CN-224225174-U - Double-end supporting device for travelling wheels

Abstract

The utility model relates to the technical field of tracks of excavating machines, in particular to a double-end supporting device for travelling wheels. The utility model comprises a rigid suspension arranged along the front-back direction, a track encircling the rigid suspension along the front-back direction, a driving wheel rotationally arranged at the front end of the rigid suspension and driving the track to move along the front-back direction, a guide wheel rotationally arranged at the rear end of the rigid suspension and guiding the track to move along the front-back direction, a plurality of travelling wheels which are arranged on the rigid suspension along the front-back direction at intervals and are used for supporting the middle section of the track, and a plurality of thrust wheels which are arranged under the rigid suspension along the front-back direction at intervals, wherein the support assembly comprises a plurality of groups of support assemblies which are arranged on the travelling wheels corresponding to the travelling wheels one by one and are used for supporting the two ends of the travelling wheels. The device aims to reduce the occurrence of the condition that a traveling wheel in a crawler excavator is easy to break.

Inventors

• ZHENG GUIYONG

Assignees

• 福清市中旭机械配件有限公司

Dates

Publication Date

20260512

Application Date

20250729

Claims (2)

1. 1. The double-end walking wheel supporting device comprises a rigid suspension frame (1) arranged along the front-back direction, a crawler belt (2) surrounding the rigid suspension frame (1) along the front-back direction, a driving wheel (3) rotationally arranged at the front end of the rigid suspension frame (1) and driving the crawler belt (2) to move along the front-back direction, a guide wheel (4) rotationally arranged at the rear end of the rigid suspension frame (1) and guiding the crawler belt (2) to move along the front-back direction, a plurality of walking wheels (5) arranged on the rigid suspension frame (1) at intervals along the front-back direction and used for supporting the middle section of the crawler belt (2) and a plurality of thrust wheels (6) arranged under the rigid suspension frame (1) at intervals along the front-back direction, and is characterized by comprising a plurality of groups of supporting components (7) which are arranged on the walking wheels (5) in one-to-one correspondence with each walking wheel (5) and used for supporting two ends of the corresponding walking wheel (5); Each group of supporting components (7) comprises a fixed seat (71) which is arranged below the corresponding travelling wheel (5) and fixedly connected with the upper side of the rigid suspension (1), an empty avoidance groove (72) which is arranged on the fixed seat (71) and corresponds to the middle section of the travelling wheel (5), a pair of connecting shafts (73) which are respectively fixedly arranged at the left end and the right end of the travelling wheel (5) along the axial direction of the travelling wheel (5), two supporting pieces (74) which are rotatably sleeved on the corresponding connecting shafts (73) in a one-to-one correspondence manner with the connecting shafts (73), and two mounting sub-components (75) which are in one-to-one correspondence with the supporting pieces (74) and are used for detachably connecting the corresponding supporting pieces (74) with the fixed seat (71).
2. 2. The double-end walking wheel supporting device according to claim 1, wherein each group of the installation sub-assemblies (75) comprises a pair of fastening screws (751) which are respectively arranged on the front side and the rear side of the corresponding connecting shaft (73) of the supporting piece (74) and are arranged along the up-down direction, two threaded connecting holes (752) which are respectively arranged on the fixing base (71) in a one-to-one correspondence manner with the fastening screws (751), and two gaskets (753) which are respectively sheathed on the lower sides of the screw heads of the corresponding fastening screws (751) in a one-to-one correspondence manner with the fastening screws (751).

Description

Double-end supporting device for travelling wheels Technical Field The utility model relates to the technical field of tracks of excavating machines, in particular to a double-end supporting device for travelling wheels. Background The excavator is generally divided into a crawler excavator and a wheel type excavator, the ground area of the crawler excavator is large, so that the excavator is safer in places which are muddy, wet land and the like and easy to sink into, the excavator is wider in places which the excavator can go because the self weight of the excavator is large, in addition, the crawler excavator is a metal product and can be used in places with severe mining or working conditions, the cross-country capability is strong, but the existing crawler excavator has the following problems in the actual working process: When construction is carried out in places with poor urban construction foundation such as africa abroad, as the road going to the construction site is mostly a muddy and tortuous road with long distance, the condition of a plate vehicle for carrying the excavator is not provided, the same wheel excavator cannot travel on the road, so that the crawler excavator can only travel for tens of kilometers to the construction site, but the middle section of the crawler excavator is used for preventing sagging of the crawler and falling of the crawler during traveling and reducing the travelling wheels vibrating up and down at present, most of the travelling wheels are unilaterally supported and fixed, when the crawler is self-tightened when passing over a rugged road section, the lower pressure is applied to the travelling wheels, the free ends of the travelling wheels are excessively loaded by the lower pressure of the crawler in the process of traveling the rugged road section for a long time, the connecting shafts of the travelling wheels are easily broken, the whole travelling wheels are required to be replaced when the machine is stopped, the construction period is delayed, and the construction cost is greatly increased. Disclosure of utility model In order to solve the above problems, an object of the present utility model is to provide a double-end supporting device for traveling wheels, which is capable of reducing the occurrence of the problem that the traveling wheels are easy to break in a crawler excavator. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The double-end supporting device for the travelling wheels comprises a rigid suspension arranged along the front-back direction, a track surrounding the rigid suspension along the front-back direction, a driving wheel rotationally arranged at the front end of the rigid suspension and driving the track to move along the front-back direction, a guide wheel rotationally arranged at the rear end of the rigid suspension and guiding the track to move along the front-back direction, a plurality of travelling wheels which are arranged on the rigid suspension at intervals along the front-back direction and used for supporting the middle section of the track, and a plurality of supporting wheels which are arranged under the rigid suspension at intervals along the front-back direction, wherein the supporting wheels comprise a plurality of groups of supporting components which are arranged on the corresponding travelling wheels in a one-to-one correspondence manner and used for supporting the two ends of the corresponding travelling wheels; Each group of supporting components comprises a fixed seat, a clearance groove, a pair of connecting shafts, two supporting pieces and two mounting sub-components, wherein the fixed seat is arranged below the corresponding travelling wheel and fixedly connected with the upper side of the rigid suspension, the clearance groove is arranged on the fixed seat and corresponds to the middle section of the travelling wheel, the connecting shafts are respectively fixedly arranged at the left end and the right end of the travelling wheel along the axis direction of the travelling wheel, the two supporting pieces are rotatably sleeved on the corresponding connecting shafts in one-to-one correspondence with the connecting shafts, and the two mounting sub-components are in one-to-one correspondence with the supporting pieces and are used for detachably connecting the corresponding supporting pieces with the fixed seat. More preferably, each group of mounting subassemblies comprises a pair of fastening screws which are respectively arranged at the front side and the rear side of the corresponding connecting shaft of the supporting piece and are arranged along the up-down direction, two threaded connecting holes which are respectively arranged on the fixing base in a one-to-one correspondence manner with the fastening screws, and two gaskets which are respectively sheathed at the lower sides of the corresponding fastening screw heads in a one-to-one correspondenc