Self-powered steel rail stress relief operation equipment and method for impacting rail web

Abstract

The invention relates to the technical field of rail traffic engineering, in particular to a self-powered steel rail stress relief operation device and method for impacting the rail waist of a steel rail, the device comprises a rail impacting device, the rail impacting device is composed of a rail impacting device body, a limiting block and a limiting bolt, the rail impacting device body is of a concave structure, and the limiting block is arranged on the rail impacting device body; the top face of an inner cavity of the rail collision device body of the concave structure is matched with the top face of a steel rail top in shape, the two limiting blocks are arranged in the inner cavity of the concave structure of the rail collision device body, the side faces of the limiting blocks are matched with the side face of the steel rail top and the waist of the steel rail in shape, and the outer side faces of the limiting blocks are matched with the side wall of the inner cavity of the rail collision device body. The distance between the limiting block and the rail collision device main body is adjusted; the rail collision tackle comprises a tackle body, and a rail collision device pulley and a clamping pulley are installed on the tackle body and matched with a steel rail. The power module comprises a driving motor and a driving wheel set; and one side of the vibration reduction connecting module is connected to the power module through a bolt, and the other side of the vibration reduction connecting module is provided with a screwing fixing structure.

Description

Technical Field

[0001] The invention relates to the technical field of rail transit engineering, and in particular to a self-powered rail stress release operation device and method for impacting the waist of a rail. Background Art

[0002] During the construction and maintenance of urban rail transit, in order to prevent the rails from expanding or breaking due to internal temperature stress, rail stress release operations must be performed according to the design rail temperature and the actual rail temperature. At present, commonly used construction equipment includes rail bumpers and human-powered pulleys. The rail bumper is made of high-strength alloy steel and is fixed to the rail by an inclined iron. The impact pad is tightly attached to the rail head and is connected to the main body of the rail bumper by a hook. The human-powered pulley is a metal structure with a wheel set inside that can move freely along the direction of the rail. During the operation, 4 to 8 operators are required to pull the human-powered pulley to release the internal stress of the rail by repeatedly hitting the rail bumper fixed on the rail.

[0003] In order to ensure the effectiveness of rail stress release, the manpower pulley needs to have a heavy deadweight and requires multiple operators to work together, which makes the operation more intensive and requires higher labor costs. In addition, due to the structural limitations of the rail collision pulley, the impact point is mainly concentrated on the top of the rail. When operating in curved sections, it is also necessary to install additional rail reinforcement devices to prevent the rails from rolling over.

[0004] In view of the technical problems that need to be solved in the prior art, it is now urgent to design a self-powered rail stress release operation equipment and method that impacts the waist of the rail. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a self-powered rail stress relief operation equipment and method for impacting the waist of a rail, so as to realize the stress release operation of repeatedly impacting the rail under electric drive, and enable the rail impacting equipment to run on a single rail by itself, thereby reducing the human participation in the driving force of the impact operation and the human participation in the transfer and transportation of the rail impacting equipment, thereby improving the efficiency of the stress relief operation and improving the integration of the stress relief operation equipment.

[0006] In order to achieve the above-mentioned purpose, a self-powered rail stress release operation equipment for impacting the waist of a rail is designed, comprising: a rail impactor, the rail impactor is composed of a rail impactor body, a limit block and a limit bolt, the rail impactor body is a concave structure for riding on the rail, the top surface of the inner cavity of the concave structure rail impactor body matches the shape of the top surface of the rail, two limit blocks are arranged in the inner cavity of the concave structure of the rail impactor body, the inner side surfaces of the two limit blocks match the top side surface of the rail and the waist of the rail, the outer side surfaces of the two limit blocks match the side walls of the inner cavity of the rail impactor body, the limit bolt passes through the rail impactor body, and the limit blocks are adjusted to the position of the limit blocks and the waist of the rail. The spacing between the rail impactor bodies enables the limit blocks to tighten the rails, so that the rail impactor can transmit the impact force of the rail impact pulley to the waist of the rail during the stress release operation; the rail impact pulley includes a pulley body, on which are mounted a rail impactor pulley and a clamping pulley to cooperate with the rail, and the rail impact pulley can move freely along the direction of the rail; the power module includes a drive motor and a drive wheel set, and the drive wheel set is in direct contact with the top of the rail and is driven by the drive motor; the vibration reduction connection module is connected to the power module by bolts on one side, and a tightening and fixing structure is provided on the other side, which is connected to the pulley body of the rail impact pulley by adjusting the adjusting bolts on three sides.

[0007] Preferably, the device provided by the present invention also includes other technical features, wherein the limit block has a plurality of square grooves on the side close to the rail for reducing the weight of the entire limit block.

[0008] Preferably, the equipment provided by the present invention also includes other technical features, wherein the rail-collision pulley is composed of four parts: a rail-collision pulley, a pulley body connecting piece, a clamping pulley and a pulley body; the pulley body is a long metal structural member, and a plurality of circular holes are opened on the longer side thereof for connecting the rail-collision pulley, and a plurality of semicircular grooves are opened on the same side for placing the clamping pulley, and the two pulley bodies are mirror-symmetrical and connected by the pulley body connecting piece; both ends of the rail-collision pulley are fixed in the holes opened on the pulley body and are evenly arranged along the pulley body so that the rail-collision pulley body can move freely along the direction of the rail; the pulley body connecting piece is a hidden hinge structure, which keeps the pulley body in a parallel state during operation and closes the pulley body during transfer and transportation; the clamping pulley is made of rubber, which is a hollow wheel-shaped structure, placed in the semicircular groove opened on the pulley body, and is used to maintain the relative position between the rail pulley and the rail in the stress release operation link.

[0009] Preferably, the device provided by the present invention also includes other technical features, wherein the drive motor is a servo motor, which provides power for the drive wheel group, and adjusts its own forward and reverse rotation by receiving signals, thereby enabling the power module to move forward or backward along the direction of the rail.

[0010] Preferably, the device provided by the present invention also includes other technical features, including a battery module, which is placed inside the main structure of the power module and is used to power the drive motor. The drive wheel group is a rubber wheel group, which is arranged in a hole opened on the upper side of the power module and directly contacts the top of the rail. It is controlled by the drive motor to push the entire power module to move along the direction of the rail. The power module body is a concave metal component with two holes on the top for placing the drive wheel group, and is connected to the vibration reduction module by bolts.

[0011] The present invention also provides a method for self-powered rail stress relief operation equipment using the aforementioned impact rail waist, comprising the following steps: S1. transporting the equipment to the operation area, and measuring the rail state according to the urban rail transit stress relief operation standard; S2. installing a clamping pulley on the pulley body, placing the rail-impacting pulley on the rail, separating the two pulley bodies by the pulley body connecting piece, and then installing a rail-impacting device pulley between the two pulley bodies to ensure that the rail-impacting device can freely run along the direction of the rail; S3. fixing the vibration-damping connection module to the power module by a bolt fixing structure, placing the connected module on the rail, and completing its fixation with the rail-impacting pulley by adjusting the adjusting bolts on the vibration-damping connection module; S4. testing the power module to ensure that it can drive the rail-impacting pulley to move forward and backward along the direction of the rail; S5. installing the rail-impacting device at a predetermined rail impact point, placing the rail-impacting device body on the rail, and Place a limit block in the gap between the rail waists, install the limit bolts, adjust the positional relationship between the limit block and the rail impactor body, and ensure that the rail impactor is fixed on the rail; S6. Start the power module, transport the pulley body to the operation point, and the operator controls the rail impact pulley to repeatedly impact the rail impactor until the stress release requirement of the rail is met; S7. After completing the single-point operation, release the limit bolts, take out the limit block, release the connection between the rail impactor and the rail and transfer to the next operation point, repeat steps 4-6, and achieve stress release of the same rail; S8. If the transfer operation point is far away, release the connection between the vibration reduction connection module and the rail impact pulley, close the rail impact pulley through the pulley body connector, and transform it into a simple trolley auxiliary equipment for transfer, repeat steps S2-6, and achieve stress release of different rails; S9. After completing all operations, release the connection between the components, and store the rail impactor, rail impact pulley, power module and vibration reduction connection module.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The motor drive replaces the manual drive mode of traditional equipment, effectively reducing the labor intensity and the number of operators required in the operation.

[0013] 2. The impact position of the rail impactor has been optimized and improved, from the traditional impact on the top of the rail to the impact on the waist of the rail on both sides of the rail. This not only improves the stress release effect, but also reduces the number of rail fixing devices required when operating in curved sections.

[0014] 3. The rail-collision trolley can be transformed into a mobile trolley through simple operations, which makes it more convenient for operators to transfer stress relief operation points and also reduces the number of auxiliary machines and tools required during the transfer operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 , isometric drawings of operating equipment; Figure 2 , front view of the operating equipment; Figure 3 , left view of the operating equipment; Figure 4 , right view of the operating equipment; Figure 5 , top view of operating equipment; Figure 6 , front view of the collision device structure; Figure 7 , left view of the rail collision device structure; Figure 8 Front view of the rail-collision pulley structure; Fig. 9 A top view of the rail-collision pulley structure; Fig.10 Right view of the rail-collision pulley structure; Fig.11 Front view of the power module; Fig.12 Top view of the power module; Fig.13 Front view of the vibration reduction connection module; Fig.14 Front view of the pulley body connecting piece; Fig.15 A top view of the pulley body connecting piece; Fig.16 Left view of the pulley body connecting piece; Fig.17 Front view of the rail-collision trolley folded into a simple trolley; Fig.18 Left view of the rail-collision trolley folded into a simple trolley; Fig.19 Bottom view of the rail-collision trolley folded into a simple trolley; In the figure: 1-1 rail impactor, 1-2 rail impact pulley, 1-3 power module, 1-4 vibration reduction connection module, 1-5 rail, 2-1 rail impactor body, 2-2 limit block, 2-3 limit bolt, 3-1 rail impactor pulley, 3-2 pulley body connecting piece, 3-3 clamping pulley, 3-4 pulley body, 4-1 drive motor, 4-2 drive wheel set, 4-3 power module body. DETAILED DESCRIPTION

[0016] In order to make the purpose, principle and structure of the present invention more clear, it is further described below in conjunction with the drawings and specific embodiments.

[0017] Embodiment 1: This embodiment provides a self-powered rail stress release operation device that impacts the rail waist The rail stress release operation equipment designed by the present invention for striking the rail waist is a segmented structure, which is mainly composed of a rail striker 1-1, a rail striker pulley 1-2, a power module 1-3 and a vibration reduction connection module 1-4.

[0018] The rail impactor 1-1 is composed of a rail impactor body 2-1, a limit block 2-2 and a limit bolt 2-3. The rail impactor body 2-1 is a "concave" structural metal component as a whole, which is placed on the rail in a straddle structure, and the remaining rail contact surface is designed to fit the top of the rail. Four through holes are opened on its side for the limit bolt 2-3 to pass through, and threads are set in the through holes.

[0019] The stopper 2-2 is a profiled metal component, and its side close to the rail is a profiled portion of the rail top and the rail waist, and its shape close to the rail bumper 1-1 is consistent with the internal groove of the rail bumper body 2-1. A plurality of square grooves are provided on its side close to the rail to reduce the weight of the overall stopper 2-2.

[0020] The limit bolt 2-3 is a common bolt structure, and is passed through the through hole of the rail impactor body 2-1 to adjust the distance between the limit block 2-2 and the rail impactor body 2-1. By tightening the limit bolt 2-3, the limit block 2-2 tightens the rail, so that the rail impactor 1-1 can effectively transmit the impact force of the rail impact pulley 1-2 to the rail during the stress release operation.

[0021] The rail-collision pulley 1-2 is composed of four parts: a rail-collision device pulley 3-1, a pulley body 3-4, a connecting piece 3-2, a clamping pulley 3-3 and a pulley body 3-4.

[0022] The pulley body 3-4 is a long metal structure, and its longer side has three circular holes for connecting the rail collision pulley 3-1, and the same side also has three semicircular grooves for placing the clamping pulley 3-3. The rail collision pulley 1-2 is provided with two pulley bodies 3-4, the two pulley bodies 3-4 are mirror-symmetrical, and the two pulley bodies 3-4 are connected by the pulley body 3-4 connecting piece 3-2.

[0023] The rail-collision device pulley 3-1 is a metal roller, and its two ends can be fixed in the holes provided on the pulley body 3-4. Three places are evenly arranged along the pulley body 3-4, so that the rail-collision pulley body 3-4 can be placed on the rail and can move freely along the rail direction.

[0024] The connecting piece 3-2 of the pulley body 3-4 is a hidden hinge structure. During the stress release operation of the rail, the internal connecting piece is extended to keep the two pulley bodies 3-4 in a parallel state. When the whole equipment is transferred and transported, the connecting piece is retracted inside it to achieve close contact between the two pulley bodies 3-4, reducing the impact on the equipment transfer.

[0025] The clamping pulley 3-3 is made of rubber and is a hollow wheel structure. It is placed in a semicircular groove of the pulley body 3-4 and is used to maintain the relative position between the rail pulley and the rail during the stress release operation to prevent the pulley from tipping over or falling off the rail. After the rail collision pulley 1-2 is folded, it can also be used as a transport wheel to assist the transfer of the entire equipment.

[0026] The power module 1-3 is composed of a drive motor 4-1, a battery module, a drive wheel set and a main structure of the power module 1-3.

[0027] The driving motor 4-1 is a common servo motor, which provides power for the driving wheel set and adjusts its own forward and reverse rotation by receiving signals, thereby enabling the power module 1-3 to move forward or backward along the direction of the rail.

[0028] The battery module is placed inside the main structure of the power module 1-3 and is used to supply power to the drive motor 4-1.

[0029] The driving wheel set is a rubber wheel set, which is arranged in the hole opened on the upper side of the power module 1-3, and is in direct contact with the top of the rail. It is controlled by the driving motor 4-1 to push the entire power module 1-3 to move along the direction of the rail.

[0030] The main body of the power module 1-3 is a concave metal component with two holes on the top for placing the drive wheel set, and is connected to the vibration reduction module by bolt connection.

[0031] The vibration reduction connection module 1-4 is a vibration reduction rubber pad, one side of which is fixed to the power module 1-3 by bolts. The other side is provided with a tightening fixing structure, which is connected to the pulley body 3-4 of the rail collision pulley by adjusting the adjusting bolts on the three sides.

[0032] Embodiment 2: This embodiment provides a method for using a self-powered rail stress relief operation device that impacts the rail waist. Step 1: The operator transports the entire equipment to the operation area and completes the real-time status measurement of the rails in accordance with the standard requirements of urban rail transit stress relief operations.

[0033] Step 2: Install the clamping pulley 3-3 on the pulley body 3-4, then place the rail-collision pulley 1-2 on the rail, separate the two pulley bodies 3-4 through the pulley body 3-4 connector 3-2, and then install the rail-collision pulley 3-1 between the two rail-collision pulleys. Ensure that the rail-collision can run freely along the direction of the rail.

[0034] Step 3: Fix the vibration-damping connection module 1-4 and the power module 1-3 through a bolt fixing structure, place the connected modules on the rails, and fix the vibration-damping connection module 1-4 to the rail-impacting pulley 1-2 by adjusting the adjusting bolts on the fixing structure.

[0035] Step 4: Test the power module 1-3 to see whether it can drive the rail-impacting pulley 1-2 to move forward and backward along the rail direction.

[0036] Step 5: Install the rail impactor 1-1 at the preset rail impact point, place the rail impactor body 2-1 on the rail, place the limit block 2-2 in the gap between the rail waist, install the limit bolt 2-3, adjust the position relationship between the limit block 2-2 and the rail impactor body 2-1, and ensure that the rail impactor 1-1 is fixed on the rail.

[0037] Step 6: Start the power module 1-3, transport the pulley body 3-4 to the operation point, and the operator controls the rail-impacting pulley 1-2 to repeatedly impact the rail-impacting device 1-1 until the rail stress release operation requirements are met.

[0038] Step 7: After completing the single-point operation, the operator releases the limit bolt 2-3, removes the limit block 2-2, releases the connection between the rail impactor 1-1 and the rail, and transfers it to the next operation point. Repeat steps 4-6 to achieve stress relief operation on the same rail.

[0039] Step 8: If the work point to be transferred is far away, the connection between the vibration reduction connection module 1-4 and the rail collision pulley 1-2 can be released. The rail collision pulley 1-2 is closed through the pulley body 3-4 connecting piece 3-2, so that the rail collision pulley 1-2 is transformed into a simple trolley to assist the overall transfer work. Repeat steps 2-6 to achieve stress release operations for different rails.

[0040] Step 9: After completing all the operations, the operator releases the connections between the components and stores the components according to the rail collision device 1-1, the rail collision pulley 1-2, the power module 1-3 and the vibration reduction connection module 1-4.

[0041] The above description is only a specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solutions and novel concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A self-powered rail stress relief operation device for striking the rail waist, characterized in that: include The rail bumper is composed of a rail bumper body, a limit block and a limit bolt. The rail bumper body is a concave structure for straddling the rail. The inner cavity top surface of the concave structure rail bumper body matches the shape of the top surface of the rail. Two limit blocks are arranged in the inner cavity of the concave structure of the rail bumper body. The inner side surfaces of the two limit blocks match the top side surface of the rail and the waist of the rail. The outer side surfaces of the two limit blocks match the side walls of the inner cavity of the rail bumper body. The limit bolt passes through the rail bumper body. The distance between the limit block and the rail bumper body is adjusted so that the limit block tightens the rail, so that the rail bumper can transmit the impact force of the rail bumper to the waist of the rail during the stress release operation. The rail-collision pulley comprises a pulley body, on which a rail-collision pulley and a clamping pulley are mounted to cooperate with the rails, and the rail-collision pulley can move freely along the direction of the rails; The power module includes a drive motor and a drive wheel set. The drive wheel set is in direct contact with the top of the rail and is driven by the drive motor. The vibration reduction connection module is connected to the power module by bolts on one side, and is provided with a tightening fixing structure on the other side. It is connected to the pulley body of the rail-impacting pulley by adjusting the adjusting bolts on three sides.

2. The self-powered rail stress relief operation device for striking the rail waist as claimed in claim 1, characterized in that: The limit block has a plurality of square grooves on the side close to the rail to reduce the weight of the entire limit block.

3. The self-powered rail stress relief operation device for striking the rail waist as claimed in claim 1, characterized in that: The rail-impacting pulley consists of four parts: a rail-impacting pulley, a pulley body connecting piece, a clamping pulley and a pulley body; the pulley body is a long metal structural piece, and a plurality of circular holes are opened on the longer side thereof for connecting the rail-impacting pulley, and a plurality of semicircular grooves are opened on the same side for placing the clamping pulley, and the two pulley bodies are mirror-symmetrical and connected by the pulley body connecting piece; both ends of the rail-impacting pulley are fixed in the holes opened on the pulley body and are evenly arranged along the pulley body so that the rail-impacting pulley body can move freely along the direction of the rail; the pulley body connecting piece is a hidden hinge structure, which keeps the pulley body in a parallel state during operation and closes the pulley body during transfer and transportation; the clamping pulley is made of rubber, which is a hollow wheel-shaped structure, placed in the semicircular groove opened on the pulley body, and is used to maintain the relative position between the rail pulley and the rail in the stress release operation link.

4. The self-powered rail stress relief operation device for striking the rail waist as claimed in claim 1, characterized in that: The driving motor is a servo motor, which provides power for the driving wheel set and adjusts its forward and reverse rotation by receiving signals, thereby enabling the power module to move forward or backward along the direction of the rail.

5. The self-powered rail stress relief operation device for striking the rail waist as claimed in claim 4, characterized in that: It also includes a battery module, which is placed inside the main structure of the power module and is used to power the drive motor. The drive wheel set is a rubber wheel set, which is arranged in a hole on the upper side of the power module and directly contacts the top of the rail. It is controlled by the drive motor to push the entire power module to move along the direction of the rail. The power module body is a concave metal component with two holes on the top for placing the drive wheel set, and is connected to the vibration reduction module by bolts.

6. A method for using a self-powered rail stress relief device for striking the rail waist as claimed in any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Transport the equipment to the operation area and measure the rail condition according to the urban rail transit stress relief operation standard; S2. Install the clamping pulley on the pulley body, place the rail collision pulley on the rail, separate the two pulley bodies through the pulley body connector, and then install the rail collision pulley between the two pulley bodies to ensure that the rail collision device can run freely along the rail direction; S3. The vibration reduction connection module is fixed to the power module by a bolt fixing structure, the connected module is placed on the rail, and the fixing of the vibration reduction connection module and the collision rail pulley is completed by adjusting the adjusting bolts on the vibration reduction connection module; S4. Test the power module to ensure that it can drive the rail-impacting pulley to move forward and backward along the rail direction; S5. Install the rail striker at the predetermined rail impact point, place the rail striker body on the rail, place a stopper block in the gap between the rail waists, install the stopper bolts, adjust the positional relationship between the stopper block and the rail striker body, and ensure that the rail striker is fixed on the rail; S6. Start the power module and transport the pulley body to the operation point. The operator controls the rail-collision pulley to repeatedly collide with the rail-collision device until the rail stress release requirement is met; S7. After completing the single-point operation, release the limit bolt, remove the limit block, release the connection between the rail impactor and the rail and move to the next operation point, repeat steps 4-6 to achieve stress release on the same rail; S8. If the transfer operation point is far away, release the connection between the vibration reduction connection module and the collision rail pulley, close the collision rail pulley through the pulley body connector, and transform it into a simple trolley auxiliary equipment transfer, repeat steps S2-6, and achieve stress release of different rails; S9. After completing all operations, release the connections between the components and store the rail collision device, rail collision pulley, power module and vibration reduction connection module.

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