Hinge type turnover rail changing device in tunnel
By designing a hinged flip rail transformer in the tunnel in a small diameter and large slope shield tunnel, the track rotation is achieved using rotating plates and adjustment components, the problem of difficulty in changing tracks of traction locomotives is solved, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202323478774.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-20
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-20
AI Technical Summary
In small diameter and large slope shield tunnels, due to space limitations, existing pull-out and rotary rail-changing structures are difficult to apply, making it difficult for traction locomotives to achieve rail-changing operations, which poses safety hazards.
A hinged flip rail transformer device in the tunnel is designed, including two rail transformers, which use rotating plates and adjustment components to achieve horizontal and vertical rotation of the rails, ensure the alignment of the rails through limiting support and angle sensors, and ensure traction. The locomotive changed tracks smoothly.
The device covers a small area and can realize the rail change of the traction locomotive in a small diameter and large slope shield tunnel, improve construction efficiency and safety, and solve the problem that the traction locomotive is difficult to change the track.
Smart Images
Figure CN222226948U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel construction, in particular to a hinged turning track changing device in a tunnel. Background Art
[0002] With the development of shield tunneling technology, the number of shield tunnels with small diameter and large slope is increasing. For example, the slope of tunnels for water storage and energy storage, oil and gas pipelines, and integrated pipe corridors can reach more than 70%, and the exchange and transportation of materials inside and outside the tunnel during tunnel excavation construction has become a major problem. At present, for shield tunnels with a slope of more than 50%, a rubber-wheeled clamped rail traction locomotive is usually used. In addition to the conventional steel wheels running on the steel rails on both sides, there is also a middle rubber wheel driving on the middle rail. The running track of the traction locomotive is a "mountain"-shaped three-track structure. In order to improve the efficiency of shield tunnel construction, multiple groups of traction locomotives are generally configured in the shield tunnel, and it is inevitable that the phenomenon of vehicles passing each other in the shield tunnel will occur. However, since the running track in the tunnel also adds an intermediate track, when changing tracks, it is impossible to achieve track change by separating and sticking the point rail and the basic rail like the double-track structure. Interference is easy to occur between the tracks, causing safety accidents.
[0003] In the prior art, pull-out and rotary track changing structures are usually used to achieve track changing. However, both of them require a large space. Since the space in a small-diameter shield tunnel is small, pull-out and rotary track changing structures are difficult to apply to small-diameter shield tunnels. Therefore, there is a problem that it is difficult for a traction locomotive to achieve track changing under multi-track conditions in a small-diameter and large-slope shield tunnel. Summary of the invention
[0004] The utility model aims to solve the problem in the prior art that it is difficult for a traction locomotive to change tracks under multi-track conditions in a small-diameter and large-slope shield tunnel. The utility model provides a hinged-type flip track changing device in a tunnel. The device occupies a small area, can ensure that the traction locomotive can smoothly change tracks, complete the passing of vehicles under multi-track conditions in a small-diameter and large-slope shield tunnel, and can improve the efficiency and safety of shield tunnel construction.
[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is: a hinged flip track changing device in a tunnel, comprising two relatively arranged track changing mechanisms, the track changing mechanism comprising a rotating plate and a support plate, a track changing track is arranged on the top of the rotating plate, the track changing track comprises two side rails fixedly arranged on the top of the rotating plate, an intermediate rail is arranged between the two side rails, a plurality of sleepers are arranged at intervals below the intermediate rail, the sleepers are arranged on the top of the rotating plate, and when the rotating plate is in a horizontal state, the track changing track on the rotating plate can ensure that the traction locomotive can smoothly realize the track changing action and complete the passing of vehicles.
[0006] The bottom of one end of the rotating plate is rotatably connected to the supporting plate. The track changing mechanism also includes an adjusting component for driving the rotating plate to rotate. The adjusting component is connected to the rotating plate. The rotating plate can be driven to rotate by the adjusting component so that the rotating plate is in a horizontal state or a vertical state.
[0007] A limit support for limiting the position of the rotating plate is arranged between the two track-changing mechanisms. An angle sensor and a feedback device are arranged on the limit support. The angle sensor is electrically connected to the feedback device. The limit support limits the position of the rotating plate to ensure that the rotating plate is in a horizontal state when the traction locomotive changes track.
[0008] Furthermore, an ear plate is arranged at the bottom of one end of the rotating plate, and a hinged seat is arranged at the bottom of the other end.
[0009] Furthermore, the two track-changing mechanisms each have two support plates, and two hinge plates corresponding to the ear plates are spaced apart on the support plates. A pin is fixed between the two hinge plates, and the ear plate is sleeved on the pin and rotatably connected to the pin. The ear plate cooperates with the pin to facilitate the rotation of the rotating plate.
[0010] Furthermore, the adjustment assembly includes a hydraulic cylinder and a mounting plate located below the rotating plate. The rear end of the hydraulic cylinder is hinged to the mounting plate, and the piston rod end of the hydraulic cylinder is hinged to the hinge seat. The rotating plate can be driven to rotate upward or downward by the hydraulic cylinder.
[0011] Furthermore, the adjustment component includes a gantry and two electric hoists, two track changing mechanisms are arranged in the gantry, and the two electric hoists are movably arranged on the top of the gantry. The steel wire ropes of the two electric hoists are respectively connected to the rotating plates of the two track changing mechanisms. The electric hoists can drive the rotating plates to rotate upward or downward.
[0012] Through the above technical solution, the beneficial effects of the utility model are:
[0013] The utility model has a simple structure and occupies a small area. It is suitable for use in small-diameter and large-slope shield tunnels. It can ensure that the traction locomotive can smoothly change tracks and complete the passing of vehicles under multi-track conditions in small-diameter and large-slope shield tunnels, which can effectively improve the efficiency and safety of shield tunnel construction.
[0014] The utility model can ensure that the traction locomotive can realize the track changing action and complete the train passing movement through two track changing mechanisms. When the traction locomotive changes the track and passes the train, the adjusting component of the track changing mechanism can drive the rotating plate to rotate, so that the rotating plates of the two track changing mechanisms are respectively in a vertical state and a horizontal state.
[0015] The utility model limits the rotation plates of the two track-changing mechanisms by means of the limiting support parts, so as to ensure that the rotation plates are in a horizontal state when the traction locomotive changes tracks and passes other vehicles, so that the track-changing tracks on the rotation plates are aligned with the tracks in the shield tunnel, and the traction locomotive can smoothly realize the track-changing action. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of a hinged turning track switching device in a tunnel. Figure 1 ;
[0017] Figure 2 yes Figure 1 A schematic diagram of the enlarged structure at A in the middle;
[0018] Figure 3 This is a schematic diagram of the structure of a hinged turning track switching device in a tunnel. Figure 2 ;
[0019] Figure 4 This is a schematic diagram of the structure of a hinged turning track switching device in a tunnel. Figure 3 ;
[0020] Figure 5 This is a schematic diagram of the use status of the utility model. Figure 1 ;
[0021] Figure 6 This is a schematic diagram of the use status of the utility model. Figure 2 .
[0022] The numbers in the accompanying drawings are: 1 is a rotating plate, 101 is a side rail, 102 is a middle rail, 103 is a sleeper, 104 is an ear plate, 105 is a hinged seat, 2 is a support plate, 201 is a hinged plate, 202 is a pin shaft, 3 is a hydraulic cylinder, 4 is a mounting plate, 5 is a limit support, 6 is an angle sensor, 7 is a feedback device, 8 is a gantry, and 9 is an electric hoist. DETAILED DESCRIPTION
[0023] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:
[0024] Embodiment 1:
[0025] like Figure 1 to Figure 5As shown, a hinged flip track changing device in a tunnel comprises two track changing mechanisms arranged opposite to each other, the track changing mechanism comprises a rotating plate 1 and a supporting plate 2, a track changing track is arranged on the top of the rotating plate 1, the track changing track comprises two side rails 101 fixedly arranged on the top of the rotating plate 1, an intermediate rail 102 is arranged between the two side rails 101, a plurality of sleepers 103 are arranged at intervals below the intermediate rail 102, the number of sleepers 103 is 3, and the sleepers 103 are arranged on the top of the rotating plate 1. In this embodiment, the number of tracks on the top of the rotating plate 1 is 3. When the rotating plate 1 is in a horizontal state, the track on the top of the rotating plate 1 corresponds to the running track in the small diameter and large slope shield tunnel, so as to ensure that the traction locomotive can smoothly realize the track changing action when changing tracks and passing each other.
[0026] The bottom of one end of the rotating plate 1 is rotatably connected to the supporting plate 2. The track changing mechanism also includes an adjusting component for driving the rotating plate 1 to rotate. The adjusting component is connected to the rotating plate 1. The rotating plate 1 can be driven to rotate through the adjusting component so that the rotating plates 1 of the two track changing mechanisms are respectively in a horizontal state and a vertical state.
[0027] A limit support 5 for limiting the position of the rotating plate 1 is arranged between the two track-changing mechanisms. The limit support 5 ensures that the rotating plate 1 is in a horizontal state when it rotates downward to the lowest point. An angle sensor 6 and a feedback device 7 are arranged on the limit support 5. The angle sensor 6 is electrically connected to the feedback device 7. In this embodiment, the angle sensor 6 is used to detect whether the track-changing track on the top of the rotating plate 1 is flush with the running track in the shield tunnel when one of the rotating plates 1 is in a horizontal state. The feedback device 7 can adopt a PLC controller, and the angle sensor 6 can transmit the signal to the feedback device 7. The limit support 5 can be installed in a small-diameter and large-slope shield tunnel by welding or bolting. The limit support 5 guarantees three I-beams, and a fixing plate is fixedly installed at the bottom of the three I-beams.
[0028] An ear plate 104 is arranged at the bottom of one end of the rotating plate 1, and a hinge seat 105 is arranged at the bottom of the other end. In this embodiment, there are two ear plates 104 and two hinge seats 105, and the ear plates 104 and the hinge seats 105 are fixedly installed at the bottom of the rotating plate 1.
[0029] The two track-changing mechanisms each have two support plates 2, on which two hinge plates 201 corresponding to the ear plates 104 are arranged at intervals, a pin shaft 202 is fixedly arranged between the two hinge plates 201, and the ear plate 104 is sleeved on the pin shaft 202 and rotatably connected to the pin shaft 202.
[0030] The adjustment assembly includes a hydraulic cylinder 3 and a mounting plate 4 located below the rotating plate 1. The rear end of the hydraulic cylinder 3 is hinged to the mounting plate 4, and the end of the piston rod of the hydraulic cylinder 3 is hinged to the hinge seat 105. In this embodiment, the rotating plate 1 is driven to rotate by the piston rod of the hydraulic cylinder 3, and a cylinder or an electric push rod can also be used to drive the rotating plate 1 to rotate.
[0031] The working principle of the utility model is as follows: when the traction locomotive has a need to change tracks or pass each other, first, the hydraulic cylinder 3 of one of the track changing mechanisms drives the rotating plate 1 to rotate clockwise, and the rotating plate 1 is rotated to a horizontal state, so that the track changing track on the rotating plate 1 is flipped to a position flush with the running track in the small-diameter and large-slope shield tunnel, and the angle sensor 6 detects whether the track changing track is flush with the running track. If not, the angle sensor 6 transmits a signal to the feedback device 7, and the feedback device processes the signal transmitted by the angle sensor 6, and adjusts the position of the rotating plate 1 through the hydraulic cylinder 3. After the track changing track on the rotating plate 1 is completed, the hydraulic cylinder 3 of the other track changing mechanism drives its rotating plate 1 to rotate to a vertical state, or rotates to a position that does not affect the rotation of the other rotating plate 1. The hydraulic cylinders 3 of the two track changing mechanisms complete the retraction and extension actions at the same time, and then the traction locomotive can complete the track changing and passing action.
[0032] Embodiment 2:
[0033] like Figure 6 As shown, the similarities between Example 2 and Example 1 are not described in detail. The difference is that the adjustment assembly includes a gantry 8 and two electric hoists 9, two track change mechanisms are arranged in the gantry 8, and the two electric hoists 9 are movably arranged on the top of the gantry 8. The wire ropes of the two electric hoists 9 are respectively connected to the rotating plates 1 of the two track change mechanisms. The electric hoist 9 in this embodiment adopts a motion electric hoist so that the electric hoist 9 can do left and right lateral movement on the I-beam at the top of the gantry 8. When the traction locomotive has a need to change tracks and pass trains, one of the electric hoists 9 drives the rotating plate 1 to rotate counterclockwise through its wire rope, and the other electric hoist 9 drives the other rotating plate 1 to rotate counterclockwise through its wire rope, so that the rotating plate 1 of one of the track change mechanisms is in a horizontal state, and the rotating plate 1 of the other track change mechanism is in a vertical state. It should be noted that when the wire rope of the electric hoist 9 drives the rotating plate 1 to rotate, the electric hoist 9 synchronously moves to the right or to the left on the I-beam at the top of the gantry 8.
[0034] The embodiments described above are only preferred embodiments of the utility model and do not limit the scope of implementation of the utility model. Therefore, all equivalent changes or modifications made according to the technical solutions described in the patent scope of the utility model should be included in the scope of the patent application of the utility model.
Claims
1. A hinged turning track changing device in a tunnel, characterized in that: The invention comprises two track-changing mechanisms arranged opposite to each other, the track-changing mechanisms comprising a rotating plate (1) and a supporting plate (2), a track-changing track being arranged on the top of the rotating plate (1), the track-changing track comprising two side rails (101) fixedly arranged on the top of the rotating plate (1), a middle rail (102) being arranged between the two side rails (101), a plurality of sleepers (103) being arranged at intervals below the middle rail (102), and the sleepers (103) being arranged on the top of the rotating plate (1); The bottom of one end of the rotating plate (1) is rotatably connected to the support plate (2), and the track change mechanism further comprises an adjustment component for driving the rotating plate (1) to rotate, and the adjustment component is connected to the rotating plate (1); A position limiting support (5) for limiting the position of the rotating plate (1) is arranged between the two track changing mechanisms, an angle sensor (6) and a feedback device (7) are arranged on the position limiting support (5), and the angle sensor (6) is electrically connected to the feedback device (7).
2. The hinged turning track changing device in a tunnel according to claim 1, characterized in that: A lug plate (104) is arranged at the bottom of one end of the rotating plate (1), and a hinge seat (105) is arranged at the bottom of the other end.
3. The hinged turning track changing device in a tunnel according to claim 2, characterized in that: The number of support plates (2) of the two track change mechanisms is two, and two hinge plates (201) corresponding to the ear plates (104) are arranged on the support plates (2) at intervals, a pin shaft (202) is fixedly arranged between the two hinge plates (201), and the ear plate (104) is sleeved on the pin shaft (202) and is rotatably connected to the pin shaft (202).
4. The hinged turning track changing device in a tunnel according to claim 2, characterized in that: The adjustment assembly comprises a hydraulic cylinder (3) and a mounting plate (4) located below the rotating plate (1); the rear end of the hydraulic cylinder (3) is hinged to the mounting plate (4); and the end of the piston rod of the hydraulic cylinder (3) is hinged to the hinge seat (105).
5. The hinged turning track changing device in a tunnel according to claim 1, characterized in that: The adjustment assembly comprises a gantry (8) and two electric hoists (9), two track change mechanisms are arranged in the gantry (8), the two electric hoists (9) are movably arranged on the top of the gantry (8), and the steel wire ropes of the two electric hoists (9) are respectively connected to the rotating plates (1) of the two track change mechanisms.