Bevel gear backlash adjusting and anti-loosening structure

Abstract

The utility model discloses a bevel gear backlash adjusting and anti-loosening structure, relates to the technical field of bevel gear backlash adjusting, and aims to enable the bevel gear backlash adjusting to be more convenient and the anti-loosening effect to be more reliable. In the bevel gear backlash adjusting and anti-loosening structure, internal threads with different screwing directions are machined on the two sides of a bearing position of a shell, and external threads with different screwing directions are machined on the outer circle of an adjusting check ring and the outer circle of an anti-loosening check ring. The adjusting check ring can be used for adjusting the meshing side gap of the bevel gear to a reasonable range, the anti-loosening check ring is installed after adjustment, and the locking bolt is assembled and screwed in.

Description

Technical Field

[0001] This utility model relates to the field of bevel gear backlash adjustment technology, and in particular to a bevel gear backlash adjustment and anti-loosening structure. Background Technology

[0002] Bevel gears are commonly used transmission components in mechanical equipment and are widely used in industrial fields. Their meshing backlash directly affects the transmission efficiency, operating noise, and lifespan of bevel gears.

[0003] During the operation of bevel gears, factors such as vibration, impact, and wear may cause fasteners (such as bolts and nuts) to loosen, which will affect the meshing state of the bevel gears and may lead to a decrease in transmission efficiency, an increase in noise, and gear damage.

[0004] Therefore, improving the reliability of bevel gear release is crucial for the stable operation of the transmission system. Currently, in existing technologies, bevel gears are generally positioned using end caps or snap rings, and backlash is adjusted by grinding the end cap or placing adjusting shims between the end cap stop and the bearing.

[0005] However, the inventors of this application have found that although this method can adjust the backlash of the bevel gear, the operation is cumbersome. When adjusting the backlash, the shims need to be replaced or the end caps need to be ground multiple times, which requires a lot of time and effort. Moreover, the anti-loosening structure is unstable. During the bevel gear transmission process, problems such as bolt loosening and snap ring breakage may still occur, causing the meshing backlash to exceed the predetermined range and affecting the life of the bevel gear. Utility Model Content

[0006] The purpose of this utility model is to provide a bevel gear backlash adjustment and anti-loosening structure, which makes bevel gear backlash adjustment more convenient and anti-loosening effect more reliable.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A bevel gear backlash adjustment and anti-loosening structure includes: a housing, an adjusting retaining ring, an anti-loosening retaining ring, and a locking bolt;

[0009] The bearing seat of the housing is machined with internal threads with different directions of rotation on both sides, and the outer circles of the adjusting retaining ring and the anti-loosening retaining ring are machined with external threads with different directions of rotation. The adjusting retaining ring can be used to adjust the meshing clearance of the bevel gear to a reasonable range. After adjustment, the anti-loosening retaining ring is installed and the locking bolt is screwed in.

[0010] In practical applications, the bevel gear backlash adjustment and anti-loosening structure further includes: a bevel gear, a gear shaft, and a tapered roller bearing, wherein the bevel gear, the gear shaft, and the tapered roller bearing are sequentially installed into the housing;

[0011] The adjusting retaining rings are installed on both sides of the bearing seat of the housing, and the adjusting retaining rings are in contact with the outer ring of the tapered roller bearing; the bearing clearance can be adjusted by changing the screw-in depth of the adjusting retaining rings on both sides of the tapered roller bearing.

[0012] Specifically, once the bearing clearance adjustment is complete, rotating the adjusting retaining rings on both sides allows the gear shaft to move axially to the left or right, while ensuring that the lengths of the adjusting retaining rings screwed in and out on both sides are consistent, in order to prevent changes in the bearing clearance.

[0013] Furthermore, if the gear wear causes excessive meshing clearance, the locking bolt and the anti-loosening retaining ring are removed, and the meshing clearance is made reasonable by changing the screw-in depth of the adjusting retaining ring.

[0014] Compared with the prior art, the bevel gear backlash adjustment and anti-loosening structure of this utility model has the following advantages:

[0015] In the bevel gear backlash adjustment and anti-loosening structure provided by this utility model, the bearing positions on both sides of the housing are machined with internal threads of different directions, and the outer circles of the adjusting retaining ring and the anti-loosening retaining ring are machined with external threads of different directions. The adjusting retaining ring can be used to adjust the bevel gear meshing backlash to a reasonable range. After adjustment, the anti-loosening retaining ring is installed and tightened with a locking bolt. Therefore, when the adjusting retaining ring tends to loosen due to impact, vibration, or other factors, that is, when it has a tendency to rotate in a certain direction, the anti-loosening retaining ring will also have a tendency to move in the same direction under the action of the locking bolt. However, because the threads of the adjusting retaining ring and the anti-loosening retaining ring are opposite, they cannot rotate in the same direction, thus achieving the anti-loosening function. Attached Figure Description

[0016] Figure 1 A schematic diagram of the bevel gear backlash adjustment and anti-loosening structure provided in an embodiment of this utility model;

[0017] Figure 2 A schematic diagram of the adjusting retaining ring in the bevel gear backlash adjustment and anti-loosening structure provided in this embodiment of the utility model;

[0018] Figure 3 This is a schematic diagram of the anti-loosening retaining ring in the bevel gear backlash adjustment and anti-loosening structure provided in this embodiment of the utility model.

[0019] Figure label:

[0020] 1-Bevel gear; 2-Gear shaft; 3-Tapered roller bearing; 4-Housing; 5-Adjusting retaining ring; 6-Anti-loosening retaining ring; 7-Tightening bolt. Detailed Implementation

[0021] For ease of understanding, the bevel gear backlash adjustment and anti-loosening structure provided in the embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0022] This utility model embodiment provides a bevel gear backlash adjustment and anti-loosening structure, such as Figures 1-3 As shown, it includes: housing 4, adjusting retaining ring 5, anti-loosening retaining ring 6, and locking bolt 7;

[0023] The bearing seat of housing 4 has internal threads with different directions of rotation on both sides, and the outer circles of adjusting ring 5 and anti-loosening ring 6 have external threads with different directions of rotation. Adjusting ring 5 can be used to adjust the meshing clearance of bevel gear 1 to a reasonable range. After adjustment, anti-loosening ring 6 is installed and tightening bolt 7 is screwed in.

[0024] Compared with the prior art, the bevel gear backlash adjustment and anti-loosening structure described in this embodiment of the invention has the following advantages:

[0025] In the bevel gear backlash adjustment and anti-loosening structure provided in this embodiment of the utility model, the bearing positions of the housing 4 are machined with internal threads of different directions, and the outer circles of the adjusting retaining ring 5 and the anti-loosening retaining ring 6 are machined with external threads of different directions. The adjusting retaining ring 5 can be used to adjust the meshing backlash of the bevel gear 1 to a reasonable range. After adjustment, the anti-loosening retaining ring 6 is installed and tightened with the locking bolt 7. Therefore, when the adjusting retaining ring 5 has a tendency to loosen due to impact, vibration, or other factors, that is, when it has a tendency to rotate in a certain direction, the anti-loosening retaining ring 6 will also have a tendency to move in the same direction under the action of the locking bolt 7. However, since the threads of the adjusting retaining ring 5 and the anti-loosening retaining ring 6 are opposite, they cannot rotate in the same direction, thereby playing the anti-loosening function.

[0026] In practical applications, the bevel gear backlash adjustment and anti-loosening structure provided in this embodiment of the invention, such as... Figures 1-3 As shown, it may also include: a bevel gear 1, a gear shaft 2, and a tapered roller bearing 3, which are sequentially installed into the housing 4;

[0027] Adjusting retaining rings 5 ​​are installed on both sides of the bearing position of the housing 4, and the adjusting retaining rings 5 ​​are in contact with the outer ring of the tapered roller bearing 3; the bearing clearance can be adjusted by changing the screw-in depth of the adjusting retaining rings 5 ​​on both sides of the tapered roller bearing 3.

[0028] Specifically, such as Figures 1-3 As shown, the bearing clearance adjustment is complete. Rotating the adjusting retaining rings 5 ​​on both sides can be used to move the gear shaft 2 to the left or right, while ensuring that the length of the adjusting retaining rings 5 ​​screwed in and out on both sides is consistent, so as to prevent the bearing clearance from changing.

[0029] Furthermore, such as Figures 1-3As shown, excessive meshing clearance is caused by gear wear. The locking bolt 7 and the anti-loosening retaining ring 6 are removed, and the meshing clearance is made reasonable by changing the screwing depth of the adjusting retaining ring 5. This adjustment process is simple and efficient.

[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A bevel gear backlash adjustment and anti-loosening structure, characterized in that, include: Housing, adjusting retaining ring, anti-loosening retaining ring, locking bolt; The bearing seat of the housing is machined with internal threads with different directions of rotation on both sides, and the outer circles of the adjusting retaining ring and the anti-loosening retaining ring are machined with external threads with different directions of rotation. The adjusting retaining ring can be used to adjust the meshing clearance of the bevel gear to a reasonable range. After adjustment, the anti-loosening retaining ring is installed and the locking bolt is screwed in.

2. The bevel gear backlash adjustment and anti-loosening structure according to claim 1, characterized in that, Also includes: A bevel gear, a gear shaft, and a tapered roller bearing are sequentially installed into the housing. The adjusting retaining rings are installed on both sides of the bearing seat of the housing, and the adjusting retaining rings are in contact with the outer ring of the tapered roller bearing; the bearing clearance can be adjusted by changing the screw-in depth of the adjusting retaining rings on both sides of the tapered roller bearing.

3. The bevel gear backlash adjustment and anti-loosening structure according to claim 2, characterized in that, Once the bearing clearance adjustment is complete, rotating the adjusting retaining rings on both sides allows the gear shaft to move axially to the left or right. At the same time, it ensures that the length of the adjusting retaining rings screwed in and out on both sides is consistent, in order to prevent changes in the bearing clearance.

4. The bevel gear backlash adjustment and anti-loosening structure according to claim 3, characterized in that, If excessive meshing clearance is caused by gear wear, the locking bolt and the anti-loosening retaining ring are removed, and the meshing clearance is adjusted by changing the screwing depth of the adjusting retaining ring.

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