Movable structure and cam shaft driven assembly with same

Abstract

The utility model provides a movable structure and a cam shaft driven assembly with the same. The movable structure comprises a movable part and a fixed part, the fixed part is sleeved with the movable part, and the movable part is movably arranged relative to the fixed part; the oil inlet channel and the oil outlet channel are communicated with each other and are both arranged in the fixed part, an oil inlet of the oil inlet channel and an oil outlet of the oil outlet channel are arranged at an interval and are both located on the outer side wall of the fixed part, and the oil outlet and at least part of the movable part are oppositely arranged; the annular groove is formed in the outer side wall of the fixing part in the circumferential direction of the fixing part and communicates with the oil inlet; and the annular groove is communicated with the oil feeding channel, so that the lubricating medium in the oil feeding channel flows into the oil inlet channel through the annular groove. By means of the technical scheme, the technical problem that in the prior art, the oil inlet efficiency of roller lubricating oil is low can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of movable structures, in particular to a movable structure and a camshaft driven assembly having the same. Background Art

[0002] Currently, in the field of camshaft technology, lubrication is often required to prevent high-temperature wear or sintering of the rollers of the driven components. This is typically accomplished by providing a lubricating oil delivery channel within the roller's rotating shaft, through which lubricating oil is delivered to the inner diameter of the roller, thereby achieving lubrication of the roller.

[0003] However, in order to ensure the oil supply efficiency, it is necessary to ensure the alignment between the inlet of the lubricating oil delivery channel and the oil delivery port of the oil delivery structure. If the misalignment between the two oil ports is large, the oil supply efficiency will be reduced, thereby creating the risk of lubrication failure. The existing technical means usually ensure the alignment between the two oil ports by setting corresponding positioning points on the oil delivery structure and the rotating shaft, and ensuring the alignment between the positioning points during assembly. From the perspective of the dimension chain, this method has a large tolerance accumulation and poor positioning accuracy, and the size of the positioning point will affect the measurement effect, resulting in greater difficulty in evaluating the alignment of the positioning points. In addition, this method is more complex, resulting in lower processing efficiency. Utility Model Content

[0004] The main purpose of the utility model is to provide a movable structure and a camshaft driven assembly having the same, so as to solve the technical problem of low oil feeding efficiency of roller lubricating oil in the prior art.

[0005] In order to achieve the above object, according to one aspect of the present invention, a movable structure is provided, comprising:

[0006] A movable part and a fixed part, wherein the movable part is sleeved on the fixed part and the movable part is movably arranged relative to the fixed part;

[0007] An oil inlet channel and an oil outlet channel are interconnected and are both provided in the fixed member. The oil inlet of the oil inlet channel and the oil outlet of the oil outlet channel are spaced apart and are both located on the outer side wall of the fixed member. The oil outlet is arranged opposite to at least a portion of the movable member.

[0008] The annular groove is arranged on the outer side wall of the fixing member along the circumference of the fixing member and is connected to the oil inlet; the annular groove is connected to the oil delivery channel so that the lubricating medium in the oil delivery channel flows into the oil inlet channel through the annular groove.

[0009] Furthermore, the width of the annular groove is greater than or equal to the maximum diameter of the oil delivery port of the oil delivery channel; and / or,

[0010] The cross section of the annular groove is U-shaped; and / or,

[0011] The oil inlet is arranged on the inner groove wall of the annular groove.

[0012] Furthermore, at least a portion of the movable member is spaced apart from the fixed member, and the oil outlet is communicated with the gap between at least a portion of the movable member and the fixed member.

[0013] Furthermore, there are at least two oil outlet channels, and the at least two oil outlet channels are spaced apart around at least a portion of the outer edge of the oil inlet channel; and / or,

[0014] The oil outlet channel includes a channel body, one end of the channel body is connected to the oil inlet channel, and the other end of the channel body is connected to the oil outlet; the cross-sectional area of ​​the oil outlet gradually increases from the end of the oil outlet close to the channel body to the end of the oil outlet away from the channel body; and / or,

[0015] The average cross-sectional area of ​​the oil inlet channel is greater than or equal to the average cross-sectional area of ​​the oil outlet channel.

[0016] Furthermore, the activity structure also includes:

[0017] The oil storage groove is arranged at the inner ring wall of the movable part to store the lubricating medium flowing from the oil outlet to the gap between at least part of the movable part and the fixed part.

[0018] Furthermore, there are multiple oil storage grooves, and the multiple oil storage grooves form a reticular structure; and / or,

[0019] The oil storage groove includes a first groove group and a second groove group, the first groove group includes at least two first strip grooves parallel to each other, and the at least two first strip grooves are spaced apart along a preset direction; the second groove group includes at least two second strip grooves parallel to each other, and the at least two second strip grooves are spaced apart along a preset direction; the first strip groove and the second strip groove are arranged at a first preset angle, and the first preset angle is greater than or equal to 10° and less than or equal to 30°; and / or,

[0020] At least a portion of the oil storage groove is arranged in the middle of the inner ring wall of the movable part.

[0021] Furthermore, the oil inlet passage includes a first oil inlet section and a second oil inlet section connected to each other, the first oil inlet section and the second oil inlet section are arranged at a second preset angle, and an end of the first oil inlet section away from the second oil inlet section forms an oil inlet; the oil outlet passage is connected to the second oil inlet section; the oil inlet passage also includes:

[0022] The oil storage cavity is arranged at one end of the second oil inlet section away from the first oil inlet section and is communicated with the second oil inlet section. The cross-sectional area of ​​the oil storage cavity is larger than the average cross-sectional area of ​​the oil inlet channel.

[0023] Furthermore, the activity structure also includes:

[0024] The oil blocking piece is movably arranged to move to an oil storage position and an oil drainage position; when the oil blocking piece is in the oil storage position, the oil blocking piece is interference fit with an end of the oil storage chamber away from the second oil inlet section to seal the oil storage chamber; when the oil blocking piece is in the oil drainage position, the oil blocking piece and the oil storage chamber avoid each other to allow the lubricating medium to flow out from the oil inlet channel.

[0025] According to another aspect of the present invention, a camshaft follower assembly is provided, comprising:

[0026] The activity structure provided above;

[0027] The follower body is connected to the fixed part of the movable structure; an oil delivery channel is provided in the follower body.

[0028] Furthermore, the fixing member is embedded in the body of the driven member;

[0029] wherein the oil delivery port of the oil delivery channel is arranged opposite to the annular groove of the movable structure; and / or,

[0030] The fixing member and the driven member body are arranged in an interference fit.

[0031] By applying the technical solution of the present invention, the lubricating medium in the oil supply channel can flow into the oil inlet channel and the oil outlet channel in sequence through the annular groove through the annular groove, and flow out from the oil outlet to the outer wall of the fixed part. Since the oil outlet and the movable part are at least partially arranged relative to each other, the lubricating medium flowing out of the oil outlet can lubricate the movable part, thereby avoiding dry grinding when the movable part moves relative to the fixed part. The setting of the annular groove makes it possible to ensure the circulation of the lubricating medium by only ensuring the alignment of the position in the axial direction of the fixed part when docking the oil supply channel and the oil supply channel, thereby reducing the requirements for installation accuracy during assembly. At the same time, such a setting also improves the oil supply efficiency. Therefore, the technical problem of low oil supply efficiency of roller lubricating oil in the prior art can be solved by the technical solution of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0033] Figure 1 shows a cross-sectional view of a fixing member provided according to the first embodiment of the present utility model;

[0034] Figure 2 A schematic structural diagram of a fixing member provided according to the first embodiment of the present utility model is shown;

[0035] Figure 3 FIG1 shows a schematic structural diagram of a movable part provided according to the first embodiment of the present utility model;

[0036] Figure 4 shows a cross-sectional view of a movable member provided according to the first embodiment of the present utility model;

[0037] Figure 5 FIG2 shows a front view of a camshaft follower assembly provided according to a second embodiment of the present utility model;

[0038] Figure 6 A cross-sectional view of a camshaft follower assembly provided according to a second embodiment of the present utility model is shown.

[0039] The above drawings include the following reference numerals:

[0040] 10. Moving parts;

[0041] 20. Fixing parts;

[0042] 30. Oil inlet channel; 31. Oil inlet; 32. First oil inlet section; 33. Second oil inlet section;

[0043] 40. Oil outlet channel; 41. Oil outlet;

[0044] 50. Annular groove;

[0045] 60. Oil delivery channel;

[0046] 70. Oil storage tank; 71. First strip groove; 72. Second strip groove;

[0047] 80. Oil storage chamber;

[0048] 90. Follower body. DETAILED DESCRIPTION

[0049] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0050] like Figures 1 to 4As shown, embodiment 1 of the present invention provides a movable structure, which includes a movable part 10 and a fixed part 20. The movable part 10 is sleeved on the fixed part 20, and the movable part 10 is movably arranged relative to the fixed part 20. The movable structure also includes an oil inlet channel 30 and an oil outlet channel 40 that are interconnected. The oil inlet channel 30 and the oil outlet channel 40 are both arranged in the fixed part 20. The oil inlet 31 of the oil inlet channel 30 and the oil outlet 41 of the oil outlet channel 40 are spaced apart and are both located at the outer wall of the fixed part 20. The oil outlet 41 is arranged opposite to at least a portion of the movable part 10. The movable structure also includes an annular groove 50, which is arranged on the outer wall of the fixed part 20 along the circumference of the fixed part 20 and is connected to the oil inlet 31; the annular groove 50 is connected to the oil delivery channel 60 so that the lubricating medium in the oil delivery channel 60 flows into the oil inlet channel 30 via the annular groove 50.

[0051] The movable structure provided by the first embodiment of the present invention can, through the provision of the annular groove 50, allow the lubricating medium in the oil delivery channel 60 to flow into the oil inlet channel 30 and the oil outlet channel 40 in sequence through the annular groove 50, and flow out from the oil outlet 41 to the outer wall of the fixed part 20. Since the oil outlet 41 and at least part of the movable part 10 are arranged relative to each other, the lubricating medium flowing out of the oil outlet 41 can lubricate the movable part 10, thereby avoiding dry grinding when the movable part 10 moves relative to the fixed part 20. The provision of the annular groove 50 makes it possible to ensure the circulation of the lubricating medium by only ensuring the alignment of the positions in the axial direction of the fixed part 20 when docking the oil delivery channel 60 and the oil delivery channel 30, thereby reducing the requirements for installation accuracy during assembly. At the same time, such a provision also improves the oil supply efficiency. Therefore, the movable structure provided by this embodiment can solve the technical problem of low oil supply efficiency of roller lubricating oil in the prior art.

[0052] Specifically, the fixed member 20 is a circular shaft, the movable member 10 is a rolling member, and the rolling member is rotatably arranged relative to the circular shaft. Specifically, the movable member 10 is a roller.

[0053] Specifically, the lubricating medium is lubricating oil.

[0054] Specifically, the width of the annular groove 50 is greater than or equal to the maximum diameter of the oil delivery port of the oil delivery channel 60. This structural arrangement further reduces the assembly precision requirements between the oil delivery channel 60 and the annular groove 50, thereby ensuring that the lubricating medium delivered from the oil delivery port is unlikely to overflow the annular groove 50, thereby further improving oil supply efficiency.

[0055] Specifically, the “groove width of the annular groove 50” refers to the groove width of the annular groove 50 in the axial direction of the fixing member 20. Specifically, when the oil delivery port is a circular port, the groove width of the annular groove 50 is greater than or equal to the diameter of the oil delivery port of the oil delivery channel 60.

[0056] Specifically, the cross section of the annular groove 50 is U-shaped, which facilitates the flow of the lubricating medium in the annular groove 50 , thereby increasing the speed at which the lubricating medium enters the oil inlet channel 30 and reducing the amount of lubricating medium remaining in the annular groove 50 .

[0057] Specifically, the oil inlet 31 is provided on the inner wall of the annular groove 50. With such a structural arrangement, the lubricating medium entering the annular groove 50 can directly enter the oil inlet channel 30 through the oil inlet 31 on the inner wall of the annular groove 50, thereby shortening the oil path and improving the oil supply efficiency.

[0058] In this embodiment, at least a portion of the movable member 10 is spaced apart from the fixed member 20, and the oil outlet 41 is connected to the gap between at least a portion of the movable member 10 and the fixed member 20. This structural arrangement allows the lubricating medium flowing out of the oil outlet 41 to flow into the gap between at least a portion of the movable member 10 and the fixed member 20, thereby effectively lubricating the movable member 10. Specifically, the movable member 10 and the fixed member 20 have a clearance fit.

[0059] Specifically, there are at least two oil outlet channels 40, spaced apart around at least a portion of the outer edge of the oil inlet channel 30. Specifically, at least a portion of the oil inlet channel 30 extends axially of the fixed member 20. The oil outlet channels 40 extend radially of the fixed member 20. This structural arrangement enhances oil uniformity through the provision of at least two oil outlet channels 40, ensuring a greater contact area between the movable member 10 and the lubricating medium, thereby further improving lubrication.

[0060] Specifically, the oil outlets 41 corresponding to the at least two oil outlet channels 40 are arranged opposite to each other, so that the lubricating medium flowing out can evenly cover the outer wall of the fixing member 20 .

[0061] Specifically, in order to increase the oil discharge speed and efficiency, and also to reduce the amount of lubricating medium remaining on the oil outlet 41, the oil outlet channel 40 includes a channel body, one end of which is connected to the oil inlet channel 30, and the other end of which is connected to the oil outlet 41; the cross-sectional area of ​​the oil outlet 41 gradually increases from the end of the oil outlet 41 close to the channel body to the end of the oil outlet 41 away from the channel body.

[0062] Specifically, the average cross-sectional area of ​​the oil inlet channel 30 is greater than or equal to the average cross-sectional area of ​​the oil outlet channel 40. With such a structural arrangement, the oil inlet efficiency of the oil inlet channel 30 can be further improved while also ensuring uniform oil outlet.

[0063] Specifically, the “average cross-sectional area of ​​the oil inlet passage 30 ” refers to the average cross-sectional area of ​​the oil inlet passage 30 in the radial direction of the oil inlet passage 30 . The “average cross-sectional area of ​​the oil outlet passage 40 ” refers to the average cross-sectional area of ​​the oil outlet passage 40 in the radial direction of the oil outlet passage 40 .

[0064] In this embodiment, the movable structure further includes an oil reservoir 70, disposed on the inner annular wall of the movable member 10, to store lubricating medium that flows from the oil outlet 41 into the gap between at least a portion of the movable member 10 and the fixed member 20. With this structural arrangement, since the stress points are concentrated along the line connecting the center of the movable member 10 and the center of the camshaft when the movable structure is in operation, resulting in high stress between the movable member 10 and the fixed member 20, the provision of the oil reservoir 70 enhances the oil storage capacity between the movable member 10 and the fixed member 20, thereby ensuring effective lubrication and preventing the lubricating medium from being squeezed out of the gap between the movable member 10 and the fixed member 20, which could result in dry grinding.

[0065] Specifically, the movable member 10 has an inner ring and an outer ring, and the outer ring is sleeved on the inner ring. The "inner ring wall of the movable member 10" refers to the inner ring of the movable member 10, and the inner ring is arranged opposite to the fixed member 20.

[0066] Specifically, in order to further enhance the oil storage capacity, there are multiple oil storage grooves 70, and the multiple oil storage grooves 70 form a mesh structure.

[0067] Specifically, the oil storage tank 70 includes a first tank group and a second tank group. The first tank group includes at least two mutually parallel first strip grooves 71, spaced apart along a predetermined direction. The second tank group includes at least two mutually parallel second strip grooves 72, spaced apart along a predetermined direction. The first strip grooves 71 and the second strip grooves 72 are arranged at a first predetermined angle, which is greater than or equal to 10° and less than or equal to 30°. This structural arrangement further enhances the oil storage capacity of the oil storage tank 70 through the staggered arrangement of the first and second tank groups.

[0068] Specifically, the preset direction is the axial direction of the movable member 10 .

[0069] Specifically, if Figure 4 As shown, the angle between the extending direction of the first strip groove 71 and the radial direction of the movable member 10 is α, 5°≤α≤15°. The angle between the extending direction of the second strip groove 72 and the radial direction of the movable member 10 is β, 5°≤β≤15°.

[0070] Specifically, in order to ensure the structural strength of the movable member 10 , at least a portion of the oil storage groove 70 is disposed in the middle portion of the inner annular wall of the movable member 10 .

[0071] In this embodiment, the oil inlet passage 30 includes a first oil inlet section 32 and a second oil inlet section 33 connected to each other. The first oil inlet section 32 and the second oil inlet section 33 are arranged at a second predetermined angle. The end of the first oil inlet section 32 away from the second oil inlet section 33 forms an oil inlet 31. The oil outlet passage 40 is connected to the second oil inlet section 33. The oil inlet passage 30 also includes an oil storage chamber 80, which is arranged at the end of the second oil inlet section 33 away from the first oil inlet section 32 and is connected to the second oil inlet section 33. The cross-sectional area of ​​the oil storage chamber 80 is larger than the average cross-sectional area of ​​the oil inlet passage 30. This structural arrangement allows the oil storage chamber 80 to store lubricating medium, thereby improving the oil storage capacity of the oil inlet passage 30 and providing a certain buffer time when the oil supply passage 60 is insufficient.

[0072] Specifically, in order to facilitate the processing of the structure, the second preset angle is 90°.

[0073] Specifically, “the cross-sectional area of ​​the oil storage chamber 80 ” refers to the cross-sectional area of ​​the oil storage chamber 80 in the radial direction of the oil storage chamber 80 .

[0074] Specifically, the movable structure further includes an oil blocking member, which is movably arranged to move between an oil storage position and an oil drain position. When the oil blocking member is in the oil storage position, the oil blocking member is interference-fitted with the end of the oil storage chamber 80 away from the second oil inlet section 33 to seal the oil storage chamber 80. When the oil blocking member is in the oil drain position, the oil blocking member and the oil storage chamber 80 avoid each other, allowing the lubricating medium to flow out of the oil inlet channel 30. With this structural arrangement, when the movable member 10 needs to be lubricated, the oil blocking member can block the oil storage chamber 80 to allow the lubricating medium in the oil inlet channel 30 to flow to the oil outlet channel 40. When the movable structure needs to be inspected and maintained, the oil blocking member and the oil storage chamber 80 can be made to avoid each other, allowing the lubricating medium in the oil inlet channel 30 to flow out, facilitating inspection and maintenance.

[0075] like Figure 5 and Figure 6 As shown, embodiment 2 of the present invention provides a camshaft follower assembly, which includes the movable structure and follower body 90 provided in embodiment 1. The follower body 90 is connected to the fixing part 20 of the movable structure; an oil delivery channel 60 is provided in the follower body 90.

[0076] The camshaft follower assembly provided in the second embodiment can, through the provision of the annular groove 50, allow the lubricating medium in the oil supply channel 60 to flow into the oil inlet channel 30 and the oil outlet channel 40 in sequence through the annular groove 50, and flow out from the oil outlet 41 to the outer wall of the fixed part 20. Since the oil outlet 41 and at least a portion of the movable part 10 are arranged relative to each other, the lubricating medium flowing out of the oil outlet 41 can lubricate the movable part 10, thereby avoiding dry grinding when the movable part 10 moves relative to the fixed part 20. The provision of the annular groove 50 allows the lubricating medium to flow only when the oil supply channel 60 and the oil supply channel 30 are docked, and the alignment of the positions in the axial direction of the fixed part 20 is required to ensure the flow of the lubricating medium, thereby reducing the requirements for installation accuracy during assembly. At the same time, such a provision also improves the oil supply efficiency. Therefore, the camshaft follower assembly provided in this embodiment can solve the technical problem of low oil supply efficiency of roller lubricating oil in the prior art.

[0077] Specifically, the fixed member 20 is embedded in the driven member body 90. The oil delivery port of the oil delivery channel 60 is positioned opposite the annular groove 50 of the movable structure. This arrangement facilitates the lubricating medium in the oil delivery channel 60 to flow directly into the annular groove 50 and, in turn, into the oil inlet channel 30.

[0078] Specifically, in order to enhance the integrity and compactness of the structure, a mounting groove is provided in the driven member body 90 , and both the fixed member 20 and the movable member 10 are disposed in the mounting groove.

[0079] Specifically, the fixing member 20 is embedded in the follower body 90. The fixing member 20 and the follower body 90 are arranged in an interference fit. This structural arrangement prevents the fixing member 20 from being dislodged from the follower body 90 and also increases the oil inlet pressure at the notch of the annular groove 50, thereby improving oil inlet efficiency.

[0080] Specifically, the camshaft follower assembly is a connecting component between the camshaft and the valve pushrod. The camshaft follower assembly is used to convert the rotational motion of the camshaft, thereby pushing the valve pushrod to open the valve.

[0081] From the above description, it can be seen that the above-mentioned embodiments of the present invention achieve the following technical effects: good processing technology, relatively low requirements for the processing accuracy of the annular groove, and no increase in the number of parts; strong sealing, without changing the interference fit of the driven shaft, and no risk of sealing failure; good assembly technology, reducing the difficulty of assembly, and no need for further measurement after assembly; simple structure and high reliability.

[0082] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0083] Unless otherwise specified, the relative arrangement of the parts and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application. Meanwhile, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to actual proportional relationships. Technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0084] In the description of this application, it should be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of this application; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0085] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0086] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of this application.

[0087] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A movable structure, characterized in that: include: A movable part (10) and a fixed part (20), wherein the movable part (10) is sleeved on the fixed part (20), and the movable part (10) is movably arranged relative to the fixed part (20); An oil inlet channel (30) and an oil outlet channel (40) are interconnected and are both arranged in the fixed part (20); an oil inlet (31) of the oil inlet channel (30) and an oil outlet (41) of the oil outlet channel (40) are arranged at intervals and are both located on the outer side wall of the fixed part (20); and the oil outlet (41) is arranged opposite to at least a portion of the movable part (10); An annular groove (50) is provided on the outer side wall of the fixing member (20) along the circumference of the fixing member (20) and is communicated with the oil inlet (31); the annular groove (50) is communicated with the oil delivery channel (60) so that the lubricating medium in the oil delivery channel (60) flows into the oil inlet channel (30) via the annular groove (50).

2. The movable structure according to claim 1, characterized in that: The groove width of the annular groove (50) is greater than or equal to the maximum diameter of the oil delivery port of the oil delivery channel (60); and / or, The cross section of the annular groove (50) is U-shaped; and / or, The oil inlet (31) is arranged on the inner groove wall of the annular groove (50).

3. The movable structure according to claim 1, characterized in that: At least a portion of the movable part (10) is spaced apart from the fixed part (20), and the oil outlet (41) is connected to the gap between at least a portion of the movable part (10) and the fixed part (20).

4. The movable structure according to claim 3, characterized in that: There are at least two oil outlet channels (40), and the at least two oil outlet channels (40) are spaced apart around at least a portion of the outer edge of the oil inlet channel (30); and / or, The oil outlet channel (40) comprises a channel body, one end of the channel body is connected to the oil inlet channel (30), and the other end of the channel body is connected to the oil outlet (41); along the direction from the end of the oil outlet (41) close to the channel body to the end of the oil outlet (41) away from the channel body, the cross-sectional area of ​​the oil outlet (41) gradually increases; and / or, The average cross-sectional area of ​​the oil inlet channel (30) is greater than or equal to the average cross-sectional area of ​​the oil outlet channel (40).

5. The movable structure according to claim 3, characterized in that: The activity structure also includes: An oil storage groove (70) is provided on the inner ring wall of the movable part (10) to store lubricating medium flowing from the oil outlet (41) to the gap between at least a portion of the movable part (10) and the fixed part (20).

6. The movable structure according to claim 5, characterized in that: There are multiple oil storage grooves (70), and the multiple oil storage grooves (70) form a reticular structure; and / or, The oil storage groove (70) includes a first groove group and a second groove group, the first groove group includes at least two first strip grooves (71) parallel to each other, and the at least two first strip grooves (71) are spaced apart along a preset direction; the second groove group includes at least two second strip grooves (72) parallel to each other, and the at least two second strip grooves (72) are spaced apart along the preset direction; the first strip grooves (71) and the second strip grooves (72) are arranged at a first preset angle, and the first preset angle is greater than or equal to 10° and less than or equal to 30°; and / or, At least a portion of the oil storage groove (70) is arranged in the middle of the inner ring wall of the movable part (10).

7. The movable structure according to claim 1, characterized in that: The oil inlet passage (30) comprises a first oil inlet section (32) and a second oil inlet section (33) connected to each other, wherein the first oil inlet section (32) and the second oil inlet section (33) are arranged at a second preset angle, and an end of the first oil inlet section (32) away from the second oil inlet section (33) forms the oil inlet port (31); the oil outlet passage (40) is connected to the second oil inlet section (33); the oil inlet passage (30) further comprises: An oil storage chamber (80) is provided at one end of the second oil inlet section (33) away from the first oil inlet section (32) and is communicated with the second oil inlet section (33). The cross-sectional area of ​​the oil storage chamber (80) is greater than the average cross-sectional area of ​​the oil inlet channel (30).

8. The movable structure according to claim 7, characterized in that: The activity structure also includes: The oil blocking member is movably arranged to move to an oil storage position and an oil drain position; when the oil blocking member is in the oil storage position, the oil blocking member is interference-fitted with an end of the oil storage chamber (80) away from the second oil inlet section (33) to seal the oil storage chamber (80); when the oil blocking member is in the oil drain position, the oil blocking member and the oil storage chamber (80) avoid each other to allow the lubricating medium to flow out of the oil inlet channel (30).

9. A camshaft follower assembly, characterized in that: include: The movable structure according to any one of claims 1 to 8; The driven member body (90) is connected to the fixed member (20) of the movable structure; an oil delivery channel (60) is provided in the driven member body (90).

10. The camshaft follower assembly according to claim 9, wherein: The fixing member (20) is embedded in the driven member body (90); wherein the oil delivery port of the oil delivery channel (60) is arranged opposite to the annular groove (50) of the movable structure; and / or, The fixing member (20) and the driven member body (90) are arranged in an interference fit.

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