CN201836044U - Novel hydraulic gear pump - Google Patents
Novel hydraulic gear pump Download PDFInfo
- Publication number
- CN201836044U CN201836044U CN2010205589908U CN201020558990U CN201836044U CN 201836044 U CN201836044 U CN 201836044U CN 2010205589908 U CN2010205589908 U CN 2010205589908U CN 201020558990 U CN201020558990 U CN 201020558990U CN 201836044 U CN201836044 U CN 201836044U
- Authority
- CN
- China
- Prior art keywords
- gear
- pump
- gear pump
- driving
- novel hydraulic
- 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
Links
Images
Landscapes
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model belongs to the technical field of gear pumps and relates to a novel hydraulic gear pump for conveying liquid with strong corrosivity, toxicity and volatility. The novel hydraulic gear pump comprises a front end cover 4, a rear end cover 8 and a pump body 5, as well as a driving gear 9 and a driven gear 10 mutually meshed inside the pump body 5, and is characterized in that four non-locating bearing sheaths 6 are symmetrically mounted on two sides of the driving gear 9 and the driven gear 10, and a slide bearing 7 is mounted in each non-locating bearing sheath 6; and a mechanical seal 3 is mounted at the front end of a driving shaft 1 inside the front end cover 4. The novel hydraulic gear pump effectively solves the problems of a common gear pump that the end plane clearance can not be adjusted, requirements on an actuating medium are high, and end plane leakage is severe, and has the characteristics of simple structure, convenience in maintenance, low manufacturing cost, long service life, etc.
Description
Technical field
The utility model belongs to the gear pump technical field, relates to a kind of novel hydraulic gear pump that corrosivity is strong, have toxicity, volatile liquid of carrying.
Background technique:
Existing hydraulic gear pump is made up of devices such as the Sealing at the driving gear in housing and the housing, driven gear, side plate and the side plate back side and needle bearings.Logical driving shaft of driving gear and driven gear and driven shaft are installed in the pump housing, and the needle bearing bearing is contained in respectively in the end cap of both sides.Usually the modulus of gear pump middle gear is 2-8, is 5 the most common with modulus wherein; After the gear pump assembling, the gear face gap is directly decided by gearing tolerance and pump housing tolerance, makes difficulty.Present gear pump is because the regulation mechanism of floating after wearing clearance surpasses certain value, just must be changed component or scrap, thereby maintenance load is big, and the life-span of pump is short; Existing gear pump uses needle bearing, and this bearing is strong in corrosivity, viscosity is little, the inefficacy of very easily getting rusty in the unlubricated medium; Existing gear pump seals as axle with rubber seal, leaks easily.Therefore, existing gear pump generally is used for the oils medium, and strong in the face of corrosivity, when having toxicity, volatile liquid, often can not meet the demands.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art, provides a kind of simple in structure, easy to maintenance, can be used for carrying the novel hydraulic gear pump that corrosivity is strong, have toxicity, volatile liquid.
The utility model is realized in the following manner:
A kind of novel hydraulic gear pump, comprise front cover, rear end cover, the pump housing, and in the pump housing intermeshing driving gear, driven gear, front cover and rear end cover and the pump housing are fixedly linked, driving gear and driven gear are installed in respectively on driving shaft, the driven shaft; Four floating axle bearing sleeves are installed with it is characterized in that driving gear, driven gear bilateral symmetry, in the floating axle bearing sleeve sliding bearing are installed; Sliding bearing and driving shaft and driven shaft Spielpassung, floating axle bearing sleeve and pump housing Spielpassung guarantee can smallly float when pump housing variation in pressure to adjust the gear face gap; In front cover, the driving shaft front end is installed mechanical seal; Front-end face at front cover is equipped with the axle head end cap that can make the mechanical seal pretension.
Above-mentioned hydraulic gear pump is characterized in that: the mechanical seal of driving shaft front end is double mechanical seal.
Above-mentioned hydraulic gear pump is characterized in that: sliding bearing is a self oiling bearing.
The beneficial effects of the utility model are, have solved effectively that general gear pump gear end clearance is non-adjustable, working medium requirement height, end face reveal serious problem.As mentioned above, front and rear cover in the existing gear pump of the utility model employing floating axle bearing sleeve replacement supports the support as driving shaft and driven shaft, bearing housing can float in the pump housing, gear face adjustable gaps and replacing are simple, only need change the floating axle bearing sleeve when needing gets final product, not only the requirement to the integral processing of gear pump reduces greatly, and has increased the working life of pump greatly; Adopt sliding bearing to replace needle bearing in the existing gear pump, can make gear pump can be strong in corrosivity, proper functioning in the medium of poor lubrication, prolonged working life of pump; Adopt mechanical seal to replace original rubber seal, solved the serious problem of leakage of existing pump, can be used for having toxicity, the medium of volatile liquid, expanded the application area of gear pump greatly.This shows compared with prior art, have substantive features and progress in the utility model, be applied to production reality and can obtain good social benefit and economic benefit surely.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1-driving shaft, 2-axle head end cap, 3-mechanical seal, 4-front cover, the 5-pump housing, 6-floating axle bearing sleeve, 7-sliding bearing, 8-rear end cover, 9-driving gear, 10-driven gear, 11-driven shaft.
Embodiment:
Among Fig. 1, driving shaft 1, driven shaft 11, front cover 4, the pump housing 5, rear end cover 8, driving gear 9, driven gear 10 are the major part of general gear pump, on this basis, have added axle head end cap 2, mechanical seal 3, floating axle bearing sleeve 6, self oiling bearing 7.Driving gear 9, driven gear 10 are contained on driving shaft 1, the driven shaft 11 by the key connection respectively; At two sliding bearings 7 of the symmetrical respectively installation in two end face both sides of driving gear 9, driven gear 10; Sliding bearing 7 and floating axle bearing sleeve 6 interference fit; Sliding bearing 7 and driving shaft 1, driven shaft 11 Spielpassung; Four floating axle bearing sleeves 6 and the pump housing 5 Spielpassung; Front cover 4 and rear end cover 8 are contained in the forward and backward two ends of the pump housing 5 respectively by fastening screw trip bolt; Mechanical seal 3 is installed in the front cover 4 by driving shaft 1; The axle head end cap 2 that compresses mechanical seal 3 is fastened on the front cover 4.
This new gear pump is when work, and driving shaft 1 drives driving gear 9, and driving gear 9 drives driven gear 10 and driven shaft 11, realizes the fed sheet of a media purpose; Sliding bearing 7 in the floating axle bearing sleeve 6 supports driving shaft 1 and driven shaft 11 rotations; Because floating axle bearing sleeve 6 is a Spielpassung with the pump housing 5, floating axle bearing sleeve 6 can be along with the fluctuation minute movement of pump internal pressure is regulated driving gear 9, driven gear 10 end clearances, reduce end face and reveal, improve the efficient of pump, prolong the working life of gear pump thereby reduce wear; And when serious wear, only need to change floating axle bearing sleeve 6 and get final product, reduced cost.The utility model adopts sliding bearing 7, when carrying the medium of severe corrosive, unlubricated property, seems particularly crucial, the working life that can improve pump greatly; Simultaneously adopt mechanical seal to stop the MEDIA FLOW of revealing from axial clearance, when carrying volatile, poisonous medium, can effectively solve leakage problem, reach the requirement of zero leakage to the external world at axle head.
The problem that the technical solution of the utility model has solved effectively that general gear pump gear end clearance is non-adjustable, working medium requirement height, end face are revealed.The utility model can very effectively apply to carry strong, the unlubricated property of corrosivity, volatile, poisonous medium.As apply to the fields such as conveying of liquefied petroleum gas (LPG).Therefore with the obvious advantage, be worthy to be popularized.
Claims (3)
1. a novel hydraulic gear pump comprises front cover (4), rear end cover (8), the pump housing (5), and in the pump housing (5) intermeshing driving gear (9), driven gear (10); Front cover (4) and rear end cover (8) are fixedly linked with the pump housing (5), and driving gear (9) and driven gear (10) are installed in respectively on driving shaft (1), the driven shaft (11); Four floating axle bearing sleeves (6) are installed with it is characterized in that driving gear (9), driven gear (10) bilateral symmetry, sliding bearing (7) is installed in the floating axle bearing sleeve (6); Sliding bearing (7) and driving shaft (1) and driven shaft (11) Spielpassung, floating axle bearing sleeve (6) and the pump housing (5) Spielpassung; In front cover (4), driving shaft (1) front end is installed mechanical seal (3); Front-end face at front cover (4) is equipped with the axle head end cap (2) that can make mechanical seal (3) pretension.
2. hydraulic gear pump according to claim 1 is characterized in that: the mechanical seal (3) of driving shaft (1) front end is double mechanical seal.
3. hydraulic gear pump according to claim 1 and 2 is characterized in that: sliding bearing (7) is a self oiling bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205589908U CN201836044U (en) | 2010-10-13 | 2010-10-13 | Novel hydraulic gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205589908U CN201836044U (en) | 2010-10-13 | 2010-10-13 | Novel hydraulic gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201836044U true CN201836044U (en) | 2011-05-18 |
Family
ID=44006149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205589908U Expired - Fee Related CN201836044U (en) | 2010-10-13 | 2010-10-13 | Novel hydraulic gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201836044U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562576A (en) * | 2012-01-17 | 2012-07-11 | 浙江中禾机械有限公司 | Milk delivery pump |
| CN110500179A (en) * | 2019-09-16 | 2019-11-26 | 湖南机油泵股份有限公司 | A kind of structure that gear pump installation accuracy can be improved |
-
2010
- 2010-10-13 CN CN2010205589908U patent/CN201836044U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562576A (en) * | 2012-01-17 | 2012-07-11 | 浙江中禾机械有限公司 | Milk delivery pump |
| CN110500179A (en) * | 2019-09-16 | 2019-11-26 | 湖南机油泵股份有限公司 | A kind of structure that gear pump installation accuracy can be improved |
| CN110500179B (en) * | 2019-09-16 | 2024-03-15 | 湖南机油泵股份有限公司 | Structure capable of improving gear pump installation accuracy |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102400907B (en) | Internal gear pump | |
| CN102927002B (en) | High-pressure gear pump | |
| CN201184434Y (en) | Monomer axial flow type back valve with sealing ring arranged at front | |
| CN202392418U (en) | Rotor type short shaft sleeve oil pump provided with circulating lubrication oil groove | |
| CN201738961U (en) | Oil pump of transverse diesel engine | |
| CN201836044U (en) | Novel hydraulic gear pump | |
| CN201236795Y (en) | Plunger pump with novel structure | |
| CN202065185U (en) | Oil-free screw compressor with novel structure | |
| CN201588777U (en) | Light oil conveying high-pressure three-screw pump | |
| CN201650725U (en) | Gear pump | |
| CN201318287Y (en) | Oil-free scroll compressor of anti-rotation and flexible mechanism | |
| CN110594150B (en) | Spiral tooth double-arc tooth-shaped hydraulic gear pump with axial and radial static pressure support | |
| CN202149024U (en) | Inner-engaged gear pump and gap filling component | |
| CN204729347U (en) | High inlet pressure inter-section booster | |
| CN202118480U (en) | Lubrication pump for wind power generation gear case | |
| CN204901296U (en) | Liquid lubricated heavily loaded bearing mechanism | |
| CN202946373U (en) | Horizontal high-pressure double-screw pump | |
| CN210178480U (en) | Roller type piston of internal combustion engine | |
| CN202280616U (en) | Sliding vane pump | |
| CN201347914Y (en) | Hydraulic cylinder with floating clearance rod seal structure | |
| CN110617213A (en) | Spiral tooth double-arc tooth-shaped hydraulic gear pump with dynamic and static pressure floating support at shaft end | |
| CN204663868U (en) | A kind of profile control and water plugging pump adopting novel sealing structure | |
| CN110043389A (en) | A kind of internal combustion engine roller type piston | |
| CN2773351Y (en) | Local hydraulic compensated gear pump | |
| CN203404072U (en) | Floating side plate for gear diffluence motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110518 Termination date: 20141013 |
|
| EXPY | Termination of patent right or utility model |