A railway switch machine with a shifting contactor

Abstract

The utility model relates to a railway with shift contactor in switch machine, its characterized in that: including switch seat (3), switch cover (18), switch spring leaf subassembly, external connection conductive column, inner connection conductive column, electrically connected piece (4), reset subassembly, switch seat (3) includes the adjusting assembly for adjusting the jack, and adjusting assembly is by jack (21), spring (20), adjusting fastener and the inlay piece (23) of installation adjusting jack structure composition, and there is electrically connected piece (4) in switch seat (3) intercommunication conduction, this railway with shift contactor for switch machine product structure is simple, and the reliability is high, can guarantee signal stable transmission, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the manufacture and modification of auxiliary devices for railway vehicles, and in particular to a shift contactor in a railway switch machine. Background Technology

[0002] With the vigorous development and multiple speed increases of my country's railways, the requirements for the safety and service life of turnout equipment are becoming increasingly stringent. Therefore, it is necessary to develop safer, more reliable, and more rationally structured related products, so as to serve the safe operation of trains with their inherently reasonable and excellent performance and external features that facilitate assembly, observation, and maintenance.

[0003] The shift contactor is an important component of the ZD6 switch machine. Its contacts are connected in series in the indication circuit of the turnout control system. After the switch machine is switched to the correct position and the turnout is locked, the indication circuit is activated, indicating the position status of the turnout, which is consistent with the actual position of the turnout. If the actual position of the movable part of the turnout is out of place, causing the relative displacement between the switch machine's actuating rod and the rack block to exceed the required distance, the push rod in the rack block will be lifted, causing the normally closed contact of the shift contactor to open, thereby disconnecting the indication circuit. The contact will not reconnect the indication circuit without manual restoration, thus ensuring the safety of railway transportation.

[0004] The current product mounts the main contacts, auxiliary contacts, first terminal, second terminal, and reset button of the shift contactor all inside the switch housing. Assembling, adjusting, and cleaning the contacts within the confined space of the switch housing is very inconvenient, even difficult. This is especially true for the core components of the shift contactor, the main contacts and auxiliary contacts, whose spatial relative positions are crucial. However, they are positioned by multiple partitions inside the switch housing, and because they are connected to the first and second terminals, the assembly process is complex, prone to interference, and it is impossible to observe whether their positions are aligned or to measure their relative height. In other words, there is no common, directly measurable assembly reference for them.

[0005] Secondly, since the main contacts, auxiliary contacts, first terminal, second terminal, and reset button are all installed inside and outside the switch cover, the cover structure is complex and stress is concentrated. In addition, the force applied to the fasteners during assembly and maintenance causes the switch cover to crack frequently. As a result, most manufacturers have changed the cover to an opaque and stronger material. This, in turn, affects the observation of the internal mechanism's operation and causes great inconvenience to assembly and maintenance. Summary of the Invention

[0006] The purpose of this utility model is to provide a shift contactor for railway switch machines that has a simple product structure, high reliability, can ensure stable signal transmission, and has a long service life.

[0007] To achieve the above-mentioned technical objectives, the technical solution of this utility model is as follows: a shift contactor for a railway switch machine is provided, characterized in that it includes a switch base, a switch cover, a switch spring assembly, an external conductive post, an internal conductive post, a connecting piece, an adjustment assembly, and a reset assembly; the switch base includes an adjustment assembly for adjusting the push rod, the assembly including the push rod, a spring, an adjustment fastener, and an insert for mounting the adjustment push rod structure; The switch base contains a conductive connecting piece, which is connected to the inner and outer conductive posts and is pressed into the switch base. A switch assembly is mounted on the top surface of the switch holder. This switch assembly consists of a main spring and a secondary spring. A reset button assembly is installed on the switch cover, which includes a lever, a spring, and a limit knob.

[0008] The switch base has three mounting holes for fixing; the top surface has a narrow-edged boss that surrounds the switch cover for sealing and protecting it; the top surface of the switch base has a corresponding concave shape for installing a sealing ring; and there is a boss for positioning the main spring and the auxiliary spring, with a limiting step on the surface of the boss for positioning the main and auxiliary springs.

[0009] The switch holder has two connecting plates inside, symmetrically arranged on the left and right, which are connected to the inner and outer conductive posts respectively. Their function is to lead the current of the main and auxiliary springs connected to the two inner conductive posts to the outer conductive posts on both sides. The outer conductive posts have two functions: one is to fix the switch box, and the other is to connect the control circuit.

[0010] Compared with existing technologies, this utility model simplifies the overall structure by changing the switch base structure, transferring the components assembled inside the cover to the switch base surface, and moving the terminals to both sides of the switch box. This gives the terminals dual functions: securing the switch box and connecting the circuit. The installation of the core component, the spring assembly, is moved from the confined space inside the switch box to the switch base surface, allowing for unobstructed operation. This greatly simplifies the assembly process and maintenance, improves efficiency, ensures quality, and makes the interior of the switch box cleaner, providing a clear view of the internal components' operation. Furthermore, it solves the problem of stress concentration caused by the complex structure of the switch box, which leads to cracking during fastening.

[0011] The beneficial effects of this utility model are reflected in: 1. Design rationality: The height positioning of the main and auxiliary springs has a common reference, and the two mounting bosses that can measure the height difference ensure the pressure of the spring contact points; the mounting bosses of the main and auxiliary springs and the limiting bosses on their surfaces ensure the uniqueness of the horizontal and vertical positioning of the main and auxiliary springs, making the installation of the main and auxiliary springs extremely simple.

[0012] In addition, since the assembly, adjustment and testing of the dynamic performance of the reeds are carried out without the switch box being installed, it makes the comprehensive inspection of the performance of the shift contactor extremely simple. After the test is passed, only the switch cover needs to be installed.

[0013] 2. Improved reliability: As mentioned above, the rationality of the structure, the simplification and convenience of assembly, and the ease of factory testing and on-site maintenance ensure the reliability of the product and provide a platform for subsequent product performance improvement.

[0014] 3. Economic efficiency: As mentioned above, the rationality of the structure, the simplification of assembly and the convenience of maintenance reduce production costs and improve efficiency.

[0015] The present invention will be further described below with reference to the accompanying drawings of the embodiments. Attached Figure Description

[0016] Figure 1A This is a structural schematic diagram of the moving contact assembly of this utility model; Figure 1B This is a schematic diagram of the main spring plate mounting protrusion 27 and the auxiliary spring plate mounting protrusion 28, the main spring plate limiting protrusion 29 and the auxiliary spring plate limiting protrusion 30 provided on the switch body.

[0017] Figure 2 This is the outline drawing of this utility model.

[0018] In the diagram, 1. Main spring; 2. Secondary spring; 3. Switch base; 4. Connecting piece; 5. First external conductive post; 6. First knob; 7. Inner conductive post of secondary spring; 8. Locking nut; 9. Limit knob; 10. Reset lever; 11. Spring; 12. Elastic frame; 13. Pressure plate; 14. Locking nut; 15. Inner conductive post of main spring; 16. Second knob; 17. Second external conductive post; 18. Switch cover; 19. Sealing gasket; 20. Spring; 21. Push rod; 22. Trigger push rod; 23. Insert; 24. Spring washer; 25. Locking nut; 26. Adjusting screw sleeve; 27. Main spring mounting protrusion; 28. Secondary spring mounting protrusion; 29. ​​Main spring limiting protrusion; 30. Secondary spring limiting protrusion. Detailed Implementation

[0019] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but are not all the embodiments and do not constitute a limitation on the present invention.

[0020] like Figure 1A , Figure 1B , Figure 2As shown, this utility model relates to a shift contactor in a railway switch machine, characterized by including a switch base 3, a switch cover 18, a switch spring assembly, an external conductive post, an internal conductive post, a connecting piece 4, and a reset assembly; The switch base 3 includes an adjustment assembly for adjusting the push rod. The adjustment assembly consists of a push rod 21, a spring 20, an adjusting screw sleeve 26, and an insert 23 for mounting the adjusting push rod structure. The switch base 3 has a conductive connecting piece 4 inside. A switch assembly is installed on the top surface of the switch base 3. The switch assembly consists of a main spring 1 and a secondary spring 2. The top surface is further provided with a narrow edge boss that surrounds the four sides, which fits with the bottom of the switch cover 18. A sealing gasket 19 is installed on the surface of the boss to achieve a sealed connection between the switch base 3 and the switch cover 18. The top surface of the switch base 3 is provided with a main spring mounting protrusion 27 and a secondary spring mounting protrusion 28; The bottom surface of the main spring 1 is attached to the main spring mounting protrusion 27 and fixed by bolts and matching lock nuts 14; the side surface of the main spring 1 is attached to the main spring limiting protrusion 29 to restrict horizontal rotation. The bottom surface of the auxiliary spring 2 is attached to the auxiliary spring mounting protrusion 28 and is also fixed by bolts and matching lock nuts 8; its side surface is attached to the auxiliary spring limiting protrusion 30 to achieve horizontal limiting. The bottom of the switch base 3 has 3 mounting holes for mounting on the switch machine body.

[0021] The switch base 3 contains two symmetrical connecting pieces 4. The connecting pieces 4 are made of copper, and one end of them is connected to the conductive post 15 in the main spring and the conductive post 7 in the auxiliary spring through threads. The other end of the electrode 4 is connected to the first external conductive post 5 and the second external conductive post 17 by welding. The electrode 5 and the second external conductive post 17 are fully threaded screws.

[0022] The first external conductive post 5 and the second external conductive post 17 extend laterally through both sides of the switch base 3. The outer ends are connected to the external control circuit through the first knob 6, the second knob 16 and fasteners. The inner ends pass through the switch base 3 and are welded to the connecting piece 4. At the same time, the first external conductive post 5 and the second external conductive post 17 are fixed by the first knob 6, the second knob 16 and fasteners through the mounting holes on both sides of the switch cover 18, realizing the dual function of fixing the switch cover 18 and conducting the circuit.

[0023] The reset assembly includes a reset lever 10 and a spring 11. The reset assembly is mounted on the switch cover 18 to realize the reset function.

[0024] In particular, the core of this utility model is to transfer the current of the main spring 1 and the auxiliary spring 2 to the first external conductive post 5 and the second external conductive post 17 on both sides through the connecting piece 4 on each side. The first external conductive post 5 and the second external conductive post 17 not only serve to transfer the current, but also serve to fix the switch cover 18.

[0025] The above structure enables the height of the main spring 1 and the auxiliary spring 2 to be positioned and directly measured (based on the top surfaces of the main spring mounting protrusion 27 and the auxiliary spring mounting protrusion 28), and the horizontal position is also uniquely determined, solving the problem of uncertain and unmeasurable positioning in existing products.

[0026] The side of the switch base 3 is equipped with an adjustment component for controlling the contact state of the main spring 1 and the auxiliary spring 2, and the specific connection is as follows: The insert 23 in the adjustment assembly is pre-pressed into the switch base 3, and an adjustment screw sleeve 26 is provided inside. The adjustment screw sleeve 26 and the insert 23 are connected by threads, and the axial position can be adjusted by rotation.

[0027] The push rod 21 in the adjustment assembly passes through the hole of the switch seat 3, and a spring 20 passes through it. One end of the spring 20 abuts against the bottom of the hole. The bottom of the push rod 21 contacts the trigger push rod 22, and the other end of the push rod 21 corresponds to the corresponding position of the main spring 1. When the switch machine is out of position, the push rod 21, under the action of the trigger push rod 22, lifts the main spring 1 to separate it from the auxiliary spring 2 and disconnects the circuit.

[0028] The switch cover 18 is a transparent plastic part, and the reset assembly is installed on the top surface.

[0029] The reset lever 10 is inserted into the hole of the switch cover 18, with its bottom end corresponding to the reset position of the main spring 1; the spring 11 is placed between the limit knob 9 and the switch cover 18, so that the reset lever 10 is normally in the raised state; the limit knob 9 is threadedly connected to the mounting post on the top surface of the switch cover 18.

[0030] The switch cover 18 is fastened to the closed narrow edge protrusion on the top surface of the switch base 3 and is fixed in the following way: The mounting holes on both sides of the switch cover 18 are respectively fitted onto the middle threaded sections of the first external conductive post 5 and the second external conductive post 17, and are fixed by tightening the first knob 6, the second knob 16 and the fasteners at the outer ends of the external conductive posts; the bottom of the switch cover 18 is tightly fitted with the sealing gasket 19 of the switch base 3 to ensure that the inside is dustproof and waterproof.

[0031] The working process of this utility model is as follows: When the switch machine is working normally (the turnout is locked in position): the main spring 1 and the auxiliary spring 2 are in contact, and the circuit forms a path through "main spring 1 → main spring inner conductive post 15 → left connecting piece 4 → first outer conductive post 5" and "auxiliary spring 2 → auxiliary spring inner conductive post 7 → right connecting piece 4 → second outer conductive post 17", and outputs the turnout position signal.

[0032] When the turnout is out of position and the displacement of the actuating rod and rack block exceeds the limit, the trigger rod 22 is lifted, pushing the trigger rod 21 to separate the main spring 1 and the auxiliary spring 2, disconnecting the circuit and stopping the output signal; the reset rod 10 needs to be pressed manually to reset the main spring 1 and make contact with the auxiliary spring 2. After releasing the reset rod 10, the reset rod 10 is reset under the action of the spring 11.

[0033] Through the above-mentioned connection relationship, this utility model achieves structural simplification, convenient assembly, and visualization of working status, and solves the problems of uncertain and unmeasurable assembly reference, assembly interference, difficulty in observation, and cracking of switch cover in the prior art.

[0034] It should be noted that the shape of the connecting piece 4 can be varied, but its function remains the same: to connect the main spring 1 and the auxiliary spring 2 with the current through the first conductive post 5 and the second conductive post 17. The mounting boss 27 for the main spring 1 and the mounting protrusion 28 for the auxiliary spring 2 provided on the switch base 3 can take other forms, but their function is to provide a vertical mounting reference plane for the main spring 1 and the auxiliary spring 2.

[0035] The switch base 3 has a main spring mounting protrusion 27 and a secondary spring mounting protrusion 28 on its surface, which are used to mount the main spring 1 and the secondary spring 2, respectively. The main spring mounting protrusion 29 and the secondary spring mounting protrusion 30 can have other forms, but their function is to limit the horizontal mounting of the main spring 1 and the secondary spring 2, making it impossible for the main spring 1 and the secondary spring 2 to rotate horizontally on the mounting protrusion 27 and the secondary spring mounting protrusion 28.

[0036] The connection between the main spring 4 and the conductive post 15 and the conductive post 7 in the secondary spring, as well as the first conductive post 5 and the second conductive post 17, can be in various forms of mechanical connection, including but not limited to threaded connection, pin connection, welding, and a combination of various forms. Any structural deformation that can lead the current of the main spring 15 and the secondary spring 7 to the first and second conductive posts respectively falls within the scope of this patent application.

Claims

1. A shift contactor used in a railway switch machine, characterized in that: Includes switch base (3), switch cover (18), switch spring assembly, external conductive post, internal conductive post, connecting piece (4), and reset assembly; The switch base (3) includes an adjustment assembly for adjusting the push rod. The adjustment assembly consists of the push rod (21), spring (20), adjustment fastener and insert (23) for mounting the adjustment push rod structure. The switch base (3) contains a conductive connecting piece (4). The top surface of the switch base (3) is equipped with a switch assembly, which consists of a main spring (1) and a secondary spring (2); the top surface is further provided with a narrow edge protrusion that surrounds the four sides, which fits with the bottom of the switch cover (18); a sealing gasket (19) is installed on the top surface of the switch base (3) to achieve a sealed connection between the switch base (3) and the switch cover (18); The top surface of the switch base (3) is provided with a main spring mounting protrusion (27) and a secondary spring mounting protrusion (28); The bottom surface of the main spring (1) is attached to the main spring mounting protrusion (27) and fixed by bolts and matching locking nuts (14); the side of the main spring (1) is attached to the main spring limiting protrusion (29) to restrict horizontal rotation; The bottom surface of the auxiliary spring (2) is attached to the auxiliary spring mounting protrusion (28), and is also fixed by bolts and matching lock nuts (14); its side surface is attached to the auxiliary spring limiting protrusion (30) to achieve horizontal limiting; The bottom of the switch base (3) has 3 mounting holes for fixing itself to the switch machine body.

2. The shift contactor used in a railway switch machine according to claim 1, characterized in that: The switch base (3) is pre-pressed with a connecting conductive piece (4), which consists of two symmetrical connecting pieces (4). The connecting pieces (4) are made of copper, and one end of them is fixed to the conductive post (15) inside the main spring and the conductive post (7) inside the secondary spring through a threaded connection. The other end of the galvanized sheet (4) is connected to the first external conductive post (5) and the second external conductive post (17) by welding.

3. A shift contactor for a railway switch machine according to claim 2, characterized in that: The first external conductive post (5) and the second external conductive post (17) extend laterally through both sides of the switch base (3). The outer ends are connected to the external control circuit through the first knob (6), the second knob (16) and fasteners. The inner ends pass through the switch base (3) and are welded to the connecting piece (4). At the same time, the first external conductive post (5) and the second external conductive post (17) are provided with threads in the middle, and are connected to the mounting holes on both sides of the switch cover (18) through threads, so as to realize the dual functions of fixing the switch cover and conducting the circuit.

4. A shift contactor for a railway switch machine according to claim 1, characterized in that: The reset assembly includes a reset lever (10) and a spring (20). The reset assembly is mounted on the switch cover (18) to realize the reset function.

5. A shift contactor for a railway switch machine according to claim 1, characterized in that: The insert (23) in the adjustment assembly is pre-pressed into the switch base (3), and an adjustment sleeve (26) is provided inside. The adjustment sleeve (26) and the insert (23) are connected by threads, and the axial position can be adjusted by rotation.

6. A shift contactor for a railway switch machine according to claim 1, characterized in that: The top rod (21) in the adjustment assembly passes through the hole of the switch seat (3) and has a spring (20) passing through it. One end of the spring (20) abuts against the bottom of the hole. The bottom of the top rod (21) contacts the trigger top rod (22), and the other end of the top rod (21) corresponds to the corresponding position of the main spring (1). When the switch machine is out of position, the top rod (21) lifts the main spring (1) under the action of the trigger top rod (22) so that it separates from the auxiliary spring (2) and disconnects the circuit.

7. A shift contactor for a railway switch machine according to claim 1, characterized in that: The switch cover (18) is a transparent plastic part, and the reset assembly is installed on the top surface.

8. A shift contactor for a railway switch machine according to claim 4, characterized in that: The reset lever (10) is inserted into the hole of the switch cover (18), with its bottom end corresponding to the reset position of the main spring (1); the spring (20) is placed between the limit knob (9) and the switch cover (18), so that the reset lever (10) is normally in the raised state; the limit knob (9) is connected to the mounting post on the top surface of the switch cover (18) by a thread.

9. A shift contactor for a railway switch machine according to claim 1, characterized in that: The switch cover (18) is fastened to the narrow edge protrusion that is closed around the top surface of the switch base (3). The mounting holes on both sides of the switch cover (18) are respectively fitted into the middle threaded sections of the first external conductive post (5) and the second external conductive post (17). The switch cover (18) is fixed by tightening the first knob (6), the second knob (16) and the fasteners at the outer end of the external conductive post. The bottom of the switch cover (18) is tightly fitted to the sealing gasket (19) of the switch base (3) to ensure that the inside is dustproof and waterproof.

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