Drill rod lifting frame

Abstract

The utility model relates to the technical field of lifting frames, one embodiment of the utility model provides a drill rod lifting frame which comprises a supporting frame and a turnover frame, the turnover frame is used for loading a drill rod, the turnover frame is hinged to the supporting frame, and the turnover frame is used for erecting the drill rod after being turned over by means of pushing force or pulling force of a turnover driving mechanism. By means of the technical scheme, the technical problems that in the related technology, when the drill rod is erected through an overturning driving mechanism, an operator needs to hold the drill rod manually, time and labor are wasted, the labor intensity is large, and the working efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] Embodiments of the present disclosure relate to the technical field of lifting frame, in particular, to a drill rod lifting frame. BACKGROUND

[0002] A drilling machine is a common device for pile foundation hole forming operation. A drill rod needs to be used when drilling. In order to meet the requirement of hole forming depth, a plurality of drill rods need to be connected together. At present, when installing the drill rod, a turnover driving mechanism is generally used to drive the horizontally placed drill rod to turn over and stand up. However, the operator needs to manually hold the drill rod during the operation process, which is time-consuming and laborious, has high labor intensity and low work efficiency. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the above defects, embodiments of the present disclosure provide a drill rod lifting frame, which solves the technical problem that in the related art, when the drill rod is stood up by using the turnover driving mechanism, the operator needs to manually hold the drill rod, which is time-consuming and laborious, has high labor intensity and low work efficiency.

[0004] According to one aspect, at least one embodiment of the present disclosure provides a drill rod lifting frame, comprising:

[0005] a support frame,

[0006] a turnover frame, the turnover frame is used for loading a drill rod, the turnover frame is hinged with the support frame, and the turnover frame is used for standing up the drill rod after being turned over by the pushing force or pulling force of a turnover driving mechanism.

[0007] For example, in the drill rod lifting frame provided by at least one embodiment of the present disclosure, the drill rod lifting frame further comprises arc-shaped clamping pieces, two groups of the arc-shaped clamping pieces are arranged along the radial direction of the drill rod, and a drill rod clamping cavity is left between the two groups of the arc-shaped clamping pieces. One end of the arc-shaped clamping piece is rotationally connected with the turnover frame, and the axial direction of the rotation shaft is the same as the axial direction of the drill rod. The other end of the arc-shaped clamping piece is turned over outward by the pushing force of the drill rod, so as to make the drill rod enter or leave the drill rod clamping cavity.

[0008] For example, in the drill rod lifting frame provided by at least one embodiment of the present disclosure, the drill rod lifting frame further comprises:

[0009] a positioning sleeve, the positioning sleeve is arranged on the turnover frame, the length direction of the positioning sleeve is the same as the length direction of the drill rod, the number of the positioning sleeves is two, and two groups of the arc-shaped clamping pieces are rotationally connected with the two positioning sleeves one by one.

[0010] a connecting seat, one end of the connecting seat is connected with one of the positioning sleeves, and the other end of the connecting seat has a slot.

[0011] A connecting block, one end of the connecting block being connected with another positioning sleeve, the other end of the connecting block being inserted into the slot and forming a detachable connection.

[0012] For example, in the drilling rod lifting frame provided by at least one embodiment of the present disclosure, the side wall of the slot has a positioning groove, the inside of the connecting block has a mounting cavity, the side wall of the connecting block has an oil inlet and outlet channel for connecting the mounting cavity with the outside, the side wall of the connecting block has a bushing corresponding to the positioning groove, and the drilling rod lifting frame further comprises:

[0013] A sliding block, the sliding block being slidingly arranged in the mounting cavity and located between the oil inlet and outlet channel and the bushing, the sliding direction of the sliding block being the same as the axial direction of the slot, and the side wall of the sliding block having a buffer groove;

[0014] A push-pull rod, one end of the push-pull rod being hingedly connected with the sliding block, and the other end of the push-pull rod being located in the buffer groove;

[0015] An insertion rod, one end of the insertion rod being hingedly connected with the other end of the push-pull rod, and the other end of the insertion rod being inserted into the bushing and then being inserted into the positioning groove, the sliding block being slid away from the oil inlet and outlet channel by means of oil pressure, the push-pull rod driving the insertion rod to move towards the inside of the connecting block, and the insertion rod being separated from the positioning groove;

[0016] An elastic reset member, the elastic reset member being arranged in the mounting cavity and located on the side of the sliding block away from the oil inlet and outlet channel, and the elastic reset member being used for elastically pushing the sliding block towards the oil inlet and outlet channel, so that the outer end of the insertion rod is inserted into the positioning groove.

[0017] For example, in the drilling rod lifting frame provided by at least one embodiment of the present disclosure, the inner wall of the one end of the connecting block towards the connecting seat has a first guide inclined surface, and the one end of the first guide inclined surface away from the oil inlet and outlet channel is inclined outwards.

[0018] For example, in the drilling rod lifting frame provided by at least one embodiment of the present disclosure, the outer wall of the one end of the connecting block away from the oil inlet and outlet channel has a second guide inclined surface, and the one end of the second guide inclined surface away from the oil inlet and outlet channel is inclined inwards.

[0019] For example, in the drilling rod lifting frame provided by at least one embodiment of the present disclosure, the drilling rod lifting frame further comprises a quick connector, the quick connector being arranged on the connecting block and being in communication with the outer end of the oil inlet and outlet channel.

[0020] For example, in the drilling rod lifting frame provided by at least one embodiment of the present disclosure, the arc-shaped clamping member comprises:

[0021] a plurality of first arc-shaped rods, one end of each of the first arc-shaped rods being hingedly connected to the positioning sleeve;

[0022] a plurality of reinforcing rods, the other end of each of the first arc-shaped rods on the same positioning sleeve being connected to the same reinforcing rod;

[0023] a plurality of second arc-shaped rods, one end of each of the second arc-shaped rods being connected to the reinforcing rod, and the other end of each of the second arc-shaped rods being bent and extended to the inside of the reinforcing rod.

[0024] For example, in the drilling rod lifting frame provided by at least one of the embodiments of the present disclosure, the arc-shaped clamping member further comprises a connecting rod, the connecting rod is inserted into the positioning sleeve and forms a rotating fit, the first arc-shaped rod is connected to the connecting rod, and the connection is located outside the two ends of the positioning sleeve.

[0025] For example, in the drilling rod lifting frame provided by at least one of the embodiments of the present disclosure, at least two second arc-shaped rods are connected to each of the reinforcing rods, and all the second arc-shaped rods on the same reinforcing rod are arranged along the length direction of the reinforcing rod.

[0026] The embodiments of the present disclosure have the following beneficial effects: when in use, the support frame is placed on one side of the wellhead, and the end of the turnover frame hingedly connected to the support frame is close to the wellhead, and the support frame can provide stable basic support for the turnover frame. First, the drilling rod is locked on the turnover frame, and then the turnover driving mechanism is used to make the end of the turnover frame away from the wellhead turn upward and the other end turn downward, so that the turnover frame turns around the hinged shaft of the turnover frame and the support frame, and the drilling rod moves together with the turnover frame until the drilling rod is erected, the turnover driving mechanism stops working, and then the drilling rod is separated from the turnover frame, the two drilling rods adjacent to each other are connected together, and the turnover frame is reversely rotated to the initial position.

[0027] The operator does not need to manually hold the drilling rod, which saves time and effort and can reduce labor intensity. After using the lifting frame, the turnover driving mechanism can quickly and accurately erect the turnover frame and the drilling rod, so that the connection operation can be quickly expanded, the installation time of the drilling rod can be greatly shortened, and the work efficiency can be significantly improved. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed in the description of the embodiments of the present disclosure will be briefly introduced. Obviously, the drawings in the following description are only some example embodiments of the present disclosure. Those skilled in the art can obtain other drawings according to the content of the example embodiments of the present disclosure and these drawings without creating any creative labor.

[0029] Figure 1 A perspective view of one embodiment of the present disclosure;

[0030] Figure 2 A front view of one embodiment of the present disclosure;

[0031] Figure 3 A top view of one embodiment of the present disclosure;

[0032] Figure 4 A structural schematic diagram of the arc-shaped clamping piece clamping the drill pipe in one embodiment of the present disclosure;

[0033] Figure 5 A structural schematic diagram of the connection of two positioning sleeves in one embodiment of the present disclosure;

[0034] Figure 6 A structural schematic diagram of the arc-shaped clamping piece in one embodiment of the present disclosure;

[0035] Figure 7 A structural schematic diagram of the arc-shaped clamping piece in another direction in one embodiment of the present disclosure.

[0036] In the figure: 1, support frame, 2, turnover frame, 3, arc-shaped clamping piece, 3-1, first arc-shaped rod body, 3-2, reinforcing rod, 3-3, second arc-shaped rod body, 3-4, connecting rod, 4, positioning sleeve, 5, connecting seat, 6, connecting block, 7, insertion slot, 8, positioning slot, 9, installation cavity, 10, oil inlet and outlet channel, 11, insertion hole, 12, sliding block, 13, push-pull rod, 14, insertion rod, 15, elastic reset piece, 16, buffer groove, 17, first guide inclined surface, 18, second guide inclined surface, 19, quick coupler, 20, drill pipe. DETAILED DESCRIPTION

[0037] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, but not to limit the present disclosure.

[0038] In order to make the drawing simple, only the parts related to the disclosure are shown in each figure, which does not represent the actual structure of the product. In addition, in order to make the drawing simple and easy to understand, in some figures, only one of the parts with the same structure or function is shown, or only one of them is marked. In this paper, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0039] In this document, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection" should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances.

[0040] In the present disclosure, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0041] In the description of the present embodiment, the terms "up", "down", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present disclosure.

[0042] In addition, in the description of the present application, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] As Figures 1-4 As shown in the figure, it shows a drill rod lifting frame in an embodiment of the present disclosure, which comprises a support frame 1 and a turnover frame 2, the turnover frame 2 is used to load a drill rod 20, the turnover frame 2 is hinged with the support frame 1, and the turnover frame 2 is used to stand up the drill rod 20 after being turned over by the pushing force or pulling force of a turnover driving mechanism.

[0044] Taking the left end of the turnover frame 2 being hinged to the support frame 1 as an example, in use, the support frame 1 is placed at the well mouth side, and the end (i.e. the left end) of the turnover frame 2 being hinged to the support frame 1 is close to the well mouth, and the support frame 1 can provide stable basic support for the turnover frame 2. First, the drill pipe 20 is locked on the turnover frame 2, and the length direction of the drill pipe 20 is arranged along the left-right direction, and then the turnover driving mechanism is used to make the end (i.e. the right end) of the turnover frame 2 away from the well mouth to turn upward, and the other end (i.e. the left end) to turn downward, so that the turnover frame 2 turns around the hinge shaft of the turnover frame 2 and the support frame 1, and the drill pipe 20 moves together with the turnover frame 2 until the drill pipe 20 is erected, and the turnover driving mechanism stops working, and then the drill pipe 20 is separated from the turnover frame 2, the two drill pipes 20 adjacent to each other are connected together, and the turnover frame 2 is reversely rotated to return to the initial position.

[0045] The operator does not need to manually hold the drill pipe, which saves time and effort and can reduce labor intensity. After using the lifting frame, the turnover driving mechanism can quickly and accurately erect the turnover frame 2 and the drill pipe 20, so that the connection operation can be quickly expanded, and the installation time of the drill pipe 20 can be greatly shortened, so that the work efficiency is significantly improved. In order to make the connection between the drill pipe 20 and the turnover frame 2 more firm and reliable, the turnover frame 2 has a receiving groove, and the drill pipe 20 is used to be locked in the receiving groove.

[0046] In some examples, the drill pipe lifting frame further comprises arc-shaped clamping pieces 3, the arc-shaped clamping pieces 3 have two groups, the two groups of arc-shaped clamping pieces 3 are arranged along the radial direction of the drill pipe 20, and a drill pipe clamping cavity is left between the two groups of arc-shaped clamping pieces 3, one end of the arc-shaped clamping piece 3 is relatively rotatably connected with the turnover frame 2, and the axis direction of the rotating shaft is the same as the axis direction of the drill pipe 20, and the other end of the arc-shaped clamping piece 3 is outwardly turned by the pushing force of the drill pipe 20, and is used to make the drill pipe 20 enter or leave the drill pipe clamping cavity.

[0047] As shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the drill pipe clamping cavity is formed between the front and rear arc-shaped clamping pieces 3. Taking the case that the turnover frame 2 is horizontally placed as an example, at this time, the lower end of the arc-shaped clamping piece 3 is relatively rotatably connected with the turnover frame 2, and the axis direction of the rotating shaft is arranged along the front and rear directions, so that the upper end of the front arc-shaped clamping piece 3 can be turned forward, the upper end of the rear arc-shaped clamping piece 3 can be turned backward, and a gap is left between the upper ends of the front and rear arc-shaped clamping pieces 3.

[0048] When the drill rod 20 needs to be inserted or removed, the upper end of the arc-shaped clamping member 3 flips outward with the thrust of the drill rod 20 itself, and the two arc-shaped clamping members 3 move away from each other, thereby opening the drill rod clamping cavity to facilitate the insertion and removal of the drill rod 20. After the drill rod 20 is inserted or removed, the thrust of the drill rod 20 on the arc-shaped clamping member 3 disappears, and the arc-shaped clamping member 3 automatically returns to its original position. The reset of the arc-shaped clamping member 3 can be achieved by a torsion spring or other elastic element set between the arc-shaped clamping member 3 and the flipping frame 2. The design of the arc-shaped clamping member 3 enables the rapid loading and unloading of the drill rod 20, improving work efficiency. At the same time, the two sets of arc-shaped clamping members 3 can reliably clamp the drill rod 20, ensuring that the drill rod 20 is stably locked on the flipping frame 2, preventing the drill rod 20 from shifting or falling during the flipping process, thus increasing operational safety. When the tilting frame 2 has a receiving groove, the arc-shaped clamping component 3 is located within the receiving groove. This design makes the structure of the drill pipe lifting frame more compact and reasonable, and can prevent the arc-shaped clamping component 3 from occupying too much space or affecting other operations when not in use. Furthermore, the receiving groove can position and protect the arc-shaped clamping component 3, which can extend the service life of the arc-shaped clamping component 3.

[0049] In some examples, a drill pipe lifting frame also includes a positioning sleeve 4, a connecting seat 5, and a connecting block 6. The positioning sleeve 4 is disposed on the tilting frame 2, and the length direction of the positioning sleeve 4 is the same as the length direction of the drill pipe 20. There are two positioning sleeves 4, and two sets of arc-shaped clamping members 3 are rotatably connected to the two positioning sleeves 4 in a one-to-one correspondence. One end of the connecting seat 5 is connected to one positioning sleeve 4, and the other end of the connecting seat 5 has a slot 7. One end of the connecting block 6 is connected to the other positioning sleeve 4, and the other end of the connecting block 6 is inserted into the slot 7 to form a detachable connection.

[0050] For example, such as Figure 4 , Figure 5 , Figure 6 and Figure 7 As shown, the positioning sleeve 4 is set on the flipping frame 2, and its length direction is the same as that of the drill rod 20. Two sets of arc-shaped clamping parts 3 are respectively set on one of the positioning sleeves 4. Through the detachable connection of the connecting seat 5 and the connecting block 6, it is easy to install, disassemble and maintain one of the positioning sleeves 4 and the arc-shaped clamping parts 3 when needed, while ensuring that the two sets of arc-shaped clamping parts 3 can reliably clamp the drill rod 20. The other positioning sleeve 4 and the arc-shaped clamping parts 3 on it are unaffected and can continue to be used.

[0051] In some examples, the side wall of the slot 7 has a positioning groove 8, the connecting block 6 has a mounting cavity 9 inside, the side wall of the connecting block 6 has an oil inlet and outlet channel 10 for communicating the mounting cavity 9 with the outside, the side wall of the connecting block 6 has a jack 11 at a position corresponding to the positioning groove 8, and the drill rod lifting frame further comprises a sliding block 12, a push-pull rod 13, a plug rod 14 and an elastic reset member 15. The sliding block 12 is slidingly arranged in the mounting cavity 9 and located between the oil inlet and outlet channel 10 and the jack 11, the sliding direction of the sliding block 12 is the same as the axial direction of the slot 7, and the side wall of the sliding block 12 has a buffer groove 16. The push-pull rod 13 is located in the buffer groove 16, one end of the push-pull rod 13 is hingedly connected to the sliding block 12, one end of the plug rod 14 is hingedly connected to the other end of the push-pull rod 13, and the other end of the plug rod 14 is inserted into the positioning groove 8 after passing through the jack 11. After the sliding block 12 slides away from the oil inlet and outlet channel 10 by means of oil pressure, the push-pull rod 13 drives the plug rod 14 to move towards the inside of the connecting block 6, so as to separate the plug rod 14 from the positioning groove 8. The elastic reset member 15 is arranged in the mounting cavity 9 and located on the side of the sliding block 12 away from the oil inlet and outlet channel 10, and the elastic reset member 15 is used for elastically pushing the sliding block 12 towards the oil inlet and outlet channel 10, so that the outer end of the plug rod 14 is inserted into the positioning groove 8.

[0052] For example, as shown in Figure 5 the positioning sleeve 4 in front and rear, the rear end of the connecting seat 5 has a slot 7, the sliding block 12 can slide forward and backward in the mounting cavity 9 of the connecting block 6, the oil inlet and outlet channel 10 is located at the rear end of the connecting block 6 and behind the sliding block 12, the oil inlet and outlet channel 10 communicates with the rear end of the mounting cavity 9, and the elastic reset member 15 is located between the front side wall of the mounting cavity 9 and the front of the sliding block 12.

[0053] As shown in Figure 5As shown, at this time, the outer end of the insertion rod 14 is inserted into the positioning groove 8 on the inner wall of the connecting seat 5. When it is necessary to disassemble the positioning sleeve 4, oil pressure is injected into the rear end of the mounting cavity 9 through the oil inlet / outlet channel 10. The oil pressure pushes the slider 12 forward, and the slider 12 drives the insertion rod 14 to move into the connecting block 6 through the push-pull rod 13, so that the insertion rod 14 is separated from the positioning groove 8, thereby realizing the separation of the connecting seat 5 and the connecting block 6. When the oil pressure is released, the elastic reset member 15 elastically pushes the slider 12 towards the oil inlet / outlet channel 10. The slider 12 drives the insertion rod 14 to move outward through the push-pull rod 13, so that the outer end of the insertion rod 14 is inserted into the positioning groove 8 again, realizing the fixed connection between the connecting seat 5 and the connecting block 6. This connection method can realize quick connection and disassembly between the two positioning sleeves 4, which is convenient and quick to operate, and can ensure the firmness of the connection. The setting of the elastic reset member 15 can ensure the stability of the connection when there is no oil pressure and prevent the two positioning sleeves 4 from accidentally separating during operation. The slider 12 has a sealing groove on its side wall. The sealing ring is fitted around the slider and is located inside the sealing groove, which can improve the sealing between the slider 12 and the connecting block 6.

[0054] In some examples, the inner wall of the connecting seat 5 facing the connecting block 6 has a first guide slope 17, which is inclined outward at the end near the oil inlet / outlet channel 10.

[0055] For example, such as Figure 5 As shown, when the connecting block 6 is inserted into the slot 7 on the connecting seat 5, the first guide slope 17 can play a guiding role, so that the connecting block 6 can be smoothly inserted into the slot 7, reducing resistance and deviation during the insertion process, making the connection process smoother, and reducing the difficulty and time of manual operation.

[0056] In some examples, the outer wall of the connecting block 6 away from the oil inlet / outlet channel 10 has a second guide slope 18, and the end of the second guide slope 18 away from the oil inlet / outlet channel 10 is inclined inward.

[0057] For example, such as Figure 5 As shown, when the connecting block 6 is inserted into the slot 7, the second guide slope 18 enables the connecting block 6 to be inserted into the slot 7 more accurately, which can improve the insertion efficiency and accuracy of the connecting seat 5 and the connecting block 6, making the connection process smoother and more reliable.

[0058] In some examples, a drill pipe lifting frame also includes a quick-connect fitting 19, which is disposed on the connecting block 6 and communicates with the outer end of the oil inlet / outlet channel 10.

[0059] For example, such as Figure 4 and Figure 5As shown, one end of the quick connector 19 is in communication with the oil inlet and outlet passage 10, and the other end is used to connect an external oil pressure system. When the connecting seat 5 and the connecting block 6 need to be connected or disassembled, the quick connector 19 can quickly connect or disconnect the oil pressure system, control the oil pressure in the mounting cavity 9, and thus control the in-out of the insertion rod 14, so as to realize the connection and separation of the connecting seat 5 and the connecting block 6.

[0060] In some examples, the arc-shaped clamping piece 3 comprises a first arc-shaped rod body 3-1, a reinforcing rod 3-2, and a second arc-shaped rod body 3-3. The first arc-shaped rod body 3-1 is in a plurality, arranged along the length direction of the positioning sleeve 4, and hinged to one end of the positioning sleeve 4. The other end of all the first arc-shaped rod bodies 3-1 on the same positioning sleeve 4 is connected to the same reinforcing rod 3-2. One end of the second arc-shaped rod body 3-3 is connected to the reinforcing rod 3-2, and the other end of the second arc-shaped rod body 3-3 is bent and extended inwardly to the reinforcing rod 3-2.

[0061] For example, as shown in Figure 6 and Figure 7 , the plurality of first arc-shaped rod bodies 3-1 preliminarily clamp the drill rod 20, and all the first arc-shaped rod bodies 3-1 on the same positioning sleeve 4 are connected together by the reinforcing rod 3-2, which can enhance the overall strength and stability of the first arc-shaped rod body 3-1. The second arc-shaped rod body 3-3 can better fit the surface of the drill rod 20, increase the clamping force on the drill rod 20, more tightly hold the drill rod 20, prevent the drill rod 20 from shifting or falling during the overturning process, and increase the safety of the operation.

[0062] In some examples, the arc-shaped clamping piece 3 further comprises a connecting rod 3-4, which is inserted into and rotationally connected to the positioning sleeve 4. The first arc-shaped rod body 3-1 is connected to the connecting rod 3-4, and the connection is located outside the two ends of the positioning sleeve 4.

[0063] For example, as shown in Figure 4 , Figure 5 , Figure 6 and Figure 7 , the connecting rod 3-4 is inserted into and rotationally connected to the positioning sleeve 4, which can provide a basis for the installation and rotation of the arc-shaped clamping piece 3. The arc-shaped clamping piece 3 is located outside the positioning sleeve 4, and does not need to be opened on the side wall of the positioning sleeve 4 to realize the rotation of the arc-shaped clamping piece 3, which can better ensure the strength of the positioning sleeve 4.

[0064] In some examples, at least two second arc-shaped rod bodies 3-3 are connected to each reinforcing rod 3-2, and all the second arc-shaped rod bodies 3-3 on the same reinforcing rod 3-2 are arranged along the length direction of the reinforcing rod 3-2.

[0065] For example, as shown in Figure 6 and Figure 7As shown, at least two second arc-shaped rod bodies 3-3 arranged along the length direction of each reinforcing rod 3-2 are connected to each reinforcing rod 3-2, the drill rod 20 can be clamped from multiple positions, the clamping points of the drill rod 20 can be increased, the clamping force can be more evenly distributed, the drill rod 20 can be prevented from being damaged by excessive stress at a position, the uniformity and reliability of clamping can be improved, and the stability of the drill rod 20 during the overturning process can be better ensured.

[0066] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than limit the present disclosure. Although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present disclosure can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present disclosure, and they should be covered in the scope of the claims of the present disclosure.

Claims

1. A drill rod elevator characterized by, Comprise: Support frame (1), The turnover frame (2) is used for loading drill pipe (20), the turnover frame (2) is hinged with the support frame (1), after the turnover of the turnover frame (2) by the thrust or pull of the turnover drive mechanism, the drill pipe (20) is used to be erected; The drill pipe lifting frame further comprises an arc-shaped clamping piece (3), the two groups of arc-shaped clamping pieces (3) are arranged along the radial direction of the drill pipe (20), and the drill pipe clamping cavity is left between the two groups of arc-shaped clamping pieces (3), one end of the arc-shaped clamping piece (3) is rotatably connected with the turnover frame (2), and the axial direction of the rotation shaft is the same as the axial direction of the drill pipe (20), the other end of the arc-shaped clamping piece (3) is turned outward by the thrust of the drill pipe (20), for making the drill pipe (20) enter or exit the drill pipe clamping cavity.

2. A drill rod elevator according to claim 1, characterised in that, The drill pipe lifting frame further comprises: Positioning sleeve (4), the positioning sleeve (4) is arranged on the turnover frame (2), the length direction of the positioning sleeve (4) is the same as the length direction of the drill pipe (20), the number of the positioning sleeve (4) is two, and the two groups of arc-shaped clamping pieces (3) are rotatably connected with the two positioning sleeves (4) one by one; The other end of the connecting seat (5) has a slot (7); The other end of the connecting block (6) is inserted into the slot (7) and forms a detachable connection.

3. A drill rod elevator according to claim 2, characterised in that, The side wall of the slot (7) has a positioning groove (8), the connecting block (6) has an installation cavity (9) in the inside, the connecting block (6) has an oil inlet and outlet channel (10) on the side wall, which is used for connecting the installation cavity (9) with the outside, the connecting block (6) has an insertion hole (11) on the side wall corresponding to the positioning groove (8), and the drill pipe lifting frame further comprises: The sliding block (12) is slidably arranged in the installation cavity (9) and located between the oil inlet and outlet channel (10) and the insertion hole (11), the sliding direction of the sliding block (12) is the same as the axial direction of the slot (7), and the side wall of the sliding block (12) has a buffer groove (16); The push-pull rod (13) is located in the buffer groove (16), one end of the push-pull rod (13) is hinged with the sliding block (12); One end of the insertion rod (14) is hinged with the other end of the push-pull rod (13), the other end of the insertion rod (14) passes through the insertion hole (11) and is inserted into the positioning groove (8), after the sliding block (12) slides away from the oil inlet and outlet channel (10) by means of oil pressure, the push-pull rod (13) drives the insertion rod (14) to move to the inside of the connecting block (6), so that the insertion rod (14) is separated from the positioning groove (8). An elastic reset member (15) is arranged in the mounting cavity (9) and located on the side of the sliding block (12) away from the oil inlet / outlet channel (10), and is used to elastically push the sliding block (12) towards the oil inlet / outlet channel (10) so that the outer end of the insertion rod (14) is inserted into the positioning groove (8).

4. A drill rod elevator according to claim 3, characterised in that, The inner wall of one end of the connecting seat (5) towards the connecting block (6) is provided with a first guide inclined surface (17) which is inclined outwardly away from one end of the oil inlet / outlet channel (10).

5. A drill rod elevator according to claim 3, wherein, The outer wall of one end of the connecting block (6) away from the oil inlet / outlet channel (10) is provided with a second guide inclined surface (18) which is inclined inwardly away from one end of the oil inlet / outlet channel (10).

6. A drill rod elevator according to claim 3, wherein, The drill rod lifting frame further comprises a quick connector (19) which is arranged on the connecting block (6) and in communication with the outer end of the oil inlet / outlet channel (10).

7. A drill rod elevator according to claim 2, wherein, The arc-shaped clamping member (3) comprises: A plurality of first arc-shaped rods (3-1) are arranged along the length direction of the positioning sleeve (4), and one end of each first arc-shaped rod (3-1) is hingedly connected to the positioning sleeve (4); All the other ends of the first arc-shaped rods (3-1) on the same positioning sleeve (4) are connected to the same reinforcing rod (3-2); A second arc-shaped rod (3-3) has one end connected to the reinforcing rod (3-2) and the other end bent and extended inwardly of the reinforcing rod (3-2).

8. A drill rod elevator according to claim 7, characterised in that, The arc-shaped clamping member (3) further comprises a connecting rod (3-4) which is inserted into the positioning sleeve (4) and forms a rotating fit, and the first arc-shaped rods (3-1) are connected to the connecting rod (3-4) at the outer sides of the two ends of the positioning sleeve (4).

9. A drill rod elevator according to claim 7, wherein, At least two second arc-shaped rods (3-3) are connected to each reinforcing rod (3-2), and all the second arc-shaped rods (3-3) on the same reinforcing rod (3-2) are arranged along the length direction of the reinforcing rod (3-2).

Images