CN202673625U - Closed double-cylinder refrigerating compressor - Google Patents
Closed double-cylinder refrigerating compressor Download PDFInfo
- Publication number
- CN202673625U CN202673625U CN 201220292603 CN201220292603U CN202673625U CN 202673625 U CN202673625 U CN 202673625U CN 201220292603 CN201220292603 CN 201220292603 CN 201220292603 U CN201220292603 U CN 201220292603U CN 202673625 U CN202673625 U CN 202673625U
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- connecting rod
- chute
- cylinder
- bent axle
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Abstract
The utility model discloses a closed double-cylinder refrigerating compressor, which comprises a closed shell, a motor and a control device, wherein the motor is arranged in the closed shell and connected with a crankshaft; the crankshaft is arranged vertically; two cylinders driven by the crankshaft through a connecting rod are arranged in the radial direction of the crankshaft; the crankshaft is connected with pistons of the two cylinders through the connecting rod; a chute perpendicular to the length direction of the connecting rod is arranged in the center of the connecting rod; and a crank is connected to the chute in a sliding mode. The refrigerating compressor effectively solves the problems of low working efficiency, high vibration, serious noise pollution, high abrasion of piston pins and short service life of the refrigerating compressor in the prior art. The closed double-cylinder refrigerating compressor is stable in work, low in noise and long in service life, has high using value, and is worthy of popularization and application.
Description
Technical field
The utility model relates to a kind of enclosed refrigeration compressor, relates in particular to a kind of single closed double-cylinder refrigeration compressor that drives.
Background technique
At present, use in the household electric appliance of enclosed refrigeration compressor at refrigerator, refrigerator etc., extensively adopt the closed single cylinder refrigeration compressor that structure is relatively simple, cost is low.But also there are a lot of defectives in the single cylinder refrigeration compressor, and at first, in one week of driven by motor crankshaft rotating, refrigeration compressor only does work once, so the working efficiency of refrigeration compressor is lower; In addition, there are larger wearing and tearing in the connecting rod of prior art refrigeration compressor and the joint of piston for rotating or being slidingly connected, and have affected the working life of refrigeration compressor.Open day be that the patent document that May 27, publication number in 1992 are CN2105573U discloses a kind of reciprocating double-cylinder compression engine, has an eccentric cam on its live axle, this eccentric cam pivot one axle collar, the axle collar respectively is provided with a driveshaft in two ends, each driveshaft is connected with piston, piston moves reciprocatingly in the body cylinder, be the actions such as exhaust, air inlet, this structure is the twin-tub form, secondary can do work in one week of crankshaft rotating, therefore the compression efficiency of compressor is high, and relative volume reduces, Energy Intensity Reduction.But there is following point in this structure: 1. horizontal concrete chute need to be set in piston, the processing of this chute, assembling difficulty are all very large; 2. the length of chute is subject to the restriction of piston diameter, and chute length is directly related with piston stroke, and namely therefore the stroke of compressor piston needs significantly less than piston diameter,, limit the structural parameter of compressor crank shaft and piston, limited the using scope of compressor; 3. owing to all have chute in the piston at connecting rod two ends, the connecting rod two ends can be free to slide in chute, when cam turns to its maximum eccentric point position vertical with connecting rod, the unascertainable swing of direction may appear in connecting rod, cam occurs and rotate the drivening rod swing and the motionless situation of piston, thereby affect the stability of compressor operating, compressor noise increases simultaneously; 4. because all slide in the chute of piston in the two ends of connecting rod, therefore, the wearing and tearing between chute and the wrist pin are very large, because chute is at internal piston, the cost of production that therefore reduces this wearing and tearing is very high.
The model utility content
The purpose of this utility model is for the refrigeration compressor piston pin wearing and tearing of the single cylinder refrigeration compressor inefficiency that solves prior art and prior art are large, affect the problem in refrigeration compressor working life and provides that a kind of efficient is high, the closed double-cylinder refrigeration compressor of life-span length.
The utility model is to solve the problems of the technologies described above the technological scheme that adopts to be: a kind of closed double-cylinder refrigeration compressor, comprise closed shell, motor and control gear, described motor is arranged in the closed shell and with bent axle and connects, described bent axle vertically arranges, the footpath of bent axle upwards is provided with two cylinders that driven by connecting rod by this bent axle, two cylinders are symmetricly set on the relative both sides of bent axle, the central axis of two cylinders and the central axis of bent axle are on same vertical plane, bent axle is provided with a crank throw, bent axle links to each other with the piston of two cylinders by the connecting rod of an in-line, the central authorities of connecting rod are provided with the chute with the length of connecting rod perpendicular direction, the rotating diameter of crank throw is suitable on the length of chute and the bent axle, the width of chute and the diameter of crank throw are suitable, and crank throw is connected in the described chute slidably.Two cylinders are set around same bent axle, then bent axle rotates and can drive each acting of two cylinders a week once, the single cylinder crankshaft of cooler compressor that the has solved prior art refrigeration compressor that rotates a circle only does work once the ineffective problem of refrigeration compressor.In addition, the two ends of the utility model connecting rod adopt the wrist pin of prior art to be connected with piston, the structure that connecting rod is connected with piston by wrist pin can make piston of the present utility model adopt conventional General Construction, need not to offer chute on the piston, the structural parameter of offering difficulty and compressor that solved chute are restricted, affect the problem of refrigeration compressor using scope, simultaneously also solved prior art and arranged in piston that the compressor operating that chute causes is unstable, the refrigeration compressor noise reaches greatly the large problem of wearing and tearing between chute and the wrist pin.And the central authorities of the utility model connecting rod are provided with the chute vertical with connecting rod, the rotating diameter of crank throw is suitable on the length of chute and the bent axle, the width of chute and the diameter of crank throw are suitable, crank throw is slidingly connected in the chute, because connecting rod is structure as a whole and two ends are restricted by piston, therefore connecting rod can't swing, when bent axle rotates, crank throw on the bent axle rotates in chute and slidably reciprocates, thereby drivening rod is done linear reciprocating motion, the piston at connecting rod two ends is followed connecting rod and do linear reciprocating motion in the cylinder body of cylinder, the utility model is combined the to-and-fro motion that the rotation of bent axle is converted into connecting rod two ends piston by crank throw with chute, thereby realizes the function of refrigeration compressor.Because structure of the present utility model only has the chute in connecting rod middle part, the glide direction of crank throw in chute determines that therefore piston movement of the present utility model links up, and can guarantee like this stable of refrigeration compressor working state.In addition, only there is relative movement in connecting rod of the present utility model with bent axle, there are not rotation relation in wrist pin on the connecting rod and piston, therefore, the wear problem of insoluble wrist pin and piston joint does not exist in the utility model in the prior art, so greatly prolong the working life of wrist pin.
As preferably, the phase difference between two cylinder pistons motions is 180 degree, and two cylinders are parallel-connection structure, respectively are provided with a steam outlet pipe on the cylinder.This is the parallel-connection structure of two cylinders, exports in the constant situation total, can reduce the capacity of single cylinder, thereby reduces impact shock.
As another kind of scheme, the phase difference between two cylinder pistons move is 180 degree, and two cylinders are cascaded structure, and one of them cylinder is provided with a steam outlet pipe, and the air outlet of another cylinder links to each other with the suction port that is provided with the steam outlet pipe cylinder.This is the cascaded structure of two cylinders, can significantly improve like this delivery pressure of cylinder, need to be applicable to the compressor of elevated pressures occasion.
As preferably, connecting rod is the centrosymmetric structure of homogeneity one, and the length direction in the connecting rod is provided with oil duct, and an end of oil duct is positioned at the piston pin hole of interlinking lever end, the other end of oil duct is positioned on the sidewall of chute, and the thickness at connecting rod central authorities chute place is greater than the thickness at two ends piston pin hole place.Machining of Connecting Rod convenience and the precision of homogeneity integrative-structure guarantee easily, are suitable for the bent axle that crank throw is positioned at the end; The thickness at connecting rod central authorities chute place refers to connecting rod thickness in vertical direction greater than strong, the described here thickness of structure of the favourable increase connecting rod of thickness at two ends piston pin hole place, i.e. the thickness of piston pin hole on axially.In addition, because relative fixing when work between wrist pin and the piston on the utility model connecting rod, so the oil duct effect less in the connecting rod, more be maintenance for convenience detach by oil duct to the lubricated of wrist pin.
As alternative dispensing means, connecting rod is the segmentation spiro connection structure, and the length direction in the connecting rod is provided with oil duct, and an end of oil duct is positioned at the piston pin hole of interlinking lever end, the other end of oil duct is positioned on the sidewall of chute, and the thickness at connecting rod central authorities chute place is greater than the thickness at two ends piston pin hole place.Be positioned at middle bent axle for crank throw, then can adopt the connecting rod of segmental structure, at this moment, connecting rod is spirally connected by two sections connecting rod shanies and consists of, and the chute at connecting rod middle part then by two closed formation of relative opening, can be set in connecting rod on the crank throw so easily.
The beneficial effects of the utility model are: it has solved the closed single cylinder refrigeration compressor inefficiency of prior art, the problem that the wrist pin wearing and tearing are large and working life is short effectively, refrigerant compression engine efficiency of the present utility model is high, wrist pin weares and teares less and long service life, has very high use value.
Description of drawings
Fig. 1 is a kind of overall structure schematic representation of the closed double-cylinder refrigeration compressor of the utility model;
Fig. 2 is a kind of partial structurtes schematic representation of the closed double-cylinder refrigeration compressor of the utility model;
Fig. 3 is the plan structure schematic representation of Fig. 2;
Fig. 4 is a kind of structural representation of the closed double-cylinder refrigeration compressor connecting rod of the utility model;
Fig. 5 is the plan structure schematic representation of Fig. 4;
Fig. 6 is the another kind of structural representation of the closed double-cylinder refrigeration compressor connecting rod of the utility model.
Among the figure: 1. cylinder, 2. bent axle, 3. connecting rod, 4. piston, 5. chute, 6. crank throw, 7. oil duct, 8. piston pin hole, 10. wrist pin, 11. motors, 12. upper shells, 13. lower shell bodys, 14. cylinder head, 15. fuel sucking pipes, 16. exhaust valve plates, 17. valve plates, 18. suction valve chip, 19. top covers, 20. bodies, 21. control gear, 22. muffler assemblies, 23. refrigerator oils.
Embodiment
Below by embodiment, and by reference to the accompanying drawings the embodiment of technical solutions of the utility model is further described.
Such as Fig. 1, Fig. 2, among the embodiment 1 shown in Figure 3, a kind of closed double-cylinder refrigeration compressor, comprise closed shell, closed shell is made of upper shell 12 and lower shell body 13 welding, control gear 21 is arranged on outside the housing, motor 11 is arranged in the housing and with bent axle 2 and connects, described bent axle vertically arranges, the bottom hollow of bent axle consists of the fuel sucking pipe 15 that stretches into refrigerator oil 23, the upper end of bent axle connects top cover 19, bent axle is provided with a crank throw 6, the footpath of bent axle upwards is provided with the cylinder 1 that is driven by connecting rod by this bent axle, and described cylinder is two, and the cylinder body of two cylinders is symmetricly set on the body 20 of both sides of bent axle, cylinder is provided with cylinder head 14, suction valve chip 18, valve plate 17 and exhaust valve plate 16, the below of cylinder also is provided with muffler assembly 22.The central axis of 2 cylinders and the central axis of bent axle are on same vertical plane, bent axle is seen Fig. 4 Fig. 5 by the connecting rod 3(of an in-line) link to each other with the piston 4 of same two cylinders, described connecting rod is the centrosymmetric structure of homogeneity one, length direction in the connecting rod is provided with oil duct 7, one end of oil duct is positioned at the piston pin hole 8 of interlinking lever end, the other end of oil duct is positioned on the sidewall of chute, the central authorities of connecting rod are provided with the horizontal concrete chute 5 with the length of connecting rod perpendicular direction, the rotating diameter of crank throw 6 is suitable on the length of chute and the bent axle, the width of chute and the diameter of crank throw are suitable, crank throw is connected in the described chute slidably, the thickness at connecting rod central authorities chute place is greater than the thickness at two ends piston pin hole place, phase difference between two cylinder pistons move is 180 degree, two cylinders are parallel-connection structure, respectively are provided with a steam outlet pipe on two cylinders.
Phase difference between two cylinder piston motions of embodiment 2 is 180 degree, two cylinders are cascaded structure, one of them cylinder is provided with a steam outlet pipe, the air outlet of another cylinder links to each other with the suction port that is provided with the steam outlet pipe cylinder, connecting rod is segmentation spiro connection structure (see figure 6), length direction in the connecting rod is provided with oil duct, one end of oil duct is positioned at the piston pin hole of interlinking lever end, the other end of oil duct is positioned on the sidewall of chute, the thickness at connecting rod central authorities chute place is greater than the thickness at two ends piston pin hole place, and all the other are identical with embodiment 1.
During closed double-cylinder refrigeration compressor work, bent axle rotates by the connecting rod drive and is arranged on radially upper piston to-and-fro motion in the cylinder body of cylinder of bent axle, because two cylinders of the present utility model are symmetricly set on the both sides of bent axle, the central axis of two cylinders and the central axis of bent axle are on same vertical plane, therefore bent axle rotates and can drive each acting of two cylinders a week once, has improved the working efficiency of compressor.The glide direction of the utility model crank throw in chute determine, so piston movement links up, and can guarantee like this stable of compressor operating state.In addition, only there is relative movement in connecting rod of the present utility model with bent axle, there is not rotation relation in wrist pin 10 on the connecting rod with piston, therefore, the wear problem of insoluble wrist pin and piston joint does not exist in the utility model in the prior art, so greatly prolong the working life of wrist pin.
Claims (5)
1. closed double-cylinder refrigeration compressor, comprise closed shell, motor and control gear, described motor is arranged in the closed shell and with bent axle and connects, it is characterized in that: described bent axle vertically arranges, the footpath of bent axle upwards is provided with two cylinders (1) that driven by connecting rod by this bent axle, two cylinders are symmetricly set on the relative both sides of bent axle (2), the central axis of two cylinders and the central axis of bent axle are on same vertical plane, bent axle is provided with a crank throw, bent axle links to each other with the piston (4) of two cylinders by the connecting rod (3) of an in-line, the central authorities of connecting rod are provided with the chute (5) with the length of connecting rod perpendicular direction, the rotating diameter of crank throw on the length of chute and the bent axle (6) is suitable, the width of chute and the diameter of crank throw are suitable, and crank throw is connected in the described chute slidably.
2. described closed double-cylinder refrigeration compressor according to claim 1 is characterized in that: the phase difference between two cylinder pistons motions is 180 degree, and two cylinders are parallel-connection structure, respectively are provided with a steam outlet pipe on two cylinders.
3. described closed double-cylinder refrigeration compressor according to claim 1, it is characterized in that: the phase difference between two cylinder pistons move is 180 degree, two cylinders are cascaded structure, one of them cylinder is provided with a steam outlet pipe, and the air outlet of another cylinder links to each other with the suction port that is provided with the steam outlet pipe cylinder.
4. according to claim 1 and 2 or 3 described closed double-cylinder refrigeration compressors, it is characterized in that: connecting rod is the centrosymmetric structure of homogeneity one, length direction in the connecting rod is provided with oil duct (7), one end of oil duct is positioned at the piston pin hole (8) of interlinking lever end, the other end of oil duct is positioned on the sidewall of chute, and the thickness at connecting rod central authorities chute place is greater than the thickness at two ends piston pin hole place.
5. according to claim 1 and 2 or 3 described closed double-cylinder refrigeration compressors, it is characterized in that: connecting rod is the segmentation spiro connection structure, length direction in the connecting rod is provided with oil duct, one end of oil duct is positioned at the piston pin hole of interlinking lever end, the other end of oil duct is positioned on the sidewall of chute, and the thickness at connecting rod central authorities chute place is greater than the thickness at two ends piston pin hole place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220292603 CN202673625U (en) | 2012-06-20 | 2012-06-20 | Closed double-cylinder refrigerating compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220292603 CN202673625U (en) | 2012-06-20 | 2012-06-20 | Closed double-cylinder refrigerating compressor |
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| Publication Number | Publication Date |
|---|---|
| CN202673625U true CN202673625U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220292603 Expired - Fee Related CN202673625U (en) | 2012-06-20 | 2012-06-20 | Closed double-cylinder refrigerating compressor |
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| Country | Link |
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| CN (1) | CN202673625U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266349A (en) * | 2018-04-04 | 2018-07-10 | 台州市星亚科技股份有限公司 | A kind of air compressor machine compression mechanism |
| CN108302003A (en) * | 2018-04-08 | 2018-07-20 | 黄石东贝电器股份有限公司 | A kind of synchronous double-cylinder refrigeration compressor |
| CN108412725A (en) * | 2018-04-08 | 2018-08-17 | 黄石东贝电器股份有限公司 | A kind of asynchronous double-cylinder refrigeration compressor |
| CN108443106A (en) * | 2017-11-27 | 2018-08-24 | 南京塑维网络科技有限公司 | A kind of back and forth parallel rod-type transmission device and electric air pump |
| CN111594422A (en) * | 2020-05-11 | 2020-08-28 | 姚宇翔 | Double-cylinder air compressor |
-
2012
- 2012-06-20 CN CN 201220292603 patent/CN202673625U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443106A (en) * | 2017-11-27 | 2018-08-24 | 南京塑维网络科技有限公司 | A kind of back and forth parallel rod-type transmission device and electric air pump |
| CN108266349A (en) * | 2018-04-04 | 2018-07-10 | 台州市星亚科技股份有限公司 | A kind of air compressor machine compression mechanism |
| CN108302003A (en) * | 2018-04-08 | 2018-07-20 | 黄石东贝电器股份有限公司 | A kind of synchronous double-cylinder refrigeration compressor |
| CN108412725A (en) * | 2018-04-08 | 2018-08-17 | 黄石东贝电器股份有限公司 | A kind of asynchronous double-cylinder refrigeration compressor |
| CN108302003B (en) * | 2018-04-08 | 2024-02-06 | 黄石东贝压缩机有限公司 | Synchronous double-cylinder refrigeration compressor |
| CN111594422A (en) * | 2020-05-11 | 2020-08-28 | 姚宇翔 | Double-cylinder air compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20160620 |
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| CF01 | Termination of patent right due to non-payment of annual fee |