Automatic walking mechanism of suspension grouting bridge fabrication machine

Abstract

The utility model discloses an automatic walking mechanism of a suspension grouting bridge fabrication machine, which belongs to the technical field of bridge construction and comprises two groups of walking units arranged below a main beam. The walking unit comprises a rear change gear set, a rear supporting wheel set, a front supporting change gear integrated structure and a hydraulic motor transmission mechanism which are sequentially and fixedly arranged on the walking beam from back to front. The upper end of the hydraulic motor transmission mechanism is meshed with the lower end face of the main beam through a gear and a rack for driving the walking beam and the main beam to move; the upper end of the rear supporting wheel set abuts against the main beam bottom plate and is used for supporting the main beam to walk. The upper end of the rear hanging wheel set is hung on the main beam bottom plate and used for hanging the walking beam on the main beam to walk; the front supporting change gear integrated structure comprises a front supporting wheel and a front change gear; the front supporting wheels are used for supporting the main beam to walk together with the rear supporting wheel sets; the front change gear is used for hanging the walking beam on the main beam to walk together with the rear change gear set. The utility model has the advantages that the automatic walking of equipment is realized, the operation is simple, the automation and safety are improved, the construction efficiency is improved, and the construction cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bridge construction technical field, more specifically relates to a kind of automatic walking mechanism of suspension pouring bridge machine. BACKGROUND

[0002] Bridge machine is a kind of mechanical equipment specially used for building bridge. It has hoisting, construction, moving and other functions, and can carry out bridge construction under various complex terrain conditions, improve construction efficiency and ensure construction safety. Suspension pouring bridge machine can be used for cast-in-place operation of continuous beam to realize aerial bridge building, and is mainly composed of moving support, formwork, electric control hydraulic pressure, safety protection, informatization and intelligent control systems, and can be applied to continuous beam construction of different spans and different sections. The existing suspension pouring bridge machine walking mechanism is re-paved with new running beam at the top of the poured beam body, and then the main beam is guided to the new running beam for the main beam to walk, and the old running beam is removed. The new running beam has problems such as inaccurate butt joint position, non-collinear with the original running beam, and the construction process is relatively complicated, and additional equipment consumption is increased. Therefore, how to provide a kind of automatic walking mechanism of suspension pouring bridge machine is a problem to be solved by the skilled in the art. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the utility model provides a kind of automatic walking mechanism of suspension pouring bridge machine, mainly to solve the problems of existing suspension pouring bridge machine walking inconvenience, instability and different step with running beam.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] An automatic walking mechanism of suspension pouring bridge machine, comprising two groups of walking units arranged below the main beam; the walking unit comprises a rear wheel group, a rear support wheel group, a front support and hanging wheel integrated structure and a hydraulic motor transmission mechanism arranged in sequence from rear to front on the running beam; the lower end of the hydraulic motor transmission mechanism is fixedly connected with the running beam, and the upper end is drivingly connected with the lower end surface of the main beam through gear and rack meshing, for driving the running beam and the main beam to move; the lower end of the rear support wheel group is fixedly connected with the running beam, and the upper end abuts against the main beam bottom plate, for supporting the main beam to walk; the lower end of the rear hanging wheel group is fixedly connected with the running beam, and the upper end is hung on the main beam bottom plate, for hanging the running beam on the main beam to walk; the front support and hanging wheel integrated structure comprises a front support wheel and a front hanging wheel; the front support wheel is used to support the main beam to walk together with the rear support wheel group; the front hanging wheel is used to hang the running beam on the main beam to walk together with the rear hanging wheel group.

[0006] Further, the walking beam is further provided with a walking beam rear anchor seat and a walking beam front anchor seat; the walking beam rear anchor seat and the walking beam front anchor seat are bolted to the bridge main body through anchor bolts to avoid movement of the walking beam when the main beam moves.

[0007] Further, the walking beam is further provided with a front support seat arranged in front of the front support wheel integrated structure; the front support seat is provided with a cushion block above during bridge construction to support the main beam; the front support seat is further provided with an avoidance groove at the center position to avoid the rack.

[0008] Further, the two sides of the lower end surface of the main beam bottom plate are provided with two support wheel tracks; the upper ends of the rear support wheel group and the front support wheel are abutted on the support wheel tracks.

[0009] Further, the rear support wheel group comprises a rear support wheel wheel box and two groups of rear support wheels; the lower end of the rear support wheel wheel box is bolted to the walking beam; the two groups of rear support wheels are respectively arranged in the rear support wheel wheel box and abutted on the two support wheel tracks at the upper ends.

[0010] Further, the rear hanging wheel group comprises a rear hanging wheel wheel box and two groups of rear hanging wheels; the two groups of rear hanging wheels are respectively arranged on the extension of the main beam bottom plate; the lower end of the rear hanging wheel wheel box is fixedly connected to the walking beam and rotationally connected to the two groups of rear hanging wheels.

[0011] Further, the front support wheel integrated structure comprises a wheel box base, two groups of front support wheels and two groups of telescopic mechanisms; the lower end surface of the wheel box base is fixedly connected to the walking beam; the upper ends of the two groups of front support wheels are respectively abutted on the two support wheel tracks and rotationally connected to the wheel box base at the middle portions; the two groups of telescopic mechanisms are respectively fixedly arranged at the two ends of the wheel box base and clamped on the two sides of the main beam.

[0012] Further, the telescopic mechanism comprises two front hanging wheels, a rotating shaft, an adjusting bolt, an adjusting base, an adjusting cavity and a spring; the lower end of the adjusting cavity is fixedly connected to the wheel box base; the middle portion of the adjusting cavity is provided with a base plate; the lower end of the adjusting base is arranged above the base plate; the upper end of the spring is abutted on the lower wall of the adjusting base and the lower end is abutted on the base plate; the adjusting bolt penetrates through the upper and lower walls of the base plate, the spring and the adjusting base and is fixed above the upper wall of the adjusting base through a nut after adjustment.

[0013] Further, the hydraulic motor transmission mechanism comprises a hydraulic motor fixing seat, a hydraulic motor and a gear; the hydraulic motor is fixedly arranged above the walking beam through the hydraulic motor fixing seat; the output shaft of the hydraulic motor is coaxially fixedly connected to the gear; the rack is fixedly arranged at the center position of the main beam bottom plate; the gear is in meshing transmission with the rack.

[0014] The utility model discloses the beneficial effect lies in:

[0015] The utility model mainly aims at highway, railway bridge construction, sets up a kind of automatic walking mechanism of bridge construction machine of suspension, by the movement of main girder and the movement of walking beam are combined together, realize that bridge construction machine of suspension is synchronous walking with track by oneself;Adopt hydraulic motor to be able to realize stepless speed regulation in very wide range, and speed regulation process is stable, there is no impact, safe in use;Realize equipment autonomous walking, easy operation, promote automation and security, improve construction efficiency, reduce construction cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the following will be briefly introduced to the drawings needed to be used in embodiment or prior art description, obviously, the drawings in the following description only the embodiment of the utility model, for those skilled in the art, under the premise of not paying creative labor, can also obtain other drawings according to the provided drawings.

[0017] Figure 1 It is the whole structure schematic diagram of the utility model.

[0018] Figure 2 It is Figure 1 A-A section view in the middle.

[0019] Figure 3 It is Figure 1 B-B section view in the middle.

[0020] Figure 4 It is Figure 1 C-C section view in the middle.

[0021] Figure 5 It is Figure 1 D-D section view in the middle.

[0022] Figure 6 It is Figure 1 E-E section view in the middle.

[0023] Figure 7 It is the side view of telescopic mechanism in the utility model.

[0024] Figure 8 It is the front view of telescopic mechanism in the utility model.

[0025] In the drawing, wherein:

[0026] 1 - main beam; 2 - rear anchoring beam 1; 3 - rear leg; 4 - rear anchoring beam 2; 5 - rear bogie; 6 - rear support wheel set; 7 - walking beam rear anchoring seat; 8 - hydraulic motor transmission mechanism; 9 - front support bogie integrated mechanism; 10 - front support seat; 11 - walking beam front anchoring seat; 12 - front leg; 13 - support wheel track; 14 - rack; 15 - gear; 16 - hydraulic motor; 17 - walking beam; 18 - rotating shaft; 19 - adjusting bolt; 20 - adjusting base; 21 - adjusting cavity; 22 - spring; 23 - base plate. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0028] The existing movable formwork bridge machine is composed of a mobile support, a bridge pouring formwork, an electric control hydraulic system, a safety protection system, an informatization system and an intelligent control system, and can be suitable for continuous beam construction of different spans and different sections. The mobile support serves as the main bearing structure of the entire movable formwork bridge machine, supports other systems to walk along the walking beam arranged above the built bridge main body, and is provided with a main beam on the left and right upper ends. The walking mechanism is arranged below the mobile support and is used to drive the mobile support to move along the bridge length direction through the dynamic wheel support device.

[0029] Please refer to the accompanying drawings Figures 1-8 The utility model provides a kind of movable formwork bridge machine automatic walking mechanism, including two groups of walking unit being respectively arranged below main beam 1.

[0030] The utility model relates to a main beam 1 of bridge pouring machine of hanging is box type structure, and the bottom plate both sides of main beam 1 extend outward and form the extension, and the lower portion of main beam 1 is provided with front support leg 12, rear support leg 3 and walking unit, the inside of front support leg 12 and rear support leg 3 is provided with hydraulic jack, is used for jacking main beam 1, front support leg 12 is moved to the front end of travel through the T-shaped track of hanging wheel on the main beam 1 and is hinged with main beam 1, and after moving in place, it is fixedly connected through the bolt, and the lower portion is suspended when bridge pouring construction, and the hydraulic jack of lower portion is supported on the bridge main body after the good maintenance of bridge pouring, is used for supporting main beam 1 for walking beam 17 to move, rear support leg 3 is arranged at the rear end of main beam 1, and the connecting seat is arranged between rear support leg 3 and main beam 1, and is fixed on the lower end surface of main beam 1 through flange bolt, rear anchoring beam one 2 and rear anchoring beam two 4 for anchoring with beam surface are further equipped at the rear end of main beam 1, and are fixed on the bridge main body through anchor bolt, and the rear end of main beam 1 is fixed when the main pouring construction of bridge, and the front end pouring construction is stressed to make main beam 1 overturn.

[0031] Main beam 1 is two-point support, and when walking beam 17 moves when main beam 1 is stationary, is supported by front support leg 12 and rear support leg 3, and the hydraulic jack is supported on the bridge main body and jacks up main beam 1, and main beam 1 is limited on the bridge main body, when main beam 1 moves, the hydraulic jack is recycled, and main beam 1 falls on walking unit, and main beam 1 is driven and moves back and forth along walking beam 17.

[0032] The walking unit in the utility model includes rear hanging wheel group 5, rear support wheel group 6, front support hanging wheel integrated structure 9 and hydraulic motor transmission mechanism 8 arranged in sequence from rear to front on walking beam 17, rear support wheel group 6 and front support hanging wheel integrated structure 9 are bolted to the rear end and the front end of walking beam 17, hydraulic motor transmission mechanism 8 is arranged behind front support hanging wheel integrated structure 9, and the lower end is fixedly connected with walking beam 17, and the upper end is movably connected with the lower end surface of main beam 1.

[0033] After the hydraulic jack of front support leg 12 and rear support leg 3 is recycled, the gravity of main beam 1 is applied to rear support wheel group 6 and front support hanging wheel integrated structure 9, so that the wheel rolls along the lower end surface of main beam 1, and main beam 1 is moved forward under the driving force of hydraulic motor transmission mechanism 8, when moving to the specified position, the hydraulic jack is lowered, so that main beam 1 is fixed on the bridge main body, the gravity of main beam 1 is re-applied to front support leg 12 and rear support leg 3, the bolt fastening of walking beam 17 is loosened, and walking beam 17 moves forward to the next working position under the driving force of hydraulic motor transmission mechanism 8 due to the action of rear hanging wheel group 5 and front support hanging wheel integrated structure 9.

[0034] The walking beam 17 is also provided with a walking beam rear anchoring seat 7 and a walking beam front anchoring seat 11; when the main beam 1 moves along the walking beam 17, the walking beam rear anchoring seat 7 and the walking beam front anchoring seat 11 anchor the walking beam 17 to the bridge main body through anchor bolts, so as to avoid movement of the walking beam 17.

[0035] The walking beam 17 is also provided with a front support seat 10, which is arranged in front of the front support wheel-integrated structure 9 and has a certain distance from the main beam 1 at the upper end face in the walking working condition. During bridge construction, the front support seat 10 is provided with a pad above, which is used to support the main beam 1 and avoid damage to the lower mechanism caused by stress of the main beam 1 during construction. The front support seat 10 is also provided with an avoiding groove at the center position, which is used to avoid movement of the rack 14.

[0036] The bottom plate of the main beam 1 is provided with two support wheel tracks 13 at the two sides of the lower end face. The rear support wheel group 6 is located at the rear end of the walking beam 17 and includes a rear support wheel wheel box and two groups of rear support wheels. The lower end of the rear support wheel wheel box is bolted to the walking beam 17. The two groups of rear support wheels are respectively arranged to rotate in the rear support wheel wheel box and abut on the two support wheel tracks 13 at the upper end, so as to walk along the support wheel tracks 13.

[0037] The rear wheel group 5 is arranged behind the rear support wheel group 6 and includes a rear wheel wheel box and two groups of rear wheels. The two groups of rear wheels are respectively arranged on the extension of the bottom plate of the main beam 1. The lower end of the rear wheel wheel box is fixedly connected to the walking beam 17 and rotatably connected to the two groups of rear wheels, so that the rear wheel group 5 is suspended on the bottom plate of the main beam 1 when the walking beam 17 moves.

[0038] The front support wheel integrated structure 9 is arranged at the front end of the walking beam 17, and comprises a wheel box base, two groups of front support wheels and two groups of telescopic mechanisms; the lower end surface of the wheel box base is fixedly connected with the walking beam 17; the upper ends of the two groups of front support wheels are respectively abutted on two support wheel tracks 13, and the middle parts are respectively rotationally connected with the wheel box base; the two groups of telescopic mechanisms are respectively fixedly arranged at the two ends of the wheel box base and clamped on the two sides of the main beam 1; the telescopic mechanism comprises two front hanging wheels, a rotating shaft 18, an adjusting bolt 19, an adjusting base 20, an adjusting cavity 21 and a spring 22; the lower end of the adjusting cavity 21 is fixedly connected with the wheel box base; the middle part of the adjusting cavity 21 is provided with a base plate 23; the lower end of the adjusting base 20 is arranged above the base plate 23; the upper end of the spring 22 is abutted on the lower wall of the adjusting base 20, and the lower end is abutted on the base plate 23; the adjusting bolt 19 penetrates through the upper and lower walls of the base plate 23, the spring 22 and the adjusting base 20, and is fixed above the upper wall of the adjusting base 20 through a nut after adjustment; the two front hanging wheels are rotationally arranged on the adjusting base 20 through the rotating shaft 18; the adjusting base 20 can be moved up and down in the adjusting cavity 21 by adjusting the adjusting bolt 19.

[0039] The hydraulic motor transmission mechanism 8 comprises a hydraulic motor fixing base, a hydraulic motor 16 and a gear 15; the hydraulic motor 16 is fixedly arranged above the walking beam 17 through the hydraulic motor fixing base; the output shaft of the hydraulic motor 16 is coaxially fixedly connected with the gear 15; the main beam 1 is fixedly provided with a rack 14 at the center position of the bottom plate; the gear 15 is in meshing transmission with the rack 14. When the main beam 1 moves, the power of the hydraulic motor 16 serves as the main power for the movement of the main beam 1, and drives the gear 15 to drive the main beam 1 to move forward through the meshing rack 14. When the walking beam 7 moves, the power of the hydraulic motor 16 serves as the main power for the movement of the walking beam 7, and drives the gear 15 to drive the walking beam 7 to move forward with itself through the meshing rack 14.

[0040] The working principle of the utility model is as follows: under the bridge pouring construction condition, the rear end of the main beam 1 is anchored on the bridge main body through the rear anchoring beam one 2 and the rear anchoring beam two 4, at this time, the hydraulic jack of the rear support leg 3 is supported on the bridge main body, the middle part of the main beam 1 is supported by the front support seat and the cushion block, and the front end of the main beam 1 is in a suspended state at the front support leg 12; after the bridge pouring maintenance, the hydraulic jack of the front support leg 12 is lowered and supported on the bridge main body, and the walking condition is entered.

[0041] The anchor of the walking beam 17 is cancelled, the hydraulic jack lifts the main beam 1, and the moving space of the walking beam 17 is reserved under the main beam 1; the cushion block above the front support seat 10 is taken out, the front hanging wheel in the front support hanging wheel integrated structure 9 is hung on the extension of the bottom plate of the main beam 1 with the main beam 1; the adjusting screw bolt 19 in the front support hanging wheel integrated structure 9 is operated, the adjusting base 20 moves in the adjusting cavity 20 (equivalent to the adjusting base 20 descending relative to the adjusting cavity 20), thereby driving the adjusting cavity 20, the wheel box base and the front end of the walking beam 17 to rise, so that the gap between the gear 15 and the rack 14 caused by the gravity is eliminated, and the gear 15 and the rack 14 are engaged; the power of the hydraulic motor 16 drives the walking beam 17 to move forward to the designated position, the hydraulic jack is recovered to make the walking beam 17 fall down, and the walking beam 17 is bolted on the bridge main body through the walking beam rear anchor seat 7 and the walking beam front anchor seat 11. After the hydraulic jack is recovered, the gravity of the main beam 1 is applied to the rear support wheel group 6 and the front support hanging wheel integrated structure 9, the rear support wheel 6 abuts against the support wheel track 13; the adjusting screw bolt 19 in the front support hanging wheel integrated structure 9 is operated, the adjusting base 20 moves in the adjusting cavity 20 (equivalent to the adjusting base 20 rising relative to the adjusting cavity 20), thereby driving the adjusting cavity 20 and the wheel box base to descend, and the front support wheel moves upward to abut against the support track 13, at this time, the gear 15 and the rack 14 are also in the engaged state, the power of the hydraulic motor 16 drives the main beam 1 to move forward to the next pouring position; after the main beam 1 is positioned, the hydraulic jack of the rear support leg 3 is lowered, the rear anchor beam one 2 and the rear anchor beam two 4 are anchored on the bridge main body, and the cushion block is arranged on the front support seat 10 to support the main beam 1, so that the pouring operation at this position can be carried out.

[0042] The embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts between the embodiments can be referred to each other.

[0043] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic walking mechanism for a suspended bridge construction machine, characterized in that, It includes two sets of traveling units respectively set below the main beam (1); the traveling unit includes a rear hanging wheel set (5), a rear support wheel set (6), a front support hanging wheel integrated structure (9), and a hydraulic motor transmission mechanism (8) arranged sequentially from back to front on the traveling beam (17); the lower end of the hydraulic motor transmission mechanism (8) is fixedly connected to the traveling beam (17), and the upper end is connected to the lower end face of the main beam (1) through gear (15) and rack (14) for driving the traveling beam (17) and the main beam (1) to move; the lower end of the rear support wheel set (6) is connected to the lower end face of the traveling beam (17) through gear (15) and rack (14) for driving the traveling beam (17) and the main beam (1) to move; the lower end of the rear support wheel set (6) is connected to the lower end face of the traveling beam (17) 17) Fixed connection, the upper end abuts against the bottom plate of the main beam (1) to support the main beam (1) to move; the lower end of the rear hanging wheel group (5) is fixedly connected to the walking beam (17), and the upper end is suspended on the bottom plate of the main beam (1) to hang the walking beam (17) on the main beam (1) to move; the front support hanging wheel integrated structure (9) includes a front support wheel and a front hanging wheel; the front support wheel is used together with the rear support wheel group (6) to support the main beam (1) to move; the front hanging wheel is used together with the rear hanging wheel group (5) to hang the walking beam (17) on the main beam (1) to move.

2. The automatic walking mechanism of the cantilever bridge construction machine according to claim 1, characterized in that, The walking beam (17) is also provided with a rear anchorage (7) and a front anchorage (11); the rear anchorage (7) and the front anchorage (11) are used to fasten the walking beam (17) to the main body of the bridge by anchor bolts, so as to prevent the walking beam (17) from moving when the main beam (1) moves.

3. The automatic walking mechanism of the cantilever bridge construction machine according to claim 1, characterized in that, The walking beam (17) is also fixed with a front support seat (10), which is located in front of the front support hanging wheel integrated structure (9); during bridge construction, a pad is set above the front support seat (10) to support the main beam (1); the center of the front support seat (10) is also provided with an avoidance groove to avoid the rack (14).

4. The automatic walking mechanism of the cantilever bridge construction machine according to claim 1, characterized in that, Two support wheel tracks (13) are provided on both sides of the lower end face of the bottom plate of the main beam (1), and the upper end of the rear support wheel group (6) and the upper end of the front support wheel both abut against the support wheel tracks (13).

5. The automatic walking mechanism of the cantilever bridge construction machine according to claim 4, characterized in that, The rear support wheel assembly (6) includes a rear support wheel box and two sets of rear support wheels; the lower end of the rear support wheel box is bolted to the traveling beam (17); the two sets of rear support wheels are respectively rotatably arranged inside the rear support wheel box, and their upper ends respectively abut against the two support wheel tracks (13).

6. The automatic walking mechanism of the cantilever bridge construction machine according to claim 4, characterized in that, The rear wheel assembly (5) includes a rear wheel box and two sets of rear wheels; the two sets of rear wheels are respectively set on the outer extension of the bottom plate of the main beam (1); the lower end of the rear wheel box is fixedly connected to the traveling beam (17) and rotatably connected to the two sets of rear wheels.

7. The automatic walking mechanism of the cantilever bridge construction machine according to claim 4, characterized in that, The integrated front support wheel structure (9) includes a wheel box base, two sets of front support wheels and two sets of telescopic mechanisms; the lower end face of the wheel box base is fixedly connected to the traveling beam (17); the upper ends of the two sets of front support wheels respectively abut against the two support wheel tracks (13), and the middle part is rotatably connected to the wheel box base; the two sets of telescopic mechanisms are respectively fixed at both ends of the wheel box base and sandwiched on both sides of the main beam (1).

8. The automatic walking mechanism of the cantilever bridge construction machine according to claim 7, characterized in that, The telescopic mechanism includes two front wheels, a rotating shaft (18), an adjusting bolt (19), an adjusting base (20), an adjusting cavity (21), and a spring (22); the lower end of the adjusting cavity (21) is fixedly connected to the wheel box base; a base plate (23) is provided in the middle of the adjusting cavity (21); the lower end of the adjusting base (20) is located above the base plate (23); the upper end of the spring (22) abuts against the lower wall of the adjusting base (20), and the lower end abuts against the base plate (23); the adjusting bolt (19) passes through the base plate (23), the spring (22), and the upper and lower walls of the adjusting base (20), and is fixed above the upper wall of the adjusting base (20) by a nut after adjustment.

9. The automatic walking mechanism of a cantilever bridge construction machine according to claim 1, characterized in that, The hydraulic motor transmission mechanism (8) includes a hydraulic motor mounting base, a hydraulic motor (16), and a gear (15); The hydraulic motor (16) is fixed above the traveling beam (17) by the hydraulic motor mounting base; The output shaft of the hydraulic motor (16) is coaxially and fixedly connected to the gear (15); a rack (14) is fixedly provided at the center of the bottom plate of the main beam (1); the gear (15) meshes with the rack (14) for transmission.

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