Structure and transmission device for realizing automatic combination and disconnection of power

Abstract

The utility model provides a structure and a transmission device for realizing automatic power combination and disconnection, and relates to the field of power transmission. When the initial state of the structure is a power-off state, the power source drives the first transmission part to rotate in the forward direction, so that the combination part can be driven to move towards the second transmission part along the transmission shaft through corresponding matching of the sliding way and the convex part, and then the first combination part and the second combination part are correspondingly meshed (namely combined); a power combination state is formed; on the contrary, the first transmission part is driven to rotate reversely, namely, the combination part can be driven to move in the direction away from the second transmission part along the transmission shaft, and then the first combination part and the second combination part are disconnected to form a power disconnection state. Therefore, automatic combination and disconnection of power can be achieved in the transmission process without a complex structure, and the manufacturing cost and the maintenance cost are effectively reduced.

Description

Technical Field

[0001] This application relates to the field of power transmission, and in particular to a structure and transmission device for realizing automatic engagement and disengagement of power. Background Technology

[0002] Engaging and disengaging power is a common requirement in transmission systems, such as gear shifting in gearboxes and decoupling multiple power sources in hybrid powertrains. Currently, this engagement and disengagement is typically achieved using synchronizers or clutches. For example, synchronizers in manual transmissions or some automatic transmissions (AMT, DCT) enable gear shifting; some automatic transmissions (AT, CVT) and new energy hybrid transmissions use clutches for gear shifting or power decoupling. However, whether synchronizers or clutches are used, an additional actuator is required. This actuator may be an electronically controlled actuator, necessitating the addition of a motor, lever mechanism, and control mechanism; or it may be a hydraulically controlled actuator, requiring a hydraulic source, valve system, and control mechanism. Therefore, existing structures for engaging and disengaging power are relatively complex and have high manufacturing costs. Utility Model Content

[0003] In view of this, the purpose of this application is to provide a structure and transmission device for realizing automatic engagement and disengagement of power, so as to solve the problems that the existing structures for realizing engagement and disengagement of power are relatively complex and have high manufacturing costs.

[0004] In accordance with the above objectives, a structure for automatically engaging and disengaging power is provided according to a first aspect of the present invention, wherein the structure for automatically engaging and disengaging power comprises:

[0005] Drive shaft; and

[0006] A transmission assembly is sleeved on the outer side of the transmission shaft; the transmission assembly includes a first transmission member, a connecting member, and a second transmission member. The first transmission member has one or more spiral slides, and the connecting member has protrusions that correspond one-to-one with the slides. When the first transmission member is driven to rotate, the protrusions can slide along the corresponding slides to drive the connecting member to rotate and move.

[0007] The connecting member further forms a first connecting portion, and the second transmission member forms a second connecting portion corresponding to the first connecting portion. The movement of the connecting member can correspondingly control the first connecting portion and the second connecting portion to engage or disengage, so as to engage or disengage the power.

[0008] Preferably, along the axial direction of the transmission shaft, the first transmission member is sleeved on the first end of the transmission shaft, and the first transmission member and the transmission shaft are formed with an interference fit.

[0009] Preferably, the first transmission member is formed as a stepped structure; along the axial direction of the first transmission member, the first transmission member has a first through hole corresponding to the transmission shaft.

[0010] Preferably, a first transmission part is formed on the outer wall of the large-diameter end of the first transmission member; the slide is formed on the outer wall of the small-diameter end of the first transmission member, and the slide is formed as a hollow structure.

[0011] Preferably, the coupling is formed as a sleeve-shaped structure to be loosely fitted onto the outer side of the drive shaft, and the coupling is rotatable relative to the drive shaft and can move along the axial direction of the drive shaft.

[0012] Preferably, the coupling is located between the first transmission member and the transmission shaft; the outer side wall of the coupling has one or more of the protrusions, and the protrusions are correspondingly inserted into the slide rail.

[0013] Preferably, the second end of the connector in the axial direction is formed with the first connecting portion, and the first connecting portion is formed as a plurality of first connecting teeth arranged in a circumferential manner.

[0014] Preferably, along the axial direction of the transmission shaft, the second transmission member is rotatably sleeved on the second end of the transmission shaft via a bearing; the second transmission member is formed in a stepped structure; along the axial direction of the second transmission member, the first end of the second transmission member is formed with a second engagement portion, the second engagement portion including a plurality of second engagement teeth arranged in a circumferential manner, the first engagement teeth being able to mesh with the second engagement teeth.

[0015] Preferably, both the drive shaft and the drive assembly are disposed inside the housing, and a limiting part corresponding to the protrusion is provided on the inner wall of the housing.

[0016] According to a second aspect of the present invention, a transmission device is provided, wherein the transmission device includes the structure described above for automatically engaging and disengaging power.

[0017] According to the structure and transmission device of this utility model for automatically engaging and disengaging power, the power can be automatically engaged and disengaged during transmission through the transmission shaft and transmission components. For example, when the initial state of this structure is the power-disengaged state, the power source drives the first transmission member to rotate in the forward direction, thereby driving the connecting member to move along the transmission shaft toward the second transmission member through the corresponding engagement of the slide and the protrusion, so that the first connecting part and the second connecting part are engaged (i.e., connected) to form a power-engaged state; conversely, driving the first transmission member to rotate in the reverse direction can drive the connecting member to move along the transmission shaft toward the direction away from the second transmission member, thereby disengaging the first connecting part and the second connecting part to form a power-disengaged state.

[0018] In this way, the power can be automatically engaged and disengaged during transmission without the need for a complex structure, effectively reducing manufacturing and maintenance costs.

[0019] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 This is an exploded view of the structure for automatically engaging and disengaging power according to an embodiment of this utility model.

[0022] Icons: 1-Drive shaft; 20-First transmission component; 200-First transmission part; 201-Slide rail; 21-Connecting component; 210-Protrusion; 211-First connecting part; 22-Second transmission component; 220-Second transmission part; 221-Second connecting part; 23-Bearing. Detailed Implementation

[0023] The following detailed embodiments are provided to help the reader gain a comprehensive understanding of the methods, apparatus, and / or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatus, and / or systems described herein will be apparent after understanding the disclosure of this application. For example, the order of operations described herein is merely illustrative and is not limited to the order set forth herein; changes that will be apparent after understanding the disclosure of this application are possible, except for operations that must occur in a specific order. Furthermore, for clarity and brevity, descriptions of features known in the art may be omitted.

[0024] The features described herein may be implemented in different forms and should not be construed as being limited to the examples described herein. Rather, the examples described herein have been provided merely to illustrate some of the many feasible ways of implementing the methods, apparatus, and / or systems described herein that will be apparent upon understanding the disclosure of this application.

[0025] Throughout the specification, when an element (such as a layer, region, or substrate) is described as being "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, it may be directly "on" another element, "connected to" another element, "bonded to" another element, "on" another element, or "covering" another element, or there may be one or more other elements in between. In contrast, when an element is described as being "directly on" another element, "directly connected to" another element, "directly bonded to" another element, "directly on" another element, or "directly covering" another element, there may be no other elements in between.

[0026] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0027] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0028] For ease of description, spatial relation terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relation terms are intended to include not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relation terms used herein will be interpreted accordingly.

[0029] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0030] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0031] The features of the examples described herein can be combined in various ways that will be apparent upon understanding the disclosure of this application. Furthermore, although the examples described herein have a wide variety of constructions, other constructions are possible, as will be apparent upon understanding the disclosure of this application.

[0032] According to a first aspect of this utility model, a structure for automatically engaging and disengaging power (hereinafter referred to as "this structure") is provided, such as... Figure 1 As shown, this structure includes a drive shaft 1 and a transmission assembly sleeved on the outer side of the drive shaft 1. The transmission assembly includes a first transmission member 20, a connecting member 21, and a second transmission member 22. Through the structural cooperation of these three components, automatic engagement and disengagement of power can be achieved during transmission. The specific structure and connection relationships of the aforementioned parts of the structure for achieving automatic engagement and disengagement of power according to this utility model will be described in detail below.

[0033] In this embodiment, as Figure 1As shown, along the axial direction of the drive shaft 1, the first transmission member 20 is sleeved on the first end of the drive shaft 1, and the first transmission member 20 and the drive shaft 1 form an interference fit (i.e., the first transmission member 20 and the drive shaft 1 are tightly connected, and this technical effect can also be achieved by components such as splines) to ensure the stability of power transmission. Specifically, the first transmission member 20 is formed into a stepped structure, and both its large-diameter end and small-diameter end are formed into a cylindrical shape; along the axial direction of the first transmission member 20, the first transmission member 20 forms a first through hole corresponding to the drive shaft 1. Further, the outer wall of the large-diameter end of the first transmission member 20 forms a first transmission part 200 (specifically formed into a gear tooth structure in this embodiment); the outer wall of the small-diameter end of the first transmission member 20 forms a slide 201 to facilitate cooperation with the following connecting member 21.

[0034] More specifically, if Figure 1 As shown, the number of slide rails 201 is one or more, and each slide rail 201 exists independently and is formed in a spiral structure. It should be noted that setting the slide rail 201 in a spiral shape means that the extension direction of the slide rail 201 is essentially part of a spiral line; when there are multiple slide rails 201, each slide rail 201 is a different part of the same spiral line, thus ensuring the stability of the movement of the coupling 21 along the drive shaft 1. It should be further noted that the specifications of the slide rail 201, such as its number, width, helix angle, and lift, are not specifically limited and should be determined comprehensively based on actual conditions, such as the torque to be transmitted and the time requirements for power switching.

[0035] In this embodiment, as Figure 1 As shown, the coupling 21 is formed as a sleeve-like structure, loosely fitted onto the outer side of the drive shaft 1, thereby allowing the coupling 21 to rotate relative to the drive shaft 1 and move along the axial direction of the drive shaft 1. In the transmission assembly, the coupling 21 is actually located between the inner wall of the small-diameter end of the first transmission member 20 and the outer wall of the drive shaft 1, that is, the movement of the coupling 21 along the drive shaft 1 can also be regarded as the extension and retraction of the coupling 21 relative to the first transmission member 20.

[0036] Furthermore, the outer wall of the coupling 21 has one or more protrusions 210, each corresponding to a slide rail 201, and each protrusion 210 is inserted into a corresponding slide rail 201. To ensure the stability and smoothness of the movement of the coupling 21, the specifications of the protrusion 210, such as its outer diameter, need to be adapted to the slide rail 201. In addition, in this embodiment, the slide rail 201 is set as a hollow structure, and the protrusion 210 extends to the outside of the first transmission member 20 through the slide rail 201, which helps to improve the stability of the movement of the coupling 21. Thus, when the first transmission part 200 of the first transmission member 20 is driven to rotate by a driving force source, the connection and cooperation between the slide rail 201 and the protrusion 210 can drive the protrusion 210 to slide along the slide rail 201, thereby driving the coupling 21 to move along the transmission shaft 1. That is, along the axial direction of the drive shaft 1, when the protrusion 210 is located at the end of the corresponding slide 201 near the first end of the drive shaft 1, the coupling 21 retracts into the first drive member 20; when the protrusion 210 is located at the end of the corresponding slide 201 near the second end of the drive shaft 1, the coupling 21 extends to the outside of the first drive member 20.

[0037] Furthermore, such as Figure 1 As shown, a first engagement portion 211 is formed at the second end of the coupling member 21 along the axial direction. The first engagement portion 211 is specifically formed as a plurality of first engagement teeth arranged in a circumferential manner. Correspondingly, along the axial direction of the transmission shaft 1, the second transmission member 22 is rotatably sleeved on the second end of the transmission shaft 1 via a bearing 23. The second transmission member 22 is also formed as a stepped structure, that is, a second transmission portion 220 for transmission is formed on the outer wall of its large-diameter end (i.e., the end of the second transmission member 22 away from the coupling member 21), and a second engagement portion 221 is formed on its small-diameter end (i.e., the end of the second transmission member 22 close to the coupling member 21). The second engagement portion 221 includes a plurality of second engagement teeth arranged in a circumferential manner, and the first engagement teeth can mesh with the second engagement teeth.

[0038] Thus, when the coupling member 21 retracts into the first transmission member 20, the first coupling portion 211 and the second coupling portion 221 are in a disconnected state, i.e., a power disconnected state is formed; while when the coupling member 21 extends to the outside of the first transmission member 20, the first coupling portion 211 and the second coupling portion 221 are in an engaged state, i.e., a power engaged state is formed.

[0039] Furthermore, although not shown in the figure, the aforementioned drive shaft 1 and drive assembly are both disposed inside the housing, and a limiting part corresponding to the protrusion 210 is also provided on the inner wall of the housing. This limiting part can be specifically formed as a limiting block connected to the housing by a spring. The limiting part should be positioned at the end of the slide 201 and correspond to the protrusion 210. That is, when the protrusion 210 moves to the end of the slide 201, the limiting part can restrict the further movement of the protrusion 210, thereby restricting the further movement of the coupling 21 to ensure the stable state of the coupling 21.

[0040] According to the structure and transmission device of this utility model that realizes automatic power engagement and disengagement as described above, the automatic engagement and disengagement of power can be achieved during the transmission process through the transmission shaft 1 and the transmission components. For example, when the initial state of this structure is the power disconnection state, the power source drives the first transmission member 20 to rotate forward through the first transmission part 200, thereby driving the connecting member 21 to move along the transmission shaft 1 toward the second transmission member 22 through the corresponding cooperation of the slide 201 and the protrusion 210, so that the first connecting part 211 and the second connecting part 221 are correspondingly engaged (i.e., engaged) to form a power engagement state; conversely, driving the first transmission member 20 to rotate in the opposite direction can drive the connecting member 21 to move along the transmission shaft 1 toward the direction away from the second transmission member 22, thereby causing the first connecting part 211 and the second connecting part 221 to disengage, so as to form a power disconnection state.

[0041] In this way, the power can be automatically engaged and disengaged during transmission without the need for a complex structure, effectively reducing manufacturing and maintenance costs.

[0042] According to a second aspect of the present invention, a transmission device is provided, the transmission device comprising the structure described above for automatically engaging and disengaging power.

[0043] Finally, it should be noted that the above-described embodiments are merely specific implementations of this application, used to illustrate the technical solutions of this application, and not to limit them. The protection scope of this application is not limited thereto. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments, or make equivalent substitutions for some of the technical features, within the technical scope disclosed in this application. Such modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application, and should all be covered within the protection scope of this application. Therefore, the protection scope of this application should be determined by the protection scope of the claims.

Claims

1. A structure for automatically engaging and disengaging power, characterized in that, The structure for automatically engaging and disengaging power includes: Drive shaft; and A transmission assembly is sleeved on the outer side of the transmission shaft; the transmission assembly includes a first transmission member, a connecting member, and a second transmission member. The first transmission member has one or more spiral slides, and the connecting member has protrusions that correspond one-to-one with the slides. When the first transmission member is driven to rotate, the protrusions can slide along the corresponding slides to drive the connecting member to rotate and move. The connecting member further forms a first connecting portion, and the second transmission member forms a second connecting portion corresponding to the first connecting portion. The movement of the connecting member can correspondingly control the first connecting portion and the second connecting portion to engage or disengage, so as to engage or disengage the power.

2. The structure for automatically engaging and disengaging power according to claim 1, characterized in that, Along the axial direction of the drive shaft, the first transmission component is sleeved on the first end of the drive shaft, and the first transmission component and the drive shaft are formed with an interference fit.

3. The structure for automatically engaging and disengaging power according to claim 2, characterized in that, The first transmission member is formed in a stepped structure; along the axial direction of the first transmission member, the first transmission member has a first through hole corresponding to the transmission shaft.

4. The structure for automatically engaging and disengaging power according to claim 3, characterized in that, The outer side wall of the large-diameter end of the first transmission member is formed with a first transmission part; the outer side wall of the small-diameter end of the first transmission member is formed with the slide rail, which is formed with a hollow structure.

5. The structure for automatically engaging and disengaging power according to claim 4, characterized in that, The coupling is formed as a sleeve-shaped structure to be loosely fitted onto the outer side of the drive shaft. The coupling is rotatable relative to the drive shaft and can move along the axial direction of the drive shaft.

6. The structure for automatically engaging and disengaging power according to claim 5, characterized in that, The coupling is located between the first transmission member and the transmission shaft; the outer side wall of the coupling has one or more of the protrusions, and the protrusions are correspondingly inserted into the slide rail.

7. The structure for automatically engaging and disengaging power according to claim 5, characterized in that, The second end of the connector along the axial direction has the first connecting portion, which is formed as a plurality of first connecting teeth arranged in a circumferential pattern.

8. The structure for automatically engaging and disengaging power according to claim 7, characterized in that, Along the axial direction of the transmission shaft, the second transmission member is rotatably sleeved on the second end of the transmission shaft via a bearing; the second transmission member is formed in a stepped structure; along the axial direction of the second transmission member, the first end of the second transmission member is formed with a second engagement portion, the second engagement portion including a plurality of second engagement teeth arranged in a circumferential manner, the first engagement teeth being able to mesh with the second engagement teeth.

9. The structure for automatically engaging and disengaging power according to claim 1, characterized in that, Both the drive shaft and the drive assembly are disposed inside the housing, and a limiting part corresponding to the protrusion is provided on the inner wall of the housing.

10. A transmission device, characterized in that, The transmission device includes a structure that enables automatic engagement and disengagement of power as described in any one of claims 1 to 9.

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