CN107401501A - Hydraulic pump, hydraulic system and engineering truck - Google Patents
Hydraulic pump, hydraulic system and engineering truck Download PDFInfo
- Publication number
- CN107401501A CN107401501A CN201710885392.8A CN201710885392A CN107401501A CN 107401501 A CN107401501 A CN 107401501A CN 201710885392 A CN201710885392 A CN 201710885392A CN 107401501 A CN107401501 A CN 107401501A
- Authority
- CN
- China
- Prior art keywords
- hydraulic
- hydraulic pump
- pump
- housing
- end cap
- 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.)
- Pending
Links
- 239000011148 porous material Substances 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims description 4
- 239000004677 Nylon Substances 0.000 claims description 3
- 229920001778 nylon Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 15
- 239000012535 impurity Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000002828 fuel tank Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/001—Servomotor systems with fluidic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention provides a kind of hydraulic pump, hydraulic system and engineering truck, belongs to Hydraulic Elements field.The hydraulic pump mainly includes pump main body, housing and end cap, and pump main body is arranged in housing, and end cap is connected with housing.Hydraulic pump includes oil inlet, and intercommunicating pore is provided with end cap, and intercommunicating pore connects with the inner chamber of oil inlet and housing.Because hydraulic pump internal leakage is inevitable, therefore can there be certain Leakage Energy in the inner chamber of housing.The intercommunicating pore that middle-end of the present invention covers connects housing cavity with oil inlet, is re-used so as to which the Leakage Energy in housing cavity is imported into feed flow press pump in oil inlet.Hydraulic system employs above-mentioned hydraulic pump, and above-mentioned engineering truck employs above-mentioned hydraulic system.By upper design, leakage passage of the prior art is not only eliminated, the effect of repairing can also be played.
Description
Technical field
The present invention relates to Hydraulic Elements and engineering machinery field, in particular to a kind of hydraulic pressure pump hydraulic system and work
Journey car.
Background technology
One complete hydraulic system is made up of five parts, i.e. dynamical element, executive component, control element, auxiliary member
Part (annex) and working media.Hydraulic pump is the dynamical element of hydraulic system, is to be driven by engine or motor, from hydraulic oil
Fluid is sucked in case, forms pressure oil discharge, is sent to a kind of element of executive component.Hydraulic pump is divided into gear pump, post by structure
Fill in pump, vane pump and screw pump.
Hydraulic pump compares the leakage that distinct issues are hydraulic medium, including internal leakage and external leakage.These leakage rates
Size mainly influence whether the performance of pump.External leakage is exactly to leak into outside, such as leakage, the single end face of packing seal
Normal micro-leakage of mechanical seal etc. belongs to external leakage.Leaked due to existing, therefore need to carry out hydraulic pump repairing, and needed
Being collected into fuel tank for hydraulic pump internal leakage is re-used, this needs to connect long drain line.
Therefore it provides a kind of hydraulic pump for not needing drain line, this is for simplifying hydraulic pump, hydraulic system and engineering truck
Overall structure there is important realistic meaning.
The content of the invention
Object of the present invention is to provide a kind of hydraulic pump, and it does not need special drain line, so that entirely
The structure of hydraulic pump becomes more compact.
Another object of the present invention is to provide a kind of hydraulic system, that includes above-mentioned hydraulic pump, so that entirely
The structure of hydraulic system becomes more simple.
It is also an object of the present invention to provide a kind of engineering truck, that includes above-mentioned hydraulic system, so that work
The structure of journey car becomes more compact, simple.
What the present invention was realized in：
A kind of hydraulic pump, including pump main body, housing, end cap, the pump main body are arranged in the housing, the end cap with
The housing connection；
The hydraulic pump includes oil inlet, is provided with intercommunicating pore on the end cap, the intercommunicating pore and the oil inlet and
The inner chamber connection of the housing.
Further,
Filter screen is provided with the intercommunicating pore.
Further,
The filter screen is metal screen or nylon leaching net.
Further,
The filter screen is detachably connected with the end cap.
Further,
The intercommunicating pore is shoulder hole, and the shoulder hole includes boss, and the filter screen is connected with the boss.
Further,
The intercommunicating pore is cylindrical hole.
Further,
The hydraulic pump also includes control valve, and the control valve is connected with the end cap.
Further,
The hydraulic pump is plunger pump, gear pump or vane pump.
A kind of hydraulic system, the hydraulic system include hydraulic station and described hydraulic pump, the hydraulic pump and the liquid
The connection of pressure station.
A kind of engineering truck, the engineering truck include chassis and described hydraulic system, the hydraulic system and the chassis
Connection.
The beneficial effects of the invention are as follows：
Hydraulic pump, hydraulic system and the engineering truck that the present invention is obtained by above-mentioned design, because hydraulic pump internal leakage can not
Avoid, therefore can have certain Leakage Energy in the inner chamber of housing.The intercommunicating pore that middle-end of the present invention covers is by housing cavity and oil-feed
Mouth connection, re-used so as to which the Leakage Energy in housing cavity is imported into feed flow press pump in oil inlet.By upper design, not only
Leakage passage of the prior art is eliminated, the effect of repairing can also be played.
Brief description of the drawings
, below will be to required use in embodiment in order to illustrate more clearly of the technical scheme of embodiment of the present invention
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, therefore be not to be seen as
It is the restriction to scope, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root
Other related accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is the structural representation for the hydraulic pump that embodiment of the present invention provides；
Fig. 2 is the structural representation that embodiment of the present invention provides end cap.
Icon：100- hydraulic pumps；110- pump main bodys；120- housings；130- end caps；132- through holes；134- supporting plates；
1342- mounting holes；The spaces of 1344- first；1346- second spaces；140- oil inlets；150- oil-outs；160- intercommunicating pores；170-
Filter screen；180- control valves.
Embodiment
To make the purpose, technical scheme and advantage of embodiment of the present invention clearer, implement below in conjunction with the present invention
Accompanying drawing in mode, the technical scheme in embodiment of the present invention is clearly and completely described, it is clear that described reality
The mode of applying is a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.
Therefore, the detailed description of the embodiments of the present invention to providing in the accompanying drawings is not intended to limit requirement guarantor below
The scope of the present invention of shield, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to the present invention
The scope of protection.
In the description of the invention, it is to be understood that the term of indicating position or position relationship is based on shown in accompanying drawing
Orientation or position relationship, be for only for ease of the description present invention and simplify description, rather than instruction or imply signified equipment
Or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not considered as limiting the invention.
In the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " fixation " etc.
Term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be that machinery connects
Connect or electrically connect；Can be joined directly together, can also be indirectly connected by intermediary, can be in two elements
The connection in portion or the interaction relationship of two elements.For the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in the present invention.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, or should
Invention product using when the orientation usually put or position relationship, be for only for ease of the description present invention and simplify description, without
It is instruction or implies that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore not
It is understood that as limitation of the present invention.When the orientation to accompanying drawing is changed, simply the term of orientation or relation should be corresponding
Change.
In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that instruction or hint
Relative importance.
The term such as term " level ", " vertical ", " pendency " is not offered as requiring part abswolute level or pendency, but can be with
It is slightly tilted.Such as " level " only refers to that its direction is more horizontal with respect to for " vertical ", is not to represent that the structure must
Fully horizontally, but can be slightly tilted.
" parallel " or " vertical " is not required for inclination that is absolute parallel or vertical, but can having certain, as long as not influenceing
The realization of technical scheme, it can be parallel or vertical at last.
In the present invention, unless otherwise clearly defined and limited, fisrt feature can be with or below second feature
Directly contacted including the first and second features, can also include the first and second features not be direct contact but by them it
Between other characterisation contact.Moreover, fisrt feature is on second feature, top and above to include fisrt feature special second
Directly over sign and oblique upper, or be merely representative of fisrt feature level height and be higher than second feature.Fisrt feature second feature it
Under, lower section and fisrt feature included below are immediately below second feature and obliquely downward, or be merely representative of fisrt feature level height
Less than second feature.
Embodiment 1：
A kind of hydraulic pump 100 is present embodiments provided, such as Fig. 1, the hydraulic pump 100 mainly includes pump main body 110, housing
120 and end cap 130.Pump main body 110 is arranged in housing 120, and end cap 130 is connected with housing 120.Hydraulic pump 100 includes oil-feed
Mouthfuls 140, intercommunicating pore 160 is provided with end cap 130, and intercommunicating pore 160 connects with the inner chamber of oil inlet 140 and housing 120.
Specifically, such as Fig. 1 and Fig. 2, a kind of plunger pump, including pump main body 110, housing 120, post are present embodiments provided
Plug, end cap 130, power transmission shaft, swash plate and oil distribution casing.Power transmission shaft drives pump main body 110 to rotate, and the uniform case of plunger is in pump main body
On 110, the head of plunger is equipped with piston shoes, and piston shoes are connected with plunger ball pivot, can arbitrarily be rotated.Steel ball and pressing plate are passed through by spring
Piston shoes are pressed against on swash plate.So, when pump main body 110 rotates, plunger can moves back and forth in cylinder body, completes oil suction
With force feed process.Oil distribution casing connects with the oil inlet 140 and oil-out 150 of pump, and is fixed in pump main body 110.
Such as Fig. 2, end cap 130 is by discoid revolving body, and its middle part is provided with through hole 132, and branch is provided with through hole 132
Fagging 134, mounting hole 1342 is provided with supporting plate 134, and mounting hole 1342 is used to install power transmission shaft.Supporting plate 134 is by end cap
130 inner chamber is split to form the first space 1344 and second space 1346, the supporting plate 134 in the corresponding diagram 2 of the first space 1344
The space of bottom, the space are used to install pump main body 110, connected with the inner chamber of housing 120.
Such as Fig. 2, be provided with intercommunicating pore 160 in the supporting plate 134 of end cap 130, intercommunicating pore 160 by the inner chamber of housing 120 with
Oil inlet 140 connects.Therefore, when whole hydraulic pump 100, which assembles, completes ice work, hydraulic pump 100 is arrived due to internal leakage
The hydraulic oil flowed in the inner chamber of housing 120 can enter hydraulic pressure to be passed straight back in oil inlet 140 by oil inlet 140
Re-used in pump 100.
Further, in the present embodiment, boss is provided with intercommunicating pore 160, specifically, intercommunicating pore 160 is a shoulder hole.
Filter screen 170 is provided with intercommunicating pore 160, filter screen 170 is connected with boss, and specifically, the present embodiment filter screen 170 and boss are detachable
Connection.
Because pump main body 110 can produce impurity during rotation, therefore can be by the inner chamber of housing 120 by filter screen 170
In impurity filtered, prevent it from entering in hydraulic system.Filter screen 170 is detachably connected with boss, therefore, when filter screen 170
When upper blocking has more impurity, filter screen 170 can be pulled down to cleaning, cleaning is reinstalled intercommunicating pore 160 later.
In the present embodiment, filter screen 170 employs metal screen 170, in other embodiments, can use nylon leaching net
170。
Hydraulic pump 100 further comprises control valve 180, and control valve 180 is connected with housing 120.
The beneficial effect for the hydraulic pump 100 that the present embodiment provides is：
In the prior art, the oil in the inner chamber of housing 120 is directed back in fuel tank using special leakage passage；This implementation
In example, leakage passage is eliminated, intercommunicating pore 160 is machined on end cap 130, the oil in the inner chamber of housing 120 is imported into oil-feed
140 positions of mouth, so as to which direct feed flow press pump 100 uses.By upper design, leakage passage of the prior art is not only eliminated,
The effect of repairing can also be played.Additionally, due to filter screen 170 is provided with linked hole 132, housing 120 can be effectively prevented from
Metal impurities in inner chamber are entered in hydraulic system.
It should be noted that the present embodiment is only by taking plunger pump as an example, the technical scheme that present disclosure provides is same
Suitable for gear pump, vane pump etc..
In the case where not conflicting, the technical characteristic in the present embodiment can be combined.
Embodiment 2：
The hydraulic pump 100 provided in a kind of hydraulic system, including hydraulic station and embodiment 1, hydraulic pressure are be provided
Pump 100 is connected with hydraulic station.
Because the hydraulic system employs the hydraulic pump 100 provided in embodiment 1, therefore hydraulic system is not directed to hydraulic pump
100 leakage passage, the structure of whole hydraulic system becomes relatively simple compact, and has saved cost.
Embodiment 3：
A kind of engineering truck is present embodiments provided, it includes the hydraulic system provided in chassis and embodiment 2, hydraulic system
It is connected by hydraulic station with chassis.Specifically, engineering truck can be that loading machine, excavator, crane etc. need hydraulic system
Engineering truck.Can certainly be other equipment for needing hydraulic system.
The preferred embodiment of the present invention is the foregoing is only, is not intended to limit the invention, for this area
For technical staff, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
1. a kind of hydraulic pump, it is characterised in that including pump main body (110), housing (120), end cap (130), the pump main body
(110) it is arranged in the housing (120), the end cap (130) is connected with the housing (120)；
The hydraulic pump includes oil inlet (140), and intercommunicating pore (160), the intercommunicating pore are provided with the end cap (130)
(160) inner chamber with the oil inlet (140) and the housing (120) connects.
2. hydraulic pump according to claim 1, it is characterised in that be provided with filter screen (170) on the intercommunicating pore (160).
3. hydraulic pump according to claim 2, it is characterised in that the filter screen (170) is metal screen (170) or nylon
Filter screen (170).
4. hydraulic pump according to claim 2, it is characterised in that the filter screen (170) is detachable with the end cap (130)
Connection.
5. hydraulic pump according to claim 2, it is characterised in that the intercommunicating pore (160) includes boss, the filter screen
(170) it is connected with the boss.
6. hydraulic pump according to claim 1, it is characterised in that the intercommunicating pore (160) is cylindrical hole.
7. hydraulic pump according to claim 1, it is characterised in that the hydraulic pump also includes control valve (180), the control
Valve (180) processed is connected with the end cap (130).
8. hydraulic pump according to claim 1, it is characterised in that the hydraulic pump is plunger pump, gear pump or vane pump.
9. a kind of hydraulic system, it is characterised in that the hydraulic system is included described in hydraulic station and any one of claim 1 to 8
Hydraulic pump, the hydraulic pump is connected with the hydraulic station.
A kind of 10. engineering truck, it is characterised in that hydraulic system of the engineering truck described in including chassis and claim 9, it is described
Hydraulic system is connected with the chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710885392.8A CN107401501A (en) | 2017-09-26 | 2017-09-26 | Hydraulic pump, hydraulic system and engineering truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710885392.8A CN107401501A (en) | 2017-09-26 | 2017-09-26 | Hydraulic pump, hydraulic system and engineering truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401501A true CN107401501A (en) | 2017-11-28 |
Family
ID=60388281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710885392.8A Pending CN107401501A (en) | 2017-09-26 | 2017-09-26 | Hydraulic pump, hydraulic system and engineering truck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401501A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953138A (en) * | 2018-09-18 | 2018-12-07 | 杭州力龙液压有限公司 | Hydraulic planger pump and hydraulic device |
| CN109738601A (en) * | 2018-12-12 | 2019-05-10 | 北京博瑞环境工程有限公司 | Agricultural Non-point Source Pollution Online Monitoring System |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5580224A (en) * | 1994-06-03 | 1996-12-03 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Reciprocating type compressor with oil separating device |
| CN201225247Y (en) * | 2008-07-02 | 2009-04-22 | 燕山大学 | Novel motor axial plunger pump |
| CN203214314U (en) * | 2013-04-28 | 2013-09-25 | 褚锡生 | Return oil-less axial plunger pump |
| US20140328702A1 (en) * | 2011-12-07 | 2014-11-06 | Eco Thermics Corporation | Axial piston high pressure compressor/pump |
| CN207161321U (en) * | 2017-09-26 | 2018-03-30 | 杭州力龙液压有限公司 | Hydraulic pump, hydraulic system and engineering truck |
-
2017
- 2017-09-26 CN CN201710885392.8A patent/CN107401501A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5580224A (en) * | 1994-06-03 | 1996-12-03 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Reciprocating type compressor with oil separating device |
| CN201225247Y (en) * | 2008-07-02 | 2009-04-22 | 燕山大学 | Novel motor axial plunger pump |
| US20140328702A1 (en) * | 2011-12-07 | 2014-11-06 | Eco Thermics Corporation | Axial piston high pressure compressor/pump |
| CN203214314U (en) * | 2013-04-28 | 2013-09-25 | 褚锡生 | Return oil-less axial plunger pump |
| CN207161321U (en) * | 2017-09-26 | 2018-03-30 | 杭州力龙液压有限公司 | Hydraulic pump, hydraulic system and engineering truck |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953138A (en) * | 2018-09-18 | 2018-12-07 | 杭州力龙液压有限公司 | Hydraulic planger pump and hydraulic device |
| CN109738601A (en) * | 2018-12-12 | 2019-05-10 | 北京博瑞环境工程有限公司 | Agricultural Non-point Source Pollution Online Monitoring System |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171128 |
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| RJ01 | Rejection of invention patent application after publication |