An assembled oil cylinder height-adjustable limiting seat

Abstract

This utility model discloses an adjustable height limiting seat for an assembled hydraulic cylinder, installed on the front crossbeam of a vehicle frame. It includes a main structure, an angle adjustment structure, and a position adjustment structure, wherein the main structure is detachably installed on the front crossbeam via the position adjustment structure. The main structure includes an integrally formed, multi-segmented bent support plate, comprising a support segment, a horizontal segment, an adjustment segment, and a fixing segment connected sequentially. The support segment is located at the frontmost side of the entire main structure, and its upper end is bendable between it and the horizontal segment. The rear end of the horizontal segment connects to a vertical adjustment segment, which has an adjustment hole. The fixing segment is located at the lower end of the adjustment segment and extends rearward, and has a fixing hole. The angle adjustment structure is installed in the adjustment hole of the adjustment segment, enabling adjustment of the bending angle between the support segment and the horizontal segment. This utility model has a simple structure, low manufacturing cost, and allows for flexible assembly and fixed installation as well as adjustable height limiting, facilitating subsequent maintenance and installation.

Description

Technical Field

[0001] This utility model relates to the technical field of trailer parts, specifically to an assembled hydraulic cylinder height adjustable limit seat. Background Technology

[0002] Rear-tipping dump trucks are widely used for transporting various earthwork materials, ores, garbage, and other goods. They are freight vehicles that can automatically lift the cargo box to unload goods after parking, typically using hydraulic or mechanical lifting for self-unloading. In rear-tipping dump trucks, the dumping cylinder requires a limit bracket during operation. This limit bracket contacts a limit valve fixed to the outside of the cylinder's bottom to limit the cylinder's travel, thus restricting the rear-tipping angle of the cargo box. Currently, the limit bracket is usually welded to the corresponding frame beam after the cylinder is raised to its highest tilted position. However, in actual production, for export-oriented vehicles, the dumping cylinder is not installed in the vehicle body for safe transport. Assembly is then performed upon arrival at the destination. In this case, the conventionally welded limit bracket may break during transport, causing unnecessary cost losses. Furthermore, the limit valve rotates as the cylinder rises during assembly, and its position adjustment leads to inaccurate assembly precision. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing background technology and provide an assembled hydraulic cylinder height adjustable limit seat.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an assembled hydraulic cylinder height adjustable limiting seat, installed on the front crossbeam of the vehicle frame body, including a main structure, an angle adjustment structure, and a position adjustment structure. The main structure is detachably installed on the front crossbeam through the position adjustment structure. It includes an integrally formed, multi-segment bent support plate. The support plate includes a support segment, a horizontal segment, an adjustment segment, and a fixed segment connected in sequence. The support segment is located at the frontmost side of the entire main structure and is used to contact the hydraulic cylinder limit valve to limit the stroke. The upper end of the support segment is bendable between itself and the horizontal segment. The rear end of the horizontal segment is connected to a vertically arranged adjustment segment. The adjustment segment has an adjustment hole. The fixed segment is located at the lower end of the adjustment segment and extends rearward, and has a fixed hole. The angle adjustment structure is installed in the adjustment hole of the adjustment segment and can adjust the bending angle between the support segment and the horizontal segment.

[0005] Furthermore, the angle adjustment structure includes an adjustment screw and an adjustment nut, wherein the adjustment nut is welded and fixed to the adjustment section of the main structure and is coaxially arranged with the adjustment hole; the adjustment screw passes through the adjustment hole and is threadedly connected to the adjustment nut, and its front end is rotatably connected to the rear side wall of the support section.

[0006] Furthermore, the position adjustment structure includes fastening bolts, and correspondingly, the front crossbeam is provided with multiple mounting holes arranged side by side. The fastening bolts pass through two fixing holes on the aforementioned fixing section and any two adjacent corresponding mounting holes on the front crossbeam to complete the position adjustment and fixing between the main structure and the front crossbeam.

[0007] Furthermore, the support section and the horizontal section, as well as the horizontal section and the adjustment section, in the main structure are all rounded; the adjustment section and the fixed section are chamfered.

[0008] Furthermore, the angle between the support section and the horizontal section in the main structure changes from an initial 90° to an obtuse angle.

[0009] Furthermore, a reinforcing rib is fixedly installed between the adjusting section and the fixed section.

[0010] Compared with the prior art, the present invention has the following advantages: the present invention has a simple structure, low manufacturing cost, and can achieve flexible assembly and fixing as well as adjustable fixing of the limiting height, which facilitates subsequent maintenance and installation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a front view of the present invention;

[0013] Figure 3 This is a schematic diagram of the main structure of this utility model;

[0014] Figure 4 This is a schematic diagram of the front crossbeam structure corresponding to the installation position of this utility model;

[0015] Figure 5 This is a front view of another embodiment of the present invention;

[0016] In the diagram: 1. Support plate, 2. Adjusting screw, 3. Adjusting nut, 4. Front crossbeam, 5. Mounting hole, 6. Reinforcing rib, 11. Support section, 12. Horizontal section, 13. Adjusting section, 14. Fixing section, 15. Adjusting hole, 16. Fixing hole. Detailed Implementation

[0017] It should be noted that in the description of this utility model, terms such as "upper", "lower", "left", "right", "front", "rear", "center", "coaxial" and other terms indicating orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings. They are only used to facilitate the description of the structural relationships of the components in this utility model and do not specifically mean that any component in this utility model must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limitations on this utility model.

[0018] It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0020] like Figures 1 to 4 As shown, an adjustable hydraulic cylinder height limiting seat is installed on the front crossbeam 4 of the vehicle frame. It is mainly used in conjunction with the hydraulic cylinder limit valve on the hydraulic cylinder of the dump truck to form a stroke limit. The hydraulic cylinder limit valve is mostly fixedly installed on the outside of the bottom of the hydraulic cylinder, with the direction facing the hydraulic cylinder limit valve as the front. The limiting seat includes a main structure, an angle adjustment structure, and a position adjustment structure. The main structure includes an integrally formed, multi-segment bent support plate 1. The support plate 1 includes a support segment 11, a horizontal segment 12, an adjustment segment 13, and a fixed segment 14 connected sequentially from front to back. The support segment 11 is located at the frontmost side of the entire support plate 1, and its upper end is connected to the front end of the horizontal segment 12. The rear end of the horizontal segment 12 is connected to the adjustment segment 13, which is set vertically downward. The lower end of the adjustment segment 13 is connected to the fixed segment 14, which extends horizontally backward and is parallel to the horizontal segment 12. The support section 11 and the horizontal section 12 are rounded at the corners, allowing for bending and adjustment. The horizontal section 12 and the adjustment section 13 are also rounded at the corners and are fixed together. The adjustment section 13 and the fixed section 14 are chamfered to enhance support. An adjustment hole 15 is located at the center of the adjustment section 13, and two parallel fixing holes 16 are located on the fixed section 14. The angle adjustment structure is installed at the adjustment hole 15 of the adjustment section 13 and includes an adjustment screw 2 and an adjustment nut 3. The adjustment nut 3 is welded to the front wall of the adjustment section 13, coaxial with the adjustment hole 15, and has the same diameter. The adjustment screw 2 passes through the adjustment hole 15 and is threadedly connected to the adjustment nut 3. Its front end rotates and abuts against the rear wall of the support section 11, and an adjustment handle can be fixedly installed at the rear end of the adjustment screw 2. The position adjustment structure includes fastening bolts, and correspondingly, the front crossbeam 4 has multiple parallel mounting holes 5.

[0021] During assembly and use, firstly, based on the fixed installation position of the cylinder limit valve, determine the installation position of the limit seat. Then, contact the fixed section 14 of the support plate 1 with the upper end face of the front crossbeam 4. Use fastening bolts to pass through the corresponding fixing holes 16 and two adjacent mounting holes 5 for fixation. The selection of multiple parallel mounting holes 5 can adjust the fixed installation position of the limit seat. Next, lift the assembled cylinder. According to the final determined tilting height of the carriage, rotate the adjusting screw 2 to push it forward, causing the support section 11 to gradually shift from its initial angle of approximately 90° with the horizontal section 12 towards an obtuse angle (the angle between the support section 11 and the horizontal section 12). This ensures that the front end face of the support section 11 contacts the stroke limit end of the cylinder limit valve. Then, fix the adjusting screw 2 to prevent rotation, ensuring that the support section 11 in the main structure always contacts and stops at the highest lifting position, guaranteeing the safe use of the rear tilting carriage.

[0022] Further optimized technical solutions, refer to Figure 5 As shown, a reinforcing rib 6 is welded and fixed between the adjusting section 13 and the fixing section 14 in the main structure to improve the strength of the entire limiting seat.

[0023] In the above-mentioned angle adjustment structure, the adjusting screw 2 and adjusting nut 3 can be replaced with a telescopic cylinder, the end of which abuts against the rear side wall of the support section 11, and a piston rod positioning and fixing structure is added to prevent it from retracting.

[0024] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. An assembled oil cylinder height-adjustable limiting seat installed on a front cross beam of a vehicle frame body, characterized in that: The system includes a main structure, an angle adjustment structure, and a position adjustment structure. The main structure is detachably mounted on the aforementioned front crossbeam via the position adjustment structure. It includes an integrally formed, multi-segmented, bent support plate. The support plate comprises a support segment, a horizontal segment, an adjustment segment, and a fixed segment connected sequentially. The support segment is located at the front of the entire main structure and is used to contact the hydraulic cylinder limit valve to limit the stroke. The upper end of the support segment is bendable between itself and the horizontal segment. The rear end of the horizontal segment connects to a vertically positioned adjustment segment, which has an adjustment hole. The fixed segment is located at the lower end of the adjustment segment and extends rearward, and has a fixing hole thereon. The angle adjustment structure is installed in the adjustment hole of the adjustment segment and can adjust the bending angle between the support segment and the horizontal segment.

2. The assembled cylinder height adjustable limit seat according to claim 1, characterized in that: The angle adjustment structure includes an adjustment screw and an adjustment nut, wherein the adjustment nut is welded and fixed to the adjustment section of the main structure and is coaxially arranged with the adjustment hole; the adjustment screw passes through the adjustment hole and is threadedly connected to the adjustment nut, and its front end is rotatably connected to the rear side wall of the support section.

3. The assembled cylinder height adjustable limit seat according to claim 1, characterized in that: The position adjustment structure includes fastening bolts. Correspondingly, the front crossbeam is provided with multiple mounting holes arranged side by side. The fastening bolts pass through two fixing holes on the above-mentioned fixing section and any two adjacent corresponding mounting holes on the front crossbeam to complete the position adjustment and fixation between the main structure and the front crossbeam.

4. The assembled cylinder height adjustable limit seat according to claim 1, characterized in that: In the main structure, the support section and the horizontal section, as well as the horizontal section and the adjustment section, are all rounded; the adjustment section and the fixed section are chamfered.

5. The assembled cylinder height adjustable limit seat according to claim 1, characterized in that: The angle between the support section and the horizontal section in the main structure changes from an initial 90° to an obtuse angle.

6. The assembled cylinder height adjustable limit seat according to claim 1, characterized in that: A reinforcing rib is also fixedly installed between the adjusting section and the fixed section.

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