CN213540657U - Durable automobile air compressor piston - Google Patents
Durable automobile air compressor piston Download PDFInfo
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- CN213540657U CN213540657U CN202022323076.1U CN202022323076U CN213540657U CN 213540657 U CN213540657 U CN 213540657U CN 202022323076 U CN202022323076 U CN 202022323076U CN 213540657 U CN213540657 U CN 213540657U
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Abstract
The utility model belongs to the technical field of automobile air compressor pistons, in particular to a durable automobile air compressor piston, which comprises a piston body, a piston connecting rod and a piston pin, wherein a pin hole is formed in the piston body, two symmetrically distributed positioning sleeves are arranged in the pin hole, an elastic balance assembly is arranged on the inner wall of each positioning sleeve, and a guide assembly is arranged on the outer wall of each positioning sleeve; the elastic balance assembly comprises a balance block and a second telescopic spring, and the guide assembly comprises a limiting bracket, a first telescopic spring and a guide lug; the automobile air compressor piston of the utility model can improve the stability of the piston pin through the elastic balance component and the guide component, avoid the piston connecting rod from driving the piston pin to shake and transmit the shake to the piston body, ensure the oil scraping effect and prolong the service life of the piston body and the cylinder body; due to the arrangement of the lower oil scraping ring, the oil return groove and the oil return hole, the oil scraping effect of the piston is further improved, an oil return function is achieved, oil blowby of an air compressor is reduced, and the environment-friendly requirement is met.
Description
Technical Field
The utility model belongs to the technical field of the automobile air compressor machine piston, concretely relates to durable type automobile air compressor machine piston.
Background
The piston is a part which does reciprocating motion in the cylinder body of the automobile engine, the basic structure of the piston can be divided into a top part, a head part and a skirt part, the top part of the piston is the main part forming a combustion chamber, the shape of the piston is related to the selected combustion chamber form, and the gasoline engine mostly adopts a flat-top piston, and has the advantage of small heat absorption area; the top of the piston of the diesel engine is provided with various pits, and the specific shape, position and size of the pits are matched with the requirements of mixed gas formation and combustion of the diesel engine, wherein the piston of the automobile air compressor is one of the core parts of the automobile air compressor.
Original piston for car is when using, chinese utility model patent that application number is 201120236545.4 just discloses a "car air compressor piston", be equipped with the stairstepping line on the guide part excircle of piston body, and be equipped with a little inclined plane between the adjacent ladder face, the effect of scraping oil downwards has been reinforceed, therefore it is effectual to have the scraping oil, can reduce the air compressor machine oil pumping, the oil consumption is few, and is with low costs, the advantage that accords with the environmental protection requirement, but, this piston body is when reciprocating motion in the cylinder body under piston rod's pulling, the gudgeon pin of being connected with the pull rod can constantly shake, this shake can transmit to the piston body through the gudgeon pin, lead to the piston body to produce the shake in the cylinder body, must influence the life of scraping oil effect and piston cylinder body.
SUMMERY OF THE UTILITY MODEL
For solving the above-mentioned problem that exists among the prior art, the utility model provides a durable type automobile air compressor machine piston has the characteristics of operate steadily, the frizing is effectual and long service life.
In order to achieve the above object, the utility model provides a following technical scheme: a durable automobile air compressor piston comprises a piston body, a piston connecting rod and a piston pin, wherein a pin hole is formed in the piston body, the top end of the piston connecting rod is embedded into the piston body, and the piston pin penetrates through the pin hole and the embedded end of the piston connecting rod; an upper ring groove is formed in the upper portion of the outer side face of the piston body, an upper oil scraper ring is arranged in the upper ring groove, two symmetrically-distributed positioning sleeves are arranged in the pin holes, an elastic balance assembly is arranged on the inner walls of the positioning sleeves, and a guide assembly is arranged on the outer walls of the positioning sleeves; the elastic balance assembly comprises a balance block and a second telescopic spring, and the guide assembly comprises a limiting support, a first telescopic spring and a guide convex block.
As a preferred technical scheme of the utility model, No. two movable grooves have been seted up to positioning sleeve's inner wall, the one end embedding of balancing piece is in this No. two movable grooves, the other end stretches out No. two movable grooves and with the outer wall overlap joint of piston pin, No. two expanding spring distribute be in the embedding end terminal surface of balancing piece with between No. two movable groove's the tank bottom.
As a preferred technical scheme of the utility model, spacing support is "L" form component the horizontal part terminal surface of spacing support has been seted up a movable groove in the guide chute of circular-arc structure is seted up to piston rod's outer wall, the one end embedding of direction lug is movable inslot, the other end stretches out in a movable groove and the embedding guide chute, an expanding spring distributes the embedding end terminal surface of direction lug with between the groove end wall of a movable groove.
As a preferred technical scheme of the utility model, the end that stretches out of direction lug is hemispherical structure, the section of direction spout is semi-circular structure.
As an optimized technical scheme of the utility model, the direction subassembly is the diagonal formula and is provided with four groups.
As an optimal technical scheme of the utility model, every the balanced subassembly of elasticity in the position sleeve all is equipped with four groups, and four groups the balanced subassembly of elasticity is the equidistant distribution of annular.
As a preferred technical solution of the present invention, the outer wall of the piston body is further provided with an oil return groove, the piston body is further provided with a plurality of oil return holes distributed in an annular shape at equal intervals, and the oil return holes communicate the inner space of the piston body with the oil return groove; the lower part of the outer side surface of the piston body is provided with a lower ring groove, and lower oil scraping rings are distributed in the lower ring groove.
Compared with the prior art, the beneficial effects of the utility model are that: the automobile air compressor piston of the utility model can improve the stability of the piston pin through the configured elastic balance component and the guide component, avoid the piston connecting rod from driving the piston pin to shake and transmit the shake to the piston body, ensure the oil scraping effect and simultaneously improve the service life of the piston body and the cylinder body; due to the arrangement of the lower oil scraping ring, the oil return groove and the oil return hole, the oil scraping effect of the piston is further improved, an oil return function is achieved, oil blowby of an air compressor is reduced, and the environment-friendly requirement is met.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top sectional view of the piston body according to the present invention;
fig. 3 is a schematic front sectional structural view of the piston body in the present invention;
fig. 4 is an enlarged schematic structural view of a portion a of fig. 3 according to the present invention;
FIG. 5 is a schematic view of the front structure of the piston rod insertion portion of the present invention;
fig. 6 is an enlarged schematic structural view of the position B in fig. 3 according to the present invention;
in the figure: 1. a piston body; 2. a piston connecting rod; 3. a pin hole; 4. a piston pin; 5. an upper ring groove; 6. an upper oil scraper ring; 7. a lower ring groove; 8. a lower oil scraper ring; 9. an oil return groove; 10. an oil return hole; 11. positioning the sleeve; 12. A limiting bracket; 13. a first movable groove; 14. a first expansion spring; 15. a guide projection; 16. a guide chute; 17. a counterbalance; 18. a second movable groove; 19. and a second expansion spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example 1
Referring to fig. 1, fig. 3, fig. 4, fig. 5 and fig. 6, the present invention provides the following technical solutions: a durable automobile air compressor piston comprises a piston body 1, a piston connecting rod 2 and a piston pin 4, wherein a pin hole 3 is formed in the piston body 1, the top end of the piston connecting rod 2 is embedded into the piston body 1, and the piston pin 4 penetrates through the pin hole 3 and the embedded end of the piston connecting rod 2; an upper ring groove 5 is formed in the upper portion of the outer side face of the piston body 1, an upper oil scraper ring 6 is arranged in the upper ring groove 5, two symmetrically-distributed positioning sleeves 11 are arranged in the pin hole 3, an elastic balance assembly is arranged on the inner walls of the positioning sleeves 11, and a guide assembly is arranged on the outer walls of the positioning sleeves 11; elastic balance assembly includes balancing piece 17 and expanding spring 19 No. two, guide assembly includes spacing support 12, an expanding spring 14 and direction lug 15, when using, drive piston body 1 reciprocating motion in the cylinder body by piston rod 2, go up scraper ring 6 and realize the frizing effect, strike off the fluid of cylinder body inner wall, piston rod 2 is when driving piston body 1 through piston pin 4 and remove, piston pin 4 must produce the shake, at this moment, elastic balance assembly can cushion the impact that the shake that piston pin 4 caused piston body 1, thereby guarantee the steady of piston body 1, in addition, guide assembly makes piston rod 2 can for piston pin 4 swing movement angle, and piston rod 2's swing range has been restricted, piston rod 2's left and right sides skew has also been avoided simultaneously, further guarantee the steady of piston body 1.
Specifically, according to fig. 1, fig. 3, and fig. 6, in this embodiment, the inner wall of the positioning sleeve 11 is provided with a second movable groove 18, one end of the balance weight 17 is embedded into the second movable groove 18, and the other end of the balance weight extends out of the second movable groove 18 and is overlapped with the outer wall of the piston pin 4, the second expansion spring 19 is distributed between the end face of the embedded end of the balance weight 17 and the bottom of the second movable groove 18, under the elastic force action of the second expansion spring 19, the balance weight 17 can stably overlap the outer wall of the piston pin 4, the shake can be transmitted to the balance weight 17 through the piston pin 4, and the second expansion spring 19 absorbs and consumes, so as to avoid the shake generated from being transmitted to the piston body 1.
Specifically, according to fig. 1, fig. 3, fig. 4 and fig. 5, in this embodiment, the limiting bracket 12 is an "L" shaped member, the horizontal end surface of the limiting bracket 12 is provided with a first movable groove 13, the outer wall of the piston connecting rod 2 is provided with a guide sliding groove 16 having an arc-shaped structure, one end of the guide protrusion 15 is embedded in the first movable groove 13, the other end of the guide protrusion 15 extends out of the first movable groove 13 and is embedded in the guide sliding groove 16, a first expansion spring 14 is distributed between the end surface of the embedded end of the guide protrusion 15 and the end wall of the first movable groove 13, when the piston connecting rod 2 drives the piston body 1 to reciprocate in the cylinder, the piston connecting rod 2 is allowed to rotate at a certain angle relative to the piston pin 4, the extending end of the guide protrusion 15 is stably embedded in the guide sliding groove 16 under the elastic force of the first expansion spring 14, when the piston connecting, the guide projection 15 slides along the guide runner 16.
Specifically, according to fig. 1, 3, 4 and 5, in the present embodiment, the protruding end of the guide protrusion 15 has a hemispherical structure, and the cross section of the guide chute 16 has a semicircular structure, which is adapted to the particle size of the piston rod 2 rotating relative to the piston pin 4.
Specifically, as shown in fig. 1 and 3, in this embodiment, the four guiding assemblies are diagonally arranged, so that the piston rod 2 is prevented from shifting left and right, and the stability of the piston body 1 is further ensured.
Specifically, as shown in fig. 1 and fig. 3, in this embodiment, four sets of elastic balance assemblies are arranged in each positioning sleeve 11, and the four sets of elastic balance assemblies are distributed in an annular shape at equal intervals, so that the parallel effect is good, the shake absorbing capability is strong, and the stability of the piston body 1 is ensured.
Example 2
Referring to fig. 1-6, the present invention provides the following technical solutions: a durable automobile air compressor piston comprises a piston body 1, a piston connecting rod 2 and a piston pin 4, wherein a pin hole 3 is formed in the piston body 1, the top end of the piston connecting rod 2 is embedded into the piston body 1, and the piston pin 4 penetrates through the pin hole 3 and the embedded end of the piston connecting rod 2; an upper ring groove 5 is formed in the upper portion of the outer side face of the piston body 1, an upper oil scraper ring 6 is arranged in the upper ring groove 5, two symmetrically-distributed positioning sleeves 11 are arranged in the pin hole 3, an elastic balance assembly is arranged on the inner walls of the positioning sleeves 11, and a guide assembly is arranged on the outer walls of the positioning sleeves 11; elastic balance assembly includes balancing piece 17 and expanding spring 19 No. two, guide assembly includes spacing support 12, an expanding spring 14 and direction lug 15, when using, drive piston body 1 reciprocating motion in the cylinder body by piston rod 2, go up scraper ring 6 and realize the frizing effect, strike off the fluid of cylinder body inner wall, piston rod 2 is when driving piston body 1 through piston pin 4 and remove, piston pin 4 must produce the shake, at this moment, elastic balance assembly can cushion the impact that the shake that piston pin 4 caused piston body 1, thereby guarantee the steady of piston body 1, in addition, guide assembly makes piston rod 2 can for piston pin 4 swing movement angle, and piston rod 2's swing range has been restricted, piston rod 2's left and right sides skew has also been avoided simultaneously, further guarantee the steady of piston body 1.
Specifically, according to fig. 1, fig. 3, and fig. 6, in this embodiment, the inner wall of the positioning sleeve 11 is provided with a second movable groove 18, one end of the balance weight 17 is embedded into the second movable groove 18, and the other end of the balance weight extends out of the second movable groove 18 and is overlapped with the outer wall of the piston pin 4, the second expansion spring 19 is distributed between the end face of the embedded end of the balance weight 17 and the bottom of the second movable groove 18, under the elastic force action of the second expansion spring 19, the balance weight 17 can stably overlap the outer wall of the piston pin 4, the shake can be transmitted to the balance weight 17 through the piston pin 4, and the second expansion spring 19 absorbs and consumes, so as to avoid the shake generated from being transmitted to the piston body 1.
Specifically, according to fig. 1, fig. 3, fig. 4 and fig. 5, in this embodiment, the limiting bracket 12 is an "L" shaped member, the horizontal end surface of the limiting bracket 12 is provided with a first movable groove 13, the outer wall of the piston connecting rod 2 is provided with a guide sliding groove 16 having an arc-shaped structure, one end of the guide protrusion 15 is embedded in the first movable groove 13, the other end of the guide protrusion 15 extends out of the first movable groove 13 and is embedded in the guide sliding groove 16, a first expansion spring 14 is distributed between the end surface of the embedded end of the guide protrusion 15 and the end wall of the first movable groove 13, when the piston connecting rod 2 drives the piston body 1 to reciprocate in the cylinder, the piston connecting rod 2 is allowed to rotate at a certain angle relative to the piston pin 4, the extending end of the guide protrusion 15 is stably embedded in the guide sliding groove 16 under the elastic force of the first expansion spring 14, when the piston connecting, the guide projection 15 slides along the guide runner 16.
Specifically, according to fig. 1, 3, 4 and 5, in the present embodiment, the protruding end of the guide protrusion 15 has a hemispherical structure, and the cross section of the guide chute 16 has a semicircular structure, which is adapted to the particle size of the piston rod 2 rotating relative to the piston pin 4.
Specifically, as shown in fig. 1 and 3, in this embodiment, the four guiding assemblies are diagonally arranged, so that the piston rod 2 is prevented from shifting left and right, and the stability of the piston body 1 is further ensured.
Specifically, as shown in fig. 1 and fig. 3, in this embodiment, four sets of elastic balance assemblies are arranged in each positioning sleeve 11, and the four sets of elastic balance assemblies are distributed in an annular shape at equal intervals, so that the parallel effect is good, the shake absorbing capability is strong, and the stability of the piston body 1 is ensured.
Specifically, according to fig. 1 and fig. 2, in this embodiment, an oil return groove 9 is further formed in an outer wall of the piston body 1, a plurality of oil return holes 10 are further formed in the piston body 1, the oil return holes 10 are distributed in an annular shape at equal intervals, and the oil return holes 10 enable an internal space of the piston body 1 to be communicated with the oil return groove 9; lower annular 7 has been seted up to lateral surface lower part at piston body 1, has distributed scraper ring 8 down in this lower annular 7, and when piston body 1 removed, scraper ring 8 also can produce the frizing effect down, and scraper ring 6 is gone up in the cooperation, and the fluid of scraping gets into oil gallery 9 and flows back to piston body 1 from oil gallery 10 in, reduces the air compressor machine oil blowby, accords with the environmental protection requirement.
The utility model discloses a theory of operation and use flow: the utility model discloses an automobile air compressor piston, when using, drive piston body 1 reciprocating motion in the cylinder body by piston rod 2, go up scraper ring 6 and realize the frizing effect, strike off the fluid of cylinder body inner wall, piston rod 2 is when driving piston body 1 through piston pin 4 and move, piston pin 4 will produce the shake certainly, at this moment, the impact that the shake of piston pin 4 caused to piston body 1 can be cushioned to the elasticity balance subassembly, thereby guarantee the steady of piston body 1, in addition, the direction subassembly makes piston rod 2 can be for piston pin 4 swing movement angle, and the swing range of piston rod 2 has been restricted, also avoided the left and right sides skew of piston rod 2 simultaneously, further guarantee the steady of piston body 1;
in embodiment 2, when piston body 1 removed, scraper ring 8 also can produce the frizing effect down, and scraper ring 6 in the cooperation, the fluid of scraping gets into oil gallery 9 and from oil gallery 10 backward flow to piston body 1 in, reduces the air compressor machine oil blowby, accords with the environmental protection requirement.
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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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 (7)
1. A durable automobile air compressor piston comprises a piston body (1), a piston connecting rod (2) and a piston pin (4), wherein a pin hole (3) is formed in the piston body (1), the top end of the piston connecting rod (2) is embedded into the piston body (1), and the piston pin (4) penetrates through the pin hole (3) and the embedded end of the piston connecting rod (2); annular (5) have been seted up on the lateral surface upper portion of piston body (1), be equipped with scraper ring (6) in this annular (5) of going up, its characterized in that: two symmetrically distributed positioning sleeves (11) are arranged in the pin hole (3), an elastic balance assembly is arranged on the inner wall of each positioning sleeve (11), and a guide assembly is arranged on the outer wall of each positioning sleeve (11); the elastic balance assembly comprises a balance block (17) and a second expansion spring (19), and the guide assembly comprises a limiting support (12), a first expansion spring (14) and a guide convex block (15).
2. The durable piston for the air compressor of the automobile as claimed in claim 1, wherein: a second movable groove (18) is formed in the inner wall of the positioning sleeve (11), one end of the balance block (17) is embedded into the second movable groove (18), the other end of the balance block extends out of the second movable groove (18) and is in lap joint with the outer wall of the piston pin (4), and the second expansion spring (19) is distributed between the end face of the embedded end of the balance block (17) and the bottom of the second movable groove (18).
3. The durable piston for the air compressor of the automobile as claimed in claim 1, wherein: spacing support (12) are "L" form component spacing support (12) the horizontal part terminal surface of spacing support (12) has seted up a movable groove (13) the guide chute (16) of circular-arc structure is seted up to the outer wall of piston connecting rod (2), the one end embedding of guide lug (15) is in a movable groove (13), the other end stretches out in a movable groove (13) and embedding guide chute (16), expanding spring (14) distribute be in the end terminal surface of embedding of guide lug (15) with between the groove end wall of a movable groove (13).
4. The durable piston of the air compressor for the automobile as claimed in claim 3, wherein: the extending end of the guide bump (15) is of a hemispherical structure, and the section of the guide chute (16) is of a semicircular structure.
5. The durable piston for the air compressor of the automobile as claimed in claim 1, wherein: the guide assembly is diagonally provided with four groups.
6. The durable piston for the air compressor of the automobile as claimed in claim 1, wherein: four groups of elastic balance assemblies are arranged in each positioning sleeve (11), and the four groups of elastic balance assemblies are distributed in an annular shape at equal intervals.
7. The durable piston for the air compressor of the automobile as claimed in claim 1, wherein: an oil return groove (9) is further formed in the outer wall of the piston body (1), a plurality of annular oil return holes (10) distributed at equal intervals are further formed in the piston body (1), and the oil return holes (10) enable the inner space of the piston body (1) to be communicated with the oil return groove (9); the lower part of the outer side surface of the piston body (1) is provided with a lower ring groove (7), and lower oil scraping rings (8) are distributed in the lower ring groove (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022323076.1U CN213540657U (en) | 2020-10-19 | 2020-10-19 | Durable automobile air compressor piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022323076.1U CN213540657U (en) | 2020-10-19 | 2020-10-19 | Durable automobile air compressor piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213540657U true CN213540657U (en) | 2021-06-25 |
Family
ID=76498110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022323076.1U Active CN213540657U (en) | 2020-10-19 | 2020-10-19 | Durable automobile air compressor piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213540657U (en) |
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2020
- 2020-10-19 CN CN202022323076.1U patent/CN213540657U/en active Active
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