CN208718913U - A kind of high temperature resistant duplex pump - Google Patents
A kind of high temperature resistant duplex pump Download PDFInfo
- Publication number
- CN208718913U CN208718913U CN201821200372.9U CN201821200372U CN208718913U CN 208718913 U CN208718913 U CN 208718913U CN 201821200372 U CN201821200372 U CN 201821200372U CN 208718913 U CN208718913 U CN 208718913U
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- China
- Prior art keywords
- pump
- gear
- driving gear
- small pump
- small
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Abstract
The utility model relates to a kind of high temperature resistant duplex pumps, driving gear are mainly pumped by big pump housing, greatly, pump driven gear, small pump housing, small pump driving gear, small pump driven gear, end cap, driving key greatly forms；Motor drives the big pump driving gear of duplex pump wherein one end high speed rotation, big pump driving gear drives big pump driven gear rotation, high pressure oil is generated in Meshing Process of Spur Gear, the big pump driving gear other end and small pump driving gear pass through transmission key connection, and drive small pump driving gear high speed rotation; small pump driving gear drives small pump driven gear high speed rotation by engaging with small pump driven gear, engages by small pump gear and generates high pressure oil.
Description
Technical field
The utility model relates to a kind of high temperature resistant duplex pumps, the logging instrument applied to bulky grain coring under high temperature and high pressure environment
In device, hydraulic oil pump can keep stable pressure and biggish discharge capacity in hot environment, provide for hydraulic system biggish dynamic
Power.
Background technique
Existing duplex pump, external gear rotary pump are that mainly have driving gear, driven using a kind of wide gear pump
The composition such as gear, the pump housing, pump cover and safety valve, the sealing space that the pump housing, pump cover and gear are constituted are exactly the operating room of gear pump,
Gear pump working chamber, driving wheel rotate with motor and driven wheel are driven and then to rotate.When suction chamber engaging tooth gradually
When separating, suction chamber volume increases, pressure reduction, and just by the liquid suction pump in suction line, sucking liquid divides two-way in tooth
Discharge room is pushed to by gear in slot, after liquid enters discharge room, since the gear teeth of two gears constantly engage, just liquid is by crowded
Pressure and from discharge room enter in discharge pipe, driving gear and driven gear ceaselessly rotate, pump can continuously suck and
Liquid is discharged.Existing duplex pump is applied on logger, when carrying out heavy duty service, non-refractory and high pressure, in high temperature and pressure
There is oil leak to happen under environment, in order to solve this problem, and produces the utility model.
Summary of the invention
The purpose of this utility model is to provide a kind of duplex pumps, apply on logger, the operation in deep-well, and 135
DEG C or more hot environment under big pump pressure reach 3.5MPa, big pump discharge reaches 25.3L/ points, reaches heavy duty service requirement.
The utility model use following technical scheme: a kind of duplex pump, mainly by big pump housing, greatly pump driving gear,
Big pump driven gear, small pump housing, small pump driving gear, small pump driven gear, end cap, driving key composition;
Wherein, motor drives the big pump driving gear of duplex pump wherein one end high speed rotation, and the big driving gear that pumps drives big pump
Driven gear rotation, generates high pressure oil in Meshing Process of Spur Gear, and the big driving gear other end that pumps passes through with small pump driving gear
Transmission key connection, and small pump driving gear high speed rotation is driven, small pump driving gear is with small pump driven gear by engaging drive
Small pump driven gear high speed rotation is engaged by small pump gear and generates high pressure oil.
Big pump housing, small pump housing increase scuff-resistant coating, improve the gear pump service life.
Gear radial clearance is 0.04mm, and gear axial gap 0.09mm prevents hydraulic oil under hydraulic oil high temperature and pressure
Leakage.
The utility model has the advantages that:
1, increase scuff-resistant coating in big pump housing, small pump housing, improve the gear pump service life；
2, gear clearance is optimized, prevents hydraulic oil under high temperature and high pressure environment from revealing.
Detailed description of the invention
The small pump configuration cross-sectional view of Fig. 1 the utility model duplex pump；
The big pump configuration cross-sectional view of Fig. 2 the utility model duplex pump；
Fig. 3 the utility model duplex pump structure sectional view.
Specific embodiment
As shown in Figure 1, Figure 2, Figure 3 shows, duplex pump mainly by big pump housing 6, big pump driving gear 5, big pump driven gear 4,
Small pump housing 3, small pump driving gear 2, small pump driven gear 1, end cap, driving key 7 form;
Wherein, motor drives the big pump driving gear 5 of duplex pump wherein one end high speed rotation, and the big driving gear 5 that pumps drives greatly
It pumps driven gear 4 to rotate, high pressure oil is generated in Meshing Process of Spur Gear, it is big to pump 5 other end of driving gear and small pump driving gear 2
It is connected by driving key 7, and drives small 2 high speed rotation of pump driving gear, small pump driving gear 2 passes through with small pump driven gear 1
Engagement drives small 1 high speed rotation of pump driven gear, is engaged by small pump gear and generates high pressure oil.
Big pump housing 6, small pump housing 3 increase scuff-resistant coating, improve gear life.
Gear radial clearance is 0.04mm, and gear axial gap 0.09mm prevents hydraulic oil under hydraulic oil high temperature and pressure
Leakage.
The above is the preferred embodiment of the utility model and its technical principle used, for the technology of this field
It is any to be based on technical solutions of the utility model base without departing substantially from the spirit and scope of the utility model for personnel
Equivalent transformation, simple replacement on plinth etc. obviously change, and belong within scope of protection of the utility model.
Claims (3)
1. a kind of duplex pump, it is characterised in that: mainly pump driving gear by big pump housing, greatly, pump driven gear, small pump chamber greatly
Body, small pump driving gear, small pump driven gear, end cap, driving key composition;
Wherein, motor drives the big pump driving gear of duplex pump wherein one end high speed rotation, and big pump driving gear drive pumps greatly driven
Gear rotation, generates high pressure oil in Meshing Process of Spur Gear, and the big pump driving gear other end and small pump driving gear pass through transmission
Key connection, and small pump driving gear high speed rotation is driven, small pump driving gear drives small pump by engaging with small pump driven gear
Driven gear high speed rotation is engaged by small pump gear and generates high pressure oil.
2. duplex pump according to claim 1, it is characterised in that: the big pump housing, small pump housing increase scuff-resistant coating,
Improve the gear pump service life.
3. duplex pump according to claim 1, it is characterised in that: the gear radial clearance is 0.04mm, and gear is axial
Gap 0.09mm greatly reduces hydraulic oil under hydraulic oil high temperature and reveals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200372.9U CN208718913U (en) | 2018-07-27 | 2018-07-27 | A kind of high temperature resistant duplex pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821200372.9U CN208718913U (en) | 2018-07-27 | 2018-07-27 | A kind of high temperature resistant duplex pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208718913U true CN208718913U (en) | 2019-04-09 |
Family
ID=65975218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821200372.9U Active CN208718913U (en) | 2018-07-27 | 2018-07-27 | A kind of high temperature resistant duplex pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208718913U (en) |
-
2018
- 2018-07-27 CN CN201821200372.9U patent/CN208718913U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |