Belt conveyor frame leg

By using L-shaped steel to make belt conveyor legs, and utilizing bolt connections and pre-drilled mounting holes, the problems of large welding volume, high production cost, inconvenient shipping, and complex installation in existing technologies have been solved, achieving low-cost, high-efficiency mass production and simplified installation.

CN224590009UActive Publication Date: 2026-08-04JIAOZUO YUXIN MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIAOZUO YUXIN MASCH CO LTD
Filing Date
2025-09-22
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The existing design of the support leg structure of belt conveyors results in a large amount of welding, high production costs, inconvenient shipping, complex and costly installation, and difficulty in mass production.

Method used

The left and right uprights are made of L-shaped steel and connected by bolts and nuts. The upper and lower crossbeams and diagonal supports reduce welding, increase bolt connections, and reserve mounting holes to achieve a standardized design.

Benefits of technology

It reduces the amount of welding required in production, reduces environmental pollution, lowers manufacturing costs, simplifies shipping and installation, and improves installation efficiency and mass production capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the technical field of belt conveyor, specifically discloses a belt conveyor rack support leg, including left and right legs, the left and right legs are made of the L type steel of same size, one upper crossbeam is installed on the side wall top end of left and right legs respectively through bolt and nut, the top end of upper crossbeam is used for installing the upper carrier roller frame of belt conveyor, the lower end is used for installing the lower carrier roller frame, the lower crossbeam is installed between the other side wall of left and right legs through bolt and nut, still be provided with a plurality of other equipment mounting holes that are two from top to bottom distribution on the two side walls of left and right legs. The utility model's structure is connected with the foundation footscrew except the left and right legs welding, the rest is all bolt connection, the scene installation need not distinguish the left and right form of the left leg, take to use, improve the installation efficiency, reduce the installation labor intensity.
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Description

Technical Field

[0001] This utility model relates to the field of belt conveyor technology, and in particular to a belt conveyor frame support leg. Background Technology

[0002] Traditional belt conveyor outriggers come in four main series and two types: Type I and Type II (the main difference being the presence or absence of diagonal bracing). However, in practical use, the existing belt conveyor outriggers have been found to have the following problems: 1. Structural aspects: The outriggers of the DTII(A) series feature welded cross braces (equilateral angle steel + steel plate, welded to both sides of the uprights). The diagonal brace connecting plates of the outriggers are welded to both sides of the uprights, and the diagonal braces are bolted to the uprights.

[0003] The DTII series outriggers use bolted connections for the horizontal bracing (equilateral angle steel + steel plate, bolted to the two side uprights). The diagonal bracing connecting plates of the outriggers are welded to the two side uprights, and the diagonal bracings are bolted to the uprights.

[0004] The outriggers of the TD75 series adopt a fully welded structure, with the horizontal and diagonal braces fully welded to the two side uprights.

[0005] The outriggers of the 96 Coal Series have horizontal bracing connected by bolts (equilateral angle steel, with a single hole on one side for bolt connection to both upright legs). The diagonal bracing connecting plates of the outriggers are welded to both upright legs, and the diagonal bracing is bolted to the upright legs.

[0006] The structure of the above series, apart from its own components, has no pre-reserved positions or mounting holes for installing other equipment. On-site, it can only be connected to other equipment by welding.

[0007] The upright legs on both sides of the support legs need to be distinguished as left and right due to the need for diagonal brace connecting plates and cross brace connections. For a belt conveyor of the same width and height, there are two types of support legs. The left and right upright legs need to be divided into a total of 4 categories, which makes it impossible to produce batches.

[0008] 2. Manufacturing aspects: In addition to the connecting plates at the bottom of the left and right uprights that need to be welded to the foundation, the horizontal or diagonal braces also need to be welded. This results in a large amount of welding, high production costs, and a significant risk of environmental pollution.

[0009] 3. Shipping: Because the diagonal brace connecting plates are welded to the left and right upright legs, they are very inconvenient to pack during shipment, especially the TD75 series, which takes up a lot of space and has a light weight, resulting in high shipping costs and easy deformation during shipment.

[0010] 4. On-site installation: The left and right legs need to be distinguished and matched on-site. If the shipping and storage do not pay attention, it is extremely difficult to find the correct support legs on-site. Summary of the Invention

[0011] The purpose of this invention is to address the shortcomings of existing technologies and provide a support leg for a belt conveyor frame.

[0012] To achieve the above objectives, this utility model is implemented according to the following technical solution: A support leg for a belt conveyor frame includes a left vertical leg and a right vertical leg. The left and right vertical legs are made of L-shaped steel of the same size. An upper crossbeam is installed at the top of one side wall of each of the left and right vertical legs by bolts and nuts. The top of the upper crossbeam is used to install the upper idler frame of the belt conveyor, and the bottom is used to install the lower idler frame. A lower crossbeam is installed between the other side walls of the left and right vertical legs by bolts and nuts. Several mounting holes for other equipment are also provided on the two side walls of the left and right vertical legs in two rows distributed from top to bottom.

[0013] Furthermore, the top of each side wall of the left and right upright legs has two upper crossbeam connection holes distributed from top to bottom for installing the upper crossbeam. The upper crossbeam is made of U-shaped steel, and the side wall of the upper crossbeam has mounting holes that match the upper crossbeam connection holes. The lower middle part of each side wall of the left and right upright legs has two lower crossbeam connection holes distributed from top to bottom for installing the lower crossbeam. The lower crossbeam is made of L-shaped steel, and the two ends of one side wall of the lower crossbeam have symmetrical mounting holes that match the lower crossbeam connection holes.

[0014] Furthermore, foot plates are welded to the bottom of the left and right upright legs.

[0015] Furthermore, the bottom of the left and right upright legs and the upper crossbeam above them are connected by bolts and nuts to inclined supports.

[0016] Specifically, the diagonal support is made of angle steel, and the left and right ends of the diagonal support are completely symmetrical. Two parallel mounting holes are opened at each end of the two side walls of the diagonal support. Two inclined diagonal support connection holes corresponding to the two mounting holes of the diagonal support are opened on the side wall of the upper crossbeam. Two steel plate connection holes for installing steel plates are opened at the bottom of the two side walls of the left and right upright legs, distributed from top to bottom. One end of the steel plate has a mounting hole corresponding to the steel plate connection hole. The steel plate is connected to one side wall of the left and right upright legs by bolts and nuts. Two inclined diagonal support connection holes are opened at the other end of the steel plate. The steel plate is connected to one side wall of the diagonal support by bolts and nuts.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. Except for the base plate and the left and right uprights which are welded to the foundation, the rest of the structure of this utility model is bolted together; this reduces the amount of welding and processing in production and reduces the risk of environmental pollution.

[0018] 2. Multiple connection holes and other equipment mounting holes are machined on the left and right upright legs, such as: correction rollers, cable trays, protective devices, and protective equipment. The two types of support legs for belt conveyors of the same width and height have the same dimensions, which can be mass-produced to reduce manufacturing costs. Except for the left and right upright legs, which need to be welded after cutting, the rest of the parts are finished products after cutting. The workpieces can be packaged and shipped in about 30 to 40 minutes.

[0019] 3. Convenient for packaging and shipping, neatly packed, takes up little space, and reduces shipping costs.

[0020] 4. On-site installation, no need to distinguish between left and right types of support legs, ready to use, improving installation efficiency and reducing installation labor intensity. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the support leg of the belt conveyor frame according to one embodiment of the present invention.

[0022] Figure 2 for Figure 1 Side view of the support legs of the belt conveyor frame.

[0023] Figure 3 This is a schematic diagram of another embodiment of the present invention.

[0024] Figure 4 for Figure 3 Side view of the support legs of the belt conveyor frame.

[0025] Figure 5 for Figure 3 A schematic diagram of the steel plate structure. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. The specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the utility model. Example 1

[0027] like Figure 1 , Figure 2The diagram shows a belt conveyor frame support leg, including a left vertical leg (not labeled) and a right vertical leg 1. The left and right vertical legs 1 are made of L-shaped steel of the same size. Foot plates 2 are welded to the bottom of the left and right vertical legs 1. An upper crossbeam 4 is installed on the top of one side wall of each of the left and right vertical legs 1 using bolts and nuts 5. The top of the upper crossbeam 4 is used to install the upper idler frame 9 of the belt conveyor, and the bottom is used to install the lower idler frame 10. A lower crossbeam 6 is installed between the other side walls of the left and right vertical legs 1 using bolts and nuts 5. Several mounting holes 8 for other equipment are provided on the other side walls of the left and right vertical legs 1, arranged in two rows from top to bottom. These mounting holes 8 are used to install... : Correcting rollers, cable trays, protective devices, protective equipment, etc.; Specifically, two upper crossbeam connection holes 3, distributed from top to bottom, are opened at the top of the side walls of the left and right upright legs 1, to ensure that the upper crossbeams 4 can be installed on both side walls of the left and right upright legs 1. The upper crossbeams 4 are made of U-shaped steel, and the side walls of the upper crossbeams 4 are provided with mounting holes that match the upper crossbeam connection holes; two lower crossbeam connection holes 7, distributed from top to bottom, are opened in the lower middle part of the side walls of the left and right upright legs 1, to install the lower crossbeams 6. The lower crossbeams 6 are made of L-shaped steel, and the two ends of one side wall of the lower crossbeams 6 are symmetrically provided with mounting holes that match the lower crossbeam connection holes 7.

[0028] The left and right legs are exactly the same size, so there is no need to distinguish between left and right legs during on-site installation. They can be used immediately, improving installation efficiency and reducing labor intensity. Example 2

[0029] like Figure 3 , Figure 4 The main difference between the conveyor frame support legs shown in Embodiment 1 and Embodiment 2 is that: the bottom of the left and right upright legs 2 and the upper crossbeam 4 above them are connected by bolts and nuts 5 with inclined supports 12. For example, the angle between the inclined supports 12 and the left or right upright leg 2 is 45°. Specifically, the inclined supports 12 are made of angle steel, and the left and right ends of the inclined supports 12 are completely symmetrical. Two parallel mounting holes are opened at each end of the two side walls of the inclined supports 12. Two inclined support connection holes corresponding to the two mounting holes of the inclined supports 12 are opened on the side wall of the upper crossbeam 4. Two steel plate connection holes 801 distributed from top to bottom for installing steel plates 11 are opened at the bottom of the two side walls of the left and right upright legs 1, respectively. Figure 5 As shown, one end of the steel plate 11 is provided with an installation hole 1102 corresponding to the steel plate connection hole 801. The steel plate 11 is connected to one side wall of the left and right upright legs 2 by bolts and nuts 5. The other end of the steel plate 11 is provided with two inclined support connection holes 1101. The steel plate 11 is connected to one side wall of the inclined support 12 by bolts and nuts 5.

[0030] The left and right upright legs of this embodiment are interchangeable with those of Embodiment 1, and the installation of the diagonal support 12 does not require differentiation between left and right.

[0031] The technical solution of this utility model is not limited to the specific embodiments described above. All technical modifications made based on the technical solution of this utility model shall fall within the protection scope of this utility model.

Claims

1. A support leg for a belt conveyor frame, comprising a left upright leg and a right upright leg, characterized in that: The left and right upright legs are made of L-shaped steel of the same size. An upper crossbeam is installed on the top of one side wall of the left and right upright legs by bolts and nuts. The top of the upper crossbeam is used to install the upper idler frame of the belt conveyor, and the bottom is used to install the lower idler frame. A lower crossbeam is installed between the other side walls of the left and right upright legs by bolts and nuts. Several mounting holes for other equipment are also provided on the two side walls of the left and right upright legs in two rows from top to bottom.

2. The support leg of the belt conveyor frame according to claim 1, characterized in that: The top of each side wall of the left and right upright legs has two upper crossbeam connection holes arranged from top to bottom for installing the upper crossbeam. The upper crossbeam is made of U-shaped steel, and the side wall of the upper crossbeam has mounting holes that match the upper crossbeam connection holes. The lower middle part of each side wall of the left and right upright legs has two lower crossbeam connection holes arranged from top to bottom for installing the lower crossbeam. The lower crossbeam is made of L-shaped steel, and the two ends of one side wall of the lower crossbeam have symmetrical mounting holes that match the lower crossbeam connection holes.

3. The support leg of the belt conveyor frame according to claim 1, characterized in that: The bottom of the left and right upright legs is welded with foot plates.

4. The support leg of the belt conveyor frame according to any one of claims 1-3, characterized in that: The bottom of the left and right upright legs are connected to the upper crossbeam above them by bolts and nuts, with inclined supports arranged at an angle.

5. The support leg of the belt conveyor frame according to claim 4, characterized in that: The diagonal bracing is made of angle steel, and the left and right ends of the diagonal bracing are completely symmetrical. Two parallel mounting holes are opened at each end of the two side walls of the diagonal bracing. Two inclined diagonal bracing connection holes corresponding to the two mounting holes of the diagonal bracing are opened on the side wall of the upper crossbeam. Two steel plate connection holes for installing steel plates are opened at the bottom of the two side walls of the left and right upright legs, distributed from top to bottom. One end of the steel plate has a mounting hole corresponding to the steel plate connection hole. The steel plate is connected to one side wall of the left and right upright legs by bolts and nuts. Two inclined diagonal bracing connection holes are opened at the other end of the steel plate. The steel plate is connected to one side wall of the diagonal bracing by bolts and nuts.