CN112032496A - Stable encoder flexible connector - Google Patents

Abstract

The invention discloses a stable encoder flexible connector, which comprises an encoding assembly, a first encoder, a second encoder, a connecting rod, a damping connecting shaft and a base panel, wherein the connecting rod penetrates through the axes of the first encoder and the second encoder and is connected with the axes of the first encoder and the second encoder; and a support assembly comprising a base connected with the connecting rod; the invention enables the encoder to realize the mounting mode of the encoder independent of the main body equipment by means of the flexible connector, thereby reducing mechanical vibration; a damping structure is designed, so that the connection mode of the encoder and the transmission shaft is changed from hard connection to soft connection, and the encoder is prevented from being damaged by mechanical play; the dual encoders are designed to be installed, and when the used encoder fails, the program is automatically switched to the standby encoder, so that one is used and the other is standby, and the redundancy of the system is improved; the spare part cost is reduced, the fault time is reduced, and the working strength of maintenance personnel is reduced.

Description

A stable encoder soft connector

technical field

The invention relates to the technical field of industrial automation, in particular to a stable encoder soft connector.

Background technique

Encoders, also known as code discs, are widely used in the field of industrial automation because of their characteristics of converting angular displacement into electrical signals. They are usually used to measure the rotational speed or angle of a motor and are irreplaceable. In addition to its own quality, the measurement accuracy and service life of the encoder are also related to the on-site environment and installation method. For the same quality encoder, the installation method directly determines its service life. Usually, the installation method of the encoder has the following disadvantages: ① Poor stability: the encoder is a precision instrument, and its performance and service life are affected by the installation method; the encoder and the drive shaft are often hard-connected, and the drive shaft vibrates when it rotates, damaging the code. device. ②Large vibration: The installation method of the encoder is fixed due to its transmission equipment, such as the motor encoder, or installed on the motor connection shaft, or installed on other mechanical transmission connection, and the motor itself vibrates during the operation process. The encoder on it also has mechanical vibration. ③Large movement: the encoder is also affected by the axial movement in addition to the vibration from the circumferential direction; the central axis of the encoder and the center line of the transmission shaft do not coincide, and the encoder is affected by the eccentric force of the transmission shaft when the encoder rotates. Mechanical movement. ④ Poor redundancy: The production equipment is generally equipped with one encoder. For equipment with high control accuracy requirements, when the encoder fails, there is no spare encoder to switch, resulting in downtime.

The measurement accuracy of the encoder directly affects the control accuracy. The installation of the encoder cannot solve the mechanical vibration and mechanical movement, so it cannot provide accurate speed matching and angle positioning for the control system.

SUMMARY OF THE INVENTION

The purpose of this section is to outline some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the abstract and title of the application to avoid obscuring the purpose of this section, abstract and title, and such simplifications or omissions may not be used to limit the scope of the invention.

The present invention is proposed in view of the problems existing in the prior art.

Therefore, the technical problem to be solved by the present invention is that the traditional encoder is separately connected to the motor shaft hardware, and there are problems of large vibration and large movement during operation, which affects the accuracy of the encoder, and at the same time, there is no spare encoder to switch, and the redundancy is poor. .

In order to solve the above technical problems, the present invention provides the following technical solutions: a stable encoder soft connector, which includes an encoding component, including a first encoder, a second encoder, a connecting rod, a damping connecting shaft and a base plate, so The connecting rod passes through the shaft centers of the first encoder and the second encoder and is connected with them, one end of the damping connecting shaft is connected with the connecting rod, and the other end is connected with the base plate; The base to which the connecting rod is attached.

As a preferred solution of the stable encoder soft connector of the present invention, the damping connecting shaft is provided with a communication groove, and the diameter of the communication groove is the same as the diameter of the connecting rod.

As a preferred solution of the stable encoder soft connector of the present invention, wherein: the base plate is provided with a round hole and a fixed shaft; the connecting rod is partially embedded in the communication groove at one end of the damping connecting shaft, so The diameter of the fixed shaft is the same as the diameter of the communication groove; the connecting rod is embedded in the communication groove, and the fixed shaft is embedded in the communication groove.

As a preferred solution of the stable encoder soft connector of the present invention, wherein: the base includes a first support base, a second support base and a support plate, and the first support base and the second support base structure The same and symmetrically arranged on both sides of the support plate.

As a preferred solution of the stable encoder soft connector of the present invention, wherein: a support groove is provided on the support plate; the connecting rod passes through the support groove and is horizontally erected on the base.

As a preferred solution of the stable encoder soft connector of the present invention, wherein: the support assembly further includes a first gimbal and a second gimbal, and the first gimbal and the second gimbal have the same structure and are It is vertically connected with the support plate by bolts; the first gimbal and the second gimbal are symmetrically arranged on both sides of the first encoder and the second encoder.

As a preferred solution of the stable encoder soft connector of the present invention, wherein: the first balance frame includes a fixed plate, a balance plate, a first adjustment slot and a second adjustment slot; the fixed plate and the balance plate Connected at a 90-degree angle, the fixing plate is fixedly connected to the base by bolts, the first adjusting slot is correspondingly arranged on the balance plate on the first encoder side, and the second adjusting slot is correspondingly arranged on the first encoder side. The balance board on the second encoder side.

As a preferred solution of the stable encoder soft connector of the present invention, wherein: the first gimbal further includes a first holding piece and a second holding piece, and the first holding piece and the second holding piece are structured The same; the first holding piece corresponds to the first adjustment groove and is fixed by bolts, and the second holding piece corresponds to the second adjustment groove and is fixed by bolts.

As a preferred solution of the stable encoder soft connector of the present invention, wherein: the first holding piece includes a fixing piece and a coaxial piece, and the fixing piece is fixedly connected to one end and the coaxial piece through bolts The connection and balance plate are fixed, the coaxial sheet is in a "sector-shaped" structure, and its diameter is the same as the diameter of the first encoder; a circular notch is provided on the coaxial sheet, and the diameter of the circular notch is matched with the connecting rod and The coaxial sheet is bolted to the first encoder.

As a preferred solution of the stable encoder soft connector of the present invention, it further includes a cover, the cover is sleeved on the support assembly, and a threaded rod is also provided on the support plate; the thread The rod is vertically connected with the support plate, and the threaded rod is threadedly connected with the cover.

Beneficial effects of the present invention:

1. The present invention enables the encoder to be installed independently of the main device by means of a soft connector, thereby reducing mechanical vibration.

2. The present invention is designed with a damping structure, so that the connection between the encoder and the transmission shaft is changed from a hard connection to a soft connection to prevent the encoder from being damaged by mechanical movement.

3. The present invention is designed to install dual encoders, and the program will automatically switch to the standby encoder when the encoder fails, so as to realize one use and one backup, which can be automatically switched and improve system redundancy.

4. Reduce the cost of spare parts, reduce the downtime, and reduce the work intensity of maintenance personnel.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort. in:

FIG. 1 is a structural diagram of an encoding component in the first embodiment.

FIG. 2 is a structural diagram of the support assembly in the first embodiment.

FIG. 3 is a structural diagram of the first gimbal in the second embodiment.

FIG. 4 is an overall view of the apparatus in the second embodiment.

Detailed ways

In order to make the above objects, features and advantages of the present invention more clearly understood, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Many specific details are set forth in the following description to facilitate a full understanding of the present invention, but the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can do so without departing from the connotation of the present invention. Similar promotion, therefore, the present invention is not limited by the specific embodiments disclosed below.

Second, reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of "in one embodiment" in various places in this specification are not all referring to the same embodiment, nor are they separate or selectively mutually exclusive from other embodiments.

Example 1

1 and 2, it is the first embodiment of the present invention, which provides a stable encoder soft connector, which includes an encoding component 100 and a support component 200, and effectively prevents mechanical vibration through the soft connection. effect on the encoder.

The encoding assembly 100 includes a first encoder 101, a second encoder 102, a connecting rod 103, a damping connecting shaft 104 and a base plate 105; the support assembly 200 includes a base 201, specifically, the first encoder 101 and the second encoder 102 is arranged on one side of the base 201, the base plate 105 is arranged on the other side of the base 201, the first encoder 101, the second encoder 102, the base plate 105 and the base 201 are connected by the connecting rod 103 and the damping connecting shaft 104 are connected together, and the connecting rod 103 passes through the shaft centers of the first encoder 101 and the second encoder 102, so that the shaft centers of the first encoder 101 and the second encoder 102 are sleeved on the connecting rod 103; the damping connecting shaft 104 A communication groove 104a is arranged inside, a circular hole 105a and a fixed shaft 105b are arranged on the base plate 105, the fixed shaft 105b is vertically connected to the base plate 105, and the diameters of the connecting rod 103 and the fixed shaft 105b are the same as the inner diameter of the damping connecting shaft 104; The connecting rod 103 is inserted into the communication groove 104a from one end of the damping connection shaft 104, and the fixed shaft 105b is inserted into the communication groove 104a from the other end of the damping connection shaft 104.

Further, the base plate 105 is "circular", and the round hole 105a can bolt the base plate 105 to the mechanical actuator on site; the overall height of the base 201 is greater than that of the first encoder 101, the second encoder 102 and the base plate 105 diameter, the upper half of the base 201 is a "semi-circle", and the lower half is a square structure. Specifically, the base 201 includes a first support base 201a, a second support base 201b and a support plate 201c, and the support plate 201c is provided with The support groove 201c-1, the support groove 201c-1 is connected upwards from the axial center, and is in a "U shape", and the connecting rod 103 passes through the support groove 201c-1 and is erected on the support groove 201c-1 to stably support the encoding assembly 100 effect.

Further, the first support base 201a and the second support base 201b have the same structure, and are symmetrically arranged on both sides of the square structure in the lower half of the base 201, and the first support base 201a and the second support base 201b are elongated structures, horizontal They are arranged on both sides of the base 201 and are vertically connected to the base 201. Specifically, the first support base 201a and the second support base 201b are connected to external equipment through bolts to ensure the fixation of the entire encoding assembly 100 and the support assembly 200.

Example 2

Referring to FIGS. 3 and 4 , it is a second embodiment of the present invention. This embodiment is based on the previous embodiment. The support assembly 200 further includes a first gimbal 202 and a second gimbal 203 .

The structures of the first gimbal 202 and the second gimbal 203 are the same. This embodiment only discusses the structure of the first gimbal 202. The first gimbal 202 and the second gimbal 203 relate to the first encoder 101 and the second encoder. 102 is symmetrical and bolted to the support plate 201c. Specifically, the first balance frame 202 includes a fixed plate 202a, a balance plate 202b, a first adjustment groove 202c and a second adjustment groove 202d; the fixed plate 202a is horizontally attached to the support plate 201c and The two are bolted together, one end of the balance plate 202b is fixedly connected to one end of the fixed plate 202a, and the two are 90 degrees perpendicular, and the balance plate 202b is kept horizontal with the first encoder 101 and the second encoder 102 in space.

Further, the first adjusting groove 202c and the second adjusting groove 202d are arranged on the balance plate 202b. Specifically, the first adjusting groove 202c and the second adjusting groove 202d have the same size, and are in the shape of an "ellipse" and are kept parallel. An adjustment slot 202c corresponds to the first encoder 101 , and a second adjustment slot 202d corresponds to the second encoder 102 .

Further, the first balance frame 202 further includes a first holding piece 202e and a second holding piece 202f, and the first holding piece 202e and the second holding piece 202f are respectively disposed corresponding to the first adjusting groove 202c and the second adjusting groove 202d, and at the same time, The first holding piece 202e and the second holding piece 202f have the same structure, and this embodiment only describes the structure of the first holding piece 202e.

Further, the first holding piece 202e includes a fixing piece 202e-1 and a coaxial piece 202e-2. Specifically, the fixing piece 202e-1 is horizontally attached to the balance plate 202b, and the fixing piece 202e-1 corresponds to the first adjusting groove 202. And the fixing piece 202e-1 is fixed by bolts on both sides of the first adjusting groove 202, and the positional relationship of the first holding piece 202e relative to the first encoder 101 can be adjusted by adjusting the horizontal position of the bolt in an adjusting groove 202; the same One end of the shaft piece 202e-2 is vertically connected with the fixed piece 202e-1, and the other end is in a “sector shape” structure. The diameter of the fan shape is the same as that of the first encoder 101. The diameters of the notch 202e-3 and the circular notch 202e-3 are the same as the diameter of the connecting rod 103, and the two are arranged coaxially. encoder 101.

The entire device further includes a cover 300, which is sleeved on the support assembly 200. Specifically, a threaded rod 201c-3 is also provided on the support plate 201c. One end of the threaded rod 201c-3 is vertically connected to the support plate 201c, and the other end extends outward. And it is screwed with the cover 300 .

When measuring the rotational speed or angle of the motor, the external mechanical structure can drive the base plate 105 to rotate around the fixed shaft 105b, and then drive the connecting rod 103 to rotate through the damping connecting shaft 104, and finally measure the rotational speed or angle by the encoder. The mechanical vibration caused by the rotation of the base plate 105 is eliminated by the damping connecting shaft 104 before being transmitted to the connecting rod 103. The present invention also sets two encoders to operate at the same time to improve the system redundancy. The encoder is installed in the soft connector. , independent of the host device.

It is important to note that the construction and arrangement of the present application shown in the various exemplary embodiments are merely exemplary. Although only a few embodiments have been described in detail in this disclosure, those who refer to this disclosure will readily appreciate that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application are possible (eg, changes in size, dimensions, structure, shape, and proportions of various elements, as well as parameter values (eg, temperature, pressure, etc.), mounting arrangement, use of materials, color, orientation, etc.). For example, elements shown as integrally formed may be constructed of multiple parts or elements, the positions of elements may be inverted or otherwise varied, and the nature or number or positions of discrete elements may be altered or varied. Accordingly, all such modifications are intended to be included within the scope of this invention. The order or sequence of any process or method steps may be varied or re-sequenced according to alternative embodiments. In the claims, any "mean-plus-function" clause is intended to cover the structures described herein as performing the recited function and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operation and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications still falling within the scope of the appended claims.

Furthermore, in order to provide a concise description of example embodiments, all features of an actual implementation (ie, those that are not relevant to the best mode currently considered for carrying out the invention, or those that are not relevant for carrying out the invention, may not be described in order to provide a concise description of example embodiments) feature).

It should be appreciated that during the development of any actual implementation, such as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but would be a routine undertaking of design, fabrication, and production without undue experimentation for those of ordinary skill having the benefit of this disclosure .

It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be Modifications or equivalent substitutions without departing from the spirit and scope of the technical solutions of the present invention should be included in the scope of the claims of the present invention.

Claims (10)

1. a stable encoder soft connector is characterized in that: comprising, An encoding assembly (100) includes a first encoder (101), a second encoder (102), a connecting rod (103), a damping connecting shaft (104) and a base plate (105), the connecting rod (103) passing through Passing through the shaft centers of the first encoder (101) and the second encoder (102) and connecting them, one end of the damping connecting shaft (104) is connected to the connecting rod (103), and the other end is connected to the base plate (105) );as well as, A support assembly (200) includes a base (201) connected with the connecting rod (103). 2 . The stable encoder soft connector according to claim 1 , wherein the damping connecting shaft ( 104 ) is provided with a communication groove ( 104 a ), and the diameter of the communication groove ( 104 a ) is the same as that of the connecting rod ( 103 ). 3 . The diameter is the same. 3. The stable encoder soft connector according to claim 2, characterized in that: the base plate (105) is provided with a circular hole (105a) and a fixed shaft (105b); The connecting rod (103) is partially embedded in the communication groove (104a) at one end of the damping connecting shaft (104), and the diameter of the fixed shaft (105b) is the same as the diameter of the communication groove (104a); The connecting rod (103) is embedded in the communication groove (104a), and the fixed shaft (105b) is embedded in the communication groove (104a). 4. The stable encoder soft connector according to claim 3, wherein the base (201) comprises a first support base (201a), a second support base (201b) and a support plate (201c) , the first support base (201a) and the second support base (201b) have the same structure and are symmetrically arranged on both sides of the support plate (201c). 5. The stable encoder soft connector according to claim 1, wherein a support groove (201c-1) is provided on the support plate (201c); The connecting rod (103) passes through the supporting groove (201c-1) and is horizontally erected on the base (201). 6. The stable encoder soft connector according to claim 5, characterized in that: the support assembly (200) further comprises a first gimbal (202) and a second gimbal (203), the first gimbal (203) The gimbal (202) and the second gimbal (203) have the same structure and are vertically bolted to the support plate (201c); The first gimbal (202) and the second gimbal (203) are symmetrically arranged on both sides of the first encoder (101) and the second encoder (102). 7. The stable encoder soft connector according to claim 6, wherein the first balance frame (202) comprises a fixing plate (202a), a balance plate (202b), and a first adjusting groove (202c) and the second adjustment groove (202d); The fixing plate (202a) and the balance plate (202b) are connected at ninety degrees, the fixing plate (202a) is fixedly connected to the base (201) by bolts, and the first adjusting groove (202c) corresponds to The second adjusting groove (202d) is correspondingly arranged on the balance plate (202b) on the side of the second encoder (102), and is arranged on the balance plate (202b) on the side of the first encoder (101). 8. The stable encoder soft connector according to claim 3, wherein the first gimbal (202) further comprises a first holding piece (202e) and a second holding piece (202f), the The first holding piece (202e) and the second holding piece (202f) have the same structure; The first holding piece (202e) corresponds to the first adjusting groove (202c) and is fixed by bolts, and the second holding piece (202f) corresponds to the second adjusting groove (202d) and is fixed by bolts. 9. The stable encoder soft connector according to claim 8, wherein the first holding piece (202e) comprises a fixing piece (202e-1) and a coaxial piece (202e-2). The fixing plate (202e-1) is fixedly connected to one end with the coaxial plate (202e-2) and the balance plate (202b) by means of bolts, and the coaxial plate (202e-2) has a “sector-shaped” structure, which The diameter is the same as the diameter of the first encoder (101); A circular notch (202e-3) is provided on the coaxial sheet (202e-2), the diameter of the circular notch (202e-3) is matched with the connecting rod (103), and the coaxial sheet (202e-2) Bolt connection with the first encoder (101). 10 . The stable encoder soft connector according to claim 9 , further comprising a cover ( 300 ), the cover ( 300 ) being sleeved on the support assembly ( 200 ), and the support A threaded rod (201c-3) is also provided on the plate (201c); The threaded rod (201c-3) is vertically connected with the support plate (201c), and the threaded rod (201c-3) is threadedly connected with the cover (300).

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