Motor casing

Abstract

The utility model discloses a motor casing, which comprises a casing body, a casing cover and a waterproof and dustproof ventilation valve, the casing cover is connected with the casing body, the casing body is communicated with the waterproof and dustproof ventilation valve, the casing body is of a horizontally arranged cylinder structure, and the waterproof and dustproof ventilation valve is arranged in the casing body. A first mounting groove and a second mounting groove which are evenly distributed are formed in the end, close to the shell cover, of the machine shell body in an annular array mode. When the shell cover is installed, operation is easy and convenient, stable connection can be achieved by inserting the threaded rod and the limiting rod into the corresponding grooves and then rotating the rotating ring, traditional complex tools and tedious steps are avoided, the installation efficiency is improved, installation is stable, and the error possibility is low; when the motor works, gas exchange is performed through the waterproof and dustproof ventilation valve, external gas is filtered by the filter membrane and then enters the casing, and the protective cover is in threaded connection with one end of the valve body for further protection and sealing, so that dust and moisture are effectively prevented from entering, normal operation and service life of the motor are guaranteed, and working reliability in a severe environment is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of motors, and particularly relates to a motor housing. Background Art

[0002] In the application field of motors, as a key component for protecting internal components, the performance and structural rationality of the motor housing are crucial.

[0003] The conventional installation method of the motor housing is usually complex, requiring a variety of tools and cumbersome steps, which not only consumes time but also makes it difficult to ensure the stability of installation. This not only reduces production efficiency but also increases the possibility of errors in actual operation; in terms of protection performance, especially in terms of waterproof and dustproof, the performance of the conventional motor housing is often unsatisfactory, and dust and moisture easily enter the interior of the housing, seriously affecting the normal operation and service life of the motor.

[0004] Therefore, we propose a motor housing. Summary of the Utility Model

[0005] The main purpose of the utility model is to provide a motor housing, in order to prevent the low efficiency and instability during the installation process, thereby improving the convenience and reliability of installation; in order to prevent dust and moisture from invading the interior of the housing, thereby improving the protection performance and service life of the motor, and effectively solving the problems in the background art.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0007] A motor housing includes a housing body, a housing cover and a waterproof, dustproof and breathable valve. The housing cover is connected to the housing body, and the housing body is in communication with the waterproof, dustproof and breathable valve. The housing body is a horizontally arranged cylindrical structure. At one end of the housing body close to the housing cover, a first installation groove and a second installation groove are respectively annularly and evenly arranged. At one end of the housing cover, a threaded rod and a limiting rod that can be inserted into the first installation groove and the second installation groove are respectively provided. A fixing block is fixedly installed at one end of the threaded rod. The fixing block is rotationally connected to a clamping block through a fixing shaft. A threaded cylinder is threadedly driven on the outside of the threaded rod close to the clamping block. A moving ring is slidably connected to the outside of the threaded rod, and the moving ring is located between the fixing block and the threaded cylinder. The moving ring and the clamping block are rotationally connected through a connecting rod. A plurality of groups of sliding grooves are opened on the inner wall of the first installation groove. A slider is slidably connected inside the sliding groove. One side of the slider away from the sliding groove is fixedly connected to the threaded cylinder;

[0008] A gear is fixedly connected to the outside of the threaded rod away from the fixing block. A rotating groove is opened on the housing cover. A rotating ring is clamped in the rotating groove. A rack is arranged on the inner side of the rotating ring. The gear extends into the rotating groove and meshes with the rack;

[0009] The waterproof, dustproof and breathable valve includes a valve body, a filter membrane, a pressing ring and a protective cover. The filter membrane is fixed inside the valve body through the pressing ring. The protective cover is threadedly connected to one end of the valve body. The valve body is provided with multiple groups of ventilation grooves, and ventilation openings are provided on each of the multiple groups of ventilation grooves.

[0010] By adopting the above technical solution, the threaded rod and the limiting rod at one end of the shell cover are respectively aligned with the first installation groove and the second installation groove on the machine shell body and inserted. Then, rotate the rotating ring. Since the rack inside the rotating ring meshes with the gear on the threaded rod, rotating the rotating ring will drive the gear to rotate. The rotation of the gear drives the threaded rod to rotate. Since the threaded cylinder is in threaded transmission connection with the threaded rod, the threaded cylinder will move along the axial direction of the threaded rod. As the threaded cylinder moves, the moving ring is pushed towards the fixed block through the connecting rod. Since the threaded cylinder is slidably connected to the sliding groove in the first installation groove through the slider, pushing the moving ring makes it move only along the axial direction of the threaded rod. When the moving ring approaches the fixed block, it will drive the clamping block to rotate, so that the clamping block is clamped on the inner wall of the first installation groove, thus realizing the stable connection between the shell cover and the machine shell body. During the whole installation process, through the simple operation of rotating the rotating ring, the rapid and stable assembly of the shell cover and the machine shell body can be realized.

[0011] During the operation of the motor, the gas exchange between the inside and the outside of the machine shell is realized through the waterproof, dustproof and breathable valve. The outside gas enters through the ventilation grooves on the valve body, passes through the filtration of the filter membrane, removes dust and moisture, and then enters the inside of the machine shell through the ventilation openings, realizing gas exchange while ensuring the cleanliness and dryness of the inside of the machine shell. The protective cover is threadedly connected to one end of the valve body, playing a role of protection and further sealing. The waterproof, dustproof and breathable valve can effectively ensure the protection performance of the machine shell.

[0012] Furthermore, there is a gap between the protective cover and the valve body.

[0013] By adopting the above technical solution, the gap between the protective cover and the valve body helps the gas to flow, and at the same time the protective cover can prevent external foreign objects from directly hitting the valve body and the filter membrane to a certain extent, playing a protective role.

[0014] Furthermore, multiple groups of first limiting grooves are formed at the outer edge of the outer end of the limiting rod, and first limiting balls that can be inserted into the first limiting grooves are respectively arranged in the second installation grooves.

[0015] By adopting the above technical solution, when the limiting rod is inserted into the second installation groove, the first limiting balls will be inserted into the first limiting grooves at the outer edge of the limiting rod.

[0016] Furthermore, the opposite sides of the first limiting balls are respectively connected to the inner walls of the first limiting grooves through first springs.

[0017] By adopting the above technical solution, since the first limiting ball is squeezed, the first spring connected to it will be compressed. When the first limiting groove on the limiting rod moves to a position corresponding to the first limiting ball, under the elastic force of the first spring, the first limiting ball will pop into the first limiting groove; the cooperation between the first limiting ball and the first limiting groove can provide preliminary positioning and a certain degree of limiting during the installation process of the shell cover, so that the shell cover will not shake or shift easily before subsequent fastening operations, ensuring the accuracy and stability of the installation. When it is necessary to disassemble the shell cover, applying sufficient external force can overcome the elastic force of the first spring, so that the first limiting ball disengages from the first limiting groove, and thus the limiting rod can be pulled out of the second installation groove.

[0018] Further, multiple groups of annular arrays that are evenly distributed are respectively formed on the outer portions of both ends of the rotating ring, and multiple groups of grooves in the front-back axial direction are respectively formed on the two side walls of the rotating groove.

[0019] By adopting the above technical solution, the second limiting balls in the grooves will be embedded into the second limiting grooves on the outer portions of both ends of the rotating ring.

[0020] Further, second limiting balls that can be inserted into the second limiting grooves are respectively provided in adjacent grooves, and the opposite sides of adjacent second limiting balls are respectively connected to the inner walls of the grooves through second springs in the front-back axial direction.

[0021] By adopting the above technical solution, when the rotating ring rotates to a specific position, the second limiting balls are squeezed by the surface of the rotating ring, compress the second springs and move towards the inside of the grooves. When the second limiting grooves on the rotating ring rotate to positions corresponding to the second limiting balls, the second springs extend, push the second limiting balls to insert into the second limiting grooves. The cooperation between the second limiting balls and the second limiting grooves can effectively limit the rotating ring, prevent the rotating ring from rotating or loosening by itself without external force intervention, and ensure the firmness and reliability of the connection between the shell cover and the housing body. When it is necessary to adjust the rotating ring again, applying sufficient external force to overcome the elastic force of the second springs, so that the second limiting balls disengage from the second limiting grooves, and then the rotating ring can be rotated continuously.

[0022] Compared with the prior art, the present utility model has the following beneficial effects:

[0023] (1) For a motor housing of the present utility model, when installing the shell cover of the motor housing, only the threaded rod and the limiting rod at one end of the shell cover need to be respectively aligned with the first installation groove and the second installation groove on the housing body and inserted, and then by rotating the rotating ring, a firm connection between the shell cover and the housing body can be realized. This method avoids the use of complex tools and cumbersome steps in the traditional installation method, and greatly improves the installation efficiency; at the same time, the clamping block is clamped on the inner wall of the first installation groove under the push of the moving ring, and the threaded transmission connection between the threaded barrel and the threaded rod ensures the firmness of the installation and reduces the possibility of errors.

[0024] (2) A motor housing of the present utility model. During the operation of the motor, the gas exchange between the inside and outside of the housing is realized through a waterproof, dustproof and breathable valve. The outside gas passes through the filter membrane in the breathable groove on the valve body, removes dust and moisture, and then enters the inside of the housing from the breathable port, ensuring the cleanliness and dryness inside the housing. The protective cover is threadedly connected to one end of the valve body, further playing a role in protection and sealing. This design effectively prevents dust and moisture from entering the inside of the housing, provides a strong guarantee for the normal operation and service life of the motor, and enhances the working reliability of the motor in harsh environments. Brief Description of the Drawings

[0025] Figure 1 It is a schematic structural diagram of a motor housing of the present utility model.

[0026] Figure 2 It is a schematic structural diagram of the housing body of a motor housing of the present utility model.

[0027] Figure 3 It is a cross-sectional view of the shell cover of a motor housing of the present utility model.

[0028] Figure 4 It is of a motor housing of the present utility model Figure 3 Enlarged view of part A in

[0029] Figure 5 It is a schematic structural diagram of the partial connection structure between the housing body and the shell cover of a motor housing of the present utility model.

[0030] Figure 6 It is a schematic structural diagram of the partial connection structure between the shell body and the shell cover of a motor housing of the present utility model.

[0031] Figure 7 It is a schematic structural diagram of the partial connection structure between the rotating ring and the shell cover of a motor housing of the present utility model.

[0032] Figure 8 It is a schematic structural diagram of the waterproof, dustproof and breathable valve of a motor housing of the present utility model.

[0033] In the figure: 1. Housing body; 2. Shell cover; 3. Waterproof, dustproof and breathable valve; 4. First installation groove; 5. Second installation groove; 6. Valve body; 7. Filter membrane; 8. Pressing ring; 9. Protective cover; 10. Breathable groove; 11. Threaded rod; 12. Fixed block; 13. Clamping block; 14. Moving ring; 15. Connecting rod; 16. Threaded cylinder; 17. Gear; 18. Rotating groove; 19. Rotating ring; 20. Rack; 21. Limiting rod; 22. First limiting groove; 23. First limiting ball; 24. First spring; 25. Second limiting groove; 26. Second limiting ball; 27. Groove; 28. Second spring; 29. Breathable port; 30. Sliding groove; 31. Slider. Detailed implementation manners

[0034] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific implementation manners.

[0035] In order to prevent low efficiency and instability during the installation process, thereby improving the convenience and reliability of installation; in order to prevent dust and moisture from invading the inside of the casing, thereby improving the protection performance and service life of the motor, as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 shown, a motor casing includes a casing body 1, a casing cover 2 and a waterproof, dustproof and breathable valve 3. The casing cover 2 is connected to the casing body 1, and the casing body 1 is in communication with the waterproof, dustproof and breathable valve 3. The casing body 1 is a horizontally arranged cylindrical structure. One end of the casing body 1 close to the casing cover 2 is respectively annularly arrayed with uniformly distributed first mounting grooves 4 and second mounting grooves 5. One end of the casing cover 2 is respectively provided with threaded rods 11 and limiting rods 21 that can be inserted into the first mounting groove 4 and the second mounting groove 5. A fixing block 12 is fixedly installed at one end of the threaded rod 11. The fixing block 12 is rotatably connected to a clamping block 13 through a fixing shaft. A threaded cylinder 16 is threadedly driven on the outside of the threaded rod 11 close to the clamping block 13. A moving ring 14 is slidably connected to the outside of the threaded rod 11, and the moving ring 14 is located between the fixing block 12 and the threaded cylinder 16. The moving ring 14 and the clamping block 13 are rotatably connected through a connecting rod 15. A plurality of groups of sliding grooves 30 are opened on the inner wall of the first mounting groove 4. A slider 31 is slidably connected inside the sliding groove 30. One side of the slider 31 away from the sliding groove 30 is fixedly connected to the threaded cylinder 16;

[0036] A gear 17 is fixedly connected to the outside of the threaded rod 11 away from the fixing block 12. A rotating groove 18 is opened on the casing cover 2. A rotating ring 19 is clamped in the rotating groove 18. A rack 20 is provided on the inner side of the rotating ring 19. The gear 17 extends into the rotating groove 18 and meshes with the rack 20;

[0037] The waterproof, dustproof and breathable valve 3 includes a valve body 6, a filter membrane 7, a pressing ring 8 and a protective cover 9. The filter membrane 7 is fixed inside the valve body 6 through the pressing ring 8. The protective cover 9 is threadedly connected to one end of the valve body 6. A plurality of groups of air permeable grooves 10 are provided on the valve body 6. Air vents 29 are provided on each of the plurality of groups of air permeable grooves 10.

[0038] During use, insert the threaded rod 11 and the limit rod 21 at one end of the shell cover 2 into the first installation groove 4 and the second installation groove 5 on the main body 1 of the machine shell respectively. Then, rotate the rotary ring 19. Since the rack 20 inside the rotary ring 19 meshes with the gear 17 on the threaded rod 11, rotating the rotary ring 19 will drive the gear 17 to rotate. The rotation of the gear 17 drives the threaded rod 11 to rotate. Since the threaded barrel 16 is in threaded transmission connection with the threaded rod 11, the threaded barrel 16 will move along the axial direction of the threaded rod 11. As the threaded barrel 16 moves, the moving ring 14 is pushed towards the fixed block 12 through the connecting rod 15. Since the threaded barrel 16 is slidably connected with the sliding groove 30 in the first installation groove 4 through the slider 31, pushing the moving ring 14 makes it move only along the axial direction of the threaded rod 11. When the moving ring 14 approaches the fixed block 12, it will drive the clamping block 13 to rotate, so that the clamping block 13 is clamped on the inner wall of the first installation groove 4, thus realizing the stable connection between the shell cover 2 and the main body 1 of the machine shell. During the whole installation process, through the simple operation of rotating the rotary ring 19, the quick and stable assembly of the shell cover and the main body of the machine shell can be realized;

[0039] During the operation of the motor, the gas exchange between the inside and outside of the machine shell is realized through the waterproof, dustproof and breathable valve 3. External gas enters through the breathable groove 10 on the valve body 6, is filtered by the filter membrane 7 to remove dust and moisture, and then enters the inside of the machine shell through the breathable port 29. While realizing gas exchange, the cleanliness and dryness of the inside of the machine shell are ensured. The protective cover 9 is threadedly connected to one end of the valve body 6, playing a role in protection and further sealing. The waterproof, dustproof and breathable valve 3 can effectively ensure the protection performance of the machine shell.

[0040] Exemplarily, as Figure 8 shown, the present utility model further includes that there is a gap between the protective cover 9 and the valve body 6.

[0041] During use, the gap between the protective cover 9 and the valve body 6 is helpful for gas circulation. At the same time, the protective cover 9 can prevent external foreign objects from directly hitting the valve body 6 and the filter membrane 7 to a certain extent, playing a protective role.

[0042] Exemplarily, as Figure 6 shown, the present utility model further includes that a plurality of groups of first limit grooves 22 are formed at the outer edge of the outer end of the limit rod 21, and first limit balls 23 that can be inserted into the first limit grooves 22 are respectively arranged in the second installation groove 5.

[0043] During use, when the limit rod 21 is inserted into the second installation groove 5, the first limit balls 23 will be inserted into the first limit grooves 22 at the outer edge of the limit rod 21.

[0044] Exemplarily, as Figure 6 shown, the present utility model further includes that the opposite sides of the first limit balls 23 are respectively connected to the inner walls of the first limit grooves 22 through first springs 24.

[0045] During use, since the first limiting ball 23 is squeezed, the first spring 24 connected thereto will be compressed. When the first limiting groove 22 on the limiting rod 21 moves to a position corresponding to the first limiting ball 23, under the elastic force of the first spring 24, the first limiting ball 23 will pop into the first limiting groove 22; the cooperation between the first limiting ball 23 and the first limiting groove 22 can provide preliminary positioning and a certain degree of limitation during the installation process of the shell cover 2, so that the shell cover 2 will not shake or shift easily before subsequent fastening operations, ensuring the accuracy and stability of the installation. When it is necessary to disassemble the shell cover 2, applying sufficient external force can overcome the elastic force of the first spring 24, so that the first limiting ball 23 is disengaged from the first limiting groove 22, and thus the limiting rod 21 can be pulled out of the second installation groove 5.

[0046] Exemplarily, as Figure 7 shown, the present utility model further includes that a plurality of groups of annular arrays and evenly distributed second limiting grooves 25 are respectively formed on the outer portions of both ends of the rotating ring 19, and a plurality of groups of axially front-back grooves 27 are respectively formed on both side walls of the rotating groove 18.

[0047] During use, the second limiting balls 26 in the grooves 27 will be embedded into the second limiting grooves 25 on the outer portions of both ends of the rotating ring 19.

[0048] Exemplarily, as Figure 7 shown, the present utility model further includes that second limiting balls 26 that can be inserted into the second limiting grooves 25 are respectively arranged in adjacent grooves 27, and the opposite sides of adjacent second limiting balls 26 are respectively connected to the inner walls of the grooves 27 through axially front-back second springs 28.

[0049] During use, when the rotating ring 19 rotates to a specific position, the second limiting balls 26 are squeezed by the surface of the rotating ring 19, compressing the second springs 28 and moving towards the inside of the grooves 27. When the second limiting grooves 25 on the rotating ring 19 rotate to a position corresponding to the second limiting balls 26, the second springs 28 extend, pushing the second limiting balls 26 to be inserted into the second limiting grooves 25. The cooperation between the second limiting balls 26 and the second limiting grooves 25 can effectively limit the rotating ring 19, preventing the rotating ring 19 from rotating or loosening by itself without external force intervention, ensuring the stability and reliability of the connection between the shell cover 2 and the housing body 1. When it is necessary to adjust the rotating ring 19 again, applying sufficient external force to overcome the elastic force of the second springs 28, so that the second limiting balls 26 are disengaged from the second limiting grooves 25, and then the rotating ring 19 can be rotated continuously.

[0050] It should be noted that the utility model is a motor housing. When the housing cover needs to be installed, the threaded rod 11 and the limiting rod 21 at one end of the housing cover 2 are respectively aligned with the first installation groove 4 and the second installation groove 5 on the housing body 1, and then inserted. During the insertion process, the first limiting ball 23 is squeezed and compressed by the limiting rod 21 to compress the first spring 24. When the first limiting groove 22 corresponds to the position of the first limiting ball 23, the first limiting ball 23 is ejected into the first limiting groove 22 under the elastic force of the first spring 24 to achieve preliminary positioning.

[0051] The rotating ring 19 is rotated, and the inner rack 20 drives the gear 17 to rotate, so that the threaded rod 11 is rotated, and the threaded barrel 16 moves axially due to the threaded transmission with the threaded rod 11. The threaded barrel 16 is limited to rotate by the cooperation between the slider 31 and the slide groove 30, and can only move axially. The moving ring 14 is pushed close to the fixed block 12 through the connecting rod 15, and the moving ring 14 drives the clamping block 13 to rotate and clamp on the inner wall of the first mounting groove 4, thereby completing the stable connection between the shell cover 2 and the shell body 1;

[0052] When the motor is working, the gas inside the casing and outside is exchanged through the waterproof and dustproof breathable valve 3. The outside gas passes through the breathable groove 10 on the valve body 6, and after the dust and moisture are filtered by the filter membrane 7, it enters the casing from the breathable port 29;

[0053] When it is necessary to remove the shell cover, apply sufficient external force to overcome the elastic force of the first spring 24 to make the first limiting ball 23 disengage from the first limiting groove 22, and rotate the rotating ring 19 in the opposite direction to reset the threaded cylinder 16, the movable ring 14 and the block 13, release the connection between the shell cover 2 and the casing body 1, and then pull out the shell cover 2, apply sufficient external force to overcome the elastic force of the second spring 28 to make the second limiting ball 26 disengage from the second limiting groove 25, and then continue to rotate the rotating ring 19 for adjustment.

[0054] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A motor housing, comprising a housing body (1), a housing cover (2) and a waterproof and dustproof air valve (3), characterized in that: The shell cover (2) is connected to the shell body (1), and the shell body (1) is connected to the waterproof and dustproof breathable valve (3). The shell body (1) is a horizontally arranged cylindrical structure. The end of the shell body (1) close to the shell cover (2) is respectively provided with a first installation groove (4) and a second installation groove (5) uniformly distributed in a circular array. One end of the shell cover (2) is respectively provided with a threaded rod (11) and a limit rod (21) which can be plugged into the first installation groove (4) and the second installation groove (5). One end of the threaded rod (11) is fixedly installed with a fixed block (12), and the fixed block (12) is rotatably connected to the fixed shaft. The fixing block (13) comprises a fixing block (13), the threaded rod (11) is provided with a threaded barrel (16) for external thread transmission close to the fixing block (13), the threaded rod (11) is slidably connected with a moving ring (14) on the outside, and the moving ring (14) is located between the fixing block (12) and the threaded barrel (16), the moving ring (14) and the fixing block (13) are rotatably connected via a connecting rod (15), the inner wall of the first mounting groove (4) is provided with a plurality of groups of sliding grooves (30), the inside of the sliding groove (30) is slidably connected with a slider (31), and the slider (31) is fixedly connected with the threaded barrel (16) on a side away from the sliding groove (30); The threaded rod (11) is fixedly connected to the outside of the fixed block (12) with a gear (17); the shell cover (2) is provided with a rotation groove (18); a rotation ring (19) is clamped in the rotation groove (18); a rack (20) is provided on the inner side of the rotation ring (19); the gear (17) extends into the rotation groove (18) and meshes with the rack (20); The waterproof and dustproof breathable valve (3) comprises a valve body (6), a filter membrane (7), a pressure ring (8) and a protective cover (9); the filter membrane (7) is fixed in the valve body (6) by the pressure ring (8); the protective cover (9) is threadedly connected to one end of the valve body (6); the valve body (6) is provided with a plurality of groups of breathable grooves (10); and each of the plurality of groups of breathable grooves (10) is provided with a breathable port (29).

2. A motor housing according to claim 1, characterized in that: There is a gap between the protective cover (9) and the valve body (6).

3. The motor housing according to claim 1, characterized in that: A plurality of first limiting grooves (22) are provided at the outer edge of one end of the limiting rod (21), and first limiting balls (23) which can be inserted into the first limiting grooves (22) are respectively provided in the second installation grooves (5).

4. A motor housing according to claim 3, characterized in that: The opposite sides of the first limiting ball (23) are connected to the inner wall of the first limiting groove (22) via first springs (24).

5. The motor housing according to claim 1, characterized in that: The two ends of the rotating ring (19) are provided with multiple groups of second limiting grooves (25) in an annular array and evenly distributed, and the two side walls of the rotating groove (18) are provided with multiple groups of front-to-rear axial grooves (27).

6. A motor housing according to claim 5, characterized in that: Second limiting balls (26) that can be inserted into the second limiting grooves (25) are respectively arranged in adjacent grooves (27), and the opposite sides of adjacent second limiting balls (26) are connected to the inner wall of the grooves (27) via second springs (28) in the front and rear axial directions.

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