Lifting equipment of cantilever bridge fabrication machine

Abstract

The invention provides hoisting equipment of a cantilever bridge fabrication machine, which belongs to the technical field of bridge construction, is arranged on a truss of the bridge fabrication machine and comprises two track beams, a cross beam and an electric hoist. The two track beams are arranged on the truss in parallel and fixedly connected with the truss. The cross beam is arranged between the two track beams and walks in the length direction of the track beams through the driving assembly, and the length direction of the cross beam is perpendicular to the length direction of the track beams. The electric hoist walks on the cross beam in the length direction of the cross beam. The number of the driving assemblies is two, the driving assemblies correspond to the two track beams in a one-to-one mode, and the driving assemblies have self-locking performance so that when the cross beams stop on the track beams, the cross beams and the track beams can be locked. According to the hoisting equipment of the cantilever bridge fabrication machine, an operator can directly observe and operate the hoisting process on a bridge floor, so that the hoisting position deviation caused by inconvenient observation is effectively avoided, and the hoisting accuracy and safety are greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction, and more specifically, relates to a cantilever bridge-building machine hoisting equipment. Background Art

[0002] A bridge-building machine is a large-scale special equipment used for the construction of bridge superstructures. It can efficiently complete the prefabrication or cast-in-place construction of beams at the bridge site, integrating multiple complex processes such as formwork installation, steel bar binding, concrete pouring, and prestressing to achieve mechanization and automation of bridge construction.

[0003] During the bridge construction process, even with a bridge-building machine, there will still be a large amount of materials and construction tools that need to be transported and deployed on the bridge deck. The existing lifting method is to use a crane parked on the ground for lifting, but the crane is parked on the ground, and it is inconvenient to observe when lifting and transferring items on the bridge deck, which leads to the easy deviation of the lifting position. Summary of the invention

[0004] The purpose of the present invention is to provide a cantilever bridge-building machine lifting equipment, aiming to facilitate the lifting and transfer of objects on the bridge deck.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a cantilever bridge-building machine hoisting equipment, which is arranged on the truss of the bridge-building machine, comprising: Two track beams are arranged in parallel on the truss and fixedly connected to the truss; A crossbeam is disposed between the two track beams and moves along the length direction of the track beams through a driving assembly, wherein the length direction of the crossbeam is perpendicular to the length direction of the track beams; and An electric hoist moves on the crossbeam along the length direction of the crossbeam; There are two driving components, which correspond one to one with the two track beams. The driving components are self-locking, so that when the crossbeam stops on the track beam, the crossbeam is locked with the track beam.

[0006] In a possible implementation, a fixing seat is fixedly provided on the driving assembly, and the upper end of the fixing seat is open so that the crossbeam can be placed in the fixing seat from top to bottom, and the inner peripheral wall of the fixing seat abuts against the outer peripheral wall of the crossbeam; A pressure plate is provided on the fixing seat along the width direction of the beam, the pressure plate abuts against the upper surface of the beam, and two ends of the pressure plate respectively pass through the fixing seat and extend outward to form an extension portion, and the extension portion and the beam are connected via a positioning piece.

[0007] In one possible implementation, a guide hole is provided on the fixing seat for the extension portion to pass through, and the guide hole extends along the length direction of the beam and is inclined downward. When the positioning member connects the extension portion and the beam, the extension portion slides along the guide hole, and the pressure plate moves toward the direction close to the beam and presses against the upper surface of the beam.

[0008] In a possible implementation manner, a collar is rotatably provided on a side of the extension portion facing away from the pressing plate, and the positioning member is connected to the collar.

[0009] In a possible implementation, when the collar is aligned with the guide hole, the collar avoids the fixing seat so that the collar can pass through the guide hole; When the collar is misaligned with the guide hole, the collar abuts against the fixing seat.

[0010] In a possible implementation, the positioning member includes: A positioning plate, fixedly arranged at the end of the crossbeam; A positioning rod, two ends of which respectively penetrate the collar and the positioning plate; A positioning block, fixedly arranged at one end of the positioning rod and abutting against the positioning plate; A positioning nut is threadedly connected to the other end of the positioning rod and abuts against the collar.

[0011] In a possible implementation, a rack is fixedly provided on the track beam along the length direction; and the driving assembly includes: A connecting seat, fixedly arranged on the crossbeam; A running wheel, rotatably arranged on the connecting seat, and rollingly arranged on the track beam; A driving gear is rotatably disposed on the connecting seat and meshes with the rack.

[0012] In a possible implementation, the driving component further includes: A worm gear is rotatably disposed on the connecting seat and is coaxially fixed with the driving gear; A worm, rotatably disposed on the connecting seat and meshing with the worm wheel, wherein the helix angle of the worm is smaller than the equivalent friction angle; The driving motor is fixedly arranged on the connecting seat, and the output end thereof is connected to the worm.

[0013] In a possible implementation, the crossbeam includes a plurality of crossbeam units connected in sequence along a length direction, two adjacent crossbeam units are connected via a connecting piece, and the connecting piece and the crossbeam unit are connected via bolts.

[0014] In a possible implementation, a diagonal brace is fixedly provided between the track beam and the truss.

[0015] Compared with the prior art, the lifting equipment of a cantilever bridge-building machine provided by the present invention has the following beneficial effects: the lifting equipment is arranged on the truss of the bridge-building machine, and the operator can directly observe and operate the lifting process on the bridge deck, with a clearer and wider field of vision, and can accurately determine the starting position and target position of the hoisted object, effectively avoiding the deviation of the lifting position caused by inconvenient observation, and greatly improving the accuracy and safety of the lifting. During the lifting process, the operator can accurately control the longitudinal position of the crossbeam on the track beam and the lateral position of the electric hoist on the crossbeam, thereby realizing accurate path planning and positioning of the hoisted object in a two-dimensional plane on the bridge deck. The self-locking property of the drive assembly enables the crossbeam to remain fixed even if it is subject to external interference forces when it needs to be accurately placed at the target position during the lifting process, avoiding the risk of collision or falling of the hoisted object caused by accidental movement, further enhancing the safety and stability of the lifting process, and ensuring the safety of construction personnel and construction sites. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the overall structure of a cantilever bridge-building machine hoisting device provided in an embodiment of the present invention; Figure 2 A cross-sectional view of a connection socket provided by an embodiment of the present invention; Figure 3 for Figure 1 A schematic diagram of the enlarged structure of part A; Figure 4 for Figure 2 Schematic diagram of the enlarged structure of part B.

[0018] In the figure: 1, truss; 2, track beam; 21, rack; 3, crossbeam; 31, crossbeam unit; 4, electric hoist; 51, fixed seat; 511, guide hole; 52, pressure plate; 521, extension; 522, collar; 61, positioning plate; 62, positioning rod; 63, positioning block; 64, positioning nut; 71, connecting seat; 72, walking wheel; 73, driving gear; 74, worm gear; 75, worm; 76, driving motor; 8, connecting piece; 9, diagonal brace. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0020] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0021] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" may include both "above" and "below". The device may also be positioned in other different ways, and the spatially relative descriptions used here are interpreted accordingly.

[0022] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0023] See also Figure 1 Now, a cantilever bridge-building machine lifting device provided by the present invention is described. A cantilever bridge-building machine lifting device is arranged on the truss 1 of the bridge-building machine. The operator can directly observe and operate the lifting process on the bridge deck, with a clearer and wider field of vision, and can accurately determine the starting position and target position of the lifting object, effectively avoiding the lifting position deviation caused by inconvenient observation, and greatly improving the accuracy and safety of lifting.

[0024] See also Figure 1 The cantilever bridge crane hoisting equipment includes two track beams 2, a cross beam 3 and an electric hoist 4. Among them, the two track beams 2 are arranged side by side on the truss 1 and are fixedly connected to the truss 1. The cross beam 3 is arranged between the two track beams 2, and moves along the length direction of the track beam 2 through the driving component, and the length direction of the cross beam 3 is perpendicular to the length direction of the track beam 2. The electric hoist 4 moves on the cross beam 3 along the length direction of the cross beam 3. The number of driving components is two and corresponds to the two track beams 2 one by one. The driving component has self-locking properties, so that when the cross beam 3 stops on the track beam 2, the cross beam 3 is locked with the track beam 2.

[0025] During the lifting process, the operator can accurately control the longitudinal position of the beam 3 on the track beam 2 and the lateral position of the electric hoist 4 on the beam 3, thereby achieving accurate path planning and positioning of the lifted objects in a two-dimensional plane on the bridge deck.

[0026] The track beam 2 and the cross beam 3 form a stable hoisting frame structure, which is closely connected to the truss 1 of the bridge-building machine and can withstand large hoisting loads and maintain structural stability. When hoisting heavier construction materials or tools, this stable structural design can effectively prevent hoisting accidents caused by structural deformation or shaking, ensuring the safety and reliability of the hoisting process.

[0027] When the crossbeam 3 stops on the track beam 2, the crossbeam 3 and the track beam 2 can be automatically locked, avoiding the risk of collision or falling of the hoisted objects due to accidental movement, further enhancing the safety and stability of the hoisting process, and ensuring the safety of construction workers and construction sites.

[0028] In some embodiments, see Figure 2 and Figure 3 A fixing seat 51 is fixedly arranged on the driving assembly, and the upper end of the fixing seat 51 is open, so that the cross beam 3 can be placed in the fixing seat 51 from top to bottom, and the inner peripheral wall of the fixing seat 51 abuts against the outer peripheral wall of the cross beam 3. A pressing plate 52 is penetrated on the fixing seat 51 along the width direction of the cross beam 3, and the pressing plate 52 abuts against the upper surface of the cross beam 3. Both ends of the pressing plate 52 respectively penetrate the fixing seat 51 and extend outward to form an extension part 521, and the extension part 521 and the cross beam 3 are connected by a positioning member.

[0029] Specifically, when installing the cross beam 3, first put the cross beam 3 into the fixing seat 51 from top to bottom, at which time the inner peripheral wall of the fixing seat 51 abuts against the outer peripheral wall of the cross beam 3, providing preliminary lateral support and positioning for the cross beam 3. Then, the pressing plate 52 passes through the fixing seat 51 along the width direction of the cross beam 3 and abuts against the upper surface of the cross beam 3, and the pressing plate 52 is tightly connected to the cross beam 3 through the extension part 521 and the positioning piece, so that the installation of the cross beam 3 on the track beam 2 is more stable, effectively preventing the cross beam 3 from displacement or shaking, ensuring the smooth progress of the lifting operation, and improving the reliability and safety of the lifting equipment.

[0030] In some embodiments, see Figure 2 , Figure 3 and Figure 4 A guide hole 511 is provided on the fixing seat 51 for the extension part 521 to pass through. The guide hole 511 extends along the length direction of the beam 3 and is inclined downward. When the positioning piece connects the extension part 521 and the beam 3, the extension part 521 slides along the guide hole 511, and the pressure plate 52 moves toward the direction close to the beam 3 and presses against the upper surface of the beam 3.

[0031] When the positioning member connects the extension part 521 and the beam 3, the positioning member generates a fastening force on the extension part 521 and the beam 3, so that the extension part 521 and the beam 3 are close to each other. Since the guide hole 511 extends along the length direction of the beam 3 and tilts downward, the extension part 521 will slide along the guide hole 511. In this process, the pressure plate 52 will automatically move toward the direction close to the beam 3 and press against the upper surface of the beam 3, ensuring the stability of the beam 3 in the fixing seat 51.

[0032] At the same time, the size of the guide hole 511 is adapted to the size of the pressing plate 52 , so that when the pressing plate 52 is aligned with the guide hole 511 , the pressing plate 52 can pass through the guide hole 511 and be inserted into or pulled out of the fixing seat 51 .

[0033] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The extension part 521 is rotatably provided with a collar 522 on one side away from the pressing plate 52, and the positioning member is connected to the collar 522. The collar 522 provides flexibility for the connection between the positioning member and the extension part 521. When installing the positioning member, the collar 522 can be rotated relative to the extension part 521, which facilitates the connection operation of the positioning member.

[0034] In some embodiments, when the collar 522 is aligned with the guide hole 511, the collar 522 avoids the fixing seat 51, so that the collar 522 can pass through the guide hole 511. When the collar 522 is misaligned with the guide hole 511, the collar 522 abuts against the fixing seat 51.

[0035] When the collar 522 is aligned with the guide hole 511, the collar 522 can pass through the guide hole 511, thereby facilitating the insertion of the pressing plate 52 on the fixing seat 51. When the collar 522 is misaligned with the guide hole 511, the collar 522 will abut against the fixing seat 51, thereby ensuring the stability of the pressing plate 52 on the fixing seat 51, so that the pressing plate 52 cannot be separated from the fixing seat 51.

[0036] In some embodiments, see Figure 2 , Figure 3 and Figure 4 The positioning member includes a positioning plate 61, a positioning rod 62, a positioning block 63 and a positioning nut 64. Among them, the positioning plate 61 is fixedly set at the end of the crossbeam 3. The two ends of the positioning rod 62 pass through the collar 522 and the positioning plate 61 respectively. The positioning block 63 is fixedly set at one end of the positioning rod 62 and abuts against the positioning plate 61. The positioning nut 64 is threadedly connected to the other end of the positioning rod 62 and abuts against the collar 522. A waist-shaped hole is provided on the positioning plate 61 to allow the positioning rod 62 to pass through. The end of the positioning rod 62 away from the positioning block 63 is provided with an external thread matching the positioning nut 64, so that the positioning nut 64 is threadedly connected to the positioning rod 62.

[0037] During installation, first, the positioning rod 62 is passed through the positioning plate 61 and the collar 522. Among them, the waist-shaped hole on the positioning plate 61 facilitates the adjustment of the initial position of the positioning rod 62 and the installation of the positioning rod 62. At the same time, by rotating the collar 522, it can be more easily aligned with the positioning rod 62, thereby reducing the difficulty of installing the positioning rod 62. Then, by screwing the positioning nut 64 in the direction close to the positioning block 63, the collar 522 is pushed, and the collar 522 drives the extension 521 to slide along the guide hole 511, so that the pressure plate 52 moves in the direction close to the beam 3 and presses against the upper surface of the beam 3. The dual limiting effect of the positioning block 63 and the positioning nut 64 enables the positioning rod 62 to remain stable when subjected to various external forces, prevents the beam 3 from being displaced due to loosening, and ensures the safety and reliability of the lifting operation.

[0038] In some embodiments, see Figure 2 A rack 21 is fixedly arranged on the track beam 2 along the length direction. The driving assembly includes a connecting seat 71, a running wheel 72 and a driving gear 73. Among them, the connecting seat 71 is fixedly arranged on the cross beam 3. The running wheel 72 is rotatably arranged on the connecting seat 71 and rollingly arranged on the track beam 2. The driving gear 73 is rotatably arranged on the connecting seat 71 and meshes with the rack 21.

[0039] The arrangement of the running wheel 72 makes the connecting seat 71 move more smoothly on the track beam 2, reduces the friction resistance, and thus improves the stability of the movement of the cross beam 3. The meshing action of the driving gear 73 and the rack 21 enables the cross beam 3 to achieve accurate straight line travel on the track beam 2.

[0040] The rack 21 is arranged on the upper side of the track beam 2, and the driving gear 73 is located at the upper end of the connecting seat 71, so that the driving gear 73 and the rack 21 do not need to share the weight of the crossbeam 3, thereby reducing the wear between the driving gear 73 and the rack 21, extending the service life of the driving component, and reducing the maintenance cost of the equipment.

[0041] In some embodiments, see Figure 2 The drive assembly also includes a worm wheel 74, a worm 75 and a drive motor 76. The worm wheel 74 is rotatably disposed on the connection seat 71 and is coaxially fixed with the drive gear 73. The worm 75 is rotatably disposed on the connection seat 71 and meshes with the worm wheel 74. The helix angle of the worm 75 is less than the equivalent friction angle. The drive motor 76 is fixedly disposed on the connection seat 71, and the output end is connected to the worm 75.

[0042] The meshing transmission of the worm wheel 74 and the worm 75 has the advantages of large transmission ratio, stable transmission and self-locking. The power output by the driving motor 76 is transmitted to the worm wheel 74 through the worm 75, and then the worm wheel 74 drives the driving gear 73 to rotate, so that the travel speed and position of the cross beam 3 can be accurately controlled. At the same time, when the driving motor 76 outputs power, the deceleration and torque increase effect of the worm wheel 74 and the worm 75 can enable the driving gear 73 to obtain a larger torque output, so that the cross beam 3 can be driven to travel on the track beam 2 more easily.

[0043] In some embodiments, see Figure 2 The cross beam 3 includes a plurality of cross beam 3 units connected in sequence along the length direction, and two adjacent cross beam 3 units are connected via a connecting member 8, and the connecting member 8 and the cross beam 3 units are connected via bolts.

[0044] The modular design makes the assembly of the crossbeam 3 more flexible and convenient. At the manufacturing, transportation or installation site of the lifting equipment, each crossbeam 3 unit can be transported first and then quickly assembled on site according to actual needs and site conditions. If the space at the bridge construction site is limited and the overly long crossbeam 3 cannot be transported as a whole, the crossbeam 3 can be split into multiple units and assembled after being transported to the site, which greatly improves the adaptability and operability of the lifting equipment. At the same time, during the maintenance or repair of the lifting equipment, if a crossbeam 3 unit is damaged, it can also be easily disassembled and replaced, which reduces the maintenance cost and difficulty and improves the maintainability and availability of the equipment.

[0045] In some embodiments, see Figure 1A diagonal brace 9 is fixedly arranged between the track beam 2 and the truss 1. The diagonal brace 9 fixedly arranged between the track beam 2 and the truss 1 provides additional support and stability for the entire lifting equipment. The diagonal brace 9 can effectively share the load borne by the track beam 2, transfer part of the force to other parts of the truss 1, avoid deformation or damage of the track beam 2 due to concentrated force, and ensure the safety and reliability of the lifting operation.

[0046] In summary, the cantilever bridge-building machine lifting equipment provided by the present invention is arranged on the truss 1 of the bridge-building machine compared with the prior art. The operator can directly observe and operate the lifting process on the bridge deck, with a clearer and wider field of vision, and can accurately determine the starting position and target position of the hoisted object, effectively avoiding the deviation of the lifting position caused by inconvenient observation, and greatly improving the accuracy and safety of the lifting. During the lifting process, the operator can accurately control the longitudinal position of the crossbeam 3 on the track beam 2 and the lateral position of the electric hoist 4 on the crossbeam 3, so as to realize the precise path planning and positioning of the hoisted object in the two-dimensional plane on the bridge deck. The self-locking property of the drive assembly enables the crossbeam 3 to remain fixed even if it is subject to external interference forces when it needs to be accurately placed at the target position during the lifting process, avoiding the risk of collision or falling of the hoisted object caused by accidental movement, further enhancing the safety and stability of the lifting process, and ensuring the safety of construction personnel and construction sites.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cantilever bridge-building machine hoisting device, arranged on a truss (1) of the bridge-building machine, characterized in that: include: Two track beams (2) are arranged in parallel on the truss (1) and are fixedly connected to the truss (1); A crossbeam (3) is arranged between the two track beams (2) and moves along the length direction of the track beams (2) through a driving assembly, the length direction of the crossbeam (3) being perpendicular to the length direction of the track beams (2); and An electric hoist (4) moves on the crossbeam (3) along the length direction of the crossbeam (3); There are two drive assemblies in number and they correspond one to one to the two track beams (2); the drive assemblies are self-locking, so that when the cross beam (3) stops on the track beam (2), the cross beam (3) is locked with the track beam (2).

2. A cantilever bridge-building machine hoisting equipment as claimed in claim 1, characterized in that: A fixing seat (51) is fixedly arranged on the driving assembly, and the upper end of the fixing seat (51) is open so that the cross beam (3) can be placed in the fixing seat (51) from top to bottom, and the inner peripheral wall of the fixing seat (51) abuts against the outer peripheral wall of the cross beam (3); A pressing plate (52) is provided on the fixing seat (51) along the width direction of the cross beam (3), the pressing plate (52) abuts against the upper surface of the cross beam (3), and two ends of the pressing plate (52) respectively penetrate the fixing seat (51) and extend outward to form an extension portion (521), and the extension portion (521) and the cross beam (3) are connected via a positioning member.

3. A cantilever bridge-building machine hoisting equipment as claimed in claim 2, characterized in that: The fixing seat (51) is provided with a guide hole (511) for the extension portion (521) to pass through, and the guide hole (511) extends along the length direction of the crossbeam (3) and is inclined downward. When the positioning member connects the extension portion (521) and the crossbeam (3), the extension portion (521) slides along the guide hole (511), and the pressing plate (52) moves in a direction close to the crossbeam (3) and presses against the upper surface of the crossbeam (3).

4. A cantilever bridge-building machine hoisting equipment as claimed in claim 3, characterized in that: A collar (522) is rotatably provided on a side of the extension portion (521) facing away from the pressing plate (52), and the positioning member is connected to the collar (522).

5. The cantilever bridge-building machine hoisting equipment according to claim 4, characterized in that: When the collar (522) is aligned with the guide hole (511), the collar (522) avoids the fixing seat (51) so that the collar (522) can pass through the guide hole (511); When the collar (522) and the guide hole (511) are misaligned, the collar (522) abuts against the fixing seat (51).

6. A cantilever bridge-building machine hoisting equipment as claimed in claim 4, characterized in that: The positioning member comprises: A positioning plate (61) fixedly disposed on an end of the crossbeam (3); A positioning rod (62), two ends of which respectively penetrate the collar (522) and the positioning plate (61); A positioning block (63) is fixedly arranged at one end of the positioning rod (62) and abuts against the positioning plate (61); A positioning nut (64) is threadedly connected to the other end of the positioning rod (62) and abuts against the collar (522).

7. The cantilever bridge-building machine hoisting equipment according to claim 1, characterized in that: A rack (21) is fixedly arranged on the track beam (2) along the length direction; the driving assembly comprises: A connecting seat (71) fixedly disposed on the crossbeam (3); A running wheel (72) rotatably disposed on the connecting seat (71) and rollably disposed on the track beam (2); A driving gear (73) is rotatably disposed on the connecting seat (71) and meshes with the rack (21).

8. The cantilever bridge-building machine hoisting equipment according to claim 7, characterized in that: The drive assembly also includes: a worm gear (74) rotatably disposed on the connecting seat (71) and coaxially fixed with the driving gear (73); a worm (75) rotatably disposed on the connecting seat (71) and meshing with the worm wheel (74), wherein the helix angle of the worm (75) is smaller than the equivalent friction angle; A driving motor (76) is fixedly disposed on the connecting seat (71), and an output end thereof is connected to the worm (75).

9. The cantilever bridge-building machine hoisting equipment according to claim 1, characterized in that: The crossbeam (3) comprises a plurality of crossbeam (3) units connected in sequence along the length direction, two adjacent crossbeam (3) units are connected via a connecting piece (8), and the connecting piece (8) and the crossbeam (3) unit are connected via bolts.

10. The cantilever bridge-building machine hoisting equipment according to claim 1, characterized in that: A diagonal brace (9) is fixedly arranged between the track beam (2) and the truss (1).

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