CN213138911U

CN213138911U - Magnetorheological fluid rotating torsion spring force sensing feedback device

Info

Publication number: CN213138911U
Application number: CN202022294859.1U
Authority: CN
Inventors: 李琦; 黎欣昌; 邓超
Original assignee: Jiangxi Sinotech New Materials Co ltd
Current assignee: Jiangxi Sinotech New Materials Co ltd
Priority date: 2020-10-15
Filing date: 2020-10-15
Publication date: 2021-05-07
Anticipated expiration: 2030-10-15

Abstract

The utility model belongs to the technical field of automobile electric control and intelligence, in particular to a magnetorheological fluid rotating torsional spring force feedback device, aiming at the problems that the existing magnetorheological fluid rotating torsional spring force feedback device generates heat due to friction when in use, and can enter a large amount of dust in the device after long-term use, and can influence the power transmission of a worm and a worm gear if not cleaned, and further influence the force feedback of the force feedback device, the utility model provides a following proposal which comprises a mounting frame, wherein a first bearing, a corner and torque sensor, a magnet exciting coil sleeve, a second bearing and a motor are fixedly arranged on the mounting frame, a steering column is fixedly arranged on the first bearing, the magnetorheological fluid rotating torsional spring force feedback device of the utility model can discharge the generated heat and the dust entering the device in time when in use through the arrangement of fan blades, the service life of the feedback device is prolonged.

Description

Magnetorheological fluid rotating torsion spring force sensing feedback device

Technical Field

The utility model relates to an automatically controlled and intelligent technical field of car especially relates to a feedback device is felt to rotatory torsional spring force of magnetorheological suspensions.

Background

The traditional vehicle road test has the defects of high cost, long time, limited site conditions, easy accident occurrence under extreme conditions and the like, and the current mainstream trend is to adopt the automobile driving simulation system to replace the traditional vehicle road test. The mature driving simulation system can reflect the motion state, road conditions, surrounding environment and various body feeling and force feeling of the vehicle more truly, and the capital cost, the time cost and the labor cost of the vehicle road test are greatly reduced. Accurate steering wheel force feedback is indispensable, which largely determines whether the driver can make corresponding operations according to a given route or driving intention, and is crucial to driver operation decision. The traditional force sensing feedback device mainly comprises a torque motor matched with a speed reducing mechanism, wherein the torque motor directly outputs feedback torque, the size and the direction of the feedback torque need to be controlled simultaneously, and the traditional force sensing feedback device has the defects of unsmooth control, large delay and jitter, complex mechanical connecting device, easy motor blocking and the like;

the patent document with the publication number of CN108372883B discloses a force sense feedback device of a magnetorheological fluid rotating torsion spring and a use method thereof. The aligning torque and the damping torque in the magnetorheological fluid rotating torsion spring force sense feedback device are respectively controlled, the characteristics of irregularity and delay of the traditional torque motor control are eliminated, and the motor can be applied to a common direct current motor, so that the cost of the device is reduced;

however, the magnetorheological fluid rotating torsion spring force feedback device in the above patent document generates heat due to friction when in use, and a large amount of dust enters the magnetorheological fluid rotating torsion spring force feedback device after long-term use, and if the magnetorheological fluid rotating torsion spring force feedback device is not cleaned, power transmission between the worm and the worm gear is affected, and force feedback of the force feedback device is further affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the rotatory torsional spring force of magnetorheological suspensions and feeling feedback device and can be because the friction produces the heat when using, and long-term use can make its inside get into a large amount of dusts, if not clear up can influence the power transmission of worm and worm wheel, the shortcoming of feedback is felt to further influence power of feeling feedback device's power, and the rotatory torsional spring force of magnetorheological suspensions who provides feels feedback device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a force sensing feedback device of a rotary torsion spring of magnetorheological fluid comprises an installation frame, wherein a first bearing, a corner and torque sensor, an excitation coil sleeve, a second bearing and a motor are fixedly installed on the installation frame, a steering column is fixedly installed on the first bearing, one end of the steering column extends to the outside of one side of the installation frame and is fixedly connected with a steering wheel, the other end of the steering column is fixedly connected with one end of the corner and torque sensor, an inner rotor is arranged in the excitation coil sleeve, the magnetorheological fluid is arranged in the excitation coil sleeve, one end of the inner rotor extends to the outside of the excitation coil sleeve and is fixedly connected with the other end of the corner and torque sensor, the other end of the inner rotor extends to the outside of the excitation coil sleeve and is fixedly connected with a torsion spring stirring piece, a rotary rod is fixedly installed on the second bearing, a worm wheel is fixedly, the stirring piece is fixedly connected with the two torsional springs, a rotating hole is formed in the other side of the mounting rack, a fan blade shaft is installed in the rotating hole in a rotating mode, one end of the fan blade shaft extends to the outside of the other side of the mounting rack and is fixedly connected with a fan blade, and the fan blade and the worm wheel are matched with the motor.

Preferably, a worm is welded on an output shaft of the motor and meshed with the worm wheel, and the worm can drive the worm wheel to rotate and reduce the speed.

Preferably, the one end of worm extends to the outside of mounting bracket and fixedly connected with gear wheel, and the outside fixed cover of worm is equipped with the third bearing, and third bearing fixed mounting is in the top of mounting bracket, and the third bearing is fixed spacingly with the worm.

Preferably, the mounting bracket is rotatably provided with a transmission rod, one end of the transmission rod extends to the outer side of the mounting bracket and is fixedly connected with a small gear, the small gear is meshed with a large gear, and the large gear can drive the small gear to rotate and increase the speed.

Preferably, the fixed cover in the outside of transfer line is equipped with first bevel gear, and the other end of flabellum axle extends to in the mounting bracket and fixedly connected with second bevel gear, and second bevel gear meshes with first bevel gear mutually, and first bevel gear can drive second bevel gear and rotate.

Compared with the prior art, the utility model has the advantages of:

(1) according to the scheme, the motor, the worm wheel, the big gear wheel and the small gear wheel are matched, so that the motor can drive the big gear wheel to rotate while driving the worm wheel to rotate through the worm, and the big gear wheel can drive the small gear wheel to rotate and increase the speed;

(2) according to the scheme, the pinion is matched with the transmission rod, the first bevel gear is matched with the second bevel gear, and the fan blade shaft is matched with the fan blade, so that the pinion can indirectly transmit torque force to the fan blade shaft, the fan blade shaft drives the fan blade to rotate, the rotating fan blade discharges heat generated by friction between the motor and the gear, dust and the like in the device are discharged, and the service life of the device is prolonged;

the utility model discloses a rotatory torsional spring force of magnetorheological suspensions feels feedback device is through setting up the flabellum for it can carry out timely discharge with the heat that produces and the dust that gets into inside when using, promotes feedback device's life.

Drawings

Fig. 1 is a schematic side view of a magnetorheological fluid rotating torsion spring force feedback device according to the present invention;

fig. 2 is a schematic view of a top view structure of the magnetorheological fluid rotating torsion spring force feedback device provided by the present invention;

fig. 3 is a schematic view of a magnetic force coil sleeve structure of the magnetorheological fluid rotating torsion spring force feedback device provided by the present invention.

In the figure: the device comprises a mounting frame 1, a first bearing 2, a corner and torque sensor 3, a field coil sleeve 4, a second bearing 5, a motor 6, a steering column 7, a steering wheel 8, an inner rotor 9, magnetorheological fluid 10, a torsion spring toggle 11, a rotating rod 12, a worm gear 13, a torsion spring 14, a leaf shaft 15, fan blades 16, a worm 17, a gear wheel 18, a third bearing 19, a transmission rod 20, a pinion 21, a first bevel gear 22 and a second bevel gear 23.

Detailed Description

The technical solutions in the embodiments will be described clearly and completely with reference to the drawings in the embodiments, and it is obvious that the described embodiments are only a part of the embodiments, but not all embodiments.

Example one

Referring to fig. 1-3, a force-sensing feedback device of a rotary torsion spring of magnetorheological fluid comprises an installation frame 1, a first bearing 2, a corner and torque sensor 3, a field coil sleeve 4, a second bearing 5 and a motor 6 are fixedly installed on the installation frame 1, a steering column 7 is fixedly installed on the first bearing 2, one end of the steering column 7 extends to the outside of one side of the installation frame 1 and is fixedly connected with a steering wheel 8, the other end of the steering column 7 is fixedly connected with one end of the corner and torque sensor 3, an inner rotor 9 is arranged in the field coil sleeve 4, magnetorheological fluid 10 is arranged in the field coil sleeve 4, one end of the inner rotor 9 extends to the outside of the field coil sleeve 4 and is fixedly connected with the other end of the corner and torque sensor 3, the other end of the inner rotor 9 extends to the outside of the field coil sleeve 4 and, fixed mounting has rotary rod 12 on the second bearing 5, the one end fixedly connected with worm wheel 13 of rotary rod 12, and the fixed cover in the outside of rotary rod 12 is equipped with two torsional springs 14, stir 11 and two torsional springs 14 fixed connection, rotatory hole has been seted up to the opposite side of mounting bracket 1, leaf axle 15 is installed to rotatory downthehole rotation, the one end of leaf axle 15 extends to the opposite side outside and the fixedly connected with flabellum 16 of mounting bracket 1, flabellum 16 and worm wheel 13 all cooperate with motor 6.

In this embodiment, a worm 17 is welded on an output shaft of the motor 6, the worm 17 is meshed with the worm wheel 13, and the worm 17 can drive the worm wheel 13 to rotate and reduce the speed.

In this embodiment, one end of the worm 17 extends to the outer side of the mounting frame 1 and is fixedly connected with the large gear 18, a third bearing 19 is fixedly sleeved on the outer side of the worm 17, the third bearing 19 is fixedly installed on the top of the mounting frame 1, and the worm 17 is fixed and limited by the third bearing 19.

In this embodiment, a transmission rod 20 is rotatably mounted in the mounting bracket 1, one end of the transmission rod 20 extends to the outer side of the mounting bracket 1 and is fixedly connected with a small gear 21, the small gear 21 is engaged with the large gear 18, and the large gear 18 can drive the small gear 21 to rotate and increase the speed.

In this embodiment, the outer side of the transmission rod 20 is fixedly sleeved with a first bevel gear 22, the other end of the fan blade shaft 15 extends into the mounting frame 1 and is fixedly connected with a second bevel gear 23, the second bevel gear 23 is engaged with the first bevel gear 22, and the first bevel gear 22 can drive the second bevel gear 23 to rotate.

Example two

Referring to fig. 1-3, a force-sensing feedback device of a rotary torsion spring of magnetorheological fluid comprises an installation frame 1, a first bearing 2, a corner and torque sensor 3, a field coil sleeve 4, a second bearing 5 and a motor 6 are fixedly installed on the installation frame 1 by welding, a steering column 7 is fixedly installed on the first bearing 2 by welding, one end of the steering column 7 extends to the outside of one side of the installation frame 1 and is fixedly connected with a steering wheel 8 by welding, the other end of the steering column 7 is fixedly connected with one end of the corner and torque sensor 3 by welding, an inner rotor 9 is installed in the field coil sleeve 4, magnetorheological fluid 10 is installed in the field coil sleeve 4, one end of the inner rotor 9 extends to the outside of the field coil sleeve 4 and is fixedly connected with the other end of the corner and torque sensor 3 by welding, the other end of the inner rotor 9 extends to the outside of the field coil sleeve 4 and is fixedly, fixed mounting has rotary rod 12 on second bearing 5, welded fastening is passed through to the one end of rotary rod 12 and is connected with worm wheel 13, and the outside of rotary rod 12 is equipped with two torsional springs 14 through welded fastening cover, stir 11 and pass through screw fixed connection with two torsional springs 14, rotatory hole has been seted up to the opposite side of mounting bracket 1, fan blade axle 15 is installed to rotatory downthehole rotation, fan blade axle 15's one end extends to the opposite side of mounting bracket 1 outside and through welded fastening be connected with flabellum 16, flabellum 16 and worm wheel 13 all cooperate with motor 6.

In this embodiment, one end of the worm 17 extends to the outside of the mounting bracket 1 and is fixedly connected with the large gear 18 by welding, the outside of the worm 17 is fixedly sleeved with a third bearing 19 by welding, the third bearing 19 is fixedly installed at the top of the mounting bracket 1 by welding, and the third bearing 19 fixes and limits the worm 17.

In this embodiment, a transmission rod 20 is rotatably mounted in the mounting bracket 1, one end of the transmission rod 20 extends to the outer side of the mounting bracket 1 and is fixedly connected with a small gear 21 by welding, the small gear 21 is meshed with the large gear 18, and the large gear 18 can drive the small gear 21 to rotate and increase the speed.

In this embodiment, the outer side of the transmission rod 20 is fixedly sleeved with a first bevel gear 22 by welding, the other end of the fan blade shaft 15 extends into the mounting frame 1 and is fixedly connected with a second bevel gear 23 by welding, the second bevel gear 23 is engaged with the first bevel gear 22, and the first bevel gear 22 can drive the second bevel gear 23 to rotate.

In this embodiment, when the steering wheel 8 needs to be aligned after rotating and the restoring force is insufficient, the motor 6 is started, the output shaft of the motor 6 drives the worm 17 to rotate, the worm 17 drives the worm wheel 13 to rotate, the worm wheel 13 drives the rotating rod 12 to rotate, the rotating rod 12 drives the torsion spring 14 to rotate, so as to achieve the purpose of assisting the steering wheel 8 to be aligned again, meanwhile, the worm 17 can drive the large gear 18 to rotate, the large gear 18 drives the small gear 21 to rotate and increase the speed, the small gear 21 drives the transmission rod 20 to rotate, the transmission rod 20 drives the first bevel gear 22 to rotate, the first bevel gear 22 drives the second bevel gear 23 to rotate, the second bevel gear 23 drives the fan blade shaft 15 to rotate, the fan blade shaft 15 drives the fan blade 16 to rotate, when the fan blade 16 rotates, the air flow can be generated to draw, so that the air flow can drive heat to be, the service life of the feedback device is effectively prolonged.

The above descriptions are only preferred embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to, replaced or changed.

Claims

1. A force-sensing feedback device of a rotary torsion spring of magnetorheological fluid comprises an installation rack (1) and is characterized in that a first bearing (2), a corner and torque sensor (3), a magnet exciting coil sleeve (4), a second bearing (5) and a motor (6) are fixedly installed on the installation rack (1), a steering column (7) is fixedly installed on the first bearing (2), one end of the steering column (7) extends to the outside of one side of the installation rack (1) and is fixedly connected with a steering wheel (8), the other end of the steering column (7) is fixedly connected with one end of the corner and torque sensor (3), an inner rotor (9) is arranged in the magnet exciting coil sleeve (4), magnetorheological fluid (10) is arranged in the magnet exciting coil sleeve (4), one end of the inner rotor (9) extends to the outside of the magnet exciting coil sleeve (4) and is fixedly connected with the other end of the corner and torque sensor (3), the other end of inner rotor (9) extends to the outside and the fixedly connected with torsional spring of excitation coil sleeve (4) and dials piece (11), fixed mounting has rotary rod (12) on second bearing (5), one end fixedly connected with worm wheel (13) of rotary rod (12), and the outside fixed cover of rotary rod (12) is equipped with two torsional springs (14), dial piece (11) and two torsional springs (14) fixed connection, rotatory hole has been seted up to the opposite side of mounting bracket (1), fan blade axle (15) is installed to rotatory downthehole rotation, the one end of fan blade axle (15) extends to the opposite side outside and the fixedly connected with flabellum (16) of mounting bracket (1), flabellum (16) and worm wheel (13) all cooperate with motor (6).

2. The magnetorheological fluid rotating torsion spring force feedback device according to claim 1, wherein a worm (17) is welded on an output shaft of the motor (6), and the worm (17) is meshed with the worm wheel (13).

3. The magnetorheological fluid rotating torsion spring force feedback device according to claim 2, wherein one end of the worm (17) extends to the outside of the mounting frame (1) and is fixedly connected with a gearwheel (18), a third bearing (19) is fixedly sleeved on the outside of the worm (17), and the third bearing (19) is fixedly mounted on the top of the mounting frame (1).

4. The magnetorheological fluid rotating torsion spring force feedback device according to claim 1, wherein a transmission rod (20) is rotatably mounted in the mounting frame (1), one end of the transmission rod (20) extends to the outer side of the mounting frame (1) and is fixedly connected with a small gear (21), and the small gear (21) is meshed with the large gear (18).

5. The magnetorheological fluid rotating torsion spring force feedback device according to claim 4, wherein a first bevel gear (22) is fixedly sleeved outside the transmission rod (20), the other end of the fan blade shaft (15) extends into the mounting frame (1) and is fixedly connected with a second bevel gear (23), and the second bevel gear (23) is meshed with the first bevel gear (22).