CN2674155Y - Internal meshing composite wheel teeth type gas compressor - Google Patents
Internal meshing composite wheel teeth type gas compressor Download PDFInfo
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- CN2674155Y CN2674155Y CN 200320104732 CN200320104732U CN2674155Y CN 2674155 Y CN2674155 Y CN 2674155Y CN 200320104732 CN200320104732 CN 200320104732 CN 200320104732 U CN200320104732 U CN 200320104732U CN 2674155 Y CN2674155 Y CN 2674155Y
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Abstract
The utility model discloses an internal meshing composite wheel teeth type gas compressor, relating to a wheel teeth type flow compressing mechanism. The internal meshing composite wheel teeth type gas compressor aims to solve the problem that the existing external meshing mechanism has small coincidence factor, high noise, small sectional area of the vent and large clearance volume. The gas compressor comprises a closed chamber (7), a housing of a gas inlet (8) communicated with the closed chamber and a housing of a gas outlet (10) communicated with the closed chamber. The closed chamber is provided with small teeth (13) and a driving gear (12) of a large tooth (14a) or a large tooth (14b). The closed chamber is respectively provided with small teeth (21) meshed with the small teeth and the big teeth of the driving gear and a driven gear of at least one of big tooth grooves (22a, 22b, 22c). In the engagement process, each instant driving ratio is equal. The driven gear is a driven gear ring (20) which is sheathed round the driving gear. The inner part of the driven gear ring is provided with a sector plate (23) which is glidingly matched with the big tooth in a closed type, and the sector plate can divide the hollow cavity surrounded by the driving gear and the driven gear ring into a suction chamber (25) communicated with the gas inlet and a press chamber (26) communicated with the gas outlet. The gas compressor is applied to compress the gas.
Description
Technical field
The utility model relates to rotary piston pump, particularly gear tooth-type gas compressor.
Background technique
Existing gear tooth type fluid compression engine structure, as Patent Office of the People's Republic of China's disclosed composite gear tooth-type gas compressor in CN1191940A, the confined space that has housing and upper and lower end cap to constitute, inlet hole that is communicated with confined space and exhaust port, little tooth and the canine tooth of conjugation engagement or the driving gear and the driven gear of big teeth groove of conjugation engagement are housed in the confined space, and above-mentioned canine tooth makes the cavity of housing form the suction chamber that is communicated with inlet hole and can be communicated with the pressure chamber of exhaust port.The compressing mechanism of this compressor is a kind of employing combined gear teeth outer gearing gas compression mechanism.Though it is simple in structure, part is few, easy to manufacture, stability of rotation, vibrating noise is little, the life-span is long, cost is low, basic freedom from repairs.There are the following problems for this compressor: along with the increase of compressor design discharge capacity, the diameter of inevitable requirement gear increases, and causes the compressor volume excessive.Secondly, the overlap coefficient of outer gearing formula gear engagement is less, if accuracy of manufacturing is not enough, must cause gear-driven mechanicalness noise; Moreover the exhaust port of compressor is located at end face, and its projection is positioned at the rotary annular face of big teeth groove, and area is big inadequately in general, and exhaust velocity is higher, influences the further raising of compressor rotary speed.More than three problems affect complex wheel-tooth type compressor seriations exploitation and using.
The model utility content
In view of above-mentioned, the purpose of this utility model is the interior engagement composite gear tooth-type gas compressor that a kind of volume is less, the overlap coefficient of gear engagement is bigger, stable, noise is little, volumetric efficiency is higher is provided, and a kind of have big exhaust port, interior engagement composite gear tooth-type gas compressor that exhaust velocity is lower further are provided.
The utility model is on the basis of existing combined gear teeth outer gearing gas compression mechanism, in adopting the meshing wheel gear mechanism with the overlap coefficient that increases gear engagement, reduce noise, improve volumetric efficiency and realize its purpose, and further adopt exhaust port is arranged on the end cap of body or housing and realize its purpose to increase the exhaust port area of passage.
Engagement composite gear tooth-type gas compressor (referring to accompanying drawing) in of the present utility model, include closed chamber (7) and the inlet hole (8) that is communicated with and the housing of exhaust port (10), driving gear in the closed chamber (12) has little tooth (13) and at least one canine tooth (14A, 14B), driven gear with the engagement of driving gear conjugation is arranged, have on the driven gear respectively and the little tooth (13) of driving gear and little tooth (21) and at least one big teeth groove (22a of canine tooth engagement, 22b, 22c), each instantaneous transmission ratio equates in the above-mentioned engagement process, above-mentioned driven gear is the driven tooth wheel rim (20) of ring set outside driving gear, has in the driven tooth wheel rim can be sealed mode with above-mentioned canine tooth and be slidingly matched driving gear, the cavity that the driven gear corral becomes is separated into the swing link (23) of suction chamber (25) that can be communicated with inlet hole and the pressure chamber (26) that can be communicated with exhaust port.
The body (1) that above-mentioned housing has a plate shape be the airtight end cap that is connected in plane (3,4) with the two end plates face of body, above-mentioned closed chamber (7) is formed by the round chamber and the two end cap of the plate central part of body, the periphery of above-mentioned driven tooth wheel rim (20) and the chamber wall of closed chamber match and are the right cylindrical that sealed mode is slidingly matched, above-mentioned driving gear (12) is the right cylindrical that sealed mode is slidingly matched with end cap, driving gear is fixedlyed connected with driving shaft (15), driving shaft and end cap are rotationally connected, and above-mentioned swing link (23) is connected with end cap.
Above-mentioned driving gear (12) can be fixedlyed connected with driving shaft (15), and driving shaft and end cap (3) are rotationally connected, and above-mentioned driven tooth wheel rim (20) also can be fixedlyed connected with driven shaft (29), and driven shaft and end cap (4) are rotationally connected.
Above-mentioned inlet hole (8) and exhaust port (10) can be on end caps (4), and inlet hole and exhaust port have recessed end cap respectively and the air-inlet cavity (9) and the exhaust cavity (11) of the annular that matches with the rotary annular chamber of big teeth groove (22a, 22b, 22c).
The bottom land of above-mentioned big teeth groove (22a, 22b, 22c) can run through the outer peripheral surface of driven tooth wheel rim (20), above-mentioned inlet hole (8) and exhaust port (10) can be on bodies (1), and inlet hole and exhaust port have the suction port (27) and the relief opening (28) of the annular on the chamber wall that is positioned at closed chamber (7) respectively.
Thereby engagement composite gear tooth-type gas compressor in constituting.
Of the present utility model use with move identical with common composite gear tooth-type gas compressor.
The utility model is compared with existing outer gearing composite gear tooth-type gas compressor, has following advantage and effect.
One, interior engagement combined gear teeth structure of the present utility model, structure is simple especially, and a compressor major part organism, end cap, driving gear, driven inner gear ring, swing link have little, the advantage of low manufacturing cost of volume.
Two, inside engaged gear structure of the present utility model, the inside engaged gear overlap coefficient is big, motion steadily, vibration is little, so this compressor to have a volume little, the advantage that running noises is little.
Three, the closed shell structure that is made of the end cap at body and two ends thereof of the present utility model is enclosed in the gear teeth meshing rotational noise in the housing, so this compressor has the little advantage of noise.
Four, two of exhaust port of the present utility model kinds of structures, the one, exhaust port is on end cap, and the structure of the recessed end cap inboard of the exhaust cavity of the annular of exhaust port; The 2nd, exhaust port is on body, and the relief opening of the annular of exhaust port is positioned at the structure of the chamber wall of closed chamber.Owing to adopt the inside engaged gear structure, thus, the area of passage of exhaust cavity or relief opening can increase again, and the overcurrent time of exhaust port also can increase thereupon.Therefore, the exhaust port area of this gas compression mechanism can increase 2.5 times than the outer gearing composite gear tooth-type gas compressor, and its period of exhaust can prolong 1 times, and exhaust velocity reduces, and compressor rotary speed can further improve.
Five, inside engaged gear structure of the present utility model, clearance volume are zero substantially, can increase substantially the volumetric efficiency of compressing mechanism, and this compressor volume efficient improves 5～7% than the outer gearing composite gear tooth-type gas compressor.
The utility model is applicable to pressurized gas.
Below, the utility model is further described to use embodiment and accompanying drawing thereof again.
Description of drawings
Fig. 1 is the structural representation of a kind of interior engagement composite gear tooth-type gas compressor of the present utility model.Right TV structure behind the displayed map 2 dismounting right side end caps, inlet hole and exhaust port housing are on the end cap of housing.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3, Fig. 4 are respectively two rotation instantaneous state figure of the gas compressor of Fig. 1.
Fig. 5 is the structural representation of engagement composite gear tooth-type gas compressor in the another kind of the present utility model.Right TV structure behind the displayed map 4 dismounting end caps 3, inlet hole and the exhaust port structure on the body of housing.
Fig. 6 is the vertical profile left view of Fig. 5.
Embodiment
Embodiment 1
A kind of interior engagement composite gear tooth-type gas compressor of the present utility model is shown in accompanying drawing 1～4.Constitute by housing, driving gear, driven tooth wheel rim, swing link etc.
Above-mentioned housing referring to Fig. 1,2, is made up of a body and two end caps.Body 1 is plate-like, and the plate face of both sides is the plane that is parallel to each other.Top is ring, the round chamber of center for connecting, and two legs are arranged at the bottom, and common anchor bolt assembly 2 is all arranged on two legs, are used for fixing this compressor is installed.Respectively there are an end cap 3 and end cap 4 in the two ends of body.Two end cap all is circular plate type, is with body biside plate face that the plane is airtight to be cooperated.Locate with the pin 5 that runs through end cap 3, body 1 and end cap 4 in top and bottom.The three is joined together with a plurality of screw 6 with respect to the annulus portion of body, thereby the round chamber of body and end cap 3 and end cap 4 constitute the closed chamber 7 of right cylindrical.At the position, the inside upper part left and right sides of end cap 4 (also can be end cap 3), open respectively and be shaped on and extraneous inlet hole 8 and the exhaust port 10 that communicates.Inlet hole and exhaust port have respectively apart from the air-inlet cavity 9 and the exhaust cavity 11 of the annular of the suitable distance of inner peripheral wall of closed chamber 7 and recessed end cap, thereby are communicated with closed chamber.
Above-mentioned driving gear 12 referring to Fig. 1,2, is the right cylindrical gear structure.Driving gear is arranged in closed chamber 7, and its both ends of the surface and end cap 3 and end cap 4 inner side surfaces are sealed mode and are slidingly matched.Driving gear has little tooth 13 and equally distributed canine tooth 14A, canine tooth 14B on circumference.The common key 16 of driving gear and driving shaft 15 usefulness is fixedlyed connected with keyway.Driving shaft runs through end cap 3 and end cap 4, and bearing 17 is installed respectively between two end cap and driving shaft, thereby driving shaft and end cap are and are rotationally connected.Install the gland 19 of bearing respectively with screw 18 in the two end cap outside.
Above-mentioned driven tooth wheel rim 20 referring to Fig. 1,2, is the inner gear structure of straight annulus cylindricality, and ring set is outside driving gear 12.The chamber wall of the periphery of driven tooth wheel rim and closed chamber 7 matches and is sealed mode and is slidingly matched, and is shaped on the equally distributed big teeth groove 22a on little tooth 21 and the circumference, big teeth groove 22b, big teeth groove 22c interior week.The little tooth of driven tooth wheel rim 20 and big teeth groove respectively with the little tooth 13 and the canine tooth engagement of driving gear 12.Each instantaneous transmission ratio equates in the above-mentioned engagement process.The above-mentioned air-inlet cavity and the position of exhaust cavity should be respectively match with the rotary annular chamber of big teeth groove.
Above-mentioned swing link 23 referring to Fig. 1,2, is dull and stereotyped crescent shape.Fixedly connected with end cap 4 with end cap 3 respectively with screw 24 and swing link be fixed in the driven tooth wheel rim 20 in its both sides.The circular inner peripheral surface of swing link and the tooth top of canine tooth 14A, 14B are sealed mode and are slidingly matched, thereby, point of contact with canine tooth and canine tooth and swing link is the boundary, the cavity that driving gear, driven gear corral are become is separated into and suction chamber 25 and pressure chamber 26, and the volume in suction chamber and pressure chamber increases, dwindles along with the change of canine tooth and swing link point of contact.Suction chamber 25 and pressure chamber 26 are communicated with inlet hole 8 and exhaust port 10 respectively.
As above constitute a kind of interior engagement composite gear tooth-type gas compressor of the present utility model.
Use this gas compressor, driving shaft 15 is connected with common power such as electric motor drive, and exhaust port 10 is with container or use the equipment of pressurized gas to be communicated with.Referring to Fig. 1, motoring driving shaft 15 is together with driving gear 12 rotations, thereby, driven tooth wheel rim 20 rotations with driving gear 12 engagements, at this moment, the preceding flank of tooth top engagement of the canine tooth 14A nipper basifacial of driving gear 12 and the big teeth groove 22a of driven tooth wheel rim 20, the tooth top of canine tooth 14B is positioned at the back flank of tooth tooth root position of big teeth groove 22c.Thereby, suction chamber 25 volumes that surround between the ring part of the driving gear 12 between point of contact, above-mentioned contact points and the point of contact of the contact points of canine tooth 14A and big teeth groove 22a, canine tooth 14B and big teeth groove 22c and the ring part of driven tooth wheel rim 20 increase, suction chamber is communicated with outside air-inlet cavity 9, inlet hole 8 and machine, be in the air inlet state, from extraneous suction gas.Simultaneously, pressure chamber 26 volumes that surround between the ring part of the contact points of the little tooth 21 of the point of contact of canine tooth 14B and big teeth groove 22c, the little tooth 13 of driving gear 12 and driven tooth wheel rim 20, the ring part of going up the driving gear 12 between point of contact and contact points and driven tooth wheel rim 20 dwindle, the pressure chamber is about to exhaust port 10 connections access failure still, pressure chamber 26 is in compressive state, and will begin to discharge outside machine pressurized gas.
Referring to Fig. 3, under motoring, driving gear 12 engagement driven tooth wheel rims 20 continue rotation, at this moment, flank of tooth upper end contacts with the nipper basifacial of the big teeth groove 22a of driven tooth wheel rim 20 before the canine tooth 14A of driving gear 12, and mesh with the back flank of tooth bottom of big teeth groove 22c on the back flank of tooth top of canine tooth 14B.Thereby suction chamber 25 volumes continue to increase, and still are in the air inlet state.Simultaneously, pressure chamber 26 volumes continue to dwindle, and the pressure chamber is communicated with exhaust port 10 through exhaust cavity 11, is in exhaust condition, discharges pressurized gas outside machine.
Referring to Fig. 4, under motoring, driving gear 12 engagement driven tooth wheel rims 20 continue rotation, and at this moment, the canine tooth 14A tooth top of driving gear 12 sealed mode on the inner peripheral surface of swing link is slided, and canine tooth 14B and big teeth groove 22c all mesh.Thereby, the volume of the current suction chamber 25 that surrounds between the ring part of the driving gear 12 between point of contact, contact points and the point of contact of preceding flank of tooth tooth root contact points, canine tooth 14A and the swing link of canine tooth 14B and big teeth groove 22c, the ring part of driven tooth wheel rim 20 and the swing link inner peripheral surface increases, suction chamber is communicated with outside air-inlet cavity 9, inlet hole 8 and machine, from extraneous suction gas, promptly suction chamber is in the air inlet state.Simultaneously, driving gear 12 between back flank of tooth tooth root contact points, point of contact and the contact points of the point of contact of canine tooth 14A and swing link, canine tooth 14B and big teeth groove 22c the ring part of ring part, driven tooth wheel rim 20 and the swing link inner peripheral surface between current pressure chamber 26 volumes that convert to by a last suction chamber that surround dwindle, be in the pressurized gas state.
Under motoring, driving gear 12 engagement driven tooth wheel rims 20 continue rotation, and gas compressor enters state shown in Figure 1 from state shown in Figure 3.
As mentioned above, gas compressor rotates continuously, moves discontinuous ground suction gas, pressurized gas, discharge pressurized gas continuously.
Embodiment 2
Engagement composite gear tooth-type gas compressor in the another kind of the present utility model is shown in accompanying drawing 5,6.Its basic structure is identical with embodiment 1, and running is identical with embodiment 1, and the characteristics of present embodiment are as follows:
1. inlet hole 8 and exhaust port 10 are all on body 1.Inlet hole and exhaust port have the suction port 27 and the relief opening 28 of the annular on the chamber wall that is positioned at closed chamber 7 respectively.
2. the bottom land of big teeth groove 22a, big teeth groove 22b, big teeth groove 22c runs through the outer peripheral surface of driven tooth wheel rim 20, thereby big teeth groove can be connected with suction port 27 or relief opening 28 on the closed chamber 7 chamber walls.
3. in end cap 3 and end cap 4, two bearings 17 at a distance of suitable distance are set respectively.Driving shaft 15 is installed on two bearings 17 in the end cap 3 and is cantilever structure, and medial extremity is installed driving gear 12.The driven shaft 29 of the multidiameter shaft shape that is cantilever structure is installed on two bearings 17 in end cap 4.The inboard big end 30 of driven shaft 29 is disc, and driven tooth wheel rim 20 usefulness pins 31 are fixed on the card of inboard big end 30.
During the present embodiment operation, the big teeth groove that relies on bottom land to run through makes operating suction chamber and pressure chamber big teeth groove through running through and 8 connections of suction port 27 inlet holes respectively, or connects through relief opening 28 and exhaust port 10.Illustrated referring to Fig. 5.
The running state of present embodiment shown in Figure 5 is identical with embodiment 1 running state shown in Figure 3.Its difference is: because big teeth groove 22a bottom land runs through, be in the suction chamber 25 of air inlet state, the suction port 27 on closed chamber 7 chamber walls is connected and the suction ambient atmos with inlet hole 8.Simultaneously,, be in the pressure chamber 26 of exhaust condition, outside machine, discharge pressurized gas because big teeth groove 22c bottom land runs through.
Claims (5)
1. mesh composite gear tooth-type gas compressor in one kind, include closed chamber (7) and the inlet hole (8) that is communicated with and the housing of exhaust port (10), driving gear in the closed chamber (12) has little tooth (13) and at least one canine tooth (14A, 14B), driven gear with the engagement of driving gear conjugation is arranged, have on the driven gear respectively and the little tooth (13) of driving gear and little tooth (21) and at least one big teeth groove (22a of canine tooth engagement, 22b, 22c), each instantaneous transmission ratio equates in the above-mentioned engagement process, it is characterized in that above-mentioned driven gear is the driven tooth wheel rim (20) of ring set outside driving gear, have in the driven tooth wheel rim can be sealed mode with above-mentioned canine tooth and be slidingly matched driving gear, the cavity that the driven gear corral becomes is separated into the swing link (23) of suction chamber (25) that can be communicated with inlet hole and the pressure chamber (26) that can be communicated with exhaust port.
2. engagement composite gear tooth-type gas compressor in according to claim 1, it is characterized in that body (1) that said housing has a plate shape and be the airtight end cap that is connected (3 in plane with the two end plates face of body, 4), said closed chamber (7) is formed by the round chamber and the two end cap of the plate central part of body, the periphery of said driven tooth wheel rim (20) and the chamber wall of closed chamber match and are the right cylindrical that sealed mode is slidingly matched, said driving gear (12) is the right cylindrical that sealed mode is slidingly matched with end cap, driving gear is fixedlyed connected with driving shaft (15), driving shaft and end cap are rotationally connected, and said swing link (23) is connected with end cap.
3. engagement composite gear tooth-type gas compressor in according to claim 1, it is characterized in that body (1) that said housing has a plate shape and be the airtight end cap that is connected (3 in plane with the two end plates face of body, 4), said closed chamber (7) is formed by the round chamber and the two end cap of the plate central part of body, the periphery of said driven tooth wheel rim (20) and the chamber wall of closed chamber match and are the right cylindrical that sealed mode is slidingly matched, said driving gear (12) is the right cylindrical that sealed mode is slidingly matched with end cap, driving gear is fixedlyed connected with driving shaft (15), driving shaft and end cap (3) are rotationally connected, said driven tooth wheel rim (20) is fixedlyed connected with driven shaft (29), driven shaft and end cap (4) are rotationally connected, and said swing link (23) is connected with end cap.
4. according to claim 2 or 3 described interior engagement composite gear tooth-type gas compressors, it is characterized in that said inlet hole (8) and exhaust port (10) on end cap (4), inlet hole and exhaust port have recessed end cap respectively and the air-inlet cavity (9) and the exhaust cavity (11) of the annular that matches with the rotary annular chamber of big teeth groove (22a, 22b, 22c).
5. according to claim 2 or 3 described interior engagement composite gear tooth-type gas compressors, it is characterized in that the bottom land of said big teeth groove (22a, 22b, 22c) runs through the outer peripheral surface of driven tooth wheel rim (20), said inlet hole (8) and exhaust port (10) are on body (1), and inlet hole and exhaust port have the suction port (27) and the relief opening (28) of the annular on the chamber wall that is positioned at closed chamber (7) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104732 CN2674155Y (en) | 2003-12-31 | 2003-12-31 | Internal meshing composite wheel teeth type gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320104732 CN2674155Y (en) | 2003-12-31 | 2003-12-31 | Internal meshing composite wheel teeth type gas compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674155Y true CN2674155Y (en) | 2005-01-26 |
Family
ID=34474290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320104732 Expired - Fee Related CN2674155Y (en) | 2003-12-31 | 2003-12-31 | Internal meshing composite wheel teeth type gas compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2674155Y (en) |
-
2003
- 2003-12-31 CN CN 200320104732 patent/CN2674155Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |