CN104675655A - Hydraulic pump - Google Patents
Hydraulic pump Download PDFInfo
- Publication number
- CN104675655A CN104675655A CN201510113685.5A CN201510113685A CN104675655A CN 104675655 A CN104675655 A CN 104675655A CN 201510113685 A CN201510113685 A CN 201510113685A CN 104675655 A CN104675655 A CN 104675655A
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- variable
- oil
- pump
- pull bar
- hydraulic pump
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Abstract
The invention discloses a hydraulic pump which comprises a pump body, a driving shaft, a variable head and a pull rod, wherein the driving shaft is horizontally arranged in the pump body; the pull rod is vertically arranged in the pump body; the driving shaft is connected with the pull rod in a driving way through the variable head; a ring flange and an oil seal are arranged on one side of the driving shaft; the oil seal is arranged in the ring flange; the ring flange and the pump body are fixedly connected; an oil distribution disc is arranged at the bottom of the pump body; a servo piston and a variable piston are sequentially connected to the lower part of the pull rod; the servo piston and the pull rod are fixedly connected; a variable body casing is arranged on the outer side of the variable piston; the variable body casing is communicated with the oil distribution disc; a plunger is connected to one end of the oil distribution disc. The hydraulic pump disclosed by the invention has the advantages of simple structure, high pressurizing efficiency, small size and high self-suction capacity.
Description
Technical field
The present invention relates to a kind of technical field of hydraulic elements, particularly relate to a kind of oil hydraulic pump.
Background technique
oil hydraulic pump is the dynamical element of hydraulic system, is by motor or motoring, from hydraulic oil container, sucks fluid, and mineralization pressure oil is discharged, and delivers to a kind of element of executive component.Oil hydraulic pump is divided into gear pump, plunger pump, vane pump and screw pump by structure, for hydraulic transmission provides a kind of hydraulic element of pressurized liquid, is the one of pump.Its function is the pressure energy mechanical energy of power engine (as motor and internal-combustion engine etc.) being converted to liquid.The factor in working life affecting oil hydraulic pump is a lot, except pump design itself, manufacture factor except and some and pump use the operation etc. in the selecting of related elements (as coupling, oil purifier etc.), trial run and run process also to have relation.The working principle of oil hydraulic pump is the change that motion brings pump chamber, thus compressed fluid makes fluid have pressure energy.Prerequisite condition is exactly that pump chamber has sealed volume to change.
The kind of conventional oil hydraulic pump: be divided into by whether flow is adjustable: variable displacement pump and metering pump.What output flow can regulate as required is called variable displacement pump, and what flow can not regulate is called metering pump.Be divided into by pump structure conventional in hydraulic system: gear pump, vane pump and plunger pump 3 kinds.Gear pump: small volume, structure is comparatively simple, and require not tight to the turbidity test of oil, price is more cheap; But pump shaft is by unbalanced force, and serious wear, leaks larger.Vane pump: be divided into double-acting vane pump and single acting vane pump.This pump duty is even, smooth running, noise are little, make pressure and volumetric efficiency is higher than gear pump, structural rate gear pump is complicated.
Plunger pump: volumetric efficiency is high, it is little to leak, can under high pressure work, large multiplex what high-power hydraulic system; But complex structure, material and requirement on machining accuracy is high, price, require high to the turbidity test of oil.Generally just use plunger pump when gear pump and vane pump can not meet the demands.
Existing oil hydraulic pump adopts single cylinder pressurization, and pumping efficiency is lower, complex structure, uses and installs inconvenience, self-priming weak effect.
Summary of the invention
It is simple that the technical problem to be solved in the present invention is to provide a kind of structure, and pumping efficiency is high, compact, the oil hydraulic pump that suction capacity is strong.
For solving the problem, the present invention adopts following technological scheme:
A kind of oil hydraulic pump, comprise the pump housing, transmission shaft, variable head and pull bar, described transmission shaft becomes to be horizontally set in the pump housing, described pull bar becomes vertically to be arranged in the pump housing, described transmission shaft is in transmission connection by variable head and pull bar, pull bar is kept to move up and down, described transmission shaft side is provided with flange plate and oil sealing, prevent hydraulic oil from revealing, described oil sealing is located in flange plate, described flange plate is fixedly connected with the pump housing, oil distribution casing is provided with bottom the described pump housing, servopiston and variable piston is connected with in turn below described pull bar, the oil pressure that can pressurize in variable shell, described servopiston is fixedly connected with pull bar, described variable piston arranged outside has variable body shell, institute's variable body shell is communicated with oil distribution casing, described oil distribution casing one end is connected with plunger.
As preferably, described variable piston and pull bar are in transmission connection, and keep variable piston to move.
As preferably, described pump housing side is provided with dial, effectively measures the pressure of hydraulic oil in the pump housing.
As preferably, described dial is communicated with variable body shell, keeps the precision measured.
As preferably, described plunger and variable head are in transmission connection, during work, and can oil pressure in pressure plunger.
It is simple that this technological scheme has structure, and pumping efficiency is high, compact, the feature that suction capacity is strong.
The invention has the beneficial effects as follows: the transmission shaft of setting is in transmission connection by variable head and pull bar, pull bar is kept to move up and down, servopiston and variable piston, the oil pressure that can pressurize in variable shell, states plunger and variable head is in transmission connection, during work, can oil pressure in pressure plunger, make hydraulic oil can through dual pressurization, efficiency be high, and suction capacity is strong.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural drawing of a kind of oil hydraulic pump of the present invention.
Embodiment
Consult shown in Fig. 1, a kind of oil hydraulic pump, comprise the pump housing 1, transmission shaft 2, variable head 3 and pull bar 4, described transmission shaft 2 one-tenth is horizontally set in the pump housing 1, described 4 one-tenth, pull bar is vertically arranged in the pump housing 1, described transmission shaft 2 is in transmission connection by variable head 3 and pull bar 4, in use, hydraulic oil is inputted from oil distribution casing 7, transmission shaft 2 drives variable head 3 to rotate, servopiston 8 and variable piston 9 is made to move up and down pressurization fluid, backflow enters into oil distribution casing 7, again pressurize through plunger 11, form high pressure oil, send from oil hydraulic pump, described transmission shaft 2 side is provided with flange plate 5 and oil sealing 6, described oil sealing 6 is located in flange plate 5, described flange plate 5 is fixedly connected with the pump housing 1, oil distribution casing 7 is provided with bottom the described pump housing 1, servopiston 8 and variable piston 9 is connected with in turn below described pull bar 4, described servopiston 8 is fixedly connected with pull bar 4, described variable piston 9 arranged outside has variable body shell 10, institute's variable body shell 10 is communicated with oil distribution casing 7, described oil distribution casing 7 one end is connected with plunger 11.
Described variable piston 9 is in transmission connection with pull bar 4.
The described pump housing 1 side is provided with dial 12.
Described dial 12 is communicated with variable body shell 10.
Described plunger 11 is in transmission connection with variable head 3.
In use, inputted by hydraulic oil from oil distribution casing 7, transmission shaft 2 drives variable head 3 to rotate, make servopiston 8 and variable piston 9 move up and down pressurization fluid, backflow enters into oil distribution casing 7, again pressurizes through plunger 11, form high pressure oil, send from oil hydraulic pump.
The invention has the beneficial effects as follows: the transmission shaft of setting is in transmission connection by variable head and pull bar, pull bar is kept to move up and down, servopiston and variable piston, the oil pressure that can pressurize in variable shell, states plunger and variable head is in transmission connection, during work, can oil pressure in pressure plunger, make hydraulic oil can through dual pressurization, efficiency be high, and suction capacity is strong.
The above; be only the specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; any change of expecting without creative work or replacement; all should be encompassed within protection scope of the present invention; therefore, the protection domain that protection scope of the present invention should limit with claims is as the criterion.
Claims (5)
1. an oil hydraulic pump, it is characterized in that: comprise the pump housing, transmission shaft, variable head and pull bar, described transmission shaft becomes to be horizontally set in the pump housing, described pull bar becomes vertically to be arranged in the pump housing, described transmission shaft is in transmission connection by variable head and pull bar, described transmission shaft side is provided with flange plate and oil sealing, described oil sealing is located in flange plate, described flange plate is fixedly connected with the pump housing, oil distribution casing is provided with bottom the described pump housing, servopiston and variable piston is connected with in turn below described pull bar, described servopiston is fixedly connected with pull bar, described variable piston arranged outside has variable body shell, institute's variable body shell is communicated with oil distribution casing, described oil distribution casing one end is connected with plunger.
2. oil hydraulic pump according to claim 1, is characterized in that: described variable piston and pull bar are in transmission connection.
3. oil hydraulic pump according to claim 2, is characterized in that: described pump housing side is provided with dial.
4. oil hydraulic pump according to claim 3, is characterized in that: described dial is communicated with variable body shell.
5. oil hydraulic pump according to claim 4, is characterized in that: described plunger and variable head are in transmission connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510113685.5A CN104675655A (en) | 2015-03-16 | 2015-03-16 | Hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510113685.5A CN104675655A (en) | 2015-03-16 | 2015-03-16 | Hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104675655A true CN104675655A (en) | 2015-06-03 |
Family
ID=53311127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510113685.5A Pending CN104675655A (en) | 2015-03-16 | 2015-03-16 | Hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104675655A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042311A (en) * | 2015-06-19 | 2015-11-11 | 袁川来 | Variable control system of oil pump |
-
2015
- 2015-03-16 CN CN201510113685.5A patent/CN104675655A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105042311A (en) * | 2015-06-19 | 2015-11-11 | 袁川来 | Variable control system of oil 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: 20150603 |
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| WD01 | Invention patent application deemed withdrawn after publication |