CN203359839U - Novel pin shaft standstill locking structure - Google Patents
Novel pin shaft standstill locking structure Download PDFInfo
- Publication number
- CN203359839U CN203359839U CN 201320334261 CN201320334261U CN203359839U CN 203359839 U CN203359839 U CN 203359839U CN 201320334261 CN201320334261 CN 201320334261 CN 201320334261 U CN201320334261 U CN 201320334261U CN 203359839 U CN203359839 U CN 203359839U
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- CN
- China
- Prior art keywords
- tower
- pin
- pin shaft
- slewing
- lug plate
- 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 relates to a novel pin shaft standstill locking structure, and belongs to the field of construction machinery safety protection. The pin shaft standstill locking structure comprises a slewing tower lug plate, a tower top lug plate and a connecting pin shaft for connecting the slewing tower lug plate and the tower top lug plate, wherein fixing plates are symmetrically welded on the external surface of one side of the slewing tower lug plate; the connecting pin shaft is fixed on the fixing plates through a fixing hole and fixing pin holes by a fixing pin. The structure of the pin shaft standstill locking structure is simple; the phenomena of radial rotation and axial play of a connecting pin can be effectively prevented through the fixing pin; the problem that the conventional pin shaft has great hidden danger on the safe use of a tower crane due to the occurrence of the rotation or play phenomenon is solved; the structure is particularly suitable for being used for connecting a slewing tower and a tower top, the slewing tower and a balance arm or the slewing tower and a cargo boom, of a construction tower crane.
Description
Technical field
The utility model relates to a kind of Novel pin shaft spline structure, belongs to the vehicle for construction safety protection field.
Background technology
In vehicle for construction, the slewing tower of tower machine and tower top, slewing tower and equilibrium arm, between slewing tower and crane arm, usually all by otic placode, adopt bearing pin to be connected, and adopt spring cotter to fix, connection bearing pin right alignment herein and tolerance fit require high, after use after a while, originally the pin shaft hole that had higher tolerance grade to coordinate there will be the phenomenon that causes tolerance clearance to strengthen because of wearing and tearing, the bearing pin simultaneously coordinated with it there will be rotation or play phenomenon, can cut off spring cotter when serious, cause bearing pin to come off, safe handling to the tower machine leaves major hidden danger.
Summary of the invention
The purpose of this utility model is: provides a kind of simple in structure, can effectively prevent that rotating or the play phenomenon from appearring in bearing pin, and then the Novel pin shaft spline structure eliminated safe hidden trouble.
The technical solution of the utility model is:
A kind of Novel pin shaft spline structure, comprise slewing tower otic placode, tower top otic placode and the connection bearing pin be connected with the tower top otic placode for the slewing tower otic placode, it is characterized in that: the outside face balanced welding of slewing tower otic placode one side is equipped with adapter plate, be provided with fixed pin holes on adapter plate, be provided with fixed orifice on connection bearing pin between adapter plate, connect bearing pin and be fixed on adapter plate by fixed orifice and fixed pin holes by set pin, described set pin termination is provided with spring cotter.
The beneficial effects of the utility model are:
This bearing pin spline structure is simple in structure, can effectively prevent radial rotating and the end float misalignment phenomenon of connecting pin by set pin, solved existing bearing pin because rotation or play phenomenon occurring, the safe handling of tower machine is left to the problem of major hidden danger, between the slewing tower that is specially adapted to tower crane and tower top or equilibrium arm and crane arm, be connected use.
The accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model.
In figure: 1, slewing tower otic placode, 2, the tower top otic placode, 3, connect bearing pin, 4, adapter plate, 5, set pin, 6, spring cotter.
The specific embodiment
This Novel pin shaft spline structure comprises slewing tower otic placode 1, tower top otic placode 2 and the connection bearing pin 3 be connected with tower top otic placode 2 for slewing tower otic placode 1.The outside face balanced welding of slewing tower otic placode 1 one sides is equipped with adapter plate 4, be provided with fixed pin holes on adapter plate 4, be provided with fixed orifice on connection bearing pin 3 between adapter plate 4, connect bearing pin 3 and be fixed on adapter plate 4 by fixed orifice and fixed pin holes by set pin 5, the termination of set pin 5 is provided with spring cotter 6.
This bearing pin spline structure is simple in structure, connect bearing pin 3 fixing by set pin 5, can effectively prevent from connecting bearing pin 3 radial rotating and end float misalignment phenomenon at work, and then solved existing bearing pin because rotation or play phenomenon occurring, the safe handling of tower machine is left to the problem of major hidden danger, between the slewing tower that is specially adapted to tower crane and tower top, slewing tower and equilibrium arm or slewing tower and crane arm, be connected use.
Claims (1)
1. a Novel pin shaft spline structure, comprise slewing tower otic placode (1), tower top otic placode (2) and the connection bearing pin (3) be connected with tower top otic placode (2) for slewing tower otic placode (1), it is characterized in that: the outside face balanced welding of slewing tower otic placode (1) one side is equipped with adapter plate (4), adapter plate is provided with fixed pin holes on (4), be provided with fixed orifice on connection bearing pin (3) between adapter plate (4), connecting bearing pin (3) is fixed on adapter plate (4) by fixed orifice and fixed pin holes by set pin (5), described set pin (5) termination is provided with spring cotter (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320334261 CN203359839U (en) | 2013-06-11 | 2013-06-11 | Novel pin shaft standstill locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320334261 CN203359839U (en) | 2013-06-11 | 2013-06-11 | Novel pin shaft standstill locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203359839U true CN203359839U (en) | 2013-12-25 |
Family
ID=49807632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320334261 Expired - Fee Related CN203359839U (en) | 2013-06-11 | 2013-06-11 | Novel pin shaft standstill locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203359839U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495031A (en) * | 2016-11-29 | 2017-03-15 | 徐州建机工程机械有限公司 | A kind of derrick crane tower-body standard section bindiny mechanism |
| CN107792794A (en) * | 2017-11-01 | 2018-03-13 | 浙江省建设机械集团有限公司 | Novel crane boom lower chord connection structure |
-
2013
- 2013-06-11 CN CN 201320334261 patent/CN203359839U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106495031A (en) * | 2016-11-29 | 2017-03-15 | 徐州建机工程机械有限公司 | A kind of derrick crane tower-body standard section bindiny mechanism |
| CN107792794A (en) * | 2017-11-01 | 2018-03-13 | 浙江省建设机械集团有限公司 | Novel crane boom lower chord connection structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20131225 Termination date: 20170611 |