CN109707842B

CN109707842B - Gear shifting driver

Info

Publication number: CN109707842B
Application number: CN201811589330.3A
Authority: CN
Inventors: 圣地亚哥·吉梅诺; 王海波
Original assignee: Ficosa International Taicang Co Ltd
Current assignee: Ficosa International Taicang Co Ltd
Priority date: 2017-03-31
Filing date: 2017-03-31
Publication date: 2021-11-16
Anticipated expiration: 2037-03-31
Also published as: CN106838303A; CN109630675A; CN106838303B; CN109707842A

Abstract

The invention discloses a gear shift driver, which comprises a driving mechanism and a connecting piece driven by the driving mechanism; the connecting piece is provided with a first end and a second end, the first end is connected with the driving mechanism through a universal joint, and the connecting piece can rotate by taking the first end as a pivot point, so that the connecting piece has the freedom degree of enabling the second end to do circumferential rotation in the axial direction vertical to the connecting piece; the connecting piece can axially extend and retract. The gear shifting driver provided by the invention is easy to connect with the gearbox.

Description

Gear shifting driver

The present application is a divisional application of inventions with patent numbers 201710205528.6, 3.31.2017, and the title shift driver and transmission.

[ technical field ] A method for producing a semiconductor device

The invention belongs to the field of motor vehicle gear shifting, and particularly relates to a gear shifting driver.

[ background of the invention ]

The statements in this section merely provide background information related to the present disclosure and may not constitute prior art.

The gearbox can adopt a gear shifting control mechanism to change the gear ratio to realize gear shifting. For example, publication US2003/0188595a1 provides a setting device for an adjustable gear shift mechanism, wherein the connection of the setting device to the gearbox is described as a known embodiment. In this known embodiment the motor of the setting device is provided with a worm shaft which cooperates with a nut of a spindle housing provided with a carrier which can be moved laterally by the motor drive, the carrier being connected to the control shaft of the gearbox by means of a lever. Thus, lateral movement of the carrier may cause rotation of the lever and control shaft to effect gear shifting.

In this known embodiment, the connection between the bracket and the rod is as follows: the rod is provided with a groove or opening extending in the axial direction, and the bracket is provided with a pin inserted in the groove or opening and slidable therein. This requires that the carrier and/or the rod have some space for displacement in the axial direction perpendicular to the worm shaft during assembly. However, it is often the case that the setting device and gearbox have been fixed in place beforehand, which makes the connection of the carrier and the rod difficult.

It should be noted that the above background description is only for the sake of clarity and complete description of the technical solutions of the present invention and for the understanding of those skilled in the art. Such solutions are not considered to be known to the person skilled in the art merely because they have been set forth in the background section of the invention.

[ summary of the invention ]

In view of the above-mentioned drawbacks of the prior art, the present invention provides a gear shift actuator that is easier to connect to a transmission.

In order to achieve the above object, the present invention provides the following technical solutions.

A shift actuator comprising: a drive mechanism and a linkage driven by the drive mechanism; the connecting piece is provided with a first end and a second end, the first end is connected with the driving mechanism through a universal joint, the connecting piece can rotate by taking the first end as a pivot point, so that the connecting piece has the freedom degree that the second end is perpendicular to the axial direction of the connecting piece to do circumferential orbiting, and the connecting piece can axially stretch and retract.

Preferably, the connecting member includes a first rod body and a second rod body provided with a first cavity, and one end of the first rod body is inserted into the first cavity and can move in the first cavity; and the second rod body is provided with a locking piece which can fix the first rod body and the second rod body.

Preferably, the second rod body is provided with a second through hole communicated with the first cavity, the locking piece is arranged in the second through hole, and the end part of the locking piece entering the first cavity and the side wall of the first rod body in the first cavity are provided with matched teeth.

Preferably, the first rod body comprises a first section and a second section provided with a second cavity, an elastic piece is accommodated in the second cavity, and one end of the first section is inserted into the second cavity and is fixedly propped against the elastic piece;

the first section is located be provided with first recess of looks spaced and second recess on the lateral wall in the second cavity, the second section is provided with the intercommunication the third through-hole of second cavity, wear to be equipped with the locking piece in the third through-hole, the locking piece card is gone into first recess or in the second recess.

By means of the technical scheme, the invention has the beneficial effects that: the connecting piece is connected with the driving mechanism through the universal joint, so that when the connecting piece rotates by taking the first end as a pivot point, the second end can perform circumferential orbiting in the axial direction perpendicular to the connecting piece, and the connecting piece can be connected with the gearbox after the second end orbits to any proper position. Thereby, even in the case where both the shift actuator and the transmission case are to be fixed, by configuring the link of this embodiment to drive the shifter, it is possible to make the connecting operation of the shift actuator and the transmission case easy.

Further areas of applicability will become apparent from the description provided herein. The description and specific examples of this summary are intended for purposes of illustration only and are not intended to limit the scope of the present disclosure.

[ description of the drawings ]

The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way. In addition, the shapes, the proportional sizes, and the like of the respective members in the drawings are merely schematic for facilitating the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members of the present invention. Those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case. In the drawings:

fig. 1 is a perspective view of a shift actuator according to the present invention;

FIG. 2 is a cross-sectional schematic view of the shift actuator of the present invention;

FIG. 3 is a perspective view of the assembly of the connecting member and the rotating member of the present invention;

FIG. 4 is an exploded view of the connecting member and the rotating member of the present invention.

[ detailed description ] embodiments

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "left", "right", and the like as used herein are for illustrative purposes based on the drawings of the specification and do not represent the only embodiments.

Referring to fig. 1 to 4, the shift actuator 100 of the present invention may include a driving mechanism 1 and a connecting member 2 driven by the driving mechanism 1; the connecting member 2 has a first end and a second end, the first end is connected to the driving mechanism 1 through a universal joint, and the connecting member 2 can rotate with the first end as a pivot point, so that the connecting member 2 has a degree of freedom that the second end makes a circumferential orbiting motion in an axial direction perpendicular to the connecting member 2.

In the shift actuator 100 according to the embodiment of the present invention, the connecting member 2 is connected to the driving mechanism 1 through the universal joint, so that when the connecting member 2 rotates with the first end as a pivot point, the second end can circumferentially orbit in the axial direction perpendicular to the connecting member 2, and thus the connecting member 2 can be connected to the transmission case after the second end orbits to any suitable position. Thereby, even in the case where both the shift actuator and the transmission case are to be fixed, driving the shifter by configuring the link 2 of the embodiment can make the connecting operation of the shift actuator and the transmission case easy.

The gear shift actuator may further comprise a housing 3 for accommodating the drive mechanism 1 therein, the coupling member 2 being substantially rod-shaped, a first end (a left end as viewed in fig. 2) of the rod-shaped coupling member 2 for coupling with the drive mechanism 1 being located in the housing 3, and a second end (a right end as viewed in fig. 2) protruding out of the housing 3 for coupling with the gearbox. As shown in fig. 1, the housing 3 may have a connection plate 301, and the connection plate 301 is provided with a connection hole 302 so as to be used for fixing the housing 3.

The connecting piece 2 can be connected with the gearbox, specifically, the control shaft of gearbox can be connected with the connecting rod, and the connecting piece 2 can be connected with this connecting rod, and the connecting piece 2 can rotate at the junction with the connecting rod. As shown in fig. 1 to 3, the second end of the connector 2 may be provided with a socket 201, and a socket 202 may be provided in the socket 201. The connecting rod can be provided with a ball fitted into the socket 202 at the end facing away from the gearbox, by means of which ball and socket 202 the connecting part 2 can be rotated at the connection with the connecting rod. In addition, through setting up ball and socket structure, can also make connecting piece 2 and connecting rod realize bayonet coupling, the installation and the fixed of connecting piece 2 and connecting rod of being convenient for.

Of course, the connection manner of the connecting element 2 and the connecting rod is not limited to the above examples, and in other possible embodiments, any connection manner that can realize the rotation of the connecting element 2 and the connecting rod at the connection position, such as hinge, pin connection, etc., should be included in the protection scope of the present invention.

Further, the connecting member 2 is axially retractable so that the second end is connected to the connecting rod by the pivotal movement of the connecting member 2 after the second end is located at substantially the same position as the end of the connecting rod away from the transmission case by the retractable movement.

As shown in fig. 2, the connecting member 2 may be axially retractable, and the connecting member 2 includes a first rod 203 and a second rod 204 having a first cavity 2041, and one end of the first rod 203 is inserted into the first cavity 2041 and can move in the first cavity 2041; the second rod 204 is provided with a locking member 205 capable of fixing the first rod 203 and the second rod 204. After the first rod 203 moves in the first cavity 2041 to make the second end of the connecting element 2 in place, the first rod 203 and the second rod 204 are fixed by the locking element 205, so that the connecting element 2 and the connecting rod are rigidly connected.

The locking member 205 may be substantially block-shaped, the second rod 204 may have a second through hole communicating with the first cavity 2041, an end of the locking member 205 entering the first cavity 2041 through the second through hole may be concave to fit with an outer wall of the first rod 203, and the concave end of the locking member 205 and a side wall of the first rod 203 in the first cavity 2041 may have matching teeth. When the teeth at the end of the locking member 205 are engaged with the teeth on the sidewall of the first rod 203, the first rod 203 is fixed to the second rod 204; when the teeth at the end of the locking member 205 are disengaged from the teeth on the sidewall of the first rod 203, the first rod 203 can move in the first cavity 2041, thereby achieving the axial extension and contraction of the connecting member 2.

The second rod 204 may have an opening communicating with the first cavity 2041, the opening extends along the moving direction of the first rod 203, a limiting member extending into the opening is disposed on a wall of the first rod 203 located in the first cavity 2041, and the limiting member may contact the wall of the opening, so as to limit the moving range of the first rod 203 in the first cavity 2041 and prevent the first rod 203 from slipping out of the first cavity 2041.

As shown in fig. 2 and 4, the driving mechanism 1 may include a body 101 provided with a spherical cavity 1011, the body 101 may be substantially in the shape of a block, the first end of the connecting member 2 may be provided with a ball 206 fitting the spherical cavity 1011, and the ball 206 is disposed in the spherical cavity 1011. Thus, the spherical cavity 1011 and the spherical ball 206 are adapted to form a possible embodiment of the universal joint, and the spherical ball 206 can rotate in the spherical cavity 1011.

As shown in fig. 4, in order to facilitate the assembly of the ball 206 with the spherical cavity 1011, the body 101 may be provided with an opening 1012 communicating with the spherical cavity 1011, and the ball 206 can enter the spherical cavity 1011 through the opening 1012. Further, a cover 102 corresponding to the opening 1012 may be connected to the body 101, and the cover 102 can close the opening 1012 to prevent the ball 206 from sliding out of the opening 1012 after the ball 206 is installed in the spherical cavity 1011, or open the opening 1012 when the ball 206 needs to be removed.

The cover 102 may be hinged or pinned to the body 101 such that the cover 102 may be rotated to conveniently close or open the opening 1012. In addition, a protrusion may be disposed on the cover 102, and a corresponding slot may be disposed on the body 101, when the cover 102 is in a position to close the opening 1012, the protrusion on the cover 102 may be inserted into the slot, so that the cover 102 may be fixed on the body 101 more stably.

The manner of connecting the first end of the connecting member 1 with the body 101 through the universal joint is not limited to the above embodiment, and the present invention is not limited to the above example. The gimbal may include any other possible embodiment, and those skilled in the art will be able to make modifications other than those exemplified above within the spirit of the present invention and to be included within the scope of the present invention. In particular, for example, the body 101 may be provided with a first universal joint cross, and the first end of the connecting member 2 may be provided with a second universal joint cross connected to the first universal joint cross, the connected first universal joint cross and second universal joint cross forming another possible embodiment of the universal joint.

The driving mechanism 1 drives the connecting piece 2, and the driving mechanism 1 can drive the connecting piece 2 to move along the axial direction. The specific implementation manner may be that the driving mechanism 1 includes a rotating part 103 and a motor 104 in transmission connection with the rotating part 103; the body 101 is provided with a first through hole 109, the rotating member 103 is arranged in the first through hole 109, and the inner wall of the first through hole 109 and the outer wall of the rotating member 103 are provided with screw threads matched with each other.

A motor 104 is provided on the housing 3, which has an output shaft in the housing 3, on which a drive wheel may be provided. The rotating member 103 may be substantially rod-shaped, two ends of the rotating member may be disposed in the housing 3 through bearings, a driven wheel corresponding to the driving wheel is disposed on a side wall of the rotating member 103 near the left end, and the driven wheel is connected to the driving wheel through a transmission member. The driving wheel and the driven wheel are preferably in belt transmission, so that noise in the transmission process is reduced. In order to avoid slipping of the belt drive, the driving and driven pulleys are preferably toothed belt pulleys, and correspondingly, the belt is a toothed belt pulley.

Since the inner wall of the first through hole 109 and the outer wall of the rotating member 103 are provided with the matching screw threads, when the rotating member 103 rotates under the driving of the motor 104, the body 101 can move along the axial direction of the rotating member 103 under the engagement of the screw threads. The motor 104 can be connected to a power supply through the connection terminal 4, and by controlling the direction of current input to the motor 104, the rotation direction of the output shaft of the motor 104 can be changed, and thus the change of the moving direction of the body 101 can be realized.

In order to enable the vehicle to still have the function of being in the parking position in case of power failure, as shown in fig. 2, in one embodiment, the first rod 203 may include a first section 2031 and a second section 2032 provided with a second cavity 2033, the second cavity 2033 may contain an elastic member 2034, such as a spring, and one end of the first section 2031 is inserted into the second cavity 2033 and is fixed on the elastic member 2034; first festival 2031 is provided with first recess 2035 of looks spaced and second recess 2036 on being located the lateral wall in the second cavity 2033, and second festival 2032 is provided with the third through-hole of intercommunication second cavity 2033, wears to be equipped with locking piece 209 in the third through-hole, and locking piece 209 card is gone into in first recess 2035 or the second recess 2036.

The locking member 209 may be substantially in the shape of a plate, and may have an opening through which the first section 2031 passes, and another elastic member 210 is biased between the locking member 209 and the second section 2032, and the elastic member 210 is in a compressed state to apply an upward elastic force to the locking member 209, so that the lower end of the opening of the locking member 209 is clamped into the first groove 2035 or the second groove 2036.

First recess 2035 and second recess 2036 axial interval, as shown in fig. 2, first recess 2035 is located the right of second recess 2036, and the change that realizes first body of rod 203 length through different recesses of lock piece 209 card income, and then realizes the length change of connecting piece 2.

When the power supply is normally powered, the locking member 209 is clamped into the first groove 2035 on the right under the action of the elastic member 210, the elastic member 210 is fixed by the first section 2031 in a compressed state, and the first rod 203 is short in length; when the power supply fails, the operator may press the locking member 209, for example, for the driver, the elastic member 2034 pushes the second link 2032 to move it to the right, and then the locking member 209 is clamped into the second groove 2036 on the left, so that the length of the first rod 203 is increased, and the connecting rod connected to the connecting member 2 is driven to move, and the transmission is in the parking position.

Referring to fig. 1 to 4, the present invention also provides a transmission device, which may include: a gearbox (not shown) and a shift actuator 100 mounted on the gearbox, the shift actuator 100 comprising a drive mechanism 1 and a coupling member 2 driven by the drive mechanism 1, the gearbox having a linkage (not shown) connected thereto; when the gear shift drive 100 is in the preset gear, the end of the coupling element 2 facing away from the drive mechanism 1 has a first position; when the gearbox is in the same preset gear, the end part of the connecting rod, which is far away from the gearbox, is in a second position; the connecting piece 2 is adjustable, so that the end part of the connecting piece 2 departing from the driving mechanism 1 can be connected with the end part of the connecting rod departing from the gearbox within a preset range near the first position; a locking element 205 is provided on the coupling member 2 to enable a rigid connection of the coupling member 2 to the connecting rod, so that the end of the coupling member 2 facing away from the drive mechanism 1 is fixed in a first position and the end of the connecting rod facing away from the gearbox is fixed in a second position.

The speed change device of the embodiment of the invention has the advantages that the adjustable connecting piece 2 is arranged, so that the connection operation of the gear shift driver 100 and the gearbox is easy, and the locking piece 205 is arranged to rigidly connect the connecting piece 2 and the connecting rod, so that the gear shift driver 100 and the gearbox are accurately corresponding.

The adjustable connecting piece 2 can comprise that the connecting piece 2 can rotate by taking the end part of the connecting piece connected with the driving mechanism 1 as a pivot point, so that the end part of the connecting piece 2 departing from the driving mechanism 1 can do circumferential rotation in the axial direction vertical to the connecting piece 2; and the connecting element 2 is axially telescopic.

When the gear shift drive 100 is in a predetermined gear, for example P, N, D or R, the end of the coupling element 2 facing away from the drive mechanism 1 has a first position; when the gearbox is in the same preset gear, the end part of the connecting rod, which is far away from the gearbox, is in a second position. Since the connecting element 2 is adjustable, the end of the connecting element 2 remote from the drive 1 can be pivoted and displaced within a predetermined range around the first position, which facilitates the connecting operation of the connecting element 2 and the connecting rod.

The end of the connecting member 2 away from the driving mechanism 1 and the end of the connecting rod away from the transmission case may be rotationally connected by a ball and socket fit, a hinge joint, a pin joint, etc., for example, please refer to the foregoing description, and will not be described herein again.

When the coupling element 2 is coupled to the connecting rod, the locking element 205 performs a locking action, the coupling element 2 and the connecting rod are rigidly coupled, and the end of the coupling element 2 facing away from the drive mechanism 1 and the end of the connecting rod facing away from the gearbox are fixed in the first position and the second position, respectively, so that the gear change actuator 100 preferably corresponds to a gearbox gear. The specific structure of the locking element 205 and the locking operation can be found in the above description, and are not described herein again.

It should be noted that one end of the connecting rod is connected to the control shaft of the gearbox, and the other end, i.e. the end facing away from the gearbox, is connected to the end of the connecting piece 2 facing away from the drive mechanism 1. Any suitable conventional structure may be adopted for the transmission case in the present embodiment. For clearly and briefly explaining the technical scheme provided by the embodiment, the structures of the connecting rod and the gearbox part are not repeated, and the attached drawings of the specification are correspondingly simplified. It will nevertheless be understood that no limitation of the scope of the application is thereby intended.

It should be noted that, in the description of the present invention, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no precedence between the two is considered as indicating or implying relative importance.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The omission in the foregoing claims of any aspect of subject matter that is disclosed herein is not intended to forego such subject matter, nor should the inventors be construed as having contemplated such subject matter as being part of the disclosed subject matter.

Claims

1. A gear change actuator, comprising: a drive mechanism, a housing for housing the drive mechanism therein, and a link driven by the drive mechanism; the driving mechanism comprises a rod-shaped rotating piece arranged in a shell and a body capable of reciprocating on the rod-shaped rotating piece; the connecting piece is in a rod shape and is provided with a first end and a second end, and the first end is positioned in the shell; the first end of the connecting piece is connected with the rod-shaped rotating piece through the body, so that the connecting piece can rotate by taking the first end as a pivot point, and the connecting piece has the freedom degree of making the second end perform circumferential rotation in the axial direction vertical to the connecting piece; the connecting piece can axially extend and retract;

the connecting piece comprises a first rod body and a second rod body provided with a first cavity, and one end of the first rod body is inserted into the first cavity and can move in the first cavity; the second rod body is provided with a locking piece which can fix the first rod body and the second rod body;

the first rod body comprises a first section and a second section provided with a second cavity, an elastic piece is accommodated in the second cavity, and one end of the first section is inserted into the second cavity and is fixedly propped against the elastic piece;

2. The gear shift driver as claimed in claim 1, characterized in that the second rod is provided with a second through hole which communicates with the first cavity, the locking element being arranged in the second through hole, the end of the locking element which enters the first cavity being provided with a toothing which is adapted to the side wall of the first rod which is located in the first cavity.