CN219749983U

CN219749983U - Novel thrust wheel for bulldozer

Info

Publication number: CN219749983U
Application number: CN202321240764.9U
Authority: CN
Inventors: 韦贵华; 刘欢
Original assignee: Quanzhou Huaheng Construction Machinery Co ltd
Current assignee: Quanzhou Huaheng Construction Machinery Co ltd
Priority date: 2023-05-22
Filing date: 2023-05-22
Publication date: 2023-09-26
Anticipated expiration: 2033-05-22

Abstract

The utility model discloses a novel thrust wheel for a bulldozer, which belongs to the technical field of thrust wheels and comprises a main shaft, a wheel body and two side covers, wherein the main shaft penetrates into the wheel body, the side covers are nested at two ends of the main shaft, a boss is arranged at the central position of the main shaft, two groups of assembly sleeves for thrust the main shaft are arranged between the main shaft and the wheel body, the assembly sleeves are symmetrically arranged with the boss as a center, the assembly sleeves are abutted against the boss, a first clamping spring for thrust assembly sleeves is arranged on the wheel body, the thrust effect is achieved by mutual abutting of the boss on the main shaft, the assembly sleeves and the first clamping spring, and only a single uniform force is finally applied to the clamping spring, so that the clamping spring is not easy to collapse, the side covers can realize thrust through the second clamping spring, so that thrust force cannot be overlapped with internal parts, and stability of the thrust wheel is better maintained.

Description

Novel thrust wheel for bulldozer

Technical Field

The utility model discloses a novel thrust wheel for a bulldozer, and belongs to the technical field of thrust wheels.

Background

The wheel is used for supporting the weight of engineering vehicles with tracks, rolling on the guide rails or the track plate surfaces of the tracks, and limiting the tracks, and is usually in muddy water dust and subjected to strong impact, so that the wheel is generally reliable in sealing, and the wheel rim is wear-resistant, and is widely used in the field of bulldozers.

Regarding the thrust wheel, the existing design is mostly applied to the excavator, for example, a thrust wheel assembly with a patent publication number of CN211685384U comprises a side cover, a wheel body and a support shaft, a sealing assembly is arranged between the wheel body and the side cover, the cross section of a floating seal ring is of a convex structure, a first O-shaped ring and a second O-shaped ring are respectively positioned on two sides of the convex structure of the floating seal ring, one surface of the first O-shaped ring is abutted against one side surface of the convex structure of the floating seal ring, the other surface of the first O-shaped ring is abutted against one surface of the wheel body, one surface of the second O-shaped ring is abutted against the inner side surface of the side cover, the other surface of the second O-shaped ring is abutted against the other side surface of the convex structure of the floating seal ring, and the thrust wheel guarantees tightness and prevents lubricating oil in the thrust wheel assembly from leaking.

The copper bush of the thrust wheel is embedded and installed from the outside into the wheel body, and the side cover and the bayonet lock are installed to realize thrust, so that all thrust is finally borne by the bayonet lock, but the crawler belt of the bulldozer has different use frequency and use time of the crawler belt of the bulldozer is longer than that of the crawler belt of the bulldozer, and the bayonet lock is easily broken due to the fact that the bayonet lock is subjected to uneven thrust conducted from different positions of the main shaft and the side cover for a long time when the structure in the application is applied to the bulldozer, and therefore, the utility model provides a new scheme.

Disclosure of Invention

The present utility model has been made to solve the above-mentioned problems, and an object of the present utility model is to provide a novel thrust wheel for a bulldozer.

The novel thrust wheel for the bulldozer comprises a main shaft, a wheel body and two side covers, wherein the main shaft penetrates through the wheel body, the side covers are nested at two ends of the main shaft, a boss is arranged at the center position of the main shaft, two groups of assembly sleeves for thrust main shafts are arranged between the main shaft and the wheel body, the assembly sleeves are symmetrically arranged by taking the boss as a center, the assembly sleeves are abutted against the boss, and a first clamping spring for thrust assembly sleeve is arranged on the wheel body.

Preferably, the assembly sleeve comprises an iron sleeve and a copper sleeve, the copper sleeve comprises an embedded part and a thrust part, the embedded part is embedded in the iron sleeve, and two ends of the thrust part are respectively abutted against the iron sleeve and the boss.

Preferably, clamping grooves are formed in the two ends of the main shaft, and a second clamping spring for the thrust side cover is arranged in the clamping grooves.

Preferably, an oil injection groove for injecting lubricating oil is formed in the main shaft, an oil seal cavity is formed between the iron sleeve and the side cover, a liquid guide groove is formed in the main shaft, two ends of the liquid guide groove are respectively communicated with the oil injection groove and the oil seal cavity, and a floating oil seal is arranged in the oil seal cavity.

Preferably, a plurality of sealing O-shaped rings I are arranged between the wheel body and the iron sleeve, and a plurality of sealing O-shaped rings II are arranged between the main shaft and the side cover.

Preferably, the main shaft is a forged steel part, and the side cover is a spheroidal graphite part.

Preferably, the main shaft is provided with an oil blocking screw for sealing the oil injection groove, and the oil blocking screw is in threaded connection with the main shaft.

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

1. according to the thrust wheel disclosed by the utility model, the thrust effect is achieved by mutually propping each part in the thrust wheel through the boss on the main shaft, the total set and the first clamping spring, and only a single uniform force is finally applied to the clamping spring, so that the clamping spring is not easy to collapse, and the side cover can realize thrust through the second clamping spring, so that the thrust of the side cover cannot be overlapped with internal parts, and the stability of the thrust wheel is better maintained.

2. Because the main shaft of the thrust wheel adopts the forged steel piece, the forged steel piece has higher resistance and larger bearing force compared with the ball ink piece, so the thrust wheel has better service performance, and the side covers which do not play a supporting role adopt the ball ink piece, so the ball ink piece has better wear resistance and is more suitable for the side covers which are arranged on two sides.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the present utility model in a cut-away configuration;

FIG. 3 is a schematic view of the copper sheathing of the present utility model;

fig. 4 is a schematic exploded view of the present utility model.

Reference numerals: 1. a main shaft; 2. a wheel body; 3. a side cover; 4. a boss; 5. a total set; 51. an iron sleeve; 52. a copper sleeve; 521. a fitting portion; 522. a thrust portion; 6. a clamp spring I; 7. a clamping groove; 8. a second clamp spring; 9. an oil injection groove; 10. an oil seal cavity; 11. a liquid guiding groove; 12. a floating oil seal; 13. sealing the first O-shaped ring; 14. sealing the second O-shaped ring; 15. and (5) oil plugging screws.

Detailed Description

In the following description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model, and it is obvious that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a novel thrust wheel for bulldozer, as shown in fig. 1, including main shaft 1, wheel body 2 and two side caps 3, wherein, main shaft 1 wears to locate in wheel body 2, as shown in fig. 2, fig. 4, the central point of main shaft 1 puts and is provided with boss 4, be provided with two sets of total sets 5 between main shaft 1 and the wheel body 2, two sets of total sets 5 regard boss 4 as central symmetry setting, and total sets 5 are constituteed by iron cover 51 and copper cover 52, wherein, as shown in fig. 3, copper cover 52 still includes gomphosis portion 521 and thrust portion 522, when installing the thrust wheel, it is required to nest the gomphosis portion 521 of copper cover 52 in iron cover 51 earlier, and make the thrust portion 522 of copper cover 52 and the terminal surface butt of iron cover 51, thereby accomplish the installation of total sets 5, then with the thrust portion 522 of copper cover 52 towards main shaft 1, and set 5 cover main shaft 1, let the other face of thrust portion 522 of copper cover 52 and the boss 4 butt of main shaft 1, the total sets 5 at this moment will realize thrust to main shaft 1.

As shown in fig. 2 and 4, a groove is formed in the wheel body 2 at a position of the iron sleeve 51 away from the boss 4, a first clamp spring 6 is embedded in the groove, and one side of the first clamp spring 6 close to the inner side is simultaneously abutted against the wheel body 2 and the iron sleeve 51, so that thrust is formed on the assembly sleeve 5, the assembly sleeve 5 itself forms thrust on the main shaft 1, and therefore, a uniform force is formed by the thrust of the main shaft 1 and the assembly sleeve 5 and is applied to the first clamp spring 6, and the first clamp spring 6 is more stable.

As shown in fig. 1, fig. 2 and fig. 4, the side cover 3 is nested on two ends of the main shaft 1, and two ends of the main shaft 1 are respectively provided with a clamping groove 7, two clamping springs 8 are arranged in the clamping grooves 7, one side, close to the inner side, of each clamping spring 8 is simultaneously abutted against the side cover 3 and the main shaft 1, so that thrust is formed on the side cover 3, the thrust of the main shaft 1 and the thrust of the side cover 3 are separately born, the burden on parts is reduced, the service life of the parts is prolonged, the operation is more stable, and the device is more suitable for bulldozers in which the thrust wheels need to frequently operate.

The side cover 3 adopts the ball ink piece, the wear resistance of the ball ink piece is better, therefore, the service life of the side cover 3 can be longer, the main shaft 1 adopts the forged steel piece, the forged steel piece has higher resistance, the bearing force is larger, meanwhile, the copper sleeve 52 is propped against the main shaft 1 instead of the side cover 3, the phenomenon that the copper sleeve 52 rubs the side cover 3 of the ball ink piece to generate fragments can be avoided, so that the situation of damage to the thrust wheel occurs, because the process for reducing the roughness of the ball ink piece is complex, the ball ink piece is generally rough, the forged steel piece adopted by the main shaft 1 can reach extremely low roughness through simple polishing, the friction between the main shaft 1 and the copper sleeve 52 can be very small, the fragments are not easy to generate, and the probability of damage caused by the fragments is greatly reduced.

As shown in figure 2, the oil injection groove 9 is formed at one end of the main shaft 1, a user can inject lubricating oil into the supporting wheel through the oil injection groove 9, the oil injection groove 9 is sealed by an oil blocking screw 15 in threaded connection on the main shaft 1, an oil seal cavity 10 is arranged between the iron sleeve 51 and the side cover 3, the main shaft 1 is provided with a liquid guide groove 11 with two ends respectively communicated with the oil injection groove 9 and the oil seal cavity 10, so that the lubricating oil injected into the oil injection groove 9 enters into the oil seal cavity 10 along the liquid guide groove 11 and then flows to various positions in the supporting wheel, friction between parts in the supporting wheel is reduced, a floating oil seal 12 is further arranged in the oil seal cavity 10, gaps between the iron sleeve 51 and the side cover 3 can be sealed, a plurality of sealing O-shaped rings 13 are arranged between the wheel body 2 and the iron sleeve 51, a plurality of sealing O-shaped rings 14 are arranged between the main shaft 1 and the side cover 3, and the sealing O-shaped rings 13 and the sealing O-shaped rings 14 can increase sealing effect and prevent the lubricating oil from leaking.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model 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 disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.

Claims

1. The utility model provides a bulldozer is with novel thrust wheel, includes main shaft (1), wheel body (2) and two side cap (3), its characterized in that: the novel anti-thrust main shaft is characterized in that the main shaft (1) is arranged in the wheel body (2) in a penetrating mode, the side covers (3) are nested on two ends of the main shaft (1), a boss (4) is arranged at the central position of the main shaft (1), two groups of assembly sleeves (5) for thrust the main shaft (1) are arranged between the main shaft (1) and the wheel body (2), the assembly sleeves (5) are symmetrically arranged by taking the boss (4) as the center, the assembly sleeves (5) are abutted against the boss (4), and a clamp spring I (6) for thrust the assembly sleeves (5) is arranged on the wheel body (2).

2. The novel thrust wheel for a bulldozer according to claim 1, in which: the assembly sleeve (5) comprises an iron sleeve (51) and a copper sleeve (52), the copper sleeve (52) comprises a jogged part (521) and a thrust part (522), the jogged part (521) is nested in the iron sleeve (51), and two ends of the thrust part (522) are respectively abutted against the iron sleeve (51) and the boss (4).

3. The novel thrust wheel for a bulldozer according to claim 1, in which: clamping grooves (7) are formed in the two ends of the main shaft (1), and clamp springs II (8) used for the thrust side covers (3) are arranged in the clamping grooves (7).

4. The novel thrust wheel for a bulldozer according to claim 2, in which: an oil injection groove (9) for injecting lubricating oil is formed in the main shaft (1), an oil seal cavity (10) is formed between the iron sleeve (51) and the side cover (3), a liquid guide groove (11) is formed in the main shaft (1), two ends of the liquid guide groove (11) are respectively communicated with the oil injection groove (9) and the oil seal cavity (10), and a floating oil seal (12) is arranged in the oil seal cavity (10).

5. The novel thrust wheel for a bulldozer according to claim 4, in which: a plurality of sealing O-shaped rings I (13) are arranged between the wheel body (2) and the iron sleeve (51), and a plurality of sealing O-shaped rings II (14) are arranged between the main shaft (1) and the side cover (3).

6. The novel thrust wheel for a bulldozer according to claim 1, in which: the main shaft (1) is a forged steel part, and the side cover (3) is a spheroidal graphite part.

7. The novel thrust wheel for a bulldozer according to claim 4, in which: the main shaft (1) is provided with an oil blocking screw (15) for sealing the oil injection groove (9), and the oil blocking screw (15) is in threaded connection with the main shaft (1).