CN105915131B - The resistance adjustment device of motion is at the uniform velocity slid for realizing - Google Patents
The resistance adjustment device of motion is at the uniform velocity slid for realizing Download PDFInfo
- Publication number
- CN105915131B CN105915131B CN201610274912.7A CN201610274912A CN105915131B CN 105915131 B CN105915131 B CN 105915131B CN 201610274912 A CN201610274912 A CN 201610274912A CN 105915131 B CN105915131 B CN 105915131B
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- China
- Prior art keywords
- adjustment device
- slide bar
- resistance adjustment
- uniform velocity
- wheel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
- H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
- H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
- H02P7/22—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using multi-position switch, e.g. drum, controlling motor circuit by means of pilot-motor-operated multi-position switch or pilot-motor-operated variable resistance
Abstract
The present invention discloses a kind of resistance adjustment device, including indicator of weighing, adjustable electric resistor, guide rail, guide wheel, the second slide bar and the first slide bar.The present apparatus is simple in construction, convenient to carry out.With the speed of passive mode control downslide object, realize and slid in a manner of uniform motion.
Description
Technical field
It is especially a kind of to be used to realize the resistance adjustment device at the uniform velocity sliding motion the present invention relates to a kind of adjusting means.
Background technology
Under motor effect, object realizes that the uniform motion of horizontality is easily realized.If object is sliding or fallen
Cheng Shi, acted on by acceleration of gravity, the speed of moving object is being continuously increased.When the main body for being subjected to dropping process is personal
When, with the increase of speed, human body is by the pressure from environment, or even causes to have difficulty in breathing and be unfavorable for taking reasonably
Escape posture.Therefore, it is necessary to use motor to control the speed of dropping process, disposed beneficial to escape.
The content of the invention
Present invention aims to overcome that above-mentioned the problem of being previously mentioned, there is provided a kind of to realize the resistance adjustment at the uniform velocity sliding motion
Device, the movement velocity in dropping process is controlled, improve escape environment.
The technical solution adopted by the present invention is as follows：
A kind of resistance adjustment device, including：
Weigh indicator, it is acted on by object, shows the weight of object；
Adjustable electric resistor, for adjusting resistance value；
Guide rail, guide wheel is set thereon；
Guide wheel, it includes wheel body and wheel shaft；
Second slide bar, it is arranged on wheel shaft, and both ends are connected with upper hairspring and lower hairspring respectively；
First slide bar, it is arranged on wheel shaft, and one end is connected with indicator of weighing；
First slide bar and the orthogonal thereto setting of the second slide bar, and it is non-coplanar.
Guide rail formulaIdentified curve, wherein G are weight, and R is resistance value, and n is downslide speed, Ce
For motor power coefficient, Φ is excitation caused by motor permanent magnet, and k is constant coefficient, and it is by motor torque and weight of object
Determine.
The resistance adjustment device of the present invention, is installed on landing escape apparatus, can control the speed of downslide object, realizes with the uniform velocity
Motion mode slides.
The beneficial effects of the invention are as follows：It is simple in construction, it is convenient to carry out.For escape apparatus, it can be controlled and glided with passive mode
The speed of object, realize and slid in a manner of uniform motion.
Brief description of the drawings
Fig. 1 is motor and load characteristic figure；
The structural representation of Fig. 2 resistance adjustment devices of the present invention；
Fig. 3 is the structural representation of guide wheel of the present invention；
Fig. 4 is the structural representation of another angle of resistance adjustment device of the present invention；
Fig. 5 is to realize the electrical schematic diagram at the uniform velocity to glide.
Embodiment
Referring to Fig. 2~4, a kind of resistance adjustment device of the present invention, including indicator 1 of weighing, adjustable electric resistor 2, guide rail 3,
Guide wheel 4, the first slide bar 5, the second slide bar 6, upper hairspring 7 and lower hairspring 8.
Guide wheel 4 slides on guide rail 3, including wheel body 41 and wheel shaft 42.First slide bar 5 is arranged on wheel shaft 42, one end with
Indicator of weighing 1 connects.Indicator of weighing 1 is acted on by object, shows the weight of object.
It is arranged on wheel shaft 42 second slide bar 6, and both ends are connected with upper hairspring 7 and lower hairspring 8 respectively, the first slide bar and
The orthogonal thereto setting of two slide bars, and it is non-coplanar.Lower hairspring 8 is arranged in adjustable electric resistor 2.
Acted on by object, indicator of weighing 1 shows the weight of object so that the first slide bar 5 vertically moves, and drives guide wheel
4 slide on guide rail 3, cause the occurred level of the second slide bar 6 to move, and lower hairspring 8 determines resistance value R in adjustable electric resistor 2.
Fig. 5 is to realize the electrical schematic diagram at the uniform velocity to glide, and armature rotor is connected with switch, adjustable resistance R external circuit, armature
Resistance R0Very little, it can ignore.Then dc motor meets dynamic braking characteristic when gliding, as shown in Figure 4, following slip velocity
Degree is defined as unified value-n, then mechanical property is represented by：
Wherein, I is armature supply, CeIt is motor power coefficient, Φ is excitation caused by motor permanent magnet.
Due to CeIt is determined with Φ, rotating speed is that direction is downward, and is certain value, and negative sign is removed, then (1) formula can be written as
IR=CeΦn (2)
According to Fig. 1, when the librarian use escape apparatus of different weight, rotating speed requires constant, and different body weight
People, if body weight is G, the torque of formation is T, then has
T ∝ G=kG
Wherein, k is constant coefficient, and T=CeΦI
Then (2) formula can be written as
G and R is inversely prroportional relationship, i.e.,：When G changes are big, adjustable resistance R diminishes；On the contrary, when G becomes small, adjustable resistance R
Become big.As long as i.e. the electric control box of motor can be constant according to the K values of setting, according to G value sizes, self adjusting resistance is
Can.
Claims (4)
1. a kind of resistance adjustment device, it is characterized in that including：
Weigh indicator, it is acted on by object, shows the weight of object；
Adjustable electric resistor, for adjusting resistance value；
Guide rail, guide wheel is set thereon；
Guide wheel, it includes wheel body and wheel shaft；
Second slide bar, it is arranged on wheel shaft, and both ends are connected with upper hairspring and lower hairspring respectively；
First slide bar, it is arranged on wheel shaft, and one end is connected with indicator of weighing；
Guide rail formulaIdentified curve, wherein G are weight, and R is resistance value, and n is downslide speed, CeTo be electronic
Electromechanical emf coefficient, Φ are excitation caused by motor permanent magnet, and k is constant coefficient.
2. resistance adjustment device according to claim 1, it is characterized in that the first described slide bar and the second described slide bar
Orthogonal thereto setting, and it is non-coplanar.
3. resistance adjustment device according to claim 1, which is used to realize, at the uniform velocity slides motion.
4. one kind slides escape apparatus, it is characterized in that including the resistance adjustment device described in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610274912.7A CN105915131B (en) | 2016-04-21 | 2016-04-21 | The resistance adjustment device of motion is at the uniform velocity slid for realizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610274912.7A CN105915131B (en) | 2016-04-21 | 2016-04-21 | The resistance adjustment device of motion is at the uniform velocity slid for realizing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105915131A CN105915131A (en) | 2016-08-31 |
| CN105915131B true CN105915131B (en) | 2018-03-30 |
Family
ID=56753166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610274912.7A Active CN105915131B (en) | 2016-04-21 | 2016-04-21 | The resistance adjustment device of motion is at the uniform velocity slid for realizing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105915131B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293126A (en) * | 2008-06-26 | 2008-10-29 | 四川宁江精密工业有限责任公司 | Mobile reciprocating live-saving equipment |
| CN101575063A (en) * | 2009-03-31 | 2009-11-11 | 赵长飞 | Passive-potential energy speed-controlling escape elevator for civil high-rise buildings |
| CN102166392A (en) * | 2011-04-18 | 2011-08-31 | 南昌大学 | High-attitude intelligent life saving device |
| CN102176113A (en) * | 2011-02-11 | 2011-09-07 | 沈金洲 | Automatic speed-controlling downhill device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1164342C (en) * | 2001-12-11 | 2004-09-01 | 白孝林 | Speed-adjustable life-saving apparatus |
-
2016
- 2016-04-21 CN CN201610274912.7A patent/CN105915131B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293126A (en) * | 2008-06-26 | 2008-10-29 | 四川宁江精密工业有限责任公司 | Mobile reciprocating live-saving equipment |
| CN101575063A (en) * | 2009-03-31 | 2009-11-11 | 赵长飞 | Passive-potential energy speed-controlling escape elevator for civil high-rise buildings |
| CN102176113A (en) * | 2011-02-11 | 2011-09-07 | 沈金洲 | Automatic speed-controlling downhill device |
| CN102166392A (en) * | 2011-04-18 | 2011-08-31 | 南昌大学 | High-attitude intelligent life saving device |
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| Publication number | Publication date |
|---|---|
| CN105915131A (en) | 2016-08-31 |
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