Axial self-positioning radial supporting bearing
By using an axial self-positioning radial support method, the problem of axial displacement of needle rollers in radially supported bearings during high-speed rotation is solved, thereby achieving self-positioning of the bearing and improving its load-bearing capacity.
Patent Information
- Application Number
- CN202520465912.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-18
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2035-03-18
AI Technical Summary
When existing radial support bearings rotate at high speeds, the needle rollers are prone to axial displacement, which leads to a decrease in machining accuracy and instability in system operation, affecting the alignment of the shaft and the stator.
A limiting clamp is provided on the inner side of the outer ring of the bearing, and a limiting groove is opened on the cage. The one-way needle roller and the rotating needle roller are respectively provided with a limiting groove and a rolling groove to realize the self-positioning function of the bearing. The limiting clamp is engaged in the limiting groove and the rolling groove to prevent axial displacement.
It achieves axial self-positioning of the bearing, prevents needle roller misalignment, improves machining accuracy and system operation stability, and increases load-bearing capacity and torque load-bearing capacity.
Smart Images
Figure CN223635139U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of one-way bearing, and particularly to an axial self-positioning radial support bearing. BACKGROUND
[0002] The radial support bearing is a core component for bearing radial load (force perpendicular to the axis direction) in a mechanical transmission system, and can bear the radial load such as rotor self-weight, unbalanced force and vibration to ensure the centring of the shaft and the stator.
[0003] When the inner ring or the outer ring rotates in the design direction, the needle roller is wedged into the inclined surface raceway under the action of spring force and centrifugal force, and torque transmission is realized through friction self-locking; reverse overrun: when rotating reversely, the needle roller is disengaged from the wedged position to allow free rotation, avoiding reverse resistance.
[0004] However, in practice, it has been noticed that due to the special shape of the needle roller, the centrifugal force is easy to cause the needle roller to deviate axially when rotating at high speed, and when the needle roller deviates in the raceway, it will cause a slight angular deviation or displacement deviation in the transmission process, which may accumulate and thus reduce the machining precision or affect the running stability of the entire system, and after the deviation, the shaft rod will be radially moved, thereby affecting the centring of the shaft and the stator. CONTENT OF THE UTILITY MODEL
[0005] The utility model discloses an axial self-positioning radial support bearing, the inner side of the outer ring is provided with a limiting hoop, and a limiting clamping groove corresponding to the limiting hoop is formed in the retainer, and similarly, a limiting groove and a rolling groove corresponding to the limiting hoop are also formed in the one-way needle roller and the rotating needle roller, so that the self-positioning effect of the bearing during use is realized.
[0006] To achieve the above object, the utility model provides the following technical scheme:
[0007] The axial self-positioning radial support bearing comprises an outer ring, a vertical flange is arranged on one side of the outer ring, a side baffle is arranged in an annular array on the other side of the outer ring, and a limiting hoop is integrally arranged on the inner side of the outer ring.
[0008] The inner side of the outer ring is further provided with a retainer, and a limiting clamping groove corresponding to the limiting hoop is formed in the side of the retainer close to the outer ring, and the limiting hoop is clamped on the inner side of the limiting clamping groove.
[0009] According to the further technical scheme of the utility model, the retainer is provided with a ball groove in an annular array, and the inner side of the retainer is further provided with a one-way needle roller and a rotating needle roller in an annular array.
[0010] As a further technical scheme of the utility model, the plurality of one-way rolling needles are arranged in a group, and each group of the one-way rolling needles and the rotating rolling needles are arranged at intervals.
[0011] As a further technical scheme of the utility model, the plurality of one-way rolling needles are arranged in a group, and each group of the one-way rolling needles and the rotating rolling needles are arranged at intervals.
[0012] As a further technical scheme of the utility model, the plurality of one-way rolling needles are arranged in a group, and each group of the one-way rolling needles and the rotating rolling needles are arranged at intervals.
[0013] Compared with the prior art, the utility model has the advantages that:
[0014] The utility model discloses the inside of the outer ring sets the limit of the limit hoop, and the limit hoop is connected in the limit recess, the rolling recess and the limit slot respectively, thereby plays the role of axial positioning, and does not affect the normal rotation of the retainer, the one-way rolling needle and the rotating rolling needle, thereby realizes the axial self-positioning function of the bearing.
[0015] The utility model discloses the one-way rolling needle and the rotating rolling needle roll in the ball groove on the retainer, realize the one-way rotation of the bearing through the one-way rolling needle, and the rotating rolling needle supports the shaft rod that penetrates the inside, increases the carrying capacity of the bearing.
[0016] The utility model discloses the thickness of the side baffle of the outer ring side is lower than another hem, makes the torque direct action on the one-way rolling needle and the rotating rolling needle, increases the torque carrying capacity of the bearing, and the side baffle and the limit hoop cooperate with each other, prevent the axial wobble of the retainer when using. ACCURACY OF DRAWINGS
[0017] Figure 1 It is the structure schematic diagram of the utility model in use state.
[0018] Figure 2 It is the internal structure schematic diagram of the outer ring in the utility model.
[0019] Figure 3 It is the partial enlarged schematic diagram of the utility model in Figure 2
[0020] Figure 4 It is the three-dimensional structure schematic diagram of the retainer in the utility model.
[0021] Figure 5 It is the partial enlarged schematic diagram of the utility model in Figure 4
[0022] Figure 6 It is the position structure schematic view of one-way roller and rotating roller in the utility model.
[0023] Figure 7 It is the partial enlarged schematic view of Figure 6 the utility model.
[0024] In the figure,
[0025] Outer ring-1, retainer-2, one-way roller-3, limiting groove-31, rotating roller-4, rolling groove-41, side baffle-5, limiting hoop-6, ball groove-7, limiting clamping groove-8. Specific implementation
[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.
[0027] Please refer to Figures 1-7 The utility model embodiment provides axial self-positioning radial support bearing, including outer ring 1, the one side of outer ring 1 is provided with perpendicular hem, the other side is annular array and is equipped with side baffle 5, and the inner side of outer ring 1 is integrally equipped with limiting hoop 6;
[0028] The inner side of outer ring 1 is also equipped with retainer 2, and the side close to outer ring 1 of retainer 2 is provided with limiting clamping groove 8 corresponding with limiting hoop 6, and limiting hoop 6 is clamped in the inner side of limiting clamping groove 8.
[0029] In the embodiment, the retainer 2 is annular array and is provided with ball groove 7, and the inner side of retainer 2 is also placed with annular array one-way roller 3 and rotating roller 4.
[0030] Through the above technical scheme, one-way roller 3 and rotating roller 4 roll in ball groove 7 on retainer 2, one-way rotation of the bearing is realized through one-way roller 3, and rotating roller 4 supports shaft rod penetrating the inner side, thereby increasing the carrying capacity of the bearing.
[0031] Further, the one-way roller 3 is provided in multiple groups, and the one-way roller 3 and the rotating roller 4 in each group are spaced apart from each other.
[0032] Further, the ball groove 7 is respectively provided corresponding to the one-way roller 3 and the rotating roller 4, and the one-way roller 3 and the rotating roller 4 are respectively placed in the corresponding ball groove 7.
[0033] Specifically, the one-way roller 3 is provided with a limiting groove 31 on one side close to the outer ring 1, and the outer side of the rotating roller 4 is provided with a rolling groove 41, and the limiting hoop 6 in the outer ring 1 is respectively clamped in the limiting groove 31 and the rolling groove 41.
[0034] By adopting the above technical scheme, the inner side of the outer ring 1 is provided with the limiting limiting hoop 6, the limiting hoop 6 is respectively clamped in the limiting groove 31, the rolling groove 41 and the limiting clamping groove 8, thereby playing an axial positioning role, and not affecting the normal rotation of the retainer 2, the one-way roller 3 and the rotating roller 4, thereby realizing the axial self-positioning function of the bearing.
[0035] Further, the cross section of the one-way roller 3 is divided into a longer diagonal line and a shorter diagonal line, and the one-way roller 3 is inclined and placed in the ball groove 7, when the one-way roller 3 is subjected to a load in the inclined direction, the one-way roller 3 rotates, the longer diagonal line is in contact with the inner side of the outer ring 1, the contact area is increased, and the rotation is organized, when the one-way roller 3 is subjected to a load opposite to the inclined direction, the one-way roller 3 rotates, the shorter diagonal line is deviated to the outer ring 1, and the retainer 2 rotates on the inner side of the outer ring 1.
[0036] Further, when the retainer 2 rotates, the rotating roller 4 rolls on the inner side of the ball groove 7, and the rotating roller 4 rolls along the inner side of the outer ring 1, and the rotating roller 4 supports the shaft rod penetrating the inner side of the outer ring 1.
[0037] Further, the one-way roller 3 and the rotating roller 4 rotate, the limiting groove 31 on the one-way roller 3 and the rolling groove 41 on the rotating roller 4 slide along the outer side of the limiting hoop 6, and the retainer 2 is prevented from being separated from the inner side of the outer ring 1.
[0038] The working principle of the utility model is: when using, first, the end of the shaft rod penetrates the inner side of the outer ring 1, at this time, the outer side of the shaft rod is in contact with the one-way roller 3 and the rotating roller 4 respectively, when the shaft rod rotates in the direction allowed to rotate, the rotating roller 4 supports the shaft rod and rolls in the inner side of the ball groove 7, and the limiting groove 31 on the one-way roller 3 and the rolling groove 41 on the rotating roller 4 rotate along the outer side of the limiting hoop 6, play a positioning role, and when the retainer 2 rotates, the limiting clamping groove 8 on the retainer 2 rotates in cooperation with the limiting hoop 6, prevents the retainer 2 from being separated from the inner side of the outer ring 1 when rotating, thereby realizing the axial self-positioning of the retainer 2, the structure is simple, the operation is very convenient, and the labor intensity is effectively reduced.
[0039] It is apparent for a person skilled in the art that the present application is not limited to the details of the above-described exemplary embodiments, but that it can be implemented in other concrete forms without departing from the spirit or the essential characteristics of the present application. Therefore, the embodiments should be considered as exemplary and non-limiting, the scope of the present application being defined by the claims appended hereto rather than by the above description, and all the changes which fall within the meaning and the scope of the equivalent elements of the claims are intended to be embraced therein. Any reference signs in the claims should not be construed as limiting the claims to the figures in which the reference signs are used.
[0040] Furthermore, it should be understood that although the present specification is described in terms of embodiments, not every embodiment according to the present specification needs to exhibit each and every characteristic specified in the present specification. The specification can also be described in terms of a single preferred embodiment, it being understood that this single preferred embodiment can exhibit not every aspect or feature of the present specification. The specification can also be described in terms of a generic statement that the disclosure can include one, some, or all of a list of features. It is further understood that the specification is to be considered as a whole and not with reference to a single feature or design element alone.
Claims
1. An axially self-aligning radial support bearing, characterized by: Including the outer circle (1), the outer circle (1) one side is provided with vertical curling edge, the other side is annular array type and is provided with side baffle (5), the inner side of outer circle (1) is integrally provided with limit hoop (6); The inner side of the outer ring (1) is also provided with a retainer (2), and the side of the retainer (2) close to the outer ring (1) is provided with a limiting clamping groove (8) corresponding to the limiting hoop (6), and the limiting hoop (6) is clamped in the inner side of the limiting clamping groove (8).
2. The axial self-positioning radial support bearing of claim 1, wherein: The retainer (2) is annular array type and is provided with a ball groove (7), and the inner side of the retainer (2) is also placed annular array type one-way needle (3) and rotary needle (4).
3. The axial self-positioning radial support bearing of claim 2, wherein: The one-way needle (3) is a group, and each group of one-way needle (3) and rotary needle (4) are spaced apart.
4. The axially self-positioning radial support bearing of claim 3, wherein: The ball groove (7) is respectively arranged corresponding to the one-way needle (3) and the rotary needle (4), and the one-way needle (3) and the rotary needle (4) are respectively placed in the corresponding ball groove (7).
5. The axial self-positioning radial support bearing of claim 4, wherein: The side of the one-way needle (3) close to the outer ring (1) is provided with a limiting groove (31), and the outer side of the rotary needle (4) is provided with a rolling groove (41), and the limiting hoop (6) in the outer ring (1) is respectively clamped in the limiting groove (31) and the rolling groove (41).