Box girder reinforcement cage binding mould chassis

Abstract

The invention discloses a box girder reinforcement cage binding mould chassis which comprises a chassis body which is of a rectangular frame structure formed by welding a chassis short beam and a chassis long beam. The bottom assembly is mounted at the bottom of the chassis body; the bottom assembly comprises a height adjusting device and a walking device; the height adjusting device comprises a mounting base plate, a hydraulic cylinder is fixed to the upper surface of the mounting base plate, the upper portion of the hydraulic cylinder is connected with an adapter plate, and the adapter plate is connected with the bottom of the chassis body; a threaded hole and a threaded rod are arranged on the mounting base plate, a driving gear is mounted at the end, extending to the lower surface of the mounting base plate, of the threaded rod, and the worm gear is meshed with the driving gear; the shell is connected with the mounting base plate; the driving gear, the worm gear and the worm gear driving device are positioned in the shell; the walking device comprises a box body and rolling wheels, and the rolling wheels are installed in the box body; and the box body is fixedly connected with the shell. According to the chassis, the mobility and the construction flexibility of equipment can be improved, the terrain adaptability is enhanced, and the positioning precision is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of auxiliary equipment for box girder reinforcement construction, and in particular relates to a chassis for a box girder reinforcement skeleton binding fixture. Background Technology

[0002] Box girders are a common structural form in bridge engineering, possessing advantages such as good load-bearing capacity, light weight, and high bending stiffness, and are widely used in the construction of various types of bridges, including highways and railways. The internal structure of a box girder typically includes a web, top plate, and bottom plate, and a reinforcing steel cage is required inside to enhance the structural strength and stability of the box girder. In actual construction, to ensure the dimensional accuracy and positioning precision of the reinforcing steel cage, specialized construction auxiliary equipment, namely a reinforcing steel cage binding jig, is usually required.

[0003] A rebar cage binding jig is a specialized support device used to assist in the processing and positioning of rebar cages. By restricting the size, shape, and relative position of the rebar cage within the jig, workers can efficiently and accurately complete the arrangement, binding, and welding of the rebars. Especially in box girder structures, due to their complex structural form and dense rebar arrangement, using high-precision jigs not only helps improve construction quality but also reduces structural safety hazards caused by rebar displacement and misalignment.

[0004] While existing tying jigs have improved the efficiency of rebar cage tying to some extent, they still have significant technical limitations. First, most of the rebar cage tying jigs used in existing technologies are fixed structures that cannot be moved after installation. Once the rebar cage tying work in one area is completed, if work needs to continue in other areas, the entire tied rebar cage must be removed from the jig as a whole, and then the jig must be disassembled or reassembled. This results in cumbersome procedures, low site transfer efficiency, and seriously affects construction progress and labor costs.

[0005] Secondly, due to the large size of the jig structure, a high degree of flatness of the ground is required. However, in actual construction sites, the ground is difficult to keep perfectly level. Most existing rebar cage binding jigs have rigid connections at the bottom structure and lack effective height adjustment mechanisms, making it impossible to flexibly adjust them according to ground elevation differences. This limits the applicability of the jig in complex construction environments and indirectly affects the structural stability and installation accuracy of the finished rebar cage. Summary of the Invention

[0006] The purpose of this invention is to provide a chassis for a box girder reinforcement cage binding fixture, so as to solve the significant shortcomings of existing box girder reinforcement cage binding fixtures in terms of mobility and height adjustment capabilities.

[0007] The technical solution of this invention to solve the above-mentioned technical problems is as follows: A box girder reinforcement cage binding jig chassis, comprising: a chassis body, the chassis body being a rectangular frame structure welded from chassis short beams and chassis long beams; a bottom assembly, the bottom assembly being installed at the bottom of the chassis body; the bottom assembly including a height adjustment device and a walking device; the height adjustment device including a mounting base plate, a hydraulic cylinder fixed on the upper surface of the mounting base plate, an adapter plate connected to the upper part of the hydraulic cylinder, and the adapter plate being connected to the bottom of the chassis body; the mounting base plate... The device has two threaded holes, in which a threaded rod is installed. A drive gear is installed at the end of the threaded rod extending to the lower surface of the mounting base. A worm gear meshes with the drive gear. The worm gear drive device includes a worm and a drive motor. The worm is connected to the power output shaft of the drive motor and meshes with the worm gear. The housing is connected to the mounting base, and the drive gear, worm gear, and worm gear drive device are located inside the housing. The walking device includes a housing and rollers, with the rollers installed inside the housing. The housing is fixedly connected to the housing.

[0008] The box girder reinforcement cage binding jig chassis of the present invention, as described above, further includes a worm gear drive device, one end of which is connected to the drive motor, and the other end of which is fixedly connected to the lower surface of the mounting base plate.

[0009] The box girder reinforcement cage binding jig base of the present invention further includes a rectangular mounting base plate with two threaded holes at the first diagonal end and a guide positioning hole at the second diagonal end. One end of the first guide positioning device is fixedly connected to the adapter plate, and the other end of the first guide positioning device is inserted into the guide positioning hole.

[0010] The box girder reinforcement cage binding jig base of the present invention, as described above, further includes a motor support located at the second diagonal end of the mounting base plate, and the motor support being positioned opposite the first guide positioning device.

[0011] The box girder reinforcement cage binding jig base of the present invention further includes a second guide positioning device. The second guide positioning device includes an outer sleeve and an inner core. The outer sleeve is fixed to the upper surface of the mounting base plate, and the position of the outer sleeve corresponds to the position of the motor support. One end of the inner core is fixedly connected to the adapter plate, and the inner core is inserted into the outer sleeve.

[0012] The box girder reinforcement cage binding jig chassis described above further includes a second guiding and positioning device. The second guiding and positioning device includes an outer sleeve and an inner core. The inner core is fixed to the upper surface of the mounting base plate, and the position of the inner core corresponds to the position of the motor support. One end of the outer sleeve is fixedly connected to the adapter plate, and the outer sleeve is sleeved on the outside of the inner core.

[0013] The present invention provides a box girder reinforcement cage binding jig base as described above. Further, the length of the base short beam is less than the length of the base long beam, and both the base short beam and the base long beam are I-beams.

[0014] The box girder reinforcement cage binding jig chassis described above further includes a control device, which includes a hydraulic cylinder controller and a motor controller. The hydraulic cylinder controller controls the extension and retraction state of the hydraulic cylinder, and the motor controller controls the operation state of the drive motor.

[0015] The beneficial effects of this invention are: 1. Improve the mobility and construction flexibility of the equipment; the jig chassis can be moved as a whole through the walking device, breaking the limitations of the traditional fixed jig, significantly improving the efficiency of site transfer during the construction of the box girder steel skeleton, and saving manpower and time costs.

[0016] 2. Enhanced terrain adaptability and improved positioning accuracy: Equipped with a height adjustment device combining hydraulic cylinders and threaded rods, the support height of the jig can be precisely adjusted according to the undulations of the ground at the construction site, ensuring the overall level of the jig and improving the accuracy of binding and positioning.

[0017] 3. It has a self-locking function to improve working stability; the worm gear-worm structure has good self-locking performance, which can effectively prevent height deviation caused by vibration or hydraulic pressure relief, ensure that the chassis height does not change during the binding process, and ensure structural stability.

[0018] 4. The guide positioning design prevents deviation and improves structural accuracy; through the first and second guide positioning devices, the alignment of the adapter plate and the mounting base plate is ensured during the lifting process, avoiding structural tilting or misalignment caused by unilateral deformation of the hydraulic cylinder or thrust eccentricity. Attached Figure Description

[0019] The advantages of the present invention, both above and / or other aspects, will become clearer and more readily understood through the following detailed description taken in conjunction with the accompanying drawings, which are merely illustrative and do not limit the invention, wherein: Figure 1 Schematic diagram of the jig base for binding the steel reinforcement cage of a box girder; Figure 2A partially enlarged schematic diagram of the jig base for binding the steel reinforcement cage of a box girder; Figure 3 This is a schematic diagram of the base of a box girder reinforcement cage binding fixture according to an embodiment of the present invention; Figure 4 A partially enlarged schematic diagram of the jig base for binding the steel reinforcement cage of a box girder; Figure 5 This is a schematic diagram of a height adjustment device and a walking device according to an embodiment of the present invention; Figure 6 This is a cross-sectional schematic diagram of a height adjustment device and a walking device according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the upper part of a height adjustment device according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the upper part of a height adjustment device according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the bottom of a height adjustment device according to an embodiment of the present invention.

[0020] The attached diagram lists the components represented by each number as follows: 10. Chassis body; 11. Chassis short beam; 12. Chassis long beam; 20. Bottom assembly; 30. Height adjustment device; 31. Mounting base plate; 32. Housing; 33. Threaded rod; 34. Drive gear; 35. Worm gear; 36. Worm gear drive device; 361. Drive motor; 362. Worm; 363. Motor support; 37. First guide positioning device; 38. Second guide positioning device; 39. Adapter plate; 40. Walking device; 41. Box body; 42. Roller; 50. Hydraulic cylinder; 60. Extension frame; 70. Rebar support; 80. Top rebar construction platform. Detailed Implementation

[0021] In the following description, embodiments of the box girder reinforcement cage binding jig base of the present invention will be described with reference to the accompanying drawings.

[0022] The embodiments described herein are specific implementations of the present invention, used to illustrate the concept of the invention, and are illustrative and exemplary, and should not be construed as limiting the implementation or scope of the invention. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0023] The accompanying drawings in this specification are schematic diagrams to aid in illustrating the concept of the invention, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly demonstrate the structure of the components in the embodiments of the invention, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0024] Combination Figures 1 to 9 This invention describes a box girder reinforcement cage binding jig base plate according to an embodiment of the present invention, which includes: The chassis body 10 is a rectangular frame structure welded together using chassis short beams 11 and chassis long beams 12; the bottom assembly 20 is installed on the bottom of the chassis body 10; the bottom assembly 20 includes a height adjustment device 30 and a walking device 40; in such cases... Figure 4 In one specific embodiment shown, the base of the box girder reinforcement cage binding jig has a shorter base beam 11 than a longer base beam 12. Both the short base beam 11 and the long base beam 12 are I-beams. By using a rectangular base structure, the dimensional requirements of the box girder reinforcement in both length and width directions can be accommodated, facilitating reinforcement binding. The use of I-beams provides better base strength and prevents deformation under heavy pressure.

[0025] The height adjustment device 30 includes a mounting base 31. A hydraulic cylinder 50 is fixed to the upper surface of the mounting base 31. An adapter plate 39 is connected to the upper part of the hydraulic cylinder 50. The adapter plate 39 is connected to the bottom of the chassis body 10. The adapter plate and the chassis base plate can be connected by welding, or the adapter plate and the chassis body can be connected by bolts for detachable connection, which has better maintenance. The mounting base 31 is provided with two threaded holes, and a threaded rod 33 is installed in the threaded holes. The threaded rod 33 extends to the end of the lower surface of the mounting base 31. The device includes a drive gear 34, with a worm gear 35 meshing with it. A worm gear drive device 36 includes a worm 362 and a drive motor 361, with the worm 362 connected to the power output shaft of the drive motor 361 and meshing with the worm gear 35. A housing 32 is connected to a mounting base 31, and the drive gear 34, worm gear 35, and worm gear drive device 36 are located within the housing 32. The worm described in this embodiment has helical teeth on its exterior that are adapted to the worm gear, and the rotation of the worm can drive the worm gear to rotate. The walking device 40 includes a housing 41 and rollers 42, with the rollers 42 installed inside the housing 41. The housing 41 is fixedly connected to the housing 32. In a specific embodiment of a box girder steel reinforcement skeleton binding jig chassis, a control device is also included, comprising a hydraulic cylinder controller and a motor controller. The hydraulic cylinder controller controls the extension and retraction state of the hydraulic cylinder 50. The motor controller controls the operating state of the drive motor 361, that is, it controls the rotation direction of the drive motor, and thus controls the relative rise or fall height of the threaded rod and the mounting plate.

[0026] The usage process of the box girder reinforcement cage binding jig chassis in the above embodiment of the present invention is as follows: At least four bottom assemblies are installed on the bottom of the chassis, respectively located near the four apex corners of the rectangular structure chassis. The chassis (and the box girder reinforcement cage binding jig) are moved to the set position on the construction site by a walking device. When the flatness of the ground cannot meet the requirements for reinforcement binding, the height of the chassis is adjusted. First, the height adjustment of the hydraulic cylinder drives the corresponding position of the chassis to adjust its position. Then, the operation of the worm gear drive device drives the worm gear and drive gear to rotate, and then the threaded rod rotates in the threaded hole of the mounting plate, so that the threaded rod abuts against the adapter plate. At this time, the reinforcement binding jig can be used to bind the box girder reinforcement cage. Since the box girder reinforcement cage binding period is relatively long (usually more than 15 days), the hydraulic cylinder can maintain pressure as needed, or it can release pressure and use the threaded rod to lift the adapter plate. At this time, it is not necessary to maintain the operation of the auxiliary device of the hydraulic cylinder, thereby saving power and avoiding chassis position movement caused by slow pressure release of the hydraulic cylinder. Because the worm gear and worm have self-locking mechanical properties, the threaded rod will not rotate and thus its height position will not change.

[0027] In a preferred embodiment of a box girder reinforcement cage binding jig, such as Figure 6 , Figure 7 and Figure 8 As shown, the worm gear drive device 36 also includes a motor support 363. One end of the motor support 363 is connected to the drive motor 361, and the other end of the motor support 363 is fixedly connected to the lower surface of the mounting base plate 31. Fixing the drive motor with the motor support can prevent the drive motor from shifting, thereby preventing the worm from failing to drive the worm gear.

[0028] In a preferred embodiment of a box girder reinforcement cage binding jig, such as Figure 6 , Figure 7 and Figure 8 As shown, the mounting base plate 31 has a rectangular structure, with two threaded holes at the first diagonal end and a guide positioning hole at the second diagonal end. One end of the first guide positioning device 37 is fixedly connected to the adapter plate 39, and the other end of the first guide positioning device 37 is inserted into the guide positioning hole. In one specific embodiment, the first guide positioning device is a round steel rod. By setting the first guide positioning device, tilting or misalignment between the adapter plate and the housing can be avoided when the chassis height is adjusted by extending or retracting the hydraulic cylinder.

[0029] In a preferred embodiment of a box girder reinforcement cage binding jig, such as Figure 6 , Figure 7 and Figure 8As shown, the motor support 363 is located at the second diagonal end of the mounting base 31, and is positioned opposite the first guide positioning device 37. Since the first guide positioning device needs to pass through the insertion hole provided on the mounting base, the drive motor support cannot be installed at the corresponding position on the lower surface of the mounting base.

[0030] Conversely, since a motor mounting bracket is installed on the lower surface of the mounting base, it is impossible to install a guide positioning device with the same structure as the first guide positioning device at the corresponding position on the upper surface of the base. Therefore, the above embodiment is further improved, such as... Figure 6 , Figure 7 and Figure 9 As shown, it also includes a second guide positioning device 38, which includes an outer sleeve and an inner core. The outer sleeve is fixed to the upper surface of the mounting base 31, and the position of the outer sleeve corresponds to the position of the motor support 363. One end of the inner core is fixedly connected to the adapter plate 39, and the inner core is inserted into the outer sleeve. By setting the second guide positioning device, it is possible to further avoid tilting or misalignment between the adapter plate and the housing when the chassis height is adjusted by the extension and retraction of the hydraulic cylinder.

[0031] Because the box girder reinforcement cage is large in size, and the base plate size is difficult to directly match the box girder reinforcement cage, further improvements to the above embodiments are needed, such as... Figure 1 and Figure 2 As shown, it also includes an extension frame 60. The length of the extension frame 60 is equal to that of the long beam 12 of the chassis, and the width of the extension frame 60 is greater than the length of the short beam 11 of the chassis. The extension frame 60 is fixed to the upper part of the chassis body 10. The wider width of the extension frame can accommodate the needs of box girder reinforcement binding. A fixed reinforcement support 70 is installed on the upper part of the extension frame, and a top reinforcement construction platform 80 is set on the outer side of the top of the reinforcement support 70, which can facilitate the construction of the box girder reinforcement skeleton.

[0032] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the invention to achieve the purpose of the invention.

Claims

1. A base plate for binding the reinforcing steel skeleton of a box girder, characterized in that, include: The chassis body (10) is a rectangular frame structure welded from chassis short beams (11) and chassis long beams (12); the bottom assembly (20) is installed at the bottom of the chassis body (10); the bottom assembly (20) includes a height adjustment device (30) and a walking device (40); the height adjustment device (30) includes a mounting base plate (31), a hydraulic cylinder (50) is fixed on the upper surface of the mounting base plate (31), an adapter plate (39) is connected to the upper part of the hydraulic cylinder (50), and the adapter plate (39) is connected to the bottom of the chassis body (10); the mounting base plate (31) is provided with two threaded holes, and a threaded rod (33) is installed in the threaded holes. A drive gear (34) is installed at the end extending to the lower surface of the mounting base plate (31), and a worm gear (35) is meshed with the drive gear (34); the worm gear drive device (36) includes a worm (362) and a drive motor (361), the worm (362) is connected to the power output shaft of the drive motor (361), and the worm (362) is meshed with the worm gear (35); the housing (32) is connected to the mounting base plate (31), and the drive gear (34), worm gear (35) and worm gear drive device (36) are located inside the housing (32); the walking device (40) includes a housing (41) and a roller (42), the roller (42) is installed inside the housing (41); the housing (41) is fixedly connected to the housing (32).

2. The box girder reinforcement cage binding jig base plate according to claim 1, characterized in that, The worm gear drive device (36) also includes a motor support (363), one end of which is connected to the drive motor (361), and the other end of which is fixedly connected to the lower surface of the mounting base plate (31).

3. The box girder reinforcement cage binding jig base plate according to claim 2, characterized in that, The mounting base plate (31) has a rectangular structure and two threaded holes are provided at the first diagonal end of the mounting base plate (31); a guide positioning hole is provided at the second diagonal end of the mounting base plate (31); one end of the first guide positioning device (37) is fixedly connected to the adapter plate (39), and the other end of the first guide positioning device (37) is inserted into the guide positioning hole.

4. The box girder reinforcement cage binding jig base plate according to claim 3, characterized in that, The motor support (363) is located at the second diagonal end of the mounting base (31), and the motor support (363) is positioned opposite to the first guide positioning device (37).

5. The box girder reinforcement cage binding jig base plate according to claim 4, characterized in that, It also includes a second guide positioning device (38), which includes an outer sleeve and an inner core. The outer sleeve is fixed to the upper surface of the mounting base plate (31), and the position of the outer sleeve corresponds to the position of the motor support (363). One end of the inner core is fixedly connected to the adapter plate (39), and the inner core is inserted into the outer sleeve.

6. The box girder reinforcement cage binding jig base plate according to claim 4, characterized in that, It also includes a second guide positioning device (38), which includes an outer sleeve and an inner core. The inner core is fixed on the upper surface of the mounting base plate (31), and the position of the inner core corresponds to the position of the motor support (363). One end of the outer sleeve is fixedly connected to the adapter plate (39), and the outer sleeve is sleeved on the outside of the inner core.

7. The box girder reinforcement cage binding jig base plate according to claim 5 or 6, characterized in that, The length of the chassis short beam (11) is less than the length of the chassis long beam (12), and the chassis short beam (11) and the chassis long beam (12) are I-beams.

8. The box girder reinforcement cage binding jig base plate according to claim 7, characterized in that, It also includes a control device, which includes a hydraulic cylinder controller and a motor controller. The hydraulic cylinder controller controls the extension and retraction state of the hydraulic cylinder (50), and the motor controller controls the operation state of the drive motor (361).

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