Novel oil seal dustproof structure of gear box

Abstract

The utility model discloses a novel oil seal dustproof structure of a gear box, which relates to the field of gear boxes and comprises a box body and an output shaft arranged in the box body, one end of the output shaft extends to the outside of the box body, a transparent cover is fixedly arranged on the outer side wall of the box body and corresponds to the position of the output shaft, and a dustproof cover plate is fixedly arranged on one side, far away from the box body, of the transparent cover. An upper oil seal and a lower oil seal which are in contact with the shaft wall of the output shaft are arranged in the transparent cover; one side of the transparent cover is provided with a first flow channel, the other side of the transparent cover is provided with a second flow channel, one end of the first flow channel is fixedly provided with a first oil cup, and one end of the second flow channel is fixedly provided with a second oil cup. According to the utility model, two sealing structures are adopted to ensure the isolation performance of the oil seal and dust, the dustproof structure of the oil seal is simple and reliable, the cost is low, the service life of the oil seal in a dust use environment is prolonged, and the maintenance cost of equipment is reduced.

Description

Technical Field

[0001] The utility model relates to the field of gear boxes, in particular to a novel oil seal dustproof structure of a gear box. Background Art

[0002] With the rapid development of modern industry, gearboxes, as key transmission components, play an increasingly important role in various mechanical equipment. In order to ensure the stable operation of the gearbox and extend its service life, the design and optimization of the oil seal dustproof structure is particularly important.

[0003] Traditional gearbox oil seals may face some defects and deficiencies when used in dusty environments, specifically:

[0004] 1. Increased wear: The fine particles in the dust will constantly contact the surface of the oil seal, causing the oil seal to wear more. Over time, the sealing performance of the oil seal will decline, and even oil leakage problems will occur.

[0005] 2. Reduced sealing performance: Dust may accumulate on the contact surface between the oil seal and the shaft or hole, destroying the sealing performance of the oil seal. This may cause lubricating oil leakage, which in turn affects the normal operation of the equipment.

[0006] 3. Shortened service life: Due to the wear and tear of dust and the reduction of sealing performance, the service life of traditional oil seals in dusty environments will be significantly shortened. Frequent replacement of oil seals not only increases maintenance costs, but may also affect the continuous operation of the equipment.

[0007] 4. Difficulty in maintenance: Dust easily adheres to the surface of the oil seal, making it difficult for maintenance personnel to clean and check the status of the oil seal. This may result in maintenance personnel being unable to discover and solve problems in a timely manner, further exacerbating the wear of the oil seal and reducing the sealing performance. Utility Model Content

[0008] In view of the above problems existing in the existing gear box oil seal dustproof structure, the present utility model is proposed.

[0009] Therefore, the purpose of the utility model is to provide a new oil seal dustproof structure for a gear box, which solves the problems raised by the background technology.

[0010] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0011] A novel oil seal and dustproof structure for a gear box comprises a box body and an output shaft arranged inside the box body, one end of the output shaft extends to the outside of the box body, a transparent cover is fixedly provided on the outer wall of the box body at a position corresponding to the position of the output shaft, a dustproof cover is fixedly provided on the side of the transparent cover away from the box body, the shaft wall of the output shaft passes through the internal arrangement of the transparent cover and the dustproof cover, an upper oil seal and a lower oil seal contacting the shaft wall of the output shaft are arranged inside the transparent cover; a first flow channel is provided on one side of the transparent cover, and a second flow channel is provided on the other side of the transparent cover, one end of the first flow channel corresponds to the positions of the upper oil seal and the lower oil seal, and a first oil cup is fixedly installed on the other end of the first flow channel, one end of the second flow channel corresponds to the contact position of the transparent cover and the dustproof cover, and a second oil cup is fixedly installed on the other end of the second flow channel.

[0012] Preferably, fixing bolts threadedly connected to the side walls of the box body are provided on both sides of the bottom of the transparent cover.

[0013] Preferably, the side wall of the dustproof cover is provided with a locking screw threadedly connected to the transparent cover.

[0014] Furthermore, the first flow channel adopts a linear structure, and the second flow channel adopts an L-shaped structure.

[0015] Preferably, the first oil cup and the first flow channel as well as the second oil cup and the second flow channel are connected by threads.

[0016] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0017] The utility model provides a first oil cup and a second oil cup, and grease can be injected into the interior of the first oil cup, so that the grease fills the cavity between the upper oil seal and the lower oil seal through the first flow channel, and then the grease is injected into the interior of the second oil cup, so that the grease fills the cavity between the transparent cover and the dust cover through the second flow channel. When the output shaft is running, the grease between the upper oil seal and the lower oil seal forms a first seal, and the grease between the transparent cover and the dust cover forms a second seal. The isolation of the oil seal and dust is ensured by these two seals, so as to avoid oil leakage and a large degree of wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 For the utility model Figure 1 A magnified schematic diagram of part A.

[0021] Description of reference numerals:

[0022] 1. Box body; 2. Output shaft; 3. Transparent cover; 4. Dust cover; 5. Upper oil seal; 6. Lower oil seal; 7. First flow channel; 8. First oil cup; 9. Second flow channel; 10. Second oil cup; 11. Fixing bolt; 12. Locking screw. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] The utility model embodiment discloses a novel oil seal dustproof structure of a gear box.

[0025] The utility model provides Figure 1-2 A novel oil seal dustproof structure of a gear box shown in the figure comprises a box body 1 and an output shaft 2 arranged inside the box body 1, one end of the output shaft 2 extends to the outside of the box body 1, a transparent cover 3 is fixedly provided on the outer wall of the box body 1 and at a position corresponding to the position of the output shaft 2, a dust cover plate 4 is fixedly provided on the side of the transparent cover 3 away from the box body 1, the shaft wall of the output shaft 2 passes through the internal arrangement of the transparent cover 3 and the dust cover plate 4, an upper oil seal 5 and a lower oil seal 6 are arranged in contact with the shaft wall of the output shaft 2 inside the transparent cover 3, a first flow channel 7 is provided on one side of the transparent cover 3, and the first flow channel 7 is in a straight line shape structure, and a second flow channel 9 is provided on the other side of the transparent cover 3, the second flow channel 9 adopts an L-shaped structure, one end of the first flow channel 7 corresponds to the positions of the upper oil seal 5 and the lower oil seal 6, and a first oil cup 8 is fixedly installed on the other end of the first flow channel 7, one end of the second flow channel 9 corresponds to the contact position of the transparent cover 3 and the dust cover plate 4, and a second oil cup 10 is fixedly installed on the other end of the second flow channel 9, and the first oil cup 8 and the first flow channel 7 as well as the second oil cup 10 and the second flow channel 9 are both threadedly connected, so that the disassembly and assembly and maintenance of the first oil cup 8 and the second oil cup 10 are more convenient.

[0026] When the output shaft 2 is in operation, grease is injected into the first oil cup 8 so that the grease fills the cavity between the upper oil seal 5 and the lower oil seal 6 through the first flow channel 7, and then grease is injected into the second oil cup 10 so that the grease fills the cavity between the transparent cover 3 and the dust cover plate 4 through the second flow channel 9, so that the grease between the upper oil seal 5 and the lower oil seal 6 forms a first seal, and the grease between the transparent cover 3 and the dust cover plate 4 forms a second seal, and the oil seal and dust are isolated through these two seals.

[0027] In order to be able to fix the transparent cover 3 and the box body 1, Figure 1 As shown, fixing bolts 11 threadedly connected to the side walls of the box body 1 are provided on both sides of the bottom of the transparent cover 3 .

[0028] Finally, in order to be able to fix the dust cover plate 4 and the transparent cover 3, as shown in FIG. Figure 1 As shown, the side wall of the dustproof cover plate 4 is provided with a locking screw 12 which is threadedly connected to the transparent cover 3 .

[0029] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel oil seal dustproof structure for a gear box, comprising a box body (1) and an output shaft (2) arranged inside the box body (1), characterized in that: One end of the output shaft (2) extends to the outside of the box body (1); a transparent cover (3) is fixedly provided on the outer wall of the box body (1) at a position corresponding to the position of the output shaft (2); a dust cover (4) is fixedly provided on a side of the transparent cover (3) away from the box body (1); the shaft wall of the output shaft (2) passes through the interior of the transparent cover (3) and the dust cover (4); an upper oil seal (5) and a lower oil seal (6) are provided inside the transparent cover (3) and are arranged in contact with the shaft wall of the output shaft (2); A first flow channel (7) is provided on one side of the transparent cover (3), and a second flow channel (9) is provided on the other side of the transparent cover (3); one end of the first flow channel (7) corresponds to the position of an upper oil seal (5) and a lower oil seal (6), and a first oil cup (8) is fixedly mounted on the other end of the first flow channel (7); one end of the second flow channel (9) corresponds to the contact position between the transparent cover (3) and the dustproof cover plate (4), and a second oil cup (10) is fixedly mounted on the other end of the second flow channel (9).

2. The novel oil seal dustproof structure for a gear box according to claim 1 is characterized in that: Both sides of the bottom of the transparent cover (3) are provided with fixing bolts (11) threadedly connected to the side walls of the box body (1).

3. The novel oil seal dustproof structure for a gear box according to claim 1 is characterized in that: The side wall of the dustproof cover plate (4) is provided with a locking screw (12) threadedly connected to the transparent cover (3).

4. The novel oil seal dustproof structure for a gear box according to claim 1 is characterized in that: The first flow channel (7) adopts a linear structure, and the second flow channel (9) adopts an L-shaped structure.

5. The novel oil seal dustproof structure for a gear box according to claim 1 is characterized in that: The first oil cup (8) and the first flow channel (7) as well as the second oil cup (10) and the second flow channel (9) are both connected by threads.

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