CN201363334Y - Oil cylinder equipped with position self-checking function - Google Patents
Oil cylinder equipped with position self-checking function Download PDFInfo
- Publication number
- CN201363334Y CN201363334Y CNU200920078751XU CN200920078751U CN201363334Y CN 201363334 Y CN201363334 Y CN 201363334Y CN U200920078751X U CNU200920078751X U CN U200920078751XU CN 200920078751 U CN200920078751 U CN 200920078751U CN 201363334 Y CN201363334 Y CN 201363334Y
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- China
- Prior art keywords
- oil cylinder
- cylinder
- piston
- magnetic induction
- checking function
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Abstract
The utility model discloses an oil cylinder equipped with position self-checking function, which comprises an oil cylinder base, an oil cylinder, a guide sleeve, at least one oil inlet valve, a piston rod and a piston, and is characterized in that the piston is provided with a magnetic ring; the outer wall of the oil cylinder is provided with at least one magnetic induction sensor; and each magnetic induction sensor is provided with two external circuit ports. As a length sensor which expands synchronously with the oil cylinder is not needed to be arranged inside or outside the oil cylinder, the oil cylinder has the advantages of simple and compact structure, high reliability, low cost, high checking precision, good universality and convenient installation and debugging.
Description
Technical field
The utility model relates to a kind of oil cylinder with position self-checking function.
Background technique
At present, the oil cylinder of band position self-checking function all adopt in oil cylinder or outside a linear transducer with the oil cylinder synchronization telescope is installed, according to the flexible length difference of oil cylinder, the signal value that linear transducer output is different, thereby the collapsing length of definite relevant oil cylinder, the oil cylinder of this position self-checking function, manufacture cost is high, the cylinder structure complexity, and reliability is low, the Installation and Debugging trouble is converted to corresponding oil cylinder collapsing length value difficulty with the linear transducer output signal value.
The model utility content
The purpose of this utility model is the above-mentioned deficiency at prior art, provide a kind of simple in structure, compact, reliability is high, with low cost, testing precision is high, versatility good, Installation and Debugging are easily with the oil cylinder of position self-checking function.
For achieving the above object, the oil cylinder of band position self-checking function of the present utility model, comprise cylinder pedestal, cylinder tube, guide sleeve, at least one oiling valve, piston rod and piston, it is characterized in that on piston, being provided with a magnet ring, at the cylinder tube outer wall at least one magnetic induction sensor is housed, each magnetic induction sensor is provided with two external circuits ports;
Working principle of the present utility model is: during use, two external circuits ports of each magnetic induction sensor are linked to each other with resistance or voltage check device; When piston rod drives piston and magnet ring moves, when moving to the central lines of the center line of magnet ring and magnetic induction sensor and its distance less than the parameter of design, the detected value of this resistance or voltage check device can accurately detect position of piston by infinitely great vanishing; Also two external circuits ports can be linked to each other with the input end of controller,, realize the automatic control of relevant device the source of two external circuits ports as control signal;
As further improvement of the utility model, described oiling valve is provided with two and be equilibrium valve, be installed on cylinder pedestal and the cylinder tube the linking to each other with each self-corresponding joint on being arranged at cylinder pedestal by pipeline respectively of two equilibrium valves respectively into and out of hydraulic fluid port; By two joints and two equilibrium valves, can realize being used in combination of stationarity that piston moves and a plurality of oil cylinders;
As further improvement of the utility model, it is disc that described piston rod is positioned at the outer termination of cylinder tube; Be convenient to being connected of piston rod and other parts;
In sum, the utility model since need be in oil cylinder or outside a linear transducer with the oil cylinder synchronization telescope is installed, have simple in structure, compact, reliability is high, with low cost, testing precision is high, versatility good, Installation and Debugging advantage easily.
Description of drawings
Fig. 1 is the utility model embodiment one a plan view.
Fig. 2 is the plan view of Fig. 1.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the utility model embodiment two a plan view.
Fig. 5 is the plan view of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
Embodiment one
By Fig. 1, Fig. 2 and shown in Figure 3, the oil cylinder of this embodiment's band position self-checking function, comprise cylinder pedestal 1, cylinder tube 2, guide sleeve 3, be installed on oiling valve 4 and oiling valve 5, piston rod 6 and piston 7 on cylinder pedestal 1 and the cylinder tube 2 respectively, on piston 7, be provided with a magnet ring 10, on cylinder tube 2 outer walls, upper magnetic induction sensor 11 and the next magnetic induction sensor 12 are housed by fitting seat, two magnetic induction sensors 11 and 12 are equipped with two external circuits ports, and it is disc that described piston rod 6 is positioned at cylinder tube 2 outer terminations;
The internal structure of above-mentioned upper magnetic induction sensor 11 or the next magnetic induction sensor 12 is a prior art, different types is arranged, wherein better simply a kind of employing is dry reed-pipe, be a kind of passive electronic switching element that the contact is arranged, have simple in structure, volume is urinated in advantages such as controls, and the elastic spring electroplax of two ironys is housed in the shell, and also irritating has a kind of inert gas that is metal rhodium; At ordinary times, two reeds in the shell separate, and an end of a reed is connected with the lighting outlet as an external circuits port, and an end of another reed is connected with the shell as another external circuits port; When the magnetic induction sensor, under the effect of magnetic field magnetic line, two reeds in the shell are magnetized and attract each other as magnetic substance, and the end that two reeds are adjacent will be pulled together, the circuit communication that two external circuits ports are connect; After outer magnetic force disappeared, two reeds were owing to the elasticity of itself is separated, and circuit has also just disconnected;
During use, two magnetic induction sensors 11 and two external circuits ports of 12 are linked to each other with multimeter (not shown) as detection device respectively; Move by two oiling valves 4,5 control piston bars, 6 drive pistons 7 and magnet ring 10, when the central lines of the center line that moves to magnet ring 10 and upper magnetic induction sensor 11 or the next magnetic induction sensor 12 and its distance during less than the parameter of design, detected resistance of multimeter or magnitude of voltage can accurately detect the position of piston 7 by infinitely great vanishing;
Embodiment two
By Fig. 4 and shown in Figure 5, the oil cylinder of this embodiment's band position self-checking function, comprise cylinder pedestal 1, cylinder tube 2, guide sleeve 3, be installed on upper equilibrium valve 13 and the next equilibrium valve 14 on cylinder pedestal 1 and the cylinder tube 2 respectively, piston rod 6 and piston 7, two equilibrium valves 13,14 filler opening links to each other with joint 8 on being arranged at cylinder pedestal 1 by pipeline respectively, two equilibrium valves 13,14 oil outlet links to each other with joint 9 on being arranged at cylinder pedestal 1 by pipeline respectively, on piston 7, be provided with a magnet ring 10, on cylinder tube 2 outer walls, upper magnetic induction sensor 11 and the next magnetic induction sensor 12 are housed by fitting seat, two magnetic induction sensors 11 and 12 are equipped with two external circuits ports, and described piston rod 6 is positioned at cylinder tube 2 outer terminations 15 and is disc;
This embodiment's oil cylinder not only can accurately detect the position of piston 7, adds attached controlling component, and hydraulic oil is by two joints 8 or 9, two equilibrium valves 13 or 14 and can realize being used in combination of stationarity that piston 7 moves and a plurality of oil cylinders.
Claims (3)
1. oil cylinder with position self-checking function, comprise cylinder pedestal, cylinder tube, guide sleeve, at least one oiling valve, piston rod and piston, it is characterized in that on piston, being provided with a magnet ring, at the cylinder tube outer wall at least one magnetic induction sensor is housed, each magnetic induction sensor is provided with two external circuits ports.
2. the oil cylinder of band position self-checking function as claimed in claim 1, it is characterized in that described oiling valve is provided with two and be equilibrium valve, be installed on cylinder pedestal and the cylinder tube the linking to each other with each self-corresponding joint on being arranged at cylinder pedestal by pipeline respectively of two equilibrium valves respectively into and out of hydraulic fluid port.
3. the oil cylinder of band position self-checking function as claimed in claim 1 or 2 is characterized in that it is disc that described piston rod is positioned at the outer termination of cylinder tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920078751XU CN201363334Y (en) | 2009-01-17 | 2009-01-17 | Oil cylinder equipped with position self-checking function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200920078751XU CN201363334Y (en) | 2009-01-17 | 2009-01-17 | Oil cylinder equipped with position self-checking function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201363334Y true CN201363334Y (en) | 2009-12-16 |
Family
ID=41473997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200920078751XU Expired - Lifetime CN201363334Y (en) | 2009-01-17 | 2009-01-17 | Oil cylinder equipped with position self-checking function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201363334Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704296A (en) * | 2016-12-22 | 2017-05-24 | 北汽福田汽车股份有限公司 | Balance valve mounting seat, hydraulic oil cylinder and engineering machinery |
| CN109530652A (en) * | 2018-11-08 | 2019-03-29 | 贵州华昌汽车电器有限公司 | A kind of plug-in type stainless steel sensor oil cylinder of die casting |
-
2009
- 2009-01-17 CN CNU200920078751XU patent/CN201363334Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704296A (en) * | 2016-12-22 | 2017-05-24 | 北汽福田汽车股份有限公司 | Balance valve mounting seat, hydraulic oil cylinder and engineering machinery |
| CN106704296B (en) * | 2016-12-22 | 2019-10-22 | 北汽福田汽车股份有限公司 | Hydraulic cylinder and engineering machinery |
| CN109530652A (en) * | 2018-11-08 | 2019-03-29 | 贵州华昌汽车电器有限公司 | A kind of plug-in type stainless steel sensor oil cylinder of die casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091216 |