CN216359988U

CN216359988U - Long service life's rubber track thrust wheel

Info

Publication number: CN216359988U
Application number: CN202021264341.7U
Authority: CN
Inventors: 张嘉翔; 杨俊�
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2022-04-22
Anticipated expiration: 2030-07-02

Abstract

The utility model provides a rubber track thrust wheel with long service life, which mainly comprises a wheel shell, a shaft, a hub bearing, a floating oil seal seat, a fixing screw, a plug, a clamp spring and a connecting bolt, wherein the wheel shell is provided with a plurality of rollers; the hub bearing is arranged in a hole of the wheel shell, the clamp spring is clamped on a ring groove on the inner wall of the hole of the wheel shell to position the hub bearing, one end of the floating oil seal abuts against the hub bearing, the other end of the floating oil seal is sleeved in a cavity of the floating oil seal seat, the front end of the shaft is sequentially inserted into the holes of the floating oil seal seat, the floating oil seal and the hub bearing, and the fixing screw is in threaded connection with the front end face of the shaft through the hole in the wheel shell to fix the floating oil seal seat, the floating oil seal and the hub bearing. It has the following effects: 1. the service life is long; the service life is 6 to 8 times of that of the product in the prior art by calculation; 2. the product quality is improved, and the product installation is more convenient.

Description

Long service life's rubber track thrust wheel

The technical field is as follows: the utility model relates to a thrust wheel or a tension wheel (hereinafter, the thrust wheel is generally called as a thrust wheel because the two structures are the same) used in a chassis wheel system of the similar rubber track machinery such as a rubber track harvester, a rubber track rotary cultivator and the like, in particular to a rubber track thrust wheel with long service life.

Background art: with the development of agricultural mechanization, more and more rubber track type machines are widely used, and in the use of the machines, a more prominent problem exists: the supporting wheel or the tension wheel in the chassis wheel train is easy to damage, has short service life and needs to be replaced frequently, which not only influences the normal operation of machinery, but also causes high maintenance cost, greatly increases the production cost and is unfavorable for economic units. The reason for this problem is due to the structure of the supporting roller or the tension roller. The prior track roller or tension wheel mainly comprises a wheel shell, a shaft, a single-row deep groove ball bearing and a combined rubber oil seal; the inside of the bearing is lubricated by grease. The structure has the defects that the axial bearing load of the single-row deep groove ball bearing is weak, and the machine needs to frequently turn around in operation, so that the axial bearing load has larger impact force load, and the bearing abrasion is aggravated; in addition, the inside of the bearing is lubricated by grease, the lubricating condition of the bearing is severe, so that the free gap of the bearing is easily expanded, the use technical condition of the rubber combined oil seal is that the coaxiality of the inner ring seal and the outer ring seal is high, once the gap of the bearing is too large, the seal fails, a large amount of muddy water enters the hub and aggravates the abrasion of the bearing, and finally the bearing cannot be used. It is known that the existing agricultural machines, especially in the south, are basically operated in muddy water with a severe environment, so that the problems are not difficult to be solved.

The utility model content is as follows: the utility model aims to provide a rubber track supporting wheel which has strong axial load, stable use and long service life and can effectively solve the problems aiming at the defects of the supporting wheel or the tensioning wheel in the existing rubber track type machine in use.

The rubber track thrust wheel with long service life comprises a wheel shell and a shaft and is characterized by further comprising a wheel hub bearing, a floating oil seal seat, a fixing screw, an end cap, a clamp spring and a connecting bolt; the hub bearing is arranged in a hole of the wheel shell, the clamp spring is clamped on a ring groove on the inner wall of the hole of the wheel shell to position the hub bearing, one end of the floating oil seal abuts against the hub bearing, the other end of the floating oil seal is sleeved in a cavity of the floating oil seal seat, the front end of the shaft is sequentially inserted into the holes of the floating oil seal seat, the floating oil seal and the hub bearing, a fixing screw is in screw connection with the front end face of the shaft through the hole in the wheel shell to fix the floating oil seal seat and the hub bearing, the plug is tightly attached to the fixing screw through the clamp spring and fixed in the hole of the wheel shell, and the connecting bolt is arranged on the rear end face of the shaft.

The utility model has the following effects: 1. the device has long service life, and the wheel hub bearing replaces the existing single-row deep groove ball bearing, and the floating oil seal replaces the existing combined rubber oil seal, so that the device has good axial bearing capacity, can better bear strong axial force generated by frequent turning and turning of machinery in operation, and is not easy to wear and generate gaps; in addition, the bearing is lubricated by engine oil, so that the heat dissipation condition of the bearing is greatly improved, and the floating oil seal can effectively prevent external mud and water from entering a bearing lubricating system; the changed set greatly improves the sealing performance in the wheel shell of the device, so that the service life of the device is greatly prolonged; the service life of the product is 6 to 8 times of that of the product in the prior art by calculation; 2. the product quality is improved, the product installation is more convenient, the bearing is an integral hub bearing, and the accumulated error in the product processing and manufacturing and the requirement on the skill of workers in the installation process are greatly reduced.

Description of the drawings:

FIG. 1 is a schematic diagram of a separation structure of the present invention;

FIG. 2 is a schematic cross-sectional structural view of the present invention.

The utility model is further illustrated with reference to the following figures and examples:

the specific implementation mode is as follows:

referring to the attached drawings 1 and 2, the rubber track thrust wheel with long service life mainly comprises a wheel shell 1, a shaft 2, a hub bearing 3, a floating oil seal 4, a floating oil seal seat 5, a fixing screw 6, a plug 7, a clamp spring 8, a clamp spring 9, a gasket 10 and a connecting bolt 11. The hub bearing 3 is arranged in the hole of the wheel shell 1 and is clamped on the ring groove on the inner wall of the hole of the wheel shell 1 through the clamp spring 8 to position the hub bearing. One end of the floating oil seal 4 is abutted against the hub bearing 3, and the other end is sleeved in the cavity of the floating oil seal seat 5. The front end of the shaft 2 is inserted into the holes of the floating oil seal seat 5, the floating oil seal 4 and the hub bearing 3 in sequence; wherein the shaft 2 is in interference fit with the floating oil seal seat 5, and the shaft 2 is provided with a step for positioning the floating oil seal seat 5. The fixing screw 6 is screwed with the front end face of the shaft 2 through a hole on the wheel housing 1 to fix the two. The plug 7 is tightly attached to the fixing screw 6 through the clamp spring 9 and fixed in the hole of the wheel shell 1. The connecting bolt 11 and the washer 10 are screwed to the rear end surface of the shaft 2.

Claims

1. A rubber track thrust wheel with long service life comprises a wheel shell and a shaft, and is characterized by further comprising a hub bearing, a floating oil seal seat, a fixing screw, a plug, a clamp spring and a connecting bolt; the hub bearing is arranged in a hole of the wheel shell, the clamp spring is clamped on a ring groove on the inner wall of the hole of the wheel shell to position the hub bearing, one end of the floating oil seal abuts against the hub bearing, the other end of the floating oil seal is sleeved in a cavity of the floating oil seal seat, the front end of the shaft is sequentially inserted into the holes of the floating oil seal seat, the floating oil seal and the hub bearing, a fixing screw is in screw connection with the front end face of the shaft through the hole in the wheel shell to fix the floating oil seal seat and the hub bearing, the plug is tightly attached to the fixing screw through the clamp spring and fixed in the hole of the wheel shell, and the connecting bolt is arranged on the rear end face of the shaft.