Rotation vibration simulation device

Abstract

The invention relates to the technical field of drilling well deviation simulation, in particular to a rotary vibration simulation device, which is used for solving the problem that the influence of a drilling environment on a measuring device is not easy to verify, and comprises a base, an angle table is mounted on the base, a motor is fixedly connected to the angle table, and a PCB (Printed Circuit Board) to be tested is mounted at the output end of the motor; a first inserting rod and a second inserting rod are inserted into the two ends of the base respectively, a first inserting hole matched with the first inserting rod is formed in one end of the angle table, and a plurality of angle adjusting holes matched with the second inserting rod are formed in the other end of the angle table and the other end of the base. A first conical ring is arranged at one end of the second insertion rod, and a second conical ring is slidably connected to the other end; the device can simulate the drilling state, facilitates the understanding of the measurement error of the measurement device in the state, and provides a reference for drilling parameters.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drilling inclination simulation, in particular to a rotary vibration simulation device. BACKGROUND

[0002] With the continuous expansion and in-depth of the field of oil exploration and development, deep oil and gas resources gradually become the strategic replacement area of energy. However, in the process of drilling in deep formation, the well deviation problem caused by the complex geological conditions such as high and steep structure in front of the mountain, large dip angle formation and the like seriously restricts the drilling efficiency and well quality, and the problem of preventing deviation and drilling straight has always been an important challenge for drilling engineering. The application of vertical drilling technology not only can actively and timely prevent the wellbore from deviating, but also can effectively release the drilling pressure and torque borne by the drill bit, greatly improving the drilling efficiency and safety.

[0003] The accuracy of well deviation control in vertical drilling depends on the real-time accurate measurement of well deviation, and the real-time measurement of well deviation can be divided into static measurement and dynamic measurement. The two measurement methods are respectively applied to static sliding push and dynamic rotary push automatic vertical drilling systems, and the well deviation is measured by using a gravity accelerometer. Since the process of dynamic measurement of well deviation is relatively complex and difficult, at present, most vertical drilling systems use the static inclination measurement method, and the gravity accelerometer is installed on the low-speed tool shell to drill in the sliding push mode. However, the automatic vertical drilling system has the problems of low efficiency and easy sedimentation of cuttings. In the dynamic rotary push automatic vertical drilling system, the high-speed rotation of the tool will cause the centrifugal force of the gravity accelerometer. The larger the radius of rotation is, the stronger the centrifugal force is. The direction of the centrifugal acceleration is perpendicular to the direction of the angular velocity, and the size depends on the rotation speed and the vertical distance between the measurement point and the well axis. At the same time, the strong vibration environment in the well will greatly interfere with the measurement of the gravity accelerometer.

[0004] Dynamic well deviation measurement is of great significance to ensure the accuracy of drilling direction and improve drilling efficiency and safety. In order to ensure the stable operation and accurate measurement of dynamic well deviation measurement technology in complex downhole environment, it is necessary to verify the accuracy and effectiveness of dynamic well deviation measurement technology. SUMMARY

[0005] The present application provides a rotary vibration simulation device to solve the problem that the influence of the drilling environment on the measurement device is not easy to verify.

[0006] In order to alleviate the above technical problems, the technical scheme provided by the present application is as follows: A rotary vibration simulation device, comprising a base, an angle table is installed on the base, a motor is fixedly connected to the angle table, and a PCB to be measured is installed at the output end of the motor. The two ends of the base are respectively inserted with a first insertion rod and a second insertion rod, one end of the angle table is provided with a first insertion hole matched with the first insertion rod, and the other end of the angle table and the base is provided with a plurality of angle adjusting holes matched with the second insertion rod; The second insertion rod is matched with the plurality of angle adjusting holes, one end of the second insertion rod is provided with a first taper ring, the other end is slidingly connected with a second taper ring, the middle part of the second insertion rod is radially slidingly connected with an expansion block, when the first taper ring and the second taper ring are respectively inserted into the angle adjusting hole, the second insertion rod is coaxial with the angle adjusting hole, and when a plurality of expansion blocks are radially slidingly abutted against the inner wall of the angle adjusting hole, the second insertion rod is fixed in the angle adjusting hole.

[0007] Further, the angle adjusting hole comprises a first angle hole, a second angle hole and a third angle hole, the base is provided with a first through hole matched with the first angle hole, a second through hole matched with the second angle hole, a third through hole matched with the third angle hole and a fourth through hole.

[0008] Further, the base is fixedly connected with a first hydraulic rod, the output end of the first hydraulic rod is fixedly connected with a mounting plate, the first taper ring is provided with four, and the four first taper rings are coaxial with the first through hole, the second through hole, the third through hole and the fourth through hole one by one and fixedly connected with the mounting plate.

[0009] Further, the middle part of the first taper ring is provided with a positioning hole, the end part of the second insertion rod is fixedly connected with a positioning rod, and when the positioning rod is inserted into the positioning hole, the second insertion rod is coaxial with the angle adjusting hole.

[0010] Further, the second taper ring and the second insertion rod are connected with a spring; The middle part of the second taper ring is fixedly connected with a sliding rod through a cross-shaped frame, the sliding rod is fixedly connected with a wedge block matched with the expansion block, and when the second insertion rod and the second taper ring slide relative to each other, the wedge block pushes out the expansion block.

[0011] Further, the base is fixedly connected with a second hydraulic rod, the output end of the second hydraulic rod is fixedly connected with a push plate, and the push plate can push the second insertion rod to slide in the angle adjusting hole.

[0012] Further, it further comprises a third hydraulic rod fixedly connected with the base, the output end of the third hydraulic rod is fixedly connected with an angle pad, the surface of the angle pad is provided with a plurality of inclined surfaces, and when a plurality of inclined surfaces are respectively in contact with the lower surface of the angle table, the angle table can be inclined by a corresponding angle.

[0013] Further, the second hydraulic rod is communicated with a first pipeline, the first pipeline is communicated with a second pipeline and the third hydraulic rod, and the second pipeline is provided with a pressure valve.

[0014] Further, the output end of the motor is fixedly connected with a rotating support plate, one end of the rotating support plate is provided with a control console, the control console is used for controlling vibration frequency, amplitude and vibration direction, and the to-be-tested PCB is installed on the other end of the rotating support plate.

[0015] Further, an automatic control unit is installed on the control console, the automatic control unit is used for controlling the rotating speed of the motor, an L-shaped plate is installed on the rotating support plate, the to-be-tested PCB is installed on the L-shaped plate, and the L-shaped plate can drive the to-be-tested PCB to move on the rotating support plate, so that the distance between the to-be-tested PCB and the central axis of the motor is changed.

[0016] The beneficial effects of the present application are as follows: The rotating vibration simulation device comprises a base, an angle table is installed on the base, a motor is fixedly connected to the angle table, and a to-be-tested PCB is installed on the output end of the motor; a first insertion rod and a second insertion rod are respectively inserted into both ends of the base, a first insertion hole matched with the first insertion rod is formed in one end of the angle table, and a plurality of angle adjustment holes matched with the second insertion rod are formed in the other end of the angle table and the base; the second insertion rod is gap-fitted between the plurality of angle adjustment holes, a first taper ring is arranged at one end of the second insertion rod, a second taper ring is slidingly connected to the other end of the second insertion rod, an expansion block is radially slidingly connected to the middle part of the second insertion rod, the second insertion rod is coaxial with the angle adjustment hole when the first taper ring and the second taper ring are respectively inserted into the angle adjustment hole, and the second insertion rod is fixed to the angle adjustment hole when the plurality of expansion blocks are radially slidingly abutted to the inner wall of the angle adjustment hole.

[0017] The to-be-tested PCB is installed at the output end of the motor, the angle of the angle table is manually measured in the static state of the motor, and then the manually measured angle is compared with the angle measured by the to-be-tested PCB, so as to obtain the measurement error of the to-be-tested PCB. In addition, when comparing the manually measured angle with the angle measured by the to-be-tested PCB, the angle of the angle table can be changed, and the motor is controlled to rotate and the rotation speed is changed for comparison, so as to obtain the measurement error of the to-be-tested PCB, thereby providing a reference for actual drilling measurement. The first inserting rod is in transition fit with the angle table, so that the angle table cannot shake relative to the base. The second inserting rod is in clearance fit with the plurality of angle adjusting holes, so as to be convenient for plugging and unplugging. After the second inserting rod is plugged into the corresponding angle adjusting hole, the first taper ring is close to the second inserting rod, the second taper ring on the second inserting rod is close to the inner wall of the angle adjusting hole and is attached to the inner wall of the angle adjusting hole, so that the second inserting rod is in the coaxial position with the angle adjusting hole. Then, the plurality of expansion blocks in the annular array on the side wall of the second inserting rod are synchronously close to and abut against the inner wall of the angle adjusting hole on the angle table, so that the second inserting rod is coaxial with the angle adjusting hole of the angle table, and the angle of the angle table is accurate and stable. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the specific embodiments or related art of the present application, the drawings needed to be used in the specific embodiments or related art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application. Figure 2 It is a schematic diagram of the structure at the base of the present application. Figure 3 It is a schematic diagram of the structure of the angle adjusting hole of the present application. Figure 4 It is a schematic diagram of the structure at the second hydraulic rod of the present application. Figure 5 It is a schematic diagram of the structure at the first hydraulic rod of the present application. Figure 6 It is a schematic diagram of the structure at the sliding rod of the present application. Figure 7 It is a schematic diagram of the structure of the angle pad of the present application.

[0020] Icon: 100, vibration table; 200, parameter adjusting mechanism; 300, base; 301, first through hole; 302, second through hole; 303, third through hole; 304, fourth through hole; 310, angle table; 311, first insertion hole; 312, first angle hole; 313, second angle hole; 314, third angle hole; 320, first insertion rod; 330, second insertion rod; 331, positioning rod; 340, second taper ring; 350, sliding rod; 360, wedge block; 370, expansion block; 380, spring; 400, first hydraulic rod; 410, mounting plate; 420, first taper ring; 430, second hydraulic rod; 440, push plate; 500, third hydraulic rod; 510, angle pad; 520, first inclined surface; 530, second inclined surface; 540, third inclined surface; 600, motor; 610, support frame; 620, shaft coupling; 630, rotating support plate; 640, control console; 650, automatic control unit; 660, L-shaped plate; 670, connecting plate; 680, to-be-tested PCB; 700, first pipeline; 710, second pipeline; 720, pressure valve. DETAILED DESCRIPTION

[0021] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0022] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0024] Embodiments, such as Figures 1-7As shown, a rotary vibration simulation device comprises a base 300, an angle table 310 is installed on the base 300, a motor 600 is fixedly connected to the angle table 310, and a to-be-measured PCB 680 is installed at the output end of the motor 600; the two ends of the base 300 are respectively inserted with a first insertion rod 320 and a second insertion rod 330, one end of the angle table 310 is provided with a first insertion hole 311 matched with the first insertion rod 320, and the other end of the angle table 310 and the base 300 is provided with a plurality of angle adjustment holes matched with the second insertion rod 330; the second insertion rod 330 is gap-fitted with the plurality of angle adjustment holes, a first taper ring 420 is arranged at one end of the second insertion rod 330, a second taper ring 340 is slidingly connected to the other end of the second insertion rod 330, a plurality of expansion blocks 370 are radially slidingly connected to the middle part of the second insertion rod 330, when the first taper ring 420 and the second taper ring 340 are respectively inserted into the angle adjustment holes, the second insertion rod 330 is coaxial with the angle adjustment holes, and when the plurality of expansion blocks 370 are radially slidingly abutted against the inner walls of the angle adjustment holes, the second insertion rod 330 is fixed in the angle adjustment holes.

[0025] The working mechanism of the rotary vibration simulation device provided in the embodiment is as follows: The to-be-measured PCB 680 is installed at the output end of the motor 600, the angle of the angle table 310 is manually measured in the static state of the motor 600, the manually measured angle is compared with the angle measured by the to-be-measured PCB 680, and thus the measurement error of the to-be-measured PCB 680 is obtained; in addition, when the manually measured angle is compared with the angle measured by the to-be-measured PCB 680, the angle of the angle table 310 can be changed, the motor 600 can be controlled to rotate, and the rotation speed can be changed for comparison, and thus the measurement error of the to-be-measured PCB 680 is obtained, which provides a reference for actual drilling measurement. The first insertion rod 320 is transitionally matched with the angle table 310, so that the angle table 310 cannot shake relative to the base 300, and the second insertion rod 330 is gap-fitted with the plurality of angle adjustment holes, so that the second insertion rod 330 is convenient to plug and unplug; after the second insertion rod 330 is inserted into the corresponding angle adjustment hole, the first taper ring 420 is close to the second insertion rod 330, the second taper ring 340 on the second insertion rod 330 is close to the angle adjustment hole and abuts against the inner wall of the angle adjustment hole, so that the second insertion rod 330 is in a coaxial position with the angle adjustment hole, and then the plurality of expansion blocks 370 in the annular array on the side wall of the second insertion rod 330 are simultaneously close to and abut against the inner wall of the angle adjustment hole on the angle table 310, so that the second insertion rod 330 is coaxial with the angle adjustment hole of the angle table 310, and the angle of the angle table 310 is accurate and stable.

[0026] Regarding the angle adjustment hole, specifically: The angle adjusting holes include a first angle hole 312, a second angle hole 313 and a third angle hole 314, and the base 300 is provided with a first through hole 301 matched with the first angle hole 312, a second through hole 302 matched with the second angle hole 313, a third through hole 303 matched with the third angle hole 314 and a fourth through hole 304.

[0027] The angle table 310 is provided with the first angle hole 312, the second angle hole 313 and the third angle hole 314 arranged linearly at one end away from the first insertion hole 311, and the base 300 is provided with four through holes symmetrically, when the second insertion rod 330 is inserted into the fourth through hole 304 and the third angle hole 314, the angle table 310 is in a horizontal state, the angle table 310 is swung upward with the first insertion rod 320 as an axis, so that the first angle hole 312 is coaxial with the first through hole 301, at this time, the second insertion rod 330 is inserted into the first through hole 301 and the first angle hole 312, with the upward swing of the angle table 310, the second angle hole 313 is aligned with the second through hole 302, and the third angle hole 314 is aligned with the third through hole 303 with continuous upward swing.

[0028] In an optional mode of the embodiment, the following is preferred: The base 300 is fixedly connected with a first hydraulic rod 400, the output end of the first hydraulic rod 400 is fixedly connected with a mounting plate 410, four first taper rings 420 are arranged, and the four first taper rings 420 are coaxially and fixedly connected to the mounting plate 410 one by one corresponding to the first through hole 301, the second through hole 302, the third through hole 303 and the fourth through hole 304.

[0029] After the second insertion rod 330 is inserted into the corresponding angle adjusting hole, the first hydraulic rod 400 is controlled to be elongated, so that the mounting plate 410 approaches the base 300, at this time, the first taper ring 420 is inserted into the angle adjusting hole on the base 300, so that the second insertion rod 330 and the first taper ring 420 are coaxial when the second insertion rod 330 is subsequently pushed.

[0030] In an optional mode of the embodiment, the following is preferred: The middle part of the first taper ring 420 is provided with a positioning hole, and the end part of the second insertion rod 330 is fixedly connected with a positioning rod 331, when the positioning rod 331 is inserted into the positioning hole, the second insertion rod 330 is coaxial with the angle adjusting hole.

[0031] The second insertion rod 330 is pushed, so that the positioning rod 331 at the end part of the second insertion rod 330 is inserted into the positioning hole of the corresponding first taper ring 420, so that the second insertion rod 330 is coaxial with the first taper ring 420.

[0032] In an optional mode of the embodiment, the following is preferred: The spring 380 is connected between the second taper ring 340 and the second inserting rod 330; the middle part of the second taper ring 340 is fixedly connected with the slide rod 350 through the cross-shaped frame, and the wedge block 360 matched with the expansion block 370 is fixedly connected on the slide rod 350; when the second inserting rod 330 slides relative to the second taper ring 340, the wedge block 360 pushes the expansion block 370 out.

[0033] When the second inserting rod 330 is pushed, the second taper ring 340 is in contact with the inner wall of the angle adjusting hole, and then the second inserting rod 330 is continuously pushed, so that the second taper ring 340 slides relative to the second inserting rod 330, the spring 380 is compressed, and the slide rod 350 slides at the same time driven by the second inserting rod 330; at this time, the wedge block 360 on the slide rod 350 pushes the expansion block 370 to slide radially away from the second inserting rod 330, so that the plurality of expansion blocks 370 are synchronously abutted on the inner wall of the angle adjusting hole on the angle table 310, so that the second inserting rod 330 can be coaxial with the angle adjusting hole on the angle table 310, so that the position of the angle table 310 can be stable, and the angle can be accurate.

[0034] In an optional mode of the embodiment, the following is more preferred: The second hydraulic rod 430 is fixedly connected on the base 300, and the output end of the second hydraulic rod 430 is fixedly connected with the push plate 440, which can push the second inserting rod 330 to slide in the angle adjusting hole.

[0035] The second hydraulic rod 430 can be started synchronously with the first hydraulic rod 400, the first taper ring 420 limits the sliding stroke of the second inserting rod 330, and the second hydraulic rod 430 pushes the second inserting rod 330 to the direction of the first taper ring 420; at this time, the second taper ring 340 slides relative to the second inserting rod 330; in addition, it should be noted that the positioning rod 331 has sufficient length to ensure that the second inserting rod 330 can be positioned by the first taper ring 420; the positioning rod 331 does not need to be completely inserted into the positioning hole, and the expansion block 370 can be completely expanded to the state of positioning the second inserting rod 330.

[0036] In an optional mode of the embodiment, the following is more preferred: The third hydraulic rod 500 fixedly connected with the base 300 is further included, and the output end of the third hydraulic rod 500 is fixedly connected with the angle pad 510; the surface of the angle pad 510 is provided with a plurality of inclined surfaces; when the plurality of inclined surfaces are in contact with the lower surface of the angle table 310, the angle table 310 can be inclined by a corresponding angle.

[0037] The angle pad 510 is provided with a first inclined surface 520, a second inclined surface 530 and a third inclined surface 540, and the third hydraulic rod 500 is extended to push the angle pad 510 to the lower part of the angle table 310. When the angle table 310 is horizontal, the angle pad 510 is blocked by the angle table 310 and cannot slide to the lower part of the angle table 310. When the second inserting rod 330 is inserted into the first angle hole 312 and the first through hole 301, the third hydraulic rod 500 is extended so that the first inclined surface 520 of the angle pad 510 is located at the lower part of the angle table 310 and is in contact with the lower surface of the angle table 310. The inclined surfaces have a step, which can prevent the third hydraulic rod 500 from being further extended. By arranging the angle pad 510, the angle table 310 is supported, and the angle of the angle table 310 is further ensured to be accurate and not deviated due to vibration during the measurement process.

[0038] In an optional mode of the embodiment, the following is preferred: The second hydraulic rod 430 is communicated with a first pipeline 700, the first pipeline 700 is communicated with a second pipeline 710 between the third hydraulic rod 500, and the second pipeline 710 is provided with a pressure valve 720. After the second hydraulic rod 430 is extended so that the expansion block 370 abuts against the inner wall of the angle adjusting hole, the third hydraulic rod 500 is extended.

[0039] The first pipeline 700 is connected to the pump-in of the external hydraulic oil, and the third hydraulic rod 500 is separately connected with a return pipe of the hydraulic oil. When the hydraulic oil is pumped in, the second hydraulic rod 430 is first controlled to be extended, so that the angle of the angle table 310 is first stabilized. Then, after the expansion block 370 is blocked, the second hydraulic rod 430 is no longer extended, so that the hydraulic oil breaks through the limitation of the pressure valve 720 and flows to the second pipeline 710, so that the third hydraulic rod 500 is extended, and the angle pad 510 can slide to the lower part of the angle table 310, so that the angle of the angle table 310 is further stabilized.

[0040] In an optional mode of the embodiment, the following is preferred: The output end of the motor 600 is fixedly connected with a rotating support plate 630, one end of the rotating support plate 630 is installed with a control console 640, the control console 640 is used for controlling the vibration frequency, amplitude and vibration direction, and the to-be-measured PCB board 680 is installed at the other end of the rotating support plate 630.

[0041] The device further comprises a vibration table 100, the base 300 is installed on the vibration table 100, the vibration table 100 can apply vibration to the base 300 to simulate the vibration state of drilling, and the device further comprises a parameter adjusting mechanism 200 for adjusting the vibration frequency, amplitude and vibration direction of the vibration table 100; The control console 640 is installed at the end of the rotating support plate 630. After the parameters of the vibration frequency, amplitude and vibration direction of the vibration table 100 are adjusted by the parameter adjustment mechanism 200, the control console 640 operates according to the parameters set by the parameter adjustment mechanism 200 to control the vibration table 100 to vibrate at the set vibration frequency, amplitude and vibration direction. The PCB board 680 to be tested is symmetrically installed with the control console 640. The output end of the motor 600 is connected with the rotating support plate 630 through the shaft coupling 620. The support frame 610 fixes the motor 600. When the motor 600 operates, it can drive the rotating support plate 630 to rotate, thereby providing centrifugal force for the PCB board 680 to be tested.

[0042] In an optional mode of the embodiment, the following is more preferred: An automatic control unit 650 is installed on the control console 640, which is used to control the rotating speed of the motor 600. An L-shaped plate 660 is installed on the rotating support plate 630. The PCB board 680 to be tested is installed on the L-shaped plate 660. The L-shaped plate 660 can drive the PCB board 680 to be tested to move on the rotating support plate 630, thereby changing the distance between the PCB board 680 to be tested and the central axis of the motor 600.

[0043] The automatic control unit 650 can control the rotating speed of the motor 600. The L-shaped plate 660 is connected with the rotating support plate 630 through an electric sliding block or a cylinder and the like. The automatic control unit 650 adjusts the rotating radius of the PCB board 680 to be tested by controlling the sliding of the L-shaped plate 660. The PCB board 680 to be tested and the L-shaped plate 660 are connected through a connecting plate 670. The three can be fixed through screws. The PCB board 680 to be tested can be vertically or horizontally installed on the connecting plate 670, thereby forming different detection states.

[0044] In the test, the rotating radius of the PCB board 680 to be tested is set to the maximum value of 120 mm. At this time, the centrifugal force generated by rotation is the largest. The device respectively performs static test, dynamic rotation test, dynamic rotation low-frequency low-acceleration vibration test and dynamic rotation high-frequency high-acceleration vibration test. In the static test, the device has no rotation and vibration movement. The inclination angle of the angle table 310 is adjusted. The inclination angle increases from 0° to 4.5°. The static test results are shown in Table 1. The measurement error is less than 0.1°.

[0045] Table 1 Static test results In the dynamic rotation test, the rotating speed of the motor 600 is controlled to increase from 10 rpm to 220 rpm. The inclination angle of the angle table 310 is adjusted to increase from 0.5° to 4.5°. The test duration is 60 s. The dynamic rotation test results are shown in Table 2. The maximum measurement error is 0.221°.

[0046] Table 2 Dynamic rotation test results In the dynamic rotation low frequency low acceleration vibration test mode, the rotation speed of the motor 600 is increased from 10 rpm to 220 rpm, and the inclination angle of the angle table 310 is adjusted from 0.5° to 4.3° while the frequency of the vibration table 100 is controlled to be 1-7 Hz, the vibration acceleration is 4g, the test duration is 60s, and the dynamic rotation low frequency low acceleration vibration test results are shown in Table 3, and the maximum measurement error is 0.285°.

[0047] Table 3 Dynamic rotation low frequency low acceleration vibration test results In the dynamic rotation high frequency high acceleration vibration test mode, the rotation speed of the motor 600 is increased from 30 rpm to 220 rpm, and the inclination angle of the angle table 310 is adjusted from 1.5° to 4.2° while the frequency of the vibration table 100 is controlled to be 50-200 Hz, the vibration acceleration is 20g, the test duration is 60s, and the dynamic rotation high frequency high acceleration vibration test results are shown in Table 4, and the maximum measurement error is 0.197°.

[0048] Table 4 Dynamic rotation high frequency high acceleration vibration test results Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A rotary vibration simulation device, characterized by: Including base (300), the base (300) is installed with angle table (310), the angle table (310) is fixedly connected with motor (600), the output end of motor (600) is installed with the PCB board (680) to be measured; Both ends of the base (300) are respectively inserted with first insertion rod (320) and second insertion rod (330), one end of the angle table (310) is provided with first insertion hole (311) matched with the first insertion rod (320), the other end of the angle table (310) and the base (300) is provided with multiple angle adjusting holes matched with the second insertion rod (330); The second insertion rod (330) is matched with multiple angle adjusting holes, a first taper ring (420) is arranged at one end of the second insertion rod (330), a second taper ring (340) is slidably connected at the other end of the second insertion rod (330), a plurality of expansion blocks (370) are radially slidably connected to the middle part of the second insertion rod (330), when the first taper ring (420) and the second taper ring (340) are inserted into the angle adjusting hole respectively, the second insertion rod (330) is coaxial with the angle adjusting hole, when a plurality of expansion blocks (370) are radially slidably abutted to the inner wall of the angle adjusting hole, the second insertion rod (330) is fixed in the angle adjusting hole.

2. The rotational vibration simulation device according to claim 1, characterized by: The angle adjusting hole includes first angle hole (312), second angle hole (313) and third angle hole (314), the base (300) is provided with first through hole (301) matched with the first angle hole (312), second through hole (302) matched with the second angle hole (313), third through hole (303) matched with the third angle hole (314) and fourth through hole (304).

3. The rotational vibration simulation device of claim 2, wherein: The base (300) is fixedly connected with first hydraulic rod (400), the output end of the first hydraulic rod (400) is fixedly connected with mounting plate (410), the first taper ring (420) is provided with four, and the four first taper rings (420) are coaxially corresponding and fixedly connected to the mounting plate (410) with the first through hole (301), the second through hole (302), the third through hole (303) and the fourth through hole (304) respectively.

4. The rotational vibration simulation device of claim 3, wherein: The middle part of the first taper ring (420) is provided with a positioning hole, the end of the second insertion rod (330) is fixedly connected with a positioning rod (331), when the positioning rod (331) is inserted into the positioning hole, the second insertion rod (330) is coaxial with the angle adjusting hole.

5. The rotational vibration simulation device of claim 1, wherein: The second taper ring (340) is connected with spring (380) between the second insertion rod (330); The middle part of the second taper ring (340) is fixedly connected with slide rod (350) through cross-shaped frame, the slide rod (350) is fixedly connected with wedge block (360) matched with the expansion block (370), when the second insertion rod (330) and the second taper ring (340) slide relative to each other, the wedge block (360) pushes out the expansion block (370).

6. The rotational vibration simulation device of claim 5, wherein: The base (300) is fixedly connected with a second hydraulic rod (430), and the output end of the second hydraulic rod (430) is fixedly connected with a push plate (440), and the push plate (440) can push the second inserting rod (330) to slide in the angle adjusting hole.

7. The rotational vibration simulation device of claim 6, wherein: A third hydraulic rod (500) is fixedly connected with the base (300), and the output end of the third hydraulic rod (500) is fixedly connected with an angle pad (510), and the surface of the angle pad (510) is provided with a plurality of inclined surfaces, and when the plurality of inclined surfaces are in contact with the lower surface of the angle table (310), the angle table (310) can be inclined by a corresponding angle.

8. The rotational vibration simulation device of claim 7, wherein: The second hydraulic rod (430) is communicated with a first pipeline (700), the first pipeline (700) and the third hydraulic rod (500) are communicated with a second pipeline (710), the second pipeline (710) is provided with a pressure valve (720), and after the second hydraulic rod (430) is elongated and the expansion block (370) abuts against the inner wall of the angle adjusting hole, the third hydraulic rod (500) is elongated.

9. The rotational vibration simulation device of claim 1, wherein: The output end of the motor (600) is fixedly connected with a rotating support plate (630), one end of the rotating support plate (630) is provided with a control console (640), the control console (640) is used for controlling the vibration frequency, amplitude and vibration direction, and the to-be-tested PCB (680) is installed on the other end of the rotating support plate (630).

10. The rotational vibration simulation device of claim 9, wherein: An automatic control unit (650) is installed on the control console (640), the automatic control unit (650) is used for controlling the rotating speed of the motor (600), an L-shaped plate (660) is installed on the rotating support plate (630), the to-be-tested PCB (680) is installed on the L-shaped plate (660), and the L-shaped plate (660) can drive the to-be-tested PCB (680) to move on the rotating support plate (630), so as to change the distance between the to-be-tested PCB (680) and the central axis of the motor (600).

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