Multifunctional pillow changing machine

By using technical means such as steel structure skeletons and large linear modules in the rail sleeper replacement machine, the existing rail sleeper replacement machine has large size, high material cost and obstructed operator vision, and a more efficient and practical rail sleeper replacement process has been achieved.

CN119531199BActive Publication Date: 2025-04-29FUJIAN HUISHENG RAILWAY HEAVY IND
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Patent Information

Application Number
CN202510089349.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-01-21
Publication Date
2025-04-29
Estimated Expiration
2045-01-21

AI Technical Summary

Technical Problem

The existing rail sleeper replacement machine has large size and high material cost, and the operator's vision is blocked and the effect of changing the pillow.

Method used

A multi-functional pillow changer was designed, using a steel structure skeleton to replace the traditional steel plate structure, expanding the operator's field of view, and automating and efficiently the rail pillow change process through large linear modules and robots.

Benefits of technology

It reduces the material cost of pillow replacement machine, expands the operator's vision, and improves the efficiency of pillow replacement and the practicality of operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a multifunctional sleeper changing machine, which belongs to the technical field of railway track sleeper changing machines. The multifunctional sleeper changing machine comprises a railway track traveling vehicle, which travels on the rails, and a disc-shaped base is fixedly installed on the railway track traveling vehicle, a reduction motor is fixedly installed on the top of the disc-shaped base, a large turntable is installed on the bottom of the disc-shaped base, two limit sliding brackets are fixedly installed on the bottom of the large turntable, and each limit sliding bracket is slidably connected with a large linear module, two sliders are arranged on the guide rail of the large linear module, each slider is fixedly installed with a No. 1 manipulator, a clamp is fixedly installed at the execution end of the No. 1 manipulator, and two No. 2 manipulators are fixedly installed on the railway track traveling vehicle. It can complete the process of changing sleepers on the rails, and expands the operator's operating field of vision during operation. At the same time, since the material cost of the sleeper changing machine is greatly reduced, the practicality of the sleeper changing machine in actual operation is improved.
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Description

Technical Field

[0001] The invention relates to the technical field of railway track sleeper changing machines, and more specifically to a multifunctional sleeper changing machine. Background Art

[0002] The rail sleeper changing machine is a professional equipment modified from an excavator. Its chassis is equipped with a lifting travel frame, which enables it to travel on the railway. By replacing different front-end accessories, the sleeper changing machine can complete a variety of operations such as sleeper changing and screening. In addition, the rail sleeper changing machine is not easy to affect the normal operation of the railway. After replacing the railway sleepers with the sleeper changing machine, the use effect of the railway track can be effectively improved.

[0003] At present, common pillow changing machines are large in size, have high material costs, and operators will have a certain degree of visual obstruction when operating the pillow changing machines, which affects the pillow changing effect.

[0004] Therefore, in view of this, the existing structure is studied and improved, and a multifunctional pillow changing machine is provided, in order to achieve a more practical purpose. Summary of the invention

[0005] Technical issues to be solved

[0006] In view of the problems existing in the prior art, the purpose of the present invention is to provide a multifunctional sleeper changing machine, which can complete the rail sleeper changing process and expand the operator's operating field of view during operation. At the same time, since the material cost of the sleeper changing machine is greatly reduced, the practicability of the sleeper changing machine in actual operation is improved.

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] The multifunctional sleeper changing machine comprises a railway track traveling vehicle, which travels on the railway track. A disc-shaped base is fixedly installed on the railway track traveling vehicle, a reduction motor is fixedly installed on the top of the disc-shaped base, a large turntable is installed on the bottom of the disc-shaped base, the large turntable and the disc-shaped base cannot be separated, and the large turntable keeps rotating freely, the output end of the reduction motor is connected with a driving shaft through a coupling transmission, the driving shaft is fixed to the central axis of the large turntable, two limited sliding brackets are fixedly installed at the bottom end of the large turntable, the two limited sliding brackets are centrally symmetrically arranged with the axis of the large turntable as the center, and each limited sliding bracket is slidably connected with a large linear module, two sliders are arranged on the guide rail of the large linear module, the two sliders slide synchronously, each of the sliders is fixedly installed with a No. 1 manipulator, the execution end of the No. 1 manipulator is fixedly installed with a fixture, two No. 2 manipulators are fixedly installed on the railway track traveling vehicle, and the execution end of each No. 2 manipulator is fixedly installed with a stone cleaning scraper;

[0009] The limited sliding bracket includes two load-bearing steel plates, which are arranged in parallel and fixed on both sides of the bottom end surface of the large turntable respectively. Two round rod tracks are fixedly installed between the two load-bearing steel plates, and the large linear module slides along the round rod tracks.

[0010] Furthermore, the railway track traveling vehicle is composed of a front vehicle body, a rear vehicle body and a steel structure frame, wherein the front vehicle body is fixed to one end of the steel structure frame, and the rear vehicle body is fixed to the other end of the steel structure frame.

[0011] Furthermore, the disc-shaped base is fixedly installed at the center position of the steel structure frame, and two side anti-collision brackets are arranged in the middle of the steel structure frame, and the two side anti-collision brackets are respectively located on both sides of the disc-shaped base.

[0012] Furthermore, mounting brackets are fixedly provided on the side and top of the large linear module, and the mounting brackets are provided with two sliding holes, and the mounting brackets slide on the two round rod tracks through the two sliding holes.

[0013] Furthermore, two oil cylinders are fixedly installed below the large turntable. The two oil cylinders are centrally symmetrically arranged with the axis of the large turntable as the center, and the output shafts of the oil cylinders are fixed to the side of the mounting bracket.

[0014] Furthermore, a through hole is opened on the load-bearing steel plate near the oil cylinder, the aperture of the through hole is larger than the diameter of the output shaft of the oil cylinder, and the output shaft of the oil cylinder passes through the through hole and is connected to the outer side of the mounting bracket.

[0015] Furthermore, when the two large linear modules are in a fully extended state, the maximum operating distance thereof is not less than twice the width of the rail, and when the two large linear modules are in a fully closed state, the maximum operating distance thereof is not less than the width of the rail.

[0016] Furthermore, when the No. 1 robot is folded, the height of the corresponding clamp below the No. 1 robot is higher than the height of the No. 2 robot and the stone-cleaning scraper.

[0017] Furthermore, the width of the stone-cleaning scraper is smaller than the width of the rail, and both the No. 1 manipulator and the No. 2 manipulator can turn and move freely.

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] ① This solution improves the driving and operating space of the traditional sleeper changing vehicle and uses a steel structure frame instead of the traditional steel plate structure, which greatly saves the material cost of the sleeper changing vehicle. At the same time, the operator of the sleeper changing vehicle can observe and operate the construction from the side of the vehicle head, which expands the operator's field of view, solves the problem of obstructed field of view, and ensures the effect of sleeper changing.

[0020] ② In this solution, the two large linear modules of the sleeper changing vehicle can change their angles through the drive of the large turntable and the reduction motor, and then be unfolded through the oil cylinder to expand the operating area of ​​the sleeper changing, and the two large linear modules can operate separately, realizing partial duplication of the operation time of removing the old sleepers and the installation time of the new sleepers, thereby improving the overall operating efficiency, and when the sleeper changing vehicle is not operating, the two large linear modules are retracted by the oil cylinder, and then the two large linear modules are stored under the large turntable through the large turntable and the reduction motor, which can reduce the collision volume of the sleeper changing vehicle, facilitate the movement and transportation of the sleeper changing vehicle, and reduce the risk of collision damage to the sleeper changing vehicle.

[0021] The above-mentioned records related to the invention content are only an overview of the technical solution of the present application. In order to enable ordinary technicians in the field to more clearly understand the technical solution of the present application, and then implement it according to the text of the specification and the contents recorded in the drawings, and to make the above-mentioned purpose and other purposes, features and advantages of the present application easier to understand, the following is an explanation in combination with the specific implementation mode and drawings of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings are only used to illustrate the principles, implementation methods, applications, characteristics and effects of the specific embodiments of the present application and other related contents, and shall not be considered as limitations of the present application.

[0023] In the drawings of the specification:

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the pillow changing device in the present invention when it is fully unfolded;

[0025] Figure 2 It is a schematic diagram of the planar structure of the pillow changing device in the present invention when it is fully unfolded;

[0026] Figure 3 It is a schematic diagram of the three-dimensional structure of the pillow changing device in the present invention when it is completely folded;

[0027] Figure 4 A schematic diagram of the three-dimensional structure of the large linear module and its related structures in the present invention Figure 1 ;

[0028] Figure 5 A schematic diagram of the three-dimensional structure of the large linear module and its related structures in the present invention Figure 2 ;

[0029] Figure 6 It is a schematic diagram of the structure of the No. 2 manipulator and the stone-cleaning scraper in the present invention.

[0030] The reference numerals in the above drawings are described as follows:

[0031] 1. Railway track moving vehicle; 101. front vehicle body; 102. rear vehicle body; 103. steel structure frame; 1031. side anti-collision bracket;

[0032] 2. Disc-shaped base;

[0033] 3. Gear motor; 301. Drive shaft;

[0034] 4. Large turntable; 401. Oil cylinder;

[0035] 5. Limiting sliding bracket; 501. Load-bearing steel plate; 5011. Through hole; 502. Round rod track;

[0036] 6. Large linear module; 601. Slider; 602. Mounting bracket; 6021. Sliding hole;

[0037] 7. Robot arm No. 1; 701. Clamp;

[0038] 8. Robot arm No. 2; 801. Stone-cleaning scraper. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0040] See also Figure 1 - Figure 6 The multifunctional sleeper changing machine comprises a railway track traveling vehicle 1, which travels on the rails. [Explanation] The wheels of the railway track traveling vehicle 1 are similar to the wheels of a train and can move freely on the rails. The railway track traveling vehicle 1 has an independent driving system and a braking system. An operator seat is not arranged on the entire railway track traveling vehicle 1, which reduces the volume of the entire sleeper changing machine and saves the material cost of the sleeper changing machine.

[0041] At the same time, the operator can use the control terminal to perform remote control operations next to the rails, which allows the operator to better observe the operation process and avoid problems with obstruction of vision.

[0042] A disc-shaped base 2 is fixedly installed on the railway track traveling vehicle 1. [Explanation] The disc-shaped base 2 has a high load-bearing capacity, and the structures used for lifting and moving the sleepers are directly or indirectly connected to the disc-shaped base 2.

[0043] A reduction motor 3 is fixedly installed on the top of the disc-shaped base 2, and a large turntable 4 is installed on the bottom of the disc-shaped base 2. The large turntable 4 and the disc-shaped base 2 cannot be separated, and the large turntable 4 can keep rotating freely. The output end of the reduction motor 3 is connected to the driving shaft 301 through a coupling transmission, and the driving shaft 301 is fixed to the central axis of the large turntable 4. [Explanation] The reduction motor 3 works relatively stably. When it works, the large turntable 4 can be controlled to rotate stably through the driving shaft 301. When the entire pillow changing machine is working, the reduction motor 3 controls the large turntable 4 to rotate, which is convenient for the subsequent deployment of the large linear module 6. When the pillow changing machine is not working, the reduction motor controls the large turntable 4 to return to the initial angle, hiding the large linear module 6 under the large turntable 4, thereby reducing the collision volume of the pillow changing machine.

[0044] Two limit sliding brackets 5 are fixedly installed at the bottom end of the large turntable 4. The two limit sliding brackets 5 are centrally symmetrically arranged with the axis of the large turntable 4 as the center. [Explanation] The two limit sliding brackets 5 operate asynchronously.

[0045] Each limited sliding bracket 5 is slidably connected to a large linear module 6, and two sliders 601 are arranged on the guide rail of the large linear module 6. The two sliders 601 slide synchronously. [Explanation] The distance between the two sliders 601 remains unchanged. When the two large linear modules 6 are unfolded, the operating range of the pillow changing machine can be increased.

[0046] A No. 1 manipulator 7 is fixedly installed on each slider 601, and a clamp 701 is fixedly installed on the execution end of the No. 1 manipulator 7. [Explanation] The two large linear modules 6 are unfolded separately, wherein the No. 1 manipulator 7 on the first large linear module 6 cooperates with the clamp 701 to complete the operation process of clamping, moving and placing the old sleeper in the area that does not affect the rail, and the No. 1 manipulator 7 on the second large linear module 6 cooperates with the clamp 701 to complete the operation process of clamping, moving and placing the new sleeper under the rail.

[0047] Two No. 2 manipulators 8 are fixedly installed on the railway track traveling vehicle 1, and a stone-clearing scraper 801 is fixedly installed at the execution end of each No. 2 manipulator 8. [Explanation] The No. 2 manipulator 8 cooperates with the stone-clearing scraper 801 to scrape away the gravel under the old sleepers when removing the old sleepers. After the new sleepers are installed, the gravel can be pushed back to the bottom of the new sleepers.

[0048] The limited sliding bracket 5 includes two load-bearing steel plates 501, which are arranged in parallel and fixed on both sides of the bottom end surface of the large turntable 4 respectively. [Explanation] The load-bearing steel plates 501 have good load-bearing performance.

[0049] Two round bar rails 502 are fixedly installed between the two load-bearing steel plates 501, and the large linear module 6 slides along the round bar rails 502. [Explanation] The length of the round bar rails 502 determines the moving range of the large linear module 6, and the direction of the round bar rails 502 determines the moving direction of the large linear module 6.

[0050] See also Figure 1 , Figure 2 , Figure 3 Specifically, the railway track traveling vehicle 1 is composed of a front car body 101, a rear car body 102 and a steel structure frame 103. The front car body 101 is fixed to one end of the steel structure frame 103, and the rear car body 102 is fixed to the other end of the steel structure frame 103.

[0051] [Explanation] Both the front car body 101 and the rear car body 102 are equipped with train wheels with brakes, and the rear car body 102 is equipped with a driving system for driving the train wheels to achieve the forward, backward or brake stop of the railway track traveling vehicle 1.

[0052] The steel structure skeleton 103 is a hollow structure, which can greatly reduce the material of the railway track traveling vehicle 1, and at the same time, provide more space. After the large linear module 6 is folded, this type of space can be used to store the large linear module 6.

[0053] Specifically, the disc-shaped base 2 is fixedly installed at the center position of the steel structure frame 103. [Explanation] When the large linear module 6 is rotated and stored under the disc-shaped base 2, the storage space can be maximized.

[0054] Two side anti-collision brackets 1031 are arranged in the middle of the steel structure frame 103 , and the two side anti-collision brackets 1031 are respectively located on both sides of the disc-shaped base 2 .

[0055] [Explanation] The side anti-collision bracket 1031 is improved to improve the anti-collision protection capability of the disc-shaped base 2 and the structure connected thereto.

[0056] See also Figure 1 , Figure 2 , Figure 4 , Figure 5 Specifically, a mounting bracket 602 is fixedly provided on the side and top of the large linear module 6 , and a sliding hole 6021 is opened on the mounting bracket 602 . There are two sliding holes 6021 , and the mounting bracket 602 slides on the two round rod rails 502 through the two sliding holes 6021 .

[0057] [Explanation] The slide hole 6021 cooperates with the round rod track 502 to ensure the stability of the large linear module 6 activities.

[0058] Specifically, two oil cylinders 401 are fixedly installed below the large turntable 4 . The two oil cylinders 401 are centrally symmetrically arranged with the axis of the large turntable 4 as the center. The output shafts of the oil cylinders 401 are fixed to the side of the mounting bracket 602 .

[0059] [Description] The two cylinders 401 work in conjunction with the two limited sliding brackets 5 respectively. The cylinder 401 is a power device that can accurately control the movement of the mounting bracket 602, and then accurately control the movement of the large linear module 6 connected to the mounting bracket 602. The two cylinders 401 work in conjunction to achieve the expansion or contraction of the two large linear modules 6.

[0060] Specifically, a through hole 5011 is opened on the load-bearing steel plate 501 close to the oil cylinder 401 . The aperture of the through hole 5011 is larger than the diameter of the output shaft of the oil cylinder 401 . The output shaft of the oil cylinder 401 passes through the through hole 5011 and is connected to the outer side of the mounting bracket 602 .

[0061] [Explanation] Placing the oil cylinder 401 on the outer side of the load-bearing steel plate 501 can prevent the large linear module 6 from colliding with the oil cylinder 401 when moving, thereby ensuring the safety of the entire device during operation.

[0062] Specifically, when the two large linear modules 6 are in a fully extended state, the maximum operating distance thereof is not less than twice the width of the rail, and when the two large linear modules 6 are in a fully closed state, the maximum operating distance thereof is not less than the width of the rail.

[0063] [Explanation] When the two large linear modules 6 are fully unfolded, one of the large linear modules 6 cooperates with the No. 1 manipulator 7 and the clamp 701 to clamp the old sleeper in the rail, and then the old sleeper is moved to the outside of the rail through the work of the large linear module 6.

[0064] Then, another large linear module 6 cooperates with the No. 1 robot 7 and the clamp 701 to clamp the new sleeper on the other outer side of the rail, and then through the work of the large linear module 6, the new sleeper is moved into the rail and placed.

[0065] See also Figure 1 , Figure 2 , Figure 6 Specifically, when the No. 1 robot 7 is folded, the height of the corresponding clamp 701 below the No. 1 robot 7 is higher than the height of the No. 2 robot 8 and the stone-cleaning scraper 801.

[0066] [Explanation] Manipulator No. 1 7 cooperates with fixture 701 to move the sleeper, and manipulator No. 2 8 cooperates with stone-clearing scraper 801 to handle the gravel under the sleeper. Controlling the operating height of the two groups of structures can avoid mutual interference during the process and ensure the smooth progress of the operation.

[0067] Specifically, the width of the stone-cleaning scraper 801 is smaller than the width of the rail, and the No. 1 robot 7 and the No. 2 robot 8 can turn and move freely.

[0068] [Explanation] Avoid collision between the stone-cleaning scraper 801 and the rails, thereby avoiding damage to the stone-cleaning scraper 801 or damage to the rails.

[0069] The reduction motor 3, the oil cylinder 401, the No. 1 manipulator 7 and the No. 2 manipulator 8 can be controlled by the same set of programs to realize the automatic operation of the pillow changing machine, which can further improve the operating efficiency of the pillow changing machine.

[0070] A positioning laser can be installed below the disc-shaped base 2 to facilitate the railway track traveling vehicle 1 to correspond to the sleeper that needs to be replaced.

[0071] Working principle:

[0072] When the railway sleeper replacement operation is required, the entire sleeper replacement is moved to the rail by a forklift, and the wheels of the railway track traveling vehicle 1 are aligned with the rail.

[0073] Before operation, the reduction motor 3 controls the large turntable 4 to rotate 90° through the drive shaft 301, and then the two cylinders 401 respectively control the corresponding large linear modules 6 to slide along the limited sliding bracket 5 until the two large linear modules 6 are fully unfolded, and then the driving system of the rear car body 102 drives the entire railway track traveling vehicle 1 to move.

[0074] When locating the position of the sleeper to be replaced, the disc-shaped base 2 is above the sleeper. At this time, the railway track traveling vehicle 1 brakes, and then the No. 2 manipulator 8 cooperates with the stone-cleaning scraper 801 to clean the gravel under the old sleeper to be replaced. After the cleaning is completed, the two No. 1 manipulators 7 on the first large linear module 6 cooperate with the corresponding clamps 701 to clamp the old sleeper, take it out, and move it. When one of the two No. 1 manipulators 7 approaches the edge of the rail, the clamp 701 on the No. 1 manipulator 7 is released, and the height is raised, and it continues to move in the same direction until the No. 1 manipulator 7 is away from the rail. Then, the clamp 701 on the No. 1 manipulator 7 is used to clamp the old rail, and the clamp 701 on the other No. 1 manipulator 7 is controlled to release. Then, the first No. 1 manipulator 7 controls the movement of the old rail and finally places it next to the rail for recycling. This process is the removal operation of the old sleeper.

[0075] Then, the two No. 1 manipulators 7 on the second large linear module 6 cooperate with the corresponding clamps 701 to clamp the new sleeper, move it, and finally place it on the old sleeper. Then, the No. 2 manipulator 8 cooperates with the stone-clearing scraper 801 to push the gravel to the bottom of the new sleeper. This process is the replacement operation of the new sleeper, and the operation process is similar to the removal operation process of the old sleeper.

[0076] The sleeper changing process can be completed by removing the old sleepers and replacing them with new ones, and the whole process can be observed by the operator beside the sleeper changing machine, which expands the operator's operating field of view. At the same time, since the sleeper changing machine saves the operator's working space, the material cost of the sleeper changing machine is greatly reduced, which improves the practicability of the sleeper changing machine in actual operations.

Claims

1. A multifunctional sleeper changing machine, comprising a railway track traveling vehicle (1), the railway track traveling vehicle (1) traveling on a railway track, a disc-shaped base (2) being fixedly mounted on the railway track traveling vehicle (1), characterized in that: A reduction motor (3) is fixedly mounted on the top of the disc-shaped base (2), and a large turntable (4) is mounted on the bottom of the disc-shaped base (2). The large turntable (4) and the disc-shaped base (2) cannot be separated, and the large turntable (4) keeps free rotation. The output end of the reduction motor (3) is connected to a drive shaft (301) through a coupling transmission. The drive shaft (301) is fixed to the central axis of the large turntable (4). Two limit sliding brackets (5) are fixedly mounted on the bottom of the large turntable (4). The two limit sliding brackets (5) are arranged in a slanted manner with the axis of the large turntable (4) as the center. The large linear module (6) is slidably connected to each limited sliding bracket (5), two sliders (601) are arranged on the guide rail of the large linear module (6), the two sliders (601) slide synchronously, each slider (601) is fixedly mounted with a No. 1 manipulator (7), the execution end of the No. 1 manipulator (7) is fixedly mounted with a clamp (701), and two No. 2 manipulators (8) are fixedly mounted on the railway track traveling vehicle (1), and the execution end of each No. 2 manipulator (8) is fixedly mounted with a stone cleaning scraper (801); The limited sliding bracket (5) comprises two load-bearing steel plates (501), which are arranged in parallel and respectively fixed to two sides of the bottom end surface of the large turntable (4), and two round rod tracks (502) are fixedly installed between the two load-bearing steel plates (501), and the large linear module (6) slides along the round rod tracks (502).

2. The multifunctional pillow changing machine according to claim 1, characterized in that: The railway track traveling vehicle (1) is composed of a front vehicle body (101), a rear vehicle body (102) and a steel structure frame (103); the front vehicle body (101) is fixed to one end of the steel structure frame (103), and the rear vehicle body (102) is fixed to the other end of the steel structure frame (103).

3. The multifunctional pillow changing machine according to claim 1, characterized in that: The disc-shaped base (2) is fixedly mounted at the center of the steel structure frame (103); two side anti-collision brackets (1031) are arranged in the middle of the steel structure frame (103); the two side anti-collision brackets (1031) are respectively located on both sides of the disc-shaped base (2).

4. The multifunctional pillow changing machine according to claim 1, characterized in that: The side and top of the large linear module (6) are fixedly provided with mounting brackets (602), and the mounting bracket (602) is provided with two sliding holes (6021). The mounting bracket (602) slides on the two round rod rails (502) through the two sliding holes (6021).

5. The multifunctional pillow changing machine according to claim 4, characterized in that: Two oil cylinders (401) are fixedly installed below the large turntable (4). The two oil cylinders (401) are centrally symmetrically arranged with the axis of the large turntable (4) as the center. The output shafts of the oil cylinders (401) are fixed to the side of the mounting bracket (602).

6. The multifunctional pillow changing machine according to claim 5, characterized in that: A through hole (5011) is provided on the load-bearing steel plate (501) near the oil cylinder (401). The diameter of the through hole (5011) is larger than the diameter of the output shaft of the oil cylinder (401). The output shaft of the oil cylinder (401) passes through the through hole (5011) and is connected to the outer side surface of the mounting bracket (602).

7. The multifunctional pillow changing machine according to claim 1, characterized in that: When the two large linear modules (6) are in a fully extended state, their maximum operating distance is not less than twice the width of the railroad track; when the two large linear modules (6) are in a fully closed state, their maximum operating distance is not less than the width of the railroad track.

8. The multifunctional pillow changing machine according to claim 1, characterized in that: When the No. 1 manipulator (7) is folded, the height of the corresponding clamp (701) below the No. 1 manipulator (7) is higher than the height of the No. 2 manipulator (8) and the stone-cleaning scraper (801).

9. The multifunctional pillow changing machine according to claim 1, characterized in that: The width of the stone-cleaning scraper (801) is smaller than the width of the rail, and the first manipulator (7) and the second manipulator (8) can both turn and move freely.

Citation Information

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