Beam replacement equipment support leg and beam replacement equipment

Abstract

The application relates to the technical field of bridge beam replacement, and provides a beam replacement equipment support leg and a beam replacement equipment. The beam replacement equipment support leg comprises a bottom support structure, a telescopic support leg, a conversion structure, an upper cross beam, a rotating system and a telescopic system, the lower end of the telescopic support leg is rotatably connected to the bottom support structure; the conversion structure is arranged at the upper end of the telescopic support leg and can be locked with the upper cross beam, the upper end of the telescopic support leg is rotatably connected to the conversion structure; the rotating system is in transmission connection with the telescopic support leg and is used for driving the telescopic support leg to rotate relative to the conversion structure, the upper cross beam and the bottom support structure; and the telescopic system is in transmission connection with the telescopic support leg and is used for driving the telescopic support leg to elongate or contract. When the beam replacement equipment needs to be transported, the overall height and width of the beam replacement equipment support leg can be reduced through the telescopic system and the rotating system, so that the height and width of the whole beam replacement equipment are reduced, the whole beam replacement equipment can smoothly pass through a tunnel, and the beam replacement efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of bridge beam replacement technology, and in particular to a support leg for beam replacement equipment and beam replacement equipment. Background Technology

[0002] With the rapid development of transportation in my country, the load capacity and speed of trains running on railways and cars running on highways have increased, and the operating time of railways and highways has lengthened, making the aging problem of bridges on existing lines increasingly prominent. A large number of existing railway beam bridges are still in service with defects. Especially in recent years, with the need for train speed increases and heavy-load upgrades, it is necessary to replace bridges on existing lines to meet the normal operation of railways and highways and to address the problems of increased load capacity and limitations on train speed.

[0003] In response to the current situation in my country where some railway bridges suffer from severe damage to their old beams and urgently need replacement, existing bridge replacement technologies mainly fall into three categories: vertical lifting beam replacement equipment, cross-line gantry crane beam replacement, and under-line elevated trolley beam replacement. Regardless of whether cross-line gantry crane or under-line elevated trolley beam replacement is used, tracks need to be laid on both sides of the bridge to meet the travel requirements of the cross-line gantry crane or elevated trolley. Laying tracks requires land acquisition within a certain range on both sides of the bridge, which is difficult and costly. Furthermore, when the bridge crosses a river or is located in a high mountain or canyon area, laying the running track is technically challenging and carries high operational safety risks. While vertical lifting beam replacement equipment does not require track laying on both sides of the bridge, it faces issues such as the machine exceeding size limits and being unable to pass through tunnels, affecting beam replacement efficiency. Utility Model Content

[0004] To solve the above-mentioned technical problems, this application provides a support leg for a beam replacement device and a beam replacement device.

[0005] The first aspect of this application provides a support leg for a beam-changing device, including a bottom support structure, a telescopic support leg, a conversion structure, an upper crossbeam, a rotation system, and a telescopic system.

[0006] The lower end of the telescopic outrigger is rotatably connected to the bottom support structure;

[0007] The conversion structure is located at the upper end of the telescopic outrigger and can be locked to the upper crossbeam. The upper end of the telescopic outrigger is rotatably connected to the conversion structure.

[0008] The rotating system is connected to the telescopic outrigger for driving the telescopic outrigger to rotate relative to the conversion structure, the upper crossbeam and the bottom support structure, and the rotation axis of the telescopic outrigger is parallel to the telescopic outrigger's extension direction;

[0009] The telescopic system is connected to the telescopic outrigger via a transmission mechanism, and is used to drive the telescopic outrigger to extend or retract.

[0010] In some embodiments, the support leg of the beam-changing device further includes a tilting system, which is connected to the conversion structure and is used to drive the conversion structure, the telescopic support leg, and the bottom support structure to tilt relative to the upper crossbeam when the conversion structure is released from the upper crossbeam.

[0011] In some embodiments, one side of the upper crossbeam along the length direction is rotatably connected to the conversion structure, and a first pin system is provided between the other side of the upper crossbeam along the length direction and the conversion structure. The first pin system is used to lock or unlock the conversion structure to the upper crossbeam.

[0012] In some embodiments, there are two telescopic outriggers, the lower ends of the two telescopic outriggers are rotatably connected to the bottom support structure, and the upper ends of the two telescopic outriggers are respectively provided with a conversion structure. The two conversion structures are located at the two ends of the upper crossbeam along the length direction and can be locked to the upper crossbeam respectively.

[0013] In some embodiments, the two telescopic outriggers each have a vertical outrigger segment, an upper transverse outrigger segment, and a lower transverse outrigger segment. The upper transverse outrigger segment and the lower transverse outrigger segment are respectively connected to both ends of the vertical outrigger segment along the height direction and extend toward the same side of the vertical outrigger segment.

[0014] The support legs of the beam-changing equipment have a supported state and a rotating state. In the supported state, the vertical support leg segments of the two telescopic support legs are far apart from each other; in the rotating state, the vertical support leg segments of the two telescopic support legs are close to each other.

[0015] In some embodiments, a second pin system is provided between the upper end of the conversion structure and the telescopic leg. The second pin system is used to lock the upper end of the telescopic leg to the conversion structure when the telescopic leg is rotated relative to the conversion structure to a preset rotation angle.

[0016] And / or, a third pin system is provided between the bottom support structure and the lower end of the telescopic leg, the third pin system being used to lock the lower end of the telescopic leg to the bottom support structure when the telescopic leg rotates relative to the bottom support structure to a preset rotation angle.

[0017] In some embodiments, the telescopic outrigger includes a first telescopic segment and a second telescopic segment, the first telescopic segment and the second telescopic segment being slidably connected, the telescopic system including a second hydraulic cylinder system, the cylinder end of the second hydraulic cylinder system being connected to one of the first telescopic segment and the second telescopic segment, and the cylinder rod end of the second hydraulic cylinder system being connected to the other of the first telescopic segment and the second telescopic segment.

[0018] In some embodiments, a fourth pin system is provided between the first telescopic section and the second telescopic section, the fourth pin system being used to lock the first telescopic section and the second telescopic section together when the first telescopic section extends to a preset height relative to the second telescopic section.

[0019] In some embodiments, the first telescopic segment is sleeved around the second telescopic segment, and the second telescopic segment is provided with a pin hole;

[0020] The fourth pin system includes two drive cylinders, a connecting component and at least one pin. The cylinder ends of the two drive cylinders are respectively connected to both sides of the first telescopic section, and the cylinder rod ends of the two drive cylinders are both connected to the same connecting component.

[0021] One end of the pin is connected to the connecting component, and the other end of the pin extends away from the connecting component. The pin and the two driving cylinders are located on the same side of the connecting component so that the pin can be driven to insert or pull out of the pin hole by the two driving cylinders.

[0022] A second aspect of this application provides a beam replacement device, including a main beam and beam replacement device legs as described in any of the preceding claims, the beam replacement device legs being connected to the main beam.

[0023] The technical solution provided in this application has the following advantages compared with the prior art:

[0024] The beam-changing equipment legs and beam-changing equipment provided in this application are used to connect to the main beam of the beam-changing equipment. The beam-changing equipment legs include a bottom support structure, telescopic legs, a conversion structure, an upper crossbeam, a rotating system, and a telescopic system. The telescopic system is driven by the telescopic legs to drive the telescopic legs to extend or retract. The rotating system is driven by the telescopic legs to drive the telescopic legs to rotate relative to the conversion structure, the upper crossbeam, and the bottom support structure. The rotation axis of the telescopic legs is parallel to the extension and retraction direction of the telescopic legs. Thus, when the beam-changing equipment needs to be transported, the telescopic legs can be retracted by the telescopic system to reduce the overall height of the beam-changing equipment legs, and the telescopic legs can be rotated relative to the conversion structure, the upper crossbeam, and the bottom support structure by the rotating system to reduce the overall width of the beam-changing equipment legs. This achieves the purpose of reducing the height and width of the entire beam-changing equipment, allowing the entire beam-changing equipment to be within the railway transport clearance limits and to travel on railways without restriction, thereby smoothly passing through tunnels and improving beam-changing efficiency. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a front view structural diagram of the support leg of the beam-changing device in the working posture according to an embodiment of this application;

[0028] Figure 2 for Figure 1 A top view of the support leg of the beam-changing equipment shown.

[0029] Figure 3 for Figure 1 A schematic diagram of the left side structure of the support leg of the beam replacement equipment shown;

[0030] Figure 4 for Figure 1 A three-dimensional structural schematic diagram of the support leg of the beam-changing equipment from a first-view perspective;

[0031] Figure 5 for Figure 4 A partial structural schematic diagram of the upper crossbeam of the support leg of the beam-changing equipment shown.

[0032] Figure 6 for Figure 5 A partial structural diagram showing the removal of a conversion structure at the upper crossbeam of the support leg of the beam-changing equipment.

[0033] Figure 7 for Figure 1 A three-dimensional structural diagram of the support leg of the beam-changing equipment from a second perspective;

[0034] Figure 8 for Figure 7 A partial structural schematic diagram of the upper crossbeam of the support leg of the beam-changing equipment shown.

[0035] Figure 9 for Figure 8 A partial structural diagram showing the removal of the upper crossbeam at the support leg of the beam-changing equipment.

[0036] Figure 10 for Figure 7 A partial structural diagram of the bottom support structure of the beam-changing equipment's outriggers;

[0037] Figure 11 for Figure 10The diagram shows a partial structural diagram of the bottom support structure of the beam-changing equipment with one telescopic leg removed.

[0038] Figure 12 for Figure 7 A partial structural schematic diagram of the fourth pin system of the support leg of the beam-changing equipment shown.

[0039] Figure 13 for Figure 12 The diagram shows a partial structural schematic of the fourth pin system of the support leg of the beam-changing equipment after removing the first and second telescopic sections.

[0040] Figure 14 for Figure 1 A schematic diagram of the telescopic outriggers of the beam-changing equipment rotating 90 degrees.

[0041] Figure 15 for Figure 14 The diagram shows the structural schematic of the beam-changing equipment's outrigger conversion structure, telescopic outriggers, and bottom support structure, which are rotated 90 degrees relative to the upper crossbeam (transport posture).

[0042] The components include: 1. Bottom support structure; 101. Second rotating shaft; 2. Telescopic outrigger; 201. Vertical outrigger section; 202. Upper transverse outrigger section; 203. Lower transverse outrigger section; 204. First telescopic section; 205. Second telescopic section; 206. First rotating shaft; 3. Conversion structure; 4. Upper crossbeam; 5. Rotation system; 6. Telescopic system; 7. Tilting system; 8. Fixing pin; 9. First pin system; 10. Second pin system; 11. Third pin system; 12. Fourth pin system; 121. Drive cylinder; 122. Connecting component; 123. Pin shaft. Detailed Implementation

[0043] To better understand the above-mentioned objectives, features, and advantages of this application, the solution of this application will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0044] Many specific details are set forth in the following description in order to provide a full understanding of this application, but this application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of this application, and not all embodiments.

[0045] The following is a detailed description of the beam-changing equipment legs and beam-changing equipment provided in the embodiments of this application, with reference to the accompanying drawings.

[0046] Some embodiments of this application provide a support leg for a beam replacement device. This support leg can be applied to the beam replacement device, specifically connected to the main beam of the device, and can be used to support the main beam during beam replacement construction. For example, during beam replacement construction, this support leg can be supported at both ends of the adjacent span of the bridge to be replaced, serving as the main load-bearing support leg.

[0047] Reference Figures 1 to 15 As shown in some embodiments of this application, a support leg for a beam-changing device includes a bottom support structure 1, a telescopic support leg 2, a conversion structure 3, an upper crossbeam 4, a rotation system 5, and a telescopic system 6. The lower end of the telescopic support leg 2 is rotatably connected to the bottom support structure 1; the conversion structure 3 is located at the upper end of the telescopic support leg 2 and can be locked to the upper crossbeam 4, with the upper end of the telescopic support leg 2 rotatably connected to the conversion structure 3; the rotation system 5 is drive-connected to the telescopic support leg 2 and is used to drive the telescopic support leg 2 to rotate relative to the conversion structure 3, the upper crossbeam 4, and the bottom support structure 1, with the rotation axis of the telescopic support leg 2 parallel to its telescopic direction; the telescopic system 6 is drive-connected to the telescopic support leg 2 and is used to drive the telescopic support leg 2 to extend or retract.

[0048] The beam-changing equipment support leg provided in this embodiment can be connected to the main beam of the beam-changing equipment. The beam-changing equipment support leg includes a bottom support structure 1, a telescopic support leg 2, a conversion structure 3, an upper crossbeam 4, a rotation system 5, and a telescopic system 6. The telescopic system 6 is driven to the telescopic support leg 2 and is used to drive the telescopic support leg 2 to extend or retract. The rotation system 5 is driven to the telescopic support leg 2 and is used to drive the telescopic support leg 2 to rotate relative to the conversion structure 3, the upper crossbeam 4, and the bottom support structure 1. The rotation axis of the telescopic support leg 2 is parallel to the extension and retraction direction of the telescopic support leg 2. In this way, the telescopic support leg 2 can be extended or retracted by the telescopic system 6 to adjust the overall height of the beam-changing equipment support leg. The telescopic support leg 2 can be rotated relative to the conversion structure 3, the upper crossbeam 4, and the bottom support structure 1 by the rotation system 5 to adjust the overall width of the beam-changing equipment support leg. This achieves the purpose of adjusting the overall height and width of the beam-changing equipment support leg to meet the different needs of the beam-changing equipment support leg for beam-changing and transportation conditions.

[0049] Specifically, the outriggers of the beam-changing equipment can have a working posture (or beam-changing posture) and a transport posture. (See reference...) Figures 1 to 4 , Figure 7 The diagram shown is a structural schematic of the support legs of the beam replacement equipment in the working state. (Refer to...) Figure 14The diagram shows the structure of the beam-changing equipment's outriggers rotating to a transport posture. When the beam-changing equipment needs to be transported (e.g., through a tunnel), the telescopic outriggers 2 can be retracted via the telescopic system 6, reducing the overall height of the outriggers. The rotation system 5 drives the telescopic outriggers 2 to rotate relative to the conversion structure 3, the upper crossbeam 4, and the bottom support structure 1, reducing the overall width of the outriggers. This reduces the overall height and width of the beam-changing equipment, ensuring it remains within the railway transport clearance limits and can travel unrestricted on railways, allowing it to pass smoothly through tunnels. This solves the problem of the outriggers exceeding clearance limits and being unable to pass through tunnels, thus improving beam-changing efficiency. When beam-changing construction is required, the rotation system 5 drives the telescopic outriggers 2 to rotate relative to the conversion structure 3, the upper crossbeam 4, and the bottom support structure 1, changing the outriggers from a transport posture to a working posture. The telescopic system 6 then lifts the telescopic outriggers 2 to the working height, meeting the requirements of beam-changing construction.

[0050] It should be understood that when the telescopic outrigger 2 of the beam replacement equipment is installed vertically, the telescopic direction of the telescopic outrigger 2 is set in the vertical direction, referring to... Figure 4 As shown in the diagram, the double-headed arrows indicate the extension and retraction direction of the telescopic outrigger 2. When the rotating system 5 drives the telescopic outrigger 2 to rotate relative to the conversion structure 3, the upper crossbeam 4, and the bottom support structure 1, the rotation axis of the telescopic outrigger 2 is set in the vertical direction, that is, the rotation axis of the telescopic outrigger 2 is parallel to the extension and retraction direction of the telescopic outrigger 2. In this way, the rotating system 5 can drive the telescopic outrigger 2 to rotate horizontally around the rotation axis, thereby adjusting the overall width of the beam-changing equipment outrigger through the horizontal rotation of the telescopic outrigger 2.

[0051] In some embodiments, refer to Figures 5 to 6 , Figures 8 to 9 As shown, the rotating system 5 may include a first hydraulic cylinder system. The cylinder end of the first hydraulic cylinder system is fixedly connected to the conversion structure 3, and the cylinder rod end of the first hydraulic cylinder system is rotatably connected to the upper end of the telescopic outrigger 2. In this way, the extension or retraction of the first hydraulic cylinder system can be used to drive the telescopic outrigger 2 to rotate relative to the conversion structure 3.

[0052] In some embodiments, refer to Figure 1 , Figure 12 and Figure 13As shown, the telescopic system 6 may include a second hydraulic cylinder system, which can be built into the telescopic outrigger 2. Specifically, the telescopic outrigger 2 may include a first telescopic section 204 and a second telescopic section 205, which are slidably connected. The cylinder end of the second hydraulic cylinder system is connected to one of the first telescopic section 204 and the second telescopic section 205, and the cylinder rod end of the second hydraulic cylinder system is connected to the other of the first telescopic section 204 and the second telescopic section 205. In this way, the extension or retraction of the second hydraulic cylinder system can be used to drive the telescopic outrigger 2 to extend or retract.

[0053] In some embodiments, refer to Figures 1 to 7 , Figures 14 to 15 As shown, the support legs of the beam-changing equipment also include a tilting system 7, which is connected to the conversion structure 3. The tilting system 7 is used to drive the conversion structure 3, telescopic support legs 2, and bottom support structure 1 to tilt relative to the upper crossbeam 4 when the conversion structure 3 is released from the upper crossbeam 4. With this configuration, when the beam-changing equipment needs to be transported, in addition to extending or retracting the telescopic support legs 2 via the telescopic system 6 to adjust the overall height of the support legs, the tilting system 7 can also drive the conversion structure 3, telescopic support legs 2, and bottom support structure 1 to tilt relative to the upper crossbeam 4, thereby tilting the telescopic support legs 2 from a vertical state to a horizontal state. This further reduces the overall height of the beam-changing equipment support legs compared to a vertically positioned telescopic support legs, thus better solving the problem of the beam-changing equipment exceeding its limits and being unable to pass through tunnels.

[0054] It should be understood that the tilting axis of the telescopic outrigger 2 can be set in the horizontal direction, that is, the telescopic outrigger 2 can be driven to tilt vertically by the tilting system 7, thereby adjusting the overall height of the beam changing equipment outrigger through the vertical tilting of the telescopic outrigger 2.

[0055] In practice, when it is necessary to transport the beam replacement equipment, refer to... Figure 14 As shown, the telescopic outrigger 2 can be retracted via the telescopic system 6, reducing the overall height of the beam-changing equipment's outriggers. Furthermore, the telescopic outrigger 2 can be rotated relative to the conversion structure 3, the upper crossbeam 4, and the bottom support structure 1 via the rotation system 5, reducing the overall width of the beam-changing equipment's outriggers. (Refer to...) Figure 15 As shown, the conversion structure 3, telescopic legs 2 and bottom support structure 1 are then driven to flip relative to the upper crossbeam 4 by the flipping system 7, further reducing the overall height of the support legs of the beam changing equipment, thereby reducing the height and width of the entire beam changing equipment. This allows the entire beam changing equipment to be within the railway transport clearance limits, enabling it to travel on the railway without restriction and pass through tunnels smoothly. This solves the problem of the beam changing equipment exceeding the limits and being unable to pass through tunnels, thereby improving beam changing efficiency.

[0056] In some embodiments, refer to Figures 5 to 6 , Figures 8 to 9 As shown, the tilting system 7 may include a third hydraulic cylinder system. The cylinder end of the third hydraulic cylinder system is fixedly connected to the upper crossbeam 4, and the cylinder rod end of the third hydraulic cylinder system is rotatably connected to the conversion structure 3. In this way, the extension or retraction of the third hydraulic cylinder system can be used to drive the conversion structure 3 to tilt relative to the upper crossbeam 4, thereby causing the telescopic outrigger 2 and the bottom support structure 1 to tilt relative to the upper crossbeam 4.

[0057] In some embodiments, refer to Figures 4 to 9 , Figure 14 and Figure 15 As shown, one side of the upper crossbeam 4 along its length is rotatably connected to the conversion structure 3, and a first pin system 9 is provided between the other side of the upper crossbeam 4 along its length and the conversion structure 3. The first pin system 9 is used to lock or unlock the conversion structure 3 and the upper crossbeam 4. Exemplarily, one side of the upper crossbeam 4 along its length can be rotatably connected to the conversion structure 3 via a fixing pin 8, and the other side of the upper crossbeam 4 along its length can be detachably connected to the conversion structure 3 via the first pin system 9.

[0058] When it is necessary to flip the telescopic outrigger 2, the locking of the conversion structure 3 and the upper crossbeam 4 can be released through the first pin system 9, so that the telescopic outrigger 2, the conversion structure 3 and the bottom support structure 1 can be flipped around the fixing pin 8, thereby flipping the telescopic outrigger 2 from the vertical state (e.g., flipping it 90 degrees) to the horizontal state, reducing the overall height of the beam-changing equipment outrigger. When it is necessary to use the beam-changing equipment for beam-changing construction, the telescopic outrigger 2 can be flipped in the opposite direction, flipping the telescopic outrigger 2 from the horizontal state (e.g., flipping it 90 degrees) to the vertical state, and then the first pin system 9 can be used to lock the conversion structure 3 and the upper crossbeam 4, thereby ensuring that the beam-changing equipment outrigger is stable and reliable when working.

[0059] In specific implementation, refer to Figure 9 As shown, the first pin system 9 may include a first telescopic cylinder and a first pin. The cylinder end of the first telescopic cylinder is fixed on the upper crossbeam 4, and the cylinder rod end of the first telescopic cylinder is fixed to the first pin. A first pin hole may be provided on the conversion structure 3. When the first pin and the first pin hole are aligned, the first pin can be driven by the first telescopic cylinder to insert into the first pin hole, thereby locking the upper crossbeam 4 and the conversion structure 3. The first pin can be driven by the first telescopic cylinder to pull out of the first pin hole, thereby releasing the upper crossbeam 4 from the conversion structure 3.

[0060] In practical implementation, the first latch system 9 can be an automatic latch system to achieve the purpose of automatic latching. Of course, the first latch system 9 can also adopt a manual latch structure.

[0061] In some embodiments, refer to Figure 1 , Figure 4 , Figure 7 , Figure 14 and Figure 15 As shown, there are two telescopic outriggers 2. The lower ends of the two telescopic outriggers 2 are rotatably connected to the bottom support structure 1, and the upper ends of the two telescopic outriggers 2 are each provided with a conversion structure 3. The two conversion structures 3 are located at the two ends of the upper crossbeam 4 along the length direction and can be locked to the upper crossbeam 4. By setting two telescopic outriggers 2, the stability of the main beam of the beam changing equipment supported by the outriggers of the beam changing equipment is ensured. The conversion structure 3 is provided at the upper end of each telescopic outrigger 2. When the conversion structure 3 is locked to the upper crossbeam 4, the telescopic outrigger 2 can rotate relative to the conversion structure 3, thereby rotating the telescopic outrigger 2 relative to the upper crossbeam 4.

[0062] In some embodiments, refer to Figure 1 As shown, the two telescopic outriggers 2 each have a vertical outrigger section 201, an upper transverse outrigger section 202, and a lower transverse outrigger section 203. The upper transverse outrigger section 202 and the lower transverse outrigger section 203 are respectively connected to the two ends of the vertical outrigger section 201 along the height direction and extend towards the same side of the vertical outrigger section 201. The outriggers of the beam-changing equipment have a supported state and a rotating state. In the supported state, the vertical outrigger sections 201 of the two telescopic outriggers 2 are far apart from each other; in the rotating state, the vertical outrigger sections 201 of the two telescopic outriggers 2 are close to each other. With this configuration, when the vertical outrigger sections 201 of the two telescopic outriggers 2 are far apart from each other, a larger space can be formed between the vertical outrigger sections 201 of the two telescopic outriggers 2 to allow the new and old beams to be replaced to pass smoothly; when the vertical outrigger sections 201 of the two telescopic outriggers 2 are close to each other, the overall width of the outriggers of the beam-changing equipment can be reduced to meet the requirements of the transportation clearance.

[0063] In specific implementation, refer to Figure 1 , Figure 4 and Figure 7 As shown, when the support legs of the beam-changing equipment are in the supported state, the vertical support leg sections 201 of the two telescopic support legs 2 can be far apart from each other and on the same vertical plane; refer to Figure 14 As shown, by rotating the two telescopic outriggers 2 90 degrees towards each other, the vertical outrigger sections of the two telescopic outriggers 2 can be rotated to a state where they are close to each other and parallel to each other, thus realizing the switch of the outriggers of the beam changing equipment from a supporting state to a rotating state.

[0064] In some embodiments, refer to Figure 5 and Figure 6As shown, a second pin system 10 is provided between the upper ends of the conversion structure 3 and the telescopic outrigger 2. The second pin system 10 is used to lock the upper end of the telescopic outrigger 2 to the conversion structure 3 when the telescopic outrigger 2 rotates relative to the conversion structure 3 to a preset rotation angle. With this configuration, when the telescopic outrigger 2 rotates relative to the conversion structure 3 to a supported state, for example, when the vertical outrigger segments 201 of the two telescopic outriggers 2 are far apart and on the same vertical plane, the upper end of the telescopic outrigger 2 and the conversion structure 3 can be locked by the second pin system 10, thereby keeping the telescopic outrigger 2 in a supported state and ensuring the reliability and stability of the outriggers during beam replacement construction.

[0065] In practice, the second pin system 10 can be an automatic pin system to achieve automatic pinning. Of course, the second pin system 10 can also adopt a manual pin structure.

[0066] In specific implementation, refer to Figure 6 As shown, the upper end of the telescopic outrigger 2 can be rotatably connected to the conversion structure 3 via a first rotating shaft 206. Specifically, the first rotating shaft 206 can be fixed to the upper end of the telescopic outrigger 2 and rotatably connected to the conversion structure 3. The second pin system 10 can include a second telescopic cylinder and a second pin. The cylinder end of the second telescopic cylinder can be fixed to the conversion structure 3, and the cylinder rod end of the second telescopic cylinder can be fixed to the second pin. A second pin hole can be provided on the first rotating shaft 206. When the second pin and the second pin hole are aligned, the second pin can be driven by the second telescopic cylinder to insert into the second pin hole, thereby locking the upper end of the telescopic outrigger 2 to the conversion structure 3. The second pin can be driven by the second telescopic cylinder to pull out of the second pin hole, thereby releasing the upper end of the telescopic outrigger 2 from the conversion structure 3.

[0067] In some embodiments, refer to Figure 10 and Figure 11 As shown, a third pin system 11 is provided between the lower ends of the bottom support structure 1 and the telescopic outrigger 2. The third pin system 11 is used to lock the lower end of the telescopic outrigger 2 to the bottom support structure 1 when the telescopic outrigger 2 rotates relative to the bottom support structure 1 to a preset rotation angle. With this configuration, when the telescopic outrigger 2 rotates relative to the bottom support structure 1 to a supported state, for example, when the vertical outrigger segments 201 of the two telescopic outriggers 2 are far apart and on the same vertical plane, the lower end of the telescopic outrigger 2 and the bottom support structure 1 can be locked by the third pin system 11, thereby keeping the telescopic outrigger 2 in a supported state and ensuring the reliability and stability of the outriggers during beam replacement construction.

[0068] In practice, the third bolt system 11 can be an automatic bolt system to achieve the purpose of automatic bolting. Of course, the third bolt system 11 can also adopt a manual bolt structure.

[0069] In specific implementation, refer to Figure 11 As shown, the lower end of the telescopic outrigger 2 can be rotatably connected to the bottom support structure 1 via the second rotating shaft 101. Specifically, the second rotating shaft 101 can be fixed on the bottom support structure 1 and rotatably connected to the lower end of the telescopic outrigger 2. The third pin system 11 can include a third telescopic cylinder and a third pin. The cylinder end of the third telescopic cylinder can be fixed to the lower end of the telescopic outrigger 2, and the cylinder rod end of the third telescopic cylinder can be fixed to the third pin. A third pin hole can be provided on the second rotating shaft 101. When the third pin and the third pin hole are aligned, the third pin can be driven by the third telescopic cylinder to insert into the third pin hole, thereby locking the lower end of the telescopic outrigger 2 to the bottom support structure 1. The third pin can be driven by the third telescopic cylinder to pull out of the third pin hole, thereby releasing the lower end of the telescopic outrigger 2 from the bottom support structure 1.

[0070] In some embodiments, refer to Figure 3 , Figure 12 and Figure 13 As shown, the telescopic outrigger 2 includes a first telescopic section 204 and a second telescopic section 205, which are slidably connected. The telescopic system 6 includes a second hydraulic cylinder system. The cylinder end of the second hydraulic cylinder system is connected to one of the first telescopic section 204 and the second telescopic section 205, and the cylinder rod end of the second hydraulic cylinder system is connected to the other of the first telescopic section 204 and the second telescopic section 205. This configuration allows the second hydraulic cylinder system to drive the first telescopic section 204 of the telescopic outrigger 2 to slide relative to the second telescopic section 205, thereby extending or retracting the telescopic outrigger 2. In a specific implementation, the second hydraulic cylinder system can be built inside the first telescopic section 204 and the second telescopic section 205 of the telescopic outrigger 2.

[0071] In some embodiments, refer to Figure 12 and Figure 13 As shown, a fourth pin system 12 is provided between the first telescopic section 204 and the second telescopic section 205. The fourth pin system 12 is used to lock the first telescopic section 204 and the second telescopic section 205 together when the first telescopic section 204 extends to a preset height relative to the second telescopic section 205. With this configuration, when the telescopic outrigger 2 is in the extended state, the first telescopic section 204 and the second telescopic section 205 of the telescopic outrigger 2 can be locked by the fourth pin system 12, so that the telescopic outrigger 2 remains in the extended state, ensuring the safe and reliable operation of the telescopic outrigger 2; when the telescopic outrigger 2 needs to be retracted, the first telescopic section 204 and the second telescopic section 205 of the telescopic outrigger 2 can be released by the fourth pin system 12.

[0072] In practical implementation, the fourth pin system 12 can be an automatic pin system to achieve the purpose of automatic pinning. Of course, the fourth pin system can also adopt a manual pin structure.

[0073] In some embodiments, the first telescopic section 204 is sleeved around the second telescopic section 205, and the second telescopic section 205 is provided with a pin hole (or, a fourth pin hole); the fourth pin system 12 includes two drive cylinders 121, a connecting component 122 and at least one pin 123 (or, a fourth pin), the cylinder ends of the two drive cylinders 121 are respectively connected to both sides of the first telescopic section 204, and the cylinder rod ends of the two drive cylinders 121 are both connected to the same connecting component 122; one end of the pin 123 is connected to the connecting component 122, and the other end of the pin 123 extends in a direction away from the connecting component 122, and the pin 123 and the two drive cylinders 121 are located on the same side of the connecting component 122, so that the pin 123 can be driven by the two drive cylinders 121 to insert or pull out of the pin hole. This configuration allows two drive cylinders 121 to simultaneously drive the pin shaft 123 to insert or pull out of the pin hole. In other words, the fourth pin insertion system 12 adopts a dual-cylinder system, thereby ensuring a stable and reliable pin insertion process.

[0074] To ensure the reliability of limiting the telescopic outrigger 2 using the fourth pin system 12, the fourth pin system 12 may include two pins 123, both of which are connected to the same connecting component 122. The second telescopic section 205 is provided with pin holes that correspond one-to-one with the two pins 123, so that the two pins 123 can be simultaneously inserted into or pulled out of the two pin holes by two driving cylinders 121.

[0075] In some embodiments, when the support legs of the beam-changing equipment are in the transport state, both telescopic support legs 2 are in the retracted state, close to each other, and in a horizontal position. The working mode of the support legs of the beam-changing equipment is as follows:

[0076] When beam replacement equipment is needed for beam replacement construction, the support legs of the beam replacement equipment need to be changed from the transportation posture to the working posture. (1) The telescopic support legs 2, the conversion structure 3 and the bottom support structure 1 of the beam replacement equipment support legs are flipped relative to the upper crossbeam 4 by the flipping system 7 (vertically flipped downwards), so that the telescopic support legs 2 are flipped 90 degrees from the horizontal state to the vertical state. Then, the conversion structure 3 and the upper crossbeam 4 are locked by the first pin system 9. (2) The telescopic support legs 2 of the beam replacement equipment support legs are driven to rotate relative to the conversion structure 3, the upper crossbeam 4 and the bottom support structure 1 by the rotation system 5 (rotated horizontally in the first clockwise direction). Each telescopic outrigger 2 rotates 90 degrees away from each other, so that the two telescopic outriggers 2 rotate to be far apart from each other and located on the same vertical plane. Then, the upper end of the telescopic outrigger 2 is locked to the conversion structure 3 by the second pin system 10, and the lower end of the telescopic outrigger 2 is locked to the bottom support structure 1 by the third pin system 11. (3) The telescopic outrigger 2 is extended by the telescopic system 6 until the telescopic outrigger 2 reaches the working height. Then, the first telescopic section 204 and the second telescopic section 205 of the telescopic outrigger 2 are locked by the fourth pin system 12 to complete the transformation of the transportation posture to the working posture and meet the requirements of beam replacement construction.

[0077] When the beam replacement construction is completed and the beam replacement equipment needs to be transported, the support legs of the beam replacement equipment need to be changed from the working posture to the transportation posture. (1) The fourth pin system 12 is pulled out to release the locking of the first telescopic section 204 and the second telescopic section 205 of the telescopic support leg 2. Then, the telescopic support leg 2 is retracted through the telescopic system 6. (2) The third pin system 11 and the second pin system 10 are pulled out to release the locking of the lower end of the telescopic support leg 2 to the bottom support structure 1 through the third pin system 11, and the locking of the upper end of the telescopic support leg 2 to the conversion structure 3 through the second pin system 10. Then, the beam replacement equipment is driven by the rotation system 5. The telescopic outrigger 2 of the outrigger rotates relative to the conversion structure 3, the upper crossbeam 4 and the bottom support structure 1 (rotates horizontally in the second clockwise direction), and the two telescopic outriggers 2 rotate 90 degrees towards each other, so that the two telescopic outriggers 2 rotate to an angle that is close to each other and parallel to each other; (3) the first pin system 9 pulls out the pin, and then the flipping system 7 flips the telescopic outrigger 2, the conversion structure 3 and the bottom support structure 1 of the beam changing equipment outrigger relative to the upper crossbeam 4 (flips vertically upward), so that the telescopic outrigger 2 flips 90 degrees from the vertical state to the horizontal state, and completes the transformation of the working posture to the transportation posture, so as to meet the requirements of the beam changing equipment outrigger limit for the transportation working condition.

[0078] Other embodiments of this application provide a beam replacement device, including a main beam and beam replacement device legs as described in any of the above embodiments, the beam replacement device legs being connected to the main beam.

[0079] The beam-changing device provided in this application has the same beneficial effects as the beam-changing device support legs of any of the above embodiments, which will not be elaborated further here.

[0080] In summary, the beam-changing equipment outriggers and beam-changing equipment provided in this application can switch between beam-changing posture and transportation posture. When the outriggers are in transportation posture, it can ensure that the clearance of the entire machine is within the railway transportation clearance, allowing it to travel on the railway without restriction and pass smoothly through tunnels. Furthermore, the flipping, rotation, extension, and pinning processes of the outriggers can all be automatically controlled, making operation simple, safe, and highly efficient.

[0081] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0082] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A support leg for a beam replacement device, characterized in that, It includes a bottom support structure, telescopic outriggers, conversion structure, upper crossbeam, rotation system, and telescopic system; The lower end of the telescopic outrigger is rotatably connected to the bottom support structure; The conversion structure is located at the upper end of the telescopic outrigger and can be locked to the upper crossbeam. The upper end of the telescopic outrigger is rotatably connected to the conversion structure. The rotating system is connected to the telescopic outrigger for driving the telescopic outrigger to rotate relative to the conversion structure, the upper crossbeam and the bottom support structure, and the rotation axis of the telescopic outrigger is parallel to the telescopic outrigger's extension direction; The telescopic system is connected to the telescopic outrigger via a transmission mechanism, and is used to drive the telescopic outrigger to extend or retract.

2. The support leg of the beam-changing equipment according to claim 1, characterized in that, It also includes a flipping system, which is connected to the conversion structure and is used to drive the conversion structure, the telescopic leg and the bottom support structure to flip relative to the upper crossbeam when the conversion structure is released from the upper crossbeam.

3. The support leg of the beam-changing equipment according to claim 1, characterized in that, One side of the upper crossbeam along the length direction is rotatably connected to the conversion structure, and a first pin system is provided between the other side of the upper crossbeam along the length direction and the conversion structure. The first pin system is used to lock or unlock the conversion structure to the upper crossbeam.

4. The support leg of the beam-changing equipment according to claim 1, characterized in that, The number of telescopic outriggers is two. The lower ends of the two telescopic outriggers are rotatably connected to the bottom support structure. The upper ends of the two telescopic outriggers are respectively provided with a conversion structure. The two conversion structures are located at the two ends of the upper crossbeam along the length direction and can be locked to the upper crossbeam.

5. The support leg of the beam-changing equipment according to claim 4, characterized in that, The two telescopic outriggers each have a vertical outrigger section, an upper transverse outrigger section, and a lower transverse outrigger section. The upper transverse outrigger section and the lower transverse outrigger section are respectively connected to both ends of the vertical outrigger section along the height direction and extend toward the same side of the vertical outrigger section. The support legs of the beam-changing equipment have a supported state and a rotating state. In the supported state, the vertical support leg segments of the two telescopic support legs are far apart from each other; in the rotating state, the vertical support leg segments of the two telescopic support legs are close to each other.

6. The support leg of the beam-changing equipment according to claim 1, characterized in that, A second pin system is provided between the conversion structure and the upper end of the telescopic leg. The second pin system is used to lock the upper end of the telescopic leg to the conversion structure when the telescopic leg is rotated relative to the conversion structure to a preset rotation angle. And / or, a third pin system is provided between the bottom support structure and the lower end of the telescopic leg, the third pin system being used to lock the lower end of the telescopic leg to the bottom support structure when the telescopic leg rotates relative to the bottom support structure to a preset rotation angle.

7. The support leg of the beam-changing equipment according to claim 1, characterized in that, The telescopic outrigger includes a first telescopic section and a second telescopic section, which are slidably connected. The telescopic system includes a second hydraulic cylinder system, where the cylinder end of the second hydraulic cylinder system is connected to one of the first telescopic section and the second telescopic section, and the cylinder rod end of the second hydraulic cylinder system is connected to the other of the first telescopic section and the second telescopic section.

8. The support leg of the beam-changing equipment according to claim 7, characterized in that, A fourth pin system is provided between the first telescopic section and the second telescopic section. The fourth pin system is used to lock the first telescopic section and the second telescopic section together when the first telescopic section extends to a preset height relative to the second telescopic section.

9. The support leg of the beam-changing equipment according to claim 8, characterized in that, The first telescopic section is sleeved around the second telescopic section, and the second telescopic section is provided with pin holes; The fourth pin system includes two drive cylinders, a connecting component and at least one pin. The cylinder ends of the two drive cylinders are respectively connected to both sides of the first telescopic section, and the cylinder rod ends of the two drive cylinders are both connected to the same connecting component. One end of the pin is connected to the connecting component, and the other end of the pin extends away from the connecting component. The pin and the two driving cylinders are located on the same side of the connecting component so that the pin can be driven to insert or pull out of the pin hole by the two driving cylinders.

10. A beam-changing device, characterized in that, It includes a main beam and a beam-changing equipment support leg as described in any one of claims 1 to 9, the beam-changing equipment support leg being connected to the main beam.

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