CN203497049U

CN203497049U - Supporting roller of excavator

Info

Publication number: CN203497049U
Application number: CN201320243993.6U
Authority: CN
Inventors: 余冬生; 郭华斌; 潘书楠
Original assignee: Zhejiang Fangzhou Engineering Machinery Equipment Co Ltd
Current assignee: Zhejiang Fangzhou Engineering Machinery Equipment Co Ltd
Priority date: 2013-05-08
Filing date: 2013-05-08
Publication date: 2014-03-26
Anticipated expiration: 2023-05-08

Abstract

The utility model discloses a supporting roller of an excavator. The supporting roller comprises a supporting roller body, wherein the roller body is arranged on a supporting roller shaft and consists of a bottom roll and two outer sleeves, the bottom roll is provided with a center through hole which is matched with the supporting roller shaft, the axial middle part of the bottom roll protrudes outwards, and respectively forms a step surface with the two end parts of the bottom roll, the two end parts of the bottom roll are respectively and fixedly provided with a retaining plate, the two outer sleeves are respectively sheathed at the two end parts of the bottom roll, and the two axial ends of the outer sleeves are respectively and fixedly abutted against the step surfaces and the retaining plates of the bottom roll. Compared with the prior art, the supporting roller has the advantages that the self cost of the supporting roller body is greatly reduced; meanwhile, a track generally generates friction with the two ends of the supporting roller body, so only the two outer sleeves need to be actually replaced and maintained after use, the original unable restoration is changed into the maintenanceability, the use cost is greatly reduced, and the supporting roller is favorable for the use and subsequent maintenance of a user.

Description

A kind of thrust wheel of digging machine

Technical field

The utility model relates to a kind of caterpillar wheel, is specifically related to a kind of thrust wheel of digging machine.

Background technology

At present, existing thrust wheel of digging machine is generally the integral structure of being made by 40Mn2 material as shown in Figure 1, is provided with the central through hole coordinating with described wheel shaft in it, on its outer circumference surface, is connected with crawler belt.While walking due to excavating machine, crawler belt on it is by continuous and caterpillar wheel friction, therefore after using, described caterpillar wheel will be worn, but existing caterpillar wheel is owing to being the integral structure of being made by 40Mn2 material, itself cost is just comparatively expensive, and conventionally can only integral replacing after wearing and tearing, cannot repair, therefore cause use cost significantly to increase.

Summary of the invention

For the deficiencies in the prior art, the utility model provides the thrust wheel of digging machine that a kind of use cost is low and be convenient to keep in repair.

For achieving the above object, the utility model provides a kind of thrust wheel of digging machine, comprise the caterpillar wheel body being installed on a wheel shaft, the overcoat that the bottom roller that described caterpillar wheel body is made by one No. 45 Steel materials and two 40Mn2 materials are made constitutes, described bottom roller is provided with the central through hole coordinating with described wheel shaft, the axial middle part outwardly convex of described bottom roller, and and the end, two ends of described bottom roller between form respectively step surface, on the end, two ends of described bottom roller, be also fixed with respectively a baffle plate, two described overcoats are set with on the end, two ends of described bottom roller, and the axial two ends of described overcoat respectively with described bottom roller on step surface, baffle plate connects fixing.

The beneficial effects of the utility model are: adopt said structure, because the caterpillar wheel body described in the utility model is that the overcoat that the bottom roller made by one No. 45 Steel materials and two 40Mn2 materials are made constitutes, the caterpillar wheel of the integral structure of therefore being made by 40Mn2 material compared to existing technology, itself cost is reduced greatly.Because crawler belt is general, only rub with the two ends of caterpillar wheel body simultaneously, therefore adopt caterpillar wheel body provided by the utility model, actual two overcoats that only have that need repair and replacement after using, such structure setting compared to existing technology, not only original unrepairable is transformed into and can be keeped in repair, and significantly reduce use cost, be conducive to user's use and later period maintenance.

The end, outer end that the utility model can further be set to described overcoat stretches out and is provided with an extension block, and the inner end face of described extension block is dip plane.Adopt said structure, outside described, put and set up extension block, and the inner end face of described extension block is arranged to dip plane, can effectively avoid crawler belt to put and skid off from outward, make its connection each other more reliable.

The utility model also can further be set to by snap ring, fix between the axial inner ends of described baffle plate and bottom roller, is also provided with the soldering opening that can be welded and fixed with described bottom roller in the axial outer end of described baffle plate.Adopt said structure, between described baffle plate and bottom roller, not only by snap ring, fix, also set up soldering opening, such structure setting can effectively be guaranteed firmly to link together between described baffle plate and bottom roller.

Accompanying drawing explanation

Fig. 1 is the structural representation of prior art;

Fig. 2 is structural representation of the present utility model.

The specific embodiment

Provided as shown in Figure 2 a kind of thrust wheel of digging machine, comprise the caterpillar wheel body being installed on a wheel shaft, the overcoat 2 that the bottom roller 1 that described caterpillar wheel body is made by one No. 45 Steel materials and two 40Mn2 materials are made constitutes, described bottom roller 1 is provided with the central through hole 11 coordinating with described wheel shaft, axial middle part 12 outwardly convexs of described bottom roller 1, and and the end, two ends 13 of described bottom roller 1 between form respectively step surface 14, on the end, two ends 13 of described bottom roller 1, be also fixed with respectively a baffle plate 3, fixing by snap ring 4 between the axial inner ends of described baffle plate 3 and bottom roller 1, in the axial outer end of described baffle plate 3, be also provided with the soldering opening 31 that can be welded and fixed with described bottom roller 1.Two described overcoats 2 are set with on the end, two ends 13 of described bottom roller 1, and the axial two ends of described overcoat 2 respectively with described bottom roller 1 on step surface 14, baffle plate 3 connect fixing, the end, outer end of described overcoat 2 stretches out and is provided with an extension block 21, and the inner end face 211 of described extension block 21 is dip plane.

Adopt said structure, because the caterpillar wheel body described in the utility model is that the overcoat 2 that the bottom roller 1 made by one No. 45 Steel materials and two 40Mn2 materials are made constitutes, the caterpillar wheel of the integral structure of therefore being made by 40Mn2 material compared to existing technology, itself cost is reduced greatly.Because crawler belt is general, only rub with the two ends of caterpillar wheel body simultaneously, therefore adopt caterpillar wheel body provided by the utility model, actual two overcoats 2 that only have that need repair and replacement after using, such structure setting compared to existing technology, not only original unrepairable is transformed into and can be keeped in repair, and significantly reduce use cost, be conducive to user's use and later period maintenance.

Claims

1. a thrust wheel of digging machine, comprise the caterpillar wheel body being installed on a wheel shaft, it is characterized in that: the overcoat that the bottom roller that described caterpillar wheel body is made by one No. 45 Steel materials and two 40Mn2 materials are made constitutes, described bottom roller is provided with the central through hole coordinating with described wheel shaft, the axial middle part outwardly convex of described bottom roller, and and the end, two ends of described bottom roller between form respectively step surface, on the end, two ends of described bottom roller, be also fixed with respectively a baffle plate, two described overcoats are set with on the end, two ends of described bottom roller, and the axial two ends of described overcoat respectively with described bottom roller on step surface, baffle plate connects fixing.

2. a kind of thrust wheel of digging machine according to claim 1, it is characterized in that: the end, outer end of described overcoat stretches out and is provided with an extension block, and the inner end face of described extension block is dip plane.

3. a kind of thrust wheel of digging machine according to claim 1, is characterized in that: between the axial inner ends of described baffle plate and bottom roller, by snap ring, fix, be also provided with the soldering opening that can be welded and fixed with described bottom roller in the axial outer end of described baffle plate.