first bearing;
50. a second bearing.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 3, in an embodiment, a high-precision self-locking position clutch includes a fixed seat 30, an output assembly 10 and an input assembly 20, where the output assembly 10 includes an output inner ring 11 and a plurality of locking units 12 disposed along a peripheral wall of the output inner ring 11, and the locking units 12 include a pre-tightening spring 121 and two locking rollers 122 disposed at two ends of the pre-tightening spring 121 along an axial direction of the output inner ring 11; the input assembly 20 comprises a plurality of claw portions 21 which are sequentially staggered with the locking unit 12, the output inner ring 11 is coaxially clamped in the fixed seat 30, and when the claw portions 21 do not press the locking roller 122, the locking roller 122 clamps the inner wall of the fixed seat 30 under the elastic force action of the pre-tightening spring 121, so that the output assembly 10 is locked.
Wholly adopt output module 10 cooperation input module 20's structure can effectively realize through dialling claw 21 extrusion locking roller 122 thereby realize input module 20 to output module 10 forward and reverse rotation in order to drive the pole of waiting to be connected with output module 10, thereby guarantee output module 10 can not driven input module 20 rotation and damage driving motor by waiting to move pole reverse rotation through the extrusion of locking roller 122 to fixing base 30 inner wall under the natural state simultaneously.
Referring to fig. 2, the peripheral wall of the output inner ring 11 is further provided with a plurality of locking surfaces 111 in the same number as the locking units 12 along the axial direction, and the locking units 12 are disposed on the locking surfaces 111; when the output assembly 10 is locked, namely the locking roller 122 clamps the inner wall of the fixed seat 30 under the action of the bidirectional elastic force of the pre-tightening spring 121, the distance from the locking surface 111 at the locking roller 122 to the axis is greater than the distance from the two sides of the locking surface 111 at the locking roller 122 to the axis.
Referring to fig. 2 and 3, the locking surfaces 111 are arranged at different heights to effectively realize the bidirectional rotation of the input assembly 20 to the output assembly 10, when the claw portion 21 rotates clockwise to press the left locking roller 122, the left locking roller 122 moves rightwards under pressure, and because the distance from the right locking surface 111 to the axis is reduced, that is, the distance from the locking surface 111 to the inner wall of the fixed seat 30 is increased, a gap is generated between the left locking roller 122 and the inner wall of the fixed seat 30, and meanwhile, the right locking roller 122 also moves rightwards under the action of the pre-tightening spring 121 of the right locking roller 122, and because the distance from the right locking surface 111 to the axis is reduced, a gap is generated between the right locking roller 122 and the inner wall of the fixed seat 30, at this time, the locking unit 12 moves clockwise under the driving of the claw portion 21; similarly, when the claw part 21 rotates counterclockwise to press the right locking roller 122, the locking unit 12 moves counterclockwise under the driving of the claw part 21; when the pawl part 21 does not provide power to extrude the locking unit 12, under the bidirectional elastic force of the pre-tightening spring 121, the locking surface 111 where the locking roller 122 is located is small enough to the inner wall of the fixed seat 30 to provide a pushing force outwards to clamp the fixed seat 30, so that the to-be-transmitted rod connected with the output inner ring 11 cannot drive the output assembly 10 to rotate, the whole structure is ingenious, and the function is easy to implement.
Referring to fig. 2, an auxiliary fixing portion 13 is axially disposed at an outward side of a middle portion of each locking surface 111, and the auxiliary fixing portion 13 is transversely provided with at least one spring fixing hole for fixing the pre-tightening spring 121; each of the auxiliary fixing portions 13 is formed with two spring fixing holes, and the number of the pre-tightening springs 121 of each locking unit 12 is two.
The auxiliary fixing portion 13 provides a carrier for the spring fixing hole to stably set a proper number of pre-tightening springs 121, and the auxiliary fixing portion 13 can drive the output inner ring 11 to rotate under the extrusion of the locking roller 122, so that the overall transmission efficiency is improved.
Referring to fig. 2, the number of the locking units 12 is three, and the locking units 12 are uniformly distributed around the output inner ring 11, and a stable triangular array can be effectively formed by adopting the structure of the three locking units 12, so that the fixing base 30 can be stably clamped in a state that the pawl portion 21 does not press the locking roller 122.
Referring to fig. 3, two sides of the claw portion 21 in the circumferential direction are arc-shaped to fit the locking roller 122, and the claw portion 21 and the locking roller 122 have a larger contact area to push the locking unit 12 more easily due to the structural arrangement.
In addition, referring to fig. 4 and 5, the input assembly 20 further includes an input shaft 22 and an input inner ring 23, the claw portion 21 is disposed on one side of the input inner ring 23, and the input shaft 22 is disposed on the other side of the input inner ring 23 and connected to an external driving source. A first bearing 40 is arranged between the inner wall of the fixed seat 30 and the outer wall of the input inner ring 23 to ensure the stable transmission of the input inner ring 23 in the fixed seat 30.
Referring to fig. 5, a second bearing 50 is disposed between the inner wall of the fixing seat 30 and the outer wall of the output inner ring 11 for ensuring stable transmission of the output inner ring 11 in the fixing seat 30, a circle of limiting ring 14 abutting against the side wall of the second bearing 50 is further disposed on the outer wall of the output inner ring 11, and the auxiliary fixing portion 13 and the locking roller 122 abut against the limiting ring 14. The spacing ring 14 is used to assist in positioning the locking roller 122, and is engaged with the second bearing 50 to ensure that the output assembly 10 is disposed in the fixing seat 30 in a spacing manner.
To sum up, please refer to fig. 6, the utility model relates to a high accuracy self-locking position clutch can directly drive output assembly 10 rotatory when input shaft 22 is rotatory, when input shaft 22 stops, output assembly 10 can automatic locking, guarantee that it can't reverse drive input shaft 22 rotatory, this structure positioning accuracy is high, but effective application is in numerical control equipment's lead screw and motor connection driven bidirectional drive application scene, also can be used to photovoltaic solar panel and face the positive location usefulness, more available plate bending machine, plate bending machine adjustment locking usefulness, the usage is very extensive.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A high precision self-locking detent clutch characterized by: the device comprises a fixed seat (30), an output assembly (10) and an input assembly (20), wherein the output assembly (10) comprises an output inner ring (11) and a plurality of locking units (12) arranged along the peripheral wall of the output inner ring (11), and each locking unit (12) comprises a pre-tightening spring (121) and two locking rollers (122) arranged at two ends of the pre-tightening spring (121) along the axial direction of the output inner ring (11); the input assembly (20) comprises a plurality of claw parts (21) which are sequentially arranged in a staggered mode with the locking units (12), the output inner ring (11) is coaxially clamped in the fixed seat (30), and when the claw parts (21) do not extrude the locking roller (122), the locking roller (122) tightly clamps the inner wall of the fixed seat (30) under the elastic force action of a pre-tightening spring (121) so as to lock the output assembly (10).
2. The high precision self-locking bit clutch of claim 1, wherein: the peripheral wall of the output inner ring (11) is further provided with a plurality of locking surfaces (111) which are the same as the locking units (12) in number along the axial direction, and the locking units (12) are arranged on the locking surfaces (111); when the output assembly (10) is locked, the distance from the locking surface (111) at the locking roller (122) to the axis is greater than the distance from the two sides of the locking surface (111) at the locking roller (122) to the axis.
3. The high precision self-locking bit clutch of claim 2, wherein: each locking surface (111) is provided with an auxiliary fixing part (13) in the axial direction towards the outside in the middle, and the auxiliary fixing part (13) is transversely provided with at least one spring fixing hole for fixing the pre-tightening spring (121).
4. The high precision self-locking bit clutch of claim 3, wherein: two spring fixing holes are formed in each auxiliary fixing part (13), and the number of pre-tightening springs (121) of each locking unit (12) is two.
5. The high precision self-locking bit clutch according to any of claims 1 to 4, wherein: the number of the locking units (12) is three, and the locking units are uniformly distributed on the peripheral side of the output inner ring (11).
6. The high precision self-locking bit clutch of claim 5, wherein: two side edges of the claw part (21) in the circumferential direction are arc-shaped and matched with the locking roller (122).
7. The high precision self-locking bit clutch of claim 6, wherein: the input assembly (20) further comprises an input shaft (22) and an input inner ring (23), the claw part (21) is arranged on one side of the input inner ring (23), and the input shaft (22) is arranged on the other side of the input inner ring (23) and is connected with an external drive source.
8. The high precision self-locking bit clutch of claim 7, wherein: a first bearing (40) is arranged between the inner wall of the fixed seat (30) and the outer wall of the input inner ring (23).
9. The high precision self-locking bit clutch of claim 4, wherein: a second bearing (50) is arranged between the inner wall of the fixed seat (30) and the outer wall of the output inner ring (11), and the outer wall of the output inner ring (11) is further provided with a circle of limiting rings (14) which are abutted against the side wall of the second bearing (50).
10. The high precision self-locking bit clutch of claim 9, wherein: the auxiliary fixing part (13) and the locking roller (122) are abutted against the limiting ring (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021814807.6U CN213017369U (en) | 2020-08-27 | 2020-08-27 | High-precision self-locking positioning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021814807.6U CN213017369U (en) | 2020-08-27 | 2020-08-27 | High-precision self-locking positioning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213017369U true CN213017369U (en) | 2021-04-20 |
Family
ID=75471947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021814807.6U Active CN213017369U (en) | 2020-08-27 | 2020-08-27 | High-precision self-locking positioning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213017369U (en) |
-
2020
- 2020-08-27 CN CN202021814807.6U patent/CN213017369U/en active Active
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