Adjustable counterweight type rubber wheel road roller

Abstract

The utility model relates to the technical field of engineering construction, in particular to an adjustable counterweight type rubber-tired road roller capable of simulating the acting force of each structural layer when an aircraft walks under the load of tires, and the pressure of a rubber wheel acting on the structural layer is adjusted by adjusting the weight of a counterweight, so that the pressure required by each structural layer during load verification is adapted, and the working efficiency is improved. The adjustable counterweight type rubber wheel road roller is simple in structure and high in adjusting efficiency, the construction progress is accelerated, and the construction efficiency is improved, the adjustable counterweight type rubber wheel road roller comprises a frame, the frame is provided with a chassis and a rubber wheel, the chassis is provided with a counterweight cabin, the counterweight cabin is provided with a plurality of detachable counterweight blocks, and the pressure of the rubber wheel acting on the ground is adjusted by disassembling and assembling the counterweight blocks. The road roller has the advantages that the detachable balancing weights are arranged on the chassis, and the weight of the frame can be adjusted by increasing or decreasing the balancing weights, so that the pressure applied to the ground by the rubber wheels is adjusted, the pressure applied to the ground by the rubber wheels is adjustable, and the pressure requirement of each structural layer on the road roller when the bearing capacity is verified is met.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction technology, specifically to an adjustable counterweight rubber-tired roller. Background Technology

[0002] In land reclamation, sea sand is often used for filling. Airports, with their large land area and long runways, have high requirements for the uniformity of the foundation and the control of settlement variations. Sea sand becomes loose after moisture loss, requiring further compaction before laying the roadbed. This process also verifies the presence of weak soil in the foundation and treats it, thereby improving the foundation's bearing capacity and reducing uneven settlement. Currently, most verification methods use simulated aircraft tire loads to test the forces acting on each structural layer. This method requires rubber-tired rollers. Since the required pressure varies for each layer, specifically: 600 kPa for compaction of the crushed stone subbase and 1100 kPa for the crushed stone base course, a 30-ton rubber-tired roller is needed for the crushed stone subbase and a 50-ton rubber-tired roller for the crushed stone base course. An excessively heavy roller may cause surface particle breakage, while an insufficiently heavy roller will not meet the compaction requirements. Existing road rollers adjust the pressure acting on each structural layer by regulating tire pressure (i.e., inflating and deflating the tires). However, the pressure difference required between different structural layers is relatively large, limiting the adjustment range of this method. Furthermore, the pressure required to verify the load-bearing capacity of each structural layer for other pavement structural layers is different from the pressure mentioned above. Summary of the Invention

[0003] The purpose of this invention is to provide an adjustable counterweight rubber-tired roller that can simulate the forces acting on various structural layers when traveling under aircraft tire load. By adjusting the weight of the counterweight, the pressure of the rubber-tired roller acting on the structural layers can be adjusted, thereby adapting to the pressure required for load verification of each structural layer. The adjustment efficiency is high, which helps to speed up the construction process and improve construction efficiency.

[0004] The technical solution adopted in this utility model includes:

[0005] The key features of an adjustable counterweight rubber-tired roller are: a frame, a chassis and rubber tires, a counterweight chamber, and multiple detachable counterweight blocks, which are used to adjust the pressure of the rubber tires on the ground by removing and installing the counterweight blocks.

[0006] The rubber wheels are disposed in the middle of the chassis along the front-rear direction, and there are multiple rubber wheels, which are arranged along the left-right direction of the chassis.

[0007] The chassis is equipped with multiple liftable outriggers, which are located on the front and rear sides of the rubber tire. The outriggers are lowered to support the chassis and raised to allow the rubber tire to contact the ground when the roller is moving.

[0008] The chassis is provided with four counterweight compartments, which are arranged at intervals along the front, back, left, and right sides. Each counterweight compartment is provided with multiple detachable counterweight blocks.

[0009] The maximum weight of the counterweight block in each of the counterweight compartments is 10t, and the unloaded weight of the frame is 10t, so the weight adjustment range of the frame is from 10t to 50t.

[0010] Each of the aforementioned counterweights weighs 2t or 2.5t, and the weight of any one of the aforementioned counterweights is equal to the weight of the other of the aforementioned counterweights.

[0011] It also includes a loader for towing the chassis, the front end of the chassis is provided with a towing component, and the loader and the chassis are detachably connected through the towing component.

[0012] The loader is equipped with a GPS positioning system to collect the driving trajectory of the road roller.

[0013] The advantages of this utility model are: 1. A detachable counterweight is set on the chassis, which can adjust the weight of the frame by adding or removing the counterweight, thereby adjusting the pressure of the rubber wheel on the ground, so that the pressure applied to the ground is adjustable, thus meeting the pressure requirements of the road roller for the load-bearing capacity verification of each structural layer.

[0014] 2. The equipment has a simple structure and is easy to operate. Under full load, the frame weighs up to 50t. With four rubber tires, each tire can bear a load of 12.5t. It can simulate the force of each structural layer when an aircraft tire is under load, identify and treat any weak soil in the foundation of the land reclamation, thereby improving the bearing capacity of the foundation and reducing the uneven settlement of the land reclamation airport.

[0015] 3. The weight of the road roller can be adjusted by counterweights, with an adjustable range of 10t to 50t, making it suitable for various structural layers and achieving multiple uses in one machine.

[0016] 4. Integrates GPS for high-precision positioning of the road roller's attitude, and collects the road roller's travel trajectory in real time to avoid areas with insufficient compaction and improve construction quality. Attached Figure Description

[0017] Figure 1 This is a side view of the present invention.

[0018] Figure 2 This is a top view of the present invention.

[0019] Figure 3 This is an axle side view of the roller frame of this utility model.

[0020] Figure 4 This is an isometric view of the counterweight block of this utility model.

[0021] Among them: 1-loader, 2-traction hook, 3-counterweight compartment, 4-counterweight block, 5-rubber tire, 6-chassis, 7-guardrail, 8-wheel guard plate, 9-outrigger, 10-ground, 11-pin, 12-GPS positioning system, 13-wheel stop. Detailed Implementation

[0022] The present invention will now be described in detail with reference to the views. The listed embodiments will enable those skilled in the art to better understand the present invention, but will not limit the invention in any way.

[0023] like Figures 1 to 4 As shown, this utility model is an adjustable counterweight rubber-tired roller, including a loader 1 and a chassis. The loader 1 and the chassis are connected by a traction component, and the loader 1 is used to tow the chassis. In this embodiment, the loader is an LW700KN wheel loader. In other embodiments, the loader can be other models, but it should be able to tow the chassis fully loaded with 50t in this embodiment.

[0024] The frame includes a towing hook 2, a counterweight compartment 3, a counterweight block 4, rubber tires 5, a chassis 6, guardrails 7, rubber tire guard plates 8, outriggers 9, pins 11, and wheel stops 13. The loader 1 is equipped with a GPS positioning system 12, specifically located on the roof of the loader 1. This system is used for high-precision positioning of the roller's attitude, real-time acquisition of the roller's travel trajectory, and, by fitting the construction drawings, avoidance of under-compacted or missed areas. The control method of using the GPS positioning system 12 to acquire the target vehicle's travel trajectory in real time and fit it to the construction drawings is existing technology. This invention applies it to a roller to acquire the roller's real-time travel trajectory.

[0025] The chassis 6 has four counterweight chambers 3, which are arranged at intervals along the front, rear, left, and right sides. Each counterweight chamber 3 has multiple detachable counterweight blocks 4. The pressure exerted on the ground by the rubber wheels 5 is adjusted by assembling and disassembling the counterweight blocks 4. In this embodiment, the weight of each counterweight block 4 is 2.5t, and the weight of any counterweight block 4 is equal to the weight of the other counterweight blocks 4, that is, the mass of each counterweight block 4 is equal, which facilitates the adjustment of the frame weight. Each counterweight chamber can hold a maximum of four counterweight blocks 4, so the maximum weight of each counterweight chamber is 10t, and the unloaded weight of the frame is 10t, thus the weight adjustment range of the frame is 10t to 50t. In other embodiments, the weight of each counterweight block 4 can also be set to 2t, and the number of counterweight blocks 4 in each counterweight chamber 3 can be five or other numbers, thereby adjusting the pressure exerted on the ground by the rubber wheels according to the different structural layer requirements of different ground surfaces, so as to adapt to the pressure required by different structural layers of different ground surfaces.

[0026] The guardrail 7 and the rubber wheel guard plate 8 are installed on the chassis 6 and located at the edge of the counterweight compartment 3 for the protection of personnel during operation.

[0027] The rubber wheels 5 are arranged in the middle of the chassis 6 along the front-rear direction, and there are multiple rubber wheels 5, which are arranged along the left-right direction of the chassis. In this embodiment, there are four rubber wheels 5, and when the frame is fully loaded, the maximum pressure exerted by each rubber wheel on the ground is 12.5t. In other embodiments, the number of rubber wheels 5 can be different, such as two or six, thereby changing the pressure exerted by the rubber wheels on the ground accordingly.

[0028] Four rubber wheels 5 are arranged side by side in the middle of the chassis 6, which can form a parallel force on the ground that is perpendicular to the direction of travel, making it easy to control the pressure.

[0029] To ensure the stability of the chassis when not in motion, the chassis 6 is equipped with multiple liftable outriggers 9. The outriggers 9 are located on the front and rear sides of the rubber-tired rollers 5. The outriggers 9 are lowered to support the chassis 6 and raised to allow the rubber-tired rollers 5 to contact the road surface when the roller is in motion. The wheel stops 13 are movable and can prevent the rubber-tired rollers 5 from rolling when the roller is stopped. They work in conjunction with the outriggers 9 to improve the stability of the chassis.

[0030] The front end of the chassis 6 is provided with a traction component. The loader and the frame are detachably connected through the traction component. In this embodiment, the traction component is the traction hook 2. After the loader and the frame are connected, the pin 11 is inserted and fixed to prevent it from falling off.

[0031] The working process of this utility model includes: In standby mode, using high-strength pins to connect the LW700KN wheel loader to the chassis. After connection, the pin 11 must be fixed to prevent it from falling off and to ensure a reliable connection between the loader and the chassis. A crane is used to lift the counterweight block 4 into the counterweight compartment 3. The lifting sequence is as follows: 1) Add one 2.5t counterweight block 4 to the left front counterweight compartment 3; 2) Add one 2.5t counterweight block 4 to the right rear counterweight compartment 3; 3) Add one 2.5t counterweight block 4 to the right front counterweight compartment 3; 4) Add one 2.5t counterweight block to the left rear counterweight compartment 3; 5) Repeat the above steps until the counterweight block 4 is evenly distributed in all counterweight compartments 3, so that the load on each tire reaches 12.5 tons. Switching the roller to operating mode: Use the LW700KN wheel loader to slightly raise the towing hook 2 so that the front outriggers are no longer under load, then lift and secure the front outriggers; use the LW700KN wheel loader to lower the towing hook 2 until the rear outriggers are no longer under load, then lift and secure the rear outriggers; the towing operation of the adjustable counterweight rubber-tired roller in this embodiment is the same as that of a conventional loader; if you need to switch the roller back to standby mode, follow the reverse order of the above steps.

[0032] When installing counterweight 4, it is not limited to installing all counterweight 4 as described above. The number of counterweight 4 can be adjusted according to the requirements of each structural layer of different road surfaces. For example, when performing verification compaction on a crushed stone subbase, the number of counterweights is adjusted to make the total weight of the frame 30t; when performing verification compaction on a crushed stone base course, the number of counterweights is adjusted to make the total weight of the frame 50t.

[0033] The remaining undescribed parts are the same as those in the prior art.

Claims

1. An adjustable counterweight rubber-tired roller, characterized in that: The vehicle includes a frame, which has a chassis and rubber wheels. The chassis has a counterweight compartment with multiple detachable counterweight blocks. The pressure exerted by the rubber wheels on the ground can be adjusted by removing and installing the counterweight blocks.

2. The adjustable counterweight rubber-tired roller according to claim 1, characterized in that: The rubber wheels are disposed in the middle of the chassis along the front-rear direction, and there are multiple rubber wheels, which are arranged along the left-right direction of the chassis.

3. The adjustable counterweight rubber-tired roller according to claim 2, characterized in that: The chassis is equipped with multiple liftable outriggers, which are located on the front and rear sides of the rubber tire. The outriggers are lowered to support the chassis and raised to allow the rubber tire to contact the ground when the roller is moving.

4. The adjustable counterweight rubber-tired roller according to claim 1, characterized in that: The chassis is provided with four counterweight compartments, which are arranged at intervals along the front, back, left, and right sides. Each counterweight compartment is provided with multiple detachable counterweight blocks.

5. The adjustable counterweight rubber-tired roller according to claim 4, characterized in that: The maximum weight of the counterweight block in each of the counterweight compartments is 10t, and the unloaded weight of the frame is 10t, so the weight adjustment range of the frame is from 10t to 50t.

6. The adjustable counterweight rubber-tired roller of claim 5 wherein: Each of the counterweights weighs 2t or 2.5t, and the weight of any one of the counterweights is equal to the weight of the other counterweights.

7. The adjustable counterweight rubber-tired roller according to claim 1, characterized in that: It also includes a loader for towing the chassis, the front end of the chassis is provided with a towing component, and the loader and the chassis are detachably connected through the towing component.

8. The adjustable counterweight rubber-tired roller according to claim 7, characterized in that: The loader is equipped with a GPS module for collecting the travel trajectory of the road roller.

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