CN210502937U

CN210502937U - Novel thrust wheel of excavator

Info

Publication number: CN210502937U
Application number: CN201921632352.3U
Authority: CN
Inventors: 蒋孝军; 杨元恭
Original assignee: Quanzhou Hengtong Machinery Parts Co ltd
Current assignee: Quanzhou Hengtong Machinery Parts Co ltd
Priority date: 2019-09-28
Filing date: 2019-09-28
Publication date: 2020-05-12
Anticipated expiration: 2029-09-28

Abstract

The utility model discloses a thrust wheel of a novel excavator, which comprises a wheel shaft and a wheel body, wherein the wheel body is formed by a left half wheel body and a right half wheel body which are in interference fit, a raised disc is arranged in the middle of the wheel shaft along the circumferential direction, a steel bushing matched with the raised disc is arranged in each half wheel body, an alloy bearing bush is arranged in each steel bushing, the alloy bearing bush is fixed on the steel bushing through a small round pin, side covers are arranged at two ends of the wheel shaft, the interior of each side cover is in sealing fit with the wheel shaft through a first O-shaped sealing ring, and an oil seal matched with the wheel body is arranged on the inner; the utility model discloses will reduce the inside wearing and tearing of thrust wheel by a wide margin, and the product operation is more stable in the same direction as smooth, has prolonged product life, has reduced the product fault rate, has improved economic benefits.

Description

Novel thrust wheel of excavator

Technical Field

The utility model relates to an excavator technical field, concretely relates to novel thrust wheel of excavator.

Background

With the development of the engineering machinery market, urban capital construction projects are increasing day by day, the demand for small-tonnage excavators is gradually increased, and the thrust wheel is used as an important part of an excavator walking system and has high requirements on quality stability. The common excavator supporting wheel in the existing engineering machinery industry has the defects of short installation service life, easy oil leakage, high failure rate, incapability of meeting the requirements of long-time walking working conditions and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned weak point that exists among the prior art, the utility model aims to provide a novel thrust wheel of excavator, it has improved the operation stationarity of thrust wheel through inner structure's improved design, reduces trouble probability such as oil leak to can adapt to the special operating mode of certain long-time continuous operation walking.

The utility model discloses a following technical scheme realizes: the utility model provides a novel thrust wheel of excavator, includes shaft and wheel body, the wheel body passes through interference fit by half wheel body on the left side and half wheel body on the right side, the shaft middle part is equipped with protruding disc along circumference, be equipped with in every half wheel body with protruding disc complex steel bushing, the inside alloy axle bush that is equipped with of steel bushing, the alloy axle bush passes through the small circle round pin to be fixed on the steel bushing, the side cap is installed at the shaft both ends, and every side cap is inside to be equipped with wheel body complex oil blanket through first O type sealing washer and shaft seal fit, every side cap inboard.

Preferably, a second O-shaped sealing ring is respectively arranged between the oil seal of the utility model and the side cover and between the oil seal and the wheel body,

preferably, the side cover is provided with a screw mounting hole for mounting and fixing on a machine chassis frame.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

1. the utility model discloses improved the design of shaft, for the cylinder straight axle with original ordinary thrust wheel, the protruding disc has been designed for the middle part to modified shaft, and it is spacing that this disc string moved about when rotatory as the wheel body, and the disc both sides are through quench hardening processing, have improved wear resistance, more can increase of service life.

2. This novel structure wheel body is inside to have increased the design of steel bushing part, and the purpose that increases the steel bushing is in order to match with axle flange design, and the steel bushing passes through interference fit and hole retaining ring to be fixed at the internal hole site of wheel, forms spacing pivoted structure with axle flange.

3. The inner hole of the steel bushing with the novel structure is pressed and mounted with the copper alloy bearing bush, and the end face is fixed by the small round pin. After the thrust wheel mounting machine is mounted, the bearing weight is transmitted to the shaft through the wheel body, the steel bushing and the bearing bush, the surface of the shaft is ground at high precision and is in contact with the copper alloy bearing bush on the steel bushing, the design greatly reduces the internal abrasion loss of the thrust wheel, and the service life of a product is prolonged.

4. After the technical scheme is implemented, the internal abrasion of the thrust wheel is greatly reduced, the product runs more stably and smoothly, the service life of the product is prolonged, the failure rate of the product is reduced, and the economic benefit is improved.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a side view of the structure of the present invention;

wherein: the wheel comprises a wheel shaft 1, a left wheel body 2, a right wheel body 3, a convex disc 4, a steel sleeve 5, an alloy bearing bush 6, a small round pin 7, a side cover 8, a clamping ring 9, an oil seal 10, a second O-shaped sealing ring body 11 and a screw mounting hole 12.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The thrust wheel of the novel excavator in the embodiment is shown in fig. 1 and fig. 2, and comprises a wheel shaft 1 and a wheel body, wherein the wheel body is formed by a left half wheel body 2 and a right half wheel body 3 in interference fit, a raised disc 4 is arranged in the middle of the wheel shaft 1 along the circumferential direction, a steel sleeve 5 matched with the raised disc 4 is arranged in each half wheel body, a clamping ring 9 matched with the wheel body is arranged on each steel sleeve 5, an alloy bearing bush 6 is arranged in each steel sleeve 5, the alloy bearing bush 6 is fixed on each steel sleeve 5 through a small round pin 7, side covers 8 are arranged at two ends of the wheel shaft 1, a first O-shaped sealing ring 9 is arranged in each side cover 8 and is in sealing fit with the wheel shaft 1, an oil seal 10 matched with the wheel body is arranged on the inner side of each side cover 8, internal lubricating oil can be sealed; and a second O-shaped sealing ring 11 is arranged between the oil seal 10 and the side cover 8 and the wheel body respectively, and a screw mounting hole 12 is arranged on the side cover 8 and is used for mounting and fixing on a chassis frame of a machine.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The utility model provides a novel thrust wheel of excavator which characterized in that: including shaft and wheel body, the wheel body passes through interference fit by left half wheel body and right half wheel body, the shaft middle part is equipped with protruding disc along circumference, be equipped with in every half wheel body with protruding disc complex steel bushing, the inside alloy axle bush that is equipped with of steel bushing, the alloy axle bush passes through the small circle round pin to be fixed on the steel bushing, the side cap is installed at the shaft both ends, and every side cap is inside to be equipped with wheel body complex oil blanket through first O type sealing washer and shaft seal fit, every side cap inboard.

2. The thrust wheel of the novel excavator according to claim 1, wherein: and second O-shaped sealing rings are arranged between the oil seals and the side covers and the wheel body respectively.

3. The thrust wheel of the novel excavator as claimed in claim 1 or 2, wherein: and the side cover is provided with a screw mounting hole.