Drill rod swing control device of rotary drilling machine

Abstract

The invention discloses a drill rod swing control device of a rotary drilling machine, and relates to the technical field of rotary drilling machines, the drill rod swing control device has the advantage of reducing drill rod swing, and the drill rod swing control device of the rotary drilling machine is characterized by comprising a bottom plate and an inverted-U-shaped supporting frame hinged to the top end of the bottom plate through a hinge piece, and a guide wheel is arranged at the top end in the supporting frame; a winch is arranged on one side of the top end of the bottom plate, one end of a steel wire rope on the winch bypasses a guide wheel and is provided with a lifting hook, a rotating joint is arranged on the lifting hook in a hanging mode through a lifting ring, a drill rod is vertically installed on the rotating joint, a rotating disc is arranged on the bottom plate, and one end of a drill bit of the drill rod passes through the rotating disc. The supporting frame is provided with a first limiting piece used for limiting the rotary connector so that the rotary connector can not swing.

Description

Technical Field

[0001] The invention relates to the technical field of rotary drilling rigs, in particular to a rotary drilling rig drill rod swing control device. Background Art

[0002] Bored piles are often used in bridges, docks and other building structures due to their mature construction technology, high bearing capacity and wide application range. They are high quality and highly adaptable. As a foundation project, there are many methods for making holes in piles, mainly drilling, punching, rotary drilling, etc. Rotary drilling has attracted widespread attention due to its low on-site construction cost and high overall cost performance.

[0003] Existing rotary drilling rigs, such as Figure 8 , including a drill rod 9, a turntable 10, a support frame 2, a hook 6, and a swivel joint 8. The drill rod 9 of the gyratory drilling rig is connected to the hook 6 through the swivel joint 8, and the hook 6 is connected to the winch 4 through the wire rope 5. The rotation of the turntable 10 drives the drill rod 9 to rotate. Since the drill rod 9 is connected to the hook 6 through the swivel joint 8, there is only one fulcrum, the turntable 10, during the rotation of the drill rod 9, the top of the drill rod 9 will rotate and swing under the action of centrifugal force, and the rotation of the drill bit at the bottom of the drill rod 9 will also be accompanied by swinging, resulting in serious expansion of the bored pile hole and waste of concrete. Therefore, the applicant has developed a new technical solution in the actual production process to solve the above technical problems. Summary of the invention

[0004] In view of the above-mentioned technical deficiencies, an object of the present invention is to provide a drill rod swing control device for a rotary drilling rig, which has the advantage of reducing the swing of the drill rod.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: The present invention provides a drill rod swing control device for a rotary drilling rig, comprising a base plate and an inverted U-shaped support frame hinged to the top end of the base plate through a hinge, a guide wheel is arranged at the top end of the support frame, a winch is arranged on one side of the top end of the base plate, and one end of a steel wire rope on the winch is passed around the guide wheel and is provided with a hook, a rotary joint is suspended on the hook through a lifting ring, a drill rod is vertically installed on the rotary joint, a turntable is arranged on the base plate, one end of a drill bit of the drill rod passes through the turntable, and a first limiting member for limiting the rotary joint so that it cannot swing is arranged on the support frame.

[0006] By adopting the above technical solution, when in use, the rotary joint is restricted by the first restriction member so that it cannot swing, thereby reducing the swing amplitude of the drill rod during rotation, improving the verticality of the drill hole, and reducing the excessive consumption and waste of concrete caused by the expansion of the drill hole diameter; When the drilling of the device is completed and it needs to be transported to the next construction site, the drill hole is removed from the rotary joint, and then the support frame is rotated 90 degrees away from the winch through the hinge to make the support frame horizontal. At this time, the support frame contacts the top of the base plate, and the entire device can be transported, which is simple and convenient to use.

[0007] Preferably, the first limiting members each include slideways vertically arranged on opposite sides of the support frame, and the two slideways are vertically slidably connected with sliders, a limiting plate is horizontally provided on the rotary joint, and the limiting plate is located between the two sliders, one end of the two sliders close to the limiting plate is fixedly connected to the limiting plate, and the hook is arranged at the top of the limiting plate.

[0008] Preferably, the hinge comprises two vertical plates arranged at the top of the base plate, the support frame is located between the two vertical plates, and a rotation groove is provided on the side where the two vertical plates are close to each other, and a rotation shaft is rotatably connected in the two rotation grooves, and the sides where the two rotation shafts are close to each other are fixedly connected to the support frame, and a second limiting member is provided on the support frame for limiting the rotation of the support frame through the cooperation of the rotation shaft and the rotation groove.

[0009] Preferably, a retaining ring is horizontally provided at the top of the support frame through the mounting column, and one end of the wire rope with the hook passes through the retaining ring. The wire rope is provided with a fixing ring located below the retaining ring, and the fixing ring is located at one end of the wire rope close to the hook, and the outer diameter of the fixing ring is larger than the inner diameter of the retaining ring.

[0010] The two levers are connected along the longitudinal axis of the two guide rails, and the two guide rails are connected along the longitudinal axis of the two guide rails, wherein the two guide rails have the thermostatic action, and the two guide rails are connected along the longitudinal axis of the two guide rails.

[0011] Preferably, two opposite slide rails are horizontally provided at the top of the base plate, and the two slide rails are horizontally slidably connected with a slide seat, the two vertical plates are respectively arranged on the side where the two slide seats are close to each other, the top of the base plate is provided with two opposite convex strips along the length direction of the slide rails, the two slide rails are located between the two convex strips, the two slide seats are provided with a threaded groove on the side close to the convex strips, the two convex strips are provided with two connecting holes on the side away from the slide seat, and the two connecting holes are distributed along the length direction of the convex strips, the threaded groove on the slide seat corresponds to one of the connecting holes, and a first bolt is horizontally penetrated through the connecting hole corresponding to the threaded groove, and one end of the first bolt extends into the threaded groove and is threadedly connected to the threaded groove.

[0012] Preferably, when the support frame rotates 90 degrees away from the winch through the cooperation of the rotating shaft and the rotating groove, and the support frame contacts the bottom plate, the bottom end of the pressure plate close to the bottom plate is provided with a clamping plate that contacts the top end of the bottom plate.

[0013] Preferably, the two vertical frames are provided with support columns inclined downwardly installed through mounting parts in the middle and upper part of one side close to the winch, and the bottom ends of the two support columns pass through a connecting plate, and the connecting plate is installed on the top of the bottom plate through a second bolt, and the connecting plate is located between the two slide rails.

[0014] Preferably, the mounting member comprises a connecting column arranged obliquely downward in the upper middle part of the vertical frame close to the winch, and the end of the connecting column away from the vertical frame is coaxially rotatably connected to a threaded barrel, and the end of the support column away from the connecting plate is threadedly connected in the threaded barrel.

[0015] Preferably, the two sliding blocks are both rotatably connected to the limiting plate.

[0016] The beneficial effects of the present invention are as follows: when in use, the rotary joint is restricted by the first restriction member so that it cannot swing, thereby reducing the swing amplitude of the drill rod during rotation, improving the verticality of the drill hole, and reducing the over-consumption and waste of concrete caused by the expansion of the drill hole diameter; When the drilling of the device is completed and it needs to be transported to the next construction site, the drill hole is removed from the rotary joint, and then the support frame is rotated 90 degrees away from the winch through the hinge to make the support frame horizontal. At this time, the support frame contacts the top of the base plate, and the entire device can be transported, which is simple and convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of this embodiment; Figure 2 This is a schematic diagram of the structure of the support plate of this embodiment; Figure 3 for Figure 2 A schematic diagram of the structure of the middle A part; Figure 4 for Figure 2 A schematic diagram of the structure of the middle B part; Figure 5 It is a structural schematic diagram when the support frame rotates to a horizontal state; Figure 6 for Figure 5 The enlarged schematic diagram of the structure of the middle C part; Figure 7 It is a schematic diagram of the slide seat sliding horizontally on the slide rail towards the hoist after the support frame rotates to the horizontal position; Figure 8 It is a structural schematic diagram of an existing rotary drilling rig.

[0019] Description of reference numerals: In the figure: 1, base plate; 2, support frame; 3, guide wheel; 4, winch; 5, wire rope; 6, hook; 7, lifting ring; 8, swivel joint; 9, drill rod; 10, turntable; 12, slideway; 13, slider; 14, limit plate; 15, vertical plate; 16, rotating groove; 17, rotating shaft; 18, mounting column; 19, retaining ring; 20, fixing ring; 21, horizontal plate; 22, vertical frame; 23, support plate; 24, pressure plate; 25, sliding hole; 26, sliding column; 27, screw; 28, turntable; 29, slide rail; 30, slide seat; 31, convex strip; 32, threaded groove; 33, connecting hole; 34, first bolt; 35, clamping plate; 36, support column; 37, connecting plate; 38, second bolt; 39, connecting column; 40, threaded cylinder. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] A rotary drilling rig drill rod swing control device, such as Figure 1 and Figure 2 and Figure 3, including a base plate 1 and an inverted U-shaped support frame 2 hinged at the top of the base plate 1 through a hinge, a guide wheel 3 is provided at the top of the support frame 2, a winch 4 is provided on one side of the top of the base plate 1, and one end of a wire rope 5 on the winch 4 is passed around the guide wheel 3 and is provided with a hook 6, a swivel joint 8 is suspended on the hook 6 through a lifting ring 7, a drill rod 9 is vertically installed on the swivel joint 8, a turntable 10 is provided on the base plate 1, one end of the drill bit of the drill rod 9 passes through the turntable 10, and a first limiting member for limiting the swivel joint 8 so that it cannot swing is provided on the support frame 2.

[0022] like Figure 1 and Figure 2 and Figure 3 When in use, the rotary joint 8 is restricted by the first limiting member so that it cannot swing, thereby reducing the swing amplitude of the drill rod 9 during rotation, improving the verticality of the drill hole, and reducing the waste of concrete caused by the expansion of the drill hole diameter; When the drilling of the device is completed and it needs to be transported to the next construction site, the drill hole is removed from the rotary joint 8, and then the support frame 2 is rotated 90 degrees away from the winch 4 through the hinge to make the support frame 2 horizontal. At this time, the support frame 2 is in contact with the top of the base plate 1, and the entire device can be easily transported, which is simple and convenient to use.

[0023] like Figure 1 and Figure 2 The first limiting members include slideways 12 vertically arranged on opposite sides of the support frame 2, and sliders 13 are vertically slidably connected to the two slideways 12. A limiting plate 14 is horizontally arranged on the rotary joint 8, and the limiting plate 14 is located between the two sliders 13. One end of the two sliders 13 close to the limiting plate 14 is fixedly connected to the limiting plate 14, and the hook 6 is arranged at the top of the limiting plate 14.

[0024] like Figure 1 and Figure 2 When the hook 6 drives the rotary joint 8 to move vertically downward through the lifting ring 7, and the turntable 10 drives the drill rod 9 to rotate and advance, the limiting plate 14 and the two sliders 13 will move with the rotary joint 8. At this time, the slider 13 will slide vertically in the slideway 12. At this time, through the cooperation of the slider 13 and the slideway 12, the rotary joint 8 can be restricted from swinging, thereby reducing the swing amplitude of the drill rod 9 during the rotation process. It is simple and convenient to use.

[0025] like Figure 1 and Figure 2The hinge includes two vertical plates 15 arranged at the top of the base plate 1, the support frame 2 is located between the two vertical plates 15, and the two vertical plates 15 are provided with a rotation groove 16 on the side close to each other, and the two rotation grooves 16 are rotatably connected with a rotation shaft 17, and the two rotation shafts 17 are fixedly connected to the support frame 2 on the side close to each other, and the support frame 2 is provided with a second limiting member for limiting the rotation of the support frame 2 through the cooperation of the rotation shaft 17 and the rotation groove 16.

[0026] like Figure 1 and Figure 2 When the support frame 2 is vertical, the support frame 2 is restricted by the second limiting member so that it cannot be rotated by the cooperation of the rotating shaft 17 and the rotating groove 16. At this time, the support frame 2 can be kept in a vertical state during the drilling process. When the drilling of the device is completed and it needs to be transported to the next construction site, the restriction of the support frame 2 by the second limiting member is released, and then the support frame 2 is pushed to rotate 90 degrees along the axis of the rotating shaft 17 away from the winch 4, so that the support frame 2 is horizontal. At this time, the entire device can be easily transported, and it is simple and convenient to use.

[0027] like Figure 2 and Figure 3 The top of the support frame 2 is horizontally provided with a retaining ring 19 through the mounting column 18, and one end of the wire rope 5 with the hook 6 passes through the retaining ring 19. The wire rope 5 is provided with a fixing ring 20 located below the retaining ring 19, and the fixing ring 20 is located at one end of the wire rope 5 close to the hook 6. The outer diameter of the fixing ring 20 is larger than the inner diameter of the retaining ring 19. The purpose of this setting is that when the support frame 2 is pushed to rotate 90 degrees along the axis of the rotating shaft 17 in the direction away from the winch 4, the winch 4 is first opened to drive the fixing ring 20 through the wire rope 5. The ring 20 moves upward until the top of the fixed ring 20 contacts the bottom of the retaining ring 19, and then the hoist 4 releases the wire rope 5 while pushing the support frame 2 to rotate along the axis of the rotating shaft 17 in a direction away from the hoist 4. At this time, because the top of the fixed ring 20 contacts the bottom of the retaining ring 19, the support frame 2 can be rotated 90 degrees along the axis of the rotating shaft 17 in a direction away from the hoist 4 and then stably placed on the bottom plate 1 (such as Figure 5 and Figure 6 ), reducing the occurrence of the support frame 2 being directly hit on the bottom plate 1 by the influence of gravity when the support frame 2 rotates along the axis of the rotating shaft 17 in a direction away from the winch 4; After the device is transported to the desired position, the winch 4 retracts the wire rope 5. At this time, the support frame 2 can be driven to rotate upward along the axis of the rotating shaft 17 through the cooperation between the fixing ring 20 and the retaining ring 19 and the winch 4 and the wire rope 5 until the support frame 2 rotates to a vertical state. Then, the support frame 2 is restricted by the second limiting member so that it cannot rotate through the cooperation between the rotating shaft 17 and the rotating groove 16. It is simple and convenient to use.

[0028] like Figure 1 and Figure 2 and Figure 3 The support frame 2 includes a horizontal plate 21 and two vertical frames 22. The two rotating shafts 17 are respectively arranged on the two vertical frames 22, and the tops of the two vertical frames 22 are connected by the horizontal plate 21. At this time, the retaining ring 19 is arranged at the bottom end of the horizontal plate 21 through the mounting column 18, and the guide wheel 3 is arranged at the bottom end of the horizontal plate 21. The second limiting member includes two support plates 23 both arranged on the two vertical frames 22. The two support plates 23 on the vertical frames 22 are respectively located on both sides of the axis of the rotating shaft 17 and are both arranged on the vertical frames 22 away from the vertical plate 15. On one side, four pressing plates 24 are placed on the top of the bottom plate 1, and each pressing plate 24 corresponds to four supporting plates 23 one by one. Two sliding holes 25 distributed on the left and right are opened on the top of the four supporting plates 23, and sliding columns 26 are passed through the two sliding holes 25 from top to bottom, and the bottom ends of the sliding columns 26 are fixedly connected to the pressing plates 24. The top ends of the four pressing plates 24 are rotatably connected to screw rods 27, and the top ends of the four screw rods 27 pass through the supporting plates 23 and are threadedly connected to the supporting plates 23, and the top ends of the four screw rods 27 are provided with turntables 28.

[0029] like Figure 1 and Figure 2 and Figure 3 When the support frame 2 is vertical, the screw 27 is driven to rotate by the rotary disk 28, so that the pressure plate 24 moves downward until the bottom end of the pressure plate 24 is tightly against the top end of the bottom plate 1. At this time, the vertical support frame 2 can be restricted by the pressure plate 24, the screw 27 and the support plate 23, so that it cannot rotate through the cooperation of the rotating shaft 17 and the rotating groove 16. At the same time, the support frame 2 can be supported by the pressure plate 24, the screw 27 and the support plate 23; When the support frame 2 needs to be rotated 90 degrees along the axis of the rotating shaft 17 in the direction away from the hoist 4, the rotating disks 28 on the two support plates 23 away from the hoist 4 are first rotated to separate the pressure plate 24 from the bottom plate 1 until the top of the pressure plate 24 contacts the top of the support plate 23, and then the rotating disks 28 on the two support plates 23 close to the hoist 4 are rotated to make the pressure plate 24 close to the hoist 4 away from the support plate 23. At this time, the support frame 2 can be initially pushed along the axis of the rotating shaft 17 in the direction away from the hoist 4. When the top of the support frame 2 is located on one side of the rotating shaft 17, the support frame 2 will continue to rotate in the direction away from the hoist 4 under the influence of gravity. There is no need to directly push the support frame 2 to perform preliminary rotation manually. At the same time, by moving the pressure plate 24 close to the hoist 4 away from the support plate 23, the vertical support frame 2 can be reduced from rotating in the direction close to the hoist 4. When the support frame 2 is rotated to the horizontal, the two pressure plates 24 that are not in contact with the support plate 23 are still in a state of not contacting the support plate 23 (such as Figure 5 ); Then, when the device is transported to the required position, the support frame 2 rotates upward along the axis of the rotating shaft 17 until the two pressure plates 24 that are not in contact with the support plate 23 contact the top of the bottom plate 1, and then the support frame 2 continues to rotate upward along the axis of the rotating shaft 17 while rotating the turntable 28 close to the winch 4, so that the distance between the pressure plate 24 close to the winch 4 and the support plate 23 is reduced. In this process, the pressure plate 24 close to the winch 4 is always in contact with the bottom plate 1 until the support frame 2 is vertical. Through the above process, the support frame 2 cannot rotate in the direction close to the winch 4 after rotating from horizontal to vertical, which reduces the situation where the support frame 2 rotates along the axis of the rotating shaft 17 in the direction close to the winch 4 due to inertia or external factors after the support frame 2 rotates upward along the axis of the rotating shaft 17 to the vertical state. It is simple and convenient to use.

[0030] like Figure 1 and Figure 2 and Figure 4 Two opposite slide rails 29 are horizontally provided at the top of the bottom plate 1, and the two slide rails 29 are horizontally slidably connected with a slide seat 30, and the two vertical plates 15 are respectively arranged on the side where the two slide seats 30 are close to each other. Two opposite convex strips 31 are provided at the top of the bottom plate 1 along the length direction of the slide rails 29, and the two slide rails 29 are located between the two convex strips 31. The two slide seats 30 are provided with a thread groove 32 on one side close to the convex strip 31, and two connecting holes 33 are provided on the side of the two convex strips 31 away from the slide seat 30, and the two connecting holes 33 are distributed along the length direction of the convex strip 31. The thread groove 32 on the slide seat 30 corresponds to one of the connecting holes 33, and a first bolt 34 is horizontally penetrated in the connecting hole 33 corresponding to the thread groove 32, and one end of the first bolt 34 extends into the thread groove 32 and is threadedly connected with the thread groove 32.

[0031] like Figure 5 When the support frame 2 is rotated to the horizontal position, the first bolt 34 is removed, and then the slide 30 is pushed on the slide rail 29 to slide horizontally in the direction close to the winch 4 until the threaded barrel 40 on the slide 30 corresponds to the other connecting hole 33 on the convex strip 31, and then one end of the first bolt 34 is passed through the connecting hole 33 corresponding to the threaded barrel 40 and screwed into the thread groove 32. At this time, the overall length of the device can be reduced (such as Figure 7 ), for easy transportation.

[0032] like Figure 5When the support frame 2 rotates 90 degrees in the direction away from the winch 4 through the cooperation of the rotating shaft 17 and the rotating groove 16, when the support frame 2 contacts the bottom plate 1, the bottom end of the pressure plate 24 close to the bottom plate 1 is provided with a card plate 35 that contacts the top end of the bottom plate 1. The purpose of this arrangement is that when the support frame 2 rotates to a horizontal state and the bottom end of the support frame 2 contacts the top end of the bottom plate 1, the card plate 35 on the pressure plate 24 will contact the top end of the bottom plate 1. At this time, the pressing plate 24 provided with the card plate 35 is moved away from the supporting plate 23 through the rotating disk 28 until the card plate 35 and the pressing plate 24 pass horizontally from one side below the rotating shaft 17 (such as Figure 7 ), at this time, the support frame 2 in the horizontal state can be restricted by the pressure plate 24 provided with the clamping plate 35, so that it will not rotate upward due to the shaking during the transportation process, which is simple and convenient to use.

[0033] like Figure 1 , the two vertical frames 22 are both installed with support columns 36 at an angle downward through mounting parts on the middle and upper sides of the sides close to the winch 4, and the bottom ends of the two support columns 36 pass through a connecting plate 37, and the connecting plate 37 is installed on the top of the bottom plate 1 through a second bolt 38, and the connecting plate 37 is located between the two slide rails 29. The purpose of this arrangement is to support the vertical support frame 2 obliquely through the support column 36. When the support plate 23 is rotated to the horizontal, the second bolt 38 on the connecting plate 37 is first removed. When the support frame 2 is rotated to the horizontal, as shown in FIG. Figure 5 , the support column 36 can be removed through the installation part, which is simple and convenient to use.

[0034] like Figure 1 The mounting part includes a connecting column 39 which is arranged obliquely downward at the middle and upper part of the side of the vertical frame 22 close to the winch 4, and the end of the connecting column 39 away from the vertical frame 22 is coaxially rotatably connected with a threaded tube 40, and the end of the support column 36 away from the connecting plate 37 is threadedly connected in the threaded tube 40. The purpose of this arrangement is that when the support column 36 needs to be removed from the support frame 2, it only needs to be unscrewed from the threaded tube 40, and the support column 36 can be removed at this time, which is convenient for disassembly and assembly.

[0035] like Figure 2, the two sliders 13 are rotatably connected with the limiting plate 14. The purpose of this arrangement is that when the drill rod 9 needs to be installed on the rotary joint 8, the limiting plate 14 and the rotary joint 8 are first moved downward by the winch 4 and the wire rope 5. After moving to a suitable position, the limiting plate 14 is rotated so that the connecting end of the rotary joint 8 is away from the winch 4, and then one end of the drill rod 9 in a horizontal state on the ground is installed on the connecting end of the rotary joint 8, and then the limiting plate 14 and the rotary joint 8 are moved upward by the winch 4 and the wire rope 5. At this time, it is convenient to install the drill rod 9 and the rotary joint 8 upward. When the rotary joint 8 moves upward and the drill rod 9 is suspended, the drill rod 9 is aligned with the turntable 10, and then the limiting plate 14 is moved downward so that the bottom end of the drill rod 9 passes through the turntable 10, and the drill rod 9 is convenient to disassemble and assemble.

[0036] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A rotary drilling rig drill rod swing control device, characterized in that: The invention comprises a base plate (1) and an inverted U-shaped support frame (2) hinged to the top of the base plate (1) via a hinge, a guide wheel (3) being provided at the top of the support frame (2), a winch (4) being provided on one side of the top of the base plate (1), one end of a steel wire rope (5) on the winch (4) passing around the guide wheel (3) and being provided with a hook (6), a swivel joint (8) being suspended on the hook (6) via a lifting ring (7), a drill rod (9) being vertically mounted on the swivel joint (8), a turntable (10) being provided on the base plate (1), one end of a drill bit of the drill rod (9) passing through the turntable (10), and a first limiting member for limiting the swivel joint (8) so that it cannot swing is provided on the support frame (2).

2. A rotary drilling rig drill rod swing control device as claimed in claim 1, characterized in that: The first limiting members each comprise a slideway (12) vertically arranged on opposite sides of the support frame (2), and the two slideways (12) are vertically slidably connected to a slider (13), a limiting plate (14) is horizontally arranged on the rotary joint (8), and the limiting plate (14) is located between the two sliders (13), and one end of the two sliders (13) close to the limiting plate (14) is fixedly connected to the limiting plate (14), and the hook (6) is arranged at the top of the limiting plate (14).

3. A rotary drilling rig drill rod swing control device as claimed in claim 1, characterized in that: The hinged member comprises two vertical plates (15) arranged at the top of the bottom plate (1), the support frame (2) is located between the two vertical plates (15), and the two vertical plates (15) are provided with a rotation groove (16) on the sides close to each other, and the two rotation grooves (16) are rotatably connected with a rotation shaft (17), and the two rotation shafts (17) are fixedly connected to the support frame (2) on the sides close to each other, and the support frame (2) is provided with a second limiting member for limiting the rotation of the support frame (2) through the cooperation of the rotation shaft (17) and the rotation groove (16).

4. A rotary drilling rig drill rod swing control device as claimed in claim 3, characterized in that: A retaining ring (19) is horizontally provided at the top of the support frame (2) through a mounting column (18); one end of the steel wire rope (5) on which the hook (6) is provided passes through the retaining ring (19); a fixing ring (20) located below the retaining ring (19) is provided on the steel wire rope (5); the fixing ring (20) is located at one end of the steel wire rope (5) close to the hook (6); and the outer diameter of the fixing ring (20) is greater than the inner diameter of the retaining ring (19).

5. A rotary drilling rig drill rod swing control device as claimed in claim 4, characterized in that: The support frame (2) comprises a horizontal plate (21) and two vertical frames (22), the two rotating shafts (17) are respectively arranged on the two vertical frames (22), and the top ends of the two vertical frames (22) are connected by the horizontal plate (21), the retaining ring (19) is arranged at the bottom end of the horizontal plate (21) through the mounting column (18), and the guide wheel (3) is arranged at the bottom end of the horizontal plate (21), and the second limiting member comprises two supporting plates (23) both arranged on the two vertical frames (22), the two supporting plates (23) on the vertical frames (22) are respectively located on both sides of the axis of the rotating shaft (17) and are both arranged on the vertical frames (22) away from the vertical plate (15). ), four pressing plates (24) are placed on the top of the bottom plate (1), and each pressing plate (24) corresponds to four supporting plates (23) one by one, and two sliding holes (25) distributed on the left and right are opened on the top of the four supporting plates (23), and sliding columns (26) are passed through the two sliding holes (25) from top to bottom, and the bottom ends of the sliding columns (26) are fixedly connected to the pressing plates (24), and the top ends of the four pressing plates (24) are rotatably connected to the screw rods (27), and the top ends of the four screw rods (27) pass through the supporting plates (23) and are threadedly connected to the supporting plates (23), and the top ends of the four screw rods (27) are provided with rotating disks (28).

6. A rotary drilling rig drill rod swing control device as claimed in claim 5, characterized in that: Two opposing slide rails (29) are horizontally disposed at the top of the bottom plate (1), and the two slide rails (29) are horizontally slidably connected to slide seats (30). The two vertical plates (15) are respectively disposed on the sides of the two slide seats (30) close to each other. Two opposing convex strips (31) are disposed at the top of the bottom plate (1) along the length direction of the slide rails (29), and the two slide rails (29) are located between the two convex strips (31). The two slide seats (30) are each provided with a screw thread on one side close to the convex strips (31). The two protruding strips (31) are provided with two communication holes (33) on one side away from the slide seat (30), and the two communication holes (33) are distributed along the length direction of the protruding strips (31), the threaded groove (32) on the slide seat (30) corresponds to one of the communication holes (33), and a first bolt (34) is horizontally passed through the communication hole (33) corresponding to the threaded groove (32), and one end of the first bolt (34) extends into the threaded groove (32) and is threadedly connected to the threaded groove (32).

7. A rotary drilling rig drill rod swing control device as claimed in claim 6, characterized in that: When the support frame (2) rotates 90 degrees in a direction away from the winch (4) through the cooperation between the rotating shaft (17) and the rotating groove (16), and the support frame (2) contacts the bottom plate (1), a clamping plate (35) that contacts the top of the bottom plate (1) is provided at the bottom end of the pressure plate (24) close to the bottom plate (1).

8. A rotary drilling rig drill rod swing control device as claimed in claim 6, characterized in that: A support column (36) is installed in an inclined downward direction at the middle and upper part of one side of the two vertical frames (22) close to the winch (4) through a mounting member, and the bottom ends of the two support columns (36) are connected by a connecting plate (37). The connecting plate (37) is installed on the top of the bottom plate (1) through a second bolt (38), and the connecting plate (37) is located between the two slide rails (29).

9. A rotary drilling rig drill rod swing control device as claimed in claim 8, characterized in that: The mounting member comprises a connecting column (39) arranged obliquely downward at the middle upper part of a side of the vertical frame (22) close to the winch (4), and one end of the connecting column (39) away from the vertical frame (22) is coaxially rotatably connected to a threaded barrel (40), and one end of the supporting column (36) away from the connecting plate (37) is threadedly connected in the threaded barrel (40).

10. A rotary drilling rig drill rod swing control device as claimed in claim 2, characterized in that: The two sliders (13) are both rotatably connected to the limiting plate (14).

Images