Protective device for low-voltage motor

Abstract

The utility model discloses a protection device used for a low voltage motor, comprising a base plate, the upper end of the base plate is movably provided with a mounting structure, the mounting structure comprises a mounting rack, a moving plate and a moving block, the side end of the base plate is fixedly provided with supporting sheets, a side plate is detachably arranged between the two supporting sheets, and the moving block is arranged on the side plate. The side plates and the supporting sheets are connected through bolts, and different low-voltage motors are installed through the installation structure. A mounting frame is detachably arranged between the two supporting pieces, a plurality of rotating blades are arranged on the mounting frame, a top plate is detachably arranged on the supporting pieces, and the top plate is in threaded connection with the supporting pieces, so that the top end of the protection device is conveniently sealed through the top plate.

Description

Technical Field

[0001] The utility model relates to the field of motor protection, and more specifically, to a protection device for a low-voltage motor. Background Art

[0002] Low-voltage motors are very common in industrial production. A large number of equipment are equipped with low-voltage motors. The low-voltage motors are used to drive the parts of the equipment that need to rotate. When the low-voltage motors are used, they are often necessary to be protected, so protective devices are required to protect the low-voltage motors. When the low-voltage motors are installed inside the protective devices, the existing protective devices generally lack adjustment structures and cannot be adjusted according to the required installation position of the low-voltage motors, which makes it inconvenient to install the low-voltage motors. When the low-voltage motors themselves are damaged, it is inconvenient to remove the low-voltage motors from the protective devices, which makes it inconvenient to repair the low-voltage motors. The existing protective devices all adopt a closed structure, which will affect the heat dissipation of the low-voltage motors. The accumulation of heat will cause the power of the low-voltage motors to decrease, affecting the normal use of the equipment. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the problems existing in the prior art, the utility model provides a protective device for a low-voltage motor to solve the technical problems mentioned in the background technology.

[0005] (II) Technical solution

[0006] To achieve the above object, the utility model provides the following technical solutions: a protective device for a low-voltage motor, comprising a base plate, a mounting structure movably provided on the upper end of the base plate, the mounting structure comprising a mounting frame, a movable plate and a movable block, a support sheet fixedly provided on the side end of the base plate, a side plate detachably provided between two of the support sheets, the side plate and the support sheet being bolted together, and different low-voltage motors are mounted through the mounting structure;

[0007] An installation frame is detachably provided between the two support sheets, and rotating leaves are provided on the installation frame. There are multiple rotating leaves, and a top plate is detachably provided on the support sheet. The top plate is threadedly connected to the support sheet, so that the top of the protective device can be easily closed through the top plate.

[0008] The utility model is further configured as follows: two mounting frames are provided, the movable plate is provided between the two mounting frames, the movable block is provided on the movable plate, the mounting frame is movably provided on the bottom plate, and a mounting sheet is fixedly provided on the bottom plate, so as to facilitate the movement of the mounting frame on the bottom plate.

[0009] The utility model is further configured such that the mounting frame is arranged between two mounting plates, a sliding rod is detachably arranged between the two mounting plates, threads are arranged at both ends of the sliding rod, extension plates are arranged at both ends of the mounting frame, the sliding rod passes through the extension plates, and is slidably connected to the extension plates, thereby driving the mounting frame to rotate through the sliding cooperation between the extension plates and the sliding rod.

[0010] The utility model is further configured such that sliding pieces are fixedly provided at both ends of the movable plate, a sliding groove cooperating with the sliding piece is provided on the mounting frame, the sliding piece and the sliding groove are slidingly connected, limiting holes are provided on the sliding piece and the sliding groove, and a plurality of movable blocks are provided, thereby facilitating the sliding of the movable plate on the mounting frame.

[0011] The utility model is further configured as follows: a threaded rod is provided on the movable plate, and a plurality of the movable plate and the threaded rod are provided. The movable plate and the threaded rod are rotatably connected via a bearing, the threaded rod passes through the movable block and is threadedly connected to the movable block, and two threads with opposite rotation directions are provided on the threaded rod, thereby facilitating the two movable blocks to approach or move away from each other.

[0012] The utility model is further configured as follows: a mounting hole is provided on the moving block, a thread is provided in the mounting hole, a plurality of limiting holes are provided, a thread is provided in the limiting hole, the limiting hole provided on the sliding groove is bolted to the limiting hole provided on the sliding sheet, thereby facilitating fixing the position of the moving plate.

[0013] The utility model is further configured such that limit blocks are fixedly provided at both ends of the support plate, the mounting frame is arranged between the two limit blocks, a plurality of rotating leaves are arranged, and rotating columns are arranged at both ends of the rotating leaves. The rotating columns are rotatably connected to the mounting frame through bearings, thereby facilitating the rotation of the rotating leaves and facilitating air exchange between the inside of the protective device and the outside world.

[0014] The utility model is further configured such that an inclined plate is fixedly arranged on the top plate, a heat dissipation hole is opened on the top plate, a plurality of heat dissipation holes are opened, a support column is fixedly arranged between the inclined plate and the top plate, and a through hole is opened on the side plate, so that the upper end of the low-voltage motor is protected by the cooperation of the inclined plate and the support column.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a protective device for a low-voltage motor, which has the following beneficial effects:

[0017] 1. The utility model provides a mounting structure. When installing different types of low-voltage motors, the distance between the two moving plates is changed according to the length of the low-voltage motor through the sliding cooperation of the moving grooves provided on the mounting frame and the sliding sheets at both ends of the moving plate, so that the distance between the two moving plates is the same as the length of the low-voltage motor. The threaded rod on the moving plate is rotated to drive the two moving blocks to move closer to or away from each other, so that the distance between the two moving blocks is the same as the width of the low-voltage motor frame. The installation of the low-voltage motor is completed by cooperating the mounting holes provided on the moving blocks with the holes provided on the low-voltage motor, thereby facilitating the use of the entire protective device for different low-voltage motors and improving the applicability of the protective device.

[0018] 2. The utility model provides support plates at both ends of the bottom plate, a limit block between the two support plates, a detachable mounting frame between the two limit blocks, a rotating blade on the mounting frame, and a rotating column provided on the rotating blade is connected to the mounting frame through rotation. When the low-voltage motor needs to dissipate a large amount of heat, the rotating blade is rotated to make the rotating blades parallel to each other, thereby facilitating the air in the external environment to enter the protective device, and will not affect the heat dissipation of the external motor, thereby facilitating the normal use of the motor.

[0019] 3. The utility model provides a mounting frame that can be movably mounted on the bottom plate. When the low-voltage motor needs to be repaired, the side plate is removed from the support plate, and the mounting frame is pulled through the sliding connection between the extension plate provided on the mounting frame and the slide rod to move the mounting frame along the slide rod, thereby pulling the low-voltage motor and the mounting structure out of the protective device, thereby facilitating the repair of the low-voltage motor and facilitating the use of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of a protective device for a low-voltage motor;

[0021] Figure 2 It is a schematic diagram of the matching structure of the side plate and the bottom plate of a protective device for a low-voltage motor;

[0022] Figure 3 It is a schematic diagram of the matching structure of a base plate and a mounting structure of a protective device for a low-voltage motor;

[0023] Figure 4 It is a schematic diagram of the matching structure of a mounting frame and a base plate of a protective device for a low-voltage motor;

[0024] Figure 5 The present invention is a schematic diagram of the matching structure of a mounting frame and a movable plate of a protective device for a low-voltage motor.

[0025] In the figure: 1, bottom plate; 2, mounting frame; 3, moving plate; 4, moving block; 5, supporting plate; 6, side plate; 7, mounting frame; 8, rotating blade; 9, top plate; 10, mounting plate; 11, sliding rod; 12, extension plate; 13, sliding plate; 14, sliding groove; 15, limiting hole; 16, threaded rod; 17, mounting hole; 18, limiting block; 19, rotating column; 20, inclined plate; 21, heat dissipation hole; 22, supporting column. DETAILED DESCRIPTION

[0026] 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 utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0028] In the present invention, unless otherwise specified, directions such as "up" and "down" are usually used in reference to the directions shown in the drawings, or in reference to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are usually used in reference to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0029] See also Figure 1-5 , a protective device for a low-voltage motor, comprising a base plate 1, a mounting structure movably disposed on the upper end of the base plate 1, the mounting structure comprising a mounting frame 2, a moving plate 3 and a moving block 4, a supporting sheet 5 fixedly disposed on the side end of the base plate 1, a side plate 6 detachably disposed between the two supporting sheets 5, and the side plate 6 and the supporting sheet 5 are bolted together;

[0030] A mounting frame 7 is detachably provided between the two support sheets 5, a rotating blade 8 is provided on the mounting frame 7, and a plurality of rotating blades 8 are provided. A top plate 9 is detachably provided on the support sheet 5, and the top plate 9 is threadedly connected to the support sheet 5. An inclined plate 20 is fixedly provided on the top plate 9, and a heat dissipation hole 21 is provided on the top plate 9, and a plurality of heat dissipation holes 21 are provided. A support column 22 is fixedly provided between the inclined plate 20 and the top plate 9, and a through hole is provided on the side plate 6.

[0031] In this embodiment, the installation structure facilitates installation of different low-voltage motors on the base plate 1, the baffle is used to close the side of the base plate 1, and the through hole set on the side plate 6 facilitates the motor shaft of the motor to extend out of the protective structure.

[0032] More specifically, when the low-voltage motor is installed in an external environment and used, rainwater slides down along the inclined plate 20 through the inclined plate 20 provided on the top plate 9, and will not cause damage to the low-voltage motor. At the same time, a triangular structure is formed between the inclined plate 20 and the support column 22 to protect the top of the low-voltage motor and prevent damage to the low-voltage motor.

[0033] See also Figure 1-Figure 5 As an implementation method for installing and repairing a low-voltage motor: two mounting frames 2 are provided, a moving plate 3 is provided between the two mounting frames 2, a moving block 4 is provided on the moving plate 3, the mounting frame 2 is movably provided on the bottom plate 1, a mounting piece 10 is fixedly provided on the bottom plate 1, the mounting frame 2 is provided between the two mounting pieces 10, a sliding rod 11 is detachably provided between the two mounting pieces 10, threads are provided at both ends of the sliding rod 11, extension pieces 12 are provided at both ends of the mounting frame 2, the sliding rod 11 passes through the extension piece 12, and is slidably connected with the extension piece 12, sliding pieces 13 are fixedly provided at both ends of the moving plate 3, and a mounting frame 2 is provided with a sliding piece 13 that matches the sliding piece 13 The sliding groove 14 is connected with the sliding sheet 13, and the sliding sheet 13 is slidably connected with the sliding groove 14. The sliding sheet 13 and the sliding groove 14 are both provided with limiting holes 15. The moving block 4 is provided with a plurality of them. The moving plate 3 is provided with a threaded rod 16. The moving plate 3 and the threaded rod 16 are both provided with a plurality of them. The moving plate 3 and the threaded rod 16 are rotatably connected through a bearing. The threaded rod 16 passes through the moving block 4 and is threadedly connected with the moving block 4. The moving block 4 is provided with a mounting hole 17, and the mounting hole 17 is provided with a thread. The limiting holes 15 are provided with a plurality of them, and the limiting holes 15 provided on the sliding groove 14 are bolted to the limiting holes 15 provided on the sliding sheet 13.

[0034] Specifically, when installing different types of low-voltage motors, according to the length of the low-voltage motor, the distance between the two moving plates 3 is changed by sliding cooperation between the moving grooves provided on the mounting frame 2 and the sliding sheets 13 at both ends of the moving plate 3, and the bolts are inserted into the limiting holes 15 to fix the positions of the two moving plates 3, so that the distance between the two moving plates 3 is the same as the length of the low-voltage motor, and the threaded rod 16 on the moving plate 3 is rotated, and the two moving blocks 4 are driven to move closer to or closer to each other through two threads with opposite rotation directions provided on the threaded rod 16 and the threaded connection with the moving block 4. Keep away from each other, so that the distance between the two moving blocks 4 is the same as the width of the low-voltage electric frame, and the mounting holes 17 opened on the moving blocks 4 are matched with the holes opened on the low-voltage motor, and bolts are inserted to complete the fixation of the low-voltage motor. When the low-voltage motor is inspected and repaired, the side plate 6 is removed from the supporting plate 5, and the connection between the low-voltage motor and the outside world is disconnected. Through the sliding connection between the extension plate 12 and the slide rod 11 provided on the mounting frame 2, the mounting frame 2 is pulled to move along the slide rod 11, so that the low-voltage motor and the mounting structure are pulled out of the protective device, thereby facilitating the inspection and repair of the low-voltage motor.

[0035] Please refer to Figure 1-5 As an implementation method of heat dissipation of the protective device: an inclined plate 20 is fixedly arranged on the top plate 9, a heat dissipation hole 21 is opened on the top plate 9, and a plurality of heat dissipation holes 21 are opened, a support column 22 is fixedly arranged between the inclined plate 20 and the top plate 9, and a through hole is opened on the side plate 6;

[0036] Specifically, when the low-voltage motor needs to dissipate heat, the rotating column 19 set on the rotating blade 8 is rotatably connected with the mounting frame 7. When the low-voltage motor needs to dissipate a large amount of heat, the rotating blade 8 is rotated so that the rotating blades 8 are parallel to each other, thereby facilitating the air in the external environment to enter the protective device. At the same time, heat is dissipated through the heat dissipation holes 21 opened on the top plate 9, thereby facilitating the use of the low-voltage motor.

[0037] In summary, when used as a whole:

[0038] When installing different types of low-voltage motors, according to the length of the low-voltage motor, the distance between the two moving plates 3 is changed by sliding cooperation between the moving grooves opened on the mounting frame 2 and the sliding sheets 13 at both ends of the moving plates 3, and the bolts are inserted into the limiting holes 15 to fix the positions of the two moving plates 3, so that the distance between the two moving plates 3 is the same as the length of the low-voltage motor, and the threaded rod 16 on the moving plate 3 is rotated. Through the two threads with opposite rotation directions set on the threaded rod 16 and the threaded connection with the moving block 4, the threaded rod 16 is rotated to drive the two moving blocks 4 to move closer to or away from each other, so that the distance between the two moving blocks 4 is the same as the width of the low-voltage electric frame, and the mounting holes 17 opened on the moving blocks 4 cooperate with the holes opened on the low-voltage motor, and the bolts are inserted to complete the fixation of the low-voltage motor.

[0039] When the low-voltage motor needs to dissipate heat, the rotating column 19 arranged on the rotating blade 8 is rotatably connected with the mounting frame 7. When the low-voltage motor needs to dissipate a large amount of heat, the rotating blade 8 is rotated to make the rotating blades 8 parallel to each other, thereby facilitating the air in the external environment to enter the protective device. At the same time, heat is dissipated through the heat dissipation holes 21 opened on the top plate 9, thereby facilitating the use of the low-voltage motor.

[0040] When the low-voltage motor is to be repaired, the side plate 6 is removed from the support plate 5, the connection between the low-voltage motor and the outside world is disconnected, and the mounting frame 2 is pulled through the sliding connection between the extension plate 12 provided on the mounting frame 2 and the slide rod 11, so that the mounting frame 2 moves along the slide rod 11, thereby pulling the low-voltage motor and the mounting structure out of the protective device, thereby facilitating the repair of the low-voltage motor.

[0041] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A protective device for a low voltage motor, comprising a base plate (1), characterized in that: The upper end of the base plate (1) is movably provided with a mounting structure, the mounting structure comprising a mounting frame (2), a movable plate (3) and a movable block (4); a supporting sheet (5) is fixedly provided at the side end of the base plate (1); a side plate (6) is detachably provided between two supporting sheets (5); the side plate (6) and the supporting sheet (5) are connected by bolts; A mounting frame (7) is detachably provided between the two support sheets (5), a rotating blade (8) is provided on the mounting frame (7), a plurality of rotating blades (8) are provided, a top plate (9) is detachably provided on the support sheet (5), and the top plate (9) is threadedly connected to the support sheet (5).

2. A protective device for a low-voltage motor according to claim 1, characterized in that: Two mounting frames (2) are provided, the movable plate (3) is provided between the two mounting frames (2), the movable block (4) is provided on the movable plate (3), the mounting frame (2) is movably provided on the bottom plate (1), and a mounting plate (10) is fixedly provided on the bottom plate (1).

3. A protective device for a low voltage motor according to claim 2, characterized in that: The mounting frame (2) is arranged between two mounting plates (10), a slide rod (11) is detachably arranged between the two mounting plates (10), both ends of the slide rod (11) are provided with threads, and both ends of the mounting frame (2) are provided with extension plates (12), the slide rod (11) passes through the extension plates (12), and is slidably connected to the extension plates (12).

4. A protective device for a low voltage motor according to claim 2, characterized in that: Sliding sheets (13) are fixedly provided at both ends of the movable plate (3); a sliding groove (14) cooperating with the sliding sheet (13) is provided on the mounting frame (2); the sliding sheet (13) and the sliding groove (14) are slidably connected; both the sliding sheet (13) and the sliding groove (14) are provided with limiting holes (15); and a plurality of movable blocks (4) are provided.

5. A protective device for a low voltage motor according to claim 2, characterized in that: The movable plate (3) is provided with a threaded rod (16), and a plurality of the movable plate (3) and the threaded rod (16) are provided. The movable plate (3) and the threaded rod (16) are rotatably connected via a bearing, and the threaded rod (16) passes through the movable block (4) and is threadedly connected to the movable block (4).

6. A protective device for a low voltage motor according to claim 4, characterized in that: The movable block (4) is provided with a mounting hole (17), a thread is provided in the mounting hole (17), a plurality of limiting holes (15) are provided, a thread is provided in the limiting hole (15), and the limiting hole (15) provided on the sliding groove (14) is bolted to the limiting hole (15) provided on the sliding sheet (13).

7. A protective device for a low voltage motor according to claim 1, characterized in that: Limit blocks (18) are fixedly provided at both ends of the support sheet (5); the mounting frame (7) is arranged between the two limit blocks (18); a plurality of rotating leaves (8) are provided; rotating columns (19) are provided at both ends of the rotating leaves (8); and the rotating columns (19) are rotatably connected to the mounting frame (7) via a bearing.

8. The protective device for a low voltage motor according to claim 1, characterized in that: An inclined plate (20) is fixedly arranged on the top plate (9), a heat dissipation hole (21) is provided on the top plate (9), a plurality of heat dissipation holes (21) are provided, a support column (22) is fixedly arranged between the inclined plate (20) and the top plate (9), and a through hole is provided on the side plate (6).

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