Switching circuit breaker transfer equipment

Abstract

The invention belongs to the field of electric power overhaul auxiliary equipment, and particularly discloses switch circuit breaker transfer equipment which comprises a transfer trolley and a transfer platform, and the transfer trolley comprises a mounting plate, walking wheels arranged at the lower end of the mounting plate and a plurality of height adjusting rods mounted on the mounting plate; the transfer platform comprises a placing plate and a plurality of supporting mechanisms installed at the bottom of the placing plate, clamping grooves used for being clamped with the ends of the height adjusting rods are formed in the bottom face of the placing plate, each supporting mechanism comprises a supporting rod fixed to the lower end of the placing plate, a first sliding plate is slidably connected to the supporting rod in the axial direction of the supporting rod, and a first piston barrel is fixed to the first sliding plate. A first piston is slidably connected into the first piston barrel in the axial direction of the first piston barrel, and a first push rod is fixed to the first piston and slidably connected to the first sliding plate. By the adoption of the scheme, the problems that during centralized maintenance of the switch cabinet, transfer of a plurality of circuit breakers is involved, the number of the transfer trolleys is required, and otherwise the maintenance efficiency is affected can be solved.

Description

Technical Field

[0001] The invention belongs to the field of power maintenance auxiliary equipment, and in particular relates to switch breaker transport equipment. Background Art

[0002] The 10kV power equipment in the substation is an important equipment in the operation of the power grid. The 10kV circuit breaker and knife switch are generally integrated in the high-voltage switch cabinet. In order to ensure the reliable and stable operation of the 10kV power equipment, the 10kV power equipment will be shut down for equipment pre-testing during daily operation. In order to save time, personnel and costs, it is usually chosen to conduct centralized maintenance on the 10kV power equipment, that is, the entire bus section is shut down for maintenance. In order to ensure the safety of on-site personnel, the work site requires that the circuit breaker that is shut down be turned into maintenance status. For the KYN cabinet, its switch is turned into maintenance status, and professional tools are needed to pull the circuit breaker out of the cabinet and place it on the transfer cart for transportation.

[0003] The transfer cart in the prior art needs to be adjusted to the same height as the switch cabinet when in use, so that the circuit breaker is directly placed on the transfer cart after being pulled out of the switch cabinet. For this purpose, a retractable height-adjustable platform is provided on the transfer cart, which results in a large size of the transfer cart and occupies a large area when not in use. Therefore, there are generally not many transfer carts in a substation. However, when the switch cabinet is centrally overhauled, the transfer of multiple circuit breakers is involved, which puts forward requirements for the number of transfer carts, otherwise it will affect the overhaul efficiency. During the transportation process, the circuit breaker cannot be directly removed from the transfer cart and placed on the ground. This process may cause damage to the equipment and injuries to personnel. At the same time, the equipment may be damp and absorb dust, resulting in unqualified insulation of the equipment, affecting the operation of the equipment. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides switch circuit breaker transfer equipment to solve the problem that a retractable height-adjustable platform is provided on the transfer cart, which results in the transfer cart being large in size and occupying more space when not in use. Therefore, there are generally not many transfer carts in a substation. However, when the switch cabinet is centrally overhauled, the transfer of multiple circuit breakers will be involved, which puts forward requirements on the number of transfer carts, otherwise it will affect the maintenance efficiency.

[0005] According to an embodiment of the present invention, the present invention adopts the following technical solution:

[0006] The switch circuit breaker transfer equipment includes a transfer vehicle and a transfer platform. The transfer vehicle includes a mounting plate, walking wheels arranged at the lower end of the mounting plate and a plurality of height-adjusting rods installed on the mounting plate, and the height-adjusting rods are a retractable structure. The transfer platform includes a placement plate and a plurality of support mechanisms installed at the bottom of the placement plate, a space for inserting the mounting plate is formed between the plurality of support mechanisms, a card slot for engaging with the end of the height-adjusting rod is provided on the bottom surface of the placement plate, the support mechanism includes a support rod fixed to the lower end of the placement plate, a first slide plate is connected to the support rod in an axially sliding manner, a first piston barrel is fixed to the first slide plate, a first piston is connected to the first piston barrel in an axially sliding manner, a first push rod is fixed to the first piston, the first push rod is slidably connected to the first slide plate, the sliding direction of the first push rod is along the axial direction of the support rod, and a plurality of first ventilation holes are provided on the end surface of the first piston barrel.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] 1. In this solution, the transfer platform and the transfer vehicle are connected by a height adjustment rod. When the circuit breaker needs to be transferred, the transfer platform is installed on the transfer vehicle, and the circuit breaker is placed on the placement plate. Then the transfer platform can be moved to a suitable position for placement. The placement plate is supported by a supporting mechanism, and the circuit breaker will not touch the ground. You only need to replace the new transfer platform and assemble it on the transfer vehicle to transfer the next circuit breaker. The transfer platform and the transfer vehicle are designed separately and can be stored separately, and the transfer platform can be directly stacked vertically to reduce floor space.

[0009] 2. Through the design of the first piston barrel, on the one hand, when the support rod touches the ground, the first slide plate can be slid to make the first piston barrel touch the ground, thereby increasing the ground area and improving the stability of the transfer platform. On the other hand, by sliding the first push rod, the gas in the first piston barrel is discharged through the first vent before the first piston barrel touches the ground, which can clean the nearby ground to a certain extent, and then the first push rod is slid in the opposite direction to draw the outside air into the first piston barrel. When the first piston barrel touches the ground, negative pressure can be formed, so that the first piston barrel is adsorbed on the ground, further improving the stability of the transfer platform.

[0010] Furthermore, limiting mechanisms are provided on both sides of the bottom of the placement plate, and the limiting mechanisms are arranged between adjacent supporting mechanisms. The limiting mechanisms include a limiting rod hinged on the placement plate, and a mounting plate is rotatably connected to the limiting rod. The rotation axis of the mounting plate is perpendicular to the axis of the limiting rod, and a second slide is connected to the mounting plate along its radial sliding direction. The second slide is used to limit the placed items on the placement plate.

[0011] Furthermore, a second piston barrel is fixed on the second slide, a second piston is slidably connected in the second piston barrel along its axial direction, a second push rod is fixed on the second piston, the second push rod is slidably connected to the second slide, the sliding direction of the second push rod is along the axial direction of the second piston barrel, and a plurality of second ventilation holes are opened on the end surface of the second piston barrel.

[0012] Furthermore, the support rod is a retractable structure.

[0013] Furthermore, movable plates are hinged on both sides of the mounting plate, and the movable plates are used to support the support rods.

[0014] Furthermore, a plug rod is slidably connected to the mounting plate, and a plug hole for inserting the plug rod is provided on the movable plate.

[0015] Furthermore, a first detection member for detecting the telescopic length of the support rod is installed on the placement plate.

[0016] Furthermore, a plurality of grooves or protrusions are provided at the top of the slot along its circumference.

[0017] Furthermore, the height-adjusting rod is rotatably connected to the mounting plate, and a clamping portion for clamping with a groove or a protrusion in the clamping slot is provided at the end of the height-adjusting rod.

[0018] Furthermore, a second detection member for detecting the telescopic length of the height-adjusting rod is installed on the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention.

[0020] Figure 2 A schematic diagram of the state of a circuit breaker is placed for an embodiment of the present invention.

[0021] Figure 3 for Figure 2 Enlarged view of part A.

[0022] Figure 4 It is a bottom view of the card slot in the embodiment of the present invention.

[0023] In the figure: 1. mounting plate; 2. walking wheel; 3. placement plate; 4. height adjustment rod; 5. insertion rod; 6. hinge shaft; 7. movable plate; 9. support rod; 10. first slide plate; 11. first push rod; 12. first piston barrel; 13. first piston; 14. first vent; 15. limit rod; 16. mounting plate; 17. second slide plate; 18. second push rod; 19. second piston; 20. second vent; 21. circuit breaker; 22. slot; 23. protrusion; 24. second piston barrel. DETAILED DESCRIPTION

[0024] The present invention is further described in detail below with reference to the accompanying drawings, and specific implementation methods are given.

[0025] like Figure 1 , Figure 2 As shown, the switch circuit breaker transfer equipment includes a transfer vehicle and a transfer platform. The transfer vehicle includes a mounting plate 1, walking wheels 2 arranged at the lower end of the mounting plate 1, and a plurality of height-adjusting rods 4 installed on the mounting plate 1. The height-adjusting rod 4 is a retractable structure. Specifically, the height-adjusting rod 4 uses a conventional electric telescopic rod in the prior art. In this embodiment, the lower end of the height-adjusting rod 4 is fixed on the mounting plate 1.

[0026] The transfer platform includes a placement plate 3 and several groups of supporting mechanisms installed at the bottom of the placement plate 3. Space for the installation plate 1 to be inserted is formed between the multiple groups of supporting mechanisms, that is, the transfer platform can directly touch the ground through the support of the multiple groups of supporting mechanisms, and the installation plate 1 can be inserted between the multiple groups of supporting mechanisms so that the height-adjusting rod 4 is located below the placement plate 3. Then, by extending the height-adjusting rod 4, the transfer platform can be lifted upward to make the transfer platform off the ground, and the height of the transfer platform can be adjusted to adapt to the height of the switch cabinet.

[0027] The bottom surface of the placement plate 3 is provided with a slot 22 for engaging with the end of the height adjustment rod 4. Figure 4 As shown, the top of the slot 22 is provided with a plurality of grooves or protrusions 23 along its circumference. In this embodiment, the slot 22 is provided with a plurality of protrusions 23 at the top, and grooves are formed between adjacent protrusions 23. The end of the height adjustment rod 4 is provided with a clamping portion for clamping with the grooves or protrusions 23 in the slot 22. In this embodiment, the clamping portion is a convex block for inserting into the groove formed between adjacent protrusions 23. The clamping cooperation between the clamping portion and the top of the slot 22 improves the cooperation stability between the placement plate 3 and the height adjustment rod 4, and prevents the placement plate 3 from shaking relative to the height adjustment rod 4. The height-adjusting rod 4 is rotatably connected to the mounting plate 1, and a motor for driving the height-adjusting rod 4 to rotate is installed on the mounting plate 1. When the height-adjusting rod 4 is extended, the protrusion on the height-adjusting rod 4 and the protrusion 23 in the slot 22 abut against each other. The height-adjusting rod 4 can be rotated to align the grooves between the protrusion on the height-adjusting rod 4 and the adjacent protrusions 23 in the slot 22, and the height-adjusting rod 4 can be extended again to better align the height-adjusting rod 4 and the slot 22.

[0028] A second detection member for detecting the telescopic length of the height-adjusting rod 4 is installed on the mounting plate 1. Specifically, the second detection member uses a displacement sensor in the prior art. The displacement of the clamping part is detected by the displacement sensor, and then the telescopic length of the height-adjusting rod 4 is determined. On the one hand, it is used to assist in determining whether the height-adjusting rod 4 is completely clamped and aligned with the clamping slot 22. On the other hand, it controls the telescopic length of the height-adjusting rod 4, and then controls the position height of the transfer platform lifted by the height-adjusting rod 4.

[0029] The supporting mechanism includes a supporting rod 9 fixed to the lower end of the placement plate 3, a first slide plate 10 is connected to the supporting rod 9 in a sliding manner along its axial direction, and a cylinder for driving the first slide plate 10 to slide is installed at the lower end of the placement plate 3. A first piston barrel 12 is fixed to the first slide plate 10, a first piston 13 is connected to the first piston barrel 12 in a sliding manner along its axial direction, a first push rod 11 is fixed to the first piston 13, the first push rod 11 is connected to the first slide plate 10 in a sliding manner, the sliding direction of the first push rod 11 is along the axial direction of the supporting rod 9, a cylinder for driving the first push rod 11 to slide is installed on the first slide plate 10, and a plurality of first vent holes 14 are provided on the end surface of the first piston barrel 12, and the first piston 13 is driven to slide in the first piston barrel 12 by the first push rod 11, so as to realize the vacuuming or blowing of the first piston barrel 12.

[0030] When the circuit breaker 21 needs to be transported, the transport platform is assembled on the transport vehicle, specifically, the mounting plate 1 is inserted between the multiple sets of support mechanisms, the height adjustment rod 4 is located below the placement plate 3, and the height adjustment rod 4 is extended so that the height adjustment rod 4 is inserted into the slot 22. Then the transport platform is transported to the switch cabinet by the transport vehicle, and the height of the transport platform is adjusted by the height adjustment rod 4 so that the height of the placement plate 3 is flush with the switch cabinet, and then the circuit breaker 21 is directly pulled and moved onto the placement plate 3.

[0031] Then the transfer platform can be moved to a suitable position. At this time, the height of the height adjustment rod 4 is adjusted so that the support mechanism touches the ground. The placement plate 3 is supported by the support mechanism, and the circuit breaker 21 does not touch the ground. It is only necessary to replace a new transfer platform and assemble it on the transfer vehicle to transfer the next circuit breaker 21. After the support rod 9 touches the ground, slide the first slide plate 10. Before the first piston barrel 12 touches the ground, slide the first push rod 11 to discharge the gas in the first piston barrel 12 through the first vent 14, which can clean the nearby ground to a certain extent. Then slide the first push rod 11 in the opposite direction to draw outside air into the first piston barrel 12. When the first piston barrel 12 touches the ground, negative pressure can be formed, so that the first piston barrel 12 is adsorbed on the ground, thereby improving the stability of the transfer platform.

[0032] In another embodiment of the present invention, both sides of the bottom of the placement plate 3 are provided with limiting mechanisms, and the limiting mechanisms are arranged between adjacent supporting mechanisms. Taking the placement plate 3 having a rectangular cross section as an example, four groups of supporting mechanisms are arranged at the four corners of the placement plate 3, and two groups of limiting mechanisms are arranged in the middle of the left and right sides of the placement plate 3. The limiting mechanism includes a limiting rod 15 hinged on the placement plate 3, and a motor for driving the limiting rod 15 to deflect is installed on the placement plate 3. By adjusting the angle of the limiting rod 15, the free end of the limiting rod 15 can be directed downward or upward. When the free end of the limiting rod 15 is directed downward, the limiting mechanism can assist the supporting mechanism in supporting the placement plate 3. When the free end of the limiting rod 15 is directed upward, the limiting mechanism is used to limit the placement object (i.e., the circuit breaker 21) placed on the placement plate 3.

[0033] Specific, combined Figure 3 As shown, the limiting rod 15 is rotatably connected to a mounting plate 16, the rotation axis of the mounting plate 16 is perpendicular to the axis of the limiting rod 15, and the mounting plate 16 is slidably connected to a second slide plate 17 along its radial direction, and the second slide plate 17 is used to limit the position of the items placed on the placement plate 3. Specifically, the limiting rod 15 is equipped with a motor for driving the mounting plate 16 to rotate, and the mounting plate 16 is equipped with a cylinder for driving the second slide plate 17 to slide. A second piston barrel 24 is fixed to the second slide plate 17, and a second piston 19 is slidably connected to the second piston barrel 24 along its axial direction. A second push rod 18 is fixed to the second piston 19, and the second push rod 18 is slidably connected to the second slide plate 17, and the sliding direction of the second push rod 18 is along the axial direction of the second piston barrel 24. A cylinder for driving the second push rod 18 to slide is installed on the second slide plate 17, and a plurality of second vent holes 20 are provided on the end surface of the second piston barrel 24, and the second piston 19 is driven by the second push rod 18 to slide in the second piston barrel 24, so as to realize the second piston barrel 24 to evacuate or blow air.

[0034] During specific use, when the circuit breaker 21 is moved onto the placement plate 3 , the free end of the limiting rod 15 faces downward to avoid obstruction of the circuit breaker 21 from moving onto the placement plate 3 . After the circuit breaker 21 is placed on the placement plate 3, the limiting rod 15 is rotated so that the free end of the limiting rod 15 faces upward, and the angle of the mounting plate 16 is rotated so that the end face of the second piston barrel 24 is aligned with the side of the circuit breaker 21, and then the second slide plate 17 is slid to make the second piston barrel 24 close to the circuit breaker 21. In this process, the gas in the second piston barrel 24 is first discharged through the second vent hole 20 by sliding the second push rod 18, which can clean the dust on the surface of the circuit breaker 21 to a certain extent, and then the second push rod 18 is slid in the opposite direction to draw outside air into the second piston barrel 24. When the second piston barrel 24 and the side of the circuit breaker 21 are attached to each other, negative pressure can be formed, so that the second piston barrel 24 is adsorbed on the circuit breaker 21, forming a limit for the circuit breaker 21, which has a protective effect on the circuit breaker 21 during transportation and reduces the shaking of the circuit breaker 21.

[0035] In another embodiment of the present invention, in order to facilitate the assembly of the transfer platform and the transfer vehicle, in the above embodiment, the mounting plate 1 can be directly inserted into the bottom of the transfer platform for assembly. However, with such a design, the size of the placement plate 3 will be larger than the size of the mounting plate 1. Therefore, when the transfer platform is assembled on the transfer vehicle, it may be insufficiently supported only by the height adjustment rod 4. For this reason, in this solution, the support rod 9 is a telescopic structure. Specifically, the support rod 9 uses a conventional electric telescopic rod in the prior art. A first detection member for detecting the telescopic length of the support rod 9 is installed on the placement plate 3. Specifically, the first detection member uses a displacement sensor in the prior art. The displacement of the end of the support rod 9 is detected by the displacement sensor, and then the telescopic length of the support rod 9 is determined. The height of the placement plate 3 from the ground can be adjusted by the extension and retraction of the support rod 9. After the support rod 9 is retracted, it is also convenient to store the transfer platform.

[0036] The mounting plate 1 is hinged with movable plates 7 on both sides. Specifically, the ends of the movable plates 7 are fixed with hinge shafts 6, which are rotatably connected to the mounting plate 1. The movable plates 7 are used to support the support rods 9. When the support rods 9 are off the ground and the lower ends of the support rods 9 are higher than the height of the mounting plate 1, the movable plates 7 can be rotated so that the movable plates 7 are in a horizontal state. The movable plates 7 will be located directly below the support rods 9 to support the support rods 9. At this time, the movable plates 7 can also be adsorbed on the movable plates 7 by the negative pressure of the first piston barrel 12. In actual use, the movable plates 7 can be rotated to form support after the height adjustment rod 4 lifts the transfer platform to a certain height, or the support rods 9 can be directly retracted so that the support rods 9 are directly off the ground, and then the movable plates 7 are rotated to form support. When the height of the transfer platform is raised, the length of the support rods 9 is adjusted in real time so that the movable plates 7 always support it. In this process, the position height of the transfer platform can also be assisted in judging by detecting the telescopic height of the support rods 9, so that the position height adjustment of the transfer platform is more accurate.

[0037] The mounting plate 1 is slidably connected with an insertion rod 5, and the movable plate 7 is provided with a socket for inserting the insertion rod 5. During the actual design process, the hinge shaft 6 is also provided with a socket and is connected with the socket on the movable plate 7. After the staff moves to the movable plate 7, they slide the insertion rod 5 so that the insertion rod 5 is inserted into the socket, and the movable plate 7 is limitedly supported so that the movable plate 7 is in a horizontal state.

[0038] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. Switch circuit breaker transfer equipment, characterized by: The utility model comprises a transfer vehicle and a transfer platform. The transfer vehicle comprises a mounting plate, walking wheels arranged at the lower end of the mounting plate and a plurality of height-adjusting rods installed on the mounting plate, and the height-adjusting rods are a retractable structure. The transfer platform comprises a placing plate and a plurality of supporting mechanisms installed at the bottom of the placing plate, and a space for inserting the mounting plate is formed between the plurality of supporting mechanisms. The bottom surface of the placing plate is provided with a card groove for clamping with the end of the height-adjusting rod. The supporting mechanism comprises a support rod fixed to the lower end of the placing plate, a first slide plate is connected to the support rod in an axially sliding manner, a first piston barrel is fixed to the first slide plate, a first piston is connected to the first piston barrel in an axially sliding manner, a first push rod is fixed to the first piston, the first push rod is slidably connected to the first slide plate, the sliding direction of the first push rod is along the axial direction of the support rod, and a plurality of first ventilation holes are provided on the end surface of the first piston barrel.

2. The switch circuit breaker transport equipment according to claim 1, characterized in that: Limiting mechanisms are provided on both sides of the bottom of the placement plate, and the limiting mechanisms are arranged between adjacent supporting mechanisms. The limiting mechanisms include a limiting rod hinged on the placement plate, and a mounting plate is rotatably connected to the limiting rod. The rotation axis of the mounting plate is perpendicular to the axis of the limiting rod, and a second slide is connected to the mounting plate in a radially sliding manner. The second slide is used to limit the items placed on the placement plate.

3. The switch circuit breaker transport equipment according to claim 2, characterized in that: A second piston barrel is fixed on the second slide plate, a second piston is slidably connected in the second piston barrel along its axial direction, a second push rod is fixed on the second piston, the second push rod is slidably connected to the second slide plate, the sliding direction of the second push rod is along the axial direction of the second piston barrel, and a plurality of second ventilation holes are opened on the end surface of the second piston barrel.

4. The switch circuit breaker transport equipment according to claim 1, characterized in that: The support rod is a telescopic structure.

5. The switch circuit breaker transport equipment according to claim 4, characterized in that: Movable plates are hinged on both sides of the mounting plate, and the movable plates are used to support the support rods.

6. The switch circuit breaker transport equipment according to claim 5, characterized in that: The mounting plate is slidably connected with an insertion rod, and the movable plate is provided with an insertion hole for the insertion of the insertion rod.

7. The switch circuit breaker transport equipment according to claim 4, characterized in that: The placing plate is provided with a first detection member for detecting the telescopic length of the support rod.

8. The switch circuit breaker transport equipment according to claim 1, characterized in that: The top of the slot is provided with a plurality of grooves or protrusions along its circumference.

9. The switch circuit breaker transport equipment according to claim 8, characterized in that: The height-adjusting rod is rotatably connected to the mounting plate, and a clamping portion for clamping with a groove or a protrusion in the clamping slot is provided at the end of the height-adjusting rod.

10. The switch circuit breaker transport equipment according to claim 1, characterized in that: A second detection member for detecting the telescopic length of the height-adjusting rod is installed on the mounting plate.

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