CN105539579B - Turn to protection device and method and lifting class crane gear - Google Patents
Turn to protection device and method and lifting class crane gear Download PDFInfo
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- CN105539579B CN105539579B CN201610020672.8A CN201610020672A CN105539579B CN 105539579 B CN105539579 B CN 105539579B CN 201610020672 A CN201610020672 A CN 201610020672A CN 105539579 B CN105539579 B CN 105539579B
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- proximity switch
- detection
- test section
- steering
- detection plate
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/06—Power-assisted or power-driven steering fluid, i.e. using a pressurised fluid for most or all the force required for steering a vehicle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D15/00—Steering not otherwise provided for
- B62D15/02—Steering position indicators ; Steering position determination; Steering aids
- B62D15/021—Determination of steering angle
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The invention discloses one kind to turn to protection device and method and lifting class crane gear, is related to engineering machinery field.Steering protection device therein includes：Detection plate；Fixing device；And proximity switch；Wherein, detection plate is fixed on the lever of steering cylinder, and proximity switch is vertically disposed in detection plate and installed on the securing means, to realize that wheel steering detects.It is achieved thereby that a kind of new wheel steering detection scheme, and reduce testing cost.
Description
Technical field
The present invention relates to engineering machinery field, more particularly to a kind of steering protection device and method and lifting class rise and reseted
It is standby.
Background technology
Class crane gear, especially empty container piling crane are lifted, applied to port and pier, its special portal-framed structure
Container can be risen and rise to more than ten meters, thus it is higher to its stability requirement, and because it is often in high-frequency operation shape
State, maloperation is also easy to produce, so overthrow accident often occurs in use.General empty container stacking machine is advised in its safety operation
Required in journey：Vehicle avoids killing direction when turning to, i.e., oil cylinder is fought to the finish, can so damage steering mechanism；During traveling, hang
Tool or container necessarily be in very lower position, and must keep stabilizing speed, avoid running at high speed and take a sudden turn.
Prior art setting angle sensor generally in vehicle bridge, to detect wheel steering angle.The corner of group wheel before general
By driver by manipulating steering wheel control, the corner corner size of a certain wheel of group and driving before of each wheel is organized afterwards
The steering pattern of member's selection exports different electric signals by the program set in controller, and then controls electro-hydraulic proportional valve
The flow of aperture, hydraulic oil, make steering cylinder be intended to promote vehicle wheel rotation according to the operation of driver, realize multi-mode steering work(
Can, its control flow is not as shown in figure 1, when wheel steering angle enters horizontal deflection by setup program, system alarm.
However, it is higher using angular transducer progress angle testing cost, it is unfavorable for being promoted on vehicle.
The content of the invention
A technical problem to be solved by this invention is：A kind of new wheel steering detection scheme is proposed, reduces inspection
Survey cost.
One side according to embodiments of the present invention, there is provided one kind turns to protection device, including：Detection plate 1；Fixed dress
Put 2；And proximity switch 3；Wherein, detection plate 1 is fixed on the lever of steering cylinder, and proximity switch 3 is vertically disposed in detection
On plate 1 and in fixing device 2, to realize that wheel steering detects.
In one embodiment, detection plate 1 is provided with the first test section 11, and proximity switch 3 includes the first proximity switch 31,
First proximity switch 31 is vertically disposed on the first test section 11, and the length of the first test section 11 is according to the limit row of steering cylinder
Journey is set.
In one embodiment, in addition to：Steering angle limits device, electrically connected with the first proximity switch 31.
In one embodiment, detection plate 1 is provided with the second test section 12, and proximity switch 3 includes the second proximity switch 32,
Second proximity switch 32 is vertically disposed on the second test section 12, and some breakthrough portions 121 are provided with the second test section 12, are respectively worn
The length of spacer portion 122 between saturating portion 121 is set according to stroke of the steering cylinder when turning to predetermined angle.
In one embodiment, in addition to：Turning velocity limits device, electrically connected with the second proximity switch 32.
In one embodiment, fixing device 2 is fixed on the cylinder barrel of steering cylinder；Or fixing device 2 is fixed on car
On bridge.
In one embodiment, in addition to：Warning device, electrically connected with proximity switch 3.
Other side according to embodiments of the present invention, there is provided one kind lifting class crane gear, including above-mentioned wheel
Turn to detection means.
Another aspect according to embodiments of the present invention, there is provided one kind turns to guard method, including：Turned by being fixed on
The motion of steering cylinder is detected to the detection plate 1 on the lever 4 of oil cylinder；Detection plate 1 is detected by the proximity switch 3 of fixed setting
Motion conditions, with realize wheel steering detect.
In one embodiment, detection plate 1 is provided with the first test section 11, and proximity switch 3 includes the first proximity switch 31,
The proximity switch 3 by fixed setting detects the motion conditions of detection plate 1, to realize that turning to detection includes：First is close
31 pair of first test section 11 of switch is detected, and different inspections is sent when detecting and being not detected by the first test section 11
Signal is surveyed, so as to realize the detection of ultimate angle；Wherein, the length of the first test section 11 is set according to the limit travel of steering cylinder
Put.
In one embodiment, in addition to：If the first proximity switch 31 sends the inspection for being not detected by the first test section 11
Signal is surveyed, sends alarm, to warn corner excessive, and/or, limitation increase steering angle.
In one embodiment, detection plate 1 is provided with the second test section 12, and proximity switch 3 includes the second proximity switch 32,
The proximity switch 3 by fixed setting detects the motion conditions of detection plate 1, to realize that turning to detection includes：Second is close
32 pair of second test section 12 of switch detects, and sends difference when detecting breakthrough portion 121 and detecting spacer portion 122
Detection signal, the detection of turning velocity is realized according to the interval time between two adjacent different detection signals；Wherein,
It is provided with some breakthrough portions 121 on two test sections 12, the length of the spacer portion 122 between each breakthrough portion 121 is according to steering cylinder
Stroke when turning to predetermined angle is set.
In one embodiment, in addition to：According to the interval time between two adjacent different detection signals with
And default time threshold determines whether turning velocity is suitable；Or according between two adjacent different detection signals
Interval time, default time threshold and current vehicle speed determine whether turning velocity suitable.
In one embodiment, in addition to：If it is determined that turning velocity is too fast, alarm is sent, to warn turning velocity mistake
It hurry up, and/or, limitation increase turning velocity.
The present invention at least has advantages below：
The detection plate being fixed on the lever of steering cylinder is detected by proximity switch, it is achieved thereby that a kind of new
The wheel steering detection scheme of type, and reduce testing cost.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 shows schematic flow sheet of the prior art using angular transducer control wheel steering angle.
Fig. 2A is the schematic diagram of the first implementation of wheel steering detection means of the present invention.
Fig. 2 B are the scheme of installations of the wheel steering detection means shown in Fig. 2A.
Fig. 3 A are the schematic diagrames of second of implementation of wheel steering detection means of the present invention.
Fig. 3 B are the scheme of installations of the wheel steering detection means shown in Fig. 3 A.
Fig. 4 is the detection corresponding relation schematic diagram of detection plate 1 of the present invention and proximity switch 3.
Fig. 5 is the structural representation of each several part of detection plate 1 of the present invention.
Fig. 6 is the inspection policies schematic diagram of wheel steering speed of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.Below
Description only actually at least one exemplary embodiment is illustrative, is never used as to the present invention and its application or makes
Any restrictions.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, belongs to the scope of protection of the invention.
The present invention proposes a kind of new wheel steering detection means.Fig. 2A is the first of wheel steering detection means
The schematic diagram of implementation.Fig. 2 B are the scheme of installations of the wheel steering detection means shown in Fig. 2A.Fig. 3 A are wheel steerings
The schematic diagram of second of implementation of detection means.Fig. 3 B are the installation signals of the wheel steering detection means shown in Fig. 3 A
Figure.As shown in Fig. 2A, Fig. 2 B, Fig. 3 A, Fig. 3 B, wheel steering detection means 10 includes：Detection plate 1, fixing device 2, Yi Jijie
Nearly switch 3.Detection plate 1 is fixed on the lever 4 of steering cylinder, is moved with the motion of steering cylinder.Proximity switch 3 is vertically put
Put in detection plate 1 and in fixing device 2, to realize that wheel steering detects.By the lever for being fixed on steering cylinder
Detection plate 1 on 4 detects the motion of steering cylinder；The motion conditions of detection plate 1 are detected by the proximity switch 3 of fixed setting,
To realize that wheel steering detects.Wherein, Fig. 2A and Fig. 2 B are illustrated that fixing device 2 is fixed on the cylinder barrel 5 of steering cylinder.Figure
3A and Fig. 3 B are illustrated that fixing device 2 is fixed in vehicle bridge 6.
Fig. 4 is the detection corresponding relation schematic diagram of detection plate 1 and proximity switch 3.As shown in figure 4, wherein, detection plate 1 is set
The first test section 11 and the second test section 12 are equipped with, proximity switch 3 includes the first proximity switch 31 and the second proximity switch 32, the
One proximity switch 31 is vertically disposed on the first test section 11, it is possible to achieve the detection of wheel ultimate angle, the second proximity switch
32 are vertically disposed on the second test section 12, it is possible to achieve the detection of turning velocity.It is described separately below.Need what is illustrated
It is that detection plate 1 and proximity switch 3 are the position relationships being disposed vertically, the detection corresponding relation signal of the two is illustrated that in Fig. 4
Figure.
The detection scheme of wheel ultimate angle is described below.
The length of first test section 11 is set according to the limit travel of steering cylinder.Assuming that wheel steering angle is gone to by limit on the left
The stroke of limit on the right-right-hand limit steering cylinder is L ', then takes the length L ＜ L ' of the first test section 11.First proximity switch 31 detects to first
Portion 11 is detected, and different detection signals is sent when detecting and being not detected by the first test section 11, so as to realize
The detection of ultimate angle.When normal angled turns to, the first proximity switch 31 can detect the first test section 11 all the time, therefore locate
In obtaining electricity condition, when steering angle is excessive, because the length L of the first test section 11 is less than oil cylinder stroke L ', proximity switch 31
The covering of the first test section 11 is will be disengaged from, the first test section 11 can not be detected, therefore is in power failure state, sends alarm, with
Warn corner excessive, can also either limit increase steering angle or can also be to governed engine speed.Steering angle limiting example
It can such as be realized by steering angle limits device, the steering angle limits device electrically connects with the first proximity switch 31.
The detection of steering angle can be realized by such scheme, is turned so as to be realized in the case of control cost to big
Angle turns to and is monitored, and extreme position, which builds the pressure, when avoiding turning to causes steering mechanism to damage.
The detection scheme of turning velocity is described below.
It is provided with some breakthrough portions 121 on second test section 12, the length root of the spacer portion 122 between each breakthrough portion 121
Set according to stroke of the steering cylinder when turning to predetermined angle.For example, as shown in figure 5, according to rotating angle movement relation, can obtain in
Position turns the oil cylinder stroke L1 of α angles to side, turns the oil cylinder stroke L2 of 2 α angles, by that analogy, because oil cylinder is double rod oil
Cylinder, thus it is identical to opposite side rotation size.According to every stroke for turning α angle oil cylinders, done in the relevant position of the second test section 12
Breakthrough portion 121, such as a diameter of D circular hole, proximity switch 32 are disposed vertically on the second test section 12, wherein proximity switch 31
Outside can be placed in, for detectable limit corner, proximity switch 32 can be placed in inner side, and its detection zone can just be arranged on a diameter of
In D circular hole, the speed turned to is operated for detecting driver.
During work, the second proximity switch 32 detects to the second test section 12, and is detecting breakthrough portion 121 and inspection
Different detection signals is sent when measuring spacer portion 122, it is real according to the interval time between two adjacent different detection signals
Turn now to the detection of speed.According to the interval time between two adjacent different detection signals and default time threshold
Value determines whether turning velocity is suitable；Or according to interval time between two adjacent different detection signals, default
Time threshold and current vehicle speed determine whether turning velocity suitable.If it is determined that turning velocity is too fast, alarm is sent, with police
Show that turning velocity is too fast, and/or, limitation increase turning velocity.Limit turning velocity for example can limit dress by turning velocity
Realization is put, turning velocity limits device electrically connects with the second proximity switch 32.
For example, as shown in fig. 6, when wheel is in middle position, the detection zone of proximity switch 32 is just arranged on breakthrough portion
121, switch must not be in electricity condition, detection signal P=0；When being turned to, oil cylinder drives detection plate 1 to move, proximity switch
32 detect that spacer portion 122 obtains electric, detection signal P=1, due to sign mutation, triggering timing program, start timing；As steering α
During angle, proximity switch in detection breakthrough portion 121, proximity switch dead electricity, detection signal P=0, now stops timing, obtained again
To timing time t.
Timing time t is compared with setting time t1 and t2：
1) as t ＞ t2, turning velocity is suitable, risk of not tumbling, and turns to safety；
2) as t1 ＜ t ＜ t2, turning velocity is too fast, now inquires about GES, and as speed v ＜ v1, speed is relatively low, is not easy
Tumble, therefore turn to safety, without alarm；As speed v ＞ v1, speed is too fast, and it is too urgent to turn to, and is also easy to produce and tumbles, this Times
It is alert, governed engine speed, and limit and bring to a halt；
3) as t ＜ t1, turning velocity impersonal force can and, be judged as turning to round about, ignore this detection, without
Alarm.
Continue to turn to, then proximity switch will be changed into obtain electricity condition by power failure state, hence into next time-count cycle, no
It is disconnected that turning velocity is monitored.
The inspection of turning velocity is realized according to the interval time between two adjacent different detection signals by such scheme
Survey, so as to realize the monitoring to fast steering in the case of control cost, and the control safeguard measure such as speed limit can be carried out.
Other side according to embodiments of the present invention, there is provided one kind lifting class crane gear, including above-mentioned wheel
Turn to detection means 10.
One of ordinary skill in the art will appreciate that hardware can be passed through by realizing all or part of step of above-described embodiment
To complete, by program the hardware of correlation can also be instructed to complete, described program can be stored in a kind of computer-readable
In storage medium, storage medium mentioned above can be read-only storage, disk or CD etc..
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (12)
1. one kind turns to protection device, it is characterised in that including：
Detection plate (1)；
Fixing device (2)；And
Proximity switch (3)；
Wherein, detection plate (1) is fixed on the lever (4) of steering cylinder, proximity switch (3) is vertically disposed in detection plate (1),
And in fixing device (2), to realize that wheel steering detects；
Wherein, detection plate (1) is provided with the second test section (12), and proximity switch (3) includes the second proximity switch (32), and second connects
Nearly switch (32) is vertically disposed on the second test section (12), some breakthrough portions (121) is provided with the second test section (12), respectively
The length of spacer portion (122) between breakthrough portion (121) is set according to stroke of the steering cylinder when turning to predetermined angle.
2. device as claimed in claim 1, it is characterised in that wherein, detection plate (1) is provided with the first test section (11), connects
Nearly switch (3) includes the first proximity switch (31), and the first proximity switch (31) is vertically disposed on the first test section (11), and first
The length of test section (11) is set according to the limit travel of steering cylinder.
3. device as claimed in claim 2, it is characterised in that also include：Steering angle limits device, with the first proximity switch
(31) electrically connect.
4. device as claimed in claim 1, it is characterised in that also include：Turning velocity limits device, with the second proximity switch
(32) electrically connect.
5. device as claimed in claim 1, it is characterised in that fixing device (2) is fixed on the cylinder barrel of steering cylinder；
Or fixing device (2) is fixed in vehicle bridge.
6. device as claimed in claim 1, it is characterised in that also include：Warning device, electrically connected with proximity switch (3).
7. one kind lifting class crane gear, it is characterised in that including the steering protection device described in claim any one of 1-6.
8. one kind turns to guard method, it is characterised in that including：
The motion of steering cylinder is detected by the detection plate (1) being fixed on the lever (4) of steering cylinder；
The motion conditions of detection plate (1) are detected by the proximity switch (3) of fixed setting, to realize that wheel steering detects；
Wherein, detection plate (1) is provided with the second test section (12), and proximity switch (3) includes the second proximity switch (32),
The motion conditions of proximity switch (3) the detection detection plate (1) by fixed setting, to realize that turning to detection includes：
Second proximity switch (32) detects to the second test section (12), and is detecting breakthrough portion (121) and detecting
Different detection signals is sent during spacer portion (122), is realized according to the interval time between two adjacent different detection signals
The detection of turning velocity；
Wherein, some breakthrough portions (121) are provided with the second test section (12), the spacer portion (122) between each breakthrough portion (121)
Length set according to stroke of the steering cylinder when turning to predetermined angle.
9. method as claimed in claim 8, it is characterised in that wherein, detection plate (1) is provided with the first test section (11), connects
Nearly switch (3) includes the first proximity switch (31),
The motion conditions of proximity switch (3) the detection detection plate (1) by fixed setting, to realize that turning to detection includes：
First proximity switch (31) detects to the first test section (11), and is detecting and be not detected by the first test section
(11) different detection signals is sent when, so as to realize the detection of ultimate angle；
Wherein, the length of the first test section (11) is set according to the limit travel of steering cylinder.
10. method as claimed in claim 9, it is characterised in that also include：
If the first proximity switch (31) sends the detection signal for being not detected by the first test section (11), alarm is sent, with warning
Corner is excessive, and/or, limitation increase steering angle.
11. method as claimed in claim 8, it is characterised in that also include：
Determine to turn to speed according to the interval time between two adjacent different detection signals and default time threshold
Whether degree is suitable；
Or according to the interval time between two adjacent different detection signals, default time threshold and current
Speed determines whether turning velocity is suitable.
12. method as claimed in claim 8, it is characterised in that also include：
If it is determined that turning velocity is too fast, alarm is sent, to warn turning velocity too fast, and/or, limitation increase turning velocity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020672.8A CN105539579B (en) | 2016-01-13 | 2016-01-13 | Turn to protection device and method and lifting class crane gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610020672.8A CN105539579B (en) | 2016-01-13 | 2016-01-13 | Turn to protection device and method and lifting class crane gear |
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| Publication Number | Publication Date |
|---|---|
| CN105539579A CN105539579A (en) | 2016-05-04 |
| CN105539579B true CN105539579B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610020672.8A Active CN105539579B (en) | 2016-01-13 | 2016-01-13 | Turn to protection device and method and lifting class crane gear |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108762149B (en) * | 2017-12-15 | 2021-04-16 | 蔚来(安徽)控股有限公司 | Anti-over-loss device, method and equipment for vehicle-mounted intelligent controller |
| CN115447667B (en) * | 2022-09-19 | 2023-07-28 | 江苏徐工工程机械研究院有限公司 | Steering system of backhoe loader and control method |
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| JP2009143431A (en) * | 2007-12-14 | 2009-07-02 | Toyota Motor Corp | Steering device for vehicle |
| CN202624364U (en) * | 2012-07-09 | 2012-12-26 | 中联重科股份有限公司 | Aligning device for steering axle |
| CN203331867U (en) * | 2013-07-11 | 2013-12-11 | 安徽合力股份有限公司 | Voluntary speed reduction device for forklift |
| CN203427873U (en) * | 2013-09-05 | 2014-02-12 | 中联重科股份有限公司 | Steering cylinder for wheel steering and engineering machinery |
| CN203766530U (en) * | 2014-03-24 | 2014-08-13 | 安徽合力股份有限公司 | Forklift steering axle with turning speed limit mechanism |
| CN204567762U (en) * | 2015-03-26 | 2015-08-19 | 烟台海德专用汽车有限公司 | A kind of working truck four-wheel steering system wheel alignment detection device |
| CN205524445U (en) * | 2016-01-13 | 2016-08-31 | 徐州重型机械有限公司 | Turn to protection device and type of lifting hoisting equipment |
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2016
- 2016-01-13 CN CN201610020672.8A patent/CN105539579B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2009143431A (en) * | 2007-12-14 | 2009-07-02 | Toyota Motor Corp | Steering device for vehicle |
| CN202624364U (en) * | 2012-07-09 | 2012-12-26 | 中联重科股份有限公司 | Aligning device for steering axle |
| CN203331867U (en) * | 2013-07-11 | 2013-12-11 | 安徽合力股份有限公司 | Voluntary speed reduction device for forklift |
| CN203427873U (en) * | 2013-09-05 | 2014-02-12 | 中联重科股份有限公司 | Steering cylinder for wheel steering and engineering machinery |
| CN203766530U (en) * | 2014-03-24 | 2014-08-13 | 安徽合力股份有限公司 | Forklift steering axle with turning speed limit mechanism |
| CN204567762U (en) * | 2015-03-26 | 2015-08-19 | 烟台海德专用汽车有限公司 | A kind of working truck four-wheel steering system wheel alignment detection device |
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| Publication number | Publication date |
|---|---|
| CN105539579A (en) | 2016-05-04 |
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