CN103723621A - Sling for hoisting mold of prestressed concrete pile and hoisting method thereof - Google Patents
Sling for hoisting mold of prestressed concrete pile and hoisting method thereof Download PDFInfo
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- CN103723621A CN103723621A CN201310676507.4A CN201310676507A CN103723621A CN 103723621 A CN103723621 A CN 103723621A CN 201310676507 A CN201310676507 A CN 201310676507A CN 103723621 A CN103723621 A CN 103723621A
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Abstract
A sling for hoisting a mold of a prestressed concrete pile comprises a left hook body and a right hook body, wherein the left hook body is movably connected with the right hook body; the upper ends of the left hook body and the right hook body are respectively connected with a hoisting device; the lower parts of the left hook body and the right hook body respectively bend inwards; a release pressure spring is mounted between the upper parts of the left hook body and the right hook body; the opening and meshing of hook heads are controlled via the numerical difference between a moment generated by the elastic force of the release pressure spring and another moment generated by the gravity of the lower parts of the left hook body and the right hook body. The sling for hoisting the mold of the prestressed concrete pile is simple in structure, does not need any power to be driven, is environmental-friendly, low in manufacturing cost, safe and reliable in action and convenient to operate, reduces worker's labor intensity, avoids safety potential risk, increases the turnover times of a high-temperature steam curing kiln, improves working efficiency and lowers production cost.
Description
Technical field
The present invention relates to lifting machinery and the hoisting method of the realm of building construction, the particularly lifting appliance of prestressed concrete pile mould and hoisting method.
Background technology
Prestressed concrete pile in mould after centrifugal treating, put into high temperature steam curing kiln and carry out High Temperature Curing, the degree of depth of high temperature steam curing kiln is generally 3-5 rice, temperature in high temperature steam curing kiln is up to 50-100 ℃, when prestressed concrete pile completes after High Temperature Curing in mould, must hang the Kai Yaogai processing of lowering the temperature, after processing by the coolings of about 2 hours, make kiln temperature drop to 50 ℃ when following, again the mould that is built-in with prestressed concrete pile is hung up from high temperature steam curing kiln, be put on the place at kiln place and carry out the demoulding.Current practice is, in the both sides at the two ends of mould, two suspension ring are respectively set, on two chain slings of hoisting traveling crane, two suspension hooks are respectively installed, when operation, operative employee enters in high temperature steam curing kiln by ladder, suspension hook is hooked respectively to two suspension ring of both mold ends, then by hoisting traveling crane, mould is hung out to high temperature steam curing kiln.Generally, the mould with prestressed concrete pile in high temperature steam curing kiln is all hung out at least 1 hour time that operative employee works in high temperature steam curing kiln.There are some potential safety hazards in this manual work method, and the one, operative employee throws from climbing up to climb down easily in high temperature steam curing kiln, dangerous; The 2nd, operative employee is hooked suspension hook respectively two suspension ring of both mold ends, must on mould, walk back and forth, dangerous; The 3rd, after mould hangs out and is placed on place, also want operative employee's operation of breaking off relations respectively at the two at mould, because the driving circle on mould is circular, so mould easily produces rolling phenomenon, operative employee is easily weighed wounded, dangerous; The 4th, operative employee works heatstroke phenomenon often occurs summer in high temperature steam curing kiln, dangerous; The 5th, due to the limited space of high temperature steam curing kiln Inner, operative employee cannot dodge the mould that lifting is risen in high temperature steam curing kiln, once the generations such as hoisting wirerope, suspension hook or suspension ring are ruptured or are come off, or lifting appliance et out of order, work the mould be suspended in mid air and very easily drop to pound and hurt people, dangerous.In addition, owing to being the artificial lower operation in high temperature steam curing kiln of arriving, to pass through the cooling of about 2 hours, by the time high temperature steam curing kiln temperature drops to 50 ℃ when following, hook personnel could descend in high temperature steam curing kiln and link up with operation, and inefficiency, labour intensity is large, productive costs is high.
Summary of the invention
The object of this invention is to provide a kind of suspender and hoisting method thereof that lifts by crane prestressed concrete pile mould, can rely on the architectural feature of suspender self, realize and self-servicely hold or discharge mould, complete lifting operation, increase work efficiency, reduce labor intensity, reduce potential safety hazard.
Solution of the present invention: the suspender of lifting prestressed concrete pile mould, contain left coupler body, right coupler body, left coupler body, right coupler body is flexibly connected, left coupler body, the upper end of right coupler body is connected with lifting appliance respectively, left coupler body bottom, right coupler body bottom curves inwardly respectively, left coupler body top, the moment and the left coupler body bottom that by its elastic force, produce have been installed between right coupler body top, the difference of the numerical value between the moment that the gravity of right coupler body bottom produces is controlled the release stage clip of gib head action, left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, be greater than release stage clip and act on left coupler body top, when the elastic force on right coupler body top is connected the moment of fulcrum generation with right coupler body with respect to left coupler body, left coupler body, right coupler body gib head part is in occlusal position, only have the left coupler body of working as or right coupler body gib head partly to touch prestressed concrete pile mould, prestressed concrete pile mould action is connected in the application force of left coupler body or right coupler body gib head part the moment that fulcrum produces with right coupler body with respect to left coupler body, offset left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, at release stage clip, act on left coupler body, the elastic force on right coupler body top is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum generation, left coupler body bottom, the gib head of right coupler body bottom partially opens, left coupler body, right coupler body is in open mode.
There is contiguous block at left coupler body or right coupler body middle part, contiguous block inside is slotted eye, porose on the dual-side of slotted eye, right coupler body or left coupler body pass from the slotted eye at left coupler body or right coupler body middle part, right coupler body or left coupler body middle part, the corresponding position lateral opening in the both sides of slotted eye is also provided with hole, and the two ends that connect fulcrum are fixedly connected with the dual-side of slotted eye by the hole on slotted eye dual-side, connect the middle part of fulcrum through the hole at right coupler body or left coupler body middle part, be flexibly connected with right coupler body or left coupler body.The slotted eye effect at left coupler body or right coupler body middle part is, prevents that the right coupler body that is flexibly connected with left coupler body or right coupler body or left coupler body from opening too greatly discharging under stage clip effect, cause release stage clip to come off.
The inner side edge on left coupler body or right coupler body top is provided with pogo barrel, discharges stage clip one end and is placed in pogo barrel, and the other end of pogo barrel is enclosed within on the spring guide on the inner side edge on right coupler body or left coupler body top.
The lower hook face of left coupler body and right coupler body gib head part is angular plane surface, angle β between two lower hook faces is 60-90 °, guarantees that the lower hook face portion on left coupler body and right coupler body gib head is touching when prestressed concrete pile mould drives the dual-side enclosing and can easily open.
The face of rising to the bait of left coupler body, right coupler body gib head part is angular plane surface, and the oblique angle α of angular plane surface is 5-10 °, guarantees that left coupler body and right coupler body gib head can be stuck in the neck that prestressed concrete pile mould drives circle both sides reliably.
With the present invention, lift by crane the method for prestressed concrete pile mould, the suspender of lifting prestressed concrete pile mould is slowly discharged downwards from lifting appliance, now, in left coupler body bottom, under the Action of Gravity Field of right coupler body bottom, left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, be greater than release stage clip and act on left coupler body top, the elastic force on right coupler body top is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, left coupler body bottom, the gravity of right coupler body bottom overcomes the elastic force effect that discharges stage clip, make left coupler body, right coupler body gib head part is in occlusal position, the suspender of lifting prestressed concrete pile mould is in release position.
The suspender of lifting prestressed concrete pile mould continues to move down from lifting appliance, when the lower hook face of left coupler body and right coupler body gib head part bottom drives the dual-side of circle to contact with prestressed concrete pile mould respectively, the dual-side of prestressed concrete pile mould driving circle acts on left coupler body and with respect to left coupler body, is connected with the application force of right coupler body gib head part the moment that fulcrum produces with right coupler body, offset left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, at release stage clip, act on left coupler body top, the elastic force on right coupler body top is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum generation, left coupler body bottom, the gib head part of right coupler body bottom, along with moving down progressively, opens by the suspender of lifting prestressed concrete pile mould, when left coupler body bottom, the lower hook face of the gib head part of right coupler body bottom slips over prestressed concrete pile mould and drives after the dual-side enclosing, left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, be greater than release stage clip and act on left coupler body top, the elastic force on right coupler body top is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, discharging under stage clip effect, left coupler body bottom, the gib head of right coupler body bottom partly snaps in the neck that prestressed concrete pile mould drives circle.
Lifting appliance is by the slowly upwards lifting of the suspender of lifting prestressed concrete pile mould, and the suspender that prestressed concrete pile mould is lifted by crane prestressed concrete pile mould hangs out from high temperature steam curing kiln.
Lifting appliance by prestressed concrete pile mould lifting behind ground, the suspender of lifting prestressed concrete pile mould is slowly discharged downwards from lifting appliance, left coupler body bottom, the gib head of right coupler body bottom partly touches after prestressed concrete pile die ontology, prestressed concrete pile die ontology acts on left coupler body and with respect to left coupler body, is connected with the application force of right coupler body gib head part the moment that fulcrum produces with right coupler body, offset left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, at release stage clip, act on left coupler body top, the elastic force on right coupler body top is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum generation, left coupler body bottom, the gib head of right coupler body bottom partially opens, lifting appliance continues to move down, until the suspender of lifting prestressed concrete pile mould drives the dual-side of circle to come off completely from prestressed concrete pile mould.
The present invention adopts moment and the left coupler body bottom of the elastic force generation that discharges stage clip, the difference of the numerical value between the moment that the gravity of right coupler body bottom produces is controlled opening of gib head and snap-action, have simple in structure, without using any power driven, environmental protection, low cost of manufacture, move safe and reliable, easy to operate, adopt the present invention, operative employee does not link up with and decoupling device operation under not needing again in high temperature steam curing kiln, alleviated workman's labour intensity, stopped potential safety hazard, owing to hanging out after kiln lid, do not need to wait for cooling, can carry out lifting operation, the turnover access times of high temperature steam curing kiln have been increased, improved work efficiency, reduced productive costs.
Accompanying drawing explanation
Fig. 1 is the embodiment 1 of the present invention's suspender of the lifting by crane prestressed concrete pile mould structural representation in free state.
Fig. 2 is the embodiment 2 of the present invention's suspender of the lifting by crane prestressed concrete pile mould structural representation in free state.
Fig. 3 is I portion enlarged diagram.
Fig. 4 is that the A of Fig. 1 is to view.
Fig. 5 is the present invention embodiment 1 of suspender of lifting by crane prestressed concrete pile mould, the left coupler body of embodiment 2 structural representation while driving the dual-side of circle to contact with right coupler body gib head part with prestressed concrete pile mould.
Fig. 6 is that the present invention embodiment 1 of suspender of lifting by crane prestressed concrete pile mould is, the left coupler body of embodiment 2 and right coupler body gib head partly snap in the structural representation that prestressed concrete pile mould drives the neck of circle.
Fig. 7 be the present invention lift by crane prestressed concrete pile mould the embodiment 1 of suspender, the left coupler body of embodiment 2 and right coupler body gib head part structural representation in an open position.
Fig. 8 is the structural representation that lifting appliance is used the embodiment of the present invention 1, embodiment 2 lifting prestressed concrete pile moulds.
In figure: 1---left coupler body bottom; 2---contiguous block; 3---left coupler body top; 4---lifting hole(eyelet); 5---hoist cable; 6---pogo barrel; 7---discharge stage clip; 8---hoist cable; 9---spring guide; 10---lifting hole(eyelet); 11---right coupler body top; 12---connect fulcrum; 13---right coupler body bottom; 14---lower hook face; 15---the face of rising to the bait; 16---slotted eye; 17---drive circle; 18---neck; 19---high temperature steam curing kiln; 20---lifting appliance.
The specific embodiment
In Fig. 1, contain left coupler body, right coupler body, left coupler body, right coupler body is flexibly connected, left coupler body, the lifting hole(eyelet) 4 of the upper end of right coupler body, 10 respectively with lifting appliance 20 on hoist cable 5, 8 connect, left coupler body bottom 1, right coupler body bottom 13 curves inwardly respectively, pogo barrel 6 has been installed in 3 inner sides, left coupler body top, spring guide 9 has been installed on the position relative with left coupler body top 3 inner side pogo barrels 6 in 11 inner sides, right coupler body top, the one end that discharges stage clip 7 is placed in pogo barrel 6, the other end that discharges stage clip 7 is enclosed within on spring guide 9, there is contiguous block 2 at left coupler body middle part, contiguous block 2 inside are slotted eye 16, slotted eye 16 effects are to prevent that the right coupler body being flexibly connected with left coupler body from opening too large under 7 effects of release stage clip, cause release stage clip 7 to come off, porose on the dual-side of slotted eye 16, right coupler body passes from slotted eye 16, the lateral opening corresponding position, both sides of right coupler body middle part and slotted eye 16 is also provided with hole, the two ends that connect fulcrum 12 are fixedly connected with the dual-side of slotted eye 16 by the hole on slotted eye 16 dual-sides, connect the middle part of fulcrum 12 through the hole at right coupler body or left coupler body middle part, be flexibly connected with right coupler body or left coupler body, discharge moment and the left coupler body bottom 1 of the elastic force generation of stage clip 7, the difference of the moment that the gravity of right coupler body bottom 13 produces is controlled gib head action, left coupler body bottom 1, the gravity of right coupler body bottom 13 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, be greater than release stage clip 7 and act on left coupler body top 3, when the elastic force on right coupler body top 11 is connected the moment of fulcrum 12 generations with right coupler body with respect to left coupler body, left coupler body, right coupler body gib head part is in occlusal position, only have the left coupler body of working as or right coupler body gib head partly to touch prestressed concrete pile mould, prestressed concrete pile mould action is connected in the application force of left coupler body or right coupler body gib head part the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, offset left coupler body bottom 1, the gravity of right coupler body bottom 13 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, at release stage clip 7, act on left coupler body top 3, the elastic force on right coupler body top 11 is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum 12 generations, left coupler body bottom 1, the gib head of right coupler body bottom 13 partially opens, left coupler body, right coupler body is in open mode.The lower hook face 14 of left coupler body and right coupler body gib head part is angular plane surface, angle β between two lower hook faces 14 is 70 °, the lower hook face 14 that guarantees left coupler body and right coupler body gib head is touching when prestressed concrete pile mould drives the dual-side that encloses 17 and can easily open, the face of rising to the bait 15 of left coupler body, right coupler body gib head part is angular plane surface, the oblique angle α of angular plane surface is 6 °, guarantees that left coupler body and right coupler body gib head can be stuck in reliably prestressed concrete pile mould and drive on the neck 18 that encloses 17 both sides.
In Fig. 2: contain left coupler body, right coupler body, left coupler body, right coupler body is flexibly connected, left coupler body, the lifting hole(eyelet) 4 of the upper end of right coupler body, 10 respectively with lifting appliance 20 on hoist cable 5, 8 connect, left coupler body bottom 1, right coupler body bottom 13 curves inwardly respectively, pogo barrel 6 has been installed in 3 inner sides, right coupler body top, spring guide 9 has been installed on the position relative with right coupler body top 3 inner side pogo barrels 6 in 11 inner sides, left coupler body top, the one end that discharges stage clip 7 is placed in pogo barrel 6, the other end that discharges stage clip 7 is enclosed within on spring guide 9, there is contiguous block 2 at right coupler body middle part, contiguous block 2 inside are slotted eye 16, slotted eye 16 effects are to prevent that the left coupler body being flexibly connected with right coupler body from opening too large under 7 effects of release stage clip, cause release stage clip 7 to come off, porose on the dual-side of slotted eye 16, left coupler body passes from slotted eye 16, the lateral opening corresponding position, both sides of left coupler body middle part and slotted eye 16 is also provided with hole, the two ends that connect fulcrum 12 are fixedly connected with the dual-side of slotted eye 16 by the hole on slotted eye 16 dual-sides, connect the middle part of fulcrum 12 through the hole at left coupler body middle part, be flexibly connected with left coupler body, discharge moment and the left coupler body bottom 1 of the elastic force generation of stage clip 7, the difference of the moment that the gravity of right coupler body bottom 13 produces is controlled gib head action, left coupler body bottom 1, the gravity of right coupler body bottom 13 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, be greater than release stage clip 7 and act on left coupler body top 3, when the elastic force on right coupler body top 11 is connected the moment of fulcrum 12 generations with right coupler body with respect to left coupler body, left coupler body, right coupler body gib head part is in occlusal position, only have the left coupler body of working as or right coupler body gib head partly to touch prestressed concrete pile mould, prestressed concrete pile mould action is connected in the application force of left coupler body or right coupler body gib head part the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, offset left coupler body bottom 1, the gravity of right coupler body bottom 13 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, at release stage clip 7, act on left coupler body top 3, the elastic force on right coupler body top 11 is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum 12 generations, left coupler body bottom 1, the gib head of right coupler body bottom 13 partially opens, left coupler body, right coupler body is in open mode.The lower hook face 14 of left coupler body and right coupler body gib head part is angular plane surface, angle β between two lower hook faces 14 is 80 °, the lower hook face 14 that guarantees left coupler body and right coupler body gib head is touching when prestressed concrete pile mould drives the dual-side that encloses 17 and can easily open, the face of rising to the bait 15 of left coupler body, right coupler body gib head part is angular plane surface, the oblique angle α of angular plane surface is 9 °, guarantees that left coupler body and right coupler body gib head can be stuck in reliably prestressed concrete pile mould and drive on the neck 18 that encloses 17 both sides.
With the present invention, lift by crane the method for prestressed concrete pile mould, the suspender of lifting prestressed concrete pile mould is slowly discharged downwards from lifting appliance, now, in left coupler body bottom 1, under the Action of Gravity Field of right coupler body bottom 13, left coupler body bottom 1, the gravity of right coupler body bottom 13 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, be greater than release stage clip 7 and act on left coupler body top 3, the elastic force on right coupler body top 11 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, left coupler body bottom 1, the gravity of right coupler body bottom 13 overcomes the elastic force effect that discharges stage clip 7, make left coupler body, right coupler body gib head part is in occlusal position, the suspender of lifting prestressed concrete pile mould is in release position.
The suspender of lifting prestressed concrete pile mould continues to move down from lifting appliance, when the lower hook face 14 of left coupler body and right coupler body gib head part drives the dual-side of circle 17 to contact with prestressed concrete pile mould respectively, the application force that prestressed concrete pile mould drives the dual-side of circle 17 to act on left coupler body and right coupler body gib head part is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, offset left coupler body bottom 1, the gravity of right coupler body bottom 13 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, at release stage clip 7, act on left coupler body top 3, the elastic force on right coupler body top 11 is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum 12 generations, left coupler body bottom 1, the gib head part of right coupler body bottom 13 is opened along with the suspender of lifting prestressed concrete pile mould moves down progressively, when left coupler body bottom 1, the lower hook face 14 of the gib head part of right coupler body bottom 13 slips over prestressed concrete pile mould and drives after the dual-side that encloses 17, left coupler body bottom 1, the gravity of right coupler body bottom 13 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, be greater than release stage clip 7 and act on left coupler body top 3, the elastic force on right coupler body top 11 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, discharging under stage clip 7 effects, left coupler body bottom 1, the gib head of right coupler body bottom 13 partly snaps in prestressed concrete pile mould and drives on the neck 18 that encloses 17.
Lifting appliance 20 is by the slowly upwards lifting of the suspender of lifting prestressed concrete pile mould, and the suspender that prestressed concrete pile mould is lifted by crane prestressed concrete pile mould hangs out from high temperature steam curing kiln 19.
Lifting appliance 20 by prestressed concrete pile mould lifting behind ground, the suspender of lifting prestressed concrete pile mould is slowly discharged downwards from lifting appliance 20, left coupler body bottom 1, the gib head of right coupler body bottom 13 partly touches after prestressed concrete pile die ontology, the application force that prestressed concrete pile die ontology acts on left coupler body and right coupler body gib head part is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, offset left coupler body bottom 1, the gravity of right coupler body bottom 13 is connected the moment that fulcrum 12 produces with right coupler body with respect to left coupler body, at release stage clip 7, act on left coupler body top 3, the elastic force on right coupler body top 11 is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum 12 generations, left coupler body bottom 1, the gib head of right coupler body bottom 13 partially opens, lifting appliance 20 continues to move down, until the suspender of lifting prestressed concrete pile mould drives the dual-side of circle 17 to come off completely from prestressed concrete pile mould.
Claims (8)
1. lift by crane the suspender of prestressed concrete pile mould, contain left coupler body, right coupler body, left coupler body, right coupler body is flexibly connected, left coupler body, the upper end of right coupler body is connected with lifting appliance respectively, left coupler body bottom, right coupler body bottom curves inwardly respectively, it is characterized in that left coupler body top, the moment and the left coupler body bottom that by its elastic force, produce have been installed between right coupler body top, the difference of the numerical value between the moment that the gravity of right coupler body bottom produces is controlled the release stage clip of gib head action, left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, be greater than release stage clip and act on left coupler body top, when the elastic force on right coupler body top is connected the moment of fulcrum generation with right coupler body with respect to left coupler body, left coupler body, right coupler body gib head part is in occlusal position, when left coupler body or right coupler body gib head partly touch prestressed concrete pile mould, prestressed concrete pile mould action is connected in the application force of left coupler body or right coupler body gib head part the moment that fulcrum produces with right coupler body with respect to left coupler body, the gravity of having offset left coupler body bottom, right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, the elastic force that acts on left coupler body, right coupler body top at release stage clip is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum generation, and the gib head of left coupler body bottom, right coupler body bottom partially opens.
2. the suspender of lifting prestressed concrete pile mould according to claim 1, it is characterized in that there is contiguous block at left coupler body or right coupler body middle part, contiguous block inside is slotted eye, porose on the dual-side of slotted eye, right coupler body or left coupler body pass from the slotted eye at left coupler body or right coupler body middle part, right coupler body or left coupler body middle part, the corresponding position lateral opening in the both sides of slotted eye is also provided with hole, the two ends that connect fulcrum are fixedly connected with the dual-side of slotted eye by the hole on slotted eye dual-side, connect the middle part of fulcrum through the hole at right coupler body or left coupler body middle part, be flexibly connected with right coupler body or left coupler body.
3. the suspender of lifting prestressed concrete pile mould according to claim 1 and 2, the inner side edge that it is characterized in that left coupler body or right coupler body top is provided with pogo barrel, discharge stage clip one end and be placed in pogo barrel, the other end of pogo barrel is enclosed within on the spring guide on the inner side edge on right coupler body or left coupler body top.
4. the suspender of lifting prestressed concrete pile mould according to claim 1 and 2, the lower hook face that it is characterized in that left coupler body and right coupler body gib head part is angular plane surface, angle β between two lower hook faces is 60-90 °, guarantees that the lower hook face portion on left coupler body and right coupler body gib head is touching when prestressed concrete pile mould drives the dual-side enclosing and can easily open.
5. the suspender of lifting prestressed concrete pile mould according to claim 3, is characterized in that the lower hook face of left coupler body and right coupler body gib head is angular plane surface, and the angle β between two lower hook faces is 60-90 °.
6. the suspender of lifting prestressed concrete pile mould according to claim 4, is characterized in that the face of rising to the bait of left coupler body, right coupler body gib head part is angular plane surface, and the oblique angle α of angular plane surface is 5-10 °.
7. the suspender of lifting prestressed concrete pile mould according to claim 5, is characterized in that the face of rising to the bait of left coupler body, right coupler body gib head part is angular plane surface, and the oblique angle α of angular plane surface is 5-10 °.
8. right to use requires the method for the suspender lifting prestressed concrete pile mould described in 1, the suspender of lifting prestressed concrete pile mould is slowly discharged downwards from lifting appliance, now, in left coupler body bottom, under the Action of Gravity Field of right coupler body bottom, left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, be greater than release stage clip and act on left coupler body top, the elastic force on right coupler body top is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, left coupler body bottom, the gravity of right coupler body bottom overcomes the elastic force effect that discharges stage clip, make left coupler body, right coupler body gib head part is in occlusal position, the suspender of lifting prestressed concrete pile mould is in release position,
The suspender of lifting prestressed concrete pile mould continues to move down from lifting appliance, when the lower hook face of left coupler body and right coupler body gib head part bottom drives the dual-side of circle to contact with prestressed concrete pile mould respectively, the dual-side of prestressed concrete pile mould driving circle acts on left coupler body and with respect to left coupler body, is connected with the application force of right coupler body gib head part the moment that fulcrum produces with right coupler body, offset left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, at release stage clip, act on left coupler body top, the elastic force on right coupler body top is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum generation, left coupler body bottom, the gib head part of right coupler body bottom, along with moving down progressively, opens by the suspender of lifting prestressed concrete pile mould, when left coupler body bottom, the lower hook face of the gib head part of right coupler body bottom slips over prestressed concrete pile mould and drives after the dual-side enclosing, left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, be greater than release stage clip and act on left coupler body top, the elastic force on right coupler body top is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, discharging under stage clip effect, left coupler body bottom, the gib head of right coupler body bottom partly snaps in the neck that prestressed concrete pile mould drives circle,
Lifting appliance is by the slowly upwards lifting of the suspender of lifting prestressed concrete pile mould, and the suspender that prestressed concrete pile mould is lifted by crane prestressed concrete pile mould hangs out from high temperature steam curing kiln;
Lifting appliance by prestressed concrete pile mould lifting behind ground, the suspender of lifting prestressed concrete pile mould is slowly discharged downwards from lifting appliance, left coupler body bottom, the gib head of right coupler body bottom partly touches after prestressed concrete pile die ontology, prestressed concrete pile die ontology acts on left coupler body and with respect to left coupler body, is connected with the application force of right coupler body gib head part the moment that fulcrum produces with right coupler body, offset left coupler body bottom, the gravity of right coupler body bottom is connected the moment that fulcrum produces with right coupler body with respect to left coupler body, at release stage clip, act on left coupler body top, the elastic force on right coupler body top is connected with right coupler body with respect to left coupler body under the moment loading of fulcrum generation, left coupler body bottom, the gib head of right coupler body bottom partially opens, lifting appliance continues to move down, until the suspender of lifting prestressed concrete pile mould drives the dual-side of circle to come off completely from prestressed concrete pile mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676507.4A CN103723621B (en) | 2013-12-13 | 2013-12-13 | Lift by crane the suspender and its hoisting method of prestressed-concrete pile mold |
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| CN201310676507.4A CN103723621B (en) | 2013-12-13 | 2013-12-13 | Lift by crane the suspender and its hoisting method of prestressed-concrete pile mold |
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| CN103723621B CN103723621B (en) | 2019-03-26 |
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| CN2032606U (en) * | 1987-06-27 | 1989-02-15 | 陕西省水利机械厂 | Loading and unloading hook separating device |
| CN1587542A (en) * | 2004-10-12 | 2005-03-02 | 大连理工大学 | Hydraulic tripper of strong rammer and its tripping method |
| CN102976201A (en) * | 2011-09-07 | 2013-03-20 | 北京南口轨道交通机械有限责任公司 | Lifting appliance |
| WO2013079175A1 (en) * | 2011-11-30 | 2013-06-06 | Liebherr-Werk Biberach Gmbh | Apparatus for assembling or disassembling a crane |
| CN203269352U (en) * | 2013-01-30 | 2013-11-06 | 中国十七冶集团有限公司 | Clamp forceps for hoisting steel purlins |
| CN203699674U (en) * | 2013-12-13 | 2014-07-09 | 盐城市双强管桩有限公司 | Lifting appliance for lifting prestressed concrete pile mould |
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2013
- 2013-12-13 CN CN201310676507.4A patent/CN103723621B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032606U (en) * | 1987-06-27 | 1989-02-15 | 陕西省水利机械厂 | Loading and unloading hook separating device |
| CN1587542A (en) * | 2004-10-12 | 2005-03-02 | 大连理工大学 | Hydraulic tripper of strong rammer and its tripping method |
| CN102976201A (en) * | 2011-09-07 | 2013-03-20 | 北京南口轨道交通机械有限责任公司 | Lifting appliance |
| WO2013079175A1 (en) * | 2011-11-30 | 2013-06-06 | Liebherr-Werk Biberach Gmbh | Apparatus for assembling or disassembling a crane |
| CN203269352U (en) * | 2013-01-30 | 2013-11-06 | 中国十七冶集团有限公司 | Clamp forceps for hoisting steel purlins |
| CN203699674U (en) * | 2013-12-13 | 2014-07-09 | 盐城市双强管桩有限公司 | Lifting appliance for lifting prestressed concrete pile mould |
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| CN103723621B (en) | 2019-03-26 |
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