CN102305276A - Shaft-mounted self-braking quasi-planetary speed reducer for mine hoist - Google Patents
Shaft-mounted self-braking quasi-planetary speed reducer for mine hoist Download PDFInfo
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- CN102305276A CN102305276A CN201110062238A CN201110062238A CN102305276A CN 102305276 A CN102305276 A CN 102305276A CN 201110062238 A CN201110062238 A CN 201110062238A CN 201110062238 A CN201110062238 A CN 201110062238A CN 102305276 A CN102305276 A CN 102305276A
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Abstract
The invention relates to the technical field of mechanical speed reduction, and discloses a shaft-mounted self-braking quasi-planetary speed reducer for a mine hoist. The shaft-mounted self-braking quasi-planetary speed reducer is characterized by consisting of a braking piece and an NW type quasi-planetary transmission piece, wherein the braking piece comprises an input shaft, a driving V-shaped groove disc, a driven V-shaped groove disc, a steel ball, a friction pair and a spring; the friction pair comprises an inner cone and a conical disc; the conical disc and a driven disc are in sliding fit with a spline of a sun wheel shaft; two ends of the spring lean against a shaft shoulder of a sun wheel and the end face of the conical disc tightly, so that the friction surface is compacted; medium and high-speed components of the quasi-planetary transmission piece consist of the sun wheel, a first planet wheel and a machine frame; the planet wheel is connected to a low-speed planet wheel shaft; a low-speed component consists of a planet wheel shaft, a second planet wheel and an inner gear ring; the planet wheels are distributed on the machine frame uniformly; an output shaft is a hollow shaft, a tensioning screw is arranged in the output shaft, and two sides of the output shaft are supported on inner holes of a machine base and the machine frame by bearings; and the machine base is connected with a torque force support arm. The shaft-mounted self-braking quasi-planetary speed reducer has the advantages that sparks are prevented during braking, the using performance is reliable; a structure is simple, the machining processing property is high, and the manufacturing cost is 30 to 40 percent of that of the prior art; and the installation space is reduced.
Description
Technical field the present invention relates to the mechanical reduction technical field, the shaft-mounted self-retention quasi-planet of a kind of mine hoist retarder.
It is the band brake retarder that background technique mine hoist, various hoist need most, and so background technique Q series dead axle and ZK series planetary reducer must be prepared moving motor or adorn break in addition, and this is a big blank of modern retarder technical field.
The summary of the invention inventor aims at setting up serial brake retarder, adapting to industrial department needs such as mine, iron and steel and metallurgy, thereby fills up the blank of China's retarder technical field, the shaft-mounted self-retention quasi-planet of particularly a kind of mine hoist retarder.
The power dividing of technological scheme Gear Planet Transmission, stable drive and bearing capacity are big, are state-of-the-art drive technologies.Discover that conscientiously reduction case not only had a high mechanical properties but also large space is arranged, so in the casing break to be installed be valuable innovation.
(A) braking technology scheme: be made up of steel ball V-type groove mechanism, friction pair and pressure spring, wherein: steel ball V-type groove mechanism is the mechanical stepless speed changes vitals, comprises driving and driven V-type slotted disk and steel ball placed in the middle, himself has clutch and coupling two functions.Its working principle is: when energising, the V-type groove face of active V-type slotted disk produces positive pressure to steel ball on the input shaft: its axial thrust load promotes driven V-type slotted disk, so friction pair separates, braking moment disappears; Its circumferential component is in order to drive the output shaft that connects with driven V-type slotted disk, output work done after slowing down; The input shaft stop rotates during outage, and the axial force of pressure spring makes friction pair combine to produce braking moment rapidly, so mechanism promptly is in stable braking state.
(B) NW type quasi-planet comprises the high, low speed level; Its high speed level is formed by being contained in sun gear on the sun wheel shaft, planet wheel and frame; Planet wheel is connected on the slow speed turbine stage planet wheel shaft; Slow speed turbine stage is made up of planet wheel shaft, planet wheel and ring gear; Planet wheel shaft is distributed on the frame, and ring gear and short cylinder spline cunning are joined, and short cylinder connects with the output shaft disk; Output shaft is a hollow shaft, is bearing in support and frame endoporus respectively with two bearings; Inject stretching screw from input end, screw rod passes input shaft, sun wheel shaft according to this, injects the output shaft endoporus, relies on the aperture supporting on the output shaft blind hole end former.Support connects the torsion support arm to be prevented to rotate.The structural feature of NW type quasi-planet transmission is that planet carrier is fixed, and sees into the volume 3.14-421 of big elder generation " mechanical design handbook " page or leaf Figure 14-5-38.
Beneficial effect: its creativeness of the background technique that the present invention compares is:
(1) since brake component be contained in the retarder body end cap, thereby when braking no-spark, usability is reliable;
(2) simple in structure, the process for machining performance is good, manufacture cost is about prior art 30-40%;
(3) be suspended on the lift transmission shaft owing to whole retarder, thereby reduce installing space greatly.
Description of drawings Fig. 1, embodiment of the invention structural representation
Embodiment encyclopaedizes the present invention below in conjunction with accompanying drawing:
With reference to Fig. 1. the shaft-mounted self-retention quasi-planet of a kind of mine hoist retarder is characterized in that: forms by brake component and NW type quasi-planet driving component, wherein:
(A) brake component is contained in frame (2) and end face upper link end cap (11) and constitutes inner chamber; Said frame (2) flange is connected on support (1) input end face; Said brake component is by the hollow input shaft (9) that is contained in end cap (11) endoporus; Be contained in input shaft (9) and go up initiatively V-type slotted disk (7); Driven V-type slotted disk (6); Place steel ball (10) between two V-type grooves; Friction pair and Returnning spring (5) are formed; Said steel ball is distributed on the retainer; Said steel ball number and master; Driven V-type slotted disk groove number equates; Said friction pair is formed with awl dish (4) by being fixed on frame (2) input end endoporus internal cones (3); Said awl dish (4) and driven V-type slotted disk (6) internal spline and sun wheel shaft (12) input shaft extension end external splines cunning are joined; Said Returnning spring (5) one ends are close on the shaft shoulder of hollow sun wheel shaft (12), and the other end is close to awl dish (4) and internal cones (3) circular cone rubbing surface are compressed;
(B) the quasi-planet driving component comprises height; Slow speed turbine stage two parts; Its high speed level is by the sun gear (13) that is contained on the hollow sun wheel shaft (12); First planet wheel (14) and frame (2) are formed; Said planet wheel (14) is connected in slow speed turbine stage planet wheel shaft (15) shaft extension end; Slow speed turbine stage is by planet wheel shaft (15); Second planet wheel (17) and ring gear (16) are formed; Said planet wheel shaft (15) is bearing in the hole that is uniformly distributed with on the frame (2) with bearing; Said ring gear (16) cylindrical spline and short cylinder (18) internal spline cunning are joined; Said short cylinder (18) connects one with output shaft (19) disk; Said output shaft (19) is the half-blindness hollow shaft; Its both sides are with bearing (21; 22) be bearing in respectively in support (1) and frame (2) endoporus; During assembling output shaft (19) endoporus is inserted on the lift transmission shaft; The screw rod (8) that injects from input end passes input shaft (9) according to this; Sun wheel shaft (12); Being bearing in output shaft (19) blind hole end former aperture tightens and strains at the lift transmission shaft; To prevent that retarder from coming off; Said support (1) connects torsion support arm (20) retarder is limited on the lift fixed position, prevents that retarder from rotating.
Taper friction pair computational chart (in order to compare) with existing lift disc-brake
| Formula | ZKL1 | ZKL3 | ZKL5 | ZKL7 | |
| 1 | Input power N (kW), 1000r/min, i=40 | 163 | 522 | 1155 | 2059(750r/min) |
| 2 | Input torque T (Nm) | 1553(Nm) | 4982(Nm) | 11030(Nm) | 26215(Nm) |
| 3 | Input diameter of axle d ≈ (T/0.008) 0.333 | 58 | 85.2 | 111 | 148.5 |
| 4 | Dp ≈ 4.0d in footpath in the friction cone ,/b=0.25Dp | 230 /58 | 340 /85 | 445 /110 | 600 /150 |
| 5 | The big footpath D of friction cone 2＝D p+bsinα | 241.56 | 356.95 | 466.9 | 629.9 |
| 6 | Friction cone path D 1＝D p-b?sinα | 218.44 | 323.05 | 423.1 | 570.1 |
| 7 | Required axial force Q=2000T ∑ ÷ (μ Dp) | 20912(N) | 45382 | 76767 | 135319 |
| 8 | Specific pressure p=4Q ÷ π (D 2 2-D 1 2)(MPa) | 2.51(MPa) | 2.51 | 2.51 | .2.4 |
| 9 | Kv＝1.358v -0.3332 /v≤25m/s | 0.59/12m/s | 0.52/17.8m/s | 0.48/23.3m/s | 0.51/18.9m/s |
| 10 | T p＝πD p 2bμP pKvK T/2000β(P p＝3) | 1991(Nm) | 5618(Nm) | 11400(Nm) | 30280(Nm) |
| 11 | ZK series mine hoist retarder external diameter | φ920 | φ1280 | φ1700 | φ2100 |
In the computational chart: T
pBe taper friction pair carrying moment, joint efficiency ∑=μ cos α+sin α=0.542
(1) ferrous based powder metallurgical friction pair: pressure P allowable
p=1.2～3.0MPa, coefficientoffriction=0.3～0.4=0.35,
Friction angle Φ=tg
-1μ=19.3 °, allowable stress σ
p=19.6～29.4MPa=25 (cast iron);
(2) friction pair: α=8 °～15 °=11.5 ° (gold～gold), friction pair bus length b=(0.15～0.25) D
p=0.25Dp, D
p≈ (4～6) d, friction pair throw off stroke x=δ/sin α=2.50mm (gap delta=0.5～1.0=0.50, no lining),
(3) (separation) joint efficiency K
T=1.0 (per hour connecting times≤120), safety coefficient β=1.2～1.5=1.50.
Claims (1)
1. the shaft-mounted self-retention quasi-planet of mine hoist retarder is characterized in that: forms by brake component and NW type quasi-planet driving component, wherein:
(A) said brake component is contained in the inner chamber that frame (2) and end face upper link end cap (11) are constituted; Said frame (2) flange is connected on support (1) the input end end face; Said brake component is by the hollow input shaft (9) that is contained in end cap (11) endoporus; Be contained in the active V-type slotted disk (7) on the input shaft (9); Driven V-type slotted disk (6); Place the steel ball (10) between the two V-type grooves; Friction pair and Returnning spring (5) are formed; Described steel ball is distributed on the retainer; Described steel ball number and master; Driven V-type slotted disk groove number equates; Described friction pair is made up of internal cones (3) that is fixed on frame (2) input end endoporus and awl dish (4); The internal spline of described awl dish (4) and driven V-type slotted disk (6) and hollow sun wheel shaft (12) input shaft extension end external splines cunning are joined; Said Returnning spring (5) one ends are close on the shaft shoulder of hollow sun wheel shaft (12), and the other end is close on awl dish (4) end face and awl dish (4) and internal cones (3) circular cone rubbing surface are compressed;
(B) the quasi-planet driving component comprises level and slow speed turbine stage two parts at a high speed; Its high speed level is by the sun gear (13) that is contained on the hollow sun wheel shaft (12); First planet wheel (14) and frame (2) are formed; Described first planet wheel (14) is connected in slow speed turbine stage planet wheel shaft (15) shaft extension end; Slow speed turbine stage is by planet wheel shaft (15); Second planet wheel (17) and ring gear (16) are formed; Described planet wheel shaft (15) is bearing in the hole that is uniformly distributed with on the frame (2) with bearing; Said ring gear (16) cylindrical spline and short cylinder (18) internal spline cunning are joined; Described short cylinder (18) connects one with output shaft (19) disk; Said output shaft (19) is the half-blindness hollow shaft; On the blind hole end former aperture is arranged; Said output shaft (19) both sides are with bearing (21; 22) be bearing in respectively in support (1) and frame (2) endoporus, said support (1) connects torsion support arm (20);
(C) screw rod (8) that injects from input end passes input shaft (9), sun wheel shaft (12) according to this, injects output shaft (19) endoporus, relies on the aperture supporting on output shaft (19) the blind hole end former.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110062238A CN102305276A (en) | 2011-03-01 | 2011-03-01 | Shaft-mounted self-braking quasi-planetary speed reducer for mine hoist |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110062238A CN102305276A (en) | 2011-03-01 | 2011-03-01 | Shaft-mounted self-braking quasi-planetary speed reducer for mine hoist |
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| CN102305276A true CN102305276A (en) | 2012-01-04 |
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| CN201110062238A Pending CN102305276A (en) | 2011-03-01 | 2011-03-01 | Shaft-mounted self-braking quasi-planetary speed reducer for mine hoist |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996768A (en) * | 2012-12-07 | 2013-03-27 | 重庆齿轮箱有限责任公司 | Device for enhancing rigidity of large-sized parallel shaft type gearing box body |
| CN103322129A (en) * | 2013-06-28 | 2013-09-25 | 无锡麻德克斯精机有限公司 | Planetary gear speed reducer |
| CN103791039A (en) * | 2012-10-30 | 2014-05-14 | 吴小杰 | Wind power compound planetary gear box with bearings lubricated by grease |
| CN107630942A (en) * | 2017-10-19 | 2018-01-26 | 兰州万里航空机电有限责任公司 | A kind of limiter of moment being used in rotary actuator |
| CN108217408A (en) * | 2016-12-21 | 2018-06-29 | 奥的斯电梯公司 | Make moving gear and personnel's conveyer including making moving gear by oneself by oneself |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510819A (en) * | 2002-12-26 | 2004-07-07 | 吴声震 | Brake motor |
| CN101929525A (en) * | 2010-02-10 | 2010-12-29 | 吴声震 | Shaft-mounted type quasi-planetary speed reducer |
-
2011
- 2011-03-01 CN CN201110062238A patent/CN102305276A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510819A (en) * | 2002-12-26 | 2004-07-07 | 吴声震 | Brake motor |
| CN101929525A (en) * | 2010-02-10 | 2010-12-29 | 吴声震 | Shaft-mounted type quasi-planetary speed reducer |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103791039A (en) * | 2012-10-30 | 2014-05-14 | 吴小杰 | Wind power compound planetary gear box with bearings lubricated by grease |
| CN102996768A (en) * | 2012-12-07 | 2013-03-27 | 重庆齿轮箱有限责任公司 | Device for enhancing rigidity of large-sized parallel shaft type gearing box body |
| CN102996768B (en) * | 2012-12-07 | 2015-04-08 | 重庆齿轮箱有限责任公司 | Device for enhancing rigidity of large-sized parallel shaft type gearing box body |
| CN103322129A (en) * | 2013-06-28 | 2013-09-25 | 无锡麻德克斯精机有限公司 | Planetary gear speed reducer |
| CN108217408A (en) * | 2016-12-21 | 2018-06-29 | 奥的斯电梯公司 | Make moving gear and personnel's conveyer including making moving gear by oneself by oneself |
| CN107630942A (en) * | 2017-10-19 | 2018-01-26 | 兰州万里航空机电有限责任公司 | A kind of limiter of moment being used in rotary actuator |
| CN107630942B (en) * | 2017-10-19 | 2024-04-12 | 兰州万里航空机电有限责任公司 | Moment limiter for rotary actuator |
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Application publication date: 20120104 |