CN215868853U

CN215868853U - Electromagnet for charging high-speed rail

Info

Publication number: CN215868853U
Application number: CN202121274795.7U
Authority: CN
Inventors: 郭超; 田传保; 邹彧
Original assignee: Kendrion Electromagnetic Technology China Co ltd
Current assignee: Kendrion Electromagnetic Technology China Co ltd
Priority date: 2021-06-08
Filing date: 2021-06-08
Publication date: 2022-02-18
Anticipated expiration: 2031-06-08

Abstract

The utility model discloses an electromagnet for charging a high-speed rail, which comprises a frame and an armature arranged in the frame; two coils are arranged on the periphery of the armature, and both the two coils are positioned in the frame; the coil is electrically connected with a lead, and the lead extends to the outer side of the frame; a permanent magnet is arranged between the two coils; the inner end of the armature is fixed with a connecting shaft, and the free end of the connecting shaft penetrates through the armature and the frame and is connected with the output end; the fixed end of the connecting shaft is connected with an input end; the periphery cover of input is equipped with elastic component, and elastic component is located the armature outside and is connected with one of them terminal surface of armature. The utility model has the beneficial effects that: the signal is stable, the armature is driven to move through the coil to drive the high-speed rail connecting system to be in contact with a contact network, the adverse conditions such as poor contact or power failure in the charging process are avoided under the action of the permanent magnet, the signal is ensured to be timely and effectively output, and the signal is not influenced by abrasion; the protection is high, and the noise is little, has increased total output power, has improved the protection level.

Description

Electromagnet for charging high-speed rail

Technical Field

The utility model belongs to the technical field of machine manufacturing, and particularly relates to an electromagnet for charging a high-speed rail.

Background

The high-speed rail power supply mode in China mostly adopts a contact net, and is a power transmission line which is erected along the overhead of a railway and supplies power to an electric locomotive, and current relied on by the running of a high-speed rail train is transmitted through the contact net at the upper end of the locomotive. However, once the contact system is powered off or the pantograph of the train is in poor contact with the contact system, the power supply of the train is affected, and particularly, the timeliness and the effectiveness of charging are very important along with the continuous improvement of the speed of the high-speed rail.

At present, a pneumatic actuating mechanism is mostly adopted as a rotating mechanism in a pantograph, but the pneumatic actuating mechanism utilizes compressed air to push an adjusting valve to act, the pressure value of the pneumatic actuating mechanism is fixed and unchanged, poor contact or power failure is easily caused when abrasion exists between the pantograph and a contact network, the electric signal stability of the pneumatic actuating mechanism is poor, the pressure grade of most pneumatic actuating mechanisms is not high, the total output force is not too large, and large exhaust noise exists.

In order to solve the above problems, it is an important technical problem to be solved by those skilled in the art to design a electromagnet for charging a high-speed rail.

SUMMERY OF THE UTILITY MODEL

The present invention has been made to solve the above-mentioned problems occurring in the prior art, and an object of the present invention is to provide a high-speed electromagnet for charging.

The purpose of the utility model is realized by the following technical scheme:

the electromagnet for charging the high-speed rail comprises a frame and an armature arranged in the frame; two coils are arranged on the periphery of the armature, and the two coils are both positioned in the frame; the coil is electrically connected with a lead, and the lead extends to the outer side of the frame; a permanent magnet is arranged between the two coils; a connecting shaft is fixed at the inner end of the armature, and the free end of the connecting shaft penetrates through the armature and the frame and is connected with an output end; the fixed end of the connecting shaft is connected with an input end; the periphery cover of input is equipped with elastic component, elastic component runs through armature and with the stiff end butt of connecting axle.

Preferably, a gasket is further arranged in the frame, is positioned between the armature and the output end, and is coaxially arranged with the connecting shaft; the maximum moving distance of the armature is equal to the distance between the gasket and the armature.

Preferably, a bushing is coaxially arranged on one side of the gasket, which is far away from the armature; the inner diameter of the bushing is equivalent to the diameter of the connecting shaft, and the outer diameter of the bushing is smaller than the diameter of the first gasket.

Preferably, the elastic component at least comprises a spring, and one end of the spring is fixedly connected with the outer side of the armature; the input end penetrates through the spring and is fixedly connected with the connecting shaft through a bolt.

Preferably, the two coils are respectively arranged in two coil brackets, and the two coil brackets are located at two ends of the permanent magnet.

Preferably, the frame includes a first portion for placing one of the coils, a second portion for placing the permanent magnet, and a third portion for placing the other of the coils.

The technical scheme of the utility model has the advantages that:

the signal is stable, the armature is driven to move through the coil to drive the high-speed rail connecting system to be in contact with a contact network, the adverse conditions such as poor contact or power failure in the charging process are avoided under the action of the permanent magnet, the signal is ensured to be timely and effectively output, and the signal is not influenced by abrasion;

the protection performance is high, compared with the exhaust noise generated in the using process of a pneumatic actuating mechanism, the electric actuating mechanism adopted by the utility model greatly reduces the noise, increases the total output force, improves the protection level and is suitable for severe environment;

the vibration sense is reduced, and the armature is prevented from colliding with a guide sleeve or other components when moving to the limit through the retaining force generated by the permanent magnet, so that the service life of the electromagnet is prolonged;

the magnetism is strong; the utility model adopts a double-coil structure, increases the number of coils, increases the number of turns of the coils, improves the magnetic force of the electromagnet and enhances the total output force when the electromagnet is electrified.

Drawings

FIG. 1: a first directional top view of a preferred embodiment of the present invention;

FIG. 2: a second cross-sectional view of the preferred embodiment of the present invention.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. The embodiments are merely exemplary for applying the technical solutions of the present invention, and any technical solution formed by replacing or converting the equivalent thereof falls within the scope of the present invention claimed.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

As shown in fig. 1 to 2, the present invention discloses a high-speed rail charging electromagnet, which comprises a frame 8 and an armature 1 arranged in the frame 8. The frame 8 is made up of a first part 81, a second part 82 and a third part 83. The armature 1 is provided with two coils 2 at its periphery, and the two coils 2 are located in the first and

third portions

81 and 82 of the frame 8. The coil 2 is electrically connected with a wire 11, and the wire 11 extends to the outer side of the frame 8 and is electrically connected with an external power supply. The external power source may be any device capable of converting energy into electric energy disclosed in the prior art, and is not described herein.

As shown in fig. 1, the positive and negative poles of the two coils 2 are opposite. In order to ensure that the position of the coil 2 is kept unchanged during the use process, two coils 2 are respectively arranged in two coil brackets 21, and the two coil brackets 21 are arranged in the frame 8. A permanent magnet 3 is arranged between the two coils 2, i.e. the permanent magnet 3 is located between the two coil supports 21 and the permanent magnet 3 is located in the second section 82 of the frame 8.

As shown in fig. 1 or fig. 2, a connection shaft 6 is fixed at an inner end of the armature 1, and a free end of the connection shaft 6 penetrates through the armature 1 and the frame 8 and is connected with an output end 7. The output 7 is connected to a high-speed rail connection system (not shown in the figure). A gasket 61 is further arranged in the frame 8, and the gasket 61 is positioned between the armature 1 and the output end 7 and is coaxial with the connecting shaft 6.

A bush 62 is arranged on one side of the gasket 61, which is far away from the armature 1, the free end of the connecting shaft 6 sequentially penetrates through the armature, the gasket 61 and the bush 62; and drives the armature 1 to move along the axial direction of the bushing 62, wherein the maximum moving distance of the armature 1 is equal to the distance between the gasket 61 and the armature 1. The inner diameter of the bushing 62 corresponds to the diameter of the connecting shaft 6, and the outer diameter thereof is smaller than the diameter of the spacer 61. Of course, the spacer 61 may be provided integrally with the bush 62.

In the first state, the lead 11 is electrified in the forward direction, the coil 2 is electrified in the forward direction, and magnetic force is generated to drive the armature 1, the connecting shaft 6 and the output end 7 to move in the forward direction (move to the right). At this time, the magnetic repulsive force of the permanent magnet 3 is gradually reduced, so that the end surface of the armature 1 gradually abuts against the first spacer 612 until the armature 1 contacts the spacer 61. When the armature 1 is in contact with the first gasket 612, the permanent magnet 3 provides a holding force, so that the armature 1 is prevented from impacting the first gasket 612 to cause damage, and a buffering and vibration damping effect is provided. At this moment, even if the conducting wire 11 is powered off, the output end 7 can trigger the high-speed rail connecting system to continue to operate for 3mm under the retaining force of the permanent magnet 3, so that the high-speed rail connecting system is fully connected with a contact net for charging, the timeliness and the effectiveness of charging are guaranteed, and the signal stability and the protection level are improved.

The fixed end of connecting axle 6 is connected with input 5, promptly input 5 runs through armature 1, and with through bolt fixed connection between the connecting axle 6. The periphery cover of input 5 is equipped with and runs through armature 1 and with the elastic component that the stiff end of connecting axle 6 is connected, elastic component includes spring 4 at least, spring 4 is located the spring chamber, and its free end runs through armature 1, and with the bolt outside butt of the 6 stiff ends of connecting axle. The spring cavity and the spring 4 both penetrate through the armature 1 and are arranged coaxially with the armature 1. Through the elastic component, the vibration sense of the armature can be effectively reduced in the resetting process of the armature 1, and the buffering effect is achieved.

In the second state, the conducting wire 11 is electrified reversely, the coil 2 is electrified reversely, and the magnetic force generated at the moment drives the armature 1, the input end 5, the connecting shaft 6 and the output end 7 to move reversely (move leftwards). Meanwhile, the magnetic repulsion of the permanent magnet 3 gradually increases, that is, the armature 1 gradually separates from the first spacer 612 until all the components are reset. In the resetting process, the spring 4 drives the armature 1 to move leftwards and provides a holding force together with the permanent magnet 3, so that the vibration sense caused by resetting is reduced, and the damage is avoided.

The working process of the utility model is briefly described as follows:

the lead 11 is electrified in the positive direction, the coil 2 is electrified in the positive direction, magnetic force is generated, and the armature 1, the input end 5, the connecting shaft 6 and the output end 7 are driven to move towards the output end 7 simultaneously with the acting force of the spring 4 until the armature 1 is abutted against the gasket 61; and triggering the high-speed rail connecting system to contact with a contact network, and charging. The permanent magnet 3 provides a holding force at the moment when the armature 1 is in contact with the gasket 61, so that damage to parts caused by hard contact is avoided;

the lead 11 is electrified reversely, the coil 2 is electrified reversely, magnetic force is generated, the magnetic force is larger than the acting force of the spring 4 at the moment, the armature 1 is driven to overcome the acting force of the spring 4, and the input end 5, the connecting shaft 6 and the output end 7 are driven to move towards the input end 5 until all the components are reset; disconnecting the high-speed rail connection system from the contact network; the spring 4 and the permanent magnet 3 provide holding force in the resetting process, and damage to parts is avoided.

The utility model has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the utility model.

Claims

1. High-speed railway charges and uses electromagnet, its characterized in that: comprises a frame (8) and an armature (1) arranged in the frame (8); two coils (2) are arranged on the periphery of the armature (1), and the two coils (2) are both positioned in the frame (8); the coil (2) is electrically connected with a lead (11), and the lead (11) extends to the outer side of the frame (8); a permanent magnet (3) is arranged between the two coils (2); a connecting shaft (6) is fixed at the inner end of the armature (1), and the free end of the connecting shaft (6) penetrates through the armature (1) and the frame (8) and is connected with an output end (7); the fixed end of the connecting shaft (6) is connected with an input end (5); elastic component is established to the periphery cover of input (5), elastic component runs through armature (1) and with the stiff end butt of connecting axle (6).

2. The electromagnet for charging a high speed rail according to claim 1, wherein: a gasket (61) is further arranged in the frame (8), and the gasket (61) is positioned between the armature (1) and the output end (7) and is coaxially arranged with the connecting shaft (6); the maximum moving distance of the armature (1) is equal to the distance between the gasket (61) and the armature (1).

3. The electromagnet for charging a high speed rail according to claim 2, wherein: a bushing (62) is coaxially arranged on one side, away from the armature (1), of the gasket (61); the inner diameter of the bush (62) is equivalent to the diameter of the connecting shaft (6), and the outer diameter thereof is smaller than the diameter of the first washer (61).

4. A high-speed rail charging electromagnet according to claim 3, wherein: the elastic component at least comprises a spring (4), and one end of the spring (4) is fixedly connected with the outer side of the armature (1); the input end (5) penetrates through the spring (4) and is fixedly connected with the connecting shaft (6) through a bolt.

5. The electromagnet for charging a high speed rail according to claim 4, wherein: the two coils (2) are respectively arranged in the two coil brackets (21), and the two coil brackets (21) are positioned at two ends of the permanent magnet (3).

6. The electromagnet for charging a high speed rail according to claim 5, wherein: the frame (8) comprises a first portion (81) in which one of the coils (2) is placed, a second portion (82) in which the permanent magnet (3) is placed, and a third portion (83) in which the other coil (2) is placed.