CN201462151U - Hydraulic hoist for upturning gate - Google Patents
Hydraulic hoist for upturning gate Download PDFInfo
- Publication number
- CN201462151U CN201462151U CN2009200925647U CN200920092564U CN201462151U CN 201462151 U CN201462151 U CN 201462151U CN 2009200925647 U CN2009200925647 U CN 2009200925647U CN 200920092564 U CN200920092564 U CN 200920092564U CN 201462151 U CN201462151 U CN 201462151U
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- CN
- China
- Prior art keywords
- piston rod
- oil cylinder
- hydraulic cylinder
- hydraulic
- magnetostrictive displacement
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a hydraulic hoist for an upturning gate, which comprises a hydraulic actuator and a hinged mount, wherein the hydraulic actuator comprises a hydraulic cylinder, a piston and a piston rod; the hinged mount is hinged to the upper suspension head of the hydraulic cylinder; the upper end cover of the hydraulic cylinder is provided with a magnetostrictive displacement transducer; a measuring magnetic ring of the magnetostrictive displacement transducer is fixedly sheathed on the piston rod; a measuring magnetic bar of the magnetostrictive displacement transducer extends to a central measuring hole of the piston rod; the peripheral surface of the upper suspension head of the hydraulic cylinder is provided with an inductance approach switch; the hinged mount is provided with an induction bracket for inducing the inductance approach switch; the rod-bearing cavity main oil line of the hydraulic cylinder is provided with a by-pass pipeline; and the by-pass pipeline is communicated with an oil tank through an electromagnetic directional valve. The utility model accurately controls the magnetostrictive amount of the piston rod and the angle rotation amount of the upper suspension head of the hydraulic cylinder in the operational process of starting and stopping the hydraulic hoist, thereby ensuring the gate operation with high safety, reliability and stability.
Description
Technical field
The utility model relates to hydraulic hoist, especially relates to the hydraulic hoist that is used for upward turnover type gate.
Background technique
Along with the progress in development of science and technology and epoch, Small Watershed Management project that urban ecology water system, new countryside construction are carried out and the hydraulic engineering of ecologically clean type are more and more.Urban ecology water system and middle and small river administer that engineering has that head is low, river surface arrange clean and tidy, coordinate, satisfy characteristics such as places of cultural interest requirement mutually with urban environment.This just makes that the gate span of arranging according to above condition is very big, and also will possess navigation condition behind a lot of gate opening.Therefore, upward turnover type gate arises at the historic moment.Upward turnover type gate generally will be finished by many hoist simultaneously operatings in to the opening-closing process of gate, because the inhomogeneous and leakage rate property of there are differences of machining accuracy, surface friction drag, load of each hoist oil cylinder causes each oil cylinder will produce synchronism deviation when operation.Therefore the flexible stroke accuracy of hoist piston rod, synchronization accuracy etc. are had relatively high expectations, otherwise will cause the torsional deformation of gate and damage.
The model utility content
The hydraulic hoist that is used for upward turnover type gate that provides a kind of control accuracy high is provided the utility model purpose.
For achieving the above object, the utility model can be taked following technical proposals:
The hydraulic hoist that is used for upward turnover type gate described in the utility model; It comprises the hydraulic actuator that oil cylinder, piston, piston rod constitute and is articulated in a free bearing at described oil cylinder upper hoisting head place; Upper end cap at described oil cylinder is provided with magnetostrictive displacement sensor, and the measurement magnet ring of described magnetostrictive displacement sensor is fixedly set on the described piston rod, and the measurement bar magnet of magnetostrictive displacement sensor extends in the measuring hole of piston rod center; Oil cylinder upper hoisting head outer circumferential face is provided with inductance approach switch, and described free bearing is provided with the induction support that is used to respond to described inductance approach switch; Offer bypass duct on the cylinder rod chamber working connection, described bypass duct is connected with fuel tank by solenoid directional control valve.
The utility model advantage just is to be arranged on the built-in magnetostrictive displacement sensor at described oil cylinder upper end cap place and is arranged on inductance approach switch on the oil cylinder upper hoisting head outer circumferential face; Therefore, extending amount, the oil cylinder upper hoisting head corner amount of piston rod is able to accurate control in the hydraulic hoist keying running.Offer bypass on the cylinder rod chamber working connection, described bypass is connected with fuel tank by solenoid directional control valve; Adopt many hydraulic hoists that same gate is opened and closed the operating cyloinder operation when deviation occurring like this, according to the described electromagnetic switch valve events of deviation signal, the oil cylinder bypass draining of going ahead of the rest reaches the purpose of adjustment multi-cylinder speed unanimity to fuel tank; When the deviation of many each oil cylinders of hydraulic hoist reached the scope of setting permitted value, the solenoid directional control valve dead electricity resetted, and stops draining.PLC is by comparing in real time many oil cylinder stroke measuring systems → feedback signal → send instruction, solenoid directional control valve continuous, dead electricity adjusts the motion speed of a plurality of oil cylinders, until synchronously.Thereby guarantee gate safety, reliable, smooth running.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to the sectional structure schematic representation.
Fig. 3 is the structural representation of described in the utility model free bearing.
Fig. 4 is the right TV structure schematic representation of Fig. 3.
Embodiment
Shown in Fig. 1-4, the hydraulic hoist that is used for upward turnover type gate described in the utility model; It comprises hydraulic actuator that oil cylinder 1, piston 2, piston rod 3 constitute and a free bearing 5 that is articulated in described oil cylinder 1 upper hoisting head 4 places; In the inner chamber that the upper end cap of described oil cylinder 1 is offered, be provided with magnetostrictive displacement sensor, the measurement magnet ring 6 of described magnetostrictive displacement sensor is fixedly set on the described piston rod 3, and the measurement bar magnet 7 of magnetostrictive displacement sensor extends in the measuring hole that is opened in piston rod 3 centers; Set up by U-shaped on oil cylinder 1 upper hoisting head 4 outer circumferential faces and be equipped with inductance approach switch 8, described free bearing 5 is provided with the induction support 9 that is used to respond to described inductance approach switch 8; Offer bypass duct on oil cylinder 1 rod chamber working connection, described bypass duct is connected with fuel tank by solenoid directional control valve.
Claims (1)
1. hydraulic hoist that is used for upward turnover type gate; It comprises the hydraulic actuator that oil cylinder (1), piston (2), piston rod (3) constitute and is articulated in the free bearing (5) that described oil cylinder (1) upper hoisting head (4) is located; It is characterized in that: the upper end cap at described oil cylinder (1) is provided with magnetostrictive displacement sensor, the measurement magnet ring (6) of described magnetostrictive displacement sensor is fixedly set on the described piston rod (3), and the measurement bar magnet (7) of magnetostrictive displacement sensor extends in the measuring hole of piston rod (3) center; Oil cylinder (1) upper hoisting head (4) outer circumferential face is provided with inductance approach switch (8), and described free bearing (5) is provided with the induction support (9) that is used to respond to described inductance approach switch (8); Offer bypass duct on oil cylinder (1) rod chamber working connection, described bypass duct is connected with fuel tank by solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200925647U CN201462151U (en) | 2009-08-24 | 2009-08-24 | Hydraulic hoist for upturning gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200925647U CN201462151U (en) | 2009-08-24 | 2009-08-24 | Hydraulic hoist for upturning gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201462151U true CN201462151U (en) | 2010-05-12 |
Family
ID=42389504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200925647U Expired - Lifetime CN201462151U (en) | 2009-08-24 | 2009-08-24 | Hydraulic hoist for upturning gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201462151U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666075B (en) * | 2009-08-24 | 2011-03-30 | 黄河勘测规划设计有限公司 | Hydraulic hoist for upward turnover type gate |
| CN104120687A (en) * | 2014-06-27 | 2014-10-29 | 河海大学常州校区 | Long-distance hydraulic hoist auxiliary detecting system |
| CN104121253A (en) * | 2014-06-27 | 2014-10-29 | 河海大学常州校区 | Hydraulic hoist auxiliary detecting system |
| CN104565506A (en) * | 2015-01-14 | 2015-04-29 | 重庆川仪自动化股份有限公司 | Explosion-proof hybrid electro-hydraulic integrated actuator for valve |
-
2009
- 2009-08-24 CN CN2009200925647U patent/CN201462151U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101666075B (en) * | 2009-08-24 | 2011-03-30 | 黄河勘测规划设计有限公司 | Hydraulic hoist for upward turnover type gate |
| CN104120687A (en) * | 2014-06-27 | 2014-10-29 | 河海大学常州校区 | Long-distance hydraulic hoist auxiliary detecting system |
| CN104121253A (en) * | 2014-06-27 | 2014-10-29 | 河海大学常州校区 | Hydraulic hoist auxiliary detecting system |
| CN104120687B (en) * | 2014-06-27 | 2016-04-06 | 河海大学常州校区 | A kind of Remote Hydraulic headstock gear assisted detection system |
| CN104565506A (en) * | 2015-01-14 | 2015-04-29 | 重庆川仪自动化股份有限公司 | Explosion-proof hybrid electro-hydraulic integrated actuator for valve |
| CN104565506B (en) * | 2015-01-14 | 2017-06-09 | 重庆川仪自动化股份有限公司 | Valve is with double dynamical integrated explosion-proof electrohydraulic actuator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20100512 Effective date of abandoning: 20090824 |