CN112357791B - Working method of crane - Google Patents
Working method of crane Download PDFInfo
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- CN112357791B CN112357791B CN202011312364.5A CN202011312364A CN112357791B CN 112357791 B CN112357791 B CN 112357791B CN 202011312364 A CN202011312364 A CN 202011312364A CN 112357791 B CN112357791 B CN 112357791B
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/18—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes
- B66C23/36—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
- B66C23/52—Floating cranes
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/16—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs supported by columns, e.g. towers having their lower end mounted for slewing movements
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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
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/84—Slewing gear
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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
- B66D5/06—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect
- B66D5/08—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes with radial effect embodying blocks or shoes
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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
- B66D5/26—Operating devices pneumatic or hydraulic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
Abstract
A method of operating a crane, comprising the steps of: preparing for work, wherein the rotary platform is positioned at an initial position; starting a rotation driving device; opening a hydraulic brake and driving a winch to rotate; the piston hydraulic cylinder is driven to slide the piston rod, the piston rod pushes the sliding rod through the adjusting sliding groove after moving, the connecting piece drives the movable rod to move, and the movable rod and the connecting piece move towards one end far away from the brake piece together, so that the first arc-shaped brake pad and the second arc-shaped brake pad are driven to be opened; when the pressure of a winch brake hydraulic oil circuit is insufficient, the stroke between a sliding rod of the manual adjusting piece and the adjusting sliding groove is adjusted by rotating a nut on the manual adjusting piece, so that the force of opening the brake piece by a piston rod is enhanced; starting the lifting arm part to carry out transferring work; controlling the rotary platform to rotate to a blending object placing area and placing; controlling the rotary platform to rotate to the original position of the arm part; the suspension arm part is placed on the suspension arm placing frame to complete the hoisting action, and the invention has the advantage of high hoisting safety.
Description
Technical Field
The invention relates to the technical field of cranes, in particular to a working method of a crane.
Background
In the traditional crane winch, when the winch acts, in the process that a lifting hook ascends or descends after a brake is loosened, the situation that the brake is opened insufficiently due to insufficient pressure of a brake hydraulic oil circuit occurs, so that the winch brakes and shakes again, and once the situation that the brake suddenly occurs in the lifting process of the lifting hook, goods can be unhooked; if the situation happens, the goods are damaged slightly, and casualties are caused seriously, so that the hoisting risk and the cost are greatly improved.
Disclosure of Invention
The invention provides a crane working method with safe operation, and the method can improve the safety of the crane in the hoisting process.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a working method of hoist, including the hoist, the hoist includes the deck base of installing on the deck, install on the deck and be located the deck rest seat of deck base one side, a pedestal, slewing bearing, rotary platform, the rotary drive device, tripod and davit portion, the base welding is on the deck base, the base top is connected with slewing bearing's outer lane screw rod, rotary platform's bottom and slewing bearing's inner circle screw rod are connected, tripod fixed mounting is at rotary platform's top, the davit portion articulates on rotary platform, be equipped with the winch on rotary platform and the davit portion, the winch includes the cylinder, the encoder, motor and the mount that is used for fixed cylinder, the encoder sets up the one side at the motor output, the serial communication port: the crane is provided with a rope winding mechanism, a roller hydraulic brake and a suspension arm placing frame, the rope winding mechanism sequentially penetrates and winds the rotary platform, the tripod, the suspension arm part and the lifting hook, the suspension arm placing frame is arranged on the deck placing seat, and the roller hydraulic brake is fixedly arranged on one side of a fixing frame of the winch;
The roller hydraulic brake comprises a piston hydraulic cylinder, a brake part, a swinging part, a manual adjusting part and a connecting part, the piston hydraulic cylinder is fixedly connected with a fixed frame, the connecting part is provided with a first hinge hole, one side of the first hinge hole is provided with a second hinge hole, the second hinge hole is hinged with a movable rod, one end of the swinging part is hinged with the second hinge hole of the connecting part together with the movable rod, the other end of the swinging part is hinged with a fixedly-mounted swinging lug, the swinging lug is fixedly arranged, one end of the connecting part, far away from the first hinge hole, is hinged with the manual adjusting part, the brake part comprises a first arc-shaped brake block and a second arc-shaped brake block, the first arc-shaped brake block and the second arc-shaped brake block are arranged on a roller of a roller, one end of the first arc-shaped brake block and one end of the second arc-shaped brake block are hinged on the same hole position on one side of the fixed frame, the other end of the first arc-shaped brake block is hinged with the first hinge hole of the connecting part, the other end of the second arc-shaped brake pad is hinged with one end of the movable rod far away from the connecting piece;
one side of the cylinder body of the piston hydraulic cylinder is provided with a hydraulic oil pipe, the piston hydraulic cylinder is provided with a spring frame, a piston rod of the piston hydraulic cylinder extends into the spring frame, a spring is arranged in the spring frame, one end of the spring frame, which is far away from the piston hydraulic cylinder, is provided with a limiting block, the limiting block is fixed on the spring frame through a nut, one end of the spring frame, which is close to the piston hydraulic cylinder, is provided with a movable block, the center of the movable block is provided with a mounting hole, one end of the movable block, which is far away from the piston hydraulic cylinder, is provided with a counter bore which is larger than the mounting hole, and the outer wall of the movable block is provided with a stop ring; a piston rod of the piston hydraulic cylinder extends into the mounting hole, interference fit is achieved, and meanwhile, the piston hydraulic cylinder is fixed through a radial screw; the driving rod comprises a rod body, a connecting part connected to one end of the rod body and an adjusting part connected to the other end of the rod body, the diameter of the connecting part is directly larger than that of the rod body, the connecting part is located in the counter bore, the connecting part is pressed through a pressing ring, and the pressing ring is fixed on the movable block through a bolt; the spring is sleeved on the rod body between the resisting ring and the limiting block; the driving rod is provided with a piston rod hinged part, the driving rod is hinged on the fixed frame through the piston rod hinged part, and the adjusting part is provided with an adjusting chute; the manual adjusting piece is connected with the adjusting part and extends into the adjusting chute;
The manual adjusting part comprises a sliding rod and a handle, the sliding rod is fixedly connected with the handle, the sliding rod is hinged to the connecting piece, a thread is arranged at the hinged position of the sliding rod and the connecting piece, a nut is arranged on one side of the thread of the sliding rod, and one end, far away from the handle, of the sliding rod is connected with the adjusting sliding groove;
the suspension arm rest comprises a rack, rollers, roller connecting pieces and side baffles, wherein the rollers are rotatably connected to the roller connecting pieces through pin penetrating shafts;
the rope winding mechanism comprises a main winch, a fixed pulley block, a movable pulley block and a guide pulley block, the main winch is arranged on the rotary platform, the guide pulley blocks are respectively arranged on the tripod and the lifting arm part, the fixed pulley block is arranged at one end, close to the lifting hook, of the lifting arm part, the movable pulley block is hinged with the lifting hook, and the main winch, the fixed pulley block, the movable pulley block and the guide pulley blocks are sequentially connected through a steel wire rope;
the working method of the crane comprises the following steps:
(1) preparing for work, wherein the rotary platform is positioned at an initial position;
(2) starting a rotation driving device, wherein the rotation driving device drives a rotation support and drives a rotation platform to rotate;
(3) opening a roller hydraulic brake and driving a winch to rotate;
(3.1) driving a piston hydraulic cylinder to enable a piston rod to drive a driving rod to move axially, after the driving rod moves, pushing a sliding rod through an adjusting sliding groove to enable a connecting piece to drive a movable rod to move, and enabling the movable rod and the connecting piece to move towards one end far away from a brake piece together, so that a first arc-shaped brake pad and a second arc-shaped brake pad are driven to be opened;
(3.2) when the pressure of a brake hydraulic oil path of the winch is insufficient, adjusting the stroke between a sliding rod of the manual adjusting piece and the adjusting sliding groove by rotating a nut on the manual adjusting piece, so that the pressure of the brake piece opened by the piston rod is enhanced;
(4) starting the lifting arm part and the lifting hook to carry out lifting work;
(5) controlling the rotary platform to rotate to a blending object placing area and placing;
(6) controlling the rotary platform to rotate to the original position of the lifting arm part;
(7) and placing the suspension arm part on the suspension arm placing frame to finish the hoisting action.
According to the method, before the crane is hoisted, the roller hydraulic brake is opened, the piston hydraulic cylinder is driven, the hydraulic cylinder overcomes the elasticity of the spring to push the piston rod and the driving rod to move, the driving rod pushes the sliding rod through the adjusting sliding groove after moving, the connecting piece drives the movable rod to move, the movable rod and the connecting piece move towards one end far away from the brake piece, and therefore the first arc-shaped brake pad and the second arc-shaped brake pad are driven to be opened, and the brake is opened; when winch brake hydraulic pressure oil circuit pressure is not enough, the nut on the manual regulating part is rotated to the accessible, adjust the slide bar of manual regulating part and adjust the stroke between the spout, make the stroke of piston rod increase, make the pressure reinforcing that the brake piece was opened to the piston rod, thereby solve the winch brake hydraulic pressure oil circuit pressure of traditional hoist and lead to the brake to open inadequately, the condition of winch brake shake appears, like this, can prevent to appear suddenly braking at the lifting hook in-process and lead to the goods unhook, thereby improve the security of hoist and mount process.
Furthermore, a torque meter is further arranged on the rope winding mechanism and arranged on one side of the fixed pulley block and used for measuring the weight of the hook load. In this way, the crane driver can visually observe the load weight.
Further, the piston hydraulic cylinder is fixedly connected with the fixed frame through a bolt on one side far away from the manual adjusting piece.
Further, the handle is of a C-shaped structure. In this way, manual grip adjustment is facilitated.
Furthermore, adjust the spout for being equipped with one end and being equipped with the opening and sunken cylinder that forms the spout to the other end, adjust the spout and keep away from open-ended one end and piston rod fixed connection of piston hydraulic cylinder.
Drawings
Fig. 1 is a schematic structural view of the crane according to the present invention.
Fig. 2 is a schematic structural diagram of a hydraulic drum brake according to the present invention.
FIG. 3 is a schematic top view of the hydraulic drum brake and motor of the present invention.
Fig. 4 is a rear view structural schematic diagram of the hydraulic drum brake of the present invention.
Fig. 5 is a schematic view of the rope winding mechanism according to the present invention.
Fig. 6 is a schematic structural view of the boom rest of the present invention.
Fig. 7 is an enlarged view of a in fig. 4.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
1-7, a large pile-winding type fully-revolving crane, which comprises a crane, wherein the crane comprises a deck base 1 arranged on a deck, a deck placing seat 2 arranged on the deck and positioned on one side of the deck base 1, a base, a slewing bearing, a slewing platform 3, a slewing driving device, a tripod 4 and a boom part 5, the base is welded on the deck base 1, the top of the base is connected with an outer ring screw rod of the slewing bearing, the bottom of the slewing platform is connected with an inner ring screw rod of the slewing bearing, the tripod is fixedly arranged on the top of the slewing platform, the boom part is hinged on the slewing platform, a winch is arranged on the slewing platform and the boom part, the winch comprises a roller 700, an encoder 701, a motor 702 and a fixing frame 703 for fixing the roller, the encoder is arranged on one side of the output end of the motor and is used for counting the number of rotating turns, a rope winding mechanism 6 is arranged on the crane, The rope winding mechanism sequentially penetrates and winds the rotary platform 3, the tripod 4 and the lifting arm part 5 to be connected to the lifting hook 65, the deck placing seat 2 is provided with the lifting arm placing frame 21, and the roller hydraulic brake 8 is fixedly installed on one side of a fixing frame 70 of the winch through bolts.
The roller hydraulic brake 8 comprises a piston hydraulic cylinder 81, a brake part 82, a swinging part 83, a manual adjusting part 84 and a connecting part 85, one end of the piston hydraulic cylinder 81 is hinged with the brake part 82, the other end of the piston hydraulic cylinder is fixedly connected with a fixed frame 703, the connecting part 85 is provided with a first hinged hole 851, one side of the first hinged hole 851 is provided with a second hinged hole 852, the second hinged hole 852 is hinged with a movable rod 86, one end of the swinging part 83 is hinged with the second hinged hole 852 of the connecting part together with the movable rod 86, the other end of the swinging part 83 is hinged with a swinging lug 831 fixedly installed, the swinging lug 831 is fixedly arranged, one end of the connecting part 85 far away from the first hinged hole 851 is hinged with the manual adjusting part 84, the brake part 82 comprises a first arc-shaped brake block 821 and a second arc-shaped brake block 822, the first arc-shaped brake block 821 and the second arc-shaped brake block 822 are oppositely arranged on a roller 7001 of the roller 700, one ends of the first arc-shaped brake block 821 and the second arc-shaped brake block 822 are hinged on the same hole on one side of the fixed frame 703, the other end of the first arc-shaped brake block 821 is hinged with the first hinge hole of the connecting piece 85, and the other end of the second arc-shaped brake block 822 is hinged with one end of the movable rod 86 far away from the connecting piece 85.
A hydraulic oil pipe is arranged on one side of a cylinder body of the piston hydraulic cylinder 81, a spring frame 81a is arranged on the piston hydraulic cylinder 81, a piston rod of the piston hydraulic cylinder 81 extends into the spring frame 81a, a spring 811 is arranged in the spring frame 81a, a limiting block 81b is arranged at one end of the spring frame 81a far away from the piston hydraulic cylinder 811, and the limiting block 81b is fixed on the spring frame 81a through a nut, as shown in fig. 7, a movable block 9 is arranged at one end of the spring frame 81a close to the piston hydraulic cylinder 81, a mounting hole 91 is arranged in the center of the movable block 9, a counter bore 92 larger than the mounting hole 91 is arranged at one end of the movable block 9 far away from the piston hydraulic cylinder 81, and a stop ring 93 is arranged on the outer wall of the movable block 9; a piston rod of the piston hydraulic cylinder 81 extends into the mounting hole 91 and is in interference fit with the mounting hole, and is fixed through a radial screw; the driving rod 94 is further included, the driving rod 94 includes a rod body 941, a connecting portion 942 connected to one end of the rod body 941 and an adjusting portion 942 connected to the other end of the rod body, the diameter of the connecting portion is directly larger than that of the rod body, the connecting portion is located in a counter bore, the connecting portion is pressed through a pressing ring 100, and the pressing ring 100 is fixed on the movable block through a bolt; the spring sleeve is located on the body of rod between backstop ring and the stopper. The driving rod is provided with a piston rod hinge 812, the driving rod is hinged on the fixed frame 703 through the piston rod hinge 812, and the adjusting part is provided with an adjusting chute 813.
The manual adjusting piece 84 comprises a sliding rod 841 and a handle 842, the sliding rod 841 is fixedly connected with the handle 842, the sliding rod 841 is hinged on the connecting piece 85, a thread is arranged at the hinged position of the sliding rod 841 and the connecting piece 85, a nut 843 is arranged at one side of the thread of the sliding rod 841, and one end of the sliding rod 841, far away from the handle 842, is in threaded connection with the adjusting chute 813; the handle 842 is of a C-shaped structure; adjust spout 813 for being equipped with one end and being equipped with the opening and to the cylinder that the other end sunken formation spout, adjust spout 813 and keeping away from open-ended one end and piston hydraulic cylinder 81's piston rod fixed connection.
The boom rest 21 comprises a frame 211, a roller 212, a roller connector 213 and side baffles 214, wherein the roller 212 is rotatably connected to the roller connector 213 through a pin shaft, the roller connector 213 is fixedly mounted on the top surface of the frame 211, and the side baffles 214 are arranged on two sides of the top surface of the frame 211.
The rope winding mechanism 6 comprises a main winch 61, a fixed pulley block 62, a movable pulley block 63 and a guide pulley block 64, the main winch 61 is arranged on the rotary platform 3, the guide pulley block 64 is respectively arranged on the tripod 4 and the suspension arm part 5, the fixed pulley block 62 is arranged at one end, close to the hook 65, of the suspension arm part 5, the movable pulley block 63 is hinged with the hook 65, and the main winch 61, the fixed pulley block 62, the movable pulley block 63 and the guide pulley block 64 are sequentially connected through a steel wire rope 66.
The piston hydraulic cylinder 81 is fixedly connected with a fixed frame through a bolt at one side far away from the manual adjusting piece.
The working method of the crane comprises the following steps:
(1) in preparation for operation, the rotating platform is in an initial position.
(2) And starting the rotation driving device, and driving the rotation supporting and driving the rotation platform to rotate by the rotation driving device.
(3) And opening the hydraulic brake of the roller and driving the winch to rotate.
(3.1) driving the piston hydraulic cylinder to enable the piston rod to drive the driving rod to move axially, pushing the sliding rod through the adjusting sliding groove after the driving rod moves to enable the connecting piece to drive the movable rod to move, and enabling the movable rod and the connecting piece to move towards the end far away from the brake piece, so that the first arc-shaped brake block and the second arc-shaped brake block are driven to be opened.
And (3.2) when the pressure of the winch brake hydraulic oil path is insufficient, adjusting the stroke between the sliding rod of the manual adjusting piece and the adjusting sliding groove by rotating the nut on the manual adjusting piece, so that the pressure of the piston rod for opening the brake piece is enhanced.
(4) And starting the lifting arm part and the lifting hook to carry out lifting work.
(5) And controlling the rotary platform to rotate to the blending object placing area and placing.
(6) And controlling the rotary platform to rotate to the original position of the lifting arm part.
(7) And placing the suspension arm part on the suspension arm placing frame to finish the hoisting action.
In the embodiment, in a non-working state, under the action of a spring, the first arc-shaped brake pad and the second arc-shaped brake pad are in a normally-clasped state, namely a braking state, on the condition that the brake needs to be opened in the hydraulic brake of the roller, the piston hydraulic cylinder is driven, so that the hydraulic cylinder overcomes the elastic force of the spring to push the driving rod to move, the driving rod pushes the sliding rod through the adjusting chute after moving, so that the connecting piece drives the movable rod to move, the movable rod and the connecting piece move towards one end far away from the brake piece together, and the first arc-shaped brake pad and the second arc-shaped brake pad are driven to be opened, so that the brake is opened; when the pressure of the winch brake hydraulic oil circuit is insufficient, the nut on the manual adjusting piece can be rotated to adjust the stroke between the sliding rod of the manual adjusting piece and the adjusting sliding groove, so that the stroke of the piston rod is increased, the pressure of the piston rod for opening the brake piece is enhanced, and the problems that the brake is not fully opened due to insufficient pressure of the winch brake hydraulic oil circuit of the traditional crane and the winch brake shakes are solved.
In the invention, by arranging the roller, when the suspension arm part is placed, rolling friction is provided by the roller, so that the friction between the suspension arm and the placing frame when the suspension arm shakes is reduced.
Claims (5)
1. A working method of a crane is characterized in that: including the hoist, the hoist is including installing the deck base on the deck, install on the deck and be located the deck of deck base one side and shelve the seat, a pedestal, slewing bearing, rotary platform, rotary driving device, tripod and davit portion, the base welding is on the deck base, the base top is connected with slewing bearing's outer lane screw rod, rotary platform's bottom is connected with slewing bearing's inner circle screw rod, tripod fixed mounting is at rotary platform's top, davit portion articulates on rotary platform, be equipped with the winch on rotary platform and the davit portion, the winch includes the cylinder, the encoder, the motor with be used for the mount of fixed cylinder, the encoder sets up the one side at the motor output, its characterized in that: the hoisting machine is provided with a rope winding mechanism, a roller hydraulic brake and a suspension arm placing frame, the rope winding mechanism sequentially penetrates and winds the rotary platform, the tripod, the suspension arm part and the lifting hook, the suspension arm placing frame is arranged on the deck placing seat, and the roller hydraulic brake is fixedly arranged on one side of a fixing frame of the winch;
the roller hydraulic brake comprises a piston hydraulic cylinder, a brake part, a swinging part, a manual adjusting part and a connecting part, the piston hydraulic cylinder is fixedly connected with a fixed frame, the connecting part is provided with a first hinge hole, one side of the first hinge hole is provided with a second hinge hole, the second hinge hole is hinged with a movable rod, one end of the swinging part is hinged with the second hinge hole of the connecting part together with the movable rod, the other end of the swinging part is hinged with a fixedly-mounted swinging lug, the swinging lug is fixedly arranged, one end of the connecting part, far away from the first hinge hole, is hinged with the manual adjusting part, the brake part comprises a first arc-shaped brake block and a second arc-shaped brake block, the first arc-shaped brake block and the second arc-shaped brake block are arranged on a roller of a roller, one end of the first arc-shaped brake block and one end of the second arc-shaped brake block are hinged on the same hole position on one side of the fixed frame, the other end of the first arc-shaped brake block is hinged with the first hinge hole of the connecting part, the other end of the second arc-shaped brake pad is hinged with one end of the movable rod far away from the connecting piece;
A hydraulic oil pipe is arranged on one side of a cylinder body of the piston hydraulic cylinder, a spring frame is arranged on the piston hydraulic cylinder, a piston rod of the piston hydraulic cylinder extends into the spring frame, a spring is arranged in the spring frame, a limiting block is arranged at one end, far away from the piston hydraulic cylinder, of the spring frame, the limiting block is fixed on the spring frame through a nut, a movable block is arranged at one end, close to the piston hydraulic cylinder, of the spring frame, a mounting hole is formed in the center of the movable block, a counter bore larger than the mounting hole is formed in one end, far away from the piston hydraulic cylinder, of the movable block, and a retaining ring is arranged on the outer wall of the movable block; a piston rod of the piston hydraulic cylinder extends into the mounting hole, interference fit is achieved, and meanwhile, the piston hydraulic cylinder is fixed through a radial screw; the driving rod comprises a rod body, a connecting part connected to one end of the rod body and an adjusting part connected to the other end of the rod body, the diameter of the connecting part is directly larger than that of the rod body, the connecting part is positioned in the counter bore, the connecting part is pressed through a pressing ring, and the pressing ring is fixed on the movable block through a bolt; the spring is sleeved on the rod body between the resisting ring and the limiting block; the drive rod is provided with a piston rod hinged part, the drive rod is hinged on the fixed frame through the piston rod hinged part, and the adjusting part is provided with an adjusting chute; the manual adjusting piece is connected with the adjusting part and extends into the adjusting chute;
The manual adjusting part comprises a sliding rod and a handle, the sliding rod is fixedly connected with the handle, the sliding rod is hinged to the connecting piece, a thread is arranged at the hinged position of the sliding rod and the connecting piece, a nut is arranged on one side of the thread of the sliding rod, and one end, far away from the handle, of the sliding rod is connected with the adjusting sliding groove;
the suspension arm rest comprises a rack, rollers, roller connecting pieces and side baffles, wherein the rollers are rotatably connected to the roller connecting pieces through pin penetrating shafts;
the rope winding mechanism comprises a main winch, a fixed pulley block, a movable pulley block and a guide pulley block, the main winch is arranged on the rotary platform, the guide pulley block is respectively arranged on the tripod and the lifting arm part, the fixed pulley block is arranged at one end, close to the lifting hook, of the lifting arm part, the movable pulley block is hinged with the lifting hook, and the main winch, the fixed pulley block, the movable pulley block and the guide pulley block are sequentially connected through a steel wire rope;
the working method of the crane comprises the following steps:
(1) preparing for work, wherein the rotary platform is positioned at an initial position;
(2) starting a rotation driving device, wherein the rotation driving device drives a rotation support and drives a rotation platform to rotate;
(3) opening a roller hydraulic brake, and driving a winch to rotate;
(3.1) driving a piston hydraulic cylinder to enable a piston rod to drive a driving rod to move axially, after the driving rod moves, pushing a sliding rod through an adjusting sliding groove to enable a connecting piece to drive a movable rod to move, and enabling the movable rod and the connecting piece to move towards one end far away from a brake piece together, so that a first arc-shaped brake pad and a second arc-shaped brake pad are driven to be opened;
(3.2) when the pressure of a brake hydraulic oil path of the winch is insufficient, adjusting the stroke between a sliding rod of the manual adjusting piece and the adjusting sliding groove by rotating a nut on the manual adjusting piece, so that the pressure of the brake piece opened by the piston rod is enhanced;
(4) starting the lifting arm part and the lifting hook to carry out lifting work;
(5) controlling the rotary platform to rotate to a blending object placing area and placing;
(6) controlling the rotary platform to rotate to the original position of the arm part;
(7) and placing the suspension arm part on the suspension arm rest stand to finish the hoisting action.
2. A method of operating a crane according to claim 1, wherein: the rope winding mechanism is further provided with a torque meter, and the torque meter is arranged on one side of the fixed pulley block and used for measuring the weight of the hook load.
3. A method of operating a crane according to claim 1, wherein: and the piston hydraulic cylinder is fixedly connected with the fixed frame through a bolt at one side far away from the manual adjusting piece.
4. A method of operating a crane according to claim 1, wherein: the handle is in a C-shaped structure.
5. A method of operating a crane according to claim 1, wherein: the adjusting sliding groove is a cylinder with one end provided with a sliding groove formed by sinking the opening towards the other end, and the end far away from the opening of the adjusting sliding groove is fixedly connected with a piston rod of the piston hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312364.5A CN112357791B (en) | 2020-11-20 | 2020-11-20 | Working method of crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011312364.5A CN112357791B (en) | 2020-11-20 | 2020-11-20 | Working method of crane |
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| Publication Number | Publication Date |
|---|---|
| CN112357791A CN112357791A (en) | 2021-02-12 |
| CN112357791B true CN112357791B (en) | 2022-07-19 |
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| CN202011312364.5A Active CN112357791B (en) | 2020-11-20 | 2020-11-20 | Working method of crane |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663178A (en) * | 2013-11-25 | 2014-03-26 | 无锡起岸重工机械有限公司 | Marine fixed-amplitude hydraulic crane |
| DE102016002251A1 (en) * | 2016-02-26 | 2017-08-31 | Tts Marine Gmbh | Method of handling deck harnesses on ships, and a winch for deck harness of ships |
| CN109592571A (en) * | 2018-10-31 | 2019-04-09 | 中船华南船舶机械有限公司 | A kind of crane based on hydraulic system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP5745484B2 (en) * | 2012-09-25 | 2015-07-08 | 日立住友重機械建機クレーン株式会社 | Winch braking device |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663178A (en) * | 2013-11-25 | 2014-03-26 | 无锡起岸重工机械有限公司 | Marine fixed-amplitude hydraulic crane |
| DE102016002251A1 (en) * | 2016-02-26 | 2017-08-31 | Tts Marine Gmbh | Method of handling deck harnesses on ships, and a winch for deck harness of ships |
| CN109592571A (en) * | 2018-10-31 | 2019-04-09 | 中船华南船舶机械有限公司 | A kind of crane based on hydraulic system |
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| CN112357791A (en) | 2021-02-12 |
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