CN112938741A - Pipe lifting appliance, pipe lifting equipment, pipeline operation vehicle and using method - Google Patents
Pipe lifting appliance, pipe lifting equipment, pipeline operation vehicle and using method Download PDFInfo
- Publication number
- CN112938741A CN112938741A CN202110125575.6A CN202110125575A CN112938741A CN 112938741 A CN112938741 A CN 112938741A CN 202110125575 A CN202110125575 A CN 202110125575A CN 112938741 A CN112938741 A CN 112938741A
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- Prior art keywords
- pipe
- oil cylinder
- lifting
- movable pulley
- 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
- 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
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
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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
- B66C23/04—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 the effective length of which is variable in operation, e.g. longitudinally displaceable, extensible
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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
- B66C23/42—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 with jibs of adjustable configuration, e.g. foldable
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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
- B66C23/82—Luffing gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D3/00—Portable or mobile lifting or hauling appliances
- B66D3/04—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage
- B66D3/06—Pulley blocks or like devices in which force is applied to a rope, cable, or chain which passes over one or more pulleys, e.g. to obtain mechanical advantage with more than one pulley
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention discloses a pipe hanger, which comprises: the hanging bracket is provided with a connecting mechanism, and the connecting mechanism is used for connecting with a crane; the rotating lock frame is arranged below the hanging frame and comprises a support, a lever and a scraper; one end of the rotary locking oil cylinder is connected with the hanging bracket, and the other end of the rotary locking oil cylinder is connected with the rotary locking bracket; the twist lock oil cylinder is arranged to push the support to swing transversely along the hanging bracket; the aligning frame is provided with an aligning pushing claw which is used for pushing the end part of the pipe hung on the scraping plate to align the end part of the pipe; and one end of the aligning oil cylinder is connected with the hanging bracket, the other end of the aligning oil cylinder is connected with the aligning frame, and the aligning oil cylinder is used for pushing the aligning frame to move longitudinally along the hanging bracket. The pipe lifting appliance provided by the invention can lift and take the rows of pipes at one time without manual operation. The invention also discloses pipe hoisting equipment. The invention also discloses a using method of the pipe crane equipment. The invention also discloses a pipeline operating vehicle.
Description
Technical Field
The invention relates to a pipe lifting appliance, pipe lifting equipment, a pipeline operation vehicle and a using method.
Background
The pipeline working vehicle is a vehicle which can store a certain amount of assembly type pipes and can realize operations such as distribution, recovery, laying and the like of the assembly type pipelines. The assembly type pipeline can be applied to long-distance emergency conveying of liquids such as oil, water and the like, is large in conveying amount, flexible and convenient to lay and recover, and can be suitable for outdoor temporary liquid conveying. The fabricated pipelines are typically placed in rows in the pipe box of the pipeline working vehicle, and the fabricated pipelines need to be hoisted from the pipeline working vehicle to the ground or hoisted from the ground into the pipe box by using auxiliary devices.
CN205953325U discloses a cast tube hoisting device. The device is provided with a hanging bracket connected with an engineering vehicle mechanical arm, the hanging bracket is connected with a connecting seat in the middle of a main beam, a rotating mechanism for driving the connecting seat and the hanging bracket to rotate relatively is arranged on the hanging bracket, sliding sleeves and hydraulic cylinders are arranged at two ends of the main beam, the hydraulic cylinders drive the sliding sleeves to slide transversely along the main beam, and a lifting hook is fixed below each sliding sleeve. The device needs manual operation, has increased the input of manpower.
CN204873473U discloses an axle tube hanger. The lifting appliance comprises lifting lugs, a pull arm, a first lifting rod, an adjusting ring, a second lifting rod and a lifting box. The lifting lug, the pull arm and the first suspender are welded together to form a hanger assembly, the adjusting ring, the second suspender and the lifting box are welded together to form a lifting box assembly, and the lifting box assembly is sleeved on the first suspender through the adjusting ring. The spreader cannot horizontally hoist the pipe.
CN105800450A discloses a scattered pipe lifting device. The device comprises a hanging amount, a steel wire rope and a scattered pipe clamping device for clamping and fixing scattered pipe parts, wherein the scattered pipe clamping device is hung below a hanging beam through the steel wire rope. When in use, the scattered pipe parts are manually placed on the clamping device in sequence.
CN208916657U discloses a hose crane. The hose crane support column is fixedly connected with the support table through a connecting column, the first hose crane comprises a first rotating mechanism, a first front arm and a first hook, the second hose crane comprises a second rotating mechanism, a second front arm and a second hook, the lower end of the second rotating mechanism is connected with the support table, the upper end of the hose crane support column is connected with the first rotating mechanism, the support table is connected with the first rotating mechanism through a supporting rod, motors are arranged in the first rotating mechanism and the second rotating mechanism respectively, the first hose crane and the second hose crane are identical in structure, one end of the first front arm is connected with the first rotating mechanism, the other end of the first front arm is provided with a second pulley, the first hook is arranged below the second pulley, the first front arm is provided with a first pulley, and a hydraulic cylinder is arranged between the first rotating mechanism and the first front arm. CN201619969U discloses a hose crane with a novel driving mechanism. The device comprises a hose crane strut, an electric control hydraulic station, a luffing mechanism and a front arm, wherein the hose crane strut is arranged on a wharf base bank, the electric control hydraulic station is arranged at the lower end of the hose crane strut, and the upper end of the hose crane strut is respectively connected with the luffing mechanism and a slewing mechanism; the connecting shaft at the top end of the hose crane support is connected with the front arm, and the steel cable is connected with the hook through the steel cable pulley and the arm end steel cable pulley block; the tail end of the front arm is provided with a steel cable pulley, and the front end of the front arm is connected with an arm end steel cable pulley block. The hose crane cannot move in the horizontal direction.
Disclosure of Invention
In view of the above, in one aspect, the present invention provides a pipe lifting tool which can lift a row of pipes at a time without manual operation. In another aspect, the present invention provides a pipe racking apparatus capable of racking a row of pipes from a pipeline work vehicle to the ground, or vice versa, without manual operation. In yet another aspect, the present invention provides a method of using a pipe crane apparatus. In yet another aspect, the present invention provides a pipeline work vehicle.
The technical problem is solved by the following technical scheme.
In one aspect, the present invention provides a pipe hanger, comprising:
the hanging bracket is provided with a connecting mechanism, and the connecting mechanism is used for connecting with a crane;
the rotating lock frame is arranged below the hanging frame and comprises a support, a lever and a scraper; the lever is provided with a first end part and a second end part, rolling grooves transversely arranged along the hanging bracket are formed in the two ends of the support, the lever is connected with the rolling grooves through rolling shafts, the first end part of the lever penetrates through the rolling grooves, and the second end part of the lever is connected with the hanging bracket in a pin shaft mode; the scraper is rotationally connected with the first end part of the lever and is used for hoisting a pipe;
one end of the rotary locking oil cylinder is connected with the hanging bracket, and the other end of the rotary locking oil cylinder is connected with the bracket; the twist lock oil cylinder is arranged to push the support to swing transversely along the hanging bracket;
the aligning frame is provided with an aligning pushing claw which is used for pushing the end part of the pipe hung on the scraping plate to align the end part of the pipe;
and one end of the aligning oil cylinder is connected with the hanging bracket, the other end of the aligning oil cylinder is connected with the aligning frame, and the aligning oil cylinder is used for pushing the aligning frame to move longitudinally along the hanging bracket.
According to the pipe sling, the connecting mechanism preferably comprises a lifting oil cylinder and a movable pulley block, a movable pulley in the movable pulley block is connected with the lifting oil cylinder, the lifting oil cylinder is arranged to pull the movable pulley to move longitudinally along the hanging bracket, and the movable pulley block is used for being connected with a crane.
According to the pipe spreader of the present invention, preferably, the radial directions of the movable pulleys and the static pulleys in the movable pulley group are both perpendicular to the plane of the hanger.
According to the pipe sling of the invention, preferably, the connecting mechanism comprises a lifting oil cylinder, a movable pulley, a first fixed pulley, a second fixed pulley, a third fixed pulley, a fourth fixed pulley, a first flexible cable and a second flexible cable;
the upper surface of the hanger is longitudinally and sequentially provided with a third fixed pulley, a second fixed pulley, a first fixed pulley, a movable pulley, a lifting oil cylinder and a fourth fixed pulley;
the lifting oil cylinder is connected with the movable pulley;
the first flexible cable is fixed on the movable pulley, sequentially bypasses the first fixed pulley, the movable pulley and the third fixed pulley, and is led out upwards from the third fixed pulley;
the second flexible cable is fixed on the movable pulley, sequentially bypasses the first fixed pulley, the movable pulley, the second fixed pulley and the fourth fixed pulley, and is upwards led out from the fourth fixed pulley.
According to the pipe spreader of the present invention, preferably, the alignment pusher dog is provided at an end of the alignment rack.
In another aspect, the invention provides a pipe crane device, which comprises the pipe hanger and two groups of cranes, wherein each group of cranes comprises a boom seat and a boom;
the davit includes:
the cross beam is connected with the suspension arm base in a sliding manner;
the fixed end of the hydraulic oil cylinder is hinged with the cross beam;
the middle part of the rotating arm is hinged with the movable end of the hydraulic oil cylinder, one end of the rotating arm is hinged with one end of the cross beam, which is far away from the hydraulic oil cylinder, and the other end of the rotating arm is connected with the pipe lifting appliance; the hydraulic oil cylinder is used for pushing the rotating arm to rotate around the joint of the rotating arm and the suspension arm seat;
and the push rod comprises a first part and a second part, the first part and the second part are hinged, one end of the first part, far away from the second part, is hinged with the rotating arm, and one end of the second part, far away from the first part, is hinged with the lifting arm seat.
According to the pipe crane equipment, the pipe crane further comprises a fixed head, the fixed head is hinged with one end of the rotating arm, and the fixed head is used for being connected with a pipe hanger.
According to the pipe crane equipment provided by the invention, preferably, the boom seat is provided with a slide rail, and the cross beam is connected with the boom seat in a sliding manner through the slide rail; the hinge joint adopts a pin shaft connection mode.
In another aspect, the present invention provides a method for using a pipe crane apparatus, which is characterized by comprising the following steps:
the rotary locking oil cylinder push-pull bracket is enabled to move along the transverse direction of the hanger, so that the lever is driven to rotate, and the scraper mounted on the lever rotates along with the lever; when the thickness direction of the scraper is vertical to the radial direction of the pipe, the scraper is inserted into a gap of the adjacent pipe, and then the scraper is rotated by 90 degrees to enable the scraper to hook the pipe, so that the pipe is grabbed;
the alignment oil cylinder pushes the alignment frame to move longitudinally along the support, when the movable end of the alignment oil cylinder extends, the alignment frame moves to the edge, and in the retraction process of the alignment oil cylinder, the alignment push claw arranged on the alignment frame pushes the end part of the pipe hung on the scraper blade to align the end part;
the lifting oil cylinder pushes and pulls the movable pulley to move along the longitudinal direction of the hanger, so that the first flexible cable and the second flexible cable are driven to stretch and retract; when the movable pulley moves towards the lifting oil cylinder, the leading-out end of the first flexible cable led out upwards from the third fixed pulley retracts, the leading-out end of the second flexible cable led out upwards from the fourth fixed pulley retracts, and the retracting distance is the same as the retracting distance of the first flexible cable; when the movable pulley moves away from the lifting oil cylinder, the first flexible cable and the second flexible cable fall under the action of gravity, and the falling distances of the first flexible cable and the second flexible cable are equal; this causes the pipe sling to move in a vertical direction;
the movable end of the hydraulic oil cylinder extends out, so that the rotating arm is pushed to rotate around the joint of the rotating arm and the lifting arm seat, force is applied to the lifting arm seat through the push rod, the lifting arm seat reacts the force to the cross beam through the push rod and the rotating arm, the cross beam slides outwards along the lifting arm seat, and the hydraulic oil cylinder and the rotating arm are driven to slide outwards together; this causes the pipe sling to move in a horizontal direction.
In another aspect, the invention provides a pipeline working vehicle, which comprises the pipe hoisting equipment, a bottom plate, a pipe box and a hydraulic valve group;
the pipe crane equipment comprises a base plate, a pipe box, a hydraulic valve group, a pipe lifting device and a hydraulic power control device, wherein the base plate is used for supporting the pipe lifting device, the pipe box is arranged between the two base plates, and the hydraulic valve group is arranged on the base plate and used for controlling the hydraulic power of the pipe lifting device.
The pipe lifting appliance provided by the invention is provided with the rotary locking frame and the aligning frame, so that rows of pipes can be lifted at one time in an aligned mode, and the pipes can be ensured to be tidy and accurate in position. According to the preferred technical scheme, the pipe lifting appliance is provided with the lifting oil cylinder and the movable pulley block, and the movable pulley block is pulled by the lifting oil cylinder to move longitudinally along the lifting frame, so that the height of the pipe lifting appliance is changed. The crane of the present invention is capable of producing lateral displacements of the pipe spreader to move pipes on the pipe spreader out of or into the pipeline work vehicle.
Drawings
Fig. 1 is a side view of a pipe spreader of the present invention.
Fig. 2 is a plan view of a partial structure of a pipe hanger according to the present invention.
Fig. 3 is a schematic view illustrating a connection mode of a first wire of a pipe hanger according to the present invention.
Fig. 4 is a schematic view illustrating a connection mode of a second wire of the pipe hanger according to the present invention.
Figure 5 is a side view of a drop tube apparatus of the present invention.
FIG. 6 is a top view of a drop tube apparatus of the present invention.
Fig. 7 is a partial structural schematic view of the crane of the present invention.
Fig. 8 is an expanded view of a partial structure of the crane of the present invention.
Fig. 9 is a side view of a pipeline operating vehicle of the present invention.
Fig. 10 is a rear view of a pipeline operating vehicle of the present invention.
The reference numerals are detailed below:
100-pipe hangers; 1-a hanger; 2-a connection mechanism; 21-lifting the oil cylinder; 22-a movable pulley; 23-a first stationary sheave; 24-a second stationary sheave; 25-a third stationary sheave; 26-a fourth stationary sheave; 27-a first flexible cord; 28-a second flexible cable; 3-rotating the lock frame; 31-a scaffold; 32-lever; 33-a scraper; 4-rotating and locking the oil cylinder; 5-an alignment frame; 51-an alignment pawl; 6-aligning the oil cylinder; 200-a crane; 7-a boom; 71-beam, 72-hydraulic cylinder, 73-rotating arm, 74-push rod, 75-fixed head; 8-a boom base; 9-a bottom plate; 10-a tube box; 11-hydraulic valve group.
Detailed Description
The present invention will be further described with reference to the following specific examples, but the scope of the present invention is not limited thereto.
The pipeline operating vehicle of the invention is a vehicle which can store a certain amount of pipes and can realize the operations of laying, recovering, laying and the like of the pipes.
The bottom plate of the invention is a plate-shaped structure additionally arranged on the chassis of the second type of automobile.
< pipe hanger >
The pipe lifting appliance comprises a lifting frame, a connecting mechanism, a rotary locking frame, a rotary locking oil cylinder, an alignment frame and an alignment oil cylinder.
The hanger disclosed by the invention is a bearing support of a pipe hanger. The upper surface of gallows is provided with coupling mechanism, and coupling mechanism is used for linking to each other with the loop wheel machine. The connecting mechanism can comprise a lifting oil cylinder and a movable pulley block. And a movable pulley in the movable pulley block is connected with the lifting oil cylinder. The lifting oil cylinder is arranged to pull the movable pulley to move longitudinally along the hanging bracket. The movable pulley block is used for being connected with the crane. The radial directions of the movable pulleys and the static pulleys in the movable pulley block are both vertical to the plane where the hanging bracket is located.
According to one embodiment of the invention, the connecting mechanism comprises a lifting cylinder, a movable pulley, a first fixed pulley, a second fixed pulley, a third fixed pulley, a fourth fixed pulley, a first flexible cable and a second flexible cable. The upper surface of the hanger is longitudinally provided with a third fixed pulley, a second fixed pulley, a first fixed pulley, a movable pulley, a lifting oil cylinder and a fourth fixed pulley in sequence. The lifting oil cylinder is connected with the movable pulley. The first flexible cable is fixed on the movable pulley, sequentially passes through the first fixed pulley, the movable pulley and the third fixed pulley, and is led out upwards from the third fixed pulley. The lead-out part is a lead-out end. The second flexible cable is fixed on the movable pulley, sequentially passes around the first fixed pulley, the movable pulley, the second fixed pulley and the fourth fixed pulley, and is upwards led out from the fourth fixed pulley. The lead-out part is a lead-out end. The third and fourth stationary pulleys may be disposed at both ends of the hanger, respectively. The first flexible cable may be a steel wire rope. The second flexible cable may be a steel wire rope.
The rotary lock frame is arranged below the hanging frame. The rotary lock frame comprises a bracket, a lever and a scraper. The support is a movable support. The two ends of the bracket are provided with rolling grooves. The rolling groove is arranged along the transverse direction of the hanger. The lever has a first end and a second end. The lever is connected with the roller groove through the roller. The first end of the lever passes through the roller slot. The second end of the lever is connected with the hanger in a pin shaft mode. The squeegee is pivotally coupled to the first end of the lever. The scraper is used for hoisting the pipe. The scraper is in a sheet shape. The scraper may have two ends in the form of flat shovels. The end part can be inserted into the bottom of the pipe, and two adjacent scrapers can hook the pipe.
The twist-lock oil cylinder is arranged to push the support to swing transversely along the hanging bracket. One end of the twist lock oil cylinder is connected with the hanger, and the other end of the twist lock oil cylinder is connected with the bracket.
The alignment rack of the present invention is a movable rack. The aligning frame is provided with an aligning pusher dog. The alignment pawl may be disposed at an end of the alignment rack. The aligning pusher dog is used to push the end of the pipe suspended from the scraper. The number of the aligning push grabs is determined according to the number of the hung pipes. The alignment rack may be slidably connected to the hanger, for example by a slide rail.
The alignment oil cylinder is arranged to push the alignment frame to move longitudinally along the hanging bracket. One end of the alignment oil cylinder is connected with the hanging bracket, and the other end of the alignment oil cylinder is connected with the alignment bracket.
< pipe hoist apparatus >
The pipe crane equipment comprises the pipe crane and a crane. The cranes may comprise two sets, each set of cranes may comprise a boom block and a boom. The suspension arm can comprise a cross beam, a hydraulic oil cylinder, a rotating arm and a push rod. In some embodiments, the boom may further comprise a fixed head.
The beam is connected with the suspension arm base in a sliding way. In some embodiments, the boom base is provided with a slide rail. The beam is connected with the suspension arm base in a sliding way through a sliding rail.
The hydraulic oil cylinder is arranged to push the rotating arm to rotate around the joint of the rotating arm and the lifting arm seat. The movable end of the hydraulic oil cylinder is hinged with the beam. In some embodiments, the movable end of the hydraulic cylinder is connected with the cross beam in a pin shaft mode. The fixed end of the hydraulic oil cylinder is hinged with the middle part of the rotating arm. In some embodiments, the fixed end of the hydraulic oil cylinder is connected with the middle part of the rotating arm in a pin mode.
The rotating arm is arranged to rotate around the joint of the rotating arm and the hanging arm seat. One end of the rotating arm is hinged with one end of the cross beam far away from the hydraulic oil cylinder. In some embodiments, one end of the swivel arm is pivotally connected to an end of the beam remote from the hydraulic ram. The other end of the rotating arm is connected with a pipe hanger. In some embodiments, the other end of the swivel arm is connected to the first or second flexible cable. The middle part of the rotating arm is hinged with the hydraulic oil cylinder. In some embodiments, the middle portion of the swivel arm is pivotally connected to the hydraulic ram.
The push rod includes a first portion and a second portion. The first portion and the second portion are hingedly connected. In some embodiments, the first portion and the second portion are connected by a pin. The end of the first part far away from the second part is hinged with the rotating arm. In some embodiments, the end of the first portion remote from the second portion is pivotally connected to the pivot arm. One end of the second part far away from the first part is hinged with the lifting arm seat. In some embodiments, an end of the second portion distal from the first portion is pivotally connected to the boom base.
The fixed head is used for being connected with a pipe hanger. In some embodiments, the fixation head is configured to couple to the first wire or the second wire. The fixed head is hinged with one end of the rotating arm. In some embodiments, the fixed head is connected to one end of the rotating arm in a pin manner.
< method of using pipe hoist apparatus >
The use method of the pipe crane equipment comprises the following steps: the rotary locking oil cylinder push-pull bracket is enabled to move along the transverse direction of the hanger, so that the lever is driven to rotate, and the scraper mounted on the lever rotates along with the lever; when the thickness direction of the scraper is vertical to the radial direction of the pipe, the scraper is inserted into a gap of the adjacent pipe, and then the scraper is rotated by 90 degrees to enable the scraper to hook the pipe, so that the pipe is grabbed;
the alignment oil cylinder pushes the alignment frame to move longitudinally along the hanging bracket, when the movable end of the alignment oil cylinder extends, the alignment frame moves to the edge, and in the retraction process of the alignment oil cylinder, the alignment push claw arranged on the alignment frame pushes the end part of the pipe hung on the scraper blade to align the end part;
the lifting oil cylinder pushes and pulls the movable pulley to move along the longitudinal direction of the hanger, so that the first flexible cable and the second flexible cable are driven to stretch and retract; when the movable pulley moves towards the lifting oil cylinder, the leading-out end of the first flexible cable led out upwards from the third fixed pulley retracts, the leading-out end of the second flexible cable led out upwards from the fourth fixed pulley retracts, and the retracting distance is the same as the retracting distance of the first flexible cable; when the movable pulley moves away from the lifting oil cylinder, the first flexible cable and the second flexible cable fall under the action of gravity, and the falling distances of the first flexible cable and the second flexible cable are equal; this causes the pipe sling to move in a vertical direction;
the movable end of the hydraulic oil cylinder extends out, so that the rotating arm is pushed to rotate around the joint of the rotating arm and the lifting arm seat, force is applied to the lifting arm seat through the push rod, the lifting arm seat reacts the force to the cross beam through the push rod and the rotating arm, the cross beam slides outwards along the lifting arm seat, the hydraulic oil cylinder and the rotating arm are driven to slide outwards together, and the pipe lifting appliance moves in the horizontal direction.
< pipeline working vehicle >
The pipeline operating vehicle comprises the pipe crane equipment, a bottom plate, a pipe box and a hydraulic valve bank. The pipe crane equipment is arranged on the bottom plate. In some embodiments, the boom base of the pipe hoist apparatus is disposed on the base plate. The pipe box is arranged between the two boom seats. The tube box may be provided with compartments to enable the tubes to be placed in rows in the tube box. The hydraulic valve group is arranged on the bottom plate and used for controlling hydraulic power of the pipe crane equipment.
Example 1
As shown in fig. 1 to 4, the pipe hanger 100 of the present embodiment includes a hanger 1, a coupling mechanism 2, a twist lock frame 3, a twist lock cylinder 4, an alignment frame 5, and an alignment cylinder 6. The connecting mechanism 2 comprises a lifting oil cylinder 21, a movable pulley 22, a first fixed pulley 23, a second fixed pulley 24, a third fixed pulley 25, a fourth fixed pulley 26, a first flexible cable 27 and a second flexible cable 28.
The upper surface of the hanger 1 is provided with a third fixed pulley 25, a second fixed pulley 24, a first fixed pulley 23, a movable pulley 22, a lifting oil cylinder 21 and a fourth fixed pulley 26 in sequence along the longitudinal direction of the hanger 1. Third and fourth stationary sheaves 25 and 26 are provided at both ends of the hanger 1, respectively. The radial directions of the movable pulley 22, the first fixed pulley 23, the second fixed pulley 24, the third fixed pulley 25 and the fourth fixed pulley 26 are all vertical to the plane of the hanger 1. The lift cylinder 21 is connected to the movable sheave 22. The lift cylinder 21 pulls the movable sheave 22 to move longitudinally along the hanger 1. The first flexible cable 27 is fixed to the movable pulley 22, passes around the first fixed pulley 23, the movable pulley 22, and the third fixed pulley 25 in this order, and is led out upward from the third fixed pulley 25. The second wire 28 is fixed to the movable pulley 22, passes around the first fixed pulley 23, the movable pulley 22, the second fixed pulley 24, and the fourth fixed pulley 26 in this order, and is led out upward from the fourth fixed pulley 26. In this embodiment, the first flexible cable 27 and the second flexible cable 28 are both steel cables.
As shown in fig. 1-2, the twist-lock frame 3 is disposed below the hanger 1, and includes a bracket 31, a lever 32, and a scraper 33. The lever 32 has a first end and a second end. The two ends of the bracket 31 are provided with rolling grooves which are transversely arranged along the hanger 1. The first end of the lever 32 is connected to the roller grooves of both ends of the bracket 31 by a roller. The number of levers 32 is determined by the number of rows of pipes to be lifted. The second end of the lever 32 is connected to the hanger 1 by means of a pin. A first end of the lever 32 passes through the roller slot and is rotatably connected to the scraper 33. The scraper 33 is in the form of a sheet and has two flat shovel-shaped ends.
One end of the twist lock oil cylinder 4 is connected with the hanger 1, the other end of the twist lock oil cylinder is connected with the bracket 31, and the twist lock oil cylinder 4 pushes the bracket 31 to swing transversely along the hanger 1.
The end of the aligning frame 5 is provided with an aligning pusher 51, and the aligning pusher 51 pushes the end of the pipe hung on the scraper 33 to align the end of the pipe.
One end of the alignment oil cylinder 6 is connected with the hanger 1, and the other end is connected with the alignment frame 5. The alignment oil cylinder 6 pushes the alignment rack to move longitudinally along the hanger 1.
The working principle is described as follows:
the bracket 31 moves along the transverse direction of the hanger 1 under the push and pull of the twist lock cylinder 4, so that the lever 32 is driven to rotate, and the scraper 33 arranged on the lever 32 also rotates along with the lever. When the thickness direction of the scraper 33 is vertical to the radial direction of the pipe, the scraper 33 is inserted into the gap of the adjacent pipe, then the scraper 33 rotates 90 degrees, the two ends of the scraper 33 with flat shovel shapes are inserted into the bottom of the pipe, and the adjacent two scrapers 33 hook the pipe to complete the grabbing of the pipe.
The alignment carriage 5 is moved in the longitudinal direction of the carriage 31 by the alignment cylinder 6. When the movable end of the alignment cylinder 6 extends, the alignment frame 5 moves to the edge, and during the retraction of the alignment cylinder 6, the alignment push claw 51 provided at the end of the alignment frame 5 pushes the end of the pipe hung from the scraper 33 to align the end thereof, thereby ensuring reliable placement in a predetermined position of the vehicle.
The movable pulley 22 moves along the longitudinal direction of the hanger 1 under the pushing and pulling action of the lifting cylinder 21, thereby driving the first flexible cable 27 and the second flexible cable 28 to extend and retract. According to the movable pulley block principle, when the movable pulley 22 moves towards the lift cylinder 21, the retraction length of the leading end of the first flexible cable 27 led out upwards from the third fixed pulley 25 is 3 times of the moving distance of the movable pulley 22, and the retraction length of the leading end of the second flexible cable 28 led out upwards from the fourth fixed pulley 26 is also 3 times of the moving distance of the movable pulley 22. As the lift cylinder 21 shortens, the pipe hanger 100 is lifted continuously. Similarly, when the movable end of the lift cylinder 21 extends, the first and second flexible cables 27 and 28 automatically fall under the action of gravity by a distance 3 times the length of the movable end of the lift cylinder 21.
Example 2
As shown in fig. 5 to 6, the pipe hanger apparatus of the present embodiment includes the pipe hanger 100 of embodiment 1 and two sets of cranes 200. As shown in fig. 7-8, each set of cranes comprises a boom base 8 and a boom 7, the boom 7 comprising a beam 71, a hydraulic ram 72, a boom 73, a push rod 74 and a fixed head 75.
The boom base 8 is provided with a slide rail.
The beam 71 is connected with the boom base 8 in a sliding way through a slide rail.
The movable end of hydraulic cylinder 72 is connected with one end of beam 71 by pin shaft.
The middle part of the rotating arm 73 is connected with the fixed end of the hydraulic oil cylinder 72 in a pin shaft mode. One end of the rotating arm 73 is connected with one end of the cross beam 71 far away from the hydraulic oil cylinder 72 in a pin shaft mode. Hydraulic cylinder 72 pushes rotating arm 73 to rotate about a pin connected to beam 71. The end of the pivot arm 73 remote from the cross beam 71 is pivotally connected to a fixed head 75.
The push rod 74 includes a first portion and a second portion. The first and second parts are connected by means of a pin. The end of the first part remote from the second part is pivotally connected to the pivot arm 73. The end of the second part remote from the first part is connected with the boom base 8 in a pivot way.
The fixed heads 75 of the two sets of cranes 200 are connected to the leading end of the first flexible cable 27 leading upward from the third fixed sheave 25 and the leading end of the second flexible cable 28 leading upward from the fourth fixed sheave 26, respectively.
The working principle of the crane 200 is as follows:
under the hydraulic action of the hydraulic oil cylinder 72, when the movable end extends out, the rotating arm 73 is pushed to rotate around the pin shaft connected with the cross beam 71, so that force is applied to the lifting arm seat 8 through the push rod 74, the lifting arm seat 8 reacts the force to the cross beam 71 through the push rod 74 and the rotating arm 73, the cross beam 71 moves outwards along the slide rail on the lifting arm seat 8, the hydraulic oil cylinder 72, the rotating arm 73 and the fixed head 75 are driven to move outwards together, and the pipe hanger 100 lifted on the fixed head 75 can be completely moved out of the vehicle.
Example 3
As shown in fig. 9 to 10, the pipeline working vehicle of the present invention comprises a pipe hoist apparatus of embodiment 2, a floor 9, a pipe box 10, and a hydraulic valve block 11;
the boom seat 8 of the pipe hoisting equipment is arranged on the bottom plate 9. The tube box 10 is arranged between the two boom seats 8. The tube box 10 is provided with a hatch so that the tubes can be placed in rows in the tube box 10. The hydraulic valve group 11 is arranged on the bottom plate and controls hydraulic power of the pipe crane equipment.
Example 4
The use method of the pipe crane equipment of embodiment 2 includes the following steps:
the rotary locking oil cylinder 4 pushes and pulls the bracket 31 to move along the transverse direction of the hanger 1, so as to drive the lever 32 to rotate, and the scraper 33 arranged on the lever 32 rotates along with the lever 32; when the thickness direction of the scraper 33 is perpendicular to the radial direction of the pipe, the scraper 33 is inserted into the gap of the adjacent pipe, and then the scraper 33 is rotated by 90 degrees, so that the scraper 33 hooks the pipe, and the grabbing of the pipe is completed.
The alignment oil cylinder 6 pushes the alignment frame 5 to move along the longitudinal direction of the hanger 1, when the movable end of the alignment oil cylinder 6 extends, the alignment frame 5 moves to the edge, and during the retraction of the alignment oil cylinder 6, the alignment push claw 51 arranged on the alignment frame 5 pushes the end of the pipe hung on the scraper 33 to align the end.
The lifting oil cylinder 21 pushes and pulls the movable pulley 22 to move along the longitudinal direction of the hanger 1, so as to drive the first flexible cable 27 and the second flexible cable 28 to stretch and contract; when the movable pulley 22 moves towards the lifting cylinder 21, the retracting distance of the first flexible cable 27 from the upward leading end of the third fixed pulley 25 is 3 times of the moving distance of the movable pulley 22, and the retracting distance of the second flexible cable 28 from the upward leading end of the fourth fixed pulley 26 is 3 times of the moving distance of the movable pulley 22; when the movable sheave 22 moves away from the cylinder of the lifting oil 21, the first and second wires 27 and 28 fall by gravity, and the first and second wires fall by a distance 3 times the moving distance of the movable sheave 22. This causes the pipe sling 100 to move in a vertical direction.
The movable end of the hydraulic cylinder 72 is extended to push the rotating arm 73 to rotate around the joint of the rotating arm 73 and the boom base 8, a force is applied to the boom base 8 through the push rod 74, the boom base 8 reacts the force to the cross beam 71 through the push rod 74 and the rotating arm 73, the cross beam 71 slides outwards along the boom base 8, the hydraulic cylinder 72 and the rotating arm 73 are driven to slide outwards together, and the pipe sling 100 is moved in the horizontal direction.
The present invention is not limited to the above-described embodiments, and any variations, modifications, and substitutions which may occur to those skilled in the art may be made without departing from the spirit of the invention.
Claims (10)
1. A pipe hanger, comprising:
the hanging bracket is provided with a connecting mechanism, and the connecting mechanism is used for connecting with a crane;
the rotating lock frame is arranged below the hanging frame and comprises a support, a lever and a scraper; the lever is provided with a first end part and a second end part, rolling grooves transversely arranged along the hanging bracket are formed in the two ends of the support, the lever is connected with the rolling grooves through rolling shafts, the first end part of the lever penetrates through the rolling grooves, and the second end part of the lever is connected with the hanging bracket in a pin shaft mode; the scraper is rotationally connected with the first end part of the lever and is used for hoisting a pipe;
one end of the rotary locking oil cylinder is connected with the hanging bracket, and the other end of the rotary locking oil cylinder is connected with the bracket; the twist lock oil cylinder is arranged to push the support to swing transversely along the hanging bracket;
the aligning frame is provided with an aligning pushing claw which is used for pushing the end part of the pipe hung on the scraping plate to align the end part of the pipe;
and one end of the aligning oil cylinder is connected with the hanging bracket, the other end of the aligning oil cylinder is connected with the aligning frame, and the aligning oil cylinder is used for pushing the aligning frame to move longitudinally along the hanging bracket.
2. The pipe spreader of claim 1, wherein the connection mechanism comprises a lift cylinder and a movable pulley block, a movable pulley of the movable pulley block being connected to the lift cylinder, the lift cylinder being configured to pull the movable pulley block to move longitudinally along the spreader, the movable pulley block being adapted to be connected to a crane.
3. The pipe spreader of claim 2, wherein the radial directions of the movable pulleys and the static pulleys in the movable pulley group are perpendicular to the plane of the spreader.
4. The pipe spreader of claim 3, wherein the connection mechanism comprises a lift cylinder, a traveling block, a first stationary block, a second stationary block, a third stationary block, a fourth stationary block, a first wire, and a second wire;
the upper surface of the hanger is longitudinally and sequentially provided with a third fixed pulley, a second fixed pulley, a first fixed pulley, a movable pulley, a lifting oil cylinder and a fourth fixed pulley;
the lifting oil cylinder is connected with the movable pulley;
the first flexible cable is fixed on the movable pulley, sequentially bypasses the first fixed pulley, the movable pulley and the third fixed pulley, and is led out upwards from the third fixed pulley;
the second flexible cable is fixed on the movable pulley, sequentially bypasses the first fixed pulley, the movable pulley, the second fixed pulley and the fourth fixed pulley, and is upwards led out from the fourth fixed pulley.
5. The pipe spreader of claim 4, wherein the alignment pawl is disposed at an end of the alignment frame.
6. A pipe hoist apparatus comprising the pipe hoist apparatus of claim 4 and a crane, the crane comprising two sets, each set of the crane comprising a boom base and a boom;
the davit includes:
the cross beam is connected with the suspension arm base in a sliding manner;
the fixed end of the hydraulic oil cylinder is hinged with the cross beam;
the middle part of the rotating arm is hinged with the movable end of the hydraulic oil cylinder, one end of the rotating arm is hinged with one end of the cross beam, which is far away from the hydraulic oil cylinder, and the other end of the rotating arm is connected with the pipe lifting appliance; the hydraulic oil cylinder is used for pushing the rotating arm to rotate around the joint of the rotating arm and the suspension arm seat;
and the push rod comprises a first part and a second part, the first part and the second part are hinged, one end of the first part, far away from the second part, is hinged with the rotating arm, and one end of the second part, far away from the first part, is hinged with the lifting arm seat.
7. A pipe crane apparatus according to claim 6, wherein the pipe crane further comprises a fixed head hinged to one end of the boom, the fixed head being adapted to be connected to a pipe hoist.
8. Pipe crane apparatus according to claim 6, wherein the boom base is provided with slide rails by which the cross beam is slidably connected with the boom base; the hinge joint adopts a pin shaft connection mode.
9. A use method of the pipe crane equipment as claimed in any one of claims 6 to 8, characterized by comprising the following steps:
the rotary locking oil cylinder push-pull bracket is enabled to move along the transverse direction of the hanger, so that the lever is driven to rotate, and the scraper mounted on the lever rotates along with the lever; when the thickness direction of the scraper is vertical to the radial direction of the pipe, the scraper is inserted into a gap of the adjacent pipe, and then the scraper is rotated by 90 degrees to enable the scraper to hook the pipe, so that the pipe is grabbed;
the alignment oil cylinder pushes the alignment frame to move longitudinally along the hanging bracket, when the movable end of the alignment oil cylinder extends, the alignment frame moves to the edge, and in the retraction process of the alignment oil cylinder, the alignment push claw arranged on the alignment frame pushes the end part of the pipe hung on the scraper blade to align the end part;
the lifting oil cylinder pushes and pulls the movable pulley to move along the longitudinal direction of the hanger, so that the first flexible cable and the second flexible cable are driven to stretch and retract; when the movable pulley moves towards the lifting oil cylinder, the leading-out end of the first flexible cable led out upwards from the third fixed pulley retracts, the leading-out end of the second flexible cable led out upwards from the fourth fixed pulley retracts, and the retracting distances are the same; when the movable pulley moves away from the lifting oil cylinder, the first flexible cable and the second flexible cable fall under the action of gravity, and the falling distances of the first flexible cable and the second flexible cable are equal; this causes the pipe sling to move in a vertical direction;
the movable end of the hydraulic oil cylinder extends out, so that the rotating arm is pushed to rotate around the joint of the rotating arm and the lifting arm seat, force is applied to the lifting arm seat through the push rod, the lifting arm seat reacts the force to the cross beam through the push rod and the rotating arm, the cross beam slides outwards along the lifting arm seat, and the hydraulic oil cylinder and the rotating arm are driven to slide outwards together; this causes the pipe sling to move in a horizontal direction.
10. A pipeline working vehicle, characterized by comprising the pipe hoisting equipment, the bottom plate, the pipe box and the hydraulic valve bank as claimed in any one of claims 6 to 8;
the pipe crane equipment comprises a base plate, a pipe box, a hydraulic valve group, a pipe lifting device and a hydraulic power control device, wherein the base plate is used for supporting the pipe lifting device, the pipe box is arranged between the two base plates, and the hydraulic valve group is arranged on the base plate and used for controlling the hydraulic power of the pipe lifting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110125575.6A CN112938741B (en) | 2021-01-29 | 2021-01-29 | Pipe lifting appliance, pipe lifting equipment, pipeline operation vehicle and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110125575.6A CN112938741B (en) | 2021-01-29 | 2021-01-29 | Pipe lifting appliance, pipe lifting equipment, pipeline operation vehicle and use method |
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| CN112938741A true CN112938741A (en) | 2021-06-11 |
| CN112938741B CN112938741B (en) | 2023-05-30 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040190995A1 (en) * | 2003-03-24 | 2004-09-30 | Komatsu Ltd. | Pipelayer |
| JP2009249823A (en) * | 2008-04-01 | 2009-10-29 | Kurimoto Kasei Kogyo Kk | Pipe conveying carriage |
| CN102046450A (en) * | 2008-05-29 | 2011-05-04 | 沃尔沃建筑设备公司 | Pipelayer with cab riser |
| US20150167408A1 (en) * | 2009-05-20 | 2015-06-18 | T&T Engineering Services, Inc. | Alignment Apparatus and Method for a Boom of a Pipe Handling System |
| CN106586805A (en) * | 2017-01-03 | 2017-04-26 | 长沙远大住宅工业集团股份有限公司 | Lifting appliance special for large component conveying frame |
| CN107387870A (en) * | 2017-09-18 | 2017-11-24 | 金丹 | A kind of automatic pipe-laying equipment |
| CN108545594A (en) * | 2018-07-17 | 2018-09-18 | 中铁工程装备集团有限公司 | A kind of mortar jar handling apparatus |
| CN108750908A (en) * | 2018-06-06 | 2018-11-06 | 芜湖市赛博信息技术咨询服务有限公司 | Informationized control pipe fitting lifting appliance |
-
2021
- 2021-01-29 CN CN202110125575.6A patent/CN112938741B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040190995A1 (en) * | 2003-03-24 | 2004-09-30 | Komatsu Ltd. | Pipelayer |
| JP2009249823A (en) * | 2008-04-01 | 2009-10-29 | Kurimoto Kasei Kogyo Kk | Pipe conveying carriage |
| CN102046450A (en) * | 2008-05-29 | 2011-05-04 | 沃尔沃建筑设备公司 | Pipelayer with cab riser |
| US20150167408A1 (en) * | 2009-05-20 | 2015-06-18 | T&T Engineering Services, Inc. | Alignment Apparatus and Method for a Boom of a Pipe Handling System |
| CN106586805A (en) * | 2017-01-03 | 2017-04-26 | 长沙远大住宅工业集团股份有限公司 | Lifting appliance special for large component conveying frame |
| CN107387870A (en) * | 2017-09-18 | 2017-11-24 | 金丹 | A kind of automatic pipe-laying equipment |
| CN108750908A (en) * | 2018-06-06 | 2018-11-06 | 芜湖市赛博信息技术咨询服务有限公司 | Informationized control pipe fitting lifting appliance |
| CN108545594A (en) * | 2018-07-17 | 2018-09-18 | 中铁工程装备集团有限公司 | A kind of mortar jar handling apparatus |
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| Publication number | Publication date |
|---|---|
| CN112938741B (en) | 2023-05-30 |
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