CN220794040U

CN220794040U - Strip mine drilling hole protection device

Info

Publication number: CN220794040U
Application number: CN202322752084.1U
Authority: CN
Inventors: 张利; 孙宽; 邵宾; 范多水; 牛庆; 章有明
Original assignee: Dongfang Measurement & Control Technology Co ltd
Current assignee: Dongfang Measurement & Control Technology Co ltd
Priority date: 2023-10-13
Filing date: 2023-10-13
Publication date: 2024-04-16
Anticipated expiration: 2033-10-13

Abstract

The utility model discloses a strip mine drilling hole protection device, which relates to the technical field of hole protection devices and comprises: the hole blocking part comprises a hole protection rotating rod, a hole plug and a hole opening soil-proof cover; the hole plug is detachably connected to the bottom of the hole protection rotating rod; a through hole is formed in the middle of the top end of the orifice soil-proof cover; the orifice soil-proof cover is sleeved on the hole-protecting rotating rod in a sliding way and is positioned above the plug in the hole; the top end of the guard hole rotating rod is a rotary driving end; the soil cleaning part comprises more than two bulldozing paddles; more than two bulldozing paddles are uniformly distributed along the circumferential direction of the hole protection rotating rod and are fixed on the upper circumferential wall of the hole protection rotating rod; more than two blade are located above the aperture earth guard. The utility model can replace manual work by mechanical equipment when hole protection operation is carried out, can reduce adverse effects of dust environment on the health of staff, can avoid the collapse of dregs to cover the hole protection device, can increase hole protection efficiency and improve hole protection effect.

Description

Strip mine drilling hole protection device

Technical Field

The utility model relates to the technical field of hole protection devices, in particular to a drilling hole protection device for an open pit mine.

Background

The hole protection tool is a tool for preventing slag from reversely pouring into the drill hole, improving the stability of a slag pile and protecting the drill hole from maintaining the existing depth. Under the abominable environment of strip mine, the manual work is adorned the slay in the braided bag, binds the mouth with the braided bag after the mode of pressing on the drilling and protecting the hole greatly increased personnel's work load, and a large amount of raise dust in the simultaneous work influences staff's health.

Chinese patent (grant bulletin number CN 215676715U, grant bulletin day 2022.01.28) discloses a blast hole protection device for open pit mine, specifically discloses a hole for fixing including hollow ring steel plate, set up the several in this hollow ring steel plate lower part, set up the apron of the hollow circle top of hollow ring steel plate, set up handrail on the hollow ring steel plate, the hollow ring steel plate interior circle arch. And opening the cover plate when drilling, and rotating and closing the cover plate after drilling. Four holes for fixing are formed in the lower portion of the hollow circular steel plate, and the device is fixed to the hole by means of iron nails and the like. The upper part of the hollow circular steel plate is welded with a handrail, which is convenient for the moving device. Therefore, the strip mine blast hole protection device provided by the technical scheme needs manual operation to fix and open and close the cover plate, and adverse effects of slag soil dust generated by drilling on the health of personnel cannot be avoided; and the accumulated dregs around the drilled holes gradually collapse to cover the hole protection device, which is not beneficial to subsequent operation.

Therefore, how to provide a strip mine drilling hole protection device, available mechanical equipment replaces manual work when carrying out the hole protection operation, can reduce the adverse effect of dust environment to staff's healthy, and can avoid the dregs to collapse and cover the hole protection device to can increase hole protection efficiency, improve hole protection effect and be the problem that the technical personnel need to solve urgently in the art.

Disclosure of utility model

In view of the above, the present utility model provides a hole protection device for drilling a strip mine, which aims to solve the above technical problems. According to the strip mine drilling hole protection device, mechanical equipment can be used for replacing manual work when hole protection operation is carried out, adverse effects of dust environment on the health of workers can be reduced, the hole protection device can be prevented from being covered by slag soil collapse, hole protection efficiency can be improved, and hole protection effect can be improved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

one aspect of the present utility model provides a strip mine drilling guard device comprising:

The hole blocking part comprises a hole protection rotating rod, a hole plug and a hole opening soil-proof cover; the hole plug is detachably connected to the bottom of the hole protection rotating rod; a through hole is formed in the middle of the top end of the orifice soil-proof cover; the orifice soil-proof cover is sleeved on the hole-protecting rotating rod in a sliding manner and is positioned above the hole inner plug; the top end of the hole protection rotating rod is a rotary driving end;

The soil cleaning part comprises more than two bulldozing paddles; more than two bulldozing paddles are uniformly distributed along the circumference of the hole protection rotating rod and are fixed on the upper peripheral wall of the hole protection rotating rod; more than two of the blade are located above the aperture earth guard.

Compared with the prior art, the open-pit mine drilling hole protection device provided by the utility model has the advantages that when in use, one end of the hole protection rotating rod, which is connected with the hole inner plug, is inserted into a drill hole, the hole opening soil protection cover is blocked at the hole opening by means of self weight in an abutting manner, the hole protection rotating rod is gradually inserted into the drill hole, and finally the bottom end of the bulldozing blade can press the hole opening soil protection cover at the hole opening; the top end of the hole protection rotating rod is a rotary driving end in transmission connection with the power equipment, the hole protection rotating rod can be driven by the power equipment to rotate, the rotary hole protection rotating rod drives the bulldozing blade to rotate so as to push dregs in a direction away from the center line of the drill hole, so that the debris substances such as dregs in the peripheral area of the hole opening are cleaned, further, the soil pile nearby the hole opening is prevented from collapsing to cover the hole protection device, and the dregs can be prevented from falling into the drill hole; the hole plugs and the hole opening soil-proof cover form a double-layer rock-soil backflow-proof structure, so that the protection effect is improved; the hole plugs and the hole protection rotating rod are detachably connected, and the hole plugs with different sizes can be replaced for drilling holes with different specifications, so that the universality of the hole protection device is improved.

As a further improvement of the technical scheme, the hole blocking part further comprises an annular hole protecting sealing plate which is detachably sleeved on the hole protecting rotating rod and is positioned at the top end of the plug in the hole; the orifice soil guard is located above the annular guard hole sealing plate.

The annular guard hole sealing plate can further seal sundries such as rock soil dust and the like falling into a drilled hole, so that the protection effect is further improved; the annular guard hole sealing plate and the guard hole rotating rod are detachable, so that the annular guard hole sealing plate matched with the holes in different specifications can be replaced conveniently; the annular guard hole sealing plate is positioned at the top end of the plug in the hole, and the plug in the hole plays a supporting role on the annular guard hole sealing plate.

As a further improvement of the technical scheme, the annular guard hole sealing plate is a flexible plate; the outer diameter of the annular guard hole sealing plate is matched with the aperture of the strip mine drilling hole.

The external diameter of the flexible annular guard hole sealing plate is matched with the aperture of the open pit drill hole, so that tight plugging of the drill hole can be realized.

As a further improvement of the technical scheme, a preset distance is reserved between the top end of the plug in the hole and the bottom end of the bulldozing blade.

When placing the hole protection device, the hole opening prevents that soil cover begins the butt on downthehole end cap top, and the hole opening prevents that soil cover can follow the hole protection bull stick and slide, and at the in-process that the hole protection bull stick inserted the drilling gradually, the hole opening prevents that soil cover can remain the shutoff state to the drilling hole opening all the time, has further avoided placing the rock soil that the hole protection bull stick in-process subsides and has fallen into in the drilling.

As a further improvement of the technical scheme, the outer diameter of the hole plug is smaller than the bore diameter of the strip mine drilling hole.

The outer diameter of the plug in the hole is smaller than the bore diameter of the open pit mine drilling hole, so that the plug can be conveniently and smoothly inserted into the drilling hole.

As a further improvement of the technical scheme, the orifice soil-proof cover is in a frustum shape, and one side of the small end of the orifice soil-proof cover is close to the plug in the hole; the outer diameter of the big head end of the orifice soil-proof cover is larger than the bore diameter of the open pit drill hole, and the outer diameter of the small head end of the orifice soil-proof cover is smaller than the bore diameter of the open pit drill hole.

The frustum-shaped orifice soil-proof cover is more beneficial to the positioning of the small-end insertion hole when the orifice is plugged, and the outer diameter of the large-end of the orifice soil-proof cover is larger than that of a strip mine drilling hole, so that the full sealing cover of the drilling hole can be realized.

As a further improvement of the technical scheme, the hole blocking part further comprises a protection cylinder, the protection cylinder is suitable for being fixedly arranged at the big head end of the hole opening soil-proof cover, and the top end of the protection cylinder corresponds to the top end of the hole opening soil-proof cover.

When the drill hole is blocked by the hole opening soil-proof cover, the bottom end of the protective cylinder is enclosed outside the hole opening so as to prevent sundries such as rock and soil from entering the drill hole, and further improve the protective effect of the drill hole.

As a further improvement of the technical scheme, the height of the protective cylinder is the same as that of the orifice soil-proof cover.

As a further improvement of the technical scheme, more than two bulldozing paddles are of cambered surface spiral structures, and the blade surfaces of the bulldozing paddles are parallel to the hole protection rotating rod.

The bulldozer blade with the cambered surface spiral structure reduces the movement resistance and is convenient for pushing the residue soil away from the peripheral area of the drill hole.

As a further improvement of the technical scheme, reinforcing rib plates are arranged on the blade surfaces of the bulldozer blade. The reinforcing rib plate plays a role in improving the structural strength and the bulldozing stability of the bulldozing blade.

Compared with the prior art, the utility model discloses a strip mine drilling hole protection device, which has the following advantages and beneficial effects:

1. Compared with the artificial hole protection, the utility model has higher efficiency and higher quality; the bulldozing blade plays a role in pushing away rock and soil, cleaning surrounding areas of the orifice, and can enable the rock and soil to be evenly distributed on the periphery of a drilled hole, so that stability of a rock and soil pile is improved, dust in an operation area can be prevented from being lifted in a large area, and good working environment of workers is ensured.

2. According to the utility model, one end of the hole protection rotating rod, which is connected with the plug in the hole, is inserted into the drill hole, and the small end of the frustum-shaped hole opening soil-proof cover is inserted into the hole for positioning, so that the stability of the hole protection device during rotation can be ensured; the hole plugs, the annular protection hole sealing plates, the hole opening soil-proof cover and the protection cylinder form a multiple rock-soil backflow prevention structure, and the protection effect of drilling is improved.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of the overall structure of a strip mine drilling and protecting device;

FIG. 2 is a schematic view of a protective cylinder structure of a strip mine drilling protective hole device;

In the figure: 1. a hole blocking part; 11. a hole protection rotating rod; 12. a plug in the hole; 13. an orifice soil-proof cover; 14. an annular guard hole sealing plate; 15. a protective cylinder; 16. an annular pressing plate; 2. a soil cleaning part; 21. blade for bulldozing; 22. reinforcing rib plates.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

As shown in fig. 1, this embodiment provides a strip mine drilling hole protection device, including:

The hole blocking part 1, wherein the hole blocking part 1 comprises a hole protection rotating rod 11, a hole plug 12 and a hole opening soil-proof cover 13; the hole plug 12 is detachably connected to the bottom of the hole protection rotating rod 11 by improving a screw; a through hole is formed in the middle of the top end of the orifice soil-proof cover 13; the orifice soil-proof cover 13 is sleeved on the hole-protecting rotary rod 11 in a sliding manner and is positioned above the hole inner plug 12; the top end of the guard hole rotating rod 11 is a rotary driving end;

a soil cleaning portion 2, the soil cleaning portion 2 including two or more bulldozing blades 21; more than two bulldozing blades 21 are uniformly distributed along the circumference of the hole protection rotating rod 11 and are welded and fixed on the peripheral wall of the upper part of the hole protection rotating rod 11; more than two blade 21 are located above the aperture earth guard 13.

According to the strip mine drilling hole protection device, when the strip mine drilling hole protection device is used, one end, connected with the hole plug 12, of the hole protection rotating rod 11 is inserted into a drilling hole, the hole opening soil protection cover 13 is abutted and blocked at the hole opening by means of dead weight, the hole protection rotating rod 11 is gradually inserted into the drilling hole, and finally the bottom end of the bulldozing blade 21 can be used for abutting and pressing the hole opening soil protection cover 13 at the hole opening; the top end of the guard hole rotating rod 11 is a rotary driving end in transmission connection with power equipment, the guard hole rotating rod 11 can be driven by the power equipment to rotate, the rotary guard hole rotating rod 11 drives the bulldozer blade 21 to rotate so as to push dregs in a direction away from the center line of a drill hole, so that the debris matters such as the dregs in the peripheral area of the hole are cleaned, further, the soil pile nearby the hole is prevented from collapsing to cover the guard hole device, and the dregs can be prevented from falling into the drill hole; the hole plugs 12 and the hole opening soil-proof covers 13 form a double-layer rock-soil backflow prevention structure, so that the protection effect is improved; the hole plugs 12 are detachably connected with the hole protection rotating rod 11, and the hole plugs 12 with different sizes can be replaced for drilling holes with different specifications, so that the universality of the hole protection device is improved.

Specifically, the top end of the hole protection rotating rod 11 is provided with a square hole for connecting a hydraulic rotating power head so as to transmit torque.

In some embodiments, the hole blocking part 1 further comprises an annular hole protecting sealing plate 14, wherein the annular hole protecting sealing plate 14 is detachably sleeved on the hole protecting rotating rod 11 and is positioned at the top end of the hole inner plug 12; the orifice soil guard 13 is located above the annular grommet sealing plate 14.

Specifically, the outer wall of the hole protection rotating rod 11 is provided with a limit screw corresponding to the upper end face of the annular hole protection sealing plate 14 so as to prevent the annular hole protection sealing plate 14 from sliding upwards along the hole protection rotating rod 11.

The annular guard hole sealing plate 14 can further block sundries such as rock soil dust and the like falling into the drilled holes, so that the protection effect is further improved; the annular guard hole sealing plate 14 is detachable from the guard hole rotating rod 11, so that the annular guard hole sealing plate 14 matched with the holes in different specifications can be replaced conveniently; the annular guard hole sealing plate 14 is positioned at the top end of the hole plug 12, and the hole plug 12 plays a supporting role on the annular guard hole sealing plate 14.

In some embodiments, the annular grommet sealing plate 14 is a flexible plate; the outer diameter of the annular guard aperture sealing plate 14 is adapted to the bore diameter of the strip mine bore hole.

In particular, the annular guard hole sealing plate 14 can be a wear-resistant rubber plate with better flexibility.

The outer diameter of the flexible annular guard hole sealing plate 14 is matched with the diameter of the open pit drill hole, so that tight plugging of the drill hole can be realized.

In some embodiments, the hole protection rotating rod 11 is sleeved with an annular pressing plate 16, the annular pressing plate 16 is propped against the top end of the annular hole protection sealing plate 14, and the annular pressing plate 16 is fixed with the top end of the hole plug 12 through screws so as to fasten the annular hole protection sealing plate 14 between the annular pressing plate 16 and the hole plug 12.

Specifically, the hole protection rotating rod 11, the hole plug 12, the annular pressing plate 16, the annular hole protection sealing plate 14 and the annular pressing plate 16 are all round, and the outer diameter of the annular pressing plate 16 is equal to or smaller than the outer diameter of the top of the hole plug 12. The annular pressure plate 16 and the hole stopper 12 function to support the flexible annular grommet sealing plate 14 to improve the sealing performance between the edge of the annular grommet sealing plate 14 and the borehole wall.

The outer wall of the grommet rotating rod 11 corresponds to, in some embodiments, a predetermined distance between the top end of the hole stopper 12 and the bottom end of the blade 21.

Specifically, the preset distance is 30cm-120cm; the size of the preset distance can be flexibly set according to the aperture of the drilling hole and the height of the device, so that the part of the hole protection device inserted into the drilling hole can stably support and fix the whole rotation of the device, and the hole protection device is prevented from obviously shaking in the rotation process of the hole protection rotating rod 11.

When the hole protection device is placed, the hole opening soil-proof cover 13 is initially abutted to the top end of the plug 12 in the hole, the hole opening soil-proof cover 13 can slide along the hole protection rotating rod 11, and in the process that the hole protection rotating rod 11 is gradually inserted into a drilled hole, the hole opening soil-proof cover 13 can always keep a blocking state of the hole opening of the drilled hole, so that the rock and soil collapsing in the process of placing the hole protection rotating rod 11 is further prevented from falling into the drilled hole.

In some embodiments, the bore plug 12 has an outer diameter that is less than the bore diameter of the strip mine borehole.

The outside diameter of the hole plug 12 is smaller than the bore diameter of the strip mine bore hole, so that the strip mine bore hole can be conveniently and smoothly inserted into the bore hole.

In some embodiments, the orifice soil-guard 13 is in the shape of a frustum, with its small-end side disposed proximate to the in-hole plug 12; the outer diameter of the big head end of the orifice soil-proof cover 13 is larger than the bore diameter of the open pit drill hole, and the outer diameter of the small head end of the orifice soil-proof cover 13 is smaller than the bore diameter of the open pit drill hole.

The frustum-shaped hole opening soil-preventing cover 13 is more beneficial to the positioning of the small-end insertion hole when the hole opening is plugged, and the outer diameter of the large-end of the hole opening soil-preventing cover 13 is larger than that of a strip mine hole, so that the full sealing of the hole opening of the hole can be realized.

In some embodiments, referring to fig. 2, the hole blocking portion 1 further includes a protective cylinder 15, the protective cylinder 15 is adapted to be secured to the large end of the hole soil guard 13, and the top end of the protective cylinder 15 corresponds to the top end of the hole soil guard 13.

Specifically, the outer diameter of the big end of the orifice soil-proof cover 13 is matched with the inner diameter of the protective cylinder 15, and the two are welded, sealed and fixed.

Specifically, the protective cylinder 15 is made of a steel cylinder by cutting, and the bottom end of the protective cylinder 15 can be embedded into the soil layer around the drill hole under the pressing action of the bulldozing blade 21.

When the hole opening is blocked by the hole opening soil-preventing cover 13, the bottom end of the protecting cylinder 15 is enclosed outside the hole opening so as to prevent sundries such as rock and soil from entering the drill hole, and particularly, the soil-preventing cover can prevent rainwater from flushing the rock and soil to form mud to flow backwards into the drill hole in rainy days, so that the protecting effect of the drill hole is greatly improved.

In some embodiments, the guard cylinder 15 is the same height as the aperture soil guard 13.

In some embodiments, more than two of the blade 21 are each of cambered helical configuration and have their faces parallel to the guard bar 11.

The cambered helical blade 21 reduces the resistance to movement and facilitates pushing the earth and slag away from the borehole perimeter.

Specifically, the blade 21 is formed by crimping a rectangular high-carbon steel plate.

In some embodiments, a plurality of reinforcing ribs 22 are welded to the face of each blade 21. The reinforcing rib plate 22 plays a role in improving the structural strength and the bulldozing stability of the bulldozer blade 21.

According to the open pit mine drilling hole protection device, the multiple rock-soil backflow prevention structure is formed by the hole plug, the annular hole protection sealing plate, the hole opening soil prevention cover and the protection cylinder, so that sundries such as dregs and rock soil can be prevented, and water and mud can be prevented from flowing backwards into a drilled hole.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A strip mine drilling guard hole device, comprising:

The hole blocking part (1), wherein the hole blocking part (1) comprises a hole protection rotating rod (11), a hole plug (12) and a hole opening soil-proof cover (13); the hole plug (12) is detachably connected to the bottom of the hole protection rotating rod (11); the middle part of the top end of the orifice soil-proof cover (13) is provided with a through hole; the orifice soil-proof cover (13) is sleeved on the hole-protecting rotating rod (11) in a sliding manner and is positioned above the hole plug (12); the top end of the hole protection rotating rod (11) is a rotary driving end;

A soil cleaning part (2), wherein the soil cleaning part (2) comprises more than two bulldozing paddles (21); more than two bulldozing paddles (21) are uniformly distributed along the circumferential direction of the hole protection rotating rod (11) and are fixed on the upper circumferential wall of the hole protection rotating rod (11); two or more of the blade (21) are located above the aperture earth guard (13).

2. The strip mine drilling hole protection device according to claim 1, wherein the hole blocking part (1) further comprises an annular hole protection sealing plate (14), and the annular hole protection sealing plate (14) is detachably sleeved on the hole protection rotating rod (11) and is positioned at the top end of the hole plug (12); the orifice soil-guard cover (13) is positioned above the annular guard hole sealing plate (14).

3. The strip mine drilling and hole protecting device according to claim 2, wherein the annular hole protecting sealing plate (14) is a flexible plate; the outer diameter of the annular guard hole sealing plate (14) is matched with the aperture of the open pit drill hole.

4. The strip mine drilling and hole protecting device according to claim 1, wherein a preset distance is reserved between the top end of the hole plug (12) and the bottom end of the bulldozer blade (21).

5. The strip mine drilling hole protection device according to claim 1, wherein the hole plug (12) has an outer diameter smaller than the hole diameter of the strip mine drilling hole.

6. The strip mine drilling hole protection device according to claim 1, wherein the hole opening soil protection cover (13) is in a frustum shape, and the small end side of the hole opening soil protection cover is close to the hole plug (12); the outer diameter of the big head end of the orifice soil-proof cover (13) is larger than the bore diameter of the open pit drill hole, and the outer diameter of the small head end of the orifice soil-proof cover (13) is smaller than the bore diameter of the open pit drill hole.

7. The strip mine drilling hole protection device according to claim 1, wherein the hole blocking portion (1) further comprises a protection cylinder (15), the protection cylinder (15) is adapted to be fixedly arranged at the big head end of the hole opening soil protection cover (13), and the top end of the protection cylinder (15) corresponds to the top end of the hole opening soil protection cover (13).

8. The strip mine drilling and protection device according to claim 7, wherein the protection cylinder (15) is the same as the orifice earth shield (13).

9. The strip mine drilling hole protection device according to claim 1, wherein two or more of the bulldozer blades (21) are of cambered spiral structures, and the blade surfaces of the bulldozer blades are parallel to the hole protection rotating rod (11).

10. The strip mine drilling and hole protecting device according to claim 9, wherein reinforcing rib plates (22) are arranged on the surfaces of the bulldozer blades (21).