Hydraulic chassis of crane

Abstract

The utility model discloses a crane hydraulic chassis which comprises a chassis frame, a first transverse supporting beam, a second transverse supporting beam and a third transverse supporting beam are fixedly installed at the bottom of the chassis frame, and sliding rods are installed among the first transverse supporting beam, the second transverse supporting beam and the third transverse supporting beam. A first sliding plate and a second sliding plate are installed on the sliding rods, the two ends of the first sliding plate and the two ends of the second sliding plate are slidably connected with the sliding rods on the two sides correspondingly, hydraulic supporting arms are movably installed on the two sides of the first transverse supporting beam and the two sides of the second transverse supporting beam correspondingly, and hydraulic cylinders are fixedly installed at one ends of the hydraulic supporting arms. The overall structural strength of the hydraulic chassis is enhanced, the hydraulic chassis is more stable and can bear larger weight and pressure, meanwhile, the hydraulic supporting arms can be conveniently unfolded, the structure is compact, operation is easy and convenient, and the working efficiency of the crane is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of crane chassis technology, specifically a hydraulic crane chassis. Background Technology

[0002] The hydraulic chassis of a crane is an important component of a crane. The chassis frame is the basic structure of the chassis, used to support the various parts of the crane. It is usually made of high-strength steel and has sufficient strength and rigidity to withstand various loads during the operation and travel of the crane. When not in use, the hydraulic support arms of the crane are stored inside the chassis frame. When in use, the operators need to rotate them out of the hydraulic chassis one by one. This is not only cumbersome to operate, but also inefficient. Utility Model Content

[0003] The purpose of this utility model is to provide a solution to the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a crane hydraulic chassis, including a chassis frame, with a first transverse support beam, a second transverse support beam, and a third transverse support beam fixedly installed at the bottom of the chassis frame. A sliding rod is installed between the first transverse support beam, the second transverse support beam, and the third transverse support beam. A first sliding plate and a second sliding plate are installed on the sliding rod. The two ends of the first sliding plate and the second sliding plate are slidably connected to the sliding rods on both sides, respectively. Hydraulic support arms are movably installed on both sides of the first transverse support beam and the second transverse support beam. A hydraulic cylinder is fixedly installed at one end of each hydraulic support arm. One side of each hydraulic support arm is connected to the first sliding plate and the second sliding plate via a connecting rod.

[0005] Preferably, the first transverse support beam, the second transverse support beam, and the third transverse support beam are arranged parallel to each other.

[0006] Preferably, the sliding rod is provided in two sets, and the two ends of the sliding rod are fixedly connected to the first transverse support beam and the third transverse support beam respectively, and the second transverse support beam is fixedly installed in the middle position of the sliding rod.

[0007] Preferably, the first sliding plate is located between the first transverse support beam and the second transverse support beam, and the second sliding plate is located between the second transverse support beam and the third transverse support beam.

[0008] Preferably, both sides of the first and second sliding plates are movably connected to connecting rods, and one end of each connecting rod is movably connected to a hydraulic support arm via a pin.

[0009] Preferably, an adjusting screw is installed at the middle position of the third transverse support beam. The adjusting screw is rotatably connected to the third transverse support beam through a bearing, and the upper part of the adjusting screw is threadedly connected to the first sliding plate and the second sliding plate, respectively.

[0010] Preferably, the second transverse support beam is provided with a mounting hole for accommodating an adjusting screw, and a handwheel is fixedly provided at the bottom of the adjusting screw.

[0011] Preferably, both sides of the chassis frame are provided with storage slots for accommodating hydraulic cylinders, and a support block is fixedly provided at the bottom of the chassis frame, with the hydraulic support arm located below the support block.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model enhances the overall structural strength of the hydraulic chassis by setting up a first transverse support beam, a second transverse support beam, and a third transverse support beam, making it more stable and able to withstand greater weight and pressure. The cooperative use of the sliding rod, the first sliding plate, and the second sliding plate allows the hydraulic support arm to be easily deployed. It is not only compact in structure but also easy to operate, greatly improving the working efficiency of the crane.

[0014] 3. The adjusting screw of this utility model can easily adjust the position of the first sliding plate and the second sliding plate, thereby adjusting the angle of the hydraulic support arm and improving the operation flexibility and stability of the crane. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model from below;

[0016] Figure 2 This is a partial structural diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the side structure of the chassis frame of this utility model.

[0018] In the diagram: 1. Chassis frame; 2. First transverse support beam; 3. Second transverse support beam; 4. Third transverse support beam; 5. Sliding rod; 6. First sliding plate; 7. Second sliding plate; 8. Hydraulic support arm; 9. Hydraulic cylinder; 10. Connecting rod; 11. Adjusting screw; 12. Storage slot; 13. Support block; 14. Handwheel. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3 This utility model provides a hydraulic chassis technical solution for a crane: it includes a chassis frame 1, on the bottom of which a first transverse support beam 2, a second transverse support beam 3, and a third transverse support beam 4 are fixedly installed. A sliding rod 5 is installed between the first transverse support beam 2, the second transverse support beam 3, and the third transverse support beam 4. A first sliding plate 6 and a second sliding plate 7 are installed on the sliding rod 5. The two ends of the first sliding plate 6 and the second sliding plate 7 are slidably connected to the sliding rod 5 on both sides. Hydraulic support arms 8 are movably installed on both sides of the first transverse support beam 2 and the second transverse support beam 3. A hydraulic cylinder 9 is fixedly installed on one end of the hydraulic support arm 8. One side of the hydraulic support arm 8 is connected to the first sliding plate 6 and the second sliding plate 7 through a connecting rod 10.

[0021] Furthermore, the first transverse support beam 2, the second transverse support beam 3, and the third transverse support beam 4 are arranged parallel to each other.

[0022] Furthermore, the sliding rod 5 is provided in two sets, and the two ends of the sliding rod 5 are fixedly connected to the first transverse support beam 2 and the third transverse support beam 4 respectively, and the second transverse support beam 3 is fixedly installed in the middle position of the sliding rod 5.

[0023] Furthermore, the first sliding plate 6 is located between the first transverse support beam 2 and the second transverse support beam 3, and the second sliding plate 7 is located between the second transverse support beam 3 and the third transverse support beam 4.

[0024] In this embodiment, the first transverse support beam 2, the second transverse support beam 3, and the third transverse support beam 4 enhance the overall structural strength of the hydraulic chassis, making it more stable and able to withstand greater weight and pressure.

[0025] Furthermore, both sides of the first sliding plate 6 and the second sliding plate 7 are movably connected to connecting rods 10, and one end of the connecting rod 10 is movably connected to the hydraulic support arm 8 via a pin.

[0026] Furthermore, an adjusting screw 11 is installed at the middle position of the third transverse support beam 4. The adjusting screw 11 is rotatably connected to the third transverse support beam 4 through a bearing. The upper part of the adjusting screw 11 is threadedly connected to the first sliding plate 6 and the second sliding plate 7, respectively.

[0027] Specifically, the second transverse support beam 3 is provided with a mounting hole for accommodating the adjusting screw 11, and a handwheel 14 is fixedly provided at the bottom of the adjusting screw 11.

[0028] In this embodiment, by rotating the adjusting screw 11, the first sliding plate 6 and the second sliding plate 7 can be controlled to move on the sliding rod 5. The first sliding plate 6 and the second sliding plate 7 will drive the connecting rod 10 to push the hydraulic support arm 8 to move, so that the hydraulic support arm 8 can be easily controlled to be stored. When in use, the operator only needs to rotate the adjusting screw 11 to control the four hydraulic support arms 8 to unfold and retract.

[0029] Furthermore, both sides of the chassis frame 1 are provided with storage slots 12 for accommodating hydraulic cylinders 9, and a support block 13 is fixedly provided at the bottom of the chassis frame 1, with the hydraulic support arm 8 located below the support block 13.

[0030] In this embodiment, the hydraulic cylinder 9 can be stored in the storage slot 12 when not in use, effectively reducing the space occupied by the crane when it is not in operation and improving space utilization. The support block 13 enhances the stability of the chassis frame 1, making the entire crane structure more stable. The hydraulic support arm 8 is located below the support block 13. When the hydraulic support arm 8 is extended, it can stably support the crane, ensuring the stability and safety of the crane during operation.

[0031] Working principle: By rotating the adjusting screw 11, the movement of the first sliding plate 6 and the second sliding plate 7 on the sliding rod 5 can be controlled. The first sliding plate 6 and the second sliding plate 7 will slide along the sliding rod 5, thereby driving the hydraulic support arm 8 to extend or retract via the connecting rod 10. When the crane needs to work, the operator can rotate the handwheel 14 to rotate the adjusting screw 11. Since the adjusting screw 11 is threadedly connected to the first sliding plate 6 and the second sliding plate 7, the rotation of the adjusting screw 11 will drive the first sliding plate 6 and the second sliding plate 7 to move, thereby pushing the hydraulic support arm 8 to extend via the connecting rod 10, increasing the stability and support force of the crane. Conversely, when it is necessary to retract the hydraulic support arm 8, simply rotate the handwheel 14 in the opposite direction to rotate the adjusting screw 11 in the opposite direction, which will drive the first sliding plate 6 and the second sliding plate 7 to move towards the center, causing the hydraulic support arm 8 to retract below the chassis frame 1, saving space and facilitating transportation and storage. In addition, the hydraulic cylinder 9 can further adjust the height and angle of the hydraulic support arm 8 to adapt to different working environments and needs. In summary, the hydraulic chassis of the crane of this utility model has the advantages of simple structure, convenient operation and good stability, and can be widely used in various lifting operations.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[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 crane hydraulic chassis comprising a chassis frame (1), characterized in that: The bottom of the chassis frame (1) is fixedly provided with a first transverse support beam (2), a second transverse support beam (3) and a third transverse support beam (4), the first transverse support beam (2), the second transverse support beam (3) and the third transverse support beam (4) are provided with a sliding rod (5) therebetween, the sliding rod (5) is provided with a first sliding plate (6) and a second sliding plate (7), the two ends of the first sliding plate (6) and the second sliding plate (7) are slidably connected with the two sliding rods (5) respectively, the first transverse support beam (2) and the second transverse support beam (3) are movably provided with a hydraulic support arm (8) on the two sides, one end of the hydraulic support arm (8) is fixedly provided with a hydraulic cylinder (9), one side of the hydraulic support arm (8) is drivingly connected with the first sliding plate (6) and the second sliding plate (7) through a connecting rod (10) respectively.

2. The crane hydraulic chassis of claim 1, wherein, The first transverse support beam (2), the second transverse support beam (3) and the third transverse support beam (4) are arranged in parallel with each other.

3. The crane hydraulic chassis of claim 2, wherein, The sliding rod (5) is provided with two groups, and the two ends of the sliding rod (5) are fixedly connected with the first transverse support beam (2) and the third transverse support beam (4) respectively, and the second transverse support beam (3) is fixedly arranged at the middle position of the sliding rod (5).

4. The crane hydraulic chassis of claim 3, wherein, The first sliding plate (6) is located between the first transverse support beam (2) and the second transverse support beam (3), and the second sliding plate (7) is located between the second transverse support beam (3) and the third transverse support beam (4).

5. The crane hydraulic chassis of claim 4, wherein, The two sides of the first sliding plate (6) and the second sliding plate (7) are movably connected with the connecting rod (10), and one end of the connecting rod (10) is movably connected with the hydraulic support arm (8) through a pin shaft.

6. The crane hydraulic chassis of claim 5, wherein, The middle position of the third transverse support beam (4) is provided with an adjusting screw (11), the adjusting screw (11) is rotatably connected with the third transverse support beam (4) through a bearing, and the upper portions of the adjusting screw (11) are threadedly connected with the first sliding plate (6) and the second sliding plate (7) respectively.

7. The crane hydraulic chassis of claim 6, wherein, The second transverse support beam (3) is provided with a mounting hole for accommodating the adjusting screw (11), and the bottom of the adjusting screw (11) is fixedly provided with a hand wheel (14).

8. The crane hydraulic chassis of claim 7, wherein, The two sides of the chassis frame (1) are provided with a receiving groove (12) for accommodating the hydraulic cylinder (9), the bottom of the chassis frame (1) is fixedly provided with a support block (13), and the hydraulic support arm (8) is located below the support block (13).

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