CN217814908U - Direct connection structure and electric actuator - Google Patents

Abstract

The utility model provides a directly link structure and electric actuator relates to the electric actuator field. The structure of directly linking includes output shaft and stroke axle, the output shaft includes connection plane and depressed part, connection plane with the axis direction of output shaft is perpendicular, the depressed part certainly connection plane to the inside of output shaft is recessed, the stroke axle includes the bellying, the bellying sets up in the depressed part when the output shaft is rotatory, the inside wall of depressed part can be right the bellying application of force, so that the stroke axle with the output shaft synchronous revolution. This directly link structure is through setting up the bellying in the depressed part for the bellying can not expose outside the depressed part, and at this moment, the bellying can not be established and is interfered with the outside bearing of output shaft, has guaranteed the normal operating of directly linking the structure.

Description

Direct connection structure and electric actuator

Technical Field

The application relates to the field of electric actuating mechanisms, in particular to a direct connection structure and an electric actuating mechanism.

Background

An electric actuator is a device capable of providing linear or rotational motion, and generally includes a motor and a direct connection structure, and the motor can output power outwards through the direct connection structure. The direct connection structure generally comprises an output shaft and a stroke shaft, a bearing is generally sleeved outside the output shaft, and the stroke shaft is fixedly connected with the output shaft so as to realize synchronous rotation of the stroke shaft and the output shaft.

At present, the general pin joint of stroke axle and output shaft, the outside of output shaft is generally equipped with the bearing, and the part of round pin may be from downthehole protrusion after the assembly is accomplished, can interfere with the bearing, influences the normal operating of directly connecting the structure.

SUMMERY OF THE UTILITY MODEL

In view of this, this application provides a directly link structure, the output shaft includes the depressed part that is recessed to the output shaft inside from the connection plane, and the stroke axle includes the bellying, and the bellying sets up in the depressed part, and when the output shaft was rotatory, the inside wall of depressed part can be to the bellying application of force for the stroke axle rotates with the output shaft synchronization. Through setting up the bellying in the depressed part for the bellying can not expose outside the depressed part, and at this moment, the bellying can not be established with the cover and is interfered at the outside bearing of output shaft, has guaranteed the normal operating of directly linking the structure.

According to an aspect of this application, provide a directly link structure, directly link structure includes output shaft and stroke axle, the output shaft includes connection plane and depressed part, connection plane with the axis direction of output shaft is perpendicular, the depressed part certainly connection plane to the inside of output shaft is recessed, the stroke axle includes the bellying, the bellying sets up in the depressed part, when the output shaft is rotatory, the inside wall of depressed part can be right the bellying application of force, so that the stroke axle with the output shaft synchronous revolution.

Preferably, the depressed part includes a first depressed part, the first depressed part includes a first wall surface and a second wall surface, the first wall surface and the second wall surface both respectively from the connection plane to the inside extension of output shaft, the bellying includes a first protruding piece, the first protruding piece includes a third wall surface and a fourth wall surface, the third wall surface with the laminating of first wall surface, the fourth wall surface with the laminating of second wall surface.

Preferably, the first wall surface and the second wall surface are both symmetrical about a plane where an axis of the output shaft is located, the first wall surface is perpendicular to a radial direction of the output shaft, the third wall surface and the fourth wall surface are symmetrical about a plane where an axis of the stroke shaft is located, and the axis of the stroke shaft is collinear with the axis of the output shaft.

Preferably, both the first wall surface and the second wall surface intersect an outer side wall of the first recess member.

Preferably, the first protruding member includes a first connecting surface and a second connecting surface, the first connecting surface, the third wall surface, the second connecting surface and the second connecting surface are sequentially connected end to end, the fourth wall surface is connected to the first connecting surface, and the first connecting surface, the second connecting surface and the outer side wall of the first protruding member form a side surface of the cylinder.

Preferably, the bellying still includes the second bellying, the second bellying with first bellying is connected, the second bellying is followed the axis direction of stroke axle extends, the depressed part includes the second depressed part, the second depressed part includes spacing hole, spacing hole edge the axis direction of output shaft extends, the second bellying sets up spacing downthehole, the inside wall in spacing hole with the laminating of the outside wall of second bellying.

Preferably, the second protrusion is cylindrical, a diameter of the second protrusion is equal to a distance between the third wall surface and the fourth wall surface, a diameter of the limiting hole is equal to a distance between the first wall surface and the second wall surface, and a distance between the first wall surface and the second wall surface is equal to a distance between the third wall surface and the fourth wall surface.

Preferably, the direct connection structure further includes an indicating portion connected to the stroke shaft, and the indicating portion rotates to indicate an opening degree of the output shaft when the stroke shaft and the output shaft rotate synchronously.

Preferably, the direct connection mechanism further comprises a gear and a bearing, the bearing is sleeved outside the output shaft, and the gear is sleeved outside the bearing.

According to another aspect of the present application, an electric actuator is provided, which includes the above-mentioned direct-connecting structure.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 shows a schematic cross-sectional structure of a direct connection structure according to an embodiment of the present invention, cut along an axis of an output shaft;

FIG. 2 is a mechanism schematic showing a perspective of the depression;

FIG. 3 shows a mechanism schematic of another perspective of the depression;

FIG. 4 is a mechanism schematic showing a perspective of the boss;

fig. 5 shows a mechanism schematic of another perspective of the boss.

An icon: 01-an output shaft; 02-stroke axis; 03-a bearing; 04-a gear; 100-a recess; 110-a first recessed member; 111-a first wall; 112-a second wall; 120-a second recessed member; 121-a limiting hole; 200-a boss; 210-a first projection; 211-a third wall; 212-a fourth wall; 220-a second projection; 300-a body portion; 400-an indication part; 410-a pointer; 420-opening degree indicating dial.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, devices, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and/or systems described herein will be apparent to those skilled in the art in view of the disclosure of the present application. For example, the order of operations described herein is merely an example, which is not limited to the order set forth herein, but rather, variations may be made in addition to operations which must occur in a particular order, which will be apparent upon understanding the disclosure of the present application. Moreover, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many possible ways to implement the methods, devices, and/or systems described herein that will be apparent after understanding the disclosure of the present application.

Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on," "connected to," coupled to, "over," or "overlying" another element, it may be directly "on," "connected to," coupled to, "over," or "overlying" the other element, or one or more other elements may be present therebetween. In contrast, when an element is referred to as being "directly on," "directly connected to," directly coupled to, "directly on" or "directly over" another element, there may be no intervening elements present.

As used herein, the term "and/or" includes any one of the associated listed items and any combination of any two or more of the items.

Although terms such as "first", "second", and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section referred to in the examples described herein may be termed a second element, component, region, layer or section without departing from the teachings of the examples.

For ease of description, spatial relationship terms such as "above … …", "upper", "below … …" and "lower" may be used herein to describe the relationship of one element to another element as shown in the figures. Such spatial relationship terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to other elements would then be oriented "below" or "lower" relative to the other elements. Thus, the term "above … …" includes both orientations "above … …" and "below … …" depending on the spatial orientation of the device. The device may also be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative terms used herein should be interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. The singular forms also are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" specify the presence of stated features, quantities, operations, elements, components, and/or combinations thereof, but do not preclude the presence or addition of one or more other features, quantities, operations, components, elements, and/or combinations thereof.

Variations from the shapes of the illustrations as a result, for example, of manufacturing techniques and/or tolerances, may be expected. Thus, examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shape that occur during manufacturing.

The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. Further, while the examples described herein have a variety of configurations, other configurations are possible, as will be apparent after understanding the disclosure of the present application.

According to the application, a direct connection structure is provided, as shown in fig. 1, the direct connection structure comprises an output shaft 01 and a stroke shaft 02, the output shaft 01 comprises a connection plane (an upper plane of the output shaft 01) and a concave portion 100, the connection plane is perpendicular to the axis direction of the output shaft 01, the concave portion 100 is concave from the connection plane to the inside of the output shaft 01, the stroke shaft 02 comprises a convex portion 200, the convex portion 200 is arranged in the concave portion 100, and when the output shaft 01 rotates, the inner side wall of the concave portion 100 can apply force to the convex portion 200, so that the stroke shaft 02 and the output shaft 01 rotate synchronously. The direct connection structure enables the protruding portion 200 not to be exposed outside the recessed portion 100 by arranging the protruding portion 200 in the recessed portion 100, and at this time, the protruding portion 200 does not interfere with the bearing 03 sleeved outside the output shaft 01, so that rolling of the bearing 03 can be guaranteed.

As shown in fig. 1, the protruding portion 200 includes a first protruding member 210, the recessed portion 100 includes a first recessed member 110, the first protruding member 210 is disposed in the first recessed member 110, as shown in fig. 2 and 3, the first recessed member 110 includes a first wall surface 111 and a second wall surface 112, both the first wall surface 111 and the second wall surface 112 are recessed toward the inside of the output shaft 01 from the connection plane (recessed from the top to the bottom), as shown in fig. 4 and 5, the protruding portion 200 includes a first protruding member 210, the first protruding member 210 includes a third wall surface 211 and a fourth wall surface 212, the first wall surface 111 abuts against the third wall surface 211, and the second wall surface 112 abuts against the fourth wall surface 212.

When the output shaft 01 rotates, the first wall surface 111 and the third wall surface 211 of the first protrusion 210 apply force to the second wall surface 112 and the fourth wall surface 212, respectively, so as to push the stroke shaft 02 to rotate, and thus power is transmitted from the output shaft 01 to the stroke shaft 02.

Preferably, the first wall surface 111 and the second wall surface 112 are symmetrical about a plane in which the axis of the output shaft 01 is located, the first wall surface 111 is perpendicular to the axis direction of the output shaft 01, and the second wall surface 112 is also perpendicular to the axis direction of the output shaft 01. The third wall 211 and the fourth wall 212 are symmetrical with respect to a plane in which the axis of the stroke shaft 02 is located, and the axis of the stroke shaft 02 is collinear with the axis of the output shaft 01.

Further, the first wall surface 111 and the second wall surface 112 intersect with an outer side wall of the first recess member 110, so that the first recess member 110 has a through groove penetrating through the first recess member 110 in a direction perpendicular to the axis of the output shaft 01, and at this time, the first wall surface 111 and the second wall surface 112 are two opposite inner walls of the through groove, and two opposite notches are formed on the outer side wall of the first recess member 110. Compared with the mode that holes are formed in the concave parts, the processing difficulty of forming the through grooves is lower, so that the first wall surface 111 and the second wall surface 112 can be conveniently processed, and the difficulty of manufacturing a direct connection structure is reduced.

Further, the first protrusion 210 further includes a first connection surface and a second connection surface, the first connection surface, the third wall 211, the second connection surface and the fourth wall 212 are sequentially connected end to end, and the fourth wall 212 is connected to the first connection surface, the third wall 211, the second connection surface and the fourth wall 212 form a side surface of the first protrusion 210, in the direct connection structure, the first protrusion 210 is disposed in the first recess 110, the first connection surface and the second connection surface can fill two gaps on the outer side wall of the first recess 100, and the first connection surface, the outer side wall of the first protrusion 210 and the second connection surface can form a side surface of a cylinder.

When the first recess member 110 is disposed in the first protrusion member 210, the first protrusion member 210 is not exposed to the outside of the first recess member 110, and does not interfere with the bearing 03 disposed on the outside of the first protrusion member 210. Meanwhile, the first connecting surface, the outer sidewall of the first protruding member 210, and the second connecting surface can form a side surface of the cylinder, thereby ensuring the close fit between the bearing 03 and the first recessed member 110.

As shown in fig. 1, 4 and 5, the protruding portion 200 further includes a second protruding member 220, the second protruding member 220 is connected to the first protruding member 210, the second protruding member 220 is located at a lower end of the first protruding member 210, and the second protruding member 220 extends along an axis direction of the stroke shaft 02, as shown in fig. 2 and 3, the recessed portion 100 further includes a second recessed member 120, the second recessed member 120 is provided with a limiting hole 121, the limiting hole 121 extends along the axis direction of the output shaft 01, an axis of the stroke shaft 02 is collinear with an axis of the output shaft 01, that is, an extending direction of the limiting hole 121 is the same as an extending direction of the second protruding member 220. The inside wall in spacing hole 121 and the laminating of the outside wall of second bellying 220, so, can carry out spacingly to second bellying 220 in footpath, and then carry out spacingly to stroke axle 02 in footpath for output shaft 01 when driving stroke axle 02 and moving, output shaft 01 can not appear at radial upward dislocation with stroke axle 02.

Preferably, the second protrusion 220 has a cylindrical shape, a diameter of the second protrusion 220 is equal to a distance between the third wall 211 and the fourth wall 212, a diameter of the stopper hole 121 is equal to a distance between the first wall 111 and the second wall 112, and a distance between the first wall 111 and the second wall 112 is equal to a distance between the third wall 211 and the fourth wall 212.

Further, the direct connection structure further includes an indication portion 400, the indication portion 400 is connected to the stroke shaft 02, and when the stroke shaft 02 and the output shaft 01 rotate synchronously, the indication portion 400 rotates to indicate the opening degree of the output shaft 01. Specifically, the indicating part 400 includes a pointer 410 and an opening degree indicating dial 420, the direct connection structure further includes a housing, the protruding part 200 is disposed inside the housing, the first end of the main body part 300 is connected with the protruding part 200, the second end of the main body part 300 protrudes from the inside of the housing, and the pointer 410 is connected with the second end of the main body part 300. An opening indicating plate 420 is connected to an end portion of the housing near the pointer 410, and a plurality of scale values are provided on the opening indicating plate 420 at intervals in the circumferential direction of the dial.

When the output shaft 01 rotates, the stroke shaft 02 and the output shaft 01 rotate synchronously, and the pointer 410 rotates under the driving of the row Cheng Zhou, so that the pointer 410 can point to one scale value of a plurality of scale values on the opening degree indicating disc 420, the rotation angle of the output shaft 01 can be monitored, and further the monitoring of the opening degree of the output shaft 01 is realized.

It should be noted that, the above description of the first protrusion 210, the second protrusion 220, the first recess 110 and the second recess 120 is only for convenience of describing the shapes of the protrusion 200 and the recess 100, and in the solid of the direct connection structure, the first protrusion 210 and the second protrusion 220 are two parts of the protrusion 200, and the first recess 110 and the second recess 120 are two parts of the recess 100.

As shown in fig. 1, the direct connection structure further includes a bearing 03 and a gear 04, the bearing 03 is sleeved outside the output shaft 01, and the gear 04 is sleeved outside the bearing 03. The gear 04 can be connected to a motor, and inputs power to the output shaft 01. Specifically, the output shaft 01 is provided with an output shaft gear, the output shaft gear is connected with the gear 04 through a planetary gear, the gear 04 is connected with a motor, the motor drives the gear 04 to rotate, the gear 04 and the output shaft 01 can be driven to rotate, and the output shaft 01 is driven to rotate.

According to another aspect of the present application, an electric actuator is provided, which includes the above-mentioned direct connection structure.

Further, the electric actuating mechanism further comprises a plurality of transmission parts, and the plurality of transmission parts can be sleeved on the stroke shaft 02.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims (10)

1. A direct connection structure is characterized by comprising an output shaft and a stroke shaft, wherein the output shaft comprises a connecting plane and a concave part, the connecting plane is vertical to the axis direction of the output shaft, the concave part is concave from the connecting plane to the inside of the output shaft, the stroke shaft comprises a convex part, the convex part is arranged in the concave part,

when the output shaft rotates, the inner side wall of the concave part can apply force to the convex part, so that the stroke shaft and the output shaft rotate synchronously.

2. The direct connection structure according to claim 1, wherein the recess comprises a first recess member comprising a first wall surface and a second wall surface both extending from the connection plane towards the inside of the output shaft, respectively,

the protruding portion comprises a first protruding piece, the first protruding piece comprises a third wall face and a fourth wall face, the third wall face is attached to the first wall face, and the fourth wall face is attached to the second wall face.

3. The direct connection structure of claim 2, wherein the first wall surface and the second wall surface are both symmetrical with respect to a plane in which an axis of the output shaft is located, the first wall surface being perpendicular to a radial direction of the output shaft,

the third wall surface and the fourth wall surface are symmetrical with respect to a plane in which an axis of the stroke shaft is located, the axis of the stroke shaft being collinear with an axis of the output shaft.

4. The direct connection structure of claim 2, wherein the first wall and the second wall both intersect an outer sidewall of the first recess.

5. The direct connection structure according to claim 4, wherein the first protrusion comprises a first connection face and a second connection face, the first connection face, the third wall face, the second connection face and the second connection face are connected end to end in sequence, and the fourth wall face is connected with the first connection face,

the first connecting surface, the second connecting surface and the outer side wall of the first protruding piece form the side surface of the cylinder.

6. The direct connection structure according to claim 3, wherein the boss further comprises a second boss connected to the first boss, the second boss extending in the axial direction of the stroke shaft,

the depressed part includes the second piece that caves in, the second piece that caves in includes spacing hole, spacing hole edge the axis direction of output shaft extends, the protruding piece setting of second is in spacing downthehole, the inside wall in spacing hole with the lateral wall laminating of the protruding piece of second.

7. The direct connection structure of claim 6, wherein the second protrusion is cylindrical and has a diameter equal to a distance between the third wall surface and the fourth wall surface,

the diameter of the limiting hole is equal to the distance between the first wall surface and the second wall surface, and the distance between the first wall surface and the second wall surface is equal to the distance between the third wall surface and the fourth wall surface.

8. The direct connection structure according to claim 1, characterized in that it further comprises an indicator part connected with the travel shaft,

when the stroke shaft and the output shaft rotate in synchronization, the indicating portion rotates so as to indicate the opening degree of the output shaft.

9. The direct connection structure of claim 1 further comprising a gear and a bearing, wherein the bearing is sleeved outside the output shaft, and the gear is sleeved outside the bearing.

10. An electric actuator, characterized in that it comprises a direct connection according to any of claims 1-9.

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