D-shaped auxiliary beam longitudinal movement sliding trolley

Abstract

The utility model relates to the technical field of railway construction auxiliary equipment, and mainly discloses a D-shaped auxiliary beam longitudinal movement sliding trolley, two trolley bodies are erected on a railway track side by side, each trolley body comprises a trolley frame and walking wheels arranged at the bottom of the trolley frame, two cross beams are arranged on the trolley frame in the length direction of the trolley frame at intervals, and the cross beams are detachably connected with the trolley frame. The two pairs of vehicle bodies respectively bear the two groups of cross beams at the front part and the rear part so as to lift the D-shaped auxiliary beam to move longitudinally, the motor controls the vehicle bodies to move so as to control the longitudinal moving speed, the beam moving process is stable and smooth, the working efficiency is improved, the labor intensity of workers is reduced, and the labor intensity of the workers is reduced. The sliding trolley is easy and flexible to operate, controllable in construction time, few in construction restriction factors, high in construction operation safety coefficient and low in construction cost.

Description

Technical Field

[0001] The utility model relates to the technical field of railway construction auxiliary equipment, in particular to a longitudinal shifting and sliding trolley for D-shaped temporary bridge girder. Background Technique

[0002] The structure of the D-shaped temporary bridge girder mainly consists of two longitudinal girders and several cross girders. Specific models such as D16 type and D24 type are provided with different numbers of cross girders. The D16 type is provided with 25 cross girders, while the D24 type is provided with 37 cross girders. In addition, the accessories of the D-shaped temporary bridge girder include brackets, gusset plates, diagonal bars, ballast retaining plates, positioning angle irons and special rail fasteners, and all components are connected by refined bolts.

[0003] When an overpass needs to be built under a railway or other buildings need to be added (reconstructed) on the existing line, in order not to affect the normal operation of the railway, and when it is not feasible or uneconomical to bypass the line, the D-shaped temporary bridge girder is often used to reinforce the line by overhead, and then open-cut or jacking construction is carried out to complete the bridge construction. The technological principle of the D-shaped temporary bridge girder is to build temporary supports for the D-shaped temporary bridge girder on both sides of the existing line at the bridge position. After the temporary supports reach the designed strength, the D-shaped temporary bridge girder is installed. Trains pass through the existing line reinforced with the D-shaped temporary bridge girder at a speed limited to 45 Km / h, and then the bridge and culvert operation construction is carried out offline. After the bridge and culvert operation construction is completed, the temporary bridge girder is removed, the line is restored, and the train resumes normal speed operation.

[0004] During the construction, the D-shaped temporary bridge girder needs to be erected and longitudinally shifted many times. During the construction, due to the short time of key point blocking, the occupation time of the longitudinal shifting construction of the temporary bridge girder is greatly limited. In the traditional construction plan, a crane is often used to hoist the D-shaped temporary bridge girder to the preset positions on both sides of the railway. However, due to complex terrain and other reasons, the construction conditions are limited, and during the construction process, it is easy to be too close to the railway overhead contact network, posing a safety hazard. Moreover, the construction time is long, and the construction time window needs to be applied for many times, resulting in low efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to solve the technical problems existing in the prior art, and provides a longitudinal shifting and sliding trolley for D-shaped temporary bridge girder, which has a simple structure, is easy to operate, can more conveniently realize the longitudinal shifting of the temporary bridge girder, and improves the construction efficiency of the longitudinal shifting of the temporary bridge girder.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A D-shaped movable beam longitudinal translation trolley, comprising two car bodies, the two car bodies are arranged side by side on the railway track and move along the length direction of the railway track. A single car body includes a frame and traveling wheels provided at the bottom of the frame. Two cross beams are arranged at intervals along the length direction of the frame on the frame, and the cross beams are detachably connected to the frame. End frames are provided at the ends of a single cross beam, fixing plates are provided on the end frames, and first support brackets are provided on the fixing plates. The cross beams at the two ends in the length direction of the D-shaped movable beams on both sides of the railway track are respectively connected to the two first support brackets of the front and rear two car bodies.

[0007] A further solution of the utility model lies in that the frame includes two end beams, and one traveling wheel is provided at each of the two ends of the bottom of the two end beams along the length direction. The motor is connected to any one of the traveling wheels through a reducer.

[0008] The two car bodies and the D-shaped movable beams on both sides together form a translation trolley. The car body with a motor is connected to the other car body through the D-shaped movable beam. When the two car bodies lift and hoist the D-shaped movable beam and run along the railway track direction, one car body is the driving transport trolley running along the railway, and the other car body is in a driven (powerless state). The driving transport trolley is responsible for pulling the driven transport trolley through the D-shaped movable beam to ensure that the two translation trolleys can operate coordinately and maintain a certain speed.

[0009] A further solution of the utility model lies in that the cross beam is a square frame with a hollow interior.

[0010] A further solution of the utility model lies in that the end frame is a square frame with a hollow interior.

[0011] A further solution of the utility model lies in that it further includes a jacking hydraulic cylinder and sleepers. The jacking hydraulic cylinder is placed below the cross beam. After the cross beam and the D-shaped movable beam are jacked up to a certain height by the jacking hydraulic cylinder, the sleepers are inserted into the gap between the cross beam and the frame to ensure that the D-shaped movable beam is suspended above the steel sleepers of the railway track, facilitating the longitudinal translation construction of the translation trolley for the D-shaped movable beam.

[0012] A further solution of the utility model lies in that a second support bracket is further provided on the fixing plate, which is suitable for the longitudinal translation construction of the D-shaped movable beam of D24 model.

[0013] A further solution of the utility model lies in that the first support bracket and the second support bracket are fixed on the fixing plate by bolts.

[0014] A further solution of the utility model lies in that the first support bracket and the second support bracket include two clamping plates, and the cross beam of the D-shaped movable beam is placed between the two clamping plates and fixed by bolts passing through the clamping plates and the cross beam in sequence.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] In the present utility model, two pairs of car bodies respectively carry two groups of cross beams at the front and rear to lift and longitudinally move the D-shaped temporary beam. The movement of the car body is controlled by a motor to control the longitudinal movement speed and direction. The beam moving process is stable and smooth. This sliding trolley is simple and flexible to operate, the construction time is controllable, and there are few construction constraints. At the same time, the construction operation has a high safety factor and low construction cost. In addition, compared with similar construction devices, it can fully meet the construction requirements of the operating line. It can not only reduce the input of manpower and material resources, reduce the impact on the equipment of the operating line, meet the requirements of the operating line for train operation safety, but also greatly reduce the problems of high construction safety risks, difficult construction key points, and tight construction time within the blocked points, and greatly reduce the economic input of the project. Description of the Drawings

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 It is a schematic diagram of the overall structure of the sliding trolley of the present utility model in the use state;

[0019] Figure 2 It is a reference diagram of the sliding trolley of the present utility model in the use state;

[0020] Figure 3 It is a top view of the sliding trolley of the present utility model in the use state;

[0021] Figure 4 It is a side view of the sliding trolley of the present utility model in the use state.

[0022] In the figure, 1. car body, 2. cross beam, 3. vertical frame, 4. fixed plate, 5. walking wheel, 6. railway track, 7. D-shaped temporary beam, 8. first support bracket, 9. second support bracket, 10. sleeper, 11. jacking hydraulic cylinder. Detailed Embodiments

[0023] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0024] As shown in Figure 1 , Figure 4 the figure, a D-shaped movable beam longitudinal shifting trolley includes two car bodies 1. The two car bodies 1 are arranged side by side on the railway track 6 and travel along the length direction of the railway track 6. Each single car body 1 includes a frame and traveling wheels 5 arranged at the bottom of the frame.

[0025] The frame includes two end beams. At both ends of the bottom of the two end beams along the length direction, a traveling wheel 5 is arranged respectively. The motor is connected to any one of the traveling wheels 5 through a speed reducer.

[0026] As shown in Figure 1 the figure, two cross beams 2 are arranged at intervals along the length direction of the frame. The cross beams 2 are detachably connected to the frame. At both ends of each single cross beam 2, vertical frames 3 are arranged. On the vertical frames 3, fixing plates 4 are arranged. On the fixing plates 4, first supporting brackets 8 are arranged. The cross beams 2 at both ends of the D-shaped movable beam 7 on both sides of the railway track 6 are respectively connected to the two first supporting brackets 8 of the front and rear two car bodies 1.

[0027] The two car bodies 1 and the D-shaped movable beams 7 on both sides together form a shifting trolley. The car body 1 with a motor is connected to the other car body 1 through the D-shaped movable beam 7. When the two car bodies 1 lift and hoist the D-shaped movable beam 7 and run along the railway track 6 direction, one car body 1 is a driving and transporting trolley running along the railway, and the other car body 1 is in a driven (powerless state). The driving and transporting trolley is responsible for pulling the driven transporting trolley through the D-shaped movable beam 7 to ensure that the two shifting trolleys can operate coordinately and maintain a certain speed.

[0028] A further solution of the present utility model is that the cross beam 2 is a square frame with a hollow interior. The vertical frame 3 is a square frame with a hollow interior.

[0029] A further solution of the present utility model is that a second supporting bracket 9 is further arranged on the fixing plate 4, which is suitable for the longitudinal shifting construction of the D-shaped movable beam 7 of D24 model.

[0030] The first supporting bracket 8 is located at the bottom of the fixing plate 4, and the second supporting bracket 9 is located in the middle of the fixing plate 4. Such a design is determined according to the installation height of the D-shaped movable beam 7, so that the D-shaped movable beam 7 after longitudinal shifting is exactly at the installation height, and there is no need to adjust it through a lifting tool.

[0031] A further solution of the present utility model is that the first supporting bracket 8 and the second supporting bracket 9 are fixed on the fixing plate 4 through bolts. The first supporting bracket 8 and the second supporting bracket 9 include two clamping plates. The cross beam 2 of the D-shaped movable beam 7 is placed between the two clamping plates and fixed after the bolts pass through the clamping plates and the cross beam 2 in sequence.

[0032] The technical solution of the utility model is applicable to the longitudinal transportation of the D-shaped girder 7 along the length direction of the railway track 6 at a construction site with limited space, and is also applicable to the continuous jacking construction of the installed D-shaped girder 7 with the multi-hole box culvert under the overpass.

[0033] Embodiment 1

[0034] This embodiment is used for the transportation at a construction site with limited space.

[0035] (1) Place the D-shaped girder 7 on the open spaces on both sides of the railway track 6 by a crane. As Figure 4 shown, erect this sliding trolley along the length direction of the railway track 6. The two car bodies 1 are arranged at intervals front and back, and the distance between the head and the tail of the two car bodies 1 is less than the length of the D-shaped girder 7;

[0036] (2) As Figure 3 shown, manually install the D-shaped girders 7 on both sides on the fixing plates 4 of the two car bodies 1 with the help of lifting tools. The cross beam 2 of the D-shaped girder 7 is fixed on the first support bracket 8 (applicable to D16) or the second support bracket 9 (applicable to D24). The D-shaped girders 7 on both sides should be installed simultaneously. Lift the D-shaped girders 7 of the same model on both sides to ensure the balance of the forces on both sides of the sliding trolley and avoid overturning;

[0037] (3) As Figure 1 shown, after the installation is completed, start the motor, and the D-shaped girder 7 can be longitudinally moved along the length direction of the railway track 6. The traveling speed of the car body 1 is not greater than 5 m / min. When the two car bodies 1 lift and move the D-shaped girder 7 along the direction of the railway track 6, one car body 1 provides the driving force for traveling, and the other moving trolley is in a driven (powerless state) state after releasing the brake. The driving car body 1 is responsible for pulling and guiding the driven car body 1 to ensure that the two car bodies 1 can travel synchronously, ensuring the construction efficiency and safety.

[0038] Embodiment 2

[0039] Based on Embodiment 1, the further solution of this embodiment is that it further includes a jacking hydraulic cylinder 11 and a sleeper 10. The jacking hydraulic cylinder 11 is placed under the cross beam 2. After the jacking hydraulic cylinder 11 jacks up the cross beam 2 and the D-shaped girder 7 to a certain height, insert the sleeper 10 into the gap between the cross beam 2 and the vehicle frame to ensure that the D-shaped girder 7 is suspended above the steel sleeper of the railway track 6, facilitating the longitudinal movement construction of the sliding trolley for the D-shaped girder 7.

[0040] This embodiment is used for the continuous jacking construction of the installed D-shaped girder 7 with the multi-hole box culvert under the overpass.

[0041] (1) As Figure 4As shown in the figure, this sliding trolley is erected along the length direction of the railway track 6. Two car bodies 1 are arranged at intervals front and back. The distance between the front and the rear of the two car bodies 1 is less than the length of the D-shaped girder 7. The two car bodies 1 are located on both sides of the already installed D-shaped girder 7. Manually push the car body 1 to make the first support bracket 8 or the second support bracket 9 on the fixed plate 4 of the sliding trolley correspond to the cross beam 2 of the D-shaped girder 7;

[0042] (2) As Figure 3 shown in the figure, manually install the D-shaped girders 7 on both sides on the fixed plates 4 of the two car bodies 1. The cross beam 2 of the D-shaped girder 7 is fixed on the first support bracket 8 (suitable for D16) or the second support bracket 9 (suitable for D24). The D-shaped girders 7 on both sides should be installed simultaneously. The cross beam 2 is fixed by two clamping plates of one support bracket. Lift the D-shaped girders 7 of the same model on both sides to ensure the balance of the forces on both sides of the sliding trolley and avoid overturning;

[0043] (3) As Figure 2 shown in the figure, install the lifting hydraulic cylinders 11 at the bottom of all the cross beams 2 of the two car bodies 1 of the sliding trolley. Start the lifting hydraulic cylinders 11 simultaneously to lift the cross beam 2 installed with the D-shaped girder 7 to a certain height to separate the cross beam 2 from the car body 1. Then, install the sleepers 10 in the gap between the cross beam 2 and the car body 1 to pad up the cross beam 2. Then, contract and remove the lifting hydraulic cylinders 11;

[0044] (4) After the installation is completed, start the motor to longitudinally move the D-shaped girder 7 along the length direction of the railway track 6. The traveling speed of the car body 1 is not greater than 5 m / min. When the two car bodies 1 lift and hoist the D-shaped girder 7 and travel along the railway track 6, one car body 1 provides the driving force for traveling, and the other transfer trolley is in a driven (powerless state) after releasing the brake. The driving car body 1 is responsible for pulling and guiding the driven car body 1 to ensure that the two car bodies 1 can travel synchronously, ensuring the construction efficiency and safety.

[0045] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A D-type movable beam longitudinal translation and sliding trolley, characterized in that: It includes two car bodies (1). The two car bodies (1) are arranged side by side on the railway track (6) and move along the length direction of the railway track (6). Each car body (1) includes a frame and running wheels (5) provided at the bottom of the frame. Two cross beams (2) are provided on the frame. The two cross beams (2) are spaced apart along the length direction of the frame. The cross beam (2) is detachably connected to the frame. An upright frame (3) is provided at the end of each cross beam (2). A fixing plate (4) is provided on the upright frame (3). A first support bracket (8) is provided on the fixing plate (4). The cross beams (2) at the two ends in the length direction of the D-shaped side beams (7) on both sides of the railway track (6) are respectively connected to the two first support brackets (8) of the front and rear two car bodies (1).

2. The longitudinal translation and sliding trolley of the D-shaped movable beam according to claim 1, characterized in that: The frame includes two end beams. One running wheel (5) is provided at each of the two ends of the bottoms of the two end beams along the length direction. The motor is connected to any one of the running wheels (5) through a speed reducer.

3. A D-type movable beam longitudinal translation and sliding trolley according to claim 2, characterized in that: The cross beam (2) is a square frame with a hollow interior.

4. A D-type movable beam longitudinal translation and sliding trolley according to claim 3, characterized in that: The upright frame (3) is a square frame with a hollow interior.

5. A D-type movable beam longitudinal translation and sliding trolley according to any one of claims 1-4, characterized in that: It further includes a jacking hydraulic cylinder (11) and sleepers (10). The jacking hydraulic cylinder (11) is placed below the cross beam (2). After the jacking hydraulic cylinder (11) jacks up the cross beam (2) and the D-shaped side beam (7) to a certain height, the sleepers (10) are inserted into the gap between the cross beam (2) and the frame.

6. The longitudinal translation and sliding trolley of the D-shaped temporary beam according to claim 5, characterized in that: A second support bracket (9) is further provided on the fixing plate (4).

7. A D-shaped movable beam longitudinal translation and sliding trolley according to claim 6, characterized in that: The first support bracket (8) and the second support bracket (9) are fixed to the fixing plate (4) by bolts.

8. A D-shaped movable beam longitudinal translation and sliding trolley according to claim 7, characterized in that: Both the first support bracket (8) and the second support bracket (9) include two clamping plates. The cross beam (2) of the D-shaped side beam (7) is placed between the two clamping plates.

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