CN101717052A - Pressure and flow composite controlled electro-hydraulic proportion tension control system for towing winch of trawl - Google Patents
Pressure and flow composite controlled electro-hydraulic proportion tension control system for towing winch of trawl Download PDFInfo
- Publication number
- CN101717052A CN101717052A CN200910154167A CN200910154167A CN101717052A CN 101717052 A CN101717052 A CN 101717052A CN 200910154167 A CN200910154167 A CN 200910154167A CN 200910154167 A CN200910154167 A CN 200910154167A CN 101717052 A CN101717052 A CN 101717052A
- Authority
- CN
- China
- Prior art keywords
- valve
- guiding principle
- winch
- proportion
- hydraulic
- 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.)
- Granted
Links
Images
Abstract
The invention discloses a pressure and flow composite controlled electro-hydraulic proportion tension control system for a towing winch of a trawl. The system comprises two sets of electro-hydraulic proportion tension control systems with the same structure, and each tension control system comprises a proportional directional-flow valve, a balance valve, a safety valve, a proportional overflow valve, four one-way valves, two hydraulic motors, a controller, a gear box, a torque sensor and a corner encoder. Towing winches in the two tension control systems are respectively connected with one end of each warp, while the other end of the warps is respectively connected with two ends of a netting gear through respective pulley. According to different operation conditions of the towing winch of the trawl, the system realizes proportion control on working tension of the warp, solves the problems of high labor strength, high technical requirement and low operation safety factor when the trawler fishes. The adopted hydraulic system of the towing winch can adapt to atrocious sea state, greatly improves the system safety, and ensures smooth performance of trawl fishing.
Description
Technical field
The present invention relates to offshore trawler winch class fishing gear, the trawlnet that relates in particular to the compound control of a kind of pressure flow drags guiding principle winch electro-hydraulic proportion tension control system.
Background technology
When large-scale offshore trawler carries out fishing operation, draging the guiding principle winch need adjust retractable trawlnet speed according to operating mode characteristics and job requirements in good time and make and drag guiding principle and keep suitable tensile force, thereby make the trawlnet failure otherwise may cause catch to reduce, also can lead to massive losses such as fishing gear damage, hawser fracture and trawlnet loss when serious.Therefore, must carry out Tension Control to draging the guiding principle winch, promote the catching rate of trawlnet system, improve the safety and the reliability of fishing operation according to the operating mode characteristics.Because it is frequent that the work of guiding principle winch is draged in the offshore trawler trawling, the load behavior complexity, the netting gear quality is big, fishery harvesting heavy, and marked change takes place in resistance along with job scheduling, trawlnet drags guiding principle length constantly to be changed along with the carrying out of trawling, drag guiding principle rigidity and also change thereupon, drag guiding principle winch radius of turn simultaneously along with the carrying out of twining constantly becomes big.Therefore, trawlnet drags and becomes the overload hydraulic system when guiding principle system is representative type.
Large-scale offshore trawler is fished for the winch One's name is legion, and hydraulic efficiency pressure system adopts constant pressure oil source to concentrate to the performance element fuel feeding, to reduce number of elements, to improve hydraulic efficiency pressure system efficient.But because the hydraulic efficiency pressure system oil supply pressure is constant, be difficult to drag guiding principle tension force by the method direct control of adjusting pressure, guiding principle winch hydraulic efficiency pressure system is many carries out the Tension Control that trawlnet drags guiding principle by the real-time regulation system flow in therefore traditional draging.Yet, flow system flow control is to drag guiding principle tension force by adjusting the indirect control of winch hauling speed, there is big time lag, as putting net operation moment, the instantaneous rising of motor high pressure chest pressure, flow control is elevated to hysteresis that the flow control valve events exists and can't effectively controls and drag guiding principle tension force from detecting tension force, may cause system danger such as guiding principle fracture or hydraulic tubing explosion to occur draging.Therefore, how solving the problem of control system of invariable pressure flow control appearance and the contradiction between pressure flow, realize draging quick, the accuracy control of guiding principle tension force, is the key technical problem of trawler warp winch tension control system.
Summary of the invention
The object of the present invention is to provide the trawlnet of the compound control of a kind of pressure flow to drag guiding principle winch electro-hydraulic proportion tension control system, be used to realize the proportional control of trawler warp winch tension force under the complex working condition, tradition be can solve and the problem that the control of guiding principle winch flow rate of hydraulic system exists, the rapidity of draging the guiding principle Tension Control, accuracy and the stability of raising draged.
The technical solution adopted for the present invention to solve the technical problems is:
The present invention includes the identical electro-hydraulic proportion tension control system of two nested structures, every cover electro-hydraulic proportion tension control system includes proportion directional valve, balance cock, safety valve, proportional pressure control valve, four check valves, two HM Hydraulic Motor, controller, gear case, torque sensor and angle-position encoder; The oil inlet P of proportion directional valve
1Be communicated with the oil outlet A of proportion directional valve with the constant voltage chargine line
1Oil inlet A with balance cock
2Be communicated with the oil outlet A of balance cock
3With the safety valve oil inlet P
3, the oil outlet of first check valve, the oil inlet of the 4th check valve, an end a of first HM Hydraulic Motor
2And second HM Hydraulic Motor, one end a
3Be communicated with the oil inlet P of proportional pressure control valve
2Be communicated with the oil return inlet T of proportional pressure control valve with the oil outlet and the 4th check valve oil outlet of the 3rd check valve
2With the first check valve oil inlet, the second check valve oil inlet and safety valve oil return inlet T
3Be communicated with connected tank, the oil outlet B of proportion directional valve
1Other end b with first HM Hydraulic Motor
2, second HM Hydraulic Motor other end b
3, the oil outlet of second check valve, the oil inlet of the 3rd check valve and the control port X of balance cock
1Be communicated with; First hydraulic motor output shaft is connected with the gear case input end with second hydraulic motor output shaft, the mouth of gear case by torque sensor with drag the guiding principle winch and be connected, angle-position encoder with drag the guiding principle winch and be connected, torque sensor is connected with the controller input end with angle-position encoder, and controller output end is connected with the electromagnet of proportion directional valve and the electromagnet of proportional pressure control valve.
Described first cover first in electro-hydraulic proportion tension control system drags the end that guiding principle winch and first drags guiding principle and is connected, and first other end that drags guiding principle is connected with an end of netting gear through first pulley; Second drags the end that guiding principle winch and first drags guiding principle and is connected in the second cover electro-hydraulic proportion tension control system, and second other end that drags guiding principle is connected with the other end of netting gear through second pulley.
The beneficial effect that the present invention has is:
(1) the present invention adopts proportion directional valve and proportional pressure control valve to realize the compound control of pressure flow of winch hydraulic efficiency pressure system, by the incoming signal control motor cavity pressure of the real-time resize ratio by pass valve of load behavior, obtain the optimum damping coefficient to improve system stability by resize ratio flow regulating valve valve port opening.
(2) put in the net operation and drag guiding principle tension force, realized that trawlnet drags the dynamic brake that the guiding principle winch is put network process by real-time control; Put passing ratio by pass valve connection in motor high and low pressure chamber in the net operation, the flow of proportion directional valve only plays the effect of repairing, therefore effectively reduces the loss in efficiency of putting network process.
(3) set up proportional pressure control valve pressure to safety valve pressure,, realize the flow control of draging guiding principle winch tension force by regulating proportion directional valve valve port opening Adjustment System flow.
(4) the present invention can be adapted to the complex working condition of trawlboat operation, and that realizes retractable trawlnet and the position adjustment of trawlnet net drags the guiding principle Tension Control.Be applicable to that trawlboat fishing operation complex working condition in time becomes heavily loaded occasion.
Description of drawings
Fig. 1 is a hydraulic principle scheme drawing of the present invention.
Fig. 2 is the present invention's compound control principle scheme drawing of pressure flow when putting the net operation.
Fig. 3 is the present invention's compound control principle scheme drawing of pressure flow when receiving the net operation.
Among the figure: 1. proportion directional valve, 2. balance cock, 3. safety valve, 4. proportional pressure control valve, 5-1,5-2,5-3,5-4 check valve, 6-1,6-2. HM Hydraulic Motor, 7. controller, 8. gear case, 9. torque sensor, 10. angle-position encoder, 11-1,11-2. drag the guiding principle winch, 12-1,12-2. pulley, and 13-1,13-2. drag guiding principle, 14. netting gear, 15,16,17,18,19,20,21,22,23,24,25,26. pipelines.
The specific embodiment
As shown in Figure 1, the present invention includes the identical electro-hydraulic proportion tension control system of two nested structures, every cover electro-hydraulic proportion tension control system includes proportion directional valve 1, balance cock 2, safety valve 3, proportional pressure control valve 4, four check valve 5-1,5-2,5-3,5-4, two HM Hydraulic Motor 6-1,6-2, controller 7, gear case 8, torque sensor 9 and angle-position encoder.The oil inlet P of proportion directional valve 1
1Be communicated with the oil outlet A of proportion directional valve 1 with constant voltage chargine line 15
1Oil inlet A with balance cock 2
2Be communicated with the oil outlet A of balance cock 2
3With safety valve 3 oil inlet P
3, the oil outlet of the first check valve 5-1, the oil inlet of the 4th check valve 5-4, the end a of the first HM Hydraulic Motor 6-1
2And the second HM Hydraulic Motor 6-2, one end a
3Be communicated with the oil inlet P of proportional pressure control valve 4
2Be communicated with the oil return inlet T of proportional pressure control valve 4 with oil outlet and the 4th check valve 5-4 oil outlet of the 3rd check valve 5-3
2With the first check valve 5-1 oil inlet, the second check valve 5-2 oil inlet and safety valve 3 oil return inlet T
3Be communicated with connected tank, the oil outlet B of proportion directional valve 1
1Other end b with the first HM Hydraulic Motor 6-1
2, the second HM Hydraulic Motor 6-2 other end b
3, the oil outlet of the second check valve 5-2, the oil inlet of the 3rd check valve 5-3 and the control port X of balance cock 2
1Be communicated with; The output shaft of the first HM Hydraulic Motor 6-1 is connected with gear case 8 input ends with the second HM Hydraulic Motor 6-2 output shaft, the mouth of gear case 8 by torque sensor 9 with drag the guiding principle winch and be connected, angle-position encoder 10 with drag the guiding principle winch and be connected, torque sensor 9 is connected with controller 7 input ends with angle-position encoder 10, and controller 7 mouths are connected with the electromagnet of proportion directional valve 1 and the electromagnet of proportional pressure control valve 4.
Described first cover first in electro-hydraulic proportion tension control system drags the end that guiding principle winch 11-1 and first drags guiding principle 13-1 and is connected, and first other end that drags guiding principle 13-1 is connected with an end of netting gear 14 through the first pulley 12-1; Second drags the end that guiding principle winch 11-2 and first drags guiding principle 13-2 and is connected in the second cover electro-hydraulic proportion tension control system, and second other end that drags guiding principle 13-2 is connected with the other end of netting gear 14 through the second pulley 12-2.
As shown in Figure 2, first drags guiding principle winch 11-1 when realizing putting net operation Tension Control, netting gear 14 is because the drag effect pulling first of water is draged guiding principle 13-1 to draging the motion of guiding principle winch 11-1 direction away from first, drags guiding principle 13-1 and drives through pulley 12-1 and drag guiding principle winch 11-1 and rotate the first HM Hydraulic Motor 6-1a
2The chamber and the second HM Hydraulic Motor 6-2a
3Be forced to be high pressure chest, the first HM Hydraulic Motor 6-1b
2The chamber and the second HM Hydraulic Motor 6-2b
3The chamber is a low-pressure cavity, the first HM Hydraulic Motor 6-1a
2The chamber and the second HM Hydraulic Motor 6-2a
3The chamber high pressure oil by the road 20,21,22 and check valve 5-4 flow into the oil inlet P of proportional pressure control valve 4
2, from the oil outlet T of proportional pressure control valve 4
2Flow out, the hydraulic oil part of outflow is 25 oil sump tanks by the road, and another part enters the first HM Hydraulic Motor 6-1b through check valve 5-2 and pipeline 17,18,19
2The chamber and the second HM Hydraulic Motor 6-2b
3The chamber, to the repairing of motor low-pressure cavity, proportion directional valve 1 is in b at this moment
1The position, proportion directional valve 1 oil inlet P
1With oil outlet B
1Be communicated with oil outlet A
1And oil return inlet T
1Be communicated with, system pressure oil 15 enters proportion directional valve 1 oil inlet P by the road
1, from proportion directional valve 1 oil outlet B
1Flow out, outflow pressure oil 16,17,18,19 enters the first HM Hydraulic Motor 6-1b by the road
2The chamber and the second HM Hydraulic Motor 6-2b
3The chamber is to the repairing of motor low-pressure cavity.
First drags guiding principle winch 11-1 when realizing putting net operation Tension Control, angle-position encoder 10 detects first in real time and drags guiding principle winch 11-1 corner, torque sensor 9 detects first in real time and drags guiding principle winch 11-1 moment of torsion, controller 7 calculates by detected angular signal and torque signal and drags guiding principle tension force, and drag guiding principle tension force with setting and compare, controller 7 output signals are regulated the repairing amount by resize ratio direction valve 1 valve port opening, and controller 7 output signals are realized first Tension Control of draging guiding principle winch 11-1 by control ratio by pass valve 4 pressure.
As shown in Figure 3, first drags guiding principle winch 11-1 when realize receiving the compound control of the pressure flow of net operation tension force, and proportion directional valve 1 is operated in a
1The position, proportion directional valve 1 oil inlet P
1With oil outlet A
1Be communicated with oil outlet B
1And oil return inlet T
1Be communicated with, system pressure oil 15 enters proportion directional valve 1 oil inlet P by the road
1, from proportion directional valve 1 oil outlet A
1Flow out, outflow pressure oil flows into balance cock 2 oil inlet A
2, bypass disc arrives oil outlet A internally
3, oil outlet A
3An outflow pressure oil part 23,22,20,21 enters the first HM Hydraulic Motor 6-1a respectively by the road
2The chamber and the second HM Hydraulic Motor 6-2a
3The chamber drives first and drags guiding principle winch 11-1 rotation, and first drags guiding principle winch 11-1 realizes receiving the net operations through draging guiding principle 13-1 towing netting gear 14, and another part hydraulic oil is by the 4th check valve 5-4 inflow proportional pressure control valve 4 oil inlet P
2, through proportional pressure control valve 4 oil return inlet T
2Flow out, 25 flow back to fuel tank by the road, the first HM Hydraulic Motor 6-1b
2The chamber and the second HM Hydraulic Motor 6-2b
3Chamber hydraulic oil 19,18,17,16 flows into proportion directional valve 1 oil outlet B by the road
1, from proportion directional valve 1 oil return inlet T
1Flow out, 26 flow back to fuel tank by the road.Angle-position encoder 10 detects first in real time and drags guiding principle winch 11-1 corner, torque sensor 9 detects first in real time and drags guiding principle winch 11-1 moment of torsion, controller 7 calculates by detected angular signal and torque signal and drags guiding principle tension force, and drag guiding principle tension force with setting and compare, controller 7 output signals are realized first Tension Control of draging guiding principle winch 11-1 by resize ratio by pass valve 4 pressure, output signal passes through control ratio direction valve 1 valve port opening real-time regulating system flow, and then realizes that first drags the compound control of pressure flow of guiding principle winch 11-1 tension force.
First drags guiding principle winch 11-1 when realize receiving the flow control of net operation tension force, and proportional pressure control valve 4 transfers to opening pressure of safety valve, and proportion directional valve 1 is operated in a
1The position, proportion directional valve 1 oil inlet P
1With oil outlet A
1Be communicated with oil outlet B
1And oil return inlet T
1Be communicated with, system pressure oil 15 enters proportion directional valve 1 oil inlet P by the road
1, from proportion directional valve 1 oil outlet A
1Flow out, outflow pressure oil flows into balance cock 2 oil inlet A
2, bypass disc arrives oil outlet A internally
3, oil outlet A
3 Outflow pressure oil 23,22,20,21 enters the first HM Hydraulic Motor 6-1a respectively by the road
2The chamber and the second HM Hydraulic Motor 6-2a
3The chamber drives first and drags guiding principle winch 11-1 rotation, and first drags guiding principle winch 11-1 realizes receiving net operations, the first HM Hydraulic Motor 6-1b through draging guiding principle 13-1 towing netting gear 14
2The chamber and the second HM Hydraulic Motor 6-2b
3Chamber hydraulic oil 19,18,17,16 flows into proportion directional valve 1 oil outlet B by the road
1, from proportion directional valve 1 oil return inlet T
1Flow out, 26 flow back to fuel tank by the road.Angle-position encoder 10 detects first in real time and drags guiding principle winch 11-1 corner, torque sensor 9 detects first in real time and drags guiding principle winch 11-1 moment of torsion, controller 7 calculates by detected angular signal and torque signal and drags guiding principle tension force, and drag guiding principle tension force with setting and compare, controller 7 output signals pass through control ratio direction valve 1 valve port opening real-time regulating system flow, and then realize that first drags the flow control of guiding principle winch 11-1 tension force.
Drag guiding principle winch electro-hydraulic proportion tension control system and be provided with safety valve 3, system's maximum pressure when being used to limit the operation of retractable net, when system pressure was higher than safety valve 3 settling pressures, safety valve was opened, and hydraulic oil is through safety valve 3 oil inlet P
3Flow into, through oil return inlet T
3Flow out, 24 flow back to fuel tank by the road at last.
Second cover drags guiding principle winch electro-hydraulic proportion tension control system and first and overlaps and to drag guiding principle winch electro-hydraulic proportion tension control system and synchronous working, and principle of work is identical.
Claims (2)
1. the trawlnet of the compound control of pressure flow drags guiding principle winch electro-hydraulic proportion tension control system, it is characterized in that: comprise the electro-hydraulic proportion tension control system that two nested structures are identical, every cover electro-hydraulic proportion tension control system includes proportion directional valve (1), balance cock (2), safety valve (3), proportional pressure control valve (4), four check valves (5-1,5-2,5-3,5-4), two HM Hydraulic Motor (6-1,6-2), controller (7), gear case (8), torque sensor (9) and angle-position encoder (10); The oil inlet P of proportion directional valve (1)
1Be communicated with the oil outlet A of proportion directional valve (1) with constant voltage chargine line (15)
1Oil inlet A with balance cock (2)
2Be communicated with the oil outlet A of balance cock (2)
3With safety valve (3) oil inlet P
3, the oil outlet of first check valve (5-1), the oil inlet of the 4th check valve (5-4), an end a of first HM Hydraulic Motor (6-1)
2And second HM Hydraulic Motor (6-2) end a
3Be communicated with the oil inlet P of proportional pressure control valve (4)
2Be communicated with the oil return inlet T of proportional pressure control valve (4) with the oil outlet and the 4th check valve (5-4) oil outlet of the 3rd check valve (5-3)
2With first check valve (5-1) oil inlet, second check valve (5-2) oil inlet and safety valve (3) oil return inlet T
3Be communicated with connected tank, the oil outlet B of proportion directional valve (1)
1Other end b with first HM Hydraulic Motor (6-1)
2, second HM Hydraulic Motor (6-2) other end b
3, the oil outlet of second check valve (5-2), the oil inlet of the 3rd check valve (5-3) and the control port X of balance cock (2)
1Be communicated with; The output shaft of first HM Hydraulic Motor (6-1) is connected with gear case (8) input end with second HM Hydraulic Motor (6-2) output shaft, the mouth of gear case (8) by torque sensor (9) with drag the guiding principle winch and be connected, angle-position encoder (10) with drag the guiding principle winch and be connected, torque sensor (9) is connected with the same controller of angle-position encoder (10) (7) input end, and controller (7) mouth is connected with the electromagnet of proportion directional valve (1) and the electromagnet of proportional pressure control valve (4).
2. the trawlnet of the compound control of a kind of pressure flow according to claim 1 drags guiding principle winch electro-hydraulic proportion tension control system, it is characterized in that: described first cover first in electro-hydraulic proportion tension control system drags the end that guiding principle winch (11-1) and first drags guiding principle (13-1) and is connected, and first other end that drags guiding principle (13-1) is connected through the end of first pulley (12-1) with netting gear (14); Second drags the end that guiding principle winch (11-2) and first drags guiding principle (13-2) and is connected in the second cover electro-hydraulic proportion tension control system, and second other end that drags guiding principle (13-2) is connected through the other end of second pulley (12-2) with netting gear (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101541672A CN101717052B (en) | 2009-11-09 | 2009-11-09 | Pressure and flow composite controlled electro-hydraulic proportion tension control system for towing winch of trawl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101541672A CN101717052B (en) | 2009-11-09 | 2009-11-09 | Pressure and flow composite controlled electro-hydraulic proportion tension control system for towing winch of trawl |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101717052A true CN101717052A (en) | 2010-06-02 |
| CN101717052B CN101717052B (en) | 2011-11-09 |
Family
ID=42431703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101541672A Expired - Fee Related CN101717052B (en) | 2009-11-09 | 2009-11-09 | Pressure and flow composite controlled electro-hydraulic proportion tension control system for towing winch of trawl |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101717052B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096421A (en) * | 2010-11-19 | 2011-06-15 | 浙江大学 | Electro-hydraulic proportional tension control system of purse line stranding machine based on redundancy fault tolerant control |
| CN102935879A (en) * | 2012-12-05 | 2013-02-20 | 中国水产科学研究院渔业机械仪器研究所 | Steel warp tension balancing compensation configuration structure of trawler |
| CN103016438A (en) * | 2012-11-23 | 2013-04-03 | 武汉船用机械有限责任公司 | Electric-hydraulic proportion control valve set |
| CN103613028A (en) * | 2013-11-22 | 2014-03-05 | 无锡市海联舰船附件有限公司 | Towing-winch hydraulic control circuit for controlling constant tension of cables |
| CN105836648A (en) * | 2016-06-07 | 2016-08-10 | 中国水产科学研究院渔业机械仪器研究所 | Fishing boat trawl winch tension control system |
| CN106115527A (en) * | 2016-08-27 | 2016-11-16 | 捷胜海洋装备股份有限公司 | A kind of hydraulic system of the special long-range electrical-liquid control platform of purse seiner winch |
| CN106379827A (en) * | 2016-11-01 | 2017-02-08 | 中国水产科学研究院渔业机械仪器研究所 | Hydraulic tensioning system for rope length control of hydraulic winch |
| CN107725511A (en) * | 2017-09-29 | 2018-02-23 | 江苏威和海洋工程设备有限公司 | A kind of compensation of undulation loop wheel machine control system for lifeboat recovery |
| CN109162312A (en) * | 2018-09-28 | 2019-01-08 | 徐州徐工基础工程机械有限公司 | A kind of capstan winch torque self-adjusting system, method and diaphragm wall hydraulic chute forming machine |
-
2009
- 2009-11-09 CN CN2009101541672A patent/CN101717052B/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102096421A (en) * | 2010-11-19 | 2011-06-15 | 浙江大学 | Electro-hydraulic proportional tension control system of purse line stranding machine based on redundancy fault tolerant control |
| CN103016438A (en) * | 2012-11-23 | 2013-04-03 | 武汉船用机械有限责任公司 | Electric-hydraulic proportion control valve set |
| CN103016438B (en) * | 2012-11-23 | 2015-07-29 | 武汉船用机械有限责任公司 | A kind of electrohydraulic proportional control valve group |
| CN102935879A (en) * | 2012-12-05 | 2013-02-20 | 中国水产科学研究院渔业机械仪器研究所 | Steel warp tension balancing compensation configuration structure of trawler |
| CN103613028A (en) * | 2013-11-22 | 2014-03-05 | 无锡市海联舰船附件有限公司 | Towing-winch hydraulic control circuit for controlling constant tension of cables |
| CN103613028B (en) * | 2013-11-22 | 2015-12-16 | 无锡市海联舰船附件有限公司 | Hauling machine hawser identical tension hydraulic control circuit |
| CN105836648A (en) * | 2016-06-07 | 2016-08-10 | 中国水产科学研究院渔业机械仪器研究所 | Fishing boat trawl winch tension control system |
| CN105836648B (en) * | 2016-06-07 | 2018-05-08 | 中国水产科学研究院渔业机械仪器研究所 | A kind of fishing boat trawl winch tension control system |
| CN106115527A (en) * | 2016-08-27 | 2016-11-16 | 捷胜海洋装备股份有限公司 | A kind of hydraulic system of the special long-range electrical-liquid control platform of purse seiner winch |
| CN106115527B (en) * | 2016-08-27 | 2018-07-03 | 捷胜海洋装备股份有限公司 | A kind of hydraulic system of the special long-range electrical-liquid control platform of purse seiner winch |
| CN106379827A (en) * | 2016-11-01 | 2017-02-08 | 中国水产科学研究院渔业机械仪器研究所 | Hydraulic tensioning system for rope length control of hydraulic winch |
| CN107725511A (en) * | 2017-09-29 | 2018-02-23 | 江苏威和海洋工程设备有限公司 | A kind of compensation of undulation loop wheel machine control system for lifeboat recovery |
| CN107725511B (en) * | 2017-09-29 | 2019-11-26 | 江苏威和海洋工程设备有限公司 | A kind of compensation of undulation loop wheel machine control system for lifeboat recycling |
| CN109162312A (en) * | 2018-09-28 | 2019-01-08 | 徐州徐工基础工程机械有限公司 | A kind of capstan winch torque self-adjusting system, method and diaphragm wall hydraulic chute forming machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101717052B (en) | 2011-11-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101717052B (en) | Pressure and flow composite controlled electro-hydraulic proportion tension control system for towing winch of trawl | |
| CN102153027B (en) | Stepless regulation constant tension device for hydraulic winch | |
| CN103161777B (en) | The fluid pressure drive device of engineering machinery | |
| CN106379827B (en) | A kind of hydraulic winch rope length controls hydraulic pressure tension system | |
| CN103807232B (en) | The fluid pressure drive device of engineering machinery | |
| CN107814324B (en) | Take two pressure compensation's anchor winch hydraulic control system | |
| CN2897976Y (en) | Intelligent controller of hoisting brake for crane | |
| CN202827716U (en) | Steering electro-hydraulic control system for remote-control loader | |
| CN102777434A (en) | Hydraulic driving apparatus for working machine | |
| CN106032261B (en) | The tenslator of high power hydraulic winch | |
| CN109019340B (en) | A kind of bistable rope winch hydraulic system of tension Independent adjustable | |
| CN102556872B (en) | Hydraulic rope unreeling control system, hydraulic rope reeling control system and crane | |
| CN103601088A (en) | Large load sensitive type tension-releasing hydraulic dragging winch | |
| CN102756791A (en) | Hydraulic anchor machine braking system with two-gear speed adjustment | |
| CN103075101B (en) | Mining multi-logical protection loop and multi-linkage functional drill hydraulic system | |
| CN105621294B (en) | A kind of double luffing synchronous adjustment control valve groups of hydraulic controlled operation | |
| CN203612864U (en) | Hydraulic winch constant-tension control device | |
| CN207361654U (en) | Marine tow winch hydraulic system | |
| CN107500150A (en) | A kind of passive type identical tension hydraulic control system of mooring winch | |
| CN203529840U (en) | Steel wire rope winching device | |
| CN201934400U (en) | Hydraulic control system for tensioning chain of leveling type hydraulic motor | |
| CN201301975Y (en) | Liquid proportional pressure-reducing valve, valve bank, suspension arm and hoisting hydraulic control system | |
| CN103423488B (en) | A kind of auto-tensioning valve group | |
| CN108035945A (en) | Control valve group for the output of quantitative system flow proportional | |
| CN201858079U (en) | Yawing brake device of wind power generation hydraulic system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20111109 Termination date: 20181109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |