CN113264463A - Industrial engineering is carried with crane protection pivot based on electromagnetic damping principle - Google Patents
Industrial engineering is carried with crane protection pivot based on electromagnetic damping principle Download PDFInfo
- Publication number
- CN113264463A CN113264463A CN202110551940.XA CN202110551940A CN113264463A CN 113264463 A CN113264463 A CN 113264463A CN 202110551940 A CN202110551940 A CN 202110551940A CN 113264463 A CN113264463 A CN 113264463A
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- Prior art keywords
- rotating shaft
- fixedly connected
- wall
- industrial engineering
- electromagnetic damping
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/04—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes actuated by centrifugal force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/026—Fluid-resistance brakes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/24—Operating devices
Abstract
The invention relates to the technical field of industrial engineering transportation, and discloses a crane protection rotating shaft for industrial engineering transportation based on an electromagnetic damping principle. This carry with crane protection pivot based on electromagnetic damping principle industrial engineering, drive the centrifugal piece through the pivot and move, the centrifugal piece drives the motion of dielectric medium board, thereby the rethread reset spring uses with the cooperation of negative plate and reaches the effect of slowing down, the coil is in complete closure state this moment, the motion of cutting magnetic induction line takes place for the magnetic pole of coil and magnetic ring this moment, because the magnetic flux that the coil pierces through changes, the coil produces induced-current, the produced magnetic field of this electric current can hinder the relative motion of pivot, thereby the purpose of reducing speed is realized to the countershaft.
Description
Technical Field
The invention relates to the technical field of industrial engineering transportation, in particular to a crane protection rotating shaft for industrial engineering transportation based on an electromagnetic damping principle.
Background
In modern engineering, various engineering operations need to be optimized by applying the content of industrial engineering, wherein during the industrial engineering operations of conveying materials and the like, a hoisting device is often used, a winch of the conventional hoisting device is generally driven by a motor serving as a power source to lift materials in the advancing direction, but the conventional hoisting equipment is not provided with a protection device, so that safety accidents are easily caused.
Because current hoisting accessory power is single, consequently when carrying out the hoist and mount, the condition that power is not enough can appear to influence the transportation of material, if the material of carrying the hoist turns around in the loop wheel machine pivot that appears more easily, thereby causes the material to drop, simultaneously because the lifting rope operation in the pivot is more unstable, receiving and releasing the in-process and taking place the skew easily, thereby can cause the pivot stall to lead to the material to drop and cause the incident.
Therefore, we propose a crane for industrial engineering transportation based on the electromagnetic damping principle to protect the rotating shaft to solve the above problems.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a crane protection rotating shaft for industrial engineering conveying based on an electromagnetic damping principle, which has the advantages of simple operation, real-time speed-limiting protection and emergency braking on the crane rotating shaft, and solves the problem that the traditional equipment does not have the speed-limiting protection, so that a lifting rope falls off to cause material falling.
(II) technical scheme
In order to realize the purposes of speed limiting protection and emergency braking of the rotating shaft of the crane in real time by simple operation, the invention provides the following technical scheme: a crane protection rotating shaft for industrial engineering transportation based on an electromagnetic damping principle comprises a shell, wherein a magnetic ring is fixedly connected to the front side of the shell, a rotating shaft is movably connected to the inner wall of the middle of the magnetic ring, an electric push rod is fixedly connected to the inner wall of the middle of the rotating shaft, a coil is fixedly connected to the inner wall of the middle of the rotating shaft, a heating sheet is fixedly connected to the inner wall of the middle of the magnetic ring, sodium azide is fixedly connected to the inner wall of the middle of the magnetic ring, a speed reducing sheet is movably connected to the inner wall of the middle of the magnetic ring, a positioning spring is fixedly connected to the outer side of the speed reducing sheet, a conducting electrode column is fixedly connected to the outer side of the coil, an air bag is fixedly connected to the inner wall of the middle of the rotating shaft, a metal sheet is fixedly connected to the outer side of the electric push rod, a positive plate is fixedly connected to the inner wall of the middle of the rotating shaft, a piezoresistor is fixedly connected to the inner wall of the middle of the rotating shaft, a negative plate is fixedly connected to the inner wall of the middle of the rotating shaft, a stationary contact is fixedly connected to the inner wall of the middle of the rotating shaft, a centrifugal block is movably connected to the rotating shaft, the inner wall of the middle part of the centrifugal block is fixedly connected with a dielectric plate, the inner side of the centrifugal block is fixedly connected with a return spring, and the outer side of the centrifugal block is fixedly connected with a movable contact.
Preferably, the inner wall of the middle of the magnetic ring is provided with a movable groove matched with the speed reduction piece, the middle of the magnetic ring is provided with a shaft hole matched with the rotating shaft, and the speed reduction piece moves inwards along the inner wall of the movable groove under the action of sodium azide, so that the speed reduction piece is tightly attached to the outer side of the rotating shaft, and the speed reduction protection effect is achieved.
Preferably, the inner wall of the middle part of the rotating shaft is provided with a groove matched with the electric push rod, the middle part of the rotating shaft is provided with a clamping groove matched with the coil, the electric push rod is electrified under the action of the piezoresistor to stretch outwards and drive the metal sheet to move outwards, so that the air bag is extruded, and the conducting electrode column moves inwards under the action of air pressure to completely close the coil.
Preferably, the size of the speed reduction piece is smaller than that of the magnetic ring, the inner side of the speed reduction piece is rough, when the speed reduction piece moves inwards under the action of air pressure and is in contact with the outer side of the rotating shaft, the friction force between the speed reduction piece and the rotating shaft is increased due to the inner side roughness of the speed reduction piece, and therefore the rotating speed of the rotating shaft is reduced.
Preferably, the metal sheet outside is seted up with the initial condition that the draw-in groove of leading electrode post looks adaptation and metal sheet and leading electrode post are in the separation state, leads electrode post and extrudees to the inboard under the effect of gasbag to with the draw-in groove joint in the metal sheet outside.
Preferably, the size of the return spring is smaller than that of the centrifugal block, the outer side of the return spring is fixedly connected with the inner wall of the centrifugal groove, the return spring mainly plays a role in returning and stretching the centrifugal block, and when the rotating shaft rotates at an excessively high speed, the centrifugal force borne by the centrifugal block is larger than the traction force of the return spring at the moment to drive the dielectric plate to move outwards.
Preferably, the size of the dielectric plate is larger than the size of the negative plate and the size of the return spring, the negative plate and the size of the return spring are the same, and the dielectric plate mainly plays a role in controlling the relative area of the negative plate and the return spring, so that the working state of the piezoresistor is controlled.
Preferably, the size of the movable contact is smaller than that of the centrifugal block, the outer side of the movable contact is provided with a latch matched with the fixed contact, and when the centrifugal block is subjected to a larger centrifugal force, the movable contact is electrically contacted with the fixed contact, so that the heating piece is heated to enable the sodium azide to react.
(III) advantageous effects
Compared with the prior art, the invention provides a crane protection rotating shaft for industrial engineering conveying based on an electromagnetic damping principle, which has the following beneficial effects:
1. this carry with crane protection pivot based on electromagnetic damping principle industrial engineering, drive the centrifugal piece through the pivot and move, the centrifugal piece drives the motion of dielectric medium board, thereby the rethread reset spring uses with the cooperation of negative plate and reaches the effect of slowing down, the coil is in complete closure state this moment, the motion of cutting magnetic induction line takes place for the magnetic pole of coil and magnetic ring this moment, because the magnetic flux that the coil pierces through changes, the coil produces induced-current, the produced magnetic field of this electric current can hinder the relative motion of pivot, thereby the purpose of reducing speed is realized to the countershaft.
2. This carry with crane protection pivot based on electromagnetic damping principle industrial engineering, drive the movable contact motion through the centrifugal piece, the movable contact drives the stationary contact operation, the cooperation of rethread heating plate and sodium azide is used, thereby reach emergency braking and realize the effect of protection, if the rotational speed of pivot is too fast when surpassing preset's scope, the movable contact and the stationary contact point in the centrifugal piece outside this moment contact, thereby make the heating plate produce the heat, thereby make sodium azide take place violent reaction and produce a large amount of gases, with the reduction gear piece inboard extrusion and the contact of pivot outside, produce the friction and make the pivot stop fast.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partially enlarged view of the portion A of FIG. 1 according to the present invention;
FIG. 3 is a partially enlarged view of the portion B shown in FIG. 1 according to the present invention;
FIG. 4 is a schematic view of a partially enlarged structure of the portion C in FIG. 1 according to the present invention.
In the figure: 1. a housing; 2. a magnetic ring; 3. a rotating shaft; 4. an electric push rod; 5. a coil; 6. a heat generating sheet; 7. sodium azide; 8. a deceleration sheet; 9. a positioning spring; 10. a conductive electrode column; 11. an air bag; 12. a metal sheet; 13. a return spring; 14. a dielectric plate; 15. a positive plate; 16. a centrifugal block; 17. a stationary contact; 18. a movable contact; 19. a voltage dependent resistor; 20. and a negative plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.
Referring to fig. 1-4, a crane protection rotating shaft for industrial engineering transportation based on electromagnetic damping principle comprises a housing 1, a magnetic ring 2 is fixedly connected to the front of the housing 1, a movable groove matched with a speed reduction sheet 8 is formed in the inner wall of the middle of the magnetic ring 2, a shaft hole matched with a rotating shaft 3 is formed in the middle of the magnetic ring 2, when the speed reduction sheet 8 moves inwards along the inner wall of the movable groove under the action of sodium azide 7, the speed reduction sheet 8 is tightly attached to the outer side of the rotating shaft 3, so that the speed reduction protection effect is achieved, the rotating shaft 3 is movably connected to the inner wall of the middle of the magnetic ring 2, a groove matched with an electric push rod 4 is formed in the inner wall of the middle of the rotating shaft 3, a clamping groove matched with a coil 5 is formed in the middle of the rotating shaft 3, the electric push rod 4 is electrically energized to extend outwards under the action of a piezoresistor 19 to drive a metal sheet 12 to move outwards, so that an air bag 11 is extruded, the conductive electrode column 10 moves inwards under the action of air pressure so as to completely close the coil 5, the inner wall of the middle part of the rotating shaft 3 is fixedly connected with an electric push rod 4, and the inner wall of the middle part of the rotating shaft 3 is fixedly connected with the coil 5;
the inner wall of the middle of the magnetic ring 2 is fixedly connected with a heating piece 6, the inner wall of the middle of the magnetic ring 2 is fixedly connected with sodium azide 7, the inner wall of the middle of the magnetic ring 2 is movably connected with a speed reduction piece 8, the size of the speed reduction piece 8 is smaller than that of the magnetic ring 2, the inner side of the speed reduction piece 8 is rough, when the speed reduction piece 8 moves inwards under the action of air pressure and contacts with the outer side of the rotating shaft 3, the friction force between the speed reduction piece 8 and the rotating shaft 3 is increased due to the rough inner side of the speed reduction piece 8, so that the rotating speed of the rotating shaft 3 is reduced, the outer side of the speed reduction piece 8 is fixedly connected with a positioning spring 9, the outer side of the coil 5 is fixedly connected with a conductive electrode column 10, the inner wall of the middle of the rotating shaft 3 is fixedly connected with an air bag 11, the outer side of the electric push rod 4 is fixedly connected with a metal sheet 12, the outer side of the metal sheet 12 is provided with a clamping groove matched with the conductive electrode column 10, and the metal sheet 12 is in a separation state with the initial state of the conductive electrode column 10;
the conductive electrode column 10 is extruded inwards under the action of the air bag 11 and is clamped with a clamping groove on the outer side of the metal sheet 12, the inner wall of the middle part of the rotating shaft 3 is fixedly connected with a positive plate 15, the inner wall of the middle part of the rotating shaft 3 is fixedly connected with a piezoresistor 19, the inner wall of the middle part of the rotating shaft 3 is fixedly connected with a negative plate 20, the inner wall of the middle part of the rotating shaft 3 is fixedly connected with a stationary contact 17, the inner wall of the middle part of the rotating shaft 3 is movably connected with a centrifugal block 16, the inner wall of the middle part of the centrifugal block 16 is fixedly connected with a dielectric plate 14, the size of the dielectric plate 14 is larger than that of the negative plate 20 and the reset spring 13, the negative plate 20 and the reset spring 13 are the same in size, the dielectric plate 14 mainly plays a role in controlling the relative area of the negative plate 20 and the reset spring 13, so as to control the working state of the piezoresistor 19, and the reset spring 13 is fixedly connected on the inner side of the centrifugal block 16;
the size of the reset spring 13 is smaller than that of the centrifugal block 16, the outer side of the reset spring 13 is fixedly connected with the inner wall of the centrifugal groove, the reset spring 13 mainly plays a role in resetting and stretching the centrifugal block 16, when the rotating speed of the rotating shaft 3 is too high, the centrifugal force borne by the centrifugal block 16 is larger than the traction force of the reset spring 13 at the moment, the dielectric plate 14 is driven to move outwards, the movable contact 18 is fixedly connected to the outer side of the centrifugal block 16, the size of the movable contact 18 is smaller than that of the centrifugal block 16, the outer side of the movable contact 18 is provided with a latch matched with the fixed contact 17, when the centrifugal force borne by the centrifugal block 16 is larger, the movable contact 18 is electrically contacted with the fixed contact 17 at the moment, and therefore the heating plate 6 is heated to enable the sodium azide 7 to react.
The working principle is as follows: when the crane is in a normal operation state, the rotating shaft 3 rotates along the shaft hole in the middle of the magnetic ring 2, the coil 5 is in an open circuit state, the centrifugal block 16 is subjected to a centrifugal force smaller than the traction force of the return spring 13, so that dielectric plate 14 is not relatively displaced, movable contact 18 is not in contact with stationary contact 17, so that the speed reduction piece 8 is at the initial position under the action of the positioning spring 9, when the rotating shaft 3 is in a high-speed running state during the running process of the crane due to overweight or overload, the centrifugal block 16 is subjected to a centrifugal force greater than the traction force of the return spring 13 so that the centrifugal block 16 moves along the inner wall of the centrifugal groove to the outside, dielectric plate 14 is driven to move outwards, the relative position of dielectric plate 14 is shifted, the relative area of positive plate 15 and negative plate 20 is changed and gradually increased, and the maximum path voltage of piezoresistor 19 is reached;
the electric push rod 4 is electrified, the electric push rod 4 stretches towards the outer side to drive the metal sheet 12 to move after being electrified, so that the air bag 11 is extruded, the air bag 11 is extruded under pressure, the conducting electrode pole 10 moves towards the inner side under the action of air pressure and is clamped with the clamping groove on the outer side of the metal sheet 12, the coil 5 is in a completely closed state at the moment, the coil 5 and the magnetic pole of the magnetic ring 2 move to cut a magnetic induction line, the coil 5 generates induction current due to the change of magnetic flux penetrated by the coil 5, the magnetic field generated by the current can block the relative movement of the rotating shaft 3, so that the purpose of reducing the speed of the rotating shaft 3 is realized, if the rotating speed of the rotating shaft 3 exceeds the preset range too fast, the movable contact 18 on the outer side of the centrifugal block 16 is contacted with the fixed contact 17 at the moment, so that the heating sheet 6 generates heat, so that the sodium azide 7 reacts violently and generates a large amount of gas, the decelerating sheet 8 is pressed inwards to contact with the outer side of the rotating shaft 3, friction is generated to enable the rotating shaft 3 to stop rapidly, and therefore the purpose of protection is achieved.
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 (8)
1. The utility model provides a based on electromagnetic damping principle industrial engineering is carried with crane protection pivot, includes shell (1), its characterized in that: the front surface of the shell (1) is fixedly connected with a magnetic ring (2), the middle inner wall of the magnetic ring (2) is movably connected with a rotating shaft (3), the middle inner wall of the rotating shaft (3) is fixedly connected with an electric push rod (4), the middle inner wall of the rotating shaft (3) is fixedly connected with a coil (5), the middle inner wall of the magnetic ring (2) is fixedly connected with a heating sheet (6), the middle inner wall of the magnetic ring (2) is fixedly connected with sodium azide (7), the middle inner wall of the magnetic ring (2) is movably connected with a speed reduction sheet (8), the outer side of the speed reduction sheet (8) is fixedly connected with a positioning spring (9), the outer side of the coil (5) is fixedly connected with a conducting electrode column (10), the middle inner wall of the rotating shaft (3) is fixedly connected with an air bag (11), the outer side of the electric push rod (4) is fixedly connected with a metal sheet (12), the middle inner wall of the rotating shaft (3) is fixedly connected with a positive plate (15), and the middle inner wall of the rotating shaft (3) is fixedly connected with a piezoresistor (19), the inner wall of the middle part of the rotating shaft (3) is fixedly connected with a negative plate (20), the inner wall of the middle part of the rotating shaft (3) is fixedly connected with a stationary contact (17), the inner wall of the middle part of the rotating shaft (3) is movably connected with a centrifugal block (16), the inner wall of the middle part of the centrifugal block (16) is fixedly connected with a dielectric plate (14), the inner side of the centrifugal block (16) is fixedly connected with a reset spring (13), and the outer side of the centrifugal block (16) is fixedly connected with a movable contact (18).
2. The industrial engineering transportation crane protection rotating shaft based on the electromagnetic damping principle is characterized in that: the inner wall of the middle part of the magnetic ring (2) is provided with a movable groove matched with the speed reduction sheet (8), and the middle part of the magnetic ring (2) is provided with a shaft hole matched with the rotating shaft (3).
3. The industrial engineering transportation crane protection rotating shaft based on the electromagnetic damping principle is characterized in that: the inner wall of the middle part of the rotating shaft (3) is provided with a groove matched with the electric push rod (4), and the middle part of the rotating shaft (3) is provided with a clamping groove matched with the coil (5).
4. The industrial engineering transportation crane protection rotating shaft based on the electromagnetic damping principle is characterized in that: the size of the decelerating sheet (8) is smaller than that of the magnetic ring (2), and the inner side of the decelerating sheet (8) is rough.
5. The industrial engineering transportation crane protection rotating shaft based on the electromagnetic damping principle is characterized in that: the outer side of the metal sheet (12) is provided with a clamping groove matched with the conductive electrode column (10), and the metal sheet (12) and the conductive electrode column (10) are in a separated state in an initial state.
6. The industrial engineering transportation crane protection rotating shaft based on the electromagnetic damping principle is characterized in that: the size of the return spring (13) is smaller than that of the centrifugal block (16), and the outer side of the return spring (13) is fixedly connected with the inner wall of the centrifugal groove.
7. The industrial engineering transportation crane protection rotating shaft based on the electromagnetic damping principle is characterized in that: the size of the dielectric plate (14) is larger than that of the negative plate (20) and the return spring (13), and the size of the negative plate (20) is the same as that of the return spring (13).
8. The industrial engineering transportation crane protection rotating shaft based on the electromagnetic damping principle is characterized in that: the size of the movable contact (18) is smaller than that of the centrifugal block (16), and the outer side of the movable contact (18) is provided with a latch matched with the fixed contact (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551940.XA CN113264463B (en) | 2021-05-20 | 2021-05-20 | Industrial engineering is carried with crane protection pivot based on electromagnetic damping principle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110551940.XA CN113264463B (en) | 2021-05-20 | 2021-05-20 | Industrial engineering is carried with crane protection pivot based on electromagnetic damping principle |
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| CN113264463A true CN113264463A (en) | 2021-08-17 |
| CN113264463B CN113264463B (en) | 2022-12-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113714915A (en) * | 2021-09-06 | 2021-11-30 | 徐州方隆工程机械有限公司 | Machine part rust cleaning device |
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| CN113264463B (en) | 2022-12-30 |
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Effective date of registration: 20221215 Address after: No. 238, Sanbei Street, Gutang Street, Cixi City, Ningbo City, Zhejiang Province 315399 Applicant after: STATE GRID ZHEJIANG CIXI POWER SUPPLY CO.,LTD. Address before: 237000 Xinhua Group, wuqifan village, Dushan Town, Yu'an District, Lu'an City, Anhui Province Applicant before: Zhang Jie |
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