CN201809132U - Speed-limiting alarm device for forklift truck - Google Patents
Speed-limiting alarm device for forklift truck Download PDFInfo
- Publication number
- CN201809132U CN201809132U CN2010205518349U CN201020551834U CN201809132U CN 201809132 U CN201809132 U CN 201809132U CN 2010205518349 U CN2010205518349 U CN 2010205518349U CN 201020551834 U CN201020551834 U CN 201020551834U CN 201809132 U CN201809132 U CN 201809132U
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- China
- Prior art keywords
- fork truck
- alarm device
- tachogenerator
- controller
- speed
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Abstract
The utility model discloses a speed-limiting alarm device for a forklift truck, which comprises a power supply converter, an alarm indication circuit, metal forms, a tachogenerator and a controller, wherein the metal forms are installed at the rotational parts of wheels of a forklift truck and uniformly distributed according to a prescribed density, and can rotate with the wheels; the tachogenerator is installed on a shaft of the forklift truck; the controller is arranged at one side of an electric control panel; and the tachogenerator and the controller are electrically connected with each other. The utility model has the beneficial effect that the tachogenerator is adopted to detect speed signals of the wheels, and under the conditions of not changing the original control system of the forklift truck and not reducing the original driving force of the forklift truck, the reliable operation of the device is ensured through the controller; and the speed-limiting alarm device is simple in installation and low in cost, and can limit the safety speed of the forklift trucks traveling in factory buildings and factory areas, thereby avoiding the occurrence of personal injuries and cargo damages.
Description
Technical field
The utility model relates to a kind of automobile-used speed warning device.Particularly relate to a kind of fork truck speed limit alarm device.
Background technology
The dynamic device of chief component, driving device, steering hardware, equipment, hydraulic efficiency pressure system and the brake equipment of existing fork truck.
Engine installation: two kinds of combustion engine and storage battery-electrical motors are arranged for what fork truck was used as power device.Requiring tighter occasion should adopt storage battery-electrical motor to noise and aerial contamination is power, as using combustion engine noise silencer and waste gas purification apparatus should be housed.
Driving device: in order to prime power is passed to drive wheel, have machinery, fluid power with 3 kinds of hydraulic pressure.Mechanical drive is made up of power-transfer clutch, change speed gear box and drive axle.Hydraulic transmission system is made up of turbine transformer, Powershift transmission and drive axle.Hydraulic actuator is made up of Hydraulic Pump, valve and HM Hydraulic Motor etc.The characteristics of fork truck driving device are that gear number and the speed advancing, retreat are roughly the same.
Steering hardware:, generally form by deflector, steering track rod and wheel flutter etc. in order to the travel direction of control fork truck.Fork truck below 1 ton generally adopts manual steering gear, and the fork truck more than 1 ton adopts power steering mostly.The characteristics of fork truck steering device are the rear portion of wheel flutter at car body.
Equipment: promote the mechanism of goods, be called door frame again.Form by inner upright mounting, outer mast, goods shelf, pallet fork, sprocket wheel, chain, lift oil tank and dump ram etc.The outer mast lower end is hinged on the vehicle frame, and middle part and dump ram are hinged.Because dump ram is flexible, door frame can tilt forward and back (degree of dip is generally 6 °～12 °), makes in pallet fork fork goods and the handling process goods stable.Inner upright mounting has roller, is embedded in the outer mast, and inner upright mounting can partly stretch out outer mast when rising.Goods shelf has roller, is embedded in the inner upright mounting, can up-and-down movement.The bottom of lift oil tank is fixed on the outer mast bottom, and the piston rod of oil cylinder moves up and down along the helical pitch bar on the inner upright mounting.Sprocket wheel is equipped with at the top of piston rod, and chain one end that hoists is fixed on the outer mast, and the other end is walked around sprocket wheel and linked to each other with goods shelf.When the piston rod part band sprocket wheel and hoisted, chain raised up pallet fork and goods shelf together.When beginning to promote only pallet fork hoist, could drive the inner upright mounting rising after the inner upright mounting until the piston masthead, the ascending velocity of inner upright mounting is 1/2 of a pallet fork.Pallet fork hoists and the inner upright mounting maximum height that pallet fork can hoist when motionless is called free hoisting depth.General free hoisting depth is about 300mm.When goods shelf rise be raised to the inner upright mounting top after, inner upright mounting just and the door frame that hoists simultaneously of goods shelf is called the full door frame that freely promotes.Fork truck sprocket wheel more than 10 tons directly is fixed on the inner upright mounting top mostly, and lift oil tank pushes up the act door frame at the very start, so can not freely promote.The fork truck that freely promotes can enter than its high slightly door opening.The full fork truck that freely promotes is used in short place, can not cause pallet fork can not be raised to the shortcoming of specified altitude because inner upright mounting pushes up the roof, so it also is adapted at cabin, the interior operation of freight container.For making the driver have the visual field preferably, lift oil tank is used two and be arranged in door frame both sides person instead, is called wide visual field door frame.This door frame replaces common door frame gradually.
Hydraulic efficiency pressure system:, form by oil pump, multiple directional control valve and pipeline etc. for pallet fork lifting and door frame tilt to provide the device of power.
Brake equipment: similar to the brake equipment of automobile, but the drg of fork truck only is arranged on the drive wheel.
Important conveyance during fork truck is produced as current modern industry, because it often travels on the bigger place of the stream of people in the operating area, fork truck hypervelocity particularly indoor, on-site is quite dangerous.Active demand a kind of device that fork truck speed is limited in market is to avoid causing the generation of personal injury and goods damage accident.
Summary of the invention
Technical problem to be solved in the utility model is that providing a kind of can limit fork truck speed, with the fork truck speed limit alarm device of avoiding personal injury and goods damage accident to take place.
The technical scheme that the utility model adopted is: the fork truck speed limit alarm device, comprise: supply convertor, warning indicating circuit, rotating element at the fork truck wheel is equipped with wheel and as prescribed density well-distributed metallic object, the tachogenerator of installation is set on fork truck wheel axis body and is arranged on the PLC controller of electric control panel one side; Described tachogenerator is electrically connected mutually with described PLC controller.
Described supply convertor adopts DC48V to change the voltage transformer of DC24V.
Spacing between the rectangular distribution metallic object that described fork truck wheel is partly installed is 10-30mm.
The described PLC controller that is arranged on electric control panel one side is close to car body and is installed.
The PLC Programmable Logic Controller that described PLC controller adopts U.S. Horner-APG company to produce.
The probe segment of described tachogenerator and between the metallic object that the rotating element of fork truck wheel is installed, keep the distance of 3-10mm.
On the fork truck axletree, be provided with fixed support and be used for fixing the probe segment that described tachogenerator is installed.
The utility model beneficial effect be: adopt tachogenerator inspection vehicle wheel speed signal, do not changing the original control system of fork truck, do not reduce under the former dynamic situation of fork truck, guarantee the reliability service of this device by controller, this device is installed simple, with low cost, the fork truck that factory building, on-site are travelled carries out the safety speed restriction, avoids the generation of personal injury and goods damage accident.
Description of drawings
Fig. 1 is a circuit theory diagram of block of the present utility model;
Fig. 2 is the tachogenerator scheme drawing that the utility model is installed;
Fig. 3 is schematic circuit diagram of the present utility model.
Among the figure:
11: tachogenerator 12: tachogenerator support 13: metallic object
14: wheel axis body 22:PLC controller 33: supply convertor
44: the warning indicating circuit
The specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further described in detail:
Fig. 1 is a circuit theory diagram of block of the present utility model; As shown in Figure 1, the fork truck speed limit alarm device, comprise: supply convertor 33 and warning indicating circuit 44, rotating element at the fork truck wheel is equipped with wheel and as prescribed density well-distributed metallic object 13, the tachogenerator 11 of installation is set on fork truck wheel axis body 14 and is arranged on the PLC controller 22 of electric control panel one side; Tachogenerator 11 is electrically connected mutually with PLC controller 22.Supply convertor 33 adopts DC48V to change the voltage transformer of DC24V.Spacing between the rectangular distribution metallic object 13 that described fork truck wheel is partly installed is 10-30mm.The PLC controller 22 that is arranged on electric control panel one side should be close to the car body installation for the ease of heat radiation.The PLC Programmable Logic Controller that PLC controller 22 adopts U.S. Horner-APG company to produce.The probe segment of tachogenerator 11 and between the metallic object 13 that the rotating element of fork truck wheel is installed, keep the distance of 3-10mm.
Because fork truck itself has the 48V storage battery, the needed power supply of controller is directly provided by Vehicular accumulator cell, and the supply convertor 33 that changes DC24V by a DC48V just can solve power issue.
Fig. 2 is the tachogenerator scheme drawing that the utility model is installed; Fig. 3 is schematic circuit diagram of the present utility model.Shown in Figure 3 as Fig. 2, tachogenerator 11 is installed on the wheel axis body 14 fixing, is provided with fixed support 12 and is used for fixing the probe segment that described tachogenerator 11 is installed on the fork truck axletree.Install one with the metallic object 13 of wheel at the rotating element of wheel by certain Density Distribution; after fork truck starts; wheel whenever turns around; tachogenerator 11 can be by responding to the impulse singla that this metallic object 13 sends fixed frequency; after this impulse singla converted to speed signal; again speed signal is sent in the PLC Programmable Logic Controller 22, thereby reaches restriction and protection fork truck speed.
Overspeed alarming indicator lamp, cruising indicator lamp are installed on the controller box and stop indicator lamp, if the moving velocity of fork truck does not surpass limited speed, then the normal lamp on the controller box is connected.If the moving velocity of fork truck surpasses limited speed, the external hypervelocity lamp of controller case is connected, and controller box is installed in and makes things convenient for navigating mate to see warning and reset operation in the operator's compartment.In PLC controller 22, can set limited speed, when fork truck speed surpasses limited speed, this control setup sends alerting signal and reminds chaufeur to note, when the speed hypervelocity was not also slowed down after one second, controller can be controlled fork truck and force to stop, power supply by controller cut-out fork truck stops by force, and the indicator lamp that stops on the controller box is also connected demonstration simultaneously.Having only chaufeur to carry out manual reset operation back fork truck just can restart.Fork truck is loaded onto this device and can actv. is avoided fork truck to overrun travelling, guaranteed the safety traffic of fork truck.
The utility model is widely applicable, is fit to all fork trucks, Forklift, electronic tray carriage, tractor truck, logistics carrying vehicles such as storage battery car, the optional dress explosion prevention function of supply convertor model.Simple and fast is installed, the original parts of fork truck is not made any change, fully independently control system.
It is worthy of note; protection domain of the present utility model is not limited to above-mentioned instantiation mode, and according to basic fundamental design of the present utility model, those of ordinary skills need not through creative work; the embodiment that can associate all belongs to protection scope of the present invention.
Claims (7)
1. fork truck speed limit alarm device, comprise: supply convertor (33), warning indicating circuit, it is characterized in that, also comprise: the rotating element at the fork truck wheel is equipped with wheel and as prescribed density well-distributed metallic object (13), the tachogenerator (11) of installation is set on fork truck wheel axis body (14) and is arranged on the PLC controller (22) of electric control panel one side; Described tachogenerator (11) is electrically connected mutually with described PLC controller (22).
2. fork truck speed limit alarm device according to claim 1 is characterized in that, described supply convertor (33) adopts DC48V to change the voltage transformer of DC24V.
3. fork truck speed limit alarm device according to claim 1 is characterized in that, the spacing between the rectangular distribution metallic object (13) that described fork truck wheel is partly installed is 10-30mm.
4. fork truck speed limit alarm device according to claim 1 is characterized in that, the described PLC controller (22) that is arranged on electric control panel one side is close to car body and is installed.
5. fork truck speed limit alarm device according to claim 1 is characterized in that, the PLC Programmable Logic Controller that described PLC controller (22) adopts U.S. Horner-APG company to produce.
6. fork truck speed limit alarm device according to claim 1 is characterized in that, the probe segment of described tachogenerator (11) and keep the distance of 3-10mm between the metallic object (13) that the rotating element of fork truck wheel is installed.
7. fork truck speed limit alarm device according to claim 4 is characterized in that, is provided with fixed support (12) and is used for fixing the probe segment that described tachogenerator (11) is installed on the fork truck axletree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205518349U CN201809132U (en) | 2010-10-08 | 2010-10-08 | Speed-limiting alarm device for forklift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205518349U CN201809132U (en) | 2010-10-08 | 2010-10-08 | Speed-limiting alarm device for forklift truck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201809132U true CN201809132U (en) | 2011-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205518349U Expired - Lifetime CN201809132U (en) | 2010-10-08 | 2010-10-08 | Speed-limiting alarm device for forklift truck |
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| CN (1) | CN201809132U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712752A (en) * | 2015-03-16 | 2015-06-17 | 林德（中国）叉车有限公司 | High-speed reversing protection device for gearbox |
| CN105197843A (en) * | 2015-10-19 | 2015-12-30 | 广东亚克迪智能物流科技有限公司 | Semi-electric piling car |
| CN108153221A (en) * | 2017-11-24 | 2018-06-12 | 赤湾集装箱码头有限公司 | A kind of universal computer that container flowing loading mechanization control is realized based on PLC |
| CN108253158A (en) * | 2016-12-28 | 2018-07-06 | 比亚迪股份有限公司 | Flow control valve and with its fork truck |
-
2010
- 2010-10-08 CN CN2010205518349U patent/CN201809132U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104712752A (en) * | 2015-03-16 | 2015-06-17 | 林德（中国）叉车有限公司 | High-speed reversing protection device for gearbox |
| CN105197843A (en) * | 2015-10-19 | 2015-12-30 | 广东亚克迪智能物流科技有限公司 | Semi-electric piling car |
| CN108253158A (en) * | 2016-12-28 | 2018-07-06 | 比亚迪股份有限公司 | Flow control valve and with its fork truck |
| CN108153221A (en) * | 2017-11-24 | 2018-06-12 | 赤湾集装箱码头有限公司 | A kind of universal computer that container flowing loading mechanization control is realized based on PLC |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: TIANJIN AGV TECHNOLOGY DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: TIANJIN ZHANFUSI TECHNOLOGY CO., LTD. Effective date: 20111108 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111108 Address after: 300384 Tianjin Alex Hua Tian Nankai District Huayuan Industrial District Road No. 8 Haitai Information Plaza D block, room 612-2 Patentee after: TIANJIN AGV ROBOT MANUFACTURING CO., LTD. Address before: 300384 Tianjin Nankai District Huayuan new technology industrial park Torch Hotel, room 4026 Patentee before: Tianjin General Facility Service Science & Technology Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20110427 |
|
| CX01 | Expiry of patent term |