CN112360875A

CN112360875A - Rotating device and bearing

Info

Publication number: CN112360875A
Application number: CN202011397242.0A
Authority: CN
Inventors: 林益梁; 吴元宇; 廖程华
Original assignee: Dongfeng Honda Engine Co Ltd
Current assignee: Dongfeng Honda Engine Co Ltd
Priority date: 2020-12-03
Filing date: 2020-12-03
Publication date: 2021-02-12
Anticipated expiration: 2040-12-03
Also published as: CN112360875B

Abstract

The invention relates to rotating equipment and a bearing. The rotating body is arranged in the movable hole in a penetrating way. Because the fitting surface that the inner wall of bearing inner race formed, set up for the axis slope of bearing inner race, the regulating part sets up in the activity downthehole and can butt on the fitting surface. The size adjusting member according to the outer diameter of the rotating body moves along the axial direction of the bearing inner ring so that the adjusting member abuts against the outer wall of the rotating body. Because the adjusting piece abuts against the matching surface, when the adjusting piece moves to different positions of the matching surface along the axis direction, the distance between the adjusting piece and the axis is different, so that the adjusting piece is suitable for rotating bodies with different sizes or rotating bodies with fluctuant outer diameter sizes. The stability of the connection between the rotating body and the bearing inner ring is improved by abutting the adjusting piece on the rotating body. The rotating body drives the bearing inner ring to rotate relative to the axis outer ring through the rolling body.

Description

Rotating device and bearing

Technical Field

The invention relates to the technical field of transmission structures, in particular to rotating equipment and a bearing.

Background

At present, the main function of the bearing is to support the mechanical rotating body and reduce the friction coefficient in the movement process of the mechanical rotating body. However, the conventional bearing is often fixed in inner bore diameter, and only the installation of the mechanical rotating body with the corresponding size can be realized, so that the bearing cannot adapt to the mechanical rotating body with fluctuating outer diameter size, and the adaptability is poor.

Disclosure of Invention

In view of the above, it is desirable to provide a rotating device and a bearing with better adaptability to the above problems.

A bearing comprises a bearing outer ring, a bearing inner ring, an adjusting piece and a rolling body, wherein the bearing inner ring is arranged in the bearing outer ring, the inner ring side of the bearing inner ring is enclosed to form a movable hole, a matching surface is formed on the inner wall of the movable hole, and the matching surface is obliquely arranged relative to the axis of the bearing inner ring; the adjusting piece is arranged in the movable hole and can abut against the matching surface, and the adjusting piece can move along the axial direction of the bearing inner ring; the rolling body is arranged between the bearing outer ring and the bearing inner ring.

In one embodiment, the inner wall of the movable hole is provided with an adjusting groove, the adjusting groove is formed towards the inner bottom wall of the movable hole to be the matching surface, and the adjusting piece can be arranged in the adjusting groove; the depth of the adjusting groove in the radial direction of the movable hole is smaller than the depth of the adjusting piece in the radial direction of the movable hole.

In one embodiment, the length of the adjusting groove in the axial direction of the bearing inner ring is greater than the length of the adjusting piece in the axial direction, and the width of the adjusting groove in the circumferential direction of the movable hole matches the width of the adjusting piece in the circumferential direction of the movable hole.

In one embodiment, the number of the adjusting grooves is multiple, the adjusting grooves are arranged around the axis of the bearing inner ring at intervals, the number of the adjusting pieces is matched with the number of the adjusting grooves, and each adjusting piece can correspondingly penetrate through one adjusting groove.

In one embodiment, the surface of the adjusting piece facing the matching surface is an adjusting surface, the adjusting surface is arranged obliquely relative to the axis of the bearing inner ring, and the inclination direction of the adjusting surface is the same as that of the matching surface.

In one embodiment, the other surface of the adjusting piece opposite to the adjusting surface is an abutting surface, and the abutting surface and the axis of the bearing inner ring are arranged in parallel.

In one embodiment, the bearing further comprises a pressing piece, a part of the matching surface, which is far away from the axis of the bearing inner ring, is a pressing position, the pressing piece is arranged on the bearing inner ring and can move along the axis direction of the bearing inner ring relative to the bearing inner ring, and one side of the pressing position of the pressing piece can abut against the adjusting piece.

In one embodiment, the side of the bearing inner ring close to the inner ring of the pressing part is surrounded by a matching hole communicated with the movable hole, and the radial dimension of the matching hole is larger than that of the movable hole; the pressing piece can penetrate through the matching hole, and the pressing piece can move along the axial direction of the bearing inner ring in the matching hole.

In one embodiment, an inner thread is arranged on the inner wall of the matching hole, an outer thread is arranged on the outer wall of the pressing piece, and the pressing piece is arranged in the matching hole in a penetrating mode so that the inner thread is meshed with the outer thread; or

In one embodiment, the bearing further comprises a locking member, the pressing member comprises a connecting portion and a pressing portion arranged on the connecting portion, the pressing portion can be arranged in the matching hole in a penetrating mode, a connecting hole is formed in the end face of the bearing inner ring, one end of the locking member is rotatably arranged on the connecting portion, the other end of the locking member can be arranged in the connecting hole in a penetrating mode, and the depth of the locking member penetrating through the connecting hole can be adjusted.

The rotating equipment comprises a rotating body and the bearing, wherein the rotating body is arranged in the movable hole in a penetrating mode, and the adjusting piece abuts against the outer wall of the rotating body.

The rotating device and the bearing enable the rotating body to penetrate through the movable hole. Because the fitting surface that the inner wall of bearing inner race formed, set up for the axis slope of bearing inner race, the regulating part sets up in the activity downthehole and can butt on the fitting surface. The size adjusting member according to the outer diameter of the rotating body moves along the axial direction of the bearing inner ring so that the adjusting member abuts against the outer wall of the rotating body. Because the adjusting piece abuts against the matching surface, when the adjusting piece moves to different positions of the matching surface along the axis direction, the distance between the adjusting piece and the axis is different, so that the adjusting piece is suitable for rotating bodies with different sizes or rotating bodies with fluctuant outer diameter sizes. The stability of the connection between the rotating body and the bearing inner ring is improved by abutting the adjusting piece on the rotating body. The rotating body drives the bearing inner ring to rotate relative to the axis outer ring through the rolling body.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Furthermore, the drawings are not to scale of 1:1, and the relative dimensions of the various elements in the drawings are drawn only by way of example and not necessarily to true scale. In the drawings:

FIG. 1 is a schematic view of a bearing in one embodiment;

FIG. 2 is an exploded view of the bearing shown in FIG. 1;

FIG. 3 is a cross-sectional view of the inner race and adjuster of the bearing of FIG. 2;

FIG. 4 is a schematic structural view of the bearing inner race of FIG. 3;

FIG. 5 is a top view of the inner race of the bearing shown in FIG. 4;

FIG. 6 is a schematic view of the engagement of the inner race of the bearing shown in FIG. 3 with the adjustment member;

FIG. 7 is a schematic view of the pressing member and the adjustment member of FIG. 2;

FIG. 8 is a schematic structural diagram of the outer race and the rolling elements of the bearing of FIG. 1;

FIG. 9 is a schematic structural view of a rotating apparatus in one embodiment;

fig. 10 is an enlarged view of fig. 9 at a.

Description of reference numerals:

10. bearing, 100, bearing outer ring, 200, bearing inner ring, 210, activity hole, 220, mating surface, 230, adjustment groove, 240, mating hole, 250, connection hole, 300, rolling body, 310, roller, 320, holder, 400, adjustment piece, 410, adjustment surface, 420, abutment surface, 500, compression piece, 510, connection portion, 600, locking piece, 20, rotating device, 202, rotating body, 204, position adjuster.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Referring to fig. 1 and 2, in a bearing 10 according to an embodiment of the present invention, the bearing 10 includes a bearing outer ring 100, a bearing inner ring 200, and a rolling element 300, the bearing inner ring 200 is disposed in the bearing outer ring 100, and the rolling element 300 is disposed between the bearing outer ring 100 and the bearing inner ring 200. When the rotating body is inserted into the bearing inner race 200, the rotating body drives the bearing inner race 200 to transmit power to the bearing outer race 100 via the rolling bodies 300.

Referring to fig. 2 and 3, in an embodiment, the inner ring side of the bearing inner ring 200 defines a movable hole 210, and a mating surface 220 is formed on an inner wall of the movable hole 210, and the mating surface 220 is disposed to be inclined with respect to an axis of the bearing inner ring 200. The bearing 10 further includes an adjusting member 400, the adjusting member 400 is disposed in the movable hole 210 and can abut against the mating surface 220, and the adjusting member 400 can move along the axial direction of the bearing inner ring 200.

The bearing 10 is configured such that the rotating body is inserted into the movable hole 210. Since the mating surface 220 formed by the inner wall of the bearing inner race 200 is disposed obliquely with respect to the axis of the bearing inner race 200, the adjuster 400 is disposed in the movable hole 210 and abuts against the mating surface 220. The size adjustment adjuster 400 according to the outer diameter of the rotator moves in the axial direction of the bearing inner race 200 so that the adjuster 400 abuts against the outer wall of the rotator. Because the adjusting member 400 abuts against the mating surface 220, when the adjusting member 400 moves to different positions of the mating surface 220 along the axial direction, the distance between the adjusting member 400 and the axis of the bearing inner ring 200 is different, so as to adapt to rotating bodies with different sizes or rotating bodies with fluctuating outer diameter sizes. The stability of the connection between the rotating body and the bearing inner race 200 is improved by the abutting of the adjuster 400 against the rotating body. The rotating body drives the bearing inner race 200 to rotate relative to the axis outer race via the rolling bodies 300.

Referring to fig. 3 to 5, in an embodiment, an adjusting groove 230 is formed on an inner wall of the movable hole 210, the adjusting groove 230 is formed as the mating surface 220 toward an inner bottom wall of the movable hole 210, and the adjusting member 400 can be disposed in the adjusting groove 230. Specifically, the depth of the adjustment groove 230 in the radial direction of the movable hole 210 is smaller than the depth of the adjustment member 400 in the radial direction of the movable hole 210. By arranging the adjusting groove 230, on one hand, the adjusting member 400 can be conveniently arranged to limit the adjusting member 400 along the circumferential direction of the movable hole 210, and on the other hand, the inclined matching surface 220 can be conveniently formed, so that the adjusting member 400 can move in the adjusting groove 230 and can effectively move along the matching surface 220, and the matching surface 220 can adjust the radial position of the adjusting member 400 relative to the axis.

Specifically, the length of the adjustment groove 230 in the axial direction of the bearing inner race 200 is greater than the length of the adjustment member 400 in the axial direction, and the width of the adjustment groove 230 in the circumferential direction of the movable hole 210 matches the width of the adjustment member 400 in the circumferential direction of the movable hole 210. Since the length of the adjustment groove 230 is greater than the length of the adjustment member 400, the adjustment member 400 is prevented from moving out of the adjustment groove 230 from the end surface of the bearing inner race 200 when moving in the axial direction of the bearing inner race 200. Since the width of the step-adjusting groove matches the width of the adjusting member 400, the adjusting groove 230 can be used to effectively limit the adjusting member 400 from rotating along the circumferential direction of the movable hole 210, so as to further improve the stability of the inner race 200 disposed on the rotating body through the adjusting member 400 and prevent the inner race 200 from rotating relative to the rotating body.

Alternatively, two inner sidewalls of the adjustment groove 230 in the circumferential direction of the movable hole 210 are disposed in parallel with each other, and two sidewalls of the adjustment member 400 in the circumferential direction of the movable hole 210 are disposed in parallel with each other. Since the adjusting member 400 moves toward or away from the axis when moving along the axis, the two inner sidewalls of the adjusting groove 230 located in the circumferential direction of the movable hole 210 are parallel to each other, so that the adjusting groove 230 is prevented from restricting the adjusting member 400 from moving toward or away from the axis. Alternatively, the size of the adjustment groove 230 in the direction toward the axis tends to increase.

In one embodiment, the number of the adjusting members 400 is multiple, and the adjusting members 400 are spaced around the axis of the bearing inner ring 200. The different adjusters 400 can be brought into contact with the rotating body at different positions corresponding to the positions of the rotating body, thereby improving the stability of the abutment against the rotating body. Specifically, the different adjusting members 400 are uniformly arranged around the axis of the bearing inner race 200. The uniformity of contact with the rotating body is improved.

In this embodiment, the number of the adjusting grooves 230 is plural, the plural adjusting grooves 230 are arranged at intervals around the axis of the bearing inner race 200, the number of the adjusting members 400 matches with the number of the adjusting grooves 230, and each adjusting member 400 can be correspondingly inserted into the adjusting groove 230. When in use, different adjusting pieces 400 can move in the corresponding adjusting grooves 230, so that different adjusting pieces 400 can be abutted against different positions of the rotating body, and the stability of the limiting movable hole 210 of the rotating body can be improved. Specifically, the different adjustment grooves 230 are uniformly arranged around the axis of the bearing inner race 200. The uniformity of different regulating parts 400 abutting on the rotating body can be improved, so that the operability of the regulating parts 400 on the force application of the rotating body is improved, and the stability of the rotation of the rotating body is improved.

Alternatively, the number of the adjustment grooves 230 may be two, three, four, etc., and different adjustment grooves 230 are spaced around the axis of the bearing inner race 200.

In this embodiment, the mating surface 220 is angled from 2 to 20 degrees relative to the axis of the bearing cone 200. Specifically, the included angle between the mating surface 220 and the axis of the bearing inner race 200 is other angles such as 5 °, 10 °, 15 °, etc., as long as the movement of the adjusting member 400 on the mating surface 220 can be realized to adjust the distance of the adjusting member 400 relative to the axis of the bearing inner race 200.

Referring to fig. 2 and 3, in an embodiment, a surface of the adjusting element 400 facing the mating surface 220 is an adjusting surface 410, the adjusting surface 410 is disposed obliquely with respect to an axis of the inner race 200, and an oblique direction of the adjusting surface 410 is the same as an oblique direction of the mating surface 220. Because the inclination directions of the adjusting surface 410 of the adjusting piece 400 and the matching surface 220 are the same, the fitting degree between the adjusting piece 400 and the matching surface 220 can be improved, and the stability of the adjusting piece 400 abutting against the matching surface 220 can be further improved. In other embodiments, the adjustment surface 410 may also be angled differently than the mating surface 220.

Optionally, the mating surface 220 is shaped to match the shape of the adjustment surface 410 of the adjustment member 400 to improve the stability of the fit of the adjustment surface 410 to the mating surface 220. In one embodiment. The mating face 220 is planar. The surface of the adjusting member 400 facing the mating member is a flat surface, which improves the stability of the adjusting member 400 abutting against the mating surface 220. In another embodiment, the mating surface 220 may also be an arcuate surface.

In one embodiment, the other surface of the adjusting member 400 opposite to the adjusting surface 410 is an abutting surface 420, and the abutting surface 420 and the axis of the inner bearing ring 200 are parallel to each other. Because the abutting surface 420 can abut against the rotating body, and the abutting surface 420 and the axis of the bearing inner ring 200 are arranged in parallel, the abutting degree of the abutting surface 420 abutting against the rotating body can be improved, and the stability of the rotating body being limited in the movable hole 210 through the adjusting piece 400 is further improved.

Referring to fig. 6, in the present embodiment, assuming that the angle formed between the mating surface 220 and the bearing inner race 200 is θ, the outer ring diameter of the bearing inner race 200 is Φ 2, the variable diameter of the space enclosed by the abutting surface 420 of the adjusting member 400 in the bearing inner race 200 is Φ 1, since the maximum thickness of the adjusting member 400 in the direction toward the axis of the bearing inner race 200 is a and the minimum wall thickness of the bearing inner race 200 is B, as shown in fig. 6:

Φ 1 ═ Φ 2-2Y-2A, where Y ═ tan θ (B/tan θ + X);

therefore, the variable diameter Φ 1 of the space surrounded by the contact surface 420 of the adjuster 400 is Φ 2-2(tan θ (B/tan θ + X) + a).

As can be seen from fig. 6, when the adjustment member 400 is moved in the axial direction of the bearing inner race 200, the value of the variable X can be adjusted, thereby achieving the value of the adjustment Φ 1. When the rotating body is inserted into the movable hole 210, the outer diameter of the rotating body is phi 1.

Referring to fig. 3 and 7, in an embodiment, the bearing 10 further includes a pressing element 500, a portion of the mating surface 220 that is far away from the axis of the inner race 200 is a pressing position, the pressing element 500 is disposed on the inner race 200 and can move along the axis of the inner race 200 relative to the inner race 200, and one side of the pressing position of the pressing element 500 can abut against the adjusting element 400. When the rotating body is used, the rotating body penetrates through the movable hole 210, the pressing piece 500 abuts against the adjusting piece 400 from one side of the pressing position and abuts against the adjusting piece 400 along the axis direction, so that the adjusting piece 400 can move towards the direction close to the axis, the adjusting piece 400 can abut against the rotating body more stably, and the abutting stability of the rotating body is improved. And the pressing member 500 can prevent the adjusting member 400 from exiting the adjusting groove 230 from one side of the pressing position.

Specifically, the inner ring side of the part of the bearing inner ring 200 close to the pressing piece 500 is surrounded by a fitting hole 240 communicated with the movable hole 210, and the radial dimension of the fitting hole 240 is larger than that of the movable hole 210; the pressing member 500 can be inserted into the fitting hole 240, and the pressing member 500 can move in the fitting hole 240 along the axial direction of the bearing inner race 200. The fitting hole 240 is provided to facilitate the penetration of the pressing member 500, so that the pressing member 500 can stably abut against the adjusting member 400.

In this embodiment, the outer diameter of the compression member 500 is sized to fit the inner diameter of the fitting hole 240. When pressing down piece 500 and wearing to locate in mating holes 240 to make the outer wall that presses down piece 500 can laminate on the inner wall of mating holes 240, improve the stability that presses down piece 500 and set up in mating holes 240, and then improve the stability of butt in regulating part 400.

In an embodiment, an inner wall of the fitting hole 240 is provided with an inner thread, an outer wall of the pressing member 500 is provided with an outer thread, and the pressing member 500 is inserted into the fitting hole 240, so that the inner thread is engaged with the outer thread. By screwing the pressing member 500 with respect to the bearing inner race 200, the pressing member 500 can be adjusted to move in the axial direction, and adjustment of movement of the adjusting member 400 in the axial direction is achieved.

Optionally, the pressing member 500 includes a connecting portion 510 and a pressing portion 520 disposed on the connecting portion 510, and the pressing portion 520 can be inserted into the fitting hole 240, so that the connecting portion 510 is connected to the end surface of the inner bearing ring 200. In the present embodiment, an external thread is provided on an outer wall of the pressing part 520. The arrangement of the pressing member 500 on the bearing inner race 200 is facilitated by the arrangement of the connecting portion 510.

In another embodiment, the bearing 10 further includes a locking member 600, the end surface of the bearing inner ring 200 is provided with a connecting hole 250, one end of the locking member 600 is rotatably disposed on the connecting portion 510, and the other end of the locking member 600 can penetrate through the connecting hole 250 and can adjust the depth penetrating through the connecting hole 250. The moving distance of the pressing member 500 relative to the axis of the bearing inner race 200 can be adjusted by adjusting the depth of the locking member 600 inserted into the coupling hole 250. Meanwhile, the other end of the locking member 600 is inserted into the connecting hole 250, so that the pressing member 500 can be effectively disposed on the bearing inner race 200. Specifically, the axial direction of the connection hole 250 coincides with the axial direction of the bearing inner race 200.

Further, an external thread is provided on an outer wall of the other end of the locker 600, an internal thread is provided on an inner wall of the connecting hole 250, and the other end of the locker 600 is inserted into the connecting hole 250 to engage the external thread with the internal thread.

Referring to fig. 2 and 8, in one embodiment, rolling element 300 includes roller 310 and retainer 320, roller 310 is disposed on retainer 320, and retainer 320 is disposed between inner race 200 and outer race 100. The provision of the retainer 320 facilitates the support of the roller 310 and the provision of the roller 310 facilitates the rotation of the inner race 200 relative to the outer race 100.

In the present embodiment, the roller 310 is plural, and the plural rollers 310 are arranged around the axis in a ring of rollers 310 formed around the axis. Specifically, the single bearing 10 includes two rings of rollers 310, so that the bearing 10 is formed as a double row tapered roller bearing 10, the double row tapered roller bearing 10 being capable of simultaneously receiving radial and axial forces. In other embodiments, the bearing 10 may also be other types of bearings 10 such as a rolling bearing 10, a self-aligning ball bearing 10, and the like.

Referring to fig. 9 and 10, in an embodiment, a rotating apparatus 20 includes a rotating body 202 and a bearing 10 in any of the above embodiments, the rotating body 202 is disposed in the movable hole 210, and the adjusting member 400 abuts against an outer wall of the rotating body 202. When the adjustment member 400 is moved in the axial direction to different positions of the mating surface 220, the distance between the adjustment member 400 and the axial line is different to accommodate different sized rotating bodies 202 or rotating bodies 202 having fluctuating outer diameter dimensions. The stability of the connection between the rotating body 202 and the bearing inner race 200 is improved by the abutment of the adjuster 400 against the rotating body 202. The rotating body 202 drives the bearing inner ring 200 to rotate relative to the axis outer ring through the rolling bodies 300.

In the present embodiment, the rotating body 202 is an electric tightening tool. The outer wall of the electric tightening tool is provided with soft materials such as rubber, so that the outer diameter of the electric tightening tool can be changed. In this embodiment, the electric tightening tool is inserted into the movable hole 210, and the adjuster 400 is pressed by the pressing member 500 so that the adjuster 400 abuts against and is pressed against the outer wall of the electric tightening tool, thereby improving the stability of the electric tightening tool in the movable hole 210. In other embodiments, the rotating body 202 may also rotate other rotating components such as a shaft.

In one embodiment, the rotating apparatus 20 further includes a position adjuster 204, and the position adjuster 204 is disposed on the bearing outer race 100. The position of the outer ring of the axis is adjusted by the position adjuster 204, and the position of the rotating body 202 provided in the movable hole 210 can be adjusted.

Specifically, the position adjuster 204 includes a first moving member and a second moving member disposed on the first moving member, the bearing outer ring 100 is disposed on the second moving member, the first moving member is used to drive the second moving member to drive the bearing outer ring 100 to move along a first direction, and the second moving member is used to drive the bearing outer ring 100 to move along a second direction, where the first direction intersects with the second direction.

Further, the position adjuster 204 further includes a third moving member, the first moving member is disposed on the third moving member, and the third moving member is configured to drive the first moving member to move along the third direction, so as to realize the movement of the bearing outer ring 100 along the third direction.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims

1. A bearing, characterized in that the bearing comprises:

a bearing outer race;

the bearing inner ring is arranged in the bearing outer ring, a movable hole is formed by enclosing the inner ring side of the bearing inner ring, a matching surface is formed on the inner wall of the movable hole, and the matching surface is obliquely arranged relative to the axis of the bearing inner ring;

the adjusting piece is arranged in the movable hole and can abut against the matching surface, and the adjusting piece can move along the axial direction of the bearing inner ring; and

the rolling body is arranged between the bearing outer ring and the bearing inner ring.

2. The bearing of claim 1, wherein the inner wall of the movable hole is provided with an adjusting groove, the adjusting groove is formed as the matching surface towards the inner bottom wall of the movable hole, and the adjusting piece can be arranged in the adjusting groove; the depth of the adjusting groove in the radial direction of the movable hole is smaller than the depth of the adjusting piece in the radial direction of the movable hole.

3. The bearing of claim 2, wherein a length of the adjustment groove in an axial direction of the bearing inner race is larger than a length of the adjustment member in the axial direction, and a width of the adjustment groove in a circumferential direction of the movable hole matches a width of the adjustment member in the circumferential direction of the movable hole.

4. The bearing of claim 2, wherein the number of the adjusting grooves is plural, the plural adjusting grooves are arranged at intervals around the axis of the bearing inner ring, the number of the adjusting pieces is matched with the number of the adjusting grooves, and each adjusting piece can correspondingly penetrate through one adjusting groove.

5. The bearing of claim 1, wherein the surface of the adjusting member facing the mating surface is an adjusting surface, the adjusting surface is disposed obliquely with respect to the axis of the bearing inner race, and the direction of inclination of the adjusting surface is the same as the direction of inclination of the mating surface.

6. The bearing of claim 5, wherein the other surface of the adjusting member opposite to the adjusting surface is an abutting surface, and the abutting surface and the axis of the bearing inner race are arranged in parallel.

7. The bearing according to any one of claims 1 to 6, further comprising a pressing member, wherein a portion of the mating surface that is farther from the axis of the bearing inner race is a pressing position, the pressing member is disposed on the bearing inner race and is movable relative to the bearing inner race along the axis direction of the bearing inner race, and the pressing member can abut against the adjusting member from one side of the pressing position.

8. The bearing of claim 7, wherein the inner ring side of the bearing inner ring near the pressing member portion encloses a fitting hole communicating with the movable hole, and the radial dimension of the fitting hole is larger than that of the movable hole; the pressing piece can penetrate through the matching hole, and the pressing piece can move along the axial direction of the bearing inner ring in the matching hole.

9. The bearing of claim 8, wherein the inner wall of the fitting hole is provided with an internal thread, the outer wall of the pressing member is provided with an external thread, and the pressing member is inserted into the fitting hole so that the internal thread is engaged with the external thread; or

Still include the retaining member, compress tightly the piece including connecting portion and set up in the portion that compresses tightly on the connecting portion, the portion that compresses tightly can wear to locate in the mating hole, the connecting hole has been seted up on the terminal surface of bearing inner race, the one end of retaining member rotationally set up in on the connecting portion, the other end of retaining member can wear to locate the connecting hole, and can adjust and wear to locate the degree of depth of connecting hole.

10. A rotary apparatus, characterized in that the rotary apparatus comprises:

a rotating body; and

the bearing according to any one of claims 1 to 9, wherein the rotating body is disposed in the movable hole, and the adjusting member abuts against an outer wall of the rotating body.