CN211041965U - Miniature electromagnetic pin puller - Google Patents
Miniature electromagnetic pin puller Download PDFInfo
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- CN211041965U CN211041965U CN201922192450.6U CN201922192450U CN211041965U CN 211041965 U CN211041965 U CN 211041965U CN 201922192450 U CN201922192450 U CN 201922192450U CN 211041965 U CN211041965 U CN 211041965U
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Abstract
A miniature electromagnetic pin puller comprises an outer yoke, an inverted T-shaped iron core, an armature, a step pin, a coil rack and a coil; the coil is wound on the coil frame, the lower part of the outer yoke is sleeved on the coil frame, and the lower port of the outer yoke is riveted and fixed with the lower end of the inverted T-shaped iron core; the armature is positioned in the upper end necking of the outer yoke, the upper end of the armature is in clearance fit with the inner wall of the upper end necking of the outer yoke, and an end cover is fixedly riveted to the upper end port of the outer yoke; the step pin is sequentially inserted into the end cover, the armature and the inverted T-shaped iron core, the upper end of the step pin is fixedly brazed with the armature, and the lower end of the step pin is sleeved with a return spring; the utility model discloses an optimize magnetic circuit structure, and the motion resistance is little, the direction is reliable stable, has characteristics such as compact structure, electromagnetism suction is big, light in weight to satisfy the requirement of lightweight, big load.
Description
Technical Field
The utility model belongs to the technical field of the electromagnetism pin puller is made, concretely relates to miniature electromagnetism pin puller.
Background
The volume and the weight of an existing electromagnetic pin extractor can be increased along with the lifting of a load, so that the application environment of the existing electromagnetic pin extractor is greatly limited, and the requirements of light weight and large load of the electromagnetic pin extractor cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model provides a miniature electromagnetism pin puller to solve the technical bottleneck of lightweight, heavy load.
The utility model adopts the technical proposal that: a miniature electromagnetic pin puller comprises an outer yoke, an inverted T-shaped iron core, an armature, a step pin, a coil rack and a coil; the coil is wound on the coil frame, the lower part of the outer yoke is sleeved on the coil frame, and the lower port of the outer yoke is riveted and fixed with the lower end of the inverted T-shaped iron core;
the center of the inverted T-shaped iron core is sequentially and coaxially provided with a conical hole, a step hole I and a guide through hole from top to bottom, one side of the lower end face of the inverted T-shaped iron core is provided with a wire passing hole, and a lead of the coil is led out of the wire passing hole; the armature is positioned in the upper end necking of the outer yoke, the upper end of the armature is provided with a circular plane structure in clearance fit with the inner wall of the upper end necking of the outer yoke, the lower end of the armature is provided with a conical boss matched with the conical hole, and the center of the armature is sequentially and coaxially provided with a through hole and a step hole II from top to bottom;
an end cover with a through hole in the center is fixedly riveted at the upper port of the outer yoke, the step pin is composed of a cylindrical pin and a guide rod, and the joint of the cylindrical pin and the guide rod is provided with an annular end face; the step pin is sequentially inserted into the end cover, the armature and the inverted T-shaped iron core, the cylindrical pin of the step pin is positioned in a through hole of the end cover, the annular end face of the step pin is fixed with the upper end face of the armature in a brazing mode, the guide rod penetrates through the through hole, the step hole II, the conical hole and the step hole I and then extends into the guide through hole, the guide rod is sleeved with the reset spring, and two ends of the reset spring are respectively positioned in the step hole II and the step hole I.
The step pins are non-magnetic metal pins, and the end covers are non-magnetic metal end covers.
The coil rack is a nylon coil rack.
Compared with the prior art, the utility model discloses beneficial effect who has:
1. the outer yoke of the utility model is formed by integrally turning and processing magnetic conductive materials, has the functions of shell protection, magnetic conduction and the like, simplifies the structure and reduces the volume;
2. the armature of the utility model adopts a conical step structure, which reduces the contact area between the armature and the inner wall of the outer yoke iron and has small friction resistance;
3. the pin and the end cover of the utility model are made of non-magnetic material, which reduces the magnetic leakage phenomenon of the magnetic circuit and improves the magnetic efficiency of the electromagnetic system;
4. the utility model discloses the coil frame material has satisfied the operation requirement of product for high temperature resistant insulating material to the insulating properties of product has been improved.
5. The utility model discloses the pin runs through product top and end, both fixes reset spring, provides the guide effect again, has improved mechanism motion performance.
Drawings
FIG. 1 is a schematic view of the structure of the utility model in the initial state;
FIG. 2 is a cross-sectional view of the T-shaped iron core structure of the present invention;
fig. 3 is a sectional view of the structure of the armature of the present invention;
fig. 4 is a schematic view of the step pin structure of the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings 1-4 and the detailed description thereof.
A miniature electromagnetic pin puller comprises an outer yoke iron 1, an inverted T-shaped iron core 2, an armature 3, a step pin 4, a coil rack 5 and a coil 7; the coil frame 5 is sleeved on the inverted T-shaped iron core 2, the coil 7 is wound on the coil frame 5, the lower part of the outer yoke 1 is sleeved on the coil frame 5, and the lower port of the outer yoke 1 is riveted and fixed with the lower end of the inverted T-shaped iron core 2;
the center of the inverted T-shaped iron core 2 is coaxially provided with a conical hole 2-1, a step hole I2-2 and a guide through hole 2-3 from top to bottom in sequence, one side of the lower end face of the inverted T-shaped iron core 2 is provided with a wire passing hole 2-4, and a lead 8 of the coil 7 is led out from the wire passing hole 2-4; the armature 3 is positioned in a necking at the upper end of the outer yoke iron 1, the upper end of the armature is provided with a circular plane structure 3-4 in clearance fit with the inner wall of the necking at the upper end of the outer yoke iron 1, the lower end of the armature is provided with a conical boss 3-1 matched with the conical hole 2-1, and the center of the armature is sequentially and coaxially provided with a through hole 3-3 and a step hole II 3-2 from top to bottom;
an end cover 6 with a through hole in the center is fixedly riveted on the upper port of the outer yoke 1, the step pin 4 is composed of a cylindrical pin 4-3 and a guide rod 4-2, and the joint of the cylindrical pin 4-3 and the guide rod 4-2 is provided with an annular end face 4-1; the step pin 4 is sequentially inserted into the end cover 6, the armature 3 and the inverted T-shaped iron core 2, the cylindrical pin 4-3 of the step pin is positioned in a through hole of the end cover 6, the annular end face 4-1 and the upper end face of the armature 3 are fixed in a brazing mode, the guide rod 4-2 penetrates through the through hole 3-3, the step hole II 3-2, the conical hole 2-1 and the step hole I2-2 and then extends into the guide through hole 2-3, the guide rod 4-2 is sleeved with the reset spring 9, and two ends of the reset spring 9 are respectively positioned in the step hole II 3-2 and the step hole I2-2.
The step pin 4 is a non-magnetic metal pin, and the end cover 6 is a non-magnetic metal end cover. The step pin 4 and the end cover 6 can be made of stainless steel, copper, aluminum and other materials. The coil rack 5 is a nylon coil rack. The coil 7 is a single winding coil. The inverted T-shaped iron core 2, the outer yoke iron 1 and the armature 3 are all made of electromagnetic pure iron. The conical angles of the conical hole 2-1 and the conical boss 3-1 are both 60 degrees.
When the electromagnetic pin pulling device works, when the coil 7 is excited according to specified parameters, magnetic flux is generated in an electromagnetic system, the armature 3 overcomes the counter force of the return spring 9 to drive the step pin 4 to move downwards, and the pin pulling function is realized. When the coil 7 is de-energized, the armature 3 returns to the initial state under the thrust of the return spring 9 as the magnetic flux in the electromagnetic system disappears, waiting for the next operation.
The utility model discloses an optimize mechanical structure, realized the purpose of optimizing magnetic circuit structure, and the motion resistance is little, the direction is reliable stable, and the coil is the single winding, has characteristics such as compact structure, electromagnetism suction is big, light in weight to satisfy light-weighted, heavy load's requirement the utility model discloses electromagnetism is efficient, and is small (phi 10mm × phi 10mm), the quality is light (less than or equal to 4g), electromagnetism suction is big (1N ~ 5N), shock resistance is strong, has solved the technical bottleneck of lightweight, heavy load the utility model discloses be particularly suitable for in the security mechanism such as aircraft string bullet, guided missile seeker, rocket projectile, grenade, shell fuse, play the locking function.
The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that all equivalent changes made by the contents of the claims of the present invention should be included in the scope of the claims of the present invention.
Claims (3)
1. The utility model provides a miniature electromagnetism pin puller which characterized in that: comprises an outer yoke iron (1), an inverted T-shaped iron core (2), an armature iron (3), a step pin (4), a coil rack (5) and a coil (7); the coil winding device is characterized in that the outer yoke (1) is a stepped cylinder with a necking upper end, the coil former (5) is sleeved on the inverted T-shaped iron core (2), the coil (7) is wound on the coil former (5), the lower part of the outer yoke (1) is sleeved on the coil former (5), and the lower port of the outer yoke (1) is fixedly riveted with the lower end of the inverted T-shaped iron core (2);
the center of the inverted T-shaped iron core (2) is coaxially provided with a conical hole (2-1), a step hole I (2-2) and a guide through hole (2-3) from top to bottom in sequence, one side of the lower end face of the inverted T-shaped iron core (2) is provided with a wire passing hole (2-4), and a lead (8) of the coil (7) is led out from the wire passing hole (2-4); the armature (3) is positioned in a necking at the upper end of the outer yoke (1), the upper end of the armature is provided with a circular plane structure (3-4) in clearance fit with the inner wall of the necking at the upper end of the outer yoke (1), the lower end of the armature is provided with a conical boss (3-1) matched with the conical hole (2-1), and the center of the armature is sequentially and coaxially provided with a through hole (3-3) and a step hole II (3-2) from top to bottom;
an end cover (6) with a through hole in the center is fixedly riveted on the upper port of the outer yoke (1), the step pin (4) is composed of a cylindrical pin (4-3) and a guide rod (4-2), and the joint of the cylindrical pin (4-3) and the guide rod (4-2) is provided with an annular end face (4-1); the step pin (4) is sequentially inserted into the end cover (6), the armature (3) and the inverted T-shaped iron core (2), the cylindrical pin (4-3) of the step pin is located in a through hole of the end cover (6), the annular end face (4-1) and the upper end face of the armature (3) are fixed in a brazing mode, the guide rod (4-2) penetrates through the through hole (3-3), the step hole II (3-2), the conical hole (2-1) and the step hole I (2-2) and then extends into the guide through hole (2-3), the guide rod (4-2) is sleeved with the reset spring (9), and two ends of the reset spring (9) are located in the step hole II (3-2) and the step hole I (2-2) respectively.
2. A micro electromagnetic pin puller according to claim 1; the method is characterized in that: the step pins (4) are non-magnetic metal pins, and the end covers (6) are non-magnetic metal end covers.
3. A micro electromagnetic pin puller according to claim 1 or 2; the method is characterized in that: the coil rack (5) is a nylon coil rack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922192450.6U CN211041965U (en) | 2019-12-10 | 2019-12-10 | Miniature electromagnetic pin puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922192450.6U CN211041965U (en) | 2019-12-10 | 2019-12-10 | Miniature electromagnetic pin puller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211041965U true CN211041965U (en) | 2020-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922192450.6U Active CN211041965U (en) | 2019-12-10 | 2019-12-10 | Miniature electromagnetic pin puller |
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| CN (1) | CN211041965U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230052028A (en) * | 2021-10-12 | 2023-04-19 | 엘아이지넥스원 주식회사 | Pin puller apparatus |
-
2019
- 2019-12-10 CN CN201922192450.6U patent/CN211041965U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230052028A (en) * | 2021-10-12 | 2023-04-19 | 엘아이지넥스원 주식회사 | Pin puller apparatus |
| KR102545911B1 (en) | 2021-10-12 | 2023-06-21 | 엘아이지넥스원 주식회사 | Pin puller apparatus |
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