Ultra-deep well ropeless hoisting device

Abstract

The utility model discloses a superdeep well cordless hoisting device, include: transmission assembly, including driving sprocket, driving sprocket left and right symmetry is equipped with two groups, the below of driving sprocket is equipped with driven sprocket, and driven sprocket is equipped with several, and the outer wall cooperation transmission connection chain of driving sprocket and driven sprocket, and the outside of driven sprocket and chain is equipped with chain limiting peg, the top inner wall of basket is through bearing swing joint hoist axle, and the both ends of hoist axle and chain inner wall's insert axle fixed connection, positioning assembly includes guide rail, and guide rail left and right symmetry is equipped with two groups, involve cordless hoisting device technical field, through chain limiting peg and limiting idler wheel accurate limiting to chain, and the smooth steering of hoist axle is realized in combination with the sliding slot of guide rail and first, second gap groove, effectively avoid chain derailment, basket jam and so on problem, improve the continuous operation reliability under the environment of superdeep well.

Description

Technical Field

[0001] This utility model relates to the technical field of cordless lifting devices, specifically a cordless lifting device for ultra-deep wells. Background Technology

[0002] In the mining industry, shallow mineral resources are constantly being depleted, and the demand for hoisting in "super-deep" and super-large wells in the fields of mineral exploration and geological exploration has surged. When facing "double super" mines that are both super-deep and super-large, traditional hoisting technology is becoming a bottleneck for ensuring production capacity and improving efficiency. In existing underground mining production, the hoisting process mainly relies on steel wire ropes. As the mining depth increases, the self-weight of the hoisting steel wire ropes also increases, resulting in a passive reduction in effective hoisting load and low hoisting efficiency. The insurmountable physical limitations of traditional steel wire rope hoisting are: the self-weight of the steel wire ropes leads to "the greater the hoisting depth, the smaller the effective load", and efficiency drops sharply when the depth exceeds 2000 meters. Energy consumption increases exponentially with depth. Safety hazards include the risk of fatigue fracture of the rope under long-term load, and maintenance costs account for up to 40%. The process is also complex: segmented hoisting requires the connection of multiple sets of equipment, which increases the equipment failure rate. The steel wire ropes are prone to corrosion and wear in the deep well environment, which reduces their strength and poses a risk of fracture. Moreover, the self-weight of ultra-long steel wire ropes will significantly increase power consumption and hoisting efficiency. The installation and maintenance costs of wire ropes are high, and the replacement cycle is short, making them less economical for ultra-deep well projects that require long-term continuous operation.

[0003] Therefore, there is an urgent need for an ultra-deep well hoisting device that does not rely on steel wire ropes, operates stably, and is more efficient, in order to solve the safety hazards and cost problems of traditional technologies. Summary of the Invention

[0004] The purpose of this invention is to provide a ropeless hoisting device for ultra-deep wells, in order to solve the problems mentioned in the background art, such as the steel wire rope being prone to strength reduction due to corrosion and wear in the deep well environment, posing a risk of breakage, and the self-weight of the ultra-long steel wire rope significantly increasing power consumption and resulting in low hoisting efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution: The ultra-deep well cordless hoisting device includes: The transmission assembly includes a drive sprocket, with two sets of drive sprockets arranged symmetrically on the left and right. A driven sprocket is provided below the drive sprocket, with several driven sprockets. The outer walls of the drive sprocket and the driven sprocket are fitted together to drive the chain. Chain limiting clips are provided on the outer side of the driven sprocket and the chain. The suspended platform has a hoisting shaft rotatably connected to the top inner wall via bearings, and both ends of the hoisting shaft are fixedly connected to the insert shafts on the inner wall of the chain. The positioning component includes a guide rail, with two sets of guide rails symmetrically arranged on the left and right sides, and the lifting shaft is slidably connected to the sliding groove inside the guide rail.

[0006] In a preferred embodiment of this utility model, the transmission assembly includes a bracket, a power device is fixedly installed on the top outer wall of the bracket, the power device includes a transmission gearbox, the transmission gearbox is fixedly installed on the top of the bracket, the input shaft of the transmission gearbox is connected to a speed-reducing variable frequency motor, the inner wall of the transmission gearbox is symmetrically provided with first transmission gears on the left and right, two sets of first transmission gears are symmetrically provided on the left and right, the two first transmission gears and the output shaft of the speed-reducing variable frequency motor are connected through a drive shaft, the drive sprocket is rotatably connected to the bracket through a rotating shaft, the outer end of the rotating shaft is fixedly installed with a second transmission gear, the second transmission gear is meshed with the first transmission gear for transmission connection, and the speed-reducing variable frequency motor is used to synchronously drive the left and right sets of drive sprockets to rotate synchronously.

[0007] In a preferred embodiment of this utility model, the geared motor is fixedly installed on the outer wall of the bracket, the bearing seat is fixedly installed on the outer wall of the bracket, the driven sprocket is installed on the output shaft of the bearing seat, and the chain limit clamp and guide rail are installed on the outer wall of the bracket.

[0008] In a preferred embodiment of this utility model, the chain limiting clip is located outside the driven sprocket and the chain meshing position, and the inner wall of the chain limiting clip is rotatably connected to the limiting roller.

[0009] In a preferred embodiment of this utility model, the limiting rollers are located at the four corners of the inner walls on both sides of the chain limiting clip, and the outer wall of the limiting rollers is in rotatable contact with the outer wall of the chain.

[0010] In a preferred embodiment of the present invention, the middle part of the guide rail is a sliding groove, the sliding groove is a through structure, the sliding groove is set in a rounded rectangle shape, and the top two outer walls of the sliding groove are provided with a first notch, the first notch being located directly above the sliding groove.

[0011] In a preferred embodiment of this utility model, the first notch is used to allow the hoisting shaft to disengage from the guide rail and move remotely to the outer wall of the drive sprocket. The inner walls on both sides of the bottom of the slide groove are provided with a second notch. Guide rail bearings are installed on the outer walls on both sides of the hoisting basket. Two guide rail bearings are symmetrically arranged front and back. The two guide rail bearings are connected by a rotating shaft. The guide rail bearings cooperate with the inner wall of the guide rail for rolling and limiting.

[0012] In a preferred embodiment of this utility model, the inclination angle of the second notch is adapted to the movement angle of the outer wall of the driven sprocket at the bottom end, and the second notch is used to enable the hoisting shaft to disengage from the guide rail and move remotely to the outer wall of the driven sprocket.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

[0014] 1. The chain is precisely limited by the chain limit clamps and limit rollers. Combined with the guide rail grooves and the first and second notch grooves, the lifting shaft can be smoothly turned, which can effectively avoid problems such as chain derailment and basket jamming, and improve the reliability of continuous operation in ultra-deep well environment. 2. The power combination of variable frequency motor and geared motor can flexibly adjust the speed to adapt to different lifting requirements. At the same time, the rolling contact between the limit roller and the chain reduces friction loss, reduces energy consumption and extends the service life of the device. 3. Several sets of suspended basket structures can be set up on the chain at the same time for cyclic lifting operations. Each suspended basket acts as a counterweight structure, which improves the stability of the structure operation and the sustainability of the lifting work, enhances the practicality of the equipment and the structural stability, and facilitates the improvement of lifting operation efficiency. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the main structure of a ropeless hoisting device for ultra-deep wells. Figure 2 For ultra-deep well cordless hoisting devices Figure 1 Enlarged view of point A in the middle; Figure 3 For ultra-deep well cordless hoisting devices Figure 1 Enlarged view at point B in the middle; Figure 4 A schematic diagram of the chain limiting clamp structure in an ultra-deep well ropeless hoisting device; Figure 5 A schematic diagram of the basket installation structure in an ultra-deep well ropeless hoisting device; Figure 6 This is a schematic diagram of the guide rail structure in an ultra-deep well ropeless hoisting device. Figure 7 A schematic diagram of the first notch slot structure in an ultra-deep well ropeless hoisting device; Figure 8 This is a schematic diagram of the second notch slot structure in an ultra-deep well ropeless hoisting device. Figure 9 This is a schematic diagram of the drive component structure in an ultra-deep well ropeless hoisting device.

[0016] In the diagram: drive sprocket 100, bearing housing 110, driven sprocket 120, chain limit clip 130, limit roller 131, chain 140, guide rail 200, slide groove 210, first notch groove 220, second notch groove 230, hoisting basket 300, hoisting shaft 310, guide rail bearing 320, transmission gearbox 400, reduction variable frequency motor 410, first transmission gear 420, drive shaft 430, second transmission gear 440. Detailed Implementation

[0017] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0018] Example 1: As Figures 1-5 ,include: The transmission assembly includes a drive sprocket 100, with two sets of drive sprockets 100 arranged symmetrically on the left and right sides. A driven sprocket 120 is provided below the drive sprocket 100, with several driven sprockets 120. The outer walls of the drive sprocket 100 and the driven sprocket 120 are connected to the chain 140 through a transmission connection. Chain limiting clips 130 are provided on the outer sides of the driven sprocket 120 and the chain 140. The top inner wall of the suspended platform 300 is rotatably connected to the lifting shaft 310 via bearings, and both ends of the lifting shaft 310 are fixedly connected to the insert shafts on the inner wall of the chain 140. The positioning component includes a guide rail 200, with two sets of guide rails 200 symmetrically arranged on the left and right sides. The lifting shaft 310 is slidably connected to the slide groove 210 inside the guide rail 200.

[0019] The specific application scenario of this embodiment is as follows: two sets of symmetrically arranged active sprockets 100 cooperate with several driven sprockets 120 to drive the chain 140 in a cyclic transmission; the suspended platform 300 is fixedly connected to the chain 140 through the top lifting shaft 310 and moves synchronously with the chain 140; the left and right symmetrical guide rails 200 limit and guide the lifting shaft 310 through the internal sliding grooves 210 to ensure that the suspended platform remains stable during the lifting process. The suspended platform 300 can be set with several sets according to the requirements of deep well lifting, which facilitates continuous cyclic lifting operations and improves work efficiency. The chain limit clamps 130 position the meshing position of the driven sprockets 120 and the chain 140 to prevent the chain 140 from deviating, thus realizing the function of ropeless stable lifting and lowering in ultra-deep wells.

[0020] Example 2: Figures 1-3 and Figure 9The transmission assembly includes a bracket, with a power unit fixedly installed on the top outer wall of the bracket. The power unit includes a transmission gearbox 400, which is fixedly installed on the top of the bracket. The input shaft of the transmission gearbox 400 is connected to a speed-reducing variable frequency motor 410. The inner wall of the transmission gearbox 400 is symmetrically provided with first transmission gears 420 on the left and right sides. There are two sets of first transmission gears 420 symmetrically provided on the left and right sides. The two first transmission gears 420 and the output shaft of the speed-reducing variable frequency motor 410 are connected through a drive shaft 430. The driving sprocket 100 is rotatably connected to the bracket through a rotating shaft. The outer end of the rotating shaft is fixedly installed with a second transmission gear 440. The second transmission gear 440 is meshed with the first transmission gear 420 for transmission. The speed-reducing variable frequency motor 410 is used to synchronously drive the two sets of driving sprockets 100 on the left and right sides to rotate synchronously. The outer wall of the bracket is fixedly installed with a bearing seat 110. The driven sprocket 120 is installed on the output shaft of the bearing seat 110. The chain limit clip 130 and the guide rail 200 are installed on the outer wall of the bracket.

[0021] The specific application scenario of this embodiment is as follows: The geared variable frequency motor 410 transmits power to the first transmission gear 420 in the transmission gearbox 400 through the drive shaft 430. Then, through the meshing of the first transmission gear 420 and the second transmission gear 440, it synchronously drives the left and right sets of drive sprockets 100 to rotate, ensuring that the movement of the chains 140 on both sides is completely synchronized, avoiding tilting or jamming of the basket 300 due to power deviation on one side. The geared variable frequency motor 410 can flexibly adjust the output speed to adapt to the lifting requirements of different depths and different loads; the transmission gearbox 400 and the gear meshing structure ensure efficient power transmission. This invention reduces energy loss and is suitable for cordless lifting scenarios such as ultra-deep wells where high power stability and synchronization are required. It provides a power foundation for the safe and stable operation of the suspended platform. The number of teeth, module, and installation position of the two active sprockets 100 are strictly symmetrical to avoid transmission deviation caused by machining errors, thus providing a basic condition for synchronous output. All components involved in this invention are connected to external controllers in a conventional manner. The above structures and principles are all general standard parts or components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0022] Example 3: Figure 1 and Figure 5 The chain limiting clip 130 is located outside the meshing position of the driven sprocket 120 and the chain 140. The inner wall of the chain limiting clip 130 is rotatably connected to the limiting roller 131. The limiting roller 131 is located at the four corners of the inner walls on the left and right sides of the chain limiting clip 130. The outer wall of the limiting roller 131 is in rotatable contact with the outer wall of the chain 140.

[0023] The specific application scenario of this embodiment is as follows: The chain limiting clip 130 is set on the outer side of the meshing of the driven sprocket 120 and the chain 140. The limiting rollers 131 at the four corners of the inner wall of the chain limiting clip 130 roll in contact with the outer wall of the chain 140. Through the rolling guidance of the limiting rollers 131, the chain 140 is laterally limited to prevent it from derailing or shifting during meshing. It also reduces the frictional resistance between the chain 140 and the limiting clip 130, ensuring the smooth transmission of the chain 140 and improving the operating efficiency and service life of the device.

[0024] Example 4: Figures 6-8 The guide rail 200 has a groove 210 in the middle, which is a through structure and is a rounded rectangle. The top two outer walls of the groove 210 have first notches 220 located directly above it. These notches 220 are used to allow the lifting shaft 310 to disengage from the guide rail 200 and move onto the outer wall of the drive sprocket 100. The bottom two inner walls of the groove 210 have second notches 230. Guide rail bearings 320 are installed on the outer walls of both sides of the suspended platform 300. Two guide rail bearings 320 are symmetrically arranged at the front and back. The two guide rail bearings 320 are connected by a rotating shaft. The guide rail bearings 320 and the inner wall of the guide rail 200 are matched for rolling and limiting. The inclination angle of the second notch 230 is adapted to the movement angle of the outer wall of the driven sprocket 120 at the bottom end. The second notch 230 is used to allow the hoisting shaft 310 to disengage from the guide rail 200 and move remotely to the outer wall of the driven sprocket 120.

[0025] The specific application scenario of this embodiment is as follows: When the suspended platform 300 is circulating and lifting in the ultra-deep well, the slide groove 210 of the guide rail 200, through cooperation with the hoisting shaft 310 and the guide rail bearing 320, provides longitudinal limitation and guidance for the suspended platform 300, ensuring stability during linear movement. When the suspended platform 300 moves to the top drive sprocket 100, the hoisting shaft 310 can disengage from the slide groove 210 through the first notch 220, and achieve a change in direction with the rotation of the drive sprocket 100, such as changing from rising to falling. When the movement reaches the driven sprocket 120 at the bottom, the second notch 230 matches the movement angle of the driven sprocket 120, allowing the hoisting shaft 310 to smoothly disengage from the slide 210. As the driven sprocket 120 completes the direction change, such as from descending to ascending, the rolling contact between the guide bearing 320 and the inner wall of the guide rail 200 reduces frictional resistance and avoids movement jamming. The overall system achieves a smooth transition between linear movement and curved turning of the hoisting basket 300, ensuring the continuity and stability of the circulating lifting and lowering in the ultra-deep well.

[0026] The working principle of this utility model is as follows: When used by those skilled in the art, the speed-reducing variable frequency motor 410 drives the left and right symmetrical drive sprockets 100 to rotate synchronously through the transmission structure such as the transmission gearbox 400, the first transmission gear 420, and the second transmission gear 430. The drive sprockets 100 cooperate with several driven sprockets 120 to drive the chain 140 in a cyclic transmission. The suspended basket 300 is fixedly connected to the chain 140 through the top hoisting shaft 310 and moves synchronously with it. The left and right symmetrical guide rails 200 limit and guide the hoisting shaft 310 through the internal sliding groove 210. The guide rail bearings 320 roll contact with the inner wall of the guide rail 200 to reduce friction, while also having the following functions: With its excellent guiding function, the chain limit clamp 130 positions the chain 140 and the driven sprocket 120 at their meshing positions via the limit roller 131 to prevent the chain 140 from deviating. At the same time, the number of teeth, module, and installation position of the two driving sprockets 100 are strictly symmetrical to avoid transmission deviation. In addition, the first notch 220 and the second notch 230 of the guide rail 200 are adapted to the movement angles of the driving sprocket 100 and the driven sprocket 120, respectively, so that the hoisting shaft 310 can disengage from the slide groove 210 when passing the sprocket and complete the direction change with the rotation of the sprocket. Ultimately, this achieves the stable, continuous, and synchronous lifting and lowering function of the basket 300 in the ropeless hoisting device in the ultra-deep well.

[0027] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A cordless hoisting device for ultra-deep wells, characterized in that, include: The transmission assembly includes a drive sprocket (100), two sets of drive sprockets (100) are symmetrically arranged on the left and right sides, and a driven sprocket (120) is provided below the drive sprocket (100). There are several driven sprockets (120). The outer walls of the drive sprocket (100) and the driven sprocket (120) are connected to the transmission chain (140). A chain limiting clip (130) is provided on the outer side of the driven sprocket (120) and the chain (140). The top inner wall of the suspended basket (300) is rotatably connected to the hoisting shaft (310) via bearings, and the two ends of the hoisting shaft (310) are fixedly connected to the insert shaft on the inner wall of the chain (140). The positioning component includes a guide rail (200), which is symmetrically arranged in two sets on the left and right sides. The lifting shaft (310) is slidably connected to the slide groove (210) inside the guide rail (200).

2. The ultra-deep well cordless hoisting device according to claim 1, characterized in that, The transmission assembly includes a bracket, and a power device is fixedly installed on the top outer wall of the bracket. The power device includes a transmission gearbox (400), which is fixedly installed on the top of the bracket. The input shaft of the transmission gearbox (400) is connected to a speed-reducing variable frequency motor (410). The inner wall of the transmission gearbox (400) is symmetrically provided with first transmission gears (420), and two sets of first transmission gears (420) are symmetrically provided on the left and right sides.

3. The ultra-deep well cordless hoisting device according to claim 2, characterized in that, The two first transmission gears (420) and the output shaft of the speed-reduced variable frequency motor (410) are connected by a drive shaft (430). The drive sprocket (100) is rotatably connected to the bracket through a rotating shaft. The second transmission gear (440) is fixedly installed at the outer end of the rotating shaft. The second transmission gear (440) is meshed with the first transmission gear (420). The speed-reduced variable frequency motor (410) is used to synchronously drive the left and right sets of drive sprockets (100) to rotate synchronously. The outer wall of the bracket is fixedly installed with a bearing seat (110). The driven sprocket (120) is installed on the output shaft of the bearing seat (110). The chain limit clip (130) and the guide rail (200) are installed on the outer wall of the bracket.

4. The ultra-deep well cordless hoisting device according to claim 1, characterized in that, The chain limiting clip (130) is located outside the meshing position of the driven sprocket (120) and the chain (140), and the inner wall of the chain limiting clip (130) is rotatably connected to the limiting roller (131).

5. The ultra-deep well cordless hoisting device according to claim 4, characterized in that, The limiting roller (131) is located at the four corners of the inner walls on the left and right sides of the chain limiting clip (130), and the outer wall of the limiting roller (131) is in rotational contact with the outer wall of the chain (140).

6. The ultra-deep well cordless hoisting device according to claim 1, characterized in that, The guide rail (200) has a groove (210) in the middle. The groove (210) is a through structure. The groove (210) is set as a rounded rectangle. The top two outer walls of the groove (210) are provided with a first notch (220). The first notch (220) is located directly above the groove (210).

7. The ultra-deep well cordless hoisting device according to claim 6, characterized in that, The first notch (220) is used to allow the hoisting shaft (310) to disengage from the guide rail (200) and move to the outer wall of the drive sprocket (100). The inner walls of the bottom two sides of the slide groove (210) are provided with a second notch (230). The outer walls of the left and right sides of the basket (300) are equipped with guide rail bearings (320). Two guide rail bearings (320) are symmetrically arranged in front and behind. The two guide rail bearings (320) are connected by a rotating shaft. The guide rail bearings (320) and the inner wall of the guide rail (200) cooperate to roll and limit the movement.

8. The ultra-deep well cordless hoisting device according to claim 7, characterized in that, The inclination angle of the second notch (230) is adapted to the movement angle of the outer wall of the driven sprocket (120) at the bottom end. The second notch (230) is used to allow the hoisting shaft (310) to disengage from the guide rail (200) and move to the outer wall of the driven sprocket (120).

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