High-sealing end cover of motor

Abstract

The utility model discloses a motor high-sealing end cover, which comprises an end cover main body, the side surface of the end cover main body is fixedly connected with an insertion frame, the surface of the insertion frame is fixedly sleeved with a first sealing frame, the side surface of the end cover main body is movably sleeved with an outer side frame, and the inner wall of the outer side frame is fixedly connected with a second sealing frame. Through mutual cooperation of the end cover main body, the insertion frame, the first sealing frame, the outer side frame, the second sealing frame, the first through hole block, the sliding groove, the sliding block, the track, the threaded opening, the positioning plate, the bolt, the shell, the second through hole block and the matching groove, in the using process, firstly, a primary sealing structure is formed between the end cover main body and the shell through the insertion frame, the first sealing frame and the matching groove; and the outer side frame and the sealing frame II form a secondary sealing mechanism, so that a repeated sealing mechanism is formed to seal a gap between the end cover main body and the shell, the sealing performance is greatly improved, dust and the like are prevented from entering the shell, and the service life of the motor is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of motor end cover technology, specifically a high-sealing end cover for motors. Background Technology

[0002] Motor end covers are motor assembly components that are installed on the front end of the motor housing to protect the rotor and stator inside the motor housing. They are widely used in the field of motors. Currently, most existing motor end covers are assembled with the housing using a compression sealing process. This method has relatively low sealing performance, and dust can easily enter the housing through the gap between the end cover and the housing, which can easily affect the service life of the motor.

[0003] A search revealed an end cover for an electric motor with application number CN201220174183.5. This end cover has an end cover body with a connecting hole for connecting the motor at its center. The end cover body is surrounded by concentric arcs with a diameter larger than the end cover body. The outer periphery of the end cover body has a protrusion with a threaded hole for connecting the end cover body to the stator. This technical solution also suffers from the aforementioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a high-sealing end cover for motors to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a high-sealing end cover for a motor, comprising an end cover body, an insert frame fixedly connected to the side of the end cover body, a sealing frame one tightly fitted on the surface of the insert frame, an outer frame movably fitted on the side of the end cover body, and a sealing frame two fixedly connected to the inner wall of the outer frame.

[0006] Optionally, a through-hole block is fixedly connected to the side of the end cap body. The through-hole block is designed to allow the mounting bolts to pass through.

[0007] Optionally, a sliding groove is provided on the end cap body, and a slider is slidably connected to the inner wall of the sliding groove. The inner wall of the outer frame is fixedly connected to the slider. The opening of the sliding groove provides space for the lateral movement of the slider.

[0008] Optionally, a track is fixedly connected to the inner wall of the groove, and the slider is slidably connected to the surface of the track. The track can be used to prevent the slider from detaching from the groove.

[0009] Optionally, the track has a threaded opening, and a positioning plate is fixedly connected to the side of the outer frame. Bolts are threadedly connected to the positioning plate, and the relative position between the outer frame and the end cap body is locked by tightening the bolts.

[0010] Optionally, the bolt is adapted to the threaded opening.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This utility model utilizes the mutual cooperation of the end cover body, insert frame, sealing frame one, outer frame, sealing frame two, through block one, slide groove, slider, track, threaded opening, positioning plate, bolt, outer shell, through block two, and mating groove. During use, firstly, the end cover body and the outer shell form a primary sealing structure through the insert frame, sealing frame one, and mating groove. Secondly, the outer frame and sealing frame two form a secondary sealing mechanism. This creates a multi-stage sealing mechanism to seal the gap between the end cover body and the outer shell, greatly improving the sealing performance. This also prevents dust and other contaminants from entering the outer shell, extending the service life of the motor. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention before assembly with the outer shell;

[0014] Figure 2 This utility model Figure 1 A three-dimensional structural diagram of the middle section;

[0015] Figure 3 This is a three-dimensional structural diagram of the present invention from a bottom view.

[0016] In the diagram: 1 End cap body, 2 Insert frame, 3 Sealing frame one, 4 Outer frame, 5 Sealing frame two, 6 Through-hole block one, 7 Slide groove, 8 Slider, 9 Track, 10 Threaded opening, 11 Positioning plate, 12 Bolt, 13 Outer shell, 14 Through-hole block two, 15 Mating groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-3A high-sealing end cap for an electric motor includes an end cap body 1, an insert frame 2 fixedly connected to the side of the end cap body 1, a sealing frame 3 tightly fitted onto the surface of the insert frame 2, an outer frame 4 movably fitted onto the side of the end cap body 1, a sealing frame 5 fixedly connected to the inner wall of the outer frame 4, and a through block 6 fixedly connected to the side of the end cap body 1. Both the sealing frame 3 and the sealing frame 5 are made of rubber. The inner wall of the sealing frame 5 is slightly smaller than the outer edge of the outer shell 13, so that when the sealing frame 5 is fitted onto the outside of the outer shell 13, the sealing frame 5 is tightly fitted onto the surface of the outer shell 13, thus achieving a good sealing effect.

[0019] Please see Figure 1-3 The end cap body 1 has a sliding groove 7, and a slider 8 is slidably connected to the inner wall of the sliding groove 7. The inner wall of the outer frame 4 is fixedly connected to the slider 8. A track 9 is fixedly connected to the inner wall of the sliding groove 7. The slider 8 is slidably connected to the surface of the track 9. A threaded opening 10 is provided on the track 9. A positioning plate 11 is fixedly connected to the side of the outer frame 4. A bolt 12 is threadedly connected to the positioning plate 11. The bolt 12 is compatible with the threaded opening 10.

[0020] Please see Figure 1-3 It also includes a housing 13, an end cap body 1 that is adapted to the housing 13, a mating groove 15 that is provided on the side of the housing 13, the mating groove 15 that is adapted to the insert frame 2 and the sealing frame 3, the outer edge of the sealing frame 3 slightly extends beyond the outer edge of the mating groove 15, in actual use, the insertion direction of the sealing frame 3 is slightly thinner, so that the sealing frame 3 can be inserted into the mating groove 15 well, and after insertion, the sealing frame 3 is squeezed very tightly, the rubber compression sealing performance is very good, and a through block 2 14 is fixedly connected to the housing 13.

[0021] In use, assemble the end cap body 1 and the outer shell 13, insert the insertion frame 2 and sealing frame 1 3 into the mating groove 15, thus achieving a primary sealing treatment. Use bolts and screws to assemble the through block 1 6 and through block 2 14. Forcefully move the outer frame 4, which will cause the slider 8 to slide on the surface of the track 9. The outer frame 4 will also cause the sealing frame 2 5 to move. Use a wrench to tighten the bolt 12, which will be screwed into the threaded port 10. Part of the sealing frame 2 5 will be tightly attached to the surface of the end cap body 1, and the other part will be tightly attached to the surface of the outer shell 13. This provides a secondary sealing treatment for the gap between the end cap body 1 and the outer shell 13, greatly improving the assembly sealing performance of the end cap body 1.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 high sealing end cap for an electric machine comprising an end cap body (1), characterized in that: The side of the end cap body (1) is fixedly connected to a frame (2), and a sealing frame (3) is fastened to the surface of the frame (2). An outer frame (4) is movably fitted to the side of the end cap body (1), and a sealing frame (5) is fixedly connected to the inner wall of the outer frame (4).

2. The motor high seal end cap of claim 1, wherein: A through-hole block (6) is fixedly connected to the side of the end cap body (1).

3. The motor high seal end cap of claim 2, wherein: The end cap body (1) is provided with a sliding groove (7), and a slider (8) is slidably connected to the inner wall of the sliding groove (7). The inner wall of the outer frame (4) is fixedly connected to the slider (8).

4. The motor high seal end cap of claim 3, wherein: A track (9) is fixedly connected to the inner wall of the groove (7), and the slider (8) is slidably connected to the surface of the track (9).

5. The motor high seal end cap of claim 4, wherein: The track (9) has a threaded opening (10), and a positioning plate (11) is fixedly connected to the side of the outer frame (4). A bolt (12) is threadedly connected to the positioning plate (11).

6. The motor high seal end cap of claim 5, wherein: The bolt (12) is compatible with the threaded opening (10).

Images