CN203331867U - Voluntary speed reduction device for forklift - Google Patents
Voluntary speed reduction device for forklift Download PDFInfo
- Publication number
- CN203331867U CN203331867U CN2013204108393U CN201320410839U CN203331867U CN 203331867 U CN203331867 U CN 203331867U CN 2013204108393 U CN2013204108393 U CN 2013204108393U CN 201320410839 U CN201320410839 U CN 201320410839U CN 203331867 U CN203331867 U CN 203331867U
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- China
- Prior art keywords
- turning
- forklift
- speed limit
- approach switch
- fork truck
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- 230000002747 voluntary effect Effects 0.000 title abstract 5
- 238000006073 displacement reaction Methods 0.000 claims abstract description 10
- 230000006698 induction Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000979 retarding effect Effects 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/72—Electric energy management in electromobility
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- Forklifts And Lifting Vehicles (AREA)
Abstract
The utility model provides a voluntary speed reduction device for a forklift so as to solve the problem that an existing forklift turns over easily when travelling at a high speed and making a sharp turn. The voluntary speed reduction device for the forklift comprises a turning speed-limiting sensing support, a turning speed-limiting installing support, a proximity switch and a driving controller, wherein the turning speed-limiting sensing support is installed on a turning oil cylinder piston rod of the forklift; the turning speed-limiting installing support is installed on a turning axle body riser of the forklift; when the forklift travels normally, no relative displacement exists between the turning oil cylinder piston rod and the turning axle body riser, the turning speed-limiting sensing support is always located within a sensing range of the proximity switch, and the driving controller does not send a speed reduction instruction to a forklift motor; otherwise, the driving controller sends the speed reduction instruction to the forklift motor. The voluntary speed reduction device for the forklift has the advantages of being able to decelerating the forklift in time when the forklift travels a high speed and makes a sharp turn, thereby preventing the forklift from turning over; the voluntary speed reduction device for the forklift is simple in structure, relatively low in cost, and capable of adjusting turning speed-limiting angles as needed.
Description
Technical field
The utility model belongs to technical field of vehicle manufacture, is specifically related to the active speed reduction gearing for fork truck.
Background technology
Due to fork truck, do not possess at present the function of turning speed limit, when fork truck travels with very high speed, when running into accident and needing sharply turning, because chaufeur has little time to carry out deceleration-operation, be easy to cause the overturning phenomenon.Particularly, when the fork truck load-carrying thing, if do not turned speed limit, more easily cause overturning, therefore more needing to slow down prevents from turning on one's side.For this reason, need on the market a kind ofly can initiatively limit the speed of vehicle at Ackermann steer angle, avoid the device of tumbling.
The utility model content
For existing fork truck, when running at high speed middle sharply turning, easily owing to having little time to be slowed down, cause the difficult problem of overturning phenomenon, the utility model that a kind of speed reduction gearing of the active for fork truck is provided, its concrete structure is as follows:
Active speed reduction gearing for fork truck, be comprised of turning speed limit sensing support 1, turning speed limit mounting bracket 2, approach switch 3 and driving governor 4; Wherein, turning speed limit sensing support 1 is placed on the steering cylinder piston rod 5 of fork truck; Turning speed limit mounting bracket 2 is arranged on turning on pontic riser 6 of fork truck, and adjacent with steering cylinder piston rod 5; Approach switch 3 is arranged on turning speed limit mounting bracket 2, and the induction end of approach switch 3 and turning speed limit sensing support 1 are close; The signal output part of approach switch 3 is connected with driving governor 4;
When normal vehicle operation, steering cylinder piston rod 5 and turning between pontic riser 6 without relative displacement, turning speed limit sensing support 1 is all the time within the induction range in approach switch 3, approach switch 3 detects the state in high level after turning speed limit sensing support 1, and this high level signal is passed to driving governor 4; Driving governor 4 does not send deceleration instruction to the fork truck motor under the driving of high level signal;
When vehicle is turned, steering cylinder piston rod 5 and turn between pontic riser 6 relative displacement occurs, the larger relative displacement of corner is just larger; When if the turn inside diameter angle meets or exceeds critical angle α, turning speed limit sensing support 1 is displaced to zone outside the induction range of approach switch 3, turn speed limit sensing support 1 and approach switch 3 in approaching the state disconnected, approach switch 3 is in low level state, and this low level signal is passed to driving governor 4; Driving governor 4 sends deceleration instruction to the fork truck motor under the driving of low level signal.
useful technique effect
1, this product can be when fork truck be run at high speed middle sharply turning, thereby slowed down in time, avoids overturning the generation of phenomenon;
2, after the turn inside diameter angle is greater than critical angle α, this product carries out reduction of speed to fork truck automatically, reduces the centnifugal force of turning, and effectively overcomes while turning and overturns, and avoids normally travelling or automatic retarding during large radius turn, extends the maintenance intervals of fork truck;
3, this product structure is simple, cost is lower, and turning speed limit angle can be adjusted as required.
The accompanying drawing explanation
Fig. 1 is the constitution diagram of this product when fork truck is kept straight on.
Fig. 2 is the constitution diagram of this product when fork-truck steering.
Fig. 3 is the schematic block circuit diagram of this product.
Sequence number in figure is: turning speed limit sensing support 1, turning speed limit mounting bracket 2, approach switch 3, driving governor 4, steering cylinder piston rod 5, turn to pontic riser 6.
concrete embodiment
Now be described with reference to the accompanying drawings constructional feature of the present utility model.
Referring to Fig. 1, for the active speed reduction gearing of fork truck, by turning speed limit sensing support 1, turning speed limit mounting bracket 2, approach switch 3 and driving governor 4, formed; Wherein, turning speed limit sensing support 1 is placed on the steering cylinder piston rod 5 of fork truck; Turning speed limit mounting bracket 2 is arranged on turning on pontic riser 6 of fork truck, and adjacent with steering cylinder piston rod 5; Approach switch 3 is arranged on turning speed limit mounting bracket 2, and the induction end of approach switch 3 and turning speed limit sensing support 1 are close; The signal output part of approach switch 3 is connected with driving governor 4;
When normal vehicle operation, steering cylinder piston rod 5 and turning between pontic riser 6 without relative displacement, turning speed limit sensing support 1 is all the time within the induction range in approach switch 3, approach switch 3 detects the state in high level after turning speed limit sensing support 1, and this high level signal is passed to driving governor 4; Driving governor 4 does not send deceleration instruction to the fork truck motor under the driving of high level signal;
Referring to Fig. 2, when vehicle is turned, steering cylinder piston rod 5 and turn between pontic riser 6 relative displacement occurs, the larger relative displacement of corner is just larger; When if the turn inside diameter angle meets or exceeds critical angle α, turning speed limit sensing support 1 is displaced to zone outside the induction range of approach switch 3, the speed limit sensing support 1 of turning with approach switch 3 in approaching the state disconnected; Now, approach switch 3 is in low level state, and this low level signal is passed to driving governor 4; Driving governor 4 sends deceleration instruction to the fork truck motor under the driving of low level signal.
In addition, the critical angle α of fork truck reduction of speed is 13 to 16 °, after the corner of fork truck is greater than critical angle α, turning speed limit sensing support 1 is offset to the position outside the induction range of approach switch 3, driving governor 4 sends deceleration instruction to the fork truck motor after receiving the low level signal transmitted from approach switch 3.
In addition, the model of approach switch 3 is CRM8-10PB; The model of driving governor 4 is COMBIAC2 Power 500+500.Concrete circuit connecting relation is shown in Fig. 3.Wherein, the power end VCC of approach switch 3 is connected with the PPOT mouth of driving governor 4, and the signal output part POT of approach switch 3 is connected with the CPOT mouth of driving governor 4, and the power supply ground end GND of approach switch 3 is connected with the NPOT mouth of driving governor 4.12 volts of output port V12, grounding ports GND on driving governor 4, the first phase place detection port PHA, the second phase place detection port PHB install outside fork truck motor with this respectively and are connected, after obtaining the next signal of approach switch 3 transmission, the running state of control fork vehicle motor.
Claims (2)
1. for the active speed reduction gearing of fork truck, it is characterized in that, formed by turning speed limit sensing support (1), turning speed limit mounting bracket (2), approach switch (3) and driving governor (4); Wherein, turning speed limit sensing support (1) is placed on the steering cylinder piston rod (5) of fork truck; Turning speed limit mounting bracket (2) is arranged on turning on pontic riser (6) of fork truck, and adjacent with steering cylinder piston rod (5); It is upper that approach switch (3) is arranged on turning speed limit mounting bracket (2), and the induction end of approach switch (3) and turning speed limit sensing support (1) are close; The signal output part of approach switch (3) is connected with driving governor (4);
When normal vehicle operation, steering cylinder piston rod (5) and turning between pontic riser (6) without relative displacement, turning speed limit sensing support (1) is all the time within the induction range in approach switch (3); Approach switch (3) detects the state in high level after turning speed limit sensing support (1), and this high level signal is passed to driving governor (4); Driving governor (4) does not send deceleration instruction to the fork truck motor under the driving of high level signal;
When vehicle is turned, steering cylinder piston rod (5) and turn between pontic riser (6) relative displacement occurs, the larger relative displacement of corner is just larger; When if the turn inside diameter angle meets or exceeds critical angle α, turning speed limit sensing support (1) is displaced to zone outside the induction range of approach switch (3), turn speed limit sensing support (1) and approach switch (3) in approaching the state disconnected, approach switch (3) is in low level state, and this low level signal is passed to driving governor (4); Driving governor (4) sends deceleration instruction to the fork truck motor under the driving of low level signal.
2. the speed reduction gearing of the active for fork truck as claimed in claim 1, is characterized in that, the critical angle α of fork truck reduction of speed is 13 to 16 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204108393U CN203331867U (en) | 2013-07-11 | 2013-07-11 | Voluntary speed reduction device for forklift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204108393U CN203331867U (en) | 2013-07-11 | 2013-07-11 | Voluntary speed reduction device for forklift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203331867U true CN203331867U (en) | 2013-12-11 |
Family
ID=49700564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204108393U Expired - Fee Related CN203331867U (en) | 2013-07-11 | 2013-07-11 | Voluntary speed reduction device for forklift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203331867U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539579A (en) * | 2016-01-13 | 2016-05-04 | 徐州重型机械有限公司 | Steering protection device and method and lifting type hoisting equipment |
-
2013
- 2013-07-11 CN CN2013204108393U patent/CN203331867U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105539579A (en) * | 2016-01-13 | 2016-05-04 | 徐州重型机械有限公司 | Steering protection device and method and lifting type hoisting equipment |
| CN105539579B (en) * | 2016-01-13 | 2018-02-16 | 徐州重型机械有限公司 | Turn to protection device and method and lifting class crane gear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131211 |
|
| CU01 | Correction of utility model | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 28, 2023, the expiration and termination of the 39-volume 3002 patent Number: 30-02 Volume: 39 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 |