Dustproof motor and testing device

Abstract

This invention relates to a dustproof motor and a testing device, and relates to the technical field of motors. The dustproof motor includes dustproof components, and the dustproof motor testing device includes a stationary test platform. The test platform is equipped with a limiter for limiting the movement of the dustproof motor, and a tester for performing no-load testing on the dustproof motor is also provided on the test platform. Both the tester and the limiter are located along the length of the test platform. This invention can solve the following problems existing in the prior art: First, the existing dustproof motors have poor dustproof performance; second, the existing technology has poor temperature detection performance for motors, and the temperature measuring device is prone to detachment due to vibration during motor operation; in addition, existing technologies only perform no-load or load tests when testing dustproof motors, and their unique dustproof performance cannot be effectively and rigorously tested, therefore their dustproof performance cannot be guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric machines, in particular to a dustproof electric machine and a testing device. BACKGROUND

[0002] A dustproof electric machine is an electric machine designed to prevent dust and other particulate matter from entering the interior of the electric machine. Such electric machines usually have special sealing and filtering devices to ensure that the interior of the electric machine remains clean and dust-free at all times. Dustproof electric machines are commonly used in applications that require operation in dusty environments, such as woodworking workshops, mines, construction sites, etc. These electric machines can improve the reliability and life of equipment, reduce the frequency of maintenance and cleaning, and thus reduce operating costs.

[0003] A Chinese patent with publication number CN106992635A discloses an electric machine assembly and a detection device for an electric machine assembly; the electric machine assembly includes an electric machine having a stator and a rotor rotatable about an axis; and at least one detection device is housed inside the stator and includes a magnetic probe for measuring the magnetic induction value of the electric machine and a temperature probe for measuring the temperature value of the electric machine.

[0004] However, the above-mentioned detection device still has some deficiencies in actual use:

[0005] 1. First, in the prior art, the number of temperature probes is single, the temperature detection effect of the electric machine is not good, and the electric machine is prone to falling off due to vibration during operation.

[0006] 2. Secondly, when the prior art tests the dustproof electric machine, it only performs no-load testing or load testing, and the unique dustproof effect cannot be effectively and strictly tested, so the dustproof effect cannot be guaranteed.

[0007] Therefore, in the above-mentioned view, there is still room for improvement in the existing detection device. SUMMARY

[0008] In order to solve the above-mentioned problems, the present application provides a dustproof electric machine and a testing device, which adopts the following technical scheme:

[0009] In a first aspect, the present application relates to a dustproof electric machine, which comprises a stationary housing, a motor body arranged in the housing, a rotating shaft arranged in the housing and arranged on the motor body, and a dustproof component arranged between the rotating shaft and the motor body.

[0010] The dustproof component comprises a dustproof cover outer ring, a dustproof cover inner ring, and an optical encoder; the dustproof cover outer ring is arranged between the motor body and the rotating shaft, the dustproof cover inner ring is arranged between the motor body and the rotating shaft, and the optical encoder is arranged between the dustproof cover outer ring and the dustproof cover inner ring.

[0011] In a second aspect, the application also relates to a dustproof motor testing device, which comprises a stationary testing table, wherein a limiting device for limiting the dustproof motor is arranged on the testing table, and a tester for testing the dustproof performance of the dustproof cover of the dustproof motor is also arranged on the testing table, and the tester and the limiting device are arranged on the length direction of the testing table.

[0012] Preferably, the limiting device comprises a telescopic cylinder mounted on the testing table through a support, the output end of the telescopic cylinder extends towards the tester, and an L-shaped support frame is mounted on the output end of the telescopic cylinder, the L-shaped support frame is provided with two symmetrical limiting clamps in the height direction, and a limiting strip-shaped slot for the movement of the two limiting clamps is arranged on the L-shaped support frame, a two-way cylinder is mounted on the L-shaped support frame, and the output ends of the two-way cylinder are respectively connected with the two limiting clamps.

[0013] A supporting column is mounted on the vertical end of the L-shaped support frame, and a plurality of temperature detectors are arranged at equal intervals on the supporting column.

[0014] Preferably, the tester comprises a detection box for testing the dustproof motor, a detection port for abutting against the L-shaped support frame is arranged on one end of the detection box close to the limiting device, a sand dust box for storing sand is integrally arranged on the top of the detection box, and a large amount of sand is stored in the sand dust box.

[0015] A discharging port for discharging the sand in the sand dust box is integrally arranged on the bottom of the sand dust box and the top of the detection box, a closing cone block abuts against the sand dust box in the height direction of the sand dust box, a closing spring is connected between the closing cone block and the inner wall of the sand dust box, a linkage plate is further arranged on the upper end of the closing cone block, a linkage groove is arranged on the linkage plate, and the linkage plates on the closing cone blocks are distributed in a staggered and inclined manner.

[0016] Preferably, an adjusting knob is further rotatably arranged on the sand dust box, scale lines for adjusting the angle are engraved on the adjusting knob, an adjusting column extending horizontally into the sand dust box is mounted on the adjusting knob, an adjusting gear is mounted on the adjusting column, a plurality of adjusting plates are arranged at equal intervals on the adjusting gear in the length direction, and a limiting tension spring is mounted between one side of the adjusting plate and the inner wall of the sand dust box.

[0017] Preferably, the adjusting plates and the linkage plates in the sand dust box one-to-one correspond to each other, and trapezoidal lifting blocks are respectively mounted on different positions of the plurality of adjusting plates; the distance between the trapezoidal lifting blocks on the plurality of adjusting plates and the linkage plates increases at equal intervals.

[0018] Preferably, the side end of the sand dust box is also provided with a blowing component, the sand dust box is provided with a horizontal distribution strip-shaped through slot on one side, a plurality of blowing fan blades are installed in the strip-shaped through slot at equal intervals, a passive metal connecting piece is connected to one side of the plurality of blowing fan blades through a guide wire, an active metal connecting piece is movably arranged on the passive metal connecting piece, the active metal connecting piece is arranged in a blowing box, and the blowing box is arranged at one end of the sand dust box close to the blowing fan blades.

[0019] The active metal connecting piece is connected with the inner wall of the blowing box through a reset tension spring.

[0020] Preferably, the blowing component and the tester are further provided with a linkage component, the linkage component comprises a linkage reversing wheel and a linkage insulating rope, the linkage reversing wheel is rotatably arranged on the sand dust box through a support, one end of each of the plurality of linkage insulating ropes is connected with a plurality of adjusting plates, the other end of each of the plurality of linkage insulating ropes is connected with a plurality of active metal connecting pieces, the middle part of the linkage insulating rope is sleeved on the linkage reversing wheel, and the linkage insulating rope is arranged on the active metal connecting piece from the middle part of the passive metal connecting piece.

[0021] Preferably, the test table is provided with a power supply device for supplying power to the dustproof motor.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] Firstly, the dustproof performance of the dustproof motor can be detected by the tester, the dustproof effect of the dustproof motor in the dust environment is simulated by the sand in the sand dust box, and the accuracy of the test result can be greatly improved.

[0024] Secondly, the adjusting piece and the blowing component of the present application are combined with each other, the simulated dust environment can be adjusted, and the limit dustproof effect of the dustproof motor can be detected by controlling the different harshness of the environment.

[0025] Thirdly, the sand stone circulating assembly of the present application can automatically circulate the sand in the sand dust box, ensure the continuity of the dustproof motor during the dustproof test process, further avoid manual processing of the sand in the sand dust box, and can greatly improve the efficiency of the dustproof performance test of the dustproof motor.

[0026] Fourthly, the temperature detector in the present application is arranged on the supporting column and is linked with the supporting column, can be outwardly expanded and abut against the inner wall of the dustproof motor when the dustproof motor moves to the specified test area, ensures the stability of the temperature detector, and avoids falling of the temperature detector during the working process of the dustproof motor. BRIEF DESCRIPTION OF DRAWINGS

[0027] The present application will be further described below in combination with the drawings and examples.

[0028] Figure 1 This is a schematic diagram of the main structure of the dustproof motor of the present invention.

[0029] Figure 2 This is a partial structural cross-sectional view of the dustproof motor of the present invention.

[0030] Figure 3 This is a first-view structural schematic diagram of the dustproof motor testing device of the present invention.

[0031] Figure 4 This is a second-view structural schematic diagram of the dustproof motor testing device of the present invention.

[0032] Figure 5 This is a first-view structural schematic diagram of the limiter of the present invention.

[0033] Figure 6 This is a schematic diagram of the second-view structure of the limiter of the present invention.

[0034] Figure 7 This is a schematic diagram of the third-view structure of the limiter of the present invention.

[0035] Figure 8 This is a first-view structural schematic diagram of the tester of the present invention.

[0036] Figure 9 This is a schematic diagram of the second-view structure of the tester of the present invention.

[0037] Figure 10 This is a schematic diagram of the structure of the tester, the blowing component, and the linkage component of the present invention.

[0038] Figure 11 This is a schematic diagram of the structure of the blower component of the present invention.

[0039] Figure 12 This is a schematic diagram of the internal structure of the support column of the present invention.

[0040] Figure 13 In this invention Figure 12 A magnified view of section B.

[0041] Figure 14 This is a schematic diagram of the structure of the sand and gravel recycling component of the present invention.

[0042] Explanation of reference signs: 1, dustproof component; 10, dust cover outer ring; 11, dust cover inner ring; 12, optical encoder; 2, test bench; 3, stopper; 4, tester; 30, telescopic air cylinder; 31, L-shaped support frame; 32, limiting clamp; 33, two-way air cylinder; 34, support column; 35, temperature tester; 40, detection box; 41, detection port; 42, sand and dust box; 43, discharging port; 44, closing taper block; 45, closing spring; 46, linkage plate; 47, linkage groove; 50, adjusting knob; 51, adjusting column; 52, adjusting gear; 53, adjusting plate; 54, limiting tension spring; 55, trapezoidal lifting block; 60, sand and stone collecting plate; 6, sand and stone circulating assembly; 61, circulating roller; 62, circulating conveyor belt; 63, circulating conveying frame; 64, circulating motor; 7, blowing component; 70, blowing fan blade; 71, strip-shaped through groove; 72, passive metal connecting piece; 73, active metal connecting piece; 74, reset tension spring; 75, blowing box; 8, linkage component; 80, linkage reversing wheel; 81, linkage insulating rope; 90, central shaft; 91, sliding block; 92, sliding tension spring; 93, expansion rod; 94, sliding rope; 95, limiting shaft. DETAILED DESCRIPTION

[0043] The following will be described in detail with reference to the accompanying drawings. Figures 1-14 The application is further described in detail.

[0044] The embodiment of the application discloses a dustproof motor and a test device; mainly applied to the technical field of motor preparation and detection, the prior art tests some dustproof motor A, only performs no-load and load tests, and the unique dustproof effect cannot be effectively and strictly tested, so that the dustproof effect cannot be guaranteed; secondly, in the prior art, the number of temperature probes is single, the temperature detection effect of the motor is poor, and the motor is prone to falling off due to vibration in the working process. Embodiment one:

[0045] Firstly, the application discloses a dustproof motor, which comprises a shell, a motor body arranged in the shell, and a rotating shaft arranged in the shell and rotatably arranged on the motor body, wherein a dustproof component 1 is arranged between the rotating shaft and the motor body.

[0046] The dustproof motor A is in a circular ring structure, and the middle part is in a hollow structure.

[0047] Referring to FIGS. 1 to 3, Figure 1 and Figure 2 As shown in the figures, the dustproof component 1 comprises a dust cover outer ring 10, a dust cover inner ring 11 and an optical encoder 12; the dust cover outer ring 10 is abutted between the motor body and the rotating shaft, the dust cover inner ring 11 is abutted between the motor body and the rotating shaft, and the optical encoder 12 is arranged between the dust cover outer ring 10 and the dust cover inner ring 11.

[0048] The dust cover outer ring 10 and the dust cover inner ring 11 are made of rubber material, which can be arranged at the gap of the dustproof motor A, so as to prevent impurities and dust from entering the inside of the dustproof motor A from the gap during high-speed rotation of the rotating shaft, and damage the inside of the dustproof motor A.

[0049] The optical encoder 12 is a sensor for detecting position, speed and direction. It measures the position of rotary or linear motion through optical technology and converts the information into digital signals. The optical encoder 12 is usually composed of light source, grating, receiver, glass code disc and signal processor. The light source emits light, the grating reflects or transmits different patterns to generate encoding signals, the receiver receives and analyzes these signals, and finally the signal processor converts them into digital signal output.

[0050] The optical encoder 12 has the advantages of high precision, high resolution, high reliability and strong anti-interference ability, and is widely used in mechanical equipment, automation system, robot, medical equipment and other fields.

[0051] The glass code disc in the optical encoder 12 is sensitive to dust. Once a certain amount and size of dust impurities adhere, the signal processor of the encoder will identify and alarm, and control the dustproof motor A to stop running. In the limited space of the motor, a dust cover is made to isolate the code disc from the outside world, which can effectively avoid the problem of impurity dust pollution.

[0052] In addition, as shown in Figure 3 and Figure 4 , the application also provides a dustproof motor A testing device for detecting the above-mentioned dustproof motor A, which comprises a stationary test bench 2, a limiting device 3 for limiting the dustproof motor A is arranged on the test bench 2, and a tester 4 for testing the dustproof motor A under no load and load is also arranged on the test bench 2, and the tester 4 and the limiting device 3 are arranged in the length direction of the test bench 2.

[0053] Firstly, the limiting device 3 is used for fixing the dustproof motor A, and it can fix dustproof motors A of different sizes.

[0054] The tester 4 mainly tests the dustproof motor A under no load and load, and detects the state of the dustproof motor A under no load. The dustproof motor A is placed on the platform, connected to the power supply device, idling runs, and does 24-hour durability test, records the speed fluctuation of each speed point, current fluctuation and temperature rise of each part of the motor.

[0055] Referring to Figure 5 , Figure 6 and Figure 7As shown, the position limiter 3 comprises a telescopic cylinder 30 mounted on the test bench 2 through a support, the output end of the telescopic cylinder 30 extends towards the tester 4, and an L-shaped support frame 31 is mounted on the output end of the telescopic cylinder 30, the L-shaped support frame 31 is provided with two symmetrical distributed position clamps 32 along the height direction, and a position strip slot for the movement of the two position clamps 32 is formed on the L-shaped support frame 31, and a two-way cylinder 33 is mounted on the L-shaped support frame 31, and the output end of the two-way cylinder 33 is connected with the two position clamps 32 respectively.

[0056] The vertical end of the L-shaped support frame 31 is provided with a support column 34, and a plurality of temperature detectors 35 are equidistantly arranged on the support column 34.

[0057] When the dustproof motor A is tested, first, the dustproof motor A is placed on the support column 34 of the L-shaped support frame 31, the weight of the dustproof motor A is supported by the support column 34, then the two-way cylinder 33 is started, the telescopic ends on both sides of the two-way cylinder 33 control the synchronous movement of the two position clamps 32, until the two position clamps 32 clamp the dustproof motor A located in the middle, so that the dustproof motor A is fixed between the two position clamps 32, at this time, the dustproof motor A is concentrically distributed with the support column 34.

[0058] When the dustproof motor A is fixed by the position clamps 32, the support column 34 is located in the middle of the dustproof motor A, at this time, the temperature detectors 35 on the upper end are electrified and extend outward from the inside of the support column 34, so that the temperature detectors 35 are attached to the inner wall of the dustproof motor A, and the temperature of multiple areas of the inner wall of the dustproof motor A is monitored.

[0059] Then the telescopic cylinder 30 is started, the output end of the telescopic cylinder 30 controls the movement of the L-shaped support frame 31 towards the detection box 40, until the dustproof motor A passes through the detection port 41 of the detection box 40 and enters the inside, and the L-shaped support frame 31 abuts against the detection port 41 of the detection box 40, so as to block the detection port 41, so that the inside of the detection box 40 forms a closed state, which is convenient for testing.

[0060] Referring to Figure 8 and Figure 9 As shown, it is a structure schematic diagram for testing the dustproof motor A in the application; the tester 4 comprises a detection box 40 for detecting the dustproof motor A, the detection box 40 is provided with a detection port 41 near one end of the position limiter 3 for abutting against the L-shaped support frame 31, and the top of the detection box 40 is integrally provided with a sand dust box 42 for storing sand dust, and the inside of the sand dust box 42 stores a large amount of sand.

[0061] It should be noted that the sand is stored in the sand dust box 42, and the sand is a known product, which is specially used for detecting the dustproof effect of the dustproof motor A.

[0062] When the sand and gravel fall towards the dustproof motor A, the sand and gravel will collide with each other, thereby generating some dust or debris after the collision.

[0063] The bottom of the sand and dust box 42 is integrally provided with a discharging port 43 for the sand and gravel in the sand and dust box 42 to leak out, the discharging port 43 of the sand and dust box 42 is abutted against a closing cone block 44 along the height direction of the sand and dust box 42, a closing spring 45 is connected between the closing cone block 44 and the inner wall of the sand and dust box 42, and a linkage plate 46 is further arranged at the upper end of the closing cone block 44, the linkage plate 46 is provided with a linkage groove 47, and the linkage plates 46 on the plurality of closing cone blocks 44 are distributed in a staggered and inclined manner.

[0064] In the initial state, the closing spring 45 has a certain elastic force, the closing spring 45 presses downward on the closing cone block 44, the closing cone block 44 is extruded to the discharging port 43 of the sand and dust box 42, and the discharging port 43 of the sand and dust box 42 is blocked.

[0065] When the dustproof motor A is tested under no load, the dustproof motor A is powered on, at this time, the dustproof motor A is running at no load in the detection box 40, and 24-hour durability test is continuously carried out, the speed fluctuation of each speed point, the current fluctuation and the temperature rise of each part of the motor are recorded.

[0066] In order to further improve the accuracy of the no-load test of the dustproof motor A and reflect the performance of the dustproof motor A, the first closing cone block 44 in the sand and dust box 42 is opened, and the first discharging port 43 at the bottom of the sand and dust box 42 is exposed, at this time, the sand starts to expose from the discharging port 43 at the bottom of the sand and dust box 42 at a constant speed, so that the sand and gravel can move in free fall, in this process, the dustproof motor A continuously carries out 24-hour durability test, and the speed fluctuation of each speed point, the current fluctuation and the temperature rise of each part of the motor are recorded.

[0067] If the dustproof motor A stops during the test process, it indicates that the optical encoder 12 in the dustproof part 1 in the dustproof motor A detects that a large amount of dust enters the dustproof motor A, and it indicates that the dustproof performance of the dustproof motor A is poor.

[0068] If the dustproof motor A continuously runs during the test process without any stop, and the recorded data all meet the standard, it indicates that the dustproof performance of the dustproof motor A is qualified.

[0069] Referring to Figure 8 , Figure 9 and Figure 10 , it is a structure schematic diagram for further detecting the dustproof performance of the dustproof motor A in the present application.

[0070] The falling of the sand and gravel is realized by opening the discharge port 43 of the sand and dust box 42, simulating the working state of the dustproof motor A in the dust environment. However, the environment in different regions is different, and therefore the size of the dust can be adjusted, the dustproof motor A is simulated to work in different harsh environments, so as to detect the performance thereof. The adjusting knob 50 is rotatably arranged on the sand and dust box 42, and the adjusting knob 50 is marked with a scale line of adjusting angle. The adjusting column 51 extending horizontally to the inside of the sand and dust box 42 is arranged on the adjusting knob 50. The adjusting gear 52 is arranged on the adjusting column 51. The adjusting plates 53 are equidistantly arranged along the length direction of the adjusting gear 52. The limiting tension spring 54 is arranged between one side of the adjusting plate 53 and the inner wall of the sand and dust box 42.

[0071] It should be noted that the adjusting knob 50 is provided with a scale line, and the scale line is 1, 2, 3, 4, 5. The multiple discharge ports 43 at the bottom of the sand and dust box 42 can be opened. When the adjusting knob 50 is rotated to the scale 2, the corresponding two discharge ports 43 at the bottom of the sand and dust box 42 are opened. When the adjusting knob 50 is rotated to the scale 3, the corresponding three discharge ports 43 at the bottom of the sand and dust box 42 are opened. Similarly, the above-mentioned process is carried out.

[0072] The adjusting plate 53 corresponds to the linkage plate 46 in the sand and dust box 42, and the different positions of the multiple adjusting plates 53 are respectively provided with the trapezoidal lifting blocks 55.

[0073] After the dustproof motor A is preliminarily tested in the detection box 40, the adjusting knob 50 can be rotated. The adjusting knob 50 controls the adjusting gear 52 to rotate through the concentric adjusting column 51. The adjusting gear 52 drives the first adjusting plate 53 and the first trapezoidal lifting block 55 to move to the linkage plate 46 on the corresponding first closing conical block 44. At this time, the trapezoidal lifting block 55 extrudes the linkage groove 47 on the linkage plate 46, so that the linkage plate 46 controls the first closing conical block 44 to move upward, and the first discharge port 43 on the sand and dust box 42 is opened.

[0074] In this process, the multiple adjusting plates 53 in the sand and dust box 42 also move synchronously by the same position, but the multiple adjusting plates 53 are distributed in a staggered manner. The trapezoidal lifting blocks 55 on the other adjusting plates 53 do not contact the corresponding linkage plates 46, but move a certain distance to the corresponding linkage plates 46. The distance between the adjacent adjusting plates 53 is the distance of one scale line of the adjusting knob 50 each time. The sawtooth structures meshing with the adjusting gear 52 are arranged on the multiple adjusting plates 53. However, it should be noted that the lengths of the sawtooth structures on the multiple adjusting plates 53 are different. Along the width direction of the sand and dust box 42, the sawtooth structures on the adjusting plates 53 gradually increase in turn.

[0075] Then rotate the adjusting knob 50, the adjusting knob 50 drives the second adjusting plate 53 to move towards the second closing taper block 44, at this time the sawtooth structure of the first adjusting plate 53 is separated from the adjusting gear 52, the first adjusting plate 53 cannot move, and also cannot be retracted, then the trapezoidal lifting block 55 on the second adjusting plate 53 lifts the linkage plate 46 on the second closing taper block 44, thereby opening the second discharge port 43 in the sand dust box 42.

[0076] Then by analogy, all the discharge ports 43 at the bottom of the sand dust box 42 can be opened.

[0077] By adjusting the knob 50, the strength of the dustproof motor A for dustproof test can be changed, which greatly ensures the accuracy of the dustproof motor A test.

[0078] Further, when the sandstone falls freely downward, the sandstone cannot directly act on the position of the dustproof motor A shaft, and the sandstone will fall on the shell of the dustproof motor A. In order to ensure that the sandstone can accurately act on the position of the dustproof motor A rotating at high speed.

[0079] Referring to Figure 10 and Figure 11 It is shown that the application also proposes a blowing component 7, and the side end of the sand dust box 42 is also provided with the blowing component 7. The blowing component 7 comprises blowing fan blades 70, and a horizontal distribution strip-shaped through slot 71 is formed on one side of the sand dust box 42. A plurality of blowing fan blades 70 are installed in the strip-shaped through slot 71 at equal intervals. One side of the plurality of blowing fan blades 70 is connected with a passive metal connecting piece 72 through a wire. The passive metal connecting piece 72 movably has a driving metal connecting piece 73. The driving metal connecting piece 73 is arranged in a blowing box 75. The blowing box 75 is installed at one end of the sand dust box 42 close to the blowing fan blades 70.

[0080] The driving metal connecting piece 73 is connected with the inner wall of the blowing box 75 and has a reset tension spring 74.

[0081] When the first discharge port 43 in the sand dust box 42 is opened, the corresponding first blowing fan blade 70 in the sand dust box 42 is opened. The airflow generated by the blowing fan blade 70 exerts an external force on the falling sandstone, so that the sandstone falls in the direction of the dustproof motor A. At this time, the sandstone will approach the side of the dustproof motor A shaft rotating in the falling process, thereby effectively detecting the dustproof effect.

[0082] Correspondingly, when the sand dust box 42 opens a plurality of discharge ports 43 to drop a large amount of sandstone downward, the effect of a single blowing fan blade 70 is poor. Therefore, a plurality of blowing fan blades 70 are correspondingly arranged. The opening and closing of the discharge port 43 are linked with the blowing fan blade 70 through the linkage component 8. Opening several discharge ports 43 correspondingly opens the same blowing fan blade 70, so as to ensure that the sandstone can simulate a real dust environment in the detection box 40. The specific implementation is shown as follows:

[0083] Further look Figure 10 As shown, the blowing part 7 and the tester 4 are further provided with a linkage part 8, the linkage part 8 comprises a linkage reversing wheel 80 and linkage insulating ropes 81, the linkage reversing wheel 80 is rotatably arranged on the sand dust box 42 through a support, one end of each of the linkage insulating ropes 81 is connected with the adjusting plate 53, the other end of each of the linkage insulating ropes 81 is connected with the active metal connecting piece 73, the middle part of the linkage insulating ropes 81 is sleeved on the linkage reversing wheel 80, and the linkage insulating ropes 81 are arranged from the middle part of the passive metal connecting piece 72 to the active metal connecting piece 73.

[0084] It should be noted that the spacing between the active metal connecting pieces 73 and the passive metal connecting pieces 72 gradually increases.

[0085] When the adjusting plate 53 inside the sand dust box 42 moves towards the linkage plate 46, the adjusting plate 53 drives the active metal connecting piece 73 to move towards the passive metal connecting piece 72 through the linkage insulating rope 81, when the first discharge port 43 is opened, the corresponding first active metal connecting piece 73 contacts the first passive metal connecting piece 72, so that the corresponding first blowing fan blade 70 is started to be powered, and the second discharge port 43 is opened in turn, the corresponding second blowing fan blade 70 is started to be powered.

[0086] Through the linkage part 8, the blowing fan blade 70 and the sandstone falling can be linked, so as to simulate the dustproof motor A working in different degrees of complex environment, and further detect the performance of the dustproof motor A in different degrees of complex environment. Embodiment two

[0087] Further, the application also provides embodiment two: the temperature detector 35 on the supporting column 34 is extended, so that it is always attached to the inner wall of the dustproof motor A.

[0088] Referring to Figure 12 and Figure 13 As shown, the supporting column 34 is a hollow structure, and a center shaft 90 is installed inside, a plurality of sliding blocks 91 are arranged at equal intervals on the center shaft 90, a sliding tension spring 92 is connected to one end of the center shaft 90 and the sliding block 91, an extension rod 93 is hinged to the sliding block 91, one end of the extension rod 93 away from the sliding block 91 is connected with the temperature detector 35, and a mounting groove for mounting the temperature detector 35 is arranged on the supporting column 34.

[0089] One side of the sliding block 91 is connected with a sliding rope 94, the other end of the sliding rope 94 is connected to the support of the telescopic cylinder 30 through the L-shaped support bracket 31.

[0090] The extension rod 93 is provided with an extension slot, and a limiting shaft 95 is arranged in the extension slot.

[0091] When the L-shaped support frame 31 is controlled by the telescopic cylinder 30 to move towards the detection box 40, the sliding rope 94 is straightened, at this time, the sliding rope 94 drives the sliding block 91 to move towards the telescopic cylinder 30, at this time, the sliding block 91 extrudes the extension rod 93 which is distributed in an inclined manner, so that the end of the extension rod 93 connected with the temperature detector 35 extends outward, until the temperature detector 35 abuts against the inner wall of the dustproof motor A, so that the temperature of the inner wall of the dustproof motor A can be monitored in real time. Embodiment three:

[0092] Referring to Figure 14 As shown in the figure, on the basis of the first embodiment, in order to further ensure the accuracy of the detection of the dustproof motor A, the sandstone circulation assembly 6 is further provided, when the sandstone falls from top to bottom in the sand dust box 42, the sandstone will gradually accumulate at the bottom of the sand dust box 42, when the sandstone gradually accumulates, the sandstone accumulated at the bottom of the sand dust box 42 will submerge the dustproof motor A, so as to cause damage to the dustproof motor A, further, when the sandstone is accumulated at the bottom of the sand dust box 42, it needs to be cleaned manually, so as to affect the efficiency of the detection of the dustproof motor A, therefore, the sandstone circulation assembly 6 is provided to solve the above problems.

[0093] Specifically, referring to Figure 14 As shown in the figure, the bottom of the detection box 40 is further provided with a sandstone collecting plate 60 in an inverted conical structure, and the sandstone circulation assembly 6 is integrally installed at the bottom of the sandstone collecting plate 60.

[0094] The sandstone circulation assembly 6 comprises a circulating roller 61, a circulating conveying belt 62 and a circulating conveying frame 63, the circulating roller 61 is symmetrically arranged on the outer wall of the sand dust box 42, the circulating conveying belt 62 is sleeved on the circulating roller 61, the circulating conveying frame 63 is installed on the circulating conveying belt 62 at equal intervals, and the tail end of the circulating conveying belt 62 is arranged at the bottom of the sand dust box 42, and a circulating motor 64 is arranged on one side of the circulating roller 61.

[0095] In specific implementation, the circulating motor 64 is started, the circulating motor 64 drives the circulating roller 61 to rotate, the circulating roller 61 drives the circulating conveying belt 62 to rotate at a constant speed, at this time, the circulating conveying frame 63 on the circulating conveying belt 62 moves along the movement track of the circulating conveying belt 62, when the circulating conveying frame 63 moves to the bottom of the detection box 40, the sandstone accumulated at the bottom of the detection box 40 is collected, and then the sandstone is conveyed into the sand dust box 42 through the circulating conveying belt 62 for storage, so that the situation that the sandstone in the sand dust box 42 is depleted can be avoided, and automatic and continuous feeding of the sand dust box 42 can be realized.

[0096] When working: first, when testing the dustproof motor A, place the dustproof motor A on the supporting column 34 of the L-shaped support frame 31, support the weight of the dustproof motor A through the supporting column 34, then start the two-way cylinder 33, the extension ends on both sides of the two-way cylinder 33 control the synchronous movement of the two limiting clamps 32, until the two limiting clamps 32 clamp the dustproof motor A located in the middle, so that the dustproof motor A is fixed between the two limiting clamps 32, at this time the dustproof motor A is concentrically distributed between the supporting column 34.

[0097] Second step: the telescopic cylinder 30 is started, the output end of the telescopic cylinder 30 controls the L-shaped support frame 31 to move towards the detection box 40, until the dustproof motor A passes through the detection port 41 of the detection box 40 and enters its interior, and the L-shaped support frame 31 abuts against the detection port 41 of the detection box 40, the sliding rope 94 is straightened, at this time the sliding rope 94 drives the sliding block 91 to move towards the telescopic cylinder 30, at this time the sliding block 91 extrudes the expansion rod 93 distributed in an inclined manner, so that the end of the expansion rod 93 connected with the temperature meter 35 extends outward, until the temperature meter 35 abuts against the inner wall of the dustproof motor A, that is, the temperature of the inner wall of the dustproof motor A can be monitored in real time.

[0098] Third step: when testing the dustproof motor A under no load, the dustproof motor A is powered on, at this time the dustproof motor A runs under no load in the interior of the detection box 40, and 24-hour endurance test is continuously carried out, the speed fluctuation of each speed point, the current fluctuation and the temperature rise of each part of the motor are recorded.

[0099] Fourth step: in order to further improve the accuracy of the no-load test of the dustproof motor A and reflect the performance of the dustproof motor A, the first closed taper block 44 in the interior of the sand dust box 42 is opened, the first discharge port 43 at the bottom of the sand dust box 42 is exposed, at this time the sand dust begins to expose at a constant speed from the discharge port 43 at the bottom of the sand dust box 42, so that the sandstone can move freely, in this process the dustproof motor A continuously carries out 24-hour endurance test, and the speed fluctuation of each speed point, the current fluctuation and the temperature rise of each part of the motor are recorded.

[0100] Fifth step: after the dustproof motor A is preliminarily tested in the dust environment in the detection box 40, the adjusting knob 50 can be rotated to sequentially open all the discharge ports 43 at the bottom of the sand dust box 42; by adjusting the knob 50, the intensity of the dustproof test of the dustproof motor A can be changed, which greatly guarantees the accuracy of the dustproof motor A test.

[0101] Sixth step: when the first discharge port 43 in the sand dust box 42 is opened, the corresponding first blowing fan blade 70 in the sand dust box 42 is opened, and the airflow generated by the blowing fan blade 70 exerts an external force on the falling sand and gravel, so that the sand and gravel falls in the direction of the dustproof motor A. At this time, the sand and gravel will approach the side of the dustproof motor A rotating shaft during the falling process, so as to effectively detect the dustproof effect.

[0102] The embodiments of the present embodiment are the preferred embodiments of the present application, but do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A dustproof motor testing device, characterized in that: The dustproof motor includes a stationary outer casing, a motor body inside the casing, and a rotating shaft inside the casing. The rotating shaft is hollow and concealed, and is located on the motor body. A dustproof component (1) is provided between the rotating shaft and the motor body. The dustproof component (1) includes an outer ring (10) of a dustproof cover, an inner ring (11) of a dustproof cover, and an optical encoder (12); the outer ring (10) of the dustproof cover abuts against the motor body and the rotating shaft, the inner ring (11) of the dustproof cover abuts against the motor body and the rotating shaft, and the optical encoder (12) is located between the outer ring (10) and the inner ring (11) of the dustproof cover; The aforementioned dustproof motor also involves a testing device, which includes a stationary test bench (2), a limiter (3) for limiting the movement of the dustproof motor, and a tester (4) for detecting the dustproof effect of the outer ring (10) and inner ring (11) of the dustproof cover of the dustproof motor. The tester (4) and the limiter (3) are both located in the length direction of the test bench (2). The limiter (3) includes a telescopic cylinder (30) mounted on the test bench (2) via a bracket. The output end of the telescopic cylinder (30) extends toward the tester (4), and an L-shaped support frame (31) is mounted on the output end of the telescopic cylinder (30). The L-shaped support frame (31) has two symmetrically distributed limit clamps (32) along the height direction, and a limit strip groove for the movement of the two limit clamps (32) is opened on the L-shaped support frame (31). A bidirectional cylinder (33) is mounted on the L-shaped support frame (31), and the output end of the bidirectional cylinder (33) is connected to the two limit clamps (32) respectively. A support column (34) is mounted on the vertical end of the L-shaped support frame (31), and several thermometers (35) are evenly spaced on the support column (34). The tester (4) includes a test box (40) for testing the dustproof motor. The test box (40) has a test port (41) at one end near the limiter (3) for the L-shaped support frame (31) to abut. The top of the test box (40) is integrated with a sand and gravel box (42) for storing sand and gravel. The sand and gravel box (42) stores a large amount of sand and gravel inside. The bottom of the sand and gravel box (42) and the top of the test box (40) are integrated with a test port for the sand and gravel box (42) to abut. The discharge port (43) of the sand and gravel leakage, the discharge port (43) of the sand and dust box (42) is abutted against a closed cone block (44) along the height direction of the sand and dust box (42), a closed spring (45) is connected between the closed cone block (44) and the inner wall of the sand and dust box (42), and a linkage plate (46) is provided at the upper end of the closed cone block (44), and a linkage groove (47) is provided on the linkage plate (46), and the linkage plates (46) on several closed cone blocks (44) are staggered and inclined. The adjusting plate (53) corresponds one-to-one with the linkage plate (46) inside the sand and dust box (42), and trapezoidal lifting blocks (55) are installed at different positions on several adjusting plates (53); the distance between the trapezoidal lifting blocks (55) on several adjusting plates (53) and the linkage plate (46) increases equally; The side end of the dust box (42) is also provided with a blowing component (7), which includes a blower blade (70). A horizontally distributed strip groove (71) is opened on one side of the dust box (42). Several blower blades (70) are installed at equal intervals in the strip groove (71). A passive metal connector (72) is connected to one side of several blower blades (70) through a wire. An active metal connector (73) is movably provided on the passive metal connector (72). The active metal connector (73) is located in the blower box (75). The blower box (75) is installed at one end of the dust box (42) near the blower blades (70). A reset spring (74) is connected between the active metal connector (73) and the inner wall of the blower box (75). A linkage component (8) is also provided between the blower component (7) and the tester (4). The linkage component (8) includes a linkage reversing wheel (80) and a linkage insulating rope (81). The linkage reversing wheel (80) is rotatably mounted on the sand and dust box (42) via a bracket. One end of several linkage insulating ropes (81) is connected to several adjusting plates (53) respectively, and the other end of several linkage insulating ropes (81) is connected to several active metal connectors (73) respectively. The middle part of the linkage insulating rope (81) is sleeved on the linkage reversing wheel (80), and the linkage insulating rope (81) passes through the middle of the passive metal connector (72) to the active metal connector (73). The dust box (42) is also equipped with an adjustment knob (50) that rotates. The adjustment knob (50) is engraved with scale lines for adjusting the angle. An adjustment column (51) that extends horizontally into the dust box (42) is installed on the adjustment knob (50). An adjustment gear (52) is installed on the adjustment column (51). Several adjustment plates (53) are evenly spaced along the length of the adjustment gear (52). A limiting tension spring (54) is installed between one side of the adjustment plate (53) and the inner wall of the dust box (42). Several adjustment plates (53) are provided with sawtooth structures that mesh with adjustment gears (52). The lengths of the sawtooth structures on several adjustment plates (53) are different, and the number of sawtooth structures on the adjustment plates (53) gradually increases along the width direction of the sand and dust box (42).

2. The dustproof motor testing device according to claim 1, characterized in that: The test bench (2) is equipped with a power supply device that powers the dustproof motor.

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