Self-powered steel rail stress relief rail collision tackle and using method thereof

Abstract

The invention relates to the technical field of steel rail stress relief operation, and provides a self-powered steel rail stress relief rail collision tackle and a using method thereof. The rail collision pulley mainly comprises a rail collision pulley body, a power module and a rail collision pulley fixing module, the rail collision pulley body is a frame composed of side plates, a cover plate and a fixing block, and a collision block is arranged at the front end of the rail collision pulley body; a servo motor, a belt transmission mechanism and a profiling wheel set are arranged in the power module, and the pulley is driven to automatically advance along a steel rail; the fixing module is attached to the rail web of the steel rail through the guide wheel set pressed by the spring, and a soft locking anti-derailing structure is formed. Automation of rail collision operation is achieved through self-contained power, a traditional manual traction mode is replaced, and labor intensity and personnel requirements are remarkably reduced; meanwhile, the operation safety is effectively improved through the soft locking device, the risk that the tackle falls off the rail in the collision process is avoided, and the efficiency and reliability of steel rail stress relief operation are improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of rail stress relief operation, in particular to a self-powered rail stress relief ramming trolley and a use method thereof. BACKGROUND

[0002] The seamless track can effectively improve the riding comfort of passengers and is widely used in urban rail transit. In the common seamless track, the rail is directly fixed on the track bed plate by rail fastenings, and cannot freely expand with the change of external temperature. When the real-time rail temperature is different from the locked rail temperature, temperature stress will be generated in the rail, which increases with the difference. In order to control the rail temperature stress within a fixed range and avoid rail expansion in summer and rail breakage in winter, rail stress relief operation needs to be carried out regularly.

[0003] The existing rail stress relief operation mode selects "drum method" or "rail stretcher drum method" according to the actual operation temperature. The core process of the above operation method is to carry out operation at the free end of the rail, and repeatedly hit the ramming device module fixed on the rail by using the ramming trolley. The current operation is subject to equipment and existing line environment. The ramming trolley is mostly manually driven, and 6-8 people are needed to use a rope to pull the ramming trolley for single operation. At the same time, in order to ensure the quality of stress relief operation, the weight of the ramming trolley itself is relatively high, mostly more than 100 kg. Due to the high center of the ramming trolley, an additional operator is needed to control the center of gravity of the ramming trolley during operation to avoid the problem of falling out of the rail.

[0004] Chinese patent CN118621636A discloses a stress relief operation ramming device for fast scene switching. The device connects the ramming device and the ramming trolley into one body through a hydraulic cylinder, and uses hydraulic power to replace manpower for impact. Although this scheme reduces the demand for manpower, its power source depends on an external hydraulic system, making the overall structure complex, bulky, and the scene switching and installation on the rail still not convenient enough.

[0005] Chinese patent CN119392550A discloses a self-powered rail stress relief operation device and method for impacting the rail waist. The scheme provides a device with a self-powered module. The power module pushes an independent ramming trolley for operation through a damping connection device. This design realizes the self-provision of power, but the split structure of the power module pushing the trolley leads to a long force transmission chain and low energy efficiency. In addition, under complex line conditions, the stability and safety of the split structure still have room for improvement.

[0006] In summary, the existing manual rail stress relief operation device cannot meet the current urban rail transit maintenance operation intensity and mechanization demand. SUMMARY

[0007] To help solve the above technical problems, the application provides a self-powered rail stress dispersion collision rail trolley and a use method thereof.

[0008] In a first aspect, the application provides a self-powered rail stress dispersion collision rail trolley, which adopts the following technical solution: A self-powered rail stress dispersion collision rail trolley, comprising: A collision rail trolley main body, comprising a trolley structure and a collision block arranged at the front end of the trolley structure; A power module integrated in the interior of the collision rail trolley main body, used for driving the collision rail trolley to travel along the rail; and At least two collision rail trolley fixing modules symmetrically arranged at the two sides of the collision rail trolley main body; The collision rail trolley fixing module comprises a connecting rod, a wheel set and an elastic element, one end of the connecting rod is hinged to the trolley structure, the wheel set is installed at the other end of the connecting rod, and the elastic element acts on the connecting rod or the wheel set, so that the wheel set is continuously and elastically pressed against the rail waist part during the operation of the collision rail trolley.

[0009] Preferably, the trolley structure comprises two inverted U-shaped side plates and a top cover plate, and a fixed block on the side facing the rail is connected with the collision block.

[0010] Preferably, the power module is accommodated in the collision rail trolley main body, and the power module comprises a servo motor, a trolley wheel set and a transmission module; the servo motor is arranged on a circular hole opened in the middle of the inverted U-shaped side plate; the trolley wheel set comprises a driving wheel and a driven wheel, the rolling surfaces of the driving wheel and the driven wheel are matched with the rail top profile and are supported on the rail top in rolling mode; the transmission module is a belt transmission structure, a driving belt pulley of the transmission module is installed on the output shaft of the servo motor, a driven belt pulley of the transmission module is installed on the wheel shaft of the driving wheel, and a belt is sleeved on the driving belt pulley and the driven belt pulley.

[0011] Preferably, the collision rail trolley fixing module comprises a connecting rod and a guide wheel set, the connecting rod comprises a limiting section and an elastic section, a limiting rod is arranged on one side of the limiting section in the radial direction perpendicular to the connecting rod, the limiting rod is hinged to the collision rail trolley main body through connecting holes opened at the two ends of the bottom of the inverted U-shaped side plate, an elastic element is sleeved on the elastic section and connected with the guide wheel set, and the elastic element applies an elastic force to the connecting rod, so that the guide wheel set is pressed against the rail waist part.

[0012] Preferably, the fixed block on the side facing the rail is a front fixed block, and a shock-absorbing pad is arranged between the front fixed block and the collision block.

[0013] Preferably, the power module further comprises a counterweight, which is arranged inside the vehicle body on the side opposite to the transmission module.

[0014] Preferably, the limiting rod of the connecting rod is hingedly connected with the connecting hole formed in the inverted U-shaped side plate, and the length of the limiting rod is greater than the diameter of the connecting hole.

[0015] Preferably, a semicircular groove is further formed in the inverted U-shaped side plate, and the semicircular groove is matched with a U-shaped connecting block to mount and fix the bearing of the vehicle body wheel set.

[0016] In the second aspect, the application provides a use method of the self-powered rail stress dispersion rail collision trolley, which adopts the following technical scheme. A use method of a self-powered rail stress dispersion rail collision trolley, wherein, based on the self-powered rail stress dispersion rail collision trolley as described in the first aspect, the method comprises the following steps: S1: operating the rail collision trolley fixing module, installing the rail collision trolley main body across the rail, pulling the connecting rod outward to make the two guide wheel sets in opposite positions away from each other, then placing the rail collision trolley main body on the rail, releasing the connecting rod, and resetting the guide wheel sets under the action of the elastic element and pressing the rail waist; S2: inputting rail state parameters, the rail state parameters including real-time rail temperature and locking rail temperature; S3: starting the power module, and driving the vehicle body wheel set by the servo motor through the transmission module, so that the entire rail collision trolley automatically travels along the rail; S4: controlling the traveling rail collision trolley to repeatedly collide the impact block on the rail collision trolley with the rail colliders fixed on the rail to perform rail stress dispersion work; S5: keeping the rail collision trolley fixing module locked on the rail, starting the power module, driving the rail collision trolley to travel along the rail to the next work point, and repeating the impact work step.

[0017] Preferably, it further comprises S6: keeping the rail collision trolley fixing module locked on the rail, starting the power module, driving the rail collision trolley to travel along the rail to the next work point, and repeating the impact work step.

[0018] Compared with the prior art, the application mainly has the following advantages: 1. The rail collision trolley has an automatic power source, which reduces the need for personnel to pull and impact the rail collision trolley in the traditional work link, and effectively reduces the overall work intensity.

[0019] 2. The rail collision trolley is provided with a soft locking device with the rail, avoiding the safety risk of the rail collision trolley falling off the rail during the collision process, and improving the overall operation safety.

[0020] 3. Since the power of the rail collision trolley comes from itself, the collision speed can be adjusted by importing the rail state information from the outside, thereby improving the stress dispersion operation effect. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is an isometric view of a self-powered rail stress dispersion rail collision trolley device; Figure 2 It is a front view of a self-powered rail stress dispersion rail collision trolley device; Figure 3 It is a left view of a self-powered rail stress dispersion rail collision trolley device; Figure 4 It is a right view of a self-powered rail stress dispersion rail collision trolley device; Figure 5 It is a top view of a self-powered rail stress dispersion rail collision trolley device; Figure 6 It is a front view of a self-powered rail stress dispersion rail collision trolley main body; Figure 7 It is a left view of a self-powered rail stress dispersion rail collision trolley main body; Figure 8 It is a top view of a self-powered rail stress dispersion rail collision trolley main body; Figure 9 It is a front view of a self-powered rail stress dispersion rail collision trolley side plate; Figure 10 It is a left view of a self-powered rail stress dispersion rail collision trolley side plate; Figure 11 It is a front view of a rail collision trolley fixing module; Figure 12 It is a left view of a rail collision trolley fixing module; Figure 13 It is a top view of a rail collision trolley fixing module; Figure 14 It is a front view of a trolley main body (without cover plate) for installing a rail collision trolley power module; Figure 15 It is a left view of a trolley main body (without cover plate) for installing a rail collision trolley power module; Figure 16 It is a right view of a trolley main body (without cover plate) for installing a rail collision trolley power module; Figure 17 It is a top view of a trolley main body (without cover plate) for installing a rail collision trolley power module; Figure 18 Front view of transmission structure of rail collision trolley power module.

[0022] Reference signs: 1-1 rail collision trolley main body; 1-2 power module; 1-3 rail collision trolley fixing module; 1-4 rail; 2-1 side plate; 2-2 cover plate; 2-3 front fixing block; 2-4 rear fixing block; 2-5 damping pad; 2-6 impact block; 2-7 U-shaped connecting block; 4-1 connecting rod; 4-2 guide wheel set; 4-3 spring; 5-1 trolley wheel set; 5-2 servo motor; 5-3 transmission module; 5-4 bearing; 5-5 counterweight module; 6-1 driving wheel; 6-2 driven wheel; 6-3 belt. DETAILED DESCRIPTION

[0023] The structure and principles of the present application will be further described below in conjunction with the drawings, which are very clear to those skilled in the art. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0024] The rail collision trolley with power of the present application comprises: The rail collision trolley main body 1-1 is composed of a frame formed by two inverted U-shaped side plates 2-1, a cover plate 2-2, and a front fixing block 2-3 and a rear fixing block 2-4 connected together, and an impact block 2-6 is connected to the fixing block 2-3 on the side facing the rail 1-4; The power module 1-2 is accommodated in the rail collision trolley main body 1-1, and the power module 1-2 comprises a servo motor 5-2, a trolley wheel set 5-1, and a transmission module 5-3; the servo motor 5-2 is arranged on a circular hole formed in the middle of the inverted U-shaped side plate 2-1; the trolley wheel set 5-1 comprises a driving wheel 6-1 and a driven wheel 6-2, the rolling surfaces of the driving wheel 6-1 and the driven wheel 6-2 are matched with the rail top profile of the rail 1-4, and the driving wheel 6-1 and the driven wheel 6-2 are rolling supported on the rail top of the rail 1-4; the transmission module 5-3 is a belt transmission structure, a driving belt pulley of the transmission module 5-3 is installed on the output shaft of the servo motor 5-2, a driven belt pulley of the transmission module 5-3 is installed on the wheel shaft of the driving wheel 6-1, and a belt 6-3 is sleeved on the driving belt pulley and the driven belt pulley; The rail collision trolley fixing module 1-3 comprises a connecting rod 4-1 and a guide wheel set 4-2, the connecting rod 4-1 comprises a limiting section and a spring section, and in the embodiment of the present application, the elastic element is a spring. A limiting rod is arranged radially on one side of the connecting rod 4-1, the limiting rod is hinged to the rail collision trolley main body 1-1 through connecting holes formed at both ends of the bottom of the inverted U-shaped side plate 2-1, a spring 4-3 is sleeved on the spring section and connected to the guide wheel set 4-2, and the spring 4-3 applies an elastic force to the connecting rod 4-1, so that the guide wheel set 4-2 is pressed tightly on the rail waist of the rail 1-4.

[0025] In the embodiment of the present application, the fixing block facing the side of the steel rail 1-4 direction is the front fixing block 2-3, and a shock pad 2-5 is arranged between the front fixing block 2-3 and the impact block 2-6. The power module 1-2 further comprises a counterweight 5-5 arranged on the other side of the vehicle body opposite to the transmission module 5-3. The number of the rail impact trolley fixing module 1-3 is four, which is symmetrically connected at the two ends of the bottom of the two inverted U-shaped side plates 2-1.

[0026] In addition, the limiting rod of the connecting rod 4-1 is hingedly connected with the connecting hole arranged on the inverted U-shaped side plate 2-1, and the length of the limiting rod is greater than the hole diameter of the connecting hole. A semicircular groove is further arranged on the inverted U-shaped side plate 2-1, which cooperates with a U-shaped connecting block 2-7 to fix and install the bearing 5-4 of the vehicle body wheel set 5-1. The shock pad 2-5 is a square rubber member, and the impact block 2-6 is a square metal member.

[0027] The rail impact trolley device with power of the present application is divided into three parts, and the present application is also divided into three parts, which are the rail impact trolley main body 1-1, the rail impact trolley power module 1-2 and the rail impact trolley fixing module 1-3.

[0028] The rail impact trolley main body 1-1 is divided into two parts, which are the vehicle body structure and the auxiliary accessory.

[0029] The vehicle body structure is formed by two side plates 2-1, one cover plate 2-2, one front fixing block 2-3 and one rear fixing block 2-4 which are fixed and connected by bolts.

[0030] The cover plate 2-2, the front fixing block 2-3 and the rear fixing block 2-4 are all square metal members, which are all provided with countersunk holes and internal threads for connection and fixation.

[0031] The side plate 2-1 is a “door” type metal member, the two feet of which are used to connect with the rail impact trolley fixing module 1-3, and a circular hole is arranged in the middle part for connecting the servo motor 5-2 and the transmission module 5-3 in the power module 1-2. A semicircular groove is arranged on about one fourth of the two sides, which cooperates with the connecting block 2-7 to fix the bearing 5-4 in the power module 1-2, so that the vehicle body can normally operate.

[0032] The auxiliary accessory includes the shock pad 2-5, the impact block 2-6 and the connecting block 2-7.

[0033] The shock pad 2-5 is a square rubber structure, which is used to connect the impact block 2-6 and the front fixing block 2-3 to ensure that the force transmitted to the rail impact trolley main body 1-1 during repeated impact of the rail impact device is reduced.

[0034] Wherein the impact block 2-6 is a square metal structure, used to repeatedly hit the rail impactor to develop rail 1-4 stress dispersion and locking control operation.

[0035] Wherein the connecting block 2-7 is a concave metal piece with two through holes, used to fix the power structure bearing 5-4 part together with the side plate 2-1.

[0036] Wherein the rail impactor power module 1-2 contains the vehicle wheel set 5-1, servo motor 5-2, transmission module 5-3, bearing 5-4 and counterweight module 5-5.

[0037] Wherein the vehicle wheel set 5-1 is divided into driven wheel 6-2 and driving wheel 6-1, both of which are H-shaped wheel sets, adopting the profiling structure design on the top of the rail 1-4, directly riding on the rail 1-4 during operation.

[0038] Wherein the servo motor 5-2 is a common brushless DC motor, which provides power to the driving wheel 6-1 through the transmission module 5-3. The whole device is fixed on the two side plates 2-1 by bolts, and the transmission module 5-3 is connected through the through hole on the side plate 2-1.

[0039] Wherein the transmission module 5-3 is a belt transmission structure, arranged on the right side of the vehicle body. The belt structure driving wheel is connected to the rotating shaft of the servo motor 5-2, and the belt structure driving wheel is connected to the rail impactor wheel set driving wheel 6-1. The power is transmitted from the belt structure driving wheel to the belt structure driving wheel by the belt 6-3. The whole device moves forward or backward along the rail 1-4.

[0040] Wherein the counterweight 5-5 is a metal structure arranged on the left side of the vehicle body, which balances the weight of the belt transmission structure arranged on the right side of the vehicle body, so that the vehicle body keeps balance when riding on the rail 1-4.

[0041] Wherein the rail impactor fixing module 1-3 is composed of connecting rod 4-1, wheel set 4-2 and spring 4-3. It is connected with the side plate 2-1 through the hole at the two feet of the side plate 2-1, and the spring 4-3 structure keeps the fixing module always in contact with the rail 1-4 waist part. A self-powered rail stress dispersion rail impactor is provided with four rail impactor fixing modules 1-3.

[0042] Wherein the connecting rod 4-1 is a rod-shaped metal, one side of which is connected with the door-shaped wheel set 4-2 connecting device, which is fixed with the wheel set 4-2 by bolt structure and keeps the wheel set 4-2 free to move. The round rod part is welded with a metal strip, which keeps the rail impactor fixing module 1-3 from separating from the rail impactor main body 1-1 during operation.

[0043] Specifically, the rail collision trolley body 1-1 is composed of two inverted U-shaped side plates 2-1, a cover plate 2-2, and a front fixed block 2-3 and a rear fixed block 2-4 through bolt connection to form a solid frame structure. The front fixed block 2-3 is located at the front end of the vehicle body and faces the direction of the rail 1-4, and a square metal impact block 2-6 is connected to it through a bolt. A square rubber shock pad 2-5 is arranged between the front fixed block 2-3 and the impact block 2-6 to buffer the impact force transmitted to the vehicle body during the impact process and protect the vehicle body structure.

[0044] The power module 1-2 is contained in the rail collision trolley body 1-1 and includes a servo motor 5-2, a vehicle body wheel set 5-1, a transmission module 5-3, a bearing 5-4, and a counterweight 5-5. The servo motor 5-2 is installed on the circular hole in the middle of the inverted U-shaped side plate 2-1 and is fixed by a bolt. The vehicle body wheel set 5-1 includes a driving wheel 6-1 and a driven wheel 6-2, both of which are designed as type II wheel sets with rolling surfaces matching the rail top profile of the rail 1-4, allowing the vehicle body to stably ride on the rail 1-4. The transmission module 5-3 adopts a belt transmission structure, the driving belt pulley is installed on the output shaft of the servo motor 5-2, the driven belt pulley is installed on the wheel shaft of the driving wheel 6-1, and the power is transmitted to the driving wheel 6-1 through the belt 6-3 to drive the vehicle body to move along the rail 1-4. To balance the weight of the vehicle body, a metal counterweight 5-5 is arranged on the side opposite to the transmission module 5-3 inside the vehicle body to ensure the stability of the vehicle body on the rail 1-4.

[0045] The rail collision trolley fixing module 1-3 includes a connecting rod 4-1 and a guide wheel set 4-2, and the connecting rod 4-1 is divided into a limiting section and a spring section. On one side of the limiting section, a limiting rod is arranged along the radial direction perpendicular to the connecting rod, and the limiting rod is connected to the vehicle body through the connecting holes at both ends of the bottom of the inverted U-shaped side plate 2-1. The length of the limiting rod is greater than the hole diameter of the connecting hole to prevent the fixing module from being separated from the vehicle body. A spring 4-3 is sleeved on the spring section, and the end of the spring 4-3 is connected to the guide wheel set 4-2. The spring 4-3 always applies an elastic force to the connecting rod 4-1, so that the guide wheel set 4-2 is tightly pressed against the rail waist of the rail 1-4, forming a soft lock to prevent the vehicle body from being separated from the rail 1-4 during the impact process. Four sets of rail collision trolley fixing modules 1-3 are arranged on the bottom of the two side plates 2-1 at both ends, ensuring the stability and safety of the vehicle body on the rail 1-4.

[0046] In addition, semicircular grooves are opened at about one-fourth positions of both sides of the inverted U-shaped side plate 2-1, which cooperate with a U-shaped connecting block 2-7 to install and fix the bearing 5-4 of the vehicle body wheel set 5-1, ensuring smooth rotation of the wheel set.

[0047] The present application also provides a use method of the self-powered rail stress dispersion rail collision trolley based on the self-powered rail stress dispersion rail collision trolley as described above, which includes the following steps: S1: operating the rail collision trolley fixing module 1-3, placing the rail collision trolley body 1-1 on the steel rail 1-4, and pressing the rail waist of the steel rail 1-4 by the guide wheel set 4-2 under the elastic force of the spring 4-3; the S1 includes: Pulling the connecting rod 4-1 outward to make the two guide wheel sets 4-2 in opposite positions away from each other, then placing the rail collision trolley body 1-1 on the steel rail 1-4, and releasing the connecting rod 4-1, so that the guide wheel set 4-2 resets and presses the rail waist under the action of the spring 4-3.

[0048] S2: inputting the steel rail 1-4 state parameters into the control module of the rail collision trolley, the steel rail 1-4 state parameters including real-time rail temperature and locking rail temperature; S3: starting the power module 1-2, and driving the vehicle wheel set 5-1 of the rail collision trolley by the servo motor 5-2 through the transmission module 5-3, so that the whole rail collision trolley automatically travels along the steel rail 1-4; S4: controlling the rail collision trolley in travel to repeatedly hit the rail impactor fixed on the steel rail 1-4 by the impact block 2-6 thereon, and performing rail stress dispersion work. S5: keeping the rail collision trolley fixing module 1-3 locked to the steel rail 1-4, starting the power module 1-2, driving the rail collision trolley to travel along the steel rail 1-4 to the next work point, and repeating the impact work step.

[0049] The above method can further include S6: Keeping the rail collision trolley fixing module 1-3 locked to the steel rail 1-4, starting the power module 1-2, driving the rail collision trolley to travel along the steel rail 1-4 to the next work point, and repeating the impact work step.

[0050] Specifically, the method can include: Step one: the work personnel collects the steel rail 1-4 state information according to the stress dispersion work construction requirements, inputs the real-time steel rail 1-4 temperature and the specified steel rail 1-4 locking rail temperature into the self-powered rail stress dispersion rail collision trolley control module, and facilitates the subsequent construction work link.

[0051] Step two: the work personnel operates the connecting rod 4-1 of the rail collision trolley fixing module 1-3, so that the connecting rods 4-1 in opposite positions are away from each other, and the whole device can be straddled on the steel rail 1-4.

[0052] Step three: the operator places the rail collision trolley on the steel rail 1-4, restores the connecting rod 4-1 to the fixed position, ensures that the vehicle wheel set 5-1 part of the four rail collision trolley fixing modules 1-3 can contact the rail waist part of the steel rail 1-4, and the whole device can normally slide along the line direction.

[0053] Step four: the operator slides the whole device to the work point, arranges the rail bender, connects the external power supply or uses the corresponding battery pack module, and starts the rail bender trolley.

[0054] Step five: during the work process, the rail bender trolley will automatically repeatedly impact the rail 1-4 bender module. If the rail 1-4 elongation measurement module is provided, the device can accept the rail 1-4 state information through the Bluetooth module, and the impact work is ended when the elongation of the rail 1-4 at each measurement point is proportional. If there is no corresponding measurement module, the operator needs to accept the information of each manual measurement point and judge whether the work should be stopped. The work is completed by manually stopping.

[0055] Step six: remove the power supply of the device, and move the device along the rail 1-4 or to the other side of the rail 1-4, and then repeat steps three to five to repeat the stress dispersion work process.

[0056] Step seven: the operator adjusts the fixed rod to the far state, lifts the whole device away from the rail 1-4, stores the device for transfer, and waits for the next work.

Claims

1. A self-powered rail stress relief impact rail pulley, characterized in that, include: The main body of the impact trolley includes a car body structure and an impact block disposed at the front end of the car body structure; The power module, integrated inside the main body of the impact rail trolley, is used to drive the impact rail trolley to move along the steel rail; and At least two impact rail trolley fixing modules are symmetrically arranged on both sides of the impact rail trolley body; The rail-collision trolley fixing module includes a connecting rod, a wheel set, and an elastic element. One end of the connecting rod is hinged to the vehicle body structure, and the wheel set is installed at the other end of the connecting rod. The elastic element acts on the connecting rod or the wheel set, so that the wheel set continuously and elastically presses against the web of the rail when the rail-collision trolley is in operation.

2. The self-powered rail stress relief impact rail trolley according to claim 1, characterized in that, The vehicle body structure includes two inverted U-shaped side plates and a top cover plate, with an impact block connected to the fixing block on the side facing the rail.

3. The self-powered rail stress relief impact rail trolley according to claim 1, characterized in that, The power module is housed within the main body of the impact rail trolley. The power module includes a servo motor, a wheel assembly, and a transmission module. The servo motor is mounted on a circular hole in the center of the inverted U-shaped side plate. The wheel assembly includes a driving wheel and a driven wheel. The rolling surfaces of the driving wheel and the driven wheel are adapted to the profile of the rail top and are rolled and supported on the rail top. The transmission module is a belt drive structure. The driving pulley of the transmission module is mounted on the output shaft of the servo motor, and the driven pulley of the transmission module is mounted on the axle of the driving wheel. A belt is fitted over the driving pulley and the driven pulley.

4. The self-powered rail stress relief impact rail trolley according to claim 1, characterized in that, The rail-impact trolley fixing module includes a connecting rod and a guide wheel assembly. The connecting rod includes a limiting section and an elastic section. On one side of the limiting section, a limiting rod is provided in the radial direction perpendicular to the connecting rod. It is hinged to the rail-impact trolley body through the connecting holes opened at both ends of the bottom of the inverted U-shaped side plate. An elastic element is sleeved on the elastic section and connected to the guide wheel assembly. The elastic element applies an elastic force to the connecting rod, causing the guide wheel assembly to press against the web of the rail.

5. A self-powered rail stress relief impact rail trolley according to claim 1, characterized in that, The fixing block facing the rail direction is the front fixing block, and a shock-absorbing pad is provided between the front fixing block and the impact block.

6. A self-powered rail stress relief impact rail trolley according to claim 1, characterized in that, The power module also includes a counterweight, which is located inside the vehicle body on the opposite side from where the transmission module is located.

7. A self-powered rail stress relief impact rail trolley according to claim 1, characterized in that, The limiting rod of the connecting rod is hinged to the connecting hole opened on the inverted U-shaped side plate, and the length of the limiting rod is greater than the diameter of the connecting hole.

8. A self-powered rail stress relief impact rail trolley according to claim 1, characterized in that, The inverted U-shaped side plate is also provided with a semi-circular groove, which cooperates with a U-shaped connecting block for installing and fixing the bearing of the vehicle wheel assembly.

9. A method for using a self-powered rail stress-relieving impact rail pulley, characterized in that, Based on the self-powered rail stress relief impact rail trolley as described in any one of claims 1-8, the process includes the following steps: S1: Operate the rail trolley fixing module, install the rail trolley body across the rail, pull the connecting rod outward to make the two guide wheel groups in opposite positions move away from each other, then place the rail trolley body on the rail, release the connecting rod, and under the action of the elastic element, the guide wheel group resets and presses against the rail web. S2: Input rail status parameters, including real-time rail temperature and locked rail temperature; S3: Start the power module, and the servo motor drives the wheel set of the car body through the transmission module, so that the entire rail-collision trolley moves automatically along the rail; S4: Controls the moving rail-collision trolley, which repeatedly strikes the rail-collision device fixed on the rail with its impact blocks to perform rail stress release operation. S5: Keep the rail-mounted trolley fixed module locked to the rail, start the power module, drive the rail-mounted trolley to travel along the rail to the next working point, and repeat the impact operation steps.

10. The method of using the self-powered rail stress-relieving impact rail pulley according to claim 9, characterized in that, Also includes S6: Keep the impact trolley fixed module locked to the rail, start the power module, drive the impact trolley along the rail to the next working point, and repeat the impact operation steps.

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