CN209245217U - Shift-selecting and changing actuating mechanism, gearbox and vehicle - Google Patents
Shift-selecting and changing actuating mechanism, gearbox and vehicle Download PDFInfo
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- CN209245217U CN209245217U CN201822017827.XU CN201822017827U CN209245217U CN 209245217 U CN209245217 U CN 209245217U CN 201822017827 U CN201822017827 U CN 201822017827U CN 209245217 U CN209245217 U CN 209245217U
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Abstract
The application belongs to gearbox technical field, it is related to a kind of shift-selecting and changing actuating mechanism, gearbox and vehicle, the shift-selecting and changing actuating mechanism includes motor, motor output shaft, shifting axis, block selecting driving device and shift executive device, and the shift executive device includes three shift assemblies.Shift-selecting and changing actuating mechanism, gearbox and the vehicle of the application, block selecting driving device driving shifting axis is moved along its axial reciprocating, so that the shifting axis can toggle between the first block selecting position, the second block selecting position and third block selecting position.Tubular screw rod is independently arranged with shifting axis, it is engaged by the internal spline of tubular screw rod with external splines corresponding on shifting axis and realizes block selecting, i.e. tubular screw rod is also block selecting functional component, block selecting movement does not need additionally to increase gear selection mechanism, advantageously reduces the cost and structure complexity of gearbox.
Description
Technical field
The application belongs to gearbox technical field, more particularly to a kind of shift-selecting and changing actuating mechanism, gearbox and vehicle.
Background technique
A kind of existing shift-selecting and changing actuating mechanism, including shift motor, shift screw rod, shift silk braid and selector fork, are changed
The output end of gear motor is connect by flexible coupling with shift screw rod transmission, and selector fork is set on shift silk braid and passes through
Round pin limit, shift silk braid are set on shift screw rod and constitute lead screw auxiliary connection with shift screw rod.
The shift-selecting and changing actuating mechanism of this form, shift screw rod directly serve as shifting shaft, are directly connected to shift motor and change
Shift fork is kept off, shift silk braid is integral with selector fork assembly, drives selector fork to be changed by the axial movement of shift silk braid
Gear movement.
The shift-selecting and changing actuating mechanism of this form, shift screw rod can only serve as the effect of shifting shaft, without block selecting function
Can, block selecting movement needs additional gear selection mechanism to carry out.It will definitely increase the cost and structure complexity of gearbox in this way, occupy
More spaces in gearbox.Also, the shift-selecting and changing actuating mechanism of this form can only carry out the switching of most two gears, if needing
Control three or more gears, it is necessary to which multiple shift-selecting and changing actuating mechanisms, the cost and space hold of gearbox can be further
Increase.
Utility model content
Technical problems to be solved in this application are: being directed to existing shift-selecting and changing actuating mechanism, shift screw rod can only serve as
The effect of shifting shaft, without block selecting function, block selecting movement needs additional gear selection mechanism to carry out, and increases the cost of gearbox
And the problem of structure complexity, a kind of shift-selecting and changing actuating mechanism, gearbox and vehicle are provided.
In order to solve the above technical problems, on the one hand, the embodiment of the present application provides a kind of shift-selecting and changing actuating mechanism, including electricity
Mechanical, electrical machine output shaft, shifting axis, block selecting driving device and shift executive device；
One end of the motor output shaft and the shifting axis is slidably connected, the motor output shaft and shifting axis
Relative rotation is limited, so that the shifting axis can follow the motor output shaft integrally under the driving of the motor
Rotation；
The shift executive device includes three shift assemblies, and the shift assembly includes selector fork and tubular screw rod,
The tubular screw rod is socketed on the shifting axis, and there are three external splines, the tubular screw rods for setting on the shifting axis
Inner ring be provided with can be with corresponding internal spline external splines engagement or be detached from, the inner ring of the selector fork and the cylinder
The outer ring of shape screw rod is threadedly engaged；
The block selecting driving device is for driving the shifting axis to move along its axial reciprocating, so that the shifting
Axis can toggle between the first block selecting position, the second block selecting position and third block selecting position；
When the shifting axis is in the first block selecting position, the tubular of the shift assembly nearest apart from the motor
The internal spline of screw rod is engaged with external splines corresponding on the shifting axis, the shift assembly nearest apart from the motor into
Enter shift-variable state, shift assembly described in other two enters non-shift-variable state；
When the shifting axis is in the second block selecting position, the tubular screw rod of the centrally located shift assembly
Internal spline engaged with external splines corresponding on the shifting axis, the centrally located shift assembly enters shift-variable
State, shift assembly described in other two enter non-shift-variable state；
When the shifting axis is in third block selecting position, the tubular of the shift assembly farthest apart from the motor
The internal spline of screw rod is engaged with external splines corresponding on the shifting axis, the shift assembly farthest apart from the motor into
Enter shift-variable state, shift assembly described in other two enters non-shift-variable state；
The rotation of the motor drives the motor output shaft, shifting axis and the shift group in shift-variable state
The tubular screw rod of part integrally rotates, so that the selector fork of the shift assembly in shift-variable state can be along tubular
Screw rod sliding；The shifting axis and the tubular screw rod of the shift assembly in non-shift-variable state can relatively rotate.
Optionally, the shift assembly further includes bearing, the bearing press mounting the shifting axis periphery with it is described
Between the inner ring of tubular screw rod.
Optionally, the motor output shaft is connect with one end spline of the shifting axis.
Optionally, the motor output shaft and the shifting axis are coaxial.
Optionally, the shifting axis has the first path shaft part, the second path shaft part and is connected to first path
The outer diameter of major diameter shaft part between shaft part and the second path shaft part, the major diameter shaft part is greater than the first path shaft part and second
The outer diameter of path shaft part, the position that the first path shaft part connects with major diameter shaft part is formed with the first radial confined planes, described
The position that second path shaft part connects with major diameter shaft part is formed with the second radial confined planes, electricity described in distance on the shifting axis
A nearest external splines of machine is formed on the first path shaft part and one end connects with the described first radial confined planes,
A farthest external splines of motor described in distance is formed on the second path shaft part and one end on the shifting axis
Connect with the described second radial confined planes, centrally located external splines is located at the major diameter shaft part on the shifting axis
On；
The internal spline of the shift assembly when be in shift-variable state its tubular screw rod nearest apart from the motor is remote
One end and the first radial confined planes from the motor is against the shift assembly farthest apart from the motor is being in
When shift-variable state the internal spline of its tubular screw rod close to the motor one end and the second radial confined planes against.
Optionally, the block selecting driving device includes the first driving element and the second driving element, the first driving member
Part is used to that the shifting axis to be driven to move along its axial direction to the direction close to the motor, and second driving element is for driving
It moves the shifting axis and is moved along its axial direction to the direction far from the motor.
Optionally, the block selecting driving device includes solenoid valve and elastic element, and the solenoid valve setting is changed in the choosing
The other end of gear shaft, the elastic element are connected between the solenoid valve and shifting axis.
Optionally, when the electric current that the solenoid valve is powered off or is passed through is less than or equal to the first electric current, the shifting axis
It is moved to the first block selecting position to the direction close to the motor along its axial direction by the thrust of the elastic element, close to described
The internal spline of the tubular screw rod of the shift assembly of motor is engaged with external splines corresponding on the shifting axis, completes first
Block selecting movement；In the first block selecting position, the motor output shaft, shifting axis can be driven by the rotating forward of the motor and are in
The tubular screw rod of the shift assembly of shift-variable state integrally rotates forward, so that the selector fork stirs synchronizer to separate
The direction of the motor is moved to hang up the first gear；The motor output shaft, choosing can be driven to change by the reversion of the motor
Gear shaft and the tubular screw rod of the shift assembly in shift-variable state integrally invert, so that the selector fork is stirred together
Step device is moved to the direction close to the motor to hang up the second gear；
When the electric current that the solenoid valve is passed through is greater than the first electric current and is less than or equal to the second electric current, the shifting axis
The resistance of elastic element is overcome to be moved to along its axial direction to the direction close to the solenoid valve by the attraction of the solenoid valve
Second block selecting position, the internal spline of the tubular screw rod of the centrally located shift assembly are corresponding on the shifting axis
External splines engagement, complete at this time the second block selecting movement；In the second block selecting position, can be driven by the rotating forward of the motor described
The tubular screw rod of motor output shaft, shifting axis and the shift assembly in shift-variable state integrally rotates forward, so that institute
It states selector fork and stirs synchronizer and move to far from the direction of the motor to hang up third gear；Pass through the reversion of the motor
The tubular screw rod of the motor output shaft, shifting axis and the shift assembly in shift-variable state can be driven integrally anti-
Turn, so that the selector fork is stirred synchronizer and moved to the direction close to the motor to hang up fourth gear position；
When the electric current that the solenoid valve is passed through is greater than the second electric current and is less than or equal to third electric current, the shifting axis
The resistance of elastic element is overcome to be moved to along its axial direction to the direction close to the solenoid valve by the attraction of the solenoid valve
Third block selecting position, close to the solenoid valve the shift assembly tubular screw rod internal spline with it is right on the shifting axis
The external splines engagement answered, completes third block selecting movement at this time；In third block selecting position, institute can be driven by the rotating forward of the motor
The tubular screw rod for stating motor output shaft, shifting axis and the shift assembly in shift-variable state integrally rotates forward, so that
The selector fork is stirred synchronizer and is moved to the direction far from the motor to hang up fifth gear position；Pass through the anti-of the motor
Turn to drive the tubular screw rod of the motor output shaft, shifting axis and the shift assembly in shift-variable state integrally
Reversion, so that the selector fork is stirred synchronizer and moved to the direction close to the motor to hang up 6th gear.
On the other hand, the embodiment of the present application also provides a kind of gearbox comprising above-mentioned shift-selecting and changing actuating mechanism.
In another aspect, the embodiment of the present application also provides a kind of vehicle comprising above-mentioned shift-selecting and changing actuating mechanism.
The shift-selecting and changing actuating mechanism, gearbox and vehicle of the embodiment of the present application, block selecting driving device drive shifting axis edge
Its axial reciprocating is mobile, so that the shifting axis can be in the first block selecting position, the second block selecting position and third block selecting position
It toggles, is engaged by the internal spline of tubular screw rod with external splines corresponding on shifting axis, the rotation band of motor between setting
The tubular screw rod of dynamic motor output shaft, shifting axis and the shift assembly in shift-variable state integrally rotates, so that place
It can be slid along tubular screw rod in the selector fork of the shift assembly of shift-variable state, so that selector fork stirs synchronizer to leaning on
It moves close or remote from the direction of motor to hang up corresponding gear.The shift-selecting and changing actuating mechanism of the application eliminates traditional shift
Torque-transmitting mechanisms between motor and selector fork, have it is simple and compact for structure, occupy little space, respond rapidly, positioning standard
The advantages that really and transmission efficiency is high.In addition, tubular screw rod is independently arranged with shifting axis, pass through the internal spline of tubular screw rod
It is engaged with external splines corresponding on shifting axis and realizes block selecting, i.e., tubular screw rod is also block selecting functional component, and block selecting movement is not required to
Additionally to increase gear selection mechanism, advantageously reduce the cost and structure complexity of gearbox.
In addition, shift-selecting and changing actuating mechanism is including three shift assemblies, single shift-selecting and changing actuating mechanism can be made to realize 6
The selection of a gear switches, and greatlys save gearbox manufacturing cost, and save the inner space of gearbox, reduces the body of gearbox
Product.
Detailed description of the invention
Fig. 1 is the schematic diagram for the shift-selecting and changing actuating mechanism that one embodiment of the application provides；
Fig. 2 is the schematic diagram that the shift-selecting and changing actuating mechanism that one embodiment of the application provides hangs up the first gear；
Fig. 3 is the schematic diagram that the shift-selecting and changing actuating mechanism that one embodiment of the application provides hangs up the second gear；
Fig. 4 is the schematic diagram that the shift-selecting and changing actuating mechanism that one embodiment of the application provides hangs up third gear；
Fig. 5 is the schematic diagram that the shift-selecting and changing actuating mechanism that one embodiment of the application provides hangs up fourth gear position；
Fig. 6 is the schematic diagram that the shift-selecting and changing actuating mechanism that one embodiment of the application provides hangs up fifth gear position；
Fig. 7 is the schematic diagram that the shift-selecting and changing actuating mechanism that one embodiment of the application provides hangs up 6th gear；
The frame diagram of gearbox provided by the embodiments of the present application in Fig. 8；
The frame diagram of vehicle provided by the embodiments of the present application in Fig. 9.
Appended drawing reference in specification is as follows:
1000, vehicle；
200, gearbox；
100, shift-selecting and changing actuating mechanism；
1, motor；2, motor output shaft；3, shifting axis；301, external splines；305, the first path shaft part；306, second is small
Diameter shaft part；307, major diameter shaft part；308, the first radial confined planes；309, the second radial confined planes；4, selector fork；5, tubular silk
Bar；501, internal spline；6, solenoid valve；7, elastic element；8, bearing.
Specific embodiment
The technical issues of in order to keep the application solved, technical solution and beneficial effect are more clearly understood, below in conjunction with
The application is described in further detail in accompanying drawings and embodiments.It should be appreciated that specific embodiment described herein is only
To explain the application, it is not used to limit the application.
Shift-selecting and changing actuating mechanism provided by the embodiments of the present application, including motor, motor output shaft, shifting axis, block selecting drive
Dynamic device and shift executive device.
One end of the motor output shaft and the shifting axis is slidably connected, the motor output shaft and shifting axis
Relative rotation is limited, so that the shifting axis can follow the motor output shaft integrally under the driving of the motor
Rotation.
The shift executive device includes three shift assemblies, and the shift assembly includes selector fork and tubular screw rod,
The tubular screw rod is socketed on the shifting axis, and there are three external splines, the tubular screw rods for setting on the shifting axis
Inner ring be provided with can be with corresponding internal spline external splines engagement or be detached from, the inner ring of the selector fork and the cylinder
The outer ring of shape screw rod is threadedly engaged.
The block selecting driving device is for driving the shifting axis to move along its axial reciprocating, so that the shifting
Axis can toggle between the first block selecting position, the second block selecting position and third block selecting position.
When the shifting axis is in the first block selecting position, the tubular of the shift assembly nearest apart from the motor
The internal spline of screw rod is engaged with external splines corresponding on the shifting axis, the shift assembly nearest apart from the motor into
Enter shift-variable state, shift assembly described in other two enters non-shift-variable state.
When the shifting axis is in the second block selecting position, the tubular screw rod of the centrally located shift assembly
Internal spline engaged with external splines corresponding on the shifting axis, the centrally located shift assembly enters shift-variable
State, shift assembly described in other two enter non-shift-variable state.
When the shifting axis is in third block selecting position, the tubular of the shift assembly farthest apart from the motor
The internal spline of screw rod is engaged with external splines corresponding on the shifting axis, the shift assembly farthest apart from the motor into
Enter shift-variable state, shift assembly described in other two enters non-shift-variable state.
The rotation of the motor drives the motor output shaft, shifting axis and the shift group in shift-variable state
The tubular screw rod of part integrally rotates, so that the selector fork of the shift assembly in shift-variable state can be along tubular
Screw rod sliding；The shifting axis and the tubular screw rod of the shift assembly in non-shift-variable state can relatively rotate.
Screw rod for example can be common threaded screw rod either ball screw.Preferably ball screw, to reduce tubular
Friction noise between screw rod and selector fork.
The shift executive device includes three shift assemblies.Single shift-selecting and changing actuating mechanism can be made to realize 6
The selection of a gear switches, and greatlys save gearbox manufacturing cost, and save the inner space of gearbox, reduces the body of gearbox
Product.
In some embodiments, the shift assembly further includes bearing, and the bearing press mounting is in the outer of the shifting axis
It is all between the inner ring of the tubular screw rod.Tubular screw rod and shifting axis are because of the production of axial movement face when bearing can weaken block selecting
Raw axial rub improves the stability and reliability of mechanism.
In some embodiments, it is not provided with bearing between the periphery of the shifting axis and the inner ring of the tubular screw rod,
But it directly contacts.
In some embodiments, the motor output shaft is connect with one end spline of the shifting axis, and the motor is defeated
Shaft and the shifting axis are coaxial.Spline connection permission motor output shaft is moved to axial with shifting axis, limits institute
State the relative rotation of motor output shaft Yu shifting axis.Spline connection structure is stablized, it is ensured that motor output shaft and shifting
The relatively high-axiality of axis.
In some embodiments, one end of the motor output shaft and the shifting axis is also possible to using matched shape
Shape rotates to limit.At this point, one end of the motor output shaft and the shifting axis has matched cross sectional shape, the section
Shape is non-circular.Two components of noncircular cross section are mating (hole axle cooperation), also may be implemented to slide and limit relatively
Rotation.
In some embodiments, the shifting axis has the first path shaft part, the second path shaft part and is connected to described
The outer diameter of major diameter shaft part between first path shaft part and the second path shaft part, the major diameter shaft part is greater than the described first small journal axle
The outer diameter of section and the second path shaft part, the position that the first path shaft part connects with major diameter shaft part are formed with the first radial limit
Face, the position that the second path shaft part connects with major diameter shaft part are formed with the second radial confined planes, on the shifting axis away from
The external splines nearest from the motor is formed on the first path shaft part and one end and first radial direction limit
Plane connects, and a farthest external splines of motor described in distance is formed in the second path shaft part on the shifting axis
Upper and one end connects with the described second radial confined planes, and centrally located external splines is located at described big on the shifting axis
On diameter shaft part.The internal spline of the shift assembly when be in shift-variable state its tubular screw rod nearest apart from the motor is remote
One end and the first radial confined planes from the motor is against the shift assembly farthest apart from the motor is being in
When shift-variable state the internal spline of its tubular screw rod close to the motor one end and the second radial confined planes against.Pass through
One end of the internal spline of tubular screw rod and the first radial confined planes or the second radial confined planes against shifting axis may be implemented
Accurate positioning in block selecting.
In some embodiments, the shifting axis is also possible to the uniform axis of outer diameter everywhere.At this point it is possible to by
Stop part (such as retaining ring) carries out backstop to the internal spline of the tubular screw rod of the shift assembly at both ends.
In some embodiments, the block selecting driving device includes the first driving element and the second driving element, and described the
One driving element is used to that the shifting axis to be driven to move along its axial direction to the direction close to the motor, the second driving member
Part is used to that the shifting axis to be driven to move along its axial direction to the direction far from the motor.First driving element and the second driving
Element for example can be solenoid valve, hydraulic valve, air pressure valve, hydraulic cylinder, pneumatic cylinder and electric cylinders etc..First driving element and the second drive
One of driving shifting axis in dynamic element is moved along its axial direction to the direction close to the motor, another drive
It moves the shifting axis and is moved along its axial direction to the direction far from the motor.The shifting axis is realized along its axial reciprocating
It is mobile, so that the shifting axis can be between the first block selecting position, the second block selecting position and third block selecting position back and forth
Switching.First driving element drives shifting axis along its axial direction to when moving close to the direction of the motor, shifting axis according to
It is secondary to pass through third block selecting position, the second block selecting position and the first block selecting position.Second driving element drives shifting axis along its axis
When direction of the Xiang Youxiang far from the motor is mobile, shifting axis successively passes through the first block selecting position, the second block selecting position and the
Three block selecting positions.
In some embodiments, the block selecting driving device includes solenoid valve and elastic element, and the solenoid valve setting exists
The other end of the shifting axis, the elastic element are connected between the solenoid valve and shifting axis.When the solenoid valve
When the electric current for powering off or being passed through is less than or equal to the first electric current, elastic element acts on the thrust on the shifting axis and is greater than electricity
(when solenoid valve powers off, 0) solenoid valve is that choosing is changed to the attraction of the shifting axis to attraction of the magnet valve to the shifting axis
Gear shaft is moved to the first block selecting position to the direction close to the motor along its axial direction by the thrust of the elastic element, close
The internal spline of the tubular screw rod of the shift assembly of the motor is engaged with external splines corresponding on the shifting axis, is completed
First block selecting movement；In the first block selecting position, by the rotating forward of the motor can drive the motor output shaft, shifting axis and
The tubular screw rod of the shift assembly in shift-variable state integrally rotates forward so that the selector fork stir synchronizer to
Direction far from the motor is moved to hang up the first gear；By the reversion of the motor can drive the motor output shaft,
Shifting axis and the tubular screw rod of the shift assembly in shift-variable state integrally invert, so that the selector fork is dialled
Dynamic synchronizer is moved to the direction close to the motor to hang up the second gear.When the electric current that the solenoid valve is passed through is greater than first
Electric current and be less than or equal to the second electric current when, the shifting axis overcomes the resistance of elastic element by the attraction of the solenoid valve
Power is moved to the second block selecting position, the centrally located shift assembly to the direction close to the solenoid valve along its axial direction
The internal spline of tubular screw rod engaged with external splines corresponding on the shifting axis, complete the second block selecting movement at this time；?
Two block selecting positions can drive the motor output shaft, shifting axis and in shift-variable state by the rotating forward of the motor
The tubular screw rod of the shift assembly integrally rotates forward, so that the selector fork stirs synchronizer to the side far from the motor
To movement to hang up third gear；The motor output shaft, shifting axis can be driven by the reversion of the motor and in can
The tubular screw rod of the shift assembly of gearshift condition integrally inverts, so that the selector fork stirs synchronizer to close to institute
The direction for stating motor is moved to hang up fourth gear position.It is less than or equal to when the electric current that the solenoid valve is passed through is greater than the second electric current
When third electric current, the shifting axis overcomes the resistance of elastic element along its axial direction to close by the attraction of the solenoid valve
The direction of the solenoid valve is moved to third block selecting position, close to the solenoid valve the shift assembly tubular screw rod it is interior
Spline is engaged with external splines corresponding on the shifting axis, completes third block selecting movement at this time；In third block selecting position, pass through
The rotating forward of the motor can drive the cylinder of the motor output shaft, shifting axis and the shift assembly in shift-variable state
Shape screw rod integrally rotates forward, so that the selector fork is stirred synchronizer and moved to the direction far from the motor to hang up the 5th
Gear；The motor output shaft, shifting axis can be driven by the reversion of the motor and in changing described in shift-variable state
The tubular screw rod of gear component integrally inverts, so that the selector fork is stirred synchronizer and moved to the direction close to the motor
To hang up 6th gear.
In some embodiments, solenoid valve can also be substituted using electromagnet.
The shift-selecting and changing actuating mechanism, gearbox and vehicle of the embodiment of the present application, block selecting driving device drive shifting axis edge
Its axial reciprocating is mobile, so that the shifting axis can be in the first block selecting position, the second block selecting position and third block selecting position
It toggles, is engaged by the internal spline of tubular screw rod with external splines corresponding on shifting axis, the rotation band of motor between setting
The tubular screw rod of dynamic motor output shaft, shifting axis and the shift assembly in shift-variable state integrally rotates, so that place
It can be slid along tubular screw rod in the selector fork of the shift assembly of shift-variable state, so that selector fork stirs synchronizer to leaning on
It moves close or remote from the direction of motor to hang up corresponding gear.The shift-selecting and changing actuating mechanism of the application eliminates traditional shift
Torque-transmitting mechanisms between motor and selector fork, have it is simple and compact for structure, occupy little space, respond rapidly, positioning standard
The advantages that really and transmission efficiency is high.In addition, tubular screw rod is independently arranged with shifting axis, pass through the internal spline of tubular screw rod
It is engaged with external splines corresponding on shifting axis and realizes block selecting, i.e., tubular screw rod is also block selecting functional component, and block selecting movement is not required to
Additionally to increase gear selection mechanism, advantageously reduce the cost and structure complexity of gearbox.
In addition, shift-selecting and changing actuating mechanism is including three shift assemblies, single shift-selecting and changing actuating mechanism can be made to realize 6
The selection of a gear switches, and greatlys save gearbox manufacturing cost, and save the inner space of gearbox, reduces the body of gearbox
Product.
Shift-selecting and changing actuating mechanism 100 provided by the embodiments of the present application is described in detail below in conjunction with Fig. 1 to Fig. 7.
As shown in Figure 1, the shift-selecting and changing actuating mechanism 100 that one embodiment of the application provides, including motor 1, motor output shaft
2, shifting axis 3, block selecting driving device and shift executive device.
One end of the motor output shaft 2 is fixedly connected with the rotor of the motor 1, the motor output shaft 2 it is another
End is connect with one end spline of the shifting axis 3.Spline connection allows motor output shaft 2 and shifting axis 3 to axial
It is mobile, limit the relative rotation of the motor output shaft 2 and shifting axis 3.Spline connection structure is stablized, it is ensured that motor is defeated
The relatively high-axiality of shaft 2 and shifting axis 3.
Specifically, one end of the motor output shaft 2 is provided with splined hole, one end of the shifting axis 3 forms spline
Axis, splined shaft are plugged in splined hole, and the other end and one end of the shifting axis 3 of the motor output shaft 2 are realized with this
Spline connection, so that the other end of the motor output shaft 2 and one end of the shifting axis 3 are slidably connected, and the motor
Output shaft 2 and the relative rotation of shifting axis 3 are limited so that the shifting axis 3 can under the driving of the motor 1 with
It is integrally rotated with the motor output shaft 2.
However, the position of splined shaft and splined hole can be interchanged as a kind of deformation, i.e., the one of the described motor output shaft 2
End forms splined shaft, and one end of the shifting axis 3 forms splined hole.
The shift executive device includes three shift assemblies, one of them described shift assembly enters shift-variable shape
When state, other two described shift assembly enters non-shift-variable state.It avoids the occurrence of multiple shift assemblies while being in shift-variable
The shift mistake of state.
The shift assembly includes selector fork 4 and tubular screw rod 5, and the tubular screw rod 5 is socketed in the shifting axis 3
On, on the shifting axis 3 setting there are two external splines 301, the inner ring of the tubular screw rod 5 be provided with can with it is corresponding described
The internal spline 501 external splines 301 engagement or be detached from, the inner ring of the selector fork 4 and the outer ring screw thread of the tubular screw rod 5 are matched
It closes.
The lower part of selector fork 4 is provided with a semicircular fork, and fork pushes synchronizer and corresponding shift gear
In conjunction with to realize shift.
The block selecting driving device is for driving the shifting axis 3 to move along its axial reciprocating, so that the choosing is changed
Gear shaft 3 can toggle between the first block selecting position, the second block selecting position and third block selecting position.
Cylinder when the shifting axis 3 is in the first block selecting position, apart from the nearest shift assembly of the motor 1
The internal spline 501 of shape screw rod 5 is engaged with external splines 301 corresponding on the shifting axis 3, the institute nearest apart from the motor 1
It states shift assembly and enters shift-variable state, shift assembly described in other two enters non-shift-variable state.
When the shifting axis 3 is in the second block selecting position, the tubular silk of the centrally located shift assembly
The internal spline 501 of bar 5 is engaged with external splines 301 corresponding on the shifting axis 3, the centrally located shift assembly
Into shift-variable state, shift assembly described in other two enters non-shift-variable state.
When the shifting axis 3 is in third block selecting position, the cylinder of the shift assembly farthest apart from the motor
The internal spline 501 of shape screw rod 5 is engaged with external splines 301 corresponding on the shifting axis 3, apart from the motor it is farthest described in
Shift assembly enters shift-variable state, and shift assembly described in other two enters non-shift-variable state.
The rotation of the motor 1 drives the motor output shaft 2, shifting axis 3 and in changing described in shift-variable state
The tubular screw rod 5 of gear component integrally rotates, so that the selector fork 4 of the shift assembly in shift-variable state can
It is slid along tubular screw rod 5；The shifting axis 3 and the tubular screw rod 5 of the shift assembly in non-shift-variable state can phases
To rotation.Cancel the torque-transmitting mechanisms between traditional shift motor and selector fork, motor output shaft and shifting axis, cylinder
Shape screw rod rotates integrally, and keeps structure more simple and compact, and response is faster, more efficient.
The shift assembly further includes bearing 8, the bearing 8 be fitted in the shifting axis 3 periphery and the tubular
Between the inner ring of screw rod 5.The axial direction that tubular screw rod 5 and shifting axis 3 are generated by axial movement face when bearing 8 can weaken block selecting
Friction, improves the stability and reliability of mechanism.
Preferably, the periphery of the inner ring of the bearing 8 and the shifting axis 3 is interference fitted, the outer ring of the bearing 8 with
The inner ring clearance fit of the tubular screw rod 5.In this way, the bearing 8 is moved together with shifting axis 3.Relative to the outer of bearing 8
The inner ring of circle and tubular screw rod 5 is interference fitted and the scheme of the circumferential play of the inner ring of bearing 8 and shifting axis 3 cooperation, is avoided
The friction of bearing 8 and shifting axis 3, the use for improving shifting axis 3 are received the order, further improve mechanism stability and
Reliability.
As shown in Figure 1, the shifting axis 3 has the first path shaft part 305, the second path shaft part 306 and is connected to institute
The major diameter shaft part 307 between the first path shaft part 305 and the second path shaft part 306 is stated, the outer diameter of the major diameter shaft part 307 is greater than
The outer diameter of the first path shaft part 305 and the second path shaft part 306, the first path shaft part 305 and 307 phase of major diameter shaft part
The position connect is formed with the first radial confined planes 308, and the position that the second path shaft part connects with major diameter shaft part is formed with the
Two radial confined planes 309, a nearest external splines 301 of motor 1 described in distance is formed in described on the shifting axis 3
On first path shaft part 305 and one end connects with the described first radial confined planes 308, electricity described in distance on the shifting axis 3
A farthest external splines 301 of machine 1 is formed on the second path shaft part 306 and one end and second radial direction limit
Face 309 connects, and centrally located external splines 301 is located on the major diameter shaft part 307 on the shifting axis 3.
Referring to Fig. 1 to Fig. 7, apart from the nearest shift assembly of the motor 1 its tubular when being in shift-variable state
The internal spline 501 of screw rod 5 is far from one end of the motor and the first radial confined planes 308 against most apart from the motor 1
The remote shift assembly be in shift-variable state when its tubular screw rod 5 internal spline 501 close to the motor 1 one end with
The second radial confined planes 309 against.
Motor 1, motor output shaft 2 and tubular screw rod 5 are fixed relative to transmission housing body position, pass through tubular screw rod 5
One end of internal spline 501 and the first radial confined planes 308 or the second radial confined planes 309 against shifting axis 3 may be implemented
Accurate positioning in block selecting.
As shown in Figure 1, the shift-selecting and changing actuating mechanism 100 that one embodiment of the application provides, the block selecting driving device include
The other end of the shifting axis 3 is arranged in solenoid valve 6 and elastic element 7, the solenoid valve 6, and the elastic element 7 is connected to
Between the solenoid valve 6 and shifting axis 3.
In embodiment illustrated in fig. 1, elastic element 7 is spring.However in some alternative embodiments, elastic element 7 can also
To have the element of similar characteristics with spring using elastic slice, elastic rubbery body etc..
The shift-selecting and changing actuating mechanism 100 of the present embodiment can realize the choosing of 6 gears by the movement of motor 1 and solenoid valve 6
It selects and switches.It is specific as follows referring to fig. 2 to Fig. 7:
When the electric current that the solenoid valve 6 is powered off or is passed through is less than or equal to the first electric current, the shifting axis 3 is by institute
The thrust for stating elastic element 7 is moved along its axial direction to the direction close to the motor 1, close to the shift group of the motor 1
The internal spline 501 of the tubular screw rod 5 of part is engaged with external splines 301 corresponding on the shifting axis 3, close to the motor 1
The shift assembly enters shift-variable state, other two described shift assembly enters non-shift-variable state, completes the first block selecting
Movement；At this point, the motor output shaft 2, shifting axis 3 can be driven by the rotating forward of the motor 1 and in shift-variable state
The tubular screw rod 5 of the shift assembly integrally rotate forward so that the selector fork 4 stirs synchronizer to far from the motor
1 direction is moved to hang up the first gear；The motor output shaft 2, shifting axis 3 can be driven by the reversion of the motor 1
And the tubular screw rod 5 of the shift assembly in shift-variable state integrally inverts, so that the selector fork 4 stirs synchronization
Device is moved to the direction close to the motor 1 to hang up the second gear.
When the electric current that the solenoid valve 6 is passed through is greater than the first electric current and is less than or equal to the second electric current, the shifting
Axis 3 is moved along its axial direction to the direction close to the solenoid valve 6 by the sucking action of the solenoid valve 6 and compression elastic element
7, when attraction of the solenoid valve 6 to the shifting axis 3 is equal to the elastic element 7 to the thrust of the shifting axis 3
When, the internal spline 501 of the tubular screw rod 5 of the centrally located shift assembly is corresponding on the shifting axis 3 outer
Spline 301 engages, and the shift assembly of the centrally located solenoid valve 6 enters shift-variable state, other two institute
Shift assembly is stated into non-shift-variable state, completes the second block selecting movement at this time；At this point, the rotating forward by the motor 1 can band
Move the tubular screw rod 5 of the motor output shaft 2, shifting axis 3 and the shift assembly in shift-variable state integrally just
Turn, so that the selector fork 4 is stirred synchronizer and moved to the direction far from the motor 1 to hang up third gear；Pass through institute
The reversion for stating motor 1 can drive the motor output shaft 2, shifting axis 3 and the shift assembly in shift-variable state
Tubular screw rod 5 integrally inverts, so that the selector fork 4 is stirred synchronizer and moved to the direction close to the motor 1 to hang
Upper fourth gear position.
When the electric current that the solenoid valve 6 is passed through is greater than the second electric current and is less than or equal to third electric current, solenoid valve 6 is generated
Bigger electromagnetic attraction, the shifting axis 3 is by the sucking action of the solenoid valve 6 along its axial direction to close to the solenoid valve
The mobile simultaneously compression elastic element 7 in 6 direction, when attraction of the solenoid valve to the shifting axis 3 is equal to the elasticity member
When part 7 is to the thrust of the shifting axis 3, close to the internal spline of the tubular screw rod 5 of the shift assembly of the solenoid valve 6
501 engage with external splines 301 corresponding on the shifting axis 3, complete third block selecting movement at this time；At this point, passing through the electricity
The rotating forward of machine 1 can drive the tubular of the motor output shaft 2, shifting axis 3 and the shift assembly in shift-variable state
Screw rod 5 integrally rotates forward, so that the selector fork 4 is stirred synchronizer and moved to the direction far from the motor 1 to hang up the
Five gears；The motor output shaft 2, shifting axis 3 can be driven by the reversion of the motor 1 and in the institute of shift-variable state
The tubular screw rod 5 for stating shift assembly integrally inverts, so that the selector fork 4 stirs synchronizer to close to the motor 1
Direction is moved to hang up 6th gear.
By the cooperation of motor 1 and solenoid valve 6, quick shifting is realized, and can realize the shifting of six gears, improve
Efficiency, shift rapidly, save cost and save space.
In addition, shift-selecting and changing actuating mechanism 100 includes three shift assemblies, so that single shift-selecting and changing actuating mechanism realizes 6
The selection and switching of gear, greatly save gearbox manufacturing cost, and save the inner space of gearbox, reduce the body of gearbox
Product.
In addition, as shown in figure 8, the embodiment of the present application also provides a kind of gearboxes 200 comprising the choosing of above-described embodiment
Gear shifting actuating mechanism 100.
In addition, as shown in figure 9, the embodiment of the present application also provides a kind of vehicles 1000 comprising the choosing of above-described embodiment
Gear shifting actuating mechanism 100.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Made any modifications, equivalent replacements, and improvements etc., should be included within the scope of protection of this application within mind and principle.
Claims (10)
1. a kind of shift-selecting and changing actuating mechanism, which is characterized in that including motor, motor output shaft, shifting axis, block selecting driving device
And shift executive device；
One end of the motor output shaft and the shifting axis is slidably connected, and the motor output shaft is opposite with shifting axis
Rotation is limited, so that the shifting axis can follow the motor output shaft integrally to revolve under the driving of the motor
Turn；
The shift executive device includes three shift assemblies, and the shift assembly includes selector fork and tubular screw rod, described
Tubular screw rod is socketed on the shifting axis, on the shifting axis setting there are three external splines, the tubular screw rod it is interior
Circle is provided with can be with corresponding internal spline external splines engagement or be detached from, the inner ring of the selector fork and the tubular silk
The outer ring of bar is threadedly engaged；
The block selecting driving device is for driving the shifting axis to move along its axial reciprocating, so that the shifting axis energy
It is enough to be toggled between the first block selecting position, the second block selecting position and third block selecting position；
When the shifting axis is in the first block selecting position, the tubular screw rod of the shift assembly nearest apart from the motor
Internal spline engaged with external splines corresponding on the shifting axis, the shift assembly nearest apart from the motor enters can
Gearshift condition, shift assembly described in other two enter non-shift-variable state；
When the shifting axis is in the second block selecting position, the tubular screw rod of the centrally located shift assembly it is interior
Spline is engaged with external splines corresponding on the shifting axis, and the centrally located shift assembly enters shift-variable shape
State, shift assembly described in other two enter non-shift-variable state；
When the shifting axis is in third block selecting position, the tubular screw rod of the shift assembly farthest apart from the motor
Internal spline engaged with external splines corresponding on the shifting axis, the shift assembly farthest apart from the motor enters can
Gearshift condition, shift assembly described in other two enter non-shift-variable state；
The rotation of the motor drives the motor output shaft, shifting axis and the shift assembly in shift-variable state
Tubular screw rod integrally rotates, so that the selector fork of the shift assembly in shift-variable state can be along tubular screw rod
Sliding；The shifting axis and the tubular screw rod of the shift assembly in non-shift-variable state can relatively rotate.
2. shift-selecting and changing actuating mechanism according to claim 1, which is characterized in that the shift assembly further includes bearing, institute
Bearing press mounting is stated between the periphery of the shifting axis and the inner ring of the tubular screw rod.
3. shift-selecting and changing actuating mechanism according to claim 1, which is characterized in that the motor output shaft and the shifting
One end spline of axis connects.
4. shift-selecting and changing actuating mechanism according to claim 1, which is characterized in that the motor output shaft and the shifting
Axis is coaxial.
5. shift-selecting and changing actuating mechanism according to claim 1, which is characterized in that the shifting axis has the first small journal axle
Section, the second path shaft part and the major diameter shaft part being connected between the first path shaft part and the second path shaft part, the major diameter
The outer diameter of shaft part is greater than the outer diameter of the first path shaft part and the second path shaft part, the first path shaft part and major diameter shaft part
The position to connect is formed with the first radial confined planes, and the position that the second path shaft part connects with major diameter shaft part is formed with second
Radial confined planes, a nearest external splines of motor described in distance is formed in the described first small journal axle on the shifting axis
In section and one end connects with the described first radial confined planes, and motor described in distance is farthest on the shifting axis one is described outer
Spline is formed on the second path shaft part and one end connects with the described second radial confined planes, is located on the shifting axis
The external splines in middle position is located on the major diameter shaft part；
The internal spline of the shift assembly when be in shift-variable state its tubular screw rod nearest apart from the motor is far from institute
The one end for stating motor and the first radial confined planes are against the shift assembly farthest apart from the motor is in interchangeable
When gear state the internal spline of its tubular screw rod close to the motor one end and the second radial confined planes against.
6. shift-selecting and changing actuating mechanism described in -5 any one according to claim 1, which is characterized in that the block selecting driving device
Including the first driving element and the second driving element, first driving element for drive the shifting axis along its axial direction to
Mobile close to the direction of the motor, second driving element is for driving the shifting axis along its axial direction to far from described
The direction of motor is mobile.
7. shift-selecting and changing actuating mechanism described in -5 any one according to claim 1, which is characterized in that the block selecting driving device
Including solenoid valve and elastic element, the other end of the shifting axis is arranged in the solenoid valve, and the elastic element is connected to
Between the solenoid valve and shifting axis.
8. shift-selecting and changing actuating mechanism according to claim 7, which is characterized in that when the electricity that the solenoid valve is powered off or is passed through
When stream is less than or equal to the first electric current, the shifting axis is by the thrust of the elastic element along its axial direction to close to the electricity
The direction of machine is moved to the first block selecting position, close to the motor the shift assembly tubular screw rod internal spline with it is described
Corresponding external splines engagement, completes the first block selecting movement on shifting axis；In the first block selecting position, pass through the rotating forward of the motor
The tubular screw rod of the motor output shaft, shifting axis and the shift assembly in shift-variable state can be driven integrally just
Turn, so that the selector fork is stirred synchronizer and moved to the direction far from the motor to hang up the first gear；By described
The reversion of motor can drive the tubular silk of the motor output shaft, shifting axis and the shift assembly in shift-variable state
Bar integrally inverts, so that the selector fork is stirred synchronizer and moved to the direction close to the motor to hang up second gear
Position；
When the electric current that the solenoid valve is passed through be greater than the first electric current and be less than or equal to the second electric current when, the shifting axis by
The attraction of the solenoid valve overcomes the resistance of elastic element to be moved to second to the direction close to the solenoid valve along its axial direction
Block selecting position, the internal spline of the tubular screw rod of the centrally located shift assembly are corresponding on the shifting axis outer
Spline engagement completes the second block selecting movement at this time；In the second block selecting position, the motor can be driven by the rotating forward of the motor
The tubular screw rod of output shaft, shifting axis and the shift assembly in shift-variable state integrally rotates forward, so that described change
Gear shift fork is stirred synchronizer and is moved to the direction far from the motor to hang up third gear；It can band by the reversion of the motor
The tubular screw rod for moving the motor output shaft, shifting axis and the shift assembly in shift-variable state integrally inverts,
So that the selector fork is stirred synchronizer and is moved to the direction close to the motor to hang up fourth gear position；
When the electric current that the solenoid valve is passed through be greater than the second electric current and be less than or equal to third electric current when, the shifting axis by
The attraction of the solenoid valve overcomes the resistance of elastic element to be moved to third to the direction close to the solenoid valve along its axial direction
Block selecting position, the internal spline close to the tubular screw rod of the shift assembly of the solenoid valve are corresponding on the shifting axis
Third block selecting movement is completed in external splines engagement at this time；In third block selecting position, the electricity can be driven by the rotating forward of the motor
The tubular screw rod of machine output shaft, shifting axis and the shift assembly in shift-variable state integrally rotates forward, so that described
Selector fork is stirred synchronizer and is moved to the direction far from the motor to hang up fifth gear position；It can by the reversion of the motor
Drive the tubular screw rod of the motor output shaft, shifting axis and the shift assembly in shift-variable state integrally anti-
Turn, so that the selector fork is stirred synchronizer and moved to the direction close to the motor to hang up 6th gear.
9. a kind of gearbox, which is characterized in that including shift-selecting and changing actuating mechanism described in claim 1-8 any one.
10. a kind of vehicle, which is characterized in that including shift-selecting and changing actuating mechanism described in claim 1-8 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822017827.XU CN209245217U (en) | 2018-11-30 | 2018-11-30 | Shift-selecting and changing actuating mechanism, gearbox and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822017827.XU CN209245217U (en) | 2018-11-30 | 2018-11-30 | Shift-selecting and changing actuating mechanism, gearbox and vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209245217U true CN209245217U (en) | 2019-08-13 |
Family
ID=67531187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822017827.XU Active CN209245217U (en) | 2018-11-30 | 2018-11-30 | Shift-selecting and changing actuating mechanism, gearbox and vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209245217U (en) |
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2018
- 2018-11-30 CN CN201822017827.XU patent/CN209245217U/en active Active
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