CN101734575B - Three-level lead screw linkage mechanical platform - Google Patents
Three-level lead screw linkage mechanical platform Download PDFInfo
- Publication number
- CN101734575B CN101734575B CN 200910259304 CN200910259304A CN101734575B CN 101734575 B CN101734575 B CN 101734575B CN 200910259304 CN200910259304 CN 200910259304 CN 200910259304 A CN200910259304 A CN 200910259304A CN 101734575 B CN101734575 B CN 101734575B
- Authority
- CN
- China
- Prior art keywords
- screw
- gear
- sleeve
- platform
- mechanical platform
- 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.)
- Active
Links
Images
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to a design method of mechanical platform lifting, in particular to a design method of three-level lead screw linkage mechanical platform lifting, belonging to the technical field of vacuum machine. Three levels of lead screws are mutually cooperated to form a double lead screw kinematic pair to control the transmission ratio of the whole device; the transmission ratio is transmitted to a double lead screw kinematic pair by the corresponding gear transmission pair to cause the three-level lead screw to link to drive the mechanism platform to lift. The invention obtains the lifting travel which is two times of self height; the mechanical lifting platform developed by the technology has small volume, compact structure, high positioning precision and large using range and can adopt liquid lubrication as well as solid lubrication.
Description
Technical field
The present invention relates to a kind of mechanical platform, be specifically related to a kind of mechanical platform of three-level lead screw linkage, belong to the vacuum machine technical field.
Background technology
The mechanical elevating platform is a kind of mechanical device commonly used in the engineering construction, and its elevating method commonly used has hydraulic method, pneumatic process and Mechanical Method.Hydraulic method has larger top lift, and has good self-locking performance, but its complex structure, maintenance difficult; Although the pneumatic process self-locking property is good, top lift is little, almost can not rise by on-load.Outside peaceful, vacuum environment is because its distinctive advantage more and more is applied in the production and processing of product.The for example welding of parts in the Aerospace Products can reduce the defectives such as pore, weld seam oxidation effectively under vacuum.Lifting table under the vacuum environment can only adopt vacuum grease to be lubricated, and can not adopt other media, and this specifically lubricates form and has also limited the applicable of hydraulic method and pneumatic process.There are not the problems such as liquid or Leakage Gas in Mechanical Method because simple in structure, easy to maintenance, obtains a wide range of applications.
U.S. Patent No. 4809814 (ST-GERMAIN J.), in their disclosed stage apparatus, utilize one group of hydraulic actuated push rod and hook-like part to come mobile platform, with the design of this hook-like part and be positioned to volume in the mast and be meshed, so that lifting platform.US Patent No is s.4293054(PIERI) and 4294332(READY), their disclosed stage apparatus comprise two masts, utilize gear that bench board is moved up and down along these two masts, this gear is by electrical motor and via suitable actuator drives.This gear and the respective rack engagement that is installed on the not dried thick stick forming section.China Patent Publication No. CN1451600A, disclose a kind of with smooth stem as by the direct effect body of lifting object, be used for the friction force realization self-locking that skewed slot that angular plane surface that stem axially forms an angle and stem face form folds up roller and bestows by roller.China Patent Publication No. CN1354121A discloses a kind of formula constant-torque uniform lifting platform of cutting out, and under the actuating device effect, cuts brace for two and rotates around main shaft, thereby make platform takeoff and landing.
Although all these existing platform lifting devices and method are all very effective, but the mast or the stem that play the guiding role have been related in these technology, because the existence of above-mentioned parts, the height of whole jacking system self will be very high, and the device adjustable height is very little with the oneself height ratio; Cross-bracing type lifting of lifting table height is also relevant with the device own vol, and when operating altitude was exigent, device also can be very huge.Simultaneously, the lifting precision of appeal elevating method is all lower, can not satisfy using in location and the kinematic accuracy situation about having higher requirements.
Summary of the invention
The objective of the invention is to have proposed a kind of mechanical platform of three-level lead screw linkage in order to solve the low problem of lifting precision of existing platform lifting device.
The objective of the invention is to realize by following technical method.
The mechanical platform of a kind of three-level lead screw linkage of the present invention comprises: mounting base, driving interface, workplatform, two conical gears, long gear, free gear, the double lead-screw with inside and outside tooth, center leading screw, screw set, screw, hexagonal bar iron and Antenna Type guideposts; Its annexation is: drive interface by bearing be installed in mounting base all-in-one-piece facade on, workplatform is connected with screw set by hexagonal bar iron, first conical gear is connected with axle on driving interface by key, this conical gear and second conical gear form one group of gear pair, and be installed on the axle vertical with mounting base by bearing, long gear is fixed together by hexagonal bar iron and second conical gear, only have the center leading screw of outer tooth vertically to be fixedly mounted on the base plate, double lead-screw and center leading screw with inside and outside tooth form one group of kinematic pair, free gear is fixed together by holding screw and double lead-screw, only has the screw set of interior tooth and the double lead-screw kinematic pair that partners; The Antenna Type guidepost is comprised of axis calibration and two sleeves, and wherein, the first sleeve is vertically mounted on the mounting base, and the second sleeve is nested in the first sleeve, and axis calibration is nested in the second sleeve, and adopts hexagonal with workplatform and get bolt and be connected.
The method of designing of the mechanical platform lifting of a kind of three-level lead screw linkage of the present invention, its implementation step is as follows:
1) establishing the mechanical platform oneself height is h, and adjustable height is L, according to the needs of mechanical platform lifting height, by 1.2≤L/h≤2 design mechanical platform oneself heights, the little 30～70mm of Length Ratio mechanical platform oneself height of leading screws at different levels;
2) three-level lead screw is worked in coordination, and forms the double lead-screw kinematic pair;
3) transmitting ratio of control mechanical platform;
4) select type of drive;
5) rotatablely moving of type of drive is delivered to the double lead-screw pair by corresponding gear driving pair;
6) three-level lead screw linkage and driving mechanical platform are done dipping and heaving;
7) guiding of mechanical platform adopts the Antenna Type structure.
Described step 2) leading screw, double lead-screw and screw set centered by the three-level lead screw in; Wherein, a pair of guide screw movement of double lead-screw and screw set mix proportion is secondary, and center leading screw and double lead-screw form a pair of double lead-screw kinematic pair of double lead-screw mix proportion;
Described step 2) the double lead-screw kinematic pair comprises that the secondary and a pair of dextrorotation guide screw movement of a pair of left-handed guide screw movement is secondary in;
In the described step 3), in order accurately to control platform location and kinematic accuracy, it is 1:4～1:16 that the mechanical platform transmitting ratio is set, and lifting platform speed is 0.05～2mm/r;
Type of drive can be chosen manual drives or motorized motions according to need of work in the described step 4);
The respective gears transmission is that taper gear pair and straight-tooth gear are secondary in the described step 5); Wherein, after the auxiliary driving of sense of motion process conical gear, become vertical direction by horizontal direction, sense of motion changes 90 °; Propulsive effort is delivered to the double lead-screw pair after by the straight-tooth gear auxiliary driving;
Three-level lead screw linkage refers to that the double lead-screw pair works simultaneously in the described step 6); Motion is delivered to the double lead-screw with inside and outside tooth, and the double lead-screw screw motion makes himself along the center guide screw movement on the one hand, on the other hand, drives again screw set and moves along it;
Antenna Type structure directing post is along with the step motion is done in mechanical platform rising or decline in the described step 7).
Beneficial effect
(1) the present invention can obtain the adjustable height of oneself height more than one times, greater than the additive method in the known technology in the situation that guarantees whole mechanical platform height minimum; Adopt the mechanical elevating platform by volume of this technology development little, compact conformation can satisfy the lifting table job requirements in less space;
(2) the present invention adopts three-level lead screw to work in coordination, and the interlock of the form of double lead-screw kinematic pair, and accuracy of positioning and the kinematic accuracy of device in motion process is high, can be applied in location and the demanding situation of kinematic accuracy;
(3) the present invention both can adopt lubricating liquid, also can adopt solid lubricant, and range of use is large; When adopting vacuum grease as the lubricant medium of each movable parts, effectively avoided the shortcoming of hydraulic pressure, pneumatic process, jacking system is directly used under the vacuum environment, expanded the use field of mechanical elevating platform.
Description of drawings
Fig. 1 is the scheme drawing of the minimum control position of platform lifting device;
Fig. 2 is the birds-eye view of Fig. 1
Scheme drawing when Fig. 3 is the high workload position of platform lifting device;
Wherein, 1-mounting base, 2-driving interface, 3-workplatform, 4-conical gear, 5-conical gear, the long gear of 6-, 7-free gear, 8-have double lead-screw, 9-center leading screw, 10-screw set, 11 screws, 12-hexagonal bar iron, 13-axis calibration, 14-the first sleeve, 15-second sleeve of inside and outside tooth.
The specific embodiment
The below engages drawings and Examples, and the invention will be further described, and Fig. 1 is the scheme drawing of the minimum control position of platform lifting device; Fig. 2 is the birds-eye view of Fig. 1; Scheme drawing when Fig. 3 is the high workload position of platform lifting device; Wherein, 1-mounting base, 2-driving interface, 3-workplatform, 4-conical gear, 5-conical gear, the long gear of 6-, 7-free gear, 8-have double lead-screw, 9-center leading screw, 10-screw set, 11-screw, 12-hexagonal bar iron, 13-axis calibration, 14-the first sleeve, 15-second sleeve of inside and outside tooth.
1) the mechanical platform lifting height is 600mm, according to mechanical platform L/h span is: 1.2≤L/h≤2, i.e. 300≤h≤500; Design mechanical platform oneself height is 400mm, and the length of center leading screw 9, double lead-screw 8 is 330mm, and the length of mariages cover 10 is 310mm, and the gross thickness of other annexes is 100mm, and Antenna Type guiding length is identical with leading screw length, as shown in Figure 1;
2) tooth of three-level lead screw distance is 1mm, and the composition double lead-screw kinematic pair of working in coordination;
3) transmitting ratio that mechanical platform is set is 1:5, and the mechanical platform ascending velocity is 2mm/r;
4) the mechanical elevating platform is fixed on the work top by mounting base 1, utilizes vacuum grease that each transferring elements is lubricated;
5) select the manual drives mode that power is provided, and be carried on the driving interface 2;
6) after the gear pair transmission of sense of motion through conical gear 4 and conical gear 5 compositions, become vertical direction by horizontal direction, sense of motion changes 90 °; Be delivered to the double lead-screw pair after the straight-tooth gear auxiliary driving of propulsive effort by straight-tooth gear 6 and free gear 7 compositions;
7) next plays motion to double lead-screw 8 in the drive of free gear 7, and the screw motion of double lead-screw 8 makes it do upward movement at body along center leading screw 9, on the other hand, drives simultaneously again screw set 10 and does upward movement along it;
8) along with the rising of workplatform 3, the Antenna Type guidepost rises together, and axis calibration 13 arrives after the end, then rise under the drive of the first sleeve 14 axis calibrations 13, the first sleeve 14 arrives after the end, continues to drive the second sleeve 15 and then rises, and carries out the step motion;
9) mechanical platform rising 600mm reaches operating altitude when namely whole device is highly for 1000mm, as shown in Figure 3, stops this moment driving, and utilizes the characteristics of leading screw self locked.
The mechanical platform rise height is 1.5 times of mechanical platform oneself height.
1) the mechanical platform lifting height is 800mm, according to mechanical platform L/h span is: 1.2≤L/h≤2, i.e. 400≤h≤667; Design mechanical platform oneself height is 500mm, and the length of center leading screw 9, double lead-screw 8 is 430mm, and the length of mariages cover 10 is 410mm, and the gross thickness of other annexes is 100mm, and Antenna Type guiding length is identical with leading screw length, as shown in Figure 1;
2) tooth of three-level lead screw distance is 1.5mm, and the composition double lead-screw kinematic pair of working in coordination;
3) transmitting ratio that mechanical platform is set is 1:10, and the mechanical platform ascending velocity is 3mm/r;
4) the mechanical elevating platform is fixed on the work top by mounting base 1, utilizes vacuum grease that each transferring elements is lubricated;
5) select the stepping motor type of drive that power is provided, and be carried on the driving interface 2;
6) after the gear pair transmission of sense of motion through conical gear 4 and conical gear 5 compositions, become vertical direction by horizontal direction, sense of motion changes 90 °; Be delivered to the double lead-screw pair after the straight-tooth gear auxiliary driving of propulsive effort by straight-tooth gear 6 and free gear 7 compositions;
7) next plays motion to double lead-screw 8 in the drive of free gear 7, and the screw motion of double lead-screw 8 makes it do upward movement at body along center leading screw 9, on the other hand, drives simultaneously again screw set 10 and does upward movement along it;
8) along with the rising of workplatform 3, the Antenna Type guidepost rises together, and axis calibration 13 arrives after the end, then rise under the drive of the first sleeve 14 axis calibrations 13, the first sleeve 14 arrives after the end, continues to drive the second sleeve 15 and then rises, and carries out the step motion;
9) workplatform rising 800mm reaches operating altitude when namely whole device is highly for 1300mm, as shown in Figure 3, stops this moment driving, and utilizes the characteristics of leading screw self locked.
The mechanical platform rise height is 1.6 times of mechanical platform oneself height.
Claims (1)
1. the mechanical platform of a three-level lead screw linkage is characterized in that comprising mounting base (1), drives interface (2), workplatform (3), two conical gears, long gear (6), free gear (7), the double lead-screw (8) with inside and outside tooth, center leading screw (9), screw set (10), holding screw (11), hexagonal bar iron (12), Antenna Type guidepost; Its annexation is: drive interface (2) by bearing be installed in mounting base (1) all-in-one-piece facade on, workplatform (3) is connected with screw set (10) by hexagonal bar iron (12), first conical gear is connected with axle on driving interface (2) by key, this conical gear and second conical gear gear pair that partners, and be installed on the axle vertical with mounting base (1) by bearing, long gear (6) is fixed together by hexagonal bar iron and second conical gear, only have the center leading screw (9) of outer tooth to be vertically fixed on the mounting base (1), double lead-screw (8) with inside and outside tooth and center leading screw (9) kinematic pair that partners, free gear (7) is fixed together by holding screw (11) and the double lead-screw (8) with inside and outside tooth, the double lead-screw (8) that only has the screw set (10) of interior tooth and have the inside and outside tooth kinematic pair that partners; The Antenna Type guidepost is comprised of axis calibration (13), the first sleeve (14) and the second sleeve (15), wherein, the first sleeve (14) is vertically mounted on the mounting base (1), the second sleeve (15) is nested in the first sleeve (14), axis calibration (13) is nested in the second sleeve (15), and adopts hexagonal bar iron to be connected with workplatform (3);
The ratio span of described mechanical platform oneself height h and adjustable height L is 1.2≤L/h≤2;
Described double lead-screw (8), center leading screw (9), screw set (10) with inside and outside tooth forms three-level lead screw, the little 30～70mm of Length Ratio mechanical platform oneself height of leading screws at different levels;
Described mechanical platform transmitting ratio is 1: 4～1: 16, and lifting platform speed is 0.05～2mm/r.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910259304 CN101734575B (en) | 2009-12-17 | 2009-12-17 | Three-level lead screw linkage mechanical platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910259304 CN101734575B (en) | 2009-12-17 | 2009-12-17 | Three-level lead screw linkage mechanical platform |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101734575A CN101734575A (en) | 2010-06-16 |
| CN101734575B true CN101734575B (en) | 2013-04-24 |
Family
ID=42458700
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910259304 Active CN101734575B (en) | 2009-12-17 | 2009-12-17 | Three-level lead screw linkage mechanical platform |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101734575B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102207180B (en) * | 2010-10-11 | 2013-04-03 | 刘仙昌 | Sectioned lead screw type lifting device |
| CN103390789B (en) * | 2013-07-08 | 2015-07-15 | 电联工程技术股份有限公司 | Rolling guiding and adjusting devices for lifting rod |
| CN104495688B (en) * | 2014-12-26 | 2018-01-09 | 大连理工大学 | Caravan automatic rising-sinking platform |
| CN108685691B (en) * | 2017-04-11 | 2020-10-16 | 杭州海善制药设备股份有限公司 | Double-screw rod lifting and extruding structure |
| CN107215811B (en) * | 2017-06-15 | 2018-11-09 | 乔文兴 | A kind of lifting gear for Medical Devices |
| CN110421540B (en) * | 2019-09-06 | 2024-06-28 | 昆山晟丰精密机械有限公司 | Cylinder stepping feeding lifting temporary storage machine |
| CN111591921A (en) * | 2020-05-26 | 2020-08-28 | 佛山市晗宇科技有限公司 | Double-ball screw lifting mechanism |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1135294A (en) * | 1997-07-16 | 1999-02-09 | Kensuke Otsubo | Manual operation type lightweight elevator |
| CN2755065Y (en) * | 2004-11-10 | 2006-02-01 | 中国科学院西安光学精密机械研究所 | Lifting device |
| CN2876043Y (en) * | 2005-12-30 | 2007-03-07 | 吉林大学 | Mechanical type lifter |
| CN101723281B (en) * | 2009-12-17 | 2011-10-05 | 中国航天科技集团公司第五研究院第五一○研究所 | Mechanical platform for three-level screw rod linkage |
-
2009
- 2009-12-17 CN CN 200910259304 patent/CN101734575B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN101734575A (en) | 2010-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101734575B (en) | Three-level lead screw linkage mechanical platform | |
| CN206356746U (en) | A kind of hoistable platform | |
| CN205500674U (en) | Two forks are directly elected and are gone up quick -witted synchronous elevation structure of material | |
| CN206029856U (en) | Lifting device for manipulator | |
| CN101723281B (en) | Mechanical platform for three-level screw rod linkage | |
| CN212024662U (en) | Reciprocating device lifting mechanism based on crank rocker | |
| CN111590329B (en) | Multifunctional composite machine tool | |
| CN201427361Y (en) | Rising frame saw | |
| CN111142568A (en) | Object position adjusting device | |
| CN115781314A (en) | Overhead gearbox ram structure of gantry machining center | |
| CN216158747U (en) | Portable X-ray flaw detector | |
| CN102343729B (en) | A kind of omnipotent wide format printer controls the shifter of jacking system | |
| CN111086964B (en) | Object position adjusting method | |
| CN114560418A (en) | Four-section lifting column with three solid ball screws | |
| CN110822915B (en) | Multi-station transmission mechanism special for inner die of small and medium-sized vacuum furnace | |
| CN209682618U (en) | A kind of big plate ceramics cutting equipment | |
| CN207735852U (en) | A kind of two axis positioner of L-type | |
| CN111940593A (en) | Quick positioning and punching device for metal products | |
| CN206066452U (en) | A kind of telescoping mechanism of mechanical hand | |
| CN201376767Y (en) | Conveying device | |
| CN206335578U (en) | Cutting robot lowering or hoisting gear | |
| CN214393011U (en) | Moving platform for automatic welding device | |
| CN204453834U (en) | Stacker crane is collected in numerical control | |
| CN202922217U (en) | Servo center frame | |
| CN211614856U (en) | Horizontal displacement mechanism of reciprocating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |