Truck for pole detection

Abstract

The utility model belongs to the field of electrical equipment manufacturing and detection equipment, and particularly relates to a tool truck for pole detection, which comprises a trolley and a test tool, the test tool is mounted on the trolley, the test tool consists of a cross beam welded in a tool shell and a plurality of groups of combining mechanisms welded on the cross beam, and the cross beam is connected with the tool shell. A plurality of groups of separating and combining mechanisms are welded on the cross beam, each separating and combining mechanism is formed by welding two vertically arranged guide plates and a limiting plate, the upper ends of the two guide plates are welded and fixed with the cross beam, the lower ends of the two guide plates are welded and fixed with the limiting plate, and an adapter plate is arranged on the sides, close to each other, of the two guide plates. When in use, based on a single-station rigid clamping structure, in cooperation with a three-state switching mechanism driven by a handle, rapid switching of non-working / closing / opening states of the pole is realized, one-time clamping is realized through the axial positioning bolt and the anti-loosening clamping terminal to complete a full-item test, and the disassembly and assembly time loss caused by traditional multi-station circulation is eliminated.

Description

Tooling cart for pole testing Technical Field

[0001] This utility model belongs to the field of power equipment manufacturing and testing equipment, specifically, it relates to a tooling vehicle for pole testing. Background Technology

[0002] In the field of power equipment manufacturing and testing, poles are core components of equipment such as circuit breakers and switchgear. The testing of their performance parameters (such as insulation strength, circuit resistance, and partial discharge) directly affects the safety and reliability of the equipment. Traditional pole testing methods suffer from the following technical limitations:

[0003] 1. The testing process is fragmented and inefficient: individual tests such as accuracy, withstand voltage, and loop resistance need to be performed at different workstations or on different equipment. Frequent disassembly and assembly leads to low efficiency, and multiple assembly processes are prone to introducing human error.

[0004] 2. Limitations of environmental simulation: Conventional testing devices cannot realistically simulate the mechanical working conditions of finished circuit breakers (such as contact closing / opening states), resulting in deviations between test results and actual operating conditions.

[0005] 3. Insufficient equipment mobility and compatibility: The testing equipment is fixed in place, and the signal cable connections are complicated, making it difficult to flexibly adapt to different testing instruments, which increases the workload and time cost for operators. Summary of the Invention

[0006] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a tooling vehicle for pole testing.

[0007] According to the present invention, a tooling cart for pole testing includes a trolley and a testing fixture. The testing fixture is mounted on the trolley and consists of a crossbeam welded inside the fixture housing and a multi-group assembly mechanism welded to the crossbeam. The assembly mechanism is welded to the crossbeam and consists of two vertically arranged guide plates and a limiting plate welded together. The upper ends of the two guide plates are welded and fixed to the crossbeam, and the lower ends of the two guide plates are welded and fixed to the limiting plate. A transition plate is provided on one side of the two guide plates that are close to each other. The transition plate is located inside the assembly mechanism and moves through the crossbeam. The transition plate and the crossbeam are correspondingly arranged to slide. An eccentric wheel is provided on the other side of the two guide plates that are close to each other.

[0008] In a preferred embodiment: an insulating square tube is provided at each of the four upper corners of the trolley. The four insulating square tubes are divided into two groups, left and right. The upper and lower ends of the two insulating square tubes in the same group are connected to the upper fixed seat and the lower fixed seat, respectively.

[0009] In a preferred embodiment: both upper fixing seats are fixed with a support plate on one side close to each other, and the test fixture is fixedly installed between the two support plates.

[0010] In a preferred embodiment: the tooling housing has a Z-shaped structure.

[0011] In a preferred embodiment: a crossbeam is fixedly installed on the bottom inner side of the tooling housing.

[0012] In a preferred embodiment: a long waist hole is provided in the middle of both guide plates.

[0013] In a preferred embodiment, the adapter plate is H-shaped.

[0014] In a preferred embodiment: the two eccentric wheels are provided with the same set of handles on the other side of the guide plate.

[0015] In a preferred embodiment: an adjusting bolt is provided between the two ends of the top of the adapter plate, and the adjusting bolt is connected and fixed to the adapter plate by a pin.

[0016] In a preferred embodiment: a square-headed drive shaft is provided between the two ends of the bottom of the adapter plate, and the two ends of the square-headed drive shaft pass through the long waist hole of the guide plate, the square hole of the eccentric wheel and the square hole of the handle.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. When this utility model is used, it is based on a single-station rigid clamping structure and a three-state switching mechanism driven by a handle to realize the rapid switching of the pole non-working / closing / opening states. The axial positioning bolts and anti-loosening clamping terminals enable the completion of all tests in one clamping, eliminating the disassembly and assembly time loss caused by traditional multi-station transfer.

[0019] 2. When this utility model is used, it adopts a rigid linkage design of eccentric wheel-transfer plate transmission system and precision pin slot. The travel of the insulating pull rod is precisely controlled by rotating the handle ±90° to control the contact closing / opening state, accurately simulating the circuit breaker working condition. This makes the withstand voltage test and circuit resistance measurement values ​​closer to the actual operating data than traditional methods.

[0020] 3. When using this utility model, the pole signal line is connected to a standardized aviation socket through an anti-loosening clamp terminal, and the plug of the testing equipment can be directly connected without repeated wiring, which significantly simplifies the signal interaction process. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 is a schematic diagram of the structure of this utility model;

[0023] Figure 2 is a schematic diagram of the test fixture of this utility model;

[0024] Figure 3 is a schematic diagram of the structure of the tooling vehicle for pole testing of this utility model;

[0025] Figure 4 is a structural schematic diagram of the pole closing handle state of this utility model;

[0026] Figure 5 is a structural schematic diagram of the pole trip handle state of this utility model;

[0027] In the picture:

[0028]

[0029] Detailed Implementation

[0030] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0031] As shown in Figures 1-5, this utility model discloses a tooling cart for pole testing, including a trolley 101 and a testing fixture 201. Insulating square tubes 102 are provided at the four corners of the upper part of the trolley 101. The four insulating square tubes 102 are divided into two groups, left and right. The upper and lower ends of the two insulating square tubes 102 in the same group are connected to the upper fixed seat and the lower fixed seat, respectively. The two upper fixed seats are fixed with a support plate 103 on one side close to each other. The testing fixture 201 is fixedly installed between the two support plates 103.

[0032] The test fixture 201 consists of a crossbeam 202 welded inside the fixture housing and a multi-unit assembly / disassembly mechanism 204 welded to the crossbeam 202. The fixture housing has a U-shaped structure. The crossbeam 202 is fixedly installed on the bottom inner side of the fixture housing. The multi-unit assembly / disassembly mechanism 204 is welded onto the crossbeam 202. The assembly / disassembly mechanism 204 is assembled by welding two vertically arranged guide plates and limiting plates. Each guide plate has a long slot in the middle. The upper ends of the two guide plates are welded and fixed to the crossbeam 202, and the lower ends of the two guide plates are welded and fixed to the limiting plates. A transition plate 207 is provided on the side of the two guide plates that are close to each other. The transition plate 207 is set on the assembly / disassembly mechanism 204. Inside, the adapter plate 207 is H-shaped and moves through the crossbeam 202. The adapter plate 207 and the crossbeam 202 are correspondingly set to slide. On the other side of the two guide plates that are close to each other, there is an eccentric wheel 206. On the other side of the two eccentric wheels 206 that are close to the guide plates, there is the same set of handles 203. An adjusting bolt 205 is set between the two ends of the top of the adapter plate 207. The adjusting bolt 205 is connected and fixed to the adapter plate 207 by a pin. A square-headed drive shaft is set between the two ends of the bottom of the adapter plate 207. The two ends of the square-headed drive shaft pass through the long waist hole of the guide plate, the square hole of the eccentric wheel 206 and the square hole of the handle 203.

[0033] Working principle

[0034] A set of (A / B / C three-phase) poles are fixed to the base of the test fixture 201 with bolts to ensure the axial positioning accuracy of the poles; the adjusting bolt 205 is screwed into the end of the pole insulating pull rod, and its other end is inserted into the precision pin slot on the upper part of the adapter plate 207 to form a rigid linkage mechanism. The square-head drive shaft is operated by the handle 203 to drive the eccentric wheel 206 to rotate synchronously with the adapter plate 207, so as to achieve precise displacement control of the insulating pull rod; the pole signal line is connected to the standardized aviation socket through the anti-loosening clamp terminal, and the plug of the test equipment can be directly connected without repeated wiring, which significantly simplifies the signal interaction process;

[0035] The test state switching and function implementation are as follows:

[0036] Non-working state (initial position)

[0037] When handle 203 is not rotated, eccentric wheel 206 and adapter plate 207 are at mechanical zero point, and the insulating pull rod has no displacement. At this time, the following can be performed:

[0038] Pole column accuracy inspection: Based on the rigid fixed structure of the tooling, vibration interference is eliminated, and the coaxiality and assembly tolerance of the contacts are measured;

[0039] Static withstand voltage and partial discharge tests: verifying the insulation strength and partial discharge characteristics of the electrode under no mechanical stress; closing state test (contacts pressed tightly for conduction).

[0040] Rotate handle 203 clockwise by 90°. The square-head drive shaft, in conjunction with the eccentric wheel 206, pushes the adapter plate 207 upward, causing the insulating pull rod to press against the vacuum interrupter contacts, simulating the circuit breaker's closing and conducting operation. At this time, the following can be performed:

[0041] Loop resistance test: Based on reliable contact of the contacts, the resistance value of the conductive loop is measured;

[0042] Dynamic withstand voltage and partial discharge test: Evaluating the impact of mechanical deformation of the insulation material on withstand voltage performance under contact compression; Opening state test (contact separation insulation verification).

[0043] Rotate handle 203 counterclockwise 90°, eccentric wheel 206 drives adapter plate 207 to move down, pull the insulating rod to separate the contacts to the rated opening distance, simulating the circuit breaker opening state. At this time, the following can be performed:

[0044] Breaking withstand voltage and partial discharge test: Verify the insulation recovery capability and partial discharge suppression effect of the pole after contact separation;

[0045] Mechanical stroke calibration: The displacement of the adapter plate 207 is reversed to push the contact opening distance;

[0046] Through a single clamping and handle 203 control, it seamlessly switches between three states: non-working, closed, and open, covering the full-condition testing needs of the pole and solving the efficiency bottleneck of traditional multi-station operation; based on the eccentric wheel 206-adapter plate 207 transmission system, it accurately reproduces the contact closing pressure and opening distance, ensuring that the test data is highly consistent with the actual operation; the aviation socket integrated design is compatible with a variety of testing equipment and supports the "plug and test" mode, reducing equipment switching time costs.

[0047] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0048] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A j ig car for pole detection, characterized by, The device includes a trolley (101) and a testing fixture (201). The testing fixture (201) is mounted on the trolley (101). The testing fixture (201) consists of a crossbeam (202) welded inside the fixture housing and a multi-group assembly mechanism (204) welded to the crossbeam (202). The multi-group assembly mechanism (204) is welded to the crossbeam (202). The assembly mechanism (204) is assembled by welding two vertically arranged guide plates and limiting plates. The upper end of the plate is welded and fixed to the crossbeam (202), and the lower ends of the two guide plates are welded and fixed to the limiting plate. A transition plate (207) is provided on the side of the two guide plates that are close to each other. The transition plate (207) is located inside the splitting mechanism (204). The transition plate (207) moves through the crossbeam (202). The transition plate (207) and the crossbeam (202) are correspondingly set to slide. An eccentric wheel (206) is provided on the other side of the two guide plates that are close to each other.

2. The tooling vehicle for pole testing according to claim 1, characterized in that, Insulating square tubes (102) are provided at the four corners of the upper part of the trolley (101). The four insulating square tubes (102) are divided into two groups, left and right. The upper and lower ends of the two insulating square tubes (102) in the same group are connected to the upper fixed seat and the lower fixed seat respectively.

3. The jumbo for pole detection according to claim 1, wherein Both upper fixed seats are fixed with a support plate (103) on one side close to each other, and the test fixture (201) is fixedly installed between the two support plates (103).

4. The jumbo for pole detection according to claim 1, wherein The tooling housing has a Z-shaped structure.

5. The jib post detection tool cart of claim 4, wherein, A crossbeam (202) is fixedly installed on the bottom inner side of the tooling housing.

6. The tooling vehicle for pole testing according to claim 1, characterized in that, Both guide plates have a long waist hole in the middle.

7. The tooling vehicle for pole testing according to claim 1, characterized in that, The adapter plate (207) is H-shaped.

8. The tooling vehicle for pole testing according to claim 7, characterized in that, The two eccentric wheels (206) are provided with the same set of handles (203) on the other side of the guide plate.

9. The tooling vehicle for pole testing according to claim 8, characterized in that, Adjusting bolts (205) are provided between the two ends of the top of the adapter plate (207), and the adjusting bolts (205) are connected and fixed to the adapter plate (207) by means of pins.

10. The tooling vehicle for pole testing according to claim 9, characterized in that, A square-headed drive shaft is provided between the two ends of the bottom of the adapter plate (207). The two ends of the square-headed drive shaft pass through the long waist hole of the guide plate, the square hole of the eccentric wheel (206), and the square hole of the handle (203).

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