A self-propelled cast-in-place box girder integrated bridge-building machine

Abstract

The present invention discloses a self-propelled cast-in-place box girder integrated bridge-building machine, comprising: a main beam, which includes a guide rail and a beam body movably arranged on the guide rail; a plurality of groups of formwork beams, all of which are transversely erected on the main beam; a rear walking trolley, which is used to push the beam body of the main beam to move on the guide rail; an outer formwork system, which is arranged on the formwork beam; a propulsion trolley, which is arranged below the main beam to support the main beam and assist the rear walking trolley in pushing the beam body of the main beam to move on the guide rail; and the propulsion trolley can lift the main beam and the outer formwork system in the casting state, and lower the main beam and the outer formwork system when demolding; and a mobile workshop, which is arranged on the main beam and moves with the movement of the beam body of the main beam. The integrated bridge-building machine of the present invention solves the problems of the existing mobile formwork bridge-building machines with single functions, low construction efficiency and poor working environment.

Description

Technical Field

[0001] The present invention relates to the field of integrated bridge-building machines, and more specifically, to a self-propelled cast-in-situ box-beam integrated bridge-building machine. Background Art

[0002] Mobile formwork bridge-building machine is a kind of construction machinery that comes with its own formwork and uses abutments or piers as supports to cast bridges on site. Traditional mobile formwork bridge-building machines have a single function and can only perform concrete pouring construction. The early stage of bridge deck steel bar binding and later concrete curing still need to be completed with the help of special equipment. This construction method has high energy consumption and low labor productivity, and is not in line with the trend of modernization in the construction industry. Introducing the construction concept of mobile factories into integrated bridge-building machines can not only improve the efficiency of equipment utilization and reduce the difficulty of construction management and on-site operations, but also greatly improve the working environment, so that the construction quality is guaranteed. Summary of the invention

[0003] The purpose of the present invention is to provide a self-propelled cast-in-place box girder integrated bridge-building machine, which integrates steel bar component hoisting, concrete pouring, maintenance and automatic travel. Compared with traditional mobile formwork construction, it has the advantages of high equipment utilization, convenient concrete maintenance, and no impact on existing traffic on both sides of the bridge deck during construction.

[0004] In order to achieve these purposes and other advantages according to the present invention, a self-propelled cast-in-place box girder integrated bridge-building machine is provided, comprising:

[0005] A main beam, comprising a guide rail and a beam body movably arranged on the guide rail;

[0006] A plurality of sets of template cross beams are transversely erected on the beam body of the main beam;

[0007] A rear traveling trolley, which is used to push the beam body of the main beam to move on the guide rail;

[0008] An outer formwork system, which is arranged on the formwork beam;

[0009] A push trolley is arranged below the main beam to support the main beam and assist the rear walking trolley in pushing the beam body of the main beam to move on the guide rail; and the push trolley can lift the main beam and the outer mold system during casting, and lower the main beam and the outer mold system during demoulding; and

[0010] The mobile factory building is arranged on the main beam and moves along with the movement of the beam body of the main beam.

[0011] According to a preferred embodiment of the present invention, in the self-propelled cast-in-place integrated box girder bridge-building machine, each group of the formwork beams includes beams on both sides and a thrust cylinder, and the beams on both sides are closed and separated under the push of the thrust cylinder to avoid bridge piers.

[0012] According to a preferred embodiment of the present invention, in the self-propelled cast-in-place box girder integrated bridge-building machine, the cross beams on both sides are connected by pins.

[0013] According to a preferred embodiment of the present invention, the self-propelled cast-in-place integrated box girder bridge-building machine, the outer formwork system includes a formwork corresponding to each of the beams and an adjusting screw rod, the formwork includes a bottom formwork and a side formwork, the bottom formwork is installed on the corresponding beam, one end of the adjusting screw rod is connected to the formwork beam, and the other end is used to support the side formwork, and the angle of the side formwork is adjusted by adjusting the length of the adjusting screw rod.

[0014] According to a preferred embodiment of the present invention, the self-propelled cast-in-place box girder integrated bridge-building machine, the mobile plant includes a truss, a crane, a retractable roof, a material distribution system, a propulsion system, a jacking cylinder and a side curtain-type protective device; the propulsion system is composed of a propulsion track and a propulsion cylinder;

[0015] One end of the truss is mounted on the beam body of the main beam, and the other end is mounted on the propulsion track of the propulsion system, and the truss moves along the propulsion track under the propulsion action of the propulsion cylinder;

[0016] The crane is installed on the truss and is used for hoisting steel bar parts;

[0017] The retractable roof and the side curtain protection equipment are installed on the truss to maintain the poured concrete;

[0018] The material distribution system is installed on the truss;

[0019] The lifting cylinder is used to control the lifting and lowering of the truss. In the pouring state, the lifting cylinder lifts up the truss, and the truss does not contact the propulsion track.

[0020] According to a preferred embodiment of the present invention, the self-propelled cast-in-place integrated box girder bridge-building machine, the concrete placing system consists of a concrete placing machine and a pump pipe, there are two concrete placing machines installed on the truss, and the pump pipe is used to transport concrete from the pump truck to the concrete placing machine.

[0021] According to a preferred embodiment of the present invention, in the self-propelled cast-in-place box girder integrated bridge-building machine, the propulsion track is installed on the cast-in-place beam section.

[0022] According to a preferred embodiment of the present invention, the self-propelled cast-in-place box girder integrated bridge-building machine has four propulsion cylinders which are symmetrically arranged on both sides of the propulsion track.

[0023] According to a preferred embodiment of the present invention, in the self-propelled cast-in-place box girder integrated bridge-building machine, in the main beam, the guide rail is provided with an inverted T-shaped slide groove along its length direction, and a plurality of inverted T-shaped sliding blocks are provided at intervals along the length direction at the bottom of the beam body, and the inverted T-shaped sliding blocks are movably clamped in the inverted T-shaped slide groove, so that the beam body can be movably set on the guide rail without falling off; a plurality of limit grooves are provided at intervals in the inverted T-shaped slide groove, and a ball bearing is placed in each of the limit grooves.

[0024] According to a preferred embodiment of the present invention, in the self-propelled cast-in-place box girder integrated bridge-building machine, a receiving groove is provided at the bottom of the inverted T-shaped slideway of the guide rail, and the receiving groove includes a vertically arranged linear receiving groove and an L-shaped receiving groove connected to the linear receiving groove at one end, and the L-shaped receiving groove is connected to the inverted T-shaped slideway at one end away from the linear receiving groove;

[0025] A first extrusion plate is arranged in the linear receiving groove, a sponge block soaked with lubricating oil is placed under the first extrusion plate, the upper surface of the first extrusion plate is connected to the second extrusion plate through a spring, the second extrusion plate is arranged obliquely, and a lower side thereof is flush with the bottom surface of the inverted T-shaped slide groove, as the beam body moves along the guide rail, the beam body squeezes the second extrusion plate, and then the first extrusion plate squeezes the sponge block, and the lubricating oil in the sponge block will reach the surface of the inverted T-shaped slide groove along the L-shaped receiving groove to lubricate the beam body and the guide rail.

[0026] The present invention has at least the following beneficial effects: The self-propelled cast-in-place box girder integrated bridge-building machine of the present invention solves the problems of the existing mobile formwork bridge-building machine with single function, low construction efficiency and poor working environment. Factory construction conditions will greatly improve labor production efficiency, improve the working environment of operators, improve project quality and reduce the occurrence of safety accidents. In addition, when the equipment is in construction, the concrete pump truck does not need to occupy the road surface on both sides of the box girder to be cast like a sky pump.

[0027] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A longitudinal view of an integrated bridge-building machine in one embodiment of the present invention;

[0029] Figure 2 A top view of the self-propelled cast-in-situ box girder integrated bridge-building machine in the above embodiment;

[0030] Figure 3 It is a transverse view of the self-propelled cast-in-place box girder integrated bridge-building machine in the above embodiment;

[0031] Figure 4 This is a surveying view of a mobile workshop of a self-propelled cast-in-situ box girder integrated bridge-building machine in one embodiment of the present invention;

[0032] Figure 5 It is a cross-sectional schematic diagram of a main beam in one embodiment of the present invention;

[0033] Figure 6 It is a schematic cross-sectional view of the guide rail of the main beam in another embodiment of the present invention. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0035] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art can think of other obvious variations. The basic principles of the present invention defined in the following description can be applied to other embodiments, variations, improvements, equivalents, and other technical solutions that do not deviate from the spirit and scope of the present invention.

[0036] Those skilled in the art should understand that, in the disclosure of the present invention, the orientation or position relationship indicated by the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. are based on the orientation or position relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the above terms should not be understood as limiting the present invention.

[0037] It is to be understood that the term "one" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element may be one, while in another embodiment, the number of the element may be multiple, and the term "one" should not be understood as a limitation on the quantity.

[0038] like Figure 1 As shown, a self-propelled cast-in-situ box girder integrated bridge-building machine of the present invention comprises:

[0039] The main beam 100 includes a guide rail 110 and a beam body 120 movably disposed on the guide rail;

[0040] like Figure 2-3As shown, several groups of template beams 200 are horizontally erected on the main beam 100; each group of template beams 200 includes beams 201 on both sides and a beam opening and closing cylinder 202, and the beams 201 on both sides are pushed by the beam opening and closing cylinder 202 to close and separate to avoid the bridge pier. The template beams 200 are welded I-beam structures.

[0041] A rear walking trolley 300, which is used to push the beam body 120 of the main beam 100 to move on the guide rail 110;

[0042] An outer formwork system 400, which is arranged on the formwork beam 200;

[0043] A push trolley 500 is disposed below the main beam 100 to support the main beam and assist the rear walking trolley 300 in pushing the beam body 120 of the main beam to move on the guide rail 110; and the push trolley 500 can lift the main beam 100 and the outer mold system during casting, and lower the main beam and the outer mold system during demoulding; and

[0044] The mobile factory building 600 is arranged on the main beam 100 and moves along with the movement of the beam body of the main beam 100 .

[0045] In the above embodiment, the rear walking trolley 300 and the pushing trolley 500 simultaneously push the beam body 120 of the main beam 100 to move on the guide rail 110, that is, drive the entire bridge-building machine to move forward. The two beams 201 form a group. When the beams 201 encounter a bridge pier, under the action of the beam opening and closing cylinder 202, two groups of beams 201 are opened and closed each time to pass through the hole. When one group of beams 201 passes through the hole, it is immediately closed, and the next group of beams 201 is immediately opened and closed. During the process, the main beam 100 does not open and close with the beams, thus avoiding the problem of unstable overall structure of the integrated bridge-building machine during the construction of an ultra-wide bridge deck due to the opening and closing of the main beam. When it moves to a predetermined position, the mobile plant is used for coagulant pouring and maintenance.

[0046] According to a preferred embodiment of the present invention, the self-propelled cast-in-situ box girder integrated bridge-building machine is as follows: Figure 4 As shown, the mobile plant includes a truss 610, a crane 620, a retractable roof 630, a material distribution system, a propulsion system, a lifting cylinder 660, and a side curtain-type protective device 670; the propulsion system is composed of a propulsion track 651 and a propulsion cylinder 652;

[0047] One end of the truss 610 is mounted on the beam body 120 of the main beam, and the other end is mounted on the propulsion track of the propulsion system. The truss 610 moves along the propulsion track 652 under the propulsion action of the propulsion cylinder 652;

[0048] The crane 620 is installed on the truss 610 and is used for hoisting the steel bar component 11;

[0049] The retractable ceiling 630 and the side curtain-type protective device 670 are installed on the truss 610 to maintain the poured concrete; and the retractable ceiling 630 can be opened during steel bar binding and concrete maintenance to provide construction workers with factory construction conditions and improve the working environment; the side curtain-type protective device 670 is located on both sides of the mobile factory building and can be raised and lowered when necessary to provide a suitable environment for construction and concrete maintenance.

[0050] The concrete placing system is installed on the truss 610; the concrete placing system is composed of a concrete placing machine 641 and a pump pipe 642. There are two concrete placing machines 641 installed on the truss 610. The pump pipe 642 is used to transport concrete from a pump truck to the concrete placing machine 641. The concrete placing machine can cover the entire construction area for concrete pouring;

[0051] The lifting cylinder 660 is used to control the lifting and lowering of the truss 610 . In the pouring state, the lifting cylinder 660 lifts up the truss 610 , and the truss 610 does not contact the propulsion track 651 .

[0052] In the above implementation, the working process of the integrated bridge-building machine is as follows:

[0053] (1) After the bridge-building machine is in place, the crane 620 in the mobile plant 600 is used to hoist the steel bars, install the prestressed pipes and steel bar joints, etc.

[0054] (2) After the reinforcement is tied, the pump pipe 642 of the mobile plant 600 is connected to the external pump truck, the retractable roof 630 is retracted, and the pouring of concrete in the section to be poured begins.

[0055] (3) After pouring is completed, the connection between the pump pipe 642 and the pump truck is removed, the retractable roof 630 is unfolded, and concrete curing is carried out.

[0056] (5) After the concrete reaches the design requirements, the main beam 100 and the outer formwork system are lowered using the pusher trolley 500 to complete demoulding.

[0057] (6) Prepare the bridge-building machine for traveling. During the traveling process, when the beam 201 passes over a pier, the horizontal opening and closing cylinder 202 is used to open the molds on the left and right sides of the beam, two groups are opened each time, and the molds are closed immediately after a single group passes over a pier to maintain the overall stability of the bridge-building machine.

[0058] According to a preferred embodiment of the present invention, in the self-propelled cast-in-place box girder integrated bridge-building machine, the cross beams on both sides are connected by pins.

[0059] According to a preferred embodiment of the present invention, the self-propelled cast-in-place integrated box girder bridge-building machine, the external formwork system includes a formwork corresponding to each of the beams 201 and an adjusting screw rod, the formwork includes a bottom formwork and a side formwork, the bottom formwork is installed on the corresponding beam 201, one end of the adjusting screw rod is connected to the formwork beam, and the other end is used to support the side formwork, and the angle of the side formwork is adjusted by adjusting the length of the adjusting screw rod.

[0060] According to a preferred embodiment of the present invention, in the self-propelled cast-in-place box girder integrated bridge-building machine, the propulsion track 651 is installed on the cast beam section 12.

[0061] According to a preferred embodiment of the present invention, the self-propelled cast-in-place integrated box girder bridge-building machine has four propulsion cylinders which are symmetrically arranged on both sides of the propulsion track 651.

[0062] According to a preferred embodiment of the present invention, the self-propelled cast-in-situ box girder integrated bridge-building machine is as follows: Figure 5 As shown, in the main beam 100, an inverted T-shaped slot 111 is provided through the guide rail 110 along its length direction, and a plurality of inverted T-shaped sliders 121 are provided at intervals along the length direction at the bottom of the beam body 120, and the inverted T-shaped sliders 121 are movably clamped in the inverted T-shaped slot 111, so that the beam body 120 can be movably set on the guide rail 110 without falling off; a plurality of limiting slots 112 are provided at intervals in the inverted T-shaped slot 111, and a ball 113 is placed in each of the limiting slots 112.

[0063] In the above embodiment, the inverted T-shaped slide groove 111 and the inverted T-shaped slider 121 that cooperate with each other are used to realize the stable movement of the beam body 110 on the guide rail 110, and a plurality of limit grooves 112 are arranged at intervals in the inverted T-shaped slide groove 111, and a ball 113 is placed in each of the limit grooves 112. By rolling walking, the resistance of the beam body 110 during walking can be reduced, thereby improving the walking efficiency.

[0064] According to a preferred embodiment of the present invention, the self-propelled cast-in-situ box girder integrated bridge-building machine is as follows: Figure 6 As shown, a receiving groove is provided at the bottom of the inverted T-shaped slide groove 111 of the guide rail 110, and the receiving groove includes a vertically arranged linear receiving groove 114 and an L-shaped receiving groove 115 connected thereto at one end, and the end of the L-shaped receiving groove 115 away from the linear receiving groove 114 is connected to the inverted T-shaped slide groove;

[0065] A first extrusion plate 7 is arranged in the linear receiving groove 114, a sponge block 8 soaked with lubricating oil is placed below the first extrusion plate 7, the upper surface of the first extrusion plate 7 is connected to a second extrusion plate 10 via a spring 9, the second extrusion plate 10 is arranged obliquely, and its lower side is flush with the bottom surface of the inverted T-shaped slideway 111, and as the beam body 120 moves along the guide rail 110, the beam body 120 squeezes the second extrusion plate 10. Along the moving direction of the beam body 120, the beam body 120 first contacts the end of the second extrusion plate 10 that is flush with the bottom surface of the inverted T-shaped slideway 111.

[0066] In the above embodiment, as the beam 120 moves along the guide rail 110, the beam 120 squeezes the second squeezing plate 10, and then the spring 9 is compressed and deformed, and then the first squeezing plate 7 squeezes the sponge block 8, and the lubricating oil therein will reach the surface of the inverted T-shaped slide groove 115 along the L-shaped receiving groove to lubricate the beam 120 and the guide rail 110; after the beam 120 passes, the external pressure disappears, the spring 9 will recover, and then the first squeezing plate 7 will no longer squeeze the sponge block 8, and the lubricating oil therein will continue to be stored in the sponge block 8 for next use. Automatic lubrication can be achieved without any additional operation, avoiding the difficulty of movement caused by rust at the bottom of the beam.

[0067] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A self-propelled cast-in-place box girder integrated bridge-building machine, characterized in that: include: A main beam, comprising a guide rail and a beam body movably arranged on the guide rail; Several groups of template cross beams are transversely erected on the beam body on the main beam; A rear traveling trolley, which is used to push the beam body of the main beam to move on the guide rail; An outer formwork system, which is arranged on the formwork beam; A push trolley is arranged below the main beam to support the main beam and assist the rear walking trolley in pushing the beam body of the main beam to move on the guide rail; and the push trolley can lift the main beam and the outer mold system during casting, and lower the main beam and the outer mold system during demoulding; and A mobile factory building is arranged on the main beam and moves along with the movement of the beam body of the main beam; Each group of the template beams includes beams on both sides and a propulsion cylinder, and the beams on both sides are pushed by the propulsion cylinder to close and separate to avoid the bridge piers; The mobile plant includes a truss, a crane, a retractable roof, a material distribution system, a propulsion system, a lifting cylinder, and a side curtain-type protective device; the propulsion system is composed of a propulsion track and a propulsion cylinder; One end of the truss is mounted on the beam body of the main beam, and the other end is mounted on the propulsion track of the propulsion system, and the truss moves along the propulsion track under the propulsion action of the propulsion cylinder; The crane is installed on the truss and is used for hoisting steel bar parts; The retractable roof and the side curtain protection equipment are installed on the truss to maintain the poured concrete; The material distribution system is installed on the truss; The lifting cylinder is used to control the lifting and lowering of the truss. In the pouring state, the lifting cylinder lifts up the truss, and the truss does not contact the propulsion track; In the main beam, the guide rail is provided with an inverted T-shaped slide groove along its length direction; A receiving groove is provided at the bottom of the inverted T-shaped slide groove of the guide rail, and the receiving groove includes a vertically arranged linear receiving groove and an L-shaped receiving groove connected to the linear receiving groove at one end, and the L-shaped receiving groove is connected to the inverted T-shaped slide groove at one end away from the linear receiving groove; A first extrusion plate is arranged in the linear receiving groove, a sponge block soaked with lubricating oil is placed under the first extrusion plate, the upper surface of the first extrusion plate is connected to the second extrusion plate through a spring, the second extrusion plate is arranged obliquely, and a lower side thereof is flush with the bottom surface of the inverted T-shaped slide groove, as the beam body moves along the guide rail, the beam body squeezes the second extrusion plate, and then the first extrusion plate squeezes the sponge block, and the lubricating oil in the sponge block will reach the surface of the inverted T-shaped slide groove along the L-shaped receiving groove to lubricate the beam body and the guide rail.

2. The self-propelled cast-in-place box girder integrated bridge-building machine according to claim 1, characterized in that: The crossbeams on both sides are connected by pins.

3. The self-propelled cast-in-place box girder integrated bridge-building machine according to claim 1, characterized in that: The outer mold system includes a template corresponding to each of the beams and an adjusting screw rod. The template includes a bottom mold and a side mold. The bottom mold is installed on the corresponding beam. One end of the adjusting screw rod is connected to the template beam, and the other end is used to support the side mold. The angle of the side mold is adjusted by adjusting the length of the adjusting screw rod.

4. The self-propelled cast-in-situ box girder integrated bridge-building machine according to claim 1, characterized in that: The concrete placing system is composed of a concrete placing machine and a pump pipe. There are two concrete placing machines installed on the truss. The pump pipe is used to transport concrete from the pump truck to the concrete placing machine.

5. The self-propelled cast-in-place box girder integrated bridge-building machine according to claim 1, characterized in that: The propulsion track is installed on the cast beam section.

6. The self-propelled cast-in-place box girder integrated bridge-building machine according to claim 1, characterized in that: There are four propulsion cylinders, which are symmetrically arranged on both sides of the propulsion track.

7. The self-propelled cast-in-situ box girder integrated bridge-building machine according to claim 1, characterized in that: A plurality of inverted T-shaped sliding blocks are arranged at intervals along the length direction of the bottom of the beam body, and the inverted T-shaped sliding blocks can be movably clamped in the inverted T-shaped sliding groove, so that the beam body can be movably arranged on the guide rail without falling off; a plurality of limiting grooves are arranged at intervals in the inverted T-shaped sliding groove, and a ball is placed in each of the limiting grooves.

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