Motor speed measurement feedback device

Abstract

The invention discloses a motor speed measurement feedback device, and belongs to the technical field of motor speed measurement, and the motor speed measurement feedback device comprises a base, a speed measurement mechanism and an assembling mechanism which is installed at the top of the base and is used for adapting to the installation of various motors, and an assembling plate which is used for installing the speed measurement mechanism is vertically arranged at the top of the base. According to the motor speed measurement feedback device, the transverse sliding seat and the longitudinal sliding seat are arranged and can move longitudinally and transversely by rotating the two-way lead screw, and when the transverse sliding seat and the longitudinal sliding seat move, a positioning column can be driven to adjust the position, so that the positioning column can be adjusted according to the position of an assembly hole; and a rotating rod can also be rotated to drive a lead screw to rotate through a bevel gear set, when the lead screw rotates, an assembling plate can be driven to vertically move through a guide rod, when the assembling plate vertically moves, the position of a fixing cylinder can be adjusted according to the height of a driving shaft, and motors of different sizes can be conveniently assembled and fixed.

Description

Technical Field

[0001] This invention relates to the field of motor speed measurement technology, specifically to a motor speed measurement feedback device. Background Technology

[0002] An electric motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. It is divided into electric motors and generators. During motor operation, to improve the speed regulation effect and accuracy, speed measurement is usually required. Accurate speed feedback is the core element for achieving high-performance speed regulation, position servo control, and torque control. Therefore, a series of speed feedback devices integrated into the motor's structure have been developed.

[0003] Authorization announcement number CN117937855B discloses a motor speed feedback device. This invention relates to the field of motor technology. It includes a base, a workbench fixedly connected to the top of the base, an installation mechanism on the top of the workbench, a motor body on the top of the installation mechanism, a rotating shaft fixedly connected to the right side of the motor body, limit mechanisms on the front and rear sides of the bottom of the installation mechanism, and a speed measuring mechanism on the right side of the top of the workbench. This motor speed feedback device, through its installation mechanism, has a mounting plate fixed to the bottom of the motor body via a first and second support arm, facilitating worker fixation of the motor body and preventing positional shifts after each installation. Simultaneously, workers can simply pull the front and rear levers to retract the first positioning rods outwards into the fixed cylinder, disengaging them from the fixed sleeve and facilitating motor body installation and disassembly. However, this invention requires modifications to the bottom of the motor before speed measurement to accommodate the feedback device, significantly increasing measurement costs. Furthermore, the motor needs to be manually shut down during measurement, greatly reducing accuracy. Additionally, the drive shaft initially rotates slowly, affecting measurement accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a motor speed feedback device. By moving the longitudinal sliding seat, the longitudinal distance of the mounting component can be adjusted according to the distance between adjacent mounting holes on different fixed plates. It can also drive the mounting plate to slide vertically by rotating the lead screw. When the mounting plate slides, it can drive the fixed cylinder to move to the same height as the drive shaft, which can adapt to the assembly of different motors.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a motor speed feedback device, comprising: a base, a speed measuring mechanism, and an assembly mechanism for adapting to the installation of various motors mounted on the top of the base; an assembly plate for mounting the speed measuring mechanism is vertically arranged on the top of the base; the speed measuring mechanism is capable of detecting the rotational speed of the motor; the motor includes a fixing plate, mounting holes, and a drive shaft; two fixing plates for placement are symmetrically fixedly mounted on the outer surface of the bottom of the motor; each fixing plate has two mounting holes symmetrically opened at its center; a drive shaft is fixedly mounted on the output end of the motor; and a protrusion is provided on the drive shaft. The assembly mechanism includes adapter components and mounting components; The adapter component includes a transverse sliding seat, a longitudinal sliding seat, and a lead screw. The two transverse sliding seats can move laterally in opposite directions to adjust the position of the mounting component laterally according to the distance between the two mounting holes on the fixed plate. The two longitudinal sliding seats can move longitudinally in opposite directions to adjust the position of the mounting component longitudinally according to the distance between the mounting holes on the two fixed plates. The position adjustment of the mounting component can adapt to the position of different motor mounting holes. Rotating the lead screw can push the mounting plate to drive the mounting component to move vertically. The vertical movement of the mounting component can adapt to the height of different motor drive shafts. The mounting assembly includes a movable mounting base, a positioning column, and a fixing cylinder. The center of the mounting hole moves downward along the axis of the positioning column and fits onto the surface of the positioning column, and is placed on the movable mounting base. The horizontal movement of the movable mounting base can drive the motor to move horizontally. The horizontal movement of the motor can drive the drive shaft to be inserted into the interior of the fixing cylinder for fixation. The operation of the motor can drive the speed measuring mechanism to measure speed through the fixing cylinder.

[0006] Preferably, the adapter component further includes a mounting frame and a bidirectional lead screw. The mounting frame is fixedly mounted on the top of the base by bolts. The mounting frame is used to guide the longitudinal sliding seat and the transverse sliding seat to slide. The longitudinal sliding seat and the transverse sliding seat are symmetrically and movably mounted on the upper and lower parts of the inner side of the mounting frame, respectively. The interior of the two longitudinal sliding seats and the transverse sliding seats at their center is connected by a double-acting screw thread. One end of the double-acting screw is rotatably mounted on one side of the inner wall of the mounting frame, and the other end of the double-acting screw passes through the other side of the inner wall of the mounting frame and is rotatably connected. Rotating the two double-acting screws can drive the two longitudinal sliding seats and the transverse sliding seats to move horizontally along the surface of the double-acting screws.

[0007] Preferably, the adapter component further includes a triangular marker block and a scale. A triangular marker block is fixedly installed at one end of both the longitudinal sliding seat and the transverse sliding seat. The horizontal movement of the longitudinal sliding seat and the transverse sliding seat can drive the triangular marker block at the end to move. The center of the triangular marker and the axis of the positioning post are on the same vertical plane. A scale is fixedly installed on the mounting frame near the upper edge of the triangular marker block. The scale can measure the distance between the two triangular marker blocks, thereby determining the distance between the positioning posts.

[0008] Preferably, the adapter component further includes a lower slider, an upper slider, a sliding column, and a cross slide groove. Two cross slide grooves are symmetrically opened through the top center of the two longitudinal sliding seats and the transverse sliding seat. The upper slider is movably installed on the horizontal part of the cross slide groove near the longitudinal sliding seat. The lower slider is movably installed on the horizontal part of the cross slide groove near the transverse sliding seat. A sliding column is fixedly installed through the lower slider and the upper slider near the center of the vertical part of the cross slide groove. The longitudinal sliding seat can move horizontally in the longitudinal direction by driving the lower sliding block to move horizontally in the cross groove through the upper sliding block and the sliding column. The transverse sliding seat can move horizontally in the transverse direction by driving the upper sliding block to move horizontally in the cross groove through the lower sliding block and the sliding column.

[0009] Preferably, the adapter assembly further includes a bevel gear set, a rotating rod, and a guide rod. Two guide rods are symmetrically fixedly installed on the top of the base. The guide rods can guide the lifting and lowering of the assembly plate thread through their own smooth surfaces. The outer surface of the guide rods is movably connected to the inside of the guide hole opened at the bottom of the assembly plate. A rotating rod is rotatably connected through the right side of the base. One end of the rotating rod is connected to the bottom end of the lead screw through a bevel gear set. The top end of the lead screw passes through the bottom of the mounting plate and is threadedly connected to a threaded groove on the bottom of the mounting plate. Rotating the rotating rod can drive the lead screw to rotate on the base through the cooperation of the bevel gear set.

[0010] Preferably, the mounting assembly further includes a fixed base, a limiting block, and a first elastic element. The fixed base is fixedly installed on the top of the sliding column. The fixed base has an assembly groove inside for the horizontal movement of the movable assembly base. A positioning column is fixedly installed at the top center of the movable assembly base. Limiting blocks are fixedly installed on both sides of the movable assembly base near the assembly groove of the fixed base. The limiting blocks are connected to one end of the assembly groove of the fixed base through the first elastic element. The horizontal movement of the movable assembly base within the assembly groove of the fixed base can stretch the first elastic element through the limiting block. The first elastic element can pull the movable assembly base back horizontally for reset through its own elastic force.

[0011] Preferably, the mounting assembly further includes a positioning part and a fixing part. The positioning part includes an internal threaded sleeve and a positioning plate. The external surface of the positioning post is threadedly connected to the internal threaded sleeve. The external surface of the internal threaded sleeve is fixedly mounted with the positioning plate. Rotating the internal threaded sleeve can adjust the position of the positioning plate by sliding it up and down along the axis of the positioning post according to the thickness of the fixing plate. The bottom of the positioning plate can press down on the upper surface of the fixing plate for positioning. The threaded sleeve and the positioning plate can pass through the interior of the assembly hole. The fixing part includes a fixing seat, a pull rod, a positioning block, a second elastic element, and a magnetic block. The fixing seat is fixedly installed on the surface of the fixing cylinder. An assembly groove is provided between the fixing cylinder and the fixing seat. A pull rod is connected through the top of the assembly groove. Pulling the pull rod to move it vertically can drive the positioning block at the bottom to slide vertically in the assembly groove. The positioning block has an inclined surface facing outward from the fixed cylinder. The drive shaft can move horizontally inside the fixed cylinder and push the positioning block vertically by squeezing the inclined surface. The positioning block has a vertical surface facing inward from the fixed cylinder, and the vertical surface of the positioning block can position the protrusion of the drive shaft. A second elastic element is connected between the positioning block and the assembly groove to reset the pull rod and the positioning block. A magnetic block is fixedly sleeved on the outer surface of the pull rod near the top of the fixed base, and the magnetic block is magnetically connected to the fixed base.

[0012] Preferably, the speed measuring mechanism includes a reduction gear set and a speed measuring component, the reduction gear set is mounted on the mounting plate, and the speed measuring component is provided on the side of the gear set; The reduction gear set includes a first rotating shaft, a first gear, a second rotating shaft, a reduction gear, and a second gear. One end of the first rotating shaft is fixedly installed on one end of the fixed cylinder by bolts, and the other end of the first rotating shaft passes through the surface of the assembly plate and is fixedly installed with the first gear. The first gear is connected to a reduction gear on its side. The center of the reduction gear is sleeved on the outer surface of the second shaft. One end of the second shaft is rotatably mounted on one side of the mounting plate, and the other end of the second shaft is fixedly mounted with a second gear.

[0013] Preferably, the speed measuring component includes a rack, a mounting bracket, a limiting plate, a touch plate, a limiting rod, a third elastic element, a first trigger sensor, and a second trigger sensor. The rack is connected to the side of the second gear. Rotating the second gear can drive the rack to move vertically in the mounting slot of the mounting bracket. One end of the mounting bracket is fixedly mounted on the surface of the mounting plate. When the rack moves vertically, it can drive the limiting plates fixed at both ends to move. The movement of the limiting plate at the top of the rack can cause the first trigger sensor fixed at the bottom to separate from the upper surface of the mounting frame for timing. At the same time, the vertical movement of the rack can drive the touch plate movably installed on its surface to move towards the lower surface of the mounting frame, so that the second trigger sensor fixedly installed on the upper surface of the touch plate touches and fits against the lower surface of the mounting frame to end the timing. A limiting rod is fixedly installed at the center of the lower side of the touch plate. The bottom end of the limiting rod passes through the surface of the limiting plate at the bottom of the rack. A third elastic element is sleeved on the outer surface of the limiting rod. The two ends of the third elastic element are respectively fixedly installed on the lower surface of the touch plate and the upper surface of the limiting plate.

[0014] Preferably, the speed measuring component further includes an annular groove, an arc-shaped slider, and a buffer. The annular groove is formed on the inner wall of the reduction gear. An arc-shaped slider is fixedly installed on the outer surface of the second rotating shaft near the annular groove. A buffer is fixedly installed on the side of the arc-shaped slider near the annular groove.

[0015] Compared with the prior art, the beneficial effect of the present invention is: the motor speed measurement feedback device.

[0016] 1. Equipped with a transverse sliding seat and a longitudinal sliding seat, it can move longitudinally and laterally by rotating a two-way lead screw. When the transverse sliding seat and the longitudinal sliding seat move, they can drive the positioning column to adjust its position, so that the positioning column can be adjusted according to the position of the assembly hole. It can also rotate a rotating rod to drive the lead screw to rotate through a bevel gear set. When the lead screw rotates, it can drive the assembly plate to move vertically through a guide rod. When the assembly plate moves vertically, the position of the fixed cylinder can be adjusted according to the height of the drive shaft, which facilitates the assembly and fixing of motors of different sizes. 2. Mount the fixing plate at the bottom of the motor onto the positioning column, and push the motor so that the movable mounting seat can slide inside the mounting slot of the fixing seat through the fixing plate and the positioning column. When the motor slides, it can drive the drive shaft to insert into the fixed cylinder, and the positioning block will align the drive shaft. When the motor speed measurement is completed, pull the pull rod to separate the positioning block from the drive shaft. The motor can be reset through the cooperation of the first elastic element, which facilitates quick disassembly of the motor and improves the speed measurement efficiency. 3. When the motor is working, it drives the reduction gear set through the drive shaft. When the reduction gear set is working, it drives the rack to move vertically through the tooth grooves. When the rack moves vertically through the tooth grooves, it drives the top limit plate to move. When the limit plate moves, it causes the first trigger sensor at the bottom to separate from the surface of the mounting bracket. At this time, the first trigger sensor will start the timer to start timing. At the same time, the rack moves and it drives the side touch plate to move upward. When the touch plate moves upward, it drives the second trigger sensor on the upper surface to move. When the second trigger sensor moves to contact the lower surface of the mounting bracket, it will stop the timer and the motor will stop working. At this time, the motor speed can be calculated based on the timer's timing and the distance between the touch plate and the lower surface of the mounting bracket. There is no need to manually start and stop the equipment, which improves the speed measurement efficiency and accuracy. 4. When the first gear rotates, the reduction gear can idle for a certain period of time through the cooperation of the annular slide groove and the arc-shaped slider to skip the initial acceleration process. When the first gear reaches a high speed, the reduction gear will drive the second shaft and the second gear to rotate. When the second gear rotates, it will drive the speed measuring component to work, which will help improve the speed measuring accuracy of the speed measuring component. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention; Figure 2 This is a side view of the structure of the present invention; Figure 3 This is a three-dimensional structural schematic diagram from the perspective of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure from the perspective of the present invention; Figure 5 This is a schematic diagram of the three-dimensional cross-sectional structure from the perspective of the present invention; Figure 6 This is a top view cross-sectional structural diagram of the present invention; Figure 7 This is a partial three-dimensional exploded view of the installation component of the present invention; Figure 8 This is a front view schematic diagram of the speed measuring component of the present invention; Figure 9 This is a three-dimensional structural diagram of the speed measuring component of the present invention; Figure 10 This is a schematic diagram of the three-dimensional structure of the motor of the present invention; Figure 11 This is the present invention. Figure 3 Enlarged structural diagram of section A; Figure 12 This is the present invention. Figure 5 Enlarged structural diagram of section B.

[0018] In the picture: 100, base; 200. Assembly plate; 300. Assembly mechanism; 310. Adaptor component; 311. Lateral sliding seat; 312. Longitudinal sliding seat; 313. Lead screw; 314. Mounting frame; 315. Bidirectional lead screw; 316. Triangular marker block; 317. Scale; 318. Lower slider; 319. Upper slider; 3110. Sliding column; 3111. Cross groove; 3112. Bevel gear set; 3113. Rotating rod; 3114. Guide rod; 320. Mounting component; 321. Movable assembly base; 322. Positioning post; 323. Fixing cylinder; 324. Fixing base; 325. Limiting block; 326. First elastic element; 327. Positioning part; 3271. Internal threaded sleeve; 3272. Positioning plate; 328. Fixing part; 3281. Mounting base; 3282. Pull rod; 3283. Positioning block; 3284. Second elastic element; 3285. Magnetic block; 400. Speed ​​measuring mechanism; 410. Reduction gear set; 411. First rotating shaft; 412. First gear; 413. Second rotating shaft; 414. Reduction gear; 415. Second gear; 420. Speed ​​measuring component; 421. Rack; 422. Mounting bracket; 423. Limiting plate; 424. Touch plate; 425. Limiting rod; 426. Third elastic element; 427. First trigger sensor; 428. Second trigger sensor; 429. Annular groove; 4210. Arc-shaped slider; 4211. Buffer element; 500. Electric motor; 510, Fixing plate; 520, Assembly hole; 530, Drive shaft. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0020] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be used interchangeably where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or vehicle that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or vehicles.

[0021] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0022] Please see Figures 1-6 , Figure 10 This invention provides an embodiment of a motor speed feedback device, comprising: a base 100, a speed measuring mechanism 400, and an assembly mechanism 300 mounted on the top of the base 100 for adapting to the installation of various motors 500. An assembly plate 200 for mounting the speed measuring mechanism 400 is vertically arranged on the top of the base 100. The speed measuring mechanism 400 can detect the rotational speed of the motor 500. The motor 500 includes a fixing plate 510, mounting holes 520, and a drive shaft 530. Two fixing plates 510 are symmetrically fixedly mounted on the outer bottom surface of the motor 500 for placement. Each fixing plate 510 has two mounting holes 520 symmetrically opened at its center. The output end of the motor 500 is fixedly mounted with a drive shaft 530, which has protrusions. The assembly mechanism 300 includes an adapter component 310 and an installation component 320.

[0023] It should be noted that the adapter component 310 on the assembly mechanism 300 can adjust the installation position of the mounting component 320 according to the mounting hole 520 position and drive shaft 530 position of different motors 500. After the installation component 320 position is adjusted, the motor 500 can be installed. After the motor 500 is installed, speed measurement can be performed. When the motor 500 is working, the drive shaft 530 can drive the speed measuring mechanism 400 to work. When the speed measuring mechanism 400 is working, the rotational speed of the motor 500 can be detected.

[0024] like Figures 1-6 , Figure 10As shown, the adapter component 310 includes a transverse sliding seat 311, a longitudinal sliding seat 312, and a lead screw 313. The two transverse sliding seats 311 can move laterally in opposite directions to adjust the position of the mounting component 320 according to the distance between the two mounting holes 520 on the fixed plate 510. The two longitudinal sliding seats 312 can move longitudinally in opposite directions to adjust the position of the mounting component 320 according to the distance between the mounting holes 520 on the two fixed plates 510. The position adjustment of the mounting component 320 can adapt to the position of the mounting holes 520 of different motors 500. Rotating the lead screw 313 can drive the mounting component 320 to move vertically by pushing the mounting plate 200. The vertical movement of the mounting component 320 can adapt to the height of the drive shaft 530 of different motors 500.

[0025] It is conceivable that the distance between the two mounting holes 520 on the same fixed plate 510 and the distance between adjacent mounting holes 520 on the two fixed plates 510 are measured first. After the distance between the mounting holes 520 is measured, the transverse sliding seat 311 and the longitudinal sliding seat 312 can be moved by operating the components. When the transverse sliding seat 311 moves, the transverse distance of the mounting assembly 320 can be adjusted according to the distance between the two mounting holes 520 on the same fixed plate 510. When the longitudinal sliding seat 312 moves, the longitudinal distance of the mounting assembly 320 can be adjusted according to the distance between adjacent mounting holes 520 on different fixed plates 510. The mounting plate 200 can also be driven to slide vertically by rotating the lead screw 313. When the mounting plate 200 slides vertically, the fixed cylinder 323 can be moved to the same height as the drive shaft 530.

[0026] like Figure 1 , Figure 3 , Figures 5-7 and Figure 10 As shown, the mounting assembly 320 includes a movable mounting base 321, a positioning post 322, and a fixed cylinder 323. The center position of the mounting hole 520 moves downward along the axis of the positioning post 322 and is sleeved on the surface of the positioning post 322, and placed on the movable mounting base 321. The horizontal movement of the movable mounting base 321 can drive the motor 500 to move horizontally. The horizontal movement of the motor 500 can drive the drive shaft 530 to be inserted into the interior of the fixed cylinder 323 for fixation. The operation of the motor 500 can drive the speed measuring mechanism 400 to measure speed through the fixed cylinder 323.

[0027] It is worth noting that after the mounting component 320 is positioned, the mounting hole 520 on the fixing plate 510 can be fitted onto the outer surface of the positioning post 322. Then, the positioning post 322 is pressed against the inner wall of the mounting hole 520 by the movement of the longitudinal sliding seat 312. After the fixing plate 510 is fixed, the motor 500 can be pushed to drive the movable mounting seat 321 to move horizontally through the fixing plate 510 and the positioning post 322. When the motor 500 moves, the drive shaft 530 can be inserted into the inside of the fixing cylinder 323 for fixation.

[0028] like Figures 1-6 As shown, the adapter component 310 also includes a mounting frame 314 and a bidirectional lead screw 315. The mounting frame 314 is fixedly mounted on the top of the base 100 by bolts. The mounting frame 314 is used to guide the longitudinal sliding seat 312 and the transverse sliding seat 311 to slide. The longitudinal sliding seat 312 and the transverse sliding seat 311 are symmetrically and movably mounted on the upper and lower parts of the inner side of the mounting frame 314, respectively. The interior of the two longitudinal sliding seats 312 and the transverse sliding seat 311 are connected by a bidirectional lead screw 315 through a thread. One end of the bidirectional lead screw 315 is rotatably mounted on one side of the inner wall of the mounting frame 314, and the other end of the bidirectional lead screw 315 is rotatably connected through the other side of the inner wall of the mounting frame 314. Rotating the two bidirectional lead screws 315 can drive the two longitudinal sliding seats 312 and the transverse sliding seat 311 to move horizontally along the surface of the bidirectional lead screw, respectively. It is clear that rotating the two bidirectional lead screws 315 allows them to rotate inside the mounting frame 314. When the bidirectional lead screws 315 located on the longitudinal sliding seat 312 rotate, they can drive the two longitudinal sliding seats 312 to slide towards or away from each other inside the mounting frame 314. When the bidirectional lead screws 315 located on the transverse sliding seat 311 rotate, they can drive the two transverse sliding seats 311 to slide towards or away from each other inside the mounting frame 314.

[0029] like Figures 3-7 and Figure 10 As shown, the adapter component 310 also includes a triangular marker block 316 and a scale 317. A triangular marker block 316 is fixedly installed at one end of both the longitudinal sliding seat 312 and the transverse sliding seat 311. The horizontal movement of the longitudinal sliding seat 312 and the transverse sliding seat 311 can drive the triangular marker block 316 at the end to move. The center of the triangular marker and the axis of the positioning post 322 are on the same vertical plane. A scale 317 is fixedly installed on the mounting frame 314 near the upper edge of the triangular marker block 316. The scale 317 can measure the distance between the two triangular marker blocks 316, thereby determining the distance between the positioning posts 322. It should be understood that after the distance between the two mounting holes 520 on the same fixed plate 510 is measured, the components can be operated to move the two transverse sliding seats 311 toward or in opposite directions, which can drive the triangular marker blocks 316 at the ends to move toward or in opposite directions. When the triangular marker blocks 316 move to the designated position, the scale 317 on the top of the mounting frame 314 can be used as a reference to make the position of the positioning column 322 more accurate. After the distance between the adjacent mounting holes 520 on the two fixed plates 510 is measured, the components can be operated to move the longitudinal sliding seats 312 toward or in opposite directions, which can drive the triangular marker blocks 316 at the ends to move toward or in opposite directions. When the triangular marker blocks 316 move to the designated position, the scale 317 on the top of the mounting frame 314 can be used as a reference to make the position of the positioning column 322 more accurate.

[0030] like Figures 3-7 As shown, the adapter component 310 also includes a lower slider 318, an upper slider 319, a slide post 3110, and a cross slide groove 3111. Two cross slide grooves 3111 are symmetrically opened through the top center of the two longitudinal sliders 312 and the transverse slider 311. The upper slider 319 is movably installed in the cross slide groove 3111 near the horizontal part of the longitudinal slider 312. The lower slider 318 is movably installed in the cross slide groove 3111 near the horizontal part of the transverse slider 311. The slide post 3110 is fixedly installed through the center of the lower slider 318 and the upper slider 319 near the vertical part of the cross slide groove 3111. The longitudinal horizontal movement of the longitudinal slider 312 can drive the lower slider 318 to move longitudinally and horizontally in the cross slide groove 3111 through the upper slider 319 and the slide post 3110. The transverse horizontal movement of the transverse slider 311 can drive the upper slider 319 to move horizontally in the cross slide groove 3111 through the lower slider 318 and the slide post 3110. It should be noted that when the longitudinal sliding seat 312 moves longitudinally, it can push the sliding column 3110 and the upper slider 319 to move through the cross slide groove 3111. When the sliding column 3110 and the upper slider 319 move, they can drive the sliding column 3110 and the lower slider 318 located in the transverse sliding seat 311 to slide inside the cross slide groove 3111. When the transverse sliding seat 311 moves laterally, it can push the sliding column 3110 and the lower slider 318 to move through the cross slide groove 3111. When the sliding column 3110 and the lower slider 318 move, they can drive the sliding column 3110 and the upper slider 319 located in the longitudinal sliding seat 312 to slide inside the cross slide groove 3111. When the sliding column 3110 moves longitudinally and laterally, it can adjust the longitudinal and transverse positions of the positioning column 322.

[0031] like Figures 1-6 and Figure 10As shown, the adapter component 310 also includes a bevel gear set 3112, a rotating rod 3113, and a guide rod 3114. Two guide rods 3114 are symmetrically fixedly installed on the top of the base 100. The guide rods 3114 can guide the lifting and lowering of the assembly plate 200 by their smooth surfaces. The outer surface of the guide rods 3114 is movably connected to the guide hole opened at the bottom of the assembly plate 200. The rotating rod 3113 is rotatably connected through the right side of the base 100. One end of the rotating rod 3113 is connected to the bottom end of the lead screw 313 through the bevel gear set 3112. The top end of the lead screw 313 passes through the bottom of the assembly plate 200 and is threadedly connected to the threaded groove opened at the bottom of the assembly plate 200. Rotating the rotating rod 3113 can drive the lead screw 313 to rotate on the base 100 through the cooperation of the bevel gear set 3112. It is conceivable that rotating the rotating rod 3113 can rotate on the side of the base 100. When the rotating rod 3113 rotates, it can drive the bevel gear set 3112 to work. When the bevel gear set 3112 works, it can drive the lead screw 313 to rotate on the top of the base 100. When the lead screw 313 rotates, it can drive the assembly plate 200 to slide threadedly through the threaded groove. When the assembly plate 200 slides threadedly, it can drive the guide rod 3114 to slide vertically. When the assembly plate 200 moves vertically, the position of the fixed cylinder 323 can be adjusted according to the height of the drive shaft 530.

[0032] like Figure 3 , Figures 5-7 , Figure 10 and Figure 11 As shown, the mounting assembly 320 also includes a fixed base 324, a limiting block 325, and a first elastic element 326. The fixed base 324 is fixedly installed on the top of the sliding column 3110. The fixed base 324 has an assembly groove inside for the horizontal movement of the movable assembly base 321. A positioning column 322 is fixedly installed at the top center of the movable assembly base 321. Limiting blocks 325 are fixedly installed on both sides of the movable assembly base 321 near the assembly groove of the fixed base 324. The limiting block 325 is connected to one end of the assembly groove of the fixed base 324 through the first elastic element 326. When the movable assembly base 321 moves horizontally in the assembly groove of the fixed base 324, the first elastic element 326 can be stretched by the limiting block 325. The first elastic element 326 can pull the movable assembly base 321 back horizontally for reset by its own elastic force. It is worth noting that the drive motor 500 can drive the movable assembly seat 321 to slide inside the assembly groove of the fixed seat 324 through the fixed plate 510 and the positioning column 322. At the same time, it will drive the limiting blocks 325 on both sides of the movable assembly seat 321 to slide in the assembly groove. When the limiting blocks 325 slide, they can stretch the first elastic element 326. When the drive shaft 530 separates from the fixed cylinder 323, the movable assembly seat 321 and the limiting blocks 325 can reset the motor 500 through the elastic force of the first elastic element 326 itself.

[0033] like Figure 3 , Figures 5-7 and Figure 10 As shown, the mounting assembly 320 also includes a positioning part 327 and a fixing part 328. The positioning part 327 includes an internal threaded sleeve 3271 and a positioning plate 3272. The external surface of the positioning post 322 is threadedly connected to the internal threaded sleeve 3271. The positioning plate 3272 is fixedly installed on the external surface of the internal threaded sleeve 3271. By rotating the internal threaded sleeve 3271, the position of the positioning plate 3272 can be adjusted by sliding the internal thread along the axis of the positioning post 322 according to the thickness of the fixing plate 510. The bottom of the positioning plate 3272 can press down and position the upper surface of the fixing plate 510. The threaded sleeve and the positioning plate 3272 can pass through the interior of the mounting hole 520. It is clear that when the assembly hole 520 is fitted onto the side of the positioning post 322, the internal threaded sleeve 3271 and the positioning plate 3272 will pass through the interior of the assembly hole 520 at the same time. When the positioning post 322 is pressed against the inner wall of the assembly hole 520, the positioning plate 3272 can be rotated. When the positioning plate 3272 rotates, it can drive the internal threaded sleeve 3271 to slide on the surface of the positioning post 322. When the bottom thread of the positioning plate 3272 slides to the upper surface of the fixing plate 510, it can be squeezed and fixed.

[0034] like Figure 3 , Figure 10 and Figure 11As shown, the fixing part 328 includes a mounting base 3281, a pull rod 3282, a positioning block 3283, a second elastic element 3284, and a magnetic block 3285. The mounting base 3281 is fixedly mounted on the surface of the fixing cylinder 323. An assembly groove is provided between the fixing cylinder 323 and the mounting base 3281. The pull rod 3282 is connected through the top of the assembly groove. Pulling the pull rod 3282 vertically can drive the positioning block 3283 at the bottom to slide vertically in the assembly groove. The positioning block 3283 has an inclined surface on the outside of the fixing cylinder 323. The drive shaft 530 is located on the fixing cylinder. The internal horizontal movement of 323 can be pushed vertically by squeezing the inclined surface of the positioning block 3283. The positioning block 3283 is vertical to the inside of the fixed cylinder 323. The vertical surface of the positioning block 3283 can position the protrusion of the drive shaft 530. A second elastic element 3284 is connected between the positioning block 3283 and the assembly groove to reset the pull rod 3282 and the positioning block 3283. A magnetic block 3285 is fixedly sleeved on the outer surface of the pull rod 3282 near the top of the mounting base 3281. The magnetic block 3285 is magnetically connected to the mounting base 3281. It should be considered that when the end of the drive shaft 530 is inserted into the fixed cylinder 323, the surface protrusion will press against the inclined surface of the positioning block 3283. When the positioning block 3283 is pressed, it can slide vertically in the assembly groove. When the positioning block 3283 slides, it can press against the second elastic element 3284. While the positioning block 3283 slides, it can drive the pull rod 3282 and the magnetic block 3285 to slide vertically. When the drive shaft 530 is fully inserted into the fixed cylinder 323, the positioning block 3283 can be reset by the elastic force of the second elastic element 3284. When the positioning block 3283 is reset, the vertical surface will move to the side of the protrusion of the drive shaft 530 to block and position it. At the same time, the magnetic block 3285 will be magnetically attracted to the top of the fixed cylinder 323, thereby preventing the positioning block 3283 from separating from the protrusion of the drive shaft 530 when the drive shaft 530 rotates at high speed.

[0035] like Figures 1-6 , Figure 8 , Figure 10 and Figure 12As shown, the speed measuring mechanism 400 includes a reduction gear set 410 and a speed measuring component 420. The reduction gear set 410 is mounted on the mounting plate 200, and the speed measuring component 420 is provided on the side of the reduction gear set 410. The reduction gear set 410 includes a first rotating shaft 411, a first gear 412, a second rotating shaft 413, a reduction gear 414, and a second gear 415. One end of the first rotating shaft 411 is fixedly mounted on one end of the fixed cylinder 323 by bolts. The other end of the first rotating shaft 411 passes through the surface of the mounting plate 200 and is fixedly mounted on the first gear 412. The reduction gear 414 is connected to the side of the first gear 412. The center of the reduction gear 414 is sleeved on the outer surface of the second rotating shaft 413. One end of the second rotating shaft 413 is rotatably mounted on one side of the mounting plate 200, and the other end of the second rotating shaft 413 is fixedly mounted on the second gear 415. It should be noted that when the motor 500 is working, it can drive the fixed cylinder 323 to rotate through the drive shaft 530. When the fixed cylinder 323 rotates, it will drive the first rotating shaft 411 to rotate on the assembly plate 200. When the first rotating shaft 411 rotates, it will drive the first gear 412 to rotate. When the first gear 412 rotates, it will drive the reduction gear 414 to rotate. When the reduction gear 414 rotates, it will drive the second rotating shaft 413 to rotate on the assembly plate 200. When the second rotating shaft 413 rotates, it can drive the second gear 415 to rotate. When the second gear 415 rotates, it will drive the speed measuring component 420 to perform speed measuring.

[0036] like Figure 1 , Figure 2 and Figures 8-10As shown, the speed measuring component 420 includes a rack 421, a mounting bracket 422, a limiting plate 423, a touch plate 424, a limiting rod 425, a third elastic element 426, a first trigger sensor 427, and a second trigger sensor 428. The rack 421 is connected to the side of the second gear 415. Rotating the second gear 415 can drive the rack 421 to move vertically within the mounting slot of the mounting bracket 422. One end of the mounting bracket 422 is fixedly mounted on the surface of the mounting plate 200. When the rack 421 moves vertically, it can drive the limiting plates 423 fixedly mounted at both ends to move. The movement of the limiting plate 423 at the top of the rack 421 can drive the first trigger sensor 427 fixedly mounted at the bottom. Separating from the upper surface of the mounting bracket 422 allows the timer to start timing. Simultaneously, the vertical movement of the rack 421 can drive the touch plate 424, which is movably mounted on its surface, to move towards the lower surface of the mounting bracket 422. This causes the second trigger sensor 428, which is fixedly mounted on the upper surface of the touch plate 424, to touch and adhere to the lower surface of the mounting bracket 422, thus ending the timer's timing. A limit rod 425 is fixedly mounted at the center of the lower side of the touch plate 424. The bottom end of the limit rod 425 passes through the surface of the bottom limit plate 423 of the rack 421. A third elastic element 426 is sleeved on the outer surface of the limit rod 425. The two ends of the third elastic element 426 are respectively fixedly mounted on the lower surface of the touch plate 424 and the upper surface of the limit plate 423. It is conceivable that when the second gear 415 rotates, it will drive the rack 421 to move vertically through the tooth grooves. When the rack 421 moves vertically through the tooth grooves, it can drive the top limiting plate 423 to move. When the limiting plate 423 moves, it can drive the bottom first trigger sensor 427 to separate from the surface of the mounting bracket 422. At this time, the first trigger sensor 427 will start the timer to start timing. When the rack 421 moves, it will drive the side touch plate 424 to move upward. When the touch plate 424 moves upward, it will drive the second trigger sensor 428 on the upper surface to move. When the second trigger sensor 428 moves to contact the lower surface of the mounting bracket 422, it will turn off the timer to stop timing and turn off the motor 500 to stop working. At this time, the rotational speed of the motor 500 can be calculated based on the timer's timing and the distance between the initial position of the touch plate 424 and the lower surface of the mounting bracket 422. Since the motor 500 will rotate to a certain extent after it is turned off and then completely stops, the rack 421 will continue to mesh and move upward. When the rack 421 meshes and moves, it can drive the touch plate 424 to move upward. When the touch plate 424 moves upward, the lower surface of the mounting bracket 422 will push the touch plate 424 downward. When the touch plate 424 is pushed, it can slide downward along the outer surface of the rack 421. When the touch plate 424 slides downward, it can squeeze the third elastic element 426. At the same time, the touch plate 424 will push the limit rod 425. When the limit rod 425 is pushed, it can slide inside the mounting groove of the limit plate 423 at the bottom of the rack 421. This can prevent the continuous rotation of the drive shaft 530 after the motor 500 is turned off from affecting the accuracy of the speed measurement.

[0037] like Figure 1 , Figure 2 , Figure 5 , Figure 8 , Figure 10 and Figure 12 As shown, the speed measuring component 420 also includes an annular groove 429, an arc-shaped slider 4210, and a buffer 4211. The annular groove 429 is formed on the inner wall of the reduction gear 414. The arc-shaped slider 4210 is fixedly installed on the outer surface of the second rotating shaft 413 near the annular groove 429. The buffer 4211 is fixedly installed on the side of the arc-shaped slider 4210 near the annular groove 429. It is worth noting that when the motor 500 initially starts working, the drive shaft 530 will be in a relatively slow initial rotation, which will affect the speed measurement accuracy. When the first gear 412 rotates, it can drive the reduction gear 414 to rotate. When the reduction gear 414 rotates, it will rotate on the surface of the second shaft 413. When the reduction gear 414 rotates, it can drive the annular slide groove 429 to slide on the surface of the arc-shaped slider 4210. When the annular slide groove 429 slides, one end moves away from the arc-shaped slider 4210 and the other end moves closer to the buffer 4211. The buffer 4211 can prevent the annular slide groove 429 from making hard contact with the arc-shaped slider 4210. When in contact with the buffer 4211, one end of the annular groove 429 will push the arc-shaped slider 4210 to rotate through the buffer 4211. When the arc-shaped slider 4210 rotates, it can drive the second rotating shaft 413 to rotate. When the second rotating shaft 413 rotates, it can drive the second gear 415 to rotate. As the reduction gear 414 drives one end of the annular groove 429 away from the arc-shaped slider 4210 and the other end to approach the arc-shaped slider 4210, the drive shaft 530 will reach high-speed rotation from the initial rotation. During speed measurement, the initial acceleration process can be skipped through the cooperation between the annular groove 429 and the arc-shaped slider 4210, thereby improving the speed measurement accuracy of the speed measuring component 420.

[0038] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A motor speed feedback device, comprising: The base, the speed measuring mechanism, and the assembly mechanism on the top of the base for adapting to the installation of various motors are provided. The top of the base is vertically provided with an assembly plate for mounting the speed measuring mechanism. The speed measuring mechanism can detect the rotational speed of the motor. The motor includes a fixing plate, mounting holes, and a drive shaft. Two fixing plates for placement are symmetrically fixedly installed on the outer surface of the bottom of the motor. Each fixing plate has two mounting holes symmetrically opened at its center position. The output end of the motor is fixedly installed with a drive shaft, and the drive shaft is provided with a protrusion. The assembly mechanism includes adapter components and mounting components; The adapter component includes a transverse sliding seat, a longitudinal sliding seat, and a lead screw. The two transverse sliding seats can move laterally in opposite directions to adjust the position of the mounting component laterally according to the distance between the two mounting holes on the fixed plate. The two longitudinal sliding seats can move longitudinally in opposite directions to adjust the position of the mounting component longitudinally according to the distance between the mounting holes on the two fixed plates. The position adjustment of the mounting component can adapt to the position of different motor mounting holes. Rotating the lead screw can push the mounting plate to drive the mounting component to move vertically. The vertical movement of the mounting component can adapt to the height of different motor drive shafts. The mounting assembly includes a movable mounting base, a positioning column, and a fixing cylinder. The center of the mounting hole moves downward along the axis of the positioning column and fits onto the surface of the positioning column, and is placed on the movable mounting base. The horizontal movement of the movable mounting base can drive the motor to move horizontally. The horizontal movement of the motor can drive the drive shaft to be inserted into the interior of the fixing cylinder for fixation. The operation of the motor can drive the speed measuring mechanism to measure speed through the fixing cylinder.

2. The motor speed feedback device according to claim 1, characterized in that: The adapter component also includes a mounting frame and a bidirectional lead screw. The mounting frame is fixedly mounted on the top of the base by bolts. The mounting frame is used to guide the longitudinal sliding seat and the transverse sliding seat to slide. The longitudinal sliding seat and the transverse sliding seat are symmetrically and movably mounted on the upper and lower parts of the inner side of the mounting frame, respectively. The interior of the two longitudinal sliding seats and the transverse sliding seats at their center is connected by a double-acting screw thread. One end of the double-acting screw is rotatably mounted on one side of the inner wall of the mounting frame, and the other end of the double-acting screw passes through the other side of the inner wall of the mounting frame and is rotatably connected. Rotating the two double-acting screws can drive the two longitudinal sliding seats and the transverse sliding seats to move horizontally along the surface of the double-acting screws.

3. The motor speed feedback device according to claim 2, characterized in that: The adapter component also includes a triangular marker block and a scale. A triangular marker block is fixedly installed at one end of both the longitudinal sliding seat and the transverse sliding seat. The horizontal movement of the longitudinal sliding seat and the transverse sliding seat can drive the triangular marker block at the end to move. The center of the triangular marker and the axis of the positioning post are on the same vertical plane. A scale is fixedly installed on the mounting frame near the upper edge of the triangular marker block. The scale can measure the distance between the two triangular marker blocks, thereby determining the distance between the positioning posts.

4. The motor speed feedback device according to claim 1, characterized in that: The adapter component also includes a lower slider, an upper slider, a sliding column, and a cross slide groove. Two cross slide grooves are symmetrically opened through the top center of the two longitudinal sliding seats and the transverse sliding seat. The upper slider is movably installed on the horizontal part of the cross slide groove near the longitudinal sliding seat. The lower slider is movably installed on the horizontal part of the cross slide groove near the transverse sliding seat. A sliding column is fixedly installed through the center of the lower slider and the upper slider near the vertical part of the cross slide groove. The longitudinal sliding seat can move horizontally in the longitudinal direction by driving the lower sliding block to move horizontally in the cross groove through the upper sliding block and the sliding column. The transverse sliding seat can move horizontally in the transverse direction by driving the upper sliding block to move horizontally in the cross groove through the lower sliding block and the sliding column.

5. The motor speed feedback device according to claim 1, characterized in that: The adapter assembly also includes a bevel gear set, a rotating rod, and a guide rod. Two guide rods are symmetrically fixedly installed on the top of the base. The guide rods can guide the lifting and lowering of the assembly plate thread through their own smooth surfaces. The outer surface of the guide rods is movably connected to the inside of the guide hole opened at the bottom of the assembly plate. A rotating rod is rotatably connected through the right side of the base. One end of the rotating rod is connected to the bottom end of the lead screw through a bevel gear set. The top end of the lead screw passes through the bottom of the mounting plate and is threadedly connected to a threaded groove on the bottom of the mounting plate. Rotating the rotating rod can drive the lead screw to rotate on the base through the cooperation of the bevel gear set.

6. The motor speed feedback device according to claim 1, characterized in that: The mounting assembly further includes a fixed base, a limiting block, and a first elastic element. The fixed base is fixedly installed on the top of the sliding column. The fixed base has an assembly groove inside for the horizontal movement of the movable assembly base. A positioning column is fixedly installed at the top center of the movable assembly base. Limiting blocks are fixedly installed on both sides of the movable assembly base near the assembly groove of the fixed base. The limiting blocks are connected to one end of the assembly groove of the fixed base through the first elastic element. The horizontal movement of the movable assembly base within the assembly groove of the fixed base can stretch the first elastic element through the limiting block. The first elastic element can pull the movable assembly base back horizontally for reset through its own elastic force.

7. The motor speed feedback device according to claim 1, characterized in that: The mounting assembly also includes a positioning part and a fixing part. The positioning part includes an internal threaded sleeve and a positioning plate. The external surface of the positioning post is threaded with an internal threaded sleeve. The external surface of the internal threaded sleeve is fixedly mounted with a positioning plate. Rotating the internal threaded sleeve can adjust the position of the positioning plate by sliding it up and down along the axis of the positioning post according to the thickness of the fixing plate. The bottom of the positioning plate can press down on the upper surface of the fixing plate for positioning. The threaded sleeve and the positioning plate can pass through the interior of the assembly hole. The fixing part includes a fixing seat, a pull rod, a positioning block, a second elastic element, and a magnetic block. The fixing seat is fixedly installed on the surface of the fixing cylinder. An assembly groove is provided between the fixing cylinder and the fixing seat. A pull rod is connected through the top of the assembly groove. Pulling the pull rod to move it vertically can drive the positioning block at the bottom to slide vertically in the assembly groove. The positioning block has an inclined surface facing outward from the fixed cylinder. The drive shaft can move horizontally inside the fixed cylinder and push the positioning block vertically by squeezing the inclined surface. The positioning block has a vertical surface facing inward from the fixed cylinder, and the vertical surface of the positioning block can position the protrusion of the drive shaft. A second elastic element is connected between the positioning block and the assembly groove to reset the pull rod and the positioning block. A magnetic block is fixedly sleeved on the outer surface of the pull rod near the top of the fixed base, and the magnetic block is magnetically connected to the fixed base.

8. The motor speed feedback device according to claim 1, characterized in that: The speed measuring mechanism includes a reduction gear set and a speed measuring component. The reduction gear set is mounted on the mounting plate, and the speed measuring component is provided on the side of the gear set. The reduction gear set includes a first rotating shaft, a first gear, a second rotating shaft, a reduction gear, and a second gear. One end of the first rotating shaft is fixedly installed on one end of the fixed cylinder by bolts, and the other end of the first rotating shaft passes through the surface of the assembly plate and is fixedly installed with the first gear. The first gear is connected to a reduction gear on its side. The center of the reduction gear is sleeved on the outer surface of the second shaft. One end of the second shaft is rotatably mounted on one side of the mounting plate, and the other end of the second shaft is fixedly mounted with a second gear.

9. A motor speed feedback device according to claim 8, characterized in that: The speed measuring component includes a rack, a mounting bracket, a limiting plate, a touch plate, a limiting rod, a third elastic element, a first trigger sensor, and a second trigger sensor. The rack is connected to the side of the second gear. Rotating the second gear can drive the rack to move vertically in the mounting slot of the mounting bracket. One end of the mounting bracket is fixedly mounted on the surface of the mounting plate. When the rack moves vertically, it can drive the limiting plates fixed at both ends to move. The movement of the limiting plate at the top of the rack can cause the first trigger sensor fixed at the bottom to separate from the upper surface of the mounting frame for timing. At the same time, the vertical movement of the rack can drive the touch plate movably installed on its surface to move towards the lower surface of the mounting frame, so that the second trigger sensor fixedly installed on the upper surface of the touch plate touches and fits against the lower surface of the mounting frame to end the timing. A limiting rod is fixedly installed at the center of the lower side of the touch plate. The bottom end of the limiting rod passes through the surface of the limiting plate at the bottom of the rack. A third elastic element is sleeved on the outer surface of the limiting rod. The two ends of the third elastic element are respectively fixedly installed on the lower surface of the touch plate and the upper surface of the limiting plate.

10. A motor speed feedback device according to claim 8, characterized in that: The speed measuring component also includes an annular groove, an arc-shaped slider, and a buffer. The annular groove is formed on the inner wall of the reduction gear. An arc-shaped slider is fixedly installed on the outer surface of the second rotating shaft near the annular groove. A buffer is fixedly installed on the side of the arc-shaped slider near the annular groove.

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