CN205445950U - A piston for two -way ramp type compressor - Google Patents

Abstract

The utility model discloses a piston for a two-way inclined plate compressor. The piston comprises: two piston bodies oppositely arranged, and one end of the two piston bodies oppositely arranged is detachably connected through an elastic body; The two sliding shoes are respectively arranged at opposite ends of the two piston bodies. The utility model has the advantages of simple structure, convenient maintenance and low production cost, and reduces the impact of the sliding shoes on the piston body and the swash plate and the hidden danger of the piston being broken when the piston of the two-way swash plate compressor changes direction during operation, thereby reducing the The wear of the piston body and the swash plate improves the service life of the piston and the operation reliability of the compressor; at the same time, the overall structure of the piston is concentric, making the operation more stable and reliable.

Description

Pistons for bidirectional swash plate compressors

technical field

The utility model relates to a piston used for a two-way inclined plate compressor.

Background technique

At present, the two-way sloping plate compressor used in the air conditioning system uses an integral piston. Under normal assembly conditions, there is a gap between the pit of the piston and the sliding shoe and the sloping plate. Gradually increasing, when the piston changes direction, the impact of the sliding shoe on the swash plate and the piston body will also gradually increase, causing the swash plate and the piston body to wear sharply, resulting in a decrease in the reliability of the compressor.

Utility model content

The technical problem to be solved by the utility model is to overcome the impact of the sliding shoe in the piston of the traditional two-way swash plate compressor on the swash plate and the piston body, the sharp wear of the swash plate and the piston body, and the severe wear and tear of the compressor. To overcome defects such as low reliability, a piston for a two-way inclined plate compressor is provided.

The utility model solves the problems of the technologies described above through the following technical solutions:

A piston for a two-way inclined plate compressor, characterized in that the piston includes:

Two oppositely arranged piston bodies, one end of the two oppositely arranged piston bodies is detachably connected by an elastic body;

The two sliding shoes are respectively arranged at opposite ends of the two piston bodies.

In this scheme, the piston adopts a segmented structure, and the middle is connected by an elastic body, thereby reducing the hidden danger of the piston being broken when the piston of the two-way inclined plate compressor changes direction during operation, and improving the service life of the piston and the compressor. operational reliability.

In addition, the piston has a simple structure and is easy to maintain.

Preferably, the centerlines of the two piston bodies are located on the same straight line, and the two piston bodies are arranged symmetrically.

In this solution, the overall structure of the piston is concentric, making the operation more stable and reliable.

Preferably, each piston body includes:

Ontology;

a protruding portion extending outward from one end face of the body along the axial direction of the body, and an accommodating pit is provided on the end face of the protruding portion away from the body;

Wherein, the protruding parts of the two piston bodies are arranged oppositely, and the two sliding shoes are respectively arranged in the accommodation pits of the two piston bodies, and the two ends of the elastic body are respectively clamped in the two accommodating holes of the two piston bodies. protrusion of the piston body.

In this scheme, in the piston with a segmented structure, the outer circle and the accommodation pit of each piston body can be processed in one clamping on the CNC lathe, which reduces the impact of multiple clamping processes and reduces the production cost. Low, so that the concentricity of the piston body can be better guaranteed, so that the piston runs more smoothly and reliably.

Preferably, a hole is provided in each body, the axis of the hole coincides with the axis of the body, and one end of the hole communicates with the accommodating pit;

An elastic component is arranged in each hole, one end of the elastic component is fixed to one end of the hole, and the other end of the elastic component leans against the sliding shoe.

In this scheme, the sliding shoe is preloaded and buffered by the elastic part, thereby reducing the impact of the sliding shoe on the piston body and the swash plate when the piston changes direction, thereby reducing the wear of the piston body and the swash plate, and improving the compressor’s performance. It is reliable in use, reduces the noise of the compressor, and reduces the energy consumption of the compressor.

Preferably, the outer surface of each body has several grooves in the circumferential direction, and one end of each groove is aligned with an end of the body close to the protrusion;

Each body is provided with a lubricating oil hole, one end of the lubricating oil hole communicates with the corresponding groove, and the other end communicates with the corresponding hole.

In this solution, the arrangement of the lubricating oil hole enables the accommodating pit of the piston body to be fully lubricated, reduces wear and improves the service life of the piston body.

Preferably, the axis of the lubricating oil hole is perpendicular to the corresponding axis of the body.

Preferably, the elastic body is a snap spring.

Preferably, the outer surface of each protrusion of the piston body has an annular groove, and the elastic body includes:

Two snap rings arranged oppositely, each of the snap rings is snapped into the corresponding annular snap groove;

The connection part is connected between the two snap rings.

Preferably, the snap ring includes a ring body with an opening, the ring body is snapped into the corresponding annular locking groove, and the outer walls of the two ends of the ring body respectively extend outward with positioning blocks , each positioning block is provided with a positioning hole.

On the basis of conforming to common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain the preferred examples of the present utility model.

The positive progressive effect of the present utility model is:

(1) The piston adopts a segmented structure, which reduces the hidden danger of the piston being broken when the piston changes direction during operation of the two-way inclined plate compressor, and improves the service life of the piston and the operation reliability of the compressor;

(2) The overall structure of the piston is concentric, and the operation is more stable and reliable;

(3) In the piston with a segmented structure, the outer circle and the accommodation pit of each piston body can be processed in one clamping on the CNC lathe, which reduces the influence of multiple clamping processes, and the production cost is low. The concentricity of the piston body can be better guaranteed, so that the piston runs more smoothly and reliably;

(4) The sliding shoe is preloaded and buffered by the elastic part, thereby reducing the impact of the sliding shoe on the piston body and the swash plate when the piston changes direction, thereby reducing the wear of the piston body and the swash plate, and improving the reliability of the compressor. performance, and reduce the noise of the compressor, reducing the energy consumption of the compressor;

(5) The setting of the lubricating oil hole makes the accommodation pit of the piston body fully lubricated, reduces wear and tear, and improves the service life of the piston body.

Description of drawings

Fig. 1 is a schematic perspective view of the three-dimensional structure of a piston used in a two-way swash plate compressor according to a preferred embodiment of the present invention.

Fig. 2 is a schematic structural view of a piston used in a two-way swash plate compressor according to a preferred embodiment of the present invention.

Fig. 3 is a schematic cross-sectional structural diagram along A-A in Fig. 2 .

Fig. 4 is a schematic diagram of the three-dimensional structure of the piston body in Fig. 1 .

Fig. 5 is a schematic diagram of the internal structure of the piston body in Fig. 4 .

FIG. 6 is a schematic diagram of the three-dimensional structure of the elastic body in FIG. 1 .

Explanation of reference signs:

Piston body: 1 body: 11 protrusions: 12

Storage pit: 13 holes: 14 elastic parts: 15

Groove: 16 Lubricating oil hole: 17 Ring slot: 18

Elastomer: 2 Snap rings: 21 rings Body: 211

Opening: 212 Positioning block: 213 Positioning hole: 214

Connection part: 22

Slippers: 3

detailed description

A preferred embodiment is given below, and the utility model is described more clearly and completely in conjunction with the accompanying drawings.

In describing the present invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying No device or element must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the invention.

1-3 show a piston for a two-way swash plate compressor, the piston includes: two piston bodies 1 and two sliding shoes 3 arranged oppositely. Wherein, the opposite ends of the two piston bodies 1 are detachably connected by an elastic body 2 ; two sliding shoes 3 are respectively arranged at the opposite ends of the two piston bodies 1 .

In this embodiment, the piston adopts a segmented structure, the piston has a simple structure and is easy to maintain. And the middle is connected by an elastic body 2, thereby reducing the hidden danger of the piston being broken when the piston of the two-way inclined plate compressor changes direction during operation, and improving the service life of the piston and the operation reliability of the compressor.

In addition, the centerlines of the two piston bodies 1 are located on the same straight line, and the two piston bodies 1 are arranged symmetrically. The overall structure of the piston is concentric, making the operation more stable and reliable.

It should be understood that the segmented piston may have a symmetrical or asymmetrical structure, and may or may not have piston rings.

Please understand in conjunction with FIGS. 4-5 , each of the piston bodies 1 includes: a body 11 and a protruding portion 12 extending outward from one end of the body 11 along the axial direction of the body 11 , in the protruding portion 12 The end surface away from the body 11 has a receiving pit 13 . Wherein, the protrusions 12 of the two piston bodies 1 are arranged oppositely, and the two sliding shoes 3 are respectively arranged in the accommodation pits 13 of the two piston bodies 1, and the two ends of the elastic body 2 are respectively It is clamped on the protruding parts 12 of the two piston bodies 1 . Of course, in actual use, the shape of the accommodating pit 13 may be spherical.

In this embodiment, in the piston with segmented structure, the outer circle of each piston body 1 and the accommodating pit 13 can be processed in one clamping on the CNC lathe, which reduces the influence of multiple clamping processes , the production cost is low, so that the concentricity of the piston body 1 can be better guaranteed, so that the piston runs more smoothly and reliably.

As shown in FIG. 5 , each body 11 defines a hole 14 , the axis of the hole 14 coincides with the axis of the body 11 , and one end of the hole 14 communicates with the accommodating pit 13 . Each hole 14 is provided with an elastic component 15 , one end of the elastic component 15 is fixed to one end of the hole 14 , and the other end of the elastic component 15 is against the sliding shoe 3 . It should be understood that the elastic member 15 may be a spring.

In this embodiment, the sliding shoe 3 is preloaded and buffered by the elastic member 15, thereby reducing the impact of the sliding shoe 3 on the piston body 1 and the swash plate when the piston changes direction, thereby reducing the wear of the piston body 1 and the swash plate , improve the reliability of the compressor, reduce the noise of the compressor, and reduce the energy consumption of the compressor.

In addition, the outer surface of each body 11 has a plurality of grooves 16 along the circumference, and one end of each groove 16 is aligned with an end of the body 11 close to the protruding portion 12 . Each body 11 is provided with a lubricating oil hole 17 , one end of the lubricating oil hole 17 communicates with the corresponding groove 16 , and the other end communicates with the corresponding hole. In this way, the accommodating pit 13 of the piston body 1 can be fully lubricated, which reduces wear and improves the service life of the piston body 1 . Preferably, the axis of the lubricating oil hole 17 is perpendicular to the axis of the corresponding body 11 . And the outer surface of the protruding portion 12 of each piston body 1 has an annular locking groove 18 .

Please understand with reference to FIG. 6 , the elastic body 2 includes: two snap rings 21 and a connecting portion 22 disposed opposite to each other. Wherein, each snap ring 21 is clamped in the corresponding annular snap groove 18 ; the connecting portion 22 is connected between the two snap rings 21 . The connecting portion 22 is a plate-shaped structure.

Wherein, the snap ring 21 includes a ring body 211 having an opening 212 , and the ring body 211 is locked in the corresponding annular locking groove 18 . Moreover, positioning blocks 213 extend outward from the outer walls of both ends of the ring body 211 , and each positioning block 213 defines a positioning hole 214 . It should be understood that the elastic body 2 may also adopt a snap spring or other similar structures.

Although the specific implementation of the utility model has been described above, those skilled in the art should understand that this is only an example, and the protection scope of the utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principle and essence of the present utility model, but these changes and modifications all fall within the protection scope of the present utility model.

Claims (9)

1. the piston for double directional oblique-plate-type compressor, it is characterised in that described piston includes:

Two piston bodies being oppositely arranged, a detachable connection of elastomer is passed through in the one end being oppositely arranged in two described piston bodies；

Two crawler shoes, are respectively arranged in two described piston bodies the one end being oppositely arranged.

2. piston as claimed in claim 1, it is characterised in that the centrage of two described piston bodies is located along the same line, and two described piston bodies are symmetrical arranged.

3. piston as claimed in claim 1, it is characterised in that each described piston body includes:

Body；

Protuberance, the axis direction along described body stretches out from the end face of described body, and in described protuberance, the end face away from described body has accommodating hole；

Wherein, the protuberance of two described piston bodies is oppositely arranged, and two described crawler shoes are respectively arranged in the accommodating hole of two described piston bodies, and the two ends of described elastomer are arranged in the protuberance of two described piston bodies respectively.

4. piston as claimed in claim 3, it is characterised in that each described internal hole that offers, the dead in line of the axis in described hole and described body, and the one end in described hole are connected with described accommodating hole；

Being provided with an elastomeric element in each described hole, the one end in described hole is fixed in one end of described elastomeric element, and the other end of described elastomeric element is resisted against described crawler shoe.

5. piston as claimed in claim 4, it is characterised in that the outer surface of each described body circumferentially has some grooves, and align in one end of one end of each described groove described protuberance close with described body；

Offering oilhole in each described body, one end of described oilhole is connected with corresponding described groove, and the other end is connected with corresponding described hole.

6. piston as claimed in claim 5, it is characterised in that the axis of described oilhole is vertical with the axis of corresponding described body.

7. piston as claimed in claim 3, it is characterised in that described elastomer is jump ring.

8. piston as claimed in claim 3, it is characterised in that the outer surface of the protuberance of each described piston body has annular slot, and described elastomer includes:

Two snap rings being oppositely arranged, each described snap ring is arranged in corresponding described annular slot；

Connecting portion, is connected to described in two between snap ring.

9. piston as claimed in claim 8, it is characterized in that, described snap ring includes the ring body with an opening, described ring body is arranged in corresponding described annular slot, and the outside wall surface at the two ends of described ring body is outward extended with locating piece respectively, each described locating piece offers hole, location.