Belt wheel motor in interference fit connection

Abstract

The utility model discloses a belt wheel motor in interference fit connection, comprising a motor part which comprises a motor main body, a motor shaft and a motor belt wheel; the motor shaft is fixedly connected to one end of the output end of the motor body, and the motor belt wheel is in interference fit with the outer side of the motor shaft. The interference connection part comprises a bulge and a groove; the protrusions are distributed and connected to the inner wall of the motor belt wheel at equal intervals, and the grooves are distributed and connected between the inner sides of the adjacent protrusions. According to the utility model, a plurality of bulge and groove structures are additionally arranged on the inner wall of the motor belt wheel, and the motor shaft and the motor belt wheel can be connected together in an embedded manner through the arrangement of the bulge and groove structures, so that the motor shaft transmits torque force through a plurality of small keys, and torque is transmitted through shearing materials and interference friction force at the same time; and the transmission reliability is greatly enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a pulley motor with interference fit connection. Background Art

[0002] A pulley motor is defined as a mechanical transmission device that uses a flexible belt tensioned on a pulley for motion or power transmission. It combines the power output of the motor and the transmission method of belt drive, has a simple structure, smooth transmission, and the ability to buffer and absorb vibration.

[0003] The connection between the pulley and the motor shaft of the existing pulley motor is mainly the interference press fit of the hole and the shaft, and the torque is transmitted by the frictional force of the interference pressing force. The interference amount of this design needs to be well controlled. Otherwise, too large an interference amount will cause too large a pressing force, and even the pulley will be cracked. Too small an interference amount will cause the motor shaft to slip with the pulley in extreme cases. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a pulley motor with interference fit connection to solve the problem proposed in the above background art that the connection between the pulley and the motor shaft of the existing pulley motor is mainly the interference press fit of the hole and the shaft, and the torque is transmitted by the frictional force of the interference pressing force. The interference amount of this design needs to be well controlled. Otherwise, too large an interference amount will cause too large a pressing force, and even the pulley will be cracked. Too small an interference amount will cause the motor shaft to slip with the pulley in extreme cases.

[0005] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0006] The utility model is a pulley motor with interference fit connection, including:

[0007] A motor part, the motor part includes a motor main body, a motor shaft, and a motor pulley; the motor shaft is fixedly connected to one end of the output end of the motor main body, and the motor pulley is interference-connected to the outside of the motor shaft;

[0008] An interference connection part, the interference connection part includes a protrusion and a groove; the protrusions are arranged at equal intervals and connected to the inner wall of the motor pulley, and the grooves are distributed and connected between the inner sides of adjacent protrusions.

[0009] Further, a controller is fixedly connected to the central position at the rear end of the motor main body, and threaded holes extending into the motor main body are equidistantly penetrated through one end of the outer surface of the controller.

[0010] Further, it further includes a connection part, and the connection part includes a connection frame and a connection pipe;

[0011] One group of the connection frames is symmetrically arranged and connected to the outer edge of one end of the motor main body, and the connection pipes are equidistantly fixedly connected to the outer edge of the connection frame.

[0012] Further, one of the connecting brackets is fixedly connected to the outer edge of one end of the motor body, and the other connecting bracket is disposed in a fitting manner.

[0013] Further, the connecting pipe is convexly provided in a triangular shape, the outer surface is chamfered, and threads are equidistantly arranged on the inner wall of the connecting pipe.

[0014] Compared with the prior art, the advantages of the present utility model are as follows:

[0015] In the present utility model, a plurality of protrusions and grooves are added to the inner wall of the motor pulley. Through the arrangement of the plurality of protrusions and grooves, the motor shaft and the motor pulley can be connected together by embedding, so that the motor shaft can transmit torque force by a plurality of small keys, and the torque is transmitted by relying on the shear material and the interference friction force at the same time, greatly enhancing the reliability of the transmission. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0017] Figure 1 is the external view of the present utility model;

[0018] Figure 2 is the cross-sectional view of the connection between the motor shaft and the motor pulley of the present utility model;

[0019] Figure 3 is the Figure 2 enlarged view at A in the present utility model.

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] 11. Motor body; 12. Motor shaft; 13. Motor pulley; 14. Controller; 21. Protrusion; 22. Groove; 31. Connecting bracket; 32. Connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the specific embodiments of the present utility model will be described in detail below with reference to the drawings.

[0023] In the following description, many specific details are set forth in order to provide a thorough understanding of the present utility model. However, the present utility model may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer, the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings.

[0025] Please refer to Figures 1-3 As shown, this embodiment is a pulley motor with an interference fit connection, including:

[0026] A motor part, the motor part includes a motor main body 11, a motor shaft 12, and a motor pulley 13; the motor shaft 12 is fixedly connected to one end of the output end of the motor main body 11, and the motor pulley 13 is interference-connected to the outside of the motor shaft 12;

[0027] The motor main body 11 is a source of main power, the motor shaft 12 is used for torque transmission, and the motor pulley 13 receives the transmitted torque and cooperates with a belt to provide the force required for external equipment;

[0028] An interference connection part, the interference connection part includes a protrusion 21 and a groove 22; the protrusions 21 are equidistantly arranged and connected to the inner wall of the motor pulley 13, and the grooves 22 are distributed and connected between the inner sides of adjacent protrusions 21;

[0029] The mutual cooperation between the protrusions 21 and the grooves 22 can meet the transmission of multi-point torque, and at the same time, the interference friction is used to transmit the torque, thereby increasing the reliability of the transmission;

[0030] A controller 14 is fixedly connected to the central position at the rear end of the motor main body 11, and a threaded hole extending into the motor main body 11 is equidistantly formed through one end of the outer surface of the controller 14;

[0031] The controller 14 is used to control the motor main body 11. By inserting a bolt into the threaded hole and tightening it, the structure of the controller 14 can be installed and fixed;

[0032] It further includes a connection part, the connection part includes a connection frame 31 and a connection pipe 32;

[0033] A group of the connection frames 31 are symmetrically arranged and connected to the outer edge of one end of the motor main body 11, and the connection pipes 32 are equidistantly fixedly connected to the outer edge of the connection frames 31;

[0034] One connection frame 31 is fixedly connected to the outer edge of one end of the motor main body 11, and the other connection frame 31 is arranged in a fitting manner;

[0035] The connecting pipe 32 is provided with a triangular convexity on the outside and chamfered on the outer surface, and threads are arranged at equal intervals on the inner wall of the connecting pipe 32;

[0036] The connecting frame 31 is the main installation carrier of the connecting part. By putting bolts into the inside of the connecting pipe 32 and tightening them, the structure of the motor main body 11 can be installed and fixed. The threaded connection method is conducive to the disassembly and assembly of the structure;

[0037] Working principle: One end of the controller 14 is attached to the middle of one end of the motor main body 11, and bolts are put into the threaded holes and tightened to install and fix the controller 14;

[0038] Then, one connecting frame 31 is attached to one end of another connecting frame 31, bolts are put into the inside of the connecting pipe 32 and tightened to install and fix the motor main body 11;

[0039] At this time, one end of the motor shaft 12 is put into the middle of the motor pulley 13, and pressure is applied to install the motor shaft 12 in the middle of the motor pulley 13 by relying on the interference press fit force;

[0040] In this solution, by adding a plurality of convex 21 and groove 22 structures to the inner wall of the motor pulley 13, through the arrangement of the plurality of convex 21 and groove 22 structures, the motor shaft 12 and the motor pulley 13 can be connected together by embedding, and the motor shaft 12 can transmit torque force by multiple small keys, relying on the shear material and interference friction force to transmit torque at the same time, greatly enhancing the reliability of the transmission.

[0041] In the description of the present invention, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0042] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A pulley motor with an interference fit connection, characterized in that: include: A motor part, the motor part comprising a motor body (11), a motor shaft (12), and a motor pulley (13); the motor shaft (12) is fixedly connected to one end of the output end of the motor body (11), and the motor pulley (13) is interference-connected to the outside of the motor shaft (12); An interference fit connection portion, the interference fit connection portion comprising protrusions (21) and grooves (22); the protrusions (21) are equidistantly arranged and connected to the inner wall of the motor pulley (13), and the grooves (22) are distributed and connected between the inner sides of adjacent protrusions (21).

2. The pulley motor with interference fit connection according to claim 1, characterized in that: A controller (14) is fixedly connected to the central position of the rear end of the motor body (11), and threaded holes extending into the motor body (11) are equidistantly penetrated through one end of the outer surface of the controller (14).

3. The pulley motor with interference fit connection according to claim 1, characterized in that: It also includes a connecting portion, the connecting portion including a connecting frame (31) and a connecting pipe (32); A group of the connecting frames (31) are symmetrically arranged and connected to the outer edge of one end of the motor body (11), and the connecting pipes (32) are equidistantly fixedly connected to the outer edge of the connecting frames (31).

4. The pulley motor with interference fit connection according to claim 3, characterized in that: One of the connecting frames (31) is fixedly connected to the outer edge of one end of the motor body (11), and the other of the connecting frames (31) is disposed in close proximity thereto.

5. The pulley motor with interference fit connection according to claim 3, characterized in that: The connecting pipe (32) is triangularly convex, has an outer surface chamfered, and has threads arranged at equal intervals on the inner wall of the connecting pipe (32).

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