Drill rod dismounting structure

Abstract

The utility model discloses a drill rod dismounting structure, which comprises a lower rod clamping mechanism, a lower rod clamping mechanism, a lower rod clamping mechanism and a lower rod clamping mechanism, the lower clamping rod mechanism comprises a first main body structure; the first main body structure is provided with a first mounting pin; the upper rod clamping mechanism is clamped on the upper drill rod; the upper clamping rod mechanism comprises a second main body structure; the second main body structure is provided with a second mounting pin; the first end in the length direction of the telescopic mechanism is hinged to the first mounting pin, and the second end in the length direction is hinged to the second mounting pin; the telescopic mechanism acts to drive the upper rod clamping mechanism to rotate relative to the lower rod clamping mechanism, and then connection of the upper drill rod and the lower drill rod is loosened. According to the embodiment of the utility model, the drill rod dismounting structure is suitable for dismounting the drill rods, and can reduce manual operation, improve the rod dismounting efficiency and reduce the labor intensity and the operation risk.

Description

Technical Field

[0001] The utility model relates to the technical field of mining machinery, in particular to a drill rod disassembly structure. Background Art

[0002] When conducting medium- to deep-hole drilling and blasting construction in mines, drill rods need to be connected and unloaded according to the hole depth. Usually, drill rods are connected by threads. However, during the deep-hole drilling operation of a down-the-hole drill rig, the threads between the drill rods are rotated and tightened. Therefore, when unloading the drill rods, the adhesion between the drill rods makes manual unloading difficult, resulting in low unloading efficiency, high labor intensity, and safety hazards. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a drill rod disassembly structure suitable for unloading drill rods, which can reduce manual work, improve unloading efficiency, and reduce labor intensity and operation risks.

[0004] The drill rod disassembly structure according to the embodiment of the utility model includes:

[0005] A lower clamping rod mechanism is clamped to the lower drill rod; the lower clamping rod mechanism includes a first main body structure, and the first main body structure is provided with a first mounting pin;

[0006] An upper clamping rod mechanism, clamped to the upper drill rod; the upper clamping rod mechanism includes a second main body structure, and the second main body structure is provided with a second mounting pin;

[0007] The telescopic mechanism has a first end in the length direction hinged to the first mounting pin, and a second end in the length direction hinged to the second mounting pin; the movement of the telescopic mechanism can drive the upper clamping rod mechanism to rotate relative to the lower clamping rod mechanism, thereby loosening the connection between the upper drill rod and the lower drill rod.

[0008] The drill rod disassembly structure according to the embodiment of the utility model has at least the following beneficial effects:

[0009] The upper drill rod is clamped by the upper clamping rod mechanism, the lower clamping rod is clamped by the lower clamping rod mechanism, and then the upper clamping rod mechanism is rotated relative to the lower clamping rod mechanism to loosen the connection between the upper drill rod and the lower drill rod. Compared with manual unloading of the drill rod, the drill rod disassembly structure of this embodiment can greatly reduce the difficulty of unloading the drill rod, thereby improving the efficiency of unloading the drill rod, reducing the labor intensity of unloading the drill rod, and improving the safety of the unloading operation.

[0010] According to some embodiments of the present invention, the first main body structure is provided with an annular groove, and the second main body structure is provided with a clamping block, which can be embedded in the annular groove to connect the first main body structure and the second main body structure; when the upper clamping rod mechanism rotates relative to the lower clamping rod mechanism, the clamping block rotates along the annular groove.

[0011] According to some embodiments of the present invention, the first main structure is provided with a first through hole for the lower drill rod to pass through, and the annular groove is provided on the outer periphery of the first through hole and on the upper portion of the first main structure;

[0012] The second main body structure is provided with a second through hole for the upper drill rod to pass through. The clamping block is arranged at the lower part of the second main body structure, and the clamping block extends in the radial direction of the second through hole.

[0013] According to some embodiments of the present invention, a limit block is provided in the annular groove, and the limit block is used to abut against the clamping block to limit the maximum rotation angle of the first main body structure.

[0014] According to some embodiments of the present invention, the lower clamping rod mechanism also includes two first clamping assemblies, which are relatively arranged at the two ends of the first main structure; the first clamping assembly includes a first clamping block, and the first clamping blocks of the two first clamping assemblies slide relative to each other to clamp or loosen the lower drill rod.

[0015] According to some embodiments of the present invention, the first clamping assembly also includes a first transition block and a first telescopic cylinder, the first clamping block is connected to the movable end of the first telescopic cylinder through the first transition block, and the fixed end of the first telescopic cylinder is detachably mounted on the first main structure.

[0016] According to some embodiments of the present invention, the first transition block is provided with a first slot, the first clamping block is installed in the first slot, and the first clamping block and the first transition block are connected by fasteners.

[0017] According to some embodiments of the present invention, the first clamping block includes a first clamping surface, the first clamping surface is an arc-shaped surface, and the first clamping surface is installed with wear-resistant teeth.

[0018] According to some embodiments of the present invention, the first clamping surface is provided with a mounting hole, the wear-resistant tooth is mounted in the mounting hole, and the wear-resistant tooth is connected to the mounting hole through an interference fit.

[0019] According to some embodiments of the present invention, first operating holes penetrating the first main structure are provided on both sides of the first main structure in the width direction, and the first operating holes are connected to the first through hole.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0022] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0023] Figure 2 This is a schematic diagram of the assembly of an embodiment of the utility model;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 This is a structural diagram of the lower clamping rod mechanism according to an embodiment of the present utility model;

[0026] Figure 5 This is a structural diagram of the upper clamping rod mechanism according to an embodiment of the present utility model;

[0027] Figure 6 This is a cross-sectional view of the upper clamping rod mechanism according to an embodiment of the present utility model.

[0028] Figure Number:

[0029] Lower clamping rod mechanism 100, lower drill rod 101, first main structure 110, first mounting pin 111, annular groove 112, limit block 113, first through hole 114, first operating hole 115, first clamping block 120, first clamping surface 121, wear-resistant teeth 122, first transition block 130, first clamping groove 131, first telescopic cylinder 140;

[0030] Upper clamping rod mechanism 200, upper drill rod 201, second main body structure 210, second mounting pin 211, clamping block 212, second through hole 213, second operating hole 214, second clamping block 220, second clamping surface 221, second transition block 230, second clamping groove 231, second telescopic cylinder 240;

[0031] Telescopic mechanism 300. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail. 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 intended only to explain the present invention and are not to be construed as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying 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.

[0034] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting 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.

[0036] Reference Figures 1 to 6 A drill rod disassembly structure according to an embodiment of the present invention includes a lower clamping rod mechanism 100, an upper clamping rod mechanism 200, and a telescopic mechanism 300. The lower clamping rod mechanism 100 is clamped to the lower drill rod 101, and the upper clamping rod mechanism 200 is clamped to the upper drill rod 201. The two ends of the telescopic mechanism 300 are respectively connected to the lower clamping rod mechanism 100 and the upper clamping rod mechanism 200. The lower clamping rod mechanism 100 includes a first main body structure 110, which is provided with a first mounting pin 111; the upper clamping rod mechanism 200 includes a second main body structure 210, which is provided with a second mounting pin 211; the first end of the telescopic mechanism 300 in the longitudinal direction is hinged to the first mounting pin 111, and the second end in the longitudinal direction is hinged to the second mounting pin 211; the movement of the telescopic mechanism 300 can drive the upper clamping rod mechanism 200 to rotate relative to the lower clamping rod mechanism 100, thereby loosening the connection between the upper drill rod 201 and the lower drill rod 101. The first mounting pin 111 and the second mounting pin 211 are arranged on the same side in the width direction of the drill rod disassembly structure, and the telescopic mechanism 300 is preferably a telescopic cylinder.

[0037] The upper drill rod 201 is clamped by the upper clamping rod mechanism 200, and the lower clamping rod mechanism 100 clamps the lower drill rod 101. Then, the upper clamping rod mechanism 200 is rotated relative to the lower clamping rod mechanism 100 to loosen the connection between the upper drill rod 201 and the lower drill rod 101. Compared with manual unloading of the drill rod, the drill rod disassembly structure of this embodiment can greatly reduce the difficulty of unloading the drill rod, thereby improving the efficiency of unloading the drill rod, reducing the labor intensity of unloading the drill rod, and improving the safety of the unloading operation.

[0038] It should be understood that when the upper drill rod 201 and the lower drill rod 101 are disengaged, the upper drill rod 201 is generally connected to the rock drilling rig, and the top of the upper drill rod 201 is also connected to the rock drilling rig through a threaded connection; the lower drill rod 101 is connected to the drill bit, and the well drilling rig equipment is also provided with a clamping mechanism to clamp the lower drill rod 101. Therefore, when the drill rod disassembly structure of this embodiment is used to loosen the upper drill rod 201 and the lower drill rod 101, the lower drill rod 101 is usually difficult to rotate, that is, the lower drill rod 101 is fixed, and only the upper drill rod 201 can rotate.

[0039] In the embodiment of the present invention, the first main structure 110 is provided with an annular groove 112, and the second main structure 210 is provided with a clamping block 212. The clamping block 212 can be embedded in the annular groove 112 to connect the first main structure 110 and the second main structure 210; when the upper clamping rod mechanism 200 rotates relative to the lower clamping rod mechanism 100, the clamping block 212 rotates along the annular groove 112. Figure 4 As shown, the first main structure 110 is provided with a first through hole 114 for the lower drill rod 101 to pass through, and the annular groove 112 protrudes from the upper surface of the first main structure 110, and the annular groove 112 is provided on the outer periphery of the first through hole 114; Figure 5 As shown, the second main structure 210 is provided with a second through hole 213 for the upper drill rod 201 to pass through, and the clamping block 212 is provided at the lower part of the second main structure 210 and protrudes from the lower surface of the second main structure 210. The clamping block 212 extends in the radial direction of the second through hole 213. Figure 5 As shown, there are multiple blocks 212, and the multiple blocks 212 are evenly spaced around the circumference; Figure 4 As shown, the top side wall of the annular groove 112 is provided with a plurality of notches corresponding to the block 212 for the block 212 to pass through. The block 212 enters the annular groove 112 from the notches, and then the second main body structure 210 rotates relative to the first main body structure 110, driving the block 212 to stagger the notches, thereby realizing the connection between the first main body structure 110 and the second main body structure 210.

[0040] In the embodiment of the present invention, a limit block 113 is provided in the annular groove 112, and the limit block 113 is used to abut against the clamping block 212 to limit the maximum rotation angle of the first main body structure 110. Figure 4 As shown, the limit block 113 is arranged in the annular groove 112, and the limit block 113 is preferably arranged between two adjacent notches. By changing the position of the limit block 113, the maximum angle at which the first main body structure 110 can rotate relative to the second main body structure 210 can be changed. When the first main body structure 110 rotates to the position where the block 212 and the limit block 113 are at odds with each other, the first main body structure 110 will no longer be able to rotate relative to the second main body structure 210.

[0041] It should be understood that the relative rotation of the first main structure 110 and the second main structure 210 cannot directly disengage the upper drill rod 201 and the lower drill rod 101, but can only loosen the connection between the upper drill rod 201 and the lower drill rod 101. Then the upper clamping mechanism loosens the upper drill rod 201, and the lower clamping mechanism loosens the lower drill rod 101. The rock drilling rig connected to the upper drill rod 201 drives the upper drill rod 201 to rotate, and finally completes the complete disconnection of the upper drill rod 201 and the lower drill rod 101. The current common practice is to directly use the reverse rotation of the rock drill to disengage the upper drill rod 201 and the lower drill rod 101. However, because the upper drill rod 201 and the lower drill rod 101 will continue to move relative to each other during the drilling operation, the connection between the upper drill rod 201 and the lower drill rod 101 may be too tight and difficult to loosen, making it impossible for the rock drill to directly disengage the upper drill rod 201 and the lower drill rod 101. Therefore, manual operation is required to assist in the disengagement of the upper drill rod 201 and the lower drill rod 101. After the upper clamping mechanism and the lower clamping mechanism of this embodiment loosen the connection between the upper drill rod 201 and the lower drill rod 101, manual assistance can be greatly reduced to complete the disengagement of the upper drill rod 201 and the lower drill rod 101, thereby greatly improving the operation efficiency and reducing the labor cost and operation risk.

[0042] In the embodiment of the present invention, the lower clamping rod mechanism 100 further comprises two first clamping assemblies, which are relatively arranged at the two ends of the first main structure 110; the first clamping assemblies comprise first clamping blocks 120, which slide relative to each other to clamp or release the lower drill rod 101. Figure 2 、 Figure 3 As shown, the first clamping assembly further includes a first transition block 130 and a first telescopic cylinder 140. The first clamping block 120 is connected to the movable end of the first telescopic cylinder 140 via the first transition block 130, and the fixed end of the first telescopic cylinder 140 is detachably mounted on the first main structure 110. The two first telescopic cylinders 140 of the two first clamping assemblies drive the two first clamping blocks 120 to move toward each other to clamp the lower drill rod 101, and the two first telescopic cylinders 140 of the two first clamping assemblies drive the two first clamping blocks 120 to move away from each other to release the lower drill rod 101. The size of the first transition block 130 is larger than that of the first clamping block 120. The first clamping block 120 is connected to the first telescopic cylinder 140 via the first transition block 130, which facilitates the positioning of the first clamping block 120 to ensure that the first clamping block 120 can always clamp the lower drill rod 101.

[0043] Furthermore, the fixed end of the first telescopic cylinder 140 is preferably connected to the first main structure 110 by fasteners such as bolts. The first telescopic cylinder 140 is detachably connected to the first main structure 110, which facilitates the overall disassembly and maintenance of the first clamping assembly.

[0044] It is conceivable that the first transition block 130 may not be provided, and the first clamping block 120 may be directly connected to the movable end of the first telescopic cylinder 140. However, the first clamping block 120 and the first telescopic cylinder 140 may be connected through the first transition block 130. Since the first transition block 130 itself will not come into direct contact with the lower drill rod 101, the first transition block 130 is not prone to wear and dislocation, thereby effectively reducing the difficulty of assembling the first clamping block 120 and the first main structure 110, and at the same time, the accuracy of the position of the first clamping block 120 can be improved.

[0045] In the embodiment of the present invention, the first transition block 130 is provided with a first slot 131, the first clamping block 120 is installed in the first slot 131, and the first clamping block 120 and the first transition block 130 are connected by fasteners. Figure 2 、 Figure 3 As shown, the fastener is preferably a bolt, which passes through the side wall of the first clamping groove 131 and is connected to the first clamping block 120. The clamping groove is provided for the first clamping block 120 to be inserted, which can better wrap and support the first clamping block 120 and reduce the probability of misalignment when the first clamping block 120 abuts against the lower drill rod 101.

[0046] In the embodiment of the present invention, the first clamping block 120 includes a first clamping surface 121, the first clamping surface 121 is an arc-shaped surface, and the first clamping surface 121 is equipped with wear-resistant teeth 122. Figure 3 As shown, the first clamping surface 121 is configured as an arcuate surface to better conform to the outer surface of the lower drill rod 101. The wear-resistant teeth 122 are preferably made of an alloy material, and the first clamping surface 121 is provided with a mounting hole, in which the wear-resistant teeth 122 are mounted. The wear-resistant teeth 122 and the mounting hole are connected by an interference fit. The interference fit between the wear-resistant teeth 122 and the mounting hole can improve the stability of the connection between the two and also reduce the difficulty of installation.

[0047] In the embodiment of the present invention, first operating holes 115 penetrating the first main structure 110 are provided on both sides of the first main structure 110 in the width direction, and the first operating holes 115 are connected to the first through holes 114. Figure 3 As shown, the fasteners connecting the first transition block 130 and the first clamping block 120 are arranged on both sides of the width direction of the first transition block 130, so Figure 4 As shown, first operating holes 115 are provided on both sides of the first main structure 110 in the width direction and communicate with the first through hole 114 , so that the first clamping block 120 can be disassembled and replaced without disassembling the first telescopic cylinder 140 .

[0048] In the embodiment of the present utility model, referring to Figure 6As shown, the structure of the upper clamping rod mechanism 200 is basically the same as that of the lower clamping rod mechanism 100. The upper clamping rod mechanism 200 includes two second clamping assemblies, which are relatively arranged at the two ends of the second main structure 210. The second clamping assembly includes a second clamping block 220, a second transition block 230, and a second telescopic cylinder 240. The second clamping block 220 is connected to the movable end of the second telescopic cylinder 240 through the second transition block 230, and the fixed end of the second telescopic cylinder 240 is detachably mounted on the second main structure 210. The two second telescopic cylinders 240 of the two second clamping assemblies drive the two second clamping blocks 220 to move toward each other to clamp the upper drill rod 201, and the two second telescopic cylinders 240 of the two second clamping assemblies drive the two second clamping blocks 220 to move away from each other to release the lower drill rod 101. Similarly, the second transition block 230 is provided with a second slot 231, and the second clamping block 220 is installed in the second slot 231. The second clamping block 220 and the second transition block 230 are connected by fasteners. The second clamping block 220 includes a second clamping surface 221, which is an arcuate surface and is equipped with wear-resistant teeth 122. Second operating holes 214 are provided on both sides of the second main structure 210 in the width direction and penetrate the second main structure 210. The second operating holes 214 are connected to the second through holes 213.

[0049] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0050] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A drill rod disassembly structure, characterized in that: include: A lower clamping rod mechanism is clamped to the lower drill rod; the lower clamping rod mechanism includes a first main body structure, and the first main body structure is provided with a first mounting pin; An upper clamping rod mechanism, clamped to the upper drill rod; the upper clamping rod mechanism includes a second main body structure, and the second main body structure is provided with a second mounting pin; The telescopic mechanism has a first end in the length direction hinged to the first mounting pin, and a second end in the length direction hinged to the second mounting pin; the movement of the telescopic mechanism can drive the upper clamping rod mechanism to rotate relative to the lower clamping rod mechanism, thereby loosening the connection between the upper drill rod and the lower drill rod.

2. The drill rod disassembly structure according to claim 1, characterized in that: The first main body structure is provided with an annular groove, and the second main body structure is provided with a clamping block, which can be embedded in the annular groove to connect the first main body structure and the second main body structure; when the upper clamping rod mechanism rotates relative to the lower clamping rod mechanism, the clamping block rotates along the annular groove.

3. The drill rod disassembly structure according to claim 2, characterized in that: The first main body structure is provided with a first through hole for the lower drill rod to pass through, and the annular groove is provided on the outer periphery of the first through hole and on the upper part of the first main body structure; The second main body structure is provided with a second through hole for the upper drill rod to pass through. The clamping block is arranged at the lower part of the second main body structure, and the clamping block extends in the radial direction of the second through hole.

4. The drill rod disassembly structure according to claim 2, characterized in that: A limit block is provided in the annular groove, and the limit block is used to abut against the clamping block to limit the maximum rotation angle of the first main body structure.

5. The drill rod disassembly structure according to claim 1, characterized in that: The lower clamping rod mechanism also includes two first clamping assemblies, which are relatively arranged at the two ends of the first main structure; the first clamping assembly includes a first clamping block, and the first clamping blocks of the two first clamping assemblies slide relative to each other to clamp or loosen the lower drill rod.

6. The drill rod disassembly structure according to claim 5, characterized in that: The first clamping assembly also includes a first transition block and a first telescopic cylinder. The first clamping block is connected to the movable end of the first telescopic cylinder through the first transition block, and the fixed end of the first telescopic cylinder is detachably mounted on the first main structure.

7. The drill rod disassembly structure according to claim 6, characterized in that: The first transition block is provided with a first slot, the first clamping block is installed in the first slot, and the first clamping block is connected to the first transition block via a fastener.

8. The drill rod disassembly structure according to claim 6, characterized in that: The first clamping block includes a first clamping surface, which is an arc-shaped surface and is equipped with wear-resistant teeth.

9. The drill rod disassembly structure according to claim 8, characterized in that: The first clamping surface is provided with a mounting hole, the wear-resistant tooth is mounted in the mounting hole, and the wear-resistant tooth and the mounting hole are connected by interference fit.

10. The drill rod disassembly structure according to claim 3, characterized in that: First operating holes penetrating the first main structure are provided on both sides of the first main structure in a width direction, and the first operating holes are communicated with the first through hole.

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