CN100375838C - Compressing device for piston type compressor and producing method thereof - Google Patents
Compressing device for piston type compressor and producing method thereof Download PDFInfo
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- CN100375838C CN100375838C CNB031297846A CN03129784A CN100375838C CN 100375838 C CN100375838 C CN 100375838C CN B031297846 A CNB031297846 A CN B031297846A CN 03129784 A CN03129784 A CN 03129784A CN 100375838 C CN100375838 C CN 100375838C
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Abstract
The present invention relates to a compressing device of a piston compressor and a making method thereof. The compressing device comprises a piston body, a compressing component and a guiding component, wherein the compressing component and the guiding component are fixed to the piston body. The making method comprises: the compressing component and the guiding component are made; a casting mould of the piston is made; the ready-made compressing component and the guiding component are respectively fixed in an inner cavity of the mould for making the piston according to the technical requirements; a nonmagnetic material is poured in the mould, so that the compressing component and the guiding component form an integral piston casting with the piston body; the mould is removed, and the piston is taken out. The present invention has the advantages that the piston of the present invention is cast from an aluminium material, both the compressing component fixed to the end of the piston body and the guiding component fixed to the outer surface of the piston body form an integral body with the piston body in a casting mode, and therefore, the piston body can make a reciprocating movement without being influenced by a piston motor. Since the piston is cast from the aluminium material, the piston is light in weight so that the movement performance of the piston is enhanced; thus, the compression efficiency of the piston compressor is enhanced.
Description
Technical field
What the present invention relates to is piston compressor, particularly be compression set of piston compressor and preparation method thereof.
Background technique
In general, constitute the compressor of cycle refrigerating plant, the cold oil of the low-temp low-pressure state that to be compression flow into from the vaporizer of compressor is compressed into the state of High Temperature High Pressure with it, again the machine that its is discharged.
According to the compress mode difference to oil, compressor can be divided into rotary compressor, piston compressor, bolt type compressor or the like.Piston compressor wherein, piston is along straight line motion, and oil is sucked and compresses.Above-mentioned piston compressor includes following dual mode substantially: a kind of is the to-and-fro motion that rotatablely moving of drive motor is converted to piston, finishes the mode that absorbs the compression oil body; Another kind is that drive motor moves along straight line, drives piston simultaneously and moves back and forth, thereby finish the mode that absorbs the compression oil body.
As shown in Figure 1 and Figure 2, existing compressor mainly comprises following components: promptly, connect the airtight shell 10 of oily vapour suction pipe (SP) and oily vapour discharge tube (DP); Be arranged on shell 10 inner rubber-like holder devices 20; Be fixed on the above-mentioned holder device 20, and the piston type motor 30 that moves back and forth along straight line of rotor 33; Be combined on the rotor 33 of piston type motor 30 compression set of being supported by holder device 20 40; Along moving direction, the rotor 33 of elasticity supporting piston formula motor 30, thus cause the resonant spring device 50 that rotor 33 carries out resonance motion.
Above-mentioned holder device 20 comprises: comprise the front carriage 21 of supporting compressed stent 40; Be combined on the front carriage 21 intermediate support 22 of supporting piston formula motor 30 front sides; Be combined on the intermediate support 22 posterior bracket 23 of supports compressor rear side.
Above-mentioned piston type motor 30 includes: be arranged on the outer stator 31 between intermediate support 22 and the posterior bracket 23; At interval the certain distance of outer stator 31 is inserted the inside stator 32 that is combined on the posterior bracket 23; Be arranged between outer stator 31 and the inside stator 32, and the rotor 33 that moves back and forth along straight line.
Above-mentioned compression set 40 includes: with the cylinder 41 of front carriage 21 formation one; Be combined on the rotor 33 of piston type motor 30 piston 42 that in the compression volume P1 of cylinder 41, moves back and forth; Be installed in the end of piston 42, the suction passage F of switch plunger 42, the suction valve 43 that restriction oil gas sucks; Be installed in discharge one side of cylinder 41, switch compression volume P, and the expulsion valve assemblying body 70 of the discharge of restriction oil gas constitutes.
Above-mentioned resonant spring device 50 includes: be combined in the spring support platform 51 on the joint of rotor 33 and piston 42; With spring support platform 51 is the center, supports the front side resonant spring 52 of support platform 51 front sides; Support the rear side resonant spring 53 of the rear side of spring support platform 51.
Working procedure as the piston compressor of above-mentioned existing structure is as follows:
At first, the piston type motor 30 of above-mentioned piston compressor inside is connected power supply, will form magnetic flux between outer stator 31 and the inside stator 32.Be placed on the rotor 33 between outer stator 31 and the inside stator 32, will move along flux directions, simultaneously according to resonant spring device 50, continue to move back and forth, at this moment, 42 in piston can move back and forth in the inside of cylinder 41, thereby makes the volume of compression volume P change.Thus oil gas is drawn into compression volume and compresses, then again the oil gas that compresses is discharged.A series of like this correlated process can be carried out repeatedly.
But, the piston compressor of existing structure, under the driving of piston type motor 30, the piston 42 that is made of magnetic moves back and forth in cylinder 41 inside, piston 42 can be subjected to the certain influence of piston type motor 30, and because piston 42 forms with cast inblock, so its weight is very big, and then the inefficient defective of piston 42 to-and-fro motion appears.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, a kind of air cylinder structure and shape by improving piston compressor is provided, can reduce its weight, can improve the compression set and preparation method thereof of piston compressor of the sport efficiency of piston again.
Solving the problems of the technologies described above the technological scheme that is adopted is:
A kind of compression set of piston compressor, this compression set includes: moved back and forth in the inside of cylinder by the driving of piston type motor, its inside has the piston body of certain-length guiding oil gas suction passage, and described piston body is the aluminium of non magnetic material; Be installed in the piston body end, its external diameter contacts with cylinder surfaces and sucks oil gas and to its compression member of compressing, have the suction port of guiding oil gas on the described compression member, and suction port is connected with suction passage, compression volume; Be combined on the outer surface of piston body and at the reciprocates inside contact cylinder surfaces of cylinder, to the guide element of its channeling conduct.
A kind of making method of compression set of piston compressor, this making method is undertaken by following step:
1). at first make compression member and guide element;
2). make the compression set casting mould;
3). will make good compression member and guide element and be separately fixed in the making compression set casting mould inner chamber by technical requirements;
4). to the inside of above-mentioned casting mould cast nonmagnetic substance, the piston foundry goods that compression member and guide element and piston body are formed as one;
5). remove mould, take out the piston foundry goods.
The invention has the beneficial effects as follows: form because the present invention is cast by aluminium material at the piston of the reciprocates inside of cylinder, in the end of the piston body hard-wired compression member of casting method; On the piston body outer surface, fixedly mount guide element with casting method, can be so that piston stably moves back and forth along cylinder surfaces, so it can not be subjected to the influence of piston type motor and move back and forth; Because what use is aluminum material, thus the weight saving of piston, thus improved the exercise performance of piston.The piston compressor compression efficiency is risen.
Description of drawings
Fig. 1 is the sectional arrangement drawing of existing piston compressor;
Fig. 2 is the strabismus stereogram of piston among Fig. 1;
Fig. 3 is the sectional arrangement drawing that the present invention has the internal structure of compression set piston compressor;
Fig. 4 is the sectional arrangement drawing of piston among Fig. 3;
Fig. 5 is an A-A sectional drawing among Fig. 4;
Fig. 6 is a B-B sectional drawing among Fig. 4.
Embodiment
In order to reach purpose of the present invention as mentioned above, the compression set of piston compressor includes: moved back and forth in the inside of cylinder 141 by the driving of piston type motor 30, its inside has the piston body 145 of certain-length guiding oil gas suction passage F, and described piston body 145 is aluminiums of non magnetic material; Be installed in piston body 145 ends, its external diameter contacts with cylinder 141 internal surfaces and sucks oil gas and to its compression member of compressing 146, the suction port 146b that has guiding oil gas on the described compression member 146, and suction port 146b is connected with suction passage F, compression volume P; Be combined on the outer surface of piston body 145 and at reciprocates inside contact cylinder 141 internal surfaces of cylinder 141, to the guide element 147 of its channeling conduct.
Described compression member 146 and guide portion 147 are to form parts by the material different with piston body 145.
Described compression member 146 is cylindric, be formed with fixed groove 146a within it on the side with certain area and deep recess, on fixed groove 146a, prolong the suction port 146b be through with guiding oil gas, the fixedly hanging groove 146c of foundry goods is arranged at the internal surface upper edge radial direction recess of the fixed groove 146a of depression.
Described guide element 147 is column cylinders, have on the surface within it a plurality of be used to connect fixed piston body 145 and along radial direction with the certain height depression with prolong the fixed groove 147b that forms along its length.
Compression set for the embodiments of the invention piston compressor is described in further detail with reference to the accompanying drawings:
Wherein identical with existing structure part is given identical symbol and is described.
As shown in the figure, as the piston compressor of embodiments of the invention, be to comprise following components: promptly comprise the airtight shell 10 that is connected with oily vapour suction pipe SP and oily vapour discharge tube DP; Be arranged on shell 10 inside, resilient holder device 20; Be fixed on the holder device 20, and the piston type motor 30 that moves back and forth along straight line of rotor 33; Be combined on the rotor 33 of piston type motor 30 compression set of being supported by holder device 20 140; Along moving direction, the rotor 33 of elastic support piston type motor 30, thus cause the resonant spring device 50 that rotor 33 carries out resonance motion.
As mentioned above, in the piston compressor of the embodiment of the invention, except compression set 140 has the improvement, other parts are all identical with existing structure, therefore, and for holder device 20, piston type motor 30, the structure of resonant spring device 50 is not elaborated at this with reference to Fig. 1.
Above-mentioned compression set 140 includes: with the cylinder 141 of front carriage 21 1 sides formation one, these front carriage 21 opposite sides are combined on the rotor 33 of piston type motor 30; The compression set that in the compression volume P1 of cylinder 141, moves back and forth; Be installed in the end of compression set, the suction passage F of switch compression set, the suction valve 143 that restriction oil gas sucks; Be installed in discharge one side of cylinder 141, switch compression volume P1, and the expulsion valve assemblying body 170 that restriction oil gas is discharged.
The structure of above-mentioned cylinder 141 includes: combine with the rotor 33 of piston type motor 30, and be subjected to the driving of piston type motor its inside that moves back and forth in the inside of cylinder 141 that the piston main body 145 of the guiding oil vapour suction passage F of certain-length is arranged; Be installed in an end of piston main body 145, and suck with the internal diameter sliding fit of cylinder 141 and the compression member 146 of compressed oil vapour; Be combined in the outer surface of piston main body 145, when piston moves back and forth in the inside of cylinder 141, contact and guide the guide element 147 of its motion with the inside of cylinder 141.
Above-mentioned piston main body 145 is cast with aluminium material and is formed.The fixed groove 146a that forms depression with the certain area and the degree of depth is arranged on compression member 146 inner side surfaces cylindraceous.In order to make oil gas can be drawn into compression volume P along suction passage F, on the length direction of fixed groove 146a, perforation is formed with suction port 146b.Radial direction is recessed to form the mouth hanging 146c that is used for casting technique fixed piston main body 145 aluminum castings in the inner side surface upper edge of fixed groove 146a.Guide element 147 is drums, its external diameter and cylinder 141 internal diameter sliding fits, and its internal diameter is consistent with suction passage F external diameter, has a plurality of piston main body 145 casting techniques that are used for to connect the fixedly fixed groove 147b of aluminum casting within it on the 147a of side.This fixed groove 147b is to radial direction, and with the certain height depression, prolongation alongst forms.And fixed groove 147b connects on the inner side surface of guide element.
When above-mentioned compression set moves reciprocatingly in the inside of cylinder 141, its manufacture method is: contacted the guide element 147 of guiding function with the internal diameter of cylinder 141 and contacted with internal diameter with cylinder 141 and suck and the compression member 146 of compression oil gas all is fixed on the compression set dies cavity, inject nonmagnetic substance at inner chamber then to this mould, make it form piston body 145 foundry goods that become one with compression member 146 and guide element 147, and then the removal mould, thereby make.
Have aforesaid structure, the working procedure of the piston compressor of an example of the present invention is as follows.
At first, the piston type motor 30 of piston compressor of the present invention inside is connected power supply, will form magnetic flux between outer stator 31 and the inside stator 32.At this moment, be placed on the rotor 33 between outer stator 31 and the inside stator 32, will move along flux directions, according to resonant spring device 50, the to-and-fro motion that continues, compression set then can move back and forth in the inside of cylinder 141, thereby makes the volume of compression volume P1 change.Thus oil gas is drawn into compression volume and compresses, then again the oil gas that compresses is discharged.A series of like this correlated process can be performed repeatedly.
A kind of making method of compression set of piston compressor, this making method is undertaken by following step:
1). at first make compression member 146 and guide element 147;
2). make the compression set casting mould;
3). will make good compression member 146 and guide element 147 and be separately fixed in the making compression set casting mould inner chamber by technical requirements;
4). to the inside of above-mentioned casting mould cast nonmagnetic substance, the compression set foundry goods that compression member 146 and guide element 147 and piston body 145 are formed as one;
5). remove mould, take out the compression set foundry goods.
As mentioned above, compression set according to piston compressor of the present invention, being compression set when moving back and forth in the inside of cylinder 141, is can suck oil gas and to its compression member of compressing 146 be fixed on the outer surface of piston body 145 and compression set is stably formed along the guide element 147 that the internal surface of cylinder 141 moves back and forth by being fixed as one with piston body 145 ends of making foundry goods at aluminium material.Compression member 146 is finished sucked oil gas and this oil gas is carried out compression process, the final compression volume P that discharges; And guide element 147 guiding compression sets can move back and forth stably along the internal surface of cylinder 141.
Claims (5)
1. the compression set of a piston compressor, it is characterized in that this compression set includes: moved back and forth in the inside of cylinder (141) by the driving of piston type motor (30), its inside has the piston body (145) of certain-length guiding oil gas suction passage (F), and described piston body (145) is the aluminium of non magnetic material; Be installed in piston body (145) end, its external diameter contacts with cylinder (141) internal surface and sucks oil gas and to its compression member of compressing (146), the suction (146b) that has guiding oil gas on the described compression member (146), and suction port (146b) is connected with suction passage (F), compression volume (P); Be combined on the outer surface of piston body (145) and at reciprocates inside contact cylinder (141) internal surface of cylinder (141), to the guide element (147) of its channeling conduct.
2. according to the compression set described in the claim 1, it is characterized in that compression member (146) and guide element (147) are to form parts by the material different with piston body (145).
3. according to the compression set described in the claim 1, it is characterized in that described compression member (146) is cylindric, be formed with on the side within it with certain area and the fixed groove of deep recess (146a), go up to prolong the suction (146b) that is through with guiding oil gas at fixed groove (146a), the fixedly hanging groove of foundry goods (146c) is arranged at the internal surface upper edge radial direction recess of the fixed groove (146a) of depression.
4. according to the compression set described in the claim 1, it is characterized in that described guide element (147) is the column cylinder, have on the surface within it a plurality of be used to connect fixed piston body (145) and along radial direction with the certain height depression with prolong the fixed groove (147b) that forms along its length.
5. make the making method of the compression set of piston compressor according to claim 1 for one kind, it is characterized in that this making method undertaken by following step:
1). at first make compression member (146) and guide element (147);
2). make the compression set casting mould;
3). will make good compression member (146) and guide element (147) and be separately fixed in the making compression set casting mould inner chamber by technical requirements;
4). to the inside of above-mentioned casting mould cast nonmagnetic substance, the compression set foundry goods that compression member (146) and guide element (147) and piston body (145) are formed as one;
5). remove mould, take out the compression set foundry goods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031297846A CN100375838C (en) | 2003-05-20 | 2003-05-20 | Compressing device for piston type compressor and producing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031297846A CN100375838C (en) | 2003-05-20 | 2003-05-20 | Compressing device for piston type compressor and producing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1548721A CN1548721A (en) | 2004-11-24 |
| CN100375838C true CN100375838C (en) | 2008-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031297846A Expired - Fee Related CN100375838C (en) | 2003-05-20 | 2003-05-20 | Compressing device for piston type compressor and producing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100375838C (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988817A (en) * | 1995-09-29 | 1997-03-31 | Matsushita Refrig Co Ltd | Vibration-type compressor |
| CN1199826A (en) * | 1997-05-21 | 1998-11-25 | 高桥重雄 | Non-oiling piston for pump. its producing method and pump using the same piston |
| CN1285471A (en) * | 1999-08-19 | 2001-02-28 | Lg电子株式会社 | Linear compressor |
| US6250895B1 (en) * | 1998-08-11 | 2001-06-26 | Matsushita Electric Industrial Co., Ltd. | Linear compressor |
| CN1316594A (en) * | 2000-03-03 | 2001-10-10 | 沙厄-丹福丝股份有限公司 | Piston for hydraulic cylinder |
| US6554588B1 (en) * | 1999-04-09 | 2003-04-29 | Ulka Srl | Composite piston for a vibration pump |
-
2003
- 2003-05-20 CN CNB031297846A patent/CN100375838C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988817A (en) * | 1995-09-29 | 1997-03-31 | Matsushita Refrig Co Ltd | Vibration-type compressor |
| CN1199826A (en) * | 1997-05-21 | 1998-11-25 | 高桥重雄 | Non-oiling piston for pump. its producing method and pump using the same piston |
| US6250895B1 (en) * | 1998-08-11 | 2001-06-26 | Matsushita Electric Industrial Co., Ltd. | Linear compressor |
| US6554588B1 (en) * | 1999-04-09 | 2003-04-29 | Ulka Srl | Composite piston for a vibration pump |
| CN1285471A (en) * | 1999-08-19 | 2001-02-28 | Lg电子株式会社 | Linear compressor |
| CN1316594A (en) * | 2000-03-03 | 2001-10-10 | 沙厄-丹福丝股份有限公司 | Piston for hydraulic cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1548721A (en) | 2004-11-24 |
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Granted publication date: 20080319 |