CN210719495U - Portable revolving body rotation resistance moment measuring system - Google Patents
Portable revolving body rotation resistance moment measuring system Download PDFInfo
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- CN210719495U CN210719495U CN201921836133.7U CN201921836133U CN210719495U CN 210719495 U CN210719495 U CN 210719495U CN 201921836133 U CN201921836133 U CN 201921836133U CN 210719495 U CN210719495 U CN 210719495U
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Abstract
The utility model provides a portable revolving body rotation resistance moment measuring system, which comprises a collision block, wherein the collision block is adsorbed on the excircle of a revolving body to be measured, a transmitting mechanism, an energy storage spring and a collision rod are sequentially arranged in the shell from the handle side to the outside, a trigger is arranged outside, and the trigger is connected to a host module through signals; a wrench is arranged at the outer end of the energy storage spring, the wrench moves along the clamping groove and can be clamped with each gear, a magnet for adsorbing the impact bar is arranged at the front end of the energy storage spring, and a clamping ring is arranged at the front end of the shell; the line distance belt is provided with a fixed grid and fixed on the excircle of the rotator, the bottom of the magnetic base is arranged on a fixed device of the rotator to be measured, the upper part of the magnetic base is connected to the measuring head through a position adjusting device, the measuring head is aligned with the line distance belt, and the measuring head is connected to the host module through a signal. Portable solid of revolution rotation resistance moment measurement system, simple structure, carry and convenient operation, improved the solid of revolution rotation resistance moment measuring convenience.
Description
Technical Field
The utility model belongs to electromechanical product detection area especially relates to a portable solid of revolution rotation resistance moment measurement system.
Background
The rolling bearing is one of the core parts of advanced electromechanical equipment, precision instruments, large and heavy equipment and the like, has multiple models and wide application, such as a battery pole piece rolling mill, medical equipment, a machine tool feeding system, transmission transfer equipment and the like. Along with the improvement of the equipment precision, the influence of the friction resistance moment of the rolling bearing on the equipment precision and the precision retentivity is increasingly prominent. The national standard GB/T32562-2016 method for measuring friction torque of rolling bearing products specifies the technical method for measuring the friction torque of the rolling bearing products, and comprises 3 methods such as a transmission measurement method, a balance measurement method and an energy measurement method. However, these methods are only applicable to a single bearing in a free state, and there is no specific measurement standard for a set of bearings (2-4 set is 1 set) and a set of bearings (2-4 set is 1 set) in a pre-tensioned state.
At present, most equipment manufacturing enterprises have no clear assembly process technical indexes for the assembly of the revolving body containing the bearing, and lack effective inspection means and corresponding detection tools; so that the enterprise does not have a friction torque quantitative detection link specially aiming at the bearing installation and debugging stage, or the detection method is too complex and has no popularization (for example, the laser interferometer is adopted to measure the key bearing part, the equipment is expensive, the structure is complex, generally a professional worker needs to be arranged for operation and use, and the debugging and measuring efficiency is very low), so that the product quality of the link is out of control.
When the bearing is not assembled properly, other parts need to be adjusted or electric program compensation is utilized, the problem of hardware is transferred to other hardware or software headache medical feet, and higher requirements are put forward to other links, so that the production cost of the whole hardware is increased, the software is difficult to debug, the product stability is poor, high-density maintenance and debugging are needed, and sometimes the product cannot reach the design index.
Disclosure of Invention
In view of this, the utility model aims at providing a portable solid of revolution resistance moment measurement system to solve the problem that contains the unable quantitative detection of solid of revolution resistance moment (the friction torque of bearing assembly) in the bearing equipment production process.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a portable revolving body rotation resistance moment measuring system comprises a starting module, a detecting module and a host module, wherein the starting module comprises a shell and a collision block, the collision block is used for being installed on the excircle of a revolving body to be measured, the shell is of a shell structure of a pistol, a clamping groove is formed in the shell, a plurality of gears are uniformly distributed on the clamping groove, a transmitting mechanism, an energy storage spring and a collision rod are sequentially installed in the shell from the handle side to the outside, a trigger is installed on the outer portion of the shell, and the trigger is connected to the host module through signals; a wrench is arranged at the outer end of the energy storage spring, the wrench moves along the clamping groove and can be clamped with each gear, a magnet for adsorbing the impact bar is arranged at the foremost end of the energy storage spring, a clamping ring is fixedly arranged at the foremost end of the shell cylinder, and the clamping ring is sleeved with the impact bar; the detection module comprises a measuring head, a position adjusting device, a magnetic base and a line distance belt, wherein a fixed grid is arranged on the line distance belt and is fixed on the excircle of the rotator, the bottom of the magnetic base is detachably mounted on the fixed device of the rotator to be measured, the upper part of the magnetic base is connected to the measuring head through the position adjusting device, the measuring head is aligned to the line distance belt, and the side head is connected to the host module through a data line.
Furthermore, the distance between the front end of the impact rod and the impact block is larger than the compression amount of the energy storage spring.
Furthermore, the tail part of the striking rod is provided with an annular clamping head, the outer diameter of the annular clamping head is larger than the inner diameter of the clamping ring, and the head part of the striking rod is of a spherical structure.
Furthermore, position adjustment device's cross section is U type structure, including a pole, No. two poles and No. three poles, a pole one end fixed connection to magnetic base, other end fixed connection to the first end of No. two poles, and the second of No. two poles holds the first end with No. three poles articulated, and the second of No. three poles holds fixed connection to gauge head.
Further, the line distance belt is pasted or wound on the outer circle of the rotary body for one circle.
Furthermore, two impact blocks are adsorbed on the excircle of the revolving body, the centers of the two impact blocks are positioned on the same section of the revolving body, and the two impact blocks are separated by 180 degrees in the circumferential direction.
Further, the magnetic force value of the magnet is not less than the gravity of the striker.
Compared with the prior art, portable solid of revolution rotation resistance moment measurement system have following advantage:
(1) portable solid of revolution rotation resistance moment measurement system, when can be high-efficient accurate assembling to solid of revolution class spare part, the rotation resistance moment that produces detects, ensures the rotation resistance moment control of assembly product at reasonable within range to guarantee the stability of assembly product work.
(2) Portable solid of revolution rotation resistance moment measurement system, integrated portable hardware structure, rapid survey software aim at realizing equipping the manufacturing in the solid of revolution (during bearing assembly) rotation resistance moment (bearing assembly friction moment) portable, rapid survey, provide the quantitative data foundation for equipping whole accurate debugging.
(3) Portable solid of revolution rotation resistance moment measurement system, have simple structure, carry and convenient operation's characteristics, can use anytime and anywhere, improved the solid of revolution rotation resistance moment measuring convenience.
Another objective of the present invention is to provide a measuring method for a portable revolving body rotation resistance moment measuring system to solve the problem that the revolving body rotation resistance moment (the friction moment of the bearing assembly) cannot be quantitatively detected in the bearing equipment production process.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
a measuring method of a portable revolving body rotation resistance moment measuring system comprises the following steps:
the method specifically comprises the following steps:
adsorbing two collision blocks on the excircle of the revolving body, wherein the centers of the two collision blocks are positioned on the same section of the revolving body and are separated by 180 degrees in the circumferential direction;
pasting a line distance belt on the excircle of the revolving body for a circle; arranging a measuring module to enable the measuring head to be aligned with the line distance belt;
respectively connecting a trigger of the starting module and a measuring head of the detection module to the host module through signals;
opening a host module switch, starting a measurement program, and inputting initial parameters of the tested rotator;
pulling a wrench on the wrench to a corresponding gear, pushing the impact rod, ensuring that the tail of the impact rod is tightly attached to the front end of the energy storage spring, and completing manual energy storage;
aligning the striking rod with the striking block and keeping the striking rod vertical, and simultaneously keeping the distance from the head of the striking rod to the striking block to be larger than the compression amount of the spring;
the launching mechanism pushes the wrench out of a gear, the energy storage spring in a compressed state is released, the energy storage spring pushes the impact rod out, the impact rod breaks away from the attraction force of the magnet under the inertia effect, the impact rod is separated from the energy storage spring and collides with the impact block, the impact block drives the revolving body to rotate, and the energy storage spring extends to a free state; meanwhile, when the impact bar is ejected, a trigger fixed on the shell is triggered, and a signal is sent to the host module;
after receiving the signal of the trigger, the host module sends a detection signal to the detection module and starts timing, and the measuring head starts detecting the line distance mark and counting;
stopping timing after a measurement program in the host module detects that the rotation of the revolving body stops;
the measuring program in the host module calculates the rotation resistance moment of the tested revolving body and displays all parameters and calculation results on a screen to finish measurement.
Further, the specific steps of the measurement procedure are as follows:
after the test device is started, firstly entering a parameter setting interface, and finishing parameter setting required by the test by a user, wherein the parameter setting comprises the diameter of a tested swivel body, the diameter of a side head measuring position, the distance of a wire distance belt grid, a spring compression gear and a storage value; after the completion, the measurement program scans the trigger signal in real time;
receiving a signal sent by a trigger, sending a signal to a detection module by a measurement program, starting timing, and recording a line distance belt rotation angle sent by a measuring head in the detection module as revolving body revolution data;
the measuring program calculates revolution data and used time of the revolution body in real time, and when the revolution data of the revolution body is unchanged for more than 3 seconds, counting and timing are stopped and the data are stored;
starting a rotation resistance moment calculation formula, calculating the rotation resistance moment of the tested rotator according to the set parameters, the rotation data of the rotator and the time,
and finally, displaying the calculation result, the set parameters, the number of turns and all the time on a screen in a classified manner.
Further, the specific derivation process of the turning resistance moment calculation formula is as follows:
energy storage of energy storage spring EBulletIs calculated by the formula
Wherein X represents the spring compression distance and K represents the spring rate;
energy storage of energy storage spring EBulletKinetic energy of translation with ram EFlat plateIn a manner of conversion between EBullet＝EFlat plateTo do so
Wherein m represents the mass of the plunger, and v represents the linear velocity of the plunger when the spring reaches the free length;
during impact, the energy between the striking rod and the tested swivel body is converted into EFlat plate＝ERotating shaft(ii) a Namely, it is
Wherein ERotating shaftThe rotation kinetic energy of the detected rotary body after impact, I is the rotation inertia of the detected rotary body, and omega is the angular velocity of the detected rotary body;
when the revolving body stops gradually, the measuring and calculating formula of the rotating resistance moment is concretely,
where M is the torque of rotation, ERotating shaftIs the rotation kinetic energy of the detected rotary body, and n is the rotation number of the detected rotary body;
the formula is arranged as a formula:
the measuring method of the portable revolving body rotation resisting moment measuring system has the same advantages as the portable revolving body rotation resisting moment measuring system compared with the prior art, and the detailed description is omitted.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural view of a portable revolving body rotation resistance moment measuring system according to an embodiment of the present invention;
fig. 2 is an exploded view of a starting module according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a housing according to an embodiment of the present invention;
fig. 4 is a schematic structural view of an energy storage spring and a wrench according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a striker according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a detection module according to an embodiment of the present invention;
fig. 7 is a flowchart of a measurement procedure in the method for measuring rotational resistance torque of a portable revolving body according to an embodiment of the present invention.
Description of reference numerals:
1-starting a module; 11-a housing; 111-card slot; 112-gear; 113-a firing mechanism; 12-an energy storage spring; 121-a magnet; 13-a wrench; 14-a flip-flop; 15-a ram; 151-ring clamp; 152-a head; 16-a snap ring; 17-a bump; 2-a detection module; 21-a measuring head; 22-position adjustment means; 23-a magnetic base; 24-pitch band; 3-host module.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
A portable revolving body rotation resistance moment measuring system is shown in figures 1 to 7 and comprises a starting module 1, a detection module 2 and a host module 3, wherein the starting module 1 and the detection module 2 are respectively connected to the host module 3 through signals.
The starting module 1 comprises a shell 11, an energy storage spring 12, a wrench 13, a trigger 14, a striking rod 15, a clamping ring 16 and a striking block 17, wherein the striking block 17 is fixed on the excircle of a tested revolving body, the shell 11 is of a shell structure of a pistol, a clamping groove 111 is formed in the shell 11, a plurality of gears 112 are uniformly distributed on the clamping groove 111, a launching mechanism 113 is of a trigger structure of the pistol, the launching mechanism 113, the energy storage spring 12 and the striking rod 15 are sequentially arranged in the shell 11 from the side direction of a handle to the outside, the trigger 14 is arranged outside the shell 11, and the trigger 14 is connected to the host module 3 through signals; a wrench 13 is arranged at the outer end of the energy storage spring 12, the wrench 13 moves along the clamping groove 111 and can be clamped with each gear 112 to realize energy storage of the energy storage spring 12; a magnet 121 is arranged at the foremost end of the energy storage spring 12, and the magnetic force value of the magnet 121 is not less than the gravity of the striker 15; when the energy storage spring 12 is not launched, the magnet 121 attracts the impact rod 15 to the head of the energy storage spring 12, so that when the handheld starting module 1 is prevented from being turned down, the impact rod 15 is separated from the energy storage spring 12 due to self weight, meanwhile, the attraction force of the magnet 121 is not large, when the energy storage spring 12 releases energy to a free length, the wrench 13 is blocked by the clamping groove 111, the wrench 13 fixed to the head of the energy storage spring 12 also fixes the spring to the free length and does not extend any more, and the impact rod 15 influenced by inertia can be easily separated from the attraction force of the magnet 121 and collides against the impact block 17; the snap ring 16 is fixedly arranged at the foremost end in the cylinder of the shell 11, the inner diameter of the snap ring 16 is larger than the diameter of the striker 15 but smaller than the outer diameter of the annular clamp 151, and when the annular clamp 151 at the tail part of the striker 15 contacts the snap ring 16, the snap ring 16 blocks the striker to ensure that the striker is not separated from the shell 11.
The trigger 14 is a device for converting the physical quantity to be measured into an electric signal, and is realized by adopting an electromagnetic sensor, namely, the striker is pushed by a released compression spring and quickly passes through the front of the electromagnetic sensor when being quickly ejected; the electromagnetic sensor generates a current pulse signal by utilizing the electromagnetic induction principle.
The detection module 2 comprises a measuring head 21, a position adjusting device 22, a magnetic base 23, a data line 24 and a line distance belt 25, wherein the line distance belt 25 is a white bottom, black strip-shaped narrow lattices with specific intervals are drawn on the line distance belt and fixed on the outer circle of the revolving body, the bottom of the magnetic base 23 is detachably arranged on a fixed device of the revolving body to be measured, the upper part of the magnetic base is connected to the measuring head 21 through the position adjusting device 22, the measuring head 21 is aligned with the line distance belt 25, and the side head 21 is connected to the host module 3 through the data line.
The magnetic base 23 is attached to the fixing device of the tested swivel body.
The cross section of the position adjusting device 22 is of a U-shaped structure and comprises a first rod, a second rod and a third rod, one end of the first rod is fixedly connected to the magnetic base 23, the other end of the first rod is fixedly connected to the first end of the second rod, the second end of the second rod is hinged to the first end of the third rod, and the second end of the third rod is fixedly connected to the measuring head 21.
The pitch tape 25 is stuck or wound one turn on the outer circle of the rotor.
The collision block 17 is used for being adsorbed on the excircle of the tested revolving body.
The striking rod 15 is of an integral structure, the tail part of the striking rod 15 is provided with an annular clamping head 151, the outer diameter of the annular clamping head 151 is larger than the inner diameter of the clamping ring 16, and the striking rod 15 after collision is clamped in the shell 11 and does not fall off; the head 152 of the striker 15 has a spherical structure, and when the head 152 collides with the detected revolving body, the striker 151 is prevented from deviating when colliding with the revolving body.
When the energy storage spring 12 is in the free length, the front end of the energy storage spring is just positioned at the outermost end of the clamping groove 111; the number of the gears 112 arranged on the clamping groove 111 is 3, the wrench 13 can be fixed on a certain gear 112, the spring is compressed to a corresponding length, energy storage of three gears from small to large is achieved, and therefore measurement of rotary bodies with different sizes of rotational inertia is adapted.
The distance between the front end of the impact rod 15 and the impact block 17 is larger than the compression amount of the energy storage spring 12;
the energy storage spring 12 adopts a high-strength spring as an energy storage component, and the distance X and the rigidity K are compressed by the spring by using a formula
The energy storage value E of the energy storage spring 12 can be calculatedBullet。
The firing mechanism 113 of the starting module 1, the stored energy spring 12 are housed in the system housing 11. The firing mechanism 113 is configured to resemble the trigger of a pistol and is not described in detail herein; in operation, the firing mechanism 113 releases the stored energy spring 12 in a compressed state to push the wrench 13 out of the shift position 112.
A measuring method of a portable revolving body rotation resistance moment measuring system comprises the following steps:
1. pasting a line distance belt 24 for one circle at a proper position of the excircle of the revolving body; the measuring head 21, the position adjusting device 22 and the magnetic base 23 are connected, and the magnetic base 23 is attracted to the fixing device near the tested rotator through the magnetism of the magnetic base 23; adjusting the position adjusting device 22 so that the measuring head 21 is aligned with the line pitch belt 25;
2. the trigger 14 of the starting module 1 and the measuring head 21 of the detection module 2 are respectively connected with the host module 3 through data lines in a signal mode;
3. opening a switch of a host module 3, starting a measuring program, inputting the diameter of a revolving body at a collision block, the diameter of a revolving body at a line distance zone and selecting initial parameters of the energy storage size in a corresponding window;
4. two collision blocks 17 are adsorbed on the excircle of the revolving body, the centers of the two collision blocks are positioned on the same section of the revolving body, and the two collision blocks are separated by 180 degrees in the circumferential direction so as to eliminate the influence of asymmetry of the collision blocks 17 on the rotational inertia of the revolving body and rotate the revolving body, so that the two collision blocks 17 are positioned at the vertical position; meanwhile, the distance from the head of the striker 15 to the striker 17 is kept to be larger than the compression length of the spring;
5. pulling the wrench 13 to a corresponding gear 112 according to the energy storage size input in the step 3, and pushing the wrench 13 into the gear 112; pushing the impact bar 15, and checking whether the tail part of the impact bar 15 is tightly attached to the front end of the energy storage spring 12 or not to finish manual energy storage;
6. the right hand holds the shell 11 of the starting module 1, the front end of the striker 15 is aligned to the striker 17 at the upper end of the revolving body, and the axis of the striker 15 is ensured to be vertical to the collision surface of the selected striker 17;
7. the wrench 13 is pushed out of the gear 112 by the launching mechanism 113, the energy storage spring 12 in a compressed state is released by the launching mechanism 113, and the energy storage spring 12 releases energy until the free length is blocked by the clamping groove 111; the striking rod 15 can strike the striking block 17 after obtaining energy, and the striking rod 15 is left in the shell 11; the collision block 17 drives the revolving body to rotate after gaining energy; at the moment, the impact rod 15 triggers a trigger arranged on the starting module 1, and a triggering signal is transmitted to the host module 3 to finish the measurement starting; under the action of the resisting moment, the revolving body stops after rotating for a plurality of circles, and the detection module 3 detects the number of black transverse grids actually rotated by the revolving body and transmits data to the host module 3;
8. after detecting the trigger signal, the measurement program in the host module 3 starts a timer, sends a detection signal to the detection module 2 and starts to detect the numerical value change of the line distance counter; if the numerical value of the line distance counter stops changing for more than 3 seconds, the measuring program stops the timer and sends a signal for stopping counting to the detecting module 2; the measuring program stores the counter and the timer value at the moment;
9. and (3) calculating the resistance moment of the revolving body in a background of a measuring program in the host module 3, and displaying a calculation result and the initial parameters input in the step (3) on a display together to finish the measurement of the resistance moment of the revolving body in one-time rotation.
The derivation process of the measurement program using the formula is as follows:
1. energy storage of energy storage spring EBulletIs calculated by the formula
Where X represents the spring compression distance and K represents the spring rate.
2. Energy storage of energy storage spring EBulletKinetic energy of translation with ram EFlat plateIn a manner of conversion between EBullet＝EFlat plate；
Where m represents the ram mass and v represents the linear ram velocity at which the spring reaches the free length.
3. During impact, the energy between the striking rod and the tested swivel body is converted into EFlat plate＝ERotating shaft(ii) a Namely, it is
ERotating shaftThe rotational kinetic energy of the detected revolving body after impact, I is the rotational inertia of the detected revolving body, and ω is the angular velocity of the detected revolving body.
4. When the revolving body stops gradually, the measuring and calculating formula of the rotating resistance moment is concretely,
where M is the torque of rotation, ERotating shaftIs the rotary kinetic energy of the tested rotary body, n is the number of turns of the tested rotary body, not necessarily an integer, such as: 25.3Middle 0.3 represents 0.3 turns.
5. The formula is arranged as a formula:
the above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a portable solid of revolution resistance moment measurement system which characterized in that: the gun rotating device comprises a starting module, a detection module and a host module, wherein the starting module comprises a shell and a collision block, the collision block is used for being installed on the excircle of a detected rotating body, the shell is of a shell structure of a gun, a clamping groove is formed in the shell, a plurality of gears are uniformly distributed on the clamping groove, a transmitting mechanism, an energy storage spring and a collision rod are sequentially installed in the shell from the side direction of a handle to the outside, a trigger is installed outside the shell, and the trigger is connected to the host module through signals; a wrench is arranged at the outer end of the energy storage spring, the wrench moves along the clamping groove and can be clamped with each gear, a magnet for adsorbing the impact bar is arranged at the foremost end of the energy storage spring, a clamping ring is fixedly arranged at the foremost end of the shell cylinder, and the clamping ring is sleeved with the impact bar; the detection module comprises a measuring head, a position adjusting device, a magnetic base and a line distance belt, wherein a fixed grid is arranged on the line distance belt and is fixed on the excircle of the rotator, the bottom of the magnetic base is detachably mounted on the fixed device of the rotator to be measured, the upper part of the magnetic base is connected to the measuring head through the position adjusting device, the measuring head is aligned to the line distance belt, and the side head is connected to the host module through signals.
2. A portable revolving body rotation resistance torque measurement system according to claim 1, wherein: the distance between the front end of the striking rod and the striking block is larger than the compression amount of the energy storage spring and smaller than the length of the striking rod.
3. A portable revolving body rotation resistance torque measurement system according to claim 1, wherein: the tail part of the striking rod is provided with an annular clamping head, the outer diameter of the annular clamping head is larger than the inner diameter of the clamping ring, and the head part of the striking rod is of a spherical structure.
4. A portable revolving body rotation resistance torque measurement system according to claim 1, wherein: the cross section of the position adjusting device is of a U-shaped structure and comprises a first rod, a second rod and a third rod, one end of the first rod is fixedly connected to the magnetic base, the other end of the first rod is fixedly connected to the first end of the second rod, the second end of the second rod is hinged to the first end of the third rod, and the second end of the third rod is fixedly connected to the measuring head.
5. A portable revolving body rotation resistance torque measurement system according to claim 1, wherein: the line distance belt is pasted or wound on the outer circle of the rotary body for one circle.
6. A portable revolving body rotation resistance torque measurement system according to claim 1, wherein: the two collision blocks are adsorbed on the excircle of the revolving body, and the centers of the two collision blocks are positioned on the same section of the revolving body and are separated by 180 degrees in the circumferential direction.
7. A portable revolving body rotation resistance torque measurement system according to claim 1, wherein: the magnetic force value of the magnet is not less than the gravity of the striker.
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| CN201921836133.7U CN210719495U (en) | 2019-10-29 | 2019-10-29 | Portable revolving body rotation resistance moment measuring system |
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| CN201921836133.7U CN210719495U (en) | 2019-10-29 | 2019-10-29 | Portable revolving body rotation resistance moment measuring system |
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| CN210719495U true CN210719495U (en) | 2020-06-09 |
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xingtai Green Vine Environmental Protection Technology Co.,Ltd. Assignor: XINGTAI POLYTECHNIC College Contract record no.: X2023980038146 Denomination of utility model: A portable measurement system for rotational resistance torque of rotating objects Granted publication date: 20200609 License type: Common License Record date: 20230717 |