Railway construction machine automatic track entry and exit device
By combining bidirectional inclined tracks with dual traction equipment and adjustable wheel stops, the limitations of unidirectional operation and safety hazards of existing devices have been solved, enabling railway construction machinery to quickly, safely, and flexibly access the tracks, thus improving construction efficiency and safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHIJIAZHUANG ENGINEERING PROJECT MANAGEMENT DEPARTMENT OF CHINA RAILWAY BEIJING BUREAU GROUP CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-14
AI Technical Summary
Existing automatic track loading and unloading devices for railway construction machinery have safety hazards such as limited one-way operation, frequent site adjustments, inability to adapt to different track gauges or terrain changes, and easy deviation and slippage during transportation.
The design incorporates a bidirectional inclined track and dual traction equipment, along with adjustable wheel stops, enabling flexible up-and-down operation of construction machinery and adapting to different equipment sizes. The combination of inclined and flat tracks enhances adaptability and safety.
This enables construction machinery to move quickly, safely, and flexibly onto and off the road, reducing preparation time, improving relocation efficiency, enhancing adaptability to complex working conditions, and reducing safety risks during transportation.
Smart Images

Figure CN224492541U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to railway technical field, concretely is a railway construction machinery automatic up and down device. BACKGROUND
[0002] Railway construction is the core link of guaranteeing railway transportation safety and efficiency, especially in high-speed railway construction, track maintenance, ballast replacement, contact network maintenance and other operations increasingly rely on construction machinery, and construction machinery (such as steel rail polishing car, tamping machine, generator and the like) need to be frequently transferred between track and transport car, and traditionally up and down operation relies on manual handling or simple mechanical assistance, and there are problems of low efficiency, great labor intensity, prominent safety hazards and the like.
[0003] Through search, patent authorized announcement No.CN 213057068 U discloses a kind of railway construction machinery automatic up and down device, "including fixed in the end of construction transport car and realizing the support plane of construction transport car and the butt joint of guide support rail of steel rail, fixed on the construction transport car and drive construction machinery movement along the guide support rail of traction mechanism.The utility model guarantees that construction machinery is quickly, stably received and released, reduces personnel handling operation, guarantees personnel, mechanical safety, improves railway construction machinery receiving and releasing efficiency, satisfies railway department construction requirement", but, automatic up and down device is designed more with single end inclined rail, only supports one-way operation, and when site is limited, equipment position needs to be repeatedly adjusted, and transfer time is prolonged, part of device fixed structure is single, cannot adapt to different track pitch or topographic change, and lack dynamic stop device in transportation process, and equipment is easy to deviate or even slip due to inertia or jolt, threaten transportation safety. UTILITY MODEL CONTENT
[0004] The utility model aims at providing a kind of railway construction machinery automatic up and down device to solve the problems raised in the above background.
[0005] To achieve the above object, the utility model provides the following technical scheme:
[0006] An automatic track-mounting device for railway construction machinery includes a track trolley and a railway track. The track trolley is mounted on the railway track. Vertical plates are symmetrically arranged on the track trolley. A first roller and a second roller are rotatably mounted between the two vertical plates. The first roller and the second roller are arranged side by side. One end of the first roller and one end of the second roller are directly connected to the output shaft of a traction motor mounted on the vertical plates. Traction ropes are wound on the first roller and the second roller, respectively. The free end of the traction rope is attached to a hook. Two first inclined rails and two second inclined rails are inclinedly arranged at the front and rear of the track trolley, respectively. Positioning pins are installed at the bottom of the higher ends of the two first inclined rails and the two second inclined rails. The positioning pins are inserted into positioning holes opened on the track trolley. Fixed wheel stops and movable wheel stops are installed on the flat rails.
[0007] As a further embodiment of this utility model: one end of the first inclined track and one end of the second inclined track overlap with both ends of the flat track.
[0008] As a further improvement of this utility model, the track trolley is provided with a track storage slot that is compatible with the first inclined track or the second inclined track.
[0009] As a further improvement of this utility model, the fixed stop wheel block and the movable stop wheel block are arranged opposite each other on the flat tracks on both sides of the vertical plate.
[0010] As a further improvement of this utility model: the flat track is provided with equal-spaced adjustment holes, and bolts are installed in the adjustment holes; the movable stop wheel block is fixedly connected to the flat track by bolts.
[0011] Compared with the prior art, the beneficial effects of this utility model are:
[0012] 1. This utility model features a track trolley with inclined tracks at both the front and rear, equipped with dual traction devices. This breaks through the limitation of traditional single-end inclined tracks that can only move up and down the track in one direction. It can flexibly initiate automatic up and down operations from the front or rear of the equipment. Especially in scenarios with narrow spaces or obstructions at the front of the equipment, it can operate in reverse without adjusting the equipment position, greatly shortening the preparation time for up and down, improving the efficiency of construction machinery relocation, and the bidirectional drive design also enhances the adaptability of the device to complex working conditions, reduces the cost of secondary adjustments caused by errors in operation in one direction, and significantly optimizes the continuity of operations.
[0013] 2. The adjustable wheel stop on the flat track of this utility model achieves personalized stopping adaptation for different types of equipment through structural optimization. Traditional devices, due to the fixed wheel stop or lack of stopping function, are prone to the risk of equipment falling due to shaking or deviation during transportation. This design can accurately match construction machinery of different sizes by adjusting the position of the wheel stop, eliminating the risk of falling during transportation from the source. At the same time, it avoids the cumbersome operation of additional equipment reinforcement, ensuring the safety of entering and leaving the track and during transportation, and improving the compatibility of the device with multiple specifications of equipment. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of an automatic track-mounting device for railway construction machinery.
[0015] Figure 2 An automatic track entry and exit device for railway construction machinery Figure 1 A schematic diagram of the structure of the first inclined track.
[0016] Figure 3 An automatic track entry and exit device for railway construction machinery Figure 1 Enlarged view of the structure at point A in the middle.
[0017] Figure 4 An automatic track entry and exit device for railway construction machinery Figure 1 Enlarged view of the structure at point B in the middle.
[0018] 1. Track trolley; 2. Horizontal track; 3. Vertical plate; 4. First roller; 5. Second roller; 6. Traction rope; 7. Hook; 8. Traction motor; 9. First inclined track; 10. Second inclined track; 11. Positioning pin; 12. Railway track; 13. Track storage groove; 14. Fixed wheel stop block; 15. Movable wheel stop block; 16. Adjustment hole; 17. Bolt; 18. Positioning hole. Detailed Implementation
[0019] 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.
[0020] Please see Figure 1In this embodiment of the invention, an automatic track-mounting device for railway construction machinery includes a track trolley 1 and a railway track 12. The track trolley 1 is mounted on the railway track 12. Vertical plates 3 are symmetrically arranged on the track trolley 1. A first roller 4 and a second roller 5 are rotatably mounted between the two vertical plates 3. The first roller 4 and the second roller 5 are arranged side by side. One end of the first roller 4 and one end of the second roller 5 are directly connected to the output shaft of a traction motor 8 mounted on the vertical plates 3. Traction ropes 6 are wound on the first roller 4 and the second roller 5, and hooks 7 are attached to the free ends of the traction ropes 6.
[0021] Please see Figures 1-4 The track trolley 1 is provided with two first inclined rails 9 and two second inclined rails 10 at the front and rear respectively. The bottom of the higher end of the two first inclined rails 9 and the two second inclined rails 10 is equipped with positioning pins 11. The positioning pins 11 are inserted into the positioning holes 18 opened on the track trolley 1. The flat track 2 is equipped with fixed wheel stop blocks 14 and movable wheel stop blocks 15. One end of the first inclined rail 9 and one end of the second inclined rail 10 overlap with the two ends of the flat track 2.
[0022] The track trolley 1 is provided with a track storage slot 13 that is compatible with the first inclined track 9 or the second inclined track 10. The track storage slot 13 can store the inclined track when not in use, making it convenient for the track trolley 1 to move on the railway track 12.
[0023] Fixed wheel stop block 14 and movable wheel stop block 15 are arranged opposite each other on the flat track 2 on both sides of the vertical plate 3. By being arranged in a corresponding manner, the front and rear wheels of the construction machinery can be limited to prevent the construction machinery from falling off the track trolley 1 during transportation.
[0024] Adjustment holes 16 are evenly spaced on the flat track 2. Bolts 17 are installed on the adjustment holes 16. The movable stop wheel block 15 is fixedly connected to the flat track 2 by the bolts 17. The setting of the adjustment holes 16 can facilitate the adjustment of the position of the movable stop wheel block 15. By adjusting the position of the movable stop wheel block 15, the distance between the movable stop wheel block 15 and the fixed stop wheel block 14 can be adjusted, thereby adapting to the positioning needs of construction machinery with different wheel gauges.
[0025] The working principle of this utility model is as follows: When it is necessary to unload the construction machinery from the railway track 12, simply move the track trolley 1 next to the construction machinery, and then place the first inclined track 9 or the second inclined track 10 close to the construction machinery between the track trolley 1 and the railway track 12, so that the positioning pins 11 on the first inclined track 9 or the second inclined track 10 are inserted into the corresponding positioning holes 18 to fix the inclined track. Then, the hooks 7 on the traction rope 6 are hung on the pre-reserved hanging holes or traction rings of the construction machinery, and the traction motor 8 is started. The traction motor 8 drives the first roller 4 or the second roller 5 to rotate and pull the construction machinery from the railway track 12 and the inclined track to the flat track 2 of the track trolley 1. When unloading the construction machinery from the track trolley 1 onto the railway track 12, simply rotate the roller in the opposite direction so that the construction machinery travels on the flat track 2, the inclined track and the railway track 12 in sequence. After use, the inclined track is lifted up and stored in the track storage groove 13.
[0026] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0027] Although the present invention 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 invention should be included within the protection scope of the present invention.
Claims
1. An automatic track-entry / exit device for railway construction machinery, comprising a track trolley (1), a railway track (12), and a level track (2), characterized in that: The track trolley (1) is mounted on a railway track (12). Vertical plates (3) are symmetrically arranged on the track trolley (1). A first roller (4) and a second roller (5) are rotatably mounted between the two vertical plates (3). The first roller (4) and the second roller (5) are arranged side by side. One end of the first roller (4) and one end of the second roller (5) are directly connected to the output shaft of the traction motor (8) mounted on the vertical plate (3). Traction ropes (6) are wound on the first roller (4) and the second roller (5) respectively. The free end of the traction rope (6) is attached with a hook (7). The front and rear of the track trolley (1) are respectively provided with two first inclined rails (9) and two second inclined rails (10). The bottom of the higher end of the two first inclined rails (9) and the higher end of the two second inclined rails (10) are equipped with positioning pins (11). The positioning pins (11) are inserted into the positioning holes (18) opened on the track trolley (1). The flat rail (2) is equipped with a fixed wheel stop block (14) and a movable wheel stop block (15).
2. The automatic track entry and exit device for railway construction machinery according to claim 1, characterized in that: One end of the first inclined track (9) and one end of the second inclined track (10) overlap with both ends of the flat track (2).
3. The automatic track entry and exit device for railway construction machinery according to claim 1, characterized in that: The track trolley (1) is provided with a track storage slot (13) that is compatible with the first inclined track (9) or the second inclined track (10).
4. The automatic track entry and exit device for railway construction machinery according to claim 1, characterized in that: The fixed wheel stop block (14) and the movable wheel stop block (15) are arranged opposite each other on the flat track (2) on both sides of the vertical plate (3).
5. The automatic track entry and exit device for railway construction machinery according to claim 1, characterized in that: The flat track (2) has equal-spaced adjustment holes (16), and bolts (17) are installed on the adjustment holes (16). The movable stop wheel block (15) is fixedly connected to the flat track (2) by the bolts (17).