CN203081683U - Four-cylinder compressor structure - Google Patents
Four-cylinder compressor structure Download PDFInfo
- Publication number
- CN203081683U CN203081683U CN 201220559452 CN201220559452U CN203081683U CN 203081683 U CN203081683 U CN 203081683U CN 201220559452 CN201220559452 CN 201220559452 CN 201220559452 U CN201220559452 U CN 201220559452U CN 203081683 U CN203081683 U CN 203081683U
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- chute
- connecting rod
- piston
- bent axle
- cylinder
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The utility model discloses a four-cylinder compressor structure. The four-cylinder compressor structure comprises a crank shaft and four air cylinders arranged on the crank shaft and driven by the crank shaft, wherein central axes of the four air cylinders and the central axis of the crank shaft are on the same plane, piston holes of the air cylinders are symmetrically arranged at two sides of the crank shaft in two pairs, pistons of the same pair of air cylinders are fixedly connected through the same connecting rod, a sliding chute is arranged in the middle of each connecting rod and crosswise passes through the central line in the length direction of the connecting rod, two sides of the central line of the crank shaft are provided with two staggered crank throws, the crosswise length of the sliding chutes on the connecting rods is matched with the rotating diameter of the crank throws, the width of the sliding chutes is matched with the diameter of the crank throws, the two crank throws are connected in the sliding chutes of the two connecting rods in a sliding manner respectively, and phase difference between movements of two cylinders at the same side of the crank shaft is 180 degrees. The four-cylinder compressor structure provided by the utility model is stable in operation, small in noise, long in service life and suitable for different types of compressors.
Description
Technical field
The utility model relates to a kind of compressor, relates in particular to a kind of low noise four cylinder compressor structures of improvement.
Background technique
The compressor of prior art extensively adopts crankshaft ﹠ connecting, and crankshaft rotating moves reciprocatingly by the connecting rod drive piston of swing, thereby finishes compressor function.But this structure piston is when to-and-fro motion, be not directly proportional between the displacement of crank angle degree and piston, when piston near on during lower dead center, the angle that bent axle turns over is big and the displacement of piston is very little.Under the condition that the bent axle constant angular velocity is rotated, piston is the cyclic process of acceleration-deceleration-acceleration-deceleration.Under this mode of operation, the one, the output torque of motor is little when big when being, and the 2nd, the mobile of piston is sometimes fast and sometimes slow; These two factors all can cause the not steady of compressor operating, cause vibration and when causing bigger noise, especially piston and carrying out compressed action, the caused noise of this unbalanced working state is more outstanding.For household electric appliance such as picture refrigerator, refrigerators, bigger noise will have a strong impact on people's life, be very big product defect.In addition, there are bigger wearing and tearing in the connecting rod of prior art compressor and the joint of piston for rotating or being slidingly connected, and have influenced the working life of compressor.Open day be that the patent document that April 1, publication number in 2009 are CN20121509lY discloses a kind of low noise compressor assembly, mainly solved the noise problems of too of traditional refrigeration compressor, refrigeration, air-conditioning, the heat-pump apparatus that uses this assembly to make can be directly installed on indoor, and need not reach every the noise device for it is provided with machine room.It comprises compressor, the sound proof housing of vibration isolation up and down that is welded by the steel plate punching press, high, low pressure vibration isolation pipe and draw joint, in, outer isolation mounting, the sealing protective ring of extracting power supply cord or transition tenminal block, be installed in the interior silencer of vibration isolation sound proof housing and the dividing wall type heat exchanger of cooling compressor, it is characterized in that compressor is installed in the vibration isolation sound proof housing by interior isolation mounting, the high low pressure exhaust sucking pipe of compressor by separately the vibration isolation pipe and draw joint, guide to outside the vibration isolation sound proof housing, the power of compressor line is guided to outside the vibration isolation sound proof housing by the sealing protective ring or the transition tenminal block that are contained on the vibration isolation sound proof housing, last vibration isolation sound proof housing adopts with following vibration isolation sound proof housing and guarantees that sealing technology is connected, and guarantees its tightness.The wall-type heat exchange apparatus of silencer and cooling compressor is housed in the vibration isolation sound proof housing, and the footing of vibration isolation sound proof housing links to each other with the chassis of equipment by outer isolation mounting.This structure reduces the noise of compressor by the sealing mode, and volume is very big, is only applicable to large-scale compressor.In addition, its piston of the compressor of prior art and connecting rod adopt hinging structure usually, connecting rod is except moving reciprocatingly with piston, also swing and do complicated plane motion, because the joint of connecting rod and piston is for being rotationally connected, therefore there are very big wearing and tearing, influenced the working life of compressor.Open day be that the patent document that April 2, publication number in 2008 are CN201043563Y discloses a kind of engine link, it is respectively equipped with the connecting rod small end and the connnecting rod big end of symmetry shape at the connecting rod shank upper and lower end, on deciliter face of connnecting rod big end, run through and locating stud is set and runs through connecting-rod bolts, before and after connnecting rod big end, offer strip Oil Guide groove on two planes, be provided with stiffening rib at the connecting rod small end top with connecting rod longitudinal center line symmetrical distribution projection.The molding when forging of this structure is convenient, has reduced processing cost, but the wearing and tearing of the wrist pin between connecting rod and piston problem big, that influence compressor working life still exists.
The model utility content
The purpose of this utility model be for the compressor operating that solves prior art unbalanced, the problem that noise is big and a kind of stable working, four cylinder compressor structures that noise is little are provided.
Second purpose of the present utility model is for its wrist pin wearing and tearing of compressor of solving prior art are big, influences the problem in compressor working life and a kind of four cylinder compressor structures of long service life are provided.
The utility model is to solve the problems of the technologies described above the technological scheme that is adopted to be: a kind of four cylinder compressor structures, comprise bent axle and be arranged on bent axle directly upwards and by four cylinders of this crank-driven, the central axis of four cylinders and the central axis of bent axle are at grade, the piston hole of cylinder divides two pairs of both sides that are symmetricly set on bent axle, piston with a pair of cylinder is fixedly connected by same connecting rod, the centre of connecting rod is provided with chute, chute is horizontally through the center line on the length of connecting rod direction, the center line both sides of bent axle are provided with two crank throws that dislocation is arranged, chute is suitable at the connecting rod length and the rotating diameter of crank throw transversely, the width of chute and the diameter of crank throw are suitable, two crank throws are slidingly connected at respectively in the chute of two connecting rods, and the phase difference between two cylinder piston motions of bent axle the same side is 180 degree.The equal hinging structure of the connecting rod of prior art and piston and bent axle, connecting rod is converted into the to-and-fro motion of piston with rotatablely moving of bent axle, thereby finishes the fundamental function of compressor.But this structure piston is not in direct ratio between the rotation angle of bent axle and the displacement of piston when to-and-fro motion, when piston near on during lower dead center, the angle that bent axle turns over is big and the displacement of piston is very little; On the contrary, piston is when the neutral position, and the angle that bent axle turns over is less and displacement piston is bigger.Under this mode of operation, little and piston mobile sometimes fast and sometimes slow when big during the output torque of motor, these two factors all can cause the not steady of compressor operating, cause vibration of compressor and cause bigger noise, when especially piston carried out compressed action, the caused noise of this unbalanced working state was more outstanding.And the utility model is fixed the relative position of connecting rod and piston, and being set, chute changes the rotation angle of bent axle in the prior art and the fixed relationship of piston displacement on connecting rod, direction or trench structure by chute cooperate the movement law that changes existing piston with bent axle, such as end in the compression stroke of piston, travelling speed by suitable raising piston, can slow down the not steady working state of compressor, reach the purpose that reduces to vibrate, reduce compressor noise.Chute of the present utility model connecting rod transversely length and described bent axle on the rotating diameter of crank throw suitable, the width of chute and the diameter of crank throw are suitable, crank throw is connected in the chute slidably.Because connecting rod and piston are overall structure, therefore connecting rod of the present utility model can't be swung, when bent axle rotates, crank throw on the bent axle rotates in chute and slidably reciprocates along groove, thereby drivening rod is done linear reciprocating motion, connecting rod drives piston and do linear reciprocating motion in the piston hole of cylinder, connecting rod central axis in the longitudinal direction all the time with the central axis of piston on same straight line.The utility model combines the to-and-fro motion that the rotation of bent axle is converted into piston by crank throw with chute, thereby realizes the function of compressor.Because the shape or the position of the utility model chute can be set according to actual needs, therefore can change the rotation angle of bent axle in the prior art and the fixed relationship of piston displacement, thereby make the more stable of compressor operating state.Two cylinder piston travel directions of the same side are opposite, and the vibration that its two pairs of piston unidirectional movements cause can be cancelled out each other, and therefore, noise can be reduced to minimum level.In addition, connecting rod of the present utility model is fixedlyed connected with piston, does not have the wrist pin of prior art, connecting rod only with bent axle on crank throw have relative movement, therefore, the wrist pin wear problem of prior art does not exist yet, thereby prolongs the working life of compressor.In addition, four cylinders of this structure can adopt the serial or parallel connection structure, to satisfy the different compressors that require.
As a kind of simple scheme of chute, the chute on the connecting rod is a straight-line groove, and the length direction of described chute and connecting rod is skewed setting, and the true dip direction of chute is consistent with crank throw sense of rotation on the bent axle, and described chute is a centrosymmetric structure.This structure changes the rotation angle of bent axle in the prior art and the fixed relationship of piston displacement by the chute that is obliquely installed.Straight-line groove has acceleration to this piston near the moving process of top dead center near one section of piston, and straight-line groove has decelerating effect away from one section of the piston moving process that this piston is left top dead center.The true dip direction of chute is consistent with crank throw sense of rotation on the bent axle, and then piston is compared with prior art bigger than normal in its displacement of end of compression stroke, and working state that can the constant compression machine reduces noise.
Alternative dispensing means as chute, chute on the connecting rod is S-shaped, the line at described chute head and the tail two ends and the length direction of connecting rod are skewed setting, and the true dip direction of chute is consistent with crank throw sense of rotation on the bent axle, and described chute is a centrosymmetric structure.The working principle of S shape chute and aforementioned straight-line groove are roughly the same, just the center line and the straight line of chute depart from, present certain twisted state, the grooved of this distortion cooperates with bent axle can further improve the rotation angle of bent axle and the relation of piston displacement, thereby the working state of further constant compression machine, reduce noise, S shape chute is formed by the curve bath butt joint of two sections structures that are centrosymmetric usually.
As preferably, the length direction of connecting rod is provided with oil duct, and an end of oil duct is positioned on the sidewall of chute, and described piston is provided with annular oil groove, and the other end of oil duct links to each other with annular oil groove by being arranged on the piston upper oil hole.
As preferably, connecting rod is structure as a whole or the segmentation spiro connection structure, and when adopting the segmentation spiro connection structure, the chute on the connecting rod is made of two opening opposing closures, connects by bolt between two opening opposing of chute.The segmentation spiro connection structure helps connecting rod and piston processing and assembling.
As preferably, connecting rod and piston crimping, be spirally connected or one is connected.Connecting rod of the present utility model and piston are fixed structures, and the form that can adopt crimping between connecting rod and the piston, is spirally connected is fixed, and also can adopt the form of integrative-structure.
As preferably, the body of compressor is for dividing a body structure, and described body comprises cylinder block and crankshaft base, and described cylinder block connects by bolt with crankshaft base.For duplex cylinder compressor, especially when connecting rod and piston employing integrative-structure, also can adopt the compressor block of branch body structure, this moment, the body of compressor comprised cylinder block and crankshaft base, cylinder block connects by bolt with crankshaft base, so also can solve the machining error problem of assembling and piston hole, reduce production costs.In addition, in the utility model, the structure that can adopt the both sides cylinder all to be spirally connected with crankshaft base also can adopt a side and crankshaft base one, the structure that opposite side and crankshaft base are spirally connected.
The beneficial effects of the utility model are: it is unbalanced that it has solved the compressor operating of prior art effectively, the problem that noise is big, and its wrist pin wearing and tearing of compressor that also solved prior art are big, influence the compressor problem in working life.Four cylinder compressor arrangement works of the present utility model are steady, noise is little and long service life, are suitable for various dissimilar compressors, have very high use value.
Description of drawings
Fig. 1 is a kind of structural representation of the utility model embodiment 1;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is a kind of structural representation of the split type cylinder body of the utility model;
Fig. 4 is the plan view of Fig. 3;
Fig. 5 is a kind of composite structure schematic representation of the utility model connecting rod and piston;
Fig. 6 is a kind of structural representation of the utility model embodiment 1 connecting rod;
Fig. 7 is the plan view of Fig. 6;
Fig. 8 is a kind of structural representation of the utility model embodiment 2 connecting rods;
Fig. 9 is a kind of structural representation of the utility model embodiment 3 connecting rods.
Among the figure: 1. body, 2. piston hole, 3. piston, 4. connecting rod, 5. chute, 6. bent axle, 7. crank throw, 8. oil duct, 9. oil groove, 10. oilhole, 11. fixed ends, 12. equilibrium blocks, 13. cylinder block, 14. crankshaft bases.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings the embodiment of technical solutions of the utility model is further described.
In the embodiment shown in Figure 21 as Fig. 1, a kind of four cylinder compressor structures, comprise body 1, bent axle 6 and be arranged on bent axle directly upwards and by four cylinders of this crank-driven, the central axis of four cylinders and the central axis of bent axle are at grade, 2 fens two pairs of both sides that are symmetricly set on bent axle of the piston hole of cylinder, fixedly connected with the piston 3 of a pair of cylinder by same connecting rod 4, the fixed end 11 and the piston crimping (see figure 5) of connecting rod, the centre of connecting rod is provided with chute 5, chute is a straight-line groove, chute is horizontally through center line on the length of connecting rod direction and the length direction of connecting rod is skewed setting (seeing Fig. 6 Fig. 7), the true dip direction of chute and crank throw sense of rotation consistent (see Fig. 2, arrow is the sense of rotation of crank throw on the bent axle among the figure) on the bent axle.The center line both sides of bent axle are provided with two crank throws 7 that dislocation is arranged, chute is suitable at the connecting rod length and the rotating diameter of crank throw transversely, the width of chute and the diameter of crank throw are suitable, two crank throws are slidingly connected at respectively in the chute of two connecting rods, also be provided with equilibrium block 12 on the bent axle, the phase difference between two cylinder piston motions of bent axle the same side is 180 degree.Connecting rod is structure as a whole, and the length direction of connecting rod is provided with oil duct 8, and an end of oil duct is positioned on the sidewall of chute, and described piston is provided with annular oil groove 9, and the other end of oil duct links to each other with annular oil groove by being arranged on piston upper oil hole 10.
In addition to the implementation; in claims of the present utility model and the disclosed scope of specification; technical characteristics of the present utility model or technical data can be reselected and make up; thereby constitute new embodiment; these all are that those skilled in the art need not to carry out creative work and can realize, so these the utility model embodiment of not having to describe in detail also should be considered as specific embodiment of the utility model and within protection domain of the present utility model.
The utility model is fixed the relative position of connecting rod and piston, chute is set on connecting rod changes the rotation angle of bent axle in the prior art and the fixed relationship of piston displacement, direction or trench structure by chute cooperate the movement law that changes existing piston with bent axle, to slow down the not steady working state of compressor, reach the purpose that reduces to vibrate, reduce compressor noise.
Claims (8)
1. cylinder compressor structure, comprise bent axle and be arranged on bent axle directly upwards and by four cylinders of this crank-driven, it is characterized in that: the central axis of the central axis of four cylinders and bent axle (6) at grade, the piston hole of cylinder (2) divides two pairs of both sides that are symmetricly set on bent axle, piston (3) with a pair of cylinder is fixedly connected by same connecting rod (4), the centre of connecting rod is provided with chute (5), chute is horizontally through the center line on the length of connecting rod direction, the center line both sides of bent axle are provided with two crank throws (7) that dislocation is arranged, chute is suitable at the connecting rod length and the rotating diameter of crank throw transversely, the width of chute and the diameter of crank throw are suitable, two crank throws are slidingly connected at respectively in the chute of two connecting rods, and the phase difference between two cylinder piston motions of bent axle the same side is 180 degree.
2. four cylinder compressor structures according to claim 1, it is characterized in that: the chute on the connecting rod is a straight-line groove, the length direction of described chute and connecting rod is skewed setting, and the true dip direction of chute is consistent with crank throw sense of rotation on the bent axle, and described chute is a centrosymmetric structure.
3. four cylinder compressor structures according to claim 1, it is characterized in that: the chute on the connecting rod is S-shaped, the line at described chute head and the tail two ends and the length direction of connecting rod are skewed setting, the true dip direction of chute is consistent with crank throw sense of rotation on the bent axle, and described chute is a centrosymmetric structure.
4. four cylinder compressor structures according to claim 1, it is characterized in that: the length direction of connecting rod is provided with oil duct (8), one end of oil duct is positioned on the sidewall of chute, described piston is provided with annular oil groove (9), and the other end of oil duct links to each other with annular oil groove by being arranged on piston upper oil hole (10).
5. four cylinder compressor structures according to claim 1, it is characterized in that: described connecting rod is structure as a whole.
6. four cylinder compressor structures according to claim 1 is characterized in that: described connecting rod is the segmentation spiro connection structure, and the chute at connecting rod middle part is made of two opening opposing closures, connects by bolt between two opening opposing of chute.
7. according to claim 1 or 2 or 3 or 4 or 5 or 6 described four cylinder compressor structures, it is characterized in that: connecting rod and piston crimping, be spirally connected or one is connected.
8. according to claim 1 or 2 or 3 or 4 or 5 or 6 described four cylinder compressor structures, it is characterized in that: the body of compressor (1) is for dividing body structure, described body comprises cylinder block (13) and crankshaft base (14), and described cylinder block connects by bolt with crankshaft base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220559452 CN203081683U (en) | 2012-10-29 | 2012-10-29 | Four-cylinder compressor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220559452 CN203081683U (en) | 2012-10-29 | 2012-10-29 | Four-cylinder compressor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203081683U true CN203081683U (en) | 2013-07-24 |
Family
ID=48827525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220559452 Expired - Lifetime CN203081683U (en) | 2012-10-29 | 2012-10-29 | Four-cylinder compressor structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203081683U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162894A (en) * | 2018-08-07 | 2019-01-08 | 中国石油大学(北京) | Sulfur resistive compressor |
-
2012
- 2012-10-29 CN CN 201220559452 patent/CN203081683U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109162894A (en) * | 2018-08-07 | 2019-01-08 | 中国石油大学(北京) | Sulfur resistive compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Hangzhou City, Zhejiang province 311000 industrial city of Yuhang Xianlin holy Road No. 1 Patentee after: HANGZHOU QIANJIANG COMPRESSOR GROUP Co.,Ltd. Address before: Hangzhou City, Zhejiang province 311122 industrial city of Yuhang Xianlin holy Road No. 1 Patentee before: HANGZHOU QIANJIANG COMPRESSOR Co.,Ltd. |
|
| CP03 | Change of name, title or address |
Address after: No. 1, Yuhang street, Yuhang street, Yuhang District, Hangzhou, Zhejiang Patentee after: HANGZHOU QIANJIANG REFRIGERATION COMPRESSOR GROUP Co.,Ltd. Address before: Hangzhou City, Zhejiang province 311000 industrial city of Yuhang Xianlin holy Road No. 1 Patentee before: HANGZHOU QIANJIANG COMPRESSOR GROUP Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130724 |
|
| CX01 | Expiry of patent term |