CN207497933U - Nacelle protective device - Google Patents
Nacelle protective device Download PDFInfo
- Publication number
- CN207497933U CN207497933U CN201721269198.9U CN201721269198U CN207497933U CN 207497933 U CN207497933 U CN 207497933U CN 201721269198 U CN201721269198 U CN 201721269198U CN 207497933 U CN207497933 U CN 207497933U
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- China
- Prior art keywords
- pulley
- pulling plate
- protective device
- nacelle
- nacelle protective
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Abstract
The utility model discloses a kind of nacelle protective device; the nacelle protective device is mounted on pulley bracket; the nacelle protective device includes pulling plate; the top of pulling plate is connected to the top of pulley bracket; the bottom end of pulling plate is connected to pulley connecting plate; pulley spindle is mounted on pulley connecting plate, and pulley is mounted on pulley spindle, and steel wire rope is wound on pulley.The both ends of pulling plate are wide, intermediate narrow, and wide portion passes through arc transition with narrow portion.The length of pulling plate is L2, thickness t, meets L2 >=5t.45 degree of projected lengths of the arc transition part that the width in the wide portion of pulling plate is L1, the width of narrow portion is W, wide portion and narrow portion are L3, meet L1 >=W+L3.The nacelle protective device of the utility model is directed to small-sized gantry crane, avoids using fluid pressure type nacelle protective device, by the pulling plate for increasing " Fuse Type "; the energy generated when absorbing nacelle by pulling plate fracture; it does not need to increase many additional components, simple in structure, maintaining is more prone to.
Description
Technical field
The utility model is related to the working protection device of gantry crane, the work more specifically to small-sized gantry crane is protected
Device.
Background technology
When gantry crane works, the situation of nacelle can be encountered.So-called nacelle refers to that gantry crane is capturing cargo from ship, especially
When it is crawl container, since the container of crawl is tangled by other containers or hull and lead to not normally capture packaging
Case.When nacelle occurs, grasp force can become very big, can cause to damage for gantry crane or lead to accident.In general, large-scale gantry crane
Fluid pressure type nacelle protective device is equipped with, gantry crane equipment is protected by hydraulic system when there is nacelle.
It is mainly used for the small-sized gantry crane of inland harbour, i.e. lifting altitude is not more than the bank of 35m no more than 28m, castor
Bridge is mainly used for the raising operation of cruiseway.Small-sized gantry crane equally can also encounter the problem of nacelle, due to small-sized gantry crane
Rise liter weight it is relatively small, when nacelle occurs, most of energy can by elasticity steel rope system and gantry crane structure oneself
Body absorbs, therefore virtually without nacelle protective device.But it can specially require configuration nacelle in some occasions or certain customers
Protective device.In the prior art not specifically for the nacelle protective device of small-sized gantry crane design, therefore it can all transplant large size
Fluid pressure type nacelle protective device in gantry crane.Fluid pressure type nacelle protective device includes the equipment such as oil cylinder, hydraulic station, platform, itself
Weight is larger, and usual own wt is not less than 20 tons.Use fluid pressure type nacelle protective device can cause small-sized gantry crane itself
Weight increases by 20 tons or more so that daily use, repair and maintenance is all costly and complicated.
Utility model content
The utility model proposes a kind of nacelle protective devices for small-sized gantry crane.
An embodiment according to the present utility model proposes a kind of nacelle protective device, which, which is mounted on, slides
On wheel support, which includes pulling plate, and the top of pulling plate is connected to the top of pulley bracket, the bottom end connection of pulling plate
To pulley connecting plate, pulley spindle is mounted on pulley connecting plate, and pulley is mounted on pulley spindle, and steel wire rope is wound on pulley.
In one embodiment, the both ends of pulling plate are wide, intermediate narrow, and wide portion passes through arc transition with narrow portion.
In one embodiment, the length of pulling plate be L2, thickness t, meet L2 >=5t.
In one embodiment, the width in the wide portion of pulling plate is L1, the width of narrow portion is W, the circular arc mistake of width portion and narrow portion
45 degree of projected lengths for crossing part are L3, meet L1 >=W+L3.
In one embodiment, it works normally, pulling plate is intact, and nacelle, pulling plate fracture occurs.
In one embodiment, which further includes pulley groove, and pulley groove is arranged on pulley bracket, pulley
In pulley groove, the Impact direction of pulley groove towards steel wire rope extends axle position.Pulling plate is intact, and pulley spindle is fixed on pulley by pulling plate
The first end of slot.Pulling plate is broken, and steel wire rope pulls pulley, and pulley spindle is driven to be moved along pulley groove to second end.
In one embodiment, which further includes buffer, and buffer is mounted on pulley bracket, buffering
Device is directed at pulley spindle, and the end of buffer is aligned with the second end of pulley groove.
In one embodiment, the end of buffer is coated with flexible material.
In one embodiment, which is suitable for lifting altitude no more than 28m, castor no more than 35m
Small-sized gantry crane.
The nacelle protective device of the utility model is directed to small-sized gantry crane, avoids, using fluid pressure type nacelle protective device, leading to
The pulling plate of increase " Fuse Type " is crossed, the energy generated when absorbing nacelle by pulling plate fracture does not need to increase many additional portions
Part, simple in structure, maintaining is more prone to.
Description of the drawings
The above and other feature of the utility model, property and advantage will be by with reference to the accompanying drawings and examples
It describing and becomes apparent, reference numeral identical in the accompanying drawings always shows identical feature, wherein：
Fig. 1 discloses the Facad structure figure of the pulley part of the nacelle protective device using the utility model.
Fig. 2 discloses the construction profile of the pulley part of the nacelle protective device using the utility model.
Fig. 3 is the partial enlarged view of Fig. 2, discloses the drawing of the nacelle protective device of an embodiment according to the present utility model
The structure of plate.
Specific embodiment
The utility model proposes nacelle protective device be suitable for lifting altitude no more than 28m, castor no more than 35m
Small-sized gantry crane.With reference to shown in figure 1 and Fig. 2, Fig. 1 and Fig. 2 disclose the pulley of the nacelle protective device using the utility model
The structure chart of component.Wherein Fig. 1 is Facad structure figure, and Fig. 2 is construction profile.
The nacelle protective device is mounted on pulley bracket 104, which includes pulling plate 102, pulling plate 102
Top is connected to the top of pulley bracket 104, and the bottom end of pulling plate 102 is connected to pulley connecting plate 106, and pulley spindle 108, which is mounted on, to be slided
It takes turns on connecting plate 106, pulley 110 is mounted on pulley spindle 108, and steel wire rope 112 is wound on pulley 110.Refering to what is shown in Fig. 3, Fig. 3 is
The partial enlarged view of Fig. 2 is exaggerated the structure in circle A in Fig. 2.It is real that Fig. 3 discloses according to the present utility model one
Apply the structure of the pulling plate of the nacelle protective device of example.The shape of pulling plate 102 is that both ends are wide, intermediate narrow, and wide portion passes through circle with narrow portion
Arc transition.Pulling plate 102 needs to meet following size requirement：The length of pulling plate is L2, thickness t, meets L2 >=5t.Pulling plate
45 degree of projected lengths of the arc transition part that the width in wide portion is L1, the width of narrow portion is W, wide portion and narrow portion are L3, are met
L1≥W+L3。
When small-sized gantry crane works normally, steel wire rope 112 applies pulley 110 normal power, and pulling plate 102 has been kept
It is good.When nacelle occurs for small-sized gantry crane, the power that steel wire rope 112 applies pulley 110 becomes larger so that pulling plate 102 deforms.
When steel wire rope 112 is more than threshold value to the power that pulley 110 applies, pulling plate 102 is broken.Pulling plate 102 is broken, and triggers nacelle protection
Mechanism, lifting motor power-off stop raising process, and investigation failure is responded in concurrent responding.
With continued reference to shown in Fig. 1 and Fig. 2, in the illustrated embodiment, in order to compensate for the variation of rope capacity during nacelle
Amount, the nacelle protective device further include pulley groove 142, and pulley groove 142 is arranged on pulley bracket 104, and pulley spindle 108, which is located at, to be slided
In race 142, the Impact direction of pulley groove 142 towards steel wire rope extends.In the illustrated embodiment, the stress of steel wire rope 112
Direction is to the right.In normal work, pulling plate 102 is intact, and pulling plate 102 is connected to pulley spindle 108 by pulley connecting plate 106, sliding
Wheel shaft 108 is fixed on the first end of pulley groove 142, i.e. left-hand end in figure by pulling plate 102.When generation nacelle leads to pulling plate
During 102 fracture, pulling plate is no longer connect with pulley connecting plate 106, and steel wire rope 112 pulls pulley 110 along its Impact direction, is driven and is slided
Wheel shaft 108 is moved along pulley groove 142 to second end, and second end is the right-hand end in figure.
For part lifting velocity small-sized gantry crane faster, in order to mitigate the impact between pulley spindle and pulley groove, also
There is provided buffers 114.Buffer 114 is mounted on pulley bracket 104, and buffer 114 is directed at pulley spindle 108, buffer 114
End be aligned with the second end of pulley groove 142.The end of buffer 114 is coated with flexible material.When pulley spindle 108 is to pulley
During the second end movement of slot 142, it can be contacted first with buffer 114 when close to second end, the flexible material of 114 end of buffer
Material can play cushioning effect, mitigate the impact for pulley spindle and pulley groove.
The nacelle protective device of the utility model is directed to small-sized gantry crane, avoids, using fluid pressure type nacelle protective device, leading to
The pulling plate of increase " Fuse Type " is crossed, the energy generated when absorbing nacelle by pulling plate fracture does not need to increase many additional portions
Part, simple in structure, maintaining is more prone to.
Above-described embodiment, which is available to, is familiar with person in the art to realize or using the utility model, be familiar with ability
The personnel in domain can in the case where not departing from the utility model thought of the utility model, above-described embodiment is made various modifications or
Variation, thus the scope of protection of the utility model is not limited by above-described embodiment, and should meet claims to mention
Inventive features maximum magnitude.
Claims (9)
1. a kind of nacelle protective device, which is characterized in that the nacelle protective device is mounted on pulley bracket, nacelle protection dress
It puts including pulling plate, the top of pulling plate is connected to the top of pulley bracket, and the bottom end of pulling plate is connected to pulley connecting plate, pulley spindle installation
On pulley connecting plate, pulley is mounted on pulley spindle, and steel wire rope is wound on pulley.
2. nacelle protective device as described in claim 1, which is characterized in that the both ends of the pulling plate are wide, intermediate narrow, wide portion with
Narrow portion passes through arc transition.
3. nacelle protective device as claimed in claim 2, which is characterized in that the length of the pulling plate is L2, thickness t, full
Sufficient L2 >=5t.
4. nacelle protective device as claimed in claim 2, which is characterized in that the width in the wide portion of the pulling plate is L1, narrow portion
Width be 45 degree of projected lengths of arc transition part of W, wide portion and narrow portion be L3, meet L1 >=W+L3.
5. nacelle protective device as described in claim 1, which is characterized in that normal work, pulling plate is intact, and nacelle occurs, and draws
Plate is broken.
6. nacelle protective device as described in claim 1, which is characterized in that further include：Pulley groove, pulley groove are arranged on pulley
On stent, pulley spindle is located in pulley groove, and the Impact direction of pulley groove towards steel wire rope extends；
Pulling plate is intact, and pulley spindle is fixed on the first end of pulley groove by pulling plate；
Pulling plate is broken, and steel wire rope pulls pulley, and pulley spindle is driven to be moved along pulley groove to second end.
7. nacelle protective device as claimed in claim 6, which is characterized in that further include：Buffer, buffer are mounted on pulley
On stent, buffer alignment pulley spindle, the end of buffer is aligned with the second end of pulley groove.
8. nacelle protective device as claimed in claim 7, which is characterized in that the end of buffer is coated with flexible material.
9. nacelle protective device as described in claim 1, which is characterized in that the nacelle protective device is suitable for lifting altitude not
More than the small-sized gantry crane that 28m, castor are not more than 35m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269198.9U CN207497933U (en) | 2017-09-29 | 2017-09-29 | Nacelle protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269198.9U CN207497933U (en) | 2017-09-29 | 2017-09-29 | Nacelle protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207497933U true CN207497933U (en) | 2018-06-15 |
Family
ID=62499733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721269198.9U Active CN207497933U (en) | 2017-09-29 | 2017-09-29 | Nacelle protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207497933U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132873A (en) * | 2018-10-25 | 2019-01-04 | 朱丽蓉 | The restoration methods of nacelle protective device, crane and nacelle protective device |
| CN112938759A (en) * | 2021-03-15 | 2021-06-11 | 三一海洋重工有限公司 | Sling control device and anti-hanging cabin shore container crane |
| CN117088260A (en) * | 2023-10-18 | 2023-11-21 | 南通中远海运重工装备有限公司 | Damper type hanging cabin protection device of shore container bridge crane |
-
2017
- 2017-09-29 CN CN201721269198.9U patent/CN207497933U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132873A (en) * | 2018-10-25 | 2019-01-04 | 朱丽蓉 | The restoration methods of nacelle protective device, crane and nacelle protective device |
| CN112938759A (en) * | 2021-03-15 | 2021-06-11 | 三一海洋重工有限公司 | Sling control device and anti-hanging cabin shore container crane |
| CN112938759B (en) * | 2021-03-15 | 2023-07-25 | 三一海洋重工有限公司 | Lifting appliance control device and anti-hanging cabin shore container crane |
| CN117088260A (en) * | 2023-10-18 | 2023-11-21 | 南通中远海运重工装备有限公司 | Damper type hanging cabin protection device of shore container bridge crane |
| CN117088260B (en) * | 2023-10-18 | 2023-12-26 | 南通中远海运重工装备有限公司 | Damper type hanging cabin protection device of shore container bridge crane |
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