CN221002819U - Impact-resistant energy-absorbing laminated rubber anchor rod tray - Google Patents

Impact-resistant energy-absorbing laminated rubber anchor rod tray Download PDF

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Publication number
CN221002819U
CN221002819U CN202322909567.8U CN202322909567U CN221002819U CN 221002819 U CN221002819 U CN 221002819U CN 202322909567 U CN202322909567 U CN 202322909567U CN 221002819 U CN221002819 U CN 221002819U
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tray
flat plate
anchor rod
rubber
plate tray
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CN202322909567.8U
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王盼
谷拴成
任翔
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Xian University of Science and Technology
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Xian University of Science and Technology
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Abstract

The utility model discloses an anti-impact energy-absorbing laminated rubber anchor rod tray which comprises a bottom flat plate tray, a top flat plate tray and an anti-impact energy-absorbing buffer structure, wherein the bottom flat plate tray, the anti-impact energy-absorbing buffer structure and the top flat plate tray are sequentially sleeved on an anchor rod, the anti-impact energy-absorbing buffer structure is laminated rubber formed by alternately laminating and vulcanizing a plurality of rigid layers and a plurality of rubber layers, a lock nut is arranged on the anchor rod in a threaded manner, the lock nut is positioned above the top flat plate tray, and a rigid gasket is arranged between the top flat plate tray and the lock nut. The utility model has reasonable structural design and wide application range, and the laminated rubber formed by the staggered lamination and vulcanization of the plurality of rigid layers and the plurality of rubber layers is arranged between the bottom flat plate tray and the top flat plate tray, so that the laminated rubber can adapt to the deformation of surrounding rock in the horizontal direction and the vertical direction, simultaneously maintains the original energy absorption supporting function under the action of repeated disturbance shock waves, and can effectively reduce the damage rate of the anchor rods and the trays.

Description

Impact-resistant energy-absorbing laminated rubber anchor rod tray
Technical Field
The utility model belongs to the technical field of anchor rod trays, and particularly relates to an anti-impact energy-absorbing laminated rubber anchor rod tray.
Background
Rock burst is a dynamic disaster in which strain energy accumulated in coal and rock bodies of a mining roadway is suddenly released, so that strong vibration is generated, and the coal and rock bodies are severely damaged. With the gradual exhaustion of shallow resources, mineral resource exploitation is gradually turned to deep, the stress state of surrounding rock becomes more and more complicated due to deep high ground stress environment and complex structural stress, and the intensity and frequency of rock burst of a coal mine are remarkably increased. The anchor rod is a supporting structure commonly used in coal mine roadway support, so that surrounding rocks are reinforced together, and the self-bearing capacity of the surrounding rocks is improved. The anchor rod tray is used as an important part in an anchor rod supporting system, and the performance of the anchor rod tray directly influences the supporting effect of an anchor rod.
The existing anchor rod tray has some defects in the using process. The anchor bolt support can not be well adapted to surrounding rock deformation, the anchor bolt tray has poor yielding and horizontal deformation capability, particularly, in the later stage of support, the surrounding rock is damaged, so that the large-area anchor bolt is invalid, and the energy absorption capability of most energy absorption trays is reduced along with the increase of the utilization rate. Aiming at the existing problems, some domestic experts have improved the original anchor rod tray, and Chinese patent publication No. CN 205638510U discloses an anchor rod yielding tray device, and the combination devices of an upper bearing plate, a yielding plate (in a corrugated shape), a lower bearing plate and the like solve the defects of insufficient deformation and yielding capability of the traditional anchor rod tray, but the device has higher requirement on the toughness of the yielding plate and can not provide horizontal deformation; the chinese patent with publication number CN 206035513U discloses a yielding tray based on truncated cone helical compression springs, which solves the problems of poor adaptive deformation capability, no yielding property or poor yielding capability of the tray by installing a plurality of truncated cone helical compression springs between a rear tray and a front tray, but the spring device is easy to be unstable when receiving horizontal shearing force, and as the truncated cone helical compression springs are adopted, when the loaded load is gradually increased, the spring rings start to appear and die (i.e. are combined and blocked) from the large ring, so that energy absorption cannot be repeated; the Chinese patent with the publication number of CN 205714235U discloses a yielding anchor rod tray, solves the problem that the anchor rod is damaged by shearing due to improper installation angle through devices such as an anchor rod, a hexagon nut at the tail of the anchor rod, a hemispherical hinge, a tray, rubber particle concrete and the like, slows down surrounding rock disturbance deformation and absorbs the deformation potential energy of the surrounding rock, but the rubber particle concrete has higher rigidity and limited yielding capability. In order to better adapt to surrounding rock deformation and simultaneously maintain the original energy-absorbing support function under the action of repeated disturbance shock waves, a shock-proof energy-absorbing laminated rubber anchor rod tray is required to be provided.
Disclosure of utility model
The utility model aims to solve the technical problems in the prior art, and provides the impact-resistant energy-absorbing laminated rubber anchor rod tray which is reasonable in structural design, and laminated rubber formed by alternately laminating and vulcanizing a plurality of rigid layers and a plurality of rubber layers is arranged between a bottom flat plate tray and a top flat plate tray, so that the laminated rubber can adapt to deformation of surrounding rock in the horizontal direction and the vertical direction, and meanwhile, the original energy-absorbing support function is maintained under the action of repeated disturbance shock waves, and the damage rate of the anchor rod and the tray can be effectively reduced.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a scour protection energy-absorbing stromatolite rubber stock tray which characterized in that: including bottom flat tray, top flat tray and the scour protection energy-absorbing buffer structure of setting between bottom flat tray and top flat tray, bottom flat tray, scour protection energy-absorbing buffer structure and top flat tray are established on the stock by supreme cover in proper order down, scour protection energy-absorbing buffer structure is the lamination rubber that is formed by a plurality of rigidity layers and a plurality of rubber layer crisscross coincide vulcanization, lock nut is installed to the screw thread on the stock, lock nut is located the top of top flat tray, be provided with the rigidity packing ring between top flat tray and the lock nut.
Foretell a scour protection energy-absorbing stromatolite rubber stock tray, its characterized in that: the number of the rigid layers is equal to that of the rubber layers, one layer of the anti-impact energy-absorbing buffer structure, which is close to the bottom flat plate tray, is a rigid layer, and one layer of the anti-impact energy-absorbing buffer structure, which is close to the top flat plate tray, is a rubber layer.
Foretell a scour protection energy-absorbing stromatolite rubber stock tray, its characterized in that: the centers of the bottom flat plate tray, the rigid layer, the rubber layer, the top flat plate tray and the rigid gasket are provided with anchor rod perforations for the anchor rods to penetrate.
Foretell a scour protection energy-absorbing stromatolite rubber stock tray, its characterized in that: the aperture of the anchor rod perforation on the bottom flat plate tray is larger than the diameter of the anchor rod.
Foretell a scour protection energy-absorbing stromatolite rubber stock tray, its characterized in that: the bottom flat tray, the top flat tray and the rigid layer are square steel plates, the rigid gasket is a round steel plate, and the rubber layer is square.
Foretell a scour protection energy-absorbing stromatolite rubber stock tray, its characterized in that: the bottom flat plate tray, the anti-impact energy-absorbing buffer structure, the top flat plate tray and the rigid gasket are all coaxially arranged with the anchor rod.
Compared with the prior art, the utility model has the following advantages:
1. According to the utility model, the anti-impact energy-absorbing buffer structure is arranged between the bottom flat plate tray and the top flat plate tray, so that the anti-impact energy-absorbing buffer structure can better adapt to surrounding rock deformation, and plays a role in buffering and yielding and repeated energy absorption.
2. According to the utility model, laminated rubber formed by alternately laminating and vulcanizing the plurality of rigid layers and the plurality of rubber layers is used as a shock-proof energy-absorbing buffer structure, so that the laminated rubber can adapt to deformation of surrounding rocks in the horizontal direction and the vertical direction, the original energy-absorbing support function is maintained under the action of repeated disturbance shock waves, the damage rate of an anchor rod and a tray can be effectively reduced, and various laminated rubber trays with different characteristics can be manufactured by adjusting the layers of the rigid layers and the rubber layers so as to adapt to the deformation characteristics of different surrounding rocks, and the laminated rubber tray has a wide application range.
In summary, the utility model has reasonable structural design and wide application range, and the laminated rubber formed by the staggered lamination and vulcanization of the plurality of rigid layers and the plurality of rubber layers is arranged between the bottom flat plate tray and the top flat plate tray, so that the laminated rubber can adapt to the deformation of surrounding rock in the horizontal direction and the vertical direction, simultaneously maintains the original energy absorption support function under the action of repeated disturbance shock waves, and can effectively reduce the damage rate of the anchor rods and the trays.
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a schematic structural view of the bolt of the present utility model after deformation.
Reference numerals illustrate:
1-a bottom flat tray; 2-a rigid layer; 3-a rubber layer;
4-top flat tray; 5-a rigid gasket; 6, locking the nut;
7-anchor rod.
Detailed Description
As shown in fig. 1 to 3, the utility model comprises a bottom flat plate tray 1, a top flat plate tray 4 and an anti-impact energy-absorbing buffer structure arranged between the bottom flat plate tray 1 and the top flat plate tray 4, wherein the bottom flat plate tray 1, the anti-impact energy-absorbing buffer structure and the top flat plate tray 4 are sequentially sleeved on an anchor rod 7 from bottom to top, the anti-impact energy-absorbing buffer structure is laminated rubber formed by overlapping and vulcanizing a plurality of rigid layers 2 and a plurality of rubber layers 3 in a staggered manner, a locking nut 6 is arranged on the anchor rod 7 in a threaded manner, the locking nut 6 is positioned above the top flat plate tray 4, and a rigid gasket 5 is arranged between the top flat plate tray 4 and the locking nut 6.
During actual use, through setting up scour protection energy-absorbing buffer structure between bottom flat tray 1 and top flat tray 4, scour protection energy-absorbing buffer structure can be better adaptation country rock warp, plays the buffering and lets the mechanism of action of pressing and repeated energy-absorbing.
It should be noted that, through the lamination rubber that is formed by alternately overlapping and vulcanizing a plurality of rigid layers 2 and a plurality of rubber layers 3 as the scour protection energy-absorbing buffer structure for this lamination rubber can adapt to the deformation of country rock horizontal direction and vertical direction, keeps the function of original energy-absorbing support under the effect of repeated disturbance shock wave simultaneously, can effectively reduce the damage rate of stock and tray, can make various lamination rubber trays that have different characteristics simultaneously through adjusting the layer number of rigid layers 2 and rubber layers 3, in order to adapt to different country rock deformation characteristics, application scope is extensive.
When the surrounding rock is deformed, the anchor rod 7 can deform at a certain angle, the laminated rubber is subjected to acting forces in the vertical and horizontal directions, and accordingly deforms according to the rigidity of the laminated rubber, so that the impact-resistant energy-absorbing component which can provide horizontal deformation and vertical deformation and resist repeated impact is formed, and the damage rate of the anchor rod and the tray is reduced.
In this embodiment, the number of the rigid layers 2 is equal to that of the rubber layers 3, one layer of the anti-impact energy-absorbing buffer structure, which is close to the bottom flat plate tray 1, is the rigid layer 2, and one layer of the anti-impact energy-absorbing buffer structure, which is close to the top flat plate tray 4, is the rubber layer 3.
In actual use, one layer of the anti-impact energy-absorbing buffer structure, which is close to the top flat plate tray 4, is the rubber layer 3, and the anchor rod 7 can be inclined at a certain angle through the deformation characteristic of the rubber layer 3.
In this embodiment, anchor rod holes through which the anchor rods 7 pass are formed in the centers of the bottom flat plate tray 1, the rigid layer 2, the rubber layer 3, the top flat plate tray 4 and the rigid gasket 5.
In actual use, the diameters of the anchor rod perforation holes on the rigid layer 2, the rubber layer 3, the top flat plate tray 4 and the rigid gasket 5 are the same and are smaller than those of the anchor rod perforation holes on the bottom flat plate tray 1.
In this embodiment, the hole diameter of the anchor rod perforation on the bottom flat plate tray 1 is larger than the diameter of the anchor rod 7.
As shown in fig. 3, in actual use, the hole diameter of the anchor rod perforation on the bottom flat plate tray 1 is larger than the diameter of the anchor rod 7, so that the anchor rod 7 can deform at a certain angle, the laminated rubber is driven to deform, the pressure is released, the function of yielding is realized, and the damage of the anchor rod 7 is avoided.
In this embodiment, the bottom flat tray 1, the top flat tray 4 and the rigid layer 2 are all square steel plates, the rigid gasket 5 is a round steel plate, and the rubber layer 3 is square.
In this embodiment, the bottom flat tray 1, the impact-resistant energy-absorbing buffer structure, the top flat tray 4 and the rigid washer 5 are all coaxially arranged with the anchor rod 7.
When the anti-impact energy-absorbing buffer structure is actually used, firstly, the number of layers of the rubber layer 3 in the anti-impact energy-absorbing buffer structure is determined according to surrounding rock deformation characteristics, then, the aperture of an anchor rod perforation on the bottom flat plate tray 1 is determined according to the maximum angle of the diameter of the anchor rod 7, which can be inclined, and the thickness of the anti-impact energy-absorbing buffer structure, then, the bottom flat plate tray 1, the anti-impact energy-absorbing buffer structure, the top flat plate tray 4 and the rigid washer 5 are sleeved on the anchor rod 7 in sequence, and finally, the anti-impact energy-absorbing buffer structure is locked through the locking nut 6.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, and any simple modification, variation and equivalent structural changes made to the above embodiment according to the technical substance of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims (6)

1. The utility model provides a scour protection energy-absorbing stromatolite rubber stock tray which characterized in that: including bottom flat tray (1), top flat tray (4) and set up the scour protection energy-absorbing buffer structure between bottom flat tray (1) and top flat tray (4), bottom flat tray (1), scour protection energy-absorbing buffer structure and top flat tray (4) are established by supreme cover down on stock (7) in proper order, scour protection energy-absorbing buffer structure is the lamination rubber that is formed by a plurality of rigidity layers (2) and a plurality of rubber layer (3) crisscross coincide vulcanization, lock nut (6) are installed to screw thread on stock (7), lock nut (6) are located the top of top flat tray (4), be provided with rigid washer (5) between top flat tray (4) and lock nut (6).
2. A shock and energy absorbing laminated rubber anchor pallet as defined in claim 1, wherein: the number of the rigid layers (2) is equal to that of the rubber layers (3), one layer, close to the bottom flat plate tray (1), in the anti-impact energy-absorbing buffer structure is the rigid layer (2), and one layer, close to the top flat plate tray (4), in the anti-impact energy-absorbing buffer structure is the rubber layer (3).
3. A shock and energy absorbing laminated rubber anchor pallet as defined in claim 1, wherein: the centers of the bottom flat plate tray (1), the rigid layer (2), the rubber layer (3), the top flat plate tray (4) and the rigid gasket (5) are provided with anchor rod perforation for the anchor rod (7) to penetrate.
4. A shock and energy absorbing laminated rubber anchor pallet as defined in claim 3, wherein: the aperture of the anchor rod perforation on the bottom flat plate tray (1) is larger than the diameter of the anchor rod (7).
5. A shock and energy absorbing laminated rubber anchor pallet as defined in claim 1, wherein: the bottom flat plate tray (1), the top flat plate tray (4) and the rigid layer (2) are square steel plates, the rigid gasket (5) is a round steel plate, and the rubber layer (3) is square.
6. A shock and energy absorbing laminated rubber anchor pallet as defined in claim 1, wherein: the bottom flat plate tray (1), the anti-impact energy-absorbing buffer structure, the top flat plate tray (4) and the rigid gasket (5) are all coaxially arranged with the anchor rod (7).
CN202322909567.8U 2023-10-30 2023-10-30 Impact-resistant energy-absorbing laminated rubber anchor rod tray Active CN221002819U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202322909567.8U CN221002819U (en) 2023-10-30 2023-10-30 Impact-resistant energy-absorbing laminated rubber anchor rod tray

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202322909567.8U CN221002819U (en) 2023-10-30 2023-10-30 Impact-resistant energy-absorbing laminated rubber anchor rod tray

Publications (1)

Publication Number Publication Date
CN221002819U true CN221002819U (en) 2024-05-24

Family

ID=91121029

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202322909567.8U Active CN221002819U (en) 2023-10-30 2023-10-30 Impact-resistant energy-absorbing laminated rubber anchor rod tray

Country Status (1)

Country Link
CN (1) CN221002819U (en)

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