A road roller

Abstract

The utility model belongs to road repair device technical field, and we propose a kind of pressure wheel type roadbed repair device, including tractor, rolling device, discharging device, storage tank and trowelling device;Tractor is provided with cab, and it has walking system, transmission system, steering system and hydraulic system, and tractor and repair device are controlled by cab;One end of tractor is provided with rolling device, and the other end of tractor is provided with discharging device and storage tank;Rolling device includes hydraulic adjusting mechanism, mounting bracket and rolling roller, and rolling roller is rotatably arranged in mounting bracket;The present scheme integrates tractor, rolling device, discharging device, storage tank and trowelling device, realizes the continuous operation of material storage-precise discharging-automatic trowelling-powerful rolling, does not need multiple equipment cooperation and manual intervention, significantly shortens process connection time.Transmission system supports stepless speed regulation, adapts to different operation rhythm, and compared with traditional segmented construction mode, repair efficiency is faster.

Description

Technical Field

[0001] This utility model relates to the technical field of road repair devices, specifically a roller-type roadbed repair device. Background Technology

[0002] As the core load-bearing structure of road engineering, the roadbed directly determines the stability and service life of the pavement. Under the influence of long-term traffic loads, natural environmental erosion (such as rainwater erosion and temperature changes), and construction-related problems, the roadbed is prone to subsidence, cracks, and surface loosening. If not repaired in time, it will lead to further damage to the pavement structure and cause traffic safety hazards.

[0003] In current roadbed repair operations, traditional techniques still have some shortcomings, such as: The fragmented construction process leads to inefficiency. Repair work often relies on multiple pieces of equipment working in sections, requiring separate completion of processes such as material transportation, spreading, smoothing, and compaction. Frequent equipment relocation and time-consuming process connections result in extremely low construction efficiency, especially in the repair of small-area defects, failing to meet the needs of rapid maintenance. Furthermore, some equipment requires manual assistance in leveling materials, increasing labor intensity and extending the construction cycle. Utility Model Content

[0004] The purpose of this invention is to provide a pressure roller type roadbed repair device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a roller-type roadbed repair device, comprising a tractor, a compaction device, a feeding device, a storage bin, and a smoothing device; the tractor is equipped with a cab and has a walking system, a transmission system, a steering system, and a hydraulic system, through which the tractor and the repair device are controlled; a compaction device is provided at one end of the tractor, and a feeding device and a storage bin are provided at the other end of the tractor; The compaction device includes a hydraulic adjustment mechanism, a mounting frame, and compaction rollers. The compaction rollers are rotatably mounted inside the mounting frame, which is mounted on the hydraulic adjustment mechanism. The storage bin is located on the side of the unloading device away from the tractor, and a material discharge port is provided between the storage bin and the unloading device. The feeding device includes a feeding box and a protective box. The feeding box has a feeding port on the side near the tractor. The feeding port is inclined downward. A conveyor belt is installed in the inner cavity of the feeding box. One end of the conveyor belt extends to the connection port and the other end extends to the feeding port. A feeding shaft is installed in the feeding port. The storage bin has an inverted trapezoidal funnel cavity inside. A screw propeller is installed at the bottom of the funnel cavity. The forward end of the screw propeller is connected to the connection port. A smoothing device for smoothing materials is installed between the feeding device and the tractor.

[0006] Preferably, baffles are provided on both sides of the mounting frame for protection on both sides of the compaction roller. A scraper is provided horizontally on the top of the mounting frame. The scraper contacts the roller surface downward to scrape off the adhering material on the compaction roller. The compaction roller is provided with outwardly protruding trapezoidal protrusions, which will have a better effect when repairing compacted roadbed. The hydraulic adjustment mechanism includes a lifting cylinder, a tilting cylinder, and a hydraulic pump. The lifting cylinder and the tilting cylinder adjust the distance and angle between the rolling roller and the road surface, and the hydraulic pump converts mechanical energy into hydraulic energy.

[0007] Preferably, the storage box and the feeding device adopt a separate structure, and the connection port is sealed with a sealing plate; there are two protective boxes, which are symmetrically distributed on both sides of the feeding box. The driving component of the feeding device is installed inside the protective box, and heat dissipation and ventilation holes are provided. The connection port and the discharge port are set in a downward slope. The conveyor belt is also set in a slope and is responsible for connecting the connection port and the discharge port. The material in the storage box is transported to the discharge port for discharge.

[0008] Preferably, the feeding shaft is equipped with spiral blades. The repair material is conveyed by the conveyor belt to the top of the feeding port and falls down. The feeding shaft uses the spiral blades to perform spiral cutting and discharge, and discharges the material from the feeding port onto the road surface. The spiral blades on the feeding shaft are distributed in two sections, and the two sections of spiral blades are inclined in opposite directions, so the material falling from above will continue to gather towards the middle. The feeding device is equipped with a conveyor drive motor and a feeding shaft drive motor, which are respectively connected to the conveyor belt and the feeding shaft.

[0009] Preferably, protective plates are symmetrically arranged on the outside of the protective box, and the protective plates on both sides isolate the area where the feeding device is located into a closed area.

[0010] Preferably, the smoothing device includes a mounting rod, a drive cylinder, and a smoothing plate, with the mounting rod fixed to the inside of two protective plates; A drive cylinder is vertically mounted at the end of the mounting rod, with the transmission end of the drive cylinder pointing downwards. The smearing plate is positioned between the bottoms of the two transmission ends. The two drive cylinders move synchronously to control the distance between the smearing plate and the road surface. When the smearing plate contacts the ground, it uses its own weight to smooth out any material that has fallen in front of it.

[0011] Preferably, the material is conveyed forward by the spiral drive of the screw propeller; the outer wall of the storage box is equipped with a propeller drive motor, and the propeller drive motor is connected to the screw propeller for transmission.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This solution integrates a tractor, compaction device, feeding device, storage bin, and leveling device into one unit, enabling a continuous operation process of material storage, precise feeding, automatic leveling, and high-pressure compaction. It eliminates the need for multiple devices and manual intervention, significantly reducing process connection time. The transmission system supports stepless speed regulation to adapt to different work rhythms, resulting in faster repair efficiency compared to traditional segmented construction methods.

[0013] The storage bin uses an inverted trapezoidal funnel cavity combined with a screw propeller to achieve stable material conveying; the feeding device uses a combination of inclined conveyor belt and reverse screw blades to gather materials towards the center and evenly discharge them, effectively avoiding local accumulation and blank areas, resulting in more uniform feeding. Side protective plates and a sealed connection structure prevent material splashing and environmental dust, ensuring environmental friendliness during construction.

[0014] The compaction rollers feature trapezoidal protrusions, significantly enhancing the embedding and reinforcement effect on the roadbed. The hydraulic adjustment mechanism precisely controls the roller height and angle via lifting and tilting cylinders, adapting to roadbed conditions with varying degrees of damage. The top scraper and side baffles on the rollers effectively remove debris from the wheel surface and provide protection, while the internal polyurethane buffer and shock-absorbing cavity prevents secondary damage to the roadbed. Attached Figure Description

[0015] Figure 1 This is the front view of the present utility model; Figure 2 This is a schematic diagram of the compaction device of this utility model; Figure 3 This is a cross-sectional view of the feeding device of this utility model; Figure 4 This is a top view of the storage box of this utility model; Figure 5 This is a schematic diagram of the smoothing device of this utility model.

[0016] In the picture: 1. Tractor; 2. Compactor, 2-1. Hydraulic adjustment mechanism, 2-2. Mounting frame, 2-3. Compactor rollers; 3. Feeding device, 3-1 Feeding box, 3-2 Protective box, 3-3 Protective plate, 3-4 Conveyor belt, 3-5 Feeding port, 3-6 Feeding shaft; 4. Storage bin, 4-1. Funnel cavity, 4-2. Screw propeller; 5. Smoothing device, 5-1. Mounting rod, 5-2. Drive cylinder, 5-3. Smoothing plate. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] Example: Please see Figure 1-5 The present invention provides the following technical solution: A roller-type roadbed repair device includes a tractor 1, a compaction device 2, a material feeding device 3, a material storage box 4, and a smoothing device 5; the tractor 1 is equipped with a driver's cab and has a walking system, a transmission system, a steering system, and a hydraulic system, and the operator controls the tractor 1 and the repair device through the driver's cab. One end of the tractor 1 is equipped with a compaction device 2. The compaction device 2 includes a hydraulic adjustment mechanism 2-1, a mounting frame 2-2, and a compaction roller 2-3. The compaction roller 2-3 is rotatably mounted inside the mounting frame 2-2. Baffles are provided on both sides of the mounting frame 2-2 for protection. A scraper is provided horizontally on the top of the mounting frame 2-2. The scraper contacts the wheel surface of the compaction roller 2-3 downwards to scrape off the attached material on the compaction roller 2-3. Mounting bracket 2-2 is mounted on hydraulic adjustment mechanism 2-1. Hydraulic adjustment mechanism 2-1 controls mounting bracket 2-2 to be away from or close to the road surface from rolling roller 2-3. The hydraulic adjustment mechanism 2-1 includes a lifting cylinder, a tilting cylinder, and a hydraulic pump. The lifting cylinder and the tilting cylinder adjust the distance and angle between the compaction roller 2-3 and the road surface. The hydraulic pump converts mechanical energy into hydraulic energy and is equipped with a safety valve to provide oil leakage protection when there is overpressure. The compaction roller 2-3 is equipped with outwardly protruding trapezoidal protrusions, which will have a better effect when repairing the compacted roadbed. The other end of the tractor 1 is equipped with a feeding device 3 and a storage box 4. The storage box 4 is located on the side of the feeding device 3 away from the tractor 1. The storage box 4 and the feeding device 3 adopt a separate structure. A material discharge connection port is provided between the storage box 4 and the feeding device 3, and the outside of the connection port is sealed with a sealing plate. The feeding device 3 includes a feeding box 3-1 and a protective box 3-2. There are two protective boxes 3-2, which are symmetrically distributed on both sides of the feeding box 3-1. The driving component of the feeding device 3 is installed inside the protective box 3-2, and a heat dissipation and ventilation port is provided. The material feeding box 3-1 has a feeding port 3-5 on the side near the tractor 1. The feeding port 3-5 is inclined downwards and is responsible for conveying the asphalt or materials used for repair downwards to the road surface. A conveyor belt 3-4 is installed in the inner cavity of the feeding box 3-1. One end of the conveyor belt 3-4 extends to the connection port and the other end extends to the feeding port 3-5 to transport the material in the storage box 4 to the feeding port 3-5 for discharge. The connection port and the discharge port 3-5 are set in a downward slope, and the conveyor belt 3-4 is also set in a slope and is responsible for connecting the connection port and the discharge port 3-5; A feeding shaft 3-6 is installed inside the feeding port 3-5. The feeding shaft 3-6 is equipped with spiral blades. The repair material is conveyed by the conveyor belt 3-4 to the top of the feeding port 3-5 and falls down. The feeding shaft 3-6 uses the spiral blades to perform spiral cutting and discharge, and discharges the material from the feeding port 3-5 to the road surface. The spiral blades can make the material discharge more uniform. The spiral blades on the feeding shaft 3-6 are distributed in two sections, and the spiral blades in the two sections are inclined in opposite directions, so that the material falling from above will continue to gather in the middle and fall down last, preventing the material from moving to the sides and accumulating continuously. The feeding device 3 is equipped with a conveyor drive motor and a feeding shaft drive motor, which are respectively connected to the conveyor belt 3-4 and the feeding shaft 3-6 for transmission. Protective plates 3-3 are symmetrically arranged on the outside of the protective box 3-2. The protective plates 3-3 on both sides isolate the area where the feeding device 3 is located into a closed area to prevent material from splashing. A smoothing device 5 is provided between the feeding device 3 and the tractor 1. The smoothing device 5 includes a mounting rod 5-1, a drive cylinder 5-2 and a smoothing plate 5-3. The mounting rod 5-1 is fixed to the inner side of the two protective plates 3-3. A drive cylinder 5-2 is vertically mounted at the end of the mounting rod 5-1. The transmission end of the drive cylinder 5-2 faces downward, and the smearing plate 5-3 is set between the bottom of the two transmission ends. The two drive cylinders 5-2 move synchronously to control the distance between the smearing plate 5-3 and the road surface. When the smearing plate 5-3 contacts the ground, it uses its own weight to smooth the material that has fallen in front, and the rolling roller 2-3 on the rear tractor 1 rolls the material evenly to achieve rapid repair. The storage bin 4 has an inner cavity with an inverted trapezoidal funnel cavity 4-1. A screw propeller 4-2 is installed at the bottom of the funnel cavity 4-1. The forward end of the screw propeller 4-2 is connected to the connection port. The material is conveyed forward by the screw propeller 4-2. The outer wall of the storage bin 4 is equipped with a propeller drive motor, and the propeller drive motor is connected to the screw propeller 4-2. The cab is equipped with a control terminal and an integrated display screen for operating parameters, showing in real time the material feed rate, compaction pressure, and travel speed. The transmission system adopts a hydraulic-mechanical composite transmission with a transmission efficiency of ≥90%, enabling stepless speed regulation from 0.5-5 km / h to meet the needs of different operating rhythms. All control systems in this solution utilize existing technology, and those skilled in the art can assemble and integrate the control system based on the content of this solution.

[0020] The compaction rollers 2-3 are made of high-strength alloy steel with a wheel surface hardness of HRC55-60. The surface of the protrusions is treated with a wear-resistant coating, and the wear amount is ≤0.5mm / 1000h. The compaction rollers 2-3 are equipped with a shock-absorbing cavity filled with polyurethane buffer material to reduce secondary damage to the roadbed during compaction. The storage bin 4 is welded from Q235B steel plate, and the inner wall is coated with anti-stick epoxy resin to prevent material from clumping and adhering; the funnel cavity 4-1 has a cone angle of 60°, and the bottom discharge port diameter is connected to the screw propeller 4-2. The screw propeller 4-2 is made of wear-resistant alloy steel, and the propulsion speed is adjustable from 0 to 0.5 m / s. The propeller drive motor has a power of 15 kW and adopts frequency conversion control to adjust the propulsion amount according to the material feeding requirements. The top of the storage box 4 is equipped with an openable dust cover, and an ultrasonic material level sensor is installed on the side to monitor the remaining material in real time and display it in the cab. It will automatically alarm when the material level is low. The protective plate 3-3 is made of transparent PC sheet. The heat dissipation and ventilation opening of the protective box 3-2 is equipped with a dustproof net and a rainproof cover. An axial flow fan is installed inside to ensure that the operating temperature of the drive motor is ≤60℃.

[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model, and no reference numerals in the claims should be considered as limiting the scope of the claims.

[0022] Working principle: The operator controls the entire device from the cab of the tractor 1. The control terminal integrates a parameter display screen to display key data such as material feed rate and compaction pressure in real time.

[0023] The transmission system adopts a hydraulic-mechanical composite transmission, supports stepless speed regulation from 0.5 to 5 km / h, provides stable power for each device, and has a transmission efficiency of ≥90%.

[0024] The storage bin 4 stores repair materials such as asphalt. The inner wall has an anti-stick coating to prevent the material from clumping. The cone-shaped design of the funnel cavity 4-1, together with the screw propeller 4-2, stably pushes the material to the connection port with the feeding device 3.

[0025] The screw propeller 4-2 is driven by a variable frequency motor, and the propulsion speed is adjustable from 0 to 0.5 m / s, allowing for precise control of the material conveying volume according to operational needs.

[0026] The material enters the conveyor belt 3-4 of the feeding device 3 through the connection port, and the inclined conveyor belt 3-4 transports the material to the feeding port 3-5.

[0027] The feeding shaft 3-6 inside the feeding port 3-5 uses reverse-distributed spiral blades to evenly discharge the material onto the road surface, and the undischarged material gathers in the middle and eventually falls off, preventing material accumulation. At the same time, the protective plates 3-3 on both sides prevent material from splashing.

[0028] The drive cylinder 5-2 of the smoothing device 5 controls the smoothing plate 5-3 to contact the road surface. Using the weight of the smoothing plate 5-3, the material that has just been discharged is quickly smoothed, laying a flat foundation for subsequent compaction.

[0029] The two drive cylinders 5-2 move synchronously to ensure that the smearing plate 5-3 is evenly attached to the road surface and to avoid uneven material distribution.

[0030] The compaction device 2 at one end of the tractor 1 controls the height and angle of the compaction rollers 2-3 through the hydraulic adjustment mechanism 2-1 to adapt to different roadbed repair needs.

[0031] The trapezoidal protrusions on the compaction rollers 2-3 enhance the compaction effect, while the high-strength alloy steel material and wear-resistant coating improve durability, and the internal shock-absorbing cavity reduces secondary damage to the roadbed.

[0032] The baffles on both sides and the scraper on top of the rolling rollers 2-3 serve to protect against and remove deposits from the roller surface, ensuring the quality of rolling.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A roller-type roadbed repair device, comprising a tractor (1), a compaction device (2), a material feeding device (3), a material storage box (4), and a smoothing device (5), characterized in that: The tractor (1) is equipped with a cab and has a walking system, transmission system, steering system and hydraulic system. The tractor (1) and the repair device are controlled through the cab. A crushing device (2) is installed at one end of the tractor (1), and a feeding device (3) and a storage box (4) are installed at the other end of the tractor (1). The compaction device (2) includes a hydraulic adjustment mechanism (2-1), a mounting frame (2-2), and a compaction roller (2-3). The compaction roller (2-3) is rotatably mounted inside the mounting frame (2-2), and the mounting frame (2-2) is mounted on the hydraulic adjustment mechanism (2-1). The storage box (4) is located on the side of the unloading device (3) away from the tractor (1), and a material discharge port is provided between the storage box (4) and the unloading device (3); The feeding device (3) includes a feeding box (3-1) and a protective box (3-2). The feeding box (3-1) has a feeding port (3-5) on the side near the tractor (1). The feeding port (3-5) is inclined downward. A conveyor belt (3-4) is installed in the inner cavity of the feeding box (3-1). One end of the conveyor belt (3-4) extends to the connection port, and the other end extends to the feeding port (3-5). A feeding shaft (3-6) is installed in the feeding port (3-5). The storage box (4) has a funnel cavity (4-1) with an inverted trapezoidal structure inside. A screw propeller (4-2) is installed at the bottom of the funnel cavity (4-1). The forward end of the screw propeller (4-2) is connected to the connection port. A smoothing device (5) for smoothing the material is installed between the feeding device (3) and the tractor (1).

2. The roadbed repair device using a roller-type pressure wheel according to claim 1, characterized in that: The mounting frame (2-2) is equipped with baffles on both sides, which are located on both sides of the compaction roller (2-3) for protection. A scraper is horizontally installed on the top of the mounting frame (2-2), which contacts the surface of the compaction roller (2-3) downwards to scrape off the attached material on the compaction roller (2-3). The compaction roller (2-3) is equipped with outwardly protruding trapezoidal protrusions, which will have a better effect when repairing the compacted roadbed. The hydraulic adjustment mechanism (2-1) includes a lifting cylinder, a tilting cylinder, and a hydraulic pump. The lifting cylinder and the tilting cylinder adjust the distance and angle between the rolling roller (2-3) and the road surface, and the hydraulic pump converts mechanical energy into hydraulic energy.

3. The roadbed repair device using a roller-type pressure roller according to claim 1, characterized in that: The storage box (4) and the feeding device (3) adopt a split structure, and the connection port is sealed with a sealing plate on the outside; there are two protective boxes (3-2), which are symmetrically distributed on both sides of the feeding box (3-1). The driving component of the feeding device (3) is installed in the protective box (3-2), and a heat dissipation ventilation port is provided. The connection port and the discharge port (3-5) are set in a downward inclination. The conveyor belt (3-4) is also set in an inclination and is responsible for connecting the connection port and the discharge port (3-5). The material in the storage box (4) is transported to the discharge port (3-5) for discharge.

4. The roadbed repair device using a roller-type pressure roller according to claim 3, characterized in that: The feeding shaft (3-6) is equipped with spiral blades. The repair material is conveyed by the conveyor belt (3-4) to fall above the feeding port (3-5). The feeding shaft (3-6) uses the spiral blades to perform spiral cutting and discharge, and discharges the material from the feeding port (3-5) onto the road surface. The spiral blades on the feeding shaft (3-6) are distributed in two sections, and the spiral blades in the two sections are inclined in opposite directions, so the material falling from above will continue to gather towards the middle. The feeding device (3) is equipped with a conveyor drive motor and a feeding shaft drive motor, which are respectively connected to the conveyor belt (3-4) and the feeding shaft (3-6).

5. The roadbed repair device using a roller-type pressure wheel according to claim 1, characterized in that: The protective box (3-2) is symmetrically provided with protective plates (3-3) on the outside. The protective plates (3-3) on both sides isolate the area where the feeding device (3) is located into a closed area.

6. The roadbed repair device using a roller-type pressure roller according to claim 1, characterized in that: The smoothing device (5) includes a mounting rod (5-1), a drive cylinder (5-2), and a smoothing plate (5-3). The mounting rod (5-1) is fixed to the inside of two protective plates (3-3). A drive cylinder (5-2) is vertically mounted at the end of the mounting rod (5-1). The transmission end of the drive cylinder (5-2) faces downward, and the smearing plate (5-3) is set between the bottom of the two transmission ends. The two drive cylinders (5-2) move synchronously to control the distance between the smearing plate (5-3) and the road surface. When the smearing plate (5-3) contacts the ground, it uses its own weight to smooth out the material that has fallen in front.

7. A roadbed repair device using a roller-type pressure roller according to claim 1, characterized in that: The material is conveyed forward by the spiral drive of the screw propeller (4-2); the outer wall of the storage box (4) is equipped with a propeller drive motor, and the propeller drive motor is connected to the screw propeller (4-2) for transmission.

Images