CN107720642A - Aerial work platform receives arm-type valve group automatically - Google Patents
Aerial work platform receives arm-type valve group automatically Download PDFInfo
- Publication number
- CN107720642A CN107720642A CN201710798810.XA CN201710798810A CN107720642A CN 107720642 A CN107720642 A CN 107720642A CN 201710798810 A CN201710798810 A CN 201710798810A CN 107720642 A CN107720642 A CN 107720642A
- Authority
- CN
- China
- Prior art keywords
- valve
- proportioning
- proportioning valve
- unicom
- oil cylinder
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
- B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
- B66F11/044—Working platforms suspended from booms
- B66F11/046—Working platforms suspended from booms of the telescoping type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/027—Check valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/16—Special measures for feedback, e.g. by a follow-up device
Abstract
The invention discloses a kind of aerial work platform to receive arm-type valve group automatically, include the first proportioning valve, first proportioning valve and oil inlet UNICOM, the first magnetic valve is connected with first proportioning valve, first magnetic valve is connected with amplitude oil cylinder by amplitude oil cylinder valve block, and first proportioning valve passes through second solenoid valve and oil-out UNICOM；The oil inlet is also associated with the second proportioning valve, second proportioning valve is in parallel with first proportioning valve, and second proportioning valve is parallel with hydraulic control one-way valve, second proportioning valve is also associated with reversal valve, the reversal valve is connected with telescopic cylinder by the first balanced valve and the second balanced valve, lowering valve, the other end and the feedback hydraulic fluid port UNICOM of the lowering valve are connected with second proportioning valve；For the gravitional force stored by using the amplitude oil cylinder after lifting as Emergency power source, and under gravitional force effect, equipment straight-arm, which is retracted, makes speed, reaches the decrease speed for improving equipment and the purpose for reducing energy consumption.
Description
Technical field
The present invention relates to aerial work platform to use field, and in particular to aerial work platform receives arm-type valve group automatically.
Background technology
In the prior art, aerial work platform is used for work high above the ground, the safety and reliability requirement of its own equipment
Relatively examine.In order to improve the reliability of equipment, typically it can all increase all kinds of emergent decline functions in equipment, traditional has manual-operated emergent
Pump etc., but there is the problem of decrease speed is slow, power consumption is high in such a structure, be unfavorable for promoting.
The content of the invention
In order to solve the above technical problems, the present invention proposes aerial work platform receives arm-type valve group automatically, improved with reaching
The decrease speed of equipment and the purpose for reducing energy consumption.
To reach above-mentioned purpose, technical scheme is as follows：
A kind of aerial work platform receives arm-type valve group automatically, includes the first proportioning valve, first proportioning valve and oil-feed
Mouthful UNICOM, the first magnetic valve is connected with first proportioning valve, first magnetic valve is connected with by amplitude oil cylinder valve block
Amplitude oil cylinder, first proportioning valve pass through second solenoid valve and oil-out UNICOM；
The oil inlet is also associated with the second proportioning valve, and second proportioning valve is in parallel with first proportioning valve, and institute
State the second proportioning valve and be parallel with hydraulic control one-way valve, second proportioning valve is also associated with reversal valve, and the reversal valve passes through first
Balanced valve and the second balanced valve are connected with telescopic cylinder, are connected with lowering valve on second proportioning valve, the lowering valve it is another
One end and feedback hydraulic fluid port UNICOM.
The gravitional force that the present invention stores by using the amplitude oil cylinder after lifting is as Emergency power source, and in gravitational potential
Under acting on, equipment straight-arm, which is retracted, makes speed, reaches the decrease speed for improving equipment and the purpose for reducing energy consumption.
As preferable, the reversal valve and oil-out UNICOM.
As preferable, the output end of first proportioning valve is also associated with check valve and overflow valve, the check valve
The other end has UNICOM, the other end and the oil-out UNICOM of the overflow valve with feedback.Utilize the negative of check valve feedback amplitude oil cylinder
Pressure is carried, using the maximum working pressure (MWP) of overflow valve limitation amplitude oil cylinder work, ensure that the safety of work.
The invention has the advantages that：
1. the gravitional force that the present invention stores by using the amplitude oil cylinder after lifting is as Emergency power source, and in gravity
Under potential energy effect, equipment straight-arm, which is retracted, makes speed, reaches the decrease speed for improving equipment and the purpose for reducing energy consumption.
2. the present invention utilizes overflow valve limitation amplitude oil cylinder work using the load pressure of check valve feedback amplitude oil cylinder
Maximum working pressure (MWP), it ensure that the safety of work.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described.
Fig. 1 is the connection diagram that aerial work platform disclosed in the embodiment of the present invention receives arm-type valve group automatically；
Corresponding component title of the numeral represented by with letter in figure：
1. the amplitude oil cylinder of 3. amplitude oil cylinder valve block of the first 2. first magnetic valve of proportioning valve 4.
5. the balanced valve of 6. second proportioning valve of second solenoid valve, 7. hydraulic control one-way valve, 8. reversal valve 9. first
10. the overflow valve of 13. check valve of the second balanced valve 11. telescopic cylinder, 12. lowering valve 14..
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes.
Receive arm-type valve group automatically the invention provides aerial work platform, its operation principle is by using the change after lifting
For the gravitional force of width oil cylinder storage as Emergency power source, and under gravitional force effect, equipment straight-arm, which is retracted, makes speed,
Reach the decrease speed for improving equipment and the purpose for reducing energy consumption.
With reference to embodiment and embodiment, the present invention is further detailed explanation.
As shown in figure 1, a kind of aerial work platform receives arm-type valve group automatically, include the first proportioning valve 1, first ratio
Example valve and oil inlet P UNICOM, the first magnetic valve 2 are connected with first proportioning valve, first magnetic valve passes through luffing oil
Cylinder valve block 3 is connected with amplitude oil cylinder 4, and first proportioning valve passes through second solenoid valve 5 and oil-out T UNICOMs；
The oil inlet is also associated with the second proportioning valve 6, and second proportioning valve is in parallel with first proportioning valve, and institute
State the second proportioning valve and be parallel with hydraulic control one-way valve 7, second proportioning valve is also associated with reversal valve 8, and the reversal valve passes through
One balanced valve 9 and the second balanced valve 10 are connected with telescopic cylinder 11, lowering valve 12 are connected with second proportioning valve, under described
The other end and the feedback hydraulic fluid port LS UNICOMs of valve drop.
The gravitional force that the present invention stores by using the amplitude oil cylinder after lifting is as Emergency power source, and in gravitational potential
Under acting on, equipment straight-arm, which is retracted, makes speed, reaches the decrease speed for improving equipment and the purpose for reducing energy consumption.
It is worth noting that, the reversal valve and oil-out UNICOM.
It is worth noting that, the output end of first proportioning valve is also associated with check valve 13 and overflow valve 14, the list
There are UNICOM, the other end and the oil-out UNICOM of the other end from the overflow valve to valve and feedback.Utilize check valve feedback luffing oil
The load pressure of cylinder, using the maximum working pressure (MWP) of overflow valve limitation amplitude oil cylinder work, it ensure that the safety of work.
The specifically used step of the present invention is as follows：Again as shown in figure 1, when the first proportioning valve 1, the first magnetic valve 2 be powered after P
Mouth oil-feed reaches amplitude oil cylinder 4 by amplitude oil cylinder valve block 3, and now large arm is lifted；After the second proportioning valve 6, reversal valve 8 are powered
The oil-feed of P mouths reaches telescopic oil cylinder 11 by the first balanced valve 9, and now telescopic arm stretches out, because the presence of hydraulic control one-way valve 7 causes
Large arm is lifted to be independent of each other when being acted with telescopic arm.Simultaneously using the load pressure of check valve feedback amplitude oil cylinder, overflow is utilized
The maximum working pressure (MWP) of valve limitation amplitude oil cylinder work, ensure that the safety of work.
Lowering valve 12 is powered with second solenoid valve 5 during normal decline, and amplitude oil cylinder 4 declines.Second proportioning valve 6 and reversal valve
8 retraction position energization telescopic oil cylinder is retracted；
When needing emergent decline, lowering valve 13 is powered, and oil circuit reaches the import of reversal valve 8 by hydraulic control one-way valve 7, this
When reversal valve 8 retraction position be powered, falling pressure oil by the second balanced valve 10 reach telescopic oil cylinder 11 lower decrease, now greatly
Arm declines retracts simultaneously with telescopic arm, and whole process is without other external power supplys.
By way of more than, aerial work platform provided by the present invention receives arm-type valve group automatically, by using lifting
For the gravitional force of amplitude oil cylinder storage afterwards as Emergency power source, and under gravitional force effect, equipment straight-arm, which is retracted, makes speed
Degree is very fast, reaches the decrease speed for improving equipment and the purpose for reducing energy consumption.
Above-described is only the preferred embodiment that aerial work platform disclosed in this invention receives arm-type valve group automatically,
It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise of the invention, it can also do
Go out several modifications and improvements, these belong to protection scope of the present invention.
Claims (3)
1. a kind of aerial work platform receives arm-type valve group automatically, it is characterised in that includes the first proportioning valve, first ratio
Valve and oil inlet UNICOM, the first magnetic valve are connected with first proportioning valve, first magnetic valve passes through amplitude oil cylinder valve
Block is connected with amplitude oil cylinder, and first proportioning valve passes through second solenoid valve and oil-out UNICOM；
The oil inlet is also associated with the second proportioning valve, and second proportioning valve is in parallel with first proportioning valve, and described
Two proportioning valves are parallel with hydraulic control one-way valve, and second proportioning valve is also associated with reversal valve, and the reversal valve passes through the first balance
Valve and the second balanced valve are connected with telescopic cylinder, and lowering valve, the other end of the lowering valve are connected with second proportioning valve
With feedback hydraulic fluid port UNICOM.
2. aerial work platform according to claim 1 receives arm-type valve group automatically, it is characterised in that the reversal valve is with going out
Hydraulic fluid port UNICOM.
3. aerial work platform according to claim 1 receives arm-type valve group automatically, it is characterised in that first proportioning valve
Output end be also associated with check valve and overflow valve, the other end and the feedback of the check valve have a UNICOM, the overflow valve it is another
One end and oil-out UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798810.XA CN107720642A (en) | 2017-09-07 | 2017-09-07 | Aerial work platform receives arm-type valve group automatically |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710798810.XA CN107720642A (en) | 2017-09-07 | 2017-09-07 | Aerial work platform receives arm-type valve group automatically |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107720642A true CN107720642A (en) | 2018-02-23 |
Family
ID=61205914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710798810.XA Pending CN107720642A (en) | 2017-09-07 | 2017-09-07 | Aerial work platform receives arm-type valve group automatically |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107720642A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086962A (en) * | 2020-01-19 | 2020-05-01 | 浙江鼎力机械股份有限公司 | Crank arm type aerial work platform truck power system |
| CN112922915A (en) * | 2021-02-08 | 2021-06-08 | 徐工消防安全装备有限公司 | Platform gravity descending control system and method |
| EP4043382A1 (en) * | 2021-02-11 | 2022-08-17 | Xtreme Manufacturing, LLC | Systems and methods for bleed down and retraction of a construction machine boom |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980011052U (en) * | 1996-08-16 | 1998-05-25 | 김재복 | Two-stage pressure control device for spot welding gun using robot |
| CN205154781U (en) * | 2015-12-02 | 2016-04-13 | 湖南星邦重工有限公司 | Aerial working platform and luffing system thereof |
| CN205187797U (en) * | 2015-12-10 | 2016-04-27 | 合肥亚美科技股份有限公司 | Emergent device of transferring of hydraulic pressure aerial working platform |
| CN106678098A (en) * | 2016-12-30 | 2017-05-17 | 徐州重型机械有限公司 | Crane hydraulic control system and crane |
| CN106829815A (en) * | 2017-03-27 | 2017-06-13 | 徐工消防安全装备有限公司 | The arm support control system and aerial work platform of aerial work platform |
-
2017
- 2017-09-07 CN CN201710798810.XA patent/CN107720642A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19980011052U (en) * | 1996-08-16 | 1998-05-25 | 김재복 | Two-stage pressure control device for spot welding gun using robot |
| CN205154781U (en) * | 2015-12-02 | 2016-04-13 | 湖南星邦重工有限公司 | Aerial working platform and luffing system thereof |
| CN205187797U (en) * | 2015-12-10 | 2016-04-27 | 合肥亚美科技股份有限公司 | Emergent device of transferring of hydraulic pressure aerial working platform |
| CN106678098A (en) * | 2016-12-30 | 2017-05-17 | 徐州重型机械有限公司 | Crane hydraulic control system and crane |
| CN106829815A (en) * | 2017-03-27 | 2017-06-13 | 徐工消防安全装备有限公司 | The arm support control system and aerial work platform of aerial work platform |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111086962A (en) * | 2020-01-19 | 2020-05-01 | 浙江鼎力机械股份有限公司 | Crank arm type aerial work platform truck power system |
| CN112922915A (en) * | 2021-02-08 | 2021-06-08 | 徐工消防安全装备有限公司 | Platform gravity descending control system and method |
| EP4043382A1 (en) * | 2021-02-11 | 2022-08-17 | Xtreme Manufacturing, LLC | Systems and methods for bleed down and retraction of a construction machine boom |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180223 |
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| RJ01 | Rejection of invention patent application after publication |