Asphalt pavement maintenance method and vehicle with front-push roller

Abstract

A vehicle-mounted push roller comprises a fixed frame, a pair of connecting rods, a pair of locking devices, a fixing rod and left and right universal wheels arranged on the fixed frame, a lifting and lowering rolling steel wheel module, and a manual hydraulic pump connected to the rolling steel wheel module, wherein the connecting rods are symmetrically arranged on the left and right sides of the bottom of the fixed frame, a first limit plate and a second limit plate are arranged between the two connecting rods, and the first limit plate is higher than the second limit plate; the locking device can lock and connect the connecting rod and the fixing rod, and the fixing rod is provided with a third limit plate and a fourth limit plate; the present invention can use a truck to transport the roller, asphalt mixture and related staff at the same time, greatly reducing the cost of vehicles and manpower, and making road maintenance more flexible.

Description

Technical Field

[0001] The invention relates to the technical field of road maintenance equipment, and in particular to an asphalt road maintenance method and a vehicle-mounted forward-push roller. Background Art

[0002] With the rapid development of my country's economy, highway construction has developed rapidly. Among the existing main trunk roads in my country, more than 70% are asphalt pavements. However, due to the differences in asphalt materials themselves, as well as the influence of design and construction levels, asphalt pavements often suffer from common diseases such as cracking, oil spilling, looseness, and potholes. The emergence of these diseases seriously affects driving speed and driving safety, increases vehicle wear and tear, and shortens the service life of asphalt pavements.

[0003] Therefore, asphalt pavement should be regularly and preventively repaired, and localized, minor initial damage must be repaired in a timely manner. When facing cracks, potholes and other problems, the existing technology usually follows the following process: first determine the scope and depth of the damaged part, draw a groove repair contour line parallel or perpendicular to the road centerline, then groove to the stable part, with the groove wall vertical, and clean the groove bottom and groove wall, brush a layer of bonding asphalt on the groove wall, and then fill it with asphalt mixture that has been heated to the appropriate temperature, which should be slightly higher than the original ground, and then use a roller to flatten it.

[0004] The heating of asphalt mixture requires special machinery to stir-fry, and usually about 5 tons or 10 tons of asphalt mixture are stir-fried at a time. However, when repairing the road surface, usually only a few hundred kilograms of asphalt mixture are used. This leads to a problem, that is, we can't use so much stir-fried asphalt mixture when maintaining the road surface, and the remaining part can only be discarded or sent back to the factory, resulting in a huge waste of energy.

[0005] Moreover, compacting the asphalt mixture requires a roller. Due to the speed of the roller, an additional truck is usually used to transport the roller. In order to move the roller to the truck, a crane is also needed. In addition to the truck that transports the asphalt mixture, in order to repair a small pothole, we need to dispatch three vehicles and corresponding manpower, which greatly increases the cost of road maintenance. In addition, the project team usually needs to constantly transfer to repair potholes on different roads in the city. Therefore, it is necessary to constantly load and unload the roller, which wastes time and reduces work efficiency. It can be seen that traditional technology requires huge investment from municipal departments even for a small pothole.

[0006] On the other hand, when paving asphalt pavement, some extra asphalt mixture is prepared as a reserve material to prevent the asphalt mixture from being insufficient, and these reserve materials usually have surplus. After the pavement is paved, these surplus materials are generally discarded or wait for the factory to recycle, resulting in a waste of resources. If these surplus materials can be used, it will greatly save resources and reduce costs.

[0007] Therefore, the present invention discloses an asphalt pavement maintenance method and a vehicle-mounted push-type roller, which utilizes the remaining prepared materials after paving as the source of asphalt mixture for maintaining the pavement, thereby solving the problems of resource waste, high cost, low efficiency, etc. in the prior art. Summary of the invention

[0008] In order to solve the deficiencies in the prior art, the present invention provides an asphalt pavement maintenance method and a vehicle-mounted forward-push roller.

[0009] The technical solution of the present invention is:

[0010] The present invention provides an asphalt pavement maintenance method, comprising the following steps:

[0011] S1. Asphalt prefabricated square blocks: the remaining materials after the asphalt pavement is paved are pressed into square blocks of rated size using a hydraulic press and a mold;

[0012] S2, storage of square blocks, sealing the pressed square blocks with plastic film and storing them;

[0013] S3, cleaning of pits, cracks and broken parts, estimating the number of square blocks to be used according to the size of the pits or cracks, and digging square grooves of appropriate sizes;

[0014] S4. Spray asphalt binding oil evenly on the inner wall and bottom of the square groove;

[0015] S5, preheating the square plate, heating the square plate to 60-70 degrees in a heating furnace;

[0016] S6. Pothole crack treatment: put the preheated square plate into the square groove, and evenly sprinkle gravel particles at the joints between the square plate and the road surface, and at the joints between the square plates;

[0017] S7, compacting the square plate, compacting and flattening the square plate with a roller;

[0018] S8. Process the next pit or crack and repeat steps S3 to S7.

[0019] Furthermore, the length of the square block is 300 mm, the width is 300 mm, and the thickness is 45 mm.

[0020] A vehicle-mounted push roller comprises a fixed frame, a pair of connecting rods, a pair of locking devices, a fixing rod, left and right universal wheels arranged on the fixing frame, a lifting and lowering rolling steel wheel module, and a manual hydraulic pump connected to the rolling steel wheel module, wherein the connecting rods are symmetrically arranged on the left and right sides of the bottom of the fixing frame, a first limit plate and a second limit plate are arranged between the two connecting rods, and the first limit plate is higher than the second limit plate. The locking device can lock and connect the connecting rod with the fixing rod, and the fixing rod is provided with a third limit plate and a fourth limit plate.

[0021] Furthermore, the rolled steel wheel module includes left and right rolled steel wheel frames, left and right arc-shaped spring steel plates, rolled steel wheels, and left and right oil cylinders. The rolled steel wheel can move up and down under the joint action of the left and right oil cylinders and the left and right arc-shaped spring steel plates.

[0022] Furthermore, when the rolled steel wheel moves to the lowest point, the left and right universal wheels are 3 to 5 cm off the ground; when the rolled steel wheel moves to the highest point, the left and right universal wheels contact the ground and support the fixed frame.

[0023] Furthermore, the length of the connecting rod is greater than or equal to 1.8 m.

[0024] Furthermore, the height of the first limiting plate is greater than or equal to 12 cm, the height of the second limiting plate is greater than or equal to 4 cm, the distance between the first limiting plate and the second limiting plate is greater than or equal to 8 cm, and the distance between the first limiting plate and the fixed frame is greater than or equal to 1.2 m.

[0025] Furthermore, the locking device includes a locking rod, a connecting rod ring sleeve arranged at one end of the locking rod and matched with the connecting rod, and a fixing rod ring sleeve arranged at the other end of the locking rod and matched with the fixing rod.

[0026] Furthermore, the length of the locking device is greater than or equal to 65 cm.

[0027] Furthermore, the distance between the third limiting plate and the fourth limiting plate is greater than or equal to 1.1 m.

[0028] The beneficial effects achieved by the present invention are:

[0029] The present invention provides a new road maintenance method, which can effectively utilize the residual materials left over from road repair, solve the contradiction between the previous asphalt mixture required for each road maintenance being too little and the equipment frying too much asphalt mixture at one time, avoid the waste caused by the equipment frying too much asphalt mixture, and save resources, energy, and money.

[0030] At the same time, it also reduces the time required for municipal departments to maintain the road surface, avoids the problem of municipal departments being unwilling to maintain a small number of potholes on the road due to huge costs, and improves the work performance and efficiency of municipal departments.

[0031] In addition, the present invention also provides a vehicle-mounted front-push roller, which can lift the front wheels of the truck through liftable rolling steel wheels, connecting rods and other components, and then use the weight of the truck to increase the pressure of the rolling steel wheels, thereby solving the contradiction between portability and efficiency of previous rollers.

[0032] In summary, the present invention can use a truck to transport a road roller, asphalt mixture and related workers at the same time, greatly reducing the cost of vehicles and manpower, making road maintenance more flexible. The municipal department can quickly maintain the road surface of the entire city with a truck, truly achieving the goal of immediately starting to maintain the road surface after receiving a call from a citizen, making a huge contribution to civilized cities. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a stereogram of the present invention.

[0034] Figure 2 It is a side view when the rolling steel wheel of the present invention is located at the lowest point.

[0035] Figure 3 It is a side view when the rolling steel wheel of the present invention is located at the highest point.

[0036] Figure 4 It is a top view of the present invention.

[0037] Figure 5 It is a rear view of the present invention.

[0038] Figure 6 It is a schematic diagram of the structure of the rolling steel wheel module of the present invention.

[0039] In the figure, 100, fixed frame; 110, connecting rod; 111, first limit plate; 112, second limit plate; 113, support wheel; 114, support rod; 115, interception plate; 120, locking rod; 121, connecting rod ring; 122, fixed rod ring; 130, fixed rod; 140, universal wheel; 150, rolled steel wheel frame; 151, rolled steel wheel; 152, oil cylinder; 153, arc spring steel plate; 154, free end; 160, manual hydraulic pump. DETAILED DESCRIPTION

[0040] To facilitate those skilled in the art to understand the present invention, specific implementations of the present invention are described below with reference to the accompanying drawings.

[0041] The present invention provides an asphalt pavement maintenance method, comprising the following steps:

[0042] S1, asphalt prefabricated square blocks, the remaining materials after the asphalt pavement is paved are pressed into square blocks of rated size by a hydraulic press and a mold, the length of the square block is: 300mm, the width is: 300mm, the thickness is: 45mm;

[0043] S2, storage of square blocks, sealing the pressed square blocks with plastic film and storing them;

[0044] S3, cleaning of pits, cracks and broken parts, estimating the number of square blocks to be used according to the size of the pits or cracks, and digging square grooves of appropriate sizes;

[0045] S4. Spray asphalt bonding oil evenly on the inner wall and bottom of the square groove to better bond the square plate with the road surface;

[0046] S5, preheating the square plate, heating the square plate to 60-70 degrees in a heating furnace;

[0047] S6. Pothole crack treatment: put the preheated square blocks into the square grooves, and evenly sprinkle gravel particles at the joints between the square blocks and the road surface, and at the joints between the square blocks; this ensures that the board seams are not visible after the square blocks are flattened and compacted, making the road surface more beautiful;

[0048] S7, compacting the square plate, compacting and flattening the square plate with a roller;

[0049] S8. Process the next pit or crack and repeat steps S3 to S7.

[0050] The heating furnace can be an electric heating furnace or a gas heating furnace, comprising a bracket, an electric heating wire or a gas stove, and a thick aluminum plate, wherein the electric heating wire or the gas stove is arranged at the bottom of the thick aluminum plate, and the thick aluminum plate is arranged on the bracket. When working, the square plate can be placed on the thick aluminum plate to complete the heating.

[0051] like Figures 1 to 6As shown, the present invention provides a vehicle-mounted push-type roller, including a fixed frame 100, a pair of connecting rods 110, a supporting wheel module, a pair of locking devices, a fixed rod 130 and a pair of universal wheels 140 arranged on the fixed frame 100, a lifting and lowering rolling steel wheel module, and a manual hydraulic pump 160 connected to the rolling steel wheel module. The connecting rods 110 are symmetrically arranged on the left and right sides of the bottom of the fixed frame 100, and the length of the connecting rods 110 is: greater than or equal to 1.8m. A first limiting plate 111 and a second limiting plate 112 are arranged between the two connecting rods 110, the first limiting plate 111 is higher than the second limiting plate 112, an intercepting plate 115 is arranged on the first limiting plate 111, and a fixing groove is formed between the first limiting plate 111 and the second limiting plate 112. Among them, the height of the first limiting plate 111 is: greater than or equal to 12 cm, the height of the second limiting plate 112 is: greater than or equal to 4 cm, the distance between the first limiting plate 111 and the second limiting plate 112 is: greater than or equal to 8 cm, and the distance between the first limiting plate 111 and the fixed frame 100 is: greater than or equal to 1.2 m.

[0052] The first limit plate 111 provides a fulcrum for the truck to push the roller forward, and also prevents the roller from colliding with the truck. The second limit plate 112 provides a fulcrum for the truck to pull the roller backward. The second limit plate 112 is lower than the first limit plate 111 to facilitate the insertion of the connecting rod 110 into the bottom of the truck.

[0053] The support wheel module includes a support rod 114 and a pair of support wheels 113. The support rod 114 is arranged between two connecting rods, and the support wheels 113 are symmetrically arranged on the support rod 114. When the support wheels 113 contact the ground, the connecting rod is inclined downward. The function of the support wheel module is to ensure that the road roller can move quickly when it is not installed on a truck.

[0054] The locking device includes a locking rod 120, a connecting rod ring 121 provided at one end of the locking rod 120 and matched with the connecting rod 110, and a fixing rod ring 122 provided at the other end of the locking rod 120 and matched with the fixing rod 130. The sizes of the connecting rod ring 121 and the fixing rod ring 122 are just enough for the connecting rod 110 and the fixing rod 130 to be smoothly inserted respectively, and the locking device can lock and connect the connecting rod 110 and the fixing rod 130. The length of the locking device is: greater than or equal to 65 cm.

[0055] The fixing rod 130 is a round rod, and a third limiting plate and a fourth limiting plate are provided on the fixing rod 130. The distance between the third limiting plate and the fourth limiting plate is: greater than or equal to 1.1m. The installation method of the fixing rod 130 is: first make the third limiting plate and the fourth limiting plate parallel to the bottom of the truck, and then insert the fixing rod 130 into the two frame beams of the truck. Finally, let go, and the third limiting plate and the fourth limiting plate will drive the fixing rod 130 to rotate downward under the action of gravity. At this time, the third limiting plate and the fourth limiting plate are vertical to the ground and are stuck between the two frame beams of the truck, so that the fixing rod 130 is fixed to the bottom of the truck.

[0056] Further, the rolling steel wheel module includes left and right arc spring steel plates 153, left and right rolling steel wheel frames 150, rolling steel wheels 151, and left and right oil cylinders 152. The left and right arc spring steel plates 153 each include a free end 154 and a fixed end. The left and right arc spring steel plates 153 are symmetrically arranged on both sides of the fixed frame 100. The fixed ends of the left and right arc spring steel plates 153 are connected to the fixed frame 100. The free ends 154 of the left and right arc spring steel plates 153 can slide left and right on the connecting rod. The left and right rolling steel wheel frames 150 are respectively arranged on the left and right arc spring steel plates 153, and the rolling steel wheel 151 is arranged between the left and right rolling steel wheel frames 150. The rolling steel wheel 151 can rotate freely. The left and right oil cylinders 152 are respectively arranged on the left and right rolling steel wheel frames 150, and the piston rods of the left and right oil cylinders 152 are fixedly connected to the fixed frame 100. In this way, the rolling steel wheel 151 can move up and down under the joint action of the left and right oil cylinders 152 and the left and right arc spring steel plates 153.

[0057] Furthermore, when the rolling steel wheel 151 moves to the lowest point, the left and right universal wheels 140 are both 3 to 5 cm off the ground. At this time, the roller enters the working mode, and the front wheels of the truck are lifted. The roller can use the weight of the truck to quickly flatten and compact the asphalt mixture. When the rolling steel wheel 151 moves to the highest point, the front wheels of the truck touch the ground, and the left and right universal wheels 140 contact the ground and support the fixed frame 100. At this time, the roller can move and turn quickly driven by the truck.

[0058] Specifically, the method of using a vehicle with a push-type roller is as follows:

[0059] First, the staff hoisted the road roller onto the truck through a small manpower gantry crane or other manpower tools installed on the truck, and the staff drove the truck to the vicinity of the problem road surface. After that, the road roller was hoisted down in the same way, and the road roller was pushed in front of the truck, and the locking structure was hung on the left and right ends of the fixed rod 130. Then, the connecting rod 110 was inserted into the bottom of the truck until the first limit plate 111 hit the front axle beam of the truck. At this time, the connecting rod 110 was leveled, so that the front axle beam of the truck was stuck between the first limit plate 111 and the second limit plate 112. Finally, the connecting rod 110 was connected to the fixed rod 130 with a locking structure. At this time, the locking structure was perpendicular to the fixed rod 130 and the connecting rod 110, respectively, and the fixed rod 130 and the connecting rod 110 were parallel to each other. Under the action of gravity, the connecting rod 110 has a downward pulling force on the locking device. Under the action of this pulling force, the connecting rod 110, the locking device, and the fixed rod 130 fit tightly and cannot be separated.

[0060] At this time, the rolling steel wheel 151 is at the highest point, the left and right arc-shaped spring steel plates 153 are in a relaxed state, and the universal wheel 140 contacts the ground, so the staff can quickly turn and adjust the forward direction of the roller. After the forward direction of the roller is adjusted, the staff extends the piston rods of the left and right oil cylinders 152 through the manual hydraulic pump 160, thereby driving the rolling steel wheel 151 to move downward, and exerting downward pressure on the left and right arc-shaped spring steel plates 153, so that the left and right arc-shaped spring steel plates 153 are both in a contracted state. When the rolling steel wheel 151 moves to the lowest point, the universal wheel 140 and the front wheel of the truck are lifted. At this time, the weight of the truck is pressed between the first limit plate 111 and the second limit plate 112, which, on the one hand, gives the connecting rod 110 a greater downward force, so that the connecting rod 110, the locking device, and the fixing rod 130 are locked more tightly; on the other hand, it also makes the rolling steel wheel 151 obtain greater pressure, thereby improving the working efficiency of the road roller. After construction, just turn on the switch of the manual hydraulic pump 160, and the rolling steel wheel 151 will automatically return to the initial position under the elastic force of the arc spring steel plate 153.

[0061] The present invention solves the contradiction between portability and efficiency of the transmission roller by means of a very simple structure and ingenious design.

[0062] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A vehicle equipped with a push-type roller, characterized in that: It includes a fixed frame, a pair of connecting rods, a pair of locking devices, a fixed rod and left and right universal wheels arranged on the fixed frame, a lifting and lowering rolling steel wheel module, and a manual hydraulic pump connected to the rolling steel wheel module. The connecting rods are symmetrically arranged on the left and right sides of the bottom of the fixed frame. A first limit plate and a second limit plate are arranged between the two connecting rods. The first limit plate is higher than the second limit plate, and an interception plate is arranged on the first limit plate. The locking device can lock and connect the connecting rod with the fixed rod, and a third limit plate and a fourth limit plate are arranged on the fixed rod. The rolling steel wheel module includes left and right arc spring steel plates, left and right rolling steel wheel frames, rolling steel wheels, and left and right oil cylinders. The rolling steel wheel can move up and down under the joint action of the left and right oil cylinders and the left and right arc spring steel plates. When the rolling steel wheel moves to the lowest point, the left and right universal wheels are 3 to 5 cm off the ground; when the rolling steel wheel moves to the highest point, the left and right universal wheels touch the ground and support the fixed frame; The locking device comprises a locking rod, a connecting rod ring sleeve arranged at one end of the locking rod and matched with the connecting rod, and a fixing rod ring sleeve arranged at the other end of the locking rod and matched with the fixing rod.

2. The vehicle-mounted push-type roller according to claim 1, characterized in that: The length of the connecting rod is greater than or equal to 1.8 m.

3. The vehicle-mounted push-type roller according to claim 2, characterized in that: The height of the first limiting plate is greater than or equal to 12 cm, the height of the second limiting plate is greater than or equal to 4 cm, the distance between the first limiting plate and the second limiting plate is greater than or equal to 8 cm, and the distance between the first limiting plate and the fixed frame is greater than or equal to 1.2 m.

4. The vehicle-mounted push-type roller according to claim 1, characterized in that: The length of the locking device is greater than or equal to 65 cm.

5. The vehicle-mounted push-type roller according to claim 1, characterized in that: The distance between the third limiting plate and the fourth limiting plate is greater than or equal to 1.1 m.

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