CN201568241U - Open circuit plunger pump - Google Patents
Open circuit plunger pump Download PDFInfo
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- CN201568241U CN201568241U CN2009202624875U CN200920262487U CN201568241U CN 201568241 U CN201568241 U CN 201568241U CN 2009202624875 U CN2009202624875 U CN 2009202624875U CN 200920262487 U CN200920262487 U CN 200920262487U CN 201568241 U CN201568241 U CN 201568241U
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- plunger
- pump
- cylinder body
- bearing
- main shaft
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Abstract
The utility model discloses an open circuit plunger pump. A pump body is integrated with a back cover; the center of the pump body is provided with a rotating spindle; a cylinder is sleeved on the spindle; the spindle drives the cylinder to rotate; the cylinder drives the plunger to rotate; the plunger is arranged in a plunger hole; the back end of the cylinder is matched and sealed with an oil distributing tray; the oil distributing tray is provided with a liquid distributing pressure pump having a sealing function; a plunger slider supports the surface of a return tray which is supported by a swaying part; and the swaying part is provided with two crescent moon bearings so the swaying part can freely swing. The swinging deflection of the swinging part can be regulated by a control valve and the maximum and the minimum swinging deflections can be regulated by a limiting rod. The utility model has a rising speed of 1500 r/min. Compared with the common product, the noise is decreased by 10 dB, the average saved energy is 40% to 50% and the highest work pressure for continuously running is 48Mpa.
Description
Technical field
The utility model discloses a kind of open circuit plunger pump, belongs to plunger pump class manufacturing technology field.
Background technique
At present oil hydraulic pump, oil hydraulic motor, the hydrovalve of China have Hen how still from external import, core component is provided with heavy technology barriers especially, compatriots are difficult to have a finger in every pie.Though domestic have at present producer such as power source hydraulic pressure, magnificent moral hydraulic pressure, planning to manufacture experimently the related fluid die pressing product, its quality level with abroad compare, have a long way to go, quality life-span is short, the rate of fault height.
Along with the intensification in hydraulic pressure market, plunger pump manufacturing enterprise continues to bring out, different manufacturers, and the plunger pump product of model is more and more.Because there is the maintenance requirement height in hydraulic transmission itself, the characteristics that break down and be difficult for finding out are had relatively high expectations for plant maintenance and after sales service, when equipment breaks down, if can not get repairing timely rapidly, cause damp production, will bring enormous economic loss to the user.Therefore the user must take all factors into consideration aspect factors such as pump performance, reliability, energy-conserving and environment-protective when selecting oil hydraulic pump, reasonably selects oil hydraulic pump.
Summary of the invention
At the deficiency of existing plunger pump technique, the utility model provides the open circuit plunger pump of the operation under a kind of compact structure, long service life, the particularly suitable worst cold case, can realize higher operational efficiency.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of open circuit plunger pump, comprise the pump housing, bonnet, main shaft, cylinder body, plunger, oil distribution casing, the backhaul dish, wave, ball pivot, crescent moon bearing and control valve, this pump housing and bonnet are combined as a whole, pump housing center is provided with rotating spindle, this main shaft one end is exposed to outside the pump housing and by a big bearing and a little bearing and supports, big bearing is fixed in the pump housing, little bearing fixing is in bonnet, cylinder body is placed on the main shaft, main shaft drives the cylinder body rotation, and the while cylinder body also drives plunger and rotates together, and plunger is arranged in the plunger hole, the ear end face of cylinder body cooperates with oil distribution casing and seals, the oil distribution casing bonnet of dosing press pump again cooperates equally also Packed effect, and plunger piston slippery boots is supported the backhaul panel surface, and the backhaul dish is by waving supporting, two crescent moon bearing supportings have been waved, wave for this reason and can freely shake, the amplitude of oscillation size of waving is regulated by control valve, and the minimax amplitude of oscillation is regulated by waving position-limited lever, ball pivot links to each other by waving with the crescent moon bearing, and the pump housing is provided with the back shaft plug.
Further, the described main shaft hydraulic pressure oil mass 10～140cm that discharges that whenever circles
3
Further, described ball pivot and wave and the surface, cooperation place of bearing utilizes vitrification technology to be provided with nickel 62 sprayfused coatings.
Further, described nine plungers form an angle with cylinder body along with waving swing, and cylinder body is coaxial with main shaft, thereby changes the volume size in nine plunger holes of cylinder body.
Further, described oil hydraulic pump allows the maximum service pressure 48MPa of use in continuous working order.
Pressure of the present utility model and discharge capacity are as follows:
(1) rated pressure: oil hydraulic pump allows the maximum service pressure 48MPa of use in continuous working order.
(2) Theoretical flowing capacity: the main shaft of the oil hydraulic pump hydraulic pressure oil mass 10～140cm that discharges that whenever circles
3
(3) theoretical delivery: the liquid volume that can discharge in theory in the unit time of oil hydraulic pump.It equals the product of discharge capacity and rotating speed.
(4) unloaded discharge capacity: the ratio of rotating speed when flow is with zero load when unloaded is 95%～110% of a Theoretical flowing capacity.
(5) capacity rating: during rated pressure, the ratio of flow and rotating speed.
(6) efficient: the efficiency eta of oil hydraulic pump is an output power and the ratio of input power.The ratio of oil hydraulic pump actual flow and theoretical delivery is called volumetric efficiency η v, and oil hydraulic pump all exists volumetric loss and machinery to lose two kinds of consumption in the energy transition process, so total efficiency is the product of volumetric efficiency and mechanical efficiency, i.e. and η=η v η m.
(7) manufacturing process: oil hydraulic pump ball pivot and wave and fitting surface such as bearing all adopts new material (nickel 62 sprayings) to add the new process that vitrification is handled.
Performance specification of the present utility model is as follows
1, pressure: the normal operating pressure of hydraulic system may be selected to be the 85%-95% of pump rated pressure in fixed equipment, and vehicle may be selected to be the 75%-85% of pump rated pressure with pump, to guarantee enough life-spans of pump;
2, flow: the flow of pump is relevant with operating mode, the peak rate of flow the when flow of the pump of selection must be greater than hydraulic work system;
3, rotating speed: rotation speed relation life-span, durability, air pocket, noise of pump etc.;
4, efficient: the efficiency value of pump is that the quality of pump embodies, and in general, should make the running parameter commonly used of main frame be in the efficient region parameter area of pump efficiency curve;
5, variable format: select different variable displacement pumps according to operating mode, from energy-conservation angle, constant pressure variable displacement pump is the basic model pump, avoids adopting metering pump as far as possible;
6, noise and vibration: the noise and vibration problem has become the key factor that influences the hydraulic system environmental-protecting performance, and noise and vibration makes the environmental protection situation of device context obviously affect adversely; On the other hand, the noise and vibration of hydraulic system directly has influence on the operating life of the leaking performance and the equipment unit of hydraulic equipment;
7, suction capacity: need pump to have certain suction capacity during use;
8, working life: in so-called working life, typically refer to interior pump of overhaul life in the rated condition summation of following running time;
9, size and weight: contrast the dimension and weight of various pumps, can use " specific power ", there is different requirements visual different application to " specific power ".
Description of drawings
Fig. 1 is the utility model sectional view explosive view;
Fig. 2 is the utility model schematic representation;
Fig. 3 is the utility model erection drawing.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
Embodiment: structure such as Fig. 1, Fig. 2 and shown in Figure 3, a kind of open circuit plunger pump, among the figure component names be, 1, main shaft, 2, housing, 3, wave 4, the backhaul dish, 5, plunger, 6, cylinder body, 7, oil distribution casing, 8, little bearing, 9, bonnet, 10, jump ring, 11, capping, 12, big bearing, 13, ball pivot, 14, position-limited lever, 15, push rod, 16, control valve, 17, jump ring, 18, the crescent moon bearing.
A kind of open circuit plunger pump, the pump housing (housing 2) is combined as a whole with bonnet 9, the pump housing (housing 2) center is provided with rotating spindle 1, these main shaft 1 one ends are exposed to outside the pump housing and by a big bearing 12 and a little bearing 8 and support, big bearing 12 is fixed in the pump housing, little bearing 8 is fixed in bonnet, cylinder body 6 is placed on the main shaft 1, main shaft drives the cylinder body rotation, and the while cylinder body also drives plunger 5 and rotates together, and plunger is arranged in the plunger hole, the ear end face of cylinder body cooperates with oil distribution casing 7 and seals, the oil distribution casing bonnet of dosing press pump again cooperates equally also Packed effect, and plunger piston slippery boots is supported the backhaul panel surface, and the backhaul dish is by waving 3 supportings, 18 supportings of two crescent moon bearings have been waved, wave for this reason and can freely shake, the amplitude of oscillation size of waving is regulated by control valve 16, and the minimax amplitude of oscillation is regulated by waving position-limited lever.Ball pivot links to each other by waving with the crescent moon bearing, and the pump housing is provided with cleaning, relief opening is blocked with plug.The main shaft hydraulic pressure oil mass 10～140cm that discharges that whenever circles
3New procesies such as vitrification and nickel 62 sprayings are adopted on the surface, cooperation place of cylinder body sphere and oil distribution casing.Described nine plungers form an angle with cylinder body along with waving swing, and cylinder body is coaxial with main shaft, thereby change the volume size in nine plunger holes of cylinder body.Oil hydraulic pump allows the maximum service pressure 48MPa of use in continuous working order.
Main innovate point of the present utility model:
1, breaks through the raising speed problem of the big specification pump of M11VSO series ultrahigh pressure first, rise to 1500r/min from 1000r/min;
2, compare noise with mill run and reduced 10dB;
3, reduce throttling and the spill losses that conventional hydraulic pressure system exists, reduced power consumpiton, on average can save energy 40%-50%;
4, on average can save energy 40%-50%, drive motor changes 4 utmost points into by 6 utmost points simultaneously.
The emphasis that the invention is claimed:
(1) rated pressure: oil hydraulic pump allows the maximum service pressure 48MPa of use in continuous working order.
(2) Theoretical flowing capacity: the main shaft of the oil hydraulic pump hydraulic pressure oil mass 10～140cm3 that discharges that whenever circles.
(3) theoretical delivery: the liquid volume that can discharge in theory in the unit time of oil hydraulic pump.It equals the product of discharge capacity and rotating speed.
(4) unloaded discharge capacity: the ratio of rotating speed when flow is with zero load when unloaded is 95%～110% of a Theoretical flowing capacity.
(5) capacity rating: during rated pressure, the ratio of flow and rotating speed.
(6) efficient: the efficiency eta of oil hydraulic pump is an output power and the ratio of input power.The ratio of oil hydraulic pump actual flow and theoretical delivery is called volumetric efficiency η v, and oil hydraulic pump all exists volumetric loss and machinery to lose two kinds of consumption in the energy transition process, so total efficiency is the product of volumetric efficiency and mechanical efficiency, i.e. and η=η v η m.
(7) manufacturing process: oil hydraulic pump ball pivot and wave and fitting surface such as bearing all adopts new material (nickel 62 sprayings) to add the new process that vitrification is handled.
The beneficial effect of innovation and creation:
After the research and development of this project are produced; promote this product working life greatly; reduce heating; reduce friction; the particularly operation under worst cold case; more can adapt to, because the principle of expanding with heat and contract with cold, at cold low temp area; allow the user under the cold starting situation; can often oil hydraulic pump be broken, former because oil hydraulic pump is generally speaking for ultraprecise cooperates the workpiece composition, when restarting after the cold shutdown in sky; since inner workpiece be affected (expanding with heat and contract with cold) in addition the hydraulic pressure oil product solidify; situations such as fuel feeding is untimely cause and very easily break oil hydraulic pump, and the phenomenon of its appearance is the cylinder body scuffing of cylinder bore; the ball strand; plunger; wave impaired serious.So, oil hydraulic pump just can't proper functioning, for equipment provides driving source.Hereby, in order to solve domestic this existence technical barrier for a long time, we MCS engineers and technicians go through thousands of experiment trial-production, successfully adopt new material (nickel spraying) to add the vitrification new process, impel to exist the old difficulty of decades to be overcome.Can optimize the upgrading of the oil hydraulic pump industry industrial structure, promoting its reasonable reaching under the life-span prerequisite, reform and innovate, courageously adopt the vitrification new technology, the product workpiece carry out external and in superhigh temperature handle under, impel its good fusion, allow it produce heatproof preferably, heat-resisting, wear-resisting function.
It can realize higher operational efficiency, multiple variable format for choosing, guarantees best control precision, service life is longer, energy consumption minimizes, environmental protection and energy saving, promotes the quality of product greatly, reduces the operating noise and vibration of hydraulic system widely.Its birth will provide high-quality heart dynamical element for China's hydraulic equipment industry, promote the ability level of China's industry, military equipment.
The above record only for utilizing the embodiment of this origination techniques content, anyly is familiar with modification, the variation that this skill person uses this creation to do to do, and all belongs to the claim of this creation opinion, and is not limited to those disclosed embodiments.
Claims (4)
1. open circuit plunger pump, it is characterized in that: comprise the pump housing, bonnet, main shaft, cylinder body, plunger, oil distribution casing, the backhaul dish, wave, ball pivot, crescent moon bearing and control valve, this pump housing and bonnet are combined as a whole, pump housing center is provided with rotating spindle, this main shaft one end is exposed to outside the pump housing and by a big bearing and a little bearing and supports, big bearing is fixed in the pump housing, little bearing fixing is in bonnet, cylinder body is placed on the main shaft, main shaft drives the cylinder body rotation, the while cylinder body also drives plunger and rotates together, plunger is arranged in the plunger hole, the ear end face of cylinder body cooperates with oil distribution casing and seals, the oil distribution casing bonnet of dosing press pump again cooperates equally also Packed effect, plunger piston slippery boots is supported the backhaul panel surface, the backhaul dish is by waving supporting, two crescent moon bearing supportings have been waved, wave for this reason and can freely shake, the amplitude of oscillation size of waving is regulated by control valve, the minimax amplitude of oscillation is regulated by waving position-limited lever, ball pivot links to each other by waving with the crescent moon bearing, and the pump housing is provided with cleaning, relief opening is blocked with plug.
2. a kind of open circuit plunger pump according to claim 1 is characterized in that: the described cylinder body hydraulic pressure oil mass 10～140cm that discharges that whenever circles
3
3. a kind of open circuit plunger pump according to claim 1 is characterized in that: described ball pivot and wave and the surface, cooperation place of bearing utilizes vitrification technology to be provided with nickel 62 sprayfused coatings.
4. a kind of open circuit plunger pump according to claim 1 is characterized in that: described nine plungers form an angle with cylinder body along with waving swing, and cylinder body is coaxial with main shaft, thereby change the volume size in nine plunger holes of cylinder body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202624875U CN201568241U (en) | 2009-11-05 | 2009-11-05 | Open circuit plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202624875U CN201568241U (en) | 2009-11-05 | 2009-11-05 | Open circuit plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568241U true CN201568241U (en) | 2010-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202624875U Expired - Fee Related CN201568241U (en) | 2009-11-05 | 2009-11-05 | Open circuit plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568241U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104533743A (en) * | 2014-12-30 | 2015-04-22 | 南京萨伯工业设计研究院有限公司 | Hydraulic pump bilateral pressure-bearing servo variable device and control method thereof |
| CN105745441A (en) * | 2013-10-08 | 2016-07-06 | 罗伯特·博世有限公司 | Swashplate machine |
| CN108443098A (en) * | 2018-03-23 | 2018-08-24 | 徐州重型机械有限公司 | A kind of open hydraulic pump motor secondary component |
-
2009
- 2009-11-05 CN CN2009202624875U patent/CN201568241U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105745441A (en) * | 2013-10-08 | 2016-07-06 | 罗伯特·博世有限公司 | Swashplate machine |
| CN104533743A (en) * | 2014-12-30 | 2015-04-22 | 南京萨伯工业设计研究院有限公司 | Hydraulic pump bilateral pressure-bearing servo variable device and control method thereof |
| CN108443098A (en) * | 2018-03-23 | 2018-08-24 | 徐州重型机械有限公司 | A kind of open hydraulic pump motor secondary component |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20111105 |