Shock-absorbing low-noise energy-saving permanent magnet synchronous motor starting device

Abstract

The invention relates to the technical field of permanent magnet synchronous motors, and discloses a damping low-noise energy-saving permanent magnet synchronous motor starting device which comprises a mounting plate, a mounting block is fixedly connected to the rear side face of the mounting plate, an electromagnetic starter is arranged on the front side face of the mounting plate, and a connecting angle plate is fixedly connected to the front side face of the mounting plate. According to the electromagnetic starter, vibration generated by the electromagnetic starter in the process of starting the motor is absorbed by the vertical shock absorption throat and the transverse shock absorption throat, so that the vibration amplitude and noise of the electromagnetic starter are reduced, and the stability of the electromagnetic starter in use is improved; and the connecting sliding plate and the side baffle are rapidly fixed to the connecting angle plate, the using stability of the electromagnetic starter is further improved, the sliding clamping block is separated from limiting of the clamping frame and the positioning shaft, then the connecting sliding plate and the side baffle can be rapidly moved, and the using convenience of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of permanent magnet synchronous motors, and in particular to a vibration-reducing and low-noise energy-saving permanent magnet synchronous motor starting device. Background Art

[0002] A permanent magnet synchronous motor starter is an electrical device used to control the starting of a permanent magnet synchronous motor. Its main function is to control the starting process of the motor by gradually accelerating it to achieve a smooth and impact-free starting, thereby protecting the motor and drive system. Permanent magnet synchronous motors are widely used in industry, transportation, wind power generation and other fields due to their high efficiency, high power factor and energy saving. Due to their large initial starting current, they are easy to affect the power grid, so a starter is needed for control and protection. It is difficult to reduce vibration and noise of the starter when it is working in the existing technology.

[0003] The patent with announcement number CN212572426U discloses a flameproof vacuum electromagnetic starter for mining, which includes electrical components, a base, an explosion-proof housing and a junction box. The explosion-proof housing is fixedly connected to the base, the electrical components are installed in the explosion-proof housing, and the junction box is fixedly connected to the explosion-proof housing. The junction box is covered with a box cover, and the box cover is fixedly connected to the junction box by bolts. The side of the junction box facing the box cover is provided with at least two limiting threaded holes, and the two limiting threaded holes are provided on both sides of the junction box. Support rods are fixed with threads in the limiting threaded holes, and the two sides of the two support rods facing each other are provided with sliding grooves for the two ends of the box cover to pass through respectively. A fixing assembly for fixing the box cover is also provided on the support rod, which can prevent water drops from the well from falling into the inside of the junction box and protect the electrical components inside the junction box. Although the patent solves the above problems, it is still difficult to reduce the vibration and noise of the starter when it is working, so a shock-absorbing and low-noise energy-saving permanent magnet synchronous motor starting device is proposed to solve the above problems. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a vibration-reducing, low-noise, energy-saving permanent magnet synchronous motor starting device in view of the deficiencies in the above-mentioned prior art.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a vibration-damping, low-noise energy-saving permanent magnet synchronous motor starting device, comprising a mounting plate, a mounting block is fixedly connected to the rear side of the mounting plate, an electromagnetic starter is arranged on the front side of the mounting plate, a connecting angle plate is fixedly connected to the front side of the mounting plate, a connecting slide is slidably connected to the inner surface of the connecting angle plate, a side of the connecting slide close to the electromagnetic starter is fixedly connected to a side baffle, a side of the connecting slide close to the electromagnetic starter is fixedly connected to a vertical shock absorber throat, a side of the side baffle close to the electromagnetic starter is fixedly connected to a horizontal shock absorber throat, a side of the connecting slide close to the electromagnetic starter is fixedly connected to a pushing protrusion, and the side baffle is away from the electromagnetic starter A sliding block is fixedly connected to one side of the device, and a positioning hole is opened on the inner side of the sliding block, and a positioning hole is opened, and a positioning hole is opened on the inner side of the sliding block, and a card frame is fixedly connected to the side of the connecting angle plate away from the side baffle, and a first cylindrical shell is fixedly connected to the side of the card frame away from the connecting angle plate, and a positioning shaft is slidably connected to the inner surface of the first cylindrical shell, and a lever is fixedly connected to the upper surface of the positioning shaft. A protective fixing device for protecting and quickly installing and disassembling the electromagnetic starter is provided on the front side of the mounting plate, and a wire harness device for fixing and protecting the transmission line between the electromagnetic starter and the motor is provided on the rear side of the mounting plate. The sliding block and the side of the connecting angle plate away from the side baffle are in contact with each other, and the card frame and the mounting plate are fixedly connected on both sides, and the first cylindrical shell A through groove is provided on the upper surface of the shell, and the inner surface of the through groove and the surface of the lever are in contact with each other, the vertical shock absorber throat and the electromagnetic starter are in contact with each other on the upper and lower sides, and the horizontal shock absorber throat and the electromagnetic starter are in contact with each other on the left and right sides. The mounting plate is installed on the wall through the mounting block, and then the connecting slide plate is pulled to the front end of the connecting angle plate, and the electromagnetic starter is placed between the vertical shock absorber throat and the horizontal shock absorber throat. At this time, the connecting slide plate and the side baffle are pushed into the connecting angle plate to make the electromagnetic starter fit with the mounting plate, and the transmission line used to connect the electromagnetic starter and the motor is connected to the wiring terminal, and then the transmission line is inserted from the front side of the wiring slot into the rear side of the wiring slot and finally connected to the motor. At this time, the electromagnetic starter is turned on, and the vibration generated by the electromagnetic starter in the process of starting the motor is vertically When the shock absorber throat and the lateral shock absorber throat are absorbed and the side baffle is pushed backward, the side baffle drives the sliding block to move backward. After the arc surface of the sliding block contacts the arc end of the positioning shaft, the positioning shaft is pushed toward the inner side of the first cylindrical sleeve shell through the guidance of the arc surface, and the sliding block continues to move backward so that the positioning hole is aligned with the positioning shaft. At this time, the elastic reset action of the reset spring pushes the positioning shaft to pop out of the first cylindrical sleeve shell and insert it into the positioning hole, thereby clamping the sliding block in the card frame, and then the connecting slide plate and the side baffle are quickly fixed to the connecting angle plate. When it is necessary to slide the connecting slide plate and the side baffle forward and pull them out to facilitate the disassembly of the electromagnetic starter, push the lever to move the lever away from the card frame. At this time, the lever drives the positioning shaft to pull out of the positioning hole so that the sliding block is separated from the limit of the card frame and the positioning shaft.

[0006] Preferably, the protective fixing device includes a connecting piece, a movable baffle, a first threaded hole, a connecting seat, and a second threaded hole, the connecting piece is fixedly connected to the side of the connecting angle plate away from the sliding block, the movable baffle is hinged on the circumferential surface of the connecting piece, the first threaded hole is opened on the inner side of the movable baffle, the connecting seat is fixedly connected to the upper and lower sides of the electromagnetic starter, and the second threaded hole is opened on the inner side of the connecting seat, and the protective fixing device also includes a limiting slot, a connecting shaft, an L-shaped rotating clip, and a resistance block, the limiting slots are opened on both sides of the connecting seat, the connecting shaft is fixedly connected to the side of the connecting angle plate away from the sliding block, the L-shaped rotating clip is hinged on the circumferential surface of the connecting shaft, and the resistance block is fixedly connected to the bottom end of the pushing convex rod, and a torsion spring is arranged at the hinge of the L-shaped rotating clip and the connecting shaft, the circumferential surface of the pushing convex rod and the L-shaped rotating clip contact each other, and rotate The movable baffle blocks the upper and lower sides of the electromagnetic starter. When the electromagnetic starter needs to be used for a long time, the threaded rod is rotated and inserted into the first threaded hole and the second threaded hole, so that the movable baffle and the connecting seat are fixed, and the electromagnetic starter is more stably fixed on the mounting plate. When the performance of the electromagnetic starter needs to be tested, the connecting slide is pushed backward, and the connecting slide drives the pushing protruding rod to move backward, and the pushing protruding rod contacts the L-shaped rotating card and drives it to rotate. After the L-shaped rotating card is rotated, it is inserted into the limit slot to jam the connecting seat and the electromagnetic starter. When the electromagnetic starter needs to be removed, the connecting slide is pulled forward, and the connecting slide drives the pushing protruding rod to move forward, pushing the protruding rod away from the L-shaped rotating card. After the L-shaped rotating card, the elastic reset action of the torsion spring drives the L-shaped rotating card to rotate and reset, thereby disengaging from the limit slot. At this time, the electromagnetic starter can be quickly removed.

[0007] Preferably, the wire harness device includes a wiring terminal, a wiring slot, a fixed upper card shell, a movable lower card shell, and a flexible clamping pad, the wiring terminal is fixedly connected to the rear side of the electromagnetic starter, the wiring slot is arranged at the bottom of the mounting plate, the fixed upper card shell is fixedly connected to the rear side of the mounting plate, the movable lower card shell is arranged below the fixed upper card shell, and the flexible clamping pad is fixedly connected to the inner surface of the fixed upper card shell, the wiring device also includes a sliding shaft, a limiting slide groove, a trapezoidal lifting block, a second cylindrical shell, a connecting spring, and a trapezoidal pushing block, the sliding shaft is fixedly connected to the front side of the movable lower card shell, the limiting slide groove is arranged at the bottom of the mounting plate, the trapezoidal lifting block is fixedly connected to the lower surface of the movable lower card shell, the second cylindrical shell is fixedly connected to the front side of the mounting plate, the connecting spring is fixedly connected to the inner surface of the second cylindrical shell, the trapezoidal pushing block is fixedly connected to the rear end of the connecting spring, the flexible clamping pad is fixedly connected to the inner surface of the movable lower card shell, the sliding shaft is slidably connected to the inner surface of the limiting slide groove, and the front of the movable lower card The side surface and the rear side surface of the mounting plate are in contact with each other, the front side surface of the trapezoidal push block and the rear side surface of the mounting plate are in contact with each other, the inclined surface of the trapezoidal push block and the inclined surface of the trapezoidal lifting block are in contact with each other, and the movable lower card shell is pushed upward to make the movable lower card shell fit with the fixed upper card shell. At this time, the movable lower card shell and the fixed upper card shell clamp the transmission line between the electromagnetic starter and the motor through the flexible clamping pad, and when the convex rod is pushed to move backward, the resistance block is driven to move backward. When the resistance block contacts the trapezoidal push block, it is pushed to move backward, and the trapezoidal push block moves backward When the lifting block moves, the inclined surface pushes the trapezoidal lifting block upward, and the trapezoidal lifting block slides in the limiting slide groove through the sliding shaft to keep rising in a straight line. When the trapezoidal lifting block moves upward, it drives the movable lower card shell to move upward and finally fits with the fixed upper card shell to clamp the transmission line. After the resistance block moves forward and separates from the trapezoidal push block, the elastic reset action of the connecting spring pulls the trapezoidal push block forward and resets. At this time, the trapezoidal lifting block loses the resistance of the trapezoidal push block and descends. The descent of the trapezoidal lifting block drives the movable lower card shell to descend and releases the transmission line.

[0008] The present invention adopts the above technical solution to bring the following beneficial effects:

[0009] 1. In this shock-absorbing, low-noise, energy-saving permanent magnet synchronous motor starting device, the vibration generated by the electromagnetic starter in the process of starting the motor is absorbed by the vertical shock absorber throat and the lateral shock absorber throat, thereby reducing the vibration amplitude and noise of the electromagnetic starter and improving the stability of the electromagnetic starter during use. The connecting slide plate and the side baffle plate are quickly fixed to the connecting angle plate, further improving the stability of the electromagnetic starter during use. The sliding card block is separated from the limit of the card frame and the positioning shaft, and then the connecting slide plate and the side baffle plate can be quickly moved, thereby improving the convenience of using the device.

[0010] 2. The vibration-damping, low-noise, energy-saving permanent magnet synchronous motor starting device has a movable baffle that blocks the upper and lower sides of the electromagnetic starter, thereby further protecting the electromagnetic starter and improving the safety of the electromagnetic starter. The L-shaped rotating card is rotated and inserted into the limit slot to clamp the connecting seat and the electromagnetic starter, thereby improving the fixed installation speed of the electromagnetic starter. The L-shaped rotating card is rotated and reset to disengage from the limit slot. At this time, the electromagnetic starter can be quickly disassembled, thereby improving the efficiency of installing and disassembling the electromagnetic starter, and thus facilitating the testing of the electromagnetic starter.

[0011] 3. The shock-absorbing, low-noise, energy-saving permanent magnet synchronous motor starting device has a flexible clamping pad that clamps the transmission line between the electromagnetic starter and the motor to prevent the transmission line from being damaged or affecting the starting effect of the motor after being pulled. The flexible clamping pad deforms after contacting the transmission line to prevent the transmission line from being worn during the clamping process. It is also convenient for fixing transmission lines of different thicknesses, thereby improving the applicability of the device. The movable lower card shell moves upward and finally fits with the fixed upper card shell and clamps the transmission line, thereby improving the convenience of using the device. The movable lower card shell descends and releases the transmission line, thereby further improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0013] Figure 2 It is a schematic diagram of the front side three-dimensional structure of the side baffle of the present invention;

[0014] Figure 3 For the present invention Figure 2 A is a schematic diagram of the enlarged structure of the middle part;

[0015] Figure 4 It is a schematic diagram of the front side stereoscopic structure of the protective fixing device of the present invention;

[0016] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of B;

[0017] Figure 6 It is a schematic diagram of the rear side cross-sectional three-dimensional structure of the wiring harness device of the present invention;

[0018] Figure 7 For the present invention Figure 6 Schematic diagram of the enlarged structure of C in the middle;

[0019] Figure 8 For the present invention Figure 6 Schematic diagram of the enlarged structure of D in the figure.

[0020] In the figure: 1, mounting plate; 2, mounting block; 3, electromagnetic starter; 4, connecting angle plate; 41, connecting slide plate; 42, side baffle; 43, vertical shock absorber throat; 44, horizontal shock absorber throat; 45, pushing convex rod; 46, sliding block; 47, positioning hole; 48, card frame; 49, first cylindrical shell; 410, positioning shaft; 411, lever; 5, protective fixing device; 51, connecting piece; 52, movable baffle; 53, first threaded hole ; 54. Connecting seat; 55. Second threaded hole; 56. Limiting slot; 57. Connecting shaft; 58. L-shaped rotating card plate; 59. Resistance block; 6. Wiring device; 61. Wiring terminal; 62. Wiring slot; 63. Fixed upper card shell; 64. Movable lower card shell; 65. Flexible clamping pad; 66. Sliding shaft; 67. Limiting slide slot; 68. Trapezoidal lifting block; 69. Second cylindrical sleeve; 610. Connecting spring; 611. Trapezoidal push block. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-Figure 8An embodiment of the present invention is: a vibration-damping, low-noise, energy-saving permanent magnet synchronous motor starting device, comprising a mounting plate 1, a mounting block 2 is fixedly connected to the rear side of the mounting plate 1, an electromagnetic starter 3 is arranged on the front side of the mounting plate 1, a connecting angle plate 4 is fixedly connected to the front side of the mounting plate 1, a connecting slide plate 41 is slidably connected to the inner surface of the connecting angle plate 4, a side baffle plate 42 is fixedly connected to the side of the connecting slide plate 41 close to the electromagnetic starter 3, a vertical shock-absorbing throat 43 is fixedly connected to the side of the connecting slide plate 41 close to the electromagnetic starter 3, and a side baffle plate 42 is fixedly connected to the side of the connecting slide plate 41 close to the electromagnetic starter 3. A lateral shock-absorbing throat 44 is fixedly connected to the side of the connecting slide plate 41, a pushing protruding rod 45 is fixedly connected to the side of the connecting slide plate 41 away from the electromagnetic starter 3, a sliding block 46 is fixedly connected to the side of the side baffle plate 42 away from the electromagnetic starter 3, a positioning hole 47 is provided on the inner side of the sliding block 46, a card frame 48 is fixedly connected to the side of the connecting angle plate 4 away from the side baffle plate 42, a first cylindrical sleeve 49 is fixedly connected to the side of the card frame 48 away from the connecting angle plate 4, a positioning shaft 410 is slidably connected to the inner surface of the first cylindrical sleeve 49, and a shifting rod 411 is fixedly connected to the upper surface of the positioning shaft 410. The vibration generated by the magnetic starter 3 in the process of starting the motor is absorbed by the vertical shock absorber throat 43 and the lateral shock absorber throat 44, thereby reducing the vibration amplitude and noise of the electromagnetic starter 3 and improving the stability of the electromagnetic starter 3 during use. The front side of the mounting plate 1 is provided with a protective fixing device 5 for protecting the electromagnetic starter 3 and quickly installing and disassembling it. The rear side of the mounting plate 1 is provided with a wiring harness device 6 for fixing and protecting the transmission line between the electromagnetic starter 3 and the motor. The sliding block 46 and the side of the connecting angle plate 4 away from the side baffle 42 are in contact with each other, and the card frame 48 and the mounting The two sides of the plate 1 are fixedly connected, a through groove is opened on the upper surface of the first cylindrical sleeve 49, and the inner surface of the through groove and the surface of the lever 411 are in contact with each other, the vertical shock-absorbing throat 43 and the upper and lower sides of the electromagnetic starter 3 are in contact with each other, and the horizontal shock-absorbing throat 44 and the left and right sides of the electromagnetic starter 3 are in contact with each other, and the connecting slide 41 and the side baffle 42 are quickly fixed to the connecting angle plate 4, which further improves the stability of the electromagnetic starter 3 during use, and the sliding block 46 is disengaged from the limit of the card frame 48 and the positioning shaft 410, so that the connecting slide 41 and the side baffle 42 can be quickly moved, thereby improving the convenience of using the device.

[0023] Working principle: install the mounting plate 1 on the wall through the mounting block 2, then pull the connecting slide plate 41 to the front end of the connecting angle plate 4, place the electromagnetic starter 3 between the vertical shock absorber throat 43 and the horizontal shock absorber throat 44, then push the connecting slide plate 41 and the side baffle plate 42 into the connecting angle plate 4 to make the electromagnetic starter 3 fit with the mounting plate 1, connect the transmission line used to connect the electromagnetic starter 3 to the motor with the wiring terminal 61, then insert the transmission line from the front side of the wiring slot 62 into the back side of the wiring slot 62 and finally connect it to the motor, then turn on the electromagnetic starter 3, and the vibration generated by the electromagnetic starter 3 in the process of starting the motor is absorbed by the vertical shock absorber throat 43 and the horizontal shock absorber throat 44, thereby reducing the vibration amplitude and noise of the electromagnetic starter 3 and improving the stability of the electromagnetic starter 3 during use, and when the side baffle plate 42 is pushed backward, the side baffle plate 42 drives the sliding block 46 to move backward, and the arc surface of the sliding block 46 and the arc shape of the positioning shaft 410 After the ends contact, the positioning shaft 410 is pushed toward the inside of the first cylindrical sleeve 49 through the guidance of the arc surface, and the sliding block 46 continues to move backward so that the positioning hole 47 is aligned with the positioning shaft 410. At this time, the elastic restoring action of the restoring spring pushes the positioning shaft 410 to pop out of the first cylindrical sleeve 49 and insert it into the positioning hole 47, thereby clamping the sliding block 46 in the clamping frame 48, thereby enabling the connecting slide plate 41 and the side baffle plate 42 to be quickly fixed to the connecting angle plate 4, further improving the stability of the electromagnetic starter 3 during use. When it is necessary to slide and pull out the connecting slide plate 41 and the side baffle plate 42 forward to facilitate the disassembly of the electromagnetic starter 3, push the lever 411 to make the lever 411 away from the clamping frame 48. At this time, the lever 411 drives the positioning shaft 410 to pull out of the positioning hole 47 so that the sliding block 46 is separated from the limit of the clamping frame 48 and the positioning shaft 410, thereby being able to quickly move the connecting slide plate 41 and the side baffle plate 42, thereby improving the convenience of use of the device.

[0024] See also Figure 1-Figure 8On the basis of the above embodiment, in another embodiment of the present invention, the protective fixing device 5 includes a connecting member 51, a movable baffle 52, a first threaded hole 53, a connecting seat 54, and a second threaded hole 55. The connecting member 51 is fixedly connected to the side of the connecting angle plate 4 away from the sliding block 46. The movable baffle 52 is hinged on the circumferential surface of the connecting member 51. The first threaded hole 53 is provided on the inner side of the movable baffle 52. The connecting seat 54 is fixedly connected to the upper and lower sides of the electromagnetic starter 3. The second threaded hole 55 is provided on the inner side of the connecting seat 54. The movable baffle 52 blocks the upper and lower sides of the electromagnetic starter 3, thereby further protecting the electromagnetic starter 3 and improving the safety of the electromagnetic starter 3. After the L-shaped rotating card plate 58 is rotated, it is inserted into the limit card slot 56 to clamp the connecting seat 54 and the electromagnetic starter 3. The fixing and installation speed of the electromagnetic starter 3 is improved. The protective fixing device 5 also includes a limit slot 56, a connecting shaft 57, an L-shaped rotating clamp plate 58, and a resistance block 59. The limit slot 56 is opened on both sides of the connecting seat 54. The connecting shaft 57 is fixedly connected to the side of the connecting angle plate 4 away from the sliding clamp block 46. The L-shaped rotating clamp plate 58 is hinged on the circumferential surface of the connecting shaft 57. The resistance block 59 is fixedly connected to the bottom end of the pushing protruding rod 45. A torsion spring is arranged at the hinge of the L-shaped rotating clamp plate 58 and the connecting shaft 57, and the circumferential surface of the pushing protruding rod 45 and the L-shaped rotating clamp plate 58 are in contact with each other. The L-shaped rotating clamp plate 58 is rotated and reset to disengage from the limit slot 56. At this time, the electromagnetic starter 3 can be quickly disassembled, which improves the efficiency of installing and disassembling the electromagnetic starter 3, and thus facilitates testing of the electromagnetic starter 3.

[0025] Working principle: Rotate the movable baffle 52 to block the upper and lower sides of the electromagnetic starter 3, thereby further protecting the electromagnetic starter 3 and improving the safety of the electromagnetic starter 3. When the electromagnetic starter 3 needs to be used for a long time, rotate the threaded rod and insert it into the first threaded hole 53 and the second threaded hole 55, so that the movable baffle 52 and the connecting seat 54 are fixed, and then the electromagnetic starter 3 is more stably fixed on the mounting plate 1. When the performance of the electromagnetic starter 3 needs to be tested, push the connecting slide 41 backward, and the connecting slide 41 drives the protruding rod 45 to move backward, and push the protruding rod 45 to contact the L-shaped rotating clamping plate 58. Push it to rotate, and the L-shaped rotating card plate 58 is rotated and inserted into the limit card slot 56 to clamp the connecting seat 54 and the electromagnetic starter 3, thereby improving the fixed installation speed of the electromagnetic starter 3. When the electromagnetic starter 3 needs to be removed, pull the connecting slide 41 forward, and the connecting slide 41 drives the pushing protruding rod 45 to move forward, pushing the protruding rod 45 away from the L-shaped rotating card plate 58. After the L-shaped rotating card plate 58, the elastic reset action of the torsion spring drives the L-shaped rotating card plate 58 to rotate and reset, thereby disengaging from the limit card slot 56. At this time, the electromagnetic starter 3 can be quickly removed, which improves the efficiency of installing and removing the electromagnetic starter 3, and thus facilitates the testing of the electromagnetic starter 3.

[0026] See also Figure 1-Figure 8 On the basis of the above embodiment, in another embodiment of the present invention, the wire harness device 6 includes a wiring terminal 61, a wiring slot 62, a fixed upper card shell 63, a movable lower card shell 64, and a flexible clamping pad 65. The wiring terminal 61 is fixedly connected to the rear side of the electromagnetic starter 3, the wiring slot 62 is opened at the bottom of the mounting plate 1, the fixed upper card shell 63 is fixedly connected to the rear side of the mounting plate 1, the movable lower card shell 64 is arranged below the fixed upper card shell 63, and the flexible clamping pad 65 is fixedly connected to the inner surface of the fixed upper card shell 63. The flexible clamping pad 65 clamps the transmission line between the electromagnetic starter 3 and the motor to prevent the transmission line from being damaged or affecting the starting effect of the motor after being pulled. The flexible clamping pad 65 deforms after contacting the transmission line to prevent the transmission line from being worn during the process of clamping the transmission line. At the same time, it is convenient to fix transmission lines of different thicknesses, thereby improving the applicability of the device. The wire harness device 6 also includes a sliding shaft 66, a limiting slide groove 67, a trapezoidal lifting block 68, a second cylindrical sleeve 69, and a connecting spring 610. , a trapezoidal push block 611, a sliding shaft 66 is fixedly connected to the front side of the movable lower card shell 64, a limiting slide groove 67 is opened at the bottom of the mounting plate 1, a trapezoidal lifting block 68 is fixedly connected to the lower surface of the movable lower card shell 64, a second cylindrical shell 69 is fixedly connected to the front side of the mounting plate 1, a connecting spring 610 is fixedly connected to the inner surface of the second cylindrical shell 69, a trapezoidal push block 611 is fixedly connected to the rear end of the connecting spring 610, a flexible clamping pad 65 is fixedly connected to the inner surface of the movable lower card shell 64, and a sliding shaft 6 6 is slidably connected to the inner surface of the limiting slide groove 67, the front side surface of the movable lower card shell 64 and the rear side surface of the mounting plate 1 are in contact with each other, the front side surface of the trapezoidal push block 611 and the rear side surface of the mounting plate 1 are in contact with each other, the inclined surface of the trapezoidal push block 611 and the inclined surface of the trapezoidal lifting block 68 are in contact with each other, the movable lower card shell 64 moves upward and finally fits with the fixed upper card shell 63 and clamps the transmission line, which improves the convenience of use of the device, and the movable lower card shell 64 descends and releases the transmission line, further improving the convenience of use of the device.

[0027] Working principle: push the movable lower card shell 64 upward to make the movable lower card shell 64 fit with the fixed upper card shell 63. At this time, the movable lower card shell 64 and the fixed upper card shell 63 clamp the transmission line between the electromagnetic starter 3 and the motor through the flexible clamping pad 65 to prevent the transmission line from being damaged or affecting the starting effect of the motor after being pulled, and the flexible clamping pad 65 deforms after contacting the transmission line to prevent the transmission line from being worn during the process of clamping the transmission line. At the same time, it is convenient to fix transmission lines of different thicknesses, which improves the applicability of the device. When the protruding rod 45 is pushed to move backward, the resistance block 59 is driven to move backward. When the resistance block 59 contacts the trapezoidal push block 611, it pushes it to move backward. The trapezoidal push block 611 moves backward When the trapezoidal lifting block 68 is moved upward through the inclined surface, the trapezoidal lifting block 68 slides in the limiting slide groove 67 through the sliding shaft 66 to maintain a straight rise. When the trapezoidal lifting block 68 moves upward, it drives the movable lower card shell 64 to move upward and finally fits with the fixed upper card shell 63 and clamps the transmission line, which improves the convenience of use of the device. After the resistance block 59 moves forward and disengages from the trapezoidal push block 611, the elastic reset action of the connecting spring 610 pulls the trapezoidal push block 611 to move forward and reset. At this time, the trapezoidal lifting block 68 loses the resistance of the trapezoidal push block 611 and descends. The descent of the trapezoidal lifting block 68 drives the movable lower card shell 64 to descend and releases the transmission line, which further improves the convenience of use of the device.

[0028] The present invention provides a vibration-damping, low-noise, energy-saving permanent magnet synchronous motor starting device. There are many methods and ways to implement the technical solution. The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A vibration-reducing and low-noise energy-saving permanent magnet synchronous motor starting device, comprising a mounting plate (1), characterized in that: The rear side surface of the mounting plate (1) is fixedly connected to a mounting block (2); the front side surface of the mounting plate (1) is provided with an electromagnetic starter (3); the front side surface of the mounting plate (1) is fixedly connected to a connecting angle plate (4); the inner surface of the connecting angle plate (4) is slidably connected to a connecting slide plate (41); a side of the connecting slide plate (41) close to the electromagnetic starter (3) is fixedly connected to a side baffle plate (42); a side of the connecting slide plate (41) close to the electromagnetic starter (3) is fixedly connected to a vertical shock absorbing throat (43); a side of the side baffle plate (42) close to the electromagnetic starter (3) is fixedly connected to a horizontal shock absorbing throat (44); (41) A pushing protruding rod (45) is fixedly connected to the side away from the electromagnetic starter (3); a sliding block (46) is fixedly connected to the side away from the electromagnetic starter (3) of the side baffle (42); a positioning hole (47) is provided on the inner side of the sliding block (46); a card frame (48) is fixedly connected to the side away from the side baffle (42) of the connecting angle plate (4); a first cylindrical sleeve (49) is fixedly connected to the side away from the connecting angle plate (4); a positioning shaft (410) is slidably connected to the inner surface of the first cylindrical sleeve (49); and a shifting rod (411) is fixedly connected to the upper surface of the positioning shaft (410); The front side of the mounting plate (1) is provided with a protective fixing device (5) for protecting the electromagnetic starter (3) and for quickly installing and removing the electromagnetic starter (3), and the rear side of the mounting plate (1) is provided with a wire harness device (6) for fixing and protecting the transmission line between the electromagnetic starter (3) and the motor.

2. The vibration-reducing and low-noise energy-saving permanent magnet synchronous motor starting device according to claim 1 is characterized in that: The sliding block (46) and the side of the connecting angle plate (4) away from the side baffle (42) are in contact with each other, the card frame (48) and the mounting plate (1) are fixedly connected on both sides, the upper surface of the first cylindrical shell (49) is provided with a through groove, and the inner surface of the through groove and the surface of the lever (411) are in contact with each other, the vertical shock absorber throat (43) and the electromagnetic starter (3) are in contact with each other on the upper and lower sides, and the horizontal shock absorber throat (44) and the electromagnetic starter (3) are in contact with each other on the left and right sides.

3. The vibration-reducing and low-noise energy-saving permanent magnet synchronous motor starting device according to claim 2 is characterized in that: The protective fixing device (5) comprises a connecting piece (51), a movable baffle (52), a first threaded hole (53), a connecting seat (54), and a second threaded hole (55); the connecting piece (51) is fixedly connected to a side of the connecting angle plate (4) away from the sliding block (46); the movable baffle (52) is hinged on the circumferential surface of the connecting piece (51); the first threaded hole (53) is provided on the inner side of the movable baffle (52); the connecting seat (54) is fixedly connected to the upper and lower sides of the electromagnetic starter (3); and the second threaded hole (55) is provided on the inner side of the connecting seat (54).

4. The vibration-reducing and low-noise energy-saving permanent magnet synchronous motor starting device according to claim 3 is characterized in that: The protective fixing device (5) further comprises a limit slot (56), a connecting shaft (57), an L-shaped rotating card plate (58), and a resistance block (59); the limit slot (56) is provided on both sides of the connecting seat (54); the connecting shaft (57) is fixedly connected to a side of the connecting angle plate (4) away from the sliding card block (46); the L-shaped rotating card plate (58) is hinged on the circumferential surface of the connecting shaft (57); and the resistance block (59) is fixedly connected to the bottom end of the pushing protruding rod (45).

5. The vibration-reducing and low-noise energy-saving permanent magnet synchronous motor starting device according to claim 4 is characterized in that: A torsion spring is provided at the hinged position between the L-shaped rotating clamping plate (58) and the connecting shaft (57), and the circumferential surface of the pushing convex rod (45) and the L-shaped rotating clamping plate (58) are in contact with each other.

6. The vibration-reducing and low-noise energy-saving permanent magnet synchronous motor starting device according to claim 5 is characterized in that: The wiring harness device (6) comprises a wiring terminal (61), a wiring slot (62), a fixed upper housing (63), a movable lower housing (64), and a flexible clamping pad (65); the wiring terminal (61) is fixedly connected to the rear side of the electromagnetic starter (3); the wiring slot (62) is provided at the bottom of the mounting plate (1); the fixed upper housing (63) is fixedly connected to the rear side of the mounting plate (1); the movable lower housing (64) is arranged below the fixed upper housing (63); and the flexible clamping pad (65) is fixedly connected to the inner surface of the fixed upper housing (63).

7. The vibration-reducing and low-noise energy-saving permanent magnet synchronous motor starting device according to claim 6 is characterized in that: The wiring harness device (6) also includes a sliding shaft (66), a limiting sliding groove (67), a trapezoidal lifting block (68), a second cylindrical sleeve (69), a connecting spring (610), and a trapezoidal push block (611). The sliding shaft (66) is fixedly connected to the front side of the movable lower jamming shell (64), the limiting sliding groove (67) is opened at the bottom of the mounting plate (1), the trapezoidal lifting block (68) is fixedly connected to the lower surface of the movable lower jamming shell (64), the second cylindrical sleeve (69) is fixedly connected to the front side of the mounting plate (1), the connecting spring (610) is fixedly connected to the inner surface of the second cylindrical sleeve (69), and the trapezoidal push block (611) is fixedly connected to the rear end of the connecting spring (610).

8. The vibration-reducing and low-noise energy-saving permanent magnet synchronous motor starting device according to claim 7 is characterized in that: The flexible clamping pad (65) is fixedly connected to the inner surface of the movable lower locking shell (64), the sliding shaft (66) is slidably connected to the inner surface of the limiting sliding groove (67), the front side surface of the movable lower locking shell (64) and the rear side surface of the mounting plate (1) are in contact with each other, the front side surface of the trapezoidal push block (611) and the rear side surface of the mounting plate (1) are in contact with each other, and the inclined surface of the trapezoidal push block (611) and the inclined surface of the trapezoidal lifting block (68) are in contact with each other.

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