Multi-source high-precision power measuring equipment
By designing components such as polygonal plates, sliders, fixed rods, spheres, and worm gears, the problem of manually changing connectors required in existing dynamometers has been solved, enabling automatic motor alignment and fixation, thus improving testing accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-24
- Publication Date
- 2026-03-06
AI Technical Summary
Existing dynamometers require manual replacement of connectors when testing different types of motors, which affects the testing accuracy.
A multi-source high-precision dynamometer device was designed, which uses components such as polygonal plates, sliders, fixed rods, spheres and worm gears to achieve automatic centering and fixing of the shafts of different types of motors. The connection is automatically adjusted by the cooperation of rotating fixing components and positioning components.
It enables automatic alignment and fixing of motors of different models, improves testing accuracy, reduces manual adjustment time, and increases testing efficiency.
Smart Images
Figure CN223977327U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of motor testing equipment, specifically a multi-source high-precision dynamometer. Background Technology
[0002] A dynamometer, also known as a power meter, is a device that measures the output torque or drive torque of machinery. Its main function is to test and evaluate the performance of various power machinery. It can measure parameters such as torque, power, and speed of equipment such as engines, electric motors, and fans under different operating conditions, thereby helping engineers understand the performance status of the equipment.
[0003] When existing dynamometers test the output torque or drive torque of different motor models, the connecting shafts of different motor models may need to be manually replaced when connected to the dynamometer. However, manual adjustment and replacement is slow and may affect the test accuracy. Therefore, we provide a multi-source high-precision dynamometer. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a multi-source high-precision dynamometer device, which has the advantages of using connecting shafts of different models and automatic alignment, thus solving the problems mentioned in the background technology.
[0005] This utility model provides the following technical solution: a multi-source high-precision dynamometer device, including a workbench, the top of which is respectively provided with a sliding groove and a straight groove, and the top of the workbench is provided with a positioning component, a rotation fixing component, and a dynamometer body;
[0006] The rotating fixing assembly includes a fixing plate, a turntable 1 rotatably connected to the inner wall of the fixing plate, a connecting cylinder fixedly sleeved on the inner wall of the turntable 1, a polygonal groove on the outer wall of the connecting cylinder, a motor 2 fixedly installed on the outer wall of the turntable 1, a gear 1 fixedly sleeved on the outer edge of the power output shaft of the motor 2, a turntable 2 rotatably connected to the outer wall of the connecting cylinder, a toothed groove and a straight groove 2 respectively opened on the outer wall of the turntable 2, a polygonal plate on the outer wall of the connecting cylinder, and a slider 2 and a fixing rod fixedly installed on the outer wall of the polygonal plate.
[0007] As a preferred technical solution of this utility model: the positioning component includes a motor, a worm gear is fixedly sleeved on the outer edge of the power output shaft of the motor, a worm is meshed on the outer edge of the worm gear, a slider is rotatably connected to the outer wall of the worm, a base plate and a round tube are fixedly mounted on the top of the slider, a cylinder is provided on the inner wall of the round tube, a connecting rod is fixedly mounted on the outer wall of the cylinder, a cylinder is fixedly installed on the inner wall of the cylinder, one end of a spring is fixedly connected to the inner wall of the cylinder, a ball is fixedly connected to the other end of the spring, a circular groove is opened on the outer wall of the connecting rod, a test motor is provided on the top of the base plate, and an arc groove is opened on the inner wall of the round tube.
[0008] As a preferred technical solution of this utility model: the number of arc-shaped grooves is several, and the inner wall of several arc-shaped grooves is adapted to the outer wall of the sphere. The sphere is located on the inner wall of the circular groove, and the diameter of the sphere is larger than that of the circular groove. The bottom shape of the slider and the circular tube is the same as the inner wall shape of the sliding groove and the straight groove, respectively. The bottom of the slider and the circular tube are slidably fitted to the inner wall of the sliding groove and the straight groove. The slider is set on one side of the workbench and is opposite to the main body of the dynamometer.
[0009] As a preferred technical solution of this utility model: the polygonal groove, motor 2, gear 1, turntable 2, tooth groove, straight groove 2, polygonal plate, slider 2 and fixed rod are regarded as a movable component, and the movable component is respectively arranged on both sides of the outer wall of turntable 1.
[0010] As a preferred technical solution of this utility model: the outer edge shape of the gear one is the same as the outer edge shape of the tooth groove, and the outer edge of the gear one is meshed and rotated with the outer edge of the tooth groove.
[0011] As a preferred technical solution of this utility model: the number of straight grooves and the number of fixing rods are six, and each straight groove and fixing rod are slidably arranged as a group.
[0012] As a preferred technical solution of this utility model: the number of polygonal plates and the number of sliders are six, and the six polygonal plates and sliders are arranged in a group to slide against the inner wall of the polygonal groove.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This multi-source high-precision dynamometer, through the coordinated use of a polygonal plate, a second slider, a polygonal slot, a second straight slot, and a fixing rod, achieves the fixation of the motor shaft by the rotation of the polygonal plate through the second slider, the polygonal slot, the second straight slot, and the fixing rod. At the same time, when connecting motor shafts of different models, the same coordinated transmission is used to fix the shafts of different models, thereby solving the problem of needing to manually replace and adjust different shaft connectors in existing equipment.
[0015] 2. This multi-source high-precision dynamometer device, through the combined use of a sphere, spring, and arc groove, achieves the effect of the sphere engaging with the arc groove under the spring's rebound, thereby fixing the test motor through the connecting rod. At the same time, through the combined transmission of the worm gear, worm, and slider one, slider one drives the positioning component and the test motor to slide towards the main body of the dynamometer through the straight groove one, thus solving the problem of the existing equipment requiring manual alignment and calibration of the test motor and the main body of the dynamometer before dynamometer testing. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0017] Figure 2 This is a schematic cross-sectional view of the present invention.
[0018] Figure 3 This is a schematic diagram of the workbench structure of this utility model;
[0019] Figure 4 This is a schematic diagram of the centering and calibration structure of this utility model;
[0020] Figure 5 This is a schematic diagram of the fixing structure of this utility model;
[0021] Figure 6 This is a schematic diagram of the rotating fixing structure of this utility model;
[0022] Figure 7 This utility model Figure 5 Enlarged structural diagram at point A in the middle;
[0023] Figure 8 This utility model Figure 4 Enlarged structural diagram at point B.
[0024] In the diagram: 1. Workbench; 2. Slide groove; 3. Straight groove one; 4. Positioning assembly; 5. Rotation and fixing assembly; 6. Dynamometer body; 401. Motor one; 402. Worm gear; 403. Worm; 404. Slider one; 405. Base plate; 406. Circular tube; 407. Cylinder one; 408. Connecting rod; 409. Cylinder two; 410. Spring; 411. Sphere; 412. Circular groove; 413. Test motor; 414. Arc groove; 501. Fixing plate; 502. Turntable one; 503. Connecting cylinder; 504. Polygonal groove; 505. Motor two; 506. Gear one; 507. Turntable two; 508. Gear groove; 509. Straight groove two; 510. Polygonal plate; 511. Slider two; 512. Fixing rod. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-8 A multi-source high-precision dynamometer includes a workbench 1, with a sliding groove 2 and a straight groove 3 respectively opened on the top of the workbench 1, and a positioning component 4, a rotation fixing component 5, and a dynamometer body 6 on the top of the workbench 1.
[0027] The rotating fixing assembly 5 includes a fixing plate 501, a turntable 502 rotatably connected to the inner wall of the fixing plate 501, a connecting cylinder 503 fixedly sleeved on the inner wall of the turntable 502, a polygonal groove 504 opened on the outer wall of the connecting cylinder 503, a motor 505 fixedly installed on the outer wall of the turntable 502, a gear 506 fixedly sleeved on the outer edge of the power output shaft of the motor 505, a turntable 507 rotatably connected to the outer wall of the connecting cylinder 503, a toothed groove 508 and a straight groove 509 respectively opened on the outer wall of the turntable 507, a polygonal plate 510 provided on the outer wall of the connecting cylinder 503, and a slider 511 and a fixing rod 512 fixedly installed on the outer wall of the polygonal plate 510 respectively.
[0028] In the above structure, by setting the rotating fixing component 5, when the dynamometer body 6 is measuring the power and torque of different types of motors, the rotating fixing component 5 will fix the outer wall of the rotating shaft of different types of motors.
[0029] In a preferred embodiment: the positioning component 4 includes a motor 401, a worm gear 402 is fixedly sleeved on the outer edge of the power output shaft of the motor 401, a worm 403 is meshed on the outer edge of the worm gear 402, a slider 404 is rotatably connected to the outer wall of the worm 403, a base plate 405 and a round tube 406 are fixedly mounted on the top of the slider 404, a cylinder 407 is provided on the inner wall of the round tube 406, a connecting rod 408 is fixedly mounted on the outer wall of the cylinder 407, a second cylinder 409 is fixedly installed on the inner wall of the cylinder 407, one end of a spring 410 is fixedly connected to the inner wall of the second cylinder 409, a ball 411 is fixedly connected to the other end of the spring 410, a circular groove 412 is opened on the outer wall of the connecting rod 408, a test motor 413 is provided on the top of the base plate 405, and an arc groove 414 is opened on the inner wall of the round tube 406;
[0030] In a preferred embodiment: there are several arc-shaped grooves 414, and the inner wall of several arc-shaped grooves 414 is adapted to the outer wall of sphere 411. Sphere 411 is located on the inner wall of circular groove 412, and the diameter of sphere 411 is larger than that of circular groove 412. The bottom shape of slider 404 and round tube 406 is the same as the inner wall shape of slide groove 2 and straight groove 3, respectively. The bottom of slider 404 and round tube 406 is slidably fitted to the inner wall of slide groove 2 and straight groove 3. Slider 404 is located on one side of workbench 1 and is positioned opposite to dynamometer body 6.
[0031] In the above structure, by setting up the sphere 411, spring 410, arc groove 414, worm gear 402, and worm 403, the test motor 413 to be tested is placed on top of the base plate 405, and the connecting rod 408 is placed on top of the circular tube 406. Then, by pulling down the connecting rod 408, the first cylinder 407 slides along the inner wall of the circular tube 406 under the tension of the connecting rod 408. When the sphere 411 contacts the inner wall of the circular tube 406, it drives the spring 410 to compress and move closer to the inner wall of the second cylinder 409. Then, by pulling the connecting rod 408 to the top of the test motor 413, the sphere 411... Under the rebound of spring 410, it will fit against the inner wall of one of the arc-shaped grooves 414, thereby fixing the test motor 413 to the top of the base plate 405 by the connecting rod 408. Then, by starting motor 401, the worm gear 402 will mesh with the outer edge of the worm 403 under the rotation of the output shaft of motor 401. The worm 403 will drive the slider 404 to slide along the inner wall of the groove 2. When the slider 404 slides, it will drive the round tube 406 to slide along the inner wall of the straight groove 3. At the same time, the slider 404 will also drive the test motor 413 to slide towards the dynamometer body 6.
[0032] In a preferred embodiment: the polygonal groove 504, the second motor 505, the first gear 506, the second turntable 507, the toothed groove 508, the second straight groove 509, the polygonal plate 510, the second slider 511, and the fixed rod 512 are regarded as a movable component, and the movable component is respectively arranged on both sides of the outer wall of the first turntable 502.
[0033] In the above structure, by setting up the polygonal groove 504, motor 2 505, gear 1 506, turntable 2 507, tooth groove 508, straight groove 2 509, polygonal plate 510, slider 2 511 and fixing rod 512, another movable component symmetrical about the fixing plate 501, namely the polygonal groove 504, motor 2 505, gear 1 506, turntable 2 507, tooth groove 508, straight groove 2 509, polygonal plate 510, slider 2 511 and fixing rod 512, will fix the test shaft of the dynamometer body 6.
[0034] In a preferred embodiment: the outer edge shape of gear 506 is the same as the outer edge shape of tooth groove 508, and the outer edge of gear 506 is meshed with the outer edge of tooth groove 508 and rotates.
[0035] In the above structure, by setting gear 506 and tooth groove 508, the outer edge of gear 506 will mesh with tooth groove 508 when it rotates, thereby driving tooth groove 508 to rotate.
[0036] In a preferred embodiment, the number of straight grooves 509 and the number of fixing rods 512 are six, and each straight groove 509 and fixing rod 512 are slidably arranged as a group;
[0037] In the above structure, by setting the straight groove 509 and the fixing rod 512, when the turntable 502 rotates, it will cause the six straight grooves 509 to rotate as well. When the six straight grooves 509 rotate, they will fit against the outer wall of the six fixing rods 512, thereby enabling the six fixing rods 512 to slide along the direction of the inner wall of the six straight grooves 509.
[0038] In a preferred embodiment: the number of polygonal plates 510 and the number of sliders 511 are six, and the six polygonal plates 510 and sliders 511 are arranged in a group to slide against the inner wall of the polygonal groove 504.
[0039] In the above structure, by setting up the polygonal plate 510 and the slider 511, the six polygonal plates 510 will drive the six sliders 511 to slide relative to each other along the inner wall of the polygonal groove 504.
[0040] Working principle: During use, the test motor 413 to be tested is placed on top of the base plate 405. Then, the connecting rod 408 is placed on top of the circular tube 406. Pulling down the connecting rod 408 causes the first cylinder 407 to slide along the inner wall of the circular tube 406 under the tension of the connecting rod 408. When the ball 411 contacts the inner wall of the circular tube 406, it compresses the spring 410, causing it to move closer to the inner wall of the second cylinder 409. Pulling the connecting rod 408 to the top of the test motor 413 causes the ball 411 to bounce back from the spring 410 and move into one of the arc-shaped grooves 414. The walls are fitted together, so that the connecting rod 408 will fix the test motor 413 to the top of the base plate 405. Then, by starting the motor 401, the worm gear 402 will mesh with the outer edge of the worm 403 under the rotation of the output shaft of the motor 401. The worm 403 will drive the slider 404 to slide along the inner wall of the groove 2. When the slider 404 slides, it will drive the round tube 406 to slide along the inner wall of the straight groove 3. At the same time, the slider 404 will also drive the test motor 413 to slide towards the dynamometer body 6, so that the test motor 413 will slide towards the rotating fixed component 5.
[0041] When the shaft of the test motor 413 extends into the inner cavity of the connecting cylinder 503, starting the second motor 505 causes the output shaft of the second motor 505 to drive the first gear 506 to rotate. The outer edge of the rotating first gear 506 then meshes with the tooth groove 508, causing the tooth groove 508 to drive the second turntable 507 to rotate. The rotating turntable 507 then drives the six straight grooves 509 on its outer wall to rotate. This causes the six fixed rods 512 to move along the six straight grooves 509 under the rotation of the six rotating straight grooves 509. The sliding of the inner wall of 09 causes the six fixed rods 512 to slide relative to the six polygonal plates 510 and the six sliders 511 along the inner wall of the polygonal groove 504. This causes one end of the six polygonal plates 510 to contact the outer wall of the shaft of the test motor 413, thus achieving a fixed connection of the shaft of the dynamometer body 6 to the test motor 413 during testing. At the same time, when it is necessary to connect shafts of different models of motors, the same operation can be used to fix the six polygonal plates 510 to the shafts of different models.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A multi-source high-precision dynamometer device comprising a workbench (1), characterized in that: The top of the workbench (1) is respectively provided with a sliding groove (2) and a straight slot (3), and the top of the workbench (1) is provided with a positioning assembly (4), a rotating fixing assembly (5) and a dynamometer main body (6). The rotating fixing assembly (5) comprises a fixed plate (501), the inner wall of the fixed plate (501) is rotationally connected with a rotating disc (502), the inner wall of the rotating disc (502) is fixedly sleeved with a connecting cylinder (503), the outer wall of the connecting cylinder (503) is provided with a polygonal groove (504), the outer wall of the rotating disc (502) is fixedly installed with a motor (505), the power output shaft of the motor (505) is fixedly sleeved with a gear (506) along the outer side, the outer wall of the connecting cylinder (503) is rotationally connected with a rotating disc (507), the outer wall of the rotating disc (507) is respectively provided with a gear slot (508) and a straight slot (509), and the outer wall of the connecting cylinder (503) is provided with a polygonal plate (510), the outer wall of the polygonal plate (510) is respectively fixedly installed with a sliding block (511) and a fixed rod (512).
2. A multi-source high-precision dynamometer device according to claim 1, characterized in that: The positioning assembly (4) comprises a motor (401), the power output shaft of the motor (401) is fixedly sleeved with a worm gear (402), the outer side of the worm gear (402) is engaged with a worm (403), the outer wall of the worm (403) is rotationally connected with a sliding block (404), the top of the sliding block (404) is respectively fixedly installed with a bottom plate (405) and a circular tube (406), the inner wall of the circular tube (406) is provided with a cylinder (407), the outer wall of the cylinder (407) is fixedly installed with a connecting rod (408), the inner wall of the cylinder (407) is fixedly installed with a cylinder (409), one end of the spring (410) fixedly connected with the inner wall of the cylinder (409) is fixedly connected with a spherical ball (411), the outer wall of the connecting rod (408) is provided with a circular groove (412), and the top of the bottom plate (405) is provided with a test motor (413).
3. A multi-source high-precision dynamometer device according to claim 2, characterized in that: The number of the arc grooves (414) is several, the inner walls of the several arc grooves (414) are matched with the outer wall of the spherical ball (411), the spherical ball (411) is located in the inner wall of the circular groove (412), and the diameter of the spherical ball (411) is larger than that of the circular groove (412), the shapes of the bottom of the sliding block (404) and the circular tube (406) are same with those of the inner walls of the sliding groove (2) and the straight slot (3), and the bottom of the sliding block (404) and the circular tube (406) are slidably arranged in the inner walls of the sliding groove (2) and the straight slot (3), and the sliding block (404) is arranged on one side of the workbench (1) and is oppositely arranged with the dynamometer main body (6).
4. The multi-source high-precision dynamometer device according to claim 1, characterized in that: The polygonal slot (504), the motor two (505), the gear one (506), the rotating disc two (507), the tooth slot (508), the straight slot two (509), the polygonal plate (510), the sliding block two (511) and the fixed rod (512) are regarded as an active assembly, and the active assembly is arranged on the outer walls of the rotating disc one (502) respectively.
5. The multi-source high-precision dynamometer device according to claim 1, characterized in that: The shape of the outer edge of the gear one (506) is same as that of the tooth slot (508), and the outer edge of the gear one (506) is rotatably arranged in the tooth slot (508).
6. A multi-source high-precision dynamometer device according to claim 1, characterized in that: The number of the straight slot two (509) and the fixed rod (512) is six respectively, and each straight slot two (509) and the fixed rod (512) are slidably arranged.
7. The multi-source high-precision dynamometer device according to claim 1, characterized in that: The number of the polygonal plate (510) and the sliding block two (511) is six respectively, and six polygonal plates (510) and sliding blocks two (511) are slidably arranged on the inner wall of the polygonal slot (504) in one group.