CN106429838A - Wire rope tension device and method and engineering machine - Google Patents
Wire rope tension device and method and engineering machine Download PDFInfo
- Publication number
- CN106429838A CN106429838A CN201611112105.1A CN201611112105A CN106429838A CN 106429838 A CN106429838 A CN 106429838A CN 201611112105 A CN201611112105 A CN 201611112105A CN 106429838 A CN106429838 A CN 106429838A
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- China
- Prior art keywords
- wire rope
- steel wire
- stretching device
- tension
- reel
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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
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/10—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for preventing cable slack
- B66C13/105—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for preventing cable slack electrical
Abstract
The invention relates to a wire rope tension device and method and an engineering machine, wherein a wire rope tension mechanism comprises an applying portion and a tension part, the tension part is arranged in an extension path of a wire rope (2), and the applying part is connected to the tension part to provide the tension part with external force opposite to a winding direction of the wire rope (2) when winding load of the wire rope (2) is less than a preset value such that tension is provided for the wire rope (2). The tension device enables a wire rope to be neatly and tightly wound while the wire rope is under small winding load, the wire rope is prevented from a certain layer of wire rope penetrating in other layers during subsequent loading, mutual pressure and friction between the different layers of wire rope due to 'rope penetration' are eliminated, and the service life of the wire rope is prolonged accordingly; in addition vibrations generated during on-load unwinding of a wire rope can also be decreased to provide improved usage safety of the engineering machine.
Description
Technical field
The present invention relates to technical field of engineering machinery, more particularly, to a kind of steel wire rope stretching device, tensioning method and engineering
Machinery.
Background technology
Crane refers to vertical-lift within the specific limits and the hoisting machinery of horizontal carrying heavy goods, also known as crane.Lifting
The lifting mechanism of machine is the indispensable mechanism of hoisting heavy, mainly by driving means, actuating device, elevator, assembly pulley, load-engaging device
With brake unit composition.Elevator is that steel wire rope refers to many with the device of lifting heavy with reel lay winding wire ropes or chain
Or the flexible cable that multiply finer wire twists into, first stock is twisted by multilamellar steel wire, then centered on wire rope core, is coiled into by some stocks
Spiral helicine rope.
When crane does not need lift heavy, steel wire rope is withdrawn and is wrapped on reel by elevator and realize flake down, at present
There is problems that, the suspension hook of crane after empty hook lifting, if again from high-altitude down lift heavy thing, when weight weight reaches one
Definite value but it may appear that " cutting rope " (also known as " rope ") problem under non-overloading operating mode, that is, elevator cover wire rope get into following
In layer, or lower floor's steel wire rope is extruded in above layer.
When crane runs into " cutting rope " problem, steel wire rope can be caused to bear larger pressure and frictional force, easily cause steel
Cord fracture of wire or on a steel cord formation breach, can affect the life-span of steel wire rope after life-time service, and in follow-up high-altitude lift heavy
During decline, strong vibrations may be led to, cause car load to rock, or even the great lifting accidents such as overturning occur.
Content of the invention
The purpose of the present invention is to propose to a kind of steel wire rope stretching device, tensioning method and engineering machinery, can bear in rope closing
So that steel wire rope is neatly wound around after withdrawing when carrying less, avoid steel wire rope other in the follow-up steel wire rope incision with when carrying layer as far as possible
In layer.
For achieving the above object, first aspect present invention provides a kind of steel wire rope stretching device, including force application part and
Tension part, described tension part is located in the extension path of steel wire rope, and described force application part is connected with described tension part, uses
Apply to described tension part when the rope closing in described steel wire rope loads and is less than preset value and described steel wire rope withdraws direction phase
Anti- external force, to provide tensile force to described steel wire rope.
Further, described force application part is less than described tension part and described steel to the external force that described tension part provides
Stiction between cord.
Further, also include break-make part, described break-make part be located at described force application part and described tension part it
Between, for connecting when the rope closing load of described steel wire rope is less than preset value, so that described force application part can be to described tensioning
Part provides and withdraws external force in opposite direction with described steel wire rope.
Further, also include control parts, control described break-make part and/or described for loading according to described rope closing
The working condition of force application part.
Further, described force application part includes driver part, and described tension part includes rotatable parts, described steel wire rope
Bypass described rotatable parts setting, described driver part is used for applying to withdraw direction phase with described steel wire rope to described rotatable parts
Anti- moment, to provide tensile force to described steel wire rope.
Further, described rotatable parts include active reel, and described active reel is with described driver part operationally
Connect.
Further, described rotatable parts also include the driven reel rotating with described active reel, described active
Reel and described driven reel along the bearing of trend interval setting of described steel wire rope, described steel wire rope with described active reel and
Described driven reel is overall being wound.
Further, also include break-make part, described break-make part be located at described driver part and described active reel it
Between.
Further, at least two pressure rollers are also included, pressure roller described at least two is respectively provided at described active reel and institute
State the both sides up and down of steel wire rope between driven reel, for being limited in described steel wire rope in current wiring passage.
Further, the spacing between pressure roller described in upper and lower both sides be more than the upper and lower steel wire rope in corresponding position between away from
From.
Further, described driver part is hydraulic motor, and described hydraulic motor is connected with the hydraulic system in engineering machinery
Connect.
Further, also include overflow valve, described overflow valve is connected with described hydraulic motor, for setting described hydraulic pressure horse
The opposing torque providing to described rotatable parts is provided.
Further, the diameter parallel of described rotatable parts is in the setting surface of steel wire rope stretching device, and perpendicular to institute
State the bearing of trend of steel wire rope.
For achieving the above object, second aspect present invention provides a kind of engineering machinery, including described in above-described embodiment
Steel wire rope stretching device.
Further, described engineering machinery is crane.
Further, steel wire rope stretching device is located on arm support or the turntable of described crane.
For achieving the above object, third aspect present invention provides one kind and is based on the various embodiments described above steel wire rope stretching device
Tensioning method, including：
Rope closing load to described steel wire rope judges；
If the rope closing load of described steel wire rope is less than preset value, described force application part is controlled to carry to described tension part
For withdrawing external force in opposite direction with described steel wire rope, to provide tensile force to described steel wire rope.
Further, described steel wire rope stretching device includes break-make part, and described break-make part is located at described force application part
And described tension part between, when the rope closing judging described steel wire rope loads less than preset value, the described force of described control
Part provides the step withdrawing external force in opposite direction with described steel wire rope to specifically include to described tension part：
Described break-make part is controlled to connect；
Described force application part provides to described tension part and withdraws external force in opposite direction with described steel wire rope.
Based on technique scheme, the steel wire rope stretching device of the present invention, the extension path of steel wire rope arranges tensioning
Part, when the rope closing load of steel wire rope is less than preset value, force application part can apply to withdraw direction with steel wire rope to tension part
Contrary external force, to provide tensile force to steel wire rope.It is less that this kind of steel wire rope stretching device can make steel wire rope load in rope closing
When be neatly densely wound around, prevent in the other layers of steel wire rope incision when follow-up band carries layer for the steel wire rope, elimination is due to " cutting
Mutual pressure and frictional force between the different layers steel wire rope that rope " problem is brought, to improve the service life of steel wire rope；But also
The vibrations producing during rope belt placing rope can be reduced, to improve the safety in utilization of engineering machinery.
Brief description
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the part of the application, this
Bright schematic description and description is used for explaining the present invention, does not constitute inappropriate limitation of the present invention.In the accompanying drawings：
Fig. 1 is that the steel wire rope stretching device of the present invention is arranged on the structural representation on crane；
Fig. 2 is the structural representation of an embodiment of crane tensioner of the present invention；
Fig. 3 is the structural representation of active reel in Fig. 2；
Fig. 4 is the principle schematic of an embodiment of crane tensioner of the present invention；
Fig. 5 is the enlarged drawing of steel wire rope stretching device in Fig. 1.
Description of reference numerals
1- steel wire rope stretching device；2- steel wire rope；3- elevator；4- turntable；5- suspension hook；6- arm head assembly pulley；7-
Arm head leading block；8- arm support；11- active reel；12- hydraulic motor；13- pressure roller；14- driven reel；15- clutch
Device；16- reductor；17- bearing block；18- pedestal；81- basic arm；82- adjutage；151- oil circuit control.
Specific embodiment
The present invention described further below.In the following paragraphs, define the different aspect of embodiment in more detail.So
The each side limiting can be combined with any other one side or many aspects, not can be combined unless explicitly stated otherwise.Especially,
Be considered as preferred or favourable any feature can one or more with other be considered as preferred or favourable feature group
Close.
The term descriptions merely for convenience such as " first ", " second " occurring in the present invention, have same names to distinguish
Different building blocks, be not offered as successively or primary-slave relation.
In describing the invention it is to be understood that term " interior ", " outward ", " on ", D score, " left " and " right " etc. refer to
The orientation showing or position relationship are based on orientation shown in the drawings or position relationship, are for only for ease of the description present invention, and not
Be instruction or hint indication device must have specific orientation, with specific azimuth configuration and operation, be not therefore understood that
For limiting the scope of the invention.
Inventors noted that the crane of prior art rises under operating mode in empty hook, steel wire rope is on being wrapped in reel
During in addition to the gravity by steel wire rope and suspension hook, be not subject to other any pulling force, lead to the steel wire rope being wrapped on reel
Cloth loose it is impossible to press layer proper alignment.Thus, when follow-up band carries and declines, steel wire rope is under the pulling force effect of weight for crane
Can extend, diameter can reduce simultaneously, at this moment steel wire rope will be cut between the adjacent steel cord of lower floor, and the steel wire rope of lower floor does not have
The strong pressure withstanding tense wire rope, will make by, in the other layer of steel wire rope incision of weight pulling force, leading to levels
Frictional force is produced, that is, middle level steel wire rope clamped by upper strata steel cable and reel under pressure, produces larger pressure between steel wire rope
Or frictional force, thereby result in the life-span decline of steel wire rope.Next, when band carries and declines, the steel wire rope of incision is directly from incision layer
Jump to the superiors, the impact thus bringing makes car load shake, and there is the hidden danger of overturning.
In order to improve service life similar to steel wire rope in the engineering machinery such as crane it should be ensured that crane is in empty hook
Rise steel wire rope under operating mode to remain to neatly densely arrange, to reduce the stress between each layer steel wire rope being wrapped on reel.
According to this thinking, first, the invention provides a kind of steel wire rope stretching device, this kind of steel wire rope stretching device not only can be answered
It is also possible to apply in the engineering machinery that other carries luffing arm support and has lifting functions in crane.It is given below
Embodiment mainly so that steel wire rope stretching device is applied in crane as a example illustrated.
As shown in figure 1, crane is provided with turntable 4, it is arranged on turntable 4, the root position of arm support 8 arm support 8 amplitude-variable
Install the elevator 3 for controlling steel wire rope 2 folding and unfolding, the arm head of arm support 8 is provided with arm head leading block 7 and arm head assembly pulley 6.Steel
Cord tensioner 1 may be provided on turntable 4, the basic arm 81 of arm support 8 or arm head.One end of steel wire rope 2 pulls out from elevator 3
Afterwards, by steel wire rope stretching device 1, and bypass the other end and suspension hook 5 company after arm head assembly pulley 6 and arm head leading block 7 successively
Connect.
As shown in Figures 1 to 5, in one embodiment of the invention, steel wire rope stretching device 1 includes：Force application part and
Tension part, tension part is located in the extension path of steel wire rope 2, and force application part is connected with tension part, in steel wire rope 2
Rope closing load less than preset value when to tension part apply with steel wire rope 2 withdraw external force in opposite direction, to carry to steel wire rope 2
For tensile force.Wherein, rope closing load had both included sky hook rope closing less than preset value, also includes steel wire rope 2 and is subject to less outer load
Situation, preset value can find empirical value in crane practical work process, is to ensure that steel wire rope 2 is neatly wound around when withdrawing
The load of minimum rope closing.
Tension part may be provided on arm support 8 or the turntable 4 of crane, and Fig. 1 gives the base that tension part is located at arm support 8
Situation on this arm 81, on basic arm 81, space is more abundant, is not disturbed by other parts, and with elevator 3 apart from relatively
Closely, preferable tension effects can be reached.
This kind of steel wire rope stretching device 1 can make steel wire rope 2 in the work of external force when the rope closing load of steel wire rope 2 is less
With under be in tight state and carry out rope closing, to ensure that steel wire rope 2 is neatly densely wrapped in elevator 3 outer surface, prevent from subsequently holding
Row lift heavy operation make steel wire rope 2 extend under the pulling force effect of weight lead to diameter reduce, thus avoiding certain layer of steel wire rope 2 to cut
Enter in other layers, eliminate the mutual pressure producing between the different layers steel wire rope 2 bringing due to " cutting rope " problem and frictional force,
Avoid breach is occurred on steel wire rope 2 or disconnected rope phenomenon occurs, to improve the service life of steel wire rope 2.And, steel wire rope 2 is whole
The neat vibrations that densely winding produces when can also reduce steel wire rope 2 with placing rope, improve the job stabilization of crane, thus carrying
The safety in utilization of the engineering machinery such as high crane.In addition, this device is easy to use, do not affect machine system, can be existing
Directly reequiped in the engineering machinery such as crane and applied.
Preferably, force application part is less than the static friction between tension part and steel wire rope 2 to the external force that tension part provides
Power, keeps geo-stationary between tension part and steel wire rope 2.So preferable tension effects can be reached, make force application part to
The external force that tension part provides is completely used for producing tensile force, it is to avoid steel wire rope 2 is offset with the relative slip that tension part produces
Partial tension power.
With reference to Fig. 4, the steel wire rope stretching device 1 of the present invention may also include break-make part, and break-make part is located at force application part
And tension part between, for connecting when the rope closing load of steel wire rope 2 is less than preset value, so that force application part can be to tensioning
Part provides and withdraws external force in opposite direction with steel wire rope 2；And disconnect when the rope closing load of steel wire rope 2 is not less than preset value,
To cut off the path to tension part power transmission for the force application part, do not provide tensile force to steel wire rope 2.Preferably, as shown in figure 4, leading to
Disconnected part is clutch 15, and the working condition of clutch 15 can be controlled by the signal of telecommunication or oil circuit control.
Further, the steel wire rope stretching device 1 of the present invention may also include control parts, for according to rope closing load automatically
Control the break-make working condition of break-make part and/or the working condition of force application part.By arranging control parts, being capable of basis
Operating mode automatically controls the size choosing whether to enable steel wire rope stretching device 1 and apply tensile force for steel wire rope 2.Preferably,
Control parts are controller etc., both can be separately provided controller it is also possible to be integrated in the control realizing specific function on crane
In device processed.
In one embodiment, tension part can be clamped on the extension path of steel wire rope 2, force application part directly to
Tight part applies to withdraw external force in opposite direction with steel wire rope 2, increases the effect of tensile force to be reached for steel wire rope 2.
In another kind of embodiment, Fig. 2 is the A direction view of Fig. 1, and Fig. 4 provides the fundamental diagram of steel wire rope stretching device.
Force application part includes driver part, and tension part includes rotatable parts, and steel wire rope 2 bypasses rotatable parts setting, that is, be wrapped in and turn
On dynamic component, steel wire rope 2 withdraws along arrow B under the rotation of elevator 3, and driver part is used for applying and steel wire to rotatable parts
Rope 2 withdraws moment (as the direction of arrow C indication) in opposite direction, to provide tensile force to steel wire rope 2.This embodiment is not subject to open
The restriction of tight part movement travel, is more beneficial for applying tensile force additionally it is possible to save the volume of steel wire rope stretching device 1.
Wherein, rotatable parts include active reel 11, and active reel 11 is operably connected with driver part, steel wire rope 2
At least it is wound around a circle when by active reel 11.Break-make part can be set between active reel 11 and driver part, to select
Whether external force is applied to active reel 11 by driver part.It is operably connected including being directly connected to, connected by reductor
Or connected by clutch.Driver part may be selected hydraulic motor 12 or motor etc..As shown in figure 4, hydraulic motor 12 and master
Movable reel 11 connects, and for driving active reel 11 to rotate, can be provided with clutch 15 between hydraulic motor 12 and active reel 11
And/or reductor 16, clutch 15 controls on off operating mode by oil circuit control 151, and reductor 16 is located inside active reel 11.
On this basis, rotatable parts may also include the driven reel 14 rotating with active reel 11, active reel
11 and driven reel 14 along steel wire rope 2 bearing of trend interval setting, steel wire rope 2 with active reel 11 and driven reel 14 is
Entirety is wound, and that is, the winding center axes of steel wire rope 2 are located between active reel 11 and driven reel 14.It is connected to arm support 8
The steel wire rope 2 of arm head position is connected with elevator 3 after sequentially passing through active reel 11 and driven reel 14.This embodiment passes through interval
Two cylinders of setting, being equivalent to the volume increasing rotatable parts, thus increasing the winding radius of steel wire rope 2, can reduce
The bending degree of steel wire rope 2, to improve the service life of steel wire rope 2.
According to the demand of tensile force, with the increase being wound around the number of turns, tensile force exponentially increases again, thus can make steel wire rope
The suitable number of turns of 2 windings on active reel 11 and driven reel 14, can reach preferably tension effects, also can keep away as far as possible
Exempt to affect service life and the rope closing efficiency of steel wire rope 2.Preferably, steel wire rope 2 can be wound around 3 to 5 circles.
In specific structure setting, referring to figs. 2 and 3 steel wire rope stretching device 1 includes pedestal 18, active reel 11
Can be supported on pedestal 18 by bearing block 17 with the end of driven reel 14, clutch 15 and reductor 16 are located at active reel
11 one end, reductor 16 is located inside active reel 11.The diameter parallel of active reel 11 and driven reel 14 is in setting steel
Arm support 8 surface of cord tensioner 1, and the bearing of trend perpendicular to steel wire rope 2, to reduce steel wire rope stretching device 1 in arm
The occupancy height on frame 8 surface, and so that steel wire rope 2 is tried one's best arm support 8 surface, to improve its safety in utilization.As extension, main
The axis of movable reel 11 and driven reel 14 also can be arranged perpendicular to arm support 8 surface, and the bearing of trend interval along steel wire rope 2
Setting.
Fig. 4 gives the embodiment using hydraulic motor 12 as driver part, and hydraulic motor 12 can be connected directly between
In hydraulic system on heavy-duty machine, existing hydraulic system on crane can be made full use of, extra dynamical system need not be increased,
Structure is simple, and cost is relatively low.Further, hydraulic motor 12 can connect overflow valve, for setting hydraulic motor 12 to rotation section
The opposing torque that part provides.
Preferably, the spill pressure of overflow valve is set smaller than the stiction between steel wire rope 2 and active reel 11.
The operation principle of steel wire rope stretching device 1 shown in Fig. 4 is：When crane sky hook rope closing or rope closing load are less, connect clutch
The oil circuit control 151 of device 15 makes clutch 15 adhesive.Steel wire rope 2 along arrow B withdrawal during, active reel 11 along
The withdrawal direction of steel wire rope 2 rotates, and hydraulic motor 12 rotates (with reference to Fig. 2) all along arrow C, due to external overflow valve,
Hydraulic motor 12 can be made to provide a less lasting opposing torque to active reel 11, so that steel wire rope 2 and actively volume
Produce frictional force between cylinder 11, and the rope of this frictional force is more than the reverse of hydraulic motor 12 overflow generation to component tensile force
Power (arrow D direction in Fig. 4), so steel wire rope 2 is during by elevator 3 along arrow B withdrawal, hydraulic motor 12 1
Straight rotation, steel wire rope 2 is wound around on two reels relatively, a winding, another release, and steel wire rope 2 and active reel
Geo-stationary is kept between 11 and driven reel 14.When not needing to enable steel wire rope stretching device 1, the control of cut-out clutch 15
Liquefaction road 151 makes hydraulic motor 12 and active reel 11 separate, and now steel wire rope stretching device 1 brings the frictional force of steel wire rope 2
Less force of rolling friction only between reel and bearing block 17, does not affect crane and normally puts rope and band load when exceeding preset value
Rope closing.In Fig. 2 the steering of the hydraulic motor 12 of arrow C indication be only limitted to reductor 16 input turn to export steering identical
Situation.
On the basis of above-described embodiment, as shown in Figure 2 and Figure 5, at least two pressure rollers 13, at least two pressure rollers are also included
13 both sides up and down being respectively provided at steel wire rope 2 between active reel 11 and driven reel 14, for being limited in currently steel wire rope 2
Wiring passage in it is ensured that steel wire rope 2 neatly rotates in the grooving of reel.One end of pressure roller 13 can be fixed on pedestal 18,
And the diameter parallel setting with active reel 11 and driven reel 14.Preferably, the spacing between upper and lower both sides pressure roller 13 is more than
The distance between upper and lower steel wire rope in corresponding position 2, to avoid pressure roller 13 for the extra resistance of the withdrawal increase of steel wire rope 2.
Next, present invention also offers a kind of engineering machinery, including the steel wire rope stretching device described in the various embodiments described above
1, any with luffing arm support and there are lifting functions engineering machinery all within protection scope of the present invention.By setting
The steel wire rope stretching device 1 of the present invention, can be when the rope closing load of steel wire rope 2 be less, and the state making steel wire rope 2 to tighten is whole
Densely it is wound around together, avoids certain layer of steel wire rope 2 to cut in other layers as far as possible, reduce the active force between each layer steel wire rope 2, with
Improve the service life of steel wire rope 2, and steel wire rope 2 can also be reduced and subsequently put, with load high-altitude, the vibrations producing during rope, to improve
Engineer machinery operation safety.
Preferably, engineering machinery is crane, and steel wire rope stretching device 1 may be provided in arm support 8 (the such as basic arm of crane
81 or arm head) or turntable 4 on.
Finally, present invention also offers a kind of tensioning method based on above-described embodiment steel wire rope stretching device, at one
In embodiment, comprise the steps：Rope closing load to steel wire rope 2 judges；If the rope closing load of steel wire rope 2 is less than pre-
If value then controls force application part to provide to tension part withdraws external force in opposite direction with steel wire rope 2, opened with providing to steel wire rope 2
Clamp force.
In another embodiment, be provided with break-make part in steel wire rope stretching device 1, break-make part be located at force application part with
Between tension part, when the rope closing judging steel wire rope 2 loads less than preset value, force application part is controlled to provide to tension part
The step withdrawing external force in opposite direction with steel wire rope 2 specifically includes：Break-make part is controlled to connect；Force application part is to tension part
There is provided and withdraw external force in opposite direction with steel wire rope 2.For the structure shown in Fig. 5, break-make part is clutch 15, can be by control
Liquefaction road 151 controls the break-make working condition of clutch 15.
Above detailed Jie is carried out to a kind of steel wire rope stretching device provided by the present invention, tensioning method and engineering machinery
Continue, the content in these three themes can mutually be used for reference.Specific embodiment used herein is to the principle of the present invention and reality
The mode of applying is set forth, and the explanation of above example is only intended to help and understands the method for the present invention and its core concept.Should
When pointing out, for those skilled in the art, under the premise without departing from the principles of the invention, can also be to this
Invention carries out some improvement and modifies, and these improve and modify and also fall in the protection domain of the claims in the present invention.
Claims (18)
1. a kind of steel wire rope stretching device is it is characterised in that include：Force application part and tension part, described tension part is located at
In the extension path of steel wire rope (2), described force application part is connected with described tension part, for the receipts in described steel wire rope (2)
Rope load applies to withdraw external force in opposite direction with described steel wire rope (2) to described tension part less than during preset value, with to institute
Stating steel wire rope (2) provides tensile force.
2. steel wire rope stretching device according to claim 1 is it is characterised in that described force application part is to described tension part
The external force providing is less than the stiction between described tension part and described steel wire rope (2).
3. steel wire rope stretching device according to claim 1 is it is characterised in that also include break-make part, described break-make portion
Part is located between described force application part and described tension part, is less than preset value for the rope closing load in described steel wire rope (2)
When connect so that described force application part can to described tension part provide with described steel wire rope (2) withdraw in opposite direction outer
Power.
4. steel wire rope stretching device according to claim 3 is it is characterised in that also include control parts, for according to institute
State the working condition that rope closing load controls described break-make part and/or described force application part.
5. steel wire rope stretching device according to claim 1 is it is characterised in that described force application part includes driver part,
Described tension part includes rotatable parts, and described steel wire rope (2) bypasses the setting of described rotatable parts, described driver part be used for
Described rotatable parts apply to withdraw moment in opposite direction with described steel wire rope (2), to provide tensioning to described steel wire rope (2)
Power.
6. steel wire rope stretching device according to claim 5 is it is characterised in that described rotatable parts include active reel
(11), described active reel (11) is operably connected with described driver part.
7. steel wire rope stretching device according to claim 6 is it is characterised in that described rotatable parts are also included with described master
The driven reel (14) that movable reel (11) rotates together, described active reel (11) and described driven reel are along described steel wire rope
(2) bearing of trend interval setting, described steel wire rope (2) is overall with described active reel (11) and described driven reel (14)
It is wound.
8. the steel wire rope stretching device according to claim 6 or 7 is it is characterised in that also include break-make part, described break-make
Part is located between described driver part and described active reel (11).
9. steel wire rope stretching device according to claim 7 is it is characterised in that also include at least two pressure rollers (13), extremely
Few two described pressure rollers (13) are respectively provided at the upper of steel wire rope (2) between described active reel (11) and described driven reel (14)
Lower both sides, for being limited in described steel wire rope (2) in current wiring passage.
10. steel wire rope stretching device according to claim 9 is it is characterised in that described in upper and lower both sides between pressure roller (13)
Spacing be more than the distance between the upper and lower steel wire rope in corresponding position (2).
11. steel wire rope stretching devices according to claim 5 are it is characterised in that described driver part is hydraulic motor
(12), described hydraulic motor (12) is connected with the hydraulic system in engineering machinery.
12. steel wire rope stretching devices according to claim 11 it is characterised in that also including overflow valve, described overflow valve
It is connected with described hydraulic motor (12), for setting the opposing torque that described hydraulic motor (12) provides to described rotatable parts.
13. steel wire rope stretching devices according to claim 5 it is characterised in that described rotatable parts diameter parallel in
The setting surface of steel wire rope stretching device (1), and the bearing of trend perpendicular to described steel wire rope (2).
A kind of 14. engineering machinery are it is characterised in that include the arbitrary described steel wire rope stretching device (1) of claim 1～13.
15. engineering machinery according to claim 14 are it is characterised in that described engineering machinery is crane.
16. engineering machinery according to claim 15 are it is characterised in that steel wire rope stretching device (1) is located at described lifting
On the arm support (8) of machine or turntable (4).
A kind of 17. tensioning methods based on the arbitrary described steel wire rope stretching device of claim 1～13 are it is characterised in that wrap
Include：
Rope closing load to described steel wire rope (2) judges；
If the rope closing load of described steel wire rope (2) is less than preset value, described force application part is controlled to provide to described tension part
Withdraw external force in opposite direction with described steel wire rope (2), to provide tensile force to described steel wire rope (2).
18. steel wire tensioning methods according to claim 17 are it is characterised in that described steel wire rope stretching device (1) wraps
Include break-make part, described break-make part is located between described force application part and described tension part, is judging described steel wire rope
(2), when rope closing load is less than preset value, the described force application part of described control provides and described steel wire rope to described tension part
(2) step withdrawing external force in opposite direction specifically includes：
Described break-make part is controlled to connect；
Described force application part provides to described tension part and withdraws external force in opposite direction with described steel wire rope (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112105.1A CN106429838A (en) | 2016-12-07 | 2016-12-07 | Wire rope tension device and method and engineering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611112105.1A CN106429838A (en) | 2016-12-07 | 2016-12-07 | Wire rope tension device and method and engineering machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106429838A true CN106429838A (en) | 2017-02-22 |
Family
ID=58216134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611112105.1A Pending CN106429838A (en) | 2016-12-07 | 2016-12-07 | Wire rope tension device and method and engineering machine |
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Cited By (3)
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| CN108840264A (en) * | 2018-08-28 | 2018-11-20 | 徐州重型机械有限公司 | Wirerope pretightning force loading method and system |
| CN110127302A (en) * | 2019-05-20 | 2019-08-16 | 北京百正创源科技有限公司 | Belt conveyor and its operation method |
| CN110329937A (en) * | 2019-07-10 | 2019-10-15 | 中联重科股份有限公司 | Device and method and engineering machinery for auxiliary hoist elevator row's rope |
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| CN110329937A (en) * | 2019-07-10 | 2019-10-15 | 中联重科股份有限公司 | Device and method and engineering machinery for auxiliary hoist elevator row's rope |
| CN110329937B (en) * | 2019-07-10 | 2020-11-06 | 中联重科股份有限公司 | Device and method for assisting hoisting and rope arranging of crane and engineering machine |
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Application publication date: 20170222 |