Protective equipment for moving mine shaft sinking derrick

Abstract

The invention relates to the technical field of coal mining, and discloses a protective device for movement of a mine shaft sinking derrick, which comprises a plurality of traction assemblies, a plurality of guide assemblies and a plurality of tensioning assemblies, the plurality of traction assemblies are respectively connected to the left wall and the right wall of a head sheave platform at the top of the derrick; the traction assemblies are distributed at the corners of the head sheave platform in a one-to-one correspondence mode, each traction assembly comprises a traction rope and a connecting piece used for connecting the traction rope with the head sheave platform, the multiple guide assemblies are connected to the left side wall and the right side wall of the derrick lower base respectively, and the guide assemblies are distributed at the corners of the derrick lower base in a one-to-one correspondence mode. The guide assembly comprises a guide wheel set used for guiding the adjacent corresponding traction rope and a truss, the truss is connected with the derrick lower base, the other end of the truss horizontally extends towards the side away from the derrick, the guide wheel set is connected with the end, away from the derrick, of the truss, and the end of the traction rope horizontally extends towards the side close to the derrick through the guide wheel set.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mining, in particular to a protective device for moving a mine shaft frame. Background Art

[0002] The vertical shaft drilling derrick is an important equipment for wellbore drilling. It is mainly responsible for suspending drilling equipment such as buckets, air ducts, water pumps, templates, and the overhead platform system and wire ropes set up on the top of the derrick to ensure the smooth progress of rock drilling, blasting, slag removal, support and other processes. The derrick in the drilling stage is usually a temporary derrick. The current common temporary derricks usually adopt light steel structures, which have the advantages of detachable and reusable, light material, and short construction period. As the depth of the wellbore changes, the height of the derrick will also increase. Even when the wellbore construction depth is 1000m, the temporary derrick will exceed 30m.

[0003] Temporary derricks are usually dismantled after the well-sinking phase, and a permanent derrick with a heavy steel structure is set up at the well-sinking location. Since the conventional temporary derricks take a long time to dismantle on site, this undoubtedly delays the establishment of the permanent derrick, resulting in an extension of the construction period. Therefore, in order to further shorten the overall construction period, after the well-sinking phase, a large hook will be pulled to the top of the derrick using a sheave and a wire rope. The bottom of the derrick will use a mobile device to drive the temporary derrick to move along the moving track as a whole to the other side of the vertical shaft. The mobile device is usually composed of components such as guide rails, cylinders, and traction mechanisms.

[0004] Although the current temporary derrick moves relatively slowly and the guide rails supporting the movement of the derrick are strictly set up according to the horizontality requirements, for the temporary derrick with light steel structure as the support structure and connection nodes, the derrick will be top-heavy when carrying the counterweights such as the sheave suspension and hook equipment. Even when the derrick moves smoothly, the top of the derrick will still deflect and shake. Especially when the height of the derrick exceeds 30m, the degree of deflection and shaking of the top of the derrick will increase. This will undoubtedly cause the upper half of the derrick, especially the waist connection nodes, to suffer from uneven force, causing stress concentration in some steel structures. Over time, the steel structure and connection nodes above the waist of the derrick will suffer from metal fatigue, resulting in microscopic phase change damage of the material that is not easy to be discovered by quality inspectors, thereby threatening the safety of subsequent well drilling projects. Summary of the Invention

[0005] The present invention provides a protective device for moving a mine shaft drilling derrick, which can improve the stability of the derrick during movement.

[0006] The present invention provides a protective device for moving a mine drilling derrick, comprising: a plurality of pulling assemblies, a plurality of guide assemblies, and a plurality of tensioning assemblies, the plurality of pulling assemblies are respectively connected to the left and right walls of a sheave platform at the top of the derrick, and the respective pulling assemblies are distributed one-to-one at each corner of the sheave platform, the pulling assembly comprises a pulling rope and a connecting piece for connecting the pulling rope to the sheave platform, the plurality of guide assemblies are respectively connected to the left and right side walls of a base under the derrick, and the respective guide assemblies are distributed one-to-one at each corner of the base under the derrick, the guide assembly comprises a guide wheel group and a truss for guiding adjacent corresponding pulling ropes, the truss is connected to the base under the derrick and the other end extends horizontally toward a side away from the derrick, the guide wheel group is connected to its end away from the derrick, the end of the pulling rope extends horizontally toward a side close to the derrick through the guide wheel group, the plurality of tensioning assemblies correspond one-to-one to the number and position of the pulling ropes, the tensioning assembly comprises a fastening block for fixing the pulling rope and a moving part that drives the fastening block to move toward one side of the derrick.

[0007] Preferably, the connecting member includes a slewing wheel and a fixing frame, the fixing frame is detachably connected to the side wall of the overhead sheave platform, the pulling rope is wound around the slewing wheel, and both ends thereof extend toward one side of the corresponding lower guide wheel group.

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

[0009] Preferably, the guide wheel group 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 close to the side of the derrick is higher than the height of the other guide wheel, and the two ends of the pulling rope are respectively wrapped around the corresponding guide wheels.

[0010] Preferably, the fastening block is provided with through holes corresponding to the sizes of the two ends of the pulling rope, and the pulling rope is fixedly connected to the fastening block through a bolt buckle.

[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, the second end of the pull rod extends horizontally toward one side of the derrick, and the second end is provided with an external thread. The rotating sleeve is rotatably connected to the base under the derrick. The rotating sleeve is provided with a blind hole at the end corresponding to the pull rod, and the rotating sleeve is provided with an internal thread connected to the external thread at the outside of the blind hole. As the rotating sleeve rotates, the pull rod is driven to move in the horizontal direction, which is used to tighten or loosen the pulling rope.

[0012] Preferably, the two rotating sleeves on the left are respectively fixedly connected to the two adjacent rotating sleeves on the right, the external threads of the two pull rods on the left have the same rotation direction, and the external threads of the two pull rods on the left are opposite to the rotation direction of the external threads of the two pull rods on the right. The two rotating sleeves are driven by the driving part, and as the two rotating sleeves rotate in opposite directions under the driving action of the driving part, each fastening block moves horizontally synchronously toward or away from the side of the derrick.

[0013] Preferably, each pulling rope is detachably connected to a limiting piece for fastening a deflection plate of a hook preventer thereof at a height close to the derrick hook.

[0014] Preferably, a slider is fixedly connected to the bottom of the fastening block, and a slide rail is provided below the truss corresponding to the fastening block, and the fastening block is slidably connected to the truss via the slider.

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

[0016] Compared with the prior art, the beneficial effect of the present invention is that the present invention can achieve the effect of all-round reinforcement of the sheave platform at the top of the derrick through multiple pulling components, multiple guiding components, and multiple tensioning components, so that the upper top of the derrick is more stable during the movement of the derrick, and avoids the problem of stress concentration in some steel structures due to uneven force at the connection nodes at the waist of the derrick.

[0017] Specifically, after the pulling rope is stably connected at the four corners of the sheave platform, the other end of the pulling rope is tilted toward the outer side of the lower base of the derrick for pre-tightening and traction. The pre-tightened pulling rope extends horizontally toward the side close to the derrick under the guidance of the guide wheel group, and its end is fixed by the fastening block in the tensioning assembly. Under the action of the moving part, it is further pre-tightened in the horizontal direction to make the forces acting on each pulling rope similar, thereby promoting uniform force on the sheave platform of the derrick. Conversely, the pulling rope can quickly release the force, which is beneficial to subsequent disassembly. As the derrick moves, the force applied by the sheave platform will be transmitted to the pulling rope, which will provide pre-tightening pulling force to make the top of the derrick Specifically, since the derrick provides longitudinal traction, as the fastening block gradually approaches one side of the derrick, the pulling rope will apply a pulling pre-tightening force to the top of the derrick. As the pre-tightening force increases, the force will be evenly transmitted to the various steel frames of the derrick in the form of longitudinal force, thereby ensuring the stability of the entire structure. Multiple pulling ropes are evenly stressed and can easily withstand multiple deflection forces of the sheave platform on the top of the derrick. Therefore, the problem of the top of the derrick appearing to deviate and shake during movement when the height exceeds 30m is solved, the stability and service life of the connection nodes in the upper half of the derrick, especially the waist, are improved, and the safety of the subsequent well drilling project is guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a protective device for moving a mine shaft derrick provided by an embodiment of the present invention; Figure 2 A schematic diagram of a partial structure of a protective device for moving a mine shaft derrick provided by an embodiment of the present invention; Figure 3 for Figure 1 A partial enlarged view of part A; Figure 4 for Figure 1 A partial enlarged view of part B; Figure 5 for Figure 1 A partial enlarged view of part C in the middle; Figure 6 for Figure 1 A partial enlarged view of part D in the middle; Figure 7 A schematic structural diagram of a rotary wheel of a protective device for moving a mine shaft derrick provided by an embodiment of the present invention; Figure 8 A schematic structural diagram of a fastening block for a protective device for movement of a mine shaft derrick provided by an embodiment of the present invention; Figure 9 A schematic diagram of the structure of a driving portion from a top view of a protective device for moving a mine shaft derrick provided by an embodiment of the present invention; Figure 10 A schematic diagram of the structure of a hoop from a top view of a protective device for the movement of a mine shaft derrick provided by an embodiment of the present invention; Figure 11 A schematic diagram of a hook lock structure of a protective device for movement of a mine shaft derrick provided by an embodiment of the present invention; Figure 12 A schematic diagram of the structure of a fastening block from a left side perspective of a protective device for movement of a mine shaft derrick provided by an embodiment of the present invention; Figure 13 A schematic diagram of the structure of a rotating seat of a protective device for moving a mine shaft derrick provided in an embodiment of the present invention.

[0019] Description of reference numerals: 1. Derrick; 11. Sheave platform; 12. Lower base; 2. Pulling assembly; 21. Pulling rope; 22. Slewing wheel; 23. Fixed 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. Pull rod; 4211. External thread; 422. Rotating sleeve; 4221. Blind hole; 4222. Internal thread; 5. Driving part; 51. First bevel gear; 52. Second bevel gear; 53. Transmission rod; 54. First gear; 55. Second gear; 56. Motor; 6. Limiting member; 61. Clamp; 611. Perforation; 62. Hook lock; 63. Rope body; 64. Hoop; 7. Rotating seat. DETAILED DESCRIPTION

[0020] A specific embodiment of the present invention is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solutions of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0022] refer to Figure 1 、 Figure 2 and Figure 4 The present invention provides a protective device for the movement of a mine drilling derrick 1, comprising: a plurality of pulling assemblies 2, a plurality of guide assemblies 3, and a plurality of tensioning assemblies 4. The plurality of pulling assemblies 2 are respectively connected to the left and right walls of the sheave platform 11 at the top of the derrick 1, and the pulling assemblies 2 are distributed one by one at each corner of the sheave platform 11. The pulling assemblies 2 include a pulling rope 21 and a connector for connecting the pulling rope 21 to the sheave platform 11. The plurality of guide assemblies 3 are respectively connected to the left and right side walls of the lower base 12 of the derrick 1, and the guide assemblies 3 are distributed one by one at the lower base 12 of the derrick 1. At each corner, the guide assembly 3 includes a guide wheel group 31 and a truss 32 for guiding the corresponding pulling 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, and the end of the pulling rope 21 extends horizontally toward the side close to the derrick 1 through the guide wheel group 31. The number and position of multiple tensioning assemblies 4 correspond one to one to the pulling rope 21. The tensioning assembly 4 includes a fastening block 41 for fixing the pulling rope 21 and a moving part 42 for driving the fastening block 41 to move toward the side of the derrick 1.

[0023] In the above embodiments, the present invention can achieve the effect of all-round reinforcement of the sheave platform on the top of the derrick 1 through multiple pulling components 2, multiple guide components 3, and multiple tensioning components 4, so as to make the upper top of the derrick 1 more stable during the movement of the derrick 1, and avoid the problem of stress concentration of some steel structures due to uneven force at the connection nodes at the waist of the derrick 1. Specifically, after the pulling rope 21 is stably connected at the four corners of the sheave platform, the other end of the pulling rope 21 is tilted toward the outside of the lower base 12 of the derrick for pre-tightening and pulling. The pre-tightened pulling rope 21 extends horizontally toward the side close to the derrick 1 under the guidance of the guide wheel group 31, and its end is fixed by the fastening block 41 in the tensioning component 4, and is further pre-tightened in the horizontal direction under the action of the moving part 42, so that the acting forces of each pulling rope 21 are similar, thereby promoting uniform force on the sheave platform of the derrick 1. Otherwise, the pulling rope 21 is achieved. The effect of rapid force release is conducive to subsequent disassembly. As the derrick 1 moves, the force applied by the sheave platform will be transmitted to the traction rope 21, which will provide a pre-tightening pulling 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 will apply the pulling pre-tightening force to the top of the derrick 1. As the pre-tightening force increases, the force will be evenly transmitted to the various steel frames of the derrick 1 in the form of longitudinal force, thereby ensuring the overall stability of the structure. Multiple traction ropes 21 are evenly stressed and can easily withstand multiple deflection forces of the sheave platform on the top of the derrick 1. Therefore, the problem of the top of the derrick 1 shifting and shaking during movement after the height exceeds 30m is solved, and the stability and service life of the connection nodes of the upper half of the derrick 1, especially the waist, are improved, thereby ensuring the safety of continued use in subsequent well drilling projects.

[0024] refer to Figure 1 、 Figure 2 and Figure 3 The connecting member includes a rotating wheel 22 and a fixing frame 23. The fixing frame 23 is detachably connected to the side wall of the overhead sheave platform 11. The pulling rope 21 is wrapped around the rotating wheel 22, and its two ends extend toward the corresponding lower guide wheel group 31.

[0025] In the above embodiment, the provision of the rotating wheel 22 and the fixing frame 23, compared with the bundling method of the pulling rope 21, not only can it facilitate quick installation on site and reduce the installation period, but it can also ensure safety and stability, and avoid errors in the bundling process caused by insufficient experience of construction workers, thereby increasing the occurrence of safety accidents.

[0026] refer to Figure 1 、 Figure 2 and Figure 3 The acute angle between the pulling rope 21 and the horizontal plane is 60° to 70°.

[0027] In the above embodiment, by limiting the acute angle between the pulling rope 21 and the horizontal plane to 60° to 70°, it is possible to ensure the actual application range of the site, improve the pulling effect of the pulling rope 21 on the derrick 1, and improve the stability of the derrick 1 after the pulling rope 21 obliquely pulls it, thereby greatly reducing the problem of top shaking and swinging of the derrick 1 during movement.

[0028] refer to Figure 1 、 Figure 2 and Figure 4 The guide wheel group 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 guide wheel 312 close to the side of the derrick 1 is higher than the other guide wheel 312. The two ends of the pulling rope 21 are respectively wrapped around the corresponding guide wheels 312.

[0029] In the above embodiment, by limiting the height of the guide wheel 312 on one side close to the derrick 1 to be higher than the height of the other guide wheel 312, the two ends of the pulling rope 21 are respectively wound around the corresponding guide wheels 312, so that the pulling rope 21 can maintain a parallel state after being guided by the two guide wheels 312, thereby improving the stability during the pulling process.

[0030] refer to Figure 5 、 Figure 8 and Figure 12 The fastening block 41 is provided with through holes corresponding to the sizes of the two ends of the pulling rope 21, and the pulling rope 21 is fixedly connected to the fastening block 41 through a bolt buckle.

[0031] In the above embodiment, the pulling rope 21 is fixedly connected to the fastening block 41 through a bolt buckle. The bolt buckle is, for example, a component in an anchor cable, which can achieve the effects of quick release and efficient installation.

[0032] refer to Figure 2 、 Figure 5 and Figure 6 The movable 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 the second end is provided with an external thread 4211. The rotating sleeve 422 is rotatably connected to the lower base 12 of the derrick 1. The rotating sleeve 422 is provided with a blind hole 4221 at the end corresponding to the pull rod 421. The rotating sleeve 422 is provided with an internal thread 4222 threadedly connected to the external thread 4211 at the blind hole 4221. As the rotating sleeve 422 rotates, the pull rod 421 is driven to move in the horizontal direction, which is used to tighten or loosen the pulling rope 21.

[0033] In the above embodiment, the rotating sleeve 422 rotates under the action of the external driving force, and the threaded fit between its internal thread 4222 and the pull rod 421 is utilized to realize the horizontal displacement of the fastening block 41. A slider is fixedly connected to the bottom of the fastening block 41, and a slide rail is provided below the truss 32 corresponding to the fastening block 41. The fastening block 41 is slidably connected to the truss 32 through the slider.

[0034] Specifically, the slider is T-shaped, and when sliding, it can limit the fastening block 41 to prevent it from rotating and deviating during the sliding process.

[0035] refer to Figure 2 、 Figure 6 and Figure 9 The two rotating sleeves 422 on the left are respectively fixedly connected to the two adjacent rotating sleeves 422 on the right. 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 are opposite to the rotation direction of the external threads 4211 of the two pull rods 421 on the right. The two rotating sleeves 422 are driven by the driving part 5. As the two rotating sleeves 422 rotate in opposite directions under the driving action of the driving part 5, each fastening block 41 is synchronously moved horizontally toward or away from one side of the derrick 1.

[0036] In the above embodiment, by limiting the two rotating sleeves 422 on the left side to be fixedly connected with the two adjacent rotating sleeves 422 on the right side, the external threads 4211 of the two pull rods 421 on the left side have the same rotation direction, and the external threads 4211 of the two pull rods 421 on the left side are opposite to the rotation direction of the external threads 4211 of the two pull rods 421 on the right side. On the basis of ensuring that various parameters such as the process installation size and length meet the standards, it can be achieved that when one of the rotating sleeves 422 is driven to rotate, 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, thereby achieving the effect of synchronously tightening or loosening the pulling rope 21, so that it is more convenient to use on site.

[0037] refer to Figure 1 Each pulling rope 21 is detachably connected to a limiter 6 for fastening the hook preventer deflection plate at a height close to the hook of the derrick 1.

[0038] In the above embodiment, the limiting member 6 is provided to limit the hook so as to reduce the inertial force carried by the hook after the hook swings during the movement of the derrick 1, thereby further improving the stable movement of the derrick 1.

[0039] refer to Figure 2 and Figure 4 , the lower part of the truss 32 is slidably connected to the guide rail.

[0040] In the above embodiment, by limiting the lower portion of the truss 32 to be in sliding connection with the guide rail, the stability and smoothness of the entire truss 32 during displacement can be improved.

[0041] In order to ensure the stability of the pulling and limiting derrick 1, the traction ropes are all thickened or combined steel wire ropes with a twisting process of multiple steel wire ropes.

[0042] refer to Figure 1 、 Figure 10 and Figure 11 The limiter 6 includes four card plates 61, each of which has two inclined through-holes 611 corresponding to the pulling rope 21, so that the end of the pulling rope 21 can pass through. During installation, after the steel wire rope and other components are installed, the card plates 61 are correspondingly connected and fixed to the traction rope. The card plate 61 is a plate body spliced ​​in the middle. When rotated and spliced, it is fixed by a card or a lock. After splicing, it has the effect of being clamped and locked with the steel wire rope. Specifically, one side of the card plate 61 is fixedly connected with a hook lock 62. The limiter 6 also includes two rope bodies 63, which can be steel. The wire rope can also be a common hemp rope. The two ends of the rope body 63 are respectively hooked and connected to the left and right hook locks 62. The rope body 63 is kept taut. A hook lock 62 is provided in the middle between the two parallel rope bodies 63. The limiting member 6 also includes a hoop 64 for mounting a limiting hook. The hoop 64 is a front and rear detachable structure, and the front and rear of the hoop 64 are respectively hung through the rope body 63 and the hook locks 62 of the left and right horizontally extending rope bodies 63, which can ensure the effect of limiting the hook that is easy to shake, avoid its swaying and vibration during movement, and greatly improve the stability of the derrick 1 during movement.

[0043] refer to Figure 1 、 Figure 2 and Figure 6 The middle part of the pull 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 with oil film balls arranged inside, which can ensure the smoothness of the horizontal displacement of the pull rod 421.

[0044] refer to Figure 1 、 Figure 6 and Figure 13 For the combination of two sets of rotating sleeves 422, a rotating seat 7 is provided on both sides. The rotating seat 7 includes an annular sleeve with a ball bearing arranged inside, which can play a beneficial role in supporting the rotating sleeve 422 combination and supporting rotation. The lower end of the rotating seat 7 is fixedly connected to the lower base 12 of the derrick 1 by bolts.

[0045] refer to Figure 2 and Figure 4 The truss 32 is detachably connected to the lower base 12 by a plurality of bolts, and the fixing frame 23 is detachably connected to the side wall of the sheave platform 11 at the top of the derrick 1 by a plurality of bolts, which can facilitate rapid modular disassembly and assembly.

[0046] refer to Figure 12 In order 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 at both ends of the connecting rods, and the flanges are detachably connected to the inner walls of the fastening blocks 41 through multiple bolts, which can improve the stability of the pulling rope 21 and facilitate disassembly and assembly and modular application, which is very convenient.

[0047] refer to Figure 1 、 Figure 6 and Figure 9 The driving part 5 includes two first bevel gears 51, which are fixedly sleeved on 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 are respectively meshed with the two first bevel gears 51. The two ends of the transmission rod 53 are respectively fixedly connected to the two second bevel gears 52. 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 is meshed with the first gear 54. The second gear 55 is connected to the output end of the motor 56 through a wheel shaft fixed thereto. The wheel shaft of the second gear 55 is connected to the output end of the motor 56 through The support box seat is rotated and supported, and the transmission rod 53 passes through the support box seat accordingly; as the motor 56 is driven, the transmission rod 53 can be driven to rotate by the engagement of the second gear 55 with the first gear 54, and the rotation of the transmission rod 53 can realize the synchronous and unidirectional rotation of the two rotating sleeves 422 combination through the engagement of the second bevel gear 52 with the first bevel gear 51, so that each pull rod 421 is synchronously displaced toward or away from the side of the derrick 1, thereby realizing a synchronous pulling effect on the pulling rope 21, which not only has a better pulling effect, but also can achieve the effect of pulling force balance by synchronously pulling the pulling rope 21 on the basis of accurately setting up the pulling rope 21, so that the top of the derrick 1 is more stable, and the damage to the steel structure of the derrick 1 is minimized.

[0048] Working principle: Before the derrick 1 moves, the output shaft of the control motor 56 is driven to rotate. As the motor 56 is driven, the transmission rod 53 can be driven to rotate by the meshing of the second gear 55 and the first gear 54. The rotation of the transmission rod 53 can realize the 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, so that each pull rod 421 is synchronously displaced toward or away from the side of the derrick 1, thereby achieving the effect of synchronous pulling of each pulling rope 21. The overall structure of this protective equipment is mostly modular and detachable, which is easy to install and disassemble. While ensuring the construction period, it greatly improves the stability of the derrick 1 structure itself, is conducive to subsequent sustainable use, and improves the service life of the steel frame and connection nodes in the derrick 1.

[0049] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.

Claims

1. A protective device for the movement of a mine shaft frame, characterized in that: include: Multiple pulling assemblies are respectively connected to the left and right walls of the sheave platform at the top of the derrick, and each of the pulling assemblies is distributed one by one at each corner of the sheave platform. The pulling assemblies include pulling ropes and connectors for connecting the pulling ropes to the sheave platform; Multiple guide assemblies are respectively connected to the left and right side walls of the base under the derrick, and each guide assembly is distributed one by one at each corner of the base under the derrick. The guide assembly includes a guide wheel group for guiding the adjacent corresponding pulling rope and a truss. The truss is connected to the base under the derrick and the other end extends horizontally toward the side away from the derrick. The guide wheel group is connected to its end away from the derrick, and the end of the pulling rope extends horizontally toward the side close to the derrick through the guide wheel group. A plurality of tensioning assemblies correspond to the number and position of the pulling ropes, and the tensioning assemblies include a fastening block for fixing the pulling ropes and a moving part for driving the fastening block to move toward one side of the derrick.

2. A protective device for the movement of a mine shaft derrick according to claim 1, characterized in that: The connecting member includes a rotating wheel and a fixing frame, the fixing frame is detachably connected to the side wall of the overhead sheave platform, the pulling rope is wound around the rotating wheel, and both ends thereof extend toward one side of the corresponding lower guide wheel group.

3. A protective device for the movement of a mine shaft derrick according to claim 2, characterized in that: The acute angle between the pulling rope and the horizontal plane is 60° to 70°.

4. The protective device for movement of a mine shaft derrick according to claim 2, characterized in that: The guide wheel group 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 close to the derrick side is higher than the height of the other guide wheel, and the two ends of the pulling rope are respectively wrapped around the corresponding guide wheels.

5. The protective device for movement of a mine shaft derrick according to claim 4, characterized in that: The fastening block is provided with through holes corresponding to the sizes of the two ends of the pulling rope, and the pulling rope is fixedly connected to the fastening block through a bolt buckle.

6. The protective device for movement of a mine shaft derrick according to claim 1, characterized in that: The moving part includes: A pull rod, a first end of which is fixedly connected to the fastening block, a second end of which extends horizontally toward one side of the derrick and is provided with an external thread; The rotating sleeve is rotatably connected to the lower base of the derrick. A blind hole is provided at the end of the rotating sleeve corresponding to the pull rod. The rotating sleeve is provided with an internal thread connected to the external thread at the outside of the blind hole. As the rotating sleeve rotates, the pull rod is driven to move in the horizontal direction, which is used to tighten or loosen the pulling rope.

7. A protective device for movement of a mine shaft derrick according to claim 6, characterized in that: The two rotating sleeves on the left are respectively fixedly connected to the two adjacent rotating sleeves on the right. The external threads of the two pull rods on the left have the same rotation direction, and the external threads of the two pull rods on the left are opposite to the rotation directions of the external threads of the two pull rods on the right. The two rotating sleeves are driven by the driving part. As the two rotating sleeves rotate in opposite directions under the driving action of the driving part, each fastening block is synchronously moved horizontally toward or away from the side of the derrick.

8. The protective device for movement of a mine shaft derrick according to claim 1, characterized in that: Each pulling rope is detachably connected to a limiting piece for fastening a deflection plate of a hook preventer at a height close to the derrick hook.

9. The protective device for movement of a mine shaft derrick according to claim 1, characterized in that: A slider is fixedly connected to the lower part of the fastening block, and a slide rail is provided below the truss corresponding to the fastening block. The fastening block is slidably connected to the truss via the slider.

10. The protective device for movement of a mine shaft derrick according to claim 1, characterized in that: The lower part of the truss is slidably connected to the guide rail.

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