CN102765677A - Electric lifting table with spring balanced design - Google Patents
Electric lifting table with spring balanced design Download PDFInfo
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- CN102765677A CN102765677A CN2012102241446A CN201210224144A CN102765677A CN 102765677 A CN102765677 A CN 102765677A CN 2012102241446 A CN2012102241446 A CN 2012102241446A CN 201210224144 A CN201210224144 A CN 201210224144A CN 102765677 A CN102765677 A CN 102765677A
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- case
- yoke
- raising middle
- middle flask
- screw mandrel
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Abstract
The invention relates to an electric lifting table with a spring balanced design. The electric lifting table comprises a base, an upper tabletop, scissor mechanisms, a lead screw transmission mechanism and an assorted electronic control system, and the lead screw transmission mechanism is arranged between the two scissor mechanisms and comprises a motor, a gearbox, a middle box, a push box, a lead screw, a stroke guide rod and a brake hydraulic cylinder. The electric lifting table is characterized in that a compressed balance spring is arranged on the stroke guide rod. A lead screw transmission mechanism of an existing electric lifting table is reasonably modified, counterweight balance is realized by the compressed balance spring arranged on the stroke guide rod, the balance spring assists the motor to lift up a heavy object when the lifting table ascends, and gravitational potential energy is converted into elastic potential energy to be stored by the balance spring when the lifting table descends, so that purposes of reducing power of the motor and improving integral efficiency are realized.
Description
Technical field
The present invention relates to a kind of improvement of electric up-down platform, specifically is a kind of spring balancing design-calculated electric up-down platform that has.
Background technology
In the car assembling travel line, often need use jacking equipment, be used for car body or slide plate carrier, realize the switching of workpiece at differing heights.Electric up-down platform (also have and be called electric scissor bay-lift, cam-type electric up-down platform) is a kind of jacking equipment commonly used.The electric up-down platform adopts lead screw transmission mechanism usually, and the motor-driven screw mandrel in the lead screw transmission mechanism drives the nut seat transmission by leading screw, realizes the lifting and the decline of weight through extruding epirelief wheel plate and following lobe plate.But in actual use, usually occur great start-up current during the lifting weight, and when the decline state, motor is in generating state again, needs supporting high-power braking resistor at motor bonded assembly frequency converter end.The whole decorum has been wasted the energy greatly, and the bay-lift system need be equipped with heavy-duty motor, big-power transducer, high-power braking resistor simultaneously, has seriously reduced total system efficient.And the Weighting system that often adopts in the general jacking system can't be realized because of the reasons in structure of bay-lift again.
Summary of the invention
The objective of the invention is to overcome the deficiency that exists in the prior art, the lead screw transmission mechanism of existing electric up-down platform is rationally improved, thereby a kind of spring balancing design-calculated electric up-down platform that has is provided; It can rely on balance spring to realize counterweight balance, in the bay-lift uphill process, and balance spring helper motor lifting weight; In bay-lift decline process; Balance spring is converted into elastic potential energy to gravitional force and stores, and realizes reducing power of motor, improves the purpose of whole efficiency.
According to technical scheme provided by the invention: have spring balancing design-calculated electric up-down platform, comprise base, upper table surface, scissors mechanism, lead screw transmission mechanism and supporting electric-control system; Scissors mechanism has two groups, and two groups of scissors mechanisms are symmetricly set on electric up-down platform both sides; Every group of scissors mechanism all cut yoke outward and formed by cutting yoke and one in one, in cut yoke and cut yoke outward and utilize bearing pin to be hinged at the middle part; In cut the yoke lower end and base hinged, in cut yoke upper end and be supported on the upper table surface through support wheel, in cut yoke the hinged place with the upper part epirelief wheel plate is installed; It is hinged with upper table surface to cut the yoke upper end outward, cuts the yoke lower end outward and is supported on the base through support wheel, and the following position, hinged place of cutting yoke outward is installed with down lobe plate; Said lead screw transmission mechanism is arranged between two groups of scissors mechanisms; Lead screw transmission mechanism comprises motor, change speed gear box, raising middle flask, pushes away case, screw mandrel, stroke guide rod and braking liquid cylinder pressure; The raising middle flask two ends are connected with bearing pin in two groups of scissors mechanisms; Motor is connected with change speed gear box and is installed on the raising middle flask, the coaxial screw mandrel that is connected with on the output shaft of change speed gear box; The said case that pushes away is arranged on raising middle flask the place ahead, pushes away case and raising middle flask parallels, and said screw mandrel passes forward and pushes away case, the nut seat that constitutes the screw thread transmission with screw mandrel is installed pushing away on the case; The said case two ends that push away are equipped with roller, this roller the interior epirelief wheel plate of cutting yoke and outside cut between the following lobe plate of yoke; The both sides of said screw mandrel are provided with two stroke guide rods, and stroke guide rod one end is fixed on the raising middle flask, the stroke guide rod pass push away case and with push away case and constitute bearing fit; Said braking liquid cylinder pressure is installed on the raising middle flask, and the piston rod of braking liquid cylinder pressure is connected forward and pushes away on the case; It is characterized in that: on the said stroke guide rod balance spring that is compressive state is housed.
As further improvement of the present invention, a rotating back rotation seat is installed on the said raising middle flask, said motor is connected with change speed gear box and is installed on the rotation seat of back; The said middle part that pushes away case is equipped with a rotating preceding rotation seat, and said nut seat is installed on the preceding rotation seat.
The present invention compared with prior art, advantage is: the present invention rationally improves the lead screw transmission mechanism of existing electric up-down platform, realizes counterweight balance through the balance spring that is compressive state that is equipped with on the stroke guide rod; In the bay-lift uphill process; Balance spring helper motor lifting weight, in bay-lift decline process, balance spring is converted into elastic potential energy to gravitional force and stores; Realize reducing power of motor, improve the purpose of whole efficiency.
Description of drawings
Fig. 1 is the structural front view of electric up-down platform of the present invention.
Fig. 2 is that A-A among Fig. 1 is to cutaway view.
Fig. 3 is the left view of Fig. 1.
Fig. 4 is the lead screw transmission mechanism normal working scheme drawing in the electric up-down platform.
View when Fig. 5 bears non-axial force for the lead screw transmission mechanism in the electric up-down platform.
Description of reference numerals: 1-base, 2-in cut yoke, 3-motor, 4-change speed gear box, 5-cut yoke, 6-upper table surface, 7-bearing pin, 8-epirelief wheel plate, 9-following lobe plate, 10-braking liquid cylinder pressure, 11-raising middle flask, 12-stroke guide rod, 13-push away case, 14-balance spring, 15-screw mandrel, 16-nut seat, 17-preceding rotation seat, 18-roller, 19-back rotation seat outward.
The specific embodiment
Below in conjunction with concrete accompanying drawing and embodiment the present invention is described further.
Like Fig. 1 ~ shown in Figure 3, electric up-down platform of the present invention mainly is made up of base 1, upper table surface 6, scissors mechanism, lead screw transmission mechanism and supporting electric-control system; Said scissors mechanism has two groups, and two groups of scissors mechanisms are symmetricly set on electric up-down platform both sides; Every group of scissors mechanism all cut yoke 5 outward and formed by cutting yoke 2 and one in one, in cut yoke 2 and cut yoke 5 outward and utilize bearing pin 7 to be hinged at the middle part; In cut yoke 2 lower ends and base 1 hinged, in cut yoke 2 upper ends and be supported on the upper table surface 6 through support wheel, in cut yoke 2 the hinged place with the upper part epirelief wheel plate 8 is installed; It is hinged to cut yoke 5 upper ends and upper table surface 6 outward, cuts yoke 5 lower ends outward and is supported on the base 1 through support wheel, and the following position, hinged place of cutting yoke 5 outward is installed with down lobe plate 9; Said lead screw transmission mechanism is arranged between two groups of scissors mechanisms; Lead screw transmission mechanism mainly by motor 3, change speed gear box 4, raising middle flask 11, draw case 13, screw mandrel 15, stroke guide rod 12 and braking liquid cylinder pressure 10 to form; Raising middle flask 11 two ends are connected with bearing pin 7 in two groups of scissors mechanisms; A rotating back rotation seat 19 is installed on the said raising middle flask 11, and said motor 3 is connected with change speed gear box 4 and is installed on the rotation seat 19 of back the coaxial screw mandrel 15 that is connected with on the output shaft of change speed gear box 4; The said case 13 that draws is arranged on raising middle flask 11 the place aheads; Draw case 13 and raising middle flask 11 to parallel; The said middle part of case 13 of drawing is equipped with a rotating preceding rotation seat 17, and the nut seat 16 that constitutes the screw thread transmissions with screw mandrel 15 is installed on preceding rotation seat 17, and said screw mandrel 15 passes nut seat 16 forward.Said case 13 two ends of drawing are equipped with roller 18, this roller 18 the interior epirelief wheel plate 8 of cutting yoke 2 and outside cut between the following lobe plate 9 of yoke 5; The both sides of said screw mandrel 15 are provided with two stroke guide rods 12; Stroke guide rod 12 1 ends are fixed on the raising middle flask 11; Stroke guide rod 12 passes and draws case 13 and constitute bearing fit with drawing case 13, and the balance spring 14 that is compressive state is housed on the stroke guide rod 12, and balance spring 14 keeps through nut; Said braking liquid cylinder pressure 10 is installed on the raising middle flask 11, and the piston rod of braking liquid cylinder pressure 10 is connected forward and draws on the case 13; Said braking liquid cylinder pressure 10 is installed on the raising middle flask 11, and the piston rod of braking liquid cylinder pressure 10 is connected forward and draws on the case 13.
During concrete work; Motor 3 in the lead screw transmission mechanism drives screw mandrel 15 through change speed gear box 4 and rotates; Screw mandrel 15 rotates the nut seat 16 that orders about on it along screw mandrel 15 axial motions; Nut seat 16 drives and draws case 13 to be synchronized with the movement, and draws the roller 18 at case 13 two ends to oppress epirelief wheel plate 8 and following lobe plate 9 in the scissors mechanisms, makes the opening angle of scissors mechanism change; Draw case 13 in screw mandrel 15 effect during down near raising middle flask 11, bay-lift rises, and draws case 13 under the effect of screw mandrel 15 during away from raising middle flask 11, bay-lift decline.
In above-mentioned working process, the effect of said balance spring 14 is: the one, and in the bay-lift uphill process, balance spring 14 helper motors 3 lifting weights; The 2nd, in bay-lift decline process, balance spring 14 saves as elastic potential energy to gravitional force, realizes reducing motor 3 power, improves the purpose of whole efficiency.Concrete course of action is following:
When bay-lift is in low level, draw case 13 to be in position away from raising middle flask 11, balance spring 14 is in compressive state.When bay-lift rises, draw case 13 under the lead screw transmission mechanism effect, to move toward raising middle flask 11, drive bay-lift and rise, this moment, balance spring 14 provided thrust for bay-lift.
When bay-lift is in a high position, draw case 13 to be in position near raising middle flask 11, balance spring 14 is in relaxation state.When bay-lift descends, draw case 13 to move away from raising middle flask 11 in the bay-lift action of gravity, this moment, braking force was provided by motor 3 and balance spring 14 jointly.
In addition, the screw mandrel among the present invention also has antitorque protection design.Under the normal condition, as shown in Figure 4, raising middle flask in the transmission device 11 with draw case 13 to parallel, screw mandrel 15 only receives axial force.
But when there is error in the manufacturing assembling; Screw mandrel 15 can receive non-axial force when operation; In system in the past, screw mandrel 15 is completely fixed with respect to raising middle flask 11, in case it is when receiving non-axial force; Screw mandrel 15 will produce slight bending shape, under this operating mode, can accelerate the damage even the fracture of screw mandrel 15 greatly.In addition; Bay-lift generally is furnished with dropproof checking system, and when the bay-lift fallen accident occurring, braking liquid cylinder pressure 10 can be locked; Because braking liquid cylinder pressure 10 is in screw mandrel 15 1 sides; In case braking liquid cylinder pressure 10 is locked, raising middle flask 11 with draw case 13 will be in non-parallel state (as shown in Figure 5), this moment, screw mandrel 15 received the non-axial force effect.
Because before the screw mandrel 15 among the present invention is mounted on rotation seat 17 and the back rotation seat 19, under the non-axial force effect, rotation seat 17 rotated with back rotation seat 19 before screw mandrel 15 can be followed; Reach self adaptation; This moment, non-axial force was born by two stroke guide rods 12 fully, and screw mandrel 15 only receives the effect of pair of balanced power at preceding rotation seat 17 with rotation seat 19 places, back, promptly simple received axial pulling force; Phenomenon of rupture can not appear, the antitorque protection design of Here it is screw mandrel 15.
Claims (2)
1. have spring balancing design-calculated electric up-down platform, comprise base (1), upper table surface (6), scissors mechanism, lead screw transmission mechanism and supporting electric-control system; Scissors mechanism has two groups, and two groups of scissors mechanisms are symmetricly set on electric up-down platform both sides; Every group of scissors mechanism all cut yoke (5) outward and formed by cutting yoke (2) and one in one, in cut yoke (2) and cut yoke (5) outward and utilize bearing pin (7) to be hinged at the middle part; In cut yoke (2) lower end and base (1) is hinged, in cut yoke (2) upper end and be supported on the upper table surface (6) through support wheel, in cut yoke (2) the hinged place with the upper part epirelief wheel plate (8) is installed; It is hinged with upper table surface (6) to cut yoke (5) upper end outward, cuts yoke (5) lower end outward and is supported on the base (1) through support wheel, and the following position, hinged place of cutting yoke (5) outward is installed with down lobe plate (9); Said lead screw transmission mechanism is arranged between two groups of scissors mechanisms; Lead screw transmission mechanism comprises motor (3), change speed gear box (4), raising middle flask (11), draws case (13), screw mandrel (15), stroke guide rod (12) and braking liquid cylinder pressure (10); Raising middle flask (11) two ends are connected with bearing pin (7) in two groups of scissors mechanisms; Motor (3) is connected with change speed gear box (4) and is installed on the raising middle flask (11), the coaxial screw mandrel (15) that is connected with on the output shaft of change speed gear box (4); The said case (13) that draws is arranged on raising middle flask (11) the place ahead, draws case (13) and raising middle flask (11) to parallel, and said screw mandrel (15) passes forward and draws case (13), is drawing the nut seat (16) that is equipped with on the case (13) with the transmission of screw mandrel (15) formation screw thread; Said case (13) two ends of drawing are equipped with roller (18), and this roller (18) is positioned between the epirelief wheel plate (8) of cutting yoke (2) and the following lobe plate (9) of the cutting yoke (5) outward; The both sides of said screw mandrel (15) are provided with two stroke guide rods (12), and stroke guide rod (12) one ends are fixed on the raising middle flask (11), and stroke guide rod (12) passes and draws case (13) and constitute bearing fit with drawing case (13); Said braking liquid cylinder pressure (10) is installed on the raising middle flask (11), and the piston rod of braking liquid cylinder pressure (10) is connected forward and draws on the case (13); It is characterized in that: the balance spring (14) that is compressive state is housed on the said stroke guide rod (12).
2. as claimed in claim 1 have a spring balancing design-calculated electric up-down platform; It is characterized in that: a rotating back rotation seat (19) is installed on the said raising middle flask (11), and said motor (3) is connected with change speed gear box (4) and is installed on the back rotation seat (19); The said middle part of case (13) of drawing is equipped with a rotating preceding rotation seat (17), and said nut seat (16) is installed on the preceding rotation seat (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224144.6A CN102765677B (en) | 2012-06-29 | 2012-06-29 | Electric lifting table with spring balanced design |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210224144.6A CN102765677B (en) | 2012-06-29 | 2012-06-29 | Electric lifting table with spring balanced design |
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| Publication Number | Publication Date |
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| CN102765677A true CN102765677A (en) | 2012-11-07 |
| CN102765677B CN102765677B (en) | 2014-11-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210224144.6A Active CN102765677B (en) | 2012-06-29 | 2012-06-29 | Electric lifting table with spring balanced design |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101826A (en) * | 2012-11-12 | 2013-05-15 | 无锡市洪成造纸机械有限公司 | Motor swing-type drive lead screw structure |
| CN103693583A (en) * | 2014-01-09 | 2014-04-02 | 北京微纳精密机械有限公司 | Lifting mechanism for feeding in vertical direction |
| CN103848256A (en) * | 2012-11-30 | 2014-06-11 | 山东新北洋信息技术股份有限公司 | Bill pressing mechanism and storage box with same |
| CN104671144A (en) * | 2013-12-02 | 2015-06-03 | 湖北福田液压气动股份有限公司 | Motor-driven lifting platform installed on one side of standard rocker machine tool |
| CN107352084A (en) * | 2017-07-27 | 2017-11-17 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of high-precision conveying mechanism and its synchronization conveying device |
| CN107398635A (en) * | 2017-08-03 | 2017-11-28 | 深圳市大族锐波传感科技有限公司 | A kind of arrangement for adjusting height of laser welding pipette tips |
| CN107398637A (en) * | 2017-08-01 | 2017-11-28 | 深圳市大族锐波传感科技有限公司 | A kind of coupling welding machine |
| CN107458663A (en) * | 2017-07-27 | 2017-12-12 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of high-precision conveying mechanism |
| CN108046160A (en) * | 2018-01-11 | 2018-05-18 | 昆明旭邦机械有限公司 | A kind of crossing type lifting apparatus |
| CN108412179A (en) * | 2018-02-28 | 2018-08-17 | 北京港源建筑装饰工程有限公司 | A kind of folding elevating type scaffold |
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| CN202729700U (en) * | 2012-06-29 | 2013-02-13 | 江苏天奇物流系统工程股份有限公司 | Power-driven lifting platform with lead screw torsion resistance protection function |
| CN202808266U (en) * | 2012-06-29 | 2013-03-20 | 江苏天奇物流系统工程股份有限公司 | Electric lifting table with spring balanced design |
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2012
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| CA2542817A1 (en) * | 2005-12-27 | 2007-06-27 | Hanlon Engineering, Inc. | Screw scissor lift |
| CN201002951Y (en) * | 2006-11-16 | 2008-01-09 | 机械工业第四设计研究院 | Electric shear-fork type uniform speed lifting platform |
| JP2008184267A (en) * | 2007-01-30 | 2008-08-14 | Daifuku Co Ltd | Carriage type transport device |
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| CN202729700U (en) * | 2012-06-29 | 2013-02-13 | 江苏天奇物流系统工程股份有限公司 | Power-driven lifting platform with lead screw torsion resistance protection function |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103101826A (en) * | 2012-11-12 | 2013-05-15 | 无锡市洪成造纸机械有限公司 | Motor swing-type drive lead screw structure |
| CN103848256A (en) * | 2012-11-30 | 2014-06-11 | 山东新北洋信息技术股份有限公司 | Bill pressing mechanism and storage box with same |
| CN104671144A (en) * | 2013-12-02 | 2015-06-03 | 湖北福田液压气动股份有限公司 | Motor-driven lifting platform installed on one side of standard rocker machine tool |
| CN103693583A (en) * | 2014-01-09 | 2014-04-02 | 北京微纳精密机械有限公司 | Lifting mechanism for feeding in vertical direction |
| CN107352084A (en) * | 2017-07-27 | 2017-11-17 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of high-precision conveying mechanism and its synchronization conveying device |
| CN107458663A (en) * | 2017-07-27 | 2017-12-12 | 广东水利电力职业技术学院（广东省水利电力技工学校） | A kind of high-precision conveying mechanism |
| CN107398637A (en) * | 2017-08-01 | 2017-11-28 | 深圳市大族锐波传感科技有限公司 | A kind of coupling welding machine |
| CN107398635A (en) * | 2017-08-03 | 2017-11-28 | 深圳市大族锐波传感科技有限公司 | A kind of arrangement for adjusting height of laser welding pipette tips |
| CN108046160A (en) * | 2018-01-11 | 2018-05-18 | 昆明旭邦机械有限公司 | A kind of crossing type lifting apparatus |
| CN108046160B (en) * | 2018-01-11 | 2024-03-01 | 昆明旭邦机械有限公司 | Scissor fork type lifting device |
| CN108412179A (en) * | 2018-02-28 | 2018-08-17 | 北京港源建筑装饰工程有限公司 | A kind of folding elevating type scaffold |
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| CN102765677B (en) | 2014-11-26 |
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Address after: 214187 Jiangsu Province, Wuxi city Huishan District Luoshe town Lotus Luo Road No. 288 Applicant after: Miracle Automation Engineering Co., Ltd. Address before: 214171, No. 288, Luo Lotus Road, Luo Zhen Town, Huishan District, Jiangsu, Wuxi Applicant before: Tianqi Material Flow System Engineering Co., Ltd., Jiangsu |
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