CN2378377Y - Self-balance up-down mechanism - Google Patents
Self-balance up-down mechanism Download PDFInfo
- Publication number
- CN2378377Y CN2378377Y CN 99234760 CN99234760U CN2378377Y CN 2378377 Y CN2378377 Y CN 2378377Y CN 99234760 CN99234760 CN 99234760 CN 99234760 U CN99234760 U CN 99234760U CN 2378377 Y CN2378377 Y CN 2378377Y
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- self
- movable pulley
- guide wheel
- spring
- utility
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Abstract
The utility model relates to a self-balance up-down mechanism. Antisymmetric variable diameter screw guide wheels are fixedly arranged at the upper end in a mechanism bracket, the end heads of a wire rope at the inner end of the antisymmetric variable diameter screw guide wheels are fixed on the bracket after wound on a movable pulley which is fixedly connected with a spring by a U-shaped frame, and thereby, loads and the travel of up-down objects of the utility model are increased. The utility model has the advantages of favorable self-balance effects, simple structure, easy fabrication and convenient operation and use. The utility model is suitable for self-balance lifting of various large apparatuses.
Description
The utility model belongs to the structural development of self-balancing jacking system.
In many large-scale instrument and equipments and device, all need to adopt the self-balancing lifting mechanism, as medical facilities such as X-ray equipments.This self-balancing lifting mechanism not only requires the self-balancing of lifting thing at any lifting position, and wishes the heavier lifting thing of energy load, and makes its lifting travel bigger.The structure type of self-balancing lifting mechanism has multiple, and the type that the utility model relates to is made up of mechanism rack, spring, diameter variable spiral guide wheel and lay winding wire ropes etc.This self-balancing lifting mechanism is to lean on the elastic force of spring as balancing force, by the diameter variable spiral guide wheel moment values of spring tension is equated, realizes the balance of lifting process.But what it adopted because conventional device structurally also has a weak point is the diameter variable spiral guide wheel (the lifting thing end that is screw guide wheel is identical with the tapering of spring terminal) of two ends, left and right sides symmetry, and steel rope directly is connected with spring, thereby the lifting travel of lifting thing and load all are restricted, its range is less than 300mm, maximum load is less than 10Kg, the more important thing is the self-balancing that it is difficult to realize the optional position, a return gap is always arranged.This has just influenced the in-use performance and the effect of self-balancing lifting mechanism.
The purpose of this utility model is exactly the design self-balancing lifting mechanism that a kind of lifting travel is bigger, load is heavier, and makes its self-balancing better effects if.
The composition of the self-balancing lifting mechanism that the utility model is designed has: mechanism rack, spring, diameter variable spiral guide wheel, movable pulley and lay winding wire ropes.Its constructional feature is: the diameter variable spiral guide wheel that the upper end fixedly installs in mechanism rack, it is fixed on the support after leaning on the termination of the steel rope that twines on the spring terminal to be wound in movable pulley, movable pulley is fixed on the U type frame, and spring is captiveed joint with U type frame bottom; The two ends, the left and right sides of described diameter variable spiral guide wheel are non-symmetrical.Characteristics of the present utility model are that also described asymmetric diameter variable spiral guide wheel is 35 °～38 ° by the cone angle variation range of lifting thing end, and its cone angle variation range by spring terminal is-5 °～+ 5 °.In addition, the two side is provided with guide rail in the mechanism rack, and movable pulley U type frame is arranged on the guide rail, and movable pulley can only be moved up and down along guide rail.
Because the designed self-balancing lifting mechanism of the utility model adopts the asymmetric diameter variable spiral guide wheel of left and right sides two halves, its by the cone angle of spring terminal part and awl footpath all less than the other end, add the setting of movable pulley, make the same stroke when stressed of spring diminish, so the load of lifting thing and stroke are increased, and make the better effects if of self-balancing, its load can reach 15Kg, and range can reach 600mm; And that the utility model also has is simple in structure, make easily, use easy to operate advantage, installs stepping motor additional and then can realize automatic operation on the screw guide wheel axle.
Accompanying drawing is the structural representation of the designed self-balancing lifting mechanism of the utility model, and 1 is non-symmetrical diameter variable spiral guide wheel among the figure, and 2 is mechanism rack, and 3 is steel rope, and 4 is movable pulley, and 5 is pulley U type frame, and 6 is spring, and 7 are the lifting thing.
Describe technology implementation scheme of the present utility model in detail below in conjunction with accompanying drawing.
Referring to accompanying drawing, the designed self-balancing lifting mechanism of the utility model is that the upper end fixedly installs asymmetric diameter variable spiral guide wheel in mechanism rack, guide wheel is 35 ° by the cone angle of lifting thing end, the termination of twining steel rope thereon is connected in the lifting thing, cone angle by spring terminal is 0 °, is fixed on the support after the termination of winding steel rope thereon is wound in movable pulley; The two side is provided with guide rail in the mechanism rack, and movable pulley is fixed on the U type frame, and the U type sets up and places on the guide rail, and spring is fixedly connected on the bottom of U type frame.Lift the lifting thing during use, the steel rope of outer end drives screw guide wheel and rotates, and the steel rope that twine the inner end is put down, spring relies on pulling force that movable pulley is drop-down along guide rail, make steel rope in tension again, make two ends be in balance again, thereby realize the purpose of self-balancing.
Described asymmetric diameter variable spiral guide wheel by the cone angle of spring terminal can select-5 °, 0 ° ,+5 ° of three kinds of patterns.
Claims (3)
1. self-balancing lifting mechanism, its composition has: mechanism rack, spring, diameter variable spiral guide wheel, movable pulley and lay winding wire ropes; It is characterized in that, the diameter variable spiral guide wheel that the upper end fixedly installs in mechanism rack, it is fixed on the mechanism rack after leaning on the termination of the steel rope that twines on the spring terminal to be wound in movable pulley, and movable pulley is fixed on the U type frame, and spring is captiveed joint with U type frame bottom; The two ends, the left and right sides of described diameter variable spiral guide wheel are non-symmetrical.
2. lifting mechanism according to claim 1 is characterized in that the two side is provided with guide rail in the mechanism rack, and movable pulley U type frame is arranged on the guide rail, and movable pulley can only be moved up and down along guide rail.
3. lifting mechanism according to claim 1 and 2 is characterized in that, described asymmetric diameter variable spiral guide wheel is 35 °～38 ° by the cone angle variation range of lifting thing end, and its cone angle variation range by spring terminal is-5 °～+ 5 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234760 CN2378377Y (en) | 1999-07-06 | 1999-07-06 | Self-balance up-down mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99234760 CN2378377Y (en) | 1999-07-06 | 1999-07-06 | Self-balance up-down mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2378377Y true CN2378377Y (en) | 2000-05-17 |
Family
ID=34022855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99234760 Expired - Fee Related CN2378377Y (en) | 1999-07-06 | 1999-07-06 | Self-balance up-down mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2378377Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230774B (en) * | 2007-01-23 | 2011-03-09 | 金男顺 | Lifting/lowering device of self-neutralization door and window |
| CN103342319A (en) * | 2013-07-22 | 2013-10-09 | 吴江市久泰机械有限公司 | Lifting mechanism capable of stopping at any position |
| CN106809777A (en) * | 2017-03-21 | 2017-06-09 | 武汉科技大学城市学院 | The steel wire rope deflection compensation device of elevating mechanism in movable life saving capsule |
-
1999
- 1999-07-06 CN CN 99234760 patent/CN2378377Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101230774B (en) * | 2007-01-23 | 2011-03-09 | 金男顺 | Lifting/lowering device of self-neutralization door and window |
| CN103342319A (en) * | 2013-07-22 | 2013-10-09 | 吴江市久泰机械有限公司 | Lifting mechanism capable of stopping at any position |
| CN103342319B (en) * | 2013-07-22 | 2015-04-01 | 吴江市久泰机械有限公司 | Lifting mechanism capable of stopping at any position |
| CN106809777A (en) * | 2017-03-21 | 2017-06-09 | 武汉科技大学城市学院 | The steel wire rope deflection compensation device of elevating mechanism in movable life saving capsule |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |