CN201606243U - Novel high-pressure gear pump - Google Patents
Novel high-pressure gear pump Download PDFInfo
- Publication number
- CN201606243U CN201606243U CN2009203133033U CN200920313303U CN201606243U CN 201606243 U CN201606243 U CN 201606243U CN 2009203133033 U CN2009203133033 U CN 2009203133033U CN 200920313303 U CN200920313303 U CN 200920313303U CN 201606243 U CN201606243 U CN 201606243U
- Authority
- CN
- China
- Prior art keywords
- gear
- pressure
- casing
- novel high
- end cover
- 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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Abstract
The utility model relates to a novel high-pressure gear pump, which comprises a casing, a drive gear arranged in the casing, and a driven gear meshed with the drive gear, and is characterized in that the casing is formed by a machine body with a front end cover, and a back end cover which are connected into a whole by a headless bolt passing through the back end cover. The utility model adopts a two-piece-type casing structure, enhances the strength of the casing, reduces the high-pressure deformation of the casing, shortens the length of the fastener, effectively reduces the oil leakage, is free from the location of the location pin, optimizes the processing technic, adopts an eccentric locating device, ensures the radial uniform boring of the oil pump, reduces the high-pressure area, increases the compensation of the middle-pressure area, and reduces radial unbalance force.
Description
Technical field
The utility model relates to a kind of novel high-pressure gear pump, belongs to the oil hydraulic pump field.
Background technique
The housing of current most of oil hydraulic pumps adopts protecgulum, the pump housing and bonnet three parts to form, wherein because the protecgulum and the pump housing are separate piece, so not only reduce oil hydraulic pump bulk strength and rigidity, and discover that the rapid wear harm of most pumps is to run through the bolt hole of the pump housing and the weak link between the pump housing gear cavity.In addition, the locating stud mode is adopted in pump housing inner gear shaft location, and the difficulty that this has increased processing has influenced manufacturing efficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of novel high-pressure gear pump, and this oil pump has strengthened casing rigidity, and has guaranteed the coaxial precision of bearing hole with gear cavity, has reduced the radial imbalance force on the gear shaft, makes that the delivery pressure of pump is stable, and the life-span increases.
Of the present utility model being characterised in that: a kind of novel high-pressure gear pump, the driven gear that comprises casing and be located at the driving gear in the engine housing and mesh with driving gear is characterized in that: the single ended bolt of end cap linked into an integrated entity after described casing was worn long by body with front cover and rear end cover.
Advantage of the present utility model: the utility model oil liquid leakage reduces, pump housing intensity enhancing, and the radial imbalance force on the gear shaft reduces, and makes that bearing life increase and working pressure are stable.
Description of drawings
Fig. 1 is the utility model internal structure schematic representation.
Fig. 2 is the utility model housing construction figure.
Fig. 3 is the utility model floating side plate inner side surface structure diagram.
Fig. 4 is the utility model floating side plate outer side surface structure diagram.
Embodiment
With reference to figure 1, Fig. 2, Fig. 3 and Fig. 4, a kind of novel high-pressure gear pump, the driven gear (4) that comprises casing and be located at the driving gear (3) in the engine housing and mesh with driving gear, described casing wear long later by body with front cover (1) and rear end cover (2), and the single ended bolt of end cap links into an integrated entity.
The driven gear shaft that has the driving gear shaft (5) of driving gear (3) and have a driven gear (4) respectively through after the bearings at both ends (6) again before and after bearing housing (7) is installed in the casing die cavity in side bearing block set holes (8), described rear axle bearing sleeve (7-1) front side portion is installed in body (1) the bearing block set hole, and second half (7-2) is installed in the bearing block set hole of rear end cover (2).
Be provided with 8 font floating side plates (9) between main passive engaging gear and the bearing housing (7), described floating side plate (9) is provided with 3 shaped oil grooves (10) that are used to install seal ring (13) and seal ring external baffle (14) near the outer side surface (9-1) of bearing housing (7-1), inner side surface (9-2) near gear is provided with the high pressure oil through hole (11) that leads to sealing oil groove (10), and the upper and lower sides of described inner side surface (9-2) offers pressure oil self balancing conduit (12) respectively.
Front end at driving gear is equipped with a pair of outside framework oil seal (15), groove 1(16) and groove 2(17) respectively the fluid of lubricating bearings is introduced inlet port and make lubricating oil can form backflow.
The front end of above-mentioned driving gear (3) is equipped with a pair of outside framework oil seal (15), and the installed position of outside framework oil seal (15) offers groove (16), (17) that are communicated with inlet port.
Be evenly equipped with the tapped hole that parallels with gear shaft on the perimembranous of above-mentioned body and rear end cover adjacent face.
Claims (5)
1. novel high-pressure gear pump, the driven gear that comprises casing and be located at the driving gear in the engine housing and mesh with driving gear is characterized in that: the single ended bolt of end cap linked into an integrated entity after described casing was worn long by body with front cover and rear end cover.
2. novel high-pressure gear pump according to claim 1, it is characterized in that: the driven gear shaft that has the driving gear shaft of driving gear and have a driven gear respectively through after the bearings at both ends again before and after bearing housing is installed in the casing die cavity in the side bearing block set hole, described rear axle bearing sleeve front side portion is installed in the axis bearing sleeve seat hole, and second half is installed in the bearing block set hole of rear end cover.
3. novel high-pressure gear pump according to claim 1, it is characterized in that: be provided with 8 font floating side plates between main passive engaging gear and the bearing housing, described floating side plate is provided with 3 shaped oil grooves that are used to install seal ring and seal ring external baffle near the outer side surface of bearing housing, inner side surface near gear is provided with the high pressure oil through hole that leads to the sealing oil groove, and the upper and lower sides of described inner side surface offers pressure oil self balancing conduit respectively.
4. novel high-pressure gear pump according to claim 1 is characterized in that: the front end of described driving gear is equipped with a pair of outside framework oil seal, and the installed position of outside framework oil seal offers the groove that is communicated with inlet port.
5. novel high-pressure gear pump according to claim 1 and 2 is characterized in that: be evenly equipped with the tapped hole that parallels with gear shaft on the perimembranous of described body and rear end cover adjacent face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203133033U CN201606243U (en) | 2009-10-26 | 2009-10-26 | Novel high-pressure gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203133033U CN201606243U (en) | 2009-10-26 | 2009-10-26 | Novel high-pressure gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201606243U true CN201606243U (en) | 2010-10-13 |
Family
ID=42950949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203133033U Expired - Fee Related CN201606243U (en) | 2009-10-26 | 2009-10-26 | Novel high-pressure gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201606243U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619749A (en) * | 2012-04-11 | 2012-08-01 | 涂雪龙 | Impulse-wave gear pump |
| CN103122853A (en) * | 2013-01-11 | 2013-05-29 | 徐州科源液压股份有限公司 | High-pressure gear pump floating side plate with pressing plate |
| CN103527471A (en) * | 2013-10-22 | 2014-01-22 | 徐州科源液压股份有限公司 | High-pressure gear pump with inlaid nut |
-
2009
- 2009-10-26 CN CN2009203133033U patent/CN201606243U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102619749A (en) * | 2012-04-11 | 2012-08-01 | 涂雪龙 | Impulse-wave gear pump |
| CN102619749B (en) * | 2012-04-11 | 2015-05-06 | 涂雪龙 | Impulse-wave gear pump |
| CN103122853A (en) * | 2013-01-11 | 2013-05-29 | 徐州科源液压股份有限公司 | High-pressure gear pump floating side plate with pressing plate |
| CN103527471A (en) * | 2013-10-22 | 2014-01-22 | 徐州科源液压股份有限公司 | High-pressure gear pump with inlaid nut |
| CN103527471B (en) * | 2013-10-22 | 2016-04-13 | 徐州科源液压股份有限公司 | With the high-pressure gear pump of embedding nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101013 Termination date: 20131026 |