CN204419562U - A kind of gear pump - Google Patents
A kind of gear pump Download PDFInfo
- Publication number
- CN204419562U CN204419562U CN201420677372.3U CN201420677372U CN204419562U CN 204419562 U CN204419562 U CN 204419562U CN 201420677372 U CN201420677372 U CN 201420677372U CN 204419562 U CN204419562 U CN 204419562U
- 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.)
- 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 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, in described rear pump cover, blocking device is set, between described main shaft one end and rear pump cover, the rod that rolls is set, described gear is arranged in the pump housing, between described main shaft and described gear, fixing device is set, described compacting part arranges on front pump cover, described compacting part is pressed on main shaft by seal ring.A kind of gear pump of the present utility model, has transmission effective, prevents pressure oil to be leaked to pump between the pump housing and pump cover, and reduces the pulling force of housing screw.
Description
Technical field
The utility model relates to technical field of mechanical transmission, and 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 gear pump that the utility model provides transmission effective.
To achieve these goals, the utility model 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, in described rear pump cover, blocking device is set, between described main shaft one end and rear pump cover, the rod that rolls is set, described gear is arranged 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 an embodiment of the present utility model, the described pump housing also arranges driven shaft.
Compared with prior art, the beneficial effects of the utility model are:
A kind of gear pump of the present utility model, 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 utility model is described in detail below in conjunction with the drawings and specific embodiments;
Fig. 1 is the gear pump structure schematic diagram according to the utility model embodiment.
Embodiment
The technological means realized for making the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with embodiment, setting forth the utility model 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, in described rear pump cover 4, blocking device 2 is set, the rod 3 that rolls is set between described main shaft 12 one end and rear pump cover 4, described gear 6 is arranged 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, in described rear pump cover, blocking device is set, between described main shaft one end and rear pump cover, the rod that rolls is set, described gear is arranged 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 |
|---|---|---|---|
| CN201420677372.3U CN204419562U (en) | 2014-11-14 | 2014-11-14 | A kind of gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420677372.3U CN204419562U (en) | 2014-11-14 | 2014-11-14 | A kind of gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419562U true CN204419562U (en) | 2015-06-24 |
Family
ID=53469940
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420677372.3U Expired - Fee Related CN204419562U (en) | 2014-11-14 | 2014-11-14 | A kind of gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533783A (en) * | 2014-11-14 | 2015-04-22 | 常州市龙润机械有限公司 | A gear pump |
-
2014
- 2014-11-14 CN CN201420677372.3U patent/CN204419562U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533783A (en) * | 2014-11-14 | 2015-04-22 | 常州市龙润机械有限公司 | A gear pump |
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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: 20150624 Termination date: 20151114 |
|
| EXPY | Termination of patent right or utility model |