Rack folding device for novel drilling machine

Abstract

The invention provides a rack folding device for a novel drilling machine, and relates to the technical field of exploration engineering, the rack folding device comprises a fixed rack, a movable rack and a rotating mechanism, the fixed rack is fixedly connected with a lifting mechanism of the drilling machine; the movable rack and the fixed rack have the same cross section, and the movable rack is rotationally connected with the fixed rack; the two ends of the rotating structure are fixedly connected with the movable rack and the fixed rack correspondingly. Further, the rotating mechanism comprises a folding oil cylinder, the outer cylinder end of the folding oil cylinder is hinged to the fixed rack through an oil cylinder pin, and the piston rod end of the folding oil cylinder is connected with the movable rack through a movable hinge assembly. The folding oil cylinder driving and self-locking bolt fixing design simplifies the unfolding and fixing process of the rack, and high-strength operation of traditional manual carrying and segmented assembling is avoided; and the chain tensioning oil cylinder is matched with the hydraulic lock for use, so that stable operation of the drill rod is ensured, and equipment failure and personnel accidental injury caused by chain looseness or vibration are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of exploration engineering, and more particularly, to a frame folding device for a new type of drilling rig. Background Art

[0002] With the large-scale construction of high-speed railways and the widespread application of initial route design surveys and dynamic design construction plans, the demand for ultra-deep exploration hole drilling at the construction site has increased significantly. Existing drilling technologies are limited by the length of the traditional drilling rig frame, and generally use short drill pipes with a length of 1.5 meters for operation. The short drill pipes need to be frequently installed and disassembled, resulting in low drilling efficiency. Moreover, during the operation of workers, due to the repeated handling and connection of drill pipes, the risk of accidental injury has increased significantly. Currently, some technologies attempt to adapt to longer drill pipes by increasing the length of the frame. However, due to the rigid structure design of the frame, it is difficult to achieve rapid folding and transportation, and the bulky overall structure further exacerbates the on-site assembly difficulty and safety hazards. Existing solutions mostly rely on manual reinforcement or segmented frames, but there are problems such as insufficient stability and cumbersome operation, and they cannot fundamentally improve efficiency and safety.

[0003] Based on the above disadvantages of the existing technology, there is an urgent need for a frame folding device for a new type of drilling rig. Summary of the Invention

[0004] The purpose of the present invention is to provide a frame folding device for a new type of drilling rig to improve the above problems. To achieve the above purpose, the technical solutions adopted by the present invention are as follows:

[0005] The present application provides a frame folding device for a new type of drilling rig, including a fixed frame, a movable frame, and a rotating mechanism. The fixed frame is fixedly connected to the lifting mechanism of the drilling rig; the movable frame has the same cross-section as the fixed frame, and the movable frame is rotatably connected to the fixed frame; both ends of the rotating structure are fixedly connected to the movable frame and the fixed frame respectively.

[0006] Further, the rotating mechanism includes a folding oil cylinder. The outer cylinder end of the folding oil cylinder is hinged to the fixed frame through an oil cylinder pin, and the piston rod end of the folding oil cylinder is connected to the movable frame through a movable hinge assembly.

[0007] Further, the movable hinge assembly includes a hinge shaft and a hinge shaft nut. The hinge shaft sequentially passes through the side wall of the movable frame and the ear plate at the piston rod end of the folding oil cylinder, and is fixedly locked in both directions through the hinge shaft nut.

[0008] Further, a frame fixing bolt is provided between the movable frame and the fixed frame, and the frame fixing bolt realizes self-locking fixation through the corresponding bolt holes of the movable frame and the fixed frame.

[0009] Furthermore, the specification of the frame fixing bolts is M16×80, the bolt grade is 12.9, and the number is 6.

[0010] Furthermore, a chain tensioning cylinder is provided in the end of the movable frame away from the fixed frame, the piston rod end of the chain tensioning cylinder is connected to the chain tensioning wheel, and the outer cylinder body of the chain tensioning cylinder is fixed to the end plate of the movable frame by bolts.

[0011] Furthermore, the installation position of the chain tensioner is located inside the front end of the movable frame.

[0012] Furthermore, a hydraulic lock is provided on the chain tensioning cylinder.

[0013] Furthermore, a clamping and centralizing device is provided on the movable frame, a drill rod guide channel is provided inside the clamping and centralizing device, and an inner wall of the drill rod guide channel cooperates with a male thread at the front end of the drill rod.

[0014] Furthermore, the cross-sections of the movable frame and the fixed frame are rectangular hollow steel pipe structures, and the contact surfaces of the movable frame and the fixed frame are provided with a wear-resistant layer.

[0015] The beneficial effects of the present invention are:

[0016] The folding cylinder drive and self-locking bolt fixing design of the present invention simplifies the frame deployment and fixing process, avoiding the high-intensity operation of traditional manual handling and segmented assembly; the coordinated use of the chain tensioning cylinder and the hydraulic lock ensures the stable operation of the drill rod and reduces equipment failures and accidental injuries to personnel caused by chain loosening or vibration.

[0017] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a structural schematic diagram of a frame folding device for a new type of drilling rig described in this application;

[0020] Figure 2It is a structural diagram of the working state of the frame folding device for the new type of drilling rig;

[0021] Figure 3 It is a structural diagram of the transportation state of the frame folding device for the new type of drilling rig;

[0022] Figure 4 It is Figure 2 the K-direction view of

[0023] Figure 5 It is Figure 4 the A-A cross-sectional view of

[0024] Markings in the figure: 1, fixed frame; 2, movable frame; 21, chain tensioning oil cylinder; 22, chain tensioning wheel; 23, clamping and centering device; 3, rotating mechanism; 31, folding oil cylinder; 32, oil cylinder pin; 33, movable hinge assembly; 4, frame fixing bolt; 5, lifting mechanism. Specific embodiments

[0025] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0026] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0027] As Figure 1 shown, Figure 1The structural schematic diagram of the frame folding device for a new type of drilling rig is shown. This embodiment provides a frame folding device for a new type of drilling rig, which includes a fixed frame 1, a movable frame 2, and a rotating mechanism 3. The fixed frame 1 plays a role of support and stability in the overall structure of the drilling rig, and is connected to the lifting mechanism of the drilling rig at the same time to ensure the stability and precise control of the equipment during the drilling process. The movable frame 2 has the same cross-sectional design as the fixed frame 1. The similarity of this structure enables the movable frame 2 to closely cooperate with the fixed frame 1, and through the way of rotational connection, allows the movable frame 2 to be flexibly folded or unfolded when needed, improving the adjustability of the device and the convenience of operation. The two ends of the rotating mechanism 3 are respectively connected to the movable frame 2 and the fixed frame 1. This design ensures the structural stability of the entire device, prevents loosening or unnecessary offset during the working process, and thus improves the safety and operation efficiency of the equipment. Through this structural design, the process of installing and disassembling the frame in the drilling operation can be significantly simplified, and at the same time, the high-intensity physical labor and potential safety risks caused by manual installation and disassembly in traditional drilling equipment can be avoided.

[0028] Preferably, the rotating mechanism 3 includes a folding oil cylinder 31. The outer cylinder end of the folding oil cylinder 31 is hinged to the fixed frame 1 through an oil cylinder pin 32, and the piston rod end of the folding oil cylinder 31 is connected to the movable frame 2 through a movable hinge assembly 33. This design simplifies the frame folding process, provides a more convenient and efficient operation method, and at the same time, through the drive of the oil cylinder, the unfolding and retracting actions of the movable frame 2 can be accurately controlled.

[0029] Preferably, as Figure 1 , Figure 2 , Figure 3 and Figure 5 shown, the movable hinge assembly 33 includes a hinge shaft and a hinge shaft nut. The hinge shaft sequentially passes through the side wall of the movable frame 2 and the ear plate at the piston rod end of the folding oil cylinder 31, and is bidirectionally locked and fixed through the hinge shaft nut. This design ensures that the hinged components can maintain structural stability under high loads and frequent operations, avoids loosening or failure at the hinged parts, and further enhances the durability and operation reliability of the entire frame folding device.

[0030] Preferably, as Figure 4 shown, a frame fixing bolt 4 is provided between the movable frame 2 and the fixed frame 1. The frame fixing bolt 4 is self-locked and fixed through the corresponding bolt holes of the movable frame 2 and the fixed frame 1. This self-locking mechanism not only simplifies the installation and disassembly process, but also ensures the stability during the drilling operation, reducing the safety problems that may be caused by improper operation.

[0031] Preferably, the specification of the frame fixing bolt 4 is M16×80, the bolt grade is 12.9, and the number is 6.

[0032] Preferably, a chain tensioning oil cylinder 21 is provided in the end of the movable frame 2 away from the fixed frame 1, the piston rod end of the chain tensioning oil cylinder 21 is connected to the chain tensioning wheel 22, and the outer cylinder body of the chain tensioning oil cylinder 21 is fixed to the end plate of the movable frame 2 by bolts. The piston rod end of the chain tensioning oil cylinder 21 is connected to the chain tensioning wheel 22 to ensure that the chain tension is always in a suitable range during the folding or unfolding process of the movable frame 2, avoiding mechanical failure or equipment damage caused by loose or overtightened chains.

[0033] Preferably, the chain tensioner 22 is installed at the innermost part of the front end of the movable frame 2 .

[0034] Preferably, a hydraulic lock is provided on the chain tensioning oil cylinder 21. This design can provide chain tensioning force while preventing the oil cylinder from accidentally sliding or adjusting without control, further improving the safety of the overall equipment.

[0035] Preferably, a clamping stabilizer 23 is also designed on the movable frame 2. A drill rod guide channel is provided in the clamping stabilizer 23. The inner wall of the channel cooperates with the male thread at the front end of the drill rod to ensure that the drill rod can be operated stably and accurately during use, avoiding deviation or damage caused by poor guidance.

[0036] Preferably, the cross-section of the movable frame 2 and the fixed frame 1 is a rectangular hollow steel pipe structure, and the contact surface of the movable frame 2 and the fixed frame 1 is provided with a wear-resistant layer. This structure improves the strength of the frame while effectively reducing the overall weight. In addition, the contact surface adopts a wear-resistant layer design, which can effectively improve the wear resistance of the frame in long-term use, reduce damage caused by friction, and thus extend the service life of the equipment.

[0037] Furthermore, the present invention discloses a method for using the frame folding device for the novel drilling rig, which specifically includes:

[0038] The first step is to assemble the folding device (the equipment has been installed and debugged before leaving the factory): connect the movable frame 2 and the fixed frame 1 through the hinge shaft, then connect the cylinder end of the folding cylinder 31 to the fixed frame 1 through the cylinder pin 32, and connect the front end of the folding cylinder piston rod to the movable frame 2.

[0039] The second step is to push the operating handle of the folding cylinder 31 to extend the piston rod end of the folding cylinder 31, and the cylinder end of the folding cylinder 31 rotates upward around the cylinder pin 32 on the fixed frame 1, so that the piston rod end of the folding cylinder 31 pushes the movable frame 2 to rotate around the hinge axis to a horizontal state, such as Figure 3As shown, the frame fixing bolts 4 (bolt size is 6 M16×80, bolt grade 12.9) are passed through the bolt holes corresponding to the movable frame 2 and the fixed frame 1 to connect the fixed frame 1 and the movable frame 2 as a whole, and then the double nuts are screwed on to produce a self-locking function and lock. Then the chain tensioning oil cylinder 21 operating handle is pushed to extend the piston rod of the chain tensioning oil cylinder 21. The front end face of the chain tensioning oil cylinder 21 (cylinder outer cylinder body) is fixed to the front end bolt fixing plate of the frame by bolts. The front end bolt fixing plate of the frame is located inside the movable frame 2. The piston of the chain tensioning oil cylinder 21 pushes the chain tensioning wheel 22 fixed at its front end forward, thereby realizing the tensioning of the chain, so that the drilling rig reaches the chain tensioning use state. The chain tensioning oil cylinder 21 is installed with a hydraulic lock to ensure that the chain is always in a tensioned state.

[0040] The third step is to install the drill pipe and start working: connect the inner thread at the rear end of the drill pipe to the outer thread of the power head connection plate, and pass the male thread at the front end of the drill pipe through the clamping stabilizer 23 at the front end of the movable frame 2 to connect the inner thread of the coring drill tool to ensure the stability of the drill pipe, and start normal drilling. During the working process, the inner thread at the rear end of the drill pipe is always connected to the power head power connection plate, and the front end of the drill pipe passes through the stabilizer to connect the coring drill tool and is always in the hole, so the movable frame 2 is not subject to the rotating torque of the drill pipe.

[0041] Step 4: Complete drilling: After drilling is completed, remove the drill rod, remove the frame fixing bolts 4, retract the chain tensioning cylinder 21, and retract the folding cylinder 31 to retract the movable frame 2 after the chain is completely loosened. Figure 2 shown.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0043] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A folding device for the frame of a new type of drilling rig, characterized in that, Comprising: A fixed frame (1), which is fixedly connected to the lifting mechanism (5) of the drill rig; A movable frame (2), which has the same cross-section as the fixed frame (1), and the movable frame (2) is rotatably connected to the fixed frame (1); And A rotating mechanism (3), with both ends of the rotating structure fixedly connected to the movable frame (2) and the fixed frame (1) respectively.

2. The folding device for the frame of the new drilling rig according to claim 1, characterized in that: The rotating mechanism (3) includes a folding oil cylinder (31), the outer cylinder end of the folding oil cylinder (31) is hinged to the fixed frame (1) through an oil cylinder pin (32), and the piston rod end of the folding oil cylinder (31) is connected to the movable frame (2) through a movable hinge assembly (33).

3. The folding device for the frame of the new drilling rig according to claim 2, characterized in that: The movable hinge assembly (33) includes a hinge shaft and a hinge shaft nut. The hinge shaft sequentially passes through the side wall of the movable frame (2) and the ear plate at the piston rod end of the folding oil cylinder (31), and is fixedly locked in both directions by the hinge shaft nut.

4. The folding device for the frame of the new type of drilling rig according to claim 1, wherein: A frame fixing bolt (4) is provided between the movable frame (2) and the fixed frame (1), and the frame fixing bolt (4) realizes self-locking fixation through the corresponding bolt holes of the movable frame (2) and the fixed frame (1).

5. The folding device for the frame of the new drilling rig according to claim 4, characterized in that: The frame fixing bolt (4) has a specification of M16×80, a bolt grade of 12.9, and a quantity of 6.

6. The folding device for the frame of the new drill rig according to claim 1, characterized in that: A chain tensioning oil cylinder (21) is arranged inside the end of the movable frame (2) far from the fixed frame (1). The piston rod end of the chain tensioning oil cylinder (21) is connected to a chain tensioning wheel (22), and the outer cylinder body of the chain tensioning oil cylinder (21) is fixed to the end plate of the movable frame (2) by bolts.

7. The folding device for the frame of a new type of drilling rig according to claim 6, characterized in that: The installation position of the chain tensioning wheel (22) is inside the foremost end of the movable frame (2).

8. The folding device for the frame of a new type of drilling rig according to claim 6, characterized in that: A hydraulic lock is provided on the chain tensioning oil cylinder (21).

9. The folding device for the frame of the new type of drilling rig according to claim 1, characterized in that: A clamping and centering device (23) is provided on the movable frame (2). A drill pipe guiding channel is arranged inside the clamping and centering device (23), and the inner wall of the drill pipe guiding channel is matched with the male thread at the front end of the drill pipe.

10. The folding device for the frame of the new drilling rig according to claim 1, characterized in that: The cross-section of the movable frame (2) and the fixed frame (1) is a rectangular hollow steel pipe structure, and a wear-resistant layer is provided on the contact surface between the movable frame (2) and the fixed frame (1).

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