High-temperature-resistant ceramic bearing

Abstract

The utility model discloses a high-temperature-resistant ceramic bearing, which belongs to the technical field of ceramic bearings and comprises an outer ring, an inner ring is arranged in the middle of the inner side of the outer ring, and protective covers are arranged on two opposite surfaces of the outer ring and the inner ring and close to two sides. A group of balls are movably connected to the centers of the opposite surfaces of the outer ring and the inner ring, the outer sides of the balls are symmetrically sleeved with a first retainer and a second retainer, the interior of the first retainer is in threaded connection with a threaded column, and a synchronizing mechanism is arranged on the outer side of the second retainer. The two retainers are installed and fixed, the stability of the retainers is improved, the problem that the retainers loosen and fall off is solved, the synchronous assembly is arranged, meshing transmission is matched with thread transmission, the multiple clamping parts are synchronously adjusted, and the convenience of installation and disassembly of the retainers is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic bearings, and more specifically to a high-temperature resistant ceramic bearing. Background Art

[0002] As an important basic mechanical component, ceramic bearings have excellent properties that metal bearings cannot match, such as high temperature resistance, cold resistance, wear resistance, corrosion resistance, anti-magnetic and electrical insulation, oil-free self-lubrication, high speed, etc. They can be used in extremely harsh environments and special working conditions. They can be widely used in aviation, aerospace, navigation, petroleum, chemical industry, automobile, electronic equipment, metallurgy, electricity, textile, pumps, medical equipment, scientific research and national defense and military fields. They are high-tech products of new material applications.

[0003] Based on the above, the inventors found that: the two symmetrically arranged retaining frames of the existing ceramic bearings limit and fix the balls, and the retaining frames are fixedly connected by bolts and nuts. The structure is simple, but the working environment of the ceramic bearings is usually harsh. After a long time, the bolts are prone to loosening, causing the retaining frames to fall off. Therefore, in view of this, the existing structure is studied and improved to provide a high-temperature resistant ceramic bearing, in order to achieve a more practical purpose. Utility Model Content

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the utility model is to provide a ceramic bearing that can withstand high temperatures. In this scheme, a plurality of clamping components are arranged to cooperate to form a clamping structure to perform installation and fixing of two retaining frames, thereby improving the stability of the retaining frames and reducing the problem of retaining frames loosening and falling off. In addition, a synchronization component is arranged to synchronize the adjustment of a plurality of clamping components through meshing transmission and threaded transmission, thereby improving the convenience of installation and removal of the retaining frames.

[0006] 2. Technical solution

[0007] To solve the above problems, the utility model adopts the following technical solutions.

[0008] A high temperature resistant ceramic bearing, comprising an outer ring, an inner ring is centrally arranged on the inner side of the outer ring, protective covers are arranged on both sides of the opposite surfaces of the outer ring and the inner ring, and a group of balls are movably connected in the center of the opposite surfaces of the outer ring and the inner ring, a first retainer and a second retainer are symmetrically sleeved on the outer side of the balls, a threaded column is connected to the internal thread of the first retainer, a synchronization mechanism is arranged on the outer side of the second retainer, an adjustment column is fixedly connected to the inner end of the threaded column, a positioning groove is centrally arranged on the outer side of the adjustment column, and a group of positioning rods are clamped and arranged on the outer side of the positioning groove;

[0009] The synchronization mechanism comprises a driving gear disc, the outer side of the driving gear disc is meshedly connected with a group of driven gear discs, the inner side of the driven gear disc is penetrated by a threaded rod, and one end of the threaded rod is fixedly connected to a limiting block.

[0010] Furthermore, the positioning rod is located inside the second retaining frame, and the positioning rod is slidably connected to the second retaining frame.

[0011] Furthermore, one end of the threaded column away from the adjusting column is located outside the first retaining frame, and the adjusting column passes through the inner side of the first retaining frame and is clamped with the second retaining frame.

[0012] Furthermore, one end of the inner side of the positioning rod is arranged in an inclined shape close to both sides, and one end of the outer side of the positioning rod is arranged in an inclined shape close to one side.

[0013] Furthermore, the driving gear disc and the driven gear disc are both located on the outside of the second retaining frame, and the inner side of the driving gear disc and the inner side of the driven gear disc are both movably connected to the second retaining frame.

[0014] Furthermore, the threaded rod is threadedly connected to the second retaining frame, and an end of the threaded rod away from the limiting block is matched with an end of the positioning rod closer to the outside.

[0015] Furthermore, the limit block is located inside the driven gear disc, and the limit block is slidably connected to the driven gear disc.

[0016] 3. Beneficial effects

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] (1) In this scheme, the first retaining frame and the second retaining frame are symmetrically sleeved on the outside of the ball, and the threaded column is rotated to allow the adjustment column to enter the inside of the second retaining frame. Then, the threaded rod moves due to the rotation, squeezing the outer end of the positioning rod, so that the inner end of the positioning rod is engaged with the positioning groove, so that the adjustment column is fixed in the inside of the second retaining frame, and the first retaining frame and the second retaining frame are fixed. Compared with the prior art, multiple clamping components are provided to cooperate to form a clamping structure to perform the installation and fixing work of the two retaining frames, thereby improving the stability of the retaining frame and reducing the problem of the retaining frame loosening and falling off.

[0019] (2) By setting a synchronization mechanism, the active gear disc is rotated, and under the meshing action, multiple driven gear discs are rotated synchronously. The rotation of the driven gear disc cooperates with the limit block to rotate the threaded rod inside the second retaining frame, so that the threaded rod moves due to the rotation. Compared with the prior art, a synchronization component is set, and multiple clamping parts are adjusted synchronously through meshing transmission and threaded transmission, thereby improving the convenience of installing and removing the retaining frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a cross-sectional view of the overall structure of the utility model;

[0022] Figure 3 This is a disassembled diagram of the overall structure of the utility model;

[0023] Figure 4 A partial cross-sectional view of the first retainer and the second retainer of the utility model

[0024] Figure 5 It is a structural schematic diagram of the adjustment column of the utility model;

[0025] Figure 6 It is a structural schematic diagram of the synchronization mechanism of the utility model.

[0026] Explanation of the numbers in the figure: 1. Outer ring; 2. Inner ring; 3. Protective cover; 4. Ball; 5. First retaining frame; 6. Second retaining frame; 7. Threaded column; 8. Synchronous mechanism; 9. Adjusting column; 10. Positioning groove; 11. Positioning rod; 12. Driving gear disc; 13. Driven gear disc; 14. Threaded rod; 15. Limit block. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0028] Example:

[0029] See also Figure 1-6 A high temperature resistant ceramic bearing comprises an outer ring 1, an inner ring 2 is centrally arranged on the inner side of the outer ring 1, protective covers 3 are arranged on both sides of the opposite surfaces of the outer ring 1 and the inner ring 2, and a group of balls 4 are movably connected in the center of the opposite surfaces of the outer ring 1 and the inner ring 2, a first retainer 5 and a second retainer 6 are symmetrically sleeved on the outer side of the balls 4, a threaded column 7 is connected to the inner thread of the first retainer 5, a synchronization mechanism 8 is arranged on the outer side of the second retainer 6, an adjusting column 9 is fixedly connected to the inner end of the threaded column 7, a positioning groove 10 is centrally arranged on the outer side of the adjusting column 9, and a group of positioning rods 11 are clamped and arranged on the outer side of the positioning groove 10;

[0030] The synchronization mechanism 8 includes a driving gear disc 12, the outer side of the driving gear disc 12 is meshedly connected with a group of driven gear discs 13, the inner side of the driven gear disc 13 is penetrated by a threaded rod 14, one end of the threaded rod 14 is fixedly connected to a limiting block 15, and a synchronization mechanism 8 is provided in order to adjust multiple positioning rods 11 at the same time.

[0031] See also Figure 5 , the positioning rod 11 is located inside the second retaining frame 6, and the positioning rod 11 is slidably connected to the second retaining frame 6. The positioning rod 11 is forced to move inward, and the inner end of the positioning rod 11 is engaged with the positioning groove 10, so that the adjustment column 9 is fixed inside the second retaining frame 6, completing the fixing work of the first retaining frame 5 and the second retaining frame 6. On the contrary, the positioning rod 11 loses pressure, and the threaded column 7 is rotated to move the adjustment column 9 out of the second retaining frame 6. During the movement of the adjustment column 9, the positioning rod 11 is forced to move outward, and the removal of the two retaining frames is completed.

[0032] See also Figure 4 The end of the threaded column 7 away from the adjusting column 9 is located on the outside of the first retaining frame 5, and the adjusting column 9 passes through the inner side of the first retaining frame 5 and is connected with the second retaining frame 6. First, rotate the threaded column 7 to allow the adjusting column 9 to enter the inside of the second retaining frame 6.

[0033] See also Figure 5 One end of the inner side of the positioning rod 11 is inclined on both sides, and one end of the outer side of the positioning rod 11 is inclined on one side. When the positioning rod 11 is subjected to force, it can slide inside the second retaining frame 6.

[0034] See also Figure 6 The driving gear disc 12 and the driven gear disc 13 are both located on the outside of the second retaining frame 6, and the inner sides of the driving gear disc 12 and the driven gear disc 13 are movably connected to the second retaining frame 6. By rotating the driving gear disc 12, the multiple driven gear discs 13 rotate synchronously under the meshing action.

[0035] See also Figure 6 The threaded rod 14 is threadedly connected to the second retaining frame 6, and the end of the threaded rod 14 away from the limit block 15 is adapted to the outer end of the positioning rod 11. The threaded rod 14 moves due to rotation, thereby squeezing the outer end of the positioning rod 11, so that the inner end of the positioning rod 11 is engaged with the positioning groove 10.

[0036] See also Figure 6 The limit block 15 is located inside the driven gear disc 13 , and the limit block 15 is slidably connected to the driven gear disc 13 . The rotation of the driven gear disc 13 cooperates with the limit block 15 to make the threaded rod 14 rotate inside the second retaining frame 6 .

[0037] When in use: firstly, arrange a plurality of balls 4 evenly between the outer ring 1 and the inner ring 2, then symmetrically sleeve the two cages on the outside of the plurality of balls 4, firstly rotate the threaded column 7 to make the adjustment column 9 enter the inside of the second cage 6, rotate the active gear plate 12, and under the meshing action, make the plurality of driven gear plates 13 rotate synchronously, the rotation of the driven gear plate 13 cooperates with the limit block 15 to make the threaded rod 14 rotate inside the second cage 6, and the threaded rod 14 moves due to the rotation, thereby squeezing the outer end of the positioning rod 11, so that the inner end of the positioning rod 11 is locked with the positioning groove 10. Then, the adjusting column 9 is fixed inside the second retaining frame 6 to complete the fixing work of the first retaining frame 5 and the second retaining frame 6. Finally, the two protective covers 3 are respectively engaged with the two sides of the outer ring 1 to complete the installation of the bearing. Otherwise, the protective cover 3 is removed, and then the active gear plate 12 is rotated in the reverse direction to reset the threaded rod 14. Then, the positioning rod 11 loses pressure, and the threaded column 7 is rotated in the reverse direction to move the adjusting column 9 out of the second retaining frame 6. During the movement of the adjusting column 9, the positioning rod 11 is forced to move outward, so that the two retaining frames can be separated and the bearing can be removed.

[0038] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0039] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A high temperature resistant ceramic bearing, comprising an outer ring (1), an inner ring (2) is centrally arranged on the inner side of the outer ring (1), protective covers (3) are clamped on both sides of the opposing surfaces of the outer ring (1) and the inner ring (2), and a group of balls (4) are movably connected in the center of the opposing surfaces of the outer ring (1) and the inner ring (2), and a first retainer (5) and a second retainer (6) are symmetrically sleeved on the outer side of the balls (4), characterized in that: The first retaining frame (5) is internally threadedly connected with a threaded column (7), the outer side of the second retaining frame (6) is provided with a synchronization mechanism (8), the inner end of the threaded column (7) is fixedly connected with an adjustment column (9), the outer side of the adjustment column (9) is provided with a positioning groove (10) in the center, and the outer side of the positioning groove (10) is provided with a group of positioning rods (11) in a clamping manner; The synchronization mechanism (8) comprises a driving toothed disc (12), the outer side of the driving toothed disc (12) is meshedly connected with a group of driven toothed discs (13), the inner side of the driven toothed disc (13) is penetrated by a threaded rod (14), and one end of the threaded rod (14) is fixedly connected to a limit block (15).

2. A high temperature resistant ceramic bearing according to claim 1, characterized in that: The positioning rod (11) is located inside the second retaining frame (6), and the positioning rod (11) is slidably connected to the second retaining frame (6).

3. The high temperature resistant ceramic bearing according to claim 1, characterized in that: One end of the threaded column (7) away from the adjustment column (9) is located outside the first retaining frame (5), and the adjustment column (9) passes through the inside of the first retaining frame (5) and is clamped with the second retaining frame (6).

4. The high temperature resistant ceramic bearing according to claim 1, characterized in that: One end of the inner side of the positioning rod (11) is arranged in an inclined shape close to both sides, and one end of the outer side of the positioning rod (11) is arranged in an inclined shape close to one side.

5. The high temperature resistant ceramic bearing according to claim 1, characterized in that: The driving gear disc (12) and the driven gear disc (13) are both located outside the second retaining frame (6), and the inner side of the driving gear disc (12) and the inner side of the driven gear disc (13) are both movably connected to the second retaining frame (6).

6. The high temperature resistant ceramic bearing according to claim 1, characterized in that: The threaded rod (14) is threadably connected to the second retaining frame (6), and one end of the threaded rod (14) away from the limiting block (15) is matched with the end of the positioning rod (11) on the outside.

7. The high temperature resistant ceramic bearing according to claim 1, characterized in that: The limit block (15) is located inside the driven gear disc (13), and the limit block (15) is slidably connected to the driven gear disc (13).

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