Heavy road paving mechanized laying and removing trailer

Abstract

The utility model discloses a kind of heavy road surface mechanization paving and withdrawing operation trailer, including chassis assembly, and platform assembly, slewing bearing, diesel pump station and hydraulic transmission system being installed on the chassis assembly, the slewing bearing is fixed on chassis assembly, support platform assembly and can drive its slewing;The platform assembly is equipped with double spool assembly and winding mechanism, and the double spool assembly includes left and right spool, winding mechanism drives left and right spool independently rotating respectively;The diesel pump station includes diesel engine and hydraulic pump, and power is transmitted to the winding mechanism by the hydraulic transmission system.The utility model is mainly used for heavy road surface storage and mechanization paving and withdrawing operation, can quickly follow-up laying heavy road surface and can be in mechanization mode and withdraw and collect road surface, operation efficiency is high, and with good trafficability and applicability.

Description

Technical Field

[0001] This utility model belongs to the field of special trailer technology, specifically, it relates to a special trailer for mechanized paving of heavy-duty rigid-flexible composite road surface (hereinafter referred to as heavy-duty road surface). Background Technology

[0002] When heavy-duty wheeled and tracked vehicles traverse low-load-bearing areas such as soft beaches, riverbanks, paddy fields, and muddy roads, they are prone to slipping, sinking, and becoming stuck. To overcome the obstruction of low-load-bearing foundations to the passage of heavy vehicles, high-load-bearing heavy-duty pavement materials are often used to isolate the wheels or tracks from direct contact with the foundation. Heavy-duty pavement overcomes the obstacles of low-load-bearing areas such as soft beaches, riverbanks, paddy fields, and muddy roads, and can be used to ensure the rapid passage of heavy-duty (60-ton) tracked and wheeled (13-ton axle load) vehicles. It can also be used to construct emergency access routes for disaster relief and rescue, and helicopter landing pads in the field. For example, one type of heavy-duty rigid-flexible composite pavement, approximately 4 meters wide, is available in three lengths in roll form: 8 meters, 30 meters, and 72 meters. The basic unit segment is 8 meters long and weighs no more than 360 kg. It can be unfolded manually by lifting and rolling, and the units can be quickly spliced ​​together. The 72-meter-long pavement can be airlifted by helicopter and unfolded pneumatically, or carried by a road work vehicle and laid mechanically. A single 30-meter-long roll of pavement has a diameter of about 1 meter and weighs no more than 1360 kg. It cannot be lifted manually, and laying it by rolling is difficult.

[0003] CN202121207270.1 discloses a polyurethane flexible emergency pavement construction vehicle, which can quickly lay polyurethane flexible emergency pavement to solve road traffic problems. However, the vehicle is only equipped with one I-beam reel, which is large in size and has a high center of gravity, making it difficult to turn and also unfavorable for operation and transportation in narrow terrain.

[0004] CN202323006751.8 discloses a mechanized emergency road paving vehicle, which uses a loader as a carrier and can quickly switch between the loader and road machinery. However, the vehicle disclosed in this patent cannot solve the problem of integrated heavy road transportation and paving and dismantling. During on-site operations, additional trailers (or tractors) are required for support, which affects the paving and dismantling speed.

[0005] CN201610138274.6 discloses a roll-type road paving follow-up system, which can be installed on a flatbed truck for rapid road paving. However, it has problems such as weak steering ability and poor passability.

[0006] CN200820031683.7 discloses a roll-type road paving follow-up system, which is installed on a dual-axle center-mounted trailer for rapid paving and removal of light-duty roads. However, due to the lack of a steering axle, the steering diameter is too large and easily causes hard friction wear on the inner tires. Because it is designed specifically for light-duty roads, its chassis load-bearing capacity is limited, and removal can only be carried out by manual winding.

[0007] Currently, no heavy-duty road trailers (or tractors) have been publicly seen. Summary of the Invention

[0008] To overcome the difficulties in paving and dismantling heavy-duty roads, this utility model provides a heavy-duty road mechanized paving and dismantling trailer (or tractor), which can quickly and dynamically lay heavy-duty roads and transport them mechanically. It is mainly used for the storage, transportation, and mechanized paving and dismantling of heavy-duty roads. The trailer (or tractor) features high reliability, strong maneuverability under complex road conditions, strong paving and dismantling capabilities, good transport mobility, and a wide range of applications.

[0009] To achieve the above-mentioned objectives, the technical solution of this utility model is as follows: A heavy-duty mechanized road paving trailer includes a chassis assembly, characterized in that it further includes a platform assembly, a slewing bearing, a diesel-powered pump station, and a hydraulic transmission system mounted on the chassis assembly. The slewing bearing is fixed to the chassis assembly, supports the platform assembly, and can drive it to rotate. The platform assembly is provided with a double-spindle assembly and a winding mechanism. The double-spindle assembly includes left and right spindles, and the winding mechanism drives the left and right spindles to rotate independently. The diesel-powered pump station includes a diesel engine and a hydraulic pump, which transmits power to the winding mechanism through the hydraulic transmission system.

[0010] Furthermore, the platform assembly includes a platform frame, and the dual-spool assembly is mounted on the platform frame, including symmetrically arranged left and right spools. Heavy road surface is wound onto the left and right spools of the dual-spool assembly to form left and right road surface rolls, respectively. The winding mechanism includes a motor winding mechanism and a manual winding mechanism. The left and right spools are arranged along the axial direction, with the motor winding mechanism at one end and the manual winding mechanism at the other end. Both winding mechanisms can drive the spools to rotate clockwise or counterclockwise to achieve the laying or unwinding of the road surface. The platform assembly also includes locking devices, which are located on both sides of the platform frame and can lock the platform assembly for securing it during road transport.

[0011] Furthermore, the motor winding mechanism includes a drive motor and a reducer. The hydraulic power provided by the diesel-powered pump station is transmitted to the drive motor through a hydraulic transmission system. The drive motor is independently connected to the left and right spools of the dual-spool assembly via the reducer, and can drive the road surface roll to rotate during operation. The manual winding mechanism includes a detachable crank handle and a reducer, and the reducer is independently connected to the left and right spools.

[0012] Furthermore, the slewing bearing is primarily used for switching between the platform assembly's operating and transportation states. The slewing bearing includes a support base and an inner slewing ring, which can rotate within the support base. The support base is welded to the chassis assembly, and the inner slewing ring is fixedly connected to the platform assembly above it. The slewing bearing supports the platform assembly and enables its rotation. The slewing bearing also includes a locating pin for securing the bearing and preventing additional deflection during transportation and operation.

[0013] The diesel-powered pump station is located at the front end of the platform assembly on the chassis assembly and mainly consists of a diesel engine and a hydraulic pump. It is used to provide power to the hydraulic transmission system and is mainly used to drive road paving operations.

[0014] The hydraulic transmission system includes control valves, hydraulic lines, connectors, oil tanks, etc., and together with hydraulic pumps, drive motors, etc., forms the hydraulic system of this device. The hydraulic transmission system is mainly located in the lower part and side of the chassis assembly.

[0015] The device also includes a hydraulic pick, which is used for stake planting during road surface mooring.

[0016] Furthermore, the chassis assembly mainly consists of a front frame assembly, a main frame assembly, a suspension system, a braking system, a reversing lock mechanism, and a wheel and axle assemblies. A front axle steering device is installed on the chassis assembly. The chassis assembly is primarily used for land transportation, supporting the slewing bearing, and connecting the tractor unit.

[0017] Furthermore, the heavy-duty mechanized road paving trailer also includes an electrical assembly located at the rear of the chassis assembly, used to operate the trailer (or tractor) for paving the road surface and to control the taillights of the trailer (or tractor).

[0018] The heavy-duty road mechanized paving and dismantling trailer of this utility model includes two modes: a transport mode and a working mode. In the working mode, it can complete the paving and dismantling of heavy-duty roads. In transport mode, the platform assembly axis is parallel to the chassis longitudinal beam, and the left and right reels of the double reel assembly are aligned with the trailer's running direction. In working mode, the platform assembly axis is perpendicular to the chassis longitudinal beam, and the left and right reels of the double reel assembly are perpendicular to the trailer's running direction. During paving, the slewing bearing is manually operated to rotate the platform assembly 90°, adjusting the double reel assembly to the working mode. The winding mechanism drives the left or right reel to rotate and release the road surface, while simultaneously directing the tractor to reverse, so that one end of the road surface is pressed under the trailer wheels, thus completing the road paving. During dismantling, the double reel assembly is similarly adjusted to the working mode. First, the left (or right) reel is rotated 90° counterclockwise (or clockwise) to place it at the rear. The winding mechanism drives the left or right reel to rotate in the opposite direction, while simultaneously directing the tractor to move forward at the same speed, dismantling half of the road surface onto the left reel. Then rotate 180° counterclockwise (or clockwise) and place the right (or left) reel behind. Use the same method to retract the other half of the road surface onto the right reel.

[0019] Beneficial effects: This utility model's heavy-duty road mechanized paving and dismantling trailer (or tractor) is mainly used for the storage, transportation, and mechanized paving and dismantling of heavy-duty roads. It can quickly and dynamically lay heavy-duty roads and dismantle them mechanically. Its advantages include: 1. Improved efficiency in road paving and removal using trailers. The trailers utilize a diesel-powered pump station to drive a hydraulic system, while the road reel is powered by a low-speed, high-torque motor driving a reducer, thus mechanizing the paving and removal process. During paving and removal operations, specialized paving vehicles are not required; the trailers can be towed by a tractor, reducing the workload of moving the reel and increasing the efficiency of single-vehicle operations. Multiple vehicles can also work together.

[0020] 2. Improved maneuverability of the trailer (or tractor): The trailer (or tractor) uses a double-drum winding system to wind around the road surface, reducing the load center height of the trailer (or tractor). The trailer (or tractor) uses a front-wheel-driven steering axle, reducing the turning radius of the trailer (or tractor), improving stability during turning, and reducing the probability of damage to the front axle of the trailer (or tractor).

[0021] 3. Improved applicability of trailers (or tractors). The aforementioned trailers (or tractors) have good off-road capability, excellent suspension shock absorption, a reasonable center of gravity design, adjustable towing height with the main vehicle, fast towing speed, and good maintenance support. Trailers (or tractors) can be towed by heavy-duty trucks or off-road vehicles. They can be equipped with their own road surface to ensure passage on soft ground and are less likely to get stuck on low-load-bearing surfaces. Attached Figure Description

[0022] Figure 1This is a schematic diagram of the heavy-duty mechanized road paving and dismantling trailer (operation mode) of this utility model; Figure 2 This is a schematic diagram of the heavy-duty mechanized road paving and dismantling trailer (transportation mode) of this utility model; Among them, 1 chassis assembly, 2 platform assembly, 3 slewing bearing, 4 locking device, 5 diesel-powered pump station, 6 hydraulic transmission system, and 7 electrical system; Figure 3 Chassis assembly front view; Figure 4 Top view of the chassis assembly; Among them, 1-1 front frame assembly, 1-2 main frame assembly, 1-3 suspension system, 1-4 braking system, 1-5 reversing locking mechanism, and 1-6 wheel axle assembly; Figure 5 Platform assembly main view; Figure 6 Left view of the platform assembly; Among them, 2-1 is the double-shaft assembly, 2-2 is the reducer, 2-3 is the platform frame, 2-4 is the drive motor, 2-5 is the motor winding mechanism, and 2-6 is the manual winding mechanism. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments. However, it should be noted that the following embodiments are only used to describe the content of the invention and do not constitute a limitation on the protection scope of this utility model.

[0024] like Figure 1 and Figure 2 As shown, a heavy-duty mechanized road paving trailer mainly consists of a chassis assembly 1, a platform assembly 2, a slewing bearing 3, a locking device 4, a diesel-powered pump station 5, a hydraulic transmission system 6, and an electrical system 7.

[0025] like Figure 3 and Figure 4 The chassis assembly 1 mainly consists of a front frame assembly 1-1, a main frame assembly 1-2, a suspension system 1-3, a braking system 1-4, a reversing lock mechanism 1-5, and axle assemblies 1-6. The chassis assembly 1 is equipped with a front axle steering device. The chassis assembly 1 is mainly used for land transportation, supporting the slewing bearing, and connecting the tractor unit.

[0026] The slewing bearing 3 includes a support base and a slewing inner ring within the support base, the inner ring of which can rotate within the support base. The support base of the slewing bearing 3 is fixedly welded to the chassis assembly 1, and the inner ring of the slewing bearing is fixedly connected to the platform assembly 2 above it. The slewing bearing 3 supports the platform assembly 2 and enables its rotation. A simple way to rotate the platform assembly 2 is by manual pushing. The slewing bearing 3 can rotate 90° to the left or right under manual pushing, switching the platform assembly 2 to the working state of laying and dismantling operations. When switching to the transportation state, the platform assembly 2 can be reset via the slewing bearing 3. The slewing bearing 3 also includes a positioning pin, which is used to secure the inner ring of the slewing bearing after the platform assembly 2 has rotated to the corresponding working state, preventing additional deflection during transportation or operation.

[0027] like Figure 5 and Figure 6 The platform assembly 2 includes a platform frame 2-3 and a double-spindle assembly 2-1 mounted on the platform frame 2-3. The double-spindle assembly 2-1 includes symmetrically arranged left and right spindles. Heavy road surfaces are wound onto the left and right spindles of the double-spindle assembly 2-1 to form left and right road surface rolls, respectively. Along the axial direction, a motor winding mechanism 2-5 is arranged at one end of the left and right spindles, and a manual winding mechanism 2-6 is arranged at the other end. The motor winding mechanism 2-5 includes a drive motor 2-4 and a reducer 2-3. The drive motor 2-4 is independently connected to the left and right spindles of the double-spindle assembly 2-1 via the reducer 2-2, and can drive the road surface rolls to rotate during operation. The power of the drive motor 2-4 comes from the hydraulic pump in the diesel-powered pump station 5, and the hydraulic power is transmitted to the drive motor 2-4 through the hydraulic transmission system 6. The manual winding mechanism 2-6 includes a detachable crank and a reducer 2-2, with the reducer 2-2 independently connected to the left and right winding shafts. Both the motor winding mechanism 2-5 and the manual winding mechanism 2-6 can drive the left or right winding shafts to rotate clockwise or counterclockwise, enabling the laying and unlaying of the road surface. The platform assembly 2 is equipped with a locking device 4, located on both sides of the platform frame 2-3, with its bottom fixed to the chassis assembly 1. This device locks the platform assembly 2 for use during road transport.

[0028] See also Figure 1 The diesel-powered pump station 5 is fixed to the chassis assembly 1 and located at the front end of the platform assembly 2, providing power to the hydraulic system. It includes a diesel engine and a hydraulic pump. The hydraulic transmission system 6 is mainly located at the bottom and sides of the chassis assembly 1, including control valves, hydraulic lines, connectors, and an oil tank, forming a hydraulic system together with the hydraulic pump and drive motor. The hydraulic system also includes a vehicle-mounted hydraulic pick, used for stake planting operations during road surface mooring. The diesel-powered pump station 5 and the hydraulic transmission system 6 are mainly used to drive road paving operations and the operation of the hydraulic pick.

[0029] The electrical assembly 7 is located at the rear of the chassis assembly 1 and is used to operate the trailer (or tractor) to pave the road surface and control the taillights of the trailer (or tractor).

[0030] The workflow for the heavy-duty mechanized road paving trailer is as follows: First, start the diesel-powered pump station 5, release the locking device 4, manually push the platform assembly 2, rotate it 90° with the help of the slewing bearing 3, and insert the positioning pin of the slewing bearing 3 to lock it in place. Adjust the double-spindle assembly 2-1 to the working mode. Next, drive the left or right spindle to rotate through the motor winding mechanism 2-5 or the manual winding mechanism 2-6, releasing the road surface from the left or right road surface roll. At the same time, direct the tractor vehicle to reverse so that one end of the road surface is pressed under the trailer (or tow) wheels. The tractor vehicle drives the trailer (or tow) to continue reversing, driving the left or right spindle to rotate to complete the road surface paving. After the road surface of one roll is released, manually push the platform assembly 2 to rotate 180° and lay the other roll of road surface using the above steps.

[0031] The recovery operation process is as follows: First, start the diesel-powered pump station 5, release the locking device 4, manually push the platform assembly 2 to rotate it 90°, and insert the positioning pin of the slewing bearing 3 to lock it in place. Adjust the double-shaft assembly 2-1 to the working mode. Next, rotate the left (or right) spool 90° counterclockwise (or clockwise) to place it at the rear. The motor winding mechanism 2-5 or the manual winding mechanism 2-6 drives the left or right spool to rotate in the opposite direction, while simultaneously pulling the vehicle forward at the same speed, recovering half of the road surface onto the left spool. After recovering one section of the road surface, rotate the right (or left) spool 180° counterclockwise (or clockwise) to place it at the rear, and use the same method to recover the other half of the road surface onto the right spool.

Claims

1. A heavy-duty mechanized road paving trailer, comprising a chassis assembly, characterized in that, It also includes a platform assembly, a slewing bearing, a diesel-powered pump station, and a hydraulic transmission system mounted on the chassis assembly. The slewing bearing is fixed to the chassis assembly, supports the platform assembly, and can drive it to rotate. The platform assembly is equipped with a double-spindle assembly and a winding mechanism. The double-spindle assembly includes left and right spindles, and the winding mechanism drives the left and right spindles to rotate independently. The diesel-powered pump station includes a diesel engine and a hydraulic pump, which transmits power to the winding mechanism through the hydraulic transmission system.

2. The heavy-duty mechanized road paving trailer according to claim 1, characterized in that, The platform assembly includes a platform frame, and the dual-spindle assembly is mounted on the platform frame. It includes symmetrically arranged left and right spindles, and heavy road surfaces are wound onto the left and right spindles of the dual-spindle assembly to form left and right road surface rolls, respectively. The winding mechanism includes a motor winding mechanism and a manual winding mechanism. The left and right spindles are arranged along the axial direction, with the motor winding mechanism at one end and the manual winding mechanism at the other end.

3. The heavy-duty mechanized road paving trailer according to claim 2, characterized in that, The motor winding mechanism includes a drive motor and a reducer. The hydraulic power provided by the diesel-powered pump station is transmitted to the drive motor through a hydraulic transmission system. The drive motor is independently connected to the left and right winding shafts through the reducer. The manual winding mechanism includes a detachable crank handle and a reducer. The reducer is independently connected to the left and right winding shafts.

4. The heavy-duty mechanized road paving trailer according to claim 2, characterized in that, The platform assembly also includes a locking device, which is disposed on both sides of the platform frame.

5. The heavy-duty mechanized road paving trailer according to claim 1, characterized in that, The slewing bearing includes a support base and a slewing inner ring, which can rotate within the support base; the support base is welded to the chassis assembly, and the slewing inner ring is fixedly connected to the platform assembly above.

6. The heavy-duty mechanized road paving trailer according to claim 1, characterized in that, The slewing bearing also includes a locating pin.

7. The heavy-duty mechanized road paving trailer according to claim 1, characterized in that, The diesel-powered pump station includes a diesel engine and a hydraulic pump, which are arranged on the front end of the platform assembly on the chassis assembly.

8. The heavy-duty mechanized road paving trailer according to claim 1, characterized in that, The hydraulic transmission system includes an oil tank, control valves, hydraulic lines and connectors, which are mainly located in the lower part and side of the chassis assembly.

9. The heavy-duty mechanized road paving and dismantling trailer according to claim 1, characterized in that, The heavy-duty mechanized road paving trailer also includes a hydraulic pick.

10. The heavy-duty mechanized road paving trailer according to claim 1, characterized in that, The chassis assembly mainly consists of a front frame assembly, a main frame assembly, a suspension system, a braking system, a reversing lock mechanism, and a wheel and axle assembly; the chassis assembly is equipped with a front axle steering device.

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