CN114590732A - Pressurization antiskid system for hoisting long steel rail by electric hoist - Google Patents
Pressurization antiskid system for hoisting long steel rail by electric hoist Download PDFInfo
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- CN114590732A CN114590732A CN202210208834.6A CN202210208834A CN114590732A CN 114590732 A CN114590732 A CN 114590732A CN 202210208834 A CN202210208834 A CN 202210208834A CN 114590732 A CN114590732 A CN 114590732A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
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- 238000001514 detection method Methods 0.000 claims abstract description 42
- 238000012544 monitoring process Methods 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 24
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- 238000004804 winding Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 6
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- 239000004065 semiconductor Substances 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims description 3
- 239000000428 dust Substances 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003786 synthesis reaction Methods 0.000 claims description 3
- 230000005856 abnormality Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 4
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- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000010009 beating Methods 0.000 description 1
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- 230000003068 static effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/18—Power-operated hoists
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The invention relates to the technical field of electric hoist hoisting systems, and discloses a pressurizing and anti-skidding system for hoisting a long steel rail by an electric hoist, which comprises a double-hook control system, an abnormality detection system and a horizontal monitoring system, wherein the electric hoist adopts a reducer double-output scheme, the reducer is connected with a main reel except a right-end output shaft, the other end of the reducer can also be connected with a second reel with a low-speed shaft and another hook, and the low-speed shaft is lengthened to achieve the aim of double-hoisting point hoisting, so that the high-speed shaft only bears the length requirement of the reel required by the hoisting height and does not bear the responsibility of double-hoisting point distance, the abnormality detection system comprises a motor fault detection system, a reducer fault detection system, a brake fault detection system, a reel device fault detection system and a steel wire rope fault detection system, in the invention, a single chip microcomputer compares the processed data with preset numerical values in the system, therefore, real-time monitoring is realized, and the effect of ensuring the safe operation of the electric hoist is achieved.
Description
Technical Field
The invention relates to the technical field of electric hoist hoisting systems, in particular to a pressurization antiskid system for hoisting a long steel rail by an electric hoist.
Background
The electric hoist is a special hoisting device, and is installed on overhead traveling crane, portal crane, and the electric hoist has characteristics such as small, the dead weight is light, easy operation, convenient to use for industrial and mining enterprises, storage, places such as pier, electric hoist compact structure, the electric hoist of motor axis perpendicular to reel axis adopts worm gear, its shortcoming is: the length size is big, and the size is big in the aspect of the width, and the structure is stupid, and mechanical efficiency is low, and processing is difficult etc. and electric block generally installs on monospar hoist, bridge crane, gantry crane, lift-launch crane. The said device can be used as hoist after being slightly modified. Therefore, it is a necessary machine for improving labor efficiency and improving labor conditions.
In the process of hoisting the steel rail by integral loading and unloading and transverse displacement, attention is particularly paid to keeping the steel rail in a linear state, whether the steel rail is balanced or not is particularly important when the steel rail is hoisted and lifted by using an electric hoist due to the influence of the length of the steel rail, the current electric hoist can only carry out balance detection on the steel rail in a static state when the steel rail is hoisted, and the balance monitoring on the steel rail is difficult in the process of lifting.
Therefore, a pressurizing antiskid system for hoisting the long steel rail by the electric hoist is provided.
Disclosure of Invention
The invention mainly solves the technical problems in the prior art and provides a pressurizing antiskid system for hoisting a long steel rail by an electric hoist.
In order to achieve the purpose, the invention adopts the following technical scheme that the pressurizing and anti-skidding system for hoisting the long steel rail by the electric hoist comprises a double-hook control system, an abnormality detection system and a horizontal monitoring system, the electric hoist adopts a reducer double-output scheme, the reducer is connected with a main winding drum except for a right-end output shaft, the other end of the reducer can also be connected with a second winding drum with a low-speed shaft and another lifting hook, the low-speed shaft is lengthened to achieve the aim of double-hoisting point hoisting, so that the high-speed shaft only bears the length requirement of the winding drum required by the hoisting height and does not bear the responsibility of double-hoisting point distance, the abnormality detection system comprises a motor fault detection system, a reducer fault detection system and a brake fault detection system, the fault detection system of the winding drum device and the fault detection system of the steel wire rope, the horizontal and horizontal monitoring system integrates a single chip microcomputer, a sensor and a transmission feedback module, and all the modules are matched cooperatively and jointly completed.
Preferably, in the double-hook control system, the double hooks control the hoisting steel rail together, the double-hook control system controls the distance between the double hooks, the horizontal stress and the hoisting free rotation angle, and a planetary reducer transmission scheme is adopted to realize double-hook control.
Preferably, in the double-hook control system, the planetary reducer transmission has small volume and compact structure, and is characterized in that 1 driving gear drives 3 driven gears, and the transmission force is divided into 3 teeth to share, so that a smaller modulus and a smaller structure size can be adopted, and the size of the electric block body is reduced.
Preferably, the motor fault detection system detects and gives an alarm for various power faults, the speed reducer fault detection system detects the running of the speed reducer in real time to ensure the normal running of the speed reducer, the brake fault detection system ensures the running state of the brake, and the steel wire rope fault detection system detects the appearance and the tension of the steel wire rope to ensure the quality of the steel wire rope to ensure the safe running.
Preferably, the horizontal monitoring system tracks and feeds back the lifting of the electric hoist in real time, so as to guarantee the safe operation of the electric hoist to the maximum extent, amplifies real-time information acquired by sensors (such as a weighing sensor, a torque limiter, an angle sensor and the like), converts the amplified signal into a digital signal through A/D (analog/digital) conversion, sends the digital signal into a single chip microcomputer for analysis, operation, processing and storage, and displays related information through an LCD (liquid crystal display) screen.
Preferably, in the flat and horizontal monitoring system, the single chip microcomputer compares the processed data with preset numerical values such as weight, angle, trolley amplitude, lifting moment and the like in the system, and gives an alarm when the preset numerical values are reached or exceeded, and outputs a corresponding control signal to power off the electric hoist.
Preferably, in the flat-horizontal monitoring system, an inclination angle sensor is arranged to measure an inclination angle from two directions of an X axis and a Y axis, the inclination angle sensor adopts a sensitive inclination angle sensor, a high-performance semiconductor magnetoresistor is adopted as a sensitive element (MR element for short), when an external magnetic field changes, the resistance value of the sensor can change by multiple times, in order to enable the MR element to fully sense the change of external magnetic flux, the sensor adopts an automatic pendulum to drive a permanent magnet to rotate, the change of a relative angle generated between the MR element and the permanent magnet is converted into the change of resistance value, and then the lifted inclination angle is converted into a 4-20 mA standard current signal through a signal conversion circuit to be output.
Preferably, the lifting load sensor in the horizontal monitoring system is a device for converting a quality signal into an electric signal to be output, and due to the severe working environment and the complexity of the electric hoist, the sensor which has good sealing performance and can work in the environments of dust, moisture and the like is selected.
Preferably, in the horizontal and horizontal monitoring system, data measured by the sensor is processed by the single chip microcomputer and then compared with the rated lifting torque of the electric hoist, the running state of the electric hoist is monitored and controlled through the torque limiter, when the actual lifting torque of the electric hoist reaches about 90% of the rated lifting torque, an early warning signal is sent out, when the actual lifting torque reaches or exceeds the rated lifting torque, an alarm signal is sent out, and the power supply is disconnected.
Advantageous effects
The invention provides a pressurizing antiskid system for hoisting a long steel rail by an electric hoist. The method has the following beneficial effects:
(1) the horizontal monitoring system is integrated with a single chip microcomputer, a sensor and a transmission feedback module, all the modules are cooperatively and jointly completed to track and feedback the lifting of the electric hoist in real time, the safe operation of the electric hoist is guaranteed to the maximum extent, real-time information acquired by the sensor (a weighing sensor, a torque limiter, an angle sensor and the like) is amplified, the amplified signal is converted into a digital signal through A/D (analog/digital) and is sent to the single chip microcomputer to be analyzed, operated, processed and stored, related information is displayed through an LCD (liquid crystal display) screen, the single chip microcomputer compares the processed data with preset values such as weight, lifting angle, trolley amplitude, torque and the like in the system, an alarm is given when the preset values are reached or exceeded, and a corresponding control signal is output, the electric hoist is powered off, real-time monitoring is realized in the running process of the electric hoist, and the effect of ensuring safe running of the electric hoist is achieved.
(2) The electric hoist can be influenced by the hoisting weight in the working process and slightly inclines under the condition of wind, the horizontal monitoring system is provided with the inclination angle sensor for measuring the inclination angle from the X axis and the Y axis, the inclination angle sensor adopts a sensitive inclination angle sensor, a high-performance semiconductor magnetosensitive resistor is used as a sensitive element (MR element for short), when the external magnetic field changes, the resistance value of the sensor can generate multiple times of change, in order to enable the MR element to fully sense the change of the external magnetic flux, the sensor adopts automatic pendulum to drive the permanent magnet to rotate, the change of the relative angle generated between the MR element and the permanent magnet is converted into the change of the resistance value, and the inclination angle of the tower crane is converted into a 4-20 mA standard current signal through the signal conversion circuit to be output, the angle of inclination in the angle hoisting process is real-time, and accidents such as the inclined collapse of the steel rail are avoided.
(3) This an electric block hoists long rail and uses pressurization anti-skidding system, data that the sensor recorded carry out the comparison with the rated lifting moment of electric block after single chip microcomputer processing, monitoring and control the running state of electric block through the moment limiter, send early warning signal when the actual lifting moment of electric block reaches about 90% of rated lifting moment, send alarm signal when reaching or surpassing rated lifting moment, and the power supply is cut off, control and monitor electric block hoists long rail through double hook control system and flat horizontal monitoring system, make electric block hoist and mount long rail under safe environment and state, avoid long rail hoist and mount to appear sliding, the condition of mistake horizontal takes place.
(4) This electric block hoists long rail and uses pressurization anti-skidding system, motor fault detecting system detect and the alarm to various power failure, and speed reducer fault detecting system carries out real-time detection to the speed reducer operation, guarantees speed reducer normal operating, and stopper fault detecting system guarantees stopper running state, and wire rope fault detecting system carries out appearance, tensile detection to wire rope, guarantees wire rope's quality in order to ensure safe operation.
(5) This electric block hoists long rail and uses pressurization anti-skidding system, in the double hook control system, the planetary reducer transmission has smallly, compact structure, planetary reducer transmission characteristics are that 1 driving gear drives 3 driven gears, the transmission force differentiates into 3 teeth and undertakes jointly, can adopt less modulus and structure size like this, thereby reduced electric block organism size, planetary reducer transmission scheme transmission is bigger, easily realize the synthesis and the decomposition of motion, the dual output of output shaft has been realized, double hook control system receives the command signal from electric block, electric block's motion part follows the motion of instruction pulse, and guarantee quick accurate action.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
FIG. 1 is a system architecture and flow diagram of the present invention.
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.
Example (b): a pressurizing antiskid system for hoisting long steel rails by an electric hoist comprises a double-hook control system, an abnormality detection system and a horizontal monitoring system, wherein the electric hoist adopts a double-output scheme of a reducer, the reducer is connected with a main winding drum through a right-end output shaft, the other end of the reducer can also be connected with a second winding drum with a low-speed shaft and provided with another lifting hook, the low-speed shaft is lengthened to achieve the aim of double-lifting-point hoisting, the electric hoist is suitable for hoisting long steel rails with longer length, the high-speed shaft only bears the length requirement of the winding drum required by the hoisting height and does not bear the responsibility of double-lifting-point distance, the revolution number of the low-speed shaft is 10-20 r/min, the steel rails are hoisted through the double hooks, the double-hook control system controls the distance between the double hooks, the horizontal stress and the free rotation angle of hoisting, the double-hook control is realized by adopting a planetary reducer transmission scheme, the planetary reducer has small volume and compact structure, the transmission of the planetary reducer is characterized in that 1 driving gear drives 3 driven gears, the transmission force is divided into 3 teeth to bear together, thus the size of the electric hoist body can be reduced by adopting smaller modulus and structure size, the transmission scheme of the planetary reducer is larger, the synthesis and decomposition of the motion are easy to realize, the double output of an output shaft is realized, the transmission scheme of the planetary reducer is stable in motion, strong in impact resistance and vibration resistance, the transmission of the planetary reducer requires hard surface meshing, the CD type electric hoist requires low-alloy carburizing steel, the CD type electric hoist and the CD type electric hoist are matched, a double-hook control system receives a command signal from the electric hoist, a motion part of the electric hoist moves along with a command pulse, and the quick and accurate motion is ensured, a turning device with a walking mechanism and the body rotating freely is arranged on the electric hoist, and the turning device with the body rotating freely is also controlled by the double-hook control system, the running mechanism of the electric hoist comprises a driving wheel of a trolley (cart), a driven wheel of the trolley (cart), running motors (cart and trolley), an electric device and a connecting device, the running mechanism of the electric hoist proves that the electric hoist can run left and right, the working efficiency is improved, an abnormality detection system comprises a motor fault detection system, a speed reducer fault detection system, a brake fault detection system, a winding drum device fault detection system and a steel wire rope fault detection system, the motor fault detection system detects and alarms various faults such as power failure, low power voltage, failure of a fuse, a contactor and the like in an electromagnetic switch box, single-phase running of a motor, breakage of a wiring or an electromagnetic coil and the like, poor motor dynamic balance, deflection of a brake wheel, incomplete opening of the brake and the like, and ensures that the motor runs under a normal power environment and state, the brake fault detection system detects the running of the reducer in real time to ensure the normal running of the reducer, the brake fault comprises the fracture of a motor shaft, improper assembly of a conical brake ring, brake failure caused by a worn step, too large brake clearance, downward sliding of a steel rail or obvious braking during running caused by serious abrasion of the brake ring or a brake wheel, noise generation during braking and the like, the running state of the brake is ensured by the brake fault detection system, the safety of the electric hoist in the using process is improved, an automatic safety brake is arranged on a winding drum of the electric hoist, and if the motor brake fails or a transmission shaft is broken and the load freely drops, the abnormal detection system detects the over-revolution of the winding drum, the safety brake acts at the moment to brake the winding drum with the over-normal revolution, accidents are prevented, the failure of the steel wire rope comprises breakage, deformation and overhead pattern beating of the steel wire rope, the electric hoist is used, the steel wire rope failure detection system detects the shape and the tension of the steel wire rope, the quality of the steel wire rope is guaranteed to ensure safe operation, the horizontal monitoring system integrates a single chip microcomputer, a sensor and a transmission feedback module, all the blocks are cooperatively and jointly completed, the lifting of the electric hoist is tracked and fed back in real time, the safe operation of the electric hoist is guaranteed to the maximum extent, real-time information collected by the sensor (a weighing sensor, a moment limiter, an angle sensor and the like) is amplified firstly, the amplified signal is converted into a digital signal through A/D (analog to digital) and sent to the single chip microcomputer for analysis, Calculating, processing and storing, then displaying relevant information through an LCD display screen, comparing the processed data with preset values such as weight, angle, trolley amplitude, lifting moment and the like in the system by a singlechip, giving an alarm when the preset values are reached or exceeded, and outputting a corresponding control signal to power off an electric hoist so as to achieve the aim of ensuring the safe operation of the electric hoist, wherein the electric hoist can be influenced by the lifting weight in the working process and slightly inclines under the windy condition, an inclination angle sensor is arranged in a horizontal monitoring system to measure the inclination angle from the X axis and the Y axis, the inclination angle sensor adopts a Z-sensitive inclination angle sensor, a high-performance semiconductor magneto-sensitive resistor is adopted as a sensitive element, namely an MR element for short, and the resistance value of the inclination angle sensor can change by times when the external magnetic field changes, in order to enable the MR element to fully sense the change of external magnetic flux, the sensor adopts an automatic pendulum to drive the permanent magnet to rotate, the change of a relative angle generated between the MR element and the permanent magnet is converted into the change of resistance, then an inclination angle of the tower crane is converted into a 4-20 mA standard current signal through a signal conversion circuit to be output, and a lifting sensor is a device for converting a mass signal into an electric signal to be output, because of the importance of the lifting sensor in a horizontal monitoring system, the sensor which has good sealing performance and can work in the environments of dust, moisture and the like is selected due to the severe working environment and the complexity of the electric hoist, and the data measured by the sensor is compared with the rated lifting torque of the electric hoist after being processed by a single chip microcomputer, the running state of the electric hoist is monitored and controlled through the torque limiter, when the actual hoisting torque of the electric hoist reaches about 90% of the rated hoisting torque, an early warning signal is sent out, when the actual hoisting torque reaches or exceeds the rated hoisting torque, an alarm signal is sent out, a power supply is disconnected, the long steel rail is hoisted through the double-hook control system and the horizontal monitoring system, the electric hoist is hoisted in a safe environment and in a safe state, and the situations that the long steel rail is hoisted in a sliding mode and is not horizontal are avoided.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides an electric block hoists long rail and uses pressurization anti-skidding system which characterized in that: the electric hoist adopts a double-output scheme of a speed reducer, the speed reducer is connected with a main winding drum through a right-end output shaft, the other end of the speed reducer can also be connected with a second winding drum with a low-speed shaft and another hook through an output shaft, the purpose of double-hoisting point hoisting is achieved by lengthening the low-speed shaft, the high-speed shaft only bears the length requirement of the winding drum required by the hoisting height and does not bear the responsibility of double-hoisting point distance, the abnormity detection system comprises a motor fault detection system, a speed reducer fault detection system, a brake fault detection system, a winding drum device fault detection system and a steel wire rope fault detection system, the flat-horizontal monitoring system integrates a single chip microcomputer, a sensor and a transmission feedback module, and all the blocks are cooperatively and jointly completed.
2. The pressurization antiskid system for hoisting the long steel rail by the electric hoist according to claim 1, characterized in that: in the double-hook control system, double hooks control the lifting steel rail together, the double-hook control system controls the distance between the double hooks, the horizontal stress and the free rotation angle of the lifting, and a planetary reducer transmission scheme is adopted to realize double-hook control.
3. The pressurization antiskid system for hoisting the long steel rail by the electric hoist according to claim 1, characterized in that: in the double-hook control system, the transmission of the planetary reducer has small volume and compact structure, the transmission of the planetary reducer is characterized in that 1 driving gear drives 3 driven gears, and the transmission force is divided into 3 teeth to share, so that smaller modulus and structure size can be adopted, the size of the electric hoist body is reduced, the transmission scheme of the planetary reducer is larger, the synthesis and decomposition of motion are easy to realize, the double output of an output shaft is realized, the double-hook control system receives a command signal from the electric hoist, a motion part of the electric hoist moves along with the command pulse, and the rapid and accurate motion is ensured, a turning device with a walking mechanism and a body rotating freely is arranged on the electric hoist, and the walking mechanism and the turning device with the body rotating freely are also controlled by the double-hook control system.
4. The pressurization antiskid system for hoisting the long steel rail by the electric hoist according to claim 1, characterized in that: the motor fault detection system detects and gives an alarm for various power faults, the speed reducer fault detection system detects the running of the speed reducer in real time to ensure the normal running of the speed reducer, the brake fault detection system ensures the running state of the brake, and the steel wire rope fault detection system detects the appearance and the tension of the steel wire rope to ensure the quality of the steel wire rope to ensure the safe running.
5. The pressurization antiskid system for hoisting the long steel rail by the electric hoist according to claim 1, characterized in that: the horizontal monitoring system tracks and feeds back lifting of the electric hoist in real time, safety work of the electric hoist is guaranteed to the maximum extent, real-time information collected by sensors (a lifting sensor, a torque limiter, an angle sensor and the like) is amplified firstly, the amplified signals are converted into digital signals through A/D (analog/digital) conversion, the digital signals are sent into a single chip microcomputer to be analyzed, operated, processed and stored, and then relevant information is displayed through an LCD (liquid crystal display) screen.
6. The pressurization antiskid system for hoisting the long steel rail by the electric hoist according to claim 1, characterized in that: in the horizontal and horizontal monitoring system, the single chip microcomputer compares the processed data with preset numerical values such as weight, angle, trolley amplitude, lifting moment and the like in the system, and sends out an alarm when the preset numerical values are reached or exceeded, and outputs a corresponding control signal to power off the electric hoist.
7. The pressurization antiskid system for hoisting the long steel rail by the electric hoist according to claim 1, characterized in that: in the flat-horizontal monitoring system, an inclination angle sensor is arranged to measure an inclination angle from an X axis direction and a Y axis direction, the inclination angle sensor adopts a sensitive inclination angle sensor, a high-performance semiconductor magnetic sensitive resistor is used as a sensitive element (MR element for short), when an external magnetic field changes, the resistance value of the inclination angle sensor can change by multiple times, in order to enable the MR element to fully sense the change of external magnetic flux, the sensor adopts an automatic pendulum to drive a permanent magnet to rotate, the change of a relative angle generated between the MR element and the permanent magnet is converted into the change of the resistance value, and then the lifted inclination angle is converted into a 4-20 mA standard current signal through a signal conversion circuit to be output.
8. The pressurization antiskid system for hoisting the long steel rail by the electric hoist according to claim 1, characterized in that: the hoisting sensor in the horizontal monitoring system is a device for converting a quality signal into an electric signal to be output, and due to the severe and complex working environment of the electric hoist, the sensor which has good sealing performance and can work in the environments of dust, humidity and the like is selected.
9. The pressurization antiskid system for hoisting the long steel rail by the electric hoist according to claim 8, characterized in that: in the horizontal monitoring system, data measured by the sensor are processed by the single chip microcomputer and then compared with rated lifting torque of the electric hoist, the running state of the electric hoist is monitored and controlled through the torque limiter, when the actual lifting torque of the electric hoist reaches about 90% of the rated lifting torque, an early warning signal is sent out, when the actual lifting torque reaches or exceeds the rated lifting torque, an alarm signal is sent out, and the power supply is disconnected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210208834.6A CN114590732A (en) | 2022-03-04 | 2022-03-04 | Pressurization antiskid system for hoisting long steel rail by electric hoist |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210208834.6A CN114590732A (en) | 2022-03-04 | 2022-03-04 | Pressurization antiskid system for hoisting long steel rail by electric hoist |
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| DE202017105342U1 (en) * | 2017-09-05 | 2017-09-21 | Feng Shenglin | In series connected electric hoist for single carrier |
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2022
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