Hydraulic supporting device for multi-directional positioning railway track gantry

Abstract

The utility model discloses a multi-directional positioning railway track gantry hydraulic supporting device which comprises a gantry body, hoisting equipment is installed at the upper end of the gantry body, a walking mechanism is arranged at the lower end of the gantry body, installation plates are fixed to the two sides of the gantry body, bearing blocks are fixed to one sides of the installation plates, and the bearing blocks are fixed to the other sides of the installation plates. A sliding groove is formed in one side of the bearing block, a forward and reverse screw rod is jointly and rotationally connected between the opposite side walls in the sliding groove, and two sliding blocks are installed in the sliding groove. The portal frame can be accurately positioned to a position where the portal frame needs to work, improves the construction efficiency and the installation precision of track parts, meanwhile can enable supporting force to be evenly distributed, avoids the problem that a traditional portal frame is uneven in supporting force on a curve track section, further enhances the supporting stability, and reduces the construction cost. Risks of shaking and inclining of the portal frame in the working process are reduced, and life safety of constructors and normal operation of construction equipment are guaranteed.

Description

Multi-directional positioning railway track gantry hydraulic support device Technical Field

[0001] This utility model relates to the field of hydraulic support technology for railway track gantry, and in particular to a multi-directional positioning hydraulic support device for railway track gantry. Background Technology

[0002] In the construction and maintenance of railway tracks, gantry cranes are crucial pieces of equipment. They are used to hoist and transport large track components, such as rails and sleepers, playing a key role in improving construction efficiency and ensuring construction safety. However, traditional gantry cranes used in railway track maintenance have many drawbacks.

[0003] Regarding support stability, the problem of uneven support force distribution may not be very obvious on straight tracks with traditional gantry cranes. However, on curved track sections, due to the curvature of the track, the force situation at the support points of the gantry crane becomes more complex, and uneven support force is prone to occur. This may cause the gantry crane to sway or even tilt during operation, seriously threatening the life safety of construction personnel and the normal operation of construction equipment. To address this issue, we have proposed a multi-directional positioning railway track gantry hydraulic support device. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a multi-directional positioning railway track gantry hydraulic support device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-directional positioning railway track gantry hydraulic support device includes a gantry frame body. A hoisting device is installed at the upper end of the gantry frame body, and a traveling mechanism is provided at the lower end. Mounting plates are fixed to both sides of the gantry frame body. A bearing block is fixed to one side of each mounting plate, and a sliding groove is provided on one side of each bearing block. A forward and reverse screw is rotatably connected between the opposite sidewalls of the sliding groove. Two sliders are installed in the sliding groove, and the two sliders are threaded to the two ends of the forward and reverse screws, respectively. A rotating device is connected to one end of each forward and reverse screw. A support arm is fixed to one side of each slider, and a rotating arm is rotatably connected to the lower end of the support arm. The rotating arm and the support arm are connected by an adjusting mechanism. A hydraulic support mechanism is installed at the lower end of the rotating arm, and a hydraulic limiting mechanism is fixed to one side of the rotating arm. The lower end of the hydraulic limiting mechanism passes through the hydraulic support mechanism. Two rotating arms on the same side are connected by a guide mechanism.

[0007] Preferably, the traveling mechanism includes track wheels fixedly hung at the four corners of the lower end of the gantry frame body, and the lower end of the gantry frame body is provided with a track, with the four track wheels installed on the track.

[0008] Preferably, the rotating device includes a servo motor mounted on one side of the support block, and the output shaft end of the servo motor is connected to one side of the forward and reverse screws.

[0009] Preferably, the adjusting mechanism includes a first hydraulic cylinder rotatably connected to one side of the lower end of the support arm, and the piston rod end of the first hydraulic cylinder is rotatably connected to one side of the rotating arm.

[0010] Preferably, the hydraulic support mechanism includes a third hydraulic cylinder installed at the lower end of the rotating arm, and a pad is rotatably connected to the end of the piston rod of the third hydraulic cylinder.

[0011] Preferably, the hydraulic limiting mechanism includes a mounting plate fixed to one side of the rotating arm, a second hydraulic cylinder fixed on the mounting plate, a connector fixed to the end of the piston rod of the second hydraulic cylinder, a reinforcing rod threaded to the lower end of the connector, an installation port on the pad, the lower end of the reinforcing rod passing through the installation port and extending to the lower end of the connector, and the lower end of the reinforcing rod being tapered.

[0012] Preferably, the guiding mechanism includes a guide rod fixed to one side of one of the rotating arms on the same side, one end of the guide rod passing through the other rotating arm on the same side and extending to its side.

[0013] In this utility model, when providing support:

[0014] 1. Move to working position: The track wheels at the lower end of the gantry frame move along the track, transporting the entire device to the railway track where maintenance is required, including curves;

[0015] 2. Adjusting the position of the support arm: When support is needed at the bend, the servo motor installed on one side of the load-bearing block starts and drives the forward and reverse screws to rotate as a rotating device. Since the two sliders are screwed to the two ends of the forward and reverse screws respectively, the rotation of the forward and reverse screws will cause the two sliders to move to the middle or to the sides at the same time, thereby driving the support arm fixed on one side of the slider to move to the appropriate position.

[0016] 3. Adjusting the angle of the rotating arm: The first hydraulic cylinder connected to the lower end of the support arm is rotated through the adjustment mechanism. Its piston rod extends and retracts, driving the rotating arm to rotate and unfold the rotating arm to the corresponding tilt angle. The two first hydraulic cylinders on the same side are controlled by a synchronous control system to ensure that the movements of the rotating arms on both sides are consistent.

[0017] 4. Stable support: The hydraulic support mechanism starts to work, the piston rod of the third hydraulic cylinder installed at the lower end of the rotating arm extends, driving the pad block to descend and contact the ground, thus achieving stable support;

[0018] 5. Reinforcement and support: When the hydraulic limit mechanism is activated, the piston rod of the second hydraulic cylinder, which is fixed on the mounting plate on one side of the rotating arm, extends and drives the connector and reinforcing rod to descend. The lower end of the reinforcing rod passes through the mounting hole on the pad and is inserted into the soil to further reinforce the support.

[0019] 6. Lifting operation: After the support and reinforcement are completed, the lifting equipment at the upper end of the gantry frame body begins to lift and transport the track components.

[0020] This utility model has the following advantages:

[0021] 1. By rotating the equipment to drive the forward and reverse screws, the position of the support arm can be precisely controlled, so that the gantry can be accurately positioned to the working position even at curves, improving construction efficiency and the installation accuracy of track components;

[0022] 2. The adjustment mechanism can adjust the tilt angle of the rotating arm according to the curvature of the curve, so that the support force is evenly distributed, avoiding the problem of uneven support force of traditional gantry cranes on curved track sections. The combined use of hydraulic support mechanism and hydraulic limit mechanism further enhances the support stability of the gantry crane and ensures the safety of the construction process.

[0023] 3. At curves, multi-directional positioning and hydraulic support can effectively solve the positioning and support problems of traditional gantry cranes in complex track environments;

[0024] In summary, this utility model can accurately locate the work position, improve construction efficiency and the installation accuracy of track components, and at the same time, it can distribute the support force evenly, avoiding the problem of uneven support force in curved track sections of traditional gantry cranes. This further enhances the support stability of the gantry crane, reduces the risk of swaying and tilting during operation, and ensures the safety of construction personnel and the normal operation of construction equipment. Attached Figure Description

[0025] Figure 1 is a structural diagram of this utility model;

[0026] Figure 2 is a structural diagram of the single-sided mounting plate of this utility model;

[0027] Figure 3 is a structural diagram of the hydraulic limiting mechanism of this utility model;

[0028] Figure 4 is a structural diagram of the connection between the slider and the forward and reverse screws of this utility model.

[0029] In the diagram: 1 hoisting equipment, 2 gantry frame body, 3 servo motor, 4 first hydraulic cylinder, 5 second hydraulic cylinder, 6 pad block, 7 guide rod, 8 mounting plate, 9 third hydraulic cylinder, 10 track wheel, 11 track, 12 support arm, 13 rotating arm, 14 reinforcing rod, 15 slider, 16 slide groove, 17 bearing block, 18 forward and reverse screws, 19 connector, 20 mounting plate. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Referring to Figures 1-4, the multi-directional positioning railway track gantry hydraulic support device includes a gantry frame body 2, and a hoisting device 1 is installed on the upper end of the gantry frame body 2. The hoisting device 1 is used for hoisting and handling track components. An electric hoist with a large lifting capacity is selected as the hoisting device to ensure efficient and safe operation.

[0032] The lower end of the gantry frame body 2 is provided with a traveling mechanism. Mounting plates 20 are fixed on both sides of the gantry frame body 2. A bearing block 17 is fixed on one side of the mounting plate 20. The bearing block 17 is made of high-strength alloy material, which has good rigidity and stability and can withstand the weight and force of the support arm and related equipment.

[0033] A slide groove 16 is provided on one side of the bearing block 17. A forward and reverse screw 18 is rotatably connected between the opposite side walls of the slide groove 16. Two sliders 15 are installed in the slide groove 16. The two sliders 15 are threaded to the two ends of the forward and reverse screw 18 respectively. One end of the forward and reverse screw 18 is connected to a rotating device.

[0034] A support arm 12 is fixed to one side of the slider 15. A rotating arm 13 is rotatably connected to the lower end of the support arm 12. The rotating arm 13 and the support arm 12 are connected by an adjustment mechanism. A hydraulic support mechanism is installed at the lower end of the rotating arm 13. A hydraulic limiting mechanism is fixed to one side of the rotating arm 13. The lower end of the hydraulic limiting mechanism passes through the hydraulic support mechanism. The two rotating arms 13 on the same side are connected by a guide mechanism. The design of the support arm 12 and the rotating arm 13 allows the device to adjust the angle and position of the support according to actual needs.

[0035] The traveling mechanism includes track wheels 10 fixedly hung at the four corners of the lower end of the gantry frame body 2. The lower end of the gantry frame body 2 is provided with a track 11, and the four track wheels 10 are installed on the track 11. The rotating device includes a servo motor 3 installed on one side of the bearing block 17. The output shaft end of the servo motor 3 is connected to one side of the forward and reverse screw 18. The forward and reverse screw 18 has high thread precision, which can ensure the accuracy and stability of the movement of the slider 15. At the same time, the slider 15 and the slide groove 16 adopt a high-precision fit, which reduces the jamming phenomenon during the movement. By rotating the forward and reverse screw 18 through the rotating device, the two sliders 15 can move to the center at the same time or to both sides at the same time.

[0036] The adjustment mechanism includes a first hydraulic cylinder 4 rotatably connected to one side of the lower end of the support arm 12. The piston rod of the first hydraulic cylinder 4 is rotatably connected to one side of the rotating arm 13. By extending and retracting the piston rod of the first hydraulic cylinder 4, the rotating arm 13 is rotated, which can unfold the rotating arm 13 to the corresponding tilt angle. The two first hydraulic cylinders 4 on the same side are controlled by a synchronous control system to ensure that the movements of the rotating arms 13 on both sides are consistent. The synchronous control system adopts hydraulic synchronization technology, which can accurately control the extension and retraction speed and stroke of the piston rods of the two first hydraulic cylinders 4, ensuring the synchronicity of the movements of the rotating arms 13 and improving the stability of the support.

[0037] The hydraulic support mechanism includes a third hydraulic cylinder 9 installed at the lower end of the rotating arm 13. The piston rod of the third hydraulic cylinder 9 is rotatably connected to a pad 6. The bottom of the pad 6 adopts an anti-slip design and is equipped with a rubber pad, which can increase the friction with the ground and improve the stability of the support. At the same time, the material of the pad 6 has good compressive strength and can withstand greater pressure.

[0038] The hydraulic limiting mechanism includes a mounting plate 8 fixed to one side of the rotating arm 13. A second hydraulic cylinder 5 is fixed on the mounting plate 8. A connector 19 is fixed to the end of the piston rod of the second hydraulic cylinder 5. A reinforcing rod 14 is threaded to the lower end of the connector 19. The pad 6 is provided with an installation port. The lower end of the reinforcing rod 14 passes through the installation port and extends to the lower end of the connector 19. The lower end of the reinforcing rod 14 is tapered. When the piston rod of the second hydraulic cylinder 5 extends, it drives the connector 19 and the reinforcing rod 14 to descend. The lower end of the reinforcing rod 14 passes through the installation port on the pad 6 and is inserted into the soil to further reinforce the support. The surface of the reinforcing rod 14 is specially treated and sprayed with anti-corrosion paint, which can improve its corrosion resistance and extend its service life. At the same time, the tapered lower end design of the reinforcing rod 14 can be more easily inserted into the soil, enhancing the stability of the support.

[0039] The guiding mechanism includes a guide rod 7 fixed to one side of one of the rotating arms 13 on the same side. One end of the guide rod 7 passes through the other rotating arm 13 on the same side and extends to one side thereon. The surface of the guide rod 7 is smooth and the gap between it and the rotating arm 13 is small, which can effectively reduce the shaking of the rotating arm 13 during the movement and improve the overall stability of the device.

[0040] In this utility model, when providing support:

[0041] 1. Move to working position: The track wheel 10 at the lower end of the gantry frame body 2 moves along the track 11 to transport the entire device to the railway track position that needs maintenance, including curves;

[0042] 2. Adjusting the position of the support arm: When support is needed at the bend, the servo motor 3 installed on one side of the bearing block 17 is started. As a rotating device, it drives the forward and reverse screws 18 to rotate. Since the two sliders 15 are screwed to the two ends of the forward and reverse screws 18 respectively, the rotation of the forward and reverse screws 18 will cause the two sliders 15 to move to the middle or to both sides at the same time, thereby driving the support arm 12 fixed on one side of the slider 15 to move to the appropriate position.

[0043] 3. Adjusting the angle of the rotating arm: The piston rod of the first hydraulic cylinder 4, which is rotatably connected to the lower end of the support arm 12, extends and retracts to drive the rotating arm 13 to rotate, thus unfolding the rotating arm 13 to the corresponding tilt angle. The two first hydraulic cylinders 4 on the same side are controlled by a synchronous control system to ensure that the movements of the rotating arms 13 on both sides are consistent.

[0044] 4. Stable support: The hydraulic support mechanism starts to work. The piston rod of the third hydraulic cylinder 9 installed at the lower end of the rotating arm 13 extends, driving the pad block 6 to descend and contact the ground, thus achieving stable support.

[0045] 5. Reinforcement and support: When the hydraulic limit mechanism is activated, the piston rod of the second hydraulic cylinder 5, which is fixed on the mounting plate 8 on one side of the rotating arm 13, extends and drives the connector 19 and the reinforcing rod 14 to descend. The lower end of the reinforcing rod 14 passes through the mounting port on the pad block 6 and is inserted into the soil to further reinforce the support.

[0046] 6. Lifting operation: After the support and reinforcement are completed, the lifting equipment 1 at the upper end of the gantry frame body 2 begins to lift and transport the track components.

[0047] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A multi-directional positioning railway track gantry hydraulic support device, comprising a gantry frame body (2), characterized in that, A hoisting device (1) is installed at the upper end of the gantry frame body (2), and a traveling mechanism is provided at the lower end of the gantry frame body (2). Mounting plates (20) are fixed on both sides of the gantry frame body (2). A bearing block (17) is fixed on one side of the mounting plate (20). A sliding groove (16) is provided on one side of the bearing block (17). A forward and reverse screw (18) is rotatably connected between the opposite side walls in the sliding groove (16). Two sliders (15) are installed in the sliding groove (16). The two sliders (15) are respectively threaded onto the forward and reverse screws (18). At both ends of the slider (15), one end of the forward and reverse screw (18) is connected to a rotating device, one side of the slider (15) is fixed with a support arm (12), the lower end of the support arm (12) is rotatably connected with a rotating arm (13), the rotating arm (13) and the support arm (12) are connected by an adjustment mechanism, the lower end of the rotating arm (13) is equipped with a hydraulic support mechanism, one side of the rotating arm (13) is fixed with a hydraulic limit mechanism, the lower end of the hydraulic limit mechanism passes through the hydraulic support mechanism, and the two rotating arms (13) on the same side are connected by a guide mechanism.

2. The multi-directional positioning railway track gantry hydraulic support device according to claim 1, characterized in that: The walking mechanism includes track wheels (10) fixedly hung at the four corners of the lower end of the gantry frame body (2). The lower end of the gantry frame body (2) is provided with a track (11), and the four track wheels (10) are installed on the track (11).

3. The multi-directional positioning railway track gantry hydraulic support device according to claim 1, characterized in that: The rotating device includes a servo motor (3) mounted on one side of the bearing block (17), and the output shaft end of the servo motor (3) is connected to one side of the forward and reverse screw (18).

4. The multi-directional positioning railway track gantry hydraulic support device according to claim 1, characterized in that: The adjustment mechanism includes a first hydraulic cylinder (4) rotatably connected to one side of the lower end of the support arm (12), and the piston rod end of the first hydraulic cylinder (4) is rotatably connected to one side of the rotating arm (13).

5. The multi-directional positioning railway track gantry hydraulic support device according to claim 1, characterized in that: The hydraulic support mechanism includes a third hydraulic cylinder (9) installed at the lower end of the rotating arm (13), and a pad (6) is rotatably connected to the end of the piston rod of the third hydraulic cylinder (9).

6. The multi-directional positioning railway track gantry hydraulic support device according to claim 5, characterized in that: The hydraulic limiting mechanism includes a mounting plate (8) fixed on one side of the rotating arm (13). A second hydraulic cylinder (5) is fixed on the mounting plate (8). A connector (19) is fixed to the end of the piston rod of the second hydraulic cylinder (5). A reinforcing rod (14) is threaded onto the lower end of the connector (19). An installation port is provided on the pad (6). The lower end of the reinforcing rod (14) passes through the installation port and extends to the lower end of the connector (19). The lower end of the reinforcing rod (14) is tapered.

7. The multi-directional positioning rail gantry hydraulic support apparatus of claim 1, wherein: The guiding mechanism includes a guide rod (7) fixed to one side of one of the rotating arms (13) on the same side, one end of the guide rod (7) passing through the other rotating arm (13) on the same side and extending to its side.

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