CN205642851U - Cylinder counter -force type braking checkout stand dynamic calibration device - Google Patents

Abstract

The utility model discloses a cylinder counter -force type braking checkout stand dynamic calibration device, including set up power device on the workstation, with transmission that power device connects, be equipped with the installation cavity the carousel device, set up in the installation cavity is indoor draw drag the device, with draw the force transfer device who drags the device and connect, force transfer device include with the drag link mechanism of carousel device joint, first lever mechanism, second lever mechanism, first lever mechanism with the second lever mechanism all with the drag link mechanism rotates to be connected and simultaneous movement. Can realize the dynamic calibration of cylinder counter -force type braking checkout stand, especially left and right round of brake force increases and the calibration of balanced subalternation key parameter, and the influence of having synthesized system error, dynamic characteristic and measuring circuit of above -mentioned calibration process for the calibration accuracy improves greatly, has improved calibrating device's reliability.

Description

Drum reaction brake test bench dynamic calibration apparatus

Technical field

This utility model relates to automobile brake perfrmance detection equipment technical field, especially relates to a kind of cylinder anti- Power formula brake test bench dynamic calibration apparatus.

Background technology

Drum reaction brake test bench (hereinafter referred to as check-out console) is that current domestic motor vehicles safety check mechanism is wide The automobile brake perfrmance inspection equipment of general use, its measurement accuracy directly affects reviewer and pacifies automobile The judgement of full performance and evaluation.With calibration operation, the daily calibrating carrying out check-out console is to ensure that number measured by check-out console According to important technical accurately and reliably.But, existing national metrological verification regulations JJG 906-2009 " rolling Cylinder anti-force type brake test bench " in described drum reaction brake test bench calibration method be typically in inspection That tests platform drives the state that motor is in power-off, cylinder is static, and measuring circuit is under non-detection pattern, Single load cell (sensor) is examined and determine by the static criteria power utilizing counterweight or jack to produce.

On the one hand the drawback that this calibration method exists includes, the test condition of said method and the actual work of check-out console Making status difference relatively big, it does not considers decelerating through motor system and the dynamic response of drum apparatus and rotary inertia Impact, have ignored calibrating with detection pattern under electromotive signal difference in design of hardware and software, meanwhile, its Cannot the uncertainty measured of Assessment and check platform systematic error, thus cause calibration data distortion (usual error Up to more than 35%), therefore can not accurately reflect the metering performance of measurement system, calibrating even occur for " closing Lattice " check-out console real work time be but abnormal situation；On the other hand, its verification process is to inspection Left wheel brake verifying attachment and the right wheel brake inspection device of platform are individually examined and determine, thus its selected be several Individual discrete reference value is calibrated, it is impossible to overall process and left and right brake force of taking turns that brake force is increased by realization are put down The key parameters such as weighing apparatus difference are calibrated, cause calibrating not comprehensively, system and accurately, it is impossible to reaction automobile system The truth of dynamic performance, and exactly these parameters are distinctly claimed in concerned countries standard.

Summary of the invention

Based on this, this utility model provides a kind of drum reaction brake test bench dynamic calibration apparatus, is Overcome the defect of prior art, it is achieved drum reaction brake test bench in working order under dynamic calibration and The calibration of brake-force balance difference, calibration data precision is high, and reliability is high.

The purpose of this utility model is achieved in that

A kind of drum reaction brake test bench dynamic calibration apparatus, including the power dress being arranged on workbench Put be connected with described power set actuating device, be provided with install chamber rotating-table apparatus, be arranged at described The load transfer device that the pulling device of installation cavity indoor is connected with described pulling device；

Described load transfer device include with the drag link mechanism of described rotating-table apparatus clamping, for the revolver with check-out console Verifying attachment or right wheel verifying attachment connect the first leverage with Transfer Standards brake force and are used for and inspection Right wheel verifying attachment or the revolver verifying attachment of testing platform connect the second leverage with Transfer Standards brake force, Described first leverage and described second leverage are all rotationally connected with described drag link mechanism and synchronize fortune Dynamic.

Below technical scheme is further described:

Further, described rotating-table apparatus includes that the support seat being arranged on workbench is joined with described support seat Close connect rotating shaft, be set in described rotating shaft and the turntable body that cooperates and disk cover and with described The transmission connection piece that rotating shaft, described disk cover and described drag link mechanism are all connected with, described turntable body and described Forming described installation chamber between disk cover, it is indoor extremely that described pulling device includes being arranged in described installation cavity Few two pull mechanism, and two described pulling mechanisms are all connected with described transmission connection piece.

Further, also including being arranged at the lattice retaining device that described installation cavity is indoor, described lattice retaining device includes The lattice block piece that at least three is evenly arranged along the circumference of described turntable body, described installation chamber passes through three institutes Stating lattice block piece and be divided into three slip chambers, the quantity of described pulling mechanism is three, three described pulling machines Structure is arranged at three described sliding cavities indoor the most correspondingly and is all connected with described transmission connection piece.

Further, described pulling mechanism include weight member, the guide being fixed in described turntable body, And around the drawing article being loaded on described guide and be all connected with described weight member and described transmission connection piece.

Further, also compress between described turntable body and described weight member and be provided with hold-down mechanism, described Hold-down mechanism includes fitting and the first elastic press part being set on described fitting.

Further, described rotating-table apparatus also includes the second elastic press part, and described rotating shaft is provided with the shaft shoulder, institute State the second elastic press part to be set in described rotating shaft and compress and be arranged at described transmission connection piece and described axle Between shoulder.

Further, described first leverage includes the first lever piece, is all rotationally connected with the first lever piece The first force rod member and the first bearing, described first bearing is arranged at described first force rod member side position In the one end away from described drag link mechanism, described second leverage includes the second lever piece, all with described The second force rod member and the second bearing that two lever pieces are rotationally connected, described second bearing is arranged at described second Force rod member side is also located close to one end of described drag link mechanism.

Further, also include that the first force transducer and the second force transducer, described first force transducer are arranged Exerting a force on rod member in described first, described second force transducer is arranged on described second force rod member.

Further, also include the first level indicator and be arranged at the first regulation on described first force rod member Part, the second level indicator and be arranged at described second force rod member on the second regulating part, described first level Instrument is arranged on described first lever piece, and described second level indicator is arranged on described second lever piece.

The beneficial effects of the utility model are:

Above-mentioned drum reaction brake test bench dynamic calibration apparatus, by described power set, described transmission Device drives described rotating-table apparatus to rotate, and thus makes the weight member in described rotating-table apparatus produce centrifugal force (i.e. Standard brake force), and by described pulling mechanism and described drag link mechanism, standard brake force is passed through described first thick stick Linkage and described second leverage synchronize to pass to the revolver verifying attachment of drum reaction brake test bench With right wheel verifying attachment, the dynamic calibration of drum reaction brake test bench thus can be realized, especially left, Right wheel brake force increases and the calibration of the key parameters such as balanced differences, and above-mentioned calibration process combines system by mistake Difference, dynamic characteristic and the impact of measuring circuit so that calibration accuracy is greatly improved, and improves calibrating installation Reliability.

Accompanying drawing explanation

Fig. 1 is the knot of the drum reaction brake test bench dynamic calibration apparatus described in this utility model embodiment Structure schematic diagram；

Fig. 2 is the dress of the drum reaction brake test bench dynamic calibration apparatus described in this utility model embodiment Distribution structure schematic diagram；

Fig. 3 is the structural representation of the rotating-table apparatus described in this utility model embodiment；

Fig. 4 is the structural representation of the load transfer device described in this utility model embodiment.

Description of reference numerals:

100, power set, 200, actuating device, 300, rotating-table apparatus, 310, chamber is installed, 312, Slip chamber, 320, support seat, 330, rotating shaft, 332, the shaft shoulder, 340, turntable body, 350, rotating disk Lid, 360, transmission connection piece, 370, hold-down mechanism, 372, fitting, the 374, first elastic press part, 380, the second elastic press part, 400, pulling device, 420, pull mechanism, 422, weight member, 424, Guide, 426, drawing article, 500, load transfer device, 520, drag link mechanism, the 540, first leverage, 542, the first lever piece, the 544, first force rod member, the 546, first bearing, the 560, second leverage, 562, the second lever piece, the 564, second force rod member, the 566, second bearing, 600, lattice retaining device, 620, Lattice block piece, 700a, the first force transducer, 700b, the second force transducer, 800a, the first level indicator, 800b, First regulating part, 900a, the second level indicator, 900b, the second regulating part.

Detailed description of the invention

Below embodiment of the present utility model is described in detail:

As shown in Figures 1 to 4, a kind of drum reaction brake test bench dynamic calibration apparatus, including arranging Actuating device 200 that power set 100 on workbench are connected with described power set 100, it is provided with peace It behave affectedly the rotating-table apparatus 300 of room 310, the pulling device 400 being arranged in described installation chamber 310 and institute State the load transfer device 500 that pulling device 400 connects；

Described load transfer device 500 include the drag link mechanism 520 with the clamping of described rotating-table apparatus 300, for inspection Revolver verifying attachment or the right wheel verifying attachment of testing platform connect the first leverage with Transfer Standards brake force 540 and for being connected with right wheel verifying attachment or the revolver verifying attachment of check-out console with Transfer Standards brake force Second leverage 560, described first leverage 540 and described second leverage 560 all draw with described Linkage 520 is rotationally connected and is synchronized with the movement.

In the present embodiment, described power set 100 include controller and the servomotor being electrically connected to each other, Thus can guarantee that servomotor has the most variable rotating speed under pre-set programs by controller, thus come Different brake force sizes is provided, improves (the drum reaction brake test bench dynamic calibration of above-mentioned calibrating installation Writing a Chinese character in simplified form of device, following herewith) measurement scope and precision.Meanwhile, described actuating device 200 is belt Wheel mechanism, the output shaft of servomotor is connected with pulley mechanism, to realize transmission power, pulley mechanism The most also fixing with described rotating-table apparatus 300 is connected so that it rotates, not only stable drive, transmission efficiency height, And use cost is low, Chain conveyer, gear drive etc. can also be used the most in other embodiments.When described When rotating-table apparatus 300 persistently rotates, the described pulling device 400 being arranged in described installation chamber 310 can Move under the effect of centrifugal force (i.e. for the standard brake force of calibration), thus pull described drag link mechanism 520, the most drop-down described first leverage 540 of the most described drag link mechanism 520 and described second Lever machine Structure 560.By leverage, standard brake force is passed to check-out console, the measurement of last comparison test platform Value and standard value can complete calibration operation.

During real work, calibrating installation should be stably mounted at the top of drum reaction brake test bench, And ensure described first leverage 540 and described second leverage 560 respectively with revolver verifying attachment and The force measuring machine of right wheel verifying attachment is rigidly connected, to guarantee that the standard brake force of calibrating installation can be effective Pass to drum reaction brake test bench, it is ensured that the reliable and high-precision high-efficiency of calibration result of calibration process. Owing to drum reaction brake test bench is when calibration, servomotor is constantly in duty, and mutually powered-down Examining system also runs under normal detection pattern, and the most above-mentioned calibrating installation can realize drum reaction type system Dynamic check-out console in working order under dynamic calibration, and above-mentioned measurement process synthesis systematic error, dynamically special Property and the impact of vehicle circuit etc. so that calibration accuracy is high, calibration result reliability increases, additionally, the most real Show the left and right synchronous detecting brake force taking turns brake inspection device, can to take turns brake-force balance poor to left and right Calibrate Deng key parameter, improve the comprehensive of calibration and reliability.

Further, described rotating-table apparatus 300 includes the support seat 320 that is arranged on workbench and described Support the rotating shaft 330 that seat 320 is connected, the turntable body being set in described rotating shaft 330 and cooperating 340 and disk cover 350 and equal with described rotating shaft 330, described disk cover 350 and described drag link mechanism 520 The transmission connection piece 360 connected, forms described installation between described turntable body 340 and described disk cover 350 Chamber 310, described pulling device 400 includes that at least two being arranged in described installation chamber 310 pulls machine Structure 420, two described pulling mechanisms 420 are all connected with described transmission connection piece 360.

Wherein, described rotating-table apparatus 300 includes the described turntable body 340 that is mutually matched and described disk cover 350, fixing by bolt or screw assembling after both splits, the cavity between both is described simultaneously Chamber 310 is installed.Additionally, described turntable body 340 and described disk cover 350 all offer in center Through hole, it is interior to complete assembling, the bottom of the most described turntable body 340 that described rotating shaft 330 is arranged in through hole Being positioned over the shaft shoulder 332 of described rotating shaft 330 and be fixed in described rotating shaft 330 by flat key, top is passed through Bolt is locked with the Screw assembly of described rotating shaft 330, preferably employs double bolt superposition in the present embodiment Use, therefore ensure that described rotating disk is firm fixing when high-speed rotation, it is to avoid axial displacement occurs.

Additionally, described transmission connection piece 360 is flange, while flange and the clamping of described disk cover 350 also It is connected by flat key is fixing with described rotating shaft 330, and in matched in clearance, to avoid both when being mutually shifted Produce frictionally damage；Described drag link mechanism 520 includes pull bar, the movable pulley being connected with pull bar, and installs around Steel wire rope on movable pulley, steel wire rope two ends respectively with described first leverage 540 and described second thick stick Linkage 560 connects, thus realizes passing to brake force equably left and right taking turns brake unit.Flange With pull bar clamping while of the other end, it is achieved in described drag link mechanism 520 and the company of described pulling device 400 Connect.Above-mentioned pulling mechanism 420, when described rotating-table apparatus 300 rotates, can move under centrifugal action Dynamic, thus described flange is produced drag force, so that pull bar moves down thus drives described first Lever machine Structure 540 and described second leverage 560 action.Said mechanism connected mode is simple and reliable, compact conformation, Functional reliability is high.Described support seat 320 includes that a shell, described rotating shaft 330 are arranged in described seat shell, and It is provided with bearing, it can be ensured that both relatively rotate is smooth, flat between described rotating shaft 330 and described seat shell Surely, reduce fretting wear between the two simultaneously.

As it is shown on figure 3, above-mentioned drum reaction brake test bench dynamic calibration apparatus also includes being arranged at described Installing the lattice retaining device 600 in chamber 310, described lattice retaining device 600 includes that at least three is along described rotating disk originally The lattice block piece 620 that the circumference of body 340 is evenly arranged, described installation chamber 310 is by three described lattice block pieces 620 are divided into three slip chambers 312, and the described quantity pulling mechanism 420 is three, three described pullings In mechanism 420 is arranged at three described slip chambers 312 the most correspondingly and all it is in transmission connection with described Part 360 connects.

The most preferred described lattice block piece 620 is baffle plate, and the quantity of baffle plate is 8, corresponding Described installation chamber 310 kept off into 8 described slip chambers 312 by lattice, and the described number pulling mechanism 420 Amount is also 8, and 8 described pulling mechanisms 420 are evenly arranged in described turntable body 340, so that Described drag link mechanism 520 when pulled can uniform force.Owing to above-mentioned turntable body 340 is circular, by What this can draw described slip chamber 312 without doubt is shaped as sector, thus can pass through gradual change chi Very little realization is to described pulling mechanism 420, and the most described weight member 422 plays position-limiting action.

Further, described pulling mechanism 420 includes weight member 422, is fixed in described turntable body 340 Guide 424 and around being loaded on described guide 424 and with described weight member 422 and described transmission even The drawing article 426 that fitting 360 is all connected with.Described weight member 422 is the mass with constant weight, and should The shape of mass uses the sector that described slip chamber 312 matches, and described guide 424 is pulley, Described drawing article 426 is steel wire rope, and one end of steel wire rope is connected with the bottom of flange, the other end and mass Connecting, steel wire rope is around being loaded on pulley simultaneously.Mass is driven in described slip chamber 312 side by centrifugal force Under the constraint of wall, the direction to the center of circle away from described turntable body 340 is moved, and it is right to be realized by steel wire rope The drop-down effect of flange.Preferably it is provided with at the position that described turntable body 340 contacts with mass simultaneously Sliding plate, the surface of floral disc is provided with arc convex structure, thus can reduce the contact area between mass, To reduce frictional force, it is simple to the movement of mass.Pulley can play good guide effect, so that method Blue stable movement, preferred flange is simultaneously by the lower pulling force effect in 8 directions, and stress more equalizes, and This bindiny mechanism's simple in construction, reliable operation.

It is provided with hold-down mechanism 370 additionally, also compress between described turntable body 340 and described weight member 422, Described hold-down mechanism 370 includes that fitting 372 and the first elasticity being set on described fitting 372 compress Part 374.Preferably, offering installing hole in described turntable body 340, described hold-down mechanism 370 is arranged Location is realized in installing hole.When the resting state of inoperative, the pressure of the described first elastic press part 374 Tight effect, can make mass fit tightly on the sidewall of described slip chamber 312, it is to avoid mass The most mobile, improve stability and the compactness of assembling structure.Under the influence of centrifugal force, described fitting 372 compress to the edge of turntable body 340, leave described weight member 422, thus operationally eliminate institute State fitting 372 and described weight member 422 produced the impact of standard brake force, also avoid simultaneously mass with There is sharp impacts between described turntable body 340, not only produce noise, it is also possible to producing damages affects the longevity Life.

Further, described rotating-table apparatus 300 also includes the second elastic press part 380, and described rotating shaft 330 sets The shaft shoulder 332, the described second elastic press part 380 is had to be set in described rotating shaft 330 and compress and be arranged at institute State between transmission connection piece 360 and the described shaft shoulder 332.In the present embodiment, the described second elastic press part 380 Junction for spring, flange and described disk cover 350 reserves the space of certain length, so that flange is upper Lower mobile time avoid interfering with described disk cover 350.Additionally, between flange and the described shaft shoulder 332 Spring is set, the excessive sag of flange can be avoided, it is achieved the tension to steel wire rope, it is ensured that steel wire rope is reliable Around being loaded on pulley, it is to avoid depart from make pulling mechanism 420 operational failure.

Described first leverage 540 includes the first lever piece 542, is all rotationally connected with the first lever piece 542 The first force rod member 544 and the first bearing 546, described first bearing 546 is arranged at described first force application rod Part 544 side is also located remotely from one end of described drag link mechanism 520, and described second leverage 560 includes Second lever piece 562, second be all rotationally connected with described second lever piece 562 force rod member 564 and second Bearing 566, described second bearing 566 is arranged at described second force rod member 564 side and is located close to described One end of drag link mechanism 520.Pulling force and two kinds of brake force of pressure can be realized by above-mentioned arrangement simultaneously Calibration, thus realize the left and right calibration taking turns brake-force balance difference parameter, improve the school of calibrating installation Quasi-range, reliable to guarantee the calibration result of drum reaction brake test bench.

As shown in Figure 4, further, above-mentioned drum reaction brake test bench dynamic calibration apparatus also includes First force transducer 700a and the second force transducer 700b, described first force transducer 700a are arranged at described On first force rod member 544, described second force transducer 700b is arranged on described second force rod member 564. Can realize knowing school accurately by described first force transducer 700a and described second force transducer 700b The brake force size of standard apparatus output, improves calibration accuracy, described first force transducer 700a and described second Force transducer 700b is all electrically connected with computer, can be that operator reacts the big of brake force the most intuitively Little, conveniently it is adjusted operation.

Additionally, above-mentioned drum reaction brake test bench dynamic calibration apparatus also include the first level indicator 800a, And it is arranged at the first regulating part 800b on described first force rod member 544, the second level indicator 900a and setting Being placed in the second regulating part 900b on described second force rod member 564, described first level indicator 800a is arranged at On described first lever piece 542, described second level indicator 900a is arranged on described second lever piece 562. Above-mentioned first regulating part 800b and the second regulating part 900b is adjusting nut, by described first level indicator 800a and the detection of described second level indicator 900a and the regulation role of correcting of adjusting nut, it can be ensured that in school Before standard apparatus is connected work with check-out console, observes and adjust described first lever piece 542 and described second lever Part 562 is in level, it is ensured that calibration result reliable.

Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, the most right The all possible combination of each technical characteristic in above-described embodiment is all described, but, if these skills There is not contradiction in the combination of art feature, is all considered to be the scope that this specification is recorded.

Embodiment described above only have expressed several embodiments of the present utility model, its describe more concrete and In detail, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that, it is right For those of ordinary skill in the art, without departing from the concept of the premise utility, it is also possible to do Going out some deformation and improvement, these broadly fall into protection domain of the present utility model.Therefore, this utility model is special The protection domain of profit should be as the criterion with claims.

Claims (9)

1. a drum reaction brake test bench dynamic calibration apparatus, it is characterized in that, the actuating device that is connected with described power set including the power set being arranged on workbench, be provided with and the rotating-table apparatus of chamber is installed, is arranged at the load transfer device that the indoor pulling device of described installation cavity is connected with described pulling device；

Described load transfer device includes the drag link mechanism with described rotating-table apparatus clamping, for being connected the first leverage with Transfer Standards brake force with the revolver verifying attachment or right wheel verifying attachment of check-out console and being all rotationally connected with described drag link mechanism for being connected the second leverage with Transfer Standards brake force, described first leverage and described second leverage with the right wheel verifying attachment or revolver verifying attachment of check-out console and be synchronized with the movement.

Drum reaction brake test bench dynamic calibration apparatus the most according to claim 1, it is characterized in that, described rotating-table apparatus includes the support seat being arranged on workbench, the rotating shaft being connected with described support seat, the turntable body being set in described rotating shaft and cooperate and disk cover, and with described rotating shaft, the transmission connection piece that described disk cover and described drag link mechanism are all connected with, described installation chamber is formed between described turntable body and described disk cover, described pulling device includes that being arranged in the indoor at least two of described installation cavity pulls mechanism, two described pulling mechanisms are all connected with described transmission connection piece.

Drum reaction brake test bench dynamic calibration apparatus the most according to claim 2, it is characterized in that, also include being arranged at the lattice retaining device that described installation cavity is indoor, described lattice retaining device includes the lattice block piece that at least three is evenly arranged along the circumference of described turntable body, described installation chamber is divided into three slip chambers by three described lattice block pieces, the described quantity pulling mechanism is three, and three described pulling mechanisms are arranged at three described sliding cavities indoor the most correspondingly and are all connected with described transmission connection piece.

4. according to the drum reaction brake test bench dynamic calibration apparatus described in Claims 2 or 3, it is characterized in that, described pulling mechanism includes weight member, the guide being fixed in described turntable body and around the drawing article being loaded on described guide and be all connected with described weight member and described transmission connection piece.

Drum reaction brake test bench dynamic calibration apparatus the most according to claim 4, it is characterized in that, also compressing between described turntable body and described weight member and be provided with hold-down mechanism, described hold-down mechanism includes fitting and the first elastic press part being set on described fitting.

Drum reaction brake test bench dynamic calibration apparatus the most according to claim 2, it is characterized in that, described rotating-table apparatus also includes the second elastic press part, described rotating shaft is provided with the shaft shoulder, and the described second elastic press part is set in described rotating shaft and compresses and is arranged between described transmission connection piece and the described shaft shoulder.

Drum reaction brake test bench dynamic calibration apparatus the most according to claim 1, it is characterized in that, described first leverage includes the first lever piece, the first force rod member and the first bearing being all rotationally connected with the first lever piece, described first bearing is arranged at described first force rod member side and is located remotely from one end of described drag link mechanism, described second leverage includes the second lever piece, the second force rod member and the second bearing being all rotationally connected with described second lever piece, described second bearing is arranged at described second force rod member side and is located close to one end of described drag link mechanism.

Drum reaction brake test bench dynamic calibration apparatus the most according to claim 7, it is characterized in that, also including that the first force transducer and the second force transducer, described first force transducer are arranged on described first force rod member, described second force transducer is arranged on described second force rod member.

Drum reaction brake test bench dynamic calibration apparatus the most according to claim 7, it is characterized in that, also include the first level indicator and be arranged at the first regulating part on described first force rod member, second level indicator and be arranged at described second force rod member on the second regulating part, described first level indicator is arranged on described first lever piece, and described second level indicator is arranged on described second lever piece.