Explosion-proof type low-voltage explosion-proof generator

Abstract

The invention discloses an explosion-proof type low-voltage explosion-proof generator, which relates to the technical field of generators, and comprises a generator body, a screw state micro-motion monitoring center mechanism and an instantaneous screwing automatic repairing mechanism, the bottom of the generator body is fixedly connected with a mounting base, and the four corners of the mounting base are in threaded connection with fixing bolts; through the arrangement of the screw state micro-motion monitoring central mechanism, when a fixing bolt starts to loosen and move upwards due to vibration, an early warning mechanism can be quickly triggered, so that loosening early warning of the fixing bolt can be sent to a worker in time, the worker can take measures in time, the loosening condition is prevented from being further deteriorated, and the working efficiency is improved. Meanwhile, according to the design, the early warning function is achieved in a mechanical linkage mode without depending on quick-wear parts such as electronic elements or sensors, and therefore high reliability and stability can be kept in the severe working environment, and the overall equipment cost is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of generators, and in particular to a flameproof low-voltage explosion-proof motor. Background Art

[0002] In the prior art, the flameproof low-voltage explosion-proof motor is a specially designed motor that uses a flameproof casing to isolate the motor's live parts from the external environment to prevent internal sparks or arcs from igniting external explosive gases, ensuring safe operation in flammable and explosive environments. This type of motor is suitable for hazardous places such as petroleum, chemical, and mining, and can effectively prevent explosion accidents.

[0003] However, due to the continuous vibration of the generator equipment during operation, the fixing bolts on its base often become loose, which not only affects the normal operation of the equipment, but also causes more serious failures, such as equipment damage, shutdown and even safety accidents. The traditional method of detecting loose fixing bolts mainly relies on post-maintenance, that is, after the equipment fails or shuts down, the loose bolt problem is discovered through manual inspection or regular maintenance. This method has obvious disadvantages: First, the detection is delayed, and the loose bolts are often discovered only after the loose bolts have caused equipment performance to deteriorate or a failure to occur; second, it is inefficient and requires a lot of manpower and material resources for regular inspection and maintenance; third, it has poor reliability, especially in harsh working environments, manual inspections are difficult to accurately judge the tightness of the bolts.

[0004] In view of this, the present invention proposes a flameproof low-voltage explosion-proof motor to make up for and improve the deficiencies of the prior art. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides a flameproof low-voltage explosion-proof motor to solve the corresponding technical problems raised in the above background technology.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is: a flameproof low-voltage explosion-proof motor, including a generator body, a mounting base is fixedly connected to the bottom of the generator body, and fixing bolts are threadedly connected to the four corners of the mounting base, and also includes: a screw state micro-motion monitoring central mechanism and an instantaneous screw tightening automatic repair mechanism, and the screw state micro-motion monitoring central mechanism and the instantaneous screw tightening automatic repair mechanism are both arranged on the mounting base; The screw state micro-motion monitoring central mechanism is used to capture the tightness of the fixing bolts, and when the fixing bolts become loose, it acts as a central control to synchronously start the instantaneous screw tightening automatic repair mechanism and issue an early warning to the staff; The instantaneous screw tightening automatic repair mechanism is used to automatically tighten and repair the fixing bolt when the fixing bolt is loosened and is affected by the changes of the screw state micro-motion monitoring central mechanism.

[0007] Preferably, the screw-state micro-motion monitoring central mechanism includes a friction ring fixedly connected to the outer surface of the upper end of the fixing bolt, the top of the friction ring is provided with an annular groove, and the four corners of the mounting base are provided with cylindrical grooves, the bottom wall of the cylindrical groove is fixedly connected to a first telescopic rod, the top of the first telescopic rod is fixedly connected to a follower plate, the bottom of the follower plate facing the fixing bolt is fixedly connected to a connecting ring, and the connecting ring is slidably connected in the cylindrical groove, and a first return spring is fixedly connected between the follower plate and the cylindrical groove, and the first return spring is sleeved on the outer surface of the first telescopic rod.

[0008] Preferably, a vertical plate is symmetrically clamped on the top of the mounting base with the first telescopic rod as the center, a torsion spring shaft is rotatably connected between the upper ends of the vertical plates, a passive plate is fixedly connected to the outer surface of the middle part of the torsion spring shaft, and the passive plate is inclined, the inclined high end of the passive plate is vertically away from the fixing bolt, and the inclined low end of the passive plate is horizontally away from the fixing bolt and close to the follower plate, and contacts are provided on the facing surfaces of the passive plate and the follower plate that are close to each other.

[0009] Preferably, a connecting frame is fixedly connected to the bottom of one end of the passive plate away from the follower plate, a linkage plate is rotatably connected to the connecting frame, and a blocking plate is rotatably connected to one end of the linkage plate away from the connecting frame.

[0010] Preferably, the opposite sides of the blocking plate in the same longitudinal direction are fixedly connected with horizontal bars at equal distances, and the horizontal bar is provided with an embedded groove on the side facing the follower plate, and a hemispherical protrusion is arranged inside the embedded groove, and a second telescopic rod and a second return spring are fixedly connected between the hemispherical protrusion and the embedded groove respectively, and the second return spring is sleeved on the outer surface of the second telescopic rod.

[0011] Preferably, the instant screw tightening automatic repair mechanism includes friction plates slidably connected to the four corners of the mounting base, and the friction plates are transmission-connected to the friction rings, and the friction plates are provided with sliding grooves equidistantly on one side of the friction plate facing the blocking plate, and the horizontal bars are slidably connected in the sliding grooves, and the end of the friction plate away from the blocking plate is fixedly connected to a push plate, and the friction plate and the push plate form an L-shaped structure.

[0012] Preferably, the push plate is provided with transverse grooves at equal intervals on one side facing the blocking plate, and a hemispherical groove is provided on a groove wall on one side facing the friction plate, and the hemispherical groove is matched with the hemispherical protrusion.

[0013] Preferably, a mounting plate is provided on the side of the push plate away from the blocking plate, a third telescopic rod and a third return spring are fixedly connected between the mounting plate and the push plate respectively, and the third return spring is sleeved on the outer surface of the third telescopic rod.

[0014] Compared with the prior art, the present invention has the following beneficial effects: (1) By setting up the screw micro-motion monitoring central mechanism and utilizing the linkage design of the follower plate, the passive plate and the contact, when the fixing bolts begin to loosen and move upward due to vibration, the early warning mechanism can be quickly triggered, so as to promptly issue an early warning of the loosening of the fixing bolts to the staff, so that the staff can take timely measures to prevent the loosening situation from further deteriorating, thereby protecting the stable operation of the generator body and the entire system. Compared with the traditional post-maintenance method, this design can issue an early warning signal at the early stage of the loosening of the fixing bolts, providing the staff with enough time to take preventive measures to prevent the loosening situation from further deteriorating. In addition, this design uses a mechanical linkage method to realize the early warning function, and does not rely on wearing parts such as electronic components or sensors. Therefore, it can maintain high reliability and stability even in harsh working environments, effectively reducing the overall equipment cost; Among them, the sliding connection design between the annular groove and the connecting ring, as well as the contacts set between the follower plate and the passive plate, is used to achieve non-contact monitoring of the loosening of the fixing bolts. This monitoring method will not interfere with the normal movement of the fixing bolts, nor will it cause wear or failure due to long-term contact, thereby helping the mechanism to operate better.

[0015] (2) By setting up the instantaneous screw tightening automatic repair mechanism, the passive plate pushes the blocking plate, so that the friction plate drives the friction ring to rotate synchronously, thereby realizing the loosening and tightening operation of the fixing bolts, so that the loose fixing bolts can be tightened in time, effectively preventing equipment failure or safety accidents caused by loose bolts, and improving the overall safety and reliability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of a preferred embodiment of the present invention; Figure 2 The present invention shows Figure 1 The enlarged structural diagram at A in the middle; Figure 3 It is a structural schematic diagram of the fixing bolt connection shown in the present invention; Figure 4 It is a schematic diagram of the structure of the friction plate connection shown in the present invention; Figure 5 It is a schematic diagram of the split structure of the first telescopic rod and the cylindrical slot shown in the present invention; Figure 6 It is a structural schematic diagram of the connection between the follower plate and the passive plate shown in the present invention; Figure 7 The present invention shows Figure 6 Enlarged structural diagram at B in the middle.

[0017] The numbers in the figure are: 1. Generator body; 2. Mounting base; 3. Fixing bolts; 4. Central mechanism for monitoring screw micro-motion; 401. friction ring; 402. annular groove; 403. cylindrical groove; 404. first telescopic rod; 405. first return spring; 406. follower plate; 407. contact; 408. connecting ring; 409. vertical plate; 410. torsion spring shaft; 411. passive plate; 412. connecting frame; 413. linkage plate; 414. blocking plate; 415. horizontal bar; 416. embedded groove; 417. second telescopic rod; 418. second return spring; 419. hemispherical bump; 5. Instantaneous screw tightening automatic repair mechanism; 501. Mounting plate; 502. Third telescopic rod; 503. Third return spring; 504. Push plate; 505. Friction plate; 506. Slide groove; 507. Horizontal groove; 508. Hemispherical slot. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiments of the present invention: Please refer to Figures 1 to 7 As shown, a flameproof low-voltage explosion-proof motor includes a generator body 1, a mounting base 2 is fixedly connected to the bottom of the generator body 1, and fixing bolts 3 are threadedly connected to the four corners of the mounting base 2, and also includes: a screw state micro-motion monitoring central mechanism 4 and an instantaneous screw tightening automatic repair mechanism 5, and the screw state micro-motion monitoring central mechanism 4 and the instantaneous screw tightening automatic repair mechanism 5 are both arranged on the mounting base 2; The screw state micro-motion monitoring central mechanism 4 is used to capture the tightness state of the fixing bolt 3, and when the fixing bolt 3 becomes loose, it acts as a central control to synchronously start the instantaneous screw tightening automatic repair mechanism 5 and issue an early warning prompt to the staff; The instantaneous screw tightening automatic repair mechanism 5 is used to automatically tighten and repair the fixing bolt 3 when the fixing bolt 3 is loosened, under the influence of the change of the screw state micro-motion monitoring central mechanism 4; The screw state micro-motion monitoring central mechanism 4 includes a friction ring 401 fixedly connected to the outer surface of the upper end of the fixing bolt 3, an annular groove 402 is opened on the top of the friction ring 401, and cylindrical grooves 403 are opened at the four corners of the mounting base 2. The inner bottom wall of the cylindrical groove 403 is fixedly connected to the first telescopic rod 404, and a follower plate 406 is fixedly connected to the top of the first telescopic rod 404. The bottom of the follower plate 406 facing the fixing bolt 3 is fixedly connected to a connecting ring 408, and the connecting ring 408 is slidably connected in the cylindrical groove 403. A first return spring 405 is also fixedly connected between the follower plate 406 and the cylindrical groove 403, and the first return spring 405 is sleeved on the outer surface of the first telescopic rod 404; A vertical plate 409 is symmetrically clamped on the top of the mounting base 2 with the first telescopic rod 404 as the center, and a torsion spring shaft 410 is rotatably connected between the upper ends of the vertical plates 409. A passive plate 411 is fixedly connected to the outer surface of the middle part of the torsion spring shaft 410, and the passive plate 411 is inclined. The high end of the passive plate 411 is vertically away from the fixing bolt 3, and the low end of the passive plate 411 is horizontally away from the fixing bolt 3 and close to the follower plate 406. Contacts 407 are provided on the facing surfaces of the passive plate 411 and the follower plate 406. A connecting frame 412 is fixedly connected to the bottom of one end of the passive plate 411 away from the follower plate 406, a linkage plate 413 is rotatably connected to the connecting frame 412, and a blocking plate 414 is rotatably connected to one end of the linkage plate 413 away from the connecting frame 412; The same longitudinal blocking plate 414 is fixedly connected with horizontal bars 415 at equal distances on the opposite sides thereof. The horizontal bar 415 is provided with an embedded groove 416 on the side facing the follower plate 406. A hemispherical protrusion 419 is provided inside the embedded groove 416. A second telescopic rod 417 and a second return spring 418 are fixedly connected between the hemispherical protrusion 419 and the embedded groove 416 respectively. The second return spring 418 is sleeved on the outer surface of the second telescopic rod 417.

[0020] The effects achieved by this embodiment are as follows: compared with the prior art, by setting the screw micro-motion monitoring central mechanism 4 and utilizing the linkage design of the follower plate 406, the passive plate 411 and the contact 407, when the fixing bolt 3 starts to loosen due to vibration and moves upward, the early warning mechanism can be quickly triggered, so as to promptly issue an early warning of the loosening of the fixing bolt 3 to the staff, so that the staff can take measures in time to prevent the loosening from further deteriorating, thereby protecting the stable operation of the generator body 1 and the entire system; Compared with the traditional post-maintenance method, this design can send out an early warning signal at the early stage of loosening of the fixing bolt 3, providing the staff with enough time to take preventive measures to prevent the loosening from further deteriorating; At the same time, the design uses mechanical linkage to achieve the early warning function and does not rely on vulnerable parts such as electronic components or sensors. Therefore, it can maintain high reliability and stability even in harsh working environments, effectively reducing the overall equipment cost.

[0021] Further examples: Please refer to Figures 1 to 7 As shown, the instant screw tightening automatic repair mechanism 5 includes a friction plate 505 slidably connected to the four corners of the mounting base 2, and the friction plate 505 is transmission-connected to the friction ring 401, and the friction plate 505 is equidistantly provided with a slide groove 506 on one side facing the blocking plate 414, and the horizontal bar 415 is slidably connected in the slide groove 506, and the end of the friction plate 505 away from the blocking plate 414 is fixedly connected to the push plate 504, and the friction plate 505 and the push plate 504 form an L-shaped structure; The push plate 504 has transverse grooves 507 equidistantly formed on one side of the blocking plate 414, and the transverse groove 507 has hemispherical grooves 508 formed on one side of the groove wall facing the friction plate 505, and the hemispherical grooves 508 are matched with the hemispherical protrusions 419; A mounting plate 501 is provided on one side of the push plate 504 away from the blocking plate 414 , a third telescopic rod 502 and a third return spring 503 are fixedly connected between the mounting plate 501 and the push plate 504 , and the third return spring 503 is sleeved on the outer surface of the third telescopic rod 502 .

[0022] The effects achieved by this embodiment are as follows: compared with the prior art, by setting up the instantaneous screw tightening automatic repair mechanism 5, the passive plate 411 pushes the blocking plate 414, so that the friction plate 505 drives the friction ring 401 to rotate synchronously, thereby realizing the loosening and tightening operation of the fixing bolt 3, so that the loose fixing bolt 3 can be tightened in time, effectively preventing equipment failure or safety accidents caused by loose bolts, and improving the overall safety and reliability of the equipment.

[0023] The complete usage steps and working principle of the above embodiment are as follows: The following is the working process of the screw state micro-motion monitoring central mechanism 4 for capturing the tightness state of the fixing bolt 3 and issuing an early warning to the staff when the fixing bolt 3 is loose: When the fixing bolts 3 on the mounting base 2 become loose due to the vibration generated by the operation of the generator body 1, since the loosening path of the fixing bolts 3 is upward movement, such as Figure 3 and Figure 5As shown, a friction ring 401 is fixedly arranged on the outside of the fixing bolt 3, and an annular groove 402 is provided on the top of the friction ring 401. As the fixing bolt 3 moves upward, the friction ring 401 moves upward synchronously. In addition, since cylindrical grooves 403 are provided at the four corners of the mounting base 2, and a follower plate 406 is fixedly connected in the cylindrical groove 403 through a first telescopic rod 404 and a first return spring 405, a connecting ring 408 slidably connected in the annular groove 402 is fixedly arranged at the bottom of one end of the follower plate 406 facing the fixing bolt 3. When the friction ring 401 moves upward, the connecting ring 408 can be pushed synchronously through the connection of the annular groove 402 (in this process, since the annular groove 402 and the connecting ring 408 are in a sliding connection, when the fixing bolt 3 is in the screw When the groove opening path is affected by vibration and rotates upward, the connecting ring 408 rotates synchronously with the rotation of the fixing bolt 3. At this time, the connecting ring 408 will rotate synchronously inside the annular groove 402 through the sliding setting between the connecting ring 408 and the annular groove 402, and the upward rotation movement of the fixing bolt 3 can make the connecting ring 408 rotate in the annular groove 402. At the same time, the movement of the fixing bolt 3 is used to synchronously drive the connecting ring 408 to move upward, and the end of the follower plate 406 where the connecting ring 408 is set is lifted upward. Therefore, the sliding between the annular groove 402 and the connecting ring 408 will not interfere with the movement of the fixing bolt 3, nor will it interfere with the lifting push of the follower plate 406). At this time, since the connecting ring 408 is fixedly set on the follower plate 406, when the connecting ring 408 is pushed upward, the follower plate 406 is synchronously lifted, so that the first telescopic rod 404 and the first reset spring 405 are synchronously stretched, and because the vertical plates 409 are symmetrically clamped on both sides of the follower plate 406 on the mounting base 2, and the torsion spring shaft 410 is rotatably set between the upper ends of the vertical plates 409, the passive plate 411 located above the follower plate 406 is fixedly set on the outer surface of the middle part of the torsion spring shaft 410, and the passive plate 411 is initially inclined when the fixing bolt 3 is not loose, and the inclined lower end of the passive plate 411 is close to the end of the follower plate 406 away from the connecting ring 408, and the opposite sides of the passive plate 411 and the connecting ring 408 are provided with contacts 407, when the fixing bolt 3 is loose, the follower plate 406 is pushed. When moving upward, the follower plate 406 will drive the passive plate 411 to tilt and move upward synchronously at the lower end. At this time, the passive plate 411 will rotate between the two vertical plates 409 with the torsion spring shaft 410 as the center, so that the passive plate 411 changes from an inclined state to a state of being parallel to the follower plate 406, and the upward movement of the follower plate 406 will make the upper surface of the follower plate 406 finally fit the bottom surface of the passive plate 411. At this time, the contact 407 between the follower plate 406 and the passive plate 411 contacts each other, and the external reminder is activated to issue a loosening warning to the staff for the fixing bolt 3. Therefore, through the linkage design of the follower plate 406, the passive plate 411 and the contact 407, when the fixing bolt 3 starts to loosen due to vibration and moves upward, the warning mechanism can be quickly triggered.This early warning helps the staff to take timely measures to prevent the loosening situation from further deteriorating, thereby protecting the stable operation of the generator body 1 and the entire system; Compared with the traditional post-maintenance method, this design can send out an early warning signal at the early stage of loosening of the fixing bolt 3, providing the staff with enough time to take preventive measures to prevent the loosening from further deteriorating. At the same time, this design uses a mechanical linkage method to achieve the early warning function, which does not rely on wearing parts such as electronic components or sensors. Therefore, it can maintain high reliability and stability in harsh working environments, effectively reducing the overall equipment cost. In addition, by utilizing the sliding connection design of the annular groove 402 and the connecting ring 408, and the contact point 407 between the follower plate 406 and the passive plate 411, non-contact monitoring of the looseness of the fixing bolt 3 is achieved. This monitoring method will not interfere with the normal movement of the fixing bolt 3, nor will it cause wear or failure due to long-term contact. Please refer to the above working process Figures 1 to 7 .

[0024] The following is a working process of the instantaneous screw tightening automatic repair mechanism 5 being used to automatically tighten and repair the fixing bolt 3 when the fixing bolt 3 is loosened, and the screw state micro-motion monitoring central mechanism 4 acts as a central control to synchronously start the instantaneous screw tightening automatic repair mechanism 5, so that the instantaneous screw tightening automatic repair mechanism 5 is affected by the changes of the screw state micro-motion monitoring central mechanism 4 and automatically tightens and repairs the fixing bolt 3: When the fixing bolt 3 is loosened, the follower plate 406 is pushed upward, and the passive plate 411 is corrected from the inclined state to a state parallel to the follower plate 406, and the outer surfaces of the passive plate 411 and the follower plate 406 are made to fit together. Figure 3 and Figure 6 As shown, since the bottom of the passive plate 411 is fixedly provided with a connecting frame 412 at the inclined high end (i.e., the end away from the contact 407), and the connecting frame 412 is provided with a blocking plate 414 through the rotation of the linkage plate 413, and when the initial fixing bolt 3 is not loose, the blocking plate 414 and the friction plate 505 are in contact, and the blocking plate 414 and the friction plate 505 are kept in a state of being pressed against each other by the elastic force of the third return spring 503, and horizontal bars 415 are equidistantly provided on the side of the blocking plate 414 facing the friction plate 505, as shown in FIG. Figure 4As shown, the friction plate 505 is provided with a sliding groove 506 adapted to the cross bar 415 at an equal distance on one side of the blocking plate 414, and the cross bar 415 is initially slidably arranged in the cross groove 507. With the rotation of the passive plate 411, the position of the connecting frame 412 can be changed. Through the linkage action of the linkage plate 413, the blocking plate 414 can be pushed in the direction away from the passive plate 411. At this time, the cross bar 415 will slide outward synchronously in the sliding groove 506, so that the blocking plate 414 and the friction plate 505 lose contact. At this time, the friction plate 505 will be driven by the elastic force of the third reset spring 503 to slide on the upper surface of the mounting base 2 in the direction away from the mounting plate 501. Through the transmission action of the friction plate 505 on the friction ring 401, the friction ring 401 can be driven to cooperate with the fixing bolt 3 to rotate synchronously on the mounting base 2, and the fixing bolt 3 is tightened (in this process, it should be noted that the friction plate 505 is away from the blocking plate 414. The push plate 504 is fixedly provided at one end, and the third return spring 503 is sleeved on the outer surface of the third telescopic rod 502 and is synchronously fixedly provided between the push plate 504 and the mounting plate 501. Initially, the third return spring 503 and the third telescopic rod 502 are in a compressed state. When the blocking plate 414 is removed, the resistance disappears, and the third telescopic rod 502 is restored to an extended state under the elastic force of the third return spring 503). In this process, when the fixing bolt 3 is loose, it is only necessary to push the follower plate 406 upwards, and the bolt tightening operation can be automatically completed through a series of mechanical linkages, without manual tightening, which greatly improves work efficiency and convenience. The automated design reduces the need for manual operation and reduces the risk of insufficient tightening or over-tightening due to human factors. Therefore, by timely tightening the loose fixing bolt 3, equipment failure or safety accidents caused by bolt loosening can be effectively prevented, thereby improving the overall safety and reliability of the equipment. like Figure 4 , Figure 6 as well as Figure 7As shown, an embedded groove 416 is provided on the side of the horizontal bar 415 facing the follower plate 406, and a hemispherical protrusion 419 is provided in the embedded groove 416, and a second telescopic rod 417 and a second return spring 418 are fixedly provided between the hemispherical protrusion 419 and the embedded groove 416. When the initial blocking plate 414 and the friction plate 505 are slidably connected through the horizontal bar 415 and the slide groove 506, the hemispherical protrusion 419 will be restricted in the embedded groove 416, so that the second telescopic rod 417 and the second return spring 418 are kept in a contracted state, and when the blocking plate 414 is pushed out from the front side of the friction plate 505, the push plate 504 is moved in a direction away from the mounting plate 501 by the elastic force of the third return spring 503. When the push plate 504 and the blocking plate 414 are in contact with each other, the horizontal bar 415 is inserted into the horizontal groove 507, and the groove wall of the horizontal groove 507 facing the friction plate 505 is provided with a hemispherical groove 508 adapted to the hemispherical protrusion 419. As the horizontal bar 415 is inserted, the hemispherical protrusion 419 is synchronously inserted into the hemispherical groove 508, so that the horizontal bar 415 and the horizontal groove 507 are further kept in a clamping relationship, thereby strengthening the connection between the blocking plate 414 and the push plate 504, limiting the position of the push plate 504, thereby achieving further tightening and limiting the fixing bolt 3, and avoiding the situation that the fixing bolt 3 continues to loosen again due to the vibration of the generator body 1 due to the failure of personnel to arrive at the site in time; Please refer to the above working process Figures 1 to 7 .

[0025] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flameproof low-voltage explosion-proof motor, comprising a generator body (1), the bottom of the generator body (1) being fixedly connected to a mounting base (2), the four corners of the mounting base (2) being threadedly connected to fixing bolts (3), characterized in that: It also includes: a screw state micro-motion monitoring central mechanism (4) and an instantaneous screw tightening automatic repair mechanism (5), and the screw state micro-motion monitoring central mechanism (4) and the instantaneous screw tightening automatic repair mechanism (5) are both arranged on the mounting base (2); The screw state micro-motion monitoring central mechanism (4) is used to capture the tightness state of the fixing bolt (3), and when the fixing bolt (3) becomes loose, it acts as a central control to synchronously start the instantaneous screw tightening automatic repair mechanism (5) and issue an early warning prompt to the staff; The instantaneous screw tightening automatic repair mechanism (5) is used to automatically tighten and repair the fixing bolt (3) when the fixing bolt (3) becomes loose, under the influence of changes in the screw state micro-motion monitoring central mechanism (4).

2. A flameproof low-voltage explosion-proof motor according to claim 1, characterized in that: The screw-state micro-motion monitoring central mechanism (4) comprises a friction ring (401) fixedly connected to the outer surface of the upper end of the fixing bolt (3); the friction ring (401) is provided with an annular groove (402) at the top; the mounting base (2) is provided with cylindrical grooves (403) at four corners; the inner bottom wall of the cylindrical groove (403) is fixedly connected to a first telescopic rod (404); the top of the first telescopic rod (404) is fixedly connected to a follower plate (406); the bottom of one end of the follower plate (406) facing the fixing bolt (3) is fixedly connected to a connecting ring (408), and the connecting ring (408) is slidably connected in the cylindrical groove (403); a first return spring (405) is also fixedly connected between the follower plate (406) and the cylindrical groove (403), and the first return spring (405) is sleeved on the outer surface of the first telescopic rod (404).

3. A flameproof low-voltage explosion-proof motor according to claim 2, characterized in that: A vertical plate (409) is symmetrically clamped on the top of the mounting base (2) with the first telescopic rod (404) as the center, and a torsion spring shaft (410) is rotatably connected between the upper ends of the vertical plates (409). A passive plate (411) is fixedly connected to the outer surface of the middle part of the torsion spring shaft (410), and the passive plate (411) is inclined. The inclined high end of the passive plate (411) is arranged away from the fixing bolt (3), and the inclined low end of the passive plate (411) is arranged away from the fixing bolt (3) and close to the follower plate (406). Contact points (407) are provided on the facing surfaces of the passive plate (411) and the follower plate (406) at the ends close to each other.

4. The flameproof low-voltage explosion-proof motor according to claim 3 is characterized in that: A connecting frame (412) is fixedly connected to the bottom of one end of the passive plate (411) away from the follower plate (406); a linkage plate (413) is rotatably connected to the connecting frame (412); and a blocking plate (414) is rotatably connected to one end of the linkage plate (413) away from the connecting frame (412).

5. The flameproof low-voltage explosion-proof motor according to claim 4, characterized in that: The blocking plate (414) is fixedly connected with horizontal bars (415) at equal intervals on the opposite sides thereof in the same longitudinal direction. The horizontal bar (415) is provided with an embedded groove (416) on the side facing the follower plate (406). A hemispherical protrusion (419) is arranged inside the embedded groove (416). A second telescopic rod (417) and a second return spring (418) are fixedly connected between the hemispherical protrusion (419) and the embedded groove (416), and the second return spring (418) is sleeved on the outer surface of the second telescopic rod (417).

6. The flameproof low-voltage explosion-proof motor according to claim 5, characterized in that: The instantaneous screw tightening automatic repair mechanism (5) comprises a friction plate (505) slidably connected to the four corners of the mounting base (2), and the friction plate (505) is transmission-connected to the friction ring (401), and the friction plate (505) is equidistantly provided with sliding grooves (506) on one side of the friction plate (505) facing the blocking plate (414), and the horizontal bar (415) is slidably connected in the sliding grooves (506), and one end of the friction plate (505) away from the blocking plate (414) is fixedly connected to the push plate (504), and the friction plate (505) and the push plate (504) form an L-shaped structure.

7. The flameproof low-voltage explosion-proof motor according to claim 6, characterized in that: The push plate (504) is provided with transverse grooves (507) at equal intervals on one side facing the blocking plate (414), and the transverse groove (507) is provided with a hemispherical groove (508) on one side facing the friction plate (505), and the hemispherical groove (508) is matched with the hemispherical protrusion (419).

8. The flameproof low-voltage explosion-proof motor according to claim 6, characterized in that: A mounting plate (501) is provided on one side of the push plate (504) away from the blocking plate (414); a third telescopic rod (502) and a third return spring (503) are fixedly connected between the mounting plate (501) and the push plate (504); and the third return spring (503) is sleeved on the outer surface of the third telescopic rod (502).

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