Annular self-lubricating sealing element

Abstract

The utility model discloses an annular self-lubricating sealing element which comprises a sealing mechanism and a lubricating mechanism, the sealing mechanism comprises a rotating shaft, a rubber sleeve connected to the outer side of the rotating shaft in a sleeved mode, a plurality of bolts connected between the rubber sleeve and the rotating shaft, and a shell movably connected to the outer side of the rubber sleeve in a sleeved mode. The rotating shaft vertically and movably penetrates through the top and the bottom of the shell. When the rotating shaft drives the rubber sleeve to rotate, the scraper rotates along with the rotating shaft, then lubricating oil in the annular oil cavity upwells along the scraper, in the process, most of the lubricating oil falls back into the annular oil cavity again through the through holes, and then a small part of the lubricating oil comes to the top end of the scraper and enters the position between the rotating shaft and the rubber sleeve through the oil inlet shallow groove. In this way, the lubricating purpose is achieved, consumption of lubricating oil is reduced, the oil supplementing frequency of workers is reduced, and the use comfort level of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a plating layer technical field, concretely is a ring self -lubricating sealing element. BACKGROUND

[0002] Mechanical seal is the device that prevents fluid leakage by at least one pair of end face perpendicular to the rotation axis under the action of fluid pressure and elastic force of compensation mechanism and the cooperation of auxiliary seal and relative sliding.

[0003] The mechanical sealing element with the self-lubricating structure disclosed in the application number CN202222082468.2 is provided with a self-lubricating structure, which can self-lubricate the contact surfaces of the dynamic ring, the static ring and the shaft rod during the rotation of the shaft rod, ensure the smoothness of the rotation of the shaft rod, facilitate the addition of lubricating oil, and has the function of self-lubrication; the cylindrical shell is used for installing the first spring, the first spring acts as an elastic compensation member to push the annular push plate and the dynamic ring against the bottom surface of the static ring, the sealing structure is arranged between the dynamic ring and the static ring to improve the airtightness therebetween, and the sliding connection structure is arranged between the dynamic ring and the upper end of the cylindrical shell to facilitate the movement of the dynamic ring. When the application is used, the lubricating oil is consumed quickly, and the staff needs to add oil in a very short period of time, which makes the use inconvenient. UTILITY MODEL CONTENT

[0004] The utility model aims at solving one of the technical problems existing in the prior art or related art.

[0005] To this end, the utility model adopts the technical scheme that:

[0006] A ring self-lubricating sealing element, comprising a sealing mechanism and a lubricating mechanism, the sealing mechanism comprises a rotating shaft, a rubber sleeve sleeved on the outer side of the rotating shaft, a plurality of bolts connected between the rubber sleeve and the rotating shaft, and a shell movably sleeved on the outer side of the rubber sleeve, the rotating shaft is vertically and movably penetrated through the top and bottom of the shell, and the lubricating mechanism comprises a partition ring connected with the inner cavity bottom of the shell, an annular oil cavity formed between the shell and the partition ring, a scraper slidably installed inside the annular oil cavity and connected with the rubber sleeve, an oil inlet shallow groove opened in the top of the rubber sleeve, and a plurality of through holes opened on the scraper, the partition ring is attached to the bottom of the rubber sleeve and movably sleeved on the outer side of the rotating shaft.

[0007] By adopting the technical scheme, when the rotating shaft rotates with the rubber sleeve, the scraper rotates, then the lubricating oil in the annular oil cavity flows along the scraper, in the process, most of the lubricating oil falls back into the annular oil cavity through the plurality of through holes, then a small part of the lubricating oil reaches the top end of the scraper, and then enters between the rotating shaft and the rubber sleeve through the oil inlet shallow groove, so that the lubrication purpose is achieved, and the consumption of the lubricating oil is slowed down, the oil supplement frequency of workers is reduced, and the use comfort of the device is improved.

[0008] In a preferred example, the rubber sleeve is provided with a plurality of insertion holes, the plurality of insertion holes are arranged at equal intervals in a ring shape, and the plurality of bolts are located in the plurality of insertion holes.

[0009] In a preferred example, a plug is inserted into the insertion hole, and the plug is located outside the bolt.

[0010] In a preferred example, the scraper is arranged in an inclined manner, and the plurality of through holes on the scraper are arranged at equal intervals in a diagonal direction.

[0011] In a preferred example, a plug rod is movably inserted into one side of the shell, and the inner end of the plug rod extends into the shell.

[0012] In a preferred example, a spring is sleeved outside the rotating shaft, the spring is located inside the partition ring, the top end of the spring is attached to the bottom of the rubber sleeve, and the bottom end of the spring is fixedly connected to the inner cavity bottom of the rotating shaft.

[0013] By adopting the technical scheme, the utility model has the beneficial effects of:

[0014] 1. In the utility model, when the rotating shaft rotates with the rubber sleeve, the scraper rotates, then the lubricating oil in the annular oil cavity flows along the scraper, in the process, most of the lubricating oil falls back into the annular oil cavity through the plurality of through holes, then a small part of the lubricating oil reaches the top end of the scraper, and then enters between the rotating shaft and the rubber sleeve through the oil inlet shallow groove, so that the lubrication purpose is achieved, and the consumption of the lubricating oil is slowed down, the oil supplement frequency of workers is reduced, and the use comfort of the device is improved.

[0015] 2. In the utility model, after the rubber sleeve is fixed outside the rotating shaft through the bolt, the top end of the spring is pressed against the bottom of the rubber sleeve, so that the bottom of the rubber sleeve is deformed, the deformed part is tightly attached to the rotating shaft, and the sealing property between the rubber sleeve and the rotating shaft is effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the housing of this utility model;

[0018] Figure 3 This is a schematic diagram of the sealing mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the lubrication mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the spring mounting position for this utility model.

[0021] Figure label:

[0022] 100. Sealing mechanism; 110. Rotating shaft; 120. Rubber sleeve; 130. Bolt; 140. Housing;

[0023] 200. Lubrication mechanism; 210. Isolation ring; 220. Annular oil chamber; 230. Scraper; 240. Shallow oil inlet groove;

[0024] 300. End cap;

[0025] 400. Insert rod;

[0026] 500. Spring. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0028] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0029] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, providing an annular self-lubricating seal. Example 1

[0030] Combination Figures 1-5 As shown, the present invention provides an annular self-lubricating seal, including a sealing mechanism 100 and a lubrication mechanism 200. The sealing mechanism 100 includes a rotating shaft 110, a rubber sleeve 120 sleeved on the outside of the rotating shaft 110, a plurality of bolts 130 connecting the rubber sleeve 120 and the rotating shaft 110, and a housing 140 movably sleeved on the outside of the rubber sleeve 120. The rotating shaft 110 is vertical and movably passes through the top and bottom of the housing 140.

[0031] The lubrication mechanism 200 includes a partition ring 210 connected to the bottom of the inner cavity of the housing 140, an annular oil cavity 220 formed between the housing 140 and the partition ring 210, a scraper 230 slidably installed inside the annular oil cavity 220 and connected to the rubber sleeve 120, an oil inlet shallow groove 240 opened at the top of the rubber sleeve 120, and a plurality of through holes opened on the scraper 230. The partition ring 210 fits against the bottom of the rubber sleeve 120 and is movably sleeved on the outside of the rotating shaft 110.

[0032] Furthermore, the scraper 230 is inclined, and the multiple through holes on the scraper 230 are equally spaced and obliquely arranged. The layout design of the scraper 230 allows the lubricating oil in the annular oil cavity 220 to slowly rise, so that the lubricating oil in the annular oil cavity 220 can reach between the rotating shaft 110 and the rubber sleeve 120.

[0033] Furthermore, a spring 500 is sleeved on the outside of the rotating shaft 110. The spring 500 is located inside the partition ring 210. The top end of the spring 500 is in contact with the bottom of the rubber sleeve 120, and the bottom end of the spring 500 is fixed to the bottom of the inner cavity of the rotating shaft 110. The spring 500 can push the rubber sleeve 120 upward and tighten it, thereby improving the installation firmness of the rubber sleeve 120. Example 2

[0034] Combination Figures 2-4 As shown, based on Embodiment 1, the rubber sleeve 120 is provided with multiple insertion holes, which are equally spaced and arranged in a ring. Multiple bolts 130 are located inside the multiple insertion holes. The insertion holes can be used to retract the bolts 130, thus preventing the rubber sleeve 120 from rubbing against the inner wall of the housing 140 when it rotates with the rotating shaft 110.

[0035] Furthermore, a plug 300 is inserted into the socket. The plug 300 is located outside the bolt 130. The plug 300 can protect the bolt 130 on the one hand, and prevent lubricating oil from entering the socket on the other hand, thus preventing the bolt 130 from loosening. Example 3

[0036] Combination Figure 1 As shown, in the above embodiment, a plug rod 400 is movably inserted into one side of the housing 140. The inner end of the plug rod 400 extends into the housing 140. Pulling out the plug rod 400 makes it convenient for the operator to add lubricating oil into the annular oil cavity 220.

[0037] The working principle and usage process of this utility model are as follows: When this device is put into actual use, the rubber sleeve 120 is firmly connected to the rotating shaft 110 with the help of the bolt 130. Then, when the rotating shaft 110 rotates with the rubber sleeve 120, the scraper 230 rotates accordingly. Then, the lubricating oil in the annular oil chamber 220 flows up along the scraper 230. During this process, most of the lubricating oil falls back into the annular oil chamber 220 through multiple through holes. Then, a small portion of the lubricating oil will come to the top of the scraper 230 and then enter the space between the rotating shaft 110 and the rubber sleeve 120 through the shallow oil inlet groove 240, thereby achieving the purpose of lubrication. It also reduces the consumption of lubricating oil, reduces the number of times the operator needs to replenish the oil, and improves the comfort of using this device.

[0038] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A ring-shaped self-lubricating seal, characterized in that, include: A sealing mechanism (100) includes a rotating shaft (110), a rubber sleeve (120) sleeved on the outside of the rotating shaft (110), a plurality of bolts (130) connecting the rubber sleeve (120) and the rotating shaft (110), and a housing (140) movably sleeved on the outside of the rubber sleeve (120). The rotating shaft (110) is vertical and movably passes through the top and bottom of the housing (140). The lubrication mechanism (200) includes a partition ring (210) connected to the bottom of the inner cavity of the housing (140), an annular oil cavity (220) formed between the housing (140) and the partition ring (210), a scraper (230) slidably installed inside the annular oil cavity (220) and connected to the rubber sleeve (120), an oil inlet shallow groove (240) opened on the top of the rubber sleeve (120), and a plurality of through holes opened on the scraper (230). The partition ring (210) fits against the bottom of the rubber sleeve (120) and is movably sleeved on the outside of the rotating shaft (110).

2. The annular self-lubricating seal according to claim 1, characterized in that, The rubber sleeve (120) has multiple insertion holes, which are equally spaced and arranged in a ring. Multiple bolts (130) are located inside the multiple insertion holes respectively.

3. The annular self-lubricating seal according to claim 2, characterized in that, A plug (300) is inserted into the socket, and the plug (300) is located outside the bolt (130).

4. The annular self-lubricating seal according to claim 1, characterized in that, The scraper (230) is inclined, and the multiple through holes on the scraper (230) are arranged at equal intervals and obliquely.

5. The annular self-lubricating seal according to claim 1, characterized in that, A plug rod (400) is movably inserted into one side of the housing (140), and the inner end of the plug rod (400) extends into the interior of the housing (140).

6. The annular self-lubricating seal according to claim 1, characterized in that, A spring (500) is sleeved on the outside of the rotating shaft (110). The spring (500) is located inside the partition ring (210). The top end of the spring (500) is in contact with the bottom of the rubber sleeve (120), and the bottom end of the spring (500) is fixed to the bottom of the inner cavity of the rotating shaft (110).

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