CN101825483A - Motion accompanying suspension device providing constant hanging force - Google Patents
Motion accompanying suspension device providing constant hanging force Download PDFInfo
- Publication number
- CN101825483A CN101825483A CN 201010166019 CN201010166019A CN101825483A CN 101825483 A CN101825483 A CN 101825483A CN 201010166019 CN201010166019 CN 201010166019 CN 201010166019 A CN201010166019 A CN 201010166019A CN 101825483 A CN101825483 A CN 101825483A
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- fixed pulley
- pulley
- air
- travelling block
- seat
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- 239000000725 suspension Substances 0.000 title claims abstract description 39
- 208000020442 loss of weight Diseases 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 13
- 238000005188 flotation Methods 0.000 abstract description 3
- 239000013585 weight reducing agent Substances 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The invention provides a motion accompanying suspension device providing constant hanging force. The device comprises an aerostatic guide rail, a first fixed pulley, a second fixed pulley, an additional fixed pulley, a movable pulley, a suspension rope and a weight reduction weight, wherein slide blocks are slidably arranged on the aerostatic guide rail, and are fixedly connected with a fixed pulley seat; the first fixed pulley and the second fixed pulley are arranged on the fixed pulley seat; the movable pulley is arranged on a movable pulley seat; a moving part is hoisted on the movable pulley seat; one end of the suspension rope is fixed on a fixed framework; the suspension rope passes through the first fixed pulley, the movable pulley, the second fixed pulley and the additional fixed pulley in sequence; the other end of the suspension rope is connected with the weight reduction weight; the first fixed pulley and the second fixed pulley are flotation bearing pulleys; air inlet holes are reserved on the axle centers of the first fixed pulley and the second fixed pulley; the air inlet holes are communicated with high-pressure gas inlet pipes; and the moving part is hoisted on the movable pulley seat. The device has the advantages of small friction resistance, high quality accuracy and high motion accuracy, and can better adapt to high-accuracy situations.
Description
Technical field
The present invention relates to air-floating apparatus, especially a kind of hunting gear that constant hanging force is provided.
Background technology
Under the test condition of tested mechanism being hung loss of weight, mechanism performance is carried out the test of every technical indicator.According to mechanism's suspension centre movement locus, when doing horizontal rectilinear motion or plane motion, necessarily require sling point all to guarantee to provide constant hanging force at vertical direction (being defined as the Z axle), this just requires the suspension apparatus must can be in the servo-actuated of Z axle.And in suspension centre tracking mechanism motion process, do not produce additional force as much as possible, thereby influence the locus or the motion state of mechanism.
The defective that existing accompanying suspension device exists: frictional resistance is bigger, influences the hanging force size thereby double swerve appears in the counterweight counterweight when moving up and down, and can not adapt to the high precision occasion.
Summary of the invention
In order to overcome the deficiency that the frictional resistance that has accompanying suspension device is big, can not adapt to the high precision occasion, it is very little to the invention provides a kind of frictional resistance, the motion accompanying suspension device that constant hanging force is provided of the energy good conformity high precision occasion of no counterweight counterweight wobble effects.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of motion accompanying suspension device that constant hanging force is provided, comprise air-float guide rail, slide block is installed on the described air-float guide rail slidably, described slide block is fixedlyed connected with the fixed pulley seat, described accompanying suspension device also comprises first fixed pulley, second fixed pulley, additional fixed pulley, travelling block, suspension strop and loss of weight counterweight, described first fixed pulley and second fixed pulley are installed on the described fixed pulley seat, described travelling block is installed on the travelling block seat, described travelling block seat lifts described movement parts, one end of suspension strop is fixed on the fixed frame, and pass first fixed pulley successively, travelling block, second fixed pulley and additional fixed pulley, the other end of described suspension strop connects the loss of weight counterweight, described first fixed pulley and second fixed pulley are the air-bearing pulley, described first fixed pulley and the second fixed pulley axle center all have air admission hole, described air admission hole is communicated with the gases at high pressure draft tube, and movement parts is lifted on the described travelling block seat.
Further, described loss of weight counterweight is installed in lower end of the guide rod, and described guide rod is connected with the other end of suspension strop, and described leader casing is contained on the auxiliary air bearing, and the air intake opening of described air bearing is communicated with described gases at high pressure draft tube.
Further again, described additional fixed pulley is the air-bearing pulley, and described additional fixed pulley axle center all has air admission hole, and described air admission hole is communicated with the gases at high pressure draft tube.
Further, described travelling block is the air-bearing pulley, and described travelling block axle center all has air admission hole, and described air admission hole is communicated with the gases at high pressure draft tube.
Described travelling block seat connects hanging rope, and movement parts is lifted on the described hanging rope.
Technical conceive of the present invention is: in suspension centre tracking mechanism motion process, adopt air flotation technology to reduce friction.The effect of linear motion guide rail is to be used for supporting and the guided-moving parts, does linear reciprocating motion by given direction.Decide according to pressing friction character, linear motion guide rail can be divided into kinds such as sliding friction guide rail, rolling friction guide rail, elastic-friction guide rail, fluid friction guide rail.When movement parts when holding the guiding element moving linearly, the guide rail that holds on the guiding element plays a part to support and guiding, i.e. support motion spare and guarantee that movement parts under the effect of external force (weight of load and movement parts itself), carries out rectilinear motion along given direction.Air-float guide rail belongs to a kind of of line slideway, is to adopt pressure gas to produce air film, realizes the frictionless motion of guide rail and slide block.
It is then more easy to adopt air bearing to replace plain bearing to make the air supporting pulley.Adopt air flotation technology to have characteristics such as frictional resistance is little, kinematic accuracy is high, cleanliness without any pollution, in surveying instrument, precision optical machinery, obtained in recent years using widely.
Beneficial effect of the present invention mainly shows: two dimensional motion friction force is little, and no additional force disturbs, the suspension force value stabilization, and no wobble effects can adapt to the high-acruracy survey requirement.
Description of drawings
Fig. 1 provides the structural drawing of the motion accompanying suspension device of constant hanging force.
Embodiment
Below in conjunction with accompanying drawing the present invention is described further.
With reference to Fig. 1, a kind of motion accompanying suspension device that constant hanging force is provided, comprise air-float guide rail 1, on the described air-float guide rail 1 slide block 2 is installed slidably, described slide block 2 is fixedlyed connected with fixed pulley seat 3, described accompanying suspension device also comprises first fixed pulley 4, second fixed pulley 5, additional fixed pulley 6, travelling block 7, suspension strop 8 and loss of weight counterweight 9, described first fixed pulley 4 and second fixed pulley 5 are installed on the described fixed pulley seat 3, described travelling block 7 is installed on the travelling block seat 10, the described movement parts of described travelling block seat 10 liftings, one end of suspension strop 8 is fixed on the fixed frame, and pass first fixed pulley 4 successively, travelling block 7, second fixed pulley 5 and additional fixed pulley 6, the other end of described suspension strop 8 connects loss of weight counterweight 9, described first fixed pulley 4 and second fixed pulley 5 are the air-bearing pulley, the axle center of described first fixed pulley 4 and second fixed pulley 5 all has air admission hole, and described air admission hole is communicated with the gases at high pressure draft tube, and movement parts 12 is lifted on the described travelling block seat 10.
Described loss of weight counterweight 9 is installed in guide rod 13 lower ends, and described guide rod 13 is connected with the other end of suspension strop, and described guide rod 13 is sleeved on the auxiliary air bearing 14, and the air intake opening of described auxiliary air bearing 14 is communicated with described gases at high pressure draft tube.
Described additional fixed pulley 6 is the air-bearing pulley, and described additional fixed pulley 6 axle center all have air admission hole, and described air admission hole is communicated with the gases at high pressure draft tube.
Described travelling block 7 is the air-bearing pulley, and described travelling block axle center has air admission hole, and described air admission hole is communicated with the gases at high pressure draft tube.
Described travelling block seat 10 connects hanging rope, and movement parts 12 is lifted on the described hanging rope.
In the present embodiment, suspension strop 8 one ends are fixed on the fixed frame, and after walking around first fixed pulley, travelling block, second fixed pulley successively, being fixed on the additional fixed pulley on the framework, the other end connects the loss of weight counterweight.In order to reduce friction, all adopt air-bearing to be connected between each pulley and pulley spindle.
The course of work is as follows: constant hanging force is realized: adjust counterweight counterweight weight according to required loss of weight amount.When movement parts was done the motion of Z axle, because the maintenance of the gravity of loss of weight counterweight is constant, the loss of weight counterweight moved up and down to guarantee constant hanging force.Because pulley all adopts air-bearing, therefore can not exert an influence to hanging force.When loss of weight is hung up and down rapid movement, counterweight can roll, thereby may cause the instability of hanging force, solution is: hanging rope connects guide rod, fixedly connected with the loss of weight counterweight in the guide rod bottom, the outer socket air bearing of guide rod guarantees that by air bearing guide rod can only move at the Z axle, and do not have the degree of freedom of X and Y direction, so just can prevent effectively that the loss of weight counterweight from rocking the influence to hanging force.And because the no rubbing characteristics between air bearing and guide rod has guaranteed that hanging force is unaffected.The length of guide rod is determined at the actuating range of Z axle by movement parts, guarantees that movement parts gets final product in air bearing all the time at whole range of movement inner guide.
The X-axis frictionless motion is followed realization: when the test specimen tangential movement, fixed pulley on the slide block and travelling block motion, the fixed pulley on right side remains unchanged, be that the loss of weight counterweight remains unchanged, suffered additional force main source is the friction force between slide block and guide rail during the movement parts motion, the friction force of pulley itself.Because what adopt is air-float guide rail, there is not friction on the guide rail in the time of therefore can thinking the X-axis motion.And because all pulleys all adopt the air supporting pulley, so just can guarantee does not almost have friction when hanging rope moves on pulley, thus horizontal direction only the very little power of need just can allow the tangential movement of slide block accompany movement part.
Claims (5)
1. motion accompanying suspension device that constant hanging force is provided, comprise air-float guide rail, slide block is installed on the described air-float guide rail slidably, described slide block is fixedlyed connected with the fixed pulley seat, it is characterized in that: described accompanying suspension device also comprises first fixed pulley, second fixed pulley, additional fixed pulley, travelling block, suspension strop and loss of weight counterweight, described first fixed pulley and second fixed pulley are installed on the described fixed pulley seat, described travelling block is installed on the travelling block seat, described travelling block seat lifts described movement parts, one end of suspension strop is fixed on the fixed frame, and pass first fixed pulley successively, travelling block, second fixed pulley and additional fixed pulley, the other end of described suspension strop connects the loss of weight counterweight, described first fixed pulley and second fixed pulley are the air-bearing pulley, described first fixed pulley and the second fixed pulley axle center all have air admission hole, described air admission hole is communicated with the gases at high pressure draft tube, and movement parts is lifted on the described travelling block seat.
2. the motion accompanying suspension device that constant hanging force is provided as claimed in claim 1, it is characterized in that: described loss of weight counterweight is installed in lower end of the guide rod, described guide rod is connected with the other end of suspension strop, described leader casing is contained on the auxiliary air bearing, and the air intake opening of described air bearing is communicated with described gases at high pressure draft tube.
3. the motion accompanying suspension device that constant hanging force is provided as claimed in claim 1 or 2 is characterized in that: described additional fixed pulley is the air-bearing pulley, and described additional fixed pulley axle center all has air admission hole, and described air admission hole is communicated with the gases at high pressure draft tube.
4. the motion accompanying suspension device that constant hanging force is provided as claimed in claim 1 or 2 is characterized in that: described travelling block is the air-bearing pulley, and described travelling block axle center all has air admission hole, and described air admission hole is communicated with the gases at high pressure draft tube.
5. the motion accompanying suspension device that constant hanging force is provided as claimed in claim 1 or 2 is characterized in that: described travelling block seat connects hanging rope, and movement parts is lifted on the described hanging rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010166019 CN101825483A (en) | 2010-05-07 | 2010-05-07 | Motion accompanying suspension device providing constant hanging force |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010166019 CN101825483A (en) | 2010-05-07 | 2010-05-07 | Motion accompanying suspension device providing constant hanging force |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101825483A true CN101825483A (en) | 2010-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010166019 Pending CN101825483A (en) | 2010-05-07 | 2010-05-07 | Motion accompanying suspension device providing constant hanging force |
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| CN (1) | CN101825483A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192999A (en) * | 2013-03-08 | 2013-07-10 | 北京航空航天大学 | Ground zero-gravity test device for small-space one-dimension extension mechanism |
| CN103508385A (en) * | 2013-10-18 | 2014-01-15 | 浙江工业大学 | Long distance and two-dimensional constant force hoisting device |
| CN103523719A (en) * | 2013-10-18 | 2014-01-22 | 浙江工业大学 | Long-distance two-dimensional following constant force hoisting device |
| CN106840726A (en) * | 2017-02-20 | 2017-06-13 | 上海卫星装备研究所 | Large scale storage high launches test method and device than stretching truss |
| CN107271105A (en) * | 2017-07-27 | 2017-10-20 | 潍坊学院 | It is a kind of to measure the three-line pendulum of eccentric object rotation inertia |
| CN109559605A (en) * | 2019-01-10 | 2019-04-02 | 中国矿业大学(北京) | A kind of easy device being capable of providing constant push and draw force |
| CN113501148A (en) * | 2021-08-18 | 2021-10-15 | 哈尔滨工业大学 | Polar coordinate tracking type air-floatation pulley guide counterweight suspension micro-low gravity simulation system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2153110Y (en) * | 1993-05-24 | 1994-01-12 | 承德石油高等专科学校 | Tester for increasing mass on aircushion rail |
| CN1230515A (en) * | 1998-04-01 | 1999-10-06 | 谢沃林 | Earthwork loading and transporting equipment |
| DE102004015106A1 (en) * | 2004-03-27 | 2005-10-20 | Autoliv Dev | Returning mechanism for safety belt in motor vehicle has pulley accommodated in end bearing journals rigidly connected to direction changing fitting with air bearings operating in radial and axial directions |
| CN101126681A (en) * | 2007-09-21 | 2008-02-20 | 浙江工业大学 | Air-float magneto motive friction-free suspension device |
-
2010
- 2010-05-07 CN CN 201010166019 patent/CN101825483A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2153110Y (en) * | 1993-05-24 | 1994-01-12 | 承德石油高等专科学校 | Tester for increasing mass on aircushion rail |
| CN1230515A (en) * | 1998-04-01 | 1999-10-06 | 谢沃林 | Earthwork loading and transporting equipment |
| DE102004015106A1 (en) * | 2004-03-27 | 2005-10-20 | Autoliv Dev | Returning mechanism for safety belt in motor vehicle has pulley accommodated in end bearing journals rigidly connected to direction changing fitting with air bearings operating in radial and axial directions |
| CN101126681A (en) * | 2007-09-21 | 2008-02-20 | 浙江工业大学 | Air-float magneto motive friction-free suspension device |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103192999A (en) * | 2013-03-08 | 2013-07-10 | 北京航空航天大学 | Ground zero-gravity test device for small-space one-dimension extension mechanism |
| CN103508385A (en) * | 2013-10-18 | 2014-01-15 | 浙江工业大学 | Long distance and two-dimensional constant force hoisting device |
| CN103523719A (en) * | 2013-10-18 | 2014-01-22 | 浙江工业大学 | Long-distance two-dimensional following constant force hoisting device |
| CN103523719B (en) * | 2013-10-18 | 2015-08-05 | 浙江工业大学 | Long-distance 2 D follows constant force erecting by overhang |
| CN103508385B (en) * | 2013-10-18 | 2015-08-05 | 浙江工业大学 | A kind of long-distance 2 D constant force erecting by overhang |
| CN106840726A (en) * | 2017-02-20 | 2017-06-13 | 上海卫星装备研究所 | Large scale storage high launches test method and device than stretching truss |
| CN107271105A (en) * | 2017-07-27 | 2017-10-20 | 潍坊学院 | It is a kind of to measure the three-line pendulum of eccentric object rotation inertia |
| CN109559605A (en) * | 2019-01-10 | 2019-04-02 | 中国矿业大学(北京) | A kind of easy device being capable of providing constant push and draw force |
| CN113501148A (en) * | 2021-08-18 | 2021-10-15 | 哈尔滨工业大学 | Polar coordinate tracking type air-floatation pulley guide counterweight suspension micro-low gravity simulation system |
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Application publication date: 20100908 |