CN104533783A - A gear pump - Google Patents
A gear pump Download PDFInfo
- Publication number
- CN104533783A CN104533783A CN201410640261.XA CN201410640261A CN104533783A CN 104533783 A CN104533783 A CN 104533783A CN 201410640261 A CN201410640261 A CN 201410640261A CN 104533783 A CN104533783 A CN 104533783A
- Authority
- CN
- China
- Prior art keywords
- pump
- pump cover
- gear
- main shaft
- 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.)
- Pending
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention relates to a gear pump. The gear pump comprises a bearing device, a blocking device, rolling rods, a back pump cover, a fixing device, a gear, a pump body, a front pump cover, a bolt, a compression part, a seal ring, a main shaft and a driven shaft. The pump body is disposed between the back pump cover and the front pump cover. The pump body, the back pump cover and the front pump cover are fixedly connected through the bolt. One end of the main shaft penetrates the front pump cover, the pump body and the back pump cover. The blocking device is disposed in the back pump cover and at one end of the main shaft. The rolling rods are disposed between the end of the main shaft and the back pump cover. The gear is disposed in the pump body. The fixing device is disposed between the main shaft and the gear. The compression part is disposed on the front pump cover, and is compressed on the main shaft through the seal ring. The gear pump has good transmission effects, prevents pressure oil from leaking to the outside of the pump from a position between the pump body and the pump covers, and reduces tension of a compression bolt.
Description
Technical field
The present invention relates to technical field of mechanical transmission, what be specifically related to is a kind of gear pump.
Background technique
Gear pump relies on the swept volume formed between pumping cylinder and engaging gear to change and the mobile rotary pump carried liquid or make it supercharging.Form two enclosed spaces by two gears, the pump housing and front and rear covers, when pinion rotation, the volume in the space of the side that is out of gear is large from little change, forms vacuum, is sucked by liquid, and liquid from diminishing greatly, and is clamp-oned in pipeline and gone by the volume in the space of gears meshing side.Suction chamber and discharge side lean on the line of contact of two gears to separate.The pressure of the exhaust port of gear pump depends on the size pumping place's resistance completely.
Summary of the invention
For the deficiency that prior art exists, the invention provides the gear pump that transmission is effective.
To achieve these goals, the present invention realizes by the following technical solutions:
A kind of gear pump, it comprises bearing means, blocking device, roll rod, rear pump cover, fixing device, gear, the pump housing, front pump cover, screw, compacting part, seal ring, main shaft and driven shaft, the described pump housing is between rear pump cover and front pump cover, the described pump housing, rear pump cover is fixedly connected with by screw with front pump cover, front pump cover is run through in described main shaft one end, the pump housing and rear pump cover, main shaft one end described in blocking device is set in described rear pump cover, between described main shaft one end and rear pump cover, the rod that rolls is set, described gear arranges in the pump housing, between described main shaft and described gear, fixing device is set.
Further, described compacting part is arranged on front pump cover.
Further, described compacting part is pressed on main shaft by seal ring.
According to one embodiment of the invention, the described pump housing also arranges driven shaft.
Compared with prior art, the invention has the beneficial effects as follows:
A kind of gear pump of the present invention, there is transmission effective, prevent pressure oil to be leaked to pump between the pump housing and pump cover, and reduce the pulling force of housing screw, the end face of pump housing both sides has oil sealing compensating groove, makes the pressure oil between the infiltration pump housing and pump cover introduce oil sucting cavity.
Accompanying drawing explanation
The present invention is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is gear pump structure schematic diagram according to an embodiment of the invention.
Embodiment
The technological means realized for making the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the present invention further.
As shown in Figure 1, a kind of gear pump, it comprises bearing means 1, blocking device 2, roll rod 3, rear pump cover 4, fixing device 5, gear 6, the pump housing 7, front pump cover 8, screw 9, compacting part 10, seal ring 11, main shaft 12 and driven shaft 13, the described pump housing 7 is between rear pump cover 4 and front pump cover 8, the described pump housing 7, rear pump cover 4 is fixedly connected with by screw 9 with front pump cover 8, front pump cover 8 is run through in described main shaft 12 one end, the pump housing 7 and rear pump cover 4, main shaft 12 one end described in blocking device 2 is set in described rear pump cover 4, the rod 3 that rolls is set between described main shaft 12 one end and rear pump cover 4, described gear 6 arranges in the pump housing 7, between described main shaft 12 and described gear 6, fixing device 5 is set, described compacting part 10 arranges on front pump cover 8, described compacting part 10 is pressed on main shaft 12 by seal ring 11.
The described pump housing 7 also arranges driven shaft 13.
Prevent pressure oil to be leaked to pump between the pump housing and pump cover, and reduce the pulling force of housing screw, the end face of pump housing both sides has oil sealing compensating groove, make the pressure oil between the infiltration pump housing and pump cover introduce oil sucting cavity.Aperture on pump cover and driven shaft, the oil sucting cavity that pump also guided to by the pressure oil being leaked to bearing end by its effect goes, and prevents fluid excessive, also have lubricated needle bearing simultaneously.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. a gear pump, it is characterized in that it comprises bearing means, blocking device, roll rod, rear pump cover, fixing device, gear, the pump housing, front pump cover, screw, compacting part, seal ring, main shaft and driven shaft, the described pump housing is between rear pump cover and front pump cover, the described pump housing, rear pump cover is fixedly connected with by screw with front pump cover, front pump cover is run through in described main shaft one end, the pump housing and rear pump cover, main shaft one end described in blocking device is set in described rear pump cover, between described main shaft one end and rear pump cover, the rod that rolls is set, described gear arranges in the pump housing, between described main shaft and described gear, fixing device is set.
2. gear pump according to claim 1, is characterized in that: described compacting part is arranged on front pump cover.
3. gear pump according to claim 1, is characterized in that: described compacting part is pressed on main shaft by seal ring.
4. gear pump according to claim 1, is characterized in that: the described pump housing also arranges driven shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410640261.XA CN104533783A (en) | 2014-11-14 | 2014-11-14 | A gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410640261.XA CN104533783A (en) | 2014-11-14 | 2014-11-14 | A gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104533783A true CN104533783A (en) | 2015-04-22 |
Family
ID=52849372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410640261.XA Pending CN104533783A (en) | 2014-11-14 | 2014-11-14 | A gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533783A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3395646A (en) * | 1965-02-16 | 1968-08-06 | Mecanique Appliquee S I G M A | Hydraulic gear pumps and motors |
| US3473474A (en) * | 1966-12-23 | 1969-10-21 | Maag Zahnraeder & Maschinen Ag | Sealing means for high pressure gear pump |
| US4337018A (en) * | 1980-01-29 | 1982-06-29 | Commercial Shearing, Inc. | Rotary impeller pump or motor with counterbalancing chamber in thrust plate bearing counterbore |
| CN200968281Y (en) * | 2006-11-16 | 2007-10-31 | 吴涛慧 | Gear ring pump |
| CN202510359U (en) * | 2011-11-08 | 2012-10-31 | 上海卓达机电设备有限公司 | Hydraulic combined gear pump |
| CN204419562U (en) * | 2014-11-14 | 2015-06-24 | 常州市龙润机械有限公司 | A kind of gear pump |
-
2014
- 2014-11-14 CN CN201410640261.XA patent/CN104533783A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3395646A (en) * | 1965-02-16 | 1968-08-06 | Mecanique Appliquee S I G M A | Hydraulic gear pumps and motors |
| US3473474A (en) * | 1966-12-23 | 1969-10-21 | Maag Zahnraeder & Maschinen Ag | Sealing means for high pressure gear pump |
| US4337018A (en) * | 1980-01-29 | 1982-06-29 | Commercial Shearing, Inc. | Rotary impeller pump or motor with counterbalancing chamber in thrust plate bearing counterbore |
| CN200968281Y (en) * | 2006-11-16 | 2007-10-31 | 吴涛慧 | Gear ring pump |
| CN202510359U (en) * | 2011-11-08 | 2012-10-31 | 上海卓达机电设备有限公司 | Hydraulic combined gear pump |
| CN204419562U (en) * | 2014-11-14 | 2015-06-24 | 常州市龙润机械有限公司 | A kind of gear pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150422 |
|
| WD01 | Invention patent application deemed withdrawn after publication |