CN103318791B - Holder rope tightening device and there is its hoisting crane - Google Patents
Holder rope tightening device and there is its hoisting crane Download PDFInfo
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- CN103318791B CN103318791B CN201310249881.6A CN201310249881A CN103318791B CN 103318791 B CN103318791 B CN 103318791B CN 201310249881 A CN201310249881 A CN 201310249881A CN 103318791 B CN103318791 B CN 103318791B
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Abstract
The invention provides a kind of hoisting crane holding in the palm rope tightening device and there is it.Wherein holder rope tightening device comprises: two the first mount pads (10) positioned opposite, and stretching device (20), be arranged between two the first mount pads (10), stretching device (20) comprises idler assembly (21) and hold down assembly (22), the two ends of idler assembly (21) connect one to one with two the first mount pads (10) respectively, idler assembly (21) has the wiring cambered surface extended along its axis direction, idler assembly (21) can be arranged relative to two the first mount pads (10) with the lifting rope of tensioning winding in wiring cambered surface (30) with moving radially, holding down assembly, (22) to be arranged at the first mount pad (10) upper and drive with idler assembly (21) and be connected.The present invention can improve steel rope easily rope skipping and the phenomenon of disorder cable on reel and pulley, reduces lifting rope institute frayed, increases its service life.
Description
Technical field
The present invention relates to elevator machinery technical field, in particular to a kind of hoisting crane holding in the palm rope tightening device and there is it.
Background technology
The lifting mechanism of hoisting crane in use, lifting rope from reel come out to winding on the fixed pulley of crane arm between one section rope know from experience sagging due to deadweight, thus cause when not hanging loads or lifting mechanism driving gearshift, lifting rope easily produces rope skipping or disorder cable phenomenon on reel and fixed pulley.At present, in order to avoid the generation of lifting rope sagging, guarantee the normal use of lifting mechanism, hoisting crane is provided with holder rope tightening device.
As shown in Figure 1, holder rope tightening device comprises support portion 10 ' and tensioned portion 20 '.Wherein the supporting seat 11 ' of support portion 10 ' is fixed on the equilibrium arm of hoisting crane, and support wheel 12 ' is arranged on supporting seat 11 ' pivotly by supporting wheel shaft 13 '.The lever 21 ' of tensioned portion 20 ' is articulated with and supports on wheel shaft 13 ', tension wheel 22 ' is arranged at the first end of lever 21 ' pivotly by tension wheel shaft 23 ', weight linear meter 25 ' is articulated with the second end of lever 21 ' by balancer shaft 24 ', and weight linear meter 25 ' bottom is fixed with clump weight 26 '.
In holder rope tightening device shown in Fig. 1, support wheel 12 ' and tension wheel 22 ' generally adopt pulley, and the tensioning of tension wheel 22 ' to lifting rope 30 ' is the gravity by clump weight 26 ', and the power transmission through lever 21 ' forms.The defect of the holder rope tightening device of this pulley form is, because the outer circle wall of pulley has groove structure, when lifting rope 30 ' winding is on support wheel 12 ' and tension wheel 22 ', most of outside face of lifting rope 30 ' can be contained in groove structure and with the medial surface of groove structure and rub, cause the wipe contact area between lifting rope 30 ' and support wheel 12 ' and tension wheel 22 ' larger, lifting rope 30 ' friction is increased, and lifting rope 30 ' is easily worn.
Summary of the invention
The present invention aims to provide and a kind ofly holds in the palm rope tightening device and have its hoisting crane, can improve the steel rope easily phenomenon of rope skipping and disorder cable on reel and pulley, reduce lifting rope institute frayed, increase its service life.
To achieve these goals, according to an aspect of the present invention, provide a kind of holder rope tightening device, comprising: two the first mount pads positioned opposite; And stretching device, be arranged between two the first mount pads, stretching device comprises idler assembly and holds down assembly, the two ends of idler assembly connect one to one with two the first mount pads respectively, idler assembly has the wiring cambered surface extended along its axis direction, idler assembly can be arranged with the lifting rope of tensioning winding in wiring cambered surface relative to two the first mount pads with moving radially, and holds down assembly to be arranged on the first mount pad and to drive with idler assembly to be connected.
Further, each first mount pad has long guiding hole respectively, long guiding hole is arranged along the radial direction of idler assembly, the two ends one_to_one corresponding of idler assembly to be located in the long guiding hole of two the first mount pads and to arrange movingly along long guiding hole, and the side driving with the end of idler assembly being arranged at the first mount pad idler assembly dorsad that holds down assembly is connected.
Further, the long guiding hole of each first mount pad has multiple, arranged in parallel between multiple long guiding hole; Idler assembly has multiple, multiple long guiding hole one_to_one corresponding of multiple idler assembly and each first mount pad are arranged, the two ends of each idler assembly are located in the corresponding long guiding hole of two the first mount pads respectively, and the distance variableization ground between multiple idler assembly is arranged.
Further, idler assembly comprises: drum shaft, and two ends are connected with two the first mount pad one_to_one corresponding respectively and can arrange with moving radially relative to two the first mount pads; And cylinder, be set on drum shaft, the outer peripheral face of cylinder forms wiring cambered surface.
Further, idler assembly also comprises gear rope part, and gear rope part is individually fixed in the two ends of cylinder.
Further, hold down assembly and comprise: the second mount pad, be fixed on the first mount pad; Elastic component, the sense of motion telescopically along idler assembly is arranged, and the first end of elastic component abuts with the second mount pad; And slide assemblies, be connected with the end winding support of idler assembly, and abut with the second end of elastic component.
Further, the second mount pad has accommodation counterbore, and the first end of elastic component is arranged on and holds in counterbore, and the first end of elastic component has abutted packing ring with between accommodation counterbore.
Further, slide assemblies comprises: slide block, is connected with the end winding support of idler assembly, and abuts with the second end of elastic component; And slide bar, its first end is fixedly connected with slide block, and its second end is arranged through the accommodation counterbore of the second mount pad, is arranged with elastic component outside slide bar.
Further, slide assemblies also comprises spacing back-up ring, and spacing back-up ring is fixed on the second end of slide bar and is positioned at the outside of the second mount pad.
Further, each first mount pad comprises: base, is connected with idler assembly; Wedge, is removably connected with the side of base idler assembly dorsad, forms connecting bore between wedge and the fitting surface of base; And latch assembly, lock to coordinate with base and wedge and be fixedly connected on installation foundation with tightening device of holder being restricted by connecting bore.
Further, base comprises adapter plate and erecting frame, and adapter plate is connected with idler assembly, and erecting frame is fixed on the side of adapter plate idler assembly dorsad; Wedge is removably connected with erecting frame, and wedge has the mounting groove of opening towards erecting frame, to make to form connecting bore between wedge and erecting frame.
According to a further aspect in the invention, provide a kind of hoisting crane, comprise holder rope tightening device, lifting rope and two equilibrium arm pull bars, holder rope tightening device is aforesaid holder rope tightening device, two the first mount pads of holder rope tightening device are connected with two equilibrium arm pull bar one_to_one corresponding respectively, and lifting rope winding is in the wiring cambered surface of idler assembly.
Apply technical scheme of the present invention, between two mount pads, connect idler assembly and drive with idler assembly holding down assembly of being connected, idler assembly has the wiring cambered surface extended along its axial direction, idler assembly, holding down assembly under driving and can moving relative to mount pad, plays the effect of tensioning lifting rope.Pulley of the prior art is replaced with idler assembly, the wiring cambered surface of idler assembly replaces the groove structure of pulley, the wipe contact area of lifting rope can be effectively reduced, and lifting rope in load-carrying process can on idler assembly Free-rolling, the different parts of the periphery wall of lifting rope is contacted with wiring cambered surface respectively, more slow down the friction between lifting rope and wiring cambered surface, thus reduce the wearing and tearing suffered by lifting rope, add service life.
Accompanying drawing explanation
The Figure of description forming a application's part is used to provide a further understanding of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 shows the schematic diagram of the holder rope tightening device according to prior art;
Fig. 2 shows the front view of holder rope tightening device according to an embodiment of the invention;
Fig. 3 shows the left view of the holder rope tightening device according to Fig. 2;
Fig. 4 shows the birds-eye view of the holder rope tightening device according to Fig. 2;
Fig. 5 shows the schematic diagram of lifting rope zero load according to an embodiment of the invention;
Fig. 6 shows the schematic diagram that lifting rope is fully loaded according to an embodiment of the invention; And
Fig. 7 shows the schematic diagram that holder rope tightening device according to an embodiment of the invention matches with lifting rope, equilibrium arm pull bar.
Detailed description of the invention
Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figures 2 to 4, according to embodiments of the invention, provide a kind of holder rope tightening device, comprise the first mount pad 10 and stretching device 20, wherein the first mount pad 10 has two, and two the first mount pads 10 are positioned opposite; Stretching device 20 is arranged between two the first mount pads 10, stretching device 20 comprises idler assembly 21 and holds down assembly 22, the two ends of idler assembly 21 connect one to one with two the first mount pads 10 respectively, and can move radially relative to two the first mount pads 10, idler assembly 21 is for tensioning lifting rope 30, correspondingly, idler assembly 21 have along its axial direction extend wiring cambered surface, lifting rope 30 winding, in wiring cambered surface, makes wiring cambered surface can provide support for lifting rope 30.Holding down assembly and 22 be positioned on the first mount pad 10, doing radial motion for driving idler assembly 21.
In conjunction with see Fig. 7, the deadweight that holder rope tightening device is arranged between lifting rope 30 comes out on crane arm first fixed pulley 60 from the reel of lifting mechanism 50 is sagging, when lift heavy or lifting mechanism 50 do not drive gear shift to lifting rope 30, holder rope tightening device can make the lifting rope 30 of winding on idler assembly 21 be in tensioning situation all the time, and can not produce rope skipping or disorder cable phenomenon on reel and fixed pulley 60.
Simultaneously, for alleviating the wearing and tearing of lifting rope 30, the parts supporting lifting rope 30 adopt idler assembly 21, the wiring cambered surface of idler assembly 21 is contacted with lifting rope 30, because the axial direction of wiring cambered surface along idler assembly 21 extends, lifting rope 30 substantially only has friction of rolling on idler assembly 21, can avoid in prior art because the lifting rope 30 adopting pulley structure wiring to cause is contained by pulley groove, cause pulley structure and lifting rope 30 frictional contact surface more and affect the problem in lifting rope 30 service life, extend the service life of lifting rope 30 and idler assembly 21.
Each first mount pad 10 comprises base 11, wedge 12 and latch assembly 13.Wherein base 11 comprises adapter plate 111 and erecting frame 112, first side of adapter plate 111 is connected with idler assembly 21, second side of adapter plate 111 idler assembly 21 is dorsad fixed with erecting frame 112, aforesaid 22 the second sides being also arranged on adapter plate 111 that hold down assembly.
Wedge 12 has the first locking hole, erecting frame 112 has the second locking hole, and latch assembly 13 comprises lock bolt and jam nut, and lock bolt is located in the first locking hole and the second locking hole, be locked by jam nut, be removably connected with erecting frame 112 to make wedge 12.
The conveniently installation of holder rope tightening device on crane balance arm, wedge 12 has mounting groove 121 towards the side of erecting frame 112, the opening of this mounting groove 121 is towards erecting frame 112, can to match with erecting frame 112 formation connecting bore to make wedge 12, after equilibrium arm pull bar 40 is located in connecting bore, be locked by latch assembly 13, facilitate the position adjustments between the first mount pad 10 and equilibrium arm pull bar 40, holder rope tightening device can be enable to carry out position adjustment according to the actual height of lifting rope 30 easily, to hold up better and tensioning lifting rope 30.
Certainly, connecting bore is here not limited to for wearing equilibrium arm pull bar 40, and when asking rope tightening device to be applied in other mechanisms, connecting bore plays and holder rope tightening device is fixedly connected on effect on corresponding installation foundation.
Compare the prior art shown in Fig. 1, owing to being that support portion 10 ' is directly fixed on equilibrium arm in Fig. 1, cause when the upper surface of lifting rope 30 ' distance equilibrium arm is higher, the supporting seat 11 ' of support portion 10 ' corresponding increase highly just must can play holder rope and tension, and the increase of supporting seat 11 ' height can cause equilibrium arm contour structures unreasonable, and affect the total tune of hoisting crane.The present invention, by being changed by the setting position of holder rope tightening device, avoids this problem.
For the ease of installing and alleviating overall weight, erecting frame 112 comprises the first plate body and the second plate body, wherein the first plate body is parallel to adapter plate 111, second plate body has two, two the second plate bodys are vertically connected between adapter plate 111 and the first plate body respectively, and the first plate body has aforesaid second locking hole.Wedge 12 comprises the 3rd plate body and the 4th plate body, 3rd plate body has two, two the 3rd plate bodys are arranged in the relative both sides of the first plate body along the radial direction of equilibrium arm pull bar 40, the two ends of two the 3rd plate bodys have aforesaid first locking hole respectively, 4th plate body has two, two the 4th plate bodys are arranged along the axial direction of equilibrium arm pull bar 40, each 4th plate body has the arcuate structure forming aforesaid mounting groove, the two ends of this arcuate structure are connected with two the 3rd plate bodys respectively, like this, aforesaid connecting bore is just defined between the 4th plate body and the first plate body.
Certainly, base 11 is not limited thereto with the structure of wedge 12 here, as long as can realize removably connecting between base 11 and wedge 12, and forms the connecting bore for wearing equilibrium arm pull bar 40 on the pedestal 11.
The conveniently adjustment of idler assembly 21, each first mount pad 10 has two long guiding holes 113 respectively, each long guiding hole 113 is arranged along the radial direction of idler assembly 21 respectively, two long guiding holes 113 are all perpendicular to equilibrium arm pull bar 40 and respectively near the relative both sides of adapter plate 111, the quantity of idler assembly 21 is corresponding with long guiding hole 113 quantity of each first mount pad 10, also it is two, the two ends of each idler assembly 21 are located in the corresponding long guiding hole 113 of two the first mount pads 10 respectively, can move along each self-corresponding long guiding hole 113 to make two idler assemblies 21, and the sense of motion of two idler assemblies 21 is contrary, can change to make the distance between two idler assemblies 21, this change by lifting rope 30 to hold down assembly 22 effect produce, thus play the effect of tensioning lifting rope 30.The two ends of each idler assembly 21 are each passed through long guiding hole 113 and are connected with 22 drivings that hold down assembly afterwards.
Certainly, here idler assembly 21 is not limited to two with the quantity of long guiding hole 113, also can be multiple, and be not limited to be parallel to each other between long guiding hole 113, as long as the distance between multiple idler assembly 21 can be made to change, the tensioning that opposing connection is located at the lifting rope 30 on multiple idler assembly 21 just can be realized.
Idler assembly 21 comprises cylinder 211 and drum shaft 212, the two ends of drum shaft 212 are located in the long guiding hole 113 of the correspondence of two the first adapter plates 111 respectively, and the two ends of drum shaft 212 are connected to and hold down assembly on 22, to realize the synchronous radial motion at drum shaft 212 two ends.Cylinder 211 is set on drum shaft 212 rotationally, and the outer peripheral face of cylinder 211 is aforesaid wiring cambered surface, and wiring cambered surface plays the effect of shoring lifting rope 30 in the process of tensioning lifting rope 30.Cylinder 211 is flexible rotating on drum shaft 212, and lifting rope 30 substantially only has friction of rolling on cylinder 211, can extend the service life of lifting rope 30 and cylinder 211.In order to reduce the wearing and tearing of lifting rope 30 pairs of cylinders 211, between cylinder 211 and its drum shaft 212, being provided with two deep groove ball bearings, making the rotation of cylinder 211 more flexible.
Preferably, adopt large, the ganoid 1Cr18Ni9Ti corrosion-resistant steel of hardness as the material of cylinder 211, to reduce the wearing and tearing of lifting rope 30, extend the service life of lifting rope 30 and cylinder 211.
In order to prevent lifting rope 30 from coming off from idler assembly 21, idler assembly 21 also comprises gear rope part 213, and gear rope part 213 is individually fixed in the two ends of cylinder 211, can play the effect of gear rope.
Hold down assembly 22 sides being fixed on adapter plate 111 idler assembly 21 dorsad, 22 one_to_one corresponding that hold down assembly with two respectively of two long guiding holes 113 on each adapter plate 111 are arranged, and on same adapter plate 111 two hold down assembly and 22 to be oppositely arranged, hold down assembly 22 effect be, by idler assembly 21, lifting rope 30 is remained tensioning state.Each holding down assembly 22 comprises slide assemblies 221, elastic component 223 and the second mount pad 224.The end winding support that slide assemblies 221 and drum shaft 212 pass corresponding long guiding hole 113 connects, and can move with the motion of drum shaft 212.Elastic component 223 is arranged along the sense of motion of idler assembly 21, its first end abuts with the second mount pad 224, its second end abuts with slide assemblies 221, by elastic component 223 stretching along idler assembly 21 sense of motion, coordinate the pressure of lifting rope 30 pairs of idler assemblies 21, idler assembly 21 can be driven to move, because two on each adapter plate 111 hold down assembly 22 for being oppositely arranged, namely two hold down assembly 22 the telescopic direction of elastic component 223 contrary, make the sense of motion of two idler assemblies 21 contrary, the adjustment change of the spacing of two idler assemblies 21 can be realized, play the effect of tensioning lifting rope 30.
Preferably, elastic component 223 is spring, and spring structure is simple and cost is lower.
In order to ensure that elastic component 223 stretches along its axial direction, prevent it from radial motion occurring, second mount pad 224 has accommodation counterbore, and the first end of elastic component 223 is connected in this accommodation counterbore, and has abutted packing ring 225 between the first end of elastic component 223 with accommodation counterbore; Slide assemblies 221 comprises slide block 226 and slide bar 227, the end winding support that slide block 226 passes long guiding hole 113 with idler assembly 21 is connected, and abut with the second end of elastic component 223, the first end of slide bar 227 is fixedly connected with slide block 226, second end of slide bar 227 passes through and stretches out the accommodation counterbore of the second mount pad 224, and elastic component 223 is set in outside slide bar 227.Slide block 226 and slide bar 227 relatively fixing, can move up and down with the flexible of elastic component 223.At the second mount pad 224 built with oilless metal 229, daily maintenance can be reduced.
The fore and aft motion of slide bar 227 pairs of elastic components 223 plays directional tagging, and can limit the radial displacement of elastic component 223, prevents elastic component 223 from contraction process, radial runout occurring and affecting the motion of idler assembly 21.In order to prevent elastic component 223 in elongation process, make to collide between drum shaft 212 and long guiding hole 113, the second end that slide bar 227 passes the accommodation counterbore of the second mount pad 224 is fixed with spacing back-up ring 228, spacing back-up ring 228 is positioned at the outside of the second mount pad 224, when drum shaft 212 moves in long guiding hole 113 because of the stretching, extension of elastic component 223, the stroke of restriction idler assembly 21, prevents from colliding between itself and long guiding hole 113 medial surface.
The lifting mechanism 50 of hoisting crane in use, holder rope tightening device of the present invention can play for the holder rope of lifting rope 30, tensioning and conductor rope effect, the lifting rope 30 of winding on idler assembly 21 is in tensioning situation all the time, and rope skipping and disorder cable phenomenon can not be produced on the fixed pulley 60 of the reel of lifting mechanism 50 and crane arm, extend the service life of lifting rope 30, improve the performance of lifting mechanism 50.
During work, all parts in holder rope tightening device is fitted together, then two equilibrium arm pull bar 40 one_to_one corresponding are located in the connecting bore of two the first mount pads 10, the position of holder rope tightening device is fixed on lifting rope 30 comes out to first fixed pulley 60 on crane arm middle part from the reel of lifting mechanism 50, lifting rope 30 enters on the upside of the idler assembly 21 in the left side shown in Fig. 2, draw on the downside of the idler assembly 21 on the right side shown in Fig. 2, form three sections of bending structures of "the" shape, thus by lifting rope 30, because of deadweight, sagging maximum holds up.
In conjunction with see the thrust direction from elastic component 223 of the direction of arrow in Fig. 5, figure suffered by idler assembly 21.Empty hook, namely when the suspension hook that lifting rope 30 connects does not hang thing, the thrust of the elastic component 223 that the idler assembly 21 in the left side shown in Fig. 5 is subject to is greater than lifting rope 30 applied pressure, through the support of the second mount pad 224, under the effect of elastic component 223, promote corresponding slide bar 227 and slide block 226, thrust is passed to the idler assembly 21 in left side, it is made to move up along the corresponding long guiding hole 113 on adapter plate 111, simultaneously, the thrust of the elastic component 223 suffered by idler assembly 21 on the right side shown in Fig. 5 is greater than the pressure of the lifting rope 30 that it is subject to, through the support of the second mount pad 224, under the effect of elastic component 223, promote corresponding slide bar 227 and slide block 226, thrust is passed to the idler assembly 21 on right side, it is made to move down along the corresponding long guiding hole 113 on adapter plate 111, increase the idler assembly 21 in left side and the spacing of the idler assembly 21 on right side, and then the distance of the contact increased between the idler assembly 21 in left side and lifting rope 30 and the contact between the idler assembly 21 on right side and lifting rope 30, tensioning is carried out to lifting rope 30.In this moving process, the angle of obliquity of lifting rope 30 pairs of idler assemblies 21 is more and more less, and the diametral load suffered by idler assembly 21 is increasing, but does not exceed the holding capacity of idler assembly 21 yet when diametral load is maximum, meets operating needs.
In conjunction with see the thrust direction from elastic component 223 of the direction of arrow in Fig. 6, figure suffered by idler assembly 21.Fully loaded, namely when the suspension hook that lifting rope 30 connects hangs thing, the pressure of the lifting rope 30 suffered by idler assembly 21 in the left side shown in Fig. 5 is greater than the thrust of elastic component 223, the idler assembly 21 in left side moves down along the corresponding long guiding hole 113 on adapter plate 111, the pressure of the lifting rope 30 suffered by idler assembly 21 on right side is greater than the thrust of elastic component 223, the idler assembly 21 on right side moves up along the corresponding long guiding hole 113 on adapter plate 111, progressively reduce left side idler assembly 21 and lifting rope 30 contact point and the distance between right side idler assembly 21 and lifting rope 30 contact point, tensioning is carried out to lifting rope 30.In this moving process, elastic component 223 plays buffer action, prevents lifting rope 30 from skipping rope and disorder cable on the reel of lifting mechanism 50; Meanwhile, in this moving process, the angle of obliquity of lifting rope 30 pairs of idler assemblies 21 is increasing, and the diametral load of idler assembly 21 is more and more less, to the stressed of idler assembly 21 and the life-span favourable; In addition, in this moving process, when the angle of obliquity of lifting rope 30 pairs of idler assemblies 21 is maximum, the drum shaft 212 of idler assembly 21 holds out against through slide block 226 and the second mount pad 224, whole pressure is born by the second mount pad 224, elastic component 223 no longer increases compressive force, enhances stability, extends the service life of elastic component 223.
Present invention also offers a kind of hoisting crane, comprise holder rope tightening device, lifting rope 30 and equilibrium arm pull bar 40, wherein, equilibrium arm pull bar 40 has two, holder rope tightening device is aforesaid holder rope tightening device, and two equilibrium arm pull bars 40 are located in the connecting bore of two the first mount pads 10 of holder rope tightening device correspondingly, the wiring cambered surface of lifting rope 30 pile warp idler assembly 21, by the radial motion of idler assembly 21, tensioning lifting rope 30.Here hoisting crane can be tower crane or swing crane
From above description, can find out, the above embodiments of the present invention achieve following technique effect: between two mount pads, connect idler assembly and drive with idler assembly holding down assembly of being connected, idler assembly has the wiring cambered surface extended along its axial direction, idler assembly, holding down assembly under driving and can moving relative to mount pad, plays the effect of tensioning lifting rope.Pulley of the prior art is replaced with idler assembly, the wiring cambered surface of idler assembly replaces the groove structure of pulley, the wipe contact area of lifting rope can be effectively reduced, and lifting rope in load-carrying process can on idler assembly Free-rolling, the different parts of the periphery wall of lifting rope is contacted with wiring cambered surface respectively, more slow down the friction between lifting rope and wiring cambered surface, thus reduce the wearing and tearing suffered by lifting rope, add service life.
Meanwhile, two mount pads be oppositely arranged arrange connecting bore respectively, by the integral installation of holder rope tightening device on the equilibrium arm pull bar of hoisting crane, the harmony of equilibrium arm entirety can be added.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a holder rope tightening device, is characterized in that, comprising:
Two the first mount pads (10) positioned opposite; And
Stretching device (20), be arranged between two described first mount pads (10), described stretching device (20) comprises idler assembly (21) and hold down assembly (22), described first mount pad (10) connects one to one with two respectively at the two ends of described idler assembly (21), described idler assembly (21) has the wiring cambered surface extended along described idler assembly (21) axis direction, described idler assembly (21) first mount pad (10) described relative to two can arrange with the lifting rope (30) of tensioning winding in described wiring cambered surface with moving radially, it is upper and drive with described idler assembly (21) and be connected that described hold down assembly (22) are arranged at described first mount pad (10).
2. holder rope tightening device according to claim 1, it is characterized in that, each described first mount pad (10) has long guiding hole (113) respectively, described long guiding hole (113) is arranged along the radial direction of described idler assembly (21), the two ends one_to_one corresponding of described idler assembly (21) to be located in the described long guiding hole (113) of two described first mount pads (10) and to arrange movingly along described long guiding hole (113), the side driving with the end of described idler assembly (21) that described hold down assembly (22) are arranged at described first mount pad (10) described idler assembly (21) is dorsad connected.
3. holder rope tightening device according to claim 2, is characterized in that,
The described long guiding hole (113) of each described first mount pad (10) has multiple, arranged in parallel between multiple described long guiding hole (113);
Described idler assembly (21) has multiple, multiple described idler assembly (21) is arranged with multiple described long guiding hole (113) one_to_one corresponding of each described first mount pad (10), the two ends of each described idler assembly (21) are located in the corresponding long guiding hole (113) of two described first mount pads (10) respectively, and the distance variableization ground between multiple described idler assembly (21) is arranged.
4. holder rope tightening device according to any one of claim 1 to 3, it is characterized in that, described idler assembly (21) comprising:
Drum shaft (212), two ends respectively first mount pad (10) one_to_one corresponding described with two are connected and first mount pad (10) described relative to two can be arranged with moving radially; And
Cylinder (211), is set on described drum shaft (212), and the outer peripheral face of described cylinder (211) forms described wiring cambered surface.
5. holder rope tightening device according to claim 4, it is characterized in that, described idler assembly (21) also comprises gear rope part (213), and described gear rope part (213) is individually fixed in the two ends of described cylinder (211).
6. holder according to any one of claim 1 to 3 rope tightening device, is characterized in that, described in hold down assembly (22) comprising:
Second mount pad (224), is fixed on described first mount pad (10);
Elastic component (223), the sense of motion telescopically along described idler assembly (21) is arranged, and the first end of described elastic component (223) abuts with described second mount pad (224); And
Slide assemblies (221), is connected with the end winding support of described idler assembly (21), and abuts with the second end of described elastic component (223).
7. holder rope tightening device according to claim 6, it is characterized in that, described second mount pad (224) has accommodation counterbore, the first end of described elastic component (223) is arranged in described accommodation counterbore, and the first end of described elastic component (223) has abutted packing ring (225) with between described accommodation counterbore.
8. holder rope tightening device according to claim 7, it is characterized in that, described slide assemblies (221) comprising:
Slide block (226), is connected with the end winding support of described idler assembly (21), and abuts with the second end of described elastic component (223); And
Slide bar (227), its first end is fixedly connected with described slide block (226), its second end is arranged through the described accommodation counterbore of described second mount pad (224), is arranged with described elastic component (223) outside described slide bar (227).
9. holder rope tightening device according to claim 8, it is characterized in that, described slide assemblies (221) also comprises spacing back-up ring (228), and described spacing back-up ring (228) is fixed on the second end of described slide bar (227) and is positioned at the outside of described second mount pad (224).
10. holder rope tightening device according to any one of claim 1 to 3, it is characterized in that, each described first mount pad (10) comprising:
Base (11), is connected with described idler assembly (21);
Wedge (12), is removably connected with the side of described base (11) described idler assembly (21) dorsad, forms connecting bore between the fitting surface of described wedge (12) and described base (11); And
Latch assembly (13), is locked with described base (11) and described wedge (12) and coordinates to be fixedly connected on installation foundation by the described tightening device of restricting that holds in the palm by described connecting bore.
11. holder rope tightening devices according to claim 10, is characterized in that,
Described base (11) comprises adapter plate (111) and erecting frame (112), described adapter plate (111) is connected with described idler assembly (21), and described erecting frame (112) is fixed on the side of described adapter plate (111) described idler assembly (21) dorsad;
Described wedge (12) is removably connected with described erecting frame (112), described wedge (12) has the mounting groove (121) of opening towards described erecting frame (112), to make to form described connecting bore between described wedge (12) and described erecting frame (112).
12. 1 kinds of hoisting cranes, comprise holder rope tightening device, lifting rope (30) and two equilibrium arm pull bars (40), it is characterized in that, the holder rope tightening device of described holder rope tightening device according to any one of claim 1 to 11, described holder rope tightening device two described first mount pads (10) respectively equilibrium arm pull bar (40) one_to_one corresponding described with two be connected, described lifting rope (30) winding is in the described wiring cambered surface of described idler assembly (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249881.6A CN103318791B (en) | 2013-06-21 | 2013-06-21 | Holder rope tightening device and there is its hoisting crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310249881.6A CN103318791B (en) | 2013-06-21 | 2013-06-21 | Holder rope tightening device and there is its hoisting crane |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103318791A CN103318791A (en) | 2013-09-25 |
| CN103318791B true CN103318791B (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310249881.6A Active CN103318791B (en) | 2013-06-21 | 2013-06-21 | Holder rope tightening device and there is its hoisting crane |
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| CN (1) | CN103318791B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP6231683B2 (en) | 2013-12-30 | 2017-11-15 | マニタウォック クレイン カンパニーズ， エルエルシーＭａｎｉｔｏｗｏｃ Ｃｒａｎｅ Ｃｏｍｐａｎｉｅｓ， Ｌｌｃ | Light and flexible tensioning system for construction machinery |
| CN107010554B (en) * | 2017-06-13 | 2023-07-25 | 上海振华重工(集团)股份有限公司 | Multifunctional rope arranging device |
| CN107235428B (en) * | 2017-07-09 | 2023-09-22 | 常州御发工矿设备有限公司 | Double main rope balancer for coal mine transportation system |
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|---|---|---|---|---|
| SU494339A1 (en) * | 1974-01-07 | 1975-12-05 | Челябинский Механический Завод | Crane boom safety device |
| SU914479A1 (en) * | 1980-06-16 | 1982-03-23 | Vnii Org Mekh Shakht | Rope tension limiting device |
| SU1594061A1 (en) * | 1987-09-15 | 1990-09-23 | Клайпедское Отделение Государственного Проектно-Конструкторского Института Рыбопромыслового Флота | Shipъs cargo-handling gear |
| KR20090070322A (en) * | 2007-12-27 | 2009-07-01 | 주식회사 포스코 | Rope tension detector |
| CN201952133U (en) * | 2010-09-08 | 2011-08-31 | 长沙中联重工科技发展股份有限公司 | Steel wire rope tensioning device of crane and crane |
| CN202321803U (en) * | 2011-11-30 | 2012-07-11 | 重庆起重机厂有限责任公司 | Steel wire rope guiding device |
| CN202508773U (en) * | 2012-04-05 | 2012-10-31 | 中联重科股份有限公司 | Rope-supporting device and crane with same |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10109686A (en) * | 1996-10-03 | 1998-04-28 | Mitsubishi Heavy Ind Ltd | Mooring rope tension monitoring device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU494339A1 (en) * | 1974-01-07 | 1975-12-05 | Челябинский Механический Завод | Crane boom safety device |
| SU914479A1 (en) * | 1980-06-16 | 1982-03-23 | Vnii Org Mekh Shakht | Rope tension limiting device |
| SU1594061A1 (en) * | 1987-09-15 | 1990-09-23 | Клайпедское Отделение Государственного Проектно-Конструкторского Института Рыбопромыслового Флота | Shipъs cargo-handling gear |
| KR20090070322A (en) * | 2007-12-27 | 2009-07-01 | 주식회사 포스코 | Rope tension detector |
| CN201952133U (en) * | 2010-09-08 | 2011-08-31 | 长沙中联重工科技发展股份有限公司 | Steel wire rope tensioning device of crane and crane |
| CN202321803U (en) * | 2011-11-30 | 2012-07-11 | 重庆起重机厂有限责任公司 | Steel wire rope guiding device |
| CN202508773U (en) * | 2012-04-05 | 2012-10-31 | 中联重科股份有限公司 | Rope-supporting device and crane with same |
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| CN103318791A (en) | 2013-09-25 |
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