Internal thread bolt type roller bearing

Abstract

The utility model relates to an internal thread bolt type roller bearing which comprises an outer ring and a bolt shaft, a rolling body is arranged between the bolt shaft and the outer ring, a threaded hole is formed in the bolt shaft, the inner wall of the threaded hole is in threaded connection with a locking bolt, and a locking gasket is arranged between the locking bolt and the bolt shaft. Relates to the technical field of roller bearings. The mounting structure has the use effects that the mounting structure can be smoothly mounted in a small space, and the mounting length can be adjusted within a certain range.

Description

Technical Field

[0001] The present application relates to the technical field of roller bearings, and in particular to an internal thread bolt type roller bearing. Background Art

[0002] The bolt-type roller bearing comprises a bearing outer ring and a bolt shaft with an inner raceway, a plurality of roller needles are arranged in the circumferential direction between the outer ring and the bolt shaft, a part of the bolt shaft is a threaded section and a part is a smooth rod section, and the threaded section is provided with threads on the outer side surface of the bolt shaft. When in use, the user needs to install the component to be installed on the smooth rod section of the bolt shaft, and then screw the locking nut into the threaded section so that the locking nut locks the component to be installed. However, this installation method has requirements on the length of the component to be installed. The length of the component to be installed cannot exceed the length of the smooth rod section plus the length of the smooth rod section and the threaded section. Otherwise, the nut cannot be completely locked and the bearing cannot be used normally. Utility Model Content

[0003] In order to enable smooth installation in a relatively small space and to adjust the installation length within a certain range, the present application provides an internally threaded bolt type roller bearing.

[0004] The present application provides an internal thread bolt type roller bearing, which adopts the following technical solution:

[0005] An internal thread bolt type roller bearing comprises an outer ring and a bolt shaft, a rolling body is arranged between the bolt shaft and the outer ring, a threaded hole is opened inside the bolt shaft, a locking bolt is threadedly connected to the inner wall of the threaded hole, and a locking gasket is arranged between the locking bolt and the bolt shaft.

[0006] By adopting the above technical solution, when installation is required, the user presses the bolt shaft into the mounting hole of the component to be installed, and then rotates the locking bolt so that the locking bolt is screwed into the threaded hole for connection. In this process, the user can put a locking gasket on the locking bolt for use according to actual conditions, so that the user can freely adjust the thickness of the end of the locking bolt through the locking gasket. Compared with the original external thread connection, the internal thread connection can ensure the threaded connection position of the locking bolt, so that components to be installed in a small space can also be installed and used.

[0007] Preferably, an oil filling hole is opened on the bolt shaft, and the oil filling hole is connected with the threaded hole.

[0008] By adopting the above technical solution and setting the oil filling hole, the user can fill the bearing with oil through the threaded hole and the oil filling hole.

[0009] Preferably, an axial diameter hole is opened on the bolt shaft, and the axial diameter hole is connected to the oil filling hole.

[0010] By adopting the above technical solution and setting the shaft diameter hole, the user can also fill oil into the oil filling hole through the shaft diameter hole, which is convenient for the user to fill oil into the bearing.

[0011] Preferably, the rolling element is a needle roller.

[0012] Preferably, a plurality of needle rollers are provided, and the needle rollers are arranged along the circumference of the bolt shaft, and the plurality of needle rollers are fully loaded on the bolt shaft.

[0013] By adopting the above technical solution, the outer ring is evenly supported by a plurality of evenly arranged needle rollers, which is convenient for use.

[0014] Preferably, a first sealing ring is provided between the outer ring and the bolt shaft.

[0015] By adopting the above technical solution and setting the first sealing ring, the connection between the outer ring and the bolt shaft is sealed, which effectively reduces the interference of the external environment on the inside of the bearing and ensures the service life of the bearing.

[0016] Preferably, a retaining ring is installed on the bolt shaft, and the retaining ring is located between the bolt shaft and the outer ring.

[0017] By adopting the above technical solution and providing the retaining ring, the retaining ring also has a sealing effect, thereby reducing the interference of the external environment on the inside of the bearing.

[0018] Preferably, a second sealing ring is provided between the retaining ring and the outer ring.

[0019] By adopting the above technical solution and providing the second sealing ring, the second sealing ring is used in cooperation with the retaining ring to seal the end of the bearing together, thereby ensuring the sealing effect.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. Through the arrangement of the outer ring, bolt shaft, threaded hole, locking gasket and locking bolt, the original externally threaded bolt shaft is changed to an internally threaded bolt shaft, and connected and sealed by the locking bolt. Compared with the original bearing, the internally threaded bolt shaft can make the whole more compact, and on the other hand, the internally threaded bolt shaft can ensure the threaded connection position, and the end thickness can be freely adjusted by the locking gasket, which can be used in a variety of situations, so that the components to be installed in a small space can also be installed and used;

[0022] 2. The threaded holes, oil injection holes and shaft diameter holes are arranged to facilitate users to inject oil into the bearings. On the other hand, the use of materials is reduced during production and processing, which effectively reduces costs.

[0023] 3. Through the arrangement of the first sealing ring, the retaining ring and the second sealing ring, the inside and outside of the bearing are effectively isolated, reducing the impact of the external environment on the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional schematic diagram mainly showing the overall structure in the embodiment of the present application;

[0025] Figure 2 It is a cross-sectional schematic diagram mainly showing the installation of parts with a longer length in the embodiment of the present application.

[0026] Figure numerals: 1, outer ring; 2, bolt shaft; 3, threaded hole; 4, locking bolt; 5, locking gasket; 6, oil filling hole; 7, shaft diameter hole; 8, needle roller; 9, first sealing ring; 10, retaining ring; 20, second sealing ring. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1 -Attached Figure 2 This application is described in further detail.

[0028] The embodiment of the present application discloses an internal thread bolt type roller bearing.

[0029] like Figure 1 As shown, an internal thread bolt type roller bearing includes an outer ring 1 and a bolt shaft 2, a rolling body is arranged between the bolt shaft 2 and the outer ring 1, and the rolling body is a needle roller 8. There are multiple needle rollers 8, and the multiple needle rollers 8 are fully loaded on the bolt shaft 2. The needle rollers 8 are arranged circumferentially on the bolt shaft 2. A single needle roller 8 can roll circumferentially on the bolt shaft 2. One end of the needle roller 8 is attached to the bolt shaft 2, and the other end is attached to the outer ring 1, so that the friction between the bolt shaft 2 and the outer ring 1 is the rolling friction through the needle rollers 8.

[0030] like Figure 1 As shown, a first sealing ring 9 is arranged between the outer ring 1 and the bolt shaft 2, and the first sealing ring 9 is clamped and installed between the outer ring 1 and the bolt shaft 2, which can effectively separate the needle roller 8 between the outer ring 1 and the bolt shaft 2 from the external environment. A retaining ring 10 and a second sealing ring 20 are also arranged between the outer ring 1 and the bolt shaft 2. The first sealing ring 9 and the second sealing ring 20 are respectively located at the two ends of the outer ring 1, so as to perform double-end sealing on the needle roller 8, wherein the retaining ring 10 is clamped and fixed on the bolt shaft 2, and the second sealing ring 20 is clamped and installed between the retaining ring 10 and the outer ring 1. The retaining ring 10 and the second sealing ring 20 work together to separate the needle roller 8 from the external environment, thereby realizing the sealing of the bearing.

[0031] like Figure 1As shown, a threaded hole 3 is provided inside the bolt shaft 2, and an oil filling hole 6 is also provided inside the bolt shaft 2. The oil filling hole 6 is connected with the threaded hole 3, and the end of the oil filling hole 6 away from the threaded hole 3 is arranged toward the needle roller 8. An axial diameter hole 7 is also provided on the bolt shaft 2, and the axial diameter hole 7 is also connected with the oil filling hole 6, and the axial diameter hole 7 is connected with the threaded hole 3, so that a through hole is formed inside the bolt shaft 2. When the user needs to fill the bearing with oil, the user can fill the oil filling hole 6 with oil through the axial diameter hole 7 or the threaded hole 3.

[0032] like Figure 1 As shown, a thread is formed on the inner wall of the threaded hole 3, and a locking bolt 4 is threadedly connected to the inner wall of the threaded hole 3. A locking gasket 5 is detachably installed between the locking bolt 4 and the bolt shaft 2. When in use, the user needs to press the bolt shaft 2 into the component to be installed, and then insert the locking gasket 5 on the locking bolt 4 according to the actual situation, and then rotate the locking bolt 4 so that the locking bolt 4 is screwed into the threaded hole 3, and fits on the component to be installed for tightening, thereby completing the connection of the component to be installed. Compared with the locking nut locking in the prior art, this locking method, on the one hand, does not need to extend the threaded connection end, so that the overall connection can be more compact, the length of the bearing can be reduced, and the installation space can be reduced. On the other hand, it also ensures that the position of the threaded connection section will not be blocked by the component to be installed, and the thickness of the end of the locking bolt 4 can be adjusted by itself, thereby ensuring the stability of the locking installation.

[0033] like Figure 2 As shown, during the installation process, when the length of the component to be installed is longer than the length of the bolt shaft 2, the user can still tighten the component to be installed by screwing in the locking bolt 4. At this time, a position with a gap will appear between the locking bolt 4 and the component to be installed.

[0034] The implementation principle of the embodiment of the present application is: when it is put into actual use, the user presses the bolt shaft 2 into the component to be installed, and then the user inserts the locking gasket 5 on the locking bolt 4 according to the actual situation, and then aligns the locking bolt 4 with the threaded hole 3, and rotates the locking bolt 4 so that the locking bolt 4 is screwed into the threaded hole 3, so that the end of the locking bolt 4 or the locking gasket 5 fits on the component to be installed, the bearing is locked with the component to be installed, and the installation is completed.

[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An internal thread bolt type roller bearing, characterized in that: The invention comprises an outer ring (1) and a bolt shaft (2), wherein a rolling body is arranged between the bolt shaft (2) and the outer ring (1), a threaded hole (3) is opened inside the bolt shaft (2), a locking bolt (4) is threadedly connected on the inner wall of the threaded hole (3), and a locking gasket (5) is arranged between the locking bolt (4) and the bolt shaft (2).

2. The internal thread bolt type roller bearing according to claim 1, characterized in that: An oil injection hole (6) is provided on the bolt shaft (2), and the oil injection hole (6) is communicated with the threaded hole (3).

3. The internal thread bolt type roller bearing according to claim 2, characterized in that: The bolt shaft (2) is provided with an axial diameter hole (7), and the axial diameter hole (7) is communicated with the oil injection hole (6).

4. The internal thread bolt type roller bearing according to claim 1, characterized in that: The rolling body is a needle roller (8).

5. The internal thread bolt type roller bearing according to claim 4, characterized in that: A plurality of needle rollers (8) are provided, and the needle rollers (8) are arranged along the circumference of the bolt shaft (2), and the plurality of needle rollers (8) are fully loaded on the bolt shaft (2).

6. The internal thread bolt type roller bearing according to claim 1, characterized in that: A first sealing ring (9) is arranged between the outer ring (1) and the bolt shaft (2).

7. The internal thread bolt type roller bearing according to claim 1, characterized in that: A retaining ring (10) is installed on the bolt shaft (2), and the retaining ring (10) is located between the bolt shaft (2) and the outer ring (1).

8. The internal thread bolt type roller bearing according to claim 7, characterized in that: A second sealing ring (20) is provided between the retaining ring (10) and the outer ring (1).

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