Anchoring assembly for roadway support

Abstract

The present application relates to the technical field of roadway supporting device, provide a kind of roadway supporting anchor rod assembly, base upper end surface is provided with angle conversion device, panel upper end surface is detachably connected with anchor rod machine, one end of anchor rod machine is detachably connected with anchor rod, from end to head on anchor rod, nut, anchor pad, stop plug slurry, expansion device and extension device are sequentially set respectively;The reasonable use of expansion device, i.e. electric telescopic rod is contracted, and pull connection rod two moves to the direction of connection rod one, then the diameter of the connection of the two is larger and larger, so as to avoid the anchor rod in the hole from falling due to vibration, thereby increasing the possibility of damage to manpower, labor and financial resources, the reasonable use of extension device, i.e. cylindrical body one counterclockwise rotation, and sliding rod moves in arc-shaped groove, then cylindrical body one moves to the direction of anchor rod tip, then anchor rod is elongated as a whole, so as to avoid the hole depth too long, the length of anchor rod needs to be made, so as to cause waste of manpower, labor and financial resources.

Description

Technical Field

[0001] This invention relates to the technical field of roadway support devices, specifically an anchor bolt assembly for roadway support. Background Technology

[0002] Anchor bolt support is a reinforcement and support method used in surface engineering such as slopes and deep foundation pits, as well as underground chamber construction such as tunnels and mining areas. It uses metal, wood, polymer or other materials to make rods, which are driven into pre-drilled holes in the surface rock or the rock mass surrounding the chamber. The special structure of the head and body of the rod and the tail plate (which may be omitted) or the bonding effect are used to combine the surrounding rock with the stable rock mass to produce a suspension effect, composite beam effect or reinforcement effect to achieve the purpose of support.

[0003] During coal mining, to prevent mine pressure from damaging mine roadways and harming personnel and equipment, roadway support is necessary. However, due to varying anchoring depths, custom-made anchor bolts are typically required for each roadway, incurring significant manpower and financial costs. Furthermore, anchor bolts generally require an anchoring agent to bond them to the borehole wall and prevent detachment. This method, relying solely on the adhesive force, is susceptible to detachment due to improper installation, leading to safety hazards. Therefore, this invention proposes an anchor bolt assembly for roadway support. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides an anchor bolt assembly for roadway support, which solves the problem in the prior art where anchor bolts are prone to detachment due to vibration caused by improper installation of the anchoring agent, resulting in safety hazards.

[0005] The prior art solution of this invention is as follows:

[0006] An anchor bolt assembly for roadway support includes: a base, an angle changing device disposed on the upper surface of the base, a panel disposed on the upper surface of the angle changing device, an anchor bolt machine detachably connected to the upper surface of the panel, an anchor bolt first detachably connected to one end of the anchor bolt machine, an extension device connected to the other end of the anchor bolt first, and a nut, an anchor plate, a sealing grout, and an extension device sequentially fitted onto the anchor bolt first from its tail to the extension device, and an anchor bolt second connected to the other end of the extension device.

[0007] Furthermore, the extension device includes a first fixed ring and a second fixed ring. A first connecting rod is connected to one side of the first fixed ring, and a second connecting rod is rotatably connected to the end of the first connecting rod away from the first fixed ring. The second connecting rod is connected to the second fixed ring. An electric telescopic rod is provided on one side of the first fixed ring, and the other end of the electric telescopic rod is rotatably connected to one side of the second connecting rod.

[0008] Furthermore, the extension device includes cylinder one, cylinder two, and cylinder three; cylinder one is fitted onto the anchor rod, cylinder one has an arc-shaped groove, cylinder two is fitted onto cylinder one, a sliding rod is provided on one side of cylinder two, the bottom of the sliding rod is slidably connected to the inside of the arc-shaped groove, and cylinder three is fitted onto cylinder two.

[0009] Furthermore, the angle transformation device includes a solid block one, a connecting column one, a connecting rod three, and a connecting rod four; the bottom of the fixing block one is connected to the upper end face of the base, the upper end face of the fixing block one is connected to a baffle, the connecting column one passes through the fixing blocks one on both sides, the connecting rod three is rotatably connected to the connecting column one, the connecting rod three is rotatably connected to the connecting rod four, and the connecting rod four is rotatably connected to the inner side of the fixing block one.

[0010] Furthermore, the angle transformation device also includes a mounting component, a worm gear, a worm, a first gear, a second gear, a second fixing block, and a motor; the mounting component is sleeved on the first connecting column, the worm gear is located between the two mounting components and sleeved on the first connecting column, the worm is meshed with the worm gear, the worm is rotatably connected to the first gear through the second fixing block, the first gear is located on the lower surface of the second fixing block away from the worm, the second gear is located on the same side as the first gear, the second gear is connected to the second fixing block, and the motor is fixedly connected to the second gear.

[0011] Furthermore, the connecting rod one, connecting rod two, and connecting rod three are all arranged in an array centered on the anchor rod.

[0012] Furthermore, both cylinder one and cylinder two have circular holes around their circumference, and the diameter of cylinder three is the same as the diameter of the anchor rod end.

[0013] Furthermore, a pressure sensor and a distance sensor are respectively provided at both ends of the anchor bolt.

[0014] Furthermore, an electric telescopic rod two is connected to the outer side of the cylinder two, and the other end of the electric telescopic rod two is fixed to the inner side of the cylinder three.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. This invention, through the reasonable use of the angle transformation device, utilizes the worm gear and worm to achieve a self-locking function, preventing the worm gear machine from rapidly falling from a height during construction if the connecting rods four and three move downwards. This could result in machine damage or, in severe cases, threaten the safety of workers. Alternatively, once the angle is set, the position of the anchor bolt entering the hole will not be unsuitable due to the movement of workers, thus avoiding the possibility of tunnel collapse.

[0017] 2. The present invention utilizes the extension device in a reasonable manner. When the electric telescopic rod retracts, it pulls the connecting rod 2 towards the direction of the connecting rod 1. As a result, the diameter at the connection point between the two becomes larger and larger. Since the angle at which the anchor rod 1 is inserted is inclined, and the anchor bolt machine will vibrate during operation due to rotation, this effectively fixes the anchor rod 1, preventing it from falling out of the hole due to vibration and thus avoiding damage to manpower, labor, and financial resources. At the same time, it increases the stability of the anchor rod 1 in the hole.

[0018] 3. Through the reasonable use of the extension device, the cylinder rotates counterclockwise and the sliding rod moves in the arc groove. The cylinder moves towards the end of the anchor rod, and the anchor rod extends forward as a whole. The length of the third cylinder is greater than the sum of the length of the second cylinder after extension and the length of the first cylinder. The position of the third cylinder on the anchor rod remains unchanged. This avoids the need to customize the length of the anchor rod due to excessive hole depth, which would otherwise waste manpower, labor and financial resources. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall left side three-dimensional structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall left side three-dimensional structure of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the overall components of the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the outer side of the extension device of the present invention;

[0023] Figure 5 This is a schematic diagram of the internal three-dimensional structure of the extension device of the present invention;

[0024] Figure 6 This is a schematic diagram of the internal three-dimensional structure of the extension device of the present invention;

[0025] Figure 7 yes Figure 1 A magnified view of a portion of point A in the middle.

[0026] In the picture:

[0027] 1. Base; 2. Transformation device; 20. Solid block one; 21. Connecting column one; 22. Connecting rod three; 23. Connecting rod four; 24. Mounting component; 25. Worm gear; 26. Worm; 27. Gear one; 28. Gear two; 29. ​​Fixing block two; 29. ​​Motor; 3. Panel; 4. Anchor bolting machine; 5. Anchor bolt one; 6. Nut; 7. Anchor plate; 8. Anti-blocking grout; 9. Extension device; 90. Fixing ring one; 91. Fixing ring two; 92. Connecting rod one; 93. Connecting rod two; 94. Electric telescopic rod one; 10. Extension device; 100. Cylinder one; 101. Cylinder two; 103. Cylinder three; 104. Sliding rod; 105. Circular hole; 11. Anchor bolt two; 12. Distance sensor; 13. Electric telescopic rod two; 14. Pressure sensor. Detailed Implementation

[0028] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0029] This invention provides a rock bolt assembly for roadway support, comprising: a base 1, an angle changing device 2 disposed on the upper surface of the base 1, a panel 3 disposed on the upper surface of the angle changing device 2, a rock bolt machine 4 detachably connected to the upper surface of the panel 3, a rock bolt first 5 detachably connected to one end of the rock bolt machine 4, an extension device 10 connected to the other end of the rock bolt first 5, and a nut 6, an anchor plate 7, a sealing grout 8, and an extension device 9 sequentially mounted on the rock bolt first 5 from its tail to the extension device 10, and a second rock bolt 11 connected to the other end of the extension device 10.

[0030] The function of the anti-clogging grout 8 is to prevent the anchoring agent from flowing out of the hole before it dries during injection, thus avoiding waste. The anchor plate 7 is located outside the hole and is used in conjunction with the bolt 6 to fix the anchor rod 5, preventing the anchor rod 5 from falling off due to vibration and causing a waste of manpower, labor and financial resources.

[0031] The extension device 9 includes a first fixed ring 90 and a second fixed ring 91. A first connecting rod 92 is connected to one side of the first fixed ring 90. A second connecting rod 93 is rotatably connected to the end of the first connecting rod 92 away from the first fixed ring 90. The second connecting rod 93 is connected to the second fixed ring 91. An electric telescopic rod 94 is provided on one side of the first fixed ring 90. The other end of the electric telescopic rod 94 is connected to one side of the second connecting rod 93.

[0032] As one embodiment of the present invention, when the electric telescopic rod 94 retracts, it pulls the connecting rod 93 to move in the direction of the connecting rod 92. As a result, the diameter of the connection between the two becomes larger and larger, thus avoiding the possibility of the anchor rod 5 in the hole falling off due to vibration, thereby damaging manpower, labor and financial resources.

[0033] The extension device 10 includes a first cylinder 100, a second cylinder 101, and a third cylinder 102. The first cylinder 100 is connected to the first anchor rod 5. The first cylinder 100 has an arc-shaped groove 103. The second cylinder 101 is fitted onto the first cylinder 100. A sliding rod 104 is provided on one side of the second cylinder 101. The bottom of the sliding rod 104 is slidably connected to the inside of the arc-shaped groove 103. The third cylinder 102 is fitted onto the second cylinder 101.

[0034] In one embodiment of the present invention, since the anchor rod 5 enters the hole by rotation, the cylinder 100 rotates counterclockwise, and the sliding rod 104 moves within the arc groove 103. The cylinder 100 then moves towards the anchor rod 11, causing the anchor rod 11 to extend forward as a whole. The length of the cylinder 102 is greater than the sum of the extended length of the cylinder 101 and the length of the cylinder 100. Furthermore, the position of the cylinder 102 on the anchor rod 5 remains unchanged. This avoids the need for custom-made anchor rods to prevent excessive hole depth, which would otherwise waste manpower, labor, and financial resources.

[0035] The angle transformation device 2 includes a solid block 20, a connecting column 21, a connecting rod 22, and a connecting rod 23. The bottom of the fixed block 20 is connected to the upper surface of the base 1. The connecting column 21 passes through the fixed blocks 20 on both sides. The connecting rod 22 is rotatably connected to the connecting column 21. The connecting rod 22 and the connecting rod 23 are rotatably connected. The connecting rod 23 is rotatably connected to the inner side of the fixed block 20. The upper surface of the connecting rod 23 is connected to the panel 3.

[0036] The angle transformation device 2 also includes a mounting component 24, a worm gear 25, a worm 26, a first gear 27, a second gear 28, a second fixing block 29, and a motor 210. The mounting component 24 is sleeved on the first connecting column 21. The worm gear 25 is located between the two mounting components 24 and sleeved on the first connecting column 21. The worm 26 is meshed with the worm gear 25. The worm 26 is rotatably connected to the first gear 27 through the second fixing block 29. The first gear 27 is located on the lower surface of the second fixing block 29 away from the worm 26. The second gear 28 is located on the same side as the first gear 27. The second gear 28 is connected to the second fixing block 29. The motor 210 is fixedly connected to the second gear 28.

[0037] In one embodiment of the present invention, the drive shaft of the motor 210 drives the second gear 28 to rotate. Since the second gear 28 is internally meshed with the first gear 27, the first gear 27 and the second gear 28 rotate in opposite directions. The first gear 27 drives the worm gear 26 to rotate in the same direction, thereby driving the worm wheel 25 to rotate in the same direction. That is, by moving the first connecting column 21 counterclockwise, the fourth connecting rod 23 and the third connecting rod 22 can be driven to move upward, which increases the angle between the panel 3 and the horizontal plane. The worm wheel 25 and the worm gear 26 play a self-locking role to prevent the fourth connecting rod 23 and the third connecting rod 22 from moving downward during construction, which would cause the anchor bolting machine 4 to fall rapidly from a height. This could damage the machine or seriously threaten the safety of the workers. The baffle 214 is used to fix the anchor bolting machine 4 and prevent it from slipping when the angle increases.

[0038] In one embodiment of the present invention, connecting rod 1 92, connecting rod 2 93, and connecting rod 3 94 are arranged in an array around anchor rod 5. This increases the friction between connecting rod 2 93 and connecting rod 3 94 and the hole, reducing the possibility of anchor rod 5 slipping out of the hole.

[0039] As one embodiment of the present invention, both cylinder 100 and cylinder 2 101 are surrounded by circular holes 105 to facilitate the outward flow of anchoring agent and to fix the anchor rod 5 as a whole. The diameter of cylinder 3 103 is the same as the diameter of the end of the anchor rod 5, so that the anchor rod 5 can be smoothly drilled into the hole, preventing the anchor rod 5 from being wasted due to the cylinder 3 103 being too large and the hole being too small, thus saving manpower, labor and financial resources.

[0040] As one embodiment of the present invention, the ends of the second anchor bolt 11 are respectively equipped with a pressure sensor 14 and a distance sensor 12. The pressure sensor 14 measures the pressure bearing capacity of the hole. If the hole cannot be drilled further, the pressure sensor 14 will issue a warning to avoid the tunnel from collapsing during the construction process and causing damage to personnel, environment and equipment.

[0041] In one embodiment of the present invention, an electric telescopic rod 13 is connected to the outer side of the second cylinder 101. The other end of the electric telescopic rod 13 is fixed to the inner side of the third cylinder 102. Since the anchor rod 5 enters the hole by rotation, it promotes the operation of the extension device 10. However, if the hole is not very deep, after the extension device 10 operates, the rear end of the anchor rod 5 will be too long and remain outside the hole, which will prevent the nut 6 and the anchor plate 7 from matching, thereby increasing the possibility of the anchor rod 5 falling out of the hole, resulting in the loss of manpower, labor and financial resources. The electric telescopic rod 13 is located below the sliding rod 104, thereby limiting the sliding rod 104.

[0042] Specific working principle:

[0043] Preparation: During the anchor bolt fixing process, the anchor bolt machine 4 needs to be raised to a certain angle and manually aligned. During this process, the operator may become fatigued, causing the anchor bolt machine 4 to tilt and change angle, potentially leading to the anchor bolt 5 not rotating into the hole along the previously drilled path and damaging the inner wall of the hole. Therefore, the anchor bolt machine 4 is fixed to the panel 3 of the angle changing device 2. Then, the motor 210 is started. The drive shaft of the motor 210 drives the gear 28 to rotate clockwise. Because gear 28 is internally meshed with gear 27, it drives gear 27 to move counterclockwise. 27 drives the worm gear 26 to rotate, which in turn drives the worm wheel 25 to rotate counterclockwise. This counterclockwise rotation of the connecting column 1 21 drives the connecting rod 4 23 and connecting rod 3 22 to move upward, thus increasing the angle between the panel 3 and the horizontal plane. The worm wheel 25 and worm gear 26 have a self-locking function to prevent the connecting rod 4 23 and connecting rod 3 22 from moving downward during construction, which would cause the anchor bolting machine 4 to fall rapidly from a height. This could result in machine damage or, in severe cases, threaten the safety of the workers. The baffle 214 is used to fix the anchor bolting machine 4 and prevent it from slipping when the angle increases. It is also connected to the external power supply of the anchor bolting machine 4.

[0044] When the angle is changed to the required angle, the anchor bolt machine 4 starts to make the anchor bolt 5 enter the hole. During the process of entering the hole, the pressure sensor 14 measures the pressure bearing capacity of the hole. If the anchor bolt 11 reaches the end of the hole, the pressure sensor 14 will issue a warning. That is, the pressure sensor 14 touches the end of the inner wall of the hole, indicating that it cannot be extended into the hole. At this time, the anchor bolt machine 4 stops rotating to reduce the possibility of tunnel collapse during construction.

[0045] Because the deformation of the surrounding rock structure in different roadways varies or the geological conditions of the roadways themselves differ, the required length of anchor bolt 5 varies for different roadways. In such cases, anchor bolt 5 often needs to be custom-made according to the drilling depth in the roadway. To save time and costs, an anchor bolt telescopic structure is used, as detailed below:

[0046] When anchor rod 5 reaches the hole, distance sensor 12 measures whether anchor rod 11 has entered the end of the hole. If not, electric telescopic rod 13 retracts. At this time, sliding rod 104 is not restricted. Since anchor rod 5 enters the hole by rotating counterclockwise, cylinder 100 rotates counterclockwise, and sliding rod 104 moves in arc groove 103. Cylinder 100 moves towards anchor rod 11, causing anchor rod 11 to extend forward. The length of cylinder 102 is greater than the sum of the length of cylinder 101 after extension and the length of cylinder 100. The position of cylinder 102 on anchor rod 5 remains unchanged. This avoids the need to customize the length of anchor rod 5 due to excessive hole depth, which would waste manpower, labor, and financial resources.

[0047] Once the length of anchor rod 5 is adapted to the hole depth, the electric telescopic rod 94 retracts, pulling connecting rod 93 towards connecting rod 92. As a result, the diameter at the connection point between the two becomes larger. Because anchor rod 5 is inserted at an inclined angle, and the anchor bolting machine 4 vibrates during operation, this effectively fixes anchor rod 5, preventing it from falling out of the hole due to vibration and thus avoiding potential damage to manpower, labor, and financial resources. It also increases the stability of anchor rod 5 in the hole.

[0048] During the process of anchor bolt 5 entering and fixing in the hole, water enters anchor bolt 5 through anchor bolt machine 4, which removes the impurities left by previous drilling inside anchor bolt machine 4, and avoids clogging when injecting anchoring agent, thus affecting the use effect of the device.

[0049] After water has been flowing for a period of time, the water flow is stopped, and the mixed anchoring agent is poured into the anchor bolt machine 4. The anchoring agent then enters the anchor bolt 1 5 and anchor bolt 2 11 through the anchor bolt machine 4. Since the material of the cylinder 2 101 and cylinder 3 102 in the extension device 10 is not concrete, it affects the anti-collapse effect of the anchor bolt 5 on the roadway. That is, the outer side of cylinder 1 100 and cylinder 2 101 are provided with round holes 105, and the anchoring agent flows in from the round holes 105, thereby increasing the hardness of the shell of cylinder 2 101 and cylinder 3 102, thereby strengthening the anti-collapse effect of anchor bolt 1 5 and anchor bolt 2 11 on the roadway.

[0050] Once the anchoring agent has hardened, the anchor bolting machine 4 rotates to position the anchor plate 7 outside the hole. It works in conjunction with the bolt 6 to provide pre-tightening force, thus fixing the anchor bolt 5 and preventing it from falling off due to vibration, which would waste manpower, labor, and financial resources. Finally, the drill rod inside the anchor bolting machine 4 is pushed to feed the valve rod, which pushes out the anchor bolt 5. Then, the motor 210 rotates, driving the angle changing device 2 back to its initial state, and the anchor bolt 5 is fixed in the tunnel.

[0051] The embodiments of the present invention are given for the purposes of illustration and description. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A roadway support anchor assembly, comprising: The base (1) is characterized in that: an angle changing device (2) is provided on the upper end surface of the base (1), a panel (3) is provided on the upper end surface of the angle changing device (2), an anchor bolt machine (4) is detachably connected to the upper end surface of the panel (3), an anchor bolt machine (5) is detachably connected to one end of the anchor bolt machine (4), an extension device (10) is connected to the other end of the anchor bolt machine (5), and a nut (6), an anchor plate (7), a sealing grout (8) and an extension device (9) are respectively sleeved on the anchor bolt machine (5) from the tail to the extension device (10), and an anchor bolt (2) (11) is connected to the other end of the extension device (10). The extension device (10) includes a first cylinder (100), a second cylinder (101), and a third cylinder (102); the first cylinder (100) is connected to the first anchor rod (5), the first cylinder (100) has an arc-shaped groove (103), the second cylinder (101) is sleeved on the first cylinder (100), and a sliding rod (104) is provided on one side of the second cylinder (101), the bottom of the sliding rod (104) The cylinder three (102) is slidably connected to the inside of the arc groove (103) and is sleeved on the cylinder two (101); since the anchor rod one enters the hole by rotation, the cylinder one rotates counterclockwise and the sliding rod moves in the arc groove, so the cylinder one moves in the direction of the anchor rod two, so the anchor rod two extends forward as a whole, and the length of the cylinder three is greater than the sum of the length of the cylinder two after extension and the length of the cylinder one, and the position of the cylinder three on the anchor rod one remains unchanged; The extension device (9) includes a first fixed ring (90) and a second fixed ring (91). A first connecting rod (92) is connected to one side of the first fixed ring (90). A second connecting rod (93) is rotatably connected to one end of the first connecting rod (92) away from the first fixed ring (90). The second connecting rod (93) is connected to the second fixed ring (91). An electric telescopic rod (94) is provided on one side of the first fixed ring (90). The other end of the electric telescopic rod (94) is rotatably connected to one side of the second connecting rod (93).

2. The roadway support anchor assembly as described in claim 1, characterized in that: The angle transformation device (2) includes a fixed block (20), a connecting column (21), a connecting rod (22), and a connecting rod (23). The bottom of the fixed block (20) is connected to the upper surface of the base (1). A baffle (214) is connected to the upper surface of the fixed block (20). The connecting column (21) passes through the fixed blocks (20) on both sides. The connecting rod (22) is rotatably connected to the connecting column (21). The connecting rod (22) is rotatably connected to the connecting rod (23). The connecting rod (23) is rotatably connected to the inner side of the fixed block (20).

3. The roadway support anchor assembly as described in claim 2, characterized in that: The angle transformation device (2) further includes a mounting component (24), a worm gear (25), a worm (26), a first gear (27), a second gear (28), a second fixing block (29), and a motor (210); the mounting component (24) is sleeved on the first connecting column (21), the worm gear (25) is located between the two mounting components (24) and sleeved on the first connecting column (21), the worm (26) is meshed with the worm gear (25), the worm (26) is rotatably connected to the first gear (27) through the second fixing block (29), the first gear (27) is located on the lower surface of the second fixing block (29) away from the worm (26), the second gear (28) is located on the same side as the first gear (27), the second gear (28) is connected to the second fixing block (29), and the motor (210) is fixedly connected to the second gear (28).

4. The roadway support anchor assembly as described in claim 1, characterized in that: The connecting rod one (92), connecting rod two (93), and electric telescopic rod one (94) are all arranged in an array with anchor rod one (5) as the center.

5. The roadway support anchor assembly as described in claim 1, characterized in that: Both cylinder one (100) and cylinder two (101) have circular holes (105) around their four sides. The diameter of cylinder three (102) is the same as the diameter of the end of anchor rod one (5).

6. The roadway support anchor assembly as described in claim 1, characterized in that: The anchor rod 2 (11) is equipped with a pressure sensor (14) and a distance sensor (12) at its ends.

7. The roadway support anchor assembly as described in claim 1, characterized in that: The outer side of the second cylinder (101) is connected to the second electric telescopic rod (13), and the other end of the second electric telescopic rod (13) is fixed to the inner side of the third cylinder (102).

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