Parallel displacement device of mine carry-scraper

Abstract

The invention relates to the technical field of mining machinery, and discloses a mining carry-scraper parallel displacement device which comprises a vehicle body frame serving as a basic bearing structure of the whole device and used for installing and fixing other components. The left front horizontal telescopic supporting leg group is used for realizing horizontal displacement and angle adjustment of the left side of the front part of the vehicle body frame; the left rear horizontal telescopic supporting leg set is used for achieving horizontal displacement and angle adjustment of the left side of the rear portion of the vehicle body frame, and the right front horizontal telescopic supporting leg set is used for achieving horizontal displacement and angle adjustment of the right side of the front portion of the vehicle body frame. Through the unique design of the supporting leg group and the hydraulic control system, the maneuverability and the flexibility of the mine carry-scraper in a narrow curve and a limited space are obviously improved. And the left and right horizontal telescopic supporting leg groups work cooperatively, so that the vehicle body can perform large-range transverse movement and multi-angle adjustment, and collision between the tail of the vehicle body and a roadway wall during operation of a traditional carry-scraper is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of mining machinery, in particular to a parallel displacement device for a mining scraper. Background Art

[0002] Mining loaders, as key pieces of machinery in the mining industry, are primarily used for loading and transporting ore. They frequently operate in complex and confined spaces, such as underground tunnels. Traditional mining loaders typically consist of a body, bucket, power system, and travel system. They typically rely on friction between the wheels and the ground to achieve linear motion, such as forward and reverse movement, while steering relies heavily on wheel deflection. However, this traditional design exposes numerous limitations when operating in narrow curves and confined spaces.

[0003] Existing mining scrapers experience significant tail swing during steering, making them prone to rubbing against tunnel walls, resulting in scratches and component damage. This not only increases maintenance costs but can also disrupt mining operations due to frequent failures, reducing operational safety and accessibility. Furthermore, traditional scrapers have virtually zero lateral mobility during operation, making it difficult to flexibly adjust their position within uneven tunnels and unable to precisely align with ore piles or transport corridors for efficient operation. This limits their application and efficiency in complex working conditions.

[0004] To this end, those skilled in the art have proposed a parallel displacement device for a mining scraper to solve the above problems. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a parallel displacement device for a mining scraper, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: A parallel displacement device for a mining scraper, comprising: The vehicle body frame serves as the basic load-bearing structure of the entire device and is used to install and fix the remaining components; The left front horizontal telescopic outrigger assembly is used to achieve horizontal displacement and angle adjustment of the left front part of the vehicle frame; The left rear horizontal telescopic outrigger assembly is used to achieve horizontal displacement and angle adjustment of the left rear part of the vehicle frame; The right front horizontal telescopic outrigger assembly is used to achieve horizontal displacement and angle adjustment of the right front part of the vehicle frame; The right rear horizontal telescopic outrigger assembly is used to achieve horizontal displacement and angle adjustment of the right rear part of the vehicle frame; The hydraulic control system is used to control the movement of each outrigger group to achieve the displacement and angle adjustment of the scraper tail.

[0007] Through the above technical solution, by setting up the vehicle frame and the horizontal telescopic outrigger group and hydraulic control system around it, the scraper loader has the ability of flexible displacement and multi-angle adjustment, effectively avoiding the collision between the rear end of the vehicle body and the wall during tunnel operations, and improving its maneuverability, flexibility, safety and passability in narrow curves and confined spaces.

[0008] Preferably, the right front horizontal telescopic leg group includes a right front leg base, the right front leg base is hinged to the vehicle body frame, a right front telescopic cylinder is installed on the outer side of the right front leg base, and a right front angle adjustment cylinder is installed on the bottom of the right front leg base; The right rear horizontal telescopic support leg group includes a right rear support leg base, a right rear telescopic oil cylinder is installed on the outer side of the right rear support leg base, and a right rear angle adjustment oil cylinder is installed on the bottom of the right rear support leg base.

[0009] Preferably, the hydraulic control system includes a multi-way valve, a manual valve group and a pressure sensor. The control valve branch oil circuit of each leg group is connected in parallel to form an independent cylinder group. The independent control of the left and right leg groups is achieved through the operation of the manual valve to adjust the horizontal displacement and angle of the tail of the scraper.

[0010] Through the above technical solution, the multi-way valve, manual valve group and pressure sensor work together, and the oil circuit of each leg group control valve is connected in parallel to form an independent cylinder group, thereby realizing independent control of the left and right leg groups, and then accurately operating the horizontal displacement and angle adjustment of the scraper tail, thereby improving the maneuverability and flexibility of the equipment under complex working conditions.

[0011] Preferably, the left front horizontal telescopic leg group includes a left front leg base, the left front leg base is hinged to the vehicle body frame, a left front telescopic cylinder is installed on the outer side of the left front leg base, and a left front angle adjustment cylinder is installed on the bottom of the left front leg base; The left rear horizontal telescopic support leg group includes a left rear support leg base, which is hinged to the vehicle body frame. A left rear angle adjustment cylinder is installed at the bottom of the left rear support leg base, and a left rear telescopic cylinder is installed on the outer side of the left rear support leg base.

[0012] Through the above technical solution, the outrigger base is hinged to the vehicle body frame, and the telescopic cylinder and angle adjustment cylinder are used respectively to achieve horizontal displacement and angle adjustment of the front and rear parts of the left side of the vehicle body frame. The two work together to enhance the maneuverability and flexibility of the mining scraper in complex working conditions.

[0013] Preferably, the hydraulic system is provided with an overload protection valve, and the working pressure range is 16-32 MPa.

[0014] The above technical solution incorporates an overload protection valve and sets the operating pressure range to 16-32 MPa, ensuring the system operates within a safe pressure range. The overload protection valve automatically releases excess pressure when the pressure exceeds the set upper limit, preventing damage to hydraulic components and piping due to excessive pressure, effectively ensuring the reliability and safety of equipment operation.

[0015] Preferably, the piston rod ends of the left front telescopic oil cylinder, the left rear telescopic oil cylinder, the right front telescopic oil cylinder and the right rear telescopic oil cylinder are all provided with support feet for contacting the ground, and the bottoms of the support feet are provided with anti-slip pads.

[0016] Through the above technical solution, the anti-slip pad prevents the equipment from sliding by increasing the friction with the ground, ensuring operational stability. At the same time, the support feet can evenly distribute equipment pressure, preventing excessive compaction or sinking of the ground, and improving the adaptability of the equipment in complex terrain and operational safety.

[0017] Preferably, it further comprises a jacking leg group, which is hinged to the vehicle body frame through a jacking cylinder. The jacking cylinder can lift the tail of the scraper off the ground so that the telescopic cylinder can drive the tail to move laterally.

[0018] Through the above technical solution, the rear end of the scraper can be lifted off the ground by articulating the lifting cylinder with the vehicle frame, creating space for the telescopic cylinder to drive the rear end to move laterally, thereby achieving flexible displacement and precise adjustment of the equipment on complex terrain.

[0019] Preferably, there are two jacking leg groups, which are symmetrically arranged on both sides of the vehicle body frame, and the jacking cylinders of the two jacking leg groups are connected to the hydraulic control system to achieve synchronous jacking action.

[0020] The above technical solution ensures that the tail of the scraper is evenly lifted off the ground, creating a stable space for lateral movement and improving operation safety and reliability.

[0021] A method for using a parallel displacement device for a mining scraper comprises the following steps: Start the hydraulic control system and check whether the hydraulic oil level is within the normal range. Then start the hydraulic pump station to preheat and ensure the normal operation of the hydraulic system. Operate the manual valve of the jacking leg group to extend the jacking cylinder and lift the rear of the scraper 150-200mm off the ground to create space for subsequent horizontal displacement. According to the direction of the curve, operate the corresponding telescopic cylinder manual valve. If you need to move to the left, extend the right front telescopic cylinder and the right rear telescopic cylinder to push the body frame to the left. If you need to move to the right, extend the left front telescopic cylinder and the left rear telescopic cylinder to push the body frame to the right. Start the angle adjustment cylinder to adjust the swing angle of the outrigger group. The left front angle adjustment cylinder, left rear angle adjustment cylinder, right front angle adjustment cylinder and right rear angle adjustment cylinder can swing left and right as needed to adjust the angle of the vehicle frame in the horizontal direction, so that the scraper can pass through the curve smoothly. By controlling the telescopic cylinders and angle adjustment cylinders of each outrigger group, precise lateral movement and angle adjustment of the scraper tail can be achieved. During the movement, the pressure value of the outrigger group is monitored in real time to ensure that the working pressure of the hydraulic system is within the set range. Drive the scraper slowly through the bend. During driving, you can continue to fine-tune the movements of each outrigger group according to actual conditions. After passing the bend, operate the manual valves of each outrigger group to retract the jacking cylinder, telescopic cylinder and angle adjustment cylinder in sequence to restore the scraper to normal driving state.

[0022] Through the above technical solution, by operating the hydraulic control system and the cylinders of each leg group, the jacking, lateral movement and angle adjustment of the scraper tail can be achieved, ensuring that the equipment can operate flexibly and safely in narrow curves and complex spaces, and can return to normal driving state after operation.

[0023] The present invention provides a parallel displacement device for a mining scraper. It has the following beneficial effects: 1. This invention significantly improves the maneuverability and flexibility of mining scrapers in narrow curves and confined spaces through its unique outrigger design and hydraulic control system. The coordinated operation of the left and right horizontal telescopic outriggers enables extensive lateral movement and multi-angle adjustment of the vehicle body, effectively preventing the rear end of the vehicle from rubbing against the tunnel wall during traditional scraper operation. This significantly reduces the risk of equipment damage and improves operational safety and maneuverability.

[0024] 2. This invention utilizes an advanced hydraulic system and parallel oil circuit design, combined with independent manual valve operation, to overcome the motion limitations of traditional series oil circuits and achieve precise coordinated movement of multiple cylinders. The hydraulic system's integrated overload protection ensures operational stability and reliability. Furthermore, precise displacement and angle adjustment greatly facilitates driving, effectively reducing operator effort and improving operational efficiency and overall equipment performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the hydraulic system oil circuit of the present invention; Figure 2 Schematic diagram of the structure of the parallel displacement device of the present invention.

[0026] Among them, 1. Left front horizontal telescopic outrigger group; 1.1. Left front telescopic cylinder; 1.2. Left front angle adjustment cylinder; 1.3. Left front outrigger base; 2. Right front horizontal telescopic outrigger group; 2.1. Right front telescopic cylinder; 2.2. Right front angle adjustment cylinder; 2.3. Right front outrigger base; 3. Left rear horizontal telescopic outrigger group; 3.1 Left rear telescopic cylinder; 3.2. Left rear angle adjustment cylinder; 3.3. Left rear outrigger base; 4. Right rear horizontal telescopic outrigger group; 4.1. Right rear telescopic cylinder; 4.2. Right rear angle adjustment cylinder; 4.3. Right rear outrigger base; 5. Vehicle frame. DETAILED DESCRIPTION

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the present specification. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Please see the attached Figure 1 -Attached Figure 2 The embodiment of the present invention provides a parallel displacement device for a mining scraper, comprising: The vehicle body frame 5 serves as the basic bearing structure of the entire device and is used to install and fix the remaining components; The left front horizontal telescopic leg assembly 1 is used to achieve horizontal displacement and angle adjustment of the left front portion of the vehicle frame 5. It includes a left front leg base 1.3, which is hingedly connected to the vehicle frame 5. A left front telescopic cylinder 1.1 is mounted on the outside of the left front leg base 1.3, and a left front angle adjustment cylinder 1.2 is mounted on the bottom of the left front leg base 1.3. The piston rods of the left front telescopic cylinder 1.1, the left rear telescopic cylinder 3.1, the right front telescopic cylinder 2.1, and the right rear telescopic cylinder 4.1 are all equipped with support feet for ground contact, and the bottoms of these support feet are equipped with anti-slip pads.

[0029] Specifically, the vehicle frame 5 is the foundation of the entire device and is used to install and fix other components. The left front horizontal telescopic leg group 1 is hinged to the vehicle frame 5 through the left front leg base 1.3. The left front telescopic cylinder 1.1 on the outside of the left front leg base 1.3 is telescopic, driving the left front part of the vehicle frame 5 to move horizontally; the left front angle adjustment cylinder 1.2 at its bottom can adjust the angle of the leg on this side. The piston rod ends of the left front telescopic cylinder 1.1, the left rear telescopic cylinder 3.1, the right front telescopic cylinder 2.1 and the right rear telescopic cylinder 4.1 all have support feet, and the anti-slip pads at the bottom of the support feet can prevent the equipment from sliding and ensure stability. During operation, the hydraulic control system drives the cylinders to act in coordination to achieve displacement and angle adjustment of the vehicle frame 5.

[0030] The left rear horizontal telescopic leg group 3 is used to achieve horizontal displacement and angle adjustment of the left rear part of the vehicle body frame 5; the left rear horizontal telescopic leg group 3 includes a left rear leg base 3.3, which is hinged to the vehicle body frame 5, and a left rear angle adjustment cylinder 3.2 is installed at the bottom of the left rear leg base 3.3, and a left rear telescopic cylinder 3.1 is installed on the outer side of the left rear leg base 3.3.

[0031] Specifically, the left rear horizontal telescopic support leg group 3 is used as a whole to achieve horizontal displacement and angle adjustment of the left rear part of the vehicle frame 5, so that during the operation of the mining shovel loader, especially when facing narrow curves and complex spaces, the left rear part of the vehicle body can be flexibly changed in position and angle to ensure smooth passage of the equipment and reduce the risk of collision with the surrounding environment.

[0032] The left rear outrigger base 3.3 serves as the foundation for the left rear horizontal telescopic outrigger assembly 3. It is hinged to the vehicle frame 5, providing both connection and support. This provides a stable mounting base for the various actuators, such as the cylinders, of the left rear horizontal telescopic outrigger assembly 3. Its articulation also allows for a certain degree of angular variation, enabling angle adjustment in conjunction with the angle adjustment cylinder. The left rear angle adjustment cylinder 3.2, mounted at the bottom of the left rear outrigger base 3.3, adjusts the swing angle of the left rear horizontal telescopic outrigger assembly 3 through its own telescopic motion, thereby altering the angular relationship between the left rear portion of the vehicle frame 5 and the ground or other reference plane. This allows the mining shovel loader to adapt to laneways or work surfaces of varying orientations and slopes, achieving horizontal angle adjustment and ensuring the equipment's stability and maneuverability in complex terrain.

[0033] The right front horizontal telescopic leg group 2 is used to achieve horizontal displacement and angle adjustment of the right side of the front part of the vehicle body frame 5; the right front horizontal telescopic leg group 2 includes a right front leg base 2.3, which is hinged to the vehicle body frame 5, and a right front telescopic cylinder 2.1 is installed on the outer side of the right front leg base 2.3, and a right front angle adjustment cylinder is installed on the bottom of the right front leg base 2.3.

[0034] Specifically, the right front horizontal telescopic outrigger assembly 2 functions as a unit to horizontally displace and angularly adjust the right front portion of the vehicle frame 5, enabling the scraper to flexibly adjust its position and posture under complex working conditions, allowing it to smoothly navigate curves and other challenging terrain. The right front outrigger base 2, serving as the foundational support component of the right front horizontal telescopic outrigger assembly 2, is hinged to the vehicle frame 5, providing a mounting base for the other components of the outrigger assembly. Its articulation allows the outrigger assembly to swing within a certain range, enabling angle adjustment in conjunction with the angle adjustment cylinder.

[0035] The right rear horizontal telescopic leg group 4 is used to achieve horizontal displacement and angle adjustment of the right side of the rear part of the vehicle body frame 5; the right rear horizontal telescopic leg group 4 includes a right rear leg base 4.3, the outer side of the right rear leg base 4.3 is installed with a right rear telescopic cylinder 4.1, and the bottom of the right rear leg base 4.3 is installed with a right rear angle adjustment cylinder 4.2.

[0036] Specifically, the overall function of the right rear horizontal telescopic support leg group 4 is to realize the horizontal displacement and angle adjustment of the right rear part of the vehicle frame 5, so that the mining shovel loader can flexibly change the position and angle of the right rear part of the vehicle body in narrow curves and confined spaces, thereby improving the maneuverability and passability of the equipment and reducing the risk of collision with the surrounding environment.

[0037] The hydraulic control system controls the movement of each outrigger assembly, enabling displacement and angle adjustment of the scraper's rear end. It includes a multi-way valve, a manual valve assembly, and a pressure sensor. The control valve branches for each outrigger assembly are connected in parallel to form independent cylinder groups. Manual valves are used to independently control the left and right outrigger assemblies, adjusting the horizontal displacement and angle of the scraper's rear end. The hydraulic system is equipped with an overload protection valve and operates within a pressure range of 16-32 MPa.

[0038] Specifically, the hydraulic control system achieves precise control of each leg assembly in the parallel displacement mechanism of a mining scraper through the coordinated operation of components such as a multi-way valve, a manual valve block, and pressure sensors. The inclusion of an overload protection valve further enhances the system's safety and reliability. This system effectively enables horizontal displacement and angular adjustment of the scraper's rear end, enabling flexible operation within narrow curves and complex spaces, significantly improving operational safety and maneuverability.

[0039] The jacking leg assembly is also included. It is hinged to the vehicle frame 5 via a jacking cylinder. The jacking cylinder lifts the rear end of the scraper off the ground, allowing the telescopic cylinder to drive the rear end to move laterally. There are two jacking leg assemblies, symmetrically located on either side of the vehicle frame 5. The jacking cylinders of these two jacking leg assemblies are connected to a hydraulic control system to achieve synchronized lifting.

[0040] Specifically, when lateral movement or angular adjustment is required, the hydraulic control system extends the lifting cylinders, raising the rear of the scraper approximately 150-200mm off the ground. This height provides ample clearance for the telescopic cylinders to push the vehicle frame for lateral movement. The synchronized lifting action of the lifting legs ensures balance and stability during the lifting process, preventing equipment damage or operational safety accidents that could result from unbalanced lifting.

[0041] A method for using a parallel displacement device for a mining scraper comprises the following steps: Start the hydraulic control system and check whether the hydraulic oil level is within the normal range. Then start the hydraulic pump station to preheat and ensure the normal operation of the hydraulic system. Operate the manual valve of the jacking leg group to extend the jacking cylinder, lifting the rear of the scraper 150-200mm off the ground to create space for subsequent horizontal movement. Depending on the direction of the curve, operate the corresponding telescopic cylinder manual valve. If movement to the left is required, extend the right front telescopic cylinder 2.1 and the right rear telescopic cylinder 4.1 to push the vehicle frame 5 to the left. If movement to the right is required, extend the left front telescopic cylinder 1.1 and the left rear telescopic cylinder 3.1 to push the vehicle frame 5 to the right. Start the angle adjustment cylinders to adjust the swing angle of the outrigger group. The left front angle adjustment cylinder 1.2, the left rear angle adjustment cylinder 3.2, the right front angle adjustment cylinder 2.2, and the right rear angle adjustment cylinder 4.2 can swing left and right as needed to adjust the angle of the vehicle frame 5 in the horizontal direction, so that the scraper can smoothly pass through the curve; By controlling the telescopic cylinders and angle adjustment cylinders of each outrigger group, precise lateral movement and angle adjustment of the scraper tail can be achieved. During the movement, the pressure value of the outrigger group is monitored in real time to ensure that the working pressure of the hydraulic system is within the set range. Drive the scraper slowly through the bend. During driving, you can continue to fine-tune the movements of each outrigger group according to actual conditions. After passing the bend, operate the manual valves of each outrigger group to retract the jacking cylinder, telescopic cylinder and angle adjustment cylinder in sequence to restore the scraper to normal driving state.

[0042] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A parallel displacement device for a mining scraper, characterized in that: include: The vehicle body frame (5) serves as the basic bearing structure of the entire device and is used to install and fix the remaining components; A left front horizontal telescopic support leg assembly (1) for achieving horizontal displacement and angle adjustment of the left front portion of the vehicle body frame (5); A left rear horizontal telescopic support leg assembly (3) is used to achieve horizontal displacement and angle adjustment of the left rear portion of the vehicle body frame (5); A right front horizontal telescopic support leg assembly (2) for achieving horizontal displacement and angle adjustment of the right front side of the vehicle body frame (5); A right rear horizontal telescopic support leg assembly (4) is used to achieve horizontal displacement and angle adjustment of the right rear portion of the vehicle body frame (5); The hydraulic control system is used to control the movement of each outrigger group to achieve the displacement and angle adjustment of the scraper tail.

2. A parallel displacement device for a mining scraper according to claim 1, characterized in that: The right front horizontal telescopic support leg group (2) comprises a right front support leg base (2.3), the right front support leg base (2.3) is hinged to the vehicle body frame (5), a right front telescopic oil cylinder (2.1) is installed on the outer side of the right front support leg base (2.3), and a right front angle adjustment oil cylinder is installed on the bottom of the right front support leg base (2.3); The right rear horizontal telescopic support leg group (4) comprises a right rear support leg base (4.3), a right rear telescopic oil cylinder (4.1) is installed on the outer side of the right rear support leg base (4.3), and a right rear angle adjustment oil cylinder (4.2) is installed on the bottom of the right rear support leg base (4.3).

3. The parallel displacement device for a mining scraper according to claim 1, characterized in that: The hydraulic control system includes a multi-way valve, a manual valve group and a pressure sensor. The control valve branch oil circuit of each leg group is connected in parallel to form an independent cylinder group. The left and right leg groups are independently controlled by manual valve operation to adjust the horizontal displacement and angle of the scraper tail.

4. The parallel displacement device for a mining scraper according to claim 1, characterized in that: The left front horizontal telescopic support leg assembly (1) comprises a left front support leg base (1.3), the left front support leg base (1.3) is hinged to the vehicle body frame (5), a left front telescopic oil cylinder (1.1) is installed on the outer side of the left front support leg base (1.3), and a left front angle adjustment oil cylinder (1.2) is installed on the bottom of the left front support leg base (1.3); The left rear horizontal telescopic support leg group (3) comprises a left rear support leg base (3.3), the left rear support leg base (3.3) is hinged to the vehicle body frame (5), a left rear angle adjustment cylinder (3.2) is installed at the bottom of the left rear support leg base (3.3), and a left rear telescopic cylinder (3.1) is installed on the outer side of the left rear support leg base (3.3).

5. The parallel displacement device for a mining scraper according to claim 3, characterized in that: The hydraulic system is provided with an overload protection valve, and the working pressure range is 16-32MPa.

6. The parallel displacement device for a mining scraper according to claim 4, characterized in that: The piston rod ends of the left front telescopic oil cylinder (1.1), the left rear telescopic oil cylinder (3.1), the right front telescopic oil cylinder (2.1) and the right rear telescopic oil cylinder (4.1) are all provided with support feet for contacting the ground, and the bottoms of the support feet are provided with anti-slip pads.

7. The parallel displacement device for a mining scraper according to claim 1, characterized in that: It also includes a lifting leg group, which is hinged to the vehicle body frame (5) through a lifting cylinder. The lifting cylinder can lift the tail of the scraper off the ground so that the telescopic cylinder can drive the tail to move laterally.

8. The parallel displacement device for a mining scraper according to claim 7, characterized in that: There are two jacking leg groups, which are symmetrically arranged on both sides of the vehicle body frame (5), and the jacking oil cylinders of the two jacking leg groups are connected to the hydraulic control system to achieve synchronous jacking action.

9. A method for using a parallel displacement device for a mining scraper, according to the parallel displacement device for a mining scraper according to any one of claims 1 to 8, characterized in that: The following steps are involved: Start the hydraulic control system and check whether the hydraulic oil level is within the normal range. Then start the hydraulic pump station to preheat and ensure the normal operation of the hydraulic system. Operate the manual valve of the lifting leg group to extend the lifting cylinder and lift the rear of the scraper 150-200 mm off the ground to create space for subsequent horizontal displacement. According to the direction of the curve, operate the corresponding telescopic cylinder manual valve. If it is necessary to move to the left, extend the right front telescopic cylinder (2.1) and the right rear telescopic cylinder (4.1) to push the vehicle frame (5) to the left. If it is necessary to move to the right, extend the left front telescopic cylinder (1.1) and the left rear telescopic cylinder (3.1) to push the vehicle frame (5) to the right. The angle adjustment cylinder is activated to adjust the swing angle of the outrigger group. The left front angle adjustment cylinder (1.2), the left rear angle adjustment cylinder (3.2), the right front angle adjustment cylinder (2.2) and the right rear angle adjustment cylinder (4.2) can be swung left and right as needed to achieve horizontal angle adjustment of the vehicle frame (5), so that the scraper can smoothly pass through the curve. By controlling the telescopic cylinders and angle adjustment cylinders of each outrigger group, precise lateral movement and angle adjustment of the scraper tail can be achieved. During the movement, the pressure value of the outrigger group is monitored in real time to ensure that the working pressure of the hydraulic system is within the set range. Drive the scraper slowly through the bend. During driving, you can continue to fine-tune the movements of each outrigger group according to actual conditions. After passing the bend, operate the manual valves of each outrigger group to retract the jacking cylinder, telescopic cylinder and angle adjustment cylinder in sequence to restore the scraper to normal driving state.

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