Light wheel-rail type railway construction auxiliary beam moving trolley

Abstract

The utility model relates to the technical field of railway construction auxiliary equipment, and mainly discloses a light wheel track type railway construction auxiliary beam moving trolley which is characterized in that two trolley bodies are erected on a railway track side by side and walk in the length direction of the railway track, and each trolley body comprises a trolley frame and walking wheels arranged at the bottom of the trolley frame; two transverse telescopic mechanisms are arranged on the vehicle frame in the length direction of the vehicle frame in a spaced mode, the two transverse telescopic mechanisms are each provided with a vertical lifting mechanism, the transverse telescopic mechanisms drive the vertical lifting mechanisms to do transverse reciprocating motion, and the two vertical lifting mechanisms are each provided with a lifting plate. The vertical lifting mechanism drives the lifting plate to do vertical reciprocating motion, a first supporting bracket and a second supporting bracket are arranged on the lifting plate, and the moving trolley has the functions of transporting and constructing the D-shaped auxiliary beam and has the functions of vertically lifting the D-shaped auxiliary beam, horizontally adjusting the distance between the D-shaped auxiliary beam and the center of a railway, walking along the railway and the like; the moving trolley has the advantages of being universal, flexible, safe, multifunctional and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of railway construction auxiliary equipment, in particular to a light wheel-rail type railway construction movable girder trolley. Background Technique

[0002] When a highway passes under a railway and an overpass needs to be built or other buildings need to be added (rebuilt) on the existing line, in order not to affect the normal operation of the railway and when it is not feasible or economical to detour, the D-type movable 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-type movable girder is to build temporary supports for the movable girder on both sides of the existing line at the bridge position. After the temporary supports reach the design strength, the D-type movable girder is installed. Trains pass through the existing line reinforced with the D-type movable girder at a speed limited to 45 km / h, and then the under-bridge culvert operation construction is carried out. After the under-bridge culvert operation construction is completed, the movable girder is removed, the line is restored, and the train resumes normal speed operation.

[0003] The structure of the D-type movable girder mainly consists of two longitudinal girders and several cross girders. The specific models are such as D16 type and D24 type, which are respectively 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-type movable girder include bracket feet, gusset plates, diagonal rods, ballast retaining plates, positioning angle irons and special rail fasteners, and all components are connected by refined bolts.

[0004] In the traditional construction plan, a crane is commonly used to hoist the D-type movable 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 it is easy to be too close to the railway catenary during the construction process, posing a safety hazard. Moreover, the construction time is long, and multiple construction time windows need to be applied for, resulting in low efficiency. Another solution is that workers first use a chain block to hoist the assembled D-type movable girder onto the movable trolley, and then push the movable trolley along the railway track direction by a large amount of manpower. After reaching the designated position, the movable girder is lowered to the designated position by a chain block again. During the process of transporting the movable girder, a large amount of manpower is required to push the beam transport vehicle, and the forward speed is very slow. Another problem is that the distance from the center line of the D-type movable girder to the center line of the railway is also different, and the existing beam transport vehicle cannot transport the movable girder perpendicular to the railway track direction, and still requires manual adjustment, resulting in lower construction efficiency and greater handling difficulty.

[0005] In addition, according to requirements, the D-type movable girder is selected at different positions according to the location of the building. The building height of the D-type low-height movable girder refers to the height from the rail bottom to the lower flange of the longitudinal girder of the movable girder, which is a valuable space for controlling the project scale and cost. Since the building height of the movable girder sometimes directly affects the project cost, for example, when passing under an overpass, the lower the building height of the movable girder, the smaller the works of the approach road and the box body. The D16-type low-height movable girder is provided with two forms of high and low positions, and the D24-type low-height D-type movable girder is provided with four forms of high, medium, low, and lowest. The existing beam transport vehicles cannot meet the current requirements for the transportation and laying of the D-type movable girder. Summary of the Invention

[0006] The present invention provides a light wheel-rail type railway construction movable girder transfer trolley, which solves the technical problems in the prior art that the transportation of the D-type movable girder is inconvenient, the construction efficiency is low, the existing beam transport vehicles cannot meet the installation of different heights of different models of D-type movable girders, and the existing beam transport vehicles cannot meet the requirements of different distances between the D-type movable girder and the railway center.

[0007] To achieve the above object, the present invention adopts the following technical solutions: A light wheel-rail type railway construction movable girder transfer trolley includes 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. Each single car body includes a frame and traveling wheels arranged at the bottom of the frame. Two transverse telescopic mechanisms are arranged at intervals along the length direction of the frame on the frame. The telescopic directions of the two transverse telescopic mechanisms are opposite to each other. A vertical lifting mechanism is arranged on each of the two transverse telescopic mechanisms. The transverse telescopic mechanism drives the vertical lifting mechanism to move reciprocally in the transverse direction. A lifting plate is arranged on each of the two vertical lifting mechanisms. The vertical lifting mechanism drives the lifting plate to move reciprocally in the vertical direction. A first support bracket is arranged on the lifting plate. The cross beams at both ends in the length direction of the D-type movable girders on both sides of the railway track are respectively connected to the two first support brackets of the front and rear two car bodies. A motor is arranged on any one of the car bodies, and the motor is used to drive the movement of the car body. Through the above technical solutions, the two car bodies and the D-type movable girders on both sides together form a transfer trolley. The car body with a motor is connected to the other car body through the D-type movable girder. When the two car bodies lift and move the D-type movable girder along the railway track direction, one car body is the driving transfer trolley moving along the railway, and the other car body is in a driven (powerless state). The driving transfer trolley is responsible for pulling the driven transfer trolley through the D-type movable girder to ensure that the two transfer trolleys can operate coordinately and maintain a certain speed.

[0008] A further solution of the present invention is that the frame includes two end beams. A traveling wheel is arranged at each of the two ends of the bottom of the two end beams. The motor is connected to any one of the traveling wheels through a reducer.

[0009] A further solution of the present utility model is that the horizontal telescopic mechanism includes a main arm, a telescopic arm and a telescopic hydraulic cylinder. The main arm is horizontally arranged across two end beams and fixedly connected to the end beams. The telescopic arm is sleeved inside the main arm and slidably connected to the inside of the main arm. One end of the cylinder body of the telescopic hydraulic cylinder is connected to the main arm, and one end of the telescopic rod of the telescopic hydraulic cylinder is connected to the telescopic arm. The telescopic hydraulic cylinder drives the telescopic arm to reciprocate horizontally along the main arm.

[0010] A further solution of the present utility model is that a guiding roller is arranged at the bottom of the telescopic arm. Specifically, the guiding roller is installed outside the bottom plate of the main arm, and part of the guiding roller passes through the bottom of the main arm and is placed inside the bottom plate of the main arm. The bottom plate of the telescopic arm contacts the guiding roller.

[0011] A further solution of the present utility model is that the vertical lifting mechanism includes a vertical lifting frame and a lifting hydraulic cylinder. The vertical lifting frame is fixedly connected to the telescopic arm. One end of the cylinder body of the lifting hydraulic cylinder is connected to the bottom of the vertical lifting frame, and one end of the telescopic rod of the lifting hydraulic cylinder is connected to the vertical lifting frame. The lifting hydraulic cylinder drives the lifting plate 4 to reciprocate vertically along the vertical lifting frame.

[0012] A further solution of the present utility model is that a first track and a second track are arranged on the vertical lifting frame, and a sliding plate is arranged on the lifting plate. The lifting plate is slidably connected to the first track, and the sliding plate is slidably connected to the second track.

[0013] A further solution of the present utility model is that a leg mechanism is further arranged at the bottom of the vertical lifting mechanism. The leg mechanism includes a leg hydraulic cylinder and a leg disc. One end of the cylinder body of the leg hydraulic cylinder is connected to the vertical lifting frame, and one end of the telescopic rod of the leg hydraulic cylinder is hinged to the leg disc. When the telescopic rod extends, it supports the vertical lifting frame.

[0014] A further solution of the present utility model is that the upper end of the lifting plate is hinged to one end of a lifting pull rod, and the other end of the lifting pull rod is hinged to a clamp. The clamp is C-shaped, and a clamping bolt is arranged at the bottom of the clamp.

[0015] A further solution of the present utility model is that a second supporting bracket is arranged on the lifting plate.

[0016] A further solution of the present utility model is that it further includes a hydraulic and control system. The hydraulic and control system includes a hydraulic oil tank, a control hydraulic valve and a hydraulic lock. The operation of each mechanism of the transfer trolley is realized by controlling the hydraulic valve.

[0017] Compared with the prior art, the beneficial effects of the present utility model are:

[0018] The utility model provides a light rail-wheel type railway construction movable girder transporter. This transporter combines the functions of transporting and constructing D-type movable girders. It has functions such as vertically lifting the D-type movable girder, horizontally adjusting the distance between the D-type movable girder and the railway center, and traveling along the railway. It is applicable to various layout forms of D16 and D24 D-type movable girders and construction requirements such as different railway track line spacings. It changes the situation in conventional construction where the hoisting, towing, and positioning of the movable girder rely on manual labor, and solves the universality problem that different line spacings require the design and manufacture of different transporters. The transporter has characteristics such as universality, flexibility, safety, and multi-functionality. Brief Description of the Drawings

[0019] 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 use in the description of the embodiments or the prior art. Obviously, the following-described drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic diagram of the overall structure of the transporter of the present utility model in the use state after installing the D-type movable girder;

[0021] Figure 2 It is a three-dimensional view of the transporter of the present utility model;

[0022] Figure 3 It is a top view of the transporter of the present utility model;

[0023] Figure 4 For the present utility model Figure 3 A cross-sectional view along the B-B direction;

[0024] Figure 5 It is a top view of the transporter of the present utility model in the use state after installing the D-type movable girder;

[0025] Figure 6 It is a side view of the transporter of the present utility model in the use state.

[0026] In the figure, 1. Frame, 2. Horizontal telescopic mechanism, 3. Vertical lifting mechanism, 4. Lifting plate, 5. Suspension device, 6. Traveling wheel, 7. Leg mechanism, 8. Railway track, 9. D-type movable girder, 10. First support bracket, 11. Second support bracket, 12. Main arm, 13. Telescopic arm, 14. Telescopic hydraulic cylinder, 15. Guide roller, 16. Lifting hydraulic cylinder, 17. First track, 18. Second track, 19. Slide plate, 20. Leg hydraulic cylinder, 21. Leg disc, 22. Lifting pull rod, 23. Fixture, 24. Clamping bolt, 25. Motor, 26. Vertical lifting frame body. Detailed Embodiment

[0027] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the 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 shall fall within the protection scope of the present utility model.

[0028] Embodiment 1

[0029] As Figure 1-2 shown, a light rail-wheel type railway construction movable girder trolley includes 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 8. Each car body includes a frame 1 and traveling wheels 6 provided at the bottom of the frame 1. The traveling wheels 6 are track wheels. Specifically, the frame 1 includes two end beams, and one traveling wheel 6 is provided at each of the two ends of the bottom of the two end beams. The car body has high strength and stiffness, and is used to support the hoisting and moving operations of the movable girder trolley, providing good stability during the hoisting and traveling processes of the movable girder trolley.

[0030] A brake is further provided on the traveling wheel 6.

[0031] As Figure 3 shown, two transverse telescopic mechanisms 2 are provided on the frame 1 at intervals along the length direction of the frame 1. The telescopic directions of the two transverse telescopic mechanisms 2 are opposite. Specifically, as Figure 4 shown, the transverse telescopic mechanism 2 includes a main arm 12, a telescopic arm 13, and a telescopic hydraulic cylinder 14. The main arm 12 is horizontally arranged across the two end beams and fixedly connected to the end beams. The telescopic arm 13 is sleeved inside the main arm 12 and slidably connected to the inside of the main arm 12. One end of the cylinder body of the telescopic hydraulic cylinder 14 is connected to the main arm 12, and one end of the telescopic rod of the telescopic hydraulic cylinder 14 is connected to the telescopic arm 13. The telescopic hydraulic cylinder 14 drives the telescopic arm 13 to reciprocate horizontally along the main arm 12.

[0032] A guiding roller 15 is provided at the bottom of the telescopic arm 13. Specifically, the guiding roller 15 is installed outside the bottom plate of the main arm 12, and part of the guiding roller 15 passes through the bottom of the main arm 12 and is placed inside the bottom plate of the main arm 12. The bottom plate of the telescopic arm 13 is in contact with the guiding roller 15.

[0033] As Figure 3 shown, a vertical lifting mechanism 3 is provided on each of the two transverse telescopic mechanisms 2. The transverse telescopic mechanism 2 drives the vertical lifting mechanism 3 to reciprocate horizontally. A lifting plate 4 is provided on each of the two vertical lifting mechanisms 3. The vertical lifting mechanism 3 drives the lifting plate 4 to reciprocate vertically. As Figure 4As shown in the figure, the vertical lifting mechanism 3 includes a vertical lifting frame 26 and a lifting hydraulic cylinder 16. The vertical lifting frame 26 is fixedly connected to the telescopic arm 13. One end of the cylinder body of the lifting hydraulic cylinder 16 is connected to the bottom of the vertical lifting frame 26, and one end of the telescopic rod of the lifting hydraulic cylinder 16 is connected to the vertical lifting frame 26. The lifting hydraulic cylinder 16 drives the lifting frame to reciprocate in the vertical direction of the vertical lifting frame 26.

[0034] As Figure 3 shown in the figure, a first track 17 and a second track 18 are provided on the vertical lifting frame 26. A sliding plate 19 is provided on the lifting plate 4. The lifting plate 4 is slidably connected to the first track 17, and the sliding plate 19 is slidably connected to the second track 18.

[0035] The end beam, the main arm 12, the telescopic arm 13 and the vertical lifting frame 26 are all of frame structure to achieve light weight.

[0036] Unload the D-shaped portable beam 9 from an open position on both sides of the railway track 8. A first support bracket 10 is provided on the lifting plate 4. The cross beams at both ends in the length direction of the D-shaped portable beam 9 on both sides of the railway track 8 are respectively connected to the two first support brackets 10 of the front and rear vehicle bodies. A further solution of the present utility model is that, as Figure 4 shown in the figure, the upper end of the lifting plate 4 is hinged to one end of the lifting pull rod 22, and the other end of the lifting pull rod 22 is hinged to the fixture 23. The fixture 23 is C-shaped. A clamping bolt 24 is provided at the bottom of the fixture 23. The fixture 23 is clamped on the outer side of the upper wing plate of the longitudinal beam of the D-shaped portable beam 9 and clamped by the clamping bolt 24 to achieve clamping at two positions, making the movement and lifting of the D-shaped portable beam 9 more stable.

[0037] As Figure 6 shown in the figure, a motor 25 is provided on any one of the vehicle bodies. The motor 25 is connected to any one of the traveling wheels 6 through a speed reducer. The motor 25 is used to drive the movement of the vehicle body. Through the above technical solution, as Figure 5 shown in the figure, the two vehicle bodies and the D-shaped portable beams 9 on both sides together form a transfer trolley. The vehicle body with the motor 25 is connected to the other vehicle body through the D-shaped portable beam 9. When the two vehicle bodies lift and move the D-shaped portable beam 9 along the direction of the railway track 8, one vehicle body is the driving transfer trolley running along the railway, and the other vehicle body is in a driven (powerless state). The driving transfer trolley is responsible for pulling the driven transfer trolley through the D-shaped portable beam 9 to ensure that the two transfer trolleys can run coordinately and maintain a certain speed.

[0038] A further solution of the present utility model is that a leg mechanism 7 is further provided at the bottom of the vertical lifting mechanism 3. The leg mechanism 7 includes a leg hydraulic cylinder 20 and a leg disc 21. One end of the cylinder body of the leg hydraulic cylinder 20 is connected to the vertical lifting frame 26, and one end of the telescopic rod of the leg hydraulic cylinder 20 is hinged to the leg disc 21. When the telescopic rod extends, it supports the vertical lifting frame 26 and ensures the stability of the legs, preventing unstable factors during construction and ensuring safe construction.

[0039] A further solution of the present utility model is that a second support bracket 11 is provided on the lifting plate 4.

[0040] Working principle: The present transport trolley realizes the following functions:

[0041] 1. Longitudinal running function

[0042] The transport trolley realizes the longitudinal running (lifting the temporary beam) or no-load running along the railway track 8 through the walking wheels 6, meeting the hoisting requirements of the D-type temporary beam 9. The same type of D-type temporary beam 9 is lifted on both sides, and the running speed of the vehicle body is not greater than 5 m / min. When two vehicle bodies lift the D-type temporary beam 9 and run along the railway track 8, one vehicle body provides the driving force for running, and the other transport trolley is in a driven (powerless state) after releasing the brake of the walking device. The driving transport trolley is responsible for pulling and guiding the driven transport trolley to ensure that the two transport trolleys can run synchronously, ensuring construction efficiency and safety.

[0043] 2. Vertical lifting function

[0044] The transport trolley realizes the vertical lifting (or lowering) of the D-type temporary beam 9 through the vertical lifting mechanism 3. The leg mechanism 7 is provided inside the vertical lifting mechanism 3 and is used to support the transport trolley when vertically lifting (lowering) the D-type temporary beam 9 to prevent the transport trolley from tipping over. The maximum extended length of the leg mechanism 7 is not less than 280 mm; after the leg mechanism 7 is fully retracted, the distance from the bottom surface of the leg disc 21 of the leg mechanism 7 to the rail surface is not less than 50 mm.

[0045] After the leg disc 21 of the leg mechanism 7 drops and the safety of the transport trolley is determined, the D-type temporary beam 9 is connected to the lifting plate 4 through the first support bracket 10 (applicable to D16) or the second support bracket 11 (applicable to D24), the lifting tie rod 22, and the fixture 23. The length of the lifting tie rod 22 is determined according to the type of the beam, and the lifting (or lowering) of the D-type temporary beam 9 is controlled by the extension (or contraction) of the lifting hydraulic cylinder 16. The transport trolley can meet the following three construction dimension requirements: the bottom surface of the D-type temporary beam 9 to the bottom of the rail, and the top surface of the D-type temporary beam 9 to the rail surface; the vertical lifting height can lift the D-type temporary beam 9 in the three construction dimensions to a height where the bottom surface of the D-type temporary beam 9 is 51 mm higher than the bottom of the rail, that is, the lifting height is not less than 650 mm.

[0046] 3. Lateral running function

[0047] The transfer trolley realizes the lateral telescoping of the vertical lifting mechanism 3 in the direction perpendicular to the railway track 8 through the telescopic arm 13 of the lateral telescoping mechanism 2, so as to meet the construction requirements of hoisting the portable beam with different line spacings of the railway track 8. The lateral running of the transfer trolley can achieve the minimum lateral position: the center of the D-type portable beam 9 is 1720 mm away from the railway center line, and the maximum lateral position: the center of the D-type portable beam 9 is 2740 mm away from the railway center line.

[0048] 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-restrictive. 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 embraced within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

Claims

1. A light rail-wheel type railway construction movable girder transport trolley, characterized in that: The invention comprises two car bodies, wherein the two car bodies are arranged side by side on a railway track (8) and travel along the length direction of the railway track (8), wherein a single car body comprises a frame (1) and a running wheel (6) arranged at the bottom of the frame (1), wherein two transverse telescopic mechanisms (2) are arranged at intervals along the length direction of the frame (1) on the frame (1), wherein the telescopic directions of the two transverse telescopic mechanisms (2) are arranged opposite to each other, wherein each of the two transverse telescopic mechanisms (2) is provided with a vertical lifting mechanism (3), wherein the transverse telescopic mechanism (2) drives the vertical lifting mechanism (3) to reciprocate laterally, wherein each of the two vertical lifting mechanisms (3) is provided with a lifting plate (4), wherein the vertical lifting mechanism (3) drives the lifting plate (4) to reciprocate vertically, wherein a first supporting bracket (10) is arranged on the lifting plate (4), wherein the cross beams at both ends of the length direction of the D-shaped beam (9) on both sides of the railway track (8) are respectively connected to the two first supporting brackets (10) of the front and rear car bodies, and wherein a motor (25) is arranged on any of the car bodies.

2. The light rail - type railway construction portable girder moving trolley according to claim 1, wherein: The frame (1) comprises two end beams, each of which is provided with a running wheel (6) at both ends of the bottom of the two end beams, and the motor (25) is connected to any running wheel (6) via a reducer.

3. The light rail-mounted railway construction movable girder transporter according to claim 2, wherein: The lateral telescopic mechanism (2) comprises a main arm (12), a telescopic arm (13) and a telescopic hydraulic cylinder (14); the main arm (12) is arranged across two end beams and is fixedly connected to the end beams; the telescopic arm (13) is sleeved inside the main arm (12) and is slidably connected to the inside of the main arm (12); one end of the cylinder body of the telescopic hydraulic cylinder (14) is connected to the main arm (12); one end of the telescopic rod of the telescopic hydraulic cylinder (14) is connected to the telescopic arm (13); the telescopic hydraulic cylinder (14) drives the telescopic arm (13) to reciprocate laterally along the main arm (12).

4. The light rail - type railway construction movable girder transfer trolley according to claim 3, wherein: A guide roller (15) is provided at the bottom of the telescopic arm (13).

5. A light rail-mounted railway construction portable beam transfer trolley according to any one of claims 1-3, characterized in that: The vertical lifting mechanism (3) comprises a vertical lifting frame (26) and a lifting hydraulic cylinder (16); the vertical lifting frame (26) is fixedly connected to the telescopic arm (13); one end of the cylinder body of the lifting hydraulic cylinder (16) is connected to the bottom of the vertical lifting frame (26); one end of the telescopic rod of the lifting hydraulic cylinder (16) is connected to the vertical lifting frame (26); the lifting hydraulic cylinder (16) drives the lifting plate (4) to reciprocate in the vertical direction of the vertical lifting frame (26).

6. The light rail - type railway construction movable girder transporter trolley according to claim 5, characterized in that: The vertical lifting frame (26) is provided with a first track (17) and a second track (18), the lifting plate (4) is provided with a slide plate (19), the lifting plate (4) is slidably connected to the first track (17), and the slide plate (19) is slidably connected to the second track (18).

7. A light rail - type railway construction movable girder transporter according to claim 6, characterized in that: A leg mechanism (7) is also provided at the bottom of the vertical lifting mechanism (3), and the leg mechanism (7) comprises a leg hydraulic cylinder (20) and a leg disc (21), one end of the cylinder body of the leg hydraulic cylinder (20) is connected to the vertical lifting frame (26), and one end of the telescopic rod of the leg hydraulic cylinder (20) is hinged to the leg disc (21).

8. A light rail - type railway construction movable girder transfer trolley according to any one of claims 6 - 7, characterized in that: The upper end of the lifting plate (4) is hinged to one end of the lifting pull rod (22), the other end of the lifting pull rod (22) is hinged to the fixture (23), the fixture (23) is C-shaped, and a clamping bolt (24) is arranged at the bottom of the fixture (23).

9. The light rail-wheel type railway construction girder moving trolley according to claim 8, characterized in that: A second supporting bracket (11) is arranged on the lifting plate (4).

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