CN216894786U - Elastic force compensation device of non-metal piston ring - Google Patents
Elastic force compensation device of non-metal piston ring Download PDFInfo
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- CN216894786U CN216894786U CN202123081901.2U CN202123081901U CN216894786U CN 216894786 U CN216894786 U CN 216894786U CN 202123081901 U CN202123081901 U CN 202123081901U CN 216894786 U CN216894786 U CN 216894786U
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- piston ring
- piston
- elastic
- nonmetal
- elastic force
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Abstract
The utility model discloses an elastic force compensation device of a non-metal piston ring, which comprises a special piston and is characterized in that: the piston ring groove is arranged on the outer side of the special piston, the elastic compensation piece is installed at the bottom of the piston ring groove, the nonmetal piston ring is installed in the piston ring groove and the elastic compensation piece of the special piston, the cylinder is connected to the outer side of the special piston in a sliding mode, the special piston, the elastic compensation piece and the nonmetal piston ring are installed in the cylinder after being assembled, the nonmetal piston ring elastic compensation device is different from a known elastic compensation mode, the elastic compensation piece is installed at the bottom of the piston ring groove on the special piston, and the nonmetal piston ring is installed in the piston ring groove and the elastic compensation piece, so that the uniform elastic compensation of the piston ring on the whole circumference is realized, and the fault caused by the fact that the elastic compensation part is separated from the piston ring groove after the nonmetal piston ring is abraded is avoided.
Description
Technical Field
The utility model relates to an oil-free piston type compressor, belongs to the technical field of oil-free piston type vacuum pumps, and particularly relates to an elastic force compensation device for a non-metal piston ring.
Background
An oil-free piston type compressor and an oil-free piston type vacuum pump are gas conveying equipment, and the piston provided with a non-metal piston ring reciprocates in a cylinder to realize gas conveying.
The existing oil-free piston compressor, oil-free piston vacuum pump, its non-metal piston ring's elasticity compensation arrangement have following problem, traditional elasticity compensation arrangement installs the piston ring tank bottom on the piston through an open-ended elasticity ring, therefore the elasticity of piston ring on the full circumference is inhomogeneous, leads to the piston ring wearing and tearing inhomogeneous, and after non-metal piston ring wearing and tearing became invalid, the piston ring groove was easily scurried out to annular open-ended elasticity ring, leads to the abnormal damage of piston and cylinder.
Therefore, it is necessary to design an elastic force compensation device of a non-metal piston ring with strong practicability and good sealing performance.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to an elastic force compensation device for a non-metal piston ring, which solves the above problems.
In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides an elasticity compensation arrangement of nonmetal piston ring, includes purpose-made piston, the outside of purpose-made piston is provided with the piston ring groove, the elasticity compensation piece is installed to piston ring groove bottom, install nonmetal piston ring in the piston ring groove of purpose-made piston and on the elasticity compensation piece, the outside sliding connection of purpose-made piston has the cylinder.
According to the technical scheme, the side face of the elastic compensation piece is provided with a threaded hole, a screw is meshed with the internal thread of the threaded hole, the screw penetrates through the elastic compensation piece and is fixedly arranged, and the screw is meshed with the bottom thread of the piston ring groove of the special piston.
According to the technical scheme, at least two elastic force compensation pieces are fixed at the bottom of the piston ring groove of the special piston.
According to the technical scheme, the end part of the elastic compensation sheet is bent into a circular arc shape.
According to the technical scheme, the side face of the nonmetal piston ring is provided with the radial hole, the side face of the elastic compensation piece is fixedly connected with the pin with the external thread, and the pin with the external thread penetrates through the radial hole of the nonmetal piston ring.
According to the technical scheme, the specially-made piston, the non-metal piston ring and the elastic compensation sheet are assembled and then installed in the cylinder.
(1) Compared with the prior art, the utility model has the following beneficial effects: the nonmetal piston ring is installed in the circumferential direction of a specially-made piston, more than two (including two) elastic compensation pieces are uniformly installed at the bottom of a groove of a piston ring, the center of each elastic compensation piece is fixed at the bottom of the groove through a pin with external threads, the nonmetal piston ring is installed on the elastic compensation pieces in the groove, a hole is formed in the nonmetal piston ring, and the pin with the external threads penetrates through the hole. Because the elastic compensation piece is fixed, the failure caused by the fact that the elastic compensation piece is separated from the nonmetal piston ring groove on the piston after the nonmetal piston ring is abraded is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic view in full section of the present invention;
in the figure: 1. specially manufacturing a piston; 2. a non-metallic piston ring; 3. an elastic force compensation sheet; 4. a screw; 5. a cylinder; 6. a pin with external threads.
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.
Referring to fig. 1-1, the present invention provides the following technical solutions: the utility model provides an elasticity compensation arrangement of nonmetal piston ring, includes purpose-made piston 1, its characterized in that: a piston ring groove is arranged on the outer side of the special piston 1, an elastic compensation sheet 3 is arranged at the bottom of the piston ring groove, a nonmetal piston ring 2 is arranged in the piston ring groove of the special piston 1 and on the elastic compensation sheet 3, and a cylinder 5 is connected to the outer side of the special piston 1 in a sliding manner;
the side surface of the elastic compensation piece 3 is provided with a threaded hole, the inner thread of the threaded hole is engaged with a screw 4, the screw 4 penetrates through the fixed elastic compensation piece 3, and the screw 4 is engaged with the bottom thread of a piston ring groove of the special piston 1;
at least two elastic force compensation pieces 3 are fixed at the bottom of a piston ring groove of the special piston 1;
the end part of the elastic compensation sheet 3 is bent into a circular arc shape;
the side surface of the nonmetal piston ring 2 is provided with a radial hole, the side surface of the elastic compensation sheet 3 is fixedly connected with a pin 6 with external threads, and the pin 6 with the external threads penetrates through the radial hole of the nonmetal piston ring 2;
the specially-made piston 1, the non-metal piston ring 2 and the elastic compensation sheet 3 are assembled and then installed in the cylinder 5.
The working principle is as follows: the nonmetal piston ring is installed in the circumferential direction of a specially-made piston, more than two (including two) elastic compensation pieces are uniformly installed at the bottom of a groove of a piston ring, the center of each elastic compensation piece is fixed at the bottom of the groove through a pin with external threads, the nonmetal piston ring is installed on the elastic compensation pieces in the groove, a hole is formed in the nonmetal piston ring, and the pin with the external threads penetrates through the hole. Because the elastic compensation piece is fixed, the failure caused by the fact that the elastic compensation piece is separated from the nonmetal piston ring groove on the piston after the nonmetal piston ring is abraded is avoided.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides an elasticity compensation arrangement of nonmetal piston ring, includes purpose-made piston (1), its characterized in that: the outside of purpose-built piston (1) is provided with the piston ring groove, elasticity compensation piece (3) are installed to piston ring groove bottom, install nonmetal piston ring (2) in the piston ring groove of purpose-built piston (1) and on elasticity compensation piece (3), the outside sliding connection of purpose-built piston (1) has cylinder (5).
2. The elastic force compensating device of a non-metallic piston ring according to claim 1, wherein: the side of the elastic compensation piece (3) is provided with a threaded hole, a screw (4) is meshed with the internal thread of the threaded hole, the screw (4) penetrates through the elastic compensation piece (3) to be fixed, and the screw (4) is meshed with the bottom thread of a piston ring groove of the special piston (1).
3. The elastic force compensating device of a non-metallic piston ring according to claim 2, wherein: at least two elastic force compensation pieces (3) are fixed at the bottom of a piston ring groove of the special piston (1).
4. The device for compensating for an elastic force of a non-metallic piston ring according to claim 3, wherein: the end part of the elastic compensation sheet (3) is bent into a circular arc shape.
5. The device for compensating for an elastic force of a non-metallic piston ring according to claim 4, wherein: the side of the nonmetal piston ring (2) is provided with a radial hole, the side of the elastic compensation piece (3) is fixedly connected with a pin (6) with external threads, and the pin (6) with the external threads penetrates through the radial hole of the nonmetal piston ring (2).
6. The device for compensating for an elastic force of a non-metallic piston ring according to claim 5, wherein: the specially-made piston (1), the non-metal piston ring (2) and the elastic compensation sheet (3) are assembled and then installed in the cylinder (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081901.2U CN216894786U (en) | 2021-12-09 | 2021-12-09 | Elastic force compensation device of non-metal piston ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123081901.2U CN216894786U (en) | 2021-12-09 | 2021-12-09 | Elastic force compensation device of non-metal piston ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216894786U true CN216894786U (en) | 2022-07-05 |
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ID=82204470
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123081901.2U Active CN216894786U (en) | 2021-12-09 | 2021-12-09 | Elastic force compensation device of non-metal piston ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216894786U (en) |
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2021
- 2021-12-09 CN CN202123081901.2U patent/CN216894786U/en active Active
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