CN207827711U - Tower crane broken rope protector - Google Patents
Tower crane broken rope protector Download PDFInfo
- Publication number
- CN207827711U CN207827711U CN201820154056.6U CN201820154056U CN207827711U CN 207827711 U CN207827711 U CN 207827711U CN 201820154056 U CN201820154056 U CN 201820154056U CN 207827711 U CN207827711 U CN 207827711U
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- pulley
- special
- tower crane
- pawl
- axis
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Abstract
The utility model discloses a kind of tower crane broken rope protectors; two pulley blocks equipped with opposed; each pulley blocks include special pulley A, common pulley B and bolt; pawl is installed on special pulley A; and special pulley A is used with axis and is threadedly coupled; common pulley B is key connection with axis; bolt is arranged opens the place that could be contacted when stretching in pawl; ringshaped magnet makes special pulley A be kept fixed in normal work with axis using interference fit, and steel wire rope is put in groove and is reduced and the contact of special pulley A.When any wire rope breaking in tower crane hook both sides, special pulley A high speed rotations, so that pawl is opened to generate larger centrifugal force and be stuck at preset bolt, make special pulley A remains stationaries, common pulley B is rotated further and drives shaft rotation dynamic, it is safe to use to make two pulleys reduce personal damage and property loss caused by tower crane hook is fallen apart from close and finally block steel wire rope.
Description
Technical field
The utility model is related to a kind of tower crane boom hoistings for building, i.e. tower crane broken rope protector.
Background technology
In existing technology, construction machinery equipment tower crane is made of tower body, left-right balance arm and lifting hook.Tower crane rises
When hanging, guiding role is carried out by pulley, because fallen article is heavy, steel wire rope aging or brake block excessive wear, sometimes, meeting
The fracture of steel wire rope occurs, lifting hook can be detached from rapidly with steel wire rope, threaten to the person and property safety in building site, tower
Hanging can also damage after hook is fallen, and influence to use.
Utility model content
The purpose of this utility model is against the above deficiency and provides a kind of tower crane broken rope protector, reduces because of tower crane hook
Casualties caused by falling and property loss, it is safe to use.
The technical solution of the utility model is：A kind of tower crane broken rope protector, it is characterized in that two equipped with opposed
Pulley blocks, each pulley blocks include special pulley A, common pulley B and bolt, pawl are equipped on special pulley A, and special
Pulley A processed is with axis using being threadedly coupled, and common pulley B and axis are key connection, and bolt setting can just connect when pawl opens stretching
Tactile place is equipped with ringshaped magnet in the shaft part position on the outside of special pulley A, and ringshaped magnet is matched with axis using interference
It closes, so that special pulley A is kept fixed in normal work, the shaft part position between special pulley A and common pulley B is provided with recessed
Slot, steel wire rope are put in groove and reduce and the contact of special pulley A.
The advantages of the utility model：When disconnected rope, steel wire rope drives special pulley quick rotation, and pawl is made to open and be stuck in
At preset bolt, make special pulley A remains stationaries, common pulley B is rotated further and drives shaft rotation dynamic, to make two
Pulley is blocked when tower crane being made to be hooked in wire cable rupture greatly and does not fall or slowly fall apart from close and finally block steel wire rope,
Casualties and property loss caused by tower crane hook is fallen are reduced, it is safe to use.
Description of the drawings
Fig. 1 is the utility model structure diagram.
Fig. 2 is special pulley structure schematic diagram.
Fig. 3 is structure diagram of the pawl not under open configuration.
Fig. 4 is the structure diagram under pawl open configuration.
Specific implementation mode
The embodiment of the utility model is described in further detail below in conjunction with attached drawing.
As shown in Figure 1 and Figure 2, the utility model tower crane broken rope protector is provided with two pulley blocks of opposed, ensures
When steel wire rope is broken in an arbitrary point, tower crane hook is operable.Each pulley blocks include special pulley 2A and common pulley
2B and bolt 5, places different from common pulley 2B special pulley 2A is to be equipped with pawl 8, and connect use with axis 3
Screw thread 4 connects, and common pulley 2B is key connection.
Under normal circumstances when operation, since tower crane belongs to low speed operation, when any wire rope breaking in tower crane hook both sides
When, ringshaped magnet 6 and axis 3 make special pulley 2A be kept fixed in normal work and by steel wire rope using interference fit in Fig. 2
It is put at groove 7 and reduces and the contact of special pulley 2A.
When normal work, special pulley 2A and common pulley 2B is to slowly run, and pawl 8 does not open in Fig. 3 states, works as tower
When hanging any wire rope breaking in hook both sides, special pulley 2A and common pulley 2B high speed rotations, at this point, being mounted on special pulley
Pawl 8 at 2A contact that (bolt installation position is pawl can just connect when opening stretching due to the excessive opening of centrifugal force and with bolt 5
Tactile position), such as Fig. 4, since bolt 5 is stationary state, the pawl 8 for opening stretching forces special pulley 2A to be contacted with bolt 5
And it is static, and axis 3 is rotated since the frictional force between steel wire rope continues holding, since special pulley 2A and axis 3 are that screw thread 4 connects
It connects, to make ringshaped magnet 6 be detached with special pulley 2A and keep special pulley 2A and common pulley 2B close and clamping steel wire rope,
So that tower crane hook is no longer fallen or slow down tower crane hook and fall speed, realizes purpose safe to use.
The above is only the preferred embodiment of the utility model, not imposed any restrictions to the utility model, every
According to the utility model technical spirit to any simple modification, change and equivalent structure transformation made by above example, still
Belong in the protection domain of technical solutions of the utility model.
Claims (1)
1. a kind of tower crane broken rope protector, it is characterized in that two pulley blocks equipped with opposed, each pulley blocks include special
Pulley (2 A), common pulley (2B) and bolt (5) are equipped with pawl (8), and special pulley (2 on special pulley (2 A)
A it) is connect using screw thread (4) with axis (3), common pulley (2B) is key connection with axis (3), and bolt (5) setting is opened in pawl (8)
The place that could be contacted when stretching is equipped with ringshaped magnet (6) in the shaft part position on the outside of special pulley (2 A), and cyclic annular
Magnet (6) using being interference fitted, makes special pulley (2 A) be kept fixed in normal work, in special pulley (2 with axis (3)
A) the shaft part position between common pulley (2B) is provided with groove (7), and steel wire rope is put at groove (7) and reduces and special pulley (2
A contact).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820154056.6U CN207827711U (en) | 2018-01-30 | 2018-01-30 | Tower crane broken rope protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820154056.6U CN207827711U (en) | 2018-01-30 | 2018-01-30 | Tower crane broken rope protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207827711U true CN207827711U (en) | 2018-09-07 |
Family
ID=63395506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820154056.6U Active CN207827711U (en) | 2018-01-30 | 2018-01-30 | Tower crane broken rope protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207827711U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003413A (en) * | 2021-02-23 | 2021-06-22 | 机械工业第九设计研究院有限公司 | Shear type guide stabilizing mechanism matched with electric hoist system |
| CN113562596A (en) * | 2021-07-22 | 2021-10-29 | 江苏亚力吊装设备有限公司 | Rotary lifting appliance for crane |
-
2018
- 2018-01-30 CN CN201820154056.6U patent/CN207827711U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003413A (en) * | 2021-02-23 | 2021-06-22 | 机械工业第九设计研究院有限公司 | Shear type guide stabilizing mechanism matched with electric hoist system |
| CN113562596A (en) * | 2021-07-22 | 2021-10-29 | 江苏亚力吊装设备有限公司 | Rotary lifting appliance for crane |
| CN113562596B (en) * | 2021-07-22 | 2022-03-29 | 江苏亚力吊装设备有限公司 | Rotary lifting appliance for crane |
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |