CN108002265B - Travel limiting device of hoisting mechanism - Google Patents
Travel limiting device of hoisting mechanism Download PDFInfo
- Publication number
- CN108002265B CN108002265B CN201710982981.8A CN201710982981A CN108002265B CN 108002265 B CN108002265 B CN 108002265B CN 201710982981 A CN201710982981 A CN 201710982981A CN 108002265 B CN108002265 B CN 108002265B
- Authority
- CN
- China
- Prior art keywords
- limiting
- steel wire
- roller
- wire rope
- sliding
- 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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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/54—Safety gear
- B66D1/56—Adaptations of limit switches
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention relates to a stroke limiting device of a hoisting mechanism, which comprises two hinged supports, wherein a main shaft is arranged between the two hinged supports, a roller is arranged on the main shaft, a steel wire rope is wound on the roller, a limiting rod parallel to the direction of the main shaft is arranged above the steel wire rope on the roller, a limiting groove is arranged at one end, close to the fixed end of the steel wire rope, of the lower surface of the limiting rod, a limiting boss strip is arranged on the lower surface of the limiting rod, two ends of the limiting rod are respectively connected with a sliding block, the sliding block is arranged in a sliding groove on a supporting frame in a sliding manner, a compression spring is arranged around the guiding rod between the sliding block and the top end surface of the sliding groove, a supporting table is arranged around the guiding rod on the top end surface of the sliding groove, a proximity switch A is fixed on the lower surface of the supporting table, a trigger A is arranged below the proximity switch A on the guiding rod; the invention can effectively prevent the over-laying of the steel wire rope on the roller and the top punching of the lifting hook.
Description
Technical Field
The invention belongs to the technical field of hoisting, and particularly relates to a stroke limiting device of a hoisting mechanism.
Background
In the process of hoisting a heavy object by a crane, the situation that the hoisting height of a hoisting part is higher than that of a hoisting mechanism sometimes occurs, at the moment, if the hoisting heavy object possibly collides with the hoisting mechanism due to carelessness of workers, when a steel wire rope on a winding drum is used up, damage can be caused to a hoisting motor if the steel wire rope is not timely controlled, and if the fastening force at the top end of the steel wire rope is not large enough, the heavy object can directly fall, potential safety hazards exist, and even safety accidents can occur, so that an upper stroke limiting device and a lower stroke limiting device of the steel wire rope need to be arranged on the winding drum of the crane, the existing upper stroke and lower stroke limiting of the steel wire rope on the winding drum are respectively realized by different devices, the structure is complex, and the use is; therefore, it is very necessary to provide a hoisting mechanism stroke limiting device which has simple and reasonable structure, can effectively prevent the over-placing of the steel wire rope on the roller and the top punching of the lifting hook and is convenient to use.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the lifting mechanism stroke limiting device which is simple and reasonable in structure, can effectively prevent the over-release of a steel wire rope on a roller and the ejection of a lifting hook and is convenient to use.
The purpose of the invention is realized as follows: a stroke limiting device of a hoisting mechanism comprises two hinged supports, a main shaft is arranged between the two hinged supports, a roller is arranged on the main shaft, a steel wire rope is wound on the roller, a limiting rod parallel to the direction of the main shaft is arranged above the steel wire rope on the roller, a limiting groove is arranged at one end, close to the fixed end of the steel wire rope, of the lower surface of the limiting rod, a limiting boss strip is arranged on the lower surface of the limiting rod, sliding blocks are respectively connected with the two ends of the limiting rod, the sliding blocks are arranged in sliding grooves in a supporting frame in a sliding mode, the supporting frame is fixed on the hinged supports, guide rods are arranged on the upper surfaces of the sliding blocks, compression springs are arranged around the guide rods between the sliding blocks and the top end surfaces of the sliding grooves in guide holes in the top end surfaces of the supporting frame in the sliding mode, the top end face of the sliding groove is provided with a supporting table around the guide rod, the lower surface of the supporting table is fixed with a proximity switch A, a trigger A is arranged below the proximity switch A on the guide rod, a trigger B is arranged on the lower surface of the sliding block, and a proximity switch B is arranged below the trigger B on the lower surface of the sliding groove.
The length of the limiting groove is not less than the sum of the diameters of the three steel wire ropes arranged side by side.
The length of the limiting boss strip is the sum of the diameters of the two steel wire ropes arranged side by side.
The sum of the heights of the limiting groove and the limiting lug boss strip is not more than the diameter of the steel wire.
The support frame is detachably connected with the hinge base.
And a buffer device is arranged between the proximity switch B and the sliding chute.
The position of the limiting lug boss strip on the limiting rod is adjustable.
The invention has the beneficial effects that: according to the invention, the limiting rod tightly pressed on the steel wire rope through the compression spring is arranged above the roller, the lower surface of the limiting rod is respectively provided with the limiting groove and the limiting boss strip, when only one layer of the steel wire rope on the roller is left and the rest steel wire rope is just clamped in the limiting groove, the trigger B on the lower surface of the sliding block in the sliding chute triggers the proximity switch B, and at the moment, the controller can start the braking device connected on the roller, so that the downward placement of the steel wire rope is stopped, and the over-placement of the steel wire rope on the roller is prevented; in the process of winding the steel wire ropes on the roller layer by layer, the limiting rod above the roller and the sliding blocks at two ends of the limiting rod gradually move upwards along the sliding groove on the supporting frame until the steel wire rope at the position close to the tail end on the roller is contacted with the limiting boss strip on the lower surface of the limiting rod, at the moment, the trigger A fixed on the guide rod in the sliding groove triggers the proximity switch A arranged on the top end surface of the sliding groove, and then the controller starts the braking device connected on the roller to prevent the lifting hook from rushing to the top; in summary, the invention has the advantages of simple and reasonable structure, capability of effectively preventing the over-laying of the steel wire rope on the roller and the top punching of the lifting hook, and convenient use.
Drawings
Fig. 1 is a schematic structural diagram of a hoisting mechanism stroke limiting device.
Fig. 2 is a partial structural schematic diagram of a hoisting mechanism stroke limiting device.
In the figure: 1. the device comprises a hinged support 2, a main shaft 3, a roller 4, a steel wire rope 5, a support frame 6, a sliding chute 7, a sliding block 8, a guide rod 9, a trigger B10, a limiting groove 11, a limiting rod 12, a limiting boss strip 13, a compression spring 14, a proximity switch B15, a buffer device 16, a trigger A17, a proximity switch A18, a support platform 19 and a guide hole.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Example 1
As shown in fig. 1 and 2, a stroke limiting device of a hoisting mechanism comprises two hinged supports 1, a main shaft 2 is arranged between the two hinged supports 1, a roller 3 is arranged on the main shaft 2, a steel wire rope 4 is wound on the roller 3, a limiting rod 11 parallel to the direction of the main shaft 2 is arranged above the steel wire rope 4 on the roller 3, a limiting groove 10 is arranged at one end of the lower surface of the limiting rod 11 close to the fixed end of the steel wire rope 4, a limiting lug boss 12 is arranged on the lower surface of the limiting rod 11, two ends of the limiting rod 11 are respectively connected with a sliding block 7, the sliding block 7 is arranged in a sliding groove 6 on a supporting frame 5 in a sliding manner, the supporting frame 5 is fixed on the hinged supports 1, a guide rod 8 is arranged on the upper surface of the sliding block 7, the guide rod 8 is arranged in a guide hole 19 on the top end surface of the supporting frame 5 in a sliding manner, the utility model discloses a slide block 7, including slider 6, guide bar 8, supporting bench 18, proximity switch A17, guide bar 8, slider 7, the top end face of spout 6 between be provided with compression spring 13 around the guide bar 8, the top end face of spout 6 on be provided with supporting bench 18 around the guide bar 8, the lower surface of supporting bench 18 fixed with proximity switch A17, guide bar 8 on the below of proximity switch A17 be provided with trigger A16, the lower surface of slider 7 be provided with trigger B9, the lower surface of spout 6 on the below of trigger B9 be provided with proximity switch B14.
According to the invention, the limiting rod 11 tightly pressed on the steel wire rope 4 through the compression spring 13 is arranged above the roller 3, the lower surface of the limiting rod 11 is respectively provided with the limiting groove 10 and the limiting boss strip 12, when only one layer of the steel wire rope 4 on the roller 3 is left and the rest steel wire rope is just clamped in the limiting groove 10, the trigger B9 on the lower surface of the sliding block 7 in the sliding groove 6 triggers the proximity switch B14, at the moment, the controller can start the braking device connected on the roller 3, so that the downward release of the steel wire rope is stopped, and the over release of the steel wire rope 4 on the roller 3 is prevented; in the process of winding the steel wire rope 4 on the roller 3 layer by layer, the limiting rod 11 above the roller 3 and the sliding blocks 7 at two ends of the limiting rod 11 gradually move upwards along the sliding groove 6 on the supporting frame 5 until the steel wire rope 4 at the tail end of the roller 3 is contacted with the limiting boss strip 12 on the lower surface of the limiting rod 11, at the moment, a trigger A16 fixed on a guide rod 8 in the sliding groove 6 triggers a proximity switch A17 arranged on the top end face of the sliding groove 6, and then a controller starts a braking device connected on the roller 3 to prevent a lifting hook from impacting; in summary, the invention has the advantages of simple and reasonable structure, capability of effectively preventing the over-laying of the steel wire rope on the roller and the top punching of the lifting hook, and convenient use.
Example 2
As shown in fig. 1 and 2, a stroke limiting device of a hoisting mechanism comprises two hinged supports 1, a main shaft 2 is arranged between the two hinged supports 1, a roller 3 is arranged on the main shaft 2, a steel wire rope 4 is wound on the roller 3, a limiting rod 11 parallel to the direction of the main shaft 2 is arranged above the steel wire rope 4 on the roller 3, a limiting groove 10 is arranged at one end of the lower surface of the limiting rod 11 close to the fixed end of the steel wire rope 4, a limiting lug boss 12 is arranged on the lower surface of the limiting rod 11, two ends of the limiting rod 11 are respectively connected with a sliding block 7, the sliding block 7 is arranged in a sliding groove 6 on a supporting frame 5 in a sliding manner, the supporting frame 5 is fixed on the hinged supports 1, a guide rod 8 is arranged on the upper surface of the sliding block 7, the guide rod 8 is arranged in a guide hole 19 on the top end surface of the supporting frame 5 in a sliding manner, a compression spring 13 is arranged around the guide rod 8 between the top end surfaces of the sliding block 7 and the sliding groove 6, a support table 18 is arranged around the guide rod 8 on the top end surface of the sliding groove 6, a proximity switch A17 is fixed on the lower surface of the support table 18, a trigger A16 is arranged below a proximity switch A17 on the guide rod 8, a trigger B9 is arranged on the lower surface of the sliding block 7, a proximity switch B14 is arranged below the trigger B9 on the lower surface of the sliding groove 6, the length of the limiting groove 10 is not less than the sum of the diameters of three steel wire ropes arranged side by side, the length of the limiting boss strip 12 is the sum of the diameters of the two steel wire ropes arranged side by side, the sum of the heights of the limiting groove 10 and the limiting boss strip 12 is not more than the diameters of the steel wires, the support frame 5 is detachably connected with the hinge base 1, a buffer device 15 is arranged between the proximity switch B14 and the sliding groove 6, the position of the limiting lug boss strip 12 on the limiting rod 11 is adjustable.
According to the invention, the limiting rod 11 tightly pressed on the steel wire rope 4 through the compression spring 13 is arranged above the roller 3, the lower surface of the limiting rod 11 is respectively provided with the limiting groove 10 and the limiting boss strip 12, when only one layer of the steel wire rope 4 on the roller 3 is left and the rest steel wire rope is just clamped in the limiting groove 10, the trigger B9 on the lower surface of the sliding block 7 in the sliding groove 6 triggers the proximity switch B14, at the moment, the controller can start the braking device connected on the roller 3, so that the downward release of the steel wire rope is stopped, and the over release of the steel wire rope 4 on the roller 3 is prevented; in the process of winding the steel wire rope 4 on the roller 3 layer by layer, the limiting rod 11 above the roller 3 and the sliding blocks 7 at two ends of the limiting rod 11 gradually move upwards along the sliding groove 6 on the supporting frame 5 until the steel wire rope 4 at the tail end of the roller 3 is contacted with the limiting boss strip 12 on the lower surface of the limiting rod 11, at the moment, a trigger A16 fixed on a guide rod 8 in the sliding groove 6 triggers a proximity switch A17 arranged on the top end face of the sliding groove 6, and then a controller starts a braking device connected on the roller 3 to prevent a lifting hook from impacting; the length of the limiting groove 10 is not less than the sum of the diameters of the three steel wire ropes arranged side by side, and the number of the steel wire ropes 4 on the roller 3 is not less than 3; the length of the limiting boss strip 12 is the sum of the diameters of the two steel wire ropes arranged side by side, so that the situation that the proximity switch A17 cannot be triggered by the trigger A16 due to the fact that the limiting boss strip 12 is clamped between two adjacent circles of the steel wire ropes 4 is prevented; the sum of the heights of the limiting groove 10 and the limiting lug boss strip 12 is not more than the diameter of the steel wire, so that friction between the roller 3 and the limiting lug boss strip 12 is prevented; a buffer device 15 is arranged between the proximity switch B14 and the chute 6 to protect the proximity switch B14; the position of the limiting lug boss strip 12 on the limiting rod 11 is adjustable, and the ascending limit position of the steel wire rope 4 can be adjusted according to the actual installation condition; in summary, the invention has the advantages of simple and reasonable structure, capability of effectively preventing the over-laying of the steel wire rope on the roller and the top punching of the lifting hook, and convenient use.
Claims (2)
1. The utility model provides a hoisting mechanism stroke stop device, it includes two hinged brackets, its characterized in that: a main shaft is arranged between the two hinged supports, a roller is arranged on the main shaft, a steel wire rope is wound on the roller, a limiting rod parallel to the direction of the main shaft is arranged above the steel wire rope on the roller, a limiting groove is arranged at one end, close to the fixed end of the steel wire rope, of the lower surface of the limiting rod, a limiting boss strip is arranged on the lower surface of the limiting rod, two ends of the limiting rod are respectively connected with a sliding block, the sliding block is arranged in a sliding groove on the supporting frame in a sliding manner, the supporting frame is fixed on the hinged supports, a guide rod is arranged on the upper surface of the sliding block, a guide hole is formed in the top end surface of the supporting frame in the sliding manner, a compression spring is arranged around the guide rod between the sliding block and the top end surface of the sliding groove, a supporting table is arranged around the guide rod on the top end surface of the, the lower surface of the supporting table is fixed with a proximity switch A, a trigger A is arranged below the proximity switch A on the guide rod, a trigger B is arranged on the lower surface of the sliding block, a proximity switch B is arranged below the trigger B on the lower surface of the sliding groove, the length of the limiting groove is not less than the sum of the diameters of three steel wire ropes arranged side by side, the length of the limiting boss strip is the sum of the diameters of two steel wire ropes arranged side by side, the sum of the heights of the limiting groove and the limiting boss strip is not more than the diameter of the steel wire, the supporting frame is detachably connected with the hinge base, and the position of the limiting boss strip on the limiting rod is adjustable.
2. A hoist travel limiter according to claim 1 wherein: and a buffer device is arranged between the proximity switch B and the sliding chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982981.8A CN108002265B (en) | 2017-10-20 | 2017-10-20 | Travel limiting device of hoisting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710982981.8A CN108002265B (en) | 2017-10-20 | 2017-10-20 | Travel limiting device of hoisting mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108002265A CN108002265A (en) | 2018-05-08 |
| CN108002265B true CN108002265B (en) | 2019-12-10 |
Family
ID=62051819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710982981.8A Expired - Fee Related CN108002265B (en) | 2017-10-20 | 2017-10-20 | Travel limiting device of hoisting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108002265B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358587A (en) * | 2011-09-02 | 2012-02-22 | 蚌埠市新黄山玻璃制品有限公司 | Steel wire rope protection device of titled creeper of hoisting machine |
| CN203359883U (en) * | 2013-07-29 | 2013-12-25 | 江苏绿叶机械有限公司 | Rope arranging device of hoisting mechanism of clinker bulk loader |
| CN203922564U (en) * | 2014-06-23 | 2014-11-05 | 冠亚机械工业（昆山）有限公司 | A kind of steel-wire rope type electric block with synthesized device |
| CN205527489U (en) * | 2016-04-27 | 2016-08-31 | 张春强 | Hoist stroke down stop device |
| CN205855883U (en) * | 2016-07-29 | 2017-01-04 | 河南省矿山起重机有限公司 | A kind of driving descending stopping means of reel steel wire ropes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE0004747D0 (en) * | 2000-12-20 | 2000-12-20 | Mtm I Aarjaeng Ab | Hoist |
-
2017
- 2017-10-20 CN CN201710982981.8A patent/CN108002265B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102358587A (en) * | 2011-09-02 | 2012-02-22 | 蚌埠市新黄山玻璃制品有限公司 | Steel wire rope protection device of titled creeper of hoisting machine |
| CN203359883U (en) * | 2013-07-29 | 2013-12-25 | 江苏绿叶机械有限公司 | Rope arranging device of hoisting mechanism of clinker bulk loader |
| CN203922564U (en) * | 2014-06-23 | 2014-11-05 | 冠亚机械工业（昆山）有限公司 | A kind of steel-wire rope type electric block with synthesized device |
| CN205527489U (en) * | 2016-04-27 | 2016-08-31 | 张春强 | Hoist stroke down stop device |
| CN205855883U (en) * | 2016-07-29 | 2017-01-04 | 河南省矿山起重机有限公司 | A kind of driving descending stopping means of reel steel wire ropes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108002265A (en) | 2018-05-08 |
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| SE01 | Entry into force of request for substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191210 Termination date: 20201020 |
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| CF01 | Termination of patent right due to non-payment of annual fee |