CN203614508U

CN203614508U - Aligning type inversion multistage hydraulic cylinder

Info

Publication number: CN203614508U
Application number: CN201320852907.1U
Authority: CN
Inventors: 田垒
Original assignee: SHANDONG XINGTIAN MACHINERY Co Ltd
Current assignee: SHANDONG XINGTIAN MACHINERY Co Ltd
Priority date: 2013-12-23
Filing date: 2013-12-23
Publication date: 2014-05-28
Anticipated expiration: 2023-12-23

Abstract

Provided is an aligning type inversion multistage hydraulic cylinder. The cylinder comprises a cylinder tube, an upper hinged shaft and a lower hinged shaft, and is characterized in that a back-up ring is arranged on the lower part of the cylinder tube; a buffer rubber ring is arranged in the back-up ring; a ball seat is arranged under the buffer rubber ring; a hinged shaft is installed on the ball seat; the contact face between the upper hinged shaft and the ball seat is in the shape of a spherical surface ; the upper hinged shaft is in spherical surface contact with the ball seat; the upper hinged shaft is capable of up-down swinging for 5 degrees; and the lower hinged shaft is connected to an oil cylinder piston rod. Compared with the prior art, the beneficial effects of the cylinder are that by arranging the upper hinged shaft on the lower part of the cylinder tube, a protective cover and cost are saved; upper and lower hinged shaft linkage is adopted, so installing distance is shortened; and after being combined with the buffer ring and the ball seat, the upper hinged shaft also has an aligning function; torque on an oil cylinder generated by unbalance loading of a container can be prevented; and stability of the cylinder is enhanced.

Description

A kind of self-aligning is inverted multistage hydraulic cylinder

Technical field

The utility model belongs to hydraulic equipment technical field, relates in particular to a kind of self-aligning and is inverted multistage hydraulic cylinder.

Background technique

Existing front-located mode dump truck lifting hydraulic cylinder is generally FC formula or FE formula, FC connecting mode is upper and lower hinged, its upper quadrature axis is placed on above guard shield, oil cylinder has increased the weight of guard shield, has increased cost, and FE formula is that earrings connects with compartment, be that hinge connects with vehicle chassis, although this structure does not have outer cover, and distance is installed, poor stability.

Summary of the invention

The object of model utility is high in order to solve in prior art dumping car prepad fluid cylinder pressure manufacture cost, and the problems such as poor stability provide a kind of self-aligning to be inverted multistage hydraulic cylinder.

The utility model is achieved through the following technical solutions: a kind of self-aligning is inverted multistage hydraulic cylinder, comprise cylinder barrel, upper hinge, down hinge, it is characterized in that: described cylinder barrel bottom is provided with back-up ring, in back-up ring, be provided with rubber buffer ring, be provided with ball seat below rubber buffer ring, above ball seat, install hinge, the surface of contact of upper hinge and ball seat is sphere, upper hinge and ball seat are sphere-contact, can swing up and down 5 °, and described down hinge is connected on cylinder piston rod.

Compared with prior art, the beneficial effects of the utility model are: by upper hinge is placed into cylinder barrel bottom, save guard shield and saved cost, the same above down hinge that adopts connects, shorten mounting distance, same after upper hinge and buffer ring, ball seat combination have an aligning function, can avoid container unbalance loading to produce moment of torsion to oil cylinder, improved the stability of product.

Accompanying drawing explanation

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Accompanying drawing is structural representation of the present utility model.

In figure: 1, cylinder barrel; 2, back-up ring; 3, rubber buffer ring; 4, upper hinge; 5, ball seat; 6, down hinge.

Embodiment

A kind of self-aligning is as shown in the figure inverted multistage hydraulic cylinder, comprise cylinder barrel 1, upper hinge 4, down hinge 6, described cylinder barrel 1 bottom is provided with back-up ring 2, in back-up ring 2, be provided with rubber buffer ring 3, rubber buffer ring 3 is provided with ball seat 5 below, and ball seat 5 is installed hinge 4 above, upper hinge 4 is sphere with the surface of contact of ball seat 5, upper hinge 4 is sphere-contact with ball seat 5, can swing up and down 5 °, and described down hinge 6 is connected on cylinder piston rod.

First ball seat 5 is welded on cylinder barrel man-hour adding, then upper hinge 4 is placed on ball seat, upper hinge 4 and ball seat 5 surface of contact are spheres, so just increase the degrees of freedom of upper hinge 4, be beneficial to adjusting angle, again rubber buffer ring 3 and back-up ring 2 are put well successively, withstand back-up ring 2 by frock, compress rubber buffer ring 3, after completing, back-up ring 2 is welded on cylinder barrel 1, hinge 4 is clipped between ball seat 5 and rubber buffer ring 3, down hinge 6 is as fulcrum, upper hinge 4 can play the effect of adjusting angle and buffering, has improved the stability of dumping car work.

Claims

1. a self-aligning is inverted multistage hydraulic cylinder, comprise cylinder barrel, upper hinge, down hinge, it is characterized in that: described cylinder barrel bottom is provided with back-up ring, in back-up ring, be provided with rubber buffer ring, be provided with ball seat below rubber buffer ring, above ball seat, install hinge, the surface of contact of upper hinge and ball seat is sphere, upper hinge and ball seat are sphere-contact, can swing up and down 5 °, and described down hinge is connected on cylinder piston rod.