CN116480555B - Two-stage compression refrigeration cycle compressor - Google Patents
Two-stage compression refrigeration cycle compressor Download PDFInfo
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- CN116480555B CN116480555B CN202310514608.5A CN202310514608A CN116480555B CN 116480555 B CN116480555 B CN 116480555B CN 202310514608 A CN202310514608 A CN 202310514608A CN 116480555 B CN116480555 B CN 116480555B
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- 238000007906 compression Methods 0.000 title claims abstract description 34
- 230000006835 compression Effects 0.000 title claims abstract description 30
- 238000005057 refrigeration Methods 0.000 title claims abstract description 27
- 230000002093 peripheral effect Effects 0.000 claims abstract description 46
- 238000013016 damping Methods 0.000 claims abstract description 36
- 230000030279 gene silencing Effects 0.000 claims abstract description 27
- 230000035939 shock Effects 0.000 claims abstract description 20
- 230000000670 limiting effect Effects 0.000 claims description 21
- 230000000694 effects Effects 0.000 abstract description 17
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 230000002457 bidirectional effect Effects 0.000 description 18
- 230000009471 action Effects 0.000 description 7
- 230000009286 beneficial effect Effects 0.000 description 7
- 230000009467 reduction Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 230000002829 reductive effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
- 239000002699 waste material Substances 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
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/06—Combinations of two or more pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention relates to the technical field of compressors, in particular to a two-stage compression refrigeration cycle compressor. The invention relates to a double-stage compression refrigeration cycle compressor, which comprises a crankcase, wherein a cavity is formed in the crankcase, a plurality of elastic cushion blocks are fixedly connected to the inner peripheral wall of the cavity, a silencing sleeve is fixedly connected to the opposite positions of the plurality of elastic cushion blocks, a plurality of elbows are symmetrically arranged at two ends of the silencing sleeve, a straight rod is fixedly connected to the end part of the elbow, the end part of the straight rod is fixedly connected with the inner peripheral wall of the cavity, a motor is fixedly connected to the front surface of the crankcase, and a rotating disc is fixedly connected to the outer peripheral wall of an output shaft of the motor, and the double-stage compression refrigeration cycle compressor has the following advantages that: this doublestage compression refrigeration cycle compressor can be through damping spring's elasticity, cushions the shock attenuation through the buffering of blotter in the buffering of dashpot and the effect of blotter with the vibration force that produces when the conflict of shock attenuation roof and cylinder inner peripheral wall to can make the noise that the piston roof produced because of the vibration when moving weaken from this, with this effect of making an uproar that reaches the shock attenuation.
Description
Technical Field
The invention relates to the technical field of compressors, in particular to a two-stage compression refrigeration cycle compressor.
Background
The two-stage compression refrigerator is realized by dividing the compression process into two times, namely, the refrigerant vapor with the pressure of P0 from the evaporator is compressed to the middle pressure Pm by a low-pressure compressor (or the low-pressure stage of the compressor) and then is compressed to the condensing pressure by a high-pressure compressor (or the high-pressure stage of the compressor). Thus, it requires the use of two compressors, or the use of a dual stage compressor. At present, for piston type and screw type compressors, a high-pressure compressor and a low-pressure compressor are not designed and produced specifically for the requirement of two-stage compression refrigeration cycle, but a single-stage compressor is selected to combine into a two-stage compression refrigerator; or the 8-cylinder (or 4-cylinder) single-stage piston compressor is modified and designed into a single-machine double-stage compressor, and the ratio of the number of high-pressure-stage cylinders to the number of low-pressure-stage cylinders is 1:3.
the existing two-stage compression refrigeration cycle compressor generates larger noise and vibration along with the movement of a piston when the refrigeration compressor acts, and no effective means for inhibiting the noise and vibration exists at present, so that noise pollution is formed, and the environment is damaged.
Disclosure of Invention
The invention aims at the technical problems in the prior art and provides a two-stage compression refrigeration cycle compressor to solve the problem that pigment is difficult to waste when cloth is printed by the prior two-stage compression refrigeration cycle compressor.
The technical scheme for solving the technical problems is as follows: the utility model provides a doublestage compression refrigeration cycle compressor, including the crankcase, the cavity has been seted up in the crankcase, the interior perisporium fixedly connected with a plurality of elasticity cushion of cavity, the opposite direction position fixedly connected with amortization sleeve of a plurality of elasticity cushion, amortization sleeve's both ends symmetry is provided with a plurality of elbows, the tip fixedly connected with straight-bar of elbow, the tip and the interior perisporium fixedly connected with of cavity of straight-bar, the positive fixedly connected with motor of crankcase, the output shaft perisporium fixedly connected with rolling disc of motor, one side rotation of rolling disc is connected with the connecting rod, the tip rotation of connecting rod is connected with the cross head, one side rotation of cross head is connected with the piston rod, the connecting rod passes through the cross head and articulates with the piston rod and links to each other, the piston rod runs through in the amortization sleeve.
The beneficial effects of the invention are as follows:
the double-stage compression refrigeration cycle compressor is better in effect, the double-stage compression refrigeration cycle compressor is improved on the basis of the prior art, when the piston rod moves, the silencing sleeve surrounds the outer peripheral wall of the piston rod, the elastic cushion block is abutted between the silencing sleeve and the inner peripheral wall of the cavity to be used as buffer, meanwhile, the silencing sleeve is limited by the plurality of elbows and the straight rods, so that the double-stage compression refrigeration cycle compressor can keep a vertical state and assist the piston rod to move correspondingly, and through the action of the silencing sleeve, the piston rod can normally move, and can be used for silencing friction noise generated when the piston rod moves and damping the friction noise generated when the piston rod moves, and the elastic cushion block is used for damping the working part at the position, so that noise pollution is not formed, and the double-stage compression refrigeration cycle compressor is more beneficial to use.
On the basis of the technical scheme, the invention can be improved as follows.
Further, the tip fixedly connected with piston bottom plate of piston rod, the both sides fixedly connected with damping spring of piston bottom plate, damping spring's tip fixedly connected with piston roof, fixedly connected with gag lever post in the middle of the bottom of piston roof, the tip fixedly connected with blotter of gag lever post, the periphery wall of blotter is provided with the dashpot, and the dashpot is seted up in the piston rod.
The piston bottom plate is fixed at the end part of the piston rod, the damping springs are arranged at the two sides of the piston bottom plate, the end parts of the damping springs are fixed with the piston top plate, so that damping elasticity is achieved between the piston top plate and the piston bottom plate, then the limiting rod is arranged in the middle of the bottom part of the damping top plate, the end parts of the limiting rod are fixed with the buffer cushion, the buffer grooves formed in the peripheral wall of the buffer cushion are formed in the piston rod, and therefore the limiting rod can limit the piston top plate, so that the piston top plate and the piston bottom plate are in a parallel state, meanwhile, the piston rod can carry out reciprocating compression on gas in a cylinder together with the piston top plate when in piston motion, in the compression process of the piston rod, vibration force generated when the damping top plate is in collision with the inner peripheral wall of the cylinder is buffered and damped through the buffer cushion of the buffer cushion, so that noise generated by vibration of the piston top plate can be weakened accordingly, and the damping noise reduction effect can be achieved.
Further, the top fixedly connected with cylinder of crankcase, one of them side of cylinder is provided with the admission valve, and the other side of cylinder is provided with discharge valve, and the internal perisporium symmetry of cylinder is provided with two guide rails, two the equal suit of perisporium of guide rail is connected with the shock pad, and the perisporium of two guide rails all is provided with spacing guide slot, and the both sides of piston roof are seted up to two spacing guide slot symmetries, and one of them opening part of spacing guide slot is provided with the scraper ring, and another one of them opening part of spacing guide slot is provided with the guide block, scraper ring and guide block all with piston roof fixed connection, a plurality of amortization holes have been seted up to the perisporium of guide rail.
The beneficial effect of adopting above-mentioned further scheme is, two guide rails symmetry set up in the internal perisporium of cylinder, and set up the shock pad and fix with the apron at the perisporium of guide rail, so that have the absorbing effect between guide rail and the apron, then be connected guide rail and the roof through seting up in the spacing guide slot of roof both sides, and spacing with this, so that the roof can carry out the piston motion along the guide rail, and because two opening parts of spacing guide slot set up oil scraper ring and guide block respectively, so as to guarantee that the roof obtains normal motion, and when the roof moves to the apron position, can make roof and shock pad conflict, then avoid roof and apron collision to produce the noise through the effect of shock pad, simultaneously because the amortization hole is seted up in the perisporium of guide rail, and by amortization hole between guide rail and spacing guide slot when the roof motion and the noise that produces when reducing the roof motion, reach the effect of making the amortization to the compressor.
Further, the inner peripheral wall fixedly connected with servo motor of cylinder, servo motor's output shaft end fixedly connected with two-way lead screw, the outer peripheral wall threaded connection of two-way lead screw has two thread bush pieces, and the bottom of two thread bush pieces is all articulated to be linked with the gangbar, and the tip of gangbar articulates to be linked to each other has the apron, apron and shock pad fixed connection and run through by the guide rail, and the top fixedly connected with of thread bush piece supports the slider, and the outer peripheral wall of supporting the slider is provided with the support spout, and the support spout is seted up in the cylinder.
The adoption of the further scheme has the beneficial effects that the height of the cover plate can be changed by taking the operation of the servo motor as the driving, so that the distance between the servo motor and the piston top plate is convenient for a user to adjust, namely, the volume between the servo motor and the piston top plate is in a controllable state, and the compressor can be more beneficial to the refrigeration work of the user according to corresponding requirements.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the front cross-sectional structure of the present invention;
FIG. 3 is a schematic perspective view of a piston bottom plate according to the present invention;
FIG. 4 is a schematic view of a partial top cross-sectional structure of a cylinder according to the present invention;
FIG. 5 is an enlarged schematic view of FIG. 2A;
FIG. 6 is an enlarged schematic view of the structure of FIG. 2 at B;
FIG. 7 is an enlarged schematic view of FIG. 2 at C;
fig. 8 is an enlarged schematic view of the structure of fig. 2 at D.
In the drawings, the list of components represented by the various numbers is as follows:
1. a crankcase; 101. a cavity; 102. an elastic cushion block; 103. a sound damping sleeve; 104. an elbow; 105. a straight rod; 2. a motor; 201. a rotating disc; 202. a connecting rod; 203. a cross head; 204. a piston rod; 3. a cylinder; 301. an intake valve; 302. an exhaust valve; 4. a piston base plate; 401. a damping spring; 402. a piston top plate; 403. a limit rod; 404. a cushion pad; 405. a buffer tank; 5. a guide rail; 501. a shock pad; 502. a limiting guide groove; 503. oil scraper rings; 504. a guide block; 505. a sound deadening hole; 6. a servo motor; 601. a two-way screw rod; 602. a threaded sleeve block; 603. a support slider; 604. a supporting chute; 605. a linkage rod; 606. and a cover plate.
Detailed Description
The principles and features of the present invention are described below with reference to the drawings, the examples are illustrated for the purpose of illustrating the invention and are not to be construed as limiting the scope of the invention.
The two-stage compression refrigerator is realized by dividing the compression process into two times, namely, the refrigerant vapor with the pressure of P0 from the evaporator is compressed to the middle pressure Pm by a low-pressure compressor (or the low-pressure stage of the compressor) and then is compressed to the condensing pressure by a high-pressure compressor (or the high-pressure stage of the compressor). Thus, it requires the use of two compressors, or the use of a dual stage compressor. At present, for piston type and screw type compressors, a high-pressure compressor and a low-pressure compressor are not designed and produced specifically for the requirement of two-stage compression refrigeration cycle, but a single-stage compressor is selected to combine into a two-stage compression refrigerator; or the 8-cylinder (or 4-cylinder) single-stage piston compressor is modified and designed into a single-machine double-stage compressor, and the ratio of the number of high-pressure-stage cylinders to the number of low-pressure-stage cylinders is 1:3, a two-stage compression refrigeration cycle compressor is proposed to solve the above problems.
The present invention provides the following preferred embodiments
As shown in fig. 1-8, the two-stage compression refrigeration cycle compressor comprises a crank case 1, a cavity 101 is arranged in the crank case 1, a plurality of elastic cushion blocks 102 are fixedly connected to the inner peripheral wall of the cavity 101, a silencing sleeve 103 is fixedly connected to opposite positions of the plurality of elastic cushion blocks 102, a plurality of elbows 104 are symmetrically arranged at two ends of the silencing sleeve 103, a straight rod 105 is fixedly connected to the end part of the elbow 104, the end part of the straight rod 105 is fixedly connected to the inner peripheral wall of the cavity 101, a motor 2 is fixedly connected to the front surface of the crank case 1, a rotating disc 201 is fixedly connected to the outer peripheral wall of an output shaft of the motor 2, a connecting rod 202 is rotatably connected to one side of the rotating disc 201, a cross head 203 is rotatably connected to the end part of the connecting rod 202, a piston rod 204 is rotatably connected to one side of the cross head 203 through the cross head 203 and is hinged to the piston rod 204, the piston rod 204 penetrates through the silencing sleeve 103, the motor 2 is arranged on the front surface of the crank case 1, the rotating disc 201 is arranged on the peripheral wall of the output shaft of the motor 2, the rotating disc 201 is positioned in the cavity 101, then after the motor 2 runs, the rotating disc 201 can be driven to rotate in the cavity 101, after a connecting rod 202 on one side of the rotating disc 201 is hinged and connected with a piston rod 204 through a cross head 203, the piston rod 204 is connected with the piston rod to move in the cavity 101, in the process, a silencing sleeve 103 surrounds the peripheral wall of the piston rod 204, an elastic cushion block 102 is abutted between the silencing sleeve 103 and the inner peripheral wall of the cavity 101 to serve as buffering, meanwhile, a plurality of elbows 104 and straight rods 105 limit the silencing sleeve 103, so that the silencing sleeve can keep a vertical state and assist the piston rod 204 to move correspondingly, and through the action of the silencing sleeve 103, the piston rod 204 can normally move, and the piston rod 204 can be subjected to noise reduction with generated friction noise during movement and vibration reduction by the elastic cushion block 102, so that noise pollution cannot be formed by working parts, and the working parts are more beneficial to use.
In this embodiment, as shown in fig. 1, 2, 3 and 5, in order to further improve the damping effect of the compressor, the end portion of the piston rod 204 is fixedly connected with the piston bottom plate 4, two sides of the piston bottom plate 4 are fixedly connected with the damping springs 401, the end portion of the damping springs 401 is fixedly connected with the piston top plate 402, a stop lever 403 is fixedly connected with the middle of the bottom of the piston top plate 402, the end portion of the stop lever 403 is fixedly connected with a buffer pad 404, the outer peripheral wall of the buffer pad 404 is provided with a buffer groove 405, the buffer groove 405 is opened in the piston rod 204, the piston bottom plate 4 is fixed at the end portion of the piston rod 204, and damping springs 401 are arranged at two sides of the piston bottom plate 4, and the end portion of the damping springs 401 are fixed with the piston top plate 402, so that the piston top plate 402 and the piston bottom plate 401 have damping elasticity, then, as the bottom middle of the damping top plate 4402 is provided with a stop lever 403, and the end portion of the stop lever 403 are fixed with the piston top plate 404, and the buffer groove 405 arranged in the piston rod 204 is opened in the middle of the bottom of the piston plate 402, thereby the piston top plate 402 is limited by the stop lever 403, the buffer groove 405, the piston top plate 402 and the piston top plate 4 is made to have a buffer effect, and the piston top plate 4 and the piston plate 4 can be compressed in parallel with the piston top plate 204, and the piston plate 3, and the piston plate can move in the piston top plate can and the piston plate can have a damping effect when the piston plate and the piston plate has a damping effect.
In this embodiment, as shown in fig. 1, 2, 4 and 6, in order to further enhance the silencing effect of the compressor, the top of the crankcase 1 is fixedly connected with the cylinder 3, one side of the cylinder 3 is provided with the air inlet valve 301, the other side of the cylinder 3 is provided with the air outlet valve 302, the inner peripheral wall of the cylinder 3 is symmetrically provided with two guide rails 5, the outer peripheral walls of the two guide rails 5 are respectively sleeved with a shock pad 501, the outer peripheral walls of the two guide rails 5 are respectively provided with a limit guide groove 502, the two limit guide grooves 502 are symmetrically arranged on two sides of the piston top plate 402, one opening of the limit guide grooves 502 is provided with the oil scraping ring 503, the other opening of the limit guide groove 502 is provided with the guide block 504, the oil scraping ring 503 and the guide block 504 are fixedly connected with the piston top plate 402, the outer peripheral wall of the guide rail 5 is provided with a plurality of silencing holes 505, the two guide rails 5 are symmetrically arranged on the inner peripheral wall of the cylinder 3, and the outer peripheral wall of the guide rail 5 is provided with a shock pad 501 and a cover plate 606 for fixing, so that the guide rail 5 and the cover plate 606 have shock absorption effect, then the guide rail 5 is connected with the piston top plate 402 through a limiting guide groove 502 arranged at two sides of the piston top plate 402, and the piston top plate 402 is limited, so that the piston top plate 402 can move along the guide rail 5, and the two openings of the limiting guide groove 502 are respectively provided with a scraper ring 503 and a guide block 504, so that the piston top plate 402 can be ensured to normally move, and when the piston top plate 402 moves to the position of the cover plate 606, the piston top plate 402 can be abutted against the shock pad 501, then the piston top plate 402 is prevented from colliding with the cover plate 606 through the shock pad 501 to generate noise, and simultaneously, the silencing hole 505 is arranged at the outer peripheral wall of the guide rail 5, and the noise generated when the piston top plate 402 moves is reduced by the sound attenuation holes 505 between the guide rail 5 and the limit guide groove 502 when the piston top plate 402 moves, so that the effect of noise attenuation and noise reduction of the compressor is achieved.
In this embodiment, as shown in fig. 1, 2 and 7, in order to further improve the capacity-variable control effect of the compressor, the inner peripheral wall of the cylinder 3 is fixedly connected with a servo motor 6, the end part of the output shaft of the servo motor 6 is fixedly connected with a bidirectional screw rod 601, the outer peripheral wall of the bidirectional screw rod 601 is in threaded connection with two threaded sleeve blocks 602, the bottoms of the two threaded sleeve blocks 602 are both hinged with a linkage rod 605, the end part of the linkage rod 605 is hinged with a cover plate 606, the cover plate 606 is fixedly connected with the shock pad 501 and penetrated by the guide rail 5, the top of the threaded sleeve block 602 is fixedly connected with a supporting slide block 603, the outer peripheral wall of the supporting slide block 603 is provided with a supporting slide groove 604, the supporting slide groove 604 is opened in the cylinder 3, the servo motor 6 is arranged in the cylinder 3 and fixes the end part of the output shaft of the servo motor 6 with the bidirectional screw rod 601, the outer peripheral wall of the bidirectional screw rod 601 is in threaded connection with the two threaded sleeve blocks 602, the bidirectional screw rod 601 can make two threaded sleeve blocks 602 move oppositely on the bidirectional screw rod 601 after rotating, then the threaded sleeve blocks 602 are hinged with the linkage rod 605 to connect the linkage rod 605 with the cover plate 606, meanwhile, the two linkage rods 605 are in a crossed state, and the positions of the linkage rod 605 connected with the cover plate 606 cannot be changed, so that when the servo motor 6 operates to indirectly drive the threaded sleeve blocks 602 to move along the bidirectional screw rod 601, the crossing angle of the linkage rod 605 with the cover plate 606 and the bidirectional screw rod 601 is changed, the distance between the cover plate 606 and the bidirectional screw rod 601 is changed, on the basis, the top of the threaded sleeve blocks 602 is fixed with the supporting slide block 603, and the supporting slide block 603 is limited by the supporting slide groove 604, so that the height of the supporting slide block is not changed, and the supporting sliding blocks 603 and the threaded sleeve blocks 602 are supported by the supporting sliding grooves 604, so that after the distance between the cover plate 606 and the bidirectional screw rod 601 is changed, the height of the cover plate 606 is changed, the distance between the cover plate 606 and the piston top plate 402 is changed, namely, the volume formed between the cover plate 606 and the piston top plate 402 is in a controllable state, and a user can correspondingly adjust according to the requirement, so that the user can conveniently use the compressor to perform refrigeration.
The specific working process of the invention is as follows:
(1) Drive motor 2
Firstly, the electric energy drives the motor 2 to operate so as to drive the piston rod 204 to operate, so that the piston rod 204 can perform piston motion in the cavity 101 and drive the piston top plate 402 to compress the gas in the cylinder 3;
(2) The intake valve 301 and the exhaust valve 302 replace the gas in the cylinder 3
Then, the gas in the cylinder 3 is replaced by the intake valve 301 and the exhaust valve 302 according to the compression of the gas in the piston top plate 402, so that the gas in the cylinder 3 can be continuously compressed by the piston top plate 402.
(3) Adjusting volume
The cover plate 606 can then be varied in height with the operation of the servo motor 6 as a drive to allow for easy adjustment by the user of the spacing from the piston top plate 402, i.e., the volume therebetween is in a controlled state.
(4) Shock-absorbing and silencing device
Finally, vibration generated by the piston top plate 402 in the moving process is weakened through the damping action of the damping spring 401 and the damping action of the buffer pad 404 and the buffer groove 405, so that the effects of damping and noise reduction are achieved, and then the sound generated by the piston top plate 402 in the moving process is eliminated through the damping pad 501 and the silencing hole 505.
To sum up: the double-stage compression refrigeration cycle compressor has the advantages that the structure is improved on the basis of the prior art, the double-stage compression refrigeration cycle compressor is better in effect, the motor 2 is arranged on the front face of the crankcase 1, the rotating disc 201 is arranged on the peripheral wall of the output shaft of the motor 2, the rotating disc 201 is positioned in the cavity 101, after the motor 2 runs, the rotating disc 201 can be driven to rotate in the cavity 101, after a connecting rod 202 on one side of the rotating disc 201 is hinged with a piston rod 204 through a cross head 203, the piston rod 204 is connected in the cavity 101 in a hinged manner, in the process, the silencing sleeve 103 surrounds the peripheral wall of the piston rod 204, an elastic cushion block 102 is abutted between the silencing sleeve 103 and the inner peripheral wall of the cavity 101 to serve as a buffer, meanwhile, the silencing sleeve 103 is limited by a plurality of elbows 104 and straight rods 105, so that the piston rod 204 can keep a vertical state and assist the piston rod 204 to move correspondingly, and through the action of the silencing sleeve 103, the piston rod 204 can move normally, friction noise generated when moving can be silenced, and the piston rod 204 is working by the elastic cushion block 102, so that a working part cannot be more beneficial to the noise reduction;
when the structure is used, the piston bottom plate 4 is fixed at the end part of the piston rod 204, the damping springs 401 are arranged at the two sides of the piston bottom plate 4, the end parts of the damping springs 401 are fixed with the piston top plate 402, so that the piston top plate 402 and the piston bottom plate 401 have damping elasticity, then, as the limiting rod 403 is arranged in the middle of the bottom part of the damping top plate 4402, the end parts of the limiting rod 403 are fixed with the cushion pad 404, and the buffer groove 405 arranged at the outer peripheral wall of the cushion pad 404 is arranged in the piston rod 204, the limiting rod 403 limits the piston top plate 402, so that the piston top plate 402 and the piston bottom plate 4 are in a parallel state, and meanwhile, the piston rod 204 can carry out reciprocating compression on gas in the cylinder 3 together with the piston top plate 402 during piston movement, and in the compression process, the vibration force generated during collision of the damping top plate 402 and the cylinder 3 is buffered and damped by the action of the cushion pad 404 through the buffering of the buffer groove 405, so that noise generated by vibration of the piston top plate 402 during movement can be attenuated, and the damping effect can be achieved;
when the structure is used, the two guide rails 5 are symmetrically arranged on the inner peripheral wall of the cylinder 3, the shock pad 501 and the cover plate 606 are arranged at the end part of the guide rail 5 to fix, so that shock absorption is realized between the guide rail 5 and the cover plate 606, then the guide rail 5 and the piston top plate 402 are connected through the limiting guide grooves 502 formed on the two sides of the piston top plate 402, the piston top plate 402 is limited by the limiting guide grooves, so that the piston top plate 402 can move along the guide rail 5, and the oil scraper rings 503 and the guide blocks 504 are respectively arranged at the two openings of the limiting guide grooves 502 to ensure that the piston top plate 402 can normally move, and when the piston top plate 402 moves to the position of the cover plate 606, the piston top plate 402 can be abutted against the shock pad 501, then the piston top plate 402 is prevented from colliding with the cover plate 606 to generate noise under the action of the shock pad 501, and meanwhile, the noise generated when the piston top plate 402 moves is reduced by the limiting guide grooves 505 formed between the guide rail 5 and the limiting guide grooves 502 when the piston top plate 402 moves, so that the noise generated when the piston top plate 402 moves is reduced.
When the structure is used, the servo motor 6 is arranged in the air cylinder 3, the end part of the output shaft of the servo motor 6 is fixed with the bidirectional screw rod 601, the peripheral wall of the bidirectional screw rod 601 is in threaded connection with the two threaded sleeve blocks 602, so that the bidirectional screw rod 601 can enable the two threaded sleeve blocks 602 to move oppositely on the bidirectional screw rod 601 after rotating, then the threaded sleeve blocks 602 are hinged with the linkage rod 605, the linkage rod 605 is connected with the cover plate 606, simultaneously the two linkage rods 605 are in a crossed state, the position where the linkage rod 605 is connected with the cover plate 606 cannot be changed, when the servo motor 6 operates to indirectly drive the threaded sleeve blocks 602 to move along the bidirectional screw rod 601, the crossing angle of the linkage rod 605 with the cover plate 606 and the bidirectional screw rod 601 is changed, the distance between the cover plate 606 and the bidirectional screw rod 601 is changed, on the basis, the top of the threaded sleeve block 602 is fixed with the supporting slide block 603, the supporting slide block 603 is limited by the supporting slide groove 604, the supporting slide block 603 and the threaded sleeve block 602 are supported by the supporting slide groove 604, after the distance between the cover plate 606 and the bidirectional screw rod 601 is changed, the height of the cover plate 606 is changed, so that the distance between the cover plate 606 and the piston top plate 402 is changed, namely, the volume formed between the cover plate 606 and the piston top plate 402 is in a controllable state, and therefore, a user can correspondingly adjust according to requirements, and the user can conveniently use the compressor to perform refrigeration.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (2)
1. The double-stage compression refrigeration cycle compressor is characterized by comprising a crankcase (1), wherein a cavity (101) is formed in the crankcase (1), a plurality of elastic cushion blocks (102) are fixedly connected to the inner peripheral wall of the cavity (101), a silencing sleeve (103) is fixedly connected to opposite positions of the elastic cushion blocks (102), a plurality of elbows (104) are symmetrically arranged at two ends of the silencing sleeve (103), a straight rod (105) is fixedly connected to the end part of the elbow (104), and the end part of the straight rod (105) is fixedly connected with the inner peripheral wall of the cavity (101); the front of the crankcase (1) is fixedly connected with a motor (2), the peripheral wall of an output shaft of the motor (2) is fixedly connected with a rotating disc (201), one side of the rotating disc (201) is rotationally connected with a connecting rod (202), and the end part of the connecting rod (202) is rotationally connected with a cross head (203); a piston rod (204) is rotatably connected to one side of the cross head (203), the connecting rod (202) is hinged with the piston rod (204) through the cross head (203), and the piston rod (204) penetrates through the silencing sleeve (103); the end part of the piston rod (204) is fixedly connected with a piston bottom plate (4), two sides of the piston bottom plate (4) are fixedly connected with damping springs (401), the end part of each damping spring (401) is fixedly connected with a piston top plate (402), and a limiting rod (403) is fixedly connected in the middle of the bottom of each piston top plate (402); the end part of the limiting rod (403) is fixedly connected with a buffer pad (404), a buffer groove (405) is formed in the peripheral wall of the buffer pad (404), and the buffer groove (405) is formed in the piston rod (204); the top of the crankcase (1) is fixedly connected with a cylinder (3), one side of the cylinder (3) is provided with an air inlet valve (301), and the other side of the cylinder (3) is provided with an air outlet valve (302); two guide rails (5) are symmetrically arranged on the inner peripheral wall of the air cylinder (3), and damping pads (501) are sleeved on the outer peripheral walls of the two guide rails (5); the outer peripheral walls of the two guide rails (5) are provided with limiting guide grooves (502), and the two limiting guide grooves (502) are symmetrically arranged on two sides of the piston top plate (402); an oil scraper ring (503) is arranged at one opening of the limiting guide groove (502), a guide block (504) is arranged at the other opening of the limiting guide groove (502), and the oil scraper ring (503) and the guide block (504) are fixedly connected with the piston top plate (402); a plurality of silencing holes (505) are formed in the peripheral wall of the guide rail (5); the inner peripheral wall fixedly connected with servo motor (6) of cylinder (3), the output shaft end fixedly connected with two-way lead screw (601) of servo motor (6), the outer peripheral wall threaded connection of two-way lead screw (601) has two screw thread cover pieces (602), two the bottom of screw thread cover piece (602) all articulates and links to each other has gangbar (605), the tip of gangbar (605) articulates and links to each other there is apron (606), apron (606) with shock pad (501) fixed connection and by guided way (5) run through.
2. The two-stage compression refrigeration cycle compressor as set forth in claim 1, wherein a support slide block (603) is fixedly connected to the top of the threaded sleeve block (602), a support slide groove (604) is provided on the outer peripheral wall of the support slide block (603), and the support slide groove (604) is opened in the cylinder (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310514608.5A CN116480555B (en) | 2023-05-09 | 2023-05-09 | Two-stage compression refrigeration cycle compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310514608.5A CN116480555B (en) | 2023-05-09 | 2023-05-09 | Two-stage compression refrigeration cycle compressor |
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| CN116480555B true CN116480555B (en) | 2024-02-06 |
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| CN203098175U (en) * | 2012-10-29 | 2013-07-31 | 北京中盛华旭电子科技有限公司 | Metering pump with novel stepping motor control structure |
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| CN116480555A (en) | 2023-07-25 |
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