CN104495624A - Super-lift winch lockpin device control system and crane - Google Patents
Super-lift winch lockpin device control system and crane Download PDFInfo
- Publication number
- CN104495624A CN104495624A CN201410779418.7A CN201410779418A CN104495624A CN 104495624 A CN104495624 A CN 104495624A CN 201410779418 A CN201410779418 A CN 201410779418A CN 104495624 A CN104495624 A CN 104495624A
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- CN
- China
- Prior art keywords
- lift winch
- change
- oil cylinder
- over valve
- lock pin
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- 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.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/18—Control systems or devices
- B66C13/20—Control systems or devices for non-electric drives
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/42—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes with jibs of adjustable configuration, e.g. foldable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C2700/00—Cranes
- B66C2700/03—Cranes with arms or jibs; Multiple cranes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Elevator Control (AREA)
- Types And Forms Of Lifts (AREA)
- Jib Cranes (AREA)
Abstract
The invention provides a super-lift winch lockpin device control system which comprises a super-lift winch, a hydraulic motor used for driving the super-lift winch to rotate, a first reversing valve used for controlling the hydraulic motor, a tension oil cylinder adapting to the super-lift winch, a lockpin oil cylinder connected with the tension oil cylinder, and a second reversing valve used for controlling the lockpin oil cylinder, wherein the first reversing valve is a three-position four-way valve with a meso-position function of an O type, the second reversing valve is a three-position four-way valve with a meso-position function of a Y type, and a single-way valve used for preventing hydraulic oil from backwards flowing from an oil inlet is connected to the oil inlet of the second reversing valve. According to the super-lift winch lockpin device control system, the single-way valve is arranged at the oil inlet of the second reversing valve, when the lockpin oil cylinder operates, hydraulic oil in a rodless cavity of the lockpin oil cylinder can be prevented from backwards flowing when a pressure of a hydraulic system fluctuates; the lockpin oil cylinder can be in a floating state by virtue of the meso-position function of the Y type of the second reversing valve when not operating. The invention further discloses a crane with the super-lift winch lockpin device control system.
Description
Technical field
The present invention relates to a kind of super lift winch latch gear control system, the invention still further relates to a kind of hoisting crane.
Background technology
Full Terrain Cranes, principal arm adopts the version of more piece box arm mostly, and when flexible brachium is longer, under jib, winding degree is larger, and this have impact on the lifting performance of hoisting crane greatly.In order to reduce winding degree under jib, improve lifting performance, the full Terrain Cranes of full Terrain Cranes, particularly large-tonnage all installs super lifting device additional, to reduce the lower winding degree of jib.
As shown in Figure 1, full Terrain Cranes primarily of chassis 1, turntable 2, principal arm 3, surpassed support 4, surpassed arm-tie 5, super lift winch 6, surpassed the composition such as steel rope 7, suspension hook 8.
Super lift winch 6, HM Hydraulic Motor 9, tensioning hydro-cylinder 10, lock pin oil cylinder 11 and the second change-over valve 12 and the first change-over valve 13 etc. are housed in each super lifting device as shown in Figure 2.
Having surpassed support 4 is fixed on principal arm 3, surpassed steel rope 7 one end to be connected with principal arm 3 arm head, one end is fixed on super lift winch 6, drives elevator 6 to tighten up surpassed steel rope 7 by HM Hydraulic Motor 9, load certain power at telescopic boom arm head, hang and to be used for balanced load when carrying and to act on the moment of torsion of arm head.Super lift winch 6 realizes the retractable rope action of steel rope 7 under the driving of HM Hydraulic Motor 9, control tensioning hydro-cylinder 10 by lock pin oil cylinder 11 to engage with the ratchet of super lift winch 6 and to separate the locking and opening action that realize super lift winch 6, when lock pin oil cylinder 11 rod chamber oil-feed, tensioning hydro-cylinder 10 engages with ratchet, has been stretched out the tensioning action surpassed by tensioning hydro-cylinder 10.
When hoisting operation, first driving elevator 6 to tighten up by HM Hydraulic Motor 9 and surpassed steel rope 7, carrying out pretension to having surpassed steel rope 7, and then by the ratchet of tensioning hydro-cylinder 10 promotion super lift winch 6, steel rope 7 is tensioned to regulation pulling force or position.In this course, need the cooperation having surpassed lock pin oil cylinder 11, during super lift winch 6 rope closing of HM Hydraulic Motor 9 driving, need the electromagnet 12a of the second change-over valve 12 to obtain electric, the second change-over valve 12 is operated in left position, and P mouth is communicated with A mouth, B mouth is communicated with T mouth, the oil-feed of lock pin oil cylinder 11 rodless cavity, opened by super lift winch 6 ratchet, electromagnet 13a obtains electric afterwards, first change-over valve 13 is operated in left position, P mouth is communicated with A mouth, and B mouth is communicated with T mouth, and HM Hydraulic Motor 9 drives super lift winch 6 rope closing.In rope closing process, the ratchet of superpower elevator 6 should stay open state always, this just requires that lock pin oil cylinder 11 keeps entirely stretching state always, the falling of lock pin oil cylinder 11 phenomenon can not be fallen after rise, because can make tensioning hydro-cylinder 10 occur beating tooth and damaging and cause potential safety hazard with the ratchet of superpower elevator 6.
Different according to operating mode, need to promote superpower elevator 6 by tensioning hydro-cylinder 10 sometimes and rotate rope closing, to carry out further pretension to having surpassed steel rope 7.Because tensioning hydro-cylinder 10 is the ratcheting motion that push super lift winch 6, so when tensioning hydro-cylinder 10 action, tensioning hydro-cylinder 10 needs to rotate around twisted point 14, and this just needs lock pin oil cylinder 11 to be in quick condition.Hinge 14 is positioned at the below of tensioning hydro-cylinder 10, for being hinged with hoisting crane.
As shown in Figure 2, each actuating unit of super lifting device is all having surpassed layout on support 4, comparatively concentrated, all adopts same hydraulic oil source, then give different actuating units by different solenoid directional control valves during design.Surpassing in steel rope 7 pretension process, when surpassed flow less or have a fluctuation time, the fluctuation of pressure of hydraulic efficiency pressure system can make to have surpassed lock pin oil cylinder 11 and occur improper drop, cannot ensure that the ratchet of super lift winch 6 is in open mode, this just cause surpassed tensioning hydro-cylinder 10 and super lift winch 6 beat tooth phenomenon, this has just had a strong impact on this device even safety of complete machine.The generation of this phenomenon should be avoided in the course of the work.
As shown in Figure 3; if increase hydraulic control one-way valve 15 within the system; just the fluid in lock pin oil cylinder 11 rodless cavity can be pinned, although the improper falling of lock pin oil cylinder can be avoided like this, when being but difficult to meet tensioning hydro-cylinder 10 action, lock pin oil cylinder 11 is in the requirement of quick condition.
Summary of the invention
The object of the invention is to overcome above-mentioned the deficiencies in the prior art; a kind of super lift winch latch gear control system is provided; super lift winch can be avoided in the improper falling to lock pin oil cylinder when having surpassed steel rope pretension, ensure that simultaneously and be in quick condition having surpassed lock pin oil cylinder in tensioning hydro-cylinder tensioning process.
Additional aspect of the present invention and advantage will partly be set forth in the following description, and partly will become obvious from description, or can the acquistion by practice of the present invention.
According to an aspect of the present invention, a kind of super lift winch latch gear control system, the second change-over valve comprise super lift winch, driving the first change-over valve of the HM Hydraulic Motor of super lift winch rotation, hydraulic control motor, the tensioning hydro-cylinder with super lift winch adaptation, the lock pin oil cylinder be connected with tensioning hydro-cylinder, control lock pin oil cylinder, the three-position four-way valve of described first change-over valve to be Median Function be O type, the three-position four-way valve of described second change-over valve to be Median Function be Y type, the oil inlet of described second change-over valve is connected with the check valve preventing hydraulic oil from flowing backwards from oil inlet.
According to an embodiment of the present invention, described first change-over valve and the second change-over valve are electromagnetic switch change-over valve.
According to an embodiment of the present invention, described first change-over valve and the second change-over valve are solenoid-operated proportional change-over valve.
Described lock pin oil cylinder is disposed in the below of tensioning hydro-cylinder.
The actuator port A of described second change-over valve is connected with the rodless cavity of lock pin oil cylinder, and actuator port B is connected with the rod chamber of lock pin oil cylinder.
Described lock pin oil cylinder is disposed in the top of tensioning hydro-cylinder.
The actuator port B of described second change-over valve is connected with the rodless cavity of lock pin oil cylinder, and actuator port A is connected with the rod chamber of lock pin oil cylinder.
According to another aspect of the present invention, a kind of hoisting crane, comprises car body, and car body is provided with above-mentioned super lift winch latch gear control system.
As shown from the above technical solution, advantage of the present invention and good effect are:
The present invention surpasses in lift winch latch gear control system, by the oil inlet place at the second change-over valve, check valve is set, when lock pin cylinder efficient, can avoid when hydraulic system pressure fluctuates, hydraulic oil backflow in the rodless cavity of lock pin oil cylinder, when lock pin oil cylinder does not work, quick condition can be in by the meta y-function of the second change-over valve.The invention also discloses the hoisting crane with this super lift winch latch gear control system.
Accompanying drawing explanation
Describe its example embodiment in detail by referring to accompanying drawing, above-mentioned and further feature of the present invention and advantage will become more obvious.
Fig. 1 is the structural representation of existing full Terrain Cranes;
Fig. 2 is the structural representation of existing super lift winch latch gear control system;
Fig. 3 is the another kind of structural representation of existing super lift winch latch gear control system;
Fig. 4 is the schematic diagram of the super lift winch latch gear control system of the embodiment of the present invention.
Detailed description of the invention
More fully example embodiment is described referring now to accompanying drawing.But example embodiment can be implemented in a variety of forms, and should not be understood to be limited to embodiment set forth herein; On the contrary, these embodiments are provided to make the present invention comprehensively with complete, and the design of example embodiment will be conveyed to those skilled in the art all sidedly.Reference numeral identical in figure represents same or similar structure, thus will omit their detailed description.
As shown in Figure 4, super lift winch latch gear control system of the present invention, the second change-over valve 12 comprise super lift winch 6, driving the first change-over valve 13 of the HM Hydraulic Motor 9 of super lift winch 6 rotation, hydraulic control motor 9, the tensioning hydro-cylinder 10 with super lift winch 6 adaptation, the lock pin oil cylinder 11 be connected with tensioning hydro-cylinder 10, control lock pin oil cylinder 11.The bottom of tensioning hydro-cylinder 10 is hinged on hoisting crane by hinge 14, the leading section of the piston rod of lock pin oil cylinder 11 and the outer wall of tensioning hydro-cylinder 10 hinged.In the present embodiment, the first change-over valve 13 and the second change-over valve 12 are electromagnetic switch change-over valve, and in other embodiments, these two change-over valves also can adopt solenoid-operated proportional change-over valve.
The three-position four-way valve of the second change-over valve 12 to be Median Functions be Y type, having four ports, is oil inlet P, oil outlet T, actuator port A and actuator port B respectively, also has two electromagnet, is electromagnet 12a and electromagnet 12b respectively.Actuator port A can be communicated with oil inlet P, and this actuator port A is connected with the rodless cavity of lock pin oil cylinder 11, and actuator port B can be communicated with oil outlet T, and this actuator port B is connected with the rod chamber of lock pin oil cylinder 11.When super lift winch 6 is driven by HM Hydraulic Motor 9, HM Hydraulic Motor 9 is controlled by the first change-over valve 13, the three-position four-way valve of the first change-over valve 13 to be Median Functions be O type, first change-over valve 13 has oil inlet P, oil outlet T, actuator port A and actuator port B equally, also having two electromagnet, is electromagnet 13a and electromagnet 13b respectively.
In the diagram, lock pin oil cylinder 11 is disposed in the below of tensioning hydro-cylinder 10, and the actuator port A of the second change-over valve 12 is connected with the rodless cavity of lock pin oil cylinder 11, and actuator port B is connected with the rod chamber of lock pin oil cylinder 11.In other embodiments of the present invention, lock pin oil cylinder 11 can also be disposed in the top of tensioning hydro-cylinder 10, the actuator port B of the second change-over valve 12 is connected with the rodless cavity of lock pin oil cylinder 11, and actuator port A is connected with the rod chamber of lock pin oil cylinder 11.
Be connected with check valve 16 at the oil inlet P place of the second change-over valve 12, this check valve 16 can prevent hydraulic oil to be back to hydraulic efficiency pressure system from oil inlet.By arranging this check valve 16, the reliability service of lock pin oil cylinder 11 can be ensured.
When HM Hydraulic Motor 9 works, it drives super lift winch 6 to rotate, and requires that tensioning hydro-cylinder 10 leaves super lift winch 6, to avoid interference.In this case, electromagnet 12a obtains electric, second change-over valve 12 is operated in left position, oil inlet P communicates with actuator port A, and actuator port B and oil outlet T-phase are led to, and hydraulic oil enters oil inlet P by check valve 16 and flows into the rodless cavity of lock pin oil cylinder 11 from actuator port A, lock pin oil cylinder 11 rod chamber fluid flows back to fuel tank through actuator port B to oil outlet T, lock pin oil cylinder 11 stretches out, and released from the ratchet of super lift winch 6 by tensioning hydro-cylinder 10, ratchet is opened.Hydraulic oil between check valve to lock pin oil cylinder 11 rodless cavity pins by check valve 16 simultaneously.Even if the flow of hydraulic efficiency pressure system and despite pressure fluctuations, the fluid of lock pin oil cylinder 11 rodless cavity also can not be made to occur backflow phenomenon and cause the falling of lock pin oil cylinder 11.The drop of lock pin oil cylinder 11 when doing so avoids work.
When HM Hydraulic Motor 9 quits work, tensioning hydro-cylinder 10 is now needed to be combined with the ratchet of super lift winch 6, promote super lift winch 6 to rotate, electromagnet 12a and electromagnet 12b dead electricity, second change-over valve 12 is in meta, actuator port A, the actuator port B of the second change-over valve 12 are communicated with oil outlet T, and now the rodless cavity of lock pin oil cylinder 11 is communicated with and passes through oil outlet T through actuator port B with the rod chamber of lock pin oil cylinder 11 by actuator port A and is communicated with fuel tank.Such lock pin oil cylinder 11 is just in quick condition by the meta y-function of the second change-over valve 12, and fluid arbitrarily flows at the rodless cavity of lock pin oil cylinder 11 and rod chamber, so just can follow tensioning hydro-cylinder 10 and stretches out or retract around twisted point 14 rotates time.
The super lift winch latch gear control system that the present invention proposes well avoids the drop occurred due to flow system flow and fluctuation of pressure after lock pin oil cylinder 11 is opened, and meeting again lock pin oil cylinder 11 when tensioning hydro-cylinder 10 works must be in the requirement of quick condition simultaneously.Ensure that the normal work of super lift winch 6, improve the safety of the stability of system, reliability and complete machine.
Present embodiment discloses a kind of hoisting crane, and this hoisting crane comprises car body, and car body is made up of chassis, turntable, principal arm etc., further comprises super lift winch latch gear control system disclosed in the present embodiment.
Below illustrative embodiments of the present invention is illustrate and described particularly.Should be appreciated that, the invention is not restricted to disclosed embodiment, on the contrary, the invention is intended to contain and be included in various amendment in the spirit and scope of claims and equivalent arrangements.
Claims (8)
1. a super lift winch latch gear control system, the second change-over valve comprise super lift winch, driving the first change-over valve of the HM Hydraulic Motor of super lift winch rotation, hydraulic control motor, the tensioning hydro-cylinder with super lift winch adaptation, the lock pin oil cylinder be connected with tensioning hydro-cylinder, control lock pin oil cylinder, the three-position four-way valve of described first change-over valve to be Median Function be O type, the three-position four-way valve of described second change-over valve to be Median Function be Y type, it is characterized in that, the oil inlet of described second change-over valve is connected with the check valve preventing hydraulic oil from flowing backwards from oil inlet.
2. super lift winch latch gear control system according to claim 1, is characterized in that: described first change-over valve and the second change-over valve are electromagnetic switch change-over valve.
3. super lift winch latch gear control system according to claim 1, is characterized in that: described first change-over valve and the second change-over valve are solenoid-operated proportional change-over valve.
4. super lift winch latch gear control system according to claim 1, is characterized in that: described lock pin oil cylinder is disposed in the below of tensioning hydro-cylinder.
5. super lift winch latch gear control system according to claim 4, is characterized in that: the actuator port A of described second change-over valve is connected with the rodless cavity of lock pin oil cylinder, and actuator port B is connected with the rod chamber of lock pin oil cylinder.
6. super lift winch latch gear control system according to claim 1, is characterized in that: described lock pin oil cylinder is disposed in the top of tensioning hydro-cylinder.
7. super lift winch latch gear control system according to claim 4, is characterized in that: the actuator port B of described second change-over valve is connected with the rodless cavity of lock pin oil cylinder, and actuator port A is connected with the rod chamber of lock pin oil cylinder.
8. a hoisting crane, comprises car body, it is characterized in that: on car body, be provided with arbitrary described super lift winch latch gear control system in claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779418.7A CN104495624B (en) | 2014-12-15 | 2014-12-15 | Setting-up elevator latch gear control system and crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410779418.7A CN104495624B (en) | 2014-12-15 | 2014-12-15 | Setting-up elevator latch gear control system and crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104495624A true CN104495624A (en) | 2015-04-08 |
| CN104495624B CN104495624B (en) | 2017-08-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410779418.7A Active CN104495624B (en) | 2014-12-15 | 2014-12-15 | Setting-up elevator latch gear control system and crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104495624B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106115516A (en) * | 2016-08-31 | 2016-11-16 | 太原重型机械集团工程技术研发有限公司 | Crane, super lifting device and pretension steel wire rope control method thereof and system |
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| CN102491174A (en) * | 2011-12-19 | 2012-06-13 | 中联重科股份有限公司 | Crane, method for controlling tension of steel wire rope and hydraulic system |
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| CN102807168A (en) * | 2012-08-13 | 2012-12-05 | 三一重工股份有限公司 | Hydraulic control system of single-cylinder telescoping mechanism of crane and crane |
| CN203048454U (en) * | 2012-12-18 | 2013-07-10 | 沈阳北方交通重工有限公司 | Multifunctional hydraulically controlled variable angle jib |
| CN103420290A (en) * | 2013-07-25 | 2013-12-04 | 三一汽车起重机械有限公司 | Telescopic protection system and crane |
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2014
- 2014-12-15 CN CN201410779418.7A patent/CN104495624B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1266861B1 (en) * | 2001-06-13 | 2003-12-10 | Terex-Demag GmbH & Co. KG | Telescopic crane with a superlift device |
| CN201851425U (en) * | 2010-09-16 | 2011-06-01 | 湖南中联重科专用车有限责任公司 | Two-stage telescopic oil cylinder, hydraulic control system and telescopic mechanism for suspension arm of crane |
| CN202322047U (en) * | 2011-11-24 | 2012-07-11 | 徐州重型机械有限公司 | Super-lift winding control system and cane applying same |
| CN102491174A (en) * | 2011-12-19 | 2012-06-13 | 中联重科股份有限公司 | Crane, method for controlling tension of steel wire rope and hydraulic system |
| CN102431900A (en) * | 2011-12-20 | 2012-05-02 | 中联重科股份有限公司 | Control system of bolt mechanism and crane |
| CN102807168A (en) * | 2012-08-13 | 2012-12-05 | 三一重工股份有限公司 | Hydraulic control system of single-cylinder telescoping mechanism of crane and crane |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106115516A (en) * | 2016-08-31 | 2016-11-16 | 太原重型机械集团工程技术研发有限公司 | Crane, super lifting device and pretension steel wire rope control method thereof and system |
| CN106115516B (en) * | 2016-08-31 | 2018-01-12 | 太原重型机械集团工程技术研发有限公司 | Crane, super lifting device and its pretension steel wire rope control method and system |
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| Publication number | Publication date |
|---|---|
| CN104495624B (en) | 2017-08-25 |
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