Transfer device for circuit breakers in all centrally-mounted switch cabinets

Abstract

The utility model relates to a transfer device for circuit breakers in all middle-mounted switch cabinets. The transfer device comprises a frame, a lifting frame, a locking device, a driving device, a walking device and a levelness adjusting device, wherein the lifting frame, the locking device, the driving device, the walking device and the levelness adjusting device are installed on the frame. The lifting frame is used for bearing the circuit breaker; the driving device comprises a speed reducer and a pulley system; the pulley system comprises a reel, a fixed pulley, a first movable pulley, a second movable pulley and a steel wire rope. The locking device comprises a rack and sliding teeth; the walking device comprises wheels, a support, a rotating shaft and an oil cylinder. The levelness adjusting device comprises a nut, a screw rod and a locking nut; the beneficial effects of the utility model are that through the arrangement of the gradienter and the levelness adjusting device, when the breaker handcart needs to be dismounted, the four screws are adopted to lift the frame, the gradienter is observed to make the frame horizontal, and then the oil cylinder is started to fold the wheels, so that the frame is in firm contact with the ground, and the situation that when the breaker handcart is loaded, the breaker handcart is damaged is avoided. And one end of the lifting frame is stressed, so that the device is easy to turn over.

Description

Technical Field

[0001] The utility model relates to the technical field of transfer devices, in particular to a transfer device for circuit breakers in all center-mounted switch cabinets. Background Art

[0002] In the power system, the center-mounted circuit breaker trolley in the high-voltage switch cabinet needs to be regularly inspected, tested and maintained. Combined with the characteristics of the power system operation, the current inspection and maintenance adopts the method of half-station or full-station power outage. The 10kV and 35kV busbar rooms use the whole section of the busbar and the outgoing line to be shut down at the same time. In this way, more than ten or twenty units need to be inspected at a time. These circuit breaker trolleys need to be put together before inspection; the platform-type transfer trolley originally used has the following disadvantages: First, due to the high center of gravity during movement, it is easy to overturn, damage the circuit breaker trolley, and seriously injure the maintenance personnel; second, it takes 5 people to lift the circuit breaker trolley from the platform-type transfer trolley (the weight is about 120kg, 4 people lift and one person removes the trolley), and it is easy to injure people.

[0003] Among the existing patents, the patent with application number 201910362214.6 and name of transfer vehicle discloses that the utility model relates to a transfer vehicle, including a base, a support platform, a lifting assembly, a fixing assembly and a second fixing member. The support platform is located on one side of the base, and the side of the support platform away from the base has a mounting surface; the lifting assembly is connected between the base and the support platform, and is used to make the support platform move up and down relative to the base in a direction perpendicular to the mounting surface; the fixing assembly includes a first fixing member, a first driving member and a second fixing member, the first fixing member is longitudinally arranged on the mounting surface along a first direction, and the first fixing member is slidable along a second direction perpendicular to the first direction, and the first driving member is arranged on the support platform, and is used to drive the first fixing member to slide along the second direction; the second fixing member is longitudinally arranged on the mounting surface along the first direction, and is located on one side of the first fixing member, so as to form a fixing position for fixing the circuit breaker with the first fixing member. By setting up the above transfer vehicle, the complexity of operation is effectively reduced, the efficiency of adjustment is improved, and thus the transfer efficiency is improved; the development of this patent is mainly to solve the safety problem of the platform transfer vehicle being prone to overturning during the movement of the circuit breaker trolley during the inspection and testing process, and the problem of manual handling of the circuit breaker trolley. When this patent is used to carry the circuit breaker trolley, the four wheels are in contact with the ground, and the frame is not in a horizontal state, which is easy to cause overturning. Utility Model Content

[0004] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is: how to provide a transfer device for circuit breakers in all center-mounted switch cabinets, which can stably receive the circuit breaker trolley and avoid overturning.

[0005] In order to solve the above problems, the utility model adopts the following technical solutions:

[0006] A transfer device for circuit breakers in all center-mounted switch cabinets, comprising a frame, a lifting frame installed on the frame, a locking device for positioning the lifting frame, a driving device for driving the lifting frame to rise and fall, a traveling device installed on the frame, and a leveling device for adjusting the level of the frame when receiving the circuit breaker; the lifting frame is used to receive the circuit breaker.

[0007] Furthermore, the frame is provided with two upright posts, and one end of the lifting frame is slidably connected to the upright posts.

[0008] Furthermore, the driving device includes a reducer installed on the column on one side of the frame and a pulley system provided between the reducer and the lifting frame.

[0009] Furthermore, the pulley system includes a drum installed at the output end of the reducer, a fixed pulley installed at the top of the column on one side of the frame, a first movable pulley and a second movable pulley respectively installed on both sides of the lifting frame, and a steel wire rope provided between the drum and the top of the column on the other side; one end of the steel wire rope is fixed to the top of the column on the other side, and the other end of the steel wire rope is fixed to the drum after passing through the second movable pulley, the first movable pulley, and the fixed pulley in sequence.

[0010] Furthermore, a crank is provided at the output end of the reducer. When the lifting frame needs to be raised or lowered, the crank is turned, and the reducer drives the lifting frame to be raised or lowered through a steel wire rope and a pulley block.

[0011] Furthermore, the locking device includes a rack fixed to the column on one side of the reducer and a sliding tooth matched with a tooth groove of the rack; the sliding tooth is rotatably connected to the lifting frame, and a positioning screw is threaded on the sliding tooth; when the lifting frame needs to be positioned on the column, the sliding tooth abuts against the tooth groove of the rack, and then the sliding tooth is fixed to the lifting frame with a positioning screw.

[0012] Furthermore, the walking device includes foldable wheels arranged at four corners of the bottom surface of the frame.

[0013] Furthermore, the walking device also includes a bracket fixedly connected to the bottom surface of the frame, a rotating shaft rotatably connected to the bracket, and a cylinder for driving the wheel to fold; the cylinder body of the cylinder is hinged to the frame, and the cylinder rod of the cylinder is hinged to the wheel; the cylinder is arranged to be inclined downward compared to the horizontal plane; one end of the cylinder rod of the cylinder is the lower end; and the wheel is fixedly connected to the rotating shaft.

[0014] Furthermore, there are four wheels, and the wheels respectively arranged near one end of the frame close to the column are universal wheels.

[0015] Furthermore, a spirit level is provided on the frame; a leveling device is arranged at the four corners of the frame; the leveling device includes a nut welded to the frame, a screw threadedly connected to the nut, and a locking nut for locking the screw; a through hole is provided at one end of the screw; a steel rod is provided in the through hole; the steel rod is used to rotate the screw; a chassis is provided at the other end of the screw, and when the frame needs to be leveled, the chassis abuts against the ground.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] By using the level gauge and leveling device, when the circuit breaker trolley needs to be removed, the device is pushed to a suitable position of the power switch cabinet, the screw of the leveling device is turned, the wheels of the lifting frame are lifted off the ground, the frame is lifted by four screws, the level gauge is observed to make the frame level, and then the oil cylinder is started to retract the wheels, so that the frame is firmly in contact with the ground, avoiding the problem of the device easily tipping over due to the force on one end of the lifting frame when loading the circuit breaker trolley;

[0018] Through the provided locking device, when the lifting frame is raised to a suitable position, in order to prevent the reducer from rotating due to external force during transportation, causing the lifting frame to suddenly fall and causing a safety accident, the sliding tooth is inserted into the tooth groove of the rack, and then the positioning screw is tightened to prevent the sliding tooth from rotating; in this way, the lifting frame will be locked with the column to prevent the lifting frame from sliding. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 for Figure 1 Enlarged view of point C;

[0021] Figure 3 It is the front view of the utility model;

[0022] Figure 4 It is a left view of the utility model;

[0023] Figure 5 It is a top view of the utility model;

[0024] Figure 6 It is a structural diagram of the pulley system;

[0025] Figure 7 It is a schematic front view of the structure of the walking device;

[0026] Figure 8 The left view is a schematic diagram of the structure of the walking device.

[0027] In the accompanying drawings,

[0028] 1- Frame;

[0029] 2-Leveling device;

[0030] 3-travel device; 31-wheel, 32-bracket, 33-rotating shaft, 34-oil cylinder;

[0031] 5- Pillar;

[0032] 6-lifting frame;

[0033] 7-locking device, 51-rack, 52-sliding tooth, 53-positioning screw

[0034] 8-reducer, 81-second movable pulley, 82-wire rope, 83-first movable pulley, 84-fixed pulley, 85-drum;

[0035] 9-Handle. DETAILED DESCRIPTION

[0036] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0037] Example 1

[0038] like Figure 1-8 As shown,

[0039] A transfer device for circuit breakers in all center-mounted switch cabinets, comprising a frame 1, a lifting frame 6 installed on the frame 1, a locking device 7 for positioning the lifting frame 6, a driving device for driving the lifting frame 6 to rise and fall, a walking device 3 installed on the frame 1, and a leveling device 2 for adjusting the level of the frame 1 when receiving a circuit breaker; the lifting frame 6 is used to receive a circuit breaker trolley.

[0040] The frame 1 is provided with two columns 5, which are arranged on both sides of the frame 1; the columns 5 are provided with grooves;

[0041] One end of the lifting frame 6 is slidably connected to the column 5. A guide block is provided on the lifting frame 6; the guide block slides in the groove.

[0042] The lifting frame 6 is in the shape of a fork; a connecting plate is provided in the middle of the fork to facilitate receiving the circuit breaker trolley.

[0043] The driving device includes a reducer 8 mounted on the column 5 on one side of the frame 1 and a pulley system between the reducer 8 and the lifting frame 6. The reducer 8 has a self-locking function to prevent the reducer 8 from reversing after the lifting frame 6 is installed on the circuit breaker trolley, causing the lifting frame 6 to slide down.

[0044] The pulley system includes a drum 85 installed at the output end of the reducer 8, a fixed pulley 84 installed at the top of the column 5 on one side of the frame 1, a first movable pulley 83 and a second movable pulley 81 respectively installed on both sides of the lifting frame 6, and a wire rope 82 provided between the drum 85 and the top of the column 5 on the other side; one end of the wire rope 82 is fixed to the top of the column 5 on the other side, and the other end of the wire rope 82 passes through the second movable pulley 81, the first movable pulley 83, and the fixed pulley 84 in sequence and is then fixed to the drum 85.

[0045] When the lifting frame 6 is at the lowest end, the wire rope 82 on the drum 85 needs to be wound at least 4 times to ensure safety.

[0046] The locking device 7 includes a rack 51 fixed to the column 5 on the side where the reducer 8 is provided, and a sliding tooth 52 matched with the tooth groove of the rack 51; the sliding tooth 52 is rotatably connected to the lifting frame 6, and a positioning screw 53 is threadedly connected to the sliding tooth 52; when the lifting frame 6 needs to be positioned on the column 5, the sliding tooth 52 is abutted against the tooth groove of the rack 51, and then the sliding tooth 52 is fixed to the lifting frame 6 with the positioning screw 53.

[0047] The traveling device 3 includes foldable wheels 31 arranged at four corners of the bottom surface of the frame 1 .

[0048] The walking device 3 also includes a bracket 32 ​​fixedly connected to the bottom surface of the frame 1, a rotating shaft 33 rotatably connected to the bracket 32, and a cylinder 34 for driving the wheel 31 to fold; the cylinder body of the cylinder 34 is hinged to the frame 1, and the cylinder rod of the cylinder 34 is hinged to the wheel 31; the cylinder 34 is arranged to be inclined downward compared to the horizontal plane; one end of the cylinder rod of the cylinder 34 is the lower end; the wheel 31 is fixedly connected to the rotating shaft 33.

[0049] There are four wheels 31 , and the wheels 31 respectively arranged at one end of the frame 1 close to the column 5 are universal wheels.

[0050] A spirit level is provided on the frame 1; a leveling device 2 is arranged at the four corners of the frame 1; the leveling device 2 includes a nut welded to the frame 1, a screw threadedly connected to the nut, and a locking nut for locking the screw; a through hole is provided at one end of the screw; a steel rod is provided in the through hole; the steel rod is used to rotate the screw; a chassis is provided at the other end of the screw, and when the frame 1 needs to be leveled, the chassis abuts against the ground.

[0051] The working process of the utility model is as follows:

[0052] Push the device to the vicinity of the circuit breaker trolley that needs to be disassembled, turn the screw rod to make the chassis contact with the ground, observe the level meter, adjust the four screw rods in sequence to make the frame level, start the oil cylinder 34, and the oil cylinder rod contracts to retract the wheel 31;

[0053] Then, the reducer 8 is rotated, the drum 85 is rotated, the wire rope 82 is wound on the drum 85, and the wire rope 82 drives the first movable pulley 83 and the second movable pulley 81 on the lifting frame 6 to rotate at the same time, and the wire rope 82 pulls up the lifting frame 6; after reaching the appropriate position, the sliding tooth 52 is rotated so that the sliding tooth 52 is inserted into the tooth groove of the rack 51, and then the sliding tooth 52 is positioned with the set screw 53 to prevent the sliding tooth 52 from rotating. In this way, the lifting frame 6 is locked with the column 5 to prevent the device from tipping over due to the inadvertent rotation of the reducer 8.

[0054] After placing the circuit breaker trolley on the lifting frame 6, lower the wheel 31, rotate the four screws synchronously to make the wheel 31 bear force, and move the device away; then loosen the sliding tooth 52, disengage the sliding tooth 52 from the rack 51, rotate the reducer 8 to make the lifting frame 6 drive the circuit breaker trolley to the bottom, and then push the column 5 to transport the circuit breaker trolley to a suitable position.

[0055] Example 2

[0056] This embodiment is basically the same as embodiment 1.

[0057] The difference is that

[0058] The output end of the reducer 8 is provided with a crank. When the lifting frame 6 needs to be raised or lowered, the crank is turned, and the reducer 8 drives the lifting frame 6 to be raised or lowered through the wire rope 82 and the pulley block.

[0059] The crank handle is provided to avoid damaging the output end of the reducer 8 by using other devices such as a wrench, and the crank handle is also a labor-saving lever, which can rotate the reducer 8 relatively easily.

[0060] Example 3

[0061] This embodiment is basically the same as embodiment 1.

[0062] The difference is that

[0063] like Figure 1 As shown, a handle 9 is provided on the column 5. When pushing the frame 1 to move, the operator holds the handle 9 with his hand to push the device and transport the circuit breaker trolley to a suitable position for easy maintenance.

[0064] Example 4

[0065] This embodiment is basically the same as embodiment 1.

[0066] The difference is that

[0067] The frame 1 is provided with a foot pedal, which is connected to the oil cylinder through an oil circuit switch;

[0068] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A transfer device for circuit breakers in all centrally mounted switch cabinets, characterized in that: It comprises a frame (1), a lifting frame (6) mounted on the frame (1), a locking device (7) for positioning the lifting frame (6), a driving device for driving the lifting frame (6) to rise and fall, a walking device (3) mounted on the frame (1), and a leveling device (2) for adjusting the level of the frame (1) when receiving a circuit breaker; the lifting frame (6) is used to receive the circuit breaker.

2. A transfer device for circuit breakers in all center-mounted switch cabinets according to claim 1, characterized in that: Two upright posts (5) are provided on both sides of one end of the vehicle frame (1), and one end of the lifting frame (6) is slidably connected to the upright posts (5).

3. A transfer device for circuit breakers in all center-mounted switch cabinets according to claim 2, characterized in that: The driving device comprises a reducer (8) mounted on the column (5) on one side of the frame (1) and a pulley system provided between the reducer (8) and the lifting frame (6).

4. A transfer device for circuit breakers in all center-mounted switch cabinets according to claim 3, characterized in that: The pulley system comprises a drum (85) mounted at the output end of the reducer (8), a fixed pulley (84) mounted at the top of the column (5) on one side of the frame (1), a first movable pulley (83) and a second movable pulley (81) respectively mounted on both sides of the lifting frame (6), and a steel wire rope (82) arranged between the drum (85) and the top of the column (5) on the other side; one end of the steel wire rope (82) is fixed to the top of the column (5) on the other side, and the other end of the steel wire rope (82) passes through the second movable pulley (81), the first movable pulley (83), and the fixed pulley (84) in sequence and is then fixed to the drum (85).

5. A transfer device for circuit breakers in all center-mounted switch cabinets according to claim 4, characterized in that: The output end of the reducer (8) is provided with a crank, and when the lifting frame (6) needs to be raised or lowered, the crank is rotated, and the reducer (8) drives the lifting frame (6) to be raised or lowered via a steel wire rope (82) and a pulley block.

6. A transfer device for circuit breakers in all center-mounted switch cabinets according to claim 5, characterized in that: The locking device (7) comprises a rack (51) fixed to the column (5) on the side provided with the reducer (8) and a sliding tooth (52) matched with a tooth groove of the rack (51); the sliding tooth (52) is rotatably connected to the lifting frame (6), and a positioning screw (53) is threadedly connected to the sliding tooth (52); when the lifting frame (6) needs to be positioned on the column (5) and does not move, the sliding tooth (52) abuts against the tooth groove of the rack (51), and then the sliding tooth (52) is fixed to the lifting frame (6) by the positioning screw (53).

7. A transfer device for circuit breakers in all center-mounted switch cabinets according to claim 1, characterized in that: The walking device (3) comprises foldable wheels (31) arranged at four corners of the bottom surface of the frame (1).

8. A transfer device for circuit breakers in all center-mounted switch cabinets according to claim 7, characterized in that: The walking device (3) further comprises a bracket (32) fixedly connected to the bottom surface of the frame (1), a rotating shaft (33) rotatably connected to the bracket (32), and a cylinder (34) for driving the wheel (31) to fold; the cylinder body of the cylinder (34) is hinged to the frame (1), and the cylinder rod of the cylinder (34) is hinged to the wheel (31); the cylinder (34) is arranged to be inclined downward compared to the horizontal plane; one end of the cylinder rod of the cylinder (34) is the lower end; and the wheel (31) is fixedly connected to the rotating shaft (33).

9. A transfer device for circuit breakers in all center-mounted switch cabinets according to claim 8, characterized in that: There are four wheels (31), and the wheels (31) respectively arranged at one end of the frame (1) close to the column (5) are universal wheels.

10. A transfer device for circuit breakers in all center-mounted switch cabinets according to claim 1, characterized in that: The frame (1) is provided with a spirit level; the leveling device (2) is arranged at the four corners of the frame (1); the leveling device (2) comprises a nut welded to the frame (1), a screw threadedly connected to the nut, and a locking nut for locking the screw; a through hole is provided at one end of the screw; a steel rod is provided in the through hole; the steel rod is used to rotate the screw; a chassis is provided at the other end of the screw, and when the frame (1) needs to be leveled, the chassis abuts against the ground.

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