CN108894954B

CN108894954B - Air compressor piston

Info

Publication number: CN108894954B
Application number: CN201810764295.8A
Authority: CN
Inventors: 付冬生; 范煜; 程玉成; 严建文; 王玉山; 时春生; 汪海明; 李岩
Original assignee: Anhui Siyuan Three Light Intelligent Manufacturing Co Ltd
Current assignee: Anhui Siyuan Three Light Intelligent Manufacturing Co Ltd
Priority date: 2018-07-12
Filing date: 2018-07-12
Publication date: 2020-01-07
Anticipated expiration: 2038-07-12
Also published as: CN108894954A

Abstract

The invention discloses an air compressor piston which comprises a piston body, wherein a threaded rod is fixedly installed on the piston body, a threaded sleeve is connected onto the threaded rod in a threaded mode, a lantern ring is sleeved at the outer side end of the threaded sleeve, the outer side of the lantern ring is hinged to one end of a connecting rod, the other end of the connecting rod is connected to a mounting plate fixed to one end of a pushing rod in a cross mode, the other end of the pushing rod penetrates through a through hole formed in the piston body and is fixed to a clamping ring, and a sealing ring is clamped on the outer side of. The sealing ring is novel in design, the sleeve ring is driven to move along the right side direction of the threaded rod through the rotation of the arranged threaded sleeve, the clamping ring is driven to diffuse outwards through the action of the connecting rod and the pushing rod when the sleeve ring moves, so that the sealing ring is expanded to be better attached to the piston cylinder, and the problem of poor using effect of the piston cylinder due to the fact that the sealing ring cannot be attached to the piston cylinder due to long-term use is effectively solved.

Description

Air compressor piston

Technical Field

The invention relates to a piston, in particular to a piston of an air compressor.

Background

An air compressor is a device for compressing gas. The air compressor is constructed similarly to a water pump. Most air compressors are reciprocating piston type, rotating vane or rotating screw. When the centrifugal compressor is a very large application program compressor, air is sucked in through a self-cleaning air filter, the air enters a first-stage compression system after being automatically adjusted through an inlet guide vane through a PLC (programmable logic controller) automatic cleaning filter, the air is cooled (the temperature of the air after the first-stage compression is higher, the air enters an intercooler for cooling (the water flow of the intercooler is required to be 110m/h) and then enters a second-stage compression system, a suspended full-open check valve is arranged on an exhaust pipeline of the compressor for preventing the air in the system from being poured into a compression cavity (preventing starting under pressure), the air discharged by the compressor pushes the check valve open to enter an exhaust silencer, and then enters a first-stage aftercooler, a second-stage aftercooler and then an exhaust main pipeline.

The traditional piston is made of silicon-aluminum alloy through die casting and is provided with a circumferential ring groove embedded with an oil ring and a gas ring. The connecting rod and the common piston pin can swing relatively in a certain angle range.

The piston is generally sleeved with a rubber ring, so that the sealing performance between the piston and the cylinder wall is improved, however, the rubber ring on the piston has certain loss after being used for a certain time, the sealing performance between the piston and the cylinder wall is poor, and the using effect of the piston cylinder is poor.

Disclosure of Invention

The invention aims to provide an air compressor piston to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an air compressor machine piston, includes the piston body, fixed mounting has the threaded rod on the piston body, threaded connection threaded sleeve on the threaded rod, and threaded sleeve's outside end cover is equipped with the lantern ring, the outside of lantern ring is articulated with the one end of connecting rod, and the other end handing-over of connecting rod is on the mounting panel that is fixed in catch bar one end, the other end of catch bar runs through the through-hole that sets up on the piston body and fixes on the snap ring, and the outside joint of snap ring has the sealing washer, the snap ring includes first arc fastener and second arc fastener, the tip of second arc fastener is pegged graft in first arc fastener and with first arc fastener sliding connection.

As a further scheme of the invention: the connecting rod is provided with a plurality of and become circumferential connection on the lantern ring.

As a still further scheme of the invention: the inner side of the lantern ring is provided with an annular clamping block, and the annular clamping block rotates in an annular clamping groove formed in the threaded sleeve.

As a still further scheme of the invention: the outer side ends of the first arc-shaped clamping piece and the second arc-shaped clamping piece are provided with clamping grooves for mounting sealing rings.

As a still further scheme of the invention: the threaded rod is further connected with a locking nut in a threaded mode, and a cylindrical rod is fixedly connected to the left side of the threaded rod.

As a still further scheme of the invention: and the piston body is also provided with an oiling mechanism.

As a still further scheme of the invention: the oiling mechanism comprises an oiling groove and an oil storage cavity, the oil storage cavity is communicated with the oiling groove through a plurality of oiling channels arranged in the circumferential direction, an oiling port is formed in the right end of the oil storage cavity, an end cap is arranged on the oiling port, and the oiling port is arranged in a groove in the piston body.

As a still further scheme of the invention: and a plurality of annular oil grooves are formed in the outer side end of the piston body.

As a still further scheme of the invention: the sealing ring is made of rubber materials.

As a still further scheme of the invention: and an anti-skid bulge is arranged at the outer side end of the threaded sleeve.

Compared with the prior art, the invention has the beneficial effects that: the piston cylinder has a novel design, the sleeve ring is driven to move along the right side direction of the threaded rod by the rotation of the arranged threaded sleeve, the snap ring is driven to diffuse outwards by the action of the connecting rod and the pushing rod when the sleeve ring moves, so that the sealing ring is expanded and better attached to the piston cylinder, the problem of poor use effect of the piston cylinder due to the fact that the sealing ring cannot be tightly attached to the piston cylinder after long-term use is effectively solved, lubricating oil in the oil storage cavity enters the oil filling groove through the oil filling channel to lubricate the piston body and the cylinder wall, the lubricating effect is high, the problem of poor lubricating effect due to traditional splashing type passive lubrication is effectively solved, and the piston cylinder is worthy.

Drawings

Fig. 1 is a schematic structural diagram of a piston of an air compressor.

Fig. 2 is a side view of the piston of the air compressor.

Fig. 3 is a schematic structural diagram of a snap ring in an air compressor piston.

Fig. 4 is a schematic structural diagram of a first arc-shaped clamping piece in the piston of the air compressor.

In the figure: 1-a piston body, 2-an oil groove, 3-an oil groove, 4-an oil channel, 5-an oil storage cavity, 6-a groove, 7-a sealing ring, 8-a snap ring, 9-a push rod, 10-a mounting plate, 11-a connecting rod, 12-a cylindrical rod, 13-a threaded rod, 14-a locking nut, 15-a threaded sleeve, 16-a lantern ring, 17-a plug, 18-a first arc-shaped clamping piece, 19-a second arc-shaped clamping piece and 20-a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example one

Referring to fig. 1 to 4, in the embodiment of the present invention, an air compressor piston includes a piston body 1, a threaded rod 13 is fixedly installed on the piston body 1, the threaded rod 13 is connected with a threaded sleeve 15 in a threaded manner, an outer side end of the threaded sleeve 15 is sleeved with a collar 16, an inner side of the collar 16 is provided with an annular fixture block, the annular fixture block rotates in an annular fixture groove formed in the threaded sleeve 15, an outer side of the collar 16 is connected with one end of a connecting rod 11, the other end of the connecting rod 11 is connected with a mounting plate 10 fixed to one end of a push rod 9, the connecting rod 11 is provided with a plurality of annular fixture blocks which are circumferentially connected to the collar 16, the other end of the push rod 9 penetrates through a through hole formed in the piston body 1 and is fixed to a snap ring 18, a seal ring 7 is clamped to an outer side of the snap ring, the lantern ring 16 drives the snap ring 18 to diffuse outwards through the effect of connecting rod 11 and catch bar 9 when removing to play the effect of extension to sealing washer 7, make the better laminating piston cylinder of sealing washer 7, snap ring 18 includes first arc fastener 18 and second arc fastener 19, and the tip of second arc fastener 19 is pegged graft in first arc fastener 18 and with first arc fastener 18 sliding connection.

The outer ends of the first arc-shaped clamping piece 18 and the second arc-shaped clamping piece 19 are respectively provided with a clamping groove 20 for mounting the sealing ring 7.

The threaded rod 13 is further connected with a locking nut 14 in a threaded mode, the locking nut 14 plays a role in fixing the threaded sleeve 15, and the cylindrical rod 12 is fixedly connected to the left side of the threaded rod 13.

Still be provided with oiling mechanism on piston body 1, oiling mechanism includes oiling groove 3 and oil storage chamber 5, and a plurality of oiling passageways 4 that oil storage chamber 5 set up through circumference communicate with oiling groove 3, and the right-hand member in oil storage chamber 5 is provided with the oiling mouth, is provided with end cap 17 on the oiling mouth, in the recess 6 of oiling mouth setting on piston body 1, the outside end of piston body 1 is provided with a plurality of ring oil grooves 2, and ring oil groove 2 plays the effect of storing to lubricating oil.

The sealing ring 7 is made of rubber materials.

Example two

The difference between the second embodiment and the first embodiment is that the outer end of the threaded sleeve 5 is provided with an anti-slip projection.

Need the special explanation in this application, the sealing washer, the threaded sleeve, the ring oil groove is prior art's application, 15 rotate through the threaded sleeve who sets up and drive lantern ring 16 and remove along threaded rod 13 right side direction, the effect through connecting rod 11 and catch bar 9 drives snap ring 18 outdiffusion when lantern ring 16 removes, thereby play the effect of extension to sealing washer 7, make the better laminating piston cylinder of sealing washer 7 be the innovation point of this application, it has effectively solved long-term use and has leaded to the sealing washer can't hug closely the piston cylinder and lead to the poor problem of piston cylinder result in using effect.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The air compressor piston comprises a piston body (1) and is characterized in that a threaded rod (13) is fixedly installed on the piston body (1), a threaded sleeve (15) is connected to the threaded rod (13) in a threaded manner, a lantern ring (16) is sleeved at the outer side end of the threaded sleeve (15), the outer side of the lantern ring (16) is hinged with one end of a connecting rod (11), the other end of the connecting rod (11) is connected on a mounting plate (10) fixed at one end of a push rod (9), the other end of the push rod (9) penetrates through a through hole arranged on the piston body (1) and is fixed on the snap ring (18), the outer side of the snap ring (18) is clamped with the sealing ring (7), the clamping ring (18) comprises a first arc-shaped clamping piece (18) and a second arc-shaped clamping piece (19), and the end part of the second arc-shaped clamping piece (19) is inserted into the first arc-shaped clamping piece (18) and is in sliding connection with the first arc-shaped clamping piece (18).

2. The air compressor piston as claimed in claim 1, characterized in that the inner side of the collar (16) is provided with an annular block which is rotatably arranged in an annular groove on the threaded sleeve (15).

3. The air compressor piston as claimed in claim 1, wherein the outer ends of the first arc-shaped clamping piece (18) and the second arc-shaped clamping piece (19) are provided with clamping grooves (20) for mounting the sealing ring (7).

4. The air compressor piston as claimed in claim 1, characterized in that a locking nut (14) is further screwed on the threaded rod (13), and a cylindrical rod (12) is fixedly connected to the left side of the threaded rod (13).

5. The air compressor piston as claimed in claim 1, characterized in that the sealing ring (7) is made of rubber material.

6. Piston for air compressors according to claim 1, characterized in that the outer end of said threaded sleeve (15) is provided with anti-slip projections.