Novel mining anchor rod tray

Abstract

The utility model discloses a novel mining anchor rod tray, which belongs to the technical field of mining anchor rod trays and comprises a limiting plate, buffer columns are uniformly fixed at the top of the limiting plate, adjusting rings are mounted on the outer sides of the buffer columns in a threaded manner, buffer covers are fixed at the bottoms of the adjusting rings, and buffer pads are fixed at the bottoms of the buffer covers. A movable plate is arranged on the outer side of the buffer column, a movable opening is formed in the joint of the movable plate and the buffer column, and the movable opening is movably connected with the buffer column. Through cooperative use of the limiting plate, the buffer column, the adjusting ring, the buffer cover, the buffer pad, the movable plate, the movable opening, the tray body, the buffer ring and the nut, when impact force such as deformation of a roadway is transmitted to the buffer cover, the buffer cover and an air cavity between the buffer cover and the buffer pad are used for counteracting part of the impact force respectively; and the problems of deformation, even breakage and the like of the limiting plate caused by impact are reduced, so that the practicability of the novel mining anchor rod tray is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mine bolt trays, in particular to a new type of mine bolt tray. Background Technique

[0002] At present, various bolt trays are widely used in the support engineering of mine roadways to reinforce the surrounding anchor nets, increase the contact area of support, and prevent the upper rocks from caving.

[0003] For example, the utility model with the application number 201521059504.7 discloses a bolt tray for mine roadway support engineering. The utility model is particularly suitable for roadways with large surrounding rock pressure, can effectively control the movement of nuts, has the ability to buffer and block flying nuts, and can protect the safety of underground personnel and equipment. At the same time, the utility model is convenient to process, simple in structure, and operable.

[0004] The similar applications mentioned above still have deficiencies:

[0005] The bolt tray for mine roadway support engineering protects the internal nuts through the outer tray cover. Although it has a protective effect, the bottom of the bolt tray for mine roadway support engineering is directly rigidly connected to the wall, with poor buffer and yielding capacity. When being squeezed, the tray will be deformed or even cracked, and the support effect cannot be guaranteed.

[0006] Therefore, a new type of mine bolt tray is designed to optimize the above problems. Content of the Utility Model

[0007] The main purpose of the utility model is to provide a new type of mine bolt tray to solve the related technical problems mentioned in the above background technique.

[0008] The purpose of the utility model can be achieved by adopting the following technical solutions:

[0009] A new type of mine bolt tray includes a limit plate. Buffer columns are uniformly fixed on the top of the limit plate. Adjusting rings are threadedly installed on the outer sides of the buffer columns. Buffer covers are fixed to the bottoms of the adjusting rings. Buffer pads are fixed to the bottoms of the buffer covers. An activity plate is arranged on the outer side of the buffer column. An activity opening is formed at the connection between the activity plate and the buffer column, and the activity opening is movably connected to the buffer column. A tray main body is fixed at the middle position of the activity plate. A nut is arranged on the top of the tray main body.

[0010] Preferably, an installation opening is formed at the middle position of the limit plate. A limit ring is fixed inside the installation opening. A fixing groove is formed at the top of the limit ring.

[0011] Preferably, the limiting ring is a rubber ring, and an anti-corrosion layer is provided on the outer side of the limiting ring.

[0012] Preferably, the fixing groove is a tapered groove, and a diversion hole is provided inside the fixing groove.

[0013] Preferably, the buffer covers are all conical covers, and the buffer covers are all rubber conical covers.

[0014] Preferably, a buffer ring is provided on the top of the tray body, and buffer particles are provided on the top of the buffer ring.

[0015] The beneficial effects of the present utility model are as follows:

[0016] A new type of mine bolt tray provided by the present utility model, through the combined use of a limiting plate, a buffer column, an adjusting ring, a buffer cover, a buffer pad, a movable plate, a movable opening, a tray body, a buffer ring and a nut, when the impact force such as the deformation of the roadway is transmitted to the buffer cover, part of the impact force can be offset by using the buffer cover and the air cavity between the buffer cover and the buffer pad respectively, reducing problems such as deformation or even fracture of the limiting plate caused by the impact, thereby improving the practicability of the new type of mine bolt tray;

[0017] Through the combined use of the installation opening, the limiting ring and the fixing groove, when the bolt is not perpendicular to the plane of the roadway wall, after the limiting plate and the movable plate are sleeved outside the bolt through the tray body and the buffer ring, the angle of the limiting plate is adjusted according to the angle of the bolt to make the limiting plate fit on the roadway wall. At the same time, the bolt is limited within the limiting ring under the action of the limiting ring and the fixing groove. In order for the movable plate to still be perpendicular to the bolt, it is necessary to rotate and adjust the positions of the adjusting ring and the buffer cover according to the included angle state between the movable plate and the limiting plate to limit the movable plate, so that the space between the limiting plate and the movable plate fills the gap between the movable plate and the roadway wall, maintaining the support effect on the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the front view cross-sectional view of the present utility model;

[0019] Figure 2 is the Figure 1 enlarged view of the structure at A in the present utility model;

[0020] Figure 3 is the schematic diagram of the non-perpendicular installation state of the bolt of the present utility model;

[0021] Figure 4 is the schematic diagram of the movable plate of the present utility model.

[0022] In the figure: 1. Limit plate; 2. Buffer column; 3. Adjusting ring; 4. Buffer cover; 5. Buffer pad; 6. Movable plate; 7. Movable opening; 8. Tray body; 9. Buffer ring; 10. Nut; 11. Installation opening; 12. Limit ring; 13. Fixed groove. Detailed implementation mode

[0023] To make the technical personnel in this technical field more clear and definite about the technical solution of the present utility model, the present utility model will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the implementation modes of the present utility model are not limited thereto.

[0024] Embodiment 1

[0025] As Figures 1-4 shown, this embodiment provides a new type of mine bolt tray, including a limit plate 1. Buffer columns 2 are uniformly fixed on the top of the limit plate 1. Adjusting rings 3 are threadedly installed on the outer sides of the buffer columns 2. Buffer covers 4 are fixed to the bottoms of the adjusting rings 3. Buffer pads 5 are fixed to the bottoms of the buffer covers 4. A movable plate 6 is arranged on the outer side of the buffer column 2. A movable opening 7 is formed at the connection between the movable plate 6 and the buffer column 2, and the movable opening 7 is movably connected to the buffer column 2. A tray body 8 is fixed at the middle position of the movable plate 6. A nut 10 is arranged on the top of the tray body 8. An installation opening 11 is formed at the middle position of the limit plate 1. A limit ring 12 is fixed inside the installation opening 11. A fixed groove 13 is formed at the top of the limit ring 12.

[0026] The movable plate 6 is sequentially installed on the outer side of the buffer column 2 through the movable opening 7, and then the adjusting ring 3 is screwed and installed on the outer side of the buffer column 2. The buffer column 2 drives the adjusting ring 3 to move to limit the top and bottom positions of the movable plate 6. The limit plate 1 fits against the roadway wall. At the same time, the tray body 8 and the buffer ring 9 are sleeved on the outer side of the bolt. The limit plate 1 is fixed on the roadway wall by using the nut 10. When one corner or one side of the limit plate 1 is subjected to pressure, it will move outward, causing the limit plate 1 to push the corresponding buffer column 2 to move until the buffer cover 4 on the outer side of the buffer column 2 deforms, or the buffer cover 4 directly passes through the movable opening 7 and moves to the bottom of the limit plate 1. When the bolt is not perpendicular to the plane of the roadway wall, after the limit plate 1 and the movable plate 6 are sleeved on the outer side of the bolt through the tray body 8 and the buffer ring 9, the angle of the limit plate 1 is adjusted according to the angle of the bolt to make the limit plate 1 fit against the roadway wall. At the same time, the bolt is limited within the limit ring 12 under the action of the limit ring 12 and the fixed groove 13. In order for the movable plate 6 to still be perpendicular to the bolt, it is necessary to rotate and adjust the positions of the adjusting ring 3 and the buffer cover 4 according to the included angle state between the movable plate 6 and the limit plate 1 to limit the movable plate 6, so that the space between the limit plate 1 and the movable plate 6 fills the gap between the movable plate 6 and the roadway wall.

[0027] Embodiment 2

[0028] In this embodiment, as Figures 1-4 shown, the limiting ring 12 is a rubber ring, and an anti-corrosion layer is provided on the outer side of the limiting ring 12.

[0029] The rubber limiting ring 12 makes it easy to deform according to the deformation of the bolt, adapting to the bolt. At the same time, the anti-corrosion layer has a better protection effect on the environment underground in the coal mine.

[0030] In this embodiment, the fixing groove 13 is set as a conical groove, and a diversion hole is opened inside the fixing groove 13.

[0031] Due to the conical groove, when the bolt presses the limiting ring 12, the inner wall of the fixing groove 13 is more likely to fit, and the bottom is not easily broken by extrusion. The diversion hole can make the water in the roadway flow out, reducing water accumulation.

[0032] In this embodiment, the buffer covers 4 are all set as conical covers, and the buffer covers 4 are all rubber conical covers.

[0033] The rubber conical buffer cover 4 enables the buffer cover 4 to have a certain deformation elasticity, improving the buffering effect.

[0034] In this embodiment, a buffer ring 9 is provided on the top of the tray body 8, and buffer particles are provided on the top of the buffer ring 9.

[0035] The setting of the buffer ring 9 and the buffer particles increases the buffering force between the top of the tray body 8 and the bottom of the nut 10, slowing down the friction between the tray body 8 and the nut 10 and improving the installation firmness at the same time.

[0036] The above is only a further embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the scope disclosed by the present invention, according to the technical solution and its concept of the present invention, makes equivalent substitutions or changes, all belong to the protection scope of the present invention.

Claims

1. A new type of anchor tray for mining, characterized by: The invention comprises a limit plate (1), a buffer column (2) is evenly fixed on the top of the limit plate (1), an adjustment ring (3) is threadedly installed on the outer side of the buffer column (2), a buffer cover (4) is fixed on the bottom of the adjustment ring (3), a buffer pad (5) is fixed on the bottom of the buffer cover (4), a movable plate (6) is arranged on the outer side of the buffer column (2), a movable opening (7) is provided at the connection between the movable plate (6) and the buffer column (2), and the movable opening (7) is movably connected to the buffer column (2), a tray body (8) is fixed at the middle position of the movable plate (6), and a nut (10) is arranged on the top of the tray body (8).

2. A new type of anchor pallet for mining according to claim 1, characterized in that: A mounting opening (11) is provided in the middle of the limiting plate (1), a limiting ring (12) is fixed inside the mounting opening (11), and a fixing groove (13) is provided at the top of the limiting ring (12).

3. A new type of anchor pallet for mining according to claim 2, characterized in that: The limiting ring (12) is a rubber ring, and an anti-corrosion layer is arranged on the outer side of the limiting ring (12).

4. A new type of anchor pallet for mining according to claim 2, characterized in that: The fixing groove (13) is configured as a conical groove, and a flow guide hole is provided inside the fixing groove (13).

5. The new type of anchor pallet for mining according to claim 1 is characterized by: The buffer covers (4) are all configured as conical covers, and the buffer covers (4) are all rubber conical covers.

6. The new type of anchor tray for mining according to claim 1 is characterized by: A buffer ring (9) is arranged on the top of the tray body (8), and buffer particles are arranged on the top of the buffer ring (9).

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