CN212447837U

CN212447837U - Thrust wheel assembly and vehicle applying same

Info

Publication number: CN212447837U
Application number: CN202021227712.4U
Authority: CN
Inventors: 姜伟健; 张光磊; 张光金; 王新光
Original assignee: Shandong Detai Machinery Group Co ltd
Current assignee: Shandong Detai Machinery Group Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-02-02
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a vehicle of thrust wheel assembly and applied this assembly relates to automobile parts technical field, including two size identical connecting cylinders, the one end fixed connection of two connecting cylinders is in the same place, and the outer end of every connecting cylinder is equipped with the flange, the connecting cylinder center is equipped with the centre bore, the outer terminal surface center of flange is equipped with subtracts the heavy groove, subtract heavy groove with the centre bore is linked together, two the connecting cylinder junction is equipped with the joint seam, every the link edge of connecting cylinder is equipped with annular spread groove, and it is protruding to be equipped with a connection in the joint seam of two connecting cylinders. The utility model discloses a friction welding fixes into the structure of a thrust wheel with the connecting cylinder, has reduced fault rate and maintenance rate, has improved thrust wheel sealing performance and life.

Description

Thrust wheel assembly and vehicle applying same

Technical Field

The utility model relates to an automobile parts technical field especially relates to a thrust wheel assembly and use vehicle of this assembly.

Background

The thrust wheel is one of four wheels and one belt of a chassis of the crawler type engineering machine, and mainly has the function of supporting the weight of the excavator and the bulldozer and enabling the crawler to advance along the wheel. The heavy wheel can be divided into a single-side thrust wheel and a double-side thrust wheel; the supporting wheel for the excavator and the supporting wheel for the bulldozer are generally black paint, and the supporting wheel for the bulldozer is generally yellow paint.

Currently, the prior heavy wheel has a plurality of problems which influence the use and the service life in the use process.

SUMMERY OF THE UTILITY MODEL

The utility model provides a thrust wheel assembly and use vehicle of this assembly.

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

a thrust wheel assembly comprises two connecting cylinders with the same size, one ends of the two connecting cylinders are fixedly connected together, a flange is arranged at the outer end of each connecting cylinder, a central hole is formed in the center of each connecting cylinder, a weight reduction groove is formed in the center of the outer end face of each flange and communicated with the central hole, a connecting seam is formed in the joint of the two connecting cylinders, an annular connecting groove is formed in the edge of the connecting end of each connecting cylinder, and a connecting bulge is arranged in the connecting seam of the two connecting cylinders.

Further, the coupling protrusion is ring-shaped.

Further, the connecting projection comprises two annular blocks, and the two annular blocks are symmetrically arranged around the connecting seam.

Furthermore, a transition bulge is arranged at the joint of the flange and the connecting cylinder.

Further, the thickness of the coupling projection is not greater than the depth of the coupling groove.

Furthermore, an oil filling hole is formed in the connecting cylinder.

A vehicle, employ the thrust wheel assembly.

Has the advantages that: the utility model discloses a friction welding fixes into the structure of a thrust wheel with the connecting cylinder, has reduced fault rate and maintenance rate, has improved thrust wheel sealing performance and life.

Drawings

Fig. 1 is a schematic structural view of an assembly of the utility model;

FIG. 2 is a schematic view showing the structure of the thrust wheel shown in FIG. 1 of the present invention

In the figure: the connecting cylinder 1, the flange 2, the transition bulge 3, the weight reduction groove 4, the central hole 5, the connecting seam 6, the connecting groove 7 and the connecting bulge 8.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the 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 indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and 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.

Example 1:

referring to fig. 1-2, a thrust wheel assembly comprises two connecting cylinders 1 with the same size, one ends of the two connecting cylinders 1 are fixedly connected together, a flange 2 is arranged at the outer end of each connecting cylinder 1, a central hole 5 is arranged at the center of each connecting cylinder 1, a weight reduction groove 4 is arranged at the center of the outer end face of each flange 2, the weight reduction grooves 4 are communicated with the central holes 5, a connecting seam 6 is arranged at the joint of the two connecting cylinders 1, an annular connecting groove 7 is arranged at the edge of the connecting end of each connecting cylinder 1, and a connecting bulge 8 is arranged in the connecting seam 6 of the two connecting cylinders 1. The connecting projection 8 is annular. The connecting projection 8 comprises two annular pieces, and the two annular pieces are symmetrically arranged about the connecting seam 6.

And a transition bulge 3 is arranged at the joint of the flange 2 and the connecting cylinder 1. The thickness of the coupling projection 8 is not greater than the depth of the coupling groove 7.

An oil filling hole is formed in the connecting cylinder 1. The oil filler point is equipped with the oil filler point stopper, opens the oil filler point stopper, can pour into lubricating oil into the oil filler point.

When in use, a wheel shaft is arranged in the central hole 5 in the connecting cylinder 1, and an O-shaped sealing ring is arranged between the connecting cylinder 1 and the wheel shaft to form primary sealing. The left end cover and the right end cover are arranged in the wheel shaft and abut against the weight reducing holes of the flange 2, and the left end cover and the right end cover are fixed with the wheel shaft through positioning pins respectively. And a bearing is arranged between the connecting cylinder 1 and the wheel shaft, and can be a tapered roller bearing, a double-row tapered roller bearing or a ball bearing. The bearings are installed in pairs in a back-to-back manner, namely: the small sections of the two bearing inner rings are oppositely arranged. When the bearing is installed in pairs back to back, the load action center is positioned outside the central line of the bearing; the span between the intersection points is large, the length of the cantilever is small, so that the rigidity of the cantilever end is large, when the shaft is heated and extended, the clearance of the bearing is increased, and the bearing cannot be locked and damaged. Floating oil seals are respectively arranged between the connecting cylinder 1 and the left end cover and between the connecting cylinder 1 and the right end cover.

The utility model discloses a bearing preloading mechanism for the bearing pretension adopts the rigidity of multiple different pretension mode adjusting bearing, makes the abundant contact of roller and raceway surface, improves the adaptability of thrust wheel to high load and high impact low-speed operating mode, thereby the best life that the bearing reached.

The pre-tightening mode comprises the following steps: the bearing pre-tightening mechanism comprises an eccentric concave nut close to the bearing and is used for pre-tightening the bearing; and an eccentric convex nut matched with the eccentric concave nut is arranged on the other side of the eccentric concave nut and used for preventing the eccentric concave nut from loosening. The pre-tightening mode can ensure that the thrust wheel has reliable pre-tightening under high impact, stabilize the pre-tightening force of the wheel shaft and achieve the purpose of prolonging the service life of the bearing. In addition, a bearing preloading mechanism can be arranged on one side of the bearing, and the bearing preloading mechanism can be arranged on the left side and the right side.

Example 2:

a vehicle employing the bogie wheel assembly described in example 1.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A thrust wheel assembly characterized by: the connecting cylinder comprises two connecting cylinders (1) with the same size, one ends of the two connecting cylinders (1) are fixedly connected together, the outer end of each connecting cylinder (1) is provided with a flange (2), the center of each connecting cylinder (1) is provided with a center hole (5), the center of the outer end face of each flange (2) is provided with a weight reduction groove (4), the weight reduction grooves (4) are communicated with the center holes (5), the joints of the two connecting cylinders (1) are provided with connecting seams (6), the edges of the connecting ends of the connecting cylinders (1) are provided with annular connecting grooves (7), and connecting bulges (8) are arranged in the connecting seams (6) of the two connecting cylinders (1).

2. A track roller assembly according to claim 1, wherein the attachment projection (8) is annular.

3. A track roller assembly according to claim 2, wherein the attachment protrusion (8) comprises two annular segments, and the two annular segments are arranged symmetrically about the attachment slot (6).

4. A track roller assembly according to claim 1, wherein the flange (2) is provided with a transition protrusion (3) at the connection with the connecting cylinder (1).

5. A bogie wheel assembly as claimed in claim 1 in which the thickness of the coupling projection (8) is no greater than the depth of the coupling groove (7).

6. A thrust wheel assembly according to claim 1, wherein the connecting cylinder (1) is provided with an oil injection hole.

7. A vehicle, characterized in that: use of a bogie wheel assembly as claimed in any one of claims 1 to 6.