CN210164724U

CN210164724U - Reinforced turning oil cylinder

Info

Publication number: CN210164724U
Application number: CN201822024604.6U
Authority: CN
Inventors: 张可丰; 赵会杰
Original assignee: Rongcheng Hongfeng Automobile Co Ltd
Current assignee: Rongcheng Hongfeng Automobile Co Ltd
Priority date: 2018-12-04
Filing date: 2018-12-04
Publication date: 2020-03-20
Anticipated expiration: 2028-12-04

Abstract

The utility model provides a strengthen upset hydro-cylinder, including hydro-cylinder joint and cylinder, the hydro-cylinder joint is connected with cylinder one end, cylinder both ends inner wall is equipped with the piston and sets up in the cylinder and along its piston rod of injecing the direction motion, its the piston rod is close to and is equipped with the stop collar on the surface of hydro-cylinder joint one end, the stop collar does not have the full tubular structure of bottom surface for both ends, stop collar internal surface and piston rod external surface fixed cooperation, the stop collar is close to hydro-cylinder joint side front end and flushes with the piston that is close to hydro-cylinder joint side, the beneficial effects of the utility model are that owing to adopt above-mentioned technical scheme, make the part of control piston rod extension length in the upset hydro-cylinder in the long-term use, can not fracture and become invalid, make the.

Description

Reinforced turning oil cylinder

Technical Field

The utility model relates to a hydraulic equipment field especially relates to auttombilism room turning device upset hydro-cylinder technical field.

Background

At present, cab turning device is at the jack-up in-process, through the flexible of pneumatic cylinder, makes the limited rotation of cab trip shaft, and for the extension length of control upset hydro-cylinder inner piston rod, the piston rod lateral wall is equipped with ring groove and steel wire retaining ring cooperation, because the steel wire retaining ring uses easy fracture for a long time, and has the problem that the steel wire retaining ring became invalid easily.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a structure for controlling the extension length of the piston rod in the turnover oil cylinder, which is not easy to break after long-term use.

The technical scheme of the utility model is that: the utility model provides a strengthen upset hydro-cylinder, includes hydro-cylinder joint and cylinder, the hydro-cylinder connects with cylinder one end corresponding connection, be hollow in the cylinder, hollow portion is cylindrical structure, and cylinder both ends inner wall is equipped with the piston and sets up the piston rod of the direction motion in the cylinder and follow its injecture, and cylinder central line direction straight line seesaw can be followed to the piston rod, the piston rod is equipped with the stop collar on being close to the surface of hydro-cylinder joint one end.

The stop collar is the full tubular structure of both ends no bottom surface.

The inner surface of the limiting sleeve is fixedly matched with the outer surface of the piston rod, when the piston rod moves back and forth, the limiting sleeve and the piston rod move correspondingly, the front end of the limiting sleeve, which is close to the side of the oil cylinder joint, is flush with the surface of the piston, which is close to the side of the oil cylinder joint, of the limiting sleeve, when the piston rod moves towards the end far away from the end of the oil cylinder joint, the limiting sleeve on the piston rod contacts with the piston arranged on the inner wall of the cylinder barrel, which is far away from the.

The ratio of the inner diameter of the cross section of the limiting sleeve to the outer diameter of the cross section of the limiting sleeve is 25: 32-40.

The outer diameter of the cross section of the limiting sleeve is 4 in length ratio to the limiting sleeve: 5-6.

The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the part for controlling the extension length of the piston rod in the turnover oil cylinder cannot be broken or lost in long-term use, so that the service life of the turnover oil cylinder is longer.

Drawings

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

FIG. 2 is a schematic view of the present invention showing a part enlarged

FIG. 3 is a front cross-sectional view of the stop collar

FIG. 4 is a top view of the stop collar

In the figure:

1. oil cylinder joint 2, cylinder barrel 3 and piston

4. Piston rod 5 and limiting sleeve

Detailed Description

As shown in fig. 1-4, the utility model relates to a strengthen upset hydro-cylinder, including hydro-cylinder joint 1 and cylinder 2, hydro-cylinder joint 1 is connected with 2 one ends of cylinder, 2 both ends inner walls of cylinder are equipped with piston 3 and set up in cylinder 2 and along the piston rod 4 of its direction motion of injecing, piston rod 4 is equipped with stop collar 5 on being close to the surface of hydro-cylinder joint 1 one end.

The limiting sleeve 5 is of a full-cylindrical structure with two ends without bottom surfaces.

The inner surface of the limiting sleeve 5 is fixedly matched with the outer surface of the piston rod 4, and the front end of the side, close to the oil cylinder joint 1, of the limiting sleeve 5 is flush with the piston close to the oil cylinder joint.

The ratio of the inner diameter of the cross section of the limiting sleeve 5 to the outer diameter of the cross section of the limiting sleeve 5 is 25: 32.

the ratio of the outer diameter of the cross section of the limiting sleeve 5 to the length of the limiting sleeve is 4: 5.

while one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a strengthen upset hydro-cylinder, includes hydro-cylinder joint (1) and cylinder (2), hydro-cylinder joint (1) is connected with cylinder (2) one end, cylinder (2) both ends inner wall is equipped with piston (3) and sets up piston rod (4) in cylinder (2) and along its direction motion of injecing, its characterized in that: and a limiting sleeve (5) is arranged on the outer surface of one end of the piston rod (4) close to the oil cylinder joint (1).

2. The reinforced overturning oil cylinder as claimed in claim 1, wherein: the limiting sleeve (5) is of a full-cylindrical structure with two ends without bottom surfaces.

3. The reinforced tipping cylinder of claim 1 or 2, wherein: the inner surface of the limiting sleeve (5) is fixedly matched with the outer surface of the piston rod (4), and the front end of the limiting sleeve (5) close to the side of the oil cylinder connector (1) is flush with the piston close to the side of the oil cylinder connector.

4. A reinforced tilt cylinder as claimed in claim 3, wherein: the ratio of the inner diameter of the cross section of the limiting sleeve (5) to the outer diameter of the cross section of the limiting sleeve (5) is 25: 32-40.

5. A reinforced tilt cylinder as claimed in claim 3, wherein: the outer diameter of the cross section of the limiting sleeve (5) is 4: 5-6.