Anchor rod self-aligning circular tray

Abstract

The utility model relates to the field of coal mine support, and discloses an anchor rod self-aligning circular tray which comprises a tray body, a five-star arching face is arranged on the upper surface of the tray body, a connecting groove is formed in the middle of the five-star arching face, an aligning ball head is embedded in the connecting groove and matched with a ball head at the top of an anchor rod, and the anchor rod is arranged in the connecting groove. According to the self-aligning anchor rod, the self-aligning ball head is arranged, the ball head is matched with the ball head at the top of the anchor rod to form a physical characteristic of spherical surface contact and spherical surface matching, so that when the anchor rod is subjected to lateral force, the position can be automatically adjusted through rotation of the ball head, and therefore the anchor rod is kept vertical; the position of the anchor rod can be automatically adjusted in the installation process, the installation efficiency and precision of the anchor rod are greatly improved, the workload of manual adjustment is reduced, the contact area of the tray and the rock surface is increased through the five-star arched face, local pressure concentration is reduced, and therefore the stability of a supporting structure is improved.

Description

Technical Field

[0001] The utility model relates to the field of coal mine support, in particular to an anchor rod self-aligning circular tray. Background Art

[0002] The anchor rod self-aligning circular tray is a component in the coal mine tunnel support system. Its main function is to be used in conjunction with the anchor rod to achieve the stability of the tunnel surrounding rock.

[0003] Deep coal mining currently faces challenges such as increased stress concentration and severe floor deformation. Constructing wedge-shaped anchors at the bottom corners requires deploying large-angle anchor cables. However, this conflicting requirement for rod straightness and the need for the tray to closely adhere to the rock surface prevents conventional trays from bending and shearing due to uneven stress, resulting in a loss of support effectiveness. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an anchor rod self-aligning circular tray, which solves the safety problem.

[0005] To achieve the above purpose, the utility model is implemented through the following technical solutions: a self-aligning circular pallet for an anchor rod, comprising a pallet body, the upper surface of the pallet body is provided with a five-star arched surface, the middle of the five-star arched surface is provided with a connecting groove, the interior of the connecting groove is embedded with a self-aligning ball head, the self-aligning ball head cooperates with the ball head at the top of the anchor rod, so that the anchor rod automatically adjusts its position during the installation process to ensure the verticality of the anchor rod, the outer side of the self-aligning ball head is fixedly connected to a pallet ball head pad, and the inner edge surface of the connecting groove is provided with an anti-slip inclined surface.

[0006] Preferably, a ball head removal assembly is provided on the lower surface of the tray body, and the ball head removal assembly includes a movable rod, a retaining ring, a hammer removal block, a protective pad and an arch pad, and the hammer removal block is provided below the connecting groove.

[0007] Preferably, an arch pad is fixedly connected to the upper surface of the hammer demolition block, and a protective pad is fixedly connected to the lower surface of the hammer demolition block.

[0008] Preferably, movable rods are fixedly connected to the left and right sides of the upper surface of the hammer demolition block, and the upper ends of the two movable rods pass through the five-star arched surface.

[0009] Preferably, the upper ends of the two movable rods are fixedly connected with retaining rings, and the two retaining rings are respectively fitted on the upper surface of the five-star arched surface.

[0010] Preferably, a hollow raised portion is provided below the tray body.

[0011] Beneficial effects

[0012] The utility model provides a self-aligning circular tray for anchor rods. Compared with the existing technology, it has the following advantages:

[0013] Beneficial effects:

[0014] 1. In the present invention, a self-aligning ball head is provided, which cooperates with the ball head at the top of the anchor rod to form a spherical contact. The physical characteristics of the spherical cooperation enable the anchor rod to automatically adjust its position by rotating the ball head when subjected to lateral force, thereby maintaining verticality. The anchor rod can automatically adjust its position during installation, greatly improving the installation efficiency and accuracy of the anchor rod and reducing the workload of manual adjustment. In addition, the five-star arch surface increases the contact area between the tray and the rock surface, disperses the pressure of the anchor rod on the rock surface, reduces local pressure concentration, and thus improves the stability of the support structure.

[0015] 2. In the utility model, by providing a ball head removal assembly, when the anchor rod needs to be removed, the hammer removal block is placed under the connecting groove so that the arch pad on its upper surface corresponds to the self-aligning ball head, and the operator uses a hammer or other tool to knock on the hammer removal block. Since the arch pad on the upper surface of the hammer removal block is in close contact with the self-aligning ball head, the knocking force is transmitted to the self-aligning ball head through the arch pad, so that the self-aligning ball head is separated from the ball head at the top of the anchor rod. The protective pad on the lower surface of the hammer removal block is used to protect the anchor rod and the tray body from damage during the removal process. The ball head removal assembly makes the removal process of the anchor rod simple and quick, and reduces the time and labor intensity of the removal operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of a self-aligning circular tray for anchor rods proposed in the utility model;

[0017] Figure 2 This is a structural schematic diagram of a pallet ball head pad in a self-aligning circular pallet for anchor rods proposed by the utility model;

[0018] Figure 3 This is a top view of a self-aligning circular tray for anchor rods proposed in the utility model;

[0019] Figure 4 This is a cross-sectional view of an anchor rod self-aligning circular tray proposed by the utility model.

[0020] Legend:

[0021] 1. Pallet body; 2. Pallet ball head pad; 3. Self-aligning ball head; 4. Hollow raised part; 5. Five-star arched surface; 6. Connecting groove; 7. Anti-slip inclined surface; 8. Ball head removal assembly; 801. Movable rod; 802. Retaining ring; 803. Hammer removal block; 804. Protective pad; 805. Arch pad. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figure 1-Figure 4 , the utility model provides two technical solutions, specifically including the following embodiments:

[0024] Example 1:

[0025] A self-aligning circular pallet for anchor rods includes a pallet main body 1. A five-star arched surface 5 is provided on the upper surface of the pallet main body 1. A connecting groove 6 is provided in the middle of the five-star arched surface 5. A self-aligning ball head 3 is embedded in the interior of the connecting groove 6. The self-aligning ball head 3 cooperates with the ball head on the top of the anchor rod so that the anchor rod can automatically adjust its position during installation to ensure the verticality of the anchor rod. A pallet ball head pad 2 is fixedly connected to the outer side of the self-aligning ball head 3. An anti-slip inclined surface 7 is provided on the inner edge surface of the connecting groove 6. The pallet main body 1 has no sharp edges and is suitable for installation at more angles. It is not only convenient for transportation and storage, but also can effectively avoid mechanical damage caused by edges and corners, thereby reducing safety hazards in on-site operations.

[0026] During operation, the ball head cooperates with the ball head at the top of the anchor rod to form a spherical contact. The physical properties of the spherical cooperation enable the anchor rod to automatically adjust its position by rotating the ball head when subjected to lateral force, thereby maintaining verticality. The anchor rod can automatically adjust its position during the installation process, which greatly improves the installation efficiency and accuracy of the anchor rod and reduces the workload of manual adjustment. In addition, the five-star arch surface 5 increases the contact area between the tray and the rock surface, disperses the pressure of the anchor rod on the rock surface, reduces local pressure concentration, and thus improves the stability of the support structure.

[0027] Example 2:

[0028] On the basis of embodiment 1, a ball head removal assembly 8 is provided on the lower surface of the tray body 1, and the ball head removal assembly 8 includes a movable rod 801, a retaining ring 802, a hammer removal block 803, a protective pad 804 and an arch pad 805. The hammer removal block 803 is arranged below the connecting groove 6, and the upper surface of the hammer removal block 803 is fixedly connected to the arch pad 805, and the lower surface of the hammer removal block 803 is fixedly connected to the protective pad 804. The left and right sides of the upper surface of the hammer removal block 803 are fixedly connected to the movable rod 801, and the upper ends of the two movable rods 801 pass through the five-star arched surface 5. The upper ends of the two movable rods 801 are fixedly connected to the retaining ring 802, and the two retaining rings 802 are respectively fitted on the upper surface of the five-star arched surface 5. A hollow ridge 4 is provided under the tray body 1. The hollow ridge 4 provided under the tray body 1, on the one hand, reduces the overall weight of the tray and facilitates transportation, and on the other hand, provides space for the removal operation and facilitates the intervention of tools;

[0029] When the anchor rod needs to be removed, the hammer removal block 803 is placed under the connecting groove 6 so that the arch pad 805 on its upper surface corresponds to the self-aligning ball head 3. The operator uses a hammer or other tools to knock on the hammer removal block 803. Since the arch pad 805 on the upper surface of the hammer removal block 803 is in close contact with the self-aligning ball head 3, the knocking force is transmitted to the self-aligning ball head 3 through the arch pad 805, so that the self-aligning ball head 3 is separated from the ball head at the top of the anchor rod. The protective pad 804 on the lower surface of the hammer removal block 803 is used to protect the anchor rod and the tray body 1 from damage during the removal process. The ball head removal assembly 8 makes the removal process of the anchor rod simple and quick, reducing the time and labor intensity of the removal operation.

[0030] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the scope of protection of the present application.

Claims

1. An anchor rod self-aligning circular pallet, comprising a pallet body (1), characterized in that: The upper surface of the tray body (1) is provided with a five-star arched surface (5), the middle of the five-star arched surface (5) is provided with a connecting groove (6), the interior of the connecting groove (6) is embedded with a self-aligning ball head (3), the self-aligning ball head (3) cooperates with the ball head at the top of the anchor rod, so that the anchor rod automatically adjusts its position during installation to ensure the verticality of the anchor rod, the outer side of the self-aligning ball head (3) is fixedly connected with a tray ball head pad (2), and the inner edge surface of the connecting groove (6) is provided with an anti-slip inclined surface (7).

2. The anchor rod self-aligning circular pallet according to claim 1, characterized in that: A ball head removal assembly (8) is provided on the lower surface of the tray body (1), the ball head removal assembly (8) comprising a movable rod (801), a retaining ring (802), a hammer removal block (803), a protective pad (804) and an arch pad (805), and the hammer removal block (803) is provided below the connecting groove (6).

3. The anchor rod self-aligning circular pallet according to claim 2, characterized in that: An arch pad (805) is fixedly connected to the upper surface of the hammer demolition block (803), and a protection pad (804) is fixedly connected to the lower surface of the hammer demolition block (803).

4. The anchor rod self-aligning circular pallet according to claim 2, characterized in that: The left and right sides of the upper surface of the hammer demolition block (803) are fixedly connected with movable rods (801), and the upper ends of the two movable rods (801) pass through the five-star arched surface (5).

5. The anchor rod self-aligning circular pallet according to claim 4, characterized in that: The upper ends of the two movable rods (801) are fixedly connected with retaining rings (802), and the two retaining rings (802) are respectively arranged on the upper surface of the five-star arched surface (5).

6. The anchor rod self-aligning circular pallet according to claim 1, characterized in that: A hollow raised portion (4) is provided below the tray body (1).

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