CN202648690U - Encoder life test device - Google Patents

Abstract

The utility model relates to a device which is capable of controlling the rotational speed and the rotational direction of an encoder and performing comparison tests on a plurality of encoders at the same time. A test bench is fixed on a base, a PLC controller and a frequency converter are installed on the base, a plurality of spindles are rotatably installed on the test bench, a passive driving wheel is fixed on the upper end portion of each spindle, a driving motor is installed on the test bench, an active driving wheel is fixed on the output shaft of the driving motor, a driving belt is arranged on the active driving wheel and the passive driving wheels, the driving motor is connected with the frequency converter through wires, and the frequency converter is connected with the PLC controller through wires. According to the utility model, the advantage of easy operation is realized, a supporting bearing is adopted so as to avoid the encoders being affected by the radial force in the process of rotation, and the frequency converter is connected to the device so as to maintain the rotational speed of the motor in a range, so that the device can be used to satisfy encoders having different rotational speed requirements. Thus, according to the test device, not only the actual working condition is simulated, but also the life test can be performed on a plurality of encoders at the same time, so the space occupancy and the test cost are greatly reduced.

Description

Encoder life test device

technical field

The utility model belongs to the technical field of mechanical product testing, in particular to a device capable of controlling the rotational speed and steering of encoders and performing comparative tests on multiple encoders at the same time.

Background technique

With the development of industrial technology in recent years, most equipment is developing towards automatic control and precision machining. As an encoder in the control unit, it is very important, and the life of the bearing in the encoder directly affects the life of the entire control unit. . Therefore, the quality requirements of bearings required by these industries are getting higher and higher, and the position of bearing life and performance in bearing quality is becoming more and more important. In order to meet the needs of this development, we have designed a new bearing life test device.

Contents of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art and provide an encoder life test device with simple structure, good contrast and strong operability.

According to the technical scheme provided by the utility model, the encoder life test device has a test bench fixed on the base, a PLC controller and a frequency converter are installed on the base, and several rotating shafts are installed on the test bench. The axes of any two rotating shafts are arranged in parallel, the upper end of the rotating shaft is located above the test bench, the lower end of the rotating shaft is located below the test bench, a passive transmission wheel is fixed on the upper end of the rotating shaft, and a drive motor is installed on the test bench , the output shaft of the driving motor is fixed with a driving drive wheel, and a transmission belt is arranged on the driving driving wheel and the passive driving wheel, and all the passive driving wheels are driven by the same driving driving wheel; the driving motor is connected to the frequency converter through a wire, The frequency converter is connected with the PLC controller through wires.

Two rows of inner and outer rotating shafts are rotatably installed on the test stand, and the driving drive wheel is arranged on the left side between the inner and outer two rows of rotating shafts.

The utility model is easy to operate, adopts support bearings to prevent the encoder from being affected by radial force when rotating, and is connected with a frequency converter so that the motor speed is within a range, which can meet encoders with different speed requirements. Therefore, this test device not only simulates the actual working conditions, but also multiple life tests can be done at the same time, which greatly saves space and test costs. Doing multiple encoder tests on one test device reduces the amount of variation in the test process, has strong contrast, and the test results are more real and reliable.

Description of drawings

Fig. 1 is the structural front view of the present invention.

Fig. 2 is a partial sectional view of the present invention.

Fig. 3 is a top view of the test bench in Fig. 1 .

Detailed ways

Below in conjunction with specific accompanying drawing and embodiment the utility model is further described.

As shown in the figure, the utility model is mainly composed of a base 1, a PLC controller 2, a frequency converter 3, a bolt 4, a test bench 5, a test encoder 6, a transmission belt 7, a passive transmission wheel 8, a wire 9, a nut 10, a rotating shaft 11, driving motor 12, driving drive wheel 13 and support bearing 14 etc. parts constitute.

In this encoder life test device, a test bench 5 is fixed on the base 1, a PLC controller 2 (that is, a programmable controller) and a frequency converter 3 are installed on the base 1, and several rotating devices are installed on the test bench 5. One rotating shaft 11, the axis of any two rotating shafts 11 is arranged in parallel, the upper end of the rotating shaft 11 is located above the test bench 5, the lower end of the rotating shaft 11 is located below the test bench 5, and the upper end of the rotating shaft 11 is fixed with a passive transmission wheel 8. A driving motor 12 is installed on the test bench 5, and the output shaft of the driving motor 12 is fixed with a driving drive wheel 13, and a transmission belt 7 is arranged on the driving driving wheel 13 and the passive driving wheel 8, and all the passive driving wheels 8 Both are driven by the same driving drive wheel 13; the drive motor 12 is connected to the frequency converter 3 through a wire 9, and the frequency converter 3 is connected to the PLC controller 2 through a wire 9.

Two inner and outer rows of rotating shafts 11 are rotatably installed on the test bench 5 , and the driving drive wheel 13 is arranged on the left side between the inner and outer two rows of rotating shafts 11 .

The present invention is mainly composed of a base 1, a test stand 5 and an electrical unit. The PLC controller 2 and the frequency converter 3 are installed on the base 1 and connected to the drive motor 12 by the wire 9, the drive motor 12 is installed in the corresponding hole of the test bench 5 through the bolt 4, and the driving drive wheel 13 is installed on the drive through the key. In the keyway at one end of the motor 12, an electrical unit is formed. The test bench 5 is mounted on the base 1 by bolts 4 and is rigidly connected. The rotating shaft 11 is installed on the test bench 5 through the support bearing 14. One end of the rotating shaft 11 is installed with a passive transmission wheel 8 and fastened by a nut 10. The other end is installed with a test encoder 6. The entire test bench 5 can be equipped with 10 test benches at the same time. Encoder. The driving belt 7 bypasses the driving driving wheel 13 and the passive driving wheel 8 through different winding methods, so that the driving motor 12 drives the test encoder 6 to rotate.

In actual operation, different rotating shafts 11 are replaced according to different test encoders 6 .

The PLC controller 2, the frequency converter 3 and the driving motor 12 are sequentially connected through the wire 9 to realize the action of controlling the mechanical mechanism. Connect to the PLC controller 2 through a 220V wire to control the forward and reverse rotation of the drive motor 12 and the dwell interval of the drive motor 12; the wire 9 is then connected to the frequency converter 3 to control the speed of the drive motor 12 to meet different speeds The life test under the condition; Finally connect a driving motor 12 through the wire 9, and this driving motor 12 is the driving device of the mechanical mechanism.

The mechanical mechanism includes a base 1 , a test stand 5 , a support bearing 14 , various types of rotating shafts 11 , bolts 4 and a transmission belt 7 . Various types of rotating shafts 11 are installed on the test bench 5 through support bearings 14. One end of the rotating shaft 11 is installed with a passive transmission wheel 8 using a nut 10, and the other end is installed with a test encoder 6. The test bench 5 is installed on the base through bolts 4. 1 on.

The driving motor 12 is installed on the test bench 5, and drives all the test encoders 6 to rotate through the transmission belt 7.

Claims (2)

1. scrambler life test apparatus, it is characterized in that: be fixed with test-bed (5) at base (1), at base (1) PLC controller (2) and frequency converter (3) are installed, be rotatablely equipped with some rotating shafts (11) at test-bed (5), the axis of any two rotating shafts (11) is set in parallel, the upper end of rotating shaft (11) is positioned at the top of test-bed (5), the lower end of rotating shaft (11) is positioned at the below of test-bed (5), be fixed with passive power wheel (8) in the upper end of rotating shaft (11), at test-bed (5) drive motor (12) is installed, be fixed with initiative driver (13) on the output shaft of drive motor (12), be provided with driving-belt (7) at initiative driver (13) and passive power wheel (8), all passive power wheels (8) drive by same initiative driver (13); Described drive motor (12) links to each other by wire (9) with frequency converter (3), and frequency converter (3) links to each other by wire (9) with PLC controller (2).

2. scrambler life test apparatus as claimed in claim 1 is characterized in that: be rotatablely equipped with inside and outside two row's rotating shafts (11) at test-bed (5), described initiative driver (13) is arranged on the leftward position between inside and outside two row's rotating shafts (11).

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