A new auxiliary equipment for replacing old and new steel rails

By designing structures such as fixed frames and lifting plates, and combining them with the elastic connection of limit blocks and positioning rods, the problem of the inability of existing equipment to adjust the clamping was solved, achieving stable clamping of rails under different sizes, and improving the efficiency and stability of replacing old and new rails.

CN224578567UActive Publication Date: 2026-07-31CHINA RAILWAY FIRST GROUP CO LTD +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA RAILWAY FIRST GROUP CO LTD
Filing Date
2025-07-17
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

The existing auxiliary equipment for replacing old and new rails cannot adjust the clamping according to the rail size, which causes the rail to wobble or shift or become mismatched in size during the gripping and clamping process, affecting work efficiency.

Method used

An auxiliary device for replacing old and new steel rails was designed, comprising a fixed frame, a moving rail, a winding device, a lifting plate, a fixed plate, a stabilizing component, a limit block, and a positioning mechanism. The lifting plate and the limit block work together to achieve stable clamping and adjustment of the steel rails, and the elastic connection between the positioning rod and the positioning plate improves the stability of the clamping frame.

Benefits of technology

It achieves automatic adjustment according to the rail size, avoiding the swaying and falling off of the rail during the clamping process, and improving the efficiency and stability of the replacement of old and new rails.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to the field of rail technology and discloses an auxiliary device for exchanging old and new rails. It includes a fixed frame, a movable rail fixedly connected to the bottom of the fixed frame, a winding device slidably connected to the bottom of the movable rail, a lifting plate fixedly connected to the bottom of the winding device, a fixed plate fixedly connected to the side wall of the lifting plate, a stabilizing component inside the fixed plate, and a movable frame slidably connected inside the lifting plate. The inner side wall of the movable frame is elastically connected to a limit block via a connecting spring. In this utility model, the arrangement of the lifting plate, movable frame, limit block, positioning rod, positioning plate, positioning spring, connecting spring, push rod, and clamping frame ensures stability during the adjustment process of the clamping frame driven by the limit block. This avoids unstable clamping due to instability in the limit block's insertion, thus improving the working efficiency of the auxiliary device for exchanging old and new rails.
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Description

Technical Field

[0001] This utility model relates to the field of track technology, and in particular to an auxiliary device for replacing old and new steel rails. Background Technology

[0002] Rail steel is a specialized type of steel used to manufacture rails for locomotives, cranes, and other equipment. According to Chinese national standards and the standards of the Ministry of Metallurgical Industry, rails are classified into railway rails, light rails, conductive rails, and crane rails. Auxiliary equipment for replacing old and new rails plays an important role in railway maintenance operations, and auxiliary equipment is required during the replacement of old and new rails.

[0003] The existing technology has the following drawbacks: some existing rail replacement auxiliary equipment is inconvenient to adjust the clamping and picking effect according to the size of the rail during use. This results in the middle of the longer rail being gripped while the ends wobble and shift, and the size is too large when clamping shorter rails. Therefore, it is necessary to replace the auxiliary equipment for different rail sizes, which reduces the working efficiency of the replacement auxiliary equipment. To solve the above problems, a new rail replacement auxiliary equipment is proposed. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an auxiliary device for replacing old and new rails, aiming to improve the problem in the existing technology where appropriate auxiliary devices need to be replaced according to different rail sizes, thereby reducing the efficiency of rail replacement work.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: an auxiliary device for exchanging old and new steel rails, comprising a fixed frame, a movable rail fixedly connected to the bottom of the fixed frame, a winding device slidably connected to the bottom of the movable rail, a lifting plate fixedly connected to the bottom of the winding device, a fixed plate fixedly connected to the side wall of the lifting plate, a stabilizing component disposed inside the fixed plate, a movable frame slidably connected to the inside of the lifting plate, a limit block elastically connected to the inner side wall of the movable frame via a connecting spring, a push rod fixedly connected to the top of the limit block, a clamping frame fixedly connected to the bottom of the limit block, and a positioning mechanism disposed at the top of the limit block;

[0006] The positioning mechanism includes a positioning rod, the bottom of which is fixedly connected to the top of the limiting block, and a positioning plate is elastically connected to the side wall of the positioning rod via a positioning spring.

[0007] As a further description of the above technical solution:

[0008] The stabilization component includes a stabilizing frame, the side wall of which is fixedly connected to the side wall of a fixed plate, the inner side wall of which is elastically connected to a stabilizing plate via a stabilizing spring, and the interior of the fixed plate is elastically connected to a fixing rod via a return spring.

[0009] As a further description of the above technical solution:

[0010] The lifting plate has a limiting groove inside that matches the size of the moving frame, and the inner side wall of the limiting groove has multiple limiting holes whose size matches the size of the limiting block.

[0011] As a further description of the above technical solution:

[0012] The top of the limiting hole is provided with a positioning groove, and the positioning rod is slidably connected in the positioning groove.

[0013] As a further description of the above technical solution:

[0014] The push rod passes through and is slidably connected to the top of the moving frame, and the positioning plate is slidably connected inside the positioning rod.

[0015] As a further description of the above technical solution:

[0016] The bottom of the positioning plate is provided with a positioning block, and the top of the lifting plate is provided with a positioning hole that matches the size of the positioning block.

[0017] As a further description of the above technical solution:

[0018] The stabilizing plate is slidably connected inside the fixed plate, and the fixing rod is slidably connected inside the fixed plate.

[0019] As a further description of the above technical solution:

[0020] The stabilizing plate has a fixing hole inside, and the fixing rod is inserted into the fixing hole.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the setting of lifting plate, moving frame, limiting block, positioning rod, positioning plate, positioning spring, connecting spring, push rod and clamping frame ensures the stability of the clamping frame during the adjustment process driven by the limiting block, and avoids the clamping frame from shaking and becoming unstable during the clamping process due to the unstable insertion of the limiting block, which is conducive to improving the working efficiency of the auxiliary equipment for replacing old and new rails.

[0023] 2. In this utility model, the setting of a fixing plate, a stabilizing frame, a stabilizing spring, a stabilizing plate, a return spring, and a fixing rod meets the requirement of stabilizing the rail during the clamping and replacement process, and avoids the situation where the rail falls off due to shaking during the clamping process because it is inconvenient to stabilize the rail during the clamping process, which helps to improve the stability of the rail clamping process. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the fixing frame of the auxiliary equipment for exchanging old and new steel rails proposed in this utility model;

[0025] Figure 2 This is a three-dimensional structural schematic diagram of the lifting plate of an auxiliary device for exchanging old and new steel rails proposed in this utility model.

[0026] Figure 3 This is a cross-sectional view of the lifting plate of an auxiliary device for exchanging old and new steel rails proposed in this utility model.

[0027] Figure 4 This is a cross-sectional view of the moving frame, limiting block, positioning mechanism, and clamping frame of an auxiliary device for exchanging old and new steel rails proposed in this utility model.

[0028] Figure 5 This utility model proposes an auxiliary device for exchanging old and new steel rails. Figure 4 Enlarged schematic diagram of the internal structure of part A in the middle.

[0029] Legend:

[0030] 1. Fixed frame; 2. Moving rail; 3. Winding device; 4. Lifting plate; 5. Fixed plate; 6. Stabilizing assembly; 61. Stabilizing frame; 62. Stabilizing spring; 63. Stabilizing plate; 64. Return spring; 65. Fixed rod; 7. Moving frame; 8. Limit block; 9. Positioning mechanism; 91. Positioning rod; 92. Positioning plate; 93. Positioning spring; 10. Connecting spring; 11. Push rod; 12. Clamping frame. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figures 1-3This utility model provides an embodiment of an auxiliary device for exchanging old and new steel rails, including a fixed frame 1, a movable rail 2 fixedly connected to the bottom of the fixed frame 1, a winding device 3 slidably connected to the bottom of the movable rail 2, the movable rail 2 being configured to allow the winding device 3 to move inside the fixed frame 1, a lifting plate 4 fixedly connected to the bottom of the winding device 3, the winding device 3 driving the lifting plate 4 to rise and fall inside the fixed frame 1, a fixed plate 5 fixedly connected to the side wall of the lifting plate 4, a stabilizing component 6 being provided inside the fixed plate 5, the fixed plate 5 protecting the side wall of the lifting plate 4 and stabilizing the steel rails during transportation, a movable frame 7 slidably connected inside the lifting plate 4, a limiting groove adapted to the size of the movable frame 7 being provided inside the lifting plate 4, the limiting groove allowing the movable frame 7 to slide stably inside the lifting plate 4;

[0033] Furthermore, the inner wall of the movable frame 7 is elastically connected to the limiting block 8 via the connecting spring 10. When the limiting block 8 is pushed, it compresses the connecting spring 10, causing the connecting spring 10 to deform. During reset, the rebound of the connecting spring 10 drives the limiting block 8 to slide and reset. The inner wall of the limiting groove is provided with multiple limiting holes whose size matches that of the limiting block 8. The top of the limiting block 8 is fixedly connected to a push rod 11. By pushing the push rod 11, the limiting block 8 is slid into the interior of the movable frame 7. At the same time, the setting of the limiting holes ensures the stability of the movable frame 7 after it moves to different positions. The push rod 11 passes through and is slidably connected to the top of the movable frame 7. The bottom of the limiting block 8 is fixedly connected to a clamping frame 12. The clamping frame 12 is used to stably clamp the old rails that need to be replaced and the new rails that are laid. The top of the limiting block 8 is provided with a positioning mechanism 9.

[0034] Reference Figures 3-5 The positioning mechanism 9 includes a positioning rod 91, the bottom of which is fixedly connected to the top of the limiting block 8. A positioning groove is provided at the top of the limiting hole, and the positioning rod 91 is slidably connected in the positioning groove. The positioning groove allows the limiting block 8 to move and drive the positioning rod 91 to slide stably in the positioning groove. The side wall of the positioning rod 91 is elastically connected to a positioning plate 92 via a positioning spring 93. The positioning plate 92 is slidably connected inside the positioning rod 91. Pushing the positioning plate 92 compresses the positioning spring 93, causing the positioning spring 93 to deform. When resetting, the rebound of the positioning spring 93 drives the positioning plate 92 to slide and reset. A positioning block is provided at the bottom of the positioning plate 92, and a positioning hole with a size matching the positioning block is provided at the top of the lifting plate 4. The positioning hole allows the limiting block 8 to drive the positioning rod 91 to slide to a suitable position, and the positioning block is inserted into the positioning hole to improve the stability of the positioning rod 91.

[0035] Reference Figures 1-3The stabilizing component 6 includes a stabilizing frame 61, the side wall of which is fixedly connected to the side wall of the fixed plate 5. The inner side wall of the stabilizing frame 61 is elastically connected to a stabilizing plate 63 via a stabilizing spring 62. When the stabilizing plate 63 is pushed, it compresses the stabilizing spring 62. When resetting, the rebound of the stabilizing spring 62 causes the stabilizing plate 63 to slide and reset. The stabilizing plate 63 is slidably connected inside the fixed plate 5. The fixed plate 5 has a sliding hole inside, which allows the stabilizing plate 63 to slide inside the fixed plate 5. The fixed plate 5 has a fixed rod 65 elastically connected inside via a reset spring 64. Pushing the fixed rod 65 compresses the reset spring 64, causing it to deform. When resetting, the rebound of the reset spring 64 causes the fixed rod 65 to slide and reset. The fixed rod 65 is slidably connected inside the fixed plate 5. The stabilizing plate 63 has a fixing hole inside, into which the fixed rod 65 is inserted. The fixing hole allows the fixed rod 65 to slide inside the fixed plate 5 and be inserted into the stabilizing plate 63, improving the stability of the stabilizing plate 63 when it is in a limited position.

[0036] Working principle: In use, the fixed frame 1 is moved to the desired position. Then, the winding device 3 drives the lifting plate 4 to descend, and then the lifting plate 4 is lowered to the rail to be wound. Then, the clamping frame 12 is adjusted according to the different rail sizes. During the adjustment, the push rod 11 is pushed to drive the limiting block 8 to squeeze the connecting spring 10 and enter the interior of the moving frame 7. During the sliding process of the limiting block 8, the positioning rod 91 is driven to slide. After sliding to the side wall of the moving frame 7, the positioning plate 92 is pushed to squeeze the positioning spring 93 and slides inside the positioning rod 91. Then, after the sliding moving frame 7 is adjusted to a suitable position inside the lifting plate 4, the push rod 11 is released. The rebound of the connecting spring 10 drives the limiting block 8 to slide and reset and then insert into the interior of the lifting plate 4. At the same time, the push of the positioning plate 92 is released. The rebound of the positioning spring 93 drives the positioning plate 92 to slide and reset and then insert into the interior of the lifting plate 4. This improves the stability of the limiting block 8 during the insertion process and also improves the stability of the clamping frame 12 after adjustment.

[0037] When the winding device 3 operates, it drives the lifting plate 4 to rise, thereby driving the old rail to rise. When the fixed rod 65 is pushed to squeeze the reset spring 64, it is pulled out from the inside of the stabilizing plate 63 and enters the inside of the fixed plate 5. Then, the rebound of the stabilizing spring 62 drives the stabilizing frame 61 to rebound and reset, which has a stabilizing effect on the side wall of the old rail, preventing the old rail from shaking and being damaged due to vibration during the lifting and transportation process, and improving the stability of the old rail during the lifting and transportation process.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for exchanging old and new steel rails, comprising a fixing frame (1), characterized in that: The bottom of the fixed frame (1) is fixedly connected to a moving rail (2), the bottom of the moving rail (2) is slidably connected to a winding device (3), the bottom of the winding device (3) is fixedly connected to a lifting plate (4), the side wall of the lifting plate (4) is fixedly connected to a fixed plate (5), the inside of the fixed plate (5) is provided with a stabilizing component (6), the inside of the lifting plate (4) is slidably connected to a moving frame (7), the inner side wall of the moving frame (7) is elastically connected to a limiting block (8) by a connecting spring (10), the top of the limiting block (8) is fixedly connected to a push rod (11), the bottom of the limiting block (8) is fixedly connected to a clamping frame (12), and the top of the limiting block (8) is provided with a positioning mechanism (9). The positioning mechanism (9) includes a positioning rod (91), the bottom of which is fixedly connected to the top of the limiting block (8), and the side wall of the positioning rod (91) is elastically connected to a positioning plate (92) by a positioning spring (93).

2. The auxiliary equipment for replacing old and new rails according to claim 1, characterized in that: The stabilizing component (6) includes a stabilizing frame (61), the side wall of the stabilizing frame (61) is fixedly connected to the side wall of the fixing plate (5), the inner side wall of the stabilizing frame (61) is elastically connected to a stabilizing plate (63) by a stabilizing spring (62), and the inside of the fixing plate (5) is elastically connected to a fixing rod (65) by a reset spring (64).

3. The auxiliary equipment for replacing old and new rails according to claim 1, characterized in that: The lifting plate (4) has a limiting groove inside that matches the size of the moving frame (7), and the inner side wall of the limiting groove has multiple limiting holes whose size matches the size of the limiting block (8).

4. The auxiliary equipment for replacing old and new rails according to claim 3, characterized in that: The top of the limiting hole is provided with a positioning groove, and the positioning rod (91) is slidably connected in the positioning groove.

5. The auxiliary equipment for replacing old and new rails according to claim 1, characterized in that: The push rod (11) passes through and is slidably connected to the top of the moving frame (7), and the positioning plate (92) is slidably connected inside the positioning rod (91).

6. The auxiliary equipment for replacing old and new rails according to claim 1, characterized in that: The bottom of the positioning plate (92) is provided with a positioning block, and the top of the lifting plate (4) is provided with a positioning hole that matches the size of the positioning block.

7. The auxiliary equipment for replacing old and new rails according to claim 2, characterized in that: The stabilizing plate (63) is slidably connected inside the fixing plate (5), and the fixing rod (65) is slidably connected inside the fixing plate (5).

8. The auxiliary equipment for replacing old and new rails according to claim 2, characterized in that: The stabilizing plate (63) has a fixing hole inside, and the fixing rod (65) is inserted into the fixing hole.