CN103994161A - Retarder - Google Patents
Retarder Download PDFInfo
- Publication number
- CN103994161A CN103994161A CN201310282210.XA CN201310282210A CN103994161A CN 103994161 A CN103994161 A CN 103994161A CN 201310282210 A CN201310282210 A CN 201310282210A CN 103994161 A CN103994161 A CN 103994161A
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- China
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- driven shaft
- pivoted frame
- retarder
- oil hydraulic
- hydraulic system
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Abstract
The invention provides a retarder. The retarder comprises a shell, a driven shaft rotating stand, a gear train mechanism, a hydraulic system and a brake. The retarder is characterized in that the driven shaft rotating stand is respectively meshed with the brake and the hydraulic system through the gear train mechanism, and the driven shaft rotating stand, the gear train mechanism, the hydraulic system and the brake are installed in the shell. When the retarder works, the driven shaft rotating stand drives the hydraulic system to generate braking pressure through gradual increase of the rotation speed of the gear train mechanism, so that the brake is forced to restrain and brake the driven shaft rotating stand, the driven shaft rotating stand is dually hindered by liquid flow and frictional damping, kinetic energy is converted into internal energy to be dissipated, and different speed limiting effects can be achieved through a fine adjustment system. The retarder is arranged for man riding lifting machines such as a descent control device for escape, an escape cable car, an elevator and a lifting cage, and slow descent of the carriers at constant speed is guaranteed. When disasters or accidents happen, it can be guaranteed that users descend slowly, safely and stably to an exit of the lowermost floor to escape, and the dangerous situation in which the users are trapped in a high rise or in the air and wait for rescue is avoided.
Description
Affiliated technical field
The present invention relates to mechanical transmissioning technology field, be specifically related to a kind of speed limiting device for elevation and subsidence mechanical and damping retarder.
Background technique
Along with society's development, building are built higher and higher.But, when the crowd in tall building of living in meets the dangerous situations such as fire, earthquake, attack, once corridor is obstructed and elevator can not use being extremely dangerous, be also the previous unsolved world-famous puzzle of order.Fall-slowing device for rescuing from high building is the escape equipment that a kind of user automatically declines and can back and forth use with certain speed by deadweight, and wherein, the security and stability of retarder directly injures survivor's life safety.Existing a kind of lifesaving descent control device being in daily use, its retarder is much made up of gear train speed increasing mechanism and centrifugal-block arrestment mechanism, when work, make the rotating speed of driving gear be incremented to step by step driving wheel by certain velocity ratio, braking loose piece radially throws away under the effect of centrifugal force, produces outer tension force, drive the raw spin friction of braking plate and metal brake hair updo, form braking force, thereby automatically regulate rate of descent, and can back and forth use, simple in structure, simple to operate.Because the braking force of speed limit is to produce surface friction drag by centrifugal-block and wheel hub, this resistance increases, and forces driving gear retarding braking.But, if once spin friction device is lubricated or lubricating system not at that time or be rotated fricative braking force by centrifugal force and hold deadweight that can't stand human body, will cause checking brake to lose efficacy, be fatal hidden danger to user.
In order to address the above problem, Chinese patent ZL200920193792.3 discloses a kind of hydraulic automatic speed limitting device, utilize flow of fluid damping that human body potential energy is changed into fluid power, making retarder possess hydraulic damping and mechanical damping forms dual control and checks and balances, reach the object of automatic speed-limiting, but complex structure, and fabricating cost is higher, after using repeatedly, rope reeling mechanism is easily out of order.
Escape equipment party orders safety, no margin for error, so, invent and a kind ofly can make slow velocity-stabilization, the speed limiting device easy and simple to handle of falling, so that guarantee that escape personnel exempts from injury, Portable safety escape, has very important significance and acts on.
Summary of the invention
The object of the invention is: in order to solve the problems of the technologies described above, provide a kind of and can avoid that mechanical friction, movable part between moving element can lubricate, the retarder of velocity-stabilization, compact structure, Portable safety, make it be provided in the manned lift machineries such as escaping descent control device, escape cable car, elevator, lifting cage, can ensure that carrier constant speed is slow falls, in the time meeting the condition of a disaster or accidents happened, all can ensure safely and smoothly slow lowermost layer outlet escape, the dangerous crisis that solves stranded high building or wait for rescue of dropping to of user in the air.
Realizing technological scheme of the present invention is: a kind of retarder is provided, it comprises housing, driven shaft pivoted frame, gear mechanism, hydraulic system and break, it is characterized in that: driven shaft pivoted frame engages with break and hydraulic system respectively by gear mechanism, and driven shaft pivoted frame, gear mechanism, hydraulic system and break are loaded in housing.
According to an embodiment of the invention, wherein, described break comprises platen and driven disc, and driven disc engages with driven shaft pivoted frame, platen connecting fluid pressing system.
According to an embodiment of the invention, wherein, described driven shaft pivoted frame comprises axis body and driven pivoted frame.
According to an embodiment of the invention, wherein, described hydraulic system comprises oil hydraulic pump, oil hydraulic cylinder, piston, oil purifier and hydraulic medium, and described oil hydraulic pump front end connects with gear mechanism, rear end connecting fluid cylinder pressure; Described oil purifier is located at hydraulic pressure pump intake; Described oil hydraulic cylinder comprises damping hole and one-way valve, and one-way valve is located at the ingress that oil hydraulic pump leads to oil hydraulic cylinder, and the inner chamber that damping hole is arranged on oil hydraulic cylinder communicates with housing; Described piston outer rim is connected with the platen of break; Described hydraulic medium is loaded in housing, and when work, flow through oil purifier, oil hydraulic pump and one-way valve of hydraulic medium enters oil hydraulic cylinder, circulates by damping hole backflow housing.
According to an embodiment of the invention, wherein, described gear mechanism comprises external toothing, at the central gear in external toothing center portion, be engaged on several rows star-wheel and the planet carrier that is connected all planet wheel rotating shafts between external toothing and central gear, central gear connects the driven shaft of oil hydraulic pump, external toothing is fixed on the front end of oil hydraulic pump, and planet carrier is arranged on driven shaft pivoted frame and engages with the driven disc of break.
According to an embodiment of the invention, wherein, described housing comprises gland seal device, fixing bolt and oilhole bolt, and the shaft seal of described gland seal device is mated with the axis body of driven shaft pivoted frame.
Take technique scheme, the invention a kind of liquid flow damping system and hydraulic brake system is coaxially braked and can be two-way the retarder of dual control constraint driven shaft pivoted frame.Its working principle is: when work, driven shaft pivoted frame increases progressively drive hydraulic system principle by gear mechanism rotating speed and forms retardation pressure, forces break to retrain braking to driven shaft pivoted frame.Make driven shaft pivoted frame be subject to the dual obstruction of liquid stream and frictional damping simultaneously, kinergety is converted into braking fluid power and interior can dissipation, reduces mechanical energy, realize movable machinery is retrained to braking and speed limit, by fine setting damping hole, can obtain different speed limit effects.
The invention has the beneficial effects as follows: an aspect of of the present present invention, provide a kind of simple and practical, constant speed is stable, anticorrosion durable, possesses the retarder of two-way dual control constraint braking, especially fall-slowing device for rescuing from high building, when user rescues people in falling process or when rope increases the weight of suddenly or many people are overloaded Emergency uses such as use slow temporarily, the present invention all can two-wayly delay and fall from moving constraint braking, even long-time, uninterrupted back and forth use also there will not be to decline to be accelerated, the danger situation that waits out of control skids, make up current fall-slowing device for rescuing from high building and there is no the sense of security, risk is used, complex structure, mechanical dry friction, the shortcomings such as safety coefficient is not high.Another aspect of the present invention, provide that the elevation and subsidence mechanicals such as a kind of cage when using in elevator that building is used, mine occur hypervelocity, disconnected rope and electric short circuit, open circuit, when the very serious fault such as on fire, car, cage can not fall or hovering, the slow retarder that drops to lowermost layer outlet escape reposefully can ensure safety, solve user of service and be trapped in the dangerous crisis waiting for rescue in the air, strengthen the safety guarantee of current elevation and subsidence mechanical, realizing safe escape and scientific and technological strong novel system of pacifying, is a scientific and technical innovation of effectively taking precautions against and contain security incident.
Brief description of the drawings:
Describe in conjunction with the drawings embodiments of the present invention, make those skilled in the art have more clear and thorough understanding to the present invention.Wherein:
Fig. 1 shows the structural representation according to one embodiment of the present invention.
Fig. 2 and Fig. 3 show working principle schematic diagram of the present invention.
Embodiment:
For the ease of those skilled in the art's understanding, below in conjunction with embodiment and accompanying drawing, the present invention is further illustrated, and the content that mode of execution is mentioned not is limitation of the invention.
Embodiment 1
As shown in Figure 1, according to a kind of retarder of an embodiment of the invention, comprise housing (1), driven shaft pivoted frame (2), gear mechanism (3), hydraulic system (4) and break (5); Described housing (1) comprises gland seal device (1-1), oilhole bolt (1-2) and fixing bolt (1-3); Described driven shaft pivoted frame (2) comprises axis body (2-1) and driven pivoted frame (2-2), and axis body (2-1) is connected with driven pivoted frame (2-2); Described break (5) comprises platen (5-1) and driven disc (5-2); Described hydraulic system (4), wherein, comprise oil hydraulic pump (4-1), oil hydraulic cylinder (4-2), piston (4-3), damping hole (4-4), one-way valve (4-5), oil purifier (4-6) and hydraulic medium (4-7), oil hydraulic cylinder (4-2) is arranged on the rear end of oil hydraulic pump (4-1), one-way valve (4-5) is located at oil hydraulic pump (4-1) and leads on the passage between oil hydraulic cylinder (4-2), oil purifier (4-6) is located at the suction port of oil hydraulic pump (4-1), and damping hole (4-4) is arranged on piston (4-3); Described gear mechanism (3) wherein, comprise external toothing (3-3), be positioned at external toothing (3-3) center portion central gear (3-2), be engaged on the several rows star-wheel (3-2) between external toothing (3-3) and central gear (3-1) and connect the planet carrier (3-4) of all planet wheels (3-2) rotating shaft; Described central gear (3-1) connects with oil hydraulic pump (4-2) driven shaft; Described external toothing (3-3) is fixed on the front end of oil hydraulic pump (4-2); Described planet carrier (3-4) is fixed on driven pivoted frame (2-2); Described driven pivoted frame (2-2) engages with driven disc (5-1); Described piston (4-3) is connected with platen 5-2; Described oil-sealing arrangement (1-1) mates with axis body (2-1); The driven shaft of described oil hydraulic pump (4-1) connects with gear mechanism (3); Described break (5) is connected by fixing bolt (1-3) and is loaded in housing (1) with oil hydraulic pump (4).
Fig. 2 illustrates fundamental diagram of the present invention, makes those skilled in the art have more clear and thorough understanding to working principle of the present invention.
Working principle of the present invention is as follows:
As shown in Figure 2, according to an embodiment of the invention, driven shaft pivoted frame (2), gear mechanism (3), hydraulic system (4) and braking (5) are loaded in housing (1), wherein, hydraulic medium (4-7) is filled in whole housing (1), when work, flow through oil purifier (4-6), oil hydraulic pump (4-1), one-way valve (4-5) of hydraulic medium (4-7) enters oil hydraulic cylinder (4-2), by damping hole (4-4) the constantly circulation that refluxes; In the time that driven shaft pivoted frame (2) rotates, through gear mechanism (3) transmission, oil hydraulic pump (4-1) high speed rotating, liquid flow damping increases, oil hydraulic cylinder (4-2) increases with the Pressure Drop that damping hole (4-7) causes, the retardation pressure of the platen (5-1) of piston (4-3) connection is increased, force the driven shaft pivoted frame (2) engaging with driven disc (5-1) to retrain braking.Take above technological scheme, driven shaft pivoted frame (2) is subject to double constraints and the braking of the liquid flow damping of hydraulic system (4) and the frictional damping of break (5) simultaneously by gear mechanism (3) transmission, the braking force of these two kinds of different modes checks and balance, common constraint axis body (2-1), if the coupling arrangement of axis body (2-1) accelerates suddenly, load, break (5) braking brake immediately, after buffering, all can automatically recover to set slow effect, more there will not be the phenomenon of gravity accleration, slow performance agility, stable, by fine setting damping hole (4-4), can obtain different speed limit effects, compact structure, easy and simple to handle.
It will be appreciated that, described hydraulic medium (4-4), wherein, having applied a kind of automobile automatic drive liquid (ATF) lubricates and transferring energy, this dedicated liquid is applicable to the automatic transmission of BMW, Benz Cars, be one of the most complicated full-service fluid, serviceability temperature scope is-40～170 DEG C, and performance requirement is very comprehensive.For purposes of the invention, driven Conversion of Energy is dissipated, reduce mechanical energy, liquid properties of flow is very important, ATF keeps constant at operating temperature range coefficient of internal friction, causes hydraulic system (4) no matter climatic environment, use the conditions such as frequent, working strength, use height can guarantee that using effect stablizes.
Embodiment 2
As shown in Figure 3, an embodiment of the invention comprise housing (1), driven shaft pivoted frame (2), gear mechanism (3), hydraulic system (4) and break (5) equally, and described break (5) comprises platen (5-1) and driven disc (5-2); Described hydraulic system (4), wherein, comprise oil hydraulic pump (4-1), oil hydraulic cylinder (4-2), piston (4-3) and hydraulic medium (4-4), oil hydraulic cylinder (4-2) is located at the rear end of oil hydraulic pump (4-1), described hydraulic pressure pump intake is provided with oil purifier (4-6), and the passage that leads to oil hydraulic cylinder (4-2) is provided with one-way valve (4-5); The inner chamber of described oil hydraulic cylinder (4-2) is provided with adjustable damping hole (4-7), and the outer rim of described piston is connected with the platen (5-2) of break (5); Described hydraulic medium is loaded in housing (1); Described gear mechanism (3) comprises external toothing (3-3), central gear (3-1), planet wheel (3-2), planet carrier (3-4); Described central gear (3-1) connects with oil hydraulic pump (4-2) driven shaft; Described external toothing (3-3) is fixed on the front end of oil hydraulic pump (4-1); Described planet carrier (3-4) connects driven shaft pivoted frame (2) and engages with driven disc (5-1).
Embodiment 1 and embodiment's 2 difference is the mode of structure of gear mechanism, an external toothing (3-3) is fixed, planet carrier (3-4) is arranged on driven shaft pivoted frame (2) and above engages with driven disc (5-2), a planet carrier (3-4) is fixed, external toothing (3-3) is arranged on moving frame (2) and engages with driven disc (5-2), working principle is identical, and just the velocity ratio of gear mechanism (3) is a little different.
The present invention provides a kind of preferred version of reciprocal retarder for fall-slowing device for rescuing from high building, and described oil hydraulic pump (4-1) comprises two-way plunger pump, string pendulum pump and gear pump, no matter oil hydraulic pump forward or reverse, but the direction of output can not change.
Need to understand, although enumerated the mode of two kinds of planetary gear train structures, the present invention is not limited to this, and those skilled in the art can, with reference to legend, require extremely mode of structure of coupling train according to speed limit.
For example, driven shaft pivoted frame (2) and gear mechanism (3) are linked by the drag device of clutch and lift, separately car is delayed and falls speed-limiting protection according to the embodiment of the present invention, solve the elevator that current building is used, there is hypervelocity in the elevation and subsidence mechanicals such as the cage of using in mine, disconnected rope and electrical open, while catching fire etc. fault very serious, car, cage can not fall or hovering, can ensure that the slow lowermost layer that drops to of the personal security being trapped in car exports escape, the dangerous crisis of avoiding trapped personnel to wait for rescue aloft, strengthen the safety guarantee of current elevation and subsidence mechanical, realize safe escape and the strong novel system of pacifying of science and technology, it is a scientific and technical innovation of effectively taking precautions against and contain security incident.
Also it will be appreciated that; the present invention can be widely used in the slow technical field of pure machinery; relate in particular to the slow technical field of falling of elevation and subsidence mechanical; more than describe and be only example; under the premise without departing from the principles of the invention, those skilled in the art can make various interpolations, delete, revise or combine and not depart from the scheme that the present invention protects.
Claims (8)
1. a retarder, comprise housing, driven shaft pivoted frame, gear mechanism, hydraulic system and break, it is characterized in that: driven shaft pivoted frame engages with break and hydraulic system respectively by gear mechanism, and driven shaft pivoted frame, gear mechanism, hydraulic system and break are loaded in housing.
2. a kind of retarder according to claim 1, wherein, described break comprises platen and driven disc, it is characterized in that: driven disc engages with driven shaft pivoted frame, platen connecting fluid pressing system.
3. a kind of retarder according to claim 1, wherein, described driven shaft pivoted frame comprises axis body and driven pivoted frame, it is characterized in that: axis body connects driven pivoted frame.
4. a kind of retarder according to claim 1, wherein, described hydraulic system comprises oil hydraulic pump, oil hydraulic cylinder, piston, oil purifier and hydraulic medium, it is characterized in that: described oil hydraulic pump front end connects with gear mechanism, rear end connecting fluid cylinder pressure; Described oil purifier is located at the oiler of oil hydraulic pump; Described oil hydraulic cylinder comprises damping hole and one-way valve, and one-way valve is located at the ingress that oil hydraulic pump leads to oil hydraulic cylinder, and the inner chamber that damping hole is arranged on oil hydraulic cylinder communicates with housing; Described piston outer rim is connected with the platen of break; Described hydraulic medium is loaded in housing, and when work, hydraulic medium stream first enters oil hydraulic cylinder through oil hydraulic pump and one-way valve again through oil purifier, finally flows back to continuous circulation through damping hole.
5. a kind of retarder according to claim 1, wherein, described gear mechanism comprises the planet carrier of all planet wheel rotating shafts of external toothing, central gear, planet wheel and connection, it is characterized in that: central gear connects hydraulic system, external toothing is fixed on the front end of hydraulic system, and planet carrier is arranged on driven shaft pivoted frame and engages with break.
6. a kind of retarder according to claim 1, wherein, described gear mechanism comprises external toothing, central gear, planet wheel and planet carrier, it is characterized in that: central gear connects hydraulic system, planet carrier is fixed on the front end of hydraulic system, and external toothing is arranged on driven shaft pivoted frame and engages with break.
7. a kind of retarder according to claim 1, wherein, described housing comprises gland seal device, fixing bolt and oilhole bolt, it is characterized in that: described gland seal device mates sealing with driven shaft pivoted frame.
8. according to a kind of retarder described in claim 4-6, wherein, described oil hydraulic pump comprises string pendulum pump, plunger pump and gear pump, it is characterized in that: when the live axle clockwise and anticlockwise of oil hydraulic pump, its oil outlet and oiler are constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282210.XA CN103994161A (en) | 2013-06-28 | 2013-06-28 | Retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310282210.XA CN103994161A (en) | 2013-06-28 | 2013-06-28 | Retarder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103994161A true CN103994161A (en) | 2014-08-20 |
Family
ID=51308433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310282210.XA Pending CN103994161A (en) | 2013-06-28 | 2013-06-28 | Retarder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103994161A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106586788A (en) * | 2015-12-31 | 2017-04-26 | 李国栋 | Conversion device for vertically-lifting elevator and escape capsule |
| WO2017177858A1 (en) * | 2016-04-13 | 2017-10-19 | 曾义波 | Liquid damping type braking system |
| CN110284912A (en) * | 2019-07-20 | 2019-09-27 | 山西能源学院 | A kind of hydraulic prop for mine is from gravity pressure relief buffering mechanism |
| CN115258884A (en) * | 2022-07-04 | 2022-11-01 | 江苏省方正电梯有限公司 | Hoistway arrangement structure of machine room-less elevator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098198A (en) * | 1973-12-29 | 1975-08-04 | ||
| US4493396A (en) * | 1983-03-14 | 1985-01-15 | V Joseph Borgia | Winch for safely lowering a person at a controlled rate |
| US20040159494A1 (en) * | 2003-02-14 | 2004-08-19 | Ataul Haq | Automatic personnel lowering system for high-rise buildings |
| CN2925517Y (en) * | 2006-05-23 | 2007-07-25 | 吴之忠 | Safety lifesaving apparatus |
| CN201469925U (en) * | 2009-08-26 | 2010-05-19 | 林谊忠 | Hydraulic automatic speed limitting device |
-
2013
- 2013-06-28 CN CN201310282210.XA patent/CN103994161A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5098198A (en) * | 1973-12-29 | 1975-08-04 | ||
| US4493396A (en) * | 1983-03-14 | 1985-01-15 | V Joseph Borgia | Winch for safely lowering a person at a controlled rate |
| US20040159494A1 (en) * | 2003-02-14 | 2004-08-19 | Ataul Haq | Automatic personnel lowering system for high-rise buildings |
| CN2925517Y (en) * | 2006-05-23 | 2007-07-25 | 吴之忠 | Safety lifesaving apparatus |
| CN201469925U (en) * | 2009-08-26 | 2010-05-19 | 林谊忠 | Hydraulic automatic speed limitting device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106586788A (en) * | 2015-12-31 | 2017-04-26 | 李国栋 | Conversion device for vertically-lifting elevator and escape capsule |
| WO2017177858A1 (en) * | 2016-04-13 | 2017-10-19 | 曾义波 | Liquid damping type braking system |
| CN110284912A (en) * | 2019-07-20 | 2019-09-27 | 山西能源学院 | A kind of hydraulic prop for mine is from gravity pressure relief buffering mechanism |
| CN110284912B (en) * | 2019-07-20 | 2020-08-25 | 山西能源学院 | Self-gravity pressure relief buffer device for mining hydraulic prop |
| CN115258884A (en) * | 2022-07-04 | 2022-11-01 | 江苏省方正电梯有限公司 | Hoistway arrangement structure of machine room-less elevator |
| CN115258884B (en) * | 2022-07-04 | 2024-04-16 | 江苏省方正电梯有限公司 | Machine-room-free elevator system |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20140820 |