CN109555694A - Piston limit structure, compressor and heat exchange equipment - Google Patents
Piston limit structure, compressor and heat exchange equipment Download PDFInfo
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- CN109555694A CN109555694A CN201811555294.9A CN201811555294A CN109555694A CN 109555694 A CN109555694 A CN 109555694A CN 201811555294 A CN201811555294 A CN 201811555294A CN 109555694 A CN109555694 A CN 109555694A
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- cylinder
- hole
- sliding slot
- limit structure
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- 230000004323 axial length Effects 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000004378 air conditioning Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000011031 large-scale manufacturing process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000007514 turning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/20—Rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2240/00—Components
- F04C2240/30—Casings or housings
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The present invention relates to compressor field, a kind of piston limit structure, compressor and heat exchange equipment are specifically provided.Piston limit structure includes: cylinder, has the piston hole perpendicular to cylinder-bore axis direction, and piston hole is circle, offers sliding slot on the inner wall of piston hole, the both ends of sliding slot along piston hole axial length not through the lateral wall of cylinder；And piston, it can reciprocatingly slide in piston hole and in piston hole, piston side wall is equipped with locating part, and when piston and cylinder assemble, locating part can be slided in sliding slot and be contacted with the side wall of sliding slot to limit piston around itself axial direction and rotate.Piston limit mechanism provided by the invention will not introduce clearance volume, more preferable to piston limit effect.
Description
Technical field
The present invention relates to compressor fields, and in particular to a kind of piston limit structure, compressor and heat exchange equipment.
Background technique
Turning the cylinder piston compressor is a kind of compressor based on the work of crosshead shoe principle, and cylinder turns in cylinder jacket
Dynamic, piston is horizontally installed in the piston hole of cylinder, and is reciprocatingly slided in piston hole, thus end face, piston hole in piston
Side wall and cylinder jacket inner wall between form compression chamber.
In order to guarantee the laminating degree and applicability between piston and piston hole, for the angle of manufacture, using circle
Piston hole and cylindrical cross-section piston be clearly it is optimal, be easiest to guarantee machining accuracy.However, in this case,
Since piston hole is horizontally installed in cylindrical piston, the edges at two ends of piston hole is actually mutually passing through for two cylinders
Line, thus circumferentially length everywhere is consecutive variations.Equally, the edges at two ends of piston is also the intersection of two cylinders
(consistent with the edges at two ends of piston hole), piston are also consecutive variations along its circumferential length everywhere.In the ideal situation, living
The bus of plug head (i.e. end face) should be parallel with the bus of cylinder outer surface, and such piston can be in the terminal of reciprocating motion
The inner wall perfection fitting (i.e. piston end surface and cylinder outer surface constitute the cylindrical surface completed) of cylinder jacket, completes exhaust.However, real
Border be taken in using circular cross-section piston when, in the process of running, relative to cylinder rotation can occur for piston, due to piston and work
The length of consent circumferentially everywhere is all consecutive variations, therebetween once relative rotation occurs, outside piston end surface and cylinder
Surface just cannot form complete cylindrical surface, and piston crown and cylinder liner internal wall will be caused during piston is compressed
Interference, cause to hit cylinder.
Cylinder is hit in order to solve the problems, such as that circular piston can generate, is compressed in the prior art using two schemes to the cylinder piston is turned
Machine improves.
First is that the piston hole of cylinder also needs to be set as non-circular shape accordingly, non-circular knot using non-circular piston
Structure processing technology is bad, is unfavorable for large-scale production, and be difficult to, precision is difficult to ensure.And piston and cylinder cooperate
Shelves size is matched there are multiple in face, such as two on-circular cross-section outside diameters, semicircle cambered surface distance of center circle, parallel segment length, piston be wide
Degree etc., assembling process is difficult to guarantee the fit clearance between piston and cylinder simultaneously, influences compressor assembly and performance.And it is non-
There are moderate finite deformations when circular piston parallel-segment actual motion, influence compressor reliability.
Second is that position limiting structure is axially added in circular piston, so that piston rotation is limited, specially in the axis of circular piston
Pin is set on face, and opens up perforative pin avoiding hollow groove in the piston hole corresponding position of cylinder, passes through pin and avoiding hollow groove pair
Piston is limited, and prevents piston from rotating.However in this scheme, although piston is circular piston, due to passing through
The setting of avoiding hollow groove is worn, corresponding piston hole is actually non-circular, avoiding hollow groove and bayonet fittings, so that the end position of avoiding hollow groove
It is intracavitary in suction and discharge, it will affect the suction and discharge process of the pump housing, while natural clearance volume can be introduced in compressed ends.And pin
And the cooperation of avoiding hollow groove is located between two compression chambers, needs to guarantee two cavity sealings, thus belong to finishing position, for
Cylinder is still needed using the special processing technology for being unfavorable for large-scale production such as wire cutting.Therefore, how circular piston is solved
Cylinder problem of hitting become to improve and turn the important research direction of the cylinder piston compressor.
Summary of the invention
Rotation, which can occur, for solution circular piston in the prior art causes piston crown and cylinder liner internal wall to be interfered even
Cylinder, simultaneously the technical issues of position limiting structure can introduce natural clearance volume between circular piston and cylinder are hit, the present invention provides
A kind of piston limit structure for preventing piston rotation while precision height being cooperated not introduce clearance volume.
Meanwhile clearance volume can be introduced, to adding to solve the existing circular piston position limiting structure turned in the cylinder piston compressor
The demanding technical problem of work technique, the present invention provides the compressions using circular piston that one kind will not introduce clearance volume
Machine.
Further more, the present invention also provides a kind of heat exchange equipments to solve technical problem similar to the above.
In a first aspect, the present invention provides a kind of piston limit structures, comprising:
Cylinder has perpendicular to the cylinder-bore axis direction and runs through the piston hole of the cylinder, and the piston hole is on edge
It is projected as circle in the through direction, the cunning being axially arranged along the piston hole is offered on the inner wall of the piston hole
Slot, the both ends of the sliding slot are in the lateral wall along the piston hole axial length not through the cylinder；With
Piston is shape-ordinatedly set in the piston hole and can reciprocatingly slide in the piston hole, the piston side
Wall is equipped with locating part, when the piston and the cylinder assemble, the locating part can be slided in the sliding slot and with it is described
The side wall of sliding slot is contacted to limit the piston around itself axial direction and rotate.
The end face of the cylinder is equipped with the pilot hole for being through to the piston hole, and the sliding slot is far from the cylinder outer peripheral surface
One end be through to the pilot hole.
Limiting slot, the locating part and the limiting slot are offered on the side wall of the piston and the sliding slot corresponding position
It shape-ordinatedly assembles, when the piston and the cylinder assemble, one end of the locating part is located at the limiting slot, the other end
Positioned at the sliding slot.
For the pilot hole through the cylinder so that shaft passes through, section is round and concentric with the cylinder end face.
Position of the sliding slot in the cylinder is corresponding with 1/2 position of the piston hole radical length.
When the piston and the cylinder assemble, meet:
L < R1-R2-S
Wherein, L is one end shortest distance away from the piston end surface of the limiting slot along piston axial direction, R1It is the cylinder end
The radius in face, R2It is the radius in the pilot hole section, S is the stroke that piston slides in the cylinder.
When the piston and the cylinder assemble, meet:
L′≤L
Wherein, L ' is the shortest distance of the one end of sliding slot far from the pilot hole away from the cylinder lateral wall.
It is offered on the piston along the perforative axis hole in cylinder-bore axis direction, it is axial that the axis hole is located at the piston
At 1/2 position of length.
The sliding slot is set to the axis hole along at least side in the front and rear sides of the piston axis direction.
The locating part is limit plate.
The locating part is cylindrical position-limitting pin.
Second aspect, the present invention provides a kind of compressors, comprising:
Shaft；
Above-mentioned piston limit structure, the shaft are successively pierced by the cylinder and the piston, and the shaft drives institute
State piston and the rotational cylinder；And
Cylinder jacket, the cylinder are set in the cylinder jacket and rotate in the cylinder jacket.
The third aspect, the present invention provides a kind of heat exchange equipments, including above-mentioned piston limit structure.
The heat exchange equipment is air-conditioning.
Technical solution of the present invention has the following beneficial effects:
1) piston limit structure provided by the invention, including cylinder, piston and locating part, cylinder have perpendicular to cylinder axis
Line direction and the piston hole for running through cylinder, piston hole are projected as circle in through direction, and piston-shaped be ordinatedly set to is lived
It can reciprocatingly slide in consent and in piston hole, using circular piston and circular piston hole, the craftsmanship of piston and cylinder is good,
It is easy to process, guarantee machining accuracy, be easy to large-scale production, and the piston hole of cylinder to cylinder end face apart from even transition,
Similar arch bridge structure, structure is firmer, is unlikely to deform, while circular piston and the cooperation of circular cylinder piston hole, is conducive to control
Fit-up gap between piston and cylinder processed advantageously reduces friction power loss, reduces leakage, to improve piston compressor
Energy.The sliding slot being axially arranged along piston hole is offered on the inner wall of piston hole, the both ends of sliding slot are lived not through the lateral wall of cylinder
It fills in and avoiding hollow groove is not present between end face and cylinder inner wall, confined planes are not connected to cavity volume, clearance volume will not be introduced, so that turning
Cylinder compressor work is more stable.Piston side wall is equipped with locating part, and locating part can be slided in sliding slot and be abutted with chute wall
It is axially rotated with limiting piston around itself.Sliding slot cooperation on the locating part and cylinder being mounted on piston is set, workpiece is convenient for
Assembly, production easy to process, at the same between piston and cylinder with shelves size reduce, effectively control piston and cylinder cooperation between
Gap reduces the friction power loss between piston and cylinder, promotes compressor performance.
2) piston limit structure provided by the invention, cylinder end face are equipped with the pilot hole for being through to piston hole, and sliding slot is separate
One end of cylinder outer peripheral surface is through to pilot hole, and one end of sliding slot is through in pilot hole, assembles convenient for locating part, reduces simultaneously
Sliding slot Working position is processed convenient for cylinder.
3) side wall of piston limit structure provided by the invention, piston and sliding slot corresponding position is equipped with limiting slot, limit
Part and limit groove shape cooperation are assembled, and when piston and cylinder assemble, one end of locating part is located at limiting slot, and the other end, which is located at, to be slided
Slot, by the assembly of locating part and piston, so that locating part can reciprocatingly slide in sliding slot, the side wall and sliding slot of locating part
Side wall abut to being limited to piston, position limiting structure simple and stable.
4) piston limit structure provided by the invention, pilot hole are passed through through cylinder for shaft, section be it is round and
Concentric with cylinder end face, position of the sliding slot in cylinder is corresponding with 1/2 position of piston hole radical length, convenient for limiting slot and
The processing of sliding slot.
5) when piston limit structure provided by the invention, piston and cylinder assemble, meet: L < R1-R2- S, wherein L is limit
One end shortest distance away from piston end surface of the position slot along piston axial direction, R1It is the radius of cylinder end face, R2It is the half of pilot hole section
Diameter, S are the strokes that piston slides in cylinder.When meeting the formula, without departing from sliding slot when locating part slides in sliding slot,
To guarantee the reliability of position limiting structure.
6) when piston limit structure provided by the invention, piston and cylinder assemble, meet: L '≤L, wherein L ' is sliding slot
One end far from pilot hole is away from the shortest distance of cylinder lateral wall.When meeting the formula, locating part slides into row in sliding slot
Cylinder will not be hit when way limit position, so that position limiting structure is more reliable and more stable.
7) piston limit structure provided by the invention is offered along the perforative axis hole in cylinder-bore axis direction, axis hole on piston
At 1/2 position of piston axial length, sliding slot is set to axis hole along at least side in the front and rear sides of piston axis direction.
One or more can be arranged in position limiting structure on piston, and limit effect is more preferable.
8) compressor provided by the invention, including shaft, above-mentioned piston limit structure and cylinder jacket, on cylinder and piston
Equipped with along the axial perforative axis hole of cylinder, cylinder is set in cylinder jacket and is driven by shaft and rotated, due to the compressor have it is upper
The piston limit structure stated, therefore there are above-mentioned all beneficial effects.
9) heat exchange equipment provided by the invention including above-mentioned piston limit structure, therefore has above-mentioned all beneficial
Effect.
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 perspective view of the explosion of compressor in a kind of embodiment provided by the invention；
Fig. 2 is piston structure schematic diagram in a kind of embodiment provided by the invention；
Fig. 3 is structural representation of air cylinder in a kind of embodiment provided by the invention；
Fig. 4 is the assembling structure cross-sectional view of compressor in a kind of embodiment provided by the invention；
Fig. 5 is working principle diagram in a kind of embodiment provided by the invention；
Fig. 6 is locating part, piston and structural representation of air cylinder in second of embodiment provided by the invention；
Fig. 7 is compressor assembling structure cross-sectional view in second of embodiment provided by the invention；
Fig. 8 is locating part, piston and structural representation of air cylinder in the third embodiment provided by the invention；
Fig. 9 is position limiting structure sectional arrangement drawing in the third embodiment provided by the invention；
Figure 10 is position limiting structure sectional arrangement drawing in the 4th kind of embodiment provided by the invention；
Figure 11 is position limiting structure sectional arrangement drawing in the 5th kind of embodiment provided by the invention；
Figure 12 is position limiting structure sectional arrangement drawing in the 6th kind of embodiment provided by the invention；
Figure 13 is position limiting structure sectional arrangement drawing in the 7th kind of embodiment provided by the invention
Description of symbols:
1- cylinder；11- piston hole；12- pilot hole；13- limiting slot；2- piston；21- sliding slot；22- axis hole；3- locating part；
4- upper flange；5- lower flange；6- shaft；7- cylinder jacket.
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.
In addition, technical characteristic involved in invention described below difference embodiment as long as they do not conflict with each other can
To be combined with each other.
The cylinder piston compressor in the prior art that turns includes flange, cylinder jacket, cylinder, piston and shaft, is slided based on cross
Block principle makes piston reciprocatingly slide during rotation relative to cylinder, thus both ends and cylinder and cylinder jacket in piston
Form compression chamber and discharge chamber.Thus for turning the piston of the cylinder piston compressor, need that piston occurs around own axes
The freedom degree of rotation is limited, piston limit structure provided by the invention, be can be used for the cylinder piston in the prior art that turns and is compressed
Machine limits piston to realize.Fig. 1 shows a kind of embodiment of inventive piston position limiting structure into Fig. 5.
Piston limit structure provided by the invention includes cylinder 1, piston 2 and locating part 3.As shown in Figures 1 to 5, exist
In present embodiment, cylinder 1 is cylinder block, and the pilot hole 12 through cylinder 1 is offered in the middle part of the axial direction of cylinder 1, is filled
Distribution 12 is arranged concentrically on 1 end face of cylinder with 1 end face of cylinder, for passing through for shaft 6.It is offered on the outer peripheral surface of cylinder 1
Perpendicular to 12 direction of pilot hole and through the piston hole 11 of cylinder 1, piston hole 11 is projected as justifying on itself axial direction
Shape.
As shown in Fig. 2, piston 2 is shape-ordinatedly set in piston hole 11 and can reciprocatingly slide in piston hole 11.Piston 2
It is adapted to piston hole 11, piston 2 is similar cylindrical structure, and the both ends end face of piston 2 is to cooperatively form completion with piston hole 11
The axial length of the curved-surface structure on cylindrical surface, piston 2 is less than 1 radial dimension of cylinder, so that piston 2 does reciprocal cunning in cylinder 1
It is dynamic.2 middle part of piston is offering axis hole 22 along 1 axis direction of cylinder, and when piston 2 is installed in piston hole 11, shaft 6 is worn
Axis hole 22 on the pilot hole 12 and piston 2 of cylinder 1 out, axis hole 22 are set at 1/2 position of 2 axial length of piston.Piston 2
Side wall is equipped with limiting slot 13, and limiting slot 13 is for assembling locating part 3, and in the present embodiment, locating part 3 and limiting slot 13 are set
It is set to the fit structure of similar key and keyway, limiting slot 13 is waist type groove, and 3 lower end of locating part is securely fitted in limiting slot 13,
3 upper end of locating part protrudes 2 side wall of piston.Limiting slot 13 is along the axial setting of piston 2 and positioned at 1/2 position of 2 radical length of piston
Locate, the width of 2 end face of piston to axis hole 22 is maximum at the position, convenient for the processing of limiting slot 13.
As shown in figure 3, sliding slot 21 is offered at the piston hole 11 of cylinder 1 position corresponding with limiting slot 13, sliding slot 21
It is through in pilot hole 12 in one end of pilot hole 12, and the other end is not through 1 lateral wall of cylinder.As shown in figure 4, piston 2,
When cylinder 1 and locating part 3 assemble, piston 2 is fitted into piston hole 11, and one end of locating part 3 is fixed in limiting slot 13,
The other end is located in sliding slot 21, and the radial dimension of locating part 3 and the radial dimension of sliding slot 21 cooperate, to limit the generation of piston 2
Rotation.
In the present embodiment, piston 2 moves reciprocatingly relative to cylinder 1 in the operating condition, therefore locating part 3 is with work
Plug 2 reciprocatingly slides in sliding slot 21, and position of the limiting slot 13 on piston meets:
L < R1-R2-S
Wherein, L is one end shortest distance away from piston end surface of the limiting slot along piston axial direction, R1It is the half of cylinder end face
Diameter, R2It is the radius in pilot hole section, S is the stroke that piston slides in the cylinder.
Work as L=R1-R2When-S, when piston 2 slides into stroke limit position, end position of the locating part 3 far from 22 one end of axis hole
In the extreme position for being detached from sliding slot 21, i.e., locating part 3 is fully located in pilot hole 12 at this time, that is, will be disengaged from sliding slot 21.Therefore it is
Guarantee that the process that locating part 3 slides in sliding slot 21 does not depart from sliding slot 21, L < R is set1-R2- S, when meeting the formula, limit
Part 3 enters without departing from sliding slot 21 in the pilot hole 12 of cylinder 1.
Simultaneously in the present embodiment, the position of sliding slot 21 meets:
L′≤L
Wherein, L ' is the shortest distance of the one end of sliding slot 21 far from pilot hole 12 away from 1 lateral wall of cylinder.As L '=L, limit
When position part 3 slides into stroke end position in sliding slot 21, the end of locating part 3 and the side wall of 21 end of sliding slot are in just not
The extreme position of contact, locating part 3 will not collide with limit sliding chutes 21 at this time.As L ' < L, locating part 3 is in sliding slot
When reciprocatingly sliding in 21, the end of locating part 3 will not contact always with the side wall of 21 end of sliding slot, therefore locating part 3 and sliding slot
21 will not collide, and compressor operating is more stable and reliable.
On this basis it is found that locating part 3 is longer in the length on 2 axial direction of piston, the length of corresponding sliding slot 21
Degree will also design length that is longer, therefore can reducing sliding slot 21 by length of the reduction locating part 3 on 2 axial direction of piston
Degree, the length of sliding slot 21 reduce, and make the seal distance between 1 inner wall of piston 2 and cylinder elongated accordingly so that piston 2 with
Sealing effect is more preferable between 1 inner wall of cylinder.Simultaneously under the premise of meeting minimum seal distance requirement, it can accordingly design reduction and live
The diameter of plug 2 and cylinder 1, reduces the mechanical consumption of compressor.
The above-mentioned structure to the piston limit structure in present embodiment is illustrated, below to limiting in present embodiment
Position part 3 and the working principle of limit sliding chutes 21 are illustrated.
As shown in figure 5, in (a), one end weight of one end and sliding slot 21 far from pilot hole 12 of 3 principle axis hole 22 of locating part
It closes, when piston 2 and cylinder 1 turn to position in (b), locating part 3 slides into 21 middle position of sliding slot, at this time a part limit
Part 3 is located in pilot hole 12, and another part is located in sliding slot 21.When piston 2 and cylinder 1 turn to position in (c), locating part
3 slide into sliding slot 21 close to one end of pilot hole 12.Locating part 3 is in sliding slot 21 in sliding process, and the side wall of locating part 3 is always
It is abutted with the side wall of limit sliding chutes 21, to realize the limit to piston 2, prevents piston 2 from axially rotating around itself.
Above-mentioned structure and principle to the piston limit structure in present embodiment is illustrated, it should be noted that
On the basis of the above embodiment, the present invention can also have other alternative embodiments.
Second of embodiment of inventive piston position limiting structure is shown in Fig. 6, Fig. 7, it is in the present embodiment, and upper
The difference for stating embodiment is that the quantity of limiting slot 13 is set as two, and there are two sliding for setting on 1 inner wall of cylinder accordingly
Slot 21, two limiting slots 13 are located at the front and rear sides of axis hole 22, and two locating parts 3 limit piston 2, limit effect
More preferably.
The third embodiment of inventive piston position limiting structure is shown in Fig. 8, Fig. 9, in the present embodiment, limit
Part 3 is set as cylindrical position-limitting pin, while limiting slot 13 is accordingly set as cylindrical pin nail hole.Present embodiment reduces limit
Part 3 makes the seal distance between 1 inner wall of piston 2 and cylinder elongated, so that piston 2 accordingly in the length axial along piston 2
Sealing effect is more preferable between 1 inner wall of cylinder.21 both ends of sliding slot can be set in the case where meeting 2 reciprocating stroke of piston simultaneously
Not through 1 inner wall of cylinder, diameter and piston 2 row of the sliding slot 21 along 11 axial length of piston hole at least equal to position-limitting pin at this time
The sum of journey.Simultaneously under the premise of meeting minimum seal distance requirement, the diameter for reducing piston 2 and cylinder 1, drop can be accordingly designed
The mechanical consumption of low compressor.As shown in figure 9, in the present embodiment, position-limitting pin is set to the one of 2 axis hole of piston, 22 lower end
Side.
Figure 10 shows the 4th kind of embodiment of inventive piston position limiting structure, in the present embodiment, position-limitting pin
Set on the side of 2 axis hole of piston, 22 upper end.
Figure 11 shows the 5th kind of embodiment of inventive piston position limiting structure, in the present embodiment, position-limitting pin
Set on each side of 2 axis hole of piston, 22 upper and lower ends.
Figure 12 shows the 6th kind of embodiment of inventive piston position limiting structure, in the present embodiment, position-limitting pin
Set on the two sides of 2 axis hole of piston, 22 lower end.
Figure 13 shows the 7th kind of embodiment of inventive piston position limiting structure, in the present embodiment, position-limitting pin
Set on the two sides of 2 axis hole of piston, 22 upper end.
In second aspect, the present invention also provides a kind of compressors, as shown in Figure 1, compressor of the invention includes shaft
6, upper flange 4, lower flange 5, cylinder jacket 7 and above-mentioned piston limit structure, cylinder 1 are set in cylinder jacket 7, and shaft 6 is successively
Across upper flange 4, cylinder jacket 7 and lower flange 5.Compressor of the invention is based on crosshead shoe principle, as shown in Fig. 2, compression
When machine works, shaft 6 abuts to rotate in cylinder jacket 7 with piston 2 and cylinder 1 with 22 wall surface of axis hole of piston 2, due to
Shaft 6 and 1 eccentric rotary of cylinder, piston 2 moves reciprocatingly relative to cylinder 1, to compress in the cavity volume at 2 both ends of piston
Gas.Cooperated in the present invention by the sliding slot 21 of setting locating part 3 and cylinder 1 and limited, the piston of compressor is effectively avoided to send out
It is born from life of changing the line of production and hits cylinder.
In the third aspect, the present invention also provides a kind of heat exchange equipment, which includes above-mentioned compressor or work
Fill in position limiting structure.Heat exchange equipment is air-conditioning or refrigerator.
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 among still in the protection scope of the application.
Claims (14)
1. a kind of piston limit structure characterized by comprising
Cylinder (1) has perpendicular to the cylinder (1) axis direction and runs through the piston hole (11) of the cylinder (1), the work
Consent (11) offers in the circle that is projected as in the through direction, the inner wall of the piston hole (11) along the piston hole
(11) sliding slot (21) being axially arranged, the both ends of the sliding slot (21) along the piston hole (11) axial length not through
The lateral wall of the cylinder (1)；With
Piston (2) is shape-ordinatedly set in the piston hole (11) and can reciprocatingly slide in the piston hole (11), described
Piston (2) side wall is equipped with locating part (3), and when the piston (2) and the cylinder (1) are assembled, the locating part (3) can be in institute
It states sliding in sliding slot (21) and is contacted with the side wall of the sliding slot (21) to limit the piston (2) around itself axial direction
Rotation.
2. piston limit structure according to claim 1, which is characterized in that
The end face of the cylinder (1) is equipped with the pilot hole (12) for being through to the piston hole (11), and the sliding slot (21) is far from institute
The one end for stating cylinder (1) outer peripheral surface is through to the pilot hole (12).
3. piston limit structure according to claim 2, which is characterized in that
Offered limiting slot (13) on the side wall of the piston (2) and the sliding slot (21) corresponding position, the locating part (3) with
The limiting slot (13) is shape-ordinatedly assembled, when the piston (2) and the cylinder (1) are assembled, the one of the locating part (3)
End is located at the limiting slot (13), and the other end is located at the sliding slot (21).
4. piston limit structure according to claim 3, which is characterized in that
The pilot hole (12) passes through through the cylinder (1) for shaft (6), section be it is round and with the cylinder (1)
End face is concentric.
5. piston limit structure according to claim 4, which is characterized in that
Position of the sliding slot (21) in the cylinder (1) is corresponding with 1/2 position of the piston hole (11) radical length.
6. piston limit structure according to claim 5, which is characterized in that
When the piston (2) and the cylinder (1) are assembled, meet:
L < R1-R2-S
Wherein, L is one end shortest distance away from the piston (2) end face of the limiting slot (13) along piston (2) axial direction, R1It is described
The radius of cylinder (1) end face, R2It is the radius in the pilot hole (12) section, S is piston (2) sliding in the cylinder (1)
Stroke.
7. piston limit structure according to claim 6, which is characterized in that
When the piston (2) and the cylinder (1) are assembled, meet:
L′≤L
Wherein, L ' is the one end of sliding slot (21) far from the pilot hole (12) away from the shortest distance of the cylinder (1) lateral wall.
8. piston limit structure according to claim 7, which is characterized in that
It is offered on the piston (2) along the perforative axis hole of the cylinder (1) axis direction (22), the axis hole (22) is located at institute
At 1/2 position for stating piston (2) axial length.
9. piston limit structure according to claim 8, feature are being,
The sliding slot (21) is set to the axis hole (22) along at least side in the front and rear sides of the piston axis direction.
10. piston limit structure according to claim 3, which is characterized in that
The locating part (3) is limit plate.
11. piston limit structure according to claim 3, which is characterized in that
The locating part (3) is cylindrical position-limitting pin.
12. a kind of compressor characterized by comprising
Shaft (6)；
According to claim 1, to 11 described in any item piston limit structures, the shaft (6) is successively pierced by the cylinder (1)
With the piston (2), the shaft (6) drives the piston (2) and the cylinder (1) rotation；And
Cylinder jacket (7), the cylinder (1) is set in the cylinder jacket (7) and the rotation in the cylinder jacket (7).
13. a kind of heat exchange equipment, which is characterized in that including the described in any item piston limit structures of claim 1 to 12.
14. heat exchange equipment according to claim 13, which is characterized in that the heat exchange equipment is air-conditioning.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811555294.9A CN109555694A (en) | 2018-12-18 | 2018-12-18 | Piston limit structure, compressor and heat exchange equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811555294.9A CN109555694A (en) | 2018-12-18 | 2018-12-18 | Piston limit structure, compressor and heat exchange equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109555694A true CN109555694A (en) | 2019-04-02 |
Family
ID=65870375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811555294.9A Pending CN109555694A (en) | 2018-12-18 | 2018-12-18 | Piston limit structure, compressor and heat exchange equipment |
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| Country | Link |
|---|---|
| CN (1) | CN109555694A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125099A1 (en) * | 2018-12-18 | 2020-06-25 | 珠海格力电器股份有限公司 | Piston limiting structure, compressor, and heat exchange apparatus |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2303969A (en) * | 1940-08-03 | 1942-12-01 | Falk Corp | Pump |
| CN106065854A (en) * | 2016-07-28 | 2016-11-02 | 珠海格力节能环保制冷技术研究中心有限公司 | One turns cylinder piston compressor |
| CN209414158U (en) * | 2018-12-18 | 2019-09-20 | 珠海格力电器股份有限公司 | Piston limit structure, compressor and heat exchange equipment |
-
2018
- 2018-12-18 CN CN201811555294.9A patent/CN109555694A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2303969A (en) * | 1940-08-03 | 1942-12-01 | Falk Corp | Pump |
| CN106065854A (en) * | 2016-07-28 | 2016-11-02 | 珠海格力节能环保制冷技术研究中心有限公司 | One turns cylinder piston compressor |
| CN209414158U (en) * | 2018-12-18 | 2019-09-20 | 珠海格力电器股份有限公司 | Piston limit structure, compressor and heat exchange equipment |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020125099A1 (en) * | 2018-12-18 | 2020-06-25 | 珠海格力电器股份有限公司 | Piston limiting structure, compressor, and heat exchange apparatus |
| US11788530B2 (en) | 2018-12-18 | 2023-10-17 | Gree Electric Applicances, Inc. of ZHUHAI | Piston limiting structure, compressor, and heat exchange apparatus |
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