CN1051024A - A kind of hoisting system - Google Patents
A kind of hoisting system Download PDFInfo
- Publication number
- CN1051024A CN1051024A CN 89108070 CN89108070A CN1051024A CN 1051024 A CN1051024 A CN 1051024A CN 89108070 CN89108070 CN 89108070 CN 89108070 A CN89108070 A CN 89108070A CN 1051024 A CN1051024 A CN 1051024A
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- load
- spring
- pulley
- hoisting system
- bob
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Abstract
The hoisting system that uses in a kind of lifting heavy cargo device according to the Euler's formula principle design, it is formed except load-carrying device 1, support 2, elevating drum 3, derrick line 4 and transmission device and back-stop mechanism are arranged, and it is characterized in that it also has spring 5 and pulley 6.Characteristics of the present invention are to replace the bob-weight in the hoisting system to come load-carrying device 1 is executed balancing force with spring, and this way has solved the poor stability that bob-weight brought in this system, the problem that troublesome poeration and system architecture are not compact.
Description
The present invention relates to be used for to load or unload the hoisting system of device of the lifting heavy cargo of purpose.
Patent Office of the People's Republic of China's patent granted number be 87208417 a kind of simple and easy fork truck patent different with prior art be that jacking system on this fork truck is a kind of hoisting system according to the Euler's formula principle design.Its major part of this system comprises carrying apparatus, support, elevating drum, derrick line, can make elevating drum only make transmission device and back-stop mechanism and the bob-weight etc. of folk prescription to rotation.Its characteristics descend for the carrying apparatus at full load on this fork truck and the liter when unloaded with fall people all can be directly by carrying out to bob-weight or to the derrick line application of force that hanging balancing is hammered into shape, and need not pass through speed change system.Therefore, this fork truck has the very high advantage of handling efficiency.This hoisting system recited above not only can be on hand fork lifter, and uses in the device of its lifting heavy cargo of also can be widely using in places such as building ground, warehouse, dwelling house and factory floors.But, this hoisting system also has blemish in an otherwise perfect thing.At first show as: fully loaded with cargo load-carrying device is unsettled and when being in static balance with bob-weight, people must pay close attention to and not allow other beyond thought external force be applied on the bob-weight, balancing force is reduced suddenly or lose, otherwise goods and loading will be degenerated and may be caused the accident that the goods damage people hinders; Secondly: when employed its elevating drum of this hoisting system is installed higherly in the device of lifting heavy cargo, hammer lower and upper the moving that also will do than large span into shape along with the up and down balance system of load-carrying device, in order to make bob-weight place scope that the people can touch so that adjust balancing force at any time, people's have to often adjust height of bob-weight, as seen, the quite trouble that operates also; Once more: bob-weight makes total system become loose, not compact.
The objective of the invention is above-mentioned hoisting system is improved,, also solve its troublesome poeration and the not compact problem of structure simultaneously to eliminate the safety hazard that bob-weight brings for this system.
Fig. 1, Fig. 2 are the hoisting system structural representations according to the Euler's formula principle design after improving in the accompanying drawing.
With reference to accompanying drawing 1, Fig. 2: compare with the hoisting system before improving, the present invention also has load-carrying device 1, support 2, elevating drum 3, derrick line 4 and can make 3 of elevating drums make transmission device and the back-stop mechanism of folk prescription to rotation.Said derrick line 4 is wrapped on the elevating drum 3, one end and load-carrying device 1 are fixedly linked (as shown in Figure 1), when if this hoisting system is many ropes system, this end of derrick line 4 links to each other (as shown in Figure 2) with load-carrying device 1 by pulley, what the present invention was different is, also be provided with spring 5 and pulley 6 in this system, one end of said spring 5 is connected pulley 6 with the support 2 continuous other ends, the other end of said derrick line 4 is fixedly linked (as shown in Figure 1) with load-carrying device 1 after wearing and walking around pulley 5, and this end of derrick line 4 linked to each other (as shown in Figure 2) with load-carrying device 1 by pulley after wearing and walking around pulley 5 when perhaps hoisting system was many ropes system.
We can see through contrast, though the present invention just replaces bob-weight with spring, the gravity that becomes bob-weight imposes balancing force into the elastic force of spring, friction force between derrick line and elevating drum to the carrying apparatus that is under zero load or the fully loaded mode of operation, but, the elastic force of spring is disappeared and only can strengthen from any external force (damage capacity except), as seen, it has overcome the safety hazard of bob-weight.Simultaneously, spring has replaced people behind the bob-weight also to remove the adjustment operation of bob-weight from, and it is more convenient to work together, and in addition, it is compacter, more reasonable that total system also becomes.
Friction force is reduced behind the greasy dirt or thereby the elastic force of spring 5 weakens and causes that balancing force reduces in order to prevent to infiltrate between the elevating drum 3 and derrick line 4 year in and year out, the said spring 5 of the present invention can link to each other (as shown in Figure 3) by a governing screw 7 with support 2, like this, when above-mentioned situation took place, people can adjust balancing force by governing screw 10.
Fig. 4 is the concrete application example on 87208417 a kind of simple and easy fork truck in the patent No. in the present invention.Hoisting system on this fork truck is a duplex type system.Wherein 1 is load-carrying device, and 2 is support, and 3 is elevating drum, and 4 is steel rope, and 5 is spring, and 6 is pulley, and 7 is governing screw.
Claims (2)
1, the hoisting system that a kind of device that is used to load or unload the lifting heavy cargo of purpose uses, comprise load-carrying device 1, support 2, elevating drum 3, derrick line 4 and can make 3 of elevating drums do folk prescription to the rotation transmission device and back-stop mechanism, said derrick line 6 is wrapped on the elevating drum 3, the one end is fixedly linked with load-carrying device 1 or links to each other by pulley, feature of the present invention is, also be provided with spring 5 and pulley 6 in this hoisting system, one end of said spring 5 and support 2 other ends that link to each other are connected pulley 6, and the other end of said derrick line 4 is worn and walked around pulley 6 and be fixedly linked with load-carrying device or link to each other by pulley.
2,, it is characterized in that to link to each other by a governing screw 7 between said spring 5 and the support 2 according to the said hoisting system of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89108070 CN1051024A (en) | 1989-10-17 | 1989-10-17 | A kind of hoisting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89108070 CN1051024A (en) | 1989-10-17 | 1989-10-17 | A kind of hoisting system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1051024A true CN1051024A (en) | 1991-05-01 |
Family
ID=4857448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89108070 Pending CN1051024A (en) | 1989-10-17 | 1989-10-17 | A kind of hoisting system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1051024A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379833A (en) * | 2016-11-29 | 2017-02-08 | 无锡特恒科技有限公司 | Steel wire rope drawing mechanism |
| CN106430036A (en) * | 2016-11-29 | 2017-02-22 | 无锡特恒科技有限公司 | Tension spring gravity pulling mechanism |
| CN110002359A (en) * | 2018-01-05 | 2019-07-12 | 神技保寿美株式会社 | Operation elevator |
| CN110466862A (en) * | 2019-08-22 | 2019-11-19 | 格力电器（武汉）有限公司 | The unpowered high device of automatic constant |
| CN111392621A (en) * | 2020-04-14 | 2020-07-10 | 株洲市东亨科技有限责任公司 | Hoisting apparatus for subway tunnel construction |
-
1989
- 1989-10-17 CN CN 89108070 patent/CN1051024A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106379833A (en) * | 2016-11-29 | 2017-02-08 | 无锡特恒科技有限公司 | Steel wire rope drawing mechanism |
| CN106430036A (en) * | 2016-11-29 | 2017-02-22 | 无锡特恒科技有限公司 | Tension spring gravity pulling mechanism |
| CN110002359A (en) * | 2018-01-05 | 2019-07-12 | 神技保寿美株式会社 | Operation elevator |
| CN110466862A (en) * | 2019-08-22 | 2019-11-19 | 格力电器（武汉）有限公司 | The unpowered high device of automatic constant |
| CN111392621A (en) * | 2020-04-14 | 2020-07-10 | 株洲市东亨科技有限责任公司 | Hoisting apparatus for subway tunnel construction |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |