CN218664929U

CN218664929U - Electromagnetic crane

Info

Publication number: CN218664929U
Application number: CN202222239574.7U
Authority: CN
Inventors: 杜信宝; 辛鹏飞; 周阳; 张磊; 寇振伟; 安杨; 葛庆辉; 张玄哲
Original assignee: Beijing Shougang Co Ltd
Current assignee: Beijing Shougang Co Ltd
Priority date: 2022-08-25
Filing date: 2022-08-25
Publication date: 2023-03-21
Anticipated expiration: 2032-08-25

Abstract

The utility model belongs to the technical field of the electromagnetism hangs, a electromagnetism hangs is disclosed, include: the device comprises a driving mechanism, a bracket, a pull rope, a lifting lug, a sliding fixing seat, a chain, a magnetic head, a first in-place sensor, a second in-place sensor and a PLC (programmable logic controller); the driving mechanism is arranged on the bracket and is connected with the lifting lug through a pull rope, the sliding fixing seat is vertically and slidably arranged on the lifting lug, and the magnetic head is connected to the sliding fixing seat through a chain; the first in-place sensor is arranged between the lifting lug and the sliding fixing seat; the second in-place sensor is arranged on the lifting lug and used for sensing the in-place state of the lifted steel coil; the PLC is connected with the first in-place sensor, the second in-place sensor and the driving mechanism. The utility model provides an electromagnetism hangs the lift that can realize the electromagnetism and hang, establishes and contact magnetic field's automated control, promotes operating efficiency and reliability.

Description

Electromagnetic crane

Technical Field

The utility model relates to an electromagnetism hangs technical field, in particular to electromagnetism hangs.

Background

The electromagnetic crane is widely applied to the steel coil allocation and transportation operation of a production line and mainly comprises a driving mechanism, a supporting frame, a lifting lug, a magnetic head and the like. Usually, the operation is performed manually by an operator, but in the time control of lifting amplitude and establishment and elimination of a magnetic field, the judgment is often needed according to experience, the automation degree is the first, the operation efficiency is low, the fluency is poor, and certain safety risks exist.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electromagnetism hangs, the electromagnetism of solving among the prior art hangs degree of automation low, and magnetic head lifting precision establishes and eliminates the poor technical problem of opportunity control in magnetic field.

In order to solve the technical problem, the utility model provides an electromagnetism hangs, include: the device comprises a driving mechanism, a bracket, a pull rope, a lifting lug, a sliding fixing seat, a chain, a magnetic head, a first in-place sensor, a second in-place sensor and a PLC (programmable logic controller);

the driving mechanism is arranged on the bracket and is connected with the lifting lug through the inhaul cable, the sliding fixing seat is vertically and slidably arranged on the lifting lug, and the magnetic head is connected to the sliding fixing seat through the chain;

the first in-place sensor is arranged between the lifting lug and the sliding fixing seat;

the second in-place sensor is arranged on the lifting lug and used for sensing the in-place state of the lifted steel coil;

the PLC is connected with the first in-place sensor, the second in-place sensor and the driving mechanism.

Further, the electromagnetic crane further comprises: a third in-position sensor;

the third in-place sensor is arranged on the lifting lug and used for sensing the in-place state of the lifted steel coil;

and the third in-place sensor is connected with the PLC.

Further, the chain is a plurality of chains which are uniformly arranged.

Further, the number of the chain is four.

Furthermore, a limiting slide rail is arranged on the lifting lug, a guide slide block is arranged on the sliding fixing seat, and the guide slide block is slidably arranged on the limiting slide rail.

Furthermore, the top end of the chain is movably connected with the sliding fixing seat through a pin shaft.

Furthermore, the bottom end of the chain is movably connected with the sliding fixing seat through a pin shaft.

Further, the first in-position sensor, the second in-position sensor, and the third in-position sensor are optical sensors.

Further, the triggering range of the second in-position sensor is 20cm.

Further, the triggering range of the second in-position sensor is 10cm.

One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

according to the electromagnetic crane provided by the embodiment of the application, the magnetic head is vertically and slidably fixed on the lifting lug through the sliding fixing seat, the first in-place sensor is arranged to detect the relative sliding between the sliding fixing seat and the lifting lug, so that the steel coil falling and the falling of the magnetic head are detected, the adsorption state of the steel coil is completed, the PLC is used for controlling the driving device to stop falling, the PLC is used for starting to pull or contact the magnetic field of the magnetic head, and the steel coil is released; the distance between the lifting lug and the steel coil is detected by the second in-place sensor, so that the establishment of a magnetic field is controlled, the steel coil is magnetically adsorbed, and the steel coil is prepared for lifting. Automatic control of descending, lifting, magnetic field establishment and release is realized through automatic position and in-place detection.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of a sensor arrangement of an electromagnetic crane according to an embodiment of the present invention;

fig. 2 is a schematic block diagram of a control architecture of the electromagnetic crane in fig. 1.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that all the directional indications in the embodiments of the present application are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

The following disclosure provides many different embodiments or examples for implementing different features of the application. To simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, which have been repeated for purposes of simplicity and clarity and do not in themselves dictate a relationship between the various embodiments and/or arrangements discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.

The present application is described below with reference to specific embodiments in conjunction with the attached drawings.

The embodiment of the application provides an electromagnetism hangs, solves the electromagnetism among the prior art and hangs degree of automation low, and magnetic head lifting accuracy establishes and eliminates the poor technical problem of opportunity control in magnetic field.

In order to better understand the technical solutions, the technical solutions will be described in detail below with reference to the drawings and the specific embodiments of the present disclosure, and it should be understood that the specific features of the embodiments and examples of the present disclosure are detailed descriptions of the technical solutions of the present disclosure, but not limitations of the technical solutions of the present disclosure, and the technical features of the embodiments and examples of the present disclosure may be combined with each other without conflict.

Referring to fig. 1 and 2, the embodiment of the application provides an electromagnetic crane, and the working state of the electromagnetic crane is automatically controlled by the arrangement and design of an in-place sensor and a magnetic head lifting lug structure and the cooperation of a PLC programmable controller, so that the automation degree and the operation efficiency are greatly improved.

Specifically, the electromagnetic crane comprises: the device comprises a driving mechanism, a bracket, a pull rope, a lifting lug 11, a sliding fixed seat 12, a chain 13, a magnetic head 14, a first in-position sensor 21, a second in-position sensor 22 and a PLC (programmable logic controller) 24.

The driving mechanism is arranged on the bracket, the driving mechanism is connected with the lifting lug 11 through the inhaul cable, the sliding fixing seat 12 is vertically and slidably arranged on the lifting lug 11, and the magnetic head 14 is connected to the sliding fixing seat 12 through the chain 13; so that the lifting lug 11, the sliding fixing seat 12, the chain 13 and the magnetic head 14 naturally droop when being assembled on site.

Therefore, when the magnetic head 14 is in a suspended state, the sliding holder 12 is located at the bottom end of the sliding stroke, and this state is maintained in either an unloaded state or a loaded state.

Under the no-load state, the magnetic head 14 falls onto the steel coil to complete adsorption, waits for lifting and hoisting, and generates relative position change between the lifting lug 11 and the sliding fixing seat 12 along with continuous falling; therefore, a trigger signal can be formed by detecting the relative position change between the lifting lug 11 and the sliding fixing seat 12, so as to judge whether the magnetic adsorption of the steel coil is completed. Of course, the magnetic field build-up for the head 14 can also be used as a reference signal, and a magnetic field can be built up.

In the loading state, the magnetic head 14 magnetically adsorbs the steel coil 30, the steel coil 30 is lowered, and when the steel coil 30 falls to the ground stably, the relative position between the lifting lug 11 and the sliding fixing seat 12 changes; therefore, a trigger signal can be formed by detecting a relative position change between the lifting lug 11 and the sliding fixing seat 12, so as to determine whether the lower part of the steel coil is completed, and further, the magnetic field of the magnetic head 14 can be released.

For this purpose, the first position sensor 21 may be disposed between the lifting lug 11 and the sliding holder 12.

In order to improve the efficiency of magnetic field establishment, can also set up the second sensor 22 that targets in place on the lug 11 for detect the distance of coil of strip, set for specific distance promptly and be the trigger condition, work as the lug 11 with the magnetic head 14 whereabouts, when reaching the distance of setting for with coil of strip 30, magnetic head 14 establishes the magnetic field, draws absorption coil of strip 30, can be nimble high-efficient stable realization coil of strip absorption. For this purpose, the second in-place sensor 22 may be disposed on the lifting lug 11 to sense the in-place state of the lifting steel coil 30; thereby establishing a magnetic field in advance without waiting until the magnetic head falls onto the steel coil 30, thereby improving the operation efficiency. Of course, the trigger signal of the first sensor 21 can be matched to realize double triggering, so that the reliability of automatic magnetic adsorption is ensured.

In order to realize automatic position detection and automatic control of lifting, falling, magnetic field establishment and release, the PLC 24 is connected with the first in-place sensor 21 and the second in-place sensor 22 to realize in-place detection, and the PLC 24 is connected with the driving mechanism to realize the control of the lifting, falling and magnetic field establishment and release of the magnetic head 14.

In order to further optimize the moving stability of the magnetic head 14 and reduce the vibration and the swing amplitude, a third in-place sensor 23 may be further disposed on the lifting lug 11 to detect the distance from the steel coil 30 for controlling the falling speed, thereby realizing two-stage variable speed falling.

Namely, the third in-place sensor 23 is arranged on the lifting lug 11 and connected with the PLC 24 to sense the in-place state of the lifted steel coil; and the preset triggering distance from the third in-place sensor 23 to the steel coil 30 is greater than the preset triggering distance from the second in-place sensor 22, so that when the magnetic head 14 falls to a certain distance, the falling speed can be reduced, and the steel coil 30 is prevented from being impacted by inertia due to too high speed.

In order to realize stable traction, the chain 13 is a plurality of chains which are uniformly arranged; the specific number may be set to four.

In order to facilitate the in-place detection of the first in-place sensor 21, a limiting slide rail is arranged on the lifting lug 11, and a guide slide block is arranged on the sliding fixing seat 12, and the guide slide block is slidably arranged on the limiting slide rail to limit the swing of the guide slide block and influence the in-place detection.

In order to reduce the excessive wear of the chain 13, the top end of the chain 13 is movably connected with the sliding fixing seat 12 through a pin shaft. The bottom end of the chain 13 is movably connected with the sliding fixed seat 12 through a pin shaft.

Generally, the first in-position sensor 21, the second in-position sensor 22, and the third in-position sensor 23 are optical sensors.

Further, the triggering range of the second in-place sensor is 20cm; the triggering range of the second in-position sensor is 10cm.

In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application.

In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between the embodiments may be combined with each other, but must be based on the realization of the technical solutions by a person skilled in the art, and when the technical solutions are contradictory to each other or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope claimed in the present application.

In the description of the present invention, unless otherwise expressly specified or limited, the first feature "on" or "under" the second feature may include both the first and second features being in direct contact, and may also include the first and second features being in contact, not being in direct contact, but rather being in contact with each other via additional features between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification can be combined and combined by a person skilled in the art

While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. An electromagnetic crane, comprising: the device comprises a driving mechanism, a bracket, a pull rope, a lifting lug, a sliding fixing seat, a chain, a magnetic head, a first in-place sensor, a second in-place sensor and a PLC (programmable logic controller);

2. The electromagnetic crane according to claim 1, further comprising: a third in-position sensor;

and the third in-place sensor is connected with the PLC.

3. The electromagnetic hoist of claim 1, wherein the chain is a plurality of chains arranged uniformly.

4. The electromagnetic crane according to claim 3, wherein said chains are four in number.

5. The electromagnetic crane according to claim 3, wherein the lifting lug is provided with a limiting slide rail, the sliding holder is provided with a guiding slide block, and the guiding slide block is slidably disposed on the limiting slide rail.

6. The electromagnetic crane according to claim 1, wherein the top end of the chain is movably connected with the sliding fixing seat through a pin shaft.

7. The electromagnetic crane according to claim 6, wherein the bottom end of said chain is movably connected to said sliding mount by a pin.

8. The electromagnetic crane of claim 2 wherein said first in-position sensor, said second in-position sensor and said third in-position sensor are optical sensors.

9. The electromagnetic crane according to claim 8, wherein the triggering range of the second position sensor is 20cm.

10. The electromagnetic crane of claim 9 wherein the second in-position sensor has a trigger range of 10cm.