Motor anti-loosening structure

Abstract

The utility model discloses a motor anti-loosening structure, which relates to the technical field of coal mining equipment, including a cutting part shell and a coal mining machine motor, the coal mining machine motor is provided with a motor flange, the motor flange and the cutting part shell are detachably connected through a cylindrical pin, the cutting part shell is provided with a protrusion, the protrusion is provided with a protrusion positioning groove, the motor flange is provided with a flange positioning groove, T-blocks are inserted in the protrusion positioning groove and the flange positioning groove, the T-block includes a vertical key and a horizontal block, and a pressure plate is detachably connected to the vertical key and the protrusion of the T-block; compared with the traditional structure that only uses a plurality of cylindrical pins for connection, the utility model has a larger contact area between the vertical key and the cutting part shell and the motor flange, and the coal mining machine motor is less likely to loosen when subjected to an impact load, and can protect the cutting part shell and the cylindrical pin to prevent accidents that cause the coal mining machine to stop.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining equipment, in particular to a motor anti-loosening structure. Background Art

[0002] Coal mining machine is one of the main equipment in the comprehensive mining equipment. It is a large and complex system integrating mechanical, electrical and hydraulic functions. Coal mining machine can effectively reduce physical labor and improve safety, thereby achieving the goals of high output, high efficiency and low consumption.

[0003] The traditional coal mining machine motor is installed on the cutting part housing through cylindrical pins. The contact area between the traditional cylindrical pins and the housing is small. The housing is made of cast steel with low hardness. When subjected to impact load, the cylindrical pins can easily crush the housing, causing the motor to loosen, the bolts to cut off, the motor to fall off and other faults, causing the coal mining machine to shut down and affecting coal mine production. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the utility model provides a motor anti-loosening structure. Compared with the traditional structure that only uses a plurality of cylindrical pins for connection, the contact area between the vertical key and the cutting part housing and the motor flange is larger. When subjected to impact loads, the coal mining machine motor is less likely to loosen, and the cutting part housing and the cylindrical pins can be protected to prevent accidents that cause the coal mining machine to shut down.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a motor anti-loosening structure, including a cutting part housing and a coal mining machine motor, the coal mining machine motor is provided with a motor flange, the motor flange and the cutting part housing are detachably connected by a cylindrical pin, the cutting part housing is provided with a protrusion, the protrusion is provided with a protrusion positioning groove, the motor flange is provided with a flange positioning groove, T-blocks are inserted in the protrusion positioning groove and the flange positioning groove, the T-block includes a vertical key and a horizontal block, and a pressure plate is detachably connected to the vertical key and the protrusion of the T-block.

[0006] Preferably, the pressure plate and the vertical key of the T-block, and the pressure plate and the protrusion are all connected by bolts.

[0007] Preferably, a pair of first threaded holes are provided on the protrusion, a second threaded hole is provided on the vertical key of the T-block, three second positioning holes are provided on the pressure plate, a pair of bolts pass through the second positioning holes on both sides of the pressure plate and are threadedly connected to the pair of first threaded holes, and another bolt passes through the second positioning hole in the middle of the pressure plate and is threadedly connected to the second threaded hole.

[0008] The utility model provides a motor anti-loosening structure, which has the following beneficial effects:

[0009] 1. Compared with the traditional structure that uses only multiple cylindrical pins for connection, the contact area between the vertical key and the cutting part housing and the motor flange is larger. When subjected to impact load, the coal mining machine motor is less likely to loosen, and the cutting part housing and cylindrical pins can be protected to prevent accidents that cause the coal mining machine to stop;

[0010] 2. In the utility model, a pair of bolts pass through the second positioning holes on both sides of the pressure plate and are threadedly connected with a pair of first threaded holes, so that the pressure plate is fixed on the protrusion; another bolt passes through the second positioning hole in the middle of the pressure plate and is threadedly connected with the second threaded hole, so that the pressure plate fixes the vertical key of the T-block to prevent the vertical key from falling off from the protrusion positioning groove and the flange positioning groove when subjected to impact load. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of a motor anti-loosening structure of the utility model;

[0012] Figure 2 The utility model is a motor anti-loosening structure Figure 1 A magnified view of part A;

[0013] Figure 3 This is a cross-sectional view of a pressure plate of a motor anti-loosening structure according to the utility model;

[0014] Figure 4 This is a structural schematic diagram of a T-block of a motor anti-loosening structure of the utility model;

[0015] Figure 5 The utility model is a schematic diagram of the structure of a motor anti-loosening structure pressure plate and a T-block when connected.

[0016] In the figure: 1, cutting part housing; 2, coal mining machine motor; 2-1, motor flange; 2-2, flange positioning groove; 3, T-block; 3-1, vertical key; 3-2, horizontal block; 3-3, second threaded hole; 4, pressure plate; 4-1, second positioning hole; 5, protrusion; 5-1, protrusion positioning groove. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] like Figure 1-5As shown, a motor anti-loosening structure includes a cutting part housing 1 and a coal mining machine motor 2, the coal mining machine motor 2 is provided with a motor flange 2-1, the motor flange 2-1 and the cutting part housing 1 are detachably connected by a cylindrical pin, the cutting part housing 1 is provided with a protrusion 5, the protrusion 5 is provided with a protrusion positioning groove 5-1, the motor flange 2-1 is provided with a flange positioning groove 2-2, a T-block 3 is inserted in the protrusion positioning groove 5-1 and the flange positioning groove 2-2, the T-block 3 includes a vertical key 3-1 and a horizontal block 3-2, the vertical key 3-1 of the T-block 3 -1 and the protrusion 5 are detachably connected with a pressure plate 4; the pressure plate 4 and the vertical key 3-1 of the T-block 3, the pressure plate 4 and the protrusion 5 are all connected by bolts; a pair of first threaded holes are provided on the protrusion 5, a second threaded hole 3-3 is provided on the vertical key 3-1 of the T-block 3, and three second positioning holes 4-1 are provided on the pressure plate 4, a pair of bolts penetrate through the second positioning holes 4-1 on both sides of the pressure plate 4 and are threadedly connected to the pair of first threaded holes, and another bolt penetrates through the second positioning hole 4-1 in the middle of the pressure plate 4 and is threadedly connected to the second threaded hole 3-3.

[0019] The detailed connection means are well-known in the art. The following mainly introduces the working principle and process, which are as follows:

[0020] According to the instruction manual Figure 1-5 It can be known that when the utility model is installed, the motor flange 2-1 on the coal mining machine motor 2 is installed on the cutting part housing 1 through a plurality of cylindrical pins, and the position of the convex block positioning groove 5-1 corresponds to the position of the flange positioning groove 2-2, and the tolerance of the convex block positioning groove 5-1 and the flange positioning groove 2-2 is H7. The vertical key 3-1 of the T-block 3 is inserted into the convex block positioning groove 5-1 and the flange positioning groove 2-2, and the size tolerance of the vertical key 3-1 is h7. Then the pressure plate 4 is detachably installed on the convex block 5 and the T-block 3, and the pressure plate 4 connects and fixes the convex block 5 and the T-block 3; when the cutting part is working, the load on the drum cutting the coal seam is variable, In case of gangue or fault, the impact load will be transmitted to the housing of the coal mining machine motor 2, and then transmitted to the side of the vertical key 3-1 of the T-block 3 through the motor flange 2-1. The vertical key 3-1 is then transmitted to the cutting part housing 1. The pressure plate 4 is connected to the cutting part housing 1 and the T-block 3. The pressure plate 4 can prevent the T-block 3 from jumping out. Compared with the traditional structure that only uses multiple cylindrical pins for connection, the contact area between the vertical key 3-1 and the cutting part housing 1 and the motor flange 2-1 is larger. When subjected to impact load, the coal mining machine motor 2 is less likely to loosen, and the cutting part housing 1 and the cylindrical pins can be protected to prevent accidents that cause the coal mining machine to shut down.

[0021] There is a possibility of implementation, the pressure plate 4 and the vertical key 3-1 of the T-block 3, the pressure plate 4 and the protrusion 5 are connected by bolts, a pair of first threaded holes are opened on the protrusion 5, a second threaded hole 3-3 is opened on the vertical key 3-1 of the T-block 3, and three second positioning holes 4-1 are opened on the pressure plate 4. A pair of bolts penetrate the second positioning holes 4-1 on both sides of the pressure plate 4 and are threadedly connected with the pair of first threaded holes, so that the pressure plate 4 is fixed on the protrusion 5, and another bolt penetrates the second positioning hole 4-1 in the middle of the pressure plate 4 and is threadedly connected with the second threaded hole 3-3, so that the pressure plate 4 fixes the vertical key 3-1 of the T-block 3 to prevent the vertical key 3-1 from falling off from the protrusion positioning groove 5-1 and the flange positioning groove 2-2 when subjected to impact load.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A motor anti-loosening structure, comprising a cutting part housing (1) and a coal mining machine motor (2), wherein the coal mining machine motor (2) is provided with a motor flange (2-1), and the motor flange (2-1) and the cutting part housing (1) are detachably connected via a cylindrical pin, characterized in that: The cutting part housing (1) is provided with a protrusion (5), the protrusion (5) is provided with a protrusion positioning groove (5-1), the motor flange (2-1) is provided with a flange positioning groove (2-2), a T-shaped block (3) is inserted in the protrusion positioning groove (5-1) and the flange positioning groove (2-2), the T-shaped block (3) comprises a vertical key (3-1) and a horizontal block (3-2), and a pressure plate (4) is detachably connected to the vertical key (3-1) of the T-shaped block (3) and the protrusion (5).

2. A motor anti-loosening structure according to claim 1, characterized in that: The pressing plate (4) and the vertical key (3-1) of the T-shaped block (3), as well as the pressing plate (4) and the protrusion (5) are all connected via bolts.

3. A motor anti-loosening structure according to claim 2, characterized in that: A pair of first threaded holes is formed on the protrusion (5), a second threaded hole (3-3) is formed on the vertical key (3-1) of the T-block (3), and three second positioning holes (4-1) are formed on the pressure plate (4). A pair of bolts penetrates through the second positioning holes (4-1) on both sides of the pressure plate (4) and are threadedly connected to the pair of first threaded holes, and another bolt penetrates through the second positioning hole (4-1) in the middle of the pressure plate (4) and is threadedly connected to the second threaded hole (3-3).

Images