CN206802240U - Suitable for the two-gear automatic speed changing case of electric car - Google Patents
Suitable for the two-gear automatic speed changing case of electric car Download PDFInfo
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- CN206802240U CN206802240U CN201720476975.0U CN201720476975U CN206802240U CN 206802240 U CN206802240 U CN 206802240U CN 201720476975 U CN201720476975 U CN 201720476975U CN 206802240 U CN206802240 U CN 206802240U
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Abstract
The utility model discloses a kind of two-gear automatic speed changing case suitable for electric car, including casing, gear and shift control mechanism；Gear includes input shaft, output shaft and jackshaft, input driven gear, two gear driving gear and a gear driving gear are installed with jackshaft, there is the input driving tooth engaged with input driven gear on input shaft, kink has engaged with two gear driving gear two gear driven gears and the gear driven gear engaged with a gear driving gear on output shaft, being provided with output shaft can be along its synchronizer in axial sliding, synchronizer is controlled between a gear driven gear and two gear driven gears by shift control mechanism；When synchronizer is connected with a gear driven gear, the synchronous rotation of output shaft, when synchronizer is connected with two gear driven gears, the synchronous rotation of output shaft.Structure is novel, compact and reliable, good operating stability, has more excellent power combination, preferably handling and longer course continuation mileage.
Description
Technical field
The utility model belongs to electric automobile gear-box technical field, and in particular to a kind of two gears suitable for electric car are certainly
Dynamic gearbox.
Background technology
Electric automobile refers to, using vehicle power as power, be travelled with power wheel, meets road traffic, security legislation
The vehicle of requirements.Because effect on environment relatively traditional combustion engine automobile is small, its prospect is had an optimistic view of extensively, but current skill
Art is still immature.For pure electric automobile is with respect to fuel-engined vehicle, main difference is that four big parts：Motor, speed regulating control
Device (gearbox), electrokinetic cell and onboard charger, the quality discrepancy of pure electric automobile are mainly dependent on this four big part, its
Value height also depends on the quality of this four big part.
The speed setting controller of traditional electric automobile only has a gear, i.e., only one fast ratio, works as galloping
When, the rotating speed of motor is high, understands near or above 10,000 turns per minute, thus to the manufacture of travelling gear and bearing
Required precision is high, causes the speed setting controller manufacturing cost of electric automobile to remain high, and the service life of parts compared with
It is short.When motor high-speed rotation, efficiency can be reduced substantially with moment of torsion, moreover, the speed setting controller of only one gear
Speed is than being difficult to requirement of the middle-and-high-ranking electric automobile to maximum speed, peak acceleration and maximum speed.Therefore, traditional speed governing control
Device processed is not the gearbox that can truly realize gearshift function, and urgent need design is a to be applied to gearshift function
The gearbox of electric automobile.
Utility model content
To solve above technical problem, the utility model provides a kind of two-gear automatic speed changing case suitable for electric car, tool
There are two gear speed changes, structure is reliable, good operating stability.
To achieve the above object, technical solutions of the utility model are as follows：
A kind of two-gear automatic speed changing case suitable for electric car, it is characterized by：Including casing, it is provided with and becomes in the casing
Fast mechanism and shift control mechanism；The gear includes the input shaft that is coaxially disposed and output shaft and parallel with input shaft
Jackshaft, be installed with the jackshaft input driven gear, two gear driving gear and one gear driving gear, the input
There is the input driving tooth engaged with input driven gear, kink has on the output shaft engages with two gear driving gear on axle
Two gear driven gears and with one gear driving gear engage one gear driven gear, synchronizer is installed on the output shaft, this
Synchronizer is controlled by shift control mechanism, can be connected with a gear driven gear or two gear driven gears；When synchronizer and one are kept off
When driven gear connects, output shaft and a gear driven gear synchronous axial system, when synchronizer is connected with two gear driven gears, output
Axle and two gear driven gear synchronous axial systems.
Using above structure, the external diameter of a gear driving gear is less than two gear driving gear, and the external diameter of a gear driven gear is big
Driven gear is kept off in two, when output shaft is driven by a gear driven gear compared with being kept off by two when driven gears drive, output shaft
When rotating speed when being driven by the former is driven less than when being driven by the latter, moment of torsion is but more than by the latter；Pass through shift control mechanism control
Synchronizer processed, synchronizer can either be made not to be connected with a gear driven gear and two gear driven gears, output shaft does not rotate (neutral),
Synchronizer can also be made to keep off driven gear with one to be connected, output shaft and a gear driven gear synchronous axial system (gear), can also be made
Synchronizer is connected with two gear driven gears, with two gear driven gear synchronous axial systems (two gears)；Power passes to centre by input shaft
Axle, then there is jackshaft to pass to output shaft, make input shaft and output shaft on the same axis, be easy to electric automobile drive mechanism
Arrangement, structure is reliable, good operating stability, and the switching of two gears makes electric automobile have more excellent power combination, preferably
Handling and longer course continuation mileage.
As preferred：The one gear driven gear has the locking protuberance of conical ring, the lock tab by synchronizer side
The outer radial for going out portion is gradually reduced close to the direction of synchronizer, synchronous with being adapted with locking protuberance on the synchronizer
Conical ring, the interior direction radially adjacent to a gear driven gear of the synchronous conical ring gradually increase, and the locking protuberance can be embedded in
In synchronous conical ring, and abutted with it.Using above structure, when locking protuberance abuts with synchronous conical ring, a gear driven gear
Synchronizer and the synchronous rotation of output shaft can be driven, it is simple and reliable for structure.
As preferred：The two gear driven gear has the synchronous groove of annular by synchronizer side, on the synchronizer
With the lock ring being adapted with synchronous groove, the interior direction radially adjacent to two gear driven gears of the lock ring gradually increases, the lock
Ring can be embedded in synchronous groove, and be abutted with it.Using above structure, when lock ring abuts with synchronous groove, two gear driven gears
Synchronizer and the synchronous rotation of output shaft can be driven, it is simple and reliable for structure.
Preferably, the shift control mechanism includes：Actuating motor, it is arranged on the casing；Shift fork, its is removable
It is arranged on dynamicly in the casing, and be connected with synchronizer；Speed change hub, it is rotatably arranged in the casing, the speed change
There is chute on the outer peripheral face of hub；Sliding block, it is embedded in the chute, and is connected with the shift fork；And actuator transmission
Component, it is located in the casing, and is connected respectively with the actuating motor and sliding block；When actuating motor is driven by actuator
When component drives the rotation of speed change hub, sliding block slides in chute, drives shift fork to be moved in the axis of casing interior edge speed change hub, makes same
Step device slides along output shaft.Using above structure, the rotational angle of speed change hub can be accurately controlled, and then accurately controls shift fork
Slide, synchronizer is connected with a gear driven gear or two gear driven gears, or be neither connected with a gear driven gear, and not
It is connected with two gear driven gears.
As preferred：The actuator transmission component include the actuator gear shaft one that is coaxially disposed and triple gear, with
The parallel actuator gear shaft two of actuator gear shaft one and the coaxially connected speed change hub gear on speed change hub；The execution
The motor shaft of device gear shaft one and actuating motor is coaxially connected, has actuator one-level driving tooth on the actuator gear shaft one,
The actuator one-level driven gear engaged with actuator one-level driving tooth, the execution are installed with the actuator gear shaft two
There is actuator two level driving tooth on device gear shaft two；The triple gear is installed in rotation on actuator gear shaft one,
The triple gear has the first teeth portion, the second teeth portion and the 3rd teeth portion, and first teeth portion engages with actuator two level driving tooth,
3rd teeth portion engages with speed change hub gear, the axis of the speed change hub gear and the diameter parallel of triple gear.Use with
Upper structure, the motor shaft of actuating motor drive actuator gear shaft one to rotate, actuator gear shaft one by actuator one-level from
Moving gear drives actuator gear shaft two to rotate, and actuator gear shaft two drives triple gear to rotate, and triple gear drives speed change
Hub pinion rotation, final speed change hub gear drives speed change hub to rotate, reliable and stable, can be more accurately while realizing and slow down
Control the rotational angle of speed change hub.
As preferred：The actuator transmission component also includes sensor cluster, and the sensor cluster includes angle sensor
Device and sensor transmission component；The sensor transmission component includes sensor tooth wheel shaft and sensor two level driven gear, should
The axis of sensor tooth wheel shaft and diameter parallel of the axis of sensor two level driven gear with actuator gear shaft one, in institute
State the sensor one-level driven gear for being installed with sensor tooth wheel shaft and being engaged with the second teeth portion, the sensor tooth wheel shaft；It is described
Angular transducer is arranged on casing, and for the rotational angle of detection sensor two level driven gear.Using above structure, surely
It is fixed reliable, drive sensor one-level driven gear to rotate when triple gear rotates, sensor one-level driven gear drives sensor
Gear shaft rotates, and sensor tooth wheel shaft drives sensor two level driven gear to rotate, then passes through angular transducer detection sensor
The rotation situation of the central shaft of two level driven gear, the rotation situation of speed change hub can be accurately determined, and then accurately obtain shift fork
Positional information.
As preferred：The chute includes two sections of flat segments being oppositely arranged and two sections of deviation sections being oppositely arranged, described
Flat segments and deviation section are arranged alternately, and have the arc transition section connected with the two between the flat segments and deviation section；It is described inclined
Trisection includes straight line branch section and is oppositely arranged two sections of oblique line branch sections of the straight line branch section both sides, one end of two sections of oblique line branch sections
One end adjacent thereto with straight line branch section connects respectively, and the one end of the other end respectively with adjacent arc transition section connects, described
There is angle between the bearing of trend of straight line branch section and the bearing of trend of flat segments.Using above structure, speed change hub can pass through
The two groups of flat segments and deviation section of chute coordinate with sliding block, and speed change hub moves with axis of the movable slider along speed change hub, also, circular arc
Changeover portion can effectively reduce the impact to chute when sliding block slides in the chute of speed change hub, and then reduce the abrasion of chute,
Increase the service life.
As preferred：The support ring to stretch out along its axis direction, institute are provided with an end face of the speed change hub
State speed change hub gear to be set in the support ring, connected between the speed change hub gear and speed change hub by an at least bearing pin.Adopt
With above structure, speed change hub gear support is made on speed change hub by support ring, then speed change hub is made by speed change hub tooth by bearing pin
Wheel drives (one end of bearing pin is connected with speed change hub gear, and the other end is connected with speed change hub), and keeps and speed change hub gear synchronous
Rotate.
As preferred：The sliding block includes embedded division, and the embedded division is the prismatic structure that section is rhombus, the insertion
There is the fillet being adapted with arc transition section at the seamed edge that portion contacts with arc transition section.Using above structure, rhombus
The sliding block of prism-shaped can slide in the chute of speed change hub, and all seamed edges are rounded down (arc transition), make it from cunning
The flat segments of groove start to contact with chute face into deviation section, substantially reduce the impact to chute, especially reduce pair
The impact of the flat segments of chute and the intersection of deviation section, effectively reduces the abrasion of chute, and extend speed change hub uses the longevity
Life, improve reliability and ride comfort that sliding block coordinates with slide.
As preferred：The one gear driven gear and two gear driven gears are installed in rotation on defeated by needle bearing
On shaft.Using above structure, by being provided with needle bearing, a gear driven gear and two gear driven gears had both made it reliably
On output shaft, it is set freely to be rotated along output shaft again.
Compared with prior art, the beneficial effects of the utility model are：
Using the two-gear automatic speed changing case provided by the utility model suitable for electric car, structure is novel, compact and reliable,
Good operating stability, there is more excellent power combination, preferably handling and longer course continuation mileage.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the enlarged drawing at A in Fig. 1；
Fig. 3 is the enlarged drawing at Fig. 1 B；
Fig. 4 is the enlarged drawing at Fig. 1 C；
Fig. 5 is the dimensional structure diagram at one visual angle of speed change hub；
Fig. 6 is the dimensional structure diagram at another visual angle of speed change hub；
Fig. 7 is the planar structure schematic diagram of speed change hub；
Fig. 8 is Fig. 7 right view；
Fig. 9 is Fig. 7 left view；
Figure 10 is the dimensional structure diagram of sliding block；
Figure 11 is the planar structure schematic diagram of sliding block；
Figure 12 is the sectional view of sliding block；
Figure 13 is the matching relationship schematic diagram of sliding block and chute.
Embodiment
The utility model is described in further detail with accompanying drawing with reference to embodiments.
As shown in figure 1, a kind of two-gear automatic speed changing case suitable for electric car, including casing 1, it is provided with the casing 1
Gear and shift control mechanism, gear is controlled to realize two gear gearshift functions by shift control mechanism.
Refer to Fig. 1 and Fig. 3, the gear includes input shaft 8, output shaft 9 and jackshaft 10, the input shaft 8, defeated
Shaft 9 and jackshaft 10 are rotatably supported in casing 1 by bearing, wherein, input shaft 8 and output shaft 9 are coaxially disposed,
Jackshaft 10 is parallel to input shaft 8 and output shaft 9.
Input driven gear 11, the gear driving gear 13 of two gear driving gear 12 and one are installed with the jackshaft 10,
There is the input driving tooth 81 engaged with input driven gear 11 on the input shaft 8.Kink has two gears on the output shaft 9
Driven gear 14 and one keeps off driven gear 15, and the gear driven gear 15 and two keeps off driven gear 14 and installed by needle bearing
On output shaft 9, wherein, a gear driven gear 15 engages with a gear driving gear 13, and two gear driven gear 14 and two gears are actively
Gear 12 engages.
Input shaft 8 rotates, and drives input driven gear 11 to rotate by inputting driving tooth 81, and then a gear driving gear 13
Kept off with two gear driving gear 12 by jackshaft 10 and the input synchronous axial system of driven gear 11, final gear driving gear 13 and two
Driving gear 12 drives a gear driven gear 15 and two to keep off driven gear 14 and rotated respectively.
Synchronizer 16 is installed on output shaft 9, the synchronizer 16 keeps off driven gear positioned at a gear driven gear 15 and two
Between 14, and controlled by shift control mechanism；When synchronizer 16 keeps off driven tooth under the control that shift control mechanism controls with one
During the connection of wheel 15, output shaft 9 and one keeps off the synchronous axial system of driven gear 15, when synchronizer 16 is connected with two gear driven gears 14,
Output shaft 9 and two keeps off the synchronous axial system of driven gear 14.
Specifically, Fig. 4 is referred to, a gear driven gear 15 has the lock tab of conical ring by the side of synchronizer 16
Go out portion 151, the outer radial of the locking protuberance 151 is gradually reduced close to the direction of synchronizer 16, is had on the synchronizer 16
The synchronous conical ring 161 adaptable with locking protuberance 151, the interior of the synchronous conical ring 161 keep off driven gear 15 radially adjacent to one
Direction gradually increases, and the locking protuberance 151 can be embedded in synchronous conical ring 161, and is abutted with it, the tooth hub of synchronizer 16
163 are arranged on output shaft 9, and the tooth hub 163 has internal spline, has external splines, the exportable axle of axle 9 of tooth hub 163 on output shaft 9
To slip, therefore, under the drive of shift fork 3, its synchronous conical ring 161 can abut synchronizer 16 with locking protuberance 151, during abutting
One gear driven gear 15 can drive the 9 synchronous rotation of synchronizer 16 and output shaft.
The two gear driven gear 14 has the synchronous groove 141 of annular by the side of synchronizer 16, on the synchronizer 16
With the lock ring 162 being adapted with synchronous groove 141, the interior direction radially adjacent to two gear driven gears 14 of the lock ring 162 is gradual
Increase, the lock ring 162 can be embedded in synchronous groove 141, and is abutted with it, when under drive of the synchronizer 16 in shift fork 3, it is locked
Ring 162 can be embedded in synchronous groove 141, and is abutted with synchronous groove 141, and two gear driven gears 14 can drive synchronizer 16 during abutting
With 9 synchronous rotation of output shaft.
Fig. 1 and Fig. 2 are referred to, the shift control mechanism includes the actuating motor 5 being arranged on casing 1 and is respectively provided with
Speed change hub 2, shift fork 3, actuator transmission component 4, sensor cluster 6 and sliding block 7 in casing 1.Wherein, pacify in casing 1
Equipped with shift fork axle 31, the both ends of shift fork axle 31 are separately fixed on casing 1, and the shift fork 3 can slide along the shift fork axle 31；Institute
To state and support shaft 22 is installed in casing 1, the speed change hub 2 rotates around along the support shaft 22, also, on the outer peripheral face of speed change hub 2
With chute 21, the sliding block 7 being adapted with chute 21 is installed on shift fork 3, the sliding block 7 is embedded in chute 21.When performing electricity
When machine 5 drives the rotation of speed change hub 2 by actuator transmission component 4, sliding block 7 slides in chute 21, enters to drive shift fork 3 along shift fork
Axle 31 slides, and shift fork 3 drives synchronizer 16 to move, and then realizes the switching between a gear, two gears and neutral.Meanwhile pass through biography
Sensor component 6 can detect the working condition of actuator transmission component 4, and then determine the position of shift fork 3, real-time ECU feedback letters
Breath.
Fig. 2 is referred to, the actuator transmission component 4 includes the actuator gear shaft 1 and triple gear being coaxially disposed
43rd, the actuator gear shaft two 42 parallel with actuator gear shaft 1 and the coaxially connected speed change hub tooth on speed change hub 2
Wheel 44.
The motor shaft 51 of the actuator gear shaft 1 and actuating motor 5 is coaxially connected, its one close to motor shaft 51
End is supported on casing 1 by bearing, has actuator one-level driving tooth 411 on the actuator gear shaft 1.
The actuator gear shaft 2 42 is supported on casing 1 by bearing, is installed with actuator gear shaft 2 42
The actuator one-level driven gear 45 engaged with actuator one-level driving tooth 411, have on the actuator gear shaft 2 42 and perform
Device two level driving tooth 421.
One end of the triple gear 43 is installed in rotation on actuator gear shaft 1 away from motor shaft by bearing
51 one end, the other end are rotatably supported on casing 1, and middle part is supported on casing 1 by same bearing, the triple gear
43 have the first teeth portion 431, the second teeth portion 432 and the 3rd teeth portion 433, first teeth portion 431 and actuator two level driving tooth
421 engagements, the 3rd teeth portion 433 engage with speed change hub gear 44, axis and the triple gear 43 of the speed change hub gear 44
Diameter parallel.
Actuating motor 5 works, and the motor shaft 51 of the actuating motor 5 drives actuator gear shaft 1 to rotate, actuator tooth
Wheel shaft 1 drives actuator one-level driven gear 45 to rotate by actuator one-level driving tooth 411, actuator one-level driven tooth
Wheel 45 drives actuator gear shaft 2 42 to rotate, and actuator gear shaft 2 42 drives three by actuator two level driving tooth 421
Gear 43 rotates, and triple gear 43 drives speed change hub gear 44 to rotate by the 3rd teeth portion 433, because speed change hub gear 44 is with becoming
Fast hub 2 is coaxially connected, and speed change hub gear 44 drives the synchronous axial system of speed change hub 2, and sliding block 7 slides in chute 21, and then drives and dial
Fork 3 slides along shift fork axle 31, and shift fork 3 drives synchronizer 16 to move.
When synchronizer 16 is neither connected with a gear driven gear 15, and is not connected with two gear driven gears 14, output shaft 9
Do not rotate, a gear driven gear 15 and two keeps off driven gear 14 and dallied, and is now neutral.When synchronizer 16 and one keeps off driven gear
During 15 connection, output shaft 9 and one keeps off the synchronous axial system of driven gear 15, and two gear driven gears 14 dally, and is now a gear.Work as synchronization
When device 16 is connected with two gear driven gears 14, output shaft 9 and two keeps off the synchronous axial system of driven gear 14, and a gear driven gear 15 is empty
Turn, be now two gears.
Fig. 1 and Fig. 2 are referred to, the sensor cluster 6 includes angular transducer 61 and sensor transmission component 62, described
Sensor transmission component 62 includes sensor tooth wheel shaft 621 and sensor two level driven gear 622, the sensor tooth wheel shaft 621
Axis and sensor two level driven gear 622 diameter parallel of the axis with actuator gear shaft 1, in the sensing
The sensor one-level driven gear 623 engaged with the second teeth portion 432, the sensor tooth wheel shaft 621 are installed with device gear shaft 621
It is upper to be installed with the sensor two level driving tooth 621a engaged with sensor two level driven gear 622, the angular transducer 61
On casing 1, the central shaft 622a of sensor two level driven gear 622 is penetrated in angular transducer 61, and angular transducer 61 is logical
The rotational angle for crossing inspection center axle 622a can determine the rotational angle of speed change hub 2.
Specifically, when triple gear 43 rotates, 623 turns of sensor one-level driven gear is driven by the second teeth portion 432
Dynamic, sensor one-level driven gear 623 drives sensor tooth wheel shaft 621 to rotate, and sensor tooth wheel shaft 621 drives sensor two level
Driven gear 622 rotates, then the rotation of the central shaft 622a by the detection sensor two level driven gear 622 of angular transducer 61
Angle, the rotational angle of speed change hub 2 can be accurately determined after conversion, and then accurately obtain the positional information of shift fork 3, and to
ECU feeds back.
Fig. 1, Fig. 2, Fig. 4~Fig. 9 and Figure 13 are referred to, the overall speed change hub 2 is in cylindrical, in the speed change hub 2
Central through hole 23, axis extension of the central through hole 23 along speed change hub 2 are provided with, and passes the both ends of speed change hub 2, speed change hub 2
Can be along an axis of rotation by central through hole 23.
The support ring 24 to stretch out along its axis direction, i.e. support ring are provided with an end face of the speed change hub 2
24 is outwardly, and three pin shaft holes 25 of circular array distribution are provided with around the support ring 24.It can be covered in support ring 24
If a speed change hub gear 44, meanwhile, the speed change hub gear 44 keeps synchronous axial system by three bearing pins 17 and speed change hub 2, i.e.,
One end of bearing pin 17 is connected with speed change hub gear 44, and other end insertion pin shaft hole 25 is connected with speed change hub 2, and speed change hub gear 44 is logical
Crossing bearing pin 17 makes drive speed change hub 2 be rotated along rotating shaft 22.Also, lightening grooves 27 are additionally provided with this end face of speed change hub 2,
The lightening grooves 27 are curved.
The annular to be extended internally along its axis direction is provided with an end face of the speed change hub 2 away from support ring 24
Deep gouge 28, the deep gouge 28 can effectively reduce the weight of speed change hub 2.Also, it is provided with circular array in deep gouge 28 to be distributed
Reinforcement 26, by setting reinforcement 26 to ensure the structural strength of speed change hub 2.In addition, also set on this end face
There are lightening grooves 27, the lightening grooves 27 are equally curved, further to reach weight loss effect while structural strength is ensured, meet
Lightweight requirements.
There is a circle chute 21, the chute 21 includes two sections of flat segments being oppositely arranged on the outer peripheral face of the speed change hub 2
211 and two sections of deviation sections 212 being oppositely arranged, the flat segments 211 and deviation section 212 be arranged alternately, the flat segments 211 and partially
There is the arc transition section 213 connected with the two, by the design of arc transition section 213, sliding block 7 is in circular arc between trisection 212
Trough wall surface during changeover portion 213 with chute 21 contacts, and can effectively reduce when sliding block 7 slides in the chute 21 of speed change hub to cunning
The impact of groove 21, and then reduce the abrasion of chute 21, increase the service life.
Specifically, the deviation section 212 includes straight line branch section 212b and is oppositely arranged straight line branch section 212b both sides
Two sections of oblique line branch sections 212a, two sections of oblique line branch section 212a one end connect with one end adjacent thereto straight line branch section 212b respectively
Logical, the one end of the other end respectively with adjacent arc transition section 213 connects, the bearing of trend of the straight line branch section 212b and straight
There is angle between the bearing of trend of section 211.
In addition, being respectively provided with an installation gap 22 in the edge of 2 two end faces of speed change hub, the installation gap 22 divides
Do not connected with corresponding straight line branch section 212b, by installation gap 22 in order to sliding block 7 is easily fitted into chute 21.
Sliding block 7 is located in the flat segments 211 of speed change hub 2, and when speed change hub 2 rotates, sliding block 7 enters from flat segments 211 to be justified
The displacement relative to the axis direction of speed change hub 2 takes place in arc changeover portion 213, sliding block 7, and sliding block 7 is entered by arc transition section 213
The straight line branch section 212b of deviation section 212, sliding block 7 continue relative to the axis direction displacement of speed change hub 2, are set until shift fork 3 reaches
Maximum displacement untill, speed change hub 2 stops operating, when sliding block 7 is located at starting point and stop in chute 21, output gear be respectively
One gear and two gears.
Figure 10~Figure 11 is referred to, the sliding block 7 includes integrally formed drive division 73, limiting section 72 and embedded division 71,
The drive division 73, limiting section 72 and embedded division 71 are coaxially disposed.Wherein, drive division 73 is used to be connected with shift fork 3, drives shift fork
3 motions；Embedded division 71 can be embedded in chute 21, and be slidably matched with chute 21, to drive the part with chute 21 to move；And limit
Position portion 72 is used for spacing slide unit, the embedded division 71 of slide unit is embedded in chute 21 and is closely connect without the bottom land with chute 21
Touch, ensure that the smoothness being slidably matched.
The embedded division 71 is column structure, and the embedded division 71 section vertical with its axis direction is rhombus, specifically
Say, embedded division 71 is in quadrangular structure, also, the seamed edge of the embedded division 71 is arc transition, i.e. the four of embedded division 71 rib
There is the fillet 711 being adapted with arc transition section 213 on side.Respectively there is one in the both sides of mounting hole 74 positioned at embedded division 71
Lightening hole 75, a side end face of the embedded division 71 away from limiting section 72 are in circular arc concave inward structure, pass through lightening hole 75 and circular arc
Indent design realizes loss of weight while structural strength is ensured.
Embedded division 71 is embedded in chute 21, and embedded division 71 connects in the flat segments 211 and the cell wall of chute 21 of chute 21 for line
Touch, because the direction of motion of embedded division 71 is parallel with the long axis direction of flat segments 211, embedded division 71 slides in flat segments 211
The part with chute 21 can't be driven to move, therefore, embedded division 71 is minimum to the active force of the cell wall of chute 21, substantially will not
Wear chute 21.When embedded division 71 enters from flat segments 211 enters deviation section 212 by arc transition section 213, due to deviation section
212 long axis direction has angle with the direction of motion of embedded division 71, and embedded division 71 significantly carries to the active force of the cell wall of chute 21
Height, it is the moment especially contacted in embedded division 71 with arc transition section 213, maximum to the impulsive force of cell wall, and due to embedded division 71
The seamed edge contacted with arc transition section 213 is rounded down 711, and therefore, the embedded division 71 contacts with the trough wall surface of chute 21, i.e., embedding
The fillet 711 for entering portion 71 contacts with the trough wall surface of arc transition section 213, and embedded division 71 acts on the side of the cell wall of deviation section 212
Trough wall surface of the face also with deviation section 212 contacts, and substantially reduces embedded division 71 in arc transition section 213 and deviation section 212 pair
The pressure (impact strength) of cell wall, effectively reduces the abrasion to chute 21, increases the service life, also, greatly improve sliding block 7
The reliability and ride comfort being slidably matched with chute 21.When embedded division 71 is in deviation section 212, embedded division 71 acts on deviation section
The one side of 212 cell walls contacts with the cell wall retaining surface of deviation section 212, effectively reduces the abrasion to chute 21.
End face of the limiting section 72 along drive division 73 is outwardly, the limiting section 72 is hung down with the axis direction of embedded division 71
Straight section is ellipse, and the minor axis length in the section is more than the width of chute 21, can ensure that the only insertion of embedded division 71 is slided
Groove 21.Limiting section 72 is respectively provided with chamfering 76 by the both ends of the one side of drive division 73.
The drive division 73 section vertical with the axis direction of embedded division 71 is in decussate texture, and its area of section is less than limit
The area of section in position portion 72.Also, the sliding block has the mounting hole 74 of insertion, and the mounting hole 74 is through embedded division 71, spacing
Portion 72 and drive division 73, by the mounting hole 74, sliding block 7 is fixedly connected with shift fork 3, and sliding block 7 is realized under the drive of speed change hub 2
Shift fork 3.The mounting hole 74 is located at the cylindrical structure of limiting section 72 and the part of drive division 73, and the mounting hole 74 is positioned at embedding
The area of section for entering the part of portion 71 is more than the area of section for being located at limiting section 72 and the part of drive division 73, the mounting hole of embedded division 71
74 expand to realize loss of weight.
Finally it should be noted that foregoing description is only preferred embodiment of the present utility model, the common skill of this area
Art personnel on the premise of without prejudice to the utility model aims and claim, can make under enlightenment of the present utility model
Expression, such conversion are each fallen within the scope of protection of the utility model as multiple types.
Claims (10)
- A kind of 1. two-gear automatic speed changing case suitable for electric car, it is characterised in that：Including casing (1), set in the casing (1) There are gear and shift control mechanism；The gear includes the input shaft (8) and output shaft (9) and the jackshaft parallel with input shaft (8) being coaxially disposed (10) input driven gear (11), two gear driving gear (12) and a gear driving gear, are installed with the jackshaft (10) (13), there is the input driving tooth (81) engaged with input driven gear (11), in the output shaft on the input shaft (8) (9) kink has engaged with two gear driving gear (12) two gear driven gears (14) and keeps off what driving gear (13) engaged with one on One gear driven gear (15), is provided with synchronizer (16), the synchronizer (16) is by shift control mechanism control on the output shaft (9) System, it can be connected with a gear driven gear (15) or two gear driven gears (14)；When synchronizer (16) is connected with a gear driven gear (15), output shaft (9) and gear driven gear (15) synchronous axial system, When synchronizer (16) is connected with two gear driven gears (14), output shaft (9) and two gear driven gear (14) synchronous axial systems.
- 2. it is applied to the two-gear automatic speed changing case of electric car according to claim 1, it is characterised in that：The one gear driven tooth Wheel (15) has the locking protuberance (151) of conical ring by synchronizer (16) side, and the outer radial of the locking protuberance (151) leans on The direction of nearly synchronizer (16) is gradually reduced, synchronous with being adapted with locking protuberance (151) on the synchronizer (16) Conical ring (161), the interior direction radially adjacent to a gear driven gear (15) of the synchronous conical ring (161) gradually increase, the locking Protuberance (151) can be embedded in synchronous conical ring (161), and is abutted with it.
- 3. it is applied to the two-gear automatic speed changing case of electric car according to claim 2, it is characterised in that：The two gears driven tooth Wheel (14) has the synchronous groove (141) of annular by synchronizer (16) side, has and synchronous groove on the synchronizer (16) (141) adaptable lock ring (162), the interior direction radially adjacent to two gear driven gears (14) of the lock ring (162) gradually increase, The lock ring (162) can be embedded in synchronous groove (141), and is abutted with it.
- 4. it is applied to the two-gear automatic speed changing case of electric car according to any one of claims 1 to 3, it is characterised in that institute Stating shift control mechanism includes：Actuating motor (5), it is arranged on the casing (1)；Shift fork (3), it is movably disposed in the casing (1), and is connected with synchronizer (16)；Speed change hub (2), it is rotatably arranged in the casing (1), has chute on the outer peripheral face of the speed change hub (2) (21)；Sliding block (7), it is embedded in the chute (21), and is connected with the shift fork (3)；AndActuator transmission component (4), it is located in the casing (1), and connects respectively with the actuating motor (5) and sliding block (7) Connect；When actuating motor (5) drives speed change hub (2) to rotate by actuator transmission component (4), sliding block (7) is in chute (21) Slide, drive shift fork (3) to be moved in the axis of casing (1) interior edge speed change hub (2), synchronizer (16) is slided along output shaft (9).
- 5. it is applied to the two-gear automatic speed changing case of electric car according to claim 4, it is characterised in that：The actuator transmission Component (4) includes the actuator gear shaft one (41) being coaxially disposed and triple gear (43), put down with actuator gear shaft one (41) Capable actuator gear shaft two (42) and the coaxially connected speed change hub gear (44) on speed change hub (2)；The actuator gear shaft one (41) and the motor shaft (51) of actuating motor (5) are coaxially connected, the actuator gear shaft one (41) there is actuator one-level driving tooth (411) on, be installed with the actuator gear shaft two (42) and actuator one-level The actuator one-level driven gear (45) of driving tooth (411) engagement, has actuator two level on the actuator gear shaft two (42) Driving tooth (421)；The triple gear (43) is installed in rotation on actuator gear shaft one (41), and the triple gear (43) has first Teeth portion (431), the second teeth portion (432) and the 3rd teeth portion (433), first teeth portion (431) and actuator two level driving tooth (421) engage, the 3rd teeth portion (433) is engaged with speed change hub gear (44), the axis and three of the speed change hub gear (44) Join the diameter parallel of gear (43).
- 6. it is applied to the two-gear automatic speed changing case of electric car according to claim 5, it is characterised in that：The actuator transmission Component (4) also includes sensor cluster (6), and the sensor cluster (6) includes angular transducer (61) and sensor transmission component (62)；The sensor transmission component (62) includes sensor tooth wheel shaft (621) and sensor two level driven gear (622), the biography The axis of sensor gear shaft (621) and the axis of sensor two level driven gear (622) with actuator gear shaft one (41) Diameter parallel, the sensor one-level driven tooth engaged with the second teeth portion (432) is installed with the sensor tooth wheel shaft (621) Take turns (623), the sensor tooth wheel shaft；The angular transducer (61) is arranged on casing (1), and for the rotation of detection sensor two level driven gear (622) Angle.
- 7. it is applied to the two-gear automatic speed changing case of electric car according to claim 5, it is characterised in that：Chute (21) bag Include two sections of flat segments being oppositely arranged (211) and two sections of deviation sections (212) being oppositely arranged, the flat segments (211) and deviation Section (212) is arranged alternately, and has the arc transition section connected with the two between the flat segments (211) and deviation section (212) (213)；The deviation section (212) includes straight line branch section (212b) and is oppositely arranged two sections of oblique lines of straight line branch section (212b) both sides Branch section (212a), one end of two sections of oblique line branch sections (212a) connect with straight line branch section (212b) one end adjacent thereto respectively Logical, the one end of the other end respectively with adjacent arc transition section (213) connect, the bearing of trend of the straight line branch section (212b) with There is angle between the bearing of trend of flat segments (211).
- 8. it is applied to the two-gear automatic speed changing case of electric car according to claim 7, it is characterised in that：In the speed change hub (2) a end face is provided with the support ring (24) to stretch out along its axis direction, and the speed change hub gear (44) is set in In the support ring (24), connected between the speed change hub gear (44) and speed change hub (2) by an at least bearing pin (17).
- 9. it is applied to the two-gear automatic speed changing case of electric car according to claim 7, it is characterised in that：Sliding block (7) bag Embedded division (71) is included, the embedded division (71) is the prismatic structure that section is rhombus, the embedded division (71) and arc transition section (213) there is the fillet (711) being adapted with arc transition section (213) at the seamed edge of contact.
- 10. it is applied to the two-gear automatic speed changing case of electric car according to any one of claims 1 to 3, it is characterised in that：Institute State a gear driven gear (15) and two gear driven gears (14) are installed in rotation on output shaft (9) by needle bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720476975.0U CN206802240U (en) | 2017-05-02 | 2017-05-02 | Suitable for the two-gear automatic speed changing case of electric car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720476975.0U CN206802240U (en) | 2017-05-02 | 2017-05-02 | Suitable for the two-gear automatic speed changing case of electric car |
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| CN206802240U true CN206802240U (en) | 2017-12-26 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958642A (en) * | 2017-05-02 | 2017-07-18 | 苏州江南嘉捷机电技术研究院有限公司 | Electric automobile two-gear automatic speed changing case |
| CN114183506A (en) * | 2020-09-15 | 2022-03-15 | 郑州宇通客车股份有限公司 | Vehicle transmission, vehicle power system and vehicle |
| CN116538248A (en) * | 2023-05-13 | 2023-08-04 | 江苏盖亚环境科技股份有限公司 | Flexible speed change mechanism of self-adaptive feedback weak disturbance intelligent sampling equipment |
-
2017
- 2017-05-02 CN CN201720476975.0U patent/CN206802240U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106958642A (en) * | 2017-05-02 | 2017-07-18 | 苏州江南嘉捷机电技术研究院有限公司 | Electric automobile two-gear automatic speed changing case |
| CN106958642B (en) * | 2017-05-02 | 2023-05-02 | 苏州江南嘉捷光机电技术有限公司 | Two-gear automatic gearbox of electric automobile |
| CN114183506A (en) * | 2020-09-15 | 2022-03-15 | 郑州宇通客车股份有限公司 | Vehicle transmission, vehicle power system and vehicle |
| CN114183506B (en) * | 2020-09-15 | 2023-05-09 | 宇通客车股份有限公司 | Transmission for vehicle, power system for vehicle and vehicle |
| CN116538248A (en) * | 2023-05-13 | 2023-08-04 | 江苏盖亚环境科技股份有限公司 | Flexible speed change mechanism of self-adaptive feedback weak disturbance intelligent sampling equipment |
| CN116538248B (en) * | 2023-05-13 | 2023-10-17 | 江苏盖亚环境科技股份有限公司 | Flexible speed change mechanism of self-adaptive feedback weak disturbance intelligent sampling equipment |
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Effective date of registration: 20200921 Address after: 215122 No. 1, Exhibition Road, Suzhou Industrial Park, Jiangsu Patentee after: SUZHOU SJEC OPTO-MECHANTRONICS TECHNOLOGY Co.,Ltd. Address before: 215122 No. 1, Exhibition Road, Suzhou Industrial Park, Suzhou, Jiangsu Patentee before: SJEC Corp. |
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Address after: 215122 1 Exhibition Hall Road, Suzhou Industrial Park, Jiangsu Patentee after: Suzhou Xili Technology Co.,Ltd. Country or region after: China Address before: 215122 1 Exhibition Hall Road, Suzhou Industrial Park, Jiangsu Patentee before: SUZHOU SJEC OPTO-MECHANTRONICS TECHNOLOGY Co.,Ltd. Country or region before: China |
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