CN201817169U - Balance weight-free hydraulic elevator - Google Patents
Balance weight-free hydraulic elevator Download PDFInfo
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- CN201817169U CN201817169U CN2010205417757U CN201020541775U CN201817169U CN 201817169 U CN201817169 U CN 201817169U CN 2010205417757 U CN2010205417757 U CN 2010205417757U CN 201020541775 U CN201020541775 U CN 201020541775U CN 201817169 U CN201817169 U CN 201817169U
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- car
- pulley
- oil cylinder
- hydraulic elevator
- counterweight hydraulic
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Abstract
The utility model discloses a balance weight-free hydraulic elevator, comprising a cage. The cage moves in an elevator shaft along a guide rail, and the elevator shaft is provided with a reverse-drawing cylinder and a pulley block. The pulley block comprises at least one set of fall blocks, at least one set of crown blocks and at least one set of cage pulleys. The crown blocks are arranged at the top of the elevator shaft, the fall blocks are arranged at the reverse-drawing end of the reverse-drawing cylinder, and the cage pulleys are arranged on the cage. One end of a hauling cable is fixed at the top of the elevator shaft, and the other end of the hauling cable is fixedly connected with the top of the elevator shaft after passing through the fall blocks, the crown blocks and the cage pulleys. The reverse-drawing cylinder is connected with an oil pump. The elevator in the technical scheme has the advantages of simple structure, is reliable in operation, has small room of elevator shaft, is energy-saving, and the like.
Description
Technical field
The utility model relates to the elevator technology field, relates in particular to a kind of no counterweight hydraulic elevator.
Background technology
Hydraulic elevator is a kind of elevator that utilizes hydraulic power to pass through the lifting of hydraulic oil cylinder driving car.In this elevator structure, lifting mechanism is the structural core of elevator, and it directly influences structure, performance, the cost of elevator, and influence is to the dimensional characteristic of building.Domestic existing hydraulic elevator lifting mechanism generally all adopts oil cylinder jacking type structure, or adopts single cylinder to fall pull-type mechanism.But there is following deficiency relatively:
For oil cylinder jacking type structure:
1, the oil cylinder plunger bears pressure, and for satisfying the stability requirement of plunger, general diameter is bigger;
2, need bigger delivery quality, therefore need bigger fuel tank, make that the The whole control drive system is bigger;
3, headroom height, the pit depth equidimension to hoistway in the building requires bigger.
Fall pull-type elevating mechanism for single cylinder:
1, single shift mechanism system, car adopts the Backpack type structure usually, the complex structure of car, cost increases;
2, single shift mechanism, the limited amount of steel rope, in order to satisfy security requirement, the diameter of steel rope is bigger, and according to the GB requirement, the diameter of assembly pulley pulley must not be less than 40 times of wirerope diameter, thereby the diameter of pulley is bigger; Thereby: the quality of A, system increases, and energy consumption increases; B, the dimensional characteristic of building hoistway is increased;
3, because adopt balance weight mostly, so must adopt guidance system that counterweight is led, increased elevator device complexity and quality like this, improved the load bearing requirements of hauling rope, assembly pulley, cause the elevator hoistways space to increase, increase elevator building cost and use cost.
Summary of the invention
In order to solve above-mentioned technical matters, the purpose of this utility model provides a kind of no counterweight hydraulic elevator, has effects such as simple in structure, reliable, that the elevator hoistways space is little, energy-conservation.
To achieve the above object, the utility model has adopted following technical scheme:
A kind of no counterweight hydraulic elevator, comprise car, car is along guiding rail lifting in hoistway, be provided with in the described hoistway and draw oil cylinder and assembly pulley, described assembly pulley comprises at least one group of movable pulley, at least one group of fixed pulley and at least one group of car pulley, fixed pulley is installed in well headroom, movable pulley is installed in the pull end that falls that draws oil cylinder, the car pulley is installed on the car, hauling rope one end is fixed on well headroom, and behind pile warp movable pulley, fixed pulley and the car pulley, the other end is captiveed joint with well headroom, draws oil cylinder to be connected with oil pump.Adopt no counterweight scheme, reduced elevator complexity and quality, reduced the load bearing requirements of hauling rope, assembly pulley, cause the elevator hoistways space requirement to reduce thereby reduced the assembly pulley size, the building and installation cost and the use cost of elevator reduce greatly like this.And, because adopt pull-type oil cylinder, thus lift car in the uplink and downlink process, the traction end that draws of oil cylinder is stressed all the time, has guaranteed the reliability service of elevator like this.
Wherein, described pulley should be from broad understanding, comprises rope sheave with similar transmission agency, belt wheel, sprocket wheel etc.; Described hauling rope should be from broad understanding, comprises rope with certain flexibility, driving band, chain etc.Here " one group of fixed pulley " is meant the fixed pulley of one or more coaxial rotation, " one group of movable pulley " is meant the movable pulley of one or more coaxial rotation, the notion of why introducing " group " is because be that a plurality of pulleys constitute one group of use mostly in the elevator field, equally, hauling rope also is that the mode with " group " occurs, and realizes that promptly the hauling rope of same transfer function has many.Described assembly pulley is meant by some groups of above-mentioned fixed pulleys and some groups of above-mentioned movable pulleys and constitutes.The described oil cylinder that draws refers to oil pump when oil cylinder pumps into hydraulic oil, the sense of motion of plunger is to draw in cylinder block, here " drawing " has two implications, the one, in the lift car lifting process, the oil cylinder plunger bears pulling force all the time, and the 2nd, the sense of motion of oil cylinder plunger is opposite with the sense of motion of lift car.Described " oil pump " should be fluid power system from broad understanding, can comprise fuel tank, Hydraulic Pump, valve assembly and driving control system etc., and it can be arranged on also can be arranged on hoistway outside formation pumping plant in the hoistway.
As preferably, described oil cylinder and the hoistway bottom of drawing flexibly connects, described draw oil cylinder fall pull end for there not being the guiding free end.This pulling force that draws traction end only need bear on the above-below direction gets final product, there are not counterweight pressure and inertial mass, can not deposit rocking or going here and there in the other direction, so adopt and do not have the guiding free state, convenient installation, cost-cutting are avoided the counterweight guiding and the inconsistent problem that causes of car guiding that originally may occur.
As preferably, the described oil cylinder that draws is arranged on car one side, and two groups of car pulleys are separately positioned on the relative both sides of car and are connected with drawing oil cylinder by two groups of hauling ropes respectively.Adopt both sides application of force traction car, guarantee that cage operation is smooth and easy, simplify car structure, and then reduce the car quality.More preferably, described two groups of car pulleys center symmetry in the car level face.The stressed balance more of car like this.
As preferably, relative both sides respectively are provided with one and draw oil cylinder in the described hoistway, and two are drawn oil cylinder respectively to be connected with car through assembly pulley by one group of hauling rope.Adopt two to draw oil cylinder, two cover assembly pulleys, two side-lining cars, use so at double the quantity of hauling rope, therefore the diameter of hauling rope is reduced, and the diameter of pulley in the assembly pulley reduces simultaneously, thereby the headroom height and the pit depth dimensional characteristic of elevator hoistways in the building reduced.In addition, because hauling rope is connected in the both sides of car, therefore the requirement for car structure two edge-on beams and upper beam etc. is minimized, and makes the more reasonable stress of car, and it is simple that the structure of car is tending towards.More preferably, described two installation site and cooresponding car pulley position center symmetries in the car level face thereof of drawing oil cylinder.Like this, the stressed balance more of car is moved smooth and easy reliable.And because above structural advantage makes that the oeverall quality of elevator device is reduced, thereby has energy-saving effect.This programme is from changing the angle of elevator principle and mechanism, a kind of two pull-type elevating mechanisms that are suitable for hydraulic elevator have been proposed, improved the force-bearing situation of the system of elevator, reduce cylinder diameter and used oil mass, improve the strained condition of car, reduced the structure complexity of car, reduced the assembly pulley size, the quality that reduces elevator device reaches energy-conservation effect, and has reduced the requirement to the building tunnel dimension.
As preferably, described guiding rail is arranged on the car left and right sides, and the described installation site of oil cylinder and the car pulley position of drawing all is positioned at around the guiding rail, disperses to avoid oil cylinder to fall the application force of pull end.More preferably, described guiding rail is the two guide rails that are arranged on the car left and right sides, and the described installation site of oil cylinder and the car pulley position of drawing all is positioned in the middle of the guide rail of two homonymies.Have better effect and operational effect.
When adopting single group hauling rope to draw car, hauling rope preferably is fixedly connected on car top central authorities; When adopting two groups or when organizing hauling rope, described hauling rope is fixedly connected on car top or all can in the car bottom more.Above-mentioned hauling rope is a steel rope.The transmitting ratio of above-mentioned assembly pulley can be 1:2,1:3 or 1:4.
The utility model compared with prior art has following advantage owing to adopted above technical scheme:
1, oil cylinder all bears pulling force in car uplink and downlink process, does not have destabilization problems, so its diameter can be littler, uses oil mass thereby reduce, and then reduces pumping plant fuel tank volume.
2, adopt two oil cylinders of distribution hoistway both sides, sister block group structure makes the power that lifts car be distributed in the car both sides, because make the stressed more reasonable of car, simplifies the car design, and car is lighter and handier, so the cost of car also is minimized.
3, adopt two oil cylinders of distribution hoistway both sides, sister block group structure, make the quantity that increases steel rope on layout, can realize, thereby under the requirement condition that satisfies standard GB 7588, the diameter of assembly pulley middle pulley is reduced, thereby reduced size, especially the requirement of hoistway headroom height and pit depth size to elevator hoistways in the building.
4, because car can design lightlyer, and the assembly pulley size is diminished, and then the total quality of elevator device diminished, and therefore compares with traditional hydraulic elevator mechanism, can arrive energy-conservation effect.
5, adopt no counterweight scheme, the plunger of oil cylinder does not need guiding, elevator complexity and quality have been reduced, reduced the load bearing requirements of hauling rope, assembly pulley, cause the elevator hoistways space requirement to reduce thereby reduced the assembly pulley size, the building and installation cost and the use cost of elevator reduce greatly like this.
Description of drawings
Fig. 1 is the structural representation of embodiment 1.
Fig. 2 is the interior dependency structure scheme drawing of car level face of embodiment 1.
Fig. 3 is the interior dependency structure scheme drawing of car level face of embodiment 2.
Fig. 4 is the structural representation of embodiment 3.
Fig. 5 is the structural representation of embodiment 4.
Fig. 6 is the structural representation of embodiment 5.
Fig. 7 is the interior dependency structure scheme drawing of car level face of embodiment 5.
Fig. 8 is the interior dependency structure scheme drawing of car level face of embodiment 6.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present utility model is made a detailed explanation.
Embodiment 1:
A kind of no counterweight hydraulic elevator as shown in Figure 1 and Figure 2, comprise car 5, car 5 is along guiding rail 8 lifting in hoistway, be provided with in the described hoistway and draw oil cylinder 6 and assembly pulley, described assembly pulley comprises at least one group of movable pulley 3, at least one group of fixed pulley 2 and at least one group of car pulley 4, fixed pulley 2 is installed in well headroom, movable pulley 3 is installed in the pull end that falls that draws oil cylinder 6, car pulley 4 is installed on the car 5, hauling rope 1 one ends are fixed on well headroom, and behind pile warp movable pulley 3, fixed pulley 2 and the car pulley 4, the other end is captiveed joint with well headroom.
In this example, the described oil cylinder 6 that draws is pull-type oil cylinder, falls pull end for there not being the guiding free end, and promptly the lower end of pull-type oil cylinder and hoistway bottom flexibly connects, and the piston rod of pull-type oil cylinder is not done the guiding restriction.Relative both sides respectively are provided with a pull-type oil cylinder 6 in the described hoistway, two pull-type oil cylinders 6 drive synchronization action by an oil pump 7 that is arranged on the hoistway outside, two pull-type oil cylinders 6 respectively are connected with the car pulley through assembly pulley by one group of hauling rope, and two groups are drawn the installation site of oil cylinder and installation site center symmetry in the car level face of cooresponding car pulley thereof.As shown in Figure 1, this example adopts two groups of independently assembly pulleys, and as shown in Figure 2, this example car adopts homonymy single-rail guiding, and two pull-type oil cylinders 6 are separately positioned on E and F position, and described car pulley 4 is installed on the car top upper beam 51.Described hauling rope is a steel rope, and the transmitting ratio of described assembly pulley is 1:1.
When control lift car 5 is up: oil pump 7 work, up hydraulic valve is opened, and hydraulic oil is pumped to oil cylinder 6, and the oil cylinder plunger is inwardly drawn in, and by steel rope 1 and assembly pulley, traction elevator sedan-chair 5 railway carriage or compartments are operation upwards.When control lift car 5 was descending: the descending hydraulic valve in the oil pump 7 was opened, and lift car 5 moves down in the effect of deadweight, stretched out by steel rope 1 and assembly pulley pulling oil cylinder 6 plungers simultaneously, and hydraulic oil enters in the fuel tank in the oil pump 7.
This example can also have multiple work-around solution: for example two pull-type oil cylinders 6 are separately positioned on A and D position, perhaps, B and C position; For example increase movable pulley quantity, make that the transmitting ratio of assembly pulley is 1:2,1:3 or 1:4.
Embodiment 2:
A kind of no counterweight hydraulic elevator as shown in Figure 3 only is with the different of embodiment 1: this example car adopts the two guide rail guiding of homonymy, and two pull-type oil cylinders 6 are separately positioned between two guide rails 8 of homonymy.
Embodiment 3:
A kind of no counterweight hydraulic elevator as shown in Figure 4, only be with the different of embodiment 1: the winding mode difference of hauling rope, present embodiment, hauling rope 1 one ends are fixed on well headroom, downward pile warp left side movable pulley, the pile warp that makes progress again left side fixed pulley, walk around downwards again and be arranged on put the beams in place two car pulleys 4 of 51 both sides of car 5 bottoms, pile warp right side fixed pulley upwards again, pile warp right side movable pulley downwards, the other end is fixed on well headroom; The transmitting ratio of assembly pulley also is 1:1.
Embodiment 4:
A kind of no counterweight hydraulic elevator as shown in Figure 5 only is with the different of embodiment 3: the car pulley 4 of both sides is arranged on the underbeam 52 of car bottom, and hauling rope is revealed all the details from the car bottom.
Embodiment 5:
As Fig. 6, a kind of no counterweight hydraulic elevator shown in Figure 7, only be with the different of embodiment 1: this example adopts a pull-type oil cylinder 6; Described car pulley is for being installed in two groups of pulleys of the relative both sides of car respectively.The installation site of described two groups of car pulleys is the center symmetry in the car level face; As shown in Figure 7, car adopts homonymy single-rail guiding, and oil cylinder is arranged on the E' position, can also be A ', B ', C ', D ' or F ' position certainly.
Embodiment 6:
A kind of no counterweight hydraulic elevator as shown in Figure 8 only is with the different of embodiment 5: this example car adopts the two guide rail guiding of homonymy, and pull-type oil cylinder 6 is arranged between two guide rails of homonymy, G' position or H ' position.
More than for example only for the configuring condition of better explanation hauling rope, assembly pulley and oil cylinder, the utility model protection domain does not limit to above giving an example, and any substitute mode that is equal under the utility model initiative spirit all drops in the utility model protection domain.
Claims (10)
1. no counterweight hydraulic elevator, comprise car, car is along guiding rail lifting in hoistway, it is characterized in that, be provided with in the described hoistway and draw oil cylinder and assembly pulley, described assembly pulley comprises at least one group of movable pulley, at least one group of fixed pulley and at least one group of car pulley, fixed pulley is installed in well headroom, movable pulley is installed in the pull end that falls that draws actuating device, the car pulley is installed on the car, and hauling rope one end is fixed on well headroom, and behind pile warp movable pulley, fixed pulley and the car pulley, the other end is captiveed joint with well headroom, draws oil cylinder to be connected with oil pump.
2. a kind of no counterweight hydraulic elevator according to claim 1 is characterized in that, described oil cylinder and the hoistway bottom of drawing flexibly connects, and the described pull end that falls of oil cylinder that draws is nothing guiding free end.
3. a kind of no counterweight hydraulic elevator according to claim 2 is characterized in that, the described oil cylinder that draws is arranged on car one side, and two groups of car pulleys are separately positioned on the relative both sides of car and also are connected with drawing oil cylinder by two groups of hauling ropes respectively.
4. a kind of no counterweight hydraulic elevator according to claim 3 is characterized in that, described two groups of car pulleys center symmetry in the car level face.
5. a kind of no counterweight hydraulic elevator according to claim 2 is characterized in that, relative both sides respectively are provided with one and draw oil cylinder in the described hoistway, and two are drawn oil cylinder respectively to be connected with car through assembly pulley by one group of hauling rope.
6. a kind of no counterweight hydraulic elevator according to claim 5 is characterized in that, described two installation site and cooresponding car pulley position center symmetries in the car level face thereof of drawing oil cylinder.
7. according to each described a kind of no counterweight hydraulic elevator in the claim 3 to 6, it is characterized in that described guiding rail is arranged on the car left and right sides, the described installation site of oil cylinder and the car pulley position of drawing all is positioned at around the guiding rail.
8. according to each described a kind of no counterweight hydraulic elevator in the claim 3 to 6, it is characterized in that, described guiding rail is the two guide rails that are arranged on the car left and right sides, and the described installation site of oil cylinder and the car pulley position of drawing all is positioned in the middle of the guide rail of two homonymies.
9. a kind of no counterweight hydraulic elevator according to claim 1 is characterized in that, described car pulley is arranged on car bottom or top.
10. a kind of no counterweight hydraulic elevator according to claim 1 is characterized in that the transmitting ratio of described assembly pulley is 1:2,1:3 or 1:4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205417757U CN201817169U (en) | 2010-09-26 | 2010-09-26 | Balance weight-free hydraulic elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205417757U CN201817169U (en) | 2010-09-26 | 2010-09-26 | Balance weight-free hydraulic elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201817169U true CN201817169U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205417757U Expired - Fee Related CN201817169U (en) | 2010-09-26 | 2010-09-26 | Balance weight-free hydraulic elevator |
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| Country | Link |
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| CN (1) | CN201817169U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106315356A (en) * | 2016-09-19 | 2017-01-11 | 中都国脉电梯有限公司 | Hydraulic drive ground floor elevator |
| CN102913017B (en) * | 2012-07-31 | 2017-02-22 | 中铁工程设计院有限公司 | Lifting appliance of subway (urban) train |
-
2010
- 2010-09-26 CN CN2010205417757U patent/CN201817169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913017B (en) * | 2012-07-31 | 2017-02-22 | 中铁工程设计院有限公司 | Lifting appliance of subway (urban) train |
| CN106315356A (en) * | 2016-09-19 | 2017-01-11 | 中都国脉电梯有限公司 | Hydraulic drive ground floor elevator |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20180926 |