Novel straddle type monorail three-opening line changing equipment

Abstract

The utility model relates to novel straddle type monorail three-section track changing equipment which can meet the requirement for efficient track changing of multi-turnout vehicles in a station yard and save space and comprises a bottom plate, a track and a locking device, the track is located on the bottom plate, a walking trolley is located on the track, and a plurality of turnout beams are located on the walking trolley. One end of the turnout beam is provided with a piled beam and a slewing device, the other end of the turnout beam is provided with a plurality of piled beams, a slewing crank arm mechanism is arranged at the bottom of the turnout beam, rollers on the slewing crank arm mechanism do linear motion in a fixed bottom plate and a guide groove in a track, and the slewing crank arm mechanism is driven by a driving device. The method has the advantages that the problem that the vehicle base space is limited is solved, and the requirement for small-space vehicle base route planning is met; signal receiving and safety feedback requirements are met, and the characteristics of linkage interlocking, flexible action, safety, reliability and the like are achieved; narrow space of a parking lot is fully utilized, the structure is compact, and functions are complete; and fourthly, the part design has good manufacturing manufacturability, and the manufacturing cost is favorably controlled.

Description

Technical Field

[0001] This utility model relates to a new type of straddle-type monorail three-way track changing equipment that can meet the high-efficiency track changing needs of multi-way vehicles in the station yard and save space. It belongs to the field of straddle-type monorail multi-way track changing equipment manufacturing. Background Technology

[0002] In current track-changing equipment, the turnout is mounted entirely on the foundation plate to achieve track switching. A support trolley supports the front and rear curved turnout beams located at the turnout rotation center, ensuring the turnout's stability and safety. The drive mechanism provides power and support to the straight turnout beam. Through the meshing of a drive gear and rack, the drive mechanism moves, dragging the straight turnout beam to rotate a predetermined angle, connecting it with the corresponding track beam to form the turnout. The locking device uses a pin-locking system; after the turnout rotates to its position, the locking pin inserts into the locking slot to lock the turnout, ensuring its fixation and stability. Its shortcomings include: requiring numerous track-changing devices, occupying a large space, and low efficiency. Summary of the Invention

[0003] Design objective: To overcome the shortcomings of the prior art, this design aims to create a new straddle-type monorail three-way switching device that can meet the efficient track switching needs of multi-way vehicles in the station while saving space. This device ensures that vehicles can safely and smoothly move from one track to the other three tracks, reduces the number of track switching devices in the station, and saves station space.

[0004] Design Scheme: With the rapid development of urban rail transit, the frequency of train departures has increased to transport a large number of passengers, resulting in frequent train entry and exit from the depot. To ensure the safe, efficient, and rapid entry and exit of trains from and from the depot, and to save depot space, a new type of three-way switching equipment is needed. This equipment design meets the requirement of trains safely and smoothly moving from one track to three other tracks, reducing the number of switching devices in the depot and saving depot space. The main components of this invention include a turnout beam, a drive unit, a traveling trolley, a slewing device, a locking device, an inter-beam connection device, a base plate and track, and pier beams.

[0005] Alignment: To meet vehicle traffic requirements and minimize land occupation, this scheme uses four beam segments arranged in an arithmetic progression of angles, with a curve fitting radius of approximately R120m (see...). Figure 3 ).

[0006] Structural components: The turnout beam is the main load-bearing component for vehicle passage. The beam adopts a box-shaped structure, with multiple longitudinal stiffeners and partitions inside for support. The sides of the beam are fitted with the running plates for vehicle guide wheels and stabilizing wheels, and the top surface is the running surface for the vehicle's running wheels. Four equal-length welded steel box-shaped beams serve as the main structure for supporting the vehicles (see...). Figure 4 The length of the turnout beam, as the main structural component, determines the overall size of the switching equipment. Existing technology uses five 6-meter turnout beams, while this design uses four 5.5-meter turnout beams, reducing the length by 26%. (See...) Figure 5 .

[0007] Mechanical Components: The drive unit primarily handles the power input, motion trajectory control, and driving force transmission for the turnout beam to move from one position to another. A beam-mounted drive scheme is adopted, where a power source is positioned at the bottom of the turnout beam to drive the slewing boom mechanism. Based on the calculated degrees of freedom, four sets of slewing boom mechanisms are required, with two positioned under turnout beam II, one under turnout beam III, and one under turnout beam IV. (See details...) Figure 2 .

[0008] Technical solution: A novel straddle-type monorail three-section switching device includes a base plate, a track, and a locking device. The track is located on the base plate, the traveling trolley is located on the track, and multiple sections of turnout beams are located on the traveling trolley. One end of the turnout beam has a stack beam and a slewing device, and the other end of the turnout beam has multiple stack beams. The bottom of the turnout beam has a slewing arm mechanism. The rollers on the slewing arm mechanism move linearly in the guide grooves on the fixed base plate and track. The slewing arm mechanism is driven by a drive device.

[0009] Compared with the prior art, this utility model has the following advantages: First, it solves the problem of limited space in vehicle depots and meets the needs of route planning for small-space vehicle depots; second, it has the requirements for signal reception and safety feedback, and features interlocking, flexible operation, and safety and reliability; third, it makes full use of the small space of the depot, with a compact structure and complete functions; and fourth, the component design has good manufacturability, which helps to control manufacturing costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of a new type of straddle-type monorail three-way switching equipment.

[0011] Figure 2 This is a schematic diagram of a multi-section turnout beam drive structure.

[0012] Figure 3 yes Figure 1 A line diagram.

[0013] Figure 4 This is a schematic diagram of the turnout beam structure.

[0014] Figure 5 This is a schematic diagram comparing the line type of this utility model with the line type of existing technology.

[0015] Figure 6 This is a schematic diagram of the drive unit.

[0016] Figure 7 This is a schematic diagram of a slewing arm mechanism.

[0017] Figure 8 This is a schematic diagram of the roller assembly.

[0018] Figure 9 This is a schematic diagram illustrating the working principle of a single-rail three-way switching device. Detailed Implementation

[0019] Example 1: Refer to Appendix Figure 1-9 A novel straddle-type monorail three-way switching device includes a base plate 4, a track 9, and a locking device 6. The track 9 is located on the base plate 4, the traveling trolley 3 is located on the track 9, and the multi-section turnout beam 8 is located on the traveling trolley 3. One end of the turnout beam 8 has a stack beam 1 and a slewing device 2, and the other end of the turnout beam 8 has multiple stack beams 1. The bottom of the turnout beam 8 has a slewing arm mechanism, and the rollers on the slewing arm mechanism move linearly in the guide grooves on the fixed base plate 4 and the track. The slewing arm mechanism is driven by a drive device 10.

[0020] The multiple turnout beams 8 are connected by an inter-beam connection device 5, which is existing technology and will not be described here.

[0021] The multi-section turnout beams 8 are turnout beam I 81, turnout beam II 82, turnout beam III 83 and turnout beam IV 84. Turnout beam II 82 has a set of slewing arm mechanism, and turnout beam III 83 and turnout beam IV 8 each have a set of slewing arm mechanism.

[0022] The drive unit 10 consists of a motor reducer 101 (with handwheel and brake, see below) Figure 6 It consists of a manual device 102, a support 103, and a coupling 104.

[0023] Articulated boom slewing mechanism (see) Figure 7 The slewing mechanism of the boom arm 107 is driven to rotate by a worm gear reducer 105, causing the roller 108 to roll within a pre-arranged guide groove on the base plate. All four mechanisms work together to rotate the turnout beam. The encoder 106 is mounted on the worm gear reducer shaft. The boom arm 107 requires precision CNC machining to ensure coaxiality.

[0024] The roller assembly consists of roller 109, bearing 110, and roller shaft 111, see... Figure 8 .

[0025] Working principle of a three-way monorail switching device: In a straddle-type three-way monorail switching device, the turnout beam adopts a welded structure, with a beam length of 5.5 meters, a total turnout length of approximately 22 meters, and a turnout switching range of 2.5 meters for single-way and 5 meters for three-way. A total of 5 trolleys are used. The locking device uses an electric push rod to force the rotating handle with rollers into place. The turnout rotation drive uses a structure where a motor reducer installed under the beam drives the crank arm to rotate through a worm gear reduction. High precision and high reliability are required for the operation, and the turnout switching and locking device are interlocked. Locking can only be performed after confirming that the turnout is in position. After the series of actions are completed, a signal is sent to inform the vehicle that the turnout has been switched and can proceed. See [link to relevant documentation]. Figure 9 .

[0026] When the turnout receives the action command, the locking device of the traveling trolley 3 first unlocks, and then the motor reducer of the beam connecting device 5 rotates, transmitting the motion to the slewing arm through the coupling; the rollers on the slewing arm move linearly in the guide grooves on the fixed base plate 4 and the track 9; the drive device 1 (three drive devices) operates simultaneously, driving the four turnout beams of the stack beam 1 to rotate around the slewing device 2, and after changing to another turnout position, the locking device of the traveling trolley 3 locks, and the proximity switch on the traveling trolley 3 provides feedback on the turnout action completion signal, allowing the vehicle to pass.

[0027] Implementation measures: During the installation of straddle-type monorail three-way switching equipment, the following measures should be taken to ensure the installation and commissioning work is completed.

[0028] 1) While using conventional testing instruments, design dedicated testing fixtures to facilitate self-inspection and specialized inspection needs during the installation process;

[0029] 2) After the components are debugged, the relevant components are fitted with positioning pins to ensure proper positioning and locking of the assembled parts;

[0030] 3) After all bolts and components are installed and adjusted, all bolts with holes should be tightened with wire to prevent loosening, and Loctite adhesive should be used to prevent loosening.

[0031] 4) After locking, installation and adjustment, all checks must be carried out. Only after passing the checks can the device be put into use, and regular inspections and maintenance should be performed.

[0032] It should be understood that although the above embodiments provide a relatively detailed textual description of the design concept of this utility model, these textual descriptions are merely simple textual descriptions of the design concept of this utility model, and not limitations on the design concept of this utility model. Any combination, addition, or modification that does not exceed the design concept of this utility model shall fall within the protection scope of this utility model.

Claims

1. A novel straddle-type monorail three-way switching device, comprising a base plate (4), a track (9), and a locking device (6), characterized in that: The track (9) is located on the base plate (4), the traveling trolley (3) is located on the track (9), and the multi-section turnout beam (8) is located on the traveling trolley (3). One end of the turnout beam (8) has a stack beam (1) and a slewing device (2), and the other end of the turnout beam (8) has multiple stack beams (1). The bottom of the turnout beam (8) has a slewing arm mechanism. The rollers on the slewing arm mechanism move linearly in the guide groove on the fixed base plate (4) and the track. The slewing arm mechanism is driven by the drive device (10).

2. The novel straddle-type monorail three-way switching device according to claim 1, characterized in that: The multiple turnout beams (8) are connected by an inter-beam connection device (5).

3. The novel straddle-type monorail three-way switching device according to claim 1, characterized in that: The multi-section turnout beams (8) are turnout beam I (81), turnout beam II (82), turnout beam III (83) and turnout beam IV (84). Turnout beam II (82) has a set of slewing arm mechanism, and turnout beam III (83) and turnout beam IV (84) each have a set of slewing arm mechanism.

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