CN113096913A

CN113096913A - Damping electromagnet

Info

Publication number: CN113096913A
Application number: CN201911335922.7A
Authority: CN
Inventors: 黄伟良; 黄山青; ***; 湛晨星; 杨智勇
Original assignee: Yueyang Yongjin Lifting Permanent Magnet Co ltd
Current assignee: Yueyang Yongjin Lifting Permanent Magnet Co ltd
Priority date: 2019-12-23
Filing date: 2019-12-23
Publication date: 2021-07-09

Abstract

The invention discloses a damping electromagnet, which comprises: a groove is formed in the shell, a taper hole is formed in one end of the groove, and a counter bore is formed in the lower surface of the shell; the buffer pad is arranged in the counter bore; the mounting seat is arranged on the lower surface of the shell; the upper surface of the mounting seat is abutted with the cushion pad; a through hole is formed in the center of the mounting seat; the iron core is arranged in the through hole; one end of the pull rod is arranged in the groove; the taper hole is used for clamping the pull rod; the pull rod penetrates through the iron core; the other end of the pull rod is provided with a boss; the reset spring is sleeved on the pull rod, one end of the reset spring is connected with the iron core, and the other end of the reset spring is connected with one end, close to the iron core, of the boss. The damping electromagnet can realize the damping and locking states, has high precision, reduces vibration and can better meet the requirements in use.

Description

Damping electromagnet

Technical Field

The invention relates to a damping electromagnet.

Background

The electromagnet is widely applied to industrial automation control, is small as a relay and large as an electromagnet hammock, is widely applied and can be easily found in life. However, in some applications, electromagnets are considered to be less than desirable. The force of the electromagnet shows a quadratic function attenuation with the increase of the action distance. On the premise of constant power, the long-stroke electromagnet runs farther than the short-stroke electromagnet while ensuring the force. The conventional electromagnet is usually a coil, and cannot realize a long stroke. Therefore, in some places requiring long stroke, such as electric air pump, discharger of feeding belt, injection molding machine, etc., engineers have to replace them with air cylinder and motor crankshaft, and these mechanical structures are usually complicated and have high production cost and maintenance cost. Some stepping electromagnets have realized long stroke, and strength is stable, but its structure is complicated, installation and debugging are inconvenient to still need software control such as singlechip, have the structure complicacy equally, and manufacturing cost, maintenance cost all very high characteristics. If the common electromagnet needs to have a long stroke, the power must be increased by several times or even tens of times. However, the large power will bring large noise and large vibration, which has adverse effect on the equipment, and the equipment needs to maintain fixed connection and precision during some actions, so that locking is needed to maintain, and when the equipment runs, the noise is too large, and a damping state is needed.

Disclosure of Invention

Therefore, in order to solve the above problems, a damping electromagnet is needed, which can achieve damping and locking states, has high precision, reduces vibration, and can further meet the requirements during use.

This shock attenuation electro-magnet includes:

the device comprises a shell, a sealing ring and a sealing ring, wherein a groove is formed in the shell, a taper hole is formed in one end of the groove, and a counter bore is formed in the lower surface of the shell;

a cushion pad disposed within the counterbore;

the mounting seat is arranged on the lower surface of the shell; the upper surface of the mounting seat is abutted with the cushion pad; a through hole is formed in the center of the mounting seat;

the iron core is arranged in the through hole;

a pull rod; one end of the pull rod is arranged in the groove; the taper hole is used for clamping the pull rod; the pull rod penetrates through the iron core; the other end of the pull rod is provided with a boss;

a return spring; the reset spring is sleeved on the pull rod, one end of the reset spring is connected with the iron core, and the other end of the reset spring is connected with one end, close to the iron core, of the boss.

Preferably, the taper hole is communicated with the counter bore, and the area of one end of the taper hole connected with the counter bore is smaller than that of the other end of the taper hole.

Preferably, the height of the cushion pad is greater than or equal to the height of the counter bore.

Preferably, one end of the pull rod arranged in the groove is provided with a frustum matched with the taper hole.

Preferably, the large end opening of the taper hole is matched with the large end of the frustum; the small end of the taper hole is matched with the small end of the frustum.

Preferably, a threaded hole is formed in the center of the lower surface of the frustum, and threads matched with the threaded hole are formed in one end of the pull rod.

Preferably, an opening is formed at one end of the iron core, and the pull rod penetrates through the iron core from the opening.

Preferably, the pull rod is made of a magnetic-conductive stainless steel material.

Compared with the related art, the damping electromagnet has the beneficial effects that: when the electromagnet is electrified, the pull rod returns, one end of the pull rod is abutted to the upper surface of the groove, the mounting seat is tightly attached to the shell, the reset spring is compressed, and the electromagnet is in a locking state; when the electromagnet is powered off, the reset spring resets, the pull rod pulls down, the buffer pad is compressed, the frustum is located in the conical hole, and the electromagnet is in a damping state.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a shock-absorbing electromagnet according to the present invention;

fig. 2 is a schematic structural view of another embodiment of the shock-absorbing electromagnet according to the present invention.

Detailed Description

The present invention proposes a shock-absorbing electromagnet, which, with reference to fig. 1 and 2, comprises: this shock attenuation electro-magnet includes: the device comprises a shell 10, a cushion pad 20, a mounting seat 30, an iron core 40, a pull rod 50 and a return spring 60.

A groove 10a is formed in the shell 10, a taper hole 10b is formed in one end of the groove 10a, and a counter bore 10c is formed in the lower surface of the shell 10; the cushion pad 20 is arranged in the counter bore 10 c; the mounting seat 30 is arranged on the lower surface of the housing 10; the upper surface of the mounting seat 30 abuts against the cushion pad 20; a through hole is formed in the center of the mounting seat 30; the iron core 40 is arranged in the through hole; one end of the pull rod 50 is arranged in the groove 10 a; the taper hole 10b is used for clamping the pull rod 50; the pull rod 50 passes through the iron core 40; the other end of the pull rod 50 is provided with a boss 50 a; reset spring 60 cover is established on pull rod 50, reset spring 60's one end with iron core 40 is connected, reset spring 60's the other end with boss 50a is close to iron core 40's one end is connected. In the invention, the electromagnetic spring can realize two states of locking and damping. When the electromagnet is electrified, the pull rod 50 returns, one end of the pull rod 50 is abutted to the upper surface of the groove 10a, the mounting seat 30 is tightly attached to the shell 10, the return spring 60 is compressed, and the electromagnet is in a locking state; when the electromagnet is powered off, the return spring 60 is reset, the pull rod 50 is pulled downwards, the buffer pad 20 is compressed, the frustum is positioned in the conical hole, and the electromagnet is in a shock absorption state.

Further, the taper hole 10b is communicated with the counter bore 10c, and the area of one end of the taper hole 10b connected with the counter bore 10c is smaller than that of the other end of the taper hole 10 b. The pull rod 50 is movably connected with the shell 10 through a taper hole 10b and a frustum.

Further, the height of the cushion pad 20 is greater than or equal to the height of the counterbore 10 c. When the housing 10 is fitted to the mounting seat 30, the cushion pad 20 is compressed to achieve shock absorption and reduce noise.

Further, one end of the pull rod 50 disposed in the groove 10a is provided with a frustum adapted to the taper hole 10 b. The shock absorption effect of the shock absorption electromagnet is good.

Further, the large end opening of the taper hole 10b is matched with the large end of the frustum; the small end of the taper hole 10b is matched with the small end of the frustum.

Further, a threaded hole is formed in the center of the lower surface of the frustum, and threads matched with the threaded hole are formed in one end of the pull rod 50.

Further, an opening is provided at one end of the iron core 40, and the pull rod 50 passes through the iron core 40 from the opening.

Further, the pull rod 50 is made of a magnetic conductive stainless steel material.

Compared with the related art, the damping electromagnet has the beneficial effects that: when the electromagnet is electrified, the pull rod 50 returns, one end of the pull rod 50 is abutted to the upper surface of the groove 10a, the mounting seat 30 is tightly attached to the shell 10, the return spring 60 is compressed, and the electromagnet is in a locking state; when the electromagnet is powered off, the return spring 60 is reset, the pull rod 50 is pulled downwards, the buffer pad 20 is compressed, the frustum is positioned in the conical hole, and the electromagnet is in a shock absorption state.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A shock absorbing electromagnet, comprising:

a cushion pad disposed within the counterbore;

the iron core is arranged in the through hole;

2. The shock absorbing electromagnet as set forth in claim 1, wherein said tapered bore is in communication with said counterbore, and an area of an end of said tapered bore connected to said counterbore is smaller than an area of another end of said tapered bore.

3. The shock absorbing electromagnet as set forth in claim 1 wherein said cushion has a height equal to or greater than a height of said counterbore.

4. The shock absorbing electromagnet as set forth in claim 1, wherein the end of the pull rod disposed in the recess is provided with a frustum adapted to the tapered hole.

5. The shock absorbing electromagnet as set forth in claim 1 wherein the large end opening of said tapered bore is adapted to the large end of said frustum; the small end of the taper hole is matched with the small end of the frustum.

6. The shock-absorbing electromagnet as set forth in claim 4, wherein a threaded hole is formed in the center of the lower surface of the frustum, and a thread adapted to the threaded hole is formed at one end of the tie rod.

7. A shock absorbing electromagnet as claimed in claim 1 wherein an opening is provided at one end of said core through which said pull rod passes.

8. A shock absorbing electromagnet as claimed in claim 1 wherein said tie rod is made of a magnetically conductive stainless steel material.