Anti-shake device for operation of encoder

Abstract

The utility model discloses an encoder operation anti-shake device which comprises an encoder, an eccentric machine base body, a transmission shaft and a coupler, the encoder is installed in the eccentric machine base body, a concentric sleeve used for installing and positioning the encoder is installed in the eccentric machine base body, the encoder is installed in the eccentric machine base body through the positioning concentric sleeve, and the transmission shaft is connected with the coupler. The positioning concentric sleeve can ensure the concentricity of the encoder, an input shaft is inserted into the input end of the encoder, one end of the input shaft extends into the positioning concentric sleeve, and one end of the coupler is fixedly connected with the input shaft. The utility model relates to the technical field of encoders, in particular to an anti-shake device for the operation of an encoder, which can obviously reduce the shake of the encoder during the operation of the encoder so as to reduce the noise, and is favorable for properly prolonging the service life of the encoder.

Description

Technical Field

[0001] The utility model relates to the technical field of encoders, in particular to an encoder operation anti-shake device. Background Art

[0002] An encoder is a device that compiles and converts signals (such as bit streams) or data into a signal form that can be used for communication, transmission, and storage. Rotary encoders are widely used in automation equipment such as CNC equipment, broadcast communications, instrumentation, and household appliances. Their operating principle is to output a pulse signal from an output pin by rotating the handle. Traditional encoders are mostly rigidly connected to the shaft, using elastic sheet metal brackets to position the encoder. When the encoder is installed on a mechanical structure, it will produce jitter. This is because the encoder's initial design did not meet the high concentricity requirements for the rotating drum that clamps the input shaft, the bearings that fix the drum, and the housing. As a result, the concentricity deviations of these three components are large. When the input shaft rotates at high speed, it causes the encoder housing to vibrate with significant amplitude and produces relatively noticeable noise, which in turn affects the encoder's performance and lifespan. Therefore, improvements are needed to address this existing problem. Utility Model Content

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides an encoder operation anti-shake device which can significantly reduce the jitter of the encoder during operation, thereby reducing noise and helping to appropriately extend the life of the encoder.

[0004] The technical solution adopted by the present utility model is as follows: the encoder operation anti-shake device provided by this solution includes an encoder, an eccentric machine base, a fixed concentric shaft and a coupling, the encoder is installed in the eccentric machine base, and a concentric sleeve for installing and positioning the encoder is installed inside the eccentric machine base. The encoder is installed in the eccentric machine base through the concentric sleeve, and the concentric sleeve can ensure the concentricity of the encoder. The input end of the encoder is connected with an input shaft, one end of the input shaft extends into the concentric sleeve, and one end of the coupling is connected and fixed to the input shaft, a bearing groove for installing a bearing is provided inside the eccentric machine base, a bearing is installed in the bearing groove, the fixed concentric shaft is installed in the eccentric machine base through a bearing, the rear end of the fixed concentric shaft is connected to the other end of the coupling, the input shaft and the fixed concentric shaft are connected through a coupling, and top screws are provided at both ends of the coupling, and the coupling transmits the input shaft and the fixed concentric shaft through the top screws.

[0005] Furthermore, the bearings are provided in two groups, and the two groups of bearings respectively support and limit the front and rear ends of the concentric shaft.

[0006] Furthermore, an oil seal is installed at the front end of the eccentric machine base, and one end of the fixed concentric shaft extends to the outside of the oil seal.

[0007] Furthermore, a dust plug is provided at the lower end of the eccentric machine base.

[0008] Specifically, the coupling is one of an Oldham coupling and a spring coupling, and the Oldham coupling or the spring coupling can effectively offset the runout.

[0009] Among them, the encoder operation anti-shake device is equipped with a detachable concentric positioning tool, and the concentric positioning tool is provided with a positioning mounting hole. The concentric positioning tool is detachably installed with the encoder through the positioning mounting hole. The concentric shaft and the encoder can be positioned and installed through the concentric positioning tool to ensure the concentricity of the installation.

[0010] The beneficial effects achieved by the utility model using the above structure are as follows: This solution provides an encoder operation anti-shake device, which is used to connect the fixed concentric shaft and the input shaft through the cross slider coupling. When the encoder is running, the coupling has a larger allowable radial deviation to offset the non-concentricity between the fixed concentric shaft and the input shaft and the non-concentricity of the encoder itself, thereby reducing the jitter and noise of the encoder and helping to extend the service life of the encoder; the positioning concentric sleeve can be rigidly connected to the encoder to reduce the jitter of the encoder housing, so that the radial runout of the input shaft is offset by the coupling, reducing the operating runout and noise of the encoder, and further improving the service life of the encoder. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0012] Figure 1 This is a schematic diagram of the three-dimensional structure of the encoder operation anti-shake device proposed in this solution;

[0013] Figure 2 This is a schematic diagram of the cross-sectional structure of the encoder anti-shake device proposed in this solution;

[0014] Figure 3 for Figure 2 A partial enlarged view of part A

[0015] Figure 4 Installation diagram of the concentric positioning fixture for the encoder anti-shake device proposed in this solution

[0016] Figure 5 for Figure 4 Schematic diagram of the cross-section structure.

[0017] Among them, 1. Encoder, 2. Eccentric machine base, 3. Fixed concentric shaft, 4. Coupling, 5. Concentric sleeve, 6. Input shaft, 7. Bearing groove, 8. Bearing, 9. Oil seal, 10. Dust plug, 11. Concentric positioning tooling, 12. Positioning mounting hole. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0019] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0020] like Figure 1 、 Figure 2 and Figure 3 As shown, the technical solution adopted by the present invention is as follows: the encoder operation anti-shake device provided by the present invention includes an encoder 1, an eccentric machine base 2, a fixed concentric shaft 3 and a coupling 4. The encoder 1 is installed in the eccentric machine base 2. A concentric sleeve 5 for installing and positioning the encoder 1 is installed inside the eccentric machine base 2. The encoder 1 is installed in the eccentric machine base 2 through the concentric sleeve 5. The concentric sleeve 5 can ensure the concentricity of the encoder 1. The input end of the encoder 1 is plugged with an input shaft 6, and one end of the input shaft 6 extends To the concentric sleeve 5, the coupling 4 is a cross slider coupling 4, one end of the coupling 4 is connected and fixed to the input shaft 6, a bearing groove 7 for installing the bearing 8 is provided inside the eccentric machine base 2, and a bearing 8 is installed in the bearing groove 7. The fixed concentric shaft 3 is installed in the eccentric machine base 2 through the bearing 8, and the rear end of the fixed concentric shaft 3 is connected to the other end of the coupling 4. The input shaft 6 and the fixed concentric shaft 3 are connected through the coupling 4. There are top screws at both ends of the coupling 4, and the coupling 4 transmits the input shaft 6 and the fixed concentric shaft 3 through the top screws.

[0021] There are two groups of bearings 8, which respectively support and limit the front and rear ends of the fixed concentric shaft 3. An oil seal 9 is installed at the front end of the eccentric machine base 2, and one end of the fixed concentric shaft 3 extends to the outside of the oil seal 9. A dust plug 10 is provided at the lower end of the eccentric machine base 2.

[0022] like Figure 4 and Figure 5 As shown, the encoder operation anti-shake device is provided with a detachable concentric positioning tool 11, and a positioning mounting hole 12 is provided on the concentric positioning tool 11. The concentric positioning tool 11 is detachably mounted on the encoder 1 through the positioning mounting hole 12. The fixed concentric shaft 3 and the encoder 1 can be positioned and mounted through the concentric positioning tool 11, ensuring that the encoder 1, the fixed concentric shaft 3 and the positioning concentric sleeve 5 can achieve the required concentricity during installation.

[0023] Example 1: Figure 4 and Figure 5 As shown, assemble the bearing 8 and the fixed concentric shaft 3 as shown; then install the concentric sleeve 5 on the concentric positioning tool 11, and then put the encoder 1 on the fixed concentric shaft 3. The rotating drum at the output end of the encoder 1 has a locking mechanism. The encoder 1 and the fixed concentric shaft 3 are assembled through the locking mechanism, and then the mounting holes on the concentric positioning tool 11 are screwed to lock the encoder 1 and the concentric sleeve 5. At this time, the concentric shaft 5 is fixed to ensure that the encoder 2 and the concentric sleeve 5 can achieve the required concentricity. At this time, loosen the locking screw on the encoder 1, and unplug the assembled encoder 1 and concentric sleeve 5 for standby use.

[0024] Example 2: Figure 1 、 Figure 2 and Figure 3 As shown, the bearing 8 is installed through the bearing groove 7 so that the bearing 8 is installed in the eccentric machine base 2, and the fixed concentric shaft 3 is installed in the bearing 8 through the retaining spring, and the input shaft 6 and the fixed concentric shaft 3 are connected through the coupling 4. The input shaft 6 and the fixed concentric shaft 3 are installed and fixed to the coupling 4 through the top screw, and the installed encoder 1 and the concentric sleeve 5 are installed in the base of the eccentric machine base 2, so that the input end of the encoder 1 is plugged into the input shaft 6. When the fixed concentric shaft 3 rotates, the input shaft 6 drives the encoder 1 to operate through the connection of the coupling 4. Since the coupling 4 adopts the cross slider coupling 4, it has a large allowable radial deviation, which can offset the eccentricity of the fixed concentric shaft 3 and the input shaft 6 and the eccentricity of the encoder 1 itself, thereby reducing the jitter and noise of the encoder 1, which is conducive to extending the service life of the encoder 1.

[0025] The concentric sleeve 5 can be rigidly connected to the encoder 1, reducing the vibration of the encoder 1 housing, so that the radial runout of the input shaft 6 is offset by the coupling 4, reducing the operating runout and noise of the encoder 1. In theory, it is beneficial to extend the service life of the internal moving parts of the encoder 1 and further extend the service life of the encoder 1.

[0026] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and range of equivalents of the claims are included in the present invention. Any reference signs in the claims should not be construed as limiting the claim to which they relate.

[0028] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An encoder operation anti-shake device, comprising an encoder and an eccentric machine base, characterized in that: It also includes a fixed concentric shaft and a coupling, the encoder is installed in the eccentric machine base, a concentric sleeve for installing and positioning the encoder is installed inside the eccentric machine base, the encoder is installed in the eccentric machine base through the concentric sleeve, the concentric sleeve can ensure the concentricity of the encoder, the encoder input end is connected with an input shaft, one end of the input shaft extends into the concentric sleeve, one end of the coupling is connected and fixed to the input shaft, a bearing groove for installing a bearing is provided inside the eccentric machine base, a bearing is installed in the bearing groove, the fixed concentric shaft is installed in the eccentric machine base through the bearing, and the rear end of the fixed concentric shaft is connected to the other end of the coupling.

2. The encoder operation anti-shake device according to claim 1, characterized in that: The input shaft and the fixed concentric shaft are connected through a coupling. Both ends of the coupling are provided with jack screws, and the coupling transmits the input shaft and the fixed concentric shaft through the jack screws.

3. The encoder operation anti-shake device according to claim 2, characterized in that: The bearings are provided in two groups, and the two groups of bearings respectively support and limit the front and rear ends of the concentric shaft.

4. The encoder operation anti-shake device according to claim 3, characterized in that: An oil seal is installed at the front end of the eccentric machine base, and one end of the fixed concentric shaft extends to the outside of the oil seal.

5. The encoder operation anti-shake device according to claim 4, characterized in that: The coupling is one of a cross-slider coupling and a spring coupling.

6. The encoder operation anti-shake device according to claim 5, characterized in that: A dust plug is provided at the lower end of the eccentric machine base.

7. The encoder operation anti-shake device according to any one of claims 1 to 6, characterized in that: It also includes a detachable concentric positioning tool, which is provided with a positioning mounting hole. The concentric positioning tool is detachably mounted to the encoder through the positioning mounting hole. The concentric shaft and the encoder can be positioned and mounted through the concentric positioning tool to ensure the concentricity of the installation.

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