CN114112156A - Constant velocity universal joint axial derivative force measuring device and testing machine - Google Patents
Constant velocity universal joint axial derivative force measuring device and testing machine Download PDFInfo
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- CN114112156A CN114112156A CN202210068764.9A CN202210068764A CN114112156A CN 114112156 A CN114112156 A CN 114112156A CN 202210068764 A CN202210068764 A CN 202210068764A CN 114112156 A CN114112156 A CN 114112156A
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- constant velocity
- force
- universal joint
- velocity universal
- shaft
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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
- G01L5/12—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring axial thrust in a rotary shaft, e.g. of propulsion plants
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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
- G01L5/16—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring several components of force
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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
- G01M13/00—Testing of machine parts
Abstract
The invention discloses a constant velocity universal joint axial derived force measuring device, which comprises a torque sensor, a rotating shaft and a chuck connected with a constant velocity universal joint test piece, wherein the chuck is connected with the rotating shaft through the torque sensor; a constant velocity universal joint axial derived force testing machine is also disclosed. The invention can accurately measure the axial force under the state of bearing torque and can acquire the derived force signal under the rotation state.
Description
Technical Field
The invention relates to testing equipment, in particular to a constant velocity universal joint axial derivative force measuring device and a constant velocity universal joint axial derivative force testing machine.
Background
The tester industry belongs to high-technology intensive industry, integrates the application of industries such as machinery, hydraulic pressure, pneumatics, electric power and the like, integrates multiple technical categories such as sensors, data acquisition, control engineering, computers, engineering software and the like, and has higher access threshold. For a long time, high-end test instruments and equipment are basically controlled by companies in developed countries in Europe and America to form a certain monopoly situation, and domestic test equipment basically competes in middle and low-end fields. The existing market is basically monopolized by German GIM company and Spain ENCOPM company, and the application of domestic products in the industry is zero. One of the major obstacles that make it difficult for domestic enterprises to enter this field is the high technical threshold. The test requirements of the fast universal joint axial derivative force test are as follows, torque is applied to the universal joint in a rotating state, and the generated axial derivative force is tested in different swing angle states. The concrete requirements are as follows: rotating speed: 200rpm, torque: 600Nm, swing angle: 0 to 20 degrees. From the test conditions, to develop and develop the device, the following two technical problems must be solved:
1. how to solve the problem of accurately measuring the axial force of the sensor under the state of bearing the torque;
2. the problem of how to transmit and collect the derived force signals in the rotating state.
Disclosure of Invention
In view of the problem that the existing testing machine cannot accurately measure, the invention provides a constant velocity universal joint axial derivative force testing machine which can solve the effects that the axial force is accurately measured in a torque bearing state and a derivative force signal can be acquired in a rotating state.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a constant velocity cardan joint axial derivation force measuring device, includes torque sensor, rotation axis and the chuck of being connected with the constant velocity cardan joint test piece, the chuck passes through torque sensor and is connected with the rotation axis, be equipped with measuring force device between chuck and the torque sensor, measuring force device includes preceding mounting disc and the back mounting disc of coaxial setting, preceding mounting disc and chuck coaxial coupling, back mounting disc and torque sensor coaxial coupling, connect through a plurality of evenly distributed's force cell between preceding mounting disc and the back mounting disc, torque sensor coaxial coupling is to the rotation axis front end.
In accordance with one aspect of the invention, an axial passage is provided in the rotating shaft for passage of a data line of the load cell.
According to one aspect of the invention, the rear end of the rotating shaft is provided with an electric slip ring connected with a data line, and the electric slip ring is connected with a data receiving end in a sliding mode.
In accordance with one aspect of the invention, the load cell comprises 4 load cells distributed in a square between a front mounting plate and a rear mounting plate.
In accordance with one aspect of the invention, the load cell is a triaxial force sensor for enabling the load cell itself to withstand a certain lateral force without affecting the measured axial force.
According to one aspect of the invention, a connecting piece is coaxially arranged between the rear mounting plate and the torque sensor, a through hole communicated with the axial channel in the rotating shaft is arranged at the axle center of the connecting piece, a plurality of radial connecting holes are further arranged on the connecting piece, and a data wire of the force sensor enters the axial channel of the rotating shaft through the connecting holes and the through hole in sequence.
An axial derivative force testing machine for constant velocity universal joints comprises a base platform, wherein a rotary loading device and a swing angle loading device are arranged on the base platform, a test piece and an accompanying test shaft which are arranged in parallel are connected between the rotary loading device and the swing angle loading device, the rotary loading device is used for driving the test piece to rotate and applying torque to the test piece, the swing angle loading device is used for adjusting the angle of the test piece, and comprises the constant velocity universal joint axial derivative force measuring device, the rotary loading device comprises a first transmission gear box, a second transmission gear box is arranged on the swing angle loading device, one end of the test accompanying shaft is connected with one end of the test piece through a first transmission gear box, the other end of the test accompanying shaft is connected with the constant velocity universal joint axial derived force measuring device through a second transmission gear box, and the constant velocity universal joint axial derived force measuring device is connected with the other end of the test piece.
According to one aspect of the invention, the rotary loading device comprises a torque loading device and a rotary driving device, wherein the torque loading device is connected with the auxiliary shaft and applies torque to the auxiliary shaft, and the rotary driving device is connected with the auxiliary shaft and drives the auxiliary shaft to rotate.
According to one aspect of the invention, the torque loading device comprises a first servo motor, a primary speed reducer, an input shaft, a rotary driving shaft, a secondary speed reducer and an output end, wherein the output end is connected with the test-accompanying shaft, the rotary driving shaft is connected with the rotary driving device through a synchronous belt wheel, the first servo motor is connected with the input shaft through the primary speed reducer, the input shaft axially penetrates through the rotary driving shaft and is connected with the output end through the secondary speed reducer, and the rotary driving shaft is connected with the output end.
According to one aspect of the invention, the swing angle loading device comprises a swing sliding table, an arc guide rail arranged on a base platform, a second servo motor and a swing angle sensor, wherein one end of the swing sliding table is connected to the base platform through a rotating shaft, the other end of the swing sliding table is slidably connected to the arc guide rail, and the second servo motor is connected with the swing sliding table through a ball screw and drives the swing sliding table to swing along the arc guide rail.
In accordance with one aspect of the invention, the base platform is made of cast iron.
The implementation of the invention has the advantages that: the novel sensor structure is connected in series to a test system to rotate synchronously with a test piece, and axial derivative force is measured in the state, so that the axial derivative force measuring device has the advantages of high measurement precision and simple mechanical structure; furthermore, a sensor group is designed, four sensors are arranged on a force measuring surface in a square mode, and the lateral force of the sensors under the action of torque is reduced by utilizing a couple effect; the triaxial force sensor is adopted, so that the sensor can bear a certain lateral force without influencing the measured axial force; and carrying out signal transmission through the electric slip ring. Its advantages are stable signal transmission, no distortion and high effect on interference.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic exterior view of a constant velocity universal joint axial derivative force tester according to the present invention;
FIG. 2 is a schematic structural view of an axial derivative force measuring device of a constant velocity joint according to the present invention;
FIG. 3 is a schematic structural diagram of a rotary loading apparatus according to the present invention;
FIG. 4 is a schematic side view of the pivot angle loading apparatus of the present invention;
fig. 5 is a schematic top view of the swing angle loading device according to the present invention.
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.
Example one
As shown in fig. 2, the constant velocity universal joint axial derived force measuring device comprises a torque sensor 2, a rotating shaft 3 and a chuck 4 connected with a constant velocity universal joint test piece 5, wherein the chuck 4 is connected with the rotating shaft 3 through the torque sensor 2, a force measuring device 1 is arranged between the chuck 4 and the torque sensor 2, the force measuring device 1 comprises a front mounting disc 11 and a rear mounting disc 12 which are coaxially arranged, the front mounting disc 11 is coaxially and fixedly connected with the chuck 4, the rear mounting disc 12 is coaxially and fixedly connected with the torque sensor 2, the front mounting disc 11 is connected with the rear mounting disc 12 through a plurality of force measuring sensors 13 which are uniformly distributed, and the torque sensor 2 is coaxially connected with the front end of the rotating shaft 3. The load cells 13 comprise 4 load cells 13 which are distributed between the front mounting plate 11 and the rear mounting plate 12 in a square shape. The load cell 13 is a triaxial force sensor, and is configured to enable the load cell to bear a certain lateral force without affecting the measured axial force.
The novel sensor structure is connected in series to a test system to rotate synchronously with a test piece, and axial derivative force is measured in the state, so that the axial derivative force measuring device has the advantages of high measurement precision and simple mechanical structure; furthermore, a sensor group is designed, four sensors are arranged on a force measuring surface in a square mode, and the lateral force of the sensors under the action of torque is reduced by utilizing a couple effect; the triaxial force sensor is adopted, so that the sensor can bear certain lateral force without influencing the measured axial force.
Example two
As shown in fig. 2, the constant velocity universal joint axial derivation force measuring device comprises a torque sensor 2, a rotating shaft 3 and a chuck 4 connected with a constant velocity universal joint test piece 5, wherein the chuck 4 is connected with the rotating shaft 3 through the torque sensor 2, a force measuring device 1 is arranged between the chuck 4 and the torque sensor 2, the force measuring device 1 comprises a front mounting disc 11 and a rear mounting disc 12 which are coaxially arranged, the front mounting disc 11 is coaxially and fixedly connected with the chuck 4, the rear mounting disc 12 is coaxially and fixedly connected with the torque sensor 2, the front mounting disc 11 is connected with the rear mounting disc 12 through a plurality of force measuring sensors 13 which are uniformly distributed, the torque sensor 2 is coaxially connected with the front end of the rotating shaft 3, and an axial channel 31 is arranged in the rotating shaft 3 and used for passing through a data line 131 of the force measuring sensors 13. The rear end of the rotating shaft 3 is provided with an electric slip ring 32 connected with a data line, and the electric slip ring is connected with a data receiving end 33 in a sliding manner and used for data transmission. The rear mounting disc 12 and the torque sensor 2 are coaxially provided with a connecting piece 14, the axis of the connecting piece 14 is provided with a through hole 141 communicated with an axial channel in the rotating shaft, the connecting piece is also provided with a plurality of radial connecting holes 142, and a data wire of the force measuring sensor enters the axial channel of the rotating shaft through the connecting holes and the through holes in sequence. The load cells 13 comprise 4 load cells 13 which are distributed between the front mounting plate 11 and the rear mounting plate 12 in a square shape. The load cell 13 is a triaxial force sensor, and is configured to enable the load cell to bear a certain lateral force without affecting the measured axial force. Wireless transmission is an ideal solution, and the technology is mature along with the development of domestic sensor technology. However, in practical application, the problem of interference cannot be solved, and the transmission rate is too low to be applied in this scenario. Therefore, in the present embodiment, a wired transmission scheme is adopted, and compared with a wireless transmission scheme, the wired transmission scheme is to transmit signals through an electrical slip ring. Its advantages are stable signal transmission, no distortion and high effect on interference.
EXAMPLE III
As shown in fig. 1 to 5, a constant velocity universal joint axial derivation force testing machine comprises a base platform 100, wherein a rotary loading device 200 and a swing angle loading device 300 are arranged on the base platform, a test piece 5 and an accompanying test shaft 6 which are arranged in parallel are connected between the rotary loading device and the swing angle loading device, the rotary loading device 200 is used for driving the test piece to rotate and applying torque to the test piece, the swing angle loading device 300 is used for adjusting the angle of the test piece, the constant velocity universal joint axial derivation force testing machine comprises the constant velocity universal joint axial derivation force measuring device, the rotary loading device comprises a first transmission gear box 201, a second transmission gear box 301 is arranged on the swing angle loading device, one end of the accompanying test shaft is connected with one end of the test piece through the first transmission gear box, the other end of the accompanying test shaft is connected with the constant velocity universal joint axial derivation force measuring device through the second transmission gear box, the constant velocity universal joint axial derivation force measuring device is connected with the other end of the test piece. The rotary loading device 200 comprises a torque loading device 202 and a rotary driving device 203, wherein the torque loading device is connected with the test-accompanying shaft and applies torque to the test-accompanying shaft, and the rotary driving device is connected with the test-accompanying shaft and drives the test-accompanying shaft to rotate. The torque loading device 202 comprises a first servo motor 2021, a primary speed reducer 2022, an input shaft 2023, a rotary driving shaft 2024, a secondary speed reducer 2025 and an output end 2026, wherein the output end is connected with an accompanying test shaft, the rotary driving shaft is connected with a rotary driving device through a synchronous belt pulley 2027, the first servo motor is connected with the input shaft through the primary speed reducer, the input shaft axially penetrates through the rotary driving shaft and is connected with the output end through the secondary speed reducer, and the rotary driving shaft is connected with the output end. Swing angle loading device 300 includes swing slip table 302, sets up circular arc guide rail 303, second servo motor 304 and swing angle sensor 305 on the base platform, swing slip table one end is connected on the base platform through pivot 306, but other end sliding connection is on circular arc guide rail, second servo motor passes through ball screw 307 and is connected with the swing slip table and drive the swing slip table along the swing of circular arc guide rail to the swing angle of adjustment testpieces. Constant velocity universal joint axial derivation power measuring device, including torque sensor 2, rotation axis 3 and the chuck 4 of being connected with constant velocity universal joint test piece 5, chuck 4 passes through torque sensor 2 and is connected with rotation axis 3, be equipped with force measuring device 1 between chuck 4 and the torque sensor 2, force measuring device 1 is including coaxial preceding mounting disc 11 and the back mounting disc 12 that sets up, preceding mounting disc 11 and the coaxial fixed connection of chuck 4, back mounting disc 12 and the coaxial fixed connection of torque sensor 2, connect through a plurality of evenly distributed's force cell 13 between preceding mounting disc 11 and the back mounting disc 12, torque sensor 2 coaxial coupling is to the front end of rotation axis 3. The load cells 13 comprise 4 load cells 13 which are distributed between the front mounting plate 11 and the rear mounting plate 12 in a square shape. The rotating shaft is connected with the gear in the second gear box.
The novel sensor structure is connected in series to a test system to rotate synchronously with a test piece, and axial derivative force is measured in the state, so that the axial derivative force measuring device has the advantages of high measurement precision and simple mechanical structure; furthermore, a sensor group is designed, four sensors are arranged on a force measuring surface in a square mode, and the lateral force of the sensors under the action of torque is reduced by utilizing a couple effect; the triaxial force sensor is adopted, so that the sensor can bear certain lateral force without influencing the measured axial force.
Example four
As shown in fig. 1 to 5, a constant velocity universal joint axial derivation force testing machine comprises a base platform 100, wherein a rotary loading device 200 and a swing angle loading device 300 are arranged on the base platform, a test piece 5 and an accompanying test shaft which are arranged in parallel are connected between the rotary loading device and the swing angle loading device, the rotary loading device 200 is used for driving the test piece to rotate and applying torque to the test piece, the swing angle loading device 300 is used for adjusting the angle of the test piece, the constant velocity universal joint axial derivation force testing machine comprises the constant velocity universal joint axial derivation force measuring device, the rotary loading device comprises a first transmission gear box 201, a second transmission gear box 301 is arranged on the swing angle loading device, one end of the accompanying test shaft is connected with one end of the test piece through the first transmission gear box, the other end of the accompanying test shaft is connected with the constant velocity universal joint axial derivation force measuring device through the second transmission gear box, the constant velocity universal joint axial derivation force measuring device is connected with the other end of the test piece. The rotary loading device 200 comprises a torque loading device 202 and a rotary driving device 203, wherein the torque loading device is connected with the test-accompanying shaft and applies torque to the test-accompanying shaft, and the rotary driving device is connected with the test-accompanying shaft and drives the test-accompanying shaft to rotate. The torque loading device 202 comprises a first servo motor 2021, a primary speed reducer 2022, an input shaft 2023, a rotary driving shaft 2024, a secondary speed reducer 2025 and an output end 2026, wherein the output end is connected with an accompanying test shaft, the rotary driving shaft is connected with a rotary driving device through a synchronous belt pulley 2027, the first servo motor is connected with the input shaft through the primary speed reducer, the input shaft axially penetrates through the rotary driving shaft and is connected with the output end through the secondary speed reducer, and the rotary driving shaft is connected with the output end. Swing angle loading device 300 includes swing slip table 302, sets up circular arc guide rail 303, second servo motor 304 and swing angle sensor 305 on the base platform, swing slip table one end is connected on the base platform through pivot 306, but other end sliding connection is on circular arc guide rail, second servo motor passes through ball screw 307 and is connected with the swing slip table and drive the swing slip table along the swing of circular arc guide rail to the swing angle of adjustment testpieces. Constant velocity universal joint axial derivation power measuring device, including torque sensor 2, rotation axis 3 and the chuck 4 of being connected with constant velocity universal joint test piece 5, chuck 4 passes through torque sensor 2 and is connected with rotation axis 3, be equipped with force measuring device 1 between chuck 4 and the torque sensor 2, force measuring device 1 is including coaxial preceding mounting disc 11 and the back mounting disc 12 that sets up, preceding mounting disc 11 and the coaxial fixed connection of chuck 4, back mounting disc 12 and the coaxial fixed connection of torque sensor 2, connect through a plurality of evenly distributed's force cell 13 between preceding mounting disc 11 and the back mounting disc 12, torque sensor 2 coaxial coupling is to the front end of rotation axis 3. The load cells 13 comprise 4 load cells 13 which are distributed between the front mounting plate 11 and the rear mounting plate 12 in a square shape. The rotating shaft is connected with the gear in the second gear box. The rear mounting disc 12 and the torque sensor 2 are coaxially provided with a connecting piece 14, the axis of the connecting piece 14 is provided with a through hole 141 communicated with an axial channel in the rotating shaft, the connecting piece is also provided with a plurality of radial connecting holes 142, and a data wire of the force measuring sensor enters the axial channel of the rotating shaft through the connecting holes and the through holes in sequence. Wireless transmission is an ideal solution, and the technology is mature along with the development of domestic sensor technology. However, in practical application, the problem of interference cannot be solved, and the transmission rate is too low to be applied in this scenario. Therefore, in the present embodiment, a wired transmission scheme is adopted, and compared with a wireless transmission scheme, the wired transmission scheme is to transmit signals through an electrical slip ring. Its advantages are stable signal transmission, no distortion and high effect on interference.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention disclosed herein are intended to be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The utility model provides a constant velocity cardan joint axial derivation force measuring device, includes torque sensor, rotation axis and the chuck of being connected with the constant velocity cardan joint test piece, the chuck passes through torque sensor and is connected with the rotation axis, its characterized in that, be equipped with measuring force device between chuck and the torque sensor, measuring force device is including the preceding mounting disc and the back mounting disc of coaxial setting, preceding mounting disc and chuck coaxial coupling, back mounting disc and torque sensor coaxial coupling, connect through a plurality of evenly distributed's force cell between preceding mounting disc and the back mounting disc, torque sensor coaxial coupling is to the rotation axis front end.
2. The constant velocity universal joint axial derivative force measurement device of claim 1, wherein an axial channel is provided in said rotating shaft for passage of a load cell data line.
3. The constant velocity universal joint axial derived force measuring device according to claim 2, wherein said rotating shaft is provided at a rear end thereof with an electrical slip ring connected to a data line, said electrical slip ring being slidably connected to a data receiving end.
4. The constant velocity joint axial derived force measurement device of claim 1, wherein said load cell comprises 4 load cells distributed in a square between a front mounting plate and a rear mounting plate.
5. The constant velocity universal joint axial derived force measuring device according to claim 4, wherein said load cell is a triaxial force sensor for enabling the load cell itself to withstand a certain lateral force without affecting the measured axial force.
6. The device for measuring the axial derivative force of the constant velocity universal joint according to any one of claims 1 to 5, wherein a connecting member is coaxially arranged between the rear mounting plate and the torque sensor, the axis of the connecting member is provided with a through hole communicated with the axial channel of the rotating shaft, the connecting member is further provided with a plurality of radial connecting holes, and the data wire of the load cell enters the axial channel of the rotating shaft through the connecting holes and the through hole in sequence.
7. A constant velocity universal joint axial derived force testing machine comprises a base platform, wherein a rotary loading device and a swing angle loading device are arranged on the base platform, a test piece and an accompanying test shaft which are arranged in parallel are connected between the rotary loading device and the swing angle loading device, the rotary loading device is used for driving the test piece to rotate and applying torque to the test piece, and the swing angle loading device is used for adjusting the angle of the test piece, the constant velocity universal joint axial derived force testing machine is characterized by comprising the constant velocity universal joint axial derived force measuring device as claimed in any one of claims 1 to 5, the rotary loading device comprises a first transmission gear box, a second transmission gear box is arranged on the swing angle loading device, one end of the accompanying test shaft is connected with one end of the test piece through the first transmission gear box, the other end of the accompanying test shaft is connected with the constant velocity universal joint axial derived force measuring device through the second transmission gear box, the constant velocity universal joint axial derivation force measuring device is connected with the other end of the test piece.
8. The constant velocity universal joint axial derivative force testing machine according to claim 7, wherein the rotation loading device comprises a torque loading device and a rotation driving device, the torque loading device is connected with the test-assistant shaft and applies torque to the test-assistant shaft, and the rotation driving device is connected with the test-assistant shaft and drives the test-assistant shaft to rotate.
9. The constant velocity universal joint axial derivative force testing machine of claim 8, wherein the torque loading device comprises a first servo motor, a primary speed reducer, an input shaft, a rotary driving shaft, a secondary speed reducer and an output end, the output end is connected with the test-assisting shaft, the rotary driving shaft is connected with the rotary driving device through a synchronous belt pulley, the first servo motor is connected with the input shaft through the primary speed reducer, the input shaft axially penetrates through the rotary driving shaft and is connected with the output end through the secondary speed reducer, and the rotary driving shaft is connected with the output end.
10. The constant velocity universal joint axial derivative force testing machine of claim 7, characterized in that, the pivot angle loading device includes swing slip table, set up circular arc guide rail, second servo motor and the pivot angle sensor on the base platform, swing slip table one end is connected on the base platform through the pivot, but other end sliding connection is on circular arc guide rail, second servo motor passes through ball screw and is connected with swing slip table and drive swing slip table along the circular arc guide rail swing.
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| CN202210068764.9A CN114112156A (en) | 2022-01-21 | 2022-01-21 | Constant velocity universal joint axial derivative force measuring device and testing machine |
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Application publication date: 20220301 |