Cordless lifting device for ultra-deep well

Abstract

The invention discloses an ultra-deep well cordless lifting device which comprises a transmission assembly and a lifting assembly, the transmission assembly comprises a main driving chain wheel, a plurality of transition follow-up supporting chain wheels are arranged under the main driving chain wheel vertically, the number of the transition follow-up supporting chain wheels is multiple according to the lifting height, and the main driving chain wheel is in transmission connection with the transition follow-up supporting chain wheels; the lifting basket body assembly comprises a lifting basket body, a mine car lifting hook is fixedly installed on the outer wall of the lifting basket body, and the mine car lifting hook is connected with the chain and the lifting basket track in a matched mode. No matter a single group of chains or a plurality of groups of chains are adopted for transmission, effective transmission of power can be realized, and efficient transmission of the power in the whole transmission system is ensured by different arrangement modes and numbers of the chains.

Description

Technical Field

[0001] The invention relates to the technical field of lifting devices, in particular to a ropeless lifting device for an ultra-deep well. Background Art

[0002] With the progress of China's industrialization and the increase in the depth of mines, the traditional lifting method using wire ropes has begun to be limited by their own weight and strength. Within the range of tension that the wire rope can withstand, the net weight that can be lifted becomes smaller and smaller, reducing the lifting efficiency; when the wire rope tension limit is reached or exceeded, it cannot be used and needs to be lifted in sections, making the lifting process more complicated and inefficient, and it is not convenient to lift minerals from the bottom of ultra-deep mines to the ground. Summary of the invention

[0003] The object of the present invention is to provide an ultra-deep well ropeless lifting device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] Ultra-deep well ropeless lifting device, including:

[0006] A transmission assembly, wherein the transmission assembly comprises a main drive sprocket, each group of transmission assemblies is provided with a main drive sprocket, the main drive sprocket is located at the top of the transmission assembly, a transition follower sprocket is provided vertically below the main drive sprocket, a number of the transition follower sprockets are provided according to the lifting height, and the main drive sprocket and the plurality of transition follower sprockets are transmission-connected;

[0007] A basket body assembly, the basket body assembly includes a basket body, a mine car lifting hook is fixedly installed on the outer wall of the basket body, the mine car lifting hook is connected with a chain, the chain rotates to control the lifting and lowering of the basket body in the mine to adjust the height, the outer walls of the basket body are all rotatably connected to the limit rollers, and the limit rollers are rollingly connected to the basket track;

[0008] A counterweight is installed on the outer wall of the chain and cooperates with the basket body for transmission.

[0009] In a preferred embodiment of the present invention, the chain is a first chain, the transition follower sprocket is a first transition follower sprocket, a plurality of the first chains are provided, two of the first transition follower sprockets are provided inside and outside, the adjacent main drive sprocket and the first transition follower sprocket are meshingly connected to the first chain, and the two adjacent first transition follower sprockets are meshingly connected to the first chain.

[0010] Both outer walls of the basket body are fixedly installed with mine car lifting hooks. The inner walls of two groups of left and right first chains at the same height are connected to drive the basket body. The mine car lifting hooks are connected to the inner walls of the first chains in a clearance fit and insertion connection. The counterweight is a first counterweight block. The first counterweight block is connected to the outer wall of the first chain by a counterweight hook and is lifted and lowered to adjust the height as the first chain rotates. The first counterweight block can be replaced by a second basket body.

[0011] In a preferred embodiment of the present invention, the chain is a second chain 160, and the transition follow-up supporting sprocket is a second transition follow-up supporting sprocket 110-2. Two groups of the second chains 160 are symmetrically arranged on the left and right. The second chains 160 are meshed and drivingly connected to the outer walls of all the main driving sprockets 100 and the second transition follow-up supporting sprockets 110-2.

[0012] In a preferred embodiment of the present invention, the counterweight is a first counterweight block. The counterweight hook of the first counterweight block is on the outer wall of the second chain. Mine car lifting hooks are fixedly installed on both outer walls of the basket body. The basket body is installed between the two groups of second chains by being clamped and connected through the lifting hooks. The first counterweight block can be replaced by a second basket body.

[0013] In a preferred embodiment of the present invention, the chain is a second chain. There is one group of the second chains. A lifting hook is fixedly installed on one outer wall of the basket body. The lifting hook is fixedly connected to the outer wall of the second chain. The counterweight is a first counterweight block. The first counterweight block is connected to the outer wall of the second chain by hanging. The first counterweight block can be replaced by a second basket body.

[0014] In a preferred embodiment of the present invention, mine car lifting hooks are symmetrically and fixedly installed on both outer walls of the basket body. There are two groups of the transmission components, and the two groups of the transmission components are respectively located on the symmetrical sides of the basket body. The mine car lifting hooks are connected to the two groups of chains in cooperation.

[0015] In a preferred embodiment of the present invention, the transmission component includes a servo motor and a speed reducer. The output shaft of the servo motor is fixedly connected to the input shaft of the speed reducer. The output shaft of the speed reducer is fixedly and drivingly connected to the middle part of the main driving sprocket.

[0016] In a preferred embodiment of the present invention, a chain limit clip is arranged on the outer wall of the transition follow-up supporting sprocket. The chain limit clip is used for limiting the cooperation between the outer walls of the transition follow-up supporting sprocket and the chain, so that the transition follow-up supporting sprocket and the chain remain in a meshing state. Guide bearings are installed on both outer walls of the chain limit clip.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention.

[0018] 1. Through the cooperation of the servo motor, reduction gearbox, main drive sprocket, and transition follower sprocket with the chain, whether using a single set of chains or multiple sets of chain drives, effective power transmission can be achieved. The main drive sprocket transmits power to multiple transition follower sprockets via the chain, forming a complete transmission path. Different arrangements and quantities of chains in different embodiments ensure efficient power transmission throughout the transmission system.

[0019] 2. The chain limit clips and bearings on the transition follower sprockets ensure that the chain and sprocket always maintain a good meshing state, reduce chain wear, lower power loss, guarantee the stability and reliability of power transmission, and can meet the power requirements for ultra-deep well hoisting operations.

[0020] 3. The basket body and the chain are driven through various connection methods. Whether it is connected by hooks on both sides, fixed on one side, or connected by multiple groups around, the basket body can stably follow the chain up and down. The counterweight is combined with the basket body for transmission, balancing the weight of the basket body, reducing energy consumption, assisting in lifting, improving operation stability, facilitating multi-functional combined use under various working conditions, and enhancing the applicability of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0022] Figure 1 is the front view structural schematic diagram of the first embodiment in the ultra-deep well cordless hoisting device;

[0023] Figure 2 is in the ultra-deep well cordless hoisting device Figure 1 the enlarged view at A;

[0024] Figure 3 is the side view structural schematic diagram of the first embodiment in the ultra-deep well cordless hoisting device;

[0025] Figure 4 is the working structural schematic diagram of the chain limit clip in the ultra-deep well cordless hoisting device;

[0026] Figure 5 is the side view structural schematic diagram of the chain limit clip in the ultra-deep well cordless hoisting device;

[0027] Figure 6 is the top view structural schematic diagram of the chain limit clip in the ultra-deep well cordless hoisting device;

[0028] Figure 7Schematic structural diagrams of the second and third embodiments in the ultra-deep well cordless lifting device;

[0029] Figure 8 Schematic partial side structural diagrams of the second and third embodiments in the ultra-deep well cordless lifting device;

[0030] Figure 9 Schematic structural diagrams of the basket body of the first and second embodiments in the ultra-deep well cordless lifting device;

[0031] Figure 10 Schematic structural diagram of the basket body of the third embodiment in the ultra-deep well cordless lifting device;

[0032] Figure 11 Schematic structural diagram of the upper and lower docking of two basket bodies in the ultra-deep well cordless lifting device;

[0033] Figure 12 Schematic structural diagram of the basket body of the fourth embodiment in the ultra-deep well cordless lifting device.

[0034] In the figure: main drive sprocket 100, first transition follower support sprocket 110, second transition follower support sprocket 110-2, chain limit clip 111, guide rail bearing 112, first chain 120, reduction gearbox 130, servo motor 140, first counterweight 150, counterweight hook 151, second chain 160, guide rail support wheel 170, guide rail 180, guide rail wheel 190, basket body 200, mine car lifting hook 210, limit roller 220, mine shaft track 230. Detailed implementation manners

[0035] The following details the embodiments of the present invention. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0036] Embodiment 1: As shown in Figures 1-3 and Figure 9 , it includes:

[0037] A transmission assembly. The transmission assembly includes a main drive sprocket 100. Each group of transmission assemblies is provided with one main drive sprocket 100, and the main drive sprocket 100 is located at the topmost position of the transmission assembly. A transition follower support sprocket is provided vertically below the main drive sprocket 100. The number of transition follower support sprockets is several according to the lifting height. The main drive sprocket 100 and several transition follower support sprockets are drivingly connected;

[0038] The basket body assembly includes a basket body 200, a mine car lifting hook 210 is fixedly installed on the outer wall of the basket body 200, and the mine car lifting hook 210 is connected with a chain. The rotation of the chain is used to control the lifting and lowering of the basket body 200 in the mine. The outer walls of the basket body 200 are all rotatably connected to the limit rollers 220;

[0039] A counterweight, which is mounted on the outer wall of the chain and cooperates with the basket body 200 for transmission;

[0040] The chain is a first chain 120, the transition follower sprocket is a first transition follower sprocket 110, a plurality of first chains 120 are provided, two of the first transition follower sprocket 110 are provided inside and outside, the adjacent main drive sprocket 100 and the first transition follower sprocket 110 are meshed and connected to the first chain 120, and the adjacent two first transition follower sprockets 110 are meshed and connected to the first chain 120;

[0041] The outer walls of both sides of the basket body 200 are fixedly installed with a mine car lifting hook 210, and the basket body 200 is transmission-connected between the inner walls of the left and right groups of equal-height first chains 120. The mine car lifting hook 210 is plug-connected with the gap between the inner walls of the first chain 120. The counterweight is a first counterweight block 150, and the first counterweight block 150 is connected to the outer wall of the first chain 120 through a counterweight hook 151. The height is adjusted by the rotation of the first chain 120. The first counterweight block 150 can be replaced by a second basket body 200.

[0042] The specific usage scenario of this embodiment is as follows: After the servo motor 140 is started, it transmits power to the speed reducer 130. After the speed and torque are adjusted by the speed reducer 130, the main drive sprocket 100 is driven to rotate. The main drive sprocket 100 is sequentially meshed and driven with multiple transition follower sprockets through a number of first chains 120 to form a complete transmission path. The ore car lifting hooks 210 on both sides of the basket body 200 are inserted into the gaps on the inner walls of the left and right groups of first chains 120 at the same height, and are in transmission connection with the first chains 120. When the main drive sprocket 100 rotates, it drives the first chains 120 to run, thereby enabling the basket body 200 to lift and lower in the mine. The first counterweight 150 is hung on the outer wall of the first chain 120 and cooperates with the basket body 200. When the basket body 200 descends, the first counterweight 150 ascends to balance the weight of the basket body 200 and reduce the system energy consumption. When the basket body 200 ascends, the first counterweight 150 descends. As the first counterweight 150 rotates with the multiple first chains 120, it sequentially jumps to the next first chain 120 and is in a position opposite to the basket body 200 up and down for counterweight, assisting the basket body 200 to ascend. The limit rollers 220 around the basket body 200 are in contact with the inner wall of the mine and the guiding structure (not shown in the figure) on the outside, ensuring the stability of the basket body 200 during the lifting and lowering process and preventing shaking or deviation.

[0043] Embodiment 2: As Figures 7-9 , including: a transmission component, the transmission component includes a main drive sprocket 100. Each group of transmission components is provided with one main drive sprocket 100, and the main drive sprocket 100 is located at the topmost position of the transmission component. A transition follower sprocket is provided vertically below the main drive sprocket 100. There are a number of transition follower sprockets according to the lifting height. The main drive sprocket 100 and a number of transition follower sprockets are in transmission connection; a basket body component, the basket body component includes a basket body 200. The outer wall of the basket body 200 is fixedly installed with ore car lifting hooks 210. The ore car lifting hooks 210 are in cooperation connection with the chain. The rotation of the chain is used to control the lifting and lowering of the basket body 200 in the mine to adjust the height. The limit rollers 220 are rotatably connected to the outer walls around the basket body 200;

[0044] A counterweight is installed on the outer wall of the chain and cooperates with the basket body 200 for transmission;

[0045] The transition follower sprocket is a second transition follower sprocket 110-2. There are two groups of the second chains 160 symmetrically arranged left and right. The second chains 160 are meshed and driven on the outer walls of all the main drive sprockets 100 and the second transition follower sprockets 110-2;

[0046] The counterweight is a first counterweight block 150, and a counterweight hook 151 of the first counterweight block 150 is on the outer wall outside the second chain 160. The outer walls on both sides of the basket body 200 are fixedly installed with a mine car lifting hook 210. The basket body 200 is installed between the two sets of second chains 160 through the mine car lifting hook 210. The first counterweight block 150 can be replaced by a second basket body 200.

[0047] The specific usage scenario of this embodiment is as follows: the servo motor 140 drives the reduction box 130, the reduction box 130 drives the main drive sprocket 100 to rotate, and two groups of left-right symmetrical second chains 160 are meshed with the outer walls of all the main drive sprockets 100 and the transition follower sprocket to transmit the power of the main drive sprocket 100 to the entire transmission system;

[0048] The mine car lifting hooks 210 on both sides of the basket body 200 are stuck between the two groups of second chains 160. As the second chain 160 rotates, the lifting is realized. The first counterweight block 150 is fixed to the outer wall of the outer side of the second chain 160, forming a balanced relationship with the basket body 200. When the basket body 200 moves downward, the first counterweight block 150 moves upward, and vice versa, ensuring the stable operation of the lifting device. The limiting rollers 220 around the basket body 200 are in contact with the mine wall to limit the lateral movement of the basket body and ensure that the basket body is lifted and lowered smoothly in the vertical direction. At the same time, more than two groups of any number of transmission components can be set according to the usage situation, so that the two adjacent groups of second chains 160 are matched to connect the basket body 200, so that multiple groups of basket bodies 200 can complete synchronous lifting and lifting, and improve work efficiency through combined use.

[0049] Embodiment 3: Figure 7 , Figure 8 and Figure 10 , including: a transmission assembly, the transmission assembly includes a main drive sprocket 100, each group of transmission assemblies is provided with a main drive sprocket 100, the main drive sprocket 100 is located at the top of the transmission assembly, a transition follower sprocket is vertically provided below the main drive sprocket 100, and a plurality of transition follower sprockets are provided according to the lifting height, and the main drive sprocket 100 and the plurality of transition follower sprockets are transmission-connected;

[0050] The basket body assembly includes a basket body 200, a mine car lifting hook 210 is fixedly installed on the outer wall of the basket body 200, and the mine car lifting hook 210 is connected with a chain. The rotation of the chain is used to control the lifting and lowering of the basket body 200 in the mine. The outer walls of the basket body 200 are all rotatably connected to the limit rollers 220;

[0051] A counterweight, which is mounted on the outer wall of the chain and cooperates with the basket body 200 for transmission;

[0052] The chain is the second chain 160, and a group of second chains 160 are provided. On one side outer wall of the basket body 200, a mine car lifting hook 210 is fixedly installed. The mine car lifting hook 210 is fixedly connected to the outer wall of the second chain 160. The counterweight is the first counterweight block 150. The first counterweight block 150 is hung and connected to the outer side outer wall of the second chain 160, and the first counterweight block 150 can be replaced by a second basket body 200.

[0053] The specific use scenario of this embodiment is as follows: The servo motor 140 drives the main drive sprocket 100 through the speed reducer 130. The main drive sprocket 100 drives a group of second chains 160 to move. The mine car lifting hook 210 on one side of the basket body 200 is fixedly connected to the outer wall of the second chain 160, so that the basket body 200 is linked with the chain. The first counterweight block 150 is installed on the outer side outer wall of the second chain 160 and balances with the basket body 200. When the main drive sprocket 100 rotates and the second chain 160 runs, the basket body 200 rises and falls in the mine shaft, and the first counterweight block 150 moves in the opposite direction synchronously, reducing the power consumption during the operation of the lifting device. The limiting rollers 220 around the basket body 200 play a guiding and stabilizing role, preventing the basket body from tilting due to uneven force during the lifting and lowering process, and ensuring the stable operation of the basket body along the established track.

[0054] Embodiment 4: As Figure 1 、 Figure 2 、 Figure 3 、 Figure 11 and Figure 12 , including: a transmission assembly, the transmission assembly includes a main drive sprocket 100. Each group of transmission assemblies is provided with one main drive sprocket 100, and the main drive sprocket 100 is located at the topmost position of the transmission assembly. A transition follower supporting sprocket is provided vertically below the main drive sprocket 100. There are several transition follower supporting sprockets according to the lifting height, and a transmission connection is provided between the main drive sprocket 100 and the several transition follower supporting sprockets;

[0055] A basket body assembly, the basket body assembly includes a basket body 200. A mine car lifting hook 210 is fixedly installed on the outer wall of the basket body 200. The mine car lifting hook 210 is in cooperation connection with the chain. The rotation of the chain is used to control the lifting and lowering of the basket body 200 in the mine shaft to adjust the height. The limiting rollers 220 are rotatably connected to the outer walls around the basket body 200;

[0056] A counterweight, the counterweight is installed on the outer wall of the chain and is in cooperation transmission with the basket body 200;

[0057] Mine car lifting hooks 210 are fixedly installed on the outer walls around the basket body 200. There are four groups of transmission assemblies, and the four groups of transmission assemblies are respectively located around the basket body 200. The mine car lifting hook 210 is fixedly connected in cooperation with the four groups of chains.

[0058] The specific usage scenario of this embodiment is as follows: The main drive sprocket 100 rotates under the drive of the servo motor 140 and the speed reducer 130, and drives the surrounding transition follower sprockets through the chain. The mine car lifting hooks 210 are installed around the basket body 200 and are respectively connected to the chains of the four groups of transmission components;

[0059] When the main drive sprocket 100 rotates, the four groups of chains move synchronously, jointly driving the lifting and lowering of the basket body 200. The four groups of transmission components apply forces to the basket body 200 from four directions. Compared with other embodiments, it can better disperse the weight of the basket body and the forces during operation, enhancing the stability of the basket body. The limit rollers 220 around the basket body 200 are in contact with the mine wall, further ensuring that the basket body remains balanced during the lifting and lowering process and preventing tilting or jamming.

[0060] Embodiment Five: As Figures 4-6 , the transmission component includes a servo motor 140 and a speed reducer 130. The output shaft of the servo motor 140 is fixedly connected to the input shaft of the speed reducer 130, and the output shaft of the speed reducer 130 is fixedly and drivingly connected to the middle of the main drive sprocket 100; The outer wall of the transition follower sprocket is provided with a chain limit clip 111, and the chain limit clip 111 is used to limit the outer walls of the transition follower sprocket and the chain in cooperation, so that the transition follower sprocket and the chain remain in a meshing state. Guide bearings 112 are installed on the outer walls on both sides of the chain limit clip 111.

[0061] The specific usage scenario of this embodiment is as follows: The servo motor 140 outputs power, which is adjusted by the speed reducer 130 and then transmitted to the main drive sprocket 100, causing the main drive sprocket 100 to rotate. The chain limit clip 111 on the outer wall of the transition follower sprocket limits the chain, ensuring that the chain always remains in a meshing state with the transition follower sprocket and preventing the chain from falling off during the transmission process. The guide bearings 112 installed on the inner walls on both sides of the chain limit clip 111 reduce the friction between the chain and the limit clip, reduce wear, improve the service life and transmission efficiency of the chain. The tooth pitch between the outer walls of the main drive sprocket 100 and the transition follower sprocket is shorter than the length of the chain, enabling the follower teeth to bear the weight of the upper chain, enhancing the stability and reliability of the transmission system, and providing guarantee for the stable operation of the entire lifting device.

[0062] The working principle of the present invention is as follows: When those skilled in the art use it, in terms of power transmission, the servo motor 140 serves as the core power source, and the output power is transmitted to the speed reducer 130. After the speed reducer 130 adjusts the speed and torque, it drives the main driving sprocket 100 to rotate. The main driving sprocket 100, as a key component of the transmission system, transmits power to multiple transitional follower sprockets through a chain. In different embodiments, the first chain 120 or the second chain 160 is used, and there are differences in the number and arrangement of the chains, but the effective transmission of power in the entire transmission system is achieved. The lifting of the basket body 200 depends on its connection with the chain. The basket body 200 cooperates with the chain through the mine car lifting hook 210 or the lifting hook. When the chain rotates under the action of the main driving sprocket 100 and the transitional follower sprockets, it drives the basket body 200 to rise or fall in the mine. In each embodiment, the connection method and connection position of the basket body 200 and the chain are different, but it is ensured that the basket body can move along with the chain to complete the transportation of materials or personnel. The counterweight plays a balancing role during the operation of the device. A common counterweight is the first counterweight block 150, which is fixedly installed on the outer wall of the chain and cooperates with the basket body 200 for transmission. When the basket body 200 descends, the counterweight block rises to balance the weight of the basket body and reduce power consumption; when the basket body 200 rises, the counterweight block descends to assist the basket body in rising, improving the stability and efficiency of the device operation. In some embodiments, the counterweight block can be replaced with a second basket body 200 to achieve two-way transportation and further optimize the device performance. In addition, components such as the limit roller 220, chain limit clip 111, and guide rail bearing 112 in the device also play important roles. The limit roller 220 is installed around the basket body 200 and contacts the inner wall of the mine to limit the lateral movement of the basket body and ensure that the basket body runs smoothly in the vertical direction during the lifting process; the chain limit clip 111 limits the chain to ensure that the chain always remains engaged with the transitional follower sprockets and prevent the chain from falling off; the guide rail bearing 112 reduces the friction between the chain and the limit clip, reduces wear, and improves the service life and transmission efficiency of the chain. These components work together to jointly ensure the stable and reliable operation of the ultra-deep well rope-free lifting device in a complex mine environment.

[0063] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and purposes of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. The ultra-deep well cordless hoisting device is characterized in that, Comprising: A transmission assembly, the transmission assembly includes a main drive sprocket (100), each set of transmission assemblies is provided with one main drive sprocket (100), the main drive sprocket (100) is located at the topmost position of the transmission assembly, a transition follower supporting sprocket is provided vertically below the main drive sprocket (100), and a number of the transition follower supporting sprockets are provided according to the lifting height, and the main drive sprocket (100) and the number of transition follower supporting sprockets are drivingly connected; A basket body assembly, the basket body assembly includes a basket body (200), a mine car lifting hook (210) is fixedly installed on the outer wall of the basket body (200), the mine car lifting hook (210) is cooperatively connected with a chain, and the rotation of the chain is used to control the lifting and height adjustment of the basket body (200) in the mine shaft. The outer walls around the basket body (200) are all rotatably connected with limit rollers (220), and the limit rollers (220) are in rolling connection with a basket track (230); A counterweight, the counterweight is installed on the outer wall of the chain and is cooperatively driven with the basket body (200).

2. The cordless hoisting device for ultra-deep wells according to claim 1, characterized in that The chain is a first chain (120), the transition follower supporting sprocket is a first transition follower supporting sprocket (110), a number of the first chains (120) are provided, there are two inside and outside the first transition follower supporting sprocket (110), and the first chain (120) is meshingly drivingly connected between the adjacent main drive sprocket (100) and the first transition follower supporting sprocket (110), and the first chain (120) is meshingly drivingly connected between the adjacent two first transition follower supporting sprockets (110).

3. The ultra-deep well cordless lifting device according to claim 2, characterized in that, Mine car lifting hooks (210) are fixedly installed on the outer walls on both sides of the basket body (200), the basket body (200) is drivingly connected between the inner walls of the left and right groups of first chains (120) at the same height, the mine car lifting hook (210) is in clearance fit and inserted connection with the inner wall of the first chain (120), the counterweight is a first counterweight block (150), the first counterweight block (150) is cooperatively hooked with the outer wall of the first chain (120) through a counterweight hook (151), and the height is adjusted by lifting and lowering along with the rotation of the first chain (120), and the first counterweight block (150) can be replaced with a second basket body (200).

4. The ultra-deep well cordless lifting device according to claim 1, characterized in that, The chain is a second chain (160), the transition follower supporting sprocket is a second transition follower supporting sprocket (110-2), two groups of the second chains (160) are symmetrically arranged left and right, and the second chains (160) are meshingly drivingly connected to the outer walls of all the main drive sprockets (100) and the second transition follower supporting sprockets (110-2).

5. The ultra-deep well cordless lifting device according to claim 4, characterized in that, The counterweight is a first counterweight block (150), the counterweight hook (151) of the first counterweight block (150) is installed on the outer side wall of the second chain (160), mine car lifting hooks (210) are fixedly installed on the outer walls on both sides of the basket body (200), and the basket body (200) is cooperatively clamped and installed between the two groups of the second chains (160) through the mine car lifting hooks (210), and the first counterweight block (150) can be replaced with a second basket body (200).

6. The ultra-deep well cordless lifting device according to claim 1, characterized in that, The chain is the second chain (160), and the second chain (160) is a set. A mine car lifting hook (210) is fixedly installed on an outer wall of one side of the basket body (200). The mine car lifting hook (210) is fixedly connected to the outer wall of the second chain (160). The counterweight is the first counterweight block (150), and the first counterweight block (150) is connected to the outer side wall of the second chain (160) by a hook. The first counterweight block (150) can be replaced by a second basket body (200).

7. The cordless hoisting device for ultra-deep wells according to claim 1, characterized in that, Mine car lifting hooks (210) are symmetrically and fixedly installed on both sides of the outer wall of the basket body (200). There are two sets of transmission components, and the two sets of transmission components are respectively located on the symmetric sides of the basket body (200). The mine car lifting hook (210) is fixedly connected in cooperation with the two sets of chains.

8. The ultra-deep well cordless lifting device according to claim 1, characterized in that The transmission component includes a servo motor (140) and a speed reducer (130). The output shaft of the servo motor (140) is fixedly connected to the input shaft of the speed reducer (130). The output shaft of the speed reducer (130) is fixedly and drivingly connected to the middle of the main driving sprocket (100).

9. The ultra-deep well cordless lifting device according to claim 8, characterized in that, A chain limit clip (111) is provided on the outer wall of the transition follower sprocket. The chain limit clip (111) is used for limiting the cooperation between the outer walls of the transition follower sprocket and the chain, so that the transition follower sprocket and the chain remain in a meshing state. Guide bearings (112) are installed on both outer walls of the chain limit clip (111).

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