CN203558771U - Crane boom - Google Patents
Crane boom Download PDFInfo
- Publication number
- CN203558771U CN203558771U CN201320618439.1U CN201320618439U CN203558771U CN 203558771 U CN203558771 U CN 203558771U CN 201320618439 U CN201320618439 U CN 201320618439U CN 203558771 U CN203558771 U CN 203558771U
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- CN
- China
- Prior art keywords
- arm
- auxiliary
- head
- arm head
- main arm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a crane boom. The crane boom comprises a top knuckle arm, wherein a main arm head is arranged at the end part of the top knuckle arm, an upper pin shaft and a lower pin shaft, which are connected with an auxiliary arm, are respectively arranged at the upper part and the middle-lower part of the main arm head, and a pulley block structure which is connected with a hook is arranged at the lower part of the main arm head. A single ejector pulley is arranged on the front end of the lower part of the main arm head. The crane boom has the advantages and beneficial effects that the cross sectional dimension of the auxiliary arm can be effectively reduced, the weight of the auxiliary arm can be reduced, and the hoisting property of the auxiliary arm can be improved; the stress of the main arm head is reduced, and the strength of the main arm head is improved; the interference problem between the auxiliary arm and the single ejector pulley can be effectively avoided; a steel wire rope wedge is convenient to pass through, and the time for replacing the work multiply power can be saved.
Description
Technical field
The utility model belongs to hoisting crane technical field, especially relates to a kind of crane arm support.
Background technology
Along with expanding economy, the crane applications of little tonnage is more and more extensive.
General in the jib structure of little tonnage hoisting crane in existing technology, the upper and lower of principal arm arm head arranges two bearing pins and is connected with auxiliary, the bearing pin of bottom has been installed the pulley block structure being connected with suspension hook, such structure causes the sectional dimension of auxiliary bigger than normal, reduced the lifting performance of auxiliary, also the anti-twisting property that is unfavorable for principal arm arm head, reduces arm head intensity.In addition, traditional project organization easily causes arm head list top block and auxiliary to be interfered.
Summary of the invention
Problem to be solved in the utility model is to provide and a kind ofly can obviously promotes auxiliary lifting performance, strengthens the crane arm support of principal arm jib tip structure intensity.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of crane arm support, comprise epimerite arm, the end of described epimerite arm is provided with principal arm arm head, and the top of described principal arm arm head is provided with respectively with middle and lower part upper pin and the lower bearing pin being connected with auxiliary, and the bottom of principal arm arm head is provided with the pulley block structure being connected with suspension hook.
Preferably, described principal arm arm head bottom arranges single top block foremost.
Advantage and the good effect that the utlity model has are:
1, energy actv. reduces the sectional dimension of auxiliary, alleviates the weight of auxiliary, improves the lifting performance of auxiliary;
2, reduce the stressed of principal arm arm head, improved the intensity of principal arm arm head;
3, effectively avoided the interference problem of auxiliary and single top block;
4, be convenient to steel rope rope wedge and pass, for the multiplying power that more changes jobs is saved time.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the schematic diagram after installation auxiliary of the present utility model.
In figure:
1, single top block 2, assembly pulley 3, lower bearing pin
4, upper pin 5, epimerite arm 6, auxiliary
7, spider
The specific embodiment
As shown in Figure 1, 2, a kind of crane arm support of the present utility model, comprises epimerite arm 5, and the end of described epimerite arm 5 is provided with principal arm arm head,
The top of described principal arm arm head is provided with respectively with middle and lower part upper pin 4 and the lower bearing pin 3 being connected with auxiliary 6, this structure not only makes longitudinal span of the spider 7 on auxiliary 6 reduce, actv. reduces the sectional dimension of auxiliary 6, alleviate the weight of auxiliary, improved the lifting performance of auxiliary, and reduce the stressed of principal arm arm head, improved structural strength and the anti-twisting property of principal arm arm head;
The bottom of principal arm arm head is provided with the assembly pulley 2 being connected with suspension hook, and assembly pulley 2 leaves certain gap with the arm cylinder of epimerite arm 5, is convenient to steel rope rope wedge and passes, for the multiplying power that more changes jobs has been saved the time;
Finally described principal arm arm head bottom single top block 1 is set foremost, larger with auxiliary 6 gaps, effectively avoided the interference problem of auxiliary 6 with single top block 1.
Working process of the present utility model is:
Above an embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalization variations of doing according to the utility model application range and improvement etc., within all should still belonging to patent covering scope of the present utility model.
Claims (2)
1. a crane arm support, comprise epimerite arm, it is characterized in that: the end of described epimerite arm is provided with principal arm arm head, the top of described principal arm arm head is provided with respectively with middle and lower part upper pin and the lower bearing pin being connected with auxiliary, and the bottom of principal arm arm head is provided with the pulley block structure being connected with suspension hook.
2. crane arm support according to claim 1, is characterized in that: described principal arm arm head bottom single top block is set foremost.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320618439.1U CN203558771U (en) | 2013-09-29 | 2013-09-29 | Crane boom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320618439.1U CN203558771U (en) | 2013-09-29 | 2013-09-29 | Crane boom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203558771U true CN203558771U (en) | 2014-04-23 |
Family
ID=50508504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320618439.1U Expired - Lifetime CN203558771U (en) | 2013-09-29 | 2013-09-29 | Crane boom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203558771U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516995A (en) * | 2016-11-13 | 2017-03-22 | 无锡晟欧船舶设备有限公司 | Limiting and fixing crane |
| CN106744356A (en) * | 2016-11-13 | 2017-05-31 | 无锡晟欧船舶设备有限公司 | A kind of spacing rubbish hangs |
-
2013
- 2013-09-29 CN CN201320618439.1U patent/CN203558771U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106516995A (en) * | 2016-11-13 | 2017-03-22 | 无锡晟欧船舶设备有限公司 | Limiting and fixing crane |
| CN106744356A (en) * | 2016-11-13 | 2017-05-31 | 无锡晟欧船舶设备有限公司 | A kind of spacing rubbish hangs |
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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: 20140423 |