Track trolley for cable partial discharge test

Abstract

The utility model relates to a small rail car for a cable partial discharge test. The small rail car comprises a car body, a control box is installed at one end of the car body, a driving motor is installed in the control box, rail wheels are installed at the bottom of the car body, a rolling shaft is installed on the car body, and the two ends of the rolling shaft are supported through bearing seats. The utility model solves the problem that the rolling shaft connecting bearing of the original small rail car protrudes and easily scratches the cable, and reduces the reject ratio of products.

Description

Technical Field

[0001] The present application relates to the field of cable technology, and in particular to a rail trolley for cable partial discharge testing. Background Art

[0002] After the cable is manufactured, it needs to be tested for partial discharge. The original larger-sized cable reel cannot be tested on the rail trolley and needs to be placed on the floor of the partial discharge room for testing. In this way, the cable reel will damage the floor of the partial discharge room and the track. In addition, the original rail trolley roller consists of a two-section structure, and the roller connection bearing protrudes, which is easy to scratch the cable. Customers do not accept the repaired cable, which reduces customer satisfaction. In addition, the existing rail car can only test a single reel, and the test efficiency is low. Utility Model Content

[0003] The purpose of the embodiments of the present application is to provide a rail trolley for cable partial discharge testing, to solve the problem that the roller connection bearings of the original rail trolley protrude and easily scratch the cable, and to reduce the product defect rate.

[0004] To achieve the above objectives, this application provides the following technical solutions:

[0005] An embodiment of the present application provides a rail trolley for cable partial discharge testing, comprising a vehicle body, a control box mounted at one end of the vehicle body, a drive motor mounted in the control box, rail wheels mounted at the bottom of the vehicle body, rollers mounted on the vehicle body, and both ends of the rollers supported by bearing seats.

[0006] Two rollers are provided, and a vehicle frame is provided below the two rollers. The vehicle frame and the vehicle body are an integrated structure.

[0007] Four drive motors are provided, and one end of each roller close to the control box is connected to a drive motor.

[0008] There are four track wheels, and each roller is provided with a track wheel at both ends below the vehicle frame. The two track wheels close to the control box are respectively connected to a driving motor.

[0009] The bearing seat adopts SN315 bearing seat.

[0010] An insulating layer is provided at the end of the roller, and the roller is in insulating contact with the bearing seat.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] This solves the problem of ground interference affecting partial discharge tests on existing track trolleys. It also solves the problem of protruding bearings on existing track trolley rollers easily scratching cables, reducing product defect rates. It also enables the track trolley to carry two reels of semi-finished wire cores for simultaneous testing, greatly improving test efficiency. This utility model features a novel design, simple structure, and ease of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a side schematic diagram of the utility model as a whole;

[0015] Figure 2 It is a schematic top view of the entire utility model. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0017] The terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0018] The terms "first," "second," etc. are only used to distinguish one entity or operation from another entity or operation, and are not to be understood as indicating or implying relative importance, nor are they to be understood as requiring or implying any actual relationship or order between these entities or operations.

[0019] See also Figure 1 and Figure 2 In this embodiment, a rail trolley for cable partial discharge testing includes a car body 1, a control box 2 is installed at one end of the car body 1, a drive motor 3 is installed in the control box 2, a track wheel 4 is installed at the bottom of the car body 1, and a roller 5 is installed on the car body 1. Both ends of the roller 5 are supported by bearing seats 6. The roller 5 adopts a Ф150mm roller, and the track wheel 4 adopts a Ф250mm track wheel.

[0020] Two rollers 5 are provided, and a vehicle frame 7 is provided below the two rollers 5 . The vehicle frame 7 and the vehicle body 1 are an integrated structure.

[0021] Four drive motors 3 are provided, and one end of each roller 5 close to the control box 2 is connected to a drive motor 3 .

[0022] There are four rail wheels 4 , and each roller 5 is provided with a rail wheel 4 at both ends below the vehicle frame 7 , and the two rail wheels 4 close to the control box 2 are connected to a driving motor 3 respectively.

[0023] The bearing seat 6 adopts SN315 bearing seat.

[0024] An insulating layer is provided at the end of the roller 5 , and the roller 5 is insulated from and in contact with the bearing seat 6 .

[0025] There are 4 motors, each with a power of 1.5KW, which can meet the requirements of left and right rotation of the roller and forward and backward movement of the track trolley; there are 4 bearing seats, the bearing seat model is SN315, fixed at both ends of each roller to facilitate left and right rotation of the roller; the power cord and operating handle are the power cord and operating handle led out from the motor, and the buttons on the operating handle are left turn, right turn, forward and backward respectively, and the power cord is 380V.

[0026] The total length of the vehicle body is 4.55m; it uses a whole rotating roller with a length of 3.6m. No splicing is allowed in the middle, there is no connecting bearing, and the roller length is extended by about 2 meters; the roller diameter is increased from the original Ф120mm to Ф150mm.

[0027] The rail car has a track gauge of 143.6cm, a load capacity of 20 tons, and a conventional 380V power cord. It can carry 1.5m-3.2m cable reels for left and right rotation and forward and backward movement.

[0028] There are 4 motors for rotating and traveling the rail trolley, all of which use 1.5KW motors and use dual motors.

[0029] The rail trolley rollers are insulated from the ground and other non-roller parts of the rail trolley.

[0030] The rail car is blue overall.

[0031] Effect after designing and manufacturing the rail trolley:

[0032] (1) The test can be carried out on a track trolley to avoid damage to the floor and track of the partial discharge room by the disc;

[0033] (2) It can avoid the phenomenon of bearings scratching cables and improve customer satisfaction;

[0034] (3) The railcar can simultaneously carry two reels of semi-finished wire cores or finished cables with a width of no more than 1.6 meters for testing. The efficiency of semi-finished wire core testing has increased by 40%, and the efficiency of finished cable testing has increased by 20%.

[0035] During operation, first hang the cable or semi-finished wire core to be tested on the roller of the rail trolley, press the button on the operating handle, and rotate the roller to rotate the cable left and right, adjust it to the appropriate position for stripping the cable end; after the end is processed, press the button on the operating handle to move the rail trolley forward and backward, park it at the appropriate position in the partial discharge room, and then conduct the partial discharge test according to the partial discharge test operating procedures.

[0036] The above description is merely an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, various modifications and variations of the present application are possible. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A rail trolley for cable partial discharge testing, characterized in that: The vehicle comprises a vehicle body (1), a control box (2) is installed at one end of the vehicle body (1), a driving motor (3) is installed in the control box (2), a track wheel (4) is installed at the bottom of the vehicle body (1), a roller (5) is installed on the vehicle body (1), and both ends of the roller (5) are supported by bearing seats (6); Two rollers (5) are provided, and a vehicle frame (7) is provided below the two rollers (5). The vehicle frame (7) and the vehicle body (1) are an integrated structure.

2. A rail trolley for cable partial discharge testing according to claim 1, characterized in that: Four drive motors (3) are provided, and one end of each roller (5) close to the control box (2) is connected to a drive motor (3).

3. A cable partial discharge test rail trolley according to claim 1, characterized in that: Four rail wheels (4) are provided, and a rail wheel (4) is provided at both ends below the vehicle frame (7) of each roller (5), and the two rail wheels (4) close to the control box (2) are respectively connected to a drive motor (3).

4. A cable partial discharge test rail trolley according to any one of claims 1 to 3, characterized in that: The bearing seat (6) adopts an SN315 bearing seat.

5. A rail trolley for cable partial discharge testing according to claim 4, characterized in that: An insulating layer is provided at the end of the roller (5), and the roller (5) is in insulating contact with the bearing seat (6).

Images