Elevator head sheave with lubrication function and lining block

Abstract

The present application relates to the technical field of hoist head sheave lubrication, and discloses a hoist head sheave with lubrication function and a pad, which comprises a head sheave and a pad, the head sheave is provided with a groove for accommodating the pad, the bottom of the groove is provided with a protrusion extending outward along a direction perpendicular to the axis of the head sheave, the outer end of the protrusion is provided with an oil inlet channel extending towards the axis of the head sheave, the oil inlet channel is in communication with a shaft hole at the center of the head sheave, the pad is internally provided with a cavity for accommodating lubricating oil, and the bottom of the pad is provided with an interface matched with the protrusion. Compared with the conventional technology, the present application combines the lubricating oil and the pad into one, saves the two steps of supplementing the lubricating oil and replacing the pad into one, reduces the stop of the head sheave once, and improves the working efficiency of the hoist.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of hoist head sheave lubrication, and particularly relates to a hoist head sheave with lubrication function and a lining block. BACKGROUND

[0002] The head sheave is a fixed pulley at the top of the mine shaft headframe, which supports the steel wire rope connecting the hoist drum and the lifting container and guides the steel wire rope to change direction. On the one hand, due to poor air quality in the mine area, the lubrication condition between the head sheave and the head sheave shaft is poor, so it is necessary to add lubricating oil regularly to avoid excessive wear of the bearing between the head sheave shaft and the head sheave, thereby reducing the service life of the head sheave. On the other hand, the lining block in the head sheave is a wearing part, which needs to be replaced with a new one after a period of use to ensure the normal operation of the head sheave.

[0003] At present, whether adding lubricating oil or replacing the lining block in the head sheave is carried out separately, and the operation of the head sheave needs to be stopped, and each stop of the head sheave operation will affect the overall work efficiency of the hoist.

[0004] Therefore, it is necessary to provide a hoist head sheave with lubrication function and a lining block to reduce the number of head sheave stoppage and improve the overall work efficiency of the hoist. SUMMARY

[0005] The present application aims to solve the problem of low overall work efficiency of the hoist caused by the need to stop the head sheave operation for lubrication and lining block replacement in the prior art, and provides a hoist head sheave with lubrication function and a lining block.

[0006] The technical scheme of the present application is as follows:

[0007] A hoist head sheave with lubrication function and a lining block, comprising a head sheave and a lining block, wherein the head sheave is provided with a groove for accommodating the lining block, the bottom of the groove is provided with a protrusion extending outward along the direction perpendicular to the head sheave axis, the outer end of the protrusion is provided with an oil inlet channel extending towards the head sheave axis, and the oil inlet channel is in communication with the shaft hole at the center of the head sheave; the lining block is internally provided with a cavity for accommodating lubricating oil, the bottom of the lining block is provided with an interface, and the interface is matched with the protrusion.

[0008] Further, a one-way valve is arranged in the oil inlet channel.

[0009] Further, filter cotton is arranged in the cavity of the lining block.

[0010] Further, a baffle is arranged at the interface of the lining block, and the baffle can be detached.

[0011] Further, a sealing gasket is mounted at the interface of the lining block, and the sealing gasket is fixedly connected with the inner wall of the interface.

[0012] Further, the interface of the bush is provided with a first clamping post, the outer sidewall of the protrusion is provided with a second clamping post matched with the first clamping post, and the relative fixation of the protrusion and the interface is realized through the clamping of the first clamping post and the second clamping post.

[0013] Further, the first clamping post and the second clamping post are annular, and the cross-sectional shape is semicircular.

[0014] Further, the outer surface of the second clamping post is fixed with a sealing gasket.

[0015] Further, the protrusions at the bottom of the groove are multiple and are uniformly distributed in the circumferential direction around the axis of the sheave.

[0016] Further, the protrusion is a cylinder.

[0017] The sheave and the bush with the lubricating function are provided with a cavity for containing lubricating oil, when the bush is fixed in the groove of the sheave, the interface at the bottom of the bush is connected with the protrusion in the groove, and when the sheave rotates, the lubricating oil in the cavity of the bush above the sheave is affected by gravity, gradually passes through the interface and the oil inlet channel, and enters the shaft hole of the sheave, thereby continuously lubricating the sheave shaft and the bearing bush in the shaft hole, the bush can be replaced regularly to prevent excessive wear, and the new bush is replaced, the lubricating oil in the cavity of the new bush continues to lubricate the sheave shaft and the bearing bush, compared with the traditional technology, the lubricating oil and the bush are combined into one, two steps of supplementing the lubricating oil and replacing the bush are saved into one step, the operation of the sheave is stopped once, and the working efficiency of the elevator is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is the front view of the present application;

[0019] Figure 2 is the front view of the first embodiment of the present application; Figure 1 is the sectional view of A-A;

[0020] Figure 3 is the front view of the first embodiment of the present application; Figure 2 is the enlarged view of B in the first embodiment of the present application;

[0021] Figure 4 is the front view of the second embodiment of the present application; Figure 1 is the sectional view of A-A;

[0022] Figure 5 is the front view of the second embodiment of the present application; Figure 4 is the enlarged view of C in the second embodiment of the present application.

[0023] Reference numerals: 1. Sheave; 2. Liner; 3. Groove; 4. Protrusion; 5. Oil inlet channel; 6. Shaft hole; 7. Cavity; 8. Interface; 9. One-way valve; 10. Filter cotton; 11. Second clamping platform; 12. Sealing gasket; 13. First clamping platform. Detailed Implementation

[0024] To make the technical means, technical features, inventive purpose and technical effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0025] Example 1:

[0026] like Figure 1 and Figure 2 As shown, this embodiment provides a hoist sheave 1 and a liner 2 with lubrication function, including a sheave 1 and a liner 2. The sheave 1 is provided with a groove 3 for accommodating the liner 2. The bottom of the groove 3 is provided with a protrusion 4 extending outward in a direction perpendicular to the axis of the sheave 1. An oil inlet channel 5 extending in the direction of the axis of the sheave 1 is opened on the outer end of the protrusion 4. The oil inlet channel 5 communicates with the shaft hole 6 at the center of the sheave 1. The liner 2 is provided with a cavity 7 for accommodating lubricating oil. The bottom of the liner 2 is provided with an interface 8, which matches the protrusion 4.

[0027] Preferably, a one-way valve 9 is provided in the oil inlet channel 5. The one-way valve 9 allows the lubricating oil to flow only from the cavity 7 to the oil inlet channel 5 and prevents it from flowing in the opposite direction. This prevents the bearing bush in the shaft hole 6 of the sheave 1 and the metal debris generated by the sheave 1 shaft due to friction from entering the cavity 7 and accumulating over a long period of time to block the interface 8 and the oil inlet channel 5.

[0028] Preferably, a baffle is provided at the interface 8 of the liner 2. The baffle can be removed to block the interface 8 and prevent the lubricating oil in the liner 2 from flowing out. When the liner 2 is installed, the baffle is removed so that the interface 8 is connected to the protrusion 4.

[0029] Preferably, a sealing gasket is installed at the interface 8 of the liner 2, and the sealing ring is fixedly connected to the inner wall of the interface 8. Preferably, a first locking platform is provided inside the interface 8 of the liner 2, and a second locking platform 11 matching the first locking platform is provided on the outer wall of the protrusion 4. The first locking platform and the second locking platform 11 engage to fix the protrusion 4 and the interface 8 relative to each other. Specifically, the sealing gasket at the interface 8 is located on the outer surface of the first locking platform. Preferably, the first locking platform and the second locking platform 11 are annular and have a semi-circular cross-sectional shape. Preferably, a sealing gasket is fixed on the outer surface of the second locking platform 11. Specifically, the sealing gasket can completely cover the outer surfaces of the first locking platform and the second locking platform 11. Preferably, the sealing gasket is made of rubber.

[0030] Preferably, the protrusions 4 at the bottom of the groove 3 are provided in plurality and are evenly distributed circumferentially around the axis of the sheave 1.

[0031] Preferably, the protrusions 4 are in the shape of a cylinder.

[0032] Preferably, the service life of the lubricating oil in the cavity 7 is as long as or close to the service life of the pad 2.

[0033] During installation, the pad 2 is pressed into the groove 3 of the sheave 1. The interface 8 is matched with the protrusion 4. The first and second clamping platforms 11 are clamped to achieve the fixation between the pad 2 and the sheave 1. The single-way valve 9 in the pad 2 can prevent the metal debris from blocking the interface 8 and the oil inlet channel 5. During the operation of the elevator, the sheave 1 rotates. The lubricating oil in the pad 2 above the sheave 1 is affected by gravity, flows into the shaft hole 6 of the sheave 1 through the interface 8 and the oil inlet channel 5, and lubricates the shaft of the sheave 1. After a period of use, the lubricating oil in the pad 2 has been exhausted. At this time, the pad 2 needs to be replaced due to wear. The pad 2 is removed and replaced with a new pad 2 for continuous use. The technical solution mainly uses the lubricating oil in the pad 2 to achieve the replacement of the new and old pads 2 and the replacement of the lubricating oil in the actual work of the sheave 1, which shortens the time of the sheave 1 by half compared with the traditional elevator, reduces the time and frequency of the sheave 1 stopping operation, improves the working efficiency of the sheave 1, and further improves the overall working efficiency of the elevator.

[0034] Embodiment two:

[0035] A sheave 1 and a pad 2 with lubricating function, comprising the sheave 1 and the pad 2. The sheave 1 is provided with a groove 3 for accommodating the pad 2. The bottom of the groove 3 is provided with a protrusion 4 extending outward along the direction perpendicular to the axis of the sheave 1. The outer end of the protrusion 4 is provided with an oil inlet channel 5 extending to the axis of the sheave 1. The oil inlet channel 5 is communicated with a shaft hole 6 at the center of the sheave 1. The inside of the pad 2 is provided with a cavity 7 for accommodating lubricating oil. The bottom of the pad 2 is provided with an interface 8 matched with the protrusion 4.

[0036] Preferably, the cavity 7 of the pad 2 is provided with filter cotton 10. Since the oil inlet channel 5 is communicated with the interface 8 and the oil inlet channel 5 is communicated with the shaft hole 6 of the sheave 1, the bearing bush in the shaft hole 6 and the shaft of the sheave 1 will generate metal debris due to friction during use. The new lubricating oil in the cavity 7 can enter the shaft hole 6, and the lubricating oil in the shaft hole 6 carrying the metal debris can also enter the cavity 7. The filter cotton 10 can filter the lubricating oil entering the cavity 7, adsorbing the metal debris on the filter cotton 10, purifying the lubricating oil, and preventing the interface 8 and the oil inlet channel 5 from being blocked by long-term accumulation.

[0037] Preferably, the interface 8 of the lining block 2 is provided with a baffle, which can be detached, for plugging the interface 8 to prevent the lubricating oil in the lining block 2 from flowing out. When the lining block 2 is installed, the baffle is detached, and the interface 8 is connected with the protrusion 4.

[0038] Preferably, a sealing gasket is installed at the interface 8 of the lining block 2, and the sealing gasket is fixedly connected with the inner wall of the interface 8. Preferably, a first clamping post is arranged in the interface 8 of the lining block 2, and a second clamping post 11 matched with the first clamping post is arranged on the outer side wall of the protrusion 4. The first clamping post and the second clamping post 11 are clamped to realize the relative fixation of the protrusion 4 and the interface 8. Specifically, the sealing gasket at the interface 8 is located on the outer surface of the first clamping post. Preferably, the first clamping post and the second clamping post 11 are annular, and the cross-sectional shape is semicircular. Preferably, a sealing gasket is fixedly arranged on the outer surface of the second clamping post 11. Specifically, the sealing gasket can wrap the outer surfaces of the first clamping post and the second clamping post 11. Preferably, the sealing gasket is made of rubber.

[0039] Preferably, a plurality of protrusions 4 are arranged at the bottom of the groove 3, and are uniformly distributed around the axis of the head sheave 1.

[0040] Preferably, the protrusion 4 is in the shape of a cylinder.

[0041] Preferably, the service life of the lubricating oil in the cavity 7 is as long as or close to the service life of the lining block 2.

[0042] When installed, the lining block 2 is pressed in the groove 3 of the head sheave 1. Since the interface 8 and the protrusion 4 are matched in size, the fixation between the lining block 2 and the head sheave 1 can be realized through the clamping of the first clamping post and the second clamping post 11. The single-way valve 9 in the lining block 2 can prevent metal debris from blocking the interface 8 and the oil inlet channel 5. During the working process of the elevator, the head sheave 1 rotates. With the rotation of the head sheave 1, the lubricating oil in the lining block 2 located above the head sheave 1 is subjected to the action of gravity, flows into the shaft hole 6 of the head sheave 1 through the interface 8 and the oil inlet channel 5, and realizes the lubrication of the shaft of the head sheave 1. With the rotation of the head sheave 1, the lubricating oil in the shaft hole 6 of the head sheave 1 is subjected to the action of gravity, flows into the cavity 7 in the lining block 2 located below the head sheave 1 through the interface 8 and the oil inlet channel 5. The filter cotton 10 in the cavity 7 can filter the metal debris and other impurities in the lubricating oil, which purifies the lubricating oil on one hand and avoids the blocking of the oil inlet channel 5 and the interface 8 on the other hand.

[0043] When the lining block 2 is used for a period of time, the lubricating oil in the lining block 2 has been drained, at this time, the lining block 2 also needs to be replaced due to wear, at this time, the lining block 2 is taken down, a new lining block 2 is replaced, and the use is continued, the technical scheme mainly utilizes that the lining block 2 is provided with lubricating oil, so that the head sheave 1 only needs to stop running once in actual work, that is, two processes of replacement of new and old lining blocks 2 and replacement of lubricating oil are completed, the time is shortened by one time compared with the traditional head sheave 1 of the elevator, the time and the number of stop of the head sheave 1 are reduced, the working efficiency of the head sheave 1 is improved, and then the working efficiency of the whole elevator is improved.

[0044] The above is only the preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any equivalent changes and modifications made according to the content of the present application patent application scope shall belong to the technical scope of the present application.

Claims

1. A hoist head sheave and bushing with lubrication function, comprising a head sheave (1) and a bushing (2), the head sheave (1) is provided with a groove (3) for accommodating the bushing (2), characterized in that: The bottom of the recess (3) is provided with a protrusion (4) extending outward along the direction perpendicular to the axis of the crown wheel (1), an oil inlet channel (5) extending along the axis of the crown wheel (1) is formed on the outer end of the protrusion (4), and the oil inlet channel (5) is in communication with a shaft hole (6) at the center of the crown wheel (1); The inside of the pad (2) is provided with a cavity (7) containing lubricating oil, and the bottom of the pad (2) is provided with an interface (8) matched with the protrusion (4); A one-way valve (9) is arranged in the oil inlet channel (5). The cavity (7) of the pad (2) is provided with filter cotton (10).

2. The hoist head sheave and bushing with lubrication function according to claim 1, characterized in that: A baffle is arranged at the interface (8) of the pad (2), and the baffle can be detached.

3. The hoist head sheave and bushing with lubrication function according to claim 1, characterized in that: A sealing gasket is arranged at the interface (8) of the pad (2) and fixedly connected with the inner wall of the interface (8).

4. The hoist head sheave and bushing with lubrication function according to claim 1, characterized in that: A first clamping post is arranged in the interface (8) of the pad (2), a second clamping post (11) matched with the first clamping post is arranged on the outer side wall of the protrusion (4), and the first clamping post and the second clamping post (11) are clamped to realize the relative fixation of the protrusion (4) and the interface (8).

5. The hoist head sheave and bushing with lubrication function according to claim 4, characterized in that: The first clamping post and the second clamping post (11) are annular and have a semicircular cross section.

6. The hoist head sheave and bushing with lubrication function according to claim 4, characterized in that: A sealing gasket is fixed to the outer surface of the second clamping post (11).

7. The hoist head sheave and bushing with lubrication function according to claim 1, characterized in that: A plurality of protrusions (4) are arranged at the bottom of the recess (3) and are evenly distributed around the axis of the crown wheel (1).

8. The hoist head sheave and bushing with lubrication function according to claim 1, characterized in that: The protrusion (4) is a cylinder.

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