Servo motor output shaft connecting piece

Abstract

The utility model relates to the technical field of servo motors, in particular to a servo motor output shaft connecting piece which comprises a first connecting sleeve, a second connecting sleeve and a cross-shaped polyurethane cushion block, and the cross-shaped polyurethane cushion block is arranged between the first connecting sleeve and the second connecting sleeve. By means of the assembly composed of the first connecting sleeve, the second connecting sleeve, the cross-shaped polyurethane cushion block and the screw rod, a set of connecting piece with flexible connection and rigid connection simultaneously is provided for connection of the output shaft of the servo motor, so that different connection requirements of the output end of the servo motor and an input shaft of external equipment are met; different connection requirements possibly existing between the output end of the servo motor and the input shaft of the external equipment are fully considered, and the rigid and flexible connection states between the first connecting sleeve and the second connecting sleeve are adjusted by adjusting the screwing depth of the screw rod between the first connecting sleeve and the second connecting sleeve. The device can adapt to various loads and working conditions, and the use flexibility and the application range are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, in particular to an output shaft connecting piece of a servo motor. Background Art

[0002] When a servo motor transmits driving force to a load device, it requires the cooperation of a connector. The connector commonly used is a coupling, the purpose of which is to achieve power transmission, connect the motor and the load device, transmit power and torque, ensure synchronous rotation of the two, and ensure a stable and efficient connection between the motor and the load.

[0003] When selecting and using the existing connectors for the output shaft of a servo motor and the input shaft of an external device, only a flexible coupling or a rigid coupling can be selected. When faced with different connection methods, different couplings need to be purchased separately, resulting in high cost of use, high complexity of disassembly and replacement, and a small scope of application. Therefore, a servo motor output shaft connector is proposed. Utility Model Content

[0004] In response to the problems in the prior art, the utility model provides a servo motor output shaft connector to provide a set of connectors with both flexible and rigid connections for the connection of the servo motor output shaft, so as to meet the different connection requirements between the servo motor output end and the input shaft of the external device, and fully consider the different connection requirements that may exist between the servo motor output end and the input shaft of the external device. By adjusting the screw insertion depth between the first connecting sleeve and the second connecting sleeve, the rigid and flexible connection states between the first connecting sleeve and the second connecting sleeve can be adjusted, which can adapt to a variety of loads and working conditions, greatly increasing the flexibility and applicability of use.

[0005] The technical solution adopted by the utility model to solve its technical problems is a servo motor output shaft connecting piece, comprising a first connecting sleeve, a second connecting sleeve and a cross-shaped polyurethane pad, wherein the cross-shaped polyurethane pad is arranged between the first connecting sleeve and the second connecting sleeve, a screw for rigid connection is arranged between the first connecting sleeve and the second connecting sleeve, and a through hole is opened on the cross-shaped polyurethane pad for the rigidly connected screw to pass through.

[0006] By adopting the above technical solution, through the assembly consisting of the first connecting sleeve, the second connecting sleeve, the cross-shaped polyurethane pad and the screw, a set of connectors with both flexible and rigid connections is provided for the connection of the servo motor output shaft to meet the different connection requirements between the servo motor output end and the input shaft of the external device. The different connection requirements that may exist between the servo motor output end and the input shaft of the external device are fully considered. By adjusting the screwing depth of the screw between the first connecting sleeve and the second connecting sleeve, the rigid and flexible connection states between the first connecting sleeve and the second connecting sleeve can be adjusted. It can adapt to a variety of loads and working conditions, greatly increasing the flexibility and applicability of use.

[0007] Specifically, a first threaded hole for inserting a screw thread is provided on one side of the first connecting sleeve, and a second threaded hole for inserting a screw thread is provided on the other side of the second connecting sleeve. Non-through threaded connection holes are provided on one side of the first connecting sleeve and the second connecting sleeve close to the cross-shaped polyurethane pad, and the threaded connection holes are symmetrically arranged with the corresponding first threaded holes and second threaded holes.

[0008] By adopting the above technical solution, the first threaded hole, the second threaded hole and the threaded connecting hole are set, which can be used for threaded installation of the screw. When a flexible connection needs to be maintained, the screw can be received in the first threaded hole and the second threaded hole respectively. When a rigid connection is required, one end of the screw can be threaded out from the first threaded hole and the second threaded hole, so that the screw passes through the through hole and is threadedly connected to the corresponding threaded connecting hole, so that a rigid connection is formed between the first connecting sleeve and the second connecting sleeve.

[0009] Specifically, one end of the screw is provided with a hexagonal hole.

[0010] By adopting the above technical solution and providing the inner hexagonal hole, a person can rotate the screw by inserting a hexagonal wrench into the inner hexagonal hole.

[0011] Specifically, a protrusion for engaging with the cross-shaped polyurethane pad is provided on one side of the first connecting sleeve and the second connecting sleeve close to the cross-shaped polyurethane pad.

[0012] By adopting the above technical solution and setting the protrusion, the first connecting sleeve and the second connecting sleeve can achieve a bite effect after being covered with the cross-shaped polyurethane pad, and the cross-shaped polyurethane pad can make the first connecting sleeve and the second connecting sleeve have a certain elastic deformation effect.

[0013] Specifically, expansion joints are provided on both the first connecting sleeve and the second connecting sleeve, and mounting holes corresponding to the expansion joints are provided on the outer circumferences of the first connecting sleeve and the second connecting sleeve.

[0014] The beneficial effects of the present invention are as follows: through the assembly consisting of the first connecting sleeve, the second connecting sleeve, the cross-shaped polyurethane pad and the screw, a set of connectors with both flexible and rigid connections is provided for the connection of the servo motor output shaft to meet the different connection requirements between the servo motor output end and the external device input shaft, and full consideration is given to the different connection requirements that may exist between the servo motor output end and the external device input shaft. By adjusting the screwing depth of the screw between the first connecting sleeve and the second connecting sleeve, the rigid and flexible connection states between the first connecting sleeve and the second connecting sleeve can be adjusted, which can adapt to a variety of loads and working conditions, greatly increasing the flexibility and scope of application, and having high practicality. It solves the problem that when selecting and using the existing connectors between the servo motor output shaft and the external device input shaft, only a flexible coupling or a rigid coupling can be selected. When facing different connection methods, different couplings need to be purchased separately, resulting in high use costs, high complexity of disassembly and replacement, and a small scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the back of the utility model;

[0018] Figure 3 This is an explosion diagram of the utility model;

[0019] Figure 4 This is a schematic diagram of the first connecting sleeve, the second connecting sleeve and the cross-shaped polyurethane pad of the utility model;

[0020] Figure 5 Schematic diagram of the screw of the present utility model;

[0021] In the figure: first connecting sleeve 1, first threaded hole 11, second connecting sleeve 2, second threaded hole 21, cross-shaped polyurethane pad 3, through hole 31, screw 4, hexagonal hole 41, threaded connecting hole 5, expansion joint 6, protrusion 7, mounting hole 8. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figure 1-5As shown, the servo motor output shaft connector described in the utility model includes a first connecting sleeve 1, a second connecting sleeve 2 and a cross-shaped polyurethane pad 3, the cross-shaped polyurethane pad 3 is arranged between the first connecting sleeve 1 and the second connecting sleeve 2, and a screw 4 for rigid connection is provided between the first connecting sleeve 1 and the second connecting sleeve 2, and a through hole 31 is opened on the cross-shaped polyurethane pad 3 for the rigidly connected screw 4 to pass through.

[0024] When in use, the first connecting sleeve 1, the second connecting sleeve 2, the cross-shaped polyurethane pad 3 and the screw 4 provide a set of connectors with both flexible and rigid connections for the connection of the servo motor output shaft to meet the different connection requirements between the servo motor output end and the input shaft of the external device. The different connection requirements that may exist between the servo motor output end and the input shaft of the external device are fully considered. By adjusting the screwing depth of the screw 4 between the first connecting sleeve 1 and the second connecting sleeve 2, the rigid and flexible connection states between the first connecting sleeve 1 and the second connecting sleeve 2 can be adjusted. It can adapt to a variety of loads and working conditions, greatly increasing the flexibility and applicability of use.

[0025] The utility model also includes that a first threaded hole 11 for threaded insertion of the screw 4 is penetrated on one side of the first connecting sleeve 1, and a second threaded hole 21 for threaded insertion of the screw 4 is penetrated on the other side of the second connecting sleeve 2. The first connecting sleeve 1 and the second connecting sleeve 2 are provided with a non-penetrating threaded connection hole 5 on one side close to the cross-shaped polyurethane pad 3, and the threaded connection hole 5 is symmetrically arranged with the corresponding first threaded hole 11 and second threaded hole 21.

[0026] During use, based on the setting of the first threaded hole 11, the second threaded hole 21 and the threaded connecting hole 5, the screw 4 can be threadedly installed. When a flexible connection needs to be maintained, the screw 4 can be respectively received in the first threaded hole 11 and the second threaded hole 21. When a rigid connection is required, one end of the screw 4 can be threaded out from the first threaded hole 11 and the second threaded hole 21, so that the screw 4 passes through the through hole 31 and is threadedly connected to the corresponding threaded connecting hole 5, so that a rigid connection is formed between the first connecting sleeve 1 and the second connecting sleeve 2.

[0027] The present invention also includes that one end of the screw rod 4 is provided with a hexagonal hole 41 .

[0028] When in use, a person inserts a hexagonal wrench into the inner hexagonal hole 41 to rotate the screw rod 4 .

[0029] The present invention also includes that a protrusion 7 for engaging with the cross-shaped polyurethane pad 3 is provided on one side of the first connecting sleeve 1 and the second connecting sleeve 2 close to the cross-shaped polyurethane pad 3 .

[0030] When in use, after the first connecting sleeve 1 and the second connecting sleeve 2 are covered with the cross-shaped polyurethane pad 3, a bite effect is achieved, and the cross-shaped polyurethane pad 3 can enable a certain elastic deformation effect between the first connecting sleeve 1 and the second connecting sleeve 2.

[0031] The present invention also includes that expansion joints 6 are provided on both the first connecting sleeve 1 and the second connecting sleeve 2 , and mounting holes 8 corresponding to the expansion joints 6 are provided on the outer peripheries of the first connecting sleeve 1 and the second connecting sleeve 2 .

[0032] When the present invention is in use, the first connecting sleeve 1 and the second connecting sleeve 2 are respectively sleeved on the output shaft of the servo motor and the input shaft of the load device, bolts are taken to pass through the mounting holes 8, and the other ends of the bolts are tightened by nuts, so that the first connecting sleeve 1 and the second connecting sleeve 2 are respectively fixedly connected to the output shaft of the servo motor and the input shaft of the load device. During this period, based on the material properties of the cross-shaped polyurethane pad 3, the cross-shaped polyurethane pad 3 can produce a certain deformation, which can absorb and buffer the slight deviation and vibration between the output shaft of the servo motor and the input shaft of the load device to a certain extent, forming a flexible connection. When the load device needs to maintain a certain transmission precision, a hexagonal wrench is inserted into the hexagonal hole 41, and the screw 4 is rotated so that the tail ends of the screw 4 pass through the through-holes 31 and are threadedly connected to the threaded connection holes 5 at the corresponding positions, so that a rigid connection is achieved between the first connecting sleeve 1 and the second connecting sleeve 2. The operation is simple and the use is flexible and convenient, so that the servo motor can adapt to a variety of loads and working conditions.

[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. A servo motor output shaft connector, characterized in that: The invention comprises a first connecting sleeve (1), a second connecting sleeve (2) and a cross-shaped polyurethane pad (3), wherein the cross-shaped polyurethane pad (3) is arranged between the first connecting sleeve (1) and the second connecting sleeve (2), a screw rod (4) for rigid connection is arranged between the first connecting sleeve (1) and the second connecting sleeve (2), and a through hole (31) for the screw rod (4) for rigid connection is provided on the cross-shaped polyurethane pad (3).

2. A servo motor output shaft connector according to claim 1, characterized in that: A first threaded hole (11) for threaded insertion of a screw rod (4) is provided through one side of the first connecting sleeve (1), and a second threaded hole (21) for threaded insertion of a screw rod (4) is provided through the other side of the second connecting sleeve (2). A non-through threaded connecting hole (5) is provided on one side of the first connecting sleeve (1) and the second connecting sleeve (2) close to the cross-shaped polyurethane pad (3), and the threaded connecting hole (5) is symmetrically arranged with the corresponding first threaded hole (11) and second threaded hole (21).

3. A servo motor output shaft connector according to claim 2, characterized in that: One end of the screw rod (4) is provided with a hexagonal hole (41).

4. A servo motor output shaft connector according to claim 3, characterized in that: A protrusion (7) for engaging with the cross-shaped polyurethane pad (3) is provided on one side of the first connecting sleeve (1) and the second connecting sleeve (2) close to the cross-shaped polyurethane pad (3).

5. The servo motor output shaft connecting piece according to claim 4, characterized in that: The first connecting sleeve (1) and the second connecting sleeve (2) are both provided with expansion joints (6), and the outer peripheries of the first connecting sleeve (1) and the second connecting sleeve (2) are provided with mounting holes (8) corresponding to the expansion joints (6).

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