CN204897256U - Tower machine floating roller rolling device for climbing frame - Google Patents
Tower machine floating roller rolling device for climbing frame Download PDFInfo
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- CN204897256U CN204897256U CN201520665484.1U CN201520665484U CN204897256U CN 204897256 U CN204897256 U CN 204897256U CN 201520665484 U CN201520665484 U CN 201520665484U CN 204897256 U CN204897256 U CN 204897256U
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- climbing frame
- roller
- turning rolls
- tower machine
- articulated
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Abstract
The utility model discloses a tower machine floating roller rolling device for climbing frame, including the bearing, the pin joint has the gyro wheel frame on the bearing, and the pin joint has the gyro wheel more than two on the gyro wheel frame, two gyro wheels of having arranged at least in upper and lower direction. This structure makes the atress on standard festival main chord member surface comparatively even, reduces the wearing and tearing on pair of rollers standard festival main chord member surface, noise when reducing the jacking.
Description
Technical field
The utility model relates to tower machine, especially tower machine climbing frame floating roller tourelle.
Background technology
As shown in Figure 1, the climbing frame of tower machine is introduced primarily of cover shelf structure 100, platform 200 and standard knot and is exited platform 300, and climbing frame is provided with hydraulic jacking system composition, and hydraulic jacking system comprises jacking cylinder 400 and hydraulic lifting pump.Jacking cylinder is arranged on the crossbeam on rear side of cover shelf structure 100, and hydraulic lifting pump station, on the platform of side, is provided with 16 roller devices 500 inside cover shelf structure 100.
Tower machine tower body must utilize climbing frame when needing to connect high.By the requirement of tower machine products instruction, before jacking, first to remove the connection of revolution undersetting and former tower body, jacking cylinder is the jack-up tower machine revolution above structure of undersetting and climbing frame 10 ~ 30mm upwards, observation tower body main chord and tower machine turn round undersetting supporting leg interface position misalignment, if there is the phenomenon of dislocation, before and after start amplitude variation trolley and make tower body main chord and tower machine turn round undersetting leg location to align, and then start hydraulic jacking system and make tower machine turn round more than undersetting structure and climbing frame upwards rises, thus a space installed additional needed for standard knot is formed in cover shelf structure 100 framework, exit platform 300 by standard knot introduction and newly-increased standard knot can be incorporated into cover shelf structure 100 lower portion from the opening part of cover shelf structure 100, standard knot will be increased newly connect with tower body, form the tower body of new high degree.Along with the stretching of jacking cylinder 400, contract, climbing frame will make relative up-and-down movement with tower body, at this moment owing to being difficult to just by the jacking strong point by the center of gravity of jack-up framing member, so climbing frame meeting run-off the straight in motion process, at this moment climbing frame upper roller device play supporting role, and ensures that climbing frame can only tilt within the specific limits.In addition, due to the roller devices 500 be fixed on cover shelf structure 100 to contact with tower body and to produce relative up-and-down movement time, the effect of guiding is played again in roller rolling.
Current domestic tower owner will adopt two kinds of roller devices structures.As shown in Figure 2, be that domestic tower machine often adopts traditional structure, it comprises tower body and climbing frame 70, and tower body is made up of standard knot 60, and standard knot 60 comprises main chord of standard section 601, and cover shelf structure 100 comprises stock main chord 701 and horizontal web member 702; Horizontal web member 702 is provided with roller devices 500, the roller 502 that described roller devices 500 comprises adjusting screw(rod) 501 and is located on screw rod 501, wherein guiding gap delta can be adjusted by adjusting screw(rod) 501.δ value is an empirical data, facts have proved that δ keeps 2.5 ~ 3.5mm to be proper.For the adjustment of δ value, products instruction requirement, has been responsible for by installation personnel before the jacking of tower machine.Climbing frame upper roller device is locked after setting up.And then implement lifting operation, but in fact roller is left tower body to a certain degree just by installation personnel often by rule of thumb.δ value is how many who can hardly be explained on earth, if climbing frame tilts excessive in jacking process, can increase top lift and cause jacking smooth, noise increase etc., exist certain potential safety hazard.Can with the passing of time get rusty owing to maintaining improper adjusting screw(rod) 501 in addition.Useful tower machine in a few years, adjusting screw(rod) 501 cannot regulate because getting rusty at all, and δ value is uncontrollable.
As shown in Figure 3, be now have producer, for the problem of said structure, 16 roller devices are designed to fixed sturcture, ensure when δ value is manufactured by producer.Be proven, this structure is better than said structure in guarantee roller wheel bearing and directional tagging.
Adopt above-mentioned two kinds of roller devices, after tower machine tower body uses a period of time observe find, roller is not quite alike at the vestige of main chord of standard section 8 surface rollings, have shallow, have dark, particularly when jacking, the main chord of standard section honing in arm and balance direction is obvious.Be by analysis due to δ value is bigger than normal or jacking time opposite support points to lean forward and centrifugal castor has the comparatively factor such as big difference to cause pair of rollers main chord of standard section surface reaction forces to increase and causes, thus exacerbate the wearing and tearing on main chord of standard section surface, during jacking, noise also can increase.All there is Similar Problems in the single-wheel tourelle of above two kinds of structures.
Summary of the invention
In order to allow the stressed comparatively even of main chord of standard section surface, reduce the wearing and tearing on pair of rollers main chord of standard section surface, reduce noise during jacking, the utility model provides a kind of tower machine climbing frame floating roller tourelle.
For achieving the above object, a kind of tower machine climbing frame floating roller tourelle, comprises supporting base, supporting base is articulated with turning rolls, turning rolls is articulated with the roller of more than two, be at least placed with two rollers in the vertical direction.
Said structure, due to hinged turning rolls, and be provided with multiple roller, like this, after climbing frame tilts certain angle, turning rolls can swing an angle, allow roller can touch main chord of standard section surface, like this, the power being applied to main chord of standard section surface is comparatively even, little to the wearing and tearing on main chord of standard section surface, reduce noise during jacking.
Further, all rollers can be applied on main chord of standard section, and like this, each roller can carry certain power, reduces the wearing and tearing to main chord of standard section surface.
Further, the pivot joint center of the roller of same row is positioned in the vertical direction on the same line.
Further, turning rolls is articulated with the roller that two external diameters are identical, in the vertical direction, wherein a roller is positioned at the top of another roller.
Further, the centre of gration of two rollers is respectively O
1and O
2, the centre of gration of turning rolls is O
3, O
3point is located at O
1o
2on perpendicular bisector, like this, two roller stress are identical, the centre of gration uniform force of pair roller frame.
Further, described supporting base comprises connecting portion and articulated section, and the cross section of connecting portion is circular, and the cross section of articulated section is flat, between connecting portion with articulated section and the relative both sides being positioned at articulated section are formed with step respectively; Described turning rolls comprises roll left wheel carrier and right turning rolls; Left wheel chord position is in the left side of articulated section, and the step in roll left wheel carrier and left side is in Shang You overlay region, orthogonal projection direction; Right turning rolls is positioned at the right side of articulated section, and the step on right turning rolls and right side is in Shang You overlay region, orthogonal projection direction; Turning rolls has a distance near between the end face and step of supporting base.Said structure, by arranging a distance, can control the pendulum angle of turning rolls.
Further, turning rolls is articulated on supporting base by anchor shaft, and turning rolls is fixed with by screw the first pressing plate of compacting anchor shaft, can prevent anchor shaft from departing from and the safety misadventure that causes; Roller is articulated on turning rolls by drive-connecting shaft, and turning rolls is fixed with by screw the second pressing plate of compacting drive-connecting shaft, can prevent drive-connecting shaft from departing from and the safety misadventure that causes.
Further, climbing frame is enclosed within outside the tower body that is made up of standard knot, and supporting base is arranged on climbing frame, and roller is between climbing frame and tower body.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of climbing frame and hydraulic jacking system.
Fig. 2 is the tourelle conventional confguration schematic diagram that domestic tower machine often adopts.
Fig. 3 is the tourelle existing structure schematic diagram that tower machine often adopts.
The schematic diagram of Fig. 4 tower machine.
Fig. 5 is the distribution graph of tower machine climbing frame floating roller tourelle between climbing frame and tower body.
Fig. 6 is the schematic diagram of tower machine climbing frame floating roller tourelle.
Fig. 7 is the birds-eye view of tower machine climbing frame floating roller tourelle.
Fig. 8 is the schematic diagram be installed to by tower machine climbing frame floating roller tourelle on climbing frame.
Stressed schematic diagram when Fig. 9 is jacking climbing frame.
Figure 10 is O
4the tower machine climbing frame floating roller tourelle change in location sketch that point is corresponding.
Figure 11 is but the stressed schematic diagram of roller tourelle.
Figure 12 is the stressed schematic diagram that the utility model tower machine climbing frame floating roller tourelle adopts two roller.
Figure 13 is the schematic diagram of climbing frame when being nested into tower body.
Figure 14 is the enlarged drawing of A in Figure 13.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further elaborated.
As shown in Figure 4, tower owner to comprise be made up of standard knot 60 tower body 60a, climbing frame 70, revolution undersetting 80, pivoting support 90, revolution upper bracket 20, arm 30, equilibrium arm 40 etc.Climbing frame 70 upper end is connected with revolution undersetting 80, climbing frame 70 is provided with floating roller tourelle 10, floating roller tourelle can slide on the main chord of standard knot, revolution undersetting 80 is arranged on the top of tower body 60a, pivoting support 90 is arranged on revolution undersetting 80, revolution upper bracket 20 is arranged on pivoting support 90, and arm 30 and equilibrium arm 40 are arranged on revolution upper bracket 20.
As shown in Figure 5, standard knot 60 comprises main chord of standard section 601 and the horizontal web member 602 of standard knot.
See Fig. 1, climbing frame 70 comprise cover shelf structure 100, platform 200, standard knot introduce exit platform 300, climbing frame 70 is provided with hydraulic jacking system, and hydraulic jacking system comprises jacking cylinder 400 and hydraulic lifting pump.Jacking cylinder is arranged on the crossbeam on rear side of cover shelf structure 100, and hydraulic lifting pump station is on the platform of side.Cover shelf structure 100 comprises stock main chord 701 and horizontal web member 702; Horizontal web member 702 is provided with tower machine climbing frame floating roller tourelle 10.
As shown in Figure 6 and Figure 7, tower machine climbing frame floating roller tourelle 10 comprises supporting base 1, turning rolls 2 and roller 3.
Described supporting base 1 comprises connecting portion 11 and articulated section 12; The cross section of connecting portion 11 is circular, and connecting portion 11 is connected on horizontal web member 702; The cross section of articulated section 12 is flat, between connecting portion 11 with articulated section 12 and the relative both sides being positioned at articulated section are formed with step 13 respectively.
Described turning rolls 2 comprises roll left wheel carrier 21 and right turning rolls 22; The wheel carrier 21 that rolls left is connected by attaching parts with right turning rolls 22; The wheel carrier 21 that rolls left is positioned at the left side of articulated section 12, and the step in roll left wheel carrier 21 and left side is in Shang You overlay region, orthogonal projection direction; Right turning rolls 22 is positioned at the right side of articulated section, and the step on right turning rolls 22 and right side is in Shang You overlay region, orthogonal projection direction; Turning rolls has a distance h near between the end face and step of supporting base; Roll left wheel carrier 21 and right turning rolls 22 is articulated on articulated section 12 by anchor shaft 4, and turning rolls 2 is fixed with by screw the first pressing plate 5 of compacting anchor shaft 4, can prevent anchor shaft from departing from and the safety misadventure that causes.Owing to being provided with distance h, therefore, the pendulum angle of turning rolls 2 can be limited.
Turning rolls 2 is articulated with by drive-connecting shaft 6 roller 3 of more than two, turning rolls 2 is fixed with by screw the second pressing plate 7 of compacting drive-connecting shaft 6, can prevent drive-connecting shaft from departing from and the safety misadventure that causes.In the present embodiment, the quantity of roller 3 is two, in the vertical direction, and wherein a roller is positioned at the top of another roller, be positioned at the pivot joint center of the roller of same row in the vertical direction on the same line, two rollers can be applied to main chord of standard section 601 on the surface.Roller is between climbing frame 70 and tower body 60a.
As shown in Figure 6, two rollers in each tower machine climbing frame floating roller tourelle 10 can respectively around O
1, O
2rotate, O
3point is located at O
1o
2on perpendicular bisector, O
1o
2line can around O
3point is made cw or rotates counterclockwise, and turning rolls 2 can limit O with the gap h of supporting base step 13
1o
2line is around O
3the angle that point rotates.
As shown in Figure 8, cover shelf structure 100 is equipped with multiple tower machine climbing frame floating roller tourelle, because jacking cylinder piston rod axis 41 and stock main chord 701 vertical direction have a little angle α, so jacking cylinder upwards jack-up climbing frame 70 time, as shown in Figure 9, on climbing frame 70, A point can produce a horizontal component of force F
2, F
2effect can make climbing frame 70 rotate counterclockwise an angle around O point, at this moment the distance be arranged between the anchor shaft axle center of the tower machine climbing frame floating roller tourelle 10 on climbing frame 70 and main chord of standard section 601 surface can change, as follows respectively: as shown in Figure 8, O
4, O
5, O
6and O
7 respectivelyrepresent the axle center of tower machine climbing frame floating roller tourelle 10 anchor shaft, O
4, O
5for the anchor shaft axle center away from jacking cylinder side tower machine climbing frame floating roller tourelle, O
6, O
7for the anchor shaft axle center near jacking cylinder side tower machine climbing frame floating roller tourelle, in jacking process, O
4point and O
6point can reduce from main chord of standard section 601 surface distance, O
5point and O
7point increases from main chord of standard section 601 surface distance, and it should be noted that: in actual condition, due to the effect of various factors, climbing frame 70 rotates counterclockwise around O point or rotates clockwise is all possible.Here, only analyze due to F
2effect, climbing frame 70 hypsokinesis O
4point is when tower body, and tower machine climbing frame floating roller tourelle plays the situation of supporting and directional tagging.In the utility model, O point is the hinge-point of jacking cylinder and tower body, and A point is the hinge-point of jacking cylinder and climbing frame 70.
See Figure 10, be O
4the tower machine climbing frame floating roller tourelle change in location sketch that point is corresponding.If before jacking cylinder 400 acts on, when climbing frame 70 and tower body ideal state, O
4point to main chord of standard section 601 surface distance is L, and wherein a roller and another roller line of centers are parallel to main chord of standard section 601, and gap is δ.Due to F
2effect climbing frame 70 hypsokinesis of power, climbing frame 70 with O point for the center of circle, R
1for radius rotates counterclockwise, at this moment, L value and δ value can reduce simultaneously.When a roller and another roller one of them first with tower body surface contact time, two roller center-point lines can automatically around O
4point rotates, until two rollers are close to tower body surface.Now, the two roller lines of centres are parallel with tower body surface, and have δ=0, L-δ=L
0.L
0for the arigid size of tower machine climbing frame floating roller tourelle.So tower machine climbing frame floating roller tourelle can play non-yielding prop effect when climbing frame 70 run-off the straight.
When climbing frame 70 makes relative up-and-down movement with tower body surface, the two-wheel being close to this face can roll around the center of circle of self simultaneously, plays the effect of guiding.
Figure 11 is the stressed schematic diagram of live roller, and Figure 12 is the stressed schematic diagram of the utility model tower machine climbing frame floating roller tourelle.The utility model structure is that the stress point that a climbing frame floating roller tourelle acts on tower body surface is become 2 by 1.So radial wheel load reduces one times, the degree of wear of wheel to tower body surface so just can be alleviated.As is illustrated by figs. 11 and 12, radial wheel load F when radial wheel load F, Figure 12 are two roller effect when Figure 11 is single roller effect
3,f
4
Prove: by Σ M
04=0
: F
3l
1=F
4l
2
∵ L again
1=L
2
∴F
3=F
4
∵ F again
3+ F
4=F
∴F
3=F
4=F/2
It can thus be appreciated that the radial wheel load of each roller of the utility model reduces one times.
Structure of the present utility model, when jacking operating mode, climbing frame 70 run-off the straight within the scope of δ value, the point that tower machine climbing frame floating roller tourelle contacts compared with single-wheel tourelle and main chord of standard section 601 surface simultaneously will double, so guiding is more steady, noise can reduce.
In addition, as shown in Figure 13 and Figure 14, tower machine climbing frame floating roller tourelle two roller core wheel line vertically can turn a low-angle in surface relative to tower body, is convenient to be inserted in when climbing frame is installed on-site.
Structure of the present utility model, tower machine climbing frame floating roller tourelle structure is simple, be convenient to manufacture and install, use and repair and maintenance.
Claims (8)
1. a tower machine climbing frame floating roller tourelle, is characterized in that: comprise supporting base, supporting base is articulated with turning rolls, and turning rolls is articulated with the roller of more than two, is at least placed with two rollers in the vertical direction.
2. tower machine climbing frame floating roller tourelle according to claim 1, is characterized in that: all rollers can be applied on main chord of standard section.
3. tower machine climbing frame floating roller tourelle according to claim 1, is characterized in that: be positioned at the pivot joint center of the roller of same row in the vertical direction on the same line.
4. tower machine climbing frame floating roller tourelle according to claim 1, is characterized in that: on turning rolls, be articulated with two rollers, in the vertical direction, wherein a roller is positioned at the top of another roller.
5. tower machine climbing frame floating roller tourelle according to claim 4, is characterized in that: the centre of gration of two rollers is respectively O
1and O
2, the centre of gration of turning rolls is O
3, O
3point is located at O
1o
2on perpendicular bisector.
6. tower machine climbing frame floating roller tourelle according to claim 1, it is characterized in that: described supporting base comprises connecting portion and articulated section, the cross section of connecting portion is circular, the cross section of articulated section is flat, between connecting portion with articulated section and the relative both sides being positioned at articulated section are formed with step respectively; Described turning rolls comprises roll left wheel carrier and right turning rolls; Left wheel chord position is in the left side of articulated section, and the step in roll left wheel carrier and left side is in Shang You overlay region, orthogonal projection direction; Right turning rolls is positioned at the right side of articulated section, and the step on right turning rolls and right side is in Shang You overlay region, orthogonal projection direction; Turning rolls has a distance near between the end face and step of supporting base.
7. tower machine climbing frame floating roller tourelle according to claim 1, is characterized in that: turning rolls is articulated on supporting base by anchor shaft, and turning rolls is fixed with by screw the first pressing plate of compacting anchor shaft; Roller is articulated on turning rolls by drive-connecting shaft, and turning rolls is fixed with by screw the second pressing plate of compacting drive-connecting shaft.
8. tower machine climbing frame floating roller tourelle according to claim 1, is characterized in that: climbing frame is enclosed within outside the tower body that is made up of standard knot, and supporting base is arranged on climbing frame, and roller is between climbing frame and tower body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520665484.1U CN204897256U (en) | 2015-08-31 | 2015-08-31 | Tower machine floating roller rolling device for climbing frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520665484.1U CN204897256U (en) | 2015-08-31 | 2015-08-31 | Tower machine floating roller rolling device for climbing frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204897256U true CN204897256U (en) | 2015-12-23 |
Family
ID=54919448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520665484.1U Active CN204897256U (en) | 2015-08-31 | 2015-08-31 | Tower machine floating roller rolling device for climbing frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204897256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476982A (en) * | 2022-01-19 | 2022-05-13 | 东莞市毅新庆江机械制造有限公司 | Heightening device and heightening method of tower crane |
-
2015
- 2015-08-31 CN CN201520665484.1U patent/CN204897256U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476982A (en) * | 2022-01-19 | 2022-05-13 | 东莞市毅新庆江机械制造有限公司 | Heightening device and heightening method of tower crane |
| CN114476982B (en) * | 2022-01-19 | 2022-08-16 | 东莞市毅新庆江机械制造有限公司 | Heightening device and heightening method of tower crane |
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| GR01 | Patent grant |