Vibrating rod position and angle adjustment device and adjustment method

Abstract

A vibrating rod position and angle adjustment device and adjustment method, relating to the technical field of engineering machinery. It comprises a mold frame, a cylinder mounting seat is fixedly provided on the upper end of the mold frame, a cylinder with its telescopic end facing forward is mounted on the cylinder mounting seat, a displacement sensor is built into the cylinder, the tail end of the cylinder is hinged to the cylinder mounting seat to form a hinge point A, the telescopic end of the cylinder is mounted with a vibrating rod mounting frame through a transmission link mechanism, and a vibrating rod is mounted on the vibrating rod mounting frame; the transmission link mechanism comprises an active arm, a fixed arm, a driving arm, and a driven arm, and a quadrilateral CDEF is formed between them, and at least one set of opposite sides of the quadrilateral CDEF is unequal. In the present invention, when the cylinder performs a telescopic action, the transmission of the transmission link mechanism can make the vibrating rod simultaneously lift and rotate, thereby adjusting both the height of the vibrating rod and the angle of the vibrating rod.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a vibration rod position and angle adjustment device and adjustment method. Background Art

[0002] The vibrator is a critical component of a slipform paver. Inserted into the working medium (usually cement concrete), its operating frequency, placement, and installation angle directly impact efficiency, the quality of the finished structure, and its strength. Since vibrator specifications are fixed, maximizing their efficiency requires extensive testing to determine the appropriate installation angles for different working depths. This means the vibrator's installation angle varies at different working depths, requiring adjustments to the working depth to be made simultaneously.

[0003] Currently, common adjustment mechanisms can only adjust the working depth individually. Traditional adjustment mechanisms have the following drawbacks: 1. The angle can only be adjusted manually, which is extremely labor-intensive when using a large number of vibrating rods, and the adjustment accuracy is difficult to control. 2. The adjustment actuator is close to the working medium, making it susceptible to contamination and difficult to protect. Contaminated by cement, the adjustment actuator is easily damaged. 3. The adjustment depth and angle can only be roughly estimated during installation and cannot be quantified, resulting in a low level of control. Summary of the Invention

[0004] The purpose of the present invention is to provide a vibration rod position and angle adjustment device, which has the advantages of simple structure, being able to simultaneously adjust the working depth and installation angle of the vibration rod, keeping the adjustment actuator away from the working medium pollution source, and monitoring the depth and angle of the vibration rod at any time, and can effectively solve the problems in the background technology.

[0005] The technical solution for achieving the above-mentioned object is: a vibrating rod position and angle adjustment device, comprising a mold frame, characterized in that: a cylinder mounting seat is fixedly provided at the upper end of the mold frame, a cylinder with a telescopic end facing forward is mounted on the cylinder mounting seat, a displacement sensor is built into the cylinder, the tail end of the cylinder is hinged to the cylinder mounting seat to form a hinge point A, the telescopic end of the cylinder is mounted on a vibrating rod mounting frame via a transmission connecting rod mechanism, and the vibrating rod is mounted on the vibrating rod mounting frame;

[0006] The transmission connecting rod mechanism includes an active arm, a fixed arm, a driving arm, and a driven arm. The fixed arm is vertically installed on the mold frame on the front side of the cylinder. The telescopic end of the cylinder is hinged to the upper end of the fixed arm through the active arm. One end of the active arm is hinged to the telescopic end of the cylinder to form a hinge point B, the middle part is hinged to the upper end of the fixed arm to form a hinge point C, and the other end is hinged to the upper end of the driving arm to form a hinge point D. The lower end of the fixed arm is hinged to one end of the driven arm to form a hinge point F, and the other end of the driven arm is hinged to the middle part of the driving arm to form a hinge point E. The lower end of the driving arm is fixed to the vibrating rod through a vibrating rod mounting frame.

[0007] Furthermore, the active arm has a triangular structure, the top corner of the active arm is hinged to the upper end of the fixed arm, one bottom corner of the active arm is hinged to the telescopic end of the oil cylinder, and the other bottom corner is hinged to the upper end of the driving arm.

[0008] Furthermore, the quadrilateral formed between the hinge points CDEF has at least one set of opposite sides that are unequal.

[0009] Furthermore, the upper end of the fixed arm is provided with a plurality of hinge holes arranged up and down, and the active arm is hinged to different hinge holes on the upper end of the fixed arm through the first pin shaft to control the length between the hinge points CF.

[0010] Furthermore, a row of hinge holes is provided in the middle of the driving arm, and the driven arm is hinged to different hinge holes on the vibration rod mounting frame through the second pin shaft to control the length between the hinge points DE.

[0011] Furthermore, multiple cylinders are installed on the mold frame through cylinder mounting seats, and the telescopic ends of the cylinders are respectively connected to the transmission connecting rod mechanism. The vibration rod mounting frame is fixedly connected between the driving arms of the transmission connecting rod mechanism. The vibration rod mounting frame includes a transversely arranged connecting frame, and the lower end of the connecting frame is connected to a parallel connecting rod, and multiple vibration rods are fixedly installed on the connecting rod through a clamp.

[0012] The present invention also provides a method for adjusting the position and angle adjustment device of a vibrating rod, which is characterized by: controlling the action of the oil cylinder to drive the hinge point B of the active arm to rotate with the hinge point C as the center;

[0013] With hinge point C as the coordinate origin and the trajectory equation of hinge point B listed, the rotation angle of BC is obtained based on the known relative coordinate positions of hinge points A and C and the length data between AB after the cylinder is actuated obtained by the displacement sensor, thereby obtaining the rotation angle of the active arm. From this, the function of the active arm rotation angle with the cylinder hinge point AB as the independent variable is obtained;

[0014] While the hinge point B of the active arm rotates around the hinge point C, the hinge point D rotates with the hinge point C as the center and CD as the radius, and the hinge point E rotates with the hinge point F as the center and EF as the radius. In the quadrilateral CDEF, the dimensions of the four sides are known, so the functional relationship between the change in the angle between DE and CF and the rotation angle of CD is obtained, and the functional relationship between the displacement of point E in the y-coordinate direction and the rotation angle of CD is also obtained. The functional relationship between the change in the angle between DE and CF and the change in the length of the cylinder is also obtained, and the functional relationship between the change in the y-coordinate direction of one end of the driving arm where the vibrator is installed and the change in the length of the cylinder is obtained. Finally, the height and angle of the vibrator after the cylinder is actuated are obtained.

[0015] The beneficial effects of the present invention are as follows: 1) When the oil cylinder is telescopic, the transmission of the transmission link mechanism can make the vibrating rod simultaneously lift and rotate, thereby adjusting both the height and angle of the vibrating rod. 2. The telescopic length of the oil cylinder is monitored by the oil cylinder sensor, and the height position and angle of the vibrating rod are calculated according to the functional relationship, so as to realize the function of monitoring the position and angle of the vibrating rod at any time. 3. The oil cylinder that drives the vibrating rod is installed directly above the mold frame, and the working medium is at the position of the vibrating rod in front of the mold. In this way, the oil cylinder is kept away from the working medium, thereby protecting the execution of the oil cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A three-dimensional diagram of the vibrating rod position and angle adjustment device installed on the mold;

[0017] Figure 2 This is a structural diagram of the vibrating rod position and angle adjustment device;

[0018] Figure 3 This is a state diagram of the vibrating rod position and angle adjustment device being adjusted to the lowest position;

[0019] Figure 4 Mathematical model of the vibrating rod position and angle adjustment device;

[0020] Figure 5 It is the mathematical model of the state of the cylinder retracting, the vibrating rod rising and rotating clockwise;

[0021] Figure 6 It is the mathematical model of the cylinder extending, the vibrating rod descending and rotating counterclockwise. DETAILED DESCRIPTION

[0022] like Figure 1-6As shown, the present invention includes a mold frame 1, a cylinder mounting seat 2 is fixedly provided on the upper end of the mold frame 1, a cylinder 3 with a telescopic end facing forward is installed on the cylinder mounting seat 2, the cylinder 3 has a built-in displacement sensor, the tail end of the cylinder 3 is hinged to the cylinder mounting seat 2, the telescopic end of the cylinder 3 is connected to the vibrating rod mounting frame 5 through a transmission connecting rod mechanism 4, and a vibrating rod 6 is installed on the vibrating rod mounting frame 5.

[0023] The transmission connecting rod mechanism 4 includes an active arm 4.1, a fixed arm 4.2, a driving arm 4.3, and a driven arm 4.4. The fixed arm 4.2 is vertically installed on the mold frame 1 on the front side of the cylinder 3. The telescopic end of the cylinder 3 is hinged to the upper end of the fixed arm 4.2 through the active arm 4.1. The active arm 4.1 has a triangular structure. The top angle of the active arm 4.1 is hinged to the upper end of the fixed arm 4.2 to form a hinge point C, one of the bottom angles is hinged to the telescopic end of the cylinder 3 to form a hinge point B, and the other bottom angle is hinged to the upper end of the driving arm 4.3 to form a hinge point D. The lower end of the fixed arm 4.2 is hinged to one end of the driven arm 4.4 to form a hinge point F, and the other end of the driven arm 4.4 is hinged to the middle part of the driving arm 4.3 to form a hinge point E.

[0024] The upper end of the fixed arm 4.2 is provided with a plurality of hinge holes 4.21 arranged up and down. The active arm 4.21 is hinged to different hinge holes 4.21 on the upper end of the fixed arm 4.2 through a first pin 4.7 to control the length between the hinge points CF.

[0025] A row of hinge holes 4.31 are provided in the middle of the driving arm 4.3, and the driven arm 4.4 is hinged to different hinge holes on the driving arm 4.3 through the second pin 4.6 to control the length between the hinge points DE.

[0026] A plurality of oil cylinders 3 are installed on the mold frame 1 through the oil cylinder mounting base 2, and the telescopic ends of the oil cylinder 3 are respectively connected to the transmission connecting rod mechanism 4. The vibration rod mounting frame 5 is fixedly connected between the lower ends of the driving arms 4.3 of the transmission connecting rod mechanism 4. The vibration rod mounting frame 5 includes a transversely arranged connecting frame 5.1, and the lower end of the connecting frame 5.1 is connected to a parallel connecting rod 5.2. A plurality of vibration rods 6 are fixedly installed on the connecting rod 5.2 through a clamp, and the vibration rod 6 is arranged to be tilted backward and downward relative to the horizontal plane.

[0027] When the oil cylinder 3 performs telescopic movement, the active arm 4.1 rotates around point C, and the driven arm 4.4 rotates around point F, driving the driving arm 4.3 to move up and down, and the vibrating rod moves synchronously with the driving arm 4.3.

[0028] In this embodiment, when the opposite sides of the quadrilateral CDEF in the transmission linkage mechanism 4 are equal, when the oil cylinder 3 is actuated, the driving arm 4.3 moves vertically. The driving arm 4.3 can only drive the vibrating rod 6 to adjust the height but cannot adjust the angle. If at least one set of opposite sides of the quadrilateral CDEF is unequal, then when the oil cylinder 3 is actuated, the driving arm 4.3 will not only move vertically but also rotate. The quantitative relationship between the translation and rotation can be calculated based on the geometric relationship between the sides and angles of the quadrilateral. The specific calculation process is:

[0029] Control the oil cylinder 3 to drive the hinge point B of the active arm 4.1 to rotate around the hinge point C;

[0030] With hinge point C as the coordinate origin and the trajectory equation of hinge point B listed, the rotation angle of BC is obtained based on the known relative coordinate positions of hinge points A and C and the length data between AB after the cylinder 3 is actuated, obtained by the displacement sensor. This gives the rotation angle of the active arm 4.1, and thus a function of the rotation angle of the active arm 4.1 with hinge point AB of the cylinder 3 as the independent variable.

[0031] While the hinge point B of the active arm 4.1 rotates around the hinge point C, the hinge point D rotates with the hinge point C as the center and CD as the radius, and the hinge point E rotates with the hinge point F as the center and EF as the radius. In the quadrilateral CDEF, the dimensions of the four sides are known, so the functional relationship between the change in the angle between DE and CF and the rotation angle of CD is obtained, and the functional relationship between the displacement of point E in the y-coordinate direction and the rotation angle of CD is also obtained; thereby, the functional relationship between the change in the angle between DE and CF and the change in the length of the cylinder 3, as well as the functional relationship between the change in the y-coordinate direction at one end of the driving arm 4.3 where the vibration rod 6 is installed and the change in the length of the cylinder 3 are obtained, and finally the height and angle of the vibration rod 6 after the cylinder 3 is actuated are obtained.

Claims

1. A vibrating rod position and angle adjustment device, comprising a mold frame, characterized in that: A cylinder mounting base is fixedly provided at the upper end of the mold frame, on which a cylinder with its telescopic end facing forward is mounted. The cylinder has a built-in displacement sensor. The tail end of the cylinder is hinged to the cylinder mounting base to form a hinge point A. A vibrating rod mounting bracket is mounted on the telescopic end of the cylinder through a transmission connecting rod mechanism, and a vibrating rod is mounted on the vibrating rod mounting bracket. The transmission connecting rod mechanism includes an active arm, a fixed arm, a driving arm, and a driven arm. The fixed arm is vertically installed on the mold frame on the front side of the oil cylinder. The telescopic end of the oil cylinder is hinged to the upper end of the fixed arm through the active arm. One end of the active arm is hinged to the telescopic end of the oil cylinder to form a hinge point B, the middle part is hinged to the upper end of the fixed arm to form a hinge point C, and the other end is hinged to the upper end of the driving arm to form a hinge point D. The lower end of the fixed arm is hinged to one end of the driven arm to form a hinge point F, and the other end of the driven arm is hinged to the middle part of the driving arm to form a hinge point E. The lower end of the driving arm is fixed to the vibrating rod through the vibrating rod mounting frame; The quadrilateral formed between the hinge points CDEF has at least one set of unequal opposite sides; when the cylinder is telescoping, the vibrating rod can be simultaneously lifted and rotated through the transmission link mechanism, thereby adjusting both the height and angle of the vibrating rod.

2. A vibrating rod position and angle adjustment device according to claim 1, characterized in that: The active arm is triangular in structure, the top corner of the active arm is hinged to the upper end of the fixed arm, one bottom corner of the active arm is hinged to the telescopic end of the oil cylinder, and the other bottom corner is hinged to the upper end of the driving arm.

3. The vibrating rod position and angle adjustment device according to claim 1, characterized in that: The upper end of the fixed arm is provided with a plurality of hinge holes arranged up and down, and the active arm is hinged to different hinge holes on the upper end of the fixed arm through a first pin shaft to control the length between the hinge points CF.

4. The vibrating rod position and angle adjustment device according to claim 1, characterized in that: A row of hinge holes is provided in the middle of the driving arm, and the driven arm is hinged to different hinge holes on the vibration rod mounting frame through the second pin shaft to control the length between the hinge points DE.

5. The vibrating rod position and angle adjustment device according to claim 1, characterized in that: The mold frame is respectively equipped with multiple cylinders through cylinder mounting seats, and the telescopic ends of the cylinders are respectively connected to the transmission connecting rod mechanism. The vibration rod mounting frame is fixedly connected between the driving arms of the transmission connecting rod mechanism. The vibration rod mounting frame includes a transversely arranged connecting frame, and the lower end of the connecting frame is connected to a parallel connecting rod, and multiple vibration rods are fixedly installed on the connecting rod through a clamp.

6. The vibrating rod position and angle adjustment device according to claim 1, characterized in that: The vibrating rod is arranged to be tilted backward and downward relative to a horizontal plane.

7. The method for adjusting the position and angle of a vibrating rod according to claim 1, wherein: Control the action of the oil cylinder to drive the hinge point B of the active arm to rotate with the hinge point C as the center; With hinge point C as the coordinate origin and the trajectory equation of hinge point B listed, the rotation angle of BC is obtained based on the known relative coordinate positions of hinge points A and C and the length data between AB after the cylinder is actuated obtained by the displacement sensor, thereby obtaining the rotation angle of the active arm. From this, the function of the active arm rotation angle with the cylinder hinge point AB as the independent variable is obtained; While the hinge point B of the active arm rotates around the hinge point C, the hinge point D rotates with the hinge point C as the center and CD as the radius, and the hinge point E rotates with the hinge point F as the center and EF as the radius. In the quadrilateral CDEF, the dimensions of the four sides are known, so the functional relationship between the change in the angle between DE and CF and the rotation angle of CD is obtained, and the functional relationship between the displacement of point E in the y-coordinate direction and the rotation angle of CD is also obtained; thus, the functional relationship between the change in the angle between DE and CF and the change in the length of the cylinder is obtained, as well as the functional relationship between the change in the y-coordinate direction of one end of the driving arm where the vibrator is installed and the change in the length of the cylinder is obtained, and finally the height and angle of the vibrator after the cylinder is actuated are obtained.

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