CN202542751U - Screw type jib lubbing mechanism for gantry crane - Google Patents
Screw type jib lubbing mechanism for gantry crane Download PDFInfo
- Publication number
- CN202542751U CN202542751U CN 201220120086 CN201220120086U CN202542751U CN 202542751 U CN202542751 U CN 202542751U CN 201220120086 CN201220120086 CN 201220120086 CN 201220120086 U CN201220120086 U CN 201220120086U CN 202542751 U CN202542751 U CN 202542751U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw
- gantry crane
- jib lubbing
- screw type
- 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 screw type jib lubbing mechanism for a gantry crane. The screw type jib lubbing mechanism is characterized by comprising a substrate (31), a steel jacket (32), a nut (33), a screw (34), a dust cover (35) and a driving device, wherein the dust cover (35) is arranged on the substrate (31); the screw (34) is arranged in the dust cover (35); the nut (33) is sleeved on the screw (34); the driving device comprises a motor (41), a brake (42), a floating shaft (43), a coupler (44), a reducer (45) and a gear (46) which are connected in sequence; and the gear (46) is meshed with the nut (33). The screw type jib lubbing mechanism for the gantry crane can provide more precise and safer jib lubbing motion during working jib lubbing of a single jib gantry crane, and the work efficiency and safety of the gantry crane are improved during use.
Description
Technical field
The utility model relates to a kind of shipyard to be installed with single armed frame span winch, is specifically related to a kind of luffing mechanism of single armed frame span winch.Belong to the elevator machinery technical field.
Background technology
The luffing mechanism of span winch adopts the angle of swing jib to change the amplitude of hoisting crane usually.Amplitude changing process is the chief component of span winch working cycle, in order to improve the work efficiency of hoisting crane, adopts the workability luffing more.The working environment of shipyard erecting crane requires it must carry out the workability luffing.Promptly be used for carrying luffing under the situation at band.And the accuracy requirement during owing to the mounting shipping accessory is higher, and is also higher to the luffing precision of hoisting crane.
Before the utility model, conventional shipyard single armed frame portal crane luffing mechanism adopts the soft luffing (see figure 1) of steel rope.It adopts the method for reel Wound steel rope pulling jib end to make the span winch jib accomplish the luffing action.This exists some not enough: the one, and the luffing accuracy of positioning is relatively poor, and steel rope is flexible stroke behind stand under load, and the stroke under different loads is also different; The 2nd, in amplitude changing process safety relatively poor, steel rope constantly receives the fatigue load of "---stretching---bending of bending " in luffing, service life is relatively poor, the monitoring also the difficulty.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned deficiency, and a kind of screw portal crane luffing mechanism is provided, and can when single armed frame span winch workability luffing, providing more, high precision, safer luffing move.
The purpose of the utility model is achieved in that a kind of screw portal crane luffing mechanism; It comprises pedestal, steel bushing, nut, screw rod, dust boot and actuating device, and said dust boot is installed on the afterbody of screw rod, and said nut sleeve places on the screw rod; On nut, be with steel bushing; Outside at said steel bushing also is with connector bushing, and connector bushing links to each other with pedestal, between steel bushing and connector bushing, is connected through bearing; Said actuating device comprises bonded assembly electrical motor, drg, floating axle, coupler, retarder and gear successively, and said gear and nut are meshing with each other.
Compared with prior art, the beneficial effect of the utility model is:
The utility model screw portal crane luffing mechanism, can when single armed frame span winch workability luffing, providing more, high precision, safer luffing move.Improved work efficiency and the safety in use of such span winch.
Description of drawings
Fig. 1 is a screw luffing mechanism front view.
Fig. 2 is the birds-eye view of Fig. 1.
Wherein:
Screw rod 34
Connector bushing 36
Bearing 37
Floating axle 43
Retarder 45
Gear 46.
The specific embodiment
Referring to Fig. 1-Fig. 2, the utility model relates to a kind of screw portal crane luffing mechanism, mainly is made up of pedestal 31, steel bushing 32, nut 33, screw rod 34, dust boot 35 and actuating device; Dust boot 35 is installed on the afterbody of screw rod 34; Said nut 33 is placed on the screw rod 34, on nut 34, is with steel bushing 32, also is with connector bushing 36 in the outside of said steel bushing 32; Connector bushing 36 links to each other with pedestal 31, between steel bushing 32 and connector bushing 36, is connected through bearing 37; Said actuating device comprises bonded assembly electrical motor 41, drg 42, floating axle 43, coupler 44, retarder 45 and gear 46 successively, and said gear 46 is meshing with each other with nut 33.One end of screw rod 34 links to each other with crane arm support; Power is delivered on the nut 33 through floating axle 43, coupler 44, retarder 45, gear 46 by electrical motor 41; By the translation of the rotating drive screw rod 34 of nut 33, finally drive the jib swing and realize the luffing action again.
Claims (1)
1. screw portal crane luffing mechanism; It is characterized in that it comprises pedestal (31), steel bushing (32), nut (33), screw rod (34), dust boot (35) and actuating device; Said dust boot (35) is installed on the afterbody of screw rod (34); Said nut (33) is placed on the screw rod (34), on nut (34), is with steel bushing (32), also is with connector bushing (36) in the outside of said steel bushing (32); Connector bushing (36) links to each other with pedestal (31), between steel bushing (32) and connector bushing (36), is connected through bearing (37); Said actuating device comprises bonded assembly electrical motor (41), drg (42), floating axle (43), coupler (44), retarder (45) and gear (46) successively, and said gear (46) is meshing with each other with nut (33).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120086 CN202542751U (en) | 2012-03-28 | 2012-03-28 | Screw type jib lubbing mechanism for gantry crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220120086 CN202542751U (en) | 2012-03-28 | 2012-03-28 | Screw type jib lubbing mechanism for gantry crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202542751U true CN202542751U (en) | 2012-11-21 |
Family
ID=47163417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220120086 Expired - Fee Related CN202542751U (en) | 2012-03-28 | 2012-03-28 | Screw type jib lubbing mechanism for gantry crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202542751U (en) |
-
2012
- 2012-03-28 CN CN 201220120086 patent/CN202542751U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130328 |