CN101634286A - Low-noise reciprocating piston compressor - Google Patents
Low-noise reciprocating piston compressor Download PDFInfo
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- CN101634286A CN101634286A CN200910115800A CN200910115800A CN101634286A CN 101634286 A CN101634286 A CN 101634286A CN 200910115800 A CN200910115800 A CN 200910115800A CN 200910115800 A CN200910115800 A CN 200910115800A CN 101634286 A CN101634286 A CN 101634286A
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Abstract
The invention belongs to the technical field of piston compressors and relates to a low-noise reciprocating piston compressor, comprising a motor, a piston body, a connecting rod, a cylinder and an air inlet and output device. The cylinder is connected on a transmission box body which is internally provided with a deceleration transmission gear; a spindle of the motor is connected to an input shaft of the deceleration transmission gear; an output shaft of the deceleration transmission mechanism is provided with a first eccentric shaft which is rotatably sleeved with a planetary gear; the transmission box is internally provided with a stationary gear; the planetary gear is engaged with the stationary gear; the planetary gear is provided with a second eccentric shaft; one end of the connecting rod is sleeved on the second eccentric shaft of the planetary gear; and the other end of the connecting rod is connected with the piston body. The invention has long piston stroke, little vibration, low noise, low exhaust temperature and long service life, and is suitable for producing pump bodies such as various types of reciprocating piston-type hydraulic pumps, vacuum pumps and cold air pumps or compressors.
Description
Technical field
The invention belongs to the piston compressor technical field, refer in particular to a kind of low-noise reciprocating piston compressor.
Background technique
At present, most Reciprocting piston compressor comprises oil hydraulic pump, water pump, vacuum pump and cold air pump etc., it mostly is the bent axle rotation that drives compressor with motor main shaft, and then by bent axle again drivening rod promote piston reciprocates in the compresser cylinder, thereby realize the cyclically-varying of swept volume in the cylinder.Obviously, what conventional reciprocating formula compressor adopted is typical brace and connecting rod framework, because bent axle is that bent axle is directly inserted within the attachment hole of connnecting rod big end with being connected of connecting rod, the microcephaly of connecting rod then is connected with piston by wrist pin, so the motion of connecting rod is essentially plane motion: the major part of connecting rod is done the circumference rotation with bent axle on the one hand, the microcephaly of connecting rod does reciprocating linear motion with piston on the other hand, that is there is oscillating motion in connecting rod.It is the power of a swing that constantly changes by the power that wrist pin affacts on the piston that the above-mentioned motion mode of connecting rod has caused connecting rod, undoubtedly like this can bring some drawbacks: at first cause piston when work cylinder to be produced and bounce and cause bigger noise; Next causes piston that cylinder is produced bigger side pressure and frictional force and causes the compressor power consumption to increase and make its lost of life.
Summary of the invention
The purpose of this invention is to provide a kind of shake little, noise is low and the low-noise reciprocating piston compressor of long service life.
The object of the present invention is achieved like this:
Low-noise reciprocating piston compressor, comprise motor, piston body, connecting rod, cylinder and intake and exhaust device, cylinder is connected on the transmission case body, be provided with reduction gearing mechanism in the transmission case body, wherein the main shaft of motor is connected to the input shaft of reduction gearing mechanism, and after slowing down from the output shaft outputting power and the motion of reduction gearing mechanism, described output shaft is provided with first eccentric shaft, rotating sleeve is equipped with a planetary pinion on first eccentric shaft, the axis coaxle of the planetary axis and first eccentric shaft (allowing to exist certain foozle and alignment error); A fixed gear is installed, the axis coaxle of the axis of fixed gear and reduction gearing mechanism output shaft (allowing to exist certain foozle and alignment error) in transmission case body; The transmission that is meshing with each other of planetary pinion and fixed gear, planetary pinion is at the driving lower edge of first eccentric shaft fixing tooth crop rotation rolling motion, in other words, planetary pinion is made spinning motion around the axis of self on the one hand and is made revolution motion around the axis of fixed gear simultaneously on the other hand; Planetary pinion is provided with second eccentric shaft, its optimum structure scheme is: the parallel axes setting of the axis of this second eccentric shaft and first eccentric shaft (allowing to exist certain manufacture deviation and installation deviation), and the axis of second eccentric shaft intersects and vertical with the pitch circle plane (allowing to exist certain manufacture deviation and installation deviation equally) with planetary pitch circle, obviously when planetary pinion and fixed gear are master gear, they overlap with standard pitch circle by pitch circle separately, and when they were modified gear, they did not overlap with standard pitch circle by pitch circle separately; One end of connecting rod is sleeved on planetary second eccentric shaft, the other end of connecting rod is connected with piston body, it is to be noted, connecting rod can be connected by the mode of wrist pin with piston body, also can be fastenedly connected, even connecting rod and piston body can be made an integral body with modes such as bolts.
Above-mentioned reduction gearing mechanism is: the turbine and worm reducing gear; Or reduction gears mechanism; Or pulley decelerates mechanism.
Above-mentioned cylinder can be one of following four kinds of forms:
(1) single-acting single casing: the cylinder head of cylinder one end is provided with intake and exhaust device;
(2) double-action single-cylinder formula: on the cylinder head at cylinder two ends, be respectively arranged with intake and exhaust device;
(3) symmetrical single-acting two-cylinder type: the bilateral symmetry at transmission case body is provided with single-acting single casing cylinder, and the connecting rod that connects each cylinder all is socketed on second eccentric shaft, and the cylinder head of each cylinder is provided with intake and exhaust device;
(4) symmetric double effect two-cylinder type: the bilateral symmetry at transmission case body is provided with double-action two-cylinder type cylinder, and the connecting rod that connects each cylinder all is socketed on second eccentric shaft, is respectively arranged with intake and exhaust device on the cylinder head at each cylinder two ends.
The number of teeth of said fixing gear is 2: 1 with the ratio of the planetary number of teeth, the diameter of fixed gear pitch circle is the twice of planetary pinion pitch diameter in other words, by mathematical knowledge as can be known, the movement locus of the axis of second eccentric shaft on the planetary pinion of this moment, must be the past complex line by the fixed gear axis, in other words the whole motion of the motion of connecting rod and even piston body is linear reciprocating motion.
The joint of the joint of above-mentioned first eccentric shaft and planetary joint, second eccentric shaft and connecting rod and the input shaft of reduction gearing mechanism and output shaft and transmission case body is provided with bearing, and bearing can be that rolling bearing also can be a sliding bearing.
The purposes of low-noise reciprocating piston compressor can be used for oil hydraulic pump, water pump, vacuum pump and cold air pump.
The outstanding compared to existing technology advantage of the present invention is:
(1) the present invention makes the reciprocating frequency of connecting rod and piston reduce, so help reducing the noise of compressor owing to be provided with reduction gearing mechanism;
(2) the present invention is because the motion itself of piston body is straight reciprocating motion, so it can not produce cylinder and bounce action, so can reduce the noise of compressor;
(3) the present invention is owing to adopt planetary wheeling mechanism, and the motion that makes connecting rod and piston body is straight reciprocating motion, so piston body do not produce side pressure to cylinder, thus the friction power loss minimizing, long service life.
Description of drawings
Fig. 1 is one of the partial sectional view of the compressor of double-action single-cylinder formula cylinder of the present invention;
Fig. 2 be double-action single-cylinder formula cylinder of the present invention compressor partial sectional view two;
Fig. 3 is the compressor operating view of the planetary pinion of the compressor of double-action single-cylinder formula cylinder of the present invention when being in four limit positions respectively;
In the sectional view of Fig. 3: dotted arrow is represented the direction of ventilating, and the heavy line arrow is represented the moving direction of connecting rod and piston body, and the fine line arrow is represented first eccentric shaft and planetary sense of rotation;
Fig. 4 is the structural representation of the compressor of single-acting single casing cylinder of the present invention;
Fig. 5 is the structural representation of the compressor of double-action single-cylinder formula cylinder of the present invention;
Fig. 6 is the structural representation of the compressor of symmetrical single-acting two-cylinder type of the present invention;
Fig. 7 is the structural representation of the compressor of symmetric double effect two-cylinder type of the present invention;
Fig. 8 is the stereochemical structure partial schematic sectional view of the compressor of double-action single-cylinder formula cylinder of the present invention.
Embodiment
With specific embodiment the present invention is further described below, referring to Fig. 1-8:
Low-noise reciprocating piston compressor, it comprises motor 1, piston body 2, connecting rod 3, cylinder 4, transmission case body 5 and intake and exhaust device, cylinder 4 is connected on the transmission case body 5, be provided with reduction gearing mechanism in the transmission case body 5, wherein the main shaft of motor is connected to the input shaft 61 of reduction gearing mechanism, and after slowing down from output shaft 62 outputting powers and the motion of reduction gearing mechanism, described output shaft 62 is provided with first eccentric shaft 63, rotating sleeve is equipped with a planetary pinion 7 on first eccentric shaft 63, planetary pinion 7 and first eccentric shaft, 63 coaxial line O1 (allowing to exist certain foozle and alignment error); A fixed gear 8 is installed, the output shaft 62 coaxial line O2 (allowing to exist certain foozle and alignment error) of fixed gear 8 and reduction gearing mechanism in transmission case body 5; The transmission that is meshing with each other of described planetary pinion 7 and this fixed gear 8, planetary pinion 7 is made rolling motion at the driving lower edge of first eccentric shaft 63 fixed gear 8, in other words, make spinning motion around the axes O 1 of self makes revolution motion around the axes O 2 of fixed gear 8 to planetary pinion 7 on the other hand simultaneously on the one hand; Planetary pinion 7 is provided with second eccentric shaft 64, the axes O 3 of this second eccentric shaft 64 and the axes O 1 of first eccentric shaft 63 be arranged in parallel (allowing to exist certain manufacture deviation and installation deviation), and the axes O 3 of second eccentric shaft 64 intersects and vertical with the pitch circle plane (allowing to exist certain manufacture deviation and installation deviation equally) with the pitch circle of planetary pinion 7, obviously when planetary pinion 7 and fixed gear 8 are master gear, they overlap with standard pitch circle by pitch circle separately, and when they were modified gear, they did not overlap with standard pitch circle by pitch circle separately; One end of connecting rod 3 is sleeved on second eccentric shaft 64 of planetary pinion 7, the other end of connecting rod 3 is connected with piston body 2, it is to be noted, connecting rod 3 can be connected by the mode of wrist pin with piston body 2, also can be fastenedly connected, even connecting rod 3 and piston body 2 can be made an integral body with modes such as bolts.
Above-mentioned reduction gearing mechanism is: turbine and worm reducing gear (as shown in the figure); Or reduction gears mechanism; Or pulley decelerates mechanism.
Above-mentioned turbine and worm reducing gear is: the main shaft of motor is connected to the input shaft 61 (being worm screw) of reduction gearing mechanism, and after slowing down from output shaft 62 (being turbine shaft) outputting power and the motion of reduction gearing mechanism, wherein input shaft 61 (being worm screw) is the spatial vertical state with output shaft 62 (being turbine shaft);
Above-mentioned reduction gears mechanism is: according to the general reduction gears mechanism of needs design of speed change, its middle gear can be conventional cylindrical gears, helical gear or bevel gear etc.;
Above-mentioned pulley decelerates mechanism is: the belt that the gearing down of small belt pulley band big belt pulley is used is dull and stereotyped belt or is with synchronously.
Above-mentioned cylinder 4 can be one of following four kinds of forms:
(1) single-acting single casing: a cylinder 4 is set, and in the outer end of this cylinder 4 outer end cylinder head 91 is set, it is provided with a cover intake and exhaust device, referring to Fig. 4;
(2) double-action single-cylinder formula a: cylinder 4 is set, and outer end cylinder head 91 is set, inner cylinder head 92 is set in the inner of this cylinder 4, be provided with intake and exhaust device on outer end cylinder head 91 and the inner cylinder head 92, referring to Fig. 5 in the outer end of this cylinder 4;
(3) symmetrical single-acting two-cylinder type: be symmetrical arranged two cylinders 4, and outer end cylinder head 91 being set in the outer end of each cylinder 4, it is provided with intake and exhaust device, is provided with piston body 2 and connecting rod 3 in each cylinder 4, wherein an end of connecting rod 3 all is sleeved on second eccentric shaft 64, referring to Fig. 6;
(4) symmetric double effect two-cylinder type: be symmetrical arranged two cylinders 4, and outer end cylinder head 91 is set in the outer end of each cylinder 4, inner cylinder head 92 is set in the inner of each cylinder 4 simultaneously, it is provided with intake and exhaust device, be provided with piston body 2 and connecting rod 3 in each cylinder 4, wherein an end of connecting rod 3 all is sleeved on second eccentric shaft 64, referring to Fig. 7.
Need to prove that when cylinder 4 adopted above-mentioned (3) and (4) to plant twin-tub structural type, two connecting rods can be made overall structure.
The number of teeth of said fixing gear 8 is 2:1 with the optimum value of the ratio of the number of teeth of planetary pinion 7, the diameter of fixed gear 8 pitch circles is twices of planetary pinion 7 pitch diameters in other words, by mathematical knowledge as can be known, the movement locus of the axes O 1 of second eccentric shaft 64 on the planetary pinion 7 of this moment, must be past complex line by fixed gear 8 axes O 2, in other words the whole motion of the motion of connecting rod 3 and even piston body 2 is linear reciprocating motion, compressor operating view when the planetary pinion 7 that Fig. 3 has provided the compressor of double-action single-cylinder formula cylinder of the present invention is in four limit positions respectively, be not difficult to find, under the constraint of fixed gear 8, the movement locus of the axes O 1 of second eccentric shaft 64 on the planetary pinion 7 is straight line really.
It must be noted that when the axes O 3 and the pitch circle of planetary pinion 7 of second eccentric shaft 64 were non-intersect, this moment, the motion of connecting rod 3 was the compound motion of to-and-fro motion and oscillating motion.
The joint of the joint of above-mentioned first eccentric shaft 63 and planetary pinion 7, second eccentric shaft 64 and connecting rod 3 and the input shaft 61 of reduction gearing mechanism and output shaft 62 are provided with bearing with the joint of transmission case body, and bearing can be that rolling bearing also can be a sliding bearing.
The purposes of low-noise reciprocating piston compressor can be used for being made into the pump housings such as various oil hydraulic pumps, water pump, vacuum pump and cold air pump.
The foregoing description is one of preferred embodiment of the present invention only, is not to limit protection scope of the present invention according to this, so: all various equivalences of doing according to structure of the present invention, shape and principle change, and all should be covered by within protection scope of the present invention.
Claims (8)
1, low-noise reciprocating piston compressor, comprise motor, piston body, connecting rod, cylinder and intake and exhaust device, it is characterized in that cylinder is connected on the transmission case body, be provided with reduction gearing mechanism in the transmission case body, the main shaft of motor is connected to the input shaft of reduction gearing mechanism, the output shaft of reduction gearing mechanism is provided with first eccentric shaft, rotating sleeve is equipped with a planetary pinion on first eccentric shaft, a fixed gear is installed in transmission case body, the transmission that is meshing with each other of planetary pinion and fixed gear, planetary pinion is provided with second eccentric shaft, one end of connecting rod is sleeved on planetary second eccentric shaft, and the other end of connecting rod is connected with piston body.
2, low-noise reciprocating piston compressor according to claim 1 is characterized in that: described reduction gearing mechanism is: the turbine and worm reducing gear; Or reduction gears mechanism; Or pulley decelerates mechanism.
3, low-noise reciprocating piston compressor according to claim 1 is characterized in that: described cylinder can be one of following four kinds of forms:
(1) single-acting single casing: the cylinder head of cylinder one end is provided with intake and exhaust device;
(2) double-action single-cylinder formula: on the cylinder head at cylinder two ends, be respectively arranged with intake and exhaust device;
(3) symmetrical single-acting two-cylinder type: the bilateral symmetry at transmission case body is provided with single-acting single casing cylinder, and the connecting rod that connects each cylinder all is socketed on second eccentric shaft, and the cylinder head of each cylinder is provided with intake and exhaust device;
(4) symmetric double effect two-cylinder type: the bilateral symmetry at transmission case body is provided with double-action two-cylinder type cylinder, and the connecting rod that connects each cylinder all is socketed on second eccentric shaft, is respectively arranged with intake and exhaust device on the cylinder head at each cylinder two ends.
4, low-noise reciprocating piston compressor according to claim 3 is characterized in that: when cylinder adopted twin-tub structural type, two connecting rods can be made overall structure.
5, low-noise reciprocating piston compressor according to claim 1 is characterized in that: the number of teeth of described fixed gear is 2: 1 with the ratio of the planetary number of teeth.
6, low-noise reciprocating piston compressor according to claim 1 is characterized in that: the joint of the joint of above-mentioned first eccentric shaft and planetary joint, second eccentric shaft and connecting rod and the input shaft of reduction gearing mechanism and output shaft and transmission case body is provided with bearing.
7, low-noise reciprocating piston compressor according to claim 6 is characterized in that: described bearing is rolling bearing or sliding bearing.
8, the purposes of low-noise reciprocating piston compressor can be used for oil hydraulic pump, water pump, vacuum pump and cold air pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910115800A CN101634286A (en) | 2009-07-30 | 2009-07-30 | Low-noise reciprocating piston compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910115800A CN101634286A (en) | 2009-07-30 | 2009-07-30 | Low-noise reciprocating piston compressor |
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| CN101634286A true CN101634286A (en) | 2010-01-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910115800A Pending CN101634286A (en) | 2009-07-30 | 2009-07-30 | Low-noise reciprocating piston compressor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091723A (en) * | 2010-12-10 | 2011-06-15 | 苏州建莱机械工程技术有限公司 | Planet-connecting rod driving device |
| CN102494099A (en) * | 2011-12-19 | 2012-06-13 | 中国南方航空工业(集团)有限公司 | Crank planetary gear mechanism |
| CN104454451A (en) * | 2014-12-02 | 2015-03-25 | 黄石东贝电器股份有限公司 | Single-cylinder double-exhaust refrigeration compressor |
| CN105626453A (en) * | 2016-03-04 | 2016-06-01 | 安徽工程大学 | Piston compressor and movement inertia force balancing method for piston compressor |
| CN110067732A (en) * | 2019-05-21 | 2019-07-30 | 惠州市通晟智能科技有限公司 | Hand electric air pump |
| CN110821773A (en) * | 2019-11-18 | 2020-02-21 | 西南石油大学 | Novel reciprocating pump power end structure |
| CN113389703A (en) * | 2021-06-29 | 2021-09-14 | 顾亚辉 | Double-cylinder vacuum pump |
-
2009
- 2009-07-30 CN CN200910115800A patent/CN101634286A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091723A (en) * | 2010-12-10 | 2011-06-15 | 苏州建莱机械工程技术有限公司 | Planet-connecting rod driving device |
| CN102494099A (en) * | 2011-12-19 | 2012-06-13 | 中国南方航空工业(集团)有限公司 | Crank planetary gear mechanism |
| CN102494099B (en) * | 2011-12-19 | 2014-12-03 | 中国南方航空工业(集团)有限公司 | Crank planetary gear mechanism |
| CN104454451A (en) * | 2014-12-02 | 2015-03-25 | 黄石东贝电器股份有限公司 | Single-cylinder double-exhaust refrigeration compressor |
| CN105626453A (en) * | 2016-03-04 | 2016-06-01 | 安徽工程大学 | Piston compressor and movement inertia force balancing method for piston compressor |
| CN105626453B (en) * | 2016-03-04 | 2018-05-25 | 安徽工程大学 | A kind of motion inertia force balance method of piston compressor and piston compressor |
| CN110067732A (en) * | 2019-05-21 | 2019-07-30 | 惠州市通晟智能科技有限公司 | Hand electric air pump |
| CN110067732B (en) * | 2019-05-21 | 2024-05-17 | 惠州市通晟智能科技有限公司 | Hand-held electric air pump |
| CN110821773A (en) * | 2019-11-18 | 2020-02-21 | 西南石油大学 | Novel reciprocating pump power end structure |
| CN113389703A (en) * | 2021-06-29 | 2021-09-14 | 顾亚辉 | Double-cylinder vacuum pump |
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Open date: 20100127 |