CN106762618A - The tension and compression force checking device and method of a kind of three screw pump driven screw - Google Patents
The tension and compression force checking device and method of a kind of three screw pump driven screw Download PDFInfo
- Publication number
- CN106762618A CN106762618A CN201710176548.5A CN201710176548A CN106762618A CN 106762618 A CN106762618 A CN 106762618A CN 201710176548 A CN201710176548 A CN 201710176548A CN 106762618 A CN106762618 A CN 106762618A
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- CN
- China
- Prior art keywords
- screw
- pressure sensor
- hole
- pull
- driven screw
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/04—Force
- F04C2270/044—Force axial
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/18—Pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/86—Detection
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
The invention belongs to the technical field of three screw pump detection, disclose a kind of tension and compression force checking device of three screw pump driven screw, including pull bar, one end of the pull bar is connected through the rear end cap of the pump housing with the top of driven screw, the other end is provided with bulb, the bulb coordinates rotation with ball pivot seat, the ball pivot seat is connected with one end of pull pressure sensor, the other end of the pull pressure sensor is arranged on fixed body, and the pull bar, ball pivot seat and the longitudinal center line of pull pressure sensor overlap with the longitudinal center line of driven screw.The invention also discloses a kind of pressure detection method of three screw pump driven screw.The present invention can accurately and in real time detect the axial push-pull power that driven screw is subject to during pump operation, and simple structure is practical.
Description
Technical field
The present invention relates to the technical field of three screw pump detection, more particularly to a kind of pressure of three screw pump driven screw
Detection means and method.
Background technology
Three screw pump has that flow trim, pressure fluctuation are small, have that suction capacity, noise are low, vibration is small, efficiency high, structure
Compact the advantages of, it is widely used in the fields such as ship, electric power, lathe, elevator, oil.Operation principle is mainly three intermeshings
Screw and bushing constitute the chamber of each sealing of sealing, medium can vertically be made from suction chamber to discharge chamber with annular seal space
Linear motion, effectively by outside medium excavationg pump.
In rotation process, driven screw is to be promoted to rotate by medium to three screw pump in theory, but due to processing essence
In startup and stopping, the various reasons such as play of screw rod, the interaction between screw rod can still be deposited the deficiency and pump of degree
So the axial compressive force of screw rod need to consider the pressure that the axial compressive force and screw rod of the generation of medium static pressure interact in the axial direction
Power.If the suffered axial compressive force of driven screw is excessive, the abrasion between screw rod and screw rod can be aggravated, so that amount of leakage is increased, shadow
Ring the volumetric efficiency of pump.
The content of the invention
The invention provides the tension and compression force checking device and method of a kind of three screw pump driven screw, three screw pump is solved
Driven screw pressure test problems.
The present invention can be achieved through the following technical solutions：
A kind of tension and compression force checking device of three screw pump driven screw, including pull bar, one end of the pull bar pass through the pump housing
Rear end cap be connected with the top of driven screw, the other end is provided with bulb, and the bulb coordinates with ball pivot seat and rotates, the ball
Free bearing is connected with one end of pull pressure sensor, and the other end of the pull pressure sensor is arranged on fixed body, the pull bar,
Ball pivot seat and the longitudinal center line of pull pressure sensor overlap with the longitudinal center line of driven screw.
Further, center line is provided with screwed hole vertically on the top of the driven screw, and one end of the pull bar is provided with
The external screw thread coordinated with the screw thread of screwed hole.
Further, one end of the ball pivot seat coordinates with bulb, and the other end is provided with externally threaded convex body, the convex body
The screw thread of external screw thread and pull pressure sensor one end coordinate.
Further, the pull pressure sensor is connected with data collecting instrument.
Further, the pull bar is sealed with the junction of the rear end cap of the pump housing by sealing ring.
Further, the junction of the pull bar and the rear end cap of the pump housing is provided with drag link sleeve, the drag link sleeve is enclosed within drawing
On bar, inner side is provided with step, and the step is used to place sealing ring, and the drag link sleeve edge is provided with the ear of protrusion, institute
State and be provided with ear set through hole, the rear end cap of the drag link sleeve and the pump housing is fixed by bolt through set through hole.
Further, the fixed body includes support set, the support set parcel pull pressure sensor, ball pivot seat, drag link sleeve
With the exposed pull bar outside the pump housing, one end of the support set is connected with the pump housing, and the other end is sensed by gland and pressure
The other end of device is connected, and the side wall of the support set is provided with lateral through aperture, and the lateral through aperture is used for pull pressure sensor
Data wire passes through.
Further, the two ends of the support set are provided with the ear of protrusion, and through hole, the pressure are provided with the ear
The edge of lid is provided with edge corresponding with through hole through hole, and the rear end cap of the pump housing is provided with pump housing hole corresponding with through hole,
The support set is fixed by bolt with the rear end cap and gland of the pump housing through through hole and corresponding pump housing hole and edge through hole.
Further, the gland is provided centrally with central through hole, and the other end and gland of the pull pressure sensor lead to
Bolt is crossed to be fixed through central through hole.
A kind of pressure detection method of three screw pump driven screw, comprises the following steps：
Step one, the pull bar is screwed through the rear end cap of the pump housing and the top of driven screw, installs close successively
Seal, drag link sleeve, ball pivot seat, pull pressure sensor, support set and gland, and the data wire of pull pressure sensor is passed through into side wall
Through hole, is then fixed by screw rod；
Step 2, data wire is connected with data collecting instrument；
Step 3, the pressure of three screw pump driven screw are delivered to pressure and sense by bulb and the ball pivot seat of pull bar
On device, pull pressure sensor shows the data of detection by data display instrument.
The present invention is beneficial to be had technical effect that：
Pull pressure sensor by being arranged on three screw pump driven screw axial centre of the invention, can be accurately and real-time
Detect the axial push-pull power that driven screw is subject to during pump operation, help to design the flat of driven screw axial compressive force
Weighing apparatus device, to eliminate the abrasion between screw rod, increases the volumetric efficiency of pump, and simple structure, with low cost, it is practical and
It is easy to spread to use.
Brief description of the drawings
Fig. 1 is general structure schematic diagram of the invention；
Fig. 2 is the axial sectional view of general structure of the invention；
Fig. 3 is the enlarged drawing of the mark A in Fig. 2 of the invention；
Wherein, 1- pull bars, 2- rear end caps, 3- driven screws, 4- bulbs, 5- ball pivots seat, 6- pull pressure sensor, 7- data
Acquisition Instrument, 8- drag link sleeves, 9- sealing rings, 10- support sets, 11- glands, 12- lateral through aperture.
Specific embodiment
Below in conjunction with the accompanying drawings and preferred embodiment describes specific embodiment of the invention in detail.
As Figure 1-3, the invention provides a kind of tension and compression force checking device of three screw pump driven screw, including pull bar
1, one end of the pull bar 1 is connected through the rear end cap 2 of the pump housing with the top of driven screw 3, and the other end is provided with bulb 4, bulb 4
Coordinate with ball pivot seat 5 and rotate, ball pivot seat 5 is connected with one end of pull pressure sensor 6, the other end of the pull pressure sensor 6
It is arranged on fixed body, in the pull bar 1, ball pivot seat 5 and the longitudinal center line of pull pressure sensor 6 and the axial direction of driven screw 3
Heart line overlaps, and pull pressure sensor 6 is connected with data collecting instrument 7.
Center line is provided with screwed hole vertically on the top of driven screw 3, and one end of pull bar 1 is provided with the screw thread with screwed hole
The external screw thread of cooperation.
One end of ball pivot seat 5 coordinates with bulb 4, and the other end is provided with externally threaded convex body, the external screw thread of the convex body and
The screw thread of pull pressure sensor one end coordinates.
The junction of pull bar 1 and the rear end cap 2 of the pump housing is provided with drag link sleeve 8, the drag link sleeve 8 is sleeved on pull bar 1, interior
Side is provided with step, and the step is used to place sealing ring 9, and the sealing ring 9 is used to seal the combination of pull bar 1 and the pump housing 2, drag link sleeve
8 edge is provided with the ear of protrusion, and set through hole is provided with ear, and the rear end cap 2 of the drag link sleeve 8 and the pump housing passes through bolt
Fixed through set through hole.
Fixed body include support set 10, support set 10 parcel pull pressure sensor 6, ball pivot seat 5, drag link sleeve 8 and it is exposed
The pull bar 1 of the outside of the pump housing 2, one end of the support set 10 is connected with the rear end cap 2 of the pump housing, and the other end passes through gland 11 and pressure
The other end of sensor 6 is connected, and the side wall of the support set 8 is provided with lateral through aperture 12, and the lateral through aperture 12 is passed for pressure
The data wire of sensor 6 passes through.
The two ends of support set 10 are provided with the ear of protrusion, and through hole is provided with ear, are set at the edge of gland 11
Be equipped with edge corresponding with through hole through hole, the rear end cap 2 of the pump housing be provided with pump housing hole corresponding with through hole, the support set 8 with
The rear end cap 2 and gland 11 of the pump housing are fixed by bolt through through hole and corresponding pump housing hole and edge through hole.
Meanwhile, in the central through hole that is provided centrally with of gland 10, the other end and gland 10 of pull pressure sensor 6 pass through spiral shell
Bolt is fixed through central through hole.
Present invention also offers a kind of pressure detection method of three screw pump driven screw, including：
Step one, pull bar 1 is screwed through the rear end cap 2 of the pump housing and the top of driven screw 6, sealing is installed successively
Circle 9, drag link sleeve 8, ball pivot seat 5, pull pressure sensor 6, support set 10 and gland 11, and by the data wire of pull pressure sensor 6
Through lateral through aperture 12, then fixed by screw rod；
Step 2, data wire is connected with data collecting instrument 7；
Step 3, the pressure of three screw pump driven screw 3 are delivered to pressure by bulb 4 and the ball pivot seat 5 of pull bar 1
On sensor 6, pull pressure sensor 6 shows the data of detection by data display instrument 7.
Pull pressure sensor by being arranged on three screw pump driven screw axial centre of the invention, can be accurately and real-time
Detect the axial push-pull power that driven screw is subject to during pump operation, help to design the flat of driven screw axial compressive force
Weighing apparatus device, to eliminate the abrasion between screw rod, increases the volumetric efficiency of pump, and simple structure, with low cost, it is practical and
It is easy to spread to use.
Although the foregoing describing specific embodiment of the invention, it will be appreciated by those of skill in the art that these
It is merely illustrative of, on the premise of without departing substantially from principle of the invention and essence, various changes can be made to these implementation methods
More or modification, therefore, protection scope of the present invention is defined by the appended claims.
Claims (10)
1. a kind of tension and compression force checking device of three screw pump driven screw, it is characterised in that：Including pull bar, one end of the pull bar
The top of rear end cap and driven screw through the pump housing is connected, and the other end is provided with bulb, and the bulb turns with ball pivot seat cooperation
Dynamic, the ball pivot seat is connected with one end of pull pressure sensor, and the other end of the pull pressure sensor is arranged on fixed body,
The pull bar, ball pivot seat and the longitudinal center line of pull pressure sensor overlap with the longitudinal center line of driven screw.
2. the tension and compression force checking device of three screw pump driven screw according to claim 1, it is characterised in that：It is described driven
Center line is provided with screwed hole vertically on the top of screw rod, and one end of the pull bar is provided with the outer spiral shell coordinated with the screw thread of screwed hole
Line.
3. the tension and compression force checking device of three screw pump driven screw according to claim 1, it is characterised in that：The ball pivot
One end of seat coordinates with bulb, and the other end is provided with externally threaded convex body, the external screw thread and pull pressure sensor of the convex body
The screw thread of one end coordinates.
4. the tension and compression force checking device of three screw pump driven screw according to claim 1, it is characterised in that：The tension and compression
Force snesor is connected with data collecting instrument.
5. the tension and compression force checking device of three screw pump driven screw according to claim 1, it is characterised in that：The pull bar
Junction with the rear end cap of the pump housing is sealed by sealing ring.
6. the tension and compression force checking device of three screw pump driven screw according to claim 4, it is characterised in that：In the drawing
Bar is provided with drag link sleeve with the junction of the rear end cap of the pump housing, and the drag link sleeve is enclosed within pull bar, and inner side is provided with step, described
Step is used to place sealing ring, and the drag link sleeve edge is provided with the ear of protrusion, and set through hole is provided with the ear, described
The rear end cap of drag link sleeve and the pump housing is fixed by bolt through set through hole.
7. according to the detection means of one of claim 1-6 described three screw pump each chamber pressure, it is characterised in that：It is described
Fixed body includes support set, the support set parcel pull pressure sensor, ball pivot seat, drag link sleeve and the exposed drawing outside the pump housing
Bar, one end of the support set is connected with the pump housing, and the other end is connected by gland with the other end of pull pressure sensor, the branch
The side wall of support set is provided with lateral through aperture, and the data wire that the lateral through aperture is used for pull pressure sensor passes through.
8. the tension and compression force checking device of three screw pump driven screw according to claim 7, it is characterised in that：The support
The two ends of set are provided with the ear of protrusion, and through hole is provided with the ear, and the edge of the gland is provided with and through hole pair
The edge through hole answered, the rear end cap of the pump housing is provided with the rear end in pump housing hole corresponding with through hole, the support set and the pump housing
Lid and gland are fixed by bolt through through hole and corresponding pump housing hole and edge through hole.
9. the tension and compression force checking device of three screw pump driven screw according to claim 8, it is characterised in that：The gland
Be provided centrally with central through hole, the other end and gland of the pull pressure sensor are fixed by bolt through central through hole.
10. a kind of pressure detection method of three screw pump driven screw, it is characterised in that including：
Step one, the pull bar is screwed through the rear end cap of the pump housing and the top of driven screw, install successively sealing ring,
Drag link sleeve, ball pivot seat, pull pressure sensor, support set and gland, and the data wire of pull pressure sensor is passed through into lateral through aperture,
Then fixed by screw rod；
Step 2, data wire is connected with data collecting instrument；
Step 3, the pressure of three screw pump driven screw are delivered to pull pressure sensor by bulb and the ball pivot seat of pull bar
On, pull pressure sensor shows the data of detection by data display instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176548.5A CN106762618B (en) | 2017-03-23 | 2017-03-23 | A kind of the tension and compression force checking device and method of three screw pump driven screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710176548.5A CN106762618B (en) | 2017-03-23 | 2017-03-23 | A kind of the tension and compression force checking device and method of three screw pump driven screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106762618A true CN106762618A (en) | 2017-05-31 |
| CN106762618B CN106762618B (en) | 2018-12-07 |
Family
ID=58966546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710176548.5A Active CN106762618B (en) | 2017-03-23 | 2017-03-23 | A kind of the tension and compression force checking device and method of three screw pump driven screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106762618B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458128A (en) * | 2020-04-26 | 2020-07-28 | 宁波大榭开发区天正模具有限公司 | Detection equipment for service life of push rod of die casting die |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2314873A2 (en) * | 2009-10-23 | 2011-04-27 | Allweiler AG | Screw pump with a leakage sensor |
| CN102607837A (en) * | 2012-03-21 | 2012-07-25 | 西北工业大学 | Cage type linear electromechanical actuator performance test bed |
| CN202735180U (en) * | 2012-07-17 | 2013-02-13 | 深圳市特种设备安全检验研究院 | Steel wire micro friction and wear tester |
| CN205898433U (en) * | 2016-07-22 | 2017-01-18 | 湖南润伟智能机器有限公司 | Controller detection device |
| CN206636773U (en) * | 2017-03-23 | 2017-11-14 | 上海工程技术大学 | A kind of tension and compression force checking device of three screw pump driven screw |
-
2017
- 2017-03-23 CN CN201710176548.5A patent/CN106762618B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2314873A2 (en) * | 2009-10-23 | 2011-04-27 | Allweiler AG | Screw pump with a leakage sensor |
| CN102607837A (en) * | 2012-03-21 | 2012-07-25 | 西北工业大学 | Cage type linear electromechanical actuator performance test bed |
| CN202735180U (en) * | 2012-07-17 | 2013-02-13 | 深圳市特种设备安全检验研究院 | Steel wire micro friction and wear tester |
| CN205898433U (en) * | 2016-07-22 | 2017-01-18 | 湖南润伟智能机器有限公司 | Controller detection device |
| CN206636773U (en) * | 2017-03-23 | 2017-11-14 | 上海工程技术大学 | A kind of tension and compression force checking device of three screw pump driven screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111458128A (en) * | 2020-04-26 | 2020-07-28 | 宁波大榭开发区天正模具有限公司 | Detection equipment for service life of push rod of die casting die |
| CN111458128B (en) * | 2020-04-26 | 2022-02-11 | 宁波大榭开发区天正模具有限公司 | Detection equipment for service life of push rod of die casting die |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106762618B (en) | 2018-12-07 |
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