CN106678127A - Hydraulic extension rod with spring distance measurement function - Google Patents
Hydraulic extension rod with spring distance measurement function Download PDFInfo
- Publication number
- CN106678127A CN106678127A CN201510762973.3A CN201510762973A CN106678127A CN 106678127 A CN106678127 A CN 106678127A CN 201510762973 A CN201510762973 A CN 201510762973A CN 106678127 A CN106678127 A CN 106678127A
- Authority
- CN
- China
- Prior art keywords
- piston rod
- cylinder barrel
- mounting plate
- hydraulically extensible
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Abstract
The invention discloses a hydraulic extension rod with the spring distance measurement function. The hydraulic extension rod comprises an oil cylinder, a valve group and an oil pump motor. The oil cylinder comprises a cylinder barrel and a piston rod which is arranged inside the cylinder barrel in a sleeved mode. A lower annular mounting plate mounted on the cylinder barrel in a sleeving mode is arranged on the outer wall of the cylinder barrel. An upper annular mounting plate installed on the piston rod in a sleeving mode is arranged at the end, far away from the cylinder barrel, of the piston rod. Three tension sensors are arranged in the peripheral direction of the lower mounting plate at equal intervals. One end of each tension spring is provided with an extension spring, and the other end of each tension spring is connected with the upper mounting plate. The stress direction of each tension spring is consistent with the moving direction of the piston rod. The hydraulic extension rod is further provided with a controller. The oil pump motor and the tension sensors are both connected with the controller. By means of the hydraulic extension rod, the stroke of the piston rod can be measured directly, and measurement is accurate; and moreover, the moving direction of the piston rod can be monitored, and an alarm can be given directly if deviation happens.
Description
Technical field
This law is related to hydraulically extensible bar field, and in particular to a kind of hydraulically extensible bar with spring distance measurement function.
Background technology
Hydraulically extensible bar is the common push rod equipment in this area, is generally made up of oil cylinder, valve group and oil pump, according to
The motion of oil pump can in general disclosure satisfy that requirement with the stroke of control cylinder, but special at some
In the case of, such as situations such as hydraulically extensible bar has damage, it is easily caused climb displacement inaccurate.And piston rod
The direction of motion it is also possible to off-axis direction.
The content of the invention
Goal of the invention：It is contemplated that overcoming the defect of prior art, there is provided a kind of with spring distance measurement function
Hydraulically extensible bar.
Technical scheme：A kind of hydraulically extensible bar with spring distance measurement function, including oil cylinder, valve group, oil pump electricity
Machine, the oil cylinder includes cylinder barrel and the piston rod being set in cylinder barrel, and the outer wall of the cylinder barrel is provided with suit
Annular lower installation board on cylinder barrel, the piston rod is provided with suit on the piston rod away from one end of cylinder barrel
Annular upper mounting plate, three pulling force sensors, institute are along the circumferential direction equidistantly provided with the lower installation board
The one end for stating pulling force sensor is provided with extension spring, and the other end connection upper mounting plate of the extension spring is described
The Impact direction of extension spring is consistent with the direction of motion of piston rod；The hydraulically extensible bar is additionally provided with controller,
Oil pump electrical machinery, pulling force sensor are connected with controller.
Further, the controller is PLC.
Further, be additionally provided with warning device on the hydraulically extensible bar, when 3 pulling force sensors between any two
Value of thrust difference have one more than given threshold when, controller control warning device report to the police.
Further, the upper mounting plate is integrally formed with piston rod, lower installation board and cylinder barrel.
Further, the distance on the upper mounting plate and piston rod top is less than 5cm.
Beneficial effect：The liquid presses piston pole of the present invention, can accurately be counted by external spring and pulling force sensor
The stroke of piston rod is calculated, and is not depended on accurate with oil pump.And by whether judging three pressure sensors
It is equivalent, moreover it is possible to judge the direction of motion of piston rod whether off-axis, it is ensured that the accuracy of liquid presses piston pole motion.
Description of the drawings
Fig. 1 is the schematic diagram of the hydraulically extensible bar with spring distance measurement function.
Specific embodiment
A kind of hydraulically extensible bar with spring distance measurement function, including oil cylinder, valve group, Oil pump electrical machinery 1, it is described
Oil cylinder includes cylinder barrel 2.1 and the piston rod 2.2 being set in cylinder barrel, and the outer wall of the cylinder barrel is provided with suit
Annular lower installation board 4 on cylinder barrel, the piston rod is provided with away from one end of cylinder barrel and is sleeved on piston rod
On annular upper mounting plate 3, three pulling force sensors are along the circumferential direction equidistantly provided with the lower installation board
5, one end of the pulling force sensor is provided with extension spring 6, installs in the other end connection of the extension spring
Plate, the Impact direction of the extension spring is consistent with the direction of motion of piston rod；The hydraulically extensible bar is additionally provided with
Controller, Oil pump electrical machinery, pulling force sensor are connected with controller.Controller is PLC.Hydraulic pressure
Warning device is additionally provided with expansion link, when the difference of 3 pulling force sensors value of thrust between any two has one to be more than
During given threshold, controller control warning device is reported to the police.Upper mounting plate is equal with piston rod, lower installation board and cylinder barrel
It is integrally formed.The distance on upper mounting plate and piston rod top is less than 5cm.
The hydraulically extensible bar of the present invention can measure accurate with the stroke of direct measurement piston rod, and can monitor
The direction of motion of piston rod, if the deviation from can directly report to the police.
Although the present invention is illustrated with regard to preferred embodiment and described, those skilled in the art should manage
Solution, without departing from scope defined by the claims of the present invention, the present invention can be carried out various change and
Modification.
Claims (5)
1. a kind of hydraulically extensible bar with spring distance measurement function, including oil cylinder, valve group, Oil pump electrical machinery, its
It is characterised by, the oil cylinder includes cylinder barrel and the piston rod being set in cylinder barrel, sets on the outer wall of the cylinder barrel
There is the annular lower installation board being sleeved on cylinder barrel, the piston rod is provided with away from one end of cylinder barrel and is sleeved on work
The upper mounting plate of the annular on stopper rod, is along the circumferential direction equidistantly provided with three pull sensing on the lower installation board
Device, one end of the pulling force sensor is provided with extension spring, and the other end of the extension spring connects upper mounting plate,
The Impact direction of the extension spring is consistent with the direction of motion of piston rod；The hydraulically extensible bar is additionally provided with control
Device, Oil pump electrical machinery, pulling force sensor are connected with controller.
2. the hydraulically extensible bar with spring distance measurement function according to claim 1, it is characterised in that
The controller is PLC.
3. the hydraulically extensible bar with spring distance measurement function according to claim 1, it is characterised in that
Warning device is additionally provided with the hydraulically extensible bar, when the difference of 3 pulling force sensors value of thrust between any two has
One more than given threshold when, controller control warning device report to the police.
4. the hydraulically extensible bar with spring distance measurement function according to claim 1, it is characterised in that
The upper mounting plate is integrally formed with piston rod, lower installation board and cylinder barrel.
5. the hydraulically extensible bar with spring distance measurement function according to claim 1, it is characterised in that
The distance on the upper mounting plate and piston rod top is less than 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762973.3A CN106678127A (en) | 2015-11-10 | 2015-11-10 | Hydraulic extension rod with spring distance measurement function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510762973.3A CN106678127A (en) | 2015-11-10 | 2015-11-10 | Hydraulic extension rod with spring distance measurement function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106678127A true CN106678127A (en) | 2017-05-17 |
Family
ID=58864996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510762973.3A Withdrawn CN106678127A (en) | 2015-11-10 | 2015-11-10 | Hydraulic extension rod with spring distance measurement function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106678127A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394939A (en) * | 2017-08-22 | 2017-11-24 | 安徽杰特电气有限公司 | anti-deformation support mechanism |
| CN107565731A (en) * | 2017-08-22 | 2018-01-09 | 安徽杰特电气有限公司 | Motor housing |
| CN107623399A (en) * | 2017-08-22 | 2018-01-23 | 安徽杰特电气有限公司 | Motor housing |
-
2015
- 2015-11-10 CN CN201510762973.3A patent/CN106678127A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394939A (en) * | 2017-08-22 | 2017-11-24 | 安徽杰特电气有限公司 | anti-deformation support mechanism |
| CN107565731A (en) * | 2017-08-22 | 2018-01-09 | 安徽杰特电气有限公司 | Motor housing |
| CN107623399A (en) * | 2017-08-22 | 2018-01-23 | 安徽杰特电气有限公司 | Motor housing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170517 |