阅读说明：本技术 一种amt变速箱往复运动的换挡执行器 (Gear shifting actuator for AMT gearbox reciprocating motion ) 是由 王维 郑芳芳 朱丹丹 黄强 王宇征 祁稳 尹良杰 于 2021-10-10 设计创作，主要内容包括：本发明公开了一种AMT变速箱往复运动的换挡执行器,包括缸体和后盖,缸体呈横放的工字型结构,且左右两端分别设有第一腔体和第二腔体,第一腔体与第二腔体连通,后盖与缸体的第一腔体通过螺栓连接。当第一线圈或第二线圈通电时,动铁芯及推杆在电磁作用下向左或者向右移动,以使得与推杆配合的档位机构实现挂挡或者回空挡；当第一线圈和第二线圈均通电时,第一滑动块和第二滑动块位于缸体的中间位置。本发明所公开的AMT变速箱往复运动的换挡执行器,通过线圈通电的形式将电能转化为机械能,使得推杆左右往复式运动,从而实现变速器中的挂挡及摘挡。(The invention discloses a gear shifting actuator for the reciprocating motion of an AMT (automated mechanical transmission), which comprises a cylinder body and a rear cover, wherein the cylinder body is in a transverse I-shaped structure, the left end and the right end of the cylinder body are respectively provided with a first cavity and a second cavity, the first cavity is communicated with the second cavity, and the rear cover is connected with the first cavity of the cylinder body through a bolt. When the first coil or the second coil is electrified, the movable iron core and the push rod move leftwards or rightwards under the electromagnetic action, so that a gear mechanism matched with the push rod can realize gear engagement or neutral gear return; when first coil and second coil all are circular telegram, first slider and second slider are located the intermediate position of cylinder body. The gear shifting actuator for the AMT gearbox to reciprocate converts electric energy into mechanical energy in a coil electrifying mode, so that the push rod moves in a left-right reciprocating mode, and gear engaging and gear disengaging in the transmission are realized.)

1. A gear shifting actuator for the reciprocating motion of an AMT gearbox is characterized by comprising a cylinder body and a rear cover, wherein the cylinder body is in a transverse I-shaped structure, a first cavity and a second cavity are respectively arranged at the left end and the right end of the cylinder body, the first cavity is communicated with the second cavity, and the rear cover is connected with the first cavity of the cylinder body through a bolt;

a first static iron core and a second static iron core which are T-shaped and opposite are respectively arranged on the inner sides of the first cavity and the second cavity, the end face of the first static iron core is attached to the rear cover, a first framework is lapped on the side wall of the first static iron core and the other side face of the first cavity, and a first coil is wound on the outer side wall of the first framework; a second framework is lapped on the side wall of the second static iron core and the other side surface of the second cavity, and a second coil is wound on the outer side wall of the second framework;

a first sliding block and a second sliding block which are symmetrically arranged are arranged at the communication position of the first cavity and the second cavity, and the first sliding block is fixedly connected with the second sliding block; the first sliding block is matched with the first static iron core, a first slide way is arranged in the middle of the first static iron core, a movable iron core is arranged in the first slide way, and the movable iron core extends into the first sliding block and is connected with the first sliding block through a cotter pin; the second sliding block is matched with the second static iron core, a second slide way is arranged in the middle of the second static iron core, a push rod is arranged in the second slide way, and the push rod extends into the second sliding block and is connected with the second sliding block through a cotter pin;

when the first coil or the second coil is electrified, the movable iron core and the push rod move leftwards or rightwards under the electromagnetic action, so that a gear mechanism matched with the push rod is in gear or returns to neutral; when the first coil and the second coil are both electrified, the first sliding block and the second sliding block are located in the middle of the cylinder body.

2. The AMT transmission reciprocating shift actuator of claim 1 wherein said first slide has a first bushing on its inner sidewall and said plunger is in sliding engagement with said first bushing inner sidewall.

3. The AMT transmission reciprocating shift actuator of claim 1 wherein said second slide has a second bushing on an inside wall thereof, said push rod being in sliding engagement with said second bushing inside wall.

4. The AMT transmission reciprocating shift actuator of claim 1 wherein said cylinder block has a third bushing disposed at a middle portion thereof, and said first and second slide blocks are slidably engaged with an inner sidewall of said third bushing.

5. The AMT transmission reciprocating shift actuator of claim 1 wherein said first stationary core has a convex or stepped taper at the end facing said first slider, and said first slider has an inwardly concave or stepped taper thereon.

6. The AMT transmission reciprocating shift actuator of claim 5 wherein said first slide block has a first bumper on the end face of the tapered surface or stepped tapered surface.

7. The AMT transmission reciprocating shift actuator of claim 1 wherein said second stationary core has a convex or stepped taper at its end facing said second slider, and said second slider has an inwardly concave or stepped taper thereon.

8. The AMT transmission reciprocating shift actuator of claim 5 wherein said second slide block has a second bumper on the end face of the tapered surface or stepped tapered surface.

9. The AMT transmission reciprocating shift actuator of claim 1 wherein said cylinder block and said rear cover are connected by four bolts with an included angle of 90 ° between two adjacent bolts.

10. The AMT gearbox reciprocating shift actuator of claim 1 wherein said cylinder body further defines a plurality of mounting holes on an end surface thereof remote from said rear cover, said mounting holes being adapted to fixedly couple to a gearbox.

Technical Field

The invention relates to the field of automobile transmission equipment, in particular to a gear shifting actuator for an AMT gearbox to reciprocate.

Background

With the increasing requirements on the driving comfort and the technological sensation of the whole vehicle, the more highly-matched whole vehicle starts to be matched with the automatic transmission.

The control mechanism for realizing gear shifting of the existing AMT gearbox in the market is provided with a motor or realizes gear shifting through a pneumatic valve or a hydraulic valve and the like. By adopting the actuator, more types and types of electric control components are needed, more wire harness loops are needed, and the control program of the controller is more complicated.

Therefore, how to provide a gear shifting actuator which has a simple structure, can reciprocate and realize gear shifting and gear shifting becomes a technical problem which needs to be solved urgently in the field.

Disclosure of Invention

The invention aims to provide a gear shifting actuator for an AMT gearbox to reciprocate, which converts electric energy into mechanical energy in a coil electrifying mode, so that a push rod can reciprocate left and right, and gear engagement and gear disengagement in a transmission are realized.

According to one aspect of the invention, the gear shifting actuator for the reciprocating motion of the AMT gearbox comprises a cylinder body and a rear cover, wherein the cylinder body is in a transverse I-shaped structure, a first cavity and a second cavity are respectively arranged at the left end and the right end of the cylinder body, the first cavity is communicated with the second cavity, and the rear cover is connected with the first cavity of the cylinder body through a bolt;

a first static iron core and a second static iron core which are T-shaped and opposite are respectively arranged on the inner sides of the first cavity and the second cavity, the end face of the first static iron core is attached to the rear cover, a first framework is lapped on the side wall of the first static iron core and the other side face of the first cavity, and a first coil is wound on the outer side wall of the first framework; a second framework is lapped on the side wall of the second static iron core and the other side surface of the second cavity, and a second coil is wound on the outer side wall of the second framework;

a first sliding block and a second sliding block which are symmetrically arranged are arranged at the communication position of the first cavity and the second cavity, and the first sliding block is fixedly connected with the second sliding block; the first sliding block is matched with the first static iron core, a first slide way is arranged in the middle of the first static iron core, a movable iron core is arranged in the first slide way, and the movable iron core extends into the first sliding block and is connected with the first sliding block through a cotter pin; the second sliding block is matched with the second static iron core, a second slide way is arranged in the middle of the second static iron core, a push rod is arranged in the second slide way, and the push rod extends into the second sliding block and is connected with the second sliding block through a cotter pin;

when the first coil or the second coil is electrified, the movable iron core and the push rod move leftwards or rightwards under the electromagnetic action, so that a gear mechanism matched with the push rod is in gear or returns to neutral; when the first coil and the second coil are both electrified, the first sliding block and the second sliding block are located in the middle of the cylinder body.

Optionally, according to the shift actuator for the AMT transmission to reciprocate, a first bushing is disposed on an inner side wall of the first slideway, and the movable iron core is in sliding fit with the inner side wall of the first bushing.

Optionally, according to the shift actuator for the AMT gearbox to reciprocate of the present invention, a second bushing is disposed on an inner side wall of the second slideway, and the push rod is in sliding fit with the inner side wall of the second bushing.

Optionally, according to the shift actuator for the AMT gearbox to reciprocate of the present invention, a third bushing is disposed at a middle portion of the cylinder body, and the first sliding block and the second sliding block are both in sliding fit with an inner side wall of the third bushing.

Optionally, according to the shift actuator for the AMT gearbox to reciprocate of the present invention, an end of the first stationary iron core facing the first sliding block is a convex conical surface or a stepped conical surface, and the first sliding block is provided with an inward concave conical surface or a stepped conical surface.

Optionally, according to the shift actuator for the AMT gearbox to reciprocate of the present invention, a first buffer block is disposed on an end surface of the tapered surface or the stepped tapered surface of the first sliding block.

Optionally, according to the shift actuator for the AMT gearbox to reciprocate of the present invention, an end of the second stationary iron core facing the second sliding block is a convex conical surface or a stepped conical surface, and the second sliding block is provided with an inward concave conical surface or a stepped conical surface.

Optionally, according to the shift actuator for the AMT gearbox to reciprocate of the present invention, a second buffer block is disposed on an end surface of the tapered surface or the stepped tapered surface of the second sliding block.

Optionally, according to the shift actuator for the AMT gearbox to reciprocate, the cylinder body is connected to the rear cover through four bolts, and an included angle between two adjacent bolts is 90 °.

Optionally, according to the shift actuator for the AMT gearbox to reciprocate disclosed by the invention, a plurality of mounting holes are further formed in the end surface of the cylinder body, which is far away from the rear cover, and the mounting holes are used for being fixedly connected with the gearbox.

The gear shifting actuator for the AMT gearbox to reciprocate converts electric energy into mechanical energy in a coil electrifying mode, so that the push rod moves in a left-right reciprocating mode, and gear engaging and gear disengaging in the transmission are realized. The first coil and the second coil are respectively electrified to control the push rod or the movable iron core to slide, and then the first sliding block and the second sliding block are respectively combined with the movable iron core and the push rod to make the push rod and the movable iron core integrally move in a reciprocating mode left and right, so that the gear shifting and gear picking functions of the gearbox are completed; in addition, the matching surface between the static iron core and the sliding block is a conical surface or a stepped conical surface, the static iron core and the sliding block can obtain thrust with different characteristics, the diameter, the number of turns and the length of the coil are related to the size of the finally generated magnetic field, and the magnetic fields with different sizes can be obtained by changing the diameter, the number of turns or the length of the coil.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic structural diagram of a reciprocating shift actuator of an AMT transmission disclosed by the present invention.

Description of reference numerals: 1-a cylinder body; 2-rear cover; 3-a first backbone; 4-a first coil; 5-a first stationary core; 6-movable iron core; 7-a second backbone; 8-a second coil; 9-a second stationary core; 10-a first slider; 11-a second slider; 12-a push rod; 13-a first bushing; 14-a second bushing; 15-a third bushing; 16-a first buffer block; 17-a second buffer block; 18-cotter pin; 19-bolt; 20-mounting holes.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

According to the figure 1, the invention provides a gear shifting actuator for an AMT gearbox to reciprocate, which comprises a cylinder body 1 and a rear cover 2, wherein the cylinder body 1 is in a transverse I-shaped structure, the left end and the right end of the cylinder body are respectively provided with a first cavity and a second cavity, the first cavity is communicated with the second cavity, and the rear cover 2 is connected with the first cavity of the cylinder body 1 through a bolt 19.

A first static iron core 5 and a second static iron core 9 which are T-shaped and opposite are respectively arranged at the inner sides of the first cavity and the second cavity, the end surface of the first static iron core 5 is attached to the rear cover 2, a first framework 3 is lapped on the side wall of the first static iron core 5 and the other side surface of the first cavity, and a first coil 4 is wound on the outer side wall of the first framework 3; a second framework 7 is lapped on the side wall of the second static iron core 9 and the other side surface of the second cavity, and a second coil 8 is wound on the outer side wall of the second framework 7.

A first sliding block 10 and a second sliding block 11 which are symmetrically arranged are arranged at the communication position of the first cavity and the second cavity, and the first sliding block 10 is fixedly connected with the second sliding block 11; the first sliding block 10 is matched with the first static iron core 5, a first slideway is arranged in the middle of the first static iron core 5, a movable iron core 6 is arranged in the first slideway, and the movable iron core 6 extends into the first sliding block 10 and is connected with the first sliding block 10 through a cotter pin 18; second sliding block 11 cooperatees with second quiet iron core 9, and the middle part of second quiet iron core 9 is equipped with the second slide, is equipped with push rod 12 in the second slide, and push rod 12 extends to in the second sliding block 11 and is connected through split pin 18 with second sliding block 11.

When the invention is implemented, when the first coil 4 or the second coil 8 is electrified, the movable iron core 6 and the push rod 12 move leftwards or rightwards under the electromagnetic action, so that a gear mechanism matched with the push rod 12 realizes gear engagement or neutral return; when both the first coil 4 and the second coil 8 are energized, the first slider 10 and the second slider 11 are located at the intermediate position of the cylinder 1. In addition, the matching surface between the static iron core and the sliding block is a conical surface or a stepped conical surface, the static iron core and the sliding block can obtain thrust with different characteristics, the diameter, the number of turns and the length of the coil are related to the size of the finally generated magnetic field, and the magnetic fields with different sizes can be obtained by changing the diameter, the number of turns or the length of the coil.

Further, be equipped with first bush 13 on the inside wall of first slide, move iron core 6 and the inside wall sliding fit of first bush 13, effectively promote the sliding relation between first slide and the iron core 6 that moves, reduce coefficient of friction.

Further, be equipped with second bush 14 on the inside wall of second slide, push rod 12 and the inside wall sliding fit of second bush 14 effectively promote the sliding relation between second slide and the push rod 12, reduce coefficient of friction.

Further, the middle part of cylinder body 1 is equipped with third bush 15, and first sliding block 10 and second sliding block 11 all with the inside wall sliding fit of third bush 15, effectively promote the sliding relation between the inside wall of the middle part of first sliding block 10 and second sliding block 11 and cylinder body 1, reduce coefficient of friction.

Furthermore, the end of the first stationary core 5 facing the first sliding block 10 is a convex conical surface or a stepped conical surface, and the first sliding block 10 is an inward concave conical surface or a stepped conical surface. The thrust of the first stationary core 5 acting on the first sliding block 10 is ensured, and the distance between the first sliding block 10 and the first stationary core 5 is the air gap S, and when the air gap is the largest, the stroke is 0. At the same current, the greater the stroke, the greater the thrust obtained.

Still further, the first buffer block 16 is arranged on the end face of the conical surface or the stepped conical surface of the first sliding block 10, and the first buffer block 16 can effectively reduce the collision force generated when the first stationary core 5 contacts with the first sliding block 10.

Furthermore, one end of the second stationary core 9 facing the second sliding block 11 is a convex conical surface or a stepped conical surface, and the second sliding block 11 is an inward concave conical surface or a stepped conical surface. The thrust of the second stationary core 9 acting on the second sliding block 11 is ensured, and the distance between the second sliding block 11 and the second stationary core 9 is the air gap S, and when the air gap is the largest, the stroke is 0. At the same current, the greater the stroke, the greater the thrust obtained.

Still further, the second buffer block 17 is provided on the end face of the tapered surface or the stepped tapered surface of the second slide block 11, and the first buffer block 16 can effectively reduce the collision force generated when the first stationary core 5 contacts the first slide block 10.

Further, the cylinder body 1 is connected with the rear cover 2 through four bolts 19, and an included angle between two adjacent bolts 19 is 90 degrees.

Furthermore, a plurality of mounting holes 20 are further formed in the end face, away from the rear cover 2, of the cylinder body 1, and the mounting holes 20 are used for being connected and fixed with a gearbox.

Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.