CN211107757U - A detachable roller - Google Patents

Abstract

The utility model relates to a detachable thrust wheel, belonging to the technical field of thrust wheels, comprising a thrust wheel fulcrum shaft assembly, wherein the outside of the thrust wheel fulcrum shaft assembly is sleeved with a thrust wheel side cover matched with the thrust wheel fulcrum shaft assembly, the thrust wheel side cover is provided with an oiling bolt hole, and the inner wall of the thrust wheel side cover is also provided with an oil cavity through hole communicated with the oiling bolt hole; the fulcrum wheel fulcrum assembly includes a first fulcrum and a second fulcrum threadedly coupled thereto. The utility model discloses a set up oiling bolt hole and oil pocket through-hole cooperation for the thrust wheel is rotating the in-process and in time lubricating contact with lubricating oil, and is lubricated effectual, long service life, and thrust wheel counter roll assembly has two threaded connection's counter roll to constitute moreover, conveniently carries out the dismouting when breaking down, can pour into new lubricating oil into simultaneously when the dismouting, and is more practical.

Description

A detachable roller

technical field

The utility model relates to the technical field of rollers, in particular to a detachable roller.

Background technique

The track wheel is one of the four-wheel belts of the crawler-type construction machinery chassis. Its main function is to support the weight of the excavator and the bulldozer, so that the track moves along the wheels. The track wheel of the small crawler excavator is mainly composed of the wheel body. , wheel shaft, copper sleeve, floating seal ring, O-ring and end cover, etc.

During the movement of the current roller, only the support shaft and the end cover rotate (the rest do not move), and the lubricating oil in the refueling chamber will lubricate the bimetal sleeve and the sealing O-ring, which leads to the inability of the lubricating oil to rise. In order to achieve a good lubrication effect, failure to lubricate in time will lead to the occurrence of oil leakage defects, so it needs to be optimized.

Utility model content

The purpose of the present invention is to provide a detachable roller to solve the problems raised in the above background technology.

To achieve the above object, the utility model provides the following technical solutions:

A detachable support wheel, comprising a support wheel support shaft assembly, a support wheel side cover matched with the support wheel support shaft assembly is sleeved outside the support wheel side cover, and a support wheel side cover is opened on the support wheel side cover. The oil injection bolt hole is also provided with an oil cavity through hole connected with the oil injection bolt hole on the inner wall of the side cover of the roller.

As a further technical solution of the present invention, a sealing ring is installed between the side cover of the roller and the support shaft assembly of the roller.

As a further technical solution of the present invention, a sheath is also installed between the side cover of the roller and the roller support shaft assembly, and the sheath is sleeved outside the roller roller support shaft assembly.

As a further technical solution of the present invention, the roller support shaft assembly includes a first support shaft and a second support shaft that is threadedly connected thereto.

As a further technical solution of the present invention, a threaded column is fixedly installed on the first support shaft, and a threaded groove matched with the threaded column is opened on the second support shaft.

Compared with the prior art, the beneficial effect of the utility model is: by setting the oil injection bolt hole to cooperate with the oil cavity through hole, the roller can lubricate the lubricating oil in time during the rotation process, the lubricating effect is good, and the service life is long. In addition, the roller support shaft assembly is composed of two threaded support shafts, which is convenient for disassembly and assembly in the event of a failure, and at the same time, new lubricating oil can be injected during disassembly and assembly, which is more practical.

Description of drawings

Fig. 1 is a sectional view of a detachable roller;

Fig. 2 is a cross-sectional view of a roller support shaft assembly in a detachable roller.

In the picture: 1- Roller support shaft assembly, 2- Roller side cover, 3- Oil injection bolt hole, 4- Oil cavity through hole, 5- Seal ring, 6- Sheath, 7- First support shaft , 8-Second fulcrum, 9-Threaded post, 10-Threaded groove.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

Example 1

The detachable roller as shown in Figures 1 and 2 includes a roller support shaft assembly 1, and the outside of the roller support shaft assembly 1 is sleeved with a roller side cover 2 that matches it, so The roller side cover 2 is provided with an oil injection bolt hole 3, and the inner wall of the roller side cover 2 is also provided with an oil cavity through hole 4 that is communicated with the oil injection bolt hole 3, that is, by opening the oil injection bolt hole 3. The lubricating oil is injected into the interior, and then flows through the entire contact surface through the through hole 4 of the oil cavity, so that the lubricating oil in the refueling cavity can be lubricated in time during the rotation of the roller, and the lubricating oil can be timely after the lubricating oil is consumed. The lubricating oil is injected through the oil injection bolt hole, which plays the role of replenishing the lubricating oil in time. When injecting, just take out the internal bolt, and seal it after the injection is completed, which is easy to operate.

Further, a sealing ring 5 is installed between the roller side cover 2 and the roller support shaft assembly 1 to improve the sealing effect and reduce the loss of lubricating oil.

Further, a sheath 6 is also installed between the side cover 2 of the roller and the roller support shaft assembly 1, and the sheath 6 is sleeved outside the roller support shaft assembly 1, and the sheath 6 is preferably a bimetal sleeve, which can effectively prolong the life of the roller.

Example 2

This embodiment is further optimized on the basis of Embodiment 1. The roller support shaft assembly 1 includes a first support shaft 7 and a second support shaft 8 threadedly connected thereto, namely the first support shaft 7 and the second support shaft 8 The support shaft 8 is assembled in the side cover 2 of the roller by threaded fitting, so that it is convenient to assemble and disassemble when the roller fails, and when the roller support shaft assembly is removed, new lubricating oil can be injected.

Further, a threaded column 9 is fixedly installed on the first support shaft 7 , and a threaded groove 10 is formed on the second support shaft 8 to cooperate with the threaded column 9 . The screw connection of the first support shaft 7 and the second support shaft 8 .

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention may be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (5)

1. The utility model provides a removable thrust wheel, includes thrust wheel fulcrum shaft assembly (1), and the outside cover of thrust wheel fulcrum shaft assembly (1) is equipped with rather than matched with thrust wheel side cap (2), its characterized in that: an oil injection bolt hole (3) is formed in the thrust wheel side cover (2), and an oil cavity through hole (4) communicated with the oil injection bolt hole (3) is further formed in the inner wall of the thrust wheel side cover (2).

2. The removable thrust wheel of claim 1, wherein: and a sealing ring (5) is arranged between the thrust wheel side cover (2) and the thrust wheel fulcrum shaft assembly (1).

3. A detachable thrust wheel according to claim 1 or 2, wherein: a sheath (6) is further installed between the thrust wheel side cover (2) and the thrust wheel fulcrum shaft assembly (1), and the sheath (6) is sleeved outside the thrust wheel fulcrum shaft assembly (1).

4. The removable thrust wheel of claim 3, wherein: the fulcrum wheel fulcrum shaft assembly (1) comprises a first fulcrum shaft (7) and a second fulcrum shaft (8) in threaded connection with the first fulcrum shaft.

5. The removable thrust wheel of claim 4, wherein: the first fulcrum shaft (7) is fixedly provided with a threaded column (9), and the second fulcrum shaft (8) is provided with a threaded groove (10) matched with the threaded column (9).

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