Lightweight shared bearing mechanism for frequency converter

Abstract

The utility model discloses a frequency converter lightweight shared bearing mechanism, relates to the frequency converter technology field, and comprises a bearing bottom plate, the top of the bearing bottom plate is provided with two mirrored positioning mechanisms, the top of the bearing bottom plate is provided with a chute 1, the left side of the inner wall of the chute 1 is movably provided with a right-hand and left-hand threaded rod 1, and the right-hand and left-hand threaded rod 1 is movably provided with a right-hand and left-hand threaded rod 2. The right end of the first right-and-left threaded rod penetrates to the right side of the bearing bottom plate and is fixedly provided with a first rotary knob, first threaded walls with opposite threads are arranged on the left side and the right side of the outer wall of the first right-and-left threaded rod, and moving blocks are installed on the outer walls of the two first threaded walls in a threaded mode. According to the utility model, the width positioning plate capable of controlling the front-back width, the L-shaped limiting plate and the clamping driving box capable of controlling the left-right length are matched with one another, so that more frequency converters with different sizes can be shared and supported without being aligned with a limiting groove, and the applicability of the supporting mechanism to the frequency converters is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of frequency converters, in particular to a lightweight shared supporting mechanism for frequency converters. Background Art

[0002] Frequency converters are a common device in electric vehicles. They change the frequency of the motor current to make the motor rotate at different speeds, thereby changing the driving speed of the electric vehicle. In the actual production process of frequency converters, due to their large size and weight, the frequency converters are generally installed on a supporting mechanism, and then the frequency converter and the supporting mechanism are transferred to the designated workstation together. The existing technology has the following problems:

[0003] Chinese patent document CN117228125A discloses a lightweight shared support mechanism for frequency converters. The mechanism comprises a support base and several support columns, wherein the bottoms of the support columns are mounted on the support base and are arranged away from the axis of the support base. The tops of the support columns are provided with several limiting grooves, each corresponding to a different type of frequency converter. When a frequency converter is placed in the support mechanism, the inner walls of the limiting grooves tightly fit the frequency converter. This invention allows different types of frequency converters to be stably placed in the support mechanism, thereby increasing the applicability of the support mechanism.

[0004] In the above-mentioned documents, although the bottom of the inverter can be observed through the mirror assembly, in order to facilitate alignment of the limit slots, since the four supporting columns are fixedly installed on the top of the supporting base plate, once the width of the inverter is smaller than the distance between the supporting columns, stable supporting work cannot be performed. At the same time, in the above-mentioned documents, each time the inverter is placed on the supporting base plate, it is necessary to observe the position of the limit slots for alignment. When large-scale production is carried out, it will lead to slow positioning and supporting efficiency and the speed of transfer to the designated workstation. Utility Model Content

[0005] The utility model provides a lightweight common supporting mechanism for a frequency converter, so as to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A lightweight shared supporting mechanism for a frequency converter comprises a supporting base plate, two mirror-image positioning mechanisms are provided on the top of the supporting base plate, a slide groove is provided on the top of the supporting base plate, a positive and negative threaded rod is movably installed on the left side of the inner wall of the slide groove, the right end of the positive and negative threaded rod passes through the right side of the supporting base plate and is fixedly installed with a knob, and threaded walls with opposite threads are provided on the left and right sides of the outer wall of the positive and negative threaded rod, and moving blocks are threadedly installed on the outer walls of the two threaded walls, and the two moving blocks are slidably connected to the slide groove.

[0008] The two positioning mechanisms both include a clamping drive box, width positioning plates are provided on the front and rear sides of the top of the two clamping drive boxes, a buffer mechanism is provided at the top center of the two clamping drive boxes, and the tops of the two moving blocks are respectively fixedly connected to the bottoms of the two clamping drive boxes.

[0009] A further improvement of the technical solution of the present invention is that four anti-slip bottom pads are fixedly installed in a rectangular array at the bottom of the supporting base plate.

[0010] A further improvement of the technical solution of the present utility model is that: two positive and negative threaded rods are movably installed on the front side of the inner wall of the clamping drive box, the rear end of the two positive and negative threaded rods passes through the rear side of the clamping drive box and is fixedly installed with a knob two, the front and rear sides of the outer wall of the two positive and negative threaded rods are provided with two threaded walls with opposite threads, the outer walls of the two threaded walls are threadedly installed with an inverted T-shaped movable plate, the front and rear sides of the top of the clamping drive box are provided with two slide grooves, the vertical tops of the two inverted T-shaped movable plates respectively pass through two slide grooves to the top of the clamping drive box and are fixedly connected to the bottom of the width positioning plate.

[0011] A further improvement of the technical solution of the present utility model is that L-shaped limiting plates are fixedly installed on the opposite back surfaces of the two clamping drive boxes.

[0012] A further improvement of the technical solution of the present utility model is that: a plurality of compression springs are fixedly installed on the opposite surfaces of the inner walls of the two width positioning plates, a pressure plate is fixedly installed on the other end of the plurality of compression springs, the pressure plate is slidably connected to the inner cavity of the width positioning plate, a vertical right-angled trapezoidal clamp is fixedly installed on the side of the pressure plate away from the compression spring, the opposite ends of the two opposing vertical right-angled trapezoidal clamps respectively penetrate the opposite surfaces of the two width positioning plates, and the inclined surface of the vertical right-angled trapezoidal clamp is located at the top.

[0013] A further improvement of the technical solution of the present utility model is that: the buffer mechanism includes a base block, a buffer spring is fixedly installed at the eccentric top of the base block, the top of the buffer spring is fixedly installed with a converter placement top plate, the bottom of the converter placement top plate is fixedly installed with a damper, the bottom end of the damper is fixedly connected to the top center of the base block, and the damper is located on the inner side of the buffer spring.

[0014] Due to the adoption of the above technical solution, the present invention has achieved the following technical advancements compared to the prior art:

[0015] 1. The utility model provides a lightweight shared support mechanism for frequency converters. Through the cooperation between the width positioning plate that can control the front and rear widths, the L-shaped limit plate, and the clamping drive box that can control the left and right lengths, more frequency converters of different sizes can be shared and supported without the need to align them with the limit slots, thereby further improving the applicability of the support mechanism to the frequency converter.

[0016] 2. The utility model provides a lightweight shared supporting mechanism for the inverter. Through the mutual cooperation between the vertical right-angle trapezoidal clamping block, the compression spring, and the buffer mechanism, the supporting mechanism has a buffering effect and can also quickly clamp and position the inverter. There is no need for manual observation and repeated alignment and placement, which improves the placement efficiency between the inverter and the supporting mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the structure of the utility model;

[0018] Figure 2 This is a cross-sectional schematic diagram of the supporting base plate of the structure of the utility model;

[0019] Figure 3 This is a cross-sectional diagram of the clamping drive box of the utility model structure;

[0020] Figure 4 This is a schematic cross-sectional view of the width positioning plate of the structure of the utility model;

[0021] Figure 5 This is a schematic diagram of the buffer mechanism of the utility model structure.

[0022] In the figure: 1. Supporting base plate; 11. Anti-slip bottom pad; 12. Slide groove 1; 121. Forward and reverse threaded rod 1; 122. Knob 1; 123. Moving block; 2. Positioning mechanism; 21. Clamping drive box; 211. Forward and reverse threaded rod 2; 212. Knob 2; 213. Inverted T-shaped moving plate; 214. L-shaped limit plate; 215. Slide groove 2; 22. Width positioning plate; 221. Compression spring; 222. Pressing plate; 223. Vertical right-angle trapezoidal clamping block; 23. Buffer mechanism; 231. Base block; 232. Buffer spring; 233. Inverter placement top plate; 234. Damper. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] like Figure 1 、 Figure 2As shown, the utility model provides a lightweight shared supporting mechanism for a frequency converter, including a supporting base plate 1, two mirror-image positioning mechanisms 2 are provided on the top of the supporting base plate 1, a slide groove 12 is provided on the top of the supporting base plate 1, a positive and negative threaded rod 121 is movably installed on the left side of the inner wall of the slide groove 12, the right end of the positive and negative threaded rod 121 passes through the right side of the supporting base plate 1 and is fixedly installed with a knob 122, and the outer wall of the positive and negative threaded rod 121 is provided with a threaded wall 1 with opposite threads on both sides, and the outer walls of the two threaded walls 1 are threadedly installed with a moving block 123, and the two moving blocks 123 are both slidably connected to the slide groove 12 Next, the two positioning mechanisms 2 each include a clamping drive box 21, and width positioning plates 22 are provided on the front and rear sides of the tops of the two clamping drive boxes 21. A buffer mechanism 23 is provided at the center of the tops of the two clamping drive boxes 21. The tops of the two moving blocks 123 are fixedly connected to the bottoms of the two clamping drive boxes 21, respectively. Four anti-slip bottom pads 11 are fixedly installed on the rectangular array at the bottom of the supporting base plate 1. When the supporting base plate 1 is used, the four rubber anti-slip bottom pads 11 at the bottom of the supporting base plate 1 can further improve the stability of the supporting base plate 1 when it is placed, thereby avoiding a large-scale displacement of the position of the supporting base plate 1 when the inverter is placed.

[0025] When processing the same batch of frequency converters, the knob 122 on the right side of the supporting base plate 1 can be rotated to drive the forward and reverse threaded rod 121 in the slide groove 12 to rotate, and then the two moving blocks 123 are connected to the threaded walls of the opposite threads on the left and right sides of the forward and reverse threaded rod 121 to drive the two clamping drive boxes 21 closer to each other, which is convenient for controlling the different lengths of the supporting frequency converters.

[0026] like Figure 3 As shown, a second positive and negative threaded rod 211 is movably installed on the front side of the inner wall of the clamping drive box 21, and the rear end of the second positive and negative threaded rod 211 passes through the rear side of the clamping drive box 21 and is fixedly installed with a second knob 212. The outer walls of the second positive and negative threaded rod 211 are provided with a second threaded wall with opposite threads on the front and back sides, and the outer walls of the two threaded walls are threadedly installed with an inverted T-shaped movable plate 213. A second slide groove 215 is provided on the front and back sides of the top of the clamping drive box 21. The vertical top ends of the two inverted T-shaped movable plates 213 respectively pass through the two slide grooves 215 to the top of the clamping drive box 21 and are fixedly connected to the bottom of the width positioning plate 22. The opposite back sides of the two clamping drive boxes 21 are fixedly installed with an L-shaped limit plate 214.

[0027] By rotating the knob 212 at the rear end of the two clamping drive boxes 21, the forward and reverse threaded rods 211 in the inner cavity of the clamping drive box 21 can be driven to rotate, so that the threaded walls 2 of the reverse threaded rods 211 on the front and rear sides thereof can be used to realize a threaded connection with the inverted T-shaped movable plate 213. The movement of the inverted T-shaped movable plate 213 vertically on the inner side of the slide groove 215 can drive the two width positioning plates 22 to move closer to each other, thereby realizing the adjustment of the supporting range of the inverter width. At the same time, the L-shaped limit plates 214 on the back sides of the two clamping drive boxes 21 can be used to effectively place the inverter vertically and then deviate and shake left and right after it is placed on the supporting base plate.

[0028] like Figure 4 、 Figure 5 As shown, a plurality of compression springs 221 are fixedly installed on the opposite surfaces of the inner walls of the two relative width positioning plates 22, and a pressure plate 222 is fixedly installed on the other ends of the plurality of compression springs 221. The pressure plate 222 is slidably connected to the inner cavity of the width positioning plate 22, and a vertical right-angled trapezoidal clamping block 223 is fixedly installed on the side of the pressure plate 222 away from the compression spring 221. The opposite ends of the two opposing vertical right-angled trapezoidal clamping blocks 223 respectively penetrate the opposite surfaces of the two width positioning plates 22, and the inclined surface of the vertical right-angled trapezoidal clamping block 223 is located at the top. The buffer mechanism 23 includes a base block 231, and a buffer spring 232 is fixedly installed at the eccentric top of the base block 231. The top of the buffer spring 232 is fixedly installed with an inverter placement top plate 233, and the bottom of the inverter placement top plate 233 is fixedly installed with a damper 234. The bottom end of the damper 234 is fixedly connected to the top circle center of the base block 231, and the damper 234 is located on the inner side of the buffer spring 232.

[0029] When the approximate supporting range is adjusted, the inverter can be placed directly on the top of the two buffer mechanisms 23, and the top plate 233 of the inverter is placed in contact with the inverter so that the downward impact force of the inverter is buffered by the compression of the buffer spring 232. At the same time, the damper 234 located inside the buffer spring 232 at the top of the base block 231 can absorb the elastic potential energy of the buffer spring 232 to prevent the buffer spring 232 from rebounding repeatedly, thereby buffering the impact force of the inverter placement. At the same time, when placing it, the top inclined surface of the vertical right-angled trapezoidal clamping block 223 on the opposite surfaces of the two opposite width positioning plates 22 is squeezed, so that the vertical right-angled trapezoidal clamping block 223 uses the pressure plate 222 to compress the compression spring 221 in the inner cavity of the width positioning plate 22, and uses the elasticity of several compression springs 221 in the inner cavity of the width positioning plate 22 to make the vertical surface of the vertical right-angled trapezoidal clamping block 223 close to the front and rear sides of the inverter, thereby completing the stable clamping and support of the inverter.

[0030] The following is a detailed description of the working principle of the inverter's lightweight shared support mechanism.

[0031] like Figure 1-5As shown, when processing the inverters of the same batch, the forward and reverse threaded rod 121 in the slide groove 12 can be driven to rotate by rotating the knob 122 on the right side of the supporting base plate 1, so that the two moving blocks 123 are connected with the threaded walls of the opposite threads on the left and right sides of the forward and reverse threaded rod 121 to drive the two clamping drive boxes 21 to approach each other, which is convenient for controlling the different lengths of the supported inverters. At the same time, the forward and reverse threaded rod 211 in the inner cavity of the clamping drive box 21 can be driven to rotate by rotating the knob 212 at the rear end of the two clamping drive boxes 21. The threaded wall 211 with opposite threads on the front and back sides of the second forward and reverse threaded rod 211 is used to realize the threaded connection with the inverted T-shaped movable plate 213. The vertical movement of the inverted T-shaped movable plate 213 on the inner side of the second slide groove 215 can drive the two width positioning plates 22 to move closer to each other, so as to adjust the supporting range of the inverter width. At the same time, the vertical position of the two L-shaped limit plates 214 on the back sides of the two clamping drive boxes 21 can effectively place the inverter on the supporting bottom plate and then deviate and shake left and right. When the approximate supporting range is adjusted, the inverter can be directly placed on the two The top of the buffer mechanism 23 is placed on the top plate 233 of the inverter so that the downward impact of the inverter is buffered by the compression of the buffer spring 232. At the same time, the damper 234 located inside the buffer spring 232 at the top of the base block 231 can absorb the elastic potential energy of the buffer spring 232 to avoid repeated rebound of the buffer spring 232, thereby buffering the impact force of the inverter placement. At the same time, when placing the inverter, the top inclined surface of the vertical right-angled trapezoidal clamping block 223 on the opposite sides of the two opposite width positioning plates 22 is squeezed to make the vertical The right-angled trapezoidal clamp 223 uses the pressure plate 222 to compress the compression spring 221 in the inner cavity of the width positioning plate 22, and uses the elasticity of several compression springs 221 in the inner cavity of the width positioning plate 22 to make the vertical surface of the vertical right-angled trapezoidal clamp 223 close to the front and back sides of the inverter, thereby completing the stable clamping and support of the inverter. When using the supporting base plate 1, the four rubber anti-slip bottom pads 11 at the bottom of the supporting base plate 1 can further improve the stability of the supporting base plate 1 when it is placed, thereby avoiding large-scale displacement of the position of the supporting base plate 1 when the inverter is placed.

[0032] While the present invention has been generally described above, it is readily apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A lightweight common support mechanism for a frequency converter, comprising a support base plate (1), characterized in that: The top of the supporting base plate (1) is provided with two mirror-image positioning mechanisms (2), the top of the supporting base plate (1) is provided with a slide groove (12), the left side of the inner wall of the slide groove (12) is movably provided with a positive and negative threaded rod (121), the right end of the positive and negative threaded rod (121) passes through the right side of the supporting base plate (1) and is fixedly provided with a knob (122), the left and right sides of the outer wall of the positive and negative threaded rod (121) are provided with threaded walls with opposite threads, the outer walls of the two threaded walls are threadedly provided with moving blocks (123), and the two moving blocks (123) are slidably connected to the slide groove (12); The two positioning mechanisms (2) each include a clamping drive box (21), width positioning plates (22) are provided on both the front and rear sides of the top of the two clamping drive boxes (21), a buffer mechanism (23) is provided at the center of the top of the two clamping drive boxes (21), and the tops of the two moving blocks (123) are fixedly connected to the bottoms of the two clamping drive boxes (21), respectively.

2. The lightweight common support mechanism for frequency converters according to claim 1, characterized in that: Four anti-slip bottom pads (11) are fixedly mounted in a rectangular array on the bottom of the supporting base plate (1).

3. The lightweight common support mechanism for frequency converters according to claim 1, characterized in that: The front side of the inner wall of the clamping drive box (21) is movably mounted with two forward and reverse threaded rods (211), the rear end of the two forward and reverse threaded rods (211) passes through the rear side of the clamping drive box (21) and is fixedly mounted with two knobs (212), the front and rear sides of the outer wall of the two forward and reverse threaded rods (211) are both provided with two threaded walls with opposite threads, the outer walls of the two threaded walls are both threadedly mounted with inverted T-shaped moving plates (213), the front and rear sides of the top of the clamping drive box (21) are both provided with two slide grooves (215), the vertical top ends of the two inverted T-shaped moving plates (213) respectively pass through the two slide grooves (215) to the top of the clamping drive box (21) and are fixedly connected to the bottom of the width positioning plate (22).

4. The lightweight common support mechanism for frequency converters according to claim 1, characterized in that: L-shaped limiting plates (214) are fixedly mounted on opposite back surfaces of the two clamping drive boxes (21).

5. The lightweight common support mechanism for frequency converters according to claim 1, characterized in that: A plurality of compression springs (221) are fixedly installed on the opposite surfaces of the inner walls of the two width positioning plates (22), and a pressure plate (222) is fixedly installed on the other ends of the plurality of compression springs (221). The pressure plate (222) is slidably connected to the inner cavity of the width positioning plate (22), and a vertical right-angled trapezoidal clamping block (223) is fixedly installed on the side of the pressure plate (222) away from the compression spring (221). The opposite ends of the two opposing vertical right-angled trapezoidal clamping blocks (223) respectively penetrate the opposite surfaces of the two width positioning plates (22), and the inclined surface of the vertical right-angled trapezoidal clamping block (223) is located at the top.

6. The lightweight common support mechanism for frequency converters according to claim 1, characterized in that: The buffer mechanism (23) includes a base block (231), a buffer spring (232) is fixedly installed at an eccentric position on the top of the base block (231), a frequency converter placement top plate (233) is fixedly installed on the top of the buffer spring (232), a damper (234) is fixedly installed on the bottom of the frequency converter placement top plate (233), the bottom end of the damper (234) is fixedly connected to the top center of the base block (231), and the damper (234) is located on the inner side of the buffer spring (232).

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