Hoisting device for high-voltage switch circuit breaker

Abstract

The utility model provides a high-voltage switch circuit breaker lifting device, and relates to the technical field of circuit breaker lifting devices. Rails are respectively arranged at the front and rear ends of the upper end of the hoisting beam; through fixing holes are formed in the two ends of the lower end of the lifting beam correspondingly. The high-voltage switch circuit breaker is placed at different places, the whole device is moved to the position of the circuit breaker by grasping the handle, the circuit breaker is lifted and moved by using the chain block, the position of the circuit breaker is convenient to move, the top plane of the bearing plate is attached to the bottom of the lifted circuit breaker, and the bearing plate is used for bearing and protecting the circuit breaker. The high-voltage electrical equipment maintenance work efficiency is improved, safety production is ensured, and the problems that high-voltage switch circuit breakers need to be lifted and transferred to the placement positions due to different placement places, time and a large amount of physical power are wasted if manual carrying is conducted, and meanwhile equipment is damaged due to the fact that the high-voltage switch circuit breakers fall off accidentally in the manual carrying process are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit breaker lifting devices, in particular to a high-voltage switch circuit breaker lifting device. Background Art

[0002] Most of the high-voltage switch circuit breakers in coal mines are trolley-type. When the high-voltage switch is inspected and locked, the front cover must be opened, the track steel frame must be placed horizontally, and the circuit breaker trolley in the high-voltage switch cavity must be pulled out before the electrical equipment can be inspected and repaired. Under normal circumstances, pulling the trolley out to the end of the track steel frame can meet most of the space requirements for equipment maintenance. However, sometimes the static contact part of the high-voltage switch, the locking mechanism in the cavity, and the control line part need to be inspected and processed, or when the circuit breaker trolley fails and needs to be replaced, the trolley must be moved away from the steel frame. The circuit breaker trolley contains the suction coil and the closing mechanism, and it is also attached with moving contacts, mutual inductors, permanent magnet mechanisms, auxiliary contacts and other components. Its weight can reach more than 100KG. The labor intensity of manual handling is too high, and the space is small after the front door of the high-voltage switch is opened. It can only be carried by two or three people at most, which is very dangerous. Once it is out of hand during transportation, in addition to causing damage to the equipment, it is very easy to cause a smashing accident, causing harm to the operator, and seriously threatening personal safety. Therefore, a high-voltage switch circuit breaker lifting device is designed.

[0003] During the use of the lifting device, since the high-voltage switch circuit breaker is placed in different places, it is necessary to lift the circuit breaker and transfer it to another place. If it is carried manually, it will not only delay time but also waste a lot of physical strength. At the same time, if it is dropped during manual transportation, the equipment will be damaged. Utility Model Content

[0004] The disclosed embodiment relates to a lifting device for a high-voltage switch circuit breaker. The high-voltage switch circuit breaker is placed in different places. The whole device is moved to the position of the circuit breaker by grasping a handle. The circuit breaker is lifted and moved by a hand winch, which facilitates the movement of the position of the circuit breaker. The top plane of the supporting plate is in contact with the bottom of the lifted circuit breaker. The circuit breaker is supported and protected by the supporting plate, which improves the work efficiency of the maintenance work of the high-voltage electrical equipment and ensures safe production.

[0005] In a first aspect of the present disclosure, a lifting device for a high-voltage switch circuit breaker is provided, specifically comprising: a lifting beam; tracks are respectively provided at the front and rear ends of the upper end of the lifting beam; through fixing holes are respectively provided at the two ends of the lower end of the lifting beam; a lifting trolley in a shape is rotatably mounted on the track at the upper end of the lifting beam, and two through shaft holes are provided at the upper end of the lifting trolley; two through circular holes are provided at the lower end of the lifting trolley;

[0006] Symmetrical reinforcing rods are fixedly installed on the inner side wall of the upper end of the lifting beam; a hand chain hoist is suspended and installed at the lower end of the lifting trolley, and an upper hook is connected to the upper end of the hand chain hoist; a lifting hook is connected to the lower end of the hand chain hoist; symmetrical lower support beams are installed at the fixing holes at the lower end of the lifting beam; and plug holes are respectively provided at both ends of the rear end of the lower support beam at the front end;

[0007] A row of through positioning holes are respectively provided at both ends of the lower supporting beam at the front end, a supporting plate is placed at the supporting groove at the upper end of the lower supporting beam, a through push-pull hole is provided in the middle of the front end of the supporting plate, and symmetrical handles are fixedly installed on the front side wall of the upper end of the lifting beam; bases are respectively fixedly installed at both ends of the lower end of the lifting beam, and two load-bearing universal wheels are installed at the lower end of the base.

[0008] In at least some embodiments, driving wheels are rotatably mounted at the shaft holes at the front and rear ends of the lifting trolley, and a connecting groove is opened in the middle of the bottom of the lifting trolley, and a connecting block is inserted in the connecting groove.

[0009] In at least some embodiments, a through hook hole is provided at the lower end of the connecting block, and two through anti-drop holes are provided at the upper end of the connecting block. Through anti-drop rods are respectively inserted in the two anti-drop holes, and a thread is provided at the rear end of the anti-drop rod.

[0010] In at least some embodiments, a connecting rod is fixedly installed at the front end of the two anti-drop rods, and a limiting ring is rotatably installed at the threads of the two anti-drop rods, and an anti-slip groove is opened on the annular side wall at the outer end of the limiting ring.

[0011] In at least some embodiments, a supporting groove is provided at the upper end of the lower support beam, and plug rods are fixedly installed at both ends of the front side wall of the lower support beam at the rear end. The plug rods are provided with a row of penetrating circular holes, and penetrating screws are inserted in the circular holes of the plug rods.

[0012] The utility model provides a high-voltage switch circuit breaker lifting device, which has the following beneficial effects:

[0013] When the lifting device of the utility model is in use, the high-voltage switch circuit breaker is placed in different places, the handle is grasped to move the whole device to the position of the circuit breaker, and the circuit breaker is lifted and moved by using a hand winch, which is convenient for moving the position of the circuit breaker, the top plane of the supporting plate is in contact with the bottom of the lifted circuit breaker, and the supporting plate is used to carry and protect the circuit breaker, thereby improving the working efficiency of the maintenance operation of the high-voltage electrical equipment and ensuring safe production.

[0014] The device adopts a mobile gantry lifting structure with universal wheels at the bottom for rotation and movement. The lifting operation is completed by a hand winch and a lifting belt. After moving the device to a suitable position, the high-opening circuit breaker trolley is tied up. After confirming that it is firm, it can be lifted. After lifting it off the track steel frame, the circuit breaker trolley can be lowered to the lower support beam. After ensuring that it is stable and reliable, the device can be moved. The device has a stable and reliable structure and is simple and convenient to use. It avoids the operation of manual transportation of the circuit breaker trolley and eliminates the risk of damage to equipment and personal injury caused by accidental dropping during transportation, thereby improving the work efficiency of high-voltage electrical equipment maintenance operations and ensuring safe production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0016] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0017] In the attached picture:

[0018] Figure 1 The schematic diagram of the upper left front axial structure of the present application is shown;

[0019] Figure 2 A schematic diagram of the partially disassembled structure of the lifting trolley and hand chain hoist of the present application is shown;

[0020] Figure 3 A schematic diagram of the partially disassembled structure of the lower joist of the present application is shown;

[0021] Figure 4 A schematic diagram of the explosion structure of the present application is shown.

[0022] Reference numerals list

[0023] 1. Lifting beam; 2. Lifting trolley; 201. Driving wheel; 202. Connecting groove; 203. Connecting block; 204. Hook hole; 205. Anti-drop hole; 206. Anti-drop rod; 207. Connecting rod; 208. Limiting ring; 3. Reinforcement rod; 4. Hand chain hoist; 401. Upper hook; 402. Lifting hook; 5. Lower support beam; 501. Supporting groove; 502. Insert rod; 503. Insert hole; 504. Positioning hole; 505. Support plate; 506. Push-pull hole; 6. Handle; 7. Base; 8. Load-bearing universal wheel. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0025] Embodiment 1: Please refer to Figures 1 to 4 :

[0026] The present utility model provides a hoisting device for a high-voltage switch circuit breaker, including: a hoisting beam 1; tracks are respectively provided at the front and rear ends of the upper end of the hoisting beam 1; through fixing holes are respectively provided at both ends of the lower end of the hoisting beam 1; the main structure of the device is welded by steel. Among them, the hoisting beam 1 is made of 10# I-beam with a length of 1.2 meters, and the structures of the base 7, the reinforcing rod 3 and the lower supporting beam 5 all adopt 60*60 square steel to ensure the load-bearing strength of the device and the overall structural stability. The internal span of the device is 1 meter, the height of the device is 1500 mm, and the lower supporting beam 5 is 400 mm from the ground, which can meet the cavity sizes of most different types of high-voltage switches. A special hoisting trolley 2 is arranged and locked at the middle position of the hoisting beam 1. A 0.5T manual chain hoist 4 is fixed in the hook hole 204. The manual chain hoist 4 is equipped with two hoisting belts for tying and hoisting the trolley 2 to prevent rigid materials such as iron chains and steel wires from damaging the accessory parts on the trolley. In addition, the lower supporting beam 5 also has the function of bearing the trolley to prevent it from shaking. Four load-bearing universal wheels 8 are arranged on the base 7, which can bear the total weight of the device and the trolley, and are provided with a foot brake locking device to prevent the device from slipping during hoisting. A U-shaped hoisting trolley 2 is installed in a rolling manner at the track at the upper end of the hoisting beam 1. Two through shaft holes are provided at the upper end of the hoisting trolley 2; the rotating shaft at the outer end of the driving wheel 201 penetrates through the shaft hole of the hoisting trolley 2. Two through round holes are provided at the lower end of the hoisting trolley 2; symmetrically arranged reinforcing rods 3 are fixedly installed on the inner side wall at the upper end of the hoisting beam 1; a manual chain hoist 4 is hung and installed at the lower end of the hoisting trolley 2. The upper end of the manual chain hoist 4 is connected with an upper hook 401; the lower end of the manual chain hoist 4 is connected with a hoisting hook 402; the circuit breaker is lifted upward with the hoisting hook 402. Symmetrically arranged lower supporting beams 5 are installed at the fixing holes at the lower end of the hoisting beam 1; symmetrically arranged handrails 6 are fixedly installed on the front side wall at the upper end of the hoisting beam 1; grasping the handrails 6 is convenient for moving the whole device. Bases 7 are respectively fixedly installed at both ends of the lower end of the hoisting beam 1. Two load-bearing universal wheels 8 are installed at the lower end of the base 7. Installing the load-bearing universal wheels 8 is convenient for pushing the whole device.

[0027] Among them, driving wheels 201 are rotatably installed at the shaft holes at the front and rear ends of the lifting trolley 2, and the driving wheels 201 at the front and rear ends are respectively rollingly installed in the front and rear tracks of the lifting beam 1. A connecting groove 202 is opened in the middle of the bottom of the lifting trolley 2, and a connecting block 203 is inserted in the connecting groove 202. At this time, the anti-drop hole 205 corresponds to the two circular holes at the lower end of the lifting trolley 2, and then the anti-drop rod 206 is penetrated here, and then the limiting ring 208 on the anti-drop rod 206 is rotated and moved forward, and the side wall of the limiting ring 208 is squeezed tightly with the side wall of the lifting trolley 2 to temporarily fix the connecting block 203 on the lifting trolley 2. A through hook hole 204 is provided, and an upper hook 401 is passed through the hook hole 204. Two through anti-drop holes 205 are provided at the upper end of the connecting block 203. Through anti-drop rods 206 are respectively inserted in the two anti-drop holes 205. Threads are provided at the rear ends of the anti-drop rods 206. Connecting rods 207 are fixedly installed at the front ends of the two anti-drop rods 206. The two anti-drop rods 206 can be conveniently moved by grasping the connecting rod 207. Restriction rings 208 are respectively rotatably installed at the threads of the two anti-drop rods 206. Anti-slip grooves are provided on the annular side walls at the outer ends of the restriction rings 208. When the anti-slip grooves on the restriction rings 208 are grasped and rotated, there will be no hand slipping.

[0028] Among them, a supporting notch 501 is provided at the upper end of the lower support beam 5, and the two ends of the front side wall of the rear lower support beam 5 are respectively fixedly installed with a plug rod 502, and a row of penetrating round holes are provided on the plug rod 502, and penetrating screws are inserted in the round holes of the plug rod 502. The rear ends of the two plug rods 502 are respectively inserted into the fixing holes at both ends of the lifting beam 1, and then the front ends of the plug rods 502 are inserted into the plug holes 503. At this time, the round holes on the plug rods 502 correspond to the positioning holes 504 up and down, and then screws are penetrated here to fix the lower support beams 5 at the front and rear ends together, and then grab The push-pull hole 506 places the supporting plate 505 at the supporting groove 501, and the supporting plate 505 is placed below the lifted circuit breaker. When the lifted circuit breaker falls, the supporting plate 505 will support the fallen circuit breaker to prevent the circuit breaker from falling to the ground and colliding and being damaged. Plug holes 503 are respectively provided at both ends of the rear end of the front lower support beam 5, and a row of penetrating positioning holes 504 are respectively provided at both ends of the front lower support beam 5. The supporting groove 501 at the upper end of the lower support beam 5 is placed with a supporting plate 505, and a penetrating push-pull hole 506 is provided in the middle of the front end of the supporting plate 505.

[0029] Embodiment 2, based on embodiment 1, as Figure 1 and Figure 4As shown, the two ends of the front side wall of the rear end lower support beam 5 are respectively fixedly installed with an insertion rod 502, and the insertion rod 502 is provided with a row of penetrating round holes, and the round holes of the insertion rod 502 are inserted with penetrating screws. The insertion rod 502 and the screws are completely removed, and then the lower support beam 5 is fixedly welded to the lifting beam 1, thereby avoiding the problem of the screws loosening due to long-term use, and also saving the cost of parts.

[0030] Working principle of this embodiment: When in use, open the front cover of the high-voltage switch, lower the track steel frame, pull out the circuit breaker trolley in the high-voltage switch cavity, then move the lifting device to an appropriate position, lock the four load-bearing universal wheels 8 at the bottom to prevent the device from slipping during the lifting process, confirm that the lifting point is located at the center of the circuit breaker trolley, loosen the lifting chain of the hand chain hoist 4 and lower the lifting hook 402, pass two special lifting belts through the bottom of the trolley, and tie the circuit breaker trolley firmly. After confirming that it is reliable, slowly pull the lifting chain of the hand chain hoist 4 to conduct a trial lifting until the lifting height of the trolley reaches 5 0mm, confirm again that the binding is reliable and the auxiliary parts of the trolley are not deformed or damaged by force, then the load-bearing universal wheel 8 can be unlocked, and then the push-pull hole 506 is grasped to place the supporting plate 505 on the supporting groove 501, and the supporting plate 505 is placed under the lifted circuit breaker. Through the operating handles 6 on both sides of the device, the device and the trolley are slowly moved in the opposite direction of the high-voltage switch cavity until they leave the track steel frame, and then the trolley is slowly lowered to the lower support beam 5, so that the lower support beam 5 is stuck between the front and rear sets of wheels at the bottom of the trolley to prevent the trolley from shaking back and forth when the device moves as a whole.

[0031] In this article, there are a few points to note:

[0032] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0033] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0034] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. High voltage switch circuit breaker lifting device, including: A lifting beam (1); tracks are respectively provided at the front and rear ends of the upper end of the lifting beam (1); through fixing holes are respectively provided at the two ends of the lower end of the lifting beam (1); a lifting trolley (2) in a shaped shape is rotatably mounted on the track at the upper end of the lifting beam (1), and two through axial holes are provided at the upper end of the lifting trolley (2); two through circular holes are provided at the lower end of the lifting trolley (2); symmetrical reinforcing rods (3) are fixedly mounted on the inner side wall of the upper end of the lifting beam (1); it is characterized in that the lifting trolley (2) A hand chain hoist (4) is suspended and installed at the lower end of the hand chain hoist (4), and an upper hook (401) is connected to the upper end of the hand chain hoist (4); a lifting hook (402) is connected to the lower end of the hand chain hoist (4); mutually symmetrical lower support beams (5) are installed at the fixing holes at the lower end of the lifting beam (1); mutually symmetrical handles (6) are fixedly installed on the front side wall at the upper end of the lifting beam (1); bases (7) are fixedly installed at both ends of the lower end of the lifting beam (1), and two load-bearing universal wheels (8) are installed at the lower end of the base (7).

2. The high-voltage switch circuit breaker lifting device according to claim 1, characterized in that: Driving wheels (201) are rotatably mounted at the shaft holes at the front and rear ends of the lifting trolley (2), and a connecting groove (202) is provided in the middle of the bottom of the lifting trolley (2), and a connecting block (203) is inserted into the connecting groove (202).

3. The high-voltage switch circuit breaker lifting device according to claim 2, characterized in that: A through hook hole (204) is provided at the lower end of the connection block (203), and two through anti-drop holes (205) are provided at the upper end of the connection block (203). Through anti-drop rods (206) are inserted into the two anti-drop holes (205), respectively, and threads are provided at the rear ends of the anti-drop rods (206).

4. The high-voltage switch circuit breaker lifting device according to claim 3 is characterized in that: A connecting rod (207) is fixedly mounted at the front ends of the two anti-slip rods (206), and a limiting ring (208) is rotatably mounted on the threads of the two anti-slip rods (206), and an anti-slip groove is provided on the annular side wall at the outer end of the limiting ring (208).

5. The high-voltage switch circuit breaker lifting device according to claim 1, characterized in that: A supporting notch (501) is provided at the upper end of the lower support beam (5), and plug rods (502) are fixedly mounted at both ends of the front side wall of the rear lower support beam (5), wherein a row of penetrating circular holes are provided on the plug rods (502), and penetrating screws are inserted into the circular holes of the plug rods (502).

6. The high-voltage switch circuit breaker lifting device according to claim 1, characterized in that: Insertion holes (503) are respectively provided at both ends of the rear end of the lower support beam (5) at the front end, and a row of penetrating positioning holes (504) are respectively provided at both ends of the lower support beam (5) at the front end.

7. The high-voltage switch circuit breaker lifting device according to claim 5, characterized in that: A supporting plate (505) is placed at the supporting notch (501) at the upper end of the lower supporting beam (5), and a through-pushing hole (506) is provided in the middle of the front end of the supporting plate (505).

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