CN208348199U - A kind of inbuilt displacement sensor formula oil cylinder - Google Patents
A kind of inbuilt displacement sensor formula oil cylinder Download PDFInfo
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- CN208348199U CN208348199U CN201820656543.2U CN201820656543U CN208348199U CN 208348199 U CN208348199 U CN 208348199U CN 201820656543 U CN201820656543 U CN 201820656543U CN 208348199 U CN208348199 U CN 208348199U
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- piston
- displacement sensor
- rod
- piston rod
- cavity
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Abstract
The utility model relates to a kind of inbuilt displacement sensor formula oil cylinders, and wherein displacement sensor is placed in rodless cavity, and the induction rod on displacement sensor runs through rodless cavity and rod chamber, and part induction rod body is located in catheter lumen body；Induction rod outer diameter is less than diameter in catheter lumen body, enables hydraulic oil by the cavity gap between induction rod and conduit, into catheter lumen body；Be equipped with oilhole on cylinder barrel and guide sleeve, hydraulic oil from cylinder barrel oilhole or guide sleeve upper oil hole enter cavity, the intracorporal hydraulic oil of chamber pushes piston component axially to move back and forth, and piston component drives the movement of vernier magnet ring；It is transferred to displacement sensor by the motor message of vernier magnet ring, obtains the move distance of piston component.The present apparatus is highly-safe, and the processing is simple for piston rod, conduit stress can Free Transform, overcome existing sensor installation when there are the shortcomings that.
Description
Technical field
The utility model relates to oil cylinder technical fields, and in particular to a kind of inbuilt displacement sensor formula oil cylinder.
Background technique
Currently, on oil cylinder install displacement sensor generally use it is exposed, i.e., by displacement sensor integral installation in oil
Sensor, i.e., be mounted on cylinder bottom, induction rod is put in inside oil cylinder, and in piston by cylinder outside or the built-in installation in center
It is mobile inside bar.
But above two mounting means all have the defects that it is certain.
For exposed mounting means.Firstly, this mounting means lacks protective device, it is easy to be collided by other objects,
It damages；Again, exposed mounting means causes oil cylinder installation volume to become larger, and installs in the lesser space in space limited；
Finally, sudden and violent leakage outside, is easily contaminated, influences sensor measurement accuracy displacement sensor for a long time.
For mounting means built in center.It is the oil cylinder of solid stock firstly, for piston rod, is processed in piston rod thin
Long hole, technique is more difficult, costly, and straightness and roughness are difficult to ensure, there is certain shadow to the service life of sensor
It rings；Secondly, cavity volume is excessive in the oil cylinder that some bar diameters are bigger, piston rod is hollow, full of excessive hydraulic
Oil is also easy to produce impact in the rodless cavity course of work；Finally, for the oil for welding conduit and stroke length in hollow piston rod
Cylinder, the piston body of rod and conduit are easy to produce stress in the welding process, in external environmental change, cause conduit stress deformation,
Conduit straightness is influenced, and then sensor sensing bar is had an impact.
Summary of the invention
The technical issues of the utility model solves the disadvantage that is: in order to overcome existing sensor to exist when installing, this is practical
Novel to be designed to provide a kind of highly-safe, the processing is simple for piston rod, conduit stress is capable of a kind of installation of Free Transform
The oil cylinder of displacement sensor.
The technical solution of the utility model is: a kind of inbuilt displacement sensor formula oil cylinder, including cylinder barrel 9, guide sleeve 3, work
Plug assembly, vernier magnet ring 8, conduit 5 and displacement sensor 10；The cylinder barrel 9 and guide sleeve 3 are coaxial be connected；Piston component position
In in 3 cavity of guide sleeve, piston component is equipped with vernier magnet ring 8；It is placed in piston rod cavity C inside conduit 5 for cavity body,
5 axis of conduit overlaps with 9 axis of cylinder barrel, 3 axis of guide sleeve；Institute's displacement sensors 10 are placed in 9 intracavity bottom of cylinder barrel, position
Induction rod on displacement sensor 10 runs through rodless cavity, and part induction club shaft is located in conduit cavity D；5 internal diameter of conduit is not small
In the aperture of the through-hole on the piston rod tail 7 that 10 induction rod of displacement sensor passes through, avoid transporting in piston component to cylinder bottom direction
During row, displacement sensor is broken due to end of conduit is encountered in tenesmus because of displacement sensor induction rod end；Cylinder barrel 9 and guide sleeve
Be equipped with oilhole on 3, hydraulic oil from cylinder barrel 9 oilhole or 3 upper oil hole of guide sleeve enter cavity, the intracorporal hydraulic oil of chamber pushes
Piston component axially moves back and forth, and piston component drives vernier magnet ring 8 to move；It is transferred to by the motor message of vernier magnet ring 8
Displacement sensor 10 obtains the move distance of piston component.
The further technical solution of the utility model is: the piston component includes piston rod head 2, the piston body of rod 4, piston
Bar tail 7 and piston 6；The piston rod head 2, the piston body of rod 4, piston rod tail 7 are sequentially coaxially connected, and are empty inside the piston body of rod 4
Cavity；Piston rod head 2 and the equal axis direction of piston rod tail 7 are equipped with through-hole, axis and the 3 axis phase mutual respect of the piston body of rod of through-hole
It closes；The second level stepped cylindrical body that piston 6 starts for both ends, and bigger diameter end outer wall and 9 inner wall clearance fit of cylinder barrel, 6 inner wall of piston
It is connected with 7 outer wall of piston rod tail, 3 wall coaxial of the piston body of rod.
The further technical solution of the utility model is: the vernier magnet ring 8 is one, is located on piston rod tail 7, axis
It is overlapped with piston rod tail 7, and is connected with piston rod tail 7.
The further technical solution of the utility model is: the piston rod head 2 is equipped with pilot hole close to one end of conduit 5,
Guiding axially bored line is overlapped with 2 axis of piston rod head；Pilot hole open end is equipped with chamfering on piston rod head 2；Conduit 5 is placed in piston rod
4 inner cavity of body, 5 outer diameter of conduit is less than pilot hole internal diameter, and conduit 5 is not contacted with pilot hole bottom hole.
The further technical solution of the utility model is: the barrel of the cylinder barrel 9 is equipped with hydraulic fluid port B；Oilhole B passes through pipe
In road connection perforation to rodless cavity F；Hydraulic oil enters F in rodless cavity by hydraulic fluid port B when work, and passes through induction rod and conduit 5
Between cavity gap be full of catheter lumen D, push piston 6 to be axially moved to one end close to guide sleeve 3, to drive entire living
Plug assembly and vernier magnet ring 8 are axially moved, while the hydraulic oil in rod chamber E is discharged from hydraulic fluid port A.
The further technical solution of the utility model is: the side wall of the guide sleeve 3 is equipped with hydraulic fluid port A；Hydraulic fluid port A passes through pipe
Road perforation is connected in rod chamber E；Hydraulic oil is entered in rod chamber E by hydraulic fluid port A when work, and hydraulic fluid pressure pushes piston 6
It is axially moved to far from 3 direction of guide sleeve, to drive entire piston component and vernier magnet ring 8 to be axially moved, while rodless cavity F
Interior hydraulic oil is discharged from hydraulic fluid port B.
The further technical solution of the utility model is: further including spiracle, the spiracle is located at outside piston rod head 2
Side, axis are overlapped with 2 axis of piston rod head, for guaranteeing that the pressure of piston rod cavity C is equal to atmospheric pressure after welding.
The further technical solution of the utility model is: it further include spiracle plug 1, the spiracle plug 1, using mark
Pseudotype sealant cushion is conducive to exchange, for blocking spiracle, sundries is avoided to enter piston rod cavity body.
The further technical solution of the utility model is: being sealed between piston 6 and cylinder barrel 9 using sealing structure.
Invention effect is especially reduction of piston using the difficulty of processing for reducing the oil cylinder components after the utility model
The difficulty of processing of bar, reduces processing cost, ensure that the process reliability of components, and the machine of improving adds efficiency；And in reality
In use process, the hydraulic shock in rodless cavity reduces, and reduces piston rod internal stress, and extend displacement sensor uses the longevity
Life.
Detailed description of the invention
Fig. 1 is the main view of the utility model installation displacement sensor piston rod oil inlet oil extraction oil cylinder.
In Fig. 1,1- spiracle plug；2- piston rod head；3- guide sleeve；The 4- piston body of rod；5- conduit；6- piston；7- is living
Stopper rod tail；8- vernier magnet ring；9-- cylinder barrel；10- displacement sensor；11- sealing structure
Specific embodiment
A kind of inbuilt displacement sensor formula oil cylinder of the utility model, including cylinder barrel 9, guide sleeve 3, piston component, vernier magnetic
Ring 8, conduit 5 and displacement sensor 10；Piston component includes piston and piston rod, piston rod by piston rod head 2, the piston body of rod 4,
Piston rod tail 7 is welded, and piston rod uses welding structure, avoids and processes elongated hole on the piston rod, this, simplifies
Process ensure that the feasibility of processing；Cylinder barrel 9 and guide sleeve 3 are coaxial be connected；Piston component passes through guide sleeve 3 and cylinder
In the cavity of cylinder 9；Piston component is equipped with vernier magnet ring 8, is packed in the end of piston rod tail 8；There is design on the inside of piston rod head 2
Catheter directed hole, catheter directed bore dia be slightly larger than catheter outer diameter, and guide apertures and the outer rounded ends of conduit 5 processing 15 ° or
20 ° of chamferings, convenient 5 end of conduit in welding piston bar are inserted into the catheter directed hole on piston rod head 2；
2 end of piston rod head is provided with a spiracle, communicates with catheter directed hole, and outside design has spiracle plug 1, screw thread
Connection.Because when diameter of piston rod is larger, piston rod cavity C volume is larger, after welding, piston rod inner cavity generates big
The higher gas of amount temperature, after cooling, gas pressure intensity reduce, and can have an impact to piston rod.In welding, piston rod cavity
Gas air-breathing, exhaust can be carried out by spiracle, after the completion of to be assembled, then blocked with spiracle plug 1, kept away in this way
Exempt from gas pressure intensity and atmospheric pressure in rod end chamber body and generate pressure difference, influences piston rod intensity, exhaled with the closure of spiracle plug 1
Sucker also avoids sundries from entering piston rod cavity body.
Conduit 5 is a cavity body, and axis overlaps with 9 axis of cylinder barrel, 3 axis of guide sleeve；One end passes through piston rod
C insertion piston rod tail 7 in inner cavity is simultaneously welded as a whole in inside and piston rod tail 7；To guarantee leakproofness, conduit other end welding envelope
It is stifled, it avoids hydraulic oil and enters piston rod cavity C, reduce the hydraulic impact of rodless cavity F at work.Definition 9 inner cavity of cylinder barrel,
It is rodless cavity F, catheter lumen D and rodless cavity F perforation with cavity composed by cylinder bottom and piston component；Catheter length need to guarantee conduit
It is inserted into the catheter directed hole of piston rod head 2, allows for conduit 5 in this way and do not generate cantilever beam structure after the completion of welding,
When also needing to guarantee that conduit 5 is inserted into catheter directed hole simultaneously, catheter directed hole bottom and catheter tip have a certain distance, in this way
So that at work, under the effect of expanding with heat and contract with cold, conduit can freely extend, shorten, avoid because crossing freedom degree connection, and makes to lead
Pipe is in the longitudinal direction by pulling force or pressure.
One through-hole is arranged at 9 bottom of cylinder barrel, and displacement sensor 10, which is placed in, to be connected in the hole, the induction rod on displacement sensor 10
Through rodless cavity F, and part induction club shaft is located in catheter lumen D；Catheter diameter is passed through not less than displacement sensor induction rod
Piston rod tail 7 on through-hole diameter, avoid in piston component into cylinder bottom direction operational process, because of displacement sensor induction rod end
End tenesmus encounters conduit cavity wall and breaks displacement sensor.
It is provided with hydraulic fluid port A on guide sleeve 3, defines in cylinder barrel 9, the piston body of rod 4 is outer and is formed with guide sleeve 5 and piston body 6
Cavity be defined as rod chamber E, hydraulic fluid port A is penetrated through by pipeline and rod chamber；Oilhole B, oilhole B and nothing are provided on 9 end of cylinder barrel
Rod cavity F perforation；Hydraulic oil enters rod chamber E or rodless cavity F, cavity from 3 upper oil hole A of guide sleeve or from the oilhole B on cylinder barrel 9
Interior hydraulic oil will push piston component and axially move back and forth, and piston component drives vernier magnet ring 8 to move.
The sealing of O-ring or other forms can be used in static seal in the utility model, and common lip shape can be used in piston rod
It seals the perhaps sealing of other forms and the sealing of co-axial seal or other forms is used using guidance tape support piston and is adopted
It is supported with guidance tape, above-mentioned sealing element is economical and practical, and cost performance is high, is easy to purchase.
At work, hydraulic fluid port A is connected into pumping plant oil circuit with hydraulic fluid port B.When hydraulic oil is by hydraulic fluid port B, into oil cylinder rodless cavity
F is full of catheter lumen D, so that piston 6 be pushed to drive the components such as piston rod, overcomes resistance, to close to one end of guide sleeve 3 axial direction
Movement；Since 10 induction rod of displacement sensor is fixed together with cylinder bottom, vernier magnet ring 8 is fixed together with piston rod tail 7, produces
Raw relative motion, therefore sensor generates signal and is transferred to control system, just can determine that the displacement of piston；It is hydraulic in rod chamber E
Oil is discharged by hydraulic fluid port A.
When hydraulic oil is by hydraulic fluid port A, into rod chamber E, to push the components such as the drive piston rod of piston 6, resistance is overcome,
It is axially moved to one end far from guide sleeve 3；Since 10 induction rod of displacement sensor is fixed together with cylinder bottom, vernier magnet ring 10
It is fixed together with piston rod tail 7, generates relative motion, therefore sensor generates signal and is transferred to control system, just can determine that work
The displacement of plug, the hydraulic oil in rodless cavity F is discharged by hydraulic fluid port B at this time.
Claims (9)
1. a kind of inbuilt displacement sensor formula oil cylinder, including cylinder barrel (9), guide sleeve (3), piston component, vernier magnet ring (8), lead
Manage (5) and displacement sensor (10)；The cylinder barrel (9) and guide sleeve (3) are coaxial be connected；Piston component is located at guide sleeve (3)
In cavity, piston component is equipped with vernier magnet ring (8)；It is that cavity body is placed in piston rod cavity C inside conduit (5), conduit
(5) axis overlaps with cylinder barrel (9) axis, guide sleeve (3) axis；It is characterized in that, institute's displacement sensors (10) are placed in
Cylinder barrel (9) intracavity bottom, the induction rod on displacement sensor (10) runs through rodless cavity, and part induction club shaft is located in conduit
In chamber D；The aperture for the through-hole on piston rod tail (7) that conduit (5) internal diameter is passed through not less than displacement sensor (10) induction rod, keeps away
Exempt from piston component into cylinder bottom direction operational process, is broken due to end of conduit is encountered in tenesmus because of displacement sensor induction rod end
Displacement sensor；It is equipped with oilhole on cylinder barrel (9) and guide sleeve (3), hydraulic oil is from the oilhole or guide sleeve (3) on cylinder barrel (9)
Upper oil hole enters cavity, and the intracorporal hydraulic oil of chamber pushes piston component axially to move back and forth, and piston component drives vernier magnet ring (8)
Movement；Displacement sensor (10) are transferred to by the motor message of vernier magnet ring (8), obtain the move distance of piston component.
2. a kind of inbuilt displacement sensor formula oil cylinder as described in claim 1, which is characterized in that the piston component includes living
Stopper rod head (2), the piston body of rod (4), piston rod tail (7) and piston (6)；The piston rod head (2), the piston body of rod (4), piston rod
Tail (7) is sequentially coaxially connected, and is cavity body inside the piston body of rod (4)；Piston rod head (2) and piston rod tail (7) equal axis direction
Equipped with through-hole, axis and the piston body of rod (4) axis of through-hole overlap；Piston (6) is the second level stepped cylindrical of both ends beginning
Body, and bigger diameter end outer wall and cylinder barrel (9) inner wall clearance fit, piston (6) inner wall and piston rod tail (7) outer wall, the piston body of rod (4)
Wall coaxial is connected.
3. a kind of inbuilt displacement sensor formula oil cylinder as claimed in claim 1 or 2, which is characterized in that the vernier magnet ring (8)
It is one, is located on piston rod tail (7), axis is overlapped with piston rod tail (7), and is connected with piston rod tail (7).
4. a kind of inbuilt displacement sensor formula oil cylinder as claimed in claim 2, which is characterized in that the piston rod head (2) is leaned on
One end of nearly conduit (5) is equipped with pilot hole, and guiding axially bored line is overlapped with piston rod head (2) axis；Pilot hole on piston rod head (2)
Open end is equipped with chamfering；Conduit (5) is placed in the piston body of rod (4) inner cavity, and conduit (5) outer diameter is less than pilot hole internal diameter, and conduit (5)
It is not contacted with pilot hole bottom hole.
5. a kind of inbuilt displacement sensor formula oil cylinder as claimed in claim 1 or 2, which is characterized in that the cylinder of the cylinder barrel (9)
Wall is equipped with hydraulic fluid port B；Oilhole B passes through in pipeline connection perforation to rodless cavity F；Hydraulic oil enters nothing by hydraulic fluid port B when work
F in rod cavity, and catheter lumen D is full of by the cavity gap between induction rod and conduit (5), push piston (6) to close to guiding
The one end for covering (3) is axially moved, to drive entire piston component and vernier magnet ring (8) to be axially moved, while in rod chamber E
Hydraulic oil is discharged from hydraulic fluid port A.
6. a kind of inbuilt displacement sensor formula oil cylinder as claimed in claim 1 or 2, which is characterized in that the guide sleeve (3)
Side wall is equipped with hydraulic fluid port A；Hydraulic fluid port A is connected in rod chamber E by pipeline perforation；Hydraulic oil is entered by hydraulic fluid port A and is had when work
In rod cavity E, hydraulic fluid pressure pushes piston (6) to be axially moved to far from guide sleeve (3) direction, to drive entire piston component
It is axially moved with vernier magnet ring (8), while hydraulic oil is discharged from hydraulic fluid port B in rodless cavity F.
7. a kind of inbuilt displacement sensor formula oil cylinder as described in claim 1, which is characterized in that it further include spiracle, it is described
Spiracle is located on the outside of piston rod head (2), and axis is overlapped with piston rod head (2) axis, for guaranteeing in piston rod after welding
The pressure of chamber C is equal to atmospheric pressure.
8. a kind of inbuilt displacement sensor formula oil cylinder as described in claim 1, which is characterized in that further include spiracle plug
(1), the spiracle plug (1) is conducive to exchange using standard type sealant cushion, for blocking spiracle, avoid sundries into
Enter piston rod cavity body.
9. a kind of inbuilt displacement sensor formula oil cylinder as described in claim 1, which is characterized in that piston (6) and cylinder barrel (9) it
Between be sealed using sealing structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820656543.2U CN208348199U (en) | 2018-05-03 | 2018-05-03 | A kind of inbuilt displacement sensor formula oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820656543.2U CN208348199U (en) | 2018-05-03 | 2018-05-03 | A kind of inbuilt displacement sensor formula oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348199U true CN208348199U (en) | 2019-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820656543.2U Expired - Fee Related CN208348199U (en) | 2018-05-03 | 2018-05-03 | A kind of inbuilt displacement sensor formula oil cylinder |
Country Status (1)
| Country | Link |
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| CN (1) | CN208348199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488140A (en) * | 2018-05-03 | 2018-09-04 | 陕西昆仑机械装备制造有限责任公司 | A kind of inbuilt displacement sensor formula oil cylinder |
-
2018
- 2018-05-03 CN CN201820656543.2U patent/CN208348199U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108488140A (en) * | 2018-05-03 | 2018-09-04 | 陕西昆仑机械装备制造有限责任公司 | A kind of inbuilt displacement sensor formula oil cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190108 Termination date: 20210503 |