CN201502501U - Straight-line reciprocating piston compressor - Google Patents
Straight-line reciprocating piston compressor Download PDFInfo
- Publication number
- CN201502501U CN201502501U CN2009201894129U CN200920189412U CN201502501U CN 201502501 U CN201502501 U CN 201502501U CN 2009201894129 U CN2009201894129 U CN 2009201894129U CN 200920189412 U CN200920189412 U CN 200920189412U CN 201502501 U CN201502501 U CN 201502501U
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- reciprocating piston
- roller
- linear reciprocating
- type compressor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model belongs to the field of compressors, and relates to a straight-line reciprocating piston compressor comprising a crank pin, a connecting bar, two pistons and two air cylinders, wherein the both pistons and the both air cylinders are oppositely arranged; the pistons are arranged in the air cylinders and are in slide fit therewith; two ends of the connecting bar are respectively connected with the both pistons; a middle area of the connecting bar is provided with two guide rails parallel to each other and is provided with an articulated connecting bar; the end part of the articulated connecting bar is provided with a shaft pin which is rotatably sleeved with a roller; and the roller is in contact fit with the guide rails in a rotating way. The two guide rails of the straight-line reciprocating piston compressor are respectively responsible for driving a piston to make 'compression stroke' and simultaneously driving another piston to make 'suction stroke', and alternately work, thereby effectively reducing even fully eliminating fit clearances between the roller and the guide rails, reducing both friction and impact noise, and being used for manufacturing compressors, vacuum pumps, hydraulic pumps and water pumps.
Description
Technical field
The utility model belongs to mechanical engineering technical field, particularly a kind of linear reciprocating piston type compressor.
Background technique
As everyone knows, present compressor mainly uses the crank-connecting rod reciprocating mechanism, it mainly is made up of parts such as motor, crank, connecting rod and pistons, wherein an end and the crank pin of connecting rod are rotatably assorted, the other end of connecting rod cooperates with piston, realizes the reciprocating conversion with piston of rotatablely moving of crank thus.Obviously, the connecting rod of traditional crank linkage mechanism carries out work with the motion mode of swing, so the power that connecting rod affacts on the piston is the power of a swing, this power not only can cause piston that bouncing of cylinder produced noise, and can cause piston that cylinder action is had bigger side pressure and increases frictional loss.In order to overcome the above-mentioned drawback of traditional crank linkage mechanism, a kind of linear reciprocating piston type compressor scheme has appearred as depicted in figs. 1 and 2, this compression function reduces piston bouncing and rubbing cylinder effectively, it has the piston 1a of two opposed distributions, 1b and cylinder 2a, 2b, described piston 1a, the shared connecting rod 3 of 1b, offer a groove 4 at the middle part of connecting rod 3, be furnished with two guide rail 4a that are parallel to each other on the described groove 4,4b, the crank pin 5 of compressor inserts in the groove 4, rotating sleeve is equipped with a roller 6 on the crank pin 5, roller 6 and above-mentioned guide rail 4a, 4b cooperates; When crank rotates, crank pin 5 driven rollers 6 and then driving guide rail 4a, 4b are reciprocating by connecting rod 3 driven plunger 1a, 1b at last, under the constraint of cylinder 2a, 2b and connecting rod 3, the motion of piston 1a, 1b is linearly moved, the distance of noticing opposed two cylinder 2a, 2b is bigger, in other words working because of crank pin 5 departs from the cylinder heart line 0a of cylinder 2a, 2b, piston 1a, 1b that 0b causes are less to the side pressure of cylinder 2a, 2b; In order to reduce the negative effect of the inertial force that reciprocating part produced such as piston, connecting rod, adopt a centrifugal weights 55 that has strengthened quality especially, that is adopt so-called " excessive balance method " to tackle reciprocal inertia force.But, above-mentioned compressor still has the improvements of needs, show that mainly the matching gap of guide rail 4a, 4b and roller 6 is in the awkward condition of dilemma, if matching gap obtains too small, to make roller 6 touch two guide rail 4a, 4b very easily simultaneously, the result causes rolling smooth and increases frictional loss, and if both matching gaps obtain excessively, then will certainly cause roller 6 couples of guide rail 4a, 4b to produce bigger bumps and produce noise again.
Summary of the invention
The utility model provides a kind of linear reciprocating piston type compressor, and purpose is effectively to reduce the friction and the noise of compressor.
The purpose of this utility model is achieved in that
A kind of linear reciprocating piston type compressor, it comprises: motor, motor-driven crank and be connected the piston and the cylinder of the crank pin on the crank, a connecting rod, two opposed distributions, described piston is placed in the cylinder and is slidingly matched with it, the two ends of described connecting rod are connected with described two pistons respectively, it is characterized in that being provided with two guide rails that are parallel to each other in the central region of connecting rod, and be provided with slave connecting rod, the end of described slave connecting rod is provided with pivot pin, rotating sleeve is equipped with roller on the described pivot pin, roller and described guide rail rolling contact matching.
Above-mentioned guide rail is plate rail or protruding rail or recessed rail, and the transverse cross-sectional profile of guide rail can be straight wire, rectangular-shaped, trapezoid shaped or arc shape.
Above-mentioned cylinder adopt straight line to interposed structure or dislocation to interposed structure.
Above-mentioned roller is roll sleeve or rolling bearing or the slide block that contains rolling element.
Above-mentioned crank pin directly drives slave connecting rod or drives slave connecting rod indirectly by propeller boss.
Above-mentioned slave connecting rod has one or several.
Above-mentioned slave connecting rod is provided with the controlling device of eliminating the gap.
The utility model linear reciprocating piston type compressor adopts slave connecting rod, pivot pin and roller or rolling element to cooperate the organization plan of guide rail, when rotating, crank pin oppresses two guide rails respectively by above-mentioned member, and then reciprocating via the connecting rod driven plunger along cylinder, be straight line motion at the constraint lower piston of opposed cylinder and the motion of connecting rod; Obviously, each is responsible for above-mentioned two guide rails of the utility model driving a piston work " compression stroke " and drives another piston work " intake stroke " simultaneously, two guide rails alternately take turns to work, owing to carry out the driving structure of rail division type, therefore can effectively reduce and even the matching gap between eliminate roller and the guide rail fully, in other words can guarantee that roller and guide rail remain the rolling contact condition, so the utility model can be reduced friction and can be reduced impact noise.
The utility model can be used for making compressor, vacuum pump, oil hydraulic pump and water pump.
Description of drawings
Fig. 1 is the structural representation of a kind of linear reciprocating piston type compressor in the prior art;
Fig. 2 is the sectional view of existing linear reciprocating piston type compressor shown in Figure 1;
Fig. 3 is the positive cross-sectional schematic that the crank pin of the utility model directly drives slave connecting rod;
Fig. 4 is the sectional view that the utility model adopts the slide block that contains rolling element;
Fig. 5 is the side sectional view of cylinder of the present utility model during by the opposed scheme arrangement of straight line;
Side sectional view when Fig. 6 is a cylinder of the present utility model by the opposed scheme arrangement of dislocation;
Fig. 7 is the positive cross-sectional schematic that the crank pin of the utility model drives an embodiment of slave connecting rod indirectly;
Fig. 8 is the positive cross-sectional schematic that the crank pin of the utility model drives another embodiment of slave connecting rod indirectly.
Embodiment
With specific embodiment the utility model is further described below, referring to Fig. 3-8:
Fig. 3 to Fig. 8 has provided the structural representation of a kind of linear reciprocating piston type compressor of the utility model, and the label of part, title and function are inherited existing linear reciprocating piston type compressor illustrated in figures 1 and 2 among the figure.The utility model linear reciprocating piston type compressor comprises: motor, motor-driven crank and be connected crank pin 5 on the crank, the piston 1a of two opposed distributions, 1b and cylinder 2a, 2b, and connecting rod 3, described cylinder 2a, the axis 0a of 2b, 0b is arranged in parallel or coaxial setting (allowing to exist certain foozle and assembly error), described piston 1a, 1b is placed in cylinder 2a, also be slidingly matched with it in the 2b, the two ends of described connecting rod 3 respectively with two piston 1a, 1b connects, connecting rod 3 and piston 1a, the connection of 1b can be to be fastenedly connected or to be articulated and connected or simply for integrally manufactured; Central region at connecting rod 3 offers a groove 4, and the crank pin 5 of compressor inserts in this groove 4; Be furnished with two guide rail 4a, 4b that are parallel to each other on the connecting rod 3, described guide rail 4a, 4b can be vertical with axis 0a, the 0b of cylinder 2a, 2b also can out of plumb; Be provided with slave connecting rod 7 in addition, the quantity of slave connecting rod 7 can adopt one also can adopt several, dispose pivot pin 8 in the end of slave connecting rod 7, be set with roller 6 on the pivot pin 8, described roller 6 can be roll sleeve or rolling bearing, further roller 6 can also substitute with the slide block 66 that contains rolling element 666, wherein rolling element 666 can be roller, needle roller or ball, obviously, above-mentioned roller 6 or rolling element 666 under any circumstance only with above-mentioned two guide rail 4a, 4b in one carry out contact matching; It must be noted that guide rail 4a, 4b can make plate rail or protruding rail or recessed rail, and its transverse cross-sectional profile can be straight wire, rectangular-shaped, trapezoid shaped or arc shape, certain associated roller 6 or rolling element 666 preferably also have corresponding pattern; Need illustrate, when axis 0a, the 0b of cylinder 2a, 2b is cylinder 2a, 2b by the opposed topology layout of straight line during for coaxial state, cylinder 2a, 2b ratio are easier to processing at this moment, and when axis 0a, the 0b of cylinder 2a, 2b are the dislocation state, be cylinder 2a, 2b by the opposed topology layout of dislocation, this moment, cylinder 2a, 2b had anti-rotation binding function preferably to piston 1a, 1b and connecting rod 3, misplace opposed can misplace along the axial direction of crank pin 5 (as shown in Figure 6), the also (not shown) that can misplace along the radial direction of other directions such as crank pin 5; What be also pointed out that is, the crank pin 5 of compressor can directly drive slave connecting rod 7 also can drive slave connecting rod 7 indirectly, so-called directly the driving is meant and offers a hole on the slave connecting rod 7 and rotating sleeve is contained on the crank pin 5, certainly directly driving also comprise behind the crank pin 5 suit rolling bearings again with connecting rod 7 on a seat hole match, the so-called driving indirectly is meant that crank pin 5 drives slave connecting rods 7 by rotating sleeve dress propeller boss 9 thereon, and this moment, slave connecting rod 7 can be undertaken hingedly also can directly being fastenedly connected with propeller boss 9 with propeller boss 9 by pivot pin 8; For guarantee roller 6 or rolling element 666 when work can with guide rail 4a, 4b keeps excellent contact, that is allow them can remain the rolling state of contact, can take two measures: one of measure is the pretension assembling, promptly allow roller 6 or rolling element 666 and guide rail 4a, 4b has certain pretension contact force, can effectively eliminate their matching gap like this, two of measure is to ensure from configuration aspects, promptly adopt adjustable gap eliminator 10, gap eliminator 10 in this case is one and regulates bolt, it has at least an end to be connected with rotary slave connecting rod 7 usefulness worm structures, the slave connecting rod 7 usefulness hinge pins 8 of this rotation are hinged on the propeller boss 9, certainly best circumstance is that the two ends of regulating bolt are connected with two slave connecting rod 7 usefulness worm structures that are hinged on the propeller boss 9 respectively: wherein a kind of scheme is that two slave connecting rods 7 are subordinated to described two guide rail 4a respectively, one (as shown in Figure 7) among the 4b, another kind of scheme is that two slave connecting rods 7 are subordinated to described two guide rail 4a simultaneously, one (as shown in Figure 8) among the 4b, obviously can effectively regulate two guide rail 4a of the company of adhering to separately by gap eliminator 10, in other words the roller 6 of 4b or the distance between the rolling element 666 can regulate and eliminate roller 6 or rolling element 666 and guide rail 4a, the matching gap of 4b.
The utility model linear reciprocating piston type compressor adopts slave connecting rod 7, pivot pin 8, roller 6 or slide block 66 and rolling element 666 to cooperate the organization plan of guide rail 4a, 4b, above-mentioned member is oppressed two guide rail 4a, 4b respectively when crank pin 5 rotates, and then reciprocating via connecting rod 3 driven plunger 1a, 1b along cylinder 2a, 2b, be straight line motion at constraint lower piston 1a, the 1b of opposed cylinder 2a, 2b and the motion of connecting rod 3; Obviously, each is responsible for the utility model above-mentioned two guide rail 4a, 4b driving a piston 1a or 1b and makes " compression stroke " and drive another piston 1b simultaneously or 1a makes " intake stroke ", article two, guide rail 4a, 4b alternately take turns to work, owing to carry out the driving structure of rail division type, take to reduce and even the structure of eliminate roller 6 or rolling element 666 and guide rail 4a, 4b matching gap fully in addition, therefore can guarantee that roller 6 or rolling element 666 keep the rolling contact condition with guide rail 4a, 4b all the time, in other words the utility model can be reduced friction and can be reduced impact noise.
Special needs to be pointed out is that the utility model split-rail driving linear reciprocating compressor can be used for making compressor, vacuum pump, oil hydraulic pump, water pump and other fluid pump.
The foregoing description only is one of preferred embodiment of the present utility model; be not to limit protection domain of the present utility model according to this; so: all various equivalences of doing according to structure of the present utility model, shape and principle change, and all should be covered by within the protection domain of the present utility model.
Claims (7)
1. linear reciprocating piston type compressor, comprise: the piston and the cylinder of a crank pin, a connecting rod, two opposed distributions, described piston is placed in the cylinder and is slidingly matched with it, the two ends of described connecting rod are connected with described two pistons respectively, it is characterized in that being provided with two guide rails that are parallel to each other at the middle part of connecting rod, be provided with slave connecting rod in addition, the end of described slave connecting rod is provided with pivot pin, rotating sleeve is equipped with roller on the described pivot pin, roller and described guide rail rolling contact matching.
2. linear reciprocating piston type compressor according to claim 1 is characterized in that guide rail is plate rail or protruding rail or recessed rail, and the transverse cross-sectional profile of guide rail is straight wire, rectangular-shaped, trapezoid shaped or arc shape.
3. linear reciprocating piston type compressor according to claim 1 and 2, it is characterized in that described cylinder adopt straight line to interposed structure or dislocation to interposed structure.
4. linear reciprocating piston type compressor according to claim 3 is characterized in that described roller is roll sleeve or rolling bearing or the slide block that contains rolling element.
5. linear reciprocating piston type compressor according to claim 4 is characterized in that described crank pin directly drives slave connecting rod or drives slave connecting rod indirectly by propeller boss.
6. linear reciprocating piston type compressor according to claim 4 is characterized in that described slave connecting rod has one or several.
7. linear reciprocating piston type compressor according to claim 6 is characterized in that described slave connecting rod is provided with the controlling device of eliminating the gap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201894129U CN201502501U (en) | 2009-09-30 | 2009-09-30 | Straight-line reciprocating piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201894129U CN201502501U (en) | 2009-09-30 | 2009-09-30 | Straight-line reciprocating piston compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201502501U true CN201502501U (en) | 2010-06-09 |
Family
ID=42453435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201894129U Expired - Fee Related CN201502501U (en) | 2009-09-30 | 2009-09-30 | Straight-line reciprocating piston compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201502501U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275783A (en) * | 2014-07-21 | 2016-01-27 | Lg电子株式会社 | Linear compressor |
| CN107575358A (en) * | 2017-09-30 | 2018-01-12 | 京华派克邯郸机械科技有限公司 | A kind of rocking bar driven fluid power plant |
| US9890772B2 (en) | 2014-07-21 | 2018-02-13 | Lg Electronics Inc. | Linear compressor |
| CN111622918A (en) * | 2020-07-02 | 2020-09-04 | 衢州职业技术学院 | Self-offsetting vibration type air compressor |
-
2009
- 2009-09-30 CN CN2009201894129U patent/CN201502501U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105275783A (en) * | 2014-07-21 | 2016-01-27 | Lg电子株式会社 | Linear compressor |
| CN105275783B (en) * | 2014-07-21 | 2018-01-02 | Lg电子株式会社 | Linearkompressor |
| US9890772B2 (en) | 2014-07-21 | 2018-02-13 | Lg Electronics Inc. | Linear compressor |
| US9989051B2 (en) | 2014-07-21 | 2018-06-05 | Lg Electronics Inc. | Linear compressor |
| CN107575358A (en) * | 2017-09-30 | 2018-01-12 | 京华派克邯郸机械科技有限公司 | A kind of rocking bar driven fluid power plant |
| CN111622918A (en) * | 2020-07-02 | 2020-09-04 | 衢州职业技术学院 | Self-offsetting vibration type air compressor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101672264B (en) | Linearly-reciprocating piston compressor | |
| CN201502501U (en) | Straight-line reciprocating piston compressor | |
| CN101672257B (en) | Linear reciprocating motion mechanism | |
| CN101644246A (en) | Spin-orbit-type reciprocating piston compressor | |
| CN101672259A (en) | Gear slider type linear reciprocating mechanism | |
| CN110848110A (en) | Plunger pump | |
| CN202560499U (en) | Connecting rod piston shoes type wagon-flow allocation radial plunger pump | |
| WO1988003237A1 (en) | Rectilinear/rotary motion converter | |
| CN101672258A (en) | Gear connecting rod type linear reciprocating mechanism | |
| CN201502678U (en) | Gear slider type linear reciprocating mechanism | |
| CN201696279U (en) | Metering pump for eccentric stroke regulating mechanism | |
| CN201502677U (en) | Linear reciprocating motion mechanism with gears and connecting rods | |
| JP2018150938A5 (en) | ||
| CN107882723A (en) | A kind of Miniature diaphragm pump | |
| CN201739163U (en) | Guiding slip ring type sloping cam plate limiting mechanism | |
| CN107035639A (en) | A kind of shaft orientation plunger variable pump | |
| CN201391285Y (en) | Outer cycloidal walking-beam type oil pumping unit | |
| CN112873985B (en) | Dynamic balance structure of double-acting high-speed press | |
| CN201502676U (en) | Linear reciprocating mechanism | |
| CN207268294U (en) | A kind of cam drive | |
| CN101672263B (en) | Split-rail driving linear reciprocating compressor | |
| CN209040813U (en) | A kind of twin-well oil-pumping machine | |
| CN208106700U (en) | A kind of air compressor machine compression mechanism | |
| CN101672265B (en) | Linear-guidance restricting reciprocating piston compressor | |
| CN201507415U (en) | Separate rail driving linear reciprocating compressor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100609 Termination date: 20120930 |