A maintenance hoisting tool for a transformer voltage regulating switch

Abstract

The present invention discloses a transformer voltage regulating switch maintenance hoisting tool, comprising a wire rope assembly, the wire rope assembly comprising a fixed ring, an O-shaped buckle, an upper wire rope lifting ring, a wire rope, a lower wire rope lifting ring, an O-shaped buckle inner groove, a fixed ring inner buckle, a lifting ring inner buckle, a ball groove, and a ball. The top of the fixed ring is movably mounted with a connecting ring assembly, the top of the connecting ring assembly is movably mounted with a hook assembly, the bottom of the fixed ring is movably mounted with an O-shaped buckle, and the bottom of the O-shaped buckle is movably mounted with an upper wire rope lifting ring. The present invention reduces the shaking angle of the fixed ring and the upper wire rope lifting ring inside the O-shaped buckle through the cooperation of the O-shaped buckle inner groove and the fixed ring inner buckle and the lifting ring inner buckle, thereby reducing the shaking frequency and degree of the hanging plate, reducing the shaking frequency that may be generated when the transformer is lifted, and improving the stability of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of transformer lifting tools, and particularly to a lifting tool for overhauling a transformer voltage regulating switch. Background Art

[0002] With the rapid development of social economy, the use of transformers has become one of the very common machines in people's daily lives. A transformer is a device that uses the principle of electromagnetic induction to change the AC voltage. Its main components are a primary coil, a secondary coil, and an iron core (magnetic core). Its main functions include: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), etc. When a transformer needs to be overhauled for its voltage regulating switch, a lifting tool is required to lift it for convenient maintenance.

[0003] However, when the existing transformer lifting tools are in use, due to the relationship of the back-and-forth shaking between the sling and the lifting ring, the transformer shakes in the lifting tool, which affects the maintenance. Moreover, the position of the transformer is difficult to maintain in the middle position, resulting in uneven counterweight of the lifting tool and tilting. Summary of the Invention

[0004] The purpose of the present invention is to provide a lifting tool for overhauling a transformer voltage regulating switch to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A lifting tool for overhauling a transformer voltage regulating switch, including a wire rope assembly. The wire rope assembly includes a fixed ring, an O-shaped buckle, an upper wire rope lifting ring, a wire rope, a lower wire rope lifting ring, an O-shaped buckle inner groove, a fixed ring inner buckle, a lifting ring inner buckle, a ball groove, and a ball. The top end of the fixed ring is movably installed with a connecting ring assembly, the top end of the connecting ring assembly is movably installed with a hook assembly, the bottom ends of the fixed rings are all movably installed with O-shaped buckles, the bottom ends of the O-shaped buckles are all movably installed with upper wire rope lifting rings, the bottom ends of the upper wire rope lifting rings are all fixedly installed with wire ropes, the bottom ends of the wire ropes are all fixedly installed with lower wire rope lifting rings, the bottom ends of the lower wire rope lifting rings are all movably installed with a lifting plate assembly. The interiors of the O-shaped buckles are all provided with O-shaped buckle inner grooves, the inner surfaces of the fixed rings are all fixedly installed with fixed ring inner buckles, and the fixed ring inner buckles are all clamped into the interiors of the O-shaped buckle inner grooves. The inner surfaces of the upper wire rope lifting rings are all fixedly installed with lifting ring inner buckles, and the lifting ring inner buckles are all clamped into the interiors of the O-shaped buckle inner grooves. The inner surfaces of the O-shaped buckle inner grooves are all provided with a plurality of ball grooves, and balls are all movably installed in the ball grooves.

[0006] Preferably, the hook assembly includes a base, a hook, an outer hook groove, a spring groove, a spring buckle, a compression spring, a spring plunger, a limit groove, and a limit buckle. The hook is fixedly installed at the bottom end of the base. The outer surface of the top end of the hook is provided with an outer hook groove. Two spring grooves are arranged inside the outer hook groove. Spring buckles are movably installed inside the spring grooves. Compression springs are movably installed inside the spring buckles. A limit groove is arranged on the surface of one of the spring buckles, and a limit buckle is fixedly installed on the surface of the other spring buckle. The limit buckle is snapped into the inside of the limit groove.

[0007] Preferably, the connecting ring assembly includes an upper connecting ring, a lower connecting ring, an outer connecting ring groove, and an arc-shaped convex block. Two lower connecting rings are movably installed at the bottom end of the upper connecting ring. Outer connecting ring grooves are arranged on the surfaces of the upper connecting ring near the top end and the bottom end. Two arc-shaped convex blocks are fixedly installed inside each of the outer connecting ring grooves.

[0008] Preferably, the hanging plate assembly includes a hanging plate, an outer hanging plate baffle, a bottom shock pad, side fixing rods, a counterweight rod baffle, counterweight rods, fixing rods, fixed hanging rings, and a top hanging plate groove. Outer hanging plate baffles are fixedly installed on the four sides of the top surface of the hanging plate. The bottom shock pad is fixedly installed at the bottom end of the hanging plate. Two side fixing rods are fixedly installed on each of the two side surfaces of the hanging plate. A plurality of counterweight rods are movably installed on the top surfaces of the side fixing rods. Counterweight rod baffles are fixedly installed on the top surfaces of the side fixing rods at the end positions of the side fixing rods. Fixing rods are fixedly installed at the four end corners of the top surface of the hanging plate. Fixed hanging rings are fixedly installed at the top ends of the fixing rods. A top hanging plate groove is arranged on the top surface of the hanging plate.

[0009] Preferably, the lower wire rope hanging rings are all snapped into the inside of the fixed hanging rings.

[0010] Preferably, the fixed rings are all snapped into the inside of the lower connecting rings.

[0011] Preferably, the upper connecting ring is snapped into the inside of the outer hook groove, and the spring buckles are all snapped into the inside of the outer connecting ring grooves.

[0012] Preferably, a plurality of convex blocks are arranged on the bottom surface of the bottom shock pad.

[0013] Preferably, the bottom ends of the fixing rods and the top surface of the hanging plate are connected by welding.

[0014] Preferably, a plurality of shock-absorbing springs are arranged inside the bottom shock pad.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. Through the cooperation of the inner groove of the O-shaped buckle, the inner buckle of the fixed ring, and the inner buckle of the hanging ring, the present invention reduces the angle of shaking of the fixed ring and the upper wire rope hanging ring inside the O-shaped buckle, thereby reducing the shaking frequency of the hanging plate, decreasing the possible shaking frequency during the hoisting of the transformer, and improving the stability of the device; through the cooperation of the ball and the ball groove, the friction between the inner buckle of the fixed ring, the inner buckle of the hanging ring, and the inner groove of the O-shaped buckle is reduced, preventing severe wear of the inner buckle of the fixed ring and the inner buckle of the hanging ring after long-term use, and improving the service life of the device. By setting the outer groove of the hook on the surface of the hook, when the upper connecting ring is placed inside the hook, it can be snapped into the inner part of the outer groove of the connecting ring through the spring buckle, thereby limiting the upper connecting ring and preventing the upper connecting ring from shaking due to wind force or inertia during use, which may cause the rest of the parts at the bottom to shake together and lead to device instability, and improving the stability of the device;

[0017] 2. By installing side fixing rods on both sides of the hanging plate, the present invention enables the hanging plate to place counterweight rods on the side fixing rods during use to balance the weight ratio on both sides of the hanging plate, preventing the hanging plate from tilting and causing accidents due to the position of the transformer not being in the middle;

[0018] When the device is placed on the ground through the bottom shock pad, the impact force generated can be effectively reduced, preventing damage to the bottom components of the transformer due to the impact force. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural diagram of the whole of the present invention;

[0020] Figure 2 is a front view of the whole of the present invention;

[0021] Figure 3 is a sectional side view of the whole of the present invention;

[0022] Figure 4 is an oblique sectional side view of the whole of the present invention;

[0023] Figure 5 is a schematic diagram of the partial sectional structure of the O-shaped buckle of the present invention;

[0024] Figure 6 is a bottom view of the bottom shock pad of the present invention;

[0025] Figure 7 is a schematic diagram of the partial structure of the spring buckle of the present invention.

[0026] In the figure: 1. Hook assembly; 101. Base; 102. Hook; 103. Outer groove of the hook; 104. Spring groove; 105. Spring buckle; 106. Compression spring; 107. Spring plunger; 108. Limit groove; 109. Limit buckle; 2. Connecting ring assembly; 201. Upper connecting ring; 202. Lower connecting ring; 203. Outer groove of the connecting ring; 204. Arc-shaped convex block; 3. Steel wire rope assembly; 301. Fixed ring; 302. O-shaped buckle; 303. Upper steel wire rope sling ring; 304. Steel wire rope; 305. Lower steel wire rope sling ring; 306. Inner groove of the O-shaped buckle; 307. Inner buckle of the fixed ring; 308. Inner buckle of the sling ring; 309. Ball groove; 310. Ball; 4. Hanging plate assembly; 401. Hanging plate; 402. Outer baffle of the hanging plate; 403. Bottom shock pad; 404. Side fixing rod; 405. Baffle of the counterweight rod; 406. Counterweight rod; 407. Fixing rod; 408. Fixed sling ring; 409. Top groove of the hanging plate. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Please refer to Figures 1 to 6 , an embodiment provided by the present invention: A maintenance hoisting tool for a transformer voltage regulating switch, including a steel wire rope assembly 3. The steel wire rope assembly 3 includes a fixed ring 301, an O-shaped buckle 302, an upper steel wire rope sling ring 303, a steel wire rope 304, a lower steel wire rope sling ring 305, an inner groove 306 of the O-shaped buckle, an inner buckle 307 of the fixed ring, an inner buckle 308 of the sling ring, a ball groove 309, and a ball 310. A connecting ring assembly 2 is movably installed at the top end of the fixed ring 301, a hook assembly 1 is movably installed at the top end of the connecting ring assembly 2, O-shaped buckles 302 are movably installed at the bottom ends of the fixed ring 301, upper steel wire rope sling rings 303 are movably installed at the bottom ends of the O-shaped buckles 302, steel wire ropes 304 are fixedly installed at the bottom ends of the upper steel wire rope sling rings 303, lower steel wire rope sling rings 305 are fixedly installed at the bottom ends of the steel wire ropes 304, a hanging plate assembly 4 is movably installed at the bottom ends of the lower steel wire rope sling rings 305. Inner grooves 306 of the O-shaped buckle are provided inside the O-shaped buckles 302, inner buckles 307 of the fixed ring are fixedly installed on the inner surface of the fixed ring 301, and the inner buckles 307 of the fixed ring are all snapped into the inner grooves 306 of the O-shaped buckle. Inner buckles 308 of the sling ring are fixedly installed on the inner surface of the upper steel wire rope sling rings 303, and the inner buckles 308 of the sling ring are all snapped into the inner grooves 306 of the O-shaped buckle. A plurality of ball grooves 309 are provided on the inner surface of the inner groove 306 of the O-shaped buckle, and balls 310 are movably installed inside the ball grooves 309.

[0029] Furthermore, the hook assembly 1 includes a base 101, a hook 102, an outer hook groove 103, a spring groove 104, a spring buckle 105, a compression spring 106, a spring plunger 107, a limit groove 108, and a limit buckle 109. A hook 102 is fixedly installed at the bottom end of the base 101. An outer hook groove 103 is provided on the top surface of the hook 102. Two spring grooves 104 are provided inside the outer hook groove 103. Spring buckles 105 are movably installed inside the spring grooves 104. Compression springs 106 are movably installed inside the spring buckles 105. A limit groove 108 is provided on the surface of one of the spring buckles 105, and a limit buckle 109 is fixedly installed on the surface of the other spring buckle 105. The limit buckle 109 is snapped into the inside of the limit groove 108. By snapping the spring buckle 105 into the inside of the outer groove 203 of the connecting ring, the upper connecting ring 201 is limited, preventing the upper connecting ring 201 from shaking due to wind force or inertia during use, and further preventing the remaining parts at its bottom from shaking together, resulting in instability of the device and improving the stability of the device.

[0030] Furthermore, the connecting ring assembly 2 includes an upper connecting ring 201, a lower connecting ring 202, an outer connecting ring groove 203, and an arc-shaped convex block 204. Two lower connecting rings 202 are movably installed at the bottom end of the upper connecting ring 201. Outer connecting ring grooves 203 are provided on the surfaces of the upper connecting ring 201 near the top and bottom ends. Two arc-shaped convex blocks 204 are fixedly installed inside the outer connecting ring grooves 203. Through the arc-shaped convex blocks 204, when the upper connecting ring 201 is loaded and unloaded, the arc-shaped features on the surface of the arc-shaped convex blocks 204 and the arc-shaped features on the surface of the spring buckle 105 enable it to be easily disassembled and installed.

[0031] Furthermore, the hanging plate assembly 4 includes a hanging plate 401, an outer hanging plate baffle 402, a bottom shock pad 403, side fixing rods 404, a counterweight rod baffle 405, counterweight rods 406, fixing rods 407, fixed hanging rings 408, and a top hanging plate groove 409. Outer hanging plate baffles 402 are fixedly installed on the four sides of the top surface of the hanging plate 401. A bottom shock pad 403 is fixedly installed at the bottom end of the hanging plate 401. Two side fixing rods 404 are fixedly installed on both side surfaces of the hanging plate 401. A plurality of counterweight rods 406 are movably installed on the top surfaces of the side fixing rods 404. Counterweight rod baffles 405 are fixedly installed on the top surfaces at the end positions of the side fixing rods 404. Fixing rods 407 are fixedly installed at the four corners of the top surface of the hanging plate 401. Fixed hanging rings 408 are fixedly installed at the tops of the fixing rods 407. A top hanging plate groove 409 is provided on the top surface of the hanging plate 401. By providing the top hanging plate groove 409 on the top surface of the hanging plate 401, the transformer can be placed inside the top hanging plate groove 409, preventing the transformer from tilting and shifting during work, resulting in imbalance of weight and accidents.

[0032] Furthermore, the lower wire rope slings 305 are all clamped into the interior of the fixed sling 408.

[0033] Furthermore, the fixed rings 301 are all clamped into the interior of the lower connecting ring 202.

[0034] Furthermore, the upper connecting ring 201 is clamped into the interior of the outer groove 103 of the hook, and the spring buckles 105 are all clamped into the interior of the outer groove 203 of the connecting ring.

[0035] Furthermore, a plurality of bumps are provided on the bottom surface of the bottom shock pad 403. By means of the bumps, while reducing the impact force, the distance between the bottom end of the transformer and the ground can be increased through the bumps.

[0036] Furthermore, the bottom end of the fixed rod 407 and the top surface of the hanging plate 401 are both welded to prevent accidents caused by the breakage between the hanging plate 401 and the fixed rod 407.

[0037] Furthermore, a plurality of shock-absorbing springs are provided inside the bottom shock pad 403. Through the shock-absorbing springs, the impact force absorbed by the bottom shock pad 403 can be released back to the ground through the shock-absorbing springs, improving its working efficiency.

[0038] During use, through the cooperation of the inner groove 306 of the O-shaped buckle, the inner buckle 307 of the fixed ring, and the inner buckle 308 of the sling, the shaking angle of the fixed ring 301 and the upper wire rope sling 303 inside the O-shaped buckle 302 is reduced, the shaking frequency of the hanging plate 401 is lowered, the possible shaking frequency during the lifting of the transformer is reduced, and the stability of the device is improved. Through the cooperation of the ball 310 and the ball groove 309, the friction between the inner buckle 307 of the fixed ring, the inner buckle 308 of the sling, and the inner groove 306 of the O-shaped buckle is reduced, preventing the inner buckle 307 of the fixed ring and the inner buckle 308 of the sling from being severely worn after long-term use, and improving the service life of the device. By installing the side fixed rods 404 on both sides of the hanging plate 401, when the hanging plate 401 is in use, counterweight rods 406 can be placed on the side fixed rods 404 to balance the weight ratio on both sides of the hanging plate 401, preventing the hanging plate 401 from tilting due to the position of the transformer not being in the middle and thus avoiding accidents.

Claims

1. A maintenance hoisting tool for a transformer voltage regulating switch, comprising a wire rope assembly (3), characterized in that: The wire rope assembly (3) includes a fixed ring (301), an O-shaped buckle (302), an upper wire rope sling (303), a wire rope (304), a lower wire rope sling (305), an O-shaped buckle inner groove (306), a fixed ring inner buckle (307), a sling inner buckle (308), a ball groove (309), and a ball (310). The top of the fixed ring (301) is movably installed with a connecting ring assembly (2), the top of the connecting ring assembly (2) is movably installed with a hook assembly (1), the bottom of the fixed ring (301) is movably installed with O-shaped buckles (302), the bottom of the O-shaped buckles (302) is movably installed with upper wire rope slings (303), the bottom of the upper wire rope slings (303) is fixedly installed with wire ropes (304), the bottom of the wire ropes (304) is fixedly installed with lower wire rope slings (305), the bottom of the lower wire rope slings (305) is movably installed with a sling plate assembly (4), the inside of the O-shaped buckles (302) is provided with O-shaped buckle inner grooves (306), the inner surface of the fixed ring (301) is fixedly installed with fixed ring inner buckles (307), the fixed ring inner buckles (307) are all snapped into the inside of the O-shaped buckle inner grooves (306), the inner surface of the upper wire rope slings (303) is fixedly installed with sling inner buckles (308), the sling inner buckles (308) are all snapped into the inside of the O-shaped buckle inner grooves (306), the inner surface of the O-shaped buckle inner grooves (306) is provided with a plurality of ball grooves (309), and balls (310) are movably installed inside the ball grooves (309); The hook assembly (1) includes a base (101), a hook (102), a hook outer groove (103), a spring groove (104), a spring buckle (105), a compression spring (106), a spring plunger (107), a limit groove (108), and a limit buckle (109). The bottom of the base (101) is fixedly installed with a hook (102), the top surface of the hook (102) is provided with a hook outer groove (103), two spring grooves (104) are provided inside the hook outer groove (103), spring buckles (105) are movably installed inside the spring grooves (104), compression springs (106) are movably installed inside the inner sides of the spring buckles (105), a limit groove (108) is provided on the surface of one of the spring buckles (105), a limit buckle (109) is fixedly installed on the surface of the other spring buckle (105), and the limit buckle (109) is snapped into the inside of the limit groove (108); The connecting ring assembly (2) includes an upper connecting ring (201), a lower connecting ring (202), a connecting ring outer groove (203), and arc-shaped bumps (204). Two lower connecting rings (202) are movably installed at the bottom end of the upper connecting ring (201). Connecting ring outer grooves (203) are provided on the surfaces of the upper connecting ring (201) near the top and bottom ends. Two arc-shaped bumps (204) are fixedly installed inside each of the connecting ring outer grooves (203). The upper connecting ring (201) is snapped into the inside of the hook outer groove (103), and the spring clips (105) are all snapped into the inside of the connecting ring outer groove (203).

2. The maintenance hoisting tool for a transformer voltage regulating switch according to claim 1, characterized in that: The hanging plate assembly (4) includes a hanging plate (401), a hanging plate outer baffle (402), a bottom shock pad (403), side fixing rods (404), a counterweight rod baffle (405), counterweight rods (406), fixing rods (407), fixed hanging rings (408), and a hanging plate top groove (409). Hanging plate outer baffles (402) are fixedly installed on the four sides of the top surface of the hanging plate (401). A bottom shock pad (403) is fixedly installed at the bottom end of the hanging plate (401). Two side fixing rods (404) are fixedly installed on both side surfaces of the hanging plate (401). A plurality of counterweight rods (406) are movably installed on the top surfaces of the side fixing rods (404). Counterweight rod baffles (405) are fixedly installed on the top surfaces at the end positions of the side fixing rods (404). Fixing rods (407) are fixedly installed at the four end corners of the top surface of the hanging plate (401). Fixed hanging rings (408) are fixedly installed at the top ends of the fixing rods (407). A hanging plate top groove (409) is provided on the top surface of the hanging plate (401).

3. The maintenance hoisting tool for a transformer voltage regulating switch according to claim 1, characterized in that: The lower wire rope hanging rings (305) are all snapped into the inside of the fixed hanging rings (408).

4. The maintenance hoisting tool for a transformer voltage regulating switch according to claim 1, characterized in that: The fixed rings (301) are all snapped into the inside of the lower connecting rings (202).

5. The maintenance hoisting tool for a transformer voltage regulating switch according to claim 2, characterized in that: A plurality of bumps are provided on the bottom surface of the bottom shock pad (403).

6. The maintenance hoisting tool for a transformer voltage regulating switch according to claim 2, characterized in that: The bottom ends of the fixing rods (407) and the top surfaces of the hanging plate (401) are connected by welding.

7. The maintenance hoisting tool for a transformer voltage regulating switch according to claim 2, characterized in that: A plurality of shock-absorbing springs are provided inside the bottom shock pad (403).

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