Large rescue drilling machine hollow drill rod deviation prevention device

Abstract

The application discloses a large-scale rescue drilling machine hollow drill rod anti-deviation device, which comprises, from top to bottom, a limiting ball seat, a supporting seat, a transverse moving support, an upper platform, a supporting adjusting rod and a lower base. The upper platform is connected with the lower base through a plurality of supporting adjusting rods. The transverse moving support is slidably connected to the upper platform along the length direction of the upper platform. A transverse moving support rotating handle is installed on the upper platform to drive the transverse moving support to slide on the upper platform. Two supporting seats are installed on the transverse moving support and are connected to the two ends of the transverse moving support in an eight-character shape. The two supporting seats are both connected with the limiting ball seat. The upper ends of the two limiting ball seats are provided with two rolling balls which are respectively supported on the two sides of the lower end of the hollow drill rod of the drilling machine. The application can satisfy the fine adjustment of various positions after the anti-deviation device is positioned, effectively provide stable support for the hollow drill rod of the drilling machine, avoid the droop of the hollow drill rod, and improve the stability of the drill rod and the drilling precision of the drill bit.

Description

Technical Field

[0001] This invention belongs to the field of underground rescue directional tunneling technology, specifically relating to a device for preventing deviation of hollow drill rods in large rescue drilling rigs. Background Technology

[0002] With the continuous development and progress of economy and technology, many advanced equipment have emerged in the field of disaster relief. However, some new problems may arise during the use of these devices. These problems require operators and users to optimize and improve them according to the specific conditions of the rescue site, so as to make the products more perfect.

[0003] Large rescue drilling rigs are directional excavation rescue devices used in disasters such as landslides and building collapses. The rescue operation primarily involves using a hollow drill rod to excavate forward until reaching the trapped individuals. A national rescue team currently possesses a large hollow drill rod rescue rig. The drill rod has an outer diameter of 750mm and an inner diameter of 680mm, with thick walls and considerable weight. During rescue operations, due to uneven ground, the rescue drilling rig generally cannot approach the landslide area at close range. Therefore, the drill rod needs to extend forward a considerable distance, sometimes even tens of meters, to reach the landslide slope. Furthermore, the drill rod can deviate during excavation, causing sagging and shifting, which affects drilling accuracy.

[0004] To avoid the above situation, a device needs to be designed to solve the problems of the existing technology. Summary of the Invention

[0005] The purpose of this invention is to provide a device for preventing the hollow drill rod of a large rescue drilling rig from deviating, so as to solve the above-mentioned problems existing in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A device for preventing deviation of hollow drill rods in large rescue drilling rigs includes, from top to bottom, a limiting ball seat, a support seat, a transverse support, an upper platform, a support adjustment rod, and a lower base. The upper platform is connected to the lower base via multiple support adjustment rods. The transverse support is slidably connected to the upper platform along its length. A transverse support rotation handwheel is installed on the upper platform to drive the transverse support to slide on the platform. Two support seats are installed on the transverse support, and the two support seats are connected to the two ends of the transverse support in a figure-eight shape. Each support seat is connected to a limiting ball seat, and the upper end of the two limiting ball seats is provided with rolling balls that support the lower ends of the hollow drill rods of the drilling rig.

[0007] As a preferred technical solution of the present invention, the limiting ball seat includes the rolling ball and an annular sealing plate, an annular limiting plate and a ball seat connected sequentially from top to bottom by a first connecting bolt. The lower end of the ball seat is connected to the support seat. The upper end of the ball seat is provided with a ball groove. The lower part of the rolling ball is matched and disposed in the ball groove. Lubricating sealing grease is provided between the rolling ball and the ball groove. The annular limiting plate is matched and sleeved on the middle part of the rolling ball, and the annular sealing plate is matched and sleeved on the upper part of the rolling ball.

[0008] As a preferred technical solution of the present invention, a bracket is installed at one end of the upper platform, and a transverse sliding screw is rotatably connected to the bracket. The middle part of the transverse sliding screw is threadedly connected to the transverse sliding support, and the end of the transverse sliding screw away from the transverse sliding support is connected to the rotating handwheel of the transverse sliding support. The transverse sliding support is slidably connected to the upper end of the upper platform.

[0009] As a preferred technical solution of the present invention, the transverse support includes a lower support and an upper mounting plate disposed on the upper end of the lower support, with two support seats respectively connected to the two ends of the upper mounting plate; the middle part of the upper mounting plate is rotatably connected to the lower support through a rotating shaft; the lower support is threadedly connected to the middle part of the transverse lead screw.

[0010] As a preferred technical solution of the present invention, an arc-shaped elongated hole is provided on the upper mounting plate between the rotating shaft and the two support seats. The two arc-shaped elongated holes are located on the same circumference with the rotating shaft as the center. A limiting bolt connected to the lower support is slidably fitted in the two arc-shaped elongated holes. The nut end of the limiting bolt presses the upper mounting plate tightly against the lower support.

[0011] As a preferred technical solution of the present invention, the lower end of the transverse support is provided with a limiting frame that fits against the upper end of the upper platform, and a clamping plate is installed on the upper platform on both sides of the transverse support. The upper end of the transverse support is fitted or gap-fitted with the clamping plate.

[0012] As a preferred technical solution of the present invention, the upper platform is provided with a plurality of vertical mounting tubes, and the upper end of each support adjustment rod is inserted into a vertical mounting tube; a notch is opened on the vertical mounting tube, which runs vertically through the lower end of the vertical mounting tube, and connecting plates are fixed on the outer walls of the vertical mounting tube on both sides of the notch. The two connecting plates are parallel to each other and connected by fastening bolts; a reinforcing rib plate is connected between the two connecting plates and the outer wall of the vertical mounting tube.

[0013] As a preferred technical solution of the present invention, the support adjustment rod is a telescopic rod structure.

[0014] As a preferred technical solution of the present invention, the support adjustment rod includes an upper lead screw, a middle sleeve and a lower lead screw connected to the lower base from top to bottom. The lower part of the upper lead screw is threaded to the upper end of the middle sleeve, and the upper part of the lower lead screw is threaded to the lower end of the middle sleeve. The threads at both ends of the middle sleeve are in opposite directions.

[0015] As a preferred technical solution of the present invention, both the upper lead screw and the lower lead screw are provided with a support boss located outside the middle sleeve.

[0016] Beneficial effects: In use, the two limiting ball seats are located on both sides of the hollow drill rod of the drilling rig. The rolling ball at the upper end of the limiting ball seat abuts against the hollow drill rod of the drilling rig. Because the rolling ball is movably installed on the upper end of the limiting ball seat, it can roll relative to the hollow drill rod of the drilling rig, reducing friction between them and ensuring the flexibility of the hollow drill rod when moving. The support adjustment rod can also adjust the height of the two limiting ball seats, thereby achieving vertical adjustment. Combined with adjusting the position of the transverse support by rotating the handwheel, the lateral position of the two limiting ball seats can be adjusted, satisfying various position fine adjustments after the anti-deviation device is in place. This effectively provides stable support for the hollow drill rod of the drilling rig, preventing the hollow drill rod from sagging and improving the stability of the drill rod and the drilling accuracy of the drill bit. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the limiting ball seat in this invention; Figure 3 This is a schematic diagram of the vertical mounting pipe in this invention; Figure 4 This is a cross-sectional view of the support adjustment rod in this invention; Figure 5 This is a schematic diagram of the present invention in conjunction with the hollow drill rod of a large rescue drilling rig.

[0018] In the diagram: 1-Limiting ball seat; 101-Rolling ball; 102-Annular sealing plate; 103-Annular limiting plate; 104-Ball seat; 105-First connecting bolt; 2-Support seat; 3-Horizontal movement support; 301-Upper mounting plate; 302-Lower support; 303-Rotating shaft; 304-Limiting bolt; 4-Upper platform; 401-Horizontal movement support rotating handwheel; 402-Bracket; 403-Horizontal movement screw; 404-Clamping plate; 405-Vertical mounting tube; 406-Connecting plate; 407-Reinforcing rib plate; 5-Support adjusting rod; 501-Upper screw; 502-Middle sleeve; 503-Lower screw; 6-Lower base; 7-Drilling rig hollow drill rod. Detailed Implementation

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is for the purpose of helping to understand the present invention, but does not constitute a limitation of the present invention.

[0020] Example: like Figure 1-5 As shown, this embodiment provides a device for preventing the hollow drill rod of a large rescue drilling rig from deviating. It includes a limiting ball seat 1, a support seat 2, a transverse support 3, an upper platform 4, a support adjustment rod 5, and a lower base 6 arranged sequentially from top to bottom. The upper platform 4 is connected to the lower base 6 through multiple support adjustment rods 5 to ensure the stability of the upper platform 4. At the same time, the height of the upper platform 4 can be adjusted through the support adjustment rods 5 to adapt to the height of the hollow drill rod 7 of the drilling rig, so that this device for preventing the hollow drill rod of a large rescue drilling rig from deviating can provide stable support for the hollow drill rod 7 of the drilling rig.

[0021] The transverse support 3 is slidably connected to the upper platform 4 along its length. A transverse support rotation handwheel 401 is installed on the upper platform 4 to drive the transverse support 3 to slide on it. When there is a slight deviation in the installation position of the anti-deviation device for the hollow drill rod of this large rescue drilling rig, the position of the transverse support 3 can be adjusted by the transverse support rotation handwheel 401, thereby ensuring that the structure above the transverse support 3 is precisely located directly below the hollow drill rod 7 of the drilling rig, thus providing stable support for the hollow drill rod 7. Two... Support 2, two support 2 are connected to the two ends of transverse support 3 in a figure-eight shape. Each support 2 is connected to a limiting ball seat 1. The upper end of the two limiting ball seats 1 is provided with rolling balls 101 that support the lower ends of the hollow drill rod 7 of the drilling rig. In practice, the two limiting ball seats 1 are located on both sides of the hollow drill rod 7 of the drilling rig. The rolling balls 101 at the upper end of the limiting ball seats 1 abut against the hollow drill rod 7 of the drilling rig. Because the rolling balls 101 are movably installed on the upper end of the limiting ball seats 1, they can roll relative to the hollow drill rod 7 of the drilling rig, reducing friction between them.

[0022] In use, the two limiting ball seats 1 are located on both sides of the hollow drill rod 7 of the drilling rig. The rolling ball 101 at the upper end of the limiting ball seat 1 abuts against the hollow drill rod 7 of the drilling rig. Since the rolling ball 101 is movably installed on the upper end of the limiting ball seat 1, it can roll relative to the hollow drill rod 7 of the drilling rig, reducing friction between it and the hollow drill rod 7 of the drilling rig, ensuring the flexibility of the hollow drill rod 7 of the drilling rig when moving. The support adjustment rod 5 can also adjust the height of the two limiting ball seats 1, thereby realizing up and down adjustment. Combined with adjusting the position of the transverse support 3 by rotating the handwheel 401 of the transverse support, the lateral position adjustment of the two limiting ball seats 1 can be realized, which meets the various position fine adjustments after the anti-deviation device is in place, effectively providing stable support for the hollow drill rod 7 of the drilling rig, avoiding the hollow drill rod from sagging, and improving the stability of the drill rod and the drilling accuracy of the drill bit.

[0023] As a preferred embodiment of this example, it should be further explained that the limiting ball seat 1 includes the rolling ball 101 and an annular sealing plate 102, an annular limiting plate 103, and a ball seat 104 connected sequentially from top to bottom by the first connecting bolt 105. The connection is simple, ensuring structural stability and the binding effect on the rolling ball 101, preventing the rolling ball 101 from detaching from the limiting ball seat 1. Specifically, the lower end of the ball seat 104 is connected to the support seat 2, which can be a direct insertion of a thick tube and a thin tube, ensuring the stability of the limiting ball seat 1 and facilitating on-site assembly and disassembly. The upper end of the ball seat 104 has a ball groove, the depth of which is less than that of the rolling ball 101. The lower part of the ball 101 is matched and set in the ball groove, and a lubricating sealing grease is provided between the ball 101 and the ball groove to improve the flexibility of the ball 101 when rolling. The annular limiting plate 103 is matched and sleeved in the middle of the ball 101, that is, the position where the cross-section of the ball 101 is the largest. The annular limiting plate 103 and the ball seat 104 cooperate to form a new ball groove. The depth of this new ball groove is greater than the radius of the ball 101. The annular sealing rubber plate 102 is matched and sleeved in the upper part of the ball 101. The annular sealing rubber plate 102 forms a closing opening to ensure the stability of the ball 101. While sealing the sealing grease, it also prevents external sand and gravel debris from entering the ball mating surface.

[0024] As a preferred embodiment of this invention, it should be further explained that a bracket 402 is installed at one end of the upper platform 4, and a transverse sliding screw 403 is rotatably connected to the bracket 402. The middle part of the transverse sliding screw 403 is threadedly connected to the transverse sliding support 3. The bracket 402 can raise the height of the transverse sliding screw 403, so that the transverse sliding screw 403 is connected to the middle part of the transverse sliding support 3, thereby ensuring the stability of the connection. The end of the transverse sliding screw 403 away from the transverse sliding support 3 is connected to the transverse sliding support rotating handwheel 401, so as to control the rotation of the transverse sliding screw 403 through the transverse sliding support rotating handwheel 401, and then control the transverse sliding support 3 to move laterally through the rotation of the transverse sliding screw 403. The transverse sliding support 3 is slidably connected to the upper end of the upper platform 4, restricting the movement mode of the transverse sliding support 3 and ensuring the stability of the transverse sliding support 3.

[0025] As a preferred embodiment of this invention, it should be further explained that the transverse support 3 includes a lower support 302 and an upper mounting plate 301 disposed on the upper end of the lower support 302. Two support seats 2 are respectively connected to the two ends of the upper mounting plate 301. The middle part of the upper mounting plate 301 is rotatably connected to the lower support 302 through a rotating shaft 303, thereby allowing the upper mounting plate 301 to be rotated and adjusted, which in turn allows for the rotational adjustment of the two limiting ball seats 1. When there is an angular deviation between the anti-deviation device of the hollow drill rod of this large rescue drilling rig and the hollow drill rod 7 of the drilling rig, the angle can be finely adjusted to achieve a fit, making it more practical. The lower support 302 is threadedly connected to the middle part of the transverse lead screw 403. When adjusting the transverse support 3 laterally, the transverse position of the entire transverse support 3 is achieved by adjusting the position of the lower support 302.

[0026] As a preferred embodiment of this invention, it should be further explained that the upper mounting plate 301 between the rotating shaft 303 and the two support seats 2 is provided with an arc-shaped elongated hole. The two arc-shaped elongated holes are located on the same circumference with the rotating shaft 303 as the center. The two arc-shaped elongated holes are slidably fitted with limiting bolts 304 connected to the lower support 302. The nut end of the limiting bolt 304 presses the upper mounting plate 301 tightly onto the lower support 302. The cooperation between the screw part of the limiting bolt 304 and the arc-shaped elongated hole does not affect the rotation of the upper mounting plate 301. When the angle is adjusted to the correct position, tightening the limiting bolt 304 will press the upper mounting plate 301 tightly onto the lower support 302, thus ensuring the stability of the upper mounting plate 301 and, consequently, the stability of the two limiting ball seats 1.

[0027] As a preferred embodiment of this invention, it should be further explained that the lower end of the transverse support 3 is provided with a limiting frame that fits against the upper end of the upper platform 4. Clamping plates 404 are installed on both sides of the upper platform 4 of the transverse support 3. The upper end of the transverse support 3 is fitted or gap-fitted with the clamping plate 404, so that the upper and lower parts of the transverse support 3 are limited by the upper platform 4 and the clamping plate 404 respectively, so that the transverse support 3 can only slide laterally, ensuring the stability of the transverse support 3 when sliding.

[0028] As a preferred embodiment of this invention, it should be further explained that the upper platform 4 is provided with multiple vertical mounting pipes 405, and the upper end of each support adjustment rod 5 is inserted into a vertical mounting pipe 405. This ensures the stability of the upper platform 4 while achieving a detachable connection, facilitating on-site assembly and disassembly. A notch, approximately 3-4 mm wide, is provided on the vertical mounting pipe 405, penetrating its lower end and not penetrating its upper end. The vertical mounting pipes on both sides of the notch... Connecting plates 406 are fixed to the outer wall of the vertical mounting tube 405. The two connecting plates 406 are parallel to each other and connected by fastening bolts. The notch design makes it easier to insert the upper end of the support adjustment rod 5 into the lower end of the vertical mounting tube 405. Then, by tightening the fastening bolts, the lower end of the vertical mounting tube 405 can clamp the upper end of the support adjustment rod 5, further enhancing the stability of the upper platform 4. Reinforcing ribs 407 are connected between the two connecting plates 406 and the outer wall of the vertical mounting tube 405, which improves the structural strength of the vertical mounting tube 405.

[0029] As a preferred embodiment of this invention, it should be further noted that the support adjustment rod 5 is a telescopic rod structure, which can adjust the height of the two limiting ball seats 1.

[0030] As a preferred embodiment of this invention, it should be further explained that the support adjustment rod 5 includes an upper lead screw 501, a middle sleeve 502, and a lower lead screw 503 connected to the lower base 6 from top to bottom. The lower part of the upper lead screw 501 is threadedly connected to the upper end of the middle sleeve 502, and the upper part of the lower lead screw 503 is threadedly connected to the lower end of the middle sleeve 502. The threads at both ends of the middle sleeve 502 are in opposite directions. When adjusting the length of the support adjustment rod 5, the middle sleeve 502 can be rotated, thereby adjusting the relative distance between the upper lead screw 501 and the lower lead screw 503, realizing the length adjustment of the support adjustment rod 5, and thus realizing the height adjustment of the two limiting ball seats 1.

[0031] As a preferred embodiment of this invention, it should be further explained that both the upper lead screw 501 and the lower lead screw 503 are provided with a support boss located outside the middle sleeve 502. The middle sleeve 502 on the lower lead screw 503 can be stably supported on the lower base, while the support boss of the upper lead screw 501 can be supported on the middle sleeve 502, further improving the stability of the structure.

[0032] It should be noted that during the rescue, in order to save time, the rescuers first disassembled the anti-deviation device at the training site, transported it to the rescue front line, and then manually carried it to the rescue location for rapid assembly. Subsequently, the rescue drilling rig entered the site and carried out tunneling construction with the assistance of the anti-deviation device.

[0033] During construction, after the tunneling equipment arrives on site, the height of one drill rod is initially measured. Then, based on the ground conditions, the adjustment height of the anti-deviation device is determined. The total height of the anti-deviation device, as well as the lateral movement distance and angle of the limiting ball seats 1, are quickly adjusted according to the calculated height using the support adjustment rod 5. This ensures that the hollow drill rod of the drilling rig is precisely sandwiched between the two limiting ball seats 1 and rotates forward supported by the two iron balls. At this point, the arbitrary rolling characteristics of the iron balls provide rolling support and limiting for the drill rod.

[0034] After the rescue operation is completed, the device should be disassembled, cleaned, and neatly packaged for use in the next drill or rescue operation.

[0035] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A device for preventing deviation of hollow drill rods in large rescue drilling rigs, characterized in that, The system includes, from top to bottom, a limiting ball seat (1), a support seat (2), a transverse support (3), an upper platform (4), a support adjustment rod (5), and a lower base (6). The upper platform (4) is connected to the lower base (6) via multiple support adjustment rods (5). The transverse support (3) is slidably connected to the upper platform (4) along its length. A transverse support rotation handwheel (401) is installed on the upper platform (4) to drive the transverse support (3) to slide on the upper platform (4). Two support seats (2) are installed, and the two support seats (2) are connected to the two ends of the transverse support (3) in a figure-eight shape. Each of the two support seats (2) is connected to a limit ball seat (1). The upper end of the two limit ball seats (1) is provided with a ball (101) that supports the lower end of the hollow drill rod (7) of the drilling rig. A bracket (402) is installed at one end of the upper platform (4). A transverse screw (403) is rotatably connected to the bracket (402). The middle part of the transverse screw (403) is threaded to the transverse support (3). The end of the lead screw (403) away from the transverse support (3) is connected to the transverse support rotating handwheel (401); the transverse support (3) is slidably connected to the upper end of the upper platform (4); the transverse support (3) includes a lower support (302) and an upper mounting plate (301) disposed on the upper end of the lower support (302), and two support seats (2) are respectively connected to the two ends of the upper mounting plate (301); the middle part of the upper mounting plate (301) is rotatably connected to the lower support (302) through a rotating shaft (303); the... The lower support (302) is threadedly connected to the middle of the transverse lead screw (403); the upper mounting plate (301) between the rotating shaft (303) and the two support seats (2) is provided with arc-shaped elongated holes. The two arc-shaped elongated holes are located on the same circumference with the rotating shaft (303) as the center. The two arc-shaped elongated holes are slidably fitted with limit bolts (304) connected to the lower support (302). The nut end of the limit bolt (304) presses the upper mounting plate (301) tightly onto the lower support (302).

2. The anti-deviation device for hollow drill rods of large rescue drilling rigs according to claim 1, characterized in that, The limiting ball seat (1) includes the ball (101) and an annular sealing rubber plate (102), an annular limiting plate (103) and a ball seat (104) connected sequentially from top to bottom by a first connecting bolt (105). The lower end of the ball seat (104) is connected to the support seat (2). The upper end of the ball seat (104) is provided with a ball groove. The lower part of the ball (101) is matched and set in the ball groove. A sealing grease for lubrication is provided between the ball (101) and the ball groove. The annular limiting plate (103) is matched and sleeved on the middle part of the ball (101), and the annular sealing rubber plate (102) is matched and sleeved on the upper part of the ball (101).

3. A device for preventing deviation of hollow drill rods in large rescue drilling rigs according to claim 1 or 2, characterized in that, The lower end of the transverse support (3) is provided with a limiting frame that fits against the upper end of the upper platform (4). Both sides of the upper platform (4) of the transverse support (3) are equipped with a clamping plate (404). The upper end of the transverse support (3) is fitted with or gap-fitted to the clamping plate (404).

4. The anti-deviation device for hollow drill rods of large rescue drilling rigs according to claim 1, characterized in that, The upper platform (4) is provided with multiple vertical mounting tubes (405), and the upper end of each support adjustment rod (5) is inserted into a vertical mounting tube (405); a notch is opened on the vertical mounting tube (405) and runs vertically through the lower end of the vertical mounting tube (405); a connecting plate (406) is fixed on the outer wall of the vertical mounting tube (405) on both sides of the notch; the two connecting plates (406) are parallel to each other and connected by fastening bolts; a reinforcing rib plate (407) is connected between the two connecting plates (406) and the outer wall of the vertical mounting tube (405).

5. The anti-deviation device for hollow drill rods of large rescue drilling rigs according to claim 1, characterized in that, The support adjustment rod (5) is a telescopic rod structure.

6. A device for preventing deviation of hollow drill rods in large rescue drilling rigs according to claim 1 or 5, characterized in that, The support adjustment rod (5) includes an upper lead screw (501), a middle sleeve (502), and a lower lead screw (503) connected to the lower base (6) from top to bottom. The lower part of the upper lead screw (501) is threaded to the upper end of the middle sleeve (502), and the upper part of the lower lead screw (503) is threaded to the lower end of the middle sleeve (502). The threads at both ends of the middle sleeve (502) are in opposite directions.

7. A device for preventing deviation of hollow drill rods in large rescue drilling rigs according to claim 6, characterized in that, Both the upper lead screw (501) and the lower lead screw (503) are provided with a support boss located outside the middle sleeve (502) in the middle part.

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