CN202296894U - Single-boom gantry crane - Google Patents
Single-boom gantry crane Download PDFInfo
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- CN202296894U CN202296894U CN2011203532331U CN201120353233U CN202296894U CN 202296894 U CN202296894 U CN 202296894U CN 2011203532331 U CN2011203532331 U CN 2011203532331U CN 201120353233 U CN201120353233 U CN 201120353233U CN 202296894 U CN202296894 U CN 202296894U
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- column
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- boom
- single armed
- jib
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Abstract
The utility model discloses a single-boom gantry crane, comprising a gantry, a rotary table, a machine room, a balance beam, a small pull rod, a boom and a cab. The single-boom gantry crane is characterized by comprising a stand column and the rotary plate is arranged above a cylinder of the gantry; the stand column is arranged above the rotary plate and the balance beam is arranged at the top of the stand column; the balance beam is connected with the boom through the small pull rod at the bottom end; the machine room is arranged on the stand column and the cab is arranged on the side surface of the stand column which is arranged at one side of the boom; and a hoisting steel wire rope bypasses a winding drum and a plurality of pulleys to extend below the front end of the bottom and is connected with a lifting hook. The single-boom gantry crane disclosed by the utility model is adopted to solve the problems in the prior art that the gravity center of the whole gantry of the single-boom gantry crane is very high to affect the stability of the whole crane and since the hoisting steel wire rope has two winding directions in the movement process, the abrasion and the breaking of steel wires of the steel wire rope are accelerated and aggravated. The utility model provides the single-boom gantry crane which has the advantages of greatly lowering the gravity center of the whole crane and prolonging the service life of the steel wire rope.
Description
Technical field
The utility model relates to a kind of single armed frame span winch, particularly relates to the low door frame single armed frame span winch of a kind of high column.
Background technology
As shown in Figure 1, the structure that present single armed frame span winch generally adopts is to comprise door frame 1, rotating disk 2, machine house 3, Shears 4, equalizing bar 5, lower link bar 6, jib 7, driver's cab 8.Above door frame 1 cylinder 9, be provided with rotating disk 2, above rotating disk 2, be provided with machine house 3 and Shears 4, be provided with equalizing bar 5 on the top of Shears 4.As shown in Figure 4, the front end face of rotating disk 2 is provided with jib bearing 10, said jib 7 terminal twisted axis are fixed in the jib bearing 10.Equalizing bar 5 is connected with jib 7 through the lower link bar 6 of its bottom, on rotating disk 2, also is provided with the driver's cab 8 that is made for the industry personnel operation, and Shears 4 is provided with the pulley that supplies the hoist rope pile warp with equalizing bar 5.
Adopt said structure single armed frame span winch; Have following shortcoming: with type is that lifting altitude is that 34 meters (suspension hooks) are example; And this moment, door frame 1 whole height was 22.5 meters, and only the height of door frame cylinder 9 just reaches 14 meters, caused near whole door machine center of gravity high (its center of gravity is rotating disk 2 height) like this; Thereby influence the stability of complete machine, the rigidity of complete machine, the dynamic property of complete machine, influence driver's operation.
The used hoist rope of single armed frame span winch is four simultaneously, and every its length of steel rope is approximately (its length of different shaped single armed frame span winch maybe be slightly different) about 200 meters.In the working service cost of single armed frame span winch, hoist rope expense accounting reaches more than 50%, and the life-span of its use has directly influenced the height of maintenance cost.
Shown in Fig. 2～3, the concrete trend of hoist rope is seen Fig. 3, hoist rope is by the reel in the machine house 11---pulley 12---pulley 13---pulley 14---pulley 15---pulley 16; Can know and find out; To being cw, write out a prescription to being cw at pulley 13,14,15,16 to being conter clockwise by pulley 12 prescriptions at reel 11 prescriptions for hoist rope; Like this hoist rope motion the time exist simultaneously two kinds around to; Steel rope back-roll is that steel rope winds to look from the same side into and out of the direction of pulley, reel etc. and has clockwise direction and anticlockwise direction simultaneously, and the crooked institute of steel rope back-roll cause the steel rope fatigue damage for suitable around twice, thereby increased the weight of the wearing and tearing of steel rope steel wire and rope strand and fractureed; Make steel rope reach the condition of scrapping in advance, brought greater loss to enterprise.
Summary of the invention
In order to solve single armed frame span winch in the prior art; Whole door machine center of gravity is high, thereby influences the stability of complete machine, the rigidity of complete machine, the dynamic property of complete machine, influences the problem of driver's operation; Also for the hoist rope that solves single armed frame span winch in the prior art exist simultaneously when the motion two kinds around to; Thereby increased the weight of the wearing and tearing of steel rope steel wire and rope strand and fractureed, made steel rope reach the condition of scrapping in advance, brought the problem of greater loss to enterprise.The utility model provides a kind of machine gravity that reduces greatly, prolongs the steel rope single armed frame span winch in service life.
In order to address the above problem, what the utility model was taked is that technical scheme is:
A kind of single armed frame span winch comprises door frame, rotating disk, machine house, equalizing bar, lower link bar, jib and driver's cab, also comprises column; Above the door frame cylinder, be provided with rotating disk; Above rotating disk, be provided with column, the terminal twisted axis of said jib is fixed on the column side, is provided with equalizing bar on the top of column; Equalizing bar is connected with jib through the lower link bar of its bottom; Column is provided with machine house, on the column side that is positioned at jib one side, is provided with driver's cab, in machine house, is provided with reel; Column and jib are provided with some pulleys, and said hoist rope is connected with suspension hook below walking around reel and some pulleys extending to the jib front end.
Aforesaid a kind of single armed frame span winch, wherein, it all is clockwise direction or anticlockwise direction that the direction that said hoist rope is walked around reel and pulley is looked from the same side.
Aforesaid a kind of single armed frame span winch wherein, is provided with first pulley on the top of column, between the reel and first pulley, is provided with the overload pulley in the side of column, and said hoist rope is walked around the overload pulley and first pulley.
Aforesaid a kind of single armed frame span winch, wherein, the direction that said hoist rope is walked around the overload pulley and first pulley is consistent with the direction that hoist rope is walked around reel and other pulley.
Aforesaid a kind of single armed frame span winch, wherein, the height of said door frame is no more than 30% of lifting altitude, and said door frame cylinder height is no more than 4.7% of lifting altitude.
Aforesaid a kind of single armed frame span winch, wherein, the height of said column is greater than 57% of lifting altitude.
The beneficial effect of the utility model is:
The machine gravity that the design of the low door frame of 1 high column greatly reduces homotype single armed frame span winch is high, thereby improves the stability of complete machine, and makes that the rotating part of whole span winch can preferred arrangement.
1), increases the free height of machine house.Conventional door machine is because column is shorter, and the luffing platform is less apart from the distance of turntable surface, generally has only 4m many, and the machine room height on the turntable surface can only accomplish that also 4m is high like this, and machine room in-to-in headroom also has only about 4m.The utility model door machine column is very high, and the luffing platform is many apart from 15m apart from turntable surface, and our machine room just can suitably be done height like this, makes machine room in-to-in clear headroom near 5m.
2), driver's cab can be installed in any height of column, not be confined to rotating disk above, can improve cab height, thereby increase driver's the visual field.
3), can control the first pulley angle that hoist rope pushes up less than 1.5 degree (GB is 3 degree) from the reel to the column, move more reliable and more stable.
In the service life that the suitable winding meter of 2 hoist ropes improves hoist rope greatly, make and safeguard that operating costs reduces, and has reduced the cost of enterprise.
Description of drawings
Fig. 1 is the structural representation of single armed frame span winch in the prior art.
Fig. 2 be in the prior art single armed frame span winch steel rope around to schematic perspective view.
Fig. 3 be in the prior art single armed frame span winch steel rope around to scheme drawing.
Fig. 4 is the enlarged diagram of A part among Fig. 1.
Fig. 5 is the structural representation of the utility model single armed frame span winch.
Fig. 6 is the utility model single armed frame span winch steel rope around to schematic perspective view.
Fig. 7 is the utility model single armed frame span winch steel rope around to scheme drawing.
Fig. 8 is the enlarged diagram of B part among Fig. 5.
The specific embodiment
Do further to describe below in conjunction with accompanying drawing the utility model.
Like Fig. 5 and shown in Figure 8, a kind of single armed frame span winch comprises door frame 21, rotating disk 22, machine house 23, column 24, equalizing bar 25, lower link bar 26, jib 27 and driver's cab 20; Above the cylinder 28 of door frame 21, be provided with rotating disk 22; Above rotating disk 22, be provided with column 24, convex with jib bearing 29 in the side of column 24, jib 27 terminal twisted axis are fixed in the jib bearing 29; Be provided with equalizing bar 25 on the top of column 24; Equalizing bar 25 is connected with jib 27 through the lower link bar 26 of its bottom, and column 24 is provided with machine house 23, is provided with driver's cab 20 being positioned on column 24 sides of jib 27 1 sides.During design, driver's cab 20 can be installed in any height of column 24, not be confined to rotating disk 22 above, can improve cab height, thereby increase driver's the visual field.
In machine house 23, be provided with two reels 31; Be provided with four first pulleys 33 on the top of column 24; Side at column 24 is provided with four overload pulleys 32 between the reel 31 and first pulley 33; At column 24 front ends, equalizing bar is provided with four the 3rd pulleys 35, is provided with four second pulleys 34 and four the 4th pulleys 36 at jib 27 tops.During design, the height of the 3rd pulley 35, first pulley 33, second pulley 34, the 4th pulley 36 raises successively.As shown in Figure 6, hoist rope is four, walks around two hoist ropes on each reel 31, and every hoist rope is walked around successively and extended to jib 27 front ends below behind the corresponding pulley that is provided with and be connected with suspension hook 30.The angle first pulley 33 of 24 tops is less than 1.5 degree from reel 31 to column for hoist rope, and the hoist rope operation is more reliable and more stable.
The present embodiment type is that lifting altitude is 34 meters (suspension hooks), and the height of said door frame 21 is 9.88 meters, is 29% of 34 meters of lifting altitudes, and it is 4.65% of 34 meters of lifting altitudes that door frame cylinder 28 length are 1.58 meters.Thereby through above-mentioned setting make whole span winch center of gravity than present single armed frame span winch machine gravity low about 6 meters (its center of gravity of single armed frame span winch of the utility model also is near rotating disk 22 height).Stability, rigidity and the dynamic property of complete machine strengthened in design like this, is convenient to driver's operation.
As shown in Figure 7; Then there is not the back-roll phenomenon in the utility model single armed frame span winch hoist rope; It is around---overload pulley 32---first pulley 33---second pulley 34---the 3rd pulley 35---the 4th pulley 36 to being reel 31; Hoist rope has greatly improved the service life of steel rope around to being clockwise direction, thereby has reduced the working service cost.
More than show and described groundwork, principal character and the advantage of the utility model.The technical personnel of the industry should be understood; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification sheets that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
Claims (6)
1. a single armed frame span winch comprises door frame, rotating disk, machine house, equalizing bar, lower link bar, jib and driver's cab, it is characterized in that: also comprise column; Above the door frame cylinder, be provided with rotating disk; Above rotating disk, be provided with column, the terminal twisted axis of said jib is fixed on the column side, is provided with equalizing bar on the top of column; Equalizing bar is connected with jib through the lower link bar of its bottom; Column is provided with machine house, on the column side that is positioned at jib one side, is provided with driver's cab, in machine house, is provided with reel; Column and jib are provided with some pulleys, and said hoist rope is connected with suspension hook below walking around reel and some pulleys extending to the jib front end.
2. a kind of single armed frame span winch according to claim 1 is characterized in that: it all is clockwise direction or anticlockwise direction that the direction that said hoist rope is walked around reel and pulley is looked from the same side.
3. a kind of single armed frame span winch according to claim 1; It is characterized in that: be provided with first pulley on the top of column; Side at column is provided with the overload pulley between the reel and first pulley, said hoist rope is walked around the overload pulley and first pulley.
4. a kind of single armed frame span winch according to claim 3 is characterized in that: the direction that said hoist rope is walked around the overload pulley and first pulley is consistent with the direction that hoist rope is walked around reel and other pulley.
5. according to claim 2 or 4 described a kind of single armed frame span winchs, it is characterized in that: the height of said door frame is no more than 30% of lifting altitude, and said door frame cylinder height is no more than 4.7% of lifting altitude.
6. a kind of single armed frame span winch according to claim 5, it is characterized in that: the height of said column is greater than 57% of lifting altitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203532331U CN202296894U (en) | 2011-09-20 | 2011-09-20 | Single-boom gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203532331U CN202296894U (en) | 2011-09-20 | 2011-09-20 | Single-boom gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202296894U true CN202296894U (en) | 2012-07-04 |
Family
ID=46365833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203532331U Expired - Lifetime CN202296894U (en) | 2011-09-20 | 2011-09-20 | Single-boom gantry crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202296894U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310236A (en) * | 2014-08-26 | 2015-01-28 | 中天钢铁集团有限公司 | Fixed rotary support type crane for harbors |
| CN107200278A (en) * | 2017-07-12 | 2017-09-26 | 武汉理工大学 | The single arm support crane luffing horizontal displacement system of differential compensation |
| CN110602451A (en) * | 2019-09-02 | 2019-12-20 | 武汉港迪电气有限公司 | Portal crane operation video monitoring system and switching method thereof |
-
2011
- 2011-09-20 CN CN2011203532331U patent/CN202296894U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104310236A (en) * | 2014-08-26 | 2015-01-28 | 中天钢铁集团有限公司 | Fixed rotary support type crane for harbors |
| CN107200278A (en) * | 2017-07-12 | 2017-09-26 | 武汉理工大学 | The single arm support crane luffing horizontal displacement system of differential compensation |
| CN110602451A (en) * | 2019-09-02 | 2019-12-20 | 武汉港迪电气有限公司 | Portal crane operation video monitoring system and switching method thereof |
| CN110602451B (en) * | 2019-09-02 | 2021-03-30 | 武汉港迪电气有限公司 | Portal crane operation video monitoring system and switching method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120704 |