Curved surface structural steel for anchor cable

Abstract

The utility model discloses curved surface structural steel for anchor cables, which belongs to the field of structural steel and comprises a truss support beam, a curved surface groove is arranged on the upper surface of the truss support beam, hole grooves are arranged at two ends of the upper surface of the truss support beam, anchor cables are inserted into the hole grooves, and a support plate is clamped on the inner side wall of the truss support beam. Through cooperative use of all the devices, the supporting device is simple in structure and convenient and fast to use and can play an effective supporting and protecting role in supporting of a coal mine roadway through the overall design, the truss supporting beam is of a pi-shaped steel structure, the sizing size is finally optimized according to the energy technology center, and the supporting effect is good. The curved surface structural steel can achieve more uniform stress distribution and reduce local stress concentration, so that the overall stability is improved, the anchor cable can better adapt to irregular and complex supporting environments, in addition, the curved surface can promote water flow to be discharged along a natural path, erosion of water to the anchor cable and the supporting structure is relieved, and durability is improved.

Description

Technical Field

[0001] This utility model relates to the field of structural steel technology, specifically a curved structural steel for anchor cables. Background Technology

[0002] Structural steel is a type of steel widely used in construction and civil engineering. It is mainly used for load-bearing and supporting structures. It has high strength and good toughness, and can be used in various environments. It is suitable for multiple applications such as buildings, bridges, and tunnels. In coal mine roadway support, the mine owner selects the appropriate truss support device configuration according to the support design of the mine.

[0003] In existing coal mine roadway support systems, the structural steel used for support is all planar. However, planar support has poor effectiveness and strength, making it difficult to adjust the structural steel to a curved surface to improve the strength and effectiveness of the support.

[0004] Therefore, this utility model provides a curved structural steel for anchor cables to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides a curved structural steel for anchor cables, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a curved structural steel for anchor cables, comprising a truss support beam, wherein a curved groove is formed on the upper surface of the truss support beam, and slots are formed at both ends of the upper surface of the truss support beam, wherein an anchor cable is inserted into the slots, a support plate is clamped to the inner side wall of the truss support beam, a self-aligning ball pad is inserted into the bottom of the outer surface of the anchor cable near the support plate, and an anchor is inserted into the bottom of the outer surface of the anchor cable near the self-aligning ball pad.

[0009] As a preferred technical solution of this application, the height of the truss support beam is 83±2mm and the width of the truss support beam is 180±2mm.

[0010] As a preferred technical solution of this application, the tray has an anchor cable hole in the middle, and the anchor cable hole is designed as a spherical countersunk hole that matches the outer spherical surface of the self-aligning ball pad.

[0011] As a preferred technical solution of this application, the length of the tray is 200mm, the height is 20mm, and the maximum width of the tray is 127mm.

[0012] As a preferred technical solution of this application, the self-aligning ball pad is designed as a hemispherical structure according to the φ22mm anchor diameter, with a central through hole of φ25mm, a ball pad radius of SR30mm, and a ball center circle of φ60mm, which is compatible with the outer cylinder diameter of the anchor cable and anchor, and is mainly matched with φ22 specification anchor cables.

[0013] (III) Beneficial Effects

[0014] This utility model has a simple structure and is easy to use. In the support of coal mine roadways, the overall design of this utility model can play an effective supporting and protective role. The truss support beam adopts a π-shaped steel structure. According to the final optimized size of the Energy Technology Center, the curved steel structure can achieve a more uniform stress distribution, reduce local stress concentration, and thus improve overall stability. It can better adapt to irregular and complex support environments. In addition, the curved surface can promote water flow to drain along the natural path, reduce water erosion on anchor cables and support structures, and improve durability. Attached Figure Description

[0015] Figure 1 A schematic diagram of a curved structural steel for anchor cables;

[0016] Figure 2 This is a schematic diagram of the installation of a support plate in a curved steel structure for anchor cables;

[0017] Figure 3 This is a cross-sectional schematic diagram of an anchor cable in a curved structural steel structure for anchor cables;

[0018] Figure 4 This is a cross-sectional schematic diagram of a truss support beam in a curved steel structure for anchor cables.

[0019] In the diagram: 1. Truss support beam; 2. Anchor cable; 3. Support plate; 4. Self-aligning ball pad; 5. Anchor. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] This utility model provides a curved structural steel for anchor cables, such as... Figures 1-4As shown, this type of curved steel structure for anchor cables includes a truss support beam 1. A curved groove is formed on the upper surface of the truss support beam 1, and slots are formed at both ends of the upper surface of the truss support beam 1. Anchor cables 2 are inserted into the slots, and a support plate 3 is clamped to the inner wall of the truss support beam 1. A self-aligning ball pad 4 is inserted into the bottom of the outer surface of the anchor cable 2 near the bottom of the support plate 3, and an anchor 5 is inserted into the bottom of the outer surface of the anchor cable 2 near the bottom of the self-aligning ball pad 4. In the support of coal mine roadways, the overall design of this utility model can effectively support and protect the roadway. The truss support beam 1 adopts a π-shaped steel structure, and according to the final optimized dimensions determined by the Energy Technology Center, the curved steel structure can achieve a more uniform stress distribution, reduce local stress concentration, thereby improving overall stability and better adapting to irregular and complex support environments. In addition, the curved surface can promote water flow along a natural path, reducing water erosion on the anchor cables 2 and the support structure, and improving durability.

[0022] The height of truss support beam 1 is 83±2mm, and the width of truss support beam 1 is 180±2mm.

[0023] An anchor cable hole is provided in the middle of the support plate 3. The anchor cable hole is designed as a spherical countersunk hole that matches the outer spherical surface of the self-aligning ball pad 4. The anchor cable hole is machined in the middle. In order to realize the inclined installation of the anchor cable 2, it is designed as a spherical countersunk hole that matches the outer spherical surface of the self-aligning ball pad 4. Then, the self-aligning ball pad 4 is installed at the bottom of the support plate 3.

[0024] The length of the support plate 3 is 200mm, the height is 20mm, and the maximum width of the support plate 3 is 127mm. The support plate 3 is snapped onto the inner wall of the truss support beam 1, and the outer edge is basically matched with the internal space of the vertical plate of the truss support beam 1, so as to achieve overall contact with the truss support beam 1.

[0025] The self-aligning ball pad 4 is designed as a hemispherical structure based on the diameter of the φ22mm anchor 5. The central through hole is designed to be φ25mm, the ball pad radius is SR30mm, and the center circle is φ60mm, which is compatible with the outer cylindrical diameter of the anchor cable 5. It is mainly matched with the φ22 specification anchor cable 2. When the anchor 5 is screwed onto the bottom of the self-aligning ball pad 4, the truss support beam 1 can be abutted and locked, making it more firmly fixed. The truss support beam 1 is in direct contact with the surrounding rock, and the self-aligning ball pad 4 is in contact with the anchor 5, transmitting the tension of the anchor cable 2.

[0026] Specifically, during the installation of the support structure, anchor cables are drilled according to the support design. Holes are drilled on the truss support beam 1 according to the length and hole diameter. After drilling, anchor cables 2 are installed on the truss support beam 1, and then support plates 3 are installed on the anchor cables 2. Pushing upwards, the support plates 3 are engaged with the inner wall of the truss support beam 1, with the outer edge basically matching the internal space of the vertical plate of the truss support beam 1, achieving overall contact with the truss support beam 1. Anchor cable holes are machined in the middle for... Anchor cable 2 is installed at an angle, designed with a spherical countersunk hole that matches the outer spherical surface of self-aligning ball pad 4. Then, self-aligning ball pad 4 is installed at the bottom of support plate 3. Subsequently, anchor 5 is screwed onto the bottom of self-aligning ball pad 4, which can hold the truss support beam 1 against and secure it more firmly. The truss support beam 1 is in direct contact with the surrounding rock, and self-aligning ball pad 4 is in contact with anchor 5, transmitting the tension of anchor cable 2. After installation, anchor cable 2 is tensioned according to the specified value to complete the truss support installation.

[0027] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A curved structural steel for anchor cables, comprising a truss support beam (1), characterized in that: The upper surface of the truss support beam (1) is provided with a curved groove. Both ends of the upper surface of the truss support beam (1) are provided with slots. Anchor cables (2) are inserted into the slots. A support plate (3) is attached to the inner side wall of the truss support beam (1). A self-aligning ball pad (4) is inserted into the outer surface of the anchor cable (2) near the bottom of the support plate (3). An anchor (5) is inserted into the outer surface of the anchor cable (2) near the bottom of the self-aligning ball pad (4).

2. The curved structural steel for anchor cables according to claim 1, characterized in that: The height of the truss support beam (1) is 83±2mm, and the width of the truss support beam (1) is 180±2mm.

3. The curved structural steel for anchor cables according to claim 1, characterized in that: An anchor cable hole is provided in the middle of the support plate (3). The anchor cable hole is designed as a spherical countersunk hole that matches the outer spherical surface of the self-aligning ball pad (4).

4. The curved structural steel for anchor cables according to claim 1, characterized in that: The length of the tray (3) is 200mm, the height is 20mm, and the maximum width of the tray (3) is 127mm.

5. The curved structural steel for anchor cables according to claim 1, characterized in that: The self-aligning ball pad (4) is designed as a hemispherical structure according to the diameter of the φ22mm anchor (5), with a central through hole of φ25mm, a ball pad radius of SR30mm, and a ball center circle of φ60mm, which is compatible with the outer cylinder diameter of the anchor cable (5) and is mainly matched with the φ22 specification anchor cable (2).

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