CN111829706B - Half-shaft torque calibration device and working method thereof - Google Patents
Half-shaft torque calibration device and working method thereof Download PDFInfo
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- CN111829706B CN111829706B CN202010774597.0A CN202010774597A CN111829706B CN 111829706 B CN111829706 B CN 111829706B CN 202010774597 A CN202010774597 A CN 202010774597A CN 111829706 B CN111829706 B CN 111829706B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0028—Force sensors associated with force applying means
- G01L5/0042—Force sensors associated with force applying means applying a torque
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M17/00—Testing of vehicles
- G01M17/007—Wheeled or endless-tracked vehicles
Abstract
The invention discloses a half-shaft torque calibration device and a working method thereof, the half-shaft torque calibration device comprises a base, slide rails are arranged at the two ends of the rear end of the top of the base, a balance trolley is connected in the slide rails in a sliding manner, a hydraulic press is fixedly arranged in the middle of the bottom of the balance trolley, a fixed shaft is connected in the middle of the bottom of the hydraulic press in a sliding manner, a connecting seat is fixedly connected with the top of the balance trolley, a supporting back plate is fixedly connected with the front end of the top of the connecting seat, a fixed rib plate is fixedly connected with the lower part of the rear side of the supporting back plate, a supporting bearing outer ring is rotatably connected with the upper part of the front end of the supporting back plate, and a connecting shaft is fixedly connected with the supporting bearing inner ring. The footprint of the base is relatively small and the entire device can be disassembled after use.
Description
Technical Field
The invention relates to the technical field of automobiles, in particular to a half-shaft torque calibration device and a working method thereof.
Background
The half shaft is also called a drive axle. The half-shafts are solid shafts that transmit torque between the differential and the drive wheels, and are typically splined at their inner ends to a side gear and at their outer ends to a hub. The vehicle torque is the torque output by the engine from the crankshaft end. Under the condition of fixed power, the engine speed and the engine speed are in inverse proportion, the higher the speed, the smaller the torque and the larger the torque, the load capacity of the automobile in a certain range is reflected. The torque and power of the vehicle are the same, and one of the main indexes of the engine is reflected on the performance of the vehicle, including acceleration, climbing capacity, suspension and the like. In the prior art, a static loading method is mostly used to calibrate the torque of a half shaft monomer, and in a static loading test system, a locking device is arranged at one end of a tested half shaft, and a loading motor is arranged at the other end of the tested half shaft. The torque of the engine is the torque output by the engine from the crankshaft. Under the condition of fixed power, the engine speed and the engine speed are in inverse proportion, the higher the speed and the lower the torque, and the higher the speed and the torque are, the load capacity of the automobile in a certain range is reflected. The external torque is called torque or external couple torque, and the internal torque is called internal couple torque or torque.
For a family car, the higher the torque, the better the acceleration; for an off-road vehicle, the larger the torque, the larger the grade; for trucks, the greater the torque, the greater the weight of the truck pull. The larger the torque of the vehicle, the better, also when driving, and the larger the torque, the better the engine is when the displacement is the same. When the automobile is driven, the automobile can feel as desired, the automobile can be accelerated when the automobile wants to accelerate, and the back-sticking feeling is good. Torque is one of the main parameters for evaluating the performance of a vehicle. In order to ensure that the vehicle does not have problems during driving, axle shaft torque measurements are made. Although the existing half-shaft calibration testing machine can accurately calibrate half-shaft torque, the half-shaft calibration testing machine is high in equipment purchase cost, large in occupied area, large in energy consumption, large in working noise and complex in test installation, and meanwhile, a half-shaft tool is long in processing period and high in cost, so that the test period is long.
Disclosure of Invention
The invention aims to provide a half-shaft torque calibration device and a working method thereof, and aims to solve the problems that a half-shaft calibration testing machine provided in the background art is high in equipment purchase cost, large in occupied area, large in energy consumption, large in working noise and complex in test installation, and meanwhile, a half-shaft tool is long in processing period and high in cost, so that the test period is long.
In order to achieve the purpose, the invention provides the following technical scheme: the half-shaft torque calibration device comprises a base, wherein two ends of the rear end of the top of the base are provided with slide rails, a balance trolley is connected in the slide rails in a sliding manner, a hydraulic press is fixedly arranged in the middle of the bottom of the balance trolley, a fixed shaft is connected in the middle of the bottom of the hydraulic press in a sliding manner, the top of the balance trolley is fixedly connected with a connecting seat, the front end of the top of the connecting seat is fixedly connected with a supporting back plate, the lower part of the rear side of the supporting back plate is fixedly connected with a fixed rib plate, the upper part of the front end of the supporting back plate is rotatably connected with a supporting bearing outer ring, the supporting bearing inner ring is fixedly connected with a connecting shaft, the rear end of the connecting shaft is fixedly provided with a protective sleeve, the front end of the connecting shaft, which is connected with the supporting back plate, is fixedly connected with a connecting rod, and the front end of the connecting rod is fixedly connected with a protective cushion block, the front end of the protection cushion block is fixedly connected with a second flange plate, the rear end of the connecting rod is rotatably connected with a first scale pan, the front end of the connecting rod is rotatably connected with a second scale pan, the middle of the front end of the top of the base is connected with a signal collecting device, the middle of the rear end of the signal collecting device is connected with a connecting table, the rear end of the connecting table is fixedly connected with an installation block, the middle of the top of the installation block is fixedly connected with a support column, the top of the support column is fixedly connected with a signal collecting device, the top of the signal collecting device is fixedly connected with an electric dynamometer, the middle of the rear end of the electric dynamometer is fixedly connected with a torque and rotation speed sensor, the middle of the rear end of the torque and rotation speed sensor is rotatably connected with a rotation shaft, the rear end of the rotation shaft is fixedly connected with a first flange plate, the rear end of the first flange plate is fixedly connected with a spline, and the rear end of the spline is fixedly connected with a half shaft, and a strain foil bridge is fixedly arranged in the middle of the half shaft.
According to a preferable technical scheme, the second weight tray comprises a bolt, a first connecting arm, a second connecting arm, a fixed connecting rod and a weight placing box, the front end of the connecting rod is connected with the bolt in a penetrating mode, the bolt is rotatably connected with the connecting rod, the first connecting arm is fixedly connected to the front end of the joint of the bolt and the connecting rod, the lower end of the first connecting arm is fixedly connected to the front end of the top of the weight placing box, the second connecting arm is fixedly connected to the rear end of the joint of the bolt and the connecting rod, the fixed connecting rod is fixedly connected to the lower portion of the position, between the first connecting arm and the second connecting arm, of the second weight tray and the first weight tray are identical in structure and size.
According to a preferable technical scheme, the lower parts of the front end and the rear end of the balance trolley are respectively and rotatably connected with two idler wheels, the idler wheels of the balance trolley are rotatably connected in the two slide rails, the rear ends of the two slide rails penetrate through the rear end of the base, and a gap is formed between the bottom of the balance trolley and the top of the base.
According to a preferable technical scheme of the invention, the supporting bearing is arranged in the supporting back plate, the connecting shaft penetrates through the supporting back plate, the supporting back plate is fixedly connected to the front end of the protective sleeve, the supporting back plate is fixedly connected to the rear end of the fixed cushion block, the connecting shaft is rotatably connected to the middle of the fixed cushion block, and the connecting shaft is fixedly connected to the middle of the connecting rod.
As a preferred technical scheme of the invention, the axes of the connecting shaft, the half shaft and the rotating shaft are the same, the front end of the half shaft is fixedly connected with a first flange plate through a spline, the rear end of the half shaft is rotatably connected with a second flange plate, and a connecting hole penetrates through the middle of the second flange plate.
As a preferred technical scheme of the present invention, the fixed rib plate is a right-angled triangular prism, a right-angled side surface of the fixed rib plate is fixedly connected to the support back plate, and another right-angled side surface of the fixed rib plate is fixedly connected to the connecting seat.
As a preferable technical scheme of the invention, the signal acquisition device is arranged in a ring shape, the axis of the signal acquisition device is the same as that of the half shaft, and the signal acquisition device is arranged outside the middle of the half shaft.
As a preferred technical scheme, the front end of the rotating shaft is rotatably connected with an electric dynamometer, a first flange fixedly connected with the rear end of the rotating shaft is fixedly clamped inside a spline, a half shaft is fixedly clamped at the rear end inside the spline, and the front end of the half shaft is in contact connection with the first flange.
According to a preferable technical scheme, the box walls on two sides of the weight placing box are higher than the box walls on the front end and the rear end, grooves are formed in the middles of the top portions of the box walls on the two sides of the weight placing box, the first connecting arm and the second connecting arm are fixedly installed in the grooves in the top portions of the two box walls respectively, the first connecting arm and the second connecting arm are L-shaped, the top portion of the first connecting arm is semi-cylindrical, the lengths of two sides of the first connecting arm are the same, the first connecting arm and the second connecting arm are the same in structure and size, and a fixed connecting rod is fixedly connected to the bottom portion between the vertical sides of the first connecting arm and the second connecting arm.
As a preferred technical scheme of the present invention, the electric dynamometer is started, the torque and rotation speed sensor is installed at the rear end of the electric dynamometer and is relatively zero, a rotation shaft at the front end of the torque and rotation speed sensor drives a half shaft to rotate through a first flange and a spline, the other end of the half shaft is rotatably connected with a second flange, two ends of the second flange are connected with a first scale pan and a second scale pan, the signal acquisition device acquires strain voltage for the half shaft in an idle load state, and the output torque of the torque and rotation speed sensor is zero; the first weight tray and the second weight tray are used for carrying out loading verification by adding weights on the two sides of the first weight tray and the second weight tray, the strain foil bridge circuit is used for amplifying and collecting strain voltage, actual signals captured by the signal collecting device are output to the signal collecting device, the torque rotating speed sensor outputs actual torque values to find a corresponding relation, and actual half shaft torque is obtained.
Compared with the prior art, the invention has the beneficial effects that:
according to the half-shaft torque calibration device and the working method thereof, the balance trolley and the electric dynamometer are used for performing a half-shaft calibration test on a half shaft, the whole structure is simpler relative to a half-shaft calibration testing machine, the device is arranged on the base, the occupied area of the base is relatively small, the whole device can be disassembled after the use is finished, the whole device is more convenient, and the practical space is not occupied; in the use process of the device, only the signal acquisition device and the electric dynamometer consume energy, the whole energy consumption is smaller, in the test process, only the electric dynamometer generates relatively smaller noise, the whole noise is smaller, meanwhile, the device can directly carry out torque calibration detection on the half shaft, the whole half shaft tool can be ignored to a certain extent, and the test period is shortened; the device is relatively simpler to install and simpler to operate; the obtained calibration data is relatively closer to the actual condition, the half-axle torque can be calibrated more simply by comparing the half-axle torque calibration record table of the vehicle according to the half-axle torque output by the torque rotating speed sensor.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of an electric dynamometer and a half shaft according to the present invention;
FIG. 3 is a schematic cross-sectional view of an electric dynamometer and a half shaft according to the present invention;
FIG. 4 is a schematic sectional view of the balance dolly of the invention;
FIG. 5 is a schematic illustration of the structure of a balance according to the invention;
FIG. 6 is a schematic view of the structure of a weight tray of the present invention;
FIG. 7 is a schematic view of the workflow of the present invention;
FIG. 8 is a schematic diagram of the torque output variation of the present invention;
fig. 9 is a comparison table of loading weights of the present invention.
In the figure: 1. a first weight pan; 2. a support backing plate; 3. a connecting rod; 4. a balance trolley; 5. a slide rail; 6. a second weight tray; 7. a base; 8. an electric dynamometer; 9. a signal collection device; 10. a signal acquisition device; 11. a half shaft; 12. a support pillar; 13. mounting blocks; 14. a connecting table; 15. a strain gage bridge road; 16. a spline; 17. a first flange plate; 18. a rotating shaft; 19. a torque and rotation speed sensor; 20. a support bearing; 21. a protective sleeve; 22. fixing the cushion block; 23. protecting the cushion block; 24. a connecting shaft; 25. a second flange plate; 26. fixing the rib plate; 27. a connecting seat; 28. a hydraulic press; 29. a fixed shaft; 601. a bolt; 602. a first connecting arm; 603. a second connecting arm; 604. fixing the connecting rod; 605. and a weight placing box.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, the invention provides a half-shaft torque calibration device and a working method thereof, comprising a base 7, wherein two ends of the rear end of the top of the base 7 are provided with slide rails 5, a balance trolley 4 is connected in the slide rails 5 in a sliding manner, a hydraulic press 28 is fixedly arranged in the middle of the bottom of the balance trolley 4, a fixed shaft 29 is connected in the middle of the bottom of the hydraulic press 28 in a sliding manner, the top of the balance trolley 4 is fixedly connected with a connecting seat 27, the front end of the top of the connecting seat 27 is fixedly connected with a supporting back plate 2, the lower part of the rear side of the supporting back plate 2 is fixedly connected with a fixed rib plate 26, the upper part of the front end of the supporting back plate 2 is rotatably connected with an outer ring of a supporting bearing 20, the inner ring of the supporting bearing 20 is fixedly connected with a connecting shaft 24, the rear end of the connecting shaft 24 is fixedly connected with a protective sleeve 21, the front end of the connecting shaft 24 and the supporting back plate 2 is fixedly connected with a fixed cushion block 22, the front end of the connecting rod 3 is rotatably connected with the fixed cushion block 22, the front end of the connecting rod 3 is fixedly connected with a protective cushion block 23, the front end of the protective cushion block 23 is fixedly connected with a second flange 25, the rear end of the connecting rod 3 is rotatably connected with a first scale pan 1, the front end of the connecting rod 3 is rotatably connected with a second scale pan 6, the middle of the front end of the top of the base 7 is fixedly connected with a signal collecting device 9, the middle of the rear end of the signal collecting device 9 is fixedly connected with a connecting table 14, the rear end of the connecting table 14 is fixedly connected with a mounting block 13, the middle of the top of the mounting block 13 is fixedly connected with a support column 12, the top of the support column 12 is fixedly connected with a signal collecting device 10, the side surface of the signal collecting device 9 is connected with an electric dynamometer 8, the middle of the rear end of the electric dynamometer 8 is fixedly connected with a torque and rotation speed sensor 19, the middle of the rear end of the torque and rotation speed sensor 19 is rotatably connected with a rotation shaft 18, the rear end of the rotation shaft 18 is fixedly connected with a first flange 17, and the rear end of the first flange 17 is fixedly connected with a spline 16, the rear end of the spline 16 is fixedly connected with a half shaft 11, and the middle of the half shaft 11 is fixedly provided with a strain foil bridge 15.
The second weight tray 6 comprises a bolt 601, a first connecting arm 602, a second connecting arm 603, a fixed connecting rod 604 and a weight placing box 605, the front end of the connecting rod 3 is connected with the bolt 601 in a penetrating manner, the bolt 601 is rotatably connected with the connecting rod 3, the front end of the joint of the bolt 601 and the connecting rod 3 is fixedly connected with the first connecting arm 602, the lower end of the first connecting arm 602 is fixedly connected with the front end of the top of the weight placing box 605, the rear end of the joint of the bolt 601 and the connecting rod 3 is fixedly connected with the second connecting arm 603, the lower end of the second connecting arm 603 is fixedly connected with the rear end of the top of the weight placing box 605, the fixed connecting rod 604 is fixedly connected with the lower part between the first connecting arm 602 and the second connecting arm 603, and the second weight tray 6 and the first weight tray 1 are identical in structure and size. Relative rotation between first weight dish 1 and second weight dish 6 and the connecting rod 3, the box wall is higher than both ends tank wall around the box 605 is placed to the weight, and the box 605 carries out the interpolation of weight to placing the weight more conveniently like this, and the weight is placed and is seted up flutedly in the middle of the box wall top of box 605 both sides, and first linking arm 602 and second linking arm 603 are fixed mounting respectively in two tank wall top recesses. The first connecting arm 602 and the second connecting arm 603 are arranged in an L shape, the top of the first connecting arm 602 is arranged in a semi-cylindrical shape, the two sides of the first connecting arm 602 are identical in length, the first connecting arm 602 and the second connecting arm 603 are identical in structure and size, and a fixed connecting rod 604 is fixedly connected to the bottom of the first connecting arm 602 and the vertical side of the second connecting arm 603.
The lower parts of the front end and the rear end of the balance trolley 4 are rotatably connected with two idler wheels, the idler wheels of the balance trolley 4 are rotatably connected in the two slide rails 5, the rear ends of the two slide rails 5 penetrate through the rear end of the base 7, and a gap is formed between the bottom of the balance trolley 4 and the top of the base 7. Support bearing 20 sets up inside supporting backplate 2, and connecting axle 24 runs through supporting backplate 2, and protective sleeve 21 front end fixedly connected with supports backplate 2, and fixed cushion 22 rear end fixedly connected with supports backplate 2, and the centre rotates and is connected with connecting axle 24, and fixedly connected with connecting axle 24 in the middle of the connecting rod 3. The axes of the connecting shaft 24, the half shaft 11 and the rotating shaft 18 are the same, the front end of the half shaft 11 is fixedly connected with a first flange 17 through a spline 16, the rear end of the half shaft 11 is rotatably connected with a second flange 25, a connecting hole penetrates through the middle of the second flange 25, and the front end of the connecting shaft 24 extends into the connecting hole. Fixed floor 26 sets up to right angle triangular prism shape, and fixed floor 26 right angle limit side fixedly connected with supports backplate 2, and another right angle limit side fixedly connected with connecting seat 27 of fixed floor 26, and fixed floor 26 has improved the stability between support backplate 2 and the connecting seat 27, guarantees the steady operation between second ring flange 25 and the semi-axis 11. The signal acquisition device 10 is arranged in a ring shape, the axis of the signal acquisition device 10 is the same as that of the half shaft 11, and the signal acquisition device 10 is arranged outside the middle of the half shaft 11, so that data of the half shaft 11 can be acquired more comprehensively. The front end of the rotating shaft 18 is connected with the electric dynamometer 8 in a rotating mode, a first flange plate 17 fixedly connected with the rear end of the rotating shaft 18 is fixedly clamped inside the spline 16, a half shaft 11 is fixedly clamped at the rear end inside the spline 16, and the front end of the half shaft 11 is connected with the first flange plate 17 in a contact mode.
In the working state of the electric dynamometer 8, a torque and rotation speed sensor 19 is mounted at the rear end of the electric dynamometer 8 and is relatively zero, a rotation shaft 18 at the front end of the torque and rotation speed sensor 19 drives a half shaft 11 to rotate through a first flange 17 and a spline 16, the other end of the half shaft 11 is rotatably connected with a second flange 25, two ends of the second flange 25 are connected with a first weight tray 1 and a second weight tray 6, a signal acquisition device 10 acquires strain voltage for the half shaft 11 in an idle load state, and the output torque of the torque and rotation speed sensor 19 is zero; the first weight tray 1 and the second weight tray 6 are used for carrying out loading verification by adding weights on the two sides and the one side, the strain foil bridge circuit 15 is used for amplifying and collecting strain voltage, actual signals captured by the signal collecting device 10 are output to the signal collecting device 9, the torque rotating speed sensor 19 outputs actual torque values to find a corresponding relation, and the actual half shaft 11 torque is obtained.
When the device is used specifically, the invention relates to a half-shaft torque calibration device and a working method thereof;
referring to fig. 1, 3 and 4;
firstly, a balance trolley 4 is arranged in a slide rail 5 at the top of a base 7 in a rotating mode, then the front end of a half shaft 11 pasted with a strain gauge bridge 15 is arranged in a spline 16, the half shaft is fixedly connected with a first flange 17 through the spline 16, the half shaft 11 penetrates through a signal acquisition device 10, the supporting column 12, the mounting block 13 and the connecting table 14 at the lower part of the signal acquisition device 10 are adjusted to ensure that the axis of the signal acquisition device 10 is superposed with the axis of the half shaft 11, then the balance trolley 4 is controlled to move towards the direction of the half shaft 11, so that the rear end of the half shaft 11 is rotatably arranged in the second flange 25, then a protective sleeve 21 is installed to protect the rear end of the connecting shaft 24, then the installed whole device is finely adjusted to ensure the integrity of the connecting part, after the fine adjustment is completed, the hydraulic press 28 is started to drive the fixed shaft 29 to move downwards, so that the balance trolley 4 is integrally fixed on the base 7;
referring to fig. 7;
after the installation is finished, firstly, under the working state of the electric dynamometer 8, the torque and rotation speed sensor 19 is installed at the rear end of the electric dynamometer 8 and is relatively zero, the rotation shaft 18 at the front end of the torque and rotation speed sensor 19 drives the half shaft 11 to rotate through the first flange 17 and the spline 16, the other end of the half shaft 11 is rotatably connected with the second flange 25, the two ends of the second flange 25 are connected with the first weight tray 1 and the second weight tray 6, the signal acquisition device 10 acquires strain voltage for the half shaft 11 under the idle load state, and the output torque of the torque and rotation speed sensor 19 is zero; the first weight tray 1 and the second weight tray 6 are used for carrying out loading verification by adding weights on the single sides of the two sides, the strain foil bridge circuit 15 is used for amplifying and collecting strain voltage, actual signals captured by the signal collecting device 10 are output to the signal collecting device 9, the torque rotating speed sensor 19 outputs actual torque values to find a corresponding relation, and the actual half shaft 11 torque is obtained;
refer to fig. 5 and 6;
in the process of adding weights on the first weight tray 1 and the second weight tray 6, the weights are sequentially placed in the weight placing box 605, the bolt 601 is rotatably connected with the connecting rod 3, when the connecting rod 3 deviates, the weight placing box 605 rotates with the connecting rod 3 through the first connecting arm 602 and the second connecting arm 603, and the weight placing box 605 is always kept in a horizontal state; the half shaft 11 and the second flange 25 are connected in a rotating mode, the half shaft 11 influences the working state of the second flange 25, the connecting rod 3 is further influenced, and data acquisition and output of the connecting rod 3 are facilitated.
Referring to fig. 8, 9;
the torque output of the torque and rotation speed sensor 19 is linear, and the strain voltage signal acquired by the signal acquisition device 10 is increased in a corresponding linear change according to the torque output change of the torque and rotation speed sensor 19; according to a vehicle half-shaft torque calibration recording table, a unilateral loading test is carried out on the first scale tray 1 and the second scale tray 6 at two ends of the balance trolley 4, the difference between the unilateral loading test and the torque output of the torque and rotation speed sensor 19 is not large basically, and when the unilateral loading is larger, the numerical value obtained by converting the strain voltage acquired by the signal acquisition device 10 is closer to the torque value output by the torque and rotation speed sensor 19.
In the description of the present invention, it is to be understood that the indicated orientations or positional relationships are based on the orientations or positional relationships shown in the drawings and are only for convenience in describing the present invention and simplifying the description, but are not intended to indicate or imply that the indicated devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly attached, detachably attached, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
1. Half axle torque calibration device, including base (7), its characterized in that: slide rail (5) have been seted up at base (7) top rear end both ends, sliding connection has balance dolly (4) in slide rail (5), fixed mounting has hydraulic press (28) in the middle of balance dolly (4) bottom, sliding connection has fixed axle (29) in the middle of hydraulic press (28) bottom, balance dolly (4) top fixedly connected with connecting seat (27), connecting seat (27) top front end fixedly connected with support backplate (2), support backplate (2) rear side lower part fixedly connected with fixed floor (26), support backplate (2) front end upper portion rotates and is connected with support bearing (20) outer lane, support bearing (20) inner circle fixedly connected with connecting axle (24), connecting axle (24) rear end fixed mounting has protective case (21), connecting axle (24) and support backplate (2) junction front end fixed connection has fixed cushion (22), the front end of the fixed cushion block (22) is rotatably connected with a connecting rod (3), the front end of the connecting rod (3) is fixedly connected with a protective cushion block (23), the front end of the protective cushion block (23) is fixedly connected with a second flange (25), the rear end of the connecting rod (3) is rotatably connected with a first scale pan (1), the front end of the connecting rod (3) is rotatably connected with a second scale pan (6), the middle of the front end of the top of the base (7) is fixedly connected with a signal collecting device (9), the middle of the rear end of the signal collecting device (9) is connected with a connecting table (14) through a collecting wire harness, the rear end of the connecting table (14) is fixedly connected with a mounting block (13), the middle of the top of the mounting block (13) is fixedly connected with a supporting column (12), the top of the supporting column (12) is fixedly connected with a signal collecting, the middle of the rear end of the electric dynamometer (8) is fixedly connected with a torque and rotation speed sensor (19), the middle of the rear end of the torque and rotation speed sensor (19) is rotatably connected with a rotation shaft (18), the rear end of the rotation shaft (18) is fixedly connected with a first flange plate (17), the rear end of the first flange plate (17) is fixedly connected with a spline (16), the rear end of the spline (16) is fixedly connected with a half shaft (11), and the middle of the half shaft (11) is fixedly provided with a strain gauge bridge circuit (15);
the second weight plate (6) comprises a bolt (601), a first connecting arm (602), a second connecting arm (603), a fixed connecting rod (604) and a weight placing box (605), the front end of the connecting rod (3) is connected with the bolt (601) in a penetrating manner, the bolt (601) is rotatably connected with the connecting rod (3), the front end of the joint of the bolt (601) and the connecting rod (3) is fixedly connected with the first connecting arm (602), the lower end of the first connecting arm (602) is fixedly connected with the front end of the top of the weight placing box (605), the rear end of the joint of the bolt (601) and the connecting rod (3) is fixedly connected with the second connecting arm (603), the lower end of the second connecting arm (603) is fixedly connected with the rear end of the top of the weight placing box (605), the lower part between the first connecting arm (602) and the second connecting arm (603) is fixedly connected with the fixed connecting rod (604), and the second weight plate (6) and the first weight plate (1) have the same structure, The sizes are the same;
the lower parts of the front end and the rear end of the balance trolley (4) are rotatably connected with two idler wheels, the idler wheels of the balance trolley (4) are rotatably connected in the two slide rails (5), the rear ends of the two slide rails (5) penetrate through the rear end of the base (7), and a gap is formed between the bottom of the balance trolley (4) and the top of the base (7);
the supporting bearing (20) is arranged inside the supporting back plate (2), the connecting shaft (24) penetrates through the supporting back plate (2), the supporting back plate (2) is fixedly connected to the front end of the protective sleeve (21), the supporting back plate (2) is fixedly connected to the rear end of the fixed cushion block (22), the connecting shaft (24) is rotatably connected to the middle of the fixed cushion block (22), and the connecting shaft (24) is fixedly connected to the middle of the connecting rod (3);
the axes of the connecting shaft (24), the half shaft (11) and the rotating shaft (18) are the same, the front end of the half shaft (11) is fixedly connected with a first flange (17) through a spline (16), the rear end of the half shaft (11) is rotatably connected with a second flange (25), and a connecting hole penetrates through the middle of the second flange (25);
the fixed rib plate (26) is arranged to be a right-angle triangular prism, a supporting back plate (2) is fixedly connected to one right-angle side face of the fixed rib plate (26), and a connecting seat (27) is fixedly connected to the other right-angle side face of the fixed rib plate (26);
the signal acquisition device (10) is arranged in a ring shape, the axis of the signal acquisition device (10) is the same as that of the half shaft (11), and the signal acquisition device (10) is arranged outside the middle of the half shaft (11);
the front end of the rotating shaft (18) is rotatably connected with an electric dynamometer (8), a first flange plate (17) fixedly connected with the rear end of the rotating shaft (18) is fixedly clamped inside the spline (16), a half shaft (11) is fixedly connected with the rear end inside the spline (16), and the front end of the half shaft (11) is in contact connection with the first flange plate (17);
under the working state of the electric dynamometer (8), the torque and rotation speed sensor (19) is installed at the rear end of the electric dynamometer (8) and is in a zero state, a rotation shaft (18) at the front end of the torque and rotation speed sensor (19) drives a half shaft (11) to move through a first flange (17) and a spline (16) and is in a balanced state, the other end of the half shaft (11) is rotatably connected with a second flange (25), two ends of the second flange (25) are connected with a first weight plate (1) and a second weight plate (6), the signal acquisition device (10) acquires strain voltage for the half shaft (11) in an idle load state, and the output torque of the torque and rotation speed sensor (19) measured by the electric dynamometer (8) is zero; the first weight plate (1) and the second weight plate (6) are subjected to loading verification by adding weights on two sides and one side, the strain foil bridge (15) is used for amplifying and collecting strain voltage, an actual signal captured by the signal collecting device (10) is output to the signal collecting device (9), the torque rotating speed sensor (19) outputs an actual torque value to find a corresponding relation, and an actual half shaft (11) torque is obtained.
2. The axle shaft torque calibration device according to claim 1, characterized in that: the weight is placed case (605) both sides case wall and is higher than both ends tank wall around, set up flutedly in the middle of the case (605) both sides tank wall top is placed to the weight, first linking arm (602) and second linking arm (603) are fixed mounting respectively in two tank wall top recesses, first linking arm (602) and second linking arm (603) set up to "L" font, first linking arm (602) top sets up to the semicircle column type, first linking arm (602) both sides length is the same, first linking arm (602) and second linking arm (603) the same, the size is the same, bottom fixedly connected with fixed connecting rod (604) between first linking arm (602) and the vertical limit of second linking arm (603).
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| CN114136519A (en) * | 2021-12-03 | 2022-03-04 | 安徽江淮汽车集团股份有限公司 | Automobile half-axle dynamic torque testing system |
| CN114636501A (en) * | 2022-03-30 | 2022-06-17 | 武汉达安科技有限公司 | Torque calibration device and method for steering robot |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU631792A1 (en) * | 1975-10-30 | 1978-11-05 | Предприятие П/Я Г-4605 | Stand for calibrating torque meters |
| JP2006220572A (en) * | 2005-02-14 | 2006-08-24 | Meidensha Corp | Gauging apparatus of motive energy testing apparatus |
| CN202853842U (en) * | 2012-10-11 | 2013-04-03 | 吉林大学 | Test bench of strain gauge for calibrating and measuring vehicle axle torque |
| CN204881971U (en) * | 2015-04-17 | 2015-12-16 | 成都理工大学 | Static test bench of maring of torque sensor |
| CN205138788U (en) * | 2015-11-27 | 2016-04-06 | 重庆理工大学 | Transmission shaft torque calibration device |
| CN105466630A (en) * | 2015-11-27 | 2016-04-06 | 重庆理工大学 | A torque sensor calibrating method |
| CN207318108U (en) * | 2017-09-28 | 2018-05-04 | 北京新能源汽车股份有限公司 | Moment of torsion demarcates rack |
| CN207472496U (en) * | 2017-10-12 | 2018-06-08 | 潍柴动力股份有限公司 | A kind of axis torque calibrating table |
| CN109765001A (en) * | 2019-03-05 | 2019-05-17 | 安徽合力股份有限公司 | A kind of torque calibration system and its scaling method of torque and speed sensors |
| CN110146206A (en) * | 2019-06-04 | 2019-08-20 | 安徽江淮汽车集团股份有限公司 | Torque dynamic calibration system, method and computer readable storage medium |
-
2020
- 2020-08-04 CN CN202010774597.0A patent/CN111829706B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU631792A1 (en) * | 1975-10-30 | 1978-11-05 | Предприятие П/Я Г-4605 | Stand for calibrating torque meters |
| JP2006220572A (en) * | 2005-02-14 | 2006-08-24 | Meidensha Corp | Gauging apparatus of motive energy testing apparatus |
| CN202853842U (en) * | 2012-10-11 | 2013-04-03 | 吉林大学 | Test bench of strain gauge for calibrating and measuring vehicle axle torque |
| CN204881971U (en) * | 2015-04-17 | 2015-12-16 | 成都理工大学 | Static test bench of maring of torque sensor |
| CN205138788U (en) * | 2015-11-27 | 2016-04-06 | 重庆理工大学 | Transmission shaft torque calibration device |
| CN105466630A (en) * | 2015-11-27 | 2016-04-06 | 重庆理工大学 | A torque sensor calibrating method |
| CN207318108U (en) * | 2017-09-28 | 2018-05-04 | 北京新能源汽车股份有限公司 | Moment of torsion demarcates rack |
| CN207472496U (en) * | 2017-10-12 | 2018-06-08 | 潍柴动力股份有限公司 | A kind of axis torque calibrating table |
| CN109765001A (en) * | 2019-03-05 | 2019-05-17 | 安徽合力股份有限公司 | A kind of torque calibration system and its scaling method of torque and speed sensors |
| CN110146206A (en) * | 2019-06-04 | 2019-08-20 | 安徽江淮汽车集团股份有限公司 | Torque dynamic calibration system, method and computer readable storage medium |
Non-Patent Citations (1)
| Title |
|---|
| 摆线推进器试验装置测力天平的设计计算与标定;彭儒良，黄晓容;《船工科技》;19860402;第40-51页 * |
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