CN102661712A - Forklift brake distance detection method and device - Google Patents
Forklift brake distance detection method and device Download PDFInfo
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- CN102661712A CN102661712A CN2012101655571A CN201210165557A CN102661712A CN 102661712 A CN102661712 A CN 102661712A CN 2012101655571 A CN2012101655571 A CN 2012101655571A CN 201210165557 A CN201210165557 A CN 201210165557A CN 102661712 A CN102661712 A CN 102661712A
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Abstract
The invention discloses a forklift brake distance detection method and device. The technical scheme is that the function of S varying with time, S=S(t), is obtained by adopting the laser ranger finder by virtue of the distance S value from a measurement plate to a measurement basis of a laser range finder in the process that a forklift moves in uniform motion at the maximal speed, then brakes in uniform deceleration until the forklift stops by utilizing a brake distance automatic calculation module according to the real-time collection; then automatic derivation of S(t) is carried out, thus the function of speed and time V=V(t) in the process that the forklift runs to the brake stopping at the maximal speed in uniform motion is obtained; and according to a speed function curve, the running speed V and braking time t in the braking process of the forklift in uniform motion can be obtained, wherein the brake distance automatic calculation module can obtain the braking distance S in braking according to a uniform deceleration motion distance formula. The brake distance automatic calculation module is connected with a printer, and data information and function curve patterns in the whole process can be printed in real time as required.
Description
Technical field
The present invention is a kind of fork truck braking distance detection method and device.
Background technology
Fork truck is factory's Transport Machinery commonly used.Its braking distance relates to an important indicator of fork truck security performance.In to the fork truck safety check, must measure fork truck fork truck under unloaded and nominal load situation and at the uniform velocity drive to braking distance in the brake stopped process with maximal rate.In actual production, need the braking distance of fork truck often be detected, to guarantee safety in production.According to national standard,, then need keep in repair the fork truck brake system if braking distance exceeds the scope that standard allows.Quick and precisely measuring the fork truck braking distance is the important means that improves checkability and improve accuracy of detection, does not still have the quite good detecting method and apparatus at present.
Summary of the invention
The present invention is directed to the deficiency of prior art, provide a kind of electronic component use less, simple in structure, easy to operate, price is low, install and use the easy fork truck braking distance detection method and the technical scheme of device.
The present invention realizes through following technical measures: will measure earlier plate be fixed on the fork truck afterbody utilize laser range finder with measure plate cooperates gather in real time under the unloaded and two kinds of different conditions of nominal load of fork truck from the maximal rate uniform motion, spare retarding braking to the braking procedure that stops; Measure the numerical value and the real-time Transmission apart from S of plate and laser range finder benchmark and give the automatic computing module of braking distance; The automatic computing module of said braking distance can according to the fork truck that laser range finder is gathered in real time from the braking stopped process that travels at the uniform speed with maximal rate, measure plate to the laser range finder measuring basis apart from S numerical value, obtain S and change function S=S (t) in time; To S (t) differentiate automatically, obtain speed and the function V=V of time (t) in the fork truck operational process then; And the braking time t of the travelling speed V of fork truck and braking procedure in the time of obtaining uniform motion according to the velocity function curve, the automatic computing module of said braking distance can be automatically according to the uniformly retarded motion range formula
, obtain braking distance S
Braking
The further improvement of this detection method also has; The automatic computing module of braking distance is reported module with display module and/or printing and is connected; Said display module can show the function curve of S=S (t) and the function curve of V=V (t) in real time, and module is reported in said printing can be with function curve and the function curve printing of V=V (t) and the braking distance S that will obtain automatically of S=S (t)
BrakingNumerical value print or automatic language is reported.
The invention also discloses a kind of pick-up unit; Comprise the measurement plate that is fixed on the fork truck afterbody, with measure the laser range finder that the plate level height adapts, the automatic computing module of braking distance that is connected with laser range finder; The automatic computing module of said braking distance can according to the fork truck that laser range finder is gathered in real time unloaded with two kinds of different conditions of nominal load under from measurement plate maximal rate uniform motion, even retarding braking to the braking procedure that stops to the laser range finder measuring basis apart from S numerical value, obtain S and change function S=S (t) in time; To S (t) differentiate automatically, obtain speed and the function V=V of time (t) in the fork truck operational process then; And the braking time t of the travelling speed V of fork truck and braking procedure in the time of obtaining uniform motion according to the velocity function curve, the automatic computing module of said braking distance can be automatically according to the uniformly retarded motion range formula
, obtain braking distance S
Braking
The further improvement of this pick-up unit also has, the automatic computing module of above-mentioned braking distance also have display module connect with/print the report module to be connected.
The further improvement of this pick-up unit also has, and the automatic computing module of above-mentioned braking distance also has display module to connect, and said display module is also reported module with printing and is connected.
Beneficial effect of the present invention is: according to the physical phenomenon calculated braking distance that exists in the fork truck motion process; Its electronic component uses less, circuit structure is simple, simple to operate; Accuracy of detection is high, reduced the fork truck potential safety hazard more accurately, and its fault is few; Simple to operate, long service life.
Description of drawings
Fig. 1, Fig. 2 are respectively the detection architecture synoptic diagram under specific embodiment of the invention zero load and the nominal load two states.
S=S (t) function curve that the real-time image data of laser range finder obtains among Fig. 3 the present invention.
V=V (t) function curve that Fig. 4 obtains for function curve differentiate among Fig. 3.
Embodiment
For clearly demonstrating the technical characterstic of this programme, through an embodiment, this programme is set forth below.
To measure earlier plate be fixed on the fork truck afterbody utilize laser range finder with measure plate cooperates gather in real time fork truck from the maximal rate uniform motion, spare retarding braking to the braking procedure that stops; Measure the numerical value and the real-time Transmission apart from S of plate and laser range finder benchmark and give the automatic computing module of braking distance; The automatic computing module of said braking distance can according to the fork truck that laser range finder is gathered in real time unloaded with two kinds of different conditions of nominal load under in the operational process measurement plate to the laser range finder measuring basis apart from S numerical value, obtain S and change function S=S (t) in time; To S (t) differentiate automatically, obtain speed and the function V=V of time (t) in the fork truck operational process then; And the braking time t of the travelling speed V of fork truck and braking procedure in the time of obtaining uniform motion according to the velocity function curve, the automatic computing module of said braking distance can be automatically according to the uniformly retarded motion range formula
, obtain braking distance S
Braking
Embodied the different S=S (t) of two kinds of braking effects, the function curve diagram of V=V (t) among Fig. 3 Fig. 4 respectively, from Fig. 4, can obviously find out braking effect, the braking distance of solid line is short, good braking effect.
The further improvement of this detection method also has; The automatic computing module of braking distance is reported module with display module and/or printing and is connected; Said display module can show the function curve of S=S (t) and the function curve of V=V (t) in real time, and module is reported in said printing can be with function curve and the function curve printing of V=V (t) and the braking distance S that will obtain automatically of S=S (t)
BrakingNumerical value print or automatic language is reported.According to print result or report numerical value, more directly obtain testing result.
The invention also discloses a kind of pick-up unit; Comprise the measurement plate that is fixed on the fork truck afterbody, with measure the laser range finder that the plate level height adapts, the automatic computing module of braking distance that is connected with laser range finder; The automatic computing module of said braking distance can according to the fork truck that laser range finder is gathered in real time unloaded with two kinds of different conditions of nominal load under from measurement plate maximal rate uniform motion, even retarding braking to the braking procedure that stops to the laser range finder measuring basis apart from S numerical value, obtain S and change function S=S (t) in time; To S (t) differentiate automatically, obtain speed and the function V=V of time (t) in the fork truck operational process then; And the braking time t of the travelling speed V of fork truck and braking procedure in the time of obtaining uniform motion according to the velocity function curve, the automatic computing module of said braking distance can be automatically according to the uniformly retarded motion range formula
, obtain braking distance S
BrakingThe automatic computing module of braking distance also have display module connect with/print the report module to be connected.Perhaps the automatic computing module of braking distance also has display module to connect, and said display module is also reported module with printing and is connected.
The present invention can pass through or adopt existing techniques in realizing without the technical characterictic of describing; Repeat no more at this; Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited in above-mentioned giving an example; Variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present invention also should belong to protection scope of the present invention.
Claims (5)
1. fork truck braking distance detection method; It is characterized in that; To measure earlier plate be fixed on the fork truck afterbody utilize laser range finder with measure plate cooperates gather in real time under the unloaded and two kinds of different conditions of nominal load of fork truck from the maximal rate uniform motion, spare retarding braking to the braking procedure that stops; Measure the numerical value and the real-time Transmission apart from S of plate and laser range finder benchmark and give the automatic computing module of braking distance; The automatic computing module of said braking distance can according to the fork truck that laser range finder is gathered in real time from the braking stopped process that travels at the uniform speed with maximal rate, measure plate to the laser range finder measuring basis apart from S numerical value, obtain S and change function S=S (t) in time; To S (t) differentiate automatically, obtain speed and the function V=V of time (t) in the fork truck operational process then; And the braking time t of the travelling speed V of fork truck and braking procedure in the time of obtaining uniform motion according to the velocity function curve, the automatic computing module of said braking distance can be automatically according to the uniformly retarded motion range formula
, obtain braking distance S
Braking
2. fork truck braking distance detection method according to claim 1; It is characterized in that; The automatic computing module of said braking distance is reported module with display module and/or printing and is connected; Said display module can show the function curve of S=S (t) and the function curve of V=V (t) in real time, and module is reported in said printing can be with function curve and the function curve printing of V=V (t) and the braking distance S that will obtain automatically of S=S (t)
BrakingNumerical value print or automatic language is reported.
3. pick-up unit of realizing the described method of claim 1; It is characterized in that; Comprise the measurement plate that is fixed on the fork truck afterbody, with measure the laser range finder that the plate level height adapts, the automatic computing module of braking distance that is connected with laser range finder; The automatic computing module of said braking distance can according to the fork truck that laser range finder is gathered in real time unloaded with two kinds of different conditions of nominal load under from measurement plate maximal rate uniform motion, even retarding braking to the braking procedure that stops to the laser range finder measuring basis apart from S numerical value, obtain S and change function S=S (t) in time; To S (t) differentiate automatically, obtain speed and the function V=V of time (t) in the fork truck operational process then; And the braking time t of the travelling speed V of fork truck and braking procedure in the time of obtaining uniform motion according to the velocity function curve, the automatic computing module of said braking distance can be automatically according to the uniformly retarded motion range formula
, obtain braking distance S
Braking
4. pick-up unit according to claim 3 is characterized in that, the automatic computing module of said braking distance also have display module connect with/print the report module to be connected.
5. pick-up unit according to claim 3 is characterized in that, the automatic computing module of said braking distance also has display module to connect, and said display module is also reported module with printing and is connected.
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CN2012101655571A CN102661712A (en) | 2012-05-25 | 2012-05-25 | Forklift brake distance detection method and device |
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CN2012101655571A CN102661712A (en) | 2012-05-25 | 2012-05-25 | Forklift brake distance detection method and device |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102914437A (en) * | 2012-10-29 | 2013-02-06 | 浙江大学 | Vehicle road test brake performance detection system based on laser ranging |
CN103293007B (en) * | 2013-06-09 | 2016-01-20 | 湖州金博电子技术有限公司 | A kind of agricultural vehicle performance detection method and detecting instrument thereof |
CN109163840A (en) * | 2018-09-11 | 2019-01-08 | 安徽梯易优叉车有限公司 | A kind of fork truck braking distance measuring tool |
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US4257703A (en) * | 1979-03-15 | 1981-03-24 | The Bendix Corporation | Collision avoidance using optical pattern growth rate |
CN201803668U (en) * | 2010-10-09 | 2011-04-20 | 大连光程光电科技有限公司 | Brake glide quantity detector of crane |
CN102060235A (en) * | 2010-12-09 | 2011-05-18 | 江苏省特种设备安全监督检验研究院 | Braking glide quality tester for crane |
CN102285591A (en) * | 2011-07-13 | 2011-12-21 | 祝凤金 | Braking glide quantity detector for crane |
-
2012
- 2012-05-25 CN CN2012101655571A patent/CN102661712A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US4257703A (en) * | 1979-03-15 | 1981-03-24 | The Bendix Corporation | Collision avoidance using optical pattern growth rate |
CN201803668U (en) * | 2010-10-09 | 2011-04-20 | 大连光程光电科技有限公司 | Brake glide quantity detector of crane |
CN102060235A (en) * | 2010-12-09 | 2011-05-18 | 江苏省特种设备安全监督检验研究院 | Braking glide quality tester for crane |
CN102285591A (en) * | 2011-07-13 | 2011-12-21 | 祝凤金 | Braking glide quantity detector for crane |
Non-Patent Citations (2)
Title |
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王润琪等: "汽车起重机制动距离功能原理计算法", 《起重运输机械》 * |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102914437A (en) * | 2012-10-29 | 2013-02-06 | 浙江大学 | Vehicle road test brake performance detection system based on laser ranging |
CN103293007B (en) * | 2013-06-09 | 2016-01-20 | 湖州金博电子技术有限公司 | A kind of agricultural vehicle performance detection method and detecting instrument thereof |
CN109163840A (en) * | 2018-09-11 | 2019-01-08 | 安徽梯易优叉车有限公司 | A kind of fork truck braking distance measuring tool |
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Application publication date: 20120912 |