CN106761863B - A kind of mine support hand-held anchor pole angle correction device and its application method - Google Patents

Abstract

The invention belongs to mine support technology, Tunnel Engineering, underground space engineering fields, and in particular to a kind of mine support hand-held anchor pole angle correction device and its application method.Device is formed by rigidly fastening main body, rectangle slideway, rigid support plate and 360 degree of protractors；Wherein rigidity fastening body shape is the hollow cylinder of the lateral opening to match with roof-bolter size, is equipped with main body fastening screw in the side of opening, 360 degree of protractors are welded in rigidity fastening main body；Rectangle slideway one end connection rigidity fastening main body, the other end connect rigid support plate, and rectangle slideway is equipped with rectangle slide plate, and rectangle slide plate position is fixed by fastening bolt, and rectangle slideway is connected by connecting rod with rigidity fastening main body.For the mine support hand-held anchor pole angle correction device of the present invention in down-hole, Tunnel Engineering, underground space engineering, installation is simple, and transport is flexible, and convenient disassembly is less prone to failure, and scene can dismantle, replace at any time, and reliability is high.

Description

A hand-held bolt angle correction device for mine support and its application method

technical field

The invention belongs to the technical field of mine support, tunnel engineering and underground space engineering, and in particular relates to a hand-held bolt angle correction device for mine support and a method for using the same.

Background technique

Hand-held bolters are widely used in the field of coal mine and rock mass support. Because it is difficult to grasp the angle of bolt driving by manual hand-holding, the deflection angle is judged based on the experience of on-site construction personnel. Usually, human judgment and construction design It is difficult to accurately match the angle of the bolt, and the hand-held bolter is relatively cumbersome. Without correction facilities, human error is obvious. These all lead to the reduction of the designed support effect and cannot meet the design expectations. Therefore, a method that can correct the bolt is needed. The machine angle device reduces errors caused by artificial fatigue and human judgment factors.

Contents of the invention

Aiming at the problems existing in the prior art, the present invention provides a hand-held bolt angle correction device for mine support and its use method. Bolt bolts are accurately drilled to a preset deflection angle, thereby improving the underground support effect.

The mine support hand-held bolt angle correction device for realizing the purpose of the present invention is composed of a rigid fastening body, a rectangular slideway, a rigid support plate and a 360-degree protractor; wherein the shape of the rigid fastening body is the same as the size of the bolter A matching hollow cylinder with a side opening, with a main body fastening screw on one side of the opening, the 360-degree protractor is welded on the rigid fastening main body; one end of the rectangular slideway is connected to the rigid fastening main body, and the other end The rigid support plate is connected, and a rectangular sliding piece is arranged on the rectangular sliding track, and the position of the rectangular sliding piece is fixed by fastening bolts, and the rectangular sliding track is connected with the rigid fastening main part through a connecting rod.

Wherein, the rigid fastening body and the rigid support plate are made of rigid and non-deformable cast iron, steel, or explosion-proof, impact-proof and anti-static lightweight hard ABS material, TPU material, and the rectangular slideway and 360-degree protractor are made of steel components.

The rectangular slideway adopts a steel reinforcement groove, and the sliding pieces in the groove are thick steel plate rectangular sliding pieces.

The connection between the rectangular slideway and the rigid fastening body and the rigid support plate is a rigid connection, and the connection with the connecting rod is a hinge. After the fastening bolts are tightened, the whole system will not loosen and deform.

The 360-degree protractor is provided with a free plumb weight that can be wrapped or retracted.

The method of using the above-mentioned hand-held bolt angle correction device for mine support is carried out according to the following steps:

(1) Pre-binding preparation of the device: wipe the body of the hand-held bolter clean to prevent coal impurities from causing the body of the bolt to be uneven and affecting the stability of the installation;

(2) Device binding: According to the height and usage habits of the workers on site, fix the mine support hand-held bolt angle correction device on the flat part of the body of the bolter, adjust the main fastening screw, so that the mine support hand-held anchor The rod angle correction device is rigidly and tightly connected with the bolter;

(3) Device inspection after binding: The rigid support plate of the hand-held bolt angle correction device for mine support after binding is kept at the same horizontal position as the end of the bolt machine without a bolt, and the bolt machine is aligned When standing on a flat position, the angle indicated by the free plumb of the 360-degree protractor is 0 degrees;

(4) Adjust the angle of the bolt driven into the rock mass: place the bolter horizontally or upside down, at this time, the rigid support plate of the hand-held bolt angle correction device for mine support is close to the flat wall or ground, and the support plate is close to the flat Keep still after the wall or the ground is leveled, loosen the fastening bolts on the rectangular slide, and slide the slide to make the bolter deflect at an angle, and read the deflection angle of the 360-degree protractor from the vertical point of the free pendulum until the deflection After reaching the designed deflection angle of the bolter, tighten the fastening bolts of the rectangular slideway. At this time, the mine support hand-held bolt angle correction device and the bolter form a rigid whole that is not loose or deformed;

(5) Bolting: Check and confirm that there is no looseness between the mine support hand-held bolt angle correction device and the bolter, wrap the free plumb, start construction, and drill the bolt with a pre-designed angle;

(6) End of construction or angle adjustment: At the end of construction, adjust the fastening screw on the rigid fastening body to remove the angle correction device for the mine support hand-held bolt; when a new angle needs to be adjusted, follow step (1) Re-adjust the angle design.

Compared with prior art, feature and beneficial effect of the present invention are:

(1) Compared with the fixed large-scale bolter of the prior art, in the underground construction of coal mines where the drilling angle of the bolt is required, the structure of the hand-held bolt angle correction device for mine support of the present invention is simpler in structure and more operable. High, the materials involved in the device are common materials in daily life, low cost and easy to replace;

(2) Compared with the fixed large bolter in the prior art, most of the large drilling rigs need to be transported by rail, and the transportation road is required to be relatively flat. The hand-held bolt angle correction device for mine support of the present invention can meet the needs of all personnel in the underground space and tunnel engineering site. It can be transported to the construction area, and the transportation mode is more flexible;

(3) Compared with the traditional large-scale fixed bolter that requires precise angles, the hand-held bolt angle correction device for mine support of the present invention can arrange multiple operating points to operate simultaneously according to the number of personnel and the need for on-site activity space. The number of layouts is flexible and unlimited;

(4) Most fixed bolters can only drill in one direction at one place, but the hand-held bolt angle correction device for mine support of the present invention can be arranged on the upper roof, left side wall, and right side wall at the same time, Simultaneously perform angle correction;

(5) When using the hand-held bolt angle correcting device for mine support of the present invention, after the angle is adjusted, the rigid support plate of the corrector is firmly attached to the coal wall or rock wall to be constructed, and the designed angle can be produced. The deflection angle can be adjusted at any time according to the design, precise and flexible;

(6) The hand-held bolt angle correction device for mine support of the present invention is easy to install, flexible to transport, easy to disassemble, and not prone to failure in underground, tunnel engineering, and underground space engineering. It can be disassembled and replaced at any time on site, and is extremely reliable. high.

Description of drawings

Fig. 1 is the front view of the structure of the hand-held bolt angle correction device for mine support of the present invention;

Fig. 2 is a structural top view of the mine support hand-held bolt angle correction device of the present invention;

Fig. 3 is a left view of the structure of the hand-held bolt angle correction device for mine support of the present invention;

Fig. 4 is the detailed structural diagram of the rectangular slideway in Fig. 1～3;

Fig. 5 is a schematic diagram of the device in which the protractor deflects 5 degrees during the construction of the sidewall coal mass/rock mass in Embodiment 1 of the present invention;

Fig. 6 is a schematic diagram of a device in which the protractor deflects 5 degrees during construction of the top coal mass/rock mass in Example 2 of the present invention;

Fig. 7 is a schematic diagram of the worker standing the device upside down on the ground to adjust the angle of the device in Example 3 of the present invention;

Fig. 8 is a schematic diagram of angle adjustment by a worker leaning against a vertical wall to face the device in Example 1 of the present invention;

In the figure: 1: rigid fastening body; 2: rectangular slideway; 3: rigid support plate; 4: 360 protractor; 5: main body fastening screw; 6: connecting rod; 7: fastening bolt; 8: anchor rod machine; 9: free plumb; 10: rectangular slide; 11: construction workers.

Detailed ways

The mine support hand-held bolt angle correction device of the embodiment of the present invention, as shown in Figures 1 to 8, is composed of a rigid fastening body 1, a rectangular slideway 2, a rigid support plate 3 and a 360° angle measuring device 4; wherein The shape of the rigid fastening body 1 described above is a hollow cylinder with a side opening matching the size of the bolter 8, and a main body fastening screw 5 is provided on one side of the opening, and the 360° protractor 4 is welded on the rigid fastening body. On the main body 1; one end of the rectangular slideway 2 is connected to the rigid fastening main body 1, and the other end is connected to the rigid support plate 3. The rectangular slideway 2 is provided with a rectangular sliding piece 9, and the position of the rectangular sliding piece 9 is fixed by the fastening bolt 7 , the rectangular slideway 2 is connected with the rigid fastening main body 1 through the connecting rod 6 .

Wherein, the rigid fastening body 1 and the rigid support plate 3 are made of cast iron, steel or rigid plastics that are not easily deformed, such as explosion-proof, impact-proof and anti-static light rigid ABS material, TPU material, rectangular slideway and 360 degree protractor Steel parts are adopted, and the rectangular slideway 2 and the 360 protractor 4 adopt steel parts.

Described rectangular slideway 2 adopts steel bar groove, and rectangular sliding piece 9 is the rigid sliding piece of thick steel plate.

The connection between the rectangular slideway 2 and the rigid fastening body 1 and the rigid support plate 3 is a rigid connection, and the connection with the connecting rod 6 is a hinge.

The 360° protractor 4 is provided with a free plumb weight that can be wound up or retracted.

Example 1

In this embodiment, the hand-held bolt angle correction device for mine support shown in the figure is used to deflect the bolt constructed on the side wall of the coal mass or rock mass by 5° and drive into the coal rock wall, as shown in Figure 5 for the engineering effect and Figure 8 Angle adjustment shown, follow the steps below:

(1) Pre-binding preparation of the device: wipe the body of the hand-held bolter clean to prevent impurities such as coal from causing the body of the bolt to be uneven and affect the stability of the installation;

(2) Device binding: According to the height and usage habits of the workers on site, fix the mine support hand-held bolt angle correction device on the flat part of the body of the bolter, adjust the main fastening screw, so that the mine support hand-held anchor The rod angle correction device is rigidly connected with the bolter;

(3) Device inspection after binding: The rigid support plate of the hand-held bolt angle correction device for mine support after binding is kept at the same horizontal position as the end of the bolt machine without a bolt, and the bolt machine is aligned When standing on a flat position, the angle indicated by the free plumb of the 360-degree protractor is 0 degrees;

(4) Adjust the angle of the bolt driving into the rock mass: place the bolter horizontally, at this time, the rigid support plate of the hand-held bolt angle correction device for mine support is close to the flat side wall coal/rock mass wall, and the support plate Keep still after clinging to the flat wall, loosen the fastening bolts on the rectangular slideway, and slide the slide to make the bolter deflect at an angle. After deflecting to the designed deflection angle of the bolter 5 degrees, tighten the fastening bolts of the rectangular slideway. At this time, the mine support hand-held bolt angle correction device and the bolter form a rigid whole;

(5) Bolting: Check and confirm that there is no looseness between the mine support hand-held bolt angle correction device and the bolter, wrap the free plumb, start construction, and drill the bolt at the designed angle;

(6) End of construction or angle adjustment: At the end of construction, adjust the fastening screws on the rigid fastening body to remove the mine support hand-held bolt angle correction device; when it is necessary to adjust the angle, follow step (1) again Angle design adjustments.

Example 2

In this embodiment, the hand-held bolt angle correction device for mine support shown in the figure is used to deflect the anchor bolt constructed on the roof of the coal body or rock mass at an angle of 5° and drive into the coal rock wall, as shown in Figure 6, according to the following Steps to proceed:

(1) Pre-binding preparation of the device: wipe the body of the hand-held bolter clean to prevent impurities such as coal from causing the body of the bolt to be uneven and affect the stability of the installation;

(2) Device binding: According to the height and usage habits of the workers on site, fix the mine support hand-held bolt angle correction device on the flat part of the body of the bolter, adjust the main fastening screw, so that the mine support hand-held anchor The rod angle correction device is rigidly connected with the bolter;

(3) Device inspection after binding: the rigid support plate of the hand-held bolt angle correction device for mine support after binding is kept at the same horizontal position as the end of the bolt machine without a bolt, and the bolt machine is turned upside down When placed in a flat position, the angle indicated by the free plumb of the 360-degree protractor is 0 degrees;

(4) Adjust the angle of the bolt driven into the rock mass: place the bolter upside down, at this time, the rigid support plate of the hand-held bolt angle correction device for mine support is close to the flat roof wall, and the support plate is kept close to the roof wall. Do not move, loosen the fastening bolts on the rectangular slideway, and slide the slide. At this time, the bolter will deflect at an angle. Read the deflection angle of the 360-degree protractor from the vertical point of the free pendulum until the deflection reaches the design of the bolter. After the deflection angle is 5 degrees, tighten the fastening bolts of the rectangular slideway. At this time, the mine support hand-held bolt angle correction device and the bolt machine form a rigid whole;

(5) Bolting: Check and confirm that there is no looseness between the mine support hand-held bolt angle correction device and the bolter, wrap the free plumb, start construction, and drill the bolt at the designed angle;

(6) End of construction or angle adjustment: At the end of construction, adjust the fastening screws on the rigid fastening body to remove the mine support hand-held bolt angle correction device; when it is necessary to adjust the angle, follow step (1) again New angle design tweaks.

Example 3

In this embodiment, the hand-held bolt angle correction device for mine support shown in the figure is used to correct the angle of the bolt constructed on the roof of the coal body or rock mass, as shown in Figure 7, according to the following steps:

(1) Pre-binding preparation of the device: wipe the body of the hand-held bolter clean to prevent impurities such as coal from causing the body of the bolt to be uneven and affecting the stability of the installation;

(2) Device binding: According to the height and usage habits of the workers on site, fix the mine support hand-held bolt angle correction device on the flat part of the body of the bolter, adjust the main fastening screw, so that the mine support hand-held anchor The rod angle correction device is rigidly connected with the bolter;

(3) Device inspection after binding: The rigid support plate of the hand-held bolt angle correction device for mine support after binding is kept at the same horizontal position as the end of the bolt machine without a bolt, and the bolt machine is aligned When standing on a flat position, the angle indicated by the free plumb of the 360-degree protractor is 0 degrees;

(4) Adjust the angle of the bolt driven into the rock mass: place the bolter upside down, at this time, the rigid support plate of the hand-held bolt angle correction device for mine support is close to the flat ground, and the support plate remains motionless after being close to the ground , loosen the fastening bolts on the rectangular slideway, and slide the sliding piece. At this time, the bolter will deflect at an angle. Read the deflection angle of the 360-degree protractor from the vertical point of the free pendulum until the deflection reaches the design deflection of the bolter. After the angle is 5 degrees, tighten the fastening bolts of the rectangular slideway. At this time, the mine support hand-held bolt angle correction device and the bolter form a rigid whole;

(5) Bolting: Check and confirm that there is no looseness between the mine support hand-held bolt angle correction device and the bolter, wrap the free plumb, start construction, and drill the bolt at the designed angle;

(6) End of construction or angle adjustment: At the end of construction, adjust the fastening screws on the rigid fastening body to remove the mine support hand-held bolt angle correction device; when it is necessary to adjust the angle, follow step (1) again Angle design adjustments.

Claims (6)

1. a kind of mine support hand-held anchor pole angle correction device, it is characterised in that by rigidly fasten main body, rectangle slideway, just Property support plate and 360 degree of protractors composition；The wherein described rigidity fastening body shape is the side to match with roof-bolter size The hollow cylinder of face opening is equipped with main body fastening screw in the side of opening, and it is tight that described 360 degree of protractors are welded on rigidity Gu in main body；Rectangle slideway one end connection rigidity fastening main body, the other end connect rigid support plate, are set on rectangle slideway There are rectangle slide plate, rectangle slide plate position to be fixed by fastening bolt, rectangle slideway fastens main element phase by connecting rod and rigidity Even.

2. a kind of mine support hand-held anchor pole angle correction device according to claim 1, it is characterised in that described Rigidity fastening main body and rigid support plate are rigid using the lightweight of the on-deformable cast iron of rigidity, steel or explosion-proof protecting against shock antistatic ABS material, TPU materials, rectangle slideway and 360 degree of protractors use iron and steel parts.

3. a kind of mine support hand-held anchor pole angle correction device according to claim 1, it is characterised in that described Rectangle slideway uses steel bar groove, and slide plate is steel plate rectangle slide plate in slot.

4. a kind of mine support hand-held anchor pole angle correction device according to claim 1, it is characterised in that described Connection type between rectangle slideway and rigidity fastening main body and rigid support plate is rigid connection, the connection type with connecting rod It is hinged, bolt to be tightened, which tightens rear whole system, will not occur to loosen deformation.

5. a kind of mine support hand-held anchor pole angle correction device according to claim 1, it is characterised in that described 360 degree of protractors are equipped with the free plummet that can have been twined or pack up.

6. a kind of application method of mine support hand-held anchor pole angle correction device as described in claim 1, feature exist In following the steps below：

（1）Device strapped preparation early period：By hand-held roof-bolter fuselage wiped clean, prevent coal cinder impurity from causing anchor pole fuselage not It is smooth, influence the stability of installation；

（2）Device is strapped：According to field worker height and use habit, mine support hand-held anchor pole angle correction device is consolidated It is scheduled on the smooth place of fuselage of roof-bolter, main body fastening screw is adjusted, makes mine support hand-held anchor pole angle correction device and anchor Bar machine is rigidly connected；

（3）Device inspection after strapped：The rigid support plate of mine support hand-held anchor pole angle correction device after strapped with not Add the end of the roof-bolter of anchor pole to be maintained at the same horizontal position, by roof-bolter is upright be placed on smooth position when, 360 degree of protractors Free vertical freely hang down instruction angle be 0 degree；

（4）Adjustment anchor pole squeezes into rock mass angle：Roof-bolter level or handstand are placed, at this time mine support hand-held anchor pole angle The rigid support plate of apparatus for correcting is close to smooth wall or ground, and support plate is kept not after being close to smooth wall or ground grading It is dynamic, the fastening bolt on rectangle slideway is unclamped, slide plate is slided, makes roof-bolter that angular deflection occur, from the vertical of free pendulum The angle of 360 degree of protractors deflection is read, until after deflecting into the deflection angle of roof-bolter design, tightens the fastening of rectangle slideway Bolt, mine support hand-held anchor pole angle correction device at this time and roof-bolter form one do not loosen, the rigidity that deforms it is whole Body；

（5）Beat anchor pole：It checks and confirms non-loosening between mine support hand-held anchor pole angle correction device and roof-bolter, twined certainly By vertical, construction is proceeded by, gets the anchor pole for being pre-designed angle；

（6）Construction terminates or adjusts the angle：At the end of construction, the rigid fastening screw fastened in main body is adjusted by mine support hand Formula anchor pole angle correction device is held to remove；When needing to adjust new angle, according to step（1）Re-start angle design tune It is whole.