Swing arm type rod supporting device and rotary drilling machine

Abstract

The swing arm type rod supporting device comprises a swing portion, a rod supporting portion, a rod supporting portion, a rod supporting portion, a rod supporting portion and a rod supporting portion, the driving mechanism is arranged between the drilling frame and the swinging part and is used for driving the swinging part to rotate; and the swing part is configured to be capable of abutting against the drill rod to the assembly position in the rotating process. According to the swing arm type rod supporting device, when a drill rod is assembled and disassembled, the swing part swings and abuts against the drill rod, the drill rod and the rod stabilizer are kept concentric, and therefore the drill rod can be assembled and disassembled conveniently, and due to the fact that the swing part is arranged in a rotating mode, as for drill rods with different diameters, only the rotating angle of the swing part needs to be well controlled. Therefore, the drill rod and the rod stabilizer can be concentrically aligned, and the drill rods with different diameters can be supported and straightened so that the drill rods can be conveniently assembled and disassembled.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary drills, in particular to a swing arm type support rod device and a rotary drill. Background Art

[0002] In the related art, when a rotary drill is performing an inclined hole drilling operation, Figure 1 As shown, the drill rod 100 may be bent and deformed at the connection position between the uppermost end and the shock absorber 120 under the slewing trolley 110 due to the sagging of its own weight, causing the drill rod 100 to be unable to be concentric with the rod stabilizer 140 on the drilling rig platform at the bottom of the drilling rig 130, thereby affecting the loading and unloading of the drill rod 100. In order to correct the deformation of the drill rod 100 and realize automatic loading and unloading of the drill rod 100, a support rod device is required to support the drill rod 100. Since the drill rods 100 of different diameters are used for drilling holes of different apertures on the same rotary drill rig, the support rod device is required to match drill rods 100 of different diameters. Therefore, there is an urgent need for a support rod device that can be used to support and straighten drill rods 100 of different diameters. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a swing arm type support rod device, which can support and straighten drill rods of different diameters to facilitate the connection and unloading of the drill rods.

[0004] The utility model also provides a rotary drill comprising the swing arm type support rod device.

[0005] According to the first embodiment of the utility model, the swing arm type handrail device comprises:

[0006] A swinging part, rotatably connected to the drilling frame;

[0007] A driving mechanism, disposed between the drill frame and the swinging part, and used for driving the swinging part to rotate;

[0008] Wherein, the swing part is configured such that the swing part can abut against the drill rod to an assembly position during the rotation process.

[0009] The swing arm type handrail device according to the embodiment of the utility model has at least the following beneficial effects:

[0010] The swing arm type support rod device adopting the above-mentioned structural arrangement can keep the drill rod and the rod stabilizer concentric by swinging the swing part and abutting the drill rod when connecting and unloading the drill rod, thereby facilitating the connection and unloading of the drill rod, and since the swing part is rotatable, for drill rods of different diameters, it is only necessary to control the rotation angle of the swing part to make the drill rod and the rod stabilizer concentrically aligned, that is, the drill rods of different diameters can be supported and straightened to facilitate the connection and unloading of the drill rods.

[0011] According to some embodiments of the present invention, the rotation axis of the swinging portion is horizontally distributed and perpendicular to the drill rod.

[0012] According to some embodiments of the utility model, the swing portion is provided with an abutment portion, and the abutment portion is provided with an arc-shaped surface adapted to the drill rod to abut the drill rod.

[0013] According to some embodiments of the utility model, the abutment portion includes an abutment wheel, the central axis of the abutment wheel is horizontally distributed and perpendicular to the drill rod, and the peripheral wall of the abutment wheel is provided with arc-shaped grooves distributed along its circumference, and the arc-shaped surface is formed by the arc-shaped grooves.

[0014] According to some embodiments of the present invention, the abutment wheel is rotatably arranged on the swinging portion around its own axis.

[0015] According to some embodiments of the present invention, the swinging portion is provided with a first shaft, and the abutment wheel is rotatably provided on the first shaft via a rolling bearing.

[0016] According to some embodiments of the utility model, the driving mechanism includes a cylinder, a cylinder body of the cylinder is hinged to one of the drilling frame and the swing part, and a piston rod of the cylinder is hinged to the other of the drilling frame and the swing part.

[0017] According to some embodiments of the utility model, a position sensor is provided in the oil cylinder for detecting the extended position of the piston rod.

[0018] According to some embodiments of the utility model, the driving mechanism further includes a hydraulic control system for controlling the extension and retraction of the oil cylinder, the hydraulic control system includes a hydraulic reversing valve, and the hydraulic reversing valve is connected to the oil cylinder via a hydraulic lock.

[0019] The rotary drill according to the second embodiment of the utility model comprises the swing arm support rod device described in the first embodiment.

[0020] The rotary drill according to the embodiment of the utility model has at least the following beneficial effects:

[0021] By adopting the swing arm type support rod device of the first aspect of the utility model, when connecting and unloading the drill rod, the swing part can swing and abut the drill rod, so that the drill rod and the rod stabilizer remain concentric, thereby facilitating the connection and unloading of the drill rod, and since the swing part is rotatable, for drill rods of different diameters, it is only necessary to control the rotation angle of the swing part to make the drill rod and the rod stabilizer concentrically aligned, that is, the drill rods of different diameters can be supported and straightened to facilitate the connection and unloading of the drill rods.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0024] Figure 1 It is a schematic diagram of the state of the prior art drill pipe when it is drooping;

[0025] Figure 2 It is a structural schematic diagram of a swing arm type handrail device according to an embodiment of the utility model;

[0026] Figure 3 This is a schematic diagram of the state of the embodiment of the utility model when the drill rod is connected;

[0027] Figure 4 It is a schematic diagram of the state of the embodiment of the utility model after the drill rod connection is completed;

[0028] Figure 5 This is a schematic diagram of the state of the embodiment of the utility model when the drill rod is unloaded;

[0029] Figure 6 It is a schematic diagram of a hydraulic control system according to an embodiment of the utility model.

[0030] Figure Number:

[0031] Drill rod 100, slewing trolley 110, shock absorber 120, drilling frame 130, rod stabilizer 140, storage rack 150, drill rod cup 160;

[0032] The swinging part 200, the abutting wheel 210, the arc groove 211, the first shaft 220, and the second shaft 230;

[0033] Oil cylinder 300;

[0034] Hydraulic control system 400 , hydraulic reversing valve 410 , hydraulic lock 420 . DETAILED DESCRIPTION

[0035] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0036] In the description of the present invention, it should be understood that the descriptions involving orientation, such as the orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0037] In the description of the present utility model, "a plurality" means more than two. If there is a description of "first" or "second", it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] In the prior art, such as Figure 1 As shown, a rotary trolley 110 is provided on the top of the drill frame 130 of the rotary drill, and a shock absorber 120 is provided on the lower side of the rotary trolley 110. The shock absorber 120 is used to connect the top of the drill rod 100. A drill frame platform is provided at the bottom of the drill frame 130, and a rod stabilizer 140 is installed on the drill frame platform. The rod stabilizer 140 is used to connect with the bottom end of the drill rod 100. When installing the drill rod 100, the drill rod 100 is first connected to the shock absorber 120, and then the drill rod 100 is lowered. The drill rack 130 is also provided with a swingable storage rack 150, and a drill rod cup 160 is provided at the bottom of the storage rack 150. When unloading the drill rod 100, the drill rod 100 is first separated from the stabilizer 140 and raised for a distance, and then the storage rack 150 is swung until the drill rod cup 160 is aligned with the drill rod 100, and then the drill rod 100 is lowered into the drill rod cup 160, and then the drill rod 100 is rotated to complete the storage work. However, when the rotary drill is performing an inclined hole drilling operation, the drill rod 100 is in an inclined state, and the connection position between the top of the drill rod 100 and the shock absorber 120 under the slewing trolley 110 will bend and deform due to the sagging of its own weight, causing the bottom end of the drill rod 100 to be unable to be concentric with the stabilizer 140, thereby affecting the connection and disconnection of the drill rod 100. In order to correct the deformation of the drill rod 100 and realize automatic connection and disconnection of the drill rod 100, a device is needed to correct and support the drill rod 100; in addition, since the same rotary drill uses drill rods 100 of different diameters to drill holes of different diameters, this requires that the device can also match drill rods 100 of different diameters.

[0040] Therefore, the utility model provides a swing arm type support rod device and a rotary drill, which can effectively solve the above problems.

[0041] Reference below Figures 2 to 6 The invention describes a swing arm type support rod device and a rotary drill according to an embodiment of the utility model.

[0042] The swing arm type handrail device according to the embodiment of the first aspect of the utility model comprises: a swing part 200 and a driving mechanism.

[0043] For example, the swinging portion 200 is rotatably connected to the drilling frame 130 .

[0044] The driving mechanism is disposed between the drilling frame 130 and the swinging part 200 , and is used to drive the swinging part 200 to rotate. Obviously, the driving mechanism can drive the swinging part 200 to swing back and forth within a certain angle range.

[0045] The swing part 200 is configured such that the swing part 200 can abut against the drill rod 100 to the assembly position during the rotation process, that is, the swing part 200 can abut against the drill rod 100 to make the drill rod 100 concentric with the rod stabilizer 140 during the rotation process.

[0046] When installing the drill rod 100, after the drill rod 100 is connected to the shock absorber 120, the drill rod 100 sags due to the influence of gravity, causing the center of the drill rod 100 to deviate from the center of the stabilizer 140. At this time, the driving mechanism can drive the swing part 200 to swing to a position abutting the drill rod 100, and then continue to drive the swing part 200 to swing, and the swing part 200 abuts against the drill rod 100 to push the drill rod 100 to swing to a position where the drill rod 100 and the stabilizer 140 are concentric, and then the drill rod 100 is slowly rotated and lowered to achieve the rod connection work, and then the driving mechanism drives the swing part 200 to retreat to avoid affecting the drilling work of the drill rod 100; when unloading the rod, the drill rod 100 can be rotated and raised first, so that the drill rod 100 is separated from the stabilizer 140 and raised a certain distance, and then the driving mechanism drives the swing part 200 to swing to a position abutting the drill rod 100 again, and Continue to drive the swing part 200 to swing, and the swing part 200 abuts the drill rod 100 to push the drill rod 100 to swing to a position where the drill rod 100 is concentric with the rod stabilizer 140, support the drill rod 100, and then make the storage rack 150 swing to a position where the drill rod cup 160 is concentric with the drill rod 100, lower the drill rod 100 into the drill rod cup 160, and rotate the drill rod 100 to achieve the storage of the drill rod 100; or when unloading the rod, the driving mechanism can first drive the swing part 200 to swing to a position where it abuts against the drill rod 100 and stop, support the drill rod 100, and then rotate and raise the drill rod 100, separate the drill rod 100 from the rod stabilizer 140 and rise a certain distance, and then make the storage rack 150 swing to a position where the drill rod cup 160 is concentric with the drill rod 100, lower the drill rod 100 into the drill rod cup 160, and rotate the drill rod 100 to achieve the storage of the drill rod 100.

[0047] The swing arm type support rod device with the above-mentioned structural arrangement can make the drill rod 100 and the stabilizer 140 remain concentric by swinging the swing part 200 and abutting the drill rod 100 when loading and unloading the drill rod 100, thereby facilitating the loading and unloading of the drill rod 100. Moreover, since the swing part 200 is rotatably arranged, for drill rods 100 of different diameters, it is only necessary to control the rotation angle of the swing part 200 to make the drill rod 100 and the stabilizer 140 concentrically aligned, that is, the drill rods 100 of different diameters can be supported and straightened to facilitate the loading and unloading of the drill rod 100.

[0048] In some embodiments of the present invention, as shown in the drawings, the rotation axis of the swing portion 200 is horizontally distributed and perpendicular to the drill rod 100. In this way, when the swing portion 200 rotates and abuts against the drill rod 100, the drooping drill rod 100 can be smoothly swung to be concentrically aligned with the stabilizer 140.

[0049] In some embodiments of the present invention, reference 2 and Figure 3 As shown, the swinging portion 200 is provided with an abutting portion, and the abutting portion is provided with an arc surface adapted to the drill rod 100 to abut the drill rod 100. By setting the arc surface, the outer wall of the drill rod 100 can be better fitted, and the arc surface can play a positioning role for the drill rod 100 to prevent the drill rod 100 from deviating along its own radial direction when the swinging portion 200 abuts and pushes the drill rod 100, so that the drill rod 100 can be more accurately concentrically aligned with the stabilizer 140.

[0050] In some embodiments of the present invention, reference 2 and Figure 3 As shown, the abutment portion includes an abutment wheel 210, the central axis of the abutment wheel 210 is horizontally distributed and perpendicular to the drill rod 100, and the peripheral wall of the abutment wheel 210 is provided with an arc groove 211 distributed along its circumference, and an arc surface is formed by the arc groove 211. It can be understood that in the process of the swinging portion 200 swinging and abutting the drill rod 100, the abutment position of the abutment portion and the drill rod 100 is constantly changing. In order to ensure the fitting effect with the outer wall of the drill rod 100 and the radial limiting effect on the drill rod 100, the abutment wheel 210 is provided in this embodiment and the arc groove 211 is provided on the peripheral wall of the abutment wheel 210 to form an arc surface. In this way, even if the abutment position of the abutment portion and the drill rod 100 changes, the fitting effect of the abutment portion and the outer wall of the drill rod 100 and the radial limiting effect on the drill rod 100 will not change, so the drill rod 100 can be smoothly pushed to a position concentrically aligned with the stabilizer 140.

[0051] In some embodiments of the present invention, reference 2 and Figure 3As shown, the abutment wheel 210 is rotatably arranged on the swinging part 200 around its own axis. In this way, when the drill rod 100 abuts against the abutment wheel 210 and is lifted and lowered axially, the abutment wheel 210 will be driven by the drill rod 100 to rotate, thereby reducing the friction resistance between the two, making the lifting and lowering of the drill rod 100 more stable and smooth, and reducing the wear of the drill rod 100 and the abutment wheel 210. In addition, an arc-shaped groove 211 is provided on the abutment wheel 210 to form an arc-shaped surface, which will not affect the rotational movement of the drill rod 100.

[0052] In some embodiments of the present invention, reference 2 and Figure 3 As shown, the swing part 200 is provided with a first shaft 220, and the contact wheel 210 is rotatably provided on the first shaft 220 through a rolling bearing, so that the contact wheel 210 is rotatably provided on the swing part 200, the rotation resistance is small, and the contact wheel 210 can rotate very smoothly. In some specific embodiments, the swing part 200 is rotatably provided on the drilling frame 130 through a second shaft 230, and the second shaft 230 is parallel to the first shaft 220.

[0053] In some embodiments of the present invention, referring to Figure 2 As shown, the driving mechanism includes an oil cylinder 300, and the oil cylinder 300 is a piston type. The cylinder body of the oil cylinder 300 is hinged to one of the drilling frame 130 and the swinging part 200, and the piston rod of the oil cylinder 300 is hinged to the other of the drilling frame 130 and the swinging part 200. The swinging part 200 is driven to swing by the telescopic movement of the oil cylinder 300, and the structure is simple and practical. In this embodiment, the cylinder body of the oil cylinder 300 is hinged to the drilling frame 130, and the piston rod of the oil cylinder 300 is hinged to the swinging part 200. The hinge axis between the cylinder body and the drilling frame 130, the hinge axis between the piston rod and the swinging part 200, the first axis 220, and the second axis 230 are parallel to each other.

[0054] In some embodiments of the utility model, a position sensor is provided in the oil cylinder 300, and the position sensor is used to detect the extended position of the piston rod. Obviously, for drill rods 100 of different diameters, the extended length of the piston rod of the oil cylinder 300 will be different. After the position sensor is provided, the extended position of the piston rod can be detected by the position sensor, so as to control the extended length of the piston rod, thereby matching drill rods 100 of different diameters.

[0055] In some embodiments of the present invention, referring to Figure 6As shown, the driving mechanism also includes a hydraulic control system 400 for controlling the extension and retraction of the oil cylinder 300. The hydraulic control system 400 includes a hydraulic reversing valve 410. The hydraulic reversing valve 410 is a three-position four-way valve. The hydraulic reversing valve 410 is connected to the oil cylinder 300 through a hydraulic lock 420. By setting the hydraulic lock 420, the extension length of the piston rod of the oil cylinder 300 can be locked to ensure that the swing part 200 stays at the desired position. The hydraulic lock 420 is a conventional technical means, and the hydraulic lock 420 of the structural form in the application number CN201620648390.8 can be used.

[0056] In one specific embodiment, referring to Figures 1 to 6 As shown, the swing arm type support rod device includes a swing part 200 and a driving mechanism. The swing part 200 is rotatably connected to the drill frame 130 through a second shaft 230. The driving mechanism includes a cylinder 300 and a hydraulic control system 400 for controlling the extension and retraction of the cylinder 300. The cylinder body of the cylinder 300 is hinged to the drill frame 130. The piston rod of the cylinder 300 is hinged to the swing part 200. The swing part 200 is driven to swing by the extension and retraction of the cylinder 300. The swing part 200 can abut against the drill rod 100 to the assembly position during the rotation process. The hydraulic control system 400 includes a hydraulic reversing valve 410. The hydraulic reversing valve 410 is a three-position four-way valve. The hydraulic reversing valve 410 is hydraulically The lock 420 is connected to the oil cylinder 300. The hydraulic lock 420 can lock the extension length of the piston rod of the oil cylinder 300 to ensure that the swing part 200 stays at the required position. A position sensor is provided in the oil cylinder 300, and the position sensor is used to detect the extension position of the piston rod; the swing part 200 is provided with a first shaft 220, and an abutment wheel 210 is rotatably provided on the first shaft 220 through a rolling bearing. The central axis of the abutment wheel 210 is horizontally distributed and perpendicular to the drill rod 100. The peripheral wall of the abutment wheel 210 is provided with an arc groove 211 distributed along its circumference, and an arc surface is formed by the arc groove 211. The arc surface is adapted to the drill rod 100 for abutting the drill rod 100.

[0057] The rotary drill according to the second aspect of the utility model comprises the swing arm support rod device of the first aspect. By adopting the swing arm support rod device of the first aspect, when loading and unloading the drill rod 100, the swing part 200 can swing and abut the drill rod 100, so that the drill rod 100 and the stabilizer 140 remain concentric, thereby facilitating the loading and unloading of the drill rod 100. Moreover, since the swing part 200 is rotatably arranged, for drill rods 100 of different diameters, it is only necessary to control the rotation angle of the swing part 200 so that the drill rod 100 and the stabilizer 140 can be concentrically aligned, that is, the drill rods 100 of different diameters can be supported and straightened to facilitate the loading and unloading of the drill rod 100.

[0058] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A swing arm type handrail device, characterized in that: include: A swinging part (200) rotatably connected to the drilling frame (130); A driving mechanism, disposed between the drilling frame (130) and the swinging part (200), and used for driving the swinging part (200) to rotate; The swinging part (200) is configured such that the swinging part (200) can abut against the drill rod (100) to an assembly position during the rotation process.

2. The swing arm type handrail device according to claim 1, characterized in that: The rotation axis of the swinging part (200) is horizontally distributed and perpendicular to the drill rod (100).

3. The swing arm type handrail device according to claim 1, characterized in that: The swinging portion (200) is provided with an abutting portion, and the abutting portion is provided with an arc-shaped surface adapted to the drill rod (100) so as to abut against the drill rod (100).

4. The swing arm type handrail device according to claim 3, characterized in that: The abutment portion comprises an abutment wheel (210), the central axis of the abutment wheel (210) is horizontally distributed and perpendicular to the drill rod (100), and the peripheral wall of the abutment wheel (210) is provided with arc-shaped grooves (211) distributed along its circumference, and the arc-shaped surface is formed by the arc-shaped grooves (211).

5. The swing arm type handrail device according to claim 4, characterized in that: The abutment wheel (210) is arranged on the swinging part (200) so as to be rotatable around its own axis.

6. The swing arm type handrail device according to claim 5, characterized in that: The swinging part (200) is provided with a first shaft (220), and the contact wheel (210) is rotatably arranged on the first shaft (220) via a rolling bearing.

7. The swing arm type handrail device according to claim 1, characterized in that: The driving mechanism comprises an oil cylinder (300), a cylinder body of the oil cylinder (300) being hinged to one of the drilling frame (130) and the swinging part (200), and a piston rod of the oil cylinder (300) being hinged to the other of the drilling frame (130) and the swinging part (200).

8. The swing arm type handrail device according to claim 7, characterized in that: A position sensor is arranged inside the oil cylinder (300) for detecting the extended position of the piston rod.

9. The swing arm type handrail device according to claim 7, characterized in that: The driving mechanism further comprises a hydraulic control system (400) for controlling the extension and retraction of the oil cylinder (300), wherein the hydraulic control system (400) comprises a hydraulic reversing valve (410), and the hydraulic reversing valve (410) is connected to the oil cylinder (300) via a hydraulic lock (420).

10. A rotary drill, characterized in that: The invention comprises the swing arm type handrail device as described in any one of claims 1 to 9.

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