CN201190662Y - Pressure element - Google Patents

Abstract

The utility model provides a pressure body component which is mainly used for connecting a cross head and a piston rod. The pressure body component is composed of a pressure body component I and a pressure body component II which are connected together and can perform slight movement. The pressure body component is a novel connector adopting the liquid pressure principle to perform tight connection between thread fittings. The pressure body component is clamped between the piston rod and the cross head; the pressure body component I is closely sleeved in the pressure body component II, and the pressure body components I and II can move mutually to generate a space; the inside space of a high pressure oil gun is filled with high pressure oil so as to provide the two components with enough outward thrust; the pressure body component I closely pushes a cross head adjusting cushion, and the pressure body component II closely pushes the piston rod so that the piston rod and the cross head generate a certain inner stress; when the stress reaches a certain requirement, the oil pressure is discharged and an anti-release nut is tightened so as to finish the connection. The utility model has the characteristics of firm and reliable connection and time and labor save conservation and completely solves the problem that the conventional connection method requires a plurality of persons.

Description

A kind of pressure body parts

Technical field

The utility model belongs to the connection area between the live metal spare, a kind of specifically pressure body parts.

Background technique

At present, the problem of compressor parking maintenance mostly concentrates on crosshead and piston rod damages, link together by the attaching nut, because the attaching nut is loosening is the main cause that causes piston rod and crosshead to damage, and loosening main cause is that fastening being to use of attaching nut manually carry out, and the fastening randomness of personnel is bigger, does not have certain determined value, therefore usually cause the power of being fastenedly connected to make inadequately to connect and become flexible, cause crosshead and piston rod to damage.

Summary of the invention

The utility model provides a kind of pressure body parts, has been mainly used between crosshead and the piston rod to be connected.

The object of the present invention is achieved like this: the pressure body parts are made up of the pressure body parts I and the pressure body parts II that can move on a small quantity mutually that link together, be that a kind of hydraulic principle that adopts carries out the novel connecting body that is fastenedly connected between threaded fittings, the pressure body parts are clipped between piston rod and the crosshead, pressure body parts 1 are enclosed within the pressure body parts 2 tightly, can move mutually between two-part and produce certain space, going into high pressure oil by high pressure oil gun notes in the space makes two-part that enough extrapolabilities be arranged, pressure body parts 1 tightly push away the crosshead spacer, pressure body parts 2 tight push piston bars, thereby make piston rod and crosshead produce certain internal stress, when stress arrival requires, oil pressure is laid down, and promptly finished connection with lock nut is fastening.The invention has the beneficial effects as follows: the pressure body parts have firm and reliable connection, and time saving and energy saving characteristics have thoroughly solved the difficult problem that traditional Placement needs many people just can finish.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Jack panel 3. pressure body parts II 4. back-up rings 5. seal rings 6. spacers 7. pins 8. screws 9. adjusting nuts on the 1. pressure body parts I 2. among the figure

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

The pressure body parts are clipped between piston rod and the crosshead, pressure body mainly is made up of the pressure body parts I1 and the pressure body parts II2 that can move on a small quantity mutually that link together, pressure body parts I1 is enclosed within the pressure body parts II2 at leisure, can move mutually between two-part and produce certain space, an oil hole is arranged on the pressure body parts I2, going into high pressure oil by high pressure oil gun notes in the space makes two-part that enough extrapolabilities be arranged, pressure body parts 1 tightly push away the crosshead spacer, the tight push piston bar of pressure body parts II2, thereby make piston rod and crosshead produce certain internal stress, when showing 150 MPas to the pressure gauge of high pressure oil gun, oil pressure is laid down, and promptly finished connection with lock nut is fastening.

Claims (1)

1, a kind of pressure body parts, it is characterized in that, the pressure body parts are made up of the pressure body parts I and the pressure body parts I I that can move on a small quantity mutually that link together, be that a kind of hydraulic principle that adopts carries out the novel connecting body that is fastenedly connected between threaded fittings, the pressure body parts are clipped between piston rod and the crosshead, pressure body parts (1) are enclosed within the pressure body parts (2) tightly, can move mutually between two-part and produce certain space, going into high pressure oil by high pressure oil gun notes in the space makes two-part that enough extrapolabilities be arranged, pressure body parts (1) tightly push away the crosshead spacer, the tight push piston bar of pressure body parts (2), thereby make piston rod and crosshead produce certain internal stress, when stress arrives when requiring, oil pressure is laid down, and promptly finished connection with lock nut is fastening.

Images