CN111392581B - Internal holding type anti-skid lifting appliance of engineering construction crane - Google Patents
Internal holding type anti-skid lifting appliance of engineering construction crane Download PDFInfo
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- CN111392581B CN111392581B CN202010330092.5A CN202010330092A CN111392581B CN 111392581 B CN111392581 B CN 111392581B CN 202010330092 A CN202010330092 A CN 202010330092A CN 111392581 B CN111392581 B CN 111392581B
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- skid
- block
- hydraulic
- auxiliary anti
- clasping
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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
- B66C1/42—Gripping members engaging only the external or internal surfaces of the articles
- B66C1/44—Gripping members engaging only the external or internal surfaces of the articles and applying frictional forces
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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
Abstract
The invention discloses an internal holding type anti-skidding lifting appliance of an engineering construction crane, which comprises a lifting rope, wherein the lower end of the lifting rope is fixedly connected with the internal holding type anti-skidding lifting appliance in a hanging manner; the lifting rope can drive the inner holding type anti-skidding lifting appliance to descend into the lifted cylinder; the inner holding type anti-skid lifting appliance can tightly hold the inner wall of the lifted cylinder outwards, so that the inner holding type anti-skid lifting appliance drives the lifted cylinder to synchronously lift; the invention has simple structure, adopts a clasping type structure without hooks, thus saving a great deal of cost without prefabricating hanging points on the cylinder structure.
Description
Technical Field
The invention belongs to the field of cranes.
Background
The steel cylinder for filling the sea and building the island, the vertical cylindrical boiler and other cylindrical structures need to be hoisted on the basis of keeping the vertical posture, and the traditional method needs to prefabricate a plurality of uniform hanging points at the top of the hoisted cylinder, so that a plurality of hooks of the crane are respectively and uniformly arranged on the plurality of hanging points and then are normally hoisted, and the plurality of hanging points are prefabricated on the cylinder while the process is various, so that the cost is huge;
the reliability of hoisting in a hook-free clasping mode is higher than that of traditional hook-type hoisting, for example, static friction between the clasper and the inner wall of the hoisted cylinder can be overcome due to shaking of hoisting equipment in the hoisting process of the hoisted cylinder or during high-amplitude swing of strong wind, so that relative sliding occurs, and at the moment, the risk that the inner clasping type anti-skidding lifting appliance and the hoisted cylinder fall off each other can occur.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects in the prior art, the invention provides an anti-drop internal holding type anti-slip lifting appliance of an engineering construction crane and a lifting construction method.
The technical scheme is as follows: in order to achieve the purpose, the inner-holding type anti-skidding lifting appliance of the engineering construction crane comprises a lifting rope, wherein the lower end of the lifting rope is fixedly connected with the inner-holding type anti-skidding lifting appliance in a hanging manner; the lifting rope can drive the inner holding type anti-skidding lifting appliance to descend into the lifted cylinder; the inner holding type anti-skidding lifting appliance can tightly hold the inner wall of the lifted cylinder outwards, so that the inner holding type anti-skidding lifting appliance drives the lifted cylinder to synchronously lift.
Furthermore, the inner holding type anti-skidding lifting appliance comprises a vertical central motor, and at least four holding devices are distributed around the central motor in a circumferential array manner; the central electric motor can drive the four clasping devices to synchronously move close to the central motor or synchronously move away from the central motor.
Furthermore, a plurality of fixed piles are fixedly connected to the periphery of the shell of the central motor, each fixed pile is connected with an upward extending suspension rod, and the upper ends of the suspension rods are connected to the horizontal suspension frame; the lower end of the hoisting rope is fixedly connected with the central part of the upper part of the suspension bracket.
Further, an output shaft of the central motor is vertically upward, the upper end of the output shaft is integrally connected with a threaded transmission rod coaxially, and the threaded transmission rod is in threaded transmission connection with a threaded sleeve; the outer ring of the threaded sleeve is connected with four first hinge parts in a circumferential array;
the lower end of the shell of the central motor is fixedly connected with a cylinder extending downwards, and the cylinder and the output shaft are coaxially arranged; four second hinge parts are connected to the periphery of the lower end of the column body in a circumferential array;
the upper end of each fastener is provided with a third hinge joint, and the lower end of each fastener is provided with a fourth hinge joint; each clamping device is correspondingly provided with an upper swing arm and a lower swing arm, and the upper swing arm and the lower swing arm are equal in length; the lower end of the upper swing arm is hinged to the third hinge piece, and the upper end of the upper swing arm is hinged to the first hinge piece; the upper end of the lower swing arm is hinged to the fourth hinged part, and the lower end of the lower swing arm is hinged to the second hinged part.
Furthermore, each clamping device comprises a left clamping block and a right clamping block which are symmetrical left and right; the upper ends of the left holding block and the right holding block are fixedly connected through an upper connecting beam, and the third hinge piece is connected to the middle part of the upper connecting beam; the lower extreme of the tight piece is embraced with the right side in a left side and lower tie-beam fixed connection is passed through, the fourth articulated elements is connected the middle part of tie-beam down.
Furthermore, one side surface, far away from the central motor, of the left enclasping block is a first enclasping surface, and a plurality of first anti-slip strips distributed in an array are arranged on the first enclasping surface; one side surface, far away from the central motor, of the right holding block is a second holding surface, and a plurality of second anti-slip strips distributed in an array are arranged on the second holding surface; when the inner holding type anti-skidding lifting appliance tightly holds the inner wall of the lifted cylinder body, the plurality of first anti-skidding strips on the first holding surface and the plurality of second anti-skidding strips on the second holding surface tightly press and attach to the inner wall of the lifted cylinder body.
Furthermore, an auxiliary anti-skid block control wheel is arranged between the left enclasping block and the right enclasping block, and the wheel body axis of the auxiliary anti-skid block control wheel is vertical to the output shaft axis of the central motor; the outer ring of the auxiliary anti-skid block control wheel is an elastic anti-skid tire;
under the condition that the plurality of first anti-slip strips on the first holding surface and the plurality of second anti-slip strips on the second holding surface are tightly pressed and attached to the inner wall of the lifted cylinder body, the auxiliary anti-slip block control wheel is in rolling fit with the inner wall of the lifted cylinder body through the elastic anti-slip tire;
the right side of the auxiliary anti-skid block control wheel is coaxially and integrally connected with a bearing sleeve, the left side of the right holding block is integrally provided with a circular flange, and the bearing sleeve is in rotating close fit connection with the outer ring of the circular flange through a first bearing;
the axle center of the auxiliary anti-skid block control wheel is provided with an inner hexagonal through hole in a coaxial through way, the auxiliary anti-skid block control wheel also comprises a transmission shaft which penetrates through the inner hexagonal through hole in a sliding way and has a regular hexagonal cross section, and the torque of the auxiliary anti-skid block control wheel can be transmitted to the transmission shaft through the inner hexagonal through hole; threaded holes are formed in the left holding block and the right holding block in a through mode, threaded pushing rods are connected to the threaded holes in an internal thread mode, and the threaded pushing rods are integrally connected with the left end of the transmission shaft through a connecting shaft and the same axis;
a hydraulic column cavity is arranged in the right holding block, the hydraulic column cavity and the transmission shaft are coaxially arranged, a hydraulic piston is coaxially arranged in the hydraulic column cavity in a sliding manner, a push rod through hole is formed in the left side of the hydraulic column cavity in a hollow manner, the hydraulic column cavity further comprises a hydraulic push rod penetrating through the push rod through hole, and the right end of the hydraulic push rod is fixedly connected with the hydraulic piston coaxially; the right end of the transmission shaft is coaxially provided with a bearing blind hole, the left end of the hydraulic ejector rod coaxially extends into the bearing blind hole, and the spherical top of the left end of the hydraulic ejector rod presses against the bottom of the bearing blind hole; the outer wall of the left end of the hydraulic ejector rod is in rotating tight fit connection with the inner wall of the bearing blind hole through a plurality of second bearings;
a groove is formed in the middle of the second enclasping surface, an auxiliary anti-skid block is arranged in the groove, the outer side surface of the auxiliary anti-skid block is an auxiliary anti-skid surface, and the auxiliary anti-skid surface is level to the second enclasping surface; a plurality of piston channels are vertically arranged at the bottom of the groove, a second hydraulic piston is movably arranged in each piston channel, and each second hydraulic piston is fixedly connected with one end, far away from the auxiliary anti-skid surface, of the auxiliary anti-skid block through a hydraulic push rod; the hydraulic push rod can push the auxiliary anti-skid block outwards in the direction away from the central motor under the action of hydraulic pressure, so that the auxiliary anti-skid surface of the auxiliary anti-skid block tightly presses against the inner wall of the lifted cylinder;
the inside of right side hug tight piece is provided with transition hydraulic pressure chamber, and the one end that supplementary non slipping spur was kept away from to a plurality of piston passageways all communicates transition hydraulic pressure chamber, transition hydraulic pressure chamber with hydraulic column chamber passes through the drain passageway intercommunication.
Furthermore, elasticity antiskid tyre is the elasticity rubber material, supplementary non-skid surface, first antislip strip and the second antislip strip of supplementary non-skid shoe are skid-proof fine and close rubber material.
Has the advantages that: the invention has simple structure, adopts a clasping type structure without a hook, saves a large amount of cost without prefabricating hanging points on a cylinder structure, and under the condition of shaking equipment or swinging greatly due to strong wind, if the static friction force between a plurality of first anti-slip strips on a first clasping surface and a plurality of second anti-slip strips on a second clasping surface of a clasping device and the inner wall of a lifted cylinder cannot sufficiently overcome the self gravity of the lifted cylinder, the clasping device slides upwards relatively on the inner wall of the lifted cylinder, when the clasping device slides upwards relatively on the inner wall of the lifted cylinder, the auxiliary anti-slip block control wheel rolls upwards relatively on the inner wall of the lifted cylinder, so that the auxiliary anti-slip block control wheel rotates a certain angle along the axis of the auxiliary anti-slip block control wheel, then the rotating torque of the auxiliary anti-slip block control wheel is transmitted to the transmission shaft through the inner hexagonal through hole, the torque transmitted to the transmission shaft by the auxiliary anti-skid control wheel can be controlled by controlling the diameter of the auxiliary anti-skid control wheel, so that the transmission shaft rotates by a certain angle, the rotation of the transmission shaft can drive the synchronous rotation of the threaded push rod, the rotation of the threaded push rod can drive the threaded push rod to move rightwards by one distance under the screw thread push of the screw thread in the threaded hole, and the rightwards push of the threaded push rod can synchronously drive the connecting shaft, the transmission shaft, the hydraulic ejector rod and the hydraulic piston to synchronously push rightwards; the rightward propulsion of the hydraulic pistons is transmitted to a plurality of second hydraulic pistons through hydraulic pressure, and then each second hydraulic piston drives a hydraulic push rod to push the auxiliary anti-skid block outwards in the direction away from the central motor, so that the auxiliary anti-skid surface of the auxiliary anti-skid block tightly presses against the inner wall of the hoisted cylinder, and the friction force between the clamping device and the inner wall of the hoisted cylinder is increased; in practice, the torque of the transmission shaft can be controlled by controlling the diameter of the control wheel of the auxiliary anti-skid block, so that the auxiliary anti-skid surface of the auxiliary anti-skid block theoretically can be used for pressing the inner wall of the lifted cylinder body tightly, the pressing force can be any large, in the embodiment, the auxiliary anti-skid surface of the auxiliary anti-skid block can be used for pressing the inner wall of the lifted cylinder body tightly, and the friction force generated after the inner wall of the lifted cylinder body is pressed tightly is enough to prevent the locking device from sliding upwards relatively on the inner wall of the lifted cylinder body; thereby in time preventing the locking device from relatively upwards sliding on the inner wall of the lifted cylinder body, and avoiding the risk of mutual falling between the inner locking type anti-skidding lifting appliance and the lifted cylinder body.
Drawings
FIG. 1 is a schematic structural view of an internal holding type antiskid lifting appliance;
FIG. 2 is a schematic structural view at 41 of FIG. 1;
FIG. 3 is a second schematic view of FIG. 1 at 41;
FIG. 4 is a schematic structural view of the clasper;
FIG. 5 is a schematic view of a cut-away structure of the clasper;
FIG. 6 is a schematic cross-sectional view of the tightening device;
FIG. 7 is a schematic view of a transmission shaft structure;
FIG. 8 is a schematic structural diagram of the internal holding type antiskid lifting appliance and a lifted cylinder body when the internal holding type antiskid lifting appliance and the lifted cylinder body are separated from each other;
FIG. 9 is a schematic structural diagram of the internal holding type anti-skid sling holding in the lifted cylinder;
fig. 10 is a top view of fig. 9.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The inner holding type anti-skid sling of the engineering construction crane shown in the attached drawings 1 to 10 comprises a lifting rope 32, wherein the lower end of the lifting rope 32 is fixedly connected with an inner holding type anti-skid sling 31 in a hanging manner; the lifting rope 32 can drive the internal holding type anti-skidding lifting appliance 31 to descend to extend into the lifted cylinder 33; the internal holding type antiskid lifting appliance 31 can tightly hold the inner wall 34 of the lifted cylinder 33 outwards, so that the internal holding type antiskid lifting appliance 31 drives the lifted cylinder 33 to synchronously lift.
The inner holding type antiskid lifting appliance 31 comprises a vertical central motor 37, and at least four holding devices 41 are distributed around the central motor 37 in a circumferential array; the central motor 37 can drive the four claspers 41 to synchronously move close to the central motor 37 or synchronously move away from the central motor 37.
A plurality of fixing piles 40 are fixedly connected to the periphery of the shell of the central motor 37, each fixing pile 40 is connected with an upward extending suspension rod 36, and the upper ends of the suspension rods 36 are connected to the horizontal suspension frame 35; the lower end of the lifting rope 32 is fixedly connected with the central part of the upper part of the suspension bracket 35.
An output shaft 46 of the central motor 37 is vertically upward, the upper end of the output shaft 46 is coaxially and integrally connected with a threaded transmission rod 45, and a threaded sleeve 44 is in threaded transmission connection on the threaded transmission rod 45; the outer ring of the threaded sleeve 44 is connected with four first hinge parts 43 in a circumferential array;
the lower end of the shell of the central motor 37 is fixedly connected with a cylinder 47 extending downwards, and the cylinder 47 and the output shaft 46 are coaxially arranged; four second hinge members 38 are connected to the periphery of the lower end of the cylinder 47 in a circumferential array;
the upper end of each fastener 41 is provided with a third hinge 50, and the lower end of each fastener 41 is provided with a fourth hinge 51; each fastener 41 is correspondingly provided with an upper swing arm 42 and a lower swing arm 39, and the upper swing arm 42 is as long as the lower swing arm 39; the lower end of the upper swing arm 42 is hinged on the third hinge 50, and the upper end of the upper swing arm 42 is hinged on the first hinge 43; the upper end of the lower swing arm 39 is hinged to the fourth hinge 51 and the lower end of the lower swing arm 39 is hinged to the second hinge 38.
Each clasper 41 comprises a left clasping block 24 and a right clasping block 15 which are symmetrical left and right; the upper ends of the left holding block 24 and the right holding block 15 are fixedly connected through an upper connecting beam 52, and a third hinge piece 50 is connected to the middle part of the upper connecting beam 52; the lower ends of the left holding block 24 and the right holding block 15 are fixedly connected through a lower connecting beam 53, and a fourth hinge 51 is connected to the middle of the lower connecting beam 53.
One side surface of the left clasping block 24, which is far away from the central motor 37, is a first clasping surface 27, and a plurality of first anti-slip strips 28 distributed in an array are arranged on the first clasping surface 27; one side surface of the right enclasping block 15, which is far away from the central motor 37, is a second enclasping surface 9, and a plurality of second anti-slip strips 29 distributed in an array are arranged on the second enclasping surface 9; when the internal holding type antiskid lifting appliance 31 tightly holds the inner wall 34 of the lifted cylinder 33, the first antiskid strips 28 on the first holding surface 27 and the second antiskid strips 29 on the second holding surface 9 tightly press and attach to the inner wall 34 of the lifted cylinder 33.
An auxiliary anti-skid block control wheel 1 is arranged between the left holding block 24 and the right holding block 15, and the wheel body axis of the auxiliary anti-skid block control wheel 1 is vertical to the axis of an output shaft 46 of the central motor 37; the outer ring of the auxiliary anti-skid block control wheel 1 is an elastic anti-skid tyre 1.1;
under the condition that the plurality of first anti-slip strips 28 on the first clasping surface 27 and the plurality of second anti-slip strips 29 on the second clasping surface 9 are tightly pressed and attached on the inner wall 34 of the lifted cylinder 33, the auxiliary anti-slip block control wheel 1 is in rolling fit with the inner wall 34 of the lifted cylinder 33 through the elastic anti-slip tire 1.1;
the right side of the auxiliary anti-skid block control wheel 1 is coaxially and integrally connected with a bearing sleeve 19, the left side of the right holding block 15 is integrally provided with a circular flange 2, and the bearing sleeve 19 is in rotating close fit connection with the outer ring of the circular flange 2 through a first bearing 20;
the axle center of the auxiliary anti-skid block control wheel 1 is provided with an inner hexagonal through hole 3 in a coaxial through way, the auxiliary anti-skid block control wheel also comprises a transmission shaft 23 with a regular hexagonal cross section and capable of sliding through the inner hexagonal through hole 3, and the torque of the auxiliary anti-skid block control wheel 1 can be transmitted to the transmission shaft 23 through the inner hexagonal through hole 3; a threaded hole 26 is formed in the left holding block 24 in a left-right through mode, a threaded push rod 25 is connected to the threaded hole 26 in an internal thread mode, and the threaded push rod 25 is integrally connected with the left end of the transmission shaft 23 through a connecting shaft 30 in a coaxial mode;
a hydraulic column cavity 16 is arranged in the right holding block 15, the hydraulic column cavity 16 and the transmission shaft 23 are coaxially arranged, a hydraulic piston 17 is coaxially arranged in the hydraulic column cavity 16 in a sliding manner, a push rod through hole 5 is arranged in the left side of the hydraulic column cavity 16 in a hollow manner, the hydraulic holding block further comprises a hydraulic push rod 18 penetrating through the push rod through hole 5, and the right end of the hydraulic push rod 18 is coaxially and fixedly connected with the hydraulic piston 17; the right end of the transmission shaft 23 is coaxially provided with a bearing blind hole, the left end of the hydraulic ejector rod 18 coaxially extends into the bearing blind hole, and the spherical top 21 at the left end of the hydraulic ejector rod 18 is pressed against the bottom of the bearing blind hole; the outer wall of the left end of the hydraulic ejector rod 18 is in rotating tight fit connection with the inner wall of the bearing blind hole through a plurality of second bearings 4;
a groove 10 is formed in the middle of the second holding surface 9, an auxiliary anti-skid block 6 is arranged in the groove 10, the outer side surface of the auxiliary anti-skid block 6 is an auxiliary anti-skid surface 6.1, and the auxiliary anti-skid surface 6.1 is flush with the second holding surface 9; a plurality of piston channels 7 are vertically arranged at the bottom of the groove 10, a second hydraulic piston 12 is movably arranged in each piston channel 7, and each second hydraulic piston 12 is fixedly connected with one end, far away from the auxiliary anti-skid surface 6.1, of the auxiliary anti-skid block 6 through a hydraulic push rod 11; the hydraulic push rod 11 can push the auxiliary anti-skid block 6 outwards in the direction away from the central motor 37 under the action of hydraulic pressure, so that the auxiliary anti-skid surface 6.1 of the auxiliary anti-skid block 6 tightly presses against the inner wall 34 of the lifted cylinder 33;
the inside of right holding block 15 is provided with transition hydraulic pressure chamber 13, and the one end that supplementary non slipping spur 6 was kept away from to a plurality of piston passageways 7 all communicates transition hydraulic pressure chamber 13, and transition hydraulic pressure chamber 13 and hydraulic column chamber 16 pass through drain passage 14 and communicate.
The transition hydraulic cavity 13, the hydraulic column cavity 16, the liquid guide channel 14 and the piston channel 7 of the present embodiment are filled with hydraulic oil.
In order to increase the friction force, the elastic anti-skid tire 1.1 of the present embodiment is made of elastic rubber, and the auxiliary anti-skid surface 6.1, the first anti-skid strips 28 and the second anti-skid strips 29 of the auxiliary anti-skid block 6 are made of anti-skid dense rubber.
The hoisting construction method for the cylindrical object on the basis of the device and the working principle of the scheme are as follows:
firstly, the hoisting rope 32 drives the inner holding type antiskid lifting appliance 31 to integrally descend to extend into the hoisted cylinder 33, and at the moment, four holding devices 41 of the holding type antiskid lifting appliance 31 do not contact the inner wall of the cylinder 33;
step two, controlling the central motor 37, so that the output shaft 46 drives the threaded transmission rod 45 to rotate positively, and the positive rotation of the threaded transmission rod 45 drives the threaded sleeve 44 to transmit downwards under the action of threaded transmission; the downward movement of the threaded sleeve 44 enables each clamping device 41 to move away from the central motor 37 gradually under the linkage of the lower swing arm 39 and the upper swing arm 42, and the downward transmission is continued along with the threaded sleeve 44 until a plurality of first anti-slip strips 28 on the first clamping surface 27 and a plurality of second anti-slip strips 29 on the second clamping surface 9 of each clamping device 41 are tightly pressed and clamped on the inner wall 34 of the lifted cylinder 33, and meanwhile, the auxiliary anti-slip block control wheel 1 is in rolling fit with the inner wall 34 of the lifted cylinder 33 through the elastic anti-slip tyre 1.1; at this point the central motor 37 is halted, so that the threaded transmission rod 45 does not rotate; in the motor pause state, a lower swing arm 39 is set as a, an upper swing arm 42 is set as b, and the combination of a central motor 37, a threaded transmission rod 45 and a column 47 is set as c; the combination of abc forms a triangular stable structure, so that the first anti-slip strips 28 on the first clasping surface 27 and the second anti-slip strips 29 on the second clasping surface 9 of each clasping device 41 are tightly pressed and clasped on the inner wall 34 of the lifted cylinder 33, and the clasping type anti-slip hanger 31 is clasped on the inner wall 34 of the lifted cylinder 33;
step three, the hoisting rope 32 pulls the inner holding type antiskid lifting appliance 31 upwards, so that the inner holding type antiskid lifting appliance 31 integrally moves upwards, and the inner wall 34 of the hoisted cylinder 33 is already held by the inner holding type antiskid lifting appliance 31 at the moment;
under normal conditions, the static friction force between the first antislip strips 28 on the first clasping surface 27 of the clasper 41 and the second antislip strips 29 on the second clasping surface 9 and the inner wall 34 of the lifted cylinder 33 is enough to overcome the gravity of the lifted cylinder 33, so that the clasper 41 and the inner wall 34 of the lifted cylinder 33 cannot slide relatively, the auxiliary antislip block control wheel 1 cannot roll on the inner wall 34 of the lifted cylinder 33, the transmission shaft 23 cannot rotate, and the auxiliary antislip blocks 6 cannot be ejected by hydraulic pressure; at this time, the hoisted cylinder 33 can synchronously ascend along with the internal holding type anti-skidding lifting appliance 31, so that hoisting of the hoisted cylinder 33 is realized;
the static friction force between the clasper 41 and the inner wall 34 of the hoisted cylinder 33 can be overcome due to the shaking of hoisting equipment or the high-amplitude swing of strong wind in the hoisting and hoisting process of the hoisted cylinder 33, so that relative sliding occurs, and at the moment, the risk of mutual falling between the inner clasping type anti-skidding lifting appliance 31 and the hoisted cylinder 33 can occur;
under the condition of shaking equipment or large swing due to strong wind, if the static friction force between the first antislip strips 28 on the first clasping surface 27 and the second antislip strips 29 on the second clasping surface 9 of the clasping device 41 and the inner wall 34 of the lifted cylinder 33 cannot sufficiently overcome the gravity of the lifted cylinder 33, the clasping device 41 slides upwards relatively on the inner wall 34 of the lifted cylinder 33, when the clasping device 41 slides upwards relatively on the inner wall 34 of the lifted cylinder 33, the auxiliary antislip block control wheel 1 rolls upwards relatively on the inner wall 34 of the lifted cylinder 33, so that the auxiliary antislip block control wheel 1 rotates a certain angle along the axis of the auxiliary antislip block control wheel 1, then the rotating torque of the auxiliary antislip block control wheel 1 is transmitted to the transmission shaft 23 through the inner hexagonal through hole 3, in the practical process, the torque transmitted to the transmission shaft 23 by the auxiliary antislip block control wheel 1 can be controlled by controlling the diameter of the auxiliary antislip block control wheel 1, therefore, the transmission shaft 23 rotates by a certain angle, the rotation of the transmission shaft 23 can drive the screw thread pushing rod 25 to synchronously rotate, the rotation of the screw thread pushing rod 25 can drive the screw thread pushing rod to move rightwards by a distance under the screw thread pushing action of the screw thread in the threaded hole 26, and the rightwards pushing of the screw thread pushing rod 25 can synchronously drive the connecting shaft 30, the transmission shaft 23, the hydraulic ejector rod 18 and the hydraulic piston 17 to synchronously push rightwards; the rightward propulsion of the hydraulic piston 17 is transmitted to a plurality of second hydraulic pistons 12 through hydraulic pressure, then each second hydraulic piston 12 drives the hydraulic push rod 11 to push the auxiliary anti-skid block 6 outwards in a direction away from the central motor 37, so that the auxiliary anti-skid surface 6.1 of the auxiliary anti-skid block 6 tightly presses against the inner wall 34 of the lifted cylinder 33, and the friction force between the clasping device 41 and the inner wall 34 of the lifted cylinder 33 is increased; in practice, the torque of the transmission shaft 23 can be controlled by controlling the diameter of the auxiliary anti-skid block control wheel 1, and therefore, theoretically, the pressing force of the auxiliary anti-skid surface 6.1 of the auxiliary anti-skid block 6 tightly pressing against the inner wall 34 of the lifted cylinder 33 can be any large, and in the embodiment, the friction force generated after the auxiliary anti-skid surface 6.1 of the auxiliary anti-skid block 6 tightly pressing against the inner wall 34 of the lifted cylinder 33 is enough to prevent the locking device 41 from sliding upwards relatively on the inner wall 34 of the lifted cylinder 33; therefore, the clasper 41 is prevented from sliding upwards relatively on the inner wall 34 of the lifted cylinder 33 in time, and the risk that the inner clasping type antiskid lifting appliance 31 and the lifted cylinder 33 fall off from each other is avoided.
The above is only a preferred embodiment of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the invention and these are intended to be within the scope of the invention.
Claims (2)
1. The inner-holding type anti-skidding lifting appliance of the engineering construction crane comprises a lifting rope (32), wherein the lower end of the lifting rope (32) is fixedly connected with an inner-holding type anti-skidding lifting appliance (31) in a hanging manner; the lifting rope (32) can drive the inner holding type anti-skidding lifting appliance (31) to descend into the lifted cylinder (33); the inner tightly-holding type anti-skidding lifting appliance (31) can tightly hold the inner wall (34) of the lifted cylinder body (33) outwards, so that the inner tightly-holding type anti-skidding lifting appliance (31) drives the lifted cylinder body (33) to synchronously lift;
the inner holding type anti-skidding lifting appliance (31) comprises a vertical central motor (37), and at least four holding devices (41) are distributed on the periphery of the central motor (37) in a circumferential array manner; the central motor (37) can drive the four claspers (41) to synchronously move close to the central motor (37) or synchronously move away from the central motor (37);
a plurality of fixing piles (40) are fixedly connected to the periphery of a shell of the central motor (37), each fixing pile (40) is connected with an upward extending suspension rod (36), and the upper ends of the suspension rods (36) are connected to a horizontal suspension frame (35); the lower end of the hoisting rope (32) is fixedly connected with the central part of the upper part of the suspension bracket (35);
an output shaft (46) of the central motor (37) is vertically upward, the upper end of the output shaft (46) is coaxially and integrally connected with a threaded transmission rod (45), and a threaded sleeve (44) is in threaded transmission connection on the threaded transmission rod (45); the outer ring of the threaded sleeve (44) is connected with four first hinge parts (43) in a circumferential array;
the lower end of the shell of the central motor (37) is fixedly connected with a cylinder (47) extending downwards, and the cylinder (47) and the output shaft (46) are coaxially arranged; four second hinging pieces (38) are connected around the lower end of the cylinder (47) in a circumferential array;
the upper end of each fastener (41) is provided with a third hinge (50), and the lower end of each fastener (41) is provided with a fourth hinge (51); each tightener (41) is correspondingly provided with an upper swing arm (42) and a lower swing arm (39), and the upper swing arm (42) and the lower swing arm (39) are equal in length; the lower end of the upper swing arm (42) is hinged to the third hinge piece (50), and the upper end of the upper swing arm (42) is hinged to the first hinge piece (43); the upper end of the lower swing arm (39) is hinged on a fourth hinge part (51), and the lower end of the lower swing arm (39) is hinged on a second hinge part (38);
each clasper (41) comprises a left clasping block (24) and a right clasping block (15) which are bilaterally symmetrical; the upper ends of the left holding block (24) and the right holding block (15) are fixedly connected through an upper connecting beam (52), and the third hinge piece (50) is connected to the middle of the upper connecting beam (52); the lower ends of the left holding block (24) and the right holding block (15) are fixedly connected through a lower connecting beam (53), and the fourth hinge piece (51) is connected to the middle of the lower connecting beam (53);
one side surface, far away from the central motor (37), of the left enclasping block (24) is a first enclasping surface (27), and a plurality of first anti-slip strips (28) distributed in an array are arranged on the first enclasping surface (27); one side surface, far away from the central motor (37), of the right clasping block (15) is a second clasping surface (9), and a plurality of second anti-slip strips (29) distributed in an array are arranged on the second clasping surface (9); when the internal holding type antiskid lifting appliance (31) tightly holds the inner wall (34) of the lifted cylinder (33), the plurality of first antiskid strips (28) on the first holding surface (27) and the plurality of second antiskid strips (29) on the second holding surface (9) tightly press and attach to the inner wall (34) of the lifted cylinder (33);
an auxiliary anti-skid block control wheel (1) is arranged between the left clasping block (24) and the right clasping block (15), and the axis of the wheel body of the auxiliary anti-skid block control wheel (1) is vertical to the axis of an output shaft (46) of the central motor (37); the outer ring of the auxiliary anti-skid block control wheel (1) is an elastic anti-skid tyre (1.1);
under the condition that the plurality of first anti-skid strips (28) on the first clasping surface (27) and the plurality of second anti-skid strips (29) on the second clasping surface (9) are tightly pressed and attached to the inner wall (34) of the lifted cylinder (33), the auxiliary anti-skid block control wheel (1) is in rolling fit with the inner wall (34) of the lifted cylinder (33) through the elastic anti-skid tire (1.1);
the right side of the auxiliary anti-skid block control wheel (1) is coaxially and integrally connected with a bearing sleeve (19), the left side of the right holding block (15) is integrally provided with a circular flange (2), and the bearing sleeve (19) is in rotating tight fit connection with the outer ring of the circular flange (2) through a first bearing (20);
the axial center of the auxiliary anti-skid block control wheel (1) is coaxially provided with an inner hexagonal through hole (3) in a through manner, the auxiliary anti-skid block control wheel also comprises a transmission shaft (23) which penetrates through the inner hexagonal through hole (3) in a sliding manner and is of a regular hexagon in cross section, and the torque of the auxiliary anti-skid block control wheel (1) can be transmitted to the transmission shaft (23) through the inner hexagonal through hole (3); threaded holes (26) are formed in the left holding block (24) in a left-right through mode, threaded push rods (25) are connected to the threaded holes (26) in an internal thread mode, and the threaded push rods (25) are connected with the left end of the transmission shaft (23) in an integrated mode through a connecting shaft (30);
a hydraulic column cavity (16) is arranged in the right holding block (15), the hydraulic column cavity (16) and the transmission shaft (23) are coaxially arranged, a hydraulic piston (17) is arranged in the hydraulic column cavity (16) in a sliding manner, an ejector rod penetrating hole (5) is arranged in the hollow manner on the left side of the hydraulic column cavity (16), the hydraulic lifting rod further comprises a hydraulic lifting rod (18) penetrating through the ejector rod penetrating hole (5), and the right end of the hydraulic lifting rod (18) is fixedly connected with the hydraulic piston (17) in a coaxial manner; a bearing blind hole is coaxially arranged at the right end of the transmission shaft (23), the left end of the hydraulic ejector rod (18) coaxially extends into the bearing blind hole, and a spherical top (21) at the left end of the hydraulic ejector rod (18) is pressed against the hole bottom of the bearing blind hole; the outer wall of the left end of the hydraulic ejector rod (18) is in rotating tight fit connection with the inner wall of the bearing blind hole through a plurality of second bearings (4);
a groove (10) is formed in the middle of the second clasping surface (9), an auxiliary anti-skid block (6) is arranged in the groove (10), an auxiliary anti-skid surface (6.1) is arranged on the outer side surface of the auxiliary anti-skid block (6), and the auxiliary anti-skid surface (6.1) is level with the second clasping surface (9); a plurality of piston channels (7) are vertically arranged at the bottom of the groove (10), a second hydraulic piston (12) is movably arranged in each piston channel (7), and each second hydraulic piston (12) is fixedly connected with one end, far away from the auxiliary anti-skid surface (6.1), of the auxiliary anti-skid block (6) through a hydraulic push rod (11); the hydraulic push rod (11) can push the auxiliary anti-skid block (6) outwards in the direction away from the central motor (37) under the action of hydraulic pressure, so that the auxiliary anti-skid surface (6.1) of the auxiliary anti-skid block (6) tightly presses against the inner wall (34) of the lifted cylinder (33);
the inside of right side hug tight piece (15) is provided with transition hydraulic pressure chamber (13), and the one end that supplementary non slipping spur (6) was kept away from in a plurality of piston passageways (7) all communicates transition hydraulic pressure chamber (13), transition hydraulic pressure chamber (13) with hydraulic column chamber (16) are through leading liquid passageway (14) intercommunication.
2. The internal clasping type antiskid lifting appliance of the engineering construction crane according to claim 1, which is characterized in that: the elastic anti-skid tyre (1.1) is made of elastic rubber, and the auxiliary anti-skid surface (6.1), the first anti-skid strips (28) and the second anti-skid strips (29) of the auxiliary anti-skid blocks (6) are made of anti-skid compact rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010330092.5A CN111392581B (en) | 2020-04-24 | 2020-04-24 | Internal holding type anti-skid lifting appliance of engineering construction crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010330092.5A CN111392581B (en) | 2020-04-24 | 2020-04-24 | Internal holding type anti-skid lifting appliance of engineering construction crane |
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| CN111392581A CN111392581A (en) | 2020-07-10 |
| CN111392581B true CN111392581B (en) | 2022-01-28 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN209618683U (en) * | 2019-03-21 | 2019-11-12 | 江苏金坛绿能新能源科技有限公司 | A kind of stator jig |
| CN210029758U (en) * | 2019-05-29 | 2020-02-07 | 湖北三江航天万峰科技发展有限公司 | Internal-supporting type lifting appliance for graphite crucible |
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Effective date of registration: 20220114 Address after: No. 11, Lane 1528, Youyi Road, Baoshan District, Shanghai 201900 Applicant after: Shanghai Tianye Construction Group Co.,Ltd. Address before: 215000 66-1602, Xingang Tiancheng, Lianyang Road, Wujiang District, Suzhou City, Jiangsu Province Applicant before: Tang Yun |