Hump parking device travel switch

Abstract

The utility model discloses a travel switch of a hump parking device, which relates to the technical field of hump parking devices and comprises a first linkage plate, a magnet seat, a second linkage plate and a proximity switch. The first linkage plate is fixed to the side wall of an oil cylinder gland of the hump parking device, and the magnet base is fixed to the first linkage plate. The second linkage plate is fixed on the side wall of an oil cylinder piston rod connecting disc of the hump parking device, and the proximity switch is fixed on the second linkage plate; and the proximity switch is opposite to the magnet seat. According to the utility model, the maintenance rate is obviously reduced, and the reliability and stability of equipment are improved; the ungrouping operation capability of the hump grouping yard is improved, and the transportation benefit is further improved; and the double requirements of customers on the performance and the cost of the travel switch of the hump parking device are met.

Description

Technical Field

[0001] This utility model relates to the field of hump stop technology, specifically to a hump stop limit switch. Background Technology

[0002] Hump ​​yards are the core of railway marshalling yards, used for dismantling trains and reassembling them according to their destination. As a key piece of equipment in the hump shunting system, the accurate and reliable operation of the hump stop device is crucial to ensuring the safety and efficiency of shunting operations. Traditional hump stop device travel detection mostly uses mechanical limit switches, which suffer from low reliability and high maintenance costs. Therefore, developing a new, efficient, and reliable hump stop device travel switch is particularly important. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a travel switch for a hump stop device, which achieves accurate detection of travel through the cooperation of a non-contact proximity switch and a magnetic base, thereby improving the stability and durability of the system.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a limit switch for a hump stop device, including a first linkage plate, a magnet base, a second linkage plate, and a proximity switch;

[0005] The first linkage plate is fixed to the side wall of the cylinder cover of the hump stopper, and the magnet seat is fixed to the first linkage plate;

[0006] The second linkage plate is fixed to the side wall of the cylinder piston rod connecting plate of the hump stop device, and the proximity switch is fixed to the second linkage plate;

[0007] The proximity switch is positioned opposite to the magnet base.

[0008] Furthermore, both the first and second connecting plates are provided with screw holes, and both the first and second connecting plates are connected and fixed to the hump stop device by bolts passing through the screw holes.

[0009] Furthermore, the first linkage plate is disposed on the outer side of the cylinder cover sidewall, and the second linkage plate is disposed on the outer side of the cylinder piston rod connecting plate sidewall. The cylinder cover sidewall and the cylinder piston rod connecting plate sidewall are connected by a piston rod.

[0010] Furthermore, the magnet base is disposed on the outer edge of the first linkage plate, and the proximity switch is disposed on the outer edge of the second linkage plate.

[0011] Furthermore, the proximity switch is connected to a wire protection tube.

[0012] The advantages of this utility model compared with the prior art are as follows:

[0013] This invention employs a non-contact proximity switch in conjunction with a magnet base, avoiding the wear-related failures of traditional mechanical limit switches and improving system stability and durability. The screw-hole and bolt connection method simplifies installation and disassembly, facilitating future maintenance and replacement. The use of a protective conduit for electrical wiring effectively prevents electrical faults, further enhancing the operational safety of the hump stop device.

[0014] This invention significantly reduces the maintenance rate and improves the reliability and stability of the equipment; it enhances the marshalling yard's unmarshalling operation capabilities and further improves transportation efficiency; and it meets customers' dual requirements for the performance and cost of the hump stop limit switch. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the first linkage plate and magnet base of the travel switch of the hump stop device according to this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the second linkage plate and proximity switch of the travel switch of the hump stop device according to this utility model.

[0017] Figure 3 This is a schematic diagram of the proximity switch of the travel switch of a hump stop device in the braking position.

[0018] Figure 4 This is a schematic diagram of the proximity switch of a hump stop device in the released position.

[0019] Figure 5 This is a reference diagram showing the usage status of a travel switch for a hump stop device according to this utility model.

[0020] As shown in the figure: 1. First linkage plate, 2. Magnet base, 3. Second linkage plate, 4. Proximity switch, 5. Screw hole, 6. Wire protection tube, 7. Hump stop device, 8. Hydraulic cylinder cover side wall, 9. Hydraulic cylinder piston rod connecting plate side wall, 10. Piston rod. Detailed Implementation

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] In the description of this utility model, "first feature" and "second feature" may include one or more of the indicated features. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the indicated features.

[0023] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] The following is a detailed description of the travel switch for a hump stop device according to the present invention, with reference to the accompanying drawings.

[0025] Combined with appendix Figure 1-5 This invention will be described in detail below.

[0026] A limit switch for a hump stop device includes a first linkage plate 1, a magnet base 2, a second linkage plate 3, and a proximity switch 4. The first linkage plate 1 is fixedly mounted on the side wall 8 of the cylinder cover of the hump stop device 7, and the magnet base 2 is firmly fixed to the first linkage plate 1. Correspondingly, the second linkage plate 3 is fixedly mounted on the side wall 9 of the cylinder piston rod connecting plate of the hump stop device 7, and the proximity switch 4 is fixed to the second linkage plate 3. Crucially, the proximity switch 4 and the magnet base 2 are arranged opposite to each other.

[0027] Furthermore, to facilitate installation and disassembly, both the first linkage plate 1 and the second linkage plate 3 are designed with screw holes 5. By passing bolts through these screw holes 5, the linkage plates can be easily fastened to the corresponding components of the hump stop device 7.

[0028] Furthermore, to improve space utilization and ensure smooth operation, the first linkage plate 1 is located on the outer side of the cylinder cover side wall 8, and the second linkage plate 3 is located on the outer side of the cylinder piston rod connecting plate side wall 9. The movement between the two is transmitted through the piston rod 10. The magnet base 2 and the proximity switch 4 are located on the outer edges of their respective linkage plates to facilitate magnetic field induction and signal transmission.

[0029] Considering the potential electrical interference and physical damage in the actual operating environment, the proximity switch 4 is connected to a wire protection tube 6 to effectively protect the wire from external factors and ensure stable signal transmission.

[0030] The specific implementation process of the limit switch for the hump stop device of this utility model is as follows:

[0031] Combined with appendix Figure 3-4 When the computer sends a parking brake command, the hydraulic pressure of the working cylinder or the air pressure of the cylinder pushes the piston rod 10 outward, causing the brake rails on both sides to move outward until the braking position. At this time, the contact plate of proximity switch 4 falls due to magnetic demagnetization, 11-13 opens, and 11-12 closes, indicating that the parking brake is engaged. When the computer sends a parking brake release command, the hydraulic pressure of the working cylinder or the air pressure of the cylinder pushes the piston rod 10 inward, causing the brake rails on both sides to move inward until the release position. At this time, the contact plate of proximity switch 4 is attracted by magnetic force, 11-13 closes, and 11-12 opens, indicating that the parking brake is released.

[0032] The limit switch of this utility model for the hump stop device has the following characteristics:

[0033] 1. Simple and practical structure, easy to maintain;

[0034] 2. The shape and size can be adjusted according to the actual size of the hydraulic cylinder or air cylinder, but the internal structure and working principle remain unchanged.

[0035] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A hump parker travel switch characterized by: It comprises a first linkage plate (1), a magnet base (2), a second linkage plate (3) and a proximity switch (4). The first linkage plate (1) is fixed on the oil cylinder gland side wall (8) of the hump parking device (7), the magnet base (2) is fixed on the first linkage plate (1); The second linkage plate (3) is fixed on the oil cylinder piston rod connecting disc side wall (9) of the hump parking device (7), and the proximity switch (4) is fixed on the second linkage plate (3); The proximity switch (4) is arranged opposite to the magnet base (2).

2. A ramp parker travel switch according to claim 1, wherein: Screw holes (5) are arranged on the first linkage plate (1) and the second linkage plate (3), and the first linkage plate (1) and the second linkage plate (3) are connected and fixed with the hump parking device (7) through bolts passing through the screw holes (5).

3. A ramp parker travel switch according to claim 2, wherein: The first linkage plate (1) is arranged outside the oil cylinder gland side wall (8), the second linkage plate (3) is arranged outside the oil cylinder piston rod connecting disc side wall (9), and the oil cylinder gland side wall (8) and the oil cylinder piston rod connecting disc side wall (9) are connected through the piston rod (10).

4. A ramp parker travel switch according to claim 3, wherein: The magnet base (2) is arranged on the outer edge of the first linkage plate (1), and the proximity switch (4) is arranged on the outer edge of the second linkage plate (3).

5. A ramp parker travel switch according to claim 4, wherein: The proximity switch (4) is connected with a wire protection tube (6).

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