A coaxial direct-connected AC explosion-proof motor

Abstract

The invention discloses a coaxial direct-connected AC explosion-proof motor, which relates to the technical field of explosion-proof motors, comprising an explosion-proof shell and a sealing device, wherein a disassembly rod is fixedly installed inside the explosion-proof shell, a disassembly frame is slidably installed on the circumferential surface of the disassembly rod, a calibration frame is fixedly installed on the inner wall of the disassembly frame, a motor body is arranged inside the explosion-proof shell, wherein the sealing device comprises a sealing door, a sealing plate, a protective door, a protective frame, a limiting rod, a protective hole and a protective rod, after the limiting of the sealing plate is released, the sealing door and the protective door are manually pulled to move away from each other, the sealing door and the protective door move away from each other to release the sealing of the explosion-proof shell, the calibration frame moves and drives the motor body to move and eject the motor body, the sealing door is slidably installed on the front side of the explosion-proof shell, and the protective rod is used to prevent the motor body from accidentally loosening due to human error, so as to prevent the motor body from loosening during operation, thereby maintaining the overall stability of the equipment.

Description

Technical Field

[0001] The present invention relates to the technical field of explosion-proof motors, and particularly to a coaxial direct-connected alternating current explosion-proof motor. Background Art

[0002] A coaxial direct-connected alternating current explosion-proof motor generally consists of an explosion-proof housing, a rotor, a coaxial coupling, an electrical connection box, and other components.

[0003] The patent with the patent publication number CN220022496U relates to a coaxial direct-connected alternating current explosion-proof motor, including a support base. Both sides of the top of the support base are provided with seismic mechanisms. The top of the support base is provided with an explosion-proof motor main body. The front side of the explosion-proof motor main body is provided with a driving connecting shaft. The front side of the explosion-proof motor main body is welded with a connecting shell. The surface of the driving connecting shaft is provided with a connecting mechanism. By adopting the connecting shell, the driving connecting shaft, the rotating ring, the movable mounting sleeve, the threaded sleeve, the limiting plate, the movable sleeve, the supporting threaded rod, the positioning connecting plate, and the mounting plate, the position of the mounting plate can be conveniently adjusted, and the position of the mounting plate can be adjusted according to different situations. By adopting the fixed block, the positioning support rod, the damper, the sliding block, the buffer spring, the rotating connecting plate, and the positioning rod, the seismic effect can be conveniently achieved, and the explosion-proof motor main body can be effectively prevented from vibrating violently.

[0004] In the above patent, by adopting the fixed block, the positioning support rod, the damper, the sliding block, the buffer spring, the rotating connecting plate, and the positioning rod, the seismic effect can be conveniently achieved, and the explosion-proof motor main body can be effectively prevented from vibrating violently. However, it is difficult to prevent accidental loosening caused by human misoperation. The loosening of the motor body will make the motor operation unstable, increasing the risk of equipment failure or fire. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a coaxial direct-connected alternating current explosion-proof motor, which solves the problems raised in the above background art.

[0006] To achieve the above object, the present invention is realized through the following technical solutions: A coaxial direct-connected AC explosion-proof motor includes an explosion-proof shell and also includes a sealing device. Among them, a disassembly rod is fixedly installed inside the explosion-proof shell, and a disassembly frame is slidably installed on the circumferential surface of the disassembly rod. A calibration frame is fixedly installed on the inner wall of the disassembly frame. An electric motor body is arranged inside the explosion-proof shell. Among them, the sealing device includes a sealing door, a sealing plate, a protection door, a protection frame, a limiting rod, a protection hole, and a protection rod. After the limit of the sealing plate is released, manually pull the sealing door and the protection door to move away from each other. The movement of the sealing door and the protection door away from each other releases the sealing of the explosion-proof shell. The movement of the calibration frame drives the movement of the electric motor body to eject the electric motor body. The sealing door is slidably installed on the front side of the explosion-proof shell. The sealing plate is fixedly installed on the side of the sealing door away from the disassembly rod. The protection door is slidably installed on the front side of the explosion-proof shell. The protection frame is fixedly installed on the side of the protection door away from the disassembly rod. The limiting rod slidably penetrates the inner and outer walls of the protection frame. The protection hole is opened on the circumferential surface of the limiting rod. The protection rod is slidably installed on the side of the protection frame away from the disassembly frame. A sealing hole is opened on the surface of the sealing plate.

[0007] A first spring is arranged between the disassembly rod and the disassembly frame. The first spring can drive the disassembly frame to reset. The electric motor body contacts the inner wall of the calibration frame. The limiting rod contacts the inner wall of the sealing hole.

[0008] According to the above technical solution, a second spring is arranged between the protection frame and the limiting rod. The second spring can drive the limiting rod to reset. The protection rod contacts the inner wall of the protection hole. The sealing door contacts the protection door.

[0009] According to the above technical solution, the supporting device includes a T-shaped plate, a sliding rod, a hollow sliding frame, a placing rod, a T-shaped block, a placing frame, and a pressing plate. The T-shaped block moves downward under the extrusion of the pressing plate. The downward movement of the T-shaped block contacts the inner wall of the placing frame. The contact between the T-shaped block and the inner wall of the placing frame further assists in fixing the electric motor body. The T-shaped plate is fixedly installed on the top of the explosion-proof shell. The sliding rod slidably penetrates the front and rear walls of the T-shaped plate. The hollow sliding frame is fixedly installed at both ends of the sliding rod. The pressing plate is fixedly installed on the side of the hollow sliding frame away from the sealing plate. The placing rod is fixedly installed on the top of the explosion-proof shell. The T-shaped block is slidably installed on the circumferential surface of the placing rod. The placing frame is fixedly installed on the circumferential surface of the electric motor body.

[0010] According to the above technical solution, a third spring is arranged between the T-shaped plate and the sliding rod. The third spring can drive the sliding rod to reset. The side of the hollow sliding frame close to the sealing plate is set as an inclined surface. The hollow sliding frame contacts the sealing door.

[0011] According to the above technical solution, a fourth spring is provided between the placement rod and the T-shaped block. The fourth spring can drive the T-shaped block to reset. One side of the extrusion plate close to the placement rod is set as an inclined surface, and the extrusion plate contacts the T-shaped block.

[0012] According to the above technical solution, the protection device includes a linkage rod, a U-shaped rod, a hollow frame, a stabilizing rod, a limiting frame and a driving button. The downward movement of the hollow frame drives the downward movement of the stabilizing rod. The downward movement of the stabilizing rod presses the driving button. The driving button is pressed by the stabilizing rod to drive the motor body to start working. The linkage rod is fixedly installed at the bottom of the T-shaped block. The U-shaped rod slidably penetrates through the top of the explosion-proof shell. The hollow frame is slidably installed on one side of the U-shaped rod close to the motor body. The stabilizing rod is fixedly installed at the bottom of the hollow frame. The limiting frame is fixedly installed on the inner wall top of the explosion-proof shell. The driving button is fixedly installed on the circumferential surface of the motor body, and the driving button is electrically connected to the motor body.

[0013] According to the above technical solution, a return spring is provided between the U-shaped rod and the explosion-proof shell. The return spring can drive the U-shaped rod to reset. A fifth spring is provided between the hollow frame and the U-shaped rod. One end of the fifth spring is arranged on the surface of the U-shaped rod and the other end is arranged on the inner wall of the hollow frame. The fifth spring can drive the hollow frame to reset. One end of the stabilizing rod close to the T-shaped block is set as an inclined surface.

[0014] The present invention provides a coaxial direct-connected AC explosion-proof motor, which has the following beneficial effects:

[0015] (1) For this coaxial direct-connected AC explosion-proof motor, when the motor body needs to be disassembled and repaired, repeat the steps during installation. First, manually pull the protection rod to move. The protection rod moves away from contact with the protection hole and releases the limit on the limiting rod. The protection rod can prevent the motor body from accidentally loosening due to human misoperation, and can prevent loosening during the operation of the motor body, thereby maintaining the overall stability of the equipment and reducing the risk of mechanical failures or accidents caused by the loosening of the motor body. By moving the disassembly frame in the direction close to the sealing door, the calibration frame is driven to move. The movement of the calibration frame drives the motor body to move and eject the motor body. The motor body can be quickly disassembled and installed, so that when the motor fails or is overhauled, the motor body can be quickly disassembled and installed to speed up the fault repair process and reduce the interruption time of equipment operation.

[0016] (2) For this coaxial direct-connected AC explosion-proof motor, when the T-shaped block is extruded by the extrusion plate and moves downward, the T-shaped block presses the fourth spring downward when it moves downward. The fourth spring deforms and stores energy under the extrusion of the T-shaped block. At the same time, when the T-shaped block moves downward and contacts the inner wall of the placement frame, the contact between the T-shaped block and the inner wall of the placement frame further assists in fixing the motor body. The design of auxiliary fixing can prevent the motor body from shifting during installation, and through secondary fixing, the vibration and displacement of the motor body during operation can be effectively reduced, providing additional stability and avoiding damage or performance degradation caused by vibration or external forces.

[0017] (3) For this coaxial direct-connected AC explosion-proof motor, when the hollow frame disengages from the contact with the limiting frame, the hollow frame is no longer limited by the limiting frame. When the hollow frame moves downward, it drives the stabilizing rod to move downward. The stabilizing rod moves downward to press the drive button, and the drive button is pressed by the stabilizing rod to drive the motor body to start working. Starting the motor only after detecting the stable installation of the motor body avoids startup failure or abnormality caused by the offset of the installation position. And unstable installation will cause excessive stress on components such as the bearings or couplings of the motor body, affecting the normal operation of the equipment. By installing stably, the stress on the motor body and its related components can be reduced, the failure rate of the equipment can be decreased, and thus the service life of the motor body can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the internal structure of the explosion-proof shell of the present invention;

[0020] Figure 3 is of the present invention Figure 2 is an enlarged schematic diagram of the structure of part A in the present invention;

[0021] Figure 4 is of the present invention Figure 2 is an enlarged schematic diagram of the structure of part B in the present invention;

[0022] Figure 5 is a schematic diagram of the position structure of the sealing door and the sealing plate of the present invention;

[0023] Figure 6 is of the present invention Figure 5 is an enlarged schematic diagram of the structure of part C in the present invention;

[0024] Figure 7 is a schematic diagram of the position structure of the T-shaped plate and the sliding rod of the present invention.

[0025] In the figure: 1, explosion-proof shell; 2, disassembly rod; 3, disassembly frame; 4, calibration frame; 5, motor body; 6, sealing door; 7, sealing plate; 8, protection door; 9, protection frame; 10, limiting rod; 11, protection hole; 12, protection rod; 131, T-shaped plate; 132, sliding rod; 133, hollow sliding frame; 134, placing rod; 135, T-shaped block; 136, placing frame; 137, pressing plate; 141, linkage rod; 142, U-shaped rod; 143, hollow frame; 144, stabilizing rod; 145, limiting frame; 146, driving button; 147, return spring. Detailed implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 3 , an embodiment of the present invention is: a coaxial direct-connected AC explosion-proof motor, including an explosion-proof shell 1, and further including a sealing device. Among them, a disassembly rod 2 is fixedly installed inside the explosion-proof shell 1, a disassembly frame 3 is slidably installed on the circumferential surface of the disassembly rod 2, a calibration frame 4 is fixedly installed on the inner wall of the disassembly frame 3, and a motor body 5 is arranged inside the explosion-proof shell 1. Among them, the sealing device includes a sealing door 6, a sealing plate 7, a protection door 8, a protection frame 9, a limiting rod 10, a protection hole 11 and a protection rod 12. After the limit of the sealing plate 7 is released, manually pull the sealing door 6 and the protection door 8 to move away from each other. The sealing door 6 is slidably installed on the front side of the explosion-proof shell 1, the sealing plate 7 is fixedly installed on the side of the sealing door 6 away from the disassembly rod 2, the protection door 8 is slidably installed on the front side of the explosion-proof shell 1, the protection frame 9 is fixedly installed on the side of the protection door 8 away from the disassembly rod 2, the limiting rod 10 slidably penetrates the inner and outer walls of the protection frame 9, the protection hole 11 is opened on the circumferential surface of the limiting rod 10, and the protection rod 12 is slidably installed on the side of the protection frame 9 away from the disassembly frame 3. A sealing hole is opened on the surface of the sealing plate 7. The protection rod 12 can prevent the motor body 5 from accidentally loosening due to human misoperation, and can prevent loosening during the operation of the motor body 5, thereby maintaining the overall stability of the equipment. The motor body 5 can be quickly disassembled and installed, so that when the motor body 5 fails or is overhauled, the motor body 5 can be quickly disassembled and installed to speed up the fault repair process and reduce the interruption time of the equipment operation.

[0028] A first spring is arranged between the disassembly rod 2 and the disassembly frame 3, and the disassembly frame 3 can be driven to reset by the first spring. The motor body 5 is in contact with the inner wall of the calibration frame 4, and the limiting rod 10 is in contact with the inner wall of the sealing hole.

[0029] A second spring is provided between the protection frame 9 and the limit rod 10, and the limit rod 10 can be driven to reset by the second spring. The protection rod 12 contacts the inner wall of the protection hole 11, and the sealing door 6 contacts the protection door 8.

[0030] During the operation of this embodiment: When the motor body 5 needs to be installed, first manually pull the protection rod 12 to move away from the limit rod 10. The protection rod 12 moves away from the limit rod 10 and disengages from the contact with the protection hole 11, releasing the limit on the limit rod 10. After the limit on the limit rod 10 is released, manually pull the limit rod 10 to move away from the explosion-proof shell 1. The limit rod 10 moves and compresses the second spring. The second spring deforms and stores energy under the extrusion of the limit rod 10. At the same time, the limit rod 10 moves away from the explosion-proof shell 1 and disengages from the contact with the sealing hole. The limit rod 10 disengages from the contact with the sealing hole and releases the limit on the sealing plate 7. After the limit on the sealing plate 7 is released, manually pull the sealing door 6 and the protection door 8 to move away from each other. The sealing door 6 and the protection door 8 move away from each other to release the seal of the explosion-proof shell 1. After the seal of the explosion-proof shell 1 is released, align the motor body 5 with the calibration frame 4 and place it into the explosion-proof shell 1. The explosion-proof motor is placed into the explosion-proof shell 1 and contacts the inner wall of the calibration frame 4, squeezing the disassembly frame 3. The disassembly frame 3 is squeezed by the motor body 5 and moves away from the sealing door 6. The disassembly frame 3 moves away from the sealing door 6 and compresses the first spring. The first spring deforms and stores energy under the extrusion of the disassembly frame 3. After the installation of the motor body 5 is completed, manually push the sealing door 6 and the protection door 8 to move towards each other. The sealing door 6 and the protection door 8 move towards each other, causing the limit rod 10 to move towards the motor body 5 under the elastic force of the second spring. The limit rod 10 moves towards the motor body 5 and contacts the sealing hole, restoring the limit on the sealing plate 7. When the limit rod 10 restores the limit on the sealing plate 7, the sealing door 6 and the protection door 8 restore the seal of the explosion-proof shell 1 and complete the installation of the motor body 5. At the same time, when the motor body 5 needs to be disassembled and repaired, repeat the steps during installation. First, manually pull the protection rod 12 to move away from the limit rod 10. The protection rod 12 moves away from the limit rod 10 and disengages from the contact with the protection hole 11, releasing the limit on the limit rod 10. After the limit on the limit rod 10 is released, manually pull the limit rod 10 to move away from the explosion-proof shell 1. The limit rod 10 moves away from the explosion-proof shell 1 and disengages from the contact with the sealing hole. The limit rod 10 disengages from the contact with the sealing hole and releases the limit on the sealing plate 7. After the limit on the sealing plate 7 is released, manually pull the sealing door 6 and the protection door 8 to move away from each other. The sealing door 6 and the protection door 8 move away from each other to release the seal of the explosion-proof shell 1. At the same time, the sealing door 6 and the protection door 8 move away from each other to release the limit on the motor body 5. After the limit on the motor body 5 is released, the disassembly frame 3 moves towards the sealing door 6 under the elastic force of the first spring. The disassembly frame 3 moves towards the sealing door 6 and drives the calibration frame 4 to move. The calibration frame 4 moves and drives the motor body 5 to move, ejecting the motor body 5.

[0031] Please refer to Figures 1 - 7, on the basis of the above embodiments, in another embodiment of the present invention, a support device and a protection device are further included. The support device includes a T-shaped plate 131, a sliding rod 132, a hollow sliding frame 133, a placement rod 134, a T-shaped block 135, a placement frame 136, and a pressing plate 137. The T-shaped plate 131 is fixedly installed on the top of the explosion-proof shell 1. The sliding rod 132 slidably penetrates the front and rear walls of the T-shaped plate 131. The hollow sliding frame 133 is fixedly installed at both ends of the sliding rod 132. The pressing plate 137 is fixedly installed on the side of the hollow sliding frame 133 away from the sealing plate 7. The placement rod 134 is fixedly installed on the top of the explosion-proof shell 1. The T-shaped block 135 is slidably installed on the circumferential surface of the placement rod 134. The placement frame 136 is fixedly installed on the circumferential surface of the motor body 5. Through secondary fixation, the vibration and displacement of the motor body 5 during operation can be effectively reduced, providing additional stability and avoiding damage or performance degradation caused by vibration or external forces.

[0032] A third spring is provided between the T-shaped plate 131 and the sliding rod 132. Through the third spring, the sliding rod 132 can be driven to reset. The side of the hollow sliding frame 133 close to the sealing plate 7 is set as an inclined surface, and the hollow sliding frame 133 contacts the sealing door 6.

[0033] A fourth spring is provided between the placement rod 134 and the T-shaped block 135. Through the fourth spring, the T-shaped block 135 can be driven to reset. The side of the pressing plate 137 close to the placement rod 134 is set as an inclined surface, and the pressing plate 137 contacts the T-shaped block 135.

[0034] The protection device includes a linkage rod 141, a U-shaped rod 142, a hollow frame 143, a stabilizing rod 144, a limiting frame 145, and a driving button 146. The linkage rod 141 is fixedly installed at the bottom of the T-shaped block 135. The U-shaped rod 142 slidably penetrates the top of the explosion-proof shell 1. The hollow frame 143 is slidably installed on the side of the U-shaped rod 142 close to the motor body 5. The stabilizing rod 144 is fixedly installed at the bottom of the hollow frame 143. The limiting frame 145 is fixedly installed at the top of the inner wall of the explosion-proof shell 1. The driving button 146 is fixedly installed on the circumferential surface of the motor body 5. The driving button 146 is electrically connected to the motor body 5. By detecting that the motor body 5 is stably installed before starting the motor body 5, starting failure or abnormality caused by the offset of the installation position is avoided.

[0035] A return spring 147 is provided between the U-shaped rod 142 and the explosion-proof shell 1. Through the return spring 147, the U-shaped rod 142 can be driven to reset. A fifth spring is provided between the hollow frame 143 and the U-shaped rod 142. One end of the fifth spring is arranged on the surface of the U-shaped rod 142 and the other end is arranged on the inner wall of the hollow frame 143. Through the fifth spring, the hollow frame 143 can be driven to reset. The end of the stabilizing rod 144 close to the T-shaped block 135 is set as an inclined surface.

[0036] During the operation of this embodiment: The sealing door 6 and the protection door 8 move towards each other and contact the hollow sliding frame 133 and squeeze the hollow sliding frame 133. The hollow sliding frame 133 moves towards the placing rod 134 under the extrusion of the sealing door 6 and the protection door 8. The movement of the hollow sliding frame 133 towards the placing rod 134 drives the sliding rod 132 to move. The movement of the sliding rod 132 squeezes the third spring. The third spring deforms and stores energy under the extrusion of the sliding rod 132. At the same time, the movement of the sliding rod 132 towards the placing rod 134 drives the extrusion plate 137 to move. The movement of the extrusion plate 137 contacts the T-shaped block 135 and squeezes the T-shaped block 135. The T-shaped block 135 moves downward under the extrusion of the extrusion plate 137. The downward movement of the T-shaped block 135 squeezes the fourth spring. The fourth spring deforms and stores energy under the extrusion of the T-shaped block 135. At the same time, the T-shaped block 135 moves downward and contacts the inner wall of the placing frame 136. The contact between the T-shaped block 135 and the inner wall of the placing frame 136 further assists in fixing the motor body 5.

[0037] The T-shaped block 135 moves downward under the extrusion of the extrusion plate 137. The downward movement of the T-shaped block 135 drives the linkage rod 141 to move downward. The downward movement of the linkage rod 141 contacts the stabilizing rod 144 and squeezes the stabilizing rod 144. The stabilizing rod 144 moves away from the extrusion plate 137 under the extrusion of the linkage rod 141. The movement of the stabilizing rod 144 away from the extrusion plate 137 drives the hollow frame 143 to move away from the extrusion plate 137. The movement of the hollow frame 143 away from the extrusion plate 137 squeezes the fifth spring. The fifth spring deforms and stores energy under the extrusion of the hollow frame 143. At the same time, the hollow frame 143 moves away from the extrusion plate 137 and disengages from the contact with the limiting frame 145. When the hollow frame 143 disengages from the contact with the limiting frame 145, the hollow frame 143 is no longer limited by the limiting frame 145. At this time, manually press the U-shaped rod 142 downward. The downward movement of the U-shaped rod 142 squeezes the return spring 147. The return spring 147 deforms and stores energy under the extrusion of the U-shaped rod 142. At the same time, the downward movement of the U-shaped rod 142 drives the hollow frame 143 to move downward. The downward movement of the hollow frame 143 drives the stabilizing rod 144 to move downward. The downward movement of the stabilizing rod 144 presses the drive button 146. The drive button 146 is pressed by the stabilizing rod 144 to drive the motor body 5 to start operating.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and deformations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A coaxial direct-connected AC explosion-proof motor, comprising an explosion-proof housing (1), characterized in that: It also includes sealing devices, supporting devices and protective devices; A disassembly rod (2) is fixedly installed inside the explosion-proof shell (1), a disassembly frame (3) is slidably installed on the circumferential surface of the disassembly rod (2), a calibration frame (4) is fixedly installed on the inner wall of the disassembly frame (3), and a motor body (5) is arranged inside the explosion-proof shell (1); The sealing device comprises a sealing door (6), a sealing plate (7), a protective door (8), a protective frame (9), a limiting rod (10), a protective hole (11) and a protective rod (12); the sealing door (6) is slidably mounted on the front side of the explosion-proof shell (1); the sealing plate (7) is fixedly mounted on a side of the sealing door (6) away from the disassembly rod (2); the protective door (8) is slidably mounted on the front side of the explosion-proof shell (1); the protective frame (9) is fixedly mounted on a side of the protective door (8) away from the disassembly rod (2); the limiting rod (10) slidably penetrates the inner and outer walls of the protective frame (9); the protective hole (11) is formed on the circumferential surface of the limiting rod (10); the protective rod (12) is slidably mounted on a side of the protective frame (9) away from the disassembly frame (3); and a sealing hole is formed on the surface of the sealing plate (7); A No. 1 spring is provided between the disassembly rod (2) and the disassembly frame (3), the motor body (5) contacts the inner wall of the calibration frame (4), and the limit rod (10) contacts the inner wall of the sealing hole; A No. 2 spring is provided between the protection frame (9) and the limiting rod (10), the protection rod (12) is in contact with the inner wall of the protection hole (11), and the sealing door (6) is in contact with the protection door (8); The supporting device comprises a T-shaped plate (131), a sliding rod (132), a hollow sliding frame (133), a placement rod (134), a T-shaped block (135), a placement frame (136) and an extrusion plate (137); the T-shaped plate (131) is fixedly mounted on the top of the explosion-proof shell (1); the sliding rod (132) slides through the front and rear walls of the T-shaped plate (131); the hollow sliding frame (133) is fixedly mounted on both ends of the sliding rod (132); the extrusion plate (137) is fixedly mounted on a side of the hollow sliding frame (133) away from the sealing plate (7); the placement rod (134) is fixedly mounted on the top of the explosion-proof shell (1); the T-shaped block (135) is slidably mounted on the circumferential surface of the placement rod (134); and the placement frame (136) is fixedly mounted on the circumferential surface of the motor body (5).

2. The coaxial direct-connected AC explosion-proof motor according to claim 1, characterized in that: A No. 3 spring is provided between the T-shaped plate (131) and the sliding rod (132); a side of the hollow sliding frame (133) close to the sealing plate (7) is provided as an inclined surface; and the hollow sliding frame (133) is in contact with the sealing door (6).

3. The coaxial direct-connected AC explosion-proof motor according to claim 2, characterized in that: A No. 4 spring is provided between the placement rod (134) and the T-shaped block (135); a side of the pressing plate (137) close to the placement rod (134) is provided as an inclined surface; and the pressing plate (137) is in contact with the T-shaped block (135).

4. The coaxial direct-connected AC explosion-proof motor according to claim 3 is characterized in that: The protective device comprises a linkage rod (141), a U-shaped rod (142), a hollow frame (143), a stabilizing rod (144), a limiting frame (145) and a driving button (146); the linkage rod (141) is fixedly mounted on the bottom of the T-shaped block (135); the U-shaped rod (142) slides through the top of the explosion-proof shell (1); the hollow frame (143) is slidably mounted on a side of the U-shaped rod (142) close to the motor body (5); the stabilizing rod (144) is fixedly mounted on the bottom of the hollow frame (143); the limiting frame (145) is fixedly mounted on the top of the inner wall of the explosion-proof shell (1); and the driving button (146) is fixedly mounted on the circumferential surface of the motor body (5); and the driving button (146) is electrically connected to the motor body (5).

5. The coaxial direct-connected AC explosion-proof motor according to claim 4, characterized in that: A return spring (147) is provided between the U-shaped rod (142) and the explosion-proof shell (1), a No. 5 spring is provided between the hollow frame (143) and the U-shaped rod (142), and one end of the stabilizing rod (144) close to the T-shaped block (135) is provided as an inclined surface.

Images