Front wheel steering cylinder guard and grader

Abstract

This invention provides a front wheel steering cylinder protection device and a grader thereof. The front wheel steering cylinder protection device includes a protective plate; the protective plate is installed directly below the steering cylinder used to drive the front wheels of the grader; the vertical projection of the piston rod of the steering cylinder when retracted or extended is completely covered by the protective plate. This invention, by using a protective plate directly below the steering cylinder, completely covers the vertical projection range of the cylinder piston rod during extension and retraction, effectively blocking direct impacts from raised areas of the ground and foreign objects splashed during construction. This significantly reduces the risk of deformation, scratches, or seal failure of the cylinder due to external impacts, extending the cylinder's service life.

Description

Technical Field

[0001] This utility model relates to the field of grader technology, specifically a front wheel steering cylinder protection device and a grader thereof. Background Technology

[0002] In the overall structure of a motor grader, the front wheel steering system is one of the key components ensuring its flexible handling and precise operation. Currently, many motor graders use a hydraulic cylinder drive system for their front wheel steering, which uses the extension and retraction of hydraulic cylinders to drive the front wheels and achieve steering. This drive method has advantages such as relatively simple structure, large steering torque, and relatively rapid operation response, and to a certain extent meets the steering needs of motor graders under different working conditions.

[0003] However, graders often operate in extremely harsh environments. In actual construction, graders frequently need to work in various complex terrain conditions, including areas with numerous uplifted surfaces. These uplifted surfaces can directly impact the hydraulic cylinders, causing damage.

[0004] In addition, the construction site contains a large amount of upward-splashing debris, such as gravel, clods of earth, and metal fragments. During grader operation, these debris are propelled at high speeds by factors such as intense friction between the blade and the ground, disturbance from other construction equipment, and natural wind. The hydraulic cylinders are typically exposed to the grader's external working environment and lack effective protective measures; therefore, the splashed debris can easily directly impact the cylinder surface, causing damage.

[0005] Therefore, developing a technical solution that can effectively protect the steering cylinder of the front wheel of a grader and reduce its risk of damage in harsh working environments has important practical significance and economic value. Utility Model Content

[0006] To address the technical problems in the background art, this utility model discloses a front wheel steering cylinder protection device and its grader.

[0007] This utility model provides a front wheel steering cylinder protection device, including a protective plate;

[0008] The guard plate is installed directly below the steering cylinder that drives the front wheels of the grader.

[0009] The vertical projection of the piston rod of the steering cylinder when it retracts or extends is covered by a protective plate.

[0010] Furthermore, the protective plate is arranged at an angle, with its high end located away from the front wheel and its low end located close to the front wheel.

[0011] Furthermore, the part of the protective plate furthest from the front wheel is fixedly connected to the frame of the grader, while the part near the front wheel is suspended in the air.

[0012] Furthermore, the protective plate includes a main board, with a fixing plate vertically connected to the end of the main board away from the front wheel; the fixing plate is fixedly connected to the frame of the grader.

[0013] Furthermore, a reinforcing plate connects the motherboard and the mounting plate.

[0014] Furthermore, the portion of the motherboard near the front wheel has a tapered structure.

[0015] This utility model also provides a grader, including a front wheel steering cylinder protection device.

[0016] The beneficial effects of this utility model are: by setting a protective plate directly below the steering cylinder, this utility model can completely cover the vertical projection range of the cylinder piston rod when it extends and retracts, effectively blocking direct impact from ground protrusions and foreign objects splashed during construction, significantly reducing the risk of cylinder deformation, scratches or seal failure caused by external impact, and extending the service life of the cylinder. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Figure 1 This is a top view of the installation structure of the protective plate in this utility model;

[0019] Figure 2 This is a front view of the installation structure of the protective plate in this utility model;

[0020] Figure 3 This is a structural diagram of the protective plate;

[0021] Figure 4 This is a structural diagram of the protective plate, and its structure is similar to... Figure 3 The protective panels in the middle are symmetrical;

[0022] In the diagram: 1. Protective plate; 2. Front wheel; 3. Steering cylinder; 11. Main board; 12. Fixing plate; 13. Reinforcing plate. Detailed Implementation

[0023] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0024] Example 1:

[0025] like Figure 1 and Figure 2As shown, this utility model discloses a front wheel steering cylinder protection device, including a protective plate 1, which is installed directly below the steering cylinder 3 used to drive the front wheel 2 of a grader. Since there are two steering cylinders 3 arranged symmetrically, there are also two protective plates 1, with symmetrical structures.

[0026] The protective plate 1 includes the main plate 11, and the vertical projection of the piston rod of the steering cylinder 3 when it retracts or extends is covered by the protective plate 1.

[0027] By placing the protective plate 1 directly below the steering cylinder 3, the vertical projection range of the piston rod of the steering cylinder 3 during extension and retraction is completely covered. This effectively blocks direct impacts from ground protrusions and foreign objects splashed during construction, significantly reducing the risk of deformation, scratches, or seal failure of the steering cylinder 3 due to external impacts, and extending the service life of the steering cylinder 3.

[0028] A fixing plate 12 is vertically connected to the end of the main board 11 away from the front wheel 2; bolts pass through the fixing plate 12 and are fixedly connected to the frame of the grader, so that the protective plate 1 can be removed, making it easy to disassemble and maintain.

[0029] The part of the mainboard 11 near the front wheel 2 is suspended. The advantages of this setting are: 1. It reduces the risk of interference with complex terrain and ensures the reliability of the device under uneven working conditions; 2. The suspended end of the mainboard 11 is elastic and can act as a buffer when impacted by foreign objects, so as not to damage it; 3. The reason why the suspended end of the mainboard 11 is located near the front wheel 2 is that the splashed foreign objects are mainly caused by the rolling of the front wheel 2. Therefore, the splashed foreign objects will be concentrated at the front wheel 2, which can further improve the protection effect.

[0030] The protective plate 1 is arranged at an angle, with its high end located away from the front wheel 2 and its low end located close to the front wheel 2. The advantages of this arrangement are: 1. This angled structure allows foreign objects impacting the protective plate 1 to slide quickly down the inclined surface, preventing accumulation. During continuous operation of the grader, foreign objects are constantly splashed; the angled protective plate 1 can promptly expel these objects, reducing the impact force on the plate itself while ensuring continuous and effective protection of the hydraulic cylinder. 2. The angled arrangement of the protective plate 1 increases its contact area and angle adaptability to potential impact directions. When foreign objects fly from different directions, the angled protective plate 1 can better disperse the impact force, effectively dispersing and absorbing the impact energy, further improving the protection of the hydraulic cylinder.

[0031] To improve the structural strength of protective plate 1, such as Figure 3 and Figure 4 As shown, a reinforcing plate 13 is also connected between the motherboard 11 and the fixing plate 12.

[0032] like Figure 3and Figure 4 As shown, the portion of the main board 11 near the front wheel 2 has a tapered structure, which in this embodiment is a right-angled trapezoid. The tapered structure allows the protective plate 1 to minimize its occupation of surrounding space while meeting the protection requirements for the hydraulic cylinder, avoiding collisions or interference with other components, and improving the adaptability of the protective device on the grader and the space utilization rate.

[0033] Example 2:

[0034] This utility model also discloses a grader, including the front wheel steering cylinder protection device shown in Embodiment 1. With this design, the steering cylinder 3 that drives the front wheels 2 is less prone to damage, thus extending the service life of the grader.

[0035] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A front wheel steering cylinder protection device, characterized in that: Including protective panels (1); The protective plate (1) is installed directly below the steering cylinder (3) used to drive the front wheel (2) of the grader to turn; The vertical projection of the piston rod of the steering cylinder (3) when it retracts or extends is covered by the protective plate (1); The protective plate (1) is arranged at an angle, with its high end located away from the front wheel (2) and its low end located close to the front wheel (2); The part of the protective plate (1) away from the front wheel (2) is fixedly connected to the frame of the grader, while the part near the front wheel (2) is suspended in the air; The protective plate (1) includes a main plate (11), and a fixing plate (12) is vertically connected to one end of the main plate (11) away from the front wheel (2). The fixing plate (12) is fixedly connected to the frame of the grader; A reinforcing plate (13) is also connected between the main board (11) and the fixing plate (12).

2. The front wheel steering cylinder protection device according to claim 1, characterized in that: The portion of the mainboard (11) near the front wheel (2) has a tapered structure.

3. A grader, characterized in that: Includes the front wheel steering cylinder protection device as described in any one of claims 1-2.

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