Bearing sealing structure convenient to maintain

Abstract

The utility model relates to the technical field of bearing sealing, in particular to a bearing sealing structure convenient to maintain, and solves the problem that in the prior art, a sealing structure is tedious in installation and inconvenient to disassemble and maintain. A bearing sealing structure convenient to maintain comprises a main shaft and a shaft body, a sealing disc is fixedly connected to the surface of the main shaft, an extrusion disc is arranged on the surface of the main shaft in a penetrating mode, a fixing mechanism is arranged between the surface of the extrusion disc and the shaft body, a reinforcing disc is arranged on the surface of the main shaft in a penetrating mode, and an anti-moving ring is arranged on the surface of the main shaft in a penetrating mode. A stabilizing mechanism is arranged on the surface of the anti-moving ring and the surface of the adjacent extrusion disc, the surface of the main shaft is sleeved with a protective pad, and the reinforcing disc is attached to the adjacent extrusion disc. According to the utility model, the sealing structure is convenient to maintain, the convenient maintenance and reliable operation of the bearing sealing structure are realized, and the stability and the efficiency are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to bearing sealing technical field especially, relate to a bearing sealing structure convenient to maintain. BACKGROUND

[0002] Bearing sealing plays a vital role in preventing lubricant leakage and external contaminants from entering the bearing, and felt ring sealing is a simple contact type sealing. It is made of felt ring of wool felt and other materials installed in the trapezoidal groove of bearing seat, and the felt ring is in direct contact with the shaft neck. Its structure is simple and compact, and the cost is relatively low. Rubber oil seal is generally composed of rubber lip, metal framework and spring ring. The lip is in close contact with the shaft neck, and the lip is tightly attached to the shaft neck by the elastic force of the spring ring, thereby realizing sealing. It has various forms such as single lip and double lip. Double-lip oil seal can not only prevent lubricating oil leakage, but also better prevent the entry of external dust and moisture. Gap sealing is to realize sealing by using the small gap between the shaft and the bearing seat. In the design, a certain radial gap is left between the shaft and the bearing seat, which is usually about 0.1-0.3mm. In order to improve the sealing effect, sometimes lubricating grease is filled in the gap. The labyrinth seal is composed of a series of annular sealing teeth and corresponding sealing grooves arranged in sequence. These sealing teeth and grooves form a tortuous channel, so that the leaked medium changes direction many times in the channel, thereby increasing the leakage resistance. The sealing teeth can be on the shaft or on the bearing seat. The labyrinth seal has a solid structure and a long service life under normal conditions. When maintenance is needed, the main task is to clean the debris and deposits in the sealing channel. Since there is no easy-to-wear sealing part in contact with the shaft, frequent replacement of sealing parts is not required. For example, in the bearing sealing of large fans, the labyrinth seal can effectively prevent dust and moisture from entering the bearing, and after a long period of operation, maintenance personnel only need to simply clean the labyrinth channel to restore good sealing performance.

[0003] In the prior art, the bearing needs an effective sealing structure to prevent dust, impurities, moisture and other substances from entering the bearing, and to prevent lubricating grease from leaking, so a sealing structure is used, and maintenance or replacement of the sealing structure is needed to ensure that the sealing structure can be used continuously.

[0004] However, many existing bearing sealing structures are very complex to operate when maintenance or replacement of the sealing parts is needed after long-term use. Some sealing structures have complicated installation methods and require the disassembly of a large number of associated parts to access the sealing parts; some sealing structures do not consider the convenience of later maintenance in design, resulting in increased maintenance cost, prolonged equipment downtime, and serious impact on the normal operation of the equipment and production efficiency. UTILITY MODEL CONTENTS

[0005] The purpose of this invention is to provide a bearing sealing structure that is easy to maintain, solving the problem that the existing sealing structures are cumbersome to install and inconvenient to disassemble and maintain.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A maintenance-friendly bearing sealing structure includes a main shaft and a shaft body. A sealing disc is fixedly connected to the surface of the main shaft. An extrusion disc passes through the surface of the main shaft. A fixing mechanism is provided between the surface of the extrusion disc and the shaft body. A reinforcing disc passes through the surface of the main shaft. An anti-rotation ring passes through the surface of the main shaft. A stabilizing mechanism is provided between the anti-rotation ring and the surface of the adjacent extrusion disc. A protective pad is fitted onto the surface of the main shaft. The reinforcing disc is in contact with the adjacent extrusion disc.

[0008] Preferably, the fixing mechanism includes a number of bolts passing through the surface of the extrusion disc, with one end of the bolts threadedly connected to the shaft.

[0009] Preferably, the surface of the extrusion disc is provided with several anti-detachment grooves, and a U-shaped slider is slidably connected inside the anti-detachment groove. The inside of the anti-detachment groove is elastically connected to the adjacent slider through an extrusion spring, and the bolt is fitted inside the adjacent slider.

[0010] Preferably, the anti-detachment groove has a T-shaped cross-section, and reinforcing blocks are fixedly connected to both sides of the slider, with the reinforcing blocks located inside the anti-detachment groove.

[0011] Preferably, the stabilizing mechanism includes several insertion slots formed on the surface of the extrusion plate, a T-shaped insertion rod is slidably connected inside the insertion slot, several U-shaped stabilizing blocks are fixedly connected to the surface of the anti-moving ring, one end of the insertion rod passes through the inside of the stabilizing block, and a synchronization block is fixedly connected to one end of the insertion rod.

[0012] Preferably, a fixing ring is provided between several synchronization blocks.

[0013] This utility model has the following beneficial effects:

[0014] When disassembling and maintaining the sealing structure, the anti-rotating ring is a structure that squeezes the sealing component, which can improve the sealing effect. When disassembly is required, simply remove the fixing ring and move the insertion rod to make the anti-rotating ring disengage from the extrusion plate. Then, turn the bolt to remove the extrusion plate and disassemble the sealing component for maintenance. This facilitates the maintenance of the sealing structure, realizes convenient maintenance and reliable operation of the bearing sealing structure, and improves stability and efficiency. Attached Figure Description

[0015] In order to more clearly illustrate the technical scheme of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0016] Figure 1 It is a structural schematic diagram of the present application;

[0017] Figure 2 It is Figure 1 a side structural schematic diagram;

[0018] Figure 3 It is Figure 1 a structural schematic diagram after removing the anti-moving ring;

[0019] Figure 4 It is Figure 3 a structural schematic diagram after removing the extrusion disc;

[0020] Figure 5 It is Figure 1 a side structural schematic diagram of the fixing mechanism and the stabilizing mechanism.

[0021] In the figure: 1, main shaft; 2, shaft body; 3, sealing disc; 4, extrusion disc; 5, fixing mechanism; 6, reinforcing disc; 7, anti-moving ring; 8, stabilizing mechanism; 9, protective pad; 501, bolt; 502, anti-dropping groove; 503, sliding block; 504, extrusion spring; 505, reinforcing block; 801, insertion slot; 802, insertion rod; 803, stabilizing block; 804, synchronous block; 805, fixing ring. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear, the following will further describe the present application in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.

[0023] Referring to Figures 1-5The utility model provides a bearing sealing structure convenient to maintain, including the main shaft 1 and the shaft body 2, the surface of main shaft 1 is fixedly connected with sealing disc 3, the surface of main shaft 1 is equipped with extrusion disc 4, and the surface between extrusion disc 4 and shaft body 2 is equipped with fixed mechanism 5, and the surface of main shaft 1 is equipped with reinforcing disc 6, when needing to seal, sealing disc 3 is fixedly connected with main shaft 1 and is in line with the shaft body 2, then through extrusion disc 4 and reinforcing disc 6, so that the sealing is better, sealing disc 3 forms the labyrinth seal with extrusion disc 4 and reinforcing disc 6, guarantees the sealing effect, then through fixed mechanism 5, extrusion disc 4 is fixed with shaft body 2, guarantees the stability of sealing, does not easily cause leakage, the surface of main shaft 1 is equipped with anti -moving ring 7, and anti -moving ring 7 can extrude reinforcing disc 6, so that reinforcing disc 6 does not easily separate from extrusion disc 4, thereby guaranteeing the sealing effect, the surface of anti -moving ring 7 and adjacent extrusion disc 4 is equipped with stabilizing mechanism 8, when needing to use anti -moving ring 7, anti -moving ring 7 is fixed with extrusion disc 4 through stabilizing mechanism 8, so that extrusion disc 4 is fixed with shaft body 2, so that the sealing effect does not appear problem, and when needing to maintain, also can be opened through stabilizing mechanism 8 to take off anti -moving ring 7, the surface of main shaft 1 is equipped with protective pad 9, and protective pad 9 is the structure of supplementary restriction to anti -moving ring 7, can increase the difficulty of anti -moving ring 7 movement through friction, thereby limiting anti -moving ring 7, reinforcing disc 6 is in line with adjacent extrusion disc 4, and the inlaying of reinforcing disc 6 and extrusion disc 4 increases the sealing effect.

[0024] Further, the fixed mechanism 5 includes a plurality of bolts 501 threaded into the surface of the extrusion disc 4, one end of the bolt 501 is screwed between the shaft body 2, when the extrusion disc 4 and the shaft body 2 need to be fixed, the bolt 501 is inserted into the surface of the extrusion disc 4, then rotated into the shaft body 2, so that the extrusion disc 4 and the shaft body 2 can be fixedly connected, when disassembled, only need to rotate the bolt 501 to make the bolt 501 separate from the shaft body 2, so that the extrusion disc 4 and the shaft body 2 are separated.

[0025] Further, the surface of the extrusion disc 4 is provided with a plurality of anti-extraction grooves 502, the inside of the anti-extraction groove 502 is slidably connected with a U-shaped sliding block 503, the inside of the anti-extraction groove 502 is elastically connected with the adjacent sliding block 503 through the extrusion spring 504, the bolt 501 is inlaid in the inside of the adjacent sliding block 503, when the bolt 501 is rotated to fix the extrusion disc 4 and the shaft body 2, the sliding block 503 is extruded out of the hole, then the bolt 501 is rotated, so that the extrusion disc 4 and the shaft body 2 can be fixed, then the sliding block 503 is loosened, the sliding block 503 moves by the elastic force of the extrusion spring 504, so that the sliding block 503 is inlaid with one end of the bolt 501, the bolt 501 is blocked by the sliding block 503, preventing the extrusion disc 4 and the shaft body 2 from easily separating during use, ensuring the stability of the fixation and the stability of the sealing.

[0026] Further, the section of the anti-off groove 502 is T-shaped, the two sides of the sliding block 503 are fixedly connected with the reinforcing blocks 505, the reinforcing blocks 505 are located inside the anti-off groove 502, and when it is required to ensure the stability of the bolt 501 by limiting the bolt 501 through the sliding block 503, the strength of the sliding block 503 can be increased through the reinforcing blocks 505, so that the sliding block 503 can normally limit the bolt 501.

[0027] Further, the stability mechanism 8 comprises a plurality of insertion grooves 801 formed in the surface of the extrusion disc 4, the T-shaped insertion rods 802 are slidably connected inside the insertion grooves 801, the surfaces of the anti-moving rings 7 are fixedly connected with a plurality of U-shaped stability blocks 803, one end of the insertion rod 802 penetrates the inside of the stability block 803, one end of the insertion rod 802 is fixedly connected with the synchronous blocks 804, when the anti-moving ring 7 is used, the anti-moving ring 7 is inserted into the main shaft 1, then the insertion rod 802 is moved downward, so that the insertion rod 802 enters the inside of the stability block 803, at this time, the end of the insertion rod 802 located inside the insertion groove 801 and the synchronous block 804 can fix the anti-moving ring 7 and the extrusion disc 4, so as to ensure the stability of the anti-moving ring 7, and the stability of the extrusion disc 4 is obtained by being fixed with the shaft body 2, when maintenance is required, the insertion rod 802 can be taken off from the stability block 803, so that the anti-moving ring 7 is no longer limited, and can be conveniently taken off from the main shaft 1, so as to facilitate the maintenance.

[0028] Further, the fixing rings 805 are sleeved between the plurality of synchronous blocks 804, when it is required to make the insertion rod 802 be clamped on the stability block 803 through the plurality of synchronous blocks 804, the positions of the plurality of synchronous blocks 804 can be limited through the fixing rings 805, so as to ensure that the synchronous blocks 804 normally play a role.

[0029] In summary:

[0030] When the bearing seal is maintained, the protective pad 9 is first pulled outwards, then the fixing ring 805 is removed, the insertion rod 802 is slid away from the stabilizing block 803 through the insertion slot 801, so that the anti-moving ring 7 is no longer stabilized by the extrusion disc 4, the anti-moving ring 7 can be removed from the main shaft 1, then the reinforcing disc 6 is pulled out, the extrusion disc 4 is leaked, then the sliding block 503 on the extrusion disc 4 is pushed, the bolt 501 is leaked, then the bolt 501 is removed by rotating the bolt 501, the shaft body 2 is separated from the extrusion disc 4, the sealing disc 3 is leaked, then the maintenance is carried out, after the maintenance, the extrusion disc 4 and the reinforcing disc 6 are sent into the main shaft 1, then the extrusion disc 4 and the shaft body 2 are fixedly connected by rotating the bolt 501 again, the sliding block 503 is limited during the rotation of the bolt 501, the sliding block 503 is released after the rotation is completed, the sliding block 503 is slid in the anti-coming-off slot 502 by the elastic force of the extrusion spring 504 to shield the bolt 501, then the sliding block 503 can better limit the bolt 501 by the reinforcing block 505, then the anti-moving ring 7 is sent into the main shaft 1, then the insertion rod 802 is inserted into the stabilizing block 803, the anti-moving ring 7 and the extrusion disc 4 are fixed by the synchronous block 804 and the insertion rod 802 located at one end of the insertion slot 801, then the synchronous block 804 can better fix the anti-moving ring 7 and the extrusion disc 4 by the fixing ring 805, then the protective pad 9 is sleeved on the surface of the main shaft 1, through the above structure, the bearing sealing structure can be conveniently disassembled, the sealing structure can be conveniently maintained, and after the maintenance, the sealing structure can be conveniently reassembled to continue sealing, the sealing effect can be ensured, the complexity of the maintenance sealing structure is reduced, and the maintenance efficiency is improved.

[0031] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims

1. A bearing seal structure which is easy to maintain, comprising a main shaft (1) and a shaft body (2), characterized in that, The surface of the main shaft (1) is fixedly connected with a sealing disc (3), the surface of the main shaft (1) is provided with an extrusion disc (4), a fixing mechanism (5) is arranged between the surface of the extrusion disc (4) and the shaft body (2), the surface of the main shaft (1) is provided with a reinforcing disc (6), the surface of the main shaft (1) is provided with an anti-moving ring (7), the anti-moving ring (7) and the surface of the adjacent extrusion disc (4) are provided with a stabilizing mechanism (8), the surface of the main shaft (1) is provided with a protective pad (9), and the reinforcing disc (6) is attached to the adjacent extrusion disc (4).

2. A bearing seal structure for facilitating maintenance according to claim 1, wherein The fixing mechanism (5) comprises a plurality of bolts (501) penetrating the surface of the extrusion disc (4), and one end of the bolt (501) is threadedly connected with the shaft body (2).

3. A maintenance-friendly bearing seal arrangement according to claim 2, characterized in that The surface of the extrusion disc (4) is provided with a plurality of anti-falling grooves (502), the inside of the anti-falling groove (502) is slidably connected with a U-shaped sliding block (503), the inside of the anti-falling groove (502) is elastically connected with the adjacent sliding block (503) through an extrusion spring (504), and the bolt (501) is attached to the inside of the adjacent sliding block (503).

4. A maintenance-friendly bearing seal arrangement according to claim 3, characterized in that The cross section of the anti-falling groove (502) is T-shaped, the two sides of the sliding block (503) are fixedly connected with a reinforcing block (505), and the reinforcing block (505) is located in the inside of the anti-falling groove (502).

5. The easily maintained bearing seal arrangement of claim 1, wherein, The stabilizing mechanism (8) comprises a plurality of insertion grooves (801) formed in the surface of the extrusion disc (4), the inside of the insertion groove (801) is slidably connected with a T-shaped insertion rod (802), the surface of the anti-moving ring (7) is fixedly connected with a plurality of U-shaped stabilizing blocks (803), one end of the insertion rod (802) penetrates the inside of the stabilizing block (803), and one end of the insertion rod (802) is fixedly connected with a synchronous block (804).

6. A maintenance-friendly bearing seal arrangement according to claim 5, characterized in that A plurality of the synchronous blocks (804) are sleeved with a fixing ring (805).

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