CN210829967U

CN210829967U - Pitching oil cylinder

Info

Publication number: CN210829967U
Application number: CN201921888424.0U
Authority: CN
Inventors: 汤兆俊; 王京
Original assignee: Jaingsu Sanhua Hydraulic Equipment Co ltd
Current assignee: Jaingsu Sanhua Hydraulic Equipment Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-06-23
Anticipated expiration: 2029-11-05

Abstract

The utility model relates to a every single move hydro-cylinder. The oil cylinder comprises an ear ring, a piston rod, a gland, a gasket, a front end cover, a cylinder flange, a cylinder, a buffer plunger, a stroke spacer bush, a first piston, a guide ring, a second piston and a rear end cover; the stroke spacer sleeve is arranged between the inner side of the cylinder barrel and the piston rod and is arranged along the outer diameter of the piston rod, the front end of the stroke spacer sleeve is provided with a buffer plunger, the buffer plunger is arranged along the outer diameter of the piston rod, a support ring is arranged between the stroke spacer sleeve and the inner side of the cylinder barrel, the inner wall of the cylinder barrel is provided with a guide ring, and the front end and the rear end of the guide ring are respectively provided with a hole which is sealed by a V-shaped seal ring. The utility model discloses compact structure, set up multiple sealed, sealed effectual, job stabilization prevents to draw the jar, increases stroke spacer and supporting ring in the cylinder body, and its main function is the direction length that increases the piston, has increased the direction at the in-process of action like this and has striden the point apart from, has avoided the phenomenon of drawing the jar to take place.

Description

Pitching oil cylinder

Technical Field

The utility model relates to a pneumatic cylinder especially relates to a every single move hydro-cylinder.

Background

The pitching oil cylinder is a pitching oil cylinder of a stacker-reclaimer, is one kind of hydraulic cylinder, is mainly applied to raw material taking and conveying equipment of a coking plant, is installed in an upward inclined mode, and is provided with two pitching oil cylinders.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a every single move hydro-cylinder to solve the not enough that has now the problem.

The technical scheme of the utility model is that: a pitching oil cylinder comprises an earring, a piston rod, a gland, a gasket, a front end cover, a cylinder barrel flange, a cylinder barrel, a buffer plunger, a stroke spacer bush, a piston I, a guide ring, a piston II and a rear end cover;

the ear rings are respectively arranged at two ends of the oil cylinder, the piston rod is arranged between the front ear ring and the rear ear ring, and the ear rings are provided with joint bearings and check rings;

the gland is arranged on the outer side of the piston rod, a bush is arranged at the contact part of the piston rod and the gland, the bush is arranged along the outer diameter of the piston rod, and a dustproof ring is arranged in a gap between the piston rod and the gland;

the front end cover is fixedly connected with the gland through an inner hexagon screw and an elastic gasket, a V-shaped sealing ring and a steckel sealing ring for a shaft are arranged between the front end cover and the piston rod, the V-shaped sealing ring for the shaft is arranged along the outer diameter of the piston rod, a gasket is arranged between the gland and the V-shaped sealing ring for the shaft, and the gasket is arranged outside the piston rod;

the front end and the rear end of the cylinder barrel are respectively and fixedly connected with the front end cover and the rear end cover through cylinder barrel flanges, the cylinder barrel flanges are respectively and fixedly connected with the front end cover and the rear end cover through screws and elastic cushions, and the inner sides of the two ends of the cylinder barrel are respectively provided with an O-shaped ring and a check ring for sealing;

the cylinder barrel is characterized in that a stroke spacer sleeve is arranged between the inner side of the cylinder barrel and the piston rod, the stroke spacer sleeve is arranged along the outer diameter of the piston rod, a buffer plunger is arranged at the front end of the stroke spacer sleeve, the buffer plunger is arranged along the outer diameter of the piston rod, a support ring is arranged between the stroke spacer sleeve and the inner side of the cylinder barrel, a first piston is arranged at the rear end of the stroke spacer sleeve, a second piston is arranged at the rear portion of the first piston, the first piston is arranged at the outer side of the piston rod, the first piston, the second piston and the piston rod are respectively sealed by O-shaped rings and check rings, a guide ring is arranged on the inner wall of the cylinder barrel, and holes are respectively arranged at the front end.

The utility model has the advantages that: the cylinder is prevented from being pulled, the stroke spacer sleeve and the supporting ring are additionally arranged in the cylinder body, and the main function of the cylinder is to increase the guide length of the piston, so that the guide span point distance is increased in the action process, and the phenomenon of cylinder pulling is avoided.

Drawings

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

Fig. 2 is an enlarged schematic view at a in fig. 1.

Fig. 3 is an enlarged schematic view at B in fig. 1.

In the figure, 1 is an ear ring, 2 is a piston rod, 3 is a gland, 4 is a gasket, 5 is a front end cover, 6 is a cylinder flange, 7 is a cylinder, 8 is a buffer plunger, 9 is a stroke spacer, 10 is a piston I, 11 is a guide ring, 12 is a piston II, 13 is a rear end cover, 14 is a joint bearing, 15 is a retainer ring, 16 is a dust ring, 17 is an inner hexagon screw, 18 is an elastic cushion, 19 is a bush, 20 is a shaft V-shaped sealing ring, 21 is a steckel sealing ring, 22 is an O-shaped ring, 23 is a support ring, and 24 is a hole V-shaped sealing ring.

Detailed Description

A pitching oil cylinder comprises an earring 1, a piston rod 2, a gland 3, a gasket 4, a front end cover 5, a cylinder barrel flange 6, a cylinder barrel 7, a buffer plunger 8, a stroke spacer 9, a first piston 10, a guide ring 11, a second piston 12 and a rear end cover 13;

the earrings 1 are respectively arranged at two ends of the oil cylinder, the piston rod 2 is arranged between the front earring 1 and the rear earring 1, and the earrings 1 are provided with knuckle bearings 14 and check rings 15;

the gland 3 is arranged on the outer side of the piston rod 2, a bushing 19 is arranged at the contact part of the piston rod 2 and the gland 3, the bushing 19 is arranged along the outer diameter of the piston rod 2, and a dust ring 16 is arranged in a gap between the piston rod 2 and the gland 3, so that more wet dust is easy to enter the piston under a working environment, and the dust ring 16 is arranged between the piston rod 2 and the gland 3 to prevent the dust from entering the oil cylinder body;

the front end cover 5 is fixedly connected with the gland 3 through an inner hexagon screw 17 and an elastic gasket 18, a V-shaped sealing ring 20 for a shaft and a steckel sealing ring 21 are arranged between the front end cover 5 and the piston rod 2, the V-shaped sealing ring 20 for the shaft is arranged along the outer diameter of the piston rod 2, a gasket 4 is arranged between the gland 3 and the V-shaped sealing ring 20 for the shaft, and the gasket 4 is arranged on the outer side of the piston rod 2;

the front end and the rear end of the cylinder barrel 7 are respectively and fixedly connected with the front end cover 5 and the rear end cover 13 through cylinder barrel flanges 6, the cylinder barrel flanges 6 are respectively and fixedly connected with the front end cover 5 and the rear end cover 13 through screws 17 and elastic cushions 18, and the inner sides of the two ends of the cylinder barrel 7 are respectively provided with an O-shaped ring 22 and a check ring 15 for sealing;

a stroke spacer 9 is arranged between the inner side of the cylinder barrel 7 and the piston rod 2, the stroke spacer 9 is arranged along the outer diameter of the piston rod 2, a buffer plunger 8 is arranged at the front end of the stroke spacer 9, the buffer plunger 8 is arranged along the outer diameter of the piston rod 2, a support ring 23 is arranged between the stroke spacer 9 and the inner side of the cylinder barrel 7, a first piston 10 is arranged at the rear end of the stroke spacer 9, a second piston 12 is arranged at the rear part of the first piston 10, the first piston 10 is arranged at the outer side of the piston rod 2, the first piston 10, the second piston 12 and the piston rod 2 are respectively sealed by an O-shaped ring 22 and a check ring 15, a guide ring 11 is arranged on the inner wall of the cylinder barrel 7, holes are respectively arranged at the front end and the rear end of the guide ring 11 and are sealed by a V-shaped seal ring 24, the guide ring 11 is made of PFC-2 material with lower, the friction of the guide ring 11 can be effectively reduced.

Because the hydro-cylinder of this application belongs to long stroke hydraulic cylinder, simultaneously because the direction condition of mounting means and load, probably make the guide ring of piston rod receive too big yawing force and lead to serious wear, consequently, be equipped with stroke spacer 9 between 7 inboards of cylinder and piston rod 2 in this application, stroke spacer 9 set up along 2 external diameters of piston rod, make piston rod 2 still have the support length who satisfies the working requirement when whole overhanging, increase the direction length of piston, increased the direction span point apart from like this at the in-process of action, avoided the phenomenon of drawing the jar to take place.

Claims

1. A every single move hydro-cylinder which characterized in that: the oil cylinder comprises an ear ring, a piston rod, a gland, a gasket, a front end cover, a cylinder flange, a cylinder, a buffer plunger, a stroke spacer bush, a first piston, a guide ring, a second piston and a rear end cover;