An Angle Real-time Measurement Device and Measurement Method for a Turntable Mechanism

Abstract

The present invention discloses a real-time angle measurement device and method for a turntable mechanism, relating to the field of wind tunnel testing technology. The measurement device includes a magnetic strip, a fixed mounting bracket, an adaptive adjustment bracket, a reading head, and a distance component. The magnetic strip is coaxially sleeved outside the turntable to be measured; the fixed mounting bracket is fixedly connected to the external environment; the adaptive adjustment bracket is elastically connected to the fixed mounting bracket via an elastic component, so that the adaptive adjustment bracket can elastically displace and / or elastically swing based on the fixed mounting bracket; the reading head is disposed on the adaptive adjustment bracket, with the detection end of the reading head facing the magnetic strip; the distance component is disposed on the adaptive adjustment bracket; when the elastic component is in a natural state, the distance component abuts and rigidly squeezes the outer wall of the magnetic strip, and the distance between the detection end of the reading head and the magnetic strip is a preset distance. This device can solve the problem of being unable to stably, efficiently, in real time, and accurately measure the real-time angle of the turntable.

Description

Technical Field

[0001] The present invention relates to the technical field of wind tunnel testing, and in particular to a real-time angle measurement device and method for a turntable mechanism. Background Art

[0002] In wind tunnel tests, the turntable support mechanism is the main support mechanism for test models such as aircraft half-models, trains, rockets, and cars. During wind tunnel force or pressure tests, the turntable support mechanism controls the beta angle of the test model by rotating the angle. It is necessary to combine the beta angle of the test model with its corresponding force and pressure measurement data to output the test results and obtain accurate wind tunnel test data at the correct model angle. The real-time beta angle of the model can be obtained by adding the real-time angle of the turntable support mechanism and the model installation deflection angle. The model installation deflection angle remains fixed during the test and is easy to measure with a laser theodolite. Therefore, obtaining the accurate real-time beta angle of the model, that is, obtaining the accurate real-time angle of the turntable support mechanism, is particularly important for the accuracy of the test model angle control and the accuracy of the test model force and pressure measurement data.

[0003] The turntable support mechanism is controlled by a servo motor, and the motor encoder feeds back the angle signal as the control signal. The signal source is single and lacks data comparison. When the turntable is running and the accuracy is low, the precision is insufficient, or the motor encoder becomes loose or fails, there is no efficient real-time observation method. Summary of the Invention

[0004] The object of the present invention is to provide a real-time angle measurement device for a turntable mechanism to solve the problem that the real-time angle of the turntable cannot be measured stably, efficiently, in real time and accurately.

[0005] The present invention is achieved through the following technical solutions:

[0006] A real-time angle measurement device for a turntable mechanism, comprising: a magnetic strip, which is in a ring shape that matches the turntable to be measured, and the magnetic strip is coaxially sleeved on the outside of the turntable to be measured so that the inner surface of the magnetic strip fits the side wall of the turntable; a fixed mounting bracket, which is used to be fixedly connected to the external environment so that the spatial position of the fixed mounting bracket and the turntable to be measured is relatively fixed; an adaptive adjustment bracket, which is elastically connected to the fixed mounting bracket through an elastic component so that the adaptive adjustment bracket can be elastically displaced and / or elastically swung based on the fixed mounting bracket; a reading head, which is provided on the adaptive adjustment bracket, and the detection end of the reading head is set toward the magnetic strip; a distance component, which is provided on the adaptive adjustment bracket; when the elastic component is in a natural state, the distance component abuts and rigidly squeezes the outer wall of the magnetic strip, and the distance between the detection end of the reading head and the magnetic strip is a preset distance.

[0007] Optionally, the fixed mounting bracket is provided with an adjustment slot, the adaptive adjustment bracket is inserted into the adjustment slot, the elastic component is located at the bottom of the adjustment slot, and is clamped between the insertion side of the adaptive adjustment bracket and the bottom of the adjustment slot, so that the adaptive adjustment bracket can be elastically displaced in the depth direction of the adjustment slot; an adjustment gap is reserved between the inner wall of the adjustment slot and the outer wall of the adaptive adjustment bracket, so that the adaptive adjustment bracket can elastically swing in the adjustment slot.

[0008] Optionally, the elastic component includes a pair of pressure rods and a pair of springs, and the springs correspond to the pressure rods one by one; the pressure rods slide with the bottom of the adjustment groove along the depth direction of the adjustment groove, one end of the pressure rod is fixedly connected to the insertion side of the adaptive adjustment bracket, and the other end passes through the bottom of the adjustment groove and is provided with a limit head, the size of the limit head is larger than the diameter of the pressure rod; the spring is coaxially sleeved on the outside of the corresponding pressure rod so that the spring compression clamp is arranged between the insertion side of the adaptive adjustment bracket and the bottom of the adjustment groove.

[0009] Optionally, the distance component includes a pair of rollers, which are rolled on the adaptive adjustment bracket; the axles of the two rollers are arranged in parallel and in parallel with the axial direction of the turntable to be measured; the axial direction of the roller is perpendicular to the groove depth direction of the adjustment groove; the reading head is located between the two rollers; when the wheel surfaces of the two rollers are in contact with the outer wall of the magnetic strip and rigidly squeezed, the distance between the detection end of the reading head and the magnetic strip is a preset distance.

[0010] Optionally, the two rollers are arranged in the same plane; the plane where the axes of the two pressure rods are located is perpendicular to the axial direction of the roller; the plane where the axes of the two pressure rods are located is coplanar with the median plane of the roller surface.

[0011] Optionally, the fixed mounting bracket is concave in shape, the adjustment slot is a rectangular slot, and the adjustment slot is opened on the notch side of the fixed mounting bracket; the adaptive adjustment bracket includes an integrally formed insertion portion and a setting portion, and the width of the insertion portion is smaller than the setting portion, so that the adaptive adjustment bracket is convex in shape; a setting slot is opened on the side of the setting portion away from the insertion portion; the reading head and the roller are both arranged in the setting slot, and the reading head is fixedly connected to the adaptive adjustment bracket by a bolt, and the bolt is screwed in from the side wall of the adaptive adjustment bracket. When the adaptive adjustment bracket is plugged into the fixed mounting bracket, the screw-in hole of the bolt is located in the notch of the fixed mounting bracket.

[0012] Optionally, the distance between the two pressure rods is smaller than the distance between the two rollers; the two pressure rods and the two rollers are symmetrically arranged according to the median plane of the adaptive adjustment bracket.

[0013] Optionally, first cable holes are symmetrically opened on the side walls on opposite sides of the adaptive adjustment bracket, and the line connecting the two first cable holes is arranged parallel to the line connecting the two rollers; second cable holes are symmetrically opened on the side walls on opposite sides of the fixed mounting bracket, and the second cable holes correspond to the first cable holes one by one and are stacked; the hole length of the second cable holes along the depth direction of the adjustment slot is greater than the hole length of the first cable holes in the same direction; the reading head is detachably connected to a plurality of cables, and the cables pass through the first cable holes and the corresponding second cable holes in sequence.

[0014] Optionally, when the adaptive adjustment bracket is plugged into the fixed mounting bracket, the side of the setting portion away from the insertion portion extends out from the adjustment slot; the two ends of the roller axle extend from both sides of the adaptive adjustment bracket respectively, and are located at the part where the setting portion extends out from the adjustment slot, and a preset distance is reserved between the roller axle and the notch of the adjustment slot.

[0015] A method for real-time angle measurement of a turntable mechanism, applicable to any of the above-mentioned real-time angle measurement devices for a turntable mechanism, comprises the following steps:

[0016] Coaxially sleeve the magnetic strip on the outside of the turntable to be tested;

[0017] Fixedly connecting the fixed mounting bracket to the external environment so that the distance component abuts against and rigidly presses against the outer wall of the magnetic strip;

[0018] The reading head is started, and then the turntable to be measured is started, and the real-time angle of the turntable to be measured is measured and recorded by the reading head.

[0019] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0020] The present invention provides a real-time angle measurement device for a turntable mechanism. By arranging a magnetic strip and a reading head, the magnetic strip is coaxially sleeved on the outside of the turntable to be measured, and the reading head is used to measure the magnetic strip in real time, thereby indirectly measuring the angle of the turntable to be measured in real time; by arranging a fixed mounting bracket, an adaptive adjustment bracket and an elastic component, the fixed mounting bracket is used as a fixed structural support, and the adaptive adjustment bracket is installed on the fixed mounting bracket through the elastic component, so that the adaptive adjustment bracket can be elastically displaced and / or elastically swung based on the fixed mounting bracket, so that the reading head arranged on the adaptive adjustment bracket can be displaced and swung to a certain extent; on this basis, by arranging a distance component, so that it is also installed on the adaptive adjustment bracket, so that the relative spatial position of the distance component and the reading head is fixed, and the distance component is used to adjust the outside of the magnetic strip. The wall abuts and rigidly squeezes, so that the distance between the reading head and the magnetic strip is always maintained at a preset distance, so as to further improve the measurement accuracy. At the same time, when the outer wall of the turntable to be measured is not smooth, the rough part will slightly approach or move away from the reading head during the rotation. At this time, with the mutual cooperation of the distance component and the elastic component, the elastic compensation of the elastic component makes the distance component always abut and rigidly squeeze the outer wall of the magnetic strip, so as to ensure that the distance between the two remains unchanged, and then ensure that the distance between the reading head and the magnetic strip remains unchanged, so as to avoid friction caused by the reading head and the magnetic strip being too close, or signal instability caused by the distance being too far. Through the mutual cooperation of the above-mentioned features, the real-time angle measurement device for the turntable mechanism can effectively solve the problem of not being able to stably, efficiently, real-time and accurately measure the real-time angle of the turntable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0022] Figure 1 A schematic diagram of the device for real-time angle measurement of a turntable mechanism provided by an embodiment of the present invention during operation;

[0023] Figure 2 for Figure 1 A partial enlarged view of

[0024] Figure 3 A schematic diagram of a device for real-time angle measurement of a turntable mechanism provided by an embodiment of the present invention;

[0025] Figure 4 A schematic diagram of a fixed mounting bracket for a device for real-time angle measurement of a turntable mechanism provided by an embodiment of the present invention;

[0026] Figure 5 Schematic diagram of an adaptive adjustment bracket for a real-time angle measurement device of a turntable mechanism provided by an embodiment of the present invention.

[0027] Markings and corresponding parts names in the accompanying drawings:

[0028] 10-magnetic strip; 20-fixed mounting bracket; 21-adjustment slot; 22-second cable hole; 30-adaptive adjustment bracket; 31-setting slot; 32-first cable hole; 40-reading head; 41-cable; 50-pressure rod; 501-limit head; 51-spring; 60-roller. DETAILED DESCRIPTION

[0029] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0030] Please refer to Figures 1 to 5 The embodiment of the present invention provides a real-time angle measurement device for a turntable mechanism, comprising: a magnetic strip 10, the magnetic strip 10 being annular and matching the turntable to be measured, the magnetic strip 10 being coaxially sleeved outside the turntable to be measured so that the inner surface of the magnetic strip 10 is in contact with the side wall of the turntable; a second fixed mounting bracket 20, the fixed mounting bracket 20 being fixedly connected to the external environment so that the spatial position of the fixed mounting bracket 20 and the turntable to be measured is relatively fixed; a third adaptive adjustment bracket 30, the adaptive adjustment bracket 30 being connected to the fixed mounting bracket through an elastic component The frame 20 is elastically connected so that the adaptive adjustment bracket 30 can be elastically displaced and / or elastically swung based on the fixed mounting bracket 20; the fourth includes a reading head 40, which is provided on the adaptive adjustment bracket 30, and the detection end of the reading head 40 is set toward the magnetic strip 10; the fifth includes a distance component, which is provided on the adaptive adjustment bracket 30; when the elastic component is in a natural state, the distance component abuts against and rigidly squeezes the outer wall of the magnetic strip 10, and the distance between the detection end of the reading head 40 and the magnetic strip 10 is a preset distance.

[0031] The present embodiment provides a real-time angle measurement device for a turntable mechanism. By arranging a magnetic strip 10 and a reading head 40, the magnetic strip 10 is coaxially mounted on the outside of the turntable to be measured, and the reading head 40 is used to measure the magnetic strip 10 in real time, thereby indirectly measuring the angle of the turntable to be measured in real time; by arranging a fixed mounting bracket 20, an adaptive adjustment bracket 30 and an elastic component, the fixed mounting bracket 20 is used as a fixed structural support, and the adaptive adjustment bracket 30 is installed on the fixed mounting bracket 20 through the elastic component, so that the adaptive adjustment bracket 30 can be elastically displaced and / or elastically swung based on the fixed mounting bracket 20, so that the reading head 40 arranged on the adaptive adjustment bracket 30 can be displaced and swung to a certain extent; on this basis, a distance component is arranged, so that it is also installed on the adaptive adjustment bracket 30, so that the relative spatial position of the distance component and the reading head 40 is fixed, and the distance component is used to adjust the angle of the turntable to be measured. The component abuts against and rigidly squeezes the outer wall of the magnetic stripe 10, so that the distance between the reading head 40 and the magnetic stripe 10 is always maintained at a preset distance, so as to further improve the measurement accuracy. At the same time, when the outer wall of the turntable to be measured is not smooth, the rough part will slightly approach or move away from the reading head 40 during the rotation. At this time, with the mutual cooperation of the distance component and the elastic component, the elastic compensation of the elastic component makes the distance component always abut against and rigidly squeeze the outer wall of the magnetic stripe 10, so as to ensure that the distance between the two remains unchanged, and then ensure that the distance between the reading head 40 and the magnetic stripe 10 remains unchanged, so as to avoid friction caused by the reading head 40 and the magnetic stripe 10 being too close, or signal instability caused by the distance being too far. Through the mutual cooperation of the above-mentioned features, the real-time angle measurement device for the turntable mechanism can effectively solve the problem of not being able to stably, efficiently, real-time and accurately measure the real-time angle of the turntable.

[0032] It should be noted that the above-mentioned preset distance can be adaptively adjusted according to actual conditions. In this embodiment, it is 0.5 mm, with an error of ≤0.2 mm.

[0033] In order to further explain the specific connection structure of the fixed mounting bracket 20, the adaptive adjustment bracket 30 and the elastic component, the fixed mounting bracket 20 is provided with an adjustment slot 21, the adaptive adjustment bracket 30 is inserted into the adjustment slot 21, the elastic component is located at the bottom of the adjustment slot 21, and is clamped between the insertion side of the adaptive adjustment bracket 30 and the bottom of the adjustment slot 21, so that the adaptive adjustment bracket 30 can be elastically displaced in the depth direction of the adjustment slot 21; an adjustment gap is reserved between the inner wall of the adjustment slot 21 and the outer wall of the adaptive adjustment bracket 30, so that the adaptive adjustment bracket 30 can elastically swing in the adjustment slot 21.

[0034] Through the above-mentioned setting, the adjustment gap is used to reserve space for the adaptive adjustment bracket 30 to swing slightly, the groove wall of the adjustment groove 21 is used to limit the swing of the adaptive adjustment bracket 30, and the groove depth of the adjustment groove 21 is used to reserve space for the displacement (towards or away from the magnetic strip 10) of the adaptive adjustment bracket 30.

[0035] In order to further explain the specific structure of the elastic component, the elastic component includes a pair of pressure rods 50 and a pair of springs 51, and the springs 51 correspond to the pressure rods 50 one by one; the pressure rod 50 slides with the bottom of the adjustment groove 21 along the groove depth direction of the adjustment groove 21, and one end of the pressure rod 50 is fixedly connected to the insertion side of the adaptive adjustment bracket 30, and the other end passes through the bottom of the adjustment groove 21 and is provided with a limit head 501, the size of the limit head 501 is larger than the diameter of the pressure rod 50; the spring 51 is coaxially sleeved on the outside of the corresponding pressure rod 50, so that the spring 51 is compressed and clamped between the insertion side of the adaptive adjustment bracket 30 and the bottom of the adjustment groove 21.

[0036] By setting up two pressure rods 50, under the premise of achieving displacement, the downward pressing distances of the two pressure rods 50 can be different at a micro scale, so that the adaptive adjustment bracket 30 can swing at a certain angle at a micro scale; by setting up a limit head 501, utilizing the position limit between the limit head 501 and the fixed mounting bracket 20, the spring 51 can always maintain a certain degree of compression state, thereby ensuring that it can provide appropriate elastic compensation.

[0037] In order to further explain the specific structure of the distance component, the distance component includes a pair of rollers 60, and the rollers 60 are rollingly arranged on the adaptive adjustment bracket 30; the wheel axes of the two rollers 60 are arranged in parallel and in parallel with the axial direction of the turntable to be measured; the axial direction of the roller 60 is perpendicular to the groove depth direction of the adjustment groove 21; the reading head 40 is located between the two rollers 60; when the wheel surfaces of the two rollers 60 are in contact with the outer wall of the magnetic strip 10 and rigidly squeezed, the distance between the detection end of the reading head 40 and the magnetic strip 10 is a preset distance.

[0038] Through the above arrangement, the roller 60 is effectively used to cooperate with the rotation of the turntable to be tested, thereby reducing friction and alleviating wear.

[0039] In order to further improve the force balance performance of the structure, the two rollers 60 are arranged in the same plane; the plane where the axes of the two pressure rods 50 are located is arranged perpendicular to the axial direction of the roller 60; the plane where the axes of the two pressure rods 50 are located is arranged coplanar with the median plane of the wheel surface of the roller 60.

[0040] In order to further explain the specific structure of the fixed mounting bracket 20, the fixed mounting bracket 20 is concave in shape, the adjustment slot 21 is a rectangular slot, and the adjustment slot 21 is opened on the notch side of the fixed mounting bracket 20; the adaptive adjustment bracket 30 includes an integrally formed insertion portion and a setting portion, and the width of the insertion portion is smaller than the setting portion, so that the adaptive adjustment bracket 30 is convex in shape; the setting portion is provided with a setting slot 31 on the side away from the insertion portion; the reading head 40 and the roller 60 are both arranged in the setting slot 31, and the reading head 40 is fixedly connected to the adaptive adjustment bracket 30 by a bolt, and the bolt is screwed in from the side wall of the adaptive adjustment bracket 30. When the adaptive adjustment bracket 30 is plugged into the fixed mounting bracket 20, the screw-in hole of the bolt is located in the notch of the fixed mounting bracket 20.

[0041] Through the above-mentioned arrangement, the convex-shaped adaptive adjustment bracket 30 is inserted upside down into the adjustment slot 21 of the rectangular parallelepiped, which is beneficial for its slight swing while facilitating the threading and accommodation of the cable of the reading head 40. By setting the concave-shaped fixed installation bracket 20, the bolt fixing hole of the reading head 40 is exposed by the notch, freeing up space for screwing the bolt.

[0042] In order to further improve the structural stability, the distance between the two pressure rods 50 is smaller than the distance between the two rollers 60; the two pressure rods 50 and the two rollers 60 are symmetrically arranged according to the median plane of the adaptive adjustment bracket 30.

[0043] In order to further explain the connection method of the reading head 40, the side walls on both sides of the adaptive adjustment bracket 30 are symmetrically provided with first cable holes 32, and the line connecting the two first cable holes 32 is arranged parallel to the line connecting the two rollers 60; the side walls on both sides of the fixed installation bracket 20 are symmetrically provided with second cable holes 22, and the second cable holes 22 correspond to the first cable holes 32 one by one and are stacked; the hole length of the second cable holes 22 along the depth direction of the adjustment slot 21 is greater than the hole length of the first cable holes 32 in the same direction; the reading head 40 is detachably connected to a plurality of cables 41, and the cables 41 pass through the first cable holes 32 and the corresponding second cable holes 22 in turn.

[0044] Through the above arrangement, the first cable arrangement hole 32 and the second cable arrangement hole 22 cooperate with the convex-shaped adaptive adjustment bracket 30 inserted upside down in the adjustment slot 21 to allow the cable 41 to pass through smoothly. Moreover, when the adaptive adjustment bracket 30 and the fixed installation bracket 20 are relatively displaced or swung, the first cable arrangement hole 32 and the second cable arrangement hole 22 will not exert shear force on the cable 41.

[0045] In order to further optimize the limiting position, when the adaptive adjustment bracket 30 is plugged into the fixed mounting bracket 20, the side of the setting portion away from the insertion portion extends out from the adjustment slot 21; the two ends of the axle of the roller 60 extend from both sides of the adaptive adjustment bracket 30 respectively, and are located at the part where the setting portion extends from the adjustment slot 21, and a preset distance is reserved between the axle of the roller 60 and the notch of the adjustment slot 21.

[0046] Through the above arrangement, on the one hand, it is convenient to install the roller 60, and on the other hand, the axle of the roller 60 can also contact and limit the notch of the adjustment slot 21, thereby preventing the adaptive adjustment bracket 30 from excessively displacing and embedding into the adjustment slot 21, causing damage to the elastic component.

[0047] This embodiment further provides a method for real-time angle measurement of a turntable mechanism, which is applicable to any of the above-mentioned real-time angle measurement devices for a turntable mechanism, and includes the following steps:

[0048] S1. Coaxially sleeve the magnetic strip 10 on the outside of the turntable to be tested;

[0049] S2. Fixedly connect the fixed mounting bracket 20 to the external environment so that the distance component abuts against the outer wall of the magnetic strip 10 and is rigidly squeezed;

[0050] S3, starting the reading head 40, and then starting the turntable to be measured, and measuring and recording the real-time angle of the turntable to be measured by the reading head 40.

[0051] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A real-time angle measurement device for a turntable mechanism, characterized in that: include: A magnetic strip, the magnetic strip being annular and matching the turntable to be tested, the magnetic strip being coaxially sleeved outside the turntable to be tested so that the inner surface of the magnetic strip is in contact with the side wall of the turntable; A fixed mounting bracket, the fixed mounting bracket being used to be fixedly connected to the external environment so that the spatial position of the fixed mounting bracket and the turntable to be measured is relatively fixed; an adaptive adjustment bracket, wherein the adaptive adjustment bracket is elastically connected to the fixed mounting bracket via an elastic component, so that the adaptive adjustment bracket can elastically displace and / or elastically swing based on the fixed mounting bracket; A reading head, the reading head is arranged on the adaptive adjustment bracket, and the detection end of the reading head is arranged toward the magnetic strip; A distance component, the distance component is provided on the adaptive adjustment bracket; When the elastic component is in a natural state, the distance component abuts against the outer wall of the magnetic strip and is rigidly squeezed, and the distance between the detection end of the reading head and the magnetic strip is a preset distance; The fixed mounting bracket is provided with an adjustment slot, the adaptive adjustment bracket is inserted into the adjustment slot, the elastic component is located at the bottom of the adjustment slot and is sandwiched between the insertion side of the adaptive adjustment bracket and the bottom of the adjustment slot, so that the adaptive adjustment bracket can be elastically displaced in the depth direction of the adjustment slot; An adjustment gap is reserved between the inner wall of the adjustment slot and the outer wall of the adaptive adjustment bracket, so that the adaptive adjustment bracket can elastically swing in the adjustment slot; The elastic component includes a pair of pressure rods and a pair of springs, and the springs correspond to the pressure rods one by one; The pressure rod is slidably engaged with the bottom of the adjustment groove along the depth direction of the adjustment groove, one end of the pressure rod is fixedly connected to the insertion side of the adaptive adjustment bracket, and the other end passes through the bottom of the adjustment groove and is provided with a limit head, the size of the limit head is larger than the diameter of the pressure rod; The spring is coaxially sleeved on the corresponding pressure rod so that the spring compression clamp is arranged between the insertion side of the adaptive adjustment bracket and the bottom of the adjustment slot; The distance component includes a pair of rollers, and the rollers are rotatably arranged on the adaptive adjustment bracket; The axles of the two rollers are arranged in parallel and parallel to the axial direction of the turntable to be tested; The axial direction of the roller is perpendicular to the depth direction of the adjustment groove; The reading head is located between the two rollers; When the wheel surfaces of the two rollers are in contact with the outer wall of the magnetic strip and rigidly squeezed, the distance between the detection end of the reading head and the magnetic strip is a preset distance.

2. The real-time angle measurement device for a turntable mechanism according to claim 1, characterized in that: The two rollers are arranged coplanarly; The plane where the axes of the two pressure rods are located is perpendicular to the axial direction of the roller; The plane where the axes of the two pressure rods are located is coplanar with the median plane of the roller surface.

3. The real-time angle measurement device for a turntable mechanism according to claim 2, characterized in that: The fixed mounting bracket is concave-shaped, and the adjustment slot is a rectangular parallelepiped slot, and the adjustment slot is opened on the notch side of the fixed mounting bracket; The adaptive adjustment bracket includes an inserting portion and a setting portion formed in one piece, wherein the width of the inserting portion is smaller than that of the setting portion, so that the adaptive adjustment bracket is in a convex shape; A setting groove is formed on a side of the setting portion away from the insertion portion; The reading head and the roller are both arranged in the setting groove, and the reading head is fixedly connected to the adaptive adjustment bracket by a bolt, and the bolt is screwed in from the side wall of the adaptive adjustment bracket. When the adaptive adjustment bracket is plugged into the fixed mounting bracket, the screw-in hole of the bolt is located in the recess of the fixed mounting bracket.

4. The real-time angle measurement device for a turntable mechanism according to claim 3, characterized in that: The distance between the two pressure rods is smaller than the distance between the two rollers; The two pressure rods and the two rollers are symmetrically arranged according to the median plane of the adaptive adjustment bracket.

5. The real-time angle measurement device for a turntable mechanism according to claim 3, characterized in that: The side walls of the adaptive adjustment bracket on both sides opposite to each other are symmetrically provided with first cable arrangement holes, and the line connecting the two pairs of the first cable arrangement holes is arranged parallel to the line connecting the two rollers; The side walls of the fixed mounting bracket on both sides opposite to each other are symmetrically provided with second cable routing holes, and the second cable routing holes correspond to the first cable routing holes one by one and are overlapped; The length of the second cable routing hole in the depth direction of the adjustment slot is greater than the length of the first cable routing hole in the same direction; The reading head is detachably connected to a plurality of cables, and the cables pass through the first cable arrangement hole and the corresponding second cable arrangement hole in sequence.

6. The real-time angle measurement device for a turntable mechanism according to claim 3, characterized in that: When the adaptive adjustment bracket is plugged into the fixed mounting bracket, the side of the setting portion away from the insertion portion extends out of the adjustment slot; Both ends of the axle of the roller extend from both sides of the adaptive adjustment bracket respectively and are located at the portion where the setting portion extends from the adjustment slot. A preset distance is reserved between the axle of the roller and the notch of the adjustment slot.

7. A method for real-time angle measurement of a turntable mechanism, applicable to the real-time angle measurement device for a turntable mechanism according to any one of claims 1 to 6, characterized in that: The steps include: Coaxially sleeve the magnetic strip on the outside of the turntable to be tested; Fixedly connecting the fixed mounting bracket to the external environment so that the distance component abuts against and rigidly presses against the outer wall of the magnetic strip; The reading head is started, and then the turntable to be measured is started, and the real-time angle of the turntable to be measured is measured and recorded by the reading head.

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