CN105692517B - A kind of Telescopic handler come to nothing automatically shelves protection system - Google Patents
A kind of Telescopic handler come to nothing automatically shelves protection system Download PDFInfo
- Publication number
- CN105692517B CN105692517B CN201610154979.7A CN201610154979A CN105692517B CN 105692517 B CN105692517 B CN 105692517B CN 201610154979 A CN201610154979 A CN 201610154979A CN 105692517 B CN105692517 B CN 105692517B
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- CN
- China
- Prior art keywords
- enable pin
- pump controller
- walking
- time
- relay
- 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.)
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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
Abstract
The invention discloses a kind of Telescopic handler come to nothing automatically shelves protection system, handle and walking pump controller be connected, neutral switch and relay series connection, seating pressure switch and time-delay relay connects；Walking pump controller has an Enable Pin, and pump controller Enable Pin high level of walking is effective；Relay and time-delay relay contact series are connected to walking pump controller Enable Pin.When neutral switch closes, and relay disconnects with walking pump controller Enable Pin, Enable Pin is low level；Closed when seating pressure switchs, when time-delay relay is connected with walking pump controller Enable Pin, Enable Pin is high level；Seating pressure switchs, and when driver sits on the seat, seating pressure switch closure, time-delay relay coil obtains electric, and contact closes at once；When driver leaves seat, seating pressure switches off, time-delay relay coil losing electricity, and contact disconnects after delay a period of time, and vehicle can come to nothing shelves automatically, prevent maloperation.
Description
Technical field
The present invention relates to an a kind of automatic grade system of coming to nothing, and in particular to a kind of Telescopic handler comes to nothing shelves protection system automatically
System, belongs to technical field of engineering machinery.
Background technology
Telescopic handler is widely used in agricultural production on the ground such as the American-European, Middle East and Australia and industry is built
If.When driver not on the seat when, if maloperation advance, retreat switch can cause very big danger.At present, telescopic forklift fills
Most of machine do not come to nothing automatically shelves protection system, certain potential safety hazard be present.
The content of the invention
Purpose：In order to overcome the deficiencies in the prior art, the present invention provides a kind of Telescopic handler and come to nothing automatically
Shelves protection system, there is the function for the shelves that come to nothing automatically after operator leaves seat 5 seconds, to ensure vehicle safety.
Technical scheme：In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of Telescopic handler come to nothing automatically shelves protection system, it is characterised in that：Including advancing, retreating switch, walking
Pump controller, neutral switch, relay, seating pressure switch and time-delay relay；Handle is connected with walking pump controller, neutral gear
Switch and relay series connection, seating pressure switch and time-delay relay series connection；
The walking pump controller has an Enable Pin, and pump controller Enable Pin high level of walking is effective；
Relay and time-delay relay contact series are connected to walking pump controller Enable Pin, when neutral switch closure, relay
When device disconnects with walking pump controller Enable Pin, Enable Pin is low level；Closed when seating pressure switchs, time-delay relay and row
When walking pump controller Enable Pin and being connected, Enable Pin is high level；
Seating pressure switchs, when driver sits on the seat, seating pressure switch closure；When driver leaves seat
When, seating pressure switches off；
Time-delay relay, when seating pressure, which switchs, to be closed, coil obtains electric, and contact closes at once；When seating pressure switchs
Disconnect, coil losing electricity, contact disconnects after delay a period of time.
Described Telescopic handler come to nothing automatically shelves protection system, it is characterised in that：It is described to advance, retreat switch and row
Walk pump controller to be connected, can automatically reset.
Preferably, described Telescopic handler come to nothing automatically shelves protection system, it is characterised in that：The delay
Relay is delayed five seconds and powered off.
The walking pump controller, when Enable Pin is high level, advances or backing signal is just effective, i.e., vehicle just may be used
To advance or retreat；When Enable Pin is low level, advances or backing signal is invalid；By controlling walking pump controller to make
Energy end is high level or low level to realize the control to gear.
Preferably, described Telescopic handler come to nothing automatically shelves protection system, it is characterised in that：Also include sky
Shelves indicator lamp, the neutral indicatorlamp are connected with walking pump controller.
Beneficial effect：Compared with prior art, be configured with Telescopic handler provided by the invention come to nothing automatically shelves protection
The Telescopic handler advantage of system is, is realized by controlling the height for pump controller Enable Pin level of walking to gear
Control, when driver left seat more than 5 seconds, vehicle can come to nothing shelves automatically, prevent maloperation, by prompting work(with neutral gear
Can, solve potential safety hazard of the prior art.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
In figure：1st, advance, retreat switch, 2, walking pump controller, 3, neutral switch, 4, relay, 5, seating pressure opens
Close, 6, time-delay relay, 7, neutral indicatorlamp.
Embodiment
The present invention is further described with reference to specific embodiment.
As shown in figure 1, protecting system for a kind of Telescopic handler shelves that come to nothing automatically, a kind of Telescopic handler takes off automatically
Neutral gear protects system, it is characterised in that：Including advancing, retreating switch 1, walking pump controller 2, neutral switch 3, relay 4, seat
Chair pressure switch 5, time-delay relay 6, neutral indicatorlamp 7；Handle is connected with walking pump controller 2, neutral switch 3 and relay
4 series connection, seating pressure switch 5 and time-delay relay 6 are connected, and time-delay relay is delayed five seconds and powered off；
Walking pump controller 2 has an Enable Pin, and the Enable Pin high level of pump controller 2 of walking is effective：When Enable Pin is
During high level, advance or backing signal is just effective, i.e., vehicle just can advance or retreat；When Enable Pin is low level,
Advance or backing signal is invalid；It is high level or low level to realize to gear by controlling walking pump controller Enable Pin
Control.
Relay 4 and the contact series of time-delay relay 6 are connected to the walking Enable Pin of pump controller 2, when relay 4 and traveling pump
When the Enable Pin of controller 2 disconnects, Enable Pin is low level；When time-delay relay 6 is connected with the walking Enable Pin of pump controller 2,
Enable Pin is high level；
Seating pressure switch 5, when driver sits on the seat, seating pressure switch closure；When driver leaves seat
When, seating pressure switches off；
Time-delay relay 6, when coil obtains it is electric when, contact closes at once.When coil losing electricity, contact is disconnected after being delayed 5 seconds
Open.Time-delay relay is delayed 5 seconds and powered off.Seating pressure switch 5 does not have pressure, and time-delay relay 6 powers off after 5 seconds, and machine is forbidden
Front and rear and backward movement, neutral indicatorlamp are bright.
Walking pump controller 2, has an Enable Pin.It is automatically reset to advance, retreat switch 1.Relay 4 and delay
The contact series of relay 6 are connected to the walking Enable Pin of pump controller 2.
Time-delay relay 6, when coil obtains it is electric when, contact closes at once.When coil losing electricity, contact is disconnected after being delayed 5 seconds
Open.
The operation principle of the present invention is as follows：When normal vehicle operation, driver sits on the seat, seating pressure switch 5
Closure, the coil of time-delay relay 6 obtain electric, its contact closure.Neutral switch 3 is plucked to disconnect, plucking neutral gear relay coil must not be electric, its
Contact closure.Now, the enable signal of walking pump controller 2 is high level.When pushing away advance forward, retreating switch 1, traveling pump
The advance port of controller 2 is high level, and now controller 2 records forward travel state, and handle returns centre position, and vehicle advances.
When advancing toward pusher, retreating switch 1, the retrogressing port of walking pump controller 2 is high level, and now the record of controller 2 retreats
State, handle return centre position, vehicle rollback.When advancing, retreating switch 1 by advancing, retreating switching, pump controller 2 of walking
Automatically the state recorded before is removed, records newest walking states.
When driver leaves seat, seating pressure switch 5 disconnects, the coil losing electricity of time-delay relay 6, after 5 seconds,
Its contact disconnects, and the enable signal of walking pump controller 2 is changed into low level, the advance or retrogressing that walking pump controller 2 records
Signal Fail, vehicle can not be moved on or retreated, and pluck the function of neutral gear with this to realize, neutral indicatorlamp 7 is bright.Driver
Again after sitting on car, now advance, retreat switch 1 in centre position, in neutral state, stationary vehicle.
When driver, which presses, plucks neutral switch 3, it can also realize and pluck neutral gear.
Described above is only the preferred embodiment of the present invention, it should be pointed out that：For the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
1. a kind of Telescopic handler comes to nothing automatically, shelves protect system, it is characterised in that：Including advancing, retreating switch, traveling pump
Controller, neutral switch, relay, seating pressure switch and time-delay relay；Handle is connected with walking pump controller, and neutral gear is opened
Close and relay series connection, seating pressure switch and time-delay relay series connection；
The walking pump controller has an Enable Pin, and pump controller Enable Pin high level of walking is effective；
Relay and time-delay relay contact series be connected to walking pump controller Enable Pin, when neutral switch close, relay with
When pump controller Enable Pin of walking disconnects, Enable Pin is low level；Closed when seating pressure switchs, time-delay relay and traveling pump
When controller Enable Pin is connected, Enable Pin is high level；
Seating pressure switchs, when driver sits on the seat, seating pressure switch closure；When driver leaves seat, seat
Chair pressure switch disconnects；
Time-delay relay, when seating pressure, which switchs, to be closed, coil obtains electric, and contact closes at once；When seating pressure switches off,
Coil losing electricity, contact disconnect after delay a period of time；
The advance, retrogressing switch are connected with walking pump controller, can automatically reset；
The walking pump controller, when Enable Pin is high level, advances or backing signal is just effective, i.e., vehicle just can be former
Enter or retreat；When Enable Pin is low level, advances or backing signal is invalid；By controlling pump controller Enable Pin of walking
The control to gear is realized for high level or low level.
2. Telescopic handler according to claim 1 comes to nothing automatically, shelves protect system, it is characterised in that：It is described delay after
Electrical equipment is delayed five seconds and powered off.
3. Telescopic handler according to claim 1 comes to nothing automatically, shelves protect system, it is characterised in that：Also include neutral gear
Indicator lamp, the neutral indicatorlamp are connected with walking pump controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610154979.7A CN105692517B (en) | 2016-03-18 | 2016-03-18 | A kind of Telescopic handler come to nothing automatically shelves protection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610154979.7A CN105692517B (en) | 2016-03-18 | 2016-03-18 | A kind of Telescopic handler come to nothing automatically shelves protection system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105692517A CN105692517A (en) | 2016-06-22 |
| CN105692517B true CN105692517B (en) | 2018-01-19 |
Family
ID=56231309
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610154979.7A Active CN105692517B (en) | 2016-03-18 | 2016-03-18 | A kind of Telescopic handler come to nothing automatically shelves protection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105692517B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2758257A1 (en) * | 1977-12-27 | 1979-07-05 | Kloeckner Humboldt Deutz Ag | Starter motor isolator for tractor - has switch incorporated in driver's seat to prevent motor operation when seat is vacant |
| CN1572711A (en) * | 2003-05-29 | 2005-02-02 | 三菱重工业株式会社 | Control system of self propelled industrial machine |
| CN101229808A (en) * | 2007-01-26 | 2008-07-30 | 株式会社丰田自动织机 | Travel control apparatus for industrial vehicle |
| CN205556022U (en) * | 2016-03-18 | 2016-09-07 | 徐州徐工特种工程机械有限公司 | Automatic grade protection system that comes to nothing of flexible arm fork installation |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5907525B2 (en) * | 2012-03-06 | 2016-04-26 | ユニキャリア株式会社 | Industrial vehicle safety device |
-
2016
- 2016-03-18 CN CN201610154979.7A patent/CN105692517B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2758257A1 (en) * | 1977-12-27 | 1979-07-05 | Kloeckner Humboldt Deutz Ag | Starter motor isolator for tractor - has switch incorporated in driver's seat to prevent motor operation when seat is vacant |
| CN1572711A (en) * | 2003-05-29 | 2005-02-02 | 三菱重工业株式会社 | Control system of self propelled industrial machine |
| CN101229808A (en) * | 2007-01-26 | 2008-07-30 | 株式会社丰田自动织机 | Travel control apparatus for industrial vehicle |
| CN205556022U (en) * | 2016-03-18 | 2016-09-07 | 徐州徐工特种工程机械有限公司 | Automatic grade protection system that comes to nothing of flexible arm fork installation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105692517A (en) | 2016-06-22 |
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