A hydraulic cylinder and its clevis structure, and an aerial work platform

Abstract

This utility model discloses a hydraulic cylinder and its clevis structure, as well as an aerial work platform. The hydraulic cylinder clevis structure includes a cuboid structure and a cylindrical structure. The cylindrical structure is fixed to the middle area of ​​one side of the cuboid structure. Both ends of the cuboid structure along the length of the side where the cylindrical structure is installed are set as stepped structures, and the corners of the stepped structures are rounded. This effectively increases the thickness of the clevis without affecting the installation of the main unit. The rounded corners can effectively reduce stress concentration and greatly improve the working strength of the clevis. This solves the problem of increased workload and production costs caused by changing the installation structure of the main unit, meets the needs of the main unit customer, and also realizes the development of a large-tonnage main unit.

Description

Technical Field

[0001] This utility model relates to a hydraulic cylinder lug structure, belonging to the field of hydraulic cylinder technology. Background Technology

[0002] Telescopic hydraulic cylinders are a type of hydraulic cylinder frequently used in aerial work platforms. They are connected and fixed to the main unit via lugs. Their function is to both support the work platform and ensure its overall stability, making them a crucial component of the main unit. Therefore, the main unit places high demands on the strength of the hydraulic cylinder lug connection points. To meet the high strength requirements of main unit customers, improving the strength of the hydraulic cylinder lugs is essential.

[0003] like Figure 1 , Figure 2 As shown, current aerial work platforms achieve high-intensity operations by thickening the overall lugs, which requires changes to the overall structure of the main unit, resulting in increased workload, higher production costs, and longer delivery cycles. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this utility model provides a hydraulic cylinder lug structure, which solves the problem of increased workload and production costs caused by changes in the overall structure of the main unit.

[0005] This utility model is achieved according to the following technical solution:

[0006] In a first aspect, this utility model provides a hydraulic cylinder lug structure, including a cuboid structure and a cylindrical structure, wherein the cylindrical structure is fixed to the middle region of one side of the cuboid structure; both ends of the cuboid structure along the length of the side on which the cylindrical structure is mounted are provided as stepped structures; and the corners of the stepped structures are provided as rounded corners.

[0007] In some embodiments, the connection between the cuboid structure and the cylindrical structure is smoothly transitioned by a rounded corner.

[0008] In some embodiments, the hydraulic cylinder lug structure is integrally cast from a cuboid structure and a cylindrical structure.

[0009] In some embodiments, the hydraulic cylinder lug structure is symmetrical about the central axis of the cylindrical structure.

[0010] In some embodiments, the cuboid structure is divided into a left region, a middle region, and a right region along its length; wherein the width dimension gradually decreases from the middle region to the left and right regions.

[0011] Secondly, this utility model provides a hydraulic cylinder, including a cylinder body, a telescopic rod located inside the cylinder body, and the aforementioned hydraulic cylinder lug structure, wherein the cylindrical structure is fixed together with the end of the telescopic rod in the length direction to form a piston rod.

[0012] In some embodiments, the cylindrical structure is inserted into the telescopic rod, and the two are welded together.

[0013] In some embodiments, the cross-sectional structure of the cylindrical structure is a convex shape.

[0014] Thirdly, this utility model provides an aerial work platform, including the aforementioned hydraulic cylinder lug structure; or, including the aforementioned hydraulic cylinder.

[0015] The beneficial effects of this utility model are:

[0016] By incorporating stepped structures at both ends of the hydraulic cylinder lug structure, and rounding the corners of the stepped structures, the working strength of the hydraulic cylinder lug structure is improved, meeting the needs of the main engine customer and also realizing the development of large-tonnage main engines. Attached Figure Description

[0017] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] In the attached diagram:

[0019] Figure 1 A perspective view of the hydraulic cylinder lug structure in the prior art;

[0020] Figure 2 This is a front view of a prior art hydraulic cylinder lug structure;

[0021] Figure 3 This is a perspective view of the hydraulic cylinder lug structure of this utility model;

[0022] Figure 4 This is a front view of the hydraulic cylinder lug structure of this utility model;

[0023] Figure 5 This is a cross-sectional view of the hydraulic cylinder of this utility model.

[0024] Attached diagram labels: 1-cubic structure, 2-cylindrical structure, 3-step structure, 4-rounded corner, 5-telescopic rod.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "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.

[0028] In the description of this utility model, it should 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 mechanical connection or an electrical 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.

[0029] The previous hydraulic cylinder lug structure, due to the relatively thin lug connection part, was only suitable for main units with low strength and small tonnage, and could no longer meet the needs of main unit customers. In order to meet the working environment requirements of customers with high intensity operation, and also for the research and development of large tonnage main units, the lug structure had to be improved.

[0030] like Figure 1 As shown, the existing hydraulic cylinder lug structure consists of a cuboid structure 1 and a cylindrical structure 2. The strength is increased by thickening the lug as a whole. This requires the overall structure of the main unit to change accordingly, resulting in increased workload, higher production costs, and longer delivery cycles.

[0031] like Figure 2As shown, a hydraulic cylinder clevis structure includes a cuboid structure and a cylindrical structure. The cylindrical structure is fixed to the middle area of ​​one side of the cuboid structure. Both ends of the cuboid structure along the length of the side where the cylindrical structure is installed are stepped structures, and the corners of the stepped structures are rounded. This effectively increases the clevis thickness without affecting the installation of the main unit. The rounded corners can effectively reduce stress concentration and greatly improve the working strength of the clevis. This solves the problem of increased workload and production costs caused by changing the installation structure of the main unit, meets the needs of the main unit customer, and also realizes the development of large-tonnage main units.

[0032] A further proposed solution involves using rounded corners to create a smooth transition between the cuboid and cylindrical structures.

[0033] A further proposed design involves the hydraulic cylinder lug structure being integrally cast from a cuboid and a cylindrical structure.

[0034] A further design involves a hydraulic cylinder lug structure that is symmetrical about the central axis of a cylindrical structure.

[0035] A further design involves dividing the cube structure along its length into a left region, a middle region, and a right region; wherein the width of the middle region gradually decreases towards the left and right regions.

[0036] In summary, this utility model provides a hydraulic cylinder lug structure that achieves the following functions and effects:

[0037] (1) Stepped structures are provided at both ends of the hydraulic cylinder lug structure to improve the working strength and stability of the hydraulic cylinder;

[0038] (2) The corners of the stepped structure are rounded to reduce stress concentration.

[0039] The hydraulic cylinder provided by this utility model is described below. The hydraulic cylinder described below and the hydraulic cylinder lug structure described above can be referred to in correspondence.

[0040] The present invention provides a hydraulic cylinder, including a cylinder body, a telescopic rod located inside the cylinder body, and the aforementioned hydraulic cylinder lug structure. The cylindrical structure is fixed together with the end of the telescopic rod in the length direction to form a piston rod.

[0041] A further proposed solution involves inserting a cylindrical structure into the telescopic rod, with the two welded together.

[0042] A further proposed design involves a cylindrical structure with a convex cross-section.

[0043] The beneficial effects achieved by the hydraulic cylinder provided by this utility model are consistent with the beneficial effects achieved by the hydraulic cylinder lug structure provided by this utility model, so they will not be repeated here.

[0044] The aerial work platform provided by this utility model is described below. The aerial work platform described below can be referred to in correspondence with the hydraulic cylinder described above.

[0045] The aerial work platform provided by this utility model may include a hydraulic cylinder as described in any of the above embodiments.

[0046] The beneficial effects achieved by the aerial work platform provided by this utility model are consistent with the beneficial effects achieved by the hydraulic cylinder provided by this utility model, so they will not be repeated here.

[0047] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0048] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0049] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A hydraulic cylinder lug structure, comprising a cuboid structure and a cylindrical structure, wherein the cylindrical structure is fixed to the central region of one side of the cuboid structure; characterized in that: The cuboid structure has stepped structures at both ends of the side length direction where the cylindrical structure is installed. The corners of the stepped structure are rounded.

2. The hydraulic cylinder lug structure according to claim 1, characterized in that: The connection between the cuboid structure and the cylindrical structure is smoothly transitioned by rounded corners.

3. The hydraulic cylinder lug structure according to claim 1, characterized in that: The hydraulic cylinder lug structure is integrally cast from a cuboid structure and a cylindrical structure.

4. The hydraulic cylinder lug structure according to claim 1, characterized in that: The hydraulic cylinder lug structure is symmetrical about the central axis of the cylindrical structure.

5. The hydraulic cylinder lug structure according to claim 1, characterized in that: The cuboid structure is divided into a left region, a middle region, and a right region along its length; wherein the width of the middle region gradually decreases towards the left and right regions.

6. A hydraulic cylinder, comprising a cylinder body and a telescopic rod located within the cylinder body, characterized in that: It also includes the hydraulic cylinder lug structure according to any one of claims 1 to 5, wherein the cylindrical structure is fixed together with the end of the telescopic rod in the longitudinal direction to form a piston rod.

7. A hydraulic cylinder according to claim 6, characterized in that: The cylindrical structure is inserted into the telescopic rod, and the two are welded together.

8. A hydraulic cylinder according to claim 7, characterized in that: The cross-sectional structure of the cylindrical structure is a convex shape.

9. An aerial work platform, characterized in that: It includes the hydraulic cylinder lug structure according to any one of claims 1 to 5; or, it includes the hydraulic cylinder according to any one of claims 6 to 8.

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