High-compression-resistance ceramic bearing
By setting up a buffer connection structure between the outer ring and the bottom plate of the ceramic bearing, flexible cushioning is achieved using components such as buffer cylinder, buffer column, and gasket, the problem of insufficient compressive performance of ceramic bearings is solved, and the stability and practical value are improved.
Patent Information
- Application Number
- CN202422333732.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-24
AI Technical Summary
The existing ceramic bearings have weak compressive resistance, are prone to breaking under external forces, and have poor stability.
A high-pressure-resistant ceramic bearing is designed, by setting a buffer connection structure between the outer ring and the bottom plate, flexible cushioning is achieved using components such as buffer cylinder, buffer column, and gasket to improve compressive performance.
When the outer ring is subjected to external force, the buffer connection structure provides appropriate buffering, which improves the compressive resistance of ceramic bearings. At the same time, the structure is compact and takes up less space, which has high practical value.
Smart Images
Figure CN222991955U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bearings and relates to a high-pressure-resistant ceramic bearing. Background Art
[0002] Ceramic bearings are bearings that use ceramic outer and inner rings. Due to the characteristics of their own materials, ceramic bearings have the advantages of good thermal stability, good corrosion resistance and light weight.
[0003] However, due to the limitations of its own materials, the package bearing has relatively weak compressive resistance, is easily broken under the action of external forces, and has relatively poor stability. Summary of the invention
[0004] The utility model aims to provide a high-pressure-resistant ceramic bearing with good pressure-resistant performance and compact structure in view of the above-mentioned problems existing in the prior art.
[0005] The purpose of the utility model can be achieved through the following technical solutions:
[0006] A high-pressure-resistant ceramic bearing comprises balls, a cage, an outer ring and an inner ring, wherein the outer ring and the inner ring are both made of ceramic materials and the outer ring is sleeved on the inner ring, the cage is connected between the outer ring and the inner ring, the number of the balls is multiple, and the balls are evenly distributed on the cage in the circumferential direction, and the characteristic is that the lower part of the outer ring has a block-shaped connecting block, and also includes a plate-shaped connecting plate for fixing on a bracket or a frame, the number of the connecting plates is two and the two connecting plates are symmetrically arranged on both sides of the connecting block, the connecting block has two buffer connecting structures, one end of the connecting block is connected to one of the connecting plates through one of the buffer connecting structures, and the other end of the connecting block is connected to the other connecting plate through another buffer connecting structure.
[0007] In the above-mentioned high-pressure ceramic bearing, the connecting plate has a connecting hole that penetrates through and is used to insert a fastener.
[0008] In the above-mentioned high-pressure ceramic bearing, the buffer connection structure includes a connection part 1 protruding at the end of the connecting block and a connection part 2 recessed at the inner end of the connecting plate and matching the connection part 1. The above-mentioned connection part 1 is embedded in the connection part 2 and the two are flexibly buffered and connected. The above-mentioned connection hole is located at the outer end of the connecting plate.
[0009] In the above-mentioned high-pressure ceramic bearing, the buffer connection structure also includes a buffer tube, a buffer column, gasket 1 and gasket 2. The lower part of the above-mentioned connection part has a recessed positioning hole, the upper end of the above-mentioned buffer tube is embedded in the positioning hole and gasket 1 is tightly pressed between the upper end of the buffer tube and the bottom of the positioning hole, the upper end of the above-mentioned buffer column is inserted into the buffer tube, and the above-mentioned gasket 2 is tightly pressed between the lower end of the buffer tube and the positioning column.
[0010] In the above-mentioned high-compression ceramic bearing, the buffer column includes a bottom plate in the shape of a plate and a connecting rod in the shape of a rod. The lower end of the connecting rod is fixedly connected to the bottom plate, the upper end of the connecting rod is inserted into the buffer cylinder, the second gasket is sleeved on the connecting rod, and the second gasket is tightly pressed between the lower end of the buffer cylinder and the bottom plate.
[0011] In the above-mentioned high-compression ceramic bearing, the connecting rod and the bottom plate are of an integral structure.
[0012] In the above-mentioned high-compression ceramic bearing, it further includes a third gasket. The third gasket is located inside the buffer cylinder and is tightly pressed between the buffer cylinder and the upper end of the connecting rod.
[0013] In the above-mentioned high-compression ceramic bearing, the first gasket, the second gasket and the third gasket are all made of rubber material.
[0014] In the above-mentioned high-compression ceramic bearing, the buffer cylinder and the buffer column are made of plastic material.
[0015] In the above-mentioned high-compression ceramic bearing, a guiding portion with a smooth transition is provided at the lower end of the first connecting portion.
[0016] Compared with the prior art, in this high-compression ceramic bearing, since a buffer connection structure is provided between the outer ring and the bottom plate, under the action of the buffer connection structure, not only can the outer ring and the bottom plate be connected, but also buffering can be achieved at their connection. When an external force acts on the outer ring, under the action of the buffer connection structure, the stressed outer ring can be appropriately buffered, thereby indirectly improving the compression resistance of the set bearing.
[0017] At the same time, the buffer connection structure is located between the connection block and the connection plate, does not occupy too much space, and is concealed in position. Its structure is compact and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic three-dimensional structure diagram of this high-compression ceramic bearing.
[0019] Figure 2 is a schematic cross-sectional structure diagram of this high-compression ceramic bearing.
[0020] In the figure: 1, ball; 2, cage; 3, outer ring; 3a, connection block; 3a1, first connection portion; 3a11, positioning hole; 3a12, guiding portion; 4, inner ring; 5, connection plate; 5a, connection hole; 5b, second connection portion; 6, buffer cylinder; 7, buffer column; 7a, bottom plate; 7b, connecting rod; 8, first gasket; 9, second gasket; 10, third gasket. DETAILED DESCRIPTION OF THE INVENTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly mounted on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.
[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.
[0024] like Figure 1 As shown, the high-pressure ceramic bearing includes balls 1, a retaining frame 2, an outer ring 3 and an inner ring 4. The outer ring 3 and the inner ring 4 are both made of ceramic materials and the outer ring 3 is sleeved on the inner ring 4. The retaining frame 2 is connected between the outer ring 3 and the inner ring 4. The number of the balls 1 is several, and the balls 1 are evenly distributed on the retaining frame 2 in the circumferential direction.
[0025] like Figure 1 and Figure 2 As shown, the lower part of the outer ring 3 has a block-shaped connecting block 3a, and also includes a connecting plate 5 in a plate shape and used to be fixed on a bracket or a frame. The number of the connecting plates 5 is two and the two connecting plates 5 are symmetrically arranged on both sides of the connecting block 3a. The connecting block 3a has two buffer connecting structures, one end of the connecting block 3a is connected to one of the connecting plates 5 through one of the buffer connecting structures, and the other end of the connecting block 3a is connected to the other connecting plate 5 through another buffer connecting structure.
[0026] The buffer connection structure between the connecting block 3a and the connecting plate 5 can form a buffer between the outer ring 3 and the connecting plate 5. When the outer ring 3 is subjected to external force, the buffer connection structure can achieve buffering to prevent the outer ring 3 from being subjected to rigid collision.
[0027] Specifically, since the number of the connecting plates 5 is two, after the two connecting plates 5 are connected to the corresponding frame or bracket by fasteners, a positioning portion for positioning the connecting block 5 is formed between the two connecting plates 5. Of course, the connecting block 5 is finally connected to the connecting plate 5 through a buffer connection structure.
[0028] The connecting plate 5 is provided with a connecting hole 5a that penetrates and is used for passing through a fastener.
[0029] The buffer connection structure includes a first connecting portion 3a1 protruding from the end of the connecting block 3a and a second connecting portion 5b recessed at the inner end of the connecting plate 5 and matching with the first connecting portion 3a1. The first connecting portion 3a1 is embedded at the second connecting portion 5b and the two are flexibly buffer-connected. The connecting hole 5a is located at the outer end of the connecting plate 5.
[0030] The first connecting portion 3a1 matches with the second connecting portion 5b, and such a structure can enable the connecting block 3a and the connecting plate 5 to form a pre-positioning.
[0031] The buffer connection structure further includes a buffer cylinder 6, a buffer column 7, a first gasket 8 and a second gasket 9. The lower part of the first connecting portion 3a1 has a recessed positioning hole 5a. The upper end of the buffer cylinder 6 is embedded at the positioning hole 5a and the first gasket 8 is tightly pressed between the upper end of the buffer cylinder 6 and the bottom of the positioning hole 5a. The upper end of the buffer column 7 is arranged in the buffer cylinder 6, and the second gasket 9 is tightly pressed between the lower end of the buffer cylinder 6 and the positioning column 7.
[0032] Under the action of the buffer cylinder 6 and the buffer column 7, the first gasket 8 can be tightly pressed between the first connecting portion 3a1 and the buffer cylinder 6, and the second gasket 9 can be tightly pressed between the buffer cylinder 6 and the buffer column 7. Once the outer ring 3 is subjected to an external force, the outer ring 3 can be buffered under the action of the first gasket 8 and the second gasket 9.
[0033] Of course, the arrangement of the buffer cylinder 6 and the buffer column 7 can enable the outer ring 3 to stably move up and down.
[0034] The buffer column 7 includes a bottom plate 7a in the shape of a plate and a connecting rod 7b in the shape of a rod. The lower end of the connecting rod 7b is fixedly connected to the bottom plate 7a. The upper end of the connecting rod 7b is arranged in the buffer cylinder 6. The second gasket 9 is sleeved on the connecting rod 7b and the second gasket 9 is tightly pressed between the lower end of the buffer cylinder 6 and the bottom plate 7a.
[0035] The bottom plate 7a has two functions:
[0036] First, it increases the contact area between the buffer column 7 and the connecting plate 5 and improves the connection stability;
[0037] Second, it is used to position the second gasket 9 to ensure that the second gasket 9 is tightly pressed between the buffer cylinder 6 and the bottom plate 7a.
[0038] The connecting rod 7b and the bottom plate 7a are of an integral structure.
[0039] This can appropriately improve the structural compactness of the buffer column 7.
[0040] It further includes a third gasket 10, which is located inside the buffer cylinder 6 and is tightly pressed between the buffer cylinder 6 and the upper end of the connecting rod 7b.
[0041] Under the action of the third gasket 10, the rigid contact between the buffer cylinder 6 and the buffer column 7 can be avoided, further improving its buffering performance.
[0042] The first gasket 8, the second gasket 9 and the third gasket 10 are all made of rubber material.
[0043] The rubber gaskets one, two and three can achieve stable buffering.
[0044] The buffer cylinder 6 and the buffer column 7 are made of plastic material.
[0045] At the lower end of the first connecting part 3a1, there is a guiding part 3a12 with a smooth transition.
[0046] The setting of the guiding part 3a12 enables the first connecting part 3a1 to be smoothly embedded into the second connecting part 5b. In this embodiment, the guiding part 3a12 is a chamfer structure at the end of the first connecting part 3a1. Of course, according to the actual situation, it is also feasible that the guiding part 3a12 is a fillet at the end of the first connecting part 3a1.
[0047] Due to the buffer connection structure being provided between the outer ring and the bottom plate of this high compressive ceramic bearing, not only can the outer ring and the bottom plate be connected under the action of the buffer connection structure, but also buffering can be achieved at their connection. When an external force acts on the outer ring, the stressed outer ring can be appropriately buffered under the action of the buffer connection structure, thereby indirectly improving the compressive performance of the package bearing.
[0048] Meanwhile, the buffer connection structure is located between the connecting block and the connecting plate, does not occupy too much space, and has a concealed position. Its structure is compact and has high practical value.
[0049] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0050] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as within the spirit of the present invention, appropriate changes and variations made to the above embodiments fall within the scope of protection required by the present invention.
Claims
1. A high-pressure ceramic bearing, comprising balls, a cage, an outer ring and an inner ring, wherein the outer ring and the inner ring are both made of ceramic materials and the outer ring is sleeved on the inner ring, the cage is connected between the outer ring and the inner ring, the number of the balls is several, and the balls are evenly distributed on the cage in the circumferential direction, characterized in that: The lower part of the outer ring has a block-shaped connecting block, and also includes a connecting plate in a plate shape and used to be fixed on a bracket or a frame. The number of the connecting plates is two and the two connecting plates are symmetrically arranged on both sides of the connecting block. The connecting block has two buffer connecting structures, one end of the connecting block is connected to one of the connecting plates through one of the buffer connecting structures, and the other end of the connecting block is connected to the other connecting plate through the other buffer connecting structure.
2. The high compression-resistant ceramic bearing according to claim 1, characterized in that: The connecting plate is provided with a connecting hole which penetrates through and is used for inserting a fastener.
3. The high pressure-resistant ceramic bearing according to claim 2, characterized in that: The buffer connection structure includes a connection part 1 protruding at the end of the connection block and a connection part 2 recessed at the inner end of the connection plate and matching the connection part 1. The connection part 1 is embedded in the connection part 2 and the two are flexibly buffered and connected. The connection hole is located at the outer end of the connection plate.
4. The high compression resistance ceramic bearing according to claim 3, characterized in that: The buffer connection structure also includes a buffer tube, a buffer column, a gasket 1 and a gasket 2. The lower part of the above-mentioned connection part has a recessed positioning hole. The upper end of the above-mentioned buffer tube is embedded in the positioning hole and the gasket 1 is tightly pressed between the upper end of the buffer tube and the bottom of the positioning hole. The upper end of the above-mentioned buffer column is inserted into the buffer tube, and the above-mentioned gasket 2 is tightly pressed between the lower end of the buffer tube and the positioning column.
5. The high compression resistance ceramic bearing according to claim 4, characterized in that: The buffer column includes a plate-shaped bottom plate and a rod-shaped connecting rod, the lower end of the connecting rod is fixedly connected to the bottom plate, the upper end of the connecting rod is inserted into the buffer tube, the second gasket is sleeved on the connecting rod and the second gasket is tightly pressed between the lower end of the buffer tube and the bottom plate.
6. The high compression resistance ceramic bearing according to claim 5, characterized in that: The connecting rod and the bottom plate are an integrated structure.
7. The high compression resistance ceramic bearing according to claim 6, characterized in that: It also includes a gasket three, which is located in the buffer cylinder and is tightly pressed between the buffer cylinder and the upper end of the connecting rod.
8. The high compression resistance ceramic bearing according to claim 7, characterized in that: The gasket 1, gasket 2 and gasket 3 are all made of rubber material.
9. The high compression resistance ceramic bearing according to claim 8, characterized in that: The buffer cylinder and the buffer column are made of plastic material.
10. The high compression resistance ceramic bearing according to claim 9, characterized in that: A lower end of the connecting portion is provided with a smoothly transitioned introduction portion.