Motor driving assembly of grinding machine

Abstract

The utility model relates to the technical field of couplings, in particular to a motor driving assembly of a grinding machine, which comprises a motor output shaft, a motor connecting flange arranged at the top end of the motor output shaft, two first fixing pieces fixedly connected to the lower end of the motor connecting flange, and a grinding block connecting disc arranged below the motor connecting flange. The upper end of the grinding block connecting disc is fixedly connected with a grinding disc connecting disc, the upper end of the grinding disc connecting disc is fixedly connected with a second fixing piece, a coupler is arranged between the first fixing piece and the second fixing piece, and the top end of the first fixing piece and the top end of the second fixing piece are both in threaded connection with bolts. And the first fixing piece and the second fixing piece are still tightly connected with the coupler, so that the situation of connection deviation is avoided, and the stability of power transmission is ensured.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, specifically to a motor drive assembly for a grinding machine. Background Technology

[0002] Electric motors are widely used in our daily production and life, and are indispensable equipment in industrial production. According to the type of power supply, they can be divided into DC motors and AC motors; according to their structure and working principle, they can be divided into DC motors, asynchronous motors, and synchronous motors. When a motor drives other machinery, a coupling is needed to connect it to the motor's output shaft to transmit power. Existing couplings are basically coaxial connections. During grinding, the grinding discs at the bottom of the grinding machine generate a lot of heat due to friction. This heat is conducted to the coupling connection, causing the connecting shaft to expand due to heat. This affects the gap between the motor output shaft and the coupling, impacting installation accuracy and causing abnormal noise and vibration during grinding. Utility Model Content

[0003] The purpose of this invention is to provide a motor drive assembly for a grinding machine to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a motor drive assembly for a grinding machine, including a motor output shaft, a motor connecting flange at the top of the motor output shaft, two first fixing members fixedly connected to the lower end of the motor connecting flange, a grinding block connecting plate below the motor connecting flange, a grinding disc connecting plate fixedly connected to the upper end of the grinding block connecting plate, a second fixing member fixedly connected to the upper end of the grinding disc connecting plate, a coupling between the first fixing member and the second fixing member, bolts threadedly connected to the top ends of both the first fixing member and the second fixing member, and a housing provided on the outer side of the motor output shaft.

[0005] Preferably, the motor connecting flange is a columnar structure with a larger diameter at the top and a smaller diameter at the bottom. A screw is inserted into the middle of the lower end of the motor connecting flange, with both ends of the screw penetrating the motor connecting flange. The upper end of the screw is threadedly connected to the motor output shaft, and the threaded connection direction is opposite to the rotation direction of the motor output shaft.

[0006] Preferably, the coupling consists of two fixing plates arranged opposite to each other, with two through holes in the middle of each fixing plate. The first fixing member and the second fixing member are rectangular in structure, and the first fixing member and the second fixing member are respectively inserted into the two through holes.

[0007] Preferably, the first and second fixing members are arranged in opposite directions, and a gasket is provided between the coupling and the bolt.

[0008] Compared with the prior art, the beneficial effects of this utility model are: by setting two fixing plates to form a coupling, the first fixing piece and the second fixing piece are inserted into both sides of the coupling. When the second fixing piece is heated and expands, it will not affect the connection of the first fixing piece, thereby ensuring the connection accuracy and avoiding the situation of deviation during power transmission, and ensuring that there is no vibration when grinding the ground. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the three-dimensional structure of the motor.

[0010] Figure 2 This is a schematic diagram of the motor power output assembly connection.

[0011] In the diagram: 1 Motor output shaft, 2 Motor connecting flange, 3 Coupling, 4 Grinding disc connecting plate, 5 Grinding block connecting plate, 6 First fixing component, 7 Second fixing component, 8 Housing. Detailed Implementation

[0012] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0013] Please see Figure 1-2 This utility model provides a technical solution: a motor drive assembly for a grinding machine, including a motor output shaft 1, a motor connecting flange 2 at the top of the motor output shaft 1, two first fixing members 6 fixedly connected to the lower end of the motor connecting flange 2, a grinding block connecting plate 5 below the motor connecting flange 2, a grinding disc connecting plate 4 fixedly connected to the upper end of the grinding block connecting plate 5, a second fixing member 7 fixedly connected to the upper end of the grinding disc connecting plate 4, a coupling 3 between the first fixing member 6 and the second fixing member 7, and bolts threadedly connected to the top ends of both the first fixing member 6 and the second fixing member 7, and a housing 8 on the outside of the motor output shaft 1.

[0014] The motor connection flange 2 is a columnar structure with a larger diameter at the top and a smaller diameter at the bottom. A screw is inserted into the middle of the lower end of the motor connection flange 2. Both ends of the screw pass through the motor connection flange 2. The upper end of the screw is threaded to the motor output shaft, and the thread connection direction is opposite to the rotation direction of the motor output shaft 1 to prevent the motor connection flange 2 from loosening during grinding.

[0015] The coupling 3 consists of two fixing plates arranged opposite to each other. Two through holes are provided in the middle of each fixing plate. The first fixing member 6 and the second fixing member 7 are rectangular to prevent the grinding block connecting disc 5 from shifting during rotation. The first fixing member 6 and the second fixing member 7 are respectively inserted into the two through holes. A gasket is provided between the coupling 3 and the bolts to connect the first fixing member 6 and the second fixing member 7 to both sides of the coupling 3 without interfering with each other. When the grinding block connecting disc 5 generates a large amount of heat due to grinding, even if the first fixing member 6 and the second fixing member 7 expand due to heat, they can still be tightly connected to the coupling 3 without any connection shift, ensuring the stability of power transmission.

[0016] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A motor drive assembly for a grinding machine, comprising a motor output shaft (1), characterized in that: The top end of the motor output shaft (1) is provided with a motor connection flange (2). The lower end of the motor connection flange (2) is fixedly connected with two first fixing parts (6). The lower part of the motor connection flange (2) is provided with a grinding block connecting plate (5). The upper end of the grinding block connecting plate (5) is fixedly connected with a grinding disc connecting plate (4). The upper end of the grinding disc connecting plate (4) is fixedly connected with a second fixing part (7). A coupling (3) is provided between the first fixing part (6) and the second fixing part (7). The top ends of the first fixing part (6) and the second fixing part (7) are threaded with bolts. The outer side of the motor output shaft (1) is provided with a housing (8).

2. The motor drive assembly of a grinding machine according to claim 1, characterized in that: The motor connection flange (2) is a columnar structure with a large upper diameter and a small lower diameter. A screw is inserted in the middle of the lower end of the motor connection flange (2). Both ends of the screw pass through the motor connection flange (2). The upper end of the screw is threaded to the motor output shaft, and the threaded connection direction is opposite to the rotation direction of the motor output shaft (1).

3. The motor drive assembly of a grinding machine according to claim 1, characterized in that: The coupling (3) consists of two fixing plates arranged opposite to each other. The fixing plates have two through holes in the middle. The first fixing member (6) and the second fixing member (7) are rectangular structures. The first fixing member (6) and the second fixing member (7) are respectively inserted into the two through holes.

4. The motor drive assembly of a grinding machine according to claim 1, characterized in that: The first fixing member (6) and the second fixing member (7) are arranged opposite to each other, and a gasket is provided between the coupling (3) and the bolt.

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