CN104075893A - Electric wheel comprehensive performance test bed with steering function - Google Patents
Electric wheel comprehensive performance test bed with steering function Download PDFInfo
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- CN104075893A CN104075893A CN201410257783.1A CN201410257783A CN104075893A CN 104075893 A CN104075893 A CN 104075893A CN 201410257783 A CN201410257783 A CN 201410257783A CN 104075893 A CN104075893 A CN 104075893A
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Abstract
The invention discloses an electric wheel comprehensive performance test bed with the steering function. The electric wheel comprehensive performance test bed comprises a portal frame, a main pin frame and a steering mechanism. The steering mechanism comprises a worm box, a motor, a second connection piece and a steering force sensor. One end of the worm box is provided with a first connection piece, and the other end of the worm box is provided with a rolling ball screw. The worm box of the steering mechanism is connected to the portal frame through the first connection piece in a universal mode, the motor of the steering mechanism is connected with the worm box of the steering mechanism, one end of the second connection piece is connected with a movable end of the rolling ball screw of the steering mechanism in a universal mode, the other end of the second connection piece is connected with the steering force sensor in a movable mode, and the steering force sensor is fixedly connected with the main pin frame. By means of the implement mode, the steering control is simple and stable, an accurate result obtained in a lateral load simulation test of subsequent electric wheels is facilitated, and thus research on a whole electric vehicle is facilitated.
Description
Technical field
The present invention relates to automobile technical field, relate in particular to a kind of Electric Motor Wheel comprehensive performance test bed.
Background technology
Existing Electric Motor Wheel testing table can only simulated automotive straight-line travelling operating mode, there is no Design of Steering Mechanism, completely the various true driving cycles of simulated automotive.
But vehicle is under the operating mode of actual road surface, each wheel not only vertical load can constantly change, and while turning to, certain deformation can occur wheel under the effect of side force.When the comprehensive performance test bed simulation real vehicle of Electric Motor Wheel operating mode, must to Electric Motor Wheel apply vertical load and side load with simulating vehicle the vertical and side load on true road surface, and these two load must be controlled, can change at any time.
Particularly, side direction loads dividing of dynamic load and static loading conventionally.Dynamic load can be adjusted at any time as required load in the process of test, and according to the difference of load mode, prior art side direction charger mainly adopts hydraulic loaded mode.
Wherein, hydraulic loaded mode adopts hydraulic jack directly to load along loading direction by lever, although hydraulic loaded mode to realize principle simple, control more unstablely, cause analog result error larger, and then the research of impact to whole electric vehicle.
Summary of the invention
The present invention provides a kind of Electric Motor Wheel with turning function comprehensive performance test bed for solving the problems of the technologies described above, it turns to and controls simply, stablizes, be conducive to follow-up Electric Motor Wheel side direction loading analog test and obtain more accurate result, and then contribute to the research to whole electric vehicle.
For solving the problems of the technologies described above, the invention provides a kind of Electric Motor Wheel with turning function comprehensive performance test bed, comprising: portal frame, stub frame and steering mechanism, described stub frame is for detachable Electric Motor Wheel of installing in order to test; Wherein, described steering mechanism comprises worm screw case, motor, the second web member and steering force sensor, and described worm screw case one end is provided with the first web member, the other end is provided with ball screw; The worm screw case of described steering mechanism is connected in described portal frame by described the first web member is universal, the motor of described steering mechanism is connected with the worm screw case of described steering mechanism, the movable end of described second web member one end and the ball screw of described steering mechanism is universal to be connected, the other end is connected with described steering force sensor activity, and described steering force sensor is fixedly connected with described stub frame.
Further, described the first web member comprises that one end is provided with the link of fixed hub, the first support arm, inner support and the first bearing pin, wherein, described inner support is hinged by described the first bearing pin and described the first support arm, the Z-axis of described inner support is inserted in the fixed hub of described link, the other end of described link is welded in described portal frame, and wherein, described inner support is goat's horn fork.
Further, described the second web member comprises the second support arm, the second bearing pin and cushion block, wherein, described the second support arm is hinged by the movable end of the ball screw of described the second bearing pin and described steering mechanism, and, on described steering force sensor, be welded with a fixed hub, the Z-axis of described the second support arm is inserted in the fixed hub of described steering force sensor, described cushion block two ends are fixedly connected on respectively described steering force sensor and described stub frame, wherein, described the second support arm is goat's horn fork.
Further, described testing table comprises vertical loading mechanism, and described vertical loading mechanism comprises motor, is provided with worm screw case, bidirection press connector, pull pressure sensor and the short gear of ball screw, further, described portal frame crossbeam is provided with a support, the worm screw case of described vertical loading mechanism is fixedly arranged on described support, the motor of described vertical loading mechanism is arranged on described support and is connected with the worm screw case of described vertical loading mechanism, one end that the movable end of the ball screw of described vertical loading mechanism is inserted in described bidirection press connector, the other end of described bidirection press connector connects described pull pressure sensor, described pull pressure sensor connects described short gear, described short gear rotating shaft connects described stub, described stub is connected with stub frame by bearing.
Further, described vertical loading mechanism comprises stop fork, described stop fork comprises cross one another horizon bar and vertical bar, described horizon bar is fixed on the ball screw of described vertical loading mechanism, described vertical bar is fixed on described portal frame crossbeam, wherein, limit by described vertical bar that ball screw that described horizon bar could only move and then limit described vertical loading mechanism on the length direction of described vertical bar can not rotate and can only in the vertical direction motion.
Further, described vertical loading mechanism comprises spool gear, described portal frame crossbeam is provided with another bearing, the axis of described spool gear is inserted in described another bearing and can horizontally rotates, wherein, described spool gear engages with described short gear, and described spool gear surface is provided with an angular position sensor.
Further, described vertical loading mechanism comprises angle limiter, and described angle limiter is fixedly arranged on described spool gear surface.
Further, described vertical loading mechanism comprises upper and lower stop, and described upper and lower stop is fixedly arranged on the movable end of the ball screw of described vertical loading mechanism.
Further, described testing table comprises the frame that supports described portal frame, and described testing table also comprises by the rotary drum of described frame support, torque rotary speed sensor, the first belt wheel, flywheel, clutch coupling and the second belt wheel; Wherein, described rotary drum and described the first belt wheel respectively rotating shaft are connected in described torque rotary speed sensor both sides, described the first belt wheel is connected by belt with described the second belt wheel, described clutch coupling is coupling and described the second belt wheel one side, and described flywheel shaft is connected to the side of described clutch coupling away from described the second belt wheel.
Further, described testing table also comprises the electric dynamometer by described frame support, and wherein, described electric dynamometer is coupling in the opposite side of described the second belt wheel.
The Electric Motor Wheel of embodiment of the present invention is comprehensive performance test bed: steering mechanism is by adopting motor to drive the worm screw of worm screw case, drive again turbine, drive again ball screw and then steering force is applied to the mode of Electric Motor Wheel by stub frame, it turns to controls simply, stable, be conducive to follow-up Electric Motor Wheel side direction loading analog test and obtain more accurate result, and then contribute to the research to whole electric vehicle, and, by the size of steering force sensor Real-time Obtaining side load is set, can further dynamically adjust the steering force that is applied to Electric Motor Wheel according to this side load size, more closing to reality driving operating mode.
Brief description of the drawings
Fig. 1 is the schematic diagram of the comprehensive performance test bed embodiment of Electric Motor Wheel of the present invention.
Fig. 2 is the front view of the comprehensive performance test bed embodiment of Electric Motor Wheel of the present invention.
Fig. 3 is the side view of the comprehensive performance test bed embodiment of Electric Motor Wheel of the present invention.
Fig. 4 is the front view of steering mechanism in testing table shown in Fig. 3.
Fig. 5 is the side view of steering mechanism in testing table shown in Fig. 3.
Fig. 6 is the opposite side view of the comprehensive performance test bed embodiment of Electric Motor Wheel of the present invention.
Fig. 7 is another front view of the comprehensive performance test bed embodiment of Electric Motor Wheel of the present invention.
Embodiment
Below in conjunction with drawings and embodiments, the present invention is described in detail.
The comprehensive performance test bed Electric Motor Wheel test that is mainly used in pure electric automobile of Electric Motor Wheel of embodiment of the present invention.Consult Fig. 1 and Fig. 2, this testing table comprises frame 20 and portal frame 17-8, also comprises independently one or more combination in road analogy mechanism, inertia simulation mechanism, actuating unit, vertical loading mechanism 17 and steering mechanism 18.
In full with this testing table comprise frame 20, the example that is combined as that is arranged at portal frame 17-8, road analogy mechanism, inertia simulation mechanism, actuating unit, vertical loading mechanism 17 and steering mechanism 18 in frame 20 is elaborated.
Road analogy mechanism comprises rotary drum 4, gathers torque rotary speed sensor 7 and first belt wheel 9 of rotary drum 4 Torque and speed, and rotary drum 4 and the first belt wheel 9 respectively rotating shaft are connected in torque rotary speed sensor 7 both sides.Inertia simulation mechanism comprises flywheel 13, clutch coupling 12, the second belt wheel 10.Actuating unit mainly comprises electric dynamometer 14, its can selectivity in power generation mode to carry out resistance simulation, or selectivity in motor mode to brake simulation, particularly, in the time of motor mode, it comprises electric dynamometer 14 and provides the power supply (not shown) of electric power for this electric dynamometer 14 actuating unit; In the time of power generation mode, it comprises electric dynamometer 14 and the energy-dissipating device (not shown) for power consumption dynamometer machine 14 electric energy that produces under power generation mode to actuating unit, certainly, for improving resource utilization, the energy storage devices such as available accumulator replace this energy-dissipating device.Wherein, flywheel 13 and electric dynamometer 14 respectively rotating shaft are connected in the second belt wheel 10 both sides, and clutch coupling 12 is arranged between the second belt wheel 10 and flywheel 13; Wherein, connect the first belt wheel 9 by belt and the second belt wheel 10 links into an integrated entity rotary drum mechanism and actuating unit and then realize mutual power transmission.
Particularly, road analogy mechanism also comprises clutch shaft bearing 51, the second bearing 52, the 3rd bearing 53, the 4th bearing 54, the first shaft coupling 61 and the second shaft coupling 62, wherein, rotary drum 4 rotating shafts are connected between clutch shaft bearing 51 and the second bearing 52, the first belt wheel 9 rotating shafts are connected between the 3rd bearing 53 and the 4th bearing 54, the first shaft coupling 61 and the second shaft coupling 62 are arranged at respectively torque rotary speed sensor 7 both sides, further, the first shaft coupling 61 rotating shafts are connected between the second bearing 52 and torque rotary speed sensor 7, the second shaft coupling 62 rotating shafts are connected between the 3rd bearing 54 and torque rotary speed sensor 7.And actuating unit comprises that the 5th bearing 55, the 6th bearing 56 and the 3rd shaft coupling 63, the second belt wheel 10 rotating shafts are connected between the 5th bearing 55 and the 6th bearing 56, the 3rd shaft coupling 63 rotating shafts are connected between electric dynamometer 14 and the 5th bearing 55.
Wherein, frame 20 supports fixes road analogy mechanism, inertia simulation mechanism and actuating unit, concrete, as shown in the figure, by the first to the 6th bearing (51,52,53,54,55,56) and torque rotary speed sensor 7 are arranged in frame 20, realize frame 20 support of road analogy mechanism, inertia simulation mechanism, actuating unit is fixed.
In present embodiment, set up flywheel 13 and can realize inertia simulation, inertial force when simulated automotive has acceleration.Set up electric dynamometer 14, by the utilization of the two-way mode to electric dynamometer 14, concrete, electric dynamometer 14 is in the time of power generation mode, electric dynamometer 14, as energy absorption device, carries out resistance simulation, the dynamic load form loading by electricity, suffered other various resistance sums except resistance to rolling of Electric Motor Wheel when simulated automotive travels can coordinate to realize with flywheel 13 the electrodeless adjusting of automobile inertia simultaneously; Electric dynamometer 14 is in the time of motor mode, electric dynamometer 14 drives whole testing table (comprising rotary drum 4 and flywheel 13) operation, and run to a certain operating mode by the further driving electric wheel of rotary drum 4, then stop powering to electric dynamometer 14, simulated automotive damped condition, carry out various braking simulation tests, as carried out mechanical braking, electric regenerative braking and machinery and electric feedback coupling braking simulation test.In addition, because the rated power of Electric Motor Wheel oneself motor is limited, during as simulating brake, be not enough to drive whole testing table work, and Electric Motor Wheel itself is to be tested, it is unknown needing the actual conditions of the parameters of test, and electric dynamometer 14 is known and adjustable, the motor of Electric Motor Wheel itself is not suitable for the function of alternative electric dynamometer 14 in whole testing table yet, when espespecially braking is simulated.
Further, continue to consult Fig. 1, Electric Motor Wheel comprises wheel 3, wheel hub motor 1 and brake flange 2, wherein, wheel hub motor 1 is fixed in wheel 3, brake flange 1 is arranged on wheel 3, and stub frame 15 is connected with the axletree (not shown) of wheel 3 by linear bearing (not shown).In conjunction with Electric Motor Wheel self structure characteristic, the brake flange 1 analog mechanical braking that this testing table can carry in conjunction with Electric Motor Wheel, also can carry out electric regenerative braking, carry out electric regenerative braking-mechanical braking coupled simulation test.
In concrete application implementation mode, continue to consult Fig. 1, testing table comprises the stub frame 15 of installing in order to the Electric Motor Wheel of test for detachable, stub frame 15 is arranged at rotary drum 4 tops and is movably connected on portal frame 17-8.As shown in Figure 3, for easy design, stub frame 15 can adopt inverted L shape structure, concrete, this stub frame 15 comprises interconnective roof and sidewall, wherein, the sidewall of stub frame 15 is for installation testing Electric Motor Wheel, and stub 16 is arranged on stub frame 15 and is connected by needle bearing (not shown) with this stub frame 15 simultaneously.
Further, consult in conjunction with Fig. 3-Fig. 5, testing table comprises steering mechanism 18, on the movable end of steering mechanism 18, be installed with a steering force sensor 18-9 for detection of steering force size, and, the movable end of this steering mechanism 18 is also fixedly attached to stub frame 15 by steering force sensor 18-9, this steering mechanism 18 for apply by stub frame 15 steering force to be installed on stub frame 15 Electric Motor Wheel so that drive CircOlectric to.Particularly:
Steering mechanism 18 comprises that one end is provided with the first web member, the other end and is provided with worm screw case 18-3, motor 18-1, the second web member and the steering force sensor 18-9 of ball screw 18-7; The worm screw case 18-3 of steering mechanism 18 is by the universal portal frame 17-8 that is connected in of the first web member, the motor 18-1 of steering mechanism 18 is connected with the worm screw case 18-3 of steering mechanism 18, concrete, between this motor 18-1 and worm screw case 18-3, fix relative position by a connection bracket 18-2, the movable end of second web member one end and the ball screw 18-7 of steering mechanism 18 is universal to be connected, the other end is flexibly connected with steering force sensor 18-9, and steering force sensor 18-9 is fixedly connected with the second web member.
In a concrete application implementation mode, the first web member comprises that one end is provided with the link 18-11 of fixed hub (not shown), the first support arm 18-4, inner support 18-6 and the first bearing pin 18-51, wherein, inner support 18-6 is hinged by the first bearing pin 18-51 and the first support arm 18-4, the Z-axis of inner support 18-6 is inserted in the fixed hub of link 18-11, and the other end of link 18-11 is welded in portal frame 17-8.And the second web member comprises the second support arm 18-8, the second bearing pin 18-52 and cushion block 18-10, wherein, the second support arm 18-8 is hinged by the movable end of the ball screw 18-7 of the second bearing pin 18-52 and steering mechanism 18, and, on steering force sensor 18-9, be welded with a fixed hub (not shown), the Z-axis of the second support arm 18-8 is inserted in the fixed hub of steering force sensor 18-9, and cushion block 18-10 two ends are welded in respectively steering force sensor 18-9 and stub frame 15.Inner support 18-6 and the second support arm 18-8 can select goat's horn fork, and the first support arm 18-4, the inner support 18-6 in the first web member and the first bearing pin 18-51 form gimbals structure; Movable end and the second bearing pin 18-52 of the second support arm 18-8, ball screw 18-7 in the second web member also form gimbals structure.
While turning to, the motor 18-1 of steering mechanism 18 starts (forward or reverse), drive the scroll bar (not shown) forward or reverse of worm screw case 18-3, drive again the worm gear (not shown) rotation of worm screw case 18-3, and then drive the movable end of ball screw 18-7 to move to the left or to the right, steering force is passed to stub frame 15 by the second support arm 18-8 by steering force sensor 18-9, and then stub frame 15 driving electric wheels are rotated around stub 16, wherein, the second support arm 18-8 follows the rotation of stub frame 15 and rotates in the fixed hub of steering force sensor 18-9, simultaneously, because the rotation of following of the second support arm 18-8 further drives inner support 18-6 to rotate in the fixed hub of link 18-11, realizing simulation with this turns to.Further, the size of steering force sensor 18-9 Real-time Obtaining steering force, and then in the process turning in simulation, steering force is monitored.By CircOlectric actual road test backward, can check Electric Motor Wheel turning to time point and the inner member can long-term stable operation, simultaneously also for the anti-sideslip experiment of being correlated with provides material base and condition, make the integral experiment of Electric Motor Wheel more level off to actual driving operating mode.In addition, the steering mechanism 18 of present embodiment, by adopting motor 18-1 to drive worm screw case 18-3, drive again ball screw 18-7 and then steering force is applied to the mode of Electric Motor Wheel by stub frame 15, it controls simple, stable, and the actual road test after turning to produces with the side force of friction force balance by lateral force sensors 19 Real-time Obtainings.
In another concrete application implementation mode, consult in conjunction with Fig. 6 and Fig. 7, this testing table also comprises vertical loading mechanism 17, this vertical loading mechanism 17 is connected with stub frame 15 by stub 16, so successively the transmission by stub 16, stub frame 15 by load applying to being installed in the Electric Motor Wheel of stub frame 15.Particularly, vertical loading mechanism 17 comprises motor 17-1, is provided with worm screw case 17-2, bidirection press connector 17-6, pull pressure sensor 17-7 and the bearing 17-14 of ball screw 17-4, portal frame 17-8 crossbeam is provided with a support 17-3, the worm screw case 17-2 of vertical loading mechanism 17 is fixedly arranged on support 17-3, the motor 17-1 of vertical loading mechanism 17 is arranged at support 17-3 above and is connected with the worm screw case 17-2 of vertical loading mechanism 17, one end that the movable end of the ball screw 17-4 of vertical loading mechanism 17 is inserted in bidirection press connector 17-6, the other end of bidirection press connector 17-6 connects pull pressure sensor 17-7, stub 16 one end are passed bearing 17-14 and then are connected with pull pressure sensor 17-7 rotating shaft, stub 16 other ends are connected by needle bearing with stub frame 15.
While applying vertical load, motor 17-1 starts (just or reversion), the scroll bar (not shown) that drives worm screw case 17-2 just or reverse turn, drive again the turbine rotation of worm screw case 17-2, and then drive ball screw 17-4 is upper or lower motion, pass to stub 16 by bidirection press connector 17-6, pull pressure sensor 17-7, then by stub frame 15, vertical load is applied in Electric Motor Wheel.Wherein, ball screw 17-4 moves upward, and vertical load reduces, and ball screw 17-4 moves downward, and vertical load increases.By adopting the vertical loading mechanism 17 of electronic loading vertical load, can the bob of analog electrical driving wheel in the time of road traveling, the motor internal element that test checks Electric Motor Wheel whether can be in the situation that having vibratory impulse long-term stable operation, and coordinate brake system to carry out ABS test, the series of experiments such as composite braking test, simulate the vertical load such as automotive dead weight and load-carrying in actual driving operating mode.In addition, the vertical loading mechanism 17 of present embodiment, by adopting motor 17-1 to drive worm screw case 17-2, drive again ball screw 17-4 and then vertical load is applied to the mode of Electric Motor Wheel, it controls simple, stable, make vertical loading analog reslt accurate, be conducive to the research to whole electric vehicle, and, by the size of pull pressure sensor 17-7 Real-time Obtaining vertical load is set, can further dynamically adjust the vertical load that is applied to Electric Motor Wheel, more closing to reality driving operating mode according to this vertical load size.
In conjunction with the gimbals structural design of the first web member in steering mechanism 18 above and the second web member, in the time that vertical loading mechanism 17 carries out vertical loading, along with increase or the minimizing of load, stub frame 15 can be subjected to displacement by the vertical direction, the second support arm 18-8 fixing with described stub frame 15 rotates taking the second bearing pin 18-52 as axle center, simultaneously, the rotation of following of the second support arm 18-8 in the vertical direction further drives inner support 18-6 to rotate taking the first bearing pin 18-51 as axle center, and then make the vertical loading of vertical loading mechanism 17 not affect turning to of steering mechanism 18.
Preferably, vertical loading mechanism 17 comprises stop fork 17-13, stop fork 17-13 comprises cross one another horizon bar 17-131 and vertical bar 17-132, horizon bar 17-131 is fixed on the ball screw 17-4 of vertical loading mechanism 17, vertically bar 17-132 is fixed on portal frame 17-8 crossbeam, wherein, vertically bar 17-132 limit levels bar 17-131 can only move on the length direction of vertical bar 17-132, make the ball screw 17-4 of vertical loading mechanism 17 can not rotate and can only move upward at upper and lower, and then the movable end that ensures the ball screw 17-4 of vertical loading mechanism 17 can only move up and down, can simulate better and apply vertical load, improve the degree of accuracy of vertical load simulation (being car weight simulation) result.
Preferably, vertical loading mechanism 17 comprises spool gear 17-9 and short gear 17-10, on the crossbeam of portal frame 17-8, be also provided with a bearing 17-15, the axis of spool gear 17-9 is inserted in this bearing 17-15 and can horizontally rotates, wherein, short gear 17-10 is positioned on bearing 17-14, one end of this short gear 17-10 axis is connected with pull pressure sensor 17-7, the other end is connected with stub 16 rotating shafts, and, spool gear 17-9 engages with short gear 17-10, this spool gear 17-9 surface is installed with an angular position sensor 17-11, this angular position sensor is for gathering the steering angle of Electric Motor Wheel at Electric Motor Wheel steering procedure.In addition, by spool gear 17-9 being set and angular position sensor being fixedly arranged on to this spool gear 17-9 surface, can Electric Motor Wheel be applied on the basis of vertical load not affecting vertical loading mechanism 17, obtain the steering angle of Electric Motor Wheel.
And, in reality driving operating mode, the steering angle of Electric Motor Wheel is not infinitely-great, for simulating actual driving operating mode, also set firmly an angle limiter 17-11 on spool gear 17-9 surface, 17-11 matches with this angle limiter, for example can in the horizontal direction of portal frame 17-8 column, establish a chute (not shown), chute can be designed to be circular arc, the actual angle design that can turn over of Electric Motor Wheel when the radian of this circular arc can turn to according to electric automobile, when steering force that steering mechanism 18 applies is in the time that a series of elements are finally delivered to the Electric Motor Wheel on stub frame 15, even if this steering force is enough large, by this angle limiter 17-11, Electric Motor Wheel is defined as and can only in default rotational angle range, be rotated, with more approaching actual driving operating mode.
Preferably, vertical loading mechanism 17 comprises upper and lower stop 17-5, upper and lower stop 17-5 is fixedly arranged on the movable end of the ball screw 17-4 of vertical loading mechanism 17, certainly, for coordinating this restriction of upper and lower stop 17-5 to ball screw 17-4 movement travel, one chute (not shown) for example can be set conventionally on the column of portal frame 17-8, this chute is along the short transverse setting of portal frame 17-8 column, and, at the upper and lower two ends of this chute, one contact (not shown) is set respectively, in the time that upper and lower stop 17-5 touches contact, ball screw 17-4 stops continuing to this contact direction motion immediately.
In above-mentioned embodiment, preferably, stub 16 is arranged on stub frame 15, and in the time that Electric Motor Wheel is installed on stub frame 15, it is zero that this stub 16 makes stub 16 offset distances directly over this Electric Motor Wheel, and then guarantee that Electric Motor Wheel remains with the peak place of rotary drum 4 and contact, it is straight line and while turning to, this Electric Motor Wheel all can contact with the peak of rotary drum 4, can avoid because stub 16 offset distances when non-vanishing the test error that the excessive peak that makes tire depart from rotary drum 4 of the steering angle of Electric Motor Wheel causes.
In sum, the testing table tool of embodiment of the present invention has the following advantages:
(1) can carry out road analogy, resistance simulation, car weight simulation, inertia simulation;
(2) braking simulation can be carried out mechanical braking, electric regenerative braking and machinery and electric feedback coupling braking simulation.
(3) steering mechanism can realize CircOlectric in actual driving operating mode to time be subject to the simulation of side force.
(4) vertical loading mechanism can realize the vertical load that Electric Motor Wheel in actual driving operating mode is subject to deadweight and load-carrying etc. and simulates.
(5) by above-mentioned (1), (2), (3) and (4), can realize biaxial loadings simulation test, inertia simulation and braking simulation to Electric Motor Wheel simultaneously, the meaning of its testing table is only greater than (1), (2), (3) or (4) the single situation of existing, more be close to actual driving operating mode, be conducive to improve the accuracy of test findings.
These are only embodiments of the present invention; not thereby limit the scope of the claims of the present invention; every equivalent structure or conversion of equivalent flow process that utilizes instructions of the present invention and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. an Electric Motor Wheel with turning function is comprehensive performance test bed, it is characterized in that, comprising:
Portal frame, stub frame and steering mechanism, described stub frame is for detachable Electric Motor Wheel of installing in order to test;
Wherein, described steering mechanism comprises worm screw case, motor, the second web member and steering force sensor, and described worm screw case one end is provided with the first web member, the other end is provided with ball screw;
The worm screw case of described steering mechanism is connected in described portal frame by described the first web member is universal, the motor of described steering mechanism is connected with the worm screw case of described steering mechanism, the movable end of described second web member one end and the ball screw of described steering mechanism is universal to be connected, the other end is connected with described steering force sensor activity, and described steering force sensor is fixedly connected with described stub frame.
2. Electric Motor Wheel according to claim 1 is comprehensive performance test bed, it is characterized in that:
Described the first web member comprises that one end is provided with the link of fixed hub, the first support arm, inner support and the first bearing pin, wherein, described inner support is hinged by described the first bearing pin and described the first support arm, the Z-axis of described inner support is inserted in the fixed hub of described link, the other end of described link is welded in described portal frame, wherein, described inner support is goat's horn fork.
3. Electric Motor Wheel according to claim 1 is comprehensive performance test bed, it is characterized in that:
Described the second web member comprises the second support arm, the second bearing pin and cushion block, wherein, described the second support arm is hinged by the movable end of the ball screw of described the second bearing pin and described steering mechanism, and, on described steering force sensor, be welded with a fixed hub, the Z-axis of described the second support arm is inserted in the fixed hub of described steering force sensor, and described cushion block two ends are fixedly connected on respectively described steering force sensor and described stub frame, wherein, described the second support arm is goat's horn fork.
4. comprehensive performance test bed according to the Electric Motor Wheel described in claim 1-3 any one, it is characterized in that:
Described testing table comprises vertical loading mechanism, and described vertical loading mechanism comprises motor, is provided with worm screw case, bidirection press connector, pull pressure sensor and the short gear of ball screw;
Further, described portal frame crossbeam is provided with a support, the worm screw case of described vertical loading mechanism is fixedly arranged on described support, the motor of described vertical loading mechanism is arranged on described support and is connected with the worm screw case of described vertical loading mechanism, one end that the movable end of the ball screw of described vertical loading mechanism is inserted in described bidirection press connector, the other end of described bidirection press connector connects described pull pressure sensor, described pull pressure sensor connects described short gear, described short gear rotating shaft connects described stub, described stub is connected with stub frame by bearing.
5. Electric Motor Wheel according to claim 4 is comprehensive performance test bed, it is characterized in that:
Described vertical loading mechanism comprises stop fork, described stop fork comprises cross one another horizon bar and vertical bar, described horizon bar is fixed on the ball screw of described vertical loading mechanism, described vertical bar is fixed on described portal frame crossbeam, wherein, limit by described vertical bar that ball screw that described horizon bar could only move and then limit described vertical loading mechanism on the length direction of described vertical bar can not rotate and can only in the vertical direction motion.
6. Electric Motor Wheel according to claim 4 is comprehensive performance test bed, it is characterized in that:
Described vertical loading mechanism comprises spool gear, and described portal frame crossbeam is provided with another bearing, and the axis of described spool gear is inserted in described another bearing and can horizontally rotates, wherein, described spool gear engages with described short gear, and described spool gear surface is provided with an angular position sensor.
7. Electric Motor Wheel according to claim 6 is comprehensive performance test bed, it is characterized in that:
Described vertical loading mechanism comprises angle limiter, and described angle limiter is fixedly arranged on described spool gear surface.
8. Electric Motor Wheel according to claim 4 is comprehensive performance test bed, it is characterized in that:
Described vertical loading mechanism comprises upper and lower stop, and described upper and lower stop is fixedly arranged on the movable end of the ball screw of described vertical loading mechanism.
9. Electric Motor Wheel according to claim 1 is comprehensive performance test bed, it is characterized in that:
Described testing table comprises the frame that supports described portal frame, and described testing table also comprises by the rotary drum of described frame support, torque rotary speed sensor, the first belt wheel, flywheel, clutch coupling and the second belt wheel;
Wherein, described rotary drum and described the first belt wheel respectively rotating shaft are connected in described torque rotary speed sensor both sides, described the first belt wheel is connected by belt with described the second belt wheel, described clutch coupling is coupling and described the second belt wheel one side, and described flywheel shaft is connected to the side of described clutch coupling away from described the second belt wheel.
10. Electric Motor Wheel according to claim 9 is comprehensive performance test bed, it is characterized in that:
Described testing table also comprises the electric dynamometer by described frame support, and wherein, described electric dynamometer is coupling in the opposite side of described the second belt wheel.
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| CN104535341A (en) * | 2015-01-23 | 2015-04-22 | 山东交通学院 | Multifunctional wheel tester |
| WO2015188584A1 (en) * | 2014-06-11 | 2015-12-17 | 深圳职业技术学院 | Electric wheel test bed |
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Application publication date: 20141001 Assignee: Shenzhen Haisi Enterprise Management Co.,Ltd. Assignor: SHENZHEN POLYTECHNIC Contract record no.: X2023980053769 Denomination of invention: A comprehensive performance test bench for electric wheels with steering function Granted publication date: 20170104 License type: Common License Record date: 20231225 |
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