The conductor rope carrying roller of a kind of hoisting crane, crane arm support and hoisting crane
Technical field
The utility model relates to a kind of hoisting crane technology, and particularly a kind of conductor rope carrying roller of hoisting crane also relates to crane arm support that comprises this conductor rope carrying roller and the hoisting crane that comprises this jib.
Background technology
In elevator machinery, generally carry out lifting or unloading operation through hoisting mechanism; For the position of the steel rope of controlling hoisting mechanism, have at high pedestal jib crane or other on jib body of hoisting crane of similar structures and be provided with the conductor rope carrying roller usually, to realize guiding, the position of control steel rope to steel rope.
The conductor rope carrying roller is provided with suitable roller usually, and roller is installed on the carrier roller frame through roller shaft; The guide groove that cooperates with steel rope is set on the roller; Through realizing guide groove and cooperating of steel rope to the steel rope control of position.At present, in order to guarantee the reliability of roller, prolong the service life of roller, the roller of conductor rope carrying roller generally obtains with the ferrous materials manufacturing.Like this, in the process of lifting or unloading operation, contacting between steel rope and the roller forms the rigidity contact, so just causes the rate of wear of steel rope too fast easily; This not only influences the safety of hoisting operation, also causes the elevator resistance excessive easily.Simultaneously, the roller of conductor rope carrying roller is exposed to the field for a long time, and the roller of ferrous materials manufacturing also is corroded easily, and then influences the intensity of roller.
In addition, when roller is installed, be provided with non-removable bearing usually, through the axle head baffle plate roller shaft be fixed on the non-removable bearing again; When utilizing this mode that roller is installed, cause the position deviation of roller excessive easily, influence the guide groove of roller and cooperating of steel rope, and then the wearing and tearing of aggravation steel rope; And existing conductor rope carrying roller is inconvenient to dismantle maintenance or the replacing that is unfavorable for roller.
The utility model content
Therefore, a purpose of the utility model is: a kind of conductor rope carrying roller of hoisting crane is provided, utilizes this conductor rope carrying roller can reduce the rate of wear of steel rope.
On the basis that above-mentioned conductor rope carrying roller is provided, the utility model also provides a kind of crane arm support and the hoisting crane that comprises this jib.
To achieve these goals, the conductor rope carrying roller of the hoisting crane that provides of the utility model comprises carrier roller frame, roller shaft and at least one roller; The jib body of said carrier roller frame and hoisting crane is fixed, and said roller is installed in roller shaft,, said roller shaft is installed on the carrier roller frame, and said roller is become by ultrahigh molecular weight polyethylene.
Optional, said carrier roller frame comprises relatively-stationary installation support plate and baffle plate; Said installation support plate is provided with first elongate slots that opening is positioned at its outer edge, and said baffle plate is provided with second elongate slots that opening is positioned at its inside edge; Said first elongate slots and second elongate slots all with the axis normal of said roller shaft; Said roller shaft is stuck between the bottom of bottom and second elongate slots of said first elongate slots.
Optional, in the bottom of the bottom of first elongate slots and second elongate slots, the arcuate structure of radius greater than the radius of said roller shaft formed on the bottom of one of them elongate slots, and the arcuate structure that radius equates with the roller shaft radius is formed on the bottom of another elongate slots.
Optional, said installation support plate and baffle plate are fixedly linked through a plurality of threaded fastenerss, and a plurality of said threaded fastenerss are evenly arranged in around the axis of roller shaft.
Optional, the bearing of trend of said first elongate slots is parallel with the bearing of trend of second elongate slots.
Optional, the conductor rope carrying roller of said hoisting crane also comprises ward off rope device, said ward off rope device comprises retaining reel for rope that is installed on the baffle plate and the retaining rope rotary sleeve that is rotatably installed on the retaining reel for rope; The axis of said retaining reel for rope and the parallel axes of roller shaft.
Optional, on roller shaft, fix by said bearing cone and roller shaft through bearing installation for said roller, and outer ring and roller are fixed.
Optional, the conductor rope carrying roller of described hoisting crane comprises first roller and second roller, and said first roller is installed on the roller shaft through at least one clutch shaft bearing, and said second roller passes through at least one second bearing installation on roller shaft;
Also comprise the interfix axle sleeve between first roller and second roller; One end of said interfix axle sleeve is conflicted at the inner ring end face of a clutch shaft bearing, and the other end is conflicted at the second bearing cone end face.
The crane arm support that the utility model provides comprises jib body and conductor rope carrying roller, and said conductor rope carrying roller is installed on the jib body, the conductor rope carrying roller that said conductor rope carrying roller is above-mentioned any hoisting crane.
The hoisting crane that the utility model provides comprises hoisting crane body and jib, and said jib is installed on the hoisting crane body, and said jib is above-mentioned crane arm support.
In the conductor rope carrying roller that the utility model provides, its roller is become by ultrahigh molecular weight polyethylene.Because UHMW polyethylene has the characteristics of self-lubricating; Can reduce the friction between roller and the steel rope like this, and then help reducing the wearing and tearing of steel rope, improve the service life of steel rope.Simultaneously, owing to UHMW polyethylene withstanding corrosion, anti abrasive characteristics, therefore, roller has stronger corrosion stability and abrasion test, and then has long service life; Because UHMW polyethylene proportion is less, makes the weight of roller lighter, and then helps reducing the weight of crane arm support.
In further technical scheme,, and then keep the fixing of pair roller through the combination fixed idler whell axle of two elongate slots; So not only make things convenient for installing and fixing of roller, also can realize the location of pair roller more easily, guarantee the steel rope correct match of roller and hoisting mechanism, reduce the resistance of hoisting mechanism; And then also help reducing the wearing and tearing of steel rope or roller, for the maintenance and the replacing of roller facilitates.
Based on foregoing description, crane arm support that the utility model provides and hoisting crane also have corresponding technique effect.
Description of drawings
Fig. 1 is the side-looking constructional drawing of the conductor rope carrying roller that provides of the utility model embodiment;
Fig. 2 is an A-A sectional structure chart among Fig. 1;
Fig. 3 is in the conductor rope carrying roller that provides of the utility model embodiment, and the structural representation of support plate is installed;
Fig. 4 is a B-B cutaway view among Fig. 3;
Fig. 5 is in the conductor rope carrying roller that provides of the utility model embodiment, the structural representation of baffle plate;
Fig. 6 is an I-I part enlarged drawing among Fig. 2.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, the description of this part only is exemplary and explanatory, should not be regarded as the restriction to the utility model public technology content.
Please refer to Fig. 1 and Fig. 2, Fig. 1 is the side-looking constructional drawing of the conductor rope carrying roller that provides of the utility model embodiment, and Fig. 2 is an A-A sectional structure chart among Fig. 1.
The conductor rope carrying roller of the hoisting crane that the utility model embodiment provides comprises that carrier roller frame 100, roller shaft 200 and two are arranged side by side roller 300.Carrier roller frame 100 is fixed with the jib body (not shown) of hoisting crane, and said roller 300 is installed on the roller shaft 200, and the two ends of roller shaft 200 are installed in respectively on the carrier roller frame 100.In the present embodiment, roller shaft 200 is fixing with carrier roller frame 100, and roller 300 is rotatably installed on the roller shaft 200; Like this, roller 300 can rotate with respect to carrier roller frame 100 and jib body with the motion of steel rope, realizes the rolling directional tagging to steel rope.In the present embodiment, roller 300 is become by ultrahigh molecular weight polyethylene.Because UHMW polyethylene has self-lubricating, so just can reduce the friction between roller 300 and the steel rope, and then help reducing the wearing and tearing of steel rope, improve the service life of steel rope.Simultaneously, owing to UHMW polyethylene withstanding corrosion, anti abrasive characteristics, roller 300 has stronger corrosion stability and abrasion test, and then has long service life; Because UHMW polyethylene proportion is less, the weight of roller 300 is lighter, also helps reducing the weight of crane arm support.
In the present embodiment; Carrier roller frame 100 comprises the installation support plate 110 and baffle plate 120 that is fixedly linked; In the present embodiment, support plate 110 is installed is fixedly linked through a plurality of threaded fastenerss, and a plurality of threaded fasteners is evenly arranged in around the axis of roller shaft 200 with baffle plate 120.
Please refer to Fig. 3, Fig. 4 and Fig. 5, Fig. 3 is in the conductor rope carrying roller that provides of the utility model embodiment, and the structural representation of support plate is installed, and Fig. 4 is a B-B cutaway view among Fig. 3, and Fig. 5 is in the conductor rope carrying roller that provides of the utility model embodiment, the structural representation of baffle plate.Carrier roller frame 100 comprises that two are installed support plate 110 and two baffle plates 120; Two support plate 110 is installed and is linked to each other, keep relative fixed through a transverse plate.Two baffle plates 120 are corresponding with two installation support plates 110 respectively.Support plate 110 is installed is provided with first elongate slots 111 that opening is positioned at its outer edge; Baffle plate 120 is provided with second elongate slots 121 that opening is positioned at its inside edge.As shown in Figure 2, after installation, have between corresponding installation support plate 110 and the baffle plate 120 and overlap, and first elongate slots 111 is corresponding with second elongate slots 121; The bearing of trend of the bearing of trend of first elongate slots 111 and second elongate slots 121 all with the axis normal of roller shaft 200; Roller shaft 200 is stuck between the bottom of bottom and second elongate slots 121 of said first elongate slots 111; Support plate 110 is installed will be fixed through threaded fasteners, and then make roller shaft 200 and carrier roller frame 100 keep being fixedly linked with baffle plate 120 laps.
In order to increase pair roller axle 200 area of contact, arcuate structure is all formed on first elongate slots, 111 bottoms and second elongate slots, 121 bottoms; In the present embodiment, in order to guarantee the fixation of pair roller axle 200, the arc-shaped structure that matches with roller shaft 200 side faces is formed on first elongate slots, 111 bottoms; The arcuate structure of radius greater than roller shaft 200 radiuses formed on second elongate slots, 121 bottoms; Can guarantee the clamping action of pair roller axle 200 like this.Be understood that in first elongate slots 111 and second elongate slots 121; Make the bottom of an elongate slots form the arcuate structure of radius greater than roller shaft 200 radiuses; Make the bottom of another elongate slots form the arcuate structure that radius equates with roller shaft 200 radiuses; The combination of two elongate slots can guarantee roller shaft 200 reliability of fixation in the clamping action that strengthens pair roller axle 200.
In the present embodiment, for the ease of the installation of roller shaft 200, the bearing of trend of first elongate slots 111 is parallel with the bearing of trend of second elongate slots 121.Be understood that the bearing of trend of first elongate slots 111 and the bearing of trend of second elongate slots 121 are not limited to be parallel to each other; Under specific circumstances, also can make between the bearing of trend of bearing of trend and second elongate slots 121 of first elongate slots 111 and keep vertical or have predetermined angle.
As shown in Figure 2, the conductor rope carrying roller that the utility model embodiment provides also comprises ward off rope device 400, and ward off rope device 400 comprises retaining reel for rope 410 that is installed on the baffle plate 120 and the retaining rope rotary sleeve 420 that is rotatably installed on the retaining reel for rope 410; The axis of retaining reel for rope 410 and the parallel axes of roller shaft 200.Ward off rope device 400 is positioned at roller 300 1 sides, like this can with through the outer steel rope of ward off rope device 400 with separate with steel rope that roller 300 matches, avoid or reduce contact and the wearing and tearing between the steel rope.
Please combine Fig. 2 and with reference to figure 5, Fig. 5 is an I-I part enlarged drawing among Fig. 2.Roller 300 is installed on the roller shaft 200 through bearing 201; Bearing 201 is an antifriction-bearing box, and the inner ring of bearing 201 and roller shaft 200 is fixing, and the outer ring is fixing with roller 300, and then rotarying connection between realization roller 300 and the roller shaft 200.Certainly, roller 300 also can be through bearing or other modes and 200 rotatable linking to each other of roller shaft of other types.
The conductor rope carrying roller that the utility model embodiment provides comprises two rollers 300; For convenience, two rollers 300 are called the first roller 300a and the second roller 300b respectively; Correspondingly, the first roller 300a is installed on the roller shaft 200 through two clutch shaft bearing 201a, and the second roller 300b is installed on the roller shaft 200 through two second bearing 201b.In order to make the first roller 300a and the second roller 300b keep predetermined distance, the conductor rope carrying roller also comprises the interfix axle sleeve 202 between the first roller 300a and the second roller 300b; One end of interfix axle sleeve 202 is conflicted at the inner ring end face of a clutch shaft bearing 201a, and the other end is conflicted at the inner ring end face of the second bearing 201b.The length of interfix axle sleeve 202 suitably is set, can makes to keep predetermined distance between the first roller 300a and the second roller 300b, guarantee directional tagging corresponding steel rope; Simultaneously, because interfix axle sleeve 202 do not contact with the outer ring of any bearing, and then this structure can guarantee rotarying connection between roller 300 and the roller shaft 200.Be appreciated that when the conductor rope carrying roller comprises more a plurality of roller 300, also the interfix axle sleeve can be set between corresponding rolling wheel 300,, guarantee rotarying connection between roller 300 and the roller shaft 200 with when guaranteeing to have suitable distance between the roller 300.
The crane arm support that the utility model provides comprises jib body and conductor rope carrying roller, and said conductor rope carrying roller is installed on the jib body, and said conductor rope carrying roller is above-mentioned any conductor rope carrying roller.Because the conductor rope carrying roller has above-mentioned technique effect, comprises that the jib of this conductor rope carrying roller also has the corresponding techniques effect.The hoisting crane that the utility model provides, said hoisting crane comprises hoisting crane body and jib, and said jib is installed on the hoisting crane body, and said jib is above-mentioned jib, and this hoisting crane also has corresponding technique effect.
Used concrete example among this paper the technical scheme that the utility model provides is set forth, the explanation of above embodiment just is used to help to understand the technical scheme that the utility model provides.Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.