CN202808266U - Electric lifting table with spring balanced design - Google Patents
Electric lifting table with spring balanced design Download PDFInfo
- Publication number
- CN202808266U CN202808266U CN 201220313494 CN201220313494U CN202808266U CN 202808266 U CN202808266 U CN 202808266U CN 201220313494 CN201220313494 CN 201220313494 CN 201220313494 U CN201220313494 U CN 201220313494U CN 202808266 U CN202808266 U CN 202808266U
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- yoke
- raising middle
- middle flask
- transmission mechanism
- case
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Abstract
The utility model relates to an electric lifting table with a spring balanced design. The lifting table comprises a base, an upper table upper, scissors fork mechanisms, a screw rod transmission mechanism and a matched electric control system, wherein the screw rod transmission mechanism is arranged between the two sets of scissors fork mechanisms; and the screw rod transmission mechanism comprises a motor, a gearbox, a middle box, a push box, a screw rod, travel guide bars and a brake hydraulic cylinder. The lifting table is characterized in that balance springs both in a compressed state are arranged on the travel guide bars. According to the utility model, a screw rod transmission mechanism of a conventional electric lifting table is reasonably improved; weight balance is realized by arranging the balance springs both in the compressed state on the travel guide bars; in the lifting table rising process, the balance springs assist the motor to lift heavy objects; and in the lifting table descending process, the balance springs convert the gravitational potential into elastic potential energy to store so as to achieve the purpose of reducing the motor power and improving the overall efficiency.
Description
Technical field
The utility model relates to a kind of improvement of electric lifting platform, specifically a kind of electric lifting platform with spring balancing design.
Background technology
In the car assembling travel line, often need to use jacking equipment, be used for lifting car body or slide plate carrier, realize that workpiece is in the switching of differing heights.Electric lifting platform (also have and be called electric scissor bay-lift, Cam-type electric bay-lift) is a kind of jacking equipment commonly used.Electric lifting 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 lifting and the decline of weight by extruding epirelief wheel plate and lower lobe plate.But in actual use, usually occur great start-up current during the lifting weight, and when the decline state, motor is in again generating state, the frequency converter end that connects at motor needs supporting high-power braking resistor.The whole decorum has been wasted the energy greatly, and the bay-lift system need to be equipped with heavy-duty motor, big-power transducer, high-power braking resistor simultaneously, has seriously reduced whole 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 purpose of this utility model is to overcome the deficiencies in the prior art, lead screw transmission mechanism to existing electric lifting platform is carried out rational modification, thereby provide a kind of electric lifting platform with spring balancing design, it can rely on balance spring to realize counterweight balance, 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.
The technical scheme that provides according to the utility model: have the electric lifting platform of spring balancing design, 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 the electric lifting 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 by 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 by support wheel, and the following position, hinged place of cutting yoke outward is installed with lower lobe plate; Described 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 described case that pushes away is arranged on raising middle flask the place ahead, pushes away case and parallels with raising middle flask, and described screw mandrel passes forward and pushes away case, the nut seat that consists of the screw thread transmission with screw mandrel is installed pushing away case; The described 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 lower lobe plate of yoke; The both sides of described 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 consist of bearing fit; Described braking liquid cylinder pressure is installed on the raising middle flask, and the piston rod of braking liquid cylinder pressure is connected to forward and pushes away on the case; It is characterized in that: on the described stroke guide rod balance spring that is compressive state is housed.
As further improvement of the utility model, a rotating rear rotation seat is installed on the described raising middle flask, described motor is connected with change speed gear box and is installed on the rear rotation seat; The described middle part that pushes away case is equipped with a rotating front rotation seat, and described nut seat is installed on the front rotation seat.
The utility model compared with prior art, advantage is: the utility model carries out rational modification to the lead screw transmission mechanism of existing electric lifting platform, realize counterweight balance by 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 the utility model electric lifting platform.
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 lifting platform.
Fig. 5 is the view when bearing non-axial force of the lead screw transmission mechanism in the electric lifting 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-lower 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-front rotation seat, 18-roller, 19-rear rotation seat outward.
The specific embodiment
The utility model is described in further detail below in conjunction with concrete drawings and Examples.
Such as Fig. 1 ~ shown in Figure 3, electric lifting platform described in the utility model mainly is comprised of base 1, upper table surface 6, scissors mechanism, lead screw transmission mechanism and supporting electric-control system; Described scissors mechanism has two groups, and two groups of scissors mechanisms are symmetricly set on the electric lifting 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 by 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 by support wheel, and the following position, hinged place of cutting yoke 5 outward is installed with lower lobe plate 9; Described 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, push away case 13, screw mandrel 15, stroke guide rod 12 and braking liquid cylinder pressure 10 and form, raising middle flask 11 two ends are connected with bearing pin 7 in two groups of scissors mechanisms, a rotating rear rotation seat 19 is installed on the described raising middle flask 11, described motor 3 is connected with change speed gear box 4 and is installed on the rear rotation seat 19, the coaxial screw mandrel 15 that is connected with on the output shaft of change speed gear box 4; The described case 13 that pushes away is arranged on raising middle flask 11 the place aheads, pushing away case 13 parallels with raising middle flask 11, the described middle part that pushes away case 13 is equipped with a rotating front rotation seat 17, at front rotation seat 17 nut seat 16 that consists of the screw thread transmission with screw mandrel 15 is installed, and described screw mandrel 15 passes forward nut seat 16.Described case 13 two ends that push away are equipped with roller 18, this roller 18 the interior epirelief wheel plate 8 of cutting yoke 2 and outside cut between the lower lobe plate 9 of yoke 5; The both sides of described 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 pass push away case 13 and with push away case 13 and consist of bearing fits, the balance spring 14 that is compressive state is housed on the stroke guide rod 12, balance spring 14 keeps by nut; Described 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 to forward and pushes away on the case 13; Described 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 to forward and pushes away on the case 13.
During specific works, motor 3 in the lead screw transmission mechanism drives screw mandrel 15 by 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 push away case 13 and are synchronized with the movement, push away epirelief wheel plate 8 and lower lobe plate 9 in the roller 18 compressing scissors mechanisms at case 13 two ends, so that the opening angle of scissors mechanism changes; Push away case 13 under screw mandrel 15 effect during near raising middle flask 11, bay-lift rises, and pushes away case 13 under the effect of screw mandrel 15 during away from raising middle flask 11, and bay-lift descends.
In above-mentioned working process, the effect of described 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 as follows:
When bay-lift is in low level, push away case 13 and be in position away from raising middle flask 11, balance spring 14 is in compressive state.When bay-lift rises, push away case 13 and under the lead screw transmission mechanism effect, 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, push away the position that case 13 is in close raising middle flask 11, balance spring 14 is in relaxation state.When bay-lift descends, push away case 13 and move away from raising middle flask 11 at the bay-lift Action of Gravity Field, this moment, braking force was provided jointly by motor 3 and balance spring 14.
In addition, the screw mandrel in the utility model also has antitorque protection design.Under the normal condition, as shown in Figure 4, raising middle flask in the transmission device 11 and push away case 13 and parallel, screw mandrel 15 only is subjected to axial force.
But when there is error in the manufacturing assembling, screw mandrel 15 can be subject to non-axial force when operation, in system in the past, screw mandrel 15 is completely fixed with respect to raising middle flask 11, when in case it is subject to non-axial force, screw mandrel 15 will produce slight bending shape, can greatly accelerate damage even the fracture of screw mandrel 15 under this operating mode.In addition, bay-lift generally is furnished with dropproof checking system, 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 and push away case 13 and will be in non-parallel state (as shown in Figure 5), this moment, screw mandrel 15 was subject to non-axial applied force.
Because the screw mandrel 15 in the utility model is mounted on front rotation seat 17 and the rear rotation seat 19; under non-axial applied force; screw mandrel 15 can be followed front rotation seat 17 and 19 rotations of rear rotation seat; reach self adaptation; this moment, non-axial force was born by two stroke guide rods 12 fully, and screw mandrel 15 only is subjected to a pair of balancing force effect at front rotation seat 17 and rear rotation seat 19 places, was subject to axial pulling force namely merely; phenomenon of rupture can not appear, the antitorque protection design of Here it is screw mandrel 15.
Claims (2)
1. have the electric lifting platform of spring balancing design, 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 the electric lifting 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) by 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) by support wheel, and the following position, hinged place of cutting yoke (5) outward is installed with lower lobe plate (9); Described 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), pushes away 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 described case (13) that pushes away is arranged on raising middle flask (11) the place ahead, pushes away case (13) and parallels with raising middle flask (11), and described screw mandrel (15) passes forward and pushes away case (13), the nut seat (16) that consists of the screw thread transmission with screw mandrel (15) is installed pushing away case (13); Described case (13) two ends that push away are equipped with roller (18), and this roller (18) is positioned between the epirelief wheel plate (8) of cutting yoke (2) and the lower lobe plate (9) of the cutting yoke (5) outward; The both sides of described 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), stroke guide rod (12) pass push away case (13) and with push away case (13) and consist of bearing fit; Described 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 to forward and pushes away on the case (13); It is characterized in that: the balance spring (14) that is compressive state is housed on the described stroke guide rod (12).
2. the electric lifting platform with spring balancing design as claimed in claim 1, it is characterized in that: a rotating rear rotation seat (19) is installed on the described raising middle flask (11), and described motor (3) is connected with change speed gear box (4) and is installed on the rear rotation seat (19); The described middle part that pushes away case (13) is equipped with a rotating front rotation seat (17), and described nut seat (16) is installed on the front rotation seat (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220313494 CN202808266U (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 |
|---|---|---|---|
| CN 201220313494 CN202808266U (en) | 2012-06-29 | 2012-06-29 | Electric lifting table with spring balanced design |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202808266U true CN202808266U (en) | 2013-03-20 |
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ID=47867187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220313494 Expired - Fee Related CN202808266U (en) | 2012-06-29 | 2012-06-29 | Electric lifting table with spring balanced design |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202808266U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765677A (en) * | 2012-06-29 | 2012-11-07 | 江苏天奇物流系统工程股份有限公司 | Electric lifting table with spring balanced design |
| CN104016265A (en) * | 2014-06-19 | 2014-09-03 | 北京石油化工学院 | Small size electric control shearing type fork lifting device |
| CN107795831A (en) * | 2017-12-04 | 2018-03-13 | 建浩支架（昆山）有限公司 | Hanging hook assembly |
| CN108557692A (en) * | 2018-07-24 | 2018-09-21 | 济南奥图自动化股份有限公司 | A kind of two level screw rod lifting platform vehicle |
| US11019920B2 (en) | 2016-09-23 | 2021-06-01 | Varidesk, Llc | Electrically-lifted computer desk and office desk thereof |
-
2012
- 2012-06-29 CN CN 201220313494 patent/CN202808266U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102765677A (en) * | 2012-06-29 | 2012-11-07 | 江苏天奇物流系统工程股份有限公司 | Electric lifting table with spring balanced design |
| CN102765677B (en) * | 2012-06-29 | 2014-11-26 | 天奇自动化工程股份有限公司 | Electric lifting table with spring balanced design |
| CN104016265A (en) * | 2014-06-19 | 2014-09-03 | 北京石油化工学院 | Small size electric control shearing type fork lifting device |
| US11019920B2 (en) | 2016-09-23 | 2021-06-01 | Varidesk, Llc | Electrically-lifted computer desk and office desk thereof |
| CN107795831A (en) * | 2017-12-04 | 2018-03-13 | 建浩支架（昆山）有限公司 | Hanging hook assembly |
| CN108557692A (en) * | 2018-07-24 | 2018-09-21 | 济南奥图自动化股份有限公司 | A kind of two level screw rod lifting platform vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: MIRACLE AUTOMATION ENGINEERING CO., LTD. Free format text: FORMER NAME: TIANQI MATERIAL FLOW SYSTEM ENGINEERING CO. LTD., JIANGSU |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 214187 Jiangsu Province, Wuxi city Huishan District Luoshe town Lotus Luo Road No. 288 Patentee after: Miracle Automation Engineering Co., Ltd. Address before: 214187 Jiangsu Province, Wuxi city Huishan District Luoshe town Lotus Luo Road No. 288 Patentee before: Tianqi Material Flow System Engineering Co., Ltd., Jiangsu |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130320 Termination date: 20150629 |
|
| EXPY | Termination of patent right or utility model |