CN211879311U

CN211879311U - Structure of heavy elastic safety unit

Info

Publication number: CN211879311U
Application number: CN202020943578.1U
Authority: CN
Inventors: 于冬; 柯章弘达; 李庆诗; 刘斌; 王进忠; 刘炜; 吕树远; 张志宇; 赵正元; 夏艳华; 赵兴海; 赵金艳
Original assignee: Shenyang Railway Signal Co Ltd
Current assignee: Shenyang Railway Signal Co Ltd
Priority date: 2019-12-28
Filing date: 2020-05-29
Publication date: 2020-11-06
Anticipated expiration: 2030-05-29
Also published as: CN111430187A; CN111261464A

Abstract

The utility model relates to a heavy elasticity safety unit structure, including coil pack, yoke subassembly, iron core subassembly and return spring, wherein the coil pack is installed in the yoke subassembly, and the iron core subassembly passes the center pin of coil pack, and the upper end is stretched out by the yoke auxiliary of yoke subassembly, and the lower extreme is stretched out by the yoke bottom through-hole of yoke subassembly, installs return spring between lower part extension and the yoke bottom, and return spring is compression state all the time; the coil assembly comprises a coil rack and a coil, wherein the coil is wound on the coil rack, and the bottom end of a hollow shaft column of the coil rack is lengthened and extends into a through hole at the bottom of a yoke of the yoke assembly; the inner part of the coil frame is sleeved with the shape of a positioning block in the yoke assembly. The utility model discloses use railway signal relay field with the heavy elasticity safety unit structure of direct action type and optimize the improvement for heavy elasticity formula structure provides higher shock resistance, and the reliability is high.

Description

Structure of heavy elastic safety unit

Technical Field

The utility model relates to a relay specifically is a heavy elasticity safety unit structure.

Background

At present, a clapper type structure is generally adopted by a railway signal relay. The relay with the clapper structure has poor vibration resistance and obvious contact bounce phenomenon, and is specifically shown in fig. 2.

Fig. 2 is a schematic diagram of a relay with a clapper structure, when a relay coil a is electrified, an armature B drives a pull rod C to act, the pull rod C drives a middle contact D to act, and the middle contact D and a front contact E are closed. When the relay coil A is powered off, the armature B falls down by the gravity of the armature B and the gravity of the weight piece F, and the middle contact D and the rear contact G are closed. When the relay coil A is in a power-off state and the external environment vibrates, the armature B is hardly guaranteed to be stably in a release state, the armature B is easy to malfunction, the rear contact G is separated from the middle contact D, and even the front contact E is contacted with the middle contact D, so that rebound is caused.

In summary, the clapper type structure commonly adopted by the existing railway signal relay has poor vibration resistance, does not have higher reliability, and needs further improvement.

SUMMERY OF THE UTILITY MODEL

To prior art relay's anti vibration performance poor, contact bounce phenomenon obvious etc. not enough, the utility model aims to solve the problem that a can provide higher anti vibration performance, divide disconnected high reliability heavy elasticity safety unit structure is provided.

In order to solve the technical problem, the utility model discloses a technical scheme is:

the utility model relates to a heavy elasticity safety unit structure, including coil pack, yoke subassembly, iron core subassembly and return spring, wherein coil pack installs in the yoke subassembly, and the iron core subassembly passes coil pack's center pin, and the upper end is stretched out by the yoke auxiliary of yoke subassembly, and the lower extreme is stretched out by the yoke bottom through-hole of yoke subassembly, and the spring is returned in the installation between lower part extension and the yoke bottom, and the return spring is compression state all the time.

The coil assembly comprises a coil rack and a coil, wherein the coil is wound on the coil rack, and the bottom end of a hollow shaft column of the coil rack is lengthened and extends into a through hole at the bottom of a yoke of the yoke assembly; the inner part of the coil frame is sleeved with the shape of a positioning block in the yoke assembly.

The yoke assembly comprises a yoke, a yoke accessory and a positioning block, wherein the yoke cover is arranged at the bottom and the side of the coil assembly, and the yoke accessory is arranged at the upper part of the coil assembly and is buckled with the yoke; the positioning block is a hollow cylinder body and is sleeved in the hollow shaft column of the coil assembly, the upper part of the positioning block is arranged in the through hole of the yoke auxiliary part, and the ejector rod of the coil assembly penetrates through the positioning block.

The iron core assembly comprises an iron core and an ejector rod, wherein the ejector rod penetrates through the positioning block, one end of the ejector rod extends out of the yoke auxiliary part from the upper part of the positioning block and is used for mounting the movable contact assembly, and the other end of the ejector rod extends out of the bottom of the positioning block and enters the iron core; the iron core and the positioning block are coaxially arranged and have an axial distance, and the bottom end of the ejector rod extends into the iron core and is fixedly connected with the iron core.

And a magnetic isolation gasket is arranged at the axial distance position between the iron core and the positioning block.

The utility model discloses still have the iron core buffering cover, for the spill structure, fixed mounting will return the spring cover in the inboard in yoke iron bottom.

The utility model discloses still have the plug wire subassembly, including base and inserted sheet, base fixed mounting is in the lateral wall notch of the yoke of yoke subassembly, and the inserted sheet passes base and yoke and is connected with coil assembly's coil electricity in the yoke subassembly, and the inserted sheet is binding post in yoke subassembly outside, is connected with coil control power supply.

The utility model has the following beneficial effects and advantages:

1. the utility model discloses use railway signal relay field with the heavy elasticity safety unit structure of direct action type and optimize the improvement for heavy elasticity formula structure provides higher shock resistance, and the reliability is high.

2. Because the utility model is sleeved with a return spring in a compressed state on the iron core, when the iron core component does not act, the return spring is in a compressed state, when the coil is electrified, the iron core component acts, and the return spring is further compressed; this structure possesses higher anti vibration performance, and the main expression is when the iron core subassembly does not move, and the return spring of compression state can provide sufficient counter-force, guarantees that the iron core subassembly can not lead to the malfunction because of the vibration that external environment arouses, avoids moving contact and stationary contact to contact.

Drawings

FIG. 1 is a schematic view of the structure of the heavy-elastic safety unit of the present invention;

fig. 2 is a schematic structural diagram of a relay with a clapper structure in the prior art.

1 is a coil component, 101 is a coil frame, 102 is a coil, 2 is a wire plugging component, 201 is a base, 202 is a plug-in sheet, 3 is a yoke component, 301 is a yoke, 302 is a yoke accessory, 303 is a positioning block, 4 is an iron core component, 401 is an iron core, 402 is a push rod, 5 is a return spring, 6 is a magnetic isolation gasket, and 7 is an iron core buffer cover; a is a relay coil, B is an armature, C is a pull rod, D is a middle contact, E is a front contact, F is a weight piece, and G is a rear contact.

Detailed Description

The invention will be further explained with reference to the drawings attached to the specification.

As shown in fig. 1, a heavy-elastic safety unit structure includes a coil assembly 1, a yoke assembly 3, an iron core assembly 4 and a return spring 5, wherein the coil assembly 1 is installed in the yoke assembly 3, the iron core assembly 4 passes through a central shaft of the coil assembly 1, an upper end of the iron core assembly is extended out from an iron yoke auxiliary 302 of the yoke assembly 3, a lower end of the iron core assembly is extended out from a through hole at a bottom end of an iron yoke 301 of the yoke assembly 3, the return spring 5 is installed between a lower extended portion and the bottom end of the iron yoke 301, and the return spring 5 is always in a compressed state.

The coil component 1 comprises a coil rack 101 and a coil 102, wherein the coil 102 is wound on the coil rack 101, the bottom end of a hollow shaft column of the coil rack 101 is lengthened and extends into a through hole at the bottom of a yoke 301 of the yoke component 3; the coil frame 101 is internally sleeved with the positioning block 303 in the yoke component 3.

The yoke assembly 3 comprises a yoke 301, a yoke auxiliary 302 and a positioning block 303, wherein the yoke 301 covers the bottom and the side of the coil assembly 1, and the yoke auxiliary 302 is arranged on the upper part of the coil assembly 1 and buckled with the yoke 301; the positioning block 303 is a hollow cylinder, and is sleeved in the hollow shaft column of the coil assembly 1, the upper part of the positioning block 303 is installed in the through hole of the yoke auxiliary 302, and the push rod 402 of the iron core assembly 4 is inserted in the positioning block 303.

The iron core assembly 4 comprises an iron core 401 and a push rod 402, wherein the push rod 402 penetrates through the positioning block 303, one end of the push rod extends out of the yoke auxiliary 302 from the upper part of the positioning block 303 to be used for installing a moving contact assembly, and the other end of the push rod extends out of the bottom of the positioning block 303 to enter the iron core 401; the iron core 401 and the positioning block 303 are coaxially arranged and have an axial distance; the bottom end of the top bar 402 extends into the iron core 401 and is fixedly connected, and in this embodiment, the bottom end of the top bar 402 is riveted with the iron core 401.

And a magnetic isolation gasket 6 is arranged on the iron core 401 at a position axially spaced from the positioning block 303.

The utility model also has an iron core buffer cover 7 which is a concave structure and is fixedly arranged at the bottom of the yoke 301 to cover the return spring 5 at the inner side; meanwhile, the wire inserting assembly 2 can be further arranged and comprises a base 201 and an inserting piece 202, the base 201 is fixedly installed in a notch in the side wall of a yoke 301 of the yoke assembly 3, the inserting piece 202 penetrates through the base 201 and the yoke 301 to be electrically connected with a coil 102 of the coil assembly 1 in the yoke assembly 3, namely two wires are led out of the coil and are respectively wound on the inserting piece 202 and then are fixed in a soldering mode, and the inserting piece 202 is provided with a connecting terminal outside the yoke assembly 3 and is connected with a coil control power supply.

In this embodiment, iron core buffer cover 7 is fixed with yoke 301 through threaded connection, and the concave surface and the iron core 401 bottom surface butt of iron core buffer cover 7 make iron core 401 by spacing can not fall out in the space that iron core buffer cover 7 and yoke 301 formed, and iron core buffer cover simple to operate improves production efficiency.

The wire inserting assembly 2 improves the leading-out mode of the coil lead wire, and has the advantages that the welding is convenient on the premise of ensuring that the coil cannot be loosened; after the iron core 401 and the ejector rod 402 are riveted together, the turning is carried out, and the axial concentricity of the iron core and the ejector rod can be effectively ensured. In this embodiment, the iron core 401 and the push rod 402 are made of two materials, the iron core 401 is made of electrical pure iron, and the push rod 402 is made of stainless steel. Electrician pure iron is a magnetically permeable material and stainless steel is a non-magnetically permeable material.

The utility model discloses in coil former 101 bottom extension among the coil pack 1 and stretching into yoke 301 of yoke subassembly 3 bottom, coil former 101 bottom extension is as the arch of coil former, from the mechanics angle, even have wearing and tearing also to metal to plastics, two pieces all are the cylinder moreover, have certain guide effect, can effectively avoid the card that takes place in the contact to hinder the phenomenon. From the electromagnetism perspective, the coil rack is plastic non-magnetic conductive, and the dispersed force can not be generated in the process of the iron core suction and release.

The utility model discloses a working process and principle as follows:

the utility model is provided with a return spring 5 in a compression state at the bottom end of the iron core 401, and when the iron core assembly 4 does not act, the return spring 5 is in a compression state; when the coil 102 is electrified, the iron core component 4 moves towards the ejector rod direction under the action of electromagnetic force to push the ejector rod, further drives the movable contact component to move and close with the static contact component, and at the moment, the return spring 5 further compresses and stores energy; when the coil 102 is powered off, the iron core 401 loses the electromagnetic attraction, and the iron core assembly 4 drives the ejector rod 402 to move downwards under the action of the self gravity and the restoring force of the return spring 5 to return to the original breaking position.

The magnetic isolation gasket 6 is of an annular structure, is sleeved on the ejector rod 402 and falls on the upper end of the iron core 401 during assembly, and has the function of preventing remanence, so that the iron core 401 is quickly separated from the positioning block 303 and is not adhered when the electromagnetic attraction is lost; when the push rod 402 moves up and down, the positioning block 303 plays a role in limiting, guiding and limiting.

The utility model discloses the anti vibration performance is high, and mainly the expression is when iron core subassembly 4 does not move, and compression state's return spring 5 can provide enough big restoring force, guarantees that iron core subassembly 4 can not lead to the malfunction because of the vibration that external environment arouses.

Claims

1. A heavy-elastic safety unit structure is characterized in that: including coil pack, yoke subassembly, iron core subassembly and return spring, wherein coil pack installs in the yoke subassembly, and the iron core subassembly passes coil pack's center pin, and the upper end is stretched out by the yoke auxiliary of yoke subassembly, and the lower extreme is stretched out by the yoke bottom through-hole of yoke subassembly, and the spring is returned in the installation between lower part extension and the yoke bottom, and return spring is compression state all the time.

2. The structure of a heavy-spring safety unit according to claim 1, wherein: the coil assembly comprises a coil rack and a coil, wherein the coil is wound on the coil rack, and the bottom end of a hollow shaft column of the coil rack is lengthened and extends into a through hole at the bottom of a yoke of the yoke assembly; the inner part of the coil frame is sleeved with the shape of a positioning block in the yoke assembly.

3. The structure of a heavy-spring safety unit according to claim 1, wherein: the yoke assembly comprises a yoke, a yoke accessory and a positioning block, wherein the yoke is covered at the bottom and the side of the coil assembly, and the yoke accessory is arranged at the upper part of the coil assembly and buckled with the yoke; the positioning block is a hollow cylinder body and is sleeved in a hollow shaft column of the coil assembly, the upper part of the positioning block is arranged in a through hole of the yoke auxiliary part, and an ejector rod of the coil assembly penetrates through the positioning block.

4. The structure of a heavy-spring safety unit according to claim 1, wherein: the iron core assembly comprises an iron core and an ejector rod, wherein the ejector rod penetrates through the positioning block, one end of the ejector rod extends out of the yoke auxiliary part from the upper part of the positioning block and is used for mounting the movable contact assembly, and the other end of the ejector rod extends out of the bottom of the positioning block and enters the iron core; the iron core and the positioning block are coaxially arranged and have an axial distance, and the bottom end of the ejector rod extends into the iron core and is fixedly connected with the iron core.

5. The structure of a heavy-spring safety unit according to claim 1, wherein: and a magnetic isolation gasket is arranged on the iron core at an axial distance from the positioning block.

6. The structure of a heavy-spring safety unit according to claim 1, wherein: the iron core buffer cover is of a concave structure and is fixedly arranged at the bottom of the yoke iron to cover the return spring at the inner side.

7. The structure of a heavy-spring safety unit according to claim 1, wherein: still have the plug wire subassembly, including base and inserted sheet, base fixed mounting is in the lateral wall notch of the yoke of yoke subassembly, and the inserted sheet passes base and yoke and is connected with coil assembly's coil electricity in the yoke subassembly, and the inserted sheet is binding post outside the yoke subassembly, is connected with coil control power.