CN102367156A - Dolly overturn preventing safety hook for single-girder portal frame type crane - Google Patents
Dolly overturn preventing safety hook for single-girder portal frame type crane Download PDFInfo
- Publication number
- CN102367156A CN102367156A CN 201110271617 CN201110271617A CN102367156A CN 102367156 A CN102367156 A CN 102367156A CN 201110271617 CN201110271617 CN 201110271617 CN 201110271617 A CN201110271617 A CN 201110271617A CN 102367156 A CN102367156 A CN 102367156A
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- Prior art keywords
- guide wheel
- dolly
- hook
- girder
- safety hook
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- 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.)
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- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
Abstract
The invention discloses a dolly overturn preventing safety hook for a single-girder portal frame type crane, which comprises a hinge seat, a safety hook body, a guide wheel base and a guide wheel, wherein the hinge seat is fixed on a small dolly frame fixed on a falling hook at one side of a girder, the safety hook body is hinged on the hinge seat, two guide wheel shafts separated at intervals are vertically fixed on the middle-lower part of the safety hook body at the same height, and the guide wheel is rotatably sleeved on the lower parts of the guide wheel shafts. Preferably, the guide wheel is rotatably sleeved on the lower parts of the guide wheel shafts through shaft sleeves. Through arranging the safety hook and hooking an upper cover plate of the girder when a dolly is maintained, the dolly overturn preventing safety hook prevents the drolly from overturning during the maintenance, solves the problem of potential safety hazards of the overturning of the dolly of the traditional single-girder portal frame type crane during the maintenance, and has the advantages of simple and reasonable structure, and safety and reliability in working.
Description
Technical field
The present invention relates to single girder raft of pontoons formula hoisting crane, the anti-dolly that particularly is used for the single girder raft of pontoons formula hoisting crane hook with safety tong that topples.
Background technology
There is the potential safety hazard of toppling in the dolly of existing single girder raft of pontoons formula hoisting crane when maintenance, need take measures to guarantee that dolly does not topple when maintenance.
Summary of the invention
The purpose of this invention is to provide a kind of anti-dolly that is used for single girder raft of pontoons formula hoisting crane hook with safety tong that topples, the security hidden trouble so that the dolly that solves existing single girder raft of pontoons formula hoisting crane topples when the maintenance guarantees that dolly does not topple when maintenance.
The objective of the invention is to realize through following technical scheme:
A kind of anti-dolly that is used for single girder raft of pontoons formula hoisting crane hook with safety tong that topples; Comprise free bearing, hook with safety tong body, guide wheel shaft and guide wheel; Said free bearing is fixed on the trolley frame of girder one side off the hook; Said hook with safety tong body is hinged on the said free bearing, vertically is fixed with two guide wheel shafts separated by a distance on the sustained height of said hook with safety tong body middle and lower part, and said guide wheel is set in the bottom of said guide wheel shaft rotationally.
Preferably, said guide wheel is set in the bottom of said guide wheel shaft rotationally through axle sleeve.
Beneficial effect of the present invention is: through hook with safety tong is set, and when inspection trolley, hook the girder upper cover plate, guaranteed that dolly does not topple, and has advantage simple and reasonable for structure, safe and reliable when maintenance.
Description of drawings
According to accompanying drawing and embodiment the present invention is done further explain below.
Fig. 1 is the topple main TV structure scheme drawing of hook with safety tong of the anti-dolly that is used for single girder raft of pontoons formula hoisting crane of the present invention.
Fig. 2 is the topple left TV structure scheme drawing of hook with safety tong of the anti-dolly that is used for single girder raft of pontoons formula hoisting crane shown in Figure 1.
Fig. 3 is the anti-dolly that the is used for single girder raft of pontoons formula hoisting crane shown in Figure 1 sectional structure scheme drawing of hook with safety tong at the A-A place that topple.
Fig. 4 is the anti-dolly that the is used for single girder raft of pontoons formula hoisting crane shown in Figure 1 local enlarged diagram of hook with safety tong at the I place that topple.
Among the figure: 1, free bearing; 2, hook with safety tong body; 3, guide wheel shaft; 4, guide wheel; 5, axle sleeve.
The specific embodiment
Shown in Fig. 1～4; The anti-dolly that the is used for single girder raft of pontoons formula hoisting crane of the present invention hook with safety tong that topples comprises free bearing 1, hook with safety tong body 2, guide wheel shaft 3 and guide wheel 4; Said free bearing 1 is fixed on the trolley frame of girder one side off the hook; Said hook with safety tong body 2 is hinged on the said free bearing 1, vertically is fixed with two guide wheel shafts separated by a distance 3 on the sustained height of said hook with safety tong body 1 middle and lower part, and said guide wheel 4 is set in the bottom of said guide wheel shaft 3 rotationally.
Preferably, said guide wheel 4 is set in the bottom of said guide wheel shaft 3 rotationally through axle sleeve 5.
Principle of work of the present invention is: when the dolly hoisting operation; Rely on guide wheel 4 control hook with safety tong bodies 2 on girder, to slide smoothly, in the dolly upkeep operation, hook the girder upper cover plate through hook with safety tong body 2; Guaranteed that dolly does not topple, and makes whole upkeep operation process safer when maintenance.
The present invention has simple and reasonable for structure, safe and reliable advantage.
Claims (2)
1. an anti-dolly that is used for single girder raft of pontoons formula hoisting crane hook with safety tong that topples; It is characterized in that: comprise free bearing, hook with safety tong body, guide wheel shaft and guide wheel; Said free bearing is fixed on the trolley frame of girder one side off the hook; Said hook with safety tong body is hinged on the said free bearing, vertically is fixed with two guide wheel shafts separated by a distance on the sustained height of said hook with safety tong body middle and lower part, and said guide wheel is set in the bottom of said guide wheel shaft rotationally.
2. the anti-dolly that the is used for single girder raft of pontoons formula hoisting crane according to claim 1 hook with safety tong that topples, it is characterized in that: said guide wheel is set in the bottom of said guide wheel shaft rotationally through axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110271617 CN102367156A (en) | 2011-09-13 | 2011-09-13 | Dolly overturn preventing safety hook for single-girder portal frame type crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110271617 CN102367156A (en) | 2011-09-13 | 2011-09-13 | Dolly overturn preventing safety hook for single-girder portal frame type crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102367156A true CN102367156A (en) | 2012-03-07 |
Family
ID=45759756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110271617 Pending CN102367156A (en) | 2011-09-13 | 2011-09-13 | Dolly overturn preventing safety hook for single-girder portal frame type crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102367156A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342291A (en) * | 2013-07-05 | 2013-10-09 | 无锡港盛港口机械有限公司 | Crane safety device |
-
2011
- 2011-09-13 CN CN 201110271617 patent/CN102367156A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103342291A (en) * | 2013-07-05 | 2013-10-09 | 无锡港盛港口机械有限公司 | Crane safety device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120307 |