CN109595157A - Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor - Google Patents

Abstract

A kind of pump assembly turning the cylinder piston compressor provided by the invention and turn the cylinder piston compressor, turns the pump assembly of the cylinder piston compressor, comprising: shaft, including shaft body, and the axis inner hole in shaft body, axis inner hole is along the axially extending of shaft body；Shaft body has the axis auxiliary section cooperated with piston, and the periphery wall of axis auxiliary section has two the first planes being oppositely arranged, and shaft is moved back and forth relative to piston along the direction parallel with the first plane；At least one shafting oil hole is provided through between the hole wall of axis inner hole and the first plane；Piston, equipped with the shaft mounting hole for being suitable for passing through for shaft, the hole wall of shaft mounting hole has two the second planes being oppositely arranged, and the second plane is matched with the first plane of respective side；At least one shafting oil slot is set at least one first plane, and along the axially extending of shaft body, shafting oil slot is connected to shafting oil hole.The present invention can reduce the abrasion between shaft and piston to preferably being lubricated between shaft and piston.

Description

Turn the pump body structure of the cylinder piston compressor and turns the cylinder piston compressor

Technical field

The present invention relates to Compressor Technology fields, and in particular to a kind of pump body structure for turning the cylinder piston compressor and to turn cylinder living Fill in compressor.

Background technique

Turn the compressor that the cylinder piston compressor belongs to a kind of brand new, is substantially former using a kind of crosshead shoe structure Reason, a kind of compressor that piston compressor primary structure and rotor-type compressor primary structure are combined, and obtained.It is existing Turn in the cylinder piston compressor, including shaft, the piston being sheathed on outside shaft, and the cylinder being sheathed on outside piston；Refering to fig. 1, O1 For the shaft center of circle, O2 is the cylinder center of circle, and e is distance of center circle, and square is piston mass center.When shaft rotates, band piston carries out circumference Movement, piston are run within the scope of 0~e relative to the distance of cylinder axis, and at eccentric assembling, shaft passes through work for shaft and cylinder Plug drives cylinder rotation, and since shaft and cylinder are there are eccentric relationship, when operation, shaft and cylinder are revolved rotating around respective axle center Turn, relative to cylinder, piston is reciprocating, realizes gas compression.

Turn in the cylinder piston compressor in above-mentioned, shaft is equipped with the inner hole that axially extends, and radially extend to A few oil supplying hole, oil supplying hole are through to the periphery wall of shaft along the hole wall of inner hole, are supplied to shaft for what is entered from inner hole At the cooperation of piston, the movement between shaft and piston is lubricated.The lubrication of this form, between shaft and piston Lubricant effect than relatively limited.

Summary of the invention

Therefore, the technical problem to be solved in the present invention is that overcome it is in the prior art turn in the cylinder piston compressor shaft and The relatively limited defect of lubricant effect between piston, so that the lubricant effect provided between a kind of shaft and piston preferably turns The pump body structure of the cylinder piston compressor and turn the cylinder piston compressor.

The present invention provides a kind of pump body structure for turning the cylinder piston compressor, comprising:

Shaft, including shaft body, and the axis inner hole in the shaft body, axis of the axis inner hole along the shaft body To extension；The shaft body has the axis auxiliary section cooperated with the piston, and the periphery wall of the axis auxiliary section is opposite with two The first plane being arranged, the shaft are moved back and forth relative to the piston along the direction parallel with first plane；It is described At least one shafting oil hole is provided through between the hole wall of axis inner hole and first plane；

Piston, equipped with the shaft mounting hole for being suitable for passing through for the shaft, the hole wall of the shaft mounting hole has two-phase To the second plane of setting, second plane is matched with first plane of respective side；

At least one shafting oil slot is set at least one described first plane, and along the axially extending of the shaft body, institute Shafting oil slot is stated to be connected to the shafting oil hole.

The shafting oil slot extends to the other end by one end of first plane.

The shafting oil slot is linearly.

Multiple shafting oil holes are equipped between the hole wall of the axis inner hole and corresponding first plane.

At least one described shafting oil slot is respectively equipped in each first plane.

The shafting oil slot is respectively equipped in each first plane.

Shafting oil slot eccentric setting in first plane.

During the shaft drives the piston rotation, towards corresponding second plane in first plane The region of movement is that axis cooperates supporting region, is that axis cooperates non-bearing area, institute backwards to the region of corresponding second plane motion Shafting oil slot is stated in axis cooperation non-bearing area.

Shafting oil hole the radially extending along the shaft body.

Further include:

Cylinder is sheathed on outside the piston, and is equipped with the piston mounting holes for being suitable for installing the piston, and the piston is suitable for It is moved back and forth in the piston mounting holes relative to the cylinder；

Cylinder jacket, equipped with the cylinder installation cavity for being suitable for installing the cylinder, the cylinder is suitable in the cylinder installation cavity In relative to the cylinder jacket rotate.

The cylinder includes:

Cylinder ontology penetratingly offers the piston mounting holes on the peripheral wall of the cylinder ontology；

At least one cylinder oil guiding hole, the outer peripheral surface of the cylinder is extended through to by the hole wall of the piston mounting holes.

The cylinder jacket is equipped with the air entry being connected to the cylinder installation cavity, the cylinder oil guiding hole and the air-breathing Mouth is arranged in a staggered manner.

The piston is equipped with the shaft mounting hole for being suitable for passing through for the shaft, the piston and the cylinder oil guiding hole Corresponding side wall is equipped at least one oil outlet, and the oil outlet extends to the piston by the hole wall of the shaft mounting hole Outer peripheral surface.

Further include two end face fit structures, be respectively arranged on the both ends of the cylinder, and is connected in the cylinder jacket.

It further include at least one clearance structure, set on end face fit structure described at least one towards the end face of the cylinder On, or at least one end face of the cylinder and the cylinder jacket；The clearance structure includes at least one oil extraction Slot, the oil scupper are extended to the outer peripheral surface of the end face fit structure, Huo Zheyou by the inner peripheral surface of the end face fit structure The inner peripheral surface that the cylinder corresponds to the end face fit structure extends to the outer peripheral surface of the cylinder jacket.

The clearance structure is set at least one described end face fit structure towards on the end face of the cylinder, the oil extraction Slot is extended to the outer peripheral surface of the end face fit structure by the inner peripheral surface of the end face fit structure.

The clearance structure further includes at least one avoiding hollow groove, and the avoiding hollow groove prolongs along the circumferential direction of the end face fit structure It stretches, and is connected to the oil scupper.

Cylinder jacket is equipped with the exhaust outlet being connected to the cylinder installation cavity；The end face of the cylinder has the first auxiliary section, First auxiliary section has under the pressure effect of the exhaust ports towards the corresponding end face fit structure movement Trend；

The end face fit structure is towards being the at the position for corresponding to first auxiliary section on the one side of the cylinder Second auxiliary section of two auxiliary sections, at least one end face fit structure is equipped at least one head tank, the pressure Power slot is suitable for being passed through pressure oil and/or pressure gas so that first auxiliary section is moved towards the corresponding end face fit structure Trend reduce or eliminate.

The cylinder is equipped with shaft hole, the pump body structure further include:

At least one inner circle fit structure, the inner circle fit structure includes cooperation ontology, and ontology prolongs with described The boss stretched；The boss is suitable for stretching being placed in the shaft hole, and cooperates with the hole wall of the shaft hole；The cooperation Ontology is greater than the aperture of the shaft hole in the maximum length of the cylinder radially；The cylinder is relative to inner circle fit structure Rotation；

Inner circle cooperates oil guide groove, and the inner circle cooperation oil guide groove is set on the outer peripheral surface of the boss, remote by the boss One end from the cooperation ontology extends to the cooperation ontology；Alternatively, the inner circle cooperation oil guide groove is set to the shaft hole Hole wall on, the outer end face of the cylinder is extended to by the hole wall of the piston mounting holes.

It further include inner circle cooperation oil storage tank annular in shape, the inner circle cooperation oil storage tank is set to the outer peripheral surface of the boss And/or on the hole wall of the shaft hole；The inner circle cooperation oil storage tank and inner circle cooperation oil guide groove are far from the cooperation sheet One end of body is connected to.

The cooperation ontology is equipped with inner circle and cooperates outage, and the inner circle cooperation outage is to match axially through described The through-hole of ontology is closed, and is connected to inner circle cooperation oil guide groove far from one end of the piston mounting holes.

The cylinder includes cylinder ontology, and the protruding shaft to be extended outwardly by least one end of the cylinder ontology, described convex Axis is equipped with shaft hole and at least one protruding shaft oil guiding hole；The shaft hole is suitable for installation shaft；The protruding shaft oil guiding hole runs through The side wall of the protruding shaft, and be connected to the shaft hole；The pump body structure further include:

At least one outer circle fit structure, the outer circle fit structure are equipped with the matching hole for being adapted to fit into the protruding shaft；Institute The aperture for stating matching hole is less than the outer diameter of the cylinder；The cylinder is rotated relative to outer circle fit structure；

Outer circle cooperates oil guide groove, and the outer circle cooperation oil guide groove is set on the hole wall of the matching hole, by the matching hole One end of hole wall towards the cylinder ontology extend to one end far from the cylinder ontology；Alternatively, the outer circle cooperates oil guide groove On the outer peripheral surface of the protruding shaft, extended to by one end that the protruding shaft is connect with the cylinder ontology far from the cylinder ontology One end.

It further include outer circle cooperation oil storage tank annular in shape, the outer circle cooperation oil storage tank is set on the hole wall of the matching hole And/or on the outer peripheral surface of the protruding shaft；The outer circle cooperation oil storage tank and the outer circle cooperate oil guide groove towards the cylinder ontology One end connection.

The present invention also provides one kind to turn the cylinder piston compressor, including the above-mentioned pump body structure for turning the cylinder piston compressor.

Technical solution of the present invention has the advantages that

1. the pump body structure provided by the invention for turning the cylinder piston compressor, comprising: shaft, including shaft body, and it is set to institute The axis inner hole in shaft body is stated, the axis inner hole is along the axially extending of the shaft body；The shaft body has and the piston The periphery wall of the axis auxiliary section of cooperation, the axis auxiliary section has two the first planes being oppositely arranged, and the shaft is relative to institute Piston is stated to move back and forth along the direction parallel with first plane；It is passed through between the hole wall of the axis inner hole and first plane It wears and is equipped at least one shafting oil hole；Piston, equipped with the shaft mounting hole for being suitable for passing through for the shaft, the shaft mounting hole Hole wall there are two the second planes being oppositely arranged, second plane matches with first plane of respective side；At least One shafting oil slot is set at least one described first plane, and along the axially extending of the shaft body, the shafting oil slot and institute State the connection of shafting oil hole.By the way that at least one axially extending shafting oil slot along shaft body is arranged at least one first plane, The oil in axis inner hole can be made to flow in shafting oil slot by shafting oil hole, thus to preferably being lubricated between shaft and piston, The abrasion between shaft and piston is effectively reduced, the pump body structure and compressor of cylinder with this structure are improved Service life, while improving the reliability of pump body structure and compressor.

2. the pump body structure provided by the invention for turning the cylinder piston compressor, the shafting oil slot is linearly.It can make in this way Oil quickly diffusion in shafting oil slot, to realize to preferably being lubricated between shaft and piston.

3. the pump body structure provided by the invention for turning the cylinder piston compressor, it is respectively equipped at least in each first plane One shafting oil slot.It the plane to shaft two sides and can be lubricated between corresponding shaft mounting hole hole wall in this way, from And obtain better lubricant effect.

4. the pump body structure provided by the invention for turning the cylinder piston compressor, the shaft drive the process of the piston rotation In, cooperate supporting region towards the region of corresponding second plane motion in first plane for axis, backwards to corresponding institute The region for stating the second plane motion is that axis cooperates non-bearing area, and the shafting oil slot is set in axis cooperation non-bearing area.In this way The area for reducing axis cooperation supporting region can be prevented while the abundant fuel feeding between the first plane and the second plane, thus The stress of supporting region can be cooperated to increase to avoid axis, the abrasion being further reduced between shaft and piston.

Detailed description of the invention

It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor It puts, is also possible to obtain other drawings based on these drawings.

Fig. 1 is the schematic illustration of crosshead shoe structure；

Fig. 2 is the perspective exploded view of the pump body structure for turning the cylinder piston compressor provided in the embodiment of the present invention 1；

The shaft and three-dimensional group under piston mated condition that Fig. 3 is the pump body structure shown in Fig. 2 for turning the cylinder piston compressor Fill schematic diagram；

Fig. 4 is the stereoscopic schematic diagram of the shaft of the pump body structure shown in Fig. 2 for turning the cylinder piston compressor；

Fig. 5 is the schematic cross-sectional view of shaft shown in Fig. 3；

Fig. 6 is the schematic perspective view of the cylinder of the pump body structure shown in Fig. 2 for turning the cylinder piston compressor；

Fig. 7 is the schematic cross-sectional view under cylinder shown in fig. 6 and cylinder jacket mated condition；

Fig. 8 is the schematic perspective view of the piston of pump body structure shown in Fig. 2；

Fig. 9 is the schematic perspective view of the upper limit plate of the pump body structure shown in Fig. 2 for turning the cylinder piston compressor；

Figure 10 is the schematic cross-sectional view of the limit shown in Fig. 9；

Figure 11 is the schematic perspective view of the lower limiting board of the pump body structure shown in Fig. 2 for turning the cylinder piston compressor；

Figure 12 is the schematic cross-sectional view of the limit shown in Figure 11；

Figure 13 is the stereoscopic schematic diagram of the lower flange of the pump body structure shown in Fig. 2 for turning the cylinder piston compressor；

Figure 14 is the schematic cross-sectional view of lower flange shown in Figure 13；

Figure 15 is the schematic cross-sectional view under the assembled state of the pump body structure shown in Fig. 2 for turning the cylinder piston compressor；

Figure 16 is the enlarged diagram of a-quadrant in Figure 15；

Figure 17 is the solid of the upper limit plate of the pump body structure shown in Fig. 2 for turning the cylinder piston compressor removed after avoiding hollow groove Schematic diagram；

Figure 18 is the schematic cross-sectional view of upper limit plate shown in Figure 17；

Figure 19 is the enlarged diagram of B area in Figure 15；

Figure 20 is the schematic cross-sectional view of the pump body structure for turning the cylinder piston compressor provided in the embodiment of the present invention 2；

Figure 21 is the elevational schematic view of the upper flange of pump body structure shown in Figure 20；

Figure 22 is the schematic cross-sectional view of upper flange shown in Figure 21；

Figure 23 is the schematic top plan view of the lower limiting board of pump body structure shown in Figure 20；

Figure 24 is the schematic cross-sectional view of lower limiting board shown in Figure 23；

Description of symbols:

1- shaft, 11- shaft body, the first plane of 111-, 12- axis inner hole, 13- shafting oil hole, 14- shafting oil slot,

2- piston, 21- shaft mounting hole, the second plane of 22-, 23- oil outlet,

3- cylinder, 31- piston mounting holes, 32- cylinder ontology, 321- cylinder side wall, 33- cylinder oil guiding hole, 34- shaft hole, 35- Protruding shaft, the first auxiliary section 36-,

4- cylinder jacket, 41- cylinder installation cavity,

51- upper limit plate, 52- lower limiting board,

61- oil scupper, 62- avoiding hollow groove,

71- upper flange, 711- matching hole, 72- lower flange, 721- cooperation ontology, 722- boss,

81- inner circle cooperates oil guide groove, and 82- inner circle cooperates oil storage tank, and 83- inner circle cooperates chamfering, and 84- inner circle cooperates oil extraction Hole, 85- fuel feed hole,

91- outer circle cooperation oil guide groove, 92- outer circle cooperation oil storage tank, 93- groove,

The second auxiliary section 10-, 20- head tank.

Specific embodiment

Technical solution of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill Personnel's every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.

As long as in addition, the non-structure each other of technical characteristic involved in invention described below different embodiments It can be combined with each other at conflict.

Embodiment 1

As Figure 2-Figure 5, the present embodiment provides a kind of pump body structures for turning 2 compressor of the cylinder piston, including shaft 1, work Fill in 2, shafting oil slot 14, cylinder 3, cylinder jacket 4.

Shaft 1 is installed in piston 2, and including shaft body 11, and the axis inner hole 12 in shaft body 11, axis inner hole 12 Along the axially extending of shaft body 11；Shaft body 11 has the axis auxiliary section cooperated with piston 2, and the periphery wall of axis auxiliary section has two The first plane 111 being oppositely arranged, shaft 1 are moved back and forth relative to piston 2 along the direction parallel with the first plane 111；In axis Multiple shafting oil holes 13 are provided through between the hole wall in hole 12 and the first plane 111.Shaft 1 and 3 eccentric setting of cylinder.As can The embodiment of transformation can also be provided only with a shafting oil hole 13 between the hole wall of axis inner hole 12 and corresponding first plane 111.

Piston 2 is installed in cylinder 3, and is equipped with the shaft mounting hole 21 for being suitable for passing through for shaft 1, shaft mounting hole 21 Hole wall has two the second planes 22 being oppositely arranged, and the second plane 22 is matched with the first plane 111 of respective side.

There are two the tools of shafting oil slot 14, is respectively arranged in two the first planes 111, and along axially extending, the axis of shaft body 11 Oil groove 14 is connected to shafting oil hole 13.In this way can the plane to 1 two sides of shaft and between corresponding 21 hole wall of shaft mounting hole into Row lubrication, to obtain better lubricant effect.As disposable embodiment, shafting oil slot 14 can also only have one, It is located therein in first plane 111.As disposable embodiment, it is also possible to there are four the tools of shafting oil slot 14, each Two shafting oil slots 14 are respectively equipped in first plane 111.

Cylinder jacket 4 is set to outside piston 2, and is equipped with the piston mounting holes 31 for being suitable for installing piston 2, and piston 2 is suitable in piston It is moved back and forth in mounting hole 31 relative to cylinder 3.

Cylinder jacket 4 is equipped with the cylinder installation cavity 41 for being suitable for installing cylinder 3, and cylinder 3 is suitable for opposite in cylinder installation cavity 41 It is rotated in cylinder jacket 4.

Shaft 1 rotates, so that piston 2 is moved back and forth relative to cylinder 3, and cylinder 3 is driven to rotate relative to cylinder jacket 4.

By the way that at least one axially extending shafting oil slot along shaft body 11 is arranged at least one first plane 111 14, the oil in axis inner hole 12 can be made to flow in shafting oil slot 14 by shafting oil hole 13, to carry out between shaft 1 and piston 2 Preferably lubrication, effectively reduces the abrasion between shaft 1 and piston 2, improves the pump housing of the cylinder 3 with this structure The service life of structure and compressor, while improving the reliability of pump body structure and compressor.

The specific length of shafting oil slot 14 is unrestricted, and in the present embodiment, shafting oil slot 14 is prolonged by one end of the first plane 111 Extend to the other end.

The concrete shape of shafting oil slot 14 can there are many, shafting oil slot 14 in the present embodiment is linearly.It can make in this way Oil quickly diffusion in shafting oil slot 14, is preferably lubricated to realize between shaft 1 and piston 2.As disposable Embodiment, shafting oil slot 14 can also be in arcuation or wavy equal curve-likes.

Shafting oil slot 14 the specific location in the first plane 111 can there are many, in the present embodiment, shafting oil slot 14 is Eccentric setting in one plane 111.As disposable embodiment, shafting oil slot 14 can also be set to the center of the first plane 111.

Specifically, it during shaft 1 is rotated with piston 2, is transported in the first plane 111 towards corresponding second plane 22 Dynamic region is that axis cooperates supporting region, and the region backwards to the movement of corresponding second plane 22 is that axis cooperates non-bearing area, shafting oil slot 14 are set in axis cooperation non-bearing area.In this way can while the abundant fuel feeding between the first plane 111 and the second plane 22, It prevents from reducing the area of axis cooperation supporting region, so as to avoid the stress of axis cooperation supporting region from increasing, is further reduced shaft 1 With the abrasion between piston 2.

The specific set-up mode in shafting oil hole 13 can there are many, the radial direction of shafting oil hole 13 in the present embodiment along shaft body 11 Extend.

As shown in Fig. 2, Fig. 6-Fig. 8, in the pump body structure provided in this embodiment for turning 2 compressor of the cylinder piston, cylinder 3 includes Cylinder ontology and at least one cylinder oil guiding hole 33.

Piston mounting holes 31 are penetratingly offered on the peripheral wall of cylinder ontology.

Cylinder oil guiding hole 33 is extended through to the outer peripheral surface of cylinder 3 by the hole wall of piston mounting holes 31.

By setting at least one cylinder oil guiding hole 33 on cylinder ontology, the oil in piston mounting holes 31 can be made to pass through cylinder Oil guiding hole 33 flow to 3 outer peripheral surface of cylinder, to be lubricated between cylinder 3 and cylinder jacket 4, effectively reduce cylinder 3 with The abrasion generated between cylinder jacket 4 improves the pump body structure of the cylinder 3 with this structure and the service life of compressor, The reliability of pump body structure and compressor is improved simultaneously.

The specific extension mode of cylinder oil guiding hole 33 can there are many, in the present embodiment, cylinder oil guiding hole 33 is along cylinder sheet Body radially extends.

The concrete shape of cylinder oil guiding hole 33 is unrestricted, and the cylinder oil guiding hole 33 in the present embodiment is linearly.As Disposable embodiment, cylinder oil guiding hole 33 can also be in arcuation or wavy equal curve-likes.

In the present embodiment, the peripheral wall of cylinder ontology is separated into two opposite cylinder side walls by piston mounting holes 31, in order to can be with So that more balanced in the circumferential to the lubrication between cylinder 3 and cylinder jacket 4, each cylinder side wall is equipped at least one cylinder Oil Guide Hole 33.As disposable embodiment, cylinder oil guiding hole 33 can also be only set on a cylinder side wall.

33 quantity of cylinder oil guiding hole being arranged on each cylinder side wall with no restrictions, in the present embodiment, on each cylinder side wall If there are two cylinder oil guiding holes 33.As disposable embodiment, it is also possible to each cylinder side wall equipped with one or three Cylinder oil guiding hole 33.

Cylinder oil guiding hole 33 the specific location on cylinder side wall can there are many, in order to make to cylinder 3 and cylinder Lubrication between set 4 is more balanced in the axial direction, and in the present embodiment, two cylinder oil guiding holes 33 on each cylinder side wall are set respectively In the both ends of cylinder side wall.

In the present embodiment, cylinder jacket 4 is equipped with the air entry being connected to cylinder installation cavity 41, cylinder oil guiding hole 33 and suction Port is arranged in a staggered manner.Due to being usually high pressure at cylinder oil guiding hole 33, and at air entry it is usually low pressure, so by cylinder Oil Guide Hole 33 and air entry are arranged in a staggered manner, and the oil that can be effectively prevented in cylinder oil guiding hole 33 is leaked to air entry, further ensure that profit The performance of sliding effect and compressor.

In order to reduce the abrasion generated between piston 2 and cylinder 3, in the present embodiment, as shown in figure 8, piston 2 is equipped with Suitable for the shaft mounting hole 21 passed through for shaft 1, it is fuel-displaced that the side wall corresponding with cylinder oil guiding hole 33 of piston 2 is equipped at least one Hole 23, oil outlet 23 are extended to the outer peripheral surface of piston 2 by the hole wall of shaft mounting hole 21.Oil outlet 23 is set on the piston 2, it can So that the oil in shaft mounting hole 21 flow to 2 outer peripheral surface of piston by oil outlet 23, to carry out between piston 2 and cylinder 3 Lubrication, effectively reduces the abrasion generated between piston 2 and cylinder 3, improves the service life of pump body structure and compressor And reliability.

In order to effectively prevent the oil flowed out by oil outlet 23 directly to flow out from cylinder oil guiding hole 33, and then ensure to piston 2 Sufficient lubrication is carried out between cylinder 3, the oil outlet 23 in the present embodiment is arranged in a staggered manner with cylinder oil guiding hole 33.

In the present embodiment, at least one is respectively equipped in the two opposite side walls corresponding with cylinder oil guiding hole 33 of piston 2 to go out Oilhole 23.It can make so more balanced in the circumferential to the lubrication between piston 2 and cylinder 3.

The particular number of oil outlet 23 with no restrictions, in the present embodiment, the two-phase corresponding with cylinder oil guiding hole 33 of piston 2 To being respectively equipped with an oil outlet 23 on side wall.As disposable embodiment, piston 2 corresponding with cylinder oil guiding hole 33 two Two or three oil outlets 23 can also be respectively equipped in opposing sidewalls.

Oil outlet 23 the specific location on 2 side wall of piston can there are many, oil outlet 23 in the present embodiment, which is located at, lives In the middle part of the side wall of plug 2.As disposable embodiment, oil outlet 23 can also be located on the upper side or inclined in the middle part of the side wall of piston 2 Under position.

It further include two in the pump body structure provided in this embodiment for turning 2 compressor of the cylinder piston as shown in Fig. 2, Fig. 9-Figure 12 A end face fit structure and at least one clearance structure.

Two end face fit structures are respectively arranged on the both ends of cylinder 3, and are connected in cylinder jacket 4.

Clearance structure is set at least one end face fit structure towards on one end of the end face of cylinder 3, and clearance structure includes At least one oil scupper 61, oil scupper 61 are extended to the outer peripheral surface of end face fit structure by the inner peripheral surface of end face fit structure.

By setting at least one oil scupper 61 at least one end face fit structure, and oil scupper 61 is tied with end face The inner peripheral surface of structure extends to the outer peripheral surface of end face fit structure, and the oil in cylinder installation cavity 41 can be made to enter oil scupper 61 In, during rotation, oil is under the action of the centrifugal force in oil scupper 61 by the inner circumferential surface current of the end face fit structure for cylinder 3 To the outer peripheral surface of the end face fit structure, meanwhile, the end face of cylinder 3 is constantly inswept oil scupper 61, oil is supplied to cylinder 3 and end Each position between the fit structure of face effectively reduces cylinder to sufficient lubrication is carried out between cylinder 3 and end face fit structure Abrasion between 3 and end face fit structure improves the service life and reliability of pump body structure and compressor.

As disposable embodiment, it is also possible to clearance structure at least one end face of 3 component of cylinder, Oil scupper 61 is extended to the outer peripheral surface of cylinder jacket 4 by the inner peripheral surface of 3 corresponding end surface fit structure of cylinder.

In the present embodiment, one end of end face of each end face fit structure towards cylinder 3 is equipped at least one empty avoiding knot Structure.It can make adequately to be lubricated between cylinder 3 and the end face fit structure at both ends in this way, more efficiently reduce gas Abrasion between cylinder 3 and end face fit structure further improves the service life and reliability of pump body structure and compressor. As disposable embodiment, clearance structure only can also be set on an end face fit structure.

The clearance structure quantity being arranged on each end face fit structure is unrestricted, and in the present embodiment, each end face is matched The one end for closing structure towards the end face of cylinder 3 is equipped with a clearance structure.As disposable embodiment, each end face cooperation One end of structure towards the end face of cylinder 3 can also be equipped with two or three clearance structures.

The concrete shape of oil scupper 61 can there are many, oil scupper 61 in the present embodiment is linearly.As convertible Embodiment, oil scupper 61 can also be in arcuation or wavy equal curve-likes.

Specific extension mode of the oil scupper 61 on the fit structure of end face with no restrictions, in the present embodiment, oil scupper 61 Along radially extending for end face fit structure.

With no restrictions, the clearance structure in the present embodiment includes an oil extraction to 61 particular number of oil scupper in clearance structure Slot 61.As disposable embodiment, clearance structure also may include two or three oil scuppers 61.

In the present embodiment, clearance structure further includes at least one avoiding hollow groove 62, and avoiding hollow groove 62 is along end face fit structure Circumferentially extending, and be connected to oil scupper 61.The setting of avoiding hollow groove 62, on the one hand can be between cylinder 3 and end face fit structure It is more fully lubricated, on the other hand, it is possible to reduce the contact area between cylinder 3 and end face fit structure end face, from And reduce friction loss, abrasion is reduced, meanwhile, the frictional heat between cylinder 3 and end face fit structure can also pass through avoiding hollow groove 62 and oil scupper 61 in oil discharge.As disposable embodiment, avoiding hollow groove 62 can also be set on the end face of cylinder 3, And along the circumferentially extending of cylinder 3.

The concrete shape of avoiding hollow groove 62 can there are many, avoiding hollow groove 62 in the present embodiment is annular in shape.It in this way can be to gas It is more fully lubricated between cylinder 3 and end face fit structure.As disposable embodiment, avoiding hollow groove 62 can also be in Semicircular or major arc shape etc..

In clearance structure the particular number of avoiding hollow groove 62 can there are many, can flexible choice according to demand.In this implementation In example, clearance structure includes multiple avoiding hollow grooves 62, and multiple avoiding hollow grooves 62 are distributed along the spaced radial of end face fit structure.As Disposable embodiment, clearance structure can also only include an avoiding hollow groove 62.

Specific location of the avoiding hollow groove 62 on the fit structure of end face is unrestricted, and in the present embodiment, avoiding hollow groove 62 is close The inner peripheral surface of end face fit structure is arranged.

The concrete form of two end face fit structures can there are many, in the present embodiment, two end face fit structures can To be limit plate, and respectively upper limit plate 51 and lower limiting board 52.As disposable embodiment, it is also possible to two A end face fit structure is flange.As disposable embodiment, it is also possible that an end face fit structure is limit Plate, another end face fit structure are flange.

Realize cylinder 3 cooperate concrete mode can there are many, can according to the specific different structure form of cylinder 3, and Carry out flexible setting.For example, when cylinder 3 includes cylinder ontology and two protruding shaft (i.e. usually said short axles), the both ends of cylinder 3 It can realize that inner circle cooperates by upper and lower flange 72 respectively, can also realize that outer circle is matched by upper and lower limits plate 52 respectively It closes, inside and outside circle can be passed through respectively with every end while being cooperated, can also be cooperated simultaneously with one end by inside and outside circle, the other end passes through interior The cooperation of round or outer circle；When cylinder 3 includes cylinder ontology and a protruding shaft, it is real that one end of the not no protruding shaft of cylinder 3 can pass through flange Existing inner circle cooperation has one end of protruding shaft that can realize inner circle cooperation by flange or realize outer circle cooperation by limit plate；Work as gas Cylinder 3 only includes cylinder ontology, when both ends do not set protruding shaft, generally the both ends of cylinder 3 can be carried out inner circle cooperation by flange.

In the present embodiment, cylinder 3 includes cylinder ontology, and cylinder 3 includes cylinder ontology, and outside by the both ends difference of cylinder ontology The protruding shaft extended, wherein lower end carries out inner circle cooperation by lower flange 72 at protruding shaft, and upper end passes through the upper limit at protruding shaft Position plate 51 carries out outer circle cooperation.

In the pump body structure provided in this embodiment for turning 2 compressor of the cylinder piston, including two limit plates and two flanges, two A limit plate is respectively upper limit plate 51 and lower limiting board 52, and two flanges are respectively upper flange 71 and lower flange 72.Wherein, on Limit plate 51 is set between 3 upper end of upper flange 71 and cylinder, and lower limiting board 52 is set between 3 lower end of lower flange 72 and cylinder.On Limit plate 51 is used to carry out outer circle cooperation with the upper end of cylinder 3, carries out outer circle bearing to cylinder 3；Lower flange 72 is used for and cylinder 3 Lower end carry out inner circle cooperation, to cylinder 3 carry out inner circle bearing.Upper flange 71 and lower limiting board 52 be then used to realize it is common with Assembly limit between cylinder 3.

As shown in Fig. 2, Figure 13-Figure 16, in the pump body structure provided in this embodiment for turning 2 compressor of the cylinder piston, further include Inner circle fit structure and inner circle cooperate oil guide groove 81.

Cylinder 3 is equipped with shaft hole 34, and shaft hole 34 is axially through cylinder 3 and is suitable for installation shaft 1, piston mounting holes 31 Through cylinder 3 side wall and be suitable for installation piston 2.

Inner circle fit structure has one, set on the lower end of cylinder 3, including cooperation ontology 721, and ontology 721 with The boss 722 extended；Boss 722 is suitable for stretching being placed in shaft hole 34, and cooperates with the hole wall of shaft hole 34；Cooperate ontology 721 are greater than the aperture of shaft hole 34 in the maximum length of cylinder 3 radially；Cylinder 3 is rotated relative to inner circle fit structure.As Disposable embodiment, inner circle fit structure also can have two, be respectively arranged on the both ends of cylinder 3.

Inner circle cooperates oil guide groove 81 to be set on the outer peripheral surface of boss 722, from one end of the ontology 721 far from of boss 722 Extend to cooperation ontology 721.As disposable embodiment, it is also possible to inner circle cooperation oil guide groove 81 and is set to shaft hole 34 Hole wall on, and extend to by the hole wall of piston mounting holes 31 outer end face of cylinder 3.

Cooperate oil guide groove 81 by the way that inner circle is arranged on the hole wall of the outer peripheral surface of boss 722 or shaft hole 34, and inner circle is matched Closing oil guide groove 81, one end of ontology 721 far from extends to cooperation ontology 721 from boss 722, or by piston mounting holes 31 Hole wall extends to the outer end face of cylinder 3, and the oil sprayed in 1 rotation process of shaft can be made to enter inner circle cooperation oil guide groove 81 In, to be lubricated between the outer peripheral surface to boss 722 and the hole wall of shaft hole 34, effectively reduces cylinder 3 and match with inner circle The abrasion between structure is closed, the service life and reliability of pump body structure and compressor are improved.

Cooperate ontology 721 concrete shape can there are many, in the present embodiment, cooperation ontology 721 is cylindrical, and outer Diameter is greater than the aperture of shaft hole 34.As disposable embodiment, cooperates ontology 721 or cross section is in the column of rectangle Body.

Inner circle cooperate oil guide groove 81 concrete shape can there are many, inner circle in the present embodiment cooperation oil guide groove 81 is in spiral shell Revolve shape.The inner circle of this structure type cooperates oil guide groove 81, can make the oil in inner circle cooperation oil guide groove 81 to boss 722 outside Lubrication between circumferential surface and the hole wall of shaft hole 34 is more abundant.As disposable embodiment, inner circle cooperates oil guide groove 81 Can be linearly, along the axially extending of boss 722.

In order to cooperate flowing oily in oil guide groove 81 to provide power, oil in enhancing inner circle cooperation oil guide groove 81 for inner circle Mobility, and then enhance lubricant effect, in the present embodiment, inner circle cooperate oil guide groove 81 rotation direction and cylinder 3 rotation side Relationship between meets, when cylinder 3 is rotated relative to inner circle fit structure, the oil one that is applied in inner circle cooperation oil guide groove 81 A component towards cooperation ontology 721.Specifically, the rotation direction of inner circle cooperation oil guide groove 81 and cylinder 3 cooperate relative to inner circle ties Structure rotates contrary.As disposable embodiment, when inner circle cooperation oil guide groove 81 is set on the hole wall of shaft hole 34 It is that then the rotation direction of preferred inner circle cooperation oil guide groove 81 is identical as the direction that cylinder is rotated relative to inner circle fit structure.

What is provided in the present embodiment turns the pump body structure of 2 compressor of the cylinder piston, further includes inner circle cooperation oil storage annular in shape Slot 82, inner circle cooperate oil storage tank 82 to be set on the outer peripheral surface of boss 722, and with inner circle cooperation oil guide groove 81 far from cooperation ontology 721 one end connection.It can guarantee the supply of the oil at the one end of inner circle cooperation oil guide groove 81 far from cooperation ontology 721 in this way, So that it is guaranteed that can be implemented effectively to lubricate between 722 outer peripheral surface of boss and the hole wall of shaft hole 34.As convertible Embodiment, inner circle cooperate oil storage tank 82 can also be set to shaft hole 34 hole wall on.It is interior as disposable embodiment Circle cooperation oil storage tank 82 can also be simultaneously on the outer peripheral surface of boss 722 and on the hole wall of shaft hole 34.

Inner circle cooperate oil storage tank 82 specific generation type can there are many, in the present embodiment, boss 722 far from cooperation One end of ontology 721 is equipped with inner circle and cooperates chamfering 83, forms inner circle between inner circle cooperation chamfering 83 and the hole wall of shaft hole 34 and matches Close oil storage tank 82.As disposable embodiment, it is also possible to shaft hole 34 towards one end of piston mounting holes 31 equipped with interior Circle cooperation chamfering 83, inner circle, which cooperates, forms inner circle cooperation oil storage tank 82 between chamfering 83 and the outer peripheral surface of boss 722.As variable The embodiment changed, it is also possible that boss 722, which is equipped with inner circle far from one end of cooperation ontology 721, cooperates chamfering 83, while shaft One end of hole 34 towards piston mounting holes 31 also is provided with inner circle cooperation chamfering 83；Inner circle on boss 722 cooperates chamfering 83 and turns Inner circle between the hole wall of axis hole 34 and on shaft hole 34 cooperates between chamfering 83 and the outer peripheral surface of boss 722, is collectively formed interior Circle cooperation oil storage tank 82, also that is, forming the inner circle cooperation oil storage tank 82 between two inner circle cooperation chamferings 83.

In the present embodiment, cooperation ontology 721 is equipped with inner circle cooperation outage 84, and inner circle cooperates outage 84 to be along axis It is connected to the through-hole through cooperation ontology 721, and with inner circle cooperation oil guide groove 81 far from one end of piston mounting holes 31.Inner circle is matched The setting of outage 84 is closed, inner circle can be cooperated the oil in oil guide groove 81 be expelled in the oil sump of compressor immediately, thus shape At oil circulation, the oil in inner circle cooperation oil guide groove 81 can take away the outer peripheral surface and shaft hole 34 of the boss 722 of absorption in real time Hole wall between frictional heat, reduce the friction constituted between the outer peripheral surface of boss 722 and the hole wall of the shaft hole 34 of cylinder 3 Secondary temperature, improves the reliability of compressor.

During shaft 1 drives cylinder 3 to rotate, the region that the outer peripheral surface of cylinder 3 towards corresponding boss 722 moves, And the outer peripheral surface of boss 722 region corresponding with the region, cooperate supporting region for cylinder 3；Cylinder 3 is backwards to corresponding boss 722 Outer peripheral surface movement region and boss 722 outer peripheral surface region corresponding with the region, be cylinder 3 cooperation non-bearing area.

Inner circle cooperate oil guide groove 81 the specific location on boss 722 can there are many, in the present embodiment, inner circle cooperation Oil guide groove 81 is set to cylinder 3 and cooperates in non-bearing area.Since cylinder 3 cooperates the outer peripheral surface and shaft hole of boss 722 at supporting region Friction between 34 hole wall is bigger, inner circle cooperation oil guide groove 81 setting is cooperated in non-bearing area in cylinder 3, it is ensured that gas Cylinder 3 cooperates the continuity of lubricating oil film at supporting region, so that it is guaranteed that lubrication zone has preferable lubricant effect, reduces cylinder 3 and matches The abrasion at supporting region is closed, and then sufficiently reduces the mill between the outer peripheral surface of boss 722 and the hole wall of the shaft hole 34 of cylinder 3 Damage, while also having the effect of preventing cylinder 3 from stress at supporting region being cooperated to concentrate.

In the present embodiment, cylinder 3 includes cylinder ontology, and the protruding shaft to be extended outwardly respectively by the both ends of cylinder ontology, Hole wall of the shaft hole 34 at protruding shaft is matched with the outer peripheral surface of inner circle fit structure.It, can also as disposable embodiment To be, only extending in one end of cylinder ontology has protruding shaft.As disposable embodiment, it is also possible that the both ends of cylinder ontology Protruding shaft is not set.

What is provided in the present embodiment turns the pump body structure of 2 compressor of the cylinder piston, further include set on cooperation ontology 721 on into Oilhole 85, fuel feed hole 85 are arranged axially through cooperation ontology 721, and close to boss 722.

The specific constructive form of inner circle fit structure can there are many, inner circle fit structure in the present embodiment is lower flange 72。

As shown in Fig. 2, Figure 15 and Figure 17-Figure 19, in the pump body structure provided in this embodiment for turning 2 compressor of the cylinder piston, It further include outer circle fit structure and outer circle cooperation oil guide groove 91.

Cylinder ontology is equipped with piston mounting holes 31.Protruding shaft is equipped with shaft hole 34 and at least one protruding shaft oil guiding hole；Shaft Hole 34 is suitable for installation shaft 1；Protruding shaft oil guiding hole runs through the side wall of protruding shaft, and is connected to shaft hole 34.

Outer circle fit structure has one, set on the upper end of cylinder 3, equipped with the matching hole 711 for being adapted to fit into protruding shaft；Cooperation The aperture in hole 711 is less than the outer diameter of cylinder 3；Cylinder 3 is rotated relative to outer circle fit structure.As disposable embodiment, Outer circle fit structure also can have two, be respectively arranged on the both ends of cylinder 3.

Outer circle cooperates oil guide groove 91 to be set on the hole wall of matching hole 711, by the hole wall of matching hole 711 towards the one of cylinder ontology End extends to one end far from cylinder ontology；Alternatively, outer circle cooperation oil guide groove 91 is set on the outer peripheral surface of protruding shaft, by protruding shaft and cylinder sheet One end of body connection extends to one end far from cylinder ontology.

By being equipped at least one protruding shaft oil guiding hole in protruding shaft, the oil allotted in 1 rotation process of shaft can be exported To protruding shaft outer peripheral surface and matching hole 711 hole wall between；Meanwhile by the hole wall of matching hole 711 or the periphery of protruding shaft Outer circle is set on face and cooperates oil guide groove 91, and outer circle cooperation oil guide groove 91 by the hole wall of the matching hole 711 towards the cylinder sheet One end of body extends to one end far from the cylinder ontology, or is extended to far by one end that the protruding shaft is connect with the cylinder ontology One end from the cylinder ontology can be such that the oil sprayed at protruding shaft oil guiding hole in 1 rotation process of shaft enters with outer circle In oil guide groove 91, to be lubricated between the outer peripheral surface to protruding shaft and the hole wall of matching hole 711, effectively reduce cylinder 3 with Abrasion between outer circle fit structure improves the service life and reliability of pump body structure and compressor.

Outer circle cooperate oil guide groove 91 concrete shape can there are many, in the present embodiment, outer circle cooperation oil guide groove 91 be in Linearly, and along the axially extending of the axial direction of matching hole 711 or protruding shaft.As disposable embodiment, outer circle cooperates Oil Guide Slot 91 can also in the shape of a spiral, and the relationship between the rotation direction of outer circle cooperation oil guide groove 91 and the rotation direction of cylinder 3 meets, gas When cylinder 3 is rotated relative to outer circle fit structure, it is applied to the component of oil one separate cylinder ontology in outer circle cooperation oil guide groove 91.

With no restrictions, the protruding shaft oil guiding hole in the present embodiment is arranged the specific location of protruding shaft oil guiding hole close to cylinder ontology.

The particular number of protruding shaft oil guiding hole can there are many, in the present embodiment, there are two protruding shaft oil guiding hole tools, and convex It is oppositely arranged on axis.As disposable embodiment, protruding shaft oil guiding hole can also only have one.As disposable implementation Mode, protruding shaft oil guiding hole also can have three or four etc., and the circumferential direction along protruding shaft is uniformly distributed.

What is provided in the present embodiment turns the pump body structure of 2 compressor of the cylinder piston, further includes outer circle cooperation oil storage annular in shape Slot 92, outer circle cooperate oil storage tank 92 to be set on the hole wall of matching hole 711, and cooperate oil guide groove 91 towards the one of cylinder ontology with outer circle End connection.It can guarantee the supply that outer circle cooperates oil guide groove 91 towards the oil at cylinder ontology one end in this way, so that it is guaranteed that can be right Implemented effectively to lubricate between the outer peripheral surface of protruding shaft and the hole wall of matching hole 711.As disposable embodiment, outer circle Cooperate oil storage tank 92 that can also be set on the outer peripheral surface of protruding shaft.As disposable embodiment, outer circle cooperates oil storage tank 92 also It can be simultaneously on the hole wall of matching hole 711 and on the outer peripheral surface of protruding shaft.

Outer circle cooperate oil storage tank 92 specific generation type can there are many, in the present embodiment, outer circle fit structure court Groove 93 annular in shape, shape between the groove 93 and the outer peripheral surface of protruding shaft are offered at matching hole 711 to one end of cylinder 3 Cooperate oil storage tank 92 at outer circle.As disposable embodiment, it is also possible to matching hole 711 and is set towards one end of cylinder ontology There is chamfering, forms outer circle between chamfering and the outer peripheral surface of protruding shaft and cooperate oil storage tank 92.

Outer circle cooperate oil guide groove 91 the specific location on the hole wall of matching hole 711 can there are many, in the present embodiment, Outer circle cooperates oil guide groove 91 to be set to cylinder 3 and cooperates in non-bearing area.Due to cylinder 3 cooperate supporting region at protruding shaft outer peripheral surface with match The friction closed between the hole wall in hole 711 is bigger, and outer circle cooperation oil guide groove 91 setting is cooperated in non-bearing area in cylinder 3, can be with Guarantee that cylinder 3 cooperates the continuity of lubricating oil film at supporting region, so that it is guaranteed that lubrication zone has preferable lubricant effect, reduces gas Cylinder 3 cooperates the abrasion at supporting region, and then sufficiently reduces the abrasion between the outer peripheral surface of protruding shaft and the hole wall of matching hole 711, together When also have the effect of preventing cylinder 3 from stress at supporting region being cooperated to concentrate.

Inner circle fit structure is equipped with outer circle and cooperates outage, and outer circle cooperates outage to be to cooperate to tie axially through inner circle The through-hole of structure, and be connected to outer circle cooperation oil guide groove 91 far from one end of cylinder ontology.Outer circle cooperates the setting of outage, can incite somebody to action Oil in outer circle cooperation oil guide groove 91 is expelled in the oil sump of compressor immediately, to form oil circulation, outer circle cooperates Oil Guide Oil in slot 91 can take away the frictional heat between the outer peripheral surface of protruding shaft of absorption and the hole wall of matching hole 711 in real time, reduce The secondary temperature of the friction constituted between the outer peripheral surface of protruding shaft and the hole wall of matching hole 711, improves the reliability of compressor.

The specific constructive form of outer circle fit structure can there are many, outer circle fit structure in the present embodiment is upper limit Plate 51.

The present embodiment also provides one kind and turns 2 compressor of the cylinder piston, including the above-mentioned pump housing knot for turning 2 compressor of the cylinder piston Structure.

Embodiment 2

As shown in Figure 20-Figure 24, the pump body structure provided in this embodiment for turning 2 compressor of the cylinder piston, not with embodiment 1 It is with place, cylinder 3 is only equipped with protruding shaft in one end of cylinder ontology, while eliminating upper limit plate 51 and lower flange 72.

Cylinder jacket 4 is equipped with the exhaust outlet and air entry being respectively communicated with cylinder installation cavity 41.The end face of cylinder 3 has first Auxiliary section；First auxiliary section has the trend moved towards corresponding end face fit structure under the pressure effect of exhaust ports；

End face fit structure towards being the second auxiliary section 10 at the position of first auxiliary section corresponding on the one side of cylinder 3, Second auxiliary section 10 of at least one end face fit structure is equipped at least one head tank 20, and head tank 20 is suitable for being passed through pressure Oil and/or pressure gas are so that the first auxiliary section is reduced or eliminated towards the trend that corresponding end face fit structure moves.

When the high pressure of exhaust ports is applied to 3 one horizontal pressure forces of cylinder, can be applied to 3 one, cylinder has cylinder 3 There is the torque (especially when cylinder 3 is only equipped with short axle at one end, cylinder 3 can be more easier to tilt) of slope trend, first matches Conjunction portion has the trend moved towards corresponding end face fit structure, at this point, being passed through the pressure oil and/or pressure gas of head tank 20 It can make the torque that cylinder 3 is opposite with above-mentioned torque by one, cooperate first auxiliary section towards the corresponding end face The trend of structure motion reduces or eliminates, so that the inclined degree of cylinder 3 be made to reduce or avoid 3 run-off the straight of cylinder.

In the present embodiment, the second auxiliary section 10 of each end face fit structure is equipped at least one head tank 20.This Sample can apply respectively from the both ends of cylinder 3 and cylinder 3 is made to have the opposite torque of the torque of slope trend, thus more efficient Ground makes the inclined degree of cylinder 3 reduce or avoid 3 run-off the straight of cylinder.As disposable embodiment, it is also possible to only There is second auxiliary section 10 of an end face fit structure to be equipped with head tank 20.

The particular number of head tank 20 on each end face fit structure can there are many, in the present embodiment, Mei Geduan Second auxiliary section 10 of face fit structure is equipped with a head tank 20.As disposable embodiment, each end face cooperation Two or three head tanks 20 can also be equipped on second auxiliary section 10 of structure.

For head tank 20 be passed through pressure oil and/or pressure gas concrete mode can there are many, in the present embodiment, pressure Oil communication on slot 20 and end face fit structure.Have in the oil circuit of end face fit structure the high pressure oil that is flowed into from shaft 1 with High pressure gas.It need to only be can be realized in this way by oil circuit and provide high pressure oil and high pressure gas for head tank 20, had structure simple, be convenient for The advantages of realization.

The concrete shape of head tank 20 can there are many, in the present embodiment, head tank 20 be in arcuation, and along end face cooperate The circumferentially extending of structure.As disposable embodiment, head tank 20 can also be linearly or wavy etc..

The shaft hole 34 for being suitable for passing through for the shaft 1 of pump body structure is collectively formed in cylinder ontology and protruding shaft.

The concrete form of two end face fit structures can there are many, in the present embodiment, with 3 upper surface of cylinder cooperation End face fit structure is upper flange 71, and the end face fit structure with the cooperation of 3 lower end surface of cylinder is lower limiting board 52.As convertible Embodiment, being also possible to two end face fit structures is flange.As disposable embodiment, it is also possible that two A end face fit structure is limit plate.

Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or It changes still within the protection scope of the invention.

Claims (24)

1. a kind of pump body structure for turning the cylinder piston compressor characterized by comprising

Shaft (1), including shaft body (11), and the axis inner hole (12) being set in the shaft body (11), the axis inner hole (12) Along the axially extending of the shaft body (11)；The shaft body (11) has the axis auxiliary section cooperated with the piston (2), described The periphery wall of axis auxiliary section has two the first planes (111) being oppositely arranged, and the shaft (1) is relative to the piston (2) edge The direction parallel with the first plane (111) moves back and forth；The hole wall of the axis inner hole (12) and first plane (111) Between be provided through at least one shafting oil hole (13)；

Piston (2) is equipped with the shaft mounting hole (21) for being suitable for passing through for the shaft (1), the hole of the shaft mounting hole (21) Wall has two the second planes (22) being oppositely arranged, the first plane (111) phase of second plane (22) and respective side Cooperation；

At least one shafting oil slot (14) is set at least one described first plane (111), and the axis along the shaft body (11) To extension, the shafting oil slot (14) is connected to the shafting oil hole (13).

2. the pump body structure according to claim 1 for turning the cylinder piston compressor, which is characterized in that the shafting oil slot (14) by One end of first plane (111) extends to the other end.

3. the pump body structure according to claim 1 for turning the cylinder piston compressor, which is characterized in that the shafting oil slot (14) is in Linearly.

4. the pump body structure according to claim 1 for turning the cylinder piston compressor, which is characterized in that the axis inner hole (12) Multiple shafting oil holes (13) are equipped between hole wall and corresponding first plane (111).

5. turning the pump body structure of the cylinder piston compressor described in any one of -4 according to claim 1, which is characterized in that Mei Gesuo It states and is respectively equipped at least one described shafting oil slot (14) on the first plane (111).

6. the pump body structure according to claim 5 for turning the cylinder piston compressor, which is characterized in that each first plane (111) the shafting oil slot (14) is respectively equipped on.

7. the pump body structure according to claim 6 for turning the cylinder piston compressor, which is characterized in that the shafting oil slot (14) exists Eccentric setting on first plane (111).

8. the pump body structure according to claim 7 for turning the cylinder piston compressor, which is characterized in that the shaft (1) drives During piston (2) rotation, towards the area of corresponding second plane (22) movement on first plane (111) Domain is that axis cooperates supporting region, and the region backwards to corresponding second plane (22) movement is that axis cooperates non-bearing area, the axis Oil groove (14) is set in axis cooperation non-bearing area.

9. the pump body structure according to claim 1 for turning the cylinder piston compressor, which is characterized in that shafting oil hole (13) edge Shaft body (11) radially extend.

10. turning the pump body structure of the cylinder piston compressor described in any one of -4 according to claim 1, which is characterized in that also wrap It includes:

Cylinder (3) is sheathed on the piston (2) outside, and is equipped with the piston mounting holes (31) for being suitable for installing the piston (2), institute Piston (2) are stated to be suitable for moving back and forth in the piston mounting holes (31) relative to the cylinder (3)；

Cylinder jacket (4), is equipped with the cylinder installation cavity (41) for being suitable for installing the cylinder (3), and the cylinder (3) is suitable in the gas It is rotated in cylinder installation cavity (41) relative to the cylinder jacket (4).

11. the pump body structure according to claim 10 for turning the cylinder piston compressor, which is characterized in that cylinder (3) packet It includes:

Cylinder ontology (32) penetratingly offers the piston mounting holes (31) on the peripheral wall of the cylinder ontology (32)；

At least one cylinder oil guiding hole (33) extends through to the cylinder (3) by the hole wall of the piston mounting holes (31) Outer peripheral surface.

12. the pump body structure according to claim 11 for turning the cylinder piston compressor, which is characterized in that the cylinder jacket (4) It is equipped with the air entry being connected to the cylinder installation cavity (41), the cylinder oil guiding hole (33) is staggered with the air entry to be set It sets.

13. the pump body structure according to claim 11 for turning the cylinder piston compressor, which is characterized in that on the piston (2) Equipped with the shaft mounting hole (21) for being suitable for passing through for the shaft (1), the piston (2) is corresponding with cylinder oil guiding hole (33) Side wall be equipped at least one oil outlet (23), the oil outlet (23) extends to by the hole wall of the shaft mounting hole (21) The outer peripheral surface of the piston (2).

14. the pump body structure according to claim 10 for turning the cylinder piston compressor, which is characterized in that further include two end faces Fit structure, is respectively arranged on the both ends of the cylinder (3), and is connected on the cylinder jacket (4).

15. the pump body structure according to claim 14 for turning the cylinder piston compressor, which is characterized in that further include at least one Clearance structure is set at least one described end face fit structure towards on the end face of the cylinder (3), or is set to the cylinder (3) and at least one end face of the cylinder jacket (4)；The clearance structure includes at least one oil scupper (61), the row Oil groove (61) is extended to the outer peripheral surface of the end face fit structure by the inner peripheral surface of the end face fit structure, or by the gas The inner peripheral surface of the corresponding end face fit structure of cylinder (3) extends to the outer peripheral surface of the cylinder jacket (4).

16. the pump body structure according to claim 15 for turning the cylinder piston compressor, which is characterized in that the clearance structure is set In at least one described end face fit structure towards on the end face of the cylinder (3), the oil scupper (61) is matched by the end face The inner peripheral surface for closing structure extends to the outer peripheral surface of the end face fit structure.

17. the pump body structure according to claim 16 for turning the cylinder piston compressor, which is characterized in that the clearance structure is also Including at least one avoiding hollow groove (62), the avoiding hollow groove (62) along the end face fit structure circumferentially extending, and with the row Oil groove (61) connection.

18. the pump body structure according to claim 14 for turning the cylinder piston compressor, which is characterized in that

Cylinder jacket (4) is equipped with the exhaust outlet being connected to the cylinder installation cavity (41)；The end face of the cylinder (3) has first to match Conjunction portion (36), first auxiliary section (36), which has under the pressure effect of the exhaust ports towards the corresponding end face, matches Close the trend of structure motion；

The end face fit structure towards being at the position for corresponding to first auxiliary section (36) on the one side of the cylinder (3) Second auxiliary section (10) of second auxiliary section (10), at least one end face fit structure is equipped at least one pressure Slot (20), the head tank (20) is suitable for being passed through pressure oil and/or pressure gas so that first auxiliary section (36) direction is corresponding The end face fit structure movement trend reduce or eliminate.

19. the pump body structure according to claim 10 for turning the cylinder piston compressor, which is characterized in that on the cylinder (3) Equipped with shaft hole (34), the pump body structure further include:

At least one inner circle fit structure, the inner circle fit structure include cooperation ontology (721), and the ontology with described (721) boss (722) extended；The boss (722) is suitable for stretching and being placed in the shaft hole (34), and with the shaft The hole wall in hole (34) cooperates；Cooperation ontology (721) is greater than the shaft hole in the maximum length of the cylinder (3) radially (34) aperture；The cylinder (3) rotates relative to inner circle fit structure；

Inner circle cooperates oil guide groove (81), and inner circle cooperation oil guide groove (81) is set on the outer peripheral surface of the boss (722), by institute It states boss (722) and extends to the cooperation ontology (721) far from one end of cooperation ontology (721)；Alternatively, the inner circle is matched It closes oil guide groove (81) to be set on the hole wall of the shaft hole (34), the gas is extended to by the hole wall of the piston mounting holes (31) The outer end face of cylinder (3).

20. the pump body structure according to claim 19 for turning the cylinder piston compressor, which is characterized in that further include annular in shape Inner circle cooperates oil storage tank (82), inner circle cooperation oil storage tank (82) be set to the boss (722) outer peripheral surface and/or described turn On the hole wall of axis hole (34)；Inner circle cooperation oil storage tank (82) and the separate cooperation of inner circle cooperation oil guide groove (81) are originally One end of body (721) is connected to.

21. the pump body structure according to claim 20 for turning the cylinder piston compressor, which is characterized in that the cooperation ontology (721) it is equipped with inner circle cooperation outage (84), inner circle cooperation outage (84) is axially through the cooperation ontology (721) through-hole, and be connected to inner circle cooperation oil guide groove (81) far from the one end of the piston mounting holes (31).

22. the pump body structure according to claim 14 for turning the cylinder piston compressor, which is characterized in that cylinder (3) packet It includes cylinder ontology (32), and the protruding shaft (35) to be extended outwardly by least one end of the cylinder ontology (32), the protruding shaft (35) It is equipped with shaft hole (34) and at least one protruding shaft (35) oil guiding hole；The shaft hole (34) is suitable for installation shaft (1)；It is described convex Axis (35) oil guiding hole runs through the side wall of the protruding shaft (35), and is connected to the shaft hole (34)；The pump body structure further include:

At least one outer circle fit structure, the outer circle fit structure are equipped with the matching hole for being adapted to fit into the protruding shaft (35) (711)；The aperture of the matching hole (711) is less than the outer diameter of the cylinder (3)；The cylinder (3) cooperates relative to outer circle ties Structure rotation；

Outer circle cooperates oil guide groove (91), and outer circle cooperation oil guide groove (91) is set on the hole wall of the matching hole (711), by institute The one end for stating hole wall towards the cylinder ontology (32) of matching hole (711) extends to one end far from the cylinder ontology (32)；Or Person, outer circle cooperation oil guide groove (91) is set on the outer peripheral surface of the protruding shaft (35), by the protruding shaft (35) and the cylinder sheet One end of body (32) connection extends to one end far from the cylinder ontology (32).

23. the pump body structure according to claim 22 for turning the cylinder piston compressor, which is characterized in that further include annular in shape Outer circle cooperates oil storage tank (92), and outer circle cooperation oil storage tank (92) is set on the hole wall of the matching hole (711) and/or described On the outer peripheral surface of protruding shaft (35)；Outer circle cooperation oil storage tank (92) and the outer circle cooperate oil guide groove (91) towards the cylinder sheet One end of body (32) is connected to.

24. one kind turns the cylinder piston compressor, which is characterized in that including turning the cylinder piston pressure described in any one of claim 1-23 The pump body structure of contracting machine.