CN1888434A - Spindle combine structure for gear compressor - Google Patents
Spindle combine structure for gear compressor Download PDFInfo
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- CN1888434A CN1888434A CN 200510014126 CN200510014126A CN1888434A CN 1888434 A CN1888434 A CN 1888434A CN 200510014126 CN200510014126 CN 200510014126 CN 200510014126 A CN200510014126 A CN 200510014126A CN 1888434 A CN1888434 A CN 1888434A
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Abstract
The present invention provides a shaft combination structure of gear compressor. It includes the following several portions: cylinder, outside gear, inside gear, upper bearing, lower bearing and rotary shaft. On the described inside gear a shaft inserting hole is set, and on the described rotary shaft a combination portion is set, said combination portion is inserted into the shaft inserting hole of inside gear and can be used for transferring the rotation force of the rotary shaft to the inside gear, and said combination portion only can be moved towards one side direction of inside gear shaft inserting hole. Said structure can implement accurate contact between inside gear and outside gear, can inhibit leakage of compressed air and can raise compression efficiency.
Description
Technical field
The present invention relates to gear compressor, particularly can reduce the frictional force between the component parts and minimize the wearing and tearing of parts, in addition the spindle combine structure of the gear compressor of assembling part easily.
Background technique
Usually, compressor becomes kinetic energy with transformation of electrical energy, and by this kinetic energy compression refrigerant gas.Compressor is the core important document that constitutes refrigerating circulation system, according to the mechanism of compression refrigerant, be divided into rotary compressor (rotary compressor), vortex type compressor (scroll compressor), reciprocating compressor multiple kinds such as (reciprocal compressor).These compressors are used in refrigerator, air conditioner, show window etc.
In the above-mentioned rotary compressor, the rotating force of drive motor makes the running shaft rotation after being delivered to running shaft, and along with the rotation of above-mentioned running shaft, the eccentric part that is arranged on this running shaft one side rotates in the compression volume of cylinder block.When above-mentioned 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 above-mentioned running shaft, be combined in that rotation worm gear on this running shaft is meshed with fixing worm gear and suck cold media air when rotating, discharge again after compression.Such vortex type compressor is along with 1 week of drive motor rotation is discharged secondary compression gas continuously.
In above-mentioned reciprocating compressor, after the rotating force of drive motor is delivered to crankshaft, this crankshaft rotation.Along with the rotation of above-mentioned crankshaft, 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 press part, comprising: first gear is formed with a plurality of gear teeth on the inner circumferential surface; Second gear is formed with the gear tooth that number is less than the gear tooth number of above-mentioned first gear on its outer circumferential face, and rotates with above-mentioned first gear engagement.In such press part, above-mentioned 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 is the sectional view of the press part of said gear formula compressor, and Fig. 2 is a planimetric map.
As shown in the figure, the press 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 above-mentioned cylinder rotationally; Inboard gear 30 is formed with a plurality of gear teeth 31 on its outer circumferential face, insert above-mentioned outboard gears 20 rotationally and form a plurality of compression volume P with the gear tooth 21 of above-mentioned outboard gears 20; Running shaft 40 combines with above-mentioned inboard gear 30, is connected with the mechanism portion that produces rotating force again simultaneously; Upper bearing 50 and lower bearing 60 are combined in the top and the bottom of above-mentioned cylinder 10 respectively and support above-mentioned running shaft 40, make it possible to cover above-mentioned compression volume P.
Above-mentioned cylinder 10 is included in the gear patchhole 11 that the center of the inside of the main body portion 12 with certain 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 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 has the rod shape of certain-length.The internal diameter of the axle joining hole 33 of the external diameter of above-mentioned running shaft 40 and inboard gear is provided with accordingly.
Above-mentioned upper bearing 50 and lower bearing 60 be included in the middle of the main body portion 51,61 that has definite shape respectively, rotatably insert in the shaft insertion hole 52,62 of above-mentioned running shaft 40.
Above-mentioned running shaft 40 is combined on the axle joining hole 33 of above-mentioned inboard gear 30.Above-mentioned running shaft 40 be pressed into and secure bond above-mentioned inboard gear 30 the axle joining hole 33 on.Above-mentioned running shaft 40 and inboard gear 30 are pressed into by instantaneous heat and fix.In addition, above-mentioned running shaft 40 and inboard gear 30 also can pass through welding and secure bond.
And above-mentioned upper bearing 50 and lower bearing 60 are connected the both sides of above-mentioned cylinder 10 by the above-mentioned running shaft 40 of its shaft insertion hole 5161 interpolations.At this moment, above-mentioned 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.
The action of above-mentioned press part portion is as described 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 above-mentioned 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 above-mentioned 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.
And along with 30 rotations of above-mentioned inboard gear, when above-mentioned 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 above-mentioned compression volume P changes, gas is discharged through overcompression by after being arranged on suction device (not shown) on above-mentioned 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 volume P, and above-mentioned inboard gear 30 every rotations 60 degree, just discharge compressed gas at a compression volume P.In addition, when above-mentioned inboard gear 30 rotations 60 were spent, each compression volume P became identical shape.
Simultaneously, each parts that constitutes above-mentioned press part leak for minimum gas and the raising compression efficiency, require to carry out precision machining and accurate assembling tolerance.Usually, tens microns of the tolerances between the shaft insertion hole 5262 of running shaft 40 and top and the bottom bearing 5060, in addition between outboard gears 20 and the inboard gear 30 and the tolerance between outboard gears 20 and the cylinder 10 also be tens microns.The assembling and the machining tolerance that constitute each parts of press part all require so tolerance, thereby the unusual difficulty of the processing of parts and assembling.
Especially, in the structure of aforesaid press part, because inboard gear 30 and running shaft 40 are pressed into fixing, therefore under the state of this inboard gear 30 and running shaft 40 combinations during with other component-assembled, as shown in Figure 3, running shaft 40 is not only increasing frictional force between this running shaft 40 and the top and the bottom bearing 60 and between inboard gear 30 and the top and the bottom bearing 60 when the off-centre of center, also produce wearing and tearing, thereby have the problem that produces power loss and shorten component life.
Summary of the invention
The present invention is intended to address the above problem, and its purpose is to provide the wearing and tearing that can reduce the frictional force between the component parts and minimize parts, in addition the spindle combine structure of the gear compressor of assembling part easily.
In order to achieve the above object, the invention provides a kind of spindle combine structure of gear compressor, comprising: cylinder; Outboard gears, the inside of rotatably inserting above-mentioned cylinder; Inboard gear inserts the inside of above-mentioned outboard gears and contacts the back with this outboard gears and form a plurality of compression volumes; Upper bearing and lower bearing are combined in the bi-side of described cylinder, airtight above-mentioned compression volume respectively; Running shaft, connect and insert on the bearing of described top and the bottom, and combine with described inboard gear, wherein: described inboard gear is provided with shaft insertion hole, and on described running shaft, has the connecting part, this connecting part is inserted the shaft insertion hole of described inboard gear and the rotating force of running shaft is delivered to inboard gear, and this connecting part to the inside a side direction of gear shaft patchhole move.
The shaft insertion hole inner peripheral surface of described inboard gear and the outer circumferential face of described connecting part contact on corresponding slidably.
The shaft insertion hole of described inboard gear is to have the long hole shape setting of certain width and length, the both sides of the circular circumference face of the connecting part of described running shaft form two planes, and make and have between its circular outer circumferential face and the corresponding thickness of the width of described slotted hole.
Described external diameter in the connecting part that is installed in running shaft one side is slightly larger than the external diameter of axial region on the running shaft.
Effect of the present invention is in the spindle combine structure of this gear compressor, even above-mentioned running shaft combination a little prejudicially, because this running shaft and inboard gear are merely able to relatively move facing one direction, above-mentioned thus inboard gear always can be kept level with the top and the bottom bearing, thereby can reduce the frictional force between inboard gear and the top and the bottom bearing when having compressor start and suppress component wear and improve product reliability.In addition, because above-mentioned inboard gear and top and the bottom bearing are kept level, thereby can correctly contact between inboard gear and the outboard gears, suppress the leakage of pressurized gas thus and can prevent that the compression efficiency of gas from descending.Simultaneously, above-mentioned running shaft and inboard gear can relatively move, thereby can strengthen the assembling tolerance of parts, and are easy to make and assemble products from parts, have the effect that reduction is made unit price and improved assembling productivity.
Description of drawings
Fig. 1, the 2nd, the positive view of the press part of existing gear compressor and planimetric map;
Fig. 3 is the positive view of press part of eccentric state of running shaft of the press part of said gear formula compressor;
Fig. 4, the 5th, the positive view and the planimetric map of the press part of an embodiment's of gear compressor spindle combine structure of the present invention gear compressor;
Fig. 6 is other embodiments' of a gear compressor spindle combine structure of the present invention planimetric map;
Fig. 7 is the positive view of the operating state of gear compressor spindle combine structure of the present invention.
Among the figure:
10: cylinder 20: outboard gears
30: inboard gear 34: shaft insertion hole
40: running shaft 42: connecting part
50: upper bearing 60: lower bearing
Embodiment
Below, with reference to the embodiment of accompanying drawing detailed description according to the spindle combine structure of gear chamber compressor of the present invention.
Fig. 4, the 5th, the positive view and the planimetric map of press part of gear compressor with embodiment of gear compressor spindle combine structure of the present invention.
As shown in the figure, the press part portion of said gear formula compressor at first comprises: cylinder 10, and its inside is formed with gear patchhole 11; Outboard gears 20 is formed with a plurality of gear teeth on the inner circumferential surface, and inserts the gear patchhole 11 of above-mentioned cylinder 10 rotationally; Inboard gear 30 is formed with a plurality of gear teeth on its outer circumferential face, insert above-mentioned outboard gears 20 rotationally and form a plurality of compression volume P with the gear tooth 21 of above-mentioned outboard gears 20; Running shaft 40 inserts above-mentioned inboard gear 30 and combination; Upper bearing 50 and lower bearing 60 are combined in the top and the bottom of above-mentioned cylinder 10 respectively and support above-mentioned running shaft 40, make it possible to cover above-mentioned compression volume P.
Above-mentioned cylinder 10 has gear patchhole 11, and this gear patchhole 11 forms prejudicially in the inside of the cylinder body portion 12 with predetermined thickness and area and the center of this main body portion 12.
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.
On the above-mentioned inboard gear 30, on the outer circumferential face of gear main body portion 32, form a plurality of gear teeth 31, and in the middle of this gear main body portion 32, connect a formation axle joining hole 34 with certain thickness and toroidal.Above-mentioned shaft insertion hole 34 forms the slotted hole form with certain width and length.Have opposed facing two plane f on the inner peripheral surface of the shaft insertion hole 34 of above-mentioned slotted hole form, and these two plane f are parallel to each other.
Above-mentioned running shaft 40 is by having axial region 41 specific length, that form rod shape and can only be on the shaft insertion hole 34 of above-mentioned inboard gear 30 constituting to the connecting part 42 that a side direction is combined in a side of above-mentioned axial region 41 movably.Above-mentioned connecting part 42 forms plane f respectively in a part of both sides of axial region and constitutes, and makes to have width corresponding thickness with the shaft insertion hole 34 of above-mentioned long hole shape.The area of these two plane f is preferably identical.The connecting part 42 of above-mentioned running shaft insert above-mentioned inboard gear shaft insertion hole 34 and in conjunction with the time, two planes that constitute the connecting part 42 of this running shaft contact the shaft insertion hole inner peripheral surface of inboard gear 30 slidably.The external diameter of above-mentioned connecting part 42 is less than the length as the slotted hole of the shaft insertion hole 34 of above-mentioned inboard gear.
As another embodiment of above-mentioned running shaft connecting part 42, as shown in Figure 6, above-mentioned connecting part 42 forms plane f respectively in the outer circumferential face both sides of axial region 41 1 sides of running shaft 40 and constitutes, and its external diameter is greater than the external diameter of axial region 41.Thickness between the plane f of above-mentioned plane f is corresponding with the width of the shaft insertion hole 34 of above-mentioned slotted hole form.
The combining structure of above-mentioned running shaft 40 and above-mentioned inboard gear 30 makes this running shaft 40 form variform facing one direction movably at 34 of the shaft insertion holes of inboard gear 30 when the rotating force of above-mentioned running shaft 40 can be delivered to inboard gear 30.
Above-mentioned upper bearing 50 and lower bearing 60 be included in the middle of the main body portion 5161 that has definite shape respectively, rotatably insert the shaft insertion hole 5262 of above-mentioned running shaft 40.
Above-mentioned running shaft 40 inserts the shaft insertion hole 34 of above-mentioned inboard gear 30 by its connecting part 42 and combines with above-mentioned inboard gear 30.And above-mentioned upper bearing 50 and lower bearing 60 are connected the both sides of above-mentioned cylinder 10 by the above-mentioned running shaft 40 of its shaft insertion hole 5262 interpolations.At this moment, above-mentioned 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 running shaft 40 supports by the inner peripheral surface of the shaft insertion hole 52 of above-mentioned upper bearing 50 and shaft insertion hole 62 inner peripheral surfaces of lower bearing 60.
Above-mentioned running shaft 40 secure bond are on the mechanism portion that produces rotating force.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.
Below, the effect of gear compressor spindle combine structure of the present invention is described.
The press part of said gear formula compressor starts with aforementioned the samely, thereby omission specifies.In the above-mentioned press part running, because the connecting part 42 of running shaft is combined on the shaft insertion hole 34 of inboard gear 30, thereby the rotating force of running shaft 40 is delivered to inboard gear 30 by connecting part 42.At this moment, because the shaft insertion hole 34 of slotted hole form is inserted in the connecting part 42 of running shaft, thereby two faces of this connecting part 42 contact respectively on two faces of the inner peripheral surface that supports above-mentioned shaft insertion hole 34, thereby the rotating force of running shaft 40 is delivered to inboard gear 30 steadily.
And, assembly body and above-mentioned outboard gears 20 and top and the bottom bearing 50 at above-mentioned running shaft 40 and inboard gear 30, in the process of 60 combinations, above-mentioned running shaft 40 is with last, lower bearing 50, the center of 60 shaft insertion hole 5262 is inconsistent and eccentric, perhaps inboard gear 30 and top and the bottom bearing 50, in the time of can not constituting correct level between 60, as shown in Figure 7, the connecting part 42 of this running shaft 40 and the shaft insertion hole 34 of inboard gear 30 can move facing one direction, thereby above-mentioned inboard gear 30 and top and the bottom bearing 50,60 always can keep correct level.
Claims (4)
1, a kind of spindle combine structure of gear compressor comprises: cylinder; Outboard gears, the inside of rotatably inserting above-mentioned cylinder; Inboard gear inserts the inside of above-mentioned outboard gears and contacts the back with this outboard gears and form a plurality of compression volumes; Upper bearing and lower bearing are combined in the bi-side of described cylinder, airtight above-mentioned compression volume respectively; Running shaft connects and inserts on the bearing of described top and the bottom, and combines with described inboard gear, it is characterized in that:
Described inboard gear (30) is provided with shaft insertion hole (34), and on described running shaft (40), has connecting part (42), this connecting part (42) is inserted the shaft insertion hole (34) of described inboard gear (30) and the rotating force of running shaft is delivered to inboard gear (30), and this connecting part (42) to the inside a side direction of gear shaft patchhole move.
2, the spindle combine structure of gear compressor according to claim 1 is characterized in that: shaft insertion hole (34) inner peripheral surface of described inboard gear (30) and the outer circumferential face of described connecting part (42) contact on corresponding slidably.
3, the spindle combine structure of gear compressor according to claim 1, it is characterized in that: the shaft insertion hole (34) of described inboard gear (30) is to have the long hole shape setting of certain width and length, the both sides of the circular circumference face of the connecting part of described running shaft (42) form two planes (f), and make and have between its circular outer circumferential face and the corresponding thickness of the width of described slotted hole.
4, the spindle combine structure of gear compressor according to claim 3 is characterized in that: described external diameter in the connecting part that is installed in running shaft (40) one sides (42) is slightly larger than the external diameter that running shaft (40) is gone up axial region (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014126 CN1888434A (en) | 2005-06-29 | 2005-06-29 | Spindle combine structure for gear compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014126 CN1888434A (en) | 2005-06-29 | 2005-06-29 | Spindle combine structure for gear compressor |
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| Publication Number | Publication Date |
|---|---|
| CN1888434A true CN1888434A (en) | 2007-01-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510014126 Pending CN1888434A (en) | 2005-06-29 | 2005-06-29 | Spindle combine structure for gear compressor |
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| CN (1) | CN1888434A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113163990A (en) * | 2018-12-17 | 2021-07-23 | 株式会社Ldt | Bidirectional simultaneous rotating blade bundle for mixer |
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2005
- 2005-06-29 CN CN 200510014126 patent/CN1888434A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113163990A (en) * | 2018-12-17 | 2021-07-23 | 株式会社Ldt | Bidirectional simultaneous rotating blade bundle for mixer |
| CN113163990B (en) * | 2018-12-17 | 2024-05-31 | 福库电子株式会社 | Bidirectional simultaneous rotating blade bundle for stirrer |
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Open date: 20070103 |