CN201520158U - Mechanical gear shift wheel hub of electric vehicle - Google Patents

Abstract

The utility model relates to a mechanical gear shift wheel hub of an electric vehicle, which belongs to the technical field of wheel power transmission, in particular to the technical field of power transmission of two-wheel and three-wheel electric vehicles. The mechanical gear shift wheel hub comprises a main shaft, a wheel hub tube and a steel ring, wherein a left end cover and a right end cover are respectively mounted at two ends of the wheel hub tube, two ends of the main shaft are respectively mounted in central bearing holes of the two end covers of the wheel hub tube, a motor is arranged at one end of the main shaft in the wheel hub tube, a motor end cover is arranged at the end part of the motor, and the end cover of the motor is fixedly connected with a rotor of the motor. The key technology is that a gear shift mechanism is arranged in the wheel hub tube located by the other end of the main shaft, the gear shift mechanism comprises a gearbox, a power output assembly and a gear position control assembly, and a gearbox body is formed in the wheel hub tube located by the other end of the main shaft. The mechanical gear shift wheel hub can not only be suitable for driving on a flat road, but also meet the different degrees of uphill driving and manned uphill driving, be applicable to hills, mountainous areas and other complicated terrains, and further solve the problems of waste of electrical energy of the electric vehicle, short service life of a battery and the like.

Description

Battery-driven car machinery shift wheel hub

(1) technical field:

Battery-driven car machinery shift wheel hub belongs to wheel power transmission technical field, relate in particular to two take turns, three-wheeled electric vehicle power transmission technical field.

(2) background technology:

Two of people's use is at present taken turns Electrical Bicycle, two and is taken turns battery-operated motor cycle, electro-tricycle etc., form by vehicle frame, storage battery, motor, controller, charger and related components thereof, the energy that such battery-driven car uses is renewable electric energy, noiseless, zero pollutes, use cost is the cheapest, thereby is subjected to people's welcome, becomes people's walking-replacing tool gradually.Battery-powered when riding, navigating mate comes adjustment control power output size by handle, to change moving velocity.Controller horsepower output size can satisfy rotating speed and torsion in various degree substantially when flat pavement running, if but when meeting in various degree the gradient, only according to controller control voltage, the size of electric current changes horsepower output, can't satisfy the required moment of the gradient at all, can't realize manned climbing purpose, this moment as increasing controller horsepower output, must increase electric current, its torsion has arrived the limit, can't increase, can make motor, controller heats up rapidly under powerful rush of current, will soon burn controller as untimely parking, motor, storage battery also can be subjected to damaging significantly being directed at reduction of service life simultaneously.Thereby existing battery-driven car some common fatal shortcomings of ubiquity all, as can only be at flat pavement running, complex-terrains such as incompatibility hills, mountain area, thus limited the scope of using.Existing battery-driven car also has it self shortcoming: wheel hub speed-changing mechanism manufacturing process difficulty is big, complex structure, and parts are many, the back maintenance trouble that is out of order, consumption of current is big.

(3) summary of the invention:

Problem to be solved in the utility model is exactly at above shortcoming and defect, the wheel hub of a kind of electric vehicle gear shift, speed change is provided, so that battery-driven car not only is fit to flat pavement running, can also satisfy in various degree upward slope and manned up-hill journey, adapt to complex-terrains such as hills, mountain area, also will solve problems such as battery-driven car waste electric energy and storage battery weak point in service life.Its technical scheme is as follows:

It comprises main shaft, wheel hub tube and steel ring, wheel hub tube two ends are installed left end cap and right end cap respectively, and the main shaft two ends are installed in respectively in the center bearing pilot bearing hole of two end caps of wheel hub tube, and main shaft one end in the wheel hub tube is a motor, the motor end is an electric motor end cap, and electric motor end cap and rotor are connected.Its gordian technique is to be speed-changing mechanism in the wheel hub tube at main shaft other end place, speed-changing mechanism comprises change speed gear box, takeoff output assembly and gear control assembly, the wheel hub tube at main shaft other end place constitutes gearbox body, fixedly mount first supporting disk and second supporting disk at the gearbox body inwall, main shaft passes the centre hole of two supporting disks, first supporting disk has radially shrinkage pool, first rotating shaft and second rotating shaft are installed respectively between two supporting disks, respectively gear is installed and gear is meshing with each other at an end of first rotating shaft and second rotating shaft, gear is installed in the other end in first rotating shaft, in second rotating shaft gear is installed.The takeoff output assembly is a stationary power output sleeve on electric motor end cap, outside face at the takeoff output axle sleeve is installed unilateral bearing, gear is installed on unilateral bearing, constitute ratchet, gear mesh in the ratchet and second rotating shaft, sliding sleeve is positioned on the main shaft outside the inside face of takeoff output axle sleeve is installed, the outside face of the outer sliding sleeve other end is equipped with the gear of band convex surface, convex surface embeds in the radially shrinkage pool of first supporting disk, gear mesh in the gear and second rotating shaft, the inside face of sliding sleeve is positioned on the main shaft by sliding sleeve in the bearing installation outside.Gear control assembly is to have axis hole in main shaft right-hand member inside, pack into successively in the axis hole and spur fastener, spring and stroke adjustment hollow screw, stroke is adjusted the interior backguy guide pipe of installing of centre hole of hollow screw, backguy passes that backguy guide pipe, stroke are adjusted hollow screw, spring is fixed to spurring fastener, the pulling fastener connects by tie bolt, tie bolt is positioned on the sliding sleeve, and ratchet is installed on main shaft, the gear mesh of the ratchet and first roller end.

Compared with prior art the utlity model has following beneficial effect:

1, the utility model has been installed the speed-change gear of being made up of a plurality of gears in former wheel hub tube, it has rationally scientifically designed the speed and the torsion of three different gradient (level road, upward slope, abrupt slope load-carrying) in the space of " rotating narrow ", just under the prerequisite that does not increase rated current or output rating, increase power more than 1～3 times, be equivalent to increase the power of motor more than 3 times.The power needs of different road surfaces and different gradient and load have fundamentally been satisfied, not only can realize the multi-stage mechanical speed change, it is difficult also to have solved the common wheel hub motor climbing of prior art, can't mannedly make the grade, and load causes that greatly electric current sharply increases, burn the problem of controller and motor easily, both saved the energy, prolonged the service life of parts such as storage battery, motor, controller again.

2, the main shaft of motor of the present utility model and speed-changing mechanism is a same main shaft, has so both guaranteed concentricity, the input and output kinetic force is got to the limit utilize, solved main shaft segmentation combination in the prior art, discontinuity, friction drag is big, and big problem consumes energy.

3, the utility model is simple in structure, and manufacturing and assembling and setting are easy.

4, the utility model has kept the low speed common wheel hub motor advantage than high-speed electric expreess locomotive power saving when flat pavement running.

(4) description of drawings:

Fig. 1 is the utility model structural representation;

Fig. 2 is the takeoff output assembly structure scheme drawing of Fig. 1;

Fig. 3 is Fig. 4 A-A cutaway view;

Fig. 4 is Fig. 1 first supporting disk structural representation;

Fig. 5 is another structural representation of the utility model;

Fig. 6 is the takeoff output assembly structure scheme drawing of Fig. 5;

Fig. 7 is the utility model structural representation again.

(5) specific embodiment:

Embodiment one:

Referring to Fig. 1--Fig. 4, present embodiment comprises main shaft 2, wheel hub tube 6 and steel ring 12, wheel hub tube 6 two ends are installed left end cap 5 and right end cap 19 respectively by bearing 3, main shaft 2 two ends are installed in respectively in the center bearing pilot bearing hole of two end caps of wheel hub tube, main shaft one end in wheel hub tube 6 is a motor 7, motor 7 comprises stator 11 and rotor 8, stator 11 is fixed on the main shaft 2, lay machine winding 10 on the stator 11, between rotor 8 and machine winding 10, be provided with magnetic links 9, motor 7 ends are electric motor end cap 39 by bearing, and electric motor end cap 39 is connected with rotor 8.Motor supply line 1 is drawn from the left end of main shaft 2, and brake disc 4 is installed on left end cap 5, and steel ring 12 is installed in the centre of wheel hub tube 6.Its gordian technique is to be speed-changing mechanism in the wheel hub tube at main shaft other end place, and speed-changing mechanism comprises change speed gear box, takeoff output assembly and gear control assembly.The wheel hub tube at main shaft other end place constitutes gearbox body, be screwed installation first supporting disk 35 and second supporting disk 33 at the gearbox body inwall, main shaft 2 passes the centre hole of two supporting disks, be connected and fixed by a plurality of bushing pipes 37 and balance tie bolt 38 between two supporting disks, at the gearbox body inwall balance block 36 is installed, two supporting disks are annular support plate, constitute the some of change speed gear box, and first supporting disk 35 has radially shrinkage pool 34.Between two supporting disks, first rotating shaft 16 and second rotating shaft 43 are installed respectively by bearing, two rotating shafts are parallel to each other, by flat key 14 gear 13 is installed respectively and gear 44 is meshing with each other at an end of first rotating shaft 16 and second rotating shaft 43, the other end of first rotating shaft 16 is positioned at outside two supporting disks, gear 17 is installed by flat key in the other end in first rotating shaft 16, by flat key gear 18 is installed in second rotating shaft 43 between two supporting disks.

The takeoff output assembly is a stationary power output sleeve 42 on electric motor end cap 39, and when main shaft 2 is fixed, electric current inputs to machine winding 10 from motor supply line 1, and produce rotating field in the motor this moment, and rotor 8 begins by clockwise rotating.Because takeoff output axle sleeve 42 links to each other with electric motor end cap 39, electric motor end cap 39 links to each other with rotor 8 again, so motor power is by 42 outputs of takeoff output axle sleeve.Outside face at takeoff output axle sleeve 42 is installed unilateral bearing 41 by flat key, on unilateral bearing 41 gear is installed, and constitutes ratchet 40, gear 44 engagements in the ratchet 40 and second rotating shaft 43.Sliding sleeve 23 is positioned on the main shaft 2 outside the inside face of takeoff output axle sleeve 42 is installed, takeoff output axle sleeve 42 is a hollow shaft sleeve, its axis hole inside face has the spline groove, one end outside face of outer sliding sleeve 23 has the spline raised line, the spline groove equates with spline raised line quantity and mates, one end of outer sliding sleeve 23 wounded in the battle key raised lines is installed in the hole of takeoff output axle sleeve 42, spline groove and spline raised line are meshing with each other and can carry out transmission of power, and outer sliding sleeve 23 relative takeoff output axle sleeves 42, can about flexible and do not influence the transmission of power work of carrying out between them.The outside face of outer sliding sleeve 23 other ends is equipped with the gear 22 of being with convex surface 21 by flat key, and convex surface 21 embeds in the radially shrinkage pool 34 of first supporting disk 35, the gear 22 of band convex surface and 18 engagements of the gear in second rotating shaft 43.The radially shrinkage pool of first supporting disk 35 equates with the quantity of convex surface 21, can be meshing with each other and carry out transmission of power.The inside face of sliding sleeve 23 is positioned on the main shaft 2 by sliding sleeve in the bearing installation 24 outside, between interior sliding sleeve 24 and the main shaft 2 certain glade plane space is arranged.

Gear control assembly is to have axis hole in main shaft 2 right-hand member inside, pack into successively in the axis hole and spur fastener 31, spring 29 and stroke adjustment hollow screw 28, stroke is adjusted the interior backguy guide pipe 27 of installing of centre hole of hollow screw 28, backguy 26 passes that backguy guide pipe 27, stroke are adjusted hollow screw 28, spring 29 is fixing by backguy tightening screw 30 to pulling fastener 31, pulling fastener 31 connects by tie bolt 32, tie bolt 32 vertically passes interior sliding sleeve 24 and pulling fastener perpendicular to main shaft 2 , allow the takeoff output assembly be connected with gear control assembly, make the takeoff output assembly be controlled by gear control assembly.On the main shaft 2 of tie bolt 32 positions, be provided with the longitudinal hole of certain width,, come the stroke of control linkage bolt 32, promptly controlled the horizontal sliding stroke of takeoff output assembly by sliding rail as the horizontal sliding rail of tie bolt 32.Unilateral bearing 25 is installed by flat key in the position of next-door neighbour's right end cap 19 on main shaft 2, and unilateral bearing 25 is installed gear by flat key, constitutes ratchet 20, gear 17 engagements of ratchet 20 and first rotating shaft, 16 ends.

When 3 grades of needs are ridden, at first allow motor stop outputting power, after spurring backguy 26 then and entering 3 grades, the locking backguy is positioned in 3 grades it.This moment, the convex surface 21 of gear 22 embedded in the radially shrinkage pool 34 of first supporting disk 35, made gear 22 and 35 engagements of first supporting disk, gear 22,18,44,13,17 and ratchet 40,20 self-lockings simultaneously.Motor provides power and begins to rotate by cw then, this moment, motor power was spread out of by gear 22 → convex surface 21 → the first supporting disks 35 → wheel hub tube 6 → steel ring 12 of rotor 8 → electric motor end cap 39 → takeoff output axle sleeve 42 → outer sliding sleeve 23 → band convex surface, and the rotating speed of steel ring 12 is 1: 1 with the motor speed ratio.Doing the cw spinning motion with the gear 22 and the ratchet 40,20 of convex surface with respect to main shaft 2 simultaneously; Gear 18,44,13,17 is being done cw revolution motion and not rotation with respect to main shaft 2 around main shaft 2.When motor stopped outputting power, wheel was rotated further under action of inertia, slowly stops then.

When 2 grades of needs are ridden, at first allow motor stop outputting power, after spurring backguy 26 then and entering 2 grades, the locking backguy is positioned in 2 grades it.The radially shrinkage pool 34 of the convex surface 21 of gear 22 and first supporting disk 35 breaks away from this moment, and gear 22,18 continues engagement.Motor provides power and begins to rotate by cw then, and gear 22 clockwise rotates, and gear 18,44 rotates counterclockwise.Because the diameter of ratchet 40 and the number of teeth are less than the diameter and the number of teeth of gear 22, so have only gear 22 doing the work of transmission of power.And ratchet 40 under the drive of gear 22 by clockwise rotating, and speed surpasses motor speed.Gear 13,17 clockwise rotates, ratchet 20 transfixions.Gear 17 is a track with actionless ratchet 20 simultaneously, borrows the power of cw rotation to do the cw revolution motion around ratchet 20.This moment, motor power was spread out of by gear 22 → gear 18,44,13 → the first rotating shafts 16 → the first supporting disks 35, second supporting disk, 33 → wheel hub tube, the 6 → steel ring 12 of rotor 8 → electric motor end cap 39 → takeoff output axle sleeve 42 → outer sliding sleeve 23 → band convex surface, and the rotating speed of steel ring 12 is 1: 2 with the motor speed ratio.Gear 22 and ratchet 40 are being done the cw spinning motion with respect to main shaft 2 simultaneously; Ratchet 20 is with respect to main shaft 2 transfixions.Gear 18,44,13,17 is being done cw revolution motion and rotation relatively with respect to main shaft 2 around main shaft 2.The velocity contrast of this rotation process middle gear 18,44,13,17 and first supporting disk 35, second supporting disk 33 has decomposed by bearing 15,46,47,45, so the motion between them is not disturbed mutually.When motor stopped outputting power, wheel was rotated further under action of inertia, slowly stops then.

When 1 grade of needs are ridden, at first allow motor stop outputting power, after spurring backguy 26 then and entering 1 grade, the locking backguy is positioned in 1 grade it.This moment, gear 22 broke away from gears 18, and ratchet 40 continues and gear 44 engagements, and motor provides power and begins to rotate by cw then.Thereafter principle of work is identical with 2 grades, no longer repeats.The rotating speed of steel ring 12 is 1: 3 with the motor speed ratio.

If can make two grades of speed speed-changing mechanisms after taking down ratchet 40, and the horizontal space distance narrows down, and its working process is same as described above, just lacks a gear, can select according to different needs.

In the middle of travelling, even allow motor stop outputting power before the gear shift, but wheel can be rotated further under action of inertia as car.This constantly can switch gear arbitrarily to wheel in coast, and requires to adding downshift one by one for best.

The utility model gear shift mechanism in the course of the work has the synchronized gear shift function, and " whole gearbox body is rotation ".

Embodiment two:

Referring to Fig. 5, Fig. 6, present embodiment comprises main shaft 2, wheel hub tube 6 and steel ring 12, wheel hub tube 6 two ends are respectively left end cap 5 and right end cap 19, main shaft 2 two ends are installed in respectively in the center bearing pilot bearing hole of two end caps of wheel hub tube, main shaft one end in wheel hub tube 6 is a motor 7, the motor end is an electric motor end cap by bearing, and electric motor end cap and rotor are connected.Its gordian technique is to be speed-changing mechanism in the wheel hub tube at main shaft other end place, speed-changing mechanism comprises change speed gear box, takeoff output assembly and gear control assembly, the wheel hub tube at main shaft other end place constitutes gearbox body, be screwed installation the 3rd supporting disk 48 at the gearbox body inwall, the 3rd supporting disk 48 has radially shrinkage pool, the centre hole of supporting disk passes main shaft 2, by bearing installation the 3rd rotating shaft 50, by flat key gear 49 is installed in the 3rd rotating shaft 50 on the 3rd supporting disk 48.Bearing is installed in right end cap 19, the other end of the 3rd rotating shaft 50 is installed on the bearing, next-door neighbour's bearing is installed gear 52,51 by flat key respectively in the 3rd rotating shaft 50, mesh at the gear of installing in gear 53 and the 3rd rotating shaft 50 by flat key by bearing installation the 4th rotating shaft 54, the four rotating shafts 54 on the right end cap 19 52.

The takeoff output assembly is a stationary power output sleeve 42 on electric motor end cap, sliding sleeve 23 outside the inside face of takeoff output axle sleeve 42 is installed, takeoff output axle sleeve 42 is a hollow shaft sleeve, its axis hole inside face has the spline groove, one end outside face of outer sliding sleeve 23 has the spline raised line, the spline groove equates with spline raised line quantity and mates, one end of outer sliding sleeve 23 wounded in the battle key raised lines is installed in the hole of takeoff output axle sleeve 42, spline groove and spline raised line are meshing with each other and can carry out transmission of power, and outer sliding sleeve 23 relative takeoff output axle sleeves 42, can about flexible and do not influence the transmission of power work of carrying out between them.The outside face of outer sliding sleeve 23 other ends is equipped with the gear 22 of band convex surface 21 by flat key, convex surface 21 embeds in the radially shrinkage pool of the 3rd supporting disk 48, radially shrinkage pool equates with the quantity of convex surface 21, can be meshing with each other and carry out transmission of power, gear 49 engagements in gear 22 and the 3rd rotating shaft 50, gear 56 is installed by flat key in the end of sliding sleeve 23 outside, the inside face of sliding sleeve 23 is positioned on the main shaft 2 by sliding sleeve in the bearing installation 24 outside, between interior sliding sleeve 24 and the main shaft 2 certain glade plane space is arranged.

Gear control assembly is to have axis hole in main shaft 2 right-hand member inside, pack into successively in the axis hole and spur fastener 31, spring 29 and stroke are adjusted hollow screw 28, stroke is adjusted the interior backguy guide pipe 27 of installing of centre hole of hollow screw 28, backguy guide pipe 27 is passed in backguy 26, stroke is adjusted hollow screw 28, spring 29 is fixing by backguy tightening screw 30 to pulling fastener 31, pulling fastener 31 connects by tie bolt 32, tie bolt 32 is perpendicular to main shaft 2, sliding sleeve 24 and pulling fastener 31 in vertically passing, allow the takeoff output assembly be connected, make the takeoff output assembly be controlled by gear control assembly with gear control assembly.On the main shaft 2 of tie bolt 32 positions, be provided with the longitudinal hole of certain width,, come the stroke of control linkage bolt 32, promptly controlled the horizontal sliding stroke of takeoff output assembly by sliding rail as the horizontal sliding rail of tie bolt 32.By flat key unilateral bearing 58 is installed on main shaft 2, unilateral bearing 58 is installed ratchet 55 by flat key, gear 53 engagements in ratchet 55 and the 4th rotating shaft 54.

57 is that the hole appears in the motor supply line among the figure.

When 3 grades of needs are ridden, at first allow motor stop outputting power, after spurring backguy 26 then and entering 3 grades, the locking backguy is positioned in 3 grades it.This moment, the convex surface 21 of gear 22 embedded in the radially shrinkage pool of the 3rd supporting disk 48, made gear 22 and 48 engagements of the 3rd supporting disk, gear 22,49,52,53 and ratchet 55 self-lockings simultaneously.Motor provides power and begins to rotate by cw then, this moment, motor power was spread out of by rotor → electric motor end cap → takeoff output axle sleeve 42 → outer sliding sleeve 23 → gear 22 → convex surface 21 → the 3rd supporting disk 48 → wheel hub tubes 6 → steel ring 12, and the rotating speed of steel ring 12 is 1: 1 with the motor speed ratio.Gear 22,56 and ratchet 55 are being done the cw spinning motion with respect to main shaft 2 simultaneously.Gear 49,51,52,53 is being done cw revolution motion and not rotation with respect to main shaft 2 around main shaft 2.When motor stopped outputting power, wheel was rotated further under action of inertia, slowly stops then.

When 2 grades of needs are ridden, at first allow motor stop outputting power, after spurring backguy 26 then and entering 2 grades, the locking backguy is positioned in 2 grades it.The radially shrinkage pool of the convex surface 21 of gear 22 and the 3rd supporting disk 48 breaks away from this moment, and gear 22,49 continues engagement.Motor provides power and begins to rotate by cw then, and gear 22 clockwise rotates, and gear 49,51,52 rotates counterclockwise, and gear 53 clockwise rotates, ratchet 55 transfixions.This moment, motor power was spread out of by rotor → electric motor end cap → takeoff output axle sleeve 42 → gear 22,49 → the 3rd rotating shaft 50 → gears 52,53 → the 4th rotating shaft 54 → right end caps 19 → wheel hub tube 6 → steel ring 12, and the rotating speed of steel ring 12 is 1: 2 with the motor speed ratio.Gear 22,56 is being done the cw spinning motion with respect to main shaft 2 simultaneously.Ratchet 55 is with respect to main shaft 2 transfixions.Gear 49,51,52,53 is being done cw revolution motion and rotation relatively with respect to main shaft 2 around main shaft 2.The velocity contrast of this rotation process middle gear 49 and the 3rd supporting disk 48 has decomposed by bearing, so the motion between them is not disturbed mutually.When motor stopped outputting power, wheel was rotated further under action of inertia, slowly stops then.

When 1 grade of needs are ridden, at first allow motor stop outputting power, after spurring backguy 26 then and entering 1 grade, the locking backguy is positioned in 1 grade it.This moment gear 22 disengaging gears 49, gear 56 and gear 51 engagements.Motor provides power and begins to rotate by cw then.Thereafter principle of work is identical with 2 grades, no longer repeats.The rotating speed of steel ring 12 is 1: 3 with the motor speed ratio.

If can make two grades of speed speed-changing mechanisms after taking down gear 51,56, and the horizontal space distance narrows down, and its working process is same as described above, just lacks a gear, can select according to different needs.

In the middle of travelling, even allow motor stop outputting power before the gear shift, but wheel can be rotated further under action of inertia as car.This constantly can switch gear arbitrarily to wheel in coast, and requires to adding downshift one by one for best.

Embodiment three:

Referring to Fig. 7, present embodiment comprises main shaft 2, wheel hub tube 6 and steel ring 12, wheel hub tube 6 two ends are installed left end cap 5 and right end cap 19 respectively, main shaft 2 two ends are installed in respectively in the center bearing pilot bearing hole of two end caps of wheel hub tube, main shaft one end in wheel hub tube 6 is a motor 7, motor 7 ends are electric motor end cap, and electric motor end cap and rotor are connected.Its gordian technique is to be speed-changing mechanism in the wheel hub tube at main shaft other end place, and speed-changing mechanism comprises change speed gear box, takeoff output assembly and gear control assembly, and the wheel hub tube at main shaft other end place constitutes gearbox body.

The takeoff output assembly is a stationary power output sleeve 42 on electric motor end cap, sliding sleeve 23 outside the inside face of takeoff output axle sleeve 42 is installed, takeoff output axle sleeve 42 is a hollow shaft sleeve, its axis hole inside face has the spline groove, one end outside face of outer sliding sleeve 23 has the spline raised line, the spline groove equates with spline raised line quantity and mates, one end of outer sliding sleeve 23 wounded in the battle key raised lines is installed in the hole of takeoff output axle sleeve 42, spline groove and spline raised line are meshing with each other and can carry out transmission of power, and outer sliding sleeve 23 relative takeoff output axle sleeves 42, can about flexible and do not influence the transmission of power work of carrying out between them.The inside face of sliding sleeve 23 is positioned on the main shaft 2 by sliding sleeve in the bearing installation 24 outside, between interior sliding sleeve 24 and the main shaft 2 certain glade plane space is arranged.

Fixedly mount the 4th supporting disk 59 at the gearbox body inwall, the centre hole of the 4th supporting disk is installed bearing, the 6th supporting disk 68 is installed on the bearing, projection and shrinkage pool are radially arranged on the 6th supporting disk 68, projection is installed on the interior circle of bearing of the 4th supporting disk, end at the 6th supporting disk passes through bearing installation the 5th rotating shaft 63, end in the 5th rotating shaft is installed gear 60 by flat key, the outer wall of sliding sleeve 23 is installed the gear 22 that has convex surface 21 by flat key outside, the gear 22 of band convex surface and 60 engagements of the gear in the 5th rotating shaft, in the radially shrinkage pool that convex surface 21 embeds on the 6th supporting disk, radially shrinkage pool equates with the quantity of convex surface 21, can be meshing with each other and carry out transmission of power, gear 22 sides at the band convex surface also are provided with gear 66, the other end in the 5th rotating shaft 63 passes through bearing installation the 5th supporting disk 67, the centre hole of the 5th supporting disk is installed on the main shaft 2 by unilateral bearing 65, between the 6th supporting disk and the 5th supporting disk, be connected and fixed by a plurality of bushing pipes 37 and balance tie bolt 38, two supporting disks are annular support plate, constitute the some of change speed gear box.End in the 5th rotating shaft 63 is installed gear 62 by flat key, goes up by flat key at right end cap (19) gear 64 and gear 62 engagements are installed.

Gear control assembly is to have axis hole in main shaft 2 right-hand member inside, pack into successively in the axis hole and spur fastener 31, spring 29 and stroke are adjusted hollow screw 28, stroke is adjusted the interior backguy guide pipe 27 of installing of centre hole of hollow screw 28, backguy guide pipe 27 is passed in backguy 26, stroke is adjusted hollow screw 28, spring 29 is fixing to pulling fastener 31, pulling fastener 31 connects by tie bolt 32, tie bolt 32 is perpendicular to main shaft 2, sliding sleeve 24 and pulling fastener 31 in vertically passing, allow the takeoff output assembly be connected, make the takeoff output assembly be controlled by gear control assembly with gear control assembly.On the main shaft 2 of tie bolt 32 positions, be provided with the longitudinal hole of certain width,, come the stroke of control linkage bolt 32, promptly controlled the horizontal sliding stroke of takeoff output assembly by sliding rail as the horizontal sliding rail of tie bolt 32.

When 3 grades of needs are ridden, at first allow motor stop outputting power, after spurring backguy 26 then and entering 3 grades, the locking backguy is positioned in 3 grades it.In the radially shrinkage pool that the convex surface 21 of gear 22 embeds on the 6th supporting disk, make the radially shrinkage pool engagement on gear 22 and the 6th supporting disk, gear 22,60,62,64 self-lockings simultaneously at this moment.Motor provides power and begins to rotate by cw then, this moment, motor power was spread out of by gear 22 → the 6th supporting disk 68 → balance tie bolt 38 → the 5th supporting disks 67 → the 5th rotating shaft 63 → gear 62,64 → right end cap, 19 → wheel hub tube, the 6 → steel ring 12 of motor 7 → takeoff output axle sleeve 42 → outer sliding sleeve 23 → band convex surface, and the rotating speed of steel ring 12 is 1: 1 with the motor speed ratio.Motor power also has one tunnel output can pass to steel ring 12 simultaneously, and its path is that gear 22 → the 6th supporting disk 68 and gear 60 → the 5th rotating shaft 63 → gear 62,64 → right end cap, 19 → wheel hub tube, the 6 → steel ring 12 of motor 7 → takeoff output axle sleeve 42 → outer sliding sleeve 23 → band convex surface spreads out of.Gear 22,66,64 is being done the cw spinning motion with respect to main shaft 2 simultaneously, and the 6th supporting disk 68 and the 5th supporting disk 67 are also being done cw spinning motion (unilateral bearing 65 can clockwise rotate) with respect to main shaft 2.Gear 60,61,62 is being done the cw revolution motion with respect to main shaft 2, and not rotation.When motor stopped outputting power, wheel was rotated further under action of inertia, slowly stops then.

When 2 grades of needs are ridden, at first allow motor stop outputting power, after spurring backguy 26 then and entering 2 grades, the locking backguy is positioned in 2 grades it.The radially shrinkage pool of the convex surface 21 of gear 22 and the 6th supporting disk 68 breaks away from this moment, and gear 22,60 continues engagement.Motor provides power and begins to rotate by cw then, and gear 22 clockwise rotates, and gear 60,61,62 rotates counterclockwise, and gear 64 clockwise rotates.Under the effect that unilateral bearing 65 can not rotate counterclockwise, the 6th supporting disk 68 and the 5th supporting disk 67 are with respect to main shaft 2 transfixions.So gear 60,61,62 conter clockwise rotations are not revolved round the sun with respect to main shaft 2.Gear 22,66,64 is being done the cw spinning motion with respect to main shaft 2.This moment, motor power was spread out of by gear 22 → gear 60 → the 5th rotating shaft 63 → gear 62,64 → right end cap, 19 → wheel hub tube, the 6 → steel ring 12 of motor 7 → takeoff output axle sleeve 42 → outer sliding sleeve 23 → band convex surface.The rotating speed of steel ring 12 and motor speed are 1: 2.When motor stopped outputting power, wheel was rotated further under action of inertia, slowly stops then.

When 1 grade of needs are ridden, at first allow motor stop outputting power, after spurring backguy 26 then and entering 1 grade, the locking backguy is positioned in 1 grade it.Gear 22 breaks away from gears 60 at this moment, and gear 66 is meshing with each other with gear 61.Motor provides power and begins to rotate by cw then.And the rotating speed of steel ring 12 is 1: 3 with the motor speed ratio.Thereafter principle of work is identical with 2 grades, no longer repeats.

If can make two grades of speed speed-changing mechanisms after taking down gear 66,61, and the horizontal space distance narrows down, and its working process is same as described above, just lacks a gear, can select according to different needs.

In the middle of travelling, allow motor stop outputting power before both having made gear shift, but wheel can be rotated further as car under action of inertia.This constantly can switch gear arbitrarily to wheel in coast, and requires to adding downshift one by one for best.

Claims (6)

1. battery-driven car machinery shift wheel hub, comprise main shaft (2), wheel hub tube (6) and steel ring (12), wheel hub tube (6) two ends are installed left end cap (5) and right end cap (19) respectively, main shaft (2) two ends are installed in respectively in the center bearing pilot bearing hole of two end caps of wheel hub tube, main shaft one end in wheel hub tube (6) is motor (7), motor (7) end is electric motor end cap (39), electric motor end cap (39) is connected with rotor (8), it is characterized in that in the wheel hub tube at main shaft other end place be speed-changing mechanism, speed-changing mechanism comprises change speed gear box, takeoff output assembly and gear control assembly, the wheel hub tube at main shaft other end place constitutes gearbox body, fixedly mount first supporting disk (35) and second supporting disk (33) at the gearbox body inwall, main shaft (2) passes the centre hole of two supporting disks, first supporting disk (35) has radially shrinkage pool (34), first rotating shaft (16) and second rotating shaft (43) are installed respectively between two supporting disks, gear (13) is installed respectively and gear (44) is meshing with each other at an end of first rotating shaft (16) and second rotating shaft (43), gear (17) is installed in the other end in first rotating shaft (16), goes up in second rotating shaft (43) gear (18) is installed; The takeoff output assembly is to go up stationary power output sleeve (42) at electric motor end cap (39), outside face at takeoff output axle sleeve (42) is installed unilateral bearing (41), go up the installation gear at unilateral bearing (41), constitute ratchet (40), gear (44) engagement in ratchet (40) and second rotating shaft (43), sliding sleeve (23) is positioned on the main shaft (2) outside the inside face of takeoff output axle sleeve (42) is installed, the outside face of outer sliding sleeve (23) other end is equipped with the gear (22) of band convex surface (21), convex surface (21) embeds in the radially shrinkage pool (34) of first supporting disk (35), gear (18) engagement in gear (22) and second rotating shaft (43), the inside face of sliding sleeve (23) is positioned on the main shaft (2) by sliding sleeve (24) in the bearing installation outside; Gear control assembly is to have axis hole in main shaft (2) right-hand member inside, pack into successively in the axis hole and spur fastener (31), spring (29) and stroke are adjusted hollow screw (28), stroke is adjusted the interior backguy guide pipe (27) of installing of centre hole of hollow screw (28), backguy guide pipe (27) is passed in backguy (26), stroke is adjusted hollow screw (28), spring (29) is fixing to spurring fastener (31), pulling fastener (31) connects by tie bolt (32), tie bolt (32) is positioned on the sliding sleeve (24), go up installation ratchet (20) at main shaft (2), ratchet (20) meshes with the gear (17) of first rotating shaft (16) end.

2. battery-driven car machinery shift wheel hub, comprise main shaft (2), wheel hub tube (6) and steel ring (12), wheel hub tube (6) two ends are respectively left end cap (5) and right end cap (19), main shaft (2) two ends are installed in respectively in the center bearing pilot bearing hole of two end caps of wheel hub tube, main shaft one end in wheel hub tube (6) is motor (7), the motor end is an electric motor end cap, electric motor end cap and rotor are connected, it is characterized in that in the wheel hub tube at main shaft other end place be speed-changing mechanism, speed-changing mechanism comprises change speed gear box, takeoff output assembly and gear control assembly, the wheel hub tube at main shaft other end place constitutes gearbox body, fixedly mount the 3rd supporting disk (48) at the gearbox body inwall, the 3rd supporting disk (48) has radially shrinkage pool, go up installation the 3rd rotating shaft (50) at the 3rd supporting disk (48), go up installation gear (49) in the 3rd rotating shaft (50), bearing is installed in right end cap (19), the other end of the 3rd rotating shaft (50) is installed on the bearing, go up next-door neighbour's bearing installation gear (52) in the 3rd rotating shaft (50), (51), go up installation the 4th rotating shaft (54) at right end cap (19), gear (52) engagement in gear (53) and the 3rd rotating shaft (50) is installed in the 4th rotating shaft (54); The takeoff output assembly is to go up stationary power output sleeve (42) at electric motor end cap (39), sliding sleeve (23) outside the inside face of takeoff output axle sleeve (42) is installed, the outside face of outer sliding sleeve (23) other end is equipped with the gear (22) of band convex surface (21), convex surface (21) embeds in the radially shrinkage pool of the 3rd supporting disk (48), gear (49) engagement in gear (22) and the 3rd rotating shaft (50), gear (56) is installed in the end of sliding sleeve (23) outside, and the inside face of sliding sleeve (23) is positioned on the main shaft (2) by sliding sleeve (24) in the bearing installation outside; Gear control assembly is to have axis hole in main shaft (2) right-hand member inside, pack into successively in the axis hole and spur fastener (31), spring (29) and stroke are adjusted hollow screw (28), stroke is adjusted the interior backguy guide pipe (27) of installing of centre hole of hollow screw (28), backguy guide pipe (27) is passed in backguy (26), stroke is adjusted hollow screw (28), spring (29) is fixing to spurring fastener (31), pulling fastener (31) connects by tie bolt (32), tie bolt (32) is positioned on the sliding sleeve (24), go up installation ratchet (55) at main shaft (2), gear (53) engagement in ratchet (55) and the 4th rotating shaft (54).

3. battery-driven car machinery shift wheel hub, comprise main shaft (2), wheel hub tube (6) and steel ring (12), wheel hub tube (6) two ends are installed left end cap (5) and right end cap (19) respectively, main shaft (2) two ends are installed in respectively in the center bearing pilot bearing hole of two end caps of wheel hub tube, main shaft one end in wheel hub tube (6) is motor (7), motor (7) end is an electric motor end cap, electric motor end cap and rotor (8) are connected, it is characterized in that in the wheel hub tube at main shaft other end place be speed-changing mechanism, speed-changing mechanism comprises change speed gear box, takeoff output assembly and gear control assembly, the wheel hub tube at main shaft other end place constitutes gearbox body, the takeoff output assembly is a stationary power output sleeve (42) on electric motor end cap, sliding sleeve (23) outside the inside face of takeoff output axle sleeve (42) is installed, sliding sleeve (24) was positioned on the main shaft (2) in the inside face of sliding sleeve (23) was installed outside; Fixedly mount the 4th supporting disk (59) at the gearbox body inwall, the centre hole of the 4th supporting disk is installed bearing, the 6th supporting disk (68) is installed on the bearing, projection and shrinkage pool are radially arranged on the 6th supporting disk (68), projection is installed on the interior circle of bearing of the 4th supporting disk, at an end of the 6th supporting disk the 5th rotating shaft (63) is installed, end in the 5th rotating shaft is installed gear (60), the outer wall of sliding sleeve (23) is installed the gear (22) that has convex surface (21) outside, the gear (22) of band convex surface and the engagement of the gear (60) in the 5th rotating shaft, convex surface (21) embeds the other end of inherent the 5th rotating shaft of radially shrinkage pool (63) on the 6th supporting disk the 5th supporting disk (67) is installed, the centre hole of the 5th supporting disk is installed on the main shaft (2) by unilateral bearing (65), end in the 5th rotating shaft (63) is installed gear (62), goes up at right end cap (19) gear (64) and gear (62) engagement are installed; Gear control assembly is to have axis hole in main shaft (2) right-hand member inside, pack into successively in the axis hole and spur fastener (31), spring (29) and stroke adjustment hollow screw (28), stroke is adjusted the interior backguy guide pipe (27) of installing of centre hole of hollow screw (28), backguy (26) passes that backguy guide pipe (27), stroke are adjusted hollow screw (28), spring (29) is fixing to spurring fastener (31), pulling fastener (31) connects by tie bolt (32), and tie bolt (32) is positioned on the sliding sleeve (24).

4. according to claim 1 or 2 or 3 described battery-driven car machinery shift wheel hubs, it is characterized in that takeoff output axle sleeve (42) is a hollow shaft sleeve, its axis hole inside face has the spline groove, one end outside face of outer sliding sleeve (23) has the spline raised line, spline groove and spline raised line coupling, one end of the wounded in the battle key raised line of outer sliding sleeve (23) is installed in the hole of takeoff output axle sleeve (42), and spline groove and spline raised line are meshing with each other.

5. according to the described battery-driven car machinery of claim 1 shift wheel hub, it is characterized in that being connected and fixed by bushing pipe (37) and balance tie bolt (38) between two supporting disks, balance block (36) is installed at the gearbox body inwall.

6. according to claim 1 or 2 or 3 described battery-driven car machinery shift wheel hubs, it is characterized in that on the main shaft (2) of tie bolt (32) position, being provided with longitudinal hole, as the horizontal sliding rail of tie bolt (32).

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