CN2791606Y - Hydraulic cylinder state sensor - Google Patents
Hydraulic cylinder state sensor Download PDFInfo
- Publication number
- CN2791606Y CN2791606Y CN 200520039149 CN200520039149U CN2791606Y CN 2791606 Y CN2791606 Y CN 2791606Y CN 200520039149 CN200520039149 CN 200520039149 CN 200520039149 U CN200520039149 U CN 200520039149U CN 2791606 Y CN2791606 Y CN 2791606Y
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- China
- Prior art keywords
- hydraulic cylinder
- interface
- sensor
- cylinder state
- signal
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- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic cylinder state sensor for measuring cylinder strokes and calculating the current load, which is composed of a mechanical rotary mechanism, a coder and an electronic control unit, the moving of a hydraulic cylinder drives the rotary mechanism of the sensor and indirectly drives the coder; the electronic control unit reads the coding of the coder and the analog quantity of the hydraulic sensor; the current stroke and the load of the hydraulic cylinder are obtained by a certain relational expression. The electronic control unit can also intelligently transfer stroke and load signals of the hydraulic cylinder to other electronic units and a master control computer by real-time network. The utility model is a sensor for measuring the strokes and the load of the hydraulic cylinder and is suitable for measuring the current stroke and the load of the hydraulic cylinder. The utility model can independently work and can be connected into a network to realize multiple sensors for together work.
Description
Technical field
The utility model relates to a kind of hydraulic cylinder state sensor.Particularly relate to the sensor of measuring hydraulic cylinder travel and load thereof.
Background technology
The hydraulic cylinder state sensor is to build in recent years, when multiple industry such as bridge, harbour, petrochemical industry need promote big weight, large tracts of land structure synchronously or transfer, grow up under the background that synchronous requirement is improved day by day.The net synchronization capability that stroke sensor promotes or transfers large-scale component has very big influence.
Present hydraulic cylinder state sensor, though in measuring accuracy all than higher, but still many shortcomings are arranged, be 3 points that synchronism between the hydraulic cylinder is had the greatest impact below:
1, measuring speed is relatively slow, and real-time is poor; Present same type of sensor, a part do not have the ability of telecommunication, and another part is not based on real-time network, so the real-time of its control is poor.
2, can only work independently between the sensor, the cluster ability to work is poor; Present same type of sensor is generally based on common communication mechanism, each sensor node can only as one from node, so between the sensor data exchange capability relatively a little less than.
3, the stroke sensor of conventional cylinder and pressure transducer are two fully independently unit, and the data-handling capacity of unit itself a little less than, so just increased the load of the operand and the communication network of main control computer, the time delay of data is bigger like this, thereby influences the synchronism of total system.
Summary of the invention
The purpose of this utility model is when guaranteeing measuring accuracy, designs the hydraulic cylinder state sensor that a kind of real-time is good, the cluster ability to work strong and have certain data-handling capacity alone.
In order to achieve the above object, core of the present utility model has adopted high performance 32 single-chip microcomputers, its performance is more than 3 times of general 8 single-chip microcomputers, so just the raw data of scrambler and pressure transducer can be carried out necessary processing, thereby reduce the operand of main control computer.
In communication aspects, adopting the CAN bus is its carrier, because CAN is how main formula structure, so directly exchanges data is very convenient between the sensor.Aspect message scheduling, the message scheduling scheme that adopted comparatively advanced at present priority to promote like this with regard to the good problem that has solved the CAN bus in some low priority node real-time difference special moment.
The utility model mainly is made up of rotating mechanism, scrambler and electronic control unit three parts, and wherein, rotating mechanism is connected and fixed by bolt by rotating shaft, trim ring, disk; Rotating mechanism connects with scrambler by coupling shaft, shaft coupling; The shell of scrambler is connected with bolt with sensor outer housing and tightens up; Be connected and fixed with bolt between sensor outer housing, (the hydraulic cylinder state sensor is called for short sensor) rear panel, support, the display panel.Electronic control unit mainly is made up of 32 single-chip microcomputers, CAN communication bus module and A/D analog-to-digital conversion module three parts and interface one, interface two, interface three.Wherein, 32 single-chip microcomputers are cores of electronic control unit, and all data processing of sensor are all finished by it; Comprise the raw data that reads scrambler and oil pressure sensor, and convert them the stroke signal and the load information of hydraulic cylinder to by specific program.The A/D analog-to-digital conversion module mainly is to finish the transformation of analog signals to digital signal, and it can convert the original analog signals of oil pressure sensor to the digital quantity signal of single-chip microcomputer understanding.Hydraulic cylinder travel that CAN communication bus module can be handled single-chip microcomputer well and load information convert the protocol mode of CAN bus communication to, send to other sensor and main control computer.
The utility model not only can be measured the stroke of hydraulic cylinder, but also can calculate the current accurate load value of hydraulic cylinder according to the original analog amount of pressure transducer.And the stroke of hydraulic cylinder and load signal be incorporated into send to main control computer or other nodes in the CAN Frame.So just can improve the utilization factor of CAN bus greatly.
Advantage of the present utility model:
1, has very strong data-handling capacity;
2, the information interaction ability is strong;
3, data transmission is good in real time;
4, functional integration height;
5, the utility model can work independently, also can a plurality of sensor co-operation.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Fig. 2 is a display panel synoptic diagram of the present utility model.
Fig. 3 is an electronic control unit structural representation of the present utility model.
Label declaration in the accompanying drawing:
The 1-electronic control unit; 101-interface one;
102-interface two; 103-interface three;
The 104-A/D analog-to-digital conversion module; 105-32 position single-chip microcomputer;
106-CAN communication bus module; The 2-scrambler;
The 3-sensor outer housing; The 4-rear panel;
The 5-disk; The 6-trim ring;
The 7-wire rope; The little bearing holder (housing, cover) of 8-;
The 9-rotating shaft; The 10-coupling shaft;
The 11-shaft coupling; The 12-spring stop;
The 13-torque spring; The big bearing holder (housing, cover) of 14-;
The 15-support; 16-tie rod piece;
The 17-display panel; The 18-display interface;
The 19-power interface; 20-fuel injection pressure signal interface;
21-one number service letter interface; 22-two signal communication interfaces.
Embodiment
In conjunction with the accompanying drawings the utility model is further described.Consult clearly shown in the accompanying drawing 1,2,3: the utility model is made up of electronic control unit 1, scrambler 2, sensor outer housing 3, rear panel 4, disk 5, trim ring 6, wire rope 7, little bearing holder (housing, cover) 8, rotating shaft 9, coupling shaft 10, shaft coupling 11, spring stop 12, torque spring 13, big bearing holder (housing, cover) 14, support 15, tie rod piece 16, display panel 17.Wherein, rotating shaft 9, trim ring 6, disk 5 are connected and fixed by bolt, form a rotating mechanism, and this rotating mechanism connects with scrambler 2 by coupling shaft 10, shaft coupling 11.The shell of scrambler 2 and sensor outer housing 3 pass through bolt.Also pass through bolt between sensor outer housing 3, rear panel 4, support 15, the display panel 17.Wherein tie rod piece 16 is fixed on (not shown) on the hydraulic cylinder piston rod, and the hydraulic cylinder state sensor is fixed on the hydraulic cylinder by support 15.
One end of wire rope 7 links to each other with disk 5, the other end links to each other with tie rod piece 16, when tie rod piece 16 moves, will the driven rotary mechanism kinematic, there is not the relation of relatively moving between disk 5, trim ring 6, rotating shaft 9, coupling shaft 10 shaft couplings 11, so the displacement of tie rod piece 16 and the anglec of rotation of scrambler are linear.
One end of torque spring 13 links to each other with rotating shaft 9, and the other end links to each other with rear panel 4.So when tie rod piece 16 driven rotary mechanisms rotated, torque spring 13 just produced a power reverse with it.Therefore external force drive tie rod piece 16 is pulled out wire rope 7, and torque spring 13 just produces opposite power with external force.When work, wire rope 7 all is in the state of tensioning all the time like this.
Electronic control unit 1 of the present utility model, mainly by 32 single-chip microcomputers 106, CAN communication bus module 105 and A/D analog-to-digital conversion module 104 3 parts and interface one, interface two, interface three are formed.Wherein, 32 single-chip microcomputers 106 are cores of electronic control unit 1, and all data processing of sensor are all finished by it; Comprise the raw data that reads scrambler and oil pressure sensor, and convert them the stroke signal and the load information of hydraulic cylinder to by specific program.The A/D analog-to-digital conversion module mainly is to finish the transformation of analog signals to digital signal, and it can convert the original analog signals of oil pressure sensor to the digital quantity signal of single-chip microcomputer understanding.Hydraulic cylinder travel that CAN communication bus module can be handled single-chip microcomputer well and load information convert the protocol mode of CAN bus communication to, send to other sensor and main control computer.
Electronic control unit 1 is realized and extraneous exchanges data and collection by interface 1, interface 2 102 and interface 3 103.Wherein interface 1 links to each other with fuel injection pressure signal interface 20, and fuel injection pressure signal interface 20 links to each other with the signal wire of oil pressure sensor again.Fuel injection pressure signal is by behind the interface one collected electronic control unit, gives 32 single-chip microcomputers 104 after converting the analog signals of oil pressure sensor to digital signal by the A/D analog-to-digital conversion module.Interface 2 102 links to each other with scrambler 2, and the numeric coding signal of scrambler is passed to 32 single-chip microcomputers.Interface 3 103 links to each other with one number service letter interface 21 and two signal communication interfaces 22, links to each other with other sensor or main control computer by one number service letter interface 21, two signal communication interfaces 22 again.When the utility model worked independently, one number service letter interface 21 linked to each other with main control computer, and what sensor was real-time passes to main control computer with current load and stroke signal.
The utility model also can be realized a plurality of sensor co-operation, several sensors can be linked to each other by two signal communication interfaces 22, communicates by CAN bus protocol signal between the sensor.Each sensor all has specific numbering, and its numbering is embodied on the node ID number of CAN bus protocol.During a plurality of sensor co-operation, wherein there is the minimum sensor of numbering to become master reference automatically, it is poor that it can be calculated in several milliseconds time with the progressive error and the load of other sensor, and progressive error, load difference and travel information of itself and load information, pass to main control computer.
Claims (7)
1, a kind of hydraulic cylinder state sensor comprises scrambler, single-chip microcomputer, wire rope, torque spring, it is characterized in that:
Described hydraulic cylinder state sensor mainly is made up of rotating mechanism, scrambler, electronic control unit, and wherein, rotating mechanism is connected and fixed by bolt by rotating shaft, trim ring, disk; Rotating mechanism connects with scrambler by coupling shaft, shaft coupling; The shell and the sensor outer housing of scrambler are connected and fixed with bolt; Be connected and fixed with bolt between sensor outer housing, rear panel, support, the display panel.
2, hydraulic cylinder state sensor according to claim 1 is characterized in that:
Described electronic control unit mainly is made up of 32 single-chip microcomputers of core, CAN communication bus module and A/D analog-to-digital conversion module three parts and interface one, interface two, the interface three of electronic control unit.
3, hydraulic cylinder state sensor according to claim 1 and 2 is characterized in that:
Electronic control unit is by interface one, interface two, interface three and extraneous exchanges data and collection, and wherein, interface one links to each other with the fuel injection pressure signal interface, and the fuel injection pressure signal interface links to each other with the signal wire of oil pressure sensor again; Interface two links to each other with scrambler, and the numeric coding signal of scrambler is passed to 32 single-chip microcomputers; Interface three links to each other with two signal communication interfaces with one number service letter interface, links to each other with other sensor or main control computer by two communication interfaces again.
4, according to claim 1 or 2 or 3 described hydraulic cylinder state sensors, it is characterized in that:
When the hydraulic cylinder state sensor works independently, link to each other with main control computer by one number service letter interface, what sensor was real-time passes to main control computer with current load and stroke signal.
5, according to claim 1 or 2 or 3 or 4 described hydraulic cylinder state sensors, it is characterized in that:
The hydraulic cylinder state sensor also can a plurality of sensor co-operation, several sensors can be linked to each other by two signal communication interfaces, communicate by CAN communication bus module by signal between the sensor.
6, hydraulic cylinder state sensor according to claim 1 is characterized in that:
Described wire rope, the one end links to each other with disk, and the other end links to each other with the tie rod piece.
7, hydraulic cylinder state sensor according to claim 1 is characterized in that:
Described torque spring, the one end links to each other with rotating shaft, and the other end links to each other with rear panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039149 CN2791606Y (en) | 2005-01-21 | 2005-01-21 | Hydraulic cylinder state sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520039149 CN2791606Y (en) | 2005-01-21 | 2005-01-21 | Hydraulic cylinder state sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2791606Y true CN2791606Y (en) | 2006-06-28 |
Family
ID=36807669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520039149 Expired - Fee Related CN2791606Y (en) | 2005-01-21 | 2005-01-21 | Hydraulic cylinder state sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2791606Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769345B (en) * | 2009-12-25 | 2011-09-14 | 北京金自天正智能控制股份有限公司 | Coupling large-offset automatic compensation device |
| CN108098826A (en) * | 2017-12-13 | 2018-06-01 | 同济大学 | A kind of large scale industry robot hydraulic servo-joint |
-
2005
- 2005-01-21 CN CN 200520039149 patent/CN2791606Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101769345B (en) * | 2009-12-25 | 2011-09-14 | 北京金自天正智能控制股份有限公司 | Coupling large-offset automatic compensation device |
| CN108098826A (en) * | 2017-12-13 | 2018-06-01 | 同济大学 | A kind of large scale industry robot hydraulic servo-joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060628 |