CN113653918A

CN113653918A - Hydraulic vibration exciter installation device

Info

Publication number: CN113653918A
Application number: CN202110921375.1A
Authority: CN
Inventors: 李海超; 庞福振; 张航; 贾地; 杜圆; 汤旸; 秦宇璇; 江沛
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2021-11-16
Anticipated expiration: 2041-08-11
Also published as: CN113653918B

Abstract

The invention relates to the technical field of vibration exciter mounting equipment, in particular to a hydraulic vibration exciter mounting device. The base of the adjustment base part of the device is connected with the bracket part. An arc-shaped slideway for the sliding of the workbench is arranged on the base. An arc positioning rack is arranged between the pair of arc slideways. The bottom of the workbench is provided with a limiting support with a limiting gear. The limiting gear is meshed with the arc-shaped positioning rack. The power end of the driving device is connected with the limit gear. The base is connected with the hydraulic support column through a flat plate. The hydraulic support column is provided with a first push rod and a second push rod which are used for adjusting the height of the flat plate. And a pump and an oil circuit manifold block are arranged on the side wall of the hydraulic support column. The tail end of the hydraulic support column is provided with a caster. The hydraulic support column is provided with the hydraulic system, so that the range of the vibration exciter capable of being excited accurately is enlarged, the contact point of the vibration exciter reaches the preset excitation position accurately, more stable excitation force is provided, and the effectiveness of an engineering test result is guaranteed.

Description

Hydraulic vibration exciter installation device

Technical Field

The invention relates to the technical field of vibration exciter mounting equipment, in particular to a hydraulic vibration exciter mounting device.

Background

The exciter is a device attached to mechanical equipment for generating exciting force, and can make the exciting element obtain a certain form and magnitude of vibration, so that it can be used for vibration and strength test of object. At present, when analyzing and testing vibration modes and the like of a mechanical structure, a testing method of performing single-point excitation and multi-point response by using a vibration exciter is generally adopted, each measuring point is excited by the vibration exciter, and the vibration modes and the like of the structure are analyzed according to the response of each measuring point of a structural member.

The existing vibration exciter equipment is usually provided with a tray, a semicircular arc area can be excited randomly around a rotating shaft, the tray is fixed in vertical height and cannot move freely in a plane. Moving and fixing the actuators is cumbersome for testing of multiple point actuation at different heights. For structural parts with large curvature change, the requirement of the semi-circular arc excitation area of the existing exciter on the installation of the exciter is too high, and a lot of inconvenience is brought to operators. Therefore, the vibration exciter has a larger excitation range and can be stably installed in engineering tests, and the vibration exciter has important significance.

Through search, chinese patent document CN106185733B discloses a simple hoisting device for a six-degree-of-freedom vibration exciter. The hoisting device comprises a square frame consisting of four supporting trusses with built-in slideways and eight horizontal trusses. Four corners at the lower end of the square frame are respectively provided with a steering wheel. Two horizontal sectional materials with adjustable positions are arranged on the upper end surface of the square frame. Each horizontal section bar is provided with two first lifting eyes. Each lifting lug is hinged with a thread locking component. The end parts of the four thread locking components are respectively hinged with the four second lifting lugs, and the four second lifting lugs are arranged on the vibration exciter. The device utilizes the structural characteristics of the horizontally-installed truss to realize the hoisting of the vibration exciters with different magnitudes, can determine the rationalization of the installation position of the vibration exciters by adjusting the connection relation among all the components, and ensures that the vibration exciters work stably and safely in the air.

However, when the hoisting device performs vibration mode analysis on a structural member with a large curvature change, it is difficult to adjust the installation position of the vibration exciter so that the excitation direction of the vibration exciter is perpendicular to the contact surface with the structural member, thereby affecting the validity of the test result. In other words, the hoisting device can only coincide the contact point of the vibration exciter with the measuring point on the structural member in space, and cannot adjust the excitation direction of the measuring point on the structural member.

In summary, in the process of performing vibration mode analysis on a structural member with a large curvature variation, how to design an installation and adjustment device for a vibration exciter, so that the vibration exciter excites excitation points at various heights of the structural member, and simultaneously, the vibration exciter can generate an excitation force on a hemispherical surface at the same height, thereby ensuring the stability and the continuity of the vibration exciter for applying the excitation force to the structural member with a large curvature variation, has become a technical problem to be solved urgently by those skilled in the art.

Disclosure of Invention

The invention aims to provide an installation and adjustment device for a vibration exciter in the process of carrying out vibration mode analysis on a structural part with large curvature change, so that the vibration exciter can excite excitation points on various heights of the structural part and can generate an exciting force on a hemispherical surface on the same height, and the stability and the continuity of the exciting force applied by the vibration exciter to the structural part with large curvature change are further ensured.

In order to achieve the purpose, the invention adopts the following scheme: the hydraulic vibration exciter mounting device comprises an adjusting seat component and a bracket component;

the adjusting seat component comprises a driving device, a base and a workbench connected with a tray of a vibration exciter, the base is connected with the support component, an arc-shaped slideway for the workbench to slide is arranged on the base, a pair of arc-shaped slideways are symmetrically distributed along the central line of the base, an arc-shaped positioning rack is arranged between the pair of arc-shaped slideways, a limiting support is arranged at the bottom of the workbench, a limiting gear is arranged on the limiting support, the limiting gear is meshed with the arc-shaped positioning rack, and the power end of the driving device is connected with the limiting gear;

the support component comprises a flat plate and a hydraulic support column, the flat plate is arranged at the head end of the hydraulic support column, the base is connected with the hydraulic support column through the flat plate, the hydraulic support column is provided with a first push rod and a second push rod for adjusting the height of the flat plate, the second push rod is nested in the first push rod, a pump and an oil circuit manifold block are arranged on the side wall of the hydraulic support column, and a caster wheel is arranged at the tail end of the hydraulic support column.

As preferred, the support component has many hydraulic support columns, is provided with the fixed column between the hydraulic support column, and the tip of fixed column passes through the pipe clamp and links to each other with the hydraulic support column, and the middle part of fixed column is provided with the telescoping device who supplies fixed column adjustment length. So set up, the fixed column of connection between many support columns has improved the whole rigidity of support parts greatly, is favorable to reducing the natural frequency of vibration exciter work frame, and the vibration exciter of being convenient for excites every measurement station on the structure that awaits measuring, and the telescoping device is used for adjusting the length of fixed column, and then realizes forming the adjustment of contained angle size between each hydraulic support column, has further promoted the stability that the vibration exciter produced the exciting force.

Preferably, the head end of the second push rod is provided with a spherical joint, and the bottom of the flat plate is provided with a spherical notch matched with the spherical joint. So set up, be convenient for change the angle between dull and stereotyped and the support column, be favorable to having the great structure of curvature change, optimize the bearing structure of support component to the adjustment seat part for the excitation direction of vibration exciter accords with actual demand more.

Preferably, the telescopic device is a direct current motor, the left telescopic part of the fixed column is connected with the direct current motor through a worm, and the right telescopic part of the fixed column is connected with the direct current motor through a worm. So set up, DC motor drives left pars contractilis and right pars contractilis simultaneously, realizes the two-way flexible of fixed column, is convenient for adjust the contained angle between each hydraulic support post.

Preferably, the driving device is a motor, the motor is connected with the limiting support through the fixing seat, the power end of the motor is connected with the limiting gear, and the base is provided with a button for controlling the motor. So set up, the workstation of being convenient for accomplishes workstation rotation angle's adjustment along the arc slide under the drive of motor, is favorable to vibration exciter fast speed adjusting excitation direction, has further reduced the degree of difficulty of vibration exciter clamping location in vibration mode analysis process.

Preferably, the driving device is a manual rocker, and the power end of the manual rocker is connected with the limiting gear. So set up, when the upset of motor drive workstation, also can realize the fine setting to workstation roll-over angle through the mode of rotating manual rocker, further improved the position precision of vibration exciter mounted position, and then promoted the validity of test result.

As the preferred, be provided with the scale plate on the base, be provided with the scale mark of sign workstation along arc slide turned angle on the scale plate, the scale mark is arranged at the equidistance on the scale plate. So set up, on the one hand make the upset position of workstation more accurate, on the other hand is convenient for record workstation's upset position to this is the reference standard, can in time revise the deviation of upset position in the experimentation, has further promoted the validity of test result.

Preferably, the caster wheel is a self-locking universal wheel. So set up, form the locking after the vibration exciter working frame removes the position on the adjustment horizontal plane of being convenient for, further promoted support element's stability.

Preferably, the arc-shaped slide way is an arc-shaped slide way, and the arc-shaped positioning rack is an arc-shaped positioning rack. So set up, after workstation height position confirms, convex slide can restrict the workstation and follow circular arc orbit and rotate, realizes letting the vibration exciter produce exciting force in the hemisphere face, has further guaranteed that the vibration exciter exerts exciting force's stability and continuation to the structure that the camber changes greatly.

When the hydraulic vibration exciter mounting device provided by the invention is used, firstly, hydraulic support columns with proper number are selected according to test requirements, bracket parts of corresponding support structures are assembled, and a self-contained tray of the vibration exciter is connected with a workbench. And after the workbench reaches the designated position, adjusting the contact point of the vibration exciter to abut against the structural part. When the position of an excitation point changes, the position is fixed again at a required height by adjusting the stroke of the hydraulic support column, the vertical height of the vibration exciter is changed, and the vibration excitation task is completed for the new excitation point. When the structural part is a curved surface and the relative angle between the vibration exciter and the horizontal plane needs to be adjusted, the manual rocker is rotated according to the scale plate on the base, the turnover angle of the workbench is accurately adjusted, and after the required position is reached, the workbench is locked, so that the excitation direction of the vibration exciter is relatively vertical to the surface of the structural part, and effective excitation force is generated. When the position of an excitation point needs to be accurately adjusted, the first push rod of the hydraulic support column is driven by the pump firstly, so that the vibration exciter is enabled to be close to the excitation point quickly, and then the second push rod of the hydraulic support column is driven by the pump, so that the vibration exciter can accurately reach the preset excitation point.

Compared with the prior art, the hydraulic vibration exciter mounting device provided by the invention has the following prominent substantive characteristics and remarkable progress:

1. the hydraulic support columns in the hydraulic vibration exciter mounting device are provided with the hydraulic system, so that the range of accurate excitation of the vibration exciter is improved, besides adjustment at different heights and different horizontal positions, when the positions of the measuring points of the structural part are close, the stroke of each hydraulic support column can be changed and the workbench in the mounting device can be adjusted as required, so that the contact points of the vibration exciter can accurately and conveniently reach the preset excitation position and are perpendicular to the contact surface of the structural part, therefore, the vibration exciter provides more stable and effective excitation force in the test process, and the validity of the engineering test result is ensured;

2. the base is provided with the arc-shaped slide way in the hydraulic vibration exciter mounting device, the power end of the driving device drives the workbench to overturn along the arc-shaped slide way, the mounting and adjusting structure of the vibration exciter is optimized in the process of implementing vibration mode analysis on a structural part with large curvature change, the excitable range of the vibration exciter is improved, the bracket part is arranged at the same height, the vibration exciter can generate exciting force on the hemispherical surface, and the stability and the continuity of the exciting force applied to the structural part with large curvature change by the vibration exciter are ensured.

Drawings

Fig. 1 is a schematic perspective view of a mounting device for a hydraulic vibration exciter according to an embodiment of the present invention;

FIG. 2 is a perspective view of the bracket assembly of FIG. 1;

FIG. 3 is a perspective view of the adjuster socket member of FIG. 1;

FIG. 4 is a front view of FIG. 3;

FIG. 5 is a schematic perspective view of a hydraulic prop;

FIG. 6 is a perspective view of a fixing post;

figure 7 is a schematic perspective view of the pipe clamp;

fig. 8 is a perspective view of the self-locking universal wheel.

Reference numerals: the vibration exciter comprises a vibration exciter 1, a tray 2, an adjusting seat component 3, a hydraulic support column 4, a fixed column 5, a pipe clamp 6, a caster 7, a flat plate 8, a screw 9, a nut 10, a gear pump 11, a workbench 12, a manual rocker 13, a base 14, a motor 15, a threaded hole 16, a limiting support 17, an arc-shaped positioning rack 18, a button 19, a scale plate 20, a first push rod 21, a second push rod 22, a spherical joint 23, a worm 24, a direct current motor 25, an arc-shaped slideway 26 and a self-locking universal wheel 27.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.

The hydraulic vibration exciter mounting device shown in fig. 1-8 is used for mounting and adjusting a vibration exciter in the process of carrying out vibration mode analysis on a structural member with large curvature change. The device is equipped with hydraulic system on the hydraulic support post, has improved the scope that the vibration exciter can accurate excitation. Besides being capable of being adjusted at different heights and different horizontal positions, when the positions of the measuring points of the structural member are relatively close, the contact points of the vibration exciter can accurately and conveniently reach the preset vibration exciting position by changing the stroke of each hydraulic column and adjusting a working platform in the mounting device according to requirements. The excitation direction of the vibration exciter is perpendicular to the contact surface of the structural part, so that the vibration exciter provides more stable and effective excitation force in the test process, and the effectiveness of the engineering test result is ensured.

As shown in fig. 1, a hydraulic exciter mounting apparatus includes an adjustment seat member 3 and a bracket member. As shown in fig. 3, the saddle member 3 comprises a driving means, a base 14 and a table 12 to which the tray 2 of the exciter 1 is connected. The base 14 is connected to the frame member. The base 14 is provided with an arc-shaped slide 26 on which the table 12 slides. A pair of arcuate runners 26 are symmetrically disposed along the centerline of the base 14. An arc-shaped positioning rack 18 is arranged between the pair of arc-shaped slideways 26. The bottom of the working table 12 is provided with a limit support 17. The limit support 17 is provided with a limit gear. The limit gear is meshed with the arc-shaped positioning rack 18. The power end of the driving device is connected with the limit gear.

Wherein, the power end of the driving device drives the worktable 12 to overturn along the arc-shaped slideway 26, so that the installation and adjustment structure of the vibration exciter 1 is optimized and the excitable range of the vibration exciter 1 is expanded in the process of carrying out vibration mode analysis on a structural member with large curvature change. The support parts are arranged at the same height, the vibration exciter 1 can generate exciting force on a hemispherical surface, and the stability and the continuity of the exciting force applied by the vibration exciter 1 to a structural part with large curvature change are ensured.

As shown in fig. 2, the bracket member includes a flat plate 8 and a hydraulic prop 4. The plate 8 is placed at the head end of the hydraulic support column 4. The base 14 is connected to the hydraulic prop 4 by means of a plate 8. As shown in fig. 5, the hydraulic prop 4 has a first push rod 21 and a second push rod 22 for adjusting the height of the plate 8. The second push rod 22 is nested in the first push rod 21. And a pump and an oil circuit manifold block are arranged on the side wall of the hydraulic support column 4. The tail end of the hydraulic support column 4 is provided with a caster 7.

Wherein, the hydraulic support column 4 can be selected as a telescopic hydraulic cylinder. The telescopic hydraulic cylinder is formed by sleeving two or more piston cylinders, and the piston of the piston cylinder at the previous stage is a cylinder barrel of the piston at the next stage. When pressure oil is introduced, the pistons extend out from large to small in sequence; when the piston retracts, the piston retracts from small to large in sequence. The pistons of each stage are extended in sequence to obtain a long stroke, and the axial dimensions of the cylinder are small when retracted in sequence.

For example, the maximum stroke of the hydraulic support column 4 is 1.5 m. Wherein the stroke of the first push rod 21 is 0.4 m. The stroke of the second push rod 22 is 0.5 m. The remaining stroke is the center distance after full retraction. The outer diameters of the circular cross sections are 30mm, 36mm and 42mm from top to bottom.

The pump may preferably be a gear pump 11. The gear pump 11 can be controlled in a remote control mode, when the height of the workbench 12 needs to be changed, the first push rod 21 and the second push rod 22 are lifted or lowered, and the contact point of the vibration exciter 1 is adjusted to the optimal excitation point at low speed, so that the vibration exciting task is completed.

The oil circuit integrated package is used for integrating the dispersed hydraulic oil circuit together, is convenient for control hydraulic oil work, and then realizes the control to 4 lengths of hydraulic support column.

As shown in fig. 8, the caster 7 may be selected as a self-locking caster 27. So set up, form the locking after being convenient for vibration exciter 1 work frame removes the position on the adjustment horizontal plane, further promoted support element's stability.

As shown in fig. 5, the head end of the second pushrod 22 is provided with a ball joint 23. The bottom of the plate 8 is provided with a spherical notch matching the spherical joint 23. So set up, be convenient for change the angle between dull and stereotyped 8 and the support column, be favorable to having the great structure of curvature change, optimize the bearing structure of support component to adjustment seat part 3 for vibration exciter 1's excitation direction accords with actual demand more.

As shown in fig. 2, the bracket member has a plurality of hydraulic support columns 4. A fixed column 5 is arranged between the hydraulic support columns 4. The end of the fixed column 5 is connected with the hydraulic support column 4 through a pipe clamp 6. The middle part of the fixing column 5 is provided with a telescopic device for adjusting the length of the fixing column 5. So set up, the fixed column 5 of connection between many support columns has improved the whole rigidity of support parts greatly, is favorable to reducing the natural frequency of vibration exciter 1 work frame, and the vibration exciter 1 of being convenient for stimulates every measurement station on the structure that awaits measuring, and the telescoping device is used for adjusting the length of fixed column 5, and then realizes forming the adjustment of contained angle size between each hydraulic support column 4, has further promoted the stability that vibration exciter 1 produced the exciting force.

According to the needs of actual test, hydraulic support post 4 of suitable quantity can be chooseed for use to the support part. The number of the hydraulic support columns 4 is preferably 3 to 5. As shown in fig. 2, the support member uses 4 hydraulic support columns 4 as the bottom support structure. All be connected with 1 fixed column 5 between the adjacent hydraulic support post 4 for further improve the whole rigidity of support components.

The pipe clamp 6 shown in fig. 7 includes a first clamping portion and a second clamping portion. The side wall of the first clamping part is connected with the side wall of the second clamping part. The first clamping part is provided with a first clamping hole. The second clamping part is provided with a second clamping hole. The axis of the first clamping hole is perpendicular to the axis of the second clamping hole. The first clamping part and the second clamping part clamp the clamped component in a fastening piece locking mode. As shown in fig. 2, the pipe clamp 6 realizes clamping connection of the fixing column 5 and the hydraulic support column 4 through a screw 9 and a nut 10.

As shown in fig. 6, the telescopic device is a dc motor 25. The left telescopic part of the fixed column 5 is connected with a direct current motor 25 through a worm 24. The right telescopic part of the fixed column 5 is connected with a direct current motor 25 through a worm 24. So set up, DC motor 25 drives left pars contractilis and right pars contractilis simultaneously, realizes the two-way flexible of fixed column 5, is convenient for adjust the contained angle between each hydraulic support post 4. Meanwhile, the end part of each fixed column 5 is also provided with a limit switch, and when the contact pipe clamp triggers the limit switch, the direct current motor 25 can automatically stop driving the fixed columns 5 to stretch. In addition, the whole support component is of a detachable structure, and the support structure can be adjusted according to the actual test condition. After the test is finished, the test bed can be disassembled into a plurality of parts, so that the test bed is convenient to place and transport. For example, the operating voltage of the dc motor 25 is 24V, the thrust is 500N, and the extension/contraction speed of the driving fixing column 5 is 12 mm/s.

For example, when the placement area for installing the vibration exciter 1 is narrow and the bottoms of the hydraulic support columns 4 cannot be supported on the same plane, the length of the fixing column 5 can be adjusted through the direct current motor 25, so that the support position of the hydraulic support columns 4 is adjusted, the specific stroke height of each hydraulic support column 4 is changed, the vibration exciter 1 can normally excite a measuring point, and a stable exciting force is generated.

As shown in fig. 3, the driving means may alternatively be a motor 15. The motor 15 is connected with the limit support 17 through a fixed seat. The power end of the motor 15 is connected with a limit gear. The base 14 is provided with a button 19 for controlling the motor 15. So set up, workstation 12 along arc slide 26 under the drive of motor 15 of being convenient for, accomplish the adjustment of workstation 12 rotation angle, be favorable to vibration exciter 1 quick adjustment excitation direction, further reduced vibration exciter 1 the degree of difficulty of clamping location in vibration mode analysis process.

As shown in fig. 4, the drive means may alternatively be a manual rocker 13. The power end of the manual rocker 13 is connected with a limit gear. So set up, when motor 15 drive workstation 12 upset, also can realize the fine setting to workstation 12 flip angle through the mode of rotating manual rocker 13, further improved the position accuracy of vibration exciter 1 mounted position, and then promoted the validity of test result.

As shown in fig. 3, a scale plate 20 is provided on the base 14. The scale plate 20 is provided with scale marks for marking the rotation angle of the workbench 12 along the arc-shaped slide way 26. The scale lines are arranged at equal intervals on the scale plate 20. Due to the arrangement, on one hand, the overturning position of the workbench 12 is more accurate; on the other hand, the overturning position of the workbench 12 is convenient to record, so that the overturning position can be corrected in time in the test process by taking the overturning position as a reference datum, and the effectiveness of the test result is further improved.

The arc-shaped slide way 26 is a circular arc-shaped slide way 26. The arc-shaped positioning rack 18 is a circular arc-shaped positioning rack 18. So set up, after workstation 12 height position confirms, circular arc slide 26 can restrict workstation 12 and rotate along the circular arc orbit, realizes letting vibration exciter 1 produce exciting force in the hemisphere face, has further guaranteed vibration exciter 1 to exert the stability and the continuation of exciting force to the structure that the camber changes greatly.

When the hydraulic vibration exciter mounting device provided by the embodiment of the invention is used, firstly, according to test requirements, a proper number of hydraulic support columns 4 are selected, bracket parts of corresponding support structures are assembled, and a self-contained tray 2 of a vibration exciter 1 is connected with a workbench 12. After the working platform 12 reaches the designated position, the contact point of the vibration exciter 1 is adjusted to abut against the structural member. When the position of an excitation point changes, the position is fixed again at a required height by adjusting the stroke of the hydraulic support column 4, and the vertical height of the vibration exciter 1 is changed to complete the vibration exciting task for the new excitation point. When the structural member is a curved surface and the relative angle between the vibration exciter 1 and the horizontal plane needs to be adjusted, the manual rocker 13 is rotated according to the scale plate 20 on the base 14, the overturning angle of the workbench 12 is accurately adjusted, and after the required position is reached, the workbench 12 is locked, so that the excitation direction of the vibration exciter 1 is relatively vertical to the surface of the structural member, and effective excitation force is generated. When the position of the excitation point needs to be accurately adjusted, the first push rod 21 of the hydraulic support column 4 is driven by the pump firstly, so that the vibration exciter 1 is enabled to be close to the excitation point quickly, and then the second push rod 22 of the hydraulic support column 4 is driven by the pump, so that the vibration exciter 1 can accurately reach the preset excitation point.

The present invention is not limited to the specific technical solutions described in the above embodiments, and other embodiments may be made in the present invention in addition to the above embodiments. It will be understood by those skilled in the art that various changes, substitutions of equivalents, and alterations can be made without departing from the spirit and scope of the invention.

Claims

1. The hydraulic vibration exciter mounting device is characterized by comprising an adjusting seat component and a bracket component;

2. The hydraulic vibration exciter mounting device according to claim 1, wherein the support member has a plurality of hydraulic support columns, fixed columns are arranged between the hydraulic support columns, the ends of the fixed columns are connected with the hydraulic support columns through pipe clamps, and a telescopic device for adjusting the length of the fixed columns is arranged in the middle of the fixed columns.

3. The hydraulic vibration exciter mounting device according to claim 1, wherein the head end of the second push rod is provided with a ball joint, and the bottom of the flat plate is provided with a ball notch matched with the ball joint.

4. The hydraulic vibration exciter mounting device according to claim 2, wherein the telescopic device is a direct current motor, the left telescopic portion of the fixed column is connected with the direct current motor through a worm, and the right telescopic portion of the fixed column is connected with the direct current motor through a worm.

5. The hydraulic vibration exciter mounting device according to claim 1, wherein the driving device is a motor, the motor is connected with the limiting support through a fixing seat, a power end of the motor is connected with a limiting gear, and a button for controlling the motor is arranged on the base.

6. The hydraulic vibration exciter mounting device according to claim 1, wherein the driving device is a manual rocker, and a power end of the manual rocker is coupled with a limit gear.

7. The hydraulic vibration exciter mounting device according to claim 1, wherein a scale plate is arranged on the base, scale lines for marking the rotation angle of the workbench along the arc-shaped slideway are arranged on the scale plate, and the scale lines are arranged on the scale plate at equal intervals.

8. The hydraulic vibration exciter mounting apparatus of claim 1, wherein the caster wheel is a self-locking universal wheel.

9. The hydraulic vibration exciter mounting device according to claim 1, wherein the arc-shaped slide way is an arc-shaped slide way, and the arc-shaped positioning rack is an arc-shaped positioning rack.