CN105438995B - A kind of crane forbids the device and method of composition operation - Google Patents
A kind of crane forbids the device and method of composition operation Download PDFInfo
- Publication number
- CN105438995B CN105438995B CN201511008949.7A CN201511008949A CN105438995B CN 105438995 B CN105438995 B CN 105438995B CN 201511008949 A CN201511008949 A CN 201511008949A CN 105438995 B CN105438995 B CN 105438995B
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- valve
- pilot operated
- operation valve
- pressure oil
- operated valve
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Classifications
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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
- B66C15/00—Safety gear
-
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Control And Safety Of Cranes (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides the device and method that a kind of crane forbids composition operation, device at least includes forced feed oil circuit, return line, first pilot operated valve device, second pilot operated valve device, 3rd pilot operated valve device, first operation valve, second operation valve, 3rd operation valve, two output pressure oil circuits of the first operation valve lead to second by shuttle valve through first pressure oil pipe line, 3rd pilot operated valve device, two output pressure oil circuits of the second operation valve lead to the first pilot operated valve device by shuttle valve through second pressure oil pipe line, 3rd pilot operated valve device, two output pressure oil circuits of the 3rd operation valve lead to the first pilot operated valve device by shuttle valve through the 3rd pressure oil pipeline, second pilot operated valve device, each output pressure oil circuit is additionally coupled to main hydraulicdirectional control valve simultaneously.Method uses hydraulic control scheme, using the interlocking of hydraulic circuit, when realizing an operation circuit action, other loop decompressions, and the purpose of an operation can only once be carried out by reaching.It is of the invention effectively to suppress composition operation, more preferably ensure crane operation security.
Description
Technical field
The present invention relates to crane operation technical field, and in particular to a kind of crane forbids device and the side of composition operation
Method.
Background technology
As the manufacturing firm of crane, the advanced of performance is often pursued, the machine of design has the function of composition operation.
Building site also likes using composition operation in use, crane driver is many times, for example, turned round in walking, side luffing
While hook up, or size hook links together, and What is more uses both hands and feet combined operation together, however, because the environment at scene is answered
It is miscellaneous, or driver attention not enough concentrates, composition operation often results in various accidents.At present, except being made with operational procedure etc.
Degree carries out composition operation to constrain driver, can also be preferably configured on hardware, allow operator's composition operation to become impossible.
The content of the invention
The technical problem to be solved in the present invention is that there is provided one for existing crane composition operation above shortcomings
The device and method that crane forbids composition operation is planted, a locking system is set up in device interior, composition operation is become not
May, to better ensure that security.
The present invention is for the technical scheme that is used of solution above-mentioned technical problem：
A kind of crane forbids the device of composition operation, at least including forced feed oil circuit, return line, the first hydraulic control
Valve, the second pilot operated valve device, the 3rd pilot operated valve device, the first operation valve, the second operation valve, the 3rd operation valve, forced feed oil circuit lead to respectively
Cross the first pilot operated valve device, the second pilot operated valve device, the 3rd pilot operated valve device and the first operation valve, the second operation valve, the input pressure of the 3rd operation valve
Power oil circuit is connected, and return line is connected with the first operation valve, the second operation valve, the 3rd operation valve respectively, and the two of the first operation valve
Individual output pressure oil circuit leads to the second pilot operated valve device, the 3rd pilot operated valve device by shuttle valve through first pressure oil pipe line, the second operation valve
Two output pressure oil circuits lead to the first pilot operated valve device, the 3rd pilot operated valve device, the 3rd operation valve by shuttle valve through second pressure oil pipe line
Two output pressure oil circuits by shuttle valve through the 3rd pressure oil pipeline lead to the first pilot operated valve device, the second pilot operated valve device；Described first
Two output pressure oil circuits of operation valve, two output pressure oil circuits of the second operation valve, two output pressures of the 3rd operation valve
Power oil circuit is additionally coupled to main hydraulicdirectional control valve simultaneously.
By such scheme, be respectively arranged with first operation valve, the second operation valve and the 3rd operation valve first handle,
Second handle, the 3rd handle.
By such scheme, first operation valve, the second operation valve and the 3rd operation valve are hydraulic control valve.
The device of composition operation is forbidden to forbid the method for composition operation present invention also offers a kind of above-mentioned crane, including
Following steps：
1）By the first pilot operated valve device, the second pilot operated valve device, the 3rd pilot operated valve device control respectively the first operation valve, the second operation valve,
3rd operation valve and the break-make of forced feed oil circuit；The on off operating mode of first pilot operated valve device is by the second operation valve, the 3rd operation valve
Output pressure signal is controlled；The on off operating mode of second pilot operated valve device by the first operation valve, the 3rd operation valve output pressure signal control
System；The on off operating mode of 3rd pilot operated valve device is controlled by the output pressure signal of the first operation valve, the second operation valve；
2）Original state, the first handle of the first operation valve, the second handle of the second pilot operated valve device, the 3rd of the 3rd pilot operated valve device the
When handle is all in middle position, the first pilot operated valve device, the second pilot operated valve device, the 3rd pilot operated valve device are all in conducting state；
3）When the first operation valve is operated by first handle, a foundation in two output oil ports of the first operation valve
This pressure signal, first pressure oil pipe line is fetched into by shuttle valve by pressure, and pressure oil pipeline controls the second pilot operated valve device and the
Three pilot operated valve devices are in cut-off state, and the input pressure oil circuit of the second operation valve and the 3rd operation valve is cut off（With forced feed oil
Road is cut off）No matter now whether the second handle of the second operation valve and the 3rd handle of the 3rd operation valve are pulled, the second operation valve
Two output pressure oil circuits and the 3rd operation valve two output pressure oil circuits all without pressure signal set up, they are connected
Main hydraulicdirectional control valve also do not commutate, corresponding hydraulic motor and hoisting mechanism are also failure to actuate（Just as do not pull second handle,
3rd handle is the same）；
4）When the second operation valve is operated by second handle, with step 3）Operation principle, no matter first operation valve
Whether first handle, the 3rd handle of the 3rd operation valve are pulled, two output pressure oil circuits of the first operation valve, the 3rd operation valve
Two output pressure oil circuits all without pressure signal set up；It is also similarly when the 3rd operation valve is operated by the 3rd handle；
5）If several operation handles are promoted simultaneously, first pressure oil pipe line, second pressure oil pipe line, the 3rd pressure oil pipe
One in road is first set up pressure, once one of pressure oil pipeline first sets up pressure signal, at once by by first
Input pressure oil circuit and pressure of the hydraulic control valve group that operation valve, the second operation valve and the 3rd operation valve are constituted two other operation valve
Power oil feeding line is cut off, it is ensured that only one of which operation valve events are realized.
By such scheme, the hydraulic control valve group is expanded to more than an operation valve, and each operation valve is correspondingly arranged pilot operated valve device, hand
Handle and output pressure oil circuit.
The operation principle of the present invention：Using hydraulic control scheme, using the interlocking of hydraulic circuit, an operation circuit is realized
During action, other loop decompressions, the purpose of an operation can only once be carried out by reaching.
The present invention has following major advantage compared with prior art：Do not changing the premise of bridge operation system appearance
Under, by setting hydraulic valve bank under cab floor, effectively suppress composition operation so that composition operation becomes impossible, more preferably
Ground ensures crane operation security.
Brief description of the drawings
Fig. 1 is that crane of the embodiment by taking the interlocking between three hydraulic control valves as an example forbids the structure of composition operation to show
It is intended to；
In figure, the hydraulic control valves of 1- first, the hydraulic control valves of 2- second, the hydraulic control valves of 3- the 3rd, 4- first handles, 5-
Second handle, the handles of 6- the 3rd.
Embodiment
Below according to specific embodiment and with reference to accompanying drawing, the present invention is further detailed explanation.
Shown in reference picture 1, crane of the present invention forbids the device of composition operation, at least including forced feed oil circuit
P, return line T, the first pilot operated valve device YK1, the second pilot operated valve device YK2, the 3rd pilot operated valve device YK3, the first operation valve 1, the second operation valve
2nd, the 3rd operation valve 3, forced feed oil circuit P passes through the first pilot operated valve device YK1, the second pilot operated valve device YK2, the 3rd pilot operated valve device YK3 respectively
It is connected with the input pressure oil circuit of the first operation valve 1, the second operation valve 2, the 3rd operation valve 3, return line T is grasped with first respectively
Make valve 1, the second operation valve 2, the 3rd operation valve 3 to connect, two output pressure oil circuits A1, B1 of the first operation valve 1 pass through shuttle valve
Lead to the second pilot operated valve device YK2, the 3rd pilot operated valve device YK3, two pressure oil outputs of the second operation valve 2 through first pressure oil pipe line K1
Road A2, B2 lead to the first pilot operated valve device YK1, the 3rd pilot operated valve device YK3, the 3rd operation valve 3 by shuttle valve through second pressure oil pipe line K2
Two output pressure oil circuit A3, B3 by shuttle valve through the 3rd pressure oil pipeline K3 lead to the first pilot operated valve device YK1, the second pilot operated valve device
YK2, two output pressure oil circuits A1, B1 of the first operation valve 1, two output pressures oil circuit A2, B2 of the second operation valve 2, the
Two output pressure oil circuit A3, B3 of three operation valves 3 are additionally coupled to main hydraulicdirectional control valve simultaneously, directly control the lifting behaviour of elevator
Make.
Be respectively arranged with first operation valve 1, the second operation valve 2 and the 3rd operation valve 3 first handle 4, second handle 5,
3rd handle 6.
First operation valve 1, the second operation valve 2 and the 3rd operation valve 3 are hydraulic control valve.
Crane of the present invention forbids the device of composition operation to forbid the method for composition operation, comprises the following steps：
1）First operation valve 1, are controlled by the first pilot operated valve device YK1, the second pilot operated valve device YK2, the 3rd pilot operated valve device YK3 respectively
The break-make of two operation valves 2, the 3rd operation valve 3 and forced feed oil circuit P；First pilot operated valve device YK1 on off operating mode is by the second operation
The output pressure signal control of valve 2, the 3rd operation valve 3；Second pilot operated valve device YK2 on off operating mode is grasped by the first operation valve the 1, the 3rd
Make the output pressure signal control of valve 3；3rd pilot operated valve device YK3 on off operating mode by the first operation valve 1, the second operation valve 2 it is defeated
Go out pressure signal control；
2）Original state, the first handle 4 of the first operation valve 1, the second handle 5 of the second pilot operated valve device 2, the 3rd pilot operated valve device 3
The 3rd handle 6 all in middle position when, the first pilot operated valve device YK1, the second pilot operated valve device YK2, the 3rd pilot operated valve device YK3 all in conducting shape
State；
3）When the first operation valve 1 is operated by first handle 4, in two output oil ports A1, B1 of the first operation valve 1
One is set up pressure, and this pressure signal is fetched into first pressure oil pipe line K1 by shuttle valve, pressure oil pipeline K1 controls the
Two pilot operated valve device YK2 and the 3rd pilot operated valve device YK3 are in the input pressure oil circuit of cut-off state, the second operation valve 2 and the 3rd operation valve 3
It is cut off（Cut off with forced feed oil circuit P）No matter, now the 3rd of the operation valve 3 of second handle 5 and the 3rd of the second operation valve 2
Whether handle 6 is pulled, output pressure oil circuit A2, B2 of the second operation valve 2 and output pressure oil circuit A3, B3 of the 3rd operation valve 3
All set up without pressure signal, the main hydraulicdirectional control valve that they are connected also does not commutate, corresponding hydraulic motor and hoisting mechanism
Also it is failure to actuate（Just as not pulling second handle 5, the 3rd handle 6）；
4）When the second operation valve 2 is operated by second handle 5, with step 3）Operation principle, no matter the first operation valve 1
First handle 4, the 3rd handle 6 of the 3rd operation valve 3 whether pull, the output pressure oil circuit A1 of the first operation valve 1, B1,
Output pressure oil circuit A3, B3 of three operation valves 3 are set up without pressure signal；When the 3rd operation valve 3 is operated by the 3rd handle 6
When, it is also similarly；
5）If several operation handles are promoted simultaneously, first pressure oil pipe line K1, second pressure oil pipe line K2, the 3rd pressure
One in oil pipe line K3 is first set up pressure, once one of pressure oil pipeline first sets up pressure signal, is passed through at once
Input pressure of the hydraulic control valve group being made up of the first operation valve 1, the second operation valve 2 and the 3rd operation valve 3 two other operation valve
Power oil circuit is cut off with forced feed oil circuit P, it is ensured that only one of which operation valve events are realized.
Fig. 1 is the locking principle of two or more operation valve using the interlocking between three hydraulic control valves as example
Equally, the engineer of this area can be carried out implementing.
Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and is not to the present invention
The restriction of embodiment.For those of ordinary skill in the field, it can also be made on the basis of the above description
Its various forms of changes or variation.And the obvious changes or variations that these spirit for belonging to the present invention are extended out is still
Among protection scope of the present invention.
Claims (4)
1. a kind of crane forbids the device of composition operation, at least including forced feed oil circuit, return line, the first pilot operated valve device,
Second pilot operated valve device, the 3rd pilot operated valve device, the first operation valve, the second operation valve, the 3rd operation valve, forced feed oil circuit pass through respectively
The input pressure of one pilot operated valve device, the second pilot operated valve device, the 3rd pilot operated valve device and the first operation valve, the second operation valve, the 3rd operation valve is oily
Road is connected, and return line is connected with the first operation valve, the second operation valve, the 3rd operation valve respectively, and two of the first operation valve are defeated
Go out pressure oil circuit and the second pilot operated valve device, the 3rd pilot operated valve device, two of the second operation valve are led to through first pressure oil pipe line by shuttle valve
Output pressure oil circuit leads to the first pilot operated valve device, the 3rd pilot operated valve device, the two of the 3rd operation valve by shuttle valve through second pressure oil pipe line
Individual output pressure oil circuit leads to the first pilot operated valve device, the second pilot operated valve device by shuttle valve through the 3rd pressure oil pipeline；First operation
Two output pressure oil circuits of valve, two output pressure oil circuits of the second operation valve, two pressure oil outputs of the 3rd operation valve
Road is additionally coupled to main hydraulicdirectional control valve simultaneously.
2. crane as claimed in claim 1 forbids the device of composition operation, it is characterised in that first operation valve,
First handle, second handle, the 3rd handle are respectively arranged with two operation valves and the 3rd operation valve.
3. crane as claimed in claim 1 forbids the device of composition operation, it is characterised in that first operation valve,
Two operation valves and the 3rd operation valve are hydraulic control valve.
The crane described in 4. a kind of the claims 1 ~ 3 are one of any forbids the device of composition operation to forbid composition operation
Method, it is characterised in that comprise the following steps：
1）First operation valve, the second operation valve, the 3rd are controlled by the first pilot operated valve device, the second pilot operated valve device, the 3rd pilot operated valve device respectively
Operation valve and the break-make of forced feed oil circuit；The on off operating mode of first pilot operated valve device by the second operation valve, the 3rd operation valve output
Pressure signal is controlled；The on off operating mode of second pilot operated valve device is controlled by the output pressure signal of the first operation valve, the 3rd operation valve；The
The on off operating mode of three pilot operated valve devices is controlled by the output pressure signal of the first operation valve, the second operation valve；
2）Original state, the first handle of the first operation valve, the second handle of the second pilot operated valve device, the 3rd handle of the 3rd pilot operated valve device
During all in middle position, the first pilot operated valve device, the second pilot operated valve device, the 3rd pilot operated valve device are all in conducting state；
3）When the first operation valve is operated by first handle, one in two output oil ports of the first operation valve is set up pressure
This pressure signal, is fetched into first pressure oil pipe line, first pressure oil pipe line controls the second pilot operated valve device by signal by shuttle valve
Cut-off state is in the 3rd pilot operated valve device, the input pressure oil circuit of the second operation valve and the 3rd operation valve is cut off, no matter now
Whether the second handle of second operation valve and the 3rd handle of the 3rd operation valve are pulled, two pressure oil outputs of the second operation valve
Two output pressure oil circuits of road and the 3rd operation valve are all set up without pressure signal, the main hydraulicdirectional control valve that they are connected
Do not commutate, corresponding hydraulic motor and hoisting mechanism are also failure to actuate；
4）When the second operation valve is operated by second handle, with step 3）Operation principle, no matter the first of the first operation valve
Whether handle, the 3rd handle of the 3rd operation valve are pulled, two output pressure oil circuits of the first operation valve, the two of the 3rd operation valve
Individual output pressure oil circuit is all set up without pressure signal；When the 3rd operation valve is operated by the 3rd handle, also with step 3）'s
Operation principle；
5）If several operation handles are promoted, in first pressure oil pipe line, second pressure oil pipe line, the 3rd pressure oil pipeline simultaneously
One first set up pressure signal, once one of pressure oil pipeline first sets up pressure signal, at once by by first
Input pressure oil circuit and pressure of the hydraulic control valve group that operation valve, the second operation valve and the 3rd operation valve are constituted two other operation valve
Power oil feeding line is cut off, it is ensured that only one of which operation valve events are realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008949.7A CN105438995B (en) | 2015-12-29 | 2015-12-29 | A kind of crane forbids the device and method of composition operation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008949.7A CN105438995B (en) | 2015-12-29 | 2015-12-29 | A kind of crane forbids the device and method of composition operation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105438995A CN105438995A (en) | 2016-03-30 |
| CN105438995B true CN105438995B (en) | 2017-07-21 |
Family
ID=55549720
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511008949.7A Active CN105438995B (en) | 2015-12-29 | 2015-12-29 | A kind of crane forbids the device and method of composition operation |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2705438Y (en) * | 2004-05-17 | 2005-06-22 | 梁坚 | Central driven crane safety protector |
| CN1673554A (en) * | 2004-03-22 | 2005-09-28 | 沃尔沃建造设备控股（瑞典）有限公司 | Method of controlling travel of construction heavy equipment with electronic joysticks |
| CN1827928A (en) * | 2005-03-04 | 2006-09-06 | 日立建机株式会社 | Safety device and service system for operation mechanism |
| CN101269781A (en) * | 2008-04-24 | 2008-09-24 | 奇瑞汽车股份有限公司 | Industrial production sling safety system and security protection method |
| CN101952517A (en) * | 2008-02-20 | 2011-01-19 | 卡特彼勒Sarl公司 | Interference prevention control device for operating machinery |
| CN103640975A (en) * | 2013-12-03 | 2014-03-19 | 中联重科股份有限公司 | Hydraulic control handle system |
-
2015
- 2015-12-29 CN CN201511008949.7A patent/CN105438995B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1673554A (en) * | 2004-03-22 | 2005-09-28 | 沃尔沃建造设备控股（瑞典）有限公司 | Method of controlling travel of construction heavy equipment with electronic joysticks |
| CN2705438Y (en) * | 2004-05-17 | 2005-06-22 | 梁坚 | Central driven crane safety protector |
| CN1827928A (en) * | 2005-03-04 | 2006-09-06 | 日立建机株式会社 | Safety device and service system for operation mechanism |
| CN101952517A (en) * | 2008-02-20 | 2011-01-19 | 卡特彼勒Sarl公司 | Interference prevention control device for operating machinery |
| CN101269781A (en) * | 2008-04-24 | 2008-09-24 | 奇瑞汽车股份有限公司 | Industrial production sling safety system and security protection method |
| CN103640975A (en) * | 2013-12-03 | 2014-03-19 | 中联重科股份有限公司 | Hydraulic control handle system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105438995A (en) | 2016-03-30 |
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