Rotary speed reducer capable of adjusting limiting angle

Abstract

The utility model relates to a rotary speed reducer capable of adjusting a limit angle, which comprises a base, the base comprises a seat ring and a shaft casing, a slewing bearing is arranged in the seat ring, a worm is arranged in the shaft casing, the slewing bearing comprises a bearing inner ring and a bearing outer ring, and the worm is arranged in the bearing inner ring. A plurality of rolling bodies are arranged between the bearing inner ring and the bearing outer ring, the bearing inner ring is fixed with the seat ring, the bearing outer ring is matched with the worm, a limiting seat is arranged on the bearing outer ring, a limiting column is arranged on the bearing inner ring, and the limiting seat is matched with the limiting column. According to the rotary speed reducer capable of adjusting the limiting angle, the limiting device can be installed at any position to change the limiting angle, a mold base does not need to be opened again, and production cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a rotary speed reducer with adjustable limiting angle and belongs to the technical field of rotary speed reducers. BACKGROUND

[0002] There are two types of rotary speed reducers used on existing rotary tables: the first type is provided with a limiting device; and the second type is not provided with a limiting device and can realize 360-degree rotation.

[0003] The limiting device of the existing rotary speed reducer generally increases a limiting block on a base and uses a worm gear as a limiting step. For adjusting the limiting angle, the worm gear needs to be reprocessed or the base needs to be re-molded, which is too costly. SUMMARY

[0004] The utility model provides a rotary speed reducer with adjustable limiting angle, which can install the limiting device at any position to change the limiting angle, does not need to re-mold the base, and reduces the production cost.

[0005] The utility model provides a rotary speed reducer with adjustable limiting angle, which can install the limiting device at any position to change the limiting angle, does not need to re-mold the base, and reduces the production cost.

[0006] Optionally, the supporting outer ring is provided with an outer gear ring on the outer periphery, and the outer gear ring is matched with the worm gear.

[0007] Optionally, the supporting outer ring is provided with an extension part on the front face and upward, the installation groove is formed on the front face of the extension part, and the limiting seat is arranged in the installation groove.

[0008] Optionally, the limiting seat comprises a base part and a limiting part, the base part is arranged in the installation groove, and the limiting part is exposed from the extension part.

[0009] Optionally, a plurality of installation holes are formed on the front face of the supporting inner ring, and the limiting column is arranged in the installation hole.

[0010] Optionally, the plurality of installation holes are located on the same circumference.

[0011] Optionally, the limiting column has two.

[0012] Optionally, the supporting inner ring and the seat ring are connected through bolts.

[0013] Optionally, the limiting seat and the supporting outer ring are connected through bolts.

[0014] Optionally, a motor is arranged on one side of the shaft shell, and an output end of the motor is connected with the worm.

[0015] Compared with the prior art, the limiting device has the advantages that:

[0016] 1. The limiting device can be installed at any position to change the limiting angle, and the mold base does not need to be re-opened, thereby reducing the production cost.

[0017] 2. The limiting device is convenient to disassemble and install, and is beneficial to the adjustment of the limiting angle. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of a rotary reducer with adjustable limiting angle.

[0019] Figure 2 It is a front view. Figure 1

[0020] Figure 3 It is a sectional view. Figure 2

[0021] It is another perspective view of the rotary reducer with adjustable limiting angle. Figure 4

[0022] It is a front view. Figure 5 Figure 4

[0023] Among them:

[0024] Base 1

[0025] Seat ring 1.1

[0026] Shaft shell 1.2

[0027] Rotary support 2

[0028] Supporting inner ring 2.1

[0029] Supporting outer ring 2.2

[0030] Rolling element 2.3

[0031] Outer gear ring 2.4

[0032] Extension 2.5

[0033] Worm 3

[0034] Limiting seat 4

[0035] Base 4.1​​​

[0036] limiting part 4.2

[0037] limiting column 5

[0038] mounting groove 6

[0039] mounting hole 7

[0040] motor 8. DETAILED DESCRIPTION

[0041] The utility model will be described in further detail below in combination with the drawings.

[0042] As Figures 1-5 shown, the rotary reducer of the embodiment can adjust the limiting angle, which comprises a base 1, the base 1 comprises a race 1.1 and a shaft housing 1.2, the race 1.1 is provided with a rotary support 2, the shaft housing 1.2 is provided with a worm 3, the rotary support 2 comprises a bearing inner ring 2.1 and a bearing outer ring 2.2, a plurality of rolling elements 2.3 are arranged between the bearing inner ring 2.1 and the bearing outer ring 2.2, the bearing inner ring 2.1 is fixed with the race 1.1, the bearing outer ring 2.2 is matched with the worm 3, the bearing outer ring 2.2 is provided with a limiting seat 4, the bearing inner ring 2.1 is provided with a limiting column 5, and the limiting seat 4 is matched with the limiting column 5;

[0043] the bearing outer ring 2.2 is provided with an outer gear ring 2.4, and the outer gear ring 2.4 is matched with the worm 3;

[0044] the bearing outer ring 2.2 is provided with an extension 2.5 upwards, the mounting groove 6 is formed in the extension 2.5, and the limiting seat 4 is arranged in the mounting groove 6;

[0045] the limiting seat 4 comprises a base 4.1 and a limiting part 4.2, the base 4.1 is arranged in the mounting groove 6, and the limiting part 4.2 is exposed to the extension 2.5;

[0046] the bearing inner ring 2.1 is provided with a plurality of mounting holes 7, and the limiting column 5 is arranged in the mounting hole 7;

[0047] the plurality of mounting holes 7 are located on the same circumference;

[0048] the limiting column 5 has two;

[0049] the bearing inner ring 2.1 and the race 1.1 are connected through bolts;

[0050] the limiting seat 4 and the bearing outer ring 2.2 are connected through bolts;

[0051] The motor 8 is arranged on one side of the shaft shell 1.2 and the output end of the motor 8 is connected with the worm 3.

[0052] Working principle:

[0053] The base ring is fixed with the supporting inner ring, the supporting outer ring and the limiting seat are fixed, the limiting column and the supporting inner ring are fixed, the worm drives the supporting outer ring to rotate, thereby driving the limiting seat to rotate, when the limiting seat rotates to the left side and the right side of the limiting column position, the limiting purpose is achieved;

[0054] By adjusting the position of the limiting column or the width of the limiting seat, the device can meet any angle limiting requirement;

[0055] If limiting is not needed, the limiting seat or the limiting column can be removed, at this time, 360° unlimited rotation can be met.

[0056] In addition to the above-mentioned embodiments, the utility model also includes other implementation manners, and the technical solutions formed by using equivalent transformation or equivalent replacement should fall within the protection scope of the utility model claim.

Claims

1. A slewing reducer capable of adjusting a limit angle, characterized in that: It includes base (1), base (1) includes seat (1.1) and shaft shell (1.2), the swivel support (2) is arranged in seat (1.1), the worm (3) is arranged in shaft shell (1.2), the swivel support (2) includes support inner ring (2.1) and support outer ring (2.2), a plurality of rolling elements (2.3) are arranged between support inner ring (2.1) and support outer ring (2.2), support inner ring (2.1) is fixed with seat (1.1), support outer ring (2.2) is matched with worm (3), the limiting seat (4) is arranged on support outer ring (2.2), the limiting post (5) is arranged on support inner ring (2.1), the limiting seat (4) is matched with limiting post (5).

2. The slewing reducer with adjustable limit angle according to claim 1, characterized in that: The outer periphery of the support outer ring (2.2) is provided with an outer gear ring (2.4), and the outer gear ring (2.4) is matched with the worm (3).

3. The slewing reducer with adjustable limit angle according to claim 1, characterized in that: The front of the support outer ring (2.2) is provided with an extension (2.5) upward, the extension (2.5) is provided with a mounting groove (6) in the front, and the limiting seat (4) is arranged in the mounting groove (6).

4. The slewing reducer with adjustable limit angle according to claim 3, characterized in that: The limiting seat (4) includes a base (4.1) and a limiting portion (4.2), the base (4.1) is arranged in the mounting groove (6), and the limiting portion (4.2) is exposed to the extension (2.5).

5. The slewing reducer with adjustable limit angle according to claim 1, characterized in that: The front of the support inner ring (2.1) is provided with a plurality of mounting holes (7), and the limiting post (5) is arranged in the mounting hole (7).

6. The slewing reducer with adjustable limit angle according to claim 5, characterized in that: A plurality of mounting holes (7) are located on the same circumference.

7. The slewing reducer with adjustable limit angle according to claim 1, characterized in that: The limiting post (5) has two.

8. The slewing reducer with adjustable limit angle according to claim 1, characterized in that: The support inner ring (2.1) and the seat (1.1) are connected by bolts.

9. The slewing reducer with adjustable limit angle according to claim 1, characterized in that: The limiting seat (4) and the support outer ring (2.2) are connected by bolts.

10. The slewing reducer with adjustable limit angle according to claim 1, characterized in that: One side of the shaft shell (1.2) is provided with a motor (8), and the output end of the motor (8) is connected with the worm (3).

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