CN100416140C

CN100416140C - Self-adaptive torque and rotation rate transmission sensing device for speed changing gear

Info

Publication number: CN100416140C
Application number: CNB2005100573733A
Authority: CN
Inventors: 薛荣生; 刘伟
Original assignee: Southwest University
Current assignee: Southwest University
Priority date: 2005-11-09
Filing date: 2005-11-09
Publication date: 2008-09-03
Anticipated expiration: 2025-11-09
Also published as: CN1963267A

Abstract

The self adaptable torque and rotating speed drive sensor for transmissions comprise an output shaft on the transmission case, with a barrel cased outside the outside shaft on the transmission case, the driven gear matching with the shaft barrel which connects with the output shaft through elastic self alignment coupler, which is made of the No.1 half coupler matching with the right end of the shaft barrel, the No.2 half coupler matching with the right of the output shaft, the rolling block between the No.1 and No.2 half couplers, the No.1 and No.2 spring base and the spring components between them. On the transmission case, there is a displacement device and a speed sensing component. Compact in structure, this invention synchronically inspects the torque and speed signal while directly participating in the drive, with accurate signals acquired. It provides the most reliable basis for the controller of following vehicles or machines to make right judgment other than the self adaptation feature.

Description

Self-adapting torque of speed changer, sensor assembly of rotating speed transmission

Technical field

The present invention relates to the additional device of retarder, be specifically related to self-adapting torque of speed changer, the sensor assembly of rotating speed transmission of vehicle or machinery equipment.

Background technique

Moment of torsion and change in rotational speed are the important informations of vehicle and machinery equipment operation conditions, and therefore, the detection of moment of torsion and speed is the important content of vehicle and machinery equipment product development, quality testing, optimization control, monitoring of working condition and fault diagnosis.Can select for use the existing a lot of mature technique of the detection of speed,, be used for specific occasions, also have deficiency separately though the torque sensor that differs from one another has also been developed in the detection of moment of torsion.Common torque sensor has strain type torque sensor, magnetoelasticity type torque sensor, rotation angle type torque sensor and other type torque sensor.These torque sensors all can not be participated in transmission directly, and therefore, the accuracy and the reliability of testing result are relatively poor.Sensor and transmission part are combined together, and in participating in the process of transmission directly, synchronously automatic transmitting torque and velocity variations information are the trend of moment of torsion and velocity pick-up technical development.

Summary of the invention

The purpose of this invention is to provide a kind of self-adapting torque of speed changer, sensor assembly of rotating speed transmission, it is as the constituent element of transmission part, can in participating in the process of transmission directly, detect moment of torsion and rotating speed synchronously, for realizing that artificial-intelligent control provides in time, accurate data, reach distributing rationally between rotating speed, moment of torsion, the output power, guarantee that vehicle or machinery equipment operate in the optimum state.

Self-adapting torque of speed changer of the present invention, sensor assembly of rotating speed transmission, comprise the output shaft that is located on the mission case, it is characterized in that: on mission case, be provided with a beam barrel that is enclosed within the output shaft outside, the two ends of beam barrel cooperate with clutch shaft bearing, second bearing respectively, spline fitted on driven tooth wheels and the beam barrel, beam barrel is connected with output shaft by elasticity self-alignment formula coupling;

Elasticity self-alignment formula coupling, by first half-coupling that connects with the spline fitted of beam barrel right-hand member, with second half-coupling of output shaft right part spline fitted, be located at rolling element between the corresponding tilt waveform chute of first half-coupling and second half-coupling, first spring seat, second spring seat, the spring assembly that is located between first spring seat and second spring seat forms;

On mission case, be provided with the displacement sensor mechanism that cooperates with first spring seat of elasticity self-alignment formula coupling; Displacement sensor mechanism comprises the bearing that is fixedly connected on the mission case, displacement bearing, plane bearing, sensing head, return spring and the displacement transducer that is engaged in the bearing right-hand member; Groove on the displacement bearing outside collar cooperates with the flange of first spring seat; Corresponding or the contact of the gauge head of sensing head and displacement transducer; The transfer wire of displacement transducer is drawn from mission case, is connected with controller.

The corresponding position of second spring seat at mission case and elasticity self-alignment formula coupling is provided with the velocity pick-up element; The velocity pick-up element comprises the magnet steel that is located at the second spring seat edge, is located on the reduction case and the velocity transducer corresponding with magnet steel, and the transfer wire of velocity transducer is drawn from mission case, is connected with controller.

The rolling element that is located between the corresponding chute of first half-coupling and second half-coupling is a steel ball.The spring assembly that is located between first spring seat and second spring seat is the above belleville spring of a slice.

Described self-adapting torque of speed changer, sensor assembly of rotating speed transmission, its displacement transducer are hall displacement transducer, perhaps are electric vortex type displacement sensor or for differential transformer displacement transducer.

Advantage of the present invention is: compact structure has made full use of the space in the mission case; When participating in transmission directly, detect moment of torsion and rate signal synchronously, the signal that obtains is accurate; Make for follow-up vehicle or machinery equipment controller and to judge accurately the most reliable basis is provided, can control the power output of motor in good time, make the operation conditions of engine speed, output power or moment of torsion and vehicle or machinery equipment be in the optimum Match state all the time, reach energy-efficient purpose; Also have mechanical adaptive characteristics.

Description of drawings

Fig. 1 is the structural representation of first form of the present invention (displacement sensor mechanism adopts Hall displacement transducer).

Fig. 2 is the A-A sectional view of Fig. 1.

Fig. 3 is the structural representation of first half-coupling.

Fig. 4 is that the tilt waveform chute on first half-coupling launches schematic representation.

Fig. 5 is the structural representation of second half-coupling.

Fig. 6 is that the tilt waveform chute on second half-coupling launches schematic representation.

Fig. 7 is the schematic representation that first half-coupling, steel ball and second half-coupling cooperate.

Fig. 8 is that steel ball is contained in the expansion schematic representation between first half-coupling and the second half-coupling tilt waveform chute.

Fig. 9 is the structural representation of second form of the present invention (displacement sensor mechanism adopts the electric vortex type displacement sensor).

Figure 10 is the structural representation of the 3rd form of the present invention (displacement sensor mechanism adopts differential transformer displacement transducer).

Embodiment

Embodiment one: referring to Fig. 1 to Fig. 8, driven tooth wheels 5 are contained on the beam barrel 2, with the spline fitted on the beam barrel, beam barrel 2 is enclosed within the outside of output shaft 1, two ends respectively be located at mission case 20 on clutch shaft bearing 3, second bearing 4 cooperate;

First half-coupling 6 of elasticity self-alignment formula coupling is connected with the spline fitted of beam barrel 2 right-hand members, second half-coupling 7 is connected with output shaft 1 right part spline fitted, a plurality of steel ball, and promptly rolling element 8 is contained between the tilt waveform chute of first half-coupling and the second half-coupling correspondence; First spring seat 9, second spring seat 10 are contained on the output shaft 1, first spring seat 9 and second half-coupling 7 are close to, with six belleville springs, promptly spring assembly 11 is contained between first spring seat and second spring seat, and beam barrel 2 is connected with output shaft 1 by elasticity self-alignment formula coupling.

The bearing 12 of displacement sensor mechanism is fixedly connected on the mission case 20, displacement bearing 13, plane bearing 14, sensing head 15 are contained in the right-hand member of bearing, Hall displacement transducer 17 is contained on the mission case 20, and corresponding with sensing head 15, return spring 16 is contained between sensing head 15 and the Hall displacement transducer 17; Groove on displacement bearing 13 outer collar cooperates with the flange of first spring seat 9; Sensing head 15 is corresponding with the gauge head of Hall displacement transducer 17; The transfer wire of Hall displacement transducer 17 is drawn from mission case, is connected with controller.

Velocity pick-up element magnet steel 18 is contained in the edge of second spring seat 10, and velocity transducer 19 is contained on the mission case 20, and corresponding with magnet steel 18, and the transfer wire of velocity transducer is drawn from mission case, is connected with controller.

Input shaft 21 is by the driving tooth wheels 22 on it, moment of torsion is passed to center tooth wheels 24 on the jack shaft 23, center tooth wheels 24 pass to driven tooth wheels 5 with moment of torsion, driven tooth wheels 5 drive beam barrel 2 rotations, first half-coupling 6 that is contained in beam barrel 2 right-hand members rotates thereupon, with the also rotation thereupon of second half-coupling 7 that first half-coupling 6 is connected, second half-coupling 7 promptly drives output shaft 1 rotation that is mated.When the moment of torsion of output and vehicle or machinery equipment actual load are complementary, first half-coupling is consistent with the second half-coupling rotating speed, rotation does not produce slip between its opposing inclined waveform chute synchronously, and first spring seat of being close to second half-coupling 79 does not produce displacement; When the moment of torsion of output and vehicle or machinery equipment actual load are not complementary, first half-coupling and the second half-coupling rotating speed are inconsistent, rotate asynchronous, produce between its opposing inclined waveform chute and slide, first spring seat of being close to second half-coupling 79 produces displacement, and the sensing head that drives displacement sensor mechanism moves right, displacement signal is passed to Hall displacement transducer, what in fact this displacement signal reflected is the change in torque signal, after displacement signal that controller receives and rate signal are handled, send output power and rotating speed that motor is adjusted in instruction, make rotating speed, moment of torsion, reach between the output power and distribute rationally, guarantee that vehicle or machinery equipment operate in the optimum state.

Embodiment two: referring to Fig. 9, displacement sensor mechanism be the electric vortex type displacement sensor, all the other are identical with embodiment one.

Embodiment three: referring to Figure 10, displacement sensor mechanism be differential transformer displacement transducer, all the other are identical with embodiment one.

Claims

1. self-adapting torque of speed changer, sensor assembly of rotating speed transmission, comprise the output shaft (1) that is located on the mission case, it is characterized in that: on mission case, be provided with a beam barrel (2) that is enclosed within the output shaft outside, the two ends of beam barrel cooperate with clutch shaft bearing (3), second bearing (4) respectively, spline fitted on driven tooth wheels (5) and the beam barrel, beam barrel is connected with output shaft (1) by elasticity self-alignment formula coupling;

Elasticity self-alignment formula coupling, by first half-coupling (6) that connects with the spline fitted of beam barrel right-hand member, with second half-coupling (7) of output shaft right part spline fitted, be located at rolling element (8) between the corresponding tilt waveform chute of first half-coupling and second half-coupling, first spring seat (9), second spring seat (10), the spring assembly (11) that is located between first spring seat and second spring seat forms; First spring seat, second spring seat are contained on the output shaft, and first spring seat and second half-coupling are close to;

On mission case, be provided with the displacement sensor mechanism that cooperates with first spring seat (9) of elasticity self-alignment formula coupling; The corresponding position of second spring seat (10) at mission case and elasticity self-alignment formula coupling is provided with the velocity pick-up element.

2. self-adapting torque of speed changer according to claim 1, sensor assembly of rotating speed transmission is characterized in that: displacement sensor mechanism comprises the bearing (12) that is fixedly connected on the mission case, the displacement bearing (13) that is engaged in the bearing right-hand member, plane bearing (14), sensing head (15), return spring (16) and displacement transducer (17); Groove on displacement bearing (13) outer collar cooperates with the flange of first spring seat (9); Corresponding or the contact of the gauge head of sensing head (15) and displacement transducer (17); The transfer wire of displacement transducer (17) is drawn from mission case.

3. self-adapting torque of speed changer according to claim 1, sensor assembly of rotating speed transmission, it is characterized in that: the velocity pick-up element comprises the magnet steel (18) that is located at the second spring seat edge, is located on the reduction case and the velocity transducer (19) corresponding with magnet steel (18), and the transfer wire of velocity transducer is drawn from mission case.

4. self-adapting torque of speed changer according to claim 1, sensor assembly of rotating speed transmission is characterized in that: the rolling element (8) that is located between first half-coupling (6) and the corresponding chute of second half-coupling (7) is a steel ball.

5. self-adapting torque of speed changer according to claim 1, sensor assembly of rotating speed transmission is characterized in that: the spring assembly (11) that is located between first spring seat (9) and second spring seat (10) is the above belleville spring of a slice.

6. self-adapting torque of speed changer according to claim 2, sensor assembly of rotating speed transmission is characterized in that: displacement transducer (17) is a hall displacement transducer, perhaps is electric vortex type displacement sensor or for differential transformer displacement transducer.