An oiling type hanging pulley

Abstract

This invention discloses an oiled hanging pulley, comprising: a pulley body; and an oiling mechanism that moves with the pulley body, the oiling mechanism applying oil to the rolling surface of the pulley body when its position changes; the rolling surface includes the roller surface of the pulley body and a guide surface that contacts the pulley body during sliding. This invention solves the problems of smooth sliding and short service life caused by wear between hanging pulleys or rails, avoiding existing wear handling methods. It eliminates the need to remove or replace the hanging pulleys or rails, reducing wear caused by large workloads, and reducing steps, thereby reducing workload. Oiling slows down the wear rate of the rollers and rails, allowing them to continue sliding smoothly even after normal wear.

Description

Technical Field

[0001] This invention relates to the field of hanging pulleys, and more particularly to an oiled hanging pulley. Background Technology

[0002] Hanging pulleys are typically used in conjunction with sliding rails fixed to the door frame to suspend the door leaf, thus enabling the door to slide horizontally. However, in practice, it has been found that over prolonged use, both the rollers and the sliding rails of the hanging pulleys will experience wear. The amount of wear is positively correlated with the number of uses; that is, the more frequently it is used, the greater the wear. In other words, the higher the usage frequency, the faster the wear. Furthermore, once the wear reaches a certain level, the sliding of the door leaf will be affected, resulting in uneven sliding.

[0003] Currently, the usual way to deal with wear and tear is to disassemble the door body, remove the hanging pulleys or rails, and replace them. However, this is a huge amount of work. Therefore, an oiled hanging pulley is proposed. Summary of the Invention

[0004] To overcome at least one of the defects described in the prior art, the present invention provides an oiled hanging pulley. This solves the problems of slippage and short service life caused by wear between the hanging pulley or rail, avoids disassembling the hanging pulley or rail, reduces wear caused by large workloads, reduces steps, and avoids tedious processes.

[0005] The technical solution adopted by this invention to solve its problem is:

[0006] An oiling type hanging pulley includes a pulley body and an oiling mechanism that moves with the pulley body; wherein the oiling mechanism applies oil to the rolling surface of the pulley body when the position changes.

[0007] By adopting the above solution, the object on the rolling surface is protected by applying oil, thereby increasing the smoothness of sliding.

[0008] Furthermore, the oiling mechanism includes an oil tank and an oil guide body, with one part of the oil guide body located inside the oil tank and the other part applying oil to the rolling surface of the pulley body.

[0009] By adopting the above solution, the rolling surface of the pulley body is oiled through the oil guide, and the oil tank can temporarily store some lubricating oil to ensure continuous oil output from the oil guide. Furthermore, oiling the tank is convenient and the oil output is smooth. The rolling surface includes the roller surface of the pulley body and the guide surface that contacts the pulley body during sliding. Oiling can be selectively applied between the roller surface and the guide surface, or both can be oiled, offering high selectivity and a more user-friendly design.

[0010] Furthermore, the oiling mechanism is vertically connected to the upward movement of the pulley body, the oil tank includes an oil cap and an oil storage shell A, the oil cap presses against the oil guide body, and the oiling part of the oil guide body extends out from the bottom of the oil tank for oiling the guide surface of the pulley body.

[0011] By adopting the above scheme, the guide surface along the pulley body is coated with oil by the oiling mechanism to achieve the lubrication effect. During the sliding process, the guide surface is pressed by the pressing structure inside the oil tank to achieve a uniform oiling effect. In addition, it can retract upward during the sliding process to improve the smoothness of sliding.

[0012] Furthermore, the pulley body is provided with a second oil guiding structure, which contacts the roller of the pulley body and is used to apply oil to the roller of the pulley body.

[0013] By adopting the above solution, the oil obtained by the roller from the guide surface can be evenly applied through the second oil guiding structure, avoiding oil accumulation on the roller surface, improving the lubrication effect, avoiding material waste, and also cleaning the roller surface.

[0014] Furthermore, the oil cap and the oil storage housing A are respectively provided with a snap-fit ​​element and a snap-fit ​​groove, and the oil cap is pressed against the oil guide body by an elastic element.

[0015] By adopting the above solution, the entire oil tank is detachably connected, making refueling convenient. The internal oil guide can be controlled to extend and retract through elastic elements, improving its contraction stability. Furthermore, the inner wall of the oil tank limits the oil guide, solving the problem of shaking caused by excessive range of motion, further reducing kinetic energy loss and decreasing the sliding resistance of the rollers.

[0016] Furthermore, the oiling mechanism is mounted on the pulley body, and the oil tank includes a cover and an oil storage shell C. The oil storage shell C is provided with an oil outlet groove, and the oil guide body enters the oil storage shell C from the oil outlet groove and extends out of the oil storage shell C. The oil guide body located outside the oil storage shell C contacts the roller of the pulley body.

[0017] By adopting the above scheme, oil is drawn from the oil storage shell C through both ends of the oil guide body, making the oil flow smoother. The oil is applied to the surface of the roller through contact with the roller, resulting in a good oiling effect and smoother rolling after lubrication.

[0018] Furthermore, the oil storage housing C is provided with a fourth oil guiding structure that is perpendicular to the sliding direction of the pulley body, and the fourth oil guiding structure is in contact with the guide surface of the pulley body.

[0019] By adopting the above solution, the oil layer on the guide surface of the pulley body is evenly coated, which further reduces sliding resistance, improves smoothness, and can also clean the guide surface.

[0020] Furthermore, the cover and the oil storage housing C are respectively provided with a snap-fit ​​element and a snap-fit ​​groove, and the cover is pressed against the oil guide body by an elastic element.

[0021] By adopting the above solution, the entire fuel tank can be detached, making refueling convenient. The internal oil guide is fixed by downward pressing with elastic elements, improving its stability.

[0022] Furthermore, a pressure plate is provided between the oil guide body and the oil storage shell C, and the pressure plate clamps the oil guide body inside the oil storage shell C.

[0023] By adopting the above solution, the oil guide body is clamped and fixed by the pressure plate, which prevents the oil guide body from detaching from the oil tank due to the large friction between the oil guide body and the roller.

[0024] Furthermore, the material of the oil guide includes felt, oil brush, or brush cotton, which expands and blocks the oil outlet when it absorbs oil.

[0025] By adopting the above solution, the felt or cotton yarn can smoothly guide oil, achieve good oiling effect, and after absorbing oil and expanding, it can block the oil outlet or oil groove to prevent oil leakage.

[0026] In summary, the oiled hanging pulley provided by the present invention has the following technical effects:

[0027] 1) By setting an oil guide body, the oil coating on the rolling surface of the pulley body can be made uniform;

[0028] 2) By applying oil to the guide surfaces of the rollers and / or pulley bodies, the rollers and guide surfaces are protected, increasing the smoothness of sliding;

[0029] 3) Applying oil slows down the wear rate of the rollers and slide rails, allowing them to slide smoothly even after normal wear.

[0030] 4) It avoids existing methods of dealing with wear and tear, eliminating the need to remove or replace the hanging pulleys or rails, thus reducing workload. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural diagram of Embodiment 1 of the present invention;

[0032] Figure 2 This is a schematic diagram of a partial explosion structure according to Embodiment 1 of the present invention;

[0033] Figure 3 This is a cross-sectional structural diagram of Embodiment 1 of the present invention;

[0034] Figure 4 This is an exploded structural diagram of the oiling mechanism in Embodiment 1 of the present invention;

[0035] Figure 5 This is a three-dimensional structural schematic diagram of Embodiment 2 of the present invention;

[0036] Figure 6 This is a cross-sectional structural diagram of Embodiment 2 of the present invention;

[0037] Figure 7 This is a schematic diagram of a partial explosion structure in Embodiment 2 of the present invention;

[0038] Figure 8 This is a three-dimensional structural schematic diagram of Embodiment 3 of the present invention;

[0039] Figure 9 This is a cross-sectional structural diagram of Embodiment 3 of the present invention;

[0040] Figure 10 This is a schematic diagram of a partial explosion structure in Embodiment 3 of the present invention.

[0041] The meanings of the reference numerals in the attached drawings are as follows: 1. Pulley body; 11. Pulley frame; 111. Shaft hole; 112. Fixed rod; 12. Roller; 13. Roller shaft; 2. Oiling mechanism; 3. Oil tank; 31. Oil cap; 311. Snap-fit ​​part; 32. Oil storage shell A; 321. Snap-fit ​​groove; 322. Snap-fit ​​platform; 33. Elastic element; 34. Cover body; 341. Through hole; 342. First pressing device; 343. Stud; 35. Oil storage shell B; 351. Oil outlet groove; 36. Second pressing device; 361. Screw; 37. Support groove; 38. Pressure plate; 39. Oil storage shell C; 4. Oil guide body; 41. Oiling part; 411. Limiting structure; 42. Snap-fit ​​part; 5. Second oil guide structure; 6. Third oil guide structure; 7. Fourth oil guide structure. Detailed Implementation

[0042] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described and discussed below with reference to the accompanying drawings. Obviously, what is described here is only a part of the examples of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the protection scope of this invention.

[0043] To facilitate understanding of the embodiments of the present invention, further explanations and descriptions will be provided below with reference to the accompanying drawings and specific embodiments, and these embodiments do not constitute a limitation on the embodiments of the present invention.

[0044] In the description of this invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0046] See Figures 1-4 This invention discloses an oiled hanging pulley, comprising:

[0047] Pulley body 1: The guide surface along which it slides changes position. In an embodiment of the present invention, the pulley body 1 is a four-wheel pulley, including a pulley frame 11 and rollers 12. Each side of the pulley frame 11 is provided with two rollers 13, and the rollers 12 rotate about the rollers 13.

[0048] Oiling mechanism 2: It moves along with the pulley body 1. When the position changes, the oiling mechanism 2 applies oil to the rolling surface of the pulley body 1. The rolling surface includes the surface of the roller 12 of the pulley body 1 and the guide surface that contacts the pulley body 1 when sliding.

[0049] Specifically, the oiling mechanism 2 applies oil to the rollers 12 of the pulley body 1 when its position changes, and / or applies oil to the guide surface where the pulley body 1 is located. By applying oil to the rolling surface, objects on the rolling surface are protected, thereby increasing the smoothness of sliding.

[0050] The oiling mechanism 2 includes an oil tank 3 and an oil guide 4. A portion of the oil guide 4 is located inside the oil tank 3, and the other portion contacts the rolling surface, allowing the oil guide 4 to apply oil to the roller 12 and / or the guide surface when the pulley body 1 changes position. The oil tank 3 can temporarily store some lubricating oil, ensuring continuous and smooth oil flow from the oil guide 4. Adding oil to the oil tank 3 is more convenient, and after oiling through the oil guide 4, an overall lubrication effect is achieved on the rolling surface.

[0051] It should be noted that the roller 12 and the guide surface are in contact with each other. Therefore, it can be understood that when one or both are coated with oil, the lubrication effect of both can be achieved. Therefore, the amount of oil applied is not specifically specified in this invention.

[0052] Reference Figures 2-4 As shown, the specific configuration of this embodiment 1 is as follows: the oiling mechanism 2 is located at one end of the pulley frame 11, and the fixing method is not limited. The oil tank 3 includes an oil cap 31 and an oil storage shell A 32. The oil cap 31 and the oil storage shell A 32 are fastened together. The oil cap 31 and the oil guide body 4 are connected by a spring 33. The upper and lower ends of the spring 33 are respectively fixed to the oil cap 31 and the oil guide body 4. The spring 33 can be a spring or a spring washer, etc. The oil guide body 4 includes an oiling part 41 and a locking part 42. The locking part 42 is located within the oil storage shell A 32 and moves longitudinally. The bottom end of the oiling part 41 is longer than the locking part 42. The protruding oiling part 41 extends from the bottom of the oil tank 3, with the protruding part facing the guide surface, for oiling the guide surface. The bottom end of the oiling part 41 is provided with a groove that matches the rolling surface. The oiling mechanism 2 applies oil to the guide surface along the pulley body 1 to achieve a lubrication effect. During the sliding process, the elastic element 33 inside the oil tank 3 provides downward pressure, which can press and coat the guide surface evenly to achieve a uniform oiling effect. It also prevents the oil guide body 4 from absorbing oil and expanding, which would push open the oil cap 31. Furthermore, it can retract upward when encountering resistance during the sliding process, thus improving the smoothness of the sliding.

[0053] A shaft hole 111 is also provided between the two rollers 12 on the same side of the pulley frame 11. A fixing rod 112 is provided in the shaft hole 111. The fixing rod 112 is fixedly connected to a second oil guiding structure 5. The top surface and bottom surface of the second oil guiding structure 5 are horizontal. The two sides of the second oil guiding structure 5 are curved. The curved surfaces contact the rollers 12 on both sides. The oil obtained by the rollers 12 from the guide surface can be evenly coated through the second oil guiding structure 5, so as to avoid the accumulation of oil on the surface of the rollers 12, improve the lubrication effect, and avoid material waste.

[0054] It should be noted that the fixing rod 112 shown can be a screw or a rod-shaped object, and is only used for the detachable connection of the second oil guiding structure 5, making it convenient to replace the second oil guiding structure 5.

[0055] The thickness of the second oil guiding structure 5 is not limited and can be adjusted according to the size of the roller 12 to complete the rubbing and coating of the roller 12 surface.

[0056] Furthermore, the oil cap 31 is provided with snap-fit ​​parts 311 on both sides, and the oil storage housing A 32 is provided with slots 321 on both sides. The oil cap 31 is fixed to the oil storage housing A 32 by snapping the snap-fit ​​parts 311 into the slots 321. The positions of the snap-fit ​​parts 311 and the slots 321 are interchangeable. This structure is only used to fix the oil cap 31 to the oil storage housing A 32, and it is easy to disassemble. A limiting structure 411 is provided on one side of the oil coating part 41 of the oil guide body 4. The limiting structure 411 is stepped. A locking platform 322 corresponding to the limiting structure 411 is provided on the inner wall of one side of the oil storage shell A 32. The stepped planes of the two correspond one-to-one. The oil tank 3 is detachably connected as a whole, making refueling convenient. The internal oil guide bodies 4 are in contact with each other through the stepped surfaces of the limiting structure 411, which can limit the range of motion of the oil guide bodies 4, improve the expansion and contraction stability of its elastic structure, solve the shaking problem caused by too large a range of motion, further reduce kinetic energy loss, and reduce the sliding resistance of the roller 12.

[0057] The specific implementation steps and principles of Embodiment 1 of the present invention are as follows:

[0058] Oil is added to the oil storage housing A 32 to ensure normal oil flow. Then, the pulley body 1 is hoisted into the guide surface. Upper limiters are installed at both ends of the guide surface to adjust the position of the pulley body 1 according to the door height. The upper end of the oil guide body 4 in the oiling mechanism 2 absorbs the oil inside the oil storage housing A 32. At this time, the oil guide body 4 expands and blocks the oil outlet to prevent lubricating oil leakage, similar to the principle of a wooden bucket that prevents water leakage. When the pulley body 1 moves along the guide surface, the lower end of the oil guide body 4 contacts the guide surface to apply oil. When the roller 12 moves to the oiled guide surface, the oil layer will be unevenly adhered to the surface of the roller 12. Then, the second oil guide structure 5 evenly spreads the oil layer on the surface of the roller 12, preventing the irregular oil layer on the surface of the roller 12 from being affected by resistance during the movement. After oiling, the friction between the roller 12 and the guide surface is reduced, reducing the wear effect between them. Under normal wear conditions, smooth movement can be achieved, improving service life.

[0059] Reference Figures 5-7As shown, the specific configuration of this embodiment 2 is as follows: the oiling mechanism 2 is located between two rollers 12 on the same side of the pulley frame 11. One end of the pulley frame 11 is provided with a third oil guiding structure 6 perpendicular to the sliding direction of the pulley body. The oil tank 3 includes a cover 34 and an oil storage shell B 35. The cover 34 is snapped into the oil storage shell B 35. Oil outlet grooves 351 are provided on both sides of the oil storage shell B 35. Each side of the oil outlet groove 351 is located at the top of the side wall of the oil storage shell B 35. The two ends of the oil guiding body 4 pass through the oil outlet groove 351 at the top of the same side and enter the interior of the oil storage shell B 35. The oil guiding body 4 located outside the oil storage shell B 35 contacts the rollers 12 and is used to apply oil to the rollers 12. Oil is drawn from the oil storage shell B 35 through the two ends of the oil guiding body 4, making the oil flow smoother. The oiling effect is good and the oil flow is smooth by contacting the rollers 12.

[0060] It should be noted that the third oil guiding structure 6 is detachably connected to the pulley frame 11, and the specific connection method is not limited, the purpose being to facilitate the addition of lubricating oil. After the surface of the roller 12 is coated with oil, it slides along the guide surface, and the guide surface will be covered with oil. The purpose of the third oil guiding structure 6 is to evenly coat the oil on the surface of the roller 12 covered by multiple guide surfaces, improve the smoothness of the guide surface, and make the roller 12 slide smoothly.

[0061] In this embodiment 2, the cover 34 is provided with a through hole 341, and a first clamping device 342 is snapped into the through hole 341. The first clamping device 342 provides downward pressure on the upper end of the oil guide body 4. A stud 343 is provided at the bottom of the cover 34, and the stud 343 can be wound around the oil guide body 4. After the position of the oil guide body 4 is adjusted, the first clamping device 342 is installed for initial positioning, and then the cover 34 is installed. The first clamping device 342 and the inner wall of the oil storage shell B 35 clamp and fix the upper end of the oil guide body 4. More specifically, a second clamping device 36 is provided at the bottom of the oil storage shell B 35. By installing the second clamping device 36, the second clamping device 36 and the outer wall of the oil storage shell B 35 clamp and fix the lower end of the oil guide body.

[0062] In this configuration, the second clamping device 36 is inserted into the bottom of the oil reservoir housing B 35 via a screw 361 and threadedly connected to the stud 343, simultaneously securing the cover 34 and the second clamping device 36. This prevents the oil guide 4 from detaching from the oil tank 3 due to excessive friction between the oil guide 4 and the roller 12. The above solution is only a specific connection method in this embodiment 2 and is not the only one; other connection methods can be applied similarly to achieve the purpose of detachable connection.

[0063] It should be noted that a sealing ring is provided on the screw 361 of the second clamping device 36 to prevent oil leakage or seepage at the bottom of the oil tank 3 housing.

[0064] Furthermore, grooves 37 are provided on both sides of the bottom surface of the cover 34 and the top surface of the second pressing device 36. The grooves 37 engage with the oil guide body 4, securing the oil guide body 4 and further improving the stability of both ends of the oil guide body 4. This prevents the oil guide body 4 from detaching from the oil tank 3 when the roller 12 slides. The grooves 37 are semi-cylindrical, allowing them to fit tightly against the cylindrical oil guide body 4.

[0065] The specific implementation steps and principles of Embodiment 2 of the present invention are as follows:

[0066] Oil is added to the oil reservoir B35 to ensure normal oil flow. Then, the pulley body 1 is hoisted into the guide surface. Upper limiters are installed at both ends of the guide surface to adjust the position of the pulley body 1 according to the door height. The oil guide body 4 in the oiling mechanism 2 absorbs the oil inside the oil reservoir B35 at both ends. After absorbing the lubricating oil, the oil guide body 4 expands and blocks the oil outlet groove 351 to prevent oil leakage. When the pulley body 1 moves along the guide surface, oil is applied to the roller 12 through the contact between the oil guide body 4 and the roller 12. As the roller 12 moves, some oil on its surface adheres to the guide surface. The third oil guiding structure 6 is equipped with a downward-facing oil brush. The oil brush spreads the oil layer evenly on the guide surface as the roller 12 rolls, avoiding excessive resistance to the roller 12 during movement. After oiling, the friction between the roller 12 and the guide surface is reduced, reducing wear and tear. Under normal wear conditions, smooth movement is achieved, improving service life.

[0067] Reference Figures 8-10 As shown, the specific configuration of this embodiment 3 is as follows: the oiling mechanism 2 is disposed on the pulley body 1, the oil tank 2 includes a cover 34 and an oil storage shell C 39, the bottom of the oil storage shell C 39 is provided with a channel, the channel is slidably connected to a fourth oil guiding structure 7, the fourth oil guiding structure 7 slides perpendicular to the pulley body 1, the fourth oil guiding structure 7 contacts the guide surface of the pulley body 1, and is used to evenly coat the oil layer on the guide surface of the sliding pulley body, further reducing sliding resistance and improving smoothness, and at the same time can play the role of cleaning the guide surface.

[0068] Oil outlet grooves 351 are provided on both sides of the connection between the oil storage housing C 39 and the cover 34. The oil guide body 4 is plate-shaped and is inserted vertically into the oil outlet groove 351. The oil guide body 4 located outside the oil storage housing C 39 contacts the roller 12 of the pulley body 1. Oil is drawn from the oil storage housing C 39 through both ends of the oil guide body 4, making the oil outlet smoother. The oil is applied to the surface of the roller 12 by contact with the roller 12, resulting in a good oiling effect and smoother rolling after lubrication.

[0069] Furthermore, the cover and the oil storage housing C 39 are respectively provided with a snap-fit ​​element 311 and a slot 321. The cover 34 presses the oil guide body 4 with an elastic element 33, which is a spring. The oil storage housing C 39 is detachably connected for convenient refueling. The internal oil guide body 4 is pressed and fixed downward by the elastic element 33 to improve its stability. Pressure plates 38 are provided between the two sides of the oil guide body 4 and the oil storage housing C 39. The two pressure plates 38 clamp the oil guide body 4 inside the oil storage housing C 39, and fix the oil guide body 4 by clamping it to prevent the oil guide body 4 from detaching from the oil tank due to high friction between the oil guide body 4 and the roller 12.

[0070] The specific implementation steps and principles of Embodiment 3 of the present invention are as follows:

[0071] Oil is added to the oil storage housing C39 to ensure normal oil flow. Then, the pulley body 1 is hoisted into the guide surface, where upper limiters are installed at both ends. The position of the pulley body 1 is adjusted according to the door height. In the oiling mechanism 2, the oil guide body 4 absorbs the oil inside the oil storage housing C39. The portions of the oil guide body 4 that are engaged with the oil outlet groove 351 on both sides expand after absorbing the lubricating oil, thus blocking the oil outlet groove 351 to prevent oil leakage. When the pulley body 1 moves along the guide surface, oil is applied to the roller 12 through the contact between the two sides of the oil guide body 4 and the roller 12. As the roller 12 moves, some of the oil on its surface adheres to the guide surface. The fourth oil guide structure 7 is equipped with a downward-facing oil brush. When the roller 12 rolls, the oil brush spreads the oil layer evenly on the guide surface and cleans the guide surface. This prevents the roller 12 from experiencing significant resistance during movement. After being oiled, the friction between the roller 12 and the guide surface is reduced, thus reducing wear. Under normal wear conditions, smooth movement can be achieved, improving service life.

[0072] In embodiments 1-3 of the present invention, the materials of the second oil-guiding structure 5, the third oil-guiding structure 6, the fourth oil-guiding structure 7, and the oil-guiding body 4 include felt, oil brush, brush cotton, or other materials that facilitate oil flow. Different materials can be selected according to different structures to provide better oil flow and coating effects. For example, in embodiment 1 of the present invention, the oil-guiding material of the second oil-guiding structure 5 is felt or brush cotton; the oil-guiding material of the oil-guiding body 4 is brush cotton. In embodiment 2 of the present invention, the oil-guiding material of the third oil-guiding structure 6 is felt or oil brush; the oil-guiding material of the oil-guiding body 4 is felt or oil brush. In embodiment 3 of the present invention, the oil-guiding material of the fourth oil-guiding structure 7 is felt or oil brush, and the oil-guiding material of the oil-guiding body 4 is oil brush.

[0073] The embodiments of the present invention effectively solve the problems of rolling jamming of the roller 12 in the pulley body 1 and wear between the roller 12 and the guide surface track; and the overall oiling is uniform, the steps are simple, and the service life is longer.

[0074] The technical means disclosed in this invention are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of this invention, and these improvements and modifications are also considered within the scope of protection of this invention.

Claims

1. A greased hanger pulley characterized by: include: The pulley body (1) includes a pulley frame (11) and a roller (12). The pulley frame (11) has two rollers (13) on each side, and the roller (12) rotates around the rollers (13) as an axis. An oiling mechanism (2) moves along with the pulley body (1). The oiling mechanism (2) is perpendicular to the direction of movement of the pulley body (1) and is used to apply oil to the guide surface of the pulley body (1). The oiling mechanism (2) includes an oil tank (3) and an oil guide (4). Part of the oil guide (4) is located inside the oil tank (3), and another part protrudes from the bottom of the oil tank (3) to contact the guide surface. The pulley body (1) is provided with a second oil guiding structure (5), which is located between the two rollers (12) on the same side. It is detachably connected to the pulley body (1) via a fixing rod (112) and contacts the two rollers (12) to uniformly apply the oil obtained by the rollers (12) from the guide surface.

2. The oiling type suspension pulley according to claim 1, wherein: The oil tank (3) includes an oil cap (31) and an oil storage shell A (32). The oil cap (31) presses against the oil guide body (4). The oil coating part (41) of the oil guide body (4) extends out from the bottom of the oil tank (3).

3. A greased pendant pulley according to claim 2, characterized in that: The oil cap (31) and the oil storage housing A (32) are respectively provided with a snap-fit ​​member (311) and a snap-fit ​​groove (321), and the oil cap (31) is pressed against the oil guide body (4) by an elastic member (33).

4. The oiling type suspension pulley according to claim 1, wherein: The oil guide (4) is made of felt, oil brush or brush cotton. When the oil guide (4) absorbs oil, it expands and blocks the oil outlet.

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