CN1888438A - Working oil supply structure for gear compressor - Google Patents
Working oil supply structure for gear compressor Download PDFInfo
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- CN1888438A CN1888438A CN 200510014130 CN200510014130A CN1888438A CN 1888438 A CN1888438 A CN 1888438A CN 200510014130 CN200510014130 CN 200510014130 CN 200510014130 A CN200510014130 A CN 200510014130A CN 1888438 A CN1888438 A CN 1888438A
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- gear
- running shaft
- working oil
- cylinder
- inboard
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Abstract
The present invention discloses a working oil supply structure of gear compressor. It includes the following several portions: closed container, its undersurface has lubricating oil; cylinder; outside gear which can be rotatably inserted into the interior of said cylinder; inside gear which is inserted into the interior of outside gear, can be contacted with said outside gear, then can be formed into several compression spaces; upper bearing and lower bearing which are respectively combined on two side faces of said cylinder and can be used for closing said compression space; rotary shaft which is passed through and inserted into the upper and lower bearings and combined with inside gear; and oil storage tank which is set between the described rotary shaft and inside gear combined with said rotary shaft.
Description
Technical field
What the present invention relates to is gear compressor, particularly be the Working oil supply structure of gear compressor.
Background technique
Usually, compressor becomes kinetic energy with transformation of electrical energy, and by this kinetic energy compression refrigerant gas.Compressor is the key element that constitutes refrigerating circulation system, and according to the mechanism of compression refrigerant, it is multiple to be divided into rotary compressor, vortex type compressor, past dbl act compressor etc.These compressor application are on equipment such as refrigerator, air conditioner, show cabinet.
In the above-mentioned rotary compressor, the rotating force of drive motor makes the running shaft rotation after being delivered to running shaft, along with the rotation of running shaft, is arranged on this and selects the eccentric part of rotating shaft one side to rotate in the compression volume of cylinder block.When eccentric part rotated in the compression volume of cylinder block, the blade in being arranged on this cylinder block changed the volume of the compression volume of cylinder block, sucked cold media air thus after overcompression is discharged again.Such rotary compressor is along with 1 week of drive motor rotation is discharged a pressurized gas.
In above-mentioned vortex type compressor, after the rotating force of drive motor is delivered to running shaft, this running shaft rotation.Along with the rotation of running shaft, be combined in that rotation worm gear on this running shaft is meshed with fixing worm gear and suck cold media air the time for the helical movement, discharge again after compression.Such vortex type compressor is along with 1 week of drive motor rotation is discharged secondary compression gas continuously.
In the dbl act compressor, after the rotating force of drive motor was delivered to crankshaft, this crankshaft rotated above-mentioned.Along with crankshaft rotation, suck cold media air when the piston that is combined in this crankshaft is done straight reciprocating motion in the compression volume of cylinder block, discharge again after compression.Past dbl act compressor like this is along with 1 week of drive motor rotation is discharged a pressurized gas.
In addition, except the compressor that illustrates previously, also have compressing mechanism, comprising: first gear is formed with a plurality of gear teeth on the inner circumferential surface; Second gear is formed with the gear that number is less than the gear tooth number of above-mentioned first gear on its outer circumferential face, and rotates with first gear engagement.In such compressing mechanism, first gear and the rotation of second gear engagement were discharged for several times continuously and are compressed gas during 1 week.Because this gear compressor is compared with other compressor, compression efficiency is relative with stability outstanding, thereby is carrying out the correlative study exploitation at present.
Fig. 1, the 2nd, the positive view of the compression mechanical part of existing gear compressor and planimetric map.
As shown in the figure, above-mentioned compressor structure portion is installed in the seal container 1 that the bottom surface stores working oil.
Above-mentioned cylinder 10 is included in the gear patchhole 11 that the center of the inside of the main body portion 12 with predetermined thickness and area and this main body portion 12 forms prejudicially.
The compression mechanical part of above-mentioned existing gear compressor comprises: cylinder 10, and its inside is formed with gear patchhole 11; Outboard gears 20 is formed with a plurality of gear teeth 21 on the inner circumferential surface, and inserts the gear patchhole 11 of cylinder rotationally; Inboard gear 30 is formed with a plurality of gear teeth 31 on its outer circumferential face, insert outboard gears 20 rotationally and form a plurality of compression volume P with the gear tooth 21 of outboard gears 20; Running shaft 40 combines with inboard gear 30, is connected with the mechanism portion (not shown) that produces rotating force again simultaneously; Upper bearing 50 and lower bearing 60 are combined in the top and the bottom of cylinder 10 respectively and supporting rotating shaft 40 makes it possible to cover above-mentioned compression volume P.
Above-mentioned outboard gears 20 is included in a plurality of gear teeth 21 that form on the inner peripheral surface that has with said gear patchhole 11 corresponding areas and certain thickness gear main body portion 22.
Above-mentioned inboard gear 30 is included in a plurality of gear teeth 31 that form on the outer circumferential face of the gear main body portion 32 with certain thickness and toroidal and the axle joining hole 33 that connects formation in the centre of this gear main body portion 32 with certain internal diameter.
Above-mentioned running shaft 40 forms the rod shape with specific length.The internal diameter of the axle joining hole 33 of the external diameter of running shaft 40 and inboard gear forms accordingly.
Above-mentioned upper bearing 50 and lower bearing 60 be included in the middle of the main body portion 51,61 that has the regulation shape respectively, rotatably insert the shaft insertion hole 5262 of above-mentioned running shaft 40.
Above-mentioned running shaft 40 is combined on the axle joining hole 33 of inboard gear 30.Running shaft 40 be pressed into and secure bond inboard gear 30 the axle joining hole 33 on.Running shaft 40 and inboard gear 30 are gone into fixing by hot pressing.In addition, running shaft 40 and inboard gear 30 also can pass through welding and secure bond.
Above-mentioned upper bearing 50 and lower bearing 60 are connected the both sides of cylinder 10 by its shaft insertion hole 51,61 interpolation running shafts 40.At this moment, upper bearing 50 and lower bearing 60 touch the bi-side of inboard gear 30 and outboard gears 20 and airtight gear tooth 31 and a plurality of compression volume P of forming of the gear tooth 21 of outboard gears 20 by inboard gear 30.
Above-mentioned cylinder 10, upper bearing 50 and lower bearing 60 are connected by a plurality of screws (not shown) and are bonded to each other.
Carry out as described below to the action of above-mentioned compressor structure portion below.
At first, after the rotating force of mechanism portion was delivered to running shaft 40, these running shaft 40 rotations were pressed into the also rotation thereupon of inboard gear 30 on this choosing dress axle 40 thus.After inboard gear 30 rotations, rotating force is delivered on the outboard gears 20 that contacts with this inboard gear 30 multiple spots, also rotation together of this outboard gears 20 thus.The number of teeth by inboard gear 30 and the number of teeth of outboard gears 20 poor also forms a plurality of compression volume P when forming a plurality of point of contact between the gear tooth 21 of the gear tooth 31 of inboard gear 30 and outboard gears 20 thereupon.
Along with 30 rotations of above-mentioned inboard gear, when outboard gears 20 was rotated together, the position of the point of contact of inboard gear 30 and outboard gears 20 changed, meanwhile also each transformation into itself of the volume of compression volume P.Along with the volume of compression volume P changes, gas is discharged through overcompression by after being arranged on suction device (not shown) on cylinder 100 or the upper and lower part bearing 50,60 and being inhaled into compression volume P again.
When the number of teeth of above-mentioned outboard gears 20 is 7, when the number of teeth of inboard gear 30 is 6, forms 6 compression volumes 6, and above-mentioned inboard gear 30 every rotations 60 degree, just discharge compressed gas at a compression volume P.In addition, when inboard gear 30 rotations 60 were spent, each compression volume P became identical shape.
In addition, rotation along with running shaft 40, the rotating force of inboard gear 30 rotation and its inboard gear 30 is delivered to outboard gears 20 and process that this outboard gears 20 is also rotated, produce frictional force between upper and lower part bearing 50,60 that moves relative to each other and the inboard gear 30 and between inboard gear 30 and the outboard gears 20, the power consumption meeting is many thus.In addition, also can produce between the part and wear and tear and the shortening part life, also cause the leakage of pressurized gas.
Simultaneously also should between the parts that do relative motion, supply with a certain amount of working oil.
Summary of the invention
The objective of the invention is to overcome the deficiency of above-mentioned technology, a kind of Working oil supply structure of can be swimmingly supplying with the gear compressor of working oil between the parts of inboard gear that the rotating force by running shaft rotates and this inboard gear motion relatively is provided.
The technological scheme that solves the problems of the technologies described above is:
A kind of Working oil supply structure of gear compressor comprises: seal container, and the bottom surface has lubricant oil; Cylinder; Outboard gears, the inside of rotatably inserting cylinder; Inboard gear inserts the inside of outboard gears and contact formation a plurality of compression volumes in back with this outboard gears; Upper bearing and lower bearing are combined in the bi-side of cylinder, airtight compression volume respectively; Running shaft connect to insert on the bearing of top and the bottom, and combines with inboard gear, described running shaft and with inboard gear that this running shaft combines between be provided with the fuel reserve tank that fills lubricant oil.
One side of the lower bearing relative with described fuel reserve tank is formed with the work oilhole that is communicated with this fuel reserve tank.
The cutting part that is formed with 2 cutting parts on the outer circumferential face of described running shaft and forms, be formed with the through hole corresponding on the inboard gear with the external diameter of running shaft, and be formed with this through hole in the auxiliary section, plane that a side inner peripheral surface cooperates with the cutting part of running shaft, at the outer circumferential face of a side cutting part of running shaft and the fuel reserve tank that forms with the inner peripheral surface of the outer circumferential face opposed inside gear of this cutting part.
2 cutting parts of described running shaft are 180 degree at interval.
Described cylinder is immersed in the working oil that is stored in the seal container bottom surface.
The invention has the beneficial effects as follows: gear compressor Working oil supply structure of the present invention is in start-up course, working oil can supply to swimmingly inboard gear and and the upper bearing of this inboard gear relative movement, lower bearing, outboard gears between, thereby not only can reduce inboard gear and and the parts of this inboard gear relative movement between frictional force, can also reduce wear with minimizing, thereby have the loss that reduces the power of importing and prolongation component life with minimizing and improve the effect of reliability.Owing to reducing the leakage that component wear has suppressed pressurized gas, has the low effect of the compression efficiency of preventing thus with minimizing.
Description of drawings
Fig. 1, the 2nd, the positive view of the compression mechanical part of existing gear compressor and planimetric map;
Fig. 3, the 4th, the positive view and the planimetric map of the compression mechanical part of an embodiment's of gear compressor Working oil supply structure of the present invention gear compressor;
Fig. 5 is other embodiments' the planimetric map of the running shaft of gear compressor Working oil supply structure of the present invention.
The figure number explanation of the major component of drawing
1; Seal container 10; Cylinder
20; Outboard gears 30; Inboard gear
35; Through hole 36; The auxiliary section, plane
40; Running shaft 43; Cutting part
50; Upper bearing 60; Lower bearing
63; Work oilhole P; Compression volume
K; Fuel reserve tank
Embodiment
In order to reach above-mentioned purpose of the present invention, the invention provides a kind of Working oil supply structure of gear compressor, its structure comprises: seal container 1 bottom surface has lubricant oil; Cylinder 10; Outboard gears 20, the inside of rotatably inserting cylinder 10; Inboard gear 30 inserts the inside of outboard gears 20 and contact formation a plurality of compression volume P in back with this outboard gears 30; Upper bearing 50 and lower bearing 60 are combined in the bi-side of cylinder 10, airtight compression volume respectively; Running shaft 40 connect to insert on the upper and lower part bearing 50,60, and combines with inboard gear 30, described running shaft 40 and with inboard gear 30 that this running shaft combines between be provided with the fuel reserve tank K that fills lubricant oil.
One side of the lower bearing 60 relative with described fuel reserve tank K is formed with the work oilhole 63 that is communicated with this fuel reserve tank K.
The cutting part 43 that is formed with 2 cutting parts on the outer circumferential face of described running shaft 40 and forms, be formed with the through hole corresponding 35 on the inboard gear 30 with the external diameter of running shaft 40, and be formed with this through hole 35 in the auxiliary section, plane 36 that a side inner peripheral surface cooperates with the cutting part 43 of running shaft, at the outer circumferential face of a side cutting part 43 of running shaft 40 and the fuel reserve tank K that forms with the inner peripheral surface of the outer circumferential face opposed inside gear of this cutting part 43.
2 cutting parts 43 of described running shaft 40 are 180 degree at interval.
Described cylinder 10 is immersed in the working oil that is stored in seal container 1 bottom surface.
Below, describe the Working oil supply structure of gear compressor of the present invention with reference to the accompanying drawings in detail
Embodiment.
Fig. 3, the 4th, the positive view and the planimetric map of the compression mechanical part of an embodiment's of gear compressor Working oil supply structure of the present invention gear compressor.
As shown in the figure, the compression mechanical part of said gear formula compressor comprises: cylinder 10, and its inside is formed with gear patchhole 11; Outboard gears 20 is formed with a plurality of gear teeth 21 on the inner circumferential surface, and inserts the gear patchhole 11 of cylinder rotationally; Inboard gear 30 is formed with a plurality of gear teeth 31 on its outer circumferential face, insert outboard gears 20 rotationally and form a plurality of compression volume P with the gear tooth 21 of outboard gears 20; Running shaft 40, insertion is combined on the above-mentioned inboard gear 30; Upper bearing 50 and lower bearing 60 are combined in the top and the bottom of cylinder 10 respectively and support above-mentioned running shaft 40, make it possible to cover compression volume P.Running shaft 40 and with inboard gear 30 that this running shaft 40 combines between be provided with the fuel reserve tank K that stores working oil.
Above-mentioned compressor structure portion secure bond stores the inside of the seal container 1 of working oil in the bottom surface.The integral body or the cylinder 10 of above-mentioned compressor structure portion all are immersed in the above-mentioned working oil.
Above-mentioned cylinder 10 is included in the gear patchhole 11 that the center of the inside of the main body portion 12 with predetermined thickness and area and this main body portion 12 forms prejudicially.
Above-mentioned outboard gears 20 is included in a plurality of gear teeth 21 that form on the inner peripheral surface that has with said gear patchhole 11 corresponding areas and certain thickness gear main body portion 22.
Above-mentioned inboard gear 30 comprises: a plurality of gear teeth 31 that form on the outer circumferential face of the gear main body portion 32 with certain thickness and toroidal; In the middle of this gear main body portion 32, form the certain through hole 35 of internal diameter; Prolong the auxiliary section, plane 36 on formation and its inner side surface formation plane in inner peripheral surface one side of through hole 35.
Form on the above-mentioned running shaft 40 have axial region 41 specific length, rod shape and a side of this axial region 41 have diameter greater than this axial region 41 and have certain-length in conjunction with axial region 42, this external diameter in conjunction with axial region 42 is corresponding with the internal diameter of the through hole 35 of inboard gear.And the cutting part 43 that is formed with 2 cutting parts on the outer circumferential face in conjunction with axial region 42 and forms.Cutting part 43 forms the plane, and the area of the auxiliary section, plane 36 of the size on this plane and inboard gear is corresponding.Above-mentioned 2 cutting parts, 43 preferred each intervals 180 are spent and are formed.
Above-mentioned running shaft 40 combines with inboard gear 30 in conjunction with axial region 42 inserts the through hole 35 of inboard gear by it, and at this moment, an above-mentioned side cutting part 43 in conjunction with axial region 42 contacts with 36 of the auxiliary sections, plane of inboard gear.And the space that is formed by through hole 25 inner peripheral surfaces in conjunction with the opposite side cutting part 43 of axial region 42 and inboard gear on the other side forms fuel reserve tank K.
Another embodiment of above-mentioned running shaft 40, as shown in Figure 5, this running shaft 40 has certain-length and its external diameter forms certain ring clavate attitude.The external diameter of running shaft 40 is corresponding with the internal diameter of the through hole of inboard gear 35.And be formed with two cutting parts 43 on the side outer circumferential face of running shaft 40.In these two cutting parts 43 one of them is corresponding with the auxiliary section, plane 36 of inboard gear.
Above-mentioned running shaft 40 combines with inboard gear 30 by the through hole 35 that inserts inboard gear, and at this moment, a side cutting part 43 of running shaft contacts with 36 of the auxiliary sections, plane of inboard gear.The space that is formed by through hole 35 inner peripheral surfaces of the opposite side cutting part 43 of running shaft 42 and inboard gear on the other side forms fuel reserve tank K.
Above-mentioned upper bearing 50 and lower bearing 60 are included in the shaft insertion hole that rotatably inserts running shaft 40 52,62 in the middle of the main body portion 51,61 that has the regulation shape respectively.
Above-mentioned upper bearing 50 and lower bearing 60 are connected the both sides of cylinder 10 by its shaft insertion hole 52,62 interpolation running shafts 40.Upper bearing 50 and lower bearing 60 touch the bi-side of inboard gear 30 and outboard gears 20 and airtight gear tooth 31 and a plurality of compression volume P of forming of the gear tooth 21 of outboard gears 20 by inboard gear 30.The inner peripheral surface of the inner peripheral surface of the shaft insertion hole 52 by upper bearing 50 and the shaft insertion hole 62 of lower bearing 60 supports above-mentioned running shaft 40.
One side of the lower bearing 60 relative with fuel reserve tank K place part can also form the work oilhole 63 that is connected with fuel reserve tank K.
Above-mentioned running shaft 40 secure bond are on the mechanism portion that produces rotating force.Cylinder 10, upper bearing 50 and lower bearing 60 are connected by a plurality of screws (not shown) and are bonded to each other.
Below, the action effect of gear compressor Working oil supply structure of the present invention is described.
The startup of the compression mechanical part of said gear formula compressor is identical with aforementioned existing situation, thereby omission specifies.
In the process that compression mechanical part starts, when the working oil that is stored in seal container 1 bottom surface in the compression mechanical part is dipped into cylinder 10, part working oil flows into the fuel reserve tank K that is formed by inboard gear 30 and running shaft 40, and the rotation by this inboard gear 30 supplies between the top and upper bearing 50 of this inboard gear 30 and between the bottom surface and lower bearing 60 of inboard gear 30.Supply to the working oil between inboard gear 30 and the upper and lower part bearing 50,60, between this inboard gear 30 and upper and lower part bearing 50,60, play the lubricant oil effect, thereby not only reduce the frictional force between inboard gear 30 and the upper and lower part bearing 50,60, can also suppress wearing and tearing.Moreover, a part of working oil among the fuel reserve tank K supplies between inboard gear 30 and the outboard gears 20, thus between inboard gear 30 and outboard gears 20 lubricate.
Simultaneously, when forming work oilhole 63 on the lower bearing 60 corresponding with above-mentioned fuel reserve tank K position, the working oil that is stored in seal container 1 bottom surface flows into fuel reserve tank K by this work oilhole 63.
When above-mentioned compressor structure portion started, running shaft 40 and inboard gear cooperated and combination by cutting part 43 and auxiliary section, plane 36, and the rotating force of running shaft 40 can more correctly be delivered on the inboard gear 30 thus.Running shaft 40 and inboard gear 30 can be with the Spielpassung combinations of states, also can be by hot pressing with the transition fit combinations of states.
Claims (5)
1. the Working oil supply structure of a gear compressor comprises: seal container, and the bottom surface has lubricant oil; Cylinder; Outboard gears, the inside of rotatably inserting cylinder; Inboard gear inserts the inside of outboard gears and contact formation a plurality of compression volumes in back with this outboard gears; Upper bearing and lower bearing are combined in the bi-side of cylinder, airtight compression volume respectively; Running shaft connect to insert on the bearing of top and the bottom, and combines with inboard gear, it is characterized in that: be provided with the fuel reserve tank (K) that fills lubricant oil between described running shaft (40) and the inboard gear (30) that combines with this running shaft.
2. the Working oil supply structure of gear compressor according to claim 1, it is characterized in that: a side of the lower bearing (60) relative with described fuel reserve tank (K) is formed with the work oilhole (63) that is communicated with this fuel reserve tank (K).
3. the Working oil supply structure of gear compressor according to claim 1, it is characterized in that: be formed with 2 cutting parts on the outer circumferential face of described running shaft (40) and the cutting part (43) of formation, be formed with the through hole (35) corresponding on the inboard gear (30) with the external diameter of running shaft (40), and be formed with this through hole (35) in the auxiliary section, plane (36) that a side inner peripheral surface cooperates with the cutting part (43) of running shaft, at the outer circumferential face of a side cutting part (43) of running shaft (40) and the fuel reserve tank (K) that forms with the inner peripheral surface of the outer circumferential face opposed inside gear of this cutting part (43).
4. the Working oil supply structure of gear compressor according to claim 3 is characterized in that: 2 cutting parts (43) interval, 180 degree of described running shaft (40).
5. the Working oil supply structure of gear compressor according to claim 1, it is characterized in that: described cylinder (10) is immersed in the working oil that is stored in seal container (1) bottom surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100141301A CN100572818C (en) | 2005-06-29 | 2005-06-29 | The Working oil supply structure of gear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100141301A CN100572818C (en) | 2005-06-29 | 2005-06-29 | The Working oil supply structure of gear compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1888438A true CN1888438A (en) | 2007-01-03 |
| CN100572818C CN100572818C (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100141301A Expired - Fee Related CN100572818C (en) | 2005-06-29 | 2005-06-29 | The Working oil supply structure of gear compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100572818C (en) |
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2005
- 2005-06-29 CN CNB2005100141301A patent/CN100572818C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN100572818C (en) | 2009-12-23 |
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Granted publication date: 20091223 Termination date: 20110629 |