CN114293924B - Roof bolter and wall of a well strutting arrangement for shaft support - Google Patents
Roof bolter and wall of a well strutting arrangement for shaft support Download PDFInfo
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- CN114293924B CN114293924B CN202111610534.2A CN202111610534A CN114293924B CN 114293924 B CN114293924 B CN 114293924B CN 202111610534 A CN202111610534 A CN 202111610534A CN 114293924 B CN114293924 B CN 114293924B
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Abstract
The invention relates to an anchor rod drilling machine for shaft support and a well wall support device, wherein the anchor rod drilling machine for shaft support comprises an anchor rod drilling machine body, a first oil cylinder for adjusting the pitching angle of the anchor rod drilling machine body in the vertical direction and a second oil cylinder for adjusting the lifting height of the anchor rod drilling machine body in the vertical direction, the anchor rod drilling machine body is hinged with one end of a main beam, the other end of the main beam is hinged with a base positioned below the anchor rod drilling machine body, the first oil cylinder is hinged between the anchor rod drilling machine body and the main beam, and the second oil cylinder is hinged between the main beam and the base; the base can be arranged in the shaft in a rotating way along the circumferential direction of the shaft. The invention solves the technical problems of inconvenient control and low safety of the jumbolter for shaft support.
Description
Technical Field
The invention relates to the technical field of shaft tunneling, in particular to an anchor rod drilling machine for shaft support and a well wall support device.
Background
At present, in the working process of a vertical shaft supporting jumbolter, a special rotary platform is required to drive a whole shaft to drill in a circumferential direction of the shaft, so that the complexity is high, the cost is high, and the control precision is difficult; in addition, the jumbolter has the defect of low overall freedom degree, and the moving position of the jumbolter needs to be manually controlled by an operator, so that the operator can work on the rotary platform in a standing manner, and the safety accident is easy to occur.
Aiming at the problems of inconvenient control and low safety of the jumbolter for shaft support in the related art, no effective solution is provided at present.
Therefore, the inventor provides an anchor rod drilling machine for shaft support and a well wall support device by virtue of experience and practice of related industries for many years so as to overcome the defects of the prior art.
Disclosure of Invention
The invention aims to provide an anchor rod drilling machine for shaft support and a well wall support device, which can freely move along the circumferential direction of an inner cylinder in a shaft, are convenient to operate and flexible to move, do not need an operator to stand on a rotary platform for operation, and greatly improve the safety and the operation efficiency of shaft support operation.
The aim of the invention can be achieved by adopting the following technical scheme:
the invention provides an anchor rod drilling machine for shaft support, the utility model provides a vertical shaft is roof-bolter for support includes the roof-bolter body, adjusts the first hydro-cylinder of roof-bolter body pitch angle in vertical direction and the regulation the second hydro-cylinder of roof-bolter body height that goes up and down in vertical direction, wherein:
The anchor drilling machine comprises an anchor drilling machine body, a main beam, a first oil cylinder, a second oil cylinder, a base, a first oil cylinder, a second oil cylinder and a support, wherein the anchor drilling machine body is hinged with one end of the main beam, the other end of the main beam is hinged with the base below the anchor drilling machine body, the first oil cylinder is hinged between the anchor drilling machine body and the main beam, and the second oil cylinder is hinged between the main beam and the base; the base can be rotationally arranged in the shaft along the circumferential direction of the shaft.
In a preferred embodiment of the invention, an annular track is arranged in the shaft along the circumferential direction of the shaft, and a locking mechanism capable of locking the base on the track is arranged at the bottom of the base.
In a preferred embodiment of the invention, one end of the main beam is hinged to the middle position of the bottom of the jumbolter body, and the other end of the main beam is hinged to the top of the base; the cylinder body of the first oil cylinder is hinged with a transverse stiffening beam positioned on the main beam, and the end part of a piston rod of the first oil cylinder is hinged with the bottom of the jumbolter body so as to push the jumbolter body to change the inclination angle in the vertical direction; the cylinder body of the second oil cylinder is hinged with the middle position of the top of the base, and the end part of the piston rod of the second oil cylinder is hinged with the middle position of the main beam so as to push the jumbolter body to change the lifting height vertically.
In a preferred embodiment of the present invention, a travelling wheel capable of driving the base to move along the track is arranged at the bottom of the base, and the travelling wheel is slidably connected with the track.
In a preferred embodiment of the present invention, the base is provided with a driving motor, and a main shaft of the travelling wheel is connected with an output shaft of the driving motor.
In a preferred embodiment of the invention, a guiding wheel capable of guiding the movement of the base on the track is arranged at the bottom of the base, and the guiding wheel is slidably connected with the track.
In a preferred embodiment of the present invention, the locking mechanism includes two connection beams disposed below the base and respectively located at two sides of the track, the top ends of the two connection beams are connected to the bottom of the base, the bottom ends of the two connection beams are respectively hinged to one end of the locking hook, a locking ring capable of moving up and down is disposed between the two connection beams and above the track, one ends of the two connection rods are hinged to the locking ring, the other ends of the two connection rods are respectively hinged to the middle positions of the corresponding locking hooks, and when the locking ring drives the two connection rods to move up, the two connection rods drive the two locking hooks to rotate in a direction close to the track until the two locking hooks respectively abut against the bottoms of the flange plates on the track, so as to lock the base on the track.
In a preferred embodiment of the present invention, the locking mechanism further includes a locking seat fixedly disposed inside the base, a threaded hole is formed in the locking seat, a locking screw is disposed in the threaded hole, the locking screw is disposed vertically, and the bottom of the locking screw extends below the base;
The bottom of locking lead screw is provided with the spacing ring, the locking ring can follow locking lead screw's axial slip ground cover is located locking lead screw is last, just the bottom surface of locking ring with the top surface looks butt of locking ring.
In a preferred embodiment of the present invention, the locking hook has a sheet-like or column-like structure, and a side surface of the locking hook, which is close to the rail, is an inclined surface that is matched with the bottom surface of the flange plate, and when the base is locked on the rail, the side surface of the locking hook is attached to the bottom surface of the flange plate.
The invention provides a well wall supporting device which comprises at least one hanging scaffold which is placed in a well shaft and at least one anchor rod drilling machine for shaft supporting, wherein a track is arranged on the hanging scaffold along the circumferential direction of the well shaft, and the anchor rod drilling machine for shaft supporting is arranged on the track.
In a preferred embodiment of the present invention, the track includes a first track, a second track and a third track which are annular, the first track, the second track and the third track are concentric, the shaft support jumbolter is slidably connected with the first track and the second track through a travelling wheel and a guide wheel, respectively, and the shaft support jumbolter can be locked on the third track through a locking mechanism.
In a preferred embodiment of the present invention, the third track is made of i-steel, and the locking mechanism is locked at a flange plate at the top of the i-steel.
In a preferred embodiment of the present invention, the number of hanging scaffold is plural, and each hanging scaffold is arranged in multiple layers at intervals along the axial direction of the shaft.
In a preferred embodiment of the invention, the hoist plate is connected to one end of a plurality of hoist ropes, the other end of each hoist rope being connected to a hoist on the ground for lowering the hoist plate into the well bore.
From the above, the anchor rod drilling machine for shaft support and the well wall support device have the characteristics and advantages that: the anchor rod drilling machine body is hinged to the base through the main beam, a first oil cylinder is hinged between the main beam and the anchor rod drilling machine body, a second oil cylinder is hinged between the main beam and the base, the pitching angle of the anchor rod drilling machine body in the vertical direction can be adjusted by controlling the expansion and contraction amount of a piston rod in the first oil cylinder, the corner of the main beam can be adjusted by controlling the expansion and contraction amount of the piston rod in the second oil cylinder, and then the lifting height of the anchor rod drilling machine body in the vertical direction can be adjusted, so that the anchor rod drilling machine body can be accurately moved to the operation position on a well wall, and the safety and the operation efficiency of shaft support operation are greatly improved.
Drawings
The following drawings are only for purposes of illustration and explanation of the present invention and are not intended to limit the scope of the invention.
Wherein:
fig. 1 is a schematic structural view of an jumbolter for shaft support according to the present invention.
Fig. 2 is a partial enlarged view of the position a in fig. 1.
FIG. 3 is a schematic structural view of a borehole wall supporting apparatus according to the present invention.
Figure 4 is a top view of the borehole wall supporting apparatus of the present invention.
The reference numerals in the invention are:
1. roof bolter for shaft support; 101. A roof bolter body;
102. a base; 103. A main beam;
104. A first cylinder; 105. A second cylinder;
106. A walking wheel; 107. A guide wheel;
108. A locking mechanism; 1081. A connecting beam;
1082. A locking hook; 1083. A locking ring;
1084. a connecting rod; 1085. Locking the screw rod;
1086. a locking seat; 1087. A limiting ring;
2. A hanging scaffold; 201. A first track;
202. A second track; 203. A third track;
3. a lifting rope.
Detailed Description
For a clearer understanding of technical features, objects, and effects of the present invention, a specific embodiment of the present invention will be described with reference to the accompanying drawings.
Embodiment one
As shown in fig. 1 and 2, the invention provides a shaft support jumbolter, which comprises a jumbolter body 101, a first oil cylinder 104 and a second oil cylinder 105, wherein the first oil cylinder 104 is used for adjusting the pitching angle of the jumbolter body 101 in the vertical direction, and the second oil cylinder 105 is used for adjusting the lifting height of the jumbolter body 101 in the vertical direction. Wherein: the jumbolter body 101 is articulated with one end of the girder 103, and the other end of the girder 103 is articulated with the base 102 below the jumbolter body 101, and a first oil cylinder 104 is articulated between the jumbolter body 101 and the girder 103, and a second oil cylinder 105 is articulated between the girder 103 and the base 102, and the base 102 can be rotationally arranged in a shaft along the circumferential direction of the shaft.
According to the invention, the anchor rod drilling machine body 101 is hinged with the base 102 through the main beam 103, the first oil cylinder 104 is hinged between the main beam 103 and the anchor rod drilling machine body 101, the second oil cylinder 105 is hinged between the main beam 103 and the base 102, in the actual operation process, the vertical pitching angle of the anchor rod drilling machine body 101 can be adjusted by controlling the expansion and contraction amount of a piston rod in the first oil cylinder 104, the vertical rotation angle of the main beam 103 can be adjusted by controlling the expansion and contraction amount of the piston rod in the second oil cylinder 105, the vertical lifting height of the anchor rod drilling machine body 101 can be further adjusted, the anchor rod drilling machine body 101 can be accurately moved to the operation position on a well wall to perform anchor net spraying or temporary limiting operation on a pipe slice, the anchor rod drilling machine body 101 can be moved to any position in the circumferential direction of the well wall along a track according to actual operation requirements, the operation is convenient and flexible to move, the safety and the operation efficiency of shaft support operation are greatly improved, and the anchor rod drilling machine is suitable for being used in shaft operation.
In an alternative embodiment of the present invention, as shown in fig. 1 to 4, an annular track is disposed in the shaft, the base 102 is movably disposed on the annular track in the shaft, the annular track is disposed along the circumference of the shaft and is coaxial with the shaft, and a locking mechanism 108 capable of locking the base 102 on the track is disposed at the bottom of the base 102, so that the jumbolter body 101 can be locked by the locking mechanism 108 after being adjusted in position on the track.
Specifically, as shown in fig. 1, one end of the main beam 103 is hinged to the middle position of the bottom of the jumbolter body 101, and the other end of the main beam 103 is hinged to the top of the base 102; the cylinder body of the first oil cylinder 104 is hinged with a transverse stiffening beam positioned on the main beam 103 (the transverse stiffening beam is connected to the position, close to the base 102, of the main beam 103), the end part of a piston rod of the first oil cylinder 104 is hinged with the bottom of the jumbolter body 101, and then the inclination angle of the jumbolter body 101 can be changed vertically by controlling the expansion and contraction amount of the piston rod of the first oil cylinder 104; the cylinder body of the second oil cylinder 105 is hinged with the middle position of the top of the base 102, the end part of the piston rod of the second oil cylinder 105 is hinged with the middle position of the main beam 103, and then the telescopic amount of the piston rod of the second oil cylinder 105 is controlled to push the jumbolter body 101 to change the lifting height vertically.
Further, an inclination angle acquisition device is provided on the base 102, for acquiring an inclination angle of the jumbolter body 101. Wherein the tilt angle acquisition device includes, but is not limited to, a tilt angle sensor.
In an alternative embodiment of the present invention, as shown in fig. 1, a travelling wheel 106 capable of driving the base 102 to move along a track is disposed at the bottom of the base 102, the travelling wheel 106 is slidably connected with the track, a driving motor is disposed on the base 102, a main shaft of the travelling wheel 106 is connected with an output shaft of the driving motor, and the travelling wheel 106 can be driven to rotate by the driving motor, so as to drive the base 102 and the jumbolter body 101 to move along the track. Of course, the driving motor is not required, and the base 102 and the jumbolter body 101 can be moved along the track only by manually pushing the base 102.
In this embodiment, as shown in fig. 1, a guiding wheel 107 capable of guiding the movement of the base 102 on the track is further provided at the bottom of the base 102, the guiding wheel 107 is slidably connected to the track, and the guiding wheel 107 only plays a role in guiding and supporting the base 102.
Specifically, as shown in fig. 1 and fig. 4, the travelling wheels 106, the guide wheels 107 and the locking mechanism 108 are arranged side by side and at intervals at the bottom of the base 102, wherein three tracks are arranged in the shaft, namely, a first track 201, a second track 202 and a third track 203, the first track 201, the second track 202 and the third track 203 are concentric, the travelling wheels 106 can be slidably arranged on the first track 201, the guide wheels 107 can be slidably arranged on the second track 202, and the locking mechanism 108 can be locked on the third track 203.
In an alternative embodiment of the present invention, as shown in fig. 1 and 2, the locking mechanism 108 includes two connection beams 1081 disposed vertically, the two connection beams 1081 are disposed below the base 102 and are respectively located at two sides of the track, the top ends of the two connection beams 1081 are fixedly connected with the bottom of the base 102, the bottom ends of the two connection beams 1081 are respectively hinged with one ends of the locking hooks 1082, a locking ring 1083 capable of moving up and down (i.e. performing a lifting motion in a vertical direction) is disposed between the two connection beams 1081 and above the track, one ends of the two connection rods 1084 are hinged to the locking ring 1083, the other end of one connection rod 1084 is hinged to the middle position of the corresponding locking hook 1082, and the other end of the other connection rod 1084 is hinged to the middle position of the corresponding other locking hook 1082. Because the locking ring 1083 can move up and down, when the locking ring 1083 drives the two connecting rods 1084 to move up, the two connecting rods 1084 respectively drive the two locking hooks 1082 to rotate in a direction close to the track, and the rotation directions of the two locking hooks 1082 are opposite until the two locking hooks 1082 respectively abut against the bottoms of the flange plates (the top of the track is provided with the flange plates along the horizontal direction) on the track, so as to lock the base 102 on the track, and further achieve the locking effect on the jumbolter body 101.
Further, as shown in fig. 2, the locking mechanism 108 further includes a locking seat 1086, the base 102 is a hollow plate structure arranged along a horizontal direction, the locking seat 1086 is fixedly mounted in the base 102, a threaded hole is formed in the locking seat 1086, a locking screw 1085 is arranged in the threaded hole, the locking screw 1085 is in threaded connection with the threaded hole, the locking screw 1085 is vertically arranged, and the bottom of the locking screw 1085 extends below the base 102; the bottom of the locking screw 1085 is provided with a limit ring 1087, the locking ring 1083 is slidably sleeved on the locking screw 1085 along the axial direction of the locking screw 1085, and the bottom surface of the locking ring 1083 is abutted with the top surface of the locking ring 1083. The locking screw 1085 is screwed to move up and down in the threaded hole, so that the locking ring 1083 and the connecting rod 1084 are driven to move up and down, and the locking hook 1082 is driven to rotate and complete the locking action.
In this embodiment, the locking screw 1085 may be connected to an output shaft of a driving motor, and the driving motor drives the locking screw 1085 to rotate, so as to control the locking ring 1083 to slide up and down. Of course, the locking screw 1085 may be manually screwed by a worker to adjust the position of the locking ring 1083.
In this embodiment, the locking screw 1085 is integrally formed with a stop collar 1087, the stop collar 1087 may be the nut position of the locking screw 1085,
In this embodiment, as shown in fig. 2, the locking hook 1082 has a sheet-like or column-like structure, the side surface of the locking hook 1082 close to the track is an inclined surface matched with the bottom surface of the flange plate, and when the base 102 is locked on the track, the side surface of the locking hook 1082 is attached to the bottom surface of the flange plate, so as to achieve the purpose of stable locking.
The jumbolter for shaft support has the characteristics and advantages that;
1. In the operation process of the jumbolter for shaft support, the pitching angle of the jumbolter body 101 in the vertical direction is adjustable by controlling the expansion and contraction amount of the piston rod in the first oil cylinder 104, the rotation angle of the main beam 103 in the vertical direction is adjustable by controlling the expansion and contraction amount of the piston rod in the second oil cylinder 105, the lifting height of the jumbolter body 101 in the vertical direction is further adjusted, and the jumbolter body 101 can be accurately moved to the operation position on the well wall to operate the well wall through the control and adjustment, so that the operation efficiency is improved.
2. The jumbolter for shaft support is movably arranged on the track and can be locked on the track through the locking mechanism 108, so that the jumbolter has good stability in an operation state; in addition, the jumbolter body 101 can move to any position along the circumference of the shaft along the track according to actual operation requirements, so that the operation is convenient, the movement is flexible, and the safety and the operation efficiency of shaft support operation are greatly improved.
Second embodiment
As shown in fig. 1 to 4, the present invention provides a well wall supporting device, which comprises at least one hanging scaffold 2 and at least one shaft supporting jumbolter 1, wherein the hanging scaffold 2 is lowered into a well, a track is arranged at the top of the hanging scaffold 2 along the circumferential direction of the well, and the shaft supporting jumbolter 1 is slidably and lockably arranged on the track.
In an alternative embodiment of the invention, the rotatable hanging scaffold 2 can be used to replace the arrangement of the track on the hanging scaffold 2, so that the circumferential movement of the anchor drilling machine 1 for shaft support in the shaft can be satisfied.
In an alternative embodiment of the present invention, as shown in fig. 1 and 4, the rail includes a first rail 201, a second rail 202 and a third rail 203 having a circular shape, the first rail 201, the second rail 202 and the third rail 203 are concentrically arranged, the shaft support jumbolter 1 is slidably connected with the first rail 201 through the traveling wheels 106, the shaft support jumbolter 1 is slidably connected with the second rail 202 through the guide wheels 107, the shaft support jumbolter 1 is driven to move along the first rail 201 through the traveling wheels 106, and the shaft support jumbolter 1 is guided and supported through the guide wheels 107. The shaft support jumbolter 1 can be locked to the third rail 203 by means of the locking mechanism 108.
Specifically, as shown in fig. 2, the third track 203 is made of i-steel, and a flange plate at the bottom of the i-steel is fixed at the top of the hanging scaffold 2, and the locking mechanism 108 is locked at the flange plate at the top of the i-steel.
In an alternative embodiment of the present invention, as shown in fig. 3, the number of hanging scaffold 2 is plural, and each hanging scaffold 2 is arranged in multiple layers at intervals along the axial direction of the well bore.
In an alternative embodiment of the invention, as shown in fig. 3, the hanging scaffold 2 is connected to one end of a plurality of hanging ropes 3, the other end of each hanging rope 3 is connected to a lifting device on the ground, and the hanging scaffold 2 is lowered to a preset position in a shaft through the hanging ropes 3.
The working process of the invention is as follows: when the wall of the shaft needs to be supported, an operator walks on the hanging scaffold 2, controls the shaft support roof bolter 1 to automatically move or pushes the shaft support roof bolter 1 to move to an operation area, then locks the shaft support roof bolter 1 at an operation position by rotating a locking screw 1085 on a locking mechanism 108, and then adjusts the vertical height of the shaft support roof bolter 1 by controlling the expansion and contraction amount of a piston rod of a second oil cylinder 105.
The well wall supporting device has the characteristics and advantages that;
the well wall supporting device is simple in structure, convenient to operate, good in using effect, capable of improving the anchor rod beating rate, saving operation and labor cost, and suitable for popularization and use in the field of shaft operation.
The foregoing is illustrative of the present invention and is not to be construed as limiting the scope of the invention. Any equivalent changes and modifications can be made by those skilled in the art without departing from the spirit and principles of this invention, and are intended to be within the scope of this invention.
Claims (12)
1. The utility model provides a shaft is roof-bolter for support, its characterized in that, shaft is roof-bolter for support includes the roof-bolter body, adjusts the first hydro-cylinder of roof-bolter body vertical pitch angle and the regulation the second hydro-cylinder of roof-bolter body vertical height that goes up and down, wherein:
The anchor drilling machine comprises an anchor drilling machine body, a main beam, a first oil cylinder, a second oil cylinder, a base, a first oil cylinder, a second oil cylinder and a support, wherein the anchor drilling machine body is hinged with one end of the main beam, the other end of the main beam is hinged with the base below the anchor drilling machine body, the first oil cylinder is hinged between the anchor drilling machine body and the main beam, and the second oil cylinder is hinged between the main beam and the base; the base can be rotationally arranged in the shaft along the circumferential direction of the shaft;
An annular track is arranged in the shaft along the circumferential direction of the shaft, and a locking mechanism capable of locking the base on the track is arranged at the bottom of the base;
The locking mechanism comprises two connecting beams which are arranged below the base and are respectively positioned at two sides of the track, the top ends of the two connecting beams are connected with the bottom of the base, the bottom ends of the two connecting beams are respectively hinged with one ends of locking hooks, locking rings which can move up and down are arranged between the connecting beams and above the track, one ends of two connecting rods are respectively hinged to the locking rings, the other ends of the two connecting rods are respectively hinged to the corresponding middle positions of the locking hooks, and when the locking rings drive the two connecting rods to move upwards, the two connecting rods respectively drive the two locking hooks to rotate to the direction close to the track, and the two locking hooks are respectively in butt joint with the bottoms of flange plates on the track so as to lock the base on the track.
2. A roof bolter for shaft support as claimed in claim 1, wherein one end of the main beam is hinged to a bottom intermediate position of the roof bolter body, and the other end of the main beam is hinged to a top of the base; the cylinder body of the first oil cylinder is hinged with a transverse stiffening beam positioned on the main beam, and the end part of a piston rod of the first oil cylinder is hinged with the bottom of the jumbolter body so as to push the jumbolter body to change the inclination angle in the vertical direction; the cylinder body of the second oil cylinder is hinged with the middle position of the top of the base, and the end part of the piston rod of the second oil cylinder is hinged with the middle position of the main beam so as to push the jumbolter body to change the lifting height vertically.
3. A roof bolter for shaft support as claimed in claim 2, wherein the base is provided at the bottom thereof with a travelling wheel which is capable of moving the base along the track, the travelling wheel being slidably connected to the track.
4. A roof bolter for shaft support as claimed in claim 3, wherein the base is provided with a drive motor, and a main shaft of the travelling wheel is connected with an output shaft of the drive motor.
5. A roof bolter for shaft support as claimed in claim 1 or 3, wherein the base is provided at its bottom with guide wheels for guiding movement of the base on the rail, the guide wheels being slidably connected to the rail.
6. The roof bolter for shaft support according to claim 1, wherein the locking mechanism further comprises a locking seat fixedly arranged in the base, a threaded hole is formed in the locking seat, a locking screw rod is arranged in the threaded hole, the locking screw rod is vertically arranged, and the bottom of the locking screw rod extends out to the lower side of the base;
The bottom of locking lead screw is provided with the spacing ring, the locking ring can follow locking lead screw's axial slip ground cover is located locking lead screw is last, just the bottom surface of locking ring with the top surface looks butt of locking ring.
7. The roof bolter for shaft support according to claim 1, wherein the locking hook has a sheet-like or columnar structure, a side surface of the locking hook, which is close to the rail, is an inclined surface matched with the bottom surface of the flange plate, and when the base is locked on the rail, the side surface of the locking hook is attached to the bottom surface of the flange plate.
8. A well wall supporting device, characterized in that the well wall supporting device comprises at least one hanging scaffold which is placed in a shaft and at least one anchor drilling machine for shaft support according to any one of claims 1 to 7, a track is arranged on the hanging scaffold along the circumferential direction of the shaft, and the anchor drilling machine for shaft support is arranged on the track.
9. A borehole wall supporting apparatus according to claim 8, wherein the track comprises a first track, a second track and a third track which are annular, the first track, the second track and the third track are concentric, the shaft supporting jumbolter is slidably connected with the first track and the second track through travelling wheels and guide wheels respectively, and the shaft supporting jumbolter is lockable on the third track through a locking mechanism.
10. The borehole wall supporting apparatus as claimed in claim 9, wherein the third track is made of i-steel, and the locking mechanism is locked at a flange plate at the top of the i-steel.
11. The borehole wall supporting apparatus as recited in claim 8 wherein said plurality of trays are arranged in a plurality of spaced apart layers along an axis of said borehole.
12. A borehole wall supporting apparatus as recited in claim 8 wherein said hanging scaffold is connected to one end of a plurality of hanging strings, the other end of each of said hanging strings being connected to a lifting device on the ground for lowering said hanging scaffold into said borehole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111610534.2A CN114293924B (en) | 2021-12-27 | 2021-12-27 | Roof bolter and wall of a well strutting arrangement for shaft support |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111610534.2A CN114293924B (en) | 2021-12-27 | 2021-12-27 | Roof bolter and wall of a well strutting arrangement for shaft support |
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| CN114293924B true CN114293924B (en) | 2024-09-20 |
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| CN115163104B (en) * | 2022-07-05 | 2023-09-22 | 四川省煤田地质工程勘察设计研究院 | A hydraulic advanced pre-split drill pipe pushing device, fully mechanized excavator and construction method |
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| CN212803072U (en) * | 2020-09-01 | 2021-03-26 | 天津同鑫煤矿机械制造有限公司 | Mining jumbolter equipment |
| CN113530551A (en) * | 2021-08-30 | 2021-10-22 | 河南科技大学 | A shaft excavation method suitable for geology and a shaft roadheader support system |
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| CN114293924A (en) | 2022-04-08 |
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