Protective equipment for the movement of mine shaft sinking derricks

Abstract

The present application relates to the technical field of coal mining, and discloses a protection device for shaft sinking headframe movement, which comprises a plurality of pulling assemblies, a plurality of guide assemblies and a plurality of tight pulling assemblies. The plurality of pulling assemblies are respectively connected to the left and right walls of the headframe top crown block platform, and each pulling assembly is distributed at a corner of the crown block platform in one-to-one correspondence. The pulling assembly comprises a pulling rope and a connecting piece for connecting the pulling rope with the crown block platform. The plurality of guide assemblies are respectively connected to the left and right side walls of the headframe lower base, and each guide assembly is distributed at a corner of the headframe lower base in one-to-one correspondence. The guide assembly comprises a guide wheel set for guiding the adjacent corresponding pulling rope and a truss. The truss is connected with the headframe lower base and horizontally extends towards the side away from the headframe at the other end. The guide wheel set is connected with the end away from the headframe, and the end of the pulling rope extends horizontally towards the side close to the headframe through the guide wheel set.

Description

Technical Field

[0001] This invention relates to the field of coal mining technology, and in particular to a protective device for the movement of mine shaft sinkers. Background Technology

[0002] Shaft drilling derricks are crucial equipment for shaft excavation. They primarily suspend drilling equipment such as buckets, ventilation ducts, water pumps, formwork, and the sheave platform system and wire ropes mounted on top of the derrick to ensure the smooth operation of drilling, blasting, slag removal, and support processes. Derricks used during the drilling phase are typically temporary. Currently, common temporary derricks often employ lightweight steel structures, which offer advantages such as disassembly and reuse, lightweight materials, and short construction periods. As the shaft depth changes, the height of the derrick also increases; for example, when the shaft construction depth is 1000m, the temporary derrick may exceed 30m.

[0003] Temporary derricks are usually dismantled after the drilling phase, and a permanent derrick with a heavy steel structure is installed at the drilling location. Since the dismantling of conventional temporary derricks takes a long time on site, this undoubtedly delays the installation of the permanent derrick, resulting in an extended construction period. Therefore, in order to further shorten the overall construction period, after the drilling phase, a sheave and wire rope will be used to pull the hook to the upper part of the derrick. The bottom of the derrick will be moved along the moving track to the other side of the vertical shaft by a mobile device. The mobile device is usually composed of guide rails, cylinders, and traction mechanisms.

[0004] Although the current temporary derrick moves relatively slowly, and the guide rails supporting the derrick are set up strictly according to the levelness requirements, the use of lightweight steel structures for the support structure and connection nodes of the temporary derrick results in a top-heavy situation when supporting the sheave suspension and hook equipment. Even during the smooth movement of the derrick, there will still be some displacement and swaying at the top. Especially when the height of the derrick exceeds 30m, the displacement and swaying at the top of the derrick will intensify. This will undoubtedly cause stress concentration in some steel structures in the upper part of the derrick, especially in the waist area, due to uneven stress. Over time, the steel structure and connection nodes above the waist of the derrick will suffer metal fatigue, causing microscopic phase transformation damage to the material that is not easily detected by quality inspectors, thus threatening the safety of subsequent well drilling operations. Summary of the Invention

[0005] This invention provides a protective device for the movement of mine shaft drilling derricks, which can improve the stability of the derrick movement process.

[0006] This invention provides a protective device for moving a mine shaft drilling derrick, comprising: multiple traction components, multiple guide components, and multiple tensioning components. The multiple traction components are respectively connected to the left and right walls of the top sheave platform of the derrick, and each traction component is distributed correspondingly at each corner of the top sheave platform. Each traction component includes a traction rope and a connector for connecting the traction rope to the top sheave platform. The multiple guide components are respectively connected to the left and right side walls of the lower base of the derrick, and each guide component is distributed correspondingly at each corner of the lower base of the derrick. Each guide component includes a guide wheel assembly for guiding adjacent corresponding traction ropes and a truss. The truss is connected to the lower base of the derrick, and its other end extends horizontally towards the side away from the derrick. The guide wheel assembly is connected to its end away from the derrick. The end of the traction rope extends horizontally towards the side closer to the derrick through the guide wheel assembly. The number and position of the multiple tensioning components correspond one-to-one with the number of traction ropes. Each tensioning component includes a fastening block for fixing the traction rope and a moving part that moves the fastening block towards one side of the derrick.

[0007] Preferably, the connector includes a slewing wheel and a fixing frame, the fixing frame being detachably connected to the side wall of the sheave platform, and the pull rope being wound around the slewing wheel, with both ends extending toward the corresponding lower guide wheel assembly.

[0008] Preferably, the acute angle between the pull rope and the horizontal plane is 60° to 70°.

[0009] Preferably, the guide wheel assembly includes a rotating frame detachably connected to the truss and two guide wheels rotatably connected to the rotating frame. The height of the guide wheel closer to the derrick is higher than the height of the other guide wheel, and the two ends of the pull rope are respectively wound around the corresponding guide wheels.

[0010] Preferably, the fastening block has through holes at both ends of the pull rope, and the pull rope is fixedly connected to the fastening block by bolts and buckles.

[0011] Preferably, the movable part includes: a pull rod and a rotating sleeve. The first end of the pull rod is fixedly connected to the fastening block, and the second end of the pull rod extends horizontally toward one side of the derrick and has an external thread. The rotating sleeve is rotatably connected to the lower base of the derrick. The rotating sleeve has a blind hole at the end corresponding to the pull rod, and the rotating sleeve has an internal thread at the blind hole that is threaded to the external thread. As the rotating sleeve rotates, it drives the pull rod to move horizontally, which is used to tighten or loosen the pulling rope.

[0012] Preferably, the two rotating sleeves on the left are fixedly connected to the two adjacent rotating sleeves on the right. The two pull rods on the left have the same external thread direction, and the two pull rods on the left have the opposite external thread direction to the two pull rods on the right. The two rotating sleeves are driven by the drive unit. As the two rotating sleeves rotate in opposite directions under the drive of the drive unit, each fastening block moves horizontally towards the side closer to or further away from the derrick.

[0013] Preferably, each pull rope has a detachable limiter at the height of the derrick hook near the hook for securing the hook anti-deviation plate.

[0014] Preferably, a slider is fixedly connected to the lower part of the fastening block, and a slide rail is provided on the truss corresponding to the lower part of the fastening block. The fastening block is slidably connected to the truss through the slider.

[0015] Preferably, the lower part of the truss is slidably connected to the guide rail.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention can achieve the effect of all-round reinforcement of the top wheel platform of the derrick through multiple traction components, multiple guide components and multiple tensioning components, so as to make the top of the derrick more stable during the movement of the derrick and avoid the problem of stress concentration in some steel structures due to uneven force at the connection nodes of the waist of the derrick.

[0017] Specifically, after the traction ropes are stably connected at the four corners of the sheave platform, the other end of the traction rope is pre-tensioned towards the outside of the base of the derrick. Guided by the guide wheel assembly, the pre-tensioned traction rope extends horizontally towards the side closest to the derrick. Its end is fixed by the fastening blocks in the tensioning assembly, and further pre-tensioned horizontally by the moving part to ensure that the forces acting on each traction rope are similar, promoting uniform stress on the sheave platform of the derrick. Conversely, this allows for rapid stress release from the traction ropes, facilitating subsequent disassembly. As the derrick moves, the force acting on the sheave platform is transmitted to the traction rope, which provides pre-tensioning force to keep the top of the derrick... The structure tends to stabilize. Specifically, because the derrick provides longitudinal traction, as the fastening blocks gradually approach one side of the derrick, the traction ropes will apply the pre-tensioning force to the top of the derrick. As the pre-tensioning force increases, this force will be evenly transmitted to each steel frame of the derrick in the form of longitudinal force, thereby ensuring the overall stability of the structure. Multiple traction ropes are evenly stressed and can easily withstand the multiple swaying forces of the top sheave platform of the derrick. Therefore, it solves the problem of top displacement and swaying during the movement of the derrick when its height exceeds 30m, improves the stability and service life of the upper part of the derrick, especially the waist and various connection nodes, and ensures the safety of continued use in subsequent well drilling projects. Attached Figure Description

[0018] Figure 1 A schematic diagram of a protective device for moving a mine shaft sinking derrick, provided as an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a protective device for moving a mine shaft sinking derrick, provided as an embodiment of the present invention.

[0020] Figure 3 for Figure 1A magnified view of part A in the middle;

[0021] Figure 4 for Figure 1 A magnified view of part B in the middle section;

[0022] Figure 5 for Figure 1 A magnified view of part C in the middle;

[0023] Figure 6 for Figure 1 A magnified view of part D in the middle;

[0024] Figure 7 A schematic diagram of the structure of a rotary wheel for a protective device used for moving a mine shaft sinking derrick, provided in an embodiment of the present invention;

[0025] Figure 8 A schematic diagram of the structure of a fastening block for a protective device used for moving a mine shaft sinking derrick, provided in an embodiment of the present invention;

[0026] Figure 9 A top-view structural diagram of the drive unit of a protective device for moving a mine shaft sinking derrick, provided in an embodiment of the present invention;

[0027] Figure 10 A schematic diagram of the hoop structure of a protective device for moving a mine shaft sinking derrick, provided in an embodiment of the present invention;

[0028] Figure 11 A schematic diagram of a hook-lock structure for a protective device used for moving a mine shaft sinking derrick, provided in an embodiment of the present invention;

[0029] Figure 12 A schematic diagram of the fastening block structure from the left side of a protective device for moving a mine shaft sinking derrick, provided in an embodiment of the present invention;

[0030] Figure 13 This is a schematic diagram of the rotating seat structure of a protective device for moving a mine shaft sinking derrick, provided as an embodiment of the present invention.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Derrick; 11. Head Sheave Platform; 12. Lower Base; 2. Pulling Assembly; 21. Pulling Rope; 22. Rotating Sheave; 23. Fixing Frame; 3. Guide Assembly; 31. Guide Wheel Group; 311. Rotating Frame; 312. Guide Wheel; 32. Truss; 4. Tensioning Assembly; 41. Fastening Block; 42. Moving Part; 421. Tie Rod; 4211. External Thread; 422. Rotating Sleeve; 4221. Blind Hole; 4222. Internal Thread; 5. Drive Unit; 51. First Bevel Gear; 52. Second Bevel Gear; 53. Transmission Rod; 54. First Gear; 55. Second Gear; 56. Motor; 6. Limiting Component; 61. Clamping Plate; 611. Through Hole; 62. Hook Lock; 63. Rope; 64. Hoop; 7. Rotating Seat. Detailed Implementation

[0033] The following detailed description of a specific embodiment of the present invention is provided in conjunction with the accompanying drawings. However, it should be understood that the scope of protection of the present invention is not limited to the specific embodiment.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the technical solution of this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0035] refer to Figure 1 , Figure 2 and Figure 4This invention provides a protective device for moving a mine shaft drilling headframe 1, comprising: multiple traction components 2, multiple guide components 3, and multiple tensioning components 4. The multiple traction components 2 are respectively connected to the left and right walls of the top sheave platform 11 of the headframe 1, and each traction component 2 is distributed one-to-one at each corner of the sheave platform 11. Each traction component 2 includes a traction rope 21 and a connector for connecting the traction rope 21 to the sheave platform 11. The multiple guide components 3 are respectively connected to the left and right side walls of the lower base 12 of the headframe 1, and each guide component 3 is distributed one-to-one at the lower base 12 of the headframe 1. At each corner, the guide assembly 3 includes a guide wheel group 31 and a truss 32 for guiding the adjacent corresponding pull rope 21. The truss 32 is connected to the lower base 12 of the derrick 1 and the other end extends horizontally toward the side away from the derrick 1. The guide wheel group 31 is connected to its end away from the derrick 1. The end of the pull rope 21 extends horizontally toward the side close to the derrick 1 through the guide wheel group 31. A plurality of tensioning assemblies 4 correspond one-to-one with the number and position of the pull rope 21. The tensioning assembly 4 includes a fastening block 41 for fixing the pull rope 21 and a moving part 42 for driving the fastening block 41 to move toward the side of the derrick 1.

[0036] In the above embodiments, the present invention can achieve the effect of all-round reinforcement of the top wheel platform of the derrick 1 through multiple traction components 2, multiple guide components 3, and multiple tensioning components 4, so that the top of the derrick 1 is more stable during the movement of the derrick 1, and avoids the problem of stress concentration in some steel structures due to uneven force at the connection nodes of the waist of the derrick 1. Specifically, after the traction rope 21 is stably connected at the four corners of the top wheel platform, the other end of the traction rope 21 is inclined to the outside of the lower base 12 of the derrick for pre-tensioning. Under the guidance of the guide wheel group 31, the pre-tensioned traction rope 21 extends horizontally towards the side closer to the derrick 1, and its end is fixed by the fastening block 41 in the tensioning component 4. Under the action of the moving part 42, it is further pre-tensioned in the horizontal direction so that the force of each traction rope 21 is similar, promoting uniform force on the top wheel platform of the derrick 1. Conversely, the traction rope 21 is not tightened. The rapid force release facilitates subsequent disassembly. As the derrick 1 moves, the force exerted by the sheave platform is transmitted to the traction rope 21. The traction rope 21 provides pre-tensioning force to stabilize the top of the derrick 1. Specifically, since the derrick 1 provides longitudinal traction, as the fastening block 41 gradually approaches one side of the derrick 1, the traction rope 21 applies pre-tensioning force to the top of the derrick 1. As the pre-tensioning force increases, this force is evenly transmitted to each steel frame of the derrick 1 in the form of longitudinal force, thereby ensuring the overall stability of the structure. The multiple traction ropes 21 are evenly stressed and can easily withstand the multiple swaying forces of the sheave platform at the top of the derrick 1. Therefore, it solves the problem of top displacement and swaying during movement after the height of the derrick 1 exceeds 30m, improves the stability and service life of the upper part of the derrick 1, especially the waist and other connecting nodes, and ensures the safety of continued use in subsequent well drilling projects.

[0037] refer to Figure 1 , Figure 2 and Figure 3 The connecting component includes a rotary wheel 22 and a fixed frame 23. The fixed frame 23 is detachably connected to the side wall of the sheave platform 11. The pull rope 21 is wound around the rotary wheel 22, and both ends of the rope extend toward the corresponding lower guide wheel group 31.

[0038] In the above embodiments, the rotating wheel 22 and the fixing frame 23, compared with the binding method of the pull rope 21, not only facilitate quick on-site installation and reduce the installation period, but also ensure safety and stability, and avoid errors in the binding process caused by insufficient experience of construction personnel, thus increasing the occurrence of safety accidents.

[0039] refer to Figure 1 , Figure 2 and Figure 3 The acute angle between the pull rope 21 and the horizontal plane is 60° to 70°.

[0040] In the above embodiments, by limiting the acute angle between the pull rope 21 and the horizontal plane to 60° to 70°, the pulling effect of the pull rope 21 on the derrick 1 can be improved while ensuring the actual application range of the site. This also improves the stability of the derrick 1 after the pull rope 21 pulls it obliquely, thereby greatly reducing the problem of top swaying and tilting of the derrick 1 during movement.

[0041] refer to Figure 1 , Figure 2 and Figure 4 The guide wheel assembly 31 includes a rotating frame 311 detachably connected to the truss 32 and two guide wheels 312 rotatably connected to the rotating frame 311. The height of the guide wheel 312 closer to the derrick 1 is higher than the height of the other guide wheel 312. The two ends of the pull rope 21 are respectively wound around the corresponding guide wheel 312.

[0042] In the above embodiments, by limiting the height of the guide wheel 312 on the side closer to the derrick 1 to be higher than the height of the other guide wheel 312, and by winding the two ends of the traction rope 21 around the corresponding guide wheel 312, the traction rope 21 can be guided by the two guide wheels 312 to maintain a parallel state, thereby improving the stability during the traction process.

[0043] refer to Figure 5 , Figure 8 and Figure 12 The fastening block 41 has through holes at both ends of the pull rope 21, and the pull rope 21 is fixedly connected to the fastening block 41 by bolts and buckles.

[0044] In the above embodiments, the traction rope 21 is fixedly connected to the fastening block 41 by a bolt buckle, which is a component in the anchor cable, and can achieve quick disassembly and efficient installation.

[0045] refer to Figure 2 , Figure 5 and Figure 6 The moving part 42 includes a pull rod 421 and a rotating sleeve 422. The first end of the pull rod 421 is fixedly connected to the fastening block 41. The second end of the pull rod 421 extends horizontally toward one side of the derrick 1 and has an external thread 4211. The rotating sleeve 422 is rotatably connected to the lower base 12 of the derrick 1. The rotating sleeve 422 has a blind hole 4221 at the end corresponding to the pull rod 421. The rotating sleeve 422 has an internal thread 4222 at the blind hole 4221 that is threadedly connected to the external thread 4211. As the rotating sleeve 422 rotates, it drives the pull rod 421 to move horizontally, which is used to tighten or loosen the pulling rope 21.

[0046] In the above embodiments, the rotating sleeve 422 rotates under the action of external driving force, and the horizontal displacement of the fastening block 41 is achieved by utilizing the threaded engagement between its internal thread 4222 and the pull rod 421. A slider is fixedly connected to the lower part of the fastening block 41, and a slide rail is provided on the truss 32 corresponding to the lower part of the fastening block 41. The fastening block 41 is slidably connected to the truss 32 through the slider.

[0047] Specifically, the slider is T-shaped, which can limit the movement of the fastening block 41 during sliding, preventing it from rotating or shifting during the sliding process.

[0048] refer to Figure 2 , Figure 6 and Figure 9 The two rotating sleeves 422 on the left are fixedly connected to the two adjacent rotating sleeves 422 on the right. The two pull rods 421 on the left have the same external thread 4211. The external thread 4211 on the left has the opposite thread direction to the external thread 4211 on the right. The two rotating sleeves 422 are driven by the drive unit 5. As the two rotating sleeves 422 rotate in opposite directions under the drive of the drive unit 5, each fastening block 41 moves horizontally towards the side closer to or away from the derrick 1.

[0049] In the above embodiments, by defining that the two rotating sleeves 422 on the left are fixedly connected to the two adjacent rotating sleeves 422 on the right, and the external threads 4211 of the two pull rods 421 on the left have the same rotation direction, and the external threads 4211 of the two pull rods 421 on the left have the opposite rotation direction to the external threads 4211 of the two pull rods 421 on the right, on the basis of ensuring that the process installation dimensions and other parameters meet the standards, it is possible to drive one rotating sleeve 422 to rotate while the other fixed rotating sleeve 422 rotates at the same time, thereby synchronously driving the two coaxial pull rods 421 to move horizontally in the direction of approaching or moving away from each other, thereby driving the corresponding fastening block 41 to move, thus achieving the effect of synchronously tightening or loosening the traction rope 21, making it more convenient for field application.

[0050] refer to Figure 1 Each pull rope 21 has a detachable limiter 6 at the height of the hook of the derrick 1 for fastening the hook anti-deviation plate.

[0051] In the above embodiments, the limiting member 6 can limit the hook so that the inertial force carried by the hook after it swings during the movement of the derrick 1 can be reduced, thereby further improving the stable movement of the derrick 1.

[0052] refer to Figure 2 and Figure 4 The lower part of truss 32 is slidably connected to the guide rail.

[0053] In the above embodiments, by limiting the lower part of the truss 32 to slide with the guide rail, the stability and smoothness of the overall truss 32 during displacement can be improved.

[0054] To ensure the stability of the traction and limiting derrick 1, the traction ropes are all thickened or combined steel wire ropes made of multiple steel wire ropes twisted together.

[0055] refer to Figure 1 , Figure 10 and Figure 11 The limiting component 6 includes four locking plates 61. Each locking plate 61 has two inclined through holes 611 corresponding to the traction rope 21, allowing the end of the traction rope 21 to pass through. During installation, after the wire rope and other components are installed, the locking plates 61 are locked onto the traction rope. The locking plates 61 are two plates joined together in the middle. After being rotated and joined, they are fixed by locking or clamping devices. After being joined, they have the effect of locking and clamping with the wire rope. Specifically, a hook lock 62 is fixedly connected to one side of the locking plate 61. The limiting component 6 also includes two ropes 63, which can be steel The rope can also be a common hemp rope. The two ends of the rope body 63 are hooked and connected to the left and right hook locks 62 respectively. The rope body 63 is kept taut. Hook locks 62 are provided in the middle between the two parallel rope bodies 63. The limiting member 6 also includes a hoop 64 for mounting the limiting hook. The hoop 64 is a front and rear detachable structure. The front and rear of the hoop 64 are respectively hooked to the left and right horizontally extending rope bodies 63 by the rope body 63. This can ensure the effect of limiting the hook that is easy to shake, avoid its swaying and vibration when moving, and greatly improve the stability of the derrick 1 when moving.

[0056] refer to Figure 1 , Figure 2 and Figure 6 The middle part of the tie rod 421 is connected to the lower base 12 of the derrick 1 through multiple sliding frames that support its horizontal sliding. The sliding frame includes an annular sleeve and is equipped with oil film balls, etc., which can ensure the stability of the horizontal displacement of the tie rod 421.

[0057] refer to Figure 1 , Figure 6 and Figure 13 For the two sets of rotating sleeves 422, rotating seats 7 are fitted on both sides. The rotating seat 7 includes an annular sleeve with ball bearings inside, which can support the rotating sleeve 422 and support its rotation. The lower end of the rotating seat 7 is fixedly connected to the lower base 12 of the derrick 1 by bolts.

[0058] refer to Figure 2 and Figure 4 The truss 32 and the lower base 12 are detachably connected by multiple bolts, and the fixing frame 23 is detachably connected to the side wall of the top wheel platform 11 of the derrick 1 by multiple bolts, which can facilitate quick modular assembly and disassembly.

[0059] refer to Figure 12 To improve the synchronization between the two fastening blocks 41 on the left and the two fastening blocks 41 on the right, the two fastening blocks 41 on the left and the two fastening blocks 41 on the right are fixed by connecting rods. Specifically, flanges are welded to the two ends of the connecting rods, and the flanges are detachably connected to the inner wall of the fastening blocks 41 by multiple bolts. This can improve the stability of the pulling rope 21, and at the same time facilitate disassembly and modular application, which is very convenient.

[0060] refer to Figure 1 , Figure 6 and Figure 9 The drive unit 5 includes two first bevel gears 51, which are fixedly sleeved at the middle position of the two rotating sleeves 422. The tooth surfaces of the two first bevel gears 51 extend in opposite directions. It also includes two second bevel gears 52, a transmission rod 53, a first gear 54, and a second gear 55. The two second bevel gears 52 mesh with the two first bevel gears 51 respectively. The two ends of the transmission rod 53 are fixedly connected to the two second bevel gears 52 respectively. The middle part of the transmission rod 53 is supported by a rotating support to prevent uneven stress during rotation. The first gear 54 is sleeved and fixedly connected to the transmission rod 53. The second gear 55 meshes with the first gear 54. The second gear 55 is connected to the output end of the motor 56 through a fixed axle. The axle of the second gear 55 is connected via... The support box base rotates and supports, and the transmission rod 53 passes through the support box base. Driven by the motor 56, the transmission rod 53 can be rotated through the meshing of the second gear 55 and the first gear 54. The rotation of the transmission rod 53 can achieve synchronous and unidirectional rotation of the two rotating sleeves 422 through the meshing of the second bevel gear 52 and the first bevel gear 51. This allows each tie rod 421 to move synchronously toward or away from the derrick 1, thus achieving a synchronous pulling effect on the traction rope 21. Not only is the pulling effect better, but also, based on the precise setting of the traction rope 21, the synchronous pulling of the traction rope 21 can achieve the effect of balancing the pulling force, making the top of the derrick 1 more stable and minimizing damage to the steel structure of the derrick 1.

[0061] Working principle: Before the derrick 1 moves, the output shaft of the control motor 56 is driven to rotate. With the drive of the motor 56, the rotation of the transmission rod 53 is driven by the meshing of the second gear 55 and the first gear 54. The rotation of the transmission rod 53 can achieve synchronous and unidirectional rotation of the two rotating sleeves 422 through the meshing of the second bevel gear 52 and the first bevel gear 51. This causes each tie rod 421 to move synchronously toward or away from the derrick 1, thus achieving the effect of synchronously pulling each traction rope 21. Moreover, the overall structure of this protective equipment is mostly modular and detachable, which is convenient for installation and disassembly. While ensuring the construction period, it greatly improves the stability of the derrick 1 structure itself, which is conducive to its sustainable use in the future and extends the service life of the steel frame and connection nodes in the derrick 1.

[0062] The above-disclosed embodiments are merely a few specific examples of the present invention. However, the embodiments of the present invention are not limited thereto, and any variations that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A protection device for the movement of a mine sinking derrick, characterised in that, The utility model relates to a kind of well drilling rig, including: Multiple pulling components are respectively connected to the left and right walls of the top crown block platform of derrick, and each of the pulling components is distributed in each corner of the crown block platform, the pulling component includes pulling rope and the connecting piece for connecting the pulling rope with the crown block platform; Multiple guide components are respectively connected to the left and right side walls of the lower base of derrick, and each of the guide components is distributed in each corner of the lower base of derrick, the guide component includes guide wheel set for guiding adjacent corresponding pulling rope and truss, the truss is connected with the lower base of derrick and the other end extends horizontally towards the side away from the derrick, the guide wheel set is connected with the end away from the derrick, and the end of the pulling rope extends horizontally towards the side close to the derrick through the guide wheel set; Multiple tight components correspond to the number and position of the pulling rope, the tight component includes fastening block for fixing the pulling rope and moving part for moving the fastening block towards the side of the derrick, the connecting piece includes rotating wheel and fixed frame, the fixed frame is detachably connected with the side wall of the crown block platform, and the pulling rope is wound around the rotating wheel, and both ends thereof extend towards the side of the corresponding lower guide wheel set. The moving part includes: A pull rod is fixedly connected to the first end of the fastening block, the second end of the pull rod extends horizontally towards the side of the derrick, and the second end is provided with external threads; A rotating sleeve is rotatably connected to the lower base of the derrick, the rotating sleeve is provided with a blind hole corresponding to the end of the pull rod, the rotating sleeve is provided with internal threads at the position of the blind hole, the internal threads are threadedly connected with the external threads, the rotating sleeve rotates to drive the pull rod to move along the horizontal direction, thereby tightening or loosening the pulling rope, the two rotating sleeves on the left side are fixedly connected with the two adjacent rotating sleeves on the right side, the external threads of the two pull rods on the left side have the same rotation direction, and the external threads of the two pull rods on the left side have opposite rotation directions with the external threads of the two pull rods on the right side, the two rotating sleeves are driven by the driving part to rotate in opposite directions, so that the fastening blocks move horizontally towards or away from the derrick.

2. A protection device for the movement of a mine shaft sinking headframe as claimed in claim 1, characterized in that, The acute angle between the pulling rope and the horizontal plane is 60° to 70°.

3. A guard device for the movement of a mine sinking headframe as claimed in claim 2, characterized in that, The guide wheel set includes a rotating frame detachably connected with the truss and two guide wheels rotatably connected with the rotating frame, the height of the guide wheel close to the derrick is higher than that of the other guide wheel, and the two ends of the pulling rope are wound around the corresponding guide wheels.

4. A guard device for the movement of a mine sinking headframe as claimed in claim 3, characterized in that, The fastening block is provided with a through hole corresponding to the size of the two ends of the pulling rope, and the pulling rope is fixedly connected with the fastening block by a bolt and a buckle.

5. A protection device for the movement of a mine shaft sinking headframe as claimed in claim 1, characterized in that, A limiting piece for fastening the hook preventer bias plate is detachably connected to the height close to the hook of each pulling rope.

6. A guard device for the movement of a mine sinking headframe as claimed in claim 1, characterized in that, A sliding block is fixedly connected below the fastening block, the truss is provided with a sliding rail corresponding to the lower part of the fastening block, and the fastening block is slidingly connected with the truss through the sliding block.

7. A protection device for the movement of a mine shaft sinking headframe as claimed in claim 1, characterized in that, The lower part of the truss is slidingly connected with the guide rail.

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