CN112498565A - Middle-arranged transmission sensing multi-plate clutch self-adaptive electric driving system - Google Patents
Middle-arranged transmission sensing multi-plate clutch self-adaptive electric driving system Download PDFInfo
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- CN112498565A CN112498565A CN202011485924.7A CN202011485924A CN112498565A CN 112498565 A CN112498565 A CN 112498565A CN 202011485924 A CN202011485924 A CN 202011485924A CN 112498565 A CN112498565 A CN 112498565A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M11/00—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels
- B62M11/04—Transmissions characterised by the use of interengaging toothed wheels or frictionally-engaging wheels of changeable ratio
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62M—RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES; POWERED PROPULSION OF SLEDGES OR SINGLE-TRACK CYCLES; TRANSMISSIONS SPECIALLY ADAPTED FOR SUCH VEHICLES
- B62M23/00—Transmissions characterised by use of other elements; Other transmissions
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Abstract
The invention discloses a central transmission sensing multi-plate clutch self-adaptive electric driving system which comprises a power mechanism, a high-speed gear transmission mechanism, a low-speed gear transmission mechanism, a transmission sensing mechanism, a main shaft and a power output sleeve synchronously and rotatably sleeved on the main shaft, wherein the transmission sensing mechanism is positioned on one side of the power output sleeve, and the power mechanism, the high-speed gear transmission mechanism and the low-speed gear transmission mechanism are positioned on the other side of the power output sleeve. By adopting the technical scheme, the actual driving working condition of the electric vehicle and the working condition of the motor can be matched in a self-adaptive manner according to the resistance condition, the efficiency of the motor under the conditions of climbing and heavy load is greatly improved, the energy consumption of the motor is reduced, and the high-low speed gear shifting and speed changing of forward gear can be automatically carried out along with the driving resistance change in a self-adaptive manner under the condition that the driving force is not cut off; and output power can be monitored in real time, active gear shifting is carried out, gear matching performance is better, and gear delay is smaller.
Description
Technical Field
The invention relates to the technical field of electric drive systems of vehicles, in particular to a central transmission sensing multi-plate clutch self-adaptive electric drive system.
Background
With the increasing strictness of environmental regulations, new energy vehicles represented by pure electric powered automobiles, two-wheeled vehicles and three-wheeled vehicles have become a great trend to replace traditional fuel vehicles. The existing two-wheeled electric vehicle generally adopts a hub motor and a motor side-hanging structure.
The wheel hub motor is directly driven by the low-speed direct current motor, so that the efficiency is relatively low, the heat productivity is large, the original balance of the wheel structure is broken due to the large size and heavy weight of the motor, and the control performance and the safety are influenced to a certain extent.
The side-hung type structure places the motor and the speed change system (gearbox or reducer) on the same side of the driving wheel, and although a high-speed motor can be adopted to improve the mechanical efficiency, the weight of the speed change mechanism and the motor is heavier, so that the balance of the wheel is poor, and the influence on the two-wheeled vehicle is more obvious.
Therefore, the applicant has designed an electric drive system with a central-positioned structure, which combines the advantages of the hub motor and the side-hung structure, makes up for the disadvantages of the hub motor and the side-hung structure, and not only can well ensure the balance of the rotating output component, but also has extremely high mechanical efficiency, less heat productivity, better heat dissipation capability and lighter weight.
However, the conventional mid-type electric drive system cannot automatically shift gears according to the resistance condition, and thus cannot adaptively match the vehicle speed output torque according to the running resistance. In order to guarantee the performance and the energy consumption of ordinary road conditions, lead to electric two wheeler not to possess powerful climbing and heavy load ability, make electric two wheeler when climbing and heavy load ability, the motor is not in high-efficient platform to the motor is not only inefficiency, and the energy consumption is too high moreover. It is urgent to solve the above problems.
Disclosure of Invention
In order to solve the technical problems, the invention provides a central transmission sensing multi-plate clutch self-adaptive electric driving system.
The technical scheme is as follows:
the utility model provides a central-positioned transmission sensing multi-disc separation and reunion self-adaptation electric drive system, includes power unit, high-speed gear drive mechanism, low-speed gear drive mechanism, transmission sensing mechanism, main shaft and synchronous rotation ground suit at the epaxial power take off cover of main shaft, its main points lie in: the transmission sensing mechanism is positioned on one side of the power output sleeve, and the power mechanism, the high-speed transmission mechanism and the low-speed transmission mechanism are positioned on the other side of the power output sleeve;
the high-speed gear transmission mechanism comprises a friction clutch and an elastic element group for applying pretightening force to the friction clutch, the friction clutch comprises an outer plate flower sleeve, an inner plate spiral roller sleeve, and outer friction plates and inner friction plates which are alternately arranged between the outer plate flower sleeve and the inner plate spiral roller sleeve, each outer friction plate can axially slide along the outer plate flower sleeve, each inner friction plate can axially slide along the inner plate spiral roller sleeve, the inner plate spiral roller sleeve is sleeved on the main shaft and forms a spiral transmission pair with the main shaft so that the inner plate spiral roller sleeve can axially slide along the main shaft, and the power mechanism can transmit power to the main shaft through the friction clutch;
the low-speed gear transmission mechanism comprises an auxiliary shaft transmission assembly and an overrunning clutch sleeved on a main shaft, one end face, close to an inner core wheel of the overrunning clutch, of an inner sheet spiral raceway sleeve is a cam profile, so that the inner core wheel and the inner core wheel form an end face cam fit together, and the power mechanism can transmit power to the auxiliary shaft transmission assembly, the overrunning clutch, the inner sheet spiral raceway sleeve and the main shaft through an outer sheet pattern sleeve in sequence.
Preferably, the method comprises the following steps: the outer friction plate and flower piece sleeve comprises a power input part, a compression fit part and a power output part which are sequentially connected, the power input part and the power output part are both in a circular ring structure, the diameter of the power input part is larger than that of the power output part, the compression fit part is in a circular disc structure, and each outer friction plate can axially slide along the inner wall of the power input part;
the inner plate spiral raceway sleeve comprises an inner plate sliding portion in a circular ring structure and a friction plate pressing portion in a circular disc structure, a spiral transmission pair is formed between the inner plate sliding portion and the main shaft, each inner friction plate can axially slide along the outer wall of the inner plate sliding portion, each outer friction plate and each inner friction plate are located between the pressing fit portion and the friction plate pressing portion, and the elastic element group is abutted to the friction plate pressing portion.
By adopting the structure, the design is ingenious, the assembly is easy, multiple functions can be realized by the inner spiral raceway sleeve and the outer flower sleeve, the number of parts is reduced, the production cost is reduced, and the reliability is improved.
Preferably, the method comprises the following steps: the power input part is matched with splines of the outer friction plates, and the inner plate sliding part is matched with the splines of the inner friction plates. By adopting the structure, the structure is simple, reliable and easy to process.
Preferably, the method comprises the following steps: the power mechanism comprises a motor and a speed reduction assembly, the speed reduction assembly comprises a first gear shaft, a second gear shaft and a speed reduction primary driven gear, the first gear shaft coaxially rotates with a motor shaft of the motor through a coupling sleeve, the second gear shaft is parallel to the first gear shaft, the speed reduction primary driven gear is sleeved on the second gear shaft in a synchronous rotating mode, a speed reduction primary driving tooth meshed with the speed reduction primary driven gear is arranged on the first gear shaft, a speed reduction secondary driving tooth is arranged on the second gear shaft, and a speed reduction secondary driven tooth meshed with the speed reduction secondary driving tooth is arranged on the power input portion. With the above configuration, the reduction gear can be stably and reliably performed.
Preferably, the method comprises the following steps: the first gear shaft and the motor shaft are inserted into the coupling sleeve and are in spline fit with the coupling sleeve. By adopting the structure, the structure is simple and reliable, the durability is good, and the processing is easy.
Preferably, the method comprises the following steps: the auxiliary shaft transmission assembly comprises an auxiliary shaft parallel to the main shaft and a low-speed primary driven gear synchronously rotatably sleeved on the auxiliary shaft, a low-speed primary driving tooth meshed with the low-speed primary driven gear is arranged on the power output part, a low-speed secondary driving tooth is arranged on the auxiliary shaft, and a low-speed secondary driven tooth meshed with the low-speed secondary driving tooth is arranged on an outer ring of the overrunning clutch. With the above configuration, the reduction gear can be stably and reliably performed.
Preferably, the method comprises the following steps: the rolling bodies distributed along the periphery of each inner core wheel are composed of thick rolling bodies and thin rolling bodies which are alternately arranged, two opposite retainers are arranged on the peripheral surface of each inner core wheel, a circle of annular groove is formed in the inner wall of each retainer, and two ends of each thin rolling body are respectively inserted into the corresponding annular grooves in a sliding mode. By adopting the structure, each thin rolling body can follow up, the overall stability and reliability are improved, and the service life is prolonged.
Preferably, the method comprises the following steps: the transmission sensing mechanism comprises a transmission sensing mounting sleeve rotatably sleeved on the main shaft, a transmission sensing cam sleeve sleeved on the transmission sensing mounting sleeve, an elastic reset element used for driving the transmission sensing cam sleeve to be close to the power output sleeve and a detection device used for detecting real-time power, a spiral transmission pair is formed between the transmission sensing cam sleeve and the transmission sensing mounting sleeve and can slide axially along the transmission sensing mounting sleeve, and the end face of one end, close to the power output sleeve, of the transmission sensing cam sleeve is a cam profile so as to jointly form end face cam matching. By adopting the structure, the real-time power can be accurately monitored, and the method is simple and reliable.
Preferably, the method comprises the following steps: the detection device comprises a rotating speed detection permanent magnet and a displacement detection permanent magnet which are both arranged on the transmission sensing cam sleeve, and a rotating speed detection Hall element and a displacement detection Hall element which are both arranged on the transmission sensing box body, wherein the rotating speed detection Hall element is matched with the rotating speed detection permanent magnet, and the displacement detection Hall element is matched with the displacement detection permanent magnet. By adopting the structure, the real-time power can be obtained by detecting the rotating speed and the displacement of the transmission sensing cam sleeve, and the device has the advantages of strong anti-interference capability, low cost, simplicity and reliability.
Preferably, the method comprises the following steps: the power output sleeve is matched with the main shaft spline, and a needle bearing is arranged between the power output sleeve and the transmission sensing installation sleeve. By adopting the structure, the stability of power output of the power output sleeve is ensured.
Compared with the prior art, the invention has the beneficial effects that:
the central transmission sensing multi-plate clutch self-adaptive electric driving system adopting the technical scheme has the advantages of novel structure, ingenious design and easy realization, not only can self-adaptively match the actual driving working condition of the electric vehicle with the working condition of the motor according to the resistance condition, and enables the electric vehicle to have strong climbing and heavy-load capacity and simultaneously to be always positioned on a high-efficiency platform, thereby greatly improving the efficiency of the motor under the climbing and heavy-load conditions, reducing the energy consumption of the motor, and being capable of self-adaptively carrying out high-low speed gear shifting and speed changing of forward gear along with the driving resistance change under the condition of not cutting off the driving force; and can real-time supervision output, shift gears initiatively, keep off the position matching better, keep off the position and postpone littleer, the structure is more simple reliable than the prior generation product simultaneously, spare part still less, and overall dimension is littleer, changes in arranging, can reduce the assembly degree of difficulty and manufacturing cost by a wide margin.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram showing the relationship between the power mechanism, the high-speed transmission mechanism, the low-speed transmission mechanism and the main shaft;
FIG. 3 is a schematic diagram of the fit relationship of the transmission sensing mechanism, the main shaft and the power take-off sleeve;
fig. 4 is a schematic structural view of the overrunning clutch.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
As shown in fig. 1, a central transmission sensing multi-plate clutch self-adaptive electric driving system mainly comprises a power mechanism, a high-speed transmission mechanism, a low-speed transmission mechanism, a transmission sensing mechanism, a main shaft 1 and a power output sleeve 2 synchronously and rotatably sleeved on the main shaft 1, wherein the transmission sensing mechanism is positioned on one side of the power output sleeve 2, and the power mechanism, the high-speed transmission mechanism and the low-speed transmission mechanism are positioned on the other side of the power output sleeve 2, so that a central structural arrangement is formed.
Referring to fig. 1 and 2, the high-speed gear transmission mechanism includes a friction clutch 5 and an elastic element set 3 for applying a pre-tightening force to the friction clutch 5, the friction clutch 5 includes an outer plate flower sleeve 5a, an inner plate helical raceway sleeve 5b, and outer friction plates 5c and inner friction plates 5d alternately arranged between the outer plate flower sleeve 5a and the inner plate helical raceway sleeve 5b, each outer friction plate 5c is capable of axially sliding along the outer plate flower sleeve 5a, each inner friction plate 5d is capable of axially sliding along the inner plate helical raceway sleeve 5b, the inner plate helical raceway sleeve 5b is sleeved on the main shaft 1 and forms a helical transmission pair with the main shaft 1, so that the inner plate helical raceway sleeve 5b is capable of axially sliding along the main shaft 1, and the power mechanism is capable of transmitting power to the main shaft 1 through the friction clutch 5 and finally outputting the power through the power output sleeve 2. Compared with the traditional disc type friction clutch, the friction clutch 5 in the embodiment is used for a long time, the abrasion conditions of the inner friction plates 5d and the outer friction plates 5c are basically consistent, the sliding friction loss is reduced, the abrasion resistance, the stability and the reliability of the friction clutch 5 are improved, and the service life of the friction clutch 5 is prolonged.
The outer friction plate sleeve 5a comprises a power input part 5a1, a press fit part 5a2 and a power output part 5a3 which are sequentially connected, the power input part 5a1 and the power output part 5a3 are both of circular ring structures, the diameter of the power input part 5a1 is larger than that of the power output part 5a3, the press fit part 5a2 is of a disc structure, and each outer friction plate 5c can axially slide along the inner wall of the power input part 5a 1.
The inner plate spiral raceway sleeve 5b comprises an inner plate sliding portion 5b1 in a circular ring structure and a friction plate pressing portion 5b2 in a circular disc structure, a spiral transmission pair is formed between the inner plate sliding portion 5b1 and the main shaft 1, each inner friction plate 5d can axially slide along the outer wall of the inner plate sliding portion 5b1, each outer friction plate 5c and each inner friction plate 5d are located between the pressing matching portion 5a2 and the friction plate pressing portion 5b2, and the elastic element group 3 is abutted to the friction plate pressing portion 5b 2.
The power input portion 5a1 is spline-engaged with the outer friction plates 5c, and the inner plate sliding portion 5b1 is spline-engaged with the inner friction plates 5 d.
The outer wall of the main shaft 1 is provided with an outer spiral raceway, a plurality of balls are arranged in the outer spiral raceway, the inner wall of the inner sheet spiral raceway sleeve 5b is provided with an inner spiral raceway matched with the outer spiral raceway, and the balls can roll in the outer spiral raceway and the inner spiral raceway so as to ensure the stability of axial sliding.
Referring to fig. 1-4, the low-speed gear transmission mechanism includes a countershaft transmission assembly and an overrunning clutch 9 sleeved on the main shaft 1, end faces of one ends, close to each other, of an inner plate spiral raceway sleeve 5b and an inner core wheel 9c of the overrunning clutch 9 are cam molded faces to jointly form end face cam cooperation, and the power mechanism can transmit power to the countershaft transmission assembly, the overrunning clutch 9, the inner plate spiral raceway sleeve 5b and the main shaft 1 in sequence through an outer plate flower sleeve 5a and finally output the power through a power output sleeve 2.
The countershaft transmission assembly comprises a countershaft 4 parallel with the main shaft 1 and a low-speed primary driven gear 6 synchronously and rotatably sleeved on the countershaft 4, a power output part 5a3 is provided with a low-speed primary driving tooth 5a4 meshed with the low-speed primary driven gear 6, the countershaft 4 is provided with a low-speed secondary driving tooth 4a, and an outer ring 9a of the overrunning clutch 9 is provided with a low-speed secondary driven tooth 9b meshed with the low-speed secondary driving tooth 4 a.
The rolling bodies distributed along the periphery of each inner core wheel 9c are composed of thick rolling bodies 9d and thin rolling bodies 9e which are alternately arranged, two opposite retainers 9f are arranged on the periphery of the inner core wheel 9c, a circle of annular groove 9f1 is formed in the inner wall of each retainer 9f, and two ends of each thin rolling body 9e are slidably inserted into the corresponding annular grooves 9f1 respectively.
The inner core wheel 9c is provided on the outer periphery thereof with external teeth 9c1 corresponding to the thick rolling elements 9d, and the number of internal splines of the inner core wheel 9c is twice the number of internal teeth 9c 1. The installation and debugging are convenient, so that the problem that the inner rings are not synchronous is solved.
The external teeth 9c1 include a top arc section 9c12, and a short side section 9c11 and a long side section 9c13 respectively located at two sides of the top arc section 9c12, the short side section 9c11 is an inwardly concave arc structure, the long side section 9c13 is an outwardly convex arc structure, and the curvature of the short side section 9c11 is smaller than that of the long side section 9c 13. By adopting the structure, the stability and the reliability of the one-way transmission function can be ensured.
Referring to fig. 1 and 2, the power mechanism includes a motor 7 and a speed reduction assembly, the speed reduction assembly includes a first gear shaft 10 coaxially rotating with a motor shaft 7a of the motor 7 through a coupling sleeve 8, a second gear shaft 11 parallel to the first gear shaft 10, and a speed reduction primary driven gear 12 synchronously rotatably sleeved on the second gear shaft 11, the first gear shaft 10 has a speed reduction primary driving tooth 10a engaged with the speed reduction primary driven gear 12, the second gear shaft 11 has a speed reduction secondary driving tooth 11a, and the power input part 5a1 has a speed reduction secondary driven tooth 5a5 engaged with the speed reduction secondary driving tooth 11 a. Wherein, the first gear shaft 10 and the motor shaft 7a are both inserted into the coupling sleeve 8 and are both in spline fit with the coupling sleeve 8.
Referring to fig. 1 and 3, the transmission sensing mechanism includes a transmission sensing mounting sleeve 13 rotatably sleeved on the main shaft 1, a transmission sensing cam sleeve 14 sleeved on the transmission sensing mounting sleeve 13, an elastic reset element 18 for driving the transmission sensing cam sleeve 14 to approach the power output sleeve 2, and a detection device for detecting real-time power, a screw transmission pair is formed between the transmission sensing cam sleeve 14 and the transmission sensing mounting sleeve 13 and can slide axially along the transmission sensing mounting sleeve 13, and end faces of the power output sleeve 2 and the transmission sensing cam sleeve 14 at ends adjacent to each other are cam profiles to form end face cam cooperation together. The outer wall of the transmission sensing installation sleeve 13 is provided with an outer spiral raceway, a plurality of balls are arranged in the outer spiral raceway, the inner wall of the transmission sensing cam sleeve 14 is provided with an inner spiral raceway matched with the outer spiral raceway, and the balls can roll in the outer spiral raceway and the inner spiral raceway so as to ensure the stability of axial sliding.
The detection device comprises a rotating speed detection permanent magnet 15 and a displacement detection permanent magnet 16 which are both arranged on the transmission sensing cam sleeve 14, and a rotating speed detection Hall element and a displacement detection Hall element which are both arranged on the transmission sensing box body, wherein the rotating speed detection Hall element is matched with the rotating speed detection permanent magnet 15, and the displacement detection Hall element is matched with the displacement detection permanent magnet 16. And real-time power can be calculated through the acquired rotating speed and displacement data.
In addition, in order to ensure the stability of power output of the power output sleeve 2, the power output sleeve 2 is in spline fit with the main shaft 1, and a needle bearing 17 is arranged between the power output sleeve 2 and the transmission sensing mounting sleeve 13.
The elastic element group 3 applies pressure to the inner plate spiral raceway sleeve 5b to press each outer friction plate 5c and inner friction plate 5d of the friction clutch 5, at this time, the friction clutch 5 is in a combined state under the pressure of the elastic element group 3, and the power is in a high-speed gear power transmission route:
the motor 7 → the sleeve 8 → the first gear shaft 10 → the first-stage reduction driven gear 12 → the second gear shaft 11 → the outer plate and flower member housing 5a → each of the outer and inner friction plates 5c and 5d → the inner plate and spiral raceway housing 5b → the main shaft 1 → the power output housing 2 outputs power.
At this time, the elastic element group 3 is not compressed. When the resisting torque transmitted to the friction clutch 5 by the main shaft 1 is greater than or equal to the preset load limit of the friction clutch 5, the inner plate spiral raceway sleeve 5b compresses the elastic element group 3, a gap is formed between each outer friction plate 5c and each inner friction plate 5d of the friction clutch 5, namely, the outer friction plates and the inner friction plates are separated, and the power is transmitted through the following route instead, namely, a low-speed power transmission route:
the motor 7 → the coupling sleeve 8 → the first gear shaft 10 → the first-stage reduction driven gear 12 → the second gear shaft 11 → the outer plate spline housing 5a → the first-stage low-speed driven gear 6 → the counter shaft 4 → the overrunning clutch 9 → the inner plate helical raceway housing 5b → the main shaft 1 → the power output housing 2 outputs power.
At this time, the elastic element group 3 is compressed. As can be seen from the above transmission path, the present invention forms an automatic transmission mechanism that maintains a certain pressure during operation.
In the embodiment, taking an electric automobile as an example, when the whole automobile is started, the resistance is greater than the driving force, the resistance forces the main shaft 1 to rotate for a certain angle relative to the inner-sheet spiral roller way sleeve 5b, the inner-sheet spiral roller way sleeve 5b compresses the elastic element group 3 under the action of a spiral transmission pair, the outer friction plate 5c is separated from the inner friction plate 5d, namely the friction clutch 5 is in a disconnected state, and the power rotates at a low-gear speed; therefore, the low-speed starting is automatically realized, and the starting time is shortened. Meanwhile, the elastic element group 3 absorbs the energy of the movement resistance moment and stores potential energy for restoring the high-speed gear to transmit power.
After the start is successful, the running resistance is reduced, and when the component force is reduced to be smaller than the pressure generated by the elastic element group 3, the outer friction plates 5c and the inner friction plates 5d of the friction clutch 5 are restored to a close fit state by being pushed by the rapid release of the pressure generated by the elastic element group 3 due to the compression of the motion resistance, and the power is rotated at a high-gear speed.
Finally, it should be noted that the above-mentioned description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and scope of the present invention.
Claims (10)
1. The utility model provides a central-positioned transmission sensing multi-disc separation and reunion self-adaptation electric drive system, includes power unit, high-speed gear drive mechanism, low-speed gear drive mechanism, transmission sensing mechanism, main shaft (1) and synchronous rotation ground suit power take off cover (2) on main shaft (1), its characterized in that: the transmission sensing mechanism is positioned on one side of the power output sleeve (2), and the power mechanism, the high-speed transmission mechanism and the low-speed transmission mechanism are positioned on the other side of the power output sleeve (2);
the high-speed gear transmission mechanism comprises a friction clutch (5) and an elastic element group (3) for applying pretightening force to the friction clutch (5), the friction clutch (5) comprises an outer plate flower sleeve (5a), an inner plate spiral raceway sleeve (5b) and outer friction plates (5c) and inner friction plates (5d) which are alternately arranged between the outer plate flower sleeve (5a) and the inner plate spiral raceway sleeve (5b), each outer friction plate (5c) can axially slide along the outer plate flower sleeve (5a), each inner friction plate (5d) can axially slide along the inner plate spiral raceway sleeve (5b), the inner spiral raceway sleeve (5b) is sleeved on the main shaft (1) and forms a spiral transmission pair with the main shaft (1), so that the inner sheet spiral roller sleeve (5b) can slide along the axial direction of the main shaft (1), the power mechanism can transmit power to the main shaft (1) through the friction clutch (5);
low-speed gear drive mechanism includes countershaft transmission subassembly and suit freewheel clutch (9) on main shaft (1), the one end terminal surface that interior core wheel (9c) of interior piece spiral raceway cover (5b) and freewheel clutch (9) were close to each other is the cam profile to constitute the cooperation of terminal surface cam jointly, power unit can transmit power for countershaft transmission subassembly, freewheel clutch (9), interior piece spiral raceway cover (5b) and main shaft (1) through outer piece flower piece cover (5a) in proper order.
2. The central drive sensing multi-plate clutch adaptive electric drive system according to claim 1, characterized in that: the outer friction plate sleeve (5a) comprises a power input part (5a1), a press fit part (5a2) and a power output part (5a3) which are sequentially connected, the power input part (5a1) and the power output part (5a3) are both of a circular ring structure, the diameter of the power input part (5a1) is larger than that of the power output part (5a3), the press fit part (5a2) is of a disc structure, and each outer friction plate (5c) can axially slide along the inner wall of the power input part (5a 1);
inner plate spiral raceway cover (5b) is including inner plate sliding part (5b1) that is the ring structure and friction disc that is the disc structure compress tightly portion (5b2), it is vice to form screw drive between inner plate sliding part (5b1) and main shaft (1), and each inner friction disc (5d) can be followed the outer wall axial slip of inner plate sliding part (5b1), and each outer friction disc (5c) and inner friction disc (5d) are located and compress tightly between cooperation portion (5a2) and friction disc compress tightly portion (5b2), elastic element group (3) and friction disc compress tightly portion (5b2) butt.
3. The central drive sensing multi-plate clutch adaptive electric drive system according to claim 2, characterized in that: the power input portion (5a1) is spline-fitted to each outer friction plate (5c), and the inner plate sliding portion (5b1) is spline-fitted to each inner friction plate (5 d).
4. The central drive sensing multi-plate clutch adaptive electric drive system according to claim 2, characterized in that: the power mechanism comprises a motor (7) and a speed reducing assembly, the speed reducing assembly comprises a first gear shaft (10) which coaxially rotates with a motor shaft (7a) of the motor (7) through a coupling sleeve (8), a second gear shaft (11) parallel to the first gear shaft (10) and a speed reducing primary driven gear (12) which is synchronously and rotatably sleeved on the second gear shaft (11), a speed reducing primary driving tooth (10a) meshed with the speed reducing primary driven gear (12) is arranged on the first gear shaft (10), a speed reducing secondary driving tooth (11a) is arranged on the second gear shaft (11), and a speed reducing secondary driven tooth (5a5) meshed with the speed reducing secondary driving tooth (11a) is arranged on the power input part (5a 1).
5. The central drive sensing multi-plate clutch adaptive electric drive system according to claim 4, characterized in that: the first gear shaft (10) and the motor shaft (7a) are inserted into the coupling sleeve (8) and are in spline fit with the coupling sleeve (8).
6. The central drive sensing multi-plate clutch adaptive electric drive system according to claim 2, characterized in that: the auxiliary shaft transmission assembly comprises an auxiliary shaft (4) parallel to the main shaft (1) and a low-speed primary driven gear (6) synchronously and rotationally sleeved on the auxiliary shaft (4), a low-speed primary driving tooth (5a4) meshed with the low-speed primary driven gear (6) is arranged on the power output part (5a3), a low-speed secondary driving tooth (4a) is arranged on the auxiliary shaft (4), and a low-speed secondary driven tooth (9b) meshed with the low-speed secondary driving tooth (4a) is arranged on an outer ring (9a) of the overrunning clutch (9).
7. The central drive sensing multi-plate clutch adaptive electric drive system according to claim 6, characterized in that: the rolling bodies distributed along the periphery of each inner core wheel (9c) are composed of thick rolling bodies (9d) and thin rolling bodies (9e) which are alternately arranged, two opposite retainers (9f) are arranged on the peripheral surface of the inner core wheel (9c), a circle of annular groove (9f1) is formed in the inner wall of each retainer (9f), and two ends of each thin rolling body (9e) are respectively and slidably inserted into the corresponding annular grooves (9f 1).
8. The central drive sensing multi-plate clutch adaptive electric drive system according to claim 1, characterized in that: the transmission sensing mechanism comprises a transmission sensing installation sleeve (13) rotatably sleeved on the main shaft (1), a transmission sensing cam sleeve (14) sleeved on the transmission sensing installation sleeve (13), an elastic reset element (18) used for driving the transmission sensing cam sleeve (14) to be close to the power output sleeve (2) and a detection device used for detecting real-time power, wherein a spiral transmission pair is formed between the transmission sensing cam sleeve (14) and the transmission sensing installation sleeve (13) and can axially slide along the transmission sensing installation sleeve (13), and the end face, close to each other, of one end of the power output sleeve (2) and the end face, close to the transmission sensing cam sleeve (14), of the power output sleeve is a cam profile so as to jointly form end face cam matching.
9. The central drive sensing multi-plate clutch adaptive electric drive system according to claim 8, characterized in that: the detection device comprises a rotating speed detection permanent magnet (15) and a displacement detection permanent magnet (16) which are both arranged on a transmission sensing cam sleeve (14), and a rotating speed detection Hall element and a displacement detection Hall element which are both arranged on a transmission sensing box body, wherein the rotating speed detection Hall element is matched with the rotating speed detection permanent magnet (15), and the displacement detection Hall element is matched with the displacement detection permanent magnet (16).
10. The central drive sensing multi-plate clutch adaptive electric drive system according to claim 8, characterized in that: the power output sleeve (2) is in spline fit with the main shaft (1), and a needle bearing (17) is arranged between the power output sleeve and the transmission sensing installation sleeve (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011485924.7A CN112498565A (en) | 2020-12-16 | 2020-12-16 | Middle-arranged transmission sensing multi-plate clutch self-adaptive electric driving system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011485924.7A CN112498565A (en) | 2020-12-16 | 2020-12-16 | Middle-arranged transmission sensing multi-plate clutch self-adaptive electric driving system |
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| Publication Number | Publication Date |
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| CN112498565A true CN112498565A (en) | 2021-03-16 |
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