Elevator rope wheel bearing lubricating mechanism
By designing the lubrication mechanism of elastic retaining ring, oil filling hole, oil drain hole and cleaning brush on the elevator rope and wheel bearing, the problem of ineffective lubrication caused by improper grease filling is solved, extending the bearing life and reducing maintenance costs.
Patent Information
- Application Number
- CN202421756458.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-24
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-07-24
AI Technical Summary
The lubrication design of existing elevator rope bearings is unreasonable, resulting in inadequate or excessive grease filling, resulting in invalid lubrication or accelerated bearing wear, and the life is less than expected.
A lubricating mechanism including rope wheels, bearings, elastic retaining rings, oil injection holes, oil discharge holes, oil transport mechanisms and cleaning brushes are designed to block oil leakage through elastic retaining rings, and excess grease is cleaned with support rods and cleaning brushes. The oil transport mechanism achieves precise filling and impurities discharge of grease.
It achieves sufficient lubrication of bearings, extends the life of rope bearings, saves maintenance costs, and ensures the normal operation of bearings.
Smart Images
Figure CN223047045U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of elevator rope wheel bearing lubrication, and specifically relates to an elevator rope wheel bearing lubrication mechanism. Background Technique
[0002] Most of the elevator rope wheels on the current market adopt sealed bearings. During the use process, due to various reasons, the grease performance inside the bearings decreases, and the expected design life and effect cannot be achieved; in addition, the replacement of elevator rope wheels is relatively complicated, resulting in a large amount of economic expenditure for the owner unit. However, the existing bearing lubrication mechanisms still have the following disadvantages in actual use:
[0003] Some rope wheels are equipped with a design for the re-lubrication oil path of the bearings. However, due to unreasonable design, it is easy to cause the grease not to be filled in place, resulting in ineffective lubrication, or too much grease being filled, causing difficulties in bearing pressure and heat dissipation, accelerating bearing wear, and the service life of the rope wheels falling far short of expectations. In view of the above problems, there is an urgent need to innovate and design on the basis of the original bearing lubrication mechanism. Content of the Utility Model
[0004] The purpose of the utility model is to provide an elevator rope wheel bearing lubrication mechanism to solve the problems in the above background technique that some rope wheels are equipped with a design for the re-lubrication oil path of the bearings, but due to unreasonable design, it is easy to cause the grease not to be filled in place, resulting in ineffective lubrication, or too much grease being filled, causing difficulties in bearing pressure and heat dissipation, accelerating bearing wear, and the service life of the rope wheels falling far short of expectations.
[0005] To achieve the above purpose, the utility model provides the following technical solution: An elevator rope wheel bearing lubrication mechanism, including a rope wheel, a bearing is fixedly attached to the inside of the rope wheel, and elastic retaining rings are arranged on both sides of the bearing. A shaft rod is fixedly penetrated through the inside of the bearing, and the rope wheel and the shaft rod form a relative rotation structure through the bearing;
[0006] It further includes: a connecting piece fixedly sleeved on the middle position of the shaft rod, an oil injection hole is opened on the inner side of the rope wheel, and an oil injection plug is arranged inside the oil injection hole. An oil drain hole is opened on the rope wheel on the side opposite to the oil injection hole, and an oil drain plug is arranged inside the oil drain hole;
[0007] An oil transmission mechanism is arranged between the rope wheel and the bearing.
[0008] Preferably, the elastic retaining ring is arranged between the inner ring and the outer ring of the bearing, and the elastic retaining ring seals the gap between the inner ring and the outer ring of the bearing. Through the arrangement of the elastic retaining ring, the grease for bearing lubrication can be prevented from leaking out.
[0009] Preferably, the connecting member and the inner ring of the bearing are fixedly connected, and there is a space between the outer wall of the connecting member and the inner wall of the rope wheel, which facilitates the discharge of excess grease or impurities into the bearing interior.
[0010] Preferably, a support rod is fixed to the outer wall of the connecting member, and the support rod has a "T" shape. Cleaning brushes are evenly arranged on the cross bar of the support rod. When the rope wheel rotates, the shaft rod and the connecting member remain stationary, facilitating the cleaning brushes to sweep on the inner wall of the rope wheel.
[0011] Preferably, the oil delivery mechanism includes a first channel provided on the inner wall of the rope wheel, and the oil injection hole is interconnected with the second channel through the first channel. The second channel is annularly formed on the inner wall of the rope wheel. Grease can be injected into the first channel through the oil injection hole and then transferred to the second channel.
[0012] Preferably, connection holes are equiangularly reserved on the outer wall of the bearing, and the connection holes are communicated with the drain hole through the space between the connecting member and the rope wheel. The grease in the second channel can flow to the inner side of the bearing through the connection holes for lubrication.
[0013] Preferably, elastic ropes are fixed to the ends of the oil injection plug and the drain plug, and both elastic ropes are fixedly connected to the rope wheel. The oil injection plug and the drain plug are connected to the rope wheel through the elastic ropes, which can prevent the plugs from being lost after being pulled out.
[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: This elevator rope wheel bearing lubrication mechanism solves the problems of non-re-lubricability, ineffective re-lubrication, and over-lubrication of the rewind rope wheel bearing. Under reasonable maintenance, it enables the bearing rollers or balls to be fully lubricated in the raceway, extends the life of the rope wheel bearing, and saves the replacement and repair costs of the user unit. The specific content is as follows:
[0015] 1. When the rope wheel rotates, the shaft rod remains stationary. Therefore, the cleaning brushes can be driven by the support rod to sweep on the inner wall of the rope wheel, collecting excess grease or impurities on its inner wall and finally discharging them through the drain hole, preventing them from affecting the normal operation of the bearing.
[0016] 2. When the bearing needs lubrication, lubricating grease is injected into the first channel through the oil injection hole. The lubricating oil then enters the second channel and flows to the inner side of the bearing through the connection holes for lubrication. Then, the excess grease can be discharged through the drain hole, or the cleaned impurities can be discharged together. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a front view structural diagram of the present utility model;
[0018] Figure 2 is a front sectional structural diagram of the present utility model;
[0019] Figure 3 Schematic diagram of the enlarged structure at position A in the present utility model Figure 2 ;
[0020] Figure 4 Schematic diagram of the enlarged structure at position B in the present utility model Figure 2 ;
[0021] Figure 5 Front view structural diagram of the bearing of the present utility model
[0022] Figure 6 Front view structural diagram of the support rod of the present utility model
[0023] In the figure: 1, rope pulley; 2, bearing; 3, elastic retaining ring; 4, shaft rod; 5, connecting piece; 51, support rod; 52, cleaning brush; 6, oil injection hole; 7, oil injection plug; 8, elastic rope; 9, first channel; 10, second channel; 11, connection hole; 12, oil drain hole; 13, oil drain plug Specific embodiments
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model
[0025] Please refer to Figures 1 - 6 , the present utility model provides the following technical solutions
[0026] Embodiment 1: To solve the problems existing in the prior art, therefore, in this embodiment, through the following technical solutions, a lubrication mechanism for an elevator rope pulley bearing includes a rope pulley 1, a bearing 2 is fixedly attached to the inside of the rope pulley 1, and elastic retaining rings 3 are respectively attached to both sides of the bearing 2. A shaft rod 4 is fixedly penetrated through the inside of the bearing 2, and the rope pulley 1 and the shaft rod 4 form a relative rotation structure through the bearing 2; it further includes: a connecting piece 5, fixedly sleeved on the middle position of the shaft rod 4, an oil injection hole 6 is opened on the inner side of the rope pulley 1, and an oil injection plug 7 is arranged inside the oil injection hole 6. An oil drain hole 12 is opened on the rope pulley 1 on the side opposite to the oil injection hole 6, and an oil drain plug 13 is arranged inside the oil drain hole 12; an oil transmission mechanism, arranged between the rope pulley 1 and the bearing 2
[0027] After the existing lubrication mechanism lubricates the bearing 2, there will be excess grease, or impurities will be generated after long-term lubrication, and there is a lack of a structure for cleaning and discharging the excess grease and impurities, such as Figure 1 and Figures 5 - 6As shown in the figure, the elastic retaining ring 3 is arranged between the inner ring and the outer ring of the bearing 2, and the elastic retaining ring 3 seals the gap between the inner ring and the outer ring of the bearing 2; the connecting piece 5 and the inner ring of the bearing 2 are fixedly connected, and there is a space between the outer wall of the connecting piece 5 and the inner wall of the rope pulley 1; a support rod 51 is fixed on the outer wall of the connecting piece 5, and the support rod 51 is of a "T" - shaped structure, and cleaning brushes 52 are uniformly arranged on the cross bar of the support rod 51; when the rope pulley 1 rotates, it can rotate on the shaft rod 4 through the bearing 2, and when the rope pulley 1 rotates, the shaft rod 4 remains stationary. Therefore, the cleaning brushes 52 can be driven by the support rod 51 to sweep on the inner wall of the rope pulley 1, collect the excess grease or impurities on its inner wall, and finally discharge them through the oil drain hole 12, so as to avoid affecting the normal operation of the bearing 2.
[0028] Embodiment 2: Some existing rope pulleys 1 are equipped with a design for the re - lubricating oil path of the bearing 2. However, due to unreasonable design, it is easy to cause the grease not to be filled in place, resulting in ineffective lubrication, or too much grease being filled, causing difficulties in bearing 2 pressure bearing and heat dissipation, accelerating the wear of the bearing 2, and the service life of the rope pulley 1 far falling short of expectations. Therefore, in this embodiment, through the following technical solutions, as Figures 2 - 5 As shown in the figure, the oil - conveying mechanism includes a first channel 9 arranged on the inner wall of the rope pulley 1, and the oil injection hole 6 is interconnected with the second channel 10 through the first channel 9, and the second channel 10 is annularly arranged on the inner wall of the rope pulley 1; equally - angled connection holes 11 are reserved on the outer wall of the bearing 2, and the connection holes 11 are communicated with the oil drain hole 12 through the space between the connecting piece 5 and the rope pulley 1; elastic ropes 8 are fixed at the ends of the oil injection plug 7 and the oil drain plug 13, and both elastic ropes 8 are fixedly connected to the rope pulley 1; when the bearing 2 needs to be lubricated, the oil injection plug 7 is pulled out from the oil injection hole 6, and then the oil drain plug 13 is pulled out from the oil drain hole 12. This can improve the smoothness of oil injection, ensure the timely release of the pressure in the entire bearing 2 chamber during refueling, ensure that the grease can be easily pushed to the predetermined position, extend the service life of the rope pulley 1. The lubricating grease is injected into the first channel 9 from the oil injection hole 6, and then the lubricating oil enters the second channel 10 and flows from the connection hole 11 to the inner side of the bearing 2 for lubrication. Then the excess grease can be discharged through the oil drain hole 12, or the cleaned impurities can be discharged together. When the oil injection plug 7 and the oil drain plug 13 are pulled out, they are both connected to the rope pulley 1 through the elastic ropes 8, which can prevent the plugs from being lost and facilitate quickly plugging the oil injection plug 7 and the oil drain plug 13 subsequently.
[0029] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. An elevator sheave bearing lubrication mechanism, comprising a sheave (1), a bearing (2) being fixedly attached to the inside of the sheave (1), and elastic retaining rings (3) being fixedly attached to both sides of the bearing (2), a shaft (4) being fixedly passed through the inside of the bearing (2), and the sheave (1) forming a relative rotation structure through the bearing (2) and the shaft (4); It is characterized in that Also includes: A connecting member (5) is fixedly sleeved at a middle position of the shaft (4); an oil filling hole (6) is provided on the inner side of the rope wheel (1), and an oil filling plug (7) is provided inside the oil filling hole (6); an oil drain hole (12) is provided on the rope wheel (1) on the side opposite to the oil filling hole (6), and an oil drain plug (13) is provided inside the oil drain hole (12); The oil delivery mechanism is arranged between the rope pulley (1) and the bearing (2).
2. The elevator sheave bearing lubrication mechanism according to claim 1, characterized in that: The elastic retaining ring (3) is arranged between the inner ring and the outer ring of the bearing (2), and the elastic retaining ring (3) seals the gap between the inner ring and the outer ring of the bearing (2).
3. The elevator sheave bearing lubrication mechanism according to claim 1, characterized in that: The connecting member (5) and the inner ring of the bearing (2) are fixedly connected, and a space is left between the outer wall of the connecting member (5) and the inner wall of the rope wheel (1).
4. The elevator sheave bearing lubrication mechanism according to claim 1, characterized in that: A support rod (51) is fixed to the outer wall of the connecting member (5), and the support rod (51) is a "T"-shaped structure, and cleaning brushes (52) are evenly arranged on the crossbar of the support rod (51).
5. The elevator sheave bearing lubrication mechanism according to claim 4, characterized in that: The oil delivery mechanism comprises a first channel (9) arranged on the inner wall of the rope wheel (1), and the oil injection hole (6) is connected to the first channel (9) and the second channel (10) through the first channel (9), and the second channel (10) is opened in the inner wall of the rope wheel (1) in an annular shape.
6. The elevator sheave bearing lubrication mechanism according to claim 1, characterized in that: The outer wall of the bearing (2) is provided with connection holes (11) at equal angles, and the connection holes (11) are connected to the space between the rope wheel (1) and the oil drain hole (12) through the connection piece (5).
7. The elevator sheave bearing lubrication mechanism according to claim 1, characterized in that: Elastic ropes (8) are fixed to the ends of the oil filling plug (7) and the oil drain plug (13), and the two elastic ropes (8) are fixedly connected to the rope wheel (1).