CN207470430U - A kind of fork truck dedicated gear pump - Google Patents
A kind of fork truck dedicated gear pump Download PDFInfo
- Publication number
- CN207470430U CN207470430U CN201721480692.XU CN201721480692U CN207470430U CN 207470430 U CN207470430 U CN 207470430U CN 201721480692 U CN201721480692 U CN 201721480692U CN 207470430 U CN207470430 U CN 207470430U
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- China
- Prior art keywords
- pump
- gear
- pump housing
- driving shaft
- driven
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- 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.)
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- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model discloses a kind of fork truck dedicated gear pump, including the pump housing, it is characterised in that：The pump housing includes front pump cover, rear pump cover, driving shaft, driven shaft, driving gear and driven gear, the junction of the rear pump cover and the pump housing is equipped with fillister head screw, the oil that is internally provided with of the rear pump cover blocks up, the driving shaft and driving gear cooperation, the driven shaft and driven gear cooperation, the extension of the driving shaft is equipped with sheath, the contact position of the driving shaft and front pump cover is equipped with lip-type packing and circlip, bushing is equipped on the driving shaft and driven shaft, the driving shaft is equipped with thrust plate with the pump housing and the gap location of driven shaft and the pump housing, inner seal ring and sealing blend stop.The utility model is simple in structure, it is easy to use, convenient for safeguard, have good sealing effect, have preferable axial clearance compensation effect, improve service life.
Description
Technical field
The utility model is related to gear pump technical fields more particularly to a kind of fork truck dedicated gear to pump.
Background technology
Gear pump be by the swept volume gone between pumping cylinder and meshing gear variation and it is mobile come convey liquid or
It is allowed to the drum pump being pressurized.Existing gear pump is generally made of the space of two closings two gears, the pump housing and front and rear covers, when
When gear rotates, the volume for the side that is out of gear is changed from small to big, and is formed vacuum, is drawn liquid into, the space of gear engagement side is by big
Become smaller, so as to which liquid is squeezed into pipeline.In view of the structure design of fork truck needs, lubricating oil pump installation space is limited, same to opportunity
Oil stream amount is big, rotating speed is not high, so common rotor pump cannot meet the double requirements that flow is big, small, can only take low speed
Gear pump, but present gear pump structure is more complicated, is not easy to install, and is not easy to fasten, and gear does not have preferable axis
To rocker compensating gear.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of fork truck dedicated gear pump to solve the above problems.
To achieve the above object, the utility model provides following technical solution：
A kind of fork truck dedicated gear pump, including the pump housing, it is characterised in that：The pump housing includes front pump cover, rear pump cover, active
The junction of axis, driven shaft, driving gear and driven gear, the rear pump cover and the pump housing is equipped with fillister head screw, is pumped after described
The oil that is internally provided with of lid blocks up, the driving shaft and driving gear cooperation, the driven shaft and driven gear cooperation, the driving shaft
Extension be equipped with sheath, the contact position of the driving shaft and front pump cover is equipped with lip-type packing and circlip, the master
Be equipped with bushing on moving axis and driven shaft, the driving shaft and the pump housing and the gap location of driven shaft and the pump housing be equipped with thrust plate,
Inner seal ring and sealing blend stop, the front pump cover is equipped with exterior seal ring with the pump housing and the contact position of rear pump cover and the pump housing, described
Driving gear is formed with gear cavity, the benefit being provided symmetrically in the pump housing with the pump housing and the gap location of driven gear and the pump housing
Chamber is repaid, compensation channel is equipped between the compensated cavity and gear cavity, safety valve, the safety valve packet are equipped in the compensation channel
Include valve body, spool and spring.
As preferred：The pump housing is made of high-strength abrasion-proof cast iron.
As preferred：The pump housing is equipped with nameplate, and the nameplate is connect by rivet with the pump housing.
The beneficial effects of the utility model are：
The utility model is simple in structure, it is easy to use, convenient for safeguard, by being provided with thrust plate, inner seal ring, interior sealing
Circle, exterior seal ring, lip-type packing and circlip so that gear pump has good sealing effect, and compensated cavity and compensation
The setting of channel so that since leakage caused by fit clearance is addressed between the pump housing and driving gear and driven gear, carry
The high efficiency of transmission of gear pump, since the liquid flowed out from gear cavity has very high pressure, is provided with safety valve so that ooze
The flow and pressure energy of leakage body access guarantee, further ensure the stationarity of liquid transmission, improve tooth to a certain degree
Wheel pump service life.
Description of the drawings
Using attached drawing, the utility model is described in further detail, but the embodiment in attached drawing is not formed to the utility model
Any restrictions, without creative efforts, can also be according to following attached for those of ordinary skill in the art
Figure obtains other attached drawings：
Fig. 1 is the structure diagram one of the utility model；
Fig. 2 is the structure diagram two of the utility model；
Fig. 3 is the enlarged drawing at A in Fig. 2.
In figure：1st, the pump housing；2nd, front pump cover；3rd, rear pump cover；4th, fillister head screw；5th, thrust plate；6th, inner seal ring；7th, it seals
Blend stop；8th, exterior seal ring；9th, driven shaft；10th, driving gear；11st, driven gear；12nd, bushing；13rd, driving shaft；14th, sheath；
15th, lip-type packing；16th, circlip；17th, oil is stifled；18th, nameplate；19th, rivet；20th, compensated cavity；21st, channel is compensated；22nd, pacify
Full valve；23rd, valve body；24th, spool；25th, spring；26th, gear cavity.
Specific embodiment
In order to which those skilled in the art is made to more fully understand the technical solution of the utility model, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model, it should be noted that in the absence of conflict, the application's
Feature in embodiment and embodiment can be combined with each other.
As shown in Figures 1 to 3, a kind of fork truck dedicated gear pump, including the pump housing 1, the pump housing 1 includes front pump cover 2, rear pump cover
3rd, driving shaft 13, driven shaft 9, driving gear 10 and driven gear 11, the junction of the rear pump cover 3 and the pump housing 1 are equipped with cylinder
Head screw 4, the rear pump cover 3 are internally provided with oil stifled 17, and the driving shaft 13 and driving gear 10 coordinate, the driven shaft 9
Coordinate with driven gear 11, the extension of the driving shaft 13 is equipped with sheath 14, the contact with front pump cover 2 of driving shaft 13
Place is equipped with lip-type packing 15 and circlip 16, and bushing 12, the driving shaft are equipped on the driving shaft 13 and driven shaft 9
13 are equipped with thrust plate 5, inner seal ring 6 and sealing blend stop 7, the front pump with the gap location of the pump housing 1 and driven shaft 9 and the pump housing 1
The contact position of lid 2 and the pump housing 1 and rear pump cover 3 and the pump housing 1 is equipped with exterior seal ring 8, the driving gear 10 and the pump housing 1 and driven
Gear 11 and the gap location of the pump housing 1 are formed with gear cavity 26, the compensated cavity 20 being provided symmetrically in the pump housing 1, the benefit
It repays and compensation channel 21 is equipped between chamber 20 and gear cavity 26, safety valve 22, the safety valve 22 are equipped in the compensation channel 21
Including valve body 23, spool 24 and spring 25.The pump housing 1 is made of high-strength abrasion-proof cast iron.There is nameplate on the pump housing 1
18, the nameplate 18 is connect by rivet 19 with the pump housing 1.
The utility model is simple in structure, easy to use, convenient for safeguarding, by being provided with thrust plate 5, inner seal ring 6, interior close
Seal 6, exterior seal ring 8, lip-type packing 15 and circlip 16 so that gear pump has good sealing effect, and compensates
The setting of chamber 20 and compensation channel 21 so that since fit clearance causes between the pump housing 1 and driving gear 10 and driven gear 11
Leakage be addressed, improve the efficiency of transmission of gear pump, since the liquid that is flowed out from gear cavity 26 has very high pressure,
It is provided with safety valve 22 so that the flow and pressure energy of leak fluid access guarantee, further ensure the flat of liquid transmission
Stability improves gear pump service life to a certain degree.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, several improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (3)
1. a kind of fork truck dedicated gear pump, including the pump housing (1), it is characterised in that：The pump housing (1) includes front pump cover (2), rear pump
Cover (3), driving shaft (13), driven shaft (9), driving gear (10) and driven gear (11), the rear pump cover (3) and the pump housing (1)
Junction be equipped with fillister head screw (4), the rear pump cover (3) to be internally provided with oil stifled (17), the driving shaft (13) and main
Moving gear (10) coordinates, and the driven shaft (9) and driven gear (11) cooperation, the extension of the driving shaft (13) are equipped with shield
It covers (14), the contact position of the driving shaft (13) and front pump cover (2) is equipped with lip-type packing (15) and circlip (16), described
Bushing (12), the driving shaft (13) and the pump housing (1) and driven shaft (9) and pump are equipped on driving shaft (13) and driven shaft (9)
The gap location of body (1) is equipped with thrust plate (5), inner seal ring (6) and sealing blend stop (7), the front pump cover (2) and the pump housing (1)
And the contact position of rear pump cover (3) and the pump housing (1) is equipped with exterior seal ring (8), the driving gear (10) and the pump housing (1) and driven
The gap location of gear (11) and the pump housing (1) is formed with gear cavity (26), the compensated cavity being provided symmetrically in the pump housing (1)
(20), compensation channel (21) is equipped between the compensated cavity (20) and gear cavity (26), peace is equipped in the compensation channel (21)
Full valve (22), the safety valve (22) include valve body (23), spool (24) and spring (25).
2. a kind of fork truck dedicated gear pump according to claim 1, it is characterised in that：The pump housing (1) is using high intensity
Wear resistant cast iron is made.
3. a kind of fork truck dedicated gear pump according to claim 1, it is characterised in that：There is nameplate on the pump housing (1)
(18), the nameplate (18) is connect by rivet (19) with the pump housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721480692.XU CN207470430U (en) | 2017-11-01 | 2017-11-01 | A kind of fork truck dedicated gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721480692.XU CN207470430U (en) | 2017-11-01 | 2017-11-01 | A kind of fork truck dedicated gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470430U true CN207470430U (en) | 2018-06-08 |
Family
ID=62263513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721480692.XU Active CN207470430U (en) | 2017-11-01 | 2017-11-01 | A kind of fork truck dedicated gear pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470430U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117365943A (en) * | 2023-12-07 | 2024-01-09 | 四川航天世源科技有限公司 | High-pressure fuel pump with clearance compensation mechanism |
-
2017
- 2017-11-01 CN CN201721480692.XU patent/CN207470430U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117365943A (en) * | 2023-12-07 | 2024-01-09 | 四川航天世源科技有限公司 | High-pressure fuel pump with clearance compensation mechanism |
| CN117365943B (en) * | 2023-12-07 | 2024-02-23 | 四川航天世源科技有限公司 | High-pressure fuel pump with clearance compensation mechanism |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |