Transportation and erection integrated bridge girder erection machine suitable for single line and double lines

Abstract

The utility model discloses a transporting and erecting integrated bridge girder erection machine suitable for single and double lines, which comprises a main beam, a front vehicle and a rear vehicle which are respectively connected with the front end and the rear end of the main beam; the front hoisting crown block and the rear hoisting crown block are respectively connected with the front end and the rear end of the main beam and are positioned between the front vehicle and the rear vehicle; the main supporting leg is movably connected with the main beam through a change gear system arranged at the upper part of the main supporting leg; the auxiliary supporting leg is arranged in front of the front hoisting crown block and is used for temporarily supporting the leg reversing operation of the bridge girder erection machine; and the lifting system is arranged at the rear end of the main beam. According to the transporting and erecting integrated type bridge girder erection machine, the structure of an original flowing type bridge girder erection machine is improved, multiple purposes are achieved, and the requirement for girder erection construction of 500 t single-line girders and 700 t to 900 t double-line girders of high-speed railway bridges is met. The construction is safe and reliable, the quality is easy to control, the economic cost can be reduced, the construction period can be saved to the maximum extent, a high-speed railway can finish traffic more quickly, and great national economic benefits are created.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge erection devices, in particular to a transport-and-erection integrated bridge erection machine suitable for single and double lines. Background Art

[0002] In recent years, as high-speed rail construction has gradually developed in mountainous areas, the construction of bridges in these areas often encounters construction conditions with both 500t single-line beams and 700t-900t double-line beams. In this case, two different bridge erection machines are required to meet the construction requirements. Traditional transport-and-erection separated bridge erection machines and transport-and-erection integrated machines are suitable for a single beam type and can no longer meet the needs of beam erection under this multi-beam condition.

[0003] In view of this, it is necessary to design a bridge-building machine that can meet the needs. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an integrated transport and erection bridge-building machine that is suitable for single-track and double-track bridges. It overcomes the problem that the bridge-building machines in the prior art can only meet the single function of single-track or double-track bridge erection, thereby providing an integrated transport and erection bridge-building machine that can adapt to the working conditions of single-track and double-track bridge erection at the same time.

[0005] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0006] A transport-and-erection integrated bridge erecting machine suitable for single and double lines, comprising:

[0007] The main beam is used to support the bridge erection machine structure;

[0008] A front car and a rear car, which are respectively connected to the front and rear ends of the main beam and are used for the travel of the bridge erecting machine;

[0009] A front crane and a rear crane are connected to the front and rear ends of the main beam respectively, and are located between the front crane and the rear crane for erecting the bridge;

[0010] A main leg, wherein the main leg is movably connected to the main beam via a pulley system provided on the upper portion of the main leg;

[0011] Auxiliary legs, which are arranged in front of the front crane and are used for temporary support of the leg-reversing operation of the bridge erecting machine;

[0012] A lifting system is arranged at the rear end of the main beam and is used for lifting and moving the bridge structure.

[0013] Preferably, the main beam adopts a layered structure, a reinforcement layer is provided on the upper part of the main beam, and the reinforcement layer is connected to the main beam by bolts.

[0014] Preferably, an automatic lateral wheelbase adjustment device is provided on the upper crossbeam of the front vehicle to adapt to the erection of bridges of different widths.

[0015] Preferably, two types of installation interfaces are provided on the rear vehicle upper cross beam of the rear vehicle and the auxiliary leg upper cross beam of the auxiliary leg to meet the requirements of erecting bridges of different models.

[0016] Preferably, the two mounting interfaces are respectively an outer mounting interface and an inner mounting interface.

[0017] Preferably, the main supporting leg is a triangular structure, and the main supporting leg can move along the main beam through the hanging wheel system.

[0018] The above technical solution of the utility model has the following beneficial effects:

[0019] (1) The integrated transport and erection bridge-building machine for single and double lines of the present application improves the structure of the original mobile bridge-building machine. After simple modification, it can achieve multi-purpose use of one machine and meet the requirements of the beam erection construction of 500t single-line beams and 700t-900t double-line beams of high-speed railway bridges.

[0020] (2) The bridge-erecting machine of the present application is used to carry out bridge-erecting construction in multi-beam sections, which is safe, reliable, and easy to control in quality. It can also reduce economic costs, save construction time to the greatest extent, enable a high-speed railway to be completed and opened to traffic faster, and create great national economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0022] Figure 1 This is a schematic diagram of the structure of the bridge erecting machine of the utility model;

[0023] Figure 2 It is a cross-sectional schematic diagram of the rear vehicle when the bridge erecting machine of the utility model is erecting a double-line beam;

[0024] Figure 3 It is a schematic cross-sectional view of the auxiliary legs when the bridge erecting machine of the utility model is erecting a double-line beam;

[0025] Figure 4 It is a schematic diagram of the cross section of the front vehicle when the bridge erecting machine of the utility model is erecting a double-line beam;

[0026] Figure 5 This is a side view of the front vehicle installation of the bridge erecting machine of the utility model;

[0027] Figure 6 It is a schematic diagram of the cross section of the rear vehicle when the bridge erecting machine of the utility model is erecting a single-line beam;

[0028] Figure 7 It is a schematic cross-sectional view of the auxiliary legs when the bridge erecting machine of the utility model is erecting a single-line beam;

[0029] Figure 8 It is a schematic diagram of the cross section of the front vehicle when the bridge erecting machine of the utility model is erecting a single-line beam;

[0030] Fig. 9 It is a schematic diagram of the position of the front vehicle of the bridge erecting machine of the utility model when passing through the main supporting legs;

[0031] Fig.10 This is a schematic diagram of the second overload hole of the bridge erecting machine of the utility model;

[0032] Fig.11 It is a schematic diagram of the bridge retreating to the bridge deck of the utility model.

[0033] In the figure: 1-main beam; 2-front car; 3-rear car; 4-main outrigger; 5-auxiliary outrigger; 6-front lifting crane; 7-rear lifting crane; 8-hoisting system; 9-main beam reinforcement layer; 10-front car upper crossbeam; 11-lateral automatic adjustment device; 12-rear car upper crossbeam; 13-auxiliary outrigger upper crossbeam; 14-outer mounting interface; 15-inner mounting interface. DETAILED DESCRIPTION

[0034] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0035] A transport-and-erection integrated bridge erecting machine suitable for single and double lines, comprising:

[0036] Main beam 1, which is used to support the bridge erection machine structure;

[0037] The front car 2 and the rear car 3 are respectively connected to the front and rear ends of the main beam 1 and are used for the travel of the bridge erecting machine;

[0038] A front crane 6 and a rear crane 7 are connected to the front and rear ends of the main beam 1 respectively, and are located between the front crane 2 and the rear crane 3, and are used to erect the bridge;

[0039] A main support leg 4, which is movably connected to the main beam 1 through a hanging wheel system arranged on the upper part of the main support leg 4;

[0040] Auxiliary outriggers 5, which are arranged in front of the front crane 6 and are used for temporary support of the bridge erecting machine's leg-reversing operation;

[0041] The lifting system 8 is arranged at the rear end of the main beam 1 and is used to lift and move the bridge structure.

[0042] Furthermore, the main beam 1 adopts a layered structure, and a reinforcing layer 9 is arranged on the upper part of the main beam 1, and the reinforcing layer 9 is connected to the main beam 1 by bolts. The reinforcing layer 9 is used to improve the strength of the main beam 1.

[0043] Furthermore, the upper cross beam 10 of the front vehicle 2 is provided with a wheelbase lateral automatic adjustment device 11 to adapt to the construction of bridges of different widths. The upper cross beam 12 of the rear vehicle 3 and the upper cross beam 13 of the auxiliary support leg 5 are both provided with two installation interfaces to adapt to the construction requirements of bridges of different models. The two installation interfaces are respectively an outer side installation interface 14 and an inner side installation interface 15.

[0044] Furthermore, the main support leg 4 is a triangular structure, which can move along the main beam 1 through a pulley system.

[0045] The integrated transport and erection bridge erecting machine for single and double lines in this application can be used for multiple purposes after simple modification, meeting the requirements of the erection of 500t single-line beams and 700t-900t double-line beams of high-speed railway bridges. The specific use method is as follows:

[0046] (1) When erecting a 700t-900t double-track box girder, the construction method includes the following steps:

[0047] A1. Install the upper reinforcement layer 9 on the main beam 1 to improve the strength of the main beam (such as Figure 1-Figure 4 shown).

[0048] A2, the rear car 3 is installed on the outer side of the rear car upper cross beam 12 (such as Figure 2 shown).

[0049] A3, the auxiliary leg 5 is installed on the outer side of the crossbeam 13 of the auxiliary leg (such as Figure 3 shown).

[0050] A4. The front vehicle 2 pushes the trolley to the outside along the upper crossbeam through the automatic lateral wheelbase adjustment device 11.

[0051] (like Figure 4 , Figure 5 shown).

[0052] Its various components are adapted to the requirements for erecting double-track box girders, and its construction steps are the same as those of the original mobile bridge-building machine.

[0053] (2) When erecting a 500t single-line box girder, the construction method includes the following steps:

[0054] B1. Remove the upper reinforcement layer 9 of the main beam 1 to reduce the weight of the main beam (such as Figure 6-Figure 8 shown).

[0055] B2, the rear car 3 is installed on the inner side of the rear car upper cross beam 12 (such as Figure 6 shown).

[0056] B3, the auxiliary leg 5 is installed on the inner side of the auxiliary leg upper beam 13 (such as Figure 7 shown).

[0057] B4, the front vehicle 2 uses the wheelbase lateral automatic adjustment device 11 to pull the trolley along the upper crossbeam to the inner side (such as Figure 8 shown).

[0058] Make its various components adapt to the requirements of single-line box girder erection, and its construction steps are the same as those of double-line mobile bridge-building machines.

[0059] like Figures 9 and 10 As shown, when erecting a single-line box girder, when the whole machine passes the hole for the second time with heavy load under the joint drive of the main leg fixed torque motor and the rear vehicle, the main leg 4 needs to pass through the front vehicle 2. At this time, the front vehicle 2 pushes the trolley to the outside along the upper beam through the wheelbase lateral automatic adjustment device 11 in the air to ensure that the main leg 4 passes smoothly. After the box girder is in place, the machine stops traveling and drops the beam into place.

[0060] like Fig.11 As shown, after the box beam is in place, the whole machine moves backward, and when the front vehicle 2 returns to the bridge deck, the trolley is pulled to the inside along the upper beam through the wheelbase automatic transverse adjustment device 11. The main legs 4 are retracted, and the whole machine returns to the beam yard. The beam of this hole is erected and ready for the next cycle operation.

[0061] Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various choices and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention is limited by the claims and their equivalents.

Claims

1. A bridge erection machine that can transport and erect single and double lines, characterized in that: include: A main beam (1) for supporting the bridge erecting machine structure; A front car (2) and a rear car (3), which are respectively connected to the front and rear ends of the main beam (1) and are used for the travel of the bridge erecting machine; A front crane (6) and a rear crane (7), which are respectively connected to the front and rear ends of the main beam (1), and are located between the front vehicle (2) and the rear vehicle (3); A main support leg (4), wherein the main support leg (4) is movably connected to the main beam (1) via a pulley system provided on an upper portion of the main support leg (4); Auxiliary supporting legs (5), which are arranged in front of the front crane (6) and are used for temporary support of the leg-reversing operation of the bridge erecting machine; A lifting system (8) is arranged at the rear end of the main beam (1) and is used to lift and move the bridge structure.

2. The integrated transport and erection bridge erecting machine suitable for single and double lines according to claim 1 is characterized in that: The main beam (1) adopts a layered structure, a reinforcement layer (9) is arranged on the upper part of the main beam (1), and the reinforcement layer (9) is connected to the main beam (1) by bolts.

3. The integrated transport and erection bridge erecting machine suitable for single and double lines according to claim 1 is characterized in that: An automatic wheelbase lateral adjustment device (11) is provided on the upper crossbeam (10) of the front vehicle (2) to adapt to the erection of bridges of different widths.

4. The integrated transport and erection bridge erecting machine suitable for single and double lines according to claim 1 is characterized in that: Two types of installation interfaces are provided on the rear vehicle upper cross beam (12) of the rear vehicle (3) and the auxiliary support leg upper cross beam (13) of the auxiliary support leg (5) to meet the requirements of erecting bridges of different models.

5. The integrated transport and erection bridge erecting machine suitable for single and double lines according to claim 4 is characterized in that: The two types of mounting interfaces are respectively an outer mounting interface (14) and an inner mounting interface (15).

6. The integrated transport and erection bridge erecting machine suitable for single and double lines according to claim 1 is characterized in that: The main supporting leg (4) is a triangular structure, and the main supporting leg (4) can move along the main beam (1) through the hanging wheel system.

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