Paving pavement segment difference adjusting device, paver and adjusting method

Abstract

The invention provides a paving pavement segment difference adjusting device. The paving pavement segment difference adjusting device comprises an ironing main body and a first telescopic main body arranged at the side end of the ironing main body, and a first ironing plate in contact with a paving pavement is arranged on the first telescopic main body; the monitoring mechanism comprises a first monitoring piece arranged on the ironing main body, a second monitoring piece arranged on the first telescopic main body, and a controller for recording an initial difference value between the first monitoring piece and the second monitoring piece; the controller is arranged on the ironing main body and connected with the first ironing plate, and the adjusting mechanism is arranged on the ironing main body and connected with the first ironing plate, when the difference value of the first monitoring part and the second monitoring part is changed, the controller can change the position of the first ironing plate through the adjusting mechanism, and the position of the second ironing plate is adjusted through the adjusting mechanism. Therefore, the height difference of the paved pavement formed by the ironing main body and the first telescopic main body is eliminated.

Description

Technical Field

[0001] The present invention relates to the technical field of paver equipment application, and in particular to a paving road surface step difference adjustment device, a paver, and an adjustment method. Background Art

[0002] A paver is a construction equipment mainly used for paving various materials on the base and surface layers of highways. The paving work is completed by the cooperation of various systems, mainly including the travel system, hydraulic system, material distribution system, etc.

[0003] The screed plate of a hydraulically retractable paver usually consists of three independent mechanical structures. During construction, the screed plates at the left and right ends can be freely retracted and retracted by hydraulic drive. During construction of a paver with this type of screed plate, the material paved under the three screed plates will have a height difference (the whole is not a horizontal plane). At this time, the operator needs to adjust the relative height difference of the three screed plates by manually or by controlling the hydraulic drive through an electric control switch to adjust the mechanical structure to eliminate the height difference of the paved material.

[0004] However, this height difference often occurs when the width of the paving road changes, the speed of the paver changes, or when paving at a turn, so the operator needs to make frequent adjustments, which brings relatively high labor intensity to the operator.

[0005] Therefore, it is desired in the art to provide a paving road surface step difference adjustment device to solve the above-mentioned technical problems. Summary of the invention

[0006] The purpose of the present invention is to propose a paving pavement step difference adjustment device, which can record the actual difference between the first monitoring component and the second monitoring component through a controller, and then compare the change of the actual difference compared with the initial difference, so as to determine whether there is a height difference between the paving pavement formed by the first ironing plate and the paving pavement formed by the second ironing plate.

[0007] According to a first aspect of the present invention, there is provided a paving road surface step adjustment device, comprising a screed body,

[0008] A first telescopic body disposed at a side end of the ironing body, wherein a first ironing plate in contact with the paving road surface is disposed on the first telescopic body;

[0009] a monitoring mechanism, the monitoring mechanism comprising a first monitoring member disposed on the ironing body, a second monitoring member disposed on the first telescopic body, and a controller for recording an initial difference between the first monitoring member and the second monitoring member, and

[0010] An adjustment mechanism is arranged on the ironing body and connected to the first ironing plate,

[0011] When the difference between the first monitoring component and the second monitoring component changes, the controller can change the position of the first ironing plate through the adjustment mechanism, thereby eliminating the height difference of the paved road surface formed by the ironing body and the first telescopic body.

[0012] In one embodiment, the first monitoring component and the second monitoring component are both configured as ultrasonic sensors.

[0013] In one embodiment, the first monitoring component and the second monitoring component are both configured as a U-shaped structure, and include a main body configured in a plate-like form, and at least five first ranging probes arranged on the lower end surface of the main body.

[0014] In one embodiment, the first monitoring component and the second monitoring component both include a first mounting plate and a second mounting plate disposed on both sides of the main body, wherein a second ranging probe for measuring ultrasonic flight speed is disposed on the first mounting plate.

[0015] In one embodiment, the paving road surface step adjustment device includes a support mechanism for fixing the first monitoring member and the second monitoring member, and the support mechanism includes:

[0016] The support rods arranged along the horizontal direction,

[0017] two fixing rods arranged on the support rod at intervals in the longitudinal direction, and

[0018] An adjustment frame is respectively arranged on the ironing body and the first telescopic body and adapted to the fixing rod, wherein the first monitoring component and the second monitoring component are installed on the supporting rod through a fixing seat.

[0019] In one embodiment, a second screed plate for contacting the paving road surface is provided on the screed body.

[0020] In one embodiment, when the first monitoring component and the second monitoring component are at an initial difference, the second ironing plate is at the same height as the first ironing plate.

[0021] In one embodiment, the adjustment mechanism includes an adjustment screw connected to the first ironing plate, a drive motor spaced apart from the adjustment screw, and a conveyor belt sleeved outside the adjustment screw and the drive motor.

[0022] According to a second aspect of the present invention, a paving machine is provided, comprising the paving road surface step difference adjustment device as described above, and a second telescopic body arranged on a side of the screed body away from the first telescopic body.

[0023] According to a third aspect of the present invention, there is provided a method of adjustment, which utilizes the paving machine according to claim 9, comprising the following steps:

[0024] S1, recording the actual difference between the first monitoring component and the second monitoring component by the controller and comparing it with the initial difference, thereby determining the height difference between the paved road surface formed by the ironing body and the first telescopic body, and sending an indication signal to the adjustment mechanism;

[0025] S2. Adjusting the height of the first ironing plate by the driving motor and the adjusting screw until the height difference between the first ironing plate and the second ironing plate is eliminated.

[0026] Compared with the prior art, the advantages of the present invention are:

[0027] First, the present invention can record the actual difference between the first monitoring element and the second monitoring element through the controller, thereby comparing the change of the actual difference with the initial difference to determine whether there is a height difference, i.e., a step difference phenomenon, between the paved road surface formed by the first ironing plate and the paved road surface formed by the second ironing plate. In addition, if the step difference phenomenon exists, the motor and the adjusting screw can be driven to adjust the height of the first ironing plate until the height difference between the first ironing plate and the second ironing plate is eliminated.

[0028] Secondly, the device realizes fully automatic control and adjustment through monitoring and adjustment mechanisms, thereby solving the error or delay problem caused by manual operation. In addition, this method can not only greatly reduce the labor intensity of manual labor, but also make the control more accurate, so as to obtain more comprehensive data.

[0029] In addition, since the monitoring device in this device is an ultrasonic sensor, it can quickly and accurately measure the height of the paved road surface. And since the ultrasonic signal is affected by environmental factors such as temperature and wind, the method of using the first ranging probe and the second ranging probe to evaluate is the most accurate value in the current scenario.

[0030] Third, the data of this device can be displayed simultaneously at the construction site and the rear command room, which makes the display more flexible and diverse, reduces the density of on-site construction personnel, and improves the safety of the construction site. In addition, the data can be stored synchronously in the on-site controller and the cloud server, which is convenient for storage and later tracking and tracing. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be described in detail below in conjunction with the accompanying drawings, in which:

[0032] Figure 1 The structure of the paving road surface step difference adjustment device according to the present invention is schematically shown;

[0033] Figure 2The structure of the first monitoring component is schematically shown.

[0034] In the drawings, the same reference numerals are used for the same components. The drawings are not drawn to scale. DETAILED DESCRIPTION

[0035] In order to make the technical solutions and advantages of the present invention more clearly understood, the exemplary embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than an exhaustive list of all the embodiments. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0036] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0037] In the present invention, unless otherwise clearly stipulated and limited, terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal connection of two elements.

[0038] For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The present invention will be further described below in conjunction with the accompanying drawings.

[0040] Figure 1 The structure of the paving road surface step difference adjustment device according to the present invention is schematically shown;

[0041] Figure 2 The structure of the first monitoring component is schematically shown.

[0042] like Figure 1 As shown, according to the first aspect of the present invention, a paving road surface step adjustment device is provided, which mainly includes a screed body 110 and a first telescopic body 120 arranged at the side end of the screed body 110. Preferably, a first screed plate 121 is arranged on the first telescopic body 120, and the first screed plate 121 contacts the paving road surface for compacting the road surface. Therefore, during the paving process, the paving material will be compacted under the action of the first screed plate 121 to form a paving road surface.

[0043] In one embodiment, a second screed plate 111 in contact with the paving road surface is provided on the screed body 110 , and during the paving process, the paving material is also compacted under the action of the second screed plate 111 to form a paving road surface.

[0044] At present, there is a problem that affects the paving quality during the paving process of the paver, that is, there will be a height difference (step difference phenomenon) between the paved road surface formed by the first telescopic body 120 and the paved road surface formed by the ironing body 110, which will cause a watershed mark to appear on the paved road surface, seriously affecting the road surface quality. In addition, this height difference will often occur when the width of the paving road changes, the driving speed of the paver changes, or when paving at a turn.

[0045] Therefore, in order to solve these problems, the present invention provides a monitoring mechanism and an adjusting mechanism adapted thereto, which will be described and explained in detail below.

[0046] In the present invention, during paving operations, the working conditions of the screed body 110 and the second screed plate 111 are usually relatively stable, so the actual height of the paved road surface formed by the screed body 110 remains unchanged. Therefore, by obtaining actual data about the first screed plate 121, the height difference between the paved road surface formed by the first telescopic body 120 and the paved road surface formed by the screed body 110 can be determined, as will be described below.

[0047] According to the present invention, Figure 1 As shown, the monitoring mechanism includes a first monitoring component 131, a second monitoring component 132 and a controller. Preferably, the first monitoring component 131 is arranged on the screed body 110, and is used to monitor the actual height between the paved road surface formed by the second screed plate 111 and the first monitoring component 131; the second monitoring component 132 is arranged on the first telescopic body 120, and is used to monitor the actual height between the paved road surface formed by the first screed plate 121 and the second monitoring component 132.

[0048] Preferably, the controller is connected to the first monitoring component 131 and the second monitoring component 132 respectively, and can receive recorded data from the first monitoring component 131 and the second monitoring component 132, thereby providing important technical support for subsequent judgment of whether there is a step difference phenomenon and whether the driving adjustment mechanism works.

[0049] Preferably, before the paving operation is performed, the initial difference values ​​measured by the first monitoring element 131 and the second monitoring element 132 are pre-inputted into the controller. During the paving process, due to the existence of the step difference phenomenon, there will be a height difference between the paved road surface formed by the first screed plate 121 and the paved road surface formed by the second screed plate 111. At this time, the controller can know that the actual difference value between the first monitoring element 131 and the second monitoring element 132 has changed compared with the initial difference value, and if it is not corrected within a period of time, the adjustment mechanism can be controlled to eliminate the step difference phenomenon.

[0050] It is worth noting that the change in the difference between the first monitoring element 131 and the second monitoring element 132 is usually caused by a height difference (ie, step difference) between the paved road surface formed by the first screed plate 121 and the paved road surface formed by the second screed plate 111 .

[0051] Preferably, when the first monitoring element 131 and the second monitoring element 132 are at an initial difference, there is no height difference between the paved road surface formed by the first screed plate 121 and the paved road surface formed by the second screed plate 111, that is, the height of the first screed plate 121 is completely consistent with the height of the second screed plate 111.

[0052] In one embodiment of the present invention, the first monitoring element 131 and the second monitoring element 132 are both configured as ultrasonic sensors. In this way, the height between the paved road surface and the monitoring element (i.e., the first monitoring element 131 or the second monitoring element 132) can be measured quickly and accurately, and according to whether the actual difference between the first monitoring element 131 and the second monitoring element 132 has changed compared with the initial difference, it can be determined whether there is a step difference between the paved road surface formed by the first screed plate 121 and the paved road surface formed by the second screed plate 111.

[0053] In one embodiment, Figure 2 As shown, the first monitoring member 131 and the second monitoring member 132 are both configured as a U-shaped structure, and both include a main body 133 configured in a plate-like form. Preferably, at least five first distance measuring probes 134 are arranged in the lateral direction at the lower end surface of the main body 133. Therefore, the actual height difference between the paved road surface formed by the first screed plate 121 and the paved road surface formed by the second screed plate 111 can be accurately measured by the first distance measuring probes 134.

[0054] In one embodiment, Figure 2 As shown, the first monitoring component 131 and the second monitoring component 132 both include a first mounting plate 135 and a second mounting plate 136 disposed on both sides of the main body 133. Preferably, a second distance measuring probe 137 is disposed on the first mounting plate 135.

[0055] In the present invention, the second ranging probe 137 emits an ultrasonic signal, which returns along the original path after encountering the second mounting plate 136 to obtain the time required for the entire transmission process. Since the distance between the first mounting plate 135 and the second mounting plate 136 is a fixed value, the ultrasonic flight speed under actual working conditions can be calculated in this way.

[0056] It is worth noting that since ultrasonic signals are affected by environmental factors such as temperature and wind, the ultrasonic flight speed obtained by the above method is the most accurate value in the current scenario.

[0057] In the present invention, the ultrasonic signals emitted by the first distance measuring probe 134 will all contact the paved surface and return along the original path, thereby obtaining five distance values ​​according to the ultrasonic flight speed obtained above. Preferably, the five values ​​will first remove two values ​​with large deviations, and then sum and average the remaining three relatively similar data to further obtain the actual distance between the ultrasonic sensor and the paved road surface, thereby helping to improve the accuracy of the operation of the device and eliminate the step difference phenomenon to the greatest extent.

[0058] In one embodiment, Figure 1 As shown, the paving road surface step adjustment device includes a support mechanism for fixing the first monitoring member 131 and the second monitoring member 132. Preferably, the support mechanism includes a support rod 141 arranged in the transverse direction, two fixing rods 142 arranged on the support rod 141 at intervals in the longitudinal direction, and an adjustment frame adapted to the fixing rod 142.

[0059] In the present invention, Figure 1 As shown, the fixing rod 142 is fixedly connected to the support rod 141. There are two adjustment racks, namely, the adjustment rack 144 and the adjustment rack 145. Preferably, the adjustment rack 144 is fixedly mounted on the ironing body 110, and the adjustment rack 145 is fixedly mounted on the first telescopic body 120. In addition, the fixing rod 142 is movably connected to the two adjustment racks, so that the height of the first monitoring member 131 or the second monitoring member 132 can be adjusted.

[0060] In one embodiment, Figure 1 As shown, a fixing seat is provided at the top of each of the first monitoring member 131 and the second monitoring member 132. Preferably, each of the first monitoring member 131 and the second monitoring member 132 is fixedly mounted on the support rod 141 through the fixing seat, so as to improve the stability and firmness of the support mechanism.

[0061] In one embodiment, Figure 1As shown, the adjustment mechanism is installed on the ironing body 110, and includes an adjustment screw 151 connected to the first ironing plate 121, a driving motor 152 arranged at an interval with the adjustment screw 151, and a conveyor belt 153 sleeved outside the adjustment screw 151 and the driving motor 152. Therefore, by rotating the driving motor 152 forward or reversely, the actual height of the first ironing plate 121 can be adjusted through the conveyor belt 153 and the adjustment screw 151, so that the height difference between the first ironing plate 121 and the second ironing plate 111 can be more easily eliminated.

[0062] According to a second aspect of the present invention, a paving machine is provided, comprising the paving road surface step difference adjustment device as described above, and a second telescopic body arranged on a side of the screed body 110 away from the first telescopic body 120 .

[0063] In the present invention, a vehicle-mounted control system is also provided in the paver, which sets a benchmark in the initial state (i.e., the controller records the initial difference measured by the first monitoring component 131 and the second monitoring component 132), and then obtains the actual difference between the first monitoring component 131 and the second monitoring component 132 in real time through the controller, so as to compare the actual difference with the initial difference to determine whether there is a step difference between the paved road surface formed by the first ironing plate 121 and the paved road surface formed by the second ironing plate 111. If there is a step difference, the vehicle-mounted control system analyzes and calculates the action instruction and sends it to the adjustment mechanism.

[0064] Furthermore, after receiving the action command from the controller, the adjusting mechanism can control the first ironing plate 121 according to the action command. In other words, the adjusting mechanism can adjust the height of the first ironing plate 121 in real time according to the signal sent by the controller, thereby eliminating the height difference between the first ironing plate 121 and the second ironing plate 111.

[0065] Preferably, the vehicle control system will upload all data to the cloud server through the DataBox data transmission terminal and store it, and the construction site can be monitored and viewed through the mobile phone APP or the command room web terminal.

[0066] According to a third aspect of the present invention, there is provided a method for adjusting the paving machine as described above, comprising the following steps:

[0067] First, the controller records the initial difference between the first monitoring element 131 and the second monitoring element 132, and then the controller records the actual difference between the first monitoring element 131 and the second monitoring element 132 in real time, thereby determining the height difference of the paved road surface formed by the first screed plate 121 and the second screed plate 111, so as to send an indication signal to the adjustment mechanism;

[0068] Then, the adjusting mechanism adjusts the height of the first ironing plate 121 by driving the motor 152 and the adjusting screw 151 until the height difference between the first ironing plate 121 and the second ironing plate 111 is eliminated.

[0069] Compared with the prior art, the advantages of the present invention are:

[0070] First, the present invention can record the actual difference between the first monitoring element 131 and the second monitoring element 132 through the controller, thereby comparing the change of the actual difference compared to the initial difference to determine whether there is a height difference, i.e., a step difference phenomenon, between the paved road surface formed by the first ironing plate 121 and the paved road surface formed by the second ironing plate 111. In addition, if there is a step difference phenomenon, the motor 152 and the adjusting screw 151 can be driven to adjust the height of the first ironing plate 121 until the height difference between the first ironing plate 121 and the second ironing plate 111 is eliminated.

[0071] Secondly, the device realizes fully automatic control and adjustment through monitoring and adjustment mechanisms, thereby solving the error or delay problem caused by manual operation. In addition, this method can not only greatly reduce the labor intensity of manual labor, but also make the control more accurate, so as to obtain more comprehensive data.

[0072] In addition, since the monitoring device in this apparatus is an ultrasonic sensor, the height of the paved road surface can be measured quickly and accurately. And since the ultrasonic signal is affected by environmental factors such as temperature and wind, the method of using the first ranging probe 136 and the second ranging probe 137 to evaluate the value is the most accurate value in the current scenario.

[0073] Third, the data of this device can be displayed simultaneously at the construction site and the rear command room, which makes the display more flexible and diverse, reduces the density of on-site construction personnel, and improves the safety of the construction site. In addition, the data can be stored synchronously in the on-site controller and the cloud server, which is convenient for storage and later tracking and tracing.

[0074] The above are only preferred embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art can easily make changes or modifications within the disclosure scope of the present invention, and such changes or modifications should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A paving road surface step adjustment device, comprising: Ironing body (110), A first telescopic body (120) is arranged at a side end of the ironing body (110), and a first ironing plate (121) in contact with a paved road surface is arranged on the first telescopic body (120); A monitoring mechanism, the monitoring mechanism comprising a first monitoring component (131) arranged on the ironing body (110), a second monitoring component (132) arranged on the first telescopic body (120), and a controller for recording an initial difference between the first monitoring component (131) and the second monitoring component (132); and an adjusting mechanism disposed on the ironing body (110) and connected to the first ironing plate (121), When the difference between the first monitoring component (131) and the second monitoring component (132) changes, the controller can change the position of the first ironing plate (121) through the adjustment mechanism, thereby eliminating the height difference of the paved road surface formed by the ironing body (110) and the first telescopic body (120).

2. The paving road surface step adjustment device according to claim 1, characterized in that: The first monitoring component (131) and the second monitoring component (132) are both configured as ultrasonic sensors.

3. The paving road surface step adjustment device according to claim 2, characterized in that: The first monitoring component (131) and the second monitoring component (132) are both configured as a U-shaped structure, and include a main body (133) configured in a plate-like form, and at least five first distance measuring probes (134) arranged on the lower end surface of the main body (133).

4. The paving road surface step adjustment device according to claim 3, characterized in that: The first monitoring component (131) and the second monitoring component (132) both include a first mounting plate (135) and a second mounting plate (136) arranged on both sides of the main body (133), wherein a second ranging probe (137) for measuring ultrasonic flight speed is provided on the first mounting plate (135).

5. The paving road surface step adjustment device according to claim 4, characterized in that: The paving road surface step adjustment device comprises a support mechanism for fixing the first monitoring component (131) and the second monitoring component (132), and the support mechanism comprises: A support rod (141) arranged in the transverse direction, two fixing rods (142) arranged on the support rod (141) at intervals in the longitudinal direction, and An adjustment frame is respectively arranged on the ironing body (110) and the first telescopic body (120) and adapted to the fixing rod (142), wherein the first monitoring component (131) and the second monitoring component (132) are installed on the supporting rod (141) via a fixing seat.

6. The paving road surface step adjustment device according to claim 5, characterized in that: A second ironing plate (111) in contact with the paving road surface is provided on the ironing body (110).

7. The paving road surface step adjustment device according to claim 6, characterized in that: When the first monitoring component (131) and the second monitoring component (132) are at an initial difference, the second ironing plate is at the same height as the first ironing plate (121).

8. The paving road surface step adjustment device according to claim 7, characterized in that: The adjustment mechanism comprises an adjustment screw (151) connected to the first ironing plate (121), a drive motor (152) arranged at a distance from the adjustment screw (151), and a conveyor belt (153) sleeved outside the adjustment screw (151) and the drive motor (152).

9. A paving machine, comprising a paving road surface step adjustment device according to any one of claims 1 to 8, and a second telescopic body arranged on a side of the screed body (110) away from the first telescopic body (120).

10. A method of adjustment, which utilizes the paving machine according to claim 9, comprising the following steps: S1. Recording the actual difference between the first monitoring component (131) and the second monitoring component (132) by the controller and comparing the difference with the initial difference, thereby determining the height difference between the paved road surface formed by the ironing body (110) and the first telescopic body (120), and sending an indication signal to the adjustment mechanism; S2. The height of the first ironing plate (121) is adjusted by the driving motor (152) and the adjusting screw (151) until the height difference between the first ironing plate (121) and the second ironing plate is eliminated.

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