CN204253326U - A kind of compression cylinder with stuffing type sealing device - Google Patents

Abstract

Have a compression cylinder for stuffing type sealing device, comprise oil cylinder, the both sides of described oil cylinder are respectively equipped with cylinder, are respectively equipped with the first intermediate mass and the second intermediate mass between oil cylinder and the cylinder of both sides, and are positioned at compression cylinder and go forward side by side the piston rod of line slip; Be resisted against the two ends of described oil cylinder inside described first intermediate mass and the second intermediate mass respectively and formed in inside lower end and insert in-oil cylinder boss, the outside internal surface of described first intermediate mass and the second intermediate mass forms the recessed edge stretched into for cylinder, and at described first intermediate mass be provided with stuffing seal between the second intermediate mass and cylinder; Thus, the utility model structure is simple, and handling are convenient; Oil cylinder and intermediate mass need not be separated and can change, without the need to draining the oil, reduce and special device and professional workforce are relied on.

Description

A kind of compression cylinder with stuffing type sealing device

Technical field

The utility model relates to the technical field of CNG aerating compression cylinder, particularly relates to a kind of compression cylinder with stuffing type sealing device.

Background technique

The intermediate mass seal ring of existing horizontal hydraulic piston compressor belongs to easily damaged parts, change once every 2 months needs, when seal ring changed by needs, dismounting difficulty is large, need the cost time of 2 to 3 days, first oil in oil cylinder is all put totally, then intermediate mass and cylinder are separated, finally intermediate mass and oil cylinder and piston rod are separated, then seal ring replacing is carried out, special instrument and equipment and the personnel of specialty are needed when returning dress, by coaxial for intermediate mass adjustment, once there is disalignment, oil cylinder can not work, and damage is caused to oil cylinder and piston rod, thus need to change oil cylinder and piston rod, this work needs complete at the soonest for two days, stop runing for two days and will bring about great losses to user, some user is for ensureing operation, and frequent whole cylinder body for subsequent use at the scene, wastes mint of money.

For this reason, artificer of the present utility model is because above-mentioned defect, and by concentrating on studies and designing, comprehensive experience and the achievement being engaged in related industry for a long time for many years, research and design goes out a kind of compression cylinder with stuffing type sealing device, to overcome above-mentioned defect.

Model utility content

The purpose of this utility model is to provide a kind of compression cylinder with stuffing type sealing device, and its structure is simple, easier when replacing sealing, avoids the defect of prior art.

For achieving the above object, the utility model discloses a kind of compression cylinder with stuffing type sealing device, comprise oil cylinder, the both sides of described oil cylinder are respectively equipped with cylinder, it is characterized in that:

Between oil cylinder and the cylinder of both sides, be respectively equipped with the first intermediate mass and the second intermediate mass, and be positioned at compression cylinder and go forward side by side the piston rod of line slip;

Described first intermediate mass and the second intermediate mass are provided with the oil circuit be communicated with inside outside oil supplying device and described oil cylinder;

The two ends of described piston rod lay respectively in the cylinder of both sides, and be provided with in the middle part of it and be positioned at described in-oil cylinder projection, the outer diameter of described projection is identical with the inner diameter of oil cylinder;

Be resisted against the two ends of described oil cylinder inside described first intermediate mass and the second intermediate mass respectively and formed in inside lower end and insert in-oil cylinder boss, the outside internal surface of described first intermediate mass and the second intermediate mass forms the recessed edge stretched into for cylinder, and at described first intermediate mass be provided with stuffing seal between the second intermediate mass and cylinder.

Wherein: described stuffing seal comprises the second material filling type Sealing in the first material filling type Sealing inside being positioned at and outside.

Known by said structure, the compression cylinder with stuffing type sealing device of the present utility model has following effect:

1, structure is simple, and handling are convenient;

2, oil cylinder and intermediate mass need not be separated and can change, without the need to draining the oil, reduce and special device and professional workforce are relied on;

3, maintenance efficiency is higher, improves working life.

Detailed content of the present utility model obtains by explanation described later and institute's accompanying drawing.

Accompanying drawing explanation

Fig. 1 shows the structural representation with the compression cylinder of stuffing type sealing device of the present utility model.

Fig. 2 shows the enlarged diagram of circle in Fig. 1.

Description of reference numerals:

First intermediate mass 1-1, the second intermediate mass 1-2, the first material filling type Sealing 2, second material filling type Sealing 3, cylinder 4, oil cylinder 5, piston rod 6.

Embodiment

See Fig. 1 and Fig. 2, show the compression cylinder with stuffing type sealing device of the present utility model.

This compression cylinder with stuffing type sealing device comprises oil cylinder 5, the both sides of described oil cylinder 5 are respectively equipped with cylinder 4, between oil cylinder 5 and the cylinder 4 of both sides, be respectively equipped with the first intermediate mass 1-1 and the second intermediate mass 1-2, and be positioned at compression cylinder and go forward side by side the piston rod 6 of line slip.

Wherein, described first intermediate mass 1-1 is provided with the second intermediate mass 1-2 the oil circuit be communicated with inside outside oil supplying device and described oil cylinder 5, as described in Figure 1, described first intermediate mass 1-1 and the second intermediate mass 1-2 is respectively equipped with L-type through hole, to be communicated with.

The two ends of described piston rod 6 lay respectively in the cylinder 4 of both sides, the projection being positioned at described oil cylinder 5 is provided with in the middle part of it, the outer diameter of described projection is identical with the inner diameter of oil cylinder 5, thus the oil circuit of the first intermediate mass 1-1 and the second intermediate mass 1-2 respectively to interior pass into pressure oil time, piston rod 6 can be promoted and slide in oil cylinder 5.

Wherein, be resisted against the two ends of described oil cylinder 5 inside described first intermediate mass 1-1 and the second intermediate mass 1-2 respectively and form in inside lower end the boss inserted in oil cylinder 5, thus the projection of piston rod 6 can only move between the first intermediate mass 1-1 and the boss of the second intermediate mass 1-2, the outside internal surface of described first intermediate mass 1-1 and the second intermediate mass 1-2 forms the recessed edge stretched into for cylinder 4, and at described first intermediate mass 1-1 be provided with stuffing seal between the second intermediate mass 1-2 and cylinder 4, to seal at the first intermediate mass 1-1 and being formed between the second intermediate mass 1-2 and cylinder 4, avoid the leakage of oil circuit.

Wherein, described stuffing seal comprises the second material filling type Sealing 3 in the first material filling type Sealing 2 inside being positioned at and outside.

Thus, when needs are changed sealing, only need cylinder 4 to separate with intermediate mass, then take off stuffing seal, change seal ring, then return dress cylinder 4;

Thus, the advantage of the application is:

1, structure is simple, and handling are convenient;

2, oil cylinder and intermediate mass need not be separated and can change, without the need to draining the oil, reduce and special device and professional workforce are relied on;

3, maintenance efficiency is higher, improves working life.

It is evident that, above description and record be only citing instead of in order to limit disclosure of the present utility model, application or use.Although described in an embodiment and be described in the drawings embodiment, but the utility model do not limit by accompanying drawing example and describe in an embodiment as the optimal mode thought at present to implement the specific examples of instruction of the present utility model, scope of the present utility model will comprise any embodiment of specification and the appended claim fallen into above.

Claims (2)

1. have a compression cylinder for stuffing type sealing device, comprise oil cylinder, the both sides of described oil cylinder are respectively equipped with cylinder, it is characterized in that:

Between oil cylinder and the cylinder of both sides, be respectively equipped with the first intermediate mass and the second intermediate mass, and be positioned at compression cylinder and go forward side by side the piston rod of line slip;

Described first intermediate mass and the second intermediate mass are provided with the oil circuit be communicated with inside outside oil supplying device and described oil cylinder;

The two ends of described piston rod lay respectively in the cylinder of both sides, and be provided with in the middle part of it and be positioned at described in-oil cylinder projection, the outer diameter of described projection is identical with the inner diameter of oil cylinder;

Be resisted against the two ends of described oil cylinder inside described first intermediate mass and the second intermediate mass respectively and formed in inside lower end and insert in-oil cylinder boss, the outside internal surface of described first intermediate mass and the second intermediate mass forms the recessed edge stretched into for cylinder, and at described first intermediate mass be provided with stuffing seal between the second intermediate mass and cylinder.

2. there is the compression cylinder of stuffing type sealing device as claimed in claim 1, it is characterized in that: described stuffing seal comprises the second material filling type Sealing in the first material filling type Sealing inside being positioned at and outside.