CN202851519U - Oil cylinder piston rod with rod measuring function - Google Patents
Oil cylinder piston rod with rod measuring function Download PDFInfo
- Publication number
- CN202851519U CN202851519U CN 201220462311 CN201220462311U CN202851519U CN 202851519 U CN202851519 U CN 202851519U CN 201220462311 CN201220462311 CN 201220462311 CN 201220462311 U CN201220462311 U CN 201220462311U CN 202851519 U CN202851519 U CN 202851519U
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- piston rod
- oil cylinder
- cylinder piston
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Abstract
The utility model discloses an oil cylinder piston rod with a rod measuring function. The oil cylinder piston rod comprises an oil cylinder piston rod body. A plurality of annular grooves are formed in the oil cylinder piston rod at equal intervals along the length direction. Two kinds of materials with different magnetic conductivity are inlaid in the annular grooves in a spaced mode. One kind of materials of the two kinds of materials with the different magnetic conductivity are non-permeability magnetic materials. The non-permeability magnetic materials are made of copper. The permeability magnetic materials are made of 45# forged steel. According to the oil cylinder piston rod, the two kinds of materials with the different magnetic conductivity are divided, arranged and used on the piston rod at equal intervals, changes of open-close-open-close...of magnetic flux in unit time are detected and inducted by an electric magnet ring in the motion of the piston rod, displacement distance of an oil cylinder piston is obtained through electronic signal analysis and routine calculation, and purposes of route measurement and route control of an oil cylinder with a minor diameter are achieved.
Description
Technical field
The utility model relates to hydraulic equipment, particularly a kind of cylinder piston rod with the measuring staff function.
Background technique
The application of oil cylinder (oil hydraulic cylinder) is very extensive, but because the needs of some special producing equipment need oil cylinder can accurately measure stroke and control stroke.
The method that is used at present stroke measurment has the laser distance meter of employing, light to delete electronic ruler and displacement transducer according to use occasion, wherein because the displacement sensor precision is high, easy for installation, safeguard easily, the stroke of oil cylinder can amplify by the instrument demonstration, so be the device of present most widely used measurement oil cylinder stroke by testing signal.
And what be widely used in oil cylinder mainly is magnetostrictive displacement sensor, and this sensor mainly is comprised of measuring staff, electronics storehouse and the non-contacting magnet ring that is enclosed within on the measuring staff.It is by inserting the stainless steel measuring staff in the oil cylinder piston, produce initial pulse by electronic circuit in the electronics storehouse, this initial pulse is when measuring staff transmits, produce one along measuring staff side progressive rotating magnetic field, when the permanent-magnetic field of this magnetic field and magnet ring meets, produce Magnetostrictive effect, waveguide filament in the measuring staff is twisted, this twisting is installed in the institute's perception of electronics storehouse and converts corresponding current pulse to, calculate two time differences between the pulse by electronic circuit, namely accurately measure the displacement of tested oil cylinder piston.When running into small-sized oil cylinder, during the less oil cylinder of diameter of piston rod, piston rod just can't (axial centre) perforate in bar, be used for the insertion of measuring staff, therefore need to use device for sensing linear displacement caused by magnetostriction than small piston rod then be a great problem to diameter, for example, and the oil cylinder that uses in the online Burnisher apparatus of ORG in the finishing mill, use exactly diameter of phi 20 small piston rod oil cylinders, all be by import all the time.
Summary of the invention
The purpose of this utility model is to design a kind of cylinder piston rod with the measuring staff function, is used for stroke measurment and the Stroke Control of oil cylinder.
For achieving the above object, the technical solution of the utility model is:
A kind of cylinder piston rod with the measuring staff function comprises the cylinder piston rod body, equidistantly along its length on the described oil cylinder piston club body offers some annular grooves, and the interval is embedded two kinds of different magnetoconductivity materials in the groove.
Further, a kind of material in described two kinds of different magnetoconductivity materials is non-magnet_conductible material.
Again, described non-magnet_conductible material is copper.Described permeability magnetic material is the 45# forged steel.
By the research and analysis to magnetic principles, if find electromagnetic induction is changed, just can calculate by the unit time of this variation the piston rod movement stroke.Therefore the utility model with two kinds of different magnetoconductivity materials equidistant cut apart to arrange be applied on the piston rod, by inducing leading to → break → leading to → break of magnetic flux by the detection of electromagnetism ring in the piston rod movement ... variation within the unit time, just draw the oil cylinder piston shift length through electronic signal analysis and program calculating, reached the purpose of small bore piston rod oil cylinder stroke measurment and Stroke Control.
The beneficial effects of the utility model:
1, realized that the small bore piston rod oil cylinder carries stroke measurment and stroke control function;
2, realized that oil cylinder carries the stroke measurment function, reduced the production spare parts cost, direct economic benefit is considerable, and its application and promotional value are extensive.
Description of drawings
Fig. 1 is the utility model embodiment's stereogram.
Embodiment
Referring to Fig. 1, a kind of cylinder piston rod with the measuring staff function of the present utility model, comprise the cylinder piston rod body, equidistantly along its length on the described oil cylinder piston club body 1 offer some annular grooves 11, the interval is embedded two kinds of different magnetoconductivity materials 2,3 in the groove.
In the present embodiment, a kind of material in described two kinds of different magnetoconductivity materials 2,3 is non-magnet_conductible material.Described non-magnet_conductible material is copper.Described permeability magnetic material is the 45# forged steel.
The utility model with two kinds of different magnetoconductivity materials equidistant cut apart to arrange be applied on the piston rod, by inducing leading to → break → leading to → break of magnetic flux by the detection of electromagnetism ring in the piston rod movement ... variation within the unit time, just draw the oil cylinder piston shift length through electronic signal analysis and program calculating, reached the purpose of small bore piston rod oil cylinder stroke measurment and Stroke Control.
Claims (3)
1. the cylinder piston rod with the measuring staff function comprises the cylinder piston rod body, it is characterized in that, equidistantly along its length on the described oil cylinder piston club body offers some annular grooves, and the interval is embedded two kinds of different magnetoconductivity materials in the groove.
2. the cylinder piston rod with the measuring staff function as claimed in claim 1 is characterized in that, a kind of material in described two kinds of different magnetoconductivity materials is non-magnet_conductible material.
3. the cylinder piston rod with the measuring staff function as claimed in claim 2 is characterized in that, described non-magnet_conductible material is copper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462311 CN202851519U (en) | 2012-09-11 | 2012-09-11 | Oil cylinder piston rod with rod measuring function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220462311 CN202851519U (en) | 2012-09-11 | 2012-09-11 | Oil cylinder piston rod with rod measuring function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851519U true CN202851519U (en) | 2013-04-03 |
Family
ID=47982726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220462311 Expired - Fee Related CN202851519U (en) | 2012-09-11 | 2012-09-11 | Oil cylinder piston rod with rod measuring function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851519U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323727A (en) * | 2018-11-21 | 2019-02-12 | 邹明高 | The manufacturing method of metallic rod displacement speed sensor and metallic rod |
-
2012
- 2012-09-11 CN CN 201220462311 patent/CN202851519U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109323727A (en) * | 2018-11-21 | 2019-02-12 | 邹明高 | The manufacturing method of metallic rod displacement speed sensor and metallic rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20160911 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |