Miniature motor coupling

Abstract

The utility model discloses a coupling for a micro motor, and aims to provide a self-aligning coupling for an output shaft of a micro motor, which is simple in structure, can be connected with a 0.65 mm output shaft of the micro motor, can well absorb vibration generated during operation of the micro motor, and can correct the problem of eccentricity at the same time. The coupling comprises a coupling body, a first connecting through hole is formed in the end face of the head of the coupling body and connected with external load equipment, and a second connecting through hole is formed in the end face of the tail of the coupling body and connected with an output shaft of a micro motor. The two sides of the center of the coupler body are each provided with a plurality of energy absorption wire grooves, the energy absorption wire grooves are formed in the two sides of the center of the coupler body in a staggered mode in different directions, and the first connecting through hole penetrates through the energy absorption wire grooves to be connected with the second connecting through hole. The utility model is applied to the technical field of couplings.

Description

Technical Field

[0001] The utility model is applied to the technical field of couplings, and particularly relates to a micro motor coupling. Background Art

[0002] During the production process of motor products, the performance of the motor products needs to be tested after production is completed. The performance of the motor products can be tested by cooperating with the output shaft of the motor products through external load equipment. The connection end of the external load equipment and the output shaft of the motor products need to rotate synchronously through the coupling to transmit motion and power. Sometimes it is also used as a safety device to prevent the connected parts from being subjected to excessive loads, thereby playing a role in overload protection. At present, the main couplings on the market can only connect to the minimum motor output shaft of 2mm. Due to the continuous development of various electronic products, the products are becoming more and more refined, and the motors in the products are also developing in the direction of refinement. For the performance testing of micro motors, couplings that can adapt to smaller motor output shafts are needed. If a micro motor output shaft with a simple structure that can connect a 0.65mm micro motor output shaft, can absorb the vibration generated during the operation of the micro motor, and can correct the eccentricity problem can be designed, the above problems can be solved. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an adjustable coupling for the micro-motor output shaft which has a simple structure, can be connected to a 0.65mm micro-motor output shaft, can well absorb the vibration generated during the operation of the micro-motor, and can correct the eccentricity problem.

[0004] The technical solution adopted by the utility model is: the utility model includes a coupling, a first connecting through hole is arranged on the end face of the coupling head, the first connecting through hole is connected to an external load device, a second connecting through hole is arranged on the end face of the coupling tail, the second connecting through hole is connected to the output shaft of the micro motor, a plurality of energy absorbing grooves are arranged on both sides of the center of the coupling body, the plurality of energy absorbing grooves are arranged on both sides of the center of the coupling body in different directions and staggered with each other, and the first connecting through hole passes through the plurality of energy absorbing grooves and is connected to the second connecting through hole.

[0005] Furthermore, a first locking groove is provided on the end face of the coupling head with the first connecting through hole as the center, and a plurality of first screw locking holes are provided on the arc surface portion of the coupling head. The plurality of first screw locking holes are respectively perpendicular to and penetrate the first locking grooves on both sides of the first connecting through hole, and the first screw locking holes on both sides of the first connecting through hole are in opposite directions.

[0006] Furthermore, a second locking groove is provided on the rear end face of the coupling with the second connecting through hole as the center, and the second locking groove is perpendicular to the direction of the first locking groove. A plurality of second screw locking holes are provided on the arc surface portion of the rear end of the coupling, and the plurality of second screw locking holes are respectively perpendicular to and penetrate the second locking grooves on both sides of the second connecting through hole, and the second screw locking holes on both sides of the second connecting through hole are in opposite directions.

[0007] Furthermore, the second connecting through hole is provided with a contoured stepped groove, and the contoured stepped groove matches with the output shaft of the micro motor.

[0008] Furthermore, the first connecting through hole and the second connecting through hole are respectively provided with a first guiding groove and a second guiding groove, and the first guiding groove and the second guiding groove are respectively matched with the external load device and the micro motor.

[0009] Furthermore, the first locking groove is connected to the energy absorbing groove at the center of the coupling body close to the coupling head, and the second locking groove is connected to the energy absorbing groove at the center of the coupling body close to the coupling tail.

[0010] Furthermore, the first connecting through hole, the first locking groove and the first screw locking holes cooperate with the external load device through a plurality of locking screws, the second connecting through hole can be adapted to a micro motor with an output shaft diameter of 0.65mm-2mm, and the second connecting through hole, the second locking groove and the second screw locking holes cooperate with the micro motor output shaft through a plurality of locking screws.

[0011] The beneficial effects of the utility model are as follows: openings are provided at both ends of the coupling to match one end of the motor and one end of the load; the second connecting through hole can be adapted to a micro motor with a minimum output shaft of 0.65 mm; the first locking groove and the second locking groove are provided at both ends of the coupling respectively, so that the motor output shaft and the load connection end can be smoothly installed and clamped by locking screws after installation, so as to prevent displacement or falling off during the placement test; the coupling is evenly wired with cutting grooves throughout the coupling, which can well absorb the noise and vibration during the operation of the motor and solve the problem of eccentricity; the stepped groove can be adapted to motors of different shapes and has stronger applicability; the first guide groove and the second guide groove can enable the external load device and the micro motor output shaft to smoothly enter the first connecting through hole and the second connecting through hole, so as to prevent the external load device and the micro motor output shaft from being bumped or scratched during the connection process with the coupling. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional view of the utility model;

[0013] Figure 2 It is a stereoscopic view of another viewing angle of the utility model;

[0014] Figure 3 It is the front view of the utility model;

[0015] Figure 4 It is a left view of the utility model;

[0016] Figure 5 It is a right view of the utility model. DETAILED DESCRIPTION

[0017] like Figures 1 to 5 As shown, in this embodiment, the utility model includes a coupling 1, the head end face of the coupling 1 is provided with a first connecting through hole 2, the first connecting through hole 2 is connected to an external load device, the tail end face of the coupling 1 is provided with a second connecting through hole 3, the second connecting through hole 3 is connected to the output shaft of the micro motor, and a plurality of energy absorbing grooves 4 are respectively provided on both sides of the center of the coupling 1 body, and the plurality of energy absorbing grooves 4 are respectively arranged on both sides of the center of the coupling 1 body in different directions and staggered with each other, and the first connecting through hole 2 passes through the plurality of energy absorbing grooves 4 and is connected to the second connecting through hole 3. It can be seen that the second connecting through hole 3 can adapt to a micro motor with a minimum output shaft of 0.65mm while meeting normal test requirements, and realizes the connection between the external load device and the micro motor. During the test, the plurality of energy absorbing grooves can well absorb the noise and vibration in the operation of the motor and solve the problem of non-centering, and the structure is simple and the performance is better.

[0018] like Figures 1 to 5 As shown, in this embodiment, the end face of the head of the coupling 1 is provided with a first locking groove 5 with the first connecting through hole 2 as the center, and the arc surface of the head of the coupling 1 is provided with a plurality of first screw locking holes 6, which are respectively perpendicular to and penetrate the first locking grooves 5 on both sides of the first connecting through hole 2, and the first screw locking holes 6 on both sides of the first connecting through hole 2 are in opposite directions. It can be seen that the locking screw clamps the connection end of the external load device to the first connecting through hole 2 through the first screw locking hole 6 to prevent displacement during rotation, and the two groups of the first screw locking holes 6 in opposite directions can balance gravity during rotation to prevent noise, vibration and non-concentricity.

[0019] like Figures 1 to 5As shown, in this embodiment, the end surface of the rear end of the coupling 1 is provided with a second locking groove 7 with the second connecting through hole 3 as the center, and the second locking groove 7 is perpendicular to the first locking groove 5. The arc surface of the rear end of the coupling 1 is provided with a plurality of second screw locking holes 8, and the plurality of second screw locking holes 8 are respectively perpendicular to and penetrate the second locking grooves 7 on both sides of the second connecting through hole 3, and the second screw locking holes 8 on both sides of the second connecting through hole 3 are in opposite directions. It can be seen that the locking screw clamps the micro motor output shaft and the second connecting through hole 3 through the second screw locking holes 8 to prevent displacement during rotation. The two groups of the second screw locking holes 8 in opposite directions can balance the gravity during rotation to prevent noise, vibration and eccentricity.

[0020] like Figure 1 As shown, in this embodiment, the second connecting through hole 3 is provided with a profiled stepped groove 9, and the profiled stepped groove 9 matches the micro motor. It can be seen that the profiled stepped groove 9 can be adapted to micro motors of different sizes, and has stronger applicability.

[0021] like Figure 1 and Figure 2 As shown, in this embodiment, the first connecting through hole 2 and the second connecting through hole 3 are respectively provided with a first guide groove 10 and a second guide groove 11, and the first guide groove 10 and the second guide groove 11 are respectively matched with the external load device and the output shaft of the micro motor. It can be seen that in the process of the external load device and the output end of the micro motor docking with the first connecting through hole 2 and the second connecting through hole 3 at both ends of the coupling 1, the first guide groove 10 and the second guide groove 11 provide a guiding function to prevent the external load device connection end and the micro motor output end from being bumped or scratched during the process of connecting with the coupling 1.

[0022] like Figures 1 to 3 As shown, in this embodiment, the first locking groove 5 is connected to the energy absorbing groove 4 at the center of the coupling 1 body near the head of the coupling 1, and the second locking groove 7 is connected to the energy absorbing groove 4 at the center of the coupling 1 body near the tail of the coupling 1. It can be seen that a plurality of the first locking grooves 5 and the second locking grooves 7 are respectively connected to the closest energy absorbing groove 4, so that the end of the coupling 1 can clamp the external load device connection end and the micro motor output end.

[0023] like Figures 1 to 5As shown, in this embodiment, the first connecting through hole 2, the first locking groove 5 and the first screw locking holes 6 are matched with the external load device through a plurality of locking screws, the second connecting through hole 3 can be adapted to a micro motor with an output shaft diameter of 0.65mm-2mm, and the second connecting through hole 3, the second locking groove 7 and the second screw locking holes 8 are matched with the output shaft of the micro motor through a plurality of locking screws. It can be seen that the second connecting through hole 3 can be adapted to a micro motor with an output shaft of at least 0.65mm, and the plurality of locking screws can prevent slipping or deviation during the rotation test.

[0024] The working principle of the utility model is as follows: the connection end of the external load device and the output shaft of the micro motor are connected to the first connecting through hole 2 and the second connecting through hole 3 respectively, and the external load device and the micro motor are clamped at both ends of the coupling 1 by the locking screws. The micro motor is energized, and the output end of the micro motor transmits power to the external load device through the coupling 1. The energy-absorbing grooves 4 with several phase balances can absorb the vibration generated by the operation of the motor well during the rotation process, and on the other hand, can also correct the eccentricity problem, so that the accurate test of the micro motor can be achieved through the operating status and test results of the external load device.

[0025] Although the embodiments of the present invention are described with practical solutions, they do not constitute limitations on the meaning of the present invention. For those skilled in the art, it is obvious to modify the implementation scheme and combine it with other solutions based on this description.

Claims

1. A micro motor coupling, comprising a coupling (1), characterized in that: The coupling (1) has a first connecting through hole (2) disposed on a head end surface, the first connecting through hole (2) being connected to an external load device; the coupling (1) has a second connecting through hole (3) disposed on a tail end surface, the second connecting through hole (3) being connected to an output shaft of a micro motor; a plurality of energy absorbing wire grooves (4) are disposed on both sides of the center of a main body of the coupling (1); the plurality of energy absorbing wire grooves (4) are disposed on both sides of the center of the main body of the coupling (1) in a staggered manner in different directions; the first connecting through hole (2) passes through the plurality of energy absorbing wire grooves (4) and is connected to the second connecting through hole (3).

2. A micro motor coupling according to claim 1, characterized in that: The end surface of the coupling (1) head is provided with a first locking groove (5) with the first connecting through hole (2) as the center, and the arc surface portion of the coupling (1) head is provided with a plurality of first screw locking holes (6), and the plurality of first screw locking holes (6) are respectively perpendicular to and penetrate the first locking grooves (5) on both sides of the first connecting through hole (2), and the first screw locking holes (6) on both sides of the first connecting through hole (2) are in opposite directions.

3. A micro motor coupling according to claim 2, characterized in that: The end surface of the rear end of the coupling (1) is provided with a second locking groove (7) with the second connecting through hole (3) as the center, and the second locking groove (7) is perpendicular to the direction of the first locking groove (5). The arc surface portion of the rear end of the coupling (1) is provided with a plurality of second screw locking holes (8), and the plurality of second screw locking holes (8) are respectively perpendicular to and penetrate the second locking grooves (7) on both sides of the second connecting through hole (3), and the second screw locking holes (8) on both sides of the second connecting through hole (3) are in opposite directions.

4. A micro motor coupling according to claim 1, characterized in that: The second connecting through hole (3) is provided with a contoured stepped groove (9), and the contoured stepped groove (9) cooperates with the micro motor.

5. The micro motor coupling according to claim 1, characterized in that: The first connecting through hole (2) and the second connecting through hole (3) are respectively provided with a first guide groove (10) and a second guide groove (11), and the first guide groove (10) and the second guide groove (11) are respectively matched with the external load device and the micro motor output shaft.

6. A micro motor coupling according to claim 3, characterized in that: The first locking groove (5) is connected to the energy absorbing groove (4) at the center of the coupling (1) body close to the head of the coupling (1), and the second locking groove (7) is connected to the energy absorbing groove (4) at the center of the coupling (1) body close to the tail of the coupling (1).

7. A micro motor coupling according to claim 6, characterized in that: The first connecting through hole (2), the first locking groove (5) and the plurality of the first screw locking holes (6) are matched with the external load device via a plurality of locking screws; the second connecting through hole (3) can be adapted to a micro motor with an output shaft diameter of 0.65 mm to 2 mm; the second connecting through hole (3), the second locking groove (7) and the plurality of the second screw locking holes (8) are matched with the output shaft of the micro motor via a plurality of locking screws.

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