Measuring tool for installation and calibration of 3D automatic leveling system

Abstract

The utility model relates to the technical field of engineering machinery, in particular to a measuring tool for installation and calibration of a 3D (three-dimensional) automatic leveling system, which comprises a casing, a positioning column coaxially and fixedly connected to the bottom of the casing, a rotary motor vertically and fixedly mounted in an inner cavity of the casing, and a rotating shaft coaxially and fixedly connected to a motor shaft of the rotary motor. The upper end of the rotating shaft penetrates through a rotating hole in the top of the shell and is coaxially and fixedly connected to the bottom of a rotary disc, the bottom of one end of the mounting plate is fixedly connected to the top of the rotary disc, and the other end of the mounting plate horizontally extends to one side of the rotary disc; a linear guide rail is fixedly connected to one vertical plate face of the installation plate in the length direction of the installation plate, a sliding block is movably installed on the linear guide rail in a matched mode, a driving assembly is arranged on the upper portion of the sliding block, and a measuring assembly is arranged on the lower portion of the sliding block. The beneficial effects of the utility model are that the measuring efficiency and accuracy are improved, and the operation convenience of the tool is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a measuring tool used for installation and calibration of a 3D automatic leveling system. Background Art

[0002] When traditional graders or bulldozers are performing construction operations, they need to be equipped with specialized personnel to perform simultaneous measurement work. The personnel first give the site elevation and bulldozing thickness, and then the driver drives the vehicle to level the land to reach the designed elevation, and finally the personnel review it. The operation vehicle equipped with a 3D automatic leveling system achieves a perfect combination of measurement and bulldozing. It can achieve simultaneous measurement and bulldozing by controlling the lifting and lowering of the operation device in real time, making the accuracy of the operation very high after completion, and there is no need for measurement personnel to review, thus saving manpower and greatly improving efficiency.

[0003] For example, a patent document with patent publication number CN211477056U discloses a ground height measuring device for use in a motor grader, wherein the motor grader includes a machine body, a traction frame assembly mounted on one end of the machine body, and a bucket mounted on the traction frame assembly and away from one end of the machine body; the ground height measuring device for use in the motor grader includes a first antenna disposed on the top of the bucket, a computing device disposed in the machine body, and a second antenna mounted on the machine body.

[0004] When installing and debugging the 3D automatic leveling system, in order to ensure the accuracy of the antenna installation position and thus ensure the operation accuracy, it is often necessary to accurately measure the dimensional parameters after establishing an accurate vehicle model. However, the traditional method is often to directly measure the three-dimensional dimensions (x, y, z) of the vehicle model with a steel ruler. Since the mast where the antenna is installed is at a high height, not only is the operation difficult and the measurement efficiency low, but it is also difficult to ensure the verticality of the steel ruler during measurement, and thus the measurement accuracy cannot be guaranteed, resulting in large errors.

[0005] To this end, the utility model optimizes and improves the problems of great measurement difficulty, poor accuracy and low efficiency in the prior art, and hereby proposes a new tool that can automatically and accurately measure the three-dimensional dimensions of a vehicle model to better solve the problems in the prior art. Utility Model Content

[0006] The utility model is to solve one of the above-mentioned technical problems, and the technical scheme adopted is: a measuring tool for installation and calibration of a D automatic leveling system, comprising a shell, a positioning column is coaxially fixedly connected to the bottom of the shell, a rotary motor is vertically fixedly installed in the inner cavity of the shell, a motor shaft of the rotary motor is coaxially fixedly connected to a rotating shaft, the upper end of the rotating shaft passes through the rotating hole at the top of the shell and is coaxially fixedly connected to the bottom of a rotating disk, and also comprises a vertically arranged mounting plate, the bottom of one end of the mounting plate is fixedly connected to the top of the rotating disk, the other end of the mounting plate extends horizontally to one side of the rotating disk, a linear guide rail is fixedly connected to one of the vertical plate surfaces of the mounting plate along its length direction, a slider is movably installed on the linear guide rail, a driving assembly is provided at the upper part of the slider, and a measuring assembly is provided at the lower part of the slider, and the positioning column is used to be inserted into the inner cavity of the upper end of the mast in the working state.

[0007] In any of the above schemes, preferably, the measuring assembly includes a laser distance measuring component and a scale identification component, the laser distance measuring component is fixedly installed on the lower part of the vertical side wall of the slider, and the scale identification component is fixedly arranged below the slider.

[0008] In any of the above schemes, preferably, the laser ranging component includes a connecting plate, one end of the connecting plate is fixedly connected to the lower part of the vertical side wall of the slider, and the other end of the connecting plate extends horizontally to one side of the slider, a laser transmitter is fixedly installed at the bottom of one end of the connecting plate, and a laser receiver is fixedly installed at the bottom of the other end of the connecting plate.

[0009] In any of the above schemes, preferably, the scale identification member includes a first mounting bar arranged below the slider, the first mounting bar is fixedly connected to the corresponding position of the side wall of the mounting plate along the length direction thereof, a scale is fixedly connected to the vertical side wall of the first mounting bar along its length direction, a scale is provided on the upper part of the scale, and also includes a vertically arranged pointer, the upper end of the pointer is fixedly connected to the corresponding position of the bottom of the slider, and the lower end of the pointer is arranged close to the side of the scale with the scale.

[0010] In any of the above solutions, preferably, the starting point of the scale is located on the axis of the mast.

[0011] In any of the above solutions, it is preferred that the vertical center lines of the laser transmitter, the laser receiver and the pointer are arranged in the same plane.

[0012] In any of the above schemes, preferably, the driving assembly includes a second mounting bar arranged above the slider, the second mounting bar is fixedly connected to the corresponding position of the side wall of the mounting plate along the length direction thereof, a rack is fixedly connected to the vertical side wall of the second mounting bar along its length direction, a servo motor is fixedly connected to the upper part of the vertical side wall of the slider, the motor shaft of the servo motor is vertically arranged upward and coaxially fixedly connected with a gear, and the gear is meshingly connected to the rack.

[0013] In any of the above schemes, it is preferred that a plurality of first abutment plates are fixedly connected to the circumferential outer surface of the lower end of the shell at axial intervals, and second abutment plates are fixedly connected to corresponding positions of the circumferential outer surface of the upper end of the mast, and the corresponding first abutment plates and second abutment plates are fixedly connected by matching bolts and nuts in the working state.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model drives the slider to slide along the linear guide rail through a servo motor, thereby driving the pointer to move along the scale. At the same time, the laser emitted by the laser emitter irradiates the designated position of the bucket blade to determine the final position of the slider, thereby determining the pointer index, and then quickly and automatically measuring the dimensions of the vehicle model in the X and Y directions in the horizontal plane, greatly improving the measurement efficiency and accuracy.

[0016] 2. The utility model drives the turntable to rotate through a rotary motor, thereby causing the mounting plate to rotate accordingly, so that it can be flexibly and quickly switched between two workstations perpendicular to the bucket and parallel to the bucket, thereby respectively realizing the measurement of the dimensions in the X and Y directions in the horizontal plane of the vehicle model, thereby improving the operating convenience of the tool and avoiding the need to climb high for operation.

[0017] 3. The utility model can accurately measure the specific vertical Z dimension of the vehicle model through the cooperation of the laser transmitter and the laser receiver, so as to further obtain the accurate three-dimensional dimension of the vehicle model, thereby facilitating the installation and debugging of the antenna of the subsequent automatic leveling system, thereby improving the operation accuracy of the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solution of the specific implementation of the utility model, the following will briefly introduce the drawings required for the specific implementation. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, each element or component is not necessarily drawn according to the actual scale.

[0019] Figure 1It is a schematic diagram of the connection structure of the measuring tool of the utility model when it is in a working state in the front view direction.

[0020] Figure 2 It is a schematic diagram of the connection structure of the measuring tool of the utility model when it is in a working state when viewed from the side.

[0021] Figure 3 for Figure 1 A partial enlarged view of point A in the middle.

[0022] Figure 4 It is a partial cross-sectional view of the connection between the measuring tool of the utility model and the mast.

[0023] Figure 5 It is a partial cross-sectional view of the connection structure of the driving component and the measuring component of the utility model in the side view.

[0024] Figure 6 for Figure 4 A partial enlarged view of point B in the middle.

[0025] Figure 7 for Figure 4 A partial enlarged view of point C in the middle.

[0026] In the figure, 1. housing; 2. positioning column; 3. rotary motor; 4. rotary disk; 5. mounting plate; 6. linear guide; 7. slider; 8. connecting plate; 9. laser transmitter; 10. laser receiver; 11. first mounting bar; 12. scale; 13. pointer; 14. second mounting bar; 15. rack; 16. servo motor; 17. gear; 18. first abutment plate; 19. second abutment plate; 20. bolt; 21. nut; 22. mast; 23. bucket; 24. rotating shaft. DETAILED DESCRIPTION

[0027] The following is a detailed description of the embodiments of the technical solution of the utility model in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the scope of protection of the utility model. The specific structure of the utility model is as follows Figure 1-Figure 7 as shown in .

[0028] A measuring tool for installation and calibration of a 3D automatic leveling system, comprises a shell 1, a positioning column 2 is coaxially fixedly connected to the bottom of the shell 1, a rotary motor 3 is vertically fixedly installed in the inner cavity of the shell 1, a motor shaft of the rotary motor 3 is coaxially fixedly connected to a rotating shaft 24, the upper end of the rotating shaft 24 passes through the rotating hole at the top of the shell 1 and is coaxially fixedly connected to the bottom of a rotating disk 4, and also comprises a vertically arranged mounting plate 5, the bottom of one end of the mounting plate 5 is fixedly connected to the top of the rotating disk 4, the other end of the mounting plate 5 extends horizontally to one side of the rotating disk 4, a linear guide rail 6 is fixedly connected to one of the vertical plate surfaces of the mounting plate 5 along its length direction, a slider 7 is movably installed on the linear guide rail 6, a driving assembly is provided on the upper part of the slider 7, and a measuring assembly is provided on the lower part of the slider 7, and the positioning column 2 is used to be inserted into the inner cavity at the upper end of the mast 22 in the working state.

[0029] The circumferential outer surface of the positioning column 2 is fitted with the circumferential inner surface of the upper end of the mast 22. When working, the positioning column 2 of the measuring tool is inserted into the upper end of the mast 22 to achieve the positioning and placement of the measuring tool, and then complete the measurement of the three-dimensional dimensions (X, Y, Z) of the vehicle model. X is the vertical distance between the axial direction of the mast 22 and the tip of the bucket 23 in the horizontal plane, Y is the vertical distance between the axial direction of the mast 22 and the side edge of the bucket 23 in the horizontal plane, and Z is the vertical height distance between the measuring component and the tip of the bucket 23 in the vertical plane.

[0030] The motor shaft of the rotary motor 3 is coaxially fixedly connected to the lower end of the rotating shaft 24 through a coupling, and the motor shaft of the rotary motor 3, the rotating shaft 24 and the mast 22 are axially arranged in a colinear manner. A bearing is fixedly installed in the mounting hole at the corresponding position on the top of the housing 1, and the rotating shaft 24 is connected to the bearing therein by a key connection. The rotary motor 3 drives the rotating shaft 24 to rotate, and then drives the rotating disk 4 to rotate synchronously, and finally makes the mounting plate 5 and various structures fixedly installed on the same side wall thereof rotate together around the axial direction of the rotating shaft 24.

[0031] By providing feedback through the existing encoder, and then under the existing program control, the rotation angle of the motor shaft of the rotary motor 3 can be precisely controlled, so that the mounting plate 5 and the structures on its side wall can be rotated to the designated workstations, thereby completing the measurement of the three-dimensional dimensions (X, Y, Z) of the vehicle model.

[0032] When it is necessary to measure X and Z, the mounting plate 5 is driven by the rotary motor 3 to move to a position perpendicular to the length direction of the bucket 23, and then driven by the drive assembly, the slider 7 slides along the linear guide 6, thereby driving the measuring assembly to move synchronously, and finally moves to the designated position and completes the measurement of X and Z. When it is necessary to measure Y, the mounting plate 5 is driven by the rotary motor 3 to move to a position parallel to the length direction of the bucket 23, and then the slider 7 is driven by the drive assembly to slide along the linear guide 6 again, further driving the measuring assembly to move horizontally, and finally moves to the designated position and completes the measurement of Y.

[0033] In any of the above schemes, it is preferred that the measuring component includes a laser distance measuring component and a scale marking component, the laser distance measuring component is fixedly installed on the lower part of the vertical side wall of the slider 7, and the scale marking component is fixedly arranged below the slider 7.

[0034] The laser distance measuring component can emit laser vertically downward, which is used to determine the final position of the slider 7. Driven by the slider 7, the laser distance measuring component and the scale marking component move synchronously. When the laser of the laser distance measuring component irradiates the corresponding position of the blade of the bucket 23, the slider 7 stops moving, and then the specific values ​​of X and Y are determined by the scale marking component. At the same time, the value of Z can be measured through the distance measuring function of the laser distance measuring component.

[0035] In any of the above schemes, it is preferred that the laser ranging component includes a connecting plate 8, one end of the connecting plate 8 is fixedly connected to the lower part of the vertical side wall of the slider 7, and the other end of the connecting plate 8 extends horizontally to one side of the slider 7, a laser transmitter 9 is fixedly installed at the bottom of one end of the connecting plate 8, and a laser receiver 10 is fixedly installed at the bottom of the other end of the connecting plate 8.

[0036] The laser transmitter 9 and the laser receiver 10 are both existing structures. The two are fixedly connected to the connecting plate 8 at intervals, and then driven to move synchronously by the slider 7. The laser transmitter 9 includes a laser diode that can generate a high-energy density laser beam. When current passes through the laser diode, it will excite the laser material to generate laser light and convert it into visible light or infrared light. At the same time, the laser transmitter 9 also includes an optical lens for focusing the laser beam to form a collimated laser beam. The laser receiver 10 is used to receive the laser pulse reflected from the target object. It has the characteristics of high sensitivity and fast response, and can accurately capture the reflected laser signal. It is equipped with a receiving photodiode for converting the received optical signal into an electrical signal. After the laser receiver 10 receives the laser emitted by the laser transmitter 9, the measurement result is calculated through the matching existing clock module and control processing module.

[0037] The laser emitter 9 emits a laser, and when it irradiates the designated position of the blade of the bucket 23, the drive assembly stops driving the slider 7, and then determines the values ​​of X and Y through the scale identification member. At the same time, through the cooperation of the laser emitter 9 and the laser receiver 10, the value of Z can be determined.

[0038] In any of the above schemes, it is preferred that the scale identification member includes a first mounting bar 11 arranged below the slider 7, the first mounting bar 11 is fixedly connected to the corresponding position of the side wall of the mounting plate 5 along the length direction thereof, and a scale 12 is fixedly connected to the vertical side wall of the first mounting bar 11 along its length direction, the upper part of the scale 12 is provided with scales, and also includes a vertically arranged pointer 13, the upper end of the pointer 13 is fixedly connected to the corresponding position of the bottom of the slider 7, and the lower end of the pointer 13 is arranged close to the side of the scale 12 with the scale.

[0039] The driving assembly drives the slider 7 to move along the linear guide 6, thereby driving the pointer 13 to translate along the side of the scale 12 with scales. After the slider 7 is moved to the specified position by the laser transmitter 9, the scale corresponding to the pointer 13 at this time is read out to obtain the measured value.

[0040] In any of the above solutions, it is preferred that the scale starting point of the scale 12 is located on the axis of the mast 22 .

[0041] Since X is the vertical distance between the axial direction of the mast 22 and the tip of the blade of the bucket 23, and Y is the vertical distance between the axial direction of the mast 22 and the side edge of the blade of the bucket 23, the 0 scale position of the scale 12 is set on the axial direction of the mast 22, and the reading can be directly read to obtain the required measured value, without having to consider the distance between the mast 22 and the 0 scale of the scale 12 later.

[0042] In any of the above solutions, it is preferred that the vertical center lines of the laser transmitter 9, the laser receiver 10 and the pointer 13 are arranged in the same plane.

[0043] This ensures that the projections of the axes of the laser emitter 9 and the laser receiver 10 on the scale 12 remain consistent with the projection of the vertical center line of the pointer 13 on the scale 12, so that the positions of the laser emitter 9 and the laser receiver 10 can be directly determined by the reading of the pointer 13, thereby facilitating measurement operations.

[0044] In any of the above schemes, it is preferred that the driving assembly includes a second mounting bar 14 arranged above the slider 7, the second mounting bar 14 is fixedly connected to the corresponding position of the side wall of the mounting plate 5 along the length direction thereof, a rack 15 is fixedly connected to the vertical side wall of the second mounting bar 14 along its length direction, a servo motor 16 is fixedly connected to the upper part of the vertical side wall of the slider 7, the motor shaft of the servo motor 16 is vertically upwardly arranged and coaxially fixedly connected with a gear 17, and the gear 17 is meshingly connected to the rack 15.

[0045] The servo motor 16 works and drives the gear 17 to rotate. Under the meshing connection between the gear 17 and the rack 15, the slider 7 is horizontally displaced along the linear guide rail 6.

[0046] In any of the above schemes, it is preferred that a plurality of first abutment plates 18 are fixedly connected to the circumferential outer surface of the lower end of the shell 1 at axial intervals, and second abutment plates 19 are fixedly connected to corresponding positions of the circumferential outer surface of the upper end of the mast 22, and the corresponding first abutment plates 18 and second abutment plates 19 are fixedly connected by matching bolts 20 and nuts 21 respectively in the working state.

[0047] Through holes for the bolts 20 to pass through are respectively opened at corresponding positions on the first abutment plate 18 and the second abutment plate 19, and then the fixed connection between the shell 1 and the mast 22 is achieved through the threaded connection of the bolts 20 and the nuts 21, and the pressing effect of the first abutment plate 18 and the second abutment plate 19 on the two.

[0048] Specific working principle:

[0049] The operator first drives the turntable 4 to rotate accordingly through the rotary motor 3, so that the mounting plate 5 is moved to a position perpendicular to the length direction of the bucket 23, and then, driven by the servo motor 16 and the meshing transmission of the gear 17 and the rack 15, the slider 7 slides horizontally along the linear guide 6, thereby driving the laser transmitter 9, the laser receiver 10 and the pointer 13 to move synchronously accordingly, until the laser emitted by the laser transmitter 9 irradiates the tip of the blade of the bucket 23, and then reads the scale reading corresponding to the pointer 13 on the scale 12 at this time, so as to measure the specific value of X, and at the same time, through the cooperation of the laser transmitter 9 and the laser receiver 10, the vertical spacing between the laser transmitter 9 and the tip of the blade of the bucket 23 is measured, so as to further obtain the specific value of Z.

[0050] Then, the mounting plate 5 is driven to rotate by the rotary motor 3 to move it to a position parallel to the length direction of the bucket 23. Then, driven by the servo motor 16, the slider 7 slides along the linear guide rail 6, so that the laser emitted by the laser emitter 9 irradiates the side edge of the blade of the bucket 23. Then, the specific value of Y is obtained by reading the scale specified by the pointer 13.

[0051] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

[0052] The matters not described in detail in the present invention are all known technologies to those skilled in the art.

Claims

1. A measuring tool used for installation and calibration of 3D automatic leveling systems, characterized by: The invention comprises a shell (1), the bottom of which is coaxially fixedly connected to a positioning column (2), an inner cavity of the shell (1) is vertically fixedly installed with a rotary motor (3), the motor shaft of the rotary motor (3) is coaxially fixedly connected to a rotating shaft (24), the upper end of the rotating shaft (24) passes through a rotating hole at the top of the shell (1) and is coaxially fixedly connected to the bottom of a rotating disk (4), and also comprises a vertically arranged mounting plate (5), the bottom of one end of the mounting plate (5) is fixedly connected to the top of the rotating disk (4), the other end of the mounting plate (5) extends horizontally to one side of the rotating disk (4), a linear guide rail (6) is fixedly connected to one vertical plate surface of the mounting plate (5) along its length direction, a slider (7) is movably mounted on the linear guide rail (6), a driving assembly is provided on the upper part of the slider (7), and a measuring assembly is provided on the lower part of the slider (7), and the positioning column (2) is used to be inserted into the inner cavity of the upper end of the mast (22) in the working state.

2. The measuring tool for installation and calibration of a 3D automatic leveling system according to claim 1, characterized in that: The measuring assembly comprises a laser distance measuring component and a scale identification component, the laser distance measuring component is fixedly mounted on the lower part of the vertical side wall of the slider (7), and the scale identification component is fixedly arranged below the slider (7).

3. The measuring tool for installation and calibration of a 3D automatic leveling system according to claim 2, characterized in that: The laser distance measuring component comprises a connecting plate (8), one end of the connecting plate (8) is fixedly connected to the lower part of the vertical side wall of the slider (7), and the other end of the connecting plate (8) extends horizontally to one side of the slider (7), a laser transmitter (9) is fixedly mounted on the bottom of one end of the connecting plate (8), and a laser receiver (10) is fixedly mounted on the bottom of the other end of the connecting plate (8).

4. The measuring tool for installation and calibration of a 3D automatic leveling system according to claim 3, characterized in that: The scale identification member comprises a first mounting bar (11) arranged below the slider (7), the first mounting bar (11) being fixedly connected to a corresponding position of a side wall of the mounting plate (5) along the length direction thereof, a scale (12) being fixedly connected to a vertical side wall of the first mounting bar (11) along the length direction thereof, the scale (12) having scales on its upper portion, and a vertically arranged pointer (13), the upper end of the pointer (13) being fixedly connected to a corresponding position of a bottom of the slider (7), and the lower end of the pointer (13) being arranged close to a side of the scale (12) having scales.

5. The measuring tool for installation and calibration of a 3D automatic leveling system according to claim 4, characterized in that: The scale starting point of the scale ruler (12) is located on the axis of the mast (22).

6. The measuring tool for installation and calibration of a 3D automatic leveling system according to claim 5, characterized in that: The vertical center lines of the laser transmitter (9), the laser receiver (10) and the pointer (13) are arranged in the same plane.

7. The measuring tool for installation and calibration of a 3D automatic leveling system according to claim 6, characterized in that: The drive assembly comprises a second mounting bar (14) arranged above the slider (7); the second mounting bar (14) is fixedly connected to a corresponding position of a side wall of the mounting plate (5) along the length direction thereof; a rack (15) is fixedly connected to the vertical side wall of the second mounting bar (14) along the length direction thereof; a servo motor (16) is fixedly connected to the upper part of the vertical side wall of the slider (7); a motor shaft of the servo motor (16) is arranged vertically upward and is coaxially fixedly connected to a gear (17); the gear (17) is meshingly connected to the rack (15).

8. The measuring tool for installation and calibration of a 3D automatic leveling system according to claim 7, characterized in that: A plurality of first abutment plates (18) are fixedly connected to the circumferential outer surface of the lower end of the shell (1) at axial intervals, and second abutment plates (19) are fixedly connected to corresponding positions of the circumferential outer surface of the upper end of the mast (22). In a working state, the corresponding first abutment plates (18) and second abutment plates (19) are fixedly connected by matching bolts (20) and nuts (21).

Images