Electric test car

Abstract

The present invention discloses an electric power test trolley, comprising a first support plate, a second support plate and a third support plate which are sequentially arranged from bottom to top, and a lifting assembly is arranged between the first support plate and the second support plate, and between the second support plate and the third support plate; a main test equipment, a cable roller and a cable roller driving assembly are fixedly arranged on the first support plate, and the cable roller and the cable roller driving assembly are detachably arranged on one side of the main test equipment; a controller is fixedly arranged on the third support plate; and the controllers are respectively connected to the main test equipment and the auxiliary test equipment by means of electrical connection. The present invention has a compact structure and strong practicality, and can reduce the preliminary preparation work of electric power maintenance personnel when conducting on-site withstand voltage testing, and can effectively improve the efficiency of electric power testing. The present invention is suitable for electric power production sites, and is used for on-site detection and testing of electric power safety equipment.

Description

Technical Field

[0001] The invention belongs to the technical field of electric power testing, and relates to a device for performing withstand voltage testing on electric power equipment, in particular to an electric power testing trolley. Background Art

[0002] In order to ensure the safety and reliability of power production sites, the "State Grid Corporation Power Safety Work Regulations" issued by my country clearly stipulates that it is necessary to conduct on-site tests and experiments on power safety equipment such as main transformers, lightning arresters, circuit breakers, SF6 combination electrical appliances and transformers on a regular basis. Nowadays, various test instruments and corresponding auxiliary tools are generally transported to the site by loading trucks, and then manually unloaded and installed before the power safety equipment on site can be tested and experimented. However, due to the large size and weight of various test instruments, it is easy to cause damage to the instruments due to squeezing or bumps during loading and transportation; and it is extremely inconvenient to carry and install the instruments on site, which reduces the work efficiency of power maintenance personnel to a certain extent.

[0003] Of course, there are trolleys specially used for power tests, but the cable reels on these trolleys are fixed. When conducting on-site tests and experiments on power safety equipment, a certain length of cable is often required to cooperate with the test instruments to complete the test work, and the length of the cable is difficult to determine due to the complex conditions on the test site. Therefore, when using this type of trolley for withstand voltage testing, once the cable length is insufficient, the withstand voltage test will be difficult to carry out, which seriously reduces the efficiency of the power test. Summary of the invention

[0004] In order to solve the above deficiencies existing in the prior art, the present invention aims to provide an electric power test trolley, so as to further reduce the labor intensity of electric power maintenance personnel and improve the efficiency of electric power testing while avoiding damage to the electric power testing equipment during transportation.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: an electric test trolley, comprising a first support plate, a second support plate and a third support plate arranged in sequence from bottom to top; a first lifting assembly for supporting the second support plate and controlling the lifting of the second support plate is fixedly arranged between the first support plate and the second support plate, and a second lifting assembly for supporting the third support plate and controlling the lifting of the third support plate is fixedly arranged between the second support plate and the third support plate; wherein a universal wheel is fixedly arranged at each of the four ends of the lower surface of the first support plate;

[0006] The main test equipment, cable roller and cable roller driving assembly are fixedly installed on the first support plate, and the cable roller and cable roller driving assembly are detachably arranged on one side of the main test equipment; the third support plate is fixedly installed with a controller; the controller is respectively connected with the main test equipment and the auxiliary test equipment by means of electrical connection.

[0007] As a limitation of the present invention, it also includes an insulating component fixedly mounted on the first support plate, wherein the insulating component is any one of the following structures:

[0008] a. A first insulating baffle and a second insulating baffle respectively fixed on both sides of the main test equipment on the first support plate;

[0009] b. The first insulating baffle and the second insulating baffle are respectively fixed on both sides of the main test equipment on the first support plate, and two movable plates are fixed on the first insulating baffle and the second insulating baffle through slots at the top ends of the first insulating baffle and the second insulating baffle, and the bottom end of the movable plate is fixedly connected to the bottom of the slot through a compression spring.

[0010] As a further limitation of the present invention, at least one placement plate is fixedly provided on the side opposite to the first insulating baffle and the second insulating baffle, and each placement plate is provided with a wire package placement component.

[0011] As a further limitation of the present invention, the wire bundle placement assembly includes a conveyor belt fixed on a placement plate and at least one wire bundle placement component fixed on the upper surface of the conveyor belt; each wire bundle placement component includes a connecting plate, a fixing block and a wire bundle fixing shaft, the bottom end of the connecting plate is fixedly connected to the conveyor belt through the fixing block, and the top end of the connecting plate is fixedly connected to the wire bundle fixing shaft.

[0012] As a further limitation of the present invention, the cable roller drive assembly includes a driving component fixedly mounted on a first support plate via a support plate and a special-shaped shaft having one end fixedly connected to an output end of the driving component; the other end of the special-shaped shaft is movably connected to a second insulating baffle via a bearing.

[0013] As a further limitation of the present invention, the driving assembly and the special-shaped shaft are fixedly connected via a telescopic rod and a fixed sleeve; one end of the telescopic rod is movably connected to the output end of the driving assembly, and the other end of the telescopic rod is fixedly connected to the fixed sleeve; the fixed sleeve is fixed to the support plate via a return spring.

[0014] As a further limitation of the present invention, a cable roller is sleeved on the special-shaped shaft, and an annular baffle is fixedly provided at one end of the special-shaped shaft connected to the second insulating baffle, and the annular baffle is located between the cable roller and the second insulating baffle.

[0015] As a further limitation of the present invention, the support plate is slidably connected to the first support plate through the bottom plate; a limiting slider is fixedly provided on the lower surface of the bottom plate, and the limiting slider is located in the limiting sliding groove on the upper surface of the first support plate.

[0016] As a further limitation of the present invention, ball grooves are provided on both sides of the lower surface of the base plate, and a plurality of balls are provided in the ball grooves and are in contact with the upper surface of the first support plate; a threaded through groove is also provided on the base plate, and a threaded limiting rod is connected through the threaded through groove, and a damping belt adapted to the threaded limiting rod is provided on the upper surface of the first support plate.

[0017] As another limitation of the present invention, a guide rod is fixedly disposed at four ends of the upper surface of the first support plate, and the guide rod passes through the second support plate and the third support plate in sequence and extends to the top of the third support plate.

[0018] Due to the adoption of the above technical solution, the present invention has the following beneficial effects compared with the prior art:

[0019] (1) The electric power test trolley in the present invention is configured as a three-layer structure, and the height of each layer is adjustable through a lifting assembly, so that the electric power test trolley can be suitable for installing main test equipment and auxiliary test equipment of different volumes. That is, no matter whether the test instrument installed on the electric power test trolley is large or small, the electric power test trolley can ensure the compactness and stability of the overall structure, thereby effectively avoiding the problem of the test instrument being damaged due to squeezing or bumping during transportation, and also making it unnecessary for power maintenance personnel to assemble various test instruments on site, thereby reducing the labor intensity of power maintenance personnel and improving the efficiency of power testing.

[0020] (2) In the present invention, by arranging a cable roller and a cable roller driving assembly on the first support plate, the cable roller driving assembly can drive the cable roller to rotate, thereby improving the cable unwinding efficiency and facilitating the access to the cable during on-site withstand voltage testing. Among them, the support plate for fixing the cable roller driving assembly is configured as a movable structure, so that the cable roller on the special-shaped shaft is easy to disassemble and replace, which can effectively avoid the problem of insufficient cable length during withstand voltage testing, ensure the normal conduct of withstand voltage testing, and further improve the efficiency of power testing.

[0021] (3) A placement plate is provided on the first support plate in the present invention. The wire package placement assembly on the placement plate can place multiple wire packages. Through the transmission of the conveyor belt, it can be ensured that there is always a wire package at one end of the placement plate, which is convenient for power maintenance personnel to take.

[0022] In summary, the present invention has a compact structure and strong practicality, can reduce the preliminary preparation work of power maintenance personnel when performing on-site voltage withstand testing, and can effectively improve the efficiency of power testing.

[0023] The invention is suitable for use in power production sites and is used for on-site detection and testing of power safety equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1 It is a front view of the overall structure of an embodiment of the present invention;

[0026] Figure 2 It is a side view of the overall structure of an embodiment of the present invention;

[0027] Figure 3 It is a schematic diagram of the longitudinal section structure of a cable roller driving assembly according to an embodiment of the present invention;

[0028] Figure 4 It is a schematic diagram of the longitudinal section structure of a wire package placement assembly according to an embodiment of the present invention;

[0029] In the figure: 1. first support plate; 2. second support plate; 3. third support plate; 41. synchronous lifting cylinder; 42. cylinder push rod; 5. second lifting assembly; 6. main test equipment; 7. auxiliary test equipment; 8. controller; 9. universal wheel; 10. guide rod; 11. first insulating baffle; 12. second insulating baffle; 13. movable plate; 14. cable roller; 15. cable roller driving assembly; 16. telescopic rod; 17. fixing sleeve; 18. support plate; 19. bottom plate; 20. wire package placement assembly; 21. placement plate; 151. drive motor; 152. special-shaped shaft; 153. annular baffle; 191. limit slider; 192. limit slide groove; 193. ball; 194. threaded limit rod; 201. conveyor belt; 202. servo motor; 203. wire package placement component; 204. photoelectric sensor. DETAILED DESCRIPTION

[0030] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and understand the present invention, and are not used to limit the present invention.

[0031] Embodiment A power test vehicle

[0032] like Figures 1 to 4As shown, this embodiment includes a first support plate 1, a second support plate 2 and a third support plate 3 arranged in sequence from bottom to top, and the first support plate 1 and the second support plate 2, and the second support plate 2 and the third support plate 3 are respectively fixedly connected by lifting components, so that the height of each layer of the electric test trolley can be adjusted; and the first support plate 1 is fixed with a main test equipment 6, the second support plate 2 is fixed with an auxiliary test equipment 7, and the third support plate 3 is provided with a controller 8 for controlling the main test equipment 6 and the auxiliary test equipment 7. The controller 8 controls the main test equipment 6 and the auxiliary test equipment 7 respectively, and is assisted by the coordination of cables to complete the on-site detection and testing of the electric safety equipment. In this embodiment, the controller adopts the controller model ZLD-005 produced by Xinxiang Zhonglida Hydraulic Equipment Factory.

[0033] 1. Lifting components

[0034] The lifting assembly is used to support the second support plate 2 and the third support plate 3 and adjust the height of the second support plate 2 and the third support plate 3. Figure 1 As shown, the lifting assembly includes a first lifting assembly and a second lifting assembly 5, wherein the first lifting assembly is arranged between the first support plate 1 and the second support plate 2, and is used to support the second support plate 2 and control the lifting of the second support plate 2; the second lifting assembly 5 is arranged between the second support plate 2 and the third support plate 3, and is used to support the third support plate 3 and control the lifting of the third support plate 3. In this embodiment, the structures of the first lifting assembly and the second lifting assembly 5 are exactly the same, so only the structure of the first lifting assembly is described here. The first lifting assembly includes two synchronous lifting cylinders 41 respectively fixedly arranged at the middle of the two ends of the first support plate 1, and the positions of the two synchronous lifting cylinders 41 are symmetrical to each other. The output end of each synchronous lifting cylinder 41 is fixedly connected to a cylinder push rod 42, and the top end of the cylinder push rod 42 is fixedly connected to the lower surface of the second support plate 2. The synchronous lifting cylinder 41 cooperates with the cylinder push rod 42 to adjust the height of the second support plate 2.

[0035] like Figure 2 As shown, a guide rod 10 is fixedly provided at each of the four ends of the upper surface of the first support plate 1, and each guide rod 10 sequentially penetrates the second support plate 2 and the third support plate 3, and extends a certain length on the upper surface of the third support plate 3. The setting of the guide rod 10 ensures that the second support plate 2 or the third support plate 3 can move vertically up and down, so that when the height of the second support plate 2 or the third support plate 3 is adjusted, the position of the second support plate 2 or the third support plate 3 can be prevented from being offset. A universal wheel 9 is fixedly provided at each of the four ends of the lower surface of the first support plate to facilitate the movement of the entire device.

[0036] 2. Main test equipment 6 and auxiliary test equipment 7

[0037] The main test equipment 6 and the auxiliary test equipment 7 are the main test instruments used to complete the on-site withstand voltage test. The main test equipment 6 is fixed at the middle position of the upper surface of the first support plate 1, and the auxiliary test equipment 7 is fixed at the middle position of the upper surface of the second support plate 2. The main test equipment 6 and the auxiliary test equipment 7 are respectively connected to the controller 8 fixed on the upper surface of the third support plate 3 through wires. The instruments used as the main test equipment 6 and the auxiliary test equipment 7 are specifically selected according to the power test required on site, that is, the main test equipment 6 and the auxiliary test equipment 7 can be any one of the following instruments: A1-6000E precision dielectric loss measuring instrument, RSTC-100A loop resistance tester, HRSFQ-10KVA triple frequency power supply generator, HTCT-V transformer characteristic comprehensive tester, HTJF-H partial discharge detector. In this embodiment, the main test equipment 6 is the A1-6000E precision dielectric loss measuring instrument, and the auxiliary test equipment 7 is the RSTC-100A loop resistance tester.

[0038] 3. Insulation components

[0039] The insulation component plays an insulating and protective role and is used to fix and support the wire package placement component 20 and the cable roller drive component 15 mentioned below. The insulation component can be any of the following structures:

[0040] a. A first insulating baffle 11 and a second insulating baffle 12 fixedly mounted on the first support plate 1 and respectively located on both sides of the main test equipment 6;

[0041] b. A first insulating baffle 11 and a second insulating baffle 12 fixedly mounted on the first support plate 1 and respectively located on both sides of the main test equipment 6 , and two movable plates 13 fixedly mounted on the top ends of the first insulating baffle 11 and the second insulating baffle 12 .

[0042] In this embodiment, the insulating component is of the second structural form. Figure 1 As shown, the first insulating baffle 11 and the second insulating baffle 12 are both fixedly arranged on the first support plate 1 and are respectively located on both sides of the main test equipment 6. A movable plate 13 is fixedly arranged on the top of each of the first insulating baffle 11 and the second insulating baffle 12. The movable plate 13 is fixedly arranged on the first insulating baffle 11 and the second insulating baffle 12 through the slots at the top of the first insulating baffle 11 and the second insulating baffle 12, and the bottom end of the movable plate 13 is fixedly connected to the bottom of the slot through a compression spring. The setting of the compression spring enables the movable plate 13 to move upward until it hits the lower surface of the second support plate 2 when no force is applied, and the height adjustment of the second support plate 2 can be not affected while playing a separation role.

[0043] 4. Cable roller 14 and cable roller drive assembly 15

[0044] The cable roller 14 is used to wind and store the cable, and the cable roller driving assembly 15 is used to drive the cable roller 14 to rotate, so as to improve the efficiency of cable collection and release. Figure 3 As shown, the cable roller drive assembly 15 is detachably arranged on the outside of the second insulating baffle 12. The cable roller drive assembly 15 includes a driving component arranged on the first support plate 1 through a support plate 18 and a special-shaped shaft 152 whose one end is fixedly connected to the output end of the driving component, and the other end of the special-shaped shaft 152 not connected to the output end of the driving component is movably connected to the second insulating baffle 12 through a bearing. The cable roller 14 is sleeved on the special-shaped shaft 152, and an annular baffle 153 is fixedly arranged at one end of the special-shaped shaft 152 connected to the second insulating baffle 12. The annular baffle 153 is located between the cable roller 14 and the second insulating baffle 12, and plays a role in limiting the cable roller 14. In order to facilitate the rotation of the cable roller 14, the cross-section of the special-shaped shaft 152 is set to a polygonal shape.

[0045] In this embodiment, the driving component is a driving motor 151. Figure 3 As shown, the output end of the driving motor 151 is movably connected to the telescopic rod 16 through the transmission shaft, and the other end of the telescopic rod 16 is fixedly connected to the fixing sleeve 17, and the telescopic rod 16 is mainly used to support and fix the fixing sleeve 17. The fixing sleeve 17 is also connected to the support plate 18 through a reset spring, and the setting of the reset spring can automatically clamp and fix the special-shaped groove on the fixing sleeve 17 and the special-shaped shaft 152 together.

[0046] The support plate 18 is connected to the first support plate 1 by sliding through the bottom plate 19. Figure 3 As shown, a limiting slider 191 is fixedly arranged at the middle position of the lower surface of the bottom plate 19, and the limiting slider 191 is located in a limiting slide groove 192 on the upper surface of the first support plate 1, so that the limiting slider 191 cooperates with the limiting slide groove 192 to fix the bottom plate 19 on the first support plate 1, and restricts the bottom plate 19 to only perform linear motion on the first support plate 1. Ball grooves are provided on both sides of the lower surface of the bottom plate 19, and a plurality of balls 193 are arranged in the ball grooves to fit the upper surface of the first support plate 1. The arrangement of the balls 193 can reduce the friction between the bottom plate 19 and the first support plate 1, so that the movement of the bottom plate 19 is smoother. A threaded through groove is also provided on the outer side of the ball groove on the bottom plate 19, and a threaded limiting rod 194 is connected through the threaded through groove, and a damping belt adapted to the threaded limiting rod 194 is provided on the upper surface of the first support plate 1. The threaded limiting rod 194 cooperates with the damping belt to temporarily limit and fix the bottom plate 19.

[0047] 5. Wire package placement component 20

[0048] The wire package placement assembly 20 is used to store the wire package. At least one placement plate 21 is provided on the side opposite to the first insulating baffle 11 and the second insulating baffle 12, and each placement plate 21 is provided with a wire package placement assembly 20. In this embodiment, two placement plates 21 are provided on the upper and lower sides of the first insulating baffle 11. Figure 4 As shown, the wire package placement assembly 20 includes a conveyor belt 201 fixed on a placement plate 21 and at least one wire package placement component 203 fixed on the upper surface of the conveyor belt 201. Among them, placement grooves are provided at both ends of the placement plate 21, and guide rollers are movably connected inside the placement grooves through pins. The conveyor belt 201 is sleeved on the guide rollers to be fixed on the placement plate 21. A servo motor 202 is also provided below the placement plate 21, and the output end is connected to the conveyor belt 201 through a pulley to drive the conveyor belt 201 to rotate.

[0049] Each wire package placement component 203 includes a connecting plate, a fixing block and a wire package fixing shaft. Figure 4 As shown, the bottom end of the connecting plate is fixedly connected to the conveyor belt 201 through a fixing block, and the top end of the connecting plate is fixedly connected to the wire package fixing shaft. In this embodiment, six wire package placement components 203 are sequentially arranged on the conveyor belt 201.

[0050] A photoelectric sensor 204 is provided above one end of the placement plate 21 for detecting whether there is a wire bundle on the wire bundle placement component 203. When there is no wire bundle on the wire bundle placement component 203, the photoelectric sensor 204 sends a signal to the controller 8. The controller 8 controls the servo motor 202 to start. The servo motor 202 drives the conveyor belt 201 to transfer the next wire bundle placement component 203 with a wire bundle to the position of the photoelectric sensor 204, so that the power maintenance personnel can easily take the wire bundle.

[0051] 6. Working Process

[0052] When using this embodiment, first install the appropriate main test equipment 6 and auxiliary test equipment 7 according to the power test to be performed, and adjust the second support plate 2 and the third support plate 3 to a suitable height through the lifting assembly; after transporting the device to the site, release the cable through the cable roller drive assembly 15, and then control the main test equipment 6 and the auxiliary test equipment 7 through the controller 8 to complete the power test with the cooperation of the cable. After the cable on the cable roller 14 is used up, first twist the threaded limit rod 194, the threaded limit rod 194 is separated from the damping belt on the first support plate 1, and then the fixing sleeve 17 is separated from the special-shaped shaft 152; then move the support plate 18 to make the drive motor 151 and the special-shaped shaft 152 dislocated and separated, so as to replace the cable roller 14 on the special-shaped shaft 152.

[0053] It should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An electric test vehicle, characterized in that: It includes a first support plate, a second support plate and a third support plate arranged in sequence from bottom to top; a first lifting assembly for supporting the second support plate and controlling the lifting of the second support plate is fixedly arranged between the first support plate and the second support plate, and a second lifting assembly for supporting the third support plate and controlling the lifting of the third support plate is fixedly arranged between the second support plate and the third support plate; wherein a universal wheel is fixedly arranged at each of the four ends of the lower surface of the first support plate; The first support plate is fixedly provided with a main test device, a cable roller and a cable roller driving assembly, and the cable roller and the cable roller driving assembly are detachably arranged on one side of the main test device; the third support plate is fixedly provided with a controller; the controller is respectively connected to the main test device and the auxiliary test device by means of electrical connection; It also includes an insulating component fixedly mounted on the first support plate, wherein the insulating component is any one of the following structures: a. A first insulating baffle and a second insulating baffle respectively fixed on both sides of the main test equipment on the first support plate; b. A first insulating baffle and a second insulating baffle are respectively fixed on both sides of the main test equipment on the first support plate, and two movable plates are fixed on the first insulating baffle and the second insulating baffle through slots at the top ends of the first insulating baffle and the second insulating baffle, and the bottom ends of the movable plates are fixedly connected to the bottom of the slots through compression springs; At least one placement plate is fixedly arranged on the side opposite to the first insulating baffle and the second insulating baffle, and each placement plate is provided with a wire package placement component; The cable roller driving assembly comprises a driving component fixedly mounted on the first support plate through a supporting plate and a special-shaped shaft having one end fixedly connected to the output end of the driving component; the other end of the special-shaped shaft is movably connected to the second insulating baffle through a bearing; The driving component and the special-shaped shaft are fixedly connected through a telescopic rod and a fixed sleeve; one end of the telescopic rod is movably connected to the output end of the driving component, and the other end of the telescopic rod is fixedly connected to the fixed sleeve; the fixed sleeve is fixed to the support plate through a return spring; A cable roller is sleeved on the special-shaped shaft, and an annular baffle is fixedly arranged at one end of the special-shaped shaft connected to the second insulating baffle, and the annular baffle is located between the cable roller and the second insulating baffle.

2. The electric power test vehicle according to claim 1, characterized in that: The wire package placement assembly includes a conveyor belt fixed on a placement plate and at least one wire package placement component fixed on the upper surface of the conveyor belt; each wire package placement component includes a connecting plate, a fixing block and a wire package fixing shaft, the bottom end of the connecting plate is fixedly connected to the conveyor belt through the fixing block, and the top end of the connecting plate is fixedly connected to the wire package fixing shaft.

3. The electric power test vehicle according to claim 2, characterized in that: The support plate is slidably connected to the first support plate through the bottom plate; a limiting sliding block is fixedly provided on the lower surface of the bottom plate, and the limiting sliding block is located in the limiting sliding groove on the upper surface of the first support plate.

4. The electric power test vehicle according to claim 3, characterized in that: Ball grooves are provided on both sides of the lower surface of the base plate, and a plurality of balls are provided in the ball grooves and fit with the upper surface of the first support plate; a threaded through groove is also provided on the base plate, and a threaded limiting rod is connected through the threaded through groove, and a damping belt adapted to the threaded limiting rod is provided on the upper surface of the first support plate.

5. The electric test vehicle according to any one of claims 1 to 4, characterized in that: A guide rod is fixedly arranged at four ends of the upper surface of the first support plate. The guide rod passes through the second support plate and the third support plate in sequence and extends to the top of the third support plate.

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