CN210484591U - Novel wear-resisting oil cylinder piston rod structure - Google Patents

Abstract

The utility model discloses a novel wear-resisting hydro-cylinder piston rod structure relates to the piston rod field, influences the problem in the life-span of hydro-cylinder to current piston rod, now proposes following scheme, and it includes the piston rod body, the first step of one end fixedly connected with of piston rod body, one side welding that the piston rod body was kept away from to first step has the second step, the side welding that first step was kept away from to the second step has the cylinder liner. The utility model discloses, through mutually supporting of many steps face, can effectually prevent that the welding slag remains, improve the leakproofness between piston rod body and the cylinder liner, solve the poor problem of leakproofness, the welding slag gets into the inside of cylinder liner when avoiding welding simultaneously, has prolonged the life of hydro-cylinder.

Description

Novel wear-resisting oil cylinder piston rod structure

Technical Field

The utility model relates to a piston rod field especially relates to a novel wear-resisting hydro-cylinder piston rod structure.

Background

The oil cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). The existing oil cylinder piston rod is only provided with a single step in design, so that the welding sealing performance of the existing oil cylinder piston rod is poor, welding slag easily enters a cylinder sleeve during welding, the service life of the oil cylinder is influenced, and therefore a novel wear-resistant oil cylinder piston rod structure is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel wear-resistant oil cylinder piston rod structure.

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

the utility model provides a novel wear-resisting hydro-cylinder piston rod structure, includes the piston rod body, the first step of one end fixedly connected with of piston rod body, one side welding that the piston rod body was kept away from to first step has the second step, the side welding that the first step was kept away from to the second step has the cylinder liner.

Preferably, the first step and the second step are both made of metal materials, and the length of the second step is larger than that of the first step.

Preferably, the cylinder sleeve is of a plane structure close to the outer wall of the second step.

Preferably, one end of the piston rod body, which is far away from the first step, is fixed with the oil cylinder.

The utility model has the advantages that: the utility model discloses in, through mutually supporting of many step faces, can effectually prevent that the welding slag remains, improved the leakproofness between piston rod body and the cylinder liner, solved the poor problem of leakproofness, the welding slag gets into the inside of cylinder liner when avoiding welding simultaneously, has prolonged the life of hydro-cylinder, simple structure, and reasonable in design can satisfy user's demand, is fit for promoting.

Drawings

FIG. 1 is a schematic structural diagram of the present invention

Fig. 2 is a schematic diagram of a prior art structure.

Reference numbers in the figures: 1 a piston rod body, 2 a first step, 3 a second step and 4 a cylinder sleeve.

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.

Referring to fig. 1-2, a novel wear-resistant oil cylinder piston rod structure comprises a piston rod body 1, wherein a first step 2 is fixedly connected to one end of the piston rod body 1, a second step 3 is welded to one side, away from the piston rod body 1, of the first step 2, and a cylinder sleeve 4 is welded to the side, away from the first step 2, of the second step 3.

First step 2 and second step 3 all adopt the metal material to make, and the length of second step 3 is greater than the length of first step 2, and the outer wall that cylinder liner 4 is close to second step 3 is planar structure, and the one end that first step 2 was kept away from to piston rod body 1 is fixed mutually with the hydro-cylinder.

The working principle is as follows: during the use, the one end of keeping away from first step 2 with piston rod body 1 is fixed mutually with the hydro-cylinder, the first step 2 of one end fixedly connected with of piston rod body 1, the welding of one side that piston rod body 1 was kept away from to first step 2 has second step 3, and first step 2 and second step 3 all adopt the metal material to make, the wearability is good, the leakproofness between piston rod body 1 and the cylinder liner 4 has been improved, the poor problem of leakproofness has been solved, the welding slag gets into the inside of cylinder liner when avoiding welding simultaneously, the life of hydro-cylinder has been prolonged, through mutually supporting of many step faces, can effectually prevent the welding slag surplus.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 to simplify the description, but do not indicate or imply that the device or element 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.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

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 (4)

1. The utility model provides a novel wear-resisting hydro-cylinder piston rod structure, includes piston rod body (1), its characterized in that, the first step of one end fixedly connected with (2) of piston rod body (1), one side welding that piston rod body (1) was kept away from in first step (2) has second step (3), the side welding that first step (2) was kept away from in second step (3) has cylinder liner (4).

2. The novel wear-resistant oil cylinder piston rod structure as claimed in claim 1, wherein the first step (2) and the second step (3) are both made of metal, and the length of the second step (3) is greater than that of the first step (2).

3. The novel wear-resistant oil cylinder piston rod structure is characterized in that the outer wall, close to the second step (3), of the cylinder sleeve (4) is of a plane structure.

4. The novel wear-resistant oil cylinder piston rod structure is characterized in that one end, far away from the first step (2), of the piston rod body (1) is fixed with an oil cylinder.

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