A type of fastener for a pipe wringing machine

Abstract

This application relates to a fastener for a pipe wringing machine, specifically in the field of fasteners for pipe wringing machines. It includes a connecting part and multiple fastener bodies of different sizes installed at one end of the connecting part. Each fastener body is movably connected to one end of the connecting part and has a slot for clamping drill rods or casings. Each fastener body has a first locking slot and a second locking slot. A locking structure is provided within the connecting part, comprising a locking housing fixed to the connecting part and a locking block slidably connected within the locking housing. The locking block can be inserted into the first locking slot or the second locking slot to lock the fastener body in either a working or non-working state. This application has the advantages of facilitating the carrying of multiple fasteners by workers, reducing the time required for frequent fastener changes, and improving work efficiency.

Description

Technical Field

[0001] This application relates to the field of fasteners for pipe wringing machines, and in particular to a fastener for loading and unloading pipe wringing machines. Background Technology

[0002] In the fields of oil, gas, and geological exploration, pipe screwing machines are among the most critical pieces of equipment. With the continuous development of these industries, the demand for pipe materials such as drill pipes and casings is increasing daily, and pipe screwing machines play an indispensable role in the connection and disassembly of these pipes. Their application greatly improves the efficiency of exploration and mining operations, enabling the rapid and accurate connection and disassembly of various types of pipes, thus providing a strong guarantee for the stable development of the entire industry.

[0003] In traditional pipe-tightening machine loading and unloading operations, to accommodate the connection and disassembly of different specifications of drill rods, casings, and other pipe materials, the usual practice was to prepare a variety of different specifications of fasteners. During the operation, if different specifications of pipe materials were encountered, the corresponding fasteners needed to be changed frequently. This meant that operators needed to carry a large number of different specifications of fasteners to the work site, and when changing fasteners, operators needed to find the appropriate specifications from among many fasteners, and spend a certain amount of time on installation and disassembly operations.

[0004] Because the fastener assembly of the pipe tightening machine has many different specifications, it is necessary to carry multiple fasteners at the same time. This makes it very inconvenient to carry, increases the workload of the operator and the difficulty of handling. In addition, frequent replacement of fasteners wastes time, reduces work efficiency, and is also prone to loss due to the need for frequent storage. Utility Model Content

[0005] To facilitate workers in carrying various fasteners, reduce the time required for frequent fastener replacements, and improve work efficiency, this application provides a fastener loading and unloading method for a pipe tightening machine.

[0006] A fastener for a pipe screwing machine includes a connecting part and a plurality of fastener bodies of different specifications and sizes installed at one end of the connecting part. The fastener bodies are movably connected to one end of the connecting part. Each fastener body is provided with a slot for clamping a drill rod or casing. Each fastener body is provided with a first locking slot and a second locking slot.

[0007] The connecting part is provided with a locking structure, which includes a locking housing fixed to the connecting part and a locking block slidably connected to the locking housing. The locking block can be inserted into the first locking slot or the second locking slot to lock the working state or non-working state of the buckle body.

[0008] By adopting the above technical solution, the connecting part is connected to the main body of the pipe screwing machine. The drill rod or casing is clamped using the slot on the coupling body. Then, the pipe screwing machine is started, driving the coupling body to rotate, thereby achieving the connection and disassembly of the drill rod or casing. The coupling body can be movably connected to one end of the connecting part. During operation, a suitable coupling body can be selected according to the actual required drill rod or casing specifications and placed in the working state. The locking block in the locking structure is then inserted into the first locking slot of the coupling body to lock its working state, ensuring stable loading and unloading operations. When it is necessary to change the coupling body specifications, the locking block is disengaged from the first locking slot of the current coupling body to release the lock. The coupling body is then rotated to a non-working standby state, and the locking block is inserted into the second locking slot of the coupling body to fix this state, avoiding interference with the operation of other coupling bodies. Then, a suitable coupling body is selected and rotated to the working position, and the locking block is inserted into its first locking slot to lock it. Workers can freely combine their commonly used fasteners into one unit. When a fastener needs to be replaced, the replacement fastener can be quickly installed using the locking mechanism, greatly reducing the time spent on fastener replacement, effectively improving work efficiency, and preventing fastener loss due to frequent storage. At the same time, there is no need to carry a large number of fasteners of different specifications to the work site as before, solving the problem of inconvenience in carrying them and reducing the workload and difficulty of handling for operators.

[0009] Optionally, a pressing part is slidably connected to the locking housing, and a guide slope is provided on the side of the locking block near the pressing part. The guide slope is used to push the locking block out of the first locking groove or the second locking groove when pressed.

[0010] A telescopic rod is fixed between the locking block and the locking housing, and a locking spring is sleeved on the outside of the telescopic rod. The locking spring is used to push the locking block to maintain the locked state.

[0011] By adopting the above technical solution, when it is necessary to change the working or non-working state of the buckle body, pressing the sliding pressing part on the locking housing will compress the guide slope on the side of the locking block near the pressing part. Under the action of the guide slope, the locking block is pushed and disengages from the first locking groove or the second locking groove. At this time, the buckle body can be rotated or moved. After the buckle body is adjusted, the pressing part is released. The locking spring pushes the locking block due to its elastic restoring force, causing it to re-insert into the corresponding first locking groove or the second locking groove, thereby locking the buckle body. The automatic disengagement of the locking block during the pressing operation is achieved by using the guide slope, which is convenient and quick to operate and can efficiently change the state of the buckle body. The telescopic rod can prevent the locking spring from deforming and improve its service life. The locking spring can keep the locking block stably and reliably locked, ensuring the stability of the buckle body in the working or non-working state, thereby ensuring the normal use of the fasteners on the pipe tightening machine.

[0012] Optionally, the card block has a chamfer on the side near the buckle body, and the pressing part has a transition arc on the side near the guide slope.

[0013] By adopting the above technical solution, when it is necessary to release the locking state of the buckle, the pressing part is pressed down, and the transition arc first contacts the guide slope and produces a smooth guiding effect, pushing the block to smoothly disengage from the first locking groove or the second locking groove. The transition arc ensures that the force transmission is smoother during the pressing operation, avoiding jamming and stuck phenomena. When the block is to be reinserted into the locking groove, the guide angle can guide the block to smoothly enter the first locking groove or the second locking groove.

[0014] Optionally, the locking housing is provided with a rotating shaft, and the buckles are all sleeved on the outside of the rotating shaft and arranged along the axial direction of the rotating shaft, forming a separable rotatable connection between the rotating shaft and the locking housing.

[0015] By adopting the above technical solution, when it is necessary to replace the buckle body, the rotating shaft can be separated from the locking housing, the buckle body to be replaced can be removed, the appropriate buckle body can be put into the rotating shaft, and finally the rotating shaft can be reconnected to the locking housing. Workers can freely combine buckles of commonly used specifications and models, integrating buckles of different specifications into one, avoiding the need to carry multiple buckles of different specifications, reducing the carrying burden of workers, and improving work efficiency.

[0016] Optionally, one end of the rotating shaft is fixed with a fixed anti-detachment block, and the other end is threadedly connected with an adjustable anti-detachment block. The fixed anti-detachment block and the adjustable anti-detachment block cooperate to restrict the buckle body from sliding axially along the rotating shaft.

[0017] By adopting the above technical solution, when installing the fasteners, multiple fasteners are first sequentially fitted onto the outside of the rotating shaft. A fixing anti-detachment block is already fixed to one end of the rotating shaft. Then, the adjusting anti-detachment block is installed on the rotating shaft from the other end via a threaded connection until the adjusting anti-detachment block is in tight contact with the fastener. When a fastener needs to be replaced, the adjusting anti-detachment block is first unscrewed from the rotating shaft, then the fastener to be replaced is removed, a new fastener is installed, and the adjusting anti-detachment block is then tightened back onto the rotating shaft. The cooperation between the fixing anti-detachment block and the adjusting anti-detachment block restricts the slippage of the fastener along the axial direction of the rotating shaft, ensuring the stability of the fastener's position on the rotating shaft and preventing axial movement of the fastener during use that could affect normal operation. At the same time, the threaded connection of the adjusting anti-detachment block makes the installation and removal of the fasteners more convenient and quick, allowing workers to replace fasteners of different specifications according to actual needs, thus improving the flexibility and applicability of the pipe tightening machine in installing and removing fasteners.

[0018] Optionally, the side of the buckle body opposite to the slot is arranged in an arc shape.

[0019] By adopting the above technical solution, in actual use, when it is necessary to switch between different specifications of clips for clamping drill rods or casings, the side of the clip that is away from the slot is arc-shaped, which makes the contact between the arc surface and the surrounding parts smoother and more fluid during the rotation of the clip around the rotation axis. This reduces the possibility of jamming or interference with the surrounding structure during rotation, and significantly improves the smoothness and convenience of clip switching.

[0020] Optionally, a slide rod is fixed to the outer wall of the locking block, the end of the slide rod extends to the outside of the locking housing and is fixed with an indicator plate, and a slide groove is provided on the side wall of the locking housing along the moving direction of the locking block, and the slide rod is slidably connected in the slide groove.

[0021] By adopting the above technical solution, the indicator plate is used to display the position of the card block, so as to facilitate quick judgment of whether the card block is inserted into the first locking slot or the second locking slot, preventing the card block from slipping out of the locking slot and reducing potential safety hazards.

[0022] Optionally, the contact surface of the buckle body is provided with a carburized hardened layer formed by carburizing treatment, and the depth of the carburized hardened layer is greater than or equal to one-tenth of the thickness of the buckle body.

[0023] By adopting the above technical solution, carburizing treatment is performed on the contact surface of the buckle to form a carburized hardened layer, thereby improving the surface hardness and wear resistance of the buckle, enabling it to better withstand friction and pressure in high-intensity working environments, reducing wear, deformation and breakage, and extending the service life of the buckle.

[0024] In summary, this application includes at least one of the following beneficial technical effects:

[0025] 1. Workers can freely combine and match the fasteners of their commonly used specifications and models into one unit. When a fastener needs to be replaced, the replacement fastener can be quickly installed through the locking structure, which greatly reduces the time spent on replacing fasteners, effectively improves work efficiency, and prevents the loss of fasteners due to frequent storage. At the same time, there is no need to carry a large number of fasteners of different specifications to the work site as before, which solves the problem of inconvenience in carrying them and reduces the workload and difficulty of handling for operators.

[0026] 2. When it is necessary to replace the buckle body, the rotating shaft can be separated from the locking housing, the buckle body to be replaced can be removed, the appropriate buckle body can be put into the rotating shaft, and finally the rotating shaft can be reconnected to the locking housing. The staff can freely combine buckles of commonly used specifications and models, integrating buckles of different specifications into one, avoiding the need to carry multiple buckles of different specifications, reducing the carrying burden of the staff, and improving work efficiency. Attached Figure Description

[0027] Figure 1 This is a structural schematic diagram of the fasteners for the pipe wringer in this application;

[0028] Figure 2 This is a schematic diagram showing the partial explosion structure of the fasteners on a pipe wringer.

[0029] Figure 3 This is a partial sectional view representing the locking structure.

[0030] Explanation of reference numerals in the attached drawings: 1. Connecting part; 2. Buckle body; 21. Slot; 22. First locking slot; 23. Second locking slot; 3. Locking structure; 31. Locking housing; 311. Slide groove; 32. Block; 321. Guide slope; 322. Chamfer; 33. Pressing part; 331. Transition arc; 34. Telescopic rod; 35. Locking spring; 4. Rotating shaft; 41. Fixed anti-detachment block; 42. Adjustable anti-detachment block; 5. Slide rod; 51. Indicator plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figures 1-3 This application will be described in further detail.

[0032] This application discloses a fastener for a pipe wringing machine. It mainly adopts a solution that integrates fasteners of various specifications for easy switching, achieving the effects of portability and improved work efficiency. The following is a further detailed description of this application.

[0033] Reference Figure 1 and Figure 2 The pipe tightening machine's fastener assembly includes a connecting part 1 and multiple fastener bodies 2 of different specifications and sizes. Multiple fastener bodies 2 are movably connected to one end of the connecting part 1. Operators can easily switch between different specifications of fastener bodies 2 according to actual needs, avoiding the hassle of frequent fastener replacements and improving work efficiency. Each fastener body 2 has a groove 21 for clamping drill rods or casings; the groove 21 is recessed. Each fastener body 2 has a first locking groove 22 and a second locking groove 23, and the connecting part 1 has a locking structure 3.

[0034] The contact surface of the buckle body 2 is covered with a carburized hardened layer formed by carburizing treatment, and the depth of the carburized hardened layer is greater than or equal to one-tenth of the thickness of the buckle body 2. Carburizing treatment on the contact surface of the buckle body 2 forms a carburized hardened layer, thereby improving the surface hardness and wear resistance of the buckle body 2, enabling it to better withstand friction and pressure in high-intensity working environments, reducing wear, deformation and breakage, and extending the service life of the buckle body 2.

[0035] Reference Figure 2 and Figure 3The locking structure 3 includes a locking housing 31 fixed to the connecting part 1 and a locking block 32 slidably connected within the locking housing 31. The locking structure 3 can lock the buckle body 2 into its working or non-working state by inserting the locking block 32 into the first locking groove 22 or the second locking groove 23, ensuring that the buckle body 2 is stable and reliable during use and will not shake or interfere with the operation of other buckle bodies 2 when not in use. Specifically, the first locking groove 22 and the second locking groove 23 are set at specific positions on the buckle body 2. When the buckle body 2 is in a straight line with the connecting part 1 during operation, the first locking groove 22 can lock the working state. When the buckle body 2 rotates 90° or other angles to the non-working standby state without interfering with the operation of the buckle body 2 in use, the second locking groove 23 is used for the fixed state.

[0036] The connecting part 1 is connected to the main body of the pipe screwing machine. The drill rod or casing is clamped by the slot 21 on the buckle body 2. Then, the pipe screwing machine is started to drive the buckle body 2 to rotate, thereby realizing the connection and disassembly of the drill rod or casing. The buckle body 2 can be movably connected to one end of the connecting part 1. During operation, the appropriate buckle body 2 can be selected according to the actual required specifications of the drill rod or casing to put it in the working state. Then, the buckle block 32 in the locking structure 3 is inserted into the first locking slot 22 of the buckle body 2 to lock its working state and ensure the stable operation of loading and unloading.

[0037] When it is necessary to change the specification of the fastener 2, disengage the locking block 32 from the first locking slot 22 of the current fastener 2 to release the lock on the fastener 2, rotate the fastener 2 to a non-working standby state, and insert the locking block 32 into the second locking slot 23 of the fastener 2 to fix the state and avoid affecting the operation of other fasteners 2; then select a fastener 2 that meets the requirements, rotate it to the working position, and insert the locking block 32 into its first locking slot 22 to lock it. Workers can freely combine and match the fasteners 2 according to their commonly used specifications and models, integrating them into one unit. When a fastener 2 needs to be replaced, the fastener 2 to be replaced can be quickly replaced through the locking structure 3, thereby greatly reducing the time spent on replacing fasteners and improving work efficiency.

[0038] Specifically, refer to Figure 3A pressing part 33 is slidably connected to the locking housing 31, providing an operating point for the operator. A guide slope 321 is provided on the side of the locking block 32 near the pressing part 33. The guide slope 321 is used to push the locking block 32 out of the first locking groove 22 or the second locking groove 23 when pressed. The guide slope 321 ensures that when the operator presses the pressing part 33, the locking block 32 can smoothly exit from the locking groove. The surface of the guide slope 321 is polished to reduce friction. A telescopic rod 34 is fixed between the locking block 32 and the locking housing 31. A locking spring 35 is sleeved on the outside of the telescopic rod 34. The locking spring 35 is used to push the locking block 32 to maintain the locked state. When the pressing part 33 is not pressed, the locking spring 35 pushes the locking block 32 into the first locking groove 22 or the second locking groove 23, locking the buckle body 2. When the pressing part 33 is pressed, the locking block 32 retracts against the elastic force of the locking spring 35, thereby releasing the lock.

[0039] Reference Figure 3 The locking block 32 has a chamfer 322 on the side near the buckle 2, and the pressing part 33 has a transition arc 331 on the side near the guide slope 321. The chamfer 322 on the locking block 32 makes the locking block 32 smoother when inserted into the locking groove, reducing the possibility of collision and wear. When it is necessary to release the locking state of the buckle 2, the pressing part 33 is pressed down, and the transition arc 331 first contacts the guide slope 321 and produces a smooth guiding effect, making the contact between the pressing part 33 and the guide slope 321 smoother.

[0040] When it is necessary to change the working or non-working state of the buckle body 2, press the pressing part 33 that is slidably connected to the locking housing 31. The pressing part 33 will squeeze the guide slope 321 of the locking block 32 near the pressing part 33. Under the action of the guide slope 321, the locking block 32 is pushed and disengages from the first locking groove 22 or the second locking groove 23. At this time, the buckle body 2 can be rotated or moved. After the buckle body 2 is adjusted, release the pressing part 33. The locking spring 35 pushes the locking block 32 due to the elastic restoring force, so that it re-inserts into the corresponding first locking groove 22 or the second locking groove 23, thereby locking the buckle body 2. The guide slope 321 is used to realize the automatic disengagement of the locking block 32 during the pressing operation, which is convenient and quick to operate and can efficiently change the state of the buckle body 2. The locking spring 35 can keep the locking block 32 stably and reliably locked, ensuring the stability of the buckle body 2 in the working or non-working state, thereby ensuring the normal use of the fasteners on the pipe tightening machine.

[0041] Reference Figure 2 and Figure 3The locking housing 31 is equipped with a rotating shaft 4. The buckle bodies 2 are all sleeved on the outside of the rotating shaft 4 and arranged along the axial direction of the rotating shaft 4. The buckle bodies 2 can rotate flexibly on the rotating shaft 4, which makes it convenient for users to quickly switch between different specifications of buckle bodies 2. The rotating shaft 4 and the locking housing 31 form a separable rotating connection, which allows users to replace the buckle bodies 2 as needed. One end of the rotating shaft 4 is fixed with a fixed anti-detachment block 41, and the other end is threadedly connected with an adjusting anti-detachment block 42. The fixed anti-detachment block 41 and the adjusting anti-detachment block 42 cooperate to restrict the buckle bodies 2 from sliding along the axial direction of the rotating shaft 4.

[0042] Reference Figure 1 and Figure 3 The side of the buckle body 2 facing away from the slot 21 is arranged in an arc shape. In actual use, when it is necessary to switch between different specifications of buckle bodies 2 for clamping drill rods or casings, the arc shape of the side of the buckle body 2 facing away from the slot 21 makes the contact between the arc surface and the surrounding parts smoother and more fluid during the rotation of the buckle body 2 around the rotating axis 4. This reduces the possibility of jamming or interference with the surrounding structure during rotation, and significantly improves the smoothness and convenience of switching buckle bodies 2.

[0043] When a buckle body 2 is damaged or needs to be replaced with a different specification buckle body 2, first unscrew the adjusting anti-slip block 42 from the rotating shaft 4, then remove the rotating shaft 4 from the locking housing 31, remove the buckle body 2 that needs to be replaced, replace it with a new buckle body 2, reinstall the rotating shaft 4, and then tighten the adjusting anti-slip block 42 back onto the rotating shaft 4. The buckle body 2 can then be easily replaced. When installing the buckle body 2, first place multiple buckle bodies 2 sequentially on the outside of the rotating shaft 4. One end of the rotating shaft 4 is already fixed with a fixing anti-slip block 41. Then, install the adjusting anti-slip block 42 onto the rotating shaft 4 from the other end of the rotating shaft 4 using a threaded connection until the adjusting anti-slip block 42 is in tight contact with the buckle body 2.

[0044] Reference Figure 2 and Figure 3 A sliding rod 5 is fixed to the outer wall of the locking block 32. The end of the sliding rod 5 extends to the outside of the locking housing 31 and is fixed with an indicator plate 51. A sliding groove 311 is provided on the side wall of the locking housing 31 along the moving direction of the locking block 32. The sliding rod 5 is slidably connected in the sliding groove 311. The indicator plate 51 is used to display the position of the locking block 32, so that the operator can quickly determine whether the locking block 32 is inserted into the first locking groove 22 or the second locking groove 23. This prevents the locking block 32 from slipping out of the locking groove, reducing potential safety hazards, and ensuring that the locking block 32 can reliably lock the buckle 2 in both working and non-working states.

[0045] The implementation principle of the fastener loading and unloading mechanism for a pipe wringing machine according to this application embodiment is as follows: By integrating multiple fastener bodies 2 of different specifications and sizes onto the connecting part 1, operators no longer need to carry a large number of different fasteners, reducing carrying burden and handling difficulty. Utilizing the locking structure 3 and the locking groove on the fastener body 2, the working and non-working states of the fastener body 2 can be quickly locked and unlocked, greatly reducing the time required for fastener replacement and improving work efficiency. Simultaneously, the movable connection method between the fastener body 2 and the connecting part 1 allows users to flexibly select the appropriate fastener body 2 according to actual needs, enhancing the versatility and practicality of the device.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pipe threading machine tool, characterized by, It includes a connecting part (1) and multiple fasteners (2) of different sizes installed at one end of the connecting part (1). The fasteners (2) are movably connected to one end of the connecting part (1). The fasteners (2) are provided with slots (21) for clamping drill rods or casings. Each fastener (2) is provided with a first locking slot (22) and a second locking slot (23). The connecting part (1) is provided with a locking structure (3). The locking structure (3) includes a locking housing (31) fixed on the connecting part (1) and a locking block (32) slidably connected in the locking housing (31). The locking block (32) can be inserted into the first locking groove (22) or the second locking groove (23) to lock the working state or non-working state of the buckle (2).

2. The fastener for a pipe tightening machine according to claim 1, characterized in that, A pressing part (33) is slidably connected to the locking housing (31), and a guide slope (321) is provided on the side of the locking block (32) near the pressing part (33). The guide slope (321) is used to push the locking block (32) out of the first locking groove (22) or the second locking groove (23) when it is pressed. A telescopic rod (34) is fixed between the locking block (32) and the locking housing (31). A locking spring (35) is sleeved on the outside of the telescopic rod (34). The locking spring (35) is used to push the locking block (32) to maintain the locked state.

3. A fastener for a pipe tightening machine according to claim 2, characterized in that, The card block (32) has a chamfer (322) on the side near the buckle (2), and the pressing part (33) has a transition arc (331) on the side near the guide slope (321).

4. A fastener for a pipe tightening machine according to claim 1, characterized in that, The locking housing (31) is provided with a rotating shaft (4), and the buckles (2) are all sleeved on the outside of the rotating shaft (4) and arranged along the axial direction of the rotating shaft (4). The rotating shaft (4) and the locking housing (31) form a separable rotatable connection.

5. A fastener for a pipe tightening machine according to claim 4, characterized in that, One end of the rotating shaft (4) is fixed with a fixed anti-detachment block (41), and the other end is threaded with an adjusting anti-detachment block (42). The fixed anti-detachment block (41) and the adjusting anti-detachment block (42) cooperate to restrict the buckle body (2) from sliding axially along the rotating shaft (4).

6. A fastener for a pipe tightening machine according to claim 4, characterized in that, The buckle (2) is arranged in an arc shape on the side opposite to the slot (21).

7. A fastener for a pipe tightening machine according to claim 1, characterized in that, A slide rod (5) is fixed to the outer wall of the locking block (32). The end of the slide rod (5) extends to the outside of the locking housing (31) and is fixed with an indicator plate (51). A slide groove (311) is provided on the side wall of the locking housing (31) along the moving direction of the locking block (32). The slide rod (5) is slidably connected in the slide groove (311).

8. A fastener for a pipe tightening machine according to claim 1, characterized in that, The contact surface of the buckle body (2) is provided with a carburized hardened layer formed by carburizing treatment, and the depth of the carburized hardened layer is greater than or equal to one-tenth of the thickness of the buckle body (2).

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