Walking mechanism of bridge fabrication machine

Abstract

The utility model relates to a bridge fabrication machine walking mechanism which comprises a walking beam, a supporting wheel and a driving mechanism. The main beam is pressed on the riding wheels; a wing plate is arranged on the side surface of the main beam; the auxiliary change gear assembly comprises a mounting seat, an auxiliary oil cylinder, an elastic piece and an auxiliary change gear; the mounting seat is movably mounted on the walking beam in the width direction of the walking beam; one end of the auxiliary oil cylinder is connected with the walking beam, and the other end abuts against the installation base and used for pushing the installation base to move towards the outer side of the walking beam. The elastic piece is connected between the mounting seat and the walking beam and has elastic potential energy for driving the mounting seat to move towards the center of the walking beam; the auxiliary change gear is connected to the mounting seat, and the auxiliary change gear is pressed on the wing plate; the deviation rectifying assembly comprises a deviation rectifying supporting leg and a deviation rectifying oil cylinder; the deviation rectifying supporting legs are installed on the bridge body, and the deviation rectifying oil cylinders are connected to the deviation rectifying supporting legs and abut against the main beam. The main beam can be vertically hoisted, and the installation difficulty of the main beam is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bridge building machine, in particular to a walking mechanism of bridge building machine. BACKGROUND

[0002] With the development of passenger dedicated railway line, the construction mode of "bridge instead of road" of high-speed railway in China makes the proportion of bridges larger and larger, and continuous beam bridge is a larger category of bridges. There are many construction methods of continuous beam bridge, among which the cantilever pouring construction method by bridge building machine is gradually popularized.

[0003] The bridge building machine mainly moves to the bridge body which has been poured to serve as support, pours new beam segments along the length direction of the bridge to extend gradually, and finally completes the construction of continuous beam. The walking mechanism of the bridge building machine generally moves in the way of alternating walking of the main beam and the walking beam. From the structure, the edge of the main beam is generally provided with a wing plate extending along the length direction thereof, the upper side of the wing plate is provided with an auxiliary hanger wheel, and the two sides of the main beam are both provided with the auxiliary hanger wheels arranged oppositely. The distance between the auxiliary hanger wheels arranged oppositely is generally smaller than the width of the wing plate, so the main beam cannot be directly hoisted to pass through the auxiliary hanger wheels arranged oppositely. In the traditional construction, the wing plate installs the main beam in the horizontal translation way. However, there is a supporting roller under the wing plate for supporting the main beam, and the gap between the supporting roller and the auxiliary hanger wheel is generally only slightly larger than the thickness of the wing plate. The horizontal translation installation way needs to move the wing plate of the main beam horizontally along the gap for a long distance until passing through all the auxiliary hanger wheels, so the construction difficulty of the horizontal translation installation way is also relatively large. CONTENT OF THE UTILITY MODEL

[0004] Therefore, it is necessary to provide a walking mechanism of bridge building machine, and the specific technical scheme is as follows.

[0005] A walking mechanism of bridge building machine, comprising:

[0006] A walking beam, a supporting roller is installed on the top of the walking beam;

[0007] A main beam, the main beam is overlaid on the supporting roller; a wing plate is arranged on the side of the main beam;

[0008] An auxiliary hanger wheel assembly, comprising a mounting seat, an auxiliary oil cylinder, an elastic member and an auxiliary hanger wheel; the mounting seat is movably installed on the walking beam along the width direction of the walking beam; one end of the auxiliary oil cylinder is connected with the walking beam, and the other end is abutted with the mounting seat, for pushing the mounting seat to move towards the outside of the walking beam; the elastic member is connected between the mounting seat and the walking beam, and has an elastic potential for driving the mounting seat to move towards the center of the walking beam; the auxiliary hanger wheel is connected to the mounting seat, and the auxiliary hanger wheel is overlaid on the wing plate;

[0009] The deviation rectifying assembly comprises a deviation rectifying leg and a deviation rectifying oil cylinder; the deviation rectifying leg is mounted on the bridge body, and the deviation rectifying oil cylinder is connected to the deviation rectifying leg and abuts against the main beam.

[0010] Further, the walking beam edge is provided with a limiting plate; the mounting seat comprises a sliding seat and a mounting seat body, the walking beam is provided with a sliding groove matched with the sliding seat; the mounting seat body is connected with the sliding seat, and a gap is formed between the mounting seat body and the sliding seat, so that the mounting seat body is located above the limiting plate and the sliding seat is located inside the limiting plate; one end of the elastic member is connected with the limiting plate, and the other end is connected with the sliding seat.

[0011] Further, the sliding groove is provided with a C-shaped channel steel on both sides; the side surface of the sliding seat is provided with a protrusion, and the protrusion is slidably inserted into the C-shaped channel steel.

[0012] Further, one side of the sliding seat facing the limiting plate is provided with a mounting groove, and the elastic member extends into the mounting groove.

[0013] Further, the two sides of the main beam are provided with symmetrically arranged auxiliary idler wheel assemblies.

[0014] Further, one side of the limiting plate facing the mounting seat is detachably provided with a limiting block.

[0015] Further, a plurality of through holes are arranged on the limiting plate, a mounting rod is threadedly connected to the limiting block, and the mounting rod is connected with a nut after penetrating through the through hole.

[0016] Further, the auxiliary idler wheel assembly further comprises a connecting plate; the mounting seat is provided with a rotating shaft extending along the width direction of the walking beam, and the connecting plate is rotatably mounted on the rotating shaft; two auxiliary idler wheels are rotatably connected to the connecting plate and are distributed on both sides of the rotating shaft.

[0017] Further, the two sides of the main beam are provided with symmetrically distributed deviation rectifying assemblies.

[0018] Further, the main beam is further provided with a conversion leg, the conversion leg is connected with the main beam, and the bottom of the conversion leg is provided with a conversion oil cylinder, so that the conversion oil cylinder is elongated to support the walking beam.

[0019] Beneficial effects: the walking mechanism of the bridge building machine, when assembling the main beam, the installation seat is moved by the auxiliary oil cylinder, the spacing between the auxiliary hanging wheels arranged oppositely can be increased to be greater than the width of the wing plate, so that the main beam can be hoisted between the vertical direction, the auxiliary hanging wheels pass through two groups of oppositely arranged auxiliary hanging wheels, the oil cylinder is retracted after installation, the installation seat is moved back under the action of the elastic element, the spacing of the two groups of auxiliary hanging wheels is less than the width of the wing plate, the installation of the main beam is completed, and the installation difficulty of the main beam is reduced. In addition, during walking, under the action of the elastic element, the auxiliary hanging wheels are ensured to extend above the wing plate and provide a certain length of adjusting stroke in the width direction for the auxiliary hanging wheels, so that the walking direction of the main beam is adjusted by driving the main beam to move the deviation correction assembly. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0021] Figure 1 It is a whole schematic view of the walking mechanism;

[0022] Figure 2 It is a schematic view of the walking mechanism before assembling the main beam;

[0023] Figure 3 It is Figure 1 It is an enlarged schematic view of the A area in the middle;

[0024] Figure 4 It is a partial exploded schematic view of the auxiliary hanging wheel assembly and the walking beam.

[0025] Explanation of reference numerals: 1, walking beam; 2, main beam; 3, auxiliary hanging wheel assembly; 4, deviation correction assembly; 5, conversion support leg; 6, conversion oil cylinder;

[0026] 11, limiting plate; 12, sliding groove;

[0027] 21, wing plate;

[0028] 31, installation seat; 32, auxiliary oil cylinder; 33, elastic element; 34, auxiliary hanging wheel; 35, connecting plate; 36, limiting block; 37, installation rod; 38, nut;

[0029] 311, installation seat body; 312, sliding seat;

[0030] 41, deviation correction support leg; 42, deviation correction oil cylinder. DETAILED DESCRIPTION

[0031] In order to make the above objectives, features and advantages of the present application more clear and easily understood, the detailed description of the specific embodiments of the present application is made below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways without the specific details described herein, and it is understood that similar improvements can be made without departing from the spirit and scope of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0032] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, the terms "first", "second" are only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0034] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In this application, unless otherwise explicitly specified and limited, a first feature is "on", "above", or "under" a second feature can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over", and "on top of" the second feature can mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. The first feature "below", "under", and "underneath" the second feature can mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is horizontally lower than the second feature.

[0036] It should be noted that when an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intermediate element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0037] Embodiment

[0038] Referring to Figure 1 As shown, the embodiment provides a walking mechanism of a bridge machine, which comprises a walking beam 1, a main beam 2, an auxiliary hanging wheel assembly 3, and a deviation rectifying assembly 4. The top of the walking beam 1 is provided with a supporting wheel, and the main beam 2 is overlaid on the supporting wheel. The supporting wheel supports the main beam 2 and the walking beam 1 and enables the main beam 2 and the walking beam 1 to move relatively along the length direction. The side surface of the main beam 2 is provided with a wing plate 21.

[0039] Referring to Figure 3As shown, the auxiliary wheel assembly 3 comprises a mounting seat 31, an auxiliary oil cylinder 32, an elastic member 33 and an auxiliary wheel 34. The mounting seat 31 is movably mounted on the walking beam 1 along the width direction of the walking beam 1. The auxiliary oil cylinder 32 is connected to the walking beam 1 at one end and abuts against the mounting seat 31 at the other end, and is used to push the mounting seat 31 to move towards the outside of the walking beam 1. By elongating the auxiliary oil cylinder 32, the mounting seat 31 can be pushed to move towards the outside of the walking beam 1, and the distance between the mounting seats 31 on both sides of the main beam 2 is increased. The elastic member 33 is connected between the mounting seat 31 and the walking beam 1, and has an elastic potential energy for driving the mounting seat 31 to move towards the center of the walking beam 1. When the auxiliary oil cylinder 32 is shortened, the mounting seat 31 can be driven to move towards the center of the walking beam 1 under the action of the elastic member 33, and the distance between the two opposite mounting seats 31 is shortened. The auxiliary wheel 34 is connected to the mounting seat 31, and the auxiliary wheel 34 is overlaid on the wing plate 21. By hooking the wing plate 21 with the auxiliary wheel 34, the stability of the walking wheel relative to the main beam 2 can be ensured. The auxiliary wheel 34 moves with the mounting seat 31, and when the mounting seat 31 is pushed to move outward by the auxiliary oil cylinder 32, the distance between the two opposite auxiliary wheels 34 can be increased, so that the main beam 2 can be vertically hoisted, and the wing plate 21 can pass through the two auxiliary wheels 34.

[0040] Specifically, continuing to refer to Figure 1 As shown, the deviation rectifying assembly 4 comprises a deviation rectifying leg 41 and a deviation rectifying oil cylinder 42. The deviation rectifying leg 41 is mounted on the bridge body, and the deviation rectifying oil cylinder 42 is connected to the deviation rectifying leg 41 and abuts against the main beam 2. The installation position of the main beam 2 controls the installation position of the hanging basket, and therefore the main beam 2 needs to adapt to the line type of the bridge body in front and back. By pushing the main beam 2 to move through the deviation rectifying oil cylinder 42, the angle of the forward direction of the main beam 2 can be controlled. The elastic member 33 provides space for the deviation rectification of the main beam 2 in the width direction, and ensures that the auxiliary wheels 34 before and after the deviation rectification can extend above the wing plate 21. In this embodiment, the elastic member 33 can be a spring.

[0041] It should be noted that the relative walking between the main beam 2 and the walking beam 1 along the length direction thereof is controlled by a driving device. The driving device can adopt a rack and pinion structure, or can adopt an oil cylinder pushing mechanism. The above-mentioned driving structures are prior art, and those skilled in the art can directly refer to the prior art, or can select other structure forms of driving devices.

[0042] The walking mechanism of the bridge machine provided by the embodiment can increase the distance between the two sets of auxiliary hanging wheels 34 arranged oppositely to be greater than the width of the wing plate 21 by moving the mounting seat 31 through the auxiliary oil cylinder 32 when the main beam 2 is assembled, so that the main beam 2 can be hoisted from the vertical direction, and the auxiliary hanging wheels 34 pass through the wing plate 21. After the installation is completed, the oil cylinder is retracted, and the mounting seat 31 is moved back under the action of the elastic member 33, so that the distance between the two sets of auxiliary hanging wheels 34 is less than the width of the wing plate 21, the installation of the main beam 2 is completed, and the installation difficulty of the main beam 2 is reduced. In addition, during walking, the auxiliary hanging wheels 34 extend above the wing plate 21 under the action of the elastic member 33, and provide a certain length of adjustment stroke for the auxiliary hanging wheels 34 in the width direction, so that the deviation correction assembly 4 drives the main beam 2 to move to adjust the walking direction of the main beam 2.

[0043] Specifically, referring to Figure 3 and Figure 4 , the walking beam 1 is provided with a limiting plate 11 at the edge, the mounting seat 31 comprises a sliding seat 312 and a mounting seat body 311, and the walking beam 1 is provided with a sliding groove 12 matched with the sliding seat 312; the mounting seat body 311 is connected with the sliding seat 312, and a gap is formed between the mounting seat body 311 and the sliding seat 312, so that the mounting seat body 311 is located above the limiting plate 11 and the sliding seat 312 is located inside the limiting plate 11; one end of the elastic member 33 is connected with the limiting plate 11, and the other end is connected with the sliding seat 312. The side of the sliding seat 312 facing the limiting plate 11 is provided with a mounting groove, and the elastic member 33 extends into the mounting groove. By abutting the limiting plate 11 and the sliding seat 312, the maximum walking displacement of the mounting seat 31 in the width direction of the walking beam 1 can be limited.

[0044] Specifically, continuing to refer to Figure 4 , the sliding groove 12 is provided with a C-shaped channel steel on both sides; the side surface of the sliding seat 312 is provided with a protrusion, so that the sliding seat 312 forms a T-shaped structure, and the protrusion is slidably inserted into the C-shaped channel steel. Realize the relative sliding between the sliding seat 312 and the walking beam 1.

[0045] Specifically, the main beam 2 is provided with a symmetrically arranged auxiliary hanging wheel assembly 3 on both sides.

[0046] Specifically, continuing to refer to Figure 3 and Figure 4As shown, the limiting plate 11 is detachably mounted with a limiting block 36 on one side of the mounting base 31, and the limiting block 36 can shorten the stroke of the mounting base 31 in the width direction of the walking beam 1. Before lifting the main beam 2, the limiting block 36 is detached, the moving stroke of the mounting base 31 is increased, and the two groups of opposite auxiliary hanging wheels 34 can be relatively moved to a distance greater than the width of the wing plate 21. After the main beam 2 is installed, the limiting block 36 is installed on the limiting plate 11, the stroke of the mounting base 31 is shortened, and when the main beam 2 moves with one side of the mounting base 31 during the correction process, the other side of the auxiliary hanging wheel 34 will not be separated from the wing plate 21, ensuring that the main beam 2 always cooperates with the auxiliary hanging wheel 34 during walking, thereby ensuring stability and avoiding rollover.

[0047] Specifically, the limiting plate 11 is provided with a plurality of through holes, the limiting block 36 is threadedly connected with a mounting rod 37, and the mounting rod 37 is connected with a nut 38 after penetrating through the through hole. When installing the limiting block 36, first place the limiting block 36 between the limiting plate 11 and the mounting base 31, then threadedly connect the mounting rod 37 with the limiting block 36 after penetrating through the through hole, then install the nut 38 on the other end of the mounting rod 37 penetrating through the through hole, and respectively set corresponding threads on the mounting rod 37, so that the mounting rod 37 is threadedly installed in the limiting block 36, and then the nut 38 is installed.

[0048] Specifically, the auxiliary hanging wheel assembly 3 further comprises a connecting plate 35, the mounting base 31 is provided with a rotating shaft extending along the width direction of the walking beam 1, the connecting plate 35 is rotatably installed on the rotating shaft, and two auxiliary supporting wheels are rotatably connected to the connecting plate 35 and distributed on both sides of the rotating shaft. During the walking of the main beam 2, it is impossible to always keep the main beam 2 parallel to the walking beam 1, and by arranging the connecting plate 35 rotatably connected with the rotating shaft and the two auxiliary hanging wheels 34, it is ensured that at least one hanging wheel abuts against the wing plate 21, thereby ensuring the stability of the main beam 2.

[0049] Specifically, the two sides of the main beam 2 are provided with symmetrically distributed correction assemblies 4.

[0050] Specifically, it further comprises a conversion support leg 5, the conversion support leg 5 is connected with the main beam 2, and the bottom of the conversion support leg 5 is provided with a conversion oil cylinder 6, so that the conversion oil cylinder 6 is elongated to support the walking beam 1. When the main beam 2 is walking, the conversion oil cylinder 6 is retracted, the main beam 2 is supported by the supporting wheel, and the walking beam 1 remains fixed, and the main beam 2 walks. When the walking beam 1 walks, the conversion oil cylinder 6 is elongated, so that the bridge deck supports the main beam 2, the main beam 2 remains fixed, and the walking beam 1 walks. It should be noted that when the main beam 2 and the walking beam 1 walk relative to each other, the conversion support leg 5 does not interfere with the correction support leg 41.

[0051] The installation process: the main beam 2 is hoisted above the walking beam 1, and the limiting block 36 on the limiting plate 11 is removed, the auxiliary oil cylinder 32 drives the mounting seat 31 to move towards the outside of the walking beam 1, so that the spacing of the two sets of opposite auxiliary wheels 34 is greater than the width of the wing plate 21, at this time, refer to the state shown in Figure 2 Then the main beam 2 is lowered, and the wing plate 21 abuts against the supporting wheel. Then the auxiliary oil cylinder 32 is shortened, and the mounting seat 31 moves towards the center of the walking beam 1 under the action of the elastic element 33, so that the wing plate 21 is pressed and covered on the wing plate 21. Then the limiting block 36 is installed on the limiting plate 11 to prevent the wing plate 21 from being separated from the auxiliary wheel 34 during the correction process, at this time, refer to the state shown in Figure 2 Finally, the conversion support leg 5 is assembled. The correction support leg 41 is installed when it is necessary to correct the walking of the main beam 2, and the correction assembly 4 is removed when the walking beam 1 walks.

[0052] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above-mentioned embodiments are not described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the present application.

[0053] The above-mentioned embodiments only express several implementation manners of the present application, the description is more specific and detailed, but it should not be understood as the limitation of the patent application scope. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A bridge-building machine traveling mechanism, comprising: The traveling beam is equipped with rollers on top. The main beam rests on the support rollers; The main beam is provided with wing plates on its side; Its characteristic is that it further includes: An auxiliary roller assembly includes a mounting base, an auxiliary hydraulic cylinder, an elastic element, and an auxiliary roller. The mounting base is movably mounted on the traveling beam along its width. One end of the auxiliary hydraulic cylinder is connected to the traveling beam, and the other end abuts against the mounting base, used to push the mounting base to move outward toward the traveling beam. The elastic element is connected between the mounting base and the traveling beam and has elastic potential energy to drive the mounting base to move toward the center of the traveling beam. The auxiliary roller is connected to the mounting base and presses against the wing plate. The alignment correction assembly includes alignment correction legs and alignment correction cylinders; the alignment correction legs are installed on the bridge body, and the alignment correction cylinders are connected to the alignment correction legs and abut against the main beam.

2. The bridge-building machine traveling mechanism according to claim 1, characterized in that, The travel beam is provided with a limiting plate at its edge; the mounting base includes a slide and a mounting base body, and the travel beam is provided with a sliding groove that mates with the slide; the mounting base body is connected to the slide, and a notch is formed between the mounting base body and the slide, so that the mounting base body is located above the limiting plate and the slide is located inside the limiting plate; one end of the elastic element is connected to the limiting plate and the other end is connected to the slide.

3. The bridge-building machine traveling mechanism according to claim 2, characterized in that, The slide groove is provided with C-shaped channel steel on both sides; the slide block is provided with a protrusion on the side, and the protrusion is slidably inserted into the C-shaped channel steel.

4. The bridge-building machine traveling mechanism according to claim 2, characterized in that, The slide block has a mounting groove on the side facing the limiting plate, and the elastic element extends into the mounting groove.

5. The bridge-building machine traveling mechanism according to claim 2, characterized in that, The main beam is provided with symmetrically arranged auxiliary roller assemblies on both sides.

6. The bridge-building machine traveling mechanism according to claim 2, characterized in that, The limiting plate has a detachable limiting block mounted on the side facing the mounting base.

7. The bridge-building machine traveling mechanism according to claim 6, characterized in that, The limiting plate is provided with multiple through holes, and the limiting block is threaded with an installation rod, which passes through the through holes and is connected to a nut.

8. The bridge-building machine traveling mechanism according to claim 1, characterized in that, The auxiliary roller assembly also includes a connecting plate; the mounting base is provided with a rotating shaft extending along the width direction of the traveling beam, and the connecting plate is rotatably mounted on the rotating shaft; two auxiliary rollers are respectively rotatably connected to the connecting plate and distributed on both sides of the rotating shaft.

9. The bridge-building machine traveling mechanism according to claim 1, characterized in that, The main beam is equipped with symmetrically distributed correction components on both sides.

10. The bridge-building machine traveling mechanism according to claim 1, characterized in that, It also includes a conversion leg, which is connected to the main beam, and the bottom of the conversion leg is equipped with a conversion cylinder, which extends to support the traveling beam.

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