CN105425897B - A kind of electromagnetic location handle - Google Patents
A kind of electromagnetic location handle Download PDFInfo
- Publication number
- CN105425897B CN105425897B CN201510811730.4A CN201510811730A CN105425897B CN 105425897 B CN105425897 B CN 105425897B CN 201510811730 A CN201510811730 A CN 201510811730A CN 105425897 B CN105425897 B CN 105425897B
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- Prior art keywords
- valve
- electric magnet
- handle
- air relief
- relief valve
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05G—CONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
- G05G1/00—Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
- G05G1/08—Controlling members for hand actuation by rotary movement, e.g. hand wheels
- G05G1/10—Details, e.g. of discs, knobs, wheels or handles
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The present invention relates to a kind of electromagnetic location handle, includes handle, push rod, valve body, air relief valve and electromagnetic locking part；Electromagnetic locking part includes electric magnet, electric magnet limiting plate, pressure conversion device and controlling switch；Electric magnet is fixedly connected with the handle；Electric magnet limiting plate is fixedly connected with the valve body；Controlling switch is electrically connected with electric magnet；Pressure conversion device includes hydraulic means and pressure conversion electric signaling device；Hydraulic means is connected by pipeline with air relief valve；Pressure conversion electric signaling device is electrically connected with controlling switch.The present invention determines locking member by electromagnetism is arranged on electromagnetic location handle; when the operation to engineering machinery; push rod is driven to promote the bounce of the back-moving spring of air relief valve by handle so that be powered between electric magnet and electric magnet limiting plate protection attracting state, so as to ensure stablizing for handle.
Description
Technical field
The invention belongs to the hydraulic operation technical field of engineering machinery, particularly relates to a kind of electromagnetic location handle.
Background technology
In engineering machinery, the operation for needing by control crank to control engineering machinery, existing control crank are mounted on
In driving cabin.When being controlled engineering machinery by control crank, need in some cases to keep certain action for a long time,
Operator's long-time hand control control crank is accomplished by so, once handss leave control crank, the action of engineering machinery is just
Change can be produced, and such change sometimes results in whole work and goes wrong, or even serious safety problem occurs.
On the other hand operator keep an action for a long time, can increase the fatigue of operator, when there is operator
When the operation of member produces little change, the accuracy of engineering machinery is also influenced whether, and operator is hindered to other actions
Control.
The content of the invention
It is an object of the invention to provide a kind of electromagnetic location handle, by the technical program, can keep operation handle to protect
Hold a stable working condition, and liberate the long-time manual mode of operator, while can also realize that operator are same
The other actions of Shi Jinhang.
The present invention is achieved by the following technical solutions：
A kind of electromagnetic location handle, includes handle, push rod, valve body, air relief valve and electromagnetic locking part；
The handle is connected with the push rod；The push rod is connected with the valve body；The air relief valve is arranged at the valve
In vivo；The push rod is flexibly connected with the air relief valve；
The electromagnetic locking part includes electric magnet, electric magnet limiting plate, pressure conversion device and controlling switch；
The electric magnet is fixedly connected with the handle；The electric magnet limiting plate is fixedly connected with the valve body；It is described
Be powered between electric magnet and the electric magnet limiting plate adhesive；
The controlling switch is electrically connected with the electric magnet；
The pressure conversion device includes hydraulic means and pressure conversion electric signaling device；The hydraulic means with it is described
Air relief valve is connected by pipeline；The pressure conversion electric signaling device is electrically connected with the controlling switch.
The air relief valve includes valve chamber, valve element, relief spring and back-moving spring；The valve element, the relief spring and
The back-moving spring is may be contained within the valve chamber；
The relief spring is placed on the valve element with the back-moving spring；
The lower end of the push rod is flexibly connected with the upper end of the valve element；The valve chamber is provided with and control port, oil-feed
The oil circuit that mouth and accumulator are communicated.
The relief spring is located between the valve element and the back-moving spring.
The air relief valve is four, respectively the first air relief valve, the second air relief valve, the 3rd air relief valve and the 4th air relief valve.
Connected by pipeline between the hydraulic means and first air relief valve.
The hydraulic means is high hydraulic valve.
The controlling switch is arranged on the handle.
The invention has the beneficial effects as follows：
The present invention determines locking member by electromagnetism is arranged on electromagnetic location handle, when the operation to engineering machinery, leads to
Receive and distribute the bounce that the dynamic push rod of grip strip promotes the back-moving spring of air relief valve so that be powered between electric magnet and electric magnet limiting plate and protect
Shield attracting state, so as to ensure stablizing for handle.
Description of the drawings
Fig. 1 is the structural representation of electromagnetic location handle of the present invention；
The structural representation that Fig. 2 is gone after handle for Fig. 1；
A portion enlarged drawings of the Fig. 3 for Fig. 1.
Description of reference numerals
1 handle, 2 push rods, 3 air relief valve, 4 valve bodies, 5 electric magnet, 6 electric magnet limiting plates, 7 valve elements, 8 relief springs, 9 reset
Spring, 10 control ports, 11 oil-ins, 12 accumulators, 13 controlling switches, 14 spool bores.
Specific embodiment
By the following examples describing technical scheme in detail, below example be only it is exemplary, only
Can be used for explaining and illustrating technical scheme, and be not to be construed as the restriction to technical solution of the present invention.
The present invention provides a kind of electromagnetic location handle, includes handle 1, push rod 2, valve body 4, decompression as shown in Figure 1 to Figure 3
Valve 3 and electromagnetic locking part.In present embodiments, valve body is prior art, and the technical scheme of the application does not have
The structure of valve body is improved, therefore, in this application, the structure of valve body is not described in detail.
The handle is connected with the push rod；The push rod is connected with the valve body；In this application, the structure of handle and
Handle is prior art with the annexation of push rod, i.e., by the motion of control crank, while driving putter action.In this Shen
Please in, the annexation between push rod and valve body also be prior art, in this application do not have between push rod and valve body
Annexation is improved.
The air relief valve 3 is arranged in the valve body 4；In the present embodiment, the air relief valve being arranged in valve body has four
Individual, respectively the first air relief valve, the second air relief valve, the 3rd air relief valve and the 4th air relief valve, four air relief valve are uniform in valve body
Distribution.The push rod 2 is flexibly connected with the air relief valve 3；The structure of each air relief valve is essentially identical, i.e., include valve chamber,
Valve element 7, relief spring 8 and back-moving spring 9；The valve element 7, the relief spring 8 and the back-moving spring 9 may be contained within described
In valve chamber；The relief spring is placed on the valve element with the back-moving spring；The relief spring be located at the valve element with
Between the back-moving spring.Concrete structure is placed on valve element for relief spring；Back-moving spring is placed on relief spring and forms multiple covering
Structure.
The lower end of the push rod is flexibly connected with the upper end of four valve elements respectively；The valve chamber is provided with and control port
10th, the oil circuit that oil-in 11 and accumulator 12 are communicated, each air relief valve correspond to a control port, i.e. the first air relief valve and the
One control port is connected, and the second air relief valve is connected with the second control port, and the 3rd air relief valve is connected with the 3rd control port, and the 4th
Air relief valve is connected with the 4th control port.
The electromagnetic locking part includes electric magnet 5, electric magnet limiting plate 6, pressure conversion device and controlling switch 13；
The controlling switch 13 is arranged on the handle 1.In the present embodiment, an electromagnetic locking part is provided with, in the application
Other embodiments in, can be arranged as required to multiple electromagnetic locking parts, but need only to ensure each electromagnetic locking part
Corresponding with an air relief valve, in the present embodiment, electromagnetic locking part is corresponding with the first air relief valve.
The electric magnet 5 is fixedly connected with the handle 1；The electric magnet limiting plate 6 is fixedly connected with the valve body 4；
Be powered between the electric magnet 5 and the electric magnet limiting plate 6 adhesive；The controlling switch is electrically connected with the electric magnet.
The pressure conversion device includes hydraulic means and pressure conversion electric signaling device；In this application, the liquid
Press-fit and be set to high hydraulic valve, high pressure herein is referred to higher than valve body internal control liquefaction pressure, the hydraulic means and the first air relief valve
Connected by pipeline；The pressure conversion electric signaling device is electrically connected with the controlling switch.
When without operational motion, handle 1 is maintained at into neutral position by the back-moving spring 9 of air relief valve.When handle is rotated
When, push rod overcomes the power of back-moving spring and relief spring, and now, under the promotion of relief spring 8, valve element 7 is moved downward to be blocked
Accumulator, i.e., the pipeline blocked between accumulator and valve chamber first so that valve chamber is by spool bore 14 and control port and oil-feed
Mouth connection, when the fluid pressure balance that the power of valve element and relief spring is produced with control port, completes to control.Now, reset bullet
Spring produces bounce by the precommpression of spring, when push rod is depressed into set point position, makes electric magnet and electric magnet limiting plate logical
Electricity simultaneously keeps attracting state, realizes electromagnetic location.Oil circuit when electromagnetic location is realized, between control port and high hydraulic valve
Keep connected state.
Due to the interaction between valve element and relief spring, the pressure of corresponding control port and the stroke of push rod into than
Example, thus it is proportional to the turned position of handle.
When handle keeps steady statue, realize that electric magnet and electric magnet limiting plate release adhesive by two methods, one
The situation of kind is to need to be adjusted handle, by using controlling switch so that electric magnet power-off, releases adhesive；Another kind of feelings
Condition is, when the work of engineering machinery is hindered, the hydraulic coupling of now control port is improved, and the raising of the hydraulic coupling passes through liquid
Force feed passes to high hydraulic valve, because the high hydraulic valve in the application is to change to realize by the fluid pressure of control port
Adjustment to high hydraulic valve, because the change of control port pressure so that high hydraulic valve is realized adjusting, and high hydraulic valve
Adjustment cause pressure signal to be converted to the signal of telecommunication by pressure conversion electric signaling device to be supplied to controlling switch, when the signal of telecommunication
When change reaches the controlling switch initiation value of setting, controlling switch causes electric magnet power-off, releases electric magnet spacing with electric magnet
The adhesive of plate such that it is able to which handle is adjusted again.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding can carry out various changes, modification, replacement to these embodiments without departing from the principles and spirit of the present invention
And modification, the scope of the present invention is by claims and its is equal to limit.
Claims (4)
1. a kind of electromagnetic location handle, it is characterised in that：Include handle, push rod, valve body, air relief valve and electromagnetic locking part；
The handle is connected with the push rod；The push rod is connected with the valve body；The air relief valve is arranged in the valve body；
The push rod is flexibly connected with the air relief valve；
The electromagnetic locking part includes electric magnet, electric magnet limiting plate, pressure conversion device and controlling switch；
The electric magnet is fixedly connected with the handle；The electric magnet limiting plate is fixedly connected with the valve body；The electromagnetism
Be powered between ferrum and the electric magnet limiting plate adhesive；
The controlling switch is electrically connected with the electric magnet；
The pressure conversion device includes hydraulic means and pressure conversion electric signaling device；The hydraulic means and the decompression
Valve is connected by pipeline；The pressure conversion electric signaling device is electrically connected with the controlling switch；The air relief valve is four, point
Wei not the first air relief valve, the second air relief valve, the 3rd air relief valve and the 4th air relief valve；
Connected by pipeline between the hydraulic means and first air relief valve；
The hydraulic means is high hydraulic valve.
2. electromagnetic location handle according to claim 1, it is characterised in that：The air relief valve includes valve chamber, valve element, subtracts
Pressing spring and back-moving spring；The valve element, the relief spring and the back-moving spring are may be contained within the valve chamber；
The relief spring is placed on the valve element with the back-moving spring；
The lower end of the push rod is flexibly connected with the upper end of the valve element；The valve chamber be provided with control port, oil-in and
The oil circuit that accumulator is communicated.
3. electromagnetic location handle according to claim 2, it is characterised in that：The relief spring is located at the valve element and institute
State between back-moving spring.
4. electromagnetic location handle according to claim 1, it is characterised in that：The controlling switch is arranged at the handle
On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811730.4A CN105425897B (en) | 2015-11-20 | 2015-11-20 | A kind of electromagnetic location handle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510811730.4A CN105425897B (en) | 2015-11-20 | 2015-11-20 | A kind of electromagnetic location handle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105425897A CN105425897A (en) | 2016-03-23 |
| CN105425897B true CN105425897B (en) | 2017-03-29 |
Family
ID=55504163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510811730.4A Active CN105425897B (en) | 2015-11-20 | 2015-11-20 | A kind of electromagnetic location handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105425897B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10642307B2 (en) * | 2018-03-20 | 2020-05-05 | Sensata Technologies, Inc. | Apparatus for removing a joystick grip |
| CN114508150B (en) * | 2022-03-15 | 2023-08-08 | 斗山工程机械（中国）有限公司 | Rotary driving equipment of excavator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001062566A1 (en) * | 2000-02-25 | 2001-08-30 | Continental Teves Ag & Co. Ohg | Electromagnetic valve |
| CN202834333U (en) * | 2011-12-05 | 2013-03-27 | 宁波弗莱格液压有限公司 | Handle |
| CN102758807A (en) * | 2012-06-19 | 2012-10-31 | 安徽金达利液压有限公司 | Electromagnetic positioning and pressure reducing type proportional pilot valve |
| CN203673386U (en) * | 2014-01-22 | 2014-06-25 | 柳州柳工挖掘机有限公司 | Electric hydraulic controlled handle |
| CN104214410A (en) * | 2014-07-11 | 2014-12-17 | 柳州柳工液压件有限公司 | Manual pressure-reducing type pilot valve |
| CN104265718B (en) * | 2014-09-28 | 2016-04-27 | 贵州宏安制动器科技有限公司 | There is the handle pilot valve of float function |
-
2015
- 2015-11-20 CN CN201510811730.4A patent/CN105425897B/en active Active
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| Publication number | Publication date |
|---|---|
| CN105425897A (en) | 2016-03-23 |
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