Oil injection mechanism for sidewalk escalator chain
By designing an oiling mechanism for escalator chains, an automatic oiling process is achieved by using a motor-driven screw to compress an elastic oil bladder and cleaning dust before oiling. This solves the problem of low oiling efficiency for escalator chains and improves lubrication effect and intelligence.
Patent Information
- Application Number
- CN202423040587.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-10
AI Technical Summary
The existing escalator chain refueling efficiency is low, it is difficult to achieve efficient lubrication in a small space, and there is a lack of automated refueling devices.
Design an oiling mechanism for escalator chains on sidewalks, including a mounting housing, an oil nozzle, an oil supply assembly, and a dust collection ring. The mechanism automatically adds oil by using a motor-driven screw to squeeze an elastic oil bladder. Before adding oil, the mechanism uses negative pressure suction to clean dust from the chain surface. It also incorporates a UV light source and a fluorescence sensor for intelligent monitoring and control.
It has achieved automated lubrication of the chain, improved lubrication efficiency, ensured uniform adhesion of lubricating oil, reduced manual operation, and enhanced lubrication effect and intelligence level.
Smart Images
Figure CN223480555U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of escalator lubrication devices, and in particular to a lubrication mechanism for escalator chains on sidewalks. Background Technology
[0002] Escalators are typical equipment for transporting passengers in public places. They consist of a chain conveyor and two belt conveyors, with a circulating stairway. They are fixed electrically driven equipment used to transport passengers in buildings, and the main driving force for the operation of escalators is the traction chain and sprockets.
[0003] To ensure the transportation of people inside the building, the continuous use time of escalators and pedestrian walkways can reach more than ten hours a day, 365 days a year. Therefore, the frequency of use of escalators and pedestrian walkways is extremely high. As a result, it is necessary to regularly apply lubricating oil to the connection between the sprockets and chains to reduce the friction between the mechanical parts, reduce mechanical wear on the sprockets and chains, and ensure the normal operation of the escalator.
[0004] However, existing common escalators and pedestrian walkways often lack a mechanism for adding lubricating oil to the chain. When lubricating the chain, it is usually done manually. However, due to the relatively small space inside the escalator where the chain is located, there is not enough room for operation, resulting in low lubrication efficiency and obvious shortcomings. Utility Model Content
[0005] To improve the efficiency of lubrication of chains, this application provides an oiling mechanism for escalator chains on sidewalks.
[0006] The oiling mechanism for escalator chains in this application adopts the following technical solution:
[0007] An oiling mechanism for an escalator chain includes a mounting shell disposed inside the escalator housing. The mounting shell has an oil nozzle positioned so that its oil outlet direction is towards the chain. An oil supply assembly is also provided on the mounting shell, including an oil supply tank. An elastic oil bladder is located on the bottom wall of the oil supply tank. An oil supply pipeline communicating with the oil nozzle is provided on the oil supply tank. A pressure plate is slidably connected inside the oil supply tank. A first screw is rotatably connected inside the oil supply tank. The pressure plate is threaded onto the first screw. A motor driving the first screw is mounted on the oil supply tank. Both the oil supply tank and the pressure plate have square cross-sections.
[0008] By adopting the above technical solution, when lubricating oil needs to be added, the motor drives the first screw to rotate. The rotation of the first screw causes the extrusion plate to move towards the elastic oil bladder. When the extrusion plate extrudes the elastic oil bladder, the lubricating oil is delivered to the oil nozzle along the oil supply pipeline. The oil nozzle sprays the lubricating oil onto the chain, thereby achieving lubrication of the chain and sprocket. This setting realizes automatic oiling of the chain, eliminating the need for manual entry into the chain installation space inside the escalator to add oil manually, thus improving the oiling efficiency.
[0009] Optionally, the mounting housing is provided with a dust suction ring, which is sleeved on the outer surface of the fuel injector. The dust suction ring is evenly provided with multiple dust suction nozzles in a circumferential direction, and the suction direction of the multiple dust suction nozzles is oriented towards the chain. The mounting housing is provided with an air cylinder, and the air outlet of the air cylinder is connected to the dust suction ring through an air pipe. A piston block is slidably connected inside the air cylinder, and a drive assembly is provided on the air cylinder. The drive assembly drives the piston block to move along the length direction of the air cylinder.
[0010] By adopting the above technical solution, before the extrusion plate squeezes the elastic oil bladder, the drive component drives the piston block to move away from the mounting shell. At this time, the gas space inside the air cylinder increases and the pressure decreases, thereby creating a negative pressure environment in the connected space formed by the dust suction ring and the air cylinder. Under the action of negative pressure, the dust on the surface of the chain is absorbed into the air cylinder. Then the extrusion plate squeezes the elastic oil bladder to add oil. This setting achieves the cleaning of the chain before oiling, so that the lubricating oil can better adhere to the chain surface and form a continuous and uniform oil film, thereby improving the lubrication effect after the lubricating oil is added.
[0011] Optionally, the drive assembly includes a second screw rotatably connected inside the air cylinder, a piston block threadedly connected to the second screw, an end of the first screw extending outside the oil supply tank and provided with a first gear, an end of the second screw extending outside the air cylinder and provided with a second gear, and an output shaft of the motor provided with a drive gear that meshes with the first gear and the second gear.
[0012] By adopting the above technical solution, the motor drives the drive gear to rotate, the drive gear drives the first gear to rotate in the forward direction, and at the same time drives the second gear to rotate in the reverse direction. At this time, the first screw drives the extrusion plate to move towards the elastic oil bladder, and the second screw drives the piston block to move away from the mounting shell. At this time, a negative pressure environment is formed inside the air cylinder, and the dust suction nozzle produces a dust suction effect. The setting of the drive component realizes that the dust suction and oil squeezing operations are carried out sequentially by a single motor, which reduces the risk of failure that may be caused by multiple drive sources, improves the stability of the refueling mechanism, and reduces the space occupied by the refueling mechanism inside the escalator.
[0013] Optionally, a guide groove is provided on the inner wall of the oil supply tank, and a guide block is provided on the extrusion block that slides in cooperation with the guide groove.
[0014] By adopting the above technical solution, under the guidance of the guide block and guide groove, the extrusion block will move along the vertical direction of the oil supply tank. This avoids the possibility of displacement caused by the pushing force of the elastic air bladder when the extrusion block extrudes the elastic air bladder, thereby making the extrusion block extrusion operation on the elastic oil bladder more stable, ensuring uniform force during each extrusion, and thus ensuring that the lubricating oil can be delivered to the oil nozzle through the oil supply pipe at a relatively stable flow rate, providing a stable and uniform lubrication effect for the chain.
[0015] Optionally, the mounting housing is provided with a dust collection box that communicates with the air cylinder, and an electrostatic dust collection plate is provided on the inner side wall of the dust collection box.
[0016] By adopting the above technical solution, after a negative pressure environment is formed inside the air cylinder, the dust suction nozzle sucks the dust on the chain surface into the dust collection box. At this time, the dust is adsorbed on the inner wall of the dust collection box by the principle of electrostatic adsorption, which avoids the situation where the dust re-adheres on the chain surface along the blown airflow when the piston block moves in the opposite direction, thereby further ensuring the lubrication effect of the lubricating oil.
[0017] Optionally, the oil supply tank is equipped with an oil storage tank, and the bottom surface of the oil storage tank is provided with an oil outlet. An oil delivery pipe communicating with the elastic oil bladder is provided at the oil outlet. A limiting groove is formed on the inner side wall opposite to the oil outlet. A limiting block is slidably connected in the two limiting grooves. The limiting block is an iron block. A sealing plate is provided on the two limiting blocks. The sealing plate is inverted U-shaped. An electromagnetic block for attracting the limiting block is provided at the end of the limiting groove near the oil storage tank. When the electromagnetic block attracts the limiting block, the surface of the sealing plate extends into the interior of the oil storage tank. When the limiting block is located at the end of the limiting groove away from the electromagnetic block, the sealing plate blocks the oil outlet.
[0018] By adopting the above technical solution, when the lubricating oil inside the elastic oil bladder decreases, the electromagnetic block is energized. The electromagnetic block attracts the limiting block, causing it to move closer to the electromagnetic block. This movement of the limiting block causes the sealing plate to gradually extend into the oil tank. At this point, the sealing of the oil outlet is lifted, and the lubricating oil in the oil tank flows into the elastic oil bladder through the oil outlet and the oil delivery pipe under the influence of gravity, replenishing the lubricating oil inside the elastic oil bladder. When the amount of lubricating oil in the elastic oil bladder reaches a suitable level, the electromagnetic block is de-energized, and the magnetic field disappears. The limiting block slides towards the end of the limiting groove away from the electromagnetic block under its own weight and the weight of the oil inside the oil tank. The movement of the limiting block causes the sealing plate to return to its initial position, sealing the oil outlet and preventing lubricating oil from continuing to flow into the elastic oil bladder, thus avoiding overfilling of the oil bladder. This design achieves automatic replenishment of the lubricating oil inside the elastic oil bladder, ensuring a sufficient supply of lubricating oil to meet the chain lubrication needs and ensuring that the escalator chain can be continuously and effectively lubricated.
[0019] Optionally, a sealing ring is fitted on the outer surface of the sealing plate. The sealing ring is made of an elastic material. A sealing groove is provided on the inner side wall of the oil outlet to engage with the sealing ring. When the limiting block is positioned at the end of the limiting groove away from the electromagnetic block, the sealing ring is inserted into the sealing groove.
[0020] By adopting the above technical solution, the insertion and cooperation of the sealing ring and the sealing groove enhances the sealing effect of the sealing plate on the oil outlet. When the oil outlet is blocked, it effectively prevents the lubricating oil in the oil tank from seeping out from the gap between the oil outlet and the sealing plate, thus avoiding the leakage and waste of lubricating oil in the oil tank.
[0021] Optionally, the mounting housing is provided with a UV light source and a fluorescence sensor, and the fluorescence sensor is electrically connected to the motor through a control system.
[0022] By adopting the above technical solution, the UV light source emits ultraviolet light, which causes the lubricating oil on the chain surface to fluoresce under the excitation of ultraviolet light. The fluorescence sensor determines whether the chain needs lubrication based on the intensity of the fluorescence, thereby controlling whether the motor starts to add lubricating oil to the chain. This setup enables accurate monitoring of the chain lubrication status and on-demand lubrication, improving the intelligence level and lubrication efficiency of the lubrication mechanism.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. This application improves lubrication efficiency by setting up an oil supply component and an oil nozzle, thereby achieving automatic oiling of the chain through the oil supply component, eliminating the need for manual addition by entering the chain installation space inside the escalator;
[0025] 2. This application, by setting up a dust suction nozzle, an air cylinder and a drive assembly, before oil supply, the drive assembly drives the air cylinder to form a negative pressure, and the dust suction nozzle absorbs the dust on the surface of the chain into the dust collection box. This setting achieves the cleaning of the chain before oiling, so that the lubricating oil can better adhere to the chain surface and form a continuous and uniform oil film, thereby improving the lubrication effect after the lubricating oil is added.
[0026] 3. This application, by setting up an oil reservoir, a sealing plate, an electromagnetic block, and an oil delivery pipe, allows the electromagnetic block to drive the sealing plate to unseal the oil reservoir when the lubricating oil inside the elastic oil bladder decreases. The lubricating oil in the reservoir then enters the elastic oil bladder along the oil delivery pipe. After replenishment, the sealing plate reseals the oil reservoir. This setup achieves automatic replenishment of the lubricating oil inside the elastic oil bladder, ensuring a sufficient supply of lubricating oil to meet the chain lubrication needs. Attached Figure Description
[0027] Figure 1 This is a schematic diagram of the structure of this application.
[0028] Figure 2 This is a cross-sectional view of the mounting shell in an embodiment of this application.
[0029] Figure 3 This is a cross-sectional view of the air cylinder and fuel tank in the embodiments of this application.
[0030] Figure 4 yes Figure 3 Enlarged view of point A in the middle.
[0031] Explanation of reference numerals in the attached drawings: 01, Escalator shell; 02, Chain; 03, Sprocket; 1, Mounting shell; 2, Oil nozzle; 3, Oil supply assembly; 31, Oil supply tank; 311, Guide groove; 32, Elastic oil bladder; 33, First oil supply pipe; 34, Second oil supply pipe; 35, Extrusion plate; 351, Guide block; 36, First screw; 4, Motor; 5, UV light source; 6, Fluorescent sensor; 7, Dust suction ring; 71, Dust suction nozzle; 8, Air cylinder; 81, Air pipe; 82, Piston block; 9, Drive assembly; 91, Second screw; 92, First gear; 93, Second gear; 94, Drive gear; 10, Dust collection box; 11, Oil storage tank; 111, Oil delivery pipe; 12, Oil outlet; 122, Sealing groove; 121, Limiting groove; 13, Limiting block; 14, Sealing plate; 141, Sealing ring; 15, Electromagnetic block. Detailed Implementation
[0032] The following is combined with Figure 1-4 This application is described in further detail.
[0033] This application discloses an oiling mechanism for escalator chains in pedestrian walkways.
[0034] Reference Figure 1 and Figure 2 An oiling mechanism for a moving walkway escalator chain includes a mounting shell 1, which is fixedly connected inside the escalator housing 01. Inside the escalator housing 01, there is a chain 02 and a sprocket 03 that drive the moving walkway escalator. An oil nozzle 2 is fixedly mounted on the end face of the mounting shell 1 facing the chain 02. The oil spraying direction of the oil nozzle 2 is set towards the chain 02. An oil supply assembly 3 that supplies lubricating oil to the oil nozzle 2 is provided on the mounting shell 1.
[0035] Reference Figure 2 and Figure 3 The fuel supply assembly 3 includes a fuel tank 31 fixedly installed on the top wall of the mounting housing 1. An elastic oil bladder 32 is fixedly connected to the bottom wall of the fuel tank 31. The fuel tank 31 is provided with a fuel supply pipeline (not shown in the figure) communicating with the elastic oil bladder 32. The fuel supply pipeline includes a first fuel supply pipe 33 vertically installed inside the fuel tank 31. The first fuel supply pipe 33 is a rigid oil pipe and its end extends into the elastic oil bladder 32. A second fuel supply pipe 34 is connected to the first fuel supply pipe 33. The second fuel supply pipe 34 is a rubber hose and is connected to the fuel injector 2.
[0036] Reference Figure 2 and Figure 3 An extrusion plate 35 is slidably connected inside the oil supply tank 31. The outer surface of the extrusion plate 35 is tightly fitted to the inner wall of the oil supply tank 31. A first screw 36 is rotatably connected inside the oil supply tank 31. The extrusion plate 35 is threaded onto the first screw 36. The cross-sections of both the oil supply tank 31 and the extrusion plate 35 are square to limit the relative rotation between the oil supply tank 31 and the extrusion plate 35. A motor 4 for driving the first screw 36 to rotate is fixedly installed on the oil supply tank 31.
[0037] Reference Figures 1 to 3 A UV light source 5 and a fluorescence sensor 6 are fixedly installed on the end face of the mounting housing 1 facing the chain 02. The fluorescence sensor 6 is electrically connected to the motor 4 through the control system.
[0038] UV light source 5 continuously emits ultraviolet light. The lubricating oil on the surface of chain 02 fluoresces under the excitation of ultraviolet light. When the fluorescence sensor 6 detects that the fluorescence intensity is lower than the preset threshold, the control system controls the motor 4 to start. The motor 4 drives the first screw 36 to rotate. The rotation of the first screw 36 drives the extrusion block to move toward the elastic oil bladder 32. When the extrusion plate 35 extrudes the elastic oil bladder 32, the volume of the oil cavity in the elastic oil bladder 32 decreases. The lubricating oil is transported to the oil nozzle 2 along the first oil supply pipe 33 and the second oil supply pipe 34. The oil nozzle 2 sprays the lubricating oil onto the chain 02, thereby achieving lubrication of the chain 02 sprocket 03. This setting realizes automatic oiling of the chain 02 without the need for manual entry into the chain 02 installation space inside the escalator to manually add oil, thereby improving the oiling efficiency.
[0039] Meanwhile, the fluorescent sensor 6 and UV light source 5 enable precise monitoring of the lubrication status of chain 02 and on-demand lubrication, thereby improving the intelligence level and lubrication efficiency of the lubrication mechanism.
[0040] Reference Figure 2 and Figure 3 A guide groove 311 is provided on the inner wall of the oil supply tank 31. The length direction of the guide groove 311 is parallel to the length direction of the oil supply tank 31. The end of the extrusion plate 35 facing the guide groove 311 is fixedly connected to a guide block 351 that slides with the guide groove 311. Under the guidance of the guide block 351 and the guide groove 311, the extrusion block will move along the vertical direction of the oil supply tank 31. This avoids the possibility of displacement due to the pushing force of the elastic oil bladder 32 when the extrusion block extrudes the elastic oil bladder 32. This makes the extrusion operation of the extrusion block on the elastic oil bladder 32 more stable, ensuring uniform force during each extrusion. This ensures that the lubricating oil can be delivered to the oil nozzle 2 through the oil supply pipeline at a relatively stable flow rate, providing a stable and uniform lubrication effect for the chain 02.
[0041] Reference Figure 2 and Figure 3 A dust-collecting ring 7 is fixedly connected to the end face of the mounting shell 1 facing the chain 02. The dust-collecting ring 7 is sleeved on the outer surface of the fuel injector 2. Multiple dust-collecting nozzles 71 are evenly connected around the dust-collecting ring 7. The suction direction of the multiple dust-collecting nozzles 71 is facing the chain 02. An air cylinder 8 is fixedly installed on the outer top wall of the mounting shell 1. The air cylinder 8 is located on one side of the fuel supply tank 31. An air pipe 81 connected to the dust-collecting ring 7 is installed at the end of the air cylinder 8 facing the mounting shell 1. In this embodiment, the air pipe 81 is a rubber hose. A piston block 82 is slidably connected inside the air cylinder 8. A drive assembly 9 is provided on the air cylinder 8. The drive assembly 9 drives the piston block 82 to move back and forth along the length of the air cylinder 8.
[0042] Reference Figure 2 and Figure 3 The drive assembly 9 includes a second screw 91 rotatably connected inside the air cylinder 8, a piston block 82 threadedly connected to the second screw 91, and the piston block 82 and its cross-section are square to restrict the rotation of the piston block 82 inside the air cylinder 8. The end of the first screw 36 extends out of the oil supply tank 31 and is coaxially fixedly connected to the first gear 92. The end of the second screw 91 extends out of the air cylinder 8 and is coaxially fixedly connected to the second gear 93. A drive gear 94 that meshes with the first gear 92 and the second gear 93 is rotatably connected to the mounting housing 1. The drive gear 94 is coaxially fixedly connected to the motor 4. In the initial state, the piston block 82 is located at the end of the air cylinder 8 near the mounting housing 1, and the compression block is located at the end of the oil supply tank 31 away from the mounting housing 1, with a gap between the compression block and the elastic oil bladder 32.
[0043] Reference Figure 2 and Figure 3A dust collection box 10, which communicates with the inside of the air cylinder 8, is fixedly installed on the surface of the mounting shell 1. An electrostatic dust collection plate (not shown in the figure) is fixedly installed on the inner side wall of the dust collection box 10.
[0044] When the fluorescent sensor 6 controls the motor 4 to start, the motor 4 drives the drive gear 94 to rotate. The drive gear 94 drives the first gear 92 and the second gear 93 to rotate in opposite directions. At this time, the first gear 92 drives the first screw 36 to rotate in the forward direction, and the first screw 36 drives the extrusion plate 35 to move towards the elastic oil bladder 32. During this process, the second gear 93 drives the second screw 91 to rotate in the reverse direction, and the second screw 91 drives the piston block 82 to move away from the mounting shell 1. At this time, the gas space inside the air cylinder 8 increases, the pressure decreases, and the suction... A negative pressure environment is formed in the connected space formed by the dust ring 7 and the air cylinder 8. Under the action of negative pressure, the dust on the surface of the chain 02 is absorbed into the dust collection box 10 through the dust suction nozzle 71. The electrostatic dust suction plate adsorbs and fixes the dust and impurities in the dust collection box 10. When the extrusion block moves to contact the elastic oil bladder 32, the oil spray nozzle 2 applies oil to the chain 02 that has been suctioned. This setting realizes the cleaning of the chain 02 before oiling, so that the lubricating oil can better adhere to the surface of the chain 02 and form a continuous and uniform oil film, thereby improving the lubrication effect after the lubricating oil is added.
[0045] After cleaning, the motor 4 drives the drive gear 94 to reverse, at which point the piston block 82 and the compression block reset to prepare for the next oiling operation. During the resetting process of the piston block 82, the gas inside the air cylinder 8 is blown out from the dust suction nozzle 71. Because the electrostatic dust suction plate adsorbs and fixes the dust and impurities in the dust collection box 10, it prevents the dust from re-attaching to the surface of the chain 02 along the blown airflow, thereby further ensuring the lubrication effect of the lubricating oil.
[0046] Reference Figure 3 and Figure 4 An oil reservoir 11 is fixedly connected to the end of the housing 1 away from the chain 02. The oil reservoir 11 contains lubricating oil. An oil outlet 12 is provided on the bottom surface of the oil reservoir 11. An oil delivery pipe 111 is fixedly installed on the bottom surface of the oil reservoir 11. The oil delivery pipe 111 connects the oil outlet 12 and the elastic oil bladder 32.
[0047] Reference Figure 3 and Figure 4 Limiting grooves 121 are provided on the inner sidewalls opposite to the oil outlet 12. The length direction of the limiting grooves 121 is parallel to the length direction of the oil delivery pipe 111. Limiting blocks 13 are slidably connected in the two limiting grooves 121. A sealing plate 14 is connected to both limiting blocks 13. The sealing plate 14 is inverted U-shaped. A sealing ring 141 is fitted on the outer surface of the sealing plate 14 near the oil storage tank 11. The sealing ring 141 is made of elastic material. A sealing groove 122 is provided on the inner sidewall of the oil outlet 12 to be inserted and matched with the sealing ring 141.
[0048] Reference Figure 3 and Figure 4 An electromagnetic block 15 is fixedly connected to the end of the limiting groove 121 near the oil tank 11. The electromagnetic block 15 is controlled to be powered on and off by the control system. The limiting block 13 is an iron block. When the electromagnetic block 15 attracts the limiting block 13, the surface of the sealing plate 14 extends into the oil tank 11. When the limiting block 13 is located at the end of the limiting groove 121 away from the electromagnetic block 15, the sealing plate 14 blocks the oil outlet 12, and the sealing ring 141 is inserted into the sealing groove 122.
[0049] When the lubricating oil inside the elastic oil bladder 32 decreases, the electromagnetic block 15 is energized, and the electromagnetic block 15 attracts the limiting block 13. The limiting block 13 moves towards the electromagnetic block 15. The movement of the limiting block 13 causes the sealing plate 14 to gradually extend into the oil tank 11. At this time, the sealing state of the oil outlet 12 is canceled, and the lubricating oil in the oil tank 11 flows into the elastic oil bladder 32 through the oil outlet 12 and the oil delivery pipe 111 under the action of gravity, thereby replenishing the lubricating oil in the elastic oil bladder 32.
[0050] When the amount of lubricating oil in the elastic oil bladder 32 reaches a suitable level, the electromagnetic block 15 is de-energized, the magnetic field disappears, and the limiting block 13 slides towards the end of the limiting groove 121 away from the electromagnetic block 15 under the gravity of itself and the oil inside the oil tank 11. The movement of the limiting block 13 causes the sealing plate 14 to return to its initial position, and the sealing plate 14 blocks the oil outlet 12. At the same time, the sealing ring 141 is inserted into the sealing groove 122, effectively preventing the lubricating oil in the oil tank 11 from flowing into the elastic oil bladder 32 from the gap between the oil outlet 12 and the sealing plate 14, thus avoiding overfilling of the oil bladder. This setting realizes the automatic replenishment of the amount of lubricating oil inside the elastic oil bladder 32, ensuring a sufficient supply of lubricating oil to meet the lubrication needs of the chain 02, and ensuring that the escalator chain 02 can be continuously and effectively lubricated.
[0051] The implementation principle of an oiling mechanism for a moving walkway escalator chain in this application embodiment is as follows: UV light source 5 continuously emits ultraviolet rays, and the lubricating oil on the surface of chain 02 generates fluorescence under the excitation of ultraviolet rays. When the fluorescence sensor 6 detects that the fluorescence intensity is lower than a preset threshold, the control system controls the motor 4 to start. The motor 4 drives the first screw 36 to rotate. The rotation of the first screw 36 drives the extrusion block to move towards the elastic oil bladder 32. When the extrusion block extrudes the elastic oil bladder 32, the volume of the oil cavity in the elastic oil bladder 32 decreases, and the lubricating oil is transported to the oil nozzle 2 along the first oil supply pipe 33 and the second oil supply pipe 34. The oil nozzle 2 sprays the lubricating oil onto the chain 02, thereby achieving lubrication of the chain sprocket 03. This setting realizes automatic oiling of the chain 02 without the need for manual entry into the chain 02 installation space inside the escalator to manually add oil, thereby improving the oiling efficiency.
[0052] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. An oiling mechanism for an escalator chain, comprising a mounting housing (1) disposed inside an escalator housing (01), characterized in that, The mounting housing (1) is provided with an oil nozzle (2), the oil nozzle (2) is directed toward the chain (02) and the mounting housing (1) is provided with an oil supply assembly (3), the oil supply assembly (3) includes an oil supply tank (31), an elastic oil bladder (32) is provided on the bottom wall of the oil supply tank (31), the oil supply tank (31) is provided with an oil supply pipeline communicating with the oil nozzle (2), an extrusion plate (35) is slidably connected inside the oil supply tank (31), a first screw (36) is rotatably connected inside the oil supply tank (31), the extrusion plate (35) is threadedly connected to the first screw (36), the oil supply tank (31) is provided with a motor (4) for driving the first screw (36) to rotate, and the cross-section of the oil supply tank (31) and the extrusion plate (35) are both square.
2. The oiling mechanism for a pedestrian escalator chain according to claim 1, characterized in that, A dust-collecting ring (7) is provided on the mounting shell (1). The dust-collecting ring (7) is sleeved on the outer surface of the fuel injector (2). A plurality of dust-collecting nozzles (71) are evenly arranged around the dust-collecting ring (7). The suction direction of the plurality of dust-collecting nozzles (71) is directed toward the chain (02). An air cylinder (8) is provided on the mounting shell (1). The air outlet of the air cylinder (8) is connected to the dust-collecting ring (7) through an air pipe (81). A piston block (82) is slidably connected inside the air cylinder (8). A drive assembly (9) is provided on the air cylinder (8). The drive assembly (9) drives the piston block (82) to move along the length direction of the air cylinder (8).
3. The oiling mechanism for a pedestrian escalator chain according to claim 2, characterized in that, The drive assembly (9) includes a second screw (91) rotatably connected inside the air cylinder (8), a piston block (82) threadedly connected to the second screw (91), the end of the first screw (36) extending outside the oil supply tank (31) and provided with a first gear (92), the end of the second screw (91) extending outside the air cylinder (8) and provided with a second gear (93), and the output shaft of the motor (4) is provided with a drive gear (94) that meshes with the first gear (92) and the second gear (93).
4. The oiling mechanism for a pedestrian escalator chain according to claim 1, characterized in that, The inner wall of the oil supply tank (31) is provided with a guide groove (311), and the extrusion plate (35) is provided with a guide block (351) that slides with the guide groove (311).
5. The oiling mechanism for a pedestrian escalator chain according to claim 3, characterized in that, The mounting housing (1) is provided with a dust collection box (10) that communicates with the air cylinder (8), and an electrostatic dust collection plate is provided on the inner side wall of the dust collection box (10).
6. The oiling mechanism for a pedestrian escalator chain according to claim 1, characterized in that, The oil supply tank (31) is equipped with an oil storage tank (11). An oil outlet (12) is provided on the bottom surface of the oil storage tank (11). An oil delivery pipe (111) communicating with the elastic oil bladder (32) is provided at the oil outlet (12). A limiting groove (121) is provided on the inner side wall opposite to the oil outlet (12). A limiting block (13) is slidably connected in the two limiting grooves (121). The limiting block (13) is an iron block. A sealing plate (14) is provided on the two limiting blocks (13). The sealing plate (14) is inverted U-shaped. The end of the limiting groove (121) near the oil tank (11) is provided with an electromagnetic block (15) for adsorbing the limiting block (13). When the electromagnetic block (15) adsorbs the limiting block (13), the surface of the sealing plate (14) extends into the oil tank (11). When the limiting block (13) is located at the end of the limiting groove (121) away from the electromagnetic block (15), the sealing plate (14) blocks the oil outlet (12).
7. The oiling mechanism for a pedestrian escalator chain according to claim 6, characterized in that, A sealing ring (141) is fitted on the outer surface of the sealing plate (14). The sealing ring (141) is made of elastic material. A sealing groove (122) is provided on the inner side wall of the oil outlet (12) to be inserted into the sealing ring (141). When the limiting block (13) is located at the end of the limiting groove (121) away from the electromagnetic block (15), the sealing ring (141) is inserted into the sealing groove (122).
8. The oiling mechanism for a pedestrian escalator chain according to claim 1, characterized in that, The mounting housing (1) is provided with a UV light source (5) and a fluorescence sensor (6), and the fluorescence sensor (6) is electrically connected to the motor (4) through the control system.