Dustproof motor and testing device

Abstract

The invention relates to a dustproof motor and a testing device, and relates to the technical field of motors. The dustproof motor comprises a dustproof component, the dustproof motor testing device comprises a static testing table, a limiter for limiting the dustproof motor is arranged on the testing table, a tester for carrying out no-load testing on the dustproof motor is further arranged on the testing table, and the tester and the limiter are both arranged in the length direction of the testing table; the dustproof motor can solve the following problems in the prior art: firstly, an existing dustproof motor is poor in dustproof effect; secondly, in the prior art, the temperature detection effect of the motor is poor, and temperature measuring equipment is prone to falling off due to vibration in the working process of the motor; in addition, when the dustproof motor is tested in the prior art, only no-load test or load test is carried out, and the special dustproof effect of the dustproof motor cannot be effectively and strictly tested, so that the dustproof effect of the dustproof motor cannot be guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to a dustproof motor and a testing device. Background Art

[0002] A dustproof motor is a motor that is designed to prevent dust and other particulate matter from entering the motor interior. Such motors usually have special seals and filters to ensure that the interior of the motor is always kept clean and dust-free. Dustproof motors are often used in applications that need to operate in dusty environments, such as woodworking shops, mines, construction sites, etc. These motors can increase the reliability and life of the equipment, reduce the frequency of maintenance and cleaning, and thus reduce operating costs.

[0003] For example, a Chinese patent with publication number CN106992635A discloses a motor assembly and a detection device for the motor assembly; the motor assembly includes a motor having a stator and a rotor rotatable around an axis; and at least one detection device, which is accommodated inside the stator and includes a magnetic probe for measuring the magnetic induction value of the motor and a temperature probe for measuring the temperature value of the motor.

[0004] However, the above detection device still has some shortcomings in actual use: 1. First, in the prior art, the number of temperature probes is limited, the temperature detection effect on the motor is poor, and the motor is prone to fall off due to vibration during operation.

[0005] 2. Secondly, when the prior art tests dust-proof motors, only no-load tests or load tests are performed, and the unique dust-proof effect cannot be effectively and strictly tested, so the dust-proof effect cannot be guaranteed.

[0006] Therefore, based on the above-stated viewpoints, there is still room for improvement in the existing detection devices. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a dustproof motor and a testing device, which adopt the following technical solutions: In a first aspect, the present application relates to a dustproof motor, comprising a stationary outer shell, wherein a motor body is disposed in the outer shell, and a rotating shaft is also disposed in the outer shell, which is a hollow hidden type, and the rotating shaft is disposed on the motor body, and a dustproof component is provided between the rotating shaft and the motor body.

[0008] The dustproof component includes an outer ring of the dustproof cover, an inner ring of the dustproof cover and an optical encoder; the outer ring of the dustproof cover abuts between the motor body and the rotating shaft, the inner ring of the dustproof cover abuts between the motor body and the rotating shaft, and the optical encoder is arranged between the outer ring of the dustproof cover and the inner ring of the dustproof cover.

[0009] In the second aspect, the present application also relates to a dustproof motor testing device, which includes a stationary test bench, on which a limiter is provided for limiting the position of the dustproof motor, and a tester is provided on the test bench for detecting the dustproof performance of the outer ring and inner ring of the dust cover of the dustproof motor, wherein the tester and the limiter are both arranged in the length direction of the test bench.

[0010] Preferably, the limiter includes a telescopic cylinder installed on the test bench through a bracket, the output end of the telescopic cylinder extends in the direction of the tester, and an L-shaped support bracket is installed on the output end of the telescopic cylinder, the L-shaped support bracket is provided with two symmetrically distributed limit clamps along the height direction, and the L-shaped support bracket is provided with a limit strip groove for the movement of the two limit clamps, and a bidirectional cylinder is installed on the L-shaped support bracket, and the output end of the bidirectional cylinder is respectively connected to the two limit clamps.

[0011] A supporting column is installed at the vertical end of the L-shaped supporting bracket, and a plurality of temperature measuring devices are arranged on the supporting column at equal intervals.

[0012] Preferably, the tester includes a test box for testing the dustproof motor, and a test port for an L-shaped support bracket to abut against is provided at one end of the test box close to the limiter, and a dust box for storing sand and gravel is integrated at the top of the test box, and a large amount of sand and gravel is stored inside the dust box.

[0013] The bottom of the dust box and the top of the detection box are integrated with a discharge port for leakage of sand and gravel inside the dust box. A closed cone block is abutted against the discharge port of the dust box along the height direction of the dust box. A closing spring is connected between the closed cone block and the inner wall of the dust box. A linkage plate is also provided at the upper end of the closed cone block. A linkage groove is provided on the linkage plate. Several linkage plates on the closed cone blocks are staggered and tilted.

[0014] Preferably, the dust box is also provided with a rotatable adjustment knob, on which scale lines for adjusting angles are engraved, and on which an adjustment column is installed the adjustment knob, which extends and rotates horizontally toward the inside of the dust box, and on which an adjustment gear is installed the adjustment column, and the adjustment gear is provided with a number of adjustment plates at equal intervals along the length direction, and a limit tension spring is installed between one side of the adjustment plate and the inner wall of the dust box.

[0015] Preferably, the adjustment plates correspond one to one with the linkage plates inside the dust box, and trapezoidal lifting blocks are respectively installed at different positions of several adjustment plates; the distances between the trapezoidal lifting blocks on several adjustment plates and the linkage plates are increased at equal intervals.

[0016] Preferably, a blowing component is further provided at the side end of the dust box, and the blowing component includes blowing fan blades. A horizontally distributed strip through groove is opened on one side of the dust box, and a plurality of blowing fan blades are installed at equal intervals in the strip through groove. A passive metal connector is connected to one side of the plurality of blowing fan blades through a wire, and an active metal connector is movably provided on the passive metal connector. The active metal connector is arranged in the blowing box, and the blowing box is installed at one end of the dust box close to the blowing fan blades.

[0017] A reset tension spring is connected between the active metal connector and the inner wall of the blowing box.

[0018] Preferably, a linkage component is also arranged between the blowing component and the tester, and the linkage component includes a linkage reversing wheel and a linkage insulating rope. The linkage reversing wheel is rotatably arranged on the dust box through a bracket, one end of several linkage insulating ropes are respectively connected to several adjustment plates, and the other ends of several linkage insulating ropes are respectively connected to several active metal connectors, the middle part of the linkage insulating rope is sleeved on the linkage reversing wheel, and the linkage insulating rope is passed from the middle part of the passive metal connector to the active metal connector.

[0019] Preferably, the test bench is provided with a power supply device for supplying power to the dustproof motor.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present invention can detect the dustproof performance of the dustproof motor through a tester, and can greatly improve the accuracy of the test result by simulating the dustproof effect of the dustproof motor when working in a dusty environment through the sand and gravel inside the dust box.

[0021] Second, the adjustment member and the blowing member of the present invention are combined with each other to adjust the simulated dust environment, and the ultimate dustproof effect of the dustproof motor can be detected by controlling the different severity of the environment.

[0022] 3. The sand and gravel circulation component of the present invention can automatically circulate the sand and gravel inside the dust box, ensuring the continuity of the dustproof motor during the dustproof test, further avoiding manual processing of the sand and gravel inside the dust box, and can greatly improve the efficiency of the dustproof performance test of the dustproof motor.

[0023] 4. The temperature detector in the present invention is arranged on the supporting column and is linked with the supporting column. When the dustproof motor moves to the designated test area, it can be stretched outward and pressed against the inner wall of the dustproof motor to ensure the stability of the temperature detector and prevent the temperature detector from falling off during the operation of the dustproof motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Figure 1 It is a schematic diagram of the main structure of the dustproof motor of the present invention.

[0026] Figure 2 It is a partial structural sectional view of the dustproof motor of the present invention.

[0027] Figure 3 It is a schematic structural diagram of the dustproof motor testing device of the present invention from a first perspective.

[0028] Figure 4 It is a second viewing angle structural schematic diagram of the dustproof motor testing device of the present invention.

[0029] Figure 5 It is a schematic structural diagram of the limiter of the present invention from a first viewing angle.

[0030] Figure 6 2 is a schematic diagram of the structure of the limiter of the present invention from a second viewing angle.

[0031] Figure 7 It is a schematic structural diagram of the limiter of the present invention from a third viewing angle.

[0032] Figure 8 It is a schematic diagram of the structure of the tester of the present invention from a first viewing angle.

[0033] Fig. 9 It is a schematic diagram of the structure of the tester of the present invention from a second viewing angle.

[0034] Fig.10 It is a structural schematic diagram of the tester, the blowing component and the linkage component of the present invention.

[0035] Fig.11 It is a structural schematic diagram of the blowing component of the present invention.

[0036] Fig.12 It is a schematic diagram of the structure inside the supporting column of the present invention.

[0037] Fig.13 The present invention Fig.12 A partial enlarged view of point B.

[0038] Fig.14 It is a structural schematic diagram of the sand and gravel circulation component of the present invention.

[0039] Description of the accompanying drawings: 1. dustproof component; 10. outer ring of dust cover; 11. inner ring of dust cover; 12. optical encoder; 2. test bench; 3. stopper; 4. tester; 30. telescopic cylinder; 31. L-shaped support bracket; 32. limit clamp; 33. two-way cylinder; 34. support column; 35. temperature detector; 40. detection box; 41. detection port; 42. dust box; 43. feeding port; 44. closing cone block; 45. closing spring; 46. linkage plate; 47. linkage groove; 50. adjustment knob; 51. adjustment column; 52. adjustment gear; 53. adjustment plate; 5 4. Limit tension spring; 55. Trapezoidal lifting block; 60. Sand and gravel collecting plate; 6. Sand and gravel circulation assembly; 61. Circulation roller; 62. Circulation conveyor belt; 63. Circulation conveyor frame; 64. Circulation motor; 7. Blowing component; 70. Blowing fan blade; 71. Strip through groove; 72. Passive metal connector; 73. Active metal connector; 74. Reset tension spring; 75. Blowing box; 8. Linkage component; 80. Linkage reversing wheel; 81. Linkage insulating rope; 90. Center axis; 91. Sliding block; 92. Sliding tension spring; 93. Extension rod; 94. Sliding rope; 95. Limit axis. DETAILED DESCRIPTION

[0040] The following is combined with Figure 1-Figure 14 This application is described in further detail.

[0041] The embodiment of the present application discloses a dustproof motor and a testing device; it is mainly used in the technical field of motor preparation and testing. When the prior art tests some dustproof motors A, only no-load and load tests are performed, and its unique dustproof effect cannot be effectively and strictly tested, so its 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 not good, and the motor is prone to fall off due to vibration during operation. Embodiment 1:

[0042] First, the application discloses a dustproof motor, including a shell, a motor body is arranged in the shell, and a rotating shaft is also arranged in the shell. The rotating shaft is hollow and hidden and rotatably arranged on the motor body. A dustproof component 1 is arranged between the rotating shaft and the motor body.

[0043] The dustproof motor A is a circular ring structure, the middle of which is hollow.

[0044] See also Figure 1 and Figure 2 As shown, the dustproof component 1 includes 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.

[0045] The dust cover outer ring 10 and the dust cover inner ring 11 are made of rubber material and can be set in the gap of the dustproof motor A to prevent foreign dust from entering the interior of the dustproof motor A through the gap during the high-speed rotation of the shaft and causing damage to the interior.

[0046] The optical encoder 12 is a sensor used to detect position, speed and direction. It uses optical technology to measure the position of rotation or linear motion and converts this information into digital signals. The optical encoder 12 is usually composed of components such as a light source, a grating, a receiver, a glass code disk and a signal processor. The light source emits light, which is reflected by the grating or transmitted through different patterns to generate coded signals. The receiver receives and interprets these signals, and finally the signal processor converts them into digital signals for output.

[0047] 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 systems, robots, medical equipment and other fields.

[0048] The glass code disk in the optical encoder 12 is sensitive to dust. Once a certain amount and size of dust impurities are attached, the encoder's signal processor will identify and alarm, and control the dust-proof motor A to stop running. In the limited space of the motor, a dust cover is made to isolate the code disk from the outside world, which can effectively avoid the problem of impurity dust pollution.

[0049] In addition, see Figure 3 and Figure 4 As shown, the present application also provides a dustproof motor A testing device for detecting the above-mentioned dustproof motor A, which includes a stationary test bench 2, on which a limiter 3 is provided for limiting the dustproof motor A, and the test bench 2 is also provided with a tester 4 for performing no-load and load tests on the dustproof motor A, and the tester 4 and the limiter 3 are both arranged in the length direction of the test bench 2.

[0050] First, the limiter 3 is used to fix the dustproof motor A, and it can fix dustproof motors A of different sizes.

[0051] Tester 4 mainly performs no-load test and load test on dust-proof motor A to detect the state of dust-proof motor A under no-load condition. Dust-proof motor A is placed on the platform, connected to the power supply equipment, idling, and subjected to a 24-hour endurance test, recording the speed fluctuation at each speed point, current fluctuation and temperature rise of each part of the motor.

[0052] See also Figure 5 , Figure 6 and Figure 7As shown, the limiter 3 includes a telescopic cylinder 30 installed on the test bench 2 through a bracket, the output end of the telescopic cylinder 30 extends in the direction of the tester 4, and an L-shaped support bracket 31 is installed on the output end of the telescopic cylinder 30, the L-shaped support bracket 31 is provided with two symmetrically distributed limit clamps 32 along the height direction, and a limit strip groove for the two limit clamps 32 to move is provided on the L-shaped support bracket 31, and a bidirectional cylinder 33 is installed on the L-shaped support bracket 31, and the output ends of the bidirectional cylinder 33 are respectively connected to the two limit clamps 32.

[0053] A supporting column 34 is installed at the vertical end of the L-shaped supporting bracket 31 , and a plurality of temperature measuring devices 35 are arranged at equal intervals on the supporting column 34 .

[0054] When testing the dustproof motor A, first place the dustproof motor A on the supporting column 34 on the L-shaped supporting bracket 31, and support the weight of the dustproof motor A through the supporting column 34. Then start the two-way cylinder 33, and the telescopic ends on both sides of the two-way cylinder 33 control the two limit clamps 32 to move synchronously until the two limit clamps 32 clamp the dustproof motor A in the middle, so that the dustproof motor A is fixed between the two limit clamps 32. At this time, the dustproof motor A is concentrically distributed with the supporting column 34.

[0055] After the dustproof motor A is fixed by the limit clamp 32, the supporting column 34 is located in the middle of the dustproof motor A. At this time, the temperature detector 35 at its upper end is energized and extends outward from the inside of the supporting column 34, so that the temperature detector 35 is 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.

[0056] Then the telescopic cylinder 30 is started, and the output end of the telescopic cylinder 30 controls the L-shaped support bracket 31 to move toward the detection box 40 until the dustproof motor A passes through the detection port 41 of the detection box 40 and enters the interior thereof, and the L-shaped support bracket 31 abuts against the detection port 41 of the detection box 40 to block the detection port 41, so that the interior of the detection box 40 forms a closed state, which is convenient for various tests thereon.

[0057] See also Figure 8 and Fig. 9 As shown, it is a structural schematic diagram of testing the dustproof motor A in the present application; the tester 4 includes a test box 40 for testing the dustproof motor A, and a test port 41 for the L-shaped support bracket 31 to abut is provided at one end of the test box 40 close to the limiter 3, and a dust box 42 for storing dust is integrated at the top of the test box 40, and a large amount of sand and gravel is stored inside the dust box 42.

[0058] It should be noted that the sand and gravel are stored in the sand and dust box 42 , and the sand and gravel are existing known products, which are specially used to detect the dustproof effect of the dustproof motor A.

[0059] When sand and gravel fall toward the dust-proof motor A, the sand and gravel collide with each other, thereby generating some dust or debris generated after the collision.

[0060] The bottom of the dust box 42 and the top of the detection box 40 are integrated to form a discharge port 43 for the leakage of sand and gravel inside the dust box 42. A closed cone block 44 is abutted against the discharge port 43 of the dust box 42 along the height direction of the dust box 42. A closing spring 45 is connected between the closed cone block 44 and the inner wall of the dust box 42. A linkage plate 46 is also provided at the upper end of the closed cone block 44. A linkage groove 47 is provided on the linkage plate 46. The linkage plates 46 on several closed cone blocks 44 are staggered and tilted.

[0061] In the initial state, the closing spring 45 has a certain elastic force, and the closing spring 45 presses the closing cone block 44 downward, squeezes the closing cone block 44 to the discharge port 43 of the dust box 42, and blocks the discharge port 43 of the dust box 42.

[0062] When the dustproof motor A is subjected to a no-load test, the dustproof motor A is powered on, and the dustproof motor A is idling inside the detection box 40, and the endurance test is continuously performed for 24 hours, and the speed fluctuation at each speed point, the current fluctuation and the temperature rise of each part of the motor are recorded.

[0063] In order to further improve the accuracy of the no-load test of the dust-proof motor A and reflect the performance of the dust-proof motor A, the first closed cone block 44 inside the dust box 42 is opened to expose the first discharge port 43 at the bottom of the dust box 42. At this time, the dust begins to be exposed from the discharge port 43 at the bottom of the dust box 42 at a uniform speed, so that the sand and gravel can fall freely. During this process, the dust-proof motor A continues to perform a 24-hour endurance test, and the speed fluctuation at each speed point, the current fluctuation and the temperature rise of each part of the motor are recorded.

[0064] If the dustproof motor A alarms and shuts down during the test, it means that the optical encoder 12 in the dustproof component 1 inside the dustproof motor A detects that a large amount of dust has entered the inside of the dustproof motor A, which means that the dustproof performance of the dustproof motor A is poor.

[0065] If the dustproof motor A continues to run during the test without any shutdown, and all recorded data meet the standards, it means that the dustproof performance of the dustproof motor A is qualified.

[0066] See also Figure 8 , Fig. 9 and Fig.10 As shown, it is a structural schematic diagram for further testing the dustproof performance of the dustproof motor A in this application.

[0067] In the above, the falling of sand and gravel is achieved by opening the discharge port 43 of the dust box 42, simulating the working state of the dust-proof motor A in a dusty environment. However, the environment in different regions is also different. Therefore, the present application can also adjust the size of the dust to simulate the dust-proof motor A working in different harsh environments, so as to detect its performance; the dust box 42 is also rotatably provided with an adjusting knob 50, and the adjusting knob 50 is engraved with scale lines for adjusting the angle. The adjusting knob 50 is provided with an adjusting column 51 that horizontally rotates and extends to the inside of the dust box 42, and the adjusting column 51 is provided with an adjusting gear 52. The adjusting gear 52 is provided with a number of adjusting plates 53 at equal intervals along the length direction, and a limit tension spring 54 is installed between one side of the adjusting plate 53 and the inner wall of the dust box 42.

[0068] It should be noted that scale lines are provided on the adjusting knob 50, and the scale lines are 1, 2, 3, 4, and 5; multiple discharge ports 43 at the bottom of the dust box 42 can be opened; when the adjusting knob 50 is rotated to scale 2, the two corresponding discharge ports 43 at the bottom of the dust box 42 are opened; when the adjusting knob 50 is rotated to scale 3, the three corresponding discharge ports 43 at the bottom of the dust box 42 are opened, and so on.

[0069] The adjustment plates 53 correspond to the linkage plates 46 inside the dust box 42 one by one, and trapezoidal lifting blocks 55 are respectively installed at different positions of a plurality of adjustment plates 53 .

[0070] After the dustproof motor A performs a preliminary dust environment test in the detection box 40, the adjusting knob 50 can be turned. By turning the adjusting knob 50, the adjusting knob 50 controls the adjusting gear 52 to rotate through the concentrically arranged adjusting column 51. The adjusting gear 52 drives the first adjusting plate 53 and the first trapezoidal lifting block 55 to move toward the corresponding linkage plate 46 on the first closed cone block 44. At this time, the trapezoidal lifting block 55 squeezes the linkage groove 47 on the linkage plate 46, so that the linkage plate 46 controls the first closed cone block 44 to move upward, thereby opening the first discharge port 43 on the dust box 42.

[0071] During this process, the multiple adjustment plates 53 inside the dust box 42 also move synchronously to the same position, but the multiple adjustment plates 53 are staggered, and the trapezoidal lifting blocks 55 on other adjustment plates 53 do not contact the corresponding linkage plates 46, but move a certain distance toward the corresponding linkage plates 46, and the distance of the staggered position between adjacent adjustment plates 53 is the distance of one scale line each time the adjustment knob 50 rotates. Several adjustment plates 53 are provided with sawtooth structures that mesh with the adjustment gear 52, but it should be noted that the sawtooth structures on the several adjustment plates 53 are of different lengths, and the sawtooth structures on the adjustment plates 53 gradually increase in sequence along the width direction of the dust box 42.

[0072] Then, the adjusting knob 50 is turned, and the adjusting knob 50 drives the second adjusting plate 53 to move toward the second closed cone block 44. At this time, the serrated structure of the first adjusting plate 53 is separated from the adjusting gear 52, and the first adjusting plate 53 cannot move or retract. Then, the trapezoidal lifting block 55 on the second adjusting plate 53 lifts the linkage plate 46 on the second closed cone block 44, thereby opening the second discharge port 43 in the dust box 42.

[0073] Then, by analogy, all the discharge ports 43 at the bottom of the dust box 42 can be opened.

[0074] By adjusting the knob 50, the intensity of the dustproof test of the dustproof motor A can be changed, which greatly ensures the accuracy of the dustproof motor A test.

[0075] Furthermore, when sand and gravel fall freely downward, they cannot directly act on the position of the rotating shaft of the dust-proof motor A. The sand and gravel will fall on the outer casing of the dust-proof motor A. In order to ensure that the sand and gravel can accurately act on the position where the dust-proof motor A rotates at high speed.

[0076] See also Fig.10 and Fig.11 As shown, the present application further proposes a blowing component 7, and a blowing component 7 is also provided at the side end of the dust box 42, the blowing component 7 includes blowing fan blades 70, and a horizontally distributed strip through grooves 71 are opened on one side of the dust box 42, and a plurality of blowing fan blades 70 are installed at equal intervals in the strip through grooves 71, and a passive metal connector 72 is connected to one side of the plurality of blowing fan blades 70 through a wire, and an active metal connector 73 is movably provided on the passive metal connector 72, and the active metal connector 73 is arranged in a blowing box 75, and the blowing box 75 is installed at one end of the dust box 42 close to the blowing fan blades 70.

[0077] A return tension spring 74 is connected between the active metal connector 73 and the inner wall of the blowing box 75 .

[0078] When the first discharge port 43 inside the dust box 42 is opened, the corresponding first blowing fan blade 70 inside the 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, causing the sand and gravel to fall in the direction of the dustproof motor A. At this time, the sand and gravel will approach the side of the rotating shaft of the dustproof motor A during the falling process, thereby effectively detecting its dustproof effect.

[0079] Correspondingly, when the dust box 42 opens multiple discharge ports 43 to drop a large amount of sand and gravel downward, the effect of a single blowing fan blade 70 is poor, so a plurality of blowing fan blades 70 are correspondingly provided, and the opening and closing of the discharge ports 43 are linked with the blowing fan blades 70 through the linkage component 8, and the same blowing fan blades 70 are opened corresponding to opening several discharge ports 43, so as to ensure that the sand and gravel can simulate the real dust environment inside the detection box 40, as shown below: Look again Fig.10 As shown, a linkage component 8 is also arranged between the blowing component 7 and the tester 4, and the linkage component 8 includes a linkage reversing wheel 80 and a linkage insulating rope 81. The linkage reversing wheel 80 is rotatably arranged on the dust box 42 through a bracket, one end of a plurality of linkage insulating ropes 81 is respectively connected to a plurality of adjustment plates 53, and the other ends of a plurality of linkage insulating ropes 81 are respectively connected to a plurality of active metal connectors 73, the middle part of the linkage insulating rope 81 is sleeved on the linkage reversing wheel 80, and the linkage insulating rope 81 is passed from the middle part of the passive metal connector 72 to the active metal connector 73.

[0080] It should be noted that the spacing between the active metal connectors 73 and the passive metal connectors 72 gradually increases.

[0081] When the adjustment plate 53 inside the dust box 42 moves toward the linkage plate 46, the adjustment plate 53 drives the active metal connector 73 to approach the passive metal connector 72 through the linkage insulating rope 81. When the first discharge port 43 is opened, the corresponding first active metal connector 73 contacts the first passive metal connector 72, so that the corresponding first blowing fan blade 70 is powered on and started. Similarly, after the second discharge port 43 is opened, the corresponding second blowing fan blade 70 is powered on and started.

[0082] The linkage component 8 can ensure that the blowing fan blades 70 and the falling sand and gravel are linked, thereby simulating the dustproof motor A to work in different degrees of complex environments, and further testing its performance in different degrees of complex environments. Embodiment 2:

[0083] Furthermore, the present application also proposes a second embodiment: the temperature detector 35 on the supporting column 34 is expanded so that it always fits on the inner wall of the dustproof motor A.

[0084] See also Fig.12 and Fig.13 As shown, the supporting column 34 is a hollow structure, and a central axis 90 is installed inside. A plurality of sliding blocks 91 are arranged on the central axis 90 at equal intervals. A sliding tension spring 92 is connected to one end of the sliding block 91 and the central axis 90. An extension rod 93 is hinged on the sliding block 91. One end of the extension rod 93 away from the sliding block 91 is connected to the temperature detector 35. The supporting column 34 is provided with a placement groove for placing the temperature detector 35.

[0085] One side of the sliding block 91 is connected to a sliding rope 94 , and the other end of the sliding rope 94 passes through the L-shaped support bracket 31 and is connected to the bracket of the telescopic cylinder 30 .

[0086] An expansion slot is formed on the expansion rod 93 , and a limit shaft 95 is disposed in the expansion slot. The limit shaft 95 is installed in a placement slot on the supporting column 34 .

[0087] When the telescopic cylinder 30 controls the L-shaped support bracket 31 to move toward the detection box 40, the sliding rope 94 is straightened. At this time, the sliding rope 94 drives the sliding block 91 to move toward the telescopic cylinder 30. At this time, the sliding block 91 squeezes the inclined extension rod 93, so that the end of the extension rod 93 connected to the thermometer 35 extends outward until the thermometer 35 rests on 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:

[0088] Reference Fig.14 As shown, on the basis of Example 1, in order to further ensure the accuracy of the dustproof motor A detection, the present application also proposes a sand and gravel circulation component 6. When sand and gravel fall from top to bottom inside the dust box 42, the sand and gravel will gradually accumulate at the bottom of the dust box 42. When the sand and gravel gradually accumulate, the sand and gravel accumulated at the bottom of the dust box 42 will submerge the dustproof motor A, thereby causing damage to the dustproof motor A; further, when sand and gravel accumulate at the bottom of the dust box 42, it needs to be cleaned manually, which affects the efficiency of the dustproof motor A detection. Therefore, the present application proposes a sand and gravel circulation component 6 to solve the above problem.

[0089] For details, see Fig.14 As shown, a sand and gravel collecting plate 60 with an inverted cone structure is also provided at the bottom of the detection box 40 , and a sand and gravel circulation component 6 is integrally installed at the bottom of the sand and gravel collecting plate 60 .

[0090] The sand and gravel circulation component 6 includes a circulation roller 61, a circulation conveyor belt 62 and a circulation conveyor frame 63. The circulation roller 61 is symmetrically rotatable and arranged on the outer wall of the sand and dust box 42. The circulation conveyor belt 62 is sleeved on the circulation roller 61. The circulation conveyor frame 63 is installed on the circulation conveyor belt 62 at equal intervals, and the tail end of the circulation conveyor belt 62 is arranged at the bottom of the sand and dust box 42. A circulation motor 64 is provided on one side of the circulation roller 61.

[0091] During specific implementation, the circulation motor 64 is started, and the circulation motor 64 drives the circulation roller 61 to rotate, and the circulation roller 61 drives the circulation conveyor belt 62 to rotate at a uniform speed. At this time, the circulation conveyor frame 63 on the circulation conveyor belt 62 moves along the movement trajectory of the circulation conveyor belt 62. When the circulation conveyor frame 63 moves to the bottom of the detection box 40, the sand and gravel accumulated at the bottom of the detection box 40 are collected, and then transported to the dust box 42 through the circulation conveyor belt 62 for the same storage. In this way, the sand and gravel inside the dust box 42 can be avoided from being depleted, and the dust box 42 can be automatically and continuously replenished.

[0092] During operation: The first step is to test the dustproof motor A. First, place the dustproof motor A on the supporting column 34 on the L-shaped supporting bracket 31, and support the weight of the dustproof motor A through the supporting column 34. Then start the two-way cylinder 33. The telescopic ends on both sides of the two-way cylinder 33 control the two limit clamps 32 to move synchronously until the two limit clamps 32 clamp the dustproof motor A in the middle, so that the dustproof motor A is fixed between the two limit clamps 32. At this time, the dustproof motor A and the supporting column 34 are concentrically distributed.

[0093] Step 2: The telescopic cylinder 30 is started, and the output end of the telescopic cylinder 30 controls the L-shaped support bracket 31 to move toward the detection box 40 until the dustproof motor A passes through the detection port 41 of the detection box 40 and enters the interior thereof, and the L-shaped support bracket 31 abuts against the detection port 41 of the detection box 40, and the sliding rope 94 is straightened. At this time, the sliding rope 94 drives the sliding block 91 to move toward the telescopic cylinder 30. At this time, the sliding block 91 squeezes the inclined extension rod 93, so that the end of the extension rod 93 connected to the temperature sensor 35 extends outward until the temperature sensor 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.

[0094] Step 3: When the dustproof motor A is subjected to no-load test, the dustproof motor A is powered on. At this time, the dustproof motor A is subjected to idling operation inside the detection box 40, and the endurance test is continuously performed for 24 hours, and the speed fluctuation at each speed point, the current fluctuation and the temperature rise of each part of the motor are recorded.

[0095] Step 4: In order to further improve the accuracy of the no-load test of the dust-proof motor A and reflect the performance of the dust-proof motor A, open the first closed cone block 44 inside the dust box 42 to expose the first discharge port 43 at the bottom of the dust box 42. At this time, the dust begins to be exposed from the discharge port 43 at the bottom of the dust box 42 at a uniform speed, so that the sand and gravel can fall freely. During this process, the dust-proof motor A continues to perform a 24-hour endurance test, and records the speed fluctuations at each speed point, the current fluctuations and the temperature rise of each part of the motor.

[0096] Step 5: After the dustproof motor A undergoes a preliminary dust environment test in the detection box 40, the adjustment knob 50 can be turned to open all the discharge ports 43 at the bottom of the dust box 42 in sequence; by adjusting the knob 50, the intensity of the dustproof test of the dustproof motor A can be changed, which greatly ensures the accuracy of the dustproof motor A test.

[0097] Step 6: When the first discharge port 43 inside the dust box 42 is opened, the corresponding first blowing fan blade 70 inside the 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, causing the sand and gravel to fall in the direction of the dustproof motor A. At this time, the sand and gravel will approach the side of the rotating shaft of the dustproof motor A during the falling process, thereby effectively detecting its dustproof effect.

[0098] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A dustproof motor, comprising a stationary housing, a motor body is arranged in the housing, a rotating shaft is also arranged in the housing, the rotating shaft is hollow and hidden, and the rotating shaft is arranged on the motor body, characterized in that: A dustproof component (1) is provided between the rotating shaft and the motor body; 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) abuts between the motor body and the rotating shaft, the dust cover inner ring (11) abuts 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).

2. A dustproof motor testing device, using the dustproof motor according to claim 1, characterized in that: The dustproof motor testing device comprises a stationary test bench (2), the test bench (2) being provided with a stopper (3) for limiting the position of the dustproof motor, the test bench (2) being further provided with a tester (4) for detecting the dustproof effect of the dustproof cover outer ring (10) and the dustproof cover inner ring (11) of the dustproof motor, the tester (4) and the stopper (3) being both arranged in the length direction of the test bench (2).

3. A dustproof motor testing device according to claim 2, characterized in that: The limiter (3) comprises a telescopic cylinder (30) mounted on the test bench (2) via a bracket, the output end of the telescopic cylinder (30) extending in the direction of the tester (4), and an L-shaped support bracket (31) is mounted on the output end of the telescopic cylinder (30), the L-shaped support bracket (31) is provided with two symmetrically distributed limit clamps (32) along the height direction, and the L-shaped support bracket (31) is provided with a limit strip groove for the two limit clamps (32) to move, and a bidirectional cylinder (33) is mounted on the L-shaped support bracket (31), and the output end of the bidirectional cylinder (33) is respectively connected to the two limit clamps (32); A supporting column (34) is installed at the vertical end of the L-shaped supporting frame (31), and a plurality of temperature measuring devices (35) are arranged at equal intervals on the supporting column (34).

4. A dustproof motor testing device according to claim 2, characterized in that: The tester (4) comprises a test box (40) for testing the dustproof motor, an end of the test box (40) close to the stopper (3) is provided with a test port (41) for the L-shaped support bracket (31) to abut against, and a dust box (42) for storing sand and gravel is integrally provided on the top of the test box (40), and a large amount of sand and gravel is stored inside the dust box (42); The bottom of the dust box (42) and the top of the detection box (40) are integrated with a discharge port (43) for leaking sand and gravel inside the dust box (42); a closed cone block (44) is abutted against the discharge port (43) of the dust box (42) along the height direction of the dust box (42); a closing spring (45) is connected between the closed cone block (44) and the inner wall of the dust box (42); a linkage plate (46) is further provided at the upper end of the closed cone block (44); a linkage groove (47) is provided on the linkage plate (46); and a plurality of linkage plates (46) on the closed cone blocks (44) are staggered and tilted.

5. A dustproof motor testing device according to claim 4, characterized in that: The dust box (42) is also provided with an adjusting knob (50) which is rotatable, and the adjusting knob (50) is engraved with scale lines for adjusting angles. The adjusting knob (50) is provided with an adjusting column (51) which is horizontally rotatable and extends toward the inside of the dust box (42), and the adjusting column (51) is provided with an adjusting gear (52). The adjusting gear (52) is provided with a plurality of adjusting plates (53) at equal intervals along the length direction, and a limit tension spring (54) is installed between one side of the adjusting plate (53) and the inner wall of the dust box (42).

6. A dustproof motor testing device according to claim 5, characterized in that: The adjustment plates (53) correspond one to one with the linkage plates (46) inside the dust box (42), and trapezoidal lifting blocks (55) are respectively installed at different positions of the plurality of adjustment plates (53); the distances between the trapezoidal lifting blocks (55) and the linkage plates (46) on the plurality of adjustment plates (53) are equidistantly increased.

7. The dustproof motor testing device according to claim 4, characterized in that: A blowing component (7) is further provided at the side end of the dust box (42), the blowing component (7) comprising a blowing fan blade (70), a horizontally distributed strip through slot (71) is opened on one side of the dust box (42), a plurality of blowing fan blades (70) are installed at equal intervals in the strip through slot (71), a passive metal connector (72) is connected to one side of the plurality of blowing fan blades (70) via a wire, an active metal connector (73) is movably provided on the passive metal connector (72), the active metal connector (73) is arranged in a blowing box (75), and the blowing box (75) is installed at one end of the dust box (42) close to the blowing fan blade (70); A return tension spring (74) is connected between the active metal connector (73) and the inner wall of the blowing box (75).

8. The dustproof motor testing device according to claim 7, characterized in that: A linkage component (8) is further provided between the blowing component (7) and the tester (4), the linkage component (8) comprising a linkage reversing wheel (80) and a linkage insulating rope (81), the linkage reversing wheel (80) being rotatably disposed on the dust box (42) via a bracket, one end of a plurality of the linkage insulating ropes (81) being respectively connected to a plurality of adjustment plates (53), and the other ends of a plurality of the linkage insulating ropes (81) being respectively connected to a plurality of active metal connectors (73), the middle portion of the linkage insulating rope (81) being sleeved on the linkage reversing wheel (80), and the linkage insulating rope (81) being passed through the middle portion of the passive metal connector (72) to the active metal connector (73).

9. The dustproof motor testing device according to claim 2, characterized in that: The test bench (2) is provided with a power supply device for supplying power to the dustproof motor.

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