Hot-rolled J-shaped steel for forklift gantry
By designing hot-rolled J-shaped steel for forklift door frames at the connection between the guide groove structure and the arc transition, the problems of uneven stress and difficulty in mass production in the prior art are solved, and more uniform stress distribution and higher production efficiency are achieved.
Patent Information
- Application Number
- CN202421676383.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The J-shaped steel used in the existing forklift gantry lacks the connection between the guide groove structure and the arc transition, resulting in uneven stress, making it difficult to achieve mass production and supply, and affects the smooth guiding use of limits in actual applications, which in turn affects bending stress, safety factor and production efficiency.
A hot-rolled J-shaped steel for forklift door stand is designed, and the design is adopted for the connection between the guide groove structure and the arc transition, including a web, a first wing plate, a second wing plate and a third wing plate, and a first trough, a second trough and a wedge table are provided, and mass production is achieved through hot rolling and one-piece molding.
Through the design of the guide groove structure and the arc transition connection, the J-shaped steel is subjected to more uniform stress, the bending stress and local stress tend to be balanced, the safety factor is improved, and the limit is smoothly guided, and mass production and supply are achieved, which improves production efficiency and metal utilization.
Smart Images
Figure CN222922853U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hot-rolled steel sections, in particular to a hot-rolled J-shaped steel for a forklift mast. Background Technique
[0002] The mast is the lifting mechanism of a forklift. As the core working device of a forklift, safety and operation convenience are the key indicators to measure the advancement of the mast mechanism. The steel section used to make the mast, as a basic component, its external dimensions and cross-sectional characteristics determine the safety and operation convenience of the entire mast. The J-shaped steel for a forklift mast is mainly applied to the inner and outer masts of the lifting part of a forklift. Its stability directly affects the service life of the mast rollers, pulleys and lifting cylinders, and has high requirements for strength, toughness and dimensional accuracy.
[0003] In the prior art, the J-shaped steel does not have a guide groove structure and a hot-rolled forming design with arc transitions at all joints, which is not convenient for the J-shaped steel to be stressed more evenly and not convenient for mass production and supply. At the same time, it is not convenient for the J-shaped steel forklift mast to be limited and guided smoothly in actual use, thereby affecting the numerical values of the overall bending stress and local stress, safety factor and production efficiency of the J-shaped steel.
[0004] Therefore, it is necessary to design a hot-rolled J-shaped steel for a forklift mast to solve the above-mentioned problems. Content of the Utility Model
[0005] The purpose of the utility model is to provide a hot-rolled J-shaped steel for a forklift mast to improve the J-shaped steel, which has a guide groove structure and a design with arc transitions at all joints, is convenient for the J-shaped steel to be stressed more evenly, the numerical values of the overall bending stress and local stress are more balanced, the safety factor is improved, and at the same time, it is convenient for the J-shaped steel forklift mast to be limited and guided smoothly in actual use, and is formed by hot rolling in one step, which can realize mass production and supply, and the production efficiency and metal utilization rate are significantly improved, so as to solve the problems raised in the above background technique.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A hot-rolled J-shaped steel for a forklift mast includes a web, a first wing plate, a second wing plate and a third wing plate. The first wing plate is installed on the right side of the lower surface of the web, the second wing plate is installed on the left side of the lower surface of the web, a first guide groove is arranged at the center of the lower surface of the web and adjacent to the first wing plate and the second wing plate, the third wing plate is installed on one side of the upper surface of the web, a wedge platform is arranged on the upper surface of the web close to the third wing plate, and a second guide groove is arranged on the other side of the upper surface of the web.
[0008] As a preferred solution of the utility model, a J-shaped cross-section steel is formed between the web and the first wing plate, the second wing plate and the third wing plate, and the J-shaped steel is directly formed in one piece by hot rolling.
[0009] As a preferred solution of the utility model, both sides of the first guide groove smoothly transition to the lower surface of the web.
[0010] As a preferred solution of the utility model, both sides of the second guide groove smoothly transition to the upper surface of the web.
[0011] As a preferred solution of the present invention, the outer sides of the first wing panel, the second wing panel and the third wing panel are all arc transitions.
[0012] As a preferred solution of the utility model, the wedge-shaped platform is located at the connection between the upper end surface of the second wing plate and the left side surface of the third wing plate, and the angle between the wedge-shaped platform and the upper surface of the web is 5-20°.
[0013] Beneficial effect: With regard to the J-shaped steel in the prior art, there is no guide groove structure and the hot-rolled forming design with arc transition at the connection of each part, which makes it inconvenient to make the J-shaped steel bear more uniform force and inconvenient to realize mass production and supply. At the same time, it is not convenient to use the J-shaped steel forklift door frame in actual application to limit and guide smoothly, thereby affecting the overall J-shaped steel bending stress and local stress value, safety factor and production efficiency. In the utility model, the outer sides of the first wing plate, the second wing plate and the third wing plate are all arc transitions, the wedge-shaped platform is located at the connection between the upper end face of the second wing plate and the left side face of the third wing plate, and the angle between the wedge-shaped platform and the upper surface of the web is 5-20°, the two sides of the first guide groove smoothly transition with the lower surface of the web, and the two sides of the second guide groove smoothly transition with the upper surface of the web, so that the various connections set by the J-shaped steel have smooth curve transitions, the force is more uniform, the overall bending stress and local stress values are more balanced, the safety factor is improved, and the first guide groove has The guide groove structure formed by the groove and the second guide groove makes it easy for the J-shaped steel forklift door frame to be limited and smoothly guided in actual application. At the same time, a J-shaped cross-section steel is formed between the web plate and the first wing plate, the second wing plate and the third wing plate, and the J-shaped steel is directly formed in one piece by hot rolling. By forming the J-shaped steel in one step by hot rolling, mass production and supply can be achieved, and production efficiency and metal utilization rate are significantly improved. Hot-rolled J-shaped steel can replace welded J-shaped steel, avoiding complex processing processes such as welding, straightening and alignment, and improving the overall stability of the J-shaped steel. The overall structure is simple and has a guide groove structure and a design in which the joints of each part are all arc transitions, which makes it easy to make the J-shaped steel be stressed more evenly, and the overall bending stress and local stress values are more balanced, and the safety factor is improved. At the same time, it is easy for the J-shaped steel forklift door frame to be limited and smoothly guided in actual application, and hot rolling is used for one-time forming, which can achieve mass production and supply, and production efficiency and metal utilization rate are significantly improved, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is the overall three-dimensional view of the hot-rolled J-shaped steel for a forklift mast of the present utility model;
[0015] Figure 2 This is the overall front view of the hot-rolled J-shaped steel for a forklift mast of the present utility model;
[0016] Figure 3 This is the overall top view of the hot-rolled J-shaped steel for a forklift mast of the present utility model.
[0017] In the figure: 1, web; 11, first guide groove; 12, second guide groove; 2, first wing plate; 3, second wing plate; 4, third wing plate; 5, wedge table. Detailed implementation manners
[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. 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.
[0019] For the convenience of understanding the present utility model, the present utility model will be described more comprehensively below with reference to the relevant. Several embodiments of the present utility model are given. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present utility model more thorough and comprehensive.
[0020] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may also be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be a middle element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.
[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the specification of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0022] Please refer to Figures 1-3 , the present utility model provides a technical solution:
[0023] A hot-rolled J-shaped steel for a forklift mast, comprising a web 1, a first flange 2, a second flange 3 and a third flange 4. The right side of the lower surface of the web 1 is provided with the first flange 2, the left side of the lower surface of the web 1 is provided with the second flange 3, a first guide groove 11 is arranged at the center of the lower surface of the web 1 on the adjacent side of the first flange 2 and the second flange 3, the third flange 4 is installed on one side of the upper surface of the web 1, a wedge-shaped platform 5 is arranged on one side of the upper surface of the web 1 close to the third flange 4, and a second guide groove 12 is arranged on the other side of the upper surface of the web 1.
[0024] Specifically, the outer sides of the first flange 2, the second flange 3 and the third flange 4 are all in arc transition. The wedge-shaped platform 5 is located at the connection between the upper end surface of the second flange 3 and the left side surface of the third flange 4, and the included angle between the wedge-shaped platform 5 and the upper surface of the web 1 is 5-20°. The two sides of the first guide groove 11 are smoothly transitioned with the lower surface of the web 1, and the two sides of the second guide groove 12 are smoothly transitioned with the upper surface of the web 1. The smooth curve transition at each connection of the J-shaped steel makes the force more uniform, the values of the overall bending stress and the local stress are more balanced, the safety factor is improved, and the guide groove structure composed of the first guide groove 11 and the second guide groove 12 is convenient for the J-shaped steel forklift mast to be easily limited and smoothly guided in actual application. At the same time, the web 1, the first flange 2, the second flange 3 and the third flange 4 form a J-shaped cross-section steel, and the J-shaped steel is directly integrally formed by hot rolling. By using hot rolling to form the J-shaped steel at one time, mass production and supply can be realized, the production efficiency and the metal utilization rate are significantly improved, and the welded J-shaped steel can be replaced by the hot-rolled J-shaped steel, avoiding complex processing processes such as welding, straightening and alignment, and improving the overall stability of the J-shaped steel.
[0025] In summary, the utility model not only has a simple structure, but also has a design with a guide groove structure and arc transitions at all connections of each part, which is convenient for making the force of the J-shaped steel more uniform, the values of the overall bending stress and the local stress are more balanced, the safety factor is improved, and at the same time, it is convenient for the J-shaped steel forklift mast to be easily limited and smoothly guided in actual application. And it is formed by hot rolling at one time, which can realize mass production and supply, the production efficiency and the metal utilization rate are significantly improved, and it is very practical.
[0026] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A hot-rolled J-shaped steel for a forklift gantry, comprising a web (1), a first wing plate (2), a second wing plate (3) and a third wing plate (4), characterized in that A first wing plate (2) is installed on the right side of the lower surface of the web (1), a second wing plate (3) is installed on the left side of the lower surface of the web (1), a first guide groove (11) is provided on the lower surface of the web (1) and at the center of one side adjacent to the first wing plate (2) and the second wing plate (3), a third wing plate (4) is installed on one side of the upper surface of the web (1), a wedge-shaped platform (5) is provided on one side of the upper surface of the web (1) close to the third wing plate (4), and a second guide groove (12) is provided on the other side of the upper surface of the web (1).
2. The hot-rolled J-shaped steel for a forklift mast according to claim 1, characterized in that: The web (1) and the first wing plate (2), the second wing plate (3) and the third wing plate (4) form a J-shaped cross-sectional steel, and the J-shaped steel is directly formed in one piece by hot rolling.
3. The hot-rolled J-shaped steel for a forklift mast according to claim 1, characterized in that: Both sides of the first guide groove (11) smoothly transition to the lower surface of the web (1).
4. The hot-rolled J-shaped steel for a forklift mast according to claim 1, characterized in that: Both sides of the second guide groove (12) smoothly transition to the upper surface of the web (1).
5. The hot-rolled J-shaped steel for a forklift mast according to claim 1, characterized in that: The outer sides of the first wing plate (2), the second wing plate (3) and the third wing plate (4) are all arc transitions.
6. The hot-rolled J-shaped steel for a forklift mast according to claim 1, characterized in that: The wedge-shaped platform (5) is located at the connection between the upper end surface of the second wing plate (3) and the left side surface of the third wing plate (4), and the angle between the wedge-shaped platform (5) and the upper surface of the web (1) is 5-20°.