Steel rail corrugation removing trolley

Abstract

The utility model relates to the technical field of railway maintenance engineering, and discloses a steel rail corrugation removing trolley which comprises a driving trolley and a driven trolley which are connected with each other, the driving trolley pulls the driven trolley to move forwards or backwards in a reciprocating mode, and the driven trolley is used for bearing a water jet cutter device and an identification system and removing steel rail corrugation. The driving trolley and the driven trolley are both provided with wheel sets which clamp the steel rail upwards from the lower jaw of the steel rail. The movable trolley is used for carrying the water jet cutter device and the recognition device, meanwhile, the contact surfaces of the auxiliary wheels of the driving trolley and the driven wheels of the driven trolley and the steel rail are lower jaws of the steel rail, and the steel rail is clamped up and down, so that vibration and instability caused by the uneven surface of the steel rail are effectively avoided, and the service life of the steel rail is prolonged. The processing accuracy of the water jet device and the recognition device can be improved.

Description

Technical Field

[0001] The utility model relates to the field of railway maintenance engineering, in particular to a rail corrugation removal trolley. Background Art

[0002] A high-speed water stream ejected from a small-diameter hole acts on the material, and the water jet has enough energy to clean, peel and cut the material, so it is referred to as water cutting or commonly known as water jet.

[0003] Rails are the main components of high-speed rail and urban rail transit. Rails are in direct contact with the wheels of trains, and their quality directly affects the safety and stability of driving. After the railway was put into operation, the rails were in a harsh environment for a long time. Due to the dynamic effect of the train, the natural environment and the quality of the rails themselves, the rails often suffered damage, such as cracks and wear, which reduced the life of the rails, increased maintenance workload, increased maintenance costs, and even seriously affected driving safety. Therefore, it is necessary to eliminate and repair the damage to the rails in time to ensure the safety of rail transportation. Rail grinding is an effective means to efficiently eliminate damage and is widely used.

[0004] Prior art 1

[0005] Flame cutting technology: using high temperature flame to cut and trim the rails. This method can quickly remove bumps and defects on the rail surface.

[0006] Defects of prior art 1:

[0007] High temperature flames can easily cause deformation and thermal stress on the rail surface, which may affect the structural strength and service life of the rail. The smoke and harmful gases generated during flame cutting have an impact on the environment and workers' health, requiring additional treatment equipment and measures.

[0008] Prior art 2

[0009] Grinding technology: Using grinding wheels or grinding discs to trim the rail surface can achieve a higher surface flatness.

[0010] Defects of the second prior art:

[0011] The grinding process requires a lot of abrasives, which results in high costs, and a lot of waste is generated after grinding that needs to be disposed of. The grinding process generates a lot of heat, which can easily cause the rail surface to overheat, which may affect the performance and life of the rail.

[0012] In summary, traditional corrugation removal methods are inefficient, costly, and cumbersome to operate. Rail corrugation removal is usually a large-scale task that requires a large amount of finishing work to be completed in a short period of time. Therefore, the water jet technology device needs to have efficient working performance, and be able to improve work efficiency and reduce maintenance costs while ensuring the quality of finishing. The existing water jet technology and identification system both place high demands on the seismic resistance of the trolley. However, the existing trolley does not solve the problem of seismic resistance at a low cost, and does not give full play to the efficient and accurate working characteristics of the water jet technology and identification technology. Summary of the invention

[0013] In order to overcome or alleviate one or more of the above technical problems, the purpose of the utility model is to provide an automatic trolley for removing rail corrugation, which uses a driven trolley to carry a water jet device and an identification device. At the same time, the contact surface between the driven wheel of the driven trolley and the rail is the lower jaw of the rail, which effectively avoids the vibration and instability caused by the uneven surface of the rail, improves the processing accuracy of the water jet device and the identification device, and has a lower cost.

[0014] The utility model provides the following technical solutions:

[0015] A rail corrugation removal trolley comprises an active trolley and a driven trolley connected to each other, and is characterized in that: the active trolley pulls the driven trolley to perform forward or backward reciprocating motion, and the driven trolley is used to carry a water jet device and an identification system to remove rail corrugation; the active trolley and the driven trolley are both provided with a wheel set that clamps the rail from the lower jaw of the rail upward.

[0016] According to some embodiments, the active trolley comprises a left side plate (10), a right side plate (11) and a top plate (9) which are connected to each other, and the three form an inverted U-shaped vehicle body; a stepper motor (8) is provided on the top plate (9), and the stepper motor (8) drives an upper gear (12); the upper gear (12) is transmission-connected to a lower gear (13) below the top plate (9); the lower gear (13) is transmission-connected to a pair of active wheels (20) located on the top surface of the rail via a rotating shaft (19) fixed to the left and right side plates; a supporting rotating shaft (22) is provided on one side of the rotating shaft (19), and the supporting rotating shaft (22) is connected to a pair of supporting wheels (23) located in the vehicle body;

[0017] A plurality of groups of opposing auxiliary wheels (21) are provided at the lower inner sides of the left and right side plates. The auxiliary wheels (21) clamp the rails from the lower jaws of the rails, and the driving wheels (21) and the supporting wheels (23) clamp the rails from the top surfaces of the rails.

[0018] According to some embodiments, the driven trolley comprises a detachable left driven car body (2) and a right driven car body (1), and the left and right driven car bodies are provided with a trolley groove (6) parallel to the rail facing inward and downward, and the front and rear ends of the trolley groove (6) are oppositely fixed with a driven wheel (4) that fits the lower jaw of the rail, and the trolley groove (6) is provided with a groove (7), and the groove (7) is provided with a permanent magnet or an electromagnet, and the permanent magnet or the electromagnet attracts the rail and provides an upward force to the driven trolley, so that the driven wheel (4) and the lower jaw of the rail are in continuous contact.

[0019] According to some embodiments, the combined structure of the left driven vehicle body (2) and the right driven vehicle body (1) is a mortise and tenon structure.

[0020] According to some embodiments, the active trolley is connected to the driven trolley via a curved pipe (16).

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] The present application provides a rail corrugation removal trolley, in which a driven trolley is used to carry a water jet device and an identification device. Meanwhile, the contact surfaces of the auxiliary wheels of the active trolley and the driven wheels of the driven trolley with the rail are the lower jaws of the rail, and both of them clamp the rail up and down, thereby effectively avoiding vibration and instability caused by the uneven surface of the rail, and improving the processing accuracy of the water jet device and the identification device.

[0023] The rail corrugation removal trolley provided in the present application has a simple structure and low cost, provides good shock resistance for the water jet device and the identification device, and is beneficial to improving the work efficiency and work quality of the rail corrugation removal project. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A schematic diagram of an active vehicle provided in an embodiment of the utility model.

[0025] Figure 2 A schematic diagram of a driven trolley provided in an embodiment of the utility model.

[0026] Figure 3 A schematic diagram of a support shaft and a support wheel provided in an embodiment of the utility model.

[0027] In the figure:

[0028] Right driven vehicle body 1; left driven vehicle body 2; mounting hole 3; driven wheel 4; ball bearing 5; trolley groove 6; groove 7; stepper motor 8; top plate 9; left side plate 10; right side plate 11; upper gear 12; lower gear 13; motor bracket 14; bracket through hole 15; elbow 16; elbow through hole 17; lower gear threaded hole 18; rotating shaft 19; driving wheel 20; auxiliary wheel 21; supporting rotating shaft 22; supporting wheel 23. DETAILED DESCRIPTION

[0029] The present invention is described in detail below in conjunction with the embodiments and drawings, but it should be understood that the embodiments and drawings are only used to exemplify the present invention and do not constitute any limitation on the protection scope of the present invention. All reasonable changes and combinations within the scope of the utility model's purpose fall within the protection scope of the present invention.

[0030] The utility model is further described below in conjunction with the accompanying drawings.

[0031] Example 1

[0032] The present embodiment provides a rail corrugation removal trolley, which includes an active trolley for traction, the active trolley pulls the driven trolley to perform forward or backward reciprocating motion, the driven trolley is used to carry the existing water jet device and identification system, the water jet device removes the rail corrugation, the identification system is used to identify the location where the rail corrugation occurs and control the depth that the water jet needs to cut. The water jet device and the identification system are existing technologies and will not be described in detail here.

[0033] The structure of the active car is as follows:

[0034] like Figure 2 The active trolley includes a car body, which includes a left side plate 10, a right side plate 11 and a top plate 9, which are connected to each other to form an inverted U-shaped car body. The inner sides of the left and right side plates are both provided with auxiliary wheels 21 of the active trolley for clamping the rails with the lower jaws of the rails. A pair of active wheels 20 in the car body connected to the rotating shaft 19 is provided with a supporting rotating shaft 22 on one side of the rotating shaft 19, and the supporting rotating shaft 22 is located between the left and right side plates. A pair of supporting wheels 23 are provided on the supporting rotating shaft 22, and the supporting wheels 23 roll on the top surface of the rails to provide stable support for the active trolley.

[0035] The stepper motor 8 is fixed on the body of the active trolley outside the top plate 9 through a motor bracket 14. A bracket through hole 15 is provided at the bottom of the motor bracket 14, and a screw is inserted therein to fix the stepper motor 8. The driving shaft of the stepper motor 8 is connected to the upper gear 12, and the upper gear 12 is transmission-connected to the lower gear 13 provided in the body, and the lower gear 13 is transmission-connected to the driving wheel 20. A pair of driving wheels 20 are located on the inner side of the left and right side plates and on the top surface of the rails on both sides. A plurality of sets of opposing auxiliary wheels 21 are provided below the inner side of the left and right side plates, and the auxiliary wheels 21 are in contact with the lower jaw of the rail.

[0036] A bent pipe 16 is provided on the top of the left and right side panels, and the bent pipe 16 is connected outwardly to the roof of the driven trolley. The rotating shaft 19 is used to connect the driving wheel 20 and the lower gear 13, and the driving wheel 20 is driven to rotate through the lower gear 13, so that the driving wheel 20 is on the top surface of the rail, and the auxiliary wheel 21 clamps the rail from the lower jaw of the rail, thereby controlling the driven trolley to move forward or backward.

[0037] The structure of the driven trolley is as follows:

[0038] like Figure 1 The body of the driven trolley is L-shaped in longitudinal section, and is formed by coupling and splicing the left driven body 2 and the right driven body 1 left and right. A mortise and tenon structure similar to that can be seen in the figure is used to facilitate installation and disassembly on the rail. The roof of the driven trolley body is provided with a mounting hole 3. Screws are inserted into the mounting hole 3 to couple the left driven body 2 and the right driven body 1 left and right. Two bent pipes 16 pass through the bent pipe through hole 17 on the roof of the driving trolley and are connected to the roof of the driven trolley.

[0039] The lower inner part of the left and right driven car bodies are both provided with trolley grooves 6 parallel to the rails, and driven wheels 4 are provided inwardly at both ends of the trolley grooves 6. The driven wheels 4 are in contact with the lower jaw of the rail, and ball bearings 5 ​​are provided in the driven wheels 4. A groove 7 is provided inside the trolley grooves 6, and a permanent magnet is inserted into the groove 7. The permanent magnet attracts the rail to provide an upward force for the trolley, and the driven wheels 4 are in stable contact with the lower jaw of the rail.

[0040] Example 2

[0041] This embodiment provides a rail corrugation removal trolley, in which the active trolley and the driven trolley have the same structure except for the magnets in the groove 7. The difference from Embodiment 1 is that the permanent magnet in the groove can be replaced with an electromagnet to more conveniently control the magnitude of the upward attraction, so that there is no need to adjust the overall mass of the device, and the suspension function can be achieved by simply adjusting the magnitude of the current passing through the electromagnet.

[0042] In this embodiment, an electromagnet is inserted into the groove 7 of the active trolley, and the electromagnet attracts the rail to provide the trolley with an upward force, and the magnitude of the upward magnetic force is controlled by changing the magnetic flux of the electromagnet, so that the top of the driven trolley is just suspended on the upper surface of the rail, thereby avoiding the vibration and friction caused by the corrugation of the rail on the upper surface during the operation of the driven trolley. The driven wheel 4 is in stable contact with the lower jaw of the rail.

[0043] The above embodiments are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A rail corrugation removal trolley, comprising a driving trolley and a driven trolley connected to each other, characterized in that: The active trolley pulls the driven trolley to perform forward or backward reciprocating motion, and the driven trolley is used to carry the water jet device and the identification system to remove the corrugation of the rail; the active trolley and the driven trolley are both provided with a wheel set that clamps the rail from the lower jaw of the rail upward.

2. The rail corrugation removal trolley according to claim 1, characterized in that: The active trolley comprises a left side plate (10), a right side plate (11) and a top plate (9) which are connected to each other, and the three form an inverted U-shaped vehicle body. A stepper motor (8) is provided on the top plate (9), and the stepper motor (8) drives an upper gear (12). The upper gear (12) is transmission-connected to a lower gear (13) below the top plate (9). The lower gear (13) is transmission-connected to a pair of active wheels (20) located on the top surface of the rail through a rotating shaft (19) fixed to the left and right side plates. A supporting rotating shaft (22) is provided on one side of the rotating shaft (19), and the supporting rotating shaft (22) is connected to a pair of supporting wheels (23) located in the vehicle body. A plurality of groups of opposing auxiliary wheels (21) are provided at the lower inner sides of the left and right side plates. The auxiliary wheels (21) clamp the rails from the lower jaws of the rails, and the driving wheels (20) and the supporting wheels (23) clamp the rails from the top surfaces of the rails.

3. The rail corrugation removal trolley according to claim 2, characterized in that: The driven trolley comprises a detachable left driven car body (2) and a right driven car body (1); the left and right driven car bodies are spliced ​​to form an inverted U-shape, and are provided with a trolley concave strip (6) parallel to the steel rail at the inner and lower sides, and driven wheels (4) that are in contact with the lower jaw of the steel rail are fixedly provided at the front and rear ends of the trolley concave strip (6) opposite to each other, and a groove (7) is provided in the trolley concave strip (6), and a permanent magnet or an electromagnet is provided in the groove (7), and the permanent magnet or the electromagnet attracts the steel rail and provides an upward force to the driven trolley, so that the driven wheel (4) and the lower jaw of the steel rail are in continuous contact.

4. The rail corrugation removal trolley according to claim 3, characterized in that: The combined structure of the left driven vehicle body (2) and the right driven vehicle body (1) is a mortise and tenon structure.

5. The rail corrugation removal trolley according to claim 3, characterized in that: The active trolley is connected to the driven trolley via a curved pipe (16).

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