Automatic storage device and process for track of bridge girder erection machine

Abstract

The invention discloses a bridge girder erection machine track automatic storage device and process, the bridge girder erection machine track automatic storage device comprises an I-shaped frame used for supporting a main track and a C-shaped I-shaped frame used for supporting an auxiliary track, and a curved wheel structure used for storing the auxiliary track is installed in the I-shaped frame; the I-shaped frame comprises two fixed plates arranged in a spaced mode and supporting plates fixed to the tops and the bottoms of the two fixed plates, and the fixed plates are provided with S-shaped cam grooves; the curved wheel structure is mounted in a gap between the two fixing plates; the curved wheel structure comprises a sliding guide block, the sliding guide block is rotationally provided with a rotating shaft penetrating through the sliding guide block, the two ends of the rotating shaft extend out of the sliding guide block and are fixedly connected with swing rods respectively, the two swing rods are hinged to a dowel bar arranged on one side of the sliding guide block through pin shafts, and the dowel bar extends out of the I-shaped frame and is fixedly connected with the C-shaped I-shaped frame; by means of the design, the technical problems that during approach bridge construction, transported and dismantled beam plates occupy roads for a long time, and wharf production and operation are seriously affected are solved.

Description

Technical Field

[0001] The invention relates to the field of water transport engineering approach bridge dismantling, and in particular to an automatic track collecting device and a collecting process for a bridge erection machine. Background Art

[0002] Traditional bridge-erecting machines are mainly used in the beam and slab installation process in bridge projects. After the casting of pile foundation piers is completed, the bridge-erecting machine is used to install the beam and slab. The bridge-erecting machine mainly moves longitudinally along the axis of the bridge, and the lateral movement is also carried out within the established track length.

[0003] In an unprotected offshore area, when the approach bridge connecting the approach dike to the front of the wharf was dismantled and a new construction project was built on the original site, in order to save project costs, no temporary steel trestle was set up. The original approach bridge was used as a construction platform for pile foundation construction, and onshore piling equipment was used to open holes in the original hollow slab. A bridge erection machine was used to dismantle the old approach bridge. The main construction process was: opening holes in half of the bridge deck → steel casing vibration sinking → cast-in-place pile construction → dismantling of old beams and slabs → cast-in-place beams → prefabrication and installation of hollow slabs → hinged joint construction → surface layer construction → ancillary facilities construction → traffic restoration → width change construction.

[0004] Considering that the construction of the approach bridge cannot affect the production and operation of the terminal, the construction arrangement is to close half of the bridge and construct half of the bridge, with half of the bridge used as the construction area and the other half used as the cargo transportation channel of the terminal. The original hollow slab is a prestressed hollow slab structure. To ensure the safety of construction, the prestressed structure is damaged after the bridge deck is opened, and the bearing capacity is weakened. Heavy-loaded vehicles are prohibited from driving. Therefore, in order to transport the dismantled beams and slabs in the construction half longitudinally, it is necessary to lay tracks on the bridge deck, and the bridge erection machine moves horizontally along the tracks to transport the dismantled beams and slabs to the other half, and then transport them out by heavy-loaded vehicles. To facilitate vehicle traffic, the horizontal tracks cannot occupy the road for a long time.

[0005] In order to solve the above problems, our company provides an automatic track retracting device for bridge-building machines, which can ensure that the track can be extended at any time to facilitate the lateral movement of the bridge-building machine, and can also be retracted in time to facilitate the passage of vehicles. Summary of the invention

[0006] The purpose of the present invention is to overcome the defects in the prior art and provide a bridge erection machine track automatic assembling device and assembling process.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An automatic rail receiving and assembling device for a bridge erection machine comprises an I-shaped frame for supporting a main rail and a C-shaped I-shaped frame for supporting an auxiliary rail, wherein a curved wheel structure for receiving and assembling the auxiliary rail is installed in the I-shaped frame;

[0009] The I-shaped frame includes two fixed plates arranged at intervals, and support plates fixed to the top and bottom of the two fixed plates. The fixed plates are provided with an S-shaped cam groove, and the cam groove includes a push-out portion for pushing the auxiliary track out horizontally, a flipping portion for flipping the auxiliary track upward, and a limit portion, and the push-out portion, the flipping portion and the limit portion are connected in sequence; the curved wheel structure is installed in the gap between the two fixed plates;

[0010] The curved wheel structure includes a sliding guide block, which is rotatably installed with a rotating shaft that passes through the sliding guide block. Both ends of the rotating shaft extend out of the sliding guide block and are fixedly connected to swing rods. The two swing rods are hinged to a force transmission rod arranged on one side of the sliding guide block through a pin shaft. The force transmission rod extends out of the I-frame and is fixedly connected to the C-shaped I-frame. Both ends of the pin shaft extend into the cam groove and are provided with cams that match the cam groove. One side of the sliding guide block of the curved wheel structure is connected to the output end of the driving mechanism to realize linear reciprocating motion.

[0011] Preferably, the sliding guide block is provided with a concave platform, and the force transmission rod is provided with a notch matching the concave platform, and the concave platform and the notch are adapted to make the auxiliary track flip upward (80-90) degrees.

[0012] Preferably, the push-out portion of the cam groove has a length of (34-36) cm.

[0013] Preferably, the end of the force transmission rod is fixedly connected to the C-shaped I-frame by means of fixing bolts.

[0014] Preferably, the driving mechanism is a telescopic cylinder, and the output end of the telescopic cylinder is fixedly connected to the sliding guide block of the curved wheel structure.

[0015] Preferably, the sliding guide block is rotatably mounted with a rotating shaft passing through the sliding guide block via a large bearing.

[0016] Preferably, rollers are provided at both ends of the pin shaft located in the cam groove via small bearings.

[0017] Preferably, the angle between the swing rod and the force transmission rod is (130-135) degrees.

[0018] Preferably, the support plate located at the bottom of the two fixed plates is provided with a track for the linear reciprocating motion of the sliding guide block.

[0019] Preferably, the main track is connected to the I-frame by welding, and the auxiliary track is connected to the C-shaped I-frame by welding.

[0020] A bridge erection machine track automatic installation process, in which a bridge erection machine track automatic installation device is used during the installation process, specifically comprising the following steps:

[0021] 1) Check whether the inner wall of the cam groove is smooth;

[0022] 2) Check whether the shaft rotates smoothly;

[0023] 3) Start the driving mechanism to complete the installation of the main track and the auxiliary track.

[0024] Preferably, the step 3) is specifically:

[0025] When the secondary track is folded up: the driving mechanism pushes the sliding guide block laterally to drive the large bearing to rotate, so that the pin moves laterally (34-36) cm along the push-out part of the cam groove, and then moves to the flipping part to drive the swing rod and the force transmission rod to complete the counterclockwise upward (80-90) degree flipping to fold up the width track;

[0026] When installing the secondary track: the driving mechanism pulls the sliding guide block to drive the large bearing to rotate, so that the pin shaft moves along the limiting part and the turning part of the cam groove, and after the track is turned clockwise downward (80-90) degrees and placed, it retracts horizontally (34-36) cm along the pushing part, so that the secondary track is aligned with the main track to complete the installation of the secondary track.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) There is no need to repeatedly dismantle the extended track beam during construction;

[0029] (2) Using this process and equipment can avoid repeated disassembly that consumes manpower and cranes;

[0030] (3) This equipment and process will not affect the operation of existing roads for a long time when extending the track beams, and each time will take less than 45 minutes;

[0031] (4) This equipment and process are driven by automated construction, which greatly improves construction efficiency, which is 2-3 times that of traditional processes; and the construction cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic diagram of the auxiliary track of the present invention turning upward;

[0033] Figure 2 It is a schematic diagram of the structure of the crankshaft of the present invention;

[0034] Figure 3 It is a schematic diagram of the overall structure of the present invention.

[0035] In the figure: 100, main track; 200, auxiliary track; 1, I-shaped frame; 11, fixed plate; 12, support plate; 13, cam groove; 131, ejection part; 132, flipping part; 133, limit part; 2, C-shaped I-shaped frame; 3, curved wheel structure; 31, sliding guide block; 311, large bearing; 312, concave platform; 32, rotating shaft; 33, swing rod; 34, force transmission rod; 341, notch; 35, pin shaft; 351, cam; 4, driving mechanism. DETAILED DESCRIPTION

[0036] A preferred embodiment of the present invention will be described below in conjunction with the accompanying drawings to clearly and completely describe the technical solution in a preferred embodiment of the present invention.

[0037] Embodiment 1:

[0038] An automatic rail receiving and assembling device for a bridge erection machine comprises an I-shaped frame 1 for supporting a main rail 100 and a C-shaped I-shaped frame 2 for supporting an auxiliary rail 200, wherein a curved wheel structure 3 for receiving and assembling the auxiliary rail 200 is installed in the I-shaped frame 1;

[0039] The I-shaped frame 1 includes two fixed plates 11 arranged at intervals, and support plates 12 fixed to the top and bottom of the two fixed plates 11. The fixed plates 11 are provided with an S-shaped cam groove 13. The cam groove 13 includes a push-out portion 131 for pushing out the auxiliary rail 200 laterally, a flipping portion 132 for flipping the auxiliary rail 200 upward, and a limit portion 133. The push-out portion 131, the flipping portion 132, and the limit portion 133 are connected in sequence. The curved wheel structure 3 is installed in the gap between the two fixed plates 11.

[0040] The curved wheel structure 3 includes a sliding guide block 31, on which a rotating shaft 32 penetrating the sliding guide block 31 is rotatably installed. Both ends of the rotating shaft 32 extend out of the sliding guide block 31 and are fixedly connected to swing rods 33. The two swing rods 33 are hinged to a force transmission rod 34 arranged on one side of the sliding guide block 31 through a pin shaft 35. The force transmission rod 34 extends out of the I-frame 1 and is fixedly connected to the C-shaped I-frame 2. Both ends of the pin shaft 35 extend into the cam groove 13 and are provided with cams 351 matching the cam groove 13. One side of the sliding guide block 31 of the curved wheel structure 3 is connected to the output end of the driving mechanism 4 to realize linear reciprocating motion.

[0041] During the construction of the approach bridge, in order not to affect the production and operation of the terminal, only half of the road is used as the construction area, and the other half is used as the cargo transportation channel of the terminal. The entire bridge deck of the approach bridge is 15 meters wide. The bridge erection machine track of the present invention is divided into two parts: the main track 100 and the auxiliary track 200. The main track 100 is 9 meters long, and the auxiliary track 200 is 3-5 meters long. An I-shaped frame 1 is placed under the main track 100, and a C-shaped I-shaped frame 2 is fixed at the bottom of the auxiliary track 200. Figure 1 As shown, it is necessary to ensure that when the terminal vehicle is running, the main track 100 and the auxiliary track 200 are (80-90) degrees; Figure 2 As shown, when the dismantled beam slab needs to be transported, the main track 100 and the auxiliary track 200 are 180 degrees apart.

[0042] When the main track 100 and the auxiliary track 200 are at an angle of (80-90) degrees: the driving mechanism 4 pushes the sliding guide block 31 laterally to drive the large bearing 311 to operate, so that the pin shaft 35 moves laterally (34-36) cm along the push-out portion 131 of the cam groove 13, and then moves to the flipping portion 132 to drive the swing rod 33 and the force transmission rod 34 to flip upward (80-90) degrees counterclockwise to complete the retracting action of the width track 200, and at this time, the normal traffic on the half-auxiliary road can be guaranteed;

[0043] When the main track 100 and the auxiliary track 200 are 180 degrees, the driving mechanism 4 pulls the sliding guide block 31, drives the large bearing 311 to rotate, and makes the two ends of the pin shaft 35 move back along the limiting part 133 and the turning part 132 of the cam groove 13, completes the clockwise downward (80-90) degree turning of the track 200, and then retracts horizontally (34-36) cm along the pushing part 131 to Figure 2 position so that the secondary track 200 is aligned with the main track 100 to complete the installation of the secondary track 200. At this time, the bridge erection machine can transport the beam slab laterally along the main track 100 and the secondary track 200.

[0044] Specifically, the push-out portion 131 of the cam groove 13 has a length of (34-36) cm.

[0045] Through the above design, in order to ensure that the auxiliary track 200 has a sufficient operating angle when flipping, the cam groove 13 is provided with a push-out portion 131, a flipping portion 132 and a limit portion 133. When the pin shaft 35 and the cams 351 at both ends move to the push-out portion 131, the main track 100 and the auxiliary track 200 can be pulled apart by (34-36) cm, so that there is sufficient operating space during the flipping action. The limit portion 133 is to prevent the pin shaft 35 and the cams 351 at both ends from falling back into the flipping portion 132 to cause an engineering accident.

[0046] Specifically, the sliding guide block 31 is provided with a concave platform 312, and the force transmission rod 34 is provided with a notch 341 matching the concave platform 312. The concave platform 312 and the notch 341 are adapted to make the auxiliary track 200 flip upward (80-90) degrees.

[0047] Specifically, the end of the force transmission rod 34 is fixedly connected to the C-shaped I-frame 2 via a fixing bolt 5 .

[0048] Specifically, the driving mechanism 4 is a telescopic cylinder, and the output end of the telescopic cylinder is fixedly connected to the sliding guide block 31 of the curved wheel structure 3.

[0049] Specifically, the sliding guide block 31 is rotatably mounted with a rotating shaft 32 that penetrates the sliding guide block 31 via a large bearing 311 .

[0050] Specifically, rollers are provided at both ends of the pin shaft 35 located in the cam groove 13 via small bearings.

[0051] Specifically, the angle between the swing rod 33 and the force transmission rod 34 is (130-135) degrees.

[0052] Specifically, the support plate 12 located at the bottom of the two fixed plates 11 is provided with a track for the linear reciprocating motion of the sliding guide block 31 .

[0053] The present invention ensures the linear motion trajectory of the sliding guide block 31 through the above design, and prevents the pin shaft 35 and the cam 351 from getting stuck when moving in the cam groove 13 .

[0054] Embodiment 2:

[0055] A bridge erection machine track automatic installation process, in which a bridge erection machine track automatic installation device is used during the installation process, specifically comprising the following steps:

[0056] 1) Check whether the inner wall of the cam groove 13 is smooth;

[0057] 2) Check whether the rotating shaft 32 rotates smoothly;

[0058] 3) Start the driving mechanism 4 to complete the installation of the main track 100 and the auxiliary track 200.

[0059] Specifically, the step 3) is as follows:

[0060] When the secondary track 200 is folded up: the driving mechanism 4 pushes the sliding guide block 31 laterally to drive the large bearing 311 to operate, so that the pin shaft 35 moves laterally (34-36) cm along the push-out portion 131 of the cam groove 13, and then moves to the flipping portion 132 to drive the swing rod 33 and the force transmission rod 34 to complete the counterclockwise upward (80-90) degree flipping to fold up the width track;

[0061] When installing the secondary track 200: the driving mechanism 4 pulls the sliding guide block 31 to drive the large bearing 311 to operate, so that the pin shaft 35 moves along the limiting portion 133 and the flipping portion 132 of the cam groove 13, and after completing the clockwise downward (80-90) degree flipping to place the track, it then retracts laterally (34-36) cm along the pushing portion 131, so that the secondary track 200 is aligned with the main track 100 to complete the installation of the secondary track 200.

[0062] Through the above design, the present invention 1) solves the problem that the bridge-building machine cannot move laterally due to insufficient track length; 2) ensures that the extended track can be retracted and released at any time, avoiding the problem of long-term road closure due to lateral extension and movement; 3) provides a safe and efficient automatic device for extending the track of the bridge-building machine, reducing safety risks during the demolition process and improving demolition efficiency.

[0063] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic rail assembling device for a bridge erection machine, characterized in that: It comprises an I-shaped frame (1) for supporting a main track (100) and a C-shaped I-shaped frame (2) for supporting a secondary track (200); a curved wheel structure (3) for receiving and accommodating the secondary track (200) is installed in the I-shaped frame (1); The I-shaped frame (1) comprises two fixed plates (11) arranged at intervals, and support plates (12) fixed to the top and bottom of the two fixed plates (11); the fixed plates (11) are provided with an S-shaped cam groove (13); the cam groove (13) comprises a push-out portion (131) for pushing out the auxiliary track (200) laterally, a flipping portion (132) for flipping the auxiliary track (200) upward, and a limit portion (133); the push-out portion (131), the flipping portion (132) and the limit portion (133) are connected in sequence; the curved wheel structure (3) is installed in the gap between the two fixed plates (11); The curved wheel structure (3) comprises a sliding guide block (31), the sliding guide block (31) is rotatably mounted with a rotating shaft (32) penetrating the sliding guide block (31), both ends of the rotating shaft (32) extend out of the sliding guide block (31) and are fixedly connected to swing rods (33), the two swing rods (33) are hingedly connected to a force transmission rod (34) arranged on one side of the sliding guide block (31) through a pin shaft (35), the force transmission rod (34) extends out of the I-shaped frame (1) and is fixedly connected to the C-shaped I-shaped frame (2), both ends of the pin shaft (35) extend into the cam groove (13) and are provided with cams (351) matching the cam groove (13); one side of the sliding guide block (31) of the curved wheel structure (3) is connected to the output end of the driving mechanism (4) to realize linear reciprocating motion.

2. The automatic rail assembling device for bridge erection machine according to claim 1 is characterized in that: The length of the push-out portion (131) of the cam groove (13) is (34-36) cm.

3. The automatic rail assembling device for a bridge erection machine according to claim 1 is characterized in that: The sliding guide block (31) is provided with a concave platform (312), and the force transmission rod (34) is provided with a notch (341) matching the concave platform (312). The concave platform (312) and the notch (341) are adapted to allow the auxiliary track (200) to flip upward (80-90) degrees.

4. The automatic rail assembling device for bridge erection machine according to claim 1 is characterized in that: The driving mechanism (4) is a telescopic cylinder, and the output end of the telescopic cylinder is fixedly connected to the sliding guide block (31) of the curved wheel structure (3).

5. The automatic rail assembling device for bridge erection machine according to claim 1 is characterized in that: The sliding guide block (31) is rotatably mounted with a rotating shaft (32) penetrating the sliding guide block (31) via a large bearing (311).

6. The automatic rail assembling device for bridge erection machine according to claim 1 is characterized in that: Rollers are arranged at both ends of the pin shaft (35) located in the cam groove (13) via small bearings.

7. The automatic rail assembling device for a bridge erection machine according to claim 1 is characterized in that: The angle between the swing rod (33) and the force transmission rod (34) is (130-135) degrees.

8. The automatic rail assembling device for bridge erection machine according to claim 1 is characterized in that: A support plate (12) located at the bottom of the two fixed plates (11) is provided with a track for the linear reciprocating motion of the sliding guide block (31).

9. A bridge erection machine track automatic assembly process, characterized in that: The automatic rail loading device for the bridge erection machine according to any one of claims 1 to 8 is used during the loading process, and specifically comprises the following steps: 1) Check whether the inner wall of the cam groove (13) is smooth; 2) Check whether the rotating shaft (32) rotates smoothly; 3) Starting the driving mechanism (4) to complete the installation of the main track (100) and the auxiliary track (200).

10. The automatic rail installation process for bridge erection machine according to claim 9, characterized in that: The step 3) is specifically as follows: When the auxiliary track (200) is folded up: the driving mechanism (4) pushes the sliding guide block (31) laterally to drive the large bearing (311) to operate, and at the same time, the pin shaft (35) moves laterally (34-36) cm along the push-out portion (131) of the cam groove (13), and then moves to the flipping portion (132) to drive the swinging rod (33) and the force transmission rod (34) to complete the counterclockwise upward (80-90) degree flipping to fold up the width track; When installing the auxiliary track (200), the driving mechanism (4) pulls the sliding guide block (31) to drive the large bearing (311) to operate, and at the same time, the pin shaft (35) moves along the limiting portion (133) and the turning portion (132) of the cam groove (13), and after the track is turned clockwise downward (80-90) degrees and placed, it is laterally retracted (34-36) cm along the pushing portion (131), and the auxiliary track (200) is aligned with the main track (100) to complete the installation of the auxiliary track (200).

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