CN219013351U - Low-abrasion oil seal dust-proof device - Google Patents

Abstract

The utility model discloses a low-abrasion oil seal dustproof device, which relates to the technical field of dustproof devices and comprises a first rotating shaft and a second rotating shaft, wherein two annular grooves are formed in the upper surface of the second rotating shaft, an oil seal is connected to the inner wall of each annular groove in a sliding manner, a fixed ring is fixedly connected to the lower surface of each oil seal, two square grooves are formed in the lower surface of each first rotating shaft, the upper ends of the oil seals extend into the square grooves and are in sliding connection with the inner walls of the square grooves, two first sliding grooves are formed in the second rotating shaft, and two push rods are connected to the inner walls of the first sliding grooves in a sliding manner. According to the low-abrasion oil seal dustproof device, when the upper end of the oil seal is abraded, gaps appear between the oil seal and the square groove, the first spring can push the push rod to slide on the inner wall of the first sliding groove, and the upper end of the push rod can push the oil seal to slide upwards.

Description

Low-abrasion oil seal dust-proof device

Technical Field

The utility model relates to the technical field of dustproof devices, in particular to a low-abrasion oil seal dustproof device.

Background

The oil seal, namely a mechanical element for sealing oil, isolates the parts to be lubricated in the transmission part from the output parts, so that lubricating oil is prevented from leaking, and external dust is prevented from entering the parts to be lubricated, so that the effect of sealing oil in and preventing dust out is achieved, and the oil seal is widely applied to industries such as household appliances, automobile engines, chemical industry and the like. For some shaft parts used in outdoor environments, the oil sealing device is required to have better sealing and dustproof effects, so that the service lives of the oil sealing device and mechanical parts are prolonged.

Through consulting, some oil seals on the device that needs the rotation can appear wearing and tearing because of long-time rotation, and the circumstances that the oil seal leaked oil will appear in the time overlength of wearing and tearing, and the oil seal leaked oil can lead to the fact the harm to mechanical parts, slows down the life of oil seal and mechanical parts, causes the circumstances that the machinery damaged in service, and mechanical damage can waste a large amount of manpower and materials, can also lead to the fact the threat to operator's health moreover.

Disclosure of Invention

The utility model aims to at least solve one of the technical problems in the prior art and can solve the problem of a low-abrasion oil seal dustproof device.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a low wear oil blanket dust keeper, includes first rotation axis and second rotation axis, two ring channels have been seted up to the upper surface of second rotation axis, the inner wall sliding connection of ring channel has the oil blanket, the fixed ring of lower fixed surface of oil blanket, two square grooves have been seted up to the lower surface of first rotation axis, the upper end of oil blanket extends into the square inslot and with the inner wall sliding connection of square groove, two first sliding grooves have been seted up to the inside of second rotation axis, the inner wall sliding connection of first sliding groove has two push rods, the upper end of push rod slides and runs through into the inside of ring channel and with the lower fixed surface fixed connection of fixed ring, fixedly connected with first spring between the diapire of lower extreme and the first sliding groove of push rod.

Preferably, the upper surface of the second rotating shaft is fixedly connected with two fixing blocks, the lower surface of the first rotating shaft is provided with two fixing grooves, and the upper ends of the fixing blocks extend into the fixing grooves and are in sliding connection with the inner walls of the fixing grooves.

Preferably, the push rod is in an inverted T shape.

Preferably, the upper surface of the oil seal is fixedly connected with a wear-resistant layer.

Preferably, the left side of fixed block has seted up the spacing groove, and the second sliding tray has been seted up to the left side inner wall of fixed slot, and the inner wall sliding connection of second sliding tray has the gag lever post, and the right-hand member of gag lever post extends into the fixed slot, and the one end that the gag lever post is located the fixed slot coincides with the spacing groove, fixedly connected with second spring between the inner wall of second sliding tray and the left end of gag lever post.

Compared with the prior art, the utility model has the beneficial effects that:

(1) This low wearing and tearing oil blanket dust keeper, when wearing and tearing appear in the upper end of oil blanket, there is the gap to appear between oil blanket and the square groove, and first spring can promote the push rod and slide on the inner wall of first sliding tray, and the upper end of push rod can promote the oil blanket and upwards slide, and the gap that appears with the wearing and tearing of oil blanket upper end is blocked up to tiny earth, dust get into, alright greatly improve the reliability of overhanging axle department oil blanket, reduce the pollution that the oil leak caused, reduce because of shutting down to change the oil blanket, the waste of time, manual work and material resources that causes.

(2) This low wearing and tearing oil blanket dust keeper, the shape of push rod is the shape of falling T, and the horizontal pole of push rod slides on the inner wall of first sliding tray, can' T run through into the inner wall of ring channel, and the horizontal pole that prevents that this kind of shape from push rod from breaking away from the inner wall of first sliding tray that can be fine causes the harm to the oil blanket, has improved the reliability of oil blanket, reduces the pollution that the oil leak caused, has reduced the extravagant manpower and materials of change oil blanket because of damaging.

(3) This low wearing and tearing oil blanket dust keeper, the upper surface fixedly connected with two fixed blocks of second rotation axis, two fixed slots have been seted up to the lower surface of first rotation axis, the upper end sliding connection of fixed block is on the inner wall of fixed slot, the upper end of fixed block slides the inner wall that can prevent the dust entering oil blanket well on the inner wall of fixed slot, through setting up the fixed block, prevent outside dust and sand to get into the inside of square groove and cause the destruction to the oil blanket, prolonged the life of oil blanket, improved the sealed effect of oil blanket.

Drawings

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

FIG. 1 is a schematic diagram of a low-wear oil seal dust-proof device according to the present utility model;

FIG. 2 is a front plan view of the dust keeper of the present utility model;

FIG. 3 is a schematic diagram of an oil seal structure according to the present utility model;

fig. 4 is an enlarged view at a in fig. 2.

Reference numerals: 1. a first rotation shaft; 2. a second rotation shaft; 3. a wear-resistant layer; 4. an annular groove; 5. an oil seal; 6. a square groove; 7. a push rod; 8. a first sliding groove; 9. a first spring; 10. a fixed block; 11. a fixing groove; 12. a second sliding groove; 13. a limit rod; 14. a second spring; 15. a limit groove; 16. and a fixing ring.

Detailed Description

Referring to fig. 1-4, the present utility model provides a technical solution: the utility model provides a low wearing and tearing oil blanket dust keeper, including first rotation axis 1 and second rotation axis 2, two ring grooves 4 have been seted up to the upper surface of second rotation axis 2, the inner wall sliding connection of ring groove 4 has oil blanket 5, the fixed ring 16 of lower surface fixedly connected with of oil blanket 5, two square grooves 6 have been seted up to the lower surface of first rotation axis 1, the upper end of oil blanket 5 extends into in the square groove 6 and with the inner wall sliding connection of square groove 6, two first sliding grooves 8 have been seted up to the inside of second rotation axis 2, the inner wall sliding connection of first sliding groove 8 has two push rods 7, the upper end slip of push rod 7 runs through the inside of entering ring groove 4 and with fixed ring 16's lower surface fixed connection, fixedly connected with first spring 9 between the lower extreme of push rod 7 and the diapire of first sliding groove 8, the first spring 9 of fixing on the diapire of first sliding groove 8 is compressed state, when the upper end of oil blanket 5 appears wearing and tearing, there is the gap to appear between oil blanket 5 and the square groove 6, first spring 9 can promote push rod 7 on the inner wall of first sliding groove 8, and push rod 7's upper end slip can push rod 16 on the fixed ring 16, and the slip can cause the slip to stop because of the oil blanket, the slip can reduce the dust seal to the slip, the slip can cause the dust seal to stop, the dust seal is greatly lost, the dust seal is greatly changed, the dust seal is avoided to the slip to the end is greatly lost to the end of the seal, and can be difficult to cause the dust seal to be difficult to the slip and the dust seal to be easy to the slip and the dust.

The shape of push rod 7 is the shape of falling T, and the horizontal pole of push rod 7 slides on the inner wall of first sliding tray 8, can' T cross the inner wall of entering ring channel 4, and the horizontal pole that this kind of shape can be fine prevents push rod 7 breaks away from the inner wall of first sliding tray 8, and causes the harm to oil blanket 5, has improved the reliability of oil blanket, reduces the pollution that the oil leak caused, has reduced the extravagant manpower and materials of change oil blanket because of damaging.

The upper surface fixedly connected with two fixed blocks 10 of second rotation axis 2, the upper end of fixed block 10 extends into fixed slot 11 and with fixed slot 11's inner wall sliding connection, the upper end of fixed block 10 slides and can prevent well that the dust from getting into the inner wall of oil blanket 5 on fixed slot 11's inner wall, through setting up fixed block 10, prevents outside dust and sand to get into the inside of square groove 6 and cause the destruction to oil blanket 5, has prolonged the life of oil blanket 5, has improved the sealed effect of oil blanket 5.

The upper surface fixedly connected with wearing layer 3 of oil blanket 5, the material of oil blanket 5 is rubber, the material of wearing layer 3 is polytetrafluoroethylene film, polytetrafluoroethylene activation membrane is by polytetrafluoroethylene film, filling film and colored film, again through surface activation treatment form, can be with the oil blanket 5 complex of material for rubber, the polytetrafluoroethylene film of film has stand wear and tear advantage, can reduce the wearing and tearing condition of oil blanket well, increase the life of oil blanket, simultaneously, polytetrafluoroethylene film's coefficient of friction is extremely low, can make the rotation axis normally work, the resistance of rotation axis when rotatory has been reduced.

The limiting groove 15 is formed in the left side of the fixed block 10, the second sliding groove 12 is formed in the left side inner wall of the fixed groove 11, the limiting rod 13 is connected to the inner wall of the second sliding groove 12 in a sliding mode, the right end of the limiting rod 13 extends into the fixed groove 11, one end of the limiting rod 13 located in the fixed groove 11 is matched with the limiting groove 15, the second spring 14 is fixedly connected between the inner wall of the second sliding groove 12 and the left end of the limiting rod 13, when an operator slides the fixed block 10 into the inner wall of the fixed groove 11, the fixed block 10 pushes the limiting rod 13 to slide leftwards, the second spring 14 can compress the second spring 14, after the upper end of the fixed block 10 is attached to the top wall of the fixed groove 11, the limiting rod 13 is pushed to slide into the inner wall of the limiting groove 15, and the sliding of the fixed groove 11 is limited by the structure.

Working principle: when the upper end of the oil seal 5 in the device is worn, a gap appears between the oil seal 5 and the square groove 6, the first spring 9 can push the push rod 7 to slide on the inner wall of the first sliding groove 8, the upper end of the push rod 7 can push the fixing ring 16 to slide upwards, the sliding of the fixing ring 16 can drive the oil seal 5 to slide, the gap that the upper end of the oil seal 5 is worn is blocked, when an operator slides the fixing block 10 into the inner wall of the fixing groove 11, the fixing block 10 can push the limiting rod 13 to slide leftwards, the sliding of the limiting rod 13 can compress the second spring 14, after the upper end of the fixing block 10 is attached to the top wall of the fixing groove 11, the second spring 14 can push the limiting rod 13 to slide into the inner wall of the limiting groove 15, and the sliding of the fixing groove 11 is limited.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the above embodiments, and various changes can be made within the knowledge of one of ordinary skill in the art without departing from the spirit of the present utility model.

Claims (5)

1. The utility model provides a low wearing and tearing oil blanket dust keeper, includes first rotation axis (1) and second rotation axis (2), its characterized in that: two ring grooves (4) have been seted up on the upper surface of second rotation axis (2), the inner wall sliding connection of ring groove (4) has oil blanket (5), the lower fixed surface of oil blanket (5) is connected with solid fixed ring (16), two square grooves (6) have been seted up on the lower surface of first rotation axis (1), the upper end of oil blanket (5) extend into in square groove (6) and with the inner wall sliding connection of square groove (6), two first sliding tray (8) have been seted up in the inside of second rotation axis (2), the inner wall sliding connection of first sliding tray (8) has two push rods (7), the upper end of push rod (7) slides and runs through the inside of entering ring groove (4) and with solid fixed ring (16) lower fixed surface connection, fixedly connected with first spring (9) between the lower extreme of push rod (7) and the diapire of first sliding tray (8).

2. The low wear oil seal dust guard of claim 1, wherein: the upper surface of second rotation axis (2) fixedly connected with two fixed blocks (10), two fixed slots (11) have been seted up to the lower surface of first rotation axis (1), and the upper end of fixed block (10) extends into in fixed slot (11) and with the inner wall sliding connection of fixed slot (11).

3. The low wear oil seal dust guard of claim 1, wherein: the push rod (7) is in an inverted T shape.

4. The low wear oil seal dust guard of claim 1, wherein: the upper surface of the oil seal (5) is fixedly connected with a wear-resistant layer (3).

5. A low wear oil seal dust guard as claimed in claim 2, wherein: limiting grooves (15) are formed in the left side of the fixing block (10), second sliding grooves (12) are formed in the left side inner wall of the fixing grooves (11), limiting rods (13) are connected to the inner walls of the second sliding grooves (12) in a sliding mode, the right ends of the limiting rods (13) extend into the fixing grooves (11), one ends of the limiting rods (13) located in the fixing grooves (11) are matched with the limiting grooves (15), and second springs (14) are fixedly connected between the inner walls of the second sliding grooves (12) and the left ends of the limiting rods (13).

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