High-precision horizontal hole drilling rig

Abstract

This invention discloses a high-precision horizontal drilling rig for cement silo maintenance, comprising a mounting plate, a bracket elastically slidably connected to the mounting plate, a first sliding plate fixedly connected to the bottom end of the bracket, a first sliding block slidably mounted on the first sliding plate, a sliding sleeve fixedly connected to the first sliding block, a sliding rod slidably connected inside the sliding sleeve, and a return spring fixedly connected inside the sliding sleeve, with the end of the return spring away from the sliding sleeve fixedly connected to the sliding rod; a positioning wheel rotatably mounted on the end of the sliding rod away from the sliding sleeve; a driving mechanism for moving the first sliding block provided on the first sliding plate; a limiting mechanism for restricting the sliding direction of the sliding rod provided on the sliding sleeve; and a drilling mechanism provided at the bottom end of the first sliding block. This invention can greatly improve the maintenance efficiency of cement silos.

Description

Technical Field

[0001] This invention relates to the field of cement silo maintenance technology, specifically a high-precision drilling rig for high-altitude horizontal holes. Background Technology

[0002] A cement silo is a cylindrical structure used for storing cement, typically made of reinforced concrete.

[0003] Cement silos are prone to cracking after long-term use and exposure to wind and rain. In this case, external prestressing tendons are needed for reinforcement. Since the concrete at the intersection of two silos is thicker, holes need to be drilled at the intersection so that the prestressing tendons can be wrapped around each silo.

[0004] Currently, when drilling into cement silos, large cranes are typically used to lift the drilling machine to the location where the hole needs to be drilled. Because cement silos are quite tall, the crane needs to extend a long distance, which increases the risk. Since the drilling location is at the intersection of two silos, if the position of the drilling machine deviates when the crane is lifting it, it is easy to drill through the cement silo, which will greatly increase the workload of repairing the cement silo.

[0005] Based on this, the present invention designs a high-precision drilling rig for high-altitude horizontal holes to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a high-precision drilling rig for high-altitude horizontal holes to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-precision horizontal hole drilling rig, comprising a mounting plate, a bracket elastically slidably connected to the mounting plate, a first sliding plate fixedly connected to the bottom end of the bracket, a first sliding block slidably mounted on the first sliding plate, a sliding sleeve fixedly connected to the first sliding block, a sliding rod slidably connected inside the sliding sleeve, a return spring fixedly connected inside the sliding sleeve, and a fixed connection between the end of the return spring away from the sliding sleeve and the sliding rod; a positioning wheel rotatably mounted on the end of the sliding rod away from the sliding sleeve; a driving mechanism for driving the first sliding block to move is provided on the first sliding plate; a limiting mechanism for limiting the sliding direction of the sliding rod is provided on the sliding sleeve; and a drilling mechanism is provided at the bottom end of the first sliding block.

[0008] As a further embodiment of the present invention, the driving mechanism includes a threaded rod, which is rotatably connected to the first slide plate and threadedly connected to the first slide block; the threaded rod is driven by a first motor, which is fixedly mounted on the first slide plate.

[0009] As a further embodiment of the present invention, the limiting mechanism includes a fixing block, which is fixedly connected to a slide rod. A rack rod is slidably connected to the fixing block in the vertical direction. A gear capable of meshing with the rack rod is provided on its side. A one-way bearing is fixedly installed at the center of the gear and is rotatably connected to a sliding sleeve. A wedge block for driving the rack rod to move upward is provided on its side, and the wedge block is fixedly connected to a first sliding plate.

[0010] As a further embodiment of the present invention, the drilling mechanism includes a linear motor and a drill bit; the linear motor is fixedly installed at the bottom end of the first slide block, and the drill bit is installed on the linear motor.

[0011] As a further embodiment of the present invention, the mounting plate is slidably connected to a second sliding plate in the vertical direction, and a first cylinder for driving the second sliding plate to move is fixedly connected to the mounting plate; a first slider is slidably connected to the second sliding plate, and a second cylinder for driving the first slider to move is fixedly connected to the second sliding plate; a first roller is rotatably connected to the first slider, and a second motor for driving the first roller to rotate is fixedly connected to the top of the first slider; the mounting plate is also slidably connected to a third sliding plate in the vertical direction, and the second and third sliding plates are respectively located on the left and right sides of the top of the mounting plate; a third cylinder is fixedly connected to the bottom of the third sliding plate, and a second slide block is fixedly connected to the third cylinder, the second slide block being slidably connected to the mounting plate; a fourth cylinder for driving the movement of the second slide block is fixedly connected to the side wall of the second slide block; the fourth cylinder is fixedly connected to the mounting plate; and a second roller is rotatably connected to the third sliding plate.

[0012] As a further embodiment of the present invention, a lifting bracket is fixedly connected to the front side of the mounting plate.

[0013] As a further embodiment of the present invention, the bracket is configured as a telescopic structure.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. This invention, through the setting of positioning wheels and limiting mechanisms, allows the positioning wheels to move in close contact with the outer wall of the cement silo until they move to a position tangent to both silos. At this point, the center of the positioning wheel and the center of the intersection of the two silos are located in the same vertical plane. Then, by simply setting the center of the drilling mechanism directly below the center of the positioning wheel, it can be ensured that the drilling mechanism will not deviate during drilling, thus avoiding drilling through the silo and greatly improving the efficiency of cement silo maintenance.

[0016] 2. This invention enables the drilling rig to move automatically along the cement silo without the need for a crane to adjust its position, which can greatly improve the efficiency of cement silo repair. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the overall structure of the present invention;

[0019] Figure 3 This is a schematic diagram of the limiting mechanism structure of the present invention;

[0020] Figure 4 This is a schematic diagram of the third slide plate, third cylinder, second slide block and second roller structure of the present invention;

[0021] Figure 5 This is a schematic diagram of the working state of the present invention.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] Mounting plate 1, bracket 2, first sliding plate 3, first sliding block 4, sliding sleeve 5, sliding rod 6, return spring 7, positioning wheel 8, threaded rod 9, first motor 10, fixing block 11, rack and pinion 12, gear 13, one-way bearing 14, wedge block 15, linear motor 16, drill bit 17, second sliding plate 18, first cylinder 19, first slider 20, second cylinder 21, first roller 22, third sliding plate 23, third cylinder 24, second sliding block 25, second roller 26, lifting frame 27, second motor 28. Detailed Implementation

[0024] Please see Figure 1-5 This invention provides a technical solution: a high-precision horizontal hole drilling rig, comprising a mounting plate 1, a bracket 2 elastically slidably connected to the mounting plate 1, a first sliding plate 3 fixedly connected to the bottom end of the bracket 2, a first sliding block 4 slidably mounted on the first sliding plate 3, a sliding sleeve 5 fixedly connected to the first sliding block 4, a sliding rod 6 slidably connected inside the sliding sleeve 5, a return spring 7 fixedly connected inside the sliding sleeve 5, and the end of the return spring 7 away from the sliding sleeve 5 fixedly connected to the sliding rod 6; a positioning wheel 8 rotatably mounted on the end of the sliding rod 6 away from the sliding sleeve 5; a driving mechanism for driving the first sliding block 4 to move is provided on the first sliding plate 3; a limiting mechanism for limiting the sliding direction of the sliding rod 6 is provided on the sliding sleeve 5; and a drilling mechanism is provided at the bottom end of the first sliding block 4.

[0025] The drive mechanism includes a threaded rod 9, which is rotatably connected to the first slide plate 3 and threadedly connected to the first slide block 4; the threaded rod 9 is driven by a first motor 10, which is fixedly mounted on the first slide plate 3.

[0026] The limiting mechanism includes a fixing block 11, which is fixedly connected to the slide rod 6. A rack rod 12 is slidably connected to the fixing block 11 in the vertical direction. A gear 13 that can mesh with the rack rod 12 is provided on its side. A one-way bearing 14 is fixedly installed at the center of the gear 13. The one-way bearing 14 is rotatably connected to the sliding sleeve 5. A wedge block 15 for driving the rack rod 12 to move upward is provided on its side. The wedge block 15 is fixedly connected to the first sliding plate 3.

[0027] When the above solution is put into practical use, the drilling machine of the present invention is first hoisted to the required drilling height by a crane. Then, the crane drives the mounting plate 1 to adhere to the outer walls of two adjacent cement silos. At this time, the mounting plate 1 is in contact with the outer walls of the cement silos, and the positioning wheel 8 is also in contact with the outer walls of the cement silos. Then, the first motor 10 is started to work. The first motor 10 drives the threaded rod 9 to rotate, and the threaded rod 9 drives the first sliding block 4 to move to the right. The first sliding block 4 drives the sliding sleeve 5, the sliding rod 6, and the positioning wheel 8 to move to the right synchronously. It should be noted that the return spring 7 is in a compressed state during the movement of the sliding rod 6 to the right. When the sliding rod 6 and the positioning wheel 8 move to the right, the positioning wheel 8 tends to move away from the silo wall. At this time, the elastic force of the return spring 7 will drive the sliding rod 6 to drive the positioning wheel 8 to continue to move closer to the silo wall. Under the action of the return spring 7, the positioning wheel 8 will continue to move to the right while adhering to the silo wall. Figure 5As shown, before the positioning wheel 8 moves to the intersection of the outer walls of the two storage chambers, the positioning wheel 8 will continue to move towards the side closer to the storage chamber wall; when the positioning wheel 8 moves to the point where it is tangent to both storage chambers simultaneously, the positioning wheel 8 moves to its furthest position; it should be noted that when the first sliding block 4 drives the sliding sleeve 5 and the sliding rod 6 to move a short distance to the right, the rack rod 12 disengages from the wedge block 15, and then the rack rod 12 moves downward under the action of gravity to the position where it meshes with the gear 13; when the sliding rod 6 drives the positioning wheel 8 to move towards the side closer to the storage chamber wall, the sliding rod 6 will drive the rack rod 12 to move synchronously through the fixing block 11, and the rack rod 12 will drive the gear 13 to rotate; the one-way bearing 14 is set so that the positioning wheel 8 stops moving after moving to the furthest point (i.e., the position where the positioning wheel 8 is tangent to both storage chambers), at which point the positioning wheel 8 stops moving. The wheel 8 is positioned in the middle of the two silos; then the drilling mechanism can begin drilling. Positioning the drilling mechanism directly below the positioning wheel 8 ensures the hole position won't shift during drilling, allowing for better implantation of the prestressing tendons. After drilling is complete, the first motor 10 is started, driving the threaded rod 9 to rotate again. Since the positioning wheel 8, sliding rod 6, sliding sleeve 5, and first sliding block 4 are fixed relative to the cement silo, the rotation of the threaded rod 9 will move the first sliding plate 3 and bracket 2 to the right until the rack rod 12 is driven upwards by the wedge block 15 and disengages from the gear 13. Then the crane lifts the mounting plate 1 away from the silo wall, and the bracket 2, under the action of the spring, will drive the first sliding plate 3 back to its original position. Figure 1 The drilling rig is then hoisted to the next drilling location by a crane, and the drilling process is repeated. The present invention uses a positioning wheel 8 and a limiting mechanism. The positioning wheel 8 can move in close contact with the outer wall of the cement silo until it is tangent to both silos. At this point, the center of the positioning wheel 8 and the center of the intersection of the two silos are in the same vertical plane. Then, by simply setting the center of the drilling mechanism directly below the center of the positioning wheel 8, it can be ensured that the drilling mechanism will not deviate during drilling, thus avoiding drilling through the silo and greatly improving the efficiency of cement silo maintenance.

[0028] As a further embodiment of the present invention, the drilling mechanism includes a linear motor 16 and a drill bit 17; the linear motor 16 is fixedly installed at the bottom end of the first slide block 4, and the drill bit 17 is installed on the linear motor 16.

[0029] When the above scheme is put into actual use, since the linear motor 17 is located directly below the first slide block 4, and the central axis of the drill bit 16 is in the same vertical plane as the central axis of the positioning wheel, when the positioning wheel 8 moves to a position tangent to both silos, the linear motor 16 drives the drill bit 17 to move horizontally towards the side closer to the cement silo to perform drilling work.

[0030] As a further embodiment of the present invention, the mounting plate 1 is slidably connected to a second sliding plate 18 in the vertical direction, and a first cylinder 19 for driving the second sliding plate 18 to move is fixedly connected to the mounting plate 1; a first slider 20 is slidably connected to the second sliding plate 18, and a second cylinder 21 for driving the first slider 20 to move is fixedly connected to the second sliding plate 18; a first roller 22 is rotatably connected to the first slider 20, and a second motor 28 for driving the first roller 22 to rotate is fixedly connected to the top of the first slider 20; the mounting plate 1 is also slidably connected to a third sliding plate 23 in the vertical direction, and the second sliding plate 18 and the third sliding plate 23 are respectively located on the left and right sides of the top of the mounting plate 1; a third cylinder 24 is fixedly connected to the bottom of the third sliding plate 23, and a second slide block 25 is fixedly connected to the third cylinder 24, and the second slide block 25 is slidably connected to the mounting plate 1; a fourth cylinder for driving its movement is fixedly connected to the side wall of the second slide block 25; the fourth cylinder is fixedly connected to the mounting plate 1; and a second roller 26 is rotatably connected to the third sliding plate 23.

[0031] When the above scheme was put into practical use, the large size of the cement silo was taken into consideration, and if... Figure 5 When drilling is required at the intersections of the six interconnected silos, the crane's movement range is large, making drilling difficult, inaccurate, and inefficient. First, the crane lifts the mounting plate 1 onto the cement silo, at which point the bottom surfaces of the second sliding plate 18 and the third sliding plate 23 are respectively aligned with the top surfaces of the two silos. At this time, the first roller 22 and the second roller 26 are located... Figure 5 The positions shown are respectively aligned with the inner walls of the two compartments, and the mounting plate 1 is aligned with the outer walls of the two compartments; when the positioning wheel 8 is located at... Figure 5After drilling the intersection of the two silos at the indicated position, the threaded rod 9 will drive the first slide plate 3 and the bracket 2 to the right, causing the wedge block 15 to drive the rack rod 12 upward to disengage from the gear. Then, the first cylinder 19 will drive the first slide plate 18, the first slider 20, and the first roller 22 to move upward synchronously until the first roller 22 moves upward above the cement silo. At this point, the limiting effect of the first roller 22 on the mounting plate 1 disappears. Then, the fourth cylinder will be activated, and the fourth cylinder will move the mounting base 1 and the second slide plate 18 closer to the third slide plate 23 by retracting. At this point, the first roller 22 will move above the second cement silo. Then, the second cylinder 21 will be activated, causing the second cylinder 21 to drive the first slider 20 and the first roller 22 to move backward, so that the first roller 22 moves to the inside of the cement silo. Then, the first cylinder 19 will drive the first roller 22 downward until the first slide plate 18 moves again to the position where it is in contact with the top surface of the cement silo. Then, the third cylinder 24 will drive... The third sliding plate 23 and the second roller 26 move upwards until the second roller 26 moves above the cement silo. Then, the fourth cylinder extends to move the third sliding plate 23 to the right until the second roller 26 moves above the third cement silo. Then, the third cylinder 24 drives the third sliding plate 23 to move the second roller 26 downwards. At this time, the first roller 22 and the second roller 26 are in contact with the second and third cement silos, respectively, and drilling can begin. When drilling is required at the intersection of the two silos on the right, after the first roller 22 moves into the third cement silo, the second motor 28 drives the mounting plate 1 to rotate 90° until the mounting plate 1 is in contact with the outer wall of the two cement silos on the right. At this time, the drilling machine of the present invention moves to the right side of the cement silo. Then, drilling can be performed at the intersection of the two cement silos on the right. The present invention allows the drilling machine to move automatically along the cement silo without the need for a crane to adjust the position of the drilling machine, which can greatly improve the efficiency of cement silo repair.

[0032] As a further embodiment of the present invention, a lifting bracket 27 is fixedly connected to the front side of the mounting plate 1.

[0033] In actual use, the above solution, through the setting of the lifting frame 27, makes it easier for the crane to lift the mounting plate 1 to the working position.

[0034] As a further embodiment of the present invention, the bracket 2 is configured as a telescopic structure.

[0035] When the above solution is put into practical use, by setting the bracket 2 as a telescopic structure, a linear drive mechanism (such as a cylinder, electric telescopic rod, etc.) can be added inside the bracket 2, so that the drill bit can move in the vertical direction, which can be used for drilling work in different positions.

[0036] Working principle: First, the drilling machine of this invention is hoisted to the required drilling height using a crane. Then, the crane drives the mounting plate 1 to adhere to the outer walls of two adjacent cement silos. At this time, the mounting plate 1 is in contact with the outer walls of the cement silos, and the positioning wheel 8 is also in contact with the outer walls of the cement silos. Then, the first motor 10 is started to work. The first motor 10 drives the threaded rod 9 to rotate, and the threaded rod 9 drives the first sliding block 4 to move to the right. The first sliding block 4 drives the sliding sleeve 5, the sliding rod 6, and the positioning wheel 8 to move to the right synchronously. It should be noted that during the movement of the sliding rod 6 to the right, the return spring 7 is in a compressed state. When the sliding rod 6 and the positioning wheel 8 move to the right, the positioning wheel 8 tends to move away from the silo wall. At this time, the elastic force of the return spring 7 will drive the sliding rod 6 to drive the positioning wheel 8 to continue to move closer to the silo wall. Under the action of the return spring 7, the positioning wheel 8 will continue to move to the right while adhering to the silo wall. Figure 5 As shown, before the positioning wheel 8 moves to the intersection of the outer walls of the two storage chambers, the positioning wheel 8 will continue to move towards the side closer to the storage chamber wall; when the positioning wheel 8 moves to the point where it is tangent to both storage chambers simultaneously, the positioning wheel 8 moves to its furthest position; it should be noted that when the first sliding block 4 drives the sliding sleeve 5 and the sliding rod 6 to move a short distance to the right, the rack rod 12 disengages from the wedge block 15, and then the rack rod 12 moves downward under the action of gravity to the position where it meshes with the gear 13; when the sliding rod 6 drives the positioning wheel 8 to move towards the side closer to the storage chamber wall, the sliding rod 6 will drive the rack rod 12 to move synchronously through the fixing block 11, and the rack rod 12 will drive the gear 13 to rotate; the one-way bearing 14 is set so that the positioning wheel 8 stops moving after moving to the furthest point (i.e., the position where the positioning wheel 8 is tangent to both storage chambers), at which point the positioning wheel 8 stops moving. The wheel 8 is positioned in the middle of the two silos; then the drilling mechanism can begin drilling. Positioning the drilling mechanism directly below the positioning wheel 8 ensures the hole position won't shift during drilling, allowing for better implantation of the prestressing tendons. After drilling is complete, the first motor 10 is started, driving the threaded rod 9 to rotate again. Since the positioning wheel 8, sliding rod 6, sliding sleeve 5, and first sliding block 4 are fixed relative to the cement silo, the rotation of the threaded rod 9 will move the first sliding plate 3 and bracket 2 to the right until the rack rod 12 is driven upwards by the wedge block 15 and disengages from the gear 13. Then the crane lifts the mounting plate 1 away from the silo wall, and the bracket 2, under the action of the spring, will drive the first sliding plate 3 back to its original position. Figure 1The drilling rig is then hoisted to the next drilling location by a crane, and the drilling process is repeated. The present invention uses a positioning wheel 8 and a limiting mechanism. The positioning wheel 8 can move in close contact with the outer wall of the cement silo until it is tangent to both silos. At this point, the center of the positioning wheel 8 and the center of the intersection of the two silos are in the same vertical plane. Then, by simply setting the center of the drilling mechanism directly below the center of the positioning wheel 8, it can be ensured that the drilling mechanism will not deviate during drilling, thus avoiding drilling through the silo and greatly improving the efficiency of cement silo maintenance.

Claims

1. High-altitude horizontal hole high-precision drilling machine, comprising a mounting plate (1), characterized in that: The mounting plate (1) is slidably connected with a support (2), the bottom end of the support (2) is fixedly connected with a first sliding plate (3), the first sliding plate (3) is slidably connected with a first sliding seat (4), the first sliding seat (4) is fixedly connected with a sliding sleeve (5), the sliding sleeve (5) is slidably connected with a sliding rod (6), the sliding sleeve (5) is fixedly connected with a reset spring (7), the end of the reset spring (7) away from the sliding sleeve (5) is fixedly connected with the sliding rod (6); the end of the sliding rod (6) away from the sliding sleeve (5) is rotatably connected with a positioning wheel (8); the first sliding plate (3) is provided with a driving mechanism for driving the first sliding seat (4) to move; the sliding sleeve (5) is provided with a limiting mechanism for limiting the sliding direction of the sliding rod (6); the bottom end of the first sliding seat (4) is provided with a drilling mechanism. The limiting mechanism comprises a fixed block (11), the fixed block (11) is fixedly connected with the sliding rod (6), the fixed block (11) is slidably connected with a rack rod (12) in the vertical direction, the side of the rack rod (12) is provided with a gear (13) capable of engaging with the rack rod (12), the center of the gear (13) is fixedly connected with a one-way bearing (14), the one-way bearing (14) is rotatably connected with the sliding sleeve (5); the side of the rack rod (12) is provided with a wedge-shaped block (15) for driving it to move upward, the wedge-shaped block (15) is fixedly connected with the first sliding plate (3); The mounting plate (1) is slidably connected with a second sliding plate (18) in the vertical direction, the mounting plate (1) is fixedly connected with a first air cylinder (19) for driving the second sliding plate (18) to move; the second sliding plate (18) is slidably connected with a first sliding block (20), the second sliding plate (18) is fixedly connected with a second air cylinder (21) for driving the first sliding block (20) to move; the first sliding block (20) is rotatably connected with a first roller (22), the top of the first sliding block (20) is fixedly connected with a second motor (28) for driving the first roller (22) to rotate; the mounting plate (1) is also slidably connected with a third sliding plate (23) in the vertical direction, the second sliding plate (18) and the third sliding plate (23) are respectively located on the left and right sides of the top of the mounting plate (1); the bottom of the third sliding plate (23) is fixedly connected with a third air cylinder (24), the third air cylinder (24) is fixedly connected with a second sliding seat (25), the second sliding seat (25) is slidably connected with the mounting plate (1); the side wall of the second sliding seat (25) is fixedly connected with a fourth air cylinder for driving it to move; the fourth air cylinder is fixedly connected with the mounting plate (1); the third sliding plate (23) is rotatably connected with a second roller (26).

2. The high-altitude horizontal-hole high-precision drilling machine according to claim 1, characterized in that: The driving mechanism comprises a threaded rod (9), the threaded rod (9) is rotatably connected with the first sliding plate (3), the threaded rod (9) is threadedly connected with the first sliding seat (4); the threaded rod (9) is drivingly connected with a first motor (10), the first motor (10) is fixedly mounted on the first sliding plate (3).

3. The high-altitude horizontal-hole high-precision drilling machine according to claim 1, characterized in that: The drilling mechanism comprises a linear motor (16) and a drill bit (17); the linear motor (16) is fixedly installed at the bottom end of the first sliding seat (4), and the drill bit (17) is installed on the linear motor (16).

4. The high-altitude horizontal-hole high-precision drilling machine of claim 1, wherein: The front side of the mounting plate (1) is fixedly connected with a lifting frame (27).

5. The high-altitude horizontal-hole high-precision drilling machine of claim 1, wherein: The bracket (2) is provided in a telescopic structure.

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