Walking device for large-span bridge fabrication machine

Abstract

The utility model provides a walking device for a large-span bridge fabrication machine. The walking device comprises a walking frame, two guide rail beams and two connecting structures. Wherein the connecting structure comprises a plurality of sliding seats and a plurality of connecting seats; the sliding seats are arranged on the guide rail beam side by side in the front-back direction, and each sliding seat is rotationally connected with a roller located between the upper flange and the lower flange in the left-right direction; the connecting seats are hinged to the sliding seats in a one-to-one correspondence mode, the axial direction of hinging is parallel to the left-right direction, and each connecting seat is fixedly connected with the walking frame. According to the walking device for the large-span bridge fabrication machine, when construction of a hanging basket for the large-span bridge fabrication machine is carried out, the inclination effect of the walking frame can be balanced through hinge joint of the sliding seat and the connecting seat, it can be guaranteed that all the rolling wheels on the front side and the rear side are always connected with the upper flanges of the guide rail beams, the abrasion degree of all the rolling wheels is kept consistent, and the service life of the rolling wheels is prolonged. And the use stability of the hanging basket walking device for the bridge fabrication machine is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction technical field, more specifically, relate to a kind of travelling device for large span bridge machine. BACKGROUND

[0002] Travelling device for bridge machine is an important component of bridge machine system, responsible for providing necessary power and support to hanging basket in the construction process of bridge, so that hanging basket can move along the preset track or beam segment, to carry out the next stage of concrete pouring or construction operation;In prior art, travelling device for bridge machine includes travelling frame connected with hanging basket, and multiple guide rail beams arranged on the lower side of travelling frame for supporting travelling frame.

[0003] Among them, travelling frame and each guide rail beam are connected by sliding;Specifically, travelling frame is provided with multiple rollers arranged at intervals along the length direction of guide rail beam, and guide rail beam is provided with flange protruding outward, suitable for connecting with the upper side of roller.

[0004] The inventor finds that, since hanging basket is usually fixed to the front side or rear side of travelling frame, travelling frame is inclined due to uneven stress, and part of rollers contact flange, and part of rollers do not contact flange. When carrying out large-span bridge construction, this feature will be amplified, resulting in inconsistent service life of rollers on the front and rear sides, affecting the stability of travelling device for bridge machine hanging basket in use. UTILITY MODEL CONTENTS

[0005] The purpose of the present application is to provide a kind of travelling device for large span bridge machine, to solve the technical problems that travelling frame in prior art is inclined due to uneven stress, resulting in inconsistent service life of rollers on the front and rear sides, and reducing the stability of travelling device for bridge machine in use.

[0006] To achieve the above-mentioned purpose, the technical scheme adopted by the present application is: a kind of travelling device for large span bridge machine is provided, including travelling frame for connecting with bridge machine hanging basket, two guide rail beams, and two groups of connecting structures respectively arranged on two guide rail beams and connected with travelling frame;Wherein, each guide rail beam is provided with upper flange and lower flange extending outward;Its characterized in that, the connecting structure includes:

[0007] Multiple sliding seats are arranged side by side on the guide rail beam in front and rear direction, and each sliding seat is rotatably connected with roller between the upper flange and the lower flange in left and right direction;And

[0008] Multiple connecting seats are hingedly connected on multiple sliding seats one by one, the hinged axis is parallel to left and right direction, and each connecting seat is fixedly connected with travelling frame.

[0009] As preferred, the connecting base has an upper protrusion extending downward, and the sliding base has a lower protrusion extending upward;

[0010] The upper protrusion has an upper through hole extending in left-right direction, and the lower protrusion has a lower through hole communicating with the upper through hole; a connecting shaft is arranged between the upper protrusion and the lower protrusion, and the connecting shaft is inserted into the upper through hole and the lower through hole to connect the connecting base and the sliding base.

[0011] As preferred, a torsion spring is sleeved on the connecting shaft; one end of the torsion spring is connected with the connecting shaft, and the other end is connected with the connecting base through a fixing structure.

[0012] The fixing structure includes:

[0013] a fixing plate arranged on the connecting base and having a groove for embedding one end of the torsion spring; and

[0014] a limiting bolt threadedly connected with the fixing plate and having an axis perpendicular to the fixing plate; the screw end of the limiting bolt is used to abut against the connecting base.

[0015] As preferred, a plurality of springs are arranged between the sliding base and the connecting base, and two ends of each spring are connected with the sliding base and the connecting base respectively.

[0016] As preferred, anti-loosening nuts are threadedly connected with two ends of the connecting shaft, and the two anti-loosening nuts abut against the upper protrusion and the lower protrusion respectively, or the two anti-loosening nuts abut against two sides of the upper protrusion or two sides of the lower protrusion respectively.

[0017] As preferred, the walking device of the long-span bridge building machine further includes:

[0018] two groups of traction mechanisms arranged on the two guide rail beams respectively, and each group of the traction mechanisms is drivingly connected with one of the sliding bases on the same side.

[0019] As preferred, the traction mechanism includes:

[0020] a reaction plate arranged on the guide rail beam;

[0021] a traction rod having one end fixedly connected with the reaction plate and the other end slidingly inserted into the sliding base; the axial direction of the traction rod is parallel to the axial direction of the guide rail beam; and

[0022] A tensioning device is sleeved on the traction rod and abuts against one side of the sliding seat away from the counterforce plate; the tensioning device is used to generate a force along the axis of the traction rod towards the counterforce plate to push the sliding seat to move towards the counterforce plate.

[0023] As preferred, a plurality of guide plates are arranged on the sliding seat along the axis of the traction rod; each of the guide plates has a through hole for the traction rod to pass through; and one of the guide plates abuts against the tensioning device.

[0024] As preferred, the counterforce plate is provided with a plurality of reinforcing rib plates on one side thereof towards the sliding seat, and each of the reinforcing rib plates has an inclined surface inclined towards the sliding seat from top to bottom.

[0025] In the embodiment, the two groups of connecting structures are installed between the two guide rail beams and the running frame, the plurality of connecting seats in the connecting structures are hingedly connected to the plurality of sliding seats one by one, the sliding seats can slide on the guide rail beams through the plurality of rollers, and the connecting seats are fixedly connected to the running frame; when the running frame is inclined due to uneven force, each connecting seat can swing around the connecting shaft with the corresponding sliding seat, so as to change the direction of the force applied by the running frame on each sliding seat, so that the direction of the force received by each sliding seat can always be perpendicular to the guide rail beam, and the plurality of rollers on each sliding seat can always be in close contact with the upper flange of the guide rail beam.

[0026] Compared with the prior art, the hinging of the sliding seat and the connecting seat can balance the inclination of the running frame, and can ensure that all the rollers on the front and rear sides are always in contact with the upper flange of the guide rail beam, so that the wear degree of each roller is consistent, and the stability of the running device of the bridge building machine is improved. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced as follows. 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.

[0028] Figure 1 A perspective structural schematic diagram of the running device of the long-span bridge building machine provided in the embodiment of the present application;

[0029] Figure 2 A front view structural schematic diagram of the running device of the long-span bridge building machine provided in the embodiment of the present application;

[0030] Figure 3 A side view structural schematic diagram of the walking device of the long-span bridge making machine provided by the embodiment of the present application is shown in the figure;

[0031] Figure 4 The walking device is provided along Figure 3 A sectional view structural schematic diagram along line A-A in the figure;

[0032] Figure 5 The walking device is provided along Figure 3 An enlarged structural schematic diagram of region I in the figure;

[0033] Figure 6 The walking device is provided along Figure 4 An enlarged structural schematic diagram of region II in the figure;

[0034] Figure 7 The walking device is provided along Figure 4 An enlarged structural schematic diagram of region III in the figure;

[0035] In the figure, various reference signs are as follows:

[0036] 1, sliding seat; 11, roller; 12, lower protruding part; 13, guide plate; 131, through hole; 2, connecting seat; 21, upper protruding part; 3, connecting shaft; 31, torsional spring; 32, anti-coming-off nut; 4, fixed structure; 41, fixed plate; 411, groove; 42, limiting bolt; 5, spring; 6, traction mechanism; 61, counter-force plate; 611, reinforcing rib plate; 62, traction rod; 63, tensioner; 7, walking frame; 8, guide rail beam; 81, upper flange; 82, lower flange. DETAILED DESCRIPTION

[0037] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0038] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0039] It should be understood that the terms “length”, “width”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying 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 limiting the present application.

[0040] Furthermore, the terms "first", "second", etc. are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or an ordered sequence. Thus, features defined with "first", "second" etc. can include one or more of the features.

[0041] Please refer to Figures 1 to 7 The large-span bridge builder walking device provided by the present application will be described below. The large-span bridge builder walking device comprises a walking frame 7 connected with a hanging basket of a bridge builder, two guide rail beams 8, and two groups of connecting structures respectively arranged on the two guide rail beams 8 and connected with the walking frame 7. Each guide rail beam 8 has an upper flange 81 and a lower flange 82 extending outward, and each group of connecting structures comprises a plurality of sliding seats 1 and a plurality of connecting seats 2.

[0042] The plurality of sliding seats 1 are arranged side by side on the guide rail beam 8 in the front-rear direction, and each sliding seat 1 is rotatably connected with a plurality of rollers 11 between the upper flange 81 and the lower flange 82 in the left-right direction. The number of rollers 11 is more than one, and each roller 11 is used to connect with the upper flange 81.

[0043] The plurality of connecting seats 2 are hingedly connected to the plurality of sliding seats 1 one by one, and the hinged axis is parallel to the left-right direction. Each connecting seat 2 is fixedly connected with the walking frame 7. The connecting seat 2 is connected with the walking frame 7 by welding.

[0044] In the embodiment of the present application, the two groups of connecting structures are installed between the two guide rail beams 8 and the walking frame 7. The plurality of connecting seats 2 in the connecting structure are hingedly connected to the plurality of sliding seats 1 one by one. The sliding seat 1 can slide on the guide rail beam 8 through the plurality of rollers 11, and the connecting seat 2 is fixedly connected with the walking frame 7. When the walking frame 7 is inclined due to uneven force, each connecting seat 2 can swing around the connecting shaft 3 with the corresponding sliding seat 1, thereby changing the direction of the force applied by the walking frame 7 to each sliding seat 1. The direction of the force acting on each sliding seat 1 can always be perpendicular to the guide rail beam 8, ensuring that the plurality of rollers 11 on each sliding seat 1 can always be in close contact with the upper flange 81 of the guide rail beam 8.

[0045] Compared with the prior art, the large-span bridge builder walking device provided by the present application can balance the inclination effect of the walking frame 7 when the hanging basket of the large-span bridge builder is used for construction. It can ensure that all the rollers 11 on the front and rear sides are always in contact with the upper flange 81 of the guide rail beam 8, so that the wear degree of each roller 11 remains consistent, and the stability of the walking device of the hanging basket of the bridge builder is improved.

[0046] In some embodiments, please refer to Figures 1 to 7 , as a specific embodiment of the walking device for long-span bridge making machine provided in the present application, the connecting seat 2 has a downward extending upper protruding part 21, and the sliding seat 1 has an upward extending lower protruding part 12; wherein the upper protruding part 21 is located at the inner side or the outer side of the lower protruding part 12.

[0047] Wherein, the upper protruding part 21 is provided with an upper through hole penetrating in the left-right direction, the lower protruding part 12 is provided with a lower through hole communicating with the upper through hole, and the upper through hole and the lower through hole are coaxially arranged; the connecting shaft 3 is inserted into the upper through hole and the lower through hole which are in communication, and the two ends of the connecting shaft 3 are connected with the connecting seat 2 and the sliding seat 1 respectively, so that the connecting seat 2 and the sliding seat 1 are hinged; the connecting shaft 3 is made of a metal material with high shear resistance, so as to maintain the stability of the connection between the connecting seat 2 and the sliding seat 1 during construction; rotating bearings are respectively arranged between the connecting shaft 3 and the connecting seat 2 and the sliding seat 1, so as to reduce the friction between the connecting shaft 3 and the connecting seat 2 and the sliding seat 1.

[0048] In some embodiments, please refer to Figures 1 to 6 , as a specific embodiment of the walking device for long-span bridge making machine provided in the present application, a torsional spring 31 is sleeved on the connecting shaft 3; one end of the torsional spring 31 is connected with the connecting shaft 3, and the other end is connected with the connecting seat 2 through a fixing structure 4.

[0049] By adopting the above technical scheme, when the connecting seat 2 and the sliding seat 1 rotate relative to each other around the connecting shaft 3, the torsional spring 31 is adapted to be twisted and deformed, and is adapted to generate an acting force for making the connecting seat 2 and the sliding seat 1 rotate in opposite directions, which is used to offset part of the impact force when the connecting seat 2 and the sliding seat 1 rotate relative to each other, so that the equipment body is more stable during construction.

[0050] In some embodiments, please refer to Figure 5 and Figure 6 , as a specific embodiment of the walking device for long-span bridge making machine provided in the present application, the fixing structure 4 includes a fixing plate 41 and a limiting bolt 42.

[0051] The fixing plate 41 is arranged on the connecting seat 2, and is provided with a groove 411 for embedding one end of the torsional spring 31.

[0052] The limiting bolt 42 is threadedly connected with the fixing plate 41, and the axis direction thereof is perpendicular to the fixing plate 41; the screw end of the limiting bolt 42 is used to abut against the connecting seat 2.

[0053] By adopting the above technical scheme, the limiting bolt 42 can prevent one end of the torsional spring 31 from being separated from the groove 411 on the fixing plate 41.

[0054] In some embodiments, referring to Figures 1 to 7 , as a specific embodiment of the walking device for long-span bridge construction machine provided in the present application, a plurality of springs 5 are arranged between the sliding seat 1 and the connecting seat 2, and two ends of each spring 5 are connected with the sliding seat 1 and the connecting seat 2 respectively.

[0055] By adopting the above technical solution, by arranging a plurality of springs 5 between the sliding seat 1 and the connecting seat 2, the relative rotation of the connecting seat 2 and the sliding seat 1 in a large amplitude can be prevented when the walking frame 7 is subjected to a large impact force during construction, thereby improving the stability of the whole device.

[0056] In some embodiments, referring to Figure 1 and Figure 2 , as a specific embodiment of the walking device for long-span bridge construction machine provided in the present application, the connecting shaft 3 is threadedly connected with anti-unscrewing nuts 32 at both ends, and the two anti-unscrewing nuts 32 abut against the upper protruding portion 21 and the lower protruding portion 12 respectively, or the two anti-unscrewing nuts 32 abut against the two sides of the upper protruding portion 21 or the two sides of the lower protruding portion 12 respectively.

[0057] By adopting the above technical solution, when the connecting shaft 3 is disconnected with the connecting seat 2 or the sliding seat 1, the anti-unscrewing nuts 32 can prevent the connecting shaft 3 from moving along the axial direction of itself, thereby ensuring the safety of the device during construction.

[0058] In some embodiments, referring to Figures 1 to 4 , as a specific embodiment of the walking device for long-span bridge construction machine provided in the present application, the walking device for long-span bridge construction machine further comprises two groups of traction mechanisms 6.

[0059] The two groups of traction mechanisms 6 are arranged on the two guide rail beams 8 respectively, and each group of traction mechanisms 6 is in transmission connection with one of the sliding seats 1 on the same side; each group of traction mechanisms 6 can drive the sliding seat 1 to move along the axial direction of the guide rail beam 8.

[0060] In some embodiments, referring to Figures 1 to 4 , as a specific embodiment of the walking device for long-span bridge construction machine provided in the present application, the traction mechanism 6 comprises a counterforce plate 61, a traction rod 62 and a tensioner 63.

[0061] The counterforce plate 61 is arranged on the guide rail beam 8; the counterforce plate 61 is detachably connected with the guide rail beam 8, and can be replaced and installed at a position as needed; the counterforce plate 61 can be connected with the guide rail beam 8 by means of bolt fixation.

[0062] One end of the traction rod 62 is fixedly connected with the counterforce plate 61, and the other end is slidingly inserted into the sliding seat 1; the axial direction of the traction rod 62 is parallel to the axial direction of the guide rail beam 8.

[0063] The tensioner 63 is sleeved on the traction rod 62, and abuts against the side of the sliding seat 1 away from the reaction plate 61; the tensioner 63 is used to generate an acting force along the axis of the traction rod 62 towards the reaction plate 61, so as to push the sliding seat 1 to move towards the reaction plate 61.

[0064] The tensioner 63 is mainly composed of a jack and a high-pressure oil pump; by fixing the part of the traction rod 62 extending into the tensioner 63, then extending the output part of the jack, an acting force towards the reaction plate 61 is applied to the sliding seat 1, and then the acting force pushes the sliding seat 1 to move towards the reaction plate 61; after moving a certain distance, the tensioner 63 releases the traction rod 62, the output part of the jack is retracted to the original position, and the above steps are repeated to realize the movement of the sliding seat 1 by a predetermined distance.

[0065] By adopting the above technical scheme, the driving mode of the tensioner 63 for providing movement to the sliding seat 1 has the advantages of high stability, small impact force, and simple operation.

[0066] In some embodiments, please refer to Figures 1 to 4 and Figure 7 as a specific embodiment of the walking device for the long-span bridge builder provided by the present application, a plurality of guide plates 13 are arranged on the sliding seat 1 in parallel along the axis of the traction rod 62; each guide plate 13 has a through hole 131 for the traction rod 62 to pass through; and one of the guide plates 13 abuts against the tensioner 63.

[0067] By adopting the above technical scheme, the plurality of guide plates 13 can ensure that the axis of the traction rod 62 always remains parallel to the axis of the guide rail beam 8 during the movement of the sliding seat 1 driven by the tensioner 63, so as to avoid the deviation of the traction rod 62.

[0068] In some embodiments, please refer to Figures 1 to 4 as a specific embodiment of the walking device for the long-span bridge builder provided by the present application, a plurality of guide plates 13 are arranged on the sliding seat 1 in parallel along the axis of the traction rod 62; each guide plate 13 has a through hole 131 for the traction rod 62 to pass through; and one of the guide plates 13 abuts against the tensioner 63.

[0069] By adopting the above technical scheme, the plurality of guide plates 13 can ensure that the axis of the traction rod 62 always remains parallel to the axis of the guide rail beam 8 during the movement of the sliding seat 1 driven by the tensioner 63, so as to avoid the deviation of the traction rod 62.

[0070] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A walking device for long-span bridge builder, comprising a walking frame for connecting with a hanging basket of the bridge builder, two guide rail beams, and two groups of connecting structures respectively arranged on the two guide rail beams and connected with the walking frame; wherein each of the guide rail beams has an upper flange and a lower flange extending outward; characterized in that, The connecting structure comprises: a plurality of sliding seats arranged side by side on the guide rail beams in the front-rear direction, and each of the sliding seats is rotatably connected with a roller between the upper flange and the lower flange in the left-right direction; a plurality of connecting seats hingedly connected to the sliding seats one by one, the hinged axis of which is parallel to the left-right direction, and each of the connecting seats is fixedly connected with the running frame; the connecting seat has an upwardly extending upper protruding portion, and the sliding seat has a downwardly extending lower protruding portion; wherein the upper protruding portion is provided with an upper through hole penetrating in the left-right direction, and the lower protruding portion is provided with a lower through hole communicating with the upper through hole; the connecting shaft is inserted into the upper through hole and the lower through hole in communication with each other, so that the connecting seat and the sliding seat are hingedly connected; a torsional spring is sleeved on the connecting shaft; one end of the torsional spring is connected with the connecting shaft, and the other end is connected with the connecting seat through a fixing structure.

2. The traveling device for a long-span bridge maker according to claim 1, wherein The fixing structure comprises: a fixing plate arranged on the connecting seat, and the fixing plate is provided with a groove for embedding one end of the torsional spring; and a limiting bolt is threadedly connected with the fixing plate, and the axis direction of the limiting bolt is perpendicular to the fixing plate; the screw end of the limiting bolt is used to abut against the connecting seat.

3. The traveling device for a long-span bridge maker according to Claim 1, wherein A plurality of springs are arranged between the sliding seat and the connecting seat, and the two ends of each spring are connected with the sliding seat and the connecting seat respectively.

4. The traveling device for a long-span bridge maker according to Claim 1, wherein The two ends of the connecting shaft are threadedly connected with anti-loosening nuts, and the two anti-loosening nuts abut against the upper protruding portion and the lower protruding portion respectively, or the two anti-loosening nuts abut against the two sides of the upper protruding portion or the two sides of the lower protruding portion respectively.

5. The traveling device for a long-span bridge maker according to Claim 1, wherein The running device of the long-span bridge building machine further comprises: two groups of traction mechanisms arranged on the two guide rail beams respectively, and each group of the traction mechanisms is drivingly connected with one of the sliding seats on the same side.

6. The traveling device for a long-span bridge maker according to claim 5, wherein The traction mechanism comprises: a counterforce plate arranged on the guide rail beam; a traction rod fixedly connected at one end to the counterforce plate and slidably inserted at the other end into the sliding seat; the axis direction of the traction rod is parallel to the axis direction of the guide rail beam; and a tensioner sleeved on the traction rod and abutting against the side of the sliding seat away from the counterforce plate; the tensioner is used to generate an acting force along the axis of the traction rod towards the counterforce plate, so as to push the sliding seat to move towards the counterforce plate.

7. The traveling device for a long-span bridge maker according to claim 6, wherein A plurality of guide plates are arranged side by side on the sliding seat in the axis direction of the traction rod; each of the guide plates is provided with a through hole for the traction rod to pass through; and one of the guide plates abuts against the tensioner.

8. The traveling device for a long-span bridge maker according to claim 6, wherein The side of the counterforce plate facing the sliding seat is provided with a plurality of reinforcing rib plates, and each of the reinforcing rib plates has an inclined surface inclined from top to bottom towards the sliding seat.

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