A lifting device for heavy drilling tools

Abstract

The present invention relates to the technical field of drilling tool hoisting, and provides a lifting device for heavy drilling tools, including a hoisting tool body, a crane connecting piece and a hoisting object connecting piece; the hoisting tool body includes a cylinder, the upper end of the cylinder is connected to a horizontal plate, and two oppositely arranged vertical plates are installed on the horizontal plate; the crane connecting piece includes two pins; the two pins are horizontally inserted between the two vertical plates, and are connected with the hook head of a gantry crane; the hoisting object connecting piece includes a hanging plate; the hanging plate is installed at the lower end of the cylinder, and the opening of the hanging plate is downward; the opening is connected with the interface on the drilling tool. The advantages of the present invention are: not only is it simple and convenient to operate, but it can also effectively avoid various problems caused by the use of traditional steel wire ropes, meet the needs of construction operations, that is, improve the safety of hoisting, save operation time, and reduce the labor intensity of operations.

Description

Technical Field

[0001] The invention relates to the technical field of drilling tool hoisting, in particular to a hoisting device for heavy drilling tools. Background Art

[0002] With the rapid development of my country's manufacturing technology, the lifting capacity of large shaft drilling rigs and gantry cranes in mines has been greatly improved, and the weight of drilling tools has also increased accordingly.

[0003] The current assembly weight of drilling tools can reach 400 tons. After a certain period of use, drilling tools need to be taken out of the ground for maintenance. This raises a question: should the drilling tools be disassembled and hoisted piece by piece for maintenance, or hoisted as a whole for maintenance? If the drilling tools are disassembled and hoisted piece by piece for maintenance, it will take a long time, which will greatly affect the operation efficiency. Although the overall hoisting and maintenance method of drilling tools can save time for disassembling components and transporting them one by one, there is still a technical difficulty when the lifting capacity of the gantry crane meets the overall lifting conditions, that is, how to reliably connect the drilling tools to the hook of the gantry crane.

[0004] Regarding the connection between the drilling tool and the gantry crane hook, if the conventional wire rope binding and suspension method is adopted, a very thick wire rope is required, and many strands are also required. Although this can achieve lifting, the operation is labor-intensive and the suspension distance is also very long, which occupies the effective lifting height of the gantry crane.

[0005] Therefore, it is urgent to design a special lifting device for heavy drilling tools to meet the needs of today's construction operations. Summary of the invention

[0006] The technical problem to be solved by the present invention is to provide a lifting device for heavy drilling tools. The use of the lifting device for lifting heavy drilling tools can effectively avoid the problems of high labor intensity, long hanging distance and occupation of the effective lifting height of the gantry crane caused by the traditional wire rope lifting method.

[0007] The present invention adopts the following technical solutions to solve the above technical problems:

[0008] A lifting device for heavy drilling tools, comprising:

[0009] The sling body comprises a cylinder, the upper end of which is connected to a horizontal plate, and two vertical plates opposite to each other are mounted on the horizontal plate;

[0010] A crane connecting piece, the crane connecting piece comprises two pins; the two pins are horizontally inserted between the two vertical plates and are connected with the hook head of the gantry crane;

[0011] A hanging object connecting piece; the hanging object connecting piece includes a hanging plate; the hanging plate is installed at the lower end of the cylinder, and the opening of the hanging plate faces downward; the opening is engaged with the interface on the drilling tool.

[0012] The device of the present invention is specially used for lifting drilling tools of large vertical shaft drilling rigs. When in use, the cylinder, the horizontal plate and the vertical plate first form a lifting device body with certain rigidity and strength. Then, the lifting device is reliably connected to the hook head of the crane through two pin shafts, and then the lifting device is connected to the lifting object through the lifting plate.

[0013] As one of the preferred embodiments of the present invention, two pin assembly holes are respectively formed on the two vertical plates of the horizontal plate; the two pins are horizontally inserted between the two vertical plates through the pin assembly holes.

[0014] As one of the preferred embodiments of the present invention, a guide tray is disposed on the outer wall of each vertical plate; the guide tray is disposed at the opening of the pin assembly hole and is used to lift the pin upward when the pin is inserted or pulled out.

[0015] As one of the preferred embodiments of the present invention, a group of clamping plate assemblies are also respectively provided on the outer wall of each vertical plate; the clamping plate assembly includes a clamping plate and a bolt; the clamping plate is clamped with the pin shaft and is fixed to the vertical plate by the bolt to prevent the pin shaft from slipping.

[0016] As one of the preferred embodiments of the present invention, an annular groove is formed on the outer surface of the pin along its circumference; the pin is engaged with the clamping plate through the annular groove.

[0017] As one of the preferred embodiments of the present invention, the gantry crane hook head is specifically a "mountain"-shaped hook head; when the crane connecting part is installed in place, the "mountain"-shaped hook head passes upward from between the two pin shafts, and the two inner hook surfaces of the "mountain"-shaped hook head are respectively connected to the lower bottom surfaces of the two pin shafts.

[0018] As one of the preferred embodiments of the present invention, the upper interface of the drill tool is specifically an interface with a drill tool clamping tooth on the top; when the upper interface of the drill tool is inserted into the opening of the hanging plate, the upper interface of the drill tool realizes clamping and limiting through the cooperation between the drill tool clamping tooth and the hanging plate clamping tooth on the hanging plate.

[0019] As one of the preferred embodiments of the present invention, a circle of the hanging plate teeth extending inwardly is arranged at the bottom opening of the hanging plate along its circumference, and a first gap is left between each of the hanging plate teeth arranged in a circle; a circle of the drill tool teeth extending outwardly is arranged at the upper interface of the drill tool along its circumference, and a second gap is left between each of the drill tool teeth arranged in a circle; wherein the upper interface of the drill tool falls into the opening of the plate through the first gap, and the locking and limiting is achieved by the contact and cooperation between the hanging plate teeth and the drill tool teeth after rotation.

[0020] As one of the preferred embodiments of the present invention, the size and shape of the drill tool teeth correspond to the size and shape of the first gap, and the size and shape of the second gap correspond to the size and shape of the hanging plate teeth.

[0021] As one of the preferred embodiments of the present invention, a limit plate assembly is also provided on the hanging tray; the limit plate assembly includes a limit assembly hole that penetrates longitudinally downward from the upper end of the hanging tray and a limit plate inserted therein; a handle is provided on the top of the limit plate, and the bottom end of the limit plate enters downward into the opening of the hanging tray through the limit assembly hole, and is plugged and matched with a positioning hole provided at a corresponding position of the interface on the drilling tool; at the same time, a latch port is also provided on the hanging tray, and the latch port is connected to the limit assembly hole, and a latch is provided therein; the latch is used to fix the limit plate. Here, the function of the limit plate assembly is to limit and fix the hanging tray and the drilling tool to prevent the hanging tray and the drilling tool from rotating relative to each other.

[0022] As one of the preferred embodiments of the present invention, the outer walls of the two vertical plates are respectively provided with outer ribs, and an inner rib connecting the two vertical plates is provided between the two vertical plates. Here, the outer ribs and the inner ribs strengthen the entire sling.

[0023] The advantages of the present invention compared to the prior art are:

[0024] (1) When the present invention is used, two pins are used to connect the "mountain"-shaped hook head of the gantry crane with the lifting device, and a matching special lifting plate is used to connect the heavy drilling tool of the lifting object with the lifting device in a rotating and clamping manner. The operation is not only simple and convenient, but also can effectively avoid the problems of high labor intensity, long hanging distance, and occupation of the effective lifting height of the gantry crane caused by the use of traditional steel wire ropes, meet the construction operation requirements, that is, improve the safety of lifting, save operation time, and reduce the labor intensity of the operation;

[0025] (2) The carrier of the device of the present invention is a steel structure, which has a compact structure, high strength, safety and reliability;

[0026] (3) The pin of the present invention is fixed to the vertical plate by the clamping plate assembly in the working state, which can effectively prevent the pin from slipping;

[0027] (4) The present invention also provides a group of pin trays on the outer wall of each vertical plate, so that when the pin is pulled out, there is no need to manually lift the pin, which reduces labor intensity and improves safety;

[0028] (5) The hoisting plate structure of the present invention is designed to match the lifting interface of the drilling tool; when hanging, the lifting tool can be reliably connected to the interface on the drilling tool by simply dropping the hoisting plate into place and rotating it to a certain angle;

[0029] (6) After the lifting platform is connected to the interface on the drilling tool, the lifting tool and the drilling tool can be fixed by the limit plate assembly on the lifting platform, further preventing them from rotating, thereby achieving safe lifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of the lifting device for heavy drilling tools in Example 1;

[0031] Figure 2 yes Figure 1 Schematic diagram of AA cross-section;

[0032] Figure 3 is a schematic structural diagram of the gantry crane hook in Example 1;

[0033] Figure 4 is a front view cross-sectional structural diagram of the hanging plate in Example 1;

[0034] Figure 5 is a top view of a partial cutaway view of the hanging plate in Example 1;

[0035] Figure 6 is a front view cross-sectional structural diagram of the upper interface of the drilling tool in Example 1;

[0036] Figure 7 is a top view of the structure of the interface on the drilling tool in Example 1;

[0037] Figure 8 It is a top view of the cross-section of the hanging plate and the upper interface of the drilling tool in the embodiment 1 before the rotation of the mating state (the arrow in the figure indicates the direction of rotation to be rotated);

[0038] Fig. 9 is a top view of the cross-section of the rotating mating state of the hanging plate and the upper interface of the drilling tool in Example 1;

[0039] Fig.10 It is a front view cross-section diagram of the joint state between the hanging plate and the interface on the drilling tool after rotation.

[0040] In the figure: 1 is the main body of the sling, 11 is the cylinder, 12 is the horizontal plate, 13 is the vertical plate, 131 is the outer rib plate, 132 is the inner rib plate, 14 is the guide tray, 15 is the clamping plate assembly, 151 is the clamping plate, 152 is the bolt, 2 is the crane connecting piece, 21 is the pin shaft, 211 is the annular clamping groove, 3 is the hanging object connecting piece, 31 is the hanging plate, 311 is the opening, 312 is the hanging plate clamping tooth, 313 is the first gap notch, 32 is the limit plate assembly, 321 is the limit assembly hole, 322 is the limit plate, 323 is the handle, 324 is the pin hole, 4 is the gantry crane hook head, 41 is the "mountain" type hook head, 5 is the upper interface of the drilling tool, 51 is the drilling tool clamping tooth, 52 is the second gap notch, and 53 is the positioning hole. DETAILED DESCRIPTION

[0041] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0042] Example 1

[0043] like Figure 1-10 As shown, a heavy-duty drilling tool lifting device of this embodiment is specially used for lifting drilling tools of large vertical shaft drilling rigs, and includes a lifting tool body 1, a crane connector 2 and a lifting object connector 3. The lifting tool body 1 includes a cylinder 11, and a horizontal plate 12 is connected to the upper end of the cylinder 11, and two opposite vertical plates 13 are installed on the horizontal plate 12. The crane connector 2 includes two pins 21; the two pins 21 are horizontally inserted between the two vertical plates 13, and are engaged with the gantry crane hook 4. The lifting object connector 3 includes a lifting plate 31; the lifting plate 31 is installed at the lower end of the cylinder 11, and the opening 311 of the lifting plate 31 is downward; the opening 311 is engaged with the upper interface 5 of the drilling tool.

[0044] When the device of this embodiment is used, the cylinder 11, the horizontal plate 12 and the vertical plate 13 first form a sling body 1 with certain rigidity and strength, then the sling is reliably connected to the gantry crane hook 4 of the crane through two pins 21, and then the sling is connected to the interface 5 on the drilling tool through the hanging plate 31. The whole process is not only simple and convenient to operate, but also can effectively avoid the problems of high labor intensity, long hanging distance and occupation of the effective lifting height of the gantry crane caused by the use of traditional steel wire ropes, meet the construction operation requirements, that is, improve the safety of lifting, save operation time, and reduce the labor intensity of the operation.

[0045] Specifically, in this embodiment, two pin assembly holes are respectively opened on the two vertical plates 13 on the horizontal plate 12; and the two pins 21 are horizontally inserted between the two vertical plates 13 through the pin assembly holes.

[0046] Also, see Figure 1 and Figure 2 , a guide tray 14 and a group of card assembly 15 are respectively provided on the outer wall of each vertical plate 13. Among them, the guide tray 14 is opened at the opening of the pin assembly hole, and is used to lift the pin 21 upward when the pin 21 is inserted or pulled out. The card assembly 15 includes a card plate 151 and a bolt 152; the card plate 151 is engaged with the pin 21 and is fixed to the vertical plate 13 by the bolt 152 to prevent the pin 21 from slipping. Furthermore, the outer surface of the pin 21 is formed with an annular card groove 211 along its circumference, and the pin 21 is engaged with the card plate 151 through the annular card groove 211.

[0047] Specifically, see Figure 3In this embodiment, the gantry crane hook 4 is specifically a "mountain" type hook 41. When the crane connecting member 2 is installed in place, the "mountain" type hook 41 passes upward from between the two pin shafts 21, and the two inner hook surfaces of the "mountain" type hook 41 are respectively connected to the lower bottom surfaces of the two pin shafts 21.

[0048] Specifically, see Figure 6 and Figure 7 In this embodiment, the upper interface 5 of the drilling tool is specifically an interface with a drilling tool clamping tooth 51 at the top. When the upper interface 5 of the drilling tool is inserted into the opening 311 of the hanging plate 31, the upper interface 5 of the drilling tool realizes preliminary clamping and limiting through the cooperation between the drilling tool clamping tooth 51 and the hanging plate clamping tooth 312 on the hanging plate 31.

[0049] For further information, see Figure 4 , Figure 5 and Figure 7 , a circle of hanging plate teeth 312 extending inwards is arranged at the bottom opening 311 of the hanging plate 31 along its circumference, and a first gap 313 is left between each hanging plate teeth 312 arranged in a circle. The drilling tool upper interface 5 is provided with a circle of drilling tool teeth 51 extending outwards along its circumference, and a second gap 52 is left between each drilling tool teeth 51 arranged in a circle. The size and shape of the drilling tool teeth 51 correspond to the size and shape of the first gap 313, and the size and shape of the second gap 52 correspond to the size and shape of the hanging plate teeth 312. Among them, the drilling tool upper interface 5 first falls into the opening 311 of the hanging plate 31 through the first gap 313 (the matching state of the two at this time is the matching state before rotation, as shown in FIG. Figure 8 Then, the hanging plate 31 is rotated so that the hanging plate teeth 312 are just below the drilling tool teeth 51, so that the drilling tool teeth 51 can overlap the hanging plate teeth 312 (the matching state of the two at this time is the matching state after rotation, as shown in FIG. Fig. 9 , 10 As shown), the initial clamping limit of the two is achieved.

[0050] Also, see Figure 1 and Figure 2 In this embodiment, in order to further fix the initially clamped and limited hanging plate 31 and the upper interface 5 of the drilling tool to prevent the hanging plate 31 and the drilling tool from rotating relative to each other, a limit plate assembly 32 is also provided on the hanging plate 31. Specifically, the limit plate assembly 32 includes a limit assembly hole 321 that penetrates longitudinally downward from the upper end of the hanging plate 31 and a limit plate 322 inserted therein; a handle 323 is provided at the top of the limit plate 322, and the bottom end of the limit plate 322 passes through the limit assembly hole 321 and enters downward into the opening 311 of the hanging plate 31, and is aligned with the positioning hole 53 (such as the positioning hole 53) opened at the corresponding position of the upper interface 5 of the drilling tool. Figure 6at the same time, the hanging plate 31 is also provided with a latch opening 324, the latch opening 324 is connected with the limit assembly hole 321, and a latch is provided therein; the latch is used to fix the limit plate 322.

[0051] In addition, in order to strengthen the two entire hangers, outer walls of the two vertical plates 13 are respectively provided with outer ribs 131 , and inner ribs 132 connecting the two vertical plates 13 are provided between the two vertical plates 13 .

[0052] Directions:

[0053] (1) The sling is connected to the "mountain" type hook 41 of the gantry crane through two pin shafts 21;

[0054] (2) Operate the hanging plate 31 to make it fall into place. At this time, the upper interface 5 of the drilling tool falls into the opening 311 of the hanging plate 31 through the first gap notch 313 of the hanging plate 31;

[0055] (3) Rotate the hanging plate 31 to a certain angle so that the rotating hanging plate teeth 312 are exactly located below the drilling tool teeth 51, so that the drilling tool teeth 51 can overlap the hanging plate teeth 312, and the two can be initially engaged and limited;

[0056] (4) After the lifting platform 31 is connected to the upper interface 5 of the drilling tool, the lifting tool and the upper interface 5 of the drilling tool can be fixed by the limit plate assembly 32 on the lifting platform 31, so that they cannot rotate, thereby achieving safe lifting.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting device for heavy drilling tools, characterized in that: include: The sling body comprises a cylinder, the upper end of which is connected to a horizontal plate, and two vertical plates opposite to each other are mounted on the horizontal plate; A crane connecting piece, the crane connecting piece comprises two pins; the two pins are horizontally inserted between the two vertical plates and are connected with the hook head of the gantry crane; A hanging object connecting piece; the hanging object connecting piece comprises a hanging plate; the hanging plate is installed at the lower end of the cylinder, and the opening of the hanging plate faces downward; the opening is engaged with the interface on the drilling tool; Wherein, two pin assembly holes are respectively provided on the two vertical plates of the horizontal plate; the two pins are horizontally inserted between the two vertical plates through the pin assembly holes; a guide tray is respectively provided on the outer wall of each vertical plate; the guide tray is provided at the opening of the pin assembly hole, and is used to support the pin upward; a group of clamping plate components are also respectively provided on the outer wall of each vertical plate; the clamping plate components include clamping plates and bolts, the clamping plates are clamped with the pins, and are fixed to the vertical plates through the bolts; The gantry crane hook is specifically a "mountain" type hook; when the crane connection piece is installed in place, the "mountain" type hook passes upward from between the two pin shafts, and the two inner hook surfaces of the "mountain" type hook are respectively connected to the lower bottom surfaces of the two pin shafts; The upper interface of the drill tool is specifically an interface with a drill tool clamping tooth at the top; when the upper interface of the drill tool is inserted into the opening of the hanging plate, the upper interface of the drill tool realizes clamping and limiting through the cooperation of the drill tool clamping tooth and the hanging plate clamping tooth on the hanging plate; a circle of the hanging plate clamping teeth extending inwardly is arranged at the bottom opening of the hanging plate along its circumference, and a first gap is left between each of the hanging plate clamping teeth arranged in a circle; the upper interface of the drill tool is provided with a circle of the drill tool clamping teeth extending outwardly along its circumference, and a second gap is left between each of the drill tool clamping teeth arranged in a circle; wherein, the upper interface of the drill tool falls into the opening of the hanging plate through the first gap, and realizes clamping and limiting through the contact and cooperation between the rotating hanging plate clamping teeth and the drill tool clamping teeth.

2. The heavy-duty drilling tool lifting device according to claim 1, characterized in that: An annular groove is formed on the outer surface of the pin shaft along its circumference; the pin shaft is engaged with the clamping plate through the annular groove.

3. The heavy-duty drilling tool lifting device according to claim 1, characterized in that: A limit plate assembly is also provided on the hanging plate; the limit plate assembly includes a limit assembly hole which penetrates longitudinally downward from the upper end of the hanging plate and a limit plate inserted therein; a handle is provided on the top of the limit plate, and the bottom end of the limit plate passes through the limit assembly hole downward into the opening of the hanging plate, and is plugged and matched with a positioning hole opened at a corresponding position of the interface on the drilling tool; at the same time, a pin hole is also provided on the hanging plate, the pin hole is communicated with the limit assembly hole, and a pin is provided therein; the pin is used to fix the limit plate.

4. The heavy-duty drilling tool lifting device according to any one of claims 1 to 3, characterized in that: The outer walls of the two vertical plates are also respectively provided with outer ribs, and an inner rib connecting the two vertical plates is provided between the two vertical plates.

Images