CN201914865U - Pin shaft easy to assemble and disassemble - Google Patents
Pin shaft easy to assemble and disassemble Download PDFInfo
- Publication number
- CN201914865U CN201914865U CN201020611045XU CN201020611045U CN201914865U CN 201914865 U CN201914865 U CN 201914865U CN 201020611045X U CN201020611045X U CN 201020611045XU CN 201020611045 U CN201020611045 U CN 201020611045U CN 201914865 U CN201914865 U CN 201914865U
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- CN
- China
- Prior art keywords
- bearing pin
- crawler crane
- pin shaft
- dismounting
- easy installing
- 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 - Fee Related
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Abstract
The utility model provides a pin shaft easy to assemble and disassemble used for the connection between the adjacent arm supports of a crawler crane, wherein both ends of the pin shaft have a conical structure, and the center of the pin shaft has a cylindrical structure; when the top end surface of the conical structure is flush with the arm support connecting hole of the crawler crane, the coordination distance between the pin shaft and the arm support connecting hole of the crawler crane is less than 10 mm. The pin shaft easy to assemble and disassemble is greatly convenient to assemble and disassemble the arm support of the crawler crane by adopting the conical structures at both ends, thereby improving the work efficiency of the crawler crane, avoiding the unsafe factors of the traditional arm support when being assembled and disassembled, and guaranteeing the safe operation of operating worker.
Description
Technical field
The utility model relates to a kind of bearing pin, especially, relates to a kind of bearing pin that is applied to the easy installing/dismounting of crawler crane boom bonded assembly.
Background technology
Usually, crawler crane boom is interconnected by a plurality of arms joints and forms.The mode that most employing connecting pin passes the relative connection earhole of two arms joint that interconnects between the arm joint realizes.
Yet,, therefore, when the conversion work place, need dismantle accordingly and be connected again jib usually because crawler crane self has bigger weight.In the prior art, the Assembly ﹠Disassembly of bearing pin generally adopts the mode that iron hammer directly beats.Because the strength that iron hammer beats is excessive, also needs usually earlier the helpers pad to be located on the bearing pin, and then beat accordingly.Said method has not only influenced the work efficiency of crawler crane boom Assembly ﹠Disassembly, and has some potential safety hazards, causes safety misadventure easily.
The utility model content
The purpose of this utility model is to provide a kind of bearing pin of easy installing/dismounting, and it can carry out Assembly ﹠Disassembly easily, thereby has guaranteed the efficient of crawler crane boom loading and unloading.
To achieve these goals, the bearing pin of a kind of easy installing/dismounting of the present utility model, be used for the connection between the adjacent jib of crawler crane, wherein, the two ends of described bearing pin are the circular cone type structure, central authorities are cylindrical structural, when the top end face of described circular cone type structure is concordant with the crawler crane boom connecting bore, cooperate distance less than 10mm between described bearing pin and the described crawler crane boom connecting bore.
According to the bearing pin of above-mentioned easy installing/dismounting, wherein, the circular cone type structure at described bearing pin two ends is symmetrical.
According to the bearing pin of above-mentioned easy installing/dismounting, wherein, described bearing pin is a steel.
Further, according to the bearing pin of above-mentioned easy installing/dismounting, wherein, described steel is a corrosion-resistant steel.
According to the bearing pin of above-mentioned easy installing/dismounting, wherein, described bearing pin is respectively arranged with a through hole in two ends up and down, is used to install the safety pin pin.
Further, according to the bearing pin of above-mentioned easy installing/dismounting, wherein, described through hole is arranged on the intersection of described circular cone type structure and described cylindrical structural.
Therefore, the bearing pin of a kind of easy installing/dismounting of the present utility model is by adopting two terminal circle bevel-type structure, greatly facilitate the Assembly ﹠Disassembly of crawler crane boom, thereby improved the work efficiency of crawler crane, and the safety hazard when having avoided traditional jib to load and unload has guaranteed operator's safe operation.
Description of drawings
Fig. 1 is the mounting structure scheme drawing of the bearing pin of a kind of easy installing/dismounting of the present utility model;
Fig. 2 is the local enlarged diagram of Fig. 1;
The critical conditions scheme drawing that Fig. 3 removes in the jib connecting bore for the bearing pin of a kind of easy installing/dismounting of the present utility model.
The specific embodiment
The utility model is described in more detail below in conjunction with accompanying drawing.
Fig. 1 is the mounting structure scheme drawing of the bearing pin of a kind of easy installing/dismounting of the present utility model.As seen from the figure, when jib 1 and jib 2 are installed, at first bearing pin 4 is penetrated in the corresponding connecting bore of two jibs; Then, two indivedual needle pins 3 are inserted through hole on the bearing pin 4 respectively, to carry out spacing to two jibs that link to each other.
Fig. 2 is the local enlarged diagram of Fig. 1.As seen from the figure, bearing pin 4 two ends are conical structure, and middle body is a cylindrical structural, and the conical structure at two ends is symmetrical.Two through holes that are used to insert safety pin pin 3 just are separately positioned on the intersection of conical structure and conical structure.
The critical conditions scheme drawing that Fig. 3 removes in the jib connecting bore for the bearing pin of a kind of easy installing/dismounting of the present utility model.As shown in the figure, when needs dismounting jib, at first remove safety pin pin 3, directly beat any end face of bearing pin then, can arrive critical conditions shown in Figure 3 with hammer.At this moment, only with hand just can take out bearing pin 4 easily from the jib connecting bore.In order to realize above-mentioned technique effect, when an end face and the end face of jib connecting bore of bearing pin 4 are mutually concordant, cooperating apart from must be between bearing pin 4 and the jib connecting bore less than 10mm.Only in this way, just can guarantee the appropriateness coupling between bearing pin 4 and the jib connecting bore, realize only needing just the bearing pin under the critical conditions 4 to be removed from the jib connecting bore with very little power.
The bearing pin of the easy installing/dismounting of the utility model need not pad and establishes auxiliary material when Assembly ﹠Disassembly, only needs bearing pin is beaten to critical conditions, can take out with hand, and actv. has guaranteed the safety of operation.
More than specific embodiment of the utility model is described in detail, but the utility model is not restricted to specific embodiment described above, it is just as example.To those skilled in the art, any equivalent modifications that the bearing pin of this easy installing/dismounting is carried out and substituting also all among category of the present utility model.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present utility model, all should be encompassed in the scope of the present utility model.
Claims (6)
1. the bearing pin of an easy installing/dismounting, be used for the connection between the adjacent jib of crawler crane, it is characterized in that, the two ends of described bearing pin are the circular cone type structure, central authorities are cylindrical structural, when the top end face of described circular cone type structure is concordant with the crawler crane boom connecting bore, cooperate distance less than 10mm between described bearing pin and the described crawler crane boom connecting bore.
2. the bearing pin of easy installing/dismounting according to claim 1 is characterized in that, the circular cone type structure at described bearing pin two ends is symmetrical.
3. the bearing pin of easy installing/dismounting according to claim 1 is characterized in that, described bearing pin is a steel.
4. the bearing pin of easy installing/dismounting according to claim 3 is characterized in that, described steel is a corrosion-resistant steel.
5. the bearing pin of easy installing/dismounting according to claim 1 is characterized in that, described bearing pin is respectively arranged with a through hole in two ends up and down, is used to install the safety pin pin.
6. the bearing pin of easy installing/dismounting according to claim 5 is characterized in that, described through hole is arranged on the intersection of described circular cone type structure and described cylindrical structural.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020611045XU CN201914865U (en) | 2010-11-17 | 2010-11-17 | Pin shaft easy to assemble and disassemble |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201020611045XU CN201914865U (en) | 2010-11-17 | 2010-11-17 | Pin shaft easy to assemble and disassemble |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201914865U true CN201914865U (en) | 2011-08-03 |
Family
ID=44414673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201020611045XU Expired - Fee Related CN201914865U (en) | 2010-11-17 | 2010-11-17 | Pin shaft easy to assemble and disassemble |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201914865U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424331A (en) * | 2011-11-28 | 2012-04-25 | 中联重科股份有限公司 | Arm pin mechanism of suspension arm and hoisting equipment comprising arm pin mechanism |
| CN102556857A (en) * | 2011-12-12 | 2012-07-11 | 中联重科股份有限公司 | Truss arm butt joint structure, truss arm with truss arm butt joint structure and truss arm crane |
| CN102774758A (en) * | 2012-08-03 | 2012-11-14 | 山东送变电工程公司 | Derrick convenient for dismounting |
| WO2013152573A1 (en) * | 2012-04-11 | 2013-10-17 | 中联重科股份有限公司 | Pin shaft connection structure, mounting and dismounting methods thereof, and tower crane |
-
2010
- 2010-11-17 CN CN201020611045XU patent/CN201914865U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424331A (en) * | 2011-11-28 | 2012-04-25 | 中联重科股份有限公司 | Arm pin mechanism of suspension arm and hoisting equipment comprising arm pin mechanism |
| CN102424331B (en) * | 2011-11-28 | 2013-08-07 | 中联重科股份有限公司 | Arm pin mechanism of suspension arm and hoisting equipment comprising arm pin mechanism |
| CN102556857A (en) * | 2011-12-12 | 2012-07-11 | 中联重科股份有限公司 | Truss arm butt joint structure, truss arm with truss arm butt joint structure and truss arm crane |
| WO2013152573A1 (en) * | 2012-04-11 | 2013-10-17 | 中联重科股份有限公司 | Pin shaft connection structure, mounting and dismounting methods thereof, and tower crane |
| CN102774758A (en) * | 2012-08-03 | 2012-11-14 | 山东送变电工程公司 | Derrick convenient for dismounting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: ZHEJIANG SANY EQUIPMENT CO., LTD. Free format text: FORMER OWNER: KUNSHAN SANY MACHINERY CO., LTD. Effective date: 20140520 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 215300 SUZHOU, JIANGSU PROVINCE TO: 313028 HUZHOU, ZHEJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140520 Address after: 313028 building, floor 2, standard factory building, Cao Yi village, eight Li Town, Huzhou, Zhejiang Patentee after: Zhejiang Sany Equipment Co., Ltd. Address before: 215300 East Ring Road, Kunshan Development Zone, Jiangsu Patentee before: Kunshan Sany Machinery Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110803 Termination date: 20161117 |