Device and method for disassembling large-diameter main drive in hole

Abstract

The invention provides an in-hole large-diameter main drive disassembling device and disassembling method, and relates to the field of shield tunneling machines, the in-hole large-diameter main drive disassembling device comprises a base platform with an upper platform and a lower platform, the lower platform is provided with a sliding block, the sliding block slides in the length direction of the lower platform, and the upper platform is provided with two bearing holes; the connecting assembly comprises a first connecting element, a second connecting element and third connecting elements, the first connecting element and the second connecting element are used for being fixed to the main drive, the two third connecting elements are fixed to the upper platform in the width direction, and the third connecting elements are hinged to the second connecting element; the disassembling assembly comprises a first telescopic element and a second telescopic element, the first telescopic element is connected with the first connecting element and the sliding block, and the second telescopic element is hinged to the sliding block; the supporting assembly is located below the bearing hole. According to the disassembling device, the first telescopic element and the second telescopic element are matched, so that the disassembling device can select elements with smaller lengths and strokes, the size 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 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 can realize the integrated construction of excavation, slag removal and support, and has the advantages of high efficiency, safety, and little impact on the ground environment. It is widely used in tunnel construction. As large-section excavation becomes more and more common in tunnel construction, the use of ultra-large diameter normal pressure shield construction is becoming more and more common.

[0003] Since the main drive of the super-large diameter shield machine is a large-sized and overweight structural part, usually, when the shield machine completes tunnel excavation, it will be hoisted out through the receiving shaft at the tunnel penetration point. However, in some projects, due to the complex ground conditions and dense buildings at the tunnel penetration point, the shield machine needs to be disassembled in the tunnel and the parts shipped out. In the absence of indoor conditions for expanding the tunnel, the traditional disassembly of the main drive through lifting tools such as hand winches will face problems such as difficult operation, low degree of automation, and high risk. How to safely and efficiently disassemble the main drive in the current tunnel space is an engineering problem that needs to be solved in the current super-large diameter construction. Summary of the invention

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

[0005] In order to achieve the above 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 arranged below the upper platform, the upper platform and the lower platform have a length direction and a width direction, the lower platform is further provided with a slider, the slider has a sliding direction, the sliding direction is parallel to the length direction of the lower platform, two sliders are arranged on the lower platform at intervals along the width direction of the lower platform; the upper platform is provided with two spaced receiving holes 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 comprises 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 comprises a lifting element and a bearing plate, wherein 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, the transport rail 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, using the aforementioned large-diameter main drive disassembly device in the 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 set the first angle α between the first telescopic element and the main drive plane. 1 When it is at right angles, the second telescopic element stops working;

[0017] S22. Shorten the length of the first telescopic element, and 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 the 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, bearing the entire weight of the main drive;

[0020] S32. Remove the connection assembly and disassemble the assembly, and install the transport assembly on the main drive, wherein 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 also 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, and the second connecting element is detachably arranged on the main drive, and the height between the second connecting element and the upper platform is h 1 ;

[0026] S12. Based on the diameter D of the main drive, obtain the height h of the first connecting element on the main drive 2 The first connecting element is detachably arranged on the main drive, and the height h of the first connecting element on the main drive 2 satisfy:

[0027]

[0028] Preferably, the length L of the first telescopic element is obtained based on Formula 2 and Formula 3: 1 Its itinerary S 1 , where formula 2 is:

[0029]

[0030] In formula 2, α 1 With α 2 are complementary angles;

[0031] Formula three is:

[0032] min L 1

[0033] min S 1

[0034] maxα 2,min

[0035] maxα 1,min

[0036] stD / 2≤h 2 ≤D

[0037] L 1 +S 1 ≥h 1 +h 2 ;

[0038] The length L of the second telescopic element is obtained based on formula 4 2 and itinerary S 2 , Formula 4 is:

[0039]

[0040] Based on formula 5, the length L of the lifting element is obtained 3 and form S 3 , Formula 5 is:

[0041] min L 3

[0042] min S 3

[0043] sL 3 +S 3 ≥h 1

[0044] L 3 ≤h 1 .

[0045] Preferably, the sliding distance L of the slider is obtained based on Formula 6: 4 And the distance S between the slider and the main drive in the horizontal direction 4 , Formula 6 is:

[0046]

[0047] Preferably, the length L of the base is obtained based on Formula 7: 5 , Formula 7 is:

[0048]

[0049] Preferably, the shortening amount ΔS of the first telescopic element in step S22 is obtained based on formula eight: 1 The elongation of the second telescopic element ΔS 2 The relationship between them is:

[0050]

[0051] ΔS 1,max =S 1

[0052]

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

[0054] In the present application, the cooperation of the first telescopic element and the second telescopic element can enable the disassembly device to select elements with smaller length and stroke, so that the volume of the disassembly device is smaller and more suitable for disassembling the main drive in the hole. At the same time, by limiting the length and stroke of the first telescopic element and the second telescopic element, the shear load on the first telescopic element and the second telescopic element 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 the 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 diagram of this application;

[0059] Figure 1b It 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 base;

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

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

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

[0065] Figure 7 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 wheels. DETAILED DESCRIPTION

[0072] In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, 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 the hole includes a base 23, which includes an upper platform 231 and a lower platform 232, wherein the upper platform 231 is arranged above the lower platform 232, and both the upper platform 231 and the lower platform 232 have a length direction and a width direction, and the length direction and the width direction of the upper platform 231 and the lower platform 232 are consistent. A slider 223 is also arranged on the lower platform 232, and the slider 223 has a sliding direction, which is parallel to the length direction of the lower platform 232. There are two sliders 223, and the two sliders 223 are arranged at intervals along the width direction of the lower platform 232; two receiving holes 233 are also arranged on the upper platform 231, and the two receiving holes 233 are arranged along the length direction of the upper platform 231.

[0075] The disassembling device 2 also includes a connecting component 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 fixed to the main drive 1 by bolts, and the arrangement of the screws is consistent with the outer circle mounting screw holes of the main drive 1 to avoid damage to the main drive 1. When the second connecting element 212 and the main drive 1 are connected, the lower edge of the main drive 1 is higher than the upper platform 231, and the distance between the second connecting element 212 and the upper platform 231 is h. 1 The first connecting element 211 is fixed at a distance h from the lower edge of the main drive 1. 2 where D / 2≤h 2 ≤D. The two third connecting elements 213 are detachably arranged on the upper platform 231 to ensure the connection strength and improve the safety during the disassembly process.

[0077] The disassembly device 2 also includes a disassembly component 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 on 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, and 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, and the length of the slide groove 224 is L. 4 , the slider 223 only slides in the slide groove 224, that is, the sliding distance of the slider 223 is also L 4 The distance between the chute 224 and the main drive 1 is S 4 .

[0081] By setting the slide groove 224, the ability of the slide groove 224 to bear the load applied by the slider 223 is improved, and the safety is improved. At the same time, both ends of the first telescopic element 221 are movably connected (i.e., hinged), which is convenient for changing the spatial posture of the first telescopic element 221 and achieving the effect of bearing a smaller shear load. The fixed end of the second telescopic element 222 is fixed on the lower platform 232 to ensure the stability of bearing the load. The movable end of the second telescopic element 222 is connected to the first telescopic element 221 through the slider 223, cooperates with the spatial posture of the first telescopic element 221 and bears part of the load, which indirectly improves the overall stability of the disassembly assembly 22.

[0082] The disassembling device 2 also includes a supporting assembly 24, which includes a lifting element 241 and a carrying plate 242. The lifting element 241 pushes the carrying plate 242 to move up and down. The carrying plate 242 is located below the receiving hole 233. The carrying 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, and 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 disassembled main drive 1 to move in translation.

[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 a 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 , and at least two load-bearing walls 234 are provided. 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 discloses 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 disassembling device 2, measure the diameter D of the main drive 1 and level the ground surface to ensure that when the disassembling device 2 is placed on the ground surface, the upper platform 231 is lower than the lower edge of the main drive 1. After obtaining the diameter D and leveling the ground surface, fix the second connecting element 212 on the main drive 1. At this time, the height between the second connecting element 212 and the upper platform is h 1 ;

[0089] S12. Based on the obtained diameter D of the main drive 1, calculate the height h of the first connecting element 211 on the main drive 1 2 , where h 2 Satisfy D / 2≤h 2 ≤D, and according to the calculated height of the first connecting element 211 , the first connecting element 211 is fixed on the main drive 1 .

[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. At this time, the main drive 1 falls over, and a first angle α is formed between the plane of the main drive 1 and the first telescopic element 221. 1 , as the main drive 1 tilts, the first angle α 1 The angle α gradually increases, and the lateral load on the first telescopic element 221 gradually decreases. 1 When the angle is a right angle, the second telescopic element 222 stops working and maintains the current telescopic amount. At this time, the loads borne by the first telescopic element 221 are all axial loads, and there is 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 the minimum, the cooperation between the first telescopic element 221 and the second telescopic element 222 makes the second included angle α between the first telescopic element 221 and the plane of the main drive 1 2 As large as possible, in which case 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 the bearing plate 242, driven by the two lifting elements 241, 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 time, the first connecting element 211 and the second connecting element 212 on the main drive 1 are removed, the third connecting element 213 is removed from the upper platform 231, the connection between the main drive 1 and the connecting assembly 21 and the disassembly assembly 22 is released, and the transport assembly is installed on the main drive 1, and the main drive 1 is ready to be transported out. In the present application, the transport assembly is a transport wheel 31. Preferably, the transport wheel 31 is installed on the main drive 1 through a flange with screw holes, and the main drive 1 is also not damaged. The size of the flange and the arrangement position of the screw holes are consistent with the motor mounting holes on the main drive 1. Multiple transport wheels 31 are evenly distributed in the circumferential direction of the main drive 1 to improve the carrying stability.

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

[0099] S41. Reference Figure 8a and 8b The height of the lifting element 241 is lowered to make the transport wheel 31 fall into the transport rail 235, and the transport rail 235 is used to limit the direction of the transport wheel 31 and ensure the stability of the transport direction. The lower limit of the carrying plate 242 should be parallel to the upper platform 231 or lower than the upper platform 231 to prevent the carrying plate 242 from hindering the transport.

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

[0101] In this application, considering the limitation of the environment in the cave, the specifications of the disassembly assembly 22 are also limited, specifically:

[0102] The height h of the first connecting element 211 on the main drive 1 is obtained based on formula 1 2 , where formula 1 is:

[0103] D / 2≤h 2 ≤D

[0104] The length L of the first telescopic element 221 is obtained based on Formula 2 and Formula 3. 1 Its itinerary S 1 , where formula 2 is:

[0105]

[0106] In formula 2, α 1 With α 2 are complementary angles;

[0107] Formula three is:

[0108] min L 1

[0109] min S 1

[0110] maxα 2,min

[0111] maxα 1,min

[0112] stD / 2≤h 2 ≤D

[0113] L 1 +S 1 ≥h 1 +h 2 ;

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

[0115] The length L of the second telescopic element 222 is obtained based on Formula 4 2 and itinerary S 2 , Formula 4 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 L of the lifting element 241 is obtained based on Formula 5 3 and form S 3 , Formula 5 is:

[0119] min L 3

[0120] min S 3

[0121] sL 3 +S 3 ≥h 1

[0122] L 3 ≤h 1 .

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

[0124] Further, based on Formula 6, the sliding distance L of the slider 223 is obtained: 4 and the distance S between the slider 223 and the main drive 1 in the horizontal direction 4 , Formula 6 is:

[0125]

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

[0127] Further, the length L of the base 23 is obtained based on Formula 7: 5 , Formula 7 is:

[0128]

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

[0130] Further, the shortening amount ΔS of the first telescopic element 221 in step S22 is obtained based on formula 8: 1 The elongation ΔS of the second telescopic element 222 2 The relationship between them is:

[0131]

[0132] ΔS 1,max =S 1

[0133]

[0134] In the formula, in the process of shortening the first telescopic element 221 and lengthening the second telescopic element 222, the second angle α between the first telescopic element 221 and the plane of the main drive 1 is 2 The maximum value makes the shear load on the first telescopic element 221 minimum, and the usability and safety of the dismantling device 2 are improved.

[0135] In the present application, through Formula 1 to Formula 8, not only the requirements of each step of the disassembly method are met, but also the volume of the disassembly device 2 is made smaller, which is more conducive to use in a cave environment with limited space. At the same time, the shear load on the first telescopic element 221 and the second telescopic element 222 is smaller, and the safety of the disassembly device 2 is improved.

[0136] In addition, through Formula 1 to Formula 8, an association relationship with the main drive 1 can be established, and the smallest disassembly device 2 can be obtained for different sizes of the main drive 1, so that 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 the scope of protection of the present invention.

Claims

1. A large diameter main drive dismantling device in a hole, characterized in that: 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), comprising 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), 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); The support assembly (24) comprises a lifting element (241) and a bearing plate (242); the lifting element (241) pushes the bearing plate (242) to rise and fall; and the bearing plate (242) is located below the receiving hole (233).

2. The large-diameter main drive dismantling device in a hole according to claim 1, characterized in that: The upper platform (231) is also 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 arranged at intervals 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).

3. 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 also arranged 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.

4. The large-diameter main drive dismantling device in a hole according to claim 2, characterized in that: The transport rail (235) is recessed in the upper platform (231).

5. A dismantling method, using the large-diameter main drive dismantling device in a hole as claimed in any one of claims 1 to 4, characterized in that: include: S10. Build a 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 stop the second telescopic element (222) when the first angle α1 between the first telescopic element (221) and the plane of the main drive (1) is a right angle; S22. shorten the length of the first telescopic element (221), and lengthen 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 bearing plate (242) up and contacts the main drive (1), bearing the entire weight of the main drive (1); S32. Remove the connection assembly (21) and the disassembly 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. Lowering 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).

6. The disassembly method according to claim 5, 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), the second connecting element (212) is detachably arranged on the main drive (1), and the height between the second connecting element (212) and the upper platform (231) is h1; S12. Based on the diameter D of the main drive (1), a height h2 of the first connecting element (211) on the main drive (1) is obtained, wherein the first connecting element (211) is detachably arranged on the main drive (1), and the height h2 of the first connecting element (211) on the main drive (1) satisfies: D / 2≤h2≤D.

7. The disassembly method according to claim 6, characterized in that: The length L1 and the stroke S1 of the first telescopic element (221) are obtained based on Formula 2 and Formula 3, wherein Formula 2 is: In formula 2, α1 and α2 are complementary angles; Formula three is: min L1 min S1 max a 2,min max a 1,min stD / 2≤h2≤D L1+S1≥h1+h2; The length L2 and the stroke S2 ​​of the second telescopic element (222) are obtained based on Formula 4, which is: min L2 min S2 max a 1,min max a 2,min The length L3 and the shape S3 of the lifting element (241) are obtained based on Formula 5, which is: min L3 min S3 stL3+S3≥h1 L3≤h1.

8. The disassembly method according to claim 7, characterized in that: 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, which is: min L4 max S4 9. The disassembly method according to claim 8, characterized in that: The length L5 of the base (23) is obtained based on Formula 7, which is: min L5 10. The disassembly method according to claim 9, characterized in that: The relationship between the shortening amount ΔS1 of the first telescopic element (221) and the elongation amount ΔS2 of the second telescopic element (222) in step S22 is obtained based on Formula 8, wherein Formula 8 is: ΔS 1,max =S1

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