Lock seat structure with low welding deformation
By adopting a split lock seat structure in the crane steering cylinder, the welding area between the lock seat and the cylinder is reduced, the problems of oil leakage and cylinder deformation of the lock seat weld are solved, and the reliability of the cylinder is improved.
Patent Information
- Application Number
- CN202422078011.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-27
AI Technical Summary
The lock seat weld of the crane steering cylinder is prone to oil leakage, and the cylinder barrel welding deformation is relatively serious, which affects the reliability of the cylinder.
Using a split lock seat structure, the welding area between the lock seat and the cylinder is reduced by setting a joint seat on the cylinder and welding it around the joint seat, and then the lock seat is put on the joint seat and welded.
It effectively reduces the risk of oil leakage in the weld, improves the problem of cylinder deformation caused by welding stress, and improves the reliability of the oil cylinder.
Smart Images
Figure CN222963115U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a lock seat structure with low welding deformation, belonging to the technical field of hydraulic cylinders. Background Art
[0002] The steering cylinder used in a crane mainly provides assistance for the steering of the whole vehicle when the host vehicle steers. The left side of the steering hydraulic cylinder is connected to the kingpin knuckle arm of the axle, and the right side is connected to the fixed point of the axle housing. When the crane is driving straight, the steering hydraulic cylinder remains in the middle position. During driving, by controlling the telescopic movement of the cylinder, the wheel side of the axle is driven to rotate around the kingpin, so as to realize the steering function. According to the market feedback summary of the steering cylinder in recent years, the oil leakage of the lock seat weld and the welding deformation of the cylinder barrel are highly reported. Content of the Utility Model
[0003] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides a lock seat structure with low welding deformation, which solves the problems of oil leakage of the lock seat weld and cylinder barrel deformation of the crane steering cylinder.
[0004] The utility model is realized by the following technical solutions: a lock seat structure with low welding deformation, including a cylinder barrel and a split lock seat. The split lock seat includes a lock seat and a joint seat. The joint seat is arranged on the cylinder barrel. The lock seat is sleeved on the joint seat and connected to the joint seat. The joint seat is welded on the cylinder barrel, and the lock seat is welded to the joint seat.
[0005] The lock seat is connected to the valve block.
[0006] The joint seat is circumferentially welded on the cylinder barrel.
[0007] The top of the lock seat is welded to the joint seat.
[0008] The beneficial effects of the utility model are as follows: the welding area between the lock seat and the cylinder barrel is small, reducing the risk of oil leakage of the weld due to weld defects. At the same time, the problem of cylinder barrel deformation caused by welding stress is improved. This split welding cooperation method greatly improves the reliability of the hydraulic cylinder. Description of the Drawings
[0009] The following further describes the utility model according to the drawings and embodiments.
[0010] Figure 1 is the structural schematic diagram of the utility model;
[0011] Figure 2 is Figure 1 the A-A cross-sectional view of
[0012] In the figure: 1. Cylinder barrel; 2. Lock seat; 3. Joint seat. Detailed Embodiment
[0013] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0014] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0015] As Figure 1 and Figure 2 shown, a lock seat structure with low welding deformation includes a cylinder barrel 1 and a split lock seat. The split lock seat includes a lock seat 2 and a joint seat 3. The joint seat 3 is arranged on the cylinder barrel 1. The lock seat 2 is sleeved on the joint seat 3 and connected to the joint seat 3. The joint seat 3 is welded to the cylinder barrel 1, and the lock seat 2 is welded to the joint seat 3.
[0016] The lock seat 2 is connected to a valve block. The joint seat 3 is circumferentially welded to the cylinder barrel 1. The lock seat 2 is welded to the top of the joint seat 3.
[0017] First, weld the joint seat 3 on the cylinder barrel 1, then sleeve the lock seat 2 on the joint seat 3 and weld it to the joint seat 3. After welding, flatten the welding plane. Compared with the traditional circumferential welding method of the lock seat, this split lock seat welding method has a smaller welding area. Only the joint seat needs to be circumferentially welded, and then the lock seat is welded to the joint seat, reducing the risk of oil leakage from the large-area welds around the lock seat. At the same time, it also improves the problem of cylinder barrel deformation caused by welding stress, enhancing the reliability of the oil cylinder.
[0018] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A lock seat structure with low welding deformation, characterized in that: The invention comprises a cylinder (1) and a split lock seat, wherein the split lock seat comprises a lock seat (2) and a joint seat (3), wherein the joint seat (3) is arranged on the cylinder (1), the lock seat (2) is sleeved on the joint seat (3) and connected to the joint seat (3), the joint seat (3) is welded to the cylinder (1), and the lock seat (2) is welded to the joint seat (3).
2. A lock seat structure with low welding deformation according to claim 1, characterized in that: The lock seat (2) is connected to the valve block.
3. The lock seat structure with low welding deformation according to claim 1, characterized in that: The joint seat (3) is welded to the cylinder barrel (1) around its periphery.
4. The lock seat structure with low welding deformation according to claim 1, characterized in that: The lock seat (2) is welded to the top of the joint seat (3).