Explosion-proof motor sealing device

Abstract

The utility model discloses an explosion-proof motor sealing device, and belongs to the technical field of sealing devices. The device mainly comprises a motor, a bearing rod is rotationally installed in the motor, a fan is fixedly installed on the outer circle of the bearing rod, and at least two sets of through holes are formed in the end, close to the bearing rod, of the motor. The second screen is fixedly mounted at the through hole; the lantern ring is connected to the outer circle of the bearing rod in a sleeving mode, a sealing cover matched with the through hole is fixedly installed on the outer side of the lantern ring, a limiting groove is formed in one end of the sealing cover, and a limiting block matched with the sealing cover is fixedly installed at the end, close to the sealing cover, of the motor. And the limiting groove and the limiting block have the same circular radian. According to the explosion-proof motor sealing device, the fan and the through hole are matched for use, so that the interior of the motor can be ventilated when the motor is used, and the heat dissipation effect of the motor can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of sealing devices, and in particular to explosion-proof motor sealing devices. Background Art

[0002] An explosion-proof motor is an electric motor with explosion-proof performance. The interior of the explosion-proof motor is composed of various parts, including the sealed shell of the motor. The sealed shell is very important for the explosion-proof motor and can protect the interior from various damages and pollution.

[0003] For example, the patent with publication number CN206341085U specifically discloses a high-efficiency heat dissipation motor, which includes a housing, an internal bearing of which is mounted with a motor shaft, and both sides of the housing are provided with fan blades, and two sets of fan blades are fixedly mounted on the outer circle of the motor shaft;

[0004] During the implementation of the above patent, the motor shaft drives two sets of fan blades to rotate synchronously, so that the fan blades can continuously blow the inside of the motor, thereby allowing some heat of the motor to be discharged;

[0005] However, when the motor is out of use, the air inlet of the motor is difficult to seal, so the flow of external air may cause dust to enter the interior of the motor.

[0006] Therefore, it is necessary to provide an explosion-proof motor sealing device to solve the above problems.

[0007] It should be noted that the above information disclosed in this background technology section is only for understanding the background technology of the present application concept, and therefore, it may contain information that does not constitute the prior art. Summary of the invention

[0008] Based on the above problems existing in the prior art, the problem to be solved by the present application is to provide an explosion-proof motor sealing device to avoid the problem of dust entering the interior of the motor when the motor is not in use.

[0009] The technical solution adopted by the present application to solve the technical problem is: an explosion-proof motor sealing device, comprising:

[0010] A motor having a bearing rod mounted therein;

[0011] A fan, the fan is fixedly mounted on the outer circumference of the bearing rod, and at least two groups of through holes are opened at one end of the motor close to the bearing rod;

[0012] A collar, which is sleeved on the outer circle of the bearing rod, a sealing cover which is adapted to the through hole is fixedly installed on the outer side of the collar, and a lever is fixedly installed on one end of a group of the sealing covers;

[0013] A groove, the groove and the lever are adapted to each other;

[0014] Wherein: the sealing cover is suitable for being located at the position of the through hole to seal and cover the motor when it is not working, and when the motor is working, the sealing cover is located away from the through hole to ventilate the through hole.

[0015] Furthermore, a second screen is fixedly installed inside the through hole, and the second screen is in a horizontal state with one end of the motor.

[0016] Furthermore, a limiting groove is provided at one end of the sealing cover, and a limiting block which is adapted to the sealing cover is fixedly mounted at one end of the motor close to the sealing cover, and the limiting groove and the limiting block have the same circular arc.

[0017] Furthermore, a wind hood is fixedly installed at one end of the motor, a first screen is provided on the wind hood, fixing blocks are fixedly installed on the outer sides of the wind hood and the motor, and the internal threads of the two groups of the fixing blocks are connected with bolts.

[0018] Furthermore, the shifting rod passes through the groove, and a half ring block is fixedly mounted on one end of the motor close to one group of the sealing covers.

[0019] Furthermore, a base is fixedly installed at the bottom of the motor, and the base is used to support the motor as a whole. A bearing rod is rotatably connected inside the motor.

[0020] The beneficial effect of the present application is that the explosion-proof motor sealing device provided by the present application, through the mutual cooperation between the fan and the through hole, allows the motor to be ventilated internally when in use, thereby improving the heat dissipation effect of the motor.

[0021] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings in the specification, which constitute a part of the present application, are used to provide further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute improper limitations on the present application.

[0023] In the attached picture:

[0024] Figure 1 This is an overall schematic diagram of the explosion-proof motor sealing device in this application;

[0025] Figure 2 for Figure 1 Schematic diagram of the fan;

[0026] Figure 3 for Figure 1 Schematic diagram of the sealing cover of the middle housing;

[0027] Figure 4 for Figure 3 Schematic diagram of the second screen of the middle housing;

[0028] Figure 5 for Figure 4 Schematic diagram of the limiting groove of the middle shell;

[0029] Among them, the reference numerals in the figure are:

[0030] 1. Motor; 12. Base; 13. Bearing rod; 14. Fan cover; 15. First screen; 16. Fixing block; 17. Bolt; 18. Fan; 19. Ring; 20. Sealing cover; 21. Limiting groove; 22. Limiting block; 23. Second screen; 24. Push rod; 25. Semi-ring block; 26. Groove. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0033] like Figure 1 As shown, the present application provides an explosion-proof motor sealing device, including a motor 1, a base 12 is fixedly installed at the bottom of the motor 1, and the base 12 is used to support the motor 1 as a whole. At the same time, the motor 1 is internally rotatably connected with a bearing rod 13, so that when the motor 1 is powered on, the bearing rod 13 rotates inside the motor 1, so that the driving effect can be achieved;

[0034] like Figure 1 - Figure 2 As shown, a fan cover 14 is fixedly installed at one end of the motor 1, and a fixing block 16 is fixedly installed on the outer side of the fan cover 14 and the motor 1, and the internal threads of the two sets of fixing blocks 16 are connected with bolts 17, so that the fan cover 14 and the motor 1 can be fixed after the bolts 17 pass through the fixing blocks 16 respectively, and it is also convenient for disassembly;

[0035] Meanwhile, the bearing rod 13 extends to the outside of the motor 1, and a fan 18 is fixedly mounted on the bearing rod 13 near the outer circle of the wind cover 14. Meanwhile, a first screen 15 is provided on the wind cover 14, so that the bearing rod 13 is driven to rotate after the motor 1 is turned on, and the fan 18 can rotate on one side of the motor 1, so that some heat generated by the motor 1 under long-term use can be discharged;

[0036] When the fan 18 performs heat dissipation treatment on the motor 1, the heat dissipation effect of the fan 18 is relatively low because the wind direction can only blow on the surface of the motor 1;

[0037] like Figure 2 - Figure 3 As shown, at least two groups of through holes are opened at one end of the motor 1 close to the fan 18, and a second screen 23 is fixedly installed inside the through holes;

[0038] At the same time, the outer circle of the bearing rod 13 close to the fan 18 is sleeved with a collar 19, and the collar 19 can rotate synchronously with the bearing rod 13, and after the collar 19 encounters resistance, the collar 19 can rotate asynchronously relative to the bearing rod 13. It can be understood that a ring is provided on the bearing rod 13 to limit the collar 19 to prevent the collar 19 from falling off the bearing rod 13;

[0039] A sealing cover 20 having a number matching that of the through holes is fixedly mounted on the collar 19. The sealing cover 20 covers the second screen 23 in its initial position, so that the interior of the motor 1 can be sealed when the motor 1 is not in use, thereby preventing dust and debris from entering the interior of the motor 1.

[0040] like Figure 3 - Figure 5 As shown, a limiting groove 21 is provided at one end of the sealing cover 20, and a limiting block 22 which is adapted to the limiting groove 21 is fixedly installed at one end of the motor 1 close to the sealing cover 20. The limiting groove 21 and the limiting block 22 have the same circular arc, so that the bearing rod 13 drives the collar 19 to rotate. When the limiting groove 21 rotates to the limiting block 22, the collar 19 will rotate relative to the outer circle of the bearing rod 13, so that the limiting groove 21 will continue to contact the limiting block 22, and the sealing cover 20 will stop running, and will not affect the work of the bearing rod 13. After the sealing cover 20 is rotated, the through hole will be exposed, and at this time, the external air can be blown into the interior of the motor 1 through the fan 18, thereby improving the cooling effect of the motor 1;

[0041] After the motor 1 is used, the through hole needs to be covered again so as to seal the motor 1;

[0042] like Figure 1-Figure 3As shown, a groove 26 is provided at the end of the wind cover 14, and a lever 24 is fixedly installed on one group of sealing covers 20, and the lever 24 passes through the groove 26. At the same time, a semi-ring block 25 is fixedly installed at one end of the motor 1 close to one group of sealing covers 20, and the semi-ring block 25 can be clamped to one group of sealing covers 20, so that when the sealing cover 20 is misaligned with the second screen 23, the lever 24 can be moved, so that the sealing cover 20 can rotate on the outer circle of the bearing rod 13, and then it will be clamped inside the semi-ring block 25, so that the second screen 23 can be covered in time, and dust and debris can be prevented from directly entering the interior when the motor 1 is not working.

[0043] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. Motor sealing device, used for explosion-proof motors, Features: include: A motor (1), wherein a bearing rod (13) is rotatably mounted inside the motor (1); A fan (18), the fan (18) being fixedly mounted on the outer circumference of the bearing rod (13), and at least two groups of through holes are formed at one end of the motor (1) close to the bearing rod (13); A collar (19) is sleeved on the outer circle of the bearing rod (13), a sealing cover (20) adapted to the through hole is fixedly mounted on the outer side of the collar (19), and a lever (24) is fixedly mounted on one end of a group of the sealing covers (20); A groove (26), wherein the groove (26) and the lever (24) are adapted to each other; The sealing cover (20) is suitable for being located at the through hole so as to seal and cover the motor (1) when it is not working, and when the motor (1) is working, the sealing cover (20) is located away from the through hole so as to ventilate the through hole.

2. The motor sealing device according to claim 1, Features: A second screen (23) is fixedly installed inside the through hole, and the second screen (23) is in a horizontal state with one end of the motor (1).

3. The motor sealing device according to claim 1, Features: A limiting groove (21) is provided at one end of the sealing cover (20); a limiting block (22) adapted to the sealing cover (20) is fixedly mounted at one end of the motor (1) close to the sealing cover (20); the limiting groove (21) and the limiting block (22) have the same circular arc.

4. The motor sealing device according to claim 3, Features: A wind hood (14) is fixedly mounted on one end of the motor (1), a first screen (15) is provided on the wind hood (14), and fixing blocks (16) are fixedly mounted on the outer sides of the wind hood (14) and the motor (1), and bolts (17) are connected internally to the two sets of fixing blocks (16) by means of threads.

5. The motor sealing device according to claim 1, Features: The shifting rod (24) passes through the groove (26), and a half ring block (25) is fixedly mounted on one end of the motor (1) close to one group of the sealing covers (20).

6. The motor sealing device according to claim 1, Features: A base (12) is fixedly mounted on the bottom of the motor (1), and the base (12) is used to support the motor (1) as a whole. A bearing rod (13) is rotatably connected inside the motor (1).

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