CN204702447U - The anti-hypsokinesis structure of arm tower crane - Google Patents
The anti-hypsokinesis structure of arm tower crane Download PDFInfo
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- CN204702447U CN204702447U CN201420765425.7U CN201420765425U CN204702447U CN 204702447 U CN204702447 U CN 204702447U CN 201420765425 U CN201420765425 U CN 201420765425U CN 204702447 U CN204702447 U CN 204702447U
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- guide rod
- otic placode
- inner guide
- control lever
- outer guide
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Abstract
The utility model discloses the anti-hypsokinesis structure of a kind of arm tower crane, comprise radial buffer (1), inner guide (2), outer guide rod (4), spring (3), control lever (6), range limiter (10) and range limiter base (9), radial buffer is arranged on the end of inner guide one end; The other end of inner guide inserts in outer guide rod, and can move reciprocatingly in guide rod outside; Spring housing on the face of cylinder of inner guide, and can carry out compressing or resetting with the motion of inner guide; Control lever is arranged on the outside of inner guide and outer guide rod, and can move reciprocatingly with inner guide; Range limiter is arranged on range limiter base, and the shake-up part of range limiter is corresponding with control lever to be arranged.The utility model can prevent crane arm from tumbling backward in amplitude changing process, solves the problem that there is rigid shock between crane arm and tower top, makes crane arm hypsokinesis angle more easily control simultaneously, safer.
Description
Technical field
The utility model relates to a kind of supplementary structure for arm tower crane, and specifically the anti-hypsokinesis structure of a kind of arm tower crane, belongs to arm tower crane technical field.
Background technology
The crane arm of arm tower crane can from level attitude luffing to close to vertical position, and when crane arm is horizontal, its amplitude is maximum, and when crane arm luffing is close to vertical position, its amplitude is minimum.During work, due to the effect that inertia loading and wind carry, crane arm may produce the larger impact of rigidity with tower top, or tumbles backward in amplitude changing process.At present, in order to prevent crane arm from tumbling backward in amplitude changing process, and solve the problem that there is rigid shock between crane arm and tower top tower top, anti-hypsokinesis structure is generally installed in arm tower crane.
Existing arm tower crane anti-hypsokinesis structure is generally the anti-hypsokinesis structure of mechanical spring type, as shown in Figure 1, this anti-hypsokinesis structure is primarily of outer guide rod 4, assign into the inner guide 2 in outer guide rod 4, the radial buffer being arranged on inner guide 2 end and the spring 3 be enclosed within inner guide 2, can by this anti-hypsokinesis structure installment on the A cabinet frame of arm tower crane, when the crane arm of arm tower crane faces upward maximum angle, anti-hypsokinesis bearing on crane arm touches the radial buffer 1 this anti-hypsokinesis structure being positioned at inner guide 2 end, and the direction of oppressing the outside guide rod 4 of inner guide 2 is moved, spring 3 simultaneously on inner guide 2 is compressed gradually in inner guide 2 moving process, its elasticity by self plays buffer action, and stop the further hypsokinesis of crane arm, thus make crane arm reach buffering and finally stop, and then can prevent crane arm from tumbling backward in amplitude changing process, can avoid, between crane arm and tower top, rigid shock occurs simultaneously.But in actual mechanical process, because spring exists fatigue problem, cause crane arm hypsokinesis angle to exceed setting value sometimes, cause hypsokinesis Angle ambiguity to be forbidden, bring potential safety hazard to arm tower crane.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of arm tower crane anti-hypsokinesis structure, not only can prevent crane arm from tumbling backward in amplitude changing process, solve the problem that there is rigid shock between crane arm and tower top, and degree of tilt precise control thereafter, reliability is high.
To achieve these goals, the anti-hypsokinesis structure of a kind of arm tower crane that the utility model adopts, comprise radial buffer, inner guide, outer guide rod and spring, radial buffer is arranged on the end of inner guide one end; The other end of inner guide inserts in outer guide rod, and can move reciprocatingly in guide rod outside; Spring housing on the face of cylinder of inner guide, and can carry out compressing or resetting with the motion of inner guide; Also comprise control lever, range limiter and range limiter base; Described control lever is arranged on the outside of inner guide and outer guide rod, and can move reciprocatingly with inner guide; Described range limiter is arranged on the range limiter base that is positioned on outer guide rod, and the shake-up part of range limiter is corresponding with control lever to be arranged.
Described inner guide is installed with otic placode I, the end winding support of described outer guide rod is provided with outer guide rod end plate, and described outer guide rod is installed with otic placode II; Described spring is between otic placode I and outer guide rod end plate; Described otic placode I, outer guide rod end plate and otic placode II have the lug plate holes of formed objects; One end of described control lever is fixed on otic placode I, and the other end through the lug plate holes on outer guide rod end plate and otic placode II, and slides in the direction.
Described control lever is provided with nut on outside the free end of otic placode II.
Described control lever is fixed on otic placode I by nut, and nut is arranged on the both sides of otic placode I.
Described otic placode I is welded on inner guide, and otic placode II is welded on outer guide rod.
Compared with prior art, the utility model not only can prevent crane arm from tumbling backward in amplitude changing process, solve the problem that there is rigid shock between crane arm and tower top, but also can by the setting of control lever and range limiter, solve because mechanical type spring exists fatigue problem, the elasticity of simple dependence mechanical type spring cushions and stops the further hypsokinesis of crane arm that crane arm hypsokinesis angle may be made to exceed setting value and cause casterangle control bad, brings the problem of potential safety hazard to arm tower crane; The application of range limiter in the anti-back inclining mechanism of arm tower crane, ensure that when the free end that crane arm hypsokinesis angle reaches maxim or control lever contacts with the touch switch formed on limiting device, cut off luffing mechanism power supply and stop action, crane arm hypsokinesis angle is more easily controlled, safer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the anti-hypsokinesis structure of existing arm tower crane;
Fig. 2 is structural representation of the present utility model.
In figure: 1, radial buffer, 2, inner guide, 3, spring, 4, outer guide rod, 5, otic placode I, 6, control lever, 7, outer guide rod end plate, 8, otic placode II, 9, range limiter base, 10, range limiter.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 2, the anti-hypsokinesis structure of a kind of arm tower crane, comprises radial buffer 1, inner guide 2, outer guide rod 4, spring 3, control lever 6, range limiter 10 and range limiter base 9; , radial buffer 1 is arranged on the end of inner guide 2 one end; The other end of inner guide 2 inserts in outer guide rod 4, and can move reciprocatingly in guide rod 4 outside; Spring 3 is enclosed within the face of cylinder of inner guide 2, and can carry out compressing or resetting with the motion of inner guide 2; Described control lever 6 is arranged on the outside of inner guide 2 and outer guide rod 4, and can move reciprocatingly with inner guide 2; Described range limiter 10 is arranged on the range limiter base 9 that is positioned on outer guide rod 4, and the shake-up part of range limiter 10 is corresponding with control lever 6 to be arranged.
During use, can by this anti-hypsokinesis structure installment on the A cabinet frame of arm tower crane, when the crane arm of arm tower crane faces upward maximum angle, on the one hand, anti-hypsokinesis bearing on crane arm touches the radial buffer 1 being positioned at inner guide 2 end on anti-squat system, and oppress the direction Compress Spring 3 of the outside guide rod 4 of inner guide 2, spring 3 will be played buffer action by the elasticity by self during compression, and stop the further hypsokinesis of crane arm, thus make crane arm reach buffering and finally stop, and then can prevent crane arm from tumbling backward in amplitude changing process, can avoid, between crane arm and tower top tower top, rigid shock occurs simultaneously, on the other hand, along with the direction motion of the outside guide rod 4 of inner guide 2, control lever 6 can inner guide 2 drive next in the same way range limiter 10 direction slide, when the free end of control lever 6 contacts with the touch switch on range limiter 10, luffing mechanism power-off will be caused and stop action.Generally speaking, in crane arm back recline, be not only subject to the protective effect of mechanical spring, be subject to the protection of range limiter simultaneously, crane arm hypsokinesis angle is more easily controlled, and reliability is higher, safer.
Described inner guide 2 is installed with otic placode I5, and the end winding support of described outer guide rod 4 is provided with outer guide rod end plate 7, and described outer guide rod 4 is installed with otic placode II8; Described spring 3 is between otic placode I5 and outer guide rod end plate 7; Described otic placode I5, outer guide rod end plate 7 and otic placode II8 have the lug plate holes of formed objects; One end of described control lever 6 is fixed on otic placode I 5, and the other end through the lug plate holes on outer guide rod end plate 7 and otic placode II 8, and slides in the direction.By the setting of otic placode I5, outer guide rod end plate 7, otic placode II8, control lever 6 can be made to slide to being arranged on the direction being positioned at the range limiter 10 on control lever motion path outside outer guide rod 4 with inner guide 2, and the movement travel of spring 3 is consistent with the movement travel of control lever 6, can avoid more exactly occurring that crane arm hypsokinesis angle exceeds the situation of setting value, thereafter degree of tilt controls more accurate, and safety is higher.
Because of inner guide 2 and spring 3 reset time, due to reasons such as inertia, easily there is the situation that spring 3 stretches to the right, now, if the length of control lever 6 falls short of, easily cause the situation that control lever 6 free end falls down on the right side of otic placode II 8, in order to ensure that it can normally work, need artificial again control lever 6 to be inserted in otic placode II 8, troublesome poeration.In order to address this problem, the length of control lever 6 can be increased, also on outside the free end of otic placode II 8, nut can be installed at described control lever 6, nut the movement travel that can limit control lever 6 is further set, guarantee that hypsokinesis Angle ambiguity is more accurate, safety is higher.
Described control lever 6 is fixed on otic placode I 5 by nut, and nut is arranged on the both sides of otic placode I 5, and this fixed form is simpler, dismounting of being more convenient for.
Described otic placode I 5 is welded on inner guide 2, and otic placode II 8 is welded on outer guide rod 4, and the mode of welding is more firm than other connection modes such as bolts.
From said structure, the utility model not only can prevent crane arm from tumbling backward in amplitude changing process, solve the problem that there is rigid shock between crane arm and tower top, but also can by the setting of control lever and range limiter, solve because mechanical type spring exists fatigue problem, the elasticity of simple dependence mechanical type spring cushions and stops the further hypsokinesis of crane arm that crane arm hypsokinesis angle may be made to exceed setting value and cause casterangle control bad, brings the problem of potential safety hazard to arm tower crane; The application of range limiter in the anti-back inclining mechanism of arm tower crane, ensure that when the free end that crane arm hypsokinesis angle reaches maxim or control lever contacts with the touch switch formed on limiting device, cut off luffing mechanism power supply and stop action, crane arm hypsokinesis angle is more easily controlled, safer.
Claims (4)
1. the anti-hypsokinesis structure of arm tower crane, comprise radial buffer (1), inner guide (2), outer guide rod (4) and spring (3), radial buffer (1) is arranged on the end of inner guide (2) one end; The other end of inner guide (2) inserts in outer guide rod (4), and can move reciprocatingly in guide rod (4) outside; Spring (3) is enclosed within the face of cylinder of inner guide (2), and can carry out compressing or resetting with the motion of inner guide (2); It is characterized in that, also comprise control lever (6), range limiter (10) and range limiter base (9); Described control lever (6) is arranged on the outside of inner guide (2) and outer guide rod (4), and can move reciprocatingly with inner guide (2); Described range limiter (10) is arranged on the range limiter base (9) that is positioned on outer guide rod (4), and the shake-up part of range limiter (10) is corresponding with control lever (6) to be arranged; Described inner guide (2) is installed with otic placode I (5), the end winding support of described outer guide rod (4) is provided with outer guide rod end plate (7), and described outer guide rod (4) is installed with otic placode II (8); Described spring (3) is positioned between otic placode I (5) and outer guide rod end plate (7); Described otic placode I (5), outer guide rod end plate (7) and otic placode II (8) have the lug plate holes of formed objects; One end of described control lever (6) is fixed on otic placode I (5), and the other end through the lug plate holes on outer guide rod end plate (7) and otic placode II (8), and slides in the direction.
2. the anti-hypsokinesis structure of a kind of arm tower crane according to claim 1, is characterized in that, described control lever (6) is provided with nut on outside the free end of otic placode II (8).
3. the anti-hypsokinesis structure of a kind of arm tower crane according to claim 1 and 2, is characterized in that, described control lever (6) is fixed on otic placode I (5) by nut, and nut is arranged on the both sides of otic placode I (5).
4. the anti-hypsokinesis structure of a kind of arm tower crane according to claim 1 and 2, is characterized in that, described otic placode I (5) is welded on inner guide (2), and otic placode II (8) is welded on outer guide rod (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765425.7U CN204702447U (en) | 2014-12-08 | 2014-12-08 | The anti-hypsokinesis structure of arm tower crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420765425.7U CN204702447U (en) | 2014-12-08 | 2014-12-08 | The anti-hypsokinesis structure of arm tower crane |
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| CN204702447U true CN204702447U (en) | 2015-10-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444874A (en) * | 2014-12-08 | 2015-03-25 | 徐州建机工程机械有限公司 | Anti-back-tipping structure of movable-arm tower crane |
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2014
- 2014-12-08 CN CN201420765425.7U patent/CN204702447U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444874A (en) * | 2014-12-08 | 2015-03-25 | 徐州建机工程机械有限公司 | Anti-back-tipping structure of movable-arm tower crane |
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