Hoisting device for workover rig drill floor

Abstract

The hoisting device for the workover rig drill floor comprises an I-shaped cross beam, the I-shaped cross beam is connected with a hoisting moving module in a sliding mode, the hoisting moving module is connected with a supporting support, and the two sides of the supporting support are connected with a double-power winch module and a manual hydraulic driving module respectively. The hoisting device for the workover rig drill floor improves the construction efficiency when a blowout preventer under the workover rig drill floor is mounted and dismounted, eliminates potential safety hazards, adopts an integrated design, is compact in structure, convenient to mount and operate, safe and reliable, has the effects of energy conservation and environmental protection, improves the mounting speed, reduces the labor intensity of personnel, and improves the working efficiency of the workover rig drill floor. The construction safety risk is greatly reduced, the safety guarantee is improved, and the purposes of innovation, efficiency creation, speed increase and efficiency improvement are achieved.

Description

Technical Field

[0001] This invention belongs to the field of hoisting equipment technology, and relates to a hoisting device for a well workover rig drilling platform. Background Technology

[0002] Currently, when dismantling and removing the blowout preventer (BOP) under the drilling rig on-site, a small winch or pulley with a large hook is used to suspend the sling for installation or dismantling. During this process, because there is no lifting position on the BOP, on-site workers wrap the sling around it for lifting. Due to the unstable position of the sling, it is difficult to align and connect the BOP installation point with the wellhead. However, the BOP is heavy and its location is difficult to operate, requiring multiple people to cooperate to complete the installation. This results in high labor intensity for on-site workers and increases the risk of accidents such as injuries. Secondly, the BOP may collide with the wellhead bolts, causing thread damage. This prevents the nuts from being rotated and tightened during installation. Minor damage can be repaired and installation can proceed, but severe damage requires lifting the BOP and replacing the bolts, increasing construction time, wasting effort, and significantly reducing operational efficiency.

[0003] In summary, the existing technology lacks a hoisting device compatible with the blowout preventer under the workover rig drilling platform. Summary of the Invention

[0004] The purpose of this invention is to provide a hoisting device for workover rig drilling platforms, which solves the problem in the prior art of lacking a hoisting device compatible with the blowout preventer under the workover rig drilling platform.

[0005] The technical solution adopted in this invention is a hoisting device for a workover rig drilling platform, including an I-beam, a hoisting moving module slidably connected to the I-beam, a support bracket connected to the hoisting moving module, and a dual-power winch module and a manual hydraulic drive module respectively connected to both sides of the support bracket.

[0006] The invention is further characterized by: The hoisting and moving module includes two wing support plates. On the two sides of the wing support plates near the I-beam, there are towing wheels and drive wheels respectively. The towing wheels and drive wheels are connected to the two wing support plates through towing wheel pins. Towing wheel bearings are sleeved on the towing wheels and drive wheels respectively. The two wing support plates near the I-beam have mounting holes for trolley-driven hoists.

[0007] Lifting lug support plates are provided at the ends of the two wing support plates away from the I-beam. The lifting lug support plates are fixed to the two wing support plates by lifting lug support plate fixing bolts and lifting lug support plate fixing nuts. Lifting lug support plate fixing support sleeves are sleeved on the lifting lug support plate fixing bolts. The two ends of the lifting lug support plate fixing support sleeves are respectively attached to the two wing support plates and the lifting lug support plates. A hook is connected to the end of the lifting lug support plate away from the two wing support plates. The end of the hook away from the lifting lug support plate passes through the hook mounting bracket and is sleeved with a hook fastening nut.

[0008] The hook is fitted with an upper centering bearing and a lower thrust bearing. The upper centering bearing is in contact with the side of the hook mounting bracket closest to the lug support plate; the lower thrust bearing is in contact with the side of the hook mounting bracket furthest from the lug support plate; the end of the hook mounting bracket furthest from the hook is fixed to the support bracket by several hook mounting bolts.

[0009] The support frame includes a boom, which is fixedly connected to a hook mounting bracket by several hook mounting bolts; an inner boom is fixedly connected to one end of the boom via an inner boom flange, and a front pulley mounting bracket is connected to the inner boom on the side away from the boom; a tail pulley mounting bracket is fixedly connected to the other end of the boom via a boom flange and fixing bolts.

[0010] A mast hydraulic cylinder mounting bracket is fixed to one end of the boom near the inner boom. A mast is fixed to one end of the boom near the tail pulley mounting bracket. A hydraulic pump mounting bracket and a manual winch mounting bracket are fixed to the other end of the mast away from the boom.

[0011] The manual hydraulic drive module includes a manual hydraulic pump, which is fixedly connected to a hydraulic pump mounting bracket. The mast drive hydraulic cylinder barrel is fixedly connected to the end of the mast near the manual hydraulic pump via a cylinder connecting pin. The mast drive hydraulic cylinder piston is embedded in the cylinder barrel. The end of the mast drive hydraulic cylinder piston away from the mast drive hydraulic cylinder barrel is fixedly connected to the end of the mast hydraulic cylinder mounting bracket away from the boom via a mast piston connecting pin.

[0012] An inner boom drive hydraulic cylinder is fixedly connected to the tail pulley mounting bracket, and an inner boom drive piston is connected to the inner boom drive hydraulic cylinder; a manual hydraulic pump is connected to the mast drive hydraulic cylinder and the inner boom drive hydraulic cylinder through hydraulic pipelines respectively.

[0013] The dual-power winch module includes a winch, which is fixed to a manual winch mounting bracket. The winch is connected in sequence to a tail pulley, a head pulley, and a traveling pulley via a winch wire rope. Both ends of the winch wire rope are fixed to the winch and the inner boom flange, respectively. The tail pulley is fixed to the tail pulley mounting bracket via a tail pulley connecting pin. The head pulley is fixed to the front pulley mounting bracket via a head pulley connecting pin.

[0014] A movable pulley bearing is embedded in the axle of the movable pulley. Movable pulley mounting plates are fixed to both ends of the movable pulley bearing. A movable hook is provided at the end of the movable pulley mounting plate away from the movable pulley. The movable hook is connected to the movable pulley mounting plate through a movable hook fixing nut. A movable hook thrust bearing is sleeved on the movable hook. The movable hook thrust bearing is connected to the movable hook thrust bearing mounting sleeve. The movable hook thrust bearing mounting sleeve is fixed between the movable pulley mounting plates. A movable hook locking tongue is provided on the movable hook.

[0015] The beneficial effects of this invention are: it improves the construction efficiency of installing and disassembling the blowout preventer under the workover rig drilling platform and eliminates safety hazards. This invention uses an integrated design, has a compact structure, is easy to install and operate, is safe and reliable, and also has energy-saving and environmental protection functions. It increases the installation speed, reduces the labor intensity of personnel, greatly reduces construction safety risks, improves safety assurance, and achieves the goals of innovation, efficiency, and speed. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the hoisting device for a well workover rig drilling platform according to the present invention; Figure 2 This is a front view of the hoisting device for a workover rig drilling platform according to the present invention; Figure 3 This is a partially enlarged view of the hoisting device for a workover rig drilling platform according to the present invention; Figure 4 This is a side view of the hoisting device for a workover rig drilling platform according to the present invention.

[0017] In the diagram, 1. I-beam; 2. Lifting and moving module; 201. Two-wing support plates; 202. Towing wheel; 203. Drive towing wheel; 204. Lifting lug support plate; 205. Lifting hook; 206. Towing wheel bearing; 207. Lifting lug support plate fixing bolt; 208. Lifting lug support plate fixing nut; 209. Upper centering bearing of the hook; 2010. Lower thrust bearing of the hook; 2011. Hook fastening nut; 2012. Mounting hole for the trolley-driven hoist; 2 013. Lifting lug support plate fixing support sleeve; 2014. Towing wheel pin shaft; 2015. Hook mounting bracket; 2016. Hook mounting bolt; 3. Dual-power winch module; 301. Winch; 302. Winch wire rope; 303. Tail pulley; 304. Head pulley; 305. Floating pulley; 306. Floating pulley mounting side plate; 307. Floating pulley bearing; 308. Floating hook fixing nut; 309. Floating hook thrust bearing; 3 010. Thrust bearing mounting sleeve for traveling hook; 3011. Traveling hook; 3012. Traveling hook locking tongue; 3013. Head pulley connecting pin; 3014. Tail pulley connecting pin; 4. Manual hydraulic drive module; 401. Manual hydraulic pump; 402. Mast drive hydraulic cylinder connecting pin; 403. Mast drive hydraulic cylinder barrel; 404. Mast drive hydraulic cylinder piston; 405. Mast pressure cylinder piston connecting pin; 406. Inner boom drive hydraulic... 407. Cylinder; 408. Inner boom drive piston; 5. Hydraulic pipeline; 6. Support bracket; 7. Boom; 8. Inner boom; 9. Inner boom flange; 10. Front pulley mounting bracket; 11. Mast hydraulic cylinder mounting bracket; 12. Mast; 13. Hydraulic pump mounting bracket; 14. Hydraulic pump mounting bracket; 15. Manual winch mounting bracket; 16. Boom flange; 17. Tail pulley mounting bracket; 18. Fixing bolts. Detailed Implementation

[0018] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0019] Lifting devices for workover rig drilling platforms, such as Figure 1 As shown, it includes an I-beam 1, a hoisting and moving module 2 slidably connected to the I-beam 1, a support bracket 5 connected to the hoisting and moving module 2, and a dual-power winch module 3 and a manual hydraulic drive module 4 connected to both sides of the support bracket 5 respectively. like Figure 2 As shown, the hoisting and moving module 2 includes two wing support plates 201. On each side of the wing support plate 201 near the I-beam 1, a towing wheel 202 and a drive towing wheel 203 are respectively provided. The towing wheel 202 and the drive towing wheel 203 are connected to the wing support plate 201 via towing wheel pins 2014. Towing wheel bearings 206 are respectively fitted onto the towing wheel 202 and the drive towing wheel 203. A trolley-driven hoist mounting hole 2012 is provided on the side of the wing support plate 201 near the I-beam 1. Figure 3 As shown, a lifting lug support plate 204 is provided at the end of the two wing support plates 201 away from the I-beam 1. The lifting lug support plate 204 is fixed to the two wing support plates 201 by lifting lug support plate fixing bolts 207 and lifting lug support plate fixing nuts 208. A lifting lug support plate fixing support sleeve 2013 is sleeved on the lifting lug support plate fixing bolt 207, and the two ends of the lifting lug support plate fixing support sleeve 2013 are respectively attached to the two wing support plates 201 and the lifting lug support plate 204; Figure 4 As shown, a hook 205 is connected to one end of the lug support plate 204 away from the two wing support plates 201. The end of the hook 205 away from the lug support plate 204 passes through the hook mounting bracket 2015 and is fitted with a hook fastening nut 2011. A hook upper centering bearing 209 and a hook lower thrust bearing 2010 are fitted on the hook 205. The hook upper centering bearing 209 is in contact with the side of the hook mounting bracket 2015 near the lug support plate 204. The hook lower thrust bearing 2010 is in contact with the side of the hook mounting bracket 2015 away from the lug support plate 204. The end of the hook mounting bracket 2015 away from the hook 205 is fixed to the support bracket 5 by several hook mounting bolts 2016. The support bracket 5 includes a boom 501, which is fixedly connected to a hook mounting bracket 2015 by a number of hook mounting bolts 2016; one end of the boom 501 is fixedly connected to an inner boom 502 by an inner boom flange 503, and a front pulley mounting bracket 504 is connected to the inner boom 502 on the side away from the boom 501; the other end of the boom 501 is fixedly connected to a tail pulley mounting bracket 5010 by a boom flange 509 and fixing bolts 5011; a mast hydraulic cylinder mounting bracket 505 is fixedly connected to the boom 501 near the inner boom 502, and a mast 506 is fixedly connected to the end of the boom 501 near the tail pulley mounting bracket 5010; a hydraulic pump mounting bracket 507 and a manual winch mounting bracket 508 are fixedly connected to the end of the mast 506 away from the boom 501. The manual hydraulic drive module 4 includes a manual hydraulic pump 401, which is fixedly connected to a hydraulic pump mounting bracket 507. A mast drive hydraulic cylinder 403 is fixedly connected to the end of the mast 506 near the manual hydraulic pump 401 via a cylinder connecting pin 402. A mast drive hydraulic cylinder piston 404 is embedded within the mast drive hydraulic cylinder 403. The end of the mast drive hydraulic cylinder piston 404 away from the mast drive hydraulic cylinder 403 is fixedly connected to the end of the mast hydraulic cylinder mounting bracket 505 away from the boom 501 via a mast piston connecting pin 405. An inner boom drive hydraulic cylinder 406 is fixedly connected to the tail pulley mounting bracket 5010, and an inner boom drive piston 407 is connected to the inner boom drive hydraulic cylinder 406. The manual hydraulic pump 401 is connected to the mast drive hydraulic cylinder 403 and the inner boom drive hydraulic cylinder 406 via hydraulic lines 408. The dual-power winch module 3 includes a winch 301, which is fixedly connected to a manual winch mounting bracket 508. The winch 301 is sequentially connected to a tail pulley 303, a head pulley 304, and a traveling pulley 305 via a winch wire rope 302. Both ends of the winch wire rope 302 are fixed to the winch 301 and the inner boom flange 503, respectively. The tail pulley 303 is fixedly connected to a tail pulley mounting bracket 5010 via a tail pulley connecting pin 3014. The head pulley 304 is fixedly connected to a front pulley mounting bracket 504 via a head pulley connecting pin. A traveling pulley bearing 307 is embedded in the shaft of the traveling pulley 305. Both ends of the pulley bearing 307 are fixedly connected to a movable pulley mounting side plate 306. A movable hook 3011 is provided at the end of the movable pulley mounting side plate 306 away from the movable pulley 305. The movable hook 3011 is connected to the movable pulley mounting side plate 306 through a movable hook fixing nut 308. A movable hook thrust bearing 309 is sleeved on the movable hook 3011. The movable hook thrust bearing 309 is connected to a movable hook thrust bearing mounting sleeve 3010. The movable hook thrust bearing mounting sleeve 3010 is fixed between the movable pulley mounting side plates 306. A movable hook locking tongue 3012 is provided on the movable hook 3011.

[0020] This invention utilizes the existing I-beam 1 on the existing steel support of the workover rig drilling platform as the basic support for the installation of this invention. A hoisting and moving module 2 is installed under the I-beam 1. The hoisting and moving module 2 moves on the I-beam 1 via gear transmission. A support bracket 5 connected to the hoisting and moving module 2 enables angle changes, ensuring safety, reliability, and timeliness during the hoisting process, and completing hoisting and dismantling work quickly, efficiently, and safely. The manual hydraulic drive module 4 mainly extends the length of the boom, changes the direction of force during hoisting, and features a labor-saving design, allowing the boom to rotate 360° around the hook. The inner boom can also extend and shorten within its design range to adapt to the distance of the hoisted object and the needs of selective installation. The dual-power winch module 3 is the power drive part of this invention, with both manual and low-voltage electric power, enabling hoisting operations in the presence or absence of electricity.

[0021] This invention utilizes a dual-power winch module 3 to realize the hoisting and disassembly functions of wellhead control equipment; when the winch 301 rotates in the forward direction, the winch wire rope 302 is tightened, and when the winch 301 rotates in the reverse direction, the winch wire rope 302 is lowered. During the hoisting process, the winch wire rope 302, the floating pulley 305, the head pulley 304, and the tail pulley 303 together form a pulley group, wherein the floating pulley 305 is a movable pulley, which can increase the torque, and the head pulley 304 and the tail pulley 303 are fixed pulleys; Example 1 This embodiment provides a hoisting device for a workover rig drilling platform, such as... Figure 1 As shown, it includes an I-beam 1, a hoisting and moving module 2 slidably connected to the I-beam 1, a support bracket 5 connected to the hoisting and moving module 2, and a dual-power winch module 3 and a manual hydraulic drive module 4 respectively connected to both sides of the support bracket 5; as shown Figure 2 As shown, the hoisting and moving module 2 includes two wing support plates 201. On each side of the wing support plate 201 near the I-beam 1, a towing wheel 202 and a drive towing wheel 203 are respectively provided. The towing wheel 202 and the drive towing wheel 203 are connected to the wing support plate 201 via towing wheel pins 2014. Towing wheel bearings 206 are respectively fitted onto the towing wheel 202 and the drive towing wheel 203. A trolley-driven hoist mounting hole 2012 is provided on the side of the wing support plate 201 near the I-beam 1. Figure 3 As shown, a lifting lug support plate 204 is provided at the end of the two wing support plates 201 away from the I-beam 1. The lifting lug support plate 204 is fixed to the two wing support plates 201 by lifting lug support plate fixing bolts 207 and lifting lug support plate fixing nuts 208. A lifting lug support plate fixing support sleeve 2013 is sleeved on the lifting lug support plate fixing bolt 207, and the two ends of the lifting lug support plate fixing support sleeve 2013 are respectively attached to the two wing support plates 201 and the lifting lug support plate 204; Figure 4As shown, a hook 205 is connected to one end of the lug support plate 204 away from the two wing support plates 201. The end of the hook 205 away from the lug support plate 204 passes through the hook mounting bracket 2015 and is fitted with a hook fastening nut 2011. A hook upper centering bearing 209 and a hook lower thrust bearing 2010 are fitted on the hook 205. The hook upper centering bearing 209 is in contact with the side of the hook mounting bracket 2015 near the lug support plate 204. The hook lower thrust bearing 2010 is in contact with the side of the hook mounting bracket 2015 away from the lug support plate 204. The end of the hook mounting bracket 2015 away from the hook 205 is fixed to the support bracket 5 by six hook mounting bolts 2016.

[0022] Example 2 This embodiment provides a hoisting device for a workover rig drilling platform, such as... Figure 1 As shown, it includes an I-beam 1, a hoisting and moving module 2 slidably connected to the I-beam 1, a support bracket 5 connected to the hoisting and moving module 2, and a dual-power winch module 3 and a manual hydraulic drive module 4 respectively connected to both sides of the support bracket 5; as shown Figure 2 As shown, the hoisting and moving module 2 includes two wing support plates 201. On each side of the wing support plate 201 near the I-beam 1, a towing wheel 202 and a drive towing wheel 203 are respectively provided. The towing wheel 202 and the drive towing wheel 203 are connected to the wing support plate 201 via towing wheel pins 2014. Towing wheel bearings 206 are respectively fitted onto the towing wheel 202 and the drive towing wheel 203. A trolley-driven hoist mounting hole 2012 is provided on the side of the wing support plate 201 near the I-beam 1. Figure 3 As shown, a lifting lug support plate 204 is provided at the end of the two wing support plates 201 away from the I-beam 1. The lifting lug support plate 204 is fixed to the two wing support plates 201 by lifting lug support plate fixing bolts 207 and lifting lug support plate fixing nuts 208. A lifting lug support plate fixing support sleeve 2013 is sleeved on the lifting lug support plate fixing bolt 207, and the two ends of the lifting lug support plate fixing support sleeve 2013 are respectively attached to the two wing support plates 201 and the lifting lug support plate 204; Figure 4As shown, a hook 205 is connected to one end of the lifting lug support plate 204 away from the two wing support plates 201. The end of the hook 205 away from the lifting lug support plate 204 passes through the hook mounting bracket 2015 and is fitted with a hook fastening nut 2011. An upper hook centering bearing 209 and a lower hook thrust bearing 2010 are fitted onto the hook 205. The upper hook centering bearing 209 is in contact with the side of the hook mounting bracket 2015 closest to the lifting lug support plate 204; the lower hook thrust bearing 2010 is in contact with the side of the hook mounting bracket 2015 away from the lifting lug support plate 204. The end of the hook mounting bracket 2015 away from the hook 205 is fixed to the support bracket 5 by six hook mounting bolts 2016. The support bracket 5 includes a boom 501. The boom 501 is fixedly connected to the hook mounting bracket 2015 by six hook mounting bolts 2016; one end of the boom 501 is fixedly connected to the inner boom 502 by the inner boom flange 503, and the side of the inner boom 502 away from the boom 501 is connected to the front pulley mounting bracket 504; the other end of the boom 501 is fixedly connected to the tail pulley mounting bracket 5010 by the boom flange 509 and the fixing bolt 5011; the end of the boom 501 near the inner boom 502 is fixedly connected to the mast hydraulic cylinder mounting bracket 505, the end of the boom 501 near the tail pulley mounting bracket 5010 is fixedly connected to the mast 506, and the end of the mast 506 away from the boom 501 is fixedly connected to the hydraulic pump mounting bracket 507 and the manual winch mounting bracket 508.

[0023] Example 3 This embodiment provides a hoisting device for a workover rig drilling platform, such as... Figure 1 As shown, it includes an I-beam 1, a hoisting and moving module 2 slidably connected to the I-beam 1, a support bracket 5 connected to the hoisting and moving module 2, and a dual-power winch module 3 and a manual hydraulic drive module 4 respectively connected to both sides of the support bracket 5; as shown Figure 2 As shown, the hoisting and moving module 2 includes two wing support plates 201. On each side of the wing support plate 201 near the I-beam 1, a towing wheel 202 and a drive towing wheel 203 are respectively provided. The towing wheel 202 and the drive towing wheel 203 are connected to the wing support plate 201 via towing wheel pins 2014. Towing wheel bearings 206 are respectively fitted onto the towing wheel 202 and the drive towing wheel 203. A trolley-driven hoist mounting hole 2012 is provided on the side of the wing support plate 201 near the I-beam 1. Figure 3 As shown, a lifting lug support plate 204 is provided at the end of the two wing support plates 201 away from the I-beam 1. The lifting lug support plate 204 is fixed to the two wing support plates 201 by lifting lug support plate fixing bolts 207 and lifting lug support plate fixing nuts 208. A lifting lug support plate fixing support sleeve 2013 is sleeved on the lifting lug support plate fixing bolt 207, and the two ends of the lifting lug support plate fixing support sleeve 2013 are respectively attached to the two wing support plates 201 and the lifting lug support plate 204; Figure 4As shown, a hook 205 is connected to one end of the lug support plate 204 away from the two wing support plates 201. The end of the hook 205 away from the lug support plate 204 passes through the hook mounting bracket 2015 and is fitted with a hook fastening nut 2011. A hook upper centering bearing 209 and a hook lower thrust bearing 2010 are fitted on the hook 205. The hook upper centering bearing 209 is in contact with the side of the hook mounting bracket 2015 near the lug support plate 204. The hook lower thrust bearing 2010 is in contact with the side of the hook mounting bracket 2015 away from the lug support plate 204. The end of the hook mounting bracket 2015 away from the hook 205 is fixed to the support bracket 5 by six hook mounting bolts 2016. The support bracket 5 includes a boom 501, which is fixedly connected to a hook mounting bracket 2015 by six hook mounting bolts 2016; one end of the boom 501 is fixedly connected to an inner boom 502 by an inner boom flange 503, and a front pulley mounting bracket 504 is connected to the inner boom 502 on the side away from the boom 501; the other end of the boom 501 is fixedly connected to a tail pulley mounting bracket 5010 by a boom flange 509 and fixing bolts 5011; a mast hydraulic cylinder mounting bracket 505 is fixedly connected to the end of the boom 501 near the inner boom 502, and a mast 506 is fixedly connected to the end of the boom 501 near the tail pulley mounting bracket 5010; a hydraulic pump mounting bracket 507 and a manual winch mounting bracket 508 are fixedly connected to the end of the mast 506 away from the boom 501. The manual hydraulic drive module 4 includes a manual hydraulic pump 401, which is fixedly mounted on a hydraulic pump mounting bracket 507. A mast 506 is fixedly connected to a mast drive hydraulic cylinder 403 via a cylinder connecting pin 402 at one end near the manual hydraulic pump 401. A mast drive hydraulic cylinder piston 404 is embedded within the mast drive hydraulic cylinder 403. The end of the mast drive hydraulic cylinder piston 404 away from the mast drive hydraulic cylinder 403 is fixedly mounted to the mast hydraulic cylinder mounting bracket 507 via a mast piston connecting pin 405. 5. The end furthest from the boom 501; an inner boom drive hydraulic cylinder 406 is fixedly connected to the tail pulley mounting bracket 5010, and an inner boom drive piston 407 is connected to the inner boom drive hydraulic cylinder 406; a manual hydraulic pump 401 is connected to the mast drive hydraulic cylinder 403 and the inner boom drive hydraulic cylinder 406 respectively through hydraulic lines 408; the dual-power winch module 3 includes a winch 301, which is fixedly connected to the manual winch mounting bracket 508, and the winch 301 is connected to the tail pulley 3 in sequence through the winch wire rope 302. 03. The head pulley 304 and the traveling pulley 305 are fixed at both ends of the winch wire rope 302 to the winch 301 and the inner boom flange 503 respectively; the tail pulley 303 is fixed to the tail pulley mounting bracket 5010 through the tail pulley connecting pin 3014; the head pulley 304 is fixed to the front pulley mounting bracket 504 through the head pulley connecting pin; the traveling pulley 305 has a traveling pulley bearing 307 embedded in its shaft, and the traveling pulley bearing 307 has traveling pulley mounting side plates 306 fixed at both ends respectively. A movable hook 3011 is provided at the end of the side plate 306 away from the movable pulley 305. The movable hook 3011 is connected to the movable pulley mounting side plate 306 through a movable hook fixing nut 308. A movable hook thrust bearing 309 is sleeved on the movable hook 3011. The movable hook thrust bearing 309 is connected to the movable hook thrust bearing mounting sleeve 3010. The movable hook thrust bearing mounting sleeve 3010 is fixed between the movable pulley mounting side plates 306. A movable hook locking tongue 3012 is provided on the movable hook 3011.

[0024] During construction, after the workover rig is installed in place, the workover rig drilling platform is fixedly connected to the workover rig. After the workover rig drilling platform is installed, the hoisting device for the workover rig drilling platform is installed. First, the hoisting moving module 2 is installed onto the I-beam 1 of the drilling platform; then, the optional boom connecting assembly is connected, and the hook 205 is installed onto the lifting lug support plate 204. Next, the hook mounting bracket 2015 is installed, and the installed hook mounting bracket 2015 can rotate freely; then, the boom 501 is bolted to the hook mounting bracket 2015; the internal... First, install the inner boom drive hydraulic cylinder 406 on the boom 502, then install the inner boom drive piston 407, and simultaneously install the mast drive hydraulic cylinder, connecting the hydraulic line 408; install the dual-power winch module 3, the hoisting winch wire rope 302, and the pulley assembly; install the mast 506 and the mast drive hydraulic cylinder, connecting the hydraulic line 408, and connect the mast 506 to the boom 501 with connecting pins. Check whether the installation of the device is safe and reliable, and ensure that all connecting pins and bolts are securely fastened to prevent them from coming loose. Secure the cotter pins on the connecting pins and tighten the nuts on the bolts. After the wellhead drilling platform is in place, the wellhead blowout preventer (BOP) assembly is hoisted. First, the BOP assembly is hoisted to the vicinity of the drilling platform. The BOP hoisting device is rotated to the side of the surface BOP. The manual hydraulic pump is operated to raise the inner boom 502 to a vertical position above the surface BOP. The dual-power winch module 3 is operated to lift the surface BOP using the floating hook 3011. The operation is slow, and the inner boom 502 is retracted. At the same time, the boom 501 is rotated to rotate the hook to a vertical position above the wellhead. The wellhead BOP assembly is slowly installed, the bolt holes are aligned, the fastening bolts are installed and tightened, and the installation is checked to ensure it is reliable. To disassemble the blowout preventer (BOP) to the ground, first loosen the wellhead fixing bolts, attach the lifting slings, rotate the lifting device boom to a position above the wellhead and vertically align it with the BOP, attach the lifting slings, slowly tighten the slings, and slowly lift the BOP. Attach boom 501 to the outside of the workover rig platform, extend the inner boom 502, place the BOP on the ground, secure it firmly to prevent tipping, retract the lifting device, shrink the inner boom 502, and retract the pulley block. Secure the device, check and tighten all connecting pins and bolts, and prepare for relocation.

Claims

1. A hoisting device for a workover rig drilling platform, characterized in that, It includes an I-beam (1), on which a hoisting moving module (2) is slidably connected, and the hoisting moving module (2) is connected to a support bracket (5). A dual-power winch module (3) and a manual hydraulic drive module (4) are respectively connected to both sides of the support bracket (5).

2. The hoisting device for a workover rig drilling platform according to claim 1, characterized in that, The hoisting and moving module (2) includes two wing support plates (201). The two wing support plates (201) are respectively provided with a towing wheel (202) and a drive towing wheel (203) on both sides of the end near the I-beam (1). The towing wheel (202) and the drive towing wheel (203) are respectively connected to the two wing support plates (201) through towing wheel pins (2014). The towing wheel (202) and the drive towing wheel (203) are respectively fitted with towing wheel bearings (206). The two wing support plates (201) have trolley drive hoist mounting holes (2012) on the side near the I-beam (1).

3. The hoisting device for a workover rig drilling platform according to claim 2, characterized in that, A lifting lug support plate (204) is provided at the end of the two wing support plates (201) away from the I-beam (1). The lifting lug support plate (204) is fixed to the two wing support plates (201) by lifting lug support plate fixing bolts (207) and lifting lug support plate fixing nuts (208). A lifting lug support plate fixing support sleeve (2013) is sleeved on the lifting lug support plate fixing bolts (207). The two ends of the lifting lug support plate fixing support sleeve (2013) are respectively attached to the two wing support plates (201) and the lifting lug support plate (204). A hook (205) is connected to the end of the lifting lug support plate (204) away from the two wing support plates (201). The end of the hook (205) away from the lifting lug support plate (204) passes through the hook mounting bracket (2015) and is sleeved with a hook fastening nut (2011).

4. The hoisting device for a workover rig drilling platform according to claim 3, characterized in that, The hook (205) is fitted with an upper hook centering bearing (209) and a lower hook thrust bearing (2010). The upper hook centering bearing (209) is in contact with the side of the hook mounting bracket (2015) near the lifting lug support plate (204). The lower hook thrust bearing (2010) is in contact with the side of the hook mounting bracket (2015) away from the lifting lug support plate (204). The end of the hook mounting bracket (2015) away from the hook (205) is fixed to the support bracket (5) by a number of hook mounting bolts (2016).

5. The hoisting device for a workover rig drilling platform according to claim 4, characterized in that, The support bracket (5) includes a boom (501), which is fixedly connected to a hook mounting bracket (2015) by a number of hook mounting bolts (2016); one end of the boom (501) is fixedly connected to an inner boom (502) by an inner boom flange (503), and a front pulley mounting bracket (504) is connected to the side of the inner boom (502) away from the boom (501); the other end of the boom (501) is fixedly connected to a tail pulley mounting bracket (5010) by a boom flange (509) and fixing bolts (5011).

6. The hoisting device for a workover rig drilling platform according to claim 5, characterized in that, A mast hydraulic cylinder mounting bracket (505) is fixedly connected to one end of the boom (501) near the inner boom (502). A mast (506) is fixedly connected to one end of the boom (501) near the tail pulley mounting bracket (5010). A hydraulic pump mounting bracket (507) and a manual winch mounting bracket (508) are fixedly connected to the end of the mast (506) away from the boom (501).

7. The hoisting device for a workover rig drilling platform according to claim 6, characterized in that, The manual hydraulic drive module (4) includes a manual hydraulic pump (401), which is fixedly connected to the hydraulic pump mounting bracket (507). The mast (506) is fixedly connected to the mast drive hydraulic cylinder barrel (403) near the manual hydraulic pump (401) via a cylinder connecting pin (402). The mast drive hydraulic cylinder barrel (403) is embedded with a mast drive hydraulic cylinder piston (404). The end of the mast drive hydraulic cylinder piston (404) away from the mast drive hydraulic cylinder barrel (403) is fixedly connected to the end of the mast hydraulic cylinder mounting bracket (505) away from the boom (501) via a mast piston connecting pin (405).

8. The hoisting device for a workover rig drilling platform according to claim 7, characterized in that, An inner boom drive hydraulic cylinder (406) is fixedly connected to the tail pulley mounting bracket (5010), and an inner boom drive piston (407) is connected to the inner boom drive hydraulic cylinder (406); the manual hydraulic pump (401) is connected to the mast drive hydraulic cylinder barrel (403) and the inner boom drive hydraulic cylinder (406) respectively through hydraulic pipelines (408).

9. The hoisting device for a workover rig drilling platform according to claim 8, characterized in that, The dual-power winch module (3) includes a winch (301), which is fixedly connected to a manual winch mounting bracket (508). The winch (301) is connected in sequence to a tail pulley (303), a head pulley (304), and a floating pulley (305) via a winch wire rope (302). The two ends of the winch wire rope (302) are fixed to the winch (301) and the inner boom flange (503), respectively. The tail pulley (303) is fixedly connected to the tail pulley mounting bracket (5010) via a tail pulley connecting pin (3014). The head pulley (304) is fixedly connected to the front pulley mounting bracket (504) via a head pulley connecting pin.

10. The hoisting device for a workover rig drilling platform according to claim 9, characterized in that, The movable pulley (305) has a movable pulley bearing (307) embedded in its shaft. Movable pulley mounting side plates (306) are fixed to both ends of the movable pulley bearing (307). A movable hook (3011) is provided at the end of the movable pulley mounting side plate (306) away from the movable pulley (305). The movable hook (3011) is connected to the movable pulley mounting side plate (306) through a movable hook fixing nut (308). A movable hook thrust bearing (309) is sleeved on the movable hook (3011). The movable hook thrust bearing (309) is connected to a movable hook thrust bearing mounting sleeve (3010). The movable hook thrust bearing mounting sleeve (3010) is fixed between the movable pulley mounting side plates (306). A movable hook locking tongue (3012) is provided on the movable hook (3011).

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