CN210422658U - Underground medium-thickness phosphorus ore body top plate supporting device - Google Patents
Underground medium-thickness phosphorus ore body top plate supporting device Download PDFInfo
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- CN210422658U CN210422658U CN201921122429.2U CN201921122429U CN210422658U CN 210422658 U CN210422658 U CN 210422658U CN 201921122429 U CN201921122429 U CN 201921122429U CN 210422658 U CN210422658 U CN 210422658U
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Abstract
The utility model discloses a thick phosphorite body roof supporting device in pit, including tray and stock, the stock is vertical to be set up in the top of tray, the bottom fixedly connected with screw rod of stock, the top and the downwardly extending of tray are run through to the one end of screw rod, be equipped with the through-hole that corresponds with the screw rod on the tray, the screw rod is kept away from the one end screw thread of stock and has been cup jointed the nut, the top of tray is equipped with two backing plates that the symmetry set up, the backing plate is connected through a plurality of damping shock absorbers with the top of tray, the backing plate is close to a plurality of slide bars of one side fixedly connected with of damping shock absorber, the top of tray is equipped with the smooth. The utility model discloses in through the setting of annex mechanisms such as stock and tray, make supporting device can reduce the safety risk in the work progress, can pass unstable layer simultaneously, reach better supporting effect.
Description
Technical Field
The utility model relates to an equipment technical field is strutted in mineral exploitation, especially relates to in the pit medium thick phosphorite body roof supporting device.
Background
The phosphorite generally belongs to semi-hard carbonate rock, but the roof directly contacted with the ore layer is laminated argillaceous nephrite with the thickness of about 2.5-3.5m, and because a weak or relatively weak structural surface develops and belongs to surrounding rock with poor stability, the roof collapse accident is possibly generated due to improper support measures in the mining process.
In the prior art, anchor cable support is generally adopted, and due to overhigh tunnel, construction is extremely difficult, safety risk is high in the construction process, the hardness of rock is high, and the drilling efficiency is extremely low; if a common anchor rod is adopted for supporting, the common anchor rod cannot penetrate through an unstable layer because the length of the common anchor rod is within 2.5m, and a good supporting effect cannot be achieved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems that in the prior art, anchor cable support is generally adopted, construction is extremely difficult due to overhigh tunnel, safety risk is high in the construction process, rock hardness is high, and drilling efficiency is extremely low; if the common anchor rod is adopted for supporting, the common anchor rod can not penetrate through an unstable layer because the length of the common anchor rod is within 2.5m, and the good supporting effect can not be achieved, so that the underground medium-thickness phosphate rock top plate supporting device is provided.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
underground medium-thickness phosphorite body roof supporting device, including tray and stock, the stock is vertical to be set up in the top of tray, the bottom fixedly connected with screw rod of stock, the top and the downwardly extending of tray are run through to the one end of screw rod, be equipped with the through-hole that corresponds with the screw rod on the tray, the one end screw thread that the stock was kept away from to the screw rod has cup jointed the nut, the top of tray is equipped with two backing plates that the symmetry set up, the backing plate is connected through a plurality of damping shock absorbers with the top of tray, one side fixedly connected with a plurality of slide bars that the backing plate is close to the damping shock absorber, the top of tray is equipped with the.
Preferably, the screw rod is close to the one end of nut and is slided to be cup jointed the rubber circle, and one side of rubber circle offsets with the bottom of tray.
Preferably, one end of the sliding rod, which is positioned in the sliding cavity, is fixedly connected with a limiting block.
Preferably, the anchor rod is 5.0m long and 25mm in internal diameter.
Preferably, the material of tray is Q235 steel sheet, and the length and the width of tray are 205mm, and the thickness is 10 mm.
Preferably, the rubber ring has a diameter of 150mm, a thickness of 50mm, and an inner diameter of 25 mm.
Has the advantages that:
1. the method comprises the steps of firstly drilling holes at the top of a roadway, enabling the angle of a middle anchor rod hole to be 90 degrees, enabling the angle of anchor rod holes at two sides to be 70 degrees, enabling the hole depth to be 5m, enabling the hole diameter to be 38mm, enabling the mesh degree to be 1.5m multiplied by 2m, arranging the anchor rod holes in a plum blossom shape, then filling an anchoring agent into the anchor rod holes, inserting anchor rods into the anchor rod holes by utilizing an anchor rod trolley, then sleeving a tray on a screw rod, sleeving a rubber ring on the screw rod, and then fixing the tray by utilizing a nut, wherein the safety risk in the construction process can be reduced by the aid of a supporting device through the arrangement of accessory mechanisms such as the anchor rods, the tray and the like, and meanwhile;
2. meanwhile, the arrangement of the base plate and the damping shock absorber can play a role in damping and buffering at one end of the tray, and meanwhile, an impact type hole drilling mode is adopted in the scheme, so that the rock drilling efficiency is still high for a top plate with the rock hardness coefficient of more than 8, the hole depth can reach more than 5 meters, and the hole diameter is 38 mm; the length of the anchor rod reaches 5m, and the support effect on a top plate with the pseudo-top thickness of more than 3m is still good.
Drawings
Fig. 1 is a schematic structural view of the underground medium-thick phosphate rock top plate supporting device provided by the utility model;
FIG. 2 is a cross-sectional layout view of the underground middle-thickness phosphate rock roof supporting device provided by the utility model;
fig. 3 is a schematic structural view of a portion a of fig. 1.
In the figure: 1 tray, 2 stock, 3 screw rods, 4 nuts, 5 backing plates, 6 damping shock absorbers, 7 slide bars, 8 rubber rings and 9 limiting blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the underground medium-thickness phosphate rock top plate supporting device comprises a tray 1 and an anchor rod 2, wherein the anchor rod 2 is vertically arranged above the tray 1, the bottom of the anchor rod 2 is fixedly connected with a screw rod 3, used for fixing the tray 1, one end of the screw rod 3 penetrates through the top of the tray 1 and extends downwards, a through hole corresponding to the screw rod 3 is arranged on the tray 1, a nut 4 is sleeved on one end of the screw rod 3 far away from the anchor rod 2 in a threaded manner, used for fixing the tray 1, two symmetrically arranged backing plates 5 are arranged at the top of the tray 1 and used for playing a role of shock absorption and buffering on the tray 1, the backing plates 5 are connected with the top of the tray 1 through a plurality of damping shock absorbers 6, the damping and buffering device is used for damping and buffering the tray 1, the base plate 5 is fixedly connected with a plurality of sliding rods 7 on one side close to the damping and buffering device 6, the base plate 5 is prevented from shaking, and the top of the tray 1 is provided with a sliding cavity corresponding to the sliding rods 7.
In this embodiment, the one end that screw rod 3 is close to nut 4 is slided and is cup jointed rubber circle 8, one side of rubber circle 8 offsets with tray 1's bottom, can its cushioning effect, reach the purpose of flexible support, slide bar 7 is located the one end fixedly connected with stopper 9 of slide chamber, prevent that slide bar 7 from droing from the slide chamber, the length of stock 2 is 5.0m, the internal diameter is 25mm, tray 1's material is the Q235 steel sheet, the stability that reinforcing stock 2 strutted, and tray 1's length and width are 205mm, thickness is 10mm, the effect of strutting of reinforcing tray, rubber circle 8's diameter is 150mm, thickness is 50mm, and rubber circle 8's internal diameter is 25mm, the cushioning effect that reinforcing rubber circle 8 played.
In the embodiment, firstly, drilling is carried out on the top of a roadway, meanwhile, the eye angle of the middle anchor rod 2 is 90 degrees, the eye angles of the anchor rods 2 on two sides are 70 degrees, the hole depth is 5m, the hole diameter is 38mm, and the mesh degree is 1.5m multiplied by 2m, the anchor rods are arranged in a plum blossom shape, then, an anchor agent is poured into the anchor rod eyes, then, the anchor rods 2 are inserted into the anchor eyes by using an anchor rod trolley, then, the tray 1 is sleeved on the screw rod 3, then, the rubber ring 8 is sleeved on the screw rod 3, and then, the tray 1 is fixed by using the;
in the embodiment, the arrangement of the backing plate 5 and the damping shock absorber 6 can play a role in damping and buffering at one end of the tray 1, and meanwhile, an impact type hole drilling mode is adopted in the scheme, so that the rock drilling efficiency is still high for a top plate with the rock hardness coefficient of more than 8, the hole depth can reach more than 5 meters, and the hole diameter is 38 mm; the length of the anchor rod 2 reaches 5m, and the support effect on a top plate with the pseudo-top thickness of more than 3m is good.
Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.
Claims (6)
1. Thick phosphorus ore body roof supporting device in pit includes tray (1) and stock (2), its characterized in that: anchor rod (2) are vertical to be set up in the top of tray (1), the bottom fixedly connected with screw rod (3) of anchor rod (2), the top and the downwardly extending of tray (1) are run through to the one end of screw rod (3), be equipped with the through-hole that corresponds with screw rod (3) on tray (1), nut (4) have been cup jointed to the one end screw thread that anchor rod (2) were kept away from in screw rod (3), the top of tray (1) is equipped with two backing plates (5) that the symmetry set up, backing plate (5) are connected through a plurality of damping bumper shock absorbers (6) with the top of tray (1), one side fixedly connected with a plurality of slide bars (7) that backing plate (5) are close to damping bumper shock absorbers (6), the top of tray (1) is equipped with the sliding chamber that corresponds with slide bar (7).
2. The underground medium-thickness phosphate rock roof supporting device according to claim 1, characterized in that: one end of the screw rod (3) close to the nut (4) is sleeved with a rubber ring (8) in a sliding mode, and one side of the rubber ring (8) is abutted to the bottom of the tray (1).
3. The underground medium-thickness phosphate rock roof supporting device according to claim 1, characterized in that: one end of the sliding rod (7) positioned in the sliding cavity is fixedly connected with a limiting block (9).
4. The underground medium-thickness phosphate rock roof supporting device according to claim 1, characterized in that: the length of the anchor rod (2) is 5.0m, and the inner diameter is 25 mm.
5. The underground medium-thickness phosphate rock roof supporting device according to claim 1, characterized in that: the material of tray (1) is Q235 steel sheet, and the length and the width of tray (1) are 205mm, and the thickness is 10 mm.
6. The underground medium-thickness phosphate ore body top plate supporting device according to claim 2, characterized in that: the diameter of the rubber ring (8) is 150mm, the thickness is 50mm, and the inner diameter of the rubber ring (8) is 25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921122429.2U CN210422658U (en) | 2019-07-17 | 2019-07-17 | Underground medium-thickness phosphorus ore body top plate supporting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921122429.2U CN210422658U (en) | 2019-07-17 | 2019-07-17 | Underground medium-thickness phosphorus ore body top plate supporting device |
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| CN210422658U true CN210422658U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921122429.2U Active CN210422658U (en) | 2019-07-17 | 2019-07-17 | Underground medium-thickness phosphorus ore body top plate supporting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112036068A (en) * | 2020-09-07 | 2020-12-04 | 中国十七冶集团有限公司 | BIM technology-based deep foundation pit damping anti-floating anchor rod construction optimization method |
-
2019
- 2019-07-17 CN CN201921122429.2U patent/CN210422658U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112036068A (en) * | 2020-09-07 | 2020-12-04 | 中国十七冶集团有限公司 | BIM technology-based deep foundation pit damping anti-floating anchor rod construction optimization method |
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