CN203130419U - Aluminium piston component for compressor - Google Patents
Aluminium piston component for compressor Download PDFInfo
- Publication number
- CN203130419U CN203130419U CN 201320126087 CN201320126087U CN203130419U CN 203130419 U CN203130419 U CN 203130419U CN 201320126087 CN201320126087 CN 201320126087 CN 201320126087 U CN201320126087 U CN 201320126087U CN 203130419 U CN203130419 U CN 203130419U
- Authority
- CN
- China
- Prior art keywords
- piston
- aluminium
- pressing plate
- ring
- compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses an aluminium piston component for a compressor, which comprises an aluminium piston, a piston rod, a piston ring and a back-up ring, wherein one end of the piston rod passes through the central axle hole of the aluminium piston and is fixed by a locknut. The aluminium piston component is characterized in that a groove is formed in an end surface, where the piston rod is fixed, of the aluminium piston; a pressing plate matched with the inner diameter of the groove is mounted in the groove; and the pressing plate is fixed on the aluminium piston through bolts. As the pressing plate replaces an original locking gasket and is fixed on the piston through the bolts, the contact area of the piston and the pressing plate is increased, pressure on unit area of the aluminium piston is reduced, and probability of deformation of the aluminium piston is reduced; the pressing plate and the piston are prevented from rotating, so a series of safety problems caused by clearances produced as a result of abrasion are solved; the service life of the piston component is prolonged; the overall safe reliability of the compressor is improved; and the service life of the piston ring and the back-up ring is prolonged.
Description
Technical field
The utility model relates to the Reciprocting piston compressor field, particularly a kind of aluminum piston element for piston compressor.
Background technique
In Reciprocting piston compressor, piston element is one of critical movements part.Comprise the aluminium piston in the existing piston element design, piston rod, piston ring and supporting ring, diameter 50mm of end processing of aluminium piston fixed piston rod, the hole of the installation insurance packing ring of dark 18mm, then the safety washer of steel part material is put into the hole, by piston unt piston rod is fixed on the piston, this structure is through long-time high-speed motion, per minute will be done 980-740 to-and-fro motion, safety washer and aluminium piston surface of contact sink to producing the gap because of wearing and tearing, there is not locating stud fixing between safety washer and the aluminium piston, generation along with the gap, safety washer can be done irregular rotatablely moving, to accelerate safety washer like this and the aluminium wearing for piston causes the gap increasing, excesssive gap makes piston the engine knock phenomenon occur in the running up and down, can aggravate the wearing and tearing of piston ring and guide ring simultaneously, severe patient can occur taking blame for others or rod fracture and cause security incident.
The model utility content
The purpose of this utility model is to provide a kind of compressor aluminum piston element of avoiding the piston end surface wearing and tearing to produce the gap, rock, thoroughly solve because of engine knock that wearing and tearing take place, take blame for others and the rod fracture problem, make compressor operating more safe and reliable, improve the working life of compressor.
The purpose of this utility model is achieved by the following technical programs, a kind of compressor aluminum piston element, comprise aluminium piston, piston rod, piston ring and supporting ring, one end of piston rod passes the central shaft hole of aluminium piston and fixes by locking nut, it is characterized in that, the end face of described aluminium piston fixed piston rod offers groove, and the pressing plate that cooperates with the groove internal diameter is housed in the groove.
Further, described pressing plate is by being bolted on the aluminium piston.
Beneficial effect: the utility model adopts pressing plate to replace original locking gasket and by being bolted on the aluminium piston, and the one, increase the area of contact of aluminium piston and pressing plate, reduce pressure on the aluminium piston unit area, reduce the probability of aluminium piston distortion; The 2nd, prevent that pressing plate and piston from rotating, avoid producing a series of safety problems that the gap causes because of wearing and tearing; Improve the working life of piston element, improve compressor general safety reliability; Improve piston ring, supporting ring working life.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of compressor aluminum piston element provided by the utility model, comprise aluminium piston 3, piston rod 7, piston ring 2 and supporting ring 1, one end of piston rod 7 passes the central shaft hole of aluminium piston 3 and fixes by locking nut 5, piston rod 7 is 500Nm with the pretightening force of locking nut 5, the end face of aluminium piston 3 fixed piston rods 7 is offered diameter 150～180mm groove 301, the pressing plate 4 that cooperates with the groove internal diameter is housed in the groove 301, and pressing plate 4 is fixed on the aluminium piston 3 by hexagon socket head cap screw 6.
The utility model adopts the larger area pressing plate to replace the existing less safety washer of area, increased the area of contact of aluminium piston and pressing plate, reduced the pressure on the unit area, act on the more for a short time probability of aluminium piston distortion that causes of pressure on the aluminium piston also reduces thereupon, pressing plate is fixed on the aluminium piston by hexagon socket head cap screw, preventing that pressing plate and aluminium piston from rotating causes contact surface abrasion, avoids producing a series of safety problems that the gap causes because of wearing and tearing.
Above-described embodiment is as preferred embodiments of the present utility model; describe technical conceive of the present utility model and essential implementation in detail; be not to be that protection domain of the present utility model is limited; all any simple modification and equivalent structure transformation or modifications of doing according to the utility model spirit essence all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. compressor aluminum piston element, comprise aluminium piston, piston rod, piston ring and supporting ring, one end of piston rod passes the central shaft hole of aluminium piston and fixes by locking nut, it is characterized in that, the end face of described aluminium piston fixed piston rod is provided with groove, and the pressing plate that cooperates with the groove internal diameter is housed in the groove.
2. a kind of compressor aluminum piston element according to claim 1 is characterized in that, described pressing plate is by being bolted on the aluminium piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126087 CN203130419U (en) | 2013-03-20 | 2013-03-20 | Aluminium piston component for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126087 CN203130419U (en) | 2013-03-20 | 2013-03-20 | Aluminium piston component for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130419U true CN203130419U (en) | 2013-08-14 |
Family
ID=48938407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320126087 Expired - Fee Related CN203130419U (en) | 2013-03-20 | 2013-03-20 | Aluminium piston component for compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203130419U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527467A (en) * | 2013-10-27 | 2014-01-22 | 天津市仕杰达能源技术开发有限公司 | Composite piston used for piston pump and provided with seal ring convenient to replace |
-
2013
- 2013-03-20 CN CN 201320126087 patent/CN203130419U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527467A (en) * | 2013-10-27 | 2014-01-22 | 天津市仕杰达能源技术开发有限公司 | Composite piston used for piston pump and provided with seal ring convenient to replace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20200320 |