Encoder reliability test device

Abstract

The utility model relates to the field of encoders, and discloses an encoder reliability test device which comprises a test box and a frame base, one side face of the test box is fixedly connected with one face of the frame base, the open face of the test box is arranged to be the front face of the test box, and a conveying structure is arranged between the frame base and the test box. An encoder is placed on the conveying structure, a variable test structure corresponding to the encoder and the conveying structure is arranged in the test box, a heating system, a refrigerating system and a vibrator are integrated, various stress comprehensive action scenes such as high temperature, low temperature and vibration possibly faced by the encoder in actual work can be simulated, the test environment is closer to the real working condition, and the test efficiency is improved. Therefore, comprehensive and effective data support is provided for optimization design and quality improvement of the encoder, and production of more reliable encoder products with more excellent performance is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of encoder, concretely is a kind of encoder reliability test device. BACKGROUND

[0002] Encoder is a kind of precision measuring device that converts mechanical displacement information (such as angle, linear displacement, etc.) into electrical signal, plays a key role in many fields such as industrial automation, intelligent equipment, aerospace, etc., and the encoder reliability test aims to comprehensively evaluate the ability of the encoder to continuously, stably and accurately operate under different working conditions and environments, to provide key basis for its design optimization, quality control and practical application, to simulate various harsh environments that the encoder may face, such as high-temperature workshop, cold outdoor, high-humidity coastal area, etc., to investigate its working performance under different temperature, humidity, vibration, electromagnetic interference, etc., to determine its tolerance limit.

[0003] Most test devices have single function, can only test encoder under single environmental factor or performance index, cannot simulate the comprehensive action scene of multiple stresses that encoder may face under complex and changeable actual working conditions, in actual working environment, encoder may be affected by high temperature, low temperature and vibration at the same time, while traditional test device is difficult to meet the demand of collaborative test of multiple factors at the same time, resulting in large deviation between test result and actual use, which cannot provide comprehensive and effective data support for optimization design and quality improvement of encoder, therefore we propose a kind of encoder reliability test device. UTILITY MODEL CONTENT

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides an encoder reliability test device, which solves the above problems.

[0006] (II) Technical scheme

[0007] To achieve the above purpose, the utility model provides the following technical scheme: an encoder reliability test device, comprising a test box and a frame base, one side of the test box is fixedly connected with the frame base, one side of the frame base is fixedly connected with the test box, the opening side of the test box is provided as the front of the test box, a conveying structure is arranged between the frame base and the test box, an encoder is placed on the conveying structure, and a variable test structure is arranged in the test box corresponding to the encoder and the conveying structure.

[0008] Preferably, four equidistantly distributed heat insulation plates two are fixedly connected between the side walls in the test box, the test box is divided into five parts by the heat insulation plates two, square holes are formed through the two sides of the test box corresponding in parallel to the heat insulation plates two, and the square holes penetrate the test box and the heat insulation plates two.

[0009] Preferably, the conveying structure comprises support plates, motors, synchronous wheels, rotating shafts and synchronous belts, two support plates are fixedly connected to the two sides of the frame base corresponding to the square holes, the square hole on one side of the test box is between the two support plates of the frame base, rotating shafts are rotatably connected between the two support plates of the frame base through bearing seats, the two ends of the rotating shafts penetrate through the support plates and are outside the support plates, two synchronous wheels are fixedly connected to the cylindrical surface of the rotating shafts, the two synchronous wheels are between the support plates and close to the two sides of the support plates, a synchronous belt is sleeved and connected to the outer surfaces of the four synchronous wheels, the synchronous belt penetrates through the square holes of the test box and the temperature insulation plate two in the test box, and the synchronous belt penetrates through the frame base between the frame base, the main body of the motor is fixedly connected to one of the support plates, and the output shaft of the motor is coaxially fixedly connected to the corresponding rotating shaft penetrating through the support plate.

[0010] Preferably, the test box is fixedly connected between the openings on one side, the cover plate is provided with an insertion hole penetratingly arranged at the middle position of the outer side of the test box, the insertion hole corresponds to the two middle temperature insulation plates two, and the movable door plate structure is installed on the outer side of the cover plate corresponding to the insertion hole.

[0011] Preferably, the variable test structure comprises slots, conveying holes and temperature insulation plates one, one side of the temperature insulation plate two provided with the square hole is provided with a conveying hole penetratingly arranged, the conveying hole is above the synchronous belt and is attached to the synchronous belt on one side, the top surface of the test box is provided with a slot corresponding to the temperature insulation plate two, the slot penetrates through the test box and continues to be provided with a communication hole to the conveying hole on the temperature insulation plate two, one side of the slot is attached to the synchronous belt, and the temperature insulation plate one is inserted and connected between the slots.

[0012] Preferably, the variable test structure further comprises a heating system, a refrigeration system and a vibrator, the heating system is fixedly installed between one side in the test box and the temperature insulation plate two, the refrigeration system is fixedly installed between the other side in the test box and the temperature insulation plate two, three vibrators are fixedly installed on the bottom surface in the test box, the vibrators are between the synchronous belt and the bottom surface of the test box, and the vibrators are between the two adjacent temperature insulation plates two.

[0013] (Three) beneficial effects

[0014] Compared with the prior art, the encoder reliability test device has the following beneficial effects:

[0015] 1. The encoder reliability test device, by integrating the heating system, the refrigeration system and the vibrator, can simulate various stress comprehensive action scenes that the encoder may face in actual work, such as high temperature, low temperature and vibration, so that the test environment is closer to the real working condition, thereby providing comprehensive and effective data support for the optimization design and quality improvement of the encoder, and helping to produce more reliable and excellent performance encoder products.

[0016] 2、The encoder reliability test device can accurately transport the encoder to different areas in the test box for testing by using the cooperation of the motor, the synchronous wheel and the synchronous belt, and the test box is provided with a transparent cover plate, a placing hole at a specific position and a movable door plate, so that the operator can conveniently place the encoder and observe the test process in real time, and the optimized structure design greatly improves the overall operation convenience of the device. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structural schematic diagram of the utility model;

[0018] Fig. 2 It is a structural explosion schematic diagram of the utility model;

[0019] Fig. 3 It is a sectional view of the conveying structure of the utility model.

[0020] In the figure: 1, test box; 2, frame base; 3, support plate; 4, motor; 5, synchronous belt; 6, cover plate; 7, temperature insulation plate one; 8, encoder; 9, temperature insulation plate two; 10, conveying hole; 11, placing hole; 12, slot; 13, square hole; 14, synchronous wheel; 15, shaft; 16, heating system; 17, refrigeration system; 18, vibrator. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Please refer to Figs. 1-3 An encoder reliability test device, comprising a test box 1 and a frame base 2, the test box 1 is fixedly connected with the frame base 2 on one side, one side of the frame base 2 is fixedly connected with the test box 1, the opening side of the test box 1 is set as the front of the test box 1, a conveying structure is arranged between the frame base 2 and the test box 1, the encoder 8 is placed on the conveying structure, and a variable test structure is arranged in the test box 1 corresponding to the encoder 8 and the conveying structure.

[0023] Further, four equidistantly distributed heat insulation plates 9 are fixedly connected between the side walls in the test box 1, the heat insulation plates 9 divide the test box 1 into five parts, square holes 13 are formed through the two sides of the test box 1 corresponding to the heat insulation plates 9, the square holes 13 pass through the test box 1 and the heat insulation plates 9, the heat insulation plates 9 are used to divide the test box 1 into five parts, and the encoder 8 can be used for five variable experiments.

[0024] Further, the conveying structure includes support plates 3, a motor 4, synchronous wheels 14, a rotating shaft 15 and a synchronous belt 5, two support plates 3 are fixedly connected to the two sides of the frame base 2 corresponding to the square holes 13, the square hole 13 on one side of the test box 1 is between the two support plates 3 on one side of the frame base 2, rotating shafts 15 are rotatably connected between the two support plates 3 on one side of the frame base 2 through bearing seats, the two ends of the rotating shafts 15 pass through the support plates 3 and are outside the support plates 3, two synchronous wheels 14 are fixedly connected to the holes in the cylindrical surface of the rotating shaft 15, the two synchronous wheels 14 are between the support plates 3 and close to the two sides of the support plates 3, and one synchronous belt 5 is sleeved and connected to the outer surfaces of the four synchronous wheels 14, the synchronous belt 5 passes through the square holes 13 of the test box 1 and the heat insulation plates 9 in the test box 1 and passes through the frame base 2 between the frame base 2, the main body of the motor 4 is fixedly connected to one of the support plates 3, the output shaft of the motor 4 is coaxially fixedly connected to the corresponding rotating shaft 15 through the support plate 3, the square hole 13 is used for passing through the synchronous belt 5, the support plate 3 is used for installing the rotating shaft 15 and the motor 4, the motor 4 is used for providing the rotating force of the rotating shaft 15, the synchronous wheel 14 is used for frictionally connecting with the synchronous belt 5, the synchronous belt 5 rotates in transmission with the synchronous wheel 14, and the encoder 8 moves on the synchronous belt 5.

[0025] Further, the cover plate 6 is fixedly connected between the opening sides of the test box 1, a putting hole 11 is formed through the middle position of one side of the cover plate 6 outside the test box 1, the putting hole 11 corresponds to the two heat insulation plates 9 in the middle, a movable door plate structure is installed outside the cover plate 6 corresponding to the putting hole 11, the cover plate 6 is of transparent material, and the putting hole 11 is used for putting the encoder 8 on the synchronous belt 5.

[0026] Further, the variable experiment structure includes a slot 12, a conveying hole 10 and a heat insulation plate 7, the conveying hole 10 is formed through one side of the heat insulation plate 9 corresponding to the square hole 13, the conveying hole 10 is above the synchronous belt 5 and one side of the conveying hole 10 is attached to the synchronous belt 5, the slot 12 is formed through the top surface of the test box 1 corresponding to the heat insulation plate 9, the slot 12 is continuously formed through the test box 1 and the heat insulation plate 9 to the conveying hole 10, one side of the slot 12 is attached to the synchronous belt 5, and the heat insulation plate 7 is inserted and connected between the slots 12, the conveying hole 10 is used for the encoder 8 to pass between the heat insulation plates 9, and the slot 12 is used for inserting the heat insulation plate 7.

[0027] Further, the variable amount test structure further comprises a heating system 16, a refrigeration system 17 and a vibrator 18, the heating system 16 is fixedly installed between one side of the test box 1 and the temperature insulation plate two 9, the refrigeration system 17 is fixedly installed between the other side of the test box 1 and the temperature insulation plate two 9, and the three vibrators 18 are fixedly installed on the bottom surface of the test box 1, the vibrator 18 is between the synchronous belt 5 and the bottom surface of the test box 1, and the vibrator 18 is between two adjacent temperature insulation plates two 9, the temperature insulation plate one 7 is used for blocking temperature transmission, the heating system 16 is used for providing high-temperature reliability test, the refrigeration system 17 is used for providing low-temperature reliability test, and the vibrator 18 is used for providing anti-seismic test, a part between the heating system 16 and the vibrator 18 can be used for high-temperature and anti-seismic test, a part between the refrigeration system 17 and the vibrator 18 can be used for low-temperature and anti-seismic test, and the heating system 16 and the refrigeration system 17 are far apart and have small mutual temperature influence.

[0028] Structure description:

[0029] Test box 1: a cuboid, which provides a test environment and is internally provided with various structures for reliability test of the encoder;

[0030] Frame base 2: a frame structure, which is used for supporting the test box and providing a mounting base for the conveying structure;

[0031] Support plate 3: a plate structure, which is fixed on both sides of the frame base and is used for mounting the rotating shaft 15 and the motor 4;

[0032] Motor 4: which provides rotating power for the rotating shaft 15, drives the synchronous wheel and the synchronous belt to move, and realizes conveying of the encoder in the test box;

[0033] Synchronous belt 5: a long annular belt, which cooperates with the synchronous wheel, moves circularly under the driving of the synchronous wheel, carries and conveys the encoder 8 to move in the test box;

[0034] Cover plate 6: a flat plate, which is made of transparent material, is installed on one side of the opening of the test box, and is provided with a placing hole 11, so as to facilitate placing of the encoder and observation of the situation in the test box by the operator;

[0035] Temperature insulation plate one 7: a flat plate, which is inserted into the slot 12 and is used for blocking temperature transmission between different areas in the test box, so as to ensure independence and stability of temperature conditions of each area;

[0036] Encoder 8: a tested object, which is placed on the synchronous belt 5 and moves with the synchronous belt to accept different tests;

[0037] Temperature insulation plate two 9: a flat plate, which is fixedly distributed at equal intervals in the test box, divides the test box into five areas, and cooperates with the temperature insulation plate one 7 to realize temperature partition control;

[0038] Transport hole 10: a hole-shaped hole in the temperature insulation plate 9, above the synchronous belt 5 and one side adheres to the synchronous belt, for the encoder 8 to pass between the temperature insulation plate 9;

[0039] Put hole 11: a hole in the cover plate 6, which facilitates the encoder 8 to be put on the synchronous belt 5;

[0040] Slot 12: a groove-shaped hole in the top surface of the test box and the temperature insulation plate 9, used for inserting the temperature insulation plate 1 7;

[0041] Square hole 13: a square hole that penetrates the test box and the temperature insulation plate 9, used for the synchronous belt 5 to pass through, realizing the connection of the transport structure inside and outside the test box;

[0042] Synchronous wheel 14: disc-shaped, fixed on the rotating shaft 15, connected with the synchronous belt 5 through friction, driving the synchronous belt to move;

[0043] Rotating shaft 15: cylindrical, rotatingly connected between the support plates 3 through the bearing seat, rotating under the driving of the motor, and then driving the synchronous wheel to rotate;

[0044] Heating system 16: installed between one side of the test box and the temperature insulation plate 9, generating heat to provide a high-temperature reliability test environment for the encoder;

[0045] Refrigeration system 17: installed between the other side of the test box and the temperature insulation plate 9, reducing the temperature through refrigeration cycle to realize low-temperature reliability test;

[0046] Vibrator 18: fixed on the bottom surface of the test box, between the adjacent two temperature insulation plates 9, generating vibration of different frequencies and amplitudes to simulate the vibration stress in actual work, and conducting anti-vibration test on the encoder.

[0047] Working principle: after the motor 4 is started, the output shaft drives the rotating shaft 15 fixedly connected coaxially with it to rotate, the synchronous wheels 14 at both ends of the rotating shaft 15 rotate with the rotating shaft 15, due to the frictional connection between the synchronous wheels 14 and the synchronous belt 5, the synchronous belt 5 starts to move circularly under the driving of the four synchronous wheels 14, the synchronous belt 5 passes through the square holes 13 of the frame base 2 and the test box 1 and the temperature insulation plate two 9, so that the encoder 8 placed on the synchronous belt 5 is stably transported to each position in the test box 1, realizing the movement of the encoder 8 in the test box, the heating system 16 installed on one side in the test box 1 can generate heat after being started, and the temperature of the area is raised, so as to provide a high-temperature reliability test environment for the encoder 8, and the refrigeration system 17 on the other side can reduce the temperature of the area through refrigeration cycle, so as to realize low-temperature reliability test, the temperature insulation plate two 9 divides the test box 1 into five parts, and the temperature insulation plate one 7 can be inserted into the slot 12 according to the test requirement, so as to block the temperature transmission between different areas, and ensure the independence and stability of the temperature conditions of each area, for example, when the encoder 8 needs to be subjected to single high-temperature or low-temperature test, the position of the temperature insulation plate one 7 can be adjusted, so that the encoder 8 is only located in the area affected by the heating system 16 or the refrigeration system 17, the three vibrators 18 fixedly installed on the bottom surface in the test box 1 can generate vibrations with different frequencies and amplitudes, when the encoder 8 is transported between two adjacent temperature insulation plate two 9, i.e. above the vibrator 18, the vibrator 18 is started, and the generated vibration is transmitted to the encoder 8 through the synchronous belt 5, so as to simulate the vibration stress in the actual working environment, and the encoder 8 is subjected to anti-vibration test, when the encoder 8 needs to be subjected to high-temperature plus anti-vibration or low-temperature plus anti-vibration comprehensive test, the encoder 8 can be transported to the area between the heating system 16 and the vibrator 18 or the area between the refrigeration system 17 and the vibrator 18, at this time, the heating system 16 or the refrigeration system 17 and the vibrator 18 work simultaneously, and composite stress of temperature and vibration is applied to the encoder 8, so as to more truly simulate the multiple stress comprehensive action scene of the encoder 8 under complex actual working conditions, the cover plate 6 on the opening side of the test box 1 is made of transparent material, so as to facilitate the operator to observe the state of the encoder 8 in the test box in real time, the placing hole 11 opened on the cover plate 6 corresponds to the two temperature insulation plate two 9 in the middle, and the movable door plate structure is installed on the outside, so as to facilitate the encoder 8 to be placed on the synchronous belt 5, and the convenience of operation of the device is improved.

[0048] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An encoder reliability testing device, comprising a test chamber (1) and a frame base (2), wherein the frame base (2) is fixedly connected to one side of the test chamber (1), and one side of the frame base (2) is fixedly connected to the test chamber (1), and the open side of the test chamber (1) is set as the front of the test chamber (1), characterized in that: A conveying structure is provided between the frame base (2) and the test chamber (1), and an encoder (8) is placed on the conveying structure. A variable test structure is provided in the test chamber (1) corresponding to the encoder (8) and the conveying structure.

2. The encoder reliability testing device according to claim 1, characterized in that: Four equally spaced insulation plates (9) are fixedly connected between the side walls of the test chamber (1). The insulation plates (9) divide the test chamber (1) into five parts. Square holes (13) are opened through the test chamber (1) and the insulation plates (9) on the two sides parallel to each other. The square holes (13) penetrate the test chamber (1) and the insulation plates (9).

3. The encoder reliability testing device according to claim 2, characterized in that: The conveying structure includes a support plate (3), a motor (4), a synchronous pulley (14), a rotating shaft (15), and a synchronous belt (5). Two support plates (3) are fixedly connected to the square holes (13) on both sides of the frame base (2). The square hole (13) on one side of the test chamber (1) is between the two support plates (3) on one side of the frame base (2). The two support plates (3) on one side of the frame base (2) are rotatably connected to the rotating shaft (15) through bearing seats. The two ends of the rotating shaft (15) pass through the support plates (3) and are outside the support plates (3). Two synchronous pulleys are fixedly connected to the cylindrical surface of the rotating shaft (15). (14) hole, two synchronous pulleys (14) are between the support plates (3) and the synchronous pulleys (14) are close to the support plates (3) on both sides. A synchronous belt (5) is sleeved on the outer surface of each of the four synchronous pulleys (14). The synchronous belt (5) passes through the square hole (13) of the test chamber (1) and the insulation plate (9) in the test chamber (1) and passes through the frame base (2) between the frame bases (2). The main body of the motor (4) is fixedly connected to one of the support plates (3). The output shaft of the motor (4) passes through the support plate (3) and is fixedly connected to the corresponding rotating shaft (15) coaxially.

4. The encoder reliability testing device according to claim 2, characterized in that: A cover plate (6) is fixedly connected between the opening sides of the test chamber (1). The cover plate (6) has an insertion hole (11) through the middle of the outer side of the test chamber (1). The insertion hole (11) corresponds to the two middle insulation plates (9). A movable door panel structure is installed on the outer side of the cover plate (6) corresponding to the insertion hole (11).

5. The encoder reliability testing device according to claim 3, characterized in that: The variable test structure includes a slot (12), a conveying hole (10), and a first insulation plate (7). The second insulation plate (9) has a square hole (13) on one side, through which the conveying hole (10) is opened. The conveying hole (10) is above the synchronous belt (5), and one side of the conveying hole (10) is in contact with the synchronous belt (5). The top surface of the test chamber (1) has a slot (12) corresponding to the second insulation plate (9). The slot (12) passes through the test chamber (1) and continues to be opened on the second insulation plate (9) to connect to the conveying hole (10). One side of the slot (12) is in contact with the synchronous belt (5). The first insulation plate (7) is inserted between the slots (12).

6. The encoder reliability testing device according to claim 5, characterized in that: The variable test structure also includes a heating system (16), a cooling system (17) and a vibrator (18). The heating system (16) is fixedly installed between one side of the test chamber (1) and the second insulation plate (9). The cooling system (17) is fixedly installed between the other side of the test chamber (1) and the second insulation plate (9). Three vibrators (18) are fixedly installed on the bottom surface of the test chamber (1). The vibrators (18) are between the synchronous belt (5) and the bottom surface of the test chamber (1). The vibrators (18) are between two adjacent second insulation plates (9).

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