Motor protection device

Abstract

The utility model provides a motor protection device, belongs to the technical field of motor protection, and aims to solve the problems that the dustproof effect of a motor is affected and the use effect of a conventional motor protection cover is relatively poor due to the fact that heat dissipation holes of the conventional motor protection cover are easily forgotten to be closed. Comprising a bottom plate, a fixed baffle, a mounting plate, a swing baffle, a transmission shaft, a guide shaft and a cooling fan; the fixed baffle is welded to the upper end face of the bottom plate. The upper end face of the bottom plate is in bolted connection with a motor. The mounting plate is welded on the upper end surface of the bottom plate; the swing baffles are hinged to the front side and the rear side of the fixed baffle. The transmission shaft is rotationally connected to the left side of the fixed baffle. The cooling fan is rotationally connected to the upper part of the mounting plate; the guide shaft is fixedly connected to the lower portion of the swing baffle. According to the utility model, the situation that the heat dissipation holes are forgotten to be closed is avoided, the waterproof and dustproof effects of the motor are ensured, the labor intensity of a user is reduced, and the use effect of the protection device is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor protection, and more specifically, particularly relates to a motor protection device. Background Art

[0002] In order to prevent water and dust from entering the motor during use, a protective cover needs to be installed on the outside of the motor. The existing protective cover usually has many heat dissipation holes to avoid damage caused by overheating of the motor. The outer wall of the motor is protected by a rubber protective pad to reduce wear on the outer wall of the motor.

[0003] For example, CN202022133761.8 discloses a motor protective cover, comprising a cover body and a limiter assembly, wherein an anti-collision protection strip is bonded and fixed to the outside of the cover body, and an adjustable heat dissipation assembly is arranged on one side of the cover body, an elastic protection assembly is arranged on the inside of the cover body, and a cable buckle is arranged on the bottom of the inner side of the elastic protection assembly, the limiter assembly is arranged at the lower end of the cover body, a buffer spring is bonded and fixed to the lower end of the inner side of the rubber protection pad, and a connecting plate is bonded and fixed to one side of the buffer spring, a heat dissipation hole is opened inside the heat dissipation box, and a clamping rubber pad is arranged on the inner wall of the heat dissipation box; when the motor is used in a high temperature environment, the motor can dissipate heat through the heat dissipation hole inside the heat dissipation box, and the motor is protected and a heat dissipation path is provided for the motor, and when the motor needs to be protected by waterproof and dustproof, the clamping rubber pad can be placed in the heat dissipation box to realize the waterproof and dustproof protection of the motor by the cover body, thereby improving the flexibility and practicality of the protective cover.

[0004] Based on the above, the existing motor protective cover needs to manually open the heat dissipation holes when dissipating heat, and needs to manually close the heat dissipation holes after use. It is easy for the user to forget to close the heat dissipation holes due to negligence. At this time, dust can easily enter the protective cover through the heat dissipation holes, affecting the dust-proof effect of the motor, and causing the user's labor intensity to be higher, resulting in poor use effect of the protective cover. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a motor protection device to solve the problem that the existing motor protective cover needs to manually open the heat dissipation holes when dissipating heat, and needs to manually close the heat dissipation holes after use. It is easy for the user to forget to close the heat dissipation holes due to negligence. At this time, dust can easily enter the protective cover through the heat dissipation holes, affecting the dustproof effect of the motor, and causing the user's labor intensity to be high, resulting in poor use effect of the protective cover.

[0006] The purpose and effect of the motor protection device of the utility model are achieved by the following specific technical means:

[0007] A motor protection device comprises a base plate, a fixed baffle, a mounting plate, a swing baffle, a transmission shaft, a heat dissipation mechanism, a guide shaft, a positioning mechanism and a heat dissipation fan; the fixed baffle is welded to the upper end surface of the base plate; the upper end surface of the base plate is bolted with a motor; the mounting plate is welded to the upper end surface of the base plate; two swing baffles are provided, and the two swing baffles are respectively hinged on the front and rear sides of the fixed baffle through springs; the transmission shaft is rotatably connected to the left side of the fixed baffle; the heat dissipation mechanism is arranged on the inner side of the fixed baffle; the heat dissipation fan is rotatably connected to the upper part of the mounting plate; a plurality of guide shafts are provided, and the plurality of guide shafts are respectively fixedly connected to the lower parts of the two swing baffles; the positioning mechanism is arranged on the inner side of the swing baffle.

[0008] Furthermore, the positioning mechanism includes a damping spring, a sleeve and a rubber head; a plurality of the sleeves are provided, and the plurality of the sleeves are respectively slidably connected to the outer sides of the plurality of guide shafts; a plurality of the damping springs are provided, and the plurality of the sleeves are respectively elastically connected to the plurality of guide shafts through the plurality of the damping springs; a plurality of the rubber heads are provided, and the plurality of the rubber heads are respectively fixedly connected to the outer sides of the plurality of the sleeves, and the outer sides of the rubber heads are spherical.

[0009] Furthermore, the heat dissipation mechanism includes an output shaft and a synchronization mechanism; the output shaft is rotatably connected to the left side of the fixed baffle, and a square hole is opened in the middle of the output shaft; a square shaft with the same shape as the square hole is welded on the motor shaft of the motor; the synchronization mechanism is a synchronous belt transmission mechanism, and the motor shaft of the motor and the transmission shaft are transmission-connected through the synchronization mechanism.

[0010] Furthermore, the heat dissipation mechanism also includes a universal coupling and a crankshaft; the universal coupling is bolted to the right side of the transmission shaft; the crankshaft is bolted to the right side of the universal coupling, and the crankshaft is fixedly connected to the heat dissipation fan.

[0011] Furthermore, the heat dissipation mechanism also includes a filter screen and a sealing plate; a plurality of heat dissipation holes are respectively opened at the lower part of the two swing baffles; a plurality of filter screens are provided, and the plurality of filter screens are respectively fixedly connected to the lower part of the two swing baffles; a plurality of sealing plates are provided, and the plurality of sealing plates are respectively hinged to the inner side of the lower part of the two swing baffles.

[0012] Furthermore, the heat dissipation mechanism also includes a connecting rope and a return spring; a plurality of connecting ropes are provided, and the plurality of connecting ropes are respectively fixedly connected to the inner side surfaces of the plurality of sealing plates, and the plurality of connecting ropes are all sleeved on the outer side of the crankshaft; a plurality of return springs are provided, and the plurality of sealing plates are respectively elastically connected to the two swing baffles through the plurality of return springs.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The motor is cooled by the wind generated by the cooling fan, the dust in the air is isolated outside the protective cover by the filter, and the opening and closing of the sealing plate is controlled by the rotation of the crankshaft, which effectively avoids the inconvenience of manually opening and closing the cooling holes and the situation where the user forgets to close the cooling holes due to negligence, thereby ensuring the waterproof and dustproof effect of the motor, reducing the labor intensity of the user, and improving the use effect of the protective device.

[0015] The vibration generated during the operation of the motor is buffered by the damping spring and the rubber head, which effectively reduces the damage caused by large vibration to the internal parts of the motor and increases the service life of the motor. At the same time, the contact between the rubber head and the motor avoids wear on the motor casing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the installation position of the transmission shaft of the utility model.

[0018] Figure 3 It is a schematic diagram of the position structure of the heat dissipation fan of the utility model.

[0019] Figure 4 It is a schematic diagram of the positional relationship between the swing baffle and the fixed baffle of the utility model.

[0020] Figure 5 It is a structural schematic diagram of a crankshaft of the utility model.

[0021] Figure 6 It is a structural schematic diagram of the guide shaft of the utility model.

[0022] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0023] 1. Bottom plate; 2. Fixed baffle; 201. Output shaft; 3. Mounting plate; 4. Swing baffle; 401. Filter; 402. Sealing plate; 403. Connecting rope; 404. Reset spring; 5. Transmission shaft; 501. Synchronizing mechanism; 502. Universal coupling; 503. Crankshaft; 6. Guide shaft; 601. Damping spring; 602. Sleeve; 603. Rubber head; 7. Cooling fan. DETAILED DESCRIPTION

[0024] The implementation of the utility model is further described in detail below in conjunction with the drawings and examples.

[0025] Embodiment 1:

[0026] As attached Figure 1 To Attachment Figure 6 As shown:

[0027] The utility model provides a motor protection device, comprising a base plate 1, a fixed baffle plate 2, a mounting plate 3, a swing baffle plate 4, a transmission shaft 5, a heat dissipation mechanism and a heat dissipation fan 7; the fixed baffle plate 2 is welded to the upper end surface of the base plate 1; the upper end surface of the base plate 1 is bolted with a motor; the mounting plate 3 is welded to the upper end surface of the base plate 1; two swing baffle plates 4 are provided, and the two swing baffle plates 4 are respectively hinged to the front and rear sides of the fixed baffle plate 2 through springs; the transmission shaft 5 is rotatably connected to the left side of the fixed baffle plate 2; the heat dissipation mechanism is arranged on the inner side of the fixed baffle plate 2; the heat dissipation fan 7 is rotatably connected to the upper part of the mounting plate 3.

[0028] Among them, the heat dissipation mechanism includes an output shaft 201 and a synchronization mechanism 501; the output shaft 201 is rotatably connected to the left side of the fixed baffle 2, and a square hole is opened in the middle of the output shaft 201; a square shaft with the same shape as the square hole is welded on the motor shaft of the motor; the synchronization mechanism 501 is a synchronous belt transmission mechanism, and the motor shaft of the motor is connected to the transmission shaft 5 through the synchronization mechanism 501.

[0029] The heat dissipation mechanism further includes a universal coupling 502 and a crankshaft 503 ; the universal coupling 502 is bolted to the right side of the transmission shaft 5 ; the crankshaft 503 is bolted to the right side of the universal coupling 502 , and the crankshaft 503 is fixedly connected to the heat dissipation fan 7 .

[0030] Among them, the heat dissipation mechanism also includes a filter screen 401 and a sealing plate 402; a plurality of heat dissipation holes are respectively opened at the lower part of the two swing baffles 4; a plurality of filter screens 401 are provided, and the plurality of filter screens 401 are respectively fixedly connected to the lower part of the two swing baffles 4; a plurality of sealing plates 402 are provided, and the plurality of sealing plates 402 are respectively hinged on the inner side of the lower part of the two swing baffles 4.

[0031] Among them, the heat dissipation mechanism also includes a connecting rope 403 and a return spring 404; a plurality of connecting ropes 403 are provided, and the plurality of connecting ropes 403 are respectively fixedly connected to the inner side surfaces of the plurality of sealing plates 402, and the plurality of connecting ropes 403 are all sleeved on the outer side of the crankshaft 503; a plurality of return springs 404 are provided, and the plurality of sealing plates 402 are respectively elastically connected to the two swing baffles 4 through the plurality of return springs 404.

[0032] The specific usage and function of this embodiment are as follows: flip the swing baffle 4 upward, then the motor can be easily placed under the fixed baffle 2, the position of the motor is fixed by bolts, and the square shaft on the motor shaft is inserted into the square hole on the output shaft 201. At this time, the motor can drive the output shaft 201 to rotate, and the swing baffle 4 can be closed to protect the motor. When the motor is running, the transmission shaft 5 can rotate with the motor shaft under the action of the synchronization mechanism 501, and the crankshaft 503 rotates with the transmission shaft 5 under the connection action of the universal coupling 502. The crankshaft 503 drives the cooling fan 7 above the mounting plate 3 to rotate. When the crankshaft 503 rotates, the connecting rope 403 is pulled, and when the connecting rope 403 moves, the sealing plate 402 is pulled open. At this time, the hot air in the protective cover can be dissipated to the outside through the heat dissipation holes, and the air entering the heat dissipation holes will be filtered by the filter 401. When the motor stops running, the crankshaft 503 stops rotating, and the sealing plate 402 automatically resets under the action of the reset spring 404 to seal the heat dissipation holes.

[0033] Embodiment 2:

[0034] As attached Figure 5 To Attachment Figure 6 As shown:

[0035] On the basis of the first embodiment, it further includes a guide shaft 6 and a positioning mechanism; a plurality of guide shafts 6 are provided, and the plurality of guide shafts 6 are respectively fixedly connected to the lower part of the two swing baffles 4; and the positioning mechanism is provided on the inner side of the swing baffle 4.

[0036] Among them, the positioning mechanism includes a damping spring 601 and a sleeve 602; a plurality of sleeves 602 are provided, and the plurality of sleeves 602 are respectively slidably connected to the outside of the plurality of guide shafts 6; a plurality of damping springs 601 are provided, and the plurality of sleeves 602 are respectively elastically connected to the plurality of guide shafts 6 through the plurality of damping springs 601.

[0037] The positioning mechanism further includes a rubber head 603 ; a plurality of rubber heads 603 are provided, and the plurality of rubber heads 603 are respectively fixedly connected to the outer side surfaces of the plurality of sleeves 602 , and the outer side of the rubber head 603 is spherical.

[0038] The specific usage and function of this embodiment: after closing the swing baffle 4, the rubber head 603 moves inward along the guide shaft 6 following the sleeve 602 under the elastic force of the damping spring 601. When the rubber head 603 contacts the motor, the damping spring 601 presses the rubber head 603, thereby buffering the vibration generated during the operation of the motor.

Claims

1. A motor protection device, comprising a base plate (1), a fixed baffle (2), a mounting plate (3), a swing baffle (4), a transmission shaft (5), a heat dissipation mechanism, a guide shaft (6), a positioning mechanism and a heat dissipation fan (7); the fixed baffle (2) is welded to the upper end surface of the base plate (1); the upper end surface of the base plate (1) is bolted with a motor; the mounting plate (3) is welded to the upper end surface of the base plate (1); the characteristics are: The front and rear sides of the fixed baffle (2) are respectively hinged with a swing baffle (4); the transmission shaft (5) is rotatably connected to the left side of the fixed baffle (2); the heat dissipation mechanism is arranged on the inner side of the fixed baffle (2); the heat dissipation fan (7) is rotatably connected to the upper part of the mounting plate (3); the lower part of each swing baffle (4) is fixedly connected with a plurality of guide shafts (6); and the positioning mechanism is arranged on the inner side of the swing baffle (4).

2. A motor protection device as claimed in claim 1, characterized in that: The heat dissipation mechanism comprises an output shaft (201) with a square hole in the middle and a synchronization mechanism (501); the output shaft (201) is rotatably connected to the left side of the fixed baffle (2); and the motor shaft of the motor is transmission-connected to the transmission shaft (5) via the synchronization mechanism (501).

3. A motor protection device as claimed in claim 1, characterized in that: The heat dissipation mechanism also includes a universal coupling (502) and a crankshaft (503); the universal coupling (502) is bolted to the right side of the transmission shaft (5); the crankshaft (503) is bolted to the right side of the universal coupling (502), and the crankshaft (503) is fixedly connected to the heat dissipation fan (7).

4. A motor protection device as claimed in claim 3, characterized in that: The heat dissipation mechanism further comprises a filter screen (401) and a sealing plate (402); a plurality of the filter screens (401) are fixedly connected to the lower portion of each swing baffle (4); and a plurality of the sealing plates (402) are hingedly connected to the inner side of the lower portion of each swing baffle (4).

5. A motor protection device as claimed in claim 4, characterized in that: The heat dissipation mechanism also includes a connecting rope (403) and a return spring (404); the inner side surface of each sealing plate (402) is fixedly connected to a connecting rope (403), and the connecting rope (403) is sleeved on the outer side of the crankshaft (503); each sealing plate (402) is elastically connected to the swing baffle (4) via a plurality of return springs (404).

6. A motor protection device as claimed in claim 1, characterized in that: The positioning mechanism comprises a damping spring (601), a sleeve (602) and a rubber head (603); the outer side of each guide shaft (6) is slidably connected to a sleeve (602); each sleeve (602) is elastically connected to the guide shaft (6) via a damping spring (601); and the outer side surface of each sleeve (602) is fixedly connected to a spherical rubber head (603).

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