Turntable test equipment and system

Abstract

The application provides a rotary table test device and system, which comprises a rack, a bracket, a crank slider mechanism and a loading assembly; the rack comprises a bottom plate for bearing the rotary table and a column assembly arranged on the bottom plate; the bracket is arranged above the rotary table and is in sliding fit with the column; the crank slider mechanism is arranged on the bracket and comprises a crank slider assembly and an arc-shaped slide, one end of the crank slider assembly is pivotally connected with the column assembly and can move vertically along the extension direction of the column assembly, and the other end is in sliding fit with the arc-shaped slide; the loading assembly comprises a loader, a first end of the loader is hinged with the rotary table and is used for applying a loading force to the rotary table, and the crank slider assembly is used for driving the second end of the loader to swing in an arc shape with the hinged point as the center. The crank slider assembly is used for driving the loader to swing in an arc shape, the loading angle of the loader can be adjusted in a large range, and then the loading test can be carried out more close to the real working condition.

Description

Technical Field

[0001] The present invention belongs to the technical field of engineering machinery testing, and in particular relates to a turntable testing device and system. Background Art

[0002] Turntables are critical components of construction machinery such as pump trucks and cranes. After manufacturing, they require a variety of loading tests to verify their structural performance. Existing test benches often rely solely on adjusting the drive assembly to rotate the connector relative to the frame assembly to change the loader angle. This solution offers limited adjustment angles and simulated operating conditions, making it difficult to simulate realistic turntable stresses. Summary of the Invention

[0003] The main purpose of the present invention is to provide a turntable test device and system, aiming to solve the technical problem that the turntable test device in the prior art cannot truly simulate the actual turntable stress conditions.

[0004] In order to achieve the above object, the present invention provides a turntable test device, comprising:

[0005] A frame, comprising a base plate for supporting the turntable and a column assembly provided on the base plate;

[0006] a bracket, spaced apart and positioned above the turntable and slidingly engaged with the column assembly;

[0007] a crank slider mechanism, provided on the bracket and comprising a crank slider assembly and an arcuate slideway, wherein one end of the crank slider assembly is pivotally connected to the column assembly and can vertically move along the extension direction of the column assembly, and the other end is in sliding engagement with the arcuate slideway;

[0008] The loading assembly includes a loader, a first end of which is hinged to the turntable and is used to apply a loading force to the turntable, and the crank slider assembly is used to drive the second end of the loader to swing in an arc with the hinge point as the center.

[0009] In an embodiment of the present invention, the turntable test device further comprises a linear drive mechanism provided on the frame, and the crank slider assembly comprises:

[0010] A push-pull rod, wherein the linear drive mechanism is pivotally connected to a first end of the push-pull rod and is used to drive the push-pull rod to reciprocate in a vertical direction; and

[0011] The arc slider is pivotally connected to the second end of the push-pull rod, and the arc slider slides circumferentially through the arc slideway. The bottom surface of the arc slider is fixedly connected to the second end of the loader.

[0012] In an embodiment of the present invention, the inner concave surface of the arcuate slide is arranged toward one side of the turntable, and both ends of the arcuate slide are slidably matched with the bracket and can slide along the length direction of the bracket.

[0013] In an embodiment of the present invention, the bracket includes two spaced-apart support rods, each of which is provided with a first guide groove along its length, and both ends of the arc-shaped slide are connected to a first slide, and both ends of the first slide are slidably engaged with the first guide groove.

[0014] In an embodiment of the present invention, the number of the loading components is two groups, and the turntable includes two triangular vertical plates arranged at intervals, each of the triangular vertical plates has two corresponding hinge holes, and the two triangular vertical plates are connected by a connecting pin, and the connecting pin passes through the corresponding hinge holes on the two triangular vertical plates in turn, and each of the connecting pins is connected to a group of the loading components.

[0015] In an embodiment of the present invention, there are two brackets and they are spaced apart in the vertical direction. Each bracket carries a group of loading components, and the distance between the two brackets is greater than the height of the arc-shaped slideway.

[0016] In an embodiment of the present invention, the number of the loading assemblies and the crank slider mechanisms are the same and they are connected correspondingly. The push-pull rods connected to each group of the loading assemblies are tilted and extend through the bracket to the linear drive mechanism and connect to the second slide.

[0017] In an embodiment of the present invention, the column assembly includes two columns arranged at intervals, a support seat is connected between the two columns, the horizontal plane of the support seat is higher than the horizontal plane of the two brackets, and the relative inner side walls of each column are provided with a second guide slot in the vertical direction; the linear drive mechanism includes:

[0018] A rotary driving member is provided at the top ends of the two upright posts;

[0019] A rotating screw extends in the vertical direction and is located between the two columns. One end of the rotating screw is electrically connected to the rotating drive member, and the other end is fixedly connected to the support seat. The outer peripheral thread sleeve of the rotating screw is provided with a second slide, and both ends of the second slide are slidably inserted in the second guide groove.

[0020] In the embodiment of the present application, the bottom of the rotary table is provided with a mounting seat, a plurality of first mounting hole groups are formed on the bottom plate, and the plurality of first mounting hole groups are arranged in the width direction at intervals, each of the first mounting hole groups comprises first mounting holes arranged in the length direction at intervals, and the mounting seat and the bottom plate are connected in sequence by fasteners penetrating the mounting seat and at least two first mounting holes.

[0021] In the embodiment of the present application, a plurality of second mounting hole groups are also formed on the bottom plate, the plurality of second mounting hole groups are respectively distributed at the four corners of the bottom plate, each of the second mounting hole groups comprises at least one second mounting hole, and the columns in two column assemblies correspond to the second mounting holes for mounting.

[0022] In the embodiment of the present application, a rotary table test system is also provided, which comprises a control unit and the rotary table test device as described above, and the control unit is used to monitor and control the test process of the rotary table test device.

[0023] Through the above technical solution, the rotary table test device provided by the embodiment of the present application has the following beneficial effects:

[0024] The rotary table is placed on the bottom plate of the rack, the column assembly of the rack is also arranged on the bottom plate, the bracket is arranged above the rotary table at intervals and is in sliding fit with the column assembly. One end of the crank slider assembly is pivotally connected with the column assembly and can move vertically along the extension direction of the column assembly, and the other end is in sliding fit with the arc-shaped slide. The first end of the loader is hingedly connected with the rotary table and is used to apply a loading force to the rotary table. During the loading test, the crank slider assembly drives the second end of the loader to swing in an arc shape around the hinge point, and then the loader applies the required loading force to the rotary table. The crank slider assembly is used to drive the loader to swing in an arc shape in the present application, so that the loading angle of the loader can be controlled in a large range, and then the loading test can be carried out more close to the actual working condition.

[0025] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0026] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with the following specific embodiments to explain the present application, but do not constitute a limitation on the present application. In the drawings:

[0027] Figure 1 is a structural schematic view of a rotary table test device in the first embodiment of the present application;

[0028] Figure 2 is a front view of the rotary table test device in the first embodiment of the present application;

[0029] Figure 3 is a schematic top view of a turntable test device according to a first embodiment of the present invention;

[0030] Figure 4 is a partial schematic diagram of the connection structure between the turntable and the base plate in the turntable test device according to the first embodiment of the present invention;

[0031] Figure 5 is a schematic structural diagram of a bottom plate in a turntable test device according to a first embodiment of the present invention;

[0032] Figure 6 is a schematic structural diagram of a turntable test device according to a second embodiment of the present invention;

[0033] Figure 7 It is a schematic diagram of the dimensional relationship between the position of the arc slider and the rotation angle of the push-pull rod in the crank slider mechanism of the turntable test device of the present invention;

[0034] Figure 8 It is a schematic diagram of the structural principle of the turntable test device of the present invention in which two arc-shaped slideways do not interfere with each other.

[0035] Description of Reference Numerals

[0036] DETAILED DESCRIPTION

[0037] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0038] The turntable test device and the turntable test system according to the present invention will be described below with reference to the accompanying drawings.

[0039] like Figure 1 and Figure 2 As shown, in an embodiment of the present invention, a turntable test device is provided, which includes a frame, a bracket 20, a crank slider mechanism 30 and a loading assembly; wherein, the frame includes a base plate 11 for supporting the turntable 100 and a column assembly arranged on the base plate 11; the bracket 20 is located above the turntable 100 and slides with the column assembly; the crank slider mechanism 30 is arranged on the bracket 20 and includes a crank slider assembly and an arc slide 31, one end of the crank slider assembly is pivotally connected to the column assembly and can move vertically along the extension direction of the column assembly, and the other end slides with the arc slide 31; the loading assembly includes a loader 40, a first end of the loader 40 is hinged to the turntable 100 and is used to apply a loading force to the turntable 100, and the crank slider assembly is used to drive the second end of the loader 40 to swing in an arc with the hinge point as the center.

[0040] When the turntable 100 is subjected to a simulated loading test, the crank slider assembly drives the loader 40 to swing in an arc around the hinge point to adjust the angle of rotation of the loader 40 relative to the turntable 100, thereby adjusting the direction of the force applied to the turntable 100; and the force applied to the turntable 100 can also be adjusted by adjusting the magnitude and frequency of the driving force of the loader 40. In summary, in order to simulate the force applied to the turntable 100 under real working conditions, the turntable test device uses the principle of the reverse crank slider mechanism 30 and adopts the crank slider assembly to drive the loader 40 to swing in an arc, so as to achieve a wide range of control over the loading angle of the loader 40. Since the turntable test device of the present application can complete multi-working condition loading tests, the loading angle of the loader 40 can be adjusted over a wide range, thereby being able to perform loading tests closer to real working conditions. Among them, the loader 40 can be a driving member such as a telescopic cylinder that can apply a driving force and can change the telescopic length.

[0041] In an embodiment of the present invention, the turntable test device also includes a linear drive mechanism arranged on the frame, and the crank slider assembly includes a push-pull rod 33 and an arc slider 32; wherein, the linear drive mechanism is pivotally connected to the first end of the push-pull rod 33 through a rotating pin, and the linear drive mechanism is used to drive the push-pull rod 33 to reciprocate in the vertical direction; the arc slider 32 is pivotally connected to the second end of the push-pull rod 33 through a rotating pin, and the arc slider 32 slides circumferentially through the arc slide 31, and the bottom surface of the arc slider 32 is fixedly connected to the second end of the loader 40.

[0042] Specifically, a hollow groove is provided in the arc slider 32, with both sides of the hollow groove open so that the arc slide 31 can pass through the hollow groove, and the arc slider 32 can slide relative to the arc slide 31 along the arc length direction. The linear drive mechanism reciprocates, driving the push-pull rod 33 to swing, which in turn causes the arc slider 32 to move along the arc slide 31, thereby driving the loader 40 to change the loading angle. Since the bottom end of the loader 40 is hinged to the turntable 100, the top end of the loader 40 also moves in an arc around the hinge point, thereby adjusting the angular range of the loader 40.

[0043] In this embodiment of the present invention, the inner concave surface of the curved slideway 31 is positioned toward one side of the turntable 100 to facilitate sliding of the arc slider 32 on the curved slideway 31 and reduce resistance during the sliding process. Both ends of the curved slideway 31 slidably engage with the bracket 20 and can slide along the length of the bracket 20 to change the position of the entire curved slideway 31 on the bracket 20. Furthermore, the curvature of the curved slideway 31 can be determined based on the size of the turntable 100 and the angle range that the loader 40 needs to adjust.

[0044] The position of the arc slideway on the bracket 20 can be adjusted manually. Figure 3As shown, the bracket 20 includes two spaced support rods 21 that span between the column assemblies on either side in the left-right direction. The opposing inner walls of each support rod 21 define a first guide slot 22 that extends along the length of the support rod 21. A first slide plate is connected to each end of the curved slide 31, which slides and engages in the first guide slots 22 on either side. When the position of the curved slide 31 on the bracket 20 needs to be adjusted to accommodate turntables 100 of different sizes, the bracket 20 and the curved slide 31 remain locked after the adjustment is completed.

[0045] In an embodiment of the present invention, Figure 4 As shown, there are two groups of loading components. The turntable 100 includes two triangular upright plates 101 arranged at intervals. Each triangular upright plate 101 has two corresponding hinge holes 103. The two triangular upright plates 101 are connected by a connecting pin 102. The connecting pin 102 passes through the corresponding hinge holes 103 on the two triangular upright plates 101 in sequence. Each connecting pin 102 is connected to a group of loading components. The two hinge holes 103 are respectively located at the two bottom corners of the triangular upright plate 101, so that the loading components respectively connected to the two hinge holes 103 do not interfere with each other in the left-right direction and the up-down direction. Figure 1 As shown, in the first embodiment, the connection point between the loader 40 and the connecting pin 102 is located between the two triangular vertical plates 101, and by providing two sets of loading components, the two hinge holes 103 of the turntable 100 can be loaded and tested separately, or loaded simultaneously, and the loading processes do not interfere with each other.

[0046] In addition, in order to simulate the eccentric bending moment of the turntable 100 in the actual working condition, the test device can move the turntable 100 and the mounting base 104, such as Figure 6 As shown, in the second embodiment, the loader 40 is biased against the connecting pin 102. That is, the connection point between the loader 40 and the connecting pin 102 is located outside the triangular upright 101. By controlling the loading force and direction of the loader 40, the magnitude and direction of the eccentric bending moment applied to the turntable 100 are adjusted to verify the torsional performance of the turntable 100. While existing technologies can only verify the tensile and compressive performance of the turntable 100, this turntable testing device can also verify the torsional performance of the turntable 100, providing more comprehensive and enhanced testing capabilities.

[0047] In this embodiment of the present invention, there are two brackets 20, spaced apart in the vertical direction. Each bracket 20 carries a corresponding set of loading assemblies, without interfering with each other. The loading assemblies and the slider-crank mechanisms 30 are identical in number and connected to each other. The push-pull rods 33 connected to the loading assemblies located below pass through the bracket 20 located above and extend downward. Specifically, each bracket 20 has a notch for the push-pull rods 33 to pass through at an angle. This allows the push-pull rods 33 located below to extend upward from the arc-shaped slider 32 below, pass through the notch, and then be hinged to the corresponding column 12.

[0048] In order to prevent the top end of the lower arc-shaped slide 31 from abutting against the upper bracket 20 during the test, the distance between the two brackets 20 is made greater than the height of the arc-shaped slide 31 during the test.

[0049] Furthermore, if Figure 7 As shown, the dotted line represents the limit position of the crank slider mechanism 30, and the mathematical relationship between the rotation angles of the second slide 124 and the loader 40 relative to the horizontal plane is as follows:

[0050]

[0051]

[0052] Wherein, d is the height of the second slide plate 124 from the rotation center of the crank; is the distance that the second slide plate 124 moves relative to the limit position; D1 is the length of the push-pull rod 33; D2 is the offset distance; r is the turning radius; 、 、 They are respectively the limit angle, the angle of the loader 40 relative to the horizontal plane, and the angle that the loader 40 rotates relative to the limit angle.

[0053] like Figure 8 As shown, when determining the size of the two arc-shaped slides 31, by driving the lower crank slider mechanism 30 to rotate within the above-mentioned limit angle range, when the lower crank slider mechanism 30 approaches the rightmost limit position, the position of the upper crank slider mechanism 30 can be adjusted up, down, left and right. As long as the upper and lower crank slider mechanisms 30 do not interfere with each other, the size of the arc-shaped slide 31 can meet the requirements.

[0054] In an embodiment of the present invention, the column assembly includes two columns 12 arranged at intervals, and a support seat 121 is connected between the two columns 12. The horizontal plane of the support seat 121 is higher than the horizontal plane of the two brackets 20 respectively. The relative inner wall of each column 12 is provided with a second guide slot 122 in the vertical direction; the linear drive mechanism includes a rotary drive member 125 and a rotary screw 123; the rotary drive member 125 is provided at the top of the two columns 12, and the rotary screw 123 extends in the vertical direction and is located between the two columns 12. One end of the rotary screw 123 is electrically connected to the rotary drive member 125, and the other end is movably inserted in the support seat 121. The outer peripheral thread sleeve of the rotary screw 123 is provided with a second slide 124, and both ends of the second slide 124 are slidably inserted in the second guide slot 122.

[0055] Taking the loading assembly on the left as an example, when the device needs to adjust the loading angle of the loader 40, the rotating drive member 125 at the top of the left column assembly works to drive the rotating screw 123 to rotate relative to the frame, and the second slide plate 124 is driven by the rotation of the rotating screw 123, and slides up and down along the rotating screw 123, thereby driving the push-pull rod 33 to move. The push-pull rod 33 is rotationally connected to the arc slider 32, causing the arc slider 32 to slide on the upper arc slide 31, and the end of the loader 40 away from the turntable 100 is fixedly connected to the arc slider 32, thereby causing the loader 40 to rotate around the hinge hole 103 on the left to achieve adjustment of the loading angle. After the adjustment is completed, the drive box locks the second slide plate 124, thereby locking the position of the loader 40.

[0056] The rotary screw 123 of the present application can be a ball screw or a trapezoidal screw, and the specific structure can be adjusted according to the loading conditions. The rotary drive member 125 can be driven by a servo motor + reducer directly, but is not limited to, or indirectly by a motor + gear belt.

[0057] In addition, in order to enable both ends of the bracket 20 to slide up and down along the second guide slots 122 of the column 12, a lift is provided in the frame to drive the bracket 20 to move up and down along the column 12. By adjusting the position of the arc-shaped slide 31 on the bracket 20 and the vertical height of the bracket 20, the position of the center of the circle can be changed.

[0058] In the embodiment of the present invention, a mounting base 104 is provided at the bottom of the turntable 100. Figure 5As shown, the bottom plate 11 is provided with a plurality of first mounting hole groups, the plurality of first mounting hole groups are arranged along the width direction, each of the first mounting hole groups comprises first mounting holes 111 arranged along the length direction, and the mounting seat 104 and the bottom plate 11 are connected by fasteners penetrating the mounting seat 104 and at least two first mounting holes 111. The turntable 100 and the mounting seat 104 are fixed by bolts, when it is needed to change the position of the turntable 100 on the bottom plate 11, the fasteners between the bottom plate 11 and the mounting seat 104 are disassembled, and then the mounting seat 104 and the bottom plate 11 are fixed and connected by fasteners at the first mounting holes 111 at the corresponding position.

[0059] According to the application, the first mounting holes 111 are arranged on the bottom plate 11, the fixing points of the mounting seat 104 can be adjusted according to different turntables 100, the position of the turntable 100 on the bottom plate 11 can be adjusted, the loading test of different turntables 100 is facilitated, and the applicability of the whole turntable test device is stronger.

[0060] As shown in the figure, Figure 5 The bottom plate 11 is also provided with a plurality of second mounting hole groups, the plurality of second mounting hole groups are distributed at the four corners of the bottom plate 11, each of the second mounting hole groups comprises at least one second mounting hole 112, and the columns 12 in two column assemblies are respectively arranged in the second mounting holes 112. When the columns 12 are installed, fasteners such as bolts or screws are used to penetrate the second mounting holes 112 in sequence, so that the columns 12 and the bottom plate 11 are connected. Since the number of columns 12 is four, the number of second mounting hole groups is also four, each of the second mounting hole groups corresponds to one column 12, and the assembled rack is arranged in the form of a quadrangle on the bottom plate 11.

[0061] In the embodiment of the application, a turntable test system is also provided, the turntable test system comprises a control unit and the turntable test device as described above, the control unit is electrically connected with the lifting machine and the rotary driving member 125, and the test process of the turntable test device is comprehensively controlled by the control unit, so that the test process of the turntable test device can be monitored and controlled. Specifically, in the test process, the turntable test device is responsible for simulating multi-working condition loading on the turntable 100, the control unit is responsible for controlling the loading working condition and load of the turntable test device, and the whole loading process is monitored. The control unit can adopt various control modes such as single-chip microcomputer, industrial computer or PLC. In addition, the loading assembly further comprises a controller for controlling the loading driving force of the loading device 40, and the controller is integrated in the control unit. Since the turntable test system adopts all the embodiments of the above-mentioned turntable test device, the turntable test system has all the beneficial effects of the turntable test device, and will not be described in detail here.

[0062] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of the present invention, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0063] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0064] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.

[0065] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A turntable test device, characterized in that: include: A frame comprising a base plate (11) for supporting a turntable (100) and a column assembly provided on the base plate (11); a bracket (20) spaced above the turntable (100) and slidably engaged with the column assembly; a crank slider mechanism (30) disposed on the bracket (20) and comprising a crank slider assembly and an arcuate slideway (31), wherein one end of the crank slider assembly is pivotally connected to the column assembly and is capable of vertically moving along the extension direction of the column assembly, and the other end is in sliding engagement with the arcuate slideway (31); The loading assembly comprises a loader (40), wherein a first end of the loader (40) is hinged to the turntable (100) and is used to apply a loading force to the turntable (100), and the crank slider assembly is used to drive the second end of the loader (40) to swing in an arc with the hinge point as the center.

2. The turntable test device according to claim 1, characterized in that: The turntable test device further includes a linear drive mechanism provided on the frame, and the crank slider assembly includes: A push-pull rod (33), wherein the linear drive mechanism is pivotally connected to a first end of the push-pull rod (33) and is used to drive the push-pull rod (33) to reciprocate in a vertical direction; and The arc slider (32) is pivotally connected to the second end of the push-pull rod (33), and the arc slider (32) slides circumferentially through the arc slideway (31). The bottom surface of the arc slider (32) is fixedly connected to the second end of the loader (40).

3. The turntable test device according to claim 1, characterized in that: The inner concave surface of the arc-shaped slideway (31) is arranged toward one side of the turntable (100), and both ends of the arc-shaped slideway (31) are slidably matched with the bracket (20) and can slide along the length direction of the bracket (20).

4. The turntable test device according to claim 3, characterized in that: The bracket (20) includes two spaced support rods (21), each of which is provided with a first guide slot (22) along its length. Both ends of the arc-shaped slideway (31) are connected to a first slide plate (23), and both ends of the first slide plate (23) are in sliding engagement with the first guide slot (22).

5. The turntable test device according to claim 2, characterized in that: The number of the loading components is two groups. The turntable (100) includes two triangular upright plates (101) arranged at intervals. Two hinge holes (103) are correspondingly opened on each of the triangular upright plates (101). The two triangular upright plates (101) are connected by a connecting pin (102). The connecting pin (102) sequentially passes through the corresponding hinge holes (103) on the two triangular upright plates (101). Each of the connecting pins (102) is connected to a group of the loading components.

6. The turntable test device according to claim 5, characterized in that: There are two brackets (20) arranged at intervals in the vertical direction, each bracket (20) correspondingly carries a group of loading components, and the distance between the two brackets (20) is greater than the height of the arc-shaped slideway (31).

7. The turntable test device according to claim 6, characterized in that: The loading components and the crank slider mechanisms (30) are of the same number and are connected accordingly. The push-pull rods (33) connected to each group of the loading components are tilted and extend through the bracket (20) to the linear drive mechanism and are connected to the second slide plate (124).

8. The turntable test device according to claim 7, characterized in that: The column assembly comprises two columns (12) arranged at intervals, a support seat (121) is connected between the two columns (12), the horizontal plane of the support seat (121) is higher than the horizontal plane of the two brackets (20), and the relative inner side wall of each column (12) is provided with a second guide slot (122) in the vertical direction; the linear drive mechanism comprises: A rotary drive member (125) is provided at the top ends of the two upright posts (12); A rotating screw rod (123) extends in a vertical direction and is located between the two upright posts (12). One end of the rotating screw rod (123) is electrically connected to the rotating drive member (125), and the other end is fixedly connected to the support seat (121). The outer peripheral thread sleeve of the rotating screw rod (123) is provided with the second slide plate (124), and both ends of the second slide plate (124) are slidably inserted into the second guide slot (122).

9. The turntable test device according to any one of claims 1 to 8, characterized in that: The bottom of the turntable (100) is provided with a mounting seat (104), and the bottom plate (11) is provided with multiple rows of first mounting hole groups, the multiple rows of the first mounting hole groups are arranged at intervals along the width direction, and each row of the first mounting hole groups includes first mounting holes (111) arranged at intervals along the length direction, and the mounting seat (104) and the bottom plate (11) are sequentially connected to the mounting seat (104) and at least two of the first mounting holes (111) via fasteners.

10. The turntable test device according to claim 8, characterized in that: The base plate (11) is also provided with a plurality of second mounting hole groups, which are respectively distributed at the four corners of the base plate (11), each second mounting hole group including at least one second mounting hole (112), and the columns (12) in the two groups of column assemblies are respectively installed corresponding to the second mounting holes (112).

11. A turntable test system, characterized in that: The turntable test system comprises a control unit and the turntable test device according to any one of claims 1 to 10, wherein the control unit is used to monitor and control a test process of the turntable test device.

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