Fixing device for manufacturing T-shaped joint of transformer of motor train unit

By designing a fixing device for the T-joint of the EMU transformer, the problems of insecure cable fixing and poor forming in confined spaces were solved, achieving stable cable clamping and angle adjustment, and improving operational efficiency and product quality.

CN223858630UActive Publication Date: 2026-01-30CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
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Patent Information

Application Number
CN202520352797.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-01-30
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

In the manufacturing of rail vehicles, the production of transformer joints is hampered by limited operating space, making it difficult for multiple people to operate. This leads to problems such as insecure cable fixing, uneven cutting, and poor crimping of terminals, which affect the stable operation of the high-voltage system.

Method used

A device for manufacturing and fixing T-type joints of EMU transformers was designed, including cable fixing components, telescopic components and main fixing components. It utilizes structures such as nylon clamps, universal ball joints and rubber suction cups to achieve stable clamping of cables and adjustment of angle and height, adapting to operation in confined spaces.

Benefits of technology

It improves the working efficiency of cable joints, ensures that cables are firmly fixed and avoids displacement, meets the structural restrictions of high and low operating areas, and improves product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a motor train unit transformer T-shaped joint manufacturing and fixing device which comprises a cable fixing assembly, a nylon wire clamp is arranged at the upper end of the cable fixing assembly, and a supporting inner rod is arranged on the lower portion of the cable fixing assembly. The telescopic assembly is connected with a supporting inner rod of the cable fixing assembly, and the telescopic assembly is movably connected with the supporting inner rod to adjust the height of a nylon wire clamp at the upper end; the main body fixing assembly is adsorbed on the ground through a rubber suction cup so as to fix the device on the ground; the nylon wire clamp is movably connected with the supporting inner rod through the universal ball joint so that the angle of the nylon wire clamp can be adjusted through the universal ball joint. The device is small in size, light, easy to operate, convenient to use by operators, capable of improving the working efficiency of a cable joint, firm in cable fixing, free of displacement of the cable during operation, capable of guaranteeing the quality requirement of products, capable of adjusting the direction and the height and capable of meeting the limitation of high and low operation areas on the structure.
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Description

TECHNICAL FIELD

[0001] The utility model relates to rail vehicle manufacturing technical field especially relates to a motor train unit transformer T type joint making fixing device. BACKGROUND

[0002] At present, in the rail vehicle manufacturing industry, the reliability and safety of high-voltage system are the most important to ensure the stable operation of the vehicle, but the manufacturing quality of transformer joint determines the stable operation of the whole high-voltage system. In the past, when manufacturing transformer joint, due to the small operation space, it is not convenient for multiple people to operate, the manufacturing process is complicated, the link step requirement is higher, there will be problems such as cutting cable not in place, uneven shielding layer treatment, poor compression terminal forming, therefore, a device is needed to solve the above problems.

[0003] At the same time, due to the small space in the past operation, the cable cannot be fixed, only one employee can assist, hold the cable for fixing, and another employee can operate, two people need to exchange positions many times during operation, and the fixed direction of the cable also needs to be adjusted constantly to meet the operation requirements, the whole manufacturing process needs the tacit cooperation of two people to ensure the completion quality of high-voltage joint.

[0004] After careful study of the operation process in the prior art, the existing process has the following defects:

[0005] 1. The operation space is small, which is not convenient for the operator to operate. During the joint manufacturing process, the operator needs to cut, polish and paint the cable, which requires two people to frequently change positions, which is very easy to cause displacement of the internal parameters of the cable joint, and cannot meet the technical requirements.

[0006] 2. When the cable is fixed by the staff, it cannot be fixed firmly. When the cable is cut and other steps are performed, the operator needs to apply force to the cable, which can easily change the fixed position, so that the operator cannot apply force evenly and cannot process the cable to the best state.

[0007] 3. The compression terminal is not formed well. When the compression terminal is used, the weight of the equipment itself is large, so the operator needs to exert more force when compressing the terminal, and the cable core needs to be inserted into the terminal for multiple compression, so the auxiliary personnel must maintain a stable state, otherwise the terminal will be formed poorly.

[0008] Therefore, based on the above technical problems, the technical personnel in the field urgently need to develop a motor train unit transformer T type joint making fixing device. UTILITY MODEL CONTENT

[0009] The utility model discloses a motor train unit transformer T joint manufacturing fixing device, the device volume is smaller, light, simple operation, convenient for operator to use, can improve cable joint work efficiency, and the fixed cable is firm, and the cable will not produce displacement when operating, ensures the quality requirement of product, and can carry out direction and height adjustment, satisfies the restriction of structure to high and low operation area.

[0010] In order to realize above-mentioned purpose, the utility model provides following technical scheme:

[0011] A motor train unit transformer T joint manufacturing fixing device, the device includes:

[0012] Cable fixing assembly, the upper end of cable fixing assembly is provided with nylon wire clamp, and the nylon wire clamp is used to hold fixed cable, and the lower part of cable fixing assembly is support inner rod;

[0013] Telescopic component connected with the support inner rod of cable fixing assembly, the height of the nylon wire clamp of upper end is adjusted through the movable connection of telescopic component and support inner rod;And

[0014] Main body fixing component located at the bottom of device, the main body fixing component is adsorbed on the ground through rubber suction cup to fix the device on the ground;

[0015] The nylon wire clamp is movably connected with the support inner rod through universal ball joint, and the angle of the nylon wire clamp is adjusted through the universal ball joint.

[0016] Further, the nylon wire clamp includes:

[0017] Lower clamp body and upper clamp body;

[0018] One end of lower clamp body and upper clamp body is hinged through connecting bolt, and the other end of lower clamp body and upper clamp body is connected as a whole through tightening screw after being close to each other;

[0019] Cable is held and fixed between lower clamp body and upper clamp body.

[0020] Further, the universal ball seat of universal ball joint is connected with the support inner rod;

[0021] The telescopic component includes:

[0022] Support outer rod, the cavity is hollowly formed in the inside of support outer rod, and the support inner rod can be embedded and slidably connected in the cavity;And

[0023] Rotary jackscrew is arranged on one side of the upper part of support outer rod, and the rotary jackscrew passes through the support outer rod and abuts the side surface of support inner rod to keep the position of support inner rod.

[0024] Further, the main body fixing assembly comprises:

[0025] The rubber suction cup is located at the bottom;

[0026] The air pump is in communication with the internal space of the rubber suction cup, and a handle is integrated on the air pump, and a gas release valve in communication with the internal space of the rubber suction cup is arranged on one side of the air pump.

[0027] Further, the main body fixing assembly is integrated with the supporting outer rod through a connecting structure.

[0028] Further, the connecting structure is configured as a square structure, and a vertical channel matched with the supporting outer rod is formed in the vertical direction of the connecting structure, and a horizontal channel matched with the handle is formed in the horizontal direction of the connecting structure.

[0029] The handle is arranged in the horizontal channel, and the lower end of the supporting outer rod is arranged in the vertical channel.

[0030] The handle and the supporting outer rod are fixedly connected with the connecting structure through fasteners.

[0031] In the above technical solution, the motor train unit transformer T-shaped joint manufacturing fixing device provided by the utility model has the following beneficial effects:

[0032] The device is small in size, light in weight, simple in operation, convenient for operators to use, can improve the working efficiency of the cable joint, firmly fixes the cable, and ensures that the cable will not be displaced during operation, thereby ensuring the quality requirements of the product, and can adjust the direction and height to meet the structural restrictions of high and low operation areas. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the utility model, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0034] Figure 1 The structure schematic view of the motor train unit transformer T-shaped joint manufacturing fixing device disclosed by the utility model embodiment is shown in the figure.

[0035] Figure 2 The structure schematic view of the cable fixing assembly of the motor train unit transformer T-shaped joint manufacturing fixing device disclosed by the utility model embodiment is shown in the figure.

[0036] Figure 3The utility model discloses a structure schematic diagram of the telescopic subassembly of the T joint fixing device of the motor train unit transformer.

[0037] Figure 4 The utility model discloses a structure schematic diagram of the main body fixed subassembly of the T joint fixing device of the motor train unit transformer.

[0038] Figure 5 The utility model discloses a structure schematic diagram of the connecting structure of the T joint fixing device of the motor train unit transformer.

[0039] Mark explanation:

[0040] 1, cable fixed subassembly, 2, telescopic subassembly, 3, main body fixed subassembly, 4, connecting structure,

[0041] 101, lower clamp body, 102, upper clamp body, 103, tighten screw, 104, universal ball joint, 105, universal ball seat, 106, support inner rod,

[0042] 201, support outer rod, 202, rotary top screw,

[0043] 301, rubber suction cup, 302, air pump, 303, handle, 304, deflation valve,

[0044] 401, vertical channel, 402, horizontal channel. Specific implementation

[0045] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be introduced further in the following with the attached drawing.

[0046] Referring to Figures 1 to 5 As shown in the figure,

[0047] The utility model discloses a kind of T joint fixing device of motor train unit transformer, and the device includes:

[0048] Cable fixed subassembly 1, the upper end of cable fixed subassembly 1 is provided with nylon wire clamp, and nylon wire clamp is used to hold fixed cable, and the lower part of cable fixed subassembly 1 is support inner rod 106;

[0049] Telescopic subassembly 2 connected with the support inner rod 106 of cable fixed subassembly 1, telescopic subassembly 2 adjusts the height of the upper end nylon wire clamp by the movable connection with support inner rod 106, and

[0050] Main body fixed subassembly 3 located at the bottom of device, main body fixed subassembly 3 is adsorbed on ground by rubber suction cup 301, to be fixed on ground by device;

[0051] The nylon wire clamp is movably connected with the supporting inner rod 106 through the universal ball joint 104 to adjust the angle of the nylon wire clamp through the universal ball joint 104.

[0052] Specifically, the embodiment discloses a fixing device suitable for manufacturing a T-shaped joint of a motor train unit transformer, which mainly comprises a cable fixing assembly 1, a telescopic assembly 2 and a main body fixing assembly 3; wherein the cable fixing assembly 1 clamps and fixes the cable by means of the nylon wire clamp at the upper end, and the height of the nylon wire clamp can be adjusted by means of the cooperation of the telescopic assembly 2 and the supporting inner rod 106 of the cable fixing assembly 1, so as to adjust the height of the cable, and in order to facilitate operation, the angle of the nylon wire clamp is adjusted by means of the universal ball joint 104. The device of the embodiment is adsorbed to the ground by means of the rubber suction cup 301 of the main body fixing assembly 3 at the lower end, so as to achieve the purpose of supporting and positioning the whole device.

[0053] Preferably, the nylon wire clamp of the embodiment comprises a lower clamp body 101 and an upper clamp body 102.

[0054] One end of the lower clamp body 101 and the upper clamp body 102 is hinged by a connecting bolt, and the other end of the lower clamp body 101 and the upper clamp body 102 is connected into one body by means of the tightening screw 103 passing through the lower clamp body 101 and the upper clamp body 102 after being close to each other.

[0055] The cable is clamped and fixed between the lower clamp body 101 and the upper clamp body 102.

[0056] The embodiment further limits the structure of the nylon wire clamp, which comprises a lower clamp body 101 and an upper clamp body 102, one end of the lower clamp body 101 and the upper clamp body 102 is hinged, and the other end is a movable end. When clamping and fixing the cable, the upper clamp body 102 is turned over towards the lower clamp body 101 and is close to each other, and then the tightening screw 103 passing through the two is tightened to complete the connection of the upper clamp body 102 and the lower clamp body 101, at this time, the clamping and fixing of the cable are completed.

[0057] Preferably, the universal ball seat 105 of the universal ball joint 104 of the embodiment is connected with the supporting inner rod 106.

[0058] The telescopic assembly 2 comprises:

[0059] The supporting outer rod 201 is hollowly formed with a cavity inside, and the supporting inner rod 106 can be embedded and slidably connected in the cavity; and

[0060] The rotating top screw 202 is arranged on one side of the upper part of the supporting outer rod 201, passes through the supporting outer rod 201 and abuts against the side surface of the supporting inner rod 106 to keep the position of the supporting inner rod 106.

[0061] In order to realize the adjustment of the height of the cable, the embodiment designs the telescopic assembly 2, which mainly adjusts the height through the sliding connection of the supporting inner rod 106 and the supporting outer rod 201, and realizes the positioning and fixing through the abutment of the rotating top screw 202 and the side wall of the supporting inner rod 106, and the overall operation is convenient.

[0062] Preferably, the main body fixing assembly 3 of the embodiment includes a rubber suction cup 301 at the bottom; a gas pump 302 in communication with the internal space of the rubber suction cup 301, and the gas pump 302 is integrated with a handle 303, and the side of the gas pump 302 has a gas release valve in communication with the internal space of the rubber suction cup 301.

[0063] The embodiment further limits the structure of the main body fixing assembly 3, which includes the rubber suction cup 301, and the vacuum assembly composed of the gas pump 302, the gas release valve 304 and the handle 303 and the auxiliary structure, which controls the vacuum degree in the rubber suction cup 301 when the rubber suction cup 301 is adsorbed on the ground through the gas pump 302, realizes the adsorption function of the rubber suction cup 301, and the gas release valve 304 is arranged on the gas circuit, and the adsorption of the rubber suction cup 301 can be released through the gas release. The handle 303 is the main body of the vacuum assembly.

[0064] In addition, based on the structure of the telescopic assembly 2 and the main body fixing assembly 3, in order to realize the connection of the two, the main body fixing assembly 3 of the embodiment is connected with the supporting outer rod 201 through the connecting structure 4.

[0065] Preferably, the connecting structure 4 of the embodiment is configured as a square structure, and the connecting structure 4 is provided with a vertical channel 401 matched with the supporting outer rod 201 along the vertical direction thereof, and the connecting structure 4 is provided with a horizontal channel 402 matched with the handle 303 along the horizontal direction thereof;

[0066] The handle 303 is arranged in the horizontal channel 402, and the lower end of the supporting outer rod 201 is arranged in the vertical channel 401;

[0067] The handle 303 and the supporting outer rod 201 are fixedly connected with the connecting structure 4 through fasteners.

[0068] When operating, first, press the gas pump 302 to make the rubber suction cup 301 adsorb on the ground, and fix the whole device on the ground at the position of the transformer T joint manufacturing area. Then adjust the supporting inner rod to the appropriate height, and tighten the rotating top screw 202 to fix and maintain the height.

[0069] Secondly, open the nylon wire clamp to place the cable in the clamp, and then tighten the screw 103 to complete the clamping and fixing of the cable.

[0070] Finally, after the operation is completed, open the gas release valve 304 to release the pressure.

[0071] In the above technical scheme, the utility model provides a kind of EMU transformer T joint manufacturing fixing device, with the following beneficial effects:

[0072] The device is small in size, portable, easy to operate, convenient for operators to use, can improve the working efficiency of cable joint, firmly fix the cable, the cable will not displace during operation, ensure the quality requirements of product, and can adjust direction and height, meet the restriction of structure for high-low operation area.

[0073] The above only describes certain exemplary embodiments of the utility model by way of illustration, without doubt, for ordinary skilled person in the art, under the condition that without deviating from the spirit and scope of the utility model, the described embodiments can be modified in various different ways. Therefore, the above drawings and description are illustrative in nature, and should not be understood as limiting the scope of protection claimed by the utility model.

Claims

1. A fixing device for T-joint of EMU transformer, characterized in that, The device comprises: a cable fixing assembly (1) provided with a nylon clamp at its upper end, which is used to clamp and fix the cable, and the lower part of the cable fixing assembly (1) is a supporting inner rod (106); a telescopic assembly (2) connected with the supporting inner rod (106) of the cable fixing assembly (1), which adjusts the height of the nylon clamp at the upper end through the movable connection with the supporting inner rod (106); and a main body fixing assembly (3) located at the bottom of the device, which is adsorbed on the ground by a rubber suction cup (301) to fix the device on the ground. The nylon clamp is movably connected with the supporting inner rod (106) through a universal ball joint (104) to adjust the angle of the nylon clamp through the universal ball joint (104).

2. The EMU transformer T-joint fabrication fixture of claim 1, wherein, The nylon clamp comprises: a lower clamp body (101) and an upper clamp body (102); One end of the lower clamp body (101) and the upper clamp body (102) is hinged through a connecting bolt, and the other end of the lower clamp body (101) and the upper clamp body (102) is connected into one body through a tightening screw (103) passing through the lower clamp body (101) and the upper clamp body (102) after being close to each other; The cable is clamped and fixed between the lower clamp body (101) and the upper clamp body (102).

3. The EMU transformer T-joint fabrication fixture of claim 2, wherein, The universal ball seat (105) of the universal ball joint (104) is connected with the supporting inner rod (106); The telescopic assembly (2) comprises: a supporting outer rod (201) which is hollow inside to form a cavity, and the supporting inner rod (106) can be embedded and slidably connected in the cavity; and a rotating top screw (202) provided on one side of the upper part of the supporting outer rod (201), which penetrates the supporting outer rod (201) and abuts against the side surface of the supporting inner rod (106) to keep the position of the supporting inner rod (106).

4. The EMU transformer T-joint fabrication fixture of claim 3, wherein, The main body fixing assembly (3) comprises: the rubber suction cup (301) at the bottom; a gas pump (302) in communication with the internal space of the rubber suction cup (301), and a handle (303) is integrated on the gas pump (302), and a gas release valve (304) in communication with the internal space of the rubber suction cup (301) is provided on one side of the gas pump (302).

5. The EMU transformer T-joint fabrication fixture of claim 4, wherein, The main body fixing assembly (3) is connected with the supporting outer rod (201) as a whole through a connecting structure (4).

6. The EMU transformer T-joint fabrication fixture of claim 5, wherein, The connecting structure (4) is configured as a square structure, and a vertical channel (401) matching the supporting outer rod (201) is formed in the vertical direction of the connecting structure (4), and a horizontal channel (402) matching the handle (303) is formed in the horizontal direction of the connecting structure (4); The handle (303) is arranged in the horizontal channel (402), and the lower end of the supporting outer rod (201) is arranged in the vertical channel (401); The handle (303) and the supporting outer rod (201) are fixedly connected with the connecting structure (4) through fasteners.