CN103821881A - Electric bicycle gear shifting mechanism - Google Patents
Electric bicycle gear shifting mechanism Download PDFInfo
- Publication number
- CN103821881A CN103821881A CN201410075329.4A CN201410075329A CN103821881A CN 103821881 A CN103821881 A CN 103821881A CN 201410075329 A CN201410075329 A CN 201410075329A CN 103821881 A CN103821881 A CN 103821881A
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- Prior art keywords
- gear
- ratchet
- sleeve
- driving
- electric motor
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/087—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears
- F16H3/091—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts characterised by the disposition of the gears including a single countershaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H3/00—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion
- F16H3/02—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion
- F16H3/08—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts
- F16H3/083—Toothed gearings for conveying rotary motion with variable gear ratio or for reversing rotary motion without gears having orbital motion exclusively or essentially with continuously meshing gears, that can be disengaged from their shafts with radially acting and axially controlled clutching members, e.g. sliding keys
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2306/00—Shifting
- F16H2306/40—Shifting activities
- F16H2306/46—Uncoupling of current gear
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H2306/00—Shifting
- F16H2306/40—Shifting activities
- F16H2306/50—Coupling of new gear
Abstract
The invention discloses an electric bicycle gear shifting mechanism. A third-gear gear (4) is hollowly sheathed on the outer periphery of one end of a transmission shaft sleeve (3), a secondary speed reducing driving gear (14) is arranged on the third-gear gear (4), the other end of the transmission shaft sleeve (3) is connected with an output spline sleeve (5), a two-gear gear (7) and a one-gear gear (6) are hollowly sheathed side by side in the middle of the transmission shaft sleeve (3), a double-pallet sliding sleeve (8) is arranged between the two-gear gear (7) and the secondary speed reducing driving gear (14) and is connected with a pulling fork (16), and the pulling force (16) is driven through a gear pair by a step motor (17). The electric bicycle gear shifting mechanism has the advantages that the step motor only works during the gear shifting, energy sources can be effectively saved; during high-speed operation, only primary speed regulation is realized, so the efficiency can be higher than that of conventional gear shifting motors, in addition, the gear shifting is convenient, fast and stable, and the occurrence of greater impact force during the gear shifting can be avoided; the weight of the whole bicycle of an electric bicycle is totally born on a main shaft, the difficulty and the precision of the assembly can be reduced, and the fracture of a motor shaft can also be effectively prevented.
Description
Technical field
The invention belongs to vehicle technology field, specifically, the particularly gearshift driving mechanism in electric motor car.
Background technique
At present, the driving mechanism of electric motor car generally adopts two gear speed changes, and existing deficiency is:
1) the reduction speed ratio span between each gear is larger, and reduction speed ratio is 2 left and right; When the too large gearshift of reduction speed ratio span, there will be larger impact force, cause thus electric current moment maximum, be easy to cause control system to damage.
2) two gear gears are by shaft drive power, and axle should bear torque and bear again weight, therefore quite high to the installation precision requirement of axle, have a little a deviation will cause shaft break of motor.
3) no matter two gear gears are top gear or bottom gear is all three grades of decelerations, and it is best that efficient point in the time of high speed operation (output power is divided by input power) is difficult to reach.
4) gearshift is controlled by electromagnet, because electromagnet can be worked always, certainly will cause like this energy waste.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of gearshift convenient, steady, can effectively raise the efficiency electric motor car gearshift a little.
Technological scheme of the present invention is as follows: a kind of electric motor car gearshift, comprise the main shaft (1) and the countershaft (2) that are arranged in parallel, it is characterized in that: on described main shaft (1), be set with driving sleeve (3), the peripheral empty set three of this driving sleeve (3) one end is kept off gear (4), three gear gears (4) are provided with double reduction driving gear (14), the other end of driving sleeve (3) is connected with output spline housing (5), at the middle part of described driving sleeve (3) empty set second gear (7) and first gear (6) side by side, two ratchet flip sleeves (8) are set between described second gear (7) and double reduction driving gear (14), described pair of ratchet flip sleeve (8) by spline package on driving sleeve (3), the excircle annular groove of two ratchet flip sleeves (8) is connected with shift fork (16), described shift fork (16) is driven by gear pair by stepper motor (17), on the opposing end surface of described second gear (7) and double reduction driving gear (14), be provided with the soldered tooth matching with two ratchet flip sleeves (8), between described first gear (6) and output spline housing (5), be provided with single ratchet flip sleeve (9), this list ratchet flip sleeve (9) by spline package on driving sleeve (3), and single ratchet flip sleeve (9) connects by spring (10) and output spline housing (5), is provided with the soldered tooth matching with single ratchet flip sleeve (9) at described first gear (6) on the end face of output spline housing (5), on described countershaft (2), be set with double reduction driven gear (11), two gear driven gears (12) and a gear driven gear (13), described double reduction driven gear (11) engages with double reduction driving gear (14), two gear driven gears (12) engage with second gear (7), and a described gear driven gear (13) engages with first gear (6).
Adopt above technological scheme, main shaft is fixed on the car body of electric motor car, and output spline housing is connected with the wheel hub of electric motor car.Two ratchet flip sleeves are driven by stepper motor, and only in the time of gearshift, stepper motor is just opened, effectively energy saving.The power of electric vehicle motor passes to three gear gears and double reduction driving gear by input gear, when two ratchet flip sleeves neither engage with second gear, while joint with double reduction driving gear yet, double reduction driving gear drives the rotation of double reduction driven gear, make countershaft, two gear driven gears rotate together with a gear driven gear, two gear driven gears drive second gear idle running, one gear driven gear drives first gear rotation, under the effect of spring force, single ratchet flip sleeve engages with first gear, and rotate with first gear, single ratchet flip sleeve by transmission of power to driving sleeve, make to export spline housing to wheel hub outputting power, the bottom gear of now corresponding electric motor car.
In the time that two ratchet flip sleeves engage with second gear, two gear driven gears drive second gear rotation, one gear driven gear drives first gear rotation, second gear drives driving sleeve rotation by two ratchet flip sleeves, make to export spline housing to wheel hub outputting power, the middling speed gear of now corresponding electric motor car; Because the rotating speed of driving sleeve is higher than the rotating speed of first gear, under the different knockout press effect of rotating speed, the elastic force that single ratchet flip sleeve overcomes spring moves to output spline housing direction, and single ratchet flip sleeve separates with first gear, and first gear and single ratchet flip sleeve are all dallied.
In the time that two ratchet flip sleeves engage with double reduction driving gear, double reduction driving gear drives driving sleeve rotation by two ratchet flip sleeves, makes to export spline housing to wheel hub outputting power, the top gear of now corresponding electric motor car; Meanwhile, two gear driven gears drive second gear idle running, one gear driven gear drives first gear rotation, because the rotating speed of driving sleeve is higher than the rotating speed of first gear, under the different knockout press effect of rotating speed, the elastic force that single ratchet flip sleeve overcomes spring moves to output spline housing direction, and single ratchet flip sleeve separates with first gear, and first gear and single ratchet flip sleeve are all dallied.
As can be seen here, the present invention adopts high, medium and low three gears to carry out transmission, and the reduction speed ratio between each gear can be reduced to 1.5 left and right, shifts gears so convenient, steady, can avoid shifting gears time, there is larger impact force, thereby eliminated because of the maximum disadvantage that causes control system to damage of electric current moment.The present invention adopts axle sleeve transferring power, and main shaft only bears weight, does not bear torque, the weight of whole electric vehicle is all born on main shaft, and the work of motor is not affected, and has reduced so on the one hand difficulty and the precision of assembling, make assembling simpler, efficiency of assembling is higher; On the other hand, can effectively prevent that motor shaft from rupturing.Meanwhile, the present invention only has primary speed-down in the time of top gear, and it is best that the efficient point (output power is divided by input power) when high speed operation can reach, and compared with conventional construction, can improve 4-6 efficient point.
On the output shaft of described stepper motor (17), be set with small gear (18), this small gear (18) engages with the toothrow (20) on declutch shift shaft (19), and described declutch shift shaft (19) is vertical with shift fork (16) fixing.Simple and compact for structure above, be both conducive to arrange and assembling, can effectively improve again the reliability of stepper motor shift fork motion.
Two ends at described pair of ratchet flip sleeve (8) are symmetrically arranged with the first ratchet, this first ratchet is made up of multiple the first ratchets (8a) that distribute by even circumferential, described the first ratchet (8a) is the block structure of triangle, the height that the first ratchet (8a) protrudes from two ratchet flip sleeve (8) end faces reduces gradually by circumferencial direction, the soldered tooth on described second gear (7) or double reduction driving gear (14) can with the laminating that connects of corresponding the first ratchet (8a).
On two ratchet flip sleeves the first ratchet adopt the block structure of triangle, moulding is simple on the one hand, processing and fabricating is easy, intensity is reliable; On the other hand, the end face that the first ratchet protrudes from two ratchet flip sleeves is that working surface is ramp structure, in the time that two ratchet flip sleeves engage with corresponding shift gear, soldered tooth on each the first ratchet and shift gear is fitted face-to-face, carry out transmission by frictional force, not only guarantee the reliability of transmission, and made gearshift easier, convenient, can effectively avoid beating tooth.
Described the first ratchet (8a) is structure as a whole with two ratchet flip sleeves (8), and the working surface of the first ratchet (8a) is arc surface.Above structure is conducive to processing and fabricating, and the working surface of the first ratchet adopts arc surface to engage with corresponding shift gear, and joint is tightr, transmission is more reliable, and separation is very easy to.
On the end face of first gear (6), be provided with the second ratchet at described single ratchet flip sleeve (9), this second ratchet is made up of multiple the second ratchets (9a) that distribute by even circumferential, described the second ratchet (9a) is the block structure of triangle, the height that the second ratchet (9a) protrudes from single ratchet flip sleeve (9) end face reduces gradually by circumferencial direction, the soldered tooth on described first gear (6) can with the second ratchet (9a) laminating that connects.
The second ratchet on single ratchet flip sleeve adopts the block structure of triangle, and moulding is simple on the one hand, and processing and fabricating is easy, and intensity is reliable; On the other hand, the end face that the second ratchet protrudes from single ratchet flip sleeve is that working surface is ramp structure, in the time that single ratchet flip sleeve engages with first gear, soldered tooth on each the second ratchet and first gear is fitted face-to-face, carry out transmission by frictional force, not only guarantee the reliability of transmission, and separated more convenient, quick.As preferably, the working surface of the second ratchet is also arc surface.
On the outer peripheral surface of described single ratchet flip sleeve (9), be fixed with eccentricity balance-weight block (15), utilize centrifugal force can make single ratchet flip sleeve separate with first gear quicker, thereby further improved the convenience of gearshift.
Described eccentricity balance-weight block (15) is ring block structure, and fixes by bolt and single ratchet flip sleeve (9).Above structure on the one hand eccentricity balance-weight block moulding simple, be easy to processing and fabricating, cost is low; On the other hand, eccentricity balance-weight block dismounting is convenient, and it is firm to be connected with single ratchet flip sleeve, and it is very convenient to change eccentricity balance-weight block.
Beneficial effect: when the present invention shifts gears, stepper motor is just worked, effectively energy saving; It is best that efficient point (output power is divided by input power) when high speed operation of the present invention can reach, and it is convenient, steady to shift gears, can avoid shifting gears time, there is larger impact force, thereby eliminated because of the maximum disadvantage that causes control system to damage of electric current moment; The weight of whole electric vehicle is all born on main shaft, and the work of motor is not affected, and has both reduced difficulty and the precision of assembling, can effectively prevent that again motor shaft from rupturing.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of single ratchet flip sleeve.
Fig. 3 is the plan view of Fig. 2.
Fig. 4 is the structural representation of two ratchet flip sleeves.
Fig. 5 is the plan view of Fig. 4.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described:
As shown in Figure 1, the main shaft 1 being connected with electric motor car car body maintains static, and this main shaft 1 parallels with countershaft 2, and countershaft 2 can freely rotate.On described main shaft 1, be set with driving sleeve 3, this driving sleeve 3 can rotate with respect to main shaft 1.The described driving sleeve 3 as shown peripheral empty set three of left end keeps off gear 4, and the right-hand member of this three gears gear 4 arranges double reduction driving gear 14, and double reduction driving gear 14 and three gear gears 4 can be integrative-structures, can be also the split-type structurals being solidly installed.The right-hand member of described driving sleeve 3 is connected with output spline housing 5, output spline housing 5 by spline package on driving sleeve 3, and output spline housing 5 is connected with the wheel hub of electric motor car, in the time that driving sleeve 3 rotates, can drive output spline housing 5 to rotate together, to the wheel hub outputting power of electric motor car.
As shown in Figure 1, Figure 4, Figure 5, at the middle part of driving sleeve 3 empty set second gear 7 and first gear 6 side by side, second gear 7 is positioned at the left side of first gear 6.Two ratchet flip sleeves 8 are set between described second gear 7 and double reduction driving gear 14, this pair of ratchet flip sleeve 8 by spline package on driving sleeve 3.Be symmetrically arranged with the first ratchet at the two ends of described pair of ratchet flip sleeve 8, this first ratchet is made up of multiple the first ratchet 8a that distribute by even circumferential, the first ratchet 8a is structure as a whole with two ratchet flip sleeves 8, the number of the first ratchet 8a is definite according to actual needs, and the present embodiment is preferably 10.Described the first ratchet 8a is the block structure of triangle, and the height that the first ratchet 8a protrudes from two ratchet flip sleeve 8 end faces (i.e. the working surface of the first ratchet 8a) reduces gradually by circumferencial direction, and the working surface of the first ratchet 8a is arc surface.
As shown in Figure 1, Figure 4, Figure 5, in the left side of described second gear 7 and the right side of double reduction driving gear 14 be equipped with the soldered tooth matching with the first ratchet 8a, the number of described soldered tooth equates with the first ratchet 8a, the position of soldered tooth is relative with the first ratchet 8a, the shape of soldered tooth and the first ratchet 8a adapt, and described soldered tooth can engage in relative mode of fitting with the first ratchet 8a.Middle part at described pair of ratchet flip sleeve 8 outer peripheral surfaces has annular groove, this annular groove is connected with shift fork 16, and described shift fork 16 fixes with the end of declutch shift shaft 19, is provided with toothrow 20 on declutch shift shaft 19, this toothrow 20 engages with small gear 18, and small gear 18 is set on the output shaft of stepper motor 17.In the time that stepper motor 17 is opened, the output shaft of stepper motor 17 drives small gear 18 to rotate, small gear 18 drives declutch shift shaft 19 to move along left and right directions by toothrow 20, when declutch shift shaft 19 moves, stir two ratchet flip sleeves 8 by shift fork 16, make two ratchet flip sleeves 8 can left and right slippage on driving sleeve 3, engage with second gear 7 selectively, or engage with double reduction driving gear 14, or separate with second gear 7 and double reduction driving gear 14 simultaneously.
As shown in Figure 1, Figure 2, Figure 3 shows, be provided with single ratchet flip sleeve 9 at first gear 6 and output between spline housing 5, this list ratchet flip sleeve 9 by spline package on driving sleeve 3.Described single ratchet flip sleeve 9 and output arrange spring 10 between spline housing 5, these spring 10 ring sets on main shaft 1, the left end of spring 10 and single ratchet flip sleeve 9 butts, the right-hand member of spring 10 with export spline housing 5 and connect.Be formed with the second ratchet in the left side of described single ratchet flip sleeve 9, this second ratchet is made up of multiple the second ratchet 9a that distribute by even circumferential, the center of circle of the second ratchet circumference that 9a surrounds is on the axis of single ratchet flip sleeve 9, the number of the second ratchet 9a is definite according to actual needs, and the present embodiment is preferably 10.Described the second ratchet 9a is the block structure of triangle, and the height that the second ratchet 9a protrudes from single ratchet flip sleeve 9 end faces (i.e. the working surface of the second ratchet 9a) reduces gradually by circumferencial direction, and the working surface of the second ratchet 9a is arc surface.On the outer peripheral surface of described single ratchet flip sleeve 9, be provided with eccentricity balance-weight block 15, this eccentricity balance-weight block 15 is ring block structure, and fixes by bolt and single ratchet flip sleeve 9.
As shown in Figure 1, Figure 2, Figure 3 shows, be formed with the soldered tooth matching with the second ratchet 9a in the right side of first gear 6, the number of this soldered tooth equates with the second ratchet 9a, the position of soldered tooth is relative with the second ratchet 9a, the shape of soldered tooth and the second ratchet 9a adapt, and described soldered tooth can engage in relative mode of fitting with the second ratchet 9a.
As shown in Figure 1, be set with successively from left to right double reduction driven gear 11, two gear driven gears 12 and a gear driven gear 13 on countershaft 2, double reduction driven gear 11, two gear driven gears 12 and a gear driven gear 13 all coordinate with countershaft 2 by spline.Described double reduction driven gear 11 engages with double reduction driving gear 14, and two gear driven gears 12 engage with second gear 7, and a described gear driven gear 13 engages with first gear 6.
The present invention has high, medium and low three gears, specific as follows:
When two ratchet flip sleeves 8 neither engage with second gear 7, while not engaging with double reduction driving gear 14 yet, double reduction driving gear 14 drives double reduction driven gear 11 to rotate, make countershaft 2, two gear driven gears 12 rotate together with a gear driven gear 13, two gear driven gears 12 drive second gear 7 to dally, one gear driven gear 13 drives first gear 6 to rotate, under the effect of spring 10 elastic force, single ratchet flip sleeve 9 engages with first gear 6, and rotate with first gear 6, single ratchet flip sleeve 9 by transmission of power to driving sleeve 3, make to export spline housing 5 to wheel hub outputting power, the bottom gear of now corresponding electric motor car.
In the time that two ratchet flip sleeves 8 engage with second gear 7, double reduction driving gear 14 drives double reduction driven gear 11 to rotate, countershaft 2, two gear driven gears 12 are rotated together with a gear driven gear 13, two gear driven gears 12 drive second gear 7 to rotate, one gear driven gear 13 drives first gear 6 to rotate, second gear 7 drives driving sleeve 3 to rotate by two ratchet flip sleeves 8, makes to export spline housing 5 to wheel hub outputting power, the middling speed gear of now corresponding electric motor car; Because the rotating speed of driving sleeve 3 is higher than the rotating speed of first gear 6, under the different knockout press effect of rotating speed, the elastic force that single ratchet flip sleeve 9 overcomes spring 10 moves to output spline housing 5 directions, and single ratchet flip sleeve 9 separates with first gear 6, and first gear 6 and single ratchet flip sleeve 9 are all dallied.
In the time that two ratchet flip sleeves 8 engage with double reduction driving gear 14, double reduction driving gear 14 drives driving sleeve 3 to rotate by two ratchet flip sleeves 8, makes to export spline housing 5 to wheel hub outputting power, the top gear of now corresponding electric motor car; Meanwhile, double reduction driving gear 14 drives double reduction driven gear 11 to rotate, countershaft 2, two gear driven gears 12 are rotated together with a gear driven gear 13, two gear driven gears 12 drive second gear 7 to dally, one gear driven gear 13 drives first gear 6 to rotate, because the rotating speed of driving sleeve 3 is higher than the rotating speed of first gear 6, under the different knockout press effect of rotating speed, single ratchet flip sleeve 9 separates with first gear 6, and first gear 6 and single ratchet flip sleeve 9 are all dallied.
Although below by reference to the accompanying drawings the preferred embodiments of the present invention are described; but the invention is not restricted to above-mentioned embodiment; above-mentioned embodiment is only schematic rather than determinate; those of ordinary skill in the art is under enlightenment of the present invention; under the prerequisite without prejudice to aim of the present invention and claim; can make like multiple types and representing; as change flip sleeve ratchet moulding and number; or change combination of flip sleeve and corresponding gear etc., within such conversion all falls into protection scope of the present invention.
Claims (8)
1. an electric motor car gearshift, comprise the main shaft (1) and the countershaft (2) that are arranged in parallel, it is characterized in that: on described main shaft (1), be set with driving sleeve (3), the peripheral empty set three of this driving sleeve (3) one end is kept off gear (4), three gear gears (4) are provided with double reduction driving gear (14), the other end of driving sleeve (3) is connected with output spline housing (5), at the middle part of described driving sleeve (3) empty set second gear (7) and first gear (6) side by side, two ratchet flip sleeves (8) are set between described second gear (7) and double reduction driving gear (14), described pair of ratchet flip sleeve (8) by spline package on driving sleeve (3), the excircle annular groove of two ratchet flip sleeves (8) is connected with shift fork (16), described shift fork (16) is driven by gear pair by stepper motor (17), on the opposing end surface of described second gear (7) and double reduction driving gear (14), be provided with the soldered tooth matching with two ratchet flip sleeves (8), between described first gear (6) and output spline housing (5), be provided with single ratchet flip sleeve (9), this list ratchet flip sleeve (9) by spline package on driving sleeve (3), and single ratchet flip sleeve (9) connects by spring (10) and output spline housing (5), is provided with the soldered tooth matching with single ratchet flip sleeve (9) at described first gear (6) on the end face of output spline housing (5), on described countershaft (2), be set with double reduction driven gear (11), two gear driven gears (12) and a gear driven gear (13), described double reduction driven gear (11) engages with double reduction driving gear (14), two gear driven gears (12) engage with second gear (7), and a described gear driven gear (13) engages with first gear (6).
2. electric motor car gearshift according to claim 1, it is characterized in that: on the output shaft of described stepper motor (17), be set with small gear (18), this small gear (18) engages with the toothrow (20) on declutch shift shaft (19), and described declutch shift shaft (19) is vertical with shift fork (16) fixing.
3. electric motor car gearshift according to claim 1, it is characterized in that: the two ends at described pair of ratchet flip sleeve (8) are symmetrically arranged with the first ratchet, this first ratchet is made up of multiple the first ratchets (8a) that distribute by even circumferential, described the first ratchet (8a) is the block structure of triangle, the height that the first ratchet (8a) protrudes from two ratchet flip sleeve (8) end faces reduces gradually by circumferencial direction, the soldered tooth on described second gear (7) or double reduction driving gear (14) can with the laminating that connects of corresponding the first ratchet (8a).
4. electric motor car gearshift according to claim 3, is characterized in that: described the first ratchet (8a) is structure as a whole with two ratchet flip sleeves (8), and the working surface of the first ratchet (8a) is arc surface.
5. according to the electric motor car gearshift described in claim 1 or 3 or 4, it is characterized in that: the middle part at described pair of ratchet flip sleeve (8) outer peripheral surface has annular groove.
6. electric motor car gearshift according to claim 1, it is characterized in that: on the end face of first gear (6), be provided with the second ratchet at described single ratchet flip sleeve (9), this second ratchet is made up of multiple the second ratchets (9a) that distribute by even circumferential, described the second ratchet (9a) is the block structure of triangle, the height that the second ratchet (9a) protrudes from single ratchet flip sleeve (9) end face reduces gradually by circumferencial direction, the soldered tooth on described first gear (6) can with the second ratchet (9a) laminating that connects.
7. electric motor car gearshift according to claim 6, is characterized in that: on the outer peripheral surface of described single ratchet flip sleeve (9), be fixed with eccentricity balance-weight block (15).
8. electric motor car gearshift according to claim 7, is characterized in that: described eccentricity balance-weight block (15) is ring block structure, and fixes by bolt and single ratchet flip sleeve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410075329.4A CN103821881B (en) | 2014-03-04 | 2014-03-04 | Power truck gearshift mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410075329.4A CN103821881B (en) | 2014-03-04 | 2014-03-04 | Power truck gearshift mechanism |
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| CN103821881A true CN103821881A (en) | 2014-05-28 |
| CN103821881B CN103821881B (en) | 2016-06-01 |
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| CN201410075329.4A Expired - Fee Related CN103821881B (en) | 2014-03-04 | 2014-03-04 | Power truck gearshift mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107707074A (en) * | 2017-10-11 | 2018-02-16 | 江苏东航空机械有限公司 | A kind of motorcycle high-speed electric expreess locomotive |
| CN107725693A (en) * | 2017-11-15 | 2018-02-23 | 张家港川梭车业有限公司 | One kind two keeps off variable speed drive |
| CN108506469A (en) * | 2018-06-30 | 2018-09-07 | 如皋市招财牛车业有限公司 | Electric vehicle gearshift |
| CN113062951A (en) * | 2021-04-25 | 2021-07-02 | 杭州新朝传动有限公司 | Variable frequency gear speed reducer |
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| CN203717799U (en) * | 2014-03-04 | 2014-07-16 | 李红波 | Gear shift mechanism of electric vehicle |
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| CN103016644A (en) * | 2012-12-07 | 2013-04-03 | 重庆隆旺机电有限责任公司 | Three-gear transmission of electric vehicle |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107707074A (en) * | 2017-10-11 | 2018-02-16 | 江苏东航空机械有限公司 | A kind of motorcycle high-speed electric expreess locomotive |
| CN107725693A (en) * | 2017-11-15 | 2018-02-23 | 张家港川梭车业有限公司 | One kind two keeps off variable speed drive |
| CN108506469A (en) * | 2018-06-30 | 2018-09-07 | 如皋市招财牛车业有限公司 | Electric vehicle gearshift |
| CN113062951A (en) * | 2021-04-25 | 2021-07-02 | 杭州新朝传动有限公司 | Variable frequency gear speed reducer |
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| CN103821881B (en) | 2016-06-01 |
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