A shot blasting machine for railway wagon maintenance

Abstract

The utility model relates to railway freight car maintenance technical field, concretely discloses a kind of shot blasting cleaning machine for railway freight car maintenance, including protective housing, its front surface is equipped with maintenance door plate, the cavity inner wall of protective housing is fixedly connected with support workbench, the inner wall of the cavity of protective housing is equipped with 2 support sliding blocks, the side surface of support sliding block is fixed with filter screen frame, the bottom surface of the cavity of protective housing is provided with scrap collecting box, the rear surface of the cavity of protective housing is provided with recycling opening. The shot blasting cleaning machine for railway freight car maintenance is matched by recycling opening, storage tank and elevator, the pellet after cleaning is filtered by filter screen frame, can enter storage tank along recycling opening, then is transported back to shot blasting machine by elevator for reuse, forms the closed loop of " shot blasting-recovery-reuse", reduces pellet scattering waste, without frequent artificial replenishment, reduces consumable procurement and operation cost.

Description

Technical Field

[0001] This utility model relates to the field of railway freight car maintenance technology, specifically a shot blasting machine for railway freight car repair. Background Technology

[0002] Railway freight cars are vehicles used to carry goods on railways. They come in many varieties and can be classified according to different uses and structures. Open wagons have end and side walls but no roof and are mainly used to transport bulk goods such as coal and ore. They can also be covered with waterproof tarpaulins to transport goods that are susceptible to rain damage. They account for more than 50% of all freight cars. For example, the C70 type open wagon is a representative product of general-purpose open wagons. Flat wagons only have a floor and no side walls, end walls, or roof. They are used to transport long or large goods such as logs, steel, and containers. Some flat wagons are equipped with foldable side and end panels to increase transport flexibility, such as the NX70 type common wagon. Shot blasting machines must be used in the maintenance of railway freight cars. The core reason is to thoroughly remove rust, scale, old paint, and impurities from the surface of key components such as the car body and running gear. This lays the foundation for subsequent maintenance procedures and ultimately ensures the quality of freight car maintenance and driving safety.

[0003] Existing shot blasting machines typically disassemble railway freight car parts and place them inside the device for cleaning. However, the shot produced after the process carries debris and impurities, which can affect subsequent operations and reduce the machine's practicality. Utility Model Content

[0004] The purpose of this utility model is to provide a shot blasting machine for railway freight car maintenance, so as to solve the problem mentioned in the background art that the shot material after the work is accompanied by debris and impurities, which can easily affect the normal operation of subsequent work and reduce its practicality.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a shot blasting machine for railway freight car maintenance, comprising a protective shell, a maintenance door panel installed on its front surface, a support workbench fixedly connected to the inner wall of the cavity of the protective shell, two support sliders installed on the inner wall of the cavity of the protective shell, a filter screen frame fixed on the side surface of the support sliders, a debris collection box provided on the bottom surface of the cavity of the protective shell, a recycling opening provided on the rear surface of the cavity of the protective shell, a storage box fixed on the rear surface of the protective shell, a hoist fixedly installed at the upper end of the storage box, a shot blasting machine penetrating the upper surface of the protective shell, a drive motor fixedly connected to the side surface of the protective shell, first sprockets provided on both sides of the protective shell, a groove provided on the side surface of the support slider, and a transmission cam provided on the inner wall of the groove of the support slider, and a linkage mechanism provided on the rear surface of the protective shell.

[0006] Preferably, the protective shell and the maintenance door panel are rotatably connected, and the upper surfaces on both sides of the support workbench are designed to be inclined.

[0007] By adopting the above technical solution, the inclined surface can guide the shot and debris generated during the shot blasting process to slide naturally to both sides of the worktable, avoiding the accumulation of shot and debris on the worktable surface. This reduces the waste of shot and prevents the accumulated debris from scratching the surface of the parts to be cleaned. At the same time, it ensures that the bottom of the parts can also fully contact the shot, improves the uniformity of cleaning, and ensures that impurities such as rust and old paint layers on the surface of the parts are completely removed.

[0008] Preferably, the support slider and the protective shell are slidably connected, and a spring is connected between the support slider and the protective shell. The surface of the support slider is arc-shaped, and the filter frame is slidably connected to the side surface of the support workbench.

[0009] By adopting the above technical solution, the arc-shaped surface can reduce the contact resistance between the shot, debris and the support slider, prevent impurities from lingering on the surface of the support slider, and the arc-shaped structure fits the curved surface of the inner wall of the protective shell better, improving sliding stability and preventing the support slider from getting stuck during movement.

[0010] Preferably, the recycling opening is connected to the storage box, the elevator is connected to the shot blasting machine, the first sprocket is rotatably connected to the protective shell, and the shaft of one side of the first sprocket is fixedly connected to the output end of the drive motor.

[0011] By adopting the above technical solution, the cleaned shot can flow directly into the storage box through the recycling opening, realizing the centralized collection of shot, avoiding the shot from scattering outside the equipment and causing waste, while reducing the workload of manual shot cleaning and reducing operation and maintenance costs.

[0012] Preferably, the transmission cam and the support slider are rotatably connected, the shaft of the first sprocket passes through the surface of the protective housing, and the shaft of the first sprocket is fixedly connected to the shaft of the transmission cam.

[0013] By adopting the above technical solution, the rotary connection allows the transmission cam to rotate within the groove of the support slider. When the transmission cam rotates, its protruding part can push the support slider to slide along the inner wall of the protective shell, while the arc-shaped profile of the cam ensures that the pushing process is smooth and avoids structural damage caused by sudden changes in force on the support slider. At the same time, the rotary connection reduces frictional loss between the two and extends the service life of the components.

[0014] Preferably, the linkage mechanism includes a support cylinder, which is disposed on the rear surface of the protective shell, and a second sprocket is fixedly connected to both ends of the support cylinder.

[0015] By adopting the above technical solution, the supporting cylinder provides a stable mounting carrier for the second sprocket, ensuring that the two second sprockets can rotate synchronously. The second sprocket, as a linkage intermediary, can connect the first sprockets on both sides of the protective shell, so that the power of the first sprocket on one side can be transmitted to the first sprocket on the other side, realizing the synchronous movement of the transmission cams and support sliders on both sides of the equipment. This avoids the filter frame from tilting or getting stuck due to asynchronous power on both sides, ensuring uniform filtration effect and improving the stability of equipment operation.

[0016] Preferably, the supporting cylinder and the protective shell are rotatably connected, the second sprocket is correspondingly arranged with the first sprocket, and a transmission chain is provided between the outer surface of the second sprocket and the outer surface of the first sprocket.

[0017] By adopting the above technical solution, the rotating connection allows the support cylinder to rotate synchronously with the rotation of the second sprocket, reducing the frictional resistance between the support cylinder and the protective shell, avoiding jamming or component wear caused by the fixed connection, and ensuring smooth operation of the linkage mechanism.

[0018] Compared with the prior art, the beneficial effects of this utility model are: This shot blasting cleaning machine for railway freight car maintenance: 1. Through the cooperation of the recycling opening, storage box and elevator, the cleaned shot is filtered by the filter screen and can enter the storage box through the recycling opening. Then it is transported back to the shot blasting machine by the elevator for reuse, forming a closed loop of "shot blasting-recycling-reuse". This reduces the waste of shot, eliminates the need for frequent manual replenishment, and reduces the cost of consumables procurement and maintenance. 2. The inclined design of the support workbench guides the shot and debris to slide off, preventing accumulation and scratching of the parts to be cleaned. The support slider drives the filter screen frame to slide back and forth, avoiding clogging of the filter holes, ensuring the purity of the shot, preventing impurities from affecting subsequent shot blasting, and ensuring that rust, old paint and other defects on the surface of the parts are thoroughly removed. 3. The protective shell and maintenance door are rotatably connected, which facilitates the removal and placement of parts and internal maintenance; the linkage mechanism realizes the synchronous transmission of power on both sides, avoiding the support slider from getting stuck or tilting, and the drive motor transmits power through sprockets and cams, which simplifies the structure while ensuring stable operation and reducing downtime due to failure. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the connection between the protective shell and the maintenance door panel of this utility model; Figure 2 This is a three-dimensional structural diagram of the connection between the drive motor and the first sprocket of this utility model; Figure 3 This is a three-dimensional structural diagram of the connection between the supporting cylinder and the second sprocket of this utility model; Figure 4 This is a three-dimensional structural diagram of the connection between the support slider and the filter frame of this utility model; Figure 5 This is a three-dimensional structural diagram of the connection between the first sprocket and the transmission cam of this utility model; Figure 6 This is a three-dimensional structural diagram of the connection between the protective shell and the recycling opening of this utility model.

[0020] In the diagram: 1. Protective outer shell; 2. Maintenance door panel; 3. Supporting workbench; 4. Supporting slider; 5. Filter screen frame; 6. Debris collection box; 7. Recycling opening; 8. Storage box; 9. Elevator; 10. Shot blasting machine; 11. Drive motor; 12. First sprocket; 13. Transmission cam; 14. Supporting cylinder; 15. Second sprocket. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-6 This utility model provides a technical solution: a shot blasting machine for railway freight car repair, comprising a protective shell 1, a maintenance door panel 2, a support workbench 3, support sliders 4, a filter screen frame 5, a debris collection box 6, a recovery opening 7, a storage box 8, a hoist 9, a shot blasting machine 10, a drive motor 11, a first sprocket 12, a transmission cam 13, a support cylinder 14, and a second sprocket 15. The protective shell 1 has a maintenance door panel 2 mounted on its front surface. The support workbench 3 is fixedly connected to the inner wall of the cavity of the protective shell 1. Two support sliders 4 are mounted on the inner wall of the cavity of the protective shell 1. The outer shell 1 and the maintenance door 2 are rotatably connected. The upper surfaces of both sides of the support workbench 3 are inclined. The support slider 4 and the protective shell 1 are slidably connected, and a spring is connected between the support slider 4 and the protective shell 1. The surface of the support slider 4 is arc-shaped. The filter frame 5 and the side surface of the support workbench 3 are slidably connected. The operator opens the protective shell 1 through the rotatably connected maintenance door 2, places the parts of the railway freight car to be cleaned on the support workbench 3, closes the maintenance door 2, and starts the equipment. The drive motor 11 starts to run, and its output end drives the first sprocket 12 on one side to rotate.

[0023] A filter screen frame 5 is fixed to the side surface of the supporting slider 4. A debris collection box 6 is provided on the bottom surface of the cavity of the protective shell 1. A recycling opening 7 is opened on the rear surface of the cavity of the protective shell 1. A storage box 8 is fixed to the rear surface of the protective shell 1. A hoist 9 is fixedly installed at the upper end of the storage box 8. A shot blasting machine 10 is installed through the upper surface of the protective shell 1. The recycling opening 7 is connected to the storage box 8. The hoist 9 is connected to the shot blasting machine 10. The first sprocket 12 is rotatably connected to the protective shell 1. The shaft of 12 is fixedly connected to the output end of the drive motor 11. The first sprocket 12 on one side drives the corresponding second sprocket 15 to rotate through the transmission chain. The second sprocket 15 drives the second sprocket 15 on the other side to rotate synchronously through the support cylinder 14, thereby causing the first sprocket 12 on the other side to rotate. The shaft of the first sprocket 12 passes through the protective shell 1, driving the transmission cam 13 to rotate. The transmission cam 13 pushes the support slider 4 to slide along the inner wall of the protective shell 1. The support slider 4 drives the filter frame 5 to slide back and forth along the side surface of the support workbench 3.

[0024] A drive motor 11 is fixedly connected to the side surface of the protective shell 1. A first sprocket 12 is provided on both sides of the protective shell 1. A groove is provided on the side surface of the support slider 4, and a transmission cam 13 is provided on the inner wall of the groove of the support slider 4. The transmission cam 13 and the support slider 4 are rotatably connected. The shaft of the first sprocket 12 passes through the surface of the protective shell 1, and the shaft of the first sprocket 12 is fixedly connected to the shaft of the transmission cam 13. When the shot blasting machine 10 is started, the shot conveyed by the elevator 9 is sprayed at high speed onto the surface of the component on the support worktable 3 to remove rust, old paint and other impurities. During the cleaning process, the shot and impurities slide down the inclined surface of the support worktable 3 to the filter screen frame 5. The filter screen frame 5 reciprocates to achieve screening. After the impurities are intercepted, they fall into the debris collection box 6, and the pure shot passes through the filter screen.

[0025] A linkage mechanism is provided on the rear surface of the protective shell 1. The linkage mechanism includes a support cylinder 14, which is located on the rear surface of the protective shell 1. Both ends of the support cylinder 14 are fixedly connected to second sprockets 15. The support cylinder 14 and the protective shell 1 are rotatably connected. The second sprockets 15 are correspondingly arranged with the first sprockets 12, and a transmission chain is provided between the outer surface of the second sprockets 15 and the outer surface of the first sprockets 12. After passing through the filter screen 5, the pure shot flows along the bottom surface of the cavity of the protective shell 1 to the recovery opening 7. It enters the storage box 8 for temporary storage through the recovery opening 7. The shot in the storage box 8 is then lifted by the elevator 9 and transported to the shot blasting machine 10 to complete the shot circulation. The equipment continues to perform cleaning operations until the parts are cleaned.

[0026] Working Principle: When using this shot blasting machine for railway freight car maintenance, the drive motor 11 drives the first sprocket 12 on one side to rotate. Through the second sprocket 15, the support cylinder 14, and the transmission chain, the first sprockets 12 on both sides rotate synchronously, which in turn drives the transmission cam 13 to rotate. The transmission cam 13 pushes the support slider 4 to slide along the protective shell 1. The support slider 4 drives the filter screen frame 5 to reciprocate along the support worktable 3. The shot blasting machine 10 sprays the shot conveyed by the elevator 9 onto the components on the support worktable 3 to remove impurities. The shot and impurities slide down to the filter screen frame 5 for screening. The impurities enter the debris collection box 6, and the clean shot returns to the storage box 8 through the recovery opening 7, and is then sent back to the shot blasting machine 10 by the elevator 9 for circulation, increasing the overall practicality.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shot blasting machine for railway freight car maintenance, comprising a protective shell (1) and a maintenance door panel (2) mounted on its front surface, characterized in that: The inner wall of the cavity of the protective shell (1) is fixedly connected to a support workbench (3). Two support sliders (4) are installed on the inner wall of the cavity of the protective shell (1). A filter screen frame (5) is fixed on the side surface of the support slider (4). A debris collection box (6) is provided on the bottom surface of the cavity of the protective shell (1). A recycling opening (7) is opened on the rear surface of the cavity of the protective shell (1). A storage box (8) is fixed on the rear surface of the protective shell (1). A hoist (9) is fixedly installed on the upper end of the storage box (8). A shot blasting machine (10) is installed through the upper surface of the protective shell (1). A drive motor (11) is fixedly connected to the side surface of the protective shell (1). A first sprocket (12) is provided on both sides of the protective shell (1). A groove is provided on the side surface of the support slider (4). A transmission cam (13) is provided on the inner wall of the groove of the support slider (4). A linkage mechanism is provided on the rear surface of the protective shell (1).

2. The shot blasting machine for railway freight car maintenance according to claim 1, characterized in that: The protective shell (1) and the maintenance door panel (2) are rotatably connected, and the upper surfaces on both sides of the support workbench (3) are designed to be inclined.

3. The shot blasting machine for railway freight car maintenance according to claim 1, characterized in that: The support slider (4) and the protective shell (1) are connected in a sliding connection, and a spring is connected between the support slider (4) and the protective shell (1). The surface of the support slider (4) is arc-shaped, and the filter frame (5) and the side surface of the support workbench (3) are connected in a sliding connection.

4. The shot blasting machine for railway freight car maintenance according to claim 1, characterized in that: The recycling opening (7) is connected to the storage box (8), the elevator (9) is connected to the shot blasting machine (10), the first sprocket (12) is rotatably connected to the protective shell (1), and the shaft of the first sprocket (12) on one side is fixedly connected to the output end of the drive motor (11).

5. A shot blasting machine for railway freight car maintenance according to claim 1, characterized in that: The transmission cam (13) and the support slider (4) are rotatably connected. The shaft of the first sprocket (12) passes through the surface of the protective shell (1), and the shaft of the first sprocket (12) is fixedly connected to the shaft of the transmission cam (13).

6. A shot blasting machine for railway freight car maintenance according to claim 1, characterized in that: The linkage mechanism includes a support cylinder (14), which is disposed on the rear surface of the protective shell (1), and a second sprocket (15) is fixedly connected to both ends of the support cylinder (14).

7. A shot blasting machine for railway freight car maintenance according to claim 6, characterized in that: The supporting cylinder (14) and the protective shell (1) are rotatably connected. The second sprocket (15) is correspondingly arranged with the first sprocket (12), and a transmission chain is provided between the outer surface of the second sprocket (15) and the outer surface of the first sprocket (12).

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