CN217969698U

CN217969698U - Long-life chain supporting wheel

Info

Publication number: CN217969698U
Application number: CN202221508481.3U
Authority: CN
Inventors: 叶攀花
Original assignee: Quanzhou Quanhang Construction Machinery Co ltd
Current assignee: Quanzhou Quanhang Construction Machinery Co ltd
Priority date: 2022-06-16
Filing date: 2022-06-16
Publication date: 2022-12-06
Anticipated expiration: 2032-06-16

Abstract

The utility model discloses a long-life holds in palm sprocket belongs to engineering machine tool accessory technical field, including first, second, wheel body of axle lid and shaft, install the axle sleeve with the shaft contact in the wheel body, first and second axle lid all are provided with the oil blanket with shaft, wheel body and axle sleeve contact, and a plurality of oil duct are seted up to axle sleeve annular interval and a plurality of oil duct are two, and oil duct one sets up with two slopes of oil duct, and the axle sleeve is provided with shelters from partial oil duct one and two one end open-ended shelters from the piece. The utility model discloses a long-life support sprocket makes oil duct one and keeps having lubricating oil in the oil duct two, can lubricate through oil duct one and the lubricating oil in the oil duct two when the wheel body rotates, reduces the wearing and tearing that produce between shaft and the wheel cover, increases the support sprocket life-span.

Description

Long-life chain supporting wheel

Technical Field

The utility model relates to an engineering machine tool accessory technical field specifically is a long-life holds in palm sprocket.

Background

The supporting chain wheel is one of four wheels in a crawler type chassis of an excavator, a bulldozer and the like, and is mainly used for supporting the weight of the excavator and the bulldozer and enabling a crawler to move forward along the wheels.

The lubricating oil in the support chain wheel can be kept to be located at the bottom of the wheel body due to gravity, when the excavator is just started and walks, the oil film on the wheel shaft and the top plate of the shaft sleeve is thin, so that the friction at the top of the shaft sleeve generates heat greatly, heat cannot be transmitted timely, the wheel shaft and the shaft sleeve deform and wear easily, and the service life of the support chain wheel is shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the prior art and providing a long-life support sprocket.

In order to realize the purpose, the utility model adopts the following technical scheme:

the utility model provides a long-life holds in palm sprocket, includes first, second, wheel body of axle cap, install the axle sleeve with the shaft contact in the wheel body, first and second axle cap all are provided with the oil blanket with shaft, wheel body and shaft sleeve contact, a plurality of oil ducts are seted up to axle sleeve annular interval and a plurality of oil duct two, first oil duct and two slopes of oil duct set up, the axle sleeve is provided with shelters from partial oil duct one and two one end open-ended sheltering pieces of oil duct.

By adopting the technical scheme, the blocking piece can not block the first oil passage and the second oil passage opening which are immersed in the lubricating oil at the bottom of the wheel body, the lubricating oil can enter the first oil passage and the second oil passage, when the wheel body rotates, the first oil passage and the second oil passage filled with the lubricating oil are blocked by the blocking piece, the lubricating oil flowing out of the first oil passage, the second oil passage and the blocking piece can be reduced by utilizing the inclination of the first oil passage and the second oil passage, the lubricating oil flowing out of the first oil passage and the second oil passage is reduced, the wheel body can be lubricated by the lubricating oil in the first oil passage and the second oil passage when rotating, the abrasion generated between the wheel shaft and the wheel sleeve is reduced, and the service life of the chain wheel is prolonged.

The utility model discloses further set up to: the inclination directions of the first oil passage and the second oil passage are opposite.

Through adopting above-mentioned technical scheme for when the wheel body rotated towards arbitrary direction, the homoenergetic increased the lubricating oil between axle sleeve and the shaft, improved the lubricated effect of support sprocket.

The utility model discloses further set up to: the shielding piece comprises an eccentric ring which is rotatably connected to the shaft sleeve, the eccentric ring is provided with an oil inlet and a backflow port, and the oil inlet and the backflow port are located in the same gravity direction.

By adopting the technical scheme, the position of the oil inlet and the return port always keeps being located in the same gravity direction under the gravity of the eccentric ring when the supporting chain wheel rotates in any direction, so that the oil inlet is always soaked in the lubricating oil in the wheel body, the lubricating oil can enter the first oil passage and the second oil passage through the oil inlet, when the wheel body rotates, the first oil passage and the second oil passage filled with the lubricating oil can be staggered with the oil inlet and are shielded by the eccentric ring, the lubricating oil flowing out of the first oil passage and the second oil passage is reduced, and when the first oil passage and the second oil passage filled with the lubricating oil correspond to the return ports, the lubricating oil of the first oil passage and the second oil passage can gradually flow out of the first oil passage and the second oil passage, so that the lubricating oil flows back.

The utility model discloses further set up to: and a balancing weight is arranged at the position of the eccentric ring close to the oil inlet.

By adopting the technical scheme, the eccentricity degree of the eccentric ring is further increased, and the position correctness of the eccentric ring is further ensured.

The utility model discloses further set up to: the shaft sleeve is provided with a stop ring through a bolt, and the eccentric ring is positioned on the inner side of the stop ring and is abutted against the stop ring.

By adopting the technical scheme, the stop ring can be used for increasing the rotating stability of the eccentric ring, so that the shielding of the eccentric ring on the first oil passage opening and the second oil passage opening is ensured.

The utility model discloses further set up to: and the oil seal is abutted with openings at the other ends of the first oil passage and the second oil passage.

By adopting the technical scheme, the oil of the first oil passage and the second oil passage can be prevented from flowing out through the first oil passage and the second oil passage towards the opening at one end of the oil seal, so that the time of the oil level in the first oil passage and the second oil passage is prolonged, and the lubricating effect is improved.

To sum up, the utility model discloses following beneficial effect has:

when lubricating oil flows, the first oil duct and the second oil duct are filled with lubricating oil, when the wheel body rotates, lubrication between the shaft sleeve and the shaft body can be increased, abrasion generated between the wheel shaft and the wheel sleeve is reduced, and the service life of the chain wheel is prolonged.

Drawings

Fig. 1 is a schematic structural view of a long-life chain supporting wheel provided by the present invention;

FIG. 2 is a schematic view of the structure within the wheel body;

FIG. 3 is a schematic structural view of the shaft sleeve of the present invention;

fig. 4 is a schematic structural view of the stop ring and the eccentric ring of the present invention.

In the figure: 1. a first shaft cover; 2. a second shaft cover; 3. a wheel body; 4. a wheel axle; 5. a shaft sleeve; 6. oil sealing; 7. a first oil duct; 8. an oil duct II; 9. a stop ring; 10. an eccentric ring; 11. an oil inlet; 12. a return port; 13. and a balancing weight.

Detailed Description

In the following description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like refer to the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present invention.

A long-life chain supporting wheel comprises a first shaft cover 1, a second shaft cover 2, a wheel body 3 and a wheel shaft 4, wherein the first shaft cover 1 and the second shaft cover 2 are connected with the wheel body 3 through bolts, the wheel shaft 4 can penetrate through the first shaft cover 1, a shaft sleeve 5 in contact with the wheel shaft 4 is installed in the wheel body 3 in an interference fit mode, the wheel shaft 4 can penetrate through the shaft sleeve 5 and rotate on the wheel body 3, oil seals 6 in contact with the wheel shaft 4, the wheel body 3 and the shaft sleeve 5 are sleeved on the first shaft cover 1 and the second shaft cover 2, when the first shaft cover 1 and the second shaft cover are connected with the wheel body 3, the oil seals 6 are extruded, the wheel body 6 can be sealed with the wheel shaft 4, the wheel body 3 and the shaft sleeve 5, an oil groove is formed in the wheel body 3, and when lubricating oil is added in the wheel body 3, the lubricating oil can be accumulated at the bottom of the oil groove.

As shown in fig. 2, a plurality of first oil channels 7 and a plurality of second oil channels 8 are formed in the shaft sleeve 5 at intervals, the oil seal 6 can shield an opening of one end, away from the oil groove, of each of the first oil channel 7 and the second oil channel 8, and the first oil channel 7 and the second oil channel 8 are arranged in an inclined manner, so that lubricating oil in the oil groove can be filled into the first oil channel 7 and the second oil channel 8 at the bottom of the wheel body 3, when the wheel body 3 rotates, the positions of the first oil channel 7 and the second oil channel 8 are changed, the lubricating oil in the first oil channel 7 and the second oil channel 8 can lubricate between the wheel body 3 and the wheel shaft 4, and the oil channels flowing out from the first oil channel 7 and the second oil channel 8 can be reduced by utilizing inclination, so that the lubricating effect is ensured, and meanwhile, the inclination directions of the first oil channel 7 and the second oil channel 8 are opposite, so that when the wheel body 3 rotates in any direction, the lubricating oil between the shaft sleeve 5 and the wheel shaft 4 can be increased, and the lubricating effect of the chain supporting wheel is improved.

As shown in fig. 3, the shaft sleeve 5 is provided with a shielding member, the shaft sleeve 5 is provided with a stop ring 9 through a bolt, the shielding member includes an eccentric ring 10 rotating on the shaft sleeve 5 through the stop ring 9, the eccentric ring 10 is inside the stop ring 9 and abuts against the stop ring 9, wherein the eccentric ring 10 is provided with an oil inlet 11 and a return port 12, the oil inlet 11 and the return port 12 are located in the same gravity direction, the oil inlet 11 is close to the bottom of the wheel body 3, and a counterweight 13 is arranged at a position of the eccentric ring 10 close to the oil inlet 11, so that when the wheel body 3 rotates arbitrarily, the positions of the oil inlet 11 and the return port 12 always remain in the same gravity direction due to the gravity of the eccentric ring 10, and the oil inlet 11 is close to the bottom of the wheel body 3.

In an initial state, the oil inlet 11 is always soaked in the lubricating oil in the wheel body 3, the lubricating oil can enter the first oil passage 7 and the second oil passage 8 through the oil inlet 11, so that the first oil passage 7 and the second oil passage 8 are filled, when the wheel body 3 rotates, the first oil passage 7 and the second oil passage 8 filled with the lubricating oil can be dislocated from the oil inlet 11 and are shielded by the eccentric ring 10, the lubricating oil flowing out of the first oil passage 7 and the second oil passage 8 is reduced, when the first oil passage 7 and the second oil passage 8 filled with the lubricating oil are close to the top of the wheel body 3, the first oil passage 7 and the second oil passage 8 filled with the lubricating oil correspond to the return openings 12, the lubricating oil in the first oil passage 7 and the second oil passage 8 can gradually flow out of the first oil passage 7 and the second oil passage 8, so that the lubricating oil flows back, the lubricating oil in the first oil passage 7 and the second oil passage 8 can still lubricate the wheel body 3 and the wheel shaft 4, the lubricating oil can be ensured to flow, the lubrication between the shaft body 5 and the shaft body can be increased, the heat dissipation can be facilitated, the abrasion generated between the wheel shaft 4 and the wheel sleeve can be reduced, and the service life of the supporting chain wheel can be prolonged.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a long-life holds in palm sprocket, includes axle cap one (1), axle cap two (2), wheel body (3) and shaft (4), its characterized in that: the oil seal type wheel is characterized in that a shaft sleeve (5) in contact with the wheel shaft (4) is installed in the wheel body (3), oil seals (6) in contact with the wheel shaft (4), the wheel body (3) and the shaft sleeve (5) are arranged on the first shaft cover (1) and the second shaft cover (2), a plurality of first oil channels (7) and a plurality of second oil channels (8) are arranged on the shaft sleeve (5) in an annular spaced mode, the first oil channels (7) and the second oil channels (8) are arranged in an inclined mode, and a shielding piece for shielding part of the first oil channels (7) and one end of the second oil channels (8) is opened is arranged on the shaft sleeve (5).

2. The long life carrier sprocket as set forth in claim 1, wherein: the inclination directions of the first oil passage (7) and the second oil passage (8) are opposite.

3. The long life carrier sprocket as set forth in claim 1, wherein: the shielding piece comprises an eccentric ring (10) which is rotatably connected to the shaft sleeve (5), an oil inlet (11) and a backflow port (12) are formed in the eccentric ring (10), and the oil inlet (11) and the backflow port (12) are located in the same gravity direction.

4. The long life carrier roller as in claim 3, wherein: and a balancing weight (13) is arranged at the position, close to the oil inlet (11), of the eccentric ring (10).

5. The long life carrier sprocket as set forth in claim 3, wherein: the shaft sleeve (5) is provided with a stop ring (9) through a bolt, and the eccentric ring (10) is positioned on the inner side of the stop ring (9) and is abutted against the stop ring (9).

6. The long life carrier sprocket as set forth in claim 1, wherein: and the oil seal (6) is abutted with openings at the other ends of the first oil passage (7) and the second oil passage (8).