Hoisting device for maintenance of frequency converter

Abstract

The utility model discloses a frequency converter maintenance hoisting device, and particularly relates to the technical field of frequency converter maintenance hoisting tools, the frequency converter maintenance hoisting device comprises two bottom plates, two supports are fixedly connected to the bottoms of the bottom plates, two universal wheels are rotatably connected to the outer sides of the supports, and splicing hoisting mechanisms are arranged on the outer sides of the bottom plates; the splicing hoisting mechanism comprises a square pipe, one side of the square pipe is fixedly connected with one side of the bottom plate, the top of the square pipe is fixedly connected with a gear, the output end of a servo motor is fixedly connected with a gear, a plurality of clamping grooves are formed in the bottom of the square pipe, and one side of the bottom plate is fixedly connected with an inserting rod. According to the utility model, through the staggered splicing design of the two bottom plates, the limitation on positioning and hoisting of a larger frequency converter is reduced, and the hoisting efficiency and the applicability of the device are improved; the lifting supporting rod is inserted into the tray at the bottom of the frequency converter, and the frequency converter is positioned by combining the positioning plate and the cushion plate, so that the moving stability of the frequency converter in the hoisting process is ensured, and the safety and convenience of hoisting operation are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to frequency converter maintenance hoist tool technical field, more specifically, the utility model relates to a frequency converter maintenance hoist device. BACKGROUND

[0002] Frequency converter often needs to be loaded and unloaded and carried during maintenance operation process. Manual carrying is most common in the process, but manual carrying is time-consuming and laborious, which can easily cause secondary damage to equipment and has safety hazards such as scratching hands and bruising feet of workers during manual carrying process.

[0003] The existing hoisting tool is prone to tilt or even overturning of the frequency converter due to non-standard use of the hoisting belt by operators with different technical levels.

[0004] According to the search, the frequency converter maintenance hoist device with the publication number CN221917023U is disclosed in the Chinese patent, the utility model uses simple operation, adapts to the frequency converter, the frequency converter is balanced and fixed firmly during hoisting, the operator and the hoisted frequency converter can maintain a proper safety distance, which can greatly improve the safety of personnel and equipment during hoisting.

[0005] However, the above hoist device is inconvenient for fixing the frequency converter during transportation of some high-height frequency converters, which needs to be placed horizontally for hoisting, but the hoist device is not convenient for fixing the frequency converter, which needs to be carefully placed into the hoist device, reducing the hoisting efficiency of the frequency converter. UTILITY MODEL CONTENTS

[0006] In order to overcome the above-mentioned defects of the prior art, the utility model provides a frequency converter maintenance hoist device to solve the problems in the above background art.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] The utility model provides a frequency converter maintenance hoisting device, including two bottom plates, the bottom fixed connection of bottom plate has two supports, the outside rotationally connected of support has two universal wheels, the outside of bottom plate is provided with splicing hoisting mechanism, the splicing hoisting mechanism includes square tube, square tube one side with bottom plate one side fixed connection, the top fixed connection of square tube has servo motor, the output fixed connection of servo motor has gear, the bottom of square tube is opened a plurality of clamping grooves, the one side fixed connection of bottom plate has the plug -in rod, one of the plug -in rod outside and another square tube inside insert, the upper surface of plug -in rod is opened a plurality of toothed slots, the inside of toothed slot and gear bottom mesh, the inside fixed connection of plug -in rod has a plurality of springs, the bottom fixed connection of spring has two clamping blocks, the outside slip connection of clamping block and plug -in rod inside, the bottom of clamping block and clamping groove inside clamping, the top fixed connection of square tube and plug -in rod all has support arm, the top fixed connection of support arm has the ring one, the inside clamping of ring one has the ring two, the top fixed connection of ring two has the lifting rope, the outside of bottom plate is provided with positioning mechanism.

[0009] By adopting the above technical scheme: the separate position adjustment of the two bottom plates enables the two bottom plates to be assembled from the two sides of the frequency converter, reduces the size limitation of the hoisting device on the frequency converter, accelerates the installation and positioning speed between the frequency converter and the hoisting device, and improves the applicability of the hoisting device.

[0010] As a further description of the above technical scheme: the positioning mechanism includes two outer frames, the bottom of the outer frame is fixedly connected with the top of the bottom plate, the inner side of the outer frame is slidably connected with a movable block, the outer side of the movable block penetrates through the bottom plate and extends to the bottom of the bottom plate, a plug pin is inserted into the inner side of the outer frame and the movable block, the bottom of the movable block is fixedly connected with a supporting rod, the one side of the supporting rod is rotatably connected with an auxiliary roller, the one side of the bottom plate is fixedly connected with a fixed plate, the top of the fixed plate is threadedly connected with a bolt, the inner side of the fixed plate is inserted with a push rod, the one side of the push rod is fixedly connected with a positioning plate, the one side of the positioning plate is fixedly connected with two pads.

[0011] By adopting the above technical scheme: the multiple supporting rods with adjustable height can be adjusted according to the actual height of the bottom tray of the frequency converter, so that the multiple supporting rods can smoothly enter the bottom of the tray, and the multiple pads are used to clamp the outer wall of the frequency converter, so that the frequency converter remains stable during transportation.

[0012] The technical effects and advantages of the utility model are as follows:

[0013] 1. By setting the splicing hoisting mechanism, compared with the prior art, the mutual staggered splicing of the two bottom plates reduces the limitation of the hoisting device on the positioning and hoisting of the larger frequency converter, thereby accelerating the hoisting and fixing efficiency of the frequency converter, improving the applicability and use convenience of the hoisting device;

[0014] 2. By setting the positioning mechanism, compared with the prior art, the support rod which can be lifted is used to insert the variable frequency converter bottom tray of different height, and then the variable frequency converter in lifting movement is positioned by the positioning plate and the pad, so that the movement of the variable frequency converter is kept stable, and the safety of the variable frequency converter lifting movement is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model.

[0016] Figure 2 It is a front side structure schematic view of the utility model.

[0017] Figure 3 It is a splicing hoisting mechanism structure schematic view of the utility model.

[0018] Figure 4 It is a fixed plate and push rod connecting place partial schematic view of the utility model.

[0019] Figure 5 It is an outer frame and movable block connecting place partial schematic view of the utility model.

[0020] Figure 6 It is a Figure 3 Enlarged schematic view of A.

[0021] Figure 7 It is a Figure 1 Enlarged schematic view of B.

[0022] The figure mark is: 1, bottom plate;2, support;3, universal wheel;4, square tube;5, servo motor;6, gear;7, clamping groove;8, inserting rod;9, tooth groove;10, spring;11, clamping block;12, support arm;13, lifting ring one;14, lifting ring two;15, lifting rope;16, outer frame;17, movable block;18, bolt;19, support rod;20, auxiliary roller;21, fixed plate;22, bolt;23, push rod;24, positioning plate;25, pad. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0024] The application embodiment discloses a Figures 1-6The frequency converter maintenance hoisting device shown comprises two bottom plates 1, the bottom of the bottom plate 1 is fixedly connected with two supports 2, the outer side of the support 2 is rotatably connected with two universal wheels 3, and the outer side of the bottom plate 1 is provided with a splicing and hoisting mechanism; the splicing and hoisting mechanism comprises square tubes 4, one side of the square tube 4 is fixedly connected with one side of the bottom plate 1, the top of the square tube 4 is fixedly connected with a servo motor 5, the output end of the servo motor 5 is fixedly connected with a gear 6, a plurality of clamping grooves 7 are formed in the bottom of the square tube 4, one side of the bottom plate 1 is fixedly connected with inserting rods 8, the outer side of one of the inserting rods 8 is inserted into the inner side of the other square tube 4, a plurality of tooth grooves 9 are formed in the upper surface of the inserting rod 8, the inner side of the tooth groove 9 is engaged with the bottom of the gear 6, a plurality of springs 10 are fixedly connected to the inner side of the inserting rod 8, the bottom of the spring 10 is fixedly connected with two clamping blocks 11, the outer side of the clamping block 11 is slidably connected with the inner side of the inserting rod 8, the bottom of the clamping block 11 is clamped with the inner side of the clamping groove 7, the top of the square tube 4 and the top of the inserting rod 8 are fixedly connected with support arms 12, the top of the support arm 12 is fixedly connected with a lifting ring one 13, the inner side of the lifting ring one 13 is clamped with a lifting ring two 14, and the top of the lifting ring two 14 is fixedly connected with a lifting rope 15; the outer side of the bottom plate 1 is provided with a positioning mechanism, the square tube 4 and the inserting rod 8 on one side of the two bottom plates 1 are inserted into each other, then the servo motor 5 on the outer side of the square tube 4 drives the gear 6 to engage and drive the tooth groove 9 on the top of the inserting rod 8, the two bottom plates 1 drive the positioning mechanism to move towards each other, the frequency converter is fixed, the lifting ring two 14 is connected with a plurality of lifting ring ones 13, then the lifting ring on the top of the lifting rope 15 is connected through the light gantry, and the frequency converter is moved.

[0025] Referring to Figure 2 , Figure 4 and Figure 5As shown, the positioning mechanism comprises two outer frames 16, the bottom of the outer frame 16 is fixedly connected with the top of the bottom plate 1, the inner side of the outer frame 16 is slidingly connected with the movable block 17, the outer side of the movable block 17 penetrates through the bottom plate 1 and extends to the bottom of the bottom plate 1, the inner side of the outer frame 16 and the movable block 17 is inserted with the bolt 18, the bottom of the movable block 17 is fixedly connected with the supporting rod 19, one side of the supporting rod 19 is rotatably connected with the auxiliary roller 20, one side of the bottom plate 1 is fixedly connected with the fixed plate 21, the top of the fixed plate 21 is threadedly connected with the bolt 22, the inner side of the fixed plate 21 is inserted with the push rod 23, one side of the push rod 23 is fixedly connected with the positioning plate 24, one side of the positioning plate 24 is fixedly connected with two pad discs 25, the bolt 18 is pulled out from the inner side of the outer frame 16 and the movable block 17, the position of the movable block 17 in the inner side of the outer frame 16 can be adjusted, then the movable block 17 and the outer frame 16 are inserted and fixed through the bolt 18, so that the corresponding supporting rod 19 can be matched with the height of the tray at the bottom of the frequency converter, at the same time, the collision between the supporting rod 19 and the tray is reduced through the auxiliary roller 20, then the two push rods 23 are pushed to make one side of the positioning plate 24 and the two pad discs 25 can clamp the outer surface of the frequency converter, then the position of the push rod 23 is fixed by rotating the bolt 22, so that the two groups of positioning plates 24 and pad discs 25 can assist in clamping the frequency converter, and the stability of the frequency converter is maintained.

[0026] The utility model discloses a working principle: before moving frequency converter, first push two bottom plate 1 to the both sides of frequency converter bottom tray, then the square tube 4 of two bottom plate 1 one side and the plug rod 8 are mutually aligned and are inserted, after corresponding square tube 4 and plug rod 8 are inserted, the top servo motor 5 of square tube 4 drives gear 6 to the tooth groove 9 of the top plug rod 8 inside square tube 4 and is inserted to mesh transmission, make two bottom plate 1 between the mesh transmission of gear 6 and tooth groove 9 mutually close, simultaneously in the process of square tube 4 and plug rod 8 being driven by servo motor 5 and gear 6, two clamping blocks 11 of two plug rod 8 insides will be pushed and extrude spring 10 into the inside of plug rod 8, when plug rod 8 enters the inside of corresponding square tube 4, the clamping block 11 of plug rod 8 inside will extrude spring 10, make clamping block 11 can reciprocatingly insert the inside of multiple clamping groove, thus make square tube 4 and plug rod 8 can telescopic adjustment interval, make two bottom plate 1 between can mutually close, simultaneously when tray height is lower, staff can first pull out multiple bolts 18 from the inside of outer frame 16, then slide movable block 17 in the inside of outer frame 16 downward, again through bolt 18, outer frame 16 and movable block 17 are inserted and fixed, make multiple support rods 19 in the process of two bottom plate 1 close, can be inserted to the bottom of tray, and utilize the rotation of auxiliary roller 20, reduce the collision of support rod 19 and tray, make tray can be in the top of multiple support rods 19, after two bottom plate 1 drive support rod 19 and move to the appropriate position, through multiple spring 10 of two plug rod 8 insides push two clamping blocks 11 and the clamping of corresponding clamping groove 7 of square tube 4 bottom, make the distance of two bottom plate 1 keep fixed;

[0027] Then push two push rods 23 drive positioning plate 24 and two pad plates 25 and clamp the both sides of frequency converter, rotate bolt 22 and fix the position of push rod 23, make frequency converter keep stable, finally connect lifting ring two 14 and lifting rope 15 in proper order, connect the lifting ring on the top of lifting rope 15 through light gantry, hoist and move frequency converter and assist maintenance.

[0028] The contents not described in detail in the specification all belong to the prior art known to those skilled in the art, and the model parameters of various appliances are not specifically limited, and conventional equipment can be used, in the technical scheme, the appliance control elements not mentioned belong to the prior art, and therefore are not shown in the drawings, and will not be described here.

[0029] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A frequency converter maintenance hoisting device comprising two base plates (1), characterized in that: The bottom plate (1) bottom fixedly connected with two supports (2), the support (2) outside rotatably connected with two universal wheels (3), the bottom plate (1) outside is provided with splicing hoisting mechanism; The splicing hoisting mechanism includes a square tube (4), one side of the square tube (4) is fixedly connected with one side of the bottom plate (1), the top of the square tube (4) is fixedly connected with a servo motor (5), the output end of the servo motor (5) is fixedly connected with a gear (6), a plurality of clamping grooves (7) are formed in the bottom of the square tube (4), one side of the bottom plate (1) is fixedly connected with a plug rod (8), one of the plug rods (8) is inserted into the other square tube (4) on the outside, a plurality of tooth grooves (9) are formed in the upper surface of the plug rod (8), and the tooth grooves (9) are engaged with the bottom of the gear (6) on the inside. The bottom plate (1) is provided with a positioning mechanism outside.

2. The frequency converter service hoist device of claim 1, wherein: The inside of the plug rod (8) is fixedly connected with a plurality of springs (10), the bottom of the spring (10) is fixedly connected with two clamping blocks (11), the outside of the clamping block (11) is slidably connected with the inside of the plug rod (8), and the bottom of the clamping block (11) is clamped with the inside of the clamping groove (7).

3. The frequency changer service hoist device as set forth in claim 1, wherein: The top of the square tube (4) and the plug rod (8) is fixedly connected with a support arm (12), the top of the support arm (12) is fixedly connected with a lifting ring one (13), the inside of the lifting ring one (13) is clamped with a lifting ring two (14), and the top of the lifting ring two (14) is fixedly connected with a lifting rope (15).

4. The frequency changer service hoist assembly of claim 1 wherein: The positioning mechanism includes two outer frames (16), the bottom of the outer frame (16) is fixedly connected with the top of the bottom plate (1), the inside of the outer frame (16) is slidably connected with a movable block (17), the outside of the movable block (17) penetrates through the bottom plate (1) and extends to the bottom of the bottom plate (1), and the inside of the outer frame (16) and the movable block (17) is inserted with a plug pin (18).

5. The frequency changer service hoist assembly of claim 4 wherein: The bottom of the movable block (17) is fixedly connected with a supporting rod (19), and the one side of the supporting rod (19) is rotatably connected with an auxiliary roller (20).

6. The frequency changer service hoist assembly of claim 1 wherein: One side of the bottom plate (1) is fixedly connected with a fixed plate (21), the top of the fixed plate (21) is threadedly connected with a bolt (22), and the inside of the fixed plate (21) is inserted with a push rod (23).

7. The frequency changer service hoist assembly of claim 6 wherein: One side of the push rod (23) is fixedly connected with a positioning plate (24), and the one side of the positioning plate (24) is fixedly connected with two pad plates (25).

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