A deflection prevention slot structure for a miniature encoder

Abstract

This utility model discloses an anti-deflection slot structure for a miniature encoder, including an anti-deflection ring disposed within a connecting disk slot. The anti-deflection ring comprises an elastic ring and two limiting rings, one on the front and one on the rear of the elastic ring. The two limiting rings form an annular groove on the outer circumferential surface of the elastic ring. The outer circumferential wall of the elastic ring contacts the inner wall of the connecting disk slot, and the two limiting rings respectively limit the movement of the front and rear of the connecting disk. Multiple air holes are provided on the elastic ring. This utility model has the advantage of buffering the kinetic energy transmitted from the encoder body output end to the connecting disk, reducing the impact on the screw connection, and ensuring a stable connection at the screw connection.

Description

Technical Field

[0001] This utility model relates to the field of encoder buffer anti-deflection technology, specifically an anti-deflection slot structure for a miniature encoder. Background Technology

[0002] The core function of an encoder is to convert information from one form to another. Rotary encoders convert the rotation angle / speed of a shaft into electrical signals (pulses or digital codes) through changes in grating disks, magnetic poles, or capacitance.

[0003] The shaft of the rotary encoder is connected to the device under test. The rotary encoder is mainly fixed to the device through a mounting bracket. The shaft of the rotary encoder is very close to the mounting bracket. The kinetic energy transmitted from the shaft will act on the mounting bracket. The groove where the shaft and the mounting bracket are connected is in hard contact, which means that the kinetic energy cannot be dissipated. The position where the mounting bracket and the rotary encoder are fixed bears more kinetic energy. Once the connection is loose, the rotary encoder is prone to slight deflection and vibration as the shaft rotates.

[0004] In view of this, we propose an anti-deflection slot structure for a miniature encoder. Utility Model Content

[0005] The purpose of this invention is to provide an anti-deflection slot structure for a miniature encoder to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an anti-deflection slot structure for a miniature encoder, comprising an anti-deflection ring disposed in a connecting disk slot, the anti-deflection ring comprising an elastic ring and a limiting ring, the two limiting rings being disposed at the front and rear of the elastic ring respectively, the two limiting rings forming an annular groove on the outer circumferential surface of the elastic ring, the outer circumferential wall of the elastic ring contacting the inner wall of the connecting disk slot, and the two limiting rings limiting the front and rear of the connecting disk respectively;

[0007] The elastic ring has multiple air holes.

[0008] Preferably, the output end of the encoder body is inserted into the slot of the connecting disk, and the connecting disk and the output end of the encoder body are fixed by screws.

[0009] Preferably, the middle section of the inner peripheral wall of the elastic ring is formed as an annular surface B, the cross-section of the annular surface B is linear, and the outer peripheral wall of the encoder body output end abuts against the annular surface B.

[0010] Preferably, the front and rear sections of the inner peripheral wall of the elastic ring are respectively set as annular surfaces A, and the cross section of the annular surface A is arc-shaped.

[0011] Preferably, the pores are arc-shaped, and the openings at both ends of the pores are located at two annular surfaces A.

[0012] Preferably, the opposite sides of the two limiting rings are both set as annular surfaces C.

[0013] Preferably, a connecting bracket is fixed on the connecting plate.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This utility model, by setting an elastic ring and a limiting ring, has the advantages of buffering the kinetic energy transmitted from the output end of the encoder body to the connecting plate, reducing the impact on the screw connection, and making the screw connection stable. It solves the problem of loose connection, which easily causes the rotary encoder to deflect slightly and vibrate as the shaft rotates.

[0016] 2. This utility model has air holes. When the elastic ring is squeezed due to vibration, the gas in the air holes is discharged. The kinetic energy is consumed by the flow of gas. When the gas flows, there is intense friction between molecules and between molecules and the cavity wall, which directly converts the vibration kinetic energy into heat energy and dissipates it. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the installation structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the anti-deflection ring installation structure of this utility model;

[0020] Figure 4 For the present utility model Figure 3 Enlarged diagram of point A.

[0021] In the diagram: 100, encoder body; 200, connecting plate; 300, screw; 400, connecting bracket; 500, anti-deflection ring;

[0022] 501, Elastic Ring; 502, Limiting Ring;

[0023] 5011, Annular surface A; 5012, Annular surface B; 5013, Pores;

[0024] 5021, toroidal surface C. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides two embodiments.

[0027] Example 1

[0028] Please see Figures 1 to 4 An anti-deflection slot structure for a miniature encoder is disclosed. The output end of the encoder body 100 passes through the slot in the connecting plate 200. A screw 300 passes through a hole in the connecting plate 200 and is screwed into the screw hole of the output end of the encoder body 100. A connecting bracket 400 is fixed to the connecting plate 200 and secured to the equipment by bolts. An anti-deflection ring 500 is included within the slot of the connecting plate 200. The anti-deflection ring 500 comprises an elastic ring 501 and a limiting ring 502, both made of rubber. The two limiting rings 502 are respectively positioned at the front and rear of the elastic ring 501, forming an annular groove on the outer circumference of the elastic ring 501. The annular groove engages with the inner circumference of the slot in the connecting plate 200. The outer circumferential wall of the elastic ring 501 contacts the inner wall of the slot in the connecting plate 200. The two limiting rings 502 limit the movement of the front and rear of the connecting plate 200.

[0029] This utility model, by setting an elastic ring 501 and a limiting ring 502, has the advantages of buffering the kinetic energy transmitted from the output end of the encoder body 100 to the connecting plate 200, reducing the impact on the screw 300 connection, and making the screw 300 connection stable. It solves the problem of loose connection, which easily causes the rotary encoder to deflect slightly and vibrate as the shaft rotates.

[0030] Multiple air holes 5013 are provided on the elastic ring 501.

[0031] This invention features a vent 5013. When the elastic ring 501 is squeezed due to vibration, the gas inside the vent 5013 is discharged. The kinetic energy is consumed by the flow of the gas. During the gas flow, intense frictional and viscous forces occur between molecules and between molecules and the cavity wall, directly converting the vibrational kinetic energy into heat energy and dissipating it.

[0032] Example 2

[0033] Please see Figure 3 and Figure 4 A deflection prevention slot structure for a miniature encoder, wherein the middle section of the inner peripheral wall of the elastic ring 501 is set as an annular surface B5012, the cross section of the annular surface B5012 is linear, the outer peripheral wall of the output end of the encoder body 100 abuts and fits with the annular surface B5012, and the annular surface B5012 contacts the outer peripheral wall of the output end of the encoder body 100.

[0034] The inner peripheral wall of the elastic ring 501 is respectively set as annular surface A5011. The cross section of the annular surface A5011 is arc-shaped. When the output end of the encoder body 100 passes through the anti-deflection ring 500, it first enters from one of the annular surfaces A5011. The annular surface A5011 is set with a larger opening to facilitate the passage of the output end of the encoder body 100.

[0035] The vent 5013 is arc-shaped, with its two ends opening at two annular surfaces A5011. When the arc-shaped vent 5013 is compressed and gas is expelled, the gas impacts the inner wall of the vent 5013 more frequently, thus consuming more kinetic energy.

[0036] Both limiting rings 502 have annular surfaces C5021 on opposite sides. When the anti-deflection ring 500 is installed, one limiting ring 502 is easily squeezed through the slot when passing through the slot of the connecting plate 200.

[0037] Working principle: When installing the anti-deflection ring 500, a limiting ring 502 passes through the slot of the connecting plate 200 until the two limiting rings 502 pass through the slot. The two limiting rings 502 are located at the front and rear of the connecting plate 200 respectively, and the annular groove engages with the inner circumference of the slot of the connecting plate 200. The screw 300 passes through the hole on the connecting plate 200 and is screwed into the screw hole at the output end of the encoder body 100. The connecting bracket 400 is fixed to the equipment with bolts, and the shaft of the encoder body 100 is connected to the output shaft of the equipment.

[0038] The kinetic energy transmitted from the encoder body 100 to the connecting disk 200 passes through the anti-deflection ring 500. The anti-deflection ring 500 is buffered by elastic deformation. When the elastic ring 501 is squeezed due to vibration, the gas in the air hole 5013 is discharged. The kinetic energy is consumed by the flow of gas. When the gas flows, there is intense frictional viscous force between molecules and between molecules and the cavity wall, which directly converts the vibration kinetic energy into heat energy and dissipates it, reducing the impact on the screw 300 connection and making the screw 300 connection stable.

[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A deflection-proof clamping groove structure of a micro-encoder, characterized by: The device includes an anti-deflection ring (500) disposed in the slot of the connecting plate (200). The anti-deflection ring (500) includes an elastic ring (501) and a limiting ring (502). The two limiting rings (502) are respectively disposed in front of and behind the elastic ring (501). The two limiting rings (502) form an annular groove on the outer peripheral surface of the elastic ring (501). The outer peripheral wall of the elastic ring (501) contacts the inner wall of the slot of the connecting plate (200). The two limiting rings (502) limit the front and rear of the connecting plate (200) respectively. The elastic ring (501) has multiple air holes (5013).

2. The anti-deflection slot structure of a micro-encoder according to claim 1, wherein: The output end of the encoder body (100) is inserted into the slot of the connecting plate (200), and the connecting plate (200) and the output end of the encoder body (100) are fixed by screws (300).

3. The anti-deflection slot structure of a micro-encoder according to claim 1, wherein: The middle section of the inner peripheral wall of the elastic ring (501) is set as an annular surface B (5012), and the cross section of the annular surface B (5012) is linear. The outer peripheral wall of the output end of the encoder body (100) abuts against the annular surface B (5012).

4. The anti-deflection slot structure of a micro-encoder according to claim 3, wherein: The inner peripheral wall of the elastic ring (501) is respectively set as annular surface A (5011) in the front and rear sections, and the cross section of the annular surface A (5011) is arc-shaped.

5. The anti-deflection slot structure of a micro-encoder according to claim 4, wherein: The vent (5013) is arc-shaped, and the openings at both ends of the vent (5013) are located at two annular surfaces A (5011).

6. The anti-deflection slot structure of a micro-encoder according to claim 1, wherein: The two limiting rings (502) are both set as annular surfaces C (5021) on opposite sides.

7. The anti-tilt slot structure of a micro-encoder according to claim 1, wherein: A connecting bracket (400) is fixed on the connecting plate (200).

Images