CN116449046A - Motor rotation speed tracking starting speed detection system and method - Google Patents
Motor rotation speed tracking starting speed detection system and method Download PDFInfo
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- CN116449046A CN116449046A CN202310719400.7A CN202310719400A CN116449046A CN 116449046 A CN116449046 A CN 116449046A CN 202310719400 A CN202310719400 A CN 202310719400A CN 116449046 A CN116449046 A CN 116449046A
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- 238000001514 detection method Methods 0.000 title claims abstract description 65
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- 238000005286 illumination Methods 0.000 abstract description 10
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/484—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by contact-making switches
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P1/00—Details of instruments
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Abstract
The invention relates to the field of motor detection, in particular to a motor rotating speed tracking starting speed detection system and a motor rotating speed tracking starting speed detection method, wherein the motor rotating speed tracking starting speed detection system comprises a detection workbench, a motor supporting seat, a return-type frame, an adjusting component and a detection component; the invention can solve the following problems in the process of detecting the rotating speed of the motor in the prior art: when the illumination emitted by the light condensation component passes through the light guide hole on the rotary turntable, the signal induced by the illumination receiving component is a flickering light ray with weak brightness, so that the illumination receiving component cannot accurately receive the weak signal, further cannot accurately count, and the detection precision of the motor rotation speed is affected; the rotating turntable is not fixed with the motor rotating shaft, so that the motor is easy to rotate relative to the motor rotating shaft under the action of inertia when started and stopped, the number of rotation of the motor rotating shaft cannot be accurately detected, the motor rotating speed cannot be accurately calculated, and deviation exists.
Description
Technical Field
The invention relates to the field of motor detection, in particular to a motor rotating speed tracking starting speed detection system and method.
Background
In the manufacturing process of the motor, in order to ensure the later use effect of the motor, the rotating speed of the motor needs to be detected, so that the slip of the motor is measured, and the quality of the motor is ensured to meet the requirements.
The current detection of the motor rotation speed comprises a light reflection method, a magneto-electric method, a Hall switch detection method and a grating method, wherein the grating method is to fix a disc provided with a light transmission groove on a rotating shaft of the motor, and a light emitting element and a light receiving element are arranged on two sides of the disc; when the rotating shaft of the motor rotates, the light receiving element periodically receives illumination and generates electric pulses, and the pulses are counted in a certain time, so that the rotating speed of the motor is converted.
In the prior art, a device for detecting the rotation speed of a motor is also disclosed, wherein, as disclosed in Chinese patent publication No. CN114778878A, a motor rotation speed measuring device, a motor rotation speed measuring method and a motor comprise a rotary turntable, wherein the rotary turntable is sleeved on a motor rotation shaft, and a light guide hole is arranged on the rotary turntable; the light condensing component is arranged on one side of the rotary turntable and used for emitting illumination to the rotary turntable; the illumination receiving assembly is arranged on one side of the rotary turntable, which is far away from the light condensing assembly, and is used for receiving an induction signal of the light condensing assembly and calculating the rotating speed of the motor according to the induction signal; the processor is electrically connected with the illumination receiving assembly and is used for receiving the induction signals of the light condensing assembly to calculate the rotating speed of the motor.
When the rotary table is used, the rotary table is driven to rotate through the motor rotating shaft, so that the rotating speed of the motor rotating shaft is obtained by measuring the rotating speed of the rotary table; when the motor rotates, the rotary turntable drives the light guide hole and the rotating shaft of the motor to synchronously move, and when the light guide hole, the light gathering component and the light receiving component are positioned on the same straight line, the light receiving component receives light, outputs induction signals to the processor, and the number of times of the induction signals detected by the processor is counted once in an accumulated manner; the processor calculates the motor rotation speed according to the starting time and the number of times of the induction signals received in the starting time.
However, in the process of detecting the rotation speed of the motor using the above-described prior art, there are the following disadvantages:
1. because the pivot drives the high rotation of rotatory carousel, when consequently the illumination that spotlight subassembly sent passes the leaded light hole on the rotatory carousel, the signal of response on the illumination receiving element is the scintillation light, but the luminance ratio of the light under the scintillation state is weak to the illumination receiving element can't accurately receive weak signal, and then can't accurate count, influences the detection precision to motor rotational speed.
2. Because the rotary turntable is sleeved on the outer wall of the motor rotating shaft, the rotary turntable and the motor rotating shaft are not correspondingly fixed in the prior art, and therefore, when the motor is started and stopped, the rotary turntable is easy to rotate relative to the motor rotating shaft under the action of inertia, the number of rotation turns of the motor rotating shaft cannot be accurately detected, the motor rotating speed cannot be accurately calculated, and deviation exists.
Therefore, under the above-stated viewpoints, the motor rotation speed detection means of the related art has room for improvement.
Disclosure of Invention
In order to solve the problems, the invention provides a motor rotating speed tracking starting speed detection system, which comprises a detection workbench, wherein a motor supporting seat and a return-type frame are sequentially arranged at the upper end of the detection workbench along the length direction of the detection workbench, positioning columns are arranged at the four corners of the upper end of the motor supporting seat, the return-type frame is in sliding connection with the upper end of the detection workbench, an adjusting part is arranged in the return-type frame and between the return-type frame and the detection workbench, the return-type frame is provided with the detection part through the adjusting part in the return-type frame, and the adjusting part comprises two displacement blocks which are in sliding connection with the inner side wall of the return-type frame.
The detection component comprises an annular frame arranged between two displacement blocks, the inner wall of the annular frame is rotationally connected with a rotary sleeve, a clamping assembly used for fixing a motor rotating shaft is arranged in the rotary sleeve, the clamping assembly comprises a plurality of clamping blocks which are slidably connected inside the rotary sleeve, a positioning assembly is arranged between the rotary sleeve and the clamping assembly, a counting assembly is arranged between the rotary sleeve and the annular frame, and the counting assembly comprises a counter arranged at one side end part of the annular frame far away from a motor supporting seat.
Preferably, the clamping assembly further comprises a rotating rod, one side, close to the motor supporting seat, of the rotating sleeve is uniformly and rotatably connected with a plurality of rotating rods which are annularly distributed, the rotating rods are connected through a belt, a plurality of circular grooves which are annularly distributed are uniformly formed in the rotating sleeve, the circular grooves are uniformly distributed along the axial direction of the rotating sleeve, and a plurality of cams which are rotatably connected in the circular grooves are sleeved on the outer wall of the rotating rod;
the holding groove has been seted up to one side that the circular groove is close to the rotatory sleeve axis, and grip block sliding connection is in the holding groove, and is provided with two shrink springs along its width direction symmetry between grip block and the holding groove inner wall.
Preferably, one side of the clamping block, which is close to the rotating sleeve, is an arc-shaped concave surface for increasing the contact area between the clamping block and the rotating shaft of the motor, and a plurality of arc-shaped anti-slip strips are arranged on one side of the clamping block, which is close to the rotating sleeve, at equal intervals along the axial direction of the clamping block.
Preferably, the positioning assembly comprises a linkage wheel, the end part of the rotating rod, which is close to one side of the motor supporting seat, is provided with a plurality of fixed plates with the same number as the rotating rods, which are arranged on one side of the rotating sleeve, which is far away from the axis of the rotating sleeve, and a limiting block is arranged on one side of the fixed plate, which is close to the axis of the rotating sleeve, through pushing the spring rod;
the outer wall of the linkage wheel is uniformly provided with a plurality of annularly distributed protrusions, the outer wall of each protrusion is an arc convex surface, and arc grooves matched with the limiting blocks are formed between two adjacent protrusions.
Preferably, the counting assembly further comprises a bearing plate, the bearing plate is arranged at one side end part of the annular frame, far away from the motor supporting seat, of the annular frame, the bearing plate is located above the rotating sleeve, the counter is arranged at the upper end of the bearing plate through the supporting frame, the lower end of the counter is provided with a touch switch, a connecting groove is formed in the bearing plate, an auxiliary block is connected inside the connecting groove in a sliding mode, a push rod is arranged at the upper end of the auxiliary block, and the upper end of the push rod is contacted with the touch switch after passing through the connecting groove.
Preferably, the counting assembly further comprises a jacking spring rod, two jacking spring rods are symmetrically arranged between the upper end of the auxiliary block and the inner top wall of the connecting groove in the width direction of the auxiliary block, a jacking block is arranged on one side, far away from the motor supporting seat, of the outer side wall of the rotating sleeve, and the jacking block is in sliding contact with the lower end of the auxiliary block.
Preferably, the adjusting part further comprises a longitudinal sliding groove, two longitudinal sliding grooves are symmetrically formed in the inner side wall of the return frame along the width direction of the detection workbench, the displacement block is slidably connected in the longitudinal sliding groove, first screws penetrating through the displacement block in a threaded fit mode are rotationally connected in the longitudinal sliding groove, and the two first screws are connected through belt transmission.
Preferably, the adjusting part further comprises a guide chute, the upper end of the detection workbench is provided with the guide chute at the lower end of the return frame, the support block connected with the lower end of the return frame is connected in a sliding manner in the guide chute, and the second screw rod penetrating through the support block in a threaded fit manner is connected in a rotating manner in the guide chute.
In addition, the invention also provides a motor rotating speed tracking starting speed detection method, which comprises the following steps: s1: and (3) motor installation: placing the motor to be detected at the upper end of a motor supporting seat, sleeving a motor base hole on a positioning column, and limiting and fixing the motor;
s2: fixing a motor rotating shaft: the detection part is driven to move to the motor rotating shaft through the adjusting part, and the detection part is fixed on the outer wall of the motor rotating shaft;
s3: detecting the rotation speed of a motor: the motor is started, and the rotating speed of the rotating shaft of the motor is detected through the detecting component.
S4: and (3) taking down the motor: and (5) releasing the fixation between the detection part and the motor rotating shaft, and then taking down the motor.
In summary, the present application includes at least one of the following beneficial technical effects:
1. according to the invention, the first screw rod is rotated, so that the first screw rod drives the displacement block, the annular frame and the rotary sleeve to move up and down integrally; the position of the rotary sleeve is adjusted according to the position of the motor rotating shaft, so that the rotary sleeve and the motor rotating shaft are positioned on the same axis; and then the second screw rod is rotated, and the second screw rod drives the supporting block, the return frame, the annular frame and the rotating sleeve to integrally move to one side close to the motor, so that the rotating sleeve can be smoothly sleeved on the outer wall of the rotating shaft of the motor, and the operation is convenient.
2. According to the invention, the rotating sleeve and the top contact block of the outer wall of the rotating sleeve are driven to rotate through the motor rotating shaft, the top contact block of the outer wall of the rotating sleeve is abutted against the bottom of the auxiliary block every time the rotating sleeve rotates for one circle, the auxiliary block drives the jacking rod to apply an abutting force to the touch switch, and the counter counts once at the moment; therefore, when the motor rotating shaft drives the rotating sleeve to rotate for a circle, the counter counts up and counts once, so that the accuracy of counting the number of turns of the motor rotating shaft is ensured, deviation can not occur, and further the detection accuracy of the motor rotating speed is ensured.
3. According to the invention, the motor rotating shaft can be clamped and fixed in multiple directions through the interference between the clamping blocks and the motor rotating shaft, so that the motor rotating shaft and the rotating sleeve are ensured to be in a fixed state, and the rotating sleeve can be driven to synchronously rotate when the motor rotating shaft rotates; when the motor rotating shaft starts or stops rotating, the rotating sleeve cannot rotate relative to the motor rotating shaft, so that the rotating number of turns of the rotating sleeve is ensured to be consistent with that of the motor rotating shaft; and can control the distance that the grip block stretched out the holding tank and carry out the centre gripping to the motor shaft of different diameters and fix, and then be convenient for carry out the rotational speed to the motor of different models and detect.
4. According to the invention, the contact area between the clamping block and the motor rotating shaft can be increased through the arc-shaped concave surface of the inner side wall of the clamping block, the friction force between the clamping block and the motor rotating shaft can be increased, and the friction force between the clamping block and the motor rotating shaft can be further increased through the arc-shaped anti-slip strip, so that the relative rotation between the rotating sleeve and the motor rotating shaft is effectively prevented.
5. According to the invention, the limiting block is abutted against the arc-shaped groove to limit and fix the linkage wheel, so that the rotating rod is limited and fixed, and the phenomenon that the interference force of the cam to the clamping block is reduced due to random rotation of the rotating rod is avoided, so that the clamping block can always apply clamping force to the motor rotating shaft.
Drawings
The invention will be further described with reference to the drawings and examples.
Fig. 1 is a first structural schematic of the present invention.
Fig. 2 is a second structural schematic of the present invention.
Fig. 3 is a schematic view of the structure between the regulating member and the detecting member of the present invention.
FIG. 4 is a schematic structural view of the detecting unit of the present invention.
Fig. 5 is an enlarged view of a portion of fig. 4 a of the present invention.
FIG. 6 is a schematic diagram of the counting assembly of the present invention.
FIG. 7 is a schematic view of the structure between the ring frame, rotating sleeve and clamping assembly of the present invention.
Fig. 8 is an enlarged view of a portion of the invention at B of fig. 7.
Fig. 9 is a first operational state diagram between the clamping block and the cam of the present invention.
Fig. 10 is a second operational state diagram between the clamping block and the cam of the present invention.
In the figure, 1, a detection workbench; 2. a motor support base; 3. a return-type frame; 4. an adjusting member; 5. a detection section;
41. a displacement block; 42. a longitudinal chute; 43. a first screw; 44. a guide chute; 45. a support block; 46. a second screw;
51. an annular frame; 52. rotating the sleeve; 53. a clamping assembly; 54. a positioning assembly; 55. a counting assembly;
531. a clamping block; 532. a rotating lever; 533. a circular groove; 534. a cam; 535. a retraction spring; 536. arc-shaped anti-slip strips;
541. a linkage wheel; 542. a fixing plate; 543. pushing the spring rod; 544. a limiting block; 545. a protrusion;
551. a counter; 552. a bearing plate; 553. a touch switch; 554. an auxiliary block; 555. a push rod; 556. pushing and extending a spring rod; 557. and (5) pushing the contact block.
Detailed Description
Embodiments of the invention are described in detail below with reference to fig. 1-10, but the invention can be practiced in many different ways as defined and covered by the claims.
The embodiment of the application discloses a motor rotating speed tracking starting speed detection system, which is mainly applied to the process of detecting the motor rotating speed, and can detect the rotating number of turns of a motor rotating shaft in technical effect, calculate the rotating speed of a motor according to the rotating number of turns of the motor rotating shaft in a certain time, and particularly fix a rotating sleeve 52 with the motor rotating shaft in the detection process, so that the motor rotating shaft drives the rotating sleeve 52 to synchronously rotate, and the detection precision is prevented from being influenced by the relative rotation between the rotating sleeve 52 and the motor rotating shaft; and the number of turns of the rotary sleeve 52 is counted, and the counter 551 counts up once every time the rotary sleeve 52 rotates, so that the accuracy of counting the number of turns of the motor rotating shaft is ensured, and no deviation occurs; furthermore, the motor rotating speed tracking starting speed detection system can also detect the rotating speeds of motors of different models.
Embodiment one:
referring to fig. 1, a motor rotation speed tracking start-up speed detecting system, including detecting the workstation 1, detecting the workstation 1 upper end and installing motor supporting seat 2 and returning type frame 3 in proper order along its length direction, motor supporting seat 2 upper end is located its four corners and all is provided with the reference column, returns type frame 3 sliding connection and is detecting the workstation 1 upper end, returns type frame 3 inside and with detecting the workstation 1 between be provided with adjusting part 4, return type frame 3 installs detecting part 5 through its inside adjusting part 4, adjusting part 4 includes two sliding connection at the displacement piece 41 that returns type frame 3 inside wall.
In practical application, firstly, a motor to be detected is placed at the upper end of a motor supporting seat 2, and a motor base hole is sleeved on a positioning column, so that the motor is limited and fixed, the stability of the motor in the detection process is ensured, the influence of random shaking of the motor on the detection effect is avoided, and the damage of a motor rotating shaft is easily caused; then the adjusting part 4 drives the detecting part 5 to move to the motor rotating shaft through the loop-shaped frame 3, and the detecting part 5 is fixed on the outer wall of the motor rotating shaft; then the motor is started, and the rotation speed of the motor rotation shaft is detected by the detecting part 5.
Referring to fig. 2, 3, 4 and 5, in order to detect the rotation speed of the motor shaft, it is necessary to test the number of rotations of the motor shaft, and then calculate the rotation speed of the motor shaft according to the number of rotations of the motor shaft in a certain time; based on this, the present invention provides the corresponding detecting part 5, specifically, the detecting part 5 includes an annular frame 51 disposed between two displacement blocks 41, the inner wall of the annular frame 51 is rotatably connected with a rotary sleeve 52, a clamping component 53 for fixing the motor shaft is installed inside the rotary sleeve 52, the clamping component 53 includes a plurality of clamping blocks 531 slidably connected inside the rotary sleeve 52, a positioning component 54 is disposed between the rotary sleeve 52 and the clamping component 53, and a counting component 55 is installed between the rotary sleeve 52 and the annular frame 51, and the counting component 55 includes a counter 551 installed at one side end of the annular frame 51 far from the motor support seat 2.
In the specific implementation process, after the motor is placed, the loop frame 3 drives the rotary sleeve 52 to be sleeved on the outer wall of the rotating shaft of the motor through the annular frame 51, then the rotary sleeve 52 and the rotating shaft of the motor are fixed through the clamping component 53, and when the rotating shaft of the motor rotates, the rotary sleeve 52 can be driven to synchronously rotate; the rotating sleeve 52 then counts the number of turns of the motor shaft by the counting assembly 55.
Referring to fig. 2 and 3, since the motor has a plurality of different models, the position of the motor shaft is also different; before the detecting component 5 detects the rotation speed of the motor rotating shaft, the rotating sleeve 52 needs to be sleeved on the outer wall of the motor rotating shaft, so that the rotating sleeve 52 needs to be correspondingly adjusted according to the position of the motor rotating shaft; based on the above, the invention provides a corresponding adjusting part 4, in particular, the adjusting part 4 further comprises a longitudinal chute 42, two longitudinal chutes 42 are symmetrically arranged on the inner side wall of the return frame 3 along the width direction of the detection workbench 1, the displacement block 41 is slidably connected in the longitudinal chute 42, a first screw 43 penetrating through the displacement block 41 in a threaded fit manner is rotatably connected in the longitudinal chute 42, and the two first screws 43 are connected through belt transmission; one of the first screws 43 is rotated, and the other first screw 43 can be rotated synchronously.
In the specific implementation process, the first screw 43 is rotated, and the first screw 43 rotates and drives the displacement block 41 to move up and down along the longitudinal chute 42, and the displacement block 41 drives the annular frame 51 and the rotary sleeve 52 to integrally and synchronously move; the position of the rotary sleeve 52 is adjusted according to the position of the motor rotating shaft, so that the rotary sleeve 52 and the motor rotating shaft are positioned on the same axis, and the rotary sleeve 52 is conveniently sleeved on the outer wall of the motor rotating shaft.
Further, in order to avoid blocking the placement of the motor, a certain distance is required between the return frame 3 and the rotating sleeve 52 and the motor support seat 2 in the initial state; after the motor is placed, the return frame 3 and the rotary sleeve 52 are integrally reset, so that the motor is placed conveniently, the rotary sleeve 52 can be smoothly sleeved on the outer wall of the motor rotating shaft, and based on the fact, in the embodiment, the adjusting part 4 further comprises a guide chute 44, the upper end of the detection workbench 1 is positioned at the lower end of the return frame 3, the guide chute 44 is provided with a guide chute 44, a supporting block 45 connected with the lower end of the return frame 3 is slidably connected in the guide chute 44, and a second screw 46 penetrating through the supporting block 45 in a threaded fit mode is rotationally connected in the guide chute 44.
In the specific implementation process, the second screw 46 is rotated, and the second screw 46 rotates and drives the supporting block 45 to move along the guide chute 44; because the rotating sleeve 52 corresponds to the axis of the motor rotating shaft, after the motor is placed, the support block 45 drives the return frame 3, the annular frame 51 and the rotating sleeve 52 to integrally move to one side close to the motor, so that the rotating sleeve 52 can be smoothly sleeved on the outer wall of the motor rotating shaft, and the operation is convenient.
After the motor rotation speed detection is completed, the counter-rotating second screw 46 rotates and drives the supporting block 45, the return frame 3, the annular frame 51 and the rotating sleeve 52 to integrally move to the side far away from the motor, so that the rotating sleeve 52 is separated from the outer wall of the motor rotation shaft, and the motor is conveniently taken down from the motor supporting seat 2.
Referring to fig. 5 and 6, in detecting the rotation speed of the motor, it is necessary to detect the number of turns of the rotation shaft of the motor; in this embodiment, in order to more accurately detect the number of turns of the motor shaft, a corresponding counting assembly 55 is provided; specifically, the counting assembly 55 further comprises a supporting plate 552, the supporting plate 552 is installed at one side end portion, far away from the motor supporting seat 2, of the annular frame 51, the supporting plate 552 is located above the rotating sleeve 52, the counter 551 is installed at the upper end of the supporting plate 552 through a supporting frame, a touch switch 553 is arranged at the lower end of the counter 551, a connecting groove is formed in the supporting plate 552, an auxiliary block 554 is slidingly connected in the connecting groove, a push rod 555 is installed at the upper end of the auxiliary block 554, and the upper end of the push rod 555 is contacted with the touch switch 553 after passing through the connecting groove.
In the embodiment, the touch switch 553 and the counter 551 are matched for use, and when the touch switch 553 is in conflict, the counter 551 can be controlled to count once; in addition, the rotating sleeve 52 is sleeved on the outer wall of the motor rotating shaft, so that the motor rotating shaft can drive the rotating sleeve 52 to synchronously rotate; further, the number of turns of the rotating sleeve 52 can be detected, so that the number of turns of the rotating shaft of the motor can be obtained, and the number of turns of the rotating sleeve 52 can be counted up through the counter 551.
Further, in order to facilitate counting of the number of turns of the rotary sleeve 52, the counter 551 is controlled to count by the touch switch 553; specifically, the counting assembly 55 further includes a spring rod 556, two spring rods 556 are symmetrically disposed between the upper end of the auxiliary block 554 and the inner top wall of the connecting slot in the width direction, and a top contact block 557 is mounted on the side, far away from the motor support seat 2, of the outer side wall of the rotating sleeve 52, and the top contact block 557 slides and abuts against the lower end of the auxiliary block 554.
In the specific implementation process, a motor to be detected is started, a motor rotating shaft drives the rotating sleeve 52 to rotate, and the rotating sleeve 52 drives the top contact block 557 to synchronously rotate; the auxiliary block 554 is at the lowest position in the initial state because the pushing spring rod 556 always applies downward pushing force to the auxiliary block 554; when the rotating sleeve 52 drives the top contact block 557 to rotate to the upper side thereof, the top contact block 557 abuts against the lower end of the auxiliary block 554, so that the top contact block 557 applies an upward pressing force to the auxiliary block 554, and the auxiliary block 554 drives the push rod 555 to apply an abutting force to the touch switch 553, and the counter 551 counts once.
Then the rotary sleeve 52 continues to rotate and drives the top contact block 557 to be separated from the lower end of the auxiliary block 554, the auxiliary block 554 loses the extrusion force of the top contact block 557 and drives the ejector rod 555 to move downwards for resetting under the action of the top extension spring rod 556; at this time, the touch switch 553 is reset, and the counter 551 does not count when the touch switch 553 is in a state of not receiving an interference force; therefore, when the motor rotating shaft drives the rotating sleeve 52 to rotate for one circle, the counter 551 counts up and counts once, so that the accuracy of counting the number of turns of the motor rotating shaft is ensured, deviation can not occur, and further the detection accuracy of the motor rotating speed is ensured.
Then the motor rotating shaft drives the rotating sleeve 52 to continue to rotate, and the steps are repeated, so that the number of turns of the motor rotating shaft can be counted in an accumulated manner; and finally, calculating the rotating speed of the motor according to the number of turns of the motor rotating shaft rotating in a certain time.
Embodiment two:
referring to fig. 7, 8, 9 and 10, on the basis of the first embodiment, since the outer wall of the motor shaft is a smooth circumferential surface, when the rotating sleeve 52 is sleeved on the outer wall of the motor shaft, the friction force between the rotating sleeve 52 and the outer wall of the motor shaft is small, and relative rotation is easy to occur, so that the number of rotation turns of the rotating sleeve 52 and the motor shaft are inconsistent, and further the motor rotation speed cannot be accurately detected; in order to solve the above problems, the present invention provides a clamping assembly 53 for fixing between a motor rotating shaft and a rotating sleeve 52, specifically, the clamping assembly 53 further includes a rotating rod 532, one side of the rotating sleeve 52 close to the motor supporting seat 2 is uniformly rotated and connected with a plurality of annularly distributed rotating rods 532, the plurality of rotating rods 532 are connected by a belt, and by the arrangement of the belt, rotating any one rotating rod 532 can drive other rotating rods 532 to synchronously rotate, so as to improve the efficiency of adjusting the angle of a cam 534; a plurality of circular grooves 533 which are distributed in a ring shape are uniformly formed in the rotary sleeve 52, the circular grooves 533 are distributed at equal intervals along the axial direction of the rotary sleeve 52, and a plurality of cams 534 which are rotationally connected in the circular grooves 533 are sleeved on the outer wall of the rotary rod 532.
Further, in the present embodiment, a receiving groove is formed on one side of the circular groove 533 near the axis of the rotating sleeve 52, the clamping block 531 is slidably connected in the receiving groove, and two contraction springs 535 are symmetrically arranged between the clamping block 531 and the inner wall of the receiving groove along the width direction thereof.
In the specific implementation, after the rotating sleeve 52 is sleeved outside the motor shaft, the rotating rod 532 is rotated, the rotating rod 532 drives the cam 534 to rotate, and the protruding portion of the cam 534 abuts against the clamping block 531 and applies a pushing force (shown in fig. 9) to the side close to the axis of the rotating sleeve 52, so that the clamping block 531 protrudes out of the accommodating groove and abuts against the outer wall of the motor shaft; therefore, the motor rotating shaft can be clamped and fixed in multiple directions through the interference between the clamping blocks 531 and the motor rotating shaft, so that the motor rotating shaft and the rotating sleeve 52 are ensured to be in a fixed state, and the rotating sleeve 52 can be driven to synchronously rotate when the motor rotating shaft rotates; therefore, when the motor rotating shaft starts or stops rotating, the rotating sleeve 52 cannot rotate relative to the motor rotating shaft, and the rotating number of turns of the rotating sleeve 52 is guaranteed to be consistent with that of the motor rotating shaft.
It should be noted that, the rotation angle of the cam 534 is adjusted by the rotating rod 532, so that the distance that the clamping block 531 extends out of the accommodating groove can be controlled, and thus the clamping block 531 is controlled to clamp and fix the motor rotating shafts with different diameters, and further, the rotating speed detection of motors with different types is facilitated; when the diameter of the motor shaft is larger, the corresponding decrease of the rotation angle of the cam 534 can enable the clamping block 531 to be abutted against the outer wall of the motor shaft; conversely, when the diameter of the motor shaft is smaller, the rotation angle of the cam 534 needs to be correspondingly increased, so that the distance that the clamping block 531 extends out of the accommodating groove is increased, and then abuts against the outer wall of the motor shaft.
In addition, in this embodiment, an arc concave surface is formed on a side of the clamping block 531 near the rotating sleeve 52, and a plurality of arc-shaped anti-slip strips 536 are disposed on a side of the clamping block 531 near the rotating sleeve 52 at equal intervals along the axial direction thereof; the contact area between the clamping block 531 and the motor rotating shaft is increased through the arc concave surface, the friction force between the clamping block 531 and the motor rotating shaft can be increased, and the friction force between the clamping block 531 and the motor rotating shaft can be further increased through the arc anti-slip strip 536, so that the relative rotation between the rotary sleeve 52 and the motor rotating shaft is effectively prevented.
After the motor rotation speed detection is completed, the rotating rod 532 is reversely rotated, and the rotating rod 532 drives the cam 534 to reversely rotate, so that the base circle part of the cam 534 is abutted against the clamping block 531; since the contraction spring 535 always applies a contraction force to the grip block 531 directed to a side away from the axis of the rotating sleeve 52, when the base circle portion of the cam 534 collides with the grip block 531, the grip block 531 is contracted in the accommodation groove (shown in fig. 10) by the contraction spring 535, thereby releasing the grip effect of the grip block 531 on the motor shaft, facilitating the removal of the rotating sleeve 52 from the outside of the motor shaft.
With continued reference to fig. 8, since the clamping block 531 is easily retracted into the accommodating groove under the extrusion action of the motor shaft, the cam 534 needs to be correspondingly limited and fixed after the adjustment is completed, so that the problem is avoided; based on this, the present invention provides the positioning assembly 54, specifically, the positioning assembly 54 includes a linkage wheel 541, an end portion of the rotating rod 532 near the motor support seat 2 is provided with the linkage wheel 541, a side of the rotating sleeve 52 near the motor support seat 2 is provided with a plurality of fixing plates 542 equal to the rotating rod 532 in number, the fixing plates 542 are located at a side of the rotating rod 532 far from the axis of the rotating sleeve 52, and a side of the fixing plates 542 near the axis of the rotating sleeve 52 is provided with a limiting block 544 by pushing the spring rod 543.
Further, in this embodiment, a plurality of annularly distributed protrusions 545 are uniformly disposed on the outer wall of the linkage wheel 541, the outer wall of the protrusions 545 is an arc convex surface, and an arc groove matched with the limiting block 544 is disposed between two adjacent protrusions 545.
In a specific implementation process, the pushing spring rod 543 always applies a pushing force to the limiting block 544 pointing to one side of the linkage wheel 541, so that the limiting block 544 always abuts against the outer wall of the linkage wheel 541; when the rotating rod 532 is rotated, the rotating rod 532 drives the linkage wheel 541 to rotate synchronously, so that the limiting block 544 is in sliding contact with the protrusion 545 and the arc-shaped groove in sequence.
After the rotating rod 532 drives the cam 534 to rotate to a certain angle, the limiting block 544 is abutted against the arc-shaped groove, so that the linkage wheel 541 can be limited and fixed through the cooperation between the limiting block 544 and the arc-shaped groove, and the rotating rod 532 is further limited and fixed, so that the phenomenon that the cam 534 reduces the interference force of the clamping block 531 due to random rotation of the rotating rod 532 is avoided, and the clamping block 531 can always apply the clamping force to the motor rotating shaft.
It should be noted that, the limiting block 544 only applies a limiting effect to the linkage wheel 541, but does not apply a fixing effect to the linkage wheel 541, and when the rotation rod 532 continues to rotate, the linkage wheel 541 can still rotate along with the rotation rod 532; so that the stopper 544 can form an adaptive stopper for the linkage wheel 541.
In addition, the invention also provides a motor rotating speed tracking starting speed detection method, which comprises the following steps:
s1: and (3) motor installation: firstly, a motor to be detected is placed at the upper end of a motor supporting seat 2, and a motor base hole is sleeved on a positioning column, so that the motor is limited and fixed.
S2: fixing a motor rotating shaft: after the motor is placed, the first screw rod 43 is rotated, the first screw rod 43 drives the displacement block 41 to move up and down along the longitudinal sliding groove 42, and the displacement block 41 drives the annular frame 51 and the rotary sleeve 52 to integrally and synchronously move; thereby adjusting the position of the rotary sleeve 52 according to the position of the motor rotating shaft so that the rotary sleeve 52 and the motor rotating shaft are positioned on the same axis; and then the second screw 46 is rotated, the second screw 46 rotates and drives the supporting block 45 to move along the guide chute 44, and the supporting block 45 drives the loop-shaped frame 3, the annular frame 51 and the rotating sleeve 52 to integrally move to one side close to the motor, so that the rotating sleeve 52 can be smoothly sleeved on the outer wall of the motor rotating shaft.
The cam 534 is driven to rotate by the rotating rod 532, the protruding part of the cam 534 is abutted against the clamping block 531 and applies a pushing force pointing to one side close to the axis of the rotating sleeve 52 to the protruding part, so that the clamping block 531 extends out of the accommodating groove and abuts against the outer wall of the motor rotating shaft, the motor rotating shaft can be clamped and fixed in multiple directions by abutting between the clamping blocks 531 and the motor rotating shaft, the motor rotating shaft and the rotating sleeve 52 are guaranteed to be in a fixed state, and the rotating sleeve 52 can be driven to rotate synchronously when the motor rotating shaft rotates.
After the rotating rod 532 drives the cam 534 to rotate to a certain angle, the limiting block 544 is abutted against the arc-shaped groove, so that the linkage wheel 541 can be limited and fixed through the cooperation between the limiting block 544 and the arc-shaped groove, and the rotating rod 532 is further limited and fixed, so that the phenomenon that the cam 534 reduces the interference force of the clamping block 531 due to random rotation of the rotating rod 532 is avoided, and the clamping block 531 can always apply the clamping force to the motor rotating shaft.
S3: detecting the rotation speed of a motor: starting a motor to be detected, wherein a motor rotating shaft drives a rotating sleeve 52 to rotate, and the rotating sleeve 52 drives a top contact block 557 to synchronously rotate; when the rotating sleeve 52 drives the top contact block 557 to rotate above the rotating sleeve, the top contact block 557 is abutted against the lower end of the auxiliary block 554, so that the top contact block 557 applies upward extrusion force to the auxiliary block 554, the auxiliary block 554 drives the ejector rod 555 to apply an abutting force to the touch switch 553, the counter 551 counts once at the moment, and the counter 551 counts once when the rotating sleeve 52 is driven to rotate by the motor rotating shaft; and then the motor rotating shaft drives the rotating sleeve 52 to continue to rotate, so that the number of turns of the motor rotating shaft can be counted in an accumulated manner.
S4: and (3) taking down the motor: after the motor rotation speed detection is completed, the rotating rod 532 is reversely rotated, the rotating rod 532 drives the cam 534 to reversely rotate, so that the base circle part of the cam 534 is in conflict with the clamping block 531, the clamping block 531 is contracted in the accommodating groove under the action of the contraction spring 535, the clamping effect on the motor rotation shaft is relieved, and the rotating sleeve 52 is conveniently taken down from the outside of the motor rotation shaft; then the second screw 46 is rotated in a reverse direction to drive the supporting block 45, the return frame 3, the annular frame 51 and the rotating sleeve 52 to integrally move to one side far away from the motor, so that the rotating sleeve 52 is separated from the outer wall of the motor rotating shaft; and then the motor is taken down from the motor support seat 2.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (9)
1. The utility model provides a motor rotation speed tracking starts speed detecting system, includes detection workstation (1), and motor supporting seat (2) and return frame (3), its characterized in that are installed in proper order along its length direction in detection workstation (1) upper end: motor supporting seat (2) upper end is located its four corners and all is provided with the reference column, returns type frame (3) sliding connection and is being provided with adjusting part (4) in detection workstation (1) upper end, returns type frame (3) inside and with detecting between workstation (1), returns type frame (3) and installs detecting part (5) through its inside adjusting part (4), adjusting part (4) including displacement piece (41) of two sliding connection at back type frame (3) inside wall, wherein: the detection component (5) comprises an annular frame (51) arranged between two displacement blocks (41), a rotary sleeve (52) is rotatably connected to the inner wall of the annular frame (51), a clamping assembly (53) used for fixing a motor rotating shaft is arranged in the rotary sleeve (52), the clamping assembly (53) comprises a plurality of clamping blocks (531) which are slidably connected to the inside of the rotary sleeve (52), a positioning assembly (54) is arranged between the rotary sleeve (52) and the clamping assembly (53), a counting assembly (55) is arranged between the rotary sleeve (52) and the annular frame (51), and the counting assembly (55) comprises a counter (551) arranged at one side end part of the annular frame (51) far away from the motor supporting seat (2).
2. The motor speed tracking start-up speed detection system of claim 1, wherein: the clamping assembly (53) further comprises rotating rods (532), one side, close to the motor supporting seat (2), of the rotating sleeve (52) is uniformly and rotatably connected with a plurality of annularly distributed rotating rods (532), the rotating rods (532) are connected through a belt, a plurality of annularly distributed circular grooves (533) are uniformly formed in the rotating sleeve (52), the circular grooves (533) are uniformly distributed along the axis direction of the rotating sleeve (52), and a plurality of cams (534) which are rotatably connected in the circular grooves (533) are sleeved on the outer wall of the rotating sleeve (532); the holding groove is formed in one side, close to the axis of the rotary sleeve (52), of the circular groove (533), the clamping block (531) is slidably connected in the holding groove, and two contraction springs (535) are symmetrically arranged between the clamping block (531) and the inner wall of the holding groove along the width direction of the clamping block.
3. A motor speed tracking start-up speed detection system according to claim 2, wherein: one side of the clamping block (531) close to the rotary sleeve (52) is an arc-shaped concave surface for increasing the contact area between the clamping block and the motor rotating shaft, and a plurality of arc-shaped anti-slip strips (536) are arranged on one side of the clamping block (531) close to the rotary sleeve (52) at equal intervals along the axial direction of the clamping block.
4. A motor speed tracking start-up speed detection system according to claim 2, wherein: the positioning assembly (54) comprises a linkage wheel (541), the end part of the rotating rod (532) close to one side of the motor support seat (2) is provided with the linkage wheel (541), one side of the rotating sleeve (52) close to the motor support seat (2) is provided with a plurality of fixed plates (542) which are equal to the rotating rod (532), the fixed plates (542) are positioned on one side of the rotating rod (532) far away from the axis of the rotating sleeve (52), and one side of the fixed plates (542) close to the axis of the rotating sleeve (52) is provided with a limiting block (544) through pushing a spring rod (543); the outer wall of the linkage wheel (541) is uniformly provided with a plurality of annularly distributed bulges (545), the outer wall of each bulge (545) is an arc convex surface, and arc grooves matched with the limiting blocks (544) are arranged between every two adjacent bulges (545).
5. The motor speed tracking start-up speed detection system of claim 1, wherein: the counting assembly (55) further comprises a supporting plate (552), the supporting plate (552) is installed at one side end part of the annular frame (51) far away from the motor supporting seat (2), the supporting plate (552) is located above the rotating sleeve (52), the counter (551) is installed at the upper end of the supporting plate (552) through the supporting frame, the lower end of the counter (551) is provided with a touch switch (553), a connecting groove is formed in the supporting plate (552), an auxiliary block (554) is connected inside the connecting groove in a sliding mode, an ejector rod (555) is installed at the upper end of the auxiliary block (554), and the upper end of the ejector rod (555) is contacted with the touch switch (553) after penetrating through the connecting groove.
6. The motor speed tracking start-up speed detection system of claim 5, wherein: the counting assembly (55) further comprises a jacking spring rod (556), two jacking spring rods (556) are symmetrically arranged between the upper end of the auxiliary block (554) and the inner top wall of the connecting groove in the width direction, the outer side wall of the rotating sleeve (52) is far away from one side of the motor supporting seat (2), and a jacking block (557) is installed, and the jacking block (557) slides and abuts against the lower end of the auxiliary block (554).
7. The motor speed tracking start-up speed detection system of claim 1, wherein: the adjusting part (4) further comprises a longitudinal sliding groove (42), the inner side wall of the mold returning frame (3) is symmetrically provided with two longitudinal sliding grooves (42) along the width direction of the detection workbench (1), the displacement block (41) is slidably connected in the longitudinal sliding groove (42), the longitudinal sliding groove (42) is rotationally connected with a first screw (43) penetrating through the displacement block (41) in a threaded fit mode, and the two first screws (43) are connected through belt transmission.
8. The motor speed tracking start-up speed detection system of claim 1, wherein: the adjusting part (4) further comprises a guide chute (44), the upper end of the detection workbench (1) is provided with the guide chute (44) at the lower end of the return frame (3), a supporting block (45) connected with the lower end of the return frame (3) is connected in a sliding manner in the guide chute (44), and a second screw (46) penetrating through the supporting block (45) in a threaded fit manner is connected in the guide chute (44) in a rotating manner.
9. A motor speed tracking start-up speed detection method comprising a motor speed tracking start-up speed detection system according to any one of claims 1-8, characterized in that the detection method comprises the steps of: s1: and (3) motor installation: placing a motor to be detected at the upper end of a motor supporting seat (2), and sleeving a motor base hole on a positioning column so as to limit and fix the motor; s2: fixing a motor rotating shaft: the detection part (5) is driven to move to the motor rotating shaft through the adjusting part (4), and the detection part (5) is fixed on the outer wall of the motor rotating shaft; s3: detecting the rotation speed of a motor: starting the motor, and detecting the rotating speed of a rotating shaft of the motor through a detecting component (5); s4: and (3) taking down the motor: and (5) releasing the fixation between the detection part (5) and the motor rotating shaft, and then taking down the motor.
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| CN202310719400.7A CN116449046B (en) | 2023-06-16 | 2023-06-16 | Motor rotation speed tracking starting speed detection system and method |
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| CN202310719400.7A CN116449046B (en) | 2023-06-16 | 2023-06-16 | Motor rotation speed tracking starting speed detection system and method |
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| CN116449046B (en) | 2023-08-25 |
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