CN204111267U - A kind of job platform automatic leveling device of mixing arm aerial platform - Google Patents
A kind of job platform automatic leveling device of mixing arm aerial platform Download PDFInfo
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- CN204111267U CN204111267U CN201420599109.7U CN201420599109U CN204111267U CN 204111267 U CN204111267 U CN 204111267U CN 201420599109 U CN201420599109 U CN 201420599109U CN 204111267 U CN204111267 U CN 204111267U
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Abstract
The utility model relates to a kind of job platform automatic leveling device of mixing arm aerial platform, comprise levelling gear, leveling hydraulic system and electric control system, it is characterized in that: described levelling gear comprises the folding arm that upper end is connected with telescopic boom, upper end is by the hinged leveling support of the first adapter shaft and folding arm bottom, the high-altitude operation platform be connected with leveling pedestal lower end portion, the hinged leveling cyclinder in the upper end of the 3rd adapter shaft and folding arm is passed through by the hinged other end of the second adapter shaft and leveling pedestal upper end portion in one end, also comprise one end and be connected the other end and the hinged telescopic boom of basic arm with the upper end of folding arm.The utility model can keep higher reliability, leveling and repeat leveling precision and leveling speed of response under the environmental conditions of-40 DEG C ~ 50 DEG C; There is good comformability, ensure the sense of security of high-altitude operation platform operator, and can operating efficiency be improved, thus the vehicle performance of altitude operation vehicle is obviously promoted.
Description
Technical field
The utility model belongs to aloft work facility, is specifically related to a kind of job platform automatic leveling device of mixing arm aerial platform.
Background technology
Along with the healthy and rapid development of national economy, many fields, for increasing work efficiency, are equipped with aerial lift device, and wherein mixing arm aerial platform demand is the most obvious.Mixing arm aerial platform widely uses in fields such as street lamp, gardens, decorations, oil, building, electric power, shipbuilding, bridge constructions.Along with the range of use of mixing arm aerial platform is increasing, frequency of utilization and temperature environment comformability require also more and more higher, user pays close attention to further to the in-use performance of the type aerial platform in the larger area of difference variation, especially the manned workplatform levelling function at low temperatures of the type vehicle is paid close attention to the most, its leveling precision, the work efficiency repeating leveling precision and the leveling speed of response person that directly affects high-altitude application and use safety sense.CN 203486808 U disclosed " a kind of automatic horizontal control system, Operation Van mixing jib aerial platform ", comprising: one-level levelling gear, secondary levelling gear, fluid power system and controller; Secondary levelling gear comprises: fly jib derricking cylinder, the second fork, second connecting rod and fly jib; One-level levelling gear comprises: bench board leveling cylinder, the first fork, first connecting rod, link span, oscillating cylinder and bracket; Fluid power system comprises: one-level fluid power system and 2-level hydraulic drive system.This leveling system, Operation Van, solve leveling cyclinder in the arm-type aloft work of mixing of two-stage stretching band fly jib and export the restricted problem of pendulum angle, realize the levelling function of working arm variable phase angle at the large space operated within range platform of 260 °, and improve fast-response and the control accuracy of leveling system by electric-liquid type leveling mode.But do not relate to the reliability, the leveling that how to keep higher at low ambient conditions and repeat the problem of leveling precision and leveling speed of response.
Summary of the invention
The purpose of this utility model is to provide a kind of job platform automatic leveling device of mixing arm aerial platform, and it can keep higher reliability, leveling and repeat leveling precision and leveling speed of response under the environmental conditions of-40 DEG C ~ 50 DEG C; There is good comformability, ensure the sense of security of high-altitude operation platform operator, and can operating efficiency be improved, thus the vehicle performance of altitude operation vehicle is obviously promoted.
The job platform automatic leveling device of a kind of mixing arm aerial platform described in the utility model, comprise levelling gear, leveling hydraulic system and electric control system, it is characterized in that: described levelling gear comprises the folding arm that upper end is connected with telescopic boom, upper end is by the hinged leveling support of the first adapter shaft and folding arm bottom, the high-altitude operation platform be connected with leveling pedestal lower end portion, the hinged leveling cyclinder in the upper end of the 3rd adapter shaft and folding arm is passed through by the hinged other end of the second adapter shaft and leveling pedestal upper end portion in one end, also comprise one end and be connected the telescopic boom that the other end is connected with basic arm with the upper end of folding arm,
Described leveling hydraulic system comprises the oil pump be located on mixing arm aerial platform, the leveling electro-hydraulic proportional valve be located on fuel tank, the Bidirectional balanced valve be located on described leveling cyclinder, one end are communicated with the leveling hydraulic tubing that the other end is communicated with described apportioning valve with leveling cyclinder;
Described electric control system comprises and is located at angular transducer on described leveling support and leveling control module, and the specifications and models of leveling control module are CLIO-AB.Described angular transducer is electrically connected with leveling control module, and described leveling electro-hydraulic proportional valve and Bidirectional balanced valve are electrically connected with this leveling control module respectively.
The job platform automatic leveling device of described a kind of mixing arm aerial platform, fills low solidifying antiwear hydraulic oil in the fuel tank of leveling hydraulic system described in it.Its effect has good flowing power under the environment that difference variation is large, and the job platform automatic leveling device of mixing arm aerial platform is normally worked in range of temperature.
The job platform automatic leveling device of described a kind of mixing arm aerial platform, is provided with heat insulation layer outside the leveling hydraulic tubing of described leveling hydraulic system.
The hydraulic power source of the lift operation control system of aerial platform is provided by other engine installations, stops to produce disturbing factor to leveling hydraulic system.The actual delivery rate of leveling hydraulic system is greater than 8L/min, and system nominal pressure is 16 ~ 20MPa.
Leveling electro-hydraulic proportional valve adopts the high frequency apportioning valve of current-control type, the frequency of operation of its proportion electro-magnet is at 200 ~ 400Hz, there is overflow and M/C control integration in the function of one, when special emergent adopt M/C control by high-altitude operation platform leveling, make workplatform remove receipts safely, operator and aerial lift device, instrument are put down safely.
The Hydraulic Elements with low-temperature working performance are all adopted in leveling hydraulic system; Bidirectional balanced valve, under the pressure of 27Mpa, in 5 minutes, is not more than 0.05ml/min according to discharge in standard testing; The interior discharge of leveling cyclinder controls at below 0.05ml/min; Reduce high-altitude operation platform in position, high-altitude static and carry out operation time let out excessive because of interior and occur unexpected leveling action because of Bidirectional balanced valve and leveling cyclinder, the sense of security of person when operation is improved to make high-altitude application.
Hydraulic work system medium adopts low solidifying antiwear hydraulic oil, as Co., Ltd of Sinopec---L-HS32, has good flowing power, leveling system is normally worked in range of temperature under the environment that difference variation is large.
The latus rectum of leveling hydraulic tubing is not more than φ 6mm, and the pipeline with relative motion adopts flexible pipe, at low ambient temperatures can normal transmission pressure oil; All the other pipelines can adopt hard steel pipe, and reply pipeline carries out insulation process, can effectively shorten the leveling delay time produced because of pipeline elastic shrinkage.
The angular transducer of electric control system can detect the change of the inclination angle of high-altitude operation platform in ± 5 °, once detect that detection signal is just transferred to leveling control module by signal, just the signal after computing is amplified after sequential operation, finally input with the proportion electro-magnet of current signal to leveling electro-hydraulic proportional valve, promote the valve core movement of leveling electro-hydraulic proportional valve, valve core opening degree is increased gradually, to the leveling cyclinder input pressure oil of hydraulic efficiency pressure system, high-altitude operation platform carries out leveling, make the angle of high-altitude operation platform and horizontal surface be in ± scope of 0.3 ° in after, leveling stops.
The feature of above-mentioned high-altitude operation platform leveling system:
Angular transducer collects the angle of high-altitude operation platform and horizontal surface, detected value is passed to leveling control module, after the computing of leveling control module, the signal needing to export is passed to after the amplifier of leveling control module amplifies the proportion electro-magnet of leveling electro-hydraulic proportional valve, the spool setting in motion of leveling electro-hydraulic proportional valve, valve core opening degree increases gradually, leveling electro-hydraulic proportional valve pressure oil output, leveling cyclinder is entered through Bidirectional balanced valve, the piston rod of leveling cyclinder produces motion of stretching or contract, levelling gear realizes motor function, thus make high-altitude operation platform and leveling support under the effect of leveling cyclinder, rotate around the first adapter shaft, realize the leveling of high-altitude operation platform.The piston rod of leveling cyclinder can be locked at any position within the scope of total kilometrage by Bidirectional balanced valve, guarantee to be in horizontality after high-altitude operation platform leveling, make operator's safe operation, and can make the operator of aloft work platform quiet stop period operation always.The structural elements of this leveling system, all can adapt to reliable operation under the environment of-40 DEG C ~ 50 DEG C; Leveling system structure is simple, and each turning cylinder is without the need to regular maintaining, and leveling precision is high, leveling fast response time, greatly can promote the transaction capabilities of aerial platform, normally can work under complex environment.
This automatic horizontal control system, if due to this system electric components damage or malfunctioning, M/C can be adopted under emergency rating to carry out levelling altitude operation platform, then carry out the decline of aerial platform lifting mechanism, operator is dropped to ground safely.
The job platform leveling output response that the utility model solves the aerial platform of the mixing arm of single-stage or multi-stage expansion arm straps folding arm can have good working stability in the area that variation of ambient temperature is large.The area met variation of ambient temperature is larger still can stable operation.The response of the input and actuating unit that better can meet system leveling signal exports, and has good compatible with environment.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model is arranged on mixing arm aerial platform;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is leveling hydraulic system schematic diagram of the present utility model;
Fig. 4 is the automatic leveling diagram of circuit of high-altitude operation platform leveling system;
Fig. 5 is high-altitude operation platform M/C leveling diagram of circuit.
In figure: 1-oil pump, 2-leveling electro-hydraulic proportional valve (carry Non-follow control function and carry by pass valve), 3-Bidirectional balanced valve; 4-leveling cyclinder, 5-first adapter shaft, 6-second adapter shaft, 7-high-altitude operation platform, 8-angular transducer, 9-leveling control module, 10-leveling support, 11-the 3rd adapter shaft, 12-leveling hydraulic tubing, 13-folding arm,
14-telescopic boom, 15-basic arm.
Detailed description of the invention
Below in conjunction with accompanying drawing, utility model is elaborated.
See the job platform automatic leveling device of a kind of mixing arm aerial platform shown in Fig. 1, Fig. 2 and Fig. 3, comprise levelling gear, leveling hydraulic system and electric control system, its constructional feature is:
Described levelling gear comprise folding arm 13 that upper end is connected with telescopic boom 14, upper end by the hinged leveling support 10 in the first adapter shaft 5 and folding arm bottom, the high-altitude operation platform 7 be connected with leveling pedestal lower end portion, one end by the second adapter shaft 6 and the hinged other end in leveling pedestal upper end portion by the 3rd adapter shaft 11 leveling cyclinder 4 hinged with the upper end of folding arm 13, also comprise one end and be connected the telescopic boom 14 that the other end is connected with basic arm 15 with the upper end of folding arm 13.
Described leveling hydraulic system comprises the oil pump 1 be located on mixing arm aerial platform, the leveling electro-hydraulic proportional valve 2 be located on fuel tank, the Bidirectional balanced valve 3 be located on described leveling cyclinder 4, one end are communicated with the leveling hydraulic tubing 12 that the other end is communicated with described leveling voltage ratio valve 2 with leveling cyclinder.
Described electric control system comprises and is located at angular transducer 8 on described leveling support 10 and leveling control module 9, described angular transducer is electrically connected with leveling control module, and described leveling electro-hydraulic proportional valve 2 and Bidirectional balanced valve 3 are electrically connected with this leveling control module respectively.
Further, low solidifying antiwear hydraulic oil is filled in the fuel tank of described leveling hydraulic system.Its effect has good flowing power under the environment that difference variation is large, and the job platform automatic leveling device of mixing arm aerial platform is normally worked in range of temperature.
Further, outside the leveling hydraulic tubing 12 of described leveling hydraulic system, heat insulation layer is provided with.Under the driving of folding arm 13, telescopic boom 14 and the basic arm 15 hydraulic efficiency pressure system power element on mixing arm aerial platform, each arm assembly can produce relative position with horizontal surface to be changed, and high-altitude operation platform 7 also changes with the angle of horizontal surface thereupon.The angular transducer 8 be arranged on high-altitude operation platform 7 will detect the angular rate signal of high-altitude operation platform 7 and horizontal surface, and by this Signal transmissions to leveling control module 9, amplify process after the sequential operation of leveling control module 9, finally by with current signal transfer to the proportion electro-magnet of leveling electro-hydraulic proportional valve, after proportion electro-magnet obtains current input signal, promote the spool of leveling electro-hydraulic proportional valve 2 gradually, slowly increase the opening degree of spool, the pressure oil of leveling hydraulic system flows into leveling hydraulic tubing 12 through the opening of spool, the piston rod of leveling cyclinder 4 just can be made to produce through Bidirectional balanced valve 3 to stretch out or contractile motion and act on levelling gear, levelling gear realizes motor function, make high-altitude operation platform 7 and leveling support 10 under the effect of leveling cyclinder 4, rotate around the first adapter shaft 5, high-altitude operation platform 7 just realize levelling function.
The connecting portion of folding arm 13 and the first adapter shaft 5, leveling cyclinder 4 and the second adapter shaft 6, leveling cyclinder 4 and the 3rd adapter shaft 11 has all installed self-lubricating bearing, and high-altitude operation platform 7 friction drag in rotation process is little, and flexibly, leveling is active in one's movements in motion.
The interior discharge of leveling cyclinder 4 and Bidirectional balanced valve 3 is all very little, controls at 0.05ml/min.
All parts of leveling system all must have good low-temperature working performance, and working medium uses low solidifying antiwear hydraulic oil.
Angular transducer 8, transmission route between leveling control module 9 and the proportion electro-magnet of leveling electro-hydraulic proportional valve 2 have employed silver-plated wire harness; The frequency of operation of the proportion electro-magnet of leveling electro-hydraulic proportional valve 2 is selected between 200 ~ 400HZ; The hydraulic power source of leveling hydraulic system is independently, and the output of pressure oil is not by the interference of other factors, and the actual delivery rate of (small displacement) oil pump 1 is greater than 8L/min; Except having relative motion hydraulic tubing, adopt hard tubing from Bidirectional balanced valve 3 to leveling electro-hydraulic proportional valve 2, tubing adopts heat preserving and insulating material parcel as far as possible.These project and measures can shorten electric signal transmission time and hydraulic pressure system construction in a systematic way pressure time greatly, shorten delay time, improve leveling system speed of response, can also work simultaneously under complicated rugged environment.
fig. 4 is the automatic leveling diagram of circuit of high-altitude operation platform leveling system.
Fig. 5 is high-altitude operation platform M/C leveling diagram of circuit.
Claims (3)
1. a job platform automatic leveling device for mixing arm aerial platform, comprises levelling gear, leveling hydraulic system and electric control system, it is characterized in that:
Described levelling gear comprises folding arm (13) that upper end is connected with telescopic boom (14), upper end passes through the hinged leveling cyclinder (4) in the upper end of the 3rd adapter shaft (11) and folding arm (13) by the first adapter shaft (5) leveling support (10) hinged with folding arm bottom, the high-altitude operation platform (7) is connected with leveling pedestal lower end portion, one end by the second adapter shaft (6) and the hinged other end in leveling pedestal upper end portion, also comprises one end and is connected the telescopic boom (14) that the other end is connected with basic arm (15) with the upper end of folding arm (13);
Described leveling hydraulic system comprises the oil pump (1) be located on mixing arm aerial platform, the leveling electro-hydraulic proportional valve (2) be located on fuel tank, the Bidirectional balanced valve (3) be located on described leveling cyclinder (4), one end are communicated with the leveling hydraulic tubing (12) that the other end is communicated with described leveling voltage ratio valve (2) with leveling cyclinder;
Described electric control system comprises and is located at angular transducer (8) on described leveling support (10) and leveling control module (9), described angular transducer is electrically connected with leveling control module, and described leveling electro-hydraulic proportional valve (2) and Bidirectional balanced valve (3) are electrically connected with this leveling control module respectively.
2. the job platform automatic leveling device of a kind of mixing arm aerial platform according to claim 1, is characterized in that: fill low solidifying antiwear hydraulic oil in the fuel tank of described leveling hydraulic system.
3. the job platform automatic leveling device of a kind of mixing arm aerial platform according to claim 1 and 2, is characterized in that: be provided with heat insulation layer in leveling hydraulic tubing (12) outside of described leveling hydraulic system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599109.7U CN204111267U (en) | 2014-10-16 | 2014-10-16 | A kind of job platform automatic leveling device of mixing arm aerial platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420599109.7U CN204111267U (en) | 2014-10-16 | 2014-10-16 | A kind of job platform automatic leveling device of mixing arm aerial platform |
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| Publication Number | Publication Date |
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| CN204111267U true CN204111267U (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420599109.7U Expired - Fee Related CN204111267U (en) | 2014-10-16 | 2014-10-16 | A kind of job platform automatic leveling device of mixing arm aerial platform |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600691A (en) * | 2015-12-11 | 2016-05-25 | 上海广成涂装技术工程有限公司 | Precise motion control system for telescopic arm of aerial work platform |
| CN105668469A (en) * | 2016-03-29 | 2016-06-15 | 兖州煤业股份有限公司 | Maintenance platform for hydraulic supports |
| CN109019460A (en) * | 2018-10-31 | 2018-12-18 | 徐州徐工随车起重机有限公司 | A kind of height idle job vehicle levelling mechanism and height idle job vehicle |
-
2014
- 2014-10-16 CN CN201420599109.7U patent/CN204111267U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105600691A (en) * | 2015-12-11 | 2016-05-25 | 上海广成涂装技术工程有限公司 | Precise motion control system for telescopic arm of aerial work platform |
| CN105668469A (en) * | 2016-03-29 | 2016-06-15 | 兖州煤业股份有限公司 | Maintenance platform for hydraulic supports |
| CN105668469B (en) * | 2016-03-29 | 2019-06-11 | 兖州煤业股份有限公司 | A kind of hydraulic support inspection platform |
| CN109019460A (en) * | 2018-10-31 | 2018-12-18 | 徐州徐工随车起重机有限公司 | A kind of height idle job vehicle levelling mechanism and height idle job vehicle |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhou Dijun Inventor after: Shen Yongqiang Inventor after: Song Liqiang Inventor after: Wang Haiping Inventor after: Yang Min Inventor after: Zeng Xinghua Inventor before: Zhou Dijun Inventor before: Shen Yongqiang Inventor before: Song Liqiang Inventor before: Wang Haiping Inventor before: Yang Min Inventor before: Zeng Xinghua |
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| TR01 | Transfer of patent right |
Effective date of registration: 20190515 Address after: 401321 No. 601-1 Yudong Dajiangxi Road, Banan District, Chongqing Patentee after: Chongqing Dajiang Donglong Special Vehicle Co.,Ltd. Address before: 401321 Dajiang Industrial Park, Yudong Town, Banan District, Chongqing Patentee before: CHONGQING DAJIANG INDUSTRY Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 Termination date: 20211016 |
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| CF01 | Termination of patent right due to non-payment of annual fee |