Adjustment method of high-efficiency repair device for cracks in highway engineering

Abstract

The invention discloses an adjustment method for a high-efficiency repair device for cracks in highway engineering. The device comprises a pipe body, a nozzle connected to one end of the pipe body and a delivery hose connected to the other end of the pipe body. A handle is fixedly connected to one side of the upper end of the pipe body close to the delivery hose, and a pair of side seats 1 are fixedly connected to one side of the lower end of the pipe body close to the delivery hose. A movable shaft is rotatably connected between the side seats 1. A telescopic rod is fixed to the surface of the movable shaft. A rotating shaft is fixed to the end of the telescopic rod. Side seats 2 are rotatably connected to the front and rear ends of the rotating shaft. The high-efficiency repair device for cracks in highway engineering is provided with a pressing roller at the lower end of the pipe body, so that the staff only needs to hold the handle with one hand to lift one end of the pipe body, and then push the pipe body so that the pipe body moves through the pressing roller. At the same time, after grouting to repair cracks in the road surface, the pressing roller can also flatten the slurry protruding from the surface of the cracks in the road surface, so that the efficiency of repairing cracks can be improved and it is more convenient for the staff to repair cracks in the road surface.

Description

Technical Field

[0001] The invention relates to the technical field of crack repair, and in particular to an adjustment method for a high-efficiency crack repair device for highway engineering. Background Art

[0002] Highway cracks refer to cracks that appear on the road surface, which not only affects the appearance of the road, but also poses a hidden danger to driving safety. Therefore, the road surface cracks need to be repaired. The efficient repair methods for highway engineering cracks mainly include surface repair method, groove filling method and grouting method.

[0003] Today's highway engineering crack repair devices require workers to hold the pipe with both hands when pouring slurry into the cracks. This is not only laborious but also inefficient, causing inconvenience to users. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide an adjustment method for a high-efficiency repair device for cracks in highway engineering to solve the problems raised in the above-mentioned background technology.

[0005] The invention discloses an efficient repair device for cracks in highway engineering, comprising a pipe body, a nozzle connected to one end of the pipe body and a conveying hose connected to the other end of the pipe body, wherein a handle is fixedly connected to the side of the upper end of the pipe body close to the conveying hose, and a pair of side seats 1 are fixedly connected to the side of the lower end of the pipe body close to the conveying hose, a movable shaft is rotatably connected between the side seats 1, a telescopic rod is fixed to the surface of the movable shaft, a rotating shaft is fixed to the end of the telescopic rod, a side seat 2 is rotatably connected to the front and rear ends of the rotating shaft, a roller seat is fixed between the lower parts of the side seats 2, a pressure roller is rotatably connected inside the roller seat, a worm gear mechanism is installed on the side of one of the side seats 1 and one of the side seats 2, and two groups of the worm gear mechanisms are respectively connected to the movable shaft and the rotating shaft.

[0006] Preferably, the telescopic rod includes a sliding rod, a hollow rod and a knob, the sliding rod head end is fixed to the movable shaft, the sliding rod tail end extends into the hollow rod head end, the hollow rod tail end is fixed to the rotating shaft, the knob is threadedly connected to the surface of the hollow rod, and the knob and the sliding rod are movably interpenetrating.

[0007] Preferably, screw holes are formed on both upper and lower sides of the hollow rod, the screw button is threadedly connected between the screw holes, a plurality of positioning holes are formed on the surface of the sliding rod, and the screw button is plugged into one of the positioning holes.

[0008] Preferably, the worm gear mechanism comprises a worm gear box, a rotating shaft, a worm wheel, a worm, and a knob; the worm gear box on the first side seat is fixed to the first side seat, and the worm gear box on the second side seat is fixed to the second side seat.

[0009] Preferably, the rotating shaft is rotatably connected inside the worm gear box, the end of the rotating shaft on the side seat one is fixed to the movable shaft, and the end of the rotating shaft on the side seat two is fixed to the rotating shaft.

[0010] Preferably, the worm wheel is fixed outside the rotating shaft, the worm is located on one side of the worm wheel and is rotatably connected inside the worm gear box, the worm is transmission-connected to the worm wheel, and both ends of the worm pass through the worm gear box and are fixed to the knob.

[0011] The adjustment method of the high-efficiency crack repair device for highway engineering includes determining the optimal position relationship between the pipe body and the pressure roller according to different crack widths and depths;

[0012] According to different crack widths and depths, the optimal position relationship between the pipe body and the roller is determined. Specifically: a two-dimensional diffusion model of slurry flow in cracks is established, and the horizontal filling distance l of the slurry is obtained by solving the Navier-Stokes equation. x The relationship with time t is:

[0013] ;

[0014] l x represents the filling distance of the slurry in the horizontal direction of the crack within time t; Q represents the pipe flow rate; t represents the time variable; ω represents the crack width; d represents the crack depth;

[0015] Then determine the radius R of the roller, the pressure P, and the slurry viscosity μ, and the flattening effect index S is expressed as: ;

[0016] In the formula, S is the flattening effect index, and the larger its value is, the better the flattening effect is; K1 and K2 are weight coefficients, K1 is the weight of the pressure of the roller, radius, slurry properties and crack size on the flattening effect; K2 is the weight of the position relationship between the pipe body and the roller on the flattening effect; P is the pressure of the roller on the ground; R is the radius of the roller; μ is the viscosity of the slurry; ω and d are the width and depth of the crack; x and y are the horizontal distance and vertical distance between the pipe body and the roller;

[0017] Taking the repair quality as the goal, construct the objective function: ;

[0018] In the formula, F1 is the slurry filling effect function, the filling rate is a, the uniformity is b, then F1=a×b;

[0019] F2 is the flattening effect function, which is determined by the flattening effect index S, that is, F2=S;

[0020] α and β are weight coefficients;

[0021] A genetic algorithm or an algorithm that directly traverses each value combination is used to solve the problem. The collected crack width ω, depth d, slurry viscosity μ, density ρ, pipe flow Q, roller radius R, and roller pressure P on the ground are used as input. The x and y values ​​that maximize the objective function Z are found through iterative calculation, and the positions of the pipe and roller are set according to the calculated optimal x and y values.

[0022] Beneficial effects of the present invention: The high-efficiency crack repair device for highway engineering projects is provided with a pressure roller at the lower end of the pipe body, so that the staff only needs to hold one end of the pipe body by the handle with one hand, and then push the pipe body to make the pipe body move through the pressure roller. At the same time, after grouting to repair cracks in the highway pavement, the pressure roller can also flatten the slurry protruding from the surface of the cracks in the highway pavement, which can improve the efficiency of crack repair and make it more convenient for the staff to repair cracks in the highway pavement. In addition, a function with the repair quality as the goal integrates the filling and flattening effects. Through algorithm solution, the parameters such as cracks and slurry are input to find the optimal horizontal and vertical distances between the pipe body and the pressure roller, so that the device can be adjusted according to different cracks to achieve scientific and precise repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an overall schematic diagram of the present invention;

[0024] Figure 2 It is a cross-sectional schematic diagram of the worm gear mechanism of the present invention;

[0025] Figure 3 It is a partial cross-sectional schematic diagram of the telescopic rod of the present invention.

[0026] In the figure: 1-tube body, 2-nozzle, 3-delivery hose, 4-handle, 5-side seat one, 6-worm gear mechanism, 61-worm gear box, 62-rotating shaft, 63-worm wheel, 64-worm, 65-knob, 7-sliding rod, 8-hollow rod, 9-screw knob, 10-roller seat, 11-pressure roller, 12-side seat two, 13-rotating shaft, 14-screw hole, 15-positioning hole. DETAILED DESCRIPTION

[0027] See also Figure 1-Figure 3The present invention discloses a high-efficiency crack repair device for highway engineering, comprising a pipe body 1, a nozzle 2 connected to one end of the pipe body 1, and a delivery hose 3 connected to the other end of the pipe body 1. The delivery hose 3 is connected to an external pump to deliver slurry for repairing the road surface into the pipe body 1, and then sprayed from the nozzle 2 into the cracks of the highway road surface. A handle 4 is fixedly connected to one side of the upper end of the pipe body 1 close to the delivery hose 3, and a pair of side seats 5 are fixedly connected to one side of the lower end of the pipe body 1 close to the delivery hose 3. A movable shaft is rotatably connected between the side seats 5, a telescopic rod is fixed to the surface of the movable shaft, and a rotating shaft 13 is fixed to the end of the telescopic rod. The telescopic rod comprises Sliding rod 7, hollow rod 8 and screw button 9, the head end of the sliding rod 7 is fixed to the movable shaft, the tail end of the sliding rod 7 extends into the head end of the hollow rod 8, the tail end of the hollow rod 8 is fixed to the rotating shaft 13, the screw button 9 is threadedly connected to the surface of the hollow rod 8, the screw button 9 and the sliding rod 7 are movably penetrated, by rotating the screw button 9, the screw button 9 can be moved in conjunction with the thread of the hollow rod 8, so that the screw button 9 can be screwed out from the inside of the sliding rod 7, the positioning of the sliding rod 7 can be released, and then the sliding rod 7 can be slid, so that the sliding rod 7 slides into or out of the hollow rod 8, achieving the effect of telescoping, thereby facilitating the adjustment of the spacing between the rotating shaft 13 and the movable shaft;

[0028] The hollow rod 8 has screw holes 14 on both sides, the screw button 9 is threadedly connected between the screw holes 14, and the surface of the slide bar 7 has a plurality of positioning holes 15, the screw button 9 is plugged into one of the positioning holes 15, and when the screw button 9 is rotated, the screw button 9 can be threadedly matched with the screw hole 14, so that the screw button 9 can be moved out of the positioning hole 15 to release the limit of the slide bar 7 or moved into the positioning hole 15 to limit the slide bar 7;

[0029] The front and rear ends of the rotating shaft 13 are rotatably connected with the side seat 2 12, a roller seat 10 is fixed between the lower parts of the side seat 2 12, and a pressure roller 11 is rotatably connected inside the roller seat 10. A worm gear mechanism 6 is installed on the side of one of the side seats 1 5 and one of the side seats 2 12. Two groups of the worm gear mechanisms 6 are respectively connected to the movable shaft and the rotating shaft 13. The worm gear mechanism 6 includes a worm gear box 61, a rotating shaft 62, a worm wheel 63, a worm 64, and a knob 65. The worm gear box 61 on the side seat 1 5 is fixed to the side seat 1 5, and the worm gear box 61 on the side seat 2 12 is fixed to the side seat 2 12. The rotating shaft 62 is rotatably connected to the inside of the worm gear box 61, the end of the rotating shaft 62 on the side seat 1 5 is fixed to the movable shaft, and the end of the rotating shaft 62 on the side seat 2 12 is fixed to the rotating shaft 13, and the worm wheel 63 is fixed to the outside of the rotating shaft 62 The worm 64 is located at one side of the worm wheel 63 and is rotatably connected to the inside of the worm gear box 61. The worm 64 is transmission-connected to the worm wheel 63. Both ends of the worm 64 pass through the worm gear box 61 and are fixed to the knob 65. By rotating the knob 65 on the side seat 1 5, the knob 65 drives the worm 64 to rotate, and the worm 64 and the worm wheel 63 drive the rotating shaft 62 to rotate, and the rotating shaft 62 will drive the movable shaft to rotate, so that the movable shaft will drive the telescopic rod to rotate and tilt, and by rotating the knob 65 on the side seat 2 12, the knob 65 drives the worm 64 to rotate, and the worm 64 and the worm wheel 63 drive the rotating shaft 62 to rotate, and the rotating shaft 62 will drive the rotating shaft 13 to rotate, but the rotating shaft 13 and the telescopic rod are fixed, so the side seat 2 12 makes relative motion and rotation, so that the side seat 2 12 will drive the roller seat 10 to rotate and adjust the position, so as to adjust the pressure roller 11 to a suitable contact with the ground and roll.

[0030] Before repairing the road surface, the screw button 9 is first turned to make the screw button 9 and the screw hole 14 threadedly cooperate, so that the screw button 9 can move out of the positioning hole 15 to release the limit of the slide bar 7, and then the slide bar 7 can be slid to make the slide bar 7 slide into or out of the hollow rod 8 to adjust the pressure roller 11 to contact and roll with the ground at a suitable position, and then the screw button 9 is turned to make the screw button 9 move into the positioning hole 15 to limit the slide bar 7, and by turning the knob 65 on the side seat 1 5, the knob 65 drives the worm 64 to rotate, and the worm 64 and the worm wheel 63 drive the rotating shaft 62 to rotate, and the rotating shaft 62 will drive the movable shaft to rotate, so that the movable shaft will drive the telescopic rod to rotate and tilt, and the height of holding the handle 4 can be adjusted according to the height of the user, and by turning the knob 6 on the side seat 2 12 5. The knob 65 drives the worm 64 to rotate, and the worm 64 and the worm wheel 63 drive the rotating shaft 62 to rotate, and the rotating shaft 62 will drive the rotating shaft 13 to rotate, but the rotating shaft 13 and the telescopic rod are fixed, so the side seat 2 12 rotates relative to each other, so that the side seat 2 12 will drive the roller seat 10 to rotate and adjust the position, so as to adjust the pressure roller 11 to a suitable contact with the ground and roll, so that the staff only needs to hold the handle 4 with one hand to lift one end of the tube body 1, and then push the tube body 1, so that the tube body 1 moves through the pressure roller 11, and at the same time, after grouting to repair the cracks in the road surface, the pressure roller 11 can also flatten the slurry protruding from the surface of the cracks in the road surface, which can improve the efficiency of repairing the cracks and make it more convenient for the staff to repair the cracks in the road surface.

[0031] The vertical distance and horizontal distance between the pipe body and the roller affect the consistency and accuracy of the grouting and flattening operations.

[0032] During implementation, the present application also discloses an adjustment method for an efficient highway engineering crack repair device, including determining the optimal position relationship between the pipe body and the pressure roller according to different crack widths and depths, and further: establishing a mathematical model to determine the optimal position relationship between the pipe body and the pressure roller according to different crack widths and depths, to ensure that the pressure roller can accurately flatten the slurry after grouting, thereby improving the repair quality.

[0033] Specifically: In the crack repair of highway engineering, in order to determine the optimal position relationship between the pipe body and the pressure roller under different crack widths and depths, the following parameters must be clarified first:

[0034] Crack characteristic parameters: Crack width is represented by ω, which describes the size of the crack opening in the horizontal direction; crack depth is represented by d, which reflects the length of the crack extending downward from the pavement surface;

[0035] Position relationship parameters: The horizontal distance between the tube body and the roller is recorded as x, and the vertical distance is recorded as y. Specifically, x is the horizontal distance between the geometric center of the tube body and the geometric center of the roller, and y is the vertical distance between the geometric center of the tube body and the geometric center of the roller. The vector sum distance of x and y represents the distance between the geometric center of the tube body and the geometric center of the roller. These two parameters are the key variables that we need to optimize and solve through mathematical models.

[0036] Physical parameters of slurry: The viscosity of slurry is measured by μ, which reflects the internal resistance of slurry when it flows; the density of slurry is represented by ρ; the flow rate of slurry output from the pipe body is represented by Q, that is, the volume of slurry flowing out of the pipe body per unit time;

[0037] Roller-related parameters: The radius of the roller is R, and the pressure exerted by the roller on the ground is P;

[0038] Time parameter: Time is represented by t, which is used to describe the duration of slurry flow and repair process.

[0039] According to the principles of fluid mechanics, a two-dimensional diffusion model of slurry flowing in fractures is established. By solving the Navier-Stokes equation, the filling distance l of the slurry in the horizontal direction is obtained. x The relationship with time t is: ;

[0040] Where: l x It represents the filling distance of the slurry in the horizontal direction of the crack within the time t, which intuitively reflects the degree of lateral diffusion of the slurry in the crack; Q represents the pipe flow rate. The larger the flow rate, the more slurry flows into the crack per unit time, and the longer the horizontal distance filled by the slurry in the same time; t represents the time variable. As time increases, the slurry continues to flow into the crack and the filling distance will increase accordingly; ω represents the crack width. The wider the crack, the larger the space that can be accommodated when the slurry diffuses in the horizontal direction. However, under the same flow rate, the time required to fill the same distance will be longer, that is, the filling distance will be relatively shorter; d represents the crack depth. The greater the depth, the more the slurry will penetrate downward and the horizontal diffusion will be affected, resulting in a smaller horizontal filling distance under the same conditions.

[0041] "The horizontal filling distance of the slurry is l x The role of:

[0042] Evaluate the slurry filling progress: By calculating l at different times x , we can understand the diffusion of slurry in the horizontal direction of the crack in real time and judge whether the slurry has filled the expected position at a certain time point. For example, if the length of the crack is known, by comparing l x By comparing the length of the crack and the slurry filling, we can know whether the slurry fills the entire horizontal direction of the crack. The uniformity and filling rate of the slurry filling can also be determined by comparing thex and crack length determined.

[0043] Determine the timing of the roller action: It provides a basis for determining the best time for the roller to start working. Only when the slurry is filled to a suitable distance in the horizontal direction, the roller can perform the flattening operation to achieve a better effect. If the roller is involved too early, the slurry may not fully fill the crack, resulting in incomplete repair; if the roller is involved too late, the slurry may have begun to solidify, increasing the difficulty of flattening and affecting the quality of the repair.

[0044] Optimize the horizontal distance between the tube body and the pressure roller: l x is an important reference factor. The horizontal distance x between the tube and the roller needs to match the filling distance of the slurry to ensure that the roller can flatten the filled slurry in time. For example, if the horizontal filling distance of the slurry at a certain time point is calculated to be l x , then the horizontal distance x between the tube body and the pressure roller should be set slightly larger than l x , so that the slurry has enough time to fill to the appropriate state before being flattened.

[0045] Then the radius R, pressure P, rotation speed (set as a fixed constant v) of the roller and the physical properties of the slurry (viscosity μ, density ρ) are determined, and the flattening effect index S is expressed as: ;

[0046] In the formula, S is the flattening effect index, and the larger its value is, the better the flattening effect is; K1 and K2 are weight coefficients, such as 0.3 and 0.7 respectively, K1 is the weight of the pressure of the roller, radius, slurry properties and crack size on the flattening effect; K2 is the weight of the position relationship between the pipe body and the roller on the flattening effect; P is the pressure of the roller on the ground, the greater the pressure, the stronger the squeezing effect on the slurry, and the more conducive it is to flatten the slurry; R is the radius of the roller, the larger the radius, the larger the contact area between the roller and the slurry, and at the same pressure The slurry can be flattened more effectively; in implementation, the radius R of the pressure roller is a constant value, and the pressure P can be measured by installing a pressure sensor on the pressure roller; μ is the viscosity of the slurry. The greater the viscosity, the more difficult it is for the slurry to flow and be flattened, which will reduce the flattening effect; ω and d are the width and depth of the crack. The larger the crack size, the greater the flattening difficulty, and the flattening effect will be affected to a certain extent; x and y are the horizontal distance and vertical distance between the pipe body and the pressure roller. The larger the horizontal distance and the smaller the vertical distance, the worse the effect of the pressure roller on the slurry may be.

[0047] Taking the repair quality as the goal, the filling effect and flattening effect of the slurry are comprehensively considered to construct the objective function: ;

[0048] In the formula, F1 is the slurry filling effect function, which is determined according to the uniformity and filling rate of the slurry filling. The filling rate is a, and the uniformity index is b (the value range is 0-1, 1 means completely uniform), then F1=a×b. The filling rate a and the uniformity index b are calculated by the filling distance l of the slurry in the horizontal direction. x The relationship with time t can be determined;

[0049] F2 is the flattening effect function, which is determined by the flattening effect index S, that is, F2=S;

[0050] α and β are weight coefficients, for example, both are 0.5, which can be adjusted according to the actual situation. If you pay more attention to the filling effect, increase the value of α; if you pay more attention to the flattening effect, increase the value of β accordingly.

[0051] Genetic algorithms or directly traverse each value combination algorithm to solve the problem. The collected crack width ω, depth d, slurry viscosity μ, density ρ, pipe flow Q, roller radius R, and roller pressure P on the ground are used as inputs, and the x and y values ​​that maximize the objective function Z are found through iterative calculations.

[0052] Use the calculated optimal x and y values ​​to set the position of the pipe body and the roller, carry out grouting and flattening tests, and record the filling rate, surface flatness parameters and repair effect.

[0053] Through the above operations, the optimal position relationship between the pipe body and the pressure roller can be determined according to different crack conditions, thereby improving the quality and efficiency of crack repair in highway projects.

[0054] This application uses the repair quality as the target function, integrating the filling and flattening effects. Through algorithm solution, inputting parameters such as cracks and slurry, the optimal horizontal and vertical distances between the pipe body and the roller are found, so that the device can be adjusted according to different cracks to achieve scientific and precise repair.

Claims

1. An adjustment method for a high-efficiency repair device for cracks in highway engineering, comprising a high-efficiency repair device for cracks in highway engineering, the high-efficiency repair device for cracks in highway engineering comprising a pipe body (1), a nozzle (2) connected to one end of the pipe body (1), and a delivery hose (3) connected to the other end of the pipe body (1), a handle (4) being fixedly connected to one side of the upper end of the pipe body (1) close to the delivery hose (3), characterized in that: A pair of side seats (5) are fixedly connected to one side of the lower end of the tube body (1) near the conveying hose (3); a movable shaft is rotatably connected between the side seats (5); a telescopic rod is fixed to the surface of the movable shaft; a rotating shaft (13) is fixed to the end of the telescopic rod; the front and rear ends of the rotating shaft (13) are rotatably connected to side seat 2 (12); a roller seat (10) is fixed between the lower parts of the side seat 2 (12); a pressure roller (11) is rotatably connected inside the roller seat (10); a worm gear mechanism (6) is installed on the side of one of the side seats (5) and one of the side seats (12); and the two groups of worm gear mechanisms (6) are respectively connected to the movable shaft and the rotating shaft (13); According to different crack widths and depths, the optimal position relationship between the pipe body and the roller is determined. Specifically, a two-dimensional diffusion model of slurry flow in the crack is established, and the horizontal filling distance l of the slurry is obtained by solving the Navier-Stokes equation. x The relationship with time t is: ; l x represents the filling distance of the slurry in the horizontal direction of the crack within time t; Q represents the pipe flow rate; t represents the time variable; ω represents the crack width; d represents the crack depth; Then determine the radius R of the roller, the pressure P, and the slurry viscosity μ, and the flattening effect index S is expressed as: ; In the formula, S is the flattening effect index, and the larger its value is, the better the flattening effect is; K1 and K2 are weight coefficients, K1 is the weight of the pressure of the roller, radius, slurry properties and crack size on the flattening effect; K2 is the weight of the position relationship between the pipe body and the roller on the flattening effect; P is the pressure of the roller on the ground; R is the radius of the roller; μ is the viscosity of the slurry; ω and d are the width and depth of the crack; x is the horizontal distance between the pipe body and the roller, and y is the vertical distance between the pipe body and the roller; Taking the repair quality as the goal, construct the objective function: ; In the formula, F1 is the slurry filling effect function, the filling rate is a, the uniformity is b, then F1=a×b; F2 is the flattening effect function, which is determined by the flattening effect index S, that is, F2=S; α and β are weight coefficients; A genetic algorithm or an algorithm that directly traverses each value combination is used to solve the problem. The collected crack width ω, depth d, slurry viscosity μ, density ρ, pipe flow Q, roller radius R, and roller pressure P on the ground are used as input. The horizontal distance between the pipe body and the roller and the vertical distance between the pipe body and the roller that maximize the objective function Z are found through iterative calculation. The positions of the pipe body and the roller are set according to the calculated optimal horizontal distance between the pipe body and the roller and the vertical distance between the pipe body and the roller.

2. The adjustment method of the high-efficiency repair device for highway engineering cracks according to claim 1 is characterized by: The telescopic rod comprises a sliding rod (7), a hollow rod (8) and a screw button (9); the head end of the sliding rod (7) is fixed to the movable shaft, the tail end of the sliding rod (7) extends into the head end of the hollow rod (8), the tail end of the hollow rod (8) is fixed to the rotating shaft (13), the screw button (9) is threadedly connected to the surface of the hollow rod (8), and the screw button (9) and the sliding rod (7) are movably interpenetrating.

3. The adjustment method of the high-efficiency repair device for highway engineering cracks according to claim 2 is characterized by: The hollow rod (8) has screw holes (14) on both the upper and lower sides, the screw button (9) is threadedly connected between the screw holes (14), and the surface of the sliding rod (7) has a plurality of positioning holes (15), and the screw button (9) is plugged into one of the positioning holes (15).

4. The adjustment method of the high-efficiency repair device for highway engineering cracks according to claim 1 is characterized by: The worm gear mechanism (6) comprises a worm gear box (61), a rotating shaft (62), a worm wheel (63), a worm (64), and a knob (65); the worm gear box (61) on the first side seat (5) is fixed to the first side seat (5), and the worm gear box (61) on the second side seat (12) is fixed to the second side seat (12).

5. The adjustment method of the high-efficiency repair device for highway engineering cracks according to claim 4 is characterized by: The rotating shaft (62) is rotatably connected to the inside of the worm gear box (61); the end of the rotating shaft (62) on the side seat one (5) is fixed to the movable shaft; and the end of the rotating shaft (62) on the side seat two (12) is fixed to the rotating shaft (13).

6. The adjustment method of the high-efficiency repair device for highway engineering cracks according to claim 5 is characterized by: The worm wheel (63) is fixed to the outside of the rotating shaft (62); the worm (64) is located on one side of the worm wheel (63) and is rotatably connected to the inside of the worm wheel box (61); the worm (64) is transmission-connected to the worm wheel (63); both ends of the worm (64) pass through the worm wheel box (61) and are fixed to the knob (65).

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