CN206668492U - Piston pump - Google Patents
Piston pump Download PDFInfo
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- CN206668492U CN206668492U CN201720408216.0U CN201720408216U CN206668492U CN 206668492 U CN206668492 U CN 206668492U CN 201720408216 U CN201720408216 U CN 201720408216U CN 206668492 U CN206668492 U CN 206668492U
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- piston
- gear
- piston cylinder
- transmission mechanism
- drive shaft
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Abstract
The utility model discloses a kind of piston pump, including housing, motor, drive shaft, transmission mechanism, two pistons and two to accommodate the piston cylinder of piston respectively；Drive shaft is fixed on housing, one end connection of motor and drive shaft；Transmission mechanism is arranged on enclosure interior, and axle is connected to one end of transmission mechanism to two pistons respectively；Piston cylinder is fixedly arranged on housing, and its one end is socketed on piston, and the other end has at least one medium AC port；Wherein, motor drives drive shaft rotation, and drive shaft drives piston to be moved in piston cylinder by transmission mechanism, and then causes the annular seal space that variable volume is formed in piston cylinder；When transmission mechanism drives two piston movements, the moving direction of two pistons is consistent, and the volume of the annular seal space formed respectively in two piston cylinders changes on the contrary, the flow direction that the medium of respective medium AC port is flowed through in two piston cylinders is opposite.The utility model can drive two sets of piston apparatus actings simultaneously, and power utilization efficiency is doubled.
Description
Technical field
Hydraulic Field is the utility model is related to, more particularly to a kind of piston pump.
Background technology
Piston pump is widely used in Hydraulic Field, and it is mainly used in as hydraulic system trandfer fluid.In prior art
In, power set driving piston pump acting, medium is flowed into and discharged out of piston pump, and Jie of closed loop is formed with medium exchange device
Matter loop.It should be evident that in such a system, a power set drive a piston pump operation.Day is used in the energy increasingly
In fast modernization industry production and life, it is necessary to improve the efficiency of energy utilization of piston pump.
Utility model content
The purpose of this utility model is the not high technical problem of efficiency of energy utilization for solving piston pump in the prior art.
To achieve the above object, the utility model proposes a kind of piston pump, the piston pump include housing, motor,
Drive shaft, transmission mechanism, two pistons and two accommodate the piston cylinder of piston respectively；The drive shaft is fixed on the housing
On, the motor is connected with one end of the drive shaft；The transmission mechanism is arranged on the enclosure interior, two pistons
Axle is connected to one end of the transmission mechanism respectively；The piston cylinder is fixedly arranged on the housing, and its one end is socketed on the piston
On, the other end has at least one medium AC port；Wherein, the motor drives the drive shaft rotation, the driving
Axle drives the piston to be moved in the piston cylinder by the transmission mechanism, and then to form volume in the piston cylinder
Variable annular seal space；When the transmission mechanism drives described two piston movements, the moving direction of described two pistons is consistent,
The volume of the annular seal space formed respectively in described two piston cylinders changes on the contrary, flowing through respective medium in described two piston cylinders
The flow direction of the medium of AC port is opposite.
Preferably, the transmission mechanism includes rack frame and gear, and the gear is fixed on the other end of the drive shaft, the frame
Frame is internally provided with rack symmetrical above and below and forms rack-track, and the gear makes the transmission mechanism parallel with rack engagement rotation
It is mobile.
Preferably, the gear is half gear, and the gear can reversely rotate after being rotated along the rack-track.
Preferably, the number of teeth of the half gear is z (z is >=5 natural number), and the number of overall gear is 3 (z-1), single
The number of teeth of bar rack-track is more than or equal to 2z.
Preferably, the tooth reference diameter of the rack is equal to the reference diameter of the gear.
Preferably, the rack and the gear are tight mesh.
Preferably, be provided with inlet and outlet in the side wall of the other end of the piston cylinder, when the annular seal space volume increase,
Medium is inhaled into the piston cylinder by the import, and when the volume-diminished of the annular seal space, the medium should by outlet outflow
Piston cylinder.
Preferably, the import of the piston cylinder is connected by inlet valve with intake line, and the outlet of the piston cylinder passes through discharge
Valve is connected with discharge line, and the inlet valve and the dump valve are check valve.
Preferably, sealing ring and gasket seal are provided between the piston and the piston cylinder, through hole are provided with the piston,
The sealing ring and the gasket seal are fixed between the piston and the piston cylinder by the through hole.
Preferably, the housing is the protection cap of one group of symmetric design, and the first storage tank, the second appearance are provided with the protection cap
Put groove and the 3rd storage tank；First storage tank is used to install the transmission mechanism；Second storage tank and the 3rd storage tank are equal
For arc groove, for supporting the both ends of the piston cylinder respectively, the edges of two arc grooves respectively with the piston cylinder surface
The two recessed circumferentials engaging set；The lower edges of the storage tank set spaced positioning hole；Two protection caps connect
Edge be provided with raised and groove, projection and groove cooperation make two protection caps connect.
Technical solutions of the utility model drive two sets of piston apparatus actings by using a motor simultaneously, compared to existing
Technology, power utilization efficiency are doubled.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to the structure shown in these accompanying drawings.
Fig. 1 is the overall structure diagram of the embodiment of the utility model piston pump one；
Fig. 2 is the overall structure diagram after housing is opened in Fig. 1；
Fig. 3 is the front view of the section at A in Fig. 2；
Fig. 4 is the parts explosion of Fig. 1 enclosure interior；
Fig. 5 is Fig. 1 exploded view.
In figure：
Housing 11；
Motor 12；
Drive shaft 13；
Transmission mechanism 14；
Rack frame 141；
Gear 142；
Piston 15,16；
Piston cylinder 17,18；
First diaphragm seal 19；
First diaphragm seal 20；
First diaphragm seal 21；
Import 191；
Outlet 192；
Inlet valve 201；
Dump valve 202；
Intake line 211；
Discharge line 212；
Sealing ring 22；
Gasket seal 23；
Protection cap 111,112；
First storage tank 1111；
Second storage tank 1112；
3rd storage tank 1113；
Positioning hole 1114；
Projection 1115.
Realization, functional characteristics and the advantage of the utility model purpose will be described further referring to the drawings in conjunction with the embodiments.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, it is intended to for explaining the utility model, and it is not intended that to the utility model
Limitation, based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
In description of the present utility model, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width
Degree ", " thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer ", " suitable
The orientation or position relationship of the instruction such as hour hands ", " counterclockwise " " axial direction ", " circumference ", " radial direction " are based on orientation shown in the drawings
Or position relationship, be for only for ease of description the utility model and simplify and describe, rather than instruction or imply signified device or
Element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the present utility model
System.
In addition, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In description of the present utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be
Concrete meaning in the utility model.
With reference to shown in figure 1- Fig. 5, Fig. 1-Fig. 5 is a kind of piston pump provided according to the embodiment of the utility model one.It please join
Fig. 3 is examined, the piston pump shown in Fig. 3 includes 14, two housing 11, motor 12, drive shaft 13, transmission mechanism pistons 15 and 16
And two piston cylinders 17 and 18 for accommodating piston respectively.Drive shaft 13 is fixed on housing 11, motor 12 and drive shaft 13
One end connection；Transmission mechanism 14 is arranged on inside housing 11, and axle is connected to the one of transmission mechanism 14 to two pistons 15 and 16 respectively
End；Piston cylinder 17 and 18 is fixedly arranged on housing 11, and its one end is socketed on piston, and the other end has a medium AC port (figure
Do not show)；Wherein, motor 12 drives drive shaft 13 to rotate, and drive shaft 13 drives piston 15 in piston by transmission mechanism 14
Moved in cylinder 17, piston 16 moves in piston cylinder 18, and then to form variable volume in piston cylinder 17 and piston cylinder 18
Annular seal space；When transmission mechanism 14 drives two pistons 15 and 16 to move, two pistons 15 are consistent with 16 moving direction, two
The volume of the annular seal space formed respectively in piston cylinder 17 and 18 changes on the contrary, flowing through respective medium in two piston cylinders 17 and 18
The flow direction of the medium of AC port is opposite.That is, when piston cylinder 17 sucks medium, piston cylinder 18 discharges medium；Instead
It, when piston cylinder 17 discharges medium, piston cylinder 18 sucks medium.
It is to be appreciated that above-mentioned medium includes two kinds of forms of liquids and gases.
In above-mentioned piston pump, when transmission mechanism 14 moves, piston 15 moves with piston 16 to consistent direction so that living
Plug tube 17 and piston cylinder 18 can suck and discharge in a reverse direction medium.Compared to prior art a set of piston can only be driven to fill
Acting is put, power utilization efficiency is doubled by the utility model.
As shown in figure 4, transmission mechanism 14 includes rack frame 141 and gear 142, gear 142 is fixed on drive shaft 13
Other end (not shown), framework 141 are internally provided with rack 1410 symmetrical above and below and form rack-track, gear 142 and gear
1410 engagement rotations move in parallel transmission mechanism 14.
Preferably, rack frame 141 is closed-in construction.
Preferably, gear 142 is half gear, and gear 142 can reversely rotate after rotating certain number of degrees along rack-track.
Preferably, the number of teeth design rule of gear 142 is：The number of teeth of half gear is that (z is z>=5 natural number), it is whole
The number of body gear is 3 (z-1), and the number of teeth and rack-track of gear 142 during the motion of the twocouese of gear 142 are easy in number of teeth design
Rack 1410 the number of teeth engagement.The number of teeth of wall scroll rack-track is more than or equal to 2z.
Preferably, rack-track is linear type structure, is the open and flat later profile of circumferencial direction of gear 142, with gear
142 path of contact is completely superposed, to ensure that the frictional force between gear 142 and rack-track is minimum and when can guarantee that engagement without mistake
Cut or cut-in without ball phenomenon.
Preferably, the tooth reference diameter of gear 1410 is equal to the reference diameter of gear 142.
Preferably, gear 1410 and gear 142 are tight mesh, to ensure gear 142 when being run on rack-track
Keep low noise.
In above-mentioned transmission mechanism 14, gear 142 engages rotation with the gear 1410 of rack-track, and rack-track is produced
The active force of parallel direction so that rack frame 141 can move in parallel, so as to drive piston apparatus to move in parallel.Due to gear
142 be that half gear structure designs, and gear 142 is on rack-track to rotating to nothing after certain angle clockwise or counterclockwise
Method is further continued for rotating, and 5 or 6 shift position at this moment of piston is maximum displacement of the piston in this direction.Gear 142 is in rack rail
Then rotated in the opposite direction on road, band piston 5 or 6 accordingly moves toward opposite direction.It is to be appreciated that gear 142 is in rack rail
The original position of gear 142 is rotated in the opposite direction on road, can not be turned round again.So, reciprocal fortune of the gear 142 in rack-track
Dynamic band piston 5 or 6 moves back and forth.
In the present embodiment, the both ends of rack frame 141 can set a piston respectively, it is, transmission mechanism 14 can
Two sets of piston movement device actings are driven simultaneously.In other embodiments, other drive mechanisms can also be used to substitute this
Rack frame 141 and gear 142 in embodiment, within the scope of the understanding of those skilled in the art.
As shown in figure 5, the other end of piston cylinder 17 and the first diaphragm seal 19, the second diaphragm seal 20 and spiral shell of the 3rd diaphragm seal 21
Connect.First diaphragm seal 19, the second diaphragm seal 20 and the 3rd diaphragm seal 21 are fixed in the side wall of shell 11 together, with sealing piston
The other end of cylinder 17.
Two medium AC ports, import 191 and outlet 192 are provided with first diaphragm seal 19, is set on the second diaphragm seal 20
Inlet valve 201 and dump valve 202 are equipped with, intake line 211 and discharge line 212 are provided with the 3rd diaphragm seal 21.Wherein,
Positioning hole is respectively arranged with one diaphragm seal 19, the second diaphragm seal 20 and the 3rd diaphragm seal 21, to connect diaphragm seal.Import 191
Inlet valve 201 is provided between intake line 211, dump valve 202 is provided between outlet 192 and discharge line 212, is sucked
Valve 201 and dump valve 202 are check valve.Preferably, inlet valve 201 is identical with the structure of dump valve 202.
When piston movement increases the volume of annular seal space, the medium pressure in annular seal space reduces, and inlet valve 201 is opened,
Medium is inhaled into piston cylinder 17 by import 191；When in the volume-diminished of annular seal space, annular seal space medium pressure increase,
Dump valve 202 is opened, and medium is flowed out outside piston cylinder 17 by outlet 192.So, piston cylinder 17 can be with the Medium Exchange in the external world
Device is connected, and forms the medium loop of a closed loop.
Alternatively, the circular groove of depression is provided with the first diaphragm seal 19, to accommodate the circle that piston cylinder 17 protrudes shell 1
Zhou Duan.
In other embodiments, also above-mentioned first diaphragm seal 19, the can be substituted using others sealing and connected mode
Two diaphragm seals 20 and the 3rd diaphragm seal 21.
Preferably, sealing ring 22 and gasket seal 23 are provided between piston 15 and piston cylinder 17, is provided with piston 15
Also through hole is each provided with through hole, sealing ring 22 and gasket seal 23, sealing ring 22 and gasket seal 23 are fixed by through hole
Between piston 15 and piston cylinder 17.
Preferably, housing 11 includes the protection cap 111 and 112 of one group of symmetric design.Protection cap shown in Figure 5
111, the first storage tank 1111, the second storage tank 1112 and the 3rd storage tank 1113 are provided with protection cap 111；First storage tank
1111 are used to house transmission mechanism 14, and the second storage tank 1112 and the 3rd storage tank 1113 are used to house piston cylinder 17.
Preferably, the frame being adapted to the first storage tank 1111 is provided with the rack frame 141 in transmission mechanism 14, is led to
Cross and engage the frame to install rack frame 141 with the first storage tank 1111；Second storage tank 1112 and the 3rd storage tank
1113 be arc groove, for distinguishing the both ends of supporting piston cylinder 17, the second storage tank 1112 and the 3rd storage tank 1113
Bossing is provided with the edge of arc groove, two depressions that two bossings are set with the surface of piston cylinder 17 are justified
Zhou Kahe, to house piston cylinder 17；Set around first storage tank 1111, the second storage tank 1112 and the 3rd storage tank 1113
Spaced positioning hole 1114；Projection 1115 and groove (not shown) are provided with the edge that protection cap 111 and 112 connects, it is convex
Rise 1115 and groove (not shown) coordinate protection cap 111 and 112 is connected.
It is to be appreciated that mutually isostructural storage tank is provided with protection cap 111 to house piston cylinder 18, protection cap 112
It is interior to have with 111 symmetrical design structure of protection cap, and the collective effect of protection cap 111 with accommodating transmission mechanism 14 and piston cylinder
17, it will not be repeated here.In other embodiments, can also other set-up modes be used to house transmission mechanism in protection cap 111
14 and piston cylinder 17, within the scope of the understanding of those skilled in the art, it will not be described further.
When being assembled to the present embodiment, drive shaft 13 is installed on housing 11, i.e., in protection cap 111, motor 12 is installed on
One end of drive shaft 13, gear 142 are installed on the other end that drive shaft 13 is located inside protection cap 111, and gear frame 41 is installed
In on the first storage tank 1111, piston cylinder 17 is installed on the second storage tank 1112 and the 3rd storage tank 1113, using with installation
The identical mode of piston cylinder 17 installs piston cylinder 18, and the groove on the mating protection lid 112 of projection 1115 of protection cap 111 makes
Protection cap 112 and 111 engages.The first diaphragm seal 19, the second diaphragm seal 20 and the 3rd diaphragm seal 21 are fixed on shell 11 again.
Intake line 211 and discharge line 212 on first diaphragm seal 21 are connected with the medium exchange device in the external world.
The utility model is using the two sets of piston apparatus work of a motor driven, compared to prior art, power utilization profit
Rate is doubled.In addition, transport mechanism and protection cap use succinct structure design, it is easily installed and dismantles, also help
In reduction production cost.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present utility model.In this manual, to the schematic table of above-mentioned term
State and be necessarily directed to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be with
Combined in an appropriate manner in any one or more embodiments or example.In addition, in the case of not conflicting, this area
Technical staff the different embodiments or example and the feature of different embodiments or example described in this specification can be entered
Row combines and combination.
Preferred embodiment of the present utility model is the foregoing is only, not thereby limits the scope of the claims of the present utility model,
Every equivalent structure under utility model of the present utility model design, made using the utility model specification and accompanying drawing content
Conversion, or directly/be used in other related technical areas indirectly and be included in scope of patent protection of the present utility model.
Claims (10)
- A kind of 1. piston pump, it is characterised in that the piston pump include housing, motor, drive shaft, transmission mechanism, two Piston and two piston cylinders for accommodating piston respectively；The drive shaft is fixed on the housing, the motor with it is described One end connection of drive shaft；The transmission mechanism is arranged on the enclosure interior, and axle is connected to the driver to two pistons respectively One end of structure；The piston cylinder is fixedly arranged on the housing, and its one end is socketed on the piston, and the other end has at least one Medium AC port；Wherein, the motor drives the drive shaft rotation, and the drive shaft is driven by the transmission mechanism The piston moves in the piston cylinder, and then causes the annular seal space that variable volume is formed in the piston cylinder；When the biography When motivation structure drives described two piston movements, the moving direction of described two pistons is consistent, in described two piston cylinders respectively The volume of the annular seal space of formation changes on the contrary, flowing through the flowing side of the medium of respective medium AC port in described two piston cylinders To opposite.
- 2. piston pump as claimed in claim 1, it is characterised in that the transmission mechanism includes rack frame and gear, described Gear is fixed on the other end of the drive shaft, and the lower portion is provided with rack symmetrical above and below and forms rack-track, institute Stating gear and engaging rotation with the rack moves in parallel the transmission mechanism.
- 3. piston pump as claimed in claim 2, it is characterised in that the gear is half gear, and the gear is along the tooth It can be reversely rotated after the rotation of bar track.
- 4. piston pump as claimed in claim 3, it is characterised in that the number of teeth of the half gear is z, and z is >=5 nature Number, the number of overall gear is 3 (z-1), and the number of teeth of wall scroll rack-track is more than or equal to 2z.
- 5. piston pump as claimed in claim 2, it is characterised in that the tooth reference diameter of the rack is equal to the gear Reference diameter.
- 6. the piston pump as described in any one of claim 2 to 5, it is characterised in that the rack and the gear are gapless Engagement.
- 7. piston pump as claimed in claim 1, it is characterised in that be provided with import in the side wall of the other end of the piston cylinder And outlet, when the volume of the annular seal space increases, medium is inhaled into the piston cylinder by the import, when the sealing The volume-diminished of chamber, the medium flow out the piston cylinder by the outlet.
- 8. piston pump as claimed in claim 7, it is characterised in that the import of the piston cylinder passes through inlet valve and suction line Road is connected, and the outlet of the piston cylinder is connected by dump valve with discharge line, and the inlet valve and the dump valve are list To valve.
- 9. piston pump as claimed in claim 1, it is characterised in that be provided with sealing ring between the piston and the piston cylinder And gasket seal, through hole is provided with the piston, and the sealing ring and the gasket seal are fixed on institute by the through hole State between piston and the piston cylinder.
- 10. piston pump as claimed in claim 1, it is characterised in that the housing is the protection cap of one group of symmetric design, described The first storage tank, the second storage tank and the 3rd storage tank are provided with protection cap；First storage tank is used to install the biography Motivation structure；Second storage tank and the 3rd storage tank are arc groove, for supporting the two of the piston cylinder respectively End, two recessed circumferentials that the edge of described two arc grooves is set with the piston cylinder surface respectively engage；It is described accommodating The lower edges of groove set spaced positioning hole；The edge that described two protection caps connect is provided with raised and groove, described Raised and described groove, which coordinates, makes described two protection caps connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408216.0U CN206668492U (en) | 2017-04-18 | 2017-04-18 | Piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720408216.0U CN206668492U (en) | 2017-04-18 | 2017-04-18 | Piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206668492U true CN206668492U (en) | 2017-11-24 |
Family
ID=60372716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720408216.0U Active CN206668492U (en) | 2017-04-18 | 2017-04-18 | Piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206668492U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035642A (en) * | 2017-04-18 | 2017-08-11 | 深圳市科睿精密科技有限公司 | Piston pump |
| CN108386334A (en) * | 2018-03-13 | 2018-08-10 | 佛山安豪科技服务有限公司 | A kind of electric water pump |
-
2017
- 2017-04-18 CN CN201720408216.0U patent/CN206668492U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107035642A (en) * | 2017-04-18 | 2017-08-11 | 深圳市科睿精密科技有限公司 | Piston pump |
| CN107035642B (en) * | 2017-04-18 | 2020-01-17 | 深圳市科睿精密科技有限公司 | Piston pump |
| CN108386334A (en) * | 2018-03-13 | 2018-08-10 | 佛山安豪科技服务有限公司 | A kind of electric water pump |
| CN108386334B (en) * | 2018-03-13 | 2019-12-03 | 佛山安豪科技服务有限公司 | A kind of electric water pump |
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