CN204281136U - Dolly and hoisting crane - Google Patents
Dolly and hoisting crane Download PDFInfo
- Publication number
- CN204281136U CN204281136U CN201420642919.6U CN201420642919U CN204281136U CN 204281136 U CN204281136 U CN 204281136U CN 201420642919 U CN201420642919 U CN 201420642919U CN 204281136 U CN204281136 U CN 204281136U
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- load arm
- dolly
- steel rope
- described load
- rope
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Abstract
The utility model provides a kind of dolly and hoisting crane, comprising: reel, for Wound steel rope; And load arm, for one end of fixing steel rope; The part for fixing steel rope of described load arm is cylindrical.By adopting columniform load beam, the bending situation that therefore the stressed difference of different piece produces can alleviate.
Description
Technical field
The utility model relates to weight-lifting equipment field, particularly a kind of dolly and hoisting crane.
Background technology
The dolly of hoisting crane is used for realizing goods lifting and moving.Lifting mechanism mainly comprises reel, bont, lifting mechanism, operating unit and support.Its medium-height trestle also comprises load arm and pair of end wheel (EndCarriage), the two ends of steel rope are separately fixed on reel and load arm, the lifting of suspension hook is realized by the rotation of reel, therefore load arm is the power on rope of bearing and passes to end wheel from bont, and passes to stressed the girder passing to hoisting crane further by end wheel.
The method of existing making load arm forms chest shape by plate is welded to each other, but contriver finds that the load arm of prior art is easily out of shape.Therefore a kind of new load arm is needed.
Utility model content
The problem that the utility model solves is to provide a kind of on-deformable dolly and hoisting crane.
For solving the problem, the utility model embodiment provides a kind of dolly, comprising: reel, for Wound steel rope; And load arm, for one end of fixing steel rope; Described load arm for fixing steel rope part be cylindrical.
Alternatively, described load arm has axial line, and the axis parallel of described load arm is in the axial line of described reel.
Alternatively, one end of described steel rope is fixed by equalizing bar and described load arm, and admittedly alternatively, described steel rope is directly also fixing on described load arm for described equalizing bar.
Alternatively, described load arm is provided with pulley bearings.
Alternatively, described load arm is also provided with rope sheave, described rope sheave is arranged on described pulley bearings, and described rope sheave is used for Wound steel rope.
Alternatively, described load arm is fixed on the frame of described dolly by adapter plate.The utility model embodiment still provides a kind of hoisting crane, comprises dolly as above.
Compared with prior art, the technical program has the following advantages:
The dolly of embodiment of the present utility model, be cylindrical load arm by adopting fixing steel rope part, the stressed of concentrically ringed rope can be solved better, because cross-sectional plane is circular, each distance to the center of circle of the circumferential edge of load arm is identical, therefore the shearing stress that is subject to of circumference each point is identical, and that is the shearing stress that is subject to of load arm various piece is identical, therefore can not occur due to the stressed difference of different piece produce bending.
And owing to can directly adopt pipe as load arm, without the need to operations such as the necessary cutting of the square load arm of existing making, welding detections, have therefore saved cost and process time.
Accompanying drawing explanation
Fig. 1 illustrates the integral structure schematic diagram of the dolly of the utility model embodiment;
Fig. 2 illustrates the plan structure schematic diagram of the load arm of the utility model embodiment;
Fig. 3 illustrates the side-looking structural representation of the load arm of the utility model embodiment;
First method structural representation fixing between load arm and steel rope time Fig. 4 illustrates that the baudrier of the dolly of the utility model embodiment is 2x2;
Second method structural representation fixing between load arm and steel rope time Fig. 5 illustrates that the baudrier of the dolly of the utility model embodiment is 2x2;
Fig. 6 illustrates that the baudrier of the dolly of the utility model embodiment is Third Way structural representation fixing between load arm and steel rope when being greater than 2x2;
Fig. 7 illustrates the structural representation arranging pulley bearings and rope sheave on load arm of the utility model embodiment.
Detailed description of the invention
As mentioned above, the load of existing chest shape is easily out of shape, contriver finds that the reason of being out of shape is the shearing stress that can not process well because concentrically ringed rope strength produces, shearing stress is different to centre of gration stress, thus cause the different piece perpendicular to its major axis of load arm to bend, there is skew.Embodiment of the present utility model is circular load beam by adopting cross-sectional plane, therefore the bending situation produced due to the stressed difference of different piece can alleviate, and without the need to making the operation such as the necessary cutting of existing square load arm, welding detection, saved cost and process time.
Describe specific embodiment in detail below by way of according to accompanying drawing, above-mentioned object and advantage of the present utility model will clearly.
The structural representation of the dolly of the hoisting crane of the utility model embodiment is provided as Fig. 1.Described dolly comprises reel 10, load arm 20, frame 30.Described reel 10 is for Wound steel rope.Described load arm 20 is for the other end of fixing steel rope, and the other end of described steel rope is fixed on reel.Described frame 30 is form the reel 10 of whole dolly, the supporting construction of load arm 20.
In one embodiment of the present of invention, the part of one end for fixing steel rope of described load arm is cylindrical.In order to keep the balance of described dolly operation, be vertically only more stable state between the rope on suspension hook and described reel 10 and load arm 20, therefore in order to keep stable, the axis parallel of described load arm is in the axial line of described reel 10.
In one embodiment, described load arm 20 can be columniform pipe.In certain embodiments, the two ends of described load arm 20 will be fixed on the framework of dolly, and therefore the cross-sectional plane at the two ends of described load arm 20 can semicircular in shape.As Fig. 2 and Fig. 3 provide as described in the birds-eye view of load arm and lateral plan.Described load arm 20 two ends are provided with adapter plate 21, can be fixed on the framework of dolly by described load arm 20 by the first adapter plate 21.
As mentioned above, described load arm 20 is for the other end of fixing steel rope.Fixed form between described load arm 20 and steel rope can be different according to actual conditions.The baudrier (reevings) providing dolly as Fig. 4 for steel rope when 2x2 be fixed on as described in first fixed form structural representation on load arm.Described steel rope 40 is fixed on described load arm by equalizing bar 23.In certain embodiments, described load arm 20 is also provided with at least two piece of second adapter plate 22, be set with groove in described two piece of second adapter plate 22, described equalizing bar 23 is fixed in described groove by rivet.
Time the baudrier providing dolly as Fig. 5 is 2x2 steel rope be fixed on as described in the structural representation of second fixed form on load arm.One end of described steel rope 40 is directly fixed on described load arm 20, the fixed form of described steel rope 40 end 41 with around direction relevant.
As Fig. 6 provide baudrier be greater than 2x2 time, steel rope is fixed on the structural representation of the 3rd fixed form on described load arm.When steel rope around baudrier be greater than x2, pulley bearings and rope sheave can be set on described load arm and realize.As shown in Figure 6, described load arm 20 is provided with pulley bearings (Sheave Bearing).Concrete pulley bearings structure as shown in Figure 7, if Fig. 7 is according to one embodiment of the invention, described load arm arranges the structural representation of pulley bearings.Described load arm 20 is provided with pulley bearings 24, described pulley bearings 24 is also provided with rope sheave (Rope Sheave) 25.The quantity of described pulley bearings 24 and rope sheave 25 can be determined according to baudrier.Owing to have employed columniform load arm, can by arranging pulley bearings and rope sheave on load arm, can adopt different baudrier like this, Application comparison is flexible.
By adopting columniform load arm, the strength of the rope that rope circumference receives in concentric circumferences can be solved better, because cross-sectional plane is circular, the sidewall of load arm identical to the distance in the center of circle perpendicular to axial line various piece, therefore the shearing stress that is subject to of circumference each point is identical, that is the shearing stress that is subject to of load arm various piece is identical, and what therefore produce due to the stressed difference of different piece bendingly can alleviate.
Present invention also offers the hoisting crane comprising above-mentioned dolly.
Although the utility model discloses as above with preferred embodiment, the utility model is not defined in this.Any those skilled in the art, not departing from spirit and scope of the present utility model, all can make various changes or modifications, and therefore protection domain of the present utility model should be as the criterion with claim limited range.
Claims (8)
1. a dolly, comprising:
Reel, for Wound steel rope; And
Load arm, for one end of fixing steel rope;
It is characterized in that, described load arm for fixing steel rope part be cylindrical.
2. dolly as claimed in claim 1, it is characterized in that, described load arm has axial line, and the axis parallel of described load arm is in the axial line of described reel.
3. dolly as claimed in claim 1, it is characterized in that, one end of described steel rope is fixed by equalizing bar and described load arm, and described equalizing bar is fixed on described load arm side.
4. dolly as claimed in claim 1, is characterized in that, described steel rope is directly also fixing on described load arm.
5. dolly as claimed in claim 1, is characterized in that, described load arm is provided with pulley bearings.
6. dolly as claimed in claim 1, it is characterized in that, described load arm is also provided with rope sheave, described rope sheave is arranged on described pulley bearings, and described rope sheave is used for Wound steel rope.
7. dolly as claimed in claim 1, it is characterized in that, described load arm is fixed on the frame of described dolly by adapter plate.
8. a hoisting crane, comprises the dolly according to any one of claim 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642919.6U CN204281136U (en) | 2014-10-31 | 2014-10-31 | Dolly and hoisting crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420642919.6U CN204281136U (en) | 2014-10-31 | 2014-10-31 | Dolly and hoisting crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204281136U true CN204281136U (en) | 2015-04-22 |
Family
ID=52864321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420642919.6U Active CN204281136U (en) | 2014-10-31 | 2014-10-31 | Dolly and hoisting crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204281136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020128164A1 (en) * | 2018-12-21 | 2020-06-25 | Konecranes Global Corporation | Trolley of rope hoist |
-
2014
- 2014-10-31 CN CN201420642919.6U patent/CN204281136U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020128164A1 (en) * | 2018-12-21 | 2020-06-25 | Konecranes Global Corporation | Trolley of rope hoist |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160302 Address after: Finland Hyvinkaa Patentee after: KONECRANES PLC. Address before: Finland Xu Wenkai Patentee before: Konecranes PLC |