A chain fracture repair auxiliary device for a chain transfer machine of an automobile coating production line

By designing an auxiliary device for chain breakage repair with intermediate web plates and end positioning plates, the problem of the inability to quickly repair broken chains was solved, achieving an efficient and safe repair process, improving maintenance efficiency and reducing safety risks.

CN224529709UActive Publication Date: 2026-07-21SHAANXI HEAVY DUTY AUTOMOBILE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI HEAVY DUTY AUTOMOBILE CO LTD
Filing Date
2025-06-17
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

When the chain of a heavy-duty chain conveyor in the drying chamber of an automotive painting production line breaks, it cannot be repaired quickly, leading to production stoppages and safety risks. Furthermore, traditional repair methods are time-consuming.

Method used

Design a repair auxiliary device including a middle web plate and end positioning plates. The broken part of the chain is supported by vertical and lateral notches and connected by positioning pins to achieve rapid and safe movement of the broken part of the chain to the repair station for repair.

Benefits of technology

It improved the efficiency of chain breakage repair, reduced the repair time from 10 hours to 1 hour, eliminated the safety risks of manual handling, and improved maintenance efficiency by 90%.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a kind of chain fracture repair auxiliary devices of automobile coating production line chain type moving machine chain, including intermediate web and end positioning plate;Several vertical notches are provided on intermediate web, and end positioning plate is oppositely arranged at the both ends of intermediate web, and intermediate web and end positioning plate are detachably connected, and lateral notch is provided on end positioning plate, vertical notch is used for the up-down direction support of chain fracture connecting place, and lateral notch is used for the left-right direction support of chain fracture connecting place;The utility model can realize fast temporary connection and safely move chain fracture part to repair station for repair;It can improve maintenance efficiency by more than 90%, and eliminate the safety risk of manual handling.
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Description

Technical Field

[0001] This utility model relates to the field of automobile production line technology, and in particular to an auxiliary device for repairing broken chains of chain conveyors in automobile painting production lines. Background Technology

[0002] In automotive painting production lines, heavy-duty chain conveyors in the drying chamber, carrying 60-70T workpieces, are prone to major malfunctions such as chain breakage due to mechanical reasons like jamming and wear. Because of the complex operating conditions and special process requirements of the drying chamber, conventional maintenance lifting equipment cannot be installed. A chain breakage directly causes production stoppage, severely restricting capacity. Existing automotive painting production lines using heavy-duty chain conveyors in the drying chamber have the following technical drawbacks: 1. After a chain breakage, the high-temperature, enclosed environment and heavy load limitations prevent the use of lifting equipment; 2. Traditional repair methods involve temporary welding of the broken chain section and chain hoisting, taking 8-10 hours; 3. Forcibly moving the chain conveyor before the load is transferred can easily lead to secondary breakage, causing production line downtime losses and posing a risk of injury to personnel. Utility Model Content

[0003] The purpose of this invention is to provide an auxiliary device for repairing broken chains of chain conveyors in automotive painting production lines, aiming to solve the problem of low repair efficiency when chains of heavy-duty chain conveyors break in the drying chamber of automotive painting production lines.

[0004] The technical solution of this utility model:

[0005] An auxiliary device for repairing chain breakage on a chain conveyor in an automotive painting production line includes a middle web plate and end positioning plates. The middle web plate has several vertical notches, and the end positioning plates are positioned opposite each other at both ends of the middle web plate. The middle web plate and the end positioning plates are detachably connected. The end positioning plates have lateral notches. The vertical notches are used for vertical support at the broken chain connection, and the lateral notches are used for horizontal support at the broken chain connection.

[0006] Furthermore, the vertical notch has a U-shaped structure and an arc-shaped bottom.

[0007] Furthermore, the lateral notch has an arc-shaped structure.

[0008] Furthermore, the disassembly structure between the intermediate web plate and the end positioning plate includes:

[0009] The middle web plate is symmetrically provided with anti-detachment structure one at both ends; the end positioning plate is provided with anti-detachment structure three, and the anti-detachment structure one and the anti-detachment structure three are provided with a positioning pin through them. The anti-detachment structure one and the anti-detachment structure three have the same structure, both of which are inclined upward at the opening and have an arc-shaped structure at the bottom.

[0010] Furthermore, pin holes are symmetrically provided at both ends of the intermediate web plate, and the top of the end positioning plate is provided with anti-detachment structure two and through notch, and the anti-detachment structure two and the through notch are connected; a positioning pin is provided through the pin hole and the anti-detachment structure two, and the anti-detachment structure two has the same structure as the anti-detachment structure three.

[0011] Furthermore, the end positioning plate has a double-layer structure, and the bottom of the end positioning plate is connected at three points near the anti-detachment structure.

[0012] Furthermore, the intermediate web is made of steel.

[0013] Technical effects of this utility model:

[0014] This utility model features a middle web plate and end positioning plates, enabling rapid temporary connection and safe displacement of broken chain sections to the repair station for repair; it can improve maintenance efficiency by more than 90% and eliminate the safety risks of manual handling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the intermediate web structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the end positioning plate structure of this utility model;

[0018] Figure 4 This is a diagram showing the overall structure of this utility model in use when the chain breaks.

[0019] In the diagram: 1. Middle web plate; 11. Vertical notch; 12. Pin hole; 13. Anti-detachment structure one; 2. End positioning plate; 21. Lateral notch; 22. Anti-detachment structure two; 23. Through notch; 24. Anti-detachment structure three; 3. Positioning pin. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0021] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0023] like Figure 1-4 As shown: An auxiliary device for repairing chain breakage of a chain conveyor in an automotive painting production line includes a middle web plate 1 and an end positioning plate 2; the middle web plate 1 is provided with a plurality of vertical notches 11, and the end positioning plates 2 are symmetrically arranged at both ends of the middle web plate 1. The middle web plate 1 and the end positioning plates 2 are detachably connected. The end positioning plates 2 are provided with lateral notches 21. The vertical notches 11 are used for vertical support at the chain breakage connection, and the lateral notches 21 are used for horizontal support at the chain breakage connection.

[0024] To ensure the stability of the central roller at the broken connection point of the chain, the vertical notch 11 has a U-shaped structure with an arc-shaped bottom, a certain depth, and the arc-shaped structure is tangent to the central roller.

[0025] To ensure the stability of the central roller at the broken connection point of the chain, the lateral notch 21 is an arc-shaped structure that fits into the central roller. The vertical notch 11 and the lateral notch 21 together engage and stabilize the central roller of the chain.

[0026] The disassembly structure between the intermediate web plate 1 and the end positioning plate 2 includes:

[0027] The middle web plate 1 has symmetrical anti-detachment structures 13 at both ends; the end positioning plate 2 has an anti-detachment structure 24. Anti-detachment structures 13 and 24 are connected by a positioning pin 3. The anti-detachment structures 13 and 24 have identical structures, both with upward-sloping openings and arc-shaped bottoms. The anti-detachment structures 13 and 24 together serve as anti-detachment structures, facilitating disassembly and installation.

[0028] Furthermore, pin holes 12 are symmetrically arranged at both ends of the intermediate web plate 1, and the top of the end positioning plate 2 is provided with an anti-detachment structure 22 and a through notch 23, which are connected; a positioning pin 3 is provided through the pin holes 12 and the anti-detachment structure 22, and the structure of the anti-detachment structure 22 is the same as that of the anti-detachment structure 3 24. The pin holes 12 and the anti-detachment structure 22 further serve together as an anti-detachment structure, which is easy to disassemble and install. The structure of the anti-detachment structure 22 is the same as that of the anti-detachment structure 1 13 and the anti-detachment structure 3 24, which is easy to mass-produce.

[0029] The end positioning plate 2 has a double-layer structure, and is connected to the bottom of the end positioning plate 2 near the anti-detachment structure 3 24. That is, the end positioning plate 2 has a U-shaped structure as a whole, and preferably, the width in the middle is 1mm wider than the width of the middle web plate.

[0030] The intermediate web plate 1 is made of steel. Preferably, the thickness of the intermediate web plate 1 is 10-11mm and the material is Q345B low alloy steel.

[0031] Working principle: When a heavy-load conveyor chain (load 60-70T) breaks, the intermediate web plate 1 is installed from below the chain to the broken part. The vertical notch 11 of the intermediate web plate 1 is tangent to the chain's central roller, with a load capacity of 70T. The end positioning plates 2 are installed on both sides of the intermediate web plate 1 using positioning pins 3. The vertical notch 11 and the lateral notch 21 together engage and stabilize the chain's central roller, preventing the intermediate web plate 1 from shifting laterally or falling off, while also connecting and fixing the chain. After the device is installed, the chain conveyor is started to move the broken part of the chain to the repair station for repair. The repair time is reduced from 10 hours to 1 hour, and the efficiency is increased by 90%.

[0032] Exemplary embodiments of this disclosure have been specifically shown and described above. It should be understood that this disclosure is not limited to the detailed structures, arrangements, or implementations described herein; rather, this disclosure is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended claims.

Claims

1. An auxiliary device for repairing broken chains on a chain conveyor in an automotive painting production line, characterized in that, It includes a middle web plate (1) and an end positioning plate (2); the middle web plate (1) is provided with several vertical notches (11), and the end positioning plates (2) are provided opposite to each other at both ends of the middle web plate (1). The middle web plate (1) and the end positioning plates (2) are detachably connected. The end positioning plates (2) are provided with lateral notches (21). The vertical notches (11) are used for vertical support at the chain breakage connection, and the lateral notches (21) are used for horizontal support at the chain breakage connection.

2. The auxiliary device for repairing broken chains of chain conveyors in automotive painting production lines as described in claim 1, characterized in that, The vertical notch (11) has a U-shaped structure and an arc-shaped bottom.

3. The auxiliary device for repairing broken chains of chain conveyors in automotive painting production lines as described in claim 2, characterized in that, The lateral notch (21) is an arc-shaped structure.

4. The auxiliary device for repairing broken chains of chain conveyors in automotive painting production lines as described in claim 1, characterized in that, The disassembly structure between the intermediate web plate (1) and the end positioning plate (2) includes: The middle web plate (1) is symmetrically provided with anti-detachment structure one (13) at both ends; the end positioning plate (2) is provided with anti-detachment structure three (24), and the anti-detachment structure one (13) and the anti-detachment structure three (24) are provided with positioning pin (3) through them. The anti-detachment structure one (13) and the anti-detachment structure three (24) have the same structure, both of which are inclined upward at the opening and have an arc-shaped structure at the bottom.

5. The auxiliary device for repairing broken chains of chain conveyors in automotive painting production lines as described in claim 4, characterized in that, The middle web plate (1) is symmetrically provided with pin holes (12) at both ends. The end positioning plate (2) is provided with anti-detachment structure two (22) and through notch (23) at the top. The anti-detachment structure two (22) and the through notch (23) are connected. The pin hole (12) and the anti-detachment structure two (22) are provided with a positioning pin (3). The anti-detachment structure two (22) has the same structure as the anti-detachment structure three (24).

6. The auxiliary device for repairing broken chains of chain conveyors in automotive painting production lines as described in claim 5, characterized in that, The end positioning plate (2) has a double-layer structure, and the bottom of the end positioning plate (2) is connected to the anti-detachment structure three (24).

7. The auxiliary device for repairing broken chains of chain conveyors in automotive painting production lines as described in claim 1, characterized in that, The intermediate web (1) is made of steel.