Three-dimensional distributing machine for precast beam concrete distribution

Abstract

The utility model discloses a three-dimensional distributing machine for precast beam concrete distribution, which comprises a walking supporting frame, a walking cart, a walking trolley and a lifting distributing hopper, the walking supporting frame comprises a plurality of upright supporting legs and a walking beam erected at the top ends of the upright supporting legs, and a supporting and walking path is provided for the walking cart; the walking cart is erected at the top end of the walking supporting frame and comprises a main body support and a driving mechanism of the main body support, and a bidirectional guide rail is arranged on the main body support; the walking trolley is loaded on the two-way guide rail of the walking cart and can walk along the two-way guide rail in a two-way mode; the lifting material distribution hopper is fixed to the walking trolley and can vertically ascend and descend. The four-direction walking and material distribution pouring device is reasonable in layout, can walk in four directions and distribute and pour in a design range, completely realizes mechanization of precast beam concrete distribution, basically realizes automation, reduces the labor intensity of workers, and improves the working efficiency; meanwhile, various prefabricated beams can be compatible and collinear in specification, and the utilization rate of the production line is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of concrete prefabricated part manufacturing, in particular to a three-dimensional distributing machine for prefabricated beam concrete distribution. BACKGROUND

[0002] The prefabricated construction process has been the mainstream process for bridge construction, and the core advantage of the current prefabricated beam construction process lies in its high efficiency, environmental protection and high quality. First, the beam body is prefabricated in the factory to ensure the quality of the component; then, only assembly is needed on site, which greatly shortens the construction period, reduces the impact on the environment, and improves the stability of the structure.

[0003] The prefabricated beam is a beam that is prefabricated in a factory and then installed and fixed at the designed position on the construction site. The intelligent beam yard production line is an automatic production line for producing prefabricated beams to meet market demand. The use of the intelligent beam yard production line to produce prefabricated beams can achieve standardization, mechanization and automation, and is easy to control the construction period, environmental protection and quality. The existing prefabricated beam has a fixed mold and is poured manually. Even if it is produced in a pipeline, the pouring is basically all manual hopper pouring, which is time-consuming and labor-intensive, resulting in low production efficiency and changes in construction period and quality. Therefore, there is an urgent need for a distribution equipment that can adapt to the large capacity of prefabricated beam concrete and has high automation. SUMMARY

[0004] The utility model aims at solving the above-mentioned problems in the prior art and provides a three-dimensional distributing machine for prefabricated beam concrete distribution.

[0005] To solve the above-mentioned technical problems, the utility model adopts the technical scheme of a three-dimensional distributing machine for prefabricated beam concrete distribution, which comprises a walking support frame, a walking cart, a walking trolley and a lifting hopper. The walking support frame comprises a plurality of column legs and a walking beam erected at the top of the column legs. The walking beam is provided with a walking track, which provides support and a walking path for the walking cart. The walking cart is erected on the top walking track of the walking support frame and comprises a main support and a driving mechanism. The main support is provided with a bidirectional guide rail, which is perpendicular to the walking track. The walking trolley is loaded on the bidirectional guide rail of the walking cart and can move bidirectionally along the bidirectional guide rail. The lifting hopper is fixed on the walking trolley and can be lifted vertically.

[0006] Furthermore, the main frame of the walking trolley is a frame structure, including two cross beams and two longitudinal beams, which are fixedly connected to each other; the two longitudinal beams are respectively erected above the two walking beams in the walking support frame, and wheels compatible with the walking tracks are installed at the bottom; the two cross beams are fixedly erected between the two longitudinal beams, and their top surfaces are provided with two-way guide rails; the driving mechanism of the walking trolley is fixedly installed on one of the longitudinal beams, and its output end is transmission-connected to the wheel on the same side.

[0007] Furthermore, the walking trolley includes a mobile platform, wheels installed under the mobile platform, and a power mechanism that drives the mobile platform to move, wherein the middle of the mobile platform is hollow, and the lifting cloth bucket is installed from top to bottom inside the middle hollow; the power mechanism includes a motor, a transmission shaft and a matching coupling, wherein the motor is fixedly installed on the side of the walking trolley, and its output end is connected to the transmission shaft through a coupling, and the transmission shaft is then connected to the wheel shaft under the mobile platform.

[0008] Furthermore, the lifting material hopper includes a split upper hopper and a lower hopper, which are connected by a driving cylinder; the upper hopper includes an upper mounting platform, a fixed beam and a connecting hopper, wherein the fixed beam includes two transverse fixed beams and two longitudinal fixed beams, which are fixed in a criss-cross manner to form a frame structure and are placed on the bottom surface of the upper mounting platform; the connecting hopper is arranged at the bottom center of the upper mounting platform and fixedly connected thereto, and a feeding cavity is provided inside the connecting hopper which passes through the upper and lower parts of the upper hopper; a connecting base is fixedly provided at the bottom center of the above-mentioned longitudinal fixed beam.

[0009] The lower hopper includes a discharge bin, a stirring roller and its power assembly, a feeding roller and its power assembly, and multiple door openings at the bottom, wherein a driving cylinder is installed on the left and right outer walls of the discharge bin, and the end of the telescopic rod of the driving cylinder is hinged to the connecting base on the corresponding side, and the bottom of the connecting hopper is inserted into the upper end opening of the discharge bin; the stirring roller is rotatably installed in the middle and lower part of the discharge bin, and one end thereof is externally connected to the output end of the first driving motor; the feeding roller is rotatably installed in the lower part of the discharge bin, and one end thereof is externally connected to the output end of the second driving motor; the bottom of the discharge bin is provided with multiple openings, and a sealing door that can be relatively sealed is slidably installed on the outer side of the opening and closing.

[0010] Furthermore, four vertical guide columns are fixedly installed at the bottom of the fixed beam in the upper hopper, and guide slide rails are provided along the length direction of the four vertical guide columns on two opposite sides; correspondingly, composite bearing mounting seats are fixedly installed on the four corners of the top end of the discharge bin in the lower hopper, and a guide composite bearing that is compatible with the above-mentioned guide slide rails is rotatably installed on each composite bearing mounting seat.

[0011] Furthermore, an adjustable mechanical anti-slip safety mechanism is provided on the back wall of the guide slide rail in the vertical guide column, including a fixed plate and an anti-slip support rod fixedly installed on the outside of the fixed plate by bolts; correspondingly, anti-slip blocks are also fixedly installed on the four corners of the top of the discharge bin in the lower hopper, opposite to the setting position of the composite bearing mounting seat.

[0012] Furthermore, a slide groove is provided at the bottom opening and closing mouth of the discharge bin, and the sealing door is slidably installed in the corresponding slide groove; a connecting lug is provided at the bottom of each sealing door, and a plurality of groups of telescopic cylinders are hingedly installed at the bottom of the discharge bin, and the piston rod end of each group of telescopic cylinders is hinged to the corresponding sealing door connecting lug, driving the sealing door to slide and thereby controlling the opening and closing of the opening and closing mouth.

[0013] Furthermore, a plurality of power-off unloading emergency windows are provided at the bottom of the front side wall of the discharge bin, and a sealing cover is installed on the outside.

[0014] Furthermore, a detachable filter screen is installed on the upper part of the feeding cavity.

[0015] Furthermore, it also includes an automated control system that combines electricity, hydraulics and gas to integrate the operation and lifting of the traveling trolley, traveling car and lifting material distribution hopper into a whole, so as to complete the concrete distribution in an orderly manner.

[0016] Compared with the existing technology, the utility model has the following beneficial effects: the utility model has a reasonable layout, and through the cooperation of the walking trolley, the walking car and the lifting material placing hopper, it can walk in four directions within the design range to carry out material placing and pouring, which changes the way of manual material filling, fully realizes the mechanization of precast beam concrete placing, and basically realizes automation, effectively solving the problems of large casting volume, large casting space range, and co-linear casting of various varieties in the existing technology similar to precast beams; reduces manual labor intensity, improves work efficiency, and can achieve compatible and co-linear casting of various precast beam specifications by adjusting the walking range and lifting height range of the placing machine, thereby improving the utilization rate of the production line and reducing investment costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 This is a front view of the lifting cloth hopper in the utility model;

[0021] Figure 4 This is a left view of the lifting cloth hopper in the utility model;

[0022] Figure 5 This is a split structural view of the lifting cloth hopper in the utility model;

[0023] Figure 6 This is a split isometric view of the lifting material hopper in the utility model;

[0024] Figure 7 This is a longitudinal center sectional view of the lower hopper in the lifting material distribution hopper of the utility model;

[0025] In the figure: 1. Travel support frame, 2. Travel trolley, 3. Travel trolley, 4. Lifting feeding hopper;

[0026] 11. Support column, 12. Travel beam, 13. Travel track, 14. Diagonal support rod, 15. Limit plug, 21. Cross beam, 22. Longitudinal beam, 23. Two-way guide rail, 24. Wheel, 25. Drive mechanism, 26. Limit pulley block, 31. Mobile platform, 32. Drag chain, 41. Upper hopper, 42. Lower hopper, 43. Drive cylinder;

[0027] 410. Upper mounting platform, 411. Horizontal fixed beam, 412. Longitudinal fixed beam, 413. Connecting hopper, 414. Connecting base, 415. Vertical guide column, 416. Guide rail, 417. Fixed plate, 418. Anti-slip support rod, 419. Feed chamber, 420. Discharge bin, 4201. Power-off unloading emergency window, 4202. Sealing cover, 421. First drive motor, 422. Stirring roller, 423. Second drive motor, 424. Feed roller, 425. Opening and closing mouth, 4251. Slide, 426. Sealing door, 427. Telescopic cylinder, 428. Guide composite bearing, 429. Anti-slip block. DETAILED DESCRIPTION

[0028] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "front", "back", "left", "right", "inside", "outside", "one end", "the other end", "end", "inside", "top", "bottom", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings. They are only relational words determined for the convenience of describing the structural relationship of each component in the present invention, and do not specifically mean that any component in the present invention must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first" and "second" in a utility model are used for descriptive purposes only and do not specifically indicate an order or sequence, nor are they used to limit the utility model. They are simply used to distinguish components or operations described with the same technical terms, and should not be understood as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features specified as "first" or "second" may explicitly or implicitly include at least one of such features.

[0030] In the description of this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connected," "set," etc. should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections or indirect connections through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0031] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings:

[0032] like Figure 1 and Figure 2 As shown, a three-dimensional concrete placing machine for precast beam concrete placing includes a walking support frame 1, a walking trolley 2, a walking trolley 3, a lifting placing hopper 4 and an automated control system compatible with the entire device. The walking support frame 1 mainly provides support for the entire device, allowing the placing equipment to travel at a high altitude and change positions. It can place and pour materials within a range set according to actual production. Specifically, it includes a plurality of column legs 11 and a walking beam 12 erected on the top of the column legs 11; the plurality of column legs 11 are arranged in two rows at intervals and parallel to each other, and a walking beam 12 is fixedly installed on the top of each row of column legs 11, and a diagonal brace 14 is fixedly added between the top of each column leg 11 and the walking beam 12 to improve the installation stability and strength of the walking beam 12; the two walking beams 12 are flush with each other, and their ends are fixedly connected to each other by a connecting beam to form a rectangular frame, thereby enhancing the stability of the entire walking support frame 1; at the same time, the entire walking support frame 1 is assembled with steel profiles. The top surface of each walking beam 12 is laid with a walking track 13 along its length direction, and the walking trolley 2 is mounted on the two walking tracks 13 and can move in both directions along the walking tracks 13.

[0033] The walking trolley 2 includes a main frame and its driving mechanism, wherein the main frame is a steel frame structure, including two cross beams 21 and two longitudinal beams 22, and the two ends of the two cross beams 21 are respectively fixed to the two longitudinal beams 22, and are arranged in parallel at intervals; the two longitudinal beams 22 are respectively erected on the walking tracks 13 at the top of the above-mentioned two walking beams 12, and the bottom of each longitudinal beam 22 is installed with a wheel 24 adapted to the walking track 13. At the same time, a driving mechanism 25 is fixedly installed on the outer side of one of the longitudinal beams 22. The driving mechanism 25 can use a stepping motor, and its output end is transmitted and connected to the wheel 24 on the same side, thereby driving the entire walking trolley 2 to move bidirectionally along the walking track 13. In order to prevent the derailment of the traveling trolley 2 and the traveling track 13, a limit pulley set 26 is fixedly installed at both ends of the above-mentioned two longitudinal beams 22. The pulleys in the limit pulley set 26 are located on both sides of the traveling track 13 and slide to engage the traveling track 13. At the same time, the two ends of the traveling beam 12 in the above-mentioned traveling support frame 1 are fixedly installed with limit plugs 15, which can cooperate with the limit pulley set 26 to limit the movement position of the traveling trolley 2. The top surface of each of the above-mentioned cross beams 21 is provided with a two-way guide rail 23 along its length direction. The laying direction of the two-way guide rail 23 is relatively perpendicular to the laying direction of the traveling track 13 on the above-mentioned traveling beam 12.

[0034] The walking trolley 3 is slidably mounted on the two-way guide rail 23 of the walking trolley 2, and includes a mobile platform 31 and a power mechanism capable of driving the mobile platform 31 to move. The bottom of the mobile platform 31 is fixedly mounted with wheels adapted to the two-way guide rail 23. The power mechanism includes a motor, a transmission shaft, and a coupling adapted to the transmission shaft, wherein the motor is fixedly mounted on one of the outer ends of the mobile platform 31, the output end of the motor is connected to the transmission shaft through a coupling, and the other end of the transmission shaft is coaxially connected to the wheel shaft on the corresponding side, thereby driving the mobile platform 31 to move back and forth along the two-way guide rail 23. Similarly, in order to prevent the walking trolley 3 from derailing from the two-way guide rail 23 on the walking trolley 2, a limiting pulley set is also fixedly provided on the end side of the mobile platform 31. A drag chain 32 is also provided on the side of one of the crossbeams 21 in the traveling trolley 2, which is mainly used to install cables and play a guiding role. Because the above-mentioned motor moves back and forth following the traveling trolley 3, it provides power to the above-mentioned motor while preventing the cable from causing obstruction.

[0035] The center of the mobile platform 31 in the walking trolley 3 is provided with a middle hollow to form a "mouth" shape, and the lifting cloth hopper 4 is installed in the middle hollow from top to bottom. Figures 3 to 7As shown, the lifting distribution hopper 4 includes a split upper hopper 41 and a lower hopper 42, wherein the upper hopper 41 is fixed on the walking trolley 3, and the lower hopper 42 is located directly below the upper hopper 41. The upper hopper 41 is connected by a driving cylinder 43 and the driving cylinder 43 controls the vertical lifting of the lower hopper 42 relative to the upper hopper 41. The driving cylinder 43 is driven by a hydraulic cylinder and can withstand a large load, so that the lifting distribution hopper 4 can achieve a large capacity to meet the demand for large amounts of precast concrete beams.

[0036] The upper hopper 41 includes an upper mounting platform 410, a fixed beam, and a connecting hopper 413. The fixed beam includes two transverse fixed beams 411 and two longitudinal fixed beams 412, which are fixed in a crisscross pattern to form a cross-shaped frame structure and are fixedly mounted on the bottom surface of the upper mounting platform 410. The connecting hopper 413 is arranged at the bottom center of the upper mounting platform 410 and fixedly connected thereto, forming an integral part. The interior of the connecting hopper 413 is provided with a feed cavity 419 that passes through the upper and lower parts of the upper hopper 41. During installation, the upper hopper 41 is inserted into the central hollow space from above the mobile platform 31. The fixed beam is installed above the mobile platform 31 and is fixed to the mobile platform 31 via a connecting plate at the bottom of the transverse fixed beam 411 and matching bolts and nuts. A connecting base 414 is fixedly mounted at the bottom center of the two longitudinal fixed beams 412. A vertical guide column 415 pointing vertically downward is fixedly installed at the bottom of the four intersections of the horizontal fixed beam 411 and the longitudinal fixed beam 412 in the fixed beam. The four vertical guide columns 415 are distributed at the bottom of the four corners of the outer side of the upper hopper 41, and two of the four vertical guide columns 415 are fixedly installed with guide slide rails 416 along their length directions on the side walls opposite to each other; an adjustable mechanical anti-slip safety mechanism is also fixedly installed on the back vertical guide column 415 where the guide slide rail 416 is set, which specifically includes a fixed plate 417 and an anti-slip support rod 418 that is detachably fixed to the outer side of the fixed plate 417 by bolts. The anti-slip support rod 418 can adjust the height of the anti-slip support point of its installation position according to actual fabric requirements.

[0037] The lower hopper 42 includes a discharge bin 420, a stirring roller 422 and its power assembly, a feed roller 424 and its power assembly, and a multi-door opening 425 provided at the bottom of the discharge bin 420. The discharge bin 420 has a funnel-shaped longitudinal section, and the top opening of the discharge bin 420 is larger than the outer diameter of the bottom opening of the connecting hopper 413, allowing the connecting hopper 413 to be inserted downward into the lower hopper 42. A driving cylinder 43 is mounted on each of the left and right outer walls of the discharge bin 420 through a base. The distal end of the telescopic rod of the driving cylinder 43 is hinged upward to the connecting base 414 on the corresponding side, thereby connecting the split upper hopper 41 and the lower hopper 42. A stirring roller 422 is provided at the center of the lower middle portion of the discharge bin 420. The two ends of the stirring roller 422 extend outwardly through the side walls of the discharge bin 420 and are fixed in rotation via seat bearings. A first drive motor 421 is fixedly mounted on the outer wall of the discharge bin 420 at one end via a motor base. The output end of the first drive motor 421 is connected to the shaft end of the stirring roller 422 via a speed reducer, driving the shaft end of the stirring roller 422 to prevent the concrete from solidifying. A feed roller 424 is provided at the center of the lower portion of the discharge bin 420. The two ends of the feed roller 424 also extend outwardly through the side walls of the discharge bin 420 and are fixed in rotation via seat bearings. A second drive motor 423 is fixedly mounted on the outer wall of the discharge bin 420 at one end via a motor base. The output end of the second drive motor 423 is connected to the shaft end of the feed roller 424 via a speed reducer, driving the shaft end of the feed roller 424 to rotate. The feed roller 424 adopts a frequency-controlled straight-tooth stirring shaft, and the feed roller 424 is located directly below the stirring roller 422, and its outer diameter is slightly smaller than the width of the discharge bin 420 at this position. The bottom of the discharge bin 420 is provided with a plurality of openings and closing openings 425 arranged side by side, and a slide groove 4251 is provided on the outside of each opening and closing opening 425, and a sealing door 426 is slidably installed in the slide groove 4251 and sealed therewith, and a connecting lug is fixed on the outside of the sealing door 426; the bottom of the discharge bin 420 is also hingedly installed with a plurality of groups of telescopic cylinders 427, which correspond to an opening and closing opening 425 and a corresponding sealing door 426 respectively, and the end of the piston rod in the telescopic cylinder 427 is hinged to the corresponding connecting lug, and the sliding of the sealing door 426 is driven by the extension and contraction of the piston rod, thereby controlling the closing and opening of the opening and closing opening 425; the plurality of groups of telescopic cylinders 427 can operate independently, and can realize the opening and closing of any number of openings and closing openings 425, thereby completing precise material distribution.

[0038] Furthermore, composite bearing mounting seats are fixedly installed at the four outer corners of the top of the discharge bin 420 in the lower hopper 42, and a guide composite bearing 428 compatible with the above-mentioned guide rail 416 is rotatably installed on each composite bearing mounting seat. The guide composite bearing 428 is nested and slid in the corresponding guide rail 416, so that the upper and lower hoppers are like an integrated hopper when in use, avoiding shaking and vibration. Anti-slip blocks 429 are also fixedly installed at the four outer corners of the top of the discharge bin 420 in the lower hopper 42, which are opposite to the above-mentioned guide composite bearing 428 at the corresponding corners and are compatible with the above-mentioned anti-slip support rod 418. When in use, the anti-slip blocks 429 are directly above the anti-slip support rod 418 to form a limit block to avoid sudden separation of the lower hopper 42 and the upper hopper 41.

[0039] Furthermore, a plurality of power-off unloading emergency windows 4201 are provided at the bottom of the front side wall of the discharge bin 420 in the above-mentioned lower hopper 42, which facilitate the internal maintenance and cleaning of the lower hopper 42; a relatively sealed cover 4202 can be removably installed on the outer side of each power-off unloading emergency window 4201.

[0040] Furthermore, a detachable filter is installed on the inner side of the upper portion of the feed cavity 419 in the upper hopper 41 to facilitate the removal of impurities in the raw materials and to provide safety protection.

[0041] The automatic control system, combined with electricity, hydraulics and gas, integrates the operation and lifting of the walking trolley 2, the walking trolley 3 and the lifting material distribution hopper 4 into a whole, and completes the concrete distribution work in an orderly manner. The installation area of ​​the walking support frame 1 is the production design material distribution pouring range.

[0042] As a further optimized technical solution of the present invention, the anti-slip support point of the anti-slip support rod 418 in the above-mentioned adjustable mechanical anti-slip safety mechanism can be automatically adjusted as needed, such as with multiple groups of hydraulically telescopic support rods to meet the degree of automation requirements.

[0043] Furthermore, the lifting distribution hopper 4 is equipped with a weighing safety detection mechanism that coordinates with the stirring roller 422, feeding roller 424, and multiple door openings 425 in real time to achieve precise distribution. The device also has a large overall span, a wide distribution range, and is capable of three-dimensional movement, making it compatible with the co-production of precast beams of various specifications.

[0044] The corresponding driving mechanisms of the above-mentioned traveling trolley 2 and traveling trolley 3 can be selected accordingly according to the project designed during actual production to meet different driving modes for different cloth ranges.

[0045] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the scope of protection of the present invention.

Claims

1. A three-dimensional concrete placing boom for precast beam concrete placing, characterized by: It includes a walking support frame, a walking trolley, a walking trolley and a lifting cloth hopper, wherein the walking support frame includes multiple column legs and a walking beam mounted on the top of the column legs, and a walking track is laid on the walking beam to provide support and a walking path for the walking trolley; the walking trolley is mounted on the walking track at the top of the walking support frame, including a main body bracket and its driving mechanism, and the main body bracket is provided with a two-way guide rail, and its laying direction is relatively perpendicular to the above-mentioned walking track; the walking trolley is loaded onto the two-way guide rail of the walking trolley and can travel in both directions along the two-way guide rail; the lifting cloth hopper is fixed on the walking trolley and can be lifted and lowered vertically.

2. The three-dimensional concrete placing boom for precast beam concrete distribution according to claim 1, characterized in that: The main frame of the walking trolley is a frame structure, including two cross beams and two longitudinal beams, which are fixedly connected to each other; the two longitudinal beams are respectively erected above the two walking beams in the walking support frame, and wheels compatible with the walking tracks are installed at the bottom; the two cross beams are fixedly erected between the two longitudinal beams, and the top surfaces of the two beams are provided with two-way guide rails; the driving mechanism of the walking trolley is fixedly installed on one of the longitudinal beams, and its output end is transmission-connected to the wheel on the same side.

3. The three-dimensional concrete placing boom for precast beam concrete placing according to claim 1, characterized in that: The walking trolley includes a mobile platform, wheels installed under the mobile platform and a power mechanism that drives the mobile platform to move, wherein the middle of the mobile platform is hollow, and the lifting cloth hopper is installed from top to bottom inside the middle hollow; the power mechanism includes a motor, a transmission shaft and a matching coupling, wherein the motor is fixedly installed on the side of the walking trolley, and its output end is connected to the transmission shaft through a coupling, and the transmission shaft is then connected to the wheel shaft under the mobile platform.

4. The three-dimensional concrete placing boom for precast beam concrete placing according to claim 1, characterized in that: The lifting material distribution hopper includes a split upper hopper and a lower hopper, which are connected by a driving cylinder; the upper hopper includes an upper mounting platform, a fixed beam and a connecting hopper, wherein the fixed beam includes two transverse fixed beams and two longitudinal fixed beams, which are fixed in a crisscross manner to form a frame structure and are placed on the bottom surface of the upper mounting platform; the connecting hopper is arranged at the bottom center of the upper mounting platform and is fixedly connected to it, and a feeding cavity is provided inside the connecting hopper that passes through the upper and lower parts of the upper hopper; a connecting base is fixedly provided at the bottom center of the above-mentioned longitudinal fixed beam; The lower hopper includes a discharge bin, a stirring roller and its power assembly, a feeding roller and its power assembly, and multiple door openings at the bottom, wherein a driving cylinder is installed on the left and right outer walls of the discharge bin, and the end of the telescopic rod of the driving cylinder is hinged to the connecting base on the corresponding side, and the bottom of the connecting hopper is inserted into the upper end opening of the discharge bin; the stirring roller is rotatably installed in the middle and lower part of the discharge bin, and one end thereof is externally connected to the output end of the first driving motor; the feeding roller is rotatably installed in the lower part of the discharge bin, and one end thereof is externally connected to the output end of the second driving motor; the bottom of the discharge bin is provided with multiple openings, and a sealing door that can be relatively sealed is slidably installed on the outer side of the opening and closing.

5. The three-dimensional concrete placing boom for precast beam concrete placing according to claim 4, characterized in that: Four vertical guide columns are also fixedly installed at the bottom of the fixed beam in the upper hopper, and guide slide rails are provided along the length direction of the four vertical guide columns on two opposite sides; correspondingly, composite bearing mounting seats are fixedly installed on the four corners of the top end of the discharge bin in the lower hopper, and a guide composite bearing that is compatible with the above-mentioned guide slide rails is rotatably installed on each composite bearing mounting seat.

6. The three-dimensional concrete placing boom for precast beam concrete placing according to claim 5, characterized in that: An adjustable mechanical anti-slip safety mechanism is provided on the back wall of the guide slide rail in the vertical guide column, including a fixed plate and an anti-slip support rod fixedly installed on the outside of the fixed plate by bolts; correspondingly, anti-slip blocks are also fixedly installed on the four corners of the top of the discharge bin in the lower hopper, opposite to the setting position of the composite bearing mounting seat.

7. The three-dimensional concrete placing boom for precast beam concrete placing according to claim 4, characterized in that: The bottom opening and closing opening of the discharge bin is provided with a slide groove, and the sealing door is slidably installed in the corresponding slide groove; the bottom of each sealing door is provided with a connecting lug, and the bottom of the discharge bin is hingedly installed with multiple groups of telescopic cylinders, and the end of the piston rod of each group of telescopic cylinders is hinged to the corresponding sealing door connecting lug, driving the sealing door to slide and thereby controlling the opening and closing of the opening and closing opening.

8. The three-dimensional concrete placing boom for precast beam concrete placing according to claim 4, characterized in that: The bottom of the front side wall of the discharge bin is also provided with a plurality of power-off unloading emergency windows, and a sealing cover is installed on the outside.

9. The three-dimensional concrete placing boom for precast beam concrete placing according to claim 4, characterized in that: A detachable filter screen is installed on the upper part of the feeding cavity.

10. A three-dimensional concrete placing boom for precast beam concrete placing according to any one of claims 1 to 9, characterized in that: It also includes an automated control system that combines electricity, hydraulics and gas to integrate the operation and lifting of the traveling trolley, traveling car and lifting material distribution hopper into a whole, completing the concrete distribution in an orderly manner.

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