CN113483870A - Dynamic and static combined stress plate type overrun overload detection device - Google Patents
Dynamic and static combined stress plate type overrun overload detection device Download PDFInfo
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- CN113483870A CN113483870A CN202110763027.6A CN202110763027A CN113483870A CN 113483870 A CN113483870 A CN 113483870A CN 202110763027 A CN202110763027 A CN 202110763027A CN 113483870 A CN113483870 A CN 113483870A
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- groove
- seat
- limiting
- lower pressing
- pressing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/03—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion
- G01G19/035—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles for weighing during motion using electrical weight-sensitive devices
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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
- G01B21/02—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 length, width, or thickness
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- G—PHYSICS
- G08—SIGNALLING
- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/01—Detecting movement of traffic to be counted or controlled
- G08G1/017—Detecting movement of traffic to be counted or controlled identifying vehicles
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
Abstract
The invention discloses a dynamic and static combined stress plate type overload and overload detection device, which comprises a fixing device, a weighing device, a pressing device, a limiting device and a height limiting assembly, wherein the fixing device comprises a base body and a fixing seat, the base body is connected with the weighing device, the pressing device is movably connected with the fixing seat, the limiting device is connected with the base body, the height limiting assembly is connected with the base body, the pressing device is movably connected with the weighing device, the limiting device is in transmission connection with the weighing device, the base body is provided with a fixing groove, the fixing seat is in fastening connection with the fixing groove, the fixing seat is provided with a pressing groove, the pressing device is movably connected with the pressing groove, the pressing device comprises a pressing seat, the outer side of the pressing seat is in sliding connection with the wall surface of the pressing groove, the pressing seat extends downwards and is provided with a pressing shaft, one side of the pressing shaft, far away from the pressing seat, is provided with a pressing plate, the pressing plate is in fastening connection with the pressing shaft, the fixing seat is internally provided with a weighing groove, a weighing device is arranged in the weighing groove.
Description
Technical Field
The invention relates to the technical field of overrun overload detection, in particular to a dynamic and static combined stress plate type overrun overload detection device.
Background
Along with the continuous development of road transportation industry, each province and city district is linked into one piece, various roads, bridges and tunnels are laid and finished, some transport vechicles improve the transportation volume once through the mode of overloading, transfinite, the transfinite mainly is that vehicle height is too high, transfinite vehicle when passing through tunnel and bridge, cause the destruction to internal bearing structure easily, influence normal current, and overloaded vehicle not only can cause the influence to self, in case meet the accident, because inertia is great, cause the braking unbalance easily, can cause serious damage to other vehicles of periphery, the highway traffic safety has greatly been influenced.
In order to reduce the overtime and overload vehicles, illegal vehicles are prevented from entering the highway, the bridge and the tunnel entrance through weighing detection and erecting a height limiting pole. Along with the increase of resident's purchasing power, the per-capita car occupation volume obviously improves, and static weighing can't satisfy large-traffic crossing and go, and adopt dynamic weighing can't satisfy the accuracy requirement, when detecting out the mistake, need guide the car volume to drive away from the highway section of dynamic weighing, then drive to one side specific track again, carry out static weighing, reduce detection efficiency, increase law enforcement personnel amount of labour.
Disclosure of Invention
The invention aims to provide a dynamic and static combined stress plate type overrun overload detection device to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme:
the utility model provides a board-like transfinite overload detection device of sound combination type stress, includes fixing device, weighing device, pushes down the device, stop device and limit for height subassembly, and fixing device includes base member and fixing base, and the base member is connected with the weighing device, pushes down device and fixing base swing joint, and stop device and base member are connected, limit for height subassembly and base member connection, push down device and weighing device swing joint, and stop device and weighing device transmission are connected, and the base member is equipped with the fixed slot, fixing base and fixed slot fastening connection.
Fixing device is main installation basis, install stop device and limit for height subassembly in proper order through the base member, make the push down device weigh the vehicle in succession through swing joint, weighing device carries out dynamic weighing to the vehicle, stop device and weighing device transmission are connected, when the vehicle axle is overweight, it is spacing to carry out the locking through stop device to the tire, directly carry out static weighing to the vehicle, improve and detect the accuracy nature, need not shift the vehicle to the side and weigh, improve detection efficiency, the base member is fixed the fixing base through the fixed slot, improve connection performance.
When a vehicle runs to a weighing position, the lower pressing seat is connected with the lower pressing groove in a sliding mode, wheels on the front portion of a carriage are instantaneously weightless, the lower pressing seat is driven to press downwards, the rear wheels of the whole carriage rotate around an instantaneous rotating center, the lower pressing seat drives the transmission shaft to move downwards, the lower pressing plate moves downwards, the lower pressing plate drives the detection iron core to move through the lower pressing plate, the jacking rod compresses gas in the gas chamber, the pressure is related to the gas compression stroke, the detection iron core performs cutting magnetic induction line motion in the detection coil, instantaneous current is detected through the ammeter, the corresponding axle weight is calculated, after the weighing of the front axle weight is completed, a rear axle runs to the lower pressing seat, the front wheels run to the limiting seat and enter the limiting clamping groove, the movable rod is driven to rotate through the movable pin, the clamping jaws are driven to rotate along the rotating pins in a centering mode through the movable pin, the clamping jaws enable the springs to stretch, and the pre-tightening force of the springs is set through limiting loads, the extension length of a return spring is adjusted, a claw rotating angle is set, when the limited load is exceeded, a tire is clamped tightly by a claw centering pair, a transmission rod at the tail end is driven to rotate, so that a transmission clamping block clamps a limiting block, the weight of the whole carriage moves downwards through a detection iron core, static weighing is carried out, when the mass of the whole carriage exceeds the limited load, compression ratios of compressed substances filled in air chambers at two sides are different, under the same mass, compression degrees at two sides are different, the extension length of a jacking rod is different, the carriage is driven to incline through a lower pressing plate, a front steering wheel deflects to one side by taking the carriage as a base point, the whole carriage is forcibly steered, the whole carriage is driven to one side, parking and unloading is carried out, and the traveling in a limited weight section is avoided.
Further, be equipped with down the indent on the fixing base, push down device and push down indent swing joint, push down the device and include the lower pressure seat, push down the seat outside and push down indent wall sliding connection, the lower pressure seat downwardly extending is equipped with down the push shaft, the push shaft is kept away from lower pressure seat one side and is equipped with the holding down plate, holding down plate and lower push shaft fastening connection, be equipped with weighing tank in the fixing base, be equipped with weighing device in the weighing tank, weighing device is including detecting the iron core, the detection coil, cylinder body and air pump, the inboard bottom surface symmetry of weighing tank is equipped with two cylinder bodies, be equipped with the air chamber on the cylinder body, be equipped with the piston in the air chamber, piston and air chamber seal setting, the piston upwards extends and is equipped with the lifting rod, lifting rod and holding down plate transmission connection, be filled with gas in the air chamber, air port and air chamber pass through the pipeline intercommunication, be equipped with the detection coil on the fixing base, air pump bottom and mounting groove fastening connection.
The lower pressure groove guides the lower pressure device through movable connection, the lower pressure seat performs displacement transmission through the lower pressure shaft, the stable distance after the lower pressure seat descends is the gravity settling length, the lower pressure seat increases along with the increase of the weight of a vehicle, the lower pressure plate is arranged at the lower side of the lower pressure shaft and transmits displacement through the lower pressure plate, the weighing device is fixed through the weighing groove, the lower pressure plate moves the detection iron core to move downwards and performs cutting magnetic induction line motion in a coil to generate induction current, the detection current value is detected, the gas chamber is filled with compressed gas through the increase of the current of the detection coil along with the increase of the height of the downward movement of the detection iron core, the lower pressure plate moves downwards to drive the jacking rod to move along the vertical plane, the jacking rod drives the piston to compress the gas in the cylinder body, when the piston descends to the bottom end, the piston works according to inertia force, the compressed gas provides reverse stroke to enable the piston to move upwards to drive the detection iron core to continuously move in the detection coil, the place that finally stays is the gravity work of unilateral axle load, fills the gassing to the air chamber through the air pump, avoids temperature variation to cause the air chamber internal pressure to change, increases and detects the accuracy nature.
Further, be equipped with the spacing groove on the base member, the limiting groove is equipped with stop device, stop device includes spacing seat, jack catch subassembly and commentaries on classics round pin, be equipped with spacing draw-in groove on the spacing seat, spacing seat and spacing groove fastening connection, spacing seat and jack catch subassembly swing joint, the jack catch subassembly includes two sets of jack catches, movable rod and loose pin, two sets of jack catches are through changeing round pin swing joint, be equipped with down the pinhole on the jack catch, change round pin and lower pinhole sliding connection, change round pin both sides and spacing seat fastening connection, adjacent movable rod passes through loose pin swing joint, the jack catch is equipped with the pinhole, movable rod one end and last pinhole swing joint, be equipped with the rotary groove on the spacing seat, clamping jaw and rotary groove sliding connection.
The base body fixes the limiting device through the limiting groove, the limiting seat is arranged in the limiting groove, the limiting seat fixes a wheel through the limiting clamping groove, the length of the clamping jaw is set according to the maximum load, the larger the load is, the shorter the length of the clamping jaw is, the rotating angle is improved, the detection error is prevented, the tire is clamped through the two clamping jaws which are symmetrically arranged, when the load exceeds the limit, the tire is fixed and prevented from loosening, the two clamping jaws are movably connected through the rotating pin, the rotating pin penetrates through the lower pin hole, the two ends of the rotating pin are fixed on the limiting seat, the clamping jaws are rotatably supported, the two clamping jaws are driven through the two movable rods, the movable rods are connected through the movable pins, when the tire is pressed downwards, the movable pins are driven to downwards move, the two movable rods are driven to rotate, the movable rods drive the clamping jaws to rotate through the upper pin holes, so that the two clamping jaws are centered and clamped, the transmission ratio is reduced, and the clamping torque is improved, when in centering and clamping, the clamping jaw is rotated and guided through the rotating groove.
Further, the base member both sides are equipped with a plurality of limit for height grooves, the limit for height subassembly is including limit for height pole, the inflation seat, inflation gasbag and slider, limit for height pole one side and inflation seat are connected, limit for height pole lower extreme and limit for height groove fastening connection, be equipped with the spout on the limit for height pole, be equipped with the inflation groove on the inflation seat, spout and inflation groove intercommunication, slider and spout sliding connection, inflation gasbag and inflation groove mouth portion connect, inflation gasbag one end inserts in the spout, slider one side is connected through connecting wire and inflation gasbag, the slider lower extreme is equipped with displacement sensor.
The matrix fixes the height-limiting rod through the height-limiting groove to prevent loosening, the expansion seat is fixed through the height-limiting rod, the expansion seat is trumpet-shaped, the expansion air bag is fixed through the expansion groove, the expansion groove is communicated with the sliding groove, the expansion air bag rotates along the joint of the expansion groove and the expansion groove under the action of the external atmospheric pressure, because the air pressure at the tail part of the vehicle is small, the expansion air bag is close to one side of the tail part, under the action of air pressure, one side of the expansion air bag close to the tail part is expanded, the lower end of the expansion air bag moves upwards, the connecting line drives the slide block to move upwards, the displacement sensor detects the displacement distance, when the truck runs, the tail part is a low-pressure area due to the large height difference between the upper part and the lower part, the upper side forms a lower vortex, the lower side forms an upper vortex, the density of isobars near the vortex center is increased along with the increase of the height of the compartment body, the pressure gradient is increased, and the suction force to the expansion air bag is increased.
Further, the jack catch downside is equipped with the transfer line, is equipped with the transmission groove on the base member, and transfer line and transmission groove swing joint are equipped with the through-hole on the fixing base, and transfer line one end passes the through-hole of fixing base, and transfer line one end is equipped with the transmission fixture block, is equipped with the stopper on detecting the iron core, and transmission fixture block and stopper transmission are connected.
The transmission rod is arranged on the lower side of the claw, the clamping jaw rotates to drive the transmission rod to rotate along the axis of the rotating pin, so that the transmission rods on two sides are centered and clamped, the transmission rod drives the transmission clamping block to move, so that the transmission clamping block is clamped into the arc-shaped groove in the limiting block, the claw locks the wheel part, two groups of wheels clamped by the pressing seat and the limiting seat are connected into a whole, the detection iron core is driven to move downwards together, and the static weighing is carried out on the compartment body part to improve the weighing accuracy.
As optimization, two ends of the return spring are respectively connected with the clamping jaw and the limiting seat, the return spring is matched with the clamping jaw to be used, and the weighing range of the carriage is adjusted through the pretightening force of the return spring.
As optimization, the lower pressing plate is provided with the spherical groove which is matched with the upper end of the piston rod, so that the lower pressing plate can incline in a vertical plane, and the lower pressing base is driven to incline by the lower pressing shaft.
As optimization, the pressure intensity of fluid filled in the air chambers on the two sides is the same, the air compression ratio is higher in the air chamber filled with air completely, the air chambers filled with the oil-air mixture are different under the same weight, the extending length of the jacking rod is changed, and therefore the vertical displacement difference is output.
Compared with the prior art, the invention has the following beneficial effects: when the vehicle runs to a weighing position, wheels at the front part of the carriage are instantaneously weightless to drive the lower pressing seat to press downwards, the lower pressing plate drives the detection iron core to move, the jacking rod compresses gas in the gas chamber, the pressure is related to the gas compression stroke, the detection iron core performs cutting magnetic induction linear motion in the detection coil, and the instantaneous current is detected by the ammeter, so that the corresponding axle weight is calculated, and the vehicle is dynamically weighed; after the front axle weight is weighed, the rear axle runs to the lower pressing seat, the front wheel runs to the limiting seat, the spring pretightening force is set through limiting load, the stretching length of a return spring is adjusted, the turning angle of a clamping jaw is set, when the limited load is exceeded, the clamping jaw clamps a tire, the tire is braked, a transmission rod at the tail end is driven to rotate, so that a transmission clamping block clamps a limiting block, the weight of the whole carriage moves downwards through a detection iron core, and static weighing is carried out; by combining dynamic weighing and static weighing, the detection precision and the detection efficiency are improved; when the mass of the whole vehicle exceeds the limited load, the compression degrees of the gas on the two sides are inconsistent, so that the extension lengths of the jacking rods are different, the carriage is driven to incline by the lower pressing plate, the front steering wheel is deflected to one side by taking the carriage as a base point, the whole vehicle is forcibly steered to rotate to one side, the whole vehicle is stopped and unloaded, and the running of the whole vehicle on a limited road section is avoided; when the truck travels, the height difference is large, the tail is a low-pressure area, a lower vortex is formed on the upper side, an upper vortex is formed on the lower side, the pressure gradient is increased along with the increase of the height of a truck body, the suction force of the expansion airbag is increased, the expansion airbag is close to one side of the tail under the action of air pressure, the lower end of the expansion airbag moves upwards, the sliding block is driven by a connecting wire to move upwards, the height of the middle part of the truck is detected through the displacement distance, and the collision caused by the height limitation of a limit column is avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is a sectional view taken along line A-A of the view of FIG. 1;
FIG. 3 is a schematic view of a vehicle hold-down configuration of the present invention;
FIG. 4 is a schematic illustration of the wagon tipping arrangement of the present invention;
FIG. 5 is a schematic view of the structure of the position limiting device of the present invention;
FIG. 6 is a schematic view of the tire locking structure of the present invention;
FIG. 7 is a schematic view of the height limiting assembly of the present invention;
FIG. 8 is a schematic view of the air flow of the present invention;
in the figure: 1-fixing device, 11-base body, 111-fixing groove, 112-height limiting groove, 113-limiting groove, 114-transmission groove, 12-fixing seat, 121-pressing groove, 122-weighing groove, 123-mounting groove, 2-weighing device, 21-detection iron core, 22-limiting block, 23-detection coil, 24-jacking rod, 25-piston, 26-cylinder body, 261-air chamber, 27-air pump, 3-pressing device, 31-pressing seat, 311-arc surface, 32-pressing shaft, 33-pressing plate, 331-spherical groove, 4-limiting device, 41-limiting seat, 411-limiting clamping seat, 412-rotating groove, 42-clamping jaw component, 421-clamping jaw, 4211-upper pin hole, 4212-lower pin hole, 422-movable rod, 423-movable pin, 44-transmission rod, 45-transmission fixture block, 46-return spring, 5-height limiting component, 51-height limiting rod, 511-sliding groove, 52-expansion seat, 521-expansion groove, 53-sliding block, 54-expansion air bag, 55-displacement sensor and 56-connecting line.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides the technical scheme that:
as shown in figures 1-8, a board-like transfinite overload detection device of sound combination type stress, including fixing device 1, weighing device 2, push down device 3, stop device 4 and limit for height subassembly 5, fixing device 1 includes base member 11 and fixing base 12, base member 11 and weighing device 2 are connected, push down device 3 and fixing base 12 swing joint, stop device 4 and base member 11 are connected, limit for height subassembly 5 and base member 11 are connected, push down device 3 and 2 swing joint of weighing device, stop device 4 and 2 transmission connections of weighing device, base member 11 is equipped with fixed slot 111, fixing base 12 and fixed slot 111 fastening connection.
Fixing device 1 is main installation basis, install stop device 4 and limit for height subassembly 5 in proper order through base member 11, make push down device 3 weigh the vehicle in succession through swing joint, weighing device 2 carries out dynamic weighing to the vehicle, stop device 4 and 2 transmission of weighing device are connected, when the vehicle axle load is too big, it is spacing to carry out the locking through stop device 4 to the tire, directly carry out static weighing to the vehicle, improve and detect the accuracy nature, need not shift the vehicle to the side and weigh, improve detection efficiency, base member 11 fixes fixing base 12 through fixed slot 111, and the connection performance is improved.
When a vehicle runs to a weighing position, the lower pressing seat 31 is connected with the lower pressing groove 121 in a sliding manner, so that wheels at the front part of the carriage are instantaneously weightless, the lower pressing seat 31 is driven to press down, the rear wheels of the whole carriage rotate around an instantaneous rotation center, the lower pressing seat 31 drives the transmission shaft 32 to move downwards, the lower pressing plate 33 moves downwards, the lower pressing plate 33 drives the detection iron core 21 to move, the jacking rod 24 compresses gas in the gas chamber 261, the pressure is related to the gas compression stroke, the detection iron core 21 performs cutting magnetic induction linear motion in the detection coil 23, instantaneous current is detected through an ammeter, so that the corresponding axle weight is calculated, after the weighing of the front axle weight is completed, a rear axle runs to the lower pressing seat 31, the front wheels run to the limiting seat 41 and enter the limiting clamping groove 411, the movable rod 422 is driven to rotate through the movable pin 423, the clamping claw 421 is driven to rotate along the rotating pin 43 in a centering manner through the movable rod 422, the jack catch 421 makes the return spring 46 stretch, set up the spring pretightening force through limiting the load, adjust the extension length of the return spring 46, set up the corner of the jack catch 421, when exceeding the limited load, the jack catch 421 centers and clamps the tire, drive the transfer line 44 of the tail end to rotate, thus make the transfer fixture block 45 clamp the stopper 22, make the weight of the whole carriage move down through detecting the iron core 21, carry on the static weighing, when the whole vehicle mass exceeds the limited load, the compression ratio of the filling compression of the compressed material is different in the air chamber 261 of both sides, under the same mass, the degree of compression of both sides is inconsistent, make the lifting rod 24 extend out the length to produce the difference, thus drive the inclined carriage through the lower plate 33, regard carriage as the basic point, make the front turn to the wheel to deflect to one side, force the whole vehicle to turn to one side, stop and unload, avoid going into the limited weight highway section.
As shown in fig. 1, 2 and 4, a lower pressing groove 121 is arranged on a fixed seat 12, a lower pressing device 3 is movably connected with the lower pressing groove 121, the lower pressing device 3 includes a lower pressing seat 31, the outer side of the lower pressing seat 31 is slidably connected with the wall surface of the lower pressing groove 121, a lower pressing shaft 32 is arranged on the lower pressing seat 31 in a downward extending manner, a lower pressing plate 33 is arranged on one side of the lower pressing shaft 32 away from the lower pressing seat 31, the lower pressing plate 33 is fixedly connected with the lower pressing shaft 32, a weighing groove 122 is arranged in the fixed seat 12, a weighing device 2 is arranged in the weighing groove 122, the weighing device 2 includes a detection iron core 21, a detection coil 23, a cylinder 26 and a gas pump 27, two cylinders 26 are symmetrically arranged on the bottom surface of the inner side of the weighing groove 122, an air chamber 261 is arranged on the cylinder 26, a piston 25 is arranged in the air chamber 261, the piston 25 and the air chamber 261 are hermetically arranged, a jacking rod 24 is arranged on the piston 25 in an upward extending manner, the jacking rod 24 is in transmission connection with the lower pressing plate 33, the air chamber 261 is filled with gas, the gas pump 27 is communicated with the air chamber 261 through a pipeline, the fixing seat 12 is provided with an installation groove 123, and the bottom end of the detection coil 23 is fastened and connected with the installation groove 123.
The lower pressing groove 121 guides the lower pressing device 3 through movable connection, the lower pressing seat 31 performs displacement transmission through the lower pressing shaft 32, the stable distance after the lower pressing seat 31 descends is the gravity settling length, the gravity settling length increases along with the increase of the vehicle weight, the lower pressing plate 33 is arranged on the lower side of the lower pressing shaft 32, the displacement is transmitted through the lower pressing plate 33, the weighing device 2 is fixed through the weighing groove 122, the lower pressing plate 33 drives the detection iron core 21 to move downwards, the cutting magnetic induction line motion is performed in the coil to generate induction current, the current value is detected, the current passing through the detection coil 23 is increased along with the increase of the height of the detection iron core 21 moving downwards, the gas after compression is filled in the gas chamber 261, the lower pressing plate 33 moves downwards to drive the jacking rod 24 to move along the vertical plane, the jacking rod 24 drives the piston 25 to compress the gas in the cylinder 26, when the piston 25 descends to the bottom end, the compressed gas provides reverse stroke according to the inertia force, the piston is moved upwards to drive the detection iron core 21 to move continuously in the detection coil 23, the finally staying place applies work for the gravity of the axle weight on one side, the air pump 27 is used for inflating and deflating the air chamber 261, the pressure intensity in the air chamber 261 is prevented from changing due to temperature change, and the detection accuracy is improved.
As shown in fig. 1 and 5, a limiting groove 113 is formed in a base 11, a limiting device 4 is arranged in the limiting groove 113, the limiting device 4 includes a limiting seat 41, a jaw assembly 42 and a rotating pin 43, a limiting clamping groove 411 is formed in the limiting seat 41, the limiting seat 41 is fastened and connected with the limiting groove 113, the limiting seat 41 is movably connected with the jaw assembly 42, the jaw assembly 42 includes two sets of jaws 421, a movable rod 422 and a movable pin 423, the two sets of jaws 421 are movably connected through the rotating pin 43, a lower pin hole 4212 is formed in each jaw 421, the rotating pin 43 is slidably connected with the lower pin hole 4212, two sides of the rotating pin 43 are fastened and connected with the limiting seat 41, adjacent movable rods 422 are movably connected through the movable pin 423, each jaw 421 is provided with an upper pin hole 4211, one end of each movable rod 422 is movably connected with the upper pin hole 4211, a rotating groove 412 is formed in the limiting seat 41, and each jaw 421 is slidably connected with the rotating groove 412.
The base body 11 fixes the limiting device 4 through the limiting groove 113, the limiting seat 41 is arranged in the limiting groove 113, the limiting seat 41 fixes the wheel through the limiting clamping groove 411, the length of the clamping jaw 42 is set according to the maximum load, the larger the load is, the shorter the clamping jaw length is, the rotation angle is improved, the detection error is prevented, the tire is clamped through the two clamping jaws 421 which are symmetrically arranged, when the load exceeds the limit, the tire is fixed and prevented from loosening, the two clamping jaws 421 are movably connected through the rotating pin 43, the rotating pin 43 passes through the lower pin hole 4212, the two ends of the rotating pin are fixed on the limiting seat 41, the clamping jaws 421 are rotatably supported, the two clamping jaws 421 are driven through the two movable rods 422, the movable rods 422 are connected through the movable pin 423, when the tire is pressed down, the movable pin 423 is driven to move down, the two movable rods 422 rotate, the movable rods 422 drive the clamping jaws to rotate through the upper pin hole 4211, so that the two clamping jaws 421 are centered and clamped, the transmission ratio is reduced, the clamping torque is increased, and the clamping jaw 421 is rotatably guided by the rotating groove 412 during centering clamping.
As shown in figures 1 and 7, a plurality of height-limiting grooves 112 are arranged on two sides of a base body 11, a height-limiting assembly 5 comprises a height-limiting rod 51, an expansion seat 52, an expansion air bag 54 and a slide block 53, one side of the height-limiting rod 51 is connected with the expansion seat 52, the lower end of the height-limiting rod 51 is fixedly connected with the height-limiting grooves 112, a slide groove 511 is arranged on the height-limiting rod 51, an expansion groove 521 is arranged on the expansion seat 52, the slide groove 511 is communicated with the expansion groove 521, the slide block 53 is connected with the slide groove 511 in a sliding mode, the expansion air bag 54 is connected with the opening part of the expansion groove 521, one end of the expansion air bag 54 is inserted into the slide groove 511, one side of the slide block 53 is connected with the expansion air bag 54 through a connecting line 56, and a displacement sensor 55 is arranged at the lower end of the slide block 53.
The matrix 11 fixes the height-limiting rod 51 through the height-limiting groove 112 to prevent looseness, the expansion seat 52 is fixed through the height-limiting rod 51, the expansion seat 52 is in a horn shape, the expansion airbag 54 is fixed through the expansion groove 521, the expansion groove 521 is communicated with the sliding groove 511, the expansion airbag 54 rotates along the joint with the expansion groove 521 under the action of external atmospheric pressure, the expansion airbag 54 is close to one side of the tail part due to small air pressure of the tail part of the vehicle, the expansion airbag 54 expands close to one side of the tail part under the action of the air pressure, the lower end of the expansion airbag 54 moves upwards, the sliding block 53 is driven by the connecting line 56 to move upwards, the displacement distance is detected by the displacement sensor 55, when the truck runs, the tail part is a low-pressure area due to large height difference between the upper part and the lower part, a lower vortex is formed on the upper part, and the density of isobars near the vortex center increases along with the increase of the height of the truck body, the pressure gradient increases and suction to the inflated bladder 54 increases.
As shown in fig. 5 and 6, a transmission rod 44 is arranged on the lower side of the claw 421, a transmission groove 114 is arranged on the base 11, the transmission rod 44 is movably connected with the transmission groove 114, a through hole is arranged on the fixing base 12, one end of the transmission rod 44 penetrates through the through hole of the fixing base 12, a transmission fixture block 45 is arranged at one end of the transmission rod 44, a limiting block 22 is arranged on the detection iron core 21, and the transmission fixture block 45 is in transmission connection with the limiting block 22.
The transmission rod 44 is arranged on the lower side of the claw 421, the clamping jaw 421 rotates to drive the transmission rod 44 to rotate along the axis of the rotating pin 43, so that the transmission rods 44 on the two sides are centered and clamped, the transmission rod 44 drives the transmission fixture block 45 to move, so that the transmission fixture block is clamped into the arc-shaped groove on the limiting block 22, the claw 421 locks the wheel part, two groups of wheels clamped by the lower pressing seat 31 and the limiting seat 41 are connected into a whole, the detection iron core 21 is driven to move downwards together, and the static weighing is carried out on the compartment part to improve the weighing accuracy.
As shown in fig. 5, two ends of the return spring 46 are respectively connected with the claw 42 and the limit seat 41, the return spring 46 is used in cooperation with the claw 421, and the weighing range of the carriage is adjusted through the pretightening force of the return spring 46.
As shown in fig. 4, a spherical groove 331 is formed on the lower pressing plate 33 to be engaged with the upper end of the piston rod 24, so that the lower pressing plate 33 can be tilted in a vertical plane, thereby driving the lower pressing base 31 to be tilted by the lower pressing shaft 32.
As shown in fig. 4, the pressure of the fluid filled in the air chambers 261 at the two sides is the same, the air compression ratio is higher in the air chamber filled with the gas completely, and the air compression ratio at the two sides is different in the air chamber 261 filled with the oil-gas mixture, so that the extension length of the jacking rod 24 is changed, and the vertical displacement difference is output.
The working principle of the invention is as follows: when the vehicle runs to a weighing position, the lower pressing seat 31 is connected with the lower pressing groove 121 in a sliding mode, so that wheels at the front part of the carriage are instantaneously weightless, the lower pressing seat 31 is driven to press downwards, the rear wheels of the whole carriage rotate as an instantaneous rotation center, the lower pressing seat 31 drives the transmission shaft 32 to move downwards, the lower pressing plate 33 moves downwards, the lower pressing plate 33 drives the detection iron core 21 to move, the jacking rod 24 compresses gas in the gas chamber 261, the pressure is related to the gas compression stroke, the detection iron core 21 performs magnetic induction line cutting motion in the detection coil 23, instantaneous current is detected through the ammeter, and the corresponding axle weight is calculated; after the front axle weight is weighed, the rear axle runs to the lower pressing seat 31, the front wheel runs to the limiting seat 41 and enters the limiting clamping groove 411, the movable pin 423 drives the movable rod 422 to rotate, the movable rod 422 drives the clamping jaw 421 to rotate along the rotating pin 43 in a centering manner, the clamping jaw 421 enables the return spring 46 to stretch, the spring pretightening force is set through limiting the load, the stretching length of the return spring 46 is adjusted, the rotating angle of the clamping jaw 421 is set, when the limited load is exceeded, the clamping jaw 421 centers to clamp the tire, the transmission rod 44 at the tail end is driven to rotate, so that the transmission clamping jaw 45 clamps the limiting block 22, the weight of the whole carriage moves downwards through the detection iron core 21, and static weighing is performed; when the mass of the whole vehicle exceeds the limited load, the compression ratios of the compressed substances filled in the air chambers 261 at the two sides are different, and under the same mass, the compression degrees at the two sides are different, so that the extension lengths of the jacking rods 24 are different, the carriage is driven to incline by the lower pressing plate 33, the front steering wheel is deflected to one side by taking the carriage as a base point, and the whole vehicle is forcibly steered; when a truck runs, due to the fact that the height difference between the upper part and the lower part is large, the tail part is a low-pressure area, a lower vortex is formed on the upper side, an upper vortex is formed on the lower side, along with the increase of the height of a truck body, the density degree of isobars near the center of the vortex is increased, the pressure gradient is increased, the suction force to the expansion air bag 54 is increased, the expansion air bag 54 is close to one side of the tail part, under the action of air pressure, the expansion air bag 54 is expanded close to one side of the tail part, the lower end of the expansion air bag 54 moves upwards, the sliding block 53 is driven to move upwards through the connecting line 56, and the displacement distance is detected through the displacement sensor 55.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a board-like transfinite overload detection device of sound combination type stress which characterized in that: the overrun overload detection device comprises a fixing device (1), a weighing device (2), a pressing device (3), a limiting device (4) and a height limiting assembly (5), wherein the fixing device (1) comprises a base body (11) and a fixing seat (12), the base body (11) is connected with the weighing device (2), the pressing device (3) is movably connected with the fixing seat (12), the limiting device (4) is connected with the base body (11), the height limiting assembly (5) is connected with the base body (11), the pressing device (3) is movably connected with the weighing device (2), the limiting device (4) is in transmission connection with the weighing device (2), the base body (11) is provided with a fixing groove (111), and the fixing seat (12) is fastened and connected with the fixing groove (111).
2. The dynamic and static combined stress plate type overrun and overload detection device as claimed in claim 1, wherein: the device is characterized in that a lower pressing groove (121) is formed in the fixed seat (12), the lower pressing device (3) is movably connected with the lower pressing groove (121), the lower pressing device (3) comprises a lower pressing seat (31), the outer side of the lower pressing seat (31) is connected with the wall surface of the lower pressing groove (121) in a sliding mode, a lower pressing shaft (32) extends downwards from the lower pressing seat (31), a lower pressing plate (33) is arranged on one side, away from the lower pressing seat (31), of the lower pressing shaft (32), the lower pressing plate (33) is connected with the lower pressing shaft (32) in a fastening mode, a weighing groove (122) is formed in the fixed seat (12), a weighing device (2) is arranged in the weighing groove (122), the weighing device (2) comprises a detection iron core (21), a detection coil (23), a cylinder body (26) and an air pump (27), two cylinder bodies (26) are symmetrically arranged on the bottom surface of the inner side of the weighing groove (122), and an air chamber (261) is formed in the cylinder body (26), be equipped with piston (25) in air chamber (261), piston (25) and air chamber (261) seal up and set up, and piston (25) upwards extend and are equipped with jacking rod (24), jacking rod (24) and holding down plate (33) transmission are connected, be filled with gas in air chamber (261), air pump (27) gas port and air chamber (261) pass through the pipeline intercommunication, be equipped with mounting groove (123) on fixing base (12), detect coil (23) bottom and mounting groove (123) fastening connection.
3. The dynamic and static combined stress plate type overrun and overload detection device as claimed in claim 2, wherein: the base body (11) is provided with a limiting groove (113), a limiting device (4) is arranged in the limiting groove (113), the limiting device (4) comprises a limiting seat (41), a jaw assembly (42) and a rotating pin (43), a limiting clamping groove (411) is arranged on the limiting seat (41), the limiting seat (41) is fixedly connected with the limiting groove (113), the limiting seat (41) is movably connected with the jaw assembly (42), the jaw assembly (42) comprises two groups of jaws (421), a movable rod (422) and a movable pin (423), the two groups of jaws (421) are movably connected through the rotating pin (43), the jaws (421) are provided with lower pin holes (4212), the rotating pin (43) is slidably connected with the lower pin holes (4212), two sides of the rotating pin (43) are fixedly connected with the limiting seat (41), the adjacent movable rods (422) are movably connected through the movable pin (423), the jaws (421) are provided with upper pin holes (4211), one end of the movable rod (422) is movably connected with the upper pin hole (4211), a rotating groove (412) is formed in the limiting seat (41), and the clamping jaw (421) is connected with the rotating groove (412) in a sliding mode.
4. The dynamic and static combined stress plate type overrun and overload detection device as claimed in claim 2, wherein: the height limiting device is characterized in that a plurality of height limiting grooves (112) are formed in two sides of the base body (11), the height limiting assembly (5) comprises a height limiting rod (51), an expansion seat (52), an expansion air bag (54) and a sliding block (53), one side of the height limiting rod (51) is connected with the expansion seat (52), the lower end of the height limiting rod (51) is fixedly connected with the height limiting grooves (112), a sliding groove (511) is formed in the height limiting rod (51), an expansion groove (521) is formed in the expansion seat (52), the sliding groove (511) is communicated with the expansion groove (521), the sliding block (53) is slidably connected with the sliding groove (511), the expansion air bag (54) is connected with an inner groove portion of the expansion groove (521), one end of the expansion air bag (54) is inserted into the sliding groove (511), one side of the sliding block (53) is connected with the expansion air bag (54) through a connecting line (56), and a displacement sensor (55) is arranged at the lower end of the sliding block (53).
5. The dynamic and static combined stress plate type overrun and overload detection device as claimed in claim 3, wherein: jack catch (421) downside is equipped with transfer line (44), be equipped with transmission groove (114) on base member (11), transfer line (44) and transmission groove (114) swing joint, be equipped with the through-hole on fixing base (12), the through-hole of fixing base (12) is passed to transfer line (44) one end, and transfer line (44) one end is equipped with transmission fixture block (45), be equipped with stopper (22) on detecting iron core (21), transmission fixture block (45) and stopper (22) transmission are connected.
6. The dynamic and static combined stress plate type overrun and overload detection device as claimed in claim 5, wherein: stop device (4) still include return spring (46), return spring (46) upper end and jack catch (42) are connected, and return spring (46) lower extreme and spacing seat (41) are connected.
7. The dynamic and static combined stress plate type overrun and overload detection device as claimed in claim 2, wherein: the pressing device is characterized in that a spherical groove (331) is formed in the lower pressing plate (33), the top end of the piston rod (24) is arc-shaped, and arc-shaped surfaces (311) are arranged on two sides of the pressing base (31).
8. The dynamic and static combined stress plate type overrun and overload detection device as claimed in claim 7, wherein: the air chambers (261) on the two sides are respectively filled with compressed air and oil-gas mixture.
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| CN202110763027.6A CN113483870B (en) | 2021-07-06 | 2021-07-06 | Dynamic and static combined stress plate type overrun overload detection device |
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| CN202110763027.6A CN113483870B (en) | 2021-07-06 | 2021-07-06 | Dynamic and static combined stress plate type overrun overload detection device |
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| CN113483870B CN113483870B (en) | 2023-10-10 |
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| RU71427U1 (en) * | 2007-07-26 | 2008-03-10 | Геннадий Анатольевич Панюхно | PORTABLE DEVICE FOR DETERMINING WEIGHT OF VEHICLES |
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| CN113483870B (en) | 2023-10-10 |
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