CN115240520B - Theoretical mechanics experimental device based on rotor moment of inertia - Google Patents
Theoretical mechanics experimental device based on rotor moment of inertia Download PDFInfo
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- CN115240520B CN115240520B CN202210855433.XA CN202210855433A CN115240520B CN 115240520 B CN115240520 B CN 115240520B CN 202210855433 A CN202210855433 A CN 202210855433A CN 115240520 B CN115240520 B CN 115240520B
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/08—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics
- G09B23/10—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for statics or dynamics of solid bodies
Abstract
The application relates to the technical field of rotational inertia, in particular to a theoretical mechanics experimental device based on rotational inertia of a rotor, which comprises the rotor, a torque sensor, a three-jaw chuck, wherein the rotor can be detached on the three-jaw chuck, and the theoretical mechanics experimental device further comprises: the lower side of the bottom plate is fixedly provided with a plurality of supporting legs; the diamond-shaped frame is provided with a rotor at the inner side of the diamond-shaped frame, and a plurality of adjustable stabilizing components are arranged between the diamond-shaped frame and the rotor; two L-shaped frames, one end of each L-shaped frame is fixed on the upper side of the bottom plate, and the other end of each L-shaped frame is fixed on the outer side of the diamond-shaped frame; the driving plate, the driving plate downside is equipped with automatic laminating lifting unit, is equipped with contact drive subassembly between driving plate upside and the rotor. According to the application, the three-jaw chuck, the bottom plate, the supporting legs, the diamond-shaped frame, the L-shaped frame, the driving plate, the connecting stepped shaft, the supporting frame and the guide rod are arranged, so that the three-jaw chuck has the functions of general clamping, stable limiting, general adjustment, automatic experiment and general experiment.
Description
Technical Field
The application relates to the technical field of rotational inertia, in particular to a theoretical mechanics experimental device based on rotor rotational inertia.
Background
Moment of inertia is a measure of the inertia of a rigid body as it rotates about an axis (the characteristic of a rotating object that holds it in uniform circular motion or stationary). The role of moment of inertia in rotational dynamics corresponds to the mass in linear dynamics and can be formally understood as the inertia of an object for rotational movement, which is used to establish a relationship between several quantities of angular momentum, angular velocity, moment and angular acceleration.
The rotor refers to a rotating body supported by a bearing. An object such as an optical disc that does not have a rotating shaft itself can be considered a rotor when it employs a rigid connection or an additional shaft. Rotors are the main components of high-speed rotation in power machines or work machines such as motors, generators, gas turbines, and turbine compressors. During the selection and testing of the rotor, the moment of inertia of the rotor needs to be tested by using a mechanical test device.
In the prior art, mechanical experiment equipment is used for clamping a rotor when the rotor moment of inertia is tested, and clamps of different specifications are required to be replaced when the rotor with different diameters is tested, so that the mechanical experiment equipment has no general function and is inconvenient to use, and therefore, a theoretical mechanical experiment device based on the rotor moment of inertia is provided for solving the problems.
Disclosure of Invention
The application aims to solve the defects that mechanical experimental equipment in the prior art needs to clamp a rotor when the rotor moment of inertia is tested, and clamps with different specifications need to be replaced when the rotor with different diameters is tested, so that the mechanical experimental equipment has no general function and is inconvenient to use, and provides a theoretical mechanical experimental device based on the rotor moment of inertia.
In order to achieve the above purpose, the present application adopts the following technical scheme:
the theoretical mechanics experimental device based on rotor moment of inertia is designed, including rotor, torsion torque sensor, three jaw chuck, the rotor can be dismantled on three jaw chuck, still includes:
the bottom plate is fixedly provided with a plurality of supporting legs at the lower side;
the diamond-shaped frame is provided with a rotor at the inner side of the diamond-shaped frame, and a plurality of adjustable stabilizing components are arranged between the diamond-shaped frame and the rotor;
one end of each L-shaped frame is fixed on the upper side of the bottom plate, and the other end of each L-shaped frame is fixed on the outer side of the diamond-shaped frame;
the automatic laminating lifting assembly is arranged on the lower side of the driving plate, and the contact type driving assembly is arranged between the upper side of the driving plate and the rotor;
the three-jaw chuck is fixed on one side of the connecting stepped shaft, and the torque sensor is fixed on the other side of the connecting stepped shaft;
the support frame is fixed on the upper side of the bottom plate, and the torque force and torque sensor is fixed on one side of the support frame.
Preferably, the adjustable stabilizing component comprises a guide rod, a guide hole is formed in the outer side of the diamond-shaped frame, the guide rod can slide on the inner side of the guide hole, a U-shaped wheel seat is fixedly arranged at one end of the guide rod, a stabilizing wheel is rotatably arranged on the inner side of the U-shaped wheel seat through a rotating shaft, the stabilizing wheel can be in contact with the outer side of the rotor, and a locking component is arranged on one side of the guide rod.
Preferably, the locking assembly comprises a U-shaped locking seat, the U-shaped locking seat is fixed on one outer side of the diamond-shaped frame, the guide rod is arranged on the inner side of the U-shaped locking seat, the clamping plate is arranged on the inner side of the U-shaped locking seat in a sliding mode, sliding blocks are fixedly arranged on two sides of the clamping plate, which are far away from each other, of the U-shaped locking seat, sliding holes are formed in two sides of the U-shaped locking seat, the sliding blocks are slidably arranged on the inner side of the sliding holes, the guide rod is arranged between the U-shaped locking seat and the clamping plate, an A wedge block is fixedly arranged on one side of the clamping plate, a B wedge block is slidably and contactably connected on one side of the A wedge block, a fixing plate is fixedly arranged on one side of the U-shaped locking seat, a threaded hole is formed in the inner side of the threaded hole, one end of the locking bolt is rotatably arranged on one side of the B wedge block, two through holes are formed in the inner side of the through holes, and one end of the connecting rod is fixedly arranged on one side of the B wedge block.
Preferably, the automatic laminating lifting assembly comprises a U-shaped lifting frame, two lifting holes are formed in the upper side of a bottom plate, the U-shaped lifting frame is all slidable on the inner side of the lifting holes, a plurality of springs are fixedly arranged between the lower side of a driving plate and the upper side of the bottom plate, a mounting hole is formed in the upper side of the bottom plate, a hydraulic cylinder is fixedly arranged on the inner side of the mounting hole, the hydraulic cylinder is required to be externally connected with an electromagnetic valve through an oil pipe, a lower pressing sheet is fixedly arranged at the shaft end of the hydraulic cylinder, the lower side of the lower pressing sheet can be contacted with one side of the U-shaped lifting frame, and the lower pressing sheet is arranged on the lower side of the bottom plate.
Preferably, the contact type driving assembly comprises a motor, the motor is fixed on the upper side of the driving plate, the motor is required to be externally connected with a power supply through a wire and can be switched on and off, a rotating shaft is fixedly arranged at the shaft end of the motor, a plurality of connecting seats are rotatably arranged on the outer side of the rotating shaft and are fixed on the upper side of the driving plate, driving wheels are fixedly arranged on the outer side of the rotating shaft, anti-slip rings are fixedly arranged on the outer side of the driving wheels, and the anti-slip rings can be contacted with the outer side of the rotor.
Preferably, the outer side of the connecting stepped shaft is rotatably provided with a supporting ring, the outer side of the supporting ring is fixedly provided with a supporting rod, and the lower end of the supporting rod is fixed on the upper side of the bottom plate.
The theoretical mechanics experimental device based on the rotor moment of inertia has the beneficial effects that:
(1) Through setting up three-jaw chuck, bottom plate, supporting leg, diamond frame, L type frame, guide bar, U type wheel seat, stabilizing wheel, U type locking seat, grip block, slider, A wedge, B wedge, fixed plate, locking bolt, connecting rod, make it have general clamping, stable spacing, general regulatory function, can carry out the clamping to the rotor of different diameters, and can stabilize spacing to the rotor in the experimental process, have higher stability.
(2) Through setting up torsion torque sensor, drive plate, connection step shaft, support frame, U crane, spring, pneumatic cylinder, lower preforming, motor, rotation axis, connecting seat, drive wheel, antiskid circle, make it have automatic experiment, general experimental function, can carry out automatic experiment to the rotor of different diameters.
(3) The support ring and the support rod are arranged, so that the support ring and the support rod have higher stability and support property.
Drawings
Fig. 1 is a schematic diagram of a front perspective structure of a theoretical mechanical experiment device based on rotor moment of inertia;
fig. 2 is a schematic diagram of a front cut-away perspective structure of a theoretical mechanics experimental device based on rotor moment of inertia according to the present application;
FIG. 3 is a schematic view of the enlarged partial structure of the area A in FIG. 2 according to the present application;
fig. 4 is a schematic view of a partially cut-away side perspective structure of a theoretical mechanical experiment device based on rotor moment of inertia according to the present application;
FIG. 5 is a schematic view of the partial enlarged structure of the area B in FIG. 4 according to the present application;
fig. 6 is a schematic side partial perspective view of a theoretical mechanical experiment device based on rotor moment of inertia.
In the figure: the device comprises a rotor 1, a torque sensor 2, a three-jaw chuck 3, a bottom plate 4, a supporting leg 5, a diamond-shaped frame 6, a L-shaped frame 7, a driving plate 8, a connecting stepped shaft 9, a supporting frame 10, a guide rod 11, a U-shaped wheel seat 12, a stabilizing wheel 13, a U-shaped locking seat 14, a clamping plate 15, a sliding block 16, a wedge block 17A, a wedge block 18B, a fixing plate 19, a locking bolt 20, a connecting rod 21, a U-shaped lifting frame 22, a spring 23, a hydraulic cylinder 24, a lower pressing piece 25, a motor 26, a rotating shaft 27, a connecting seat 28, a driving wheel 29, a non-slip ring 30, a supporting ring 31 and a supporting rod 32.
Detailed Description
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments.
Referring to fig. 1-6, a theoretical mechanics experimental device based on rotor moment of inertia, including a rotor 1, a torque sensor 2, a three-jaw chuck 3, wherein the rotor 1 is detachable on the three-jaw chuck 3, further including:
the bottom plate 4, the underside of the bottom plate 4 is fixedly provided with a plurality of supporting legs 5;
the diamond-shaped frame 6, the rotor 1 is arranged at the inner side of the diamond-shaped frame 6, a plurality of adjustable stabilizing components are arranged between the diamond-shaped frame 6 and the rotor 1, each adjustable stabilizing component comprises a guide rod 11, a guide hole is arranged at the outer side of the diamond-shaped frame 6, the guide rods 11 can slide at the inner side of the guide holes, one end of each guide rod 11 is fixedly provided with a U-shaped wheel seat 12, the inner side of each U-shaped wheel seat 12 is rotatably provided with a stabilizing wheel 13 through a rotating shaft, the stabilizing wheels 13 can be contacted with the outer side of the rotor 1, one side of each guide rod 11 is provided with a locking component, each locking component comprises a U-shaped locking seat 14, the U-shaped locking seat 14 is fixed at the outer side of the diamond-shaped frame 6, each guide rod 11 is arranged at the inner side of the U-shaped locking seat 14, a clamping plate 15 is slidably arranged at the inner side of the U-shaped locking seat 14, sliding blocks 16 are fixedly arranged at the two sides of each clamping plate 15 away from each other, sliding holes are respectively arranged at the two sides of each U-shaped locking seat 14 away from each other, the guide rod 11 is arranged between the U-shaped locking seat 14 and the clamping plate 15, an A wedge block 17 is fixedly arranged on one side of the clamping plate 15, a B wedge block 18 is slidably and contactably connected on one side of the A wedge block 17, a fixing plate 19 is fixedly arranged on one side of the U-shaped locking seat 14, a threaded hole is formed in one side of the fixing plate 19, a locking bolt 20 is arranged on the inner side of the threaded hole in a threaded connection mode, one end of the locking bolt 20 is rotatably arranged on one side of the B wedge block 18, two through holes are formed in one side of the fixing plate 19, a connecting rod 21 is slidably arranged on the inner side of each through hole, one end of the connecting rod 21 is fixedly arranged on one side of the B wedge block 18, so that the universal clamping, stable limiting and universal adjusting functions can be realized on rotors with different diameters, the rotors can be stably limited in the experimental process, and the universal clamping device has higher stability, and the guide rod is particularly applied to: when the moment of inertia of the rotor 1 needs to be tested, the rotor 1 is required to be clamped on the three-jaw chuck 3, and the three-jaw chuck 3 can clamp and fix shaft workpieces with different diameters, so that the three-jaw chuck 3 can clamp and fix the rotor 1 with different diameters, further has a general clamping function, after the rotor 1 is clamped on the three-jaw chuck 3, the locking bolt 20 can be unscrewed, then the guide rod 11 is slidably adjusted, so that the stabilizing wheel 13 is contacted with the rotor 1, the rotor 1 can be clamped between the stabilizing wheels 13, then the locking bolt 20 is screwed, the guide rod 11 is clamped and fixed between the U-shaped locking seat 14 and the clamping plate 15, further, the rotor 1 can be prevented from shaking when rotating, further has higher stability, and the stabilizing wheel 13 can rotate along with the shaft workpieces when the rotor 1 rotates, so that the rotor 1 is not prevented from rotating, and the position of the general stabilizing wheel 13 can be adjusted according to the rotor 1 with different diameters due to the fact that the guide rod 11 and the diamond-shaped frame 6 can be adjusted and locked;
two L-shaped frames 7, wherein one end of each L-shaped frame 7 is fixed on the upper side of the bottom plate 4, and the other end of each L-shaped frame 7 is fixed on the outer side of the diamond-shaped frame 6;
the automatic laminating lifting assembly comprises a U-shaped lifting frame 22, two lifting holes are formed in the upper side of a bottom plate 4, the U-shaped lifting frame 22 can slide on the inner side of the lifting holes, a plurality of springs 23 are fixedly arranged between the lower side of the driving plate 8 and the upper side of the bottom plate 4, a mounting hole is formed in the upper side of the bottom plate 4, a hydraulic cylinder 24 is fixedly arranged on the inner side of the mounting hole, the hydraulic cylinder 24 is required to be externally connected with an electromagnetic valve through an oil pipe, a lower pressing piece 25 is fixedly arranged at the shaft end of the hydraulic cylinder 24, the lower side of the lower pressing piece 25 can be contacted with one side of the U-shaped lifting frame 22, and the lower pressing piece 25 is arranged on the lower side of the bottom plate 4;
be equipped with contact drive subassembly between drive plate 8 upside and rotor 1, contact drive subassembly includes motor 26, motor 26 fixes the upside at drive plate 8, motor 26 need be through the external power supply switch of wire, the fixed rotation axis 27 that is equipped with of motor 26's axle head, rotation axis 27 outside rotatable be equipped with a plurality of connecting seat 28, the upside at drive plate 8 is all fixed to connecting seat 28, the fixed driving wheel 29 that is equipped with in rotation axis 27 outside, driving wheel 29 outside is fixed and is equipped with anti-skidding circle 30, anti-skidding circle 30 can contact with rotor 1 outside, make it have automatic experiment, general experimental function, can carry out automatic experiment to rotor 1 of different diameters, when the concrete implementation: when the rotor 1 is clamped on the three-jaw chuck 3 and fixed between the stabilizing wheels 13, the hydraulic cylinder 24 can be controlled to retract, when the hydraulic cylinder 24 is retracted, the U-shaped lifting frame 22 and the driving plate 8 can automatically move upwards due to the tension of the spring 23, so that the anti-slip ring 30 can automatically prop up on the rotor 1, and under the condition that the rotors 1 are different, the anti-slip ring 30 can prop up on the rotor 1, so that the universal experiment function can be realized, after the anti-slip ring 30 props up on the rotor 1, the motor 26 can be controlled to rotate, when the motor 26 rotates, the anti-slip ring 30 and the driving wheel 29 are driven to rotate together, when the anti-slip ring 30 rotates, the rotor 1, the three-jaw chuck 3, the connecting stepped shaft 9 and one end of the torque sensor 2 are driven to rotate, when the rotor 1 is accelerated to a certain rotating speed, the hydraulic cylinder 24 can be controlled to extend, the driving plate 8 and the U-shaped lifting frame 22 can be lowered together after the hydraulic cylinder 24 extends, the anti-slip ring 30 can be separated from the rotor 1, the rotor 1 can lose power, at the moment, the rotor 1 can continue to rotate due to inertia and residual force, at the moment, the rotational inertia of the rotor 1 can be tested by subtracting the rotational inertia of other parts according to the measured value of the torque sensor 2, and further automatic experiments can be realized;
the three-jaw chuck 3 is fixed on one side of the connecting stepped shaft 9, the torque sensor 2 is fixed on the other side of the connecting stepped shaft 9, the outer side of the connecting stepped shaft 9 is rotatably provided with a supporting ring 31, a supporting rod 32 is fixedly arranged on the outer side of the supporting ring 31, and the lower end of the supporting rod 32 is fixed on the upper side of the bottom plate 4, so that the three-jaw chuck has higher stability and supportability, and the torque sensor is particularly applied to the following steps: when an experiment is carried out, the connecting stepped shaft 9 can rotate in the supporting ring 31, so that normal experiment cannot be influenced, and the gravity of the three-jaw chuck 3 and the connecting stepped shaft 9 can act on the bottom plate 4 through the supporting rod 32, so that acting force of the torque sensor 2 in the vertical direction can be reduced, and the torque sensor 2 can be protected;
the support frame 10, support frame 10 is fixed in the upside of bottom plate 4, and torsion torque sensor 2 is fixed on support frame 10 one side.
It should be noted that:
the application provides that: the torque sensor 2, the three-jaw chuck 3, the hydraulic cylinder 24 and the motor 26 are all of the prior art, wherein:
the torque sensor 2 is a torque sensor, which is also called a torque sensor, a torque sensor and a torque meter, and is divided into two types of dynamic and static, wherein the dynamic torque sensor can be called a torque sensor, a torque rotation speed sensor, a non-contact torque sensor, a rotation torque sensor and the like. Torque sensors are the detection of the perception of torsional moment on various rotating or non-rotating mechanical components. The torque sensor converts the physical change in torque force into an accurate electrical signal. The torque sensor can be applied to manufacturing a viscometer and an electric (pneumatic and hydraulic) torque wrench, and has the advantages of high precision, quick frequency response, good reliability, long service life and the like.
The three-jaw chuck 3 is a three-jaw chuck and refers to a machine tool accessory for clamping and positioning a workpiece by utilizing radial movement of three movable jaws uniformly distributed on a chuck body. The three-jaw chuck consists of a chuck body, movable jaws and a jaw driving mechanism. The lower surface of the three-jaw chuck is provided with threads which are meshed with planar threads on the back surface of the bevel disk gear, when the bevel disk gear is rotated by using a spanner through a square hole, the bevel disk gear rotates, and the planar threads on the back surface drive the three jaws to approach or withdraw from the center at the same time, so as to clamp workpieces with different diameters. Three reverse claws are used for replacing three claws for installing workpieces with larger diameters. The self-centering accuracy of the three-jaw chuck is 0.05-0.15mm. The precision of machining a workpiece with a three-jaw chuck is affected by the precision of the chuck manufacture and wear after use.
The hydraulic cylinder 24 is a hydraulic cylinder, and is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). The device has simple structure and reliable operation. When it is used to realize reciprocating motion, it can eliminate speed reducer, and has no transmission clearance and smooth motion, so that it can be widely used in hydraulic systems of various machines. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between two sides of the effective area of the piston; the hydraulic cylinder basically consists of a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device are necessary for other devices depending on the specific application.
The motor 26 is an electric motor, and is a device that converts electric energy into mechanical energy. The magnetic power rotating torque is formed by generating a rotating magnetic field by using an electrified coil (namely a stator winding) and acting on a rotor (such as a squirrel-cage closed aluminum frame). The motors are classified into direct current motors and alternating current motors according to the power supply, and most of the motors in the power system are alternating current motors, and can be synchronous motors or asynchronous motors (the magnetic field rotating speed of a motor stator and the rotating speed of a rotor do not keep synchronous speed). The motor mainly comprises a stator and a rotor, and the direction of forced movement of an electrified wire in a magnetic field is related to the current direction and the direction of a magnetic induction line (magnetic field direction). The motor works in the principle that the magnetic field acts on the current to rotate the motor.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art, who is within the scope of the present application, should make equivalent substitutions or modifications according to the technical scheme of the present application and the inventive concept thereof, and should be covered by the scope of the present application.
Claims (4)
1. The utility model provides a theoretical mechanics experimental apparatus based on rotor moment of inertia, includes rotor (1), torsion torque sensor (2), three jaw chuck (3), rotor (1) can dismantle on three jaw chuck (3), its characterized in that still includes:
the bottom plate (4), the downside of the bottom plate (4) is fixedly provided with a plurality of supporting legs (5);
the rotor (1) is arranged at the inner side of the diamond-shaped frame (6), and a plurality of adjustable stabilizing components are arranged between the diamond-shaped frame (6) and the rotor (1);
two L-shaped frames (7), wherein one end of each L-shaped frame (7) is fixed on the upper side of the bottom plate (4), and the other end of each L-shaped frame (7) is fixed on the outer side of the diamond-shaped frame (6);
the automatic laminating lifting assembly is arranged at the lower side of the driving plate (8), and a contact type driving assembly is arranged between the upper side of the driving plate (8) and the rotor (1);
the three-jaw chuck (3) is fixed on one side of the connecting stepped shaft (9), and the torque sensor (2) is fixed on the other side of the connecting stepped shaft (9);
the support frame (10), support frame (10) is fixed in the upside of bottom plate (4), torsion torque sensor (2) is fixed on support frame (10) one side, automatic laminating lifting assembly includes U type crane (22), bottom plate (4) upside is equipped with two lift holes, U type crane (22) all slidable is inboard at the lift hole, fixed a plurality of springs (23) that are equipped with between drive plate (8) downside and bottom plate (4) upside, bottom plate (4) upside is equipped with the mounting hole, the mounting hole inboard is fixed and is equipped with pneumatic cylinder (24), pneumatic cylinder (24) need be through the external solenoid valve of oil pipe, the axle head of pneumatic cylinder (24) is fixed and is equipped with lower preforming (25), lower preforming (25) downside can be contacted with U type crane (22) one side, lower preforming (25) are established in bottom plate (4) downside, contact type drive assembly includes motor (26), motor (26) are fixed in the upside of drive plate (8), motor (26) are equipped with connecting seat (27) in the rotation axis (28) are all equipped with in the fixed rotation seat (28), the anti-slip device is characterized in that a driving wheel (29) is fixedly arranged on the outer side of the rotating shaft (27), an anti-slip ring (30) is fixedly arranged on the outer side of the driving wheel (29), and the anti-slip ring (30) can be in contact with the outer side of the rotor (1).
2. The theoretical mechanics experimental device based on rotor moment of inertia according to claim 1, wherein the adjustable stabilizing component comprises a guide rod (11), a guide hole is formed in the outer side of the diamond-shaped frame (6), the guide rod (11) can slide on the inner side of the guide hole, a U-shaped wheel seat (12) is fixedly arranged at one end of the guide rod (11), a stabilizing wheel (13) is rotatably arranged on the inner side of the U-shaped wheel seat (12) through a rotating shaft, the stabilizing wheel (13) can be in contact with the outer side of the rotor (1), and a locking component is arranged on one side of the guide rod (11).
3. The theoretical mechanics experimental device based on rotor moment of inertia according to claim 2, wherein the locking assembly comprises a U-shaped locking seat (14), the U-shaped locking seat (14) is fixed on one side outside the diamond-shaped frame (6), the guide rod (11) is arranged on the inner side of the U-shaped locking seat (14), a clamping plate (15) is slidably arranged on the inner side of the U-shaped locking seat (14), sliding blocks (16) are fixedly arranged on two sides of the clamping plate (15) away from each other, sliding holes are formed on two sides of the U-shaped locking seat (14) away from each other, the sliding blocks (16) are slidably arranged on the inner sides of the sliding holes, the guide rod (11) is arranged between the U-shaped locking seat (14) and the clamping plate (15), a wedge-shaped block (17) is fixedly arranged on one side of the clamping plate (15), a wedge-shaped block (18) is slidably and contactably connected on one side of the U-shaped locking seat (14), a fixing plate (19) is fixedly arranged on one side of the fixing plate (19), a threaded hole is formed on one side of the inner side of the fixing plate (19), a threaded hole is formed in the connecting rod (20), one end of the two threaded bolts (20) is fixedly arranged on one side of the threaded bolt (20), one end of each connecting rod (21) is fixed on one side of the B wedge block (18).
4. The theoretical mechanics experimental device based on rotor moment of inertia according to claim 1, wherein a supporting ring (31) is rotatably arranged on the outer side of the connecting stepped shaft (9), a supporting rod (32) is fixedly arranged on the outer side of the supporting ring (31), and the lower end of the supporting rod (32) is fixed on the upper side of the bottom plate (4).
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| CN214693227U (en) * | 2021-04-29 | 2021-11-12 | 太原金域临床检验所有限公司 | Spiral cover opener |
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| RU183308U1 (en) * | 2017-12-28 | 2018-09-17 | федеральное государственное бюджетное образовательное учреждение высшего образования "Московский государственный технический университет имени Н.Э. Баумана (национальный исследовательский университет)" (МГТУ им. Н.Э. Баумана) | A device for studying the law of conservation of the kinetic moment of a mechanical system |
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