A large-diameter main drive disassembling device and method in a hole

Abstract

The application provides a large-diameter main drive disassembling device and method in a hole, and relates to the field of shield machines.The device comprises a base with upper and lower platforms, a sliding block arranged on the lower platform and sliding along the length direction of the lower platform, and two receiving holes arranged on the upper platform; a connecting assembly comprising a first connecting element, a second connecting element and a third connecting element, the first and second connecting elements being respectively arranged on the main drive, the two third connecting elements being respectively arranged on the width direction of the upper platform, and the third connecting element being hingedly connected with the second connecting element; a disassembling assembly comprising first and second telescopic elements, the first telescopic element being connected with the first connecting element and the sliding block, and the second telescopic element being hingedly connected with the sliding block; and a supporting assembly arranged below the receiving holes. In the application, the cooperation of the first and second telescopic elements can make the disassembling device select elements with smaller length and stroke, so that the volume of the disassembling device is smaller and the disassembling device is more suitable for disassembling the main drive in a hole.

Description

Technical Field

[0001] The present invention relates to the field of shield machines, and in particular to a large-diameter main drive disassembly device and a disassembly method in a tunnel. Background Art

[0002] The shield method enables integrated excavation, slag removal, and support construction. Its advantages include high efficiency, safety, and minimal environmental impact on surface facilities, making it widely used in tunnel construction. As large-section excavations become increasingly common in tunnel construction, the use of ultra-large diameter atmospheric pressure shields is becoming increasingly common.

[0003] Because the main drive of an ultra-large diameter shield machine is a large-sized and overweight structural component, usually, when the shield machine completes tunnel excavation, it will be hoisted out through the receiving shaft at the tunnel breakthrough site. However, in some projects, due to complex ground conditions and dense buildings at the tunnel breakthrough site, the shield machine needs to be disassembled inside the tunnel and the parts transported out. In the absence of indoor conditions for expanding the tunnel, the traditional method of disassembling the main drive using lifting tools such as hand hoists will face problems such as difficult operation, low degree of automation, and high risk. How to safely and efficiently disassemble the main drive within the current tunnel space is an engineering problem that needs to be solved in current ultra-large diameter construction. Summary of the Invention

[0004] In order to improve the efficiency, safety, economy and automation of the in-tunnel disassembly of the main drive of a large-diameter shield machine, the present application provides an in-tunnel large-diameter main drive disassembly device and disassembly method.

[0005] In order to achieve the above-mentioned object, an embodiment of the present invention provides a large-diameter main drive disassembly device in a hole, comprising:

[0006] The base comprises an upper platform and a lower platform provided below the upper platform, the upper platform and the lower platform having a length direction and a width direction, the lower platform is further provided with a slider having a sliding direction parallel to the length direction of the lower platform, and two sliders are provided on the lower platform at intervals along the width direction of the lower platform; the upper platform is provided with two receiving holes at intervals in the length direction;

[0007] A connecting assembly comprising a first connecting element, a second connecting element and a third connecting element, wherein the two first connecting elements and the two second connecting elements are respectively used to be fixed on the main drive, the two first connecting elements are higher than the two second connecting elements, the two third connecting elements are respectively fixed in the width direction of the upper platform, and the third connecting elements are hinged to the second connecting elements;

[0008] The disassembly assembly includes a first telescopic element and a second telescopic element, wherein one end of the first telescopic element is hinged to the first connecting element and the other end is hinged to the slider, and one end of the second telescopic element is fixed to the lower platform and the other end is hinged to the slider;

[0009] The supporting assembly includes a lifting element and a bearing plate. The lifting element pushes the bearing plate to move up and down, and the bearing plate is located below the receiving hole.

[0010] Preferably, the upper platform is further provided with a transport rail, which extends along the length direction of the upper platform. Two transport rails are spaced apart along the width direction of the upper platform, and the two transport rails are located on both sides of the two receiving holes.

[0011] Preferably, at least two load-bearing walls are provided between the upper platform and the lower platform, and two ends of the load-bearing walls are fixedly connected to the upper platform and the lower platform respectively.

[0012] Preferably, the transport rail is recessed in the upper platform.

[0013] Based on the same inventive concept, the present application also provides a disassembly method, which uses the aforementioned large-diameter main drive disassembly device in a hole, comprising:

[0014] S10. Build a disassembly device and fix the first connecting element and the second connecting element to the main drive respectively;

[0015] S20. Disassemble the main drive, including:

[0016] S21. Maintain the length of the first telescopic element, shorten the length of the second telescopic element, and stop working when the first angle α1 between the first telescopic element and the main drive plane is a right angle;

[0017] S22. Shorten the length of the first telescopic element, extend the length of the second telescopic element so that the main drive is parallel to the upper platform and the first telescopic element is shortened to its shortest state;

[0018] S30. Undertake the main drive and install the transport components, including:

[0019] S31. The lifting element pushes the load plate up and contacts the main drive, carrying the full weight of the main drive;

[0020] S32. Remove the connection assembly and disassemble the assembly, and install the transport assembly on the main drive, the transport assembly is a transport wheel;

[0021] S40. Place and transport the main drive, including:

[0022] S41. Lower the height of the lifting element so that the transport wheel falls into the transport rail;

[0023] S42. Use traction equipment to pull the main drive out of the upper platform.

[0024] Preferably, the step S10 further includes S11 and S12, wherein:

[0025] S11. Adjust the height of the upper platform so that the upper platform is lower than the lower edge of the main drive, the second connecting element is detachably provided on the main drive, and the height of the second connecting element and the upper platform is h1;

[0026] S12. Based on the diameter D of the main drive, obtain a height h2 of the first connecting element on the main drive, where the first connecting element is detachably disposed on the main drive, and the height h2 of the first connecting element on the main drive satisfies:

[0027]

[0028] Preferably, the length L1 and the stroke S1 of the first telescopic element are obtained based on Formula 2 and Formula 3, where Formula 2 is:

[0029]

[0030] In formula 2, α1 and α2 are complementary angles;

[0031] Formula 3 is:

[0032] min L1

[0033] min S1

[0034] maxα 2,min

[0035] maxα 1,min

[0036] stD / 2≤h2≤D

[0037] L1+S1≥h1+h2;

[0038] The length L2 and stroke S2 ​​of the second telescopic element are obtained based on Formula 4, which is:

[0039]

[0040] The length L3 of the lifting element and the shape S3 are obtained based on Formula 5, which is:

[0041] min L3

[0042] min S3

[0043] stL3+S3≥h1

[0044] L3≤h1.

[0045] Preferably, the sliding distance L4 of the slider and the distance S4 between the slider and the main drive in the horizontal direction are obtained based on Formula 6, which is:

[0046]

[0047] Preferably, the length L5 of the base is obtained based on Formula 7, which is:

[0048]

[0049] Preferably, the relationship between the shortening amount ΔS1 of the first telescopic element and the extending amount ΔS2 of the second telescopic element in step S22 is obtained based on Formula 8, where Formula 8 is:

[0050]

[0051] ΔS 1,max =S1

[0052]

[0053] The above solution of the present invention has the following beneficial effects:

[0054] In this application, the coordination of the first and second telescopic elements allows the disassembly device to use elements with smaller lengths and strokes, making the disassembly device smaller and more suitable for disassembling the main drive within the hole. Furthermore, by limiting the lengths and strokes of the first and second telescopic elements, the shear loads on the first and second telescopic elements can be reduced, thereby improving the safety of the disassembly device.

[0055] Furthermore, the present application also associates the size of the main drive, the installation height of the first connecting element and the second connecting element, and the length and stroke of the first telescopic element and the second telescopic element to form associated parameters. When facing different main drives, the size of each component can be quickly obtained, and the size of each component can be quickly adjusted according to different usage scenarios, thereby improving the universality and versatility of the disassembly device.

[0056] Finally, during the disassembly process, the main drive and the base are connected via the second connecting element and the third connecting element, thereby improving safety during the disassembly process.

[0057] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0058] Figure 1a It is the overall structural axonometric drawing of this application;

[0059] Figure 1b This is the main view of the overall structure of this application;

[0060] Figure 2 It is a schematic diagram of the overall structure of the disassembled components;

[0061] Figure 3 It is a schematic diagram of the overall structure of the abutment;

[0062] Figure 4 It is a schematic diagram of the overall structure of the receiving component;

[0063] Figure 5 It is a front view of step S21 in the disassembly method;

[0064] Figure 6 It is a front view of step S22 in the disassembly method;

[0065] Figure 7 It is a front view of step S31 in the disassembly method;

[0066] Figure 8a is a schematic diagram of step S41 in the disassembly method;

[0067] Figure 8b It is a side view of step S41 in the disassembly method.

[0068] [Description of Reference Numerals]

[0069] 1- Main drive;

[0070] 2-disassembly device, 21-connection assembly, 211-first connection element, 212-second connection element, 213-third connection element, 22-disassembly assembly, 221-first telescopic element, 222-second telescopic element, 223-slider, 224-slide, 23-base, 231-upper platform, 232-lower platform, 233-receiving hole, 234-load-bearing wall, 235-transport rail, 24-support assembly, 241-lifting element, 242-carrying plate;

[0071] 31- Transport wheel. DETAILED DESCRIPTION

[0072] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0073] like Figure 1a-Figure 4 As shown, an embodiment of the present invention provides an in-tunnel large-diameter main drive disassembly device, which can disassemble the main drive 1 in the construction tunnel without setting up a hanging shaft, and has a wider application prospect.

[0074] Specifically, the large-diameter main drive dismantling device in a hole includes a base 23, which includes an upper platform 231 and a lower platform 232. The upper platform 231 is disposed above the lower platform 232. Both the upper platform 231 and the lower platform 232 have a length direction and a width direction, and the length and width directions of the upper platform 231 and the lower platform 232 are consistent. A slider 223 is also disposed on the lower platform 232. The slider 223 has a sliding direction that is parallel to the length direction of the lower platform 232. Two sliders 223 are provided, and the two sliders 223 are spaced apart along the width direction of the lower platform 232. The upper platform 231 also has two receiving holes 233, and the two receiving holes 233 are disposed along the length direction of the upper platform 231.

[0075] The disassembly device 2 also includes a connecting assembly 21, which includes a first connecting element 211, a second connecting element 212 and a third connecting element 213. The two first connecting elements 211 and the two second connecting elements 212 are respectively used to be fixed on the main drive 1, and the two first connecting elements 211 are higher than the two second connecting elements 212. The two third connecting elements 213 are respectively fixed in the width direction of the upper platform 231, and the third connecting element 213 is hinged to the second connecting element 212.

[0076] In the embodiment of the present application, the first connecting element 211 and the second connecting element 212 are bolted to the main drive 1. The arrangement of the screws aligns with the mounting screw holes on the outer diameter of the main drive 1 to prevent damage to the main drive 1. When connecting the second connecting element 212 to the main drive 1, the lower edge of the main drive 1 is higher than the upper platform 231, and the second connecting element 212 is located at a distance h1 from the upper platform 231. The first connecting element 211 is fixed at a distance h2 from the lower edge of the main drive 1, where D / 2 ≤ h2 ≤ D. Two third connecting elements 213 are detachably mounted on the upper platform 231 to ensure connection strength and enhance safety during disassembly.

[0077] The disassembly device 2 also includes a disassembly assembly 22, which includes a first telescopic element 221 and a second telescopic element 222, wherein the first telescopic element 221 is hinged to the first connecting element 211, and the other end is hinged to the slider 223, and one end of the second telescopic element 222 is fixed to the lower platform 232, and the other end is hinged to the slider 223.

[0078] In an embodiment of the present application, two groups of first telescopic elements 221 and second telescopic elements 222 are respectively provided, and the two groups of first telescopic elements 221 and second telescopic elements 222 are respectively arranged in the width direction of the lower platform 232. The two groups of first telescopic elements 221 and second telescopic elements 222 can provide stable support for the main drive 1.

[0079] The first telescopic element 221 and the second telescopic element 222 are oil cylinders or electric push rods.

[0080] Furthermore, a slide groove 224 is provided in the width direction of the lower platform 232. The length of the slide groove 224 is L4. The slider 223 only slides in the slide groove 224, that is, the sliding distance of the slider 223 is also L4; the distance between the slide groove 224 and the main drive 1 is S4.

[0081] The provision of the chute 224 improves its ability to withstand the load applied by the slider 223, thereby enhancing safety. Furthermore, both ends of the first telescopic element 221 are movably connected (i.e., hinged), facilitating the adjustment of the spatial configuration of the first telescopic element 221 and achieving the effect of carrying a smaller shear load. The fixed end of the second telescopic element 222 is secured to the lower platform 232, ensuring load-bearing stability. The movable end of the second telescopic element 222 is connected to the first telescopic element 221 via the slider 223, coordinating with the spatial configuration of the first telescopic element 221 and bearing a portion of the load, indirectly improving the overall stability of the disassembly assembly 22.

[0082] The disassembly device 2 also includes a support assembly 24, which includes a lifting element 241 and a supporting plate 242. The lifting element 241 pushes the supporting plate 242 to move up and down. The supporting plate 242 is located below the receiving hole 233. The supporting plate 242 passes through the receiving hole 233 to abut against the flat main drive 1.

[0083] Furthermore, a transport rail 235 is provided on the upper platform 231. The transport rail 235 extends along the length direction of the upper platform 231. Two transport rails 235 are arranged along the width direction of the upper platform 231, and the two receiving holes 233 are located between the two transport rails 235. The transport rail 235 is used to guide the translation movement of the disassembled main drive 1.

[0084] In this embodiment, the transport rail 235 is recessed in the upper platform 231. When transporting the main drive 1, a transport component is installed on the main drive 1. The transport component is the transport wheel 31. The transport wheel 31 runs in the transport rail 235 and is guided and limited by the transport rail 235.

[0085] Furthermore, the base 23 also includes a load-bearing wall 234 . There are at least two load-bearing walls 234 . The multiple load-bearing walls 234 are respectively arranged between the upper platform 231 and the lower platform 232 to support the upper platform 231 and improve the stability of the base 23 .

[0086] Based on the aforementioned in-hole large-diameter main drive disassembly device, the present application provides a disassembly method, comprising the following steps:

[0087] S10. Build the disassembling device 2 and fix the first connecting element 211 and the second connecting element 212 on the main drive 1 respectively.

[0088] S11. Before setting up the disassembly device 2, measure the diameter D of the main drive 1 and level the foundation surface. Ensure that when the disassembly device 2 is placed on the foundation surface, the upper platform 231 is lower than the lower edge of the main drive 1. After obtaining the diameter D and leveling the foundation surface, secure the second connecting element 212 to the main drive 1. At this point, the height between the second connecting element 212 and the upper platform is h1.

[0089] S12. Based on the obtained diameter D of the main drive 1, calculate the height h2 of the first connecting element 211 on the main drive 1, where h2 satisfies D / 2≤h2≤D. Fix the first connecting element 211 to the main drive 1 according to the calculated height of the first connecting element 211.

[0090] S13 . Install the third connecting element 213 on the upper platform 231 .

[0091] S20. Disassemble the main drive 1 and combine Figure 5 and Figure 6 , specifically including:

[0092] S21. Maintain the length of the first telescopic element 221 and shorten the length of the second telescopic element 222. The main drive 1 now tilts, forming a first angle α1 between the plane of the main drive 1 and the first telescopic element 221. As the main drive 1 tilts, the first angle α1 gradually increases, and the lateral load on the first telescopic element 221 gradually decreases. When the first angle α1 reaches a right angle, the second telescopic element 222 ceases operation, maintaining its current telescopic range. At this point, the load on the first telescopic element 221 is entirely axial, with no shear load.

[0093] S22 . Shorten the length of the first telescopic element 221 and extend the second telescopic element 222 until the main drive 1 is parallel to the upper platform 231 and the first telescopic element 221 is shortened to the shortest state.

[0094] When the first telescopic element 221 is shortened to its minimum, the cooperation between the first telescopic element 221 and the second telescopic element 222 makes the second angle α2 between the first telescopic element 221 and the plane of the main drive 1 as large as possible. At this time, the shear load on the first telescopic element 221 is smaller, and the safety and economy of disassembling the assembly 22 are improved.

[0095] S30. Take over the main drive 1 and install the transport components, including:

[0096] S31. When the main drive 1 is parallel to the upper platform 231, refer to Figure 7, maintaining the current length and load of the first telescopic element 221 and the second telescopic element 222 unchanged, raising the two lifting elements 241, and driven by the two lifting elements 241, the bearing plate 242 extends from the receiving hole 233 and abuts against the main drive 1, bearing the entire weight of the main drive 1;

[0097] S32. At this point, the first connecting element 211 and the second connecting element 212 on the main drive 1 are removed, and the third connecting element 213 is removed from the upper platform 231. The main drive 1 is disconnected from the connecting assembly 21 and the disassembly assembly 22. The transport assembly is then installed on the main drive 1, and the main drive 1 is prepared for transport. In this application, the transport assembly is a transport wheel 31. Preferably, the transport wheel 31 is mounted on the main drive 1 via a flange with screw holes. Again, the flange size and screw hole placement are consistent with the motor mounting holes on the main drive 1, ensuring that the main drive 1 is not damaged. Multiple transport wheels 31 are evenly distributed around the circumference of the main drive 1 to improve transport stability.

[0098] S40. Place and transport the main drive 1. Specifically:

[0099] S41. Reference Figure 8a and 8b Lower the lifting element 241 so that the transport wheels 31 fall into the transport rails 235. The transport rails 235 restrict the direction of the transport wheels 31 and ensure stability in the transport direction. The lower limit of the support plate 242 should be parallel to or lower than the upper platform 231 to prevent the support plate 242 from obstructing transportation.

[0100] S42. When the carrying plate 242 reaches the lower limit, an external traction device is used to pull the main drive 1 along the transport rail 235 into the rear culvert.

[0101] In this application, considering the limitations of the cave environment, the specifications of the disassembled components 22 are also restricted, specifically:

[0102] The height h2 of the first connecting element 211 on the main drive 1 is obtained based on Formula 1, where Formula 1 is:

[0103] D / 2≤h2≤D

[0104] The length L1 and the stroke S1 of the first telescopic element 221 are obtained based on Formula 2 and Formula 3, where Formula 2 is:

[0105]

[0106] In formula 2, α1 and α2 are complementary angles;

[0107] Formula 3 is:

[0108] min L1

[0109] min S1

[0110] maxα 2,min

[0111] maxα 1,min

[0112] stD / 2≤h2≤D

[0113] L1+S1≥h1+h2;

[0114] Based on Formula 2 and Formula 3, in step S22, the first telescopic element 221 is shortest and the second angle between it and the plane of the main drive 1 is smallest. At this time, the volume of the disassembly device 2 is minimized, and the shear load borne by the first telescopic element 221 is minimized, which can greatly improve the safety of the disassembly device 2.

[0115] The length L2 and the stroke S2 ​​of the second telescopic element 222 are obtained based on Formula 4, which is:

[0116]

[0117] In formula 4, the stroke of the second telescopic element 222 meets the requirements of step S22 and has the shortest length. When combined with the first telescopic element 221, the volume of the disassembling device 2 is minimized, thereby improving ease of use and economy.

[0118] The length L3 of the lifting element 241 and the shape S3 are obtained based on Formula 5, which is:

[0119] min L3

[0120] min S3

[0121] stL3+S3≥h1

[0122] L3≤h1.

[0123] In Formula 5, the lifting cylinder can meet the requirements of step S31 and does not affect the implementation of step S42.

[0124] Furthermore, the sliding distance L4 of the slider 223 and the distance S4 between the slider 223 and the main drive 1 in the horizontal direction are obtained based on Formula 6. Formula 6 is:

[0125]

[0126] In formula 6, the sliding distance of the slider 223 meets the requirements of step S2 and has the shortest length.

[0127] Furthermore, the length L5 of the base 23 is obtained based on Formula 7, which is:

[0128]

[0129] In the formula, the base 23 can meet the requirements of accommodating the disassembly component 22 and has the shortest length, so that the length of the disassembly device 2 is the shortest.

[0130] Furthermore, the relationship between the shortening amount ΔS1 of the first telescopic element 221 and the extending amount ΔS2 of the second telescopic element 222 in step S22 is obtained based on Formula 8, where Formula 8 is:

[0131]

[0132] ΔS 1,max =S1

[0133]

[0134] In the formula, during the process of shortening the first telescopic element 221 and extending the second telescopic element 222, the second angle α2 between the first telescopic element 221 and the plane of the main drive 1 is maximized, so that the shear load on the first telescopic element 221 is minimized, and the availability and safety of the disassembly device 2 are improved.

[0135] In this application, Formulas 1 through 8 not only meet the requirements of each step of the disassembly method, but also reduce the size of disassembly device 2, making it more suitable for use in limited cave environments. Furthermore, the shear load on the first telescopic element 221 and the second telescopic element 222 is reduced, thereby improving the safety of disassembly device 2.

[0136] In addition, through Formulas 1 to 8, an association relationship with the main drive 1 can be established. For different sizes of the main drive 1, the smallest disassembly device 2 can be obtained, and the construction conditions in the hole can be judged before disassembly.

[0137] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A large diameter main drive dismantling device in a hole, characterized by: include: The base (23) comprises an upper platform (231) and a lower platform (232) arranged below the upper platform (231), wherein the upper platform (231) and the lower platform (232) have a length direction and a width direction, and a slider (223) is further arranged on the lower platform (232), wherein the slider (223) has a sliding direction, and the sliding direction is parallel to the length direction of the lower platform (232), and two sliders (223) are arranged on the lower platform (232) at intervals along the width direction of the lower platform (232); and the upper platform (231) is provided with two receiving holes (233) at intervals in the length direction; A connecting assembly (21) comprising a first connecting element (211), a second connecting element (212), and a third connecting element (213), wherein the two first connecting elements (211) and the two second connecting elements (212) are respectively used to be fixed on the main drive (1), the two first connecting elements (211) are higher than the two second connecting elements (212), the two third connecting elements (213) are respectively fixed in the width direction of the upper platform (231), and the third connecting elements (213) are hinged to the second connecting elements (212); A disassembly assembly (22) comprises a first telescopic element (221) and a second telescopic element (222), wherein one end of the first telescopic element (221) is hinged to the first connecting element (211), and the other end is hinged to the slider (223); one end of the second telescopic element (222) is fixed to the lower platform (232), and the other end is hinged to the slider (223); A support assembly (24) comprises a lifting element (241) and a bearing plate (242), wherein the lifting element (241) pushes the bearing plate (242) to move up and down, and the bearing plate (242) is located below the receiving hole (233); The upper platform (231) is further provided with a transport rail (235), the transport rail (235) extending along the length direction of the upper platform (231), two transport rails (235) being spaced apart along the width direction of the upper platform (231), and the two transport rails (235) being located on both sides of the two receiving holes (233).

2. The large-diameter main drive dismantling device in a hole according to claim 1, characterized in that: At least two load-bearing walls (234) are further provided between the upper platform (231) and the lower platform (232), and two ends of the load-bearing walls (234) are fixedly connected to the upper platform (231) and the lower platform (232), respectively.

3. The large-diameter main drive dismantling device in a hole according to claim 1, characterized in that: The transport rail (235) is recessed in the upper platform (231).

4. A dismantling method, using the large-diameter main drive dismantling device in a hole according to any one of claims 1 to 3, characterized in that: include: S10. Build the disassembly device (2), and fix the first connecting element (211) and the second connecting element (212) on the main drive (1); S20. Disassemble the main drive (1), including: S21. Maintain the length of the first telescopic element (221), shorten the length of the second telescopic element (222), and set a first angle between the first telescopic element (221) and the plane of the main drive (1) When the angle is right, the second telescopic element (222) stops working; S22. shortening the length of the first telescopic element (221) and extending the length of the second telescopic element (222) so that the main drive (1) is parallel to the upper platform (231) and the first telescopic element (221) is shortened to the shortest state; S30. Take over the main drive (1) and install the transport components, including: S31. The lifting element (241) pushes the carrier plate (242) upward and contacts the main drive (1), carrying the entire weight of the main drive (1); S32. Remove the connecting assembly (21) and the disassembling assembly (22), and install a transport assembly on the main drive (1), wherein the transport assembly is a transport wheel (31); S40. Place and transport the main drive (1), including: S41 lowers the height of the lifting element (241) so that the transport wheel (31) falls into the transport rail (235); S42. Use a traction device to pull the main drive (1) out of the upper platform (231).

5. The disassembly method according to claim 4, characterized in that: The step S10 also includes S11 and S12, wherein: S11. Adjust the height of the upper platform (231) so that the upper platform (231) is lower than the lower edge of the main drive (1), and the second connecting element (212) is detachably arranged on the main drive (1), and the height of the second connecting element (212) and the upper platform (231) is ; S12. Based on the diameter of the main drive (1) , obtain the height of the first connecting element (211) on the main drive (1) The first connecting element (211) is detachably arranged on the main drive (1), and the height of the first connecting element (211) on the main drive (1) is satisfy: 。 6. The disassembly method according to claim 5, characterized in that: The length of the first telescopic element (221) is obtained based on formula 2 and formula 3. and its itinerary , where formula 2 is: ； In formula 2, and are complementary angles; Formula 3 is: ； The length of the second telescopic element (222) is obtained based on formula 4 and itinerary , Formula 4 is: ； Obtain the length of the lifting element (241) based on Formula 5 and formation , Formula 5 is: 。 7. The disassembly method according to claim 6, characterized in that: Get the sliding distance of the slider (223) based on formula 6 and the distance between the slider (223) and the main drive (1) in the horizontal direction , Formula 6 is: 。 8. The disassembly method according to claim 7, characterized in that: The length of the base (23) is obtained based on formula 7 , Formula 7 is: 。 9. The disassembly method according to claim 8, characterized in that: The shortening amount of the first telescopic element (221) in step S22 is obtained based on formula 8 and the elongation of the second telescopic element (222) The relationship between them is: 。

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