Assembly and disassembly modules, devices, and methods applicable to crane telescopic booms

Abstract

This application relates to the field of construction machinery, specifically to a disassembly / reassembly module, device, and method for a crane telescopic boom. The disassembly / reassembly module includes a first support fixture and a second support fixture arranged at intervals. The first support fixture includes a first bracket, a first lifting mechanism, a first bracket mechanism, and a horizontal drive mechanism. The horizontal drive mechanism drives the first bracket mechanism to move along a first horizontal direction, and the first lifting mechanism drives the first bracket mechanism and the horizontal drive mechanism to move vertically. The second support fixture includes a second bracket, a second lifting mechanism, a second bracket mechanism, and a rotary drive mechanism. The rotary drive mechanism drives the second bracket mechanism to swing around an axis located in a second horizontal direction, and the second lifting mechanism drives the second bracket mechanism and the rotary drive mechanism to move vertically. The disassembly / reassembly device provided by this application improves disassembly / reassembly efficiency and safety.

Description

Technical Field

[0001] This application belongs to the field of construction machinery, and specifically relates to a disassembly module, disassembly device and disassembly method for a crane telescopic boom. Background Technology

[0002] As construction machinery becomes increasingly larger, especially for large lifting equipment such as heavy-duty truck cranes, which have high lifting heights, large load capacities, and relatively heavy telescopic booms, more and more crane telescopic booms now need to be transported separately and assembled or disassembled on-site due to road regulations and bridge load limitations.

[0003] Currently, most telescopic booms require an auxiliary crane to lift them during assembly and disassembly, and then gradually adjust and align them. This process is time-consuming and labor-intensive, and can also cause swaying or even collisions, which is unsafe. Summary of the Invention

[0004] The purpose of this application is to provide a disassembly module, disassembly device, and disassembly method for crane telescopic booms, in order to solve the problems of time-consuming, labor-intensive, and unsafe disassembly of existing telescopic booms.

[0005] To achieve the above objectives, the first aspect of this application provides a disassembly and assembly module suitable for a crane telescopic boom, including a first support fixture and a second support fixture;

[0006] The first support fixture includes a first bracket, a first lifting mechanism, a first bracket mechanism, and a horizontal drive mechanism. The first lifting mechanism is disposed on the first bracket. The first bracket mechanism is slidably disposed on the first lifting mechanism and is used to support the boom to be assembled or disassembled. The horizontal drive mechanism is disposed on the first lifting mechanism and is used to drive the first bracket mechanism to move along a first horizontal direction. The first lifting mechanism is used to drive the first bracket mechanism and the horizontal drive mechanism to move up and down in the vertical direction.

[0007] The second support fixture includes a second bracket, a second lifting mechanism, a second bracket mechanism, and a rotary drive mechanism. The second lifting mechanism is mounted on the second bracket. The second bracket mechanism is rotatably mounted on the second lifting mechanism and is used to support the boom to be assembled or disassembled. The rotary drive mechanism is mounted on the second lifting mechanism and is used to drive the second bracket mechanism to swing around an axis located in the second horizontal direction. The second lifting mechanism is used to drive the second bracket mechanism and the rotary drive mechanism to move up and down in the vertical direction.

[0008] The first support fixture and the second support fixture are arranged at intervals along the second horizontal direction.

[0009] As a further improvement to the above technical solution:

[0010] In some embodiments, the first bracket mechanism includes a swing wheel assembly and two first bracket bodies. The two first bracket bodies are aligned along the first horizontal direction and are slidably mounted on the first lifting mechanism. A wedge-shaped surface is provided on one side of each of the two first bracket bodies. The swing wheel assembly is provided on the wedge-shaped surface of each first bracket body. The swing wheel assembly is rotatably engaged with the first bracket body and is used to make rolling contact with the boom to be assembled or disassembled.

[0011] Wherein, the first horizontal direction is perpendicular to the second horizontal direction.

[0012] In some embodiments, the swing wheel assembly includes a swing frame and rollers, the middle part of the swing frame is rotatably engaged with the corresponding first bracket body, and the rollers are provided at both ends of the swing frame for rolling contact with the boom to be assembled or disassembled.

[0013] In some embodiments, each of the two first bracket bodies is provided with a corresponding horizontal drive mechanism, wherein each horizontal drive mechanism includes a first drive assembly, a first transmission assembly, and a lead screw assembly. The lead screw assembly includes a lead screw shaft and a nut seat. The lead screw shaft is arranged along the first horizontal direction. The nut seat is connected to the corresponding first bracket body and engages with the lead screw shaft threadedly. The first drive assembly is connected to the lead screw shaft through the first transmission assembly.

[0014] In some embodiments, the second bracket mechanism includes a second bracket body and a limiting pin. The second bracket body has a plurality of limiting lugs on the side facing the second lifting mechanism, and a positioning groove adapted to the shape of the outer peripheral surface of the boom on the side facing away from the second lifting mechanism.

[0015] The second lifting mechanism has an arc-shaped groove on its lifting frame corresponding to the limiting lug. The center of the arc-shaped groove is located on the rotation axis of the second bracket body. The limiting pin passes through the limiting lug and extends into the arc-shaped groove.

[0016] In some embodiments, the rotary drive mechanism includes a second drive assembly, a second transmission assembly, and a worm gear assembly. The worm gear in the worm gear assembly is arranged along the first horizontal direction. The worm gear in the worm gear assembly is disposed on the second bracket body and meshes with the worm gear. The second drive assembly is connected to the worm gear via the second transmission assembly.

[0017] In some embodiments, the first lifting mechanism and / or the second lifting mechanism each include a lifting frame and a third driving component. The lifting frame is slidably mounted on the corresponding first or second support in the vertical direction, and the third driving component is mounted on the corresponding first or second support and is used to drive the lifting frame to move up and down in the vertical direction.

[0018] In some embodiments, the second support fixture further includes a roller switching mechanism, and the roller switching mechanism is provided at both ends of the second bracket along the second horizontal direction;

[0019] The roller switching mechanism includes a boom arm, rollers, and a fourth drive assembly. The middle part of the boom arm is hinged to the second support. The rollers are rotatably disposed at the end of the boom arm away from the second support. The fourth drive assembly is disposed on the second support and is hinged to the end of the boom arm closer to the second support.

[0020] The second aspect of this application provides a mounting and dismounting device for a crane telescopic boom, including a movable module and a mounting and dismounting module for a crane telescopic boom according to the first aspect above, wherein a first support fixture and a second support fixture are spaced apart on the movable module along the second horizontal direction.

[0021] The third aspect of this application provides a method for assembling and disassembling a crane telescopic boom, which is applied to the assembly and disassembly device for crane telescopic booms provided in the second aspect above. The assembly and disassembly method includes a boom installation method and a boom disassembly method.

[0022] The boom installation method includes:

[0023] S100: Adjust the distance between the first support fixture and the second support fixture on the mobile module, and place the boom to be installed on the first support fixture and the second support fixture;

[0024] S120: Control the moving module to move closer to the crane, and make the boom parallel to the fixed boom on the crane;

[0025] S130: Adjust the height of the boom in the vertical direction by cooperating with the first support fixture and the second support fixture, so that the tail of the boom is initially aligned with the fixed arm;

[0026] S140: Control the innermost telescopic arm of the fixed arm to extend and bring the telescopic arm close to the tail of the boom, and then adjust the offset of the boom in the first horizontal direction and the deflection attitude around the second horizontal direction by cooperating with the first support fixture and the second support fixture.

[0027] S150: When the boom is fully aligned with the telescopic arm, install the head slider and continue to extend the telescopic arm so that the arm pin at the tail of the boom is inserted into the pin hole of the telescopic arm.

[0028] S160: Retract the telescopic boom. When the telescopic boom is retracted to the position, connect the telescopic cylinder in the fixed boom to the boom frame and continue retracting until the boom frame is fully retracted. The installation is now complete.

[0029] The boom disassembly method is the reverse of the steps and operations of the boom installation method.

[0030] Compared with the prior art, this application has the following beneficial effects:

[0031] This application provides a disassembly / reassembly module, device, and method for crane telescopic booms. The disassembly / reassembly module includes a first and second support fixture, which are spaced apart on a movable module of the disassembly / reassembly device. During boom assembly / reassembly, the first and second support fixtures provide support and positioning for the boom. The movable module then facilitates boom transfer. Specifically, the first and second support fixtures, working in conjunction, allow a first and second lifting mechanism to adjust the boom's vertical height. A horizontal drive mechanism adjusts the boom's offset in a first horizontal direction, and a rotation drive mechanism adjusts the boom's swing posture around a second horizontal direction. Thus, the disassembly / reassembly device provided by this application offers multi-degree-of-freedom posture adjustment during boom assembly / reassembly to adapt to different operating environments, improve efficiency, prevent collisions, and enhance operational safety.

[0032] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0033] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings:

[0034] Figure 1 A schematic diagram of a mounting and dismounting device for a crane telescopic boom provided in an embodiment of this application;

[0035] Figure 2A schematic diagram of the structure of the first support fixture in the assembly and disassembly module of a crane telescopic boom, provided in an embodiment of this application;

[0036] Figure 3 for Figure 2 Sectional view along the middle AA direction;

[0037] Figure 4 This is a schematic diagram showing the state of the first supporting tool in this application embodiment when it supports the boom and moves to the left (a), right (b), and middle (c) in the first horizontal direction;

[0038] Figure 5 A schematic diagram of the structure of a second support fixture in an assembly / disassembly module for a crane telescopic boom, provided in an embodiment of this application;

[0039] Figure 6 for Figure 5 Sectional view along the BB direction;

[0040] Figure 7 This is a schematic diagram showing the state of the second support fixture supporting the boom and swinging to the right (a) and to the left (b) around the axis of the second horizontal direction in the embodiment of this application;

[0041] Figure 8 This is a schematic diagram showing the state of the mounting and dismounting device for a crane telescopic boom in this embodiment of the application when it is connected to the crane;

[0042] Figure 9 This is an assembly and disassembly device applicable to the telescopic boom of a crane in the embodiments of this application.

[0043] Explanation of reference numerals in the attached figures

[0044] 100. First support fixture; 110. First bracket; 111. Column; 120. First lifting mechanism; 121. Lifting frame; 122. Third drive assembly; 1220. Lifting module; 1221. Rope; 1223. Pulley; 130. First bracket mechanism; 131. Swing wheel assembly; 1310. Swing frame; 1311. Roller; 132. First bracket body; 140. Horizontal drive mechanism; 141. First drive assembly; 142. First transmission assembly; 143. Lead screw assembly; 1430. Lead screw shaft; 1431. Nut seat;

[0045] 200. Second support fixture; 210. Second bracket; 220. Second lifting mechanism; 221. Arc-shaped slot; 230. Second bracket mechanism; 231. Second bracket body; 2310. Limiting lug; 2311. Positioning groove; 232. Limiting pin; 240. Rotary drive mechanism; 241. Second drive assembly; 242. Second transmission assembly; 243. Worm gear assembly; 250. Roller switching mechanism; 251. Articulated boom; 252. Roller; 253. Fourth drive assembly;

[0046] 300, boom;

[0047] 400. Mobile module;

[0048] 500, Fixed arm;

[0049] X, first horizontal direction; Y, second horizontal direction; Z, vertical direction. Detailed Implementation

[0050] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0051] The present application will now be described in detail with reference to the accompanying drawings and exemplary embodiments.

[0052] Example

[0053] Please see Figure 1 This embodiment provides a disassembly module suitable for crane telescopic booms, which can be applied to a disassembly device suitable for crane telescopic booms. The disassembly device suitable for crane telescopic booms also includes a movable module 400.

[0054] The assembly / disassembly module for a crane telescopic boom includes a first support fixture 100 and a second support fixture 200. In use, the first support fixture 100 and the second support fixture 200 are spaced apart along a second horizontal direction Y on the movable module 400. It is understood that the maximum distance between the first support fixture 100 and the second support fixture 200 must be less than the length of the boom 300 to be assembled / disassembled, thus ensuring that the first support fixture 100 and the second support fixture 200 can always provide support and positioning for the boom 300.

[0055] It should be noted that the number of the first support fixture 100 and the second support fixture 200 can be adjusted according to the actual operation. For example: Method 1, using one first support fixture 100 and one second support fixture 200 in combination; Method 2, using one first support fixture 100 and two or more second support fixtures 200 in combination; Method 3, using two or more first support fixtures 100 and one second support fixture 200 in combination; Method 4, using two or more first support fixtures 100 and two or more second support fixtures 200 in combination. Therefore, it can be understood that the number of first support fixtures 100 and second support fixtures 200 used can be selected according to the specific situation, and the above are only illustrative examples and are not intended to limit the scope of protection of this application.

[0056] In some embodiments, a third support fixture and a fourth support fixture may be provided in the assembly / disassembly module for crane telescopic booms for auxiliary support. The structures of the third and fourth support fixtures may be the same as those of the first support fixture 100 or the second support fixture 200. To more clearly describe the technical solution of this application, the first support fixture 100 and the second support fixture 200 are used as examples in this embodiment.

[0057] Please refer to the following: Figure 2 , Figure 3 and Figure 4 The first support fixture 100 includes a first bracket 110, a first lifting mechanism 120, a first bracket mechanism 130, and a horizontal drive mechanism 140. The first lifting mechanism 120 is mounted on the first bracket 110. The first bracket mechanism 130 is slidably mounted on the first lifting mechanism 120 and is used to support the boom 300 to be assembled or disassembled. The horizontal drive mechanism 140 is mounted on the first lifting mechanism 120 and is used to drive the first bracket mechanism 130 to move along the first horizontal direction X. The first lifting mechanism 120 is used to drive the first bracket mechanism 130 and the horizontal drive mechanism 140 to move up and down in the vertical direction Z.

[0058] Please refer to the following: Figure 5 , Figure 6 and Figure 7 The second support fixture 200 includes a second bracket 210, a second lifting mechanism 220, a second bracket mechanism 230, and a rotary drive mechanism 240. The second lifting mechanism 220 is mounted on the second bracket 210. The second bracket mechanism 230 is rotatably mounted on the second lifting mechanism 220 and is used to support the boom 300 to be assembled or disassembled. The rotary drive mechanism 240 is mounted on the second lifting mechanism 220 and is used to drive the second bracket mechanism 230 to swing around an axis located in the second horizontal direction Y. The second lifting mechanism 220 is used to drive the second bracket mechanism 230 and the rotary drive mechanism 240 to move up and down in the vertical direction Z.

[0059] In this embodiment, the first horizontal direction X and the second horizontal direction Y are perpendicular to each other.

[0060] Understandably, the first support fixture 100 and the second support fixture 200 provided by the crane telescopic boom assembly / disassembly module can be arranged at intervals on the moving module 400. During boom 300 assembly / disassembly, the first support fixture 100 and the second support fixture 200 provide support and positioning for the boom 300. The length direction of the boom 300 is parallel to the second horizontal direction Y. The moving module 400 can move the boom 300, realizing the transport of the boom 300. Specifically, with the cooperation of the first support fixture 100 and the second support fixture 200, the first lifting mechanism 120 and the second lifting mechanism 220 can adjust the height of the boom 300 in the vertical direction Z, the horizontal drive mechanism 140 can adjust the offset of the boom 300 in the first horizontal direction X, and the rotation drive mechanism 240 can adjust the swing posture of the boom 300 around the second horizontal direction Y.

[0061] Thus, when the assembly and disassembly module for crane telescopic boom provided in this embodiment is applied to the assembly and disassembly device for crane telescopic boom, the first support fixture 100 and the second support fixture 200 can provide multi-degree-of-freedom posture adjustment for the boom 300 during assembly and disassembly, so as to adapt to the assembly and disassembly of the boom 300 in different environments, improve the assembly and disassembly efficiency, and at the same time avoid collisions and improve the safety of operation.

[0062] To more clearly describe the technical solution of this application, the following is a detailed description of the assembly and disassembly module for a crane telescopic boom provided in this embodiment.

[0063] Please see Figure 1 , Figure 2 and Figure 3 The aforementioned first bracket mechanism 130 includes a swing wheel assembly 131 and two first bracket bodies 132. The two first bracket bodies 132 are aligned along the first horizontal direction X and are slidably mounted on the first lifting mechanism 120. A wedge-shaped surface is provided on one side of each of the two first bracket bodies 132. A swing wheel assembly 131 is provided on the wedge-shaped surface of each first bracket body 132. The swing wheel assembly 131 rotates with the first bracket body 132 and is used to roll into contact with the boom 300 to be assembled or disassembled.

[0064] Thus, since both first bracket bodies 132 are slidable, the distance between them can be adjusted by the first horizontal drive mechanism 140, so that a "V" or "U" shaped groove capable of accommodating the boom 300 is formed between the opposing wedge-shaped surfaces of the two bracket bodies, thereby positioning and limiting the boom 300. Furthermore, the balance wheel assembly 131 can rotate relative to the first bracket bodies 132, thus adapting to boom 300 structures with different cross-sectional dimensions. The rolling contact between the balance wheel assembly 131 and the boom 300 reduces wear on the paint surface of the boom 300's outer periphery, better protecting the boom 300.

[0065] Furthermore, the swing wheel assembly 131 includes a swing frame 1310 and rollers 1311. The middle part of the swing frame 1310 is rotatably engaged with the corresponding first bracket body 132, and rollers 1311 are provided at both ends of the swing frame 1310. The rollers 1311 are used to make rolling contact with the boom 300 to be assembled or disassembled. Since the swing frame 1310 is rotatably engaged with the first bracket body 132, for example, by a pin, when the boom 300 contacts and presses against the rollers 1311, the swing frame 1310 will rotate relative to the first bracket body 132 to adapt to the shape of the outer circumference of the boom 300, thus adapting to booms 300 of different specifications and improving versatility. The rollers 1311 are rotatably mounted on the swing frame 1310, and the axis of rotation of the rollers 1311 is parallel to the second horizontal direction Y.

[0066] Optionally, the idler roller 1311 may be made of a soft material, or a layer of soft material for cushioning may be wrapped around the outer periphery of the idler roller 1311. The soft material may be selected from materials such as rubber and nylon.

[0067] Please refer to question 1 and Figure 2 The first lifting mechanism 120 mentioned above includes a lifting frame 121 and a third drive assembly 122. The lifting frame 121 is slidably mounted on the corresponding first support 110 in the vertical direction Z. The third drive assembly 122 is mounted on the corresponding first support 110 and is used to drive the lifting frame 121 to move up and down in the vertical direction Z.

[0068] In this embodiment, the first support 110 is an inverted gate-shaped structure. The first support 110 has columns 111 on both sides of the first horizontal direction X. The lifting frame 121 has guide sleeves at both ends of the first horizontal direction X. The guide sleeves are fitted on the columns 111 and form a clearance fit with the columns 111 so that the lifting frame 121 can slide relative to the columns 111 in the vertical direction Z.

[0069] Furthermore, two third drive components 122 can be configured, and the two third drive components 122 have identical structures. The following description will focus on one of the two third drive components 122. Each third drive component 122 includes a lifting module 1220, a rope 1221, and a pulley 1223. The lifting module 1220 is placed in the column 111, and the pulley 1223 is installed at the lifting end of the lifting module 1220. One end of the rope 1221 is fixed to the column 111, and the other end passes over the pulley 1223 and connects to the lifting frame 121. Thus, by synchronously lifting the lifting modules 1220 in the two third drive components 122 along the vertical direction Z, the lifting frame 121 can be driven to rise and fall along the vertical direction Z. Furthermore, using the rope 1221 for lifting and lowering reduces the stroke and increases the lifting amount, thereby saving installation space in the vertical direction Z and improving space utilization.

[0070] Optionally, the lifting module 1220 can be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder, etc.

[0071] Optionally, the rope 1221 can be a wire rope, sling, or suspension rope.

[0072] Please refer to question 1. Figure 2 and Figure 3 In this embodiment, each of the two first bracket bodies 132 is provided with a corresponding horizontal drive mechanism 140. That is to say, the two horizontal drive mechanisms 140 drive the corresponding first bracket bodies 132 to slide, thereby causing the two first bracket bodies 132 to move in the first horizontal direction X. Specifically, the two first bracket bodies 132 can move individually, move in tandem, or move in the same direction, thereby causing the boom 300 to shift in the first horizontal direction X.

[0073] Both horizontal drive mechanisms 140 are mounted on the lifting frame 121 of the first lifting mechanism 120, and the two horizontal drive mechanisms 140 have identical structures. The following description will focus on one of the two horizontal drive mechanisms 140. Each horizontal drive mechanism 140 includes a first drive assembly 141, a first transmission assembly 142, and a lead screw assembly 143. The lead screw assembly 143 includes a lead screw shaft 1430 and a nut seat 1431. The lead screw shaft 1430 is arranged along the first horizontal direction X. The nut seat 1431 is connected to the corresponding first bracket body 132 and engages with the lead screw shaft 1430 via a threaded joint. The first drive assembly 141 is connected to the lead screw shaft 1430 via the first transmission assembly 142. Thus, the first drive assembly 141 outputs torque, which is then used by the first transmission assembly 142 to drive the lead screw shaft 1430 to rotate.

[0074] Optionally, the first transmission component 142 may adopt a worm gear transmission structure, a bevel gear transmission structure, a sprocket transmission structure, or a belt pulley transmission structure, etc.

[0075] Optionally, the first drive component 141 may be an electric motor, a hydraulic motor, or an electric motor.

[0076] Please see Figure 1 , Figure 5 and Figure 6 The second bracket mechanism 230 includes a second bracket body 231 and a limiting pin 232. The second bracket body 231 is provided with a plurality of limiting lugs 2310 on the side facing the second lifting mechanism 220. The second bracket body 231 is provided with a positioning groove 2311 that matches the shape of the outer peripheral surface of the boom 300 on the side facing away from the second lifting mechanism 220. The positioning groove 2311 may be provided with a non-slip buffer pad, such as a rubber pad.

[0077] The second lifting mechanism 220 also includes a lifting frame 121 and a third drive assembly 122. The lifting frame 121 is slidably mounted on the corresponding second bracket 210 along the vertical direction Z. The third drive assembly 122 is mounted on the corresponding second bracket 210 and is used to drive the lifting frame 121 to move up and down along the vertical direction Z. It should be noted that the structure of the lifting frame 121 and the third drive assembly 122 in the second lifting mechanism 220 is the same as that in the first lifting mechanism 120 in terms of structure and assembly method, and will not be described again in this embodiment. The main difference lies in the structural design of the lifting frame 121.

[0078] In this embodiment, the lifting frame 121 of the second lifting mechanism 220 is provided with an arc-shaped groove 221 corresponding to the limiting lug 2310. The center of the arc-shaped groove 221 is located on the rotation axis of the second bracket body 231. The limiting pin 232 passes through the limiting lug 2310 and extends into the arc-shaped groove 221. In this way, the limiting pin 232 and the arc-shaped groove 221 provide guidance and limitation for the rotation of the second bracket.

[0079] The rotary drive mechanism 240 includes a second drive assembly 241, a second transmission assembly 242, and a worm gear assembly 243. The worm gear in the worm gear assembly 243 is arranged along a first horizontal direction X. The worm gear in the worm gear assembly 243 is disposed on the second bracket body 231 and meshes with the worm gear for transmission. The second drive assembly 241 is connected to the worm gear through the second transmission assembly 242.

[0080] In some embodiments, a worm gear structure that meshes with the worm gear can be directly machined onto the second bracket body 231. Alternatively, the worm gear can be machined and then welded onto the second bracket body 231.

[0081] Optionally, the second transmission component 242 may adopt a worm gear transmission structure, a bevel gear transmission structure, a sprocket transmission structure, or a belt pulley transmission structure, etc.

[0082] Optionally, the second drive component 241 may be an electric motor, a hydraulic motor, or an electric motor.

[0083] Please refer to the following: Figure 6 In some embodiments, the second support fixture 200 further includes a roller switching mechanism 250. The function of the roller switching mechanism 250 is to switch to roller 252 support when the second support fixture 200 needs to move. At this time, the entire second bracket 210 is supported by the roller 252, and the second bracket 210 is lifted as a whole and separated from the moving module 400. In this way, the entire second support fixture 200 can move on the moving module 400.

[0084] Furthermore, the second support 210 is provided with roller switching mechanisms 250 at both ends along the second horizontal direction Y, and the roller switching mechanisms 250 are arranged near the bottom of the second support 210. The roller switching mechanism 250 includes a crank arm 251, a roller 252 and a fourth drive assembly 253. The middle part of the crank arm 251 is hinged to the second support 210. The roller 252 is rotatably disposed at the end of the crank arm 251 away from the second support 210. The fourth drive assembly 253 is disposed on the second support 210 and is hinged to the end of the crank arm 251 near the second support 210. Thus, the fourth drive assembly 253 can drive the boom 251 to rotate, thereby causing the roller 252 to swing. When the roller 252 swings towards the bottom of the second bracket 210, the roller 252 contacts the moving module 400 and lifts the entire second support fixture 200. When it is necessary to lower the second support fixture 200, the roller 252 is driven to swing away from the bottom of the second bracket 210 to retract the roller 252.

[0085] In some embodiments, a roller switching mechanism 250 may be arranged at the bottom of the first bracket 110 to achieve the purpose of movement.

[0086] In some embodiments, a roller 252 may be provided at the bottom of the second bracket 210, and a locking structure similar to a brake may be configured for the roller 252.

[0087] Optionally, the fourth drive component 253 may be a hydraulic cylinder, a pneumatic cylinder, or an electric cylinder, etc.

[0088] Please see Figures 1 to 7 Furthermore, this embodiment also provides a mounting and disassembling device suitable for a crane telescopic boom. The mounting and disassembling device for a crane telescopic boom includes a movable module 400 and a mounting and disassembling module suitable for a crane telescopic boom provided according to the above embodiment. The first support fixture 100 and the second support fixture 200 are spaced apart along a second horizontal direction Y on the movable module 400.

[0089] Alternatively, the mobile module 400 can be designed as a mobile work platform or as a transport vehicle with a platform.

[0090] Please see Figures 1 to 9 This embodiment also provides a method for assembling and disassembling a crane telescopic boom. This method is applied to the aforementioned assembly and disassembly device for crane telescopic booms. The method includes a boom installation method and a boom disassembly method.

[0091] Please see Figure 8 and Figure 9 The boom installation methods include:

[0092] S100: Adjust the distance between the first support fixture 100 and the second support fixture 200 on the mobile module 400, and place the boom 300 to be installed on the first support fixture 100 and the second support fixture 200. The first support fixture 100 is close to the tail of the boom 300, and the second support fixture 200 is close to the head of the boom 300.

[0093] S120: Control the movement of the mobile module 400 and bring it closer to the crane, and make the boom 300 parallel to the fixed boom 500 on the crane.

[0094] S130: Adjust the height of the boom 300 in the vertical direction Z by cooperating with the first support fixture 100 and the second support fixture 200, so that the tail of the boom 300 is initially aligned with the fixed arm 500 (e.g., Figure 8 (As shown).

[0095] S140: Control the innermost telescopic arm of the fixed arm 500 to extend and bring the telescopic arm close to the tail of the boom 300, and then adjust the offset of the boom 300 in the first horizontal direction X and the deflection attitude around the second horizontal direction Y by cooperating with the first support fixture 100 and the second support fixture 200 (e.g., Figure 4 and Figure 7 (As shown).

[0096] S150: When the boom 300 is fully aligned with the telescopic boom, install the head slider and continue to extend the telescopic boom so that the boom pin at the tail of the boom 300 is inserted into the pin hole of the telescopic boom.

[0097] S160: Retract the telescopic boom. When the telescopic boom is retracted to the correct position, connect the telescopic cylinder in the fixed boom 500 to the boom 300 and continue retracting until the boom 300 is fully retracted. The installation is now complete.

[0098] It should be noted that in step S160 above, when retracting the telescopic boom and boom 300, the first lifting mechanism 120 drives the first bracket mechanism 130 to descend, so that the first bracket mechanism 130 contacts the support of the boom 300. At this time, only the second bracket mechanism 230 supports the boom 300, preventing the boom 300 from being in a cantilever structure. At the same time, the roller switching mechanism 250 in the second support fixture 200 can be controlled to switch to roller 252 support, so that when the telescopic boom and boom 300 are retracted, the second support fixture 200 provides support and moves along the retraction direction at the same time, preventing the entire boom 300 from bending downwards and slipping.

[0099] In this embodiment, the steps and operations of the boom disassembly method are the opposite of those of the boom installation method, and will not be repeated in this embodiment.

[0100] Compared with the prior art, the assembly and disassembly device and method for crane telescopic booms provided in this embodiment have the following advantages:

[0101] 1. This mounting and dismounting device for crane telescopic booms allows the boom 300 to have more posture adjustment functions, including a wide range of height adjustment, as well as vertical and horizontal offset adjustment and minor axial rotation adjustment. This makes it easy to align the boom 300 with the fixed boom 500 and facilitates mounting and dismounting.

[0102] 2. It can reduce the site requirements when assembling and disassembling the boom 300, and reduce the difficulty of aligning the two vehicles (crane and transport vehicle). That is, under certain longitudinal slopes, transverse slopes, and undulating road surfaces, when the axle difference between the two vehicles is large, the error can be compensated by adjusting the attitude of the boom 300.

[0103] 3. Using this assembly and disassembly method, only the mechanical mechanisms in the first support fixture 100 and the second support fixture 200 need to be operated. The operation is convenient, quick and safe, avoiding the impact, shaking and even unsafe situations that may occur during hoisting.

[0104] 4. When the cross-section of the boom 300 changes, moves left and right, or rotates axially, the idler roller 1311 installed in the first bracket mechanism 130 can closely fit the lower surface of the boom 300 (the surface where the belly area of ​​the boom 300 is located) and provide stable support and positioning for the boom 300.

[0105] It should be noted that, in this application, unless otherwise stated, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" used to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0106] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0107] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0108] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0109] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A disassembly and assembly module suitable for a crane telescopic boom, characterized in that, Includes a first support fixture (100) and a second support fixture (200); The first support fixture (100) includes a first bracket (110), a first lifting mechanism (120), a first bracket mechanism (130), and a horizontal drive mechanism (140). The first lifting mechanism (120) is disposed on the first bracket (110). The first bracket mechanism (130) is slidably disposed on the first lifting mechanism (120) and is used to support the boom (300) to be assembled or disassembled. The horizontal drive mechanism (140) is disposed on the first lifting mechanism (120) and is used to drive the first bracket mechanism (130) to move along the first horizontal direction (X). The first lifting mechanism (120) is used to drive the first bracket mechanism (130) and the horizontal drive mechanism (140) to rise and fall in the vertical direction (Z). The second support fixture (200) includes a second bracket (210), a second lifting mechanism (220), a second bracket mechanism (230), and a rotary drive mechanism (240). The second lifting mechanism (220) is mounted on the second bracket (210). The second bracket mechanism (230) is rotatably mounted on the second lifting mechanism (220) and is used to support the boom (300) to be assembled or disassembled. The rotary drive mechanism (240) is mounted on the second lifting mechanism (220) and is used to drive the second bracket mechanism (230) to swing around an axis located in the second horizontal direction (Y). The second lifting mechanism (220) is used to drive the second bracket mechanism (230) and the rotary drive mechanism (240) to move up and down in the vertical direction (Z). The second bracket mechanism (230) includes a second bracket body (231) and a limiting pin (232). The second bracket body (231) has a plurality of limiting lugs (2310) on the side facing the second lifting mechanism (220), and a positioning groove (2311) adapted to the shape of the outer peripheral surface of the boom (300) on the side facing away from the second lifting mechanism (220). The lifting frame (121) of the second lifting mechanism (220) has an arc-shaped groove (221) corresponding to the limiting lugs (2310). The center of the arc-shaped groove (221) is located on the rotation axis of the second bracket body (231). The limiting pin (232) passes through the limiting lugs (2310) and extends into the arc-shaped groove (221). The first support fixture (100) and the second support fixture (200) are arranged at intervals along the second horizontal direction (Y).

2. The assembly / disassembly module for a crane telescopic boom according to claim 1, characterized in that, The first bracket mechanism (130) includes a balance wheel assembly (131) and two first bracket bodies (132). The two first bracket bodies (132) are aligned along the first horizontal direction (X) and are slidably mounted on the first lifting mechanism (120). A wedge-shaped surface is provided on one side of each of the two first bracket bodies (132). The balance wheel assembly (131) is provided on the wedge-shaped surface of each first bracket body (132). The balance wheel assembly (131) is rotatably engaged with the first bracket body (132) and is used to roll contact with the boom (300) to be assembled or disassembled. Wherein, the first horizontal direction (X) and the second horizontal direction (Y) are perpendicular to each other.

3. The assembly / disassembly module for a crane telescopic boom according to claim 2, characterized in that, The swing wheel assembly (131) includes a swing frame (1310) and a roller (1311). The middle part of the swing frame (1310) is rotatably engaged with the corresponding first bracket body (132). The rollers (1311) are provided at both ends of the swing frame (1310). The rollers (1311) are used to make rolling contact with the arm (300) to be assembled or disassembled.

4. The assembly / disassembly module for a crane telescopic boom according to claim 2, characterized in that, Each of the two first bracket bodies (132) is provided with a corresponding horizontal drive mechanism (140). Each horizontal drive mechanism (140) includes a first drive assembly (141), a first transmission assembly (142), and a lead screw assembly (143). The lead screw assembly (143) includes a lead screw shaft (1430) and a nut seat (1431). The lead screw shaft (1430) is arranged along the first horizontal direction (X). The nut seat (1431) is connected to the corresponding first bracket body (132) and is threadedly engaged with the lead screw shaft (1430). The first drive assembly (141) is connected to the lead screw shaft (1430) through the first transmission assembly (142).

5. The assembly / disassembly module for a crane telescopic boom according to claim 1, characterized in that, The rotary drive mechanism (240) includes a second drive assembly (241), a second transmission assembly (242), and a worm gear assembly (243). The worm in the worm gear assembly (243) is arranged along the first horizontal direction (X). The worm in the worm gear assembly (243) is disposed on the second bracket body (231) and meshes with the worm. The second drive assembly (241) is connected to the worm through the second transmission assembly (242).

6. The assembly / disassembly module for a crane telescopic boom according to claim 1, characterized in that, The first lifting mechanism (120) and / or the second lifting mechanism (220) both include a lifting frame (121) and a third drive assembly (122). The lifting frame (121) is slidably mounted on the corresponding first bracket (110) or second bracket (210) in the vertical direction (Z). The third drive assembly (122) is mounted on the corresponding first bracket (110) or second bracket (210) and is used to drive the lifting frame (121) to move up and down in the vertical direction (Z).

7. The assembly / disassembly module for a crane telescopic boom according to any one of claims 1-6, characterized in that, The second support fixture (200) also includes a roller switching mechanism (250), and the roller switching mechanism (250) is provided at both ends of the second bracket (210) along the second horizontal direction (Y). The roller switching mechanism (250) includes a boom arm (251), a roller (252) and a fourth drive assembly (253). The middle part of the boom arm (251) is hinged to the second support (210). The roller (252) is rotatably disposed at one end of the boom arm (251) away from the second support (210). The fourth drive assembly (253) is disposed on the second support (210) and is hinged to one end of the boom arm (251) near the second support (210).

8. A device for mounting and dismounting a crane telescopic boom, characterized in that, Includes a movable module (400) and a disassembly module for a crane telescopic boom according to any one of claims 1-7, wherein the first support fixture (100) and the second support fixture (200) are spaced apart on the movable module (400) along the second horizontal direction (Y).

9. A method for assembling and disassembling a crane telescopic boom, characterized in that, The mounting and dismantling device for a crane telescopic boom according to claim 8, wherein the mounting and dismantling method includes a boom mounting method and a boom dismantling method; The boom installation method includes: S100: Adjust the distance between the first support fixture (100) and the second support fixture (200) on the mobile module (400), and place the boom (300) to be installed on the first support fixture (100) and the second support fixture (200); S120: Control the moving module (400) to move and approach the crane, and make the boom (300) parallel to the fixed boom (500) on the crane; S130: Adjust the height of the boom (300) in the vertical direction (Z) by cooperating with the first support fixture (100) and the second support fixture (200) so that the tail of the boom (300) is initially aligned with the fixed arm (500); S140: Control the innermost telescopic arm of the fixed arm (500) to extend and bring the telescopic arm close to the tail of the boom (300), and then adjust the offset of the boom (300) in the first horizontal direction (X) and the deflection attitude around the second horizontal direction (Y) by cooperating with the first support fixture (100) and the second support fixture (200). S150: When the boom (300) is fully aligned with the telescopic arm, install the head slider and continue to extend the telescopic arm so that the arm pin at the tail of the boom (300) is inserted into the pin hole of the telescopic arm. S160: Retract the telescopic boom. When the telescopic boom is retracted to the position, connect the telescopic cylinder in the fixed boom (500) to the boom (300) and continue retracting until the boom (300) is fully retracted. The installation is now complete. The boom disassembly method is the reverse of the steps and operations of the boom installation method.

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