Elastic adjustable position head device for railway turnout and railway turnout

Abstract

The application provides a switch elastic adjustable position top iron device and a railway switch, and relates to the technical field of railway switch conversion equipment. The switch has relatively arranged basic rails and a point rail. The top iron device comprises: a top iron support, which is fixedly connected with the basic rails; a top iron sliding block, which is slidingly matched with the top iron support in a direction perpendicular to the point rail; a cam transmission assembly, which is rotationally supported on the top iron support and is slidingly connected with the top iron sliding block; and an elastic reset member, which is arranged between the top iron support and the top iron sliding block. When the cam transmission assembly rotates in a first direction, the top iron sliding block is driven to feed in the direction of the point rail. When the cam transmission assembly rotates in a second direction opposite to the first direction, the elastic reset member drives the top iron sliding block to reset in the direction away from the point rail.

Description

Technical Field

[0001] This invention relates to the field of railway turnout switching equipment technology, specifically to a flexible adjustable positioning iron device for a turnout and a railway turnout. Background Technology

[0002] Traditionally, the top rail of the switch rail is installed vertically on the outer web of the switch rail. It is a key load-bearing component that contacts the stock rail, transmits lateral forces, prevents the switch rail from bending, and maintains the track gauge. In heavy-haul turnouts, the requirements for its reliability and stability are even more stringent, specifically reflected in:

[0003] 1. Precision gap control: Precision fine adjustment of approximately 0.1-0.3mm is required to eliminate gaps between the top iron and the rail components (standard requirement ≤1mm).

[0004] 2. Strict maintenance standards: all components must be in good condition, bolts and other connectors must function properly, and any deformation or damage must be repaired immediately.

[0005] However, the current mainstream adjustment method involves adding or removing steel shims with a thickness of 0.5mm or 1mm between the top rail and the rail web. This stepped, incremental adjustment is severely mismatched with the continuous and precise fine-tuning requirements on site, often leading to a dilemma in practice where "adjusting is too tight, and not adjusting is too loose." Summary of the Invention

[0006] In view of this, the present invention provides a flexible adjustable positioning iron device for a turnout and a railway turnout.

[0007] This invention provides an elastically adjustable top rail device for a turnout. The turnout has a main rail and a switch rail arranged opposite to each other. The top rail device includes: a top rail support, fixedly connected to the main rail; a top rail slider, slidingly engaged with the top rail support in a direction perpendicular to the switch rail; a cam transmission assembly, rotatably supported on the top rail support and slidably connected to the top rail slider; and an elastic reset member disposed between the top rail support and the top rail slider. When the cam transmission assembly rotates in a first direction, it drives the top rail slider to feed along the switch rail direction; when the cam transmission assembly rotates in a second direction opposite to the first direction, the elastic reset member drives the top rail slider to reset in a direction away from the switch rail.

[0008] According to an embodiment of the present invention, the cam transmission assembly includes: a camshaft rotatably supported on a top iron support; a push rod, one end of which abuts against the camshaft and the other end of which is slidably connected to the top iron slider; wherein, when the cam transmission assembly rotates along a first direction, it drives the push rod to make linear motion, and the push rod pushes the top iron slider to feed along the tip rail direction.

[0009] According to an embodiment of the present invention, a plurality of push rods are provided corresponding to the axial position of the camshaft; the camshaft includes a plurality of cams fixed along the axial direction and corresponding to the plurality of push rods, and each cam abuts against the corresponding push rod.

[0010] According to an embodiment of the present invention, the elastic reset member is wound around the outer wall of the push rod; the cam transmission assembly further includes: a force transmission plate and an upper baffle that are slidably sleeved on the push rod and connected to both ends of the elastic reset member, wherein the upper baffle abuts against the cam shaft and the force transmission plate is fixedly connected to the top iron slider.

[0011] According to an embodiment of the present invention, the push rod extends out of the force transmission plate along the direction toward the top iron slider and is slidably connected to the top iron slider.

[0012] According to an embodiment of the present invention, the top iron support is provided with a stepped structure protruding along the direction perpendicular to the switch rail and toward the switch rail, and the top iron slider slides in cooperation with the stepped surface of the stepped structure.

[0013] According to an embodiment of the present invention, the stepped structure includes an upper stepped surface and a lower stepped surface running from top to bottom along the height direction. The upper stepped surface and the lower stepped surface are respectively provided with an upper slider and a lower slider in a direction perpendicular to the switch rail. The top iron slider is provided with an upper sliding groove and a lower sliding groove at positions corresponding to the upper stepped surface and the lower stepped surface. The upper slider slides along the upper sliding groove, and the lower slider slides along the lower sliding groove.

[0014] According to an embodiment of the present invention, a camshaft hole is provided on the outer side of the stepped structure, and the camshaft is embedded in the camshaft hole; a push rod hole is provided on the vertical side wall between the upper stepped surface and the lower stepped surface, wherein the push rod hole and the camshaft hole are connected inside the top iron support, so that one end of the push rod passes through the push rod hole and abuts against the camshaft.

[0015] According to an embodiment of the present invention, a hydraulic cylinder is provided inside the top iron support, and the cam transmission assembly is immersed in the hydraulic oil of the hydraulic cylinder.

[0016] Another aspect of the present invention provides a railway turnout, including the aforementioned turnout elastic adjustable positioning iron device.

[0017] Compared with the prior art, the flexible adjustable positioning iron device for turnouts and the railway turnout provided by the present invention have at least the following beneficial effects:

[0018] (1) The cam drive assembly and elastic reset component 7 are used to replace the traditional threaded pair, and the rotary motion adjustment is converted into linear feed. The cam drive assembly can complete the reciprocating adjustment of the top iron's full stroke (0-5mm) every one revolution. The adjustment speed is 5-10 times higher than the thread adjustment of the traditional threaded pair, and the adjustment efficiency is significantly improved.

[0019] (2) The cam drive assembly utilizes the lever effect of the cam lift to achieve quick adjustment with one hand, ensuring automatic self-locking after adjustment without the need for additional locking operation.

[0020] (3) The top iron device has a gap self-adaptive function. It can be adjusted to the optimal state by simply using the lateral adjustment slot without disassembling the bolts, which greatly simplifies the maintenance process and saves time and effort. Attached Figure Description

[0021] The above-described features, other objects, and advantages of the present invention will become clearer from the following description of embodiments of the invention with reference to the accompanying drawings, in which:

[0022] Figure 1 A schematic diagram of a turnout elastic adjustable positioning iron device according to an embodiment of the present invention is shown.

[0023] Figure 2 The schematic diagram illustrates the structure of the cam drive assembly and the elastic reset member according to an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of a camshaft according to an embodiment of the present invention is shown.

[0025] Figure 4 A schematic diagram illustrating the stepped structure in the top iron support according to an embodiment of the present invention is shown.

[0026] Figure 5 The schematic diagram illustrates the structure of the upper and lower sliding grooves in the top iron slider according to an embodiment of the present invention;

[0027] Figure 6 The schematic diagram illustrates the structure of the push rod hole and camshaft hole according to an embodiment of the present invention;

[0028] Figure 7 This schematic diagram illustrates the structure of the cam drive assembly and the elastic reset member mounted on the top iron support according to an embodiment of the present invention.

[0029] Figure 8 The diagram schematically illustrates the structure of the cam drive assembly and the elastic reset member mounted on the top iron slider according to an embodiment of the present invention.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1-Top iron support; 2-Top iron slider; 3-Camshaft hole; 4-Push rod; 5-Force transmission plate; 6-Camshaft; 7-Elastic reset component; 8-Upper baffle; 9-Upper slider; 10-Lower slider; 11-Upper slide groove; 12-Lower slide groove. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0033] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The terms “comprising,” “including,” etc., as used herein indicate the presence of the stated features, steps, operations, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, or components.

[0034] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0035] All terms used herein (including technical and scientific terms) have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein are to be interpreted in a manner consistent with the context of this specification, and not in an idealized or overly rigid way.

[0036] In the process of realizing the technical concept of this invention, the inventors discovered that the current top iron adjustment method has the following two problems:

[0037] (1) Low maintenance efficiency: It requires disassembling bolts for repeated trial adjustments, which takes a long time;

[0038] (2) Outdated adjustment method: It can only achieve stepped adjustment by adding or removing shims, and cannot adapt to the continuous changes after the switch rail wears out.

[0039] In view of this, embodiments of the present invention provide a flexible adjustable positioning iron device for a turnout and a railway turnout.

[0040] Figure 1 A schematic diagram of a turnout elastic adjustable positioning iron device according to an embodiment of the present invention is shown. Figure 2 The diagram schematically illustrates the structure of the cam drive assembly and the elastic reset member according to an embodiment of the present invention.

[0041] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an elastic adjustable top rail device for a turnout. The turnout has a base rail and a switch rail arranged opposite to each other. The top rail device includes a top rail support 1, a top rail slider 2, a cam transmission assembly, and an elastic reset member 7.

[0042] The top iron support 1 is fixedly connected to the main rail to provide stable support.

[0043] The top iron slider 2 slides in a direction perpendicular to the switch rail and is in contact with the top iron support 1. The top iron slider 2 can directly contact the switch rail to transmit lateral force and prevent the switch rail from bending.

[0044] The cam drive assembly is rotatably supported on the top iron support 1 and slidably connected to the top iron slider 2, and is used to drive the top iron slider 2 to slide by rotation. This sliding includes lift sliding and return sliding.

[0045] The elastic reset element 7 is disposed between the top iron support 1 and the top iron slider 2 to provide reverse reset force. For example, the elastic reset element 7 can be a disc spring or a coil spring.

[0046] When the cam drive assembly rotates in the first direction, it drives the top iron slider 2 to feed in the direction of the tip rail; when the cam drive assembly rotates in the second direction opposite to the first direction, the elastic reset member 7 drives the top iron slider 2 to reset in the direction away from the tip rail.

[0047] In embodiments of the present invention, the cam drive assembly has two rotation directions: a first direction and a second direction. The first direction is one of forward and reverse rotation, serving as the feed direction, while the second direction is the other of forward and reverse rotation, serving as the reset direction.

[0048] When the cam drive assembly rotates in the first direction, the cam lift (the involute design of the cam profile) generates a mechanical amplification effect (i.e., a small input torque can amplify the output force), driving the top iron slider 2 to feed precisely in the direction of the tip rail.

[0049] The elastic reset element 7 is disposed between the top iron support 1 and the top iron slider 2. When the cam transmission assembly rotates in the second direction, the elastic reset element 7 releases the stored elastic energy, driving the top iron slider 2 to reset away from the switch rail, thereby increasing the gap. For example, the elastic reset element 7 can be a coil spring or a disc spring.

[0050] For example, when the cam drive assembly rotates forward, the force amplification effect of the cam lift drives the top iron slider 2 to move towards the switch rail, reducing the clearance to transmit lateral force. When the cam drive assembly rotates in the reverse direction, the stored energy of the elastic reset member 7 is released, causing the top iron slider 2 to reset away from the switch rail, increasing the clearance to compensate for wear or thermal expansion and contraction.

[0051] Through embodiments of the present invention, the force-multiplying effect of the cam transmission assembly's lift drives the top rail slider towards the switch rail, and the energy release of the elastic reset component drives the top rail slider to reset in the opposite direction, achieving rapid adjustment of the gap between the top rail and the switch rail and automatic wear compensation. This invention solves the problems of difficult gap adjustment and insufficient wear compensation of traditional top rails under heavy load conditions, enabling dynamic adjustment and automatic compensation of the gap between the top rail and the stock rail, improving the stability and reliability of heavy-load turnouts. Optimal working gap can be maintained without frequent manual intervention, improving the stability of the turnout under temperature changes or heavy-load vibrations.

[0052] Please continue reading. Figure 2 In some embodiments, the cam drive assembly includes a camshaft 6 and a push rod 4. The camshaft 6 is rotatably supported on the top iron support 1. One end of the push rod 4 abuts (i.e., contacts) the camshaft 6, and the other end of the push rod 4 is slidably connected to the top iron slider 2. When the cam drive assembly rotates in the first direction, it drives the push rod 4 to make linear motion, and the push rod 4 pushes the top iron slider 2 to feed along the tip rail direction.

[0053] The camshaft 6 is mounted on the top iron support 1 via a swivel bearing, allowing the camshaft 6 to rotate about the support point. For example, the top iron support 1 is also provided with a drive mechanism (such as an engine) for driving the camshaft 6 to rotate.

[0054] When the cam drive assembly rotates in a first direction (e.g., clockwise or counterclockwise), the profile of the camshaft (e.g., involute or eccentric design) acts as the driving element, directly driving the push rod 4 that abuts against it. One end of the push rod 4 abuts (i.e., contacts) the profile surface of the camshaft 6, and the other end is connected to the top rail slider 2 via a sliding connection (e.g., a groove or guide rail). The rotation of the camshaft 6 converts the rotational motion into the linear motion of the push rod 4 through its profile shape (lift), thus causing the push rod 4 to make a linear displacement perpendicular to the switch rail. The linear motion of the push rod 4 pushes the top rail slider 2 to feed along the switch rail direction (i.e., towards the switch rail), thereby reducing or compensating for the gap between the top rail and the switch rail.

[0055] Through the embodiments of the present invention, the cam profile of the camshaft 6 determines the motion law (displacement, speed, etc.) of the push rod 4, thereby precisely controlling the feed amount of the top iron slider 2, ensuring the reliability of turnout switching and automatic compensation function.

[0056] In some embodiments, the elastic reset member 7 is wound around the outer wall of the push rod 4. The cam drive assembly also includes a force transmission plate 5 and an upper baffle 8 that are slidably sleeved on the push rod 4 and connected to both ends of the elastic reset member 7. The upper baffle 8 abuts against the camshaft 6, and the force transmission plate 5 is fixedly connected to the top block slider 2.

[0057] The elastic reset element 7 is coaxially wound around the outer wall of the push rod 4, with its two ends fixed to the force transmission plate 5 and the upper baffle 8, respectively. It is used to store elastic energy and provide reset driving force. When the top iron slider 2 is driven by the cam to move towards the switch rail, the elastic reset element 7 is compressed and stores energy; when the cam force is removed, the elastic reset element 7 releases energy and drives the top iron slider 2 to reset in order to maintain the dynamic balance of the gap.

[0058] The force transmission plate 5 is fixedly connected to the top iron slider 2 and is slidably sleeved on the push rod 4. Its function is to transmit the elastic force of the elastic reset member 7 to the top iron slider 2.

[0059] The upper baffle 8 is slidably sleeved on the push rod 4, with one end abutting against the camshaft 6 and the other end connected to the elastic reset member 7. When the camshaft 6 rotates, its contour pushes the upper baffle 8 to move axially along the push rod 4, thereby compressing the elastic reset member 7. The upper baffle 8 can be used to limit the maximum compression stroke of the elastic reset member 7 to avoid overload damage.

[0060] In the embodiments of the present invention, the elastic reset member 7 wraps around the push rod 4, reducing the lateral space occupied and adapting to the narrow environment of the turnout. The rigid connection between the force transmission plate 5 and the slider 2 ensures efficient force transmission, and the abutment design of the upper baffle 8 avoids the cam impact from directly acting on the elastic reset member 7, extending its service life.

[0061] Furthermore, the push rod 4 extends out of the force transmission plate 5 along the direction toward the top iron slider 2 and is slidably connected to the top iron slider 2.

[0062] The axis of push rod 4 faces the top rail slider 2. After passing through the force transmission plate 5, its rod continues to extend into the top rail slider 2, forming a section extending out of the force transmission plate 5. Since the force transmission plate 5 is fixedly connected to the top rail slider 2, this extended section of the rod can maintain a sliding connection with the top rail slider 2, serving as a stress relief point for the entire device. Under heavy load conditions, when the switch rail is subjected to a huge lateral impact, the top rail slider 2 will generate a slight vibration. The sliding fit between push rod 4 and top rail slider 2 can absorb this vibration energy, preventing the cam drive assembly from being subjected to high-frequency impacts.

[0063] Figure 3 A schematic diagram of a camshaft according to an embodiment of the present invention is shown.

[0064] Please combine Figure 2 and Figure 3 As shown, in some embodiments, a plurality of push rods 4 are provided at corresponding axial positions along the camshaft 6. The camshaft 6 includes a plurality of cams fixed along the axial direction and corresponding to the plurality of push rods 4, and each cam abuts against the corresponding push rod 4.

[0065] In the embodiments of the present invention, the camshaft 6 has multiple cams, each cam driving a push rod 4. These push rods 4 are arranged axially, which can realize multi-point driving or load distribution, and enhance the stability and adjustment accuracy of the device under heavy load conditions.

[0066] Figure 4 A schematic diagram of the stepped structure in the top iron support according to an embodiment of the present invention is shown. Figure 5 The diagram schematically illustrates the structure of the upper and lower sliding grooves in the top iron slider according to an embodiment of the present invention.

[0067] like Figure 4 and Figure 5 As shown, the top iron support 1 has a stepped structure protruding along the direction perpendicular to the switch rail and towards the switch rail, and the top iron slider 2 slides in contact with the stepped surface of the stepped structure.

[0068] The embodiments of the present invention adopt a stepped structure, which utilizes the height gradient of the stepped structure to make the contact surface of the top iron slider 2 slide in conjunction with the top iron support 1.

[0069] Furthermore, the stepped structure includes an upper stepped surface and a lower stepped surface running from top to bottom along the height direction. The upper stepped surface and the lower stepped surface are respectively provided with an upper slider 9 and a lower slider 10 protruding along the direction perpendicular to the switch rail. The top iron slider 2 has an upper sliding groove 11 and a lower sliding groove 12 corresponding to the positions of the upper stepped surface and the lower stepped surface, respectively. The upper slider 9 slides along the upper sliding groove 11, and the lower slider 10 slides along the lower sliding groove 12.

[0070] Since the top iron slider 2 slides with the top iron support 1 along a direction perpendicular to the switch rail, in this embodiment of the invention, a protruding slider is provided on each of the two horizontal stepped surfaces along the height direction of the stepped structure, namely the upper stepped surface and the lower stepped surface. The sliding engagement between the top iron slider 2 and the top iron support 1 is achieved by utilizing the cooperation between the slider and the groove opened on the top iron slider 2. The direction of the slider defines the sliding direction, namely, along a direction perpendicular to the switch rail.

[0071] In the embodiments of the present invention, the contact surfaces of the upper slider 9, the lower slider 10 and the top iron slider 2 form a sliding guide pair, which restricts the vertical and lateral degrees of freedom of the top iron slider 2, and only retains the translational degree of freedom along the longitudinal direction of the switch rail, ensuring the parallelism between the working surface of the top iron and the side of the switch rail and the precise adjustability of the top pressure gap.

[0072] Figure 6 The schematic diagram illustrates the structure of the push rod hole and camshaft hole according to an embodiment of the present invention.

[0073] like Figure 6As shown in the front view and the sectional view along section AA in the front view, in some embodiments, a camshaft hole 3 is provided on the outer side of the stepped structure, and the camshaft 6 is embedded in the camshaft hole 3. In the above-mentioned stepped structure, a push rod hole is provided on the vertical sidewall between the upper stepped surface and the lower stepped surface. The push rod hole and the camshaft hole 3 are connected inside the top iron support 1 (e.g., Figure 6 (Vertical through-hole visible in the mid-section view), allowing one end of the push rod 4 to pass through the push rod hole and abut against the camshaft 6.

[0074] The camshaft 6 is inserted into the camshaft hole 3, allowing it to rotatably support itself on the top iron support 1. A vertical sidewall connects the upper and lower stepped surfaces, forming a vertical sidewall. A push rod hole is formed in the vertical sidewall, allowing one end of the push rod 4 to pass through and extend into the camshaft hole 3, thus contacting the camshaft 6 embedded in the camshaft hole 3. Therefore, when the camshaft 6 rotates in the first direction, it can drive the push rod 4, which contacts it, to perform linear motion.

[0075] Figure 7 The diagram schematically illustrates the structure of the cam drive assembly and the elastic reset member mounted on the top iron support according to an embodiment of the present invention. Figure 8 The diagram schematically illustrates the structure of the cam drive assembly and the elastic reset member mounted on the top iron slider according to an embodiment of the present invention.

[0076] Please combine Figure 7 and Figure 8 As shown, during installation, the cam drive assembly and the elastic reset component are assembled with the camshaft 6 embedded in the camshaft hole 3 on the outer side of the stepped structure of the top iron support 1. In this stepped structure, a push rod hole is provided on the vertical sidewall between the upper and lower stepped surfaces, and one end of the push rod 4 passes through the push rod hole. The upper baffle 8 is slidably sleeved on the push rod 4, and one end of it abuts against the camshaft 6. The elastic reset component 7 is coaxially wound around the outer wall of the push rod 4, and its two ends are fixed to the force transmission plate 5 and the upper baffle 8, respectively. The upper and lower stepped surfaces are respectively provided with an upper slider 9 and a lower slider 10 protruding along the direction perpendicular to the switch rail. The top iron slider 2 is provided with an upper sliding groove 11 and a lower sliding groove 12 at positions corresponding to the upper and lower stepped surfaces. The upper slider 9 slides along the upper sliding groove 11, and the lower slider 10 slides along the lower sliding groove 12.

[0077] In some embodiments, the top iron support 1 is equipped with a hydraulic cylinder, and the cylinder barrel is equipped with a cam drive assembly, which is immersed in the hydraulic oil of the cylinder. In addition, the oil inlet and outlet of the hydraulic cylinder and the piston hole are equipped with sealing rings to form a sealed oil chamber to prevent the cam drive assembly from corroding.

[0078] In summary, the adjustable top rail device for turnouts according to this embodiment of the invention includes a top rail support 1, a top rail slider 2, a cam transmission assembly, and an elastic reset member 7. When the cam transmission assembly rotates to the lift position, it pushes the top rail slider 1 towards the switch rail; when the cam transmission assembly rotates to the return position, the elastic reset member 7 drives the top rail slider 2 to reset in the opposite direction, thereby realizing continuous adjustment of the gap between the top rail and the switch rail.

[0079] In this embodiment of the invention, a cam drive assembly and an elastic reset component 7 are used to replace the traditional threaded pair, converting the rotary motion adjustment into linear feed. The cam drive assembly can complete the reciprocating adjustment of the top iron's full stroke (0-5mm) with each rotation. The adjustment speed is 5-10 times faster than the threaded adjustment of the traditional threaded pair, and the adjustment efficiency is significantly improved.

[0080] Furthermore, the cam transmission assembly of this invention utilizes the lever amplification effect of cam lift to achieve quick one-handed adjustment, ensuring automatic self-locking after adjustment without the need for additional locking operations. This top iron device features a clearance self-adaptive function, eliminating the need to disassemble bolts; it can be adjusted to the optimal state using only the lateral adjustment slot, significantly simplifying the maintenance process and saving time and effort.

[0081] This invention also provides a railway turnout, which includes the turnout elastic adjustable positioning iron device of any of the above embodiments.

[0082] It should be noted that the embodiment of the turnout elastic adjustable position jacking device in railway turnouts is similar to that of any of the above-mentioned embodiments of the turnout elastic adjustable position jacking device, and the technical effects achieved are also similar. For specific details, please refer to the embodiment of any of the above-mentioned turnout elastic adjustable position jacking devices, which will not be repeated here.

[0083] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "axial," "upper," "lower," "front," "rear," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted when they may cause confusion in understanding the invention. Furthermore, the shapes, sizes, and positional relationships of the components in the drawings do not reflect their actual size, scale, and actual positional relationships.

[0084] 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. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified. Furthermore, the word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.

[0085] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A flexible adjustable positioning iron device for a turnout, the turnout having a main rail and a switch rail arranged opposite to each other, characterized in that, The device includes: Top iron support (1) is fixedly connected to the basic rail; The top iron slider (2) slides in a direction perpendicular to the tip rail and engages with the top iron support (1); The cam drive assembly is rotatably supported on the top iron support (1) and slidably connected to the top iron slider (2); and An elastic reset member (7) is disposed between the top iron support (1) and the top iron slider (2); When the cam drive assembly rotates along the first direction, it drives the top iron slider (2) to feed along the tip rail direction; when the cam drive assembly rotates along the second direction opposite to the first direction, the elastic reset member (7) drives the top iron slider (2) to reset along the direction away from the tip rail.

2. The adjustable positioning iron device for turnouts according to claim 1, characterized in that, The cam drive assembly includes: Camshaft (6) is rotatably supported on top iron support (1); Push rod (4), one end of which abuts against the camshaft (6), and the other end of which is slidably connected to the top iron slider (2); When the cam transmission assembly rotates along the first direction, it drives the push rod (4) to move in a straight line, and the push rod (4) pushes the top iron slider (2) to feed along the tip rail direction.

3. The adjustable positioning iron device for turnouts according to claim 2, characterized in that, Multiple push rods (4) are provided at corresponding axial positions along the camshaft (6); The camshaft (6) includes a plurality of cams fixed along the axial direction and corresponding to a plurality of push rods (4), each cam abutting against the corresponding push rod (4).

4. The adjustable positioning iron device for turnouts according to claim 2, characterized in that, The elastic reset element (7) is wrapped around the outer wall of the push rod (4); The cam drive assembly also includes: The force transmission plate (5) and the upper baffle (8) are slidably sleeved on the push rod (4) and connected to both ends of the elastic reset member (7), wherein the upper baffle (8) abuts against the camshaft (6), and the force transmission plate (5) is fixedly connected to the top iron slider (2).

5. The adjustable positioning iron device for turnouts according to claim 4, characterized in that, The push rod (4) extends out of the force transmission plate (5) along the direction toward the top iron slider (2) and is slidably connected to the top iron slider (2).

6. The adjustable positioning iron device for turnouts according to claim 2, characterized in that, The top iron support (1) has a stepped structure protruding along the direction perpendicular to the switch rail and toward the switch rail, and the top iron slider (2) slides in cooperation with the stepped surface of the stepped structure.

7. The adjustable positioning iron device for turnouts according to claim 6, characterized in that, The stepped structure includes an upper stepped surface and a lower stepped surface along the height direction from top to bottom. The upper stepped surface and the lower stepped surface are respectively provided with an upper slider (9) and a lower slider (10) along the direction perpendicular to the tip rail. The top block slider (2) is provided with an upper sliding groove (11) and a lower sliding groove (12) at positions corresponding to the upper and lower stepped surfaces. The upper block slider (9) slides along the upper sliding groove (11), and the lower block slider (10) slides along the lower sliding groove (12).

8. The adjustable positioning iron device for turnouts according to claim 7, characterized in that, The outer side of the stepped structure is provided with a camshaft hole (3), and the camshaft (6) is inserted into the camshaft hole (3). A push rod hole is provided in the vertical sidewall between the upper and lower stepped surfaces. The push rod hole and the camshaft hole (3) are connected inside the top iron support (1), so that one end of the push rod (4) passes through the push rod hole and abuts against the camshaft (6).

9. The adjustable positioning iron device for turnouts according to claim 2, characterized in that, The top iron support (1) is equipped with an oil cylinder, and the cam transmission assembly is immersed in the hydraulic oil of the oil cylinder.

10. A railway turnout, characterized in that, The turnout elastic adjustable positioning iron device includes any one of claims 1-9.

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