A steering cylinder base for a wheel loader

By adding reinforcing plates and connecting plates inside the front frame of the loader to form a box-type structure, the problems of arc crater cracks and air holes during the welding of the steering support were solved, the strength of the steering cylinder seat was enhanced, and the reliability of steering was ensured.

CN224311824UActive Publication Date: 2026-06-02LONGGONG SHANGHAI MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LONGGONG SHANGHAI MASCH MFG CO LTD
Filing Date
2025-06-09
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The existing front frame steering support of the loader is prone to arc crater cracks and porosity during the welding process, which leads to the expansion of weld cracks and causes steering failure.

Method used

An upper and lower reinforcing plate is added between the right and left sides of the front frame, and the steering cylinder seat is divided into left and right parts by a connecting plate to form a box-type structure to enhance the strength of the steering cylinder seat.

Benefits of technology

The increased stress area of ​​the steering cylinder seat improved its strength, prevented weld cracking, and ensured the steering stability of the front frame.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model relates to a steering cylinder seat for a wheel loader, belonging to the technical field of wheel loader technology. It includes a right side plate of the front frame, a left side plate of the front frame, an upper reinforcing plate, a lower reinforcing plate, a connecting plate, two upper steering cylinder bearings, two lower steering cylinder bearings, and their connection relationships. The steering cylinder seat structure of this utility model optimizes the original steering cylinder seat structure. The upper and lower reinforcing plates are connected between the right side plate and the left side plate of the front frame, increasing the stress-bearing area of ​​the steering cylinder seat and thus enhancing its strength. Simultaneously, the connecting plate is located at the center of the steering cylinder seat, dividing the structure into left and right parts. These left and right parts form box-like structures with the right side plate and the left side plate of the front frame, respectively, further enhancing the strength of the steering cylinder bearing structure.
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Description

Technical Field

[0001] This utility model relates to a steering cylinder seat for a wheel loader, belonging to the technical field of wheel loader technology. Background Technology

[0002] The steering support installed inside the front frame of the existing loader is made by welding together two regular flat plates, a vertical rib, and an irregularly shaped plate. These are first welded together into smaller components, such as... Figure 1 As shown, the entire assembly is then welded to the inner side of the left side panel 4 of the front frame. An irregular plate 1 is fully welded along the length of one side of the inner side of the left side panel 4, meaning that the connection between the irregular plate 1 and the inner side of the left side panel 4 of the front frame is a complete weld. During welding and use, it was found that the weld between the two regular plates 2 and the plate 1 is prone to arc crater cracks and porosity when the welding arc is closed. The weld often starts to crack from here and then slowly spreads, leading to the failure of the front frame steering. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems existing in the background art. To this end, a steering cylinder seat for a wheel loader is provided, which solves the problem that when the steering support inside the front frame of the loader is welded to the left side plate, arc crater cracks and air holes are easily generated, causing the weld to crack and expand, resulting in the failure of the front frame steering.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A steering cylinder seat for a wheel loader includes a right side plate and a left side plate of the front frame. An upper reinforcing plate and a lower reinforcing plate are welded between the right side plate and the left side plate of the front frame. There is a gap between the upper and lower reinforcing plates, and a connecting plate is welded between them. The upper reinforcing plate is fixedly connected to two upper steering cylinder bearings, which are symmetrically distributed on both sides of the connecting plate. The lower reinforcing plate is fixedly connected to two lower steering cylinder bearings, which are symmetrically distributed on both sides of the connecting plate.

[0006] The following is a further defined technical solution of this utility model: the upper steering cylinder bearing and the lower steering cylinder bearing correspond one-to-one.

[0007] The following is a further defined technical solution of this utility model: the connecting plate is located at the center of the steering cylinder seat and divides the steering cylinder seat into left and right parts, and the left and right parts form a box structure with the right side plate of the front frame and the left side plate of the front frame, respectively.

[0008] Compared with the prior art, the present invention has the following technical effects:

[0009] The steering cylinder seat structure of this utility model optimizes the original steering cylinder seat structure. The upper and lower reinforcing plates are connected between the right side plate and the left side plate of the front frame, increasing the stress area of ​​the steering cylinder seat and thus enhancing its strength. At the same time, the connecting plate is located at the center of the steering cylinder seat and divides the steering cylinder seat structure into left and right parts. The left and right parts form a box structure with the right side plate and the left side plate of the front frame, respectively, further enhancing the strength of the steering cylinder seat structure.

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0011] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A schematic diagram of the steering support structure used in the front frame of an existing loader;

[0013] in, Figure 1 The labels in the text are: 1. Steering cylinder mounting plate; 2. Steering cylinder seat plate; 3. Connecting plate; 4. Front frame left side plate;

[0014] Figure 2 This is a schematic diagram of the steering cylinder seat structure of this utility model;

[0015] in, Figure 2 The labels are: 1. Upper reinforcing plate; 2. Lower steering cylinder axle seat; 3. Lower reinforcing plate; 4. Connecting plate; 5. Right side plate of the front frame; 6. Left side plate of the front frame. Detailed Implementation

[0016] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0017] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0019] like Figure 2 As shown, this embodiment provides a steering cylinder seat for a wheel loader, mainly including a right side plate 5 of the front frame, a left side plate 6 of the front frame, an upper reinforcing plate 1, a lower reinforcing plate 3, a connecting plate 4, two upper steering cylinder bearings, and two lower steering cylinder bearings 2. The upper reinforcing plate 1, the lower reinforcing plate 3, the connecting plate 4, the two upper steering cylinder bearings, and the two lower steering cylinder bearings 2 are assembled and welded together. Specifically, the upper reinforcing plate 1 and the lower reinforcing plate 3 are welded between the right side plate 5 of the front frame and the left side plate 6 of the front frame. There is a gap between the upper reinforcing plate 1 and the lower reinforcing plate 3, and a connecting plate 4 is welded between them. The upper reinforcing plate 1 is fixedly connected to the two upper steering cylinder bearings, which are symmetrically distributed on both sides of the connecting plate 4. The lower reinforcing plate 3 is fixedly connected to the two lower steering cylinder bearings 2, which are symmetrically distributed on both sides of the connecting plate 4. The upper steering cylinder bearings and the lower steering cylinder bearings 2 correspond one-to-one.

[0020] Therefore, the steering cylinder seat structure of this utility model optimizes the original steering cylinder seat structure. The upper reinforcing plate 1 and the lower reinforcing plate 3 are connected between the right side plate 5 and the left side plate 6 of the front frame, increasing the stress area of ​​the steering cylinder seat and thus enhancing its strength. At the same time, the connecting plate 4 is located at the center of the steering cylinder seat and divides the steering cylinder seat structure into left and right parts. The left and right parts form a box structure with the right side plate 5 and the left side plate 6 of the front frame, respectively, further enhancing the strength of the steering cylinder seat structure, reducing the stress on the weld, and solving the problem that arc crater cracks and porosity are easily generated when the steering support is welded to the left side plate, causing the weld to crack and expand, leading to the failure of the front frame steering.

[0021] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the disclosed methods and techniques, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Therefore, all equivalent changes made based on the shape, structure, and principle of this utility model without departing from its technical solution should be covered within the protection scope of this utility model.

Claims

1. A steering cylinder seat for a wheel loader, characterized in that, The device includes a right front frame plate and a left front frame plate. An upper reinforcing plate and a lower reinforcing plate are welded between the right front frame plate and the left front frame plate. There is a gap between the upper and lower reinforcing plates, and a connecting plate is welded between them. The upper reinforcing plate is fixedly connected to two upper steering cylinder bearings, which are symmetrically distributed on both sides of the connecting plate. The lower reinforcing plate is fixedly connected to two lower steering cylinder bearings, which are symmetrically distributed on both sides of the connecting plate.

2. The steering cylinder seat of a wheel loader as described in claim 1, characterized in that, The upper steering cylinder bearing and the lower steering cylinder bearing are in a one-to-one correspondence.

3. The steering cylinder seat of a wheel loader as described in claim 1, characterized in that, The connecting plate is located at the center of the steering cylinder seat and divides the steering cylinder seat into left and right parts. The left and right parts form a box structure with the right side plate and the left side plate of the front frame, respectively.