CN213864998U - Automatic hoisting equipment based on contact switch - Google Patents
Automatic hoisting equipment based on contact switch Download PDFInfo
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- CN213864998U CN213864998U CN202022387067.9U CN202022387067U CN213864998U CN 213864998 U CN213864998 U CN 213864998U CN 202022387067 U CN202022387067 U CN 202022387067U CN 213864998 U CN213864998 U CN 213864998U
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Abstract
The utility model discloses an automatic hoisting device based on a contact switch, which comprises an electric permanent magnet lifting appliance for lifting workpieces and a connecting device connected with a lifting travelling crane, wherein the electric permanent magnet lifting appliance is movably connected on the connecting device along the vertical direction, and the automatic hoisting device is also provided with a detection device; the electric permanent magnet lifting appliance is provided with a connecting piece, the connecting piece is provided with strip-shaped holes arranged along the vertical direction, and the connecting device is arranged in the strip-shaped holes in a penetrating mode and can move in the strip-shaped holes along the vertical direction; the detection device comprises a contact switch, and the contact switch is arranged at least one end of the strip-shaped hole in the vertical direction. The utility model discloses an automatic lifting device based on contact switch has advantages such as simple and practical, reduction personnel intensity of labour, effectively reduce error and risk and degree of automation height.
Description
Technical Field
The utility model relates to a work piece handling technical field especially relates to an automatic lifting device based on contact switch.
Background
The hoisting equipment is often applied to industries such as steel, logistics, transportation, mechanical manufacturing and the like, wherein the electromagnetic hoisting equipment is widely applied as safe, economic and environment-friendly magnetic conductive material hoisting equipment. Common electromagnetic lifting appliances include permanent magnet type magnetic lifting appliances, electromagnet magnetic lifting appliances, electric permanent magnet lifting appliances and the like.
In the permanent magnet type magnetic lifting appliance, a manual lifting appliance generally utilizes a handle to rotate the direction of a magnetic pole, so that the direction of a magnetic field inside a permanent magnet is changed to suck and discharge materials. This kind of inhale the blowing process and need artifical manual operation, personnel intensity of labour is high, when meetting thinner work pieces such as steel sheet moreover, because the magnetic circuit is unobstructed, can have the unable rotatory condition of handle, difficultly just the operation difficulty. In addition, the magnetic permeability depth of the lifting appliance is not adjustable, and the thin workpiece cannot be lifted in a single piece.
The automatic lifting appliance drives the magnetic poles to rotate by means of the self weight of the lifting appliance to realize material suction and material discharge, the defects of manual lifting appliances are overcome, and the synchronous lifting appliance is difficult to unify and low in practicability when multiple lifting appliances are lifted in a combined mode.
No matter be permanent magnetism type magnetic force hoist, still electro-magnet magnetic force hoist and electric permanent magnetism hoist, all need control through the mode of manual button or remote control, need the staff to control on one side, the human error risk is high, and is difficult to realize automatic handling production.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a simple and practical, reduce personnel intensity of labour, effectively reduce error and risk and degree of automation height based on contact switch's automatic lifting equipment.
In order to solve the technical problem, the utility model provides a technical scheme does:
an automatic hoisting device based on a contact switch comprises an electric permanent magnet lifting appliance for lifting a workpiece and a connecting device connected with a lifting travelling crane, wherein the electric permanent magnet lifting appliance is movably connected to the connecting device along the vertical direction; the electric permanent magnet lifting appliance is provided with a connecting piece, the connecting piece is provided with a strip-shaped hole arranged along the vertical direction, and the connecting device is arranged in the strip-shaped hole in a penetrating manner and can move in the strip-shaped hole along the vertical direction; the detection device comprises a contact switch, and the contact switch is arranged at least one end of the strip-shaped hole in the vertical direction.
As a further improvement of the above technical solution:
automatic lifting device based on contact switch still includes control system, control system includes:
a signal receiving unit: the device is used for receiving the signal of the detection device and sending the signal to the position detection unit;
a position detection unit: the signal receiving unit is used for receiving a signal of the signal receiving unit, detecting the position of the electric permanent magnet lifting appliance and sending an adsorption signal or a release signal to the execution unit according to the condition that the electric permanent magnet lifting appliance is at the adsorption position or the release position;
an execution unit: the permanent magnet lifting appliance is used for controlling the magnetization of the electric permanent magnet lifting appliance and executing the adsorption action according to the adsorption signal, and controlling the demagnetization of the electric permanent magnet lifting appliance and executing the release action according to the release signal.
Automatic lifting device based on contact switch still includes control system, control system includes:
a signal receiving unit: the signal receiving device is used for receiving the signal of the detection device and sending the signal to the execution unit;
an execution unit: the permanent magnet lifting appliance is used for controlling the electric permanent magnet lifting appliance to change the magnetizing or demagnetizing state according to the signal of the signal receiving unit and executing the adsorption or release action.
The control system further comprises:
a height detection unit: the electromagnetic lifting device is used for detecting whether the electric permanent magnet lifting device reaches a set height or not and sending a full magnetic signal to the execution unit when the electric permanent magnet lifting device reaches the set height;
the execution unit receives the signal and controls the electric permanent magnet lifting appliance to set the exciting current to magnetize and adsorb the workpiece to lift, and controls the electric permanent magnet lifting appliance to increase the exciting current until the workpiece is adsorbed fully after receiving the full magnetic signal sent by the height detection unit under the condition of adsorbing the workpiece to lift.
The execution unit includes:
an alarm module: and calculating to obtain the ratio of the magnetic flux of the unit area generated by the set exciting current to the full magnetic flux of the unit area, comparing the ratio with the alarm preset value, and giving an alarm when the ratio is greater than the alarm preset value.
The control system further comprises:
a disengagement monitoring unit: the electromagnetic lifting device is used for receiving signals sent by the signal receiving unit, monitoring the magnetic flux change value of the electric permanent magnet lifting device, and controlling the electric permanent magnet lifting device to descend until the signals sent by the signal receiving unit are received and demagnetized when the magnetic flux suddenly drops.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses an automatic lifting device based on contact switch, including the electric permanent magnetism hoist that is used for the handling work piece and the connecting device who is connected with the handling driving. The automatic hoisting equipment further comprises a detection device which is used for detecting the relative position relation between the electric permanent magnet hoisting tool and the connecting device and feeding back a detection signal to a control system so as to control whether the electric permanent magnet hoisting tool performs adsorption and release actions on the workpiece. Because the electric permanent magnet lifting appliance and the connecting device can move in the vertical direction, the position relation between the electric permanent magnet lifting appliance and the connecting device can be changed when the lifting equipment lifts and falls to the ground.
In the hoisting process, the automatic hoisting equipment ascends, the electric permanent magnet hoisting tool moves downwards relative to the connecting device under the combined action of the self gravity and the gravity of the workpiece adsorbed by the electric permanent magnet hoisting tool, so that the distance between the electric permanent magnet hoisting tool and the connecting device is increased, the detection device can obtain that the hoisting equipment is not in a landing state, and the hoisting equipment is controlled not to be adsorbed or released, so that dangerous accidents are avoided. In the process of falling to the ground, the automatic hoisting equipment descends, the electric permanent magnet lifting appliance stops moving downwards after falling to the ground or other working surfaces, the connecting device continues to descend under the action of gravity until the top of the electric permanent magnet lifting appliance supports the electric permanent magnet lifting appliance, and the distance between the electric permanent magnet lifting appliance and the electric permanent magnet lifting appliance is reduced in the period, so that the detection device can obtain that the hoisting equipment is in the state of falling to the ground, and can control the corresponding adsorption or release operation of the hoisting equipment. The setting mode of the utility model can realize the landing detection of the hoisting equipment through the simple movable connecting mechanism and the gravity action principle, thereby being applied to the automatic hoisting of material workpieces and improving the production efficiency; the operation and control by workers at one side are not needed at all, so that the labor cost and the labor intensity of the workers are greatly reduced, and meanwhile, the risks of misoperation and the like caused by manual operation and control are avoided; and moreover, personnel do not need to operate and control equipment such as a used remote control device, and the manufacturing and maintenance cost is reduced.
The electric permanent magnet lifting appliance is provided with a connecting piece, the connecting piece is provided with strip-shaped holes arranged along the vertical direction, the connecting device is arranged in the strip-shaped holes in a penetrating mode, the strip-shaped holes can move along the vertical direction in the strip-shaped holes, the moving direction of the connecting device can be limited by the vertical strip-shaped holes, the vertical direction movable connection between the electric permanent magnet lifting appliance and the connecting device is achieved through a simple strip-shaped hole structure, the manufacturing cost is low, the requirement on the machining precision is not high, and therefore the manufacturing efficiency is higher.
The detection device comprises a contact switch, and the contact switch is arranged at least one end of the strip-shaped hole in the vertical direction. The contact switch can stably detect the position relation between the connecting device and the electric permanent magnet lifting appliance.
When the contact switch is arranged at the top of the strip-shaped hole, the contact switch is in contact with the connecting device, the connecting device is in contact with the top of the strip-shaped hole, namely the whole hoisting equipment is in a hoisting position, and the hoisting equipment is kept in an adsorption state or a demagnetization state; and contact switch and connecting device contactless then represent connecting device and the top in bar hole contactless, and lifting device is whole to be in the position of falling to the ground promptly, and lifting device can execute absorption or release action this moment.
When the contact switch is arranged at the bottom of the strip-shaped hole, the contact switch is in contact with the connecting device, the connecting device is in contact with the bottom of the strip-shaped hole, namely the whole hoisting equipment is in a landing position, and the hoisting equipment can perform adsorption or release actions; and contact switch and connecting device contactless then represent connecting device and the bottom in bar hole contactless, and lifting device is whole in the position of lifting by crane promptly, and lifting device should keep in adsorption state or release state this moment.
In order to ensure the accuracy of testing result, can all set up contact switch at the top and the bottom in bar hole, avoid the invalid operation that single switch became invalid and leads to, can also verify each other between two contact switch simultaneously, provide dual detection guarantee.
Drawings
FIG. 1 is a schematic structural diagram of an automatic lifting device based on a contact switch;
fig. 2 is a schematic diagram of the positions of the connecting device and the electro-permanent magnetic hanger in the automatic hoisting equipment based on the contact switch.
Illustration of the drawings: 1. an electro-permanent-magnet sling; 11. a connecting member; 111. a strip-shaped hole; 2. a connecting device; 3. a detection device; 31. a contact switch; 4. and (5) hoisting the travelling crane.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully and specifically with reference to the accompanying drawings and preferred embodiments, but the scope of the present invention is not limited to the following specific embodiments.
Example 1:
as shown in fig. 1, the automatic hoisting equipment based on the contact switch of the embodiment includes an electric permanent magnet hanger 1 for lifting a workpiece and a connecting device 2 connected with a lifting traveling crane 4, wherein the electric permanent magnet hanger 1 is movably connected to the connecting device 2 along the vertical direction, and the automatic hoisting equipment further includes a detecting device 3 for detecting the relative position relationship between the electric permanent magnet hanger 1 and the connecting device 2 and feeding back a detection signal to a control system to control whether the electric permanent magnet hanger 1 performs adsorption and release actions on the workpiece. Because the electric permanent magnet lifting appliance 1 and the connecting device 2 can move in the vertical direction, the position relation between the electric permanent magnet lifting appliance and the connecting device can be changed when the lifting equipment is lifted and falls to the ground.
In the hoisting process, the automatic hoisting equipment ascends, the electric permanent magnet hoisting tool 1 moves downwards relative to the connecting device 2 under the combined action of the self gravity and the gravity of the workpiece adsorbed by the electric permanent magnet hoisting tool, so that the distance between the electric permanent magnet hoisting tool and the workpiece is increased, the detection device 3 can obtain that the hoisting equipment is not in a landing state, and the hoisting equipment is controlled not to be adsorbed or released to avoid dangerous accidents. In the process of falling to the ground, automatic lifting equipment descends, and electric permanent magnet lifting appliance 1 can stop moving down after falling to ground or other working surfaces, and connecting device 2 can continue to descend under the action of gravity this moment until electric permanent magnet lifting appliance 1's top produces its support, and the interval between the two reduces, therefore detection device 3 can obtain lifting equipment and be in the state of falling to the ground to can control lifting equipment correspondingly adsorb or release the operation. The arrangement mode of the embodiment can realize the landing detection of the hoisting equipment through a simple movable connection mechanism and a gravity action principle, so that the arrangement mode can be applied to the automatic hoisting of material workpieces, and the production efficiency is improved; the operation and control by workers at one side are not needed at all, so that the labor cost and the labor intensity of the workers are greatly reduced, and meanwhile, the risks of misoperation and the like caused by manual operation and control are avoided; and moreover, personnel do not need to operate and control equipment such as a used remote control device, and the manufacturing and maintenance cost is reduced.
In this embodiment, electric permanent magnetism hoist 1 is equipped with connecting piece 11, is equipped with the bar hole 111 of arranging along vertical direction on the connecting piece 11, and connecting device 2 wears to locate in bar hole 111 to can be along the activity of vertical direction in bar hole 111, vertical bar hole 111 can restrict connecting device 2's moving direction. This embodiment has just realized the vertical direction swing joint between electric permanent magnetism hoist 1 and the connecting device 2 through simple bar hole 111 structure, low in manufacturing cost to it is not high to the machining precision requirement, therefore manufacturing efficiency is higher. In this embodiment, the connecting device 2 is a beam connected to the lifting traveling crane 4, and two ends of the beam penetrate through the strip-shaped holes 111.
In this embodiment, as shown in fig. 2, the detecting device 3 includes a contact switch 31, and the contact switch 31 is disposed at least one end of the strip-shaped hole 111 in the vertical direction. The contact switch 31 can stably detect the position relation between the connecting device 2 and the electro-permanent magnet hanger 1.
When the contact switch 31 is arranged at the top of the strip-shaped hole, the contact switch 31 is in contact with the connecting device 2, which means that the connecting device 2 is in contact with the top of the strip-shaped hole 111, that is, the whole hoisting equipment is in a hoisting position, and at this time, the hoisting equipment is kept in an adsorption state or a demagnetization state; and contact switch 31 does not contact with connecting device 2, then represent that connecting device 2 does not contact with the top of bar hole 111, and lifting device is whole in the position of falling to the ground promptly, and lifting device can carry out absorption or release action this moment.
When the contact switch 31 is arranged at the bottom of the strip-shaped hole, the contact switch 31 is in contact with the connecting device 2, which means that the connecting device 2 is in contact with the bottom of the strip-shaped hole 111, that is, the whole hoisting equipment is in a landing position, and at this time, the hoisting equipment can perform adsorption or release actions; and the contact switch 31 is not in contact with the connecting device 2, which means that the connecting device 2 is not in contact with the bottom of the strip-shaped hole 111, that is, the whole hoisting equipment is in the hoisting position, and at this time, the hoisting equipment should be kept in an adsorption state or a release state.
In this embodiment, in order to ensure the accuracy of testing result, can all set up contact switch 31 at the top and the bottom of bar hole 111, avoid the invalid operation that single switch became invalid and leads to, can also demonstrate mutually between two contact switch 31 simultaneously, provide dual detection guarantee.
In this embodiment, automatic lifting device still includes control system, and control system includes:
a signal receiving unit: the device is used for receiving the signal of the detection device 3 and sending the signal to the position detection unit;
a position detection unit: the signal receiving unit is used for receiving a signal of the signal receiving unit, detecting the position of the electric permanent magnet lifting appliance 1 after receiving the information that the electric permanent magnet lifting appliance 1 falls to the ground so as to determine the position of the lower electric permanent magnet lifting appliance 1, and sending an adsorption signal to the execution unit when the lower electric permanent magnet lifting appliance is positioned at the adsorption position; when the device is at the release position, a release signal is sent to the execution unit; the position of the hoisting equipment does not need to be monitored manually in the setting mode, and the hoisting equipment can automatically identify the position and carry out corresponding operation.
An execution unit: the permanent magnet lifting appliance is used for controlling the electric permanent magnet lifting appliance 1 to magnetize and execute an adsorption action according to the adsorption signal, and controlling the electric permanent magnet lifting appliance 1 to demagnetize and execute a release action according to the release signal.
In this embodiment, the control system further includes:
a height detection unit: the electromagnetic lifting device is used for detecting whether the electric permanent magnet lifting device 1 reaches a set height or not and sending a full magnetic signal to the execution unit when the electric permanent magnet lifting device reaches the set height;
the execution unit receives the adsorption signal sent by the position detection unit and controls the electro-permanent magnet lifting appliance 1 to set the exciting current to magnetize and adsorb the workpiece for lifting, so that the single-piece lifting of the workpiece is ensured, and even if the workpiece is a thin plate-shaped object, the single-piece lifting can be realized by setting the exciting current. When the electric permanent magnet lifting appliance 1 is in the condition of lifting the adsorbed workpieces and receives a full magnetic signal sent by the height detection unit, the electric permanent magnet lifting appliance 1 is represented to lift the workpieces to be lifted to a certain height, and then the electric permanent magnet lifting appliance 1 is controlled to increase exciting current until the workpieces are fully adsorbed. Through the arrangement mode, single piece hoisting of the workpiece is guaranteed, the adsorption force of the electric permanent magnet lifting appliance 1 is far greater than the gravity of the workpiece, certain safety factor is achieved during transportation, dangerous situations such as workpiece separation are prevented, and safety is further improved.
In this embodiment, the magnetizing operation time and the full magnetic operation time of the electric permanent magnet lifting appliance 1 can be generally limited to 0.6 second, so that the lifting can be flexibly and rapidly completed even if the adsorption operation is performed step by step.
In this embodiment, the execution unit includes:
an alarm module: and calculating to obtain the ratio of the magnetic flux generated by the set exciting current in unit area to the full magnetic flux in unit area, comparing the ratio with an alarm preset value, and when the ratio is greater than the alarm preset value, indicating that the full magnetic flux is not multiplied by the improvement of the target compared with the magnetic flux generated by the set exciting current, namely the lifting safety multiple is insufficient, so that the alarm module can give an alarm to remind a worker to check and avoid the risk of separation. When the ratio is smaller than the alarm preset value, the lifting safety multiple is enough, the alarm module does not execute alarm, and the lifting can be continued safely.
In this embodiment, the control system further includes:
a disengagement monitoring unit: the electromagnetic lifting device is used for receiving signals sent by the signal receiving unit and monitoring the magnetic flux change value of the electric permanent magnet lifting tool 1, when the magnetic flux suddenly drops, the fact that a part or all of workpieces lifted by the electric permanent magnet lifting tool 1 are possibly separated is indicated, at the moment, the electric permanent magnet lifting tool 1 can be controlled to drop until the signals sent by the signal receiving unit are received, namely, the electric permanent magnet lifting tool 1 is controlled to fall to the ground, and the workpieces are placed to the ground after demagnetization.
The hoisting method using the automatic hoisting equipment in the embodiment comprises the following steps:
s1: adsorption: the electric permanent magnet lifting appliance 1 and the connecting device 2 are driven by the lifting travelling crane 4 to move to an adsorption position and descend until the detection device 3 detects that the relative position between the electric permanent magnet lifting appliance 1 and the connecting device 2 is on the ground, and a signal is fed back to the control system to control the electric permanent magnet lifting appliance 1 to be magnetized and adsorb workpieces;
s2: moving: the electric permanent magnet lifting appliance 1 and the connecting device 2 are driven by the lifting travelling crane to ascend and move to a release position; the detection device 3 detects that the relative position between the electric permanent magnet lifting appliance 1 and the connecting device 2 is lifting, and feeds back a signal to the control system to control the electric permanent magnet lifting appliance 1 to keep a magnetizing state;
s3: releasing: the electric permanent magnet lifting appliance 1 and the connecting device 2 are driven by the lifting travelling crane 4 to move to a release position and descend until the detection device 3 detects that the relative position between the electric permanent magnet lifting appliance 1 and the connecting device 2 is on the ground, and a signal is fed back to the control system to control the demagnetization of the electric permanent magnet lifting appliance 1 and release a workpiece;
s4: retreating: the electric permanent magnet lifting appliance 1 and the connecting device 2 are driven by the lifting travelling crane 4 to ascend and avoid the release position; the detection device 3 detects that the relative position between the electric permanent magnet lifting appliance 1 and the connecting device 2 is lifting, and feeds back a signal to the control system to control the electric permanent magnet lifting appliance 1 to keep a demagnetization state;
s5: and repeating the steps S1-S4 until all the workpieces to be lifted are lifted. The hoisting method of the embodiment automatically forms a hoisting cycle, thoroughly frees the hands of operators, reduces labor intensity, has simpler steps and is very suitable for automatic implementation.
The embodiment also provides a hoisting method using the automatic hoisting equipment, which comprises the following steps:
s1: the position detection unit sends an adsorption signal to the execution unit after detecting that the electric permanent magnet lifting appliance 1 is at an adsorption position;
s2: the execution unit receives the adsorption signal and then controls the electro-permanent magnetic lifting appliance 1 to set exciting current for magnetization and adsorb the workpieces for lifting, so that the first workpiece to be lifted and other workpieces on the lower part are completely separated, and the lifting of single pieces is realized; the set exciting current is set according to the thickness and weight of the single workpiece in actual conditions, which is not described herein;
s3: the height detection unit sends a full magnetic signal to the execution unit when detecting that the electric permanent magnet lifting appliance 1 reaches a set height after being lifted;
s4: and after receiving the full magnetic signal, the execution unit controls the electro-permanent magnetic lifting appliance 1 to increase exciting current until the workpiece is fully adsorbed, so that the lifting safety is ensured.
Example 4:
the present embodiment is basically the same as embodiment 1, except that the control system of the present embodiment includes:
a signal receiving unit: the signal receiving device is used for receiving the signal of the detection device 3 and sending the signal to the execution unit;
an execution unit: the permanent magnet lifting appliance is used for controlling the electric permanent magnet lifting appliance 1 to change the magnetizing or demagnetizing state according to the signal of the signal receiving unit and executing the adsorption or release action.
Namely, in one lifting cycle stroke: when the electric permanent magnet lifting appliance 1 moves to the adsorption position, the execution unit controls the electric permanent magnet lifting appliance to be kept in a demagnetization state; after the electric permanent magnet lifting appliance 1 falls to the ground at the adsorption position, the signal receiving unit receives a signal sent by the detection device 3, and at the moment, the execution unit controls the electric permanent magnet lifting appliance 1 to change the state, namely, the demagnetization state is changed into the magnetization state. Then, in the process that the electric permanent magnet lifting appliance 1 drives the workpiece to lift and move to the release position, the signal sent by the detection device 3 is invalid, and the execution unit controls the electric permanent magnet lifting appliance 1 to be always kept in the magnetizing state, so that the workpiece is prevented from being separated. When the lifting appliance reaches the releasing position and falls to the ground, the signal receiving unit receives the signal sent by the detection device 3 again, and the execution unit controls the electric permanent magnet lifting appliance 1 to change the state again, namely, the state is changed from the magnetizing state to the demagnetizing state, so that the releasing operation is executed. When the electric permanent magnet lifting appliance 1 is lifted after releasing the workpiece, the signal sent by the detection device 3 is invalid, the execution unit controls the electric permanent magnet lifting appliance 1 to be always kept in a demagnetizing state until the electric permanent magnet lifting appliance reaches the adsorption position again and falls to the ground, and then the operation is repeated to form a lifting cycle.
The control system in the embodiment directly judges whether the state of the electro-permanent-magnet lifting appliance 1 needs to be changed or not through the detection device 3, so that the judging process is simpler, and the lifting operation steps are further simplified.
The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. For those skilled in the art, the modifications and changes obtained without departing from the technical idea of the present invention should be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides an automatic lifting device based on contact switch, is including electric permanent magnetism hoist (1) that are used for the handling work piece and connecting device (2) of being connected with handling driving (4), its characterized in that: the electric permanent magnet lifting appliance (1) is movably connected to the connecting device (2) in the vertical direction, and the automatic lifting equipment further comprises a detection device (3) which is used for detecting the relative position relation between the electric permanent magnet lifting appliance (1) and the connecting device (2) and feeding back a detection signal to a control system so as to control whether the electric permanent magnet lifting appliance (1) performs adsorption and release actions on a workpiece; the electric permanent magnet lifting appliance (1) is provided with a connecting piece (11), the connecting piece (11) is provided with a strip-shaped hole (111) which is arranged along the vertical direction, and the connecting device (2) penetrates through the strip-shaped hole (111) and can move in the strip-shaped hole (111) along the vertical direction; the detection device (3) comprises a contact switch (31), and the contact switch (31) is arranged at least one end of the strip-shaped hole (111) in the vertical direction.
2. The automatic hoisting device based on the contact switch of claim 1, wherein: still include control system, control system includes:
a signal receiving unit: the device is used for receiving the signal of the detection device (3) and sending the signal to the position detection unit;
a position detection unit: the signal receiving unit is used for receiving a signal of the signal receiving unit, detecting the position of the electric permanent magnet lifting appliance (1), and sending an adsorption signal or a release signal to the execution unit according to the adsorption position or the release position of the electric permanent magnet lifting appliance (1);
an execution unit: the permanent magnet lifting appliance is used for controlling the electric permanent magnet lifting appliance (1) to be magnetized and execute adsorption action according to the adsorption signal, and controlling the electric permanent magnet lifting appliance (1) to be demagnetized and execute release action according to the release signal.
3. The automatic hoisting device based on the contact switch of claim 1, wherein: still include control system, control system includes:
a signal receiving unit: the signal receiving device is used for receiving the signal of the detection device (3) and sending the signal to the execution unit;
an execution unit: the permanent magnet lifting appliance is used for controlling the electric permanent magnet lifting appliance (1) to change the magnetizing or demagnetizing state according to the signal of the signal receiving unit, and performing adsorption or release action.
4. The automatic hoisting equipment based on the contact switch of claim 2 or 3, wherein: the control system further comprises:
a height detection unit: the electromagnetic lifting device is used for detecting whether the electric permanent magnet lifting appliance (1) reaches a set height or not and sending a full magnetic signal to the execution unit when the electric permanent magnet lifting appliance reaches the set height;
the execution unit receives the signal and controls the electric permanent magnet lifting appliance (1) to set exciting current for magnetizing and adsorb the workpiece for lifting, and controls the electric permanent magnet lifting appliance (1) to increase exciting current until the workpiece is adsorbed fully after receiving a full magnetic signal sent by the height detection unit under the condition of adsorbing the workpiece for lifting.
5. The automatic hoisting equipment based on the contact switch of claim 4, wherein: the execution unit includes:
an alarm module: and calculating to obtain the ratio of the magnetic flux of the unit area generated by the set exciting current to the full magnetic flux of the unit area, comparing the ratio with the alarm preset value, and giving an alarm when the ratio is greater than the alarm preset value.
6. The automatic hoisting equipment based on the contact switch of claim 2 or 3, wherein: the control system further comprises:
a disengagement monitoring unit: the electromagnetic control device is used for receiving signals sent by the signal receiving unit, monitoring the magnetic flux change value of the electric permanent magnet lifting appliance (1), and controlling the electric permanent magnet lifting appliance (1) to descend until the signals sent by the signal receiving unit are received and demagnetized when the magnetic flux suddenly drops.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022387067.9U CN213864998U (en) | 2020-10-23 | 2020-10-23 | Automatic hoisting equipment based on contact switch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022387067.9U CN213864998U (en) | 2020-10-23 | 2020-10-23 | Automatic hoisting equipment based on contact switch |
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| CN213864998U true CN213864998U (en) | 2021-08-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112479001A (en) * | 2020-10-23 | 2021-03-12 | 株洲悍威磁电科技有限公司 | Automatic hoisting equipment, hoisting method and hoisting method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112479001A (en) * | 2020-10-23 | 2021-03-12 | 株洲悍威磁电科技有限公司 | Automatic hoisting equipment, hoisting method and hoisting method |
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