CN104632275A - Uphill and downhill winch upper gradient change point grading gradient change promoting design method - Google Patents
Uphill and downhill winch upper gradient change point grading gradient change promoting design method Download PDFInfo
- Publication number
- CN104632275A CN104632275A CN201410759629.4A CN201410759629A CN104632275A CN 104632275 A CN104632275 A CN 104632275A CN 201410759629 A CN201410759629 A CN 201410759629A CN 104632275 A CN104632275 A CN 104632275A
- Authority
- CN
- China
- Prior art keywords
- slope
- downhill
- degrees
- gradient
- gradient change
- Prior art date
- 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.)
- Pending
Links
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
Provided is an uphill and downhill winch upper gradient change point grading gradient change promoting design method. When the downhill gradient alpha is larger than 8 degrees and smaller than or equal to 15 degrees, secondary gradient change is carried out, construction is carried out by 6 degrees downhill, a slope is 6-8 m longer than a flat car and then construction is carried out by 15 degrees downhill. When the downhill gradient alpha is larger than 15 degrees and small than or equal to 25 degrees, third-time gradient change is carried out, construction is carried out by 6 degrees downhill, and the slope is 6-8 m longer than the flat car. The construction gradient is increased by 9 degrees, the downhill gradient reaches 15 degrees, and the slope is 6-8 m longer than the flat car. Finally, the construction gradient is increased by 10 degrees, and the designed gradient changes are achieved. By means of the scheme, due to multi-stage gradient change, instant impact caused to a steel wire rope when a small tramcar is at the gradient change point is reduced, damage to the steel wire rope is reduced, the accidents, likely to happen at the upper gradient change point, that the wire is broken and the tramcar runs are solved, and safety production of a mine is guaranteed.
Description
Technical field
The present invention relates to and a kind of become slope method for designing, particularly relate to knick point classification on lifting of winch that one goes down the hill and become slope method for designing.
Background technology
When underground coal mine transports, due to the dipping and heaving in coal seam, cause the digging laneway gradient to change with the change of the coal seam gradient, add underground transportation lifting of winch link.The disconnected rope in inclined gallery, down-hole derailing accident mostly occurs at knick point place according to statistics, mine car by gate top slowly in knick point running, wire rope is stressed very little, when mine car arrival knick point starts to run downwards, the deadweight of mine car makes mine car rapidly along track glide downwards, and now wire rope is stressed increases instantaneously, and the momentum of mine car to wire rope is 3-6 times of normal hoisting pulling force, pulling force suffered by wire rope has exceeded the maximum load-carrying capacity of wire rope, therefore causes and resolves rope derailing accident.
Summary of the invention
The object of this invention is to provide a kind of on knick point classification on lifting of winch of going down the hill become slope method for designing and can reduce the moment impact that mine car causes wire rope at knick point place in multistage change slope, weaken the destruction to wire rope, solve the incident disconnected rope derailing accident in knick point place, ensure the safety in production of mine.
For achieving the above object, the technical solution used in the present invention is:
Knick point classification on lifting of winch that one is gone down the hill becomes slope method for designing, comprise winch, winch is connected with wire rope, during descending: when downhill slope 8 ° of < α≤15 °, take secondary to become slope, first construct 6 ° at knick point one, when haul distance is greater than flat car length 6-8m, carry out second time at knick point two and become slope, the construction gradient increases (α-6) °, and current downhill slope reaches α ° and goes down the hill.
When downhill slope 15 ° of < α≤25 °, take to become slope three times, first construct 6 ° at knick point three, when haul distance is greater than flat car length 6-8m, carries out second time at knick point four and become slope, the construction gradient increases by 9 °, current downhill slope reaches 15 ° and goes down the hill, and when haul distance is greater than flat car length 6-8m, carries out third time become slope at knick point five, the construction gradient increases (α-15) °, and current downhill slope reaches α ° and goes down the hill.
The moment impact that this programme is caused wire rope at knick point place by multistage change slope reduction mine car, weakens the destruction to wire rope, solves the incident disconnected rope derailing accident in knick point place, ensure the safety in production of mine.
Accompanying drawing explanation
Fig. 1 is the structural representation that the present invention becomes slope for twice.
Fig. 2 is the structural representation that the present invention becomes slope for three times.
Fig. 3 is the stress figure of winch of the present invention.
In accompanying drawing: 1, knick point one; 2, knick point two; 3, knick point three; 4, knick point four; 5, knick point five; 6, wire rope; 7, winch.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described:
The present invention is as shown in Figure 1:
Knick point classification on lifting of winch that one is gone down the hill becomes slope method for designing, comprise winch 7, winch 7 is connected with wire rope 6, during descending: when downhill slope 8 ° of < α≤15 °, take secondary to become slope, first construct 6 ° at knick point 1, when haul distance is greater than flat car length 6-8m, carry out second time at knick point 22 and become slope, the construction gradient increases (α-6) °, and current downhill slope reaches α ° and goes down the hill.
The present invention is as shown in Figure 2:
When downhill slope 15 ° of < α≤25 °, take to become slope three times, first construct at knick point 33
Go down the hill for 6 °, when haul distance is greater than flat car length 6-8m, carry out second time at knick point 44 and become slope, the construction gradient increases by 9 °, current downhill slope reaches 15 ° and goes down the hill, and when haul distance is greater than flat car length 6-8m, carries out third time become slope at knick point 55, the construction gradient increases (α-15) °, and current downhill slope reaches α ° and goes down the hill.
The present invention is as shown in Figure 3:
Suppose that the quality of underground transportation object (comprising flat car) is mKg, the roadway slope change point gradient is
θ °, the friction factor in track and transport flat panel workshop is μ (0.015), and flat car is run downwards by static above knick point, and the transient acceleration of object is α.
Transporting objects wire rope in gate top passing process is stressed hardly, when object arrival knick point is downward, deadweight due to object produces sliding force instantaneously makes wire rope moment stressed, the stressed size of wire rope is f=mgsin θ, gradient θ value larger wire rope moment is stressed larger, and the acceleration of downslide is larger.
During θ=6 °, the stressed f=mgsin6 of wire rope °=0.105mg
Transient acceleration α=g (sin6 ° of-μ cos6 °)=0.889 m/s
2
During θ=25 °, the stressed f=mgsin25 of wire rope °=0.423mg
Transient acceleration α=g (sin25 ° of-μ cos25 °)=4.01 m/s
2
Namely become slope into when 25 ° wire rope moment stressed be become slope be 4.03 times when 6 °, become slope be the acceleration of object when 25 ° be become 6 °, slope time 4.51 times.Therefore, on lifting of winch of above going down the hill knick point by gallery directly become 25 ° go down the hill time easily cause wire rope moment tension force to be greater than the Fracture Force of wire rope at heavy grade knick point, cause disconnected rope derailing accident.
Classification is adopted to become slope technology, first change 6 ° is gone down the hill, then increase by 9 °, the last change slope method for designing increasing by 10 ° again, stressed and the object gliding acceleration of wire rope increases all gradually, the tension force of wire rope can not be greater than Fracture Force, reduce the generation resolving rope derailing accident, facilitate safety in production.
Embodiment:
1, construction technology is simplified.Go-downhill roadway is constructed, and becomes slope method for designing by classification, solves driving wide-angle and to go down the hill the problem of construction technology difficulty.
2, transportation safety is protected.At the transit link of each knick point, by suitably reducing the angle becoming slope, reducing the instant impact of haulage device to wire rope, the derailing accident of In transit is effectively contained, ensured the safety in production of mine from design source.
(2) Economic and Efficiency Analysis
Reduce more change steel rope expense.Before not adopting classification to become slope technology, a work plane need change twice wire rope from driving to coal mining manufacturing process.After adopting classification to become slope technology, by reducing the impact force of knick point wire rope, can no longer frequent more change steel rope.With 3
on1201 plane materiel lanes are example, and endless rope winch is 75kw, and fortune lane uses rope capacity to be 700m × 2, wirerope diameter Φ 26mm, every meter of wire rope weight is 2.5kg, and wire rope price is 9 yuan/m, and each work plane can be saved and change steel wire expense is 700 × 2 × 2.5 × 9 × 2=63000 unit; If mine has 5 getting working faces to use endless rope winch every year, then can save the whole year and change steel wire expense is 63000 × 5=315000 unit.
In sum, on knick point on winch of going down the hill adopt classification to become slope method for designing effectively to reduce more change steel rope expense, stop to cause transport derailing accident because wire rope is aging, ensured the safety in production of mine, achieved good Social benefit and economic benefit.
Embodiment recited above is only be described the preferred embodiment of the present invention; not design of the present invention and protection domain are limited; under the prerequisite not departing from design concept of the present invention; the various modification that in this area, common engineers and technicians make technical scheme of the present invention and improvement, all should fall into protection scope of the present invention.
Claims (1)
1. knick point classification on lifting of winch of a kind going down the hill becomes slope method for designing; comprise winch (7) it is characterized in that: winch (7) is connected with wire rope (6); during descending: when downhill slope 8 ° of < α≤15 °; secondary is taked to become slope; first construct 6 ° at knick point one (1), when haul distance is greater than flat car length 6-8m, carries out second time at knick point two (2) and become slope; the construction gradient increases (α-6) °, and current downhill slope reaches α ° and goes down the hill;
when downhill slope 15 ° of < α≤25 °, take to become slope three times, first construct 6 ° at knick point three (3), when haul distance is greater than flat car length 6-8m, carries out second time at knick point four (4) and become slope, the construction gradient increases by 9 °, current downhill slope reaches 15 ° and goes down the hill, and when haul distance is greater than flat car length 6-8m, carries out third time become slope at knick point five (5), the construction gradient increases (α-15) °, and current downhill slope reaches α ° and goes down the hill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759629.4A CN104632275A (en) | 2014-12-12 | 2014-12-12 | Uphill and downhill winch upper gradient change point grading gradient change promoting design method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410759629.4A CN104632275A (en) | 2014-12-12 | 2014-12-12 | Uphill and downhill winch upper gradient change point grading gradient change promoting design method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104632275A true CN104632275A (en) | 2015-05-20 |
Family
ID=53211454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410759629.4A Pending CN104632275A (en) | 2014-12-12 | 2014-12-12 | Uphill and downhill winch upper gradient change point grading gradient change promoting design method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104632275A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881929A (en) * | 2017-11-06 | 2018-04-06 | 西南交通大学 | The multistage power consumption flexible protection systems of parallel connection and its appraisal procedure of a kind of rapid evaluation disaster impact grade |
| CN113417693A (en) * | 2021-07-13 | 2021-09-21 | 晋能控股煤业集团同忻煤矿山西有限公司 | Safe migration method for steep slope below mine fully mechanized mining equipment train |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU891930A2 (en) * | 1980-04-03 | 1981-12-23 | Днепропетровский Филиал Всесоюзного Научно-Исследовательского И Проектно-Конструкторского Института Горнорудного Машиностроения | Arrangement for working soft rock by the caving-in method |
| CN2079592U (en) * | 1990-09-26 | 1991-06-26 | 营城煤矿机电厂 | Anti-running safety device for inclined shaft |
| CN101205041A (en) * | 2006-12-22 | 2008-06-25 | 田玉杲 | Underground orbit mine car running system |
| CN203053721U (en) * | 2012-12-24 | 2013-07-10 | 沈阳北方重矿机械有限公司 | Coal rock heading machine large-gradient testing stand |
-
2014
- 2014-12-12 CN CN201410759629.4A patent/CN104632275A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU891930A2 (en) * | 1980-04-03 | 1981-12-23 | Днепропетровский Филиал Всесоюзного Научно-Исследовательского И Проектно-Конструкторского Института Горнорудного Машиностроения | Arrangement for working soft rock by the caving-in method |
| CN2079592U (en) * | 1990-09-26 | 1991-06-26 | 营城煤矿机电厂 | Anti-running safety device for inclined shaft |
| CN101205041A (en) * | 2006-12-22 | 2008-06-25 | 田玉杲 | Underground orbit mine car running system |
| CN203053721U (en) * | 2012-12-24 | 2013-07-10 | 沈阳北方重矿机械有限公司 | Coal rock heading machine large-gradient testing stand |
Non-Patent Citations (1)
| Title |
|---|
| 方海秋: "关于多变坡斜坡道设计的意见", 《化工矿山技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107881929A (en) * | 2017-11-06 | 2018-04-06 | 西南交通大学 | The multistage power consumption flexible protection systems of parallel connection and its appraisal procedure of a kind of rapid evaluation disaster impact grade |
| CN107881929B (en) * | 2017-11-06 | 2023-07-14 | 西南交通大学 | Method for rapidly evaluating disaster impact grade |
| CN113417693A (en) * | 2021-07-13 | 2021-09-21 | 晋能控股煤业集团同忻煤矿山西有限公司 | Safe migration method for steep slope below mine fully mechanized mining equipment train |
| CN113417693B (en) * | 2021-07-13 | 2023-06-13 | 晋能控股煤业集团同忻煤矿山西有限公司 | Safety migration method for mining fully-mechanized mining equipment under steep slope |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102275799B (en) | Mine elevator | |
| CN208857605U (en) | A kind of mine rail multi-function switch and its railway points system | |
| CN103362546A (en) | Material transporting device for inclined shaft and material transporting method thereof | |
| CN104632275A (en) | Uphill and downhill winch upper gradient change point grading gradient change promoting design method | |
| CN204162341U (en) | A kind of position limitation protection structure of endless rope winch tightening device | |
| CN203321581U (en) | Material conveying device for inclined shaft | |
| CN103523667A (en) | Mining steel rope traction monorail crane transportation system and transportation method thereof | |
| CN203667819U (en) | Large-dip angle lane monorail crane transporting device | |
| CN106351133B (en) | A kind of continuous Dumpage type method for dismounting of multispan elevated bridge | |
| CN203246992U (en) | Inclined-mine forking uncoupling field | |
| CN201943710U (en) | Supporting device applied to narrow coal pillar entry retaining | |
| CN205387935U (en) | Lifting bracket of mining machine | |
| CN204077696U (en) | The man car of inclined gallery general rail band wedge-type brake equipment | |
| CN107675570A (en) | High mountain abrupt slope on-highway motor vehicle automatic quick height elevator | |
| CN205741792U (en) | Track passage formula is broken duct device | |
| CN204198214U (en) | With the lane inner orbit car elevator system of guide piece of uncoupling | |
| CN103264709B (en) | Underground mine automatic tramcar stopper for inclined shaft and inclined shaft automatic car stopping system | |
| CN208360186U (en) | A kind of mine elevator diclinic ramp promotes that mine car is automatically-unhooked and separator | |
| CN202071831U (en) | Conveying device for workers in pits of coal mines | |
| CN204643515U (en) | Mining pusher gear | |
| CN202953446U (en) | Bucket chain stopper of bucket type lifter | |
| CN204236489U (en) | A kind of mining instantaneous stopping device | |
| CN104163183A (en) | Inclined drift common rail type inclined shaft man car with wedged braking devices | |
| CN204265351U (en) | A kind of inclined gallery auxiliary trackless transport device | |
| CN201002905Y (en) | Inclined alley lifting automatic machinery locking stopping device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150520 |
|
| RJ01 | Rejection of invention patent application after publication |