Railway car tank mounting base assembly apparatus

By using the railcar fuel tank mounting bracket assembly device, precise positioning and accurate positioning of welding points were achieved, solving the problem of unreliable assembly accuracy, improving production efficiency and reducing costs.

CN224347764UActive Publication Date: 2026-06-12CRRC CHANGCHUN RAILWAY VEHICLES CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
Filing Date
2025-06-12
Publication Date
2026-06-12

AI Technical Summary

Technical Problem

The existing method for assembling fuel tank mounting brackets for rail passenger cars has problems such as inability to guarantee assembly accuracy, high rework rate, low production efficiency, high labor intensity for operators, and high production cost.

Method used

The rail passenger car oil tank mounting bracket assembly includes a base platform, a plate clamping device, a key pin, a plate clamping device height adjustment screw, a double support positioning device, a support positioning device, and a locking device. Through the combined use of these components, precise positioning and accurate positioning of the welding points are achieved.

Benefits of technology

It ensures assembly accuracy, zero rework rate, increases production efficiency by 5 to 10 times, reduces operator labor intensity and production costs, and improves production quality and efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224347764U_ABST
    Figure CN224347764U_ABST
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Abstract

This utility model provides a rail passenger car fuel tank mounting bracket assembly device, comprising a base platform, a plate clamping device, a key pin, several plate clamping device height adjustment screws, a double support positioning device, a plate clamping device handle, a support positioning device, a locking device, and a main support positioning device. The main support positioning device is fixed to the base platform and is arc-shaped with recessed platforms on both end faces. The radius of the recessed platforms is the same as that of the left and right plates of the fuel tank mounting bracket. This assembly device replaces manual marking and repeated tool-assisted assembly of the rail passenger car fuel tank mounting bracket, ensuring the stability and reliability of the fuel tank mounting bracket assembly, guaranteeing assembly accuracy each time, zero rework rate, increasing production efficiency by 5-10 times, reducing operator labor intensity, and saving labor and production costs. This tooling has a simple structure, wide applicability, and convenient operation, reducing the difficulty of workpiece assembly and ensuring production quality.
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Description

Technical Field

[0001] This utility model relates to the field of rail passenger vehicle equipment installation, and in particular to a rail passenger vehicle fuel tank mounting bracket assembly device. Background Technology

[0002] like Figure 1 As shown, the rail passenger car oil tank mounting base consists of left plate 1-1, plate 1-2, right plate 1-3, double support 1-4, and support 1-5. The relative positions of the components are difficult to determine, which makes the assembly process difficult.

[0003] The current assembly method requires the operator to use a right-angle tool to assemble the left plate 1-1 and right plate 1-3 perpendicularly to the plate 1-2 according to specific dimensions before assembly. Then, lines are drawn on the end face of the plate 1-2 according to the drawing dimensions to assemble the double supports 1-4 and supports 1-5. After assembly, the position and angle of each component are remeasured to confirm whether the dimensions in each direction meet the drawing requirements. Since the assembly process requires no error, manual assembly in batch production often leads to errors in the operator's measurement and marking, resulting in the final assembly accuracy being unreliable and the rework rate being extremely high. This increases production costs, increases the operator's labor intensity, and reduces production efficiency, seriously restricting production. Utility Model Content

[0004] The purpose of this utility model is to solve the technical problems of the existing manual assembly method for fuel tank mounting brackets in rail passenger cars, which results in unreliable assembly accuracy, extremely high rework rate, and low production efficiency.

[0005] To achieve the above objectives, this utility model provides a rail passenger car fuel tank mounting bracket assembly device.

[0006] The device comprises a base platform, a plate clamping device, a key pin, several plate clamping device height adjustment screws, a double support positioning device, a plate clamping device handle, a support positioning device, a locking device, and a main support positioning device. The main support positioning device is fixed to the base platform and is arc-shaped with recessed platforms on both ends. The radius of the recessed platforms is the same as that of the left and right plates of the fuel tank mounting base. The base platform has fixing devices on both radial sides of the main support positioning device, connected to the plate clamping device via key pins. The plate clamping device can move axially according to the key pins. Locking devices are provided on both sides of the main support positioning device. The several plate clamping device height adjustment screws, the double support positioning device, the plate clamping device handle, and the support positioning device are all mounted on the plate clamping device.

[0007] Furthermore, there are two fixing devices, each including two parallel fixing blocks, each fixing block having a through hole, and both ends of the plate clamping device can be riveted to the plate clamping device by key pins.

[0008] Further, the double support positioning device is in the shape of an arch bridge. Two round holes are provided on the end face of the double support positioning device on one side of the main support positioning device. After the two round holes overlap with the double support, each component is welded and fixed.

[0009] Further, the support positioning device is in the shape of a "C". A round hole overlapping with the round hole on the end face of the support is provided on the end face of the support positioning device on one side of the main support positioning device. After overlapping, the support and the right plate are welded and fixed.

[0010] Further, the inner ring surface of the disc pressing device corresponds to the outer ring surface of the main support positioning device. The plurality of height adjustment screws of the disc pressing device are evenly pressed on the upper end surface of the disc, and the disc is mutually adhered to the main support positioning device.

[0011] This alignment device replaces the manual scribing of the fuel tank mounting seat of the rail vehicle and the repeated alignment with the aid of tools, ensuring the stability and reliability during the alignment of the fuel tank mounting seat, ensuring the alignment accuracy each time, with a zero rework rate, increasing the production efficiency by 5 to 10 times, reducing the labor intensity of the operator, and saving labor and production costs; this tooling has a simple structure, a wide application range, is easy to operate, reduces the operation difficulty of workpiece alignment, and ensures the production quality. Description of the Drawings

[0012] Figure 1 is a schematic diagram of the workpiece of the fuel tank mounting seat of the rail vehicle;

[0013] Figure 2 is an exploded view of the alignment device for the fuel tank mounting seat of the present utility model and the fuel tank mounting seat;

[0014] Figure 3 is an application schematic diagram of the alignment device for the fuel tank mounting seat of the present utility model.

[0015] In the figure: 1. Fuel tank mounting seat; 1-1. Left plate; 1-2. Disc; 1-3. Right plate; 1-4. Double support; 1-5. Support; 2. Alignment device; 2-1. Base platform; 2-2. Disc pressing device; 2-3. Key pin; 2-4. Height adjustment screw of the disc pressing device; 2-5. Double support positioning device; 2-6. Handle of the disc pressing device; 2-7. Support positioning device; 2-8. Locking device; 2-9. Main support positioning device. Detailed Embodiment

[0016] The following further describes the present utility model in detail with reference to the drawings.

[0017] As Figure 2 and Figure 3As shown in the figure, the assembling device for the fuel tank mounting seat of the rail passenger car includes a base platform 2-1, a disk plate pressing device 2-2, a key pin 2-3, a height adjusting screw rod 2-4 for the disk plate pressing device, a double support positioning device 2-5, a handle 2-6 for the disk plate pressing device, a support positioning device 2-7, a locking device 2-8 and a main support positioning device 2-9. The main support positioning device 2-9 is fixed on the base platform 2-1. The main support positioning device 2-9 is arc-shaped and concave platforms are provided on both end faces. The radius of the concave platforms is the same as that of the left plate 1-1 and the right plate 1-3 of the fuel tank mounting seat 1. Fixing devices which are connected with the disk plate pressing device 2-2 through the key pin 2-3 are arranged on both radial sides of the base platform 2-1 with respect to the main support positioning device 2-9. The disk plate pressing device 2-2 can make axial movement according to the key pin 2-3. Locking devices 2-8 are arranged on both sides of the main support positioning device 2-9. The inner ring surface of the disk plate pressing device 2-2 corresponds to the outer ring surface of the main support positioning device 2-9. A plurality of height adjusting screw rods 2-4 for the disk plate pressing device are evenly pressed on the upper end surface of the disk plate 1-2 to make the disk plate 1-2 fit with the main support positioning device 2-9.

[0018] A plurality of height adjusting screw rods 2-4 for the disk plate pressing device, a double support positioning device 2-5, a handle 2-6 for the disk plate pressing device and a support positioning device 2-7 are all arranged on the disk plate pressing device 2-2.

[0019] There are two fixing devices in total. Each fixing device includes two parallel fixing blocks, and through holes are provided on each fixing block. Both ends of the disk plate pressing device 2-2 can be riveted to the disk plate pressing device through the key pin.

[0020] The double support positioning device 2-5 is in the shape of an arch. Two round holes are provided on the end face of the double support positioning device 2-5 on one side of the main support positioning device 2-9. After the two round holes overlap with the double support 1-4, each component is welded and fixed.

[0021] The support positioning device 2-7 is in the shape of a "匚". A round hole overlapping with the round hole on the end face of the support is provided on the end face of the support positioning device 2-7 on one side of the main support positioning device 2-9. After overlapping, the support and the right plate are welded and fixed.

[0022] When the assembling device for the fuel tank mounting seat of the rail passenger car of the present utility model is used, first, the left plate 1-1 is like Figure 3The plate is placed on the left side of the recessed platform of the main support positioning device 2-9, ensuring that the left plate end face is in contact with the recessed platform 2-9 and the upper end face of the base platform 2-1. It is then secured using the locking device 2-8. The right plate 1-3 is positioned by repeating the same steps as the left plate 1-1. The disc plate 1-2 is then placed on the upper end face of the main support positioning device 2-9 and aligned with the upper end face of the base platform 2-1 to achieve the overlap of the left and right plates with the disc plate. The double support 2-5 is then roughly placed on the upper end face of the disc plate 1-3. The disc plate pressing device handle 2-6 is then moved in an arc motion, causing it to press down on the disc plate using its own weight. The upper end face (after pressing down, the height adjustment screws 2-4 of the plate clamping device are pressed on the upper end face of the plate. If contact is not achieved, the height can be adjusted to achieve the contact clamping function); then slide the double support 1-4 that has been placed on the upper end face of the plate so that its two round holes overlap with the two round holes of the double support positioning device 2-5. Weld the components together. Then place the side end face of the support 1-5 on the side end face of the right plate 1-2, and at the same time, attach it to the end face of the support positioning device 2-7. Make the round hole on the end face of the support overlap with the round hole of the support positioning device 2-7 to achieve the positioning of the support 1-5. Weld the support to the right plate together.

[0023] After assembly, lift the handles 2-6 of the upper plate clamping device, remove the assembled oil tank mounting base, and the assembly process is complete.

Claims

1. A mounting device for a fuel tank of a rail passenger car, characterized in that, It consists of a base platform, a disc plate pressing device, a key pin, several disc plate pressing device height adjustment screws, a double support positioning device, a disc plate pressing device handle, a support positioning device, a locking device, and a main support positioning device; the main support positioning device is fixed on the base platform, the main support positioning device is arc-shaped and concave platforms are provided on both end faces, and the radius of the concave platforms is the same as that of the left and right plates of the fuel tank mounting seat. Fixed devices connected to the disc plate pressing device through key pins are provided on both sides of the base platform in the radial direction of the main support positioning device, and the disc plate pressing device can move axially according to the key pin; locking devices are provided on both sides of the main support positioning device, and the several disc plate pressing device height adjustment screws, the double support positioning device, the disc plate pressing device handle, and the support positioning device are all arranged on the disc plate pressing device.

2. The rail passenger car fuel tank mounting bracket assembly device according to claim 1, characterized in that, There are two fixed devices in total. Each fixed device includes two parallel fixed blocks, and through holes are provided on each fixed block. Both ends of the disc plate pressing device can be riveted to the disc plate pressing device through key pins.

3. The rail passenger car fuel tank mounting bracket assembly device according to claim 1, characterized in that, The double support positioning device is in the shape of an arch. Two round holes are provided on the end face of the double support positioning device on one side of the main support positioning device, and after the two round holes overlap with the double support, each component is welded and spot-fixed.

4. The rail passenger car fuel tank mounting bracket assembly device according to claim 1, characterized in that, The support positioning device is in the shape of a "匚" character. A round hole overlapping with the round hole on the end face of the support is provided on the end face of the support positioning device on one side of the main support positioning device. After overlapping, the support is welded and spot-fixed to the right plate.

5. The rail passenger car fuel tank mounting bracket assembly device according to claim 1, characterized in that, The inner ring surface of the disc plate pressing device corresponds to the outer ring surface of the main support positioning device. The several disc plate pressing device height adjustment screws are all pressed on the upper end surface of the disc plate and make the disc plate fit with the main support positioning device.