A synchronous mechanism applied to an electric inner support type parking anti-slip device

Abstract

The utility model belongs to the railway transport safety equipment technical field of preventing railway locomotive and vehicle to slide, specifically relates to a synchronous mechanism for electric inner bracing type parking anti -slip device, including wedge, guide block and lower frame, the wedge is opened with the "Y" shape guide groove, the guide block one end is fixedly connected with lower frame, the guide block other end is connected with the "Y" shape guide groove sliding, the "Y" shape guide groove is symmetrical with longitudinal centerline as benchmark, and is located in the corresponding wedge planar view left and right middle position, the utility model simple structure, strong function, low degree of difficulty of implementation, meet the actual working condition demand of parking anti -slip device, can effectively improve the reliability, durability and applicability of parking anti -slip device, reduce the failure rate, maintenance cost, use cost of equipment, also ensure the safety of railway vehicle and other equipment.

Description

Technical Field

[0001] This utility model belongs to the technical field of railway transportation safety equipment for preventing railway locomotives and rolling stock from slipping, and specifically relates to a synchronization mechanism applied to an electric internal support type anti-slip device. Background Technology

[0002] Electric anti-runaway devices, as highly efficient, safe, reliable, and easily remotely controlled equipment, are widely used in the field of railway locomotive and rolling stock safety to prevent runaway. They have become key equipment for ensuring railway traffic safety, and their reliability and stability directly affect railway traffic safety and transportation organization efficiency. The rationality of the transmission structure design of the electric anti-runaway device directly relates to the functionality, safety, and reliability of the entire device. Ensuring the synchronous movement of the left and right support arms is crucial for reducing harmful forces and minimizing structural component wear. This is especially true for electric anti-runaway devices on arrival and departure lines, where the left and right support arms must move horizontally and vertically during braking and release, making synchronous movement even more essential. Therefore, the synchronization mechanism of the electric anti-runaway device, as a key component ensuring the synchronous movement of the left and right support arms, plays a vital role. Currently, among the many structural types of electric anti-runaway devices, those with a wedge-shaped transmission mechanism at their core have gained widespread recognition from railway departments due to their rational mechanical transmission, simple structure, and high reliability. However, existing electric anti-runaway devices of this type have the following problems: First, some equipment lacks a synchronization mechanism. This leads to asynchrony during support arm movement, causing height differences between the left and right arms, twisting of the brake rail, and deformation of the internal transmission structure, resulting in severe component wear. Furthermore, instability during lifting and lowering can cause collisions with the vehicle wheelsets, damaging both the wheelsets and internal transmission components. Second, some equipment uses an "I"-shaped groove and a "V"-shaped hinged link in the left and right support arm movement plane. While this achieves synchronized movement, it doesn't account for the potential swaying of the moving parts (support arms and wedge blocks) with the vehicle wheelsets after the movement. In actual use, the "snake-like" movement of the railway vehicle wheelsets can damage the internal structure and components of the anti-slip device, rendering it ineffective. Third, some equipment... The synchronization mechanism, which uses a Y-shaped groove and a V-shaped articulated link, theoretically allows for synchronized movement of the left and right support arms. After the movement is complete, the moving part, consisting of the support arms and wedge blocks, can swing left and right with the vehicle wheelsets. However, this mechanism presents several challenges. First, the long horizontal movement of the left and right support arms necessitates a high Y-shaped groove, a long V-shaped articulated link, and a high lower frame. In practical applications, meeting the railway department's regulations on the lower clearance dimensions of track auxiliary equipment is extremely difficult. Second, to ensure the overall strength of the lower frame and the expected movement of the V-shaped articulated link, this synchronization mechanism requires additional components such as pull-back springs, spring seats, and Y-shaped groove seats, as well as multi-link articulation. This results in an overly complex structure with low reliability and durability, poor functionality, and high maintenance costs and difficulties. Utility Model Content

[0003] In view of the above-mentioned shortcomings in the existing technology, the present invention provides a synchronization mechanism for an electric internal support type parking anti-roll device to solve the above-mentioned problems.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A synchronization mechanism for an electric internal support type parking anti-roll device includes a wedge block, a guide block, and a lower frame. The wedge block has a "Y"-shaped guide groove. One end of the guide block is fixedly connected to the lower frame, and the other end of the guide block is slidably connected to the "Y"-shaped guide groove. The "Y"-shaped guide groove is symmetrical about the longitudinal center line and is located at the left and right middle positions of the top view of the corresponding wedge block.

[0005] Furthermore, the “Y”-shaped guide groove includes a limiting flat groove, a transition inclined groove, and a swing flat groove arranged sequentially from bottom to top.

[0006] Furthermore, the guide block includes a guide portion and a mounting base, the guide portion being slidably connected to a "Y"-shaped guide groove, and the mounting base being fixedly connected to the lower frame.

[0007] Furthermore, the distance between the two working surfaces of the limiting groove is not less than the width of the guide part, the inclination angle of the two working surfaces of the transition groove is not less than the inclination angle of the wedge block support surface on the same side, and the two working surfaces of the swing groove do not interfere with the guide part when the wedge block swings left and right.

[0008] Furthermore, the height of the guide portion is not less than the height of the top view of the corresponding wedge block.

[0009] Compared with the prior art, this utility model has the following advantages: 1. This utility model is equipped with a simple and highly functional synchronization mechanism, which effectively ensures that the horizontal movement and vertical lifting height of the left and right support arms are not only the same during the movement process, but also consistent. This truly realizes the synchronous movement of the left and right support arms, avoiding the problem of deformation of the internal transmission structure or collision of the moving part composed of the support arm and wedge block with the vehicle wheelset caused by the asynchronous movement of the left and right support arms. It eliminates the component wear and damage caused by the above problems, improves the reliability and durability of the parking anti-runaway device, reduces the maintenance and operating costs of the equipment, and ensures the safety of railway vehicles and other equipment. 2. This utility model adopts a synchronous mechanism of "Y"-shaped guide groove and fixed guide block. During the lifting stage, the guide block limits the limit groove, ensuring that the left and right support arms move synchronously. After the support arm moves, within the actual swing range of the vehicle wheelset, the swing groove does not interfere with the guide block, ensuring that the moving part composed of support arm and wedge block can swing freely left and right with the vehicle wheelset. This avoids component wear or damage caused by asynchronous movement of the left and right support arms, meets the functional requirements of the equipment under actual working conditions, improves the reliability, stability and applicability of the equipment, and reduces the equipment failure rate, maintenance cost and operating cost. 3. This utility model adopts a synchronization mechanism in which a "Y"-shaped guide groove is set in the plane in which the wedge block moves horizontally back and forth, that is, in the top view of the wedge block, and a guide block fixed on the lower frame is used to limit the wedge block, thereby limiting the left and right support arms during the lifting process. On the one hand, the components of the synchronization mechanism are not restricted by space and limits, avoiding the problem of insufficient space caused by the lower limit when the synchronization mechanism is set in the plane of the support arm movement. On the other hand, this synchronization mechanism has a simple structure and few components, which greatly enhances reliability, durability and functionality, greatly reduces the cost and difficulty of maintenance, and greatly reduces the difficulty of implementation. Attached Figure Description

[0010] Figure 1 This is a top view of a synchronization mechanism embodiment of the present invention applied to an electric internal support type parking anti-roll device, shown in a set of support arms of the parking anti-roll device. Figure 2This is a side view of a set of support arms in a parking anti-roll device, representing an embodiment of the synchronization mechanism of an electric internal support parking anti-roll device according to the present invention. Figure 3 This is a top view of a wedge block in an embodiment of the synchronization mechanism of an electric internal support type parking anti-roll device according to the present invention; Figure 4 This is a side view of a guide block in an embodiment of the synchronization mechanism of an electric internal support type parking anti-roll device according to the present invention; Figure 5 This is a top view of a guide block in an embodiment of the synchronization mechanism of an electric internal support type parking anti-roll device according to the present invention; Figure 6 This is a top view of an embodiment of the synchronization mechanism of an electric internal support type parking anti-roll device in the parking anti-roll device relief position. Figure 7 This is a top view of an embodiment of the synchronization mechanism of an electric internal support type parking anti-rollover device in the braking position of the parking anti-rollover device.

[0011] The reference numerals in the accompanying drawings include: 1. Basic rail; 2. Brake rail; 3. Wedge block; 4. "Y"-shaped guide groove; 5. Left support arm; 6. Right support arm; 7. Support roller; 8. Pull-back roller; 9. Guide block; 10. Lower frame; 11. Wedge block top view; 12. Center line of wedge block and "Y"-shaped guide groove; 13. Swinging flat groove; 14. Transition inclined groove; 15. Limiting flat groove; 16. Guide part; 17. Mounting seat; 18. Center line of guide part; 19. Center line of guide part and "Y"-shaped guide groove. Detailed Implementation

[0012] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0013] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0014] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0015] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it 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 utility model based on the specific circumstances. Example

[0016] like Figures 1-7 As shown, a synchronization mechanism of this utility model applied to an electric internal support type parking anti-roll device includes a wedge block 3, a guide block 9, and a lower frame 10. The guide block 9 and the wedge block 3 interact directly with each other, and are also connected to different components of a set of support arms of the parking anti-roll device. The specific structure is as follows: The “Y”-shaped guide groove 4 includes a limiting flat groove 15, a transition inclined groove 14 and a swing flat groove 13 arranged sequentially from bottom to top. The “Y”-shaped guide groove 4 is symmetrical about the left and right with the longitudinal center line as the reference and is located in the middle of the wedge block top view 11.

[0017] The guide block 9 includes a guide part 16 and a mounting base 17. The guide part 16 is slidably connected to the "Y"-shaped guide groove 4. The support surfaces and pull-back slides on the left and right sides of the wedge block 3 are respectively slidably connected to the support rollers 7 and pull-back rollers 8 of the support arm on the same side. The mounting base 17 is fixedly connected to the lower frame 10.

[0018] The distance between the two working surfaces of the limiting groove 15 is not less than the width of the guide part 16. The inclination angle of the two working surfaces of the transition groove 14 is not less than the inclination angle of the wedge block support surface and the steepest slope of the pull-back slide on the same side. The two working surfaces of the swing groove 13 do not interfere with the guide part 16 when the wedge block swings left and right.

[0019] Regardless of whether the parking anti-rollover device is in braking or released state, the height of the guide section 16 is always no less than the height of the wedge block's top surface 11.

[0020] When the parking anti-rollover device is in the released state, the center line 12 of the wedge block and the "Y"-shaped guide groove coincides with the center line 18 of the guide part.

[0021] When using this synchronization mechanism, its working principle and function are as follows: 1. When transitioning from the release state to the braking state: The drive mechanism of the electric parking device pulls the narrower end of the wedge block 3 longitudinally downward along the direction of the base rail 1. The support surfaces on both sides of the wedge block 3 push the support rollers 7 of the support arms on the same side, thereby pushing the left and right support arms and the brake rail 2 to move horizontally outward. During the outward horizontal movement of the support arms, they simultaneously rise under the action of the support arm lifting structure. At the same time, because the wedge block 3 moves longitudinally downward along the direction of the base rail 1, the guide part 16 slides upward relative to the limiting groove 15 in the limiting groove 15. The wedge block 3 is constrained by the guide part 16 and cannot swing left and right, ensuring that the left and right support arms move outward horizontally by an equal amount relative to the center line 19 of the guide part and the "Y"-shaped guide groove. During this process, the left and right support arms are supported. The lifting capacity of the boom lifting structure is also completely equal, and there will be no problem of one side being higher than the other. This achieves complete synchronization of the outward support and lifting action of the left and right support arms. As the wedge block 3 continues to move longitudinally downward along the direction of the basic rail 1, the guide part 16 continues to slide relative to the "Y"-shaped guide groove 4. When the guide part 16 slides out of the limit flat groove 15, the left and right support arms complete the lifting action. After the guide part 16 slides relative to the transition inclined groove 14 to the swing flat groove 13, the wedge block 3 stops moving longitudinally, and the parking anti-roll device is in a braking state. When a vehicle is running on the parking anti-roll device, the vehicle moves in a "snake-like" manner. The vehicle wheelset drives the action part composed of the left and right support arms and the wedge block 3 to swing left and right through the brake rails 2 on both sides. At this time, the guide part 16 does not interfere with the action surfaces on both sides of the swing flat groove 13, and the action part can swing freely.

[0022] 2. When moving from the braking state to the releasing state: The drive mechanism of the electric parking device pushes the narrower end of the wedge block 3 to move longitudinally upward along the direction of the basic rail 1. The pull-back slides on both sides of the wedge block 3 pull the pull-back rollers 8 of the support arms on the same side, thereby pulling the left and right support arms and the brake rail 2 to move horizontally inward. At this time, the guide part 16 slides downward relative to the "Y"-shaped guide groove 4 and enters the transition inclined groove 14 from the swing flat groove 13. During the relative sliding of the guide part 16 in the transition inclined groove 14, the center line between the left and right support arms, the center line 12 of the wedge block and the "Y"-shaped guide groove gradually approaches the center line 18 of the guide part. When the guide part 16 slides away from the transition inclined groove 14 and enters the limiting flat groove 15, the above three center lines are completely coincident. At this time, during the horizontal movement of the left and right support arms inward, they begin to descend under the action of the support arm lifting structure. As the wedge block 3 continues to move longitudinally upward along the main rail 1, the guide part 16 slides longitudinally downward relative to the limiting groove 15 in the limiting groove 15. The wedge block 3 is constrained by the guide part 16 and cannot swing left or right, ensuring that the left and right support arms move inward horizontally by the same amount relative to the center line 19 of the guide part and the "Y"-shaped guide groove. During this process, the left and right support arms also descend by the same amount due to the lifting structure of the support arms, and there will be no problem of one side being higher than the other. The inward and downward movements of the left and right support arms are completely synchronized. When the guide part 16 slides relative to the limiting groove 15 to the predetermined position below, the inward and downward movements of the left and right support arms are completed, and the parking anti-runaway device moves to the relief position. At this time, all parts of the parking anti-runaway device are outside the railway locomotive and rolling stock clearance, and railway vehicles can pass through the parking anti-runaway device at any speed.

[0023] The above are merely embodiments of this utility model. Commonly known structures and characteristics are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field prior to the application date or priority date, are aware of all existing technologies in that field, and have the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, based on the guidance provided in this application, improve and implement this solution in combination with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A synchronization mechanism for an electric internal support type parking anti-roll device, characterized in that: It includes a wedge block, a guide block, and a lower frame. The wedge block has a "Y"-shaped guide groove. One end of the guide block is fixedly connected to the lower frame, and the other end of the guide block is slidably connected to the "Y"-shaped guide groove. The "Y"-shaped guide groove is symmetrical about the longitudinal center line and is located in the middle of the left and right sides of the top view of the corresponding wedge block.

2. The synchronization mechanism for an electric internal support type parking anti-roll device as described in claim 1, characterized in that: The "Y"-shaped guide groove includes a limiting flat groove, a transition inclined groove, and a swing flat groove arranged sequentially from bottom to top.

3. The synchronization mechanism for an electric internal support type parking anti-roll device as described in claim 2, characterized in that: The guide block includes a guide portion and a mounting base. The guide portion is slidably connected to a "Y"-shaped guide groove, and the mounting base is fixedly connected to the lower frame.

4. The synchronization mechanism for an electric internal support type parking anti-roll device as described in claim 3, characterized in that: The distance between the two working surfaces of the limiting groove is not less than the width of the guide part, the inclination angle of the two working surfaces of the transition groove is not less than the inclination angle of the wedge block support surface on the same side, and the two working surfaces of the swing groove do not interfere with the guide part when the wedge block swings left and right.

5. The synchronization mechanism for an electric internal support type parking anti-roll device as described in claim 4, characterized in that: The height of the guide section is not less than the height of the top view of the corresponding wedge block.

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