CN216131354U - Open gear oil leakage-proof sealing device of edge transmission ball mill - Google Patents
Open gear oil leakage-proof sealing device of edge transmission ball mill Download PDFInfo
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- CN216131354U CN216131354U CN202121349368.0U CN202121349368U CN216131354U CN 216131354 U CN216131354 U CN 216131354U CN 202121349368 U CN202121349368 U CN 202121349368U CN 216131354 U CN216131354 U CN 216131354U
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Abstract
The utility model discloses an open gear oil leakage prevention sealing device of an edge transmission ball mill, which comprises a sealing structure (1), a large gear (2) and a shell (3); the sealing structure (1) and the gearwheel (2) are both arranged inside the shell (3); two ends of the big gear (2) are provided with sealing structures (1); the sealing structure (1) comprises an inclined baffle oil guide device (4), an inclined angle oil baffle groove (5) and an oil receiving groove (6); the inclined baffle oil guide device (4) is arranged in the upper half circle of the inner part of the shell (3); the bevel oil retaining groove (5) is formed in the side wall of the inner portion of the shell (3). The utility model improves the sealing device by combining the principle of physical fluid mechanics, solves the problem of oil leakage generated during starting and stopping, changes the oil retaining groove on the gear into a double-layer labyrinth oil groove, and integrally forms a multi-layer labyrinth structure.
Description
Technical Field
The utility model relates to the technical field of sealing devices, in particular to an open gear oil leakage prevention sealing device of an edge transmission ball mill.
Background
The transmission of the ball mill is generally divided into central transmission and edge transmission, the structure of the edge transmission is a principle that a large gear ring and a small gear form force output, the periphery of a gear set is wrapped by a protective cover shell to be sealed to form an open gear sealing structure, but the design of the shell sealing structure is unreasonable at present, and designers do not consider the actual working condition and the environmental harshness of a site, so that a sealing device has certain defects to cause oil leakage.
The oil leakage phenomenon of the mill is as follows: the attached lubricating oil splashes to the mill shell under the centrifugal force action on the gear in the rotation process of the mill, after a part of a large amount of attached oil on the mill shell flows into the oil retaining grooves on the two sides of the shell, the other part flows onto the large teeth, and the oil return amount of the oil retaining grooves on the gears on the two sides is increased, so that the overflow is caused. Secondly, when the big gear and the small gear are meshed during rotation of the mill, oil is extruded and splashed to the sealing grooves on the two sides of the big gear from between the two teeth after being extruded. When the large gear rotates at a high speed, oil attached to the sealing grooves on the two sides is thrown to the back faces of the oil grooves on the two sides of the shell under the action of centrifugal force, after more oil is accumulated on the back faces of the oil grooves on the two sides, the oil directly flows to the sealing position of the wool felt under the action of gravity and centripetal force, a gap exists between the wool felt and the friction plate seal, and the oil flows out from the gap along the shell, so that the oil leakage phenomenon is caused. And finally, lubricating oil is easy to collect at the top end of the sealing baffle, and when the grinding is stopped, oil on the upper ring gear and the top end of the sealing baffle can flow downwards, and the oil leaks to the cylinder body of the grinding machine from the gap along the sealing of the wool felt, so that the phenomena of oil stain and oil leakage of the shell are caused on the cylinder body. The housing seal structure has a number of drawbacks, and the seal structure is improved.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide an open gear oil leakage prevention sealing device of an edge transmission ball mill, which is improved by combining a physical fluid mechanics principle, solves the problem of oil leakage generated during starting and stopping of the ball mill, can lead oil to smoothly return to an oil pool, simultaneously, the horizontal sealing of wool felts on two sides of a shell is changed into vertical contact sealing to form the last oil return protection, an oil retaining groove on a gear is changed into a double-layer labyrinth oil groove, and a multilayer labyrinth structure is integrally formed; the manufacturing cost is low, the installation is simple, the problem of oil leakage of the shell of the coal mill can be effectively solved, and the loss caused by damage to the large gear due to lubrication failure caused by field environmental pollution and oil leakage can be effectively avoided.
In order to achieve the purpose, the utility model provides an open gear oil leakage prevention sealing device of an edge transmission ball mill, which comprises a sealing structure, a large gear and a shell; the sealing structure and the large gear are arranged in the shell; sealing structures are arranged at two ends of the large gear; the sealing structure comprises an inclined baffle oil guide device, an inclined angle oil retaining groove and an oil receiving groove; the inclined baffle oil guide device is arranged in the upper half ring of the shell; the bevel oil retaining groove is formed in the side wall of the inner part of the shell; the oil receiving groove is connected with the large gear.
Preferably, the oil receiving groove is divided into a first oil receiving groove and a second oil receiving groove; the first oil receiving groove and the second oil receiving groove are separated by a T-shaped friction plate.
Preferably, a first connecting fastener is arranged between the first oil receiving groove and the large gear.
Preferably, the T-shaped friction plate is arranged in the oil receiving groove in a penetrating manner; and the extending end of the lower end of the T-shaped friction plate is connected with a flexible sealing element.
Preferably, the flexible seal is connected to the housing by a second connecting fastener.
Preferably, the inclination angle of the oblique-angle oil baffle groove is 50 degrees; the inclined angle of the inclined baffle oil guide device (4) is 30 degrees.
The utility model has the beneficial effects that:
(1) the device can avoid the gear abrasion accident caused by lubrication failure due to oil leakage of the large gear;
(2) the device is combined with the physical fluid mechanics principle to improve a sealing device, so that the problem of oil leakage generated during starting and stopping is solved, the oil leakage prevention sealing device can enable oil to smoothly return to an oil pool, meanwhile, the horizontal sealing of wool felts on two sides of a shell is changed into vertical contact sealing to form the last oil return protection, an oil retaining groove on a gear is changed into a double-layer labyrinth oil groove, a multi-layer labyrinth structure is integrally formed, and the structural sealing has the advantage of effectively preventing oil leakage;
(3) the device is low in manufacturing cost and simple to install, can effectively solve the problem of oil leakage of the shell of the coal mill, and can effectively avoid the loss caused by the fact that the large gear is damaged due to lubrication failure caused by the problem of site environmental pollution and oil leakage.
Drawings
Fig. 1 is a cross-sectional view of an oil leakage preventing sealing device for an open gear of an edge drive ball mill, which is provided by the utility model.
The reference numbers illustrate:
1-sealing structure, 2-big gear, 3-shell, 4-inclined baffle oil guide device, 5-inclined angle oil retaining groove, 6-oil receiving groove, 7-first oil receiving groove, 8-second oil receiving groove, 9-T type friction plate, 10-first connecting fastener, 11-flexible sealing element and 12-second connecting fastener.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
The utility model provides an embodiment, and referring to fig. 1, fig. 1 is a cross-sectional view of an oil leakage preventing sealing device for an open gear of an edge drive ball mill, which is provided by the utility model.
As shown in fig. 1, in this embodiment, the open gear oil leakage prevention sealing device for the edge drive ball mill mainly includes a sealing structure 1, a large gear 2, a housing 3, an inclined baffle oil guide device 4, an oblique oil baffle groove 5 and an oil receiving groove 6.
In the present embodiment, the sealing structure 1 and the gearwheel 2 are both arranged inside the housing 3; the two ends of the big gear 2 are both provided with a sealing structure 1; the sealing structure 1 comprises an inclined baffle oil guide device 4, an oblique angle oil baffle groove 5 and an oil receiving groove 6; the inclined baffle oil guide device 4 is arranged in the upper half circle of the shell 3; the bevel oil retaining groove 5 is arranged on the inner side wall of the shell 3; the oil receiving groove 6 is connected with the large gear 2.
In the specific embodiment, the oil receiving groove 6 is divided into a first oil receiving groove 7 and a second oil receiving groove 8, and after the oil overflows the first oil receiving groove 7, the second oil receiving groove 8 is used for protection, so that the oil on the large gear 2 is blocked in the two oil grooves; the first oil receiving groove 7 and the second oil receiving groove 8 are separated by a T-shaped friction plate 9, the T-shaped friction plate 9 is arranged in the middle position of the back of the oil groove at two sides of the large gear 2 and faces the center of the mill, sealing friction is changed into vertical contact sealing, fluid is mainly prevented from flowing to sealing friction positions at different positions when the large gear 2 rotates, a last oil return protective groove is formed at the positions of the sealing and the T-shaped friction plate 9, the last oil is prevented from overflowing outwards, lubricating oil can not contact with the friction sealing position, the oil leakage principle is solved, meanwhile, the end part of the T-shaped friction plate 9 is designed with inclination, the oil is brought back into the shell under the action of centrifugal force, and finally the whole sealing is in a labyrinth type, so that oil leakage cannot be caused when the friction position rotates to the upper side or the lower side.
Furthermore, the inclination angle of the bevel oil retaining groove 5 is 50 degrees, the function is to enable accumulated oil on the back of the oil groove to flow to a low point, the installation position of the low point of the bevel oil retaining groove 5 is vertically opposite to the center of the edge distance of the second oil receiving groove 8 additionally arranged on the large gear 2, the function is to enable oil at the low point of the oil grooves on the two sides of the shell to flow into the oil groove of the large gear 2 and continuously and circularly throw the oil to an inclined plate at the top end of the shell, and the lubricating function is increased; the 4 inclination angles of oil device are led to the inclined baffle are 30, and the purpose is when rotatory for gear wheel 2 and double-deck oil groove that keeps off, and on the oil device 4 is led to the inclined baffle of casing top was got rid of oil to adnexed oil under the effect of centrifugal force, oil on the oil device 4 was led to the inclined baffle flowed to the tooth toward the low point, can provide the abundant lubricated effect of gear wheel 2.
Claims (6)
1. The open gear oil leakage prevention sealing device of the edge transmission ball mill is characterized by comprising a sealing structure (1), a large gear (2) and a shell (3); the sealing structure (1) and the large gear (2) are arranged inside the shell (3); two ends of the big gear (2) are provided with sealing structures (1); the sealing structure (1) comprises an inclined baffle oil guide device (4), an inclined angle oil baffle groove (5) and an oil receiving groove (6); the inclined baffle oil guide device (4) is arranged in the upper half circle of the inner part of the shell (3); the bevel oil retaining groove (5) is formed in the side wall of the interior of the shell (3); the oil receiving groove (6) is connected with the large gear (2).
2. An open gear oil-leakage prevention sealing device of an edge transmission ball mill according to claim 1, characterized in that the oil receiving groove (6) is divided into a first oil receiving groove (7) and a second oil receiving groove (8); the first oil receiving groove (7) and the second oil receiving groove (8) are separated by a T-shaped friction plate (9).
3. An open gear oil-leakage prevention sealing device of an edge drive ball mill according to any one of claims 1 or 2, characterized in that a first connecting fastener (10) is arranged between the first oil receiving groove (7) and the gearwheel (2).
4. The open gear oil-leakage-proof sealing device of the edge-driven ball mill according to claim 2, wherein the T-shaped friction plate (9) is penetratingly arranged in the oil receiving groove (6); the lower end extending end of the T-shaped friction plate (9) is connected with a flexible sealing element (11).
5. An open gear oil-leak-proof sealing device of an edge-driven ball mill according to claim 4, characterized in that the flexible sealing member (11) is connected to the housing (3) by a second connecting fastener (12).
6. The open gear oil-leakage-proof sealing device of the edge-driven ball mill according to claim 1, wherein the inclined angle oil-retaining groove (5) is inclined at an angle of 50 °; the inclined angle of the inclined baffle oil guide device (4) is 30 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121349368.0U CN216131354U (en) | 2021-06-17 | 2021-06-17 | Open gear oil leakage-proof sealing device of edge transmission ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121349368.0U CN216131354U (en) | 2021-06-17 | 2021-06-17 | Open gear oil leakage-proof sealing device of edge transmission ball mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216131354U true CN216131354U (en) | 2022-03-25 |
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ID=80766531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121349368.0U Active CN216131354U (en) | 2021-06-17 | 2021-06-17 | Open gear oil leakage-proof sealing device of edge transmission ball mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216131354U (en) |
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2021
- 2021-06-17 CN CN202121349368.0U patent/CN216131354U/en active Active
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