CN101762350B - Centrally-mounted motorcar chassis electricity dynamometer - Google Patents
Centrally-mounted motorcar chassis electricity dynamometer Download PDFInfo
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- CN101762350B CN101762350B CN201010000840XA CN201010000840A CN101762350B CN 101762350 B CN101762350 B CN 101762350B CN 201010000840X A CN201010000840X A CN 201010000840XA CN 201010000840 A CN201010000840 A CN 201010000840A CN 101762350 B CN101762350 B CN 101762350B
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Abstract
The invention discloses a centrally-mounted motorcar chassis electricity dynamometer which comprises a lifting mechanism. The lifting mechanism comprises a screw connected with a screw rod, and the screw is connected with a rocker by a link I; the upper end of the rocker is fixedly connected with a lateral horizontal shaft, and the lateral horizontal shaft can be installed on a stander in a rotatable mode and is fixedly connected with a side link which extends toward the middle lower part of the dynamometer; the lower end of the side link is articulated with one end of a link II, and the other end of the link II is articulated with a top plate; both sides of the top plate are respectively provided with a convex block, and the convex block is matched with a rail of the stander; the rail arches upwards to form an arch for guiding the lifting of the top plate; and the free end of the top plate is provided with a supporting roller. The invention can center motorcars accurately and quickly by adopting an automatic centering mechanism, thereby reducing the workload of testing personnel, saving test preparation time and omitting lots of small-sized parts and components, so that the structure is simple and practical.
Description
Technical field
The present invention relates to a kind of vehicle performance checkout equipment, particularly a kind of middle-size and small-size vehicle carries out the chassis dynamometer of indoor bench test.
Background technology
Road simulation dynamometer is a kind of important indoor bench test equipment, not only can carry out dynamic property to automobile by chassis dynamometer and detect, but also can measure multi-state discharge index and oil consumption etc.The function of road simulation dynamometer is by the control to load simulation and charger, replaces the road surface with drum surface, realizes all kinds of operating modes of vehicle ' are simulated.Has the advantage that the external condition of not being subjected to influences.Can under the condition that automobile does not disintegrate, detect rapidly, reflect the technology status and the usability of each mechanism of automobile, system, parts exactly.Road simulation dynamometer can be searched fault and hidden danger place, help people to take corresponding prevention and guarantee measure, guarantee that vehicle moves under good situation, thereby prolongation automotive service life, improve movement capacity, reduce production costs, reduce environmental pollution, energy savings guarantees the safe operation of vehicle.In addition, road simulation dynamometer can also combine with l-G simulation test, shortens the R﹠D cycle of automobile greatly, finds the defective in the design early, for the performance of car load provides guarantee.
Road simulation dynamometer is to be primary and foremost purpose to measure power, certainly will involve the transition form of energy so, its nucleus equipment is the measurement of power unit, one class is to convert mechanical energy to heat energy, magnetic hysteresis dynamometer machine, electric eddy current dynamometer, mechanical dynamometer machine, hydraulic dynamometer etc. are arranged, not only cause energy dissipation, but also need the configuration heat dissipation equipment.Another kind of is electric dynamometer, is equivalent to a generator, the mechanical energy of prime mover input can be converted into electric energy and feed back to electrical network, and be divided into direct current and exchange two classes, the DC generator advantage is that control is simple, shortcoming is to need periodic maintenance, the AC machine advantage is non-maintaining, and deficiency is that control is complicated.
Present road simulation dynamometer is broadly divided into two classes from structure, and a class is the side-mounted chassis dynamometer of present ubiquitous motor, and promptly the side that motor is placed on dynamometer machine drives.Because this topology layout is fairly simple, so most of road simulation dynamometer all adopts this form.Another kind of is motor middle chassis dynamometer, is about to the centre that motor is placed on dynamometer machine.This chassis dynamometer compact conformation has dwindled the volume of complete machine, for the carrying and the placement of dynamometer machine brought convenience.
Road simulation dynamometer divides by purposes and can be divided into two classes, and a class is to be purpose with the vehicle annual test, i.e. traffic control department vehicle testing line chassis dynamometer, and this dynamometer machine function is single relatively.Another kind of is to be purpose with the vehicle development, i.e. the electric dynamometer for automotive chassis that uses in enterprise and research unit.Maximum between them is not both the former only simulated roadway resistance, and the latter not only wants the simulated roadway resistance also will simulate the inertia of actual vehicle.
Current road simulation dynamometer is of a great variety, but all exists various shortcomings mostly, such as volume is excessive, measures not precisely, and cost is too high, complex structure, and no vehicle automatic centering system or center support system are loaded down with trivial details etc.
In sum, in order to improve the prior art performance and the detection level of road simulation dynamometer, we should greatly develop the higher electric dynamometer for automotive chassis of technology content, and to the structure of chassis dynamometer, function is done bigger improvement and innovation.Improve the level of road simulation dynamometer on the whole.
Summary of the invention
The present invention can make test vehicle centering and middle electric dynamometer for automotive chassis simple in structure accurately and quickly for the technical matters that exists in the solution known technology provides a kind of.
The technical scheme that the present invention takes for the technical matters that exists in the solution known technology is: a kind of middle electric dynamometer for automotive chassis, comprise frame, described central rack is fixed with support housing, the middle part of described support housing is equipped with dual-axle motor, is separately installed with cylinder on two output shafts of described dual-axle motor; Each cylinder is provided with a centering body, the centering body left-right symmetric of two cylinders; Each centering body comprises the lifting mechanism that is arranged vertically, is rotatably connected to the leading screw on the described frame with described cylinder and be arranged in both sides before and after the cylinder symmetrically; Each lifting mechanism comprises the screw that is connected with described leading screw, described screw connects rocking arm by connecting rod I, described rocking arm upper end is affixed with transverse horizontal axis, described transverse horizontal axis is installed in rotation on the described frame, be connected with the side link that extends towards this dynamometer machine middle and lower part on the described transverse horizontal axis, the end of the lower end of described side link and connecting rod II is hinged, the other end and the top board of described connecting rod II are hinged, the both sides of described top board are respectively equipped with projection, described projection matches with track on the described frame, described track upwards arches upward and is the arc that the guiding top board hoists, and the free end of described top board is equipped with back-up roller; The screw of two lifting body correspondences in each centering body is connected with described leading screw by the opposite screw thread of rotation direction respectively; The power intake of the corresponding leading screw of each centering body is connected with the output terminal of the speed reduction unit that is arranged on the described frame outside respectively, and described speed reduction unit is by motor-driven.
Described transverse horizontal axis is set to two of front and back, shared about one transverse horizontal axis that connects of per two lifting mechanisms.
Described speed reduction unit is installed in a side of described frame, and the output terminal of described speed reduction unit connects horizontal transmission shaft, and described horizontal transmission shaft connects corresponding centering body by reverse mechanism.
Be respectively equipped with the Bearning mechanism of continuous drive between the two ends of described dual-axle motor housing and the described cylinder corresponding with it, Bearning mechanism left-right symmetric, the rotational speed of the continuous drive at described dual-axle motor housing two ends is identical and sense of rotation is opposite.
The Bearning mechanism of described continuous drive comprises that the outer ring is fixed on bearing I and inner ring and the affixed bearing I I of described dual-axle motor housing in the described support housing, described bearing I and the coaxial installation of described bearing I I, and be provided with between the two and drive circle, the power intake of described driving circle is sleeved on the central axle sleeve of described cylinder, and by chain transmission or be connected with the output shaft of motor with transmission synchronously.
The housing of described dual-axle motor is provided with force cell.
Described force cell is a U.S. CE LTRON STC LOAD CELLS.
Advantage and good effect that the present invention has are: adopt automatic centering mechanism can make vehicle centering accurately and quickly, alleviate the workload of testing crew largely, saved the setup time of test, compared existing centering body, saved many small-sized parts, simple and practical; Between the end of dual-axle motor and the cylinder corresponding, be provided with the Bearning mechanism of continuous drive, can make the accuracy of test strengthen, prolong the serviceable life of dynamometer machine with it; Drive motor adopts the slow-revving dual-axle motor of high pulling torque, is assemblied in the centre position of dynamometer machine, makes compact conformation reasonable, convenience quick for installation, the floor area of having dwindled foundation ditch.
Description of drawings
Fig. 1 is a front view of the present invention;
Fig. 2 is a left view of the present invention;
Fig. 3 is a vertical view of the present invention;
Fig. 4 is the front view of the Bearning mechanism of continuous drive of the present invention;
Fig. 5 is the left view of the Bearning mechanism of continuous drive of the present invention;
Fig. 6 is the synoptic diagram of automatic centering of the present invention mechanism.
Among the figure: 1, base, 2, reverse mechanism, 3, horizontal transmission shaft, 4, screw, 5, motor, 6, dual-axle motor, 7, electric cabinet, 8, speed reduction unit, 9, motor, 10, motor output shaft, 11, cylinder, 12, leading screw, 13, back-up roller, 15, rocking arm, 16, detent, 17, drive circle, 18, chain, 19, wheel, 20, expansion set, 21, top board, 22, projection, 23, side plate, 24, support housing, 25, connecting rod I, 26, transverse horizontal axis, 27, side link, 28, connecting rod II, 29, bearing I, 30, bearing I I.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1～Fig. 6, a kind of middle electric dynamometer for automotive chassis of the present invention comprises the dynamometer machine frame, and the dynamometer machine frame comprises base 1 and side plate 23, is connected with symmetrical four side plates 23 on the base 1.Dual-axle motor 6 is installed in centre position at base 1, and 48 inches cylinders 11 all are installed on the every output shaft of dual-axle motor 6.Each cylinder 11 is equipped with a centering body, the centering body left-right symmetric of two cylinders; The housing two ends of dual-axle motor 6 are respectively equipped with the Bearning mechanism of continuous drive; This dynamometer machine also comprises brake system, fan blower, speed encoder, force cell.This dynamometer machine also is furnished with the PLC rack, power cabinet, computer control system.
The technical characterstic of mechanical part of the present invention is: 1) dual-axle motor 6 is mid-: dual-axle motor 6 is placed in the middle of the dynamometer machine, and the power of generation is spread out of by two output shafts, assembles 48 inches cylinders 11 by expansion set 20 on the every motor output shaft 21.In the present embodiment, dual-axle motor 6 adopts variable-frequency motor.Cylinder 11 on the motor output shaft 10 is used for simulated roadway.The mid-structure of this drive motor makes the complete machine axial dimension reduce, and has dwindled the foundation ditch floor area, has reduced machine-building cost and on-the-spot installation expense.2) Bearning mechanism of continuous drive: the Bearning mechanism that between the two ends of dual-axle motor 6 housings and the cylinder 11 corresponding, adds continuous drive with it, as shown in Figure 4, coaxial installation bearing I 29 and bearing I I 30 between the shell end of dual-axle motor 6 and support housing 24, bearing I I 30 is being overlapped in bearing I 29 the insides, wherein the inner ring of bearing I I 30 is fixed on the housing of dual-axle motor 6, and the outer ring of bearing I 29 is fixed in the support housing 24.Be provided with between described bearing I 29 and the described bearing I I 30 and drive circle 17, the power intake of described driving circle 17 is sleeved on the central axle sleeve of described cylinder 11, be used for the support of cylinder 11, the power intake of described driving circle 17 is connected by the output shaft of chain transmission with motor 5.Certainly, also can adopt synchronous band transmission between driving circle 17 and the motor 5.Dual-axle motor 6 just is in the state of suspending like this.Range of connection is 1.5 tons a force cell on the shell of dual-axle motor 6, and force cell is fixed on the support housing, and force cell can limit the rotation of dual-axle motor 6 housings, and can correspondingly measure the moment of torsion of dual-axle motor 6 housings output.Support housing 24 is provided with demarcates the arm mouth, can put counterweight in the end of demarcating arm by demarcating arm mouth affixed demarcation arm vertical with its output shaft on the housing of dual-axle motor 6, demarcates the verification force cell.What in the present embodiment, force cell adopted is U.S. CE LTRON STC LOAD CELLS.The Bearning mechanism of above-mentioned continuous drive, the power intake that drives circle 17 is sleeved on the central axle sleeve of cylinder 11, cylinder 11 there is supporting role, motor 5 drives the power intake rotation that drives circle 17 by chain 18, what produce between the power intake of the central axle sleeve of cylinder 11 and driving circle 17 is kinetic friction, can effectively reduce the frictional dissipation of output shaft.3) each cylinder 11 is provided with a centering body, the centering body left-right symmetric of two cylinders 11; Each centering body comprises with described cylinder 11 and being arranged vertically, be rotatably connected to the leading screw 12 on the described frame and be arranged in the lifting mechanism of both sides, cylinder 11 front and back symmetrically, each lifting mechanism comprises the screw 4 that is connected with described leading screw 12, described screw 4 connects rocking arm 15 by connecting rod I 25, the upper end of described rocking arm 15 and transverse horizontal axis 26 are affixed, described transverse horizontal axis 26 is installed in rotation on the described frame, be connected with the side link 27 that extends towards this dynamometer machine middle and lower part on the described transverse horizontal axis 26, the end of the lower end of described side link 27 and connecting rod II 28 is hinged, the other end of described connecting rod II 28 and top board 21 are hinged, the both sides of described top board 21 are respectively equipped with projection 22, described projection 22 matches with track on the described frame, described track upwards arches upward and is the arc that guiding top board 21 hoists, and the free end of described top board 21 is equipped with back-up roller 13; The screw 4 of two lifting body correspondences in each centering body is connected with described leading screw 12 by the opposite screw thread of rotation direction respectively; The power intake of the corresponding leading screw 12 of each centering body is connected with the output terminal of the speed reduction unit 8 that is arranged on the described frame outside respectively, and described speed reduction unit 8 is driven by motor 9.Transverse horizontal axis 26 can be set to two of front and back, shared about one transverse horizontal axis 26 that connects of per two lifting mechanisms.Can make the convenient control of centering body, synchronism is better, and structure is simpler.In the present embodiment, speed reduction unit 8 is installed in a side of frame, and the output terminal of speed reduction unit 8 connects horizontal transmission shaft 3, and laterally transmission shaft 3 connects corresponding centering body by reverse mechanism 2; Reverse mechanism 2 can adopt bevel gears.Because the projection of top board 21 both sides is installed on the track of framework lateral plate 23, can guarantee that four centering top boards 21 draw close to the centre simultaneously, wheel is upwards lifted.Stop after near the arrival peak, the centering top board is got back to starting point along the original route counter motion subsequently.Played the effect of centering.The reference position of centering top board 21 and final position are all controlled by travel switch.This dynamometer machine main frame front has hung an electric cabinet 7, and the electronic component of electric cabinet the inside is used to control travel switch and motor.Described electric cabinet is connected to central control system, gives central control system with the information feedback of these parts.The automatic centering mechanism power of present embodiment is provided by the motor 9 of frame one side, transmission by each group parts, allow top board 21 rotate, shift wheel 19 onto middle position, the central axis lines of central points (two wheel) that reaches two wheels and the central axis of two cylinders are positioned at the effect on the same vertical guide.By above-mentioned automatic centering mechanism, rapidly and accurately centering wheel position, reached the requirement of test.4) brake system: on two cylinders brake system has been installed all, detent 16 is the clamped-in style structure, has adopted the friction catch principle, similar disc brake.At mounting vehicle, carry out brake hard under the situation that cylinder hypervelocity or dynamometer machine break down.5) cooling system: at dynamometer machine main frame rear portion a fan blower is arranged, follow the work of dual-axle motor 6 and start working.The effect of fan blower is that dual-axle motor 6 is dispelled the heat, and ensures the normal operation of machine.
Drive motor of the present invention is an alternating-current variable frequency motor, has adopted double output shaft.Because the quality of test vehicle and cylinder all can be applied on the output shaft, the time has been grown and will cause certain damage to output shaft.So between the end of dual-axle motor 6 and cylinder, be provided with the Bearning mechanism of above-mentioned continuous drive, one side of this mechanism plays a supportive role to cylinder, an other side is connected between the shell of support housing 24 and dual-axle motor 6, meeting and cylinder 11, dual-axle motor 6 produce friction, may cause certain frictional dissipation, the Bearning mechanism of continuous drive can reduce friction effectively, has also improved the distribution of stress simultaneously.As Fig. 4, shown in 5, the Bearning mechanism of continuous drive drives bearing I 29 and bearing I I 30 rotations by motor 5 by chain 18.When cylinder 11 is static, begin to drive bearing I 29 and bearing I I 30 rotations by motor 5, when cylinder 11 rotations, motor 5 works on.Because kinetic friction is far smaller than static friction, said mechanism has reduced the damping of bearing friction pair largely.The Bearning mechanism left-right symmetric of the continuous drive at dual-axle motor housing two ends, rotational speed is identical, and direction is opposite.So just offset the influence that the bearing rotation by the Bearning mechanism of two continuous drive causes the drive motor output shaft.The another one advantage of the Bearning mechanism of continuous drive is, makes the action of gravity of cylinder can be evenly distributed on the bearing, has prolonged the serviceable life of dynamometer machine, has improved the precision of dynamometer machine.
For correct simulated roadway, ensure carrying out smoothly of test, wheel of vehicle must be placed on the cylinder accurately.The central axis that is the central axis of two wheels on the cylinder and two cylinders must be on same vertical guide.The present invention has designed the automatic centering system for the requirement of satisfying above test.As Fig. 1, Fig. 2, Fig. 3 and shown in Figure 6, each cylinder of the present invention is provided with a centering body, the centering body left-right symmetric of two cylinders; The characteristics of above-mentioned automatic centering mechanism are that power drives speed reduction units 12 by motor 9 and exports to the horizontal transmission shaft 3 of this dynamometer machine front portion, is connected with the leading screw 12 on the left side by reverse mechanism 2 then.The leading screw of dynamometer machine right part also is connected with horizontal transmission shaft 3 by reverse mechanism.Connecting screw 4 on the leading screw.Screw 4 drives the upwards upset simultaneously of four centering top boards 21.Above-mentioned centering body can make accurately centering efficiently of vehicle, has saved the setup time of experiment.Simultaneously, compare existing centering body, above-mentioned centering body has saved many small-sized parts, and is simple and practical.
The technical characterictic of electronic section of the present invention is: chassis dynamometer also disposes central control system, comprises the electric distribution cabinet, PLC rack, computer control system.The electric distribution cabinet provides power to dynamometer machine, and PLC rack and computer control system are used for the various working conditions of analyzing and processing dynamometer machine.
On dynamometer machine centre of the drum next door speed encoder is housed, above-mentioned scrambler is an optical encoder, and this optical encoder is made up of grating dish and photoelectric detection system.The grating dish is to open several slots on the plectane of certain diameter five equilibrium.Because photoelectric code disk and motor coaxle, during the motor rotation, grating dish and motor be with the speed rotation, and the pick-up unit of forming through electronic components such as light emitting diodes detects exports some pulse signals, and the umber of pulse by the record coding device just can obtain rotating speed of motor.Described speed encoder is connected to central control system, gives central control system with the information of feedback cylinder.
A force cell is installed, because the power that power that motor stator is subjected to and rotor are subjected to is a pair of reacting force, i.e. equal and opposite in direction on the dynamometer machine motor.So the moment of torsion that force cell is measured also just equals the moment of torsion of motor output.Above-mentioned force cell is connected to central control system, gives central control system with the torque information of feedback motor output.
Use when of the present invention, testing vehicle need be placed on above the cylinder of road simulation dynamometer.When placing vehicle, the cylinder of dynamometer machine must maintain static.The brake system of cylinder adopts air clamper, promptly by air pump, with brake bush cylinder is clamped.The clamping force size can regulated at will, to satisfy the vehicle of placing different quality.Brake system is connected to central control system, can control automatically by center system.
Vehicle is placed on the cylinder, is difficult to guarantee the entirely accurate of position.In order accurately to simulate in experiment, wheel need be ajusted, the process of centering.Make the central axis of wheel and the central axis of cylinder be on the same vertical guide.After driving wheel is positioned on the cylinder, the non-driving wheel of fixed vehicle, rotary drum is ajusted by driving wheel then.
The course of work of centering body of the present invention is, the power that motor 9 produces, 8 outputs are delivered to the horizontal transmission shaft 3 of dynamometer machine front portion through speed reduction unit, laterally transmission shaft 3 is delivered to the leading screw on the dynamometer machine left side and the leading screw of dynamometer machine right part by the reverse mechanism that is positioned at these dynamometer machine both sides respectively with power, the power on last both sides all drives rocking arm 15 by screw 4 and moves to the centre, and transverse horizontal axis rotates on frame.Because side link 27 is fixedlyed connected with transverse horizontal axis 26, side link 27 drives four top boards and moves up along the track on the frame.As shown in Figure 6, two top boards are equipped with back-up roller 13 with wheel 19 jack-up at the top board end, and wheel can move on back-up roller 13 under action of gravity, up to automatic arrival middle position.By above-mentioned automatic centering mechanism, aligned wheel position rapidly and accurately, reached the requirement of test.
As Fig. 4, shown in 5, before middle centrally-mounted driving drives cylinder 11 rotations, at first be that two motors 5 begin to rotate, drive bearing I 29 and bearing I I 30 rotations by chain 18.The continuous rotation of Bearning mechanism makes each position of bearing evenly be subjected to the action of gravity of test vehicle and cylinder, makes stress evenly distribute, and has effectively prolonged the serviceable life of this dynamometer machine.In addition, what produce between the power intake of the central axle sleeve of cylinder 11 and driving circle 17 is kinetic friction, and friction factor is less, has so just reduced the frictional dissipation of dynamometer machine.Two Bearning mechanism sense of rotation of the present invention are opposite, i.e. clockwise direction rotation, and then another one is rotation counterclockwise.Because the power that the bearing rotation can cause output shaft to transmit produces error, so adopted the mode of the relative opposite spin of motor.Be that one of them makes positive work, make negative work for one, so just offset two merits that the Bearning mechanism rotation is done.
In the present invention, simulate when sliding, the size of resistance under the friction speed that contrast road coasting test collects, thus obtain the resistance that needs load.Whole experiment adopts central control system to set and regulate, thereby has realized the control of road resistance simulation.All operation informations and the analog case of final dynamometer machine all reflect on computer control system.
Although in conjunction with the accompanying drawings the preferred embodiments of the present invention are described above; but the present invention is not limited to above-mentioned embodiment; above-mentioned embodiment only is schematic; be not restrictive; those of ordinary skill in the art is under enlightenment of the present invention; not breaking away under the scope situation that aim of the present invention and claim protect, can also make a lot of forms, these all belong within protection scope of the present invention.
Claims (7)
1. a middle electric dynamometer for automotive chassis comprises frame, it is characterized in that, described central rack is fixed with support housing, and the middle part of described support housing is equipped with dual-axle motor, is separately installed with cylinder on two output shafts of described dual-axle motor; Each cylinder is provided with a centering body, the centering body left-right symmetric of two cylinders; Each centering body comprises the lifting mechanism that is arranged vertically, is rotatably connected to the leading screw on the described frame with described cylinder and be arranged in both sides before and after the cylinder symmetrically; Each lifting mechanism comprises the screw that is connected with described leading screw, described screw connects rocking arm by connecting rod I, described rocking arm upper end is affixed with transverse horizontal axis, described transverse horizontal axis is installed in rotation on the described frame, be connected with the side link that extends towards this dynamometer machine middle and lower part on the described transverse horizontal axis, the end of the lower end of described side link and connecting rod II is hinged, the other end and the top board of described connecting rod II are hinged, the both sides of described top board are respectively equipped with projection, described projection matches with track on the described frame, described track upwards arches upward and is the arc that the guiding top board hoists, and the free end of described top board is equipped with back-up roller; The screw of two lifting mechanism correspondences in each centering body is connected with described leading screw by the opposite screw thread of rotation direction respectively; The power intake of the corresponding leading screw of each centering body is connected with the output terminal of the speed reduction unit that is arranged on the described frame outside respectively, and described speed reduction unit is by motor-driven.
2. middle electric dynamometer for automotive chassis according to claim 1 is characterized in that, described transverse horizontal axis is set to two of front and back, shared about one transverse horizontal axis that connects of per two lifting mechanisms.
3. middle electric dynamometer for automotive chassis according to claim 1, it is characterized in that, described speed reduction unit is installed in a side of described frame, and the output terminal of described speed reduction unit connects horizontal transmission shaft, and described horizontal transmission shaft connects corresponding centering body by reverse mechanism.
4. middle electric dynamometer for automotive chassis according to claim 1, it is characterized in that, be respectively equipped with the Bearning mechanism of continuous drive between the two ends of described dual-axle motor housing and the described cylinder corresponding with it, Bearning mechanism left-right symmetric, the rotational speed of the continuous drive at described dual-axle motor housing two ends is identical and sense of rotation is opposite.
5. middle electric dynamometer for automotive chassis according to claim 4, it is characterized in that, the Bearning mechanism of described continuous drive comprises that the outer ring is fixed on bearing I and inner ring and the affixed bearing I I of described dual-axle motor housing in the described support housing, described bearing I and the coaxial installation of described bearing I I, and be provided with between the two and drive circle, the power intake of described driving circle is sleeved on the central axle sleeve of described cylinder, and by chain transmission or be connected with the output shaft of motor with transmission synchronously.
6. middle electric dynamometer for automotive chassis according to claim 4 is characterized in that the housing of described dual-axle motor is provided with force cell.
7. middle electric dynamometer for automotive chassis according to claim 6 is characterized in that, described force cell is a U.S. CE LTRON STC LOAD CELLS.
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| CN201010000840XA CN101762350B (en) | 2010-01-19 | 2010-01-19 | Centrally-mounted motorcar chassis electricity dynamometer |
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| CN201010000840XA CN101762350B (en) | 2010-01-19 | 2010-01-19 | Centrally-mounted motorcar chassis electricity dynamometer |
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| CN107941528A (en) * | 2017-12-26 | 2018-04-20 | 郑州拽亘电子科技有限公司 | A kind of chassis dynamometer |
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| CN110082679A (en) * | 2019-05-29 | 2019-08-02 | 安徽工程大学 | A kind of electric machine experiment apparatus and its application method |
| CN111413106B (en) * | 2020-04-07 | 2022-08-02 | 万高(上海)汽车科技有限公司 | New energy automobile manufacturing chassis physical performance test system and test method |
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| JP2007093326A (en) * | 2005-09-28 | 2007-04-12 | Meidensha Corp | Car centering device for chassis dynamometer |
| CN201212854Y (en) * | 2008-01-11 | 2009-03-25 | 北京欧润特科技有限公司 | Rotary hub chassis ergograph |
| CN201583375U (en) * | 2010-01-19 | 2010-09-15 | 中国汽车技术研究中心 | Centrally-mounted automobile chassis electric dynamometer |
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| Publication number | Publication date |
|---|---|
| CN101762350A (en) | 2010-06-30 |
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