Electric adjusting sliding shoe leveling device

Abstract

The utility model relates to an electric adjusting slipper leveling device, its structure comprises a main beam rod and an adjusting connection part arranged on the main beam rod, the adjusting connection part comprises an adjusting sleeve, a screw rod, a worm and gear mechanism and a motor, the main beam rod horizontally passes through the adjusting sleeve, a plurality of support wheels are arranged on the main beam rod along the length direction, and the support wheels are connected with the screw rod. The height of the adjusting sleeve is larger than the thickness of the main beam rod, the worm and gear mechanism is arranged at the top of the adjusting sleeve, the lead screw is vertically arranged in the middle of the main beam rod, the lead screw upwards penetrates through the adjusting sleeve and the worm and gear mechanism, the lead screw is in threaded connection with a center hole of the worm gear, and the motor is connected with the worm. According to the leveling device, the height of the leveling device is adjusted through the motor, the height of the adjusting sleeve is directly controlled through the lead screw, the pressure of the spring does not need to be adjusted according to experience, the adjusting precision is high, and therefore the paving precision can be guaranteed.

Description

Technical Field

[0001] The utility model relates to a leveling device for road hot recycling maintenance, in particular to an electric adjustable sliding shoe leveling device. Background Art

[0002] After a road has been used for a long time, it will be damaged, and the damaged road surface needs to be repaired in time. The in-situ hot recycling technology is a rapid road surface repair technology, which heats and softens the asphalt road surface, mechanically loosens the old road materials on the road surface, adds a certain amount of asphalt, regenerant, new mixture or aggregate according to needs, then stirs, and re-paves and compacts the formed asphalt mixture on site, so as to eliminate road surface diseases and restore road surface performance. This technology can recycle the original old asphalt mixture on the road surface, minimize environmental pollution while saving costs, and can be constructed without affecting traffic, reducing the pressure on traffic caused by construction to the lowest level.

[0003] In the paving and leveling process of the in-situ hot recycling process, the height of the bottom surface of the screed board is used to control the leveling height, and the stability of the screed board height determines the paving flatness. The existing leveling device such as a spring type sliding shoe leveling device in CN207685639U needs to manually adjust the pressure of the spring to determine the paving and leveling thickness. During the paving and leveling process, when there are bumps or depressions on the road surface passed by the roller, the spring type sliding shoe will correct this through the deformation of the spring, so as to ensure the stability of the height of the bottom plane of the screed board, and then ensure the paving flatness. Since manual adjustment is required in the prior art and the spring pressure is adjusted according to the experience of workers, the adjustment accuracy is low, resulting in poor flatness accuracy of the road surface. Content of the Utility Model

[0004] The purpose of the utility model is to provide an electric adjustable sliding shoe leveling device to solve the problem of poor manual adjustment accuracy of the existing sliding shoe leveling device.

[0005] The utility model is realized as follows: an electric adjustable sliding shoe leveling device includes a main beam rod and an adjustment connection part arranged on the main beam rod. The adjustment connection part includes an adjustment sleeve, a lead screw, a worm and worm gear mechanism and a motor. The main beam rod horizontally passes through the adjustment sleeve. A plurality of support wheels are arranged on the main beam rod along the length direction. The height of the adjustment sleeve is greater than the thickness of the main beam rod. The worm and worm gear mechanism is arranged on the top of the adjustment sleeve. The lead screw is vertically arranged in the middle of the main beam rod. The lead screw upward passes through the adjustment sleeve and the worm and worm gear mechanism. The lead screw is in threaded connection with the central hole of the worm gear. The motor is connected with the worm.

[0006] As a further improvement of the electric adjustable skid shoe leveling device of the present utility model, the cross-section of the main beam rod is rectangular, the adjusting sleeve is rectangular, and the distance between the side plates on the front and rear sides of the adjusting sleeve is slightly larger than the width of the main beam rod.

[0007] As a further improvement of the electric adjustable skid shoe leveling device of the present utility model, a sliding limit structure is provided on the main beam rod for restricting that only relative up and down movement can occur between the adjusting sleeve and the main beam rod.

[0008] As a further improvement of the electric adjustable skid shoe leveling device of the present utility model, two limit switches arranged side by side up and down are provided on the main beam rod, and two displacement limit structures are provided on the adjusting sleeve for restricting the extreme positions of the relative up and down movement between the adjusting sleeve and the main beam rod.

[0009] As a further improvement of the electric adjustable skid shoe leveling device of the present utility model, the support wheel is a universal wheel.

[0010] As a further improvement of the electric adjustable skid shoe leveling device of the present utility model, the motor is connected to the housing of the worm and worm gear mechanism through a connecting frame, and the rotating shaft of the motor is connected to the worm of the worm and worm gear mechanism through a coupling.

[0011] As a further improvement of the electric adjustable skid shoe leveling device of the present utility model, the present utility model further includes a distance sensor and a controller. The sensor is arranged on the vehicle body for detecting the undulation amount of the road surface passed by the support wheel, and the controller is used to control the rotation of the motor to control the height of the adjusting connection part. The controller is signal-connected to the distance sensor.

[0012] As a further improvement of the electric adjustable skid shoe leveling device of the present utility model, a connecting rod is provided at the lower part of the adjusting sleeve, and the connecting rod extends towards the inner side of the main beam rod.

[0013] The present utility model is respectively installed on both sides of the scraping plate of the road surface hot recycling vehicle. The present utility model is connected to the scraping plate through an adjusting connection part. The rotation of the motor drives the lead screw to move up and down through the worm and worm gear mechanism, thereby controlling the relative up and down movement between the adjusting sleeve and the main beam rod. The present utility model adjusts the height of the leveling device through the motor, and the height of the adjusting sleeve of the present utility model is directly controlled by the lead screw, without the need to adjust the pressure of the spring according to experience, and the adjustment accuracy is high, so as to ensure the paving accuracy.

[0014] When the road surface passed by the support wheel has undulations, the height of the adjusting sleeve can be adjusted through the motor, so as to ensure the smoothness of the height of the scraping plate, and further ensure the flatness of paving. Description of the Drawings

[0015] Figure 1 is the structural diagram of the present utility model.

[0016] Figure 2 is Figure 1 the right view of

[0017] In the figure: 1, main beam rod; 2, adjusting sleeve; 3, worm and worm gear mechanism; 4, lead screw; 5, motor; 6, connecting frame; 7, supporting wheel; 8, limit switch; 9, displacement limiting structure; 10, sliding limiting structure; 11, connecting rod. Specific embodiments

[0018] The following will describe the specific embodiments of the present invention with reference to the accompanying drawings.

[0019] Embodiment 1

[0020] As Figure 1 , Figure 2 shown, the present invention is an electric adjustable skid leveler, which includes a main beam rod 1 and an adjusting connection part arranged on the main beam rod 1. The adjusting connection part includes an adjusting sleeve 2, a lead screw 4, a worm and worm gear mechanism 3 and a motor 5.

[0021] The main beam rod 1 horizontally passes through the adjusting sleeve 2, and a plurality of supporting wheels 7 are arranged on the main beam rod 1 along the length direction. The supporting wheels 7 are installed at the bottom of the main beam rod 1, and the main beam rod 1 is supported by multiple supporting wheels 7 in contact with the ground. Among them, the height of the adjusting sleeve 2 is greater than the thickness of the main beam rod 1, so that the main beam rod 1 can move up and down a certain distance within the adjusting sleeve 2, thereby being able to adjust the relative position between the main beam rod 1 and the adjusting sleeve 2 within a certain range.

[0022] The worm and worm gear mechanism 3 is arranged at the top of the adjusting sleeve 2. The worm and worm gear mechanism 3 includes a housing fixed at the top of the adjusting sleeve 2. The worm and the worm are installed inside the housing. The lead screw 4 is vertically arranged in the middle of the main beam rod 1. The lead screw 4 passes upward through the top plate of the adjusting sleeve 2 and the housing of the worm and worm gear mechanism 3. The lead screw 4 passes through the worm and is threadedly connected to the central hole of the worm. The worm is equivalent to the nut in the lead screw nut mechanism. When the worm rotates, it drives the lead screw 4 to move up and down, and the motor 5 is connected to the worm. The worm and the worm gear are cooperatively connected, and the rotation of the worm and the worm gear is driven by the motor 5.

[0023] Among them, the motor 5 can be a stepper motor 5 or a servo motor 5, and the number of rotation turns of the motor 5 can be accurately controlled, so as to control the moving distance of the lead screw 4, and thus control the displacement amount of the main beam rod 1 moving up and down within the adjusting sleeve 2. Since the adjusting sleeve 2 is connected to the scraping plate during use, the present invention can accurately adjust the scraping height of the scraping plate through the motor 5.

[0024] Furthermore, the cross-section of the main beam rod 1 is rectangular, and the adjusting sleeve 2 is of a rectangular frame structure. The distance between the side plates on the front and rear sides of the adjusting sleeve 2 is slightly larger than the width of the main beam rod 1. After the main beam rod 1 passes through the adjusting sleeve 2, both sides of the main beam rod 1 are in contact with the side plates on the front and rear sides of the adjusting sleeve 2, thereby restricting the main beam rod 1 within the adjusting sleeve 2.

[0025] To further restrict the movement of the main beam rod 1, a sliding limit structure 10 is provided on the main beam rod 1. The sliding limit structure 10 is located in the middle of the side surface of the main beam rod 1, and the two sliding limit structures 10 are located on the left and right sides of the adjusting sleeve 2, thereby restricting that only relative vertical movement can occur between the adjusting sleeve 2 and the main beam rod 1. Among them, the sliding limit structure 10 is specifically a vertical protrusion on the side surface of the main beam rod 1 or a protrusion welded on the side surface of the main beam rod 1, and the protrusion or protrusion is specifically a strip structure.

[0026] Two limit switches 8 are arranged side by side up and down on the main beam rod 1. The two limit switches 8 are located beside the adjusting sleeve 2. Two displacement limit structures 9 are arranged on the adjusting sleeve 2. When the relative displacement between the main beam rod 1 and the adjusting sleeve 2 reaches the limit position, the corresponding displacement limit structure 9 will contact and trigger the limit switch 8, thereby restricting the limit position of the relative vertical movement between the adjusting sleeve 2 and the main beam rod 1. Specifically, the displacement limit structure 9 is a protrusion or cylinder fixed at the upper and lower ends of the adjusting sleeve 2.

[0027] The motor 5 is connected to the housing of the worm and worm gear mechanism 3 through the connecting frame 6. The rotating shaft of the motor 5 extends into the connecting frame 6, and the end of the worm also extends into the connecting frame 6, and the rotating shaft of the motor 5 is coaxial with the worm. The rotating shaft of the motor 5 is connected to the worm through a coupling.

[0028] A connecting rod 11 is arranged at the lower part of the adjusting sleeve 2. The connecting rod 11 extends towards the inner side of the main beam rod 1. The connecting rod 11 is inserted into the sleeves on both sides of the scraping plate, thereby connecting the adjusting sleeve 2 with the scraping plate. Since the supporting wheels 7 on the main beam rod 1 are in contact with the ground, adjusting the relative position between the main beam rod 1 and the adjusting sleeve 2 is to adjust the height of the scraping plate relative to the ground.

[0029] Among them, the supporting wheel 7 is specifically a universal wheel, and the universal wheel facilitates turning during operation.

[0030] The utility model adjusts the height of the leveling device through the motor 5, and the utility model directly controls the height of the adjusting sleeve 2 by the lead screw 4, without the need to adjust the pressure of the spring according to experience, and the adjustment accuracy is high, thereby ensuring the paving accuracy. And the height of the scraping plate can be adjusted at any time through the motor 5, thereby ensuring the flatness of the paving surface.

[0031] Embodiment Two

[0032] On the basis of the first embodiment, this embodiment adds a distance sensor and a controller. The sensor is arranged on the vehicle body and used to detect the undulation amount of the road surface passed by the support wheel 7. The controller is used to control the rotation of the motor 5 to control the height of the adjustment connection part, and the controller is signal-connected to the distance sensor.

[0033] Among them, the distance sensor is specifically an ultrasonic ranging sensor, a laser ranging sensor, an infrared ranging sensor, etc.

[0034] Before working, first control the motor 5 to rotate through the controller, so as to adjust the scraping plate to the required height. When the road surface passed by the support wheel 7 has undulations, measure the undulation amount of the road surface through the distance sensor. The controller controls the motor 5 to rotate according to the measured undulation amount of the road surface to drive the lead screw 4 to move a corresponding displacement amount, so as to correct the height of the main beam rod 1, thereby ensuring the smoothness of the height of the scraping plate, and further ensuring the flatness of the paving, and preventing the height after paving from fluctuating with the local undulations of the road surface.

[0035] Since this embodiment can timely correct the height of the scraping plate through the motor 5 and does not require a spring for correction, it can ensure the paving accuracy and the flatness of the paving surface.

Claims

1. An electric adjustable sliding shoe leveler, comprising a main beam and an adjustable connecting portion arranged on the main beam, characterized in that: The adjustment connection part includes an adjustment sleeve, a screw, a worm gear mechanism and a motor. The main beam rod passes through the adjustment sleeve horizontally, and a plurality of support wheels are arranged on the main beam rod along the length direction. The height of the adjustment sleeve is greater than the thickness of the main beam rod. The worm gear mechanism is arranged at the top of the adjustment sleeve, and the screw rod is vertically arranged in the middle of the main beam rod. The screw rod passes through the adjustment sleeve and the worm gear mechanism upward, and the screw rod is threadedly connected to the center hole of the worm wheel, and the motor is connected to the worm gear.

2. The electric adjustable shoe leveler according to claim 1 is characterized in that: The cross section of the main beam is rectangular, the adjustment sleeve is rectangular, and the distance between the side plates on the front and rear sides of the adjustment sleeve is slightly larger than the width of the main beam.

3. The electric adjustable shoe leveler according to claim 1, characterized in that The main beam is provided with a sliding limit structure for limiting the adjustment sleeve and the main beam to only relative up and down movement.

4. The electric adjustable shoe leveler according to claim 1, characterized in that The main beam is provided with two upper and lower limit switches arranged side by side, and the adjustment sleeve is provided with upper and lower displacement limit structures for limiting the upper and lower relative movement limit positions between the adjustment sleeve and the main beam.

5. The electrically adjustable sliding shoe leveler according to claim 1, characterized in that: The supporting wheel is a universal wheel.

6. The electrically adjustable sliding shoe leveler according to claim 1, characterized in that: The motor is connected to the housing of the worm gear mechanism through a connecting frame, and the rotating shaft of the motor is connected to the worm of the worm gear mechanism through a coupling.

7. The electrically adjustable sliding shoe leveler according to claim 1, characterized in that: It also includes a distance sensor and a controller. The sensor is arranged on the vehicle body to detect the undulation of the road surface passed by the support wheel. The controller is used to control the rotation of the motor to control the height of the adjustment connection part. The controller is connected to the distance sensor signal.

8. The electrically adjustable sliding shoe leveler according to claim 1, characterized in that: A connecting rod is arranged at the lower part of the adjusting sleeve, and the connecting rod extends toward the inner side of the main beam.

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