Double-girder portal bridge girder erection machine with high safety

Abstract

The utility model discloses a double girder gate type bridge girder erection machine of high safety, including main part, connecting mechanism, support mechanism and operating mechanism, connecting mechanism includes moving foot, main roller, auxiliary roller, barrier board, inner roller, connecting bolt and guide rail, support mechanism includes support board, sliding sleeve, alignment frame and support hydraulic cylinder, and the operating mechanism includes the main part, main roller, auxiliary roller, barrier board, inner roller, connecting bolt and guide rail, support board, sliding sleeve, alignment frame and support hydraulic cylinder. The running mechanism comprises a fixed hydraulic cylinder, a fixed plate, a sliding block, a driving motor and a forward gear, and under the mutual matching action of the mechanisms, the bridge girder erection machine can stably and efficiently move on the guide rail by using a simple mechanical mechanism; foreign matters (such as stones, garbage and the like) on the guide rails can be prevented from affecting movement of the bridge girder erection machine while the bridge girder erection machine moves, and the device can be driven by the supporting hydraulic cylinders, so that the movable feet and the supporting plates can be conveniently and quickly replaced.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a double-girder portal bridge erecting machine with high safety. Background Art

[0002] The double-girder gantry crane is a large-scale engineering machinery equipment, mainly used in the construction process of bridge construction. It is a special gantry crane with two main beam structures and can move on tracks.

[0003] If the bridge-building machine does not have the function of facilitating movement on the guide rail and preventing foreign objects on the guide rail (such as stones, mud, etc.) from affecting the movement of the bridge-building machine, the movement of the bridge-building machine will be more time-consuming and labor-intensive. In addition, when the bridge-building machine encounters foreign objects and suddenly gets stuck during movement, it may cause the equipment to deviate from the track or even fall over, posing a serious safety risk.

[0004] Secondly, without the function of conveniently replacing the moving feet and support plates, the parts replacement process will become difficult and time-consuming. If the moving feet are used for support when the bridge crane lifts heavy objects, the moving feet and the rollers on the moving feet may wear or deform under long-term load.

[0005] Finally, if the bridge-building machine lacks the function of hydraulic cylinders or motors to work together, the movement of the bridge-building machine will lack precise control, especially when performing operations such as lifting and leg adjustment, it will not be able to achieve smooth and accurate positioning. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the deficiencies in the prior art, the utility model provides a double-girder gantry bridge erecting machine with high safety.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a highly safe double-girder gantry bridge erecting machine, comprising a main body, a connecting mechanism, a supporting mechanism and an operating mechanism, the connecting mechanism comprising a moving foot, a main roller, an auxiliary roller, a de-obstruction plate, an inner roller, a connecting bolt and a guide rail, the rear supporting foot is installed at the rear end of the main body, the main roller and the auxiliary roller are installed inside the moving foot, the de-obstruction plate is installed on the moving foot and is rotatably connected to the rear moving frame, the inner roller is installed on the moving foot, the connecting bolt is installed on the moving foot and is detachably connected to the moving foot, the moving foot is slidably connected to the guide rail, the supporting mechanism comprises a support plate, a sliding sleeve, an alignment frame and a supporting hydraulic cylinder, the support plate is detachably connected to the connecting bolt, the sliding sleeve is installed inside the support plate and is slidably connected to the support plate, the alignment frame is installed on the sliding sleeve and is detachably connected to the sliding sleeve, and the supporting hydraulic cylinder is detachably connected to the support plate.

[0010] Preferably, the operating mechanism comprises a fixed hydraulic cylinder, a fixed plate, a sliding block, a driving motor and a forward gear, the fixed hydraulic cylinder is fixedly installed on the main body and the sliding block, the fixed plate is fixedly installed at the bottom of the fixed hydraulic cylinder, the sliding block is installed on the main body and is in sliding connection with the main body, the driving motor is fixedly installed on the sliding block, and the forward gear is installed at the output end of the driving motor and is in meshing connection with the main body.

[0011] Preferably, the main body is provided with a crane and a fixed support leg, the crane is in sliding connection with the main body, and the fixed support body is arranged at the front and rear ends of the main body, so that the operation of the whole device is facilitated.

[0012] Preferably, the guide rail is provided with a first sliding groove and a pressure distribution groove, the main roller, the inner roller and the barrier plate slide in the first sliding groove, and the auxiliary roller slides in the pressure distribution groove, so that the movement of the moving foot and the support of the main body are facilitated.

[0013] Preferably, the support plate slides on the guide rail, the support plate is provided with a second sliding groove and a first embedding hole, the sliding sleeve slides in the second sliding groove, and the output end of the support hydraulic cylinder is in detachable connection with the first embedding hole, so that the operation of the support mechanism is facilitated.

[0014] Preferably, the sliding sleeve is provided with a second embedding hole, the alignment frame is provided with an embedding rod, and the embedding rod is in detachable connection with the second embedding hole, so that the installation of the alignment frame and the sliding sleeve is facilitated.

[0015] Preferably, the support plate is provided with a pressure bearing block, and the pressure bearing block slides in the first sliding groove and the pressure distribution groove respectively, so that the damage of the guide rail caused by excessive pressure of the main body on the guide rail during the operation of the support mechanism is reduced.

[0016] Preferably, the main body is provided with a matching tooth, the forward gear is in meshing connection with the matching tooth, and one end of the support hydraulic cylinder is fixedly installed on the fixed support leg, so that the movement and support of the device are facilitated.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the double-girder portal bridge machine has the following beneficial effects:

[0019] In the utility model, a connecting mechanism is provided, and with the mutual cooperation of components such as the moving feet, main rollers, auxiliary rollers, obstacle removal plates, inner rollers, connecting bolts and guide rails, the bridge-building machine can use a simple mechanical mechanism to achieve smooth and efficient movement on the guide rails, and at the same time, foreign objects (such as stones, garbage, etc.) on the guide rails can be prevented from affecting the movement of the bridge-building machine.

[0020] In the present invention, a support mechanism is provided. Under the mutual cooperation of components such as the support plate, the sliding sleeve, the alignment frame and the support hydraulic cylinder, the device can be driven by the support hydraulic cylinder to facilitate the rapid replacement of the movable foot and the support plate. Secondly, the use of the support plate reduces the pressure on the guide rail when the main body is fixed, thereby preventing damage to the guide rail.

[0021] In the present invention, an operating mechanism is provided, and with the mutual cooperation of components such as a fixed hydraulic cylinder, a fixed plate, a sliding block, a driving motor and a forward gear, the various mechanisms of the bridge-building machine can work in precise coordination, thereby ensuring that the operation of the bridge-building machine is easier. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of a double-girder gantry bridge erecting machine with high safety in the utility model;

[0023] Figure 2 This is an exploded view of the operating mechanism of the present utility model;

[0024] Figure 3 This is an exploded view of the connection mechanism in the present utility model;

[0025] Figure 4 This is a top view of the overall structure of the moving foot in the utility model;

[0026] Figure 5 This is an exploded view of the support mechanism in the present invention.

[0027] In the figure: 1. Main body; 2. Moving foot; 3. Main roller; 4. Auxiliary roller; 5. Obstacle removal plate; 6. Inner roller; 7. Connecting bolt; 8. Guide rail; 9. Support plate; 10. Sliding sleeve; 11. Alignment frame; 12. Support hydraulic cylinder; 13. Fixed hydraulic cylinder; 14. Fixed plate; 15. Sliding block; 16. Driving motor; 17. Forward gear; 18. Crane; 19. Fixed support leg; 20. First slide groove; 21. Pressure dividing groove; 22. Second slide groove; 23. First interlocking hole; 24. Second interlocking hole; 25. Interlocking rod; 26. Pressure block; 27. Mating tooth. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] Example 1:

[0030] See also Figure 1-Figure 5 The gantry crane 12 is a double-girder gantry bridge erecting machine with high safety, comprising a main body 1, a connecting mechanism, a supporting mechanism and an operating mechanism. The connecting mechanism comprises a moving foot 2, a main roller 3, an auxiliary roller 4, a de-obstruction plate 5, an inner roller 6, a connecting bolt 7 and a guide rail 8. The rear supporting foot is mounted on the rear end of the main body 1, the main roller 3 and the auxiliary roller 4 are mounted inside the moving foot 2, the de-obstruction plate 5 is mounted on the moving foot 2 and is rotatably connected to the rear moving frame, the inner roller 6 is mounted on the moving foot 2, the connecting bolt 7 is mounted on the moving foot 2 and is detachably connected to the moving foot 2, the moving foot 2 is slidably connected to the guide rail 8, and the supporting mechanism comprises a supporting plate 9, a sliding sleeve 10, an alignment frame 11 and a supporting hydraulic cylinder 12, the supporting plate 9 is detachably connected to the connecting bolt 7, the sliding sleeve 10 is mounted inside the supporting plate 9 and is slidably connected to the supporting plate 9, the alignment frame 11 is mounted on the sliding sleeve 10 and is detachably connected to the sliding sleeve 10, and the supporting hydraulic cylinder 12 is detachably connected to the support plate 9.

[0031] In this embodiment, the connecting mechanism includes a moving foot 2, a main roller 3, an auxiliary roller 4, a barrier plate 5, an inner roller 6, a connecting bolt 7 and a guide rail 8. When in use, the main body 1 needs to move. At this time, the moving foot 2 installed on the fixed support leg 19 at the rear end of the main body 1 is driven, so that the main roller 3 and the inner roller 6 rotate in the first slide groove 20, while the auxiliary roller 4 slides in the pressure divider groove 21. At the same time, when the auxiliary roller 4 rotates, the barrier plate 5 also slides in the first slide groove 20, so as to push away foreign objects that may exist in the first slide groove 20 to prevent it from affecting the sliding of the main roller 3 in the guide rail 8. When the moving foot 2 moves, the support plate 9 that is detachably connected to the moving foot 2 through the connecting bolt 7 also slides on the guide rail 8 at the same time.

[0032] In this embodiment, the support mechanism includes a support plate 9, a sliding sleeve 10, an alignment frame 11 and a support hydraulic cylinder 12. When in use, when the main body 1 needs to lift heavy objects and install a bridge, it is necessary to disassemble the moving foot 2 and disassemble the moving foot 2 installed on the support hydraulic cylinder 12 to replace the support plate 9 to prevent the moving foot 2 from being damaged due to the weight when installing the heavy object. At this time, the support plate 9 is no longer fixed on the moving foot 2 by removing the connecting bolt 7. At this time, the moving foot 2 is moved away and the support hydraulic cylinder 12 is operated. The output end is retracted and the support plate 9 is pulled. At this time, the pressure block 26 on the support plate 9 slides in the first slide groove 20 and the pressure dividing groove 21 respectively. At this time, the engaging rod 25 on the alignment frame 11 is aligned with the second engaging hole 24 on the sliding sleeve 10 and inserted. Then the alignment frame 11 is pushed to make the sliding sleeve 10 slide in the second slide groove 22, thereby completing the process of positioning the output end of the support hydraulic cylinder 12. At this time, the support hydraulic cylinder 12 is driven, and its output end is directly inserted into the first engaging hole 23 in the support plate 9, thereby completing the fixation of the support plate 9.

[0033] In this embodiment, the operating mechanism includes a fixed hydraulic cylinder 13, a fixed plate 14, a sliding block 15, a driving motor 16 and a forward gear 17. When in use, the fixed hydraulic cylinder 13 provides a lifting or supporting effect for the main body 1 to facilitate the movement of the main body 1, and in this process, the fixed plate 14 increases the contact area between the output end of the fixed hydraulic cylinder 13 and the ground, thereby making the main body 1 more stable, and the sliding block 15 adjusts its own position according to the degree of movement of the main body 1, thereby facilitating the operation of the main body 1. At this time, the driving motor 16 is running, causing the forward gear 17 to rotate and engage with the matching teeth 27 on the main body 1, thereby pushing the sliding block 15 to move on the main body 1, completing the change of the position of the sliding block 15, supporting the operation of the hydraulic cylinder 12 and the fixed hydraulic cylinder 13, raising the overall height of the main body 1, and the crane 18 is running to lift the bridge and then transport it, thereby completing the work of the bridge erection machine to install the bridge.

[0034] Example 2:

[0035] To sum up, when in use, first move the main body 1, and at this time the moving foot 2 installed on the fixed support leg 19 at the rear end of the main body 1 is driven, so that the main roller 3 and the inner roller 6 rotate in the first slide groove 20, and the auxiliary roller 4 slides in the pressure dividing groove 21. At the same time, when the auxiliary roller 4 rotates, the obstacle removal plate 5 also slides in the first slide groove 20, so as to push away any foreign matter that may exist in the first slide groove 20, and prevent it from affecting the sliding of the main roller 3 in the guide rail 8. In addition, when the moving foot 2 moves, the support plate 9 detachably connected to the moving foot 2 through the connecting bolt 7 also moves at the same time. After sliding on the guide rail 8 and the moving position is fixed, the bridge is transported and the support plate 9 is replaced. First, the moving foot 2 is disassembled and the moving foot 2 installed on the supporting hydraulic cylinder 12 is disassembled to replace the support plate 9 to prevent the moving foot 2 from being damaged due to the weight when installing heavy objects. At this time, the support plate 9 is no longer fixed on the moving foot 2 by removing the connecting bolt 7. At this time, the moving foot 2 is transferred away and the supporting hydraulic cylinder 12 is operated to recycle the output end and pull the support plate 9. At this time, the pressure blocks 26 on the support plate 9 slide in the first slide groove 20 and the pressure dividing groove 21 respectively. The engaging rod 25 on the alignment frame 11 is aligned with the second engaging hole 24 on the sliding sleeve 10 and inserted, and then the alignment frame 11 is pushed to make the sliding sleeve 10 slide in the second slide groove 22, thereby completing the process of positioning the output end of the supporting hydraulic cylinder 12. At this time, the supporting hydraulic cylinder 12 is driven, and its output end is directly inserted into the first engaging hole 23 in the supporting plate 9, thereby completing the fixation of the supporting plate 9. When the supporting plate 9 is fixed, the bridge is transported at this time, and the fixed hydraulic cylinder 13 provides a lifting or supporting effect for the main body 1 to facilitate the movement of the main body 1, and in this process, the fixed plate 14 increases the fixed hydraulic cylinder 13. The contact area between the output end and the ground makes the main body 1 more stable, and the sliding block 15 adjusts its own position according to the degree of travel of the main body 1, thereby facilitating the operation of the main body 1. At this time, the driving motor 16 is running, causing the forward gear 17 to rotate and engage with the matching teeth 27 on the main body 1, thereby pushing the sliding block 15 to move on the main body 1, completing the change of the position of the sliding block 15, supporting the operation of the hydraulic cylinder 12 and the fixed hydraulic cylinder 13, raising the overall height of the main body 1, and the crane 18 is running to lift the bridge and then transport it, thereby completing the work of the bridge erection machine to install the bridge.

[0036] In all the schemes mentioned above, the connection between the two components can be selected according to actual conditions by welding, bolt and nut connection, bolt or screw connection or other well-known connection methods, which will not be listed here one by one. In the above, all fixed connections are preferably welded. Although the embodiments of the present invention have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A double-girder gantry bridge erection machine with high safety, comprising a main body (1), a connecting mechanism, a supporting mechanism and an operating mechanism, characterized in that: The connecting mechanism comprises a moving foot (2), a main roller (3), an auxiliary roller (4), a barrier plate (5), an inner roller (6), a connecting bolt (7) and a guide rail (8); the moving foot (2) is mounted on the rear end of the main body (1); the main roller (3) and the auxiliary roller (4) are mounted inside the moving foot (2); the barrier plate (5) is mounted on the moving foot (2) and is rotatably connected to the rear moving frame; the inner roller (6) is mounted on the moving foot (2); the connecting bolt (7) is mounted on the moving foot (2) and is rotatably connected to the moving foot (2); The movable foot (2) is slidably connected to the guide rail (8), and the supporting mechanism comprises a supporting plate (9), a sliding sleeve (10), an alignment frame (11) and a supporting hydraulic cylinder (12). The supporting plate (9) is detachably connected to the connecting bolt (7), the sliding sleeve (10) is installed inside the supporting plate (9) and is slidably connected to the supporting plate (9), the alignment frame (11) is installed on the sliding sleeve (10) and is detachably connected to the sliding sleeve (10), and the supporting hydraulic cylinder (12) is detachably connected to the supporting plate (9).

2. The highly safe double-girder gantry bridge erecting machine according to claim 1, characterized in that: The operating mechanism comprises a fixed hydraulic cylinder (13), a fixed plate (14), a sliding block (15), a driving motor (16) and a forward gear (17); the fixed hydraulic cylinder (13) is fixedly mounted on the main body (1) and the sliding block (15); the fixed plate (14) is fixedly mounted on the bottom of the fixed hydraulic cylinder (13); the sliding block (15) is mounted on the main body (1) and is slidably connected to the main body (1); the driving motor (16) is fixedly mounted on the sliding block (15); and the forward gear (17) is mounted on the output end of the driving motor (16) and is meshedly connected to the main body (1).

3. The highly safe double-girder gantry bridge erecting machine according to claim 2, characterized in that: The main body (1) is provided with a crane (18) and fixed support legs (19); the crane (18) is slidably connected to the main body (1); and the fixed support legs (19) are provided at the front and rear ends of the main body (1).

4. The highly safe double-girder gantry bridge erecting machine according to claim 1, characterized in that: The guide rail (8) is provided with a first sliding groove (20) and a pressure dividing groove (21); the main roller (3), the inner roller (6) and the obstacle removal plate (5) slide in the first sliding groove (20); and the auxiliary roller (4) slides in the pressure dividing groove (21).

5. The highly safe double-girder gantry bridge erecting machine according to claim 4, characterized in that: The support plate (9) slides on the guide rail (8); a second sliding groove (22) and a first interlocking hole (23) are provided on the support plate (9); the sliding sleeve (10) slides in the second sliding groove (22); and the output end of the support hydraulic cylinder (12) is detachably connected to the first interlocking hole (23).

6. The highly safe double-girder gantry bridge erecting machine according to claim 1, characterized in that: The sliding sleeve (10) is provided with a second fitting hole (24), and the alignment frame (11) is provided with a fitting rod (25), and the fitting rod (25) is detachably connected to the second fitting hole (24).

7. The highly safe double-girder gantry bridge erecting machine according to claim 5, characterized in that: A pressure block (26) is provided on the support plate (9), and the pressure block (26) slides in the first sliding groove (20) and the pressure dividing groove (21) respectively.

8. The highly safe double-girder gantry bridge erecting machine according to claim 3, characterized in that: The main body (1) is provided with a matching tooth (27), the forward gear (17) is meshedly connected with the matching tooth (27), and one end of the supporting hydraulic cylinder (12) is fixedly mounted on the fixed supporting leg (19).

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