CN214036808U - Sealing device of reducer output shaft for construction machinery - Google Patents
Sealing device of reducer output shaft for construction machinery Download PDFInfo
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- CN214036808U CN214036808U CN202022569390.8U CN202022569390U CN214036808U CN 214036808 U CN214036808 U CN 214036808U CN 202022569390 U CN202022569390 U CN 202022569390U CN 214036808 U CN214036808 U CN 214036808U
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- output shaft
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- speed reducer
- elastic component
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Abstract
The utility model discloses a sealing device of speed reducer output shaft for construction machinery, including sealing device casing and cavity, the internally mounted of sealing device casing has elastic component, and elastic component includes T shape cover, spring and T shape pole, the outside of T shape cover is provided with the spring, and the outside of spring is provided with T shape pole, elastic component's externally fixed has the concave piece of U-shaped, and the internally mounted of the concave piece of U-shaped has the ball, the outside of ball is provided with the output axis body, the outside top of sealing device casing is connected with the lid through the bolt, and the below of lid installs the sealing washer, the cavity is located the below of sealing washer. This sealing device of speed reducer output shaft compares with current ordinary sealing device, cools off sealing device, can not let sealing device be in high temperature, influences sealing device's performance, and the cooling effect is obvious, avoids long-time high temperature to damage sealing device, has guaranteed the safe operation of sealing device and speed reducer.
Description
Technical Field
The utility model relates to a speed reducer technical field specifically is a sealing device of speed reducer output shaft for construction machinery.
Background
The speed reducer plays a role in matching rotating speed and transmitting torque between a prime motor and a working machine or an actuating mechanism, is widely applied to modern machinery, can be divided into a general speed reducer and a special speed reducer according to purposes, and has different design, manufacturing and use characteristics.
The existing sealing device is single in function and simple in structure, a lot of defects exist in use, for example, the sealing device can be always in a high-temperature state when being used for a long time, the use performance of the sealing device is easily influenced, the sealing device can be seriously damaged due to failure, the use requirements of people can not be well met, and technical innovation is performed on the basis of the existing sealing device according to the condition.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a sealing device of speed reducer output shaft for construction machinery to propose general sealing device function singleness in solving above-mentioned background art, simple structure has a lot of defects in using, for example sealing device is under long-time use, can let sealing device be in high temperature state always, influences sealing device performance easily, serious can lead to sealing device fault damage, the not fine user demand problem of satisfying people.
In order to achieve the above object, the utility model provides a following technical scheme: a sealing device of an output shaft of a speed reducer for construction machinery comprises a sealing device shell and a cavity, wherein an elastic assembly is arranged inside the sealing device shell, the elastic assembly comprises a T-shaped sleeve, a spring and a T-shaped rod, the spring is arranged outside the T-shaped sleeve, the T-shaped rod is arranged outside the spring, a U-shaped concave block is fixed outside the elastic assembly, a ball is arranged inside the U-shaped concave block, an output shaft body is arranged outside the ball, the upper part outside the sealing device shell is connected with a cover body through a bolt, a sealing ring is arranged below the cover body, the cavity is located below the sealing ring, a barrel is fixed at the front end outside the sealing device shell, a nut is arranged below the outer part of the barrel, a threaded rod is arranged inside the nut, a bearing is arranged outside the threaded rod, and a pressing plate is arranged inside the barrel, and a tube body is fixed above the outer part of the tube body.
Preferably, a welding integrated structure is formed between the elastic assembly and the sealing device shell, and the elastic assembly is distributed at equal intervals along the horizontal line of the sealing device shell.
Preferably, the T-shaped sleeve and the T-shaped rod form an elastic structure through a spring, and the inner surface of the T-shaped sleeve is tightly attached to the outer surface of the T-shaped rod.
Preferably, the U-shaped concave block is movably connected with the ball bearings, and the ball bearings are distributed at equal intervals along the horizontal line of the U-shaped concave block.
Preferably, an integrated structure is formed between the cavity and the sealing device shell, and the cavities are symmetrically distributed along the central axis of the sealing device shell.
Preferably, the outer surface of the pressing plate is tightly attached to the inner surface of the barrel, and the central axis of the pressing plate coincides with the central axis of the threaded rod.
Compared with the prior art, the beneficial effects of the utility model are as follows:
1. the utility model has the advantages that through the arrangement of the elastic component, the T-shaped sleeve, the spring, the T-shaped rod, the U-shaped concave block and the ball, the output shaft body has better stability in the rotating process, is simultaneously suitable for the output shaft bodies with various sizes, can be attached to the output shaft body according to the size change of the output shaft body, even if the attachment part is worn, the output shaft body can be attached through elastic expansion, and the rotating stability of the output shaft body can be ensured through long-time use;
2. the utility model discloses a bolt, lid, sealing washer and cavity setting, add the coolant liquid to the cavity inside, cool off sealing device, can not let sealing device be in the high temperature, influence sealing device's performance, the cooling effect is obvious, avoids long-time high temperature to damage sealing device, has guaranteed the safe operation of sealing device and speed reducer;
3. the utility model discloses a setting of barrel, nut, threaded rod, bearing, clamp plate and body can lubricate the inside spare part of sealing device casing, effectively alleviates the wearing and tearing of the inside spare part of sealing device casing for sealing device is having fine performance, can not lead to sealing device to damage the trouble because of lubricated not enough, has fine reliability.
Drawings
FIG. 1 is a schematic view of a front view half-section structure of the present invention;
FIG. 2 is a schematic view of the partial sectional structure of the front view of the present invention;
fig. 3 is an enlarged schematic view of a portion a in fig. 1 according to the present invention.
In the figure: 1. a sealing device housing; 2. an elastic component; 201. a T-shaped sleeve; 202. a spring; 203. a T-shaped rod; 3. a U-shaped concave block; 4. a ball bearing; 5. an output shaft body; 6. a bolt; 7. a cover body; 8. a seal ring; 9. a cavity; 10. a barrel; 11. a nut; 12. a threaded rod; 13. a bearing; 14. pressing a plate; 15. a tube body.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a sealing device of an output shaft of a speed reducer for construction machinery comprises a sealing device shell 1 and a cavity 9, wherein an elastic component 2 is arranged inside the sealing device shell 1, the elastic component 2 comprises a T-shaped sleeve 201, a spring 202 and a T-shaped rod 203, a welding integrated structure is formed between the elastic component 2 and the sealing device shell 1, the elastic component 2 is equidistantly distributed along the horizontal line of the sealing device shell 1, the spring 202 is arranged outside the T-shaped sleeve 201, the T-shaped rod 203 is arranged outside the spring 202, the T-shaped sleeve 201 and the T-shaped rod 203 form an elastic structure through the spring 202, the inner surface of the T-shaped sleeve 201 is tightly attached to the outer surface of the T-shaped rod 203, a U-shaped concave block 3 is fixed outside the elastic component 2, a ball 4 is arranged inside the U-shaped concave block 3, the U-shaped concave block 3 is movably connected with the ball 4, and the ball 4 is equidistantly distributed along the horizontal line of the U-shaped concave block 3, the output shaft body 5 is arranged outside the ball 4, the elastic assembly 2, the T-shaped sleeve 201, the spring 202, the T-shaped rod 203, the U-shaped concave block 3 and the ball 4 are arranged, so that the output shaft body 5 has good stability in the rotating process, and is suitable for the output shaft bodies 5 with various sizes, and can be attached to the output shaft bodies 5 according to the size change of the output shaft bodies 5, even if the attachment parts are worn, the output shaft bodies 5 can be attached through elastic extension, and the rotating stability of the output shaft bodies 5 can be ensured after long-time use;
the upper part of the outer part of the sealing device shell 1 is connected with the cover body 7 through the bolt 6, the sealing ring 8 is arranged below the cover body 7, the cavity 9 is positioned below the sealing ring 8, an integrated structure is formed between the cavity 9 and the sealing device shell 1, the cavities 9 are symmetrically distributed along the central axis of the sealing device shell 1, and through the arrangement of the bolt 6, the cover body 7, the sealing ring 8 and the cavities 9, cooling liquid is added into the cavity 9 to cool the sealing device, so that the sealing device is not at high temperature, the performance of the sealing device is not affected, the cooling effect is obvious, the sealing device is prevented from being damaged by long-time high temperature, and the safe operation of the sealing device and the speed reducer is ensured;
a cylinder 10 is fixed at the front end of the outer part of the sealing device shell 1, a nut 11 is arranged below the outer part of the cylinder 10, a threaded rod 12 is arranged inside the nut 11, and a bearing 13 is arranged outside the threaded rod 12, a pressing plate 14 is arranged inside the cylinder body 10, and a tube body 15 is fixed on the upper part of the outer part of the cylinder body 10, the outer surface of the pressure plate 14 is tightly attached to the inner surface of the cylinder body 10, the central axis of the pressure plate 14 is coincided with the central axis of the threaded rod 12, through the arrangement of the cylinder 10, the nut 11, the threaded rod 12, the bearing 13, the pressure plate 14 and the pipe body 15, the components in the sealing device shell 1 can be lubricated, the abrasion of the components in the sealing device shell 1 can be effectively relieved, the sealing device has good service performance, the sealing device cannot be damaged and failed due to insufficient lubrication, and the sealing device has good reliability.
The working principle is as follows: when the sealing device of the output shaft body 5 of the speed reducer is used, firstly, one side of a sealing device shell 1 is arranged outside a flange of the output shaft body 5 of the speed reducer, the output shaft body 5 is occluded by a ball 4 arranged inside a U-shaped concave block 3, the U-shaped concave block 3 is arranged outside an elastic component 2, the elastic component 2 is arranged on the inner wall of the sealing device shell 1, the rotation stability of the output shaft body 5 can be kept, meanwhile, a T-shaped sleeve 201 and a T-shaped rod 203 form an elastic structure through a spring 202, so that the ball 4 arranged inside the U-shaped concave block 3 can be occluded with the output shaft bodies 5 with different sizes, a bolt 6 is unscrewed, a cover body 7 is opened, cooling liquid is added into a cavity 9 to cool the sealing device, the performance of the sealing device cannot be reduced due to high temperature, when the lubrication of the sealing device is insufficient, a threaded rod 12 is rotated, the threaded rod 12 and a nut 11 arranged outside a barrel body 10 rotate to apply force to a pressure plate 14, the pressure plate 14 is connected with the threaded rod 12 through the bearing 13, and lubricating oil in the cylinder 10 is extruded by the pressure plate 14 and then is input into the sealing device shell 1 through the pipe body 15 to lubricate parts in the sealing device shell 1, which is the working principle of the sealing device of the output shaft of the speed reducer.
Claims (6)
1. The utility model provides a sealing device of speed reducer output shaft for construction machinery, includes sealing device casing (1) and cavity (9), its characterized in that: an elastic component (2) is arranged inside the sealing device shell (1), the elastic component (2) comprises a T-shaped sleeve (201), a spring (202) and a T-shaped rod (203), the spring (202) is arranged outside the T-shaped sleeve (201), the T-shaped rod (203) is arranged outside the spring (202), a U-shaped concave block (3) is fixed outside the elastic component (2), a ball (4) is arranged inside the U-shaped concave block (3), an output shaft body (5) is arranged outside the ball (4), the upper part of the outer part of the sealing device shell (1) is connected with a cover body (7) through a bolt (6), a sealing ring (8) is arranged below the cover body (7), a cavity (9) is located below the sealing ring (8), a cylinder body (10) is fixed at the front end of the outer part of the sealing device shell (1), and a nut (11) is arranged below the outer part of the cylinder body (10), the novel screw rod clamping device is characterized in that a threaded rod (12) is mounted inside the nut (11), a bearing (13) is arranged outside the threaded rod (12), a pressing plate (14) is mounted inside the barrel (10), and a pipe body (15) is fixed above the outside of the barrel (10).
2. The sealing device for an output shaft of a speed reducer for construction machinery according to claim 1, characterized in that: constitute welding integral structure between elastic component (2) and sealing device casing (1), and elastic component (2) distribute along the water flat line equidistance of sealing device casing (1).
3. The sealing device for an output shaft of a speed reducer for construction machinery according to claim 1, characterized in that: the T-shaped sleeve (201) and the T-shaped rod (203) form an elastic structure through the spring (202), and the inner surface of the T-shaped sleeve (201) is tightly attached to the outer surface of the T-shaped rod (203).
4. The sealing device for an output shaft of a speed reducer for construction machinery according to claim 1, characterized in that: the U-shaped concave block (3) is movably connected with the balls (4), and the balls (4) are distributed along the horizontal line of the U-shaped concave block (3) at equal intervals.
5. The sealing device for an output shaft of a speed reducer for construction machinery according to claim 1, characterized in that: an integrated structure is formed between the cavity (9) and the sealing device shell (1), and the cavity (9) is symmetrically distributed along the central axis of the sealing device shell (1).
6. The sealing device for an output shaft of a speed reducer for construction machinery according to claim 1, characterized in that: the outer surface of the pressing plate (14) is tightly attached to the inner surface of the barrel (10), and the central axis of the pressing plate (14) coincides with the central axis of the threaded rod (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022569390.8U CN214036808U (en) | 2020-11-09 | 2020-11-09 | Sealing device of reducer output shaft for construction machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022569390.8U CN214036808U (en) | 2020-11-09 | 2020-11-09 | Sealing device of reducer output shaft for construction machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214036808U true CN214036808U (en) | 2021-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022569390.8U Active CN214036808U (en) | 2020-11-09 | 2020-11-09 | Sealing device of reducer output shaft for construction machinery |
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| CN (1) | CN214036808U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790336A (en) * | 2021-10-09 | 2021-12-14 | 航天精工股份有限公司 | High-precision large-bearing high-temperature-resistant sealed heat-insulation type transmission device |
-
2020
- 2020-11-09 CN CN202022569390.8U patent/CN214036808U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790336A (en) * | 2021-10-09 | 2021-12-14 | 航天精工股份有限公司 | High-precision large-bearing high-temperature-resistant sealed heat-insulation type transmission device |
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