CN201105959Y - Tower crane amplitude automatic rope tightener - Google Patents
Tower crane amplitude automatic rope tightener Download PDFInfo
- Publication number
- CN201105959Y CN201105959Y CNU2007201841160U CN200720184116U CN201105959Y CN 201105959 Y CN201105959 Y CN 201105959Y CN U2007201841160 U CNU2007201841160 U CN U2007201841160U CN 200720184116 U CN200720184116 U CN 200720184116U CN 201105959 Y CN201105959 Y CN 201105959Y
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- ratchet
- pulley
- rope
- auxiliary
- frame
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Abstract
The utility model relates to a variable amplitude automatic rope tightening device for a tower style crane, which comprises a base frame, a bracket and a support frame fixed on the base frame, a pulley combination frame penetrated and winded by a hoist rope. The upper part of the support frame is provided with supporting pulleys with a supporting variable amplitude steel wire rope. The pulley combination frame comprises a pulley frame and pulleys installed on the frame. The rope tightening device further comprises a ratchet disk assembly and a suspension auxiliary pulley group. The ratchet disk assembly comprises a winding drum, a ratchet coaxially installed with the drum, a pallet and a rope tightening spanner that are installed on the base frame to be match with the ratchet. The pallet can be rotatablely installed on the bracket. The rope tightening spanner comprises a rope tightening board and a pull pin and is sheathed on a ratchet shaft. The pull pin is plugged on the rope tightening board. The pull pin is matched with gear grooves arranged on the ratchet. The auxiliary pulley group comprises two pulleys, the central axes of which are fixedly connected. The variable amplitude steel wire rope winding from the supporting pulleys penetrates and winds round into one of the pulleys and is led out. The auxiliary steel wire rope penetrates and winds round into the other pulley, an end of the auxiliary steel wire rope is fixed by a twine retainer and the other end is winded on the winding drum.
Description
(1) technical field
The utility model relates to the automatic tight rope device of a kind of tower crane amplitude variation.
(2) background technology
The effect of luffing steel rope is with the luffing motion back and forth of luffing jib dolly, with reference to Fig. 4, the luffing steel rope is worn around scheme drawing, because work one end is after the time, steel rope can fluff through tension, can the luffing steel rope be tightened up by the rope pulley device on the amplitude variation trolley, its original design is made up of rope pulley device and tight rope assembly, spacer, bearing pin etc., with reference to Fig. 1, Fig. 2, Fig. 3, wherein rope pulley device is welded by web, round steel, screw, reel, is used to regulate the degree of tightness of luffing steel rope.After the luffing steel rope comes loose, block rope pulley device with long pipe or round steel, prevent to rotate after its latch from extracting, latch is extracted in the back, could adjust the degree of tightness of luffing steel rope, and the shortcoming of existence is: use is inconvenient, not quick, has potential safety hazard.
(3) summary of the invention
For the use inconvenience that overcomes existing tight rope device, quick, the deficiency that has potential safety hazard, the utility model provides a kind of convenient to use and automatic tight rope, avoids the automatic tight rope device of tower crane amplitude variation of potential safety hazard.
The technical scheme that its technical matters that solves the utility model adopts is:
The automatic tight rope device of tower crane amplitude variation, comprise underframe, be fixed on support, bracing frame on the underframe, wear pulley combination frame around hoist rope, the supporting pulley of a supporting luffing steel rope is installed in the top of support frame as described above, described pulley combination frame comprises pulley yoke, is installed in the pulley on the pulley yoke, described pulley yoke one end is installed on the underframe, and the other end is installed on the described support; Described tight rope device also comprises ratchet cover plate assembly, unsettled auxiliary pulley group, described ratchet cover plate assembly comprise reel, with the coaxial mounted ratchet of reel, the ratchet that cooperates with ratchet, tight rope spanner, described ratchet is installed on the underframe by otic placode, described ratchet is rotating to be installed on the described support, described tight rope spanner comprises the tight rope plate, pulls pin, described tight rope sleeve-board is contained on the ratchet shaft, the described pin of pulling is plugged on the tight rope plate, and the described pin of pulling cooperates with teeth groove on the ratchet; Described auxiliary pulley group is two pulleys that center shaft is connected, wear around going into one of them pulley and drawing from the luffing steel rope that supporting pulley lays out, wear on another pulley around auxiliary steel rope, an end and the rope clamp of auxiliary steel rope are fixed, and the other end is on described reel.
Further, described ratchet cover plate assembly also comprises the ratchet wheel frame that is installed in the ratchet outside, and auxiliary ratchet is installed on the described ratchet wheel frame, and described auxiliary ratchet cooperates with described ratchet.
Further, the upper end of described support is connected with the load lifting limiter device, and first spring assembly is fixed on described support and the described ratchet wheel frame, and second spring assembly is fixed on the described support.
Further, described ratchet has two, and described two ratchets are installed in the both sides of reel.
Described bracing frame comprises bottom cross beam, trombone slide, and the upper end of bottom cross beam and trombone slide is individually fixed in the both sides of supporting pulley.
Described bottom cross beam, trombone slide are fixed by otic placode and underframe respectively.
Technical conceive of the present utility model is: twine by assisting the reel on the steel rope and the ratchet cover plate, the pulley on the auxiliary pulley group, the design spanner drives ratchet and rotates, and tightens up auxiliary steel rope, and the motion of pulling auxiliary pulley group, thereby tensioning luffing steel rope is effectively located by ratchet.And can be by the weight of hanging oneself at the suspension hook of hoist rope, stressed on the hoist rope passed on the luffing steel rope by auxiliary steel rope, regulate the tension force of luffing steel rope.
The beneficial effects of the utility model mainly show: convenient to use and automatic tight rope, avoid potential safety hazard.
(4) description of drawings
Fig. 1 is the constructional drawing of existing tight rope device.
Fig. 2 is the constructional drawing of existing rope sheave assembly.
Fig. 3 is that the A of Fig. 2 is to scheme drawing.
Fig. 4 is wearing around scheme drawing of existing luffing steel rope.
Fig. 5 is an automatic tight rope device of the present utility model at the spanner scheme drawing under the running condition not.
Fig. 6 is the constructional drawing of the ratchet cover plate.
Fig. 7 is that the B of Fig. 6 is to scheme drawing.
Fig. 8 is the structural representation of auxiliary pulley group.
Fig. 9 is the left view of Fig. 8.
Figure 10 is that luffing steel rope of the present utility model twines scheme drawing.
(5) specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
With reference to Fig. 5-Figure 10, the automatic tight rope device of tower crane amplitude variation, comprise underframe 1, be fixed on support 5, bracing frame on the underframe 1, wear pulley combination frame 6 around hoist rope 7, the supporting pulley 4 of a supporting luffing steel rope 8 is installed in the top of support frame as described above, described pulley combination frame comprises pulley yoke 18, is installed in the pulley on the pulley yoke, described pulley yoke 18 1 ends are installed on the underframe 1, and the other end is installed on the described support 5; Described tight rope device also comprises ratchet cover plate assembly, unsettled auxiliary pulley group 9, described ratchet cover plate assembly comprise reel 10, with reel 10 coaxial mounted ratchets 11, the ratchet 12 that cooperates with ratchet 11, tight rope spanner 13, described ratchet 11 is installed on the underframe 1 by otic placode, described ratchet 12 rotating being installed on the described support 5, described tight rope spanner comprises the tight rope plate, pulls pin, described tight rope sleeve-board is contained on the ratchet shaft, the described pin of pulling is plugged on the tight rope plate, and the described pin of pulling cooperates with teeth groove on the ratchet; Described auxiliary pulley group is two pulleys that center shaft is connected, wear around going into one of them pulley and drawing from the luffing steel rope 8 that supporting pulley 4 lays out, wear on another pulley around auxiliary steel rope 13, an end of auxiliary steel rope 13 and rope clamp 20 are fixing, and the other end is on described reel.
Described ratchet cover plate assembly also comprises the ratchet wheel frame 19 that is installed in ratchet 11 outsides, and auxiliary ratchet 17 is installed on the described ratchet wheel frame 19, and described auxiliary ratchet 17 cooperates with described ratchet 11.One end of described auxiliary ratchet 17 is rotating to be installed on the ratchet wheel frame 19, and the other end is not fixed on bearing pin on the ratchet wheel frame 16 when the tight rope mode of operation, this bearing pin can be extracted during the tight rope mode of operation, this auxiliary ratchet 17 is removed put on the ratchet slot.
The upper end of described support 5 is connected with load lifting limiter device 14, the first spring assemblies 15 and is fixed on described support 5 and the described ratchet wheel frame, and second spring assembly 16 is fixed on the described support.First spring assembly, 15 1 ends are fixed on the described ratchet wheel frame, and its middle part is fixed on the described pulley yoke 18, and second spring assembly, 16 1 ends are fixed on the underframe 1, and its middle part is fixed on the described pulley yoke 18.
Described ratchet 11 has two, and described two ratchets 11 are installed in the both sides of reel.
Described bracing frame comprises bottom cross beam 2, trombone slide 3, and the upper end of bottom cross beam 2 and trombone slide 3 is individually fixed in the both sides of supporting pulley 4.
Described bottom cross beam 3, trombone slide 4 are fixing by otic placode and underframe 1 respectively.
Principle of work of the present utility model is: twine by assisting the reel on the steel rope 13 and the ratchet cover plate, the pulley on the auxiliary pulley group 9, the design spanner drives ratchet 11 and rotates, tighten up auxiliary steel rope 13, and pulling auxiliary pulley group 9 motions, thereby tensioning luffing steel rope 8 is effectively located by ratchet.And can be by the weight of hanging oneself at the suspension hook of hoist rope 7, stressed on the hoist rope 7 passed on the luffing steel rope 8 by auxiliary steel rope 13, regulate the tension force of luffing steel rope 8.
Particularly, auxiliary pulley group 9 is connected on the otic placode on the bottom cross beam 2 earlier, will assists ratchet 17 to remove to control position and block ratchet 11 with bearing pin, twine auxiliary steel rope 13, again with the tight rope plate by pulling the pin rotating ratchet, repeat above the operation, tighten up to auxiliary steel rope 13, but too not tight.Wear again around luffing steel rope 8, see that figure 13 luffing steel ropes twine scheme drawing, when luffing steel rope 8 wear wind after, bearing pin between bottom cross beam 3 and the auxiliary pulley group 9 is removed, this moment, relaxation can appear in luffing steel rope 8 rear portions, still tighten up luffing steel rope 8 with the tight rope spanner, unsettled up to described auxiliary pulley group 9.
At this moment can regulate luffing steel rope 8 (prerequisite be hoist rope twined finish) by the lift heavy thing, its principle of work is: will assist the bearing pin of ratchet 17 to extract, to assist ratchet 17 dops to be stuck on the ratchet teeth groove, this moment is at the suspension hook that the hoists weight of hanging oneself, hoist rope 7 is passed to power on the support 5 by pulley combination frame 6, length of spring compressed on the weight limits apparatus 14, driven support 5, at this moment the ratchet 12 of support 5 turns over corresponding several tooth, spring length on first spring assembly 15 and second spring assembly 16 also reduces (when dispatching from the factory simultaneously, the power of spring is adjusted good), the power of lift heavy deposits yields makes the amount of spring compression of above-mentioned two spring assemblies inequality, ratchet 12 blocks ratchet 11 teeth groove and will drive ratchet 11 to moving clockwise after removing weight, and luffing steel rope 8 will become tight like this.After adjustment finishes, should be fixed on the ratchet wheel frame 19 with bearing pin assisting ratchet 17 to return to rest position.
After the luffing steel rope has been used a period of time, the luffing steel rope is fluffed, use the same method and hang a weight luffing steel rope is tightened up.
Claims (6)
1, the automatic tight rope device of tower crane amplitude variation, comprise underframe, be fixed on the support on the underframe, bracing frame, wear pulley combination frame around hoist rope, the supporting pulley of a supporting luffing steel rope is installed in the top of support frame as described above, described pulley combination frame comprises pulley yoke, be installed in the pulley on the pulley yoke, described pulley yoke one end is installed on the underframe, the other end is installed on the described support, it is characterized in that: described tight rope device also comprises ratchet cover plate assembly, unsettled auxiliary pulley group, described ratchet cover plate assembly comprises reel, with the coaxial mounted ratchet of reel, the ratchet that cooperates with ratchet, the tight rope spanner, described ratchet is installed on the underframe by otic placode, described ratchet is rotating to be installed on the described support, described tight rope spanner comprises the tight rope plate, pull pin, described tight rope sleeve-board is contained on the ratchet shaft, the described pin of pulling is plugged on the tight rope plate, and the described pin of pulling cooperates with teeth groove on the ratchet; Described auxiliary pulley group is two pulleys that center shaft is connected, wear around going into one of them pulley and drawing from the luffing steel rope that supporting pulley lays out, wear on another pulley around auxiliary steel rope, an end and the rope clamp of auxiliary steel rope are fixed, and the other end is on described reel.
2, the automatic tight rope device of tower crane amplitude variation as claimed in claim 1, it is characterized in that: the upper end of described support is connected with the load lifting limiter device, first spring assembly is fixed on described support and the described ratchet wheel frame, and second spring assembly is fixed on the described support.
3, the automatic tight rope device of tower crane amplitude variation as claimed in claim 1 or 2, it is characterized in that: described ratchet cover plate assembly also comprises the ratchet wheel frame that is installed in the ratchet outside, auxiliary ratchet is installed on the described ratchet wheel frame, and described auxiliary ratchet cooperates with described ratchet.
4, the automatic tight rope device of tower crane amplitude variation as claimed in claim 3, it is characterized in that: described ratchet has two, and described two ratchets are installed in the both sides of reel.
5, the automatic tight rope device of tower crane amplitude variation as claimed in claim 4, it is characterized in that: described bracing frame comprises bottom cross beam, trombone slide, the upper end of bottom cross beam and trombone slide is individually fixed in the both sides of supporting pulley.
6, the automatic tight rope device of tower crane amplitude variation as claimed in claim 5, it is characterized in that: described bottom cross beam, trombone slide are fixed by otic placode and underframe respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201841160U CN201105959Y (en) | 2007-10-12 | 2007-10-12 | Tower crane amplitude automatic rope tightener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201841160U CN201105959Y (en) | 2007-10-12 | 2007-10-12 | Tower crane amplitude automatic rope tightener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201105959Y true CN201105959Y (en) | 2008-08-27 |
Family
ID=39957756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201841160U Expired - Lifetime CN201105959Y (en) | 2007-10-12 | 2007-10-12 | Tower crane amplitude automatic rope tightener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201105959Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803432A (en) * | 2014-02-13 | 2014-05-21 | 山东大汉建设机械有限公司 | Twofold luffing device for trolley luffing tower crane |
| CN108946524A (en) * | 2018-09-08 | 2018-12-07 | 江麓机电集团有限公司 | A kind of load-bearing trolley of tower crane traction rope locking device |
| CN109809310A (en) * | 2018-12-24 | 2019-05-28 | 科曼萨建设机械（杭州）有限公司 | A kind of movable arm tower crane pull rod and its installation method |
| CN110510532A (en) * | 2019-09-04 | 2019-11-29 | 中建海峡建设发展有限公司 | A kind of tower crane lifting wirerope anti-rotation lock and application method |
-
2007
- 2007-10-12 CN CNU2007201841160U patent/CN201105959Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103803432A (en) * | 2014-02-13 | 2014-05-21 | 山东大汉建设机械有限公司 | Twofold luffing device for trolley luffing tower crane |
| CN108946524A (en) * | 2018-09-08 | 2018-12-07 | 江麓机电集团有限公司 | A kind of load-bearing trolley of tower crane traction rope locking device |
| CN109809310A (en) * | 2018-12-24 | 2019-05-28 | 科曼萨建设机械（杭州）有限公司 | A kind of movable arm tower crane pull rod and its installation method |
| CN109809310B (en) * | 2018-12-24 | 2024-06-11 | 科曼萨建设机械（杭州）有限公司 | Swing arm tower crane pull rod and installation method thereof |
| CN110510532A (en) * | 2019-09-04 | 2019-11-29 | 中建海峡建设发展有限公司 | A kind of tower crane lifting wirerope anti-rotation lock and application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jie Industrial Park of Xiaoshan District of Hangzhou City, Zhejiang province 311223 Patentee after: Construction machinery (Hangzhou) Co., Ltd. Address before: Jie Industrial Park of Xiaoshan District of Hangzhou City, Zhejiang province 311223 Patentee before: Hangzhou Comansa Jie Construction Machinery Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20080827 |
|
| CX01 | Expiry of patent term |