CN109765001B - Torque calibration system and method of rotational speed and torque sensor - Google Patents
Torque calibration system and method of rotational speed and torque sensor Download PDFInfo
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Abstract
The invention discloses a torque calibration system of a rotating speed torque sensor and a calibration method thereof, wherein the torque calibration system comprises a base, a guide rail fixedly arranged on the upper surface of the base, and a fixing mechanism, a loading mechanism and a lifting mechanism which transversely move along the guide rail; the sensor to be calibrated is fixedly arranged at the top of the lifting mechanism, one end of the sensor to be calibrated is connected with the fixing mechanism, and the other end of the sensor to be calibrated is connected with the loading mechanism. The calibration system of the rotating speed torque sensor comprises a base, a fixing mechanism, a loading mechanism, a lifting mechanism and the like, wherein the fixing mechanism, the loading mechanism and the lifting mechanism are arranged on the base, the height of the rotating speed torque sensor arranged at the top of the calibration system can be adjusted through the lifting mechanism, and meanwhile, the fixing mechanism, the loading mechanism and the lifting mechanism can translate along a guide rail on the base, so that the positions among the rotating speed torque sensor, the fixing mechanism and the loading mechanism can be adjusted conveniently.
Description
Technical Field
The invention relates to the technical field of rotational speed and torque sensors, in particular to a torque calibration system and a torque calibration method of a rotational speed and torque sensor.
Background
The rotating speed and torque sensor needs to be calibrated regularly, when the torque calibration of the rotating speed and torque sensor is carried out at present, the rotating speed and torque sensor needs to be removed from a transmission chain of equipment, then couplings arranged at two ends of the rotating speed and torque sensor are removed, then a proper shaft sleeve tool is selected according to the diameter of a shaft head of the rotating speed and torque sensor, the shaft sleeve tool is arranged on the shaft head of the rotating speed and torque sensor to be calibrated, and finally the whole rotating speed and torque sensor assembly is arranged on a torque calibration device to calibrate the torque. After the calibration is finished, the calibration connection tool on the rotating speed and torque sensor is removed, then the coupler is reinstalled on the calibrated rotating speed and torque sensor, and finally the recovery of the equipment transmission chain is completed.
This approach has the following disadvantages:
(1) Before the rotation speed torque sensor is calibrated, the rotation speed torque sensor needs to be removed from the equipment transmission chain, then the coupler is removed, the shaft head of the rotation speed torque sensor is provided with a connecting shaft sleeve tool for calibration, after calibration, the connecting shaft sleeve tool for calibration is removed, the installation of the coupler is restored, the operation is complex and tedious, and the labor workload is high.
(2) The shaft couplings arranged on the shaft heads at the two ends of the rotating speed torque sensor often need to be separated by means of tools such as a puller, and the like, so that the disassembling difficulty and the workload are high.
(3) By means of the tool, the coupler is disassembled and assembled, external force is applied to the rotating speed and torque sensor to be calibrated, and the sensor is damaged.
Disclosure of Invention
The invention aims to provide a torque calibration system and a torque calibration method of a rotating speed torque sensor, which are used for solving the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
The torque calibration system of the rotational speed and torque sensor comprises a base, a guide rail fixedly arranged on the upper surface of the base,
The fixing mechanism, the loading mechanism and the lifting mechanism transversely move along the guide rail;
the sensor to be calibrated is fixedly arranged at the top of the lifting mechanism, one end of the sensor to be calibrated is connected with the fixing mechanism, and the other end of the sensor to be calibrated is connected with the loading mechanism.
The torque calibration system of the rotating speed torque sensor comprises a base, a fixing mechanism, a loading mechanism, a lifting mechanism and the like, wherein the fixing mechanism, the loading mechanism and the lifting mechanism move horizontally along a guide rail on the base, when the torque calibration system is used, the rotating speed torque sensor is fixedly installed at the top of the lifting mechanism, the fixing mechanism, the loading mechanism and the lifting mechanism move along the guide rail on the upper part of the base, two ends of the rotating speed torque sensor installed at the top of the lifting mechanism are respectively positioned at the same horizontal height with a first chuck of the fixing mechanism and a second chuck of the loading mechanism, one end of the rotating speed torque sensor is connected with the first chuck of the fixing mechanism, and the other end of the rotating speed torque sensor is connected with the second chuck of the loading mechanism, so that rapid assembly of the rotating speed torque sensor in the torque calibration system is realized.
When the device is used, one end of the rotating speed torque sensor is loaded through the loading mechanism, torque application to the rotating speed torque sensor is achieved, the device is simple and stable in structure, operation is rapid and simple, the rotating speed torque sensor is fixedly mounted at the top of the lifting mechanism, adjustment of the height of the rotating speed torque sensor can be achieved, meanwhile, the lifting mechanism, the fixing mechanism and the loading mechanism are slidably mounted on the guide rail arranged on the upper portion of the base, connection relation between the rotating speed torque sensor and the fixing mechanism and connection relation between the rotating speed torque sensor and the loading mechanism are convenient to adjust, assembly and calibration operation of the rotating speed torque sensor are further simplified, and popularization and use are facilitated.
As a further scheme of the invention: the guide rails are parallel to each other and are provided with more than one guide rail, and the section of each guide rail is of a T-shaped structure.
As a further scheme of the invention: the fixing mechanism comprises a fixing support and a first chuck;
The bottom end of the fixed support is connected with the guide rail through a fixed sliding block;
the first chuck is fixedly arranged on the upper part of the fixed support close to one side surface of the rotating speed torque sensor to be calibrated.
As a further scheme of the invention: the loading mechanism comprises a bearing seat, a loading shaft transversely penetrating through the upper part of the bearing seat and a rocker arm device arranged at one end of the loading shaft;
the bearing seat is a three-dimensional double-layer bearing seat, and the bottom end of the bearing seat is connected with the guide rail through a loading slide block;
the two ends of the loading shaft extend out of the bearing seat, and one end of the loading shaft is provided with a second chuck through a flange, and the other end of the loading shaft is fixedly connected with the rocker arm device.
As a further scheme of the invention: the second chuck and the first chuck are positioned at the same horizontal height;
The first chuck and the second chuck are matched for use, and the first chuck and the second chuck are adjustable chucks.
As a further scheme of the invention: the rocker arm device comprises a loading rocker arm and a suspender arranged at one end of the loading rocker arm;
The loading rocker arm is provided with a series of through holes along the transverse central line, and the loading rocker arm is detachably connected with the top of the suspender through a rotating shaft arranged in the through holes;
the bottom of the suspender is provided with a tray for placing weights.
As a further scheme of the invention: the loading rocker arm is of a symmetrical structure with the middle width gradually narrowing towards two ends, and the diameter of a through hole from the transverse middle position of the loading rocker arm to the transverse two ends of the loading rocker arm gradually decreases.
As a further scheme of the invention: the lifting mechanism comprises a lifting bracket, a lifter arranged on the lifting bracket and a bedplate which moves up and down along the two guide posts under the drive of the lifter;
the lifter is a screw lifter, and two ends of an output shaft of the lifter are respectively provided with a hand wheel
The invention also provides the following technical scheme:
a calibration method of a torque calibration system of a rotational speed and torque sensor comprises the following steps:
(1) The method comprises the steps that a rotating speed and torque sensor to be calibrated is arranged on the top of a lifting mechanism, one end of the rotating speed and torque sensor to be calibrated is connected with a first chuck of a fixing mechanism, and the other end of the rotating speed and torque sensor to be calibrated is connected with a second chuck of a loading mechanism;
(2) The top of the suspender is connected with the loading rocker arm through a rotating shaft arranged in a through hole, and the distance between the vertical line of the suspender and the vertical line passing through the center of the loading shaft in the same plane is recorded as L 1 m;
n weights with the mass of m 1 kg are placed on a tray at the bottom of the suspender, and the applied torque is recorded as T 1 Niumi;
(3) The torque measured by the rotating speed and torque sensor to be calibrated and displayed on a display screen is recorded as T 0 Niumi;
(4) The applied torque T 1 is compared with the torque T 0 displayed by the rotational speed torque sensor to be calibrated,
When the T 1 and the T 0 are within the allowable error range, the rotating speed and torque sensor to be calibrated can be used;
When the errors of T 1 and T 0 are beyond the allowable range, the rotating speed and torque sensor to be calibrated is not available.
When the device is specifically used, the rotating speed torque sensor is fixedly arranged at the top of the lifting mechanism, the position relation between the two ends of the rotating speed torque sensor and the fixing mechanism and the loading mechanism is adjusted, and the two ends of the rotating speed torque sensor are respectively connected with the fixing mechanism and the loading mechanism.
When demarcating, the jib top of rocking arm device links to each other with the loading rocking arm through the pivot of dress in loading rocking arm through-hole, and the jib is close to one end department with the loading rocking arm and links to each other to set up the tray that is used for placing the weight in the bottom of jib, realize loading rocking arm and rotate certain angle around the loading axle through placing the weight on the tray, and then realize applying the moment of torsion of rotational speed torque sensor one end, whole simple structure, convenient operation.
When the device is specifically calibrated, the second chuck of the loading mechanism is connected with one end of the rotating speed torque sensor, N weights with the mass of m 1 are placed on the tray of the loading mechanism, so that the loading rocker arm rotates around the loading shaft by a certain angle under the action of the weights, and then a certain torque is applied to the rotating speed torque sensor. After a certain torque is applied to the rotating speed torque sensor, on one hand, the rotating speed torque sensor can display the received torque on a display screen and record the torque as torque T 0, and on the other hand, the torque T 1 applied by the weight is calculated by measuring the distance between the vertical line of the boom and the vertical line of the center of the loading shaft in the same plane and recording the distance as L 1 meters. Finally, comparing the torque T 1 with the torque T 0, and when the torque T 1 and the torque T 0 are within the allowable error range, indicating that the phase difference between the torque T 0 measured and displayed by the to-be-calibrated rotational speed torque sensor and the torque T 1 actually applied is small, namely the to-be-calibrated rotational speed torque sensor can be used; when the errors of T 1 and T 0 are beyond the allowable range, the fact that the torque T 0 measured and displayed by the to-be-calibrated rotational speed torque sensor is different from the actually applied torque T 1 is large is indicated, namely the to-be-calibrated rotational speed torque sensor is not available.
As a further scheme of the invention: in the step (1), the lifting mechanism lifts the rotational speed torque sensor to be calibrated to a position with two ends equal to the first chuck of the fixing mechanism and the second chuck of the loading mechanism respectively, and then the fixing mechanism, the lifting mechanism and the loading mechanism move on the same straight line along the guide rail, so that one end of the rotational speed torque sensor is connected with the fixing mechanism, and the other end of the rotational speed torque sensor is connected with the loading mechanism.
Compared with the prior art, the invention has the beneficial effects that:
(1) The calibration system of the rotating speed torque sensor comprises a base, a fixing mechanism, a loading mechanism, a lifting mechanism and the like, wherein the fixing mechanism, the loading mechanism and the lifting mechanism are arranged on the base, the height of the rotating speed torque sensor arranged at the top of the calibration system can be adjusted through the lifting mechanism, and meanwhile, the fixing mechanism, the loading mechanism and the lifting mechanism can translate along a guide rail on the base, so that the positions between the rotating speed torque sensor and the fixing mechanism and between the rotating speed torque sensor and the loading mechanism can be adjusted conveniently;
(2) One end of the rotating speed torque sensor is connected with a first chuck of the fixing mechanism, the other end of the rotating speed torque sensor is connected with a second chuck of the loading mechanism, in the calibration process, one end of the rotating speed torque sensor is fixed through the fixing mechanism, torque is applied to the other end of the rotating speed torque sensor through the loading mechanism, and the calibration operation is simple; in addition, torque calibration is performed by increasing or decreasing weights, so that the possibility of damage to the sensor is greatly reduced;
(3) Before the rotation speed torque sensor is calibrated, a coupler on the sensor is not required to be removed, a connecting shaft sleeve is not required to be installed, and meanwhile, after the rotation speed torque sensor is calibrated, the connecting shaft sleeve is not required to be removed, the coupler is not required to be installed, so that the calibration workload of the rotation speed torque sensor is reduced to a great extent, and the calibration efficiency is improved;
(4) In the calibration process, the problems of accuracy and the like of the rotating speed torque sensor are judged by comparing the torque measured by the rotating speed torque sensor with the torque actually applied and obtained through calculation, and the judgment is quick and convenient and the judgment result is accurate; and the rotational speed torque sensor does not need to carry out the installation and the dismantling operation of parts, avoids the damage to the sensor in the process of assembly and disassembly, and ensures the reliability and the safety of the use of the rotational speed torque sensor.
Drawings
FIG. 1 is a perspective view of a calibration system of the present invention without a rotational speed and torque sensor;
FIG. 2 is a front view of the calibration system of the present invention without a rotational speed and torque sensor installed;
FIG. 3 is a side view of the calibration system of the present invention without a rotational speed and torque sensor installed;
FIG. 4 is a perspective view of the lifting mechanism of the present invention;
FIG. 5 is a perspective view of the calibration system of the present invention with a rotational speed and torque sensor.
In the figure:
1-a base and 11-a guide rail;
2-fixing mechanism, 21-fixing support and 22-first chuck;
3-loading mechanism, 31-bearing seat, 32-loading shaft, 33-rocker arm device, 331-loading rocker arm, 332-suspender, 333-tray, 34-second chuck, 301-through hole, 302-weight;
4-lifting mechanisms, 41-lifting brackets, 42-lifters, 43-bedplate and 44-handwheels;
5-a rotational speed torque sensor.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-3, a torque calibration system of a rotational speed and torque sensor comprises a base 1, a guide rail 11 fixedly arranged on the upper surface of the base 1, a fixing mechanism 2, a loading mechanism 3 and a lifting mechanism 4, wherein the fixing mechanism 2, the loading mechanism 3 and the lifting mechanism 4 transversely move along the guide rail 11; the sensor to be calibrated is fixedly arranged at the top of the lifting mechanism 4, one end of the sensor to be calibrated is connected with the fixing mechanism 2, and the other end of the sensor to be calibrated is connected with the loading mechanism 3.
The torque calibration system of the whole rotating speed torque sensor is simple in structure, one end of the rotating speed torque sensor 5 is connected with the fixing mechanism 2, the other end of the rotating speed torque sensor is connected with the loading mechanism 3, torque is applied to one end of the rotating speed torque sensor 5 through the loading mechanism 3 at one end, the other end of the rotating speed torque sensor 5 is fixed through the fixing mechanism 2 at the other end, and therefore the whole layout of the torque calibration system is reasonable and easy and convenient to operate.
The guide rails 11 are parallel to each other and are provided with more than one guide rail, and the section of each guide rail 11 is of a T-shaped structure.
The guide rail 11 is arranged to be of a T-shaped cross section, the fixed support 21 of the fixed mechanism 2 is arranged on the guide rail 11 through the fixed sliding block matched with the fixed support 21, the bearing seat 31 of the loading mechanism 3 is arranged on the guide rail 11 through the loading sliding block matched with the fixed support 31, the lifting support 41 of the lifting mechanism 4 is arranged on the guide rail 11 through the translation sliding block matched with the lifting mechanism, so that the stable translation of the fixed mechanism 2, the loading mechanism 3 and the lifting mechanism 4 along the guide rail 11 is realized, and the translation stability of the fixed mechanism 2, the loading mechanism 3 and the lifting mechanism 4 is improved.
The fixing mechanism 2 comprises a fixing support 21 and a first chuck 22; the bottom end of the fixed support 21 is connected with the guide rail 11 through a fixed sliding block; the first chuck 22 is fixedly arranged on the upper part of the fixed support 21, which is close to one side surface of the rotation speed and torque sensor 5 to be calibrated.
The loading mechanism 3 comprises a bearing seat 31, a loading shaft 32 transversely penetrating through the upper part of the bearing seat 31, and a rocker arm device 33 arranged at one end of the loading shaft 32; the bearing seat 31 is a three-dimensional double-layer support, and the bottom end of the bearing seat 31 is connected with the guide rail 11 through a loading slide block; both ends of the loading shaft 32 extend out of the bearing seat 31, and one end of the loading shaft 32 is provided with a second chuck 34 through a flange, and the other end is fixedly connected with the rocker arm device 33.
The second chuck 34 is at the same level as the first chuck 22; the first chuck 22 and the second chuck 34 are used cooperatively, and the first chuck 22 and the second chuck 34 are adjustable chucks.
One end of the rotating speed torque sensor 5 is connected with the first chuck 22, the other end of the rotating speed torque sensor 5 is connected with the second chuck 34, the inner diameters of the first chuck 22 and the second chuck 34 are adjustable, the two ends of the rotating speed torque sensor 5 can be clamped conveniently, and the assembly efficiency of the rotating speed torque sensor 5 on a calibration system is improved.
The rocker arm device 33 comprises a loading rocker arm 331 and a suspension rod 332 arranged at one end of the loading rocker arm 331; the loading rocker 331 is provided with a series of through holes 301 along a transverse center line, and the loading rocker 331 is detachably connected with the top of the boom 332 through a rotating shaft arranged in the through holes 301; the bottom of the hanger rod 332 is provided with a tray 333 for placing the weight 302.
The loading arm 331 has a symmetrical structure with a wider middle and gradually narrowing toward two ends, and the diameter of the through hole 301 from the middle position of the loading arm 331 to the two ends of the loading arm 331 is gradually reduced.
By arranging the loading rocker 331 to have a symmetrical structure with a wide middle and gradually narrowed toward two ends, when the boom 332 is mounted on the loading rocker 331, the weight 302 placed on the tray 333 at the bottom of the boom 332 can apply torque to the rotational speed torque sensor 5, and when the weight 302 is not placed on the tray 333 at the bottom of the boom 332, the loading rocker 331 with a symmetrical structure can be in a horizontal balance state, so that the balance of two ends of the rotational speed torque sensor 5 can be maintained when no torque is applied.
In addition, a series of through holes 301 are formed on the loading rocker 331 along the transverse center line, on one hand, the installation of the boom 332 is realized by installing the rotating shaft in the through holes 301, and meanwhile, through continuously forming a plurality of through holes 301 on the same horizontal line on the loading rocker 331, the through holes 301 at corresponding positions can be selected according to different calibration conditions, so that the application range of the loading mechanism 3 is wider; on the other hand, through the through hole 301 arranged on the transverse central line of the loading rocker arm 331, the weight of the whole loading rocker arm 331 can be reduced to a certain extent, materials are saved, according to the structural characteristics that the middle of the loading rocker arm 331 is wide and the diameters of the through holes 301 arranged at the middle position of the loading rocker arm 331 are gradually narrowed towards the two ends, the diameters of the through holes 301 arranged at the two ends of the loading rocker arm 331 are gradually reduced, the weight of the loading rocker arm 331 is reduced to the greatest extent, the material cost is saved, and the overall manufacturing cost of the calibrating system of the rotating speed torque sensor 5 is reduced.
Referring to fig. 4, the lifting mechanism 4 includes a lifting bracket 41, a lifter 42 mounted on the lifting bracket 41, and a platen 43 driven by the lifter 42 to move up and down along the two guide posts; the lifter 42 is a screw lifter 42, and two ends of an output shaft of the lifter 42 are respectively provided with a hand wheel 44.
The bottom of a lifting bracket 41 of the lifting mechanism 4 is connected with a guide rail 11 on the base 1 through a translation sliding block, and the translation sliding block is matched with the T-shaped guide rail 11 for use, so that the lifting mechanism 4 can stably move along the guide rail 11; two hand wheels 44 are respectively arranged at two ends of the output shaft of the lifter 42, when the elevator is in use, by manually rotating any hand wheel 44, the power transmission inside the lifter 42 is realized through a bevel gear and other structures, and finally the height adjustment of the lifter 42 is realized. The lead screw lifter 42 adopted by the lifting mechanism 4 is a commercial product, the height of the bedplate 43 can be adjusted through the lead screw lifter 42, the lifter 42 moves up and down along the guide posts symmetrically arranged during lifting operation, and the stability of lifting or descending of the bedplate 43 can be effectively improved through the two guide posts symmetrically arranged.
Referring to fig. 5, a calibration method of a torque calibration system of a rotational speed and torque sensor includes the following steps:
(1) The method comprises the steps that a rotating speed and torque sensor to be calibrated is arranged on the top of a lifting mechanism, one end of the rotating speed and torque sensor to be calibrated is connected with a first chuck of a fixing mechanism, and the other end of the rotating speed and torque sensor to be calibrated is connected with a second chuck of a loading mechanism;
In the step (1), the lifting mechanism lifts the rotational speed torque sensor to be calibrated to a position with two ends equal to the first chuck of the fixing mechanism and the second chuck of the loading mechanism respectively, and then the fixing mechanism, the lifting mechanism and the loading mechanism move on the same straight line along the guide rail, so that one end of the rotational speed torque sensor is connected with the fixing mechanism, and the other end of the rotational speed torque sensor is connected with the loading mechanism.
When the calibration is carried out, the traditional rotating speed and torque sensor to be calibrated is fixedly arranged at the top of the lifting mechanism through connecting pieces such as screws and bolts, and one end of the rotating speed and torque sensor is connected with the first chuck of the fixing mechanism, and the other end of the rotating speed and torque sensor is connected with the second chuck of the loading mechanism by adjusting the position relation between the first chuck of the fixing mechanism and the second chuck of the loading mechanism.
(2) The top of the suspender is connected with the loading rocker arm through a rotating shaft arranged in a through hole, and the distance between the vertical line of the suspender and the vertical line passing through the center of the loading shaft in the same plane is recorded as L 1 m;
n weights with the mass of m 1 kg are placed on a tray at the bottom of the suspender, and the applied torque is recorded as T 1 Niumi;
(3) The torque measured by the rotating speed and torque sensor to be calibrated and displayed on a display screen is recorded as T 0 Niumi;
(4) The applied torque T 1 is compared with the torque T 0 displayed by the rotational speed torque sensor to be calibrated,
When the T 1 and the T 0 are within the allowable error range, the rotating speed and torque sensor to be calibrated can be used;
When the errors of T 1 and T 0 are beyond the allowable range, the rotating speed and torque sensor to be calibrated is not available.
On the one hand, weights placed on the tray exert a pulling force on the loading rocker arm, the pulling force being f=nm 1 g of cattle; the distance between the vertical line of the boom and the vertical line passing through the center of the loading shaft is the force arm of the pulling force of the boom, and the torque T 1 Niumi applied by N weights with the mass of m 1 kg to the rotating speed torque sensor, namely T 1＝Nm1g.L1 Niumi, can be calculated by measuring the distance between the vertical line of the boom and the vertical line passing through the center of the loading shaft in the same plane as L 1 m.
On the other hand, the rotational speed and torque sensor itself displays the sensed torque T 0 Niumi on its display screen. Finally, the calibration of the rotating speed and torque sensor can be realized by comparing the torque T 0 Niumi displayed by the rotating speed and torque sensor to be calibrated with the torque T 1 Niumi obtained through calculation.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (7)
1. The torque calibration system of the rotational speed torque sensor comprises a base (1), and is characterized in that: the torque calibration system also comprises a guide rail (11) fixedly arranged on the upper surface of the base (1),
And a fixing mechanism (2), a loading mechanism (3) and a lifting mechanism (4) which move transversely along the guide rail (11);
The sensor to be calibrated is fixedly arranged at the top of the lifting mechanism (4), one end of the sensor to be calibrated is connected with the fixing mechanism (2), and the other end of the sensor to be calibrated is connected with the loading mechanism (3);
the fixing mechanism (2) comprises a fixing support (21) and a first chuck (22);
the bottom end of the fixed support (21) is connected with the guide rail (11) through a fixed sliding block;
The first chuck (22) is fixedly arranged on the upper part of the fixed support (21) close to one side surface of the rotating speed and torque sensor (5) to be calibrated;
The loading mechanism (3) comprises a bearing seat (31), a loading shaft (32) transversely penetrating through the upper part of the bearing seat (31), and a rocker arm device (33) arranged at one end of the loading shaft (32);
the bearing seat (31) is a three-dimensional double-layer support, and the bottom end of the bearing seat (31) is connected with the guide rail (11) through a loading sliding block;
both ends of the loading shaft (32) extend out of the bearing seat (31), and one end of the loading shaft (32) is provided with a second chuck (34) through a flange, and the other end of the loading shaft is fixedly connected with the rocker arm device (33);
the second chuck (34) is at the same level as the first chuck (22);
The first chuck (22) and the second chuck (34) are matched for use, and the first chuck (22) and the second chuck (34) are adjustable chucks.
2. The torque calibration system of a rotational speed torque sensor of claim 1, wherein: the guide rails (11) are parallel to each other and are provided with more than one guide rail, and the section of each guide rail (11) is of a T-shaped structure.
3. The torque calibration system of a rotational speed torque sensor of claim 1, wherein: the rocker arm device (33) comprises a loading rocker arm (331) and a suspension rod (332) arranged at one end of the loading rocker arm (331);
the loading rocker arm (331) is provided with a series of through holes (301) along the transverse central line, and the loading rocker arm (331) is detachably connected with the top of the suspender (332) through a rotating shaft arranged in the through holes (301);
the bottom of the suspender (332) is provided with a tray (333) for placing weights (302).
4. A torque calibration system for a rotational speed torque sensor according to claim 3, wherein: the loading rocker arm (331) is of a symmetrical structure with a wide middle and gradually narrowing towards two ends, and the diameter of the through hole (301) from the transverse middle position of the loading rocker arm (331) to the transverse two ends of the loading rocker arm (331) gradually decreases.
5. The torque calibration system of a rotational speed torque sensor of claim 1, wherein: the lifting mechanism (4) comprises a lifting bracket (41), a lifter (42) arranged on the lifting bracket (41) and a bedplate (43) which moves up and down along the two guide posts under the drive of the lifter (42);
the lifter (42) is a screw lifter (42), and two ends of an output shaft of the lifter (42) are respectively provided with a hand wheel (44).
6. A method of calibrating a torque calibration system according to any of claims 1-5, comprising the steps of:
(1) The method comprises the steps that a rotating speed and torque sensor to be calibrated is arranged on the top of a lifting mechanism, one end of the rotating speed and torque sensor to be calibrated is connected with a first chuck of a fixing mechanism, and the other end of the rotating speed and torque sensor to be calibrated is connected with a second chuck of a loading mechanism;
(2) The top of the suspender is connected with the loading rocker arm through a rotating shaft arranged in a through hole, and the distance between the vertical line of the suspender and the vertical line passing through the center of the loading shaft in the same plane is recorded as L 1 m;
n weights with the mass of m 1 kg are placed on a tray at the bottom of the suspender, and the applied torque is recorded as T 1 Niumi;
(3) The torque measured by the rotating speed and torque sensor to be calibrated and displayed on a display screen is recorded as T 0 Niumi;
(4) The applied torque T 1 is compared with the torque T 0 displayed by the rotational speed torque sensor to be calibrated,
When the T 1 and the T 0 are within the allowable error range, the rotating speed and torque sensor to be calibrated can be used;
When the errors of T 1 and T 0 are beyond the allowable range, the rotating speed and torque sensor to be calibrated is not available.
7. The method of calibrating a torque calibration system according to claim 6, wherein: in the step (1), the lifting mechanism lifts the rotational speed torque sensor to be calibrated to a position with two ends equal to the first chuck of the fixing mechanism and the second chuck of the loading mechanism respectively, and then the fixing mechanism, the lifting mechanism and the loading mechanism move on the same straight line along the guide rail, so that one end of the rotational speed torque sensor is connected with the fixing mechanism, and the other end of the rotational speed torque sensor is connected with the loading mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164760.9A CN109765001B (en) | 2019-03-05 | 2019-03-05 | Torque calibration system and method of rotational speed and torque sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910164760.9A CN109765001B (en) | 2019-03-05 | 2019-03-05 | Torque calibration system and method of rotational speed and torque sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109765001A CN109765001A (en) | 2019-05-17 |
| CN109765001B true CN109765001B (en) | 2024-05-28 |
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| CN110296816A (en) * | 2019-07-09 | 2019-10-01 | 中国航发哈尔滨东安发动机有限公司 | A kind of test device |
| CN110411654A (en) * | 2019-08-01 | 2019-11-05 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of power-measuring device of torque and the two-parameter synchronous reproduction of revolving speed |
| CN111044215B (en) * | 2019-12-25 | 2021-09-28 | 北京石油化工学院 | Centering reference type torque sensor calibration and test bench |
| CN111829706B (en) * | 2020-08-04 | 2021-08-10 | 中国汽车工程研究院股份有限公司 | Half-shaft torque calibration device and working method thereof |
| CN114264405B (en) * | 2021-12-29 | 2022-10-14 | 山东欧瑞安电气有限公司 | Large-torque sensor calibration device and calibration method thereof |
| CN114993552A (en) * | 2022-05-24 | 2022-09-02 | 上海顺试汽车科技有限公司 | Torque sensor calibration device |
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