CN108120412A - Gap detection device and mechanical equipment - Google Patents
Gap detection device and mechanical equipment Download PDFInfo
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- CN108120412A CN108120412A CN201810068119.0A CN201810068119A CN108120412A CN 108120412 A CN108120412 A CN 108120412A CN 201810068119 A CN201810068119 A CN 201810068119A CN 108120412 A CN108120412 A CN 108120412A
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- displacement
- supporting leg
- guide rod
- lever
- slideway
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
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- General Physics & Mathematics (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The present invention proposes a kind of gap detection device of supporting leg, including：Displacement guide rod and displacement amplifying mechanism are fixedly connected with the outer wall of supporting leg slideway, and displacement amplifying mechanism is connected with displacement guide rod, and displacement amplifying mechanism is equipped with first level limiting section, with moving horizontally for limiting displacement guide rod；Displacement sensor, for detecting the change in displacement of the output terminal of displacement amplifying mechanism, wherein, the gap variation on the vertical direction between outrigger arm and supporting leg slideway inner wall, displacement sensor is passed to by displacement guide rod and displacement amplifying mechanism, to determine whether there is soft leg.Pass through technical scheme, gap variation of the outrigger arm with supporting leg slideway in the vertical direction is exaggerated, so as to improve the reliability of the gap detection of supporting leg and sensitivity, simultaneously, simplify the structure of gap detection device, weight is alleviated, the width spaces of equipment is also not take up, does not sacrifice equipment span.
Description
Technical field
The present invention relates to mechanical equipment technical field, in particular to the gap detection device and one kind of a kind of supporting leg
Mechanical equipment.
Background technology
In engineering goods (such as elevating fire truck), in order to ensure job safety, it is necessary to detect the support of each supporting leg
The clearance condition of state, i.e. supporting leg and ground, when supporting leg liftoff (soft leg), output alarm signal reminds operating personnel to confirm
Equipment whether safety supports, whether there is overturning risk.Therefore, it is whether liftoff non-with efficiency to job safety how to be appropriately determined supporting leg
It is often important.
The gap detection device of existing supporting leg mainly has two kinds of external and floating cylinder formula, as shown in Figure 1, external
Gap detection device is arranged in the door-plate outside of supporting leg slideway, it is necessary to occupy vehicle width 2a, certainly will sacrifice the amount of lap of supporting leg
Or vehicle span, inferior position are particularly evident when vehicle needs large span；If external gap detection device is arranged in
On the inside of the door-plate of supporting leg slideway, since change in displacement of the outrigger arm in the position is small, the precision of displacement sensor is often not achieved
Scope can not detect or testing result is inaccurate.As shown in Fig. 2, floating cylinder formula utilizes the gravity of oil cylinder, work as branch
When leg is from holding state to liftoff state, toward falling, soft leg signal is sent by change in displacement under the effect of gravity for oil cylinder, bad
Gesture is that excessively heaviness is, it is necessary to which additional cylinder sleeve is oriented to oil cylinder to structure, and compared to other structures, wall scroll supporting leg needs to increase
The weight of 4 × 150KG or so.
The content of the invention
It is contemplated that at least solve one of technical problem present in the prior art or correlation technique.
In view of this, it is an object of the invention to provide a kind of gap detection devices of supporting leg.
It is another object of the present invention to provide a kind of mechanical equipments.
To achieve these goals, the technical solution of first aspect present invention provides a kind of gap detection dress of supporting leg
It puts, supporting leg includes supporting leg slideway and the outrigger arm being arranged in supporting leg slideway, including：Displacement guide rod, telescopically arranged on supporting leg
On slideway, the first end of displacement guide rod is slided with outrigger arm or is rollably engaged；Displacement amplifying mechanism, arranged on supporting leg slideway
Outer wall on, displacement amplifying mechanism is connected with the second end of displacement guide rod, for the displacement of displacement enlargement guide rod；Displacement sensing
Device, for detecting the change in displacement of the output terminal of displacement amplifying mechanism.
In the technical scheme, by the way that displacement guide rod to be telescopically arranged on to the outer wall of supporting leg slideway, and displacement guide rod
First end and outrigger arm are slided or are rollably engaged, make outrigger arm along supporting leg slideway slide when, displacement guide rod can be kept
In the original location, do not move with the slip of outrigger arm or only a small amount of movement, meanwhile, when outrigger arm slides, outer surface
If there is upper and lower displacement, then its upper and lower displacement variation can pass through the upper and lower flexible and realization outwards transmission of displacement guide rod.Tool
For body, when outrigger arm occurs mobile, since displacement guide rod is slided with outrigger arm or is rollably engaged, transporting outrigger arm
When dynamic, horizontal movement makes it generate laterally opposed sliding with displacement guide rod or laterally roll, without drive displacement guide rod into
Row transverse shifting, but the movement of vertical direction then can drive displacement guide rod to move up and down, thus will by displacement guide rod
Outrigger arm and supporting leg slideway change in the gap of vertical direction outwards to be transferred and goes out, and improve outrigger arm vertical displacement transmission can
By property；More specifically, outrigger arm is just stretching out supporting leg slideway, when supporting leg is also not in contact with ground, is affected by gravity, under outrigger arm
It hangs down, it is larger so as to the gap of outrigger arm and supporting leg slideway inner wall, at this point, displacement guide rod is also under the effect of gravity or outrigger arm
Under traction, move down；When supporting leg starts contact ground and starts support equipment, supporting leg is lifted power be subject to ground, passes to
Outrigger arm is lifted up outrigger arm, and so as to which the gap between outrigger arm and supporting leg slideway inner wall becomes smaller, and displacement guide rod is because of branch
Leg arm is lifted up and moves up or stretch out upwards therewith, so as to change in the gap between outrigger arm and supporting leg slideway to unofficial biography
It passs.
By setting displacement amplifying mechanism in gap detection device, and arranged on the outer wall of supporting leg slideway, put the displacement
Great institutions are not take up the inner space of equipment, simplify device structure, save space；Displacement amplifying mechanism and displacement guide rod
Second end is connected, and makes the variation of the gap between outrigger arm that displacement guide rod is passed out and supporting leg slideway inner wall that can pass to position
Enlarger is moved, and passes through displacement amplifying mechanism and is amplified, more sensitively to be detected, improves the gap detection of supporting leg
Reliability.
By setting displacement sensor, change the gap between outrigger arm and supporting leg slideway inner wall, put by displacement
Great institutions amplification after, rapidly and accurately can detect to obtain by displacement sensor, so that it is determined that between supporting leg and ground whether
There is gap, in other words with the presence or absence of soft leg, improve the reliability of gap detection and the promptness of detection, reduce because soft leg is led
The danger that equipment is caused to tumble improves the security of equipment.
Further, displacement guide rod is arranged on the inside of the door-plate of supporting leg slideway, and vertically through supporting leg slideway
Outer wall, the first end of displacement guide rod are arranged on the upper surface of outrigger arm；Displacement amplifying mechanism includes：First level limiting section, is used for
The horizontal displacement of limiting displacement guide rod.
Further, further include：Shield is covered at outside displacement guide rod, displacement amplifying mechanism and displacement sensor, shield with
The outer wall of supporting leg slideway is fixedly connected.
In any of the above-described technical solution, optionally, displacement amplifying mechanism is lever construction, and lever construction includes：Lever,
The first end of lever is connected with the second end of displacement guide rod, the output terminal or thick stick of the second end connection displacement amplifying mechanism of lever
The second end of bar is the output terminal of displacement amplifying mechanism；Be provided with articulated section on lever, the first end of lever to articulated section away from
From, less than lever second end to articulated section distance.
Further, lever construction further includes：Stent is fixedly connected with the outer wall of supporting leg slideway；Lever passes through articulated section
It is hinged with stent, is set on stent and be equipped with first level limiting section, displacement guide rod is slidably matched with first level limiting section.
Further, lever construction further includes：Guide rod is exported, one end is connected by articulated structure with the second end of lever,
The other end is movable end；Second Horizontal limiting portion, is arranged on stent, for limiting moving horizontally for output guide rod；First sense
Plate is answered, guide rod is vertical is fixedly connected with output, is moved up and down with output guide rod；Displacement sensor, arranged on the first tablet
Above or below, to detect the distance with the first tablet.
In the above-mentioned technical solutions, optionally, displacement amplifying mechanism is pulley block structure, and pulley block structure includes at least one
A movable pulley.
Further, pulley block structure includes：First movable pulley is articulated with the second end of displacement guide rod；First transmission belt,
One end is fixedly connected with the outer wall of supporting leg slideway, and the first drive belt ring is around on the first movable pulley；Second movable pulley, arranged on first
The lower section of movable pulley, the other end of the first transmission belt are connected with the shaft of the second movable pulley；Second transmission belt, one end and slideway
Outer wall is fixedly connected, and the second drive belt ring is around on the second movable pulley；Fixed pulley, below the second movable pulley, fixed pulley
Shaft is fixed on by pulley bracket on the outer wall of supporting leg slideway；The other end of second transmission belt passes through bullet after fixed pulley
Spring is connected with the top of shield；Second tablet is fixedly connected with the other end of the second transmission belt, with the another of the second transmission belt
End moves up and down；Displacement sensor, above or below the second tablet, to detect the distance with the second tablet.
In the above-mentioned technical solutions, optionally, gap detection device is arranged on the lower surface or upper surface of supporting leg slideway.
The technical solution of second aspect of the present invention provides a kind of mechanical equipment, including in any of the above-described technical solution
Gap detection device.
In the technical scheme, mechanical equipment is by using the gap detection device in any of the above-described technical solution, from
And possess whole advantageous effects of above-mentioned technical proposal, details are not described herein.
The additional aspect and advantage of the present invention will become practice apparent or by the present invention in following description section
Recognize.
Description of the drawings
Fig. 1 shows the schematic diagram of external gap detection device in the prior art；
Fig. 2 shows floating cylinder formula gap detection device schematic diagram in the prior art；
Fig. 3 shows the schematic diagram of according to an embodiment of the invention 1 outrigger arm motion process；
When Fig. 4 shows that according to an embodiment of the invention 1 supporting leg supports in situ, outrigger arm is with supporting leg slideway vertical
The schematic diagram of gap variation on direction；
Fig. 5 shows according to an embodiment of the invention 1 supporting leg when full span supports, and outrigger arm is with supporting leg slideway perpendicular
The schematic diagram of the upward gap variation of Nogata；
Fig. 6 shows the schematic diagram after according to an embodiment of the invention 1 gap detection device installation；
Fig. 7 shows the close-up schematic view after being splitted at the B of Fig. 6；
Fig. 8 shows the principle schematic of 1 lever construction according to an embodiment of the invention；
Fig. 9 shows the exploded perspective view of 1 gap detection device according to an embodiment of the invention；
Figure 10 shows the principle schematic of 3 pulley block structure according to an embodiment of the invention；
Figure 11 shows that according to an embodiment of the invention 3 pulley block structure carries out the schematic diagram of the process of displacement equations.
Wherein, correspondences of the Fig. 1 into Fig. 2 between reference numeral and component names is：
10 gap detection devices, 12 supporting leg slideways, 14 door-plates, 16 oil cylinders；
Wherein, correspondences of the Fig. 3 into Figure 11 between reference numeral and component names is：
20 gap detection devices, 202 displacement guide rods, 204 first level limiting sections, 206 compression springs, 208 stents, 210
Lever, 2102 articulated sections, 212 output guide rods, 214 second Horizontal limiting portions, 216 first tablets, 218 displacement sensors, 240
First movable pulley, 242 first transmission belts, 244 second movable pulleys, 246 second transmission belts, 248 fixed pulleys, 250 second tablets,
252 shields, 30 supporting leg slideways, 302 door-plates, 32 outrigger arms.
Specific embodiment
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where there is no conflict, the implementation of the application
Feature in example and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
To be implemented using other different from other modes described here, therefore, protection scope of the present invention and from described below
Specific embodiment limitation.
Referring to Fig. 3 to Figure 11 descriptions according to some embodiments of the present invention.
As shown in Fig. 3 to Figure 11, gap detection device 20 according to an embodiment of the invention, including：Supporting leg includes
Supporting leg slideway 30 and the outrigger arm 32 being arranged in supporting leg slideway 30, the gap detection device 20 include：Displacement guide rod 202, can
It is telescopically arranged on supporting leg slideway 30, the first end of displacement guide rod 202 is slided with outrigger arm 32 or is rollably engaged；Displacement
Enlarger, on the outer wall of supporting leg slideway 30, displacement amplifying mechanism is connected with the second end of displacement guide rod 202, for putting
The displacement of big displacement guide rod 202；Displacement sensor 218, for detecting the change in displacement of the output terminal of displacement amplifying mechanism.Specifically
Ground, displacement guide rod 202 are arranged at 302 inside of door-plate of supporting leg slideway 30, and vertically run through the outer wall of supporting leg slideway 30,
The first end of displacement guide rod 202 is arranged on the upper surface of outrigger arm 32.As shown in fig. 7, displacement guide rod 202 is vertically arranged at
The outer wall of the supporting leg slideway 30 of engineering truck, the first end of displacement guide rod 202 run through the outer wall of supporting leg slideway 30, and displacement guide rod
After 202 first end runs through supporting leg slideway 30, displacement guide rod 202 passes through roller structure and the outrigger arm in supporting leg slideway 30
32 are connected；Displacement amplifying mechanism is fixedly connected with the outer wall of supporting leg slideway 30, displacement amplifying mechanism and the second of displacement guide rod 202
End is connected, and displacement amplifying mechanism is equipped with first level limiting section 204, with moving horizontally for limiting displacement guide rod 202；Displacement
Sensor 218 is used to detect the change in displacement of the output terminal of displacement amplifying mechanism.As shown in Fig. 5 and Fig. 7, the supporting leg of engineering truck
Gap variation on vertical direction between 30 inner wall of arm 32 and supporting leg slideway, passes through displacement guide rod 202 and displacement amplifying mechanism
Displacement sensor 218 is passed to, so as to send the displacement signal of acquisition to corresponding controller, to determine whether there is
Soft leg, to make a response in time.
In this embodiment, as shown in Figures 6 and 7, by the way that displacement guide rod 202 is vertically arranged at engineering truck
Supporting leg slideway 30 outer wall, the first end of displacement guide rod 202 runs through the outer wall of supporting leg slideway 30, and the of displacement guide rod 202
After supporting leg slideway 30 is run through in one end, displacement guide rod 202 is connected by roller structure with the outrigger arm 32 in supporting leg slideway 30,
Make the gap variation between outrigger arm 32 and supporting leg slideway 30 in the vertical direction that can outwards be transferred by displacement guide rod 202, tool
For body, when outrigger arm 32 occurs mobile, the presence of roller structure makes outrigger arm 32 during exercise, and horizontal movement makes it
Laterally opposed sliding is generated with displacement guide rod 202, without displacement guide rod 202 is driven to carry out transverse shifting, but on vertical direction
Movement then displacement guide rod 202 can be driven to move up and down, so as to by displacement guide rod 202 by outrigger arm 32 and supporting leg slideway
30 gap variation in the vertical direction is outwards transferred and gone out, and improves the reliability of 32 vertical displacement of outrigger arm transmission；More
For body, after Fig. 3 shows that outrigger arm 32 stretches out supporting leg slideway 30, the overall process that is supported to supporting leg, such as Fig. 3 the picture left above institute
Show, outrigger arm 32 is just stretching out supporting leg slideway 30, and when supporting leg is also not in contact with ground, for center of gravity G in slideway, outrigger arm 32 is overhanging
One end upwarp；As shown in Fig. 3 top right plots, when outrigger arm 32 is further overhanging, center of gravity has been stretched out outside supporting leg slideway 30, and
Under self gravitation and supporting leg gravity, the overhanging one end of outrigger arm 32 is sagging, so as to outrigger arm 32 and 30 inner wall of supporting leg slideway
Gap increase, at this point, displacement guide rod 202 moves down also under the effect of gravity or under the traction of outrigger arm 32；Such as Fig. 3
Shown in bottom-right graph, when supporting leg starts contact ground and starts to support vehicle, supporting leg is lifted power be subject to ground, passes to outrigger arm
32, the one end for making outrigger arm 32 overhanging is lifted up, so as to which the gap between 30 inner wall of outrigger arm 32 and supporting leg slideway becomes smaller, and
Displacement guide rod 202 moves up therewith due to outrigger arm 32 is lifted up, so as to will be between outrigger arm 32 and supporting leg slideway 30
Gap variation is outwards transferred and gone out.Displacement guide rod 202 is arranged on vertical direction, can improve it and transfer outrigger arm 32 and supporting leg slideway
The sensitivity of gap variation between 30 in the vertical direction and accuracy.
It is preferably where displacement guide rod 202 as shown in figure 5, it is important to note that gap variation in the present invention
In perpendicular, the gap variation b of contour line and 30 inner wall of supporting leg slideway on outrigger arm 32.It is appreciated that displacement guide rod 202 can
Suitably to tilt.
As shown in fig. 6, by setting displacement amplifying mechanism in gap detection device 20, and with the outer wall of supporting leg slideway 30
It is fixedly connected, the displacement amplifying mechanism is made to be not take up vehicle body space, simplifies body construction, saves space；Displacement equations machine
Structure is connected with the second end of displacement guide rod 202, make outrigger arm 32 and 30 inner wall of supporting leg slideway that displacement guide rod 202 passed out it
Between gap variation b can pass to displacement amplifying mechanism, and pass through displacement amplifying mechanism and be amplified, it is sensitiveer to carry out
Detection, improve the reliability of soft leg detection；First level limiting section 204, limiting displacement are provided on displacement amplifying mechanism
Guide rod 202 moves horizontally, and can strengthen displacement guide rod 202 can only move in the vertical direction, and reduction, which moves horizontally, to be caused to examine
The possibility of the sensitivity decrease of survey.
By setting displacement sensor 218, the gap between 30 inner wall of outrigger arm 32 and supporting leg slideway is made to change b, is being passed through
Cross displacement amplifying mechanism amplification after, outrigger arm 32 in short transverse, or perhaps on vertical direction very little change in displacement, can
It is enough rapidly and accurately to be obtained by the detection of displacement sensor 218, it determines whether there are soft leg, improve soft leg detection can
By property and the promptness of detection, in order to which engineering machinery is made a response in time, reduce because soft leg causes the danger of slide-out,
Improve the security of vehicle.It should be noted that the gap detection device 20 of the present invention, is not limited in vehicle, other tools
The mechanical equipment for having supporting leg to support, can be applicable in technical scheme.
In the above-described embodiments, further, as shown in figure 5, protruding outwardly to extreme position, and supporting leg in outrigger arm 32
When liftoff, the upper contour line of outrigger arm 32 is located at first position；When supporting leg contacts ground and complete load-bearing, the upper wheel of outrigger arm 32
Profile is located at the second position；The crosspoint of upper contour line positioned at first position and the upper contour line positioned at the second position is first
Crosspoint；Supporting leg slideway 30 between the perpendicular A where the first crosspoint and the door-plate 302 of supporting leg slideway 30 it is outer
Wall is variation face in the same direction, wherein, gap detection device 20 is arranged on variation face in the same direction.
It is on 30 outer wall of supporting leg slideway, close to 30 door-plate of supporting leg slideway, 302 inside as shown in figure 5, changing face in the same direction
One section, or perhaps one section of supporting leg slideway outer wall of 302 inside of door-plate,
302 inside of door-plate, refers to door-plate 302 close to the one side of car body.Specifically, in the supporting leg slideway 30 of engineering truck
In, generally equipped with position limiting structure, to limit the protruding long distance of outrigger arm 32, make outrigger arm 32 and supporting leg slideway 30
Overlapping part it is too short, rigidity reduce, cause supporting leg unstability；Or 32 fully extended supporting leg slideway 30 of outrigger arm and make supporting leg with
Car body separates, and loses supporting role completely；Outrigger arm 32 slides in and out to stopping during the position limiting structure along supporting leg slideway 30 and slides,
This position is extreme position, meanwhile, this position is also the full span Support Position of supporting leg.In full span Support Position, supporting leg
It when liftoff hanging, is acted on be subject to supporting leg gravity, one end that outrigger arm 32 is located at outside supporting leg slideway 30 is in sinking state, i.e.,
Outrigger arm 32 is located at one end outside supporting leg slideway 30, is located at one end in supporting leg slideway 30 less than outrigger arm 32, at this point, outrigger arm
32 upper contour line is located at first position, and in the position, upper contour line is outer low and inner high；When supporting leg contacts ground and complete load-bearing
When, supporting leg outrigger arm 32 is generated it is upward lift power, tilt one end that outrigger arm 32 is located at outside supporting leg slideway 30, at this point,
The upper contour line of outrigger arm 32 is located at the second position, and in the position, upper contour line is high outside and low outside；Outer low and inner high upper contour line
First crosspoint is provided with high outside and low outside upper contour line；And in the perpendicular A and door-plate where the first crosspoint
The outer wall of supporting leg slideway 30 between 302 is to change face in the same direction.As shown in figs. 4 and 5, why to change face in the same direction, it is
This section between the first crosspoint and door-plate 302, in outrigger arm 32 without overhanging, when directly carrying out original place support, supporting leg
The change direction in gap between the inner wall of arm 32 and supporting leg slideway 30, it is overhanging to extreme position with outrigger arm 32, carry out full span
During support, the change direction in gap is identical, i.e., is supported since supporting leg is liftoff to supporting leg, profile and supporting leg slideway on outrigger arm 32
Gap variation b between 30 inner wall, is variation from big to small, therefore by the perpendicular and door where the first crosspoint
The outer wall of supporting leg slideway 30 between plate 302 is known as variation face in the same direction.
Gap detection device 20 is arranged on variation face in the same direction, both ensure that the reliability of gap detection, in addition, becoming in the same direction
Change face is located in door-plate 302, compared with the mode being in the prior art mounted on gap detection device 20 outside door-plate 302, does not account for
With vehicle width spaces, vehicle span will not be sacrificed.
Further, as shown in Fig. 7 and Fig. 9, further include：Shield 252 covers at displacement guide rod 202, displacement amplifying mechanism
And outside displacement sensor 218, shield 252 is fixedly connected with the outer wall of supporting leg slideway 30.
Gap detection device 20 is equipped with shield 252, and shield 252 is fixedly connected with the outer wall of supporting leg slideway 30, is conducive to
Portable protective gaps detection device 20 reduces external interference, enables displacement guide rod 202, displacement amplifying mechanism and displacement sensor 218
Good working order is kept, improves the reliability of detection.
As shown in fig. 6, optionally, gap detection device 20 is arranged on the upper surface in variation face in the same direction.
Gap detection device 20 is arranged on the upper surface in variation face in the same direction, is easily installed gap detection device 20, displacement is led
Bar 202 is in contact with 32 upper surface of outrigger arm, easy for installation so as to simple in structure；On the other hand convenient for the inspection of observation gap
The working condition of device 20 is surveyed, also helps the variation of the gap in the vertical direction b of outrigger arm 32 and 30 inner wall of supporting leg slideway
Transmission.
As shown in fig. 7, in any of the above-described embodiment, optionally, displacement amplifying mechanism is lever construction.
It is simple in structure using lever construction as displacement amplifying mechanism, it is light-weight, vehicle body space is also saved, and displacement is put
Big effect is accurate and sensitive, and then can improve the reliability of the gap detection of supporting leg.
As shown in Fig. 7, Fig. 8, Fig. 9, further, lever construction includes：Stent 208, the upper surface with variation face in the same direction
It is fixedly connected；Lever 210 and the articulated section 2102 between the first end of lever and the second end of lever, stent 208 with
Lever 210 is hinged by articulated section 2102, and the second end of displacement guide rod 202 passes through hinged knot with the first end of lever 210
Structure is connected；Wherein, the first end of lever 210 to articulated section 2102 distance, less than lever 210 second end to articulated section 2102
Distance.
Stent 208 is fixed on the upper surface in variation face in the same direction, and stent 208 is firmly fixed, is provided for lever construction
Stable support；Lever 210 is hinged by articulated section 2102 and stent 208, and lever 210 is made to possess the function of lever；
The first end of lever 210 is connected by kidney slot with the second end of displacement guide rod 202 by articulated structure, makes displacement guide rod 202
Move up and down, can synchronously pass to the first end of lever 210, then the of lever 210 is passed to by the first end of lever 210
Two ends, and the first end of lever 210 is to the distance of articulated section 2102, less than lever 210 second end to articulated section 2102 away from
From, make lever 210 first end pass to lever 210 second end displacement, can be amplified by the second end of lever 210, from
And realize the purpose of the gap variation b amplifications by the inner wall of outrigger arm 32 and supporting leg slideway 30 in the vertical direction, between improving
The sensitivity and reliability that clearance detection apparatus 20 detects.
Further, lever construction further includes：Export guide rod 212, the second end that one end passes through articulated structure and lever 210
On kidney slot be connected, the other end is movable end；Second Horizontal limiting portion 214, is fixed on stent 208, for limiting output
Guide rod 212 moves horizontally；First tablet 216, guide rod 212 is vertical is fixedly connected with output, is carried out with output guide rod 212
Lower movement.
By hingedly exporting guide rod 212 in the second end of lever 210, and the other end of guide rod 212 is exported as movable end, make
The displacement of the second end amplification of lever 210 further passes to output guide rod 212；And it exports guide rod 212 and is subject to the second horizontal limit
The limitation in position portion 214, it is impossible to be moved horizontally, then can improve the accuracy that output guide rod 212 transfers displacement, reduce because defeated
Go out the lateral displacement of guide rail and influence displacement transmitted reliability；The first tablet is vertically fixedly connected on output guide rod 212
216, displacement sensitive surface is expanded, displacement sensor 218 is enable to be easier to sense the variation of distance, so as to improve gap
The sensitivity and reliability of detection device 20, and it is simple in structure, it is at low cost.
It is pointed out that the first tablet 216 is the output terminal of displacement amplifying mechanism；Output can not also be set to lead
Bar 212, and directly using the second end of lever 210 as output terminal, the second of lever 210 is directly sensed by displacement sensor 218
The change in displacement at end realizes the change in displacement between supporting leg slideway 30 and outrigger arm 32.
As shown in Figure 10, Figure 11, in the above-described embodiments, optionally, displacement amplifying mechanism is to include at least one dynamic cunning
The pulley block structure of wheel.
Using pulley block structure, less parts can be used, and it is compact-sized, structure is also relatively simple, light-weight,
The ratio of displacement equations is clear and definite, convenient for calculating.
Further, pulley block structure includes：First movable pulley 240, the second end of displacement guide rod 202 pass through first level
After limiting section 204, it is hinged with the shaft of the first movable pulley 240；First transmission belt 242, one end and the outer wall of supporting leg slideway 30
It is fixedly connected, the first transmission belt 242 is surrounded on the first movable pulley 240；Second movable pulley 244, arranged on the first movable pulley 240
Lower section, the other end of the first transmission belt 242 are connected with the shaft of the second movable pulley 244；Second transmission belt 246, one end and supporting leg
The outer wall of slideway 30 is fixedly connected, and the second transmission belt 246 is surrounded on the second movable pulley 244；Fixed pulley 248, it is dynamic arranged on second
244 lower section of pulley, the shaft of fixed pulley 248 are fixed on by pulley bracket on the outer wall of supporting leg slideway 30；Second transmission belt 246
The other end after the fixed pulley 248, be connected by spring with the top of shield 252；Second tablet 250, with the second transmission
It is fixedly connected with 246 other end, is moved up and down with the other end of the second transmission belt 246.
It is hinged by the shaft and the second end of displacement guide rod 202 of the first movable pulley 240, makes the position of displacement guide rod 202
Shifting can synchronously pass to the first movable pulley 240, and 242 one end of the first transmission belt is fixed on the outer wall of supporting leg slideway 30, the other end
It is looped around on the first movable pulley 240, and is connected with the shaft of the second movable pulley 244 of 240 lower section of the first movable pulley, lead displacement
When bar 202 brings up the first movable pulley 240, shifting of first transmission belt 242 with the first movable pulley 240 in the vertical direction
Dynamic, the other end generates twice of displacement therewith, and the position that the second coupled movable pulley 244 is driven also to carry out twice upwards
It moves；Fixed pulley 248 is arranged on the lower section of the second movable pulley 244, and the second transmission belt 246 is surrounded on the second movable pulley 244, one end with
The outer wall of slideway is fixedly connected, and after the other end bypasses the second movable pulley 244, then is looped around on the circumference of fixed pulley 248, and is passed through
252 top of spring and shield is connected, thus when the second movable pulley 244 moves up twice of displacement, the second transmission belt 246 it is another
One end is moved downwardly four times of displacements, it is achieved thereby that the purpose of displacement equations；When displacement guide rod 202 moves down, first
Movable pulley 240 moves down therewith, and the other end of the first transmission belt 242 also moves down, and under the effect of gravity, the second movable pulley 244 is therewith
It moving down, the other end of the second transmission belt 246 is no longer influenced by downward power of pullling, and under the contraction of spring, it moves up.
The second tablet 250 is fixedly connected in the other end of the second transmission belt 246, displacement sensitive surface can be expanded, improves soft leg detection
Reliability and sensitivity.
It is pointed out that in pulley block structure, the second tablet 250 is the output terminal of displacement amplifying mechanism.
In the above-described embodiments, optionally, gap detection device 20 is arranged on the lower surface or upper surface of supporting leg slideway.When
So, on the premise of design features mechanism, gap detection device 20 can also be arranged on to the side of supporting leg slideway.
Outrigger arm 32 is used as a solid structure, and when part of it is subjected to displacement, rest part can also be corresponded to therewith
Displacement, therefore, the gap variation b of outrigger arm 32 and 30 inner wall of supporting leg slideway in the vertical direction, except directly detecting supporting leg
The upper profile of arm 32 and the gap of 30 inner wall of supporting leg slideway and realize it is outer, can also be by detecting the bottom profiled and branch of outrigger arm 32
The gap of the inner wall of leg slideway 30 and realize or the inner wall top by detecting 32 side a part of outrigger arm and supporting leg slideway 30
The distance of portion or bottom and realize, as a result, gap detection device 20 be arranged in the same direction variation face lower surface or side can also realize
The purpose of soft leg detection, so that the installation site of gap detection device 20 is more flexible, conveniently adapts to different vehicles.
If gap detection device 20 to be arranged on to the lower surface of supporting leg slideway 30, need in the lower surface of outrigger arm 32
Sliding groove or rolling groove are set, and position limiting structure is set, is dropped down to avoid displacement guide rod 202 from sliding groove or rolling groove
Come；If gap detection device 20 is arranged on the side of supporting leg slideway 30, displacement guide rod 202 is preferably arranged to L-type, to pass
Pass vertical displacement.
Embodiment 1
As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9, the gap inspection of the one embodiment proposed according to the present invention
Device 20 is surveyed, on the outer wall of the supporting leg slideway 30 of engineering truck, specifically, arranged on the variation face in the same direction of supporting leg slideway 30
Upper surface.
Further, the gap detection device 20 of this specific embodiment is additionally provided with shield 252, shield 252 and supporting leg slideway
30 outer wall is fixedly connected, and the displacement amplifying mechanism and displacement equipped with displacement guide rod 202 and lever construction in shield 252 pass
Sensor 218.
Displacement guide rod 202 is vertically set, and through the outer wall of supporting leg slideway 30, displacement guide rod 202 stretches into supporting leg
Idler wheel is fixed in first end in 30 outer wall of slideway, idler wheel is placed on the upper surface of outrigger arm 32, meanwhile, displacement amplifying mechanism
First level limiting section 204 is equipped with, with moving horizontally for limiting displacement guide rod 202, the second end of displacement guide rod 202 is through the
It is connected after one Horizontal limiting portion 204 with displacement amplifying mechanism, and displacement guide rod 202 is in first level limiting section 204 and idler wheel
Between the body of rod on be additionally provided with compression spring 206.
Specifically, displacement amplifying mechanism includes stent 208 and lever 210 and output guide rod 212, wherein, stent
208 are fixed on the outer wall of supporting leg slideway 30, lever 210, including being arranged on the first end of lever 210 and the second end of lever 210
Between articulated section 2102, stent 208 is hinged with lever 210 by articulated section 2102, the second end of displacement guide rod 202 with
The first end of lever 210 is connected by articulated structure；Wherein, the first end of lever 210 to articulated section 2102 distance, less than thick stick
The second end of bar 210 is to the distance of articulated section 2102；Export second end of 212 one end of guide rod by articulated structure and lever 210
It is connected, the other end is movable end.
Displacement amplifying mechanism further includes the second Horizontal limiting portion 214, is fixed on stent 208, exports the activity of guide rod 212
End is through the second Horizontal limiting portion 214, to reduce the possibility that output guide rod 212 carries out horizontal movement；It exports vertical on guide rod 212
The first tablet 216, the i.e. output terminal of displacement amplifying mechanism are fixed with, the first tablet 216 carries out up and down with output guide rod 212
It is mobile；Displacement sensor 218 is arranged on 216 lower section of the first tablet, can also be arranged on the top of the first tablet, such as protect
Cover the position at top.
Fig. 8 shows the principle schematic of lever construction, as shown in figure 8, there is lever displacement input terminal C and displacement to export
D is held, the distance of C-terminal to balance pivot is L, and the distance at D ends to balance pivot is NL；In the downward shift length b of C-terminal, position
Shifting is amplified by D ends, and amplification factor is N times, i.e., D end movements distance is Nb.The present invention is exactly that make use of lever principle, by supporting leg
The gap variation b of very little between arm 32 and supporting leg slideway 30 is exaggerated, and to be detected, improves the sensitivity of detection
And reliability.Specifically, when supporting leg is liftoff, under the effect of gravity, supporting leg drives outrigger arm 32 to stretch out supporting leg slideway 30
One end sinks, and makes in the gap of vertical direction to increase between the inner wall of outrigger arm 32 and supporting leg slideway 30；As shown in Figure 7, Figure 8,
In the case where gravity and compression spring 206 act on, displacement guide rod 202 because by idler wheel vertically through being placed on branch after supporting leg slideway 30
On 32 upper surface of leg arm, therefore one end distance b can be moved down with the sinking of outrigger arm 32, and its displacement synchronous is transferred
To the first end of lever 210, the first end of lever 210 is sunk, and second end moves up, since the first end of lever 210 is to hingedly
The distance in portion 2102 is less than its second end to the distance of articulated section 2102, therefore the shift length of the first end of lever 210 is by it
Second end is amplified, the ratio of amplification and the distance of the second end of lever 210 to articulated section 2102 and the first end of lever 210 to hinge
The distance of socket part 2102 is in equal proportions, i.e., the distance of the second end of lever 210 to articulated section 2102 is the first end of lever 210
During to N times of the distance of articulated section 2102, the shift length of the second end of lever 210 is exactly the displacement of the first end of lever 210
N times of distance, therefore, the distance that the second end of lever 210 moves up is Nb；Meanwhile the second end of lever 210 is with exporting guide rod
212 is hinged, and output guide rod 212 also can only be vertically moving, and exports guide rod 212 equipped with vertical with output guide rail solid
Surely the first tablet 216 connected, therefore the first tablet 216 can be with the first end of output 212 synchronizing moving lever 210 of guide rod
N times of shift length, i.e. displacement distance Nb, and detected by the displacement sensor 218 of 216 lower section of the first tablet, installation
On displacement sensor 218 signal, soft leg alarm, even if so as between outrigger arm 32 and supporting leg slideway 30 are lost close to switch
Gap changes b very littles, can be also detected after amplifying N times, realize the gap detection of supporting leg, improve the reliability of gap detection
And sensitivity, structure is simplified, alleviates the weight of detection device, also saves the space of vehicle.
When supporting leg is supported, supporting leg is subject to the support force on ground, and the support force is passed to outrigger arm 32, makes branch
One end that leg arm 32 stretches out supporting leg slideway 30 is lifted, in the gap of vertical direction between the inner wall of outrigger arm 32 and supporting leg slideway 30
Reduce, displacement guide rod 202 is driven to move up distance b, and then by lever 210 output guide rod 212 is driven to move down Nb distances, make
The distance of first tablet 216 and displacement sensor 218 becomes smaller Nb, obtains signal close to switch, soft leg releases alarm.
Embodiment 2
According to another embodiment of the invention, as shown in figure 8, difference from Example 1 is, the position of the present embodiment
It moves enlarger and is not provided with output guide rod 212, but displacement sensor 218 is directly fixed on to the second end of lever 210, lever
210 second end is the output terminal of displacement amplifying mechanism, and lever 210 is directly hinged on the outside of supporting leg slideway, displacement sensing
Device 218 detects outrigger arm 32 and branch by inductive output end and the distance of 252 top of shield or the upper surface of supporting leg slideway 30
The gap variation b of leg slideway 30.
The present embodiment further simplifies structure, saves material.
Embodiment 3
As shown in Figure 10 and Figure 11, according to another embodiment of the invention, difference from Example 1 is, displacement
Enlarger employs pulley block structure rather than lever construction.
Figure 10 shows the principle of pulley blocks displacement enlargement, and as shown in Figure 10, C is the input terminal of pulley blocks displacement, and D is cunning
The output terminal of wheel group displacement.As a movable pulley displacement distance L, the movable end of circular transmission belt can then move thereon
2L, therefore movable pulley often increases by 1, displacement equations effect will increase 2 times, have 2 movable pulleys in Figure 10, therefore work as C
When end movement is L, the D ends of output displacement can then generate the displacement of 4L.
In the present embodiment, pulley block structure includes：First movable pulley 240, the second movable pulley 244, fixed pulley 248 and
First transmission belt 242 and the second transmission belt 246, wherein, the second movable pulley 244 is located at 240 lower section of the first movable pulley, fixed pulley
248 are located at the lower section of the second movable pulley 244, and the second end of displacement guide rod 202 is dynamic with first through after first level limiting section 204
The shaft of pulley 240 is hinged and connected；First transmission belt 242, one end are fixedly connected with the outer wall of supporting leg slideway 30, and the other end is from
The top of one movable pulley 240 is connected around later with the shaft of the second movable pulley 244 of lower section；Second transmission belt 246, one end with
The outer wall of supporting leg slideway 30 is fixedly connected, the other end from the top of the second movable pulley 244 around later, then under fixed pulley 248
Side surround and goes out, and is connected by spring with the top of shield 252；The shaft of fixed pulley 248 is fixed on supporting leg by pulley bracket
On the outer wall of slideway 30；Second tablet 250 is fixedly connected with the other end of the second transmission belt 246, with the second transmission belt 246
The other end move up and down.
From the foregoing, it will be observed that the present embodiment is by 2 movable pulleys, 240,244 and 1 fixed pulleys 248, can by outrigger arm 32 with
The gap variation b of supporting leg slideway 30 amplifies 4 times, i.e. gap variation b is synchronously passed to the input terminal of pulley blocks by displacement guide rod 202
C is exported after pulley blocks amplify 4 times from output terminal D, convenient for the detection of displacement sensor 218.
If increasing the quantity of movable pulley, the gap variation b of outrigger arm 32 and supporting leg slideway 30 can also be further amplified,
Often increase a movable pulley, then amplification factor increases by 2 times.
On the other hand, the invention also provides a kind of mechanical equipment, which includes supporting leg and any of the above-described inter-species
Clearance detection apparatus, the mechanical equipment can be the equipment that pump truck, fire fighting truck, crane etc. have supporting leg.Due to the mechanical equipment
With above-mentioned gap detection device, therefore, it may have above-mentioned effect is not repeating herein.
Technical scheme is described in detail above in association with attached drawing, by technical scheme, effectively will
The gap variation of outrigger arm and supporting leg slideway in the vertical direction is exaggerated, can so as to improve the gap detection of supporting leg
By property and sensitivity, meanwhile, the structure of gap detection device is simplified, alleviates weight, is also not take up the width spaces of equipment,
The span of equipment is not sacrificed.
In the present invention, term " first ", " second ", " the 3rd " are only used for the purpose described, and it is not intended that instruction
Or imply relative importance；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ",
The terms such as " connected ", " connection ", " fixation " should all be interpreted broadly, for example, " connection " can be fixedly connected or can
Dismantling connection is integrally connected；" connected " can be directly connected, and can also be indirectly connected by intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In description of the invention, it is to be understood that the instructions such as term " on ", " under ", "left", "right", "front", "rear"
Orientation or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention and simplification is retouched
It states rather than indicates or imply signified device or unit must have specific direction, with specific azimuth configuration and operation,
It is thus impossible to it is interpreted as limitation of the present invention.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc.
Mean to combine at least one reality that the particular features, structures, materials, or characteristics that the embodiment or example describe are contained in the present invention
It applies in example or example.In the present specification, schematic expression of the above terms is not necessarily referring to identical embodiment or reality
Example.Moreover, description particular features, structures, materials, or characteristics can in any one or more embodiments or example with
Suitable mode combines.
It these are only the preferred embodiment of the present invention, be not intended to limit the invention, for those skilled in the art
For member, the invention may be variously modified and varied.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of gap detection device of supporting leg (20), the supporting leg includes supporting leg slideway (30) and is arranged at the supporting leg slideway
(30) outrigger arm (32) in, which is characterized in that including：
Displacement guide rod (202), telescopically on the supporting leg slideway (30), the first end of the displacement guide rod (202) with
The outrigger arm (32) is slided or is rollably engaged；
Displacement amplifying mechanism, on the outer wall of the supporting leg slideway (30), the displacement amplifying mechanism and the displacement guide rod
(202) second end is connected, for amplifying the displacement of the displacement guide rod (202)；
Displacement sensor (218), for detecting the change in displacement of the output terminal of the displacement amplifying mechanism.
2. gap detection device (20) according to claim 1, which is characterized in that
The displacement guide rod (202) is arranged on the inside of the door-plate (302) of the supporting leg slideway (30), and vertically runs through institute
The outer wall of supporting leg slideway (30) is stated, the first end of the displacement guide rod (202) is arranged on the upper surface of the outrigger arm (32)；
The displacement amplifying mechanism includes：
First level limiting section (204), for limiting the horizontal displacement of the displacement guide rod (202).
3. gap detection device (20) according to claim 2, which is characterized in that further include：
Shield (252) covers at the displacement guide rod (202), the displacement amplifying mechanism and institute's displacement sensors (218)
Outside, the shield (252) is fixedly connected with the outer wall of the supporting leg slideway (30).
4. gap detection device (20) according to any one of claim 1 to 3, which is characterized in that the displacement equations
Mechanism is lever construction, and the lever construction includes：
Lever (210), the first end of the lever (210) are connected with the second end of the displacement guide rod (202), the lever
(210) second end connects the output terminal of the displacement amplifying mechanism or the second end of the lever (210) is put for the displacement
The output terminal of great institutions；
It is provided with articulated section (2102) on the lever (210), the first end of the lever (210) to the articulated section (2102)
Distance, less than the lever (210) second end to the articulated section (2102) distance.
5. gap detection device (20) according to claim 4, which is characterized in that the lever construction further includes：
Stent (208) is fixedly connected with the outer wall of the supporting leg slideway (30)；
The lever (210) is hinged by the articulated section (2102) and the stent (208), is set on the stent (208)
Equipped with first level limiting section (204), the displacement guide rod (202) is slidably matched with the first level limiting section (204).
6. gap detection device (20) according to claim 5, which is characterized in that the lever construction further includes：
Guide rod (212) is exported, one end is connected by articulated structure with the second end of the lever (210), and the other end is movable end；
Second Horizontal limiting portion (214), is arranged on the stent (208), for limiting the level of the output guide rod (212)
It is mobile；
First tablet (216), it is vertical with the output guide rod (212) to be fixedly connected, it is carried out with the output guide rod (212)
Lower movement；
Institute's displacement sensors (218), above or below first tablet (216), with detection and described first
The distance of tablet (216).
7. gap detection device (20) according to any one of claim 1 to 3, which is characterized in that the displacement equations
Mechanism is pulley block structure, and the pulley block structure includes at least one movable pulley.
8. gap detection device (20) according to claim 7, which is characterized in that the pulley block structure includes：
First movable pulley (240) is articulated with the second end of the displacement guide rod (202)；
First transmission belt (242), one end are fixedly connected with the outer wall of the supporting leg slideway (30), first transmission belt (242)
It is surrounded on first movable pulley (240)；
Second movable pulley (244), arranged on the lower section of first movable pulley (240), the other end of first transmission belt (242)
It is connected with the shaft of second movable pulley (244)；
Second transmission belt (246), one end are fixedly connected with the outer wall of the supporting leg slideway 30, the second transmission belt (246) ring
It is around on second movable pulley (244)；
Fixed pulley (248), below second movable pulley (244), the shaft of the fixed pulley (248) passes through pulley bracket
It is fixed on the outer wall of the supporting leg slideway (30)；
The other end of second transmission belt (246) passes through the top of spring and shield (252) after the fixed pulley (248)
Portion is connected；
Second tablet (250) is fixedly connected with the other end of second transmission belt (246), with second transmission belt
(246) the other end moves up and down；
Institute's displacement sensors (218), above or below second tablet (250), with detection and described second
The distance of tablet (250).
9. gap detection device (20) according to any one of claim 1-3, which is characterized in that
The gap detection device (20) is arranged on the lower surface or upper surface of the supporting leg slideway (30).
10. a kind of mechanical equipment, which is characterized in that including the gap detection device (20) any one of claim 1-9.
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| CN201810068119.0A CN108120412B (en) | 2018-01-24 | 2018-01-24 | Gap detection device and mechanical equipment |
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|---|---|---|---|
| CN201810068119.0A CN108120412B (en) | 2018-01-24 | 2018-01-24 | Gap detection device and mechanical equipment |
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| CN109926476A (en) * | 2019-04-26 | 2019-06-25 | 江苏扬力数控机床有限公司 | A kind of high-precision bending machine rear baffle |
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