Temporary supporting leg device for unilateral bridge girder erection machine

Abstract

The utility model discloses a temporary landing leg device for a unilateral bridge erecting machine, which comprises a connecting beam arranged at the bottom of the front end of a left branch main beam and the bottom of the front end of a right branch main beam of a main beam, the bottom of the connecting beam is movably connected with a horizontal rotating connecting seat, and the middle of the horizontal rotating connecting seat is movably connected with an upper rotating seat through a hinge shaft. The same supporting leg cross beam extending left and right is fixed on the bottom surfaces of the two upper rotating seats; telescopic sleeve outer sleeves are fixed to the left portion and the right portion of the supporting leg cross beam, a temporary short supporting leg is installed in the telescopic sleeve outer sleeve on the left side, and a temporary long supporting leg is installed on the telescopic sleeve outer sleeve on the right side. The temporary short supporting legs are supported on the bridge, and the temporary long supporting legs are supported on the corresponding extension bearing platforms, so that the requirement that the bridge erecting machine moves and bridges on the bridge and the side extension bearing platforms is met.

Description

Technical Field

[0001] This utility model relates to the field of bridge processing equipment technology, and more specifically to a temporary support leg device for a single-sided bridge erecting machine. Background Technology

[0002] When existing bridges need to be widened, a pier cap needs to be installed on one side of the bridge, then piers are installed on the pier cap, and finally the top beams are installed to achieve the widening. The bridge erecting machine is positioned on one side of the bridge and on the other side of the pier to move and lay the beams. However, some pier caps have not yet been installed. In this case, the length of the temporary outriggers of the bridge erecting machine is insufficient to press against the top surface of the corresponding pier cap. Therefore, the existing bridge erecting machines cannot meet the laying requirements. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a temporary support leg device for a single-sided bridge erecting machine. It supports the bridge with temporary short support legs and supports the corresponding expansion pier with temporary long support legs, thereby meeting the needs of the bridge erecting machine to move and erect bridges on the bridge and the side expansion pier.

[0004] The solution of this utility model to the aforementioned technical problem is:

[0005] A temporary support leg device for a single-sided bridge erecting machine includes a connecting beam installed at the bottom of the front end of two sub-main beams on the left and right sides of the main beam. The bottom of the connecting beam is movably connected to a horizontal rotating connecting seat. The middle part of the horizontal rotating connecting seat is movably connected to an upper rotating seat through a hinge shaft. The bottom surfaces of the two upper rotating seats are fixed with the same left and right extending support leg beam.

[0006] Telescopic sleeves are fixed to the left and right sides of the support leg crossbeam. A temporary short support leg is installed in the telescopic sleeve on the left side, and a temporary long support leg is installed on the telescopic sleeve on the right side.

[0007] The bottom surfaces of the support beams on both sides of the telescopic sleeve on the right side are equipped with hand-operated hoists. Two connecting blocks are fixed on the outer bottom of the upper sleeve of the temporary long support leg device. The hooks of the hand-operated hoists are hooked onto the corresponding connecting blocks.

[0008] The bottom plate of the first bottom support leg of the temporary short support leg presses against the top surface of the right side of the bridge. An extended pier is fixed on the ground on the right side of the bridge, and the bottom plate of the bottom support leg device presses against the top surface of the extended pier.

[0009] The telescopic sleeve is inserted into the vertical through groove formed in the middle of the left and right sides of the support leg beam. Connecting blocks are fixed to the upper and lower parts of the outer side wall of the telescopic sleeve, and the connecting blocks are welded and fixed to the support leg beam.

[0010] The temporary short support leg includes a left connecting sleeve, the upper part of which is inside the left telescopic sleeve, and its outer side wall is fixed to the inner side wall of the left telescopic sleeve. The lower part of the left connecting sleeve extends out of the bottom end of the left telescopic sleeve. A first hydraulic cylinder connecting seat is fixed to the upper part of the left connecting sleeve. A first hydraulic cylinder with an external displacement sensor is located in the left connecting sleeve, and its top is movably connected to the first hydraulic cylinder connecting seat through a hinge shaft. The bottom end of the push rod of the first hydraulic cylinder is movably connected to a connecting seat through a hinge shaft. The bottom surface of the connecting seat is fixed to the top surface of the bottom plate of the first bottom support leg. The first bottom support leg is sleeve-shaped and is inserted into the left connecting sleeve. Its outer side wall is close to and cooperates with the inner side wall of the left connecting sleeve. The first hydraulic cylinder is inserted into the first bottom support leg.

[0011] The temporary long support leg includes a first right vertical sleeve with a rectangular cross-section. The first right vertical sleeve is inserted into the right telescopic sleeve. The outer side wall of the first right vertical sleeve is close to the inner side wall of the right telescopic sleeve and cooperates with the right telescopic sleeve. A second right vertical sleeve is inserted into the lower part of the first right vertical sleeve. The second right vertical sleeve cooperates with the first right vertical sleeve. The lower part of the second right vertical sleeve extends out of the bottom end of the first right vertical sleeve and is fixedly connected to the top end of the upper outer sleeve of the bottom support leg device by bolts.

[0012] The bottom support leg device includes an upper outer sleeve with a rectangular cross-section. Two connecting blocks are fixed on the left and right side walls of the bottom of the upper outer sleeve. A bottom sleeve is inserted into the lower part of the upper outer sleeve. The outer side wall of the bottom sleeve is close to and cooperates with the inner side wall of the upper outer sleeve. An upper connecting seat is fixed to the top of the upper outer sleeve. A second hydraulic cylinder with an external displacement sensor is inserted into the upper outer sleeve and the bottom sleeve. The top of the second hydraulic cylinder is movably connected to the upper connecting seat through a hinge shaft. The bottom end of the push rod of the second hydraulic cylinder is movably connected to the lower connecting seat through a hinge shaft. The lower connecting seat is fixed to the top surface of the bottom plate of the bottom sleeve.

[0013] The outstanding effect of this utility model is:

[0014] Compared with existing technologies, it supports the bridge on the bridge with temporary short support legs and supports the corresponding expansion piers with temporary long support legs, thereby meeting the needs of the bridge erecting machine to move and erect bridges on the bridge and the side expansion piers. Attached Figure Description

[0015] Figure 1 This is a partial structural schematic diagram of the present invention;

[0016] Figure 2 yes Figure 1 A magnified view of a portion of the image;

[0017] Figure 3 yes Figure 1 A magnified view of another part;

[0018] Figure 4 yes Figure 1 There are also some enlarged partial images;

[0019] Figure 5 This is a partial schematic diagram of the bridge after its expansion. Detailed Implementation

[0020] For example, see below. Figures 1 to 5 As shown, a temporary support leg device for a single-sided bridge erecting machine includes a connecting beam 12 installed at the bottom of the front end of two sub-main beams 11 on the main beam. The bottom of the connecting beam 12 is movably connected to a horizontal rotating connecting seat 13 via a hinge shaft. The middle part of the horizontal rotating connecting seat 13 is movably connected to an upper rotating seat 14 via a hinge shaft. The bottom surfaces of the two upper rotating seats 14 are fixed to the same left and right extending support leg crossbeam 20.

[0021] Telescopic sleeves 21 are fixed to the left and right sides of the support leg beam 20. A temporary short support leg 30 is installed in the telescopic sleeve 21 on the left side, and a temporary long support leg 40 is installed on the telescopic sleeve 21 on the right side.

[0022] The bottom surfaces of the support beams 20 on both sides of the telescopic sleeve 21 on the right are equipped with hand-operated hoists 50. The bottom of the temporary long support leg 40 is fixed to the bottom of the bottom support leg device 60. Two connecting blocks 62 are fixed to the bottom outer side of the upper sleeve 61. The hook of the hand-operated hoist 50 is hooked onto the corresponding connecting block 62.

[0023] Furthermore, the bottom plate of the first bottom support leg 35 of the temporary short support leg 30 presses against the top surface of the right side of the bridge, and the extended pier 100 is fixed on the ground at the right side of the bridge, and the bottom plate of the bottom support leg device 60 presses against the top surface of the extended pier 100.

[0024] Furthermore, the telescopic sleeve 21 is inserted into the vertical through groove formed in the middle of the left and right sides of the support leg beam 20. Connecting blocks are fixed to the upper and lower parts of the outer side wall of the telescopic sleeve 21, and the connecting blocks are welded and fixed to the support leg beam 20.

[0025] Furthermore, the temporary short support leg 30 includes a left connecting sleeve 32. The upper part of the left connecting sleeve 32 is located in the left telescopic sleeve 21, and its outer side wall is fixed to the inner side wall of the left telescopic sleeve 21. The lower part of the left connecting sleeve 32 extends out of the bottom end of the left telescopic sleeve 21. A first hydraulic cylinder connecting seat 33 is fixed to the upper part of the left connecting sleeve 32. A first hydraulic cylinder 34 with an external displacement sensor is located in the left connecting sleeve 32. Its top is movably connected to the first hydraulic cylinder connecting seat 33 through a hinge shaft. The bottom end of the push rod of the first hydraulic cylinder 34 is movably connected to a connecting seat through a hinge shaft. The bottom surface of the connecting seat is fixed to the top surface of the bottom plate of the first bottom support leg 35. The first bottom support leg 35 is sleeve-shaped and is inserted into the left connecting sleeve 32. Its outer side wall is close to and cooperates with the inner side wall of the left connecting sleeve 32. The first hydraulic cylinder 34 is inserted into the first bottom support leg 35.

[0026] The cross-sections of the telescopic sleeve 21, the left connecting sleeve 32, and the first bottom support leg 35 are all rectangular;

[0027] The first bottom support leg 35 has multiple positioning through holes formed on its front and rear wall panels, which correspond to the connecting through holes formed on the front and rear wall panels of the left connecting sleeve 32.

[0028] The push rod of the first hydraulic cylinder 34 pushes the bottom plate of the first bottom support leg 35 of the temporary short support leg 30 against the top surface of the right side of the bridge. At this time, the displacement sensor senses the distance of the extension of the push rod of the first hydraulic cylinder 34 and sends the signal to the control host (the control host is electrically connected to all electrical components through electrical connection lines to realize control, which is a conventional structure and will not be described in detail here). The control host controls the control valves of the corresponding hydraulic system to operate (this is the existing conventional control method and structure, which will not be described in detail here), so that the push rod of the first hydraulic cylinder 34 stops pushing. At this time, the positioning through hole of the first bottom support leg 35 is aligned with the corresponding connecting through holes formed on the front and rear walls of the left connecting sleeve 32. Then, a pin is inserted for limiting and fixing.

[0029] Furthermore, the bottom surfaces of the support leg beams 20 on both sides of the right telescopic sleeve 21 are movably connected to the hand chain hoist 50 via hinge shafts.

[0030] Furthermore, the temporary long support leg 40 includes a first right vertical sleeve 41 with a rectangular cross-section. The first right vertical sleeve 41 is inserted into the right telescopic sleeve 21. The outer side wall of the first right vertical sleeve 41 is close to the inner side wall of the right telescopic sleeve 21 and cooperates with the right telescopic sleeve 21. A second right vertical sleeve 42 is inserted into the lower part of the first right vertical sleeve 41. The second right vertical sleeve 42 cooperates with the first right vertical sleeve 41. The lower part of the second right vertical sleeve 42 extends out of the bottom end of the first right vertical sleeve 41 and is fixedly connected to the top end of the upper outer sleeve 61 of the bottom support leg device 60 by bolts.

[0031] Furthermore, the front and rear walls of the second right vertical sleeve 42 are formed with a plurality of corresponding connecting through holes, and the lower front and rear walls of the first right vertical sleeve 41 are formed with positioning through holes corresponding to the connecting through holes.

[0032] Furthermore, the bottom support leg device 60 includes an upper outer sleeve 61 with a rectangular cross-section. Two connecting blocks 62 are fixed on the left and right side walls of the bottom of the upper outer sleeve 61. A bottom sleeve 63 is inserted into the lower part of the upper outer sleeve 61. The outer side wall of the bottom sleeve 63 is close to and cooperates with the inner side wall of the upper outer sleeve 61. An upper connecting seat is fixed to the top of the upper outer sleeve 61. A second hydraulic cylinder 64 with an external displacement sensor is inserted into the upper outer sleeve 61 and the bottom sleeve 63. The top of the second hydraulic cylinder 64 is movably connected to the upper connecting seat through a hinge shaft. The bottom end of the push rod of the second hydraulic cylinder 64 is movably connected to the lower connecting seat through a hinge shaft. The lower connecting seat is fixed to the top surface of the bottom plate of the bottom sleeve 63.

[0033] Furthermore, an inclined support beam 22 is fixed to the right side of the support leg beam 20, and the bottom end of the inclined support beam 22 is fixedly connected to the first right vertical sleeve 41 by bolts.

[0034] Furthermore, the upper outer sleeve 61 has corresponding connecting through holes formed on its front and rear wall plates, and the bottom sleeve 63 has multiple corresponding positioning through holes formed on its front and rear wall plates, with all positioning through holes corresponding to the corresponding connecting through holes.

[0035] In this embodiment, the bridge erecting machine is installed at the front of the bridge erecting machine. One side of the bridge erecting machine is installed on the existing bridge, and the other side is fixed on a pier on the ground on the right side of the bridge. The top surface of the expanded pier 100 on this side does not have piers or bridge piers installed. When the bridge erecting machine moves to this location, it needs to be supported.

[0036] The bottom support leg device 60 is lowered by two manual chain hoists 50 until it approaches the top surface of the expanded pier 100. At the same time, it is necessary to ensure that the corresponding connecting through hole of the second right vertical sleeve 42 is aligned with the positioning through hole formed on the front and rear wall plates of the lower part of the first right vertical sleeve 41. The two are fixed by inserting positioning pins. Then, the bottom end of the inclined support beam 22 is fixed to the first right vertical sleeve 41 by bolts to further support the first right vertical sleeve 41.

[0037] Then, the push rod of the second hydraulic cylinder 64 pushes the bottom plate of the bottom sleeve 63 to press against the top surface of the expanded support platform 100 to achieve support. At this time, its external displacement sensor can feed back the displacement to the control host (the control host is electrically connected to all electrical components through electrical connection lines to achieve control, which is a conventional structure and will not be described in detail here). The control host controls the corresponding hydraulic system control valves and other components to operate (which is a conventional structure and operation method and will not be described in detail here). At this time, the connecting through hole of the upper outer sleeve 61 is aligned with the corresponding positioning through hole of the bottom sleeve 63, and it can be fixed by inserting a pin.

[0038] Then, you can proceed with the operation.

[0039] When it is necessary to retract the bottom plate of the first bottom support leg 35 of the temporary short support leg 30, simply pull out the corresponding pin, and then retract it by pushing the rod of the first hydraulic cylinder 34.

[0040] When it is necessary to retract the temporary long support leg 40, firstly, all the corresponding pins are disassembled. Then, the bottom plate of the bottom sleeve 63 is retracted by the push rod of the second hydraulic cylinder 64. Then, the bolts connecting the bottom end of the inclined support beam 22 to the first right vertical sleeve 41 are disassembled. Then, the chains are retracted by manually controlling the two hand chain hoists 50. At this time, the second right vertical sleeve 42 is retracted into the first right vertical sleeve 41. Then, the first right vertical sleeve 41 is raised to the highest position, completing the complete retraction.

[0041] This embodiment is easy to operate and has good results.

[0042] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and can have many variations. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A temporary support leg device for a single-side bridge girder bridge machine, comprising a connecting beam (12) installed at the bottom of the front end of two split main beams (11) of a main girder, characterized in that: The bottom of the connecting beam (12) is movably connected to a horizontal rotating connecting seat (13), and the middle part of the horizontal rotating connecting seat (13) is movably connected to an upper rotating seat (14) via a hinge shaft. The bottom surfaces of the two upper rotating seats (14) are fixed to the same left and right extending support leg beam (20). Telescopic sleeves (21) are fixed at the left and right sides of the support leg beam (20). A temporary short support leg (30) is installed in the telescopic sleeve (21) on the left side, and a temporary long support leg (40) is installed on the telescopic sleeve (21) on the right side. The bottom surfaces of the support beams (20) on both sides of the telescopic sleeve (21) on the right side are equipped with hand-operated hoists (50). The bottom of the temporary long support leg (40) is fixed with two connecting blocks (62) on the outer bottom of the upper sleeve (61) of the bottom support leg device (60). The hook of the hand-operated hoist (50) is hooked onto the corresponding connecting block (62).

2. A temporary shore apparatus for use with a single-leaf bridge girder bridge erecting machine as defined in claim 1, wherein: The bottom plate of the first bottom support leg (35) of the temporary short support leg (30) presses against the top surface of the right side of the bridge. An extended pier (100) is fixed at the ground on the right side of the bridge, and the bottom plate of the bottom support leg device (60) presses against the top surface of the extended pier (100).

3. A temporary shore apparatus for use with a single-leaf bridge girder erecting machine as defined in claim 1, wherein: The telescopic sleeve (21) is inserted into the vertical through groove formed in the middle of the left and right sides of the support leg beam (20). The upper and lower parts of the outer side wall of the telescopic sleeve (21) are fixed with connecting blocks, which are welded and fixed to the support leg beam (20).

4. A temporary shore apparatus for a single-side bridge girder bridge erecting machine according to claim 2, characterized in that: The temporary short support leg (30) includes a left connecting sleeve (32). The upper part of the left connecting sleeve (32) is located in the left telescopic sleeve outer sleeve (21), and its outer side wall is fixed to the inner side wall of the left telescopic sleeve outer sleeve (21). The lower part of the left connecting sleeve (32) extends out of the bottom end of the left telescopic sleeve outer sleeve (21). A first hydraulic cylinder connecting seat (33) is fixed to the upper part of the left connecting sleeve (32). A first hydraulic cylinder (34) with an external displacement sensor is located in the left connecting sleeve (32). The top of the first hydraulic cylinder (34) is movably connected to the first hydraulic cylinder connecting seat (33) via a hinge shaft. The bottom end of the push rod of the first hydraulic cylinder (34) is movably connected to the connecting seat via a hinge shaft. The bottom surface of the connecting seat is fixed to the top surface of the bottom plate of the first bottom support leg (35). The first bottom support leg (35) is sleeve-shaped and is inserted into the left connecting sleeve (32). Its outer side wall is close to and cooperates with the inner side wall of the left connecting sleeve (32). The first hydraulic cylinder (34) is inserted into the first bottom support leg (35). The cross-sections of the telescopic sleeve (21), the left connecting sleeve (32), and the first bottom support leg (35) are all rectangular; The first bottom support leg (35) has multiple positioning through holes formed on its front and rear walls, which correspond to the connecting through holes formed on the front and rear walls of the left connecting sleeve (32).

5. A temporary support leg device for a single-sided bridge erecting machine according to claim 1, characterized in that: The bottom surfaces of the support leg beams (20) on both sides of the right telescopic sleeve (21) are movably connected to a hand chain hoist (50) via a hinge shaft.

6. A temporary shore apparatus for a single-side bridge girder bridge erecting machine according to claim 1, characterized in that: The temporary long support leg (40) includes a first right vertical sleeve (41) with a rectangular cross-section. The first right vertical sleeve (41) is inserted into the right telescopic sleeve (21). The outer side wall of the first right vertical sleeve (41) is close to the inner side wall of the right telescopic sleeve (21) and cooperates with the right telescopic sleeve (21). The lower part of the first right vertical sleeve (41) is fitted with a second right vertical sleeve (42). The second right vertical sleeve (42) cooperates with the first right vertical sleeve (41). The lower part of the second right vertical sleeve (42) extends out of the bottom end of the first right vertical sleeve (41) and is fixedly connected to the top end of the upper outer sleeve (61) of the bottom support leg device (60) by bolts.

7. A temporary shore apparatus for a single-side bridge girder bridge erecting machine according to claim 6, characterized in that: The front and rear walls of the second right vertical sleeve (42) are formed with a plurality of corresponding connecting through holes, and the lower front and rear walls of the first right vertical sleeve (41) are formed with positioning through holes corresponding to the connecting through holes.

8. A temporary shore apparatus for a single-side bridge girder bridge erecting machine according to claim 6, characterized in that: The bottom support leg device (60) includes an upper outer sleeve (61) with a rectangular cross-section. Two connecting blocks (62) are fixed on the left and right side walls of the bottom of the upper outer sleeve (61). A bottom sleeve (63) is inserted into the lower part of the upper outer sleeve (61). The outer side wall of the bottom sleeve (63) is close to and cooperates with the inner side wall of the upper outer sleeve (61). An upper connecting seat is fixed on the top of the upper outer sleeve (61). A second hydraulic cylinder (64) with an external displacement sensor is inserted into the upper outer sleeve (61) and the bottom sleeve (63). The top of the second hydraulic cylinder (64) is movably connected to the upper connecting seat through a hinge shaft. The bottom end of the push rod of the second hydraulic cylinder (64) is movably connected to the lower connecting seat through a hinge shaft. The lower connecting seat is fixed on the top surface of the bottom plate of the bottom sleeve (63).

9. A temporary shore apparatus for a single-side bridge girder bridge girder erecting machine according to claim 8, characterized in that: An oblique support beam (22) is fixed to the right side of the support beam (20), and the bottom end of the oblique support beam (22) is fixed to the first right vertical sleeve (41) by bolts.

10. A temporary shore apparatus for a single-side bridge girder bridge girder erecting machine according to claim 8, characterized in that: The upper outer sleeve (61) has corresponding connecting through holes formed on its front and rear wall plates, and the bottom sleeve (63) has multiple corresponding positioning through holes formed on its front and rear wall plates. All positioning through holes correspond to the corresponding connecting through holes.

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