CN2363091Y - Circular and corrected involute tooth high-viscosity gear pump - Google Patents
Circular and corrected involute tooth high-viscosity gear pump Download PDFInfo
- Publication number
- CN2363091Y CN2363091Y CN 98235455 CN98235455U CN2363091Y CN 2363091 Y CN2363091 Y CN 2363091Y CN 98235455 CN98235455 CN 98235455 CN 98235455 U CN98235455 U CN 98235455U CN 2363091 Y CN2363091 Y CN 2363091Y
- Authority
- CN
- China
- Prior art keywords
- gear
- pump
- rotor
- dextrorotation
- handed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model relates to a circular arc and corrected involute tooth-shaped high-viscosity gear pump composed of a driving pump gear rotor, a driven pump gear rotor, a pump body, a secondary entirety, a bearing shell, a synchronous gear pair, a mechanical sealing device, a bearing, an overflow valve, etc., wherein, the driving pump gear rotor arranged on a driving shaft is an inverted Y-shaped tooth formed by the combination of a left-hand pump gear and a right-hand pump gear, the driven pump gear rotor arranged on a driven shaft is an inverted Y-shaped tooth formed by the combination of a right-hand pump gear and a left-hand pump gear, and the two inverted Y-shaped teeth form a pair of inverted Y-shaped gear pair; the utility model uses the inverted Y-shaped gear pair to convey mediums, and the normal work of the rotors is driven by the synchronous gear pair; the left-hand and the right-hand four pump gears form composite curve tooth shapes or corrected involute tooth shapes.
Description
The new shape of this practicality is widely used in oil, chemical industry, light industry, medicine, food industry, is specially adapted to oil, chemical industry, light industry.
China is along with the development of oil, light industry industry at present, and the kind of high viscosity medium is more and more, and range of viscosities is more and more wideer, all more and more higher to the demand and the requirement of high viscosity gear pump.The high-viscosity pump kind that China produces is few, and the viscosity of its transmission medium is lower, generally below thousands of CP, can not satisfy market demands, and the external high viscosity gear pump expense of import is too high.
The purpose of this model utility is to design a kind of circular arc and correction involute profile high viscosity gear pump for solving the conveying of 1000-200.000CP high viscosity medium, and substituting import one is saved foreign exchange.
The technological scheme of this model utility: this pump is made up of active efflux gear forwarding rotor, slave pump gear rotor, the pump housing, sub-shell, synchromesh gear pair, mechanical seal, bearing, relief valve.The active efflux gear rotor of the secondary external gear pump of synchromesh gear is by left-handed pump gear and the synthetic herringbone tooth of dextrorotation pump gear on the driving shaft, the slave pump gear rotor be on the driven shaft by the synthetic herringbone tooth of dextrorotation pump gear and left-handed pump gear, two herringbone tooths herringbone tooth wheel set that partners.Fed sheet of a media realizes to the herringbone tooth wheel set that by this rotor proper functioning is to drive by synchromesh gear is secondary.The profile of tooth of two left-handed pump gears and two dextrorotation pump gears is the build-up curve profile of tooth or revises involute profile.
The concrete structure of this model utility, be described below in conjunction with the accompanying drawings: there are two sub-shells 5 on the pump housing 7 both sides, there are two bearing housinges 4 two sub-shell outer ends, adorn two cover bearings 3 in two bearing housinges respectively, top two cover bearing supporting driving shafts 2, be provided with mechanical seal 6 in 1, two sub-shell 5 of following two cover bearing supporting driven shafts, secondary 10 two synchromesh gears of synchromesh gear are contained in driving shaft 2 and driven shaft 1 outer end respectively.On driving shaft 2, synthesize word teeth by left-handed pump gear 8 and dextrorotation pump gear 9, two herringbone tooths herringbone tooth wheel set that partners, driving shaft 2 drives secondary 10 engagement driving of synchromesh gear when rotating, driven shaft 1 is rotated, reach the active efflux gear rotor and the slave pump gear rotor rotates simultaneously, two rotor rotation directions are opposite, rotate continuously high viscosity medium is sent outside the pump.Pump housing top is provided with relief valve 11, is to realize overvoltage protection.The profile of tooth of two left-handed pump gears and two dextrorotation pump gears is build-up curve profiles of tooth or revises involute profile.
This model utility has following advantage:
1, the pump gear modulus is big, the number of teeth is few, can transmit the very high medium of viscosity, and range of viscosities very (1000-200.000CP).
2, during proper functioning, transmission is meshed by synchromesh gear and is realized, the pump gear flank of tooth does not contact, so the pump gear wearing and tearing are little, and long service life.
3, the build-up curve pump gear and revise involute pump gear back lash evenly, leak little.
4, adopt mechanical seal, good seal performance.
5, cost is low, substitutes import, can save a large amount of foreign exchanges.
Description of drawings:
Accompanying drawing: circular arc and correction involute profile high viscosity gear pump structural representation: (Figure of abstract) 1, driven shaft 2, driving shaft 3, bearing 4, bearing housing 5, sub-shell 6, mechanical seal 7, the pump housing 8, left-handed pump gear 9, dextrorotation pump gear 10, synchromesh gear pair 11, relief valve
Claims (3)
1; a kind of circular arc and correction involute profile high viscosity gear pump; by the active efflux gear rotor; the slave pump gear rotor; pump housing sub-shell; bearing housing; the synchromesh gear pair; the gear sealing; bearing; parts such as relief valve are formed; it is characterized in that: the external gear pump that is band synchromesh gear pair; the active efflux gear rotor is by left-handed pump gear on the driving shaft; the dextrorotation pump gear synthesizes a herringbone tooth; the slave pump gear rotor is by the dextrorotation pump gear on the driven shaft; left-handed pump gear synthesizes a herringbone tooth; two herringbone tooths herringbone tooth wheel set that partners; fed sheet of a media is by this herringbone tooth wheel set to be realized; the rotor proper functioning is to drive by synchromesh gear is secondary; overall structure is: there are two sub-shells (5) on the pump housing (7) both sides; there are two bearing housinges (4) two sub-shell outer ends; adorn two cover bearings (3) in two bearing housinges respectively; top two cover bearing supporting driving shafts (2); following two cover bearing supporting driven shafts (1); be provided with mechanical seal (6) in two sub-shells (5); two synchromesh gears (10) that are meshed are contained in the outer end of driving shaft (2) and driven shaft (1) respectively; go up by left-handed pump gear (8) and the synthetic herringbone gear of dextrorotation pump gear (9) at driving shaft (2); go up by dextrorotation pump gear (9) and the synthetic herringbone tooth of left-handed pump gear (8) at driven shaft (1); the two herringbones herringbone tooth wheel set that partners; when rotating, driving shaft (2) drives synchromesh gear pair (10) engagement driving; driven shaft (1) is rotated; reach the active efflux gear rotor and the slave pump gear rotor rotates simultaneously; two rotor rotation directions are opposite; rotate continuously high viscosity medium is sent outside the pump; for realizing overvoltage protection, pump housing top is provided with relief valve (11).
2, according to said circular arc of claim 1 and correction involute profile high viscosity gear pump, it is characterized in that: two left-handed pump gears (8) and two dextrorotation pump gears (9) are the build-up curve profiles of tooth.
3, according to said circular arc of claim 1 and correction involute profile high viscosity gear pump, it is characterized in that: two left-handed pump gears (8) and two dextrorotation pump gears (9) are to revise involute profile.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98235455 CN2363091Y (en) | 1998-03-19 | 1998-03-19 | Circular and corrected involute tooth high-viscosity gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98235455 CN2363091Y (en) | 1998-03-19 | 1998-03-19 | Circular and corrected involute tooth high-viscosity gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2363091Y true CN2363091Y (en) | 2000-02-09 |
Family
ID=33983737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98235455 Expired - Fee Related CN2363091Y (en) | 1998-03-19 | 1998-03-19 | Circular and corrected involute tooth high-viscosity gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2363091Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481874A (en) * | 2014-11-27 | 2015-04-01 | 上海轩安环保科技有限公司 | Herringbone gear pump |
| CN105545730A (en) * | 2016-01-30 | 2016-05-04 | 太仓液压元件有限公司 | Durable mixture bearing pump |
| CN109642574A (en) * | 2016-08-30 | 2019-04-16 | 莱宝有限公司 | Dry compression vacuum pump |
| CN109968593A (en) * | 2019-02-14 | 2019-07-05 | 青岛科技大学 | A kind of screw pump stator rubber bushing molding machine and method |
-
1998
- 1998-03-19 CN CN 98235455 patent/CN2363091Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481874A (en) * | 2014-11-27 | 2015-04-01 | 上海轩安环保科技有限公司 | Herringbone gear pump |
| CN105545730A (en) * | 2016-01-30 | 2016-05-04 | 太仓液压元件有限公司 | Durable mixture bearing pump |
| CN109642574A (en) * | 2016-08-30 | 2019-04-16 | 莱宝有限公司 | Dry compression vacuum pump |
| CN109642574B (en) * | 2016-08-30 | 2020-08-04 | 莱宝有限公司 | Dry compression type vacuum pump |
| CN109968593A (en) * | 2019-02-14 | 2019-07-05 | 青岛科技大学 | A kind of screw pump stator rubber bushing molding machine and method |
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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 |