CN104595480A - Internal combustion hydraulic forklift transmission safety limiting system - Google Patents
Internal combustion hydraulic forklift transmission safety limiting system Download PDFInfo
- Publication number
- CN104595480A CN104595480A CN201510001278.5A CN201510001278A CN104595480A CN 104595480 A CN104595480 A CN 104595480A CN 201510001278 A CN201510001278 A CN 201510001278A CN 104595480 A CN104595480 A CN 104595480A
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- CN
- China
- Prior art keywords
- oil
- valve
- controller
- oil pipe
- slide valve
- 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.)
- Granted
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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
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
- B66F17/003—Safety devices, e.g. for limiting or indicating lifting force for fork-lift trucks
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- 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
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
- B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
- B66F9/075—Constructional features or details
- B66F9/07509—Braking
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Civil Engineering (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses an internal combustion hydraulic forklift transmission safety limiting system, which comprises a pressure sensor, a controller, a warning device, an electromagnetic slide valve, an inching valve, a buffer valve, a gear shifting operation valve, a main pressure regulating valve, an oil pump, a coarse oil filter, a fine oil filter, an oil tank, an overflow valve and a torque converter, wherein the pressure sensor is arranged on a cargo fork of a forklift; the controller is arranged on the forklift, and is connected with the pressure sensor through a signal wire; the warning device is connected with the controller through a signal wire; the electromagnetic slide valve is connected with the controller through a signal wire; the oil tank is connected with an oil inlet of the main pressure regulating valve through an oil pipe; two oil outlets of the main pressure regulating valve are respectively connected with an oil inlet of the electromagnetic slide valve and an oil inlet of the torque converter through oil pipes, in addition, the fine filter and the overflow valve are arranged on the oil pipe connected with the torque converter; the electromagnetic slide valve comprises a left oil outlet and a right oil outlet; the right oil outlet is connected with the oil tank through an oil pipe, and the left oil outlet is connected with the gear shifting operation valve through an oil pipe. The internal combustion hydraulic forklift transmission safety limiting system has the advantages that the structure is simple, and safety and practicability are realized, and the like.
Description
Technical field
The present invention relates to internal combustion hydraulic fork lift technical field, specifically a kind of internal combustion hydraulic fork lift transmission safety-restraint system.
Background technique
Along with logistlcs technology development and the quickening of process of industrialization, fork truck technology obtains significant progress, and the consciousness of protection safety is strengthened day by day, domestic diesel fork lift truck ubiquity overloading, current domestic main counter-measure carries out warning function to overload, and be used on electri forklift in the majority.
The overload alarm of current fork truck can only play the function of reminding driver's overload.If driver safety consciousness is not enough, fork truck is when overloading traveling, particularly there is safety hidden (easily cause tumble, the security incident such as rollover) when ramp, turning, handling goods equally, and because transmission system overload operation, affect the working life of the transmission paries such as motor, gearbox, ransaxle.
Summary of the invention
For solving the problem, the invention discloses a kind of internal combustion hydraulic fork lift transmission safety-restraint system, comprising: pressure transducer, controller, alarm buzzer, magnetic slide valve, inching valve, trimmer valve, gear shift operation valve, main pressure regulator valve, oil pump, coarse oil filter, thin oil purifier, fuel tank, relief valve, torque-converters, described pressure transducer is arranged on the pallet fork of fork truck, described controller is arranged on fork truck, and be connected with pressure transducer by signaling line, described alarm buzzer is connected by signaling line with controller, described magnetic slide valve is connected by signaling line with controller, and described fuel tank is connected by oil pipe with main pressure regulator valve filler opening, and connected pipes is provided with coarse oil filter, oil pump, two oil outlets of described main pressure regulator valve respectively with magnetic slide valve filler opening, torque-converters filler opening is connected by oil pipe, and the oil pipe be connected with torque-converters is provided with thin oil purifier, relief valve, described magnetic slide valve contains two oil outlets in left and right, and right oil outlet is connected with fuel tank by oil pipe, and left oil outlet is connected with gear shift operation valve by oil pipe, and the oil pipe be connected with gear shift operation valve is provided with inching valve, trimmer valve.
The present invention is a kind of internal combustion hydraulic fork lift transmission safety-restraint system, the basis of original gearbox oil way is improved, by increasing a magnetic slide valve between main pressure regulator valve and inching valve, according to the difference of the working state of magnetic slide valve, thus change oil circuit; And the working state of magnetic slide valve is according to being arranged on signal deciding that pressure inductor on fork of forklift truck gathers.Oil in fuel tank is extracted out through main pressure regulator valve by oil pump, oil content is two parts by main pressure regulator valve, a part is supplied to torque-converters, and a part is supplied to magnetic slide valve, when goods on pallet fork is not overweight, pressure transducer does not produce signal, alarm buzzer is not reported to the police, and what magnetic slide valve was connected is left oil circuit, and oil enters into gear shift operation valve through magnetic slide valve, gearbox oil way is normal, and fork truck is normally walked, when goods on pallet fork overloads, pressure transducer produces signal, by signaling line, signal is sent to controller, controller is by after signal transacting, magnetic slide valve and alarm buzzer is sent to by signaling line, alarm buzzer gives the alarm, magnetic slide valve changes working state, close left oil circuit, connect right oil circuit, oil in magnetic slide valve is flowed back to fuel tank by oil pipe, now there is no oil in gear shift operation valve for its work, similar with neutral, fork truck cannot normally be walked, after the goods of overload is unloaded, pressure inductor, no longer send signal, controller no longer receives signal, alarm buzzer quits work, magnetic slide valve restPoses, connect left oil circuit, gearbox oil way is normal, fork truck is normally walked.
The present invention changes original in artificial mode of closing inching valve cut-out gear shift operation valve oil road, and the signal gathered by fork of forklift truck upward pressure sensor, changes the working state of magnetic slide valve, thus cuts off the oil circuit of gear shift operation valve.The present invention not only can report to the police to driver, but also oneself braking simultaneously, ensure that the safety of driver, improve the working life of the transmission paries such as motor, gearbox, ransaxle.
The present invention has the advantages such as structure is simple, safe and practical.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of internal combustion hydraulic fork lift of the present invention transmission safety-restraint system.
Wherein: 1-pressure transducer; 2-controller; 3-alarm buzzer; 4-magnetic slide valve; 5-inching valve; 6-trimmer valve; 7-gear shift operation valve; 8-main pressure regulator valve; 9-oil pump; 10-coarse oil filter; The thin oil purifier of 11-; 12-fuel tank; 13-relief valve; 14-torque-converters.
Embodiment
A kind of internal combustion hydraulic fork lift transmission safety-restraint system as shown in Figure 1, comprising: pressure transducer 1, controller 2, alarm buzzer 3, magnetic slide valve 4, inching valve 5, trimmer valve 6, gear shift operation valve 7, main pressure regulator valve 8, oil pump 9, coarse oil filter 10, thin oil purifier 11, fuel tank 12, relief valve 13, torque-converters 14, described pressure transducer 1 is arranged on the pallet fork of fork truck, described controller 2 is arranged on fork truck, and be connected with pressure transducer 1 by signaling line, described alarm buzzer 3 is connected by signaling line with controller 2, described magnetic slide valve 4 is connected by signaling line with controller 2, and described fuel tank 12 is connected by oil pipe with main pressure regulator valve 8 filler opening, and connected pipes is provided with coarse oil filter 10, oil pump 9, two oil outlets of described main pressure regulator valve 8 respectively with magnetic slide valve 4 filler opening, torque-converters 14 filler opening is connected by oil pipe, and the oil pipe be connected with torque-converters 14 is provided with thin oil purifier 11, relief valve 13, described magnetic slide valve 4 is containing two, left and right oil outlet, and right oil outlet is connected with fuel tank 12 by oil pipe, and left oil outlet is connected with gear shift operation valve 7 by oil pipe, and the oil pipe be connected with gear shift operation valve 7 is provided with inching valve 5, trimmer valve 6.
Last it is noted that above embodiment only in order to illustrate the present invention and and unrestricted technological scheme described in the invention; Therefore, although this specification with reference to each above-mentioned embodiment to present invention has been detailed description, those of ordinary skill in the art should be appreciated that and still can modify to the present invention or equivalent to replace; And all do not depart from technological scheme and the improvement thereof of the spirit and scope of the present invention, it all should be encompassed in right of the present invention.
Claims (1)
1. an internal combustion hydraulic fork lift transmission safety-restraint system, comprising: pressure transducer, controller, alarm buzzer, magnetic slide valve, inching valve, trimmer valve, gear shift operation valve, main pressure regulator valve, oil pump, coarse oil filter, thin oil purifier, fuel tank, relief valve, torque-converters, it is characterized in that: described pressure transducer is arranged on the pallet fork of fork truck, described controller is arranged on fork truck, and be connected with pressure transducer by signaling line, described alarm buzzer is connected by signaling line with controller, described magnetic slide valve is connected by signaling line with controller, and described fuel tank is connected by oil pipe with main pressure regulator valve filler opening, and connected pipes is provided with coarse oil filter, oil pump, two oil outlets of described main pressure regulator valve respectively with magnetic slide valve filler opening, torque-converters filler opening is connected by oil pipe, and the oil pipe be connected with torque-converters is provided with thin oil purifier, relief valve, described magnetic slide valve contains two oil outlets in left and right, and right oil outlet is connected with fuel tank by oil pipe, and left oil outlet is connected with gear shift operation valve by oil pipe, and the oil pipe be connected with gear shift operation valve is provided with inching valve, trimmer valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001278.5A CN104595480B (en) | 2015-01-05 | 2015-01-05 | A kind of internal combustion hydraulic fork lift is driven safety-restraint system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001278.5A CN104595480B (en) | 2015-01-05 | 2015-01-05 | A kind of internal combustion hydraulic fork lift is driven safety-restraint system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104595480A true CN104595480A (en) | 2015-05-06 |
| CN104595480B CN104595480B (en) | 2018-06-08 |
Family
ID=53121441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510001278.5A Active CN104595480B (en) | 2015-01-05 | 2015-01-05 | A kind of internal combustion hydraulic fork lift is driven safety-restraint system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104595480B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379975A (en) * | 2017-07-20 | 2017-11-24 | 重庆麦科斯新能源车业有限责任公司 | Extended-range electric vehicle dynamical system |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085793U (en) * | 1991-01-20 | 1991-10-02 | 梁庆泉 | Simple electric hydraulic forklift |
| CN1405079A (en) * | 2001-08-13 | 2003-03-26 | 同济大学 | Fully-hydraulic electric fork truck |
| CN2588103Y (en) * | 2002-11-26 | 2003-11-26 | 张勇 | Energy-saving self-locking hydraulic controlled one direction multi-way change valve |
| US20070089934A1 (en) * | 2005-10-22 | 2007-04-26 | Jungheinrich Aktiengesellschaft | Lifting mast for a lift truck |
| CN102020212A (en) * | 2010-12-01 | 2011-04-20 | 安徽星马汽车股份有限公司 | Mobile hydraulic safety device of overloading restart of hoisting vehicle |
| CN203604618U (en) * | 2013-10-14 | 2014-05-21 | 浙江中柴机器有限公司 | Hydraulic control system of hydraulic drive transmission |
| CN204003795U (en) * | 2014-06-13 | 2014-12-10 | 广东伊之密精密注压科技有限公司 | A kind of responsive pressure relief device for activated actuator pump system |
-
2015
- 2015-01-05 CN CN201510001278.5A patent/CN104595480B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2085793U (en) * | 1991-01-20 | 1991-10-02 | 梁庆泉 | Simple electric hydraulic forklift |
| CN1405079A (en) * | 2001-08-13 | 2003-03-26 | 同济大学 | Fully-hydraulic electric fork truck |
| CN2588103Y (en) * | 2002-11-26 | 2003-11-26 | 张勇 | Energy-saving self-locking hydraulic controlled one direction multi-way change valve |
| US20070089934A1 (en) * | 2005-10-22 | 2007-04-26 | Jungheinrich Aktiengesellschaft | Lifting mast for a lift truck |
| CN102020212A (en) * | 2010-12-01 | 2011-04-20 | 安徽星马汽车股份有限公司 | Mobile hydraulic safety device of overloading restart of hoisting vehicle |
| CN203604618U (en) * | 2013-10-14 | 2014-05-21 | 浙江中柴机器有限公司 | Hydraulic control system of hydraulic drive transmission |
| CN204003795U (en) * | 2014-06-13 | 2014-12-10 | 广东伊之密精密注压科技有限公司 | A kind of responsive pressure relief device for activated actuator pump system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107379975A (en) * | 2017-07-20 | 2017-11-24 | 重庆麦科斯新能源车业有限责任公司 | Extended-range electric vehicle dynamical system |
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| Publication number | Publication date |
|---|---|
| CN104595480B (en) | 2018-06-08 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 237000 18 Shengli South Road, Lu'an concentrated demonstration park, Lu'an, Anhui Applicant after: Anhui Vernay heavy Limited by Share Ltd Address before: 237161 Jinan Economic Development Zone, Lu'an City, Anhui Province Applicant before: Anhui Vmax Machinery Co., Ltd. |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Internal combustion hydraulic forklift transmission safety limiting system Effective date of registration: 20190723 Granted publication date: 20180608 Pledgee: Lu'an Jin'an financing Company limited by guarantee Pledgor: Anhui Vernay heavy Limited by Share Ltd Registration number: 2019990000766 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20211215 Granted publication date: 20180608 Pledgee: Lu'an Jin'an financing Company limited by guarantee Pledgor: ANHUI VMAX HEAVY INDUSTRY CO.,LTD. Registration number: 2019990000766 |