CN107089627A - A kind of protection system applied to aerial work platform arm support end of travel protecting against shock - Google Patents
A kind of protection system applied to aerial work platform arm support end of travel protecting against shock Download PDFInfo
- Publication number
- CN107089627A CN107089627A CN201710499666.XA CN201710499666A CN107089627A CN 107089627 A CN107089627 A CN 107089627A CN 201710499666 A CN201710499666 A CN 201710499666A CN 107089627 A CN107089627 A CN 107089627A
- Authority
- CN
- China
- Prior art keywords
- travel
- protection system
- work platform
- protecting against
- aerial work
- 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
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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
-
- 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
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/006—Safety devices, e.g. for limiting or indicating lifting force for working platforms
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a kind of protection system applied to aerial work platform arm support end of travel protecting against shock; it is characterized in that; including large arm lifting switch, proximity transducer, control module, hand-held analyzer and control valve; detection body (3) is welded on shaft sleeve of pin shaft; electric signal is passed to control module by the proximity transducer, and the control module is connected with large arm lifting switch, control valve and hand-held analyzer respectively.The present invention is in non-end of travel region, and main boom still can lift according to normal speed, and trigger sensor is just only understood when close to 5 ° of end of travel makes main boom forced deceleration.It ensure that the high efficiency of lifting.
Description
Technical field
The present invention relates to work high above the ground technical field, especially a kind of aerial work platform arm support end of travel that is applied to is prevented
The protection system of impact.
Background technology
The height of traditional boom type aerial working platform vehicle main boom lifting is the mechanical position limitation inside elevating ram
What stop location was determined, the whole lifting stroke of main boom is all normal quick lifting speed, when being lifted to end of travel,
The stretching of elevating ram, lifting oil are prevented by stopping the mechanical position limitation block inside elevating ram in the form of mechanical collision
Cylinder interior can be because the violent mechanical collision of the stop generation of positive stop and vibrations, be produced not to mechanical performance, oil cylinder life-span
Good influence.Operation comfort and security are influenceed simultaneously.
The content of the invention
When being lifted to end of travel due to main boom with normal speed, positive stop passes through mechanical collision inside elevating ram
Mode be blocked, the severe impact all produces sizable impact to the mechanical structure of elevating ram or even vehicle.This programme
When such as detection main boom is lifted to end of travel, electric signal can be transferred to control system, controlled by increasing proximity transducer
System processed will slow down main boom lifting speed automatically, effectively alleviate violent mechanical collision.
It is an object of the invention to provide a kind of protection system applied to aerial work platform arm support end of travel protecting against shock.
The technical scheme is that：A kind of protection system applied to aerial work platform arm support end of travel protecting against shock
System, including large arm lifting switch, proximity transducer, control module, hand-held analyzer and control valve, detection body 3 are welded on bearing pin
On axle sleeve, electric signal is passed to control module by the proximity transducer, the control module respectively with large arm lifting switch, control
Valve processed and the connection of hand-held analyzer.
Further, the control valve is elevating ram proportional control valve.
Further, the control module output pwm signal is to control valve.
Further, the detection body 3 uses iron block.
Further, the model of the proximity transducer is PARKER FP-3000.
Further, the model of the control module is PHOENIX PHT90218061.
Further, the model of the hand-held analyzer is JLG-2901443.
Further, the model of the control valve is HYDRAFORCE ZL72-30-0-N-12-DG.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) the effective mechanical collision for slowing down elevating ram internal mechanical positive stop in lifting process of the present invention, is improved
The service life of elevating ram.
(2) present invention is in non-end of travel region, and main boom still can be lifted according to normal speed, only close
During 5 ° of end of travel just can trigger sensor make main boom forced deceleration.It ensure that the high efficiency of lifting.
Brief description of the drawings
Fig. 1 is system schematic of the invention.
Fig. 2 is actual installation partial schematic diagram of the invention.
Fig. 3 is actual installation schematic diagram of the invention.
Fig. 4 is the schematic diagram of the end of travel scope of the present invention.
In figure：1- proximity transducers, 2- metal coating shells, 3- detection bodies, 4- direction switches.
Embodiment
In the description of the invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " on ", " under ",
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
The limitation of the present invention.In addition, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, the feature for defining " first ", " second " etc. can
To express or implicitly include one or more this feature.In the description of the invention, unless otherwise indicated, " multiple "
It is meant that two or more.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
The present invention is further illustrated with reference to the accompanying drawings and examples.
As illustrated, a kind of protection system applied to aerial work platform arm support end of travel protecting against shock, including large arm
Lifting switch, proximity transducer, control module, hand-held analyzer and control valve, detection body 3 are welded on shaft sleeve of pin shaft, are approached
Electric signal is passed to control module by sensor, and control module connects with large arm lifting switch, control valve and hand-held analyzer respectively
Connect.
Control valve is elevating ram proportional control valve.
Control module output pwm signal is to control valve.
Detection body 3 uses iron block.
The model of proximity transducer is PARKER FP-3000.
The model of control module is PHOENIX PHT90218061.
The model of hand-held analyzer is JLG-2901443.
The model of control valve is HYDRAFORCE ZL72-30-0-N-12-DG.
As illustrated, proximity transducer 1 is used for the sensor for detecting that main boom lifts end of travel, metal coating lid can
Proximity transducer is protected not smashed by the object of falling from high altitude, while the foreign matter interference letter for protecting proximity transducer not to be dropped
Number.Detection body 3 is the detection body of proximity transducer 1, is welded on shaft sleeve of pin shaft, is rotated as main boom is lifted, close
When main boom lifts end of travel, proximity transducer 1 detects detection body 3, and electric signal is transferred into control system.Close to sensing
Device 1, metal coating shell 2 and detection body 3 collectively constitute proximity transducer suit.Control module is used to provide input/output port.
When control module receives the input signal of proximity transducer 1, meeting output pwm signal is to control valve, so as to elevating ram
Lifting speed be controlled.
Operating procedure：
Step one：Main boom is quickly lifted in non-end of travel region, close to end of travel region.
Step 2：Into end of travel region, apart from 5 ° of the position in end, proximity transducer 1 detects detection body 3, will
Signal is transferred to control system.
Step 4：Control system controls elevating ram magnetic valve, it is switched to slow speed mode, main boom is with slow speed mode
Continue to be lifted to end of travel.
Step 5：In the range of 5 ° of stroke stub area, realize by quickly at a slow speed until stopping the process of lifting.
Whole process is apart from short, efficiency high, protecting against shock.
Principle：
Proximity transducer 1, which is arranged on, can detect that main boom lifts the position of stroke, regard iron block as detection body 3, weldering
It is connected on shaft sleeve of pin shaft, main boom lifting, shaft sleeve of pin shaft is with the detection concomitant rotation of body 3, last close to main boom lifting stroke
During end, proximity transducer 1 detects detection body 3, electric signal is transferred into control system, control system is by controlling elevating ram
Magnetic valve, the lifting speed that automatically switches makes the mechanical position limitation block inside elevating ram most to collide at a slow speed, kept away to slow speed mode
Violent mechanical collision is exempted from.
5 ° of regions of end of travel refer to：Principal arm lifts track, is a fan-shaped region, principal arm is with principal arm end and car
The bearing pin that body turntable top is connected is pivoted about, rotation to 70 ° when, into the present invention decelerating area, also
It is 5 ° of decelerating area.
Using the above-mentioned desirable embodiment according to the present invention as enlightenment, by above-mentioned description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property scope is not limited to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (8)
1. a kind of protection system applied to aerial work platform arm support end of travel protecting against shock, it is characterised in that including large arm
Lifting switch, proximity transducer, control module, hand-held analyzer and control valve, detection body (3) are welded on shaft sleeve of pin shaft, institute
State proximity transducer and electric signal passed into control module, the control module respectively with large arm lifting switch, control valve and hand
Hold analyzer connection.
2. a kind of protection system applied to aerial work platform arm support end of travel protecting against shock according to claim 1,
Characterized in that, the control valve is elevating ram proportional control valve.
3. a kind of protection system applied to aerial work platform arm support end of travel protecting against shock according to claim 1,
Characterized in that, the control module output pwm signal is to control valve.
4. a kind of protection system applied to aerial work platform arm support end of travel protecting against shock according to claim 1,
Characterized in that, the detection body (3) uses iron block.
5. a kind of protection system applied to aerial work platform arm support end of travel protecting against shock according to claim 1,
Characterized in that, the model of the proximity transducer is PARKER FP-3000.
6. a kind of protection system applied to aerial work platform arm support end of travel protecting against shock according to claim 1,
Characterized in that, the model of the control module is PHOENIX PHT90218061.
7. a kind of protection system applied to aerial work platform arm support end of travel protecting against shock according to claim 1,
Characterized in that, the model of the hand-held analyzer is JLG-2901443.
8. a kind of protection system applied to aerial work platform arm support end of travel protecting against shock according to claim 1,
Characterized in that, the model of the control valve is HYDRAFORCE ZL72-30-0-N-12-DG.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499666.XA CN107089627A (en) | 2017-06-26 | 2017-06-26 | A kind of protection system applied to aerial work platform arm support end of travel protecting against shock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710499666.XA CN107089627A (en) | 2017-06-26 | 2017-06-26 | A kind of protection system applied to aerial work platform arm support end of travel protecting against shock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107089627A true CN107089627A (en) | 2017-08-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710499666.XA Pending CN107089627A (en) | 2017-06-26 | 2017-06-26 | A kind of protection system applied to aerial work platform arm support end of travel protecting against shock |
Country Status (1)
| Country | Link |
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| CN (1) | CN107089627A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046181A (en) * | 2017-12-19 | 2018-05-18 | 长沙中联消防机械有限公司 | What arm support collided stress protect system, method and hold vehicle high |
| CN108178112A (en) * | 2017-12-19 | 2018-06-19 | 长沙中联消防机械有限公司 | The detection of arm support collision protects system, method and holds vehicle high |
-
2017
- 2017-06-26 CN CN201710499666.XA patent/CN107089627A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108046181A (en) * | 2017-12-19 | 2018-05-18 | 长沙中联消防机械有限公司 | What arm support collided stress protect system, method and hold vehicle high |
| CN108178112A (en) * | 2017-12-19 | 2018-06-19 | 长沙中联消防机械有限公司 | The detection of arm support collision protects system, method and holds vehicle high |
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