CN214066398U

CN214066398U - Tool for measuring initial maximum attraction of electromagnet

Info

Publication number: CN214066398U
Application number: CN202120152285.6U
Authority: CN
Inventors: 李崇华; 刘平; 钱王凯; 秦志刚; 胡婕; 王敏辉
Original assignee: Jiangnan Industries Group Co Ltd
Current assignee: Jiangnan Industries Group Co Ltd
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-08-27
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a tool for measuring initial maximum suction force of an electromagnet, which comprises an installation component and a control component, wherein the installation component comprises a knurled nut with a hole, a compression screw, a support plate, a compression head, a support plate upright post, a connecting screw and a base, the control component comprises a junction box and a stabilized voltage power supply, the support plate upright post is arranged between the support plate and the base, the support plate upright post and the base are fixed through the connecting screw, the support plate is in a ladder shape, a thread through hole is arranged in the middle of the thinner end, the compression screw is arranged in the thread through hole, the thicker end is provided with a square through hole vertical to the axis of the thread through hole, the thread through hole is communicated with the square through hole, an installation counter bore is arranged beside the square through hole and is used for installing the electromagnet, the compression head is, the lower part of the electromagnet is provided with a measuring part, the electromagnet is connected with a junction box, and the junction box is connected with a voltage-stabilized power supply.

Description

Tool for measuring initial maximum attraction of electromagnet

Technical Field

The utility model relates to a process units field. In particular to a tool for measuring the initial maximum attraction force of an electromagnet, which is suitable for the condition that the accuracy requirement of a product on the initial maximum attraction force value is higher.

Background

Generally, the attraction of the electromagnet can be obtained through calculation and simulation analysis research, the factors which can actually influence the attraction of the electromagnet are many, the magnetic materials are different, the attraction generated by the difference of the magnetic permeability and the magnetic induction intensity is different, and the different attraction of the same material after processing is different in magnetic heat treatment. In addition, the working voltage, the stroke, the coil parameters and the part processing precision of the electromagnet all have certain influence on the attraction of the electromagnet. There is a significant difference between actual suction and theoretical suction. The existing magnetic force test equipment has complex structure and inconvenient operation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a survey initial maximum suction instrument of electromagnet to the adaptation is surveyed the higher condition of initial maximum suction value degree of accuracy requirement of electromagnet.

In order to achieve the above object, the utility model provides a following technical scheme: a tool for measuring initial maximum suction force of an electromagnet comprises a mounting assembly and a control assembly, wherein the mounting assembly comprises a knurled nut with a hole, a compression screw, a supporting plate, a compression head, a supporting plate upright post, a connecting screw and a base, the control assembly comprises a junction box and a voltage-stabilized power supply, the supporting plate upright post is arranged between the supporting plate and the base, the supporting plate upright post and the base are fixed through the connecting screw, the supporting plate is in a step shape, a threaded through hole is formed in the middle of the thinner end of the supporting plate upright post, the compression screw is arranged in the threaded through hole, a square through hole perpendicular to the axis of the threaded through hole is formed in the thicker end of the supporting plate upright post, the threaded through hole is communicated with the square through hole, a mounting counter bore is formed beside the square through hole and used for mounting the electromagnet, the compression head is movably arranged in the square through hole, one end of the compression head is connected with the compression screw, the other end of the electromagnet is in contact with the electromagnet and used for fixing the electromagnet, a measuring part is arranged on the lower portion of the electromagnet, the electromagnet is connected with a junction box, and the junction box is connected with a voltage-stabilized power supply.

Preferably, the electromagnet comprises a yoke iron at the upper part, the yoke iron is a stepped shaft, a coil is arranged in a shaft at the small end of the yoke iron, an armature is movably arranged in the coil, and a measuring part is installed at the lower end of the armature through an ejector rod.

Preferably, the measuring part comprises a hook connected with the ejector rod, the hook is provided with a hanging disc through a connecting buckle, the hanging disc is T-shaped, and the hanging disc is used for hanging weights.

Preferably, one end of the compression screw close to the compression head is provided with a large-head threaded part and an embedding part, a T-shaped accommodating cavity is arranged in the compression head, and the inlet end of the T-shaped accommodating cavity is in threaded connection with the large-head threaded part.

The utility model also discloses a use survey method of the initial biggest suction instrument of electromagnet, including following step:

s1, mounting the electromagnet to be tested in the mounting counter bore on the support plate, and clockwise rotating the knurled nut with the hole and the compression screw to enable the compression head to move forwards to compress the electromagnet;

s2, connecting a wire, turning on switches on a stabilized voltage power supply and a junction box, rotating a fine adjustment knob to enable the stabilized voltage power supply to supply voltage to an electromagnet coil, checking the voltage value by using a universal meter, and turning off the switch on the junction box;

s3, screwing the hook onto the ejector rod of the electromagnet, and installing a hanging disc with weights on the hook;

s4, opening a switch of the junction box, electrifying the electromagnet coil with set direct current, attracting the armature to move upwards, and driving the weights to rise together until the armature attracts; if the electromagnet cannot be attracted, the initial attraction force is unqualified, the weight is continuously added if the electromagnet can be attracted, and the heaviest weight can be attracted to the maximum initial attraction force of the electromagnet.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses an it is simple to survey original biggest suction instrument of electromagnet structure, adopts extension board stand, base, bearing plate and measuring part to realize the measurement to the electromagnet suction promptly, and its is with low costs, simple to use, and the operation of being convenient for is convenient for maintain and maintain simultaneously. Through the arrangement of the pressing head with the T-shaped cavity and the cooperation of the pressing screw, the electromagnet cannot be damaged by the pressing head in the moving process. The use method is simple, and the labor intensity is low. The method can be suitable for the condition that the accuracy requirement of the initial maximum suction value of the tested electromagnet is high.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a top view of the support plate of the present invention;

fig. 4 is a cross-sectional view of a support plate of the present invention;

fig. 5 is a schematic structural view of the pressing head of the present invention;

FIG. 6 is a schematic view of the hook structure of the present invention;

fig. 7 is a schematic view of the structure of the hanging plate of the present invention.

Reference numerals: 1. a knurled nut with holes; 2. a compression screw; 3. a support plate; 4. a compression head; 5. hooking; 6. a connecting buckle; 7. hanging a plate; 8. a weight; 9. a support plate upright post; 10. a connecting screw; 11. a base; 12. a junction box; 13. a regulated power supply; 31. a threaded through hole; 32. a square through hole; 33. mounting a counter bore; 100. an armature; 101. and a push rod.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 7, the tool for measuring initial maximum attraction of an electromagnet in the present embodiment includes a mounting assembly and a control assembly, the mounting assembly includes a knurled nut 1 with a hole, a compression screw 2, a support plate 3, a compression head 4, a support plate upright post 9, a connection screw 10, and a base 11, the control assembly includes a junction box 12 and a regulated power supply 13, the support plate upright post 9 is disposed between the support plate 3 and the base 11, the base 11 is a rectangular plate-shaped part, a rectangular through groove is milled in the middle, one end of the base has two screw counter bores, and the lower surface of the base is disposed on a working platform. The support plate upright post 9 and the base 11 are fixed through a connecting screw 10, the support plate 3 is in a step shape, a threaded through hole 31 is formed in the middle of the thin end, a compression screw 2 is arranged in the threaded through hole 31, a square through hole 32 perpendicular to the axis of the threaded through hole 31 is formed in the thick end, the threaded through hole 31 is communicated with the square through hole 32, an installation counter bore 33 is formed beside the square through hole 32, the installation counter bore 33 is used for installing an electromagnet, a compression head 4 is movably arranged in the square through hole 32, one end of the compression head 4 is connected with the compression screw 2, the other end of the compression head is in contact with the electromagnet and used for fixing the electromagnet, a measuring part is arranged on the lower portion of the electromagnet, the electromagnet is connected with a junction box 12, and the junction box 12 is connected with a stabilized voltage power supply 13. The pressing head 4 is a cylindrical part and is internally provided with a T-shaped accommodating cavity, the inlet of the T-shaped accommodating cavity is turned with threads, a wider tool withdrawal groove is formed in the cavity, the large-head thread part of the pressing screw 2 enters the tool withdrawal groove, and the pressing head 4 can freely rotate, slightly move and swing so as to be pressed tightly in the best fit state suitable for the electromagnet and not to crush the electromagnet. The middle of the other end is milled with a round sinking surface, so that the outer ring is contacted with the electromagnet more stably and more firmly.

The electromagnet comprises a yoke iron at the upper part, the yoke iron is a stepped shaft, a coil is arranged in a small end shaft of the yoke iron, an armature 100 is movably arranged in the coil, and a measuring part is arranged at the lower end of the armature 100 through a push rod 101. It should be noted here that the specific shape of the electromagnet is not shown, but does not affect the understanding of the electromagnet structure by those skilled in the art.

The measuring part comprises a hook 5 connected with the ejector rod 101, the hook 5 is provided with a hanging disc 7 through a connecting buckle 6, and the hanging disc 7 is used for hanging a weight 8. And the hook 5 is in a round rod shape, one end of the hook is provided with an internal thread, the hook is connected with the external thread of the electromagnet ejector rod, two symmetrical side surfaces at the other end of the hook are milled flat, and through grooves are milled on two vertical planes to form a hook shape. The threaded inner hole of the hook 5 is connected with the external thread of the electromagnet mandril 101. The hanging disc 7 is a T-shaped welding part and is formed by welding a disc with a hole and a small round rod and is hung on the hook 5 through a connecting buckle 6. The weight 8 is a slotted cake shape and can be increased or decreased according to requirements.

The embodiment also discloses a method for using the tool for measuring the initial maximum attraction force of the electromagnet, which comprises the following steps:

s1, the electromagnet to be tested is arranged in the mounting counter bore 33 on the support plate 3, and the knurled nut 1 with the hole and the compression screw 2 are rotated clockwise, so that the compression head 4 moves forward to compress the electromagnet;

s2, connecting the electric wire, turning on the switches on the stabilized voltage supply 13 and the junction box 12, rotating the fine adjustment knob to enable the stabilized voltage supply 13 to output the voltage to the electromagnet coil, checking the voltage value by using a universal meter, and turning off the switch on the junction box 12;

s3, screwing the hook 5 onto the ejector rod 101 of the electromagnet, and installing the hanging disc 7 with the weight 8 on the hook 5;

s4, opening a switch of the junction box 12, electrifying the electromagnet coil with set direct current, attracting the armature 100 to move upwards, and driving the weight 8 to rise together until the armature 100 attracts; if the electromagnet cannot be attracted, the initial attraction force is unqualified, the weight 8 is continuously added if the electromagnet can be attracted, and the heaviest weight 8 can be attracted to achieve the maximum initial attraction force of the electromagnet. The utility model discloses an survey initial maximum suction instrument of electromagnetism simple structure, low in manufacturing cost, convenient to use, the transport of being convenient for.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a survey initial maximum suction of electromagnet tool, includes installation component and control assembly, its characterized in that: the mounting assembly comprises a knurled nut (1) with a hole, a compression screw (2), a support plate (3), a compression head (4), a support plate upright post (9), a connecting screw (10) and a base (11), the control assembly comprises a junction box (12) and a stabilized voltage power supply (13), the support plate upright post (9) is arranged between the support plate (3) and the base (11), the support plate upright post (9) and the base (11) are fixed through the connecting screw (10), the support plate (3) is in a step shape, a threaded through hole (31) is formed in the middle of the thinner end of the support plate upright post, the compression screw (2) is arranged in the threaded through hole (31), a square through hole (32) perpendicular to the axis of the threaded through hole (31) is formed in the thicker end of the support plate upright post, the threaded through hole (31) is communicated with the square through hole (32), and a mounting counter bore (33) is formed beside the square through hole (32), the installation counter bore (33) is used for installing an electromagnet, the pressing head (4) is movably arranged in the square through hole (32), one end of the pressing head (4) is connected with the pressing screw (2), the other end of the pressing head is in contact with the electromagnet and used for fixing the electromagnet, the measuring part is arranged on the lower portion of the electromagnet, the electromagnet is connected with the junction box (12), and the junction box (12) is connected with the stabilized voltage power supply (13).

2. Tool for measuring the initial maximum attraction force of an electromagnet according to claim 1, characterised in that: the electromagnet comprises a yoke iron at the upper part, the yoke iron is a stepped shaft, a coil is arranged in a small-end shaft of the yoke iron, an armature (100) is movably arranged in the coil, and a measuring part is installed at the lower end of the armature (100) through an ejector rod (101).

3. Tool for measuring the initial maximum attraction force of an electromagnet according to claim 2, characterised in that: the measuring part comprises a hook (5) connected with an ejector rod (101), the hook (5) is provided with a hanging disc (7) through a connecting buckle (6), the hanging disc (7) is T-shaped, and the hanging disc (7) is used for hanging weights (8).

4. Tool for measuring the initial maximum attraction force of an electromagnet according to claim 2, characterised in that: one end of the compression screw (2) close to the compression head (4) is provided with a large-head threaded part and an embedding part, a T-shaped accommodating cavity is arranged in the compression head (4), and the inlet end of the T-shaped accommodating cavity is in threaded connection with the large-head threaded part.