CN113237440A

CN113237440A - Steering intermediate shaft angle measuring device

Info

Publication number: CN113237440A
Application number: CN202110707404.4A
Authority: CN
Inventors: 张祥贞
Original assignee: Dezhou Hengrui Intelligent Test Equipment Co ltd
Current assignee: Dezhou Hengrui Intelligent Test Equipment Co ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2021-08-10

Abstract

The invention discloses a steering intermediate shaft angle measuring device, relates to the technical field of steering intermediate shafts, and particularly relates to a steering intermediate shaft angle measuring device which comprises a supporting beam and linear guide rails, wherein the linear guide rails are positioned at two ends of the supporting beam and are perpendicular to the central axis of the supporting beam, and one ends of the linear guide rails are provided with sliding blocks matched with the linear guide rails in size. The invention outputs the rotation angle of each part of the steering transmission shaft assembly through the swing arm, drives the grating displacement sensor with the spring reset to move through the swing of the swing arm, converts the swing of the swing arm into the displacement of the grating displacement sensor, calculates the swing angle of the swing arm through mathematical calculation, thereby calculating the swing angle of the test point, calculates the torsion angle gap of each combination point of the transmission shaft assembly through the difference of the point swing angles, converts the angle detection into the detection of linear displacement, facilitates the detection operation, reduces the detection cost, improves the detection efficiency, amplifies the detection result and reduces the detection error.

Description

Steering intermediate shaft angle measuring device

Technical Field

The invention relates to the technical field of radar part production, in particular to a steering intermediate shaft angle measuring device.

Background

With the improvement of the requirements of the steering industry on parts, higher requirements are provided for testing each sub-assembly after the assembly of the intermediate shaft assembly is completed, the clearance of the total component assembly (comprising an upper universal joint assembly, a sliding pair assembly and a lower universal joint assembly) needs to be detected simultaneously after the assembly of the intermediate shaft is completed, and the clearance detection is realized by detecting the rotation angle of the steering intermediate shaft.

At present, the installation of the grating encoder or the coding disc is complex, the assembly and disassembly are inconvenient, the position precision requirement is high, the price is high, the high-precision encoder and the coding disc are of a glass structure, the encoder and the coding disc are extremely easy to damage during the assembly and disassembly, the encoder and the coding disc are expensive, the diameters of two ends of most parts are thick, the middle diameter is small, the encoder or the coding disc cannot be installed at the sliding auxiliary spline and the sliding auxiliary spline sleeve part, and the gap of the middle shaft assembly cannot be tested.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a device for measuring the angle of a steering intermediate shaft, and solves the problems that the existing grating encoder or coding disc is complex to install, inconvenient to assemble and disassemble, high in position precision requirement and price, the high-precision encoder and the coding disc are of glass structures, the encoder and the coding disc are easy to damage during assembling and disassembling, the encoder and the coding disc are expensive, the diameters of two ends of most parts are thick, the diameters of the middle parts are thin, the encoder or the coding disc cannot be installed at the positions of a sliding pair spline and a sliding pair spline sleeve, and the gap of an intermediate shaft sub-assembly cannot be tested.

In order to achieve the purpose, the invention is realized by the following technical scheme: turn to jackshaft angle measuring device, including a supporting beam to and be located a supporting beam both ends and with the perpendicular linear guide who sets up of a supporting beam axis, linear guide's one end is equipped with the slider with linear guide size complex, be equipped with the backing plate on the slider, the backing plate passes through the bolt fastening on a supporting beam, linear guide's the other end is equipped with the frid that sets up perpendicular with linear guide, be equipped with on the frid and turn to the jackshaft.

Optionally, the epaxial four slides that are equipped with a supporting beam size complex of supporting beam to and with slide one-to-one and mutually perpendicular's No. four sensor support, No. three sensor support, No. two sensor support and a sensor support, and be equipped with respectively with No. four sensor support, No. three sensor support, No. two sensor support and a sensor support one-to-one and fixed connection's No. four grating displacement sensor, No. three grating displacement sensor, No. two grating displacement sensor and a grating displacement sensor, and four scale pins.

Optionally, a first swing arm, a second swing arm, a third swing arm and a fourth swing arm are arranged in parallel in the axial direction of the steering intermediate shaft, and a transition sleeve is arranged in the second swing arm.

Optionally, the steering intermediate shaft comprises a torsion driving mechanism, an upper universal joint, a sliding auxiliary spline sleeve, a lower universal joint and a fixing mechanism, the output end of the torsion driving mechanism is connected with the upper universal joint, the output end of the upper universal joint is connected with the sliding auxiliary spline, the output end of the sliding auxiliary spline is connected with the lower universal joint, and the fixing mechanism is perpendicular to the lower universal joint and is movably connected with the lower universal joint.

Optionally, the heights of the fourth grating displacement sensor, the third grating displacement sensor, the second grating displacement sensor and the first grating displacement sensor are unchanged when the displacement is detected, and the trigonometric function calculation formula is used for calculating the swing angles of the first swing arm, the second swing arm, the third swing arm and the fourth swing arm.

The invention provides a steering intermediate shaft angle measuring device, which has the following beneficial effects:

1. this turn to jackshaft angle measuring device's purpose provides an operation simply, low price's angle measurement mode, because of turning to the jackshaft in the testing process, one end is fixed, the other end drive is to setting for the moment of torsion, its turned angle can not exceed 1, press from both sides the swing arm on the test position of test part, the rotation of part drives the swing arm and rotates together, the rotation of swing arm is gone into to the detection head through grating displacement sensor, convert the flexible displacement that grating displacement sensor detected the head into, through mathematical transformation, convert into the pivot angle with the displacement that grating displacement sensor detected again, can test the corner that the jackshaft divides the assembly.

2. This turn to jackshaft angle measuring device converts the angle detection into linear displacement's detection, has made things convenient for the operation that detects, has reduced the detection cost, has improved detection efficiency, has enlarged the testing result, has reduced detection error.

3. The device for measuring the angle of the steering intermediate shaft outputs the rotation angle of each part of the steering transmission shaft assembly through the swing arm, the grating displacement sensor with the spring reset is pushed to move through the swing of the swing arm, the swing of the swing arm is converted into the displacement of the grating displacement sensor, the swing angle of the swing arm is calculated through mathematical calculation, so that the swing angle of a test point is calculated, and the torsion angle gap of each joint point of the transmission shaft assembly is calculated through the difference of the point swing angles.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic structural view of a swing arm according to the present invention;

FIG. 3 is a schematic structural view of a transition sleeve according to the present invention;

fig. 4 is a schematic view of the swing state of the swing arm according to the present invention.

In the figure: 1. a linear guide rail; 2. a slider; 3. a base plate; 4. a support beam; 5. a cylinder connecting plate; 6. a push cylinder; 7. a slide plate; 8. a sensor bracket No. four; 9. a swing arm scale; 10. a fourth grating displacement sensor; 11. a third grating displacement sensor; 12. a sensor bracket No. three; 13. a second grating displacement sensor; 14. a second sensor support; 15. a first grating displacement sensor; 16. (ii) a A scale pin 17 and a first sensor bracket; 18. a first swing arm; 19. a second swing arm; 20. a transition sleeve; 21. a third swing arm; 22. a fourth swing arm; 23. a steering intermediate shaft; 2301. a torsion drive mechanism; 2302. an upper gimbal; 2303. sliding the secondary spline; 2304. sliding the auxiliary spline housing; 2305. a lower gimbal; 2306. and a fixing mechanism.

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.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Embodiment 1

Referring to fig. 1 to 3, the present invention provides a technical solution: a steering intermediate shaft angle measuring device comprises a supporting beam 4, linear guide rails 1 which are positioned at two ends of the supporting beam 4 and are arranged perpendicular to the central axis of the supporting beam 4, a sliding block 2 which is matched with the linear guide rails 1 in size is arranged at one end of each linear guide rail 1, a backing plate 3 is arranged on each sliding block 2, each backing plate 3 is fixed on the supporting beam 4 through bolts, four sliding plates 7 which are matched with the supporting beam 4 in size are arranged on the supporting beam 4, four sensor supports 8, three sensor supports 12, two sensor supports 14 and a first sensor support 16 which are in one-to-one correspondence with the sliding plates 7 and are perpendicular to each other, four grating displacement sensors 10, three grating displacement sensors 11, two grating displacement sensors 13 and a first grating displacement sensor 15 which are in one-to-one correspondence with the four sensor supports 8, three sensor supports 12, two sensor supports 14 and the first sensor support 16 and are fixedly connected with each other, and four scale pins 17, a first grating displacement sensor 15, a second grating displacement sensor 13, a third grating displacement sensor 11 and a fourth grating displacement sensor 10 are respectively arranged on a first sensor bracket 16, a second sensor bracket 14, a third sensor bracket 12 and a fourth sensor bracket 8 and are fixed on the supporting beam 4 through four sliding plates 7, the sliding plates 7 can move to adapt to the gap measurement of the steering intermediate shafts with different lengths,

example II

In the invention, referring to fig. 1-3, a slotted plate perpendicular to the linear guide rail 1 is arranged at the other end of the linear guide rail 1, a steering intermediate shaft 23 is arranged on the slotted plate, a first swing arm 18, a second swing arm 19, a third swing arm 21 and a fourth swing arm 22 which are arranged in parallel are arranged in the axial direction of the steering intermediate shaft 23, a transition sleeve 20 is arranged in the second swing arm 19, the steering intermediate shaft 23 comprises a torsion driving mechanism 2301, an upper universal joint 2302, a sliding auxiliary spline 2303, a sliding auxiliary spline housing 2304, a lower universal joint 2305 and a fixing mechanism 2306, the output end of the torsion driving mechanism 2301 is connected with the upper universal joint 2302, the output end of the upper universal joint is connected with the sliding auxiliary spline 2303, the output end of the sliding auxiliary spline 2303 is connected with the lower universal joint 2305 and the fixing mechanism 2306 perpendicular to and movably connected with the lower universal joint 2305.

Optionally, when the fourth grating displacement sensor 10, the third grating displacement sensor 11, the second grating displacement sensor 13 and the first grating displacement sensor 15 detect displacement, the heights of the first grating displacement sensor, the third grating displacement sensor and the first grating displacement sensor are unchanged, and the triangular function calculation formulas are used for calculating the swing angles of the first swing arm 18, the second swing arm 19, the third swing arm 21 and the fourth swing arm 22;

calculating a first torsion angle of the first swing arm 18 through the displacement of the first grating displacement sensor 15; calculating a second torsion angle of the second swing arm 19 through the displacement of the second grating displacement sensor 13; calculating a third torsion angle of the third swing arm 21 through the displacement of the third grating displacement sensor 11; calculating a fourth torsion angle of the fourth swing arm 22 through the displacement of the fourth grating displacement sensor 10; the first torsion angle minus the second torsion angle is the torsion clearance of the universal joint A2 on the steering intermediate shaft, the second torsion angle minus the third torsion angle is the clearance between the upper universal joint 2302 and the sliding auxiliary spline 2303, the third torsion angle minus the fourth torsion angle is the clearance of the lower universal joint 2305, and the first torsion angle minus the fourth torsion angle is the clearance of the steering intermediate shaft 23;

under the set torque, the rigidity of the steering intermediate shaft 23 assembly can be calculated by subtracting the relation between the fourth torsion angle and the torsion torque from the first torsion angle; under the condition of setting the torque, the relation between the first torsion angle minus the second torsion angle and the torsion torque can calculate the rigidity of the upper universal joint 2302; under the set torque, the rigidity of the sliding pair spline 2303 can be calculated by subtracting the relation between the third torsion angle and the torsion torque from the second torsion angle; under the set torque, the rigidity of the lower universal joint 2305 can be calculated by subtracting the relation between the fourth torsion angle and the torsion torque from the third torsion angle;

in order to ensure that the detection heads of the first grating displacement sensor 15, the second grating displacement sensor 13, the third grating displacement sensor 11 and the fourth grating displacement sensor 10 are pushed down to the working position by the pushing cylinder 6 through the supporting beam 4, the detection heads are compressed to the middle position when contacting with the first swing arm 18, the second swing arm 19, the third swing arm 21 and the fourth swing arm 22, the swing arm scale 9 is used for calibrating the initial positions of the first swing arm 18, the second swing arm 19, the third swing arm 21 and the fourth swing arm 22 when the swing arm is clamped on the steering intermediate shaft 23, the swing arm scale 9 is hung on the front end positions of the swing arm 9 on the fourth sensor support 8, the third sensor support 12, the second sensor support 14 and the first sensor support 16, the first swing arm 18, the second swing arm 19, the third swing arm 21 and the fourth swing arm 22 are respectively contacted, and the first swing arm 18, the second swing arm 19, the third swing arm 21 and the fourth swing arm 22 are respectively positioned at the front end positions of the scale 9, A second swing arm 19, a third swing arm 21 and a fourth swing arm 22 are fixed on the transmission intermediate shaft, and a first torsion angle of a first swing arm 18 is converted into displacement of a first grating displacement sensor 15; converting the second torsion angle of the second swing arm 19 into the displacement of the second grating displacement sensor 13; converting the third torsion angle of the third swing arm 21 into the displacement of the third grating displacement sensor 11; and the fourth torsion angle of the fourth swing arm 22 is converted into the fourth grating displacement sensor 10.

Example three

In the invention, referring to fig. 4, a rotation torsion driving mechanism 2301 drives a steering intermediate shaft 23 assembly to twist, a first swing arm 18, a second swing arm 19, a third swing arm 21 and a fourth swing arm 22 rotate along with fixed parts, and detection heads of a first grating displacement sensor 15, a second grating displacement sensor 13, a third grating displacement sensor 11 and a fourth grating displacement sensor 10 extend and compress along with the rotation of the first swing arm 18, the second swing arm 19, the third swing arm 21 and the fourth swing arm 22 in the positive and negative directions to form a track as shown in fig. 4.

The swing arm is at OA position when the test starts initially, the measuring head of the displacement sensor is pressed against at point A, the swing arm arrives at OC position when rotating to the set torque in the forward direction, the rotated angle is < a, the swing arm arrives at OB position when rotating to the set torque in the reverse direction, the rotated angle is < b, then the rotated angle from the forward set torque to the reverse set torque is < c:

∠a＝arctg(AE/OA)

∠b＝arctg(AF/OA)

∠c＝∠a+∠b。

in conclusion, in the device for measuring the angle of the steering intermediate shaft, during testing, the pushing cylinder 6 advances, the spring-return detection heads of the first grating displacement sensor 15, the second grating displacement sensor 13, the third grating displacement sensor 11 and the fourth grating displacement sensor 10 respectively push against the first swing arm 18, the second swing arm 19, the third swing arm 21 and the fourth swing arm 22, and retract the four sensor detection heads to the middle positions corresponding to the first grating displacement sensor 15, the second grating displacement sensor 13, the third grating displacement sensor 11 and the fourth grating displacement sensor 10 one by one, the lower universal joint 2305 is connected with the fixing mechanism 2306 and fixed, the steering intermediate shaft 23 is twisted along with the forward and reverse directions of the torsion driving mechanism 2301, the first swing arm 18, the second swing arm 19, the third swing arm 21 and the fourth swing arm 22 are fixed on the members of the steering intermediate shaft 23 which are opposite to each other, also can be along with each component swing, along with a swing arm 18, No. two swing arms 19, No. three swing arms 21, No. four swing arms 22 swings, grating displacement sensor 15, No. two grating displacement sensor 13, No. three grating displacement sensor 11 and No. four grating displacement sensor 10's detection head also can be compressed and popped out, a swing arm 18, No. two swing arms 19, No. three swing arms 21, No. four swing arms 22 swing angle has also been transformed into a grating displacement sensor 15, No. two grating displacement sensor 13, No. three grating displacement sensor 11 and No. four grating displacement sensor 10's displacement and has been detected, in order to detect the steering jackshaft of different diameters, can use transition cover 20 in the swing arm chuck.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.

Claims

1. Turn to jackshaft angle measuring device, including supporting beam (4) to and be located supporting beam (4) both ends and with supporting beam (4) axis vertical setting's linear guide (1), its characterized in that: the one end of linear guide (1) is equipped with slider (2) with linear guide (1) size complex, be equipped with backing plate (3) on slider (2), backing plate (3) pass through the bolt fastening on a supporting beam (4), the other end of linear guide (1) is equipped with the frid that sets up with linear guide (1) is perpendicular, be equipped with on the frid and turn to jackshaft (23).

2. The steering intermediate shaft angle measuring device according to claim 1, characterized in that: the epaxial four slide (7) that are equipped with supporting beam (4) size complex of supporting beam (4) to and with slide (7) one-to-one and mutually perpendicular's No. four sensor support (8), No. three sensor support (12), No. two sensor support (14) and a sensor support (16), and be equipped with respectively with No. four sensor support (8), No. three sensor support (12), No. two sensor support (14) and a sensor support (16) one-to-one and fixed connection's No. four grating displacement sensor (10), No. three grating displacement sensor (11), No. two grating displacement sensor (13) and a grating displacement sensor (15), and four scale round pins (17).

3. The steering intermediate shaft angle measuring device according to claim 1, characterized in that: a first swing arm (18), a second swing arm (19), a third swing arm (21) and a fourth swing arm (22) which are arranged in parallel are axially arranged on the steering intermediate shaft (23), and a transition sleeve (20) is arranged in the second swing arm (19).

4. The steering intermediate shaft angle measuring device according to claim 1, characterized in that: the steering intermediate shaft (23) comprises a torsion driving mechanism (2301), an upper universal joint (2302), a sliding auxiliary spline (2303), a sliding auxiliary spline sleeve (2304), a lower universal joint (2305) and a fixing mechanism (2306), the output end of the torsion driving mechanism (2301) is connected with the upper universal joint (2302), the output end of the upper universal joint (2302) is connected with the sliding auxiliary spline (2303), the output end of the sliding auxiliary spline (2303) is connected with the lower universal joint (2305) and the fixing mechanism (2306) which is perpendicular to the lower universal joint (2305) and is movably connected with the lower universal joint (2305).

5. The steering intermediate shaft angle measuring device according to claim 1, characterized in that: and the height of the fourth grating displacement sensor (10), the third grating displacement sensor (11), the second grating displacement sensor (13) and the first grating displacement sensor (15) is unchanged when the displacement is detected, and the fourth grating displacement sensor is used for calculating the swing angles of the first swing arm (18), the second swing arm (19), the third swing arm (21) and the fourth swing arm (22) through a trigonometric function calculation formula.