Suspension type single-track movable core turnout tip-over and hiding mechanism

Abstract

The present application relates to a kind of effectively eliminate the structure of the 5mm step defect existing after movable core turnout of suspension single-track closely adheres to the inner wall of turnout beam tip, ensure the smooth of passing car suspension single-track movable core turnout turnover tip mechanism, external force push rod in drive mechanism begins to push push crank shaft assembly rotation, force is transmitted to space connecting rod, drive slider assembly in right-angle crank rotation, through slider assembly in primary connecting rod, slider and secondary connecting rod, rotary torque is converted into displacement thrust, to drive the movement of driven connecting rod in swing arm mechanism, driven connecting rod moves in the process by avoiding angle slot connecting rod in the process of return dead point, by intermediate stable connecting rod increase the degree of freedom of driven connecting rod, again drive the rotation of turnover swing arm in swing arm mechanism, wherein turnover swing arm in swing arm mechanism is hinged with straight curve turnover unit, finally realize the rotary turnover of straight curve turnover unit, complete switch of switch rail, realize turnover switch straight curve function surface and tip concealment error platform, ensure turnout line type and passing car smoothness.

Description

Technical Field

[0001] This invention relates to a mechanism for reversing and concealing the tip of a suspended monorail movable core turnout, which can effectively eliminate the 5mm step defect caused by structural reasons after the follower core rail tip of the turnout is closely attached to the inner wall of the turnout beam, and ensure smooth train passage. It belongs to the technical field of suspended monorail rail transit systems. Background Technology

[0002] With the rapid development of urban rail transit, elevated track operation systems are becoming increasingly common. Suspended monorail transit, as a new type of urban rail transit, is a novel rail transit mode that offers advantages in ecology, intelligence, safety, and economy compared to subways and light rail. This system saves land requirements, and because its vehicle bogies run within the track beam, it avoids the impact of rain and snow on vehicle operation, improving operational safety and applicability. In particular, the completion of China's first elevated suspended monorail operation demonstration line in 2022 has given a strong boost to the suspended monorail transit system. This system can be used for medium- and low-capacity transit lines, serving as the terminal access point for high-capacity transit modes such as subways and light rail, and as a new carrier and platform for urban stations and urban-rural connections. However, currently, a 5mm step exists in the movable core turnout of the suspended monorail due to structural reasons after the moving core rail tip is tightly fitted to the inner wall of the turnout beam. The technical problem of this 5mm step is currently not addressed in any design or application of suspended monorail movable core turnouts, both domestically and internationally.

[0003] Therefore, new technologies and innovative mechanisms are needed to achieve the invention of concealed tip, ensuring that suspended monorail vehicles can pass through the suspended monorail movable core turnout efficiently, at high speed, and smoothly. Summary of the Invention

[0004] Design objective: To achieve concealment of the core rail tip using new technologies and innovative mechanisms, specifically, to design a mechanical mechanism that can effectively eliminate the 5mm step defect caused by structural reasons when the core rail tip of a suspended monorail movable core turnout is in close contact with the inner wall of the turnout beam, thus ensuring the efficient, high-speed, and stable passage of suspended monorail vehicles.

[0005] Design Scheme: To achieve the above design objectives, the technical problem to be solved by this invention is to address the issue that structural steps exist between the movable core turnout and the inner wall of the turnout beam after the movable core rail is positioned by turning, affecting the stability of train passage. This invention provides a mechanism that achieves switching between straight and curved functional surfaces through a flipping motion and can conceal the tip. This design meets the requirements of the overall turnout alignment and increased train passage speed for suspended monorail vehicles. Furthermore, the mechanism features a compact spatial structure, one-machine linkage, interlocking, and high safety and reliability.

[0006] In terms of structural design: the suspended monorail movable core turnout tilting and concealing mechanism is used for the straight-curve switching operation of the guide surface and stabilizing surface of the suspended monorail movable core turnout, and to realize the function of concealing the tip and hiding the joint. The mechanism mainly consists of a straight-curve tilting unit, a drive mechanism, a swing arm assembly, an anti-rotation interlock assembly, a slider assembly, and a mechanism support component. Among them, the straight-curve tilting unit is the actuator of the mechanism, and the mechanism support component provides support for the drive assembly and other mechanism components. The drive assembly, swing arm assembly, anti-rotation locking assembly, and slider assembly are used to achieve a smooth tilting function.

[0007] To ensure the tip-twisting process is a sequential, linked action, the mechanism requires high precision and reliability. The structure and main components are as follows:

[0008] 1. Overall Layout: The overall layout consists of a combination of a tilting linkage mechanism and straight / curved tilting units on both sides. The external dimensions of the straight / curved tilting units are designed in accordance with the turnout alignment to ensure that the straight and curved surfaces on both sides conform to the turnout alignment. A drive assembly is then designed to drive the crank-slider-connecting rod mechanism to smoothly tilt the units, ensuring the turnout alignment at the joints, avoiding platform formation, and achieving the tilting switching function. See [link / details]. Figure 1 and 2 .

[0009] 2. Straight-Curved Tilting Unit: The straight-curved tilting unit is a hollow box-shaped structure made of steel plate, serving to guide and stabilize the vehicle, and can withstand the impact loads brought by the vehicle during operation. Each tilting unit has two functional surfaces, one straight and one curved. Tilting allows switching between straight and curved surfaces. An anti-rotation pin is installed at the drive end, and a locking pin hole is located away from the drive end. The movable rail is used for locking when it reaches its designated position, adapting to actual needs. (See details...) Figure 4 .

[0010] 3. The straight-curved flipping unit consists of two guiding flipping units and a stable flipping unit, see... Figure 4 .

[0011] 4. Drive Mechanism: The drive mechanism is mainly the power input component, realizing power output through the rotation of the crankshaft assembly. It mainly includes an electric pushrod, crankshaft assembly, slewing bearing, spatial connecting rod, mounting bracket, and pushrod bracket. See [link to details]. Figure 5 .

[0012] 5. Slider Assembly: The slider assembly is a crucial component for transmitting and converting driving torque. Considering the magnitude of the transmitted torque and the dimensions of the installation space, it is designed as a crank-connecting rod sliding structure, with one set on each of the left and right sides to match the tilting unit. It mainly consists of a right-angle crank, crank mounting bracket, first-stage connecting rod, slider, second-stage connecting rod, and slide rail. Its core function is to transmit and convert the driving rotation torque to the swing arm assembly based on the internal structure of the turnout beam, achieving spatial transmission of driving torque. See [link to relevant documentation]. Figure 6 .

[0013] 6. Swing Arm Mechanism: The swing arm mechanism is the core mechanism of this invention. Through the effective combination of various connecting rods, it achieves the synchronous flipping function of the flipping components. The mechanism mainly consists of a driven link, a slotted link, an intermediate stabilizing link, a flipping swing arm, and a link fixing support, with one set on each side. The driven link functions to transmit force and connect the upper and lower flipping components. The slotted link avoids the dead point of the return stroke during the reciprocating motion driven by the secondary link. The intermediate stabilizing link solves the problem of insufficient constraint on the degree of freedom of the mechanism after setting the slotted link, leading to asynchronous flipping. Finally, the driving force causes the flipping components to rotate at a set angle. See [link to details]. Figure 7 .

[0014] 7. Anti-rotation interlock component: After the flipping component has rotated to its correct position, an anti-rotation mechanism needs to be set to improve stability, as shown in the figure above. Figure 7 As shown, semi-circular slots are designed at two locations where the flipping mechanism is in place. The anti-rotation pins of the flipping component fall into the slots to achieve the purpose of preventing rotation, while also ensuring that the two states are mutually locked.

[0015] Technical Solution 1: A suspended monorail movable core turnout tilting and concealing mechanism. This mechanism is used for switching between straight and curved sections on the guide and stabilizing surfaces of the suspended monorail movable core turnout, and for concealing the tip and hiding the joint. It comprises a straight / curved tilting unit, a drive mechanism, a slider assembly, a swing arm assembly, an anti-rotation interlock assembly, and a support component. The support component provides support for the drive mechanism, slider assembly, and swing arm assembly. The drive mechanism drives the slider assembly, which in turn drives the swing arm assembly. The swing arm assembly then smoothly tilts and switches the straight and curved sections in the tilting unit, ensuring that the tip of the movable core turnout is flush with the inner wall of the turnout beam without any steps. After the tilting and switching is completed, semi-circular slots are designed at two points where the tilting is complete. The anti-rotation interlock assembly prevents rotation and simultaneously locks the two states together.

[0016] Technical Solution 2: A working method for a suspended monorail movable core turnout tilting and concealing tip mechanism, characterized in that: an external force push rod in the drive mechanism initially drives the crankshaft assembly to rotate, transmitting force to the spatial connecting rod, which in turn drives the right-angle crank in the slider assembly to rotate. Through the primary connecting rod, slider, and secondary connecting rod in the slider assembly, the rotational torque is converted into displacement thrust, thereby driving the driven connecting rod in the swing arm mechanism to move. During the movement of the driven connecting rod, the included-angle slotted connecting rod avoids the return dead point during the movement, and the intermediate stabilizing connecting rod increases the degree of freedom of the driven connecting rod, which then drives the tilting swing arm in the swing arm mechanism to rotate. The tilting swing arm in the swing arm mechanism is hinged to the straight-curved tilting unit, ultimately realizing the rotation and tilting of the straight-curved tilting unit, thus completing the switch of the point rail.

[0017] Compared with the prior art, this invention has the following advantages: First, the suspended monorail movable core turnout tilting and concealing tip mechanism is the first to adopt the tilting mechanism concealing tip design concept, realizing the switching between straight and curved functional surfaces while concealing the tip and misalignment, ensuring the turnout alignment and smooth train passage; Second, it adopts a multi-unit transmission design to improve transmission efficiency, reduce operational failure points, and ensure the mechanism can operate efficiently and smoothly; Third, it innovatively designs the locking pin hole of the tilting unit, utilizing the self-weight generated by the turnout movable core falling after reaching its position to achieve active locking of the tilting unit after tilting; Fifth, the mechanism is equipped with an angled slotted connecting rod and an intermediate stabilizing connecting rod to solve the problem of dead points during return stroke and insufficient constraint of the mechanism's degree of freedom during operation; Sixth, this mechanism can be adapted to various line requirements by adjusting the straight and curved shape of the tilting unit, possessing practicality and scalability, and can be developed into a series of products. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the implementation of the suspended monorail movable core turnout tilting and concealing mechanism.

[0019] Figure 2 yes Figure 1 A schematic diagram illustrating the principle.

[0020] Figure 3 3D schematic diagram of the straight-curved flip unit.

[0021] Figure 4 yes Figure 3 Front and top view diagrams.

[0022] Figure 5 This is a schematic diagram of the drive mechanism.

[0023] Figure 6 This is a schematic diagram of the slider component.

[0024] Figure 7 This is a schematic diagram of a swing arm mechanism.

[0025] Figure 8 This is a schematic diagram of the principle of the suspended monorail movable core turnout tilting and concealing mechanism. Implementation

[0026] Example 1: Refer to Appendix Figure 1-7A mechanism for reversing and concealing the tip of a suspended monorail movable core turnout is disclosed. This mechanism is used for switching between straight and curved sections on the guide and stabilizing surfaces of the suspended monorail movable core turnout, and for concealing the tip and hiding the joint. It comprises a straight / curved reversing unit 1, a drive mechanism 2, a slider assembly 3, a swing arm assembly 4, an anti-rotation interlock assembly 5, and a support component. The support component provides support for the drive mechanism 2, slider assembly 3, and swing arm assembly 4. The drive mechanism 2 drives the slider assembly 3, which in turn drives the swing arm assembly 4. The swing arm assembly 4 then smoothly reverses the straight and curved sections in the straight / curved reversing unit 1, ensuring that the tip of the movable core turnout is tightly fitted against the inner wall of the turnout beam without any steps. When the reversing switch is in place, semi-circular slots are designed at two points where the turnout is in position. The anti-rotation interlock assembly prevents rotation and simultaneously locks the two states together.

[0027] The straight-curved flipping unit consists of two guide flipping units 11 and two stable flipping units 12. Each guide flipping unit 11 has two functional surfaces on its left and right sides, one of which is a straight surface 16 and the other is a curved surface 17. The switching between straight and curved surfaces is achieved by flipping. An anti-rotation interlocking component 5 is set at the drive end, and a locking pin hole 14 is set at a location away from the drive end. The movable rail is used to lock the position when it falls to the desired position.

[0028] One end of the guide flipping unit 11 and the stable flipping unit 12 is provided with a rotating pin 13 and an anti-rotation pin 14, and the guide flipping unit 11 and the stable flipping unit 12 are provided with a rotating pin 13 and a locking pin hole 15.

[0029] The straight-curved flipping unit 1 is a hollow box-shaped structural component made of steel plate.

[0030] The drive mechanism 2 includes an electric push rod 21, a crankshaft assembly 22, a rotary support 23, a spatial connecting rod 24, a mounting bracket 25, and a push rod support 26. One end of the electric push rod 21 is hinged to the push rod support 26, and the other end of the electric push rod 21 is hinged to one end of the crankshaft assembly 22. The other end of the crankshaft assembly 22 and one end of the spatial connecting rod 24 are hinged to the rotary support 23. The rotary support 23 is connected to the mounting bracket 25, and the other end of the spatial connecting rod 24 is hinged to the other end of the right-angle crank 31 in the slider assembly 3.

[0031] The slider assembly 3 includes a right-angle crank 31, a crank mounting support 32, a primary connecting rod 33, a slider 34, a secondary connecting rod 35, and a slide rail 36. One end of the right-angle crank 31 and one end of the connecting rod 37 are hinged to the crank mounting support 32, the other end of the connecting rod 37 is hinged to one end of the primary connecting rod 33, the other end of the primary connecting rod 33 and one end of the secondary connecting rod 35 are connected to the slider 34, the slider 34 is located in the slide rail 36, and the other end of the secondary connecting rod 35 is connected to the fixed support driven connecting rod 41 in the swing arm mechanism.

[0032] The swing arm mechanism includes a driven link 41, a slotted link 42, an intermediate stabilizing link 43, a tilting swing arm 44, and a link fixing support 45. One end of the intermediate stabilizing link 43 and one end of the slotted link 42 are hinged to the link fixing support 45, and the other end of the intermediate stabilizing link 43 is hinged to the body of the driven link 41. The slot in the slotted link 42 is fitted onto the pin on the body of the intermediate stabilizing link 43. The two ends of the driven link 41 are respectively hinged to one end of the tilting swing arm 44. The other end of the tilting swing arm 44 is hinged to the guide tilting unit 11 and the stabilizing tilting unit 12 in the straight-curved tilting unit 1. The pin of the tilting swing arm 44 matches the semi-circular slot in the anti-rotation interlock assembly 5.

[0033] The anti-rotation interlock component 5 is designed with semi-circular slots at two locations. When the guide flipping unit 11 rotates to its position, the anti-rotation pin falls into the slot.

[0034] Example 2: Refer to Appendix Figure 8 A working method for a suspended monorail movable core turnout tilting and concealing mechanism is disclosed. This mechanism is a newly designed tilting mechanism used for switching between straight and curved sections on the guide surface and stability surface of a suspended monorail movable core turnout, and for concealing the tip. The mechanism mainly consists of two straight / curved tilting units on both sides and mechanical components. These units are supported and mounted on the turnout beam and are electrically driven. Through the mechanism's transmission, the tilting units are rotated to a designated position, tangent to the movable rail interface, eliminating misalignment and thus completing the change of train route.

[0035] The tilting mechanism of the suspended monorail movable core turnout utilizes a spatial crank-slider mechanism. The drive system employs an external push rod, which first rotates the crankshaft assembly, transmitting force to the spatial connecting rod, which in turn rotates the right-angle crank. Through components in the crank-slider mechanism, this rotates the driven connecting rod, ultimately driving the tilting arm to achieve the fixed-point rotation of the upper and lower tilting units. The included-angle slotted connecting rod prevents the driven connecting rod from reaching its return dead point during movement, while the intermediate stabilizing connecting rod increases the degree of freedom of the driven connecting rod. After rotation to the correct position, the movable core of the turnout descends, actively locking itself in place using the weight of the movable rail through locking pin holes arranged in the tilting unit.

[0036] The external force push rod in drive mechanism 2 starts to push the crankshaft assembly to rotate, transmitting force to the spatial connecting rod, which in turn drives the right-angle crank in slider assembly 3 to rotate. Through the first-stage connecting rod, slider, and second-stage connecting rod in slider assembly 3, the rotational torque is converted into displacement thrust, thereby driving the driven connecting rod in swing arm mechanism 4 to move. During the movement of the driven connecting rod, the included-angle slotted connecting rod avoids the return dead point during the motion, and the intermediate stabilizing connecting rod increases the degree of freedom of the driven connecting rod, which then drives the rotating swing arm in swing arm mechanism 4 to rotate. The rotating swing arm in swing arm mechanism 4 is hinged to the straight-curved rotating unit 1, ultimately realizing the rotation and rotation of the straight-curved rotating unit 1. This completes the switch of the point rail.

[0037] Appendix Figure 1 and 2 This is an embodiment of the mechanism of the present invention for switching the point rail of a suspended monorail movable core turnout to achieve concealed misalignment. It consists of a straight-curved flipping unit 1, a drive mechanism 2, a slider assembly 3, a swing arm mechanism 4, and an anti-rotation interlock assembly 5.

[0038] Appendix Figure 1 and 2 As can be seen, the straight-curved flipping unit 1 serves as the component in the mechanism for switching the tip rail and concealing misalignment. It also features a locking pin hole for locking the movable rail as it descends. The drive mechanism 2 uses an external force push rod as its power source; this push rod can be electric or hydraulic. The push rod is then connected to a crankshaft assembly, which acts as the drive element. The slider assembly 3 and the swing arm mechanism 4 are the actuators that enable the straight-curved flipping unit 1 to perform its flipping motion. The anti-rotation interlock assembly 5 is the component that prevents rotation and positions the equipment when it is fully rotated.

[0039] It should be understood that although the above embodiments provide a relatively detailed textual description of the design concept of the present invention, these textual descriptions are merely simple textual descriptions of the design concept of the present invention, and not limitations on the design concept of the present invention. Any combination, addition, or modification that does not exceed the design concept of the present invention falls within the protection scope of the present invention.

Claims

1. A suspended monorail movable core turnout tilting and tip-concealing mechanism, characterized in that: The suspended monorail movable core turnout flipping and tip concealing mechanism is used for the straight-curve switching operation of the guide surface and stabilizing surface of the suspended monorail movable core turnout and to realize the function of concealing the tip and hiding the joint. It consists of a straight-curve flipping unit (1), a drive mechanism (2), a slider assembly (3), a swing arm assembly (4), an anti-rotation interlock assembly (5), and a mechanism support. The mechanism support provides load for the drive mechanism (2), the slider assembly (3), and the swing arm assembly (4). The drive mechanism (2) drives the slider assembly (3), the slider assembly (3) drives the swing arm assembly (4), and the swing arm assembly (4) drives the smooth flipping and switching of the straight line and curve in the straight-curve flipping unit (1), so that the tip of the suspended monorail movable core turnout is in close contact with the inner wall of the turnout beam without any steps. The straight-curve flipping unit consists of two guide flipping units (11) and two stabilizing units. The unit is composed of a flipping unit (12). Each guide flipping unit (11) has two functional surfaces on its left and right sides, one of which is a straight surface (16) and the other is a curved surface (17). The flipping unit achieves the switching between straight and curved surfaces. An anti-rotation interlocking component (5) is set at the drive end, and a locking pin hole (15) is set at the location away from the drive end. The movable rail is used to lock the unit when it is in place. One end of the guide flipping unit (11) and the stable flipping unit (12) is provided with a rotating pin (13) and an anti-rotation pin (14), and the other end of the guide flipping unit (11) and the stable flipping unit (12) is provided with a rotating pin (13) and a locking pin hole (15). The anti-rotation interlocking component (5) is designed with semi-circular slots at two locations. When the guide flipping unit (11) rotates to the position, the anti-rotation pin falls into the slot and achieves anti-rotation and mutual locking through the anti-rotation interlocking component.

2. The suspended monorail movable core turnout tilting and tip concealing mechanism according to claim 1, characterized in that: The straight-curved flipping unit (1) is a hollow box-shaped structural component made of steel plate.

3. The suspended monorail movable core turnout tilting and tip-concealing mechanism according to claim 1, characterized in that: The swing arm assembly includes a driven link (41), a slotted link (42), a middle stabilizing link (43), a tilting swing arm (44), and a link fixing support (45). One end of the middle stabilizing link (43) and one end of the slotted link (42) are hinged to the link fixing support (45), and the other end of the middle stabilizing link (43) is hinged to the body of the driven link (41). The slotted part of the slotted link (42) is fitted onto the pin on the body of the middle stabilizing link (43). Both ends of the driven link (41) are hinged to one end of the tilting swing arm (44), and the other end of the tilting swing arm (44) is hinged to the guide tilting unit (11) and the stabilizing tilting unit (12) in the straight-curved tilting unit (1). The pin of the tilting swing arm (44) matches the semi-circular slot in the anti-rotation interlock assembly (5).

4. The suspended monorail movable core turnout tilting and tip-concealing mechanism according to claim 3, characterized in that: The slider assembly (3) includes a right-angle crank (31), a crank mounting support (32), a primary connecting rod (33), a slider (34), a secondary connecting rod (35), and a slide rail (36); one end of the right-angle crank (31) and one end of the connecting rod (37) are hinged to the crank mounting support (32), the other end of the connecting rod (37) is hinged to one end of the primary connecting rod (33), the other end of the primary connecting rod (33) and one end of the secondary connecting rod (35) are connected to the slider (34), the slider (34) is located in the slide rail (36), and the other end of the secondary connecting rod (35) is connected to the driven connecting rod (41) in the swing arm assembly.

5. The suspended monorail movable core turnout tilting and tip-concealing mechanism according to claim 4, characterized in that: The drive mechanism (2) includes an electric push rod (21), a crankshaft assembly (22), a rotary support (23), a spatial connecting rod (24), a mounting bracket (25), and a push rod support (26). One end of the electric push rod (21) is hinged to the push rod support (26), and the other end of the electric push rod (21) is hinged to one end of the crankshaft assembly (22). The other end of the crankshaft assembly (22) and one end of the spatial connecting rod (24) are hinged to the rotary support (23). The rotary support (23) is connected to the mounting bracket (25), and the other end of the spatial connecting rod (24) is hinged to the other end of the right-angle crank (31) in the slider assembly (3).

6. A method for operating the suspended monorail movable core turnout tilting and concealing mechanism as described in claim 5, characterized in that: The external force push rod in the drive mechanism (2) starts to push the crankshaft assembly to rotate, and transmits the force to the spatial connecting rod, which drives the right-angle crank in the slider assembly (3) to rotate. Through the first-level connecting rod, slider and second-level connecting rod in the slider assembly (3), the rotational torque is converted into displacement thrust, thereby driving the driven connecting rod in the swing arm assembly (4) to move. During the movement of the driven connecting rod, the return dead point during the movement is avoided by the included-angle slotted connecting rod. The degree of freedom of the driven connecting rod is increased by the intermediate stabilizing connecting rod, and then the flipping swing arm in the swing arm assembly (4) is driven to rotate. The flipping swing arm in the swing arm assembly (4) is hinged to the straight-curved flipping unit (1), and finally the rotation and flipping of the straight-curved flipping unit (1) is realized, and the switch of the point rail is completed.

Images