CN202717535U - Insurance device for wire rope outgoing prevention groove of tower crane lifting mechanism - Google Patents
Insurance device for wire rope outgoing prevention groove of tower crane lifting mechanism Download PDFInfo
- Publication number
- CN202717535U CN202717535U CN 201220173422 CN201220173422U CN202717535U CN 202717535 U CN202717535 U CN 202717535U CN 201220173422 CN201220173422 CN 201220173422 CN 201220173422 U CN201220173422 U CN 201220173422U CN 202717535 U CN202717535 U CN 202717535U
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- CN
- China
- Prior art keywords
- tower crane
- steel rope
- segmental arc
- crane lifting
- protection
- 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 an insurance device for a wire rope outgoing prevention groove of a tower crane lifting mechanism, and the insurance device comprises steel plates or channel steel, a trolley pulley which is arranged between the steel plates or the channel steel and a wire rope which is arranged inside the trolley pulley, and the insurance device is characterized in that the outer side of the trolley pulley is provided with a protection arc section, and the protection arc section is fixedly connected with the steel plates or the channel steel through a crossbar. The insurance device has advantages that the structure is simple, the cost is low, easiness in realization can be achieved on the existing tower crane, the slipping problem of the wire rope of the lifting mechanism can be thoroughly solved, the reliability of the crane is greatly improved, and the accidental probability can be reduced.
Description
Technical field
The utility model relates to the realm of building construction, the particularly tower crane lifting mechanism steel rope insurance of preventing groove.
Background technology
High-building construction, tower crane are the cargo carriers of commonly using.But tower crane is in long-term the use, and the steel rope in dolly and the suspension hook skids off from the race of pulley sometimes, causes normally lifting by crane, and affects construction speed.In view of the foregoing, this area demands urgently dolly and suspension hook are carried out structural development.
The utility model content
The utility model purpose is to overcome the problem that prior art exists steel rope easily to skid off, and has proposed the insurance that a kind of tower crane lifting mechanism steel rope prevents groove.
To achieve these goals; the technical solution of the utility model is achieved in that the insurance that tower crane lifting mechanism steel rope prevents groove; comprise: steel plate or channel-section steel, the little pulley sheave between this steel plate or channel-section steel, be positioned at the steel rope of little pulley sheave, it is characterized in that: the arranged outside of described dolly pulley outer rim has protection segmental arc and this protection segmental arc to captive joint with steel plate or channel-section steel by cross bar.
Preferably, described protection segmental arc includes but not limited to be 15 °, 30 °, 45 °, 90 °, 135 °, 180 °, 270 °, 360 ° segmental arc.
Preferably, described protection segmental arc is single segmental arc or is comprised of many segmental arcs.
Preferably, described protection segmental arc and pulley outer rim are gapped.
Preferably, described gap d satisfies 0.01mm≤d≤3cm.
Preferably, the distance of two protections between the segmental arcs is not less than the diameter of steel rope and is not more than 2.4 times of pulley thickness in same little pulley sheave.
Preferably, described distance is 80% of pulley thickness.
Preferably, described protection segmental arc is corresponding to the part of little pulley sheave and steel rope applying.
Preferably, the outside of lifting hook pulley outer rim also is provided with and protects segmental arc and this protection segmental arc to captive joint with the suspension hook plate by cross bar.
Advantage of the present utility model: simple in structure, with low cost, be easy to realize in the repacking of existing tower crane, and thoroughly solved the problem that the steel rope of lifting mechanism easily skids off, greatly improve the reliability of hoisting crane, the probability that the reduction accident occurs.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
Shown in the figure is the insurance that tower crane lifting mechanism steel rope prevents groove; comprise: steel plate 1, the dolly pulley 2 between this steel plate, be positioned at the steel rope 3 of little pulley sheave; it is characterized in that: the arranged outside of described dolly pulley outer rim has protection segmental arc 4 and this protection segmental arc to captive joint with steel plate by cross bar; protection segmental arc and pulley outer rim are gapped; when guaranteeing pulley rolling, can not produce friction with the protection segmental arc always.
Described protection segmental arc is 270 ° segmental arc, and the distance in same little pulley sheave between the two protection segmental arcs is 80% of pulley thickness.
Owing to by increasing the protection segmental arc, be equivalent to increase the height of pulley wall, so when using, greatly reduce the possibility that skids off.
Below only expressed embodiment of the present utility model, it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model patent scope.Should be pointed out that for the person of ordinary skill of the art without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Advantage of the present utility model: simple in structure, with low cost, be easy to realize in the repacking of existing tower crane, and thoroughly solved the problem that the steel rope of lifting mechanism easily skids off, greatly improve the safe reliability of hoisting crane, reduce the probability that safety misadventure occurs.
Claims (9)
1. the tower crane lifting mechanism steel rope insurance of preventing groove; comprise: steel plate or channel-section steel, the little pulley sheave between this steel plate or channel-section steel, be positioned at the steel rope of little pulley sheave, it is characterized in that: the arranged outside of described dolly pulley outer rim has protection segmental arc and this protection segmental arc to captive joint with steel plate or channel-section steel by cross bar.
2. the tower crane lifting according to claim 1 mechanism steel rope insurance of preventing groove, it is characterized in that: described protection segmental arc is included as 15 °, 30 °, 45 °, 90 °, 135 °, 180 °, 270 °, 360 ° segmental arc.
3. the tower crane lifting according to claim 1 mechanism steel rope insurance of preventing groove is characterized in that: described protection segmental arc is single segmental arc or is comprised of many segmental arcs.
4. the tower crane lifting according to claim 1 mechanism steel rope insurance of preventing groove, it is characterized in that: described protection segmental arc and dolly pulley outer rim are gapped.
5. the tower crane lifting according to claim 4 mechanism steel rope insurance of preventing groove, it is characterized in that: described gap d satisfies 0.01mm≤d≤3cm.
6. the tower crane lifting according to claim 1 mechanism steel rope insurance of preventing groove is characterized in that: the distance in same little pulley sheave between the two protection segmental arcs is not less than the diameter of steel rope and is not more than 2.4 times of pulley thickness.
7. the tower crane lifting according to claim 6 mechanism steel rope insurance of preventing groove, it is characterized in that: described distance is 80% of pulley thickness.
8. the tower crane lifting according to claim 1 mechanism steel rope insurance of preventing groove is characterized in that: the part that described protection segmental arc is fitted corresponding to pulley and steel rope.
9. the tower crane lifting according to claim 1 mechanism steel rope insurance of preventing groove, it is characterized in that: the outside of lifting hook pulley outer rim also is provided with the protection segmental arc and this protection segmental arc is captiveed joint with the suspension hook plate by cross bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173422 CN202717535U (en) | 2012-04-23 | 2012-04-23 | Insurance device for wire rope outgoing prevention groove of tower crane lifting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220173422 CN202717535U (en) | 2012-04-23 | 2012-04-23 | Insurance device for wire rope outgoing prevention groove of tower crane lifting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202717535U true CN202717535U (en) | 2013-02-06 |
Family
ID=47619365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220173422 Expired - Fee Related CN202717535U (en) | 2012-04-23 | 2012-04-23 | Insurance device for wire rope outgoing prevention groove of tower crane lifting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202717535U (en) |
-
2012
- 2012-04-23 CN CN 201220173422 patent/CN202717535U/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 | ||
| 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: 20130206 Termination date: 20160423 |