Root box

Abstract

The present invention provides a root box, which relates to the technical field of oilfield drilling equipment. The root box is used for drilling rod rooting, and includes a frame, a plurality of assembled crossbar assemblies and a plurality of carbonized sleepers. The plurality of assembled crossbar assemblies are rotatably connected to the frame and are detachably arranged relative to the frame, the plurality of carbonized sleepers are detachably mounted on the frame, the plurality of assembled crossbar assemblies and the plurality of carbonized sleepers are staggered, the assembled crossbar assemblies form a guide arc surface for guiding the drill rod to the carbonized sleepers, and the carbonized sleepers are used to carry the drill rod. The root box provided by the present invention can avoid direct "steel-to-steel" contact between the drill rod and the root box, protect the drill rod thread, and is easy to clean and maintain, and has a simple structure.

Description

Technical Field

[0001] The invention relates to the technical field of oilfield drilling equipment, in particular to a pipe stand box. Background Art

[0002] In the oil industry, the traditional drill rig base platform is usually made of sleepers stacked in a rectangular shape, with rubber pads laid on top to place drill pipe stands. For the existing drilling table pipe laying manipulator technology, the traditional "flat" stand box cannot guide the drill pipe stand and assist in the positioning of the stand when the manipulator is laying pipes. In addition, in low temperature and icy weather, the rubber pads laid on the tabletop have no fixing device, which can easily cause the rubber pads to slip or the drill pipe stands to slide sideways, causing safety hazards in the drilling stand laying work.

[0003] In the prior art, utility model patent CN208619065U provides a new type of metal root box, but the root box will cause the root box to have no buffer device. When laying pipes, the drill rod and the root box are in "steel-to-steel" contact, which can easily cause damage to the drill rod thread. The large round tube and the small round tube are arranged tangentially in pairs. If the direct placement assembly is adopted, there is no fixing device, and the rolling of the tangential round tubes in pairs causes uncertain gaps. If welding is used for fixing, the welding of the round tubes is likely to cause overall welding deformation, and the mud in the gap of the round tube is difficult to clean. This root box area is a manual operation channel, and there is no assembly and placement area for the pipe laying robot. Summary of the invention

[0004] The objects of the present invention include, for example, providing a stand box which can avoid direct "steel-to-steel" contact between the drill pipe and the stand box, protect the drill pipe threads, is easy to clean, easy to maintain, and has a simple structure.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] An embodiment of the present invention provides a pipe stand box for drilling rod pipe stand, wherein the pipe stand box comprises a frame, a plurality of assembled crossbar assemblies and a plurality of carbonized sleepers.

[0007] A plurality of the assembled cross-bar assemblies are rotatably connected to the frame and are detachably arranged relative to the frame, a plurality of the carbonized sleepers are detachably installed on the frame, a plurality of the assembled cross-bar assemblies and a plurality of the carbonized sleepers are staggered, the assembled cross-bar assemblies form a guiding arc surface for guiding the drill rod to the carbonized sleeper, and the carbonized sleeper is used to carry the drill rod.

[0008] Optionally, the stand box further comprises a rotating shaft assembly, the rotating shaft assembly is rotatably connected to the frame and is detachably arranged relative to the frame, and the assembled crossbar assembly is detachably connected to the rotating shaft assembly.

[0009] Optionally, the rotating shaft assembly includes a rotating shaft and a first mounting plate, the rotating shaft is rotatably connected to the frame, and the first mounting plate is fixedly mounted on one end of the rotating shaft along the circumference of the rotating shaft.

[0010] The assembled crossbar assembly includes a guide sleeve, which is sleeved on the rotating shaft and coaxially arranged with the rotating shaft. The end surface of one end of the guide sleeve is connected to the first mounting plate, and the outer side surface of the guide sleeve forms the guide arc surface.

[0011] Optionally, the assembled crossbar assembly further comprises a sealing plate, which is disposed inside the guide sleeve and located at an end of the guide sleeve away from the first mounting plate, and the sealing plate extends in the radial direction of the guide sleeve.

[0012] The rotating shaft assembly also includes a second mounting plate, which is fixedly mounted on an end of the rotating shaft away from the first mounting plate, and the first mounting plate and the sealing plate are closely connected and detachably arranged.

[0013] Optionally, the second mounting plate is located between the first mounting plate and the sealing plate.

[0014] Optionally, a through hole for the rotating shaft to pass through is provided inside the sealing plate, and an inner peripheral wall of the through hole is in contact with an outer periphery of the rotating shaft.

[0015] Optionally, a gap is formed between the guide sleeve and the rotating shaft.

[0016] Optionally, the guide sleeve is a round tube or an elliptical tube.

[0017] Optionally, the rotating shaft assembly also includes two locking devices, and connecting parts compatible with the locking devices are respectively provided at both ends of the rotating shaft. The locking devices are selectively connected to the connecting parts to connect the rotating shaft and the frame, or the connecting parts are loosened to remove the rotating shaft.

[0018] Optionally, the root box includes a bearing platform and two frames, the two frames are respectively installed on both sides of the bearing platform, the bearing platform is used to carry a mechanical arm for grabbing the drill rod, and each of the frames is staggered with a plurality of the assembled crossbar assemblies and a plurality of the carbonized sleepers.

[0019] The beneficial effects of the pipe box provided by the present invention compared with the prior art include, for example:

[0020] The root box provided by the present invention can be formed by a plurality of staggered assembled crossbar assemblies and a plurality of carbonized sleepers. When the drill rod is rooted, the threaded end of the drill rod can be guided by the guide arc surface on the assembled crossbar assembly to guide the threaded end of the drill rod to the carbonized sleeper, so that the threaded end of the drill rod is supported by the carbonized sleeper, so that the threaded end of the drill rod can be prevented from "colliding" with the metal part of the root box, so as to avoid damage to the drill rod thread, thereby improving the root safety of the drill rod. In addition, the assembled crossbar assembly can be detachably connected to the frame and the carbonized sleeper can be detachably connected to the frame, so that the assembled crossbar assembly and the carbonized sleeper can be easily disassembled, cleaned and maintained, thereby reducing the cleaning cost and maintenance cost of the root box, so as to ensure the cleanliness of the root box.

[0021] In addition, by forming a gap between the guide sleeve in the assembled crossbar assembly and the rotating shaft in the rotating shaft assembly, when the drill rod is placed on the guide arc surface outside the guide sleeve, some elastic deformation generated between the guide sleeve and the rotating shaft can absorb the impact force between the drill rod and the guide sleeve, thereby avoiding damage caused by inelastic deformation between the drill rod and the guide sleeve. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a schematic diagram of the structure of the root box provided in an embodiment of the present invention;

[0024] Figure 2 It is a schematic cross-sectional structural diagram of a pipe stand box provided in an embodiment of the present invention;

[0025] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0026] Figure 4 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0027] Figure 5 It is another schematic diagram of the structure of the pipe stand box provided in an embodiment of the present invention.

[0028] Icons: 10-root box; 100-frame; 200-assembled crossbar assembly; 210-guide sleeve; 211-guide arc surface; 212-gap; 220-sealing plate; 300-carbonized sleeper; 400-rotating shaft assembly; 410-rotating shaft; 411-rotating part; 412-connecting part; 420-first mounting plate; 430-second mounting plate; 440-locking device; 450-rotating connector; 451-copper sleeve; 452-shaft sleeve; 500-supporting platform. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. appear to indicate an orientation or position relationship, they are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship in which the product of the invention is usually placed when used. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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.

[0033] In addition, the terms “first”, “second”, etc., if used, are merely used to distinguish between the descriptions and should not be understood as indicating or implying relative importance.

[0034] It should be noted that, in the absence of conflict, the features in the embodiments of the present invention may be combined with each other.

[0035] See also Figure 1 , Figure 1The present invention provides a structural diagram of a pipe stand box in an embodiment of the present invention. The present embodiment provides a pipe stand box 10, which is used for drilling pipe pipe stand arrangement of an oil field drilling rig, and the pipe stand box 10 has a simple structure and low cost, and can also avoid direct "steel-to-steel" contact between the drill pipe and the pipe stand box 10, protect the drill pipe thread, and is easy to clean and maintain.

[0036] It should be noted that, one end of the drill rod is provided with a thread, and the connection between the drill rod and its corresponding vertical root is completed by the thread. When the drill rod is vertically drilled, the end of the drill rod provided with the thread contacts the vertical root box 10. In the prior art, the vertical root box 10 is made of metal. At this time, there is a "hard collision" between the threaded end of the drill rod and the vertical root box 10, which causes damage to the thread of the drill rod, thereby affecting the stable installation of the drill rod on the drilling rig, and causing certain safety hazards. In addition, the mud and dirt in the partial gap 212 on the vertical root box 10 in the prior art is difficult to clean, which may cause corrosion damage to the vertical root box 10 for a long time, thereby reducing the service life of the vertical root box 10 and increasing the cost of the vertical root box 10. The vertical root box 10 provided in this embodiment can improve the above technical problems.

[0037] The stand box 10 includes a frame 100 , a plurality of assembled crossbar assemblies 200 and a plurality of carbonized sleepers 300 . A plurality of assembled crossbar assemblies 200 are rotatably connected to the frame 100 and are detachably arranged relative to the frame 100, and a plurality of carbonized sleepers 300 are detachably installed on the frame 100. By detachably connecting the assembled crossbar assemblies 200 relative to the frame 100 and by detachably connecting the carbonized sleepers 300 relative to the frame 100, when mud and dirt are accumulated in the gap 212 on the vertical root box 10, the plurality of assembled crossbar assemblies 200 and the plurality of carbonized sleepers 300 can be removed, and the frame 100, the plurality of assembled crossbar assemblies 200 and the plurality of carbonized sleepers 300 can be cleaned respectively, thereby improving the cleaning convenience of the vertical root box 10 and reducing the cleaning cost; in addition, the frame 100, the plurality of assembled crossbar assemblies 200 and the plurality of carbonized sleepers 300 can be maintained respectively, thereby reducing the maintenance difficulty and maintenance cost of the vertical root box 10.

[0038] In addition, a plurality of assembled crossbar assemblies 200 and a plurality of carbonized sleepers 300 are arranged in an interlaced manner, and the assembled crossbar assemblies 200 form a guide arc surface 211 for guiding the drill rod to the carbonized sleeper 300, and the carbonized sleeper 300 is used to carry the drill rod. When the drill rod is placed on the vertical root box 10, the threaded end of the drill rod is placed on the guide arc surface 211, and the assembled crossbar assemblies 200 can rotate relative to the frame 100, and through the guiding effect of the guide arc surface 211, the threaded end of the drill rod can be guided to the carbonized sleeper 300, and the carbonized sleeper 300 can provide a bearing effect on the threaded end of the drill rod, so that the carbonized sleeper 300 can provide stable support for the drill rod, and can avoid the threaded end of the drill rod from "hard-on-hard" with the vertical root box 10 through the softness of the carbonized sleeper 300, that is, it can avoid damage to the thread of the drill rod, and then ensure the safety and integrity of the drill rod. Furthermore, by staggered arrangement of the plurality of carbonized sleepers 300 and the plurality of assembled crossbar assemblies 200, multiple drill rods can be set up on the set up box 10, while damage caused by collision between adjacent drill rods can be avoided.

[0039] It should be noted that, in the present embodiment, the highest points of the tops of the multiple prefabricated cross-bar assemblies 200 are located within the same plane. Similarly, the upper side surfaces of the multiple carbonized sleepers 300 are also located on the same plane, and the plane formed by the tops of the multiple prefabricated cross-bar assemblies 200 is higher than the upper side surfaces of the multiple carbonized sleepers 300, so that when the drill rod is rooted, the drill rod can first contact the prefabricated cross-bar assembly 200, thereby preventing the drill rod from directly contacting the carbonized sleeper 300 and colliding with the carbonized sleeper 300, thereby causing damage to the carbonized sleeper 300.

[0040] The top of the multiple assembled crossbar assemblies 200 refers to the highest side of the assembled crossbar assemblies 200 in the upward direction when the root box 10 is placed normally, and at this time, the plane formed by the highest points of the tops of the multiple assembled crossbar assemblies 200 is parallel to the horizontal plane; similarly, at this time, the upper side surfaces of the multiple carbonized sleepers 300 are parallel to the horizontal plane. It should be understood that in other embodiments, the arrangement of the multiple assembled crossbar assemblies 200 and the multiple carbonized sleepers 300 can also be different. For example, the height of the multiple assembled crossbar assemblies 200 is higher than the height of the upper side surfaces of two adjacent carbonized sleepers 300, etc. At this time, the drill rod can also be prevented from directly contacting the carbonized sleeper when placed on the root box 10, so that the drill rod can contact the carbonized sleeper 300 after being guided by the assembled crossbar assemblies 200, and then a certain buffering effect can be provided to the drill rod through the carbonized sleeper 300, which can prevent the thread of the drill rod from being damaged.

[0041] For further information, please refer to Figure 1 and Figure 2 , Figure 2The cross-sectional structure diagram of the pipe box provided in the embodiment of the present invention, the pipe box 10 further includes a rotating shaft assembly 400, the rotating shaft assembly 400 is rotatably connected to the frame 100 and is detachably arranged relative to the frame 100, and the assembled cross bar assembly 200 is detachably connected to the rotating shaft assembly 400. That is, in this embodiment, the assembled cross bar assembly 200 can be detachably connected to the frame 100 by being detachably connected to the rotating shaft assembly 400, and at the same time, the rotating shaft assembly 400 can also be detachably connected to the frame 100, so that the rotating shaft assembly 400 can be detached from the frame 100 when cleaning or maintenance is required, and the rotating shaft assembly 400 can be cleaned, thereby saving cleaning costs and maintenance costs.

[0042] It should be noted that, in other embodiments, the assembled cross-rail assembly 200 can also be directly connected to the frame 100 , and at the same time, the assembled cross-rail assembly 200 can be rotatably arranged relative to the frame 100 and can be detachably arranged.

[0043] Furthermore, in this embodiment, the assembled crossbar assembly 200 and the carbonized sleeper 300 are both in the shape of long strips, and each assembled crossbar assembly 200 is arranged on one side in the width direction of the carbonized sleeper 300. Similarly, each carbonized sleeper 300 is arranged on one side in the width direction of the assembled crossbar assembly 200. Through the above arrangement, it is convenient to arrange multiple assembled crossbar assemblies 200 and multiple carbonized sleepers 300, and at the same time, it can ensure efficient storage of drill pipe stand roots and reasonable use of space.

[0044] Please refer to Figure 2 and Figure 3 , Figure 3 for Figure 2In the enlarged structural diagram at A in the middle, the rotating shaft assembly 400 includes a rotating shaft 410 and a first mounting plate 420. The rotating shaft 410 is rotatably connected to the frame 100, and the first mounting plate 420 is fixedly mounted on one end of the rotating shaft 410 along the circumference of the rotating shaft 410. Each rotating shaft 410 is located between two adjacent and spaced carbonized sleepers 300, and the rotating shaft 410 can be rotatably arranged relative to the frame 100. The first mounting plate 420 is protruded along the axial direction of the rotating shaft 410, and the rotating shaft 410 is perpendicular to the first mounting plate 420. Of course, when the first mounting plate 420 has a certain inclination relative to the rotating shaft 410, when the angle between the first mounting plate 420 and the rotating shaft 410 is between 85° and 95°, the rotating shaft 410 can also be regarded as perpendicular to the first mounting plate 420; it should be understood that in other embodiments, the angle formed by the first mounting plate 420 and the rotating shaft 410 can also be set to other values, such as 80° or 120°. In addition, in this embodiment, the first mounting plate 420 is fixedly connected to the rotating shaft 410 by welding. It should be understood that in other embodiments, the first mounting plate 420 can also be fixedly connected to the rotating shaft 410 by integral molding, bonding, snap-on, key connection, etc.

[0045] Furthermore, in this embodiment, the first mounting plate 420 is in a circular ring shape, a hole for the rotation shaft 410 to pass through is disposed at the center of the first mounting plate 420 , and the rotation shaft 410 is coaxially disposed with the first mounting plate 420 .

[0046] Optionally, in this embodiment, the rotating shaft 410 and the frame 100 are rotatably arranged through the rotating connection member 450, and the rotating connection member 450 is connected to the frame 100, and the rotating shaft 410 is connected to the rotating connection member 450 and can realize the rotating connection of the rotating shaft 410 relative to the frame 100. Among them, the frame 100 is provided with a rotating connection hole (not marked in the figure) for installing the rotating connection part 412, and the rotating connection member 450 includes a copper sleeve 451 and a shaft sleeve 452, the outer ring of the shaft sleeve 452 is installed inside the rotating connection hole, and the outer ring of the shaft sleeve 452 is attached to the inner circumferential wall of the rotating connection hole, the copper sleeve 451 is rotatably arranged on the inner ring of the shaft sleeve 452, and the copper sleeve 451 is sleeved on the rotating shaft 410, so that when the rotating shaft 410 rotates, the copper sleeve 451 drives the copper sleeve 451 to rotate relative to the shaft sleeve 452, thereby realizing the rotation of the rotating shaft 410 relative to the frame 100. It should be understood that in other embodiments, the rotating connection part 412 may also be implemented in other ways, for example, the rotating connection part 412 may be implemented using a bearing. Alternatively, in other embodiments, the rotating connection part 412 may be eliminated so that the rotating shaft 410 is directly rotatably connected to the rotating connection hole.

[0047] In addition, in this embodiment, both ends of the rotating shaft 410 pass through two opposite side walls of the frame 100, and both ends of the rotating shaft 410 are rotatably connected to the side walls of the frame 100. Optionally, the rotating shaft assembly 400 further includes two locking devices 440, and both ends of the rotating shaft 410 are respectively provided with connecting parts 412 adapted to the locking devices 440, and the locking devices 440 are selectively connected to the connecting parts 412 to connect the rotating shaft 410 and the frame 100, or the connecting parts 412 are loosened to remove the rotating shaft 410. In this embodiment, the end of the rotating shaft 410 has a rotating portion 411 for being installed on the rotating connector 450 and a connecting portion 412 that penetrates the side wall of the frame 100. The connecting portion 412 is adapted to the locking device 440, and can be connected to the connecting portion 412 through the locking device 440 to selectively lock the rotating shaft 410 and the frame 100. Optionally, in this embodiment, the locking device 440 adopts a locking nut, and the outer side of the connecting portion 412 is provided with an external thread adapted to the locking nut, so that the rotating shaft 410 and the frame 100 can be stably connected by screwing the locking nut into the connecting portion 412 and locking it, thereby preventing the rotating shaft 410 from falling off or getting loose. When the rotating shaft 410 needs to be disassembled, the rotating shaft 410 can be disassembled by simply unscrewing the locking nut and removing the locking nut. By setting the locking device 440, the connection stability of the rotating shaft 410 relative to the frame 100 can be achieved, thereby ensuring the stability of the entire root box 10. It should be understood that in other embodiments, the locking nut can also be replaced by other structures. For example, the locking device 440 is provided with a sleeve that matches the connecting portion 412, and a through hole is provided in the axial direction of the locking device 440, so that a spring latch can pass through the through hole and abut against the frame 100 to achieve locking; or a through hole is provided in the radial direction of the locking device 440, so that the spring latch passes through the through hole and abuts against the frame 100 to achieve locking. In addition, the locking device 440 can also be fixed with a screw, that is, a threaded hole that matches the screw is provided on the locking device 440, and the screw can be screwed into the threaded hole and abut against the frame 100 to achieve locking.

[0048] Furthermore, the assembled crossbar assembly 200 includes a guide sleeve 210, which is sleeved on the rotating shaft 410 and is coaxially arranged with the rotating shaft 410, and the end surface of one end of the guide sleeve 210 is connected to the first mounting plate 420. The guide sleeve 210 is in a hollow cylindrical shape, and the end surface of one end of the guide sleeve 210 is attached to the first mounting plate 420, and is fixedly connected to the first mounting plate 420 and detachably arranged relative to the first mounting plate 420. The connection between the guide sleeve 210 and the rotating shaft 410 can be achieved by connecting the first mounting plate 420 and the guide sleeve 210. When the guide sleeve 210 is subjected to an external force, the guide sleeve 210 can drive the first mounting plate 420 to rotate, and the first mounting plate 420 can drive the rotating shaft 410 to rotate relative to the frame 100, thereby realizing the rotation setting of the guide sleeve 210 relative to the frame 100. It should be noted that the end surface of the guide sleeve 210 and the first mounting plate 420 are fixedly connected by screw connection, that is, a plurality of screws can pass through the first mounting plate 420 and penetrate the guide sleeve 210 from the end surface of the guide sleeve 210, so that the first mounting plate 420 and the guide sleeve 210 can be fixedly connected; and the guide sleeve 210 can be disassembled relative to the first mounting plate 420 by removing the screws, thereby realizing the detachable setting of the guide sleeve 210 and the first mounting plate 420. It should be understood that in other embodiments, the connection mode of the guide sleeve 210 and the first mounting plate 420 can also be set to other modes, for example, a clamping portion (not shown) is provided on the end surface of the guide sleeve 210, and a clamping hole (not shown) adapted to the clamping portion is opened on the first mounting plate 420, and the fixing connection and detachable setting of the guide sleeve 210 and the first mounting plate 420 can be realized by the mutual cooperation of the clamping portion and the clamping groove.

[0049] Further, in the present embodiment, the outer side surface of the guide sleeve 210 forms a guide arc surface 211, and when the guide sleeve 210 rotates, the guide arc surface 211 rotates synchronously, and the drill rod can be guided to the carbonized sleeper 300 through the guide arc surface 211. Optionally, the guide sleeve 210 can be set as a cylinder or an elliptical cylinder, so that the guide arc surface 211 can be arc-shaped, improve the guiding ability of the guide arc surface 211, and ensure that the guide arc can guide the drill rod to the carbonized sleeper 300. In the present embodiment, the guide sleeve 210 adopts a cylindrical setting.

[0050] Optionally, please refer to Figure 2 and Figure 4 , Figure 4 for Figure 2In the enlarged structural diagram at B in the figure, the rotating shaft assembly 400 also includes a second mounting plate 430, which is fixedly mounted on one end of the rotating shaft 410 away from the first mounting plate 420. In this embodiment, the second mounting plate 430 and the first mounting plate 420 are arranged in the same manner, and the difference between the first mounting plate 420 and the second mounting plate 430 is that the diameter of the first mounting plate 420 centered on the central axis of the rotating shaft 410 is larger than the diameter of the second mounting plate 430 centered on the central axis of the rotating shaft 410, that is, in this embodiment, the rotating shaft 410 is also perpendicular to the second mounting plate 430. Further, in this embodiment, the second mounting plate 430 is also annular, and the rotating shaft 410 and the second mounting plate 430 are arranged coaxially.

[0051] The assembled crossbar assembly 200 further includes a sealing plate 220, which is disposed inside the guide sleeve 210 and located at one end of the guide sleeve 210 away from the first mounting plate 420, and the sealing plate 220 extends in the radial direction of the guide sleeve 210. That is, the sealing plate 220 is disposed inside the guide sleeve 210, and the sealing plate 220 is perpendicular to the axis of the guide sleeve 210. At the same time, the sealing plate 220 is used for detachable connection with the second mounting plate 430, thereby realizing a stable connection relationship between the guide sleeve 210 and the rotating shaft 410.

[0052] Optionally, the second mounting plate 430 is located between the first mounting plate 420 and the sealing plate 220, thereby improving the assembly efficiency of the guide sleeve 210 and the rotating shaft 410. When the guide sleeve 210 and the rotating shaft 410 are installed, the guide sleeve 210 is sleeved on the rotating shaft 410 from one end of the second mounting plate 430 of the rotating shaft 410, and the second mounting plate 430 is located inside the guide sleeve 210. When the end surface of the guide sleeve 210 is against the first mounting plate 420, the sealing plate 220 and the second mounting plate 430 are fitted, and the first mounting plate 420 and the guide sleeve 210 are connected by screws, and the sealing plate 220 and the second mounting plate 430 are fixedly connected by screws at the same time, so that the guide sleeve 210 and the rotating shaft 410 can be stably connected. Among them, the sealing plate 220 can prevent impurities such as mud from entering the gap 212, thereby ensuring the cleanliness of the rotating shaft 410 and the guide sleeve 210.

[0053] In this embodiment, the sealing plate 220 is roughly annular, and a through hole is formed in the center of the sealing plate 220 for the rotation shaft 410 to pass through. The outer circumference of the sealing plate 220 is connected to the inner circumferential wall of the guide sleeve 210. The inner circumferential wall of the through hole in the center of the sealing plate 220 is matched with the outer circumferential wall of the rotation shaft 410. When the guide sleeve 210 is installed on the rotation shaft 410, the inner circumferential wall of the through hole fits with the rotation shaft 410, thereby improving the sealing performance of the sealing plate 220. It should be understood that in other embodiments, the inner circumferential wall of the through hole in the center of the sealing plate 220 may not fit with the rotation shaft 410. When the sealing plate 220 is fitted and connected with the second mounting plate 430, the second mounting plate 430 can also provide a certain sealing effect.

[0054] It should be noted that, in the present embodiment, by connecting the first mounting plate 420 to the end face of the guide sleeve 210, a stable connecting force can be provided to the guide sleeve 210 along the axial direction of the guide sleeve 210; in addition, by connecting the second mounting plate 430 to the sealing plate 220 connected to the inner circumferential wall of the guide sleeve 210, a stable connecting force can be provided to the guide sleeve 210 along the radial direction of the guide sleeve 210, thereby providing the guide sleeve 210 with a stable holding effect of the connection position in different directions, thereby improving the stability of the guide sleeve 210, and improving the stability of the guide sleeve 210 when contacting the drill pipe.

[0055] Of course, in other embodiments, the first mounting plate 420 and the second mounting plate 430 may be connected to the end surface of the guide sleeve 210 , or the first mounting plate 420 and the second mounting plate 430 may be connected to the radial inner wall of the guide sleeve 210 .

[0056] Furthermore, in this embodiment, a gap 212 is formed between the guide sleeve 210 and the rotating shaft 410. Therefore, when the drill rod is placed on the guide sleeve 210, the setting of the gap 212 can cause the guide sleeve 210 to produce some elastic deformation, thereby absorbing part of the impact force between the drill rod and the guide sleeve 210, thereby reducing the impact on the guide sleeve 210, so as to avoid damage to the guide sleeve 210 caused by the drill rod. In addition, the setting of the gap 212 can also improve the assembly efficiency between the guide sleeve 210 and the rotating shaft 410, thereby improving the overall disassembly and assembly efficiency of the root box 10, and can improve the operation efficiency, maintenance efficiency and cleaning efficiency of the entire drill rod root storage operation. It should be understood that in other embodiments, the setting of the gap 212 can also be cancelled, that is, the inner peripheral wall of the guide sleeve 210 can also be attached to the outer peripheral wall of the rotating shaft 410.

[0057] Alternatively, see Figure 5 , Figure 5This is another structural schematic diagram of the root box provided in an embodiment of the present invention. The root box 10 may also include a bearing platform 500 and two frames 100. The two frames 100 are respectively installed on both sides of the bearing platform 500. The bearing platform 500 is used to load and carry a mechanical arm for grabbing a drill rod. A plurality of assembled crossbar assemblies 200 and a plurality of carbonized sleepers 300 are staggered on each frame 100. The mechanical arm can be loaded through the bearing platform 500, and then the drill rod rooting operation can be performed on the drill rod through the mechanical arm on the bearing platform 500, thereby improving the work efficiency.

[0058] It should be understood that in other embodiments, the pipe box 10 may also include only one frame 100 and eliminate the setting of the supporting platform 500. Of course, multiple frames 100 may also be provided, and multiple supporting platforms 500 may be provided at the same time, so that each supporting platform 500 is provided between two frames 100 to meet actual needs.

[0059] In summary, the root box 10 provided in this embodiment can be formed by a plurality of assembled crossbar assemblies 200 and a plurality of carbonized sleepers 300 arranged in an interlaced manner. When the drill rod is rooted, the threaded end of the drill rod can be guided by the guide arc surface 211 on the assembled crossbar assembly 200 to guide the threaded end of the drill rod to the carbonized sleeper 300, so that the threaded end of the drill rod is supported by the carbonized sleeper 300, so as to avoid the "hard collision" between the threaded end of the drill rod and the metal part of the root box 10, so as to avoid damage to the thread of the drill rod, thereby improving the rooting safety of the drill rod. In addition, the assembled crossbar assembly 200 can be detachably connected to the frame 100 and the carbonized sleeper 300 can be detachably connected to the frame 100, so that the assembled crossbar assembly 200 and the carbonized sleeper 300 can be easily disassembled, cleaned and maintained, thereby reducing the cleaning cost and maintenance cost of the root box 10, so as to ensure the cleanliness of the root box 10. In addition, by forming a gap 212 between the guide sleeve 210 in the assembled crossbar assembly 200 and the rotating shaft 410 in the rotating shaft assembly 400, when the drill rod is placed on the guide arc surface 211 outside the guide sleeve 210, some elastic deformation generated between the guide sleeve 210 and the rotating shaft 410 can absorb the impact force between the drill rod and the guide sleeve 210, thereby avoiding damage caused by non-elastic deformation between the drill rod and the guide sleeve 210.

[0060] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A stand box for drilling pipe stands, characterized in that: The stand box includes a frame, a plurality of assembled crossbar assemblies, a plurality of carbonized sleepers and a rotating shaft assembly; A plurality of the assembled crossbar assemblies are rotatably connected to the frame and are detachably arranged relative to the frame, a plurality of the carbonized sleepers are detachably mounted on the frame, a plurality of the assembled crossbar assemblies and a plurality of the carbonized sleepers are staggered, the assembled crossbar assemblies form a guide arc surface for guiding the drill rod to the carbonized sleepers, the carbonized sleepers are used to carry the drill rod, the rotating shaft assembly is rotatably connected to the frame and is detachably arranged relative to the frame, and the assembled crossbar assembly is detachably connected to the rotating shaft assembly; Wherein, the rotating shaft assembly comprises a rotating shaft, a first mounting plate and two locking devices, the rotating shaft is rotatably connected to the frame, and the first mounting plate is fixedly mounted on one end of the rotating shaft along the circumference of the rotating shaft; both ends of the rotating shaft are respectively provided with connecting parts adapted to the locking devices, and the locking devices are selectively connected to the connecting parts to connect the rotating shaft and the frame, or the connecting parts are loosened to remove the rotating shaft; The assembled crossbar assembly includes a guide sleeve, which is sleeved on the rotating shaft and coaxially arranged with the rotating shaft. The end face of one end of the guide sleeve is connected to the first mounting plate, and the outer side surface of the guide sleeve forms the guide arc surface; a gap is formed between the guide sleeve and the rotating shaft.

2. The pipe box according to claim 1, characterized in that: The assembled crossbar assembly further includes a sealing plate, which is disposed inside the guide sleeve and located at an end of the guide sleeve away from the first mounting plate, and the sealing plate extends in the radial direction of the guide sleeve; The rotating shaft assembly also includes a second mounting plate, which is fixedly mounted on an end of the rotating shaft away from the first mounting plate, and the first mounting plate and the sealing plate are closely connected and detachably arranged.

3. The pipe box according to claim 2, characterized in that: The second mounting plate is located between the first mounting plate and the sealing plate.

4. The pipe box according to claim 2, characterized in that: A through hole for the rotating shaft to pass through is arranged inside the sealing plate, and an inner peripheral wall of the through hole is in contact with the outer periphery of the rotating shaft.

5. The pipe box according to claim 1, characterized in that: The guide sleeve is a round tube or an elliptical tube.

6. The pipe box according to any one of claims 1 to 5, characterized in that: The stand box includes a bearing platform and two frames, the two frames are respectively installed on both sides of the bearing platform, the bearing platform is used to carry a mechanical arm for grabbing the drill rod, and each of the frames is staggered with a plurality of the assembled crossbar assemblies and a plurality of the carbonized sleepers.

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