CN201786006U - Rail leveling mechanism - Google Patents
Rail leveling mechanism Download PDFInfo
- Publication number
- CN201786006U CN201786006U CN2010202317386U CN201020231738U CN201786006U CN 201786006 U CN201786006 U CN 201786006U CN 2010202317386 U CN2010202317386 U CN 2010202317386U CN 201020231738 U CN201020231738 U CN 201020231738U CN 201786006 U CN201786006 U CN 201786006U
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- CN
- China
- Prior art keywords
- oil cylinder
- telescopic arm
- oil
- hinged
- rail
- 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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- Forklifts And Lifting Vehicles (AREA)
Abstract
A rail leveling mechanism comprises a rotary platform, a telescopic arm and a rail, wherein the rotary platform is hinged with the telescopic arm and a first oil cylinder respectively, and the first oil cylinder is hinged with the telescopic arm, thereby forming a triangular adjusting mechanism at hinge positions among the rotary platform, the telescopic arm and the first oil cylinder. The other end of the telescopic arm is hinged with the rail, and a second oil cylinder is hinged on the rail and hinged to the telescopic arm simultaneously, thereby forming another triangular adjusting mechanism among the telescopic arm, the rail and the second oil cylinder. A rodless cavity of the first oil cylinder is connected with a rod cavity of the second oil cylinder, and hydraulic oil circulates between the two oil cylinders. As a rod cavity of the first oil cylinder and a rodless cavity of the second oil cylinder are connected synchronously as well as the rodless cavity of the first oil cylinder and the rod cavity of the second oil cylinder, the hydraulic oil circulates between the two oil cylinders, real-time linkage of the two oil cylinders is guaranteed, and operators on the rail cannot feel intermittent leveling. Additionally, the pure hydraulic structure is safer than electrohydraulic control structures.
Description
Technical field
The utility model relates to a kind of fence levelling gear of aerial work platform.
Background technology
The fence levelling gear of work high above the ground is extremely important for operating personnel, directly has influence on the stability of job platform, can have influence on operating personnel's personal safety.Usually this class mechanism all is that electrichydraulic control is finished, and has certain potential safety hazard.
The utility model content
The utility model provides a kind of fence levelling gear that is used for aerial work platform, guarantees that fence remains level in the angular range of telescopic arm luffing, makes things convenient for operating personnel's work in the fence.
The purpose of this utility model is achieved through the following technical solutions.
A kind of fence levelling gear, comprise turntable, telescopic arm and fence, turntable is hinged with telescopic arm and an oil cylinder respectively, and oil cylinder and telescopic arm are hinged, have just formed leg-of-mutton governor motion in turntable, telescopic arm and an oil cylinder hinge position each other like this; The other end and the fence of described telescopic arm are hinged, are hinged with oil cylinder on the fence No. two, and No. two oil cylinder is hinged on the telescopic arm simultaneously, have also formed leg-of-mutton governor motion like this between telescopic arm, fence and No. two oil cylinders; The rodless cavity of an oil cylinder is connected with the rod chamber of No. two oil cylinders, and hydraulic oil circulates between two oil cylinders.
Because this mechanism is connected the rod chamber of an oil cylinder and the rodless cavity of No. two oil cylinders, the rodless cavity of an oil cylinder is connected with the rod chamber of No. two oil cylinders, hydraulic oil circulates between two oil cylinders, so guaranteed that the interlock of two oil cylinders is real-time, the operating personnel on the fence do not have the intermittently sensation of leveling.In addition, the structure of simple hydraulic pressure is also than the structure safety of electrichydraulic control.
Description of drawings
With embodiment the utility model is described in further detail with reference to the accompanying drawings below.
Fig. 1 is the structure chart of fence levelling gear.
The specific embodiment
As shown in Figure 1, a kind of fence levelling gear, A, B, C and D, E, F constitute two triangles respectively: the A point is fixed on the turntable, is the following hinge of an oil cylinder 1; The B point connects turntable 2 and telescopic arm 3 by bearing pin; The C point is the last hinge of an oil cylinder 1 on telescopic arm 3.D point and E point are the points on the telescopic arm 3, and the E point is connected with fence 4 by bearing pin, and the D point is the following hinge of No. two oil cylinders 5, and the F point is the point on the fence 4, also are the last hinges of No. two oil cylinders 5 simultaneously.
Set the length of AB and the equal in length of DE, the equal in length of BC and EF, the condition that fence remains level are the values that reduces that the value added of BC and AB angle equals DE and EF angle.Set the position of A, B, C and D, E, F, the value added that makes it to satisfy BC and AB angle equals the value that reduces of DE and EF angle, and the length value added of AC equals the value that reduces of DF length.At this moment, the thick stick chamber that has of oil cylinder 1 and oil cylinder 5 is connected respectively with the Wu Gang chamber, can realizes fence all maintenance levels at an arbitrary position.
Person skilled in the art should be familiar with, above enforcement only is to be used for illustrating the purpose of this utility model, and be not with opposing qualification of the present utility model, as long as in essential scope of the present utility model, to the variation of the above embodiment, the scope that modification all will drop on claim of the present utility model.
Claims (1)
1. fence levelling gear, comprise turntable, telescopic arm and fence, it is characterized in that turntable is hinged with telescopic arm and an oil cylinder respectively, oil cylinder and telescopic arm are hinged, have just formed leg-of-mutton governor motion in turntable, telescopic arm and an oil cylinder hinge position each other like this; The other end and the fence of described telescopic arm are hinged, are hinged with oil cylinder on the fence No. two, and No. two oil cylinder is hinged on the telescopic arm simultaneously, have also formed leg-of-mutton governor motion like this between telescopic arm, fence and No. two oil cylinders; The rodless cavity of an oil cylinder is connected with the rod chamber of No. two oil cylinders, and hydraulic oil circulates between two oil cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202317386U CN201786006U (en) | 2010-06-22 | 2010-06-22 | Rail leveling mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202317386U CN201786006U (en) | 2010-06-22 | 2010-06-22 | Rail leveling mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201786006U true CN201786006U (en) | 2011-04-06 |
Family
ID=43817976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202317386U Expired - Fee Related CN201786006U (en) | 2010-06-22 | 2010-06-22 | Rail leveling mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201786006U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107253695A (en) * | 2017-08-17 | 2017-10-17 | 湖南星邦重工有限公司 | Aerial lift device and its fly jib system |
-
2010
- 2010-06-22 CN CN2010202317386U patent/CN201786006U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107253695A (en) * | 2017-08-17 | 2017-10-17 | 湖南星邦重工有限公司 | Aerial lift device and its fly jib system |
| CN107253695B (en) * | 2017-08-17 | 2023-11-17 | 湖南星邦智能装备股份有限公司 | Aerial working equipment and fly arm system thereof |
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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 |
Granted publication date: 20110406 Termination date: 20140622 |
|
| EXPY | Termination of patent right or utility model |