CN106593855B - A kind of plunger pump with leakage-proof structure - Google Patents
A kind of plunger pump with leakage-proof structure Download PDFInfo
- Publication number
- CN106593855B CN106593855B CN201710026822.0A CN201710026822A CN106593855B CN 106593855 B CN106593855 B CN 106593855B CN 201710026822 A CN201710026822 A CN 201710026822A CN 106593855 B CN106593855 B CN 106593855B
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- China
- Prior art keywords
- plunger
- plunger assembly
- driving mechanism
- seal chamber
- cavity
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Classifications
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- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/143—Sealing provided on the piston
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention discloses a kind of plunger pumps with leakage-proof structure, including holder, seal receptacle, cavity, driving mechanism, plunger assembly, seal chamber, water inlet pipe, water pumping pipe, two seal chambers, the first sealing ring, drain pipe, baffle ring, sealing shroud, the second sealing ring.The plunger pump with leakage-proof structure; plunger assembly is pulled to move back and forth to realize that liquid is entered from water inlet pipe in seal chamber inside seal chamber by driving mechanism; liquid is pumped out by water pumping pipe again; in pump liquid; after sealing shroud, which is worn, causes leakage; liquid can leak into the second seal chamber; and it is discharged by drain pipe; therefore liquid corrosion driving mechanism is avoided; reach and plays a protective role to driving mechanism; and it can also judge whether sealing shroud is worn by drain pipe drain, therefore convenient for replacing in time.
Description
Technical field
The present invention relates to a kind of plunger pump more particularly to a kind of plunger pumps with leakage-proof structure.
Background technology
The plunger pump of same type is mainly by stepper motor, lead screw, screw, holder, guide sleeve, pressing plate, sealing shroud, O at present
Type sealing ring, cavity, mounting plate, the parts such as plunger connector and plunger rod composition.Direct impulse is inputted when stepper motor is powered,
Stepper motor rotates forward, and is fastened on lead screw on motor shaft and rotates forward, drive screw and be attached thereto into plunger connector together and
Plunger rod moves downward, and plunger rod pulls out certain length from cavity, and cavity internal volume increases, and liquid just sucks cavity, to
Lower dead center is reached after the given stroke of lower movement, completes imbibition process.When inputting reverse impulse signal to stepper motor, stepping
Motor reversal, the lead screw reversion being fastened on motor shaft, drives screw and is attached thereto into plunger connector and plunger together
Bar moves upwards, and plunger rod is pushed into cavity, and cavity internal volume reduces, and pressure increases, and liquid is released cavity, plunger rod is transported up and down
Sealing function is completed with plunger rod cooperation by sealing shroud and O-ring seal when dynamic.And current plunger pump major defect has：Column
During stopper rod moves up and down, the fricting movement of plunger rod and sealing shroud will generate abrasion to sealing shroud, certain when may wear to
The leakproofness of sealing shroud will fail when degree, due to having pressure, liquid to be leaked out from cavity in cavity；Due to some examinations
Agent is easy crystallization, and crystalline particle is liable to stick on plunger rod, is easy to scratch sealing shroud when plunger rod moves up and down, cause quickly
Leakage, and not it is contemplated that；It is not easy to find after reagent leakage, burning out motor until flowing to motor internal corrosion cannot work, and cause whole
A plunger pump is scrapped, and use cost is high.In view of disadvantages described above, it is really necessary to design a kind of plunger pump with leakage-proof structure.
Invention content
Technical problem to be solved by the present invention lies in：A kind of plunger pump with leakage-proof structure is provided, to solve current column
The problem of plug pump be easy to cause liquid leakage.
In order to solve the above technical problems, the technical scheme is that：A kind of plunger pump with leakage-proof structure, including branch
Frame, seal receptacle, cavity, driving mechanism and plunger assembly, the seal receptacle and the driving mechanism are set on the holder, institute
Cavity is stated on the seal receptacle, seal chamber is equipped in the cavity, the cavity is equipped with water inlet pipe and water pumping pipe, described
Plunger assembly is set in the driving mechanism, and the plunger assembly part is stretched into the seal chamber, the driving mechanism driving
The plunger assembly moves back and forth in the seal chamber, and the seal receptacle is equipped with the second seal chamber, second seal chamber
Inner wall is equipped with the first sealing ring, and first sealing ring is placed on the plunger assembly, and second seal chamber side is equipped with row
Liquid pipe, second seal chamber are equipped with baffle ring, and the baffle ring is equipped with sealing shroud, and the sealing shroud is placed on the plunger assembly
On, the second sealing ring is equipped between the sealing shroud and the cavity.
Further, the driving mechanism includes stepper motor, lead screw and nut, and the stepper motor is set to the holder
On, the lead screw is set to the stepper motor, and the nut is placed on the lead screw, nut outside and the plunger assembly
Connection, the stepper motor drive the lead screw rotation so that the nut and the plunger assembly move up and down.
Further, the driving mechanism is telescopic cylinder, and the pull rod of the telescopic cylinder is connect with the plunger assembly, should
Telescopic cylinder driving stretches the plunger assembly and is slided in the seal chamber.
Further, the plunger assembly includes connector sleeve and plunger, and the connector sleeve is set in the driving mechanism, described
Plunger at one end is fixedly connected with the connector sleeve, and the other end stretches into the seal chamber.
Further, the connector sleeve is equipped with the column that is in the light, and optocoupler is additionally provided on the holder, the optocoupler can be arranged
Upper end or lower end, detection plunger is upper or the next.
Further, both sides are arranged with two guide grooves in the holder, are set on the plunger assembly there are two guide post.
Further, it is additionally provided with mounting plate on the holder.
Compared with prior art, the plunger pump with leakage-proof structure pulls plunger assembly in seal chamber by driving mechanism
Inside moves back and forth to realize that liquid is entered from water inlet pipe in seal chamber, then is pumped out liquid by water pumping pipe, in pump liquid
When, after sealing shroud, which is worn, causes leakage, liquid can be leaked into the second seal chamber, and is discharged by drain pipe, therefore be kept away
Liquid corrosion driving mechanism is exempted from, has reached and play a protective role to driving mechanism, and can also have been judged by drain pipe drain
Whether sealing shroud is worn, therefore convenient for replacing in time.
Description of the drawings
Fig. 1 is the sectional view of the plunger pump with leakage-proof structure；
Fig. 2 is the sectional view of the plunger pump with leakage-proof structure；
Fig. 3 is the sectional view of cavity described in the plunger pump with leakage-proof structure；
Following specific implementation mode will be further illustrated in conjunction with above-mentioned attached drawing.
Specific implementation mode
Hereinafter, a variety of specific details are elaborated, in order to provide the saturating of the concept to constituting described embodiment basis
Thorough understanding.However, it will be apparent to those skilled in the art that described embodiment can be in these no specific details
In some or all situations get off practice.In other cases, well-known processing step is not specifically described.
Embodiment 1：
As shown in Figure 1, Figure 3, a kind of plunger pump with leakage-proof structure, including holder 1, seal receptacle 2, cavity 3, driving mechanism
4 and plunger assembly 5, the seal receptacle 2 and the driving mechanism 4 are set on the holder 1, and the cavity 3 is set to described close
It seals on seat 2, seal chamber 6 is equipped in the cavity 3, the cavity 3 is equipped with water inlet pipe 7 and water pumping pipe 8, the plunger assembly 5
In the driving mechanism 4, and 5 part of plunger assembly is stretched into the seal chamber 6, and the driving mechanism 4 drives described
Plunger assembly 5 moves back and forth in the seal chamber 6, and the seal receptacle 2 is equipped with the second seal chamber 9, second seal chamber 9
Inner wall is equipped with the first sealing ring 10, and first sealing ring 10 is placed on the plunger assembly 5,9 side of the second seal chamber
Equipped with drain pipe 11, second seal chamber 9 is equipped with baffle ring 12, and the baffle ring 12 is equipped with sealing shroud 13, and the sealing shroud
13 are placed on the plunger assembly 5, and the second sealing ring 14 is equipped between the sealing shroud 13 and the cavity 3.This is with anti-drain junction
The plunger pump of structure pulls plunger assembly 5 to move back and forth to realize liquid from water inlet inside seal chamber 6 by driving mechanism 4
Pipe 7 enters in seal chamber 6, then is pumped out liquid by water pumping pipe 8, in pump liquid, when sealing shroud 13, the second sealing ring 14 by
After causing leakage to abrasion, liquid can be leaked into the second seal chamber 14, and is discharged by drain pipe 11, therefore avoid liquid corruption
Driving mechanism 4 is lost, reaches and plays a protective role to driving mechanism 4, and can also judge sealing shroud by 11 drain of drain pipe
13, the second sealing ring 14 is worn, therefore convenient for replacing in time.
Further, the driving mechanism 4 includes stepper motor 401, lead screw 402 and nut 403, the stepper motor 401
On the holder 1, the lead screw 402 is set to the stepper motor 401, and the nut 403 is placed on the lead screw 402,
Its 403 outside of nut is connect with the plunger assembly 5, and the stepper motor 401 drives the lead screw 402 to rotate so that institute
It states nut 403 and the plunger assembly 5 moves.
Further, the plunger assembly 5 includes connector sleeve 501 and plunger 502, and the connector sleeve 501 is set to the driving
In mechanism 4,502 one end of the plunger is fixedly connected with the connector sleeve 501, and the other end stretches into the seal chamber 6.Therefore,
Plunger 502 is connect with driving mechanism 4 by connector sleeve 501 so that driving mechanism 4 can drive plunger 502 can be in seal chamber 6
It is reciprocal to move up and down.
Further, it is additionally provided with the column 503 that is in the light inside the connector sleeve 501, optocoupler 101 is additionally provided on the holder 1, is passed through
Optocoupler 101 detects the position of plunger 502.
Further, both sides are arranged with two guide grooves in the holder 1（It is not marked on figure）, set on the plunger assembly
There are two guide posts（It is not marked on figure）.Reach and guiding role is played to plunger assembly 5.
Further, it is additionally provided with mounting plate 102 on the holder 1.Therefore, it is convenient for holder to install.
Embodiment 2：
As shown in Figure 2 and Figure 3, a kind of plunger pump with leakage-proof structure, including holder 1, seal receptacle 2, cavity 3, driving mechanism
4 and plunger assembly 5, the seal receptacle 2 and the driving mechanism 4 are set on the holder 1, and the cavity 3 is set to described close
It seals on seat 2, seal chamber 6 is equipped in the cavity 3, the cavity 3 is equipped with water inlet pipe 7 and water pumping pipe 8, the plunger assembly 5
In the driving mechanism 4, and 5 part of plunger assembly is stretched into the seal chamber 6, and the driving mechanism 4 drives described
Plunger assembly 5 moves back and forth in the seal chamber 6, and the seal receptacle 2 is equipped with the second seal chamber 9, second seal chamber 9
Inner wall is equipped with the first sealing ring 10, and first sealing ring 10 is placed on the plunger assembly 5,9 side of the second seal chamber
Equipped with drain pipe 11, second seal chamber 9 is equipped with baffle ring 12, and the baffle ring 12 is equipped with sealing shroud 13, and the sealing shroud
13 are placed on the plunger assembly 5, and the second sealing ring 14 is equipped between the sealing shroud 13 and the cavity 3.This is with anti-drain junction
The plunger pump of structure pulls plunger assembly 5 to move back and forth to realize liquid from water inlet inside seal chamber 6 by driving mechanism 4
Pipe 7 enters in seal chamber 6, then is pumped out liquid by water pumping pipe 8, in pump liquid, causes to let out when sealing shroud 13 is worn
After leakage, liquid can be leaked into the second seal chamber 9, and is discharged by drain pipe 11, therefore avoid liquid corrosion driving mechanism 4,
Reach and play a protective role to driving mechanism 4, and can also judge sealing shroud 13, the second sealing ring by 11 drain of drain pipe
14 are worn, therefore convenient for replacing in time.
Further, the driving mechanism 4 is telescopic cylinder, and the pull rod of the telescopic cylinder is connect with the plunger assembly 5,
Telescopic cylinder driving stretches the plunger assembly 5 sliding in the seal chamber 6.
Further, the plunger assembly 5 includes connector sleeve 501 and plunger 502, and the connector sleeve 501 is set to the driving
In mechanism 4,502 one end of the plunger is fixedly connected with the connector sleeve 501, and the other end stretches into the seal chamber 6.Therefore,
Plunger 502 is connect with driving mechanism 4 by connector sleeve 502 so that driving mechanism 4 can drive plunger 502 can be in seal chamber 6
It pumps.
Further, it is additionally provided with the column 503 that is in the light inside the connector sleeve 501, optocoupler 101 is additionally provided on the holder 1, is passed through
Optocoupler 101 detects the position of plunger 502.
Further, both sides are arranged with two guide grooves in the holder 1（It is not marked on figure）, set on the plunger assembly
There are two guide posts（It is not marked on figure）.Reach and guiding role is played to plunger assembly 5.
Further, it is additionally provided with mounting plate 102 on the holder 1.Therefore, it is convenient for holder to install.
The present invention is not limited to above-mentioned specific embodiment, those skilled in the art from above-mentioned design,
Without performing creative labour, the various transformation made are within the scope of the present invention.
Claims (1)
1. a kind of plunger pump with leakage-proof structure, including holder, seal receptacle, cavity, driving mechanism and plunger assembly, the sealing
Seat and the driving mechanism are set on the holder, and the cavity is set on the seal receptacle, and sealing is equipped in the cavity
Chamber, the cavity are equipped with water inlet pipe and water pumping pipe, and the plunger assembly is set in the driving mechanism, and the plunger assembly portion
Divide and stretch into the seal chamber, the driving mechanism drives the plunger assembly to be moved back and forth in the seal chamber, feature
It is, the seal receptacle is equipped with the second seal chamber, and the second sealing cavity wall is equipped with the first sealing ring, and first sealing
For snare on the plunger assembly, second seal chamber side is equipped with drain pipe, and second seal chamber is equipped with baffle ring, institute
It states baffle ring and is equipped with sealing shroud, and the sealing shroud is placed on the plunger assembly, is equipped between the sealing shroud and the cavity
Second sealing ring；The driving mechanism includes stepper motor, lead screw and nut, and the stepper motor is set on the holder, institute
It states lead screw and is set to the stepper motor, the nut is placed on the lead screw, is connect with the plunger assembly on the outside of the nut,
The stepper motor drives the lead screw rotation so that the nut and the plunger assembly move up and down；
The driving mechanism is telescopic cylinder, and the pull rod of the telescopic cylinder is connect with the plunger assembly, the telescopic cylinder
Driving stretches the plunger assembly and is slided in the seal chamber；The plunger assembly includes connector sleeve and plunger, the connection
It is sheathed in the driving mechanism, the plunger at one end is fixedly connected with the connector sleeve, and the other end stretches into the seal chamber；
The connector sleeve is equipped with the column that is in the light, and optocoupler is additionally provided on the holder, and the optocoupler can be arranged in upper end or lower end, detection
Plunger is upper or the next；Both sides are arranged with two guide grooves in the holder, set on the plunger assembly there are two be oriented to
Column；It is additionally provided with mounting plate on the holder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026822.0A CN106593855B (en) | 2017-01-14 | 2017-01-14 | A kind of plunger pump with leakage-proof structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710026822.0A CN106593855B (en) | 2017-01-14 | 2017-01-14 | A kind of plunger pump with leakage-proof structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593855A CN106593855A (en) | 2017-04-26 |
| CN106593855B true CN106593855B (en) | 2018-10-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710026822.0A Active CN106593855B (en) | 2017-01-14 | 2017-01-14 | A kind of plunger pump with leakage-proof structure |
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| CN (1) | CN106593855B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108708839A (en) * | 2018-06-05 | 2018-10-26 | 北京凯因孚生物科技有限公司 | A kind of precision plunger pump |
| CN114135481A (en) * | 2020-12-18 | 2022-03-04 | 阿奥艾斯海洋工程(上海)有限公司 | Plunger protection lubricating device of plunger pump |
| CN114593209A (en) * | 2022-04-07 | 2022-06-07 | 北京天玛智控科技股份有限公司 | Isolation assembly |
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2017
- 2017-01-14 CN CN201710026822.0A patent/CN106593855B/en active Active
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| Publication number | Publication date |
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| CN106593855A (en) | 2017-04-26 |
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