Main truss bearing mechanism and cantilever bridge fabrication machine

Abstract

The utility model relates to the technical field of bridge construction, in particular to a main truss bearing mechanism and a cantilever bridge fabrication machine, which comprises a rear upper cross beam, C-shaped hanging legs, a main hanging bracket, a main truss, a front upper cross beam and reverse jacking wheels, lateral wheels A and lateral wheels B are arranged on the two sides of the lower end and the two sides of the upper end of the main truss correspondingly, and four supporting rods are arranged between the main truss and the C-shaped hanging legs. According to the main truss bearing mechanism and the cantilever bridge fabrication machine, the pin shaft sleeve at the hinged position of the main truss and the main hanging bracket is matched with the pin shaft, the lateral wheels are arranged on the two sides of the upper end and the lower end of the main truss, and the supporting rods are arranged between the main truss and the C-shaped hanging legs, so that the lateral rigidity of the main truss can be effectively improved, and the bearing capacity of the main truss is improved; and meanwhile, the functions of ensuring the walking directivity and preventing the walking deviation during walking can be achieved, and the safety is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to a main truss bearing mechanism and a cantilever bridge building machine. Background Technology

[0002] A cantilever bridge-building machine mainly consists of load-bearing members, a formwork system, a hydraulic system, an intelligent system, a platform protection system, and a retraction system. The load-bearing members bear the concrete and construction loads during use. Most of the load-bearing members are designed below the beam surface, and the force is then transferred to the surface through the structure. The main load-bearing members include the rear upper crossbeam, C-shaped hanging legs, main hanger, main truss, front upper crossbeam, and anti-roll wheels.

[0003] The two ends of the rear upper crossbeam are connected to the C-shaped hanging legs. The C-shaped hanging legs are located on the side of the middle part of the main truss of the bridge-building machine. The upper end is connected to the rear upper crossbeam through the end flange, and the lower end contacts the main hanger during travel, bearing and transmitting the self-weight of the bridge-building machine below the beam surface during travel. The rear upper crossbeam is connected to the main truss through the main hanger. During the pouring process, the load of the main truss is transferred to the beam surface through the main hanger. The main truss adopts the form of a truss, with the front part connected to the front upper crossbeam, the middle part hinged to the main hanger, and the rear part supported on the poured concrete by the anti-top wheel.

[0004] The existing device has a hinge connection between the main truss and the main hanger, which is only connected by hinge plates on both sides. Furthermore, the main truss has insufficient lateral stiffness. In addition, the main truss is suspended on the side, which makes it easy for the main truss to be subjected to eccentric loads in the lateral direction, causing the main truss to deform laterally and eventually fail. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a main truss bearing mechanism and a cantilever bridge-building machine, which improves the hinge stiffness between the main truss and the main hanger, as well as the lateral stiffness of the main truss, reduces the lateral deformation of the main truss, and improves safety performance.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a main truss bearing mechanism, including a rear upper crossbeam, C-shaped hanging legs, a main hanger, a main truss, a front upper crossbeam, and an anti-top wheel. The main truss and the main hanger are hinged together by a hinge mechanism. Side wheels A are provided on both sides of the lower end of the main truss. Four support rods are provided between the main truss and the C-shaped hanging legs. One end of two of the support rods is supported at both ends of the main truss, and the other ends of the two support rods are supported on the outer sides of the C-shaped hanging legs. One end of the other two support rods is supported at the middle of the main truss, and the other ends of the other two support rods are supported on the inner sides of the C-shaped hanging legs.

[0009] Preferably, lateral wheels B are provided on both sides of the upper end of the main truss.

[0010] Preferably, the hinge mechanism includes pin sleeve A and pin sleeve B, which are respectively fixedly installed on the main truss and the main hanger, and a pin passes through between pin sleeve A and pin sleeve B.

[0011] Preferably, the support rods located on the same side can be connected to form a truss.

[0012] Preferably, a distance adjustment mechanism is provided between the side wheel A and the side wheel B and the main truss.

[0013] Preferably, an elastic mechanism that communicates with the distance adjustment mechanism is further provided between the lateral wheel A and the lateral wheel B and the main truss.

[0014] A cantilever bridge-building machine is also provided, including the aforementioned main truss bearing mechanism.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, this utility model provides a main truss bearing mechanism and a cantilever bridge building machine, which has the following beneficial effects:

[0017] The main truss bearing mechanism and cantilever bridge-building machine effectively improve the lateral stiffness and load-bearing capacity of the main truss by setting pin sleeves and pin-shafts at the hinge joints of the main truss and the main hanger, providing lateral wheels on both sides of the upper and lower ends of the main truss, and setting support rods between the main truss and the C-shaped hanging legs. At the same time, it can also ensure the directionality of movement and prevent deviation, greatly improving safety. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall side view of the present invention.

[0019] Figure 2 This is a schematic diagram of the overall front view of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the C-shaped hanging leg, main truss, and support rod of this utility model.

[0021] The following are labels in the attached diagram: 1. Rear upper crossbeam; 2. C-type hanging leg; 3. Main hanger; 4. Main truss; 5. Front upper crossbeam; 6. Anti-top wheel; 7. Pin sleeve A; 8. Pin sleeve B; 9. Side wheel A; 10. Side wheel B; 11. Support rod; 12. Pin. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example:

[0024] Please see Figure 1-3 A main truss load-bearing mechanism includes a rear upper crossbeam 1, C-shaped hanging legs 2, a main hanger 3, a main truss 4, a front upper crossbeam 5, and an anti-top wheel 6. The main truss 4 and the main hanger 3 are hinged together by a hinge mechanism to improve the hinge stiffness. Lateral wheels A9 are provided on both sides of the lower end of the main truss 4. Four support rods 11 are provided between the main truss 4 and the C-shaped hanging legs 2. One end of two of the support rods 11 is supported at both ends of the main truss 4, and the other end of the other two support rods 11 are respectively supported... On both sides of the C-shaped hanging leg 2, one end of each of the other two support rods 11 is supported in the middle of the main truss 4, and the other ends of the other two support rods 11 are supported on both sides of the C-shaped hanging leg 2. Lateral wheels A9 are provided on both sides of the lower end of the main truss 4 to resist the lateral load transmitted from the side hanging points and prevent the main truss 4 from lateral deformation and failure. By setting four support rods 11, the ends and middle sides of the main truss 4 are supported, which can effectively improve the lateral stiffness of the main truss 4.

[0025] Furthermore, lateral wheels B10 are provided on both sides of the upper end of the main truss 4. The lateral wheels B10 on both sides of the upper end of the main truss 4 work together with the lateral wheels A9 to ensure the directionality of movement, prevent deviation, and prevent the main truss 4 from being subjected to large lateral loads, which could cause lateral deformation and failure of the main truss 4.

[0026] Furthermore, the hinge mechanism includes pin sleeves A7 and B8, which are respectively fixedly installed on the main truss 4 and the main hanger 3. A pin 12 passes through the pin sleeves A7 and B8 to improve the hinge stiffness. Furthermore, the hinge mechanism can also be configured as a bearing structure.

[0027] Furthermore, the support rods 11 located on the same side can be connected to form a truss.

[0028] Furthermore, a distance adjustment mechanism is provided between the side wheel A9 and the side wheel B10 and the main truss 4. The distance adjustment mechanism may include one of a hydraulic cylinder or an electric cylinder.

[0029] Furthermore, an elastic mechanism communicating with the distance adjustment mechanism is added between the side wheel A9 and the side wheel B10 and the main truss 4. The elastic mechanism may include a spring and a guide sleeve, or simply use a spring, preferably using a combination of a spring and a guide sleeve.

[0030] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0031] It should be readily understood that the terms “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on top of something” but also “on top of something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0032] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A main truss bearing mechanism, comprising a rear upper crossbeam (1), C-shaped hanging legs (2), a main hanger (3), a main truss (4), a front upper crossbeam (5), and an anti-top wheel (6), characterized in that: The main truss (4) and the main hanger (3) are hinged together by a hinge mechanism. Side wheels A (9) are provided on both sides of the lower end of the main truss (4). Four support rods (11) are provided between the main truss (4) and the C-shaped hanging leg (2). One end of two of the support rods (11) is supported at the ends of the main truss (4), and the other end of the two support rods (11) is supported on the outer sides of the C-shaped hanging leg (2). One end of the other two support rods (11) is supported in the middle of the main truss (4), and the other end of the other two support rods (11) is supported on the inner sides of the C-shaped hanging leg (2).

2. The main truss bearing mechanism according to claim 1, characterized in that: Side wheels B (10) are provided on both sides of the upper end of the main truss (4).

3. The main truss bearing mechanism according to claim 1, characterized in that: The hinge mechanism includes pin sleeve A (7) and pin sleeve B (8) which are respectively fixedly installed on the main truss (4) and the main hanger (3), and a pin (12) passes through between the pin sleeve A (7) and the pin sleeve B (8).

4. The main truss bearing mechanism according to claim 1, characterized in that: The support rods (11) located on the same side can be connected to form a truss.

5. The main truss bearing mechanism according to claim 2, characterized in that: A distance adjustment mechanism is provided between the side wheel A (9) and the side wheel B (10) and the main truss (4).

6. The main truss bearing mechanism according to claim 5, characterized in that: An elastic mechanism connected to the distance adjustment mechanism is also added between the lateral wheel A (9) and the lateral wheel B (10) and the main truss (4).

7. A cantilever bridge-building machine, characterized in that: Includes the main truss bearing mechanism as described in any one of claims 1 to 6.

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