A high-speed train wheel spraying device

Abstract

The utility model relates to a kind of high-speed rail wheel spraying devices, including the lifting appliance for hoisting workpiece, the lifting appliance includes lifting chain, hook and the hanger assembly for fixing workpiece, the hanger assembly includes the lower seat for supporting in the bottom of workpiece and blocking the lower end of workpiece central hole, the gland being placed on the top of workpiece and blocking the upper end of workpiece central hole and the hanger bar being connected with lower seat and extending into central hole through gland. By the utility model, the area needing to be sprayed is not shielded, full-range dead angle-free spraying is realized, the area not needing to be sprayed is completely shielded and blocked, and the central hole pollution problem is eliminated.

Description

Technical Field

[0001] This utility model relates to the field of high-speed rail wheel production technology, and in particular to a high-speed rail wheel spraying device. Background Technology

[0002] High-speed train wheels are key running gear components of high-speed railway vehicles, and their quality and reliability are crucial to driving safety. To protect the wheels from corrosion, extend their service life, and meet aesthetic requirements, high-performance coatings need to be applied to the wheel surface. Among these, thermosetting powder coatings are widely used due to their excellent mechanical properties and weather resistance.

[0003] High-speed train wheels have a complex structure with multiple three-dimensional surfaces such as flanges, rims, and hubs. Currently, the conventional method for painting high-speed train wheels is to use a standard hook or sling to lift the wheel and place it into the painting booth. However, during painting, the spray gun struggles to cover areas obscured by the lifting equipment, easily creating blind spots. To achieve full-range painting, adjustments to the lifting posture or secondary clamping are required, making the process cumbersome and inefficient. Furthermore, the center hole of the high-speed train wheel is used for precise fitting with the axle; therefore, the inner wall and end face of this hole are non-paintable areas, making it prone to contamination when painted using existing methods. Summary of the Invention

[0004] This utility model addresses the shortcomings of existing technologies by providing a high-speed rail wheel spraying device.

[0005] This utility model is achieved through the following technical solution: a high-speed rail wheel spraying device is provided, including a lifting device for hoisting workpieces. The lifting device includes a chain, a hook, and a hanging assembly for fixing the workpieces. The hanging assembly includes a lower support for supporting the bottom of the workpiece and sealing the lower end of the workpiece's central hole, a pressure cap placed on the top of the workpiece and sealing the upper end of the workpiece's central hole, and a lifting rod that passes through the pressure cap and extends into the central hole and is connected to the lower support.

[0006] Preferably, the lower support includes a lower support plate, a lower blocking plate fixed to the upper surface of the lower support plate and embedded in the central hole, and a connecting nut fixed to the upper surface of the lower blocking plate.

[0007] Preferably, the lower end plate is fixed to the middle of the lower support plate, and the connecting nut is fixed to the middle of the lower end plate. Both the lower support plate and the lower end plate are circular plates.

[0008] Preferably, the pressure cap includes a pressure plate and an upper blocking plate fixed to the lower surface of the pressure plate and embedded in the central hole.

[0009] Preferably, the upper blocking plate is fixed to the middle of the pressure plate, and both the pressure plate and the upper blocking plate are circular plates. A circular through hole for the suspension rod to pass through is provided in the middle of the pressure plate and the upper blocking plate.

[0010] Preferably, the lower part of the boom is threaded, the boom is threaded to the connecting nut, and the top of the boom is provided with a hanging hole for connection with the hook.

[0011] Preferably, a baffle is installed on the rod below the hanging hole. The baffle has a certain limiting effect on the cap to prevent the cap from falling off.

[0012] Preferably, the top of the hook is connected to the bottom of the chain via a connecting seat. Specifically, the top of the hook is rotatably connected to the connecting seat, and the connecting seat is fixed to the bottom of the chain.

[0013] Preferably, it also includes a suspended conveyor for transferring the workpiece and a spray box for spraying the workpiece.

[0014] Preferably, the top of the lifting chain is fixed to the carriage of the overhead conveyor. The overhead conveyor transfers the workpiece on the lifting device from the loading station to the spraying station of the spraying box. After the workpiece is sprayed, it is transferred to the unloading station outside the spraying box.

[0015] Preferably, the spraying box includes a box body and a handheld spray gun installed inside the box body, and the operator operates the handheld spray gun to spray the workpiece.

[0016] Preferably, the overhead conveyor is located above the spraying box, and a channel for the lifting chain to pass through is provided on the top of the spraying box. Access ports for workpieces and the lifting chain to pass through are provided on the left and right sides of the spraying box, and an operating port is provided on the front side of the spraying box to facilitate the spraying of workpieces arriving at the spraying station by the operator.

[0017] The beneficial effects of this utility model are as follows: The lifting assembly of this utility model, which cooperates with the center hole of the high-speed train wheel, can stably lift the high-speed train wheel and place it in the optimal spraying posture. The area to be sprayed is unobstructed, achieving all-round spraying without dead angles, ensuring the uniformity and integrity of the coating, guaranteeing the coating quality, and greatly improving the anti-corrosion effect and product appearance quality. The area that does not need to be sprayed is completely shielded and sealed, preventing the paint from entering the center hole during the spraying process and eliminating the problem of center hole contamination. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the lifting device of this utility model; Figure 2 This is a front view structural diagram of the lower support of this utility model; Figure 3 This is a top view of the lower support of this utility model. Figure 4 This is a front view structural diagram of the pressure cap of this utility model; Figure 5 This is a top view of the cover structure of this utility model; Figure 6 This is a schematic diagram of the structure of the lifting rod of this utility model; Figure 7 This is a schematic diagram of the workpiece of this utility model at the loading station; Figure 8 This is a schematic diagram of the workpiece of this utility model at the spraying station; As shown in the figure: 1. Lifting chain, 2. Hook, 3. Workpiece, 4. Lower support, 41. Lower support plate, 42. Lower end plate, 43. Connecting nut, 5. Pressure cap, 51. Pressure plate, 52. Upper end plate, 53. Circular through hole, 6. Lifting rod, 61. Hanging hole, 62. Baffle, 7. Connecting seat, 8. Spraying box. Detailed Implementation

[0019] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0020] like Figure 1-8 As shown, this utility model includes a lifting device for hoisting the workpiece 3, a suspended conveyor for transferring the workpiece 3, and a spraying box 8 for spraying the workpiece 3.

[0021] The lifting device includes a lifting chain 1, a hook 2, and a hanging assembly for fixing the workpiece 3. The hanging assembly includes a lower support 4 for supporting the bottom of the workpiece 3 and sealing the lower end of the center hole of the workpiece 3, a pressure cap 5 placed on the top of the workpiece 3 and sealing the upper end of the center hole of the workpiece 3, and a lifting rod 6 that passes through the pressure cap 5 and extends into the center hole and is connected to the lower support 4.

[0022] The lower support 4 includes a lower support plate 41, a lower blocking plate 42 fixed to the upper surface of the lower support plate 41 and embedded in the central hole, and a connecting nut 43 fixed to the upper surface of the lower blocking plate 42. The lower blocking plate 42 is fixed to the middle of the lower support plate 41, and the connecting nut 43 is fixed to the middle of the lower blocking plate 42. Both the lower support plate 41 and the lower blocking plate 42 are circular plates.

[0023] The pressure cap 5 includes a pressure plate 51 and an upper blocking plate 52 fixed to the lower surface of the pressure plate 51 and embedded in the central hole. The upper blocking plate 52 is fixed to the middle of the pressure plate 51. Both the pressure plate 51 and the upper blocking plate 52 are circular plates. A circular through hole 53 for the lifting rod 6 to pass through is provided in the middle of the pressure plate 51 and the upper blocking plate 52.

[0024] The lower part of the lifting rod 6 is threaded, and the lifting rod 6 is threadedly connected to the connecting nut 43. The top of the lifting rod 6 is provided with a hanging hole 61 for connecting with the hook 2. In this embodiment, a baffle 62 is provided on the lifting rod 6 below the hanging hole 61. The baffle 62 has a certain limiting effect on the pressure cover 5 to prevent the pressure cover 5 from falling off.

[0025] The top of hook 2 is connected to the bottom of hanging chain 1 via connecting seat 7. Specifically, the top of hook 2 is rotatably connected to connecting seat 7, and connecting seat 7 is fixed to the bottom of hanging chain 1.

[0026] The aforementioned overhead conveyor is existing technology, mainly comprising a traction chain, a carriage, an overhead track, and a drive mechanism. Its specific structure and working principle will not be elaborated here. The top of the sling chain 1 is fixed to the carriage of the overhead conveyor. The overhead conveyor transfers the workpiece 3 on the lifting device from the loading station to the spraying station of the spraying box 8. After the workpiece 3 is sprayed, it is then transferred to the unloading station outside the spraying box 8.

[0027] The spray coating box 8 includes a box body and a handheld spray gun installed inside the box body. The operator uses the handheld spray gun to spray the workpiece 3. The structure of the spray coating box 8 is existing technology and is not an innovative part of this application; its specific structure and principle will not be described in detail here. In this embodiment, the suspended conveyor is located above the spray coating box 8, and a channel for the hanging chain 1 to pass through is provided on the top of the spray coating box 8. Access ports for the workpiece 3 and the hanging chain 1 to pass through are respectively provided on the left and right sides of the spray coating box 8, and an operating port is provided on the front side of the spray coating box 8 to facilitate the operator's spraying of the workpiece 3 upon arrival at the spraying station.

[0028] In practice, the hanging assembly is installed in the center hole of the workpiece 3 to be sprayed. The hanging rod 6 is hung on the hook 2 at the loading station. The workpiece 3 on the hanging device is transferred from the loading station to the spraying station of the spraying box 8 by the overhead conveyor. The operator manually rotates the workpiece 3 (the top of the hook 2 rotates along the connecting seat 7) and operates the handheld spray gun to spray the workpiece 3. After the workpiece 3 is sprayed, the overhead conveyor transfers the workpiece 3 to the unloading station outside the spraying box 8.

[0029] The lifting assembly of this utility model, which cooperates with the center hole of the high-speed train wheel, can stably lift the high-speed train wheel and place it in the optimal spraying posture. The area to be sprayed is unobstructed, achieving all-round spraying without dead angles, ensuring the uniformity and integrity of the coating, guaranteeing the coating quality, and greatly improving the anti-corrosion effect and product appearance quality. The area that does not need to be sprayed is completely shielded and sealed, preventing the paint from entering the center hole during the spraying process and eliminating the problem of center hole contamination.

[0030] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A high-speed rail wheel spraying device, characterized in that: The device includes a lifting device for hoisting workpieces, the lifting device including a chain, a hook and a hanging assembly for fixing the workpiece, the hanging assembly including a lower support for supporting the bottom of the workpiece and sealing the lower end of the workpiece's central hole, a pressure cap placed on the top of the workpiece and sealing the upper end of the workpiece's central hole, and a lifting rod that passes through the pressure cap and extends into the central hole and is connected to the lower support.

2. The high-speed rail wheel spraying device according to claim 1, characterized in that: The lower support includes a lower support plate, a lower blocking plate fixed to the upper surface of the lower support plate and embedded in the central hole, and a connecting nut fixed to the upper surface of the lower blocking plate.

3. The high-speed rail wheel spraying device according to claim 2, characterized in that: The lower end plate is fixed to the middle of the lower support plate, and the connecting nut is fixed to the middle of the lower end plate. Both the lower support plate and the lower end plate are circular plates.

4. The high-speed rail wheel spraying device according to claim 1, characterized in that: The pressure cap includes a pressure plate and an upper blocking plate fixed to the lower surface of the pressure plate and embedded in the central hole.

5. A high-speed rail wheel spraying device according to claim 4, characterized in that: The upper blocking plate is fixed to the middle of the pressure plate. Both the pressure plate and the upper blocking plate are circular plates, and a circular through hole for the hanger rod to pass through is provided in the middle of the pressure plate and the upper blocking plate.

6. The high-speed rail wheel spraying device according to claim 2, characterized in that: The lower part of the boom is threaded, and the boom is threaded to the connecting nut. The top of the boom is provided with a hanging hole for connection with the hook.

7. The high-speed rail wheel spraying device according to claim 1, characterized in that: The top of the hook is connected to the bottom of the chain via a connecting seat. Specifically, the top of the hook is rotatably connected to the connecting seat, and the connecting seat is fixed to the bottom of the chain.

8. The high-speed rail wheel spraying device according to claim 1, characterized in that: It also includes overhead conveyors for transferring workpieces and spray booths for spraying the workpieces.

9. A high-speed rail wheel spraying device according to claim 8, characterized in that: The top of the chain is fixed to the carriage of the suspended conveyor.

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