CN111943051A - Movable intelligent suspension crane - Google Patents
Movable intelligent suspension crane Download PDFInfo
- Publication number
- CN111943051A CN111943051A CN202010791148.7A CN202010791148A CN111943051A CN 111943051 A CN111943051 A CN 111943051A CN 202010791148 A CN202010791148 A CN 202010791148A CN 111943051 A CN111943051 A CN 111943051A
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- China
- Prior art keywords
- rack
- guide rail
- wire rope
- steel wire
- cantilever crane
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/22—Rigid members, e.g. L-shaped members, with parts engaging the under surface of the loads; Crane hooks
- B66C1/34—Crane hooks
- B66C1/40—Crane hooks formed or fitted with load measuring or indicating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/08—Runners; Runner bearings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/14—Trolley or crane travel drives
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/18—Travelling gear incorporated in or fitted to trolleys or cranes with means for locking trolleys or cranes to runways or tracks to prevent inadvertent movements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
The invention discloses a movable intelligent suspension crane which comprises two trolley tracks, wherein the two trolley tracks are arranged in parallel, a rack is arranged on each trolley track in a sliding mode, a first guide rail is arranged above the rack, the two first guide rails are symmetrically arranged on two sides of the rack, the first guide rails and the rack are fixedly connected through guide rail connecting pieces, guide rail pulleys are arranged in the first guide rails, the lower ends of the guide rail pulleys are fixedly connected with a second guide rail, a cantilever crane is connected below the second guide rail in a sliding mode, a motor is arranged at the bottom of the rack and connected with a driving wheel, the driving wheel is arranged on each trolley track and can roll along the length direction of the trolley tracks, and a driven wheel is further arranged at the bottom of the rack. According to the intelligent suspension crane, the driving wheels are arranged between the trolley track and the rack, the traditional upper end driving mode is replaced by the lower end driving mode, ascending operation is not needed when a fault occurs, and the intelligent suspension crane is convenient to overhaul.
Description
Technical Field
The invention relates to the technical field of suspension cranes, in particular to a mobile intelligent suspension crane.
Background
The suspension crane can complete three-dimensional space transfer actions such as heavy object grabbing, carrying, overturning, butt joint and fine adjustment of angles, and provides an ideal power-assisted carrying and assembling tool for the assembly of production parts and the assembly of the up-down production lines of large parts. The suspension crane rail mounting of prior art at the factory building top, consequently need hang along the rail mobile through the suspension of upper end driven mode control suspension, when the drive arrangement of suspension crane and upper end broke down, the staff need climb the height with the help of instruments such as ladders and overhauls, is unfavorable for suspension crane's daily maintenance work.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a mobile intelligent suspension crane, which solves the problem that the suspension crane in the prior art adopts an upper end driving mode, and the suspension crane and an upper end driving device need to be ascended when in failure, so that the maintenance is inconvenient.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: a movable intelligent suspension crane comprises two trolley tracks, a rack, a guide rail connecting piece, a first guide rail, a guide rail pulley, a second guide rail, a cantilever crane, a first hook, a second hook and a motor, wherein the two trolley tracks are arranged in parallel, the rack is slidably mounted on the trolley tracks, the first guide rail is arranged above the rack, the two first guide rails are symmetrically arranged at two sides of the rack, the first guide rail and the rack are fixedly connected through the guide rail connecting piece, the guide rail pulley is arranged in the first guide rail, the lower end of the guide rail pulley is fixedly connected with the second guide rail, the cantilever crane is slidably connected below the second guide rail, the motor is mounted at the bottom of the rack, the motor is connected with a driving wheel, the driving wheel is arranged on the trolley tracks and rolls along the length direction of the trolley tracks, the driven wheel is further arranged at the bottom of the rack, the driven wheel can roll along the direction of the trolley track.
Preferably, the frame is a hollow welding support, and the frame is formed by welding a plurality of steel bars.
Preferably, the guide rail connecting pieces are provided with six groups in total, the front and the back are provided with three groups respectively, and the three groups of guide rail connecting pieces are arranged at the left, the middle and the right of the first guide rail respectively.
Preferably, the trolley track and the first guide rail are arranged in parallel.
Preferably, the first guide rail and the second guide rail are arranged perpendicular to each other.
Preferably, a first hook and a second hook are connected below the cantilever crane.
Preferably, the guide rail pulley can roll along the length direction of the first guide rail.
Preferably, the frame bottom still is provided with a plurality of clamping device, clamping device includes:
the upper end of the sleeve is fixedly connected with the bottom of the rack, a cavity is arranged in the sleeve, first grooves are formed in the left side wall and the right side wall of the sleeve, and the first grooves are communicated with the cavity;
the lifting column is arranged in the sleeve, and the upper end of the lifting column is fixedly connected with the bottom of the rack;
the two clamping plates are symmetrically arranged on the left side and the right side of the lifting column, one end of each clamping plate is hinged to the bottom end of the lifting column, the other end of each clamping plate is provided with an anti-skid pad, the upper part of each clamping plate is hinged to a first connecting rod, the other end of each first connecting rod is hinged to the side wall of the lower end of the sleeve, and each clamping plate is semi-circular;
the two second connecting rods are symmetrically arranged on the left side and the right side of the lifting column, one end of each second connecting rod is fixedly connected with the side wall of the telescopic end of the lifting column, the other end of each second connecting rod penetrates through the corresponding first groove to extend to the outside of the sleeve and is provided with a first rack, and the first racks are perpendicular to the second connecting rods;
the fixed plate, two the fixed plate symmetry sets up the sleeve left and right sides, the fixed plate orientation sleeve one side sets up the second recess, install the gear through the pivot in the second recess, the gear with first rack toothing, still set up the second rack in the second recess, the second rack sets up the gear is kept away from first rack one side, the second rack with gear toothing, second rack lower extreme and bracing piece one end fixed connection, the bracing piece other end extends to the fixed plate lower extreme is outside.
Preferably, the method further comprises the following steps:
the force sensor is arranged on the first hook and used for measuring the tension of the steel wire rope of the cantilever crane;
the speed measuring sensor is arranged on the first hook and used for measuring the moving speed of the steel wire rope of the cantilever crane;
the timer is arranged at the upper end of the cantilever crane and used for monitoring the actual working time of the cantilever crane;
the alarm is arranged at the upper end of the cantilever crane;
the controller is arranged at the upper end of the cantilever crane and is respectively and electrically connected with the force measuring sensor, the speed measuring sensor, the timer and the alarm;
the controller controls the alarm to work based on the force measuring sensor, the speed measuring sensor and the timer, and comprises the following steps:
step 1: the controller is based on the tensile force of the steel wire rope and the speed sensor during the operation of the cantilever crane monitored by the force sensor, and the actual safety factor of the steel wire rope is calculated through a formula (1):
wherein f is1As actual safety factor of the wire rope, F2Presetting a total tension, v, for the wire rope2For a predetermined travelling speed, T, of the wire rope2For preset duration of operation, T, of the jib crane1The actual working time of the cantilever crane, c is the number of winding strands of the steel wire rope, n is the total working times of the cantilever crane, and FiThe tensile force of the steel wire rope in the ith work of the cantilever crane is shown, m is the mass of the steel wire rope per meter, l is the length value of the steel wire rope, mu is the running resistance coefficient of the steel wire rope, g is the gravity acceleration, g is 9.8m/s2, v is the weight of the steel wire ropeiThe moving speed of the steel wire rope during the ith work of the cantilever crane is obtained;
step 2: the controller controls the alarm to give an alarm according to the calculation result of the formula (2), when S is larger than 1, the cantilever crane can work normally, and the alarm does not give an alarm; when S is less than or equal to 1, the controller sends an instruction to control the alarm to give an alarm, and prompts a worker to replace the steel wire rope:
wherein S is the ratio of the actual safety coefficient of the steel wire rope to the preset safety coefficient, f2And a safety factor is preset for the steel wire rope.
(III) advantageous effects
The invention provides a mobile intelligent suspension crane, which has the following beneficial effects:
1. the driving wheels are arranged between the trolley track and the rack, the traditional upper end driving mode is replaced by the lower end driving mode, ascending operation is not needed when a fault occurs, the intelligent suspension crane is convenient to overhaul, and meanwhile, compared with ascending overhaul, the ground overhaul mode is adopted to improve the overhaul safety and prevent workers from falling from high altitude;
2. by arranging the clamping device, the anti-slip pads on the side walls of the clamping plates are tightly attached to the side walls of the trolley rails, so that the situation that when the suspension crane is not used, a worker mistakenly touches the rack to cause the rack to slide on the trolley rails is prevented, two supporting rods extending out of the two fixing plates are respectively arranged on the left side and the right side of the rack, the support for the bottom of the rack can be increased, the stopped rack is more stable on the trolley rails, and the shaking is reduced;
3. through setting up force cell sensor, tacho sensor, timer, alarm and controller, can indicate the field work personnel in time to change wire rope, avoid drawing when getting the material wire rope fracture and make the material drop and take place to pound the accident of dying the people, improved the security of equipment.
Drawings
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a partial enlarged structural view of the first embodiment of the present invention;
FIG. 4 is a second partial enlarged structural view of the present invention;
fig. 5 is a schematic view of the clamping device of the present invention.
In the figure: the lifting device comprises a trolley track 1, a rack 2, a guide rail connecting piece 3, a first guide rail 4, a guide rail pulley 5, a second guide rail 6, a cantilever crane 7, a first hook 8, a second hook 9, a motor 10, a driving wheel 11, a driven wheel 12, a sleeve 13, a cavity 14, a first groove 15, a lifting column 16, a clamping plate 17, a first connecting rod 18, a second connecting rod 19, a first rack 20, a fixing plate 21, a second groove 22, a rotating shaft 23, a gear 24, a second rack 25 and a supporting rod 26.
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.
As shown in fig. 1 to 4, the present invention provides a technical solution: a movable intelligent suspension crane comprises trolley tracks 1, a rack 2, a guide rail connecting piece 3, two first guide rails 4, guide rail pulleys 5, a second guide rail 6, a cantilever crane 7, a first hook 8, a second hook 9 and a motor 10, wherein the trolley tracks 1 are arranged in parallel, the rack 2 is arranged on the trolley tracks 1 in a sliding mode, the first guide rails 4 are arranged above the rack 2, the two first guide rails 4 are symmetrically arranged on the front side and the rear side of the rack 2, the first guide rails 4 and the rack 2 are fixedly connected through the guide rail connecting piece 3, the guide rail pulleys 5 are arranged in the first guide rails 4, the lower ends of the guide rail pulleys 5 are fixedly connected with the second guide rail 6, the cantilever crane 7 is connected below the second guide rail 6 in a sliding mode, the motor 10 is arranged at the bottom of the rack 2, the motor 10 is connected with a driving wheel 11, the driving wheel 11 is arranged on the trolley tracks 1 and can roll along the length direction of the trolley tracks 1, the bottom of the frame 2 is also provided with a driven wheel 12, and the driven wheel 12 can roll along the length direction of the trolley track 1.
Further, the frame 2 is a hollow welding support, and the frame 2 is formed by welding a plurality of steel bars.
Further, the guide rail connecting pieces 3 are provided with six groups in total, and three groups are provided on one side, and the guide rail connecting pieces 3 are respectively arranged at the left, middle and right positions of the first guide rail 4.
Further, the trolley track 1 and the first guide rail 4 are arranged in parallel.
Further, the first guide rail 4 and the second guide rail 6 are arranged perpendicular to each other.
Further, a first hook 8 and a second hook 9 are connected below the cantilever crane 7.
Further, the guide rail pulley 5 can roll along the length direction of the first guide rail 4.
The working principle and the beneficial effects of the technical scheme are as follows: when the mobile intelligent suspension crane is used, an electric control element of the device is firstly connected with 220V industrial electricity, the cantilever crane 7 is controlled by a control button to move to the position above a material to be suspended, then the first hook 8 and the second hook 9 below the cantilever crane 7 are used for hooking the material, so that the material can be lifted, then the motor 10 below the rack 2 drives the driving wheel 11 to rotate, the driving wheel 11 rolls on the trolley track 1 along the length direction of the trolley track 1 and drives the driven wheel 12 to roll on the trolley track 1, so that the rack 2 is driven to integrally slide on the trolley track 1, long-distance air transportation of the material is realized, meanwhile, two first guide rails 4 are arranged above the rack 2 through the guide rail connecting piece 3, guide rail pulleys 5 are arranged in the first guide rails 4, the guide rail pulleys 5 can roll in the first guide rails 4, and a second guide rail 6 is arranged between the two guide rail pulleys 5, the two ends of the second guide rail 6 are respectively connected with the lower ends of the two guide rail pulleys 5, therefore, the second guide rail 6 can slide along the length direction of the first guide rail 4 in a short distance below the first guide rail 4, the cantilever crane 7 is arranged on the second guide rail 6 and slides along the second guide rail 6, the cantilever crane 7 is connected with the second guide rail 6 in a sliding way, therefore, the cantilever crane 7 can also slide along the length direction of the second guide rail 6 in a short distance, the multi-directional adjustment of the cantilever crane 7 is realized, the application is wider, the cantilever crane 7 adopts a flexible beam crane, the lifting height is 1.65-1.7 meters, the load is not more than 600kg, the rated power is not more than 2kw, the running speed is not less than 15m/min, meanwhile, the invention also comprises a control system, at least 10 preset weight values are arranged in the control system, and the equipment can automatically enter a suspension mode within the range of 2kg above and below each, need not the manual button switching that carries on of operating personnel, make the suspension hang possess automatic suspension function, it is more intelligent. According to the intelligent suspension crane, the driving wheel 11 is arranged between the trolley track 1 and the rack 2, the traditional upper end driving mode is replaced by the lower end driving mode, the ascending maintenance is not needed when a fault occurs in the material carrying and moving process, the motor 10 and the driving wheel 11 can be directly maintained on the ground, the maintenance of the intelligent suspension crane is facilitated, and meanwhile, compared with the ascending maintenance, the maintenance safety is improved by the motor 10 and the driving wheel 11 which are arranged at the lower end of the rack 2, and workers are prevented from falling from the high altitude.
In one embodiment, as shown in fig. 5, the bottom of the frame 2 is further provided with a plurality of clamping devices, and the clamping devices comprise:
the upper end of the sleeve 13 is fixedly connected with the bottom of the frame 2, a cavity 14 is arranged in the sleeve 13, first grooves 15 are formed in the left side wall and the right side wall of the sleeve 13, and the first grooves 15 are communicated with the cavity 14;
the lifting column 16 is arranged in the sleeve 13, and the upper end of the lifting column 16 is fixedly connected with the bottom of the rack 2;
the two clamping plates 17 are symmetrically arranged on the left side and the right side of the lifting column 16, one end of each clamping plate 17 is hinged to the bottom end of the lifting column 16, the other end of each clamping plate 17 is provided with an anti-skid pad, the upper part of each clamping plate 17 is hinged to a first connecting rod 18, the other end of each first connecting rod 18 is hinged to the side wall of the lower end of the sleeve 13, and each clamping plate 17 is semi-circular;
the two second connecting rods 19 are symmetrically arranged on the left side and the right side of the lifting column 16, one end of each second connecting rod 19 is fixedly connected with the side wall of the telescopic end of the lifting column 16, the other end of each second connecting rod 19 penetrates through the corresponding first groove 15 to extend to the outside of the corresponding sleeve 13 and is provided with a first rack 20, and the first racks 20 are perpendicular to the second connecting rods 19;
fixed plate 21, two the fixed plate 21 symmetry sets up the sleeve 13 left and right sides, fixed plate 21 orientation sleeve 13 one side sets up second recess 22, install gear 24 through pivot 23 in the second recess 22, gear 24 with first rack 20 meshes, still set up second rack 25 in the second recess 22, second rack 25 sets up gear 24 keeps away from first rack 20 one side, second rack 25 with gear 24 meshes, second rack 25 lower extreme and bracing piece 26 one end fixed connection, the bracing piece 26 other end extends to fixed plate 21 lower extreme is outside.
The working principle and the beneficial effects of the technical scheme are as follows: the bottom of the frame 2 is provided with a plurality of clamping devices which are distributed at equal intervals between a driving wheel 11 and a driven wheel 12 on the same side of the frame 2, when the suspension crane is not used, the frame 2 stops moving, the telescopic end of a lifting column 16 of the clamping devices retracts upwards and pulls the upper end of a clamping plate 17 to move upwards, the clamping plate 17 clamps the side wall of the trolley track 1 under the action of a first connecting rod 18, at the moment, an anti-skid pad on the side wall of the clamping plate 17 is tightly attached to the side wall of the trolley track 1, so that when the suspension crane is not used, a worker mistakenly collides the frame 2 to cause the frame 2 to slide on the trolley track 1, meanwhile, second connecting rods 19 arranged on the left side and the right side of the telescopic end of the lifting column 16 move upwards along with the lifting column 16 and drive a first rack 20 to move upwards, the first rack 20 drives a rack 24 to rotate around a rack shaft 23, the gear 24 drives a second rack 25 to move downwards, and the second rack 25 is connected with the, second rack 25 is gliding downwards in second recess 22, then drive bracing piece 26 downstream, until with the ground contact, two bracing pieces 26 that stretch out in two fixed plates 21 are established respectively in the 2 left and right sides of frame, can increase the support to frame 2 bottom, make the frame 2 that stops more firm on dolly track 1, the reduction rocks, when the suspension hangs the needs use, the flexible end of lift post 16 stretches out downwards, splint 17 breaks away from dolly track 1 surface, the support column upwards is packed up and is broken away from ground, frame 2 can freely slide on dolly track 1 this moment.
In one embodiment, further comprising:
the force sensor is arranged on the first hook 8 and used for measuring the tension of the steel wire rope of the cantilever crane 7;
the speed measuring sensor is arranged on the first hook 8 and used for measuring the moving speed of the steel wire rope of the cantilever crane 7;
the timer is arranged at the upper end of the cantilever crane 7 and used for monitoring the actual working time of the cantilever crane 7;
the alarm is arranged at the upper end of the cantilever crane 7;
the controller is arranged at the upper end of the cantilever crane 7 and is electrically connected with the force measuring sensor, the speed measuring sensor, the timer and the alarm respectively;
the controller controls the alarm to work based on the force measuring sensor, the speed measuring sensor and the timer, and comprises the following steps:
step 1: the controller calculates the actual safety factor of the steel wire rope through a formula (1) based on the tension of the steel wire rope and a speed measuring sensor during the operation of the cantilever crane 7 monitored by a force measuring sensor:
wherein f is1As actual safety factor of the wire rope, F2Presetting a total tension, v, for the wire rope2For a predetermined travelling speed, T, of the wire rope2Preset working time, T, for the operation of the jib crane 71The actual working time of the cantilever crane 7, c is the number of winding strands of the steel wire rope, n is the total working times of the cantilever crane 7, and FiThe tensile force of the steel wire rope in the ith work of the cantilever crane 7 is shown, m is the mass of the steel wire rope per meter, l is the length value of the steel wire rope, mu is the running resistance coefficient of the steel wire rope, g is the gravity acceleration, g is 9.8m/s2, v is the weight of the steel wire rope, g is the weight of the steel wire rope, v is the weight of the steel wire rope, g is theiThe moving speed of the steel wire rope during the ith work of the cantilever crane 7 is obtained;
step 2: the controller controls the alarm to give an alarm according to the calculation result of the formula (2), when S is larger than 1, the cantilever crane 7 can work normally, and the alarm does not give an alarm; when S is less than or equal to 1, the controller sends an instruction to control the alarm to give an alarm, and prompts a worker to replace the steel wire rope:
wherein S is the ratio of the actual safety coefficient of the steel wire rope to the preset safety coefficient, f2And a safety factor is preset for the steel wire rope.
The working principle and the beneficial effects of the technical scheme are as follows: the safety factor of the steel wire rope is related to the actual working time of the operation of the cantilever crane 7, the moving speed of the steel wire rope and the tension of the steel wire rope, the first hook 8 and the second hook 9 are arranged below the cantilever crane 7 through the steel wire rope, the first hook 8 is provided with a force sensor which can measure and record the tension of the cantilever crane 7 when pulling materials each time, the timer can monitor the actual working time of the operation of the cantilever crane 7, the speed sensor is arranged on the first hook 8 and can move along with the steel wire rope, so that the moving speed of the steel wire rope during the operation is measured, then the actual safety factor of the steel wire rope is calculated through a formula (1) according to the tension, the actual working time and the moving speed of the steel wire rope recorded by the force sensor, whether the steel wire rope needs to be replaced is judged through the formula (2), and when the ratio of the actual safety, the steel wire rope is in a safe state, the steel wire rope is less worn and cannot break, the cantilever crane can continue to work normally, along with long-time work of the cantilever crane 7, when the ratio of the actual safety coefficient of the steel wire rope to the preset safety coefficient is less than or equal to 1, the steel wire rope is seriously worn at the moment, the steel wire rope is in an easy-to-break state, the controller sends a control instruction to enable the alarm to give an alarm to prompt field workers to replace the steel wire rope in time, the accident that the material falls off to cause the death of people due to the breakage of the steel wire rope when the material is pulled is avoided, and the safety of the equipment.
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 (9)
1. A movable intelligent suspension crane comprises two trolley tracks (1), a rack (2), a guide rail connecting piece (3), first guide rails (4), guide rail pulleys (5), a second guide rail (6), a cantilever crane (7), a first hook (8), a second hook (9) and a motor (10), and is characterized in that the two trolley tracks (1) are arranged in parallel, the rack (2) is slidably mounted on the trolley tracks (1), the first guide rails (4) are arranged above the rack (2), the two first guide rails (4) are symmetrically arranged at two sides of the rack (2), the first guide rails (4) and the rack (2) are fixedly connected through the guide rail connecting piece (3), the guide rail pulleys (5) are arranged in the first guide rails (4), and the lower ends of the guide rail pulleys (5) are fixedly connected with the second guide rails (6), the trolley is characterized in that a cantilever crane (7) is connected to the lower portion of the second guide rail (6) in a sliding mode, a motor (10) is installed at the bottom of the rack (2), the motor (10) is connected with a driving wheel (11), the driving wheel (11) is arranged on the trolley track (1) and can roll along the length direction of the trolley track (1), and a driven wheel (12) is further arranged at the bottom of the rack (2).
2. A mobile intelligent suspension crane according to claim 1, characterized in that: the frame (2) is a hollow welding support, and the frame (2) is formed by welding a plurality of steel bars.
3. A mobile intelligent suspension crane according to claim 1, characterized in that: the guide rail connecting pieces (3) are provided with six groups in total, three groups are arranged in the front and at the back respectively, and the guide rail connecting pieces (3) are arranged at the left, middle and right positions of the first guide rail (4) respectively.
4. A mobile intelligent suspension crane according to claim 1, characterized in that: the trolley track (1) and the first guide rail (4) are arranged in parallel.
5. A mobile intelligent suspension crane according to claim 1, characterized in that: the first guide rail (4) and the second guide rail (6) are arranged perpendicularly to each other.
6. A mobile intelligent suspension crane according to claim 1, characterized in that: a first hook (8) and a second hook (9) are arranged below the cantilever crane (7).
7. A mobile intelligent suspension crane according to claim 1, characterized in that: the guide rail pulley (5) can roll along the length direction of the first guide rail (4).
8. A mobile intelligent suspension crane according to claim 1, characterized in that: frame (2) bottom still is provided with a plurality of clamping device, clamping device includes:
the upper end of the sleeve (13) is fixedly connected with the bottom of the rack (2), a cavity (14) is formed in the sleeve (13), first grooves (15) are formed in the left side wall and the right side wall of the sleeve (13), and the first grooves (15) are communicated with the cavity (14);
the lifting column (16) is arranged in the sleeve (13), and the upper end of the lifting column (16) is fixedly connected with the bottom of the rack (2);
the two clamping plates (17) are symmetrically arranged on the left side and the right side of the lifting column (16), one end of each clamping plate (17) is hinged to the bottom end of the lifting column (16), an anti-skid pad is arranged at the other end of each clamping plate (17), the upper part of each clamping plate (17) is hinged to a first connecting rod (18), the other end of each first connecting rod (18) is hinged to the side wall of the lower end of the sleeve (13), and each clamping plate (17) is semi-circular;
the two second connecting rods (19) are symmetrically arranged on the left side and the right side of the lifting column (16), one end of each second connecting rod (19) is fixedly connected with the side wall of the telescopic end of the lifting column (16), the other end of each second connecting rod (19) penetrates through the corresponding first groove (15) to extend to the outside of the sleeve (13) and is provided with a first rack (20), and the first racks (20) are perpendicular to the second connecting rods (19);
fixed plate (21), two fixed plate (21) symmetry sets up sleeve (13) left and right sides, fixed plate (21) orientation sleeve (13) one side sets up second recess (22), install gear (24) through pivot (23) in second recess (22), gear (24) with first rack (20) meshing, still set up second rack (25) in second recess (22), second rack (25) set up gear (24) are kept away from first rack (20) one side, second rack (25) with gear (24) meshing, second rack (25) lower extreme and bracing piece (26) one end fixed connection, bracing piece (26) other end extends to fixed plate (21) lower extreme outside.
9. A mobile intelligent suspension crane according to claim 6, characterized in that: further comprising:
the force sensor is arranged on the first hook (8) and used for measuring the tension of a steel wire rope of the cantilever crane (7);
the speed measuring sensor is arranged on the first hook (8) and used for measuring the moving speed of the steel wire rope of the cantilever crane (7);
the timer is arranged at the upper end of the cantilever crane (7) and is used for monitoring the actual working time of the working of the cantilever crane (7);
the alarm is arranged at the upper end of the cantilever crane (7);
the controller is arranged at the upper end of the cantilever crane (7), and is electrically connected with the force measuring sensor, the speed measuring sensor, the timer and the alarm respectively;
the controller controls the alarm to work based on the force measuring sensor, the speed measuring sensor and the timer, and comprises the following steps:
step 1: the controller calculates the actual safety factor of the steel wire rope through a formula (1) based on the tension of the steel wire rope and a speed measuring sensor when a cantilever crane (7) works and monitored by a force measuring sensor:
wherein f is1As actual safety factor of the wire rope, F2Presetting a total tension, v, for the wire rope2For a predetermined travelling speed, T, of the wire rope2Preset working time, T, for the operation of the jib crane (7)1The actual working time of the cantilever crane (7), c is the number of winding strands of the steel wire rope, n is the total working times of the cantilever crane (7), and FiIs the tension of the steel wire rope when the cantilever crane (7) works for the ith time, m is the mass of the steel wire rope per meter, l is the length value of the steel wire rope, mu is the running resistance coefficient of the steel wire rope, g is the gravity acceleration, and g is 9.8m/s2，viThe moving speed of the steel wire rope is the moving speed of the cantilever crane (7) in the ith work;
step 2: the controller controls the alarm to alarm according to the calculation result of the formula (2), when S is larger than 1, the cantilever crane (7) can work normally, and the alarm does not alarm; when S is less than or equal to 1, the controller sends an instruction to control the alarm to give an alarm, and prompts a worker to replace the steel wire rope:
wherein S is the ratio of the actual safety coefficient of the steel wire rope to the preset safety coefficient, f2And a safety factor is preset for the steel wire rope.
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| CN114190322A (en) * | 2021-11-18 | 2022-03-18 | 湖南海博水产种业科技有限公司 | Fry temporary rearing system |
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| CN111943051B (en) | 2021-08-31 |
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