Power coupling control device
阅读说明:本技术 动力耦合控制装置 (Power coupling control device ) 是由 刘磊 严忆泉 邱丽红 于 2019-03-11 设计创作,主要内容包括:本发明涉及一种动力耦合控制装置。该动力耦合控制装置用于选择性地接合或断开驱动机构与车辆传动系统之间的传动连接,其包括:致动电机;致动齿轮,其具有筒状的轴部和与致动电机传动连接的齿轮部;支撑座,轴部可转动地支撑在支撑座上,轴部相对于支撑座沿轴向固定并能够相对于支撑座转动;致动件,其套设在轴部上并与轴部螺纹配合,致动件与支撑座位于轴部的径向相反的两侧;和止挡件,止挡件与支撑座固定连接并接合致动件,从而止挡致动件相对于支撑座的转动运动。本发明的动力耦合控制装置结构简单、控制精度高且可靠性高。(The invention relates to a power coupling control device. The power coupling control device is used for selectively engaging or disengaging transmission connection between a driving mechanism and a vehicle transmission system, and comprises: an actuation motor; an actuating gear having a cylindrical shaft portion and a gear portion drivingly connected to an actuating motor; the shaft part is rotatably supported on the supporting seat, and is axially fixed relative to the supporting seat and can rotate relative to the supporting seat; the actuating piece is sleeved on the shaft part and is in threaded fit with the shaft part, and the actuating piece and the supporting seat are positioned on two sides of the shaft part in the radial direction; and a stop member fixedly connected with the support seat and engaging the actuating member to stop rotational movement of the actuating member relative to the support seat. The power coupling control device has the advantages of simple structure, high control precision and high reliability.)
1. A power coupling control device for selectively engaging or disengaging a drive connection between a drive mechanism and a vehicle driveline, the power coupling control device comprising an actuator motor (1),
it is characterized in that the preparation method is characterized in that,
the power coupling control device further includes:
an actuating gear (2), wherein the actuating gear (2) is provided with a cylindrical shaft part (21) and a gear part (22) in transmission connection with the actuating motor (1);
a support seat (3), the shaft portion (21) being rotatably supported on the support seat (3), the shaft portion (21) being axially fixed with respect to the support seat (3) and being rotatable with respect to the support seat (3);
the actuating piece (4) is sleeved on the shaft part (21) and is in threaded fit with the shaft part (21), and the actuating piece (4) and the supporting seat (3) are positioned on two sides of the shaft part (21) in the radial direction; and
a stop member (5), said stop member (5) being fixedly connected to said support seat (3) and engaging said actuating member (4) so as to stop a rotational movement of said actuating member (4) relative to said support seat (3).
2. A power coupling control device according to claim 1, characterized in that the actuating member (4) is located radially outside the shaft portion (21) and the support seat (3) is located radially inside the shaft portion (21).
3. A power coupling control device according to claim 1 or 2, characterized in that an output gear (12) is fixed on the motor shaft (11) of the actuating motor (1), and the gear part (22) is meshed with the output gear (12).
4. A power coupling control device according to claim 3, characterized in that the motor shaft (11) extends in a direction perpendicular to the planes of rotation of the output gear (12) and the gear portion (22).
5. A power coupling control device according to claim 1 or 2, characterized in that the gear portion (22) is fan-shaped about the axis of rotation of the shaft portion (21).
6. A power coupling control device according to claim 1 or 2, characterized in that the gear portion (22) has an aperture (23), the stop (5) passing through the aperture (23) so as to limit the rotational movement of the actuation gear (2).
7. The power coupling control device according to claim 1 or 2, characterized in that the power coupling control device further comprises a mounting plate (6), and the stop member (5) and the support base (3) are fixedly connected together through the mounting plate (6).
8. A power coupling control device according to claim 7, characterized in that the axial end of the shaft portion (21) abuts against the mounting plate (6) via a washer (7).
9. The power coupling control device according to claim 8, wherein a bushing (8) is disposed between the shaft portion (21) and the support seat (3), the bushing (8) is sleeved on the support seat (3) in an interference fit manner, a radially extending flange (81) is formed at one axial end of the bushing (8) away from the mounting plate (6), and the flange (81) abuts against the other axial end of the shaft portion (21) away from the mounting plate (6).
10. A power coupling control device according to claim 7, characterized in that the motor shaft (11) of the actuator motor (1) passes through the mounting plate (6).
Technical Field
The invention relates to the technical field of vehicles. In particular, the present invention relates to a power coupling control device.
Background
In a vehicle, it is generally necessary to provide some power coupling control device between a drive mechanism such as an internal combustion engine or a motor and a transmission system. The power coupling control devices are driven by a motor or manually, and actuate mechanisms such as synchronizers and the like to selectively engage or disconnect different transmission paths, so that the purposes of gear shifting, speed changing and the like are achieved. Most of the current vehicles, especially new energy vehicles, adopt a special motor to drive the power coupling control device, but the traditional shifting fork type mechanism is adopted as the actuating mechanism.
CN 106838300 a discloses an automatic synchronous gear shifting system and an electric vehicle. The gear shifting motor directly drives the lead screw to further drive the nut sleeve to move along the lead screw, the mounting shaft of the shifting fork is connected with the connecting columns on two sides of the nut sleeve through the lug plates, and when the nut sleeve moves, the shifting fork is driven to swing around the mounting shaft, so that gear shifting is achieved. Under this kind of configuration, the output torque of motor at first turns into linear motion through the ball screw device, turns into the swing of shift fork through the otic placode again, and transmission path is complicated, and can't realize the accurate control to the shift fork position of shifting. In addition, the nut sleeve also has the tendency of rotating relative to the axis of the screw rod when moving along the screw rod, and the rotating motion is limited by the lug plate of the shifting fork, so that the shifting fork is likely to vibrate, and the shifting is unstable.
CN 103557316 a discloses a lead screw nut shift mechanism. Wherein, screw nut and shift fork fixed connection, the rotation trend of nut when removing on the lead screw is limited by the shift fork equally, also arouses the vibration of shift fork easily, causes great noise and leads to shifting gears unstablely.
Disclosure of Invention
Therefore, the technical problem to be solved by the invention is to provide a power coupling control device with simple structure, high control precision and high reliability.
The above technical problem is solved by a power coupling control device according to the present invention. The power coupling control device is used for selectively engaging or disengaging transmission connection between a driving mechanism and a vehicle transmission system, and comprises: an actuation motor; an actuating gear having a cylindrical shaft portion and a gear portion drivingly connected to an actuating motor; the shaft part is rotatably supported on the supporting seat, and is axially fixed relative to the supporting seat and can rotate relative to the supporting seat; the actuating piece is sleeved on the shaft part and is in threaded fit with the shaft part, and the actuating piece and the supporting seat are positioned on two sides of the shaft part in the radial direction; and a stop member fixedly connected to the support base and engaging the actuator member to stop rotational movement of the actuator member relative to the support base. The actuating gear of the power coupling control device is directly in threaded fit with the actuating piece, and the stop piece limits the rotation of the actuating piece, so that the rotary motion output to the actuating gear by the actuating motor is directly converted into the axial motion of the actuating piece, the transmission path is short, the structure is simple, and the control precision and reliability of power coupling control are greatly improved.
According to a preferred embodiment of the invention, the actuating member is located radially outside the shaft portion and the support seat is located radially inside the shaft portion. Because the supporting seat is a fixing piece, the supporting seat, the shaft part of the actuating gear and the actuating piece are sequentially sleeved along the radial direction, so that the device can be conveniently mounted and dismounted.
According to another preferred embodiment of the present invention, an output gear is fixed to a motor shaft of the actuator motor, and the gear portion is engaged with the output gear. Preferably, the motor shaft extends in a direction perpendicular to the plane of rotation of the output gear and the gear portion. The gear transmission layout can use smaller gears to output the torque of the actuating motor, reduce the size of transmission parts and improve the transmission ratio.
According to another preferred embodiment of the invention, the gear part of the actuator gear is sector-shaped around the axis of rotation of the shaft part. Because the rotation range of the actuating gear is generally small, the gear part of the actuating gear can only form a fan shape instead of a complete circle, the structural utilization rate of the fan-shaped gear is higher, and the weight is lighter.
According to another preferred embodiment of the invention, the gear part has an aperture through which the stop member passes, so that the stop member restricts the rotational movement of the actuating gear while restricting the rotational movement of the actuating member, preventing the actuating gear from rotating through an excessive angle.
According to another preferred embodiment of the present invention, the power coupling control device further comprises a mounting plate, and the stop member and the support base are fixedly connected together through the mounting plate. The mounting plate may be fixed to the gearbox or formed integrally with the housing of the gearbox to provide support for the power coupling control device as a whole.
According to another preferred embodiment of the invention, the axial end of the shaft portion abuts against the mounting plate via a washer. The washer may reduce friction between the shaft portion and the mounting plate. Preferably, a bushing is arranged between the shaft portion and the support seat, the bushing is sleeved on the support seat in an interference fit manner, a radially extending flange is formed at one axial end, away from the mounting plate, of the bushing, and the flange abuts against the other axial end, away from the mounting plate, of the shaft portion. The bush can reduce the friction between axial region and the supporting seat to carry out axial spacing to the axial region through flange and mounting panel cooperation.
According to another preferred embodiment of the invention, the motor shaft of the actuator motor passes through the mounting plate. The motor shaft may be supported by the actuator motor itself (e.g., by the housing of the actuator motor) or may be supported by the mounting plate.
Drawings
The invention is further described below with reference to the accompanying drawings. Identical reference numbers in the figures denote functionally identical elements. Wherein:
fig. 1 is a perspective view of a power coupling control device according to an embodiment of the present invention; and
fig. 2 is a sectional view of the power coupling control apparatus of fig. 1.
Detailed Description
Hereinafter, a specific embodiment of the power coupling control apparatus according to the present invention will be described with reference to the accompanying drawings. The following detailed description and drawings are included to illustrate the principles of the invention, which is not to be limited to the preferred embodiments described, but is to be defined by the appended claims.
Fig. 1 and 2 show a perspective view and a sectional view of a power coupling control apparatus according to an embodiment of the present invention, respectively. As shown in fig. 1, the power coupling control device is driven by an actuating
As shown in fig. 2, the
The
When the
According to another embodiment of the present invention, the radial arrangement order of the components of the power coupling control device may be reversed, that is, the
In the power coupling control device, the actuating motor drives the actuating gear, the actuating gear is directly in threaded fit with the actuating piece, the rotational motion output to the actuating gear by the actuating motor is directly converted into the axial motion of the actuating piece through the constraint of the stop piece on the rotational freedom degree of the actuating piece, the transmission path is short, the structure is simple, the disassembly and the assembly are convenient, the control precision and the reliability of power coupling control are greatly improved, and the manufacturing cost and the product size are reduced.
Although possible embodiments have been described by way of example in the above description, it should be understood that numerous embodiment variations exist, still by way of combination of all technical features and embodiments that are known and that are obvious to a person skilled in the art. It should also be appreciated that the exemplary embodiment or exemplary embodiments are only examples, and are not intended to limit the scope, applicability, or configuration of the invention in any way. From the foregoing description, one of ordinary skill in the art will more particularly provide a technical guide to convert at least one exemplary embodiment, wherein various changes may be made, particularly in matters of function and structure of the components described, without departing from the scope of the following claims.
List of reference numerals
1 actuating motor
11 Motor shaft
12 output gear
2 actuating gear
21 shaft part
22 gear part
23 orifice
3 support seat
4 actuating element
41 boss part
5 stop piece
6 mounting plate
7 gasket
8 liner
81 Flange
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