Motor drive connection structure

Abstract

The utility model discloses a motor drive connection structure which comprises an annular clamp spring groove and a clamp spring which are arranged on an output rotating shaft of a motor, an opening in the clamp spring is a splayed opening with a wide outside and a narrow inside, the splayed opening faces the clamp spring groove, the clamp spring is pushed forcibly to enable the wide outside end of the splayed opening to be opened towards two sides along the inner surface of the clamp spring groove, and the motor is driven to rotate. The snap spring does not need to be opened by a pair of snap spring pliers. A protruding clamping piece is arranged on the inner wall of the clamping spring, a clamping groove corresponding to the clamping piece is formed in the annular clamping spring groove, the clamping groove is an arc-shaped groove formed in the circumferential direction of the annular clamping spring groove, and the clamping groove comprises an access groove with the width larger than the thickness of the clamping piece and a clamping groove with the width tightly matched with the clamping piece. And a port, adjacent to the clamping groove, of the access groove is a conical guide port. When the clamping spring is installed in the clamping spring groove, the clamping piece is inserted from the access groove, then the clamping spring is rotated, the clamping piece is rotated into the clamping groove to be clamped, the clamping spring is fixed, the structure is stable, assembling operation is easy and convenient, and the assembling efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the field of motors, and in particular to a motor drive connection structure. Background Art

[0002] The motor is an indispensable driving component for various machine tools, mechanical equipment and production lines. Its main function is to convert electrical energy into mechanical energy to drive various devices. Small driven parts are generally connected to the output shaft of the motor through a circlip, which is clamped in the circlip groove of the motor's output shaft, so that the motor drives the driven parts to rotate. When putting the circlip into the circlip groove, employees usually use circlip pliers to open the circlip by hand, and then put it into the circlip groove. This method is not only inefficient, but also has a high manual workload when employees operate it for a long time. Utility Model Content

[0003] The main purpose of the utility model is to provide a motor drive connection structure, aiming to improve assembly efficiency.

[0004] The utility model proposes a motor drive connection structure, which is used for connecting the output shaft of the motor with a driven part, comprising an annular retaining spring groove arranged on the output shaft of the motor and a retaining spring adapted to the annular retaining spring groove, the opening on the retaining spring is an eight-shaped opening which is wide on the outside and narrow on the inside, the inner wall of the retaining spring is provided with a protruding retaining piece, the annular retaining spring groove is provided with a retaining groove corresponding to the retaining piece, the retaining groove is an arc groove arranged along the circumference of the annular retaining spring groove, the retaining groove comprises an access groove whose width is larger than the thickness of the retaining piece and a clamping groove whose width is tightly matched with the retaining piece, the port of the access groove adjacent to the clamping groove is a conical guide port, the retaining piece is inserted from the access groove, and rotated to be clamped in the clamping groove.

[0005] Preferably, the inner corners and outer corners on both sides of the eight-shaped opening are rounded.

[0006] Preferably, the inner wall surface of the clamping groove is provided with tooth patterns that contact the end surface of the clamping piece.

[0007] Preferably, the engaging piece is provided with a limiting convex strip which can engage with the tooth pattern.

[0008] The beneficial effects of the motor drive connection structure of the utility model are:

[0009] The motor drive connection structure of the utility model is used for connecting the output shaft of the motor with the driven component. The motor drive connection structure includes an annular retaining spring groove arranged on the output shaft of the motor and a retaining spring adapted to the annular retaining spring groove. The opening on the retaining spring is an eight-shaped opening which is wide outside and narrow inside. The eight-shaped opening is facing the retaining spring groove of the output shaft. The retaining spring is pushed with force so that the outer wide end of the eight-shaped opening is stretched to both sides along the inner surface of the retaining spring groove until it is inserted into the retaining spring groove. There is no need to use retaining spring pliers to stretch the retaining spring.

[0010] The inner wall of the clamping spring is provided with a raised clamping piece, and the annular clamping spring groove is provided with a clamping groove corresponding to the clamping piece. The clamping groove is an arc groove arranged along the circumference of the annular clamping spring groove. The clamping groove includes an access groove whose width is larger than the thickness of the clamping piece and a clamping groove whose width is closely matched with the clamping piece. The port of the access groove adjacent to the clamping groove is a conical guide port. When the clamping spring is installed in the clamping spring groove, the clamping piece is inserted from the access groove, and then the clamping spring is rotated to rotate the clamping piece into the clamping groove, clamping the clamping piece, so that the clamping spring is fixed, the structure is stable, the assembly operation is simple, and the assembly efficiency can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the connection between the motor and the driven component in an embodiment of the utility model.

[0012] Figure 2 It is a schematic structural diagram of a retaining spring according to an embodiment of the utility model.

[0013] Figure 3 It is a structural schematic diagram of the annular retaining ring groove on the output shaft of an embodiment of the utility model.

[0014] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0015] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0016] Reference Figures 1 to 3 , an embodiment of the motor drive connection structure of the utility model is proposed:

[0017] A motor drive connection structure is used for connecting the output shaft 1 of the motor with a driven part 3, including an annular retaining ring groove 10 arranged on the output shaft 1 of the motor and a retaining ring 2 adapted to the annular retaining ring groove 10. When connecting, the driven part 3 is sleeved on the output shaft 1, and then the retaining ring 2 is installed in the annular retaining ring groove 10. The retaining ring 2 is pressed against the end face of the driven part 3, so that the driven part 3 is fixed on the output shaft 1.

[0018] The opening on the retaining spring 2 is an eight-shaped opening 21 which is wide outside and narrow inside. The eight-shaped opening 21 is placed opposite the retaining spring groove 10 of the output shaft 1. The retaining spring 2 is pushed forcefully so that the outer wide end of the eight-shaped opening 21 is stretched to both sides along the inner surface of the retaining spring groove 10 until it is inserted into the retaining spring groove 10. There is no need to use retaining spring pliers to stretch the retaining spring.

[0019] Furthermore, the inner corners and the outer corners on both sides of the eight-shaped opening 21 are rounded, which is more conducive to the installation of the retaining spring 2.

[0020] A protruding clamping piece 22 is provided on the inner wall of the clamping spring 2, and a clamping groove 11 corresponding to the clamping piece 22 is provided in the annular clamping spring groove 10. The clamping groove 11 is an arc groove arranged along the circumference of the annular clamping spring groove 10, and the clamping groove 11 includes an access groove 12 whose width is larger than the thickness of the clamping piece 22 and a clamping groove 13 whose width is closely matched with the clamping piece 22. The port of the access groove 12 adjacent to the clamping groove 13 is a tapered guide port 14. When the clamping spring 2 is installed in the clamping spring groove 10, the clamping piece 22 is inserted into the access groove 12, and then the clamping spring 2 is rotated so that the clamping piece 22 is rotated from the tapered guide port 14 to the clamping groove 13, and the clamping piece 22 is clamped, so that the clamping spring 2 is fixed, the structure is stable, the assembly operation is simple, and the assembly efficiency can be improved.

[0021] Furthermore, the inner wall surface of the clamping groove 13 is provided with a tooth pattern 15 that contacts the end surface of the clamping piece 22 , and the tooth pattern 15 is used to increase the friction force between the clamping piece 22 and the clamping piece 22 to further clamp it.

[0022] Furthermore, a limiting convex strip 23 that can mesh with the tooth pattern 15 can be provided on the clamping piece 22, and the limiting convex strip 23 slides into the tooth pattern 15, so that the clamping connection between them is more firm.

[0023] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.

Claims

1. A motor drive connection structure, used for connecting the output shaft of the motor with a driven member, comprising an annular retaining spring groove arranged on the output shaft of the motor and a retaining spring adapted to the annular retaining spring groove, characterized in that: The opening on the retaining spring is an eight-shaped opening which is wide on the outside and narrow on the inside. A raised clamping piece is provided on the inner wall of the retaining spring. A clamping groove corresponding to the clamping piece is provided in the annular retaining spring groove. The clamping groove is an arc groove arranged along the circumference of the annular retaining spring groove. The clamping groove includes an access groove whose width is larger than the thickness of the clamping piece and a clamping groove whose width is tightly matched with the clamping piece. The port of the access groove adjacent to the clamping groove is a conical guide port. The clamping piece is inserted from the access groove and rotated into the clamping groove to clamp.

2. The motor drive connection structure according to claim 1, characterized in that: The inner corners and outer corners on both sides of the eight-shaped opening are rounded.

3. The motor drive connection structure according to claim 1 or 2, characterized in that: The inner wall surface of the clamping groove is provided with tooth patterns that contact the end surface of the clamping piece.

4. The motor drive connection structure according to claim 3, characterized in that: The clamping piece is provided with a limiting convex strip which can mesh with the tooth pattern.

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