Encoder detection device

Abstract

The encoder detection device comprises an adjustable-speed motor, a base, an encoder and a reader, and the adjustable-speed motor is provided with an output shaft; the base is fixedly mounted on the speed regulating motor; the encoder is installed in the base and provided with a driven shaft, the driven shaft and the output shaft are limited in the circumferential direction, and the driven shaft can be driven by the output shaft to rotate; the reader is electrically connected with the encoder and used for reading the rotating speed of the driven shaft so that a user can obtain the rotating speed. According to the encoder detection device, the encoder, the base and the adjustable-speed motor are fixedly installed in sequence, the device is simple and convenient to install, meanwhile, the speed adjusting function of the adjustable-speed motor is achieved, the use requirement for encoder rotating speed detection when the encoder detection device works is met, and the encoder detection device has the functions of being low in manufacturing cost, easy to operate and high in detection efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field related to encoder detection, and particularly relates to an encoder detection device. Background Art

[0002] An encoder is a commonly used electronic component. The function of an encoder is to convert an analog signal into a digital signal or encode a digital signal. Among them, the main function of an encoder is to analyze and process the input signal and convert it into a digital signal for processing and storage in a digital system; at the same time, the encoder also has the function of converting a digital signal from one encoding method to another encoding method. Therefore, in modern digital systems, encoders play a very important role and are widely used in systems such as computers, industrial automation control, robots, and instrumentation to provide digital input or output signals for these systems.

[0003] During the production process of an encoder, it is necessary to detect functions such as the rotation speed, communication, signal strength, and accuracy of the encoder. Currently, the detection devices used for detecting the functions of encoders on the market are usually full-function detection devices. For the full-function detection of encoders, it is indeed much more convenient. However, during the production process of encoders, most of them are installed and debugged at a single station, and only after detecting that one or more functions are qualified can they flow to the next station for further installation and debugging until the full-function detection is qualified and then stored in the warehouse. If only the rotation speed detection of the encoder is required, using the above full-function detection device will result in problems such as excessive equipment cost investment, too long detection time, and waste of local functions of the equipment, greatly increasing the production cost. Summary of the Utility Model

[0004] In view of this, it is necessary to provide an encoder detection device that can and can only detect the rotation speed of an encoder.

[0005] An encoder detection device, the encoder detection device includes:

[0006] A speed control motor having an output shaft;

[0007] A base fixedly installed on the speed control motor;

[0008] An encoder installed in the base, the encoder having a driven shaft, the driven shaft being circumferentially limited to the output shaft, and the driven shaft being able to rotate under the drive of the output shaft;

[0009] A reader electrically connected to the encoder for reading the rotation speed of the driven shaft for the user to obtain.

[0010] It can be understood that through the above-mentioned structural setting, the encoder, base and speed control motor are fixedly installed in sequence, the device is simple and easy to install, and the speed control motor itself has the function of adjustable speed to meet the use requirements of the encoder speed detection when the encoder detection device is working. It has the functions of low manufacturing cost, simple operation and high detection efficiency.

[0011] In one embodiment, the encoder detection device further comprises a joint, and the driven shaft can be drivingly connected to the output shaft through the joint;

[0012] Wherein, the output shaft, the joint and the driven shaft are coaxial.

[0013] It can be understood that a joint is used to realize the transmission connection between the driven shaft and the output shaft, which can facilitate the assembly connection between the driven shaft and the output shaft, so that the output shaft can directly drive the driven shaft to rotate through the joint when rotating, so as to meet the use requirements of the encoder speed detection.

[0014] In one embodiment, a groove is provided on the joint, and the driven shaft is plugged into and matched with the groove, so that the driven shaft and the joint are tightly matched;

[0015] Wherein, the driven shaft extends downward along the vertical direction.

[0016] It can be understood that, through the above-mentioned structural setting, the driven shaft can use the gravity of the encoder itself to achieve a tight fit with the joint, so that on the basis of satisfying the joint to drive the driven shaft to rotate, it is convenient for the assembly connection between the driven shaft and the joint on the encoder.

[0017] In one embodiment, the groove is configured as a conical structure.

[0018] It can be understood that the tapered structural feature of the groove can facilitate the alignment of the driven shaft with the groove when inserted into the joint groove, thereby further facilitating the assembly connection between the driven shaft and the joint on the encoder.

[0019] In one embodiment, the connector is connected to the output shaft in a threaded manner.

[0020] It can be understood that the joint is connected to the output shaft in a threaded manner, which facilitates the assembly connection between the joint and the output shaft.

[0021] In one embodiment, a tensioning ring is mounted on the encoder, the tensioning ring is disposed between the encoder and the base, and the tensioning ring can be expanded to fix the encoder in the base.

[0022] It can be understood that by using the expansion of the tension ring under an external force, the encoder is assembled and fixed in the base, which can ensure the stability of the power transmission between the driven shaft and the output shaft.

[0023] In one embodiment, a notch is formed on the tension ring;

[0024] Wherein, the encoder detection device further includes a support block and an adjusting screw. The support block is arranged in the notch and is screwed with the adjusting screw, and the support block can push against the notch wall of the notch under the drive of the adjusting screw to expand the tension ring.

[0025] It can be understood that through the above structural arrangement, the user can drive the tension ring to expand by screwing the adjusting screw, and the operation is simple, so as to facilitate the fixing of the encoder in the base.

[0026] In one embodiment, a motor mounting plate is provided on the speed regulating motor;

[0027] Wherein, the base can be inserted and matched with the motor mounting plate.

[0028] It can be understood that by using the insertion and matching between the base and the motor mounting plate, the assembly positioning of the base between the motor mounting plates can be realized, and the stability and accuracy of the base during assembly on the motor mounting plate can be ensured, which creates conditions for the subsequent assembly connection between the driven shaft and the output shaft on the encoder.

[0029] In one embodiment, a motor mounting plate is provided on the speed regulating motor;

[0030] Wherein, the encoder detection device further includes a fixing member for fixing the base to the motor mounting plate.

[0031] In one embodiment, the encoder detection device further includes a speed regulator, which is electrically connected to the speed regulating motor and is used to adjust the rotational speed of the output shaft of the speed regulating motor.

[0032] It can be understood that using a speed regulator to control the rotational speed of the output shaft of the speed regulating motor can facilitate the user to control the rotational speed of the output shaft of the speed regulating motor to meet the use requirements for the rotational speed detection of the encoder.

[0033] Due to the application of the above technical solutions, the present utility model has the following advantages compared with the prior art:

[0034] The encoder detection device for which protection is sought in the present application has an encoder, a base and a speed regulating motor which are fixedly installed in sequence. The device is simple and easy to install. The speed regulating motor itself has an adjustable speed function to meet the requirements for encoder speed detection when the encoder detection device is working. The device has the functions of low manufacturing cost, simple operation and high detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0036] Figure 1 A schematic diagram of the structure of an encoder detection device provided in one embodiment of the present application.

[0037] Figure 2 This is an exploded view of an encoder detection device provided in one embodiment of the present application.

[0038] Figure 3 This is a schematic diagram of the structure when the speed regulating motor and the speed regulator are assembled and connected in this application.

[0039] Figure 4 It is a schematic diagram of the structure of the base in this application.

[0040] Figure 5 This is a schematic diagram of the structure of the encoder, tensioning ring, adjusting screw and expansion assembly in this application.

[0041] Figure 6 It is a schematic diagram of the structure of the joint in this application.

[0042] : 100, encoder detection device; 10, speed control motor; 11, output shaft; 111, threaded mounting hole; 12, motor mounting plate; 121, positioning boss; 13, speed regulator; 20, base; 21, positioning groove; 22, threaded hole; 30, encoder; 31, driven shaft; 40, reader; 50, joint; 51, screw; 52, groove; 60, tension ring; 61, incision; 611, incision wall; 71, support block; 72, adjusting screw. DETAILED DESCRIPTION

[0043] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0044] It should be noted that when an element is referred to as being "provided on" another element, it can be directly provided on the other element or there may also be an intermediate element. When an element is considered to be "provided on" another element, it can be directly provided on the other element or there may be an intermediate element at the same time. When an element is considered to be "fixed to" another element, it can be directly fixed to the other element or there may be an intermediate element at the same time.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model are only for the purpose of describing specific embodiments, and are not intended to limit this utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0046] The encoder detection device 100 claimed in this application can and can only detect the rotational speed of the encoder 30.

[0047] As Figure 1 、 Figure 2 shown, the encoder detection device 100 provided in an embodiment of this application includes a speed control motor 10, a base 20, an encoder 30, and a reader 40. The speed control motor 10 has an output shaft 11; the base 20 is fixedly installed on the speed control motor 10; the encoder 30 is installed in the base 20. The encoder 30 has a driven shaft 31. Here, the driven shaft 31 is a driven structure relative to the output shaft 11 of the speed control motor 10, and the driven shaft 31 itself belongs to the rotating shaft of the encoder 30; the driven shaft 31 is circumferentially limited to the output shaft 11, and the driven shaft 31 can rotate under the drive of the output shaft 11; the reader 40 is electrically connected to the encoder 30 and is used to read the rotational speed of the driven shaft 31 for the user to obtain. Here, the encoder 30 is the encoder to be detected by the encoder detection device 100, and the rotational speed of the output shaft 11 of the above-mentioned speed control motor 10 can be adjusted during operation to meet the use requirement of detecting the rotational speed of the encoder 30. It should be noted that the specific structure of the above-mentioned reader 40 and the working principle of how to obtain and display the rotational speed of the driven shaft 31 on the encoder 30 during operation can both adopt existing conventional methods, and will not be elaborated here.

[0048] It can be understood that in the encoder detection device 100, the encoder 30, the base 20, and the speed control motor 10 are fixedly installed in sequence. The device is simple and convenient to install. At the same time, the speed control motor 10 has its own speed adjustment function to meet the use requirements for detecting the rotation speed of the encoder 30 when the encoder detection device 100 is working. It has the functions of low manufacturing cost, simple operation, and high detection efficiency.

[0049] As can be seen from the above, the rotation speed of the output shaft 11 of the speed control motor 10 can be set according to the use requirements. For example, the rotation speed of the output shaft 11 is set to 100 revolutions per minute, then the speed control motor 10 is started, and the output shaft 11 drives the driven shaft 31 to rotate synchronously. Then, the user can view the rotation speed information of the driven shaft 31 on the encoder 30 obtained on the reader 40. Assuming that the data on the reader 40 jumps between 99 - 101 revolutions per minute, and assuming that the rotation speed jump within ±1% is considered qualified in terms of accuracy, then it can be determined that the accuracy of the encoder 30 is qualified. It should be noted that if there is data displayed on the reader 40, it means that the encoder 30 communicates normally; if the rotation speed displayed on the reader 40 is stable and the fluctuation range is stable, it means that the encoder 30 is installed qualified; if the rotation speed fluctuation range of the reader 40 is within the error range, it means that the accuracy of the encoder 30 is qualified. It should be noted that the encoder detection device 100 can perform rotation speed tests such as low speed, medium speed, high speed, etc. on the encoder 30 or other additional rotation speed tests.

[0050] As Figure 2 、 Figure 3 shown, a motor mounting plate 12 is provided on the speed control motor 10, and the speed control motor 10 can carry the base 20 with the motor mounting plate 12 to meet the use requirements for the assembly of the base 20 on the speed control motor 10.

[0051] As Figures 1 to 3 shown, the encoder detection device 100 further includes a speed governor 13. The speed governor 13 is electrically connected to the speed control motor 10 and is used to adjust the rotation speed of the output shaft 11 on the speed control motor 10, so that the user can control the rotation speed of the output shaft 11 on the speed control motor 10 by operating the speed governor 13. This can facilitate the user to control the rotation speed of the output shaft 11 on the speed control motor 10 to meet the use requirements for detecting the rotation speed of the encoder 30. Here, the speed control motor 10 can be a servo motor, a stepper motor, etc. It should be noted that the specific structure of the above speed governor 13 and the working principle of how to control the rotation speed of the output shaft 11 on the speed control motor 10 during operation can both adopt existing conventional methods, and will not be elaborated here.

[0052] As Figure 1 、 Figure 2As shown, the base 20 can be plugged into and matched with the motor mounting plate 12, and thereby the base 20 can be assembled and positioned between the motor mounting plate 12, and the stable accuracy of the base 20 when assembled on the motor mounting plate 12 can be ensured, thereby creating conditions for the subsequent assembly connection between the driven shaft 31 and the output shaft 11 on the encoder 30.

[0053] As preferably, Figure 3 , Figure 4 As shown, a positioning groove 21 is provided on the base 20, and a positioning boss 121 is formed on the motor mounting plate 12. The positioning boss 121 can be plugged into and matched with the positioning groove 21, so that the base 20 can be assembled on the motor mounting plate 12. Of course, in other embodiments, a positioning boss can also be provided on the base 20, and a positioning groove can be provided on the motor mounting plate 12, which will not be elaborated here.

[0054] In addition, the encoder detection device 100 further includes a fixing member (not shown), which is used to fix the base 20 to the motor mounting plate 12 and realize the assembly and fixation of the base 20 on the motor mounting plate 12. Here, the fixing member is configured as a bolt, a screw, etc., and the fixing member can be specifically connected to the threaded hole 22 on the base 20 after passing through the motor mounting plate 12. Of course, in other embodiments, the fixing member is also connected to the base 20 in a tight fit after passing through the motor mounting plate 12, or the assembly and fixation of the base 20 on the motor mounting plate 12 is realized by welding, clamping, etc.

[0055] like Figure 2 , Figure 6 As shown, the encoder detection device 100 further includes a joint 50, through which the driven shaft 31 can be transmission-connected to the output shaft 11; wherein the output shaft 11, the joint 50 and the driven shaft 31 are coaxial. In other words, the driven shaft 31 and the output shaft 11 are specifically transmission-connected by the joint 50, which facilitates the assembly connection between the driven shaft 31 and the output shaft 11; so that when the output shaft 11 rotates, it can directly drive the driven shaft 31 to rotate through the joint 50, so as to meet the use requirements of the encoder 30 speed detection.

[0056] like Figure 2 As shown, the connector 50 is connected to the output shaft 11 in a threaded manner, and the connector 50 and the output shaft 11 are assembled and connected. In this way, the connector 50 and the output shaft 11 are assembled and connected by the threaded matching structure. Here, a screw 51 is formed on the connector 50, and a threaded mounting hole 111 matching the screw 51 is formed on the output shaft 11, and the screw 51 can be threadedly connected with the threaded mounting hole 111. It can be understood that in other embodiments, the connector 50 can also be sleeved on the output shaft 11 and threadedly connected with the output shaft 11.

[0057] As shown in Figure 2 , Figure 6 , a groove 52 is formed in the joint 50. The driven shaft 31 extends vertically downward. The driven shaft 31 is inserted into the groove 52 in a plug-in fit manner and is tightly fitted with the joint 50. In this way, the driven shaft 31 can utilize the gravity of the encoder 30 itself to achieve a tight fit with the joint 50. On the basis of satisfying the rotation of the driven shaft 31 driven by the joint 50, it is convenient for the assembly connection between the driven shaft 31 and the joint 50 on the encoder 30. Here, the driven shaft 31 is in close contact with the groove 52 and has a slight interference fit, and the groove wall of the groove 52 is set as a rough surface, so that a large static friction force can be formed between the driven shaft 31 and the groove wall of the groove 52 after the driven shaft 31 is inserted into the groove 52.

[0058] Preferably, as shown in Figure 6 , the groove 52 is configured as a conical structure. That is to say, the groove 52 on the joint 50 is set as a conical groove. By utilizing the structural characteristics of the conical groove 52, it is convenient for the alignment between the driven shaft 31 and the groove 52 when the driven shaft 31 is inserted into the groove 52 of the joint 50, thereby further facilitating the assembly connection between the driven shaft 31 and the joint 50 on the encoder 30.

[0059] As shown in Figure 5 , a tensioning ring 60 is sleeved on the encoder 30. The tensioning ring 60 is arranged between the encoder 30 and the base 20, and the tensioning ring 60 can be expanded to fix the encoder 30 in the base 20. That is to say, the encoder 30 can be assembled and fixed to the base 20 through the expanded tensioning ring 60, so as to ensure the stability of the power transmission between the driven shaft 31 and the output shaft 11.

[0060] Preferably, as shown in Figure 5 , a notch 61 is formed in the tensioning ring 60. Among them, the encoder detection device further includes a support block 71 and an adjusting screw 72. The support block 71 is arranged in the notch 61 and is screwed with the adjusting screw 72, and the support block 71 can push against the notch wall 611 of the notch 61 under the drive of the adjusting screw 72 to expand the tensioning ring 60. So that the user can drive the tensioning ring 60 to expand by screwing the adjusting screw 72, and the operation is simple, so as to facilitate the fixing of the encoder 30 in the base 20. Here, the support block 71 is configured as a wedge-shaped structure, so that the support block 71 can push the two symmetrical notch walls 611 outwards under the drive of the adjusting screw 72 to expand the tensioning ring 60. It should be noted that two support blocks 71 are screwed on the adjusting screw 72 at the same time.

[0061] In summary, when the encoder detection device 100 of the present application is working, the reader 40 can read the rotational speed of the driven shaft 31 on the encoder 30, and compare it with the setting of the rotational speed of the output shaft 11 when the speed regulating motor 10 is working by the speed governor 13, so as to achieve the purpose of detecting whether the rotational speed of the encoder 30 is qualified.

[0062] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered to be within the scope described in this specification.

[0063] Those of ordinary skill in the art of this technology should recognize that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. As long as it is within the scope of the essential spirit of the present invention, the appropriate changes and variations made to the above embodiments fall within the scope of protection required by the present invention.

Claims

1. An encoder detection device, characterized in that: The encoder detection device (100) comprises: A speed regulating motor (10) having an output shaft (11); A base (20) is fixedly mounted on the speed regulating motor (10); An encoder (30) is installed in the base (20), the encoder (30) has a driven shaft (31), the driven shaft (31) and the output shaft (11) are circumferentially limited, and the driven shaft (31) can rotate under the drive of the output shaft (11); The reader (40) is electrically connected to the encoder (30) and is used to read the rotation speed of the driven shaft (31) for acquisition by a user.

2. The encoder detection device according to claim 1, characterized in that: The encoder detection device (100) further comprises a joint (50), and the driven shaft (31) can be transmission-connected to the output shaft (11) via the joint (50); Wherein, the output shaft (11), the joint (50) and the driven shaft (31) are coaxial.

3. The encoder detection device according to claim 2, characterized in that: The joint (50) is provided with a groove (52), and the driven shaft (31) is plugged into and matched with the groove (52), so that the driven shaft (31) and the joint (50) are tightly matched; Wherein, the driven shaft (31) extends downward along the vertical direction.

4. The encoder detection device according to claim 3, characterized in that: The groove (52) is configured as a tapered structure.

5. The encoder detection device according to claim 2, characterized in that: The joint (50) is connected to the output shaft (11) in a threaded manner.

6. The encoder detection device according to claim 1, characterized in that: The encoder (30) is provided with a tensioning ring (60), which is arranged between the encoder (30) and the base (20), and the tensioning ring (60) can be expanded to fix the encoder (30) in the base (20).

7. The encoder detection device according to claim 6, characterized in that: The tension ring (60) is provided with a notch (61); The encoder detection device (100) further comprises a support block (71) and an adjusting screw (72), wherein the support block (71) is arranged in the incision (61) and is threadedly connected to the adjusting screw (72), and the support block (71) can push the incision wall (611) of the incision (61) under the drive of the adjusting screw (72) to open the tensioning ring (60).

8. The encoder detection device according to claim 1, characterized in that: The speed regulating motor (10) is provided with a motor mounting plate (12); Wherein, the base (20) can be plug-fitted with the motor mounting plate (12).

9. The encoder detection device according to claim 1, characterized in that: The speed regulating motor (10) is provided with a motor mounting plate (12); Wherein, the encoder detection device (100) further comprises a fixing member, and the fixing member is used to fix the base (20) to the motor mounting plate (12).

10. The encoder detection device according to claim 1, characterized in that: The encoder detection device (100) further comprises a speed regulator (13), wherein the speed regulator (13) is electrically connected to the speed regulating motor (10) and is used to adjust the rotation speed of an output shaft (11) on the speed regulating motor (10).

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