CN110174208A - A kind of absolute pressure measurement piston gage and its piston rotation driving device - Google Patents
A kind of absolute pressure measurement piston gage and its piston rotation driving device Download PDFInfo
- Publication number
- CN110174208A CN110174208A CN201910470460.3A CN201910470460A CN110174208A CN 110174208 A CN110174208 A CN 110174208A CN 201910470460 A CN201910470460 A CN 201910470460A CN 110174208 A CN110174208 A CN 110174208A
- Authority
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- China
- Prior art keywords
- piston
- gage
- absolute pressure
- synchronous pulley
- driving device
- Prior art date
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- 238000009530 blood pressure measurement Methods 0.000 title claims abstract description 26
- 230000001360 synchronised effect Effects 0.000 claims abstract description 58
- 238000003756 stirring Methods 0.000 claims abstract description 14
- 238000000227 grinding Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 11
- 238000002955 isolation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/16—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons
- G01L7/163—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of pistons construction or mounting of pistons
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/1004—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys
- H02K7/1008—Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys structurally associated with the machine rotor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of piston rotation driving devices for absolute pressure measurement piston gage, to be embedded in the piston reference end of piston gage and piston synchronous is driven to rotate, comprising: main body is equipped with piston reference end vacuum chamber in main body；The piston rod toggle mechanism being located in the vacuum chamber of piston reference end, piston rod toggle mechanism includes at least: from synchronous pulley and the shift fork being connected with from synchronous pulley, wherein: being connected from synchronous pulley by a synchronous belt with the main synchronous pulley of the driving device for absolute pressure piston gage, and under main synchronous pulley and linkage from synchronous pulley, makes piston rod toggle mechanism that can freely rotate in main body and stir piston by shift fork and rotate.The invention also discloses a kind of absolute pressure piston gages.Implement absolute pressure measurement piston gage and its piston rotation driving device of the invention, excessive torque is effectively prevent to destroy piston and piston cylinder, that realizes absolute pressure measurement piston gage vacuumizes efficiency and functional reliability.
Description
Technical field
The present invention relates to nuclear power fields of measurement more particularly to a kind of absolute pressure measurement piston gage and its piston rotation to drive
Dynamic device.
Background technique
The piston gage of absolute pressure measurement in the prior art, the mode of driving piston rotation mainly have following two
Kind, one is direct current generator to be directly installed in vacuum cavity, direct current generator directly drives piston drive mechanism to stir piston
Rotation；One is direct current generators to be extended to motor shaft in vacuum cavity by sealing, and piston drive mechanism is driven to stir work
Plug rotation.Because of the unreasonable structural design of above-mentioned absolute pressure piston gage, it is primarily present following technical problem:
1, it is placed in direct current generator in the mode for driving piston rotation in vacuum cavity, due to DC motor structure,
Gas inside direct current generator needs to undergo the long period that can just be extracted, and establishes the intracorporal condition of high vacuum degree of vacuum chamber every time
The vacuum pump work long period is needed, the efficiency of piston gage absolute pressure measurement is greatly reduced；
2, motor shaft is extended in vacuum cavity by sealing, piston drive mechanism is driven to stir the side of piston rotation
In formula, since sealing is dynamic sealing, with the increase for using the time, sealing element is prone to wear, sealing effect decline, or even is led
It causes sealing thoroughly to fail, vacuum can not be established in the vacuum chamber of piston reference end.Both the above mode is also directly by direct current
The output torque of motor is applied on piston, when piston because a variety of causes cannot rotate very well, when needing to clean, direct current generator compared with
Big torque may destroy piston, scrap piston gage piston rod and piston cylinder.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of absolute pressure measurement piston gage and its piston rotation
Driving device effectively prevent excessive torque to destroy piston and piston cylinder, realizes vacuumizing for absolute pressure measurement piston gage
Efficiency and functional reliability.
In order to solve the above-mentioned technical problem, the embodiment provides one kind measures piston gage for absolute pressure
Piston rotation driving device, to be embedded in the piston reference end of piston gage and piston synchronous driven to rotate, feature
It is, comprising: main body is equipped with piston reference end vacuum chamber in main body；The piston rod being located in the vacuum chamber of piston reference end is stirred
Mechanism, piston rod toggle mechanism include at least: from synchronous pulley and the shift fork being connected with from synchronous pulley, in which: from synchronous belt
Wheel is connected by a synchronous belt with the main synchronous pulley of the driving device for absolute pressure piston gage, and in main synchronous pulley
It is revolved under the linkage of synchronous pulley, making piston rod toggle mechanism that can freely rotate in main body and stir piston by shift fork
Turn.
Wherein, piston rod toggle mechanism further include: be installed in main intracorporal piston shifting shaft, be fastened on work from synchronous pulley
On the end face for filling in shifting shaft.
Wherein, piston shifting shaft is cylindrical shape, and top and bottom end are respectively equipped with the axle journal to install bearing；Shift fork is tight
It is solidly connected on the inner surface of piston shifting shaft.
Wherein, piston rod toggle mechanism and piston rod are coaxial.
Wherein, body outer surface mills a plane, and a rectangular hole is opened in the center of plane, and pad is equipped with rubber pad in hole
Piece.
Wherein, shift fork is a rigid polished rod；Shift fork surface grinding is to mirror surface, with to avoid additional to piston when stirring piston
Axial force.
In order to solve the above technical problems, the invention also discloses a kind of absolute pressure piston gages.
Absolute pressure measurement piston gage provided by the present invention and its piston rotation driving device have following beneficial to effect
Fruit: piston rotation driving device includes: main body, is equipped with piston reference end vacuum chamber in main body；It is located at piston reference end vacuum chamber
In piston rod toggle mechanism, piston rod toggle mechanism includes at least: from synchronous pulley and the shift fork being connected with from synchronous pulley,
Wherein: it is connected from synchronous pulley by a synchronous belt with the main synchronous pulley of the driving device for absolute pressure piston gage,
And under main synchronous pulley and linkage from synchronous pulley, piston rod toggle mechanism is made freely can to rotate and pass through in main body
Shift fork stirs piston rotation, and driving motor is without being extended to machine shaft in vacuum cavity and can be driven by dynamic sealing
It is dynamic；Effectively prevent excessive torque to destroy piston and piston cylinder, realize absolute pressure measurement piston gage vacuumize efficiency and
Functional reliability.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is front view structure of the embodiment of the present invention for the piston rotation driving device of absolute pressure measurement piston gage
Schematic diagram.
Fig. 2 is side view structure of the embodiment of the present invention for the piston rotation driving device of absolute pressure measurement piston gage
Schematic diagram.
Fig. 3 is plan structure of the embodiment of the present invention for the piston rotation driving device of absolute pressure measurement piston gage
Schematic diagram.
Fig. 4 is partial cross section of the embodiment of the present invention for the piston rotation driving device of absolute pressure measurement piston gage
Structural schematic diagram.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is the embodiment one of absolute pressure piston gage of the present invention in conjunction with shown in referring to figures 1-4.
Absolute pressure piston gage in the present embodiment, comprising: piston rotation drives main body 1 and to drive to piston rotation
The driving device 2 that dynamic main body 1 is driven.A rubber sheet gasket 3 is placed between driving device 2 and piston rotation driving main body 1.
Driving device 2 is pressed in piston rotation driving main body 1 by four screw T.
Piston rotation drives main body 1 to be embedded in the piston reference end of piston gage and piston synchronous is driven to rotate,
Include: main body 11, is equipped with piston reference end vacuum chamber C in main body 11；The piston rod being located in the vacuum chamber C of piston reference end is stirred
Mechanism, piston rod toggle mechanism include at least: from synchronous pulley 121 and the shift fork 122 being connected with from synchronous pulley 121, in which:
Pass through 232 phase of main synchronous pulley of a synchronous belt 27 and the driving device for absolute pressure piston gage from synchronous pulley 121
Even, and in main synchronous pulley 232 and under the linkage of synchronous pulley 121, make piston rod toggle mechanism can be freely in main body 11
Interior rotation simultaneously stirs piston rotation by shift fork 122.
When it is implemented, main body 11 is the component that piston rotation driving device 1 is embedded in piston gage, it is cylinder knot
Structure is installed on the reference end of piston gage and coaxial with piston rod, piston rod toggle mechanism is mounted on using metal material
The inside of main body 11 and also coaxial with piston rod, piston rod toggle mechanism can rotate freely in main body 11 and by above
Shift fork 122 stir piston rotation.
11 appearance facing cut of main body, one plane, planar central position open a rectangular hole, a rubber sheet gasket 3 are padded in plane,
Driving fixing piece 2 is pressed on sheet rubber 3, and on the main body 11 by four screw T fastenings.
Further, piston rod toggle mechanism is mounted in main body 11, piston rod toggle mechanism further include: be installed in main body
Piston shifting shaft 123 in 11.Piston shifting shaft 123 is cylindrical shape, and there are the axis of installation bearing for the upper and lower both sides in outer surface
Neck, inner surface one end are milled with a groove, are drilled with a hole on one side close to groove, and fork is tightly pressed into the hole,
There are three the screw holes divided equally for other end, to install from synchronous pulley.
Shift fork 122 is a rigid polished rod, to the bearing touch installed on piston rod, stir piston rotation, shift fork 122
Surface grinding is to mirror surface, and reducing influences the axially loaded of piston when stirring piston, driven 121 central hollow of synchronous pulley,
There are three the through holes divided equally on end face, driven synchronous pulley 121 to be fastened on the end face of piston shifting shaft 123.
When specific assembly, when piston rod toggle mechanism is installed in main body 11, two bearings 124,125 are mounted on first
On the axle journal of piston shifting shaft 123, they is slidably pushed into main body 11 to stop collar, hole is then placed into gear with retaining ring
In ring recess, piston rod toggle mechanism is packed into main body 11, it will be tight from synchronous pulley 121 with three screws from the other end of main body 11
Gu on the end face of piston shifting shaft 123.
Driving device 2 includes: the driving fixing piece 21 to be connected in piston rotation driving main body 1, drives fixing piece
First inner chamber A is equipped in 21；The isolation cover 22 being connected on driving fixing piece 21, has second inner chamber B in isolation cover 22, and second
Magnetic drive driven subassembly is fastened in the B of inner cavity, Magnetic drive driven subassembly includes: driven shaft 231 and is connected on driven shaft 231
The outside of main synchronous pulley 232, isolation cover 22 is equipped with Magnetic drive driving component；The concentric tube 25 being fastened on isolation cover 22；Tightly
Gu the driving motor 26 on concentric tube 25, driving motor 26 includes: shaft 261 and motor installation attachment 260, and Magnetic drive is actively
Component is fastenedly connected with shaft 261, motor install attachment 260 be a stainless steel disk, outer diameter, which is got on the bus, screw thread, have centre bore and
With the screw hole uniformly distributed around centre bore, screw hole is distributed, direct current consistent with the motor installing hole of 26 shaft of direct current generator, 261 one end end face
Motor 261 is fastened on motor installation attachment 260.
Wherein: the Magnetic drive driven subassembly of 22 inside of Magnetic drive driving component and isolation cover in 22 outside of isolation cover passes through magnetic
Pole couples interaction, and shaft 261 couples interaction by magnetic pole and drives the driven shaft 231 of Magnetic drive driven subassembly and master same
Belt wheel 232 is walked to rotate.
Preferably, first inner chamber A, second inner chamber B and piston reference end vacuum chamber C are connected, and are isolated from the outside.So
The effect of setting is: driving motor 26 is in the piston reference of first inner chamber A, second inner chamber B and piston rotation driving main body 1
The outside for holding vacuum chamber C does not influence the speed vacuumized in the vacuum chamber of piston rotation driving main body 1, also avoids to drive
The shaft 261 of motor 26 extends in the piston reference end vacuum chamber C of piston rotation driving main body 1, influences piston rotation driving
Sealing effect in the piston reference end vacuum chamber C of main body 1.
Absolute pressure of the invention measures piston gage and its piston rotation driving device in the specific implementation, direct current generator
26 are tightened in one end of concentric tube 25 together with outer rotor 241, and the other end of concentric tube 25 is tightened on separation sleeve 22, Magnetic drive from
Motivation structure is mounted in separation sleeve 22 together with the internal rotor 233 for being mounted on its one end, the inner magnet 234 on internal rotor 233 and outer
Outer magnet 242 on rotor 241 is in same level height and intercouples across separation sleeve 22, and separation sleeve 22 is fixed by screw
On driving fixing piece 21, the other end of Magnetic drive driven shaft 231 is equipped with a main synchronous pulley 232, main synchronous pulley 232
With the slave synchronous pulley 121 that is mounted on piston rod toggle mechanism in same level, two synchronous pulleys 232,121 are by one
Synchronous belt 27 connects.
Driving motor 26 outside piston reference end vacuum chamber C in piston rotation driving main body 1 drives piston rotation to drive
Rotating mechanism in the piston reference end vacuum chamber C of dynamic main body 1 stirs piston rotation, and it is true that driving motor is arranged in piston reference end
Outside cavity C, driving motor is without being extended to machine shaft in vacuum cavity and can be driven by dynamic sealing；It effectively prevent
Excessive torque destroys piston and piston cylinder, and that realizes absolute pressure measurement piston gage vacuumizes efficiency and functional reliability.
Implement absolute pressure measurement piston gage and its piston rotation driving device of the invention, has following beneficial to effect
Fruit: piston rotation driving device includes: main body, is equipped with piston reference end vacuum chamber in main body；It is located at piston reference end vacuum chamber
In piston rod toggle mechanism, piston rod toggle mechanism includes at least: from synchronous pulley and the shift fork being connected with from synchronous pulley,
Wherein: it is connected from synchronous pulley by a synchronous belt with the main synchronous pulley of the driving device for absolute pressure piston gage,
And under main synchronous pulley and linkage from synchronous pulley, piston rod toggle mechanism is made freely can to rotate and pass through in main body
Shift fork stirs piston rotation, and driving motor is without being extended to machine shaft in vacuum cavity and can be driven by dynamic sealing
It is dynamic；Effectively prevent excessive torque to destroy piston and piston cylinder, realize absolute pressure measurement piston gage vacuumize efficiency and
Functional reliability.
Claims (7)
1. a kind of piston rotation driving device for absolute pressure measurement piston gage, to be embedded in the work of piston gage
Plug reference end simultaneously drives piston synchronous to rotate characterized by comprising
Main body is equipped with piston reference end vacuum chamber in the main body；
The piston rod toggle mechanism being located in the vacuum chamber of the piston reference end, the piston rod toggle mechanism include at least: from
Synchronous pulley and with the shift fork being connected from synchronous pulley, in which:
It is described to pass through the main synchronous pulley phase of a synchronous belt and the driving device for absolute pressure piston gage from synchronous pulley
Even, and under the main synchronous pulley and the linkage from synchronous pulley, make the piston rod toggle mechanism that can freely exist
It is rotated in the main body and piston rotation is stirred by the shift fork.
2. the piston rotation driving device for absolute pressure measurement piston gage as described in claim 1, which is characterized in that
The piston rod toggle mechanism further include:
It is installed in the intracorporal piston shifting shaft of the master, it is described from the end face that synchronous pulley is fastened on the piston shifting shaft.
3. the piston rotation driving device for absolute pressure measurement piston gage as claimed in claim 2, which is characterized in that
The piston shifting shaft is cylindrical shape, and top and bottom end are respectively equipped with the axle journal to install bearing；
The shift fork is fastenedly connected on the inner surface of the piston shifting shaft.
4. the piston rotation driving device for absolute pressure measurement piston gage as described in claim 1, which is characterized in that
Piston rod toggle mechanism and piston rod are coaxial.
5. the piston rotation driving device for absolute pressure measurement piston gage as described in claim 1, which is characterized in that
The body outer surface mills a plane, and a rectangular hole is opened in the center of plane, and pad is equipped with rubber sheet gasket in hole.
6. the piston rotation driving device for absolute pressure measurement piston gage as described in claim 1, which is characterized in that
The shift fork is a rigid polished rod；
The shift fork surface grinding adds axial force to piston to mirror surface, with to avoid when stirring piston.
7. a kind of absolute pressure piston gage, which is characterized in that the absolute pressure piston gage includes that claim 1-6 such as appoints
Piston rotation driving device described in one for absolute pressure measurement piston gage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910470460.3A CN110174208A (en) | 2019-05-31 | 2019-05-31 | A kind of absolute pressure measurement piston gage and its piston rotation driving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910470460.3A CN110174208A (en) | 2019-05-31 | 2019-05-31 | A kind of absolute pressure measurement piston gage and its piston rotation driving device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110174208A true CN110174208A (en) | 2019-08-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910470460.3A Pending CN110174208A (en) | 2019-05-31 | 2019-05-31 | A kind of absolute pressure measurement piston gage and its piston rotation driving device |
Country Status (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113899490A (en) * | 2021-09-07 | 2022-01-07 | 杭州石林自动化工程有限公司 | Full-automatic piston pressure gauge of abrasionproof decreases absolute pressure |
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