CN1562725A - Scissor fork type mechanical lifting gear - Google Patents
Scissor fork type mechanical lifting gear Download PDFInfo
- Publication number
- CN1562725A CN1562725A CN 200410026066 CN200410026066A CN1562725A CN 1562725 A CN1562725 A CN 1562725A CN 200410026066 CN200410026066 CN 200410026066 CN 200410026066 A CN200410026066 A CN 200410026066A CN 1562725 A CN1562725 A CN 1562725A
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- downtake
- spring
- type mechanical
- mechanical lifting
- hinged
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- Forklifts And Lifting Vehicles (AREA)
Abstract
A shear cross type mechanical lifting apparatus for the stage or orchestra pit features that the travelling wheels are respectively installed to top end of external supporting frame and the bottom end of internal supporting frame for travelling respectively along the track under top beam and the track on base, a transverse pull structure is connected between two axles of lower travelling wheels, a large screw bolt near the driver set is supported by UCP bearing, and the energy-accumulating spring set has the spring sleeving on telescopic upper guide tube and lower guide tube.
Description
Technical field
The present invention relates to mechanical lifting gear, be specially adapted to the lifting of orchestra or stage.
Background technology
Aerial Work LT of the prior art has equipment from height, outstanding, the simple and reliable for structure characteristics of lifting travel amplification, be used on the lifting bay-lift structure of arenas lifting orchestra or elevator stage and other occasion the most fluid pressure drive devices that adopt of its type of drive more.Hydraulic-driven have bearing capacity big, be convenient to control, regulate and be easy to advantage such as overload protection.But need the long-time equipment of stopping after rising for table top,, hydraulic fluid leak occurs and phenomenon that stage is sunk because the hydraulic seal life-span is shorter.Moreover under the situation that does not allow pumping plant is isolated in the equipment fabricating yard, its noise ratio is bigger.
Aerial Work LT adopts the structure of Mechanical Driven horizontal screw bolt transmission in addition, because horizontal force is very big, when the initial angle of cutting fork and horizontal surface is 15 °, horizontal force is equivalent to nearly 4 times of vertical load power, along with reducing of angle at the beginning, horizontal force sharply increases by tangent cutve, makes its driving and drive mechanism become comparatively huge, efficient is very low, so can only be used for the little midget plant of load-carrying.
Summary of the invention
The scissor-type jacking system that the purpose of this invention is to provide a kind of new structure makes Aerial Work LT the sorrow of sinkage not occur in the long-time stop in optional position of rising, and reduces to drive and drive mechanism, reduces noise.
The present invention is a kind of scissor-type mechanical lifting gear, inner support (1) is hinged with middle bearing pin (12) with outer support (2), the upper end of inner support (1) is hinged by hinge pin (13) with the beam parts (7) of appearing on the stage, the bottom of outer support (2) and base member (3) are hinged with hinge pin (not indicating among the figure), travelling wheel (10) is equipped with down in the bottom that it is characterized in that inner support (1), on the face that gets on the right track of base member (3), roll, travelling wheel (10 ') is equipped with in the upper end of outer support (2), on the lower railway of beam parts (7) of appearing on the stage, roll, horizontal trying to stop people from fighting each other (4-7) two ends are enclosed within respectively and walk wheel shaft (a 9) side in the inner part under two, big screw rod (4-8) supports with UCP bearing (4-3) near an end of actuating unit (4-1), energy stroage spring (8-4) in the spring energy storage device (8) is sleeved on telescopic upper conduit (8-7) and the downtake (8-3), the top of spring energy storage device (8) is provided with cushion rubber (8-9), by the elongation of spring maximum functional steel rope (8-5) is housed in the last downtake, impacts in order to the restriction resilience.Upper conduit end plate (8-8) assembly welding is at an end of upper conduit (8-7), and downtake end plate (8-2) assembly welding is at an end of downtake (8-3), and last downtake bearing fit forms flexible.
The invention has the beneficial effects as follows: 1) horizontal screw bolt of helical angle reasonable in design make its efficiently transmission Aerial Work LT is stopped often in the optional position of rising do not have; 2) design and installation of spring energy storage device is suitable for the very big big countertop fixture of bearing capacity, has overcome the too big problem of horizontal force, disposes rationally and make to drive with transmission; 3) select high precision worm type of reduction gearing and the big screw rod of processing through mill of high precision for use, noise of equipment is little; 4) key position of device drives and transmission is all taked Rational structure.
Description of drawings
Fig. 1 is an overall structure scheme drawing of the present invention, and Fig. 2 is the structure diagram of drive transmission part (4), and Fig. 3 is the structure diagram of spring energy storage device (8).
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
To shown in the view, inner support (1) is hinged with middle bearing pin (12) with outer support (2) as Fig. 1 and C-C, is that double shear is pitched structure.To shown in the view, one in the outside is hinged with hinge pin (13) with appear on the stage beam parts (7) and base member (3) up and down as Fig. 1 and D-D, and travelling wheel (10 ') is equipped with in one of inboard.To shown in the view, the travelling wheel of using away wheel shaft (11) dress on the outer support (2) rolls on the lower railway of beam parts (7) of appearing on the stage as Fig. 1 and B-B.As Fig. 1 and A-A to shown in the view, inner support (1) rolls on base member (3) gets on the right track face with the travelling wheel (10) of walking wheel shaft (9) dress down, horizontal trying to stop people from fighting each other (4-7) two is enclosed within respectively and walks in the inner part one of wheel shaft under two, when drive transmission part (4) drives, make inner support (1) motion by horizontal trying to stop people from fighting each other (4-7) horizontal drive, by cutting the fork structure jack-up beam parts (7) of appearing on the stage, thereby reach the purpose of Lifting platform.
As shown in Figure 1, bay-lift is when extreme lower position, compressed spring energy storage device (8) has maximum top power to the beam of appearing on the stage, this chien shih maximum horizontal propulsive effort is significantly cut down, along with table top rises, horizontal force progressively reduces, and the top power of spring energy storage device (8) also reduces, between suitably coupling make and drive and the transmission reasonable disposition.
The biplate platform is that left-right symmetric disposes said structure in pairs.
As shown in Figure 2, actuating unit (4-1) output shaft in the drive transmission part (4) is by fast coupling (4-2) and big screw rod (4-8) binding, transfer torque and speed, this sentences UCP bearing (4-3) and supports, (4-4) be bearing, big screw rod (4-8) must leave 1 mm clearance when axially installing, prevent hypertonic stress so that distortion.Shown in Fig. 2 and partial enlarged drawing A, the axially loaded of big screw rod (4-8) is located at the other end and supports, thrust force aligning bearing (4-12) is housed in bearing seat (4-16), and semi-ring (4-13) is stuck in the groove of big screw rod (4-8) head, and keeps a grip on radially with spacer (4-14).Thrust force aligning bearing (4-12) reaches pulling force can be subjected to heavily stressed bearing seat (4-16), but it disposes automatic compensation in pairs and resets.Is equipped with nut combinations (4-6) in the middle of horizontal the trying to stop people from fighting each other (4-7), nut combinations (4-6) is to be cast by the high-strength cast steel steel, cover in the equipped tin bronze alloys of heat, in be with and the corresponding T shape screw thread of big screw rod (4-8).When table top in extreme lower position and load hour, the top power of possible spring energy storage device (8) is greater than vertical load, nut combinations this moment (4-6) will be subjected to set opposite power with conventional, so be provided with retaining cover plate (4-5), break away from the interior overcoat that prevents nut combinations (4-6).In whole equipment, the screw thread of big screw rod (4-8) and nut combinations (4-6) revolves in pairs about being.(4-9) being felt collar, (4-10) is front bearing cap, (4-11) is oil nozzle, (4-15) is rear bearing cover, (4-17) is support.
As shown in Figure 3, energy stroage spring (8-4) powerful in the spring energy storage device (8) is sleeved on telescopic upper conduit (8-7) and the downtake (8-3), by the elongation of spring maximum functional steel rope (8-5) is housed in the last downtake, and the restriction resilience is impacted.The top of spring energy storage device (8) is provided with cushion rubber (8-9), when preventing that table top from descending and its bump.Spring energy storage device (8) but extreme lower position by mechanical position limitation under the downtake load double as bay-lift.Upper conduit end plate (8-8) assembly welding is at one of upper conduit (8-7); Downtake end plate (8-2) assembly welding is at one of downtake (8-3), and last downtake bearing fit forms flexible.Spring energy storage device (8) lower set is equipped with mounting assembly (8-1), is convenient to fix on the base plate of base member (3) and can adjust squareness.
Claims (2)
1, the present invention is a kind of scissor-type mechanical lifting gear, inner support (1) is hinged with middle bearing pin (12) with outer support (2), the upper end of inner support (1) is hinged by hinge pin (13) with the beam parts (7) of appearing on the stage, the bottom of outer support (2) and base member (3) are hinged with hinge pin, travelling wheel (10) is equipped with down in the bottom that it is characterized in that inner support (1), on the face that gets on the right track of base member (3), roll, travelling wheel (10 ') is equipped with in the upper end of outer support (2), on the lower railway of beam parts (7) of appearing on the stage, roll, horizontal trying to stop people from fighting each other (4-7) two ends are enclosed within respectively and walk wheel shaft (a 9) side in the inner part under two, big screw rod (4-8) supports with UCP bearing (4-3) near an end of actuating unit (4-1), energy stroage spring (8-4) in the spring energy storage device (8) is sleeved on telescopic upper conduit (8-7) and the downtake (8-3), the top of spring energy storage device (8) is provided with cushion rubber (8-9), by the elongation of spring maximum functional steel rope (8-5) is housed in the last downtake, impacts in order to the restriction resilience.
2, a kind of scissor-type mechanical lifting gear according to claim 1, it is characterized in that the end of upper conduit end plate (8-8) assembly welding at upper conduit (8-7), downtake end plate (8-2) assembly welding is at an end of downtake (8-3), and last downtake bearing fit forms flexible.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410026066 CN1277736C (en) | 2004-04-08 | 2004-04-08 | Scissor fork type mechanical lifting gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN 200410026066 CN1277736C (en) | 2004-04-08 | 2004-04-08 | Scissor fork type mechanical lifting gear |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1562725A true CN1562725A (en) | 2005-01-12 |
CN1277736C CN1277736C (en) | 2006-10-04 |
Family
ID=34480566
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN 200410026066 Expired - Fee Related CN1277736C (en) | 2004-04-08 | 2004-04-08 | Scissor fork type mechanical lifting gear |
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CN (1) | CN1277736C (en) |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102251687A (en) * | 2011-05-09 | 2011-11-23 | 斯毕士舞台设备技术(杭州)有限公司 | Jacking-up mechanism of sleeve roller chains |
CN102689853A (en) * | 2012-05-31 | 2012-09-26 | 福州展旭电子有限公司 | Externally controllable built-in lift platform |
CN104032985A (en) * | 2014-06-26 | 2014-09-10 | 江苏恒泰泳池设备有限公司 | Swimming pool water depth adjusting device based on scissor fork mechanism |
CN104337538A (en) * | 2013-07-24 | 2015-02-11 | 上海联影医疗科技有限公司 | Retractable supporting structure and hospital bed lifting mechanism |
CN104806042A (en) * | 2015-05-06 | 2015-07-29 | 北京信息科技大学 | Multi-plate type automatic foldable stage and controlling method of multi-plate type automatic foldable stage |
CN104860228A (en) * | 2015-04-16 | 2015-08-26 | 国家电网公司 | Large-sized gantry type movable lifting machine for bell jar |
CN106930568A (en) * | 2017-03-01 | 2017-07-07 | 华东交通大学 | A kind of multi-functional truss stage and its operating method for cantata |
CN107244639A (en) * | 2017-07-20 | 2017-10-13 | 兰州理工大学 | Stage is paddled rotation and lifting combined equipment |
CN108756329A (en) * | 2018-05-17 | 2018-11-06 | 浙江工业大学 | Safety support device for movable stage |
CN109052217A (en) * | 2018-08-17 | 2018-12-21 | 北京索英电气技术有限公司 | A kind of automation lifting device |
CN112647742A (en) * | 2020-09-19 | 2021-04-13 | 泰州市银杏舞台机械工程有限公司 | Cantilever symmetry formula lift revolving stage |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102553236B (en) * | 2010-12-30 | 2013-11-06 | 深圳华强智能技术有限公司 | Drop platform device and using method thereof |
-
2004
- 2004-04-08 CN CN 200410026066 patent/CN1277736C/en not_active Expired - Fee Related
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102251687B (en) * | 2011-05-09 | 2012-09-05 | 斯毕士舞台设备技术(杭州)有限公司 | Jacking-up mechanism of sleeve roller chains |
CN102251687A (en) * | 2011-05-09 | 2011-11-23 | 斯毕士舞台设备技术(杭州)有限公司 | Jacking-up mechanism of sleeve roller chains |
CN102689853A (en) * | 2012-05-31 | 2012-09-26 | 福州展旭电子有限公司 | Externally controllable built-in lift platform |
CN102689853B (en) * | 2012-05-31 | 2015-05-20 | 福州展旭电子有限公司 | Externally controllable built-in lift platform |
CN104337538A (en) * | 2013-07-24 | 2015-02-11 | 上海联影医疗科技有限公司 | Retractable supporting structure and hospital bed lifting mechanism |
CN104032985B (en) * | 2014-06-26 | 2016-05-18 | 江苏恒泰泳池设备有限公司 | Swimming pool depth of water adjusting device based on scissors mechanism |
CN104032985A (en) * | 2014-06-26 | 2014-09-10 | 江苏恒泰泳池设备有限公司 | Swimming pool water depth adjusting device based on scissor fork mechanism |
CN104860228A (en) * | 2015-04-16 | 2015-08-26 | 国家电网公司 | Large-sized gantry type movable lifting machine for bell jar |
CN104806042A (en) * | 2015-05-06 | 2015-07-29 | 北京信息科技大学 | Multi-plate type automatic foldable stage and controlling method of multi-plate type automatic foldable stage |
CN106930568A (en) * | 2017-03-01 | 2017-07-07 | 华东交通大学 | A kind of multi-functional truss stage and its operating method for cantata |
CN107244639A (en) * | 2017-07-20 | 2017-10-13 | 兰州理工大学 | Stage is paddled rotation and lifting combined equipment |
CN108756329A (en) * | 2018-05-17 | 2018-11-06 | 浙江工业大学 | Safety support device for movable stage |
CN108756329B (en) * | 2018-05-17 | 2019-12-03 | 浙江工业大学 | Safety support device for movable stage |
CN109052217A (en) * | 2018-08-17 | 2018-12-21 | 北京索英电气技术有限公司 | A kind of automation lifting device |
CN112647742A (en) * | 2020-09-19 | 2021-04-13 | 泰州市银杏舞台机械工程有限公司 | Cantilever symmetry formula lift revolving stage |
Also Published As
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CN1277736C (en) | 2006-10-04 |
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