Variable-frequency governor with buffer device

Abstract

The utility model provides a variable-frequency governor with a buffer device, which comprises a variable-frequency governor body and a buffer assembly, and a placing plate is welded at the bottom of the variable-frequency governor body. The buffering assembly comprises a buffering box, a limiting hole, a movable plate, an elastic connecting rod, a supporting rod, a buffering spring, a sliding block, a polished rod, a sliding groove, a sliding block, a fixed block and a damping shock absorber. Vibration generated when the variable-frequency governor body encounters a high-altitude falling object or collides with the outside is transmitted to the supporting rod, the supporting rod can drive the movable plate to move, and the force received by the movable plate can be transmitted to the sliding block through the action of the elastic connecting rod and moves towards the outer side; the variable-frequency governor has the advantages that the variable-frequency governor body can be protected, the buffering effect can be achieved through the buffering springs, the strength is reduced, meanwhile, the damping effect on the movable plate can be achieved through the damping shock absorbers and the damping springs, the variable-frequency governor body can be effectively damped and buffered through cooperation, then the variable-frequency governor body is protected, and the service life of the variable-frequency governor body is prolonged.

Description

Technical Field

[0001] The utility model relates to a variable frequency speed regulator with a buffer device, belonging to the technical field of variable frequency speed regulators. Background Art

[0002] A variable frequency speed regulator is a device that converts industrial frequency power (50Hz or 60Hz) into AC power of various frequencies to achieve variable speed operation of the motor. The control circuit completes the control of the main circuit, the rectifier circuit converts AC power into DC power, the DC intermediate circuit smoothes and filters the output of the rectifier circuit, and the inverter circuit converts DC power into AC power.

[0003] During the installation process, the bottom of the existing variable frequency speed regulator needs to be in contact with the ground, which results in unsatisfactory overall shock absorption and buffering effect. Since it is exposed to the outside world, it will produce severe vibrations when hit or by falling objects from high altitude, which can easily cause damage to the internal part of the equipment body, thereby reducing the service life of the variable frequency speed regulator.

[0004] To this end, a variable frequency speed regulator with a buffer device is proposed. Utility Model Content

[0005] In view of this, the utility model provides a variable frequency speed regulator with a buffer device to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial choice.

[0006] The technical solution of the utility model is implemented as follows: a variable frequency speed regulator with a buffer device, comprising a variable frequency speed regulator body and a buffer assembly, a placement plate is welded at the bottom of the variable frequency speed regulator body, the buffer assembly comprises a buffer box, a limit hole, a movable plate, an elastic connecting rod, a support rod, a buffer spring, a sliding block, a light rod, a slide groove, a slider, a fixed block, a damping shock absorber and a shock-absorbing spring, and the top of the support rod is welded to the bottom of the placement plate.

[0007] Further preferably, the fixed block is fixedly connected to the left and right sides of the bottom of the inner cavity of the buffer box, the light rod is fixedly connected to the inner side of the fixed block, the sliding block is slidably connected to the two sides of the surface of the light rod, the buffer spring is sleeved on both sides of the surface of the light rod, the damping shock absorber is fixedly connected to the top of the fixed block, the shock-absorbing spring is sleeved on the surface of the damping shock absorber, the movable plate is fixedly connected to the top of the damping shock absorber, the top of the elastic connecting rod is movably connected to the two sides of the bottom of the movable plate through a rotating shaft, and one end of the elastic connecting rod is movably connected to the top of the sliding block through a rotating shaft, and the support rod is welded to the left and right sides of the top of the movable plate.

[0008] Further preferably, the slide groove is opened at the bottom of the inner cavity of the buffer box, the sliding block is welded to the bottom of the sliding block, and the bottom of the sliding block is slidably connected in the slide groove.

[0009] Further preferably, the limiting holes are opened on the left and right sides of the top of the buffer box, the top of the support rod passes through the limiting holes and extends to the top of the buffer box, and the outer wall of the support rod fits tightly inside the limiting holes.

[0010] Further preferably, a base is welded to the bottom of the buffer box, and anchor screws are threadedly connected around the inner surface of the base.

[0011] Further preferably, a plurality of heat dissipation slots are provided on both the left and right sides of the variable frequency speed regulator body, a slide seat is welded on both sides of the variable frequency speed regulator body, and a dustproof net is slidably connected inside the slide seat.

[0012] Further preferably, L-shaped plates are provided at the bottom of both sides of the variable frequency speed regulator body, and the L-shaped plates are threadedly connected to the variable frequency speed regulator body and the placement plate respectively through fastening screws.

[0013] The embodiment of the utility model has the following advantages due to the adoption of the above technical solution:

[0014] 1. The utility model transmits the vibration generated by the frequency conversion speed regulator body when encountering falling objects from high altitude or colliding with the outside world to the support rod, and the support rod drives the movable plate to produce displacement. The force received by the movable plate can be transmitted to the sliding block and moved outward through the action of the elastic connecting rod. The setting of the buffer spring can play a buffering role and reduce the force. At the same time, the setting of the damping shock absorber and the shock absorbing spring can play a shock absorbing role on the movable plate. Through the above cooperation, the frequency conversion speed regulator body can be effectively shock-absorbing and buffered, thereby protecting it and increasing its service life.

[0015] 2. The utility model can limit the moving trajectory of the sliding block through the sliding groove and the sliding block, thereby improving the stability of the sliding block during movement. By setting the limiting hole, the support rod can be limited to prevent it from deflecting during the up and down movement. By setting the base and the anchor screws, the whole can be conveniently connected and fixed to the ground. By setting the dustproof net, it can prevent external dust from entering the frequency converter body through the heat dissipation groove, which can achieve the dustproof effect while playing the role of heat dissipation. By setting the L-shaped plate, the fixing effect of the frequency converter body and the placement plate can be increased to prevent tipping.

[0016] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the buffer component of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the dustproof net of the utility model when it is disassembled;

[0021] Figure 4 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0022] Figure numerals: 1. frequency converter body; 2. dust screen; 3. slide seat; 4. L-shaped plate; 5. buffer assembly; 501. buffer box; 502. limit hole; 503. movable plate; 504. elastic connecting rod; 505. support rod; 506. buffer spring; 507. sliding block; 508. bare rod; 509. slide groove; 510. slider; 511. fixed block; 512. damping shock absorber; 513. shock-absorbing spring; 6. base; 7. anchor screw; 8. heat sink; 9. placement plate. DETAILED DESCRIPTION

[0023] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0024] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0025] Example 1

[0026] like Figure 1-4As shown, the embodiment of the utility model provides a variable frequency speed regulator with a buffer device, including a variable frequency speed regulator body 1 and a buffer assembly 5, a placement plate 9 is welded at the bottom of the variable frequency speed regulator body 1, and the buffer assembly 5 includes a buffer box 501, a limiting hole 502, a movable plate 503, an elastic connecting rod 504, a support rod 505, a buffer spring 506, a sliding block 507, a light rod 508, a slide groove 509, a slider 510, a fixed block 511, a damping shock absorber 512 and a shock absorbing spring 513, the top of the support rod 505 is welded to the bottom of the placement plate 9, the fixed block 511 is fixedly connected to the left and right sides of the bottom of the inner cavity of the buffer box 501, and the light rod 508 is fixedly connected to the inner side of the fixed block 511, the sliding block 507 is slidably connected to both sides of the surface of the light rod 508, the buffer spring 506 is sleeved on both sides of the surface of the light rod 508, the damping shock absorber 512 is fixedly connected to the top of the fixed block 511, the shock-absorbing spring 513 is sleeved on the surface of the damping shock absorber 512, the movable plate 503 is fixedly connected to the top of the damping shock absorber 512, the top of the elastic connecting rod 504 is movably connected to both sides of the bottom of the movable plate 503 through a rotating shaft, and one end of the elastic connecting rod 504 is movably connected to the top of the sliding block 507 through a rotating shaft, and the support rod 505 is welded to the left and right sides of the top of the movable plate 503.

[0027] The vibration generated by the frequency converter body 1 when encountering falling objects from high altitude or colliding with the outside world is transmitted to the support rod 505, and the support rod 505 will drive the movable plate 503 to move. The elastic connecting rod 504 can transmit the force received by the movable plate 503 to the sliding block 507 and move it outward. The setting of the buffer spring 506 can play a buffering role to reduce the force. At the same time, the setting of the damping shock absorber 512 and the shock absorbing spring 513 can play a shock absorbing role for the movable plate 503. Through the above cooperation, the frequency converter body 1 can be effectively shock-absorbing and buffered, thereby protecting it and increasing its service life.

[0028] Example 2

[0029] In one embodiment, a slide groove 509 is opened at the bottom of the inner cavity of the buffer box 501, a slider 510 is welded to the bottom of the sliding block 507, and the bottom of the slider 510 is slidably connected to the slide groove 509, and a limiting hole 502 is opened on the left and right sides of the top of the buffer box 501, and the top of the support rod 505 passes through the limiting hole 502 and extends to the top of the buffer box 501, and the outer wall of the support rod 505 is tightly fitted in the limiting hole 502, and a base 6 is welded to the bottom of the buffer box 501, and the inner surface of the base 6 is threadedly connected with anchor screws 7 around, and multiple heat dissipation grooves 8 are opened on the left and right sides of the variable frequency speed regulator body 1, and slide seats 3 are welded on both sides of the variable frequency speed regulator body 1, and a dustproof net 2 is slidably connected in the slide seat 3, and L-shaped plates 4 are provided at the bottom of both sides of the variable frequency speed regulator body 1, and the L-shaped plates 4 are threadedly connected to the variable frequency speed regulator body 1 and the placement plate 9 by fastening screws.

[0030] By means of the slide groove 509 and the slider 510, the moving trajectory of the sliding block 507 can be limited to improve the stability of the sliding block 507 during movement; by setting the limiting hole 502, the support rod 505 can be limited to prevent it from deflecting during the up and down movement; by setting the base 6 and the anchor screw 7, the overall connection and fixation to the ground can be facilitated; by setting the dustproof net 2, external dust can be prevented from entering the frequency converter body 1 through the heat dissipation groove 8, which can achieve a dustproof effect while playing a heat dissipation role; by setting the L-shaped plate 4, the fixing effect of the frequency converter body 1 and the placement plate 9 can be increased to prevent tipping.

[0031] When the utility model is working: the vibration generated by the frequency conversion speed regulator body 1 when encountering falling objects from high altitude or colliding with the outside world is transmitted to the support rod 505, and the support rod 505 drives the movable plate 503 to move downward. By arranging the damping shock absorber 512 and the shock absorbing spring 513, the movable plate 503 can be damped and part of the force can be effectively offset. At the same time, the movable plate 503 is driven by the elastic connecting rod 504 to slide the sliding block 507 along the surface of the light rod 508 outward. The sliding block 507 squeezes the buffer spring 506 and deforms due to the influence of the force, which can play a buffering role, further reducing the downward pressure of the movable plate 503. Through the above-mentioned cooperation, the frequency conversion speed regulator body 1 can be effectively damped and buffered, thereby protecting it and improving its service life.

[0032] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of various changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A variable frequency speed regulator with a buffer device, characterized in that: The invention comprises a variable frequency speed regulator body (1) and a buffer assembly (5), wherein a placement plate (9) is welded at the bottom of the variable frequency speed regulator body (1), and the buffer assembly (5) comprises a buffer box (501), a limiting hole (502), a movable plate (503), an elastic connecting rod (504), a support rod (505), a buffer spring (506), a sliding block (507), a light rod (508), a sliding groove (509), a slider (510), a fixed block (511), a damping shock absorber (512) and a shock absorbing spring (513), and the top of the support rod (505) is welded to the bottom of the placement plate (9).

2. A variable frequency speed regulator with a buffer device according to claim 1, characterized in that: The fixed block (511) is fixedly connected to the left and right sides of the bottom of the inner cavity of the buffer box (501); the light rod (508) is fixedly connected to the inner side of the fixed block (511); the sliding block (507) is slidably connected to the two sides of the surface of the light rod (508); the buffer spring (506) is sleeved on the two sides of the surface of the light rod (508); the damping shock absorber (512) is fixedly connected to the top of the fixed block (511); the shock absorbing spring (513) is sleeved on the surface of the damping shock absorber (512); the movable plate (503) is fixedly connected to the top of the damping shock absorber (512); the top of the elastic connecting rod (504) is movably connected to the two sides of the bottom of the movable plate (503) through a rotating shaft, and one end of the elastic connecting rod (504) is movably connected to the top of the sliding block (507) through a rotating shaft; and the support rod (505) is welded to the left and right sides of the top of the movable plate (503).

3. The variable frequency speed regulator with a buffer device according to claim 1, characterized in that: The slide groove (509) is opened at the bottom of the inner cavity of the buffer box (501), the slider (510) is welded to the bottom of the sliding block (507), and the bottom of the slider (510) is slidably connected in the slide groove (509).

4. The variable frequency speed regulator with a buffer device according to claim 1, characterized in that: The limiting holes (502) are provided on the left and right sides of the top of the buffer box (501), the top of the support rod (505) passes through the limiting holes (502) and extends to the top of the buffer box (501), and the outer wall of the support rod (505) is tightly fitted in the limiting holes (502).

5. The variable frequency speed regulator with a buffer device according to claim 1, characterized in that: A base (6) is welded to the bottom of the buffer box (501), and anchor screws (7) are threadedly connected to the inner surface of the base (6) on all sides.

6. The variable frequency speed regulator with a buffer device according to claim 1, characterized in that: A plurality of heat dissipation slots (8) are provided on both left and right sides of the variable frequency speed regulator body (1), a slide seat (3) is welded on both sides of the variable frequency speed regulator body (1), and a dustproof net (2) is slidably connected inside the slide seat (3).

7. The variable frequency speed regulator with a buffer device according to claim 1, characterized in that: L-shaped plates (4) are provided at the bottom of both sides of the variable frequency speed regulator body (1), and the L-shaped plates (4) are respectively threadedly connected to the variable frequency speed regulator body (1) and the placement plate (9) through fastening screws.

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