CN102101617B - Safety lifter - Google Patents
Safety lifter Download PDFInfo
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- CN102101617B CN102101617B CN 201110070868 CN201110070868A CN102101617B CN 102101617 B CN102101617 B CN 102101617B CN 201110070868 CN201110070868 CN 201110070868 CN 201110070868 A CN201110070868 A CN 201110070868A CN 102101617 B CN102101617 B CN 102101617B
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- lifting
- pulley
- main table
- table top
- hydraulic cylinder
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Abstract
The invention relates to a safety lifter mainly solving the problem that the traditional lifter has the problem of poor safety because loading capacity is limited. The safety lifter comprises a track main frame, a main table facet, a lifting mechanism, a hydraulic station and an electric control system, wherein both sides of the track main frame are symmetrically provided with clamping passages; rectangular through holes are uniformly distributed on the clamping passages; the positions below the main table facet, which correspond to the clamping passages, are respectively provided with spring hydraulic cylinders; the end parts of pistons rods of the spring hydraulic cylinders are provided with wedge-shaped blocks; the spring hydraulic cylinders are connected with the electric control system; a broken rope protection mechanism is arranged between the lifting mechanism and the track main frame; the lifting mechanism comprises a lower tackle, an upper tackle, a lifting hydraulic cylinder, a lifting pulley and a lifting steel rope; and the broken rope protection mechanism comprises a protective pulley and a protective steel rope. The safety lifter has the advantages of greatly enhanced safety and loading capacity, compact structure, convenience for use, and the like.
Description
Technical field
The present invention relates to a kind of elevator, specifically a kind of safety cage.
Background technology
Traditional elevator is comprised of lifting owner table top, balance block, electrical motor and the chain etc. that connects electrical motor and main table top.Its lifting principle mainly is to utilize the power of electrical motor to hang power elevation owner table top by chain, finishes the lifting process of main table top.If but this kind elevator in use has a power failure, the situation that will cause lifting owner table top can not rise and can not descend, extremely inconvenient.
Along with the development of technology, the hydraulic hoist of motor power occurred replacing with hydraulic power afterwards, hydraulic hoist can utilize the deadweight of piston rod to descend the situation of having avoided main table top can not rise and can not descend when descending.
Modal hydraulic hoist is oil cylinder chain-type elevator and rail mounted elevator in the market, these two kinds of hydraulic hoists have advantages of following apparent in view: the one, and the relatively other forms of hydraulic hoist of physical construction is simple, reasonable, therefore consumes material and low cost of manufacture; The 2nd, hoisting speed is fast, owing to being that oil cylinder vertically acts on movable pulley drive chain lifting mechanism, hoisting speed is 2 times of oil cylinder speed.But; no matter be elevator or the hydraulic hoist take electrical motor as power, it does not all have chain breakage protection device, the danger that so in use exists chain to be broken to cause main table top out of control; and adopt chain to hang and draw main table top, so that the load carrying ability of this class elevator is very limited.
Summary of the invention
The object of the present invention is to provide a kind of safety cage, this elevator load bearing ability strengthens and is provided with wire rope breaking protection and card road breaking rope protecting, and safety is high.
The present invention solves the technical scheme that its technical matters takes: a kind of safety cage, comprise a main table top that moves up and down along a pair of vertically arranged track body frame, be installed in lifting mechanism, Hydraulic Station and the electric control system of main table top top, it is characterized in that, described track body frame is made of the montant that is vertically set on both sides and the cross bar that is installed in parallel between two montants, and the two ends of cross bar are protruded and are provided with the rectangle projection in the outside of montant and in the end; The monosymmetric Ka Dao that is provided with of track body frame, described Ka Dao is strip, is evenly distributed with rectangular through-hole on the Ka Dao, and described rectangular through-hole matches with described rectangle projection; There is the spring hydraulic cylinder position of the corresponding Ka Dao in the below of main table top respectively horizontal arrangement, and the piston rod end of spring hydraulic cylinder is provided with the wedge that matches with described rectangular through-hole, and the spring hydraulic cylinder is connected with described electric control system; Be provided with breaking rope protecting mechanism between described lifting mechanism and the track body frame.
Described lifting mechanism comprises lower block, upper pulley, lifting hydraulic cylinder, lifting pulley and lifting wire rope; Described lower block is positioned at the top of described main table top and captives joint with described main table top, and described upper pulley is positioned at the top of lower block; The cylinder barrel of described lifting hydraulic cylinder connects the bottom of described track body frame, and the piston rod of lifting hydraulic cylinder is the connection of being connected with upper pulley; Described lifting pulley symmetry is fixed on the both sides of upper pulley upper surface, and lifting wire rope one end is fixed on the described track body frame, and the other end is walked around lifting pulley and is connected on the lower block.
Described breaking rope protecting mechanism comprises protection pulley and protection steel rope; described protection pulley symmetry is fixed on described upper pulley upper surface and is positioned at the inboard of described lifting pulley; protection steel rope one end is fixed on the described track body frame, and the other end is walked around the protection pulley and is connected on the described lower block.
Described spring hydraulic cylinder comprises adapter plate, cylinder barrel and cylinder cap, piston and piston rod and retracing spring, and described cylinder barrel is positioned on the adapter plate, piston rod in cylinder barrel an end and the end face of cylinder barrel between be provided with retracing spring; Adapter plate is fixedly mounted on the bottom surface of described main table top.
The invention has the beneficial effects as follows: lifting mechanism adopts steel rope to hang and draws main table top, and weight capacity strengthens; Be provided with wire rope breaking protection mechanism and Ka Dao breaking rope protecting, duplicate protection is effectively avoided hanging the steel rope that draws main table top and is broken the danger that causes main table top out of control; Compact overall structure, easy to use.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is Fig. 1 interrupt restricting partial enlarged drawing of protection mechanism arrangement structure;
Fig. 3 is the structural representation of Fig. 1 medi-spring hydraulic actuating cylinder.
Among the figure: 1 track body frame, 2 main table tops, 3 upper pulleys, 4 lower blocks, 5 Hydraulic Stations, 6 lifting hydraulic cylinders; 7 lifting wire ropes, 8 protection steel ropes, 9 lifting pulleys, 10 protection pulleys, 11 spring hydraulic cylinders, 12 Ka Dao; 13 wedges, 14 cylinder barrels, 15 pistons, 16 retracing springs, 17 adapter plates.
The specific embodiment
The invention will be further described below in conjunction with Figure of description and embodiment:
Shown in Figure of description.A kind of safety cage, comprise main table top 2, the lifting mechanism that is installed in main table top 2 tops, Hydraulic Station 5 and an electric control system of moving up and down along a pair of vertically arranged track body frame 1, described track body frame 1 is made of the montant that is vertically set on both sides and the cross bar that is installed in parallel between two montants, and the two ends of cross bar are protruded and are provided with the rectangle projection in the outside of montant and in the end; The monosymmetric card road 12 that is provided with of track body frame 1, described card road 12 is strip, and card is evenly distributed with rectangular through-hole on the road 12, and described rectangular through-hole matches with described rectangle projection; There is spring hydraulic cylinder 11 position in corresponding card road 12, the below of main table top 2 respectively horizontal arrangement, and the piston rod end of spring hydraulic cylinder 11 is provided with the wedge 13 that matches with described rectangular through-hole, and spring hydraulic cylinder 11 is connected with described electric control system; Be provided with breaking rope protecting mechanism between described lifting mechanism and the track body frame 1.
Such as Fig. 1, described lifting mechanism comprises lower block 4, upper pulley 3, lifting hydraulic cylinder 6, lifting pulley 9 and lifting wire rope 7; Described lower block 4 is positioned at the top of described main table top 2 and captives joint with described main table top 2, and described upper pulley 3 is positioned at the top of lower block 4; The cylinder barrel of described lifting hydraulic cylinder 6 connects the bottom of described track body frame 1, and the piston rod of lifting hydraulic cylinder 6 is connected the middle part and is connected with upper pulley; Described lifting pulley 9 symmetries are fixed on the both sides of upper pulley 3 upper surfaces, and lifting wire rope 7 one ends are fixed on the described track body frame 1, and the other end is walked around lifting pulley 9 and is connected on the lower block 4.
Such as Fig. 2; described breaking rope protecting mechanism comprises protection pulley 10 and protection steel rope 8; described protection pulley 10 symmetries are fixed on described upper pulley 3 upper surfaces and are positioned at the inboard of described lifting pulley 9; protection steel rope 8 one ends are fixed on the described track body frame 1, and the other end is walked around protection pulley 10 and is connected on the described lower block 4.
Such as Fig. 3, described spring hydraulic cylinder 11 comprises adapter plate 17, cylinder barrel 14 and cylinder cap, piston 15 and piston rod and retracing spring 16, described cylinder barrel 14 is positioned on the adapter plate 17, piston rod in cylinder barrel 14 an end and the end face of cylinder barrel between be provided with retracing spring 16; Adapter plate 17 is fixedly mounted on the bottom surface of described main table top 2.Retracing spring 16 not only plays the effect that resets, and also plays the effect of buffering, effectively guarantees the service life of spring hydraulic cylinder 11.
Principle of work of the present invention is: during rising, and Hydraulic Station 5 electric motor startings, the piston rod of lifting hydraulic cylinder 6 stretches out, and the piston rod of lifting hydraulic cylinder 6 withstands upper pulley 3 and makes its rising, and upper pulley 3 drives lifting wire rope 7 and protection steel rope 8 moves up.Because be that piston rod vertically acts on movable pulley drive rope hoisting mechanism, lifting wire rope 7 and protection steel rope 8 moving velocitys are 2 times of piston traveling speed, lifting wire rope 7 and protection steel rope 8 spur lower blocks 4 and main table top 2 rises.Meanwhile, the spring hydraulic cylinder 11 of main table top 2 belows rises along card road 12 simultaneously, and stretch out with blocking under the control of electric control system, atresia is returned by 12 chance holes, road for wedge 13.
During decline, Hydraulic Station 5 electric motor startings, hydraulic oil refluxes, pressure signal is to lifting hydraulic cylinder 6, after sensing pressure signal, opens hydraulic control one-way valve in the lifting hydraulic cylinder 6, the piston rod of lifting hydraulic cylinder 6 descends by deadweight, thereby so that upper pulley 3 and lower block 4 descend, realizes the decline of main table top 2.
Lifting wire rope 7 improves greatly compared with traditional elevating chain weight capacity and safety, if unexpected fracture appears in lifting wire rope 7 in the elevator working process, protection steel rope 8 still can hang main table top 2, prevents main table top 2 phenomenon out of control.In addition; when spring hydraulic cylinder 11 rose along card road 12, stretched out with blocking, atresia is returned by 12 chance holes, road for wedge 13, shields at any time; wedge 13 can be stuck in the rectangular through-hole in card road 12 when unexpected fracture appearred in lifting wire rope 7, avoided main table top 2 out of control.The protection mechanism duplicate protection that has like this wire rope breaking protection mechanism and wedge 13 and card road 12 to cooperatively interact, safety is high.
Except the described technical characterictic of specification sheets, all the other technical characterictics are those skilled in the art's known technology.
The above, principles more of the present invention just explain through diagrams, this specification sheets be not be the present invention to be confined to shown in described concrete structure and the Applicable scope, therefore every corresponding modify that might be utilized and equivalent all belong to the claim that the present invention applies for.
Claims (4)
1. safety cage, comprise a main table top that moves up and down along a pair of vertically arranged track body frame, be installed in lifting mechanism, Hydraulic Station and the electric control system of main table top top, it is characterized in that, described track body frame is made of the montant that is vertically set on both sides and the cross bar that is installed in parallel between two montants, and the two ends of cross bar are protruded and are provided with the rectangle projection in the outside of montant and in the end; The monosymmetric Ka Dao that is provided with of track body frame, described Ka Dao is strip, is evenly distributed with rectangular through-hole on the Ka Dao, and described rectangular through-hole matches with described rectangle projection; There is the spring hydraulic cylinder position of the corresponding Ka Dao in the below of main table top respectively horizontal arrangement, and the piston rod end of spring hydraulic cylinder is provided with the wedge that matches with described rectangular through-hole, and the spring hydraulic cylinder is connected with described electric control system; Be provided with breaking rope protecting mechanism between described lifting mechanism and the track body frame.
2. a kind of safety cage according to claim 1 is characterized in that, described lifting mechanism comprises lower block, upper pulley, lifting hydraulic cylinder, lifting pulley and lifting wire rope; Described lower block is positioned at the top of described main table top and captives joint with described main table top, and described upper pulley is positioned at the top of lower block; The cylinder barrel of described lifting hydraulic cylinder connects the bottom of described track body frame, and the piston rod of lifting hydraulic cylinder is the connection of being connected with upper pulley; Described lifting pulley symmetry is fixed on the both sides of upper pulley upper surface, and lifting wire rope one end is fixed on the described track body frame, and the other end is walked around lifting pulley and is connected on the lower block.
3. a kind of safety cage according to claim 2; it is characterized in that; described breaking rope protecting mechanism comprises protection pulley and protection steel rope; described protection pulley symmetry is fixed on described upper pulley upper surface and is positioned at the inboard of described lifting pulley; protection steel rope one end is fixed on the described track body frame, and the other end is walked around the protection pulley and is connected on the described lower block.
4. a kind of safety cage according to claim 1, it is characterized in that, described spring hydraulic cylinder comprises adapter plate, cylinder barrel and cylinder cap, piston and piston rod and retracing spring, described cylinder barrel is positioned on the adapter plate, piston rod in cylinder barrel an end and the end face of cylinder barrel between be provided with retracing spring; Adapter plate is fixedly mounted on the bottom surface of described main table top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110070868 CN102101617B (en) | 2011-03-23 | 2011-03-23 | Safety lifter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110070868 CN102101617B (en) | 2011-03-23 | 2011-03-23 | Safety lifter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102101617A CN102101617A (en) | 2011-06-22 |
| CN102101617B true CN102101617B (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110070868 Active CN102101617B (en) | 2011-03-23 | 2011-03-23 | Safety lifter |
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| Country | Link |
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| CN (1) | CN102101617B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103274335B (en) * | 2013-05-29 | 2015-12-23 | 广西鑫深科技有限公司 | Straight top type loading lifting table |
| CN105523510B (en) * | 2014-09-30 | 2018-03-02 | 苏州沃斯汀电梯有限公司 | Hoistable platform falling proof device and the hoistable platform equipment for including it |
| CN105692515A (en) * | 2016-04-26 | 2016-06-22 | 邹平县供电公司 | Anti-falling electric power construction lifter |
| CN106495061B (en) * | 2016-11-23 | 2018-11-16 | 无锡市伟丰印刷机械厂 | Stable lifting device for steel structure machining |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2285035B (en) * | 1993-12-22 | 1998-01-07 | Leon Mechatronics Corp | Lift assembly for parking cars |
| CN201043112Y (en) * | 2007-06-07 | 2008-04-02 | 中国建筑第七工程局 | Elevator for building construction |
| ES2347743B1 (en) * | 2008-04-23 | 2011-09-22 | Mecamesor, S.A. | SAFETY DEVICE FOR LIFTING MECHANISMS BY LOOSENING OR BREAKING THE SUSPENSOR CABLE. |
| CN201354279Y (en) * | 2008-12-30 | 2009-12-02 | 上海市松江二中 | Elevator with out-of-control protective device |
| CN202011684U (en) * | 2011-03-23 | 2011-10-19 | 济南大力神机械制造有限公司 | Safe elevator |
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2011
- 2011-03-23 CN CN 201110070868 patent/CN102101617B/en active Active
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| Publication number | Publication date |
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| CN102101617A (en) | 2011-06-22 |
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