Micron-sized ceramic shaft sleeve without lubrication fit

Abstract

The utility model relates to the technical field of ceramic shaft sleeves, and discloses a micron-sized lubrication-free matched ceramic shaft sleeve which comprises a plurality of ceramic shaft sleeve bodies, a first positioning ring block is fixedly sleeved at one end of each ceramic shaft sleeve body, and a second positioning ring block is fixedly sleeved at one end, far away from the first positioning ring block, of each ceramic shaft sleeve body. The first positioning ring block is provided with a first mounting mechanism, the first mounting mechanism comprises a connecting block, an inner sliding block and a positioning hole, the second positioning ring block is provided with a second mounting mechanism, according to the micron-sized ceramic shaft sleeve without lubrication matching, the length of the micron-sized ceramic shaft sleeve is lengthened, the lengthening process is simple, convenient and easy to operate, tools are not needed, and the service life of the micron-sized ceramic shaft sleeve is prolonged. The practicability of the micron-sized ceramic shaft sleeve is improved, so that the micron-sized ceramic shaft sleeve can be lengthened according to different length requirements, the flexibility of the micron-sized ceramic shaft sleeve is further improved, the length of the ceramic shaft sleeve is conveniently adjusted, and the adjusting efficiency of the ceramic shaft sleeve is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ceramic shaft sleeves, in particular to a micron-level non-lubricated ceramic shaft sleeve. Background Art

[0002] Ceramic bushings are common components in mechanical equipment. They generally play a role in rotational positioning while ensuring a certain clearance fit and wear rate. Fine ceramics have ultra-high hardness and chemical corrosion resistance, and have good self-lubrication conditions, so they can be used under no-lubrication or low-lubrication conditions.

[0003] CN202321376511.4 An adjustable ceramic sleeve, which is formed by connecting multiple connecting sleeves end to end in sequence, installing a front sleeve and a rear sleeve at the front end of the first connecting sleeve and the rear end of the tail connecting sleeve respectively, and by combining multiple sleeves, the length of the sleeve can be expanded and adjusted. However, the ceramic sleeve is fixed by a flange during connection, and multiple bolts need to be tightened during the flange fixing process. The fixing process is relatively cumbersome and laborious, thereby reducing the efficiency of adjusting the length of the ceramic sleeve and reducing the practicality of the ceramic sleeve. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a micron-level non-lubricated ceramic sleeve, which solves the problem that the ceramic sleeve is fixed by a flange during connection, and multiple bolts need to be tightened during the flange fixing process, which makes the fixing process cumbersome and laborious, thereby reducing the efficiency of adjusting the length of the ceramic sleeve and reducing the practicality of the ceramic sleeve.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a micron-level non-lubricated ceramic sleeve, comprising a plurality of ceramic sleeve bodies, one end of which is fixedly sleeved with a first positioning ring block;

[0008] A second positioning ring block is fixedly sleeved on one end of the ceramic sleeve body away from the first positioning ring block;

[0009] A first mounting mechanism is provided on the first positioning ring block, and the first mounting mechanism comprises a connecting block, an inner sliding block and a positioning hole;

[0010] The second positioning ring block is provided with a second mounting mechanism, which comprises a fixing block, a mounting spring, a positioning rod, a connecting groove, a mounting groove and an inner sliding ring groove.

[0011] Preferably, the two connecting blocks are fixedly connected to the outer surface of one side of the first positioning ring block away from the second positioning ring block;

[0012] The two inner sliding blocks are fixedly connected to the outer surfaces of one side of the two connecting blocks away from the first positioning ring block;

[0013] Four positioning holes are provided on the outer surfaces of the two inner sliding blocks on a side away from the connecting block;

[0014] The two inner slides are in arc shape.

[0015] Preferably, the four mounting springs are fixedly connected to the outer surface of one side of the second positioning ring block close to the first positioning ring block;

[0016] The two fixing blocks are fixedly connected to one end of the four mounting springs away from the second positioning ring block;

[0017] The inner sliding ring groove is arranged in the second positioning ring block.

[0018] Preferably, the two mounting grooves are provided on the outer surface of the second positioning ring block on a side away from the first positioning ring block;

[0019] The two mounting grooves are connected to the interior of the inner sliding ring groove;

[0020] Four connecting grooves are arranged on the outer surface of one side of the second positioning ring block close to the first positioning ring block.

[0021] Preferably, the connecting groove is communicated with the interior of the inner sliding ring groove;

[0022] The four positioning rods are slidably connected in the four connecting grooves;

[0023] One end of the four positioning rods away from the second positioning ring block is fixedly connected to the two fixing blocks;

[0024] Four mounting spring sliding sleeves are arranged on the outer surfaces of the four positioning rods.

[0025] Preferably, one end of the four positioning rods close to the second positioning ring block extends into the positioning hole through four connecting grooves and is slidably connected with the positioning hole;

[0026] The two fixing blocks are slidably connected to the two mounting grooves;

[0027] The fixing block is adapted to the mounting slot;

[0028] The two connection blocks are slidably connected to the two mounting grooves;

[0029] The two connection blocks are matched with the two mounting grooves.

[0030] (III) Beneficial effects

[0031] Compared with the prior art, the utility model provides a micron-level non-lubricated ceramic sleeve, which has the following beneficial effects:

[0032] 1. The micron-level non-lubricated ceramic sleeve is used to install and fix the two ceramic sleeve bodies, and then the length of the micron-level ceramic sleeve is lengthened simultaneously. The lengthening process is simple and easy to operate without the use of tools, which increases the practicality of the micron-level ceramic sleeve and enables the micron-level ceramic sleeve to be lengthened according to the needs of different lengths, thereby increasing the flexibility of the micron-level ceramic sleeve and facilitating the adjustment of the ceramic sleeve length, thereby improving the efficiency of the ceramic sleeve adjustment.

[0033] 2. When disassembling the micron-level non-lubricated ceramic sleeve, you only need to pull out the two fixing blocks to move the two positioning rods out of the positioning holes, then rotate one ceramic sleeve body to make the inner slider match the mounting groove, and then pull out one of the ceramic sleeve bodies to move the inner slider out through the mounting groove to complete the disassembly. The disassembly is convenient and efficient, thereby increasing the practicality of the micron-level ceramic sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of a micron-level non-lubricated ceramic sleeve of the utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the first positioning ring block of the utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the second positioning ring block of the utility model;

[0037] Figure 4 This is a schematic diagram of the structure of the inner slider of the utility model;

[0038] Figure 5 This is a vertical cross-sectional view of the second positioning ring block of the utility model;

[0039] Figure 6 This is a schematic diagram of the positioning rod structure of the utility model.

[0040] In the figure: 1. Ceramic sleeve body; 2. First positioning ring block; 3. Second positioning ring block; 4. Fixed block; 5. Mounting spring; 6. Positioning rod; 7. Connecting groove; 8. Inner sliding ring groove; 9. Inner sliding block; 10. Positioning hole; 11. Connecting block; 12. Mounting groove. DETAILED DESCRIPTION

[0041] 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 in 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.

[0042] See also Figure 1-6 The utility model provides a new technical solution: a micron-level non-lubricated ceramic sleeve, comprising a plurality of ceramic sleeve bodies 1, one end of the ceramic sleeve body 1 is fixedly sleeved with a first positioning ring block 2;

[0043] The ceramic sleeve body 1 is fixedly sleeved with a second positioning ring block 3 at one end away from the first positioning ring block 2;

[0044] The first positioning ring block 2 is provided with a first mounting mechanism, which includes a connecting block 11, an inner slider 9 and a positioning hole 10;

[0045] The second positioning ring block 3 is provided with a second mounting mechanism, which includes a fixing block 4 , a mounting spring 5 , a positioning rod 6 , a connecting groove 7 , a mounting groove 12 and an inner sliding ring groove 8 .

[0046] Furthermore, two connecting blocks 11 are fixedly connected to the outer surface of one side of the first positioning ring block 2 away from the second positioning ring block 3;

[0047] The two inner slide blocks 9 are fixedly connected to the outer surfaces of the two connecting blocks 11 on one side away from the first positioning ring block 2;

[0048] Among them, four positioning holes 10 are opened on the outer surface of the two inner sliding blocks 9 away from the connecting block 11;

[0049] The two inner slide blocks 9 are in an arc shape.

[0050] Furthermore, four mounting springs 5 ​​are fixedly connected to the outer surface of one side of the second positioning ring block 3 close to the first positioning ring block 2;

[0051] Among them, the two fixing blocks 4 are fixedly connected to one end of the four mounting springs 5 ​​away from the second positioning ring block 3;

[0052] The inner sliding ring groove 8 is provided in the second positioning ring block 3 .

[0053] Furthermore, two mounting grooves 12 are provided on the outer surface of the second positioning ring block 3 away from the first positioning ring block 2;

[0054] Among them, the two mounting grooves 12 are connected to the inside of the inner sliding ring groove 8;

[0055] Among them, four connection grooves 7 are formed on the outer surface of one side of the second positioning ring block 3 close to the first positioning ring block 2 .

[0056] Furthermore, the connecting groove 7 is communicated with the inner sliding ring groove 8;

[0057] Among them, four positioning rods 6 are slidably connected in four connecting grooves 7;

[0058] Among them, one end of the four positioning rods 6 away from the second positioning ring block 3 is fixedly connected to the two fixing blocks 4;

[0059] The four installation springs 5 ​​are slidably sleeved on the outer surfaces of the four positioning rods 6 .

[0060] Furthermore, one end of the four positioning rods 6 close to the second positioning ring block 3 extends into the positioning hole 10 through four connecting grooves 7 and is slidably connected with the positioning hole 10;

[0061] Wherein, the two fixing blocks 4 are slidably connected with the two mounting grooves 12;

[0062] Wherein, the fixing block 4 is adapted to the mounting groove 12;

[0063] Wherein, the two connecting blocks 11 are slidably connected with the two mounting grooves 12;

[0064] The two connecting blocks 11 are matched with the two mounting grooves 12 .

[0065] During use, if the length of the ceramic sleeve needs to be lengthened, it is necessary to first pull out the two fixing blocks 4 so that the two fixing blocks 4 drive the four positioning rods 6 to move out of the inner sliding ring groove 8. During this process, the movement of the fixing blocks 4 will stretch the installation springs 5, and then the two ceramic sleeve bodies 1 are docked, and the inner sliding block 9 on one ceramic sleeve body 1 is slid into the inner sliding ring groove 8 on the other ceramic sleeve body 1 through the installation groove 12. When the second positioning ring block 3 of one ceramic sleeve body 1 is fitted with the first positioning ring block 2 of the other ceramic sleeve body 1, the outer surface of the inner sliding block 9 in the inner sliding ring groove 8 away from the first positioning ring block 2 is fitted with the inner wall of the inner sliding ring groove 8 away from the first positioning ring block 2. Then, rotate one of the ceramic sleeve bodies 1 so that the inner sliding block 9 rotates in the inner sliding ring groove 8 so that the connecting groove 7 is matched with the positioning hole 10. At this time, release the fixing blocks 4. The inner slider 9 cannot rotate in the inner sliding ring groove 8 at this time, and because one of the ceramic sleeve bodies 1 is rotated during installation, the inner slider 9 rotates in the inner sliding ring groove 8, and the inner slider 9 is misaligned with the mounting groove 12, and the inner slider 9 cannot be withdrawn from the mounting groove 12, and the two ceramic sleeve bodies 1 are installed and fixed, and the length of the micron-level ceramic sleeve is lengthened synchronously. The lengthening process is simple and easy to operate, and no tools are needed, which increases the practicality of the micron-level ceramic sleeve, so that the micron-level ceramic sleeve can be lengthened according to the needs of different lengths, thereby increasing the flexibility of the micron-level ceramic sleeve, facilitating the adjustment of the length of the ceramic sleeve, and thus improving the efficiency of the ceramic sleeve adjustment.

[0066] Furthermore, rubber pads are provided on the outer surfaces of both sides of the first positioning ring block 2 and the second positioning ring block 3 which are opposite to each other, so as to play a sealing role.

[0067] Furthermore, according to the same principle, during disassembly, it is only necessary to pull out the two fixing blocks 4 so that the two positioning rods 6 move out of the positioning holes 10, and then rotate a ceramic sleeve body 1 so that the inner sliding block 9 matches the mounting groove 12, and then pull out one of the ceramic sleeve bodies 1 so that the inner sliding block 9 moves out through the mounting groove 12, thereby completing the disassembly. The disassembly is convenient and efficient, thereby increasing the practicality of the micron-level ceramic sleeve.

[0068] Furthermore, in this solution, multiple ceramic sleeve bodies 1 can be butt-jointed and installed, thereby increasing the overall length of the ceramic sleeve.

[0069] Working principle: When the device is in use, if it is necessary to extend the length of the ceramic sleeve, it is necessary to first pull out the two fixing blocks 4 so that the two fixing blocks 4 drive the four positioning rods 6 to move out of the inner sliding ring groove 8. In this process, the movement of the fixing blocks 4 will stretch the installation spring 5, and then the two ceramic sleeve bodies 1 will be docked, and the inner sliding block 9 on one ceramic sleeve body 1 will slide into the inner sliding ring groove 8 on the other ceramic sleeve body 1 through the installation groove 12. When the second positioning ring block 3 of one ceramic sleeve body 1 is fitted with the first positioning ring block 2 of the other ceramic sleeve body 1, the outer surface of the inner sliding block 9 in the inner sliding ring groove 8 away from the first positioning ring block 2 is fitted with the inner wall of the inner sliding ring groove 8 away from the first positioning ring block 2. Then, one of the ceramic sleeve bodies 1 is rotated so that the inner sliding block 9 rotates in the inner sliding ring groove 8 so that the connecting groove 7 is matched with the positioning hole 10. At this time After that, the inner slider 9 is fixed in the inner sliding ring groove 8. At this time, the inner slider 9 cannot rotate in the inner sliding ring groove 8, and because one of the ceramic sleeve bodies 1 is rotated during installation, the inner slider 9 rotates in the inner sliding ring groove 8, and the inner slider 9 is misaligned with the installation groove 12, and the inner slider 9 cannot be withdrawn from the installation groove 12, and the two ceramic sleeve bodies 1 are installed and fixed, and the length of the micron-level ceramic sleeve is lengthened synchronously. The lengthening process is simple and easy to operate, and no tools are needed, which increases the practicality of the micron-level ceramic sleeve, so that the micron-level ceramic sleeve can be lengthened according to the needs of different lengths, thereby increasing the flexibility of the micron-level ceramic sleeve, facilitating the adjustment of the length of the ceramic sleeve, and improving the efficiency of the ceramic sleeve adjustment.

[0070] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A micron-level non-lubricated ceramic sleeve, comprising a plurality of ceramic sleeve bodies (1), characterized in that: A first positioning ring block (2) is fixedly sleeved at one end of the ceramic sleeve body (1); A second positioning ring block (3) is fixedly sleeved on one end of the ceramic sleeve body (1) away from the first positioning ring block (2); A first mounting mechanism is provided on the first positioning ring block (2), and the first mounting mechanism comprises a connecting block (11), an inner sliding block (9) and a positioning hole (10); A second mounting mechanism is arranged on the second positioning ring block (3), and the second mounting mechanism comprises a fixing block (4), a mounting spring (5), a positioning rod (6), a connecting groove (7), a mounting groove (12) and an inner sliding ring groove (8).

2. The micron-level non-lubricated ceramic sleeve according to claim 1, characterized in that: The two connecting blocks (11) are fixedly connected to the outer surface of the first positioning ring block (2) on one side away from the second positioning ring block (3); The two inner sliding blocks (9) are fixedly connected to the outer surfaces of the two connecting blocks (11) on a side away from the first positioning ring block (2); Four positioning holes (10) are formed on the outer surfaces of the two inner sliding blocks (9) on a side away from the connecting block (11); The two inner slide blocks (9) are in arc shape.

3. The micron-level non-lubricated ceramic sleeve according to claim 2, characterized in that: The four mounting springs (5) are fixedly connected to the outer surface of one side of the second positioning ring block (3) close to the first positioning ring block (2); The two fixing blocks (4) are fixedly connected to one end of the four mounting springs (5) away from the second positioning ring block (3); An inner sliding ring groove (8) is provided in the second positioning ring block (3).

4. The micron-level non-lubricated ceramic bushing according to claim 3, characterized in that: The two mounting grooves (12) are formed on the outer surface of the second positioning ring block (3) on a side away from the first positioning ring block (2); The two mounting grooves (12) are in communication with the interior of the inner sliding ring groove (8); Four connection grooves (7) are formed on the outer surface of one side of the second positioning ring block (3) close to the first positioning ring block (2).

5. The micron-level non-lubricated ceramic sleeve according to claim 4, characterized in that: The connecting groove (7) is in communication with the interior of the inner sliding ring groove (8); The four positioning rods (6) are slidably connected in the four connecting grooves (7); One end of the four positioning rods (6) away from the second positioning ring block (3) is fixedly connected to the two fixing blocks (4); Four installation springs (5) are slidably sleeved on the outer surfaces of four positioning rods (6).

6. The micron-level non-lubricated ceramic sleeve according to claim 5, characterized in that: One end of the four positioning rods (6) close to the second positioning ring block (3) extends into the positioning hole (10) through four connecting grooves (7) and is slidably connected to the positioning hole (10); The two fixing blocks (4) are slidably connected to the two mounting grooves (12); The fixing block (4) is adapted to the mounting groove (12); The two connection blocks (11) are slidably connected to the two installation grooves (12); The two connecting blocks (11) are matched with the two mounting grooves (12).

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