Adjustable longitudinal beam type self-propelled hanging basket vehicle and its construction method

Abstract

The present invention belongs to an adjustable longitudinal beam type self-propelled hanging basket vehicle and its construction method, which includes a crawler transporter, an adjustable longitudinal beam mechanism, a balance force distribution structure, a support mechanism, and a suspended hanging basket formwork system. The adjustable longitudinal beam mechanism and the balance force distribution structure are located on the crawler transporter, the support mechanism is located on the front edge of the formed box girder bridge surface, and the suspended hanging basket formwork system is located on the longitudinal beam at the front end of the support mechanism. The present invention reduces the weight of the traditional hanging basket by 60% and does not require on-site construction. The present invention can be constructed side by side with multiple units, eliminating the need for the traditional hanging basket to complete the construction of the box girder to be cast in one construction section by half-width assembly. It can complete the construction of the box girder to be cast in one construction section at one time, greatly improving the casting quality of the box girder to be cast.

Description

Technical Field

[0001] The present invention belongs to an adjustable longitudinal beam type self-propelled hanging basket vehicle and a construction method thereof. Background Art

[0002] In the field of bridge construction, the box girder of the upper main deck structure of a bridge is now mostly constructed by the traditional hanging basket cantilever casting method. The hanging basket is actually a mobile formwork system built on site. The traditional hanging basket structure includes a diamond bracket, a front sling of the hanging basket, a rear sling of the hanging basket, a counterweight anchoring structure, a forward movement system, and a hanging basket formwork, etc. Among them, the diamond bracket is the main structure of the hanging basket. The bottom longitudinal beam of the diamond bracket is placed on the formed box girder bridge deck, and the top longitudinal beam of the diamond bracket extends outward to the upper end of the box girder to be cast in the air and forms a suspended hanging basket formwork system for the box girder to be cast by connecting the front and rear slings of the hanging basket and the hanging basket formwork, etc.

[0003] At present, the hanging basket on the formed box girder bridge deck also needs to be moved forward as the cantilever casting box girder extends. The traditional hanging basket all adopts a track type forward movement system. That is, before each movement of the hanging basket, it is necessary to first lay the longitudinal movement track on the bridge deck in the walking direction of the hanging basket. Since the center of gravity of the hanging basket is in the front, the lower end of the longitudinal movement track needs to be arranged on a cushion seat, and both the cushion seat and the longitudinal movement track need to be anchored to the box girder of the bridge deck. Then, a winch, or a hydraulic push rod, or a chain block, etc. are used to drag the hanging basket forward. After the hanging basket moves forward, it is necessary to re-anchor the hanging basket and the longitudinal movement track. After the hanging basket walks in place, the previous set of cushion seats and longitudinal movement tracks are removed to prepare for the laying of the next set.

[0004] The traditional hanging basket is extremely heavy, the forward movement of the hanging basket takes a long time and has low efficiency, and it is necessary to repeatedly anchor the hanging basket and the longitudinal movement track many times, which causes damage to the overall structure of the bridge deck. At least dozens of people are required to cooperate during the walking process. The track laying process needs to be guided by surveying personnel, the procedures are cumbersome, the process is complex, time-consuming and laborious. At the same time, there is a risk of derailment and sliding during the forward movement.

[0005] For this reason, Chinese Patent No. 201910353449.7 discloses an adjustable longitudinal beam type self-propelled hanging basket vehicle and its construction method. Four crawler vehicles are respectively located at the lower parts of the two ends of the left and right bottom longitudinal beams of the diamond bracket. The lower parts of the two ends of the left and right bottom longitudinal beams are respectively fixedly connected to the middle part of the upper end of a longitudinal beam flange. A fixed disc seat is provided in the middle of the upper end of the crawler vehicle body. A rotating disc is axially provided on the upper part of the fixed disc seat. A disc connecting flange is fixedly connected to the upper end of the rotating disc. The lower end surface of the longitudinal beam flange is integrated with the upper end surface of the disc connecting flange through flange connecting bolts, gaskets and flange connecting nuts. The left and right bottom longitudinal beams located behind the rear crawler vehicle extend backward to form an extended part. A counterweight block is placed on the extended part, or a counterweight block is placed on the extended part and the extended part behind the counterweight block is fixed to the corresponding lower cast beam body through an anchor rod. The left and right bottom longitudinal beams are arranged side by side at an interval distance and are fixed into one body through several cross beams with connecting seats at both ends, or are connected into one body through a connecting plate and fastening bolts. That is, the overall structure of the hanging basket remains unchanged. Only four crawler vehicles are respectively located at the lower parts of the two ends of the left and right bottom longitudinal beams of the diamond bracket for moving the hanging basket; the left and right bottom longitudinal beams extend backward to form an extended part. A counterweight block is placed on the extended part, or a counterweight block is placed on the extended part and the extended part behind the counterweight block is fixed to the corresponding lower cast beam body through an anchor rod for fixing the hanging basket. Although it can solve the deficiency of the hanging basket moving forward and laying tracks, since the diamond bracket of the traditional hanging basket is a fixed structure and weighs more than 50T, the common span is only 4m. The diamond bracket cannot adjust the distance of the top longitudinal beam extending into the air at the upper end of the to-be-cast box girder according to the length change of the to-be-cast box girder body, and the hanging basket is still fixed to the corresponding lower cast beam body through an anchor rod. This patent not only still fails to completely solve the deficiencies existing in the traditional hanging basket, but also has the deficiencies of slow erection speed, many crawler vehicles consumed and inconvenient movement and transfer. Summary of the Invention

[0006] The object of the present invention is to design an adjustable longitudinal beam type self-propelled hanging basket vehicle and its construction method, which can solve the deficiencies of inconvenient movement and transfer, slow erection speed, non-adjustable diamond bracket and fixed anchoring system of the current hanging basket.

[0007] For this reason, an adjustable longitudinal beam type self-propelled hanging basket vehicle of the present invention includes a crawler transporter, and further includes an adjustable longitudinal beam mechanism, a balance force dividing structure, a support mechanism and a suspended hanging basket formwork system. The adjustable longitudinal beam mechanism and the balance force dividing structure are located on the crawler transporter. The support mechanism is located on the front edge of the formed box girder bridge surface. The suspended hanging basket formwork system is located on the longitudinal beam in front of the support mechanism, wherein:

[0008] The crawler transporter is used for autonomously operating the hanging basket and also as a transporter. The left and right side edges of the carriage board of the crawler transporter extend to the outer sides of the left and right running crawlers. An adjustable longitudinal beam mechanism is provided at the lower parts of the extended left and right side edges of the carriage board. A longitudinal beam is provided on the adjustable longitudinal beam mechanism. A balance force dividing structure is provided on the carriage board of the crawler transporter, and a counterweight is provided at the rear part of the carriage board;

[0009] The adjustable longitudinal beam mechanism is used to adjust the distance that the longitudinal beam extends to the air above the upper end of the box girder to be cast. The adjustable longitudinal beam mechanism is composed of a guide rail cylinder, a second motor, a reducer, a sprocket, a chain, a driving roller, a bearing pair, a driven roller and a locking device. The upper ends of the two guide rail cylinders are respectively fixed at the lower parts of the extended left and right side edges of the carriage board. The length of the guide rail cylinder is equal to or greater than the length of the carriage board. The two longitudinal beams are respectively slidably fitted in the guide rail cylinders. A number of opening grooves are provided at intervals on the lower end surface of the guide rail cylinder. Bearing pairs are provided at the lower ends of the side walls of the guide rail cylinder on both sides of the opening grooves. A number of driving rollers and driven rollers are axially arranged at intervals in each opening groove. The two side roller shafts of the driven roller are arranged on the corresponding bearing pairs. The two side roller shafts of the driving roller are arranged on the corresponding bearing pairs and the roller shafts on the same side extend to the outside of the corresponding bearing pairs. Sprockets are provided on the roller shafts extending to the outside of the corresponding bearing pairs. An annular chain drives the sprockets to rotate synchronously. A second motor is provided on the vehicle body at the upper end of the guide rail cylinder. The second motor drives the chain to run through the reducer. The lower end of the longitudinal beam located in the guide rail cylinder is located on the upper roller surfaces of each driving and driven roller. A locking device is provided in the middle of the outer side wall of the guide rail cylinder;

[0010] The balance force dividing structure is used to balance and divide the load of the two longitudinal beams. The balance force dividing structure is a portal strut frame provided in the middle of the carriage board of the crawler transporter. The lower ends of the two struts of the portal strut frame are respectively fixed on the middle part of the carriage board corresponding to the upper ends of the longitudinal beams. Steering pulleys are provided at the tops of the two struts. A winch seat is provided on the carriage board behind the two struts. A winch shaft is arranged on the winch seat. The first motor drives the winch to rotate through the reducer. One end of the steel wire rope is fixed on the winch, and the other end of the steel wire rope bypasses the steering pulley and is connected to the front end of the longitudinal beam;

[0011] The support mechanism is used to form a fulcrum for supporting the longitudinal beam at the front end of the formed box girder bridge. The cross section of the support is trapezoidal. The longitudinal beam is clamped or passes through the groove or through hole at the upper end of the support. A locking device is provided on one outer side wall of the groove or through hole.

[0012] As a further description of the above technical solution: The upper roller surfaces of the driving roller and the driven roller are on the same plane and higher than the lower end surface inside the guide rail cylinder.

[0013] As a further description of the above technical solution: One end of the locking device is a brake seat provided with a brake groove, and a through hole is provided on an outer side wall of the guide rail cylinder or the support corresponding to the brake groove. The brake seat at the brake groove end is fixed on an outer side wall of the guide rail cylinder or the support around the through hole. A brake plate is slidably fitted in the brake groove. A brake pad is provided on the brake plate surface near the through hole end, and a ball bowl is provided in the middle of the other end surface of the brake plate. One end of the screw rod is a ball head axially connected to the ball bowl and axially connected to the ball bowl. The other end of the screw rod is screwed into a screw hole of the corresponding brake seat and is located outside the brake seat, and a handle plate is provided thereon. A locking nut is screwed on the screw rod between the handle plate and the brake seat, and a locking rod is provided on the outer peripheral wall of the locking nut.

[0014] As a further description of the above technical solution: The suspended hanging basket formwork system is composed of suspension rods, bottom longitudinal beams, bottom cross beams, connecting cross beams, bottom formwork, side formwork and intermediate formwork. The upper ends of several suspension rods are screwed on the longitudinal beam in the air at the upper end of the box girder to be cast. The bottom longitudinal beam is screwed on the lower ends of the respective suspension rods, and the end of the bottom longitudinal beam near the formed box girder end is fixed or abutted against the corresponding position of the formed box girder end.

[0015] As a further description of the above technical solution: The balance force dividing structure is a portal strut frame provided in the middle of the carriage plate of the crawler transporter. The lower ends of the two struts of the portal strut frame are respectively fixed on the middle of the carriage plate at the upper end of the corresponding longitudinal beam. Connecting ears are respectively provided on both sides of the top ends of the two struts. The front part of the longitudinal beam is connected to the top end of the strut frame through a front pull rod, and the corresponding rear end of the vehicle body is connected to the corresponding side top end of the strut frame through a rear pull rod.

[0016] As a further description of the above technical solution: A fastening frame is provided between the two longitudinal beams in front of the crawler transporter, and a fastening connection frame is provided between the adjacent two longitudinal beams in front of the adjacent two crawler transporters.

[0017] An implementation method of an adjustable longitudinal beam type self-propelled hanging basket vehicle includes the following steps:

[0018] (1) The crawler transporter and the support mechanism are manufactured by the crawler vehicle manufacturer. The crawler transporter is a heavy and widened vehicle body. The width of the vehicle body frame is at least 3 m, and the width of the carriage plate is at least 4 m. The carriage plate is made of thick steel and is fixed to the vehicle body frame. The left and right side edges of the carriage plate of the crawler transporter extend to the outside of the left and right outer sides of the running crawlers. Adjustable longitudinal beam mechanisms are provided at the lower parts of the extended left and right side edges of the carriage plate. Longitudinal beams are provided on the adjustable longitudinal beam mechanisms. A balance force dividing structure is provided on the carriage plate of the crawler transporter, and a counterweight block is provided on the rear part of the carriage plate;

[0019] Prepare the suspension rods, bottom longitudinal beams, bottom cross beams, connecting cross beams, bottom formwork, side formwork and intermediate formwork; prepare the fastening frame and the fastening connection frame; the longitudinal beams and the adjustable longitudinal beam mechanisms are stored and transported separately.

[0020] (2)According to the width of the box girder to be cast of the bridge deck structure, adjustable longitudinal girder self-propelled hanging basket vehicles are equipped. One adjustable longitudinal girder self-propelled hanging basket vehicle can complete the construction of the box girder to be cast with a width equal to or less than 8m and a length of 4.5 - 7m. If the width of the box girder to be cast is equal to or less than 16m, two adjustable longitudinal girder self-propelled hanging basket vehicles are equipped; and so on;

[0021] (3)When the width of the box girder to be cast is equal to or less than 8m, run one adjustable longitudinal girder self-propelled hanging basket vehicle to the middle of the formed box girder construction bridge deck at the rear end of the box girder to be cast. The front of the self-propelled hanging basket vehicle faces the box girder to be cast. The longitudinal central axis of the adjustable longitudinal girder self-propelled hanging basket vehicle coincides with the longitudinal central axis of the middle of the box girder to be cast. Place the two supports respectively on the front edge of the formed box girder bridge deck at the front end of the longitudinal girder. The longitudinal central axis of each longitudinal girder coincides with the longitudinal central axis of the groove or through hole of the corresponding support or is in the same plane;

[0022] If the width of the box girder to be cast is equal to or less than 16m, two adjustable longitudinal girder self-propelled hanging basket vehicles are placed side by side horizontally and are 4m apart;

[0023] (4)Place the two longitudinal girders into the two guide rail cylinders in the adjustable longitudinal girder mechanism from one end respectively. Run the adjustable longitudinal girder mechanism so that the front part of the longitudinal girder is located in the groove or through hole of the support and then is suspended in the upper space of the box girder to be cast, forming a suspended part longitudinal girder. The longitudinal girder located in the support forms a fulcrum part longitudinal girder, and the longitudinal girder at the rear end of the support forms a power arm longitudinal girder; with the length of the suspended part longitudinal girder determined, extending the length of the power arm longitudinal girder and placing the vehicle body at the rear end of the longitudinal girder are safety guarantees for supporting the suspended part longitudinal girder; after the two longitudinal girders are in place, stop the operation of the adjustable longitudinal girder mechanism, brake the vehicle body, and fix the longitudinal girders in the support and the guide rail cylinder through the locking device;

[0024] (5)Set a balance force distribution structure on the two longitudinal girders and the vehicle body: Fix one end of each of the two steel wires on the corresponding winches respectively. The other end of each steel wire bypasses the steering pulley at the top of the corresponding side support frame and is connected to the upper connecting ear at the front end of the corresponding side longitudinal girder. Start the two first motors. The two first motors drive the corresponding winches to rotate through the speed reducers respectively to tighten the steel wires. After each steel wire bears force, turn off the two first motors and brake the winches on the winch seats;

[0025] Or, connecting ears are respectively provided on both sides of the top of the two supports. The upper connecting ear on the front end of the longitudinal girder is connected to the connecting ear at the top of the support frame through the front pull rod, and the corresponding rear end of the vehicle body is connected to the connecting ear at the top of the corresponding side of the support frame through the rear pull rod, so that each front and rear pull rod bears force;

[0026] (6)Connect the side walls between the two longitudinal girders at the front end of the same vehicle body with a fastening frame; connect the side walls between the two adjacent longitudinal girders at the front ends of the two vehicle bodies with an interconnected fastening frame; to maintain the stability of the longitudinal girders;

[0027] (7) Install the suspended basket formwork system on the longitudinal beam of the suspension part; complete the construction and curing of the box girder to be cast in this section, and remove the formwork and the suspended basket formwork system after the constructed box girder to be cast reaches the required strength;

[0028] (8) The forward movement of the self-propelled basket vehicle with adjustable longitudinal beams, when the longitudinal beams in the supports and guide tubes are fixed by the locking device, the vehicle body is started to move forward or the two vehicles move forward synchronously and drive the longitudinal beams and supports to move forward on the completed bridge body until they reach the designated construction position of the next section;

[0029] After adjusting the position of the forward moving vehicle body or each vehicle body according to step (3), the vehicle body or each vehicle body is locked, and the installation of the suspended hanging basket formwork system and the construction of the box girder to be cast in this section are completed according to step (7);

[0030] (9) Repeat steps (7) to (8) in sequence until the bridge body construction is completed, and then remove the longitudinal beam. The adjustable longitudinal beam self-propelled basket vehicle can be transferred to the construction site, or the longitudinal beam, gate-shaped support frame, winch seat, first motor reducer and counterweight block can be unloaded from the crawler transport vehicle and used as a transport vehicle or tractor.

[0031] As a further description of the above technical solution: the ratio of the length of the power arm longitudinal beam to the length of the suspension part longitudinal beam is at least 2 to 3:1.

[0032] As a further description of the above technical solution: if the width of the box beam to be poured is equal to or less than 16m, the two adjustable longitudinal beam self-propelled basket trucks are placed side by side horizontally and 4m apart. When the width of the box beam to be poured is equal to 16m, the two adjustable longitudinal beam self-propelled basket trucks are placed side by side horizontally and 4m apart. When the width of the pouring box beam is less than 16m, the two adjustable longitudinal beam self-propelled basket trucks are placed side by side horizontally and the length between them is reduced accordingly.

[0033] As a further description of the above technical solution: the fastening frame and the interconnected fastening frame are X-shaped frames, made of I-beams, and a butt flange is provided at the butt end between the fastening frame and the longitudinal beam.

[0034] The present invention has the following beneficial effects:

[0035] 1. The present invention adopts a crawler transporter, an adjustable longitudinal beam mechanism, a balanced force division structure, a support mechanism, and a suspended hanging basket formwork system. After the front parts of the two longitudinal beams are located in the grooves or through holes of the supports and are suspended in the upper space of the box girder to be cast, a suspended part longitudinal beam is formed. The longitudinal beam located inside the support forms a fulcrum part longitudinal beam, and the longitudinal beam at the rear end of the support forms a power arm longitudinal beam. When the length of the suspended part longitudinal beam is determined, extending the length of the power arm longitudinal beam and placing the vehicle body at the rear end of the longitudinal beam is a lever principle structure to ensure the safety of the suspended part longitudinal beam. At the same time, in cooperation with the lever principle structure of the balanced force division structure, the two longitudinal beams can move in balance and effectively bear the weight of the suspended hanging basket formwork system and the box girder to be cast. Practice has proved that one adjustable longitudinal beam self-propelled hanging basket vehicle of the present invention can complete the construction of a box girder to be cast with a width equal to or less than 8m and a length of 4.5 - 7m, which is far greater than the load-bearing capacity of a traditional hanging basket and the length and width indexes of the box girder to be cast. Moreover, it is not limited by the width of the box girder to be cast.

[0036] 2. The present invention simplifies the construction process of the hanging basket movement, improves the construction efficiency. Since the present invention is self-propelled forward, the moving construction time is shortened by 96%, and the construction efficiency is high. The present invention eliminates the drawback that the traditional hanging basket needs to be repeatedly anchored and longitudinally moved the track many times, which causes damage to the overall structure of the bridge deck. Only 3 people are required to cooperate during the walking process, and there is no risk of derailment or sliding during the forward movement.

[0037] 3. The present invention reduces the weight of the traditional hanging basket by 60% and does not need to be built on site. The present invention can be constructed side by side with multiple units, and there is no need for the traditional hanging basket to complete the construction of the box girder to be cast in one construction section by half-width assembly. The present invention can complete the construction of the box girder to be cast in one construction section at a time, greatly improving the casting quality of the box girder to be cast. The invention can shorten the construction period by 30 - 40% compared with the traditional hanging basket, reduce the construction cost by 30 - 35%, save labor and effort, and improve the construction efficiency.

[0038] 4. The present invention is convenient and fast for mobile transfer. When the crawler vehicle of the present invention is not used for the hanging basket, it can be separated from the related components of the hanging basket and used as a towing or transportation tool.

[0039] 5. The present invention ensures the construction efficiency, improves the construction safety and stability, realizes the standardization, industrialization, and rapidization of the hanging basket construction, and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 is a schematic structural diagram of the construction state of the present invention;

[0041] Figure 2 is Figure 1 the top view structural diagram of

[0042] Figure 3Schematic diagram of the widened construction state of two adjustable longitudinal beam type self-propelled hanging basket vehicles;

[0043] Figure 4 Schematic diagram of the adjustable longitudinal beam mechanism of the present invention;

[0044] Figure 5 is Figure 4 Schematic diagram of the A-A cross-section structure in

[0045] Figure 6 Schematic diagram of the support mechanism of the present invention;

[0046] Figure 7 Schematic diagram of another support mechanism of the present invention;

[0047] Figure 8 Schematic diagram of another balance force sharing structure of the present invention. Detailed implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. In order to make the technical means, creative features, achieved purposes, and functions of the present invention easy to understand, the present invention will be further elaborated below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present invention, not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all belong to the protection scope of the present invention. The methods in the following embodiments, unless otherwise specified, are all conventional methods. The materials, devices, equipment, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0049] Embodiment 1: As shown in Figure 1 , Figure 2 , Figures 4 to 6 , an implementation method of an adjustable longitudinal beam type self-propelled hanging basket vehicle includes the following steps:

[0050] (1) An adjustable longitudinal beam type self-propelled hanging basket vehicle includes a crawler transporter 1, an adjustable longitudinal beam mechanism, a balance force sharing structure, a support mechanism, and a suspended hanging basket formwork system. The adjustable longitudinal beam mechanism and the balance force sharing structure are located on the crawler transporter. The support mechanism is located on the front edge of the formed box girder bridge. The suspended hanging basket formwork system is located on the longitudinal beam at the front end of the support mechanism, where:

[0051] The crawler transporter 1 is used to independently operate the hanging basket and as a transporter. The left and right side edges of the carriage plate 3 of the crawler transporter extend outside the left and right outer edges of the running crawlers. The lower parts of the extended left and right side edges of the carriage plate are provided with an adjustable longitudinal beam mechanism. A longitudinal beam 6 is provided on the adjustable longitudinal beam mechanism. A balance force sharing structure is provided on the carriage plate of the crawler transporter, and a counterweight 9 is provided on the rear part of the carriage plate.

[0052] The crawler transporter 1 and the support mechanism 19 are manufactured by a crawler vehicle factory. The crawler transporter has a weighted and widened vehicle body. The width of the vehicle body frame is at least 3 m, the length of the vehicle body is at least 6 m, and the width of the carriage plate 3 is at least 4 m. The crawler running system, the engine system 15, the operating system, the power generation and circuit system 15, the cab 31, etc. of the crawler transporter are all traditional structures, which can be designed and completed by those skilled in the art according to requirements and relying on their own knowledge, so they will not be elaborated here.

[0053] The carriage plate 3 is made of thick steel and fixed to the vehicle body frame. The left and right sides of the carriage plate of the crawler transporter extend to the outside of the left and right outer sides of the running crawlers. Adjustable longitudinal beam mechanisms are provided at the lower parts of the extended left and right sides of the carriage plate. Longitudinal beams 6 are provided on the adjustable longitudinal beam mechanisms. The longitudinal beams are made of rectangular reinforced steel, with a cross-sectional height of at least 45 cm, a width of at least 25 cm, and a wall thickness of at least 3 cm to ensure sufficient load-bearing capacity for the suspended hanging basket formwork system.

[0054] The adjustable longitudinal beam mechanism is used to adjust the distance that the longitudinal beam extends into the air above the upper end of the box girder to be cast. The adjustable longitudinal beam mechanism consists of guide rail cylinders 2, a second motor 181, a reducer 20, sprockets 25, a chain 26, a driving roller 21, a bearing pair 24, a driven roller 23, and a locking device 4. The upper ends of the two guide rail cylinders are respectively fixed to the lower parts of the extended left and right sides of the carriage plate and can be fixed by connecting flanges and bolts. The length of the guide rail cylinder 2 is equal to or greater than the length of the carriage plate. The guide rail cylinder is made of a high-strength rectangular steel cylinder. The two longitudinal beams 6 are respectively slidably fitted in the guide rail cylinders. A number of open slots are provided at intervals on the lower end surface of the guide rail cylinder. Bearing pairs 24 are provided on the lower side walls of the guide rail cylinder at both ends of each open slot. A number of driving rollers and driven rollers are axially arranged at intervals in each open slot. The two side roller shafts 22 of the driven roller 23 are arranged on the corresponding bearing pairs, so that the driven roller can rotate on the bearing pairs. The driven roller 23 and the driving roller 21 are arranged at intervals.

[0055] The two side roller shafts 22 of the driving roller 21 are arranged on the corresponding bearing pairs and the roller shafts 22 on the same side extend to the outside of the corresponding bearing pairs. Sprockets 25 are respectively provided on the roller shafts 22 extending to the outside of the corresponding bearing pairs. The annular chain 26 drives the sprockets 25 to rotate synchronously. A second motor 181 is provided on the vehicle body at the upper end of the guide rail cylinder 2. The second motor 181 drives the chain 26 to run through the reducer 20. For example, the motor shaft of the second motor drives the input end of the reducer 20 through a coupling 27, and a driving sprocket is provided at the output end of the reducer 20, and the driving sprocket meshes with the chain.

[0056] The upper roller surfaces of the driving roller and the driven roller are on the same plane and are higher than the lower end surface inside the guide rail cylinder. The lower end of the longitudinal beam 6 located inside the guide rail cylinder 2 is on the upper roller surfaces of the driving and driven rollers. When the second motor 181 drives the chain 26 to run through the reducer 20, the annular chain 26 also drives each sprocket 25 to rotate synchronously, causing each driving roller 21 to rotate synchronously, enabling the longitudinal beam 6 to move back and forth along the guide rail cylinder. A locking device 4 is provided in the middle of the outer side wall of the guide rail cylinder for locking the longitudinal beam when necessary.

[0057] A balance force structure for balancing the load-bearing of the two longitudinal beams. The balance force structure is a portal strut frame provided in the middle of the carriage plate 3 of the crawler transporter. The lower ends of the two struts 8 of the portal strut frame are respectively fixed to the middle of the upper end surface of the corresponding carriage plate at the upper end of the longitudinal beam 6 through flanges and bolts. Steering pulleys 81 are provided at the tops of the two struts 8, and a strut cross beam 82 is fixed between the upper ends of the two struts. A winch seat 16 is provided on the carriage plate 3 behind the two struts. The winch 10 is axially arranged on the winch seat. The first motor 18 drives the winch 10 to rotate through a reducer. One end of the steel wire rope 7 is fixed to the winch, and the other end of the steel wire rope 7 bypasses the steering pulley 81 and is connected to the upper connecting ear 61 at the front end of the longitudinal beam 6.

[0058] A support mechanism for forming a fulcrum to support the longitudinal beam 6 at the front end of the formed box girder bridge. The cross-sections of the two supports 19 are trapezoidal. The length of each support 19 is 1 m and is made of cast iron or steel. The longitudinal beam passes through the through hole 191 at the upper end of the support, and a locking device 4 is provided on the outer side wall of one side of the through hole.

[0059] The locking device 4 has a brake groove 410 at one end of the brake seat 44. A through hole is provided on the outer side wall of the guide rail cylinder 2 or the support corresponding to the brake groove. The brake seat at the end of the brake groove is fixed to the outer side wall of the guide rail cylinder or the support around the through hole. A brake plate 43 is slidably fitted in the brake groove. The brake plate is a steel plate and can pass through the through hole. A brake pad 42 is provided on the brake plate surface near the through hole end. A ball bowl 40 is provided in the middle of the other end surface of the brake plate 43. One end of the screw 46 is a ball head 48 axially connected to the ball bowl 40 and axially connected to the ball bowl. The other end of the screw 46 is threadedly connected to the screw hole 49 of the corresponding brake seat and is located outside the brake seat, and a handle plate 41 is provided thereon. A locking nut 47 is threadedly provided on the screw 46 between the handle plate 41 and the brake seat 44, and a locking rod 45 is provided on the outer peripheral wall of the locking nut 47.

[0060] When it is necessary to stop the longitudinal beam 6 in the guide rail cylinder and the support, rotate the handle plate 41 to drive the screw 46 to move along the screw hole 49 of the brake seat towards the corresponding side wall of the longitudinal beam 6 in the guide rail cylinder and the support. At the same time, the screw drives the brake plate and the brake pad to move in the same direction through the ball head supporting the ball bowl. When the brake pad presses against the corresponding side wall of the longitudinal beam 6, the longitudinal beam in the guide rail cylinder and the support is stopped. Then rotate the locking rod to make the locking nut 47 close to the brake seat to lock the locking rod; conversely, release the stop of the longitudinal beam in the guide rail cylinder and the support.

[0061] The suspended hanging basket formwork system is composed of suspender rods 5, bottom longitudinal beams 65, bottom cross beams 63, connecting cross beams 64, bottom formwork 62, side formwork and intermediate formwork. The upper ends of several suspender rods are screwed to the longitudinal beam in the air at the upper end of the box girder 12 to be cast. The bottom longitudinal beam 65 is screwed to the lower ends of the respective suspender rods. The end of the bottom longitudinal beam 65 near the end of the formed box girder is fixed or abutted against the corresponding position of the end of the formed box girder 11. For example, embedded parts are provided at the corresponding end of the formed box girder, and the embedded parts are fixed at the corresponding position near the end of the formed box girder and the end of the formed box girder to increase the stability of the suspended hanging basket.

[0062] A balance force dividing structure is provided on the carriage plate of the crawler transporter, and a counterweight 9 is provided on the rear part of the carriage plate;

[0063] Prepare suspender rods, bottom longitudinal beams, bottom cross beams, connecting cross beams, bottom formwork, side formwork and intermediate formwork; prepare fastening frames and fastening connecting frames; store and transport the longitudinal beam and the adjustable longitudinal beam mechanism separately.

[0064] (2) Drive the crawler transporter to the construction bridge deck of the formed box girder 11. According to the width of the box girder 12 to be cast on the bridge deck structure, equip an adjustable longitudinal beam type self-propelled hanging basket vehicle. One adjustable longitudinal beam type self-propelled hanging basket vehicle can complete the construction of the box girder to be cast with a width equal to or less than 8 m and a length of 3.5 - 7 m. If the width of the box girder to be cast is equal to or less than 16 m, then equip two adjustable longitudinal beam type self-propelled hanging basket vehicles 1; and so on.

[0065] (3) When the width of the box girder 12 to be cast is equal to or less than 8 m, run one adjustable longitudinal beam type self-propelled hanging basket vehicle to the middle of the construction bridge deck of the formed box girder 11 at the rear end of the box girder to be cast. The front of the self-propelled hanging basket vehicle faces the box girder to be cast. The longitudinal central axis of the adjustable longitudinal beam type self-propelled hanging basket vehicle coincides with the longitudinal central axis of the middle of the box girder 12 to be cast. Place the two supports on the front edge of the bridge deck of the formed box girder 11 at the front end of the longitudinal beam respectively. The longitudinal central axis of each longitudinal beam coincides with the longitudinal central axis of the groove or through hole 191 of the corresponding support or is in the same plane;

[0066] If the width of the box girder to be cast is equal to or less than 16 m, that is, in the range of 9 - 16 m, then the two adjustable longitudinal beam type self-propelled hanging basket vehicles are placed side by side horizontally and are 4 m apart. That is, when the width of the box girder to be cast is 16 m, the two adjustable longitudinal beam type self-propelled hanging basket vehicles are placed side by side horizontally and are 4 m apart; when the width of the box girder to be cast is less than 16 m, the two adjustable longitudinal beam type self-propelled hanging basket vehicles are placed side by side horizontally and the distance between them is correspondingly reduced.

[0067] (4) Place the two longitudinal beams 6 into the two guide rail cylinders 2 in the adjustable longitudinal beam mechanism from one end respectively. Run the adjustable longitudinal beam mechanism so that the front part of the longitudinal beam 6 is located in the groove or through hole 191 of the support 19 and then is suspended in the upper space of the box girder 12 to be cast, forming a suspended part longitudinal beam. The longitudinal beam located in the support forms a fulcrum part longitudinal beam, and the longitudinal beam at the rear end of the support forms a power arm longitudinal beam;

[0068] The length ratio of the power arm longitudinal beam to the suspension part longitudinal beam is at least 2 - 3:1;

[0069] When the length of the suspension part longitudinal beam is determined, extending the length of the power arm longitudinal beam and placing the vehicle body behind the rear end of the longitudinal beam are safety guarantees for supporting the suspension part longitudinal beam; after the two longitudinal beams are in place, stop the operation of the adjustable longitudinal beam mechanism, brake the vehicle body, and fix the longitudinal beams in the support and the guide rail cylinder through the locking device 4.

[0070] (5) Install a balance force structure on the two longitudinal beams and the vehicle body: Fix one end of each of the two steel wire ropes 7 to the corresponding winch 10 respectively, and the other end of each steel wire rope bypasses the steering pulley 81 at the top of the corresponding side strut bracket and is connected to the upper connecting ear 61 at the front end of the corresponding side longitudinal beam. Start the two first motors 18, and the two first motors drive the respective winches to rotate through the speed reducers to tighten the steel wire ropes. After each steel wire rope bears force, turn off the two first motors and brake the winches on the winch seats.

[0071] (6) Connect the side walls between the two longitudinal beams at the front end of the vehicle body with the fastening frame 14; the fastening frame is an X-shaped frame made of I-beam. The docking end of the fastening frame and the longitudinal beam is provided with a docking flange 13, and connect the side walls between the two adjacent longitudinal beams at the front end of the two vehicle bodies with the interconnected fastening frame 141; to maintain the stability of the longitudinal beam.

[0072] (7) Install the suspended hanging basket formwork system on the suspension part longitudinal beam, which is the traditional installation method; complete the pouring construction of the box girder to be poured in this section, cure it. After the box girder 12 to be poured reaches the required strength, remove the formwork and the suspended hanging basket formwork system.

[0073] (8) Forward movement of the adjustable longitudinal beam type self-propelled hanging basket vehicle. Under the state of fixing the longitudinal beams in the support and the guide rail cylinder through the locking device, start the vehicle body to move forward or the vehicle bodies move forward synchronously and drive the longitudinal beams and the supports to move forward on the completed bridge body until reaching the designated construction position of the next section; to facilitate the movement of the supports, skateboards or rollers can be placed under each support.

[0074] After adjusting the position of the forward moving vehicle body or the vehicle bodies according to step (3), lock the vehicle body or the vehicle bodies, and complete the installation of the suspended hanging basket formwork system and the pouring construction of the box girder to be poured in this section according to step (7);

[0075] (9) Repeat steps (7) to (8) in sequence until the pouring construction of the bridge body is completed. Then remove the longitudinal beams, the suspended hanging basket formwork system and the fastening frame. The adjustable longitudinal beam type self-propelled hanging basket vehicle can be transferred to other construction sites, or after removing the longitudinal beams, the portal strut brackets, the winch seats, the first motor speed reducers and the counterweights from the crawler transporter, it can be used as a transport vehicle or a tractor.

[0076] Embodiment 2: As Figure 3 、 Figures 7 to 8As shown, the difference from Embodiment 1 is as follows:

[0077] When the width of the box girder to be poured is equal to 16 m, two adjustable longitudinal girder self-propelled hanging basket vehicles are placed side by side horizontally with a distance of 4 m between them, that is, the second adjustable longitudinal girder self-propelled hanging basket vehicle 17 is placed side by side horizontally with the adjustable longitudinal girder self-propelled hanging basket vehicle 1 with a distance of 4 m between the two vehicles. The side walls between the front ends of the two longitudinal girders of the same vehicle body are connected by a fastening frame 14; the side walls between the adjacent two longitudinal girders at the front ends of the two vehicle bodies are connected by an interconnected fastening frame 141; to maintain the stability of the longitudinal girders of the two vehicles.

[0078] The balance force dividing structure can be a portal strut frame provided in the middle of the carriage plate of the crawler transporter. The lower ends of the two struts of the portal strut frame are respectively fixed on the middle of the carriage plate at the upper ends of the corresponding longitudinal girders. Connecting ears are respectively provided on both sides of the top ends of the two struts. The front part of the longitudinal girder is connected to the front connecting ear at the top end of the strut frame through a front pull rod 71, and the corresponding rear end of the vehicle body is connected to the connecting ear at the corresponding side top end of the strut frame through a rear pull rod 72, so that each front and rear pull rod bears force.

[0079] The support mechanism is used to form a fulcrum for supporting the longitudinal girder 6 at the front end of the formed box girder bridge. The cross sections of the two supports 19 are trapezoidal. The length of each support 19 is 1 m and is made of cast iron or steel. The longitudinal girder is clamped in the groove 191 at the upper end of the support. A locking device 4 is provided on the outer wall of one side of the groove, and the groove is more convenient for placing the longitudinal girder.

[0080] When installing the suspended hanging basket formwork system on the longitudinal girders of each suspension part of the two adjustable longitudinal girder self-propelled hanging basket vehicles, a connecting cross beam 64 should be first provided between the adjacent bottom longitudinal girders 65 of the two adjacent adjustable longitudinal girder self-propelled hanging basket vehicles, so that the suspended hanging basket formwork systems of the two adjustable longitudinal girder self-propelled hanging basket vehicles become an integral structure, and the side walls between the adjacent two longitudinal girders at the front ends of the two vehicle bodies are connected by an interconnected fastening frame 141 to maintain the stability of the suspended hanging basket formwork system.

[0081] The rest is the same as that of Embodiment 1, so it will not be repeated here.

[0082] The above-mentioned is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An adjustable longitudinal beam type self-propelled hanging basket vehicle, comprising a crawler transporter, Characterized in that: It further includes an adjustable longitudinal beam mechanism, a balance force dividing structure, a support mechanism and a suspended hanging basket formwork system. The adjustable longitudinal beam mechanism and the balance force dividing structure are located on the crawler transporter, the support mechanism is located on the front edge of the formed box girder bridge surface, and the suspended hanging basket formwork system is located on the longitudinal beam at the front end of the support mechanism. Among them: The crawler transporter is used to independently operate the hanging basket and as a transporter. The left and right side edges of the carriage plate of the crawler transporter extend to the left and right outer sides of the running crawlers. The lower parts of the extended left and right side edges of the carriage plate are provided with an adjustable longitudinal beam mechanism. A longitudinal beam is provided on the adjustable longitudinal beam mechanism. A balance force dividing structure is provided on the carriage plate of the crawler transporter, and a counterweight block is provided on the rear part of the carriage plate; The adjustable longitudinal beam mechanism is used to adjust the distance that the longitudinal beam extends into the air above the upper end of the box girder to be poured. The adjustable longitudinal beam mechanism is composed of a guide rail cylinder, a second motor, a reducer, a sprocket, a chain, a driving roller, a bearing pair, a driven roller and a locking device. The upper ends of the two guide rail cylinders are respectively fixed to the lower parts of the extended left and right side edges of the carriage plate. The length of the guide rail cylinder is equal to or greater than the length of the carriage plate. The two longitudinal beams are respectively slidably fitted in the guide rail cylinders. A plurality of opening grooves are provided at intervals on the lower end surface of the guide rail cylinder. Bearing pairs are provided at the lower ends of the side walls of the guide rail cylinder on both sides of the opening grooves. A plurality of driving rollers and driven rollers are axially arranged at intervals in each opening groove. The two roller shafts of the driven roller are arranged on the corresponding bearing pairs, and the two roller shafts of the driving roller are arranged on the corresponding bearing pairs and the roller shafts on the same side extend to the outside of the corresponding bearing pairs. Sprockets are provided on the roller shafts extending to the outside of the corresponding bearing pairs. An endless chain drives the sprockets to rotate synchronously. A second motor is provided on the vehicle body at the upper end of the guide rail cylinder. The second motor drives the chain to run through the reducer. The lower end of the longitudinal beam located in the guide rail cylinder is located on the upper roller surfaces of each driving and driven roller. A locking device is provided in the middle of the outer side wall of the guide rail cylinder; The balance force dividing structure is used to balance and divide the load of the two longitudinal beams. The balance force dividing structure is a portal strut frame provided in the middle of the carriage plate of the crawler transporter. The lower ends of the two struts of the portal strut frame are respectively fixed to the middle of the carriage plate corresponding to the upper ends of the longitudinal beams. Steering pulleys are provided at the tops of the two struts. A winch seat is provided on the carriage plate behind the two struts. A winch shaft is arranged on the winch seat. The first motor drives the winch to rotate through the reducer. One end of a steel wire rope is fixed to the winch, and the other end of the steel wire rope bypasses the steering pulley and is connected to the front end of the longitudinal beam; The support mechanism is used to form a fulcrum for supporting the longitudinal beam at the front end of the formed box girder bridge surface. The cross section of the support is trapezoidal. The longitudinal beam is clamped or passes through the groove or through hole at the upper end of the support. A locking device is provided on one outer side wall of the groove or through hole.

2. The adjustable longitudinal beam type self-propelled hanging basket vehicle according to claim 1, Characterized in that: The upper roller surfaces of the driving roller and the driven roller are on the same plane and higher than the lower end surface inside the guide rail cylinder.

3. The adjustable longitudinal beam type self-propelled hanging basket vehicle according to claim 1, Characterized in that: The locking device described above has a brake groove at one end of the brake seat. A through hole is provided on an outer side wall of the guide rail cylinder or the support corresponding to the brake groove. The brake seat at the brake groove end is fixed on an outer side wall of the guide rail cylinder or the support around the through hole. A brake plate is slidably fitted in the brake groove. A brake pad is provided on the brake plate surface near the through hole end. A ball bowl is provided in the middle of the other end surface of the brake plate. One end of the screw rod is a ball head axially connected to the ball bowl and axially connected to the ball bowl. The other end of the screw rod is screwed into the screw hole of the corresponding brake seat and is located outside the brake seat, and a handle plate is provided thereon. A locking nut is screwed on the screw rod between the handle plate and the brake seat. A locking rod is provided on the outer peripheral wall of the locking nut.

4. An adjustable longitudinal beam type self-propelled hanging basket vehicle according to claim 1, characterized in that: The suspended hanging basket formwork system described above is composed of suspension rods, bottom longitudinal beams, bottom cross beams, connecting cross beams, bottom formwork, side formwork and intermediate formwork. The upper ends of several suspension rods are screwed on the longitudinal beams in the air at the upper end of the box girder to be cast. The bottom longitudinal beams are screwed on the lower ends of the respective suspension rods. The end of the bottom longitudinal beam near the formed box girder end is fixed or abutted against the corresponding position of the formed box girder end.

5. An adjustable longitudinal beam type self-propelled hanging basket vehicle according to claim 1, characterized in that: The balance force splitting structure described above is a portal strut frame provided on the middle part of the carriage plate of the crawler transporter. The lower ends of the two struts of the portal strut frame are respectively fixed on the middle part of the carriage plate corresponding to the upper end of the corresponding longitudinal beam. Connecting ears are respectively provided on both sides of the top ends of the two struts. The front part of the longitudinal beam is connected to the top end of the strut frame through a front pull rod. The corresponding rear end of the vehicle body is connected to the corresponding side top end of the strut frame through a rear pull rod.

6. An adjustable longitudinal beam type self-propelled hanging basket vehicle according to claim 1, characterized in that: A fastening frame is provided between the two longitudinal beams in front of the crawler transporter, and a fastening connection frame is provided between the adjacent two longitudinal beams in front of the adjacent two crawler transporters.

7. An implementation method of an adjustable longitudinal beam type self-propelled hanging basket vehicle according to claim 1, characterized in that: It includes the following steps: (1) The crawler transporter and the support mechanism are manufactured by the crawler vehicle factory. The crawler transporter is a heavy and widened vehicle body. The width of the vehicle body frame is at least 3m, and the width of the carriage plate is at least 4m. The carriage plate is made of thick steel and is fixed to the vehicle body frame. The left and right side edges of the carriage plate of the crawler transporter extend to the outside of the left and right outer sides of the running crawlers. Adjustable longitudinal beam mechanisms are provided at the lower parts of the extended left and right side edges of the carriage plate. Longitudinal beams are provided on the adjustable longitudinal beam mechanisms. A balance force splitting structure is provided on the carriage plate of the crawler transporter, and a counterweight block is provided on the rear part of the carriage plate; Prepare the suspension rods, bottom longitudinal beams, bottom cross beams, connecting cross beams, bottom formwork, side formwork and intermediate formwork; Prepare the fastening frame and the fastening connection frame; the longitudinal beams and the adjustable longitudinal beam mechanisms are stored and transported separately; (2) According to the width of the box girder to be cast of the bridge deck structure, an adjustable longitudinal beam type self-propelled hanging basket vehicle is equipped. One adjustable longitudinal beam type self-propelled hanging basket vehicle can complete the construction of the box girder to be cast with a width equal to or less than 8m and a length of 3.5 - 7m. If the width of the box girder to be cast is equal to or less than 16m, then two adjustable longitudinal beam type self-propelled hanging basket vehicles are equipped; and so on; (3)When the width of the box girder to be poured is equal to or less than 8 m, run an adjustable longitudinal girder self-traveling hanging basket vehicle to the middle of the constructed bridge deck of the formed box girder at the rear end of the box girder to be poured. The front of the self-traveling hanging basket vehicle faces the box girder to be poured, and the longitudinal central axis of the adjustable longitudinal girder self-traveling hanging basket vehicle coincides with the longitudinal central axis of the middle of the box girder to be poured. Place the two supports respectively on the front edge of the formed box girder bridge surface at the front end of the longitudinal girder. The longitudinal central axis of each longitudinal girder coincides with or is in the same plane as the longitudinal central axis of the groove or through hole of the corresponding support; If the width of the box girder to be poured is equal to or less than 16 m, place two adjustable longitudinal girder self-traveling hanging basket vehicles side by side horizontally with a distance of 4 m between them; (4)Place the two longitudinal girders into the two guide rail cylinders in the adjustable longitudinal girder mechanism from one end respectively. Run the adjustable longitudinal girder mechanism so that the front part of the longitudinal girder is located in the groove or through hole of the support and then hangs in the upper space of the box girder to be poured, forming a suspended part longitudinal girder. The longitudinal girder located in the support forms a fulcrum part longitudinal girder, and the longitudinal girder at the rear end of the support forms a power arm longitudinal girder; when the length of the suspended part longitudinal girder is determined, extending the length of the power arm longitudinal girder and placing the vehicle body at the rear end of the longitudinal girder are safety guarantees for supporting the suspended part longitudinal girder; after the two longitudinal girders are in place, stop the operation of the adjustable longitudinal girder mechanism, brake the vehicle body, and fix the longitudinal girders in the support and in the guide rail cylinder through the locking device; (5)Set a balance force structure on the two longitudinal girders and the vehicle body: Fix one end of each of the two steel wires on the corresponding winch respectively. The other end of each steel wire bypasses the steering pulley at the top of the corresponding side support frame and is connected to the upper connecting ear at the front end of the corresponding side longitudinal girder. Start the two first motors. The two first motors drive the respective winches to rotate through the reducers to tighten the steel wires respectively. After each steel wire bears force, turn off the two first motors and brake the winches on the winch seats; Or, connecting ears are respectively provided on both sides of the top ends of the two supports. The upper connecting ear at the front end of the longitudinal girder is connected to the connecting ear at the top end of the support frame through the front pull rod, and the corresponding rear end of the vehicle body is connected to the connecting ear at the corresponding side top end of the support frame through the rear pull rod to make each front and rear pull rod bear force; (6)Connect the side walls between the two longitudinal girders at the front end of the same vehicle body with a fastening frame; connect the side walls between the two adjacent longitudinal girders at the front ends of the two vehicle bodies with an interconnection fastening frame; to maintain the stability of the longitudinal girders; (7)Complete the installation of the suspended hanging basket formwork system on the suspended part longitudinal girder; complete the pouring construction of this section of the box girder to be poured, cure it. After the box girder to be poured reaches the required strength, remove the formwork and the suspended hanging basket formwork system; (8)For the forward movement of the adjustable longitudinal girder self-traveling hanging basket vehicle, in the state of fixing the longitudinal girders in the support and in the guide rail cylinder through the locking device, start the vehicle body to move forward or the two vehicle bodies move forward synchronously and drive the longitudinal girders and the supports to move forward on the constructed bridge body until reaching the designated construction position of the next section; After adjusting the position of the forward moving vehicle body or each vehicle body according to step (3), lock the vehicle body or each vehicle body, and complete the installation of the suspended hanging basket formwork system and the pouring construction of this section of the box girder to be poured according to step (7); (9) Repeat steps (7) to (8) in sequence until the bridge body construction is completed, and then remove the longitudinal beam. The adjustable longitudinal beam self-propelled basket vehicle can be transferred to the construction site, or the longitudinal beam, gate-shaped support frame, winch seat, first motor reducer and counterweight block can be unloaded from the crawler transport vehicle and used as a transport vehicle or tractor.

8. The method according to claim 7, Features: The ratio of the length of the power arm longitudinal beam to the length of the suspension part longitudinal beam is at least 2 to 3:

1.

9. The method according to claim 7, Features: If the width of the box beam to be poured is equal to or less than 16m, two adjustable longitudinal beam self-propelled basket trucks are placed side by side horizontally and 4m apart. When the width of the box beam to be poured is equal to 16m, two adjustable longitudinal beam self-propelled basket trucks are placed side by side horizontally and 4m apart. When the width of the pouring box beam is less than 16m, two adjustable longitudinal beam self-propelled basket trucks are placed side by side horizontally and the distance between them is reduced accordingly.

10. The method according to claim 7, Features: The fastening frame and the interconnected fastening frame are X-shaped frames, made of I-beams, and a butt flange is provided at the butt end of the fastening frame and the longitudinal beam.

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