CN102659056A - Heavy-load high-accuracy lifting device with multiple sections capable of freely extending and retracting - Google Patents
Heavy-load high-accuracy lifting device with multiple sections capable of freely extending and retracting Download PDFInfo
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- CN102659056A CN102659056A CN2012101281997A CN201210128199A CN102659056A CN 102659056 A CN102659056 A CN 102659056A CN 2012101281997 A CN2012101281997 A CN 2012101281997A CN 201210128199 A CN201210128199 A CN 201210128199A CN 102659056 A CN102659056 A CN 102659056A
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Abstract
The invention relates to a heavy-load high-accuracy lifting device with multiple sections capable of freely extending and retracting, which comprises a base module, a power module, an intermediate extension and retraction module A, an intermediate extension and retraction module B, a final extension and retraction module and a lifting device platform, wherein the base module is arranged on a base. The heavy-load high-accuracy lifting device is characterized in that the power module transmits power to a central power lead screw (12) and the central power lead screw (12) helically transmits the power to the intermediate extension and retraction module A to drive the internal male-thread lead screw III (13) of the intermediate extension and retraction module A to extend and retract; the internal male-thread lead screw III (13) helically transmits the power to an internal male-thread lead screw II (14) to drive the intermediate extension and retraction module B to extend and retract; and the internal male-thread lead screw II (14) helically transmits the power to the internal male-thread lead screw I (6) of the final extension and retraction module to drive the internal male-thread lead screw I (6) to extend or retract. The heavy-load high-accuracy lifting device has the advantages that the device can be stopped and self-locked at any position under heavy-load complex working conditions, the device is convenient to install, the fitting is close, the device is modularized and the performance is reliable.
Description
Technical field
Patent of the present invention relates to a kind of constructional device of lifting table, particularly a kind of constructional device of the heavy load high precision lifting table that can more piece freely stretches.
Background technology
The keystone configuration form of more piece lifting table has scissor-type lifting platform, telescoping lifting table, aluminum alloy formula lifting table (masts type).These three kinds all have folding characteristic, and it is little to take up room after promptly shrinking.But the shortcoming of scissor-type lifting platform is not steady, mainly adopts hydraulic pressure as power, reveals easily, and system is unstable; It is actuating unit that the telescoping lifting table adopts telescopic oil cylinder, is power with hydraulic pressure, and the shortcoming of existence is the same with scissor-type lifting platform.The major defect of aluminum alloy formula lifting table is that duty ratio is less, generally about 300 kilograms.
Except above-described more piece lifting table, also there is a kind of feed screw nut's formula lifting table.For overcoming hydraulicdriven shortcoming, the structure that this type device is adopted is that nut and middle screw mandrel carry out mutual rotation set, and nut carries out mutual rotation set with the rod member of different-diameter again, is connected power intake and is driven by the reducing motor assembly by middle screw axis.The shortcoming of this constructional device is that related part is relatively many, therefore, install and transmission process in cause error inevitably, still have high lasting accuracy requirement after can't reaching stretching, extension; Structure owing to lifting table is too loose simultaneously, thereby makes the lifting table volume too too fat to move, has not only wasted material, and has increased the deadweight of lifting table; In addition, this lifting table is difficult to satisfy the load request of different operating modes, especially is difficult to satisfy the operating needs under the heavy load situation.
Summary of the invention
Shortcoming to existing various more piece lifting tables; The present invention through the unique design mode and with use modular process; When after assurance device stretches, having high stability and accuracy requirement, reduce the volume and the deadweight of lifting table, reduced production cost of products.The constructional device of this novel more piece lifting table provided by the invention in addition also can design different load-carrying capacitys according to different working conditions, and maximum load can reach tens of tons, has improved the load-carrying capacity of lifting table greatly.
For realizing above-mentioned purpose, technical scheme of the present invention is:
A kind of heavy load high precision jacking system that can more piece freely stretches; Comprise base module, power plant module, the flexible modules A of intergrade, the flexible module B of intergrade, the flexible module of final stage and jacking system platform; Base module is located on the base; The center power screw mandrel of power plant module is connected with pedestal through tapered roller bearing, is provided with power plant module, the flexible modules A of intergrade, the flexible module B of intergrade, the flexible module of final stage and jacking system platform on it successively; It is characterized in that: worm gear in the described power plant module and worm screw are with transmission of power and turn to center power screw mandrel; The helical rotation of center power screw mandrel is to the flexible modules A transferring power of intergrade, and the interior out screw rod III that drives the flexible modules A of intergrade stretches or shrinks; On the out screw rod II, drive the flexible module B of intergrade and stretch or shrink in the power spin of interior out screw rod III is transferred to; Interior out screw rod II offers power in the final stage L type on the screw mandrel I through the screw thread transmission, drives the flexible module of final stage and stretches or shrink.
Described base module is made up of pedestal and outer sleeve; Pedestal connects and in pedestal, forms the lubricating oil bath of worm and gear with attachment face; Outer sleeve 4 connects with pedestal through screw thread; Power plant module, the flexible modules A of intergrade, the flexible module B of intergrade, the flexible module of final stage, jacking system platform are all established within it the outer protection of generator and supporting role.
Described power plant module comprises drive motor, finishing bevel gear cuter, worm screw, worm gear and center power screw mandrel, tapered roller bearing; Drive motor, finishing bevel gear cuter connection worm gear and worm screw carry out transmission of power and turn to, and center power screw mandrel is located on the worm gear, realize the transmission of power to the flexible module of intergrade through helical rotation.
The flexible modules A of described intergrade forms whole by sleeve III, deep groove ball bearing (descending), saddle III and the connection of interior out screw rod III; The flexible module B of intergrade by sleeve II, deep groove ball bearing (on), saddle II and interior out screw rod II connect and form integral body; The location that the deep groove ball bearing of being installed by horizontal segment limits sleeve III, II respectively.
The flexible module of described final stage is made up of final stage internal thread rod sleeve I, interior out screw rod I and saddle I; On the out screw rod I, drive the flexible module of final stage and stretch or shrink in the interior out screw rod II of flexible module B offers power through the screw thread transmission.
Described saddle I, II, III are connected through screw thread pair with sleeve I, II, III respectively, and saddle I, II, III adopt " L " type structure.
Described jacking system platform is made up of the top of final stage internal thread rod sleeve I, sleeve II, sleeve III and outer sleeve, perhaps is threaded fixing by countersunk-heat bolt.
Out screw rod III, II are at screw mandrel outer wall thread fluting in described, and the inwall of screw mandrel is the screw thread fluting also.
Beneficial effect of the present invention: guaranteeing under heavy load and the complex working condition condition,, the stability and the transmission accuracy of the telescopic lifting of lifting table is being provided through out screw rod in the different-diameter transmission and fit system from coarse to fine successively from inside to outside; Drive outer high precision stop sleeve through deep-groove roller bearing again, make the stability of device and precision improve more, can stop and satisfying the optional position self-locking at an arbitrary position simultaneously; Easy for installation, cooperate closely compact conformation; Overall construction intensity is high; Wind loading rating is strong, modularization, dependable performance.
Description of drawings
Fig. 1 is an elevating platform assembly structural representation of the present invention.
Fig. 2 is a center of the present invention power screw structure scheme drawing.
Fig. 3 is an inside and outside screw structure scheme drawing of the present invention.
Fig. 4 is a gantry structure scheme drawing of the present invention.
Fig. 5 is the flexible module diagram of intergrade of the present invention.
The specific embodiment
Know like Fig. 1; The more piece involved in the present invention high-accuracy lifting structure device that freely stretches; Comprise base module, power plant module, the flexible modules A of intergrade, the flexible module B of intergrade, the flexible module of final stage and jacking system platform; Base module is located on the base 11, and the center power screw mandrel 12 of power plant module is connected with pedestal 11 through tapered roller bearing 8, is provided with power plant module, the flexible modules A of intergrade, the flexible module B of intergrade, the flexible module of final stage and jacking system platform on it successively.Respectively interior out screw rod I 6, II 14, III 13 from the outermost layer to the innermost layer; Wherein interior out screw rod sleeve I cooresponding with it 1, II 2, III 3 link together; Interior out screw rod III 13, II 14 are equipped with deep groove ball bearing 7 at its horizontal segment and solve bay-lift motion process middle sleeve III 3, sleeve II 2 Fu problems, other each in out screw rod same design is also arranged; Power by center power screw mandrel 12 worm drive on interior out screw rod III 13; In like manner, the power of interior out screw rod II 14 is provided by interior out screw rod III 13; And the like, out screw rod I 6 in interior out screw rod II 14 offers power through the screw thread transmission; And the power of center power screw mandrel 12 is supplied with by worm gear 17 and worm screw 18; Worm gear 17 is connected with drive motor 9 through finishing bevel gear cuter 10 with worm screw 18; Center power screw mandrel 12 is connected with pedestal 11 through tapered roller bearing 8, and pedestal 11 is connected with associated feet through lock bolt; The motor power output shaft is connected with pedestal 11 through bearing.According to above principle, its intergrade stretch modules A, B can be designed to according to actual needs A, B ... The N level, the high-accuracy jacking system thereby formation N level more piece is freely stretched.
Worm gear 17 in the power plant module and worm screw 18 are with transmission of power and turn to center power screw mandrel 12, the helical rotation of center power screw mandrel 12 again with power to the flexible modules A transmission of intergrade, the interior out screw rod III 13 that drives the flexible modules A of intergrade stretches or shrinks; On the out screw rod II 14, drive the flexible module B of intergrade and stretch or shrink in the power spin of interior out screw rod III 13 is transferred to; Interior out screw rod II 14 offers power in the final stage L type on the screw mandrel I 6 through the screw thread transmission, drives the flexible module of final stage and stretches or shrink.
Being known by Fig. 2, is center of the present invention power screw structure scheme drawing.The bottom of center power screw mandrel 12 has groove, is connected with pedestal 11 through tapered roller bearing 8, and its top is provided with screw thread, and the interior out screw rod III 13 that worm drive drive the flexible modules A of intergrade stretches or shrinks; On the out screw rod II 14, drive the flexible module B of intergrade and stretch or shrink in the power spin of interior out screw rod III 13 is transferred to; Interior out screw rod II 14 offers power in the final stage L type on the screw mandrel I 6 through the screw thread transmission, drives the flexible module of final stage and stretches or shrink.
Being known by Fig. 3, is inside and outside screw structure scheme drawing of the present invention.The bottom internal diameter of interior out screw rod I 6, III 13 and II 14 is provided with negative thread, and the outside is provided with outside thread, is used for transferring power.
Being known by Fig. 4, is saddle scheme drawing of the present invention.Saddle I 5, II 15, III 16 internal diameters are provided with negative thread, be connected through screw thread pair with sleeve I 1, II 2, III 3 respectively, and I 5, saddle II 15, III 16 adopt " L " type structures.
Being known by Fig. 5, is the flexible module diagram of intergrade of the present invention.The flexible modules A of intergrade forms whole by sleeve III 3, deep groove ball bearing 7 (descending), saddle III 16 and 13 connections of interior out screw rod III; The flexible module B of intergrade by sleeve II 2, deep groove ball bearing 7 (on), saddle II 15 and interior out screw rod II 14 connect and form integral body; The location that the deep groove ball bearing of being installed by horizontal segment 7 limits sleeve III 3, II 2 respectively.
Because patent of the present invention in the process of design and installation, has been cancelled the screw that transmission is provided, but has directly been adopted the worm drive between the screw thread pair, thereby guaranteed the transmission accuracy of bay-lift; Because patent of the present invention carried out integrated design, convenient processing and installation and can further improve the stability of bay-lift.
Working process: the interior out screw rod of innermost layer constantly rises under the transmission of middle screw mandrel during rising; After body of rod rising puts in place; The body of rod is realized the locking of inter-stage self-orientation under the effect of inhibiting device, and under the screw thread transmission outside the drive in the one-level out screw rod rise to setting height continuously in order; Drive outer high precision stop sleeve through deep-groove roller bearing simultaneously, and keep high stability; The drive motor counter-rotating drives the reverse work of each parts and realizes that decline is drawn in fast during contraction.Make bay-lift freely stretch.
The end position flexible for inter-stage all has mechanical stop limiter and electric inhibiting device, thereby guarantees the controllability and the safety of system motion to greatest extent.Aspect protection, main parts all have protective cover, and all there is surface-treated layer on some other exposed framing member surface.
Compare with the telescoping lifting table with existing scissor-type lifting platform; There is not hydraulic power system in this elevating platform assembly involved in the present invention; Thereby fundamentally stopping the risk that hydraulic oil is revealed, greatly reducing cost and difficulty that device is manufactured simultaneously again.Aspect elevating platform assembly stable, though scissor-type lifting platform and telescoping lifting table can reach than advantages of higher stability, along with continuing to increase of lifting table load, its stability also can descend thereupon; And this elevating platform assembly involved in the present invention; Owing to be to bear load and transferring power through long screw thread pair; Can select material different to satisfy the requirement of different occasions according to situation such as different working conditions and loads, stability can not occur along with load is risen and the situation of decline.Aspect the elevating platform assembly load-carrying capacity; Though scissor-type lifting platform and telescoping lifting table have the ability that can bear than heavy load; But the possibility that the big more hydraulic oil of load is revealed is also big more, and also significantly increase thereupon of manufacturing cost, and cost performance also reduces thereupon significantly; And elevating platform assembly involved in the present invention; Increasing along with load; As long as just can satisfy load request, therefore, can not increase the difficulty of the manufacturing through improving main carrying and drive disk assembly material and size; And the increase of manufacturing cost is also limited, thereby has very high cost performance.
Compare with feed screw nut's formula lifting table with aluminum alloy formula lifting table, aspect the elevating platform assembly load-carrying capacity,, be difficult to bear the situation of heavy load owing to aluminum alloy formula lifting table and material of feed screw nut's formula lifting table own and effect on structure; And this elevating platform assembly involved in the present invention has been cancelled screw, screw mandrel and interior out screw rod in the middle of can designing according to concrete operating mode, so load-carrying capacity is higher than aluminum alloy formula lifting table and feed screw nut's formula lifting table far away.Aspect the elevating platform assembly transmission accuracy; Because the parts of aluminum alloy formula lifting table and feed screw nut's formula lifting table are many; Thereby cause manufacture and the fitting process error of mean squares also bigger, and transmission process is long, is difficult to reach high-precision requirement; This elevating platform assembly involved in the present invention, because adopt connection mode nested against one another between the screw thread pair, bonded assembly is very tight; Through having adopted modular design means, at different levels high-precision in out screw rod flexible in, adopt deep groove ball bearing to drive outside high precision stop sleeve support limit at different levels; Load and high stability and accuracy requirement have been guaranteed; Reduced simultaneously the parts of device relatively,, thereby guaranteed high-precision requirement through two kinds of above methods.Aspect elevating platform assembly stability; Aluminum alloy formula lifting table and feed screw nut's formula lifting table are if satisfy the degree of stability of same performance; Just must strengthen the size of elevating platform assembly, not only waste material, and increase the deadweight of elevating platform assembly; This elevating platform assembly involved in the present invention, because reduced parts, bonded assembly is very tight, so restraint performance is also more intense, thereby guarantees to require on the basis satisfying size and deadweight, has very high precision and stability.
For preventing that when running into outage and other emergency situation still can platform be shunk and be convenient to transportation, device involved in the present invention has also designed manual-operated emergent decline function especially.For avoiding in lifting process occurring situation such as coiling, designed especially and followed wire system, simultaneously in case plant the appearance of situation here.
Claims (8)
1. heavy load high precision jacking system that can more piece freely stretches; Comprise base module, power plant module, the flexible modules A of intergrade, the flexible module B of intergrade, the flexible module of final stage and jacking system platform; Base module is located on the base; The center power screw mandrel (12) of power plant module is connected with pedestal (11) through tapered roller bearing (8), is provided with power plant module, the flexible modules A of intergrade, the flexible module B of intergrade, the flexible module of final stage and jacking system platform on it successively; It is characterized in that: worm gear in the described power plant module (17) and worm screw (18) are with transmission of power and turn to center power screw mandrel (12), again by the helical rotation of center power screw mandrel (12) successively to the flexible modules A of intergrade and B, the final stage module transferring power of stretching; Center power screw mandrel (12) helical rotation, the interior out screw rod III (13) that drives the flexible modules A of intergrade stretches or shrinks; On the out screw rod II (14), drive the flexible module B of intergrade and stretch or shrink in the power spin of interior out screw rod III (13) is transferred to; Interior out screw rod II (14) offers power on the interior out screw rod I (6) of final stage through the screw thread transmission, drives the flexible module of final stage and stretches or shrink.
2. a kind of heavy load high precision jacking system that can more piece freely stretches according to claim 1; It is characterized in that: described base module is made up of pedestal (11) and outer sleeve (4); Pedestal (11) connects and in pedestal, forms the lubricating oil bath of worm and gear with attachment face; Outer sleeve (4) is connected with pedestal (11) by screw thread, as the outer protection and the support of device.
3. a kind of heavy load high precision jacking system that can more piece freely stretches according to claim 1 is characterized in that: described power plant module comprises drive motor (9), finishing bevel gear cuter (10), worm screw (18), worm gear (17) and center power screw mandrel (12), tapered roller bearing (8); Drive motor (9), finishing bevel gear cuter (10) connection worm gear (17) and worm screw (18) carry out transmission of power and turn to, and center power screw mandrel (12) is located on the worm gear (17), realize the transmission of power to flexible modules A of intergrade or B through helical rotation.
4. a kind of heavy load high precision jacking system that can more piece freely stretches according to claim 1 is characterized in that: the flexible modules A of described intergrade is connected by sleeve III (3), deep groove ball bearing (7), saddle III (16) and interior out screw rod III (13) and forms integral body; The flexible module B of intergrade forms whole by sleeve II (2), deep groove ball bearing (7), saddle II (15) and interior out screw rod II (14) connection; The location that the deep groove ball bearing of being installed by horizontal segment (7) limits sleeve III (3), II (2) respectively.
5. a kind of heavy load high precision jacking system that can more piece freely stretches according to claim 1 is characterized in that: the flexible module of described final stage is made up of final stage internal thread rod sleeve I (1), interior out screw rod I (6) and saddle I (5); On the out screw rod I (6), drive the flexible module of final stage and stretch or shrink in the interior out screw rod II (14) of flexible module B offers power through the screw thread transmission.
6. a kind of heavy load high precision jacking system that can more piece freely stretches according to claim 1; It is characterized in that: described saddle I (5), II (15), III (16) are connected through screw thread pair with sleeve I (1), II (2), III (3) respectively, and saddle I (5), II (15), III (16) adopt " L " type structure.
7. a kind of heavy load high precision jacking system that can more piece freely stretches according to claim 1; It is characterized in that: described jacking system platform is made up of the top of final stage internal thread rod sleeve I (1), sleeve II (2), sleeve III (3) and outer sleeve (4), perhaps is threaded fixing by countersunk-heat bolt.
8. a kind of heavy load high precision jacking system that can more piece freely stretches according to claim 1 is characterized in that: out screw rod III (13), II (14) are carried out the screw thread fluting at the screw mandrel outer wall in described, and the inwall of screw mandrel also carries out the screw thread fluting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210128199.7A CN102659056B (en) | 2012-04-27 | 2012-04-27 | Heavy-load high-accuracy lifting device with multiple sections capable of freely extending and retracting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210128199.7A CN102659056B (en) | 2012-04-27 | 2012-04-27 | Heavy-load high-accuracy lifting device with multiple sections capable of freely extending and retracting |
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| Publication Number | Publication Date |
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| CN102659056A true CN102659056A (en) | 2012-09-12 |
| CN102659056B CN102659056B (en) | 2014-12-10 |
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| CN201210128199.7A Expired - Fee Related CN102659056B (en) | 2012-04-27 | 2012-04-27 | Heavy-load high-accuracy lifting device with multiple sections capable of freely extending and retracting |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103767847A (en) * | 2012-10-23 | 2014-05-07 | 谢夫勒科技股份两合公司 | Lifting system |
| CN104221837A (en) * | 2014-09-01 | 2014-12-24 | 魏延恕 | Horizontal soilless culture system with step motor to drive multi-level barrels to lift |
| CN104283498A (en) * | 2014-10-11 | 2015-01-14 | 李文杨 | Self-rotating type solar device |
| CN104320053A (en) * | 2014-11-03 | 2015-01-28 | 国网辽宁省电力有限公司抚顺供电公司 | Section lifting type supporting device for solar receiving panel |
| CN106629484A (en) * | 2017-03-16 | 2017-05-10 | 中北大学 | Chain type multi-grade screw rod hoisting platform |
| CN106737577A (en) * | 2016-12-14 | 2017-05-31 | 亿嘉和科技股份有限公司 | A kind of spiral expanding mechanism |
| CN107993544A (en) * | 2018-01-31 | 2018-05-04 | 吴振明 | A kind of pinhole imaging system device for Physics Learning |
| CN108408645A (en) * | 2017-11-09 | 2018-08-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of multistage synchronous lifting device based on carbon fiber cylinder |
| CN108963947A (en) * | 2018-04-16 | 2018-12-07 | 东莞市仁东电气科技有限公司 | A kind of anti-lightning strike catch net of Architectural Equipment |
| CN109081258A (en) * | 2018-09-28 | 2018-12-25 | 武汉道森传动科技有限公司 | A kind of heavy-load type multiple coil lifting device |
| CN110467127A (en) * | 2019-08-02 | 2019-11-19 | 浙江捷昌线性驱动科技股份有限公司 | A kind of five section lifting columns |
| CN110863734A (en) * | 2019-09-23 | 2020-03-06 | 烟台康迪新科智能技术有限公司 | Brand-new intelligent safe case |
| CN111039221A (en) * | 2019-11-08 | 2020-04-21 | 合肥科大智能机器人技术有限公司 | Light lead screw lifting mechanism |
| CN111532656A (en) * | 2020-04-30 | 2020-08-14 | 广东工业大学 | Single-power-source lifting and rotating device for production line and production line conveyor belt |
| CN112533432A (en) * | 2020-11-13 | 2021-03-19 | 深圳市必易网络科技有限公司 | Network security equipment protector |
| CN114229743A (en) * | 2021-11-30 | 2022-03-25 | 西安航天发动机有限公司 | Turbine oxygen pump combination system with lifting platform and turbine oxygen pump combination method |
| CN114654504A (en) * | 2022-04-29 | 2022-06-24 | 烟台艾睿光电科技有限公司 | Large-stroke push rod, pushing and lifting device and robot adopting pushing and lifting device |
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Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103767847A (en) * | 2012-10-23 | 2014-05-07 | 谢夫勒科技股份两合公司 | Lifting system |
| CN104221837A (en) * | 2014-09-01 | 2014-12-24 | 魏延恕 | Horizontal soilless culture system with step motor to drive multi-level barrels to lift |
| CN104283498A (en) * | 2014-10-11 | 2015-01-14 | 李文杨 | Self-rotating type solar device |
| CN104320053A (en) * | 2014-11-03 | 2015-01-28 | 国网辽宁省电力有限公司抚顺供电公司 | Section lifting type supporting device for solar receiving panel |
| CN106737577A (en) * | 2016-12-14 | 2017-05-31 | 亿嘉和科技股份有限公司 | A kind of spiral expanding mechanism |
| CN106629484A (en) * | 2017-03-16 | 2017-05-10 | 中北大学 | Chain type multi-grade screw rod hoisting platform |
| CN108408645B (en) * | 2017-11-09 | 2019-08-20 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of multistage synchronous lifting device based on carbon fiber cylinder |
| CN108408645A (en) * | 2017-11-09 | 2018-08-17 | 中国航空工业集团公司北京长城计量测试技术研究所 | A kind of multistage synchronous lifting device based on carbon fiber cylinder |
| CN107993544A (en) * | 2018-01-31 | 2018-05-04 | 吴振明 | A kind of pinhole imaging system device for Physics Learning |
| CN108963947A (en) * | 2018-04-16 | 2018-12-07 | 东莞市仁东电气科技有限公司 | A kind of anti-lightning strike catch net of Architectural Equipment |
| CN109081258A (en) * | 2018-09-28 | 2018-12-25 | 武汉道森传动科技有限公司 | A kind of heavy-load type multiple coil lifting device |
| CN109081258B (en) * | 2018-09-28 | 2024-02-09 | 武汉道森传动科技有限公司 | Heavy-duty type multistage spiral lifting device |
| CN110467127A (en) * | 2019-08-02 | 2019-11-19 | 浙江捷昌线性驱动科技股份有限公司 | A kind of five section lifting columns |
| CN110863734B (en) * | 2019-09-23 | 2021-09-03 | 烟台康迪新科智能技术有限公司 | Brand-new intelligent safe case |
| CN110863734A (en) * | 2019-09-23 | 2020-03-06 | 烟台康迪新科智能技术有限公司 | Brand-new intelligent safe case |
| CN111039221A (en) * | 2019-11-08 | 2020-04-21 | 合肥科大智能机器人技术有限公司 | Light lead screw lifting mechanism |
| CN111532656A (en) * | 2020-04-30 | 2020-08-14 | 广东工业大学 | Single-power-source lifting and rotating device for production line and production line conveyor belt |
| CN112533432A (en) * | 2020-11-13 | 2021-03-19 | 深圳市必易网络科技有限公司 | Network security equipment protector |
| CN114229743A (en) * | 2021-11-30 | 2022-03-25 | 西安航天发动机有限公司 | Turbine oxygen pump combination system with lifting platform and turbine oxygen pump combination method |
| CN114229743B (en) * | 2021-11-30 | 2023-10-13 | 西安航天发动机有限公司 | Turbine oxygen pump combination system with lifting platform and turbine oxygen pump combination method |
| CN114654504A (en) * | 2022-04-29 | 2022-06-24 | 烟台艾睿光电科技有限公司 | Large-stroke push rod, pushing and lifting device and robot adopting pushing and lifting device |
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| CN102659056B (en) | 2014-12-10 |
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