Automatic powder metallurgy friction body paint spraying device for monorail crane

Abstract

The utility model provides a kind of powder metallurgy friction body automatic paint spraying device for monorail crane, including workbench, at least one group of fixed components is provided in the upper portion of workbench, and the fixed component includes fixed shaft arranged in the upper portion of workbench, rotating column is rotatably connected on the outer side wall of the upper end of fixed shaft, fixed cylinder is arranged in the upper portion of rotating column, protective sleeve is arranged at both ends of powder metallurgy friction body, the protective sleeve located in lower end is detachably connected on the inner side wall of fixed cylinder, driving assembly is arranged in the upper portion of workbench, spraying assembly is arranged in the upper portion of workbench, the utility model is meshed transmission by gear and transmission chain in driving assembly, realize the continuous automatic movement of fixed component, drive powder metallurgy friction body to pass spraying station in turn, form water flow operation, compared with artificial spraying, can synchronously drive multiple fixed components circulation, greatly improve the operation coherence, effectively adapt batch production rhythm, significantly improve overall capacity.

Description

Technical Field

[0001] This utility model relates to the field of railway product component processing technology, specifically to an automatic spray painting device for powder metallurgy friction bodies used in monorail cranes. Background Technology

[0002] As an indispensable auxiliary transportation equipment in coal mines, monorail cranes achieve efficient transfer of materials and equipment by means of suspended tracks. Due to the narrow space and complex and variable working conditions underground, the reliability of the braking system is subject to extremely high requirements. Once the brake fails, it can easily lead to a major safety accident. Therefore, it is crucial to monitor the wear condition of the braking components in real time.

[0003] As the core actuator of the monorail crane braking system, the wear degree of the powder metallurgy friction body (the core component of the brake block) directly determines the braking performance. Industry standards clearly require that fluorescent paint be sprayed on specific areas of the friction body and the steel backing surface. The intuitive display characteristics of fluorescent paint can be used to quickly determine whether the wear has reached the critical value, so as to replace the parts in time and avoid braking failure. In the existing technology, manual spraying is usually used. This method has the advantages of low equipment investment, flexible operation and low initial cost, and has certain applicability in small batch production scenarios.

[0004] However, manual spraying of fluorescent paint is inefficient, difficult to adapt to the pace of mass production, restricts capacity improvement, and lacks precision. Manual spraying can easily lead to blurred boundaries between different areas of fluorescent paint (such as unclear lines between friction working areas and non-working areas), and uneven paint thickness (excessive thickness in some areas will delay wear warning, while excessive thinness may cause false alarms in advance), which directly affects the accuracy of wear monitoring and creates safety hazards. Utility Model Content

[0005] In view of this, the present invention provides an automatic painting device for powder metallurgy friction bodies for monorail cranes. It can realize the continuous automatic movement of fixed components through the meshing of gears and transmission chains in the drive components, and drive the powder metallurgy friction bodies to pass through the spraying station in sequence to form a streamlined operation. Compared with manual spraying, it can simultaneously drive multiple sets of fixed components to circulate, which greatly improves the continuity of operation, effectively adapts to the rhythm of mass production, and significantly improves the overall production capacity.

[0006] To solve the above-mentioned technical problems, this utility model provides an automatic painting device for powder metallurgy friction bodies of monorail cranes, including a worktable, which consists of a flat plate and support legs, and at least one set of fixing components is provided on the upper part of the worktable.

[0007] The fixing component includes a fixed shaft set on the upper part of the worktable, a wheel seat fixedly connected to the lower part of the fixed shaft, at least one guide wheel rotatably connected to the inner side wall of the lower part of the wheel seat via a rotating shaft, the guide wheel slidably connected to the upper part of the worktable, and a rotating column rotatably connected to the upper end of the fixed shaft via a bearing.

[0008] A fixed cylinder is fixedly connected to the upper part of the rotating column. The fixed cylinder is used to support the powder metallurgy friction body to be sprayed. Protective sleeves are fitted on both ends of the powder metallurgy friction body. The protective sleeve at the lower end is detachably connected to the inner wall of the fixed cylinder.

[0009] A drive assembly is provided on the upper part of the worktable to drive the fixed assembly to move along a predetermined path. The drive assembly includes a sprocket bearing seat connected to the upper part of the worktable by bolts. A rotating shaft is rotatably connected to the sprocket bearing seat by bearings. A gear is provided on the outer side wall of the rotating shaft. A fixing plate is fixedly connected to the upper part of the rotating shaft. The fixing plate is connected to the top surface of the gear by bolts.

[0010] A transmission chain is arranged around the two gears, and the transmission chain meshes with the teeth of the two gears. Multiple support plates are evenly connected to the lower part of the transmission chain by bolts. A connecting plate is bolted to the top of the wheel seat, and the connecting plate is bolted to the upper part of the support plate. A first motor is arranged at the lower part of one of the gears, and the output shaft of the first motor is connected to the lower end of the rotating shaft through a coupling.

[0011] Guide components are symmetrically arranged on the upper part of the workbench and on both sides of the transmission chain. Each set of guide components includes a pair of guardrails symmetrically arranged above the workbench. The two guardrails are mounted on the workbench by multiple fixed brackets on their facing surfaces.

[0012] The fixed bracket on the side away from the transmission chain includes an L-shaped mounting bracket bolted to the upper part of the workbench. The L-shaped mounting bracket is provided with a threaded rod, and nuts are provided on both sides of the threaded rod. Each pair of guardrails has a mounting groove on their opposite sides, and one of the nuts is slidably connected in the mounting groove. The fixed bracket on the side closer to the transmission chain needs to avoid obstructing the rotation of the transmission chain. Therefore, the length of the threaded rod on the side closer to the transmission chain needs to be longer than that on the side farther from the transmission chain, and four nuts are needed to limit and support the guardrail.

[0013] A spraying assembly is provided on the upper part of the workbench for spraying fluorescent paint onto powder metallurgy materials moved to the spraying station. The spraying assembly includes a mounting base connected to the upper part of the workbench by bolts. An adjusting bracket is provided on the upper part of the mounting base. The adjusting bracket includes a mounting rod connected laterally to the upper part of the mounting base by bolts. At least one cross-shaped fixing clamp is slidably connected to the outer wall of the mounting rod. A connecting rod is provided in one of the mounting holes of the cross-shaped fixing clamp. The connecting rod is perpendicular to the mounting rod. At least one set of spray nozzles is provided on the outer wall of the adjusting bracket. The spray nozzles are connected to the outer wall of the connecting rod by bolts.

[0014] A mounting bracket is fixedly connected to the upper part of the workbench and to one side of the spraying component. The mounting bracket includes a first positioning plate that is bolted to the workbench. The first positioning plate has multiple rectangular slots at the positions corresponding to the bolts, so that the position of the first positioning plate can be adjusted on one side of the workbench. Multiple columns are fixedly connected to the upper part of the first positioning plate, and a second positioning plate is fixedly connected to the upper part of the multiple columns.

[0015] The second positioning plate (i.e., the mounting bracket) has symmetrical pulleys on its upper part. The pulleys are mounted on the upper part of the second positioning plate through a rotating shaft. A belt is sleeved around the two pulleys. A second motor is installed under one of the pulleys. The output shaft of the second motor is connected to the rotating shaft through a coupling.

[0016] An adjustment plate is provided on the upper part of the mounting bracket. An adjustment groove is provided on the upper part of the adjustment plate. The position of the adjustment groove can be adjusted on the mounting bracket. The adjustment plate is connected to the upper part of the mounting bracket by bolts passing through the adjustment groove. A tensioning plate is fixedly connected to the upper part of the adjustment plate facing the belt side for pressing the belt.

[0017] A positioning bracket is symmetrically arranged on the upper part of the workbench and on the side corresponding to the belt. The positioning bracket includes a first fixing post fixedly connected to the upper part of the workbench, a cross fixing clamp slidably connected to the first fixing post, a second fixing post in one of the mounting holes of the cross fixing bracket, and a guide strip on the side of the positioning bracket (i.e., the two second fixing posts) facing the belt.

[0018] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:

[0019] 1. Improve spraying efficiency and adapt to mass production: Through the meshing transmission of gears and transmission chains in the drive components, the fixed components are moved continuously and automatically, driving the powder metallurgy friction bodies to pass through the spraying station in sequence, forming a streamlined operation. Compared with manual spraying, it can drive multiple sets of fixed components to circulate at the same time, which greatly improves the continuity of operation, effectively adapts to the rhythm of mass production, and significantly improves the overall production capacity.

[0020] 2. Improve spraying precision and ensure monitoring accuracy: The guide component uses symmetrically arranged guardrails to limit the fixed component in both directions. Combined with the precise positioning of the positioning bracket, it ensures the stability of the relative position of the powder metallurgy friction body and the nozzle at the spraying station, avoiding path deviation. At the same time, the nozzle can be adjusted in multiple dimensions through the adjustment bracket, which can accurately align with the area to be sprayed. This effectively solves the problems of blurred boundaries and uneven paint thickness that are prone to occur during manual spraying, ensuring the position and thickness accuracy of fluorescent paint spraying and providing a reliable guarantee for the accuracy of wear monitoring.

[0021] 3. Enhanced device adaptability to meet diverse needs: Multiple components in this device can be flexibly adjusted. For example, the position of the guardrail can be finely adjusted by the threaded rod and nut of the fixing bracket, the angle and position of the nozzle can be adjusted by the cross fixing clamp, etc., and the position of the mounting bracket can be adjusted by the rectangular slot of the first positioning plate. These adjustment functions enable the device to adapt to powder metallurgy friction bodies of different specifications, meet diverse production needs, and improve the versatility of the equipment.

[0022] 4. Ensure operational stability and extend equipment life: All components are firmly connected, gears and shafts are eliminated through multiple positioning to eliminate transmission slippage, bearings in the sprocket bearing housing reduce rotational friction, and tension plates ensure that the belt is always taut to ensure transmission effect. This makes the device stable and reliable during operation, reduces failures caused by loose parts or poor transmission, and extends the service life of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of a partial component structure of this utility model;

[0025] Figure 3 This is a schematic diagram of the fixing component structure of this utility model;

[0026] Figure 4 For the present utility model Figure 2 A partially enlarged structural diagram;

[0027] Figure 5 This is a schematic diagram of the spraying assembly structure of this utility model;

[0028] Figure 6 This is a schematic diagram of the mounting bracket and its components according to the present invention.

[0029] Figure 7 This is a schematic diagram of the mounting bracket and its components on the other side of the present invention.

[0030] Figure 8 This is a schematic diagram of the positioning bracket and its components according to the present invention.

[0031] In the diagram: 101, worktable; 102, fixed shaft; 103, rotating column; 104, fixed cylinder; 105, powder metallurgy friction element; 106, protective sleeve;

[0032] 201. Wheel base; 202. Guide wheel;

[0033] 301. Gear; 302. Fixing plate; 303. Transmission chain; 304. Support plate; 305. Connecting plate; 306. First motor;

[0034] 401. Guardrail;

[0035] 501, L-shaped mounting bracket; 502, threaded rod; 503, nut; 504, mounting slot;

[0036] 601. Mounting base; 602. Mounting rod; 603. Cross-shaped retaining clip; 604. Connecting rod; 605. Nozzle;

[0037] 701. First positioning plate; 702. Column; 703. Second positioning plate; 704. Pulley; 705. Belt; 706. Second motor;

[0038] 801. Adjusting plate; 802. Tensioning plate; 803. Adjusting groove;

[0039] 901, First fixing post; 902, Second fixing post; 903, Guide bar. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-8 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0041] An automatic painting device for powder metallurgy friction bodies of monorail cranes, such as Figure 1 , 2 As shown: It includes a workbench 101, which consists of a flat plate and support legs, providing a stable installation base for the entire device. At least one set of fixing components is provided on the upper part of the workbench 101 to stably support the powder metallurgy friction body 105 to be sprayed. When one powder metallurgy friction body 105 is being sprayed, another adjacent metallurgy powder friction body can move with the fixing components, so that it can be continuously sprayed and improve the overall spraying efficiency.

[0042] like Figure 1 , 2As shown in Figure 3: The fixing component includes a fixing shaft 102 set on the upper part of the worktable 101. A wheel seat 201 is fixedly connected to the lower part of the fixing shaft 102. At least one guide wheel 202 is rotatably connected to the lower inner side wall of the wheel seat 201 through a rotating shaft. The guide wheel 202 is slidably connected to the upper part of the worktable 101. The guide wheel 202 can slide along the plane of the upper part of the worktable 101 to ensure that the fixing component moves smoothly. A rotating column 103 is rotatably connected to the upper end of the fixing shaft 102 through a bearing. The rotating column 103 can rotate flexibly around the fixing shaft 102, which facilitates the rotation of the powder metallurgy friction body 105 to achieve all-round spraying.

[0043] A fixed cylinder 104 is fixedly connected to the upper part of the rotating column 103. The inner diameter of the fixed cylinder 104 is adapted to the outer diameter of the powder metallurgy friction body 105. The fixed cylinder 104 is used to support the powder metallurgy friction body 105 to be sprayed. Protective sleeves 106 are fitted on both ends of the powder metallurgy friction body 105. The inner sidewall of the protective sleeve 106 fits tightly with the friction body, which can effectively prevent paint from being contaminated in non-sprayed areas. The lower protective sleeve 106 is detachably connected to the inner sidewall of the fixed cylinder 104, which makes it convenient to replace the protective sleeve 106 of different sizes according to the specifications of the friction body.

[0044] like Figure 1 , 2 As shown: A drive assembly is provided on the upper part of the workbench 101 to drive the fixed assembly to move continuously along a predetermined path to realize assembly line operation. The drive assembly includes a sprocket bearing seat connected to the upper part of the workbench 101 by bolts. A rotating shaft is rotatably connected to the sprocket bearing seat by bearings. A gear 301 is provided on the outer wall of the rotating shaft. A fixing plate 302 is fixedly connected to the upper part of the rotating shaft. The fixing plate 302 is connected to the top surface of the gear 301 by bolts.

[0045] A transmission chain 303 is arranged around two gears 301. The transmission chain 303 meshes with the teeth of the two gears 301 to form a stable transmission structure. Multiple support plates 304 are evenly connected to the lower part of the transmission chain 303 by bolts. A connecting plate 305 is bolted to the top of the wheel seat 201. The connecting plate 305 is bolted to the upper part of the support plate 304, so that the fixed component and the transmission chain 303 are linked together. A first motor 306 is arranged at the lower part of one of the gears 301. The first motor 306 is a speed-regulating motor. The output shaft of the first motor 306 is connected to the lower end of the rotating shaft through a coupling. When the first motor 306 is working, it drives the rotating shaft and the gear 301 to rotate, thereby driving the transmission chain 303 to move, realizing the automatic movement of the fixed component.

[0046] The system employs a meshing transmission structure of gear 301 and transmission chain 303, achieving zero-slip power transmission through precise tooth profile matching. This ensures that the fixed components move at a uniform speed along a predetermined path. The symmetrical arrangement of the two gears 301 forms a closed transmission chain, which, together with the rigid connection between the chain and the support plate 304, can simultaneously drive multiple sets of fixed components to circulate, meeting the needs of batch continuous spraying. Compared with the manual transfer mode, this significantly improves the continuity of operations and overall production capacity.

[0047] The gear 301 and the rotating shaft are double-positioned through keyway engagement and bolt fastening of the fixing plate 302, eliminating radial movement and axial displacement during transmission. The bearing structure in the sprocket bearing housing reduces rotational friction and ensures smooth power transmission. The high-precision transmission characteristics make the lateral offset of the fixed component extremely small when it moves, ensuring that the relative position of the powder metallurgy friction body 105 and the spray head 605 is stable when the powder metallurgy friction body 105 passes through the spraying station, laying the foundation for uniform spraying of fluorescent paint and effectively avoiding the positional deviation problem of manual spraying.

[0048] The first motor 306 is a speed-regulating motor. Power adjustment is achieved through the connection between the output shaft and the rotating shaft. The moving speed can be flexibly adjusted according to parameters such as the specifications of the friction body and the characteristics of the paint, so as to meet the requirements of different spraying processes for the operating rhythm and enhance the adaptability of the equipment to diverse production needs.

[0049] like Figure 1 , 2 As shown in Figure 4: Guide components are symmetrically arranged on the upper part of the workbench 101 and on both sides of the transmission chain 303. These components are used to precisely guide the movement direction of the fixed components and prevent them from deviating from the predetermined path. Each set of guide components includes guardrails 401 symmetrically arranged above the workbench 101. The opposing surfaces of the guardrails 401 are provided with rubber layers to avoid damage to the outer wall of the rotating column 103 and to prevent the rotating column 103 from making hard contact with the turning part when turning. The opposing surfaces of the two guardrails 401 are installed on the workbench 101 by multiple fixed brackets to ensure that the guardrails 401 are firmly installed.

[0050] The guide component forms a two-way limiting channel through the symmetrically arranged guardrails 401, which can rigidly constrain the movement trajectory of the fixed component, effectively preventing the fixed component from shifting laterally under the drive component, ensuring that it passes through the spraying station accurately along the predetermined path, providing a basic guarantee for the positional accuracy of fluorescent paint spraying, and avoiding problems such as missed spraying and mis-spraying caused by path deviation.

[0051] The symmetrical structure of guardrail 401 is adapted to the movement rhythm of the fixed components. During the circulation of the fixed components, it always maintains stable positioning on both sides. Especially in the turning area of ​​the transmission chain 303, the arc transition design (in conjunction with the guide bar 903) can guide the fixed components to turn smoothly, avoiding shaking or jamming caused by centrifugal force and ensuring the continuity of overall operation.

[0052] The guide assembly on the side away from the spraying assembly facilitates the movement and inspection of the powder metallurgy friction body 105 after spraying (to facilitate the inspection of the spraying by the staff; for easy differentiation, the two sets of guide assemblies are not connected together by the arc-shaped guide rail, but the two sets of guide assemblies can be connected by the arc-shaped guide rail according to production needs), while the guide assembly on the side closer to the spraying assembly is used to cooperate with the spraying assembly to spray fluorescent paint onto the powder metallurgy friction body 105.

[0053] like Figure 2 , 4 As shown: The fixed bracket on the side away from the transmission chain 303 includes an L-shaped mounting bracket 501 bolted to the upper part of the workbench 101. A threaded rod 502 is provided on the L-shaped mounting bracket 501. Nuts 503 are provided on both sides of the threaded rod 502. A mounting groove 504 is provided on the opposite side of each pair of guardrails 401. One of the nuts 503 is slidably connected in the mounting groove 504. By adjusting the position of the nut 503 on the threaded rod 502, the lateral position of the guardrail 401 can be finely adjusted.

[0054] The fixed bracket on the side closer to the transmission chain 303 needs to avoid obstructing the rotation of the transmission chain 303. Therefore, the length of the threaded rod 502 on the side farther away from the transmission chain 303 needs to be longer. Four nuts 503 are also needed to limit and support the guardrail 401 to ensure that the guardrail 401 does not shake during operation.

[0055] The fixed bracket adopts a combination structure of threaded rod 502 and nut 503. By adjusting the position of nut 503 on threaded rod 502, the lateral distance of guardrail 401 can be finely adjusted, which can adapt to the width requirements of different specifications of fixed components and enhance the equipment's versatility in processing diverse powder metallurgy friction bodies 105.

[0056] The bracket away from the transmission chain 303 is rigidly connected to the workbench 101 through an L-shaped mounting bracket. The bracket close to the transmission chain 303 adopts an extended threaded rod 502 and a four-nut 503 limiting structure, which can not only avoid interference with the rotation of the transmission chain 303, but also ensure the installation stability of the guardrail 401 in a high-frequency vibration environment through multiple fastenings, and prevent the guardrail 401 from loosening and affecting the guiding accuracy.

[0057] To address the different operating conditions on both sides of the transmission chain 303, the fixed bracket adopts a differentiated design: the short threaded rod 502 on the side away from the chain has a simplified structure, saving installation space; the long threaded rod 502 on the side closer to the chain, together with the four nuts 503, provides a limit, which strengthens the fixing effect while avoiding the chain's running trajectory, achieving interference-free collaborative work with the drive components and improving the overall structural compactness of the device.

[0058] like Figure 5 As shown: A spraying assembly is provided on the upper part of the workbench 101 for spraying fluorescent paint onto powder metallurgy materials moved to the spraying station. The spraying assembly includes a mounting base 601 bolted to the upper part of the workbench 101. An adjusting bracket is provided on the upper part of the mounting base 601. The adjusting bracket includes a mounting rod 602 bolted laterally to the upper part of the mounting base 601. At least one cross-shaped fixing clip 603 is slidably connected to the outer wall of the mounting rod 602. A connecting rod 604 is provided in one of the mounting holes of the cross-shaped fixing clip 603. The connecting rod 604 is perpendicular to the mounting rod 602. At least one set of nozzles 605 is provided on the outer wall of the adjusting bracket. The nozzles 605 are bolted to the outer wall of the connecting rod 604. The spraying angle of the nozzles 605 can be adjusted by rotating the connecting rod 604 to ensure that the nozzles 605 can be accurately aligned with the area to be sprayed on the friction body.

[0059] The cross-shaped fixing clamp 603 can slide freely along the axial direction of the mounting rod 602 and is locked in position by bolts. With the vertical arrangement of the connecting rod 604 and the mounting rod 602, the nozzle 605 can be adjusted in multiple dimensions in the horizontal direction (along the mounting rod 602) and the vertical direction (along the connecting rod 604). The adjustment method can accurately match the spraying area requirements of powder metallurgy friction bodies 105 of different specifications. Whether it is the curved surface, plane or specific boundary area of ​​the friction body, the accuracy of the fluorescent paint spraying position can be ensured by adjusting the angle and distance of the nozzle 605, thus solving the problem of blurred boundaries during manual spraying.

[0060] like Figure 6 , 7 As shown: A mounting bracket is fixedly connected to the upper part of the workbench 101 and to one side of the spraying assembly. This bracket is used to install the transmission structure that drives the powder metallurgy friction body 105 to rotate. The mounting bracket includes a first positioning plate 701 that is bolted to the workbench 101. Multiple rectangular slots are provided on the first positioning plate 701 at the positions corresponding to the bolts. After loosening the bolts, the first positioning plate 701 can be pushed to move along the slots, thereby adjusting the position of the mounting bracket on one side of the workbench 101. After adjustment, the bolts are tightened to fix it, allowing the first positioning plate 701 to be adjusted on one side of the workbench 101. Multiple columns 702 are fixedly connected to the upper part of the first positioning plate 701. A second positioning plate 703 is fixedly connected to the upper part of the multiple columns 702, forming a stable double-layer support structure.

[0061] The upper part of the second positioning plate 703 (i.e., the mounting bracket) is symmetrically provided with pulleys 704. The pulleys 704 are mounted on the upper part of the second positioning plate 703 through a rotating shaft. A belt 705 is sleeved around the two pulleys 704. A second motor 706 is provided under one of the pulleys 704. The second motor 706 is also a speed-regulating motor. The output shaft of the second motor 706 is connected to the rotating shaft through a coupling.

[0062] When the powder metallurgy friction body 105 moves to the spraying station, one end of the friction body contacts the belt 705. The second motor 706 drives the pulley 704 to rotate, which in turn causes the belt 705 to rotate. Under the action of friction, the friction body rotates around its own axis, and the spray nozzle 605 works together to achieve uniform spraying of the circumferential surface of the friction body.

[0063] like Figure 7 As shown: An adjusting plate 801 is provided on the upper part of the mounting bracket. An adjusting groove 803 is provided on the upper part of the adjusting plate 801. The adjusting groove 803 can be adjusted on the mounting bracket. The adjusting plate 801 is connected to the upper part of the mounting bracket by bolts passing through the adjusting groove 803. After loosening the bolts, moving the adjusting plate 801 can change the tightness of the tension plate 802 on the belt 705, ensuring that the belt 705 is always in a taut state and ensuring the transmission effect. The tension plate 802 is fixedly connected to the upper part of the adjusting plate 801 facing the belt 705. The end of the tension plate 802 is in contact with the belt 705 and is used to press the belt 705.

[0064] like Figure 7 , 8 As shown: A positioning bracket is symmetrically arranged on the upper part of the workbench 101 and on the side corresponding to the belt 705. It is used to accurately position the powder metallurgy friction body 105 that is moved to the spraying station to ensure that it is in accurate contact with the belt 705. The positioning bracket includes a first fixing column 901 fixedly connected to the upper part of the workbench 101. A cross fixing clamp is slidably connected to the first fixing column 901. The cross fixing clamp can move up and down along the first fixing column 901 and be fixed to achieve height adjustment.

[0065] like Figure 8 As shown: A second fixing post 902 is inserted into one of the mounting holes of the cross-shaped fixing bracket. The second fixing post 902 can move laterally and be fixed within the cross-shaped fixing clamp to achieve lateral position adjustment. Guide strips 903 are provided on the side of the two second fixing posts 902 facing the belt 705. The guide strips 903 are made of smooth metal material. When the friction body moves to the spraying station, its two sides come into contact with the guide strips 903. Under the action of the guide strips 903, it is accurately positioned to ensure that the axis of the friction body is parallel to the transmission direction of the belt 705, and to ensure that the friction body can rotate smoothly.

[0066] When using:

[0067] First, put protective sleeves 106 on both ends of the powder metallurgy friction body 105 to be sprayed, and insert the lower end into the fixing cylinder 104 and fix it with the protective sleeve 106 to ensure that the friction body is vertical and stable and avoids shaking.

[0068] When the power is turned on, the first motor 306 and the second motor 706 are started. The first motor 306 drives the gear 301 to rotate, and drives the fixed component to move along the guide path of the guardrail 401 through the transmission chain 303. The second motor 706 drives the pulley 704 to rotate, so that the belt 705 is in the ready-to-drive state.

[0069] When the fixed assembly carries the friction body to the spraying station, one side of the friction body contacts the belt 705 and rotates with the belt 705 under the action of friction (the guide bar 903 ensures stable contact).

[0070] The spraying assembly is started synchronously, and the nozzle 605 sprays fluorescent paint onto the rotating friction body. The uniform spraying of the circumferential surface is achieved by the rotation of the friction body. The speed adjustment function of the first motor 306 can adjust the moving speed according to the characteristics of the paint: reduce the speed when a thicker paint layer is needed, and increase the speed when rapid drying is required.

[0071] The drive chain 303 rotates in a cycle, driving the subsequent fixed components to enter the spraying station in sequence to complete continuous batch spraying. The operator can perform a visual inspection of the sprayed friction body on the guide component side away from the spraying component (the sprayed fixed component can be placed on the guide component away from the spraying component for observation).

[0072] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0073] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An automatic painting device for powder metallurgy friction bodies of monorail cranes, comprising a worktable (101), characterized in that: At least one set of fixing components is provided on the upper part of the workbench (101); The fixing assembly includes a fixing shaft (102) disposed on the upper part of the workbench (101), a rotating column (103) is rotatably connected to the outer wall of the upper end of the fixing shaft (102), a fixing cylinder (104) is disposed on the upper part of the rotating column (103), the fixing cylinder (104) is used to support the powder metallurgy friction body (105) to be sprayed, and protective sleeves (106) are provided at both ends of the powder metallurgy friction body (105), the lower protective sleeve (106) is detachably connected to the inner wall of the fixing cylinder (104); The upper part of the workbench (101) is provided with a drive component for driving the fixed component to move along a predetermined path; The upper part of the workbench (101) is equipped with a spraying assembly for spraying fluorescent paint onto the powder metallurgy friction body (105) that has been moved to the spraying station.

2. The automatic painting device for powder metallurgy friction bodies of monorail cranes as described in claim 1, characterized in that: The fixed shaft (102) is provided with a wheel seat (201) at its lower part, and at least one guide wheel (202) is rotatably connected to the inner side wall of the lower part of the wheel seat (201).

3. The automatic painting device for powder metallurgy friction bodies of monorail cranes as described in claim 2, characterized in that: The drive assembly includes sprocket bearing seats symmetrically arranged on the upper part of the worktable (101), a rotating shaft connected to the sprocket bearing seats, and a gear (301) provided on the outer side wall of the rotating shaft; A transmission chain (303) is arranged around the two gears (301), and multiple support plates (304) are evenly arranged on the lower part of the transmission chain (303). A connecting plate (305) is arranged on the top of the wheel seat (201), and the connecting plate (305) is arranged on the support plate (304). A first motor (306) is arranged on the lower part of one of the gears (301).

4. The automatic painting device for powder metallurgy friction bodies of monorail cranes as described in claim 3, characterized in that: Guide components are symmetrically arranged on the upper part of the workbench (101) and on both sides of the transmission chain (303); Each set of the guide components includes guardrails (401) symmetrically arranged above the workbench (101), with each of the two guardrails (401) mounted on the upper part of the workbench (101) via multiple fixed brackets on opposite sides.

5. The automatic painting device for powder metallurgy friction bodies of monorail cranes as described in claim 1, characterized in that: The spraying assembly includes a mounting base (601) disposed on the upper part of the workbench (101), an adjustment bracket is disposed on the upper part of the mounting base (601), and at least one set of spray nozzles (605) is disposed on the outer side wall of the adjustment bracket.

6. The automatic painting device for powder metallurgy friction bodies of monorail cranes as described in claim 5, characterized in that: The adjusting bracket includes a mounting rod (602) disposed on the upper part of the mounting base (601). At least one cross-shaped fixing clip (603) is slidably connected to the outer side wall of the mounting rod (602). A connecting rod (604) is disposed on the cross-shaped fixing clip. The connecting rod (604) is disposed perpendicular to the mounting rod (602). The nozzle (605) is disposed on the outer side wall of the connecting rod (604).

7. The automatic painting device for powder metallurgy friction bodies of monorail cranes as described in claim 1, characterized in that: A mounting bracket is provided on the upper part of the workbench (101) and on one side of the spraying assembly. Pulleys (704) are symmetrically arranged on the upper part of the mounting bracket. A belt (705) is arranged around the two pulleys (704). A second motor (706) is provided at the lower part of one of the pulleys (704).

8. The automatic painting device for powder metallurgy friction bodies of monorail cranes as described in claim 7, characterized in that: An adjustment plate (801) is provided on the upper part of the mounting bracket. An adjustment groove (803) is provided on the upper part of the adjustment plate (801). The position of the adjustment groove (803) can be adjusted on the mounting bracket. A tensioning plate (802) is provided on the upper part of the adjustment plate (801) facing the belt (705) for pressing the belt (705).

9. The automatic painting device for powder metallurgy friction bodies of monorail cranes as described in claim 7, characterized in that: A positioning bracket is symmetrically arranged on the upper part of the workbench (101) and on the side corresponding to the belt (705), and a guide strip (903) is arranged on the side of the positioning bracket facing the belt (705).

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