Low-temperature-resistant ceramic bearing

Abstract

The utility model relates to the technical field of ceramic bearings, and discloses a low-temperature-resistant ceramic bearing which comprises an outer shaft sleeve body. The inner shaft sleeve is arranged in the outer shaft sleeve body and can support the bearing balls; the bearing balls are arranged between the outer shaft sleeve body and the inner shaft sleeve, so that the outer shaft sleeve body stably rotates along the center of the inner shaft sleeve; the annular baffle is arranged between the outer shaft sleeve body and the inner shaft sleeve and can protect the bearing balls; the dismounting device is arranged on the surface of the outer shaft sleeve body, a worker can conveniently dismount a bearing ball in the outer shaft sleeve body for overhauling, and the dismounting device comprises an outer shaft sleeve dismounting block. The ceramic bearing can stably run only when the inner shaft sleeve and the outer shaft sleeve are arranged, so that a worker cannot conveniently install a bearing ball between the inner shaft sleeve and the outer shaft sleeve body.

Description

Technical Field

[0001] The present application relates to the technical field of ceramic bearings, and in particular to a low-temperature resistant ceramic bearing. Background Art

[0002] Ceramic bearings are bearings made of ceramic materials. Compared with traditional metal bearings, they have higher hardness. Ceramic bearings are bearings with good performance in low temperature environments and are often used in applications in extremely low temperatures or extreme environments. Ceramic materials usually have excellent corrosion resistance, so they perform well in low temperature environments. Ceramic bearings are widely used in polar scientific research, aerospace, nuclear engineering and other fields, and are of great significance for occasions where high-performance bearings are required in extremely low temperature environments.

[0003] After the ceramic bearings are installed on the equipment, the bearing balls carry the outer sleeve body and the inner sleeve to rotate. After long-term use, the bearing balls will show varying degrees of wear. To ensure the stable use of the ceramic bearings, staff are required to inspect and replace the bearing balls in the ceramic bearings. Due to the stable operation of the ceramic bearings, the bearing balls need to fit tightly against the outer sleeve body and the inner sleeve to enable the ceramic bearings to operate stably, which makes it inconvenient for staff to install the bearing balls between the inner sleeve and the outer sleeve body. There is room for improvement. Summary of the invention

[0004] In order to improve the convenience of bearing ball installation, the present application provides a low-temperature resistant ceramic bearing.

[0005] The present application provides a low temperature resistant ceramic bearing, which adopts the following technical solution:

[0006] A low temperature resistant ceramic bearing comprises an outer sleeve body;

[0007] An inner sleeve is arranged inside the outer sleeve body;

[0008] The bearing ball is arranged between the outer sleeve body and the inner sleeve, and the outer sleeve body rotates along the center of the inner sleeve;

[0009] An annular baffle is arranged between the outer sleeve body and the inner sleeve to protect the bearing balls;

[0010] The disassembly device comprises an outer shaft sleeve disassembly block, and the outer shaft sleeve disassembly block is detachably connected to the outer shaft sleeve body.

[0011] By adopting the above technical solution, when it is necessary to remove the bearing balls between the outer sleeve body and the inner sleeve for maintenance, the staff will remove the outer sleeve blocks to create a gap on the outer sleeve body. The staff can take out the bearing balls from the gap to facilitate maintenance.

[0012] Optionally, a circular groove is provided on the outer sleeve disassembly block, a screw rod is detachably mounted on the outer sleeve disassembly block, a circular hole is provided on the outer sleeve body, the circular groove is connected to the circular hole, and the screw rod is threaded into the circular hole and the circular groove.

[0013] By adopting the above technical solution, the round hole is connected with the screw thread. When the ceramic bearing that has been used for a long time needs to be repaired, the staff rotates the screw in the round groove and takes it out of the round hole. The screw no longer supports and fixes the outer sleeve block, making it easy to remove the outer sleeve block.

[0014] Optionally, a cross groove is provided on the screw rod, a round rod is detachably mounted on one end of the screw rod, a cross block is fixedly connected to one end of the round rod, the size of the cross block matches the size of the cross groove, and the size of the round rod matches the size of the round hole; a handle is fixedly connected to the other end of the round rod.

[0015] By adopting the above technical solution, the round rod can be rotated by the handle, which makes it convenient for the staff to control the rotation of the round rod.

[0016] Optionally, an insert block is fixedly connected to the outer sleeve disassembly block, a slot is provided on the outer sleeve body, the size of the slot is matched with the size of the insert block; and a guide block is fixedly connected to the insert block.

[0017] By adopting the above technical solution, an insert block is fixedly connected to the outer sleeve disassembly block, and a slot is opened on the outer sleeve body. The size of the slot is matched with the size of the insert block. After the insert block is inserted into the slot, the circular groove is aligned with the circular hole, which makes it convenient for the staff to insert the screw through the circular hole into the circular groove.

[0018] Optionally, a tapered hole is provided on the outer sleeve disassembly block, a tapered rubber block is detachably mounted on the outer sleeve disassembly block, and the tapered hole has a size corresponding to the tapered rubber block; a sealing gasket is fixedly connected to the outer sleeve disassembly block.

[0019] To summarize, the present application includes at least one of the following beneficial technical effects: by setting up a disassembly device, when it is necessary to remove the bearing balls between the outer sleeve body and the inner sleeve for inspection and maintenance, the staff can rotate the screw out of the circular groove to remove the outer sleeve block, so that a notch appears on the outer sleeve body, and the staff can take out the bearing balls from the notch, making it convenient for the staff to inspect and maintain the bearing balls. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an assembly schematic diagram of the overall structure of the utility model.

[0021] Figure 2 This utility model Figure 1 Schematic diagram of the local structure.

[0022] Figure 3 It is a structural schematic diagram of the utility model in which the middle and outer shaft sleeves are disassembled.

[0023] Figure 4 This utility model Figure 3 Schematic diagram of the local structure.

[0024] Figure 5 It is a structural schematic diagram of a round rod of the utility model.

[0025] Figure numerals: 1. outer sleeve body; 2. inner sleeve; 3. annular baffle; 4. bearing ball; 5. disassembly device; 51. outer sleeve disassembly block; 52. screw; 53. round hole; 54. round groove; 6. insert block; 7. slot; 8. guide block; 9. tapered hole; 10. tapered rubber block; 11. round rod; 12. cross groove; 13. cross block; 14. handle; 15. sealing gasket. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the attached Figure 1-5 Shown in.

[0027] In the description of this specification, the description with reference to the terms "certain embodiments", "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0028] The embodiment of the present application discloses a low-temperature resistant ceramic bearing, comprising an outer sleeve body 1, an inner sleeve 2, an annular baffle 3, bearing balls 4 and a disassembly device 5. The inner sleeve 2 is arranged inside the outer sleeve body 1, and a circular arc-shaped mounting groove is provided on one side of the inner sleeve 2. A plurality of bearing balls 4 are installed in the mounting groove and are located between the outer sleeve body 1 and the inner sleeve 2. The outer sleeve body 1 is stably rotated along the center of the inner sleeve 2 by the rolling of the bearing balls 4 in the mounting groove. In order to protect the bearing balls 4, an annular baffle 3 is provided between the outer sleeve body 1 and the inner sleeve 2, and one side of the annular baffle 3 blocks the bearing balls.

[0029] Reference Figure 2 and Figure 3The disassembly device 5 includes an outer sleeve disassembly block 51. The outer sleeve body 1 is formed with an installation opening for installing the outer sleeve disassembly block 51. The outer sleeve disassembly block 51 can be detachably installed on the installation opening. In order to improve the tightness and stability of the installation of the outer sleeve, a circular groove 54 is formed through the outer sleeve disassembly block 51. A screw 52 can be detachably installed on the outer sleeve disassembly block 51. A circular hole 53 is formed on the surface of the outer sleeve body 1.

[0030] The circular hole 53 is connected to the circular groove 54, and the size of the screw 52 is adapted to the size of the circular groove 54 and the circular hole 53, so that the screw thread can penetrate into the circular groove 54 and the circular hole 53 to achieve the installation and fixation of the outer sleeve block 51. In actual use, in order to improve the surface smoothness of the outer sleeve body 1, the transition area where the screw 52 is connected to the outer sleeve body 1 can be treated with a curved surface.

[0031] When it is necessary to inspect and repair the ceramic bearing that has been used for a long time, the staff rotates the screw 52 in the circular groove 54, and after taking it out from the circular hole 53, the outer sleeve disassembly block 51 is separated from the support and fixation of the screw 52. The staff can then remove the outer sleeve disassembly block 51 to expose the installation port, so that the staff can take out the bearing ball 4 from the installation port for inspection and replacement. After the bearing ball 4 is installed back between the inner sleeve 2 and the outer sleeve body 1, the outer sleeve disassembly block 51 is covered on the installation port of the outer sleeve body 1, and the screw 52 is inserted into the circular groove 54 through the circular hole 53. The outer sleeve disassembly block 51 can be fixed on the installation port of the outer sleeve body 1, and the ceramic bearing can be reinstalled on the equipment. The annular baffle 3 can protect the ball and reduce damage to the ball.

[0032] In order to facilitate the rotation of the screw rod, a cross groove 12 is provided on the surface of the screw rod 52, a round rod 11 is detachably mounted on one end of the screw rod 52, a cross block 13 is fixedly connected to one end of the round rod 11, the size of the cross block 13 matches the size of the cross groove 12, the size of the round rod 11 matches the size of the round hole 53, and a handle 14 is fixedly connected to the other end of the round rod 11, and the round rod 11 is rotated by the handle 14, which is convenient for the staff to control the rotation of the round rod 11. It should be pointed out that the handle 14 is integrally formed with the round rod 11, and the round rod 11 is detachably fixedly connected to the screw rod 52, and the cross block 13 on the round rod 11 is inserted into the cross groove 12, so that after one screw rod 52 is inserted into the round groove 54, it can be used again to install other screw rods 52.

[0033] The outer sleeve disassembly block 51 is provided with an insert block 6, which can be integrally formed with the outer sleeve disassembly block 51 or detachably connected. The insert block 6 is located at the connection surface between the outer sleeve disassembly block 51 and the outer sleeve body 1. The surface of the outer sleeve body 1 is provided with a slot 7, the size of which matches the size of the insert block 6. After the insert block 6 is inserted into the slot 7, the circular groove 54 is aligned and connected with the circular hole 53, which facilitates the staff to insert the screw 52 through the circular hole 53 into the circular groove 54.

[0034] The surface of the plug block 6 is fixedly connected with a guide block 8, which facilitates the insertion of the plug block 6 into the slot 7. The surface of the outer sleeve disassembly block 51 is provided with a tapered hole 9. The surface of the outer sleeve disassembly block 51 is detachably installed with a tapered rubber block 10. The size of the tapered hole 9 is consistent with the tapered rubber block 10. When it is necessary to add lubricant to the bearing ball 4 for maintenance, the tapered rubber block 10 is taken out from the tapered hole 9, and lubricant is added to the inner part of the outer sleeve body 1 and the inner sleeve 2 through the tapered hole 9, and then the tapered rubber block 10 is inserted into the tapered hole 9. The surface of the outer sleeve disassembly block 51 is fixedly connected with a sealing gasket 15. After the outer sleeve disassembly block 51 is installed on the outer sleeve body 1, the sealing gasket 15 makes the connection between the outer sleeve disassembly block 51 and the outer sleeve body 1 more fitting. Among them, the sealing gasket 15 can be silicone rubber, nitrile rubber or polypropylene rubber.

[0035] The working principle of the embodiment of the utility model is: when it is necessary to inspect and repair the ceramic bearing that has been used for a long time, by setting the outer sleeve disassembly block 51, the screw 52, ​​the round hole 53, and the round groove 54, when it is necessary to remove the bearing ball 4 between the outer sleeve body 1 and the inner sleeve 2 for inspection and repair, the staff rotates the screw 52 out of the round groove 54, and the outer sleeve disassembly block 51 is removed from the outer sleeve body 1 through the guidance of the guide block 8, so that the surface of the outer sleeve body 1 exposes the installation port, and the staff can take out the bearing ball 4 from the notch, which is convenient for the staff to inspect and repair the bearing ball 4.

[0036] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A low temperature resistant ceramic bearing, characterized in that: include: Outer sleeve body (1); An inner sleeve (2) is arranged inside the outer sleeve body (1); The bearing ball (4) is arranged between the outer sleeve body (1) and the inner sleeve (2), and the outer sleeve body (1) rotates along the center of the inner sleeve (2); An annular baffle (3) is arranged between the outer sleeve body (1) and the inner sleeve (2) and is used to protect the bearing balls (4); The disassembly device (5) comprises an outer shaft sleeve disassembly block (51), wherein the outer shaft sleeve disassembly block (51) is detachably connected to the outer shaft sleeve body (1).

2. A low temperature resistant ceramic bearing according to claim 1, characterized in that: The outer sleeve disassembly block (51) is provided with a circular groove (54), and a screw rod (52) is detachably mounted on the outer sleeve disassembly block (51). A circular hole (53) is provided on the outer sleeve body (1), the circular groove (54) is connected to the circular hole (53), and the screw rod (52) is screwed into the circular hole (53) and the circular groove (54).

3. A low temperature resistant ceramic bearing according to claim 2, characterized in that: The screw rod (52) is provided with a cross groove (12); one end of the screw rod (52) is detachably mounted with a round rod (11); one end of the round rod (11) is fixedly connected with a cross block (13); the size of the cross block (13) matches the size of the cross groove (12); and the size of the round rod (11) matches the size of the round hole (53).

4. A low temperature resistant ceramic bearing according to claim 2, characterized in that: The outer sleeve disassembly block (51) is fixedly connected with an insert block (6), and the outer sleeve body (1) is provided with a slot (7), and the slot (7) is embedded and matched with the insert block (6).

5. A low temperature resistant ceramic bearing according to claim 4, characterized in that: A guide block (8) is fixedly connected to the insert block (6).

6. The low temperature resistant ceramic bearing according to claim 3, characterized in that: One end of the round rod (11) is fixedly connected with a handle.

7. The low temperature resistant ceramic bearing according to claim 2, characterized in that: The outer sleeve disassembly block (51) is provided with a tapered hole (9), and a tapered rubber block (10) is detachably mounted on the outer sleeve disassembly block (51), and the size of the tapered hole (9) is the same as that of the tapered rubber block (10).

8. The low temperature resistant ceramic bearing according to claim 2, characterized in that: A sealing gasket (15) is fixedly connected to the outer shaft sleeve disassembled block (51).

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