CN205638826U - Plunger pump - Google Patents
Plunger pump Download PDFInfo
- Publication number
- CN205638826U CN205638826U CN201620474100.2U CN201620474100U CN205638826U CN 205638826 U CN205638826 U CN 205638826U CN 201620474100 U CN201620474100 U CN 201620474100U CN 205638826 U CN205638826 U CN 205638826U
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- CN
- China
- Prior art keywords
- pump
- piston rod
- pump housing
- fixed
- cyst membrane
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a plunger pump. Plunger pump includes pump case, interior pump, joins in marriage class subassembly and two at least hydraulic pumps, two at least hydraulic pumps are all fixed on joining in marriage class subassembly, and use and to join in marriage class subassembly for central evenly distributed, join in marriage class subassembly off -centre establish including in the pump, interior pump is established just can be at the pump case internal rotation in the pump case, each hydraulic pump includes the pump body, piston rod and sealed bladder membrane, the piston rod is coaxial to be established on the pump body, the piston rod is at pump inner axis to the motion, the one end of sealed bladder membrane is fixed on deciding the pump body, the other end of sealed bladder membrane is fixed on the piston rod and is followed the piston rod and remove, sealed bladder membrane, piston rod and the pump body form first cavity, including the pump body is fixed on the pump, be equipped with the runner on the pump body, the one end and the first cavity intercommunication of runner, the other end of runner with join in marriage a class subassembly intercommunication, it is fixed with interior pump that the piston rod passes through the bulb. The utility model discloses sealed plunger pump durable.
Description
Technical field
This utility model relates to hydraulic pump gentle cylinder technology field, particularly relates to a kind of plunger
Pump.
Background technology
Existing plunger displacement pump has sealing member between the pump housing and piston rod, and the effect of sealing member is main
It is to seal the fluid of the pump housing.When the pump housing or piston rod movement, sealing member along with moving together,
Increase or the volume of fluid in the reduction pump housing.During this sealing member and piston rod or the pump housing it
Between have relatively slip, produce sliding friction, return motion and cause sealing part abrasion to lose efficacy, produce
Hydraulic pump or cylinder Seepage, thus cause system premature failure, it is impossible to use.And it is existing
Have lean between plunger pump piston bar and pump chamber be high-precision cooperation to realize oil suction and force feed,
Requiring the harshest to the cleannes of oil, more somewhat impurity this may result in pump housing damage.
Utility model content
The technical problems to be solved in the utility model is to provide the plunger displacement pump of a kind of static sealing.
For solving the problems referred to above, this utility model provides a kind of plunger displacement pump, and described plunger displacement pump includes
Pump case, interior pump, flow assembly and at least two hydraulic pump, described at least two hydraulic pump is equal
Being fixed on flow assembly, and be uniformly distributed centered by flow assembly, described flow assembly is inclined
The heart is located in interior pump, and described interior pump is located in pump case and can rotate in pump case；Each hydraulic pump
Including the pump housing, piston rod and sealing cyst membrane, described piston rod is coaxially located on the pump housing, described work
Stopper rod is at pump body inner shaft to motion, and one end of described sealing cyst membrane is fixed on determines on the pump housing, described
The other end of sealing cyst membrane is fixed on the piston rod and is followed piston rod and moves, described sealed bladder
Film, piston rod and the pump housing form the first cavity, and the described pump housing is fixed on interior pump, the described pump housing
Being provided with runner, one end of described runner connects with the first cavity, the other end of described runner with
Flow assembly connects, and described piston rod is fixed with interior pump by bulb.
Further, described sealing cyst membrane is made up of rubber.
This utility model also provides for a kind of plunger displacement pump, described plunger displacement pump include pump case, bent axle with
And at least two hydraulic pump being located in pump case, described hydraulic pressure has just been evenly distributed on pump case
On, described at least two hydraulic pump is all connected with bent axle；Each hydraulic pump includes the pump housing, piston
Bar and sealing cyst membrane, described piston rod is coaxially located on the pump housing, and described piston rod is at pump body inner shaft
To motion, one end of described sealing cyst membrane is fixed on determines on the pump housing, another of described sealing cyst membrane
End is fixed on the piston rod and is followed piston rod and moves, described sealing cyst membrane, piston rod and the pump housing
Forming the first cavity, the described pump housing is fixed on interior pump, and the described pump housing is provided with runner, described
One end of runner connects with the first cavity, and the other end of described runner is with the runner on the pump housing even
Logical, described piston rod is connected with bent axle by bulb.
Further, described sealing cyst membrane is made up of rubber.
This utility model also provides for a kind of plunger displacement pump, described plunger displacement pump include swash plate, valve plate with
And at least two hydraulic pump, described at least two hydraulic pump is fixed on valve plate, each hydraulic pressure
Pump is connected with swash plate by bulb；Described each hydraulic pump includes the pump housing, piston rod and sealed bladder
Film, described piston rod is coaxially located on the pump housing, described piston rod at pump body inner shaft to motion, institute
Stating and seal one end of cyst membrane and be fixed on and determine on the pump housing, the other end of described sealing cyst membrane is fixed on work
On stopper rod and follow piston rod and move, it is empty that described sealing cyst membrane, piston rod and the pump housing form first
Chamber, the described pump housing is fixed on interior pump, and the described pump housing is provided with runner, one end of described runner
Connect with the first cavity, the other end of described runner and the flow passage on valve plate, described work
Stopper rod is connected with swash plate by bulb.
Further, described sealing cyst membrane is made up of rubber.
Further, described plunger displacement pump also includes that rotating shaft, described rotating shaft are coaxially located on valve plate.
The two ends sealing cyst membrane are separately fixed at the pump housing and piston rod by this utility model plunger displacement pump
On so that it is moving together along with piston rod in one end of sealing cyst membrane, and without relative slip, makes
Its sealing cyst membrane, without abrasion, extends the service life sealing cyst membrane, thus extends plunger displacement pump
Service life.
Accompanying drawing explanation
Fig. 1 is the structural representation of the better embodiment of this utility model plunger displacement pump.
Fig. 2 is the structural representation of hydraulic pump.
Fig. 3 is the structural representation of the better embodiment of another plunger displacement pump of this utility model.
Fig. 4 is the structural representation of the better embodiment of another plunger displacement pump of this utility model.
Fig. 5 is the structural representation of valve plate.
Fig. 6 is the structural representation of the better embodiment of another plunger displacement pump of this utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings.
Embodiment 1
As it is shown in figure 1, the better embodiment of this utility model plunger displacement pump include pump case 21,
Interior pump 22, flow assembly 23 and four hydraulic pumps 1.Described four hydraulic pumps 1 are the most fixing
On flow assembly 23, and it is uniformly distributed centered by flow assembly 23, described flow assembly
23 bias are located in interior pump 22, in described interior pump 22 is located at pump case 21 and can be at pump case 21
Interior rotation.
As in figure 2 it is shown, each hydraulic pump 1 includes the pump housing 11, piston rod 12 and seals cyst membrane
13, described piston rod 12 is coaxially located on the pump housing 11, and described piston rod 12 is in the pump housing 11
Axially-movable, one end of described sealing cyst membrane 13 is fixed on determines on the pump housing 11, described sealed bladder
The other end of film 13 is fixed on piston rod 12 and follows piston rod 12 and moves, described sealing
Cyst membrane 13, piston rod 12 form the first cavity 14 with the pump housing 11, and the described pump housing 11 is fixed on
On interior pump 22, the described pump housing 11 is provided with runner 111, one end of described runner 111 and the
One cavity 14 connects, and the other end of described runner 111 connects with flow assembly 23, described work
Stopper rod 12 is fixed with interior pump 22 by bulb.Wherein, described sealing cyst membrane 13 is by rubber system
Become.In other embodiments, hydraulic pump 1 can also is that two or more.This liquid
Press pump 1 also serves as pulsometer and uses, and only need to change the medium in the pump housing 11 into gas.
When interior pump 22 rotates, the pump housing 11 rotates along with interior pump 22, because flow assembly 23 is inclined
The heart is located in interior pump 22 so that it is the retracted position of four hydraulic pumps 1 differs, therefore at interior pump
22 is eccentric when the pump housing 11 can be made to rotate when rotating, and is rotating a circle during this, piston rod 12
Stretch out and retract, stretching out again, completing oil suction force feed action.Otherwise, when in flow assembly 23
The 3rd cavity 231 and the 4th cavity 232 in fluid can promote piston rod when having pressure differential
12 motions, and then make the pump housing 11 and interior pump 22 rotate, it is thusly-formed hydraulic motor.
The two ends sealing cyst membrane 13 are separately fixed on the pump housing 11 and piston rod 12 so that it is
Move together along with piston rod 12 in one end of sealing cyst membrane 13, and without relative slip so that it is
Seal cyst membrane 13 to increase without abrasion, the service life sealing cyst membrane 13, extend hydraulic pump 1
Service life, thus extend the service life of plunger displacement pump.
Embodiment 2
Being as it is shown on figure 3, the present embodiment is different from embodiment 1, plunger pump structure is different,
Hydraulic pump 1 structure used is identical.
Specifically, described plunger displacement pump includes pump case 31, bent axle 32 and is located at pump case
Four hydraulic pumps 1 on 31, described hydraulic pump 1 is evenly distributed in pump case 11, described
Four hydraulic pumps 1 are all connected with bent axle 32；The piston rod 12 of described hydraulic pump 1 passes through bulb
It is connected with bent axle 32.In other embodiments, hydraulic pump 1 can also is that two or two
More than individual.
Drive piston rod 12 to move, to play the effect of oil suction force feed when bent axle 32 rotates.
Otherwise, when the turnover oil order of each hydraulic fluid port of external control, it is possible to make piston rod 12 promote song
Axle 32 moves, and exports torque.
Embodiment 3
As shown in Figure 4, the present embodiment is different from embodiment 1 to be, plunger pump structure is different,
Hydraulic pump 1 structure used is identical.
Specifically, described plunger displacement pump includes swash plate 42, valve plate 41 and two hydraulic pumps
1, said two hydraulic pump 1 is fixed on valve plate 41, each hydraulic pump 1 by bulb with
Swash plate 42 connects.The stream on runner 111 valve plate 41 on described hydraulic pump 1 pump housing 11
Road 411 connects (as shown in Figure 5), and the piston rod 12 of described hydraulic pump 1 passes through bulb with oblique
Dish 42 connects.In other embodiments, hydraulic pump 1 can also is that two or more.
The pump housing 11 rotates under external force drives, relative sliding between swash plate 42 with swash plate 42 gripper shoe
Dynamic, relatively rotate between the pump housing 11 and valve plate 41, the bulb on piston rod 12 is by bulb pressure
Plate is fixed on swash plate 42, owing to the rotation axis of swash plate 42 with the pump housing 11 has angle,
During rotating a circle, piston rod 12 in oil sucting cavity side (with swash plate 42 apart near one
Side) stretch out, retract fluid pressure at pumping cavity side (with swash plate 42 apart from remote side)
Go out, complete oil suction force feed action, otherwise, then form hydraulic motor.
Embodiment 4
As shown in Figure 6, the present embodiment is different from embodiment 3 to be, described plunger displacement pump also includes
Rotating shaft, remainder is the most identical.
Specifically, described rotating shaft is coaxially located on valve plate 41.
These are only embodiment of the present utility model, not thereby limit of the present utility model specially
Profit scope, every equivalent structure utilizing this utility model description and accompanying drawing content to be made, directly
Connect or be indirectly used in other relevant technical fields, the most in like manner protect in patent of the present utility model
Within the scope of protecting.
Claims (7)
1. a plunger displacement pump, including pump case, interior pump, flow assembly and at least two hydraulic pump,
Described at least two hydraulic pump is each attached on flow assembly, and centered by flow assembly uniformly
Distribution, described flow assembly bias is located in interior pump, and described interior pump is located in pump case and can be at pump
Rotate in shell；It is characterized in that: each hydraulic pump includes the pump housing, piston rod and sealing cyst membrane,
Described piston rod is coaxially located on the pump housing, described piston rod at pump body inner shaft to motion, described close
One end of encapsulated film is fixed on determines on the pump housing, and the other end of described sealing cyst membrane is fixed on piston rod
Going up and follow piston rod to move, described sealing cyst membrane, piston rod and the pump housing form the first cavity,
The described pump housing is fixed on interior pump, and the described pump housing is provided with runner, one end of described runner and the
One cavity connection, the other end of described runner connects with flow assembly, and described piston rod passes through ball
Head is fixed with interior pump.
2. plunger displacement pump as claimed in claim 1, it is characterised in that: described sealing cyst membrane is by rubber
Glue is made.
3. a plunger displacement pump, including pump case, bent axle and at least two being located in pump case
Hydraulic pump, described hydraulic pressure has just been evenly distributed in pump case, described at least two hydraulic pump all with
Bent axle connects；It is characterized in that: each hydraulic pump includes the pump housing, piston rod and sealing cyst membrane,
Described piston rod is coaxially located on the pump housing, described piston rod at pump body inner shaft to motion, described close
One end of encapsulated film is fixed on determines on the pump housing, and the other end of described sealing cyst membrane is fixed on piston rod
Going up and follow piston rod to move, described sealing cyst membrane, piston rod and the pump housing form the first cavity,
The described pump housing is fixed on interior pump, and the described pump housing is provided with runner, one end of described runner and the
One cavity connection, the other end of described runner and the flow passage on the pump housing, described piston rod leads to
Cross bulb to be connected with bent axle.
4. plunger displacement pump as claimed in claim 3, it is characterised in that: described sealing cyst membrane is by rubber
Glue is made.
5. a plunger displacement pump, including swash plate, valve plate and at least two hydraulic pump, described extremely
Few two hydraulic pumps are fixed on valve plate, and each hydraulic pump is connected with swash plate by bulb；Its
It is characterised by: described each hydraulic pump includes the pump housing, piston rod and sealing cyst membrane, described piston
Bar is coaxially located on the pump housing, described piston rod at pump body inner shaft to motion, described sealing cyst membrane
One end is fixed on determines on the pump housing, and the other end of described sealing cyst membrane is fixed on the piston rod and follows
Piston rod moves, and described sealing cyst membrane, piston rod and the pump housing form the first cavity, the described pump housing
Being fixed on interior pump, the described pump housing is provided with runner, and one end of described runner is with the first cavity even
Logical, the other end of described runner and the flow passage on valve plate, described piston rod passes through bulb
It is connected with swash plate.
6. plunger displacement pump as claimed in claim 5, it is characterised in that: described sealing cyst membrane is by rubber
Glue is made.
7. plunger displacement pump as claimed in claim 6, it is characterised in that: described plunger displacement pump also includes
Rotating shaft, described rotating shaft is coaxially located on valve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620474100.2U CN205638826U (en) | 2016-05-23 | 2016-05-23 | Plunger pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620474100.2U CN205638826U (en) | 2016-05-23 | 2016-05-23 | Plunger pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205638826U true CN205638826U (en) | 2016-10-12 |
Family
ID=57054580
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620474100.2U Expired - Fee Related CN205638826U (en) | 2016-05-23 | 2016-05-23 | Plunger pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205638826U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183322A (en) * | 2021-12-14 | 2022-03-15 | 诸暨市锐达机械有限公司 | Composite booster plunger pump |
-
2016
- 2016-05-23 CN CN201620474100.2U patent/CN205638826U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114183322A (en) * | 2021-12-14 | 2022-03-15 | 诸暨市锐达机械有限公司 | Composite booster plunger pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161012 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |