CN210692254U

CN210692254U - Electromagnet air gap limit adjusting device structure

Info

Publication number: CN210692254U
Application number: CN201921279561.4U
Authority: CN
Inventors: 马化韬; 李芳昕; 谭云海; 倪国华; 饶志文; 周呈劼; 黄建民; 吴启峰
Original assignee: Jiangxi Lianchuang Photoelectric Superconductor Application Co Ltd
Current assignee: Jiangxi Lianchuang Photoelectric Superconductor Application Co Ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-06-05
Anticipated expiration: 2029-08-08

Abstract

The utility model relates to an electromagnetic equipment technical field just discloses a spacing adjusting device structure of electro-magnet air gap, including casing, quiet iron core and armature, the adjusting sleeve has been cup jointed to the lateral wall of armature, the upper end of adjusting sleeve lateral wall is connected with the adjustment disk. This spacing adjusting device structure of electro-magnet air gap, the air gap through thinner syringe injection hydraulic liquid adjustment electro-magnet, and then reduced the error of adjustment, ensure the precision of air gap adjustment, the error that deformation brought has been eliminated simultaneously, because the hydraulic liquid that the adjustment hole got into, the hydraulic liquid that the balancing hole was extruded, the ascending distance of adjusting sleeve and the change of air gap are guaranteed uniformly, it can obtain the actual air gap to record any data, the accuracy of parameter setting has been guaranteed, and then guarantee the accuracy of the best air gap data of experiment, owing to adopted hydraulic liquid adjustment air gap, and hydraulic liquid is wrapping up armature, can play the effect to the armature cooling.

Description

Electromagnet air gap limit adjusting device structure

Technical Field

The utility model relates to an electromagnetism technical field specifically is a spacing adjusting device structure of electro-magnet air gap.

Background

Referring to fig. 1, the gap between the electromagnets is the movement stroke of the movable iron core in the electromagnets, and the size of the gap directly affects the normal operation of the feeding machine, for example, if the gap is improperly adjusted, a light person increases the current, reduces the amplitude, and cannot operate normally, and a serious person collides the iron core to cause the damage to the iron core and the coil, so that frequent inspection and adjustment of the gap are important conditions for ensuring the normal operation of the electromagnets.

Firstly, the adjustment of the air gap of the existing electromagnet is usually realized through a nut or a gasket, on one hand, the adjustment precision is limited, the size of the air gap is not the optimal distance for meeting the work, the output torque of the electromagnet is reduced, and the energy consumption is increased, on the other hand, the adjustment precision of the nut or the gasket is further reduced along with the long time, and the performance of the electromagnet is further reduced.

Secondly, in order to improve the output power of the electromagnet, the yoke is usually arranged outside the coil, the yoke seals the magnetic field of the coil, the utilization rate of the magnetic field is improved, and further the attraction capacity of the movable iron core is improved.

SUMMERY OF THE UTILITY MODEL

To the not enough of above-mentioned background art, the utility model provides a spacing adjusting device structure of electro-magnet air gap possesses the high and easily measurable advantage of adjustment accuracy, has solved the problem that the background art provided.

The utility model provides a following technical scheme: the utility model provides a spacing adjusting device structure of electro-magnet air gap, includes casing, quiet iron core and armature, adjusting sleeve has been cup jointed to the lateral wall of armature, the upper end of adjusting sleeve lateral wall is connected with the adjustment disk, it is fixed that the upper end of armature and adjusting sleeve passes through the mounting, the lower extreme of adjustment disk is equipped with the piston rod, through fastener swing joint between adjustment disk and the piston rod, the lower extreme of piston rod is connected with the piston, the casing is equipped with hydraulic pressure chamber corresponding to the position of piston rod, the upper and lower end of hydraulic pressure chamber lateral wall is equipped with adjusting hole and balancing hole respectively, adjusts the air gap size of electro-magnet through the hydraulic fluid of adjustment hydraulic pressure intracavity.

Preferably, the fixing piece is a special-shaped fixing nut, a stop block is arranged on the outer side wall of the armature, the armature is in mirror connection with the fixing piece, the adjusting sleeve is in threaded connection with the fixing piece, and threads between the adjusting sleeve and the fixing piece are high-precision threads.

Preferably, the hydraulic cavity is a cylinder with a circular section, the hydraulic cavity is matched with the piston, the upper end of the piston is provided with a plurality of piston rods with the armature axis as a symmetry axis, and the piston rods and the upper end of the shell are subjected to sealing treatment.

Preferably, the inner diameter of the adjusting sleeve is smaller than the diameter of the static iron core, and the adjusting sleeve, the static iron core and the armature are coaxial.

Preferably, the lowest movable point of the piston is higher than the adjusting hole, and the highest movable point of the piston is lower than the balancing hole.

Preferably, the adjusting hole and the balancing hole are both provided with sealing valves, and the adjusting hole and the balancing hole are respectively connected with an injector.

The utility model discloses possess following beneficial effect:

1. this spacing adjusting device structure of electro-magnet air gap, the air gap through the electro-magnet of thinner syringe injection hydraulic liquid adjustment, because the surface area of armature is greater than the area of syringe far away, the injection of more liquid just can bring the piston little rising, and then reduced the error of adjustment, ensure the precision of air gap adjustment, and then guarantee that the performance of electro-magnet keeps in best user state, simultaneously, because all need fix a position armature and adjusting sleeve earlier when the adjustment at every turn, make it keep at same horizontal plane, the error that deformation brought has been eliminated.

2. This spacing adjusting device structure of electro-magnet air gap, because the hydraulic fluid that the adjustment hole got into, the hydraulic fluid that the balance hole was extruded, the change of the ascending distance of adjustment sleeve pipe and air gap is guaranteed uniformly, it can obtain the air gap of reality to record any data, the accuracy of parameter setting has been guaranteed, and then the accuracy of the best air gap data of assurance experiment, on the other hand, because clearance adjustment is simple and convenient and accurate, make the adjustment go on often, thereby further guarantee the use efficiency of electro-magnet.

3. This spacing adjusting device structure of electro-magnet air gap, owing to adopted hydraulic liquid adjustment air gap, and hydraulic liquid is wrapping up armature, when using the higher hydraulic liquid of specific heat capacity at that time, can play the effect to the armature cooling, reduced the speed that the electro-magnet temperature risees, and then improved the continuous use time of electro-magnet.

Drawings

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

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic view of an adjusting sleeve and an armature according to the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 2 in accordance with the present invention;

fig. 5 is a schematic diagram of the gap adjustment of the present invention.

In the figure: 1. a housing; 2. a stationary iron core; 3. an armature; 4. adjusting the sleeve; 5. a fixing member; 6. adjusting the disc; 7. a hydraulic chamber; 8. a piston; 9. a piston rod; 10. a fastener; 11. an adjustment hole; 12. a balance hole; 13. a syringe.

Detailed Description

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.

Referring to fig. 1-5, an electromagnet air gap limit adjusting device structure includes a housing 1, a static iron core 2 and an armature 3, an adjusting sleeve 4 is sleeved on an outer side wall of the armature 3, the housing 1 and the armature 3 are both mirror-connected with the adjusting sleeve 4, an adjusting plate 6 is connected to an upper end of the outer side wall of the adjusting sleeve 4, the adjusting plate 6 is rigidly connected with the adjusting sleeve 4, the adjusting plate 6 drives the adjusting sleeve 4 to move up and down, the armature 3 and an upper end of the adjusting sleeve 4 are fixed by a fixing member 5, the fixing member 5 limits a maximum moving distance of the armature 3, a piston rod 9 is assembled at a lower end of the adjusting plate 6, the adjusting plate 6 is movably connected with the piston rod 9 by a fastening member 10, the fastening member 10 is a special-shaped nut which cannot rotate by itself after being installed, a piston 8 is connected to a lower end of the piston rod 9, a hydraulic chamber 7 is arranged at a position of the housing 1 corresponding to the piston rod 9 The moving distance of the sleeve 4 and the moving distance of the armature 3 are further limited, so that the size of the air gap is adjusted, the upper end and the lower end of the outer side wall of the hydraulic chamber 7 are respectively provided with an adjusting hole 11 and a balancing hole 12, the cross sections of the adjusting hole 11 and the balancing hole 12 are far smaller than that of the hydraulic chamber 7, and the size of the air gap of the electromagnet is adjusted by adjusting hydraulic liquid in the hydraulic chamber 7.

Wherein, mounting 5 is special-shaped fixation nut, avoid 3 vibrations of armature to shake away mounting 5, the lateral wall of armature 3 is equipped with the dog, the maximum displacement of quiet iron core 2 is kept away from to

restriction armature

3, 5 mirror surface connections of armature 3 and mounting, guarantee armature 3's normal operating, adjusting

sleeve

4 and 5 threaded connection of mounting, rotatory mounting 5 extrudees on armature 3 as the dog, the clearance that compensation deformation produced, the screw thread between adjusting sleeve 4 and the mounting 5 is the high accuracy screw thread, avoid 5 wrong silks of mounting slope.

Wherein, hydraulic pressure chamber 7 is the cylinder that the cross-section is the ring, guarantees to piston 8 pressure equilibrium, hydraulic pressure chamber 7 and piston 8 adaptation, and a plurality of piston rods 9 that use armature 3 axis as the symmetry axis are installed to the upper end of piston 8, reduce adjusting disk 6 or piston 8 and take place the error that deformation produced, and piston rod 9 and the upper end of casing 1 are through sealed processing, avoid revealing to cause the air gap adjustment inaccuracy.

Wherein, the internal diameter of adjusting sleeve 4 is less than the diameter of quiet iron core 2, and adjusting sleeve 4, quiet iron core 2 and armature 3 coaxial make armature 3 and adjusting sleeve 4 all can support quiet iron core 2, aim at with the up end of quiet iron core 2 as the reference surface, when adjusting sleeve 4 rose, armature 3 rose jointly under reaction spring's traction, and its lower extreme still aligns with adjusting sleeve 4, and adjusting sleeve 4 and quiet iron core 2's interval was armature 3's working air gap promptly this moment.

The lowest point of the piston 8 which can move is higher than the adjusting hole 11, the highest point of the piston 8 which can move is lower than the balance hole 12, when the piston 8 moves upwards, the balance hole 12 discharges liquid into the liquid inlet adjusting hole 11, and when the piston 8 moves downwards, the balance hole 12 discharges liquid into the liquid inlet adjusting hole 11.

Sealing valves are mounted on the adjusting hole 11 and the balancing hole 12, the sealing valves are used for avoiding pressure leakage after adjustment is finished, the adjusting hole 11 and the balancing hole 12 are respectively connected with an injector 13, and the adjusting effect is determined by the volume of liquid injected by the injector 13.

The working principle of the structure of the electromagnet air gap limiting and adjusting device is as follows:

disconnecting the power supply to make the electromagnet lose attraction force, connecting an injector 13 to each of the adjusting hole 11 and the balance hole 12, opening the sealing valves on the adjusting hole 11 and the balance hole 12, loosening the fixing member 5, pressing the adjusting disk 6 to make the adjusting sleeve 4 and the housing 1 tightly abut against each other, pressing the armature 3 to make the armature 3 abut against the housing 1, screwing on and screwing the fixing member 5, and simultaneously pressing the fixing member 5 to press the stopper on the armature 3, in the process of pressing the adjusting disk 6, the piston rod 9 moves along with the adjusting disk 6 to drive the piston 8 to move, the hydraulic liquid at the lower end is extruded from the adjusting hole 11 by the movement of the piston 8, the hydraulic liquid is sucked into the balance hole 12, the preparation before adjustment is completed, during adjustment, injecting the hydraulic liquid through the adjusting hole 11, at the moment, the hydraulic liquid at the upper end flows out from the balance hole 12, and simultaneously driving the fastener 10 to ascend, further making the adjusting disk 6 and the adjusting sleeve 4 ascend, and calculating the ascending distance between the, and stopping injection after the rising distance rises to the designed height, closing the sealing valves on the adjusting hole 11 and the balancing hole 12, and completing air gap adjustment.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spacing adjusting device structure of electro-magnet air gap, includes casing (1), quiet iron core (2) and armature (3), its characterized in that: adjusting sleeve (4) have been cup jointed to the lateral wall of armature (3), the upper end of adjusting sleeve (4) lateral wall is connected with adjustment disc (6), it is fixed through mounting (5) in the upper end of armature (3) and adjusting sleeve (4), the lower extreme of adjustment disc (6) is equipped with piston rod (9), through fastener (10) swing joint between adjustment disc (6) and piston rod (9), the lower extreme of piston rod (9) is connected with piston (8), casing (1) is equipped with hydraulic pressure chamber (7) corresponding to the position of piston rod (9), the upper and lower end of hydraulic pressure chamber (7) lateral wall is equipped with adjusting hole (11) and balancing hole (12) respectively, adjusts the air gap size of electro-magnet through the hydraulic fluid in the adjustment hydraulic pressure chamber (7).

2. The structure of an electromagnet air gap limit adjusting device according to claim 1, characterized in that: the lateral wall of armature (3) is equipped with the dog, armature (3) and mounting (5) mirror surface are connected, adjusting sleeve (4) and mounting (5) threaded connection, and the screw thread between adjusting sleeve (4) and mounting (5) is the high accuracy screw thread.

3. The structure of an electromagnet air gap limit adjusting device according to claim 1, characterized in that: the hydraulic pressure chamber (7) is a cylinder with a circular ring-shaped cross section, the hydraulic pressure chamber (7) is matched with the piston (8), a plurality of piston rods (9) which use the axis of the armature (3) as a symmetrical shaft are installed at the upper end of the piston (8), and the upper ends of the piston rods (9) and the shell (1) are subjected to sealing treatment.

4. The structure of an electromagnet air gap limit adjusting device according to claim 1, characterized in that: the inner diameter of the adjusting sleeve (4) is smaller than the diameter of the static iron core (2), and the adjusting sleeve (4), the static iron core (2) and the armature (3) are coaxial.

5. The structure of an electromagnet air gap limit adjusting device according to claim 1, characterized in that: the lowest movable point of the piston (8) is higher than the adjusting hole (11), and the highest movable point of the piston (8) is lower than the balancing hole (12).

6. The structure of an electromagnet air gap limit adjusting device according to claim 1, characterized in that: sealing valves are respectively arranged on the adjusting hole (11) and the balancing hole (12), and the adjusting hole (11) and the balancing hole (12) are respectively connected with an injector (13).