Switch machine and its action plate group mechanism

Abstract

The application discloses a switch machine and a moving plate set mechanism thereof, and belongs to the technical field of switch machines. The moving plate set mechanism comprises a moving plate, a quick-action sheet, a guide shaft and a compression spring. The moving plate adopts a long strip structure with a rolling plane at the upper part and climbing inclined surfaces at both ends. A fixed plate connected with a locking iron is arranged at the bottom of the moving plate, an axial through hole is formed in the center of the moving plate, two quick-action sheets, two guide shafts and a compression spring are arranged in the axial through hole, a guide hole for the compression spring to extend into is formed in the inner end of each of the two guide shafts, the two quick-action sheets are connected to the outer end of each of the two guide shafts, a limiting mechanism is further arranged at the two ends of the axial through hole, and the upper part of each of the quick-action sheets is protruded from the surface of the climbing inclined surface. The soft connection of the two quick-action sheets is realized by the assembly mode of the guide shaft and the compression spring, the parts are few, the mechanical structure is simple and easy to process, the assembly is simple, the integration degree is high, the axial movement of the quick-action sheet has the guiding self-adjusting function, the quick-action sheet is not prone to blockage, and each function of the moving plate set can be effectively realized.

Description

Technical Field

[0001] The present invention relates to the technical field of switch machines for railway turnouts, in particular to a switch machine and an actuating plate assembly mechanism thereof. Background Art

[0002] The main function of a railway switch is to realize the conversion, locking and position status indication of the switch. The position status indication function transmits signals through the on-off function of the contacts, and the realization of the on-off function of the contacts requires the action plate assembly to drive the contacts to achieve conversion. The parts processing technology of the existing action plate assembly mechanism is complex and the assembly process is cumbersome. The quick-acting plate is installed between the action plate and the cover plate and fastened with rivets. The two quick-acting plates are fixed with separate compression springs. In this way, when the compression force value of the spring changes, the reset speed of the two quick-acting plates will be inconsistent. When the rivet screws are used to tighten the cover plate, the quick-acting plate and the action plate are easily fitted too tightly, causing the quick-acting plate to be easily stuck when reset under the action of the compression spring, and the reset function cannot be realized.

[0003] As can be seen from this, the existing switch mechanism's actuating plate assembly still suffers from inconveniences and defects in its structure, method, and use, and is in urgent need of further improvement. The industry is currently urgently seeking to develop a new switch mechanism and actuating plate assembly that, by providing a through hole in the actuating plate and integrating a compression spring between two guide shafts to achieve relative fixation of the two quick-acting plates, results in a minimal number of parts, a simple and easily machined mechanical structure, a high degree of integration, and a simplified assembly process. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an action plate assembly mechanism for a switch machine, which realizes the relative fixation of two quick-acting plates by opening a through hole on the action plate and adding a compression spring in the two guide shafts, thereby forming an action plate assembly structure with few parts, simple mechanical structure, easy processing, high integration and simple assembly process, thereby overcoming the shortcomings of the existing action plate assembly mechanism of the switch machine.

[0005] In order to solve the above technical problems, the present invention provides an action plate group mechanism of a switch machine, including an action plate, a quick-acting plate, a guide shaft and a compression spring, the action plate adopts a long strip structure with a rolling plane on the upper part and climbing slopes on both ends, the bottom of the long strip structure is provided with a fixing plate for connecting with the locking iron in the switch machine, an axial through hole is opened in the center of the long strip structure, two quick-acting plates, two guide shafts and the compression spring are arranged in the axial through hole, the inner ends of the two guide shafts are provided with guide holes for the compression springs to extend into, the two quick-acting plates are respectively connected to the outer ends of the two guide shafts, and limiting mechanisms are also provided at both ends of the axial through hole to prevent the quick-acting plate from disengaging from the axial through hole under the action of the compression spring, and the upper parts of the quick-acting plates protrude from the On the surface of the climbing slope, when the action plate moves to the left side driven by the locking iron, the left contact roller of the switch machine moves upward along the left climbing slope of the action plate, and the tip of the contact frame of the switch machine drives the left quick-acting piece to compress the compression spring and move to the right. When the contact roller reaches the rolling plane of the action plate, the tip of the contact frame disengages from the quick-acting piece, and the quick-acting piece quickly resets under the action of the compression spring, and the locking iron continues to move the action plate to the left until the tip of the right contact frame of the switch machine disengages from the right quick-acting piece, thereby realizing the unlocking, conversion and locking actions of the left contact group of the switch machine and the right contact group of the switch machine. On the contrary, when the action plate moves to the right side driven by the locking iron, the right contact group of the switch machine is unlocked, converted and the left contact group is locked.

[0006] As a further improvement, the limiting mechanisms at both ends of the axial through hole adopt limiting pins that are axially perpendicular to the axial through hole.

[0007] As a further improvement, the outer end portion of the guide shaft is provided with an open groove for inserting the quick-acting plate, and the inner end portion of the quick-acting plate is inserted into the open groove and fixedly connected by a fixing pin.

[0008] As a further improvement, the inner end portion of the quick-acting plate is inserted into the open slot and fixedly connected via at least two fixing pins.

[0009] As a further improvement, a step-shaped groove is provided at the lower portion of the outer end portion of the quick-acting plate, which abuts against the limit pin.

[0010] Further improvement, the upper part of the action plate is arranged into a step-like structure, the rolling plane is located at the high step part, the upper part of the axial through hole is located at the low step part, the upper part of the quick-acting plate is higher than the low step part and lower than the high step part, and the two ends of the low step part are provided with guide opening grooves for the movement of the quick-acting plate.

[0011] As a further improvement, the bottom of the axial through hole is provided with a guide groove corresponding to the bottom of the quick-acting plate.

[0012] As a further improvement, an observation port for observing the state of the compression spring is provided in the middle of the low step portion.

[0013] As a further improvement, a wear-resistant sheet is fixed to the lower surface of the action plate.

[0014] As another improvement of the present invention, the present invention further provides a switch machine, which includes the above-mentioned action plate group mechanism.

[0015] After adopting such a design, the present invention has at least the following advantages:

[0016] The action plate assembly mechanism of the switch machine of the present invention realizes the relative fixed installation of two quick-acting plates by opening an axial through hole on the action plate and adding a compression spring in the two guide shafts. The result is an action plate assembly structure with few parts, simple mechanical structure of each part, easy processing, simple assembly process, and high integration. The two quick-acting plates are softly connected through a compression spring in the middle and move axially relative to each other in the axial through hole. The structure has a guide self-adjustment function and is not easy to get stuck, thereby effectively realizing the unlocking, switching and locking actions of the contact group of the switch machine.

[0017] The coordination of the limit pin and the stepped slot ensures the limited movement of the quick-acting plate, preventing it from falling out of the axial through-hole under the action of the compression spring. Furthermore, the provision of the guide opening slot and the guide groove better ensures the axial movement of the quick-acting plate, prevents radial swing, and enhances the quick-acting effect of the quick-acting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0019] Figure 1 It is a three-dimensional structural diagram of the action plate group mechanism of the switch machine of the present invention.

[0020] Figure 2 It is a structural front view of the action plate group mechanism of the switch machine of the present invention.

[0021] Figure 3 It is a top view of the structure of the action plate group mechanism of the switch machine of the present invention.

[0022] Figure 4 yes Figure 3 Sectional view along line AA.

[0023] Figure 5 It is a structural front exploded view of the action plate group mechanism of the switch machine of the present invention.

[0024] Figure 6It is a three-dimensional exploded view of the action plate group mechanism of the switch machine of the present invention.

[0025] Figure 7 It is a three-dimensional exploded view of the action plate group mechanism of the switch machine of the present invention.

[0026] Figure 8 Schematic diagram of the switch mechanism's left-side unlocking, switching, and right-side locking processes using the operating plate assembly. 8a shows the operating plate in an inactive state; 8b shows the operating plate moving to the left, unlocking the left-side contact assembly; 8c shows the operating plate moving to the left, switching; and 8d shows the operating plate continuing to move to the left, locking the right-side contact assembly. DETAILED DESCRIPTION

[0027] The action plate group mechanism of this embodiment is an improvement on the action plate group mechanism in the existing switch machine. Other structures in the switch machine, such as the locking iron that drives the action plate to move, the left contact group and the right contact group that act on the two quick-acting plates respectively, as well as the left contact roller and the left contact frame tip of the left contact group, and the right contact roller and the right contact frame tip of the right contact group are all existing structures and will not be described in detail in this application.

[0028] Refer to the attached Figures 1 to 7 As shown, the actuating plate assembly mechanism of the switch machine of this embodiment includes an actuating plate 1, two quick-acting plates 2, two guide shafts 3 and a compression spring 4.

[0029] In this embodiment, the actuating plate 1 is an elongated structure with a rolling surface 11 on the top and ramps 12 on both ends. A fixing plate 13 is located at the bottom of the elongated structure, which is connected to the locking iron in the switch machine. An axial through-hole 14 is defined in the center of the elongated structure. Two quick-acting plates 2, two guide shafts 3, and a compression spring 4 are positioned within this axial through-hole 14. The inner ends of the two guide shafts 3 each have guide holes 32 for the compression spring 4 to extend through. The two quick-acting plates 2 are connected to the outer ends of the two guide shafts 3, forming a sequential connection of left-side quick-acting plate, left-side guide shaft, compression spring, right-side guide shaft, and right-side quick-acting plate. Stoppers are located at both ends of the axial through-hole 14 to prevent the quick-acting plate 2 from disengaging from the compression spring 4. Furthermore, the upper portions of the two quick-acting plates 2 protrude from the surface of the ramps 12, facilitating interaction between the quick-acting plates 2 and the tip of the contact frame.

[0030] Specifically, in this embodiment, the limiting mechanisms at both ends of the axial through hole 14 use limiting pins 15 that are axially perpendicular to the axial through hole 14. A stepped slot 21 abutting against the limiting pin 15 is provided at the lower portion of the outer end of the quick-acting plate 2.

[0031] An opening slot 31 for inserting the quick-acting piece 2 is formed at the outer end of the guide shaft 3 , and the inner end of the quick-acting piece 2 is inserted into the opening slot 32 and fixedly connected via a fixing pin 33 .

[0032] In order to ensure a secure connection, the inner end of the quick-acting plate 2 is inserted into the open slot 31 of the guide shaft 3 and fixedly connected via at least two fixing pins 33 .

[0033] In a further improvement, the upper portion of the actuating plate 1 is configured as a stepped structure, with the rolling plane 11 located on the high step portion, the upper portion of the axial through hole 14 located on the low step portion, and the upper surface of the quick-acting plate 2 being higher than the surface of the low step portion but lower than the surface of the high step portion. Guide openings 16 for movement of the quick-acting plate 2 are provided at both ends of the low step portion.

[0034] In addition, the bottom of the axial through hole 14 is provided with a guide groove 17 corresponding to the bottom of the quick-acting piece 2. In this way, under the guidance of the guide opening groove 16 and the guide groove 17 on the movement of the quick-acting piece 2, the axial movement of the quick-acting piece can be effectively guaranteed and its radial movement can be prevented.

[0035] In addition, an observation port 18 for observing the compression state of the compression spring 4 is provided in the middle of the low step portion, which facilitates observation of the compression state of the compression spring and ensures normal axial movement of the guide shaft 3 and the quick-acting plate 2.

[0036] In this embodiment, a wear-resistant sheet 10 is fixed to the lower surface of the action plate 1. The wear-resistant sheet 10 is fixedly embedded in a groove 19 on the lower surface of the action plate 1. The wear-resistant sheet 10 can effectively resist wear during the relative movement between the action plate 1 and other components.

[0037] As attached Figure 8 As shown, the above-mentioned action plate group mechanism can realize the unlocking of the left contact group of the switch machine, the locking of the right contact group and the conversion process. The specific process is:

[0038] When the left contact group of the switch machine is unlocked, the actuating plate 1 moves to the left under the drive of the locking iron, and the left contact roller 5 of the switch machine moves upward along the left climbing slope 12 of the actuating plate 1. The contact frame tip 6 of the switch machine drives the left quick-acting plate 2 to compress the compression spring 4 and move to the right. At the same time, the left contact frame tip 6 is continuously raised as the left contact roller 5 rises on the climbing slope. When the contact roller 5 reaches the rolling plane 11 of the actuating plate 1, the contact frame tip 6 disengages from the quick-acting plate 2, that is, the left contact frame tip 6 rises to the upper plane of the quick-acting plate 2 and forms a certain gap with it. The quick-acting plate 2 is quickly reset under the action of the compression spring 4 and is blocked by the limit pin 15. The locking iron continues to move the actuating plate 1 to the left for a certain distance before stopping, completing the unlocking and switching process of the left contact group of the switch machine.

[0039] During the unlocking and switching process of the left contact group of the switch machine, the right contact roller 7 is always in contact with the rolling plane 11 of the action plate 1 and rotates and moves along with the movement of the action plate 1 .

[0040] When the right contact group of the switch machine needs to be locked, the locking iron drives the action plate 1 to continue to move to the left. When the right contact roller 7 disengages from the rolling plane 11 on the action plate 1, the right contact frame tip 8 contacts the right quick-acting piece 2, and the action plate 1 continues to move to the left until the right contact frame tip 8 disengages from the right quick-acting piece 2. The action stops, and the right contact group of the switch machine is locked.

[0041] On the contrary, when the right contact group of the switch is unlocked and the left contact group is locked, the movement of the action plate group is exactly the opposite of the above process, that is, the action plate 1 is moved to the right under the drive of the locking iron, which can realize the unlocking and switching of the right contact group of the switch and the locking of the left contact group.

[0042] In the description of the present invention, it should be noted that the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Those skilled in the art can make some simple modifications, equivalent changes or modifications based on the technical content disclosed above, which all fall within the scope of protection of the present invention.

Claims

1. An action plate group mechanism of a switch machine, characterized in that: The invention comprises an action plate, a quick-acting piece, a guide shaft and a compression spring, wherein the action plate adopts a long strip structure with a rolling plane on the upper part and climbing inclined surfaces at both ends, and a fixing plate for connecting with the locking iron in the switch machine is provided at the bottom of the long strip structure, and an axial through hole is provided in the center of the long strip structure, and two quick-acting pieces, two guide shafts and the compression spring are provided in the axial through hole, and the inner ends of the two guide shafts are provided with guide holes for the compression springs to extend into, and the two quick-acting pieces are respectively connected to the outer ends of the two guide shafts, and limiting mechanisms are further provided at both ends of the axial through hole to prevent the quick-acting piece from disengaging from the axial through hole under the action of the compression spring, and the upper parts of the quick-acting pieces protrude from the surface of the climbing inclined surface, and the action plate is When the locking iron moves to the left, the left contact roller of the switch machine moves upward along the left climbing slope of the action plate, and the tip of the contact frame of the switch machine drives the left quick-acting piece to compress the compression spring and move to the right. When the contact roller reaches the rolling plane of the action plate, the tip of the contact frame disengages from the quick-acting piece, and the quick-acting piece quickly resets under the action of the compression spring, and the locking iron continues to move the action plate to the left until the tip of the right contact frame of the switch machine disengages from the right quick-acting piece, thereby unlocking, switching and locking the left contact group of the switch machine. On the contrary, when the action plate moves to the right under the drive of the locking iron, the right contact group of the switch machine is unlocked, switched and locked.

2. The action plate assembly mechanism according to claim 1, characterized in that: The limiting mechanisms at both ends of the axial through hole adopt limiting pins that are axially perpendicular to the axial through hole.

3. The action plate assembly mechanism according to claim 2, characterized in that: An open slot for inserting the quick-acting piece is formed at the outer end of the guide shaft, and the inner end of the quick-acting piece is fixedly connected via a fixing pin after being inserted into the open slot.

4. The action plate assembly mechanism according to claim 3, characterized in that: The inner end portion of the quick-acting plate is inserted into the open slot and fixedly connected via at least two fixing pins.

5. The action plate assembly mechanism according to claim 2, characterized in that: A step-shaped slot abutting against the limiting pin is provided at the lower portion of the outer end portion of the quick-acting piece.

6. The action plate assembly mechanism according to any one of claims 1 to 5, characterized in that: The upper part of the action plate is arranged into a stepped structure, the rolling plane is located at the high step part, the upper part of the axial through hole is located at the low step part, the upper part of the quick-acting plate is higher than the low step part and lower than the high step part, and the two ends of the low step part are provided with guide opening grooves for the quick-acting plate to move.

7. The action plate assembly mechanism according to claim 6, characterized in that: The bottom of the axial through hole is provided with a guide groove corresponding to the bottom of the quick-acting plate.

8. The action plate assembly mechanism according to claim 6, characterized in that: An observation port for observing the state of the compression spring is also provided in the middle of the low step portion.

9. The action plate assembly mechanism according to claim 1, characterized in that: A wear-resistant sheet is fixed on the lower surface of the action plate.

10. A switch machine, characterized in that: The switch machine includes the actuating plate assembly mechanism according to any one of claims 1 to 9.

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