Telescopic arm hopper leveling oil cylinder for skid steer loader

Abstract

The utility model provides a telescopic arm hopper leveling oil cylinder for a skid steer loader, the front end of the leveling oil cylinder is arranged on a basic arm, the rear end of the leveling oil cylinder is arranged on a frame, the leveling oil cylinder comprises the frame, a big arm, the leveling oil cylinder, a big arm oil cylinder, a tipping bucket oil cylinder, a front extending arm and a hopper, the big arm is arranged above the frame and is a middle part for connecting the frame and the hopper, and the big arm is fixedly connected with the front extending arm. The hinged connection mode of all parts is scientific and reasonable, the large arm is fixedly connected with the front extending arm, and the leveling oil cylinder, the large arm oil cylinder and the tipping bucket oil cylinder are hinged to the corresponding parts respectively, so that force transmission is smoother, it is guaranteed that all the parts work cooperatively in the working process of equipment, the overall reliability and stability are improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of skid steer loader technology, and more specifically, to a telescopic boom bucket leveling cylinder for skid steer loaders. Background Technology

[0002] Currently, during the use of skid steer loaders, the telescopic boom bucket needs to be leveled. A level bucket facilitates material loading and unloading operations. For example, during unloading, a leveled bucket allows material to be discharged more smoothly, reducing unloading time and residual material, thereby improving work efficiency. If the bucket is not leveled, material is prone to spilling out of the bucket due to tilting during boom raising and lowering operations.

[0003] Currently, leveling valves are commonly used to level the hopper of telescopic booms, but this method has the following drawbacks: First, insufficient precision. The leveling valve itself has limited precision, and factors such as hydraulic system pressure fluctuations and mechanical component errors make it difficult to precisely level the hopper, leaving some tilt and failing to completely prevent material spillage. Second, slow response. Relying on the leveling valve to control the hydraulic oil for hopper leveling results in a delay in response when the boom's movement changes. In situations requiring rapid leveling, it cannot promptly bring the hopper to a horizontal position, affecting work efficiency and equipment stability. Third, low reliability. Leveling valves are prone to wear and jamming after long-term use. Valve core wear reduces sealing performance, affecting control precision; valve core jamming leads to leveling failure, increasing equipment maintenance costs and downtime. Fourth, high cost. High-quality leveling valves are expensive and require high-quality hydraulic oil, increasing equipment investment and maintenance costs. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a leveling cylinder for a telescopic boom hopper of a skid steer loader that overcomes or at least partially solves the above technical problems.

[0005] This utility model is implemented as follows:

[0006] This utility model provides a leveling cylinder for a telescopic boom bucket of a skid steer loader. The front end of the leveling cylinder is mounted on the main boom, and the rear end is mounted on the frame. The system includes a frame, a boom, a leveling cylinder, a boom cylinder, a dump cylinder, a reach arm, and a bucket. The boom is located above the frame and serves as the intermediate component connecting the frame and the bucket. The boom and the reach arm are fixedly connected. One end of the boom cylinder is hinged to the frame, and the other end is hinged to the bottom of the boom. The leveling cylinder is hinged to the frame and the rear of the boom via pins. One end of the dump cylinder is hinged to the rear of the bucket, and the other end is hinged to the rear of the reach arm. The bucket is located at the front end of the reach arm and is connected to the reach arm via a hinge.

[0007] In a preferred embodiment, the boom cylinder is a double-acting double-piston rod cylinder.

[0008] In a preferred embodiment, the leveling cylinder is a double-acting single-piston rod cylinder or a servo cylinder.

[0009] In a preferred embodiment, the tipping cylinder is a swing cylinder.

[0010] The skid steer loader telescopic boom bucket leveling cylinder provided by this utility model has the following advantages:

[0011] 1. The tipping cylinder of this utility model adopts a swing cylinder, which directly outputs rotational motion. By reasonably connecting with the hopper, the angle adjustment and leveling of the hopper can be achieved in a smaller space, reducing the complexity of the mechanical transmission structure, making the system more compact and saving space.

[0012] 2. The hinged connection method of each component of this utility model is scientific and reasonable. The boom and the forward extension are fixedly connected, and the leveling cylinder, boom cylinder and tipping cylinder are respectively hinged to the corresponding components, so that the force transmission is smoother, ensuring that each component works together during the operation of the equipment, improving the overall reliability and stability, and extending the service life of the equipment. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0014] Figure 1 This is an overall perspective view provided by an embodiment of the present utility model;

[0015] In the diagram: 1. Frame; 2. Boom; 3. Leveling cylinder; 4. Boom cylinder; 5. Bucket cylinder; 6. Hopper; 7. Extension boom. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0017] Reference Figure 1This utility model provides a technical solution: a leveling cylinder for a skid steer loader's telescopic boom bucket. The front end of the leveling cylinder is mounted on the basic boom, and the rear end is mounted on the frame. The system includes a frame 1, a boom 2, a leveling cylinder 3, a boom cylinder 4, a tipping cylinder 5, a reach arm 7, and a bucket 6. The boom 2 is located above the frame 1 and serves as the intermediate component connecting the frame 1 and the bucket 6. The boom 2 is fixedly connected to the reach arm. One end of the boom cylinder 4 is hinged to the frame 1, and the other end is hinged to the bottom of the boom 2. The leveling cylinder is hinged to the frame 1 and the rear of the boom 2 via pins. One end of the tipping cylinder 5 is hinged to the rear of the bucket 6, and the other end is hinged to the rear of the reach arm 7. The bucket 6 is located at the front end of the reach arm 7 and is connected to the reach arm 7 via a hinge.

[0018] In a preferred embodiment, the boom cylinder 4 is a double-acting double-piston rod cylinder.

[0019] In a preferred embodiment, the leveling cylinder 3 is a double-acting single-piston rod cylinder or a servo cylinder.

[0020] In a preferred embodiment, the tipping cylinder 5 is a swing cylinder.

[0021] Specifically, the working process or principle of the telescopic boom bucket leveling cylinder of this skid steer loader is as follows: During operation, when hydraulic oil is injected into the rodless chamber of the boom cylinder, the powerful hydraulic pressure pushes the piston rod outward, thereby forcefully lifting the boom and causing it to rotate upward around the hinge point with the frame, achieving a steady rise of the boom and raising the bucket to the required height. Conversely, when oil is injected into the rod chamber, the piston rod retracts, and the boom slowly descends under the combined action of its own weight and the cylinder's pulling force. During this process, the leveling cylinder is also constantly operating. The raising and lowering of the boom inevitably leads to a change in its angle, and the leveling cylinder reacts quickly, compensating for this angle change through its telescopic movement, ensuring that the bucket remains level. If a servo cylinder is used, its high-precision control performance allows for more accurate sensing of boom angle changes and real-time adjustment of the telescopic amount, achieving a more precise leveling effect.

[0022] During the unloading phase, the tipping cylinder swings, causing the bucket to tilt forward around the hinge point with the extension arm, allowing the material to be poured out smoothly. During loading, the tipping cylinder reverses its movement, returning the bucket to the appropriate loading angle. The cylinders work together to achieve boom lifting, bucket leveling, and tilting, meeting the needs of material loading and unloading under various working conditions, preventing material spillage, and greatly improving work efficiency.

Claims

1. A leveling cylinder for a skid steer loader's telescopic boom bucket, wherein the front end of the leveling cylinder is mounted on the basic boom and the rear end is mounted on the chassis, characterized in that; The system includes a frame, boom, leveling cylinder, boom cylinder, tipping cylinder, reach arm, and hopper. The boom is located above the frame and is the intermediate component connecting the frame and the hopper. The boom and reach arm are fixedly connected. One end of the boom cylinder is hinged to the frame, and the other end is hinged to the bottom of the boom. The leveling cylinder is hinged to the frame and the rear of the boom via pins. One end of the tipping cylinder is hinged to the rear of the hopper, and the other end is hinged to the rear of the reach arm. The hopper is located at the front end of the reach arm and is connected to the reach arm via a hinge.

2. The leveling cylinder for the telescopic boom bucket of a skid steer loader according to claim 1, characterized in that, The boom cylinder is a double-acting, double-piston rod cylinder.

3. The leveling cylinder for the telescopic boom bucket of a skid steer loader according to claim 1, characterized in that, The leveling cylinder is a double-acting single-piston rod cylinder or a servo cylinder.

4. The leveling cylinder for the telescopic boom bucket of a skid steer loader according to claim 1, characterized in that, The tipping cylinder is a swing cylinder.

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