CN204778491U - Tower machine slewing tower and upper bracket connecting pin roll prevent changeing device - Google Patents
Tower machine slewing tower and upper bracket connecting pin roll prevent changeing device Download PDFInfo
- Publication number
- CN204778491U CN204778491U CN201420862043.6U CN201420862043U CN204778491U CN 204778491 U CN204778491 U CN 204778491U CN 201420862043 U CN201420862043 U CN 201420862043U CN 204778491 U CN204778491 U CN 204778491U
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- pin
- tower
- round pin
- upper bracket
- stop collar
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- Snaps, Bayonet Connections, Set Pins, And Snap Rings (AREA)
Abstract
The utility model discloses a tower machine slewing tower and upper bracket connecting pin roll prevent changeing device, including round pin axle (1), upright round pin (2), split pin (3) and the locking lantern ring (4), the locking lantern ring (4) connect on round pin shaft hole unilateral structure one of which sidetracking circular port, the rectangular hole of another side milling, upright round pin (2) rectangular hole through the locking lantern ring (4), upright pinhole on driven -in pin axle (1) is worn out from the circular port of the locking lantern ring (4) opposite side, and should stand to sell and wear split pin (3) on (2). This structural style is the degree of freedom of banking pin axle effectively, make the round pin axle not only the axial can not leap up, also unable the rotation has promoted the reliability of round pin hub connection, also avoided with the passage of time after, round pin shaft hole wear deformation.
Description
Technical field
The utility model relates to a kind of pin shaft anti-rotating device, particularly relates to a kind of tower machine slewing tower and is connected pin shaft anti-rotating device with upper bracket.
Background technology
At present, generally adopt pinned connection between tower crane upper bracket upper bracket and slewing tower, bearing pin generally plugs spring cotter or vertical pin at bearing pin two ends after squeezing into pin shaft hole.This bearing pin in fixed form slowly can rotate along with the variation of load, and with the passage of time, pin shaft hole can be ground into ellipse, and bearing pin surface also there will be damage.
Be that the upper bracket that industry generally adopts is connected bearing pin fixed form with slewing tower as depicted in figs. 1 and 2, bearing pin (1) is through after main structure, and vertical pin (2) is inserted in bearing pin (1) end, prevents bearing pin (1) axial jump slippage pin shaft hole.This structural disadvantages is obvious, vertical pin (2) can only block bearing pin (1), prevent bearing pin (1) axial jump, slippage pin shaft hole, but cannot prevent bearing pin (1) from rotating, because slewing tower is by reverse load, bearing pin (1) slowly can rotate along with the variation of load, with the passage of time, pin shaft hole can be ground into ellipse, and bearing pin (1) surface also there will be damage.And bearing pin (1) rotates occasional and rubs axle head vertical pin (2) or spring cotter (3), bearing pin (1) is brought to jump the potential safety hazard of slippage pin shaft hole.
Summary of the invention
For above-mentioned existing technical matters, the utility model provides a kind of tower machine slewing tower to be connected pin shaft anti-rotating device with upper bracket, fixed form slewing tower being connected bearing pin with upper bracket changes, make bearing pin tightly can not axial jump, can not rotate, to limit all degree of freedom of bearing pin, guarantee the safe reliability of pinned connection.
For achieving the above object, the utility model provides a kind of tower machine slewing tower to be connected pin shaft anti-rotating device with upper bracket, comprises bearing pin, vertical pin, spring cotter, the stop collar; The described stop collar is connected on pin shaft hole one-sided configuration part, one sidetracking circular port, another side milling strip hole; Described vertical pin, by the strip hole of the stop collar, inserts the vertical pin hole on bearing pin, passes, and this vertical pin is installed with spring cotter from the circular port of stop collar opposite side.
The utility model has following advantage: 1, this version effectively can limit the degree of freedom of bearing pin, bearing pin not only axially can not be jumped, also cannot rotate, improve the reliability of pinned connection, after it also avoid with the passage of time, pin shaft hole abrasion deformation; 2, bearing pin installation process is convenient and swift, without the need to increasing other assembling parts and assembling complexity, avoids the phenomenon of loading error or neglected loading.
Accompanying drawing explanation
Fig. 1 is that existing tower crane upper bracket upper bracket is connected bearing pin fixed form with slewing tower;
Fig. 2 be in Fig. 1 A to structural representation;
Fig. 3 is the utility model hinge pin locking collar position of weld figure;
Fig. 4 is the utility model stop sleeve shaped part figure;
Fig. 5 be in Fig. 4 A-A to structural representation;
Fig. 6 is the utility model hinge pin locking collar and bearing pin assembly drowing;
In figure: 1, bearing pin, 2, vertical pin, 3, spring cotter, 4, the stop collar.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises bearing pin 1, vertical pin 2, spring cotter 3, the stop collar 4; The described stop collar 4 is connected on pin shaft hole one-sided configuration part, one sidetracking circular port, another side milling strip hole; Described vertical pin 2, by the strip hole of the stop collar 4, inserts the vertical pin hole on bearing pin 1, passes, and this vertical pin 2 is installed with spring cotter 3 from the circular port of the stop collar 4 opposite side.
During assembling, first take vertical pin 2 by the strip hole of the stop collar 4, insert the vertical pin hole on bearing pin 1, pass from the circular port of the stop collar 4 opposite side, then on vertical pin 2, wear spring cotter 3.If during assembling, the small sircle hole on the stop collar 4 is not aimed in the vertical pin hole on bearing pin 1, vertical pin 2 can be inserted the vertical pin hole on bearing pin 1, vertical pin is beaten with tup, bearing pin 1 is rotated, aims at the circular hole position of the stop collar 4 to the vertical pin hole on bearing pin 1, penetrate vertical pin 2.
Claims (2)
1. tower machine slewing tower is connected a pin shaft anti-rotating device with upper bracket, it is characterized in that, comprises bearing pin (1), vertical pin (2), spring cotter (3) and the stop collar (4); The described stop collar (4) is connected on pin shaft hole one-sided configuration part, one sidetracking circular port, another side milling strip hole; Described vertical pin (2), by the strip hole of the stop collar (4), inserts the vertical pin hole on bearing pin (1), passes, and this vertical pin (2) is installed with spring cotter (3) from the circular port of the stop collar (4) opposite side.
2. a kind of tower machine slewing tower according to claim 1 is connected pin shaft anti-rotating device with upper bracket, it is characterized in that, the described stop collar (4) take pipe as mother metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420862043.6U CN204778491U (en) | 2014-12-31 | 2014-12-31 | Tower machine slewing tower and upper bracket connecting pin roll prevent changeing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420862043.6U CN204778491U (en) | 2014-12-31 | 2014-12-31 | Tower machine slewing tower and upper bracket connecting pin roll prevent changeing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204778491U true CN204778491U (en) | 2015-11-18 |
Family
ID=54518583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420862043.6U Active CN204778491U (en) | 2014-12-31 | 2014-12-31 | Tower machine slewing tower and upper bracket connecting pin roll prevent changeing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204778491U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365051A (en) * | 2016-11-01 | 2017-02-01 | 徐州建机工程机械有限公司 | Tower top and upper supporting base connecting structure of tower crane |
| CN108840252A (en) * | 2018-09-17 | 2018-11-20 | 陕西黑猫焦化股份有限公司 | Cantilever crane |
| CN116803887A (en) * | 2023-06-27 | 2023-09-26 | 温州建设集团有限公司 | Method for disposing excessive abrasion of tower cap of tower crane and connecting pin hole of rotary tower body on site |
-
2014
- 2014-12-31 CN CN201420862043.6U patent/CN204778491U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106365051A (en) * | 2016-11-01 | 2017-02-01 | 徐州建机工程机械有限公司 | Tower top and upper supporting base connecting structure of tower crane |
| CN108840252A (en) * | 2018-09-17 | 2018-11-20 | 陕西黑猫焦化股份有限公司 | Cantilever crane |
| CN116803887A (en) * | 2023-06-27 | 2023-09-26 | 温州建设集团有限公司 | Method for disposing excessive abrasion of tower cap of tower crane and connecting pin hole of rotary tower body on site |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |