CN107445125A - A kind of detection means and detection method - Google Patents
A kind of detection means and detection method Download PDFInfo
- Publication number
- CN107445125A CN107445125A CN201710652200.9A CN201710652200A CN107445125A CN 107445125 A CN107445125 A CN 107445125A CN 201710652200 A CN201710652200 A CN 201710652200A CN 107445125 A CN107445125 A CN 107445125A
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- 238000001514 detection method Methods 0.000 title claims abstract description 38
- 241001310793 Podium Species 0.000 claims abstract description 29
- 230000009471 action Effects 0.000 claims abstract description 13
- 230000007423 decrease Effects 0.000 claims description 7
- 230000007717 exclusion Effects 0.000 abstract description 3
- 230000004888 barrier function Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- 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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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a kind of detection means; including controller, podium level sensor, lower stroke switch; wherein; lower protection travel switch includes normally opened contact and normally-closed contact; normally-closed contact is in parallel with normally opened contact and is separately positioned in first line and the second circuit; controller with first line and the second connection, and is connected with podium level sensor simultaneously.When controller obtains the state of first line and the second circuit with demarcation state difference, stop platform action.Controller judges whether lower stroke switch logic is correct by logic mutual exclusion, so as to improve security.The invention also discloses a kind of detection method.
Description
Technical field
The present invention relates to the pit-hole protection mechanism detection technique field of aerial work platform, more particularly to a kind of detection means
And detection method.
Background technology
, be in two forks when scissor declines after platform raises for the scissor aerial work platform from walking
Sub- vertical range is more than the position of 50mm height, and scissor needs to stop declining, it is necessary to which the delay for again declining and having 3 seconds is just held
The secondary down maneuver of row, this is to prompt scissor to would fall to position, prevents scissor from clipping to the arm, finger and other things of people
Product, so need to do such a pause defencive function, due to this function in scissor routine work it is extremely important, and need
Want control system to be monitored in real time, judge whether scissor declines in place, the safety of protection staff and equipment tool.
Existing secondary decline protection scheme is that control system receives after travel switch is held down in place under scissor detection
Under travel switch in place input signal, control system limitation down maneuver, after only come loose again handle or toggle switch, control
System processed just performs down maneuver (delay 3 seconds) again.But according to EN208 standards, prior art is can not to meet to want
Ask, because when travel switch is held down in place instantly, control system is not detect and judge, so instantly in place
When travel switch is blocked and broken down, prior art can not protection equipment and personal security.
Therefore, how a kind of detection means is provided, is that current those skilled in the art are urgently to be resolved hurrily to improve security
Technical problem.
The content of the invention
In view of this, it is an object of the invention to provide a kind of detection means, to improve security.Another mesh of the present invention
Be a kind of detection method based on above-mentioned detection device is provided.
In order to achieve the above object, the present invention provides following technical scheme：
A kind of detection means, including controller, podium level sensor, lower stroke switch, wherein, the lower protection stroke
Switch includes normally opened contact and normally-closed contact, and the normally-closed contact is in parallel with the normally opened contact and is separately positioned on first line
On the second circuit, the controller simultaneously with the first line and second connection, and with the podium level
Sensor connects.
Preferably, above-mentioned aerial work platform is scissor-type, and the podium level sensor is angular transducer.
The present invention also provides a kind of detection method, based on detection means described above, wherein, the aerial work platform
Real-time height be h0, the height of the secondary decline pause of the aerial work platform is h1, when the normally opened contact is from normally opened
State be held down when being changed into closure, the height of the aerial work platform is h2, when the normally-closed contact is from normally closed state
It is held down when being changed into normally opened, the height of the aerial work platform is h3, h1 ＞ h2 ＞ h3, utilizes the podium level sensor
With it is described under in place travel switch detect parameter value in advance：H1, h2 and h3 are simultaneously stored in the controller, then real-time judge：
When the podium level sensor detects h0 ＜ h3, the normally-closed contact is held down from normally closed state is changed into normally opened, institute
State normally opened contact and be held down from normally opened state and be changed into normally closed, the first line is in off-state, and second circuit is in close
Conjunction state, now, when the controller obtains the state of the first line and second circuit with above-mentioned state difference, stop
Only platform acts；When the podium level sensor detects h2 ＜ h0, the normally-closed contact is normally off, described normally opened
Contact is normally open, and the first line is in closure state, and second circuit is in off-state, now, the controller
When obtaining the state of the first line and second circuit with above-mentioned state difference, stop platform action.
Preferably, also alarmed while the stopping platform action.
Preferably, above-mentioned detection method also includes：When the podium level sensor detects h3 ＜ h0 ＜ h2, institute
Controller is stated not detect.
Preferably, also alarmed while the stopping platform rise action.
Detection means provided by the invention, for detecting the secondary decline stall position of aerial work platform, including control
Device, podium level sensor, lower stroke switch, wherein, lower protection travel switch includes normally opened contact and normally-closed contact, normally closed to touch
Point is in parallel with normally opened contact and be separately positioned in first line and the second circuit, controller and meanwhile with first line and the second line
Road connects, and is connected with podium level sensor.In use, with the real-time height of aerial work platform for h0, work high above the ground is put down
The height that the secondary decline of platform pauses is h1, and when normally opened contact is held down from normally opened state is changed into closure, work high above the ground is put down
The height of platform is h2, and when normally-closed contact is held down from normally closed state is changed into normally opened, the height of aerial work platform is h3, h1
＞ h2 ＞ h3, using the podium level sensor and it is described under in place travel switch detect parameter value in advance：H1, h2 and h3
And the controller is stored in, then real-time judge：When podium level sensor detects h0 ＜ h3, normally-closed contact is from normally closed
State, which is held down, is changed into normally opened, and normally opened contact is held down from normally opened state is changed into normally closed, and first line is in off-state, and second
Circuit is in closure state, now, when controller obtains the state of first line and the second circuit with above-mentioned state difference, is stopped flat
Platform acts；When podium level sensor detects h2 ＜ h0, normally-closed contact is normally off, and normally opened contact is normally open,
First line is in closure state, and the second circuit is in off-state, and now, controller obtains first line and the state of the second circuit
During with above-mentioned state difference, stop platform action.So as to improve security.
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, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the structural representation of first line provided in an embodiment of the present invention and the second circuit.
In figure 1 above：
First line 1, the second circuit 2, normally-closed contact 3, normally opened contact 4.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is the structural representation of first line provided in an embodiment of the present invention and the second circuit.
Detection means provided in an embodiment of the present invention, including controller, podium level sensor, lower stroke switch, wherein,
Lower protection travel switch includes normally opened contact 4 and normally-closed contact 3, and normally-closed contact 3 is in parallel with normally opened contact 4, and normally-closed contact 3 is set
In first line 1, normally opened contact 4 is arranged on the second circuit 2, and controller is connected with the circuit 2 of first line 1 and second simultaneously,
And it is connected with podium level sensor.In use, with the real-time height of aerial work platform for h0, aerial work platform it is secondary
It is h1 to decline the height paused, when normally opened contact 4 is held down from normally opened state is changed into closure, the height of aerial work platform
For h2, when normally-closed contact 3 is held down from normally closed state is changed into normally opened, the height of aerial work platform is h3, h1 ＞ h2 ＞
H3, when podium level sensor detects h0 ＜ h3, normally-closed contact 3 is held down from normally closed state is changed into normally opened, normally opened to touch
Point 4 is held down from normally opened state is changed into normally closed, and first line 1 is in off-state, and the second circuit 2 is in closure state, now, control
When device processed obtains the state of the circuit 2 of first line 1 and second with above-mentioned state difference, stop platform action；When podium level passes
When sensor detects h2 ＜ h0, normally-closed contact 3 is normally off, and normally opened contact 4 is normally open, and first line 1 is in closed form
State, the second circuit 2 are in off-state, and now, controller obtains the state of the circuit 2 of first line 1 and second with above-mentioned state not
Meanwhile stop platform action.So as to improve security.
Also alarmed while platform action is stopped.Further improve security.
Wherein, aerial work platform is scissor-type, and podium level sensor is angular transducer.Pass through angular transducer mark
Determine the height of the height of scissor, i.e. platform.
The embodiment of the present invention also provides a kind of detection method, based on above-mentioned detection means, wherein, aerial work platform
Height is h0 in real time, and the height that the secondary decline of aerial work platform pauses is h1, when normally opened contact 4 is pressed from normally opened state
When being firmly changed into closure, the height of aerial work platform is h2, when normally-closed contact 3 is held down from normally closed state is changed into normally opened,
The height of aerial work platform is h3, h1 ＞ h2 ＞ h3, and using podium level sensor, travel switch detects in advance in place with
Go out parameter value：H1, h2 and h3 are simultaneously stored in controller, then real-time judge：When podium level sensor detects h0 ＜ h3, often
Closed contact 3 is held down from normally closed state is changed into normally opened, and normally opened contact 4 is held down from normally opened state is changed into normally closed, First Line
Road 1 is in off-state, and the second circuit 2 is in closure state, now, controller obtain the state of the circuit 2 of first line 1 and second with
During above-mentioned state difference, stop platform action；When podium level sensor detects h2 ＜ h0, normally-closed contact 3 is normally closed shape
State, normally opened contact 4 are normally open, and first line 1 is in closure state, and the second circuit 2 is in off-state, and now, controller obtains
To the circuit 2 of first line 1 and second state and above-mentioned state difference when, stop platform action.
Wherein, also alarmed while platform action is stopped.
Wherein, above-mentioned detection method also includes：When podium level sensor detects h3 ＜ h0 ＜ h2, controller is not
Detect.
Detection method and detection means provided in an embodiment of the present invention have increased angular transducer newly, and angular transducer can be with
The height of detection scissor in real time, can be down stroke by the secondary height h1, h2 that pause of declining of angle sensor calibration scissor
The height that the normally opened contact of switch is held down, h2<h1.Under normal circumstances when scissor declines, scissor first detects h1 height
Paused after degree, when a failure occurs, scissor can travel switch be detected in place under, has so done duplicate protection, really
Protect when scissor declines and secondary pause occurs.
The mutual checking functions of travel switch in place under detection method and detection means provided by the invention have increased newly, under go in place
Cheng Kaiguan normally opened contact 4 and normally-closed contact 3 is coupled with controller, and can demarcate down stroke in place by angular transducer opens
Close the height (height of normally opened contact 4 and the switching state of normally-closed contact 3) of two groups of contact transition statuses, normally opened contact 4 is from normally opened
State to be held down be changed into closure when scissor height be h2, normally-closed contact 3 is changed into normally opened from normally off to being held down
State is h3, h3<H2, controller judge whether travel switch logic is correct by logic mutual exclusion, so that it is guaranteed that secondary pause work(
It will not can fail.
As scissor height h0<When h3 positions, the logic state of travel switch in place under controller detection, it may be that the
One circuit 1 is in low level in off-state, and the second circuit 2 is in the numerical signal 1 that closure state is in high level, i.e. first line 1
For low level (0V), the numerical signal 2 of the second circuit 2 is high level (24V), if logic control is not to prompting lower location switch event
Barrier alarm, the output signal of bolt down procedure control.
Work as h3<h0<When h2, due to the characteristic of travel switch, the normally-closed contact 3 and normally opened contact 4 of lower stroke switch
There is coincidence, so not doing mutual exclusion detection in the range of this.
As scissor height h0>When h2 positions, the logic state of travel switch in place under controller detection, it may be that the
One circuit 1 is in high level in closure state, and the second circuit 2 is in the numerical signal 1 that off-state is in low level, i.e. first line 1
For high level (24V), the numerical signal 2 of the second circuit 2 is low level (0V), if logic control is not to prompting lower location switch event
Barrier alarm, the output signal of bolt down procedure control.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (6)
- A kind of 1. detection means, it is characterised in that including controller, podium level sensor, lower stroke switch,Wherein, the lower protection travel switch includes normally opened contact and normally-closed contact,The normally-closed contact is in parallel with the normally opened contact and is separately positioned in first line and the second circuit,The controller simultaneously with the first line and second connection, and with the podium level sensor connect Connect.
- 2. detection means according to claim 1, it is characterised in that the aerial work platform is scissor-type, described flat Platform height sensor is angular transducer.
- A kind of 3. detection method, it is characterised in that based on the detection means described in the claims 1, wherein,The real-time height of the aerial work platform is h0,The height that the secondary decline of the aerial work platform pauses is h1,When the normally opened contact is held down from normally opened state is changed into closure, the height of the aerial work platform is h2,When the normally-closed contact is held down from normally closed state is changed into normally opened, the height of the aerial work platform is h3,H1 ＞ h2 ＞ h3,Using the podium level sensor and it is described under in place travel switch detect parameter value in advance：H1, h2 and h3 are simultaneously deposited Enter the controller, then real-time judge：When the podium level sensor detects h0 ＜ h3,The normally-closed contact is held down from normally closed state is changed into normally opened, and the normally opened contact is held down from normally opened state to be changed into Normally closed, the first line is in off-state, and second circuit is in closure state,Now, when the controller obtains the state of the first line and second circuit with above-mentioned state difference, stop Platform acts；When the podium level sensor detects h2 ＜ h0,The normally-closed contact is normally off, and the normally opened contact is normally open, and the first line is in closure state, described Second circuit is in off-state,Now, when the controller obtains the state of the first line and second circuit with above-mentioned state difference, stop Platform acts.
- 4. detection method according to claim 3, it is characterised in that also reported while the stopping platform action It is alert.
- 5. detection method according to claim 3, it is characterised in that also include：When the podium level sensor detects h3 ＜ h0 ＜ h2, the controller does not detect.
- 6. detection method according to claim 5, it is characterised in that also enter while the stopping platform rise action Row alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710652200.9A CN107445125B (en) | 2017-08-02 | 2017-08-02 | A kind of detection device and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710652200.9A CN107445125B (en) | 2017-08-02 | 2017-08-02 | A kind of detection device and detection method |
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| CN107445125A true CN107445125A (en) | 2017-12-08 |
| CN107445125B CN107445125B (en) | 2019-07-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111413903A (en) * | 2020-04-01 | 2020-07-14 | 镇江颀珑工程技术服务有限公司 | Nonlinear time-delay remote monitoring system for industrial production |
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| JP2001089086A (en) * | 1999-09-24 | 2001-04-03 | Sugiyasu Kogyo Kk | Hydraulic synchronizing device of lift for car maintenance |
| EP1721774A1 (en) * | 2005-05-13 | 2006-11-15 | Kabushiki Kaisha Toyota Jidoshokki | Industrial vehicle |
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| CN107445125B (en) | 2019-07-16 |
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Address after: 410000, No. 128, Jinzhou East Road, Ningxiang hi tech Development Zone, Hunan, Changsha Patentee after: Hunan Xingbang Intelligent Equipment Co.,Ltd. Address before: 410000, No. 128, Jinzhou East Road, Ningxiang hi tech Development Zone, Hunan, Changsha Patentee before: HUNAN SINOBOOM HEAVY INDUSTRY Co.,Ltd. |
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Denomination of invention: A detection device and detection method Effective date of registration: 20220112 Granted publication date: 20190716 Pledgee: Agricultural Bank of China Limited Ningxiang sub branch Pledgor: Hunan Xingbang Intelligent Equipment Co.,Ltd. Registration number: Y2022430000002 |
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Date of cancellation: 20231110 Granted publication date: 20190716 Pledgee: Agricultural Bank of China Limited Ningxiang sub branch Pledgor: Hunan Xingbang Intelligent Equipment Co.,Ltd. Registration number: Y2022430000002 |