CN201218196Y - Enclosed reciprocating air compressor - Google Patents
Enclosed reciprocating air compressor Download PDFInfo
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- CN201218196Y CN201218196Y CNU2008200584370U CN200820058437U CN201218196Y CN 201218196 Y CN201218196 Y CN 201218196Y CN U2008200584370 U CNU2008200584370 U CN U2008200584370U CN 200820058437 U CN200820058437 U CN 200820058437U CN 201218196 Y CN201218196 Y CN 201218196Y
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Abstract
The utility model discloses a closed-type reciprocating compressor which comprises an electromotor arranged in a closed vessel, a cylinder, a piston that freely slides along the inner wall of the cylinder, a crankshaft which transmits the rotation force of the electromotor and is provided with an eccentrical part at the upper part of, and a connecting rod body device, wherein the connecting rod body device coverts the rotation of the crankshaft into the reciprocated linear motion corresponding to the cylinder through the pivotal connection together with the eccentrical part of the crankshaft and the piston. In the closed-type reciprocating compressor, one end of the connecting rod body which is connected with the crankshaft is provided with a spherical bearing, a preset telescopic seam is formed between connecting parts, thereby a large-diameter part of the connecting rod body and the spherical bearing can relativelt rotate, and the verticality between the connecting rod body and the crankshaft can be automatically adjusted through the rotation; the conditions that an axial line of the crankshaft and an axial line of the piston are not vertical can be effectively solved; the friction and the abrasion of various mechanical connection relations which take the connecting rod body as a basis can be reduced; and the normal operation of the compressor can be retained.
Description
Technical field
The utility model relates to a kind of closed reciprocating compressor.
Background technique
The compressor of common sealing comprises a motor unit, a frame, a bent axle, a con-rod only, a cylinder and a piston.Wherein, motor unit has a stator and rotor, and rotor is rotatably installed near the stator.The bottom of bent axle is fixed on the central authorities of rotor, and top has eccentric part, and it rotates with rotor.Con-rod only is connected between the eccentric part on piston and bent axle top, the eccentric part on bent axle top is plugged in the cylindrical hole of offering on the large-diameter portion of con-rod only one end and connects rotationally, piston is connected by the minor diameter of wrist pin with the con-rod only the other end, and piston is done to move toward complex line in cylinder.
In said structure, bent axle rotates with rotor, thereby eccentric part is rotated.Con-rod only converts the eccentric rotary of eccentric part to linear moving, thereby realizes moving back and forth of piston.Simultaneously, in having the airtight compressor of said structure, the axis of bent axle and the angle of con-rod only should remain the right angle.In addition, piston should leave ground, suitable slit and slide in cylinder, but must keep piston parallel and symmetrical corresponding to the axis of cylinder.In addition, the angle of piston and wrist pin also should be the right angle.The parallel and symmetrical of con-rod only large-diameter portion and minor diameter is important factors concerning con-rod only.
As mentioned above, con-rod only is with respect to the setting of crankshaft center line, and promptly the various mechanical connection relations based on con-rod only are key factors to Driven Compressor.So, when con-rod only with respect to crankshaft center line instability is set the time, will cause friction and wear to each parts of compressor.The result will cause the compressor can't driven.Especially when the misalignment of crankshaft and piston machinery, the problems referred to above are particularly serious.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, a kind of connecting rod means that is used for closed reciprocating compressor is provided, it can effectively solve crankshaft center line and piston axis off plumb situation, reduction is based on the friction and wear of the various mechanical connection relations of con-rod only, the normal operation that keeps compressor.
The technological scheme that realizes above-mentioned purpose is: a kind of closed reciprocating compressor, comprise that a motor, a compression mechanical part and the conduct electricity motivation rotating force and the top that are installed in the seal container are the bent axle of eccentric part, this compression mechanical part comprises a cylinder, the piston and a connecting rod means that can move along cylinder inner wall, wherein, described connecting rod means comprises a con-rod only and a spherical bearing; Described con-rod only is a straight body of rod, it one comprises the shaft that large diameter circular arc head that the minor diameter circular arc head, that is connected with piston is connected with bent axle and two ends connect minor diameter circular arc head and large diameter circular arc head respectively, offer the axis sphere through hole vertical on the end face of described large diameter circular arc head, the axis coaxle of the axis of this sphere through hole and orthodrome head with connecting rod shank; The cylinder endoporus of described spherical bearing is set in the eccentric part of bent axle rotationally and is installed in rotation in the sphere through hole of con-rod only; Described piston converts rotatablely moving of bent axle to respect to cylinder linear reciprocating motion by connecting rod means.
Above-mentioned closed reciprocating compressor, wherein, described connecting rod means also comprises a wrist pin and a spring pin; Offer columniform piston pin hole on the upper and lower end face of described minor diameter circular arc head; Offer on the end face of the relative con-rod only of described piston one with the jack and a spring pin hole of the minor diameter circular arc head of con-rod only coupling, and offer coaxial and vertically pass through the piston pin hole of described jack on the upper and lower end face of piston with the piston pin hole of con-rod only; Offer radially a spring pin hole on the exterior edge face of described wrist pin, described wrist pin inserts the piston pin hole of piston and con-rod only behind the jack of con-rod only insertion piston, insert the spring pin hole of piston and wrist pin again with spring pin, so that piston and con-rod only flexibly connect.
Above-mentioned closed reciprocating compressor, wherein, the axis of described spherical bearing and the parallel axes of wrist pin and perpendicular to the shaft of con-rod only; Described spherical bearing cooperates with the sphere via clearance of con-rod only large diameter circular arc head.
Above-mentioned closed reciprocating compressor, wherein, the large diameter circular arc head of described con-rod only disconnects with shaft at the diameter line place perpendicular to shaft and is connected with shaft by bolt behind the parcel spherical bearing.
Any one above-mentioned closed reciprocating compressor, wherein, described con-rod only is offered the oil guiding hole that passes shaft and be communicated with the sphere through hole of large diameter circular arc head at the height center and from the outer end of minor diameter circular arc head, and this oil guiding hole is communicated with the end face oilhole of spherical bearing and is coaxial.
Owing to adopted the technological scheme of closed reciprocating compressor of the present utility model, promptly the end at the con-rod only that connects bent axle is provided with spherical bearing, between joint, form a predetermined scalable seam, thereby con-rod only large-diameter portion and spherical bearing can be relatively rotated, by this rotation, automatically regulate the perpendicularity between con-rod only and the bent axle, it can effectively solve crankshaft center line and piston axis off plumb situation, reduction is based on the friction and wear of the various mechanical connection relations of con-rod only, the normal operation that keeps compressor.Offer an oil guiding hole at the joint of con-rod only and piston and spherical bearing again, assurance becomes abundant based on the supply of the lubricant oil of the various mechanical connections relations of con-rod only, and hermetic type compressor is moved smoothly, improves its reliability.
Description of drawings
Fig. 1 is the structural representation of closed reciprocating compressor of the present utility model;
Fig. 2 is the stereochemical structure unfolded drawing of the connecting rod means in the closed reciprocating compressor of the present utility model;
Fig. 3 is the erection drawing of the connecting rod means in the closed reciprocating compressor of the present utility model;
Fig. 4 is the A-A sectional view among Fig. 3.
Embodiment
In order to understand the technical solution of the utility model better, also be described in detail in conjunction with the accompanying drawings below by specific embodiment:
See also Fig. 1 to Fig. 4, a kind of closed reciprocating compressor of the present utility model, comprise a seal container 1, motor 2, a compressing mechanism 3, a frame 4, a bent axle 5 and a connecting rod means, wherein, a motor 2 and a compressing mechanism 3 are arranged on seal container 1 inside, and motor 2 comprises stator and rotor; Compression mechanical part 3 comprises cylinder 7 and piston 8, and piston 8 can be free to slide along cylinder inner wall; Frame 4 supports motor 2 and compression mechanical part 3 in seal container 1; The rotating force of bent axle 5 conduct electricity motivations 2, its bottom is fixed on the central authorities of motor 2 rotors, and top has eccentric part 6, and it rotates with rotor and the eccentric part 6 on its top is supported on the frame 4; Connecting rod means is pivotally connected and flexibly connect with piston 8 with the eccentric part 6 of bent axle 5 respectively; Piston 8 changes rotatablely moving of bent axle 5 into respect to cylinder 7 linear reciprocating motion by connecting rod means.
Connecting rod means comprises: a con-rod only 9, a spherical bearing 9c, a wrist pin 10 and a spring pin 11, wherein, con-rod only 9 has the minor diameter circular arc head 9a that connects piston 8, the large diameter circular arc head 9b that connects bent axle 5 and the shaft 9d that two ends connect minor diameter circular arc head 9a and large diameter circular arc head 9b respectively; Offer piston pin hole on the upper and lower end face of minor diameter circular arc head 9a; Offer on the upper and lower end face of large diameter circular arc head 9b one be used to set spherical bearing 9c and with the sphere through hole 9b ' of the axis coaxle of circular arc head, be Spielpassung between this sphere through hole and the spherical bearing 9c.
The cylinder endoporus of spherical bearing 9c is set in the eccentric part 6 of bent axle 5 rotationally and is installed in rotation in the sphere through hole of con-rod only 9.
Offer on the end face of piston 8 relative con-rod onlys 9 one with the jack 8a and a spring pin hole 8b of con-rod only 9 minor diameter circular arc head 9a coupling, and offer one coaxial and vertically pass through the piston pin hole 8c of this jack 8a on the upper and lower end face of piston 8 with the piston pin hole 9a ' of con-rod only 9.
Offer radially a spring pin hole 10a on the exterior edge face of wrist pin 10, it inserts the piston pin hole 9a ' of piston 8 and con-rod only 9 behind the jack 8a of the minor diameter circular arc head 9a of con-rod only 9 insertion piston 8, insert spring pin hole 8b, the 10a of piston 8 and wrist pin 10 again with spring pin 11, so that piston 8 flexibly connects with con-rod only 9.The parallel axes of the axis of spherical bearing 9c and wrist pin 10 and perpendicular to the shaft 9d of con-rod only 9.
The large diameter circular arc head 9b of con-rod only 9 disconnects at diameter line place and the shaft 9d perpendicular to shaft 9d, be connected with shaft 9d by bolt 12 after being included in spherical bearing 9c in the inner sphere through hole, this sphere through hole 9b ' can be connected with spherical bearing 9e rotationally.Can compensate because the axis of the eccentric part 6 of the bent axle 5 that build-up tolerance and manufacturing tolerances cause and the out of plumb of cylinder 7 axis guarantee that hermetic type compressor turns round normally by this device.
Also offer an oil guiding hole 9e on the con-rod only 9, this oil guiding hole 9e passes shaft 9d at the height center of con-rod only 9 and from the outer end of minor diameter circular arc head 9a always and is communicated to the sphere through hole 9b ' of large diameter circular arc head 9b, and this oil guiding hole 9e is communicated with the end face oilhole of spherical bearing 9e and is coaxial.By oil guiding hole 9e is set, the lubricant oil that hermetic type compressor pumps into by bent axle 5 oil ducts is behind the eccentric part 6 that enters bent axle 5, oilhole by spherical bearing 9c flows to oil guiding hole 9e again, so that lubricant oil is lubricated the joint between con-rod only 9 and the piston 8, assurance becomes abundant based on the supply of the lubricant oil of the various mechanical connection relations of con-rod only 9, hermetic type compressor is moved smoothly, improve its reliability.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model the above embodiment's variation, modification.
Claims (5)
1. closed reciprocating compressor, comprise that a motor, a compression mechanical part and the conduct electricity motivation rotating force and the top that are installed in the seal container are the bent axle of eccentric part, this compression mechanical part comprises a cylinder, the piston and a connecting rod means that can move along cylinder inner wall, it is characterized in that
Described connecting rod means comprises a con-rod only and a spherical bearing;
Described con-rod only is a straight body of rod, it one comprises the shaft that large diameter circular arc head that the minor diameter circular arc head, that is connected with piston is connected with bent axle and two ends connect minor diameter circular arc head and large diameter circular arc head respectively, offer the axis sphere through hole vertical on the end face of described large diameter circular arc head, the axis coaxle of the axis of this sphere through hole and orthodrome head with connecting rod shank;
The cylinder endoporus of described spherical bearing is set in the eccentric part of bent axle rotationally and is installed in rotation in the sphere through hole of con-rod only;
Described piston converts rotatablely moving of bent axle to respect to cylinder linear reciprocating motion by connecting rod means.
2. closed reciprocating compressor according to claim 1 is characterized in that,
Described connecting rod means also comprises a wrist pin and a spring pin;
Offer columniform piston pin hole on the upper and lower end face of described minor diameter circular arc head;
Offer on the end face of the relative con-rod only of described piston one with the jack and a spring pin hole of the minor diameter circular arc head of con-rod only coupling, and offer coaxial and vertically pass through the piston pin hole of described jack on the upper and lower end face of piston with the piston pin hole of con-rod only;
Offer radially a spring pin hole on the exterior edge face of described wrist pin, described wrist pin inserts the piston pin hole of piston and con-rod only behind the jack of con-rod only insertion piston, insert the spring pin hole of piston and wrist pin again with spring pin, so that piston and con-rod only flexibly connect.
3. closed reciprocating compressor according to claim 1 is characterized in that,
The axis of described spherical bearing and the parallel axes of wrist pin and perpendicular to the shaft of con-rod only;
Described spherical bearing cooperates with the sphere via clearance of con-rod only large diameter circular arc head.
4. closed reciprocating compressor according to claim 1 is characterized in that, the large diameter circular arc head of described con-rod only disconnects with shaft at the diameter line place perpendicular to shaft and is connected with shaft by bolt behind the parcel spherical bearing.
5. according to described any one closed reciprocating compressor of claim 1 to 4, it is characterized in that, described con-rod only is offered the oil guiding hole that passes shaft and be communicated with the sphere through hole of large diameter circular arc head at the height center and from the outer end of minor diameter circular arc head, and this oil guiding hole is communicated with the end face oilhole of spherical bearing and is coaxial.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200584370U CN201218196Y (en) | 2008-05-15 | 2008-05-15 | Enclosed reciprocating air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200584370U CN201218196Y (en) | 2008-05-15 | 2008-05-15 | Enclosed reciprocating air compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201218196Y true CN201218196Y (en) | 2009-04-08 |
Family
ID=40541033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200584370U Expired - Fee Related CN201218196Y (en) | 2008-05-15 | 2008-05-15 | Enclosed reciprocating air compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201218196Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087244A (en) * | 2017-12-11 | 2018-05-29 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor lubrication structure and compressor |
| CN111594405A (en) * | 2019-02-21 | 2020-08-28 | 罗伯特·博世有限公司 | Eccentric driving device of eccentric pump |
-
2008
- 2008-05-15 CN CNU2008200584370U patent/CN201218196Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108087244A (en) * | 2017-12-11 | 2018-05-29 | 珠海格力节能环保制冷技术研究中心有限公司 | A kind of compressor lubrication structure and compressor |
| CN108087244B (en) * | 2017-12-11 | 2023-11-03 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor lubricating structure and compressor |
| CN111594405A (en) * | 2019-02-21 | 2020-08-28 | 罗伯特·博世有限公司 | Eccentric driving device of eccentric pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090408 Termination date: 20120515 |