Joint ball bearing
By setting a seal between the inner and outer rings of the articular ball bearing and equipped with adjustment components, the problem of poor sealing effect caused by deformation of the seal ring in harsh environments is solved, and the sealing effect is restored and the service life is extended.
Patent Information
- Application Number
- CN202421944872.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-12
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-08-12
AI Technical Summary
In harsh environments, the sealing ring is easily deformed by the environment, resulting in poor sealing effect and affecting the function and service life of articular ball bearings.
An articular ball bearing is designed, which uses a seal between the inner ring and the outer ring and is equipped with an adjustment component. The position of the seal is adjusted by adjusting the assembly so that it fills between the inner ring and the outer ring to restore the sealing effect.
It effectively reduces the situation where impurities enter the inside of the joint ball bearing through the mating surface between the inner and outer rings, extends the service life, ensures the performance of functions and performance, and reduces the impact of harsh environment on the sealing effect.
Smart Images
Figure CN222836077U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of bearings, and in particular to a joint ball bearing. Background Art
[0002] Spherical plain bearings are a type of spherical sliding bearings that have the characteristics of large load capacity, impact resistance, corrosion resistance, wear resistance, self-alignment, and good lubrication. They are generally used in the field of low-speed and high-load engineering machinery, such as tunnel boring machines, excavators, bulldozers, etc.
[0003] Existing joint ball bearings are usually installed on sliding shafts, and are mainly composed of an outer ring and an inner ring. The outer ring is sleeved on the outside of the inner ring and the two are spherically matched. The inner ring rotates relative to the outer ring, and the inner ring is sleeved on the sliding shaft so that the inner ring and the outer ring move axially along the sliding shaft. Usually, a sealing ring is provided at the mating surface between the inner ring and the outer ring to reduce the mud, water, sand and other impurities in the working environment from entering the interior of the joint ball bearing through the mating surface between the inner ring and the outer ring.
[0004] However, in harsh and high-pressure environments such as tunnel boring machines, the sealing ring is easily affected by the environment and deforms itself, resulting in a poor sealing effect of the sealing ring. Utility Model Content
[0005] In view of this, the present application provides a joint ball bearing to solve the problem that the sealing ring is easily deformed under the existing harsh environmental pressure, resulting in the deterioration of the sealing effect of the sealing ring.
[0006] To achieve the above objectives, the present application provides a joint ball bearing, which adopts the following technical solution:
[0007] The present application provides a joint ball bearing, comprising an outer ring and an inner ring, wherein the outer ring is sleeved on the inner ring and the two are spherically matched, and the inner ring is slidably arranged on a sliding shaft, and the joint ball bearing also comprises:
[0008] at least one sealing member disposed between the inner ring and the outer ring, the sealing member being disposed close to an end of the inner ring;
[0009] At least one set of adjusting components, which acts on the sealing member and is suitable for adjusting the position of the sealing member so that the sealing member fills between the outer ring and the inner ring.
[0010] In a possible implementation, the sealing member includes a first sealing ring, and a first annular groove for accommodating the first sealing ring is provided on either the outer ring or the inner ring.
[0011] In one possible implementation, the adjustment assembly includes an adjustment member, and a first adjustment hole is opened on either the outer ring or the inner ring, the first adjustment hole is connected to the first annular groove, and the adjustment member extends into the first annular groove through the first adjustment hole to drive the first sealing ring to move, so as to fill the first sealing ring between the inner ring and the outer ring.
[0012] In a possible implementation, the adjustment assembly further includes a clamping ring, which is disposed in the first annular groove, abuts against the first sealing ring and is fixed to the first sealing ring, and the adjustment member is connected to the clamping ring.
[0013] In a possible implementation manner, the first sealing ring is an elastic ring.
[0014] In a possible implementation, the inner ring and the outer ring are both provided with the sealing member and the adjusting assembly;
[0015] The first sealing ring is also arranged between the inner ring and the sliding shaft, and the first annular groove is also provided on the inner wall of the inner ring;
[0016] The adjustment component is also arranged in the first annular groove and acts on the first sealing ring, and is suitable for driving the first sealing ring to deform so as to fill between the inner ring and the sliding shaft.
[0017] In a possible implementation manner, an airbag is provided inside the first sealing ring.
[0018] In a possible implementation, the joint ball bearing further includes at least one set of lubricating components, and the lubricating components include:
[0019] An oil storage cavity is provided in any one of the inner ring and the outer ring;
[0020] At least two oil guide channels, an oil inlet is provided on either the inner ring or the outer ring, and the oil guide channel is connected with the oil inlet and the oil storage cavity; an oil outlet is provided on the inner circumferential wall and the outer circumferential wall of the inner ring, and the oil guide channel is connected with the oil outlet and the oil storage cavity, and a plugging member is provided at the oil inlet;
[0021] The sealing member further comprises at least two second sealing rings, wherein the second sealing rings are arranged between the inner ring and the outer ring, and the oil outlet is arranged between any two of the second sealing rings.
[0022] In a possible implementation manner, one of the second sealing rings is disposed between the first sealing ring and the oil outlet, and there is a distance between the first sealing ring and the second sealing ring.
[0023] In a possible implementation manner, the oil outlet is also provided between the first sealing ring and the second sealing ring adjacent thereto.
[0024] The joint ball bearing provided by the present application realizes sealing between the inner ring and the outer ring by arranging a sealing member between the inner ring and the outer ring. When the joint ball bearing is in a harsh environment or a high-pressure environment, the sealing ring is prone to deformation, and the diameter may become larger or smaller. The position of the sealing member is adjusted by adjusting the component so that the sealing member is filled between the inner ring and the outer ring, thereby restoring the sealing between the inner ring and the outer ring and reducing the possibility of impurities entering the interior of the joint ball bearing through the mating surface between the inner and outer rings. This extends the service life of the joint ball bearing, ensures the function and performance of the joint ball bearing, reduces the influence of the harsh environment on the sealing effect of the joint ball, and ensures the safety of the joint ball bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present application and, together with the specification, are used to explain the principles of the present application. Obviously, the drawings described below are some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0026] Figure 1 A cross-sectional view of a joint ball bearing provided in an embodiment of the present application.
[0027] Description of reference numerals:
[0028] 1000-sliding shaft;
[0029] 100 - outer ring;
[0030] 200-inner circle;
[0031] 300 - sealing member; 310 - first sealing ring; 320 - second sealing ring; 330 - third sealing ring;
[0032] 400-adjustment assembly; 410-adjustment member; 420-pressure ring;
[0033] 500-first annular groove;
[0034] 600-oil lubrication assembly; 610-oil storage chamber; 620-oil guide channel; 630-oil inlet; 640-oil outlet;
[0035] 700-slide.
[0036] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION
[0037] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the present application. Instead, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.
[0038] Secondly, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.
[0039] In addition, it should be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.
[0040] Spherical plain bearings are a type of spherical sliding bearings that have the characteristics of large load capacity, impact resistance, corrosion resistance, wear resistance, self-alignment, and good lubrication. They are generally used in the field of low-speed and high-load engineering machinery, such as tunnel boring machines, excavators, bulldozers, etc.
[0041] Existing joint ball bearings are usually installed on sliding shafts, and are mainly composed of an outer ring and an inner ring. The outer ring is sleeved on the outside of the inner ring and the two are spherically matched. The inner ring rotates relative to the outer ring, and the inner ring is sleeved on the sliding shaft so that the inner ring and the outer ring move axially along the sliding shaft. Usually, a sealing ring is provided at the mating surface between the inner ring and the outer ring to reduce the mud, water, sand and other impurities in the working environment from entering the interior of the joint ball bearing through the mating surface between the inner ring and the outer ring.
[0042] However, in harsh and high-pressure environments such as tunnel boring machines, the sealing ring is easily affected by the environment and deformed, resulting in a poor sealing effect of the sealing ring. Impurities can easily enter the spherical bearing through the mating surface between the inner ring and the outer ring, affecting the function and performance of the spherical bearing, shortening its service life, and in severe cases, easily leading to damage to the main machine components.
[0043] In view of the above problems, the present application provides a joint ball bearing to solve the problem that the sealing ring is prone to deformation under the existing harsh environmental pressure, resulting in poor sealing effect of the sealing ring.
[0044] The present application is described in detail below with reference to the accompanying drawings and specific embodiments.
[0045] Reference Figure 1 As shown, an embodiment of the present application provides a joint ball bearing, comprising an outer ring 100 and an inner ring 200, wherein the outer ring 100 is sleeved on the inner ring 200 and the two are spherically matched, and the inner ring 200 is used for slidingly setting on a sliding shaft 1000, and the joint ball bearing also includes at least one seal 300 and at least one set of adjustment components 400.
[0046] The seal 300 is disposed between the inner ring 200 and the outer ring 100 , and the seal 300 is disposed close to the end of the inner ring 200 .
[0047] At least one set of adjustment components 400 , which act on the seal 300 and are suitable for adjusting the position of the seal 300 so that the seal 300 is filled between the outer ring 100 and the inner ring 200 .
[0048] In this way, during use, by setting the seal 300 between the inner ring 200 and the outer ring 100, the seal between the inner ring 200 and the outer ring 100 is achieved. When the joint ball bearing is in a harsh environment or a high-pressure environment, the seal ring is prone to deformation, and the diameter may become larger or smaller. The position of the seal 300 is adjusted by adjusting the component 400 so that the seal 300 is filled between the inner ring 200 and the outer ring 100, and the seal between the inner ring 200 and the outer ring 100 is restored, reducing the occurrence of impurities entering the joint ball bearing through the mating surface between the inner and outer rings 100, thereby extending the service life of the joint ball bearing, ensuring the function and performance of the joint ball bearing, reducing the impact of the harsh environment on the sealing effect of the joint ball, and ensuring the safety of the joint ball bearing.
[0049] In one example, if Figure 1 As shown, the -x end of the joint ball bearing is connected to the external environment, and the +x end is installed on the main machine. At this time, the -x end is greatly affected by the external environment. The first sealing ring 310 is arranged at the -x end and assisted by the adjustment component 400 to reduce the impact of the environment on the joint ball bearing seal.
[0050] Correspondingly, in another example, not shown in the figure, the -x end and the +x end of the joint ball bearing are both connected to the external environment, and the joint ball bearing is mounted on the main machine through the outer peripheral wall. At this time, the -x end and the +x end are both susceptible to environmental influences. The first sealing ring 310 is respectively arranged at the -x end and the +x end and assisted by the adjustment component 400 to adjust them respectively, so as to reduce the influence of the environment on the joint ball bearing seal.
[0051] The sealing member 300 may be made of rubber.
[0052] Specifically, the outer ring 100 includes a first outer ring 100 segment and a second outer ring 100 segment coaxially arranged, the end faces of the first outer ring 100 and the second outer ring 100 are abutted, and the first outer ring 100 and the second outer ring 100 are connected by bolts; the outer wall of the inner ring 200 is arranged in a convex spherical surface, and the first outer ring 100 segment and the second outer ring 100 segment are provided with a concave spherical surface matching the convex spherical surface. By arranging the outer ring 100 into two parts, the first outer ring 100 segment and the second outer ring 100 segment, and connecting them by bolts, the detachability of the outer ring 100 is ensured, and the outer ring 100 can be installed or removed as needed, ensuring the convenience of use and reusability of the outer ring 100.
[0053] Optionally, the seal 300 includes a first sealing ring 310, and a first annular groove 500 for accommodating the first sealing ring 310 is provided on either the outer ring 100 or the inner ring 200. Preferably, the first annular groove 500 is provided on the inner circumferential wall of the outer ring 100. The provision of the first annular groove 500 reserves space for adjustment of the first sealing ring 310, so as to reduce the influence of the first sealing ring 310 on the spherical fit between the inner ring 200 and the outer ring 100.
[0054] In some examples, the outer peripheral wall of the first sealing ring 310 abuts against the first annular groove 500 .
[0055] It should be noted that, in different examples, the first sealing ring 310 is composed of at least two groups of materials: hard material and soft material. Therefore, there are at least two implementation methods for adjusting the position of the first sealing ring 310 by the adjustment component 400:
[0056] First, the first sealing ring 310 is made of a hard material. When the joint ball bearing is in a harsh environment or a high-pressure environment, the diameter of the inner ring 200 of the sealing ring becomes larger or smaller, and the diameter no longer changes in this environment. The adjustment component 400 adjusts the position of the first sealing ring 310 along the axial direction of the sliding shaft 1000 so that the inner circumferential wall of the sealing ring abuts against the outer circumferential wall of the inner ring 200, and the outer circumferential wall of the sealing ring abuts against the first annular groove 500, so as to achieve the first sealing ring 310 to seal between the inner ring 200 and the outer ring 100.
[0057] Secondly, the first sealing ring 310 is made of soft material. When the joint ball bearing is in a harsh environment or a high-pressure environment, the diameter of the inner ring 200 of the sealing ring becomes larger or smaller, but the sealing ring still has elastic deformation. The adjustment component 400 adjusts the position of the first sealing ring 310 along the axial direction of the sliding shaft 1000 to make the first sealing ring 310 elastically deform until the inner circumferential wall of the sealing ring abuts against the outer circumferential wall of the inner ring 200, and the outer circumferential wall of the sealing ring abuts against the first annular groove 500, so as to realize the sealing between the inner ring 200 and the outer ring 100 by the first sealing ring 310.
[0058] It should be noted that the material of the sealing ring includes but is not limited to the above-mentioned ones, and any embodiments that can adjust the sealing ring to restore its sealing performance are within the protection scope of this application.
[0059] Specifically, the adjustment assembly 400 includes an adjustment member 410. A first adjustment hole is provided on either the outer ring 100 or the inner ring 200. The first adjustment hole is arranged along the axial direction of the joint ball bearing. The first adjustment hole is communicated with the first annular groove 500. The adjustment member 410 extends into the first annular groove 500 through the first adjustment hole to drive the first sealing ring 310 to move, so as to fill the first sealing ring 310 between the inner ring 200 and the outer ring 100. By adjusting the position of the adjustment member 410, the position of the first sealing ring 310 is adjusted along the axial direction of the joint ball bearing until the first sealing ring 310 is filled between the inner ring 200 and the outer ring 100, so as to achieve sealing between the inner ring 200 and the outer ring 100.
[0060] In some embodiments, the adjusting member 410 may be an adjusting bolt, and a thread matching the adjusting bolt is formed on the first adjusting hole, and the position of the first sealing ring 310 can be adjusted by screwing the adjusting bolt.
[0061] Furthermore, the adjustment component 400 further includes a clamping ring 420, which is disposed in the first annular groove 500, abuts against and is fixed to the first sealing ring 310, and the adjustment member 410 is fixedly connected to the clamping ring 420. The arrangement of the clamping ring 420 increases the contact area between the adjustment component 400 and the first sealing ring 310, so that when the adjustment component 400 applies an external force to the first sealing ring 310, the first sealing ring 310 is evenly stressed, thereby improving the adjustment stability of the adjustment component 400 on the first sealing ring 310.
[0062] Preferably, the first sealing ring 310 is an elastic ring. The elastic setting of the first sealing ring 310 improves its adaptability to contact surfaces of different diameters. At the same time, when the adjustment component 400 applies a force to the first sealing ring 310, the first sealing ring 310 can have a better filling effect on the first annular groove 500 through its own deformation.
[0063] In some examples, a seal 300 and an adjustment assembly 400 are disposed on both the inner ring 200 and the outer ring 100 .
[0064] Among them, the first sealing ring 310 is also arranged between the inner ring 200 and the sliding shaft 1000, and the first annular groove 500 is also opened on the inner wall of the inner ring 200. The first annular groove 500 and the first sealing ring 310 are arranged close to the -x end of the joint ball bearing; the adjustment component 400 is also arranged in the first annular groove 500 and acts on the first sealing ring 310, and is suitable for driving the first sealing ring 310 to deform so as to fill between the inner ring 200 and the sliding shaft 1000.
[0065] The first sealing ring 310 disposed between the inner ring 200 and the sliding shaft 1000 and the corresponding adjustment assembly 400 enable the first sealing ring 310 to fill the space between the inner ring 200 and the sliding shaft 1000 to ensure the sealing between the inner ring 200 and the sliding shaft 1000.
[0066] Furthermore, an airbag is provided inside the first sealing ring 310. As can be seen from the above, the first sealing ring 310 is an elastic ring, and by providing the airbag inside the first sealing ring 310, the elastic deformation of the first sealing ring 310 is further increased, and the adjustment efficiency of the adjustment assembly 400 is improved.
[0067] In addition, the joint ball bearing also includes at least one group of lubricating components 600, the lubricating components 600 include an oil storage chamber 610 and at least two oil guide channels 620, wherein the oil storage chamber 610 is opened in either the inner ring 200 or the outer ring 100; an oil inlet 630 is opened on either the inner ring 200 or the outer ring 100, and the oil guide channel 620 connects the oil inlet 630 and the oil storage chamber 610; oil outlets 640 are opened on the inner circumferential wall and the outer circumferential wall of the inner ring 200, the oil guide channel 620 connects the oil outlet 640 and the oil storage chamber 610, and a sealing member is provided at the oil inlet 630.
[0068] In some examples, one or more oil inlets 630 may be provided according to actual needs to meet the lubrication requirements of the joint ball bearing and the host connected thereto.
[0069] The lubricating oil enters the oil guide channel 620 through the oil inlet 630, then enters the oil storage chamber 610 to store part of the lubricating oil, and enters other lubricating oil channels to flow to the oil outlet 640. By opening the oil outlet 640 on the inner circumferential wall and the outer circumferential wall of the inner ring 200, the lubricating oil can enter the mating surface between the inner ring 200 and the outer ring 100 and the mating surface between the inner ring 200 and the sliding shaft 1000, so as to achieve lubrication between the inner ring 200 and the outer ring 100, and lubrication between the inner ring 200 and the sliding shaft 1000, so as to reduce the friction between the two components at the mating surface and reduce wear.
[0070] Correspondingly, the seal 300 also includes at least two second sealing rings 320, which are arranged between the inner ring 200 and the outer ring 100. At least two second annular grooves for accommodating the second sealing rings 320 are opened on the inner circumferential wall of the outer ring 100, and the oil outlet 640 is arranged between any two second sealing rings 320.
[0071] The second sealing ring 320 seals the lubricating oil filled in the mating surface between the inner ring 200 and the outer ring 100, reduces the amount of lubricating oil overflowing from the mating surface, and ensures the lubrication requirement between the inner ring 200 and the outer ring 100.
[0072] In addition, if Figure 1 As shown, the seal 300 further includes a third sealing ring 330 , and a third annular groove for accommodating the third sealing ring 330 is provided on the inner circumferential wall of the inner ring 200 , and the third annular groove is arranged close to the +x end of the inner ring 200 .
[0073] A first sealing ring 310 arranged near the inner ring 200-x end and a third sealing ring 330 arranged near the inner ring 200+x end are arranged between the inner ring 200 and the sliding shaft 1000. The oil outlet 640 opened on the inner circumferential wall of the inner ring 200 is arranged between the first sealing ring 310 and the third sealing ring 330. The two seal the lubricating oil filled in the mating surface between the inner ring 200 and the sliding shaft 1000 to ensure the lubrication requirement between the inner ring 200 and the sliding shaft 1000.
[0074] Furthermore, an annular groove is provided on the inner peripheral wall of the third sealing ring 330. By providing the annular groove, the number of contact surfaces between the third sealing ring 330 and the sliding shaft 1000 is increased from one to two, thereby realizing double sealing of the third sealing ring 330. At the same time, the provision of the annular groove forms an annular accommodation space between the third sealing ring 330 and the sliding shaft 1000, which can accommodate the lubricating oil seeping from the inside of the bearing and the impurities that may enter from the outside of the bearing.
[0075] Optionally, an annular groove may also be provided on the first sealing ring 310 and the second sealing ring 320 .
[0076] In addition, the airbag is also disposed within the third sealing ring 330 .
[0077] It should be noted that one of the second sealing rings 320 is disposed between the first sealing ring 310 and the oil outlet 640 , and there is a distance between the first sealing ring 310 and the second sealing ring 320 .
[0078] By means of the spacing between the first sealing ring 310 and the second sealing ring 320, an annular accommodating space is formed between the first sealing ring 310 and the second sealing ring 320. The accommodating space can be used to accommodate impurities that accidentally pass through the first sealing ring 310 and enter the interior of the joint ball bearing. The second sealing ring 320 performs a secondary barrier on the impurities, thereby achieving efficient sealing.
[0079] In addition, the oil outlet 640 is also provided between the first sealing ring 310 and the adjacent second sealing ring 320. The lubricating oil enters the oil outlet 640 from the oil inlet 630 through the oil guide channel 620, so that the lubricating oil is filled between the first sealing ring 310 and the adjacent second sealing ring 320, thereby ensuring the lubrication demand therein, and reducing the damage to the joint ball bearing caused by impurities that may exist in the space, thereby extending the service life of the joint ball bearing.
[0080] In some examples, the joint ball bearing further includes a slide cylinder 700, which is fixed on the inner circumferential wall of the inner ring 200, and the slide cylinder 700 is sleeved and slidably arranged on the sliding shaft 1000, so that there is a gap between the inner circumferential wall of the inner ring 200 and the sliding shaft 1000. The lubrication channel is arranged through the slide cylinder 700, and the oil outlet 640 is also arranged on the inner circumferential wall of the slide cylinder 700.
[0081] The slide cylinder 700 creates a distance between the inner ring 200 and the sliding shaft 1000. The articulated ball bearing realizes a sliding connection with the sliding shaft 1000 through the slide cylinder 700, thereby avoiding direct contact between the inner ring 200 and the sliding shaft 1000. If the slide cylinder 700 is worn after long-term use, the slide cylinder 700 can be replaced, thereby extending the service life of the articulated ball bearing and ensuring the reusability of the articulated ball bearing.
[0082] The joint ball bearing provided in the present application realizes the sealing between the inner ring 200 and the outer ring 100 by setting a sealing member 300 between the inner ring 200 and the outer ring 100. When the joint ball bearing is in a harsh environment or a high-pressure environment, the sealing ring is prone to deformation, and the diameter may become larger or smaller. By adjusting the position of the adjusting member 410, the clamping ring 420 is driven to apply a force to the first sealing ring 310 along the axial direction of the joint ball bearing. The first sealing ring 310 elastically deforms to fill the first annular groove 500 until the first sealing ring 310 is filled between the inner ring 200 and the outer ring 100, thereby restoring the sealing between the inner ring 200 and the outer ring 100, reducing the occurrence of impurities entering the interior of the joint ball bearing through the mating surface between the inner and outer rings 100, extending the service life of the joint ball bearing, ensuring the function and performance of the joint ball bearing, reducing the impact of the harsh environment on the sealing effect of the joint ball, and ensuring the safety of the joint ball bearing.
[0083] Those skilled in the art will easily conceive of other implementations of the present application after considering the specification and practicing the technical solutions disclosed herein.
[0084] This application is intended to cover any modifications, uses or adaptive changes of the present application, which follow the general principles of the present application and include common knowledge or customary technical means in the technical field that are not disclosed in this application.
[0085] It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
[0086] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.
Claims
1. A joint ball bearing, comprising an outer ring and an inner ring, wherein the outer ring is sleeved on the inner ring and the two are spherically matched, and the inner ring is slidably arranged on a sliding shaft, characterized in that: The joint ball bearing also includes: at least one sealing member disposed between the inner ring and the outer ring, the sealing member being disposed close to an end of the inner ring; At least one set of adjusting components, which acts on the sealing member and is suitable for adjusting the position of the sealing member so that the sealing member fills between the outer ring and the inner ring.
2. The spherical ball bearing according to claim 1, characterized in that: The sealing member includes a first sealing ring, and a first annular groove for accommodating the first sealing ring is provided on either the outer ring or the inner ring.
3. The joint ball bearing according to claim 2, characterized in that: The adjustment component includes an adjustment member, and a first adjustment hole is opened on either the outer ring or the inner ring. The first adjustment hole is connected to the first annular groove. The adjustment member extends into the first annular groove through the first adjustment hole to drive the first sealing ring to move, so as to fill the first sealing ring between the inner ring and the outer ring.
4. The joint ball bearing according to claim 3, characterized in that: The adjustment component also includes a clamping ring, which is arranged in the first annular groove, abuts against the first sealing ring and is fixed to the first sealing ring, and the adjustment member is connected to the clamping ring.
5. The joint ball bearing according to claim 2, characterized in that: The first sealing ring is an elastic ring.
6. The joint ball bearing according to claim 5, characterized in that: The inner ring and the outer ring are both provided with the sealing element and the adjusting assembly; The first sealing ring is also arranged between the inner ring and the sliding shaft, and the first annular groove is also provided on the inner wall of the inner ring; The adjustment component is also arranged in the first annular groove and acts on the first sealing ring, and is suitable for driving the first sealing ring to deform so as to fill between the inner ring and the sliding shaft.
7. The joint ball bearing according to any one of claims 2 to 6, characterized in that: An air bag is arranged inside the first sealing ring.
8. The joint ball bearing according to any one of claims 2 to 6, characterized in that: Also included is at least one set of lubrication components, the lubrication components comprising: An oil storage cavity is provided in any one of the inner ring and the outer ring; At least two oil guide channels, an oil inlet is provided on either the inner ring or the outer ring, and the oil guide channel is connected with the oil inlet and the oil storage cavity; an oil outlet is provided on the inner circumferential wall and the outer circumferential wall of the inner ring, and the oil guide channel is connected with the oil outlet and the oil storage cavity, and a plugging member is provided at the oil inlet; The sealing member further comprises at least two second sealing rings, wherein the second sealing rings are arranged between the inner ring and the outer ring, and the oil outlet is arranged between any two of the second sealing rings.
9. The joint ball bearing according to claim 8, characterized in that: One of the second sealing rings is disposed between the first sealing ring and the oil outlet, and there is a distance between the first sealing ring and the second sealing ring.
10. The spherical ball bearing according to claim 9, characterized in that: The oil outlet is also arranged between the first sealing ring and the second sealing ring adjacent thereto.