CN105179527A - Multiple-section round roller type disc-shaped brake and single-stage soft-start stepless speed regulating box - Google Patents
Multiple-section round roller type disc-shaped brake and single-stage soft-start stepless speed regulating box Download PDFInfo
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- CN105179527A CN105179527A CN201510682210.8A CN201510682210A CN105179527A CN 105179527 A CN105179527 A CN 105179527A CN 201510682210 A CN201510682210 A CN 201510682210A CN 105179527 A CN105179527 A CN 105179527A
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- copper sheathing
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- dish brake
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Abstract
The invention discloses a multiple-section round roller type disc-shaped brake. The front ends of piston rods of the disc-shaped brake are connected with left supporting seats and right supporting seats through supporting seat mounting plates; the disc-shaped brake further comprises wear resistant rollers; each wear resistant roller comprises a core shaft and one or more copper bush rubber rollers mounted on the outer surface of the core shaft in a sleeving manner; each copper bush rubber roller comprises a copper bush mounted on the outer surface of the core shaft in a sleeving manner and a wear resistant ring mounted on the outer surface of the copper bush in an interference sleeving manner; the copper bushes can rotate relative to the core shafts; the two ends of the core shafts are respectively mounted on the left supporting seats and the right supporting seats; the core shafts are limited and fixed by the core shafts, and are unmovable. Meanwhile, the invention further provides a single-stage soft-start stepless speed regulating box on which the disc-shaped brake is mounted. According to the invention, the original integral round roller is divided into multiple-section round rollers which can rotate respectively, the abrasion problem caused by different linear velocities of contact points of the original long round roller and a speed regulating wheel is solved, the problem of large heat value caused by sliding friction braking is solved, and the advantages of small heat value, good explosion-proof performance, excellent speed regulating performance, simple structure, small abrasion, long service life and the like are achieved.
Description
Technical field
The invention belongs to stepless speed regulation apparatus field, be specifically related to a kind of multistage round roller formula dish brake and single-stage soft start stepless speed regulating case.Be particularly useful for the contour rotating speed occasion of blower fan.
Background technique
High-power machinery equipment needs to consider the steady stepless speed regulation problem caused by working conditions change at work.In multidisciplinary fields such as machinery, motor and electronics, fluid power and hydraulic pressure, stepless speed regulation technology is carried out both at home and abroad and goed deep into and study widely, have developed diversified arrangements for speed regulation or equipment.At present on the market, have old-fashioned coupling fluid-structure speed regulator, hydrodynamic governor, the CST arrangements for speed regulation of the U.S., RHVC and up-to-date Britain's permanent-magnet speed governor etc. are multiple.Though these speed-regulating actuators respectively have feature, the shortcoming also having some cannot make user to accept completely.
Fluid coupling speed regulator changes output speed and torque by regulating the degree of filling of active chamber liquid, has certain speed regulation capacity.But long-term theoretical research and application practice show, the function of its speed governing and performance cannot meet actual requirement far away.
Though hydrodynamic governor can realize stepless speed regulation, equipment easily leaks, noise is large, temperature is high, have pollution to environment, and efficiency is low, fault is many, and thus integral working is not good.
The CST arrangements for speed regulation of the U.S. belong to liquid viscosity speed regulating device, utilize the sticky shearing active force being present in oil film between driving and driven friction plate to carry out transferring power.This device can realize stepless speed regulation between master and slave moving axis and synchronous operation within the specific limits, can carry out overload protection to transmission system.But when starting, motor is in load starting state, inrush current is large, and the rush of current time is long, and the power of motor acts in load by viscous torque, is not real No Load Start.Its transmission efficiency is lower, and power loss is large, and heating is serious, and device more complicated, manufacture and maintenance cost higher.
RHVC controls main drive motor rotating speed to reach stepless speed regulation by changing working power incoming frequency.Although RHVC speed adjusting performance is better, its long-time low cruise heating is serious, requires high, pollute electrical network, disturb other monitoring instruments and communication signal ambient temperature and turbidity test; Powerful frequency-variable controller price is very expensive, and circuit wherein and electronic parts and components maintenance difficult, maintenance cost is high.
Permanent-magnet speed governor is by regulating tubular p-m rotor and tubular conductor rotor at the relative position of axial direction, and the moment of torsion that change is transmitted between the two, can realize repeatably, adjustable, controllable output torque and rotating speed, realizes stepless speed regulation.Its advantage is safe, reliable, energy-conservation; Failure rate is low, safeguards few; Its shortcoming: permanent magnet is to responsive to temperature, and poor heat stability, ambient temperature exceedes certain value and can demagnetize, and knocks and also can affect magnetic, long operational time, and the magnetic intensity of permanent magnet also can reduce.Therefore, the temperature of air cooling controls existing problems, and the axle of motor and load is altered can not be excessive, and the curve of speed governing needs to select different materials etc. according to detailed programs.Powerful permanent-magnet speed governor is in speed adjusting performance, efficiency, heating, noise, and internal and overseas has certain gap.
Take a broad view of above-mentioned various arrangements for speed regulation, a kind ofly both can accomplish when keeping mair motor rotating speed constant, realize the speed governing of output speed Bidirectional stepless and seamlessly transit, and can also accomplish that structure is simple, reliable working performance, manufacture and working service with low cost.
And for some powerful devices for down-hole and explosive place, arrangements for speed regulation also must can realize explosion prevention function.But these device heating values large (wherein have part generate heat the frictional heat come between flywheel and shoe brake brake block), and, the mounting type of traditional shoe brake brake block is fastened on dish brake fitting seat by dish brake by cantilever, dish brake fitting seat is fastened on stone bolt, dish brake is cantilever support formula, be distributed in flywheel bi-side, during its work, frictional force leans on cantilever intensity as support completely, and work is also unreliable.Not only seriously restrict its speed adjusting performance, and bring certain potential safety hazard when mine uses.Therefore, the new stepless speed-regulating device can avoiding above-mentioned shortcoming is urgently developed.
Chinese patent 2014207808005 provides a kind of kinetic friction stepless speed regulation case, comprise planetary differential reduction device, be arranged on the flywheel on running shaft that planetary differential reduction device exposes, and symmetry is arranged on the dish brake of at least one pair of adjustment flywheel rotating speed of flywheel bi-side, it is characterized in that: the piston rod front end of described dish brake is connected with wear resistant roll by guiding pressing plate, this wear resistant roll is fixed on guiding pressing plate by bearing support and bearing, and wear resistant roll is symmetrically distributed in flywheel both sides and close flywheel in pairs, axis and the flywheel of wear resistant roll are radial parallel.
What this patent allowed stepless time adjustment is technically raised to a kind of brand-new theory, but the method realizing rolling friction speed governing should have multiple, needs people constantly to go to explore.
Summary of the invention
For the problems referred to above, it is little that the present invention aims to provide a kind of heating value, and explosion-proof performance is good, and speed adjusting performance is excellent, and structure is simple, weares and teares little, the multistage round roller formula disk type gate that service time is long and single-stage soft start stepless speed regulating case.
The technological scheme that the present invention deals with problems is: a kind of multistage round roller formula dish brake, its piston rod front end is connected with left support abutment and right support abutment by bearing mounting plate, also comprise wear resistant roll, described wear resistant roll comprises mandrel and is sleeved at least one copper sheathing rubber roll of mandrel outer surface, described copper sheathing rubber roll comprises the copper sheathing that is sleeved on mandrel outer surface and the interference wear-resisting ring at copper sheathing outer surface, and copper sheathing can rotate relative to mandrel; Mandrel two ends are arranged on left and right bearing respectively, and mandrel is spacing fixing, not movable by bearing.
Further, described copper sheathing outer surface is provided with groove, and wear-resisting ring internal surface is provided with the projection with groove fit, and after wear-resisting ring and copper sheathing assemble, projection is inserted in groove.This further improvement project can not relatively rotate and move after making copper sheathing and wear-resisting ring assembling.
Concrete, the assembling mode of copper sheathing and wear-resisting ring adopts rolls note technique.
Preferably, described copper sheathing rubber roll has multiple, and series connection is sleeved on mandrel outer surface successively.
Preferred, for making copper sheathing have self-lubricating property, described copper sheathing is graphite copper sheathing.
Preferably, described wear-resisting ring is made up of abrasive rubber.
Simultaneously, the present invention also provides a kind of single-stage soft start stepless speed regulating case, comprise planetary differential reduction device, be arranged on the flywheel on running shaft that planetary differential reduction device differential attachment exposes, and symmetry is arranged at least one pair of dish brake of flywheel bi-side, described dish brake is the multistage round roller formula dish brake described in technique scheme, and the wear resistant roll of this multistage round roller formula dish brake is symmetrically distributed in flywheel both sides in pairs and near flywheel, axis and the flywheel of wear resistant roll are radial parallel.
Preferably, it is two right that the multistage round roller formula dish brake that symmetry is arranged on flywheel bi-side has.
When being arranged on the multistage round roller formula dish brake work of flywheel bi-side, after the wear-resisting ring on its paired wear resistant roll and flywheel contacts side surfaces, under the effect of frictional force, wear-resisting ring drive copper sheathing rotates around mandrel; Increase dish brake working pressure, by wear-resisting ring, frictional damping is applied to speed governing wheel side, control the rotating speed of flywheel, realize the stepless change of flywheel, and then realize the stepless change of the operation mechanism controlled by flywheel.
Remarkable result of the present invention is:
1. the overall wear resistant roll of original integrative-structure is transformed into the multistage wear resistant roll structure that can rotate respectively, makes each self-applying of wear-resisting ring, between be independent of each other, the speed that there is not certain wear-resisting ring is different and drive the phenomenon that other wear-resisting ring is pulled.Solve the problem that when original structure wear resistant roll contacts with flywheel, wearing and tearing that are that cause are uneven because the linear velocity of each point is different.
And be rolling friction between wear-resisting ring and flywheel, heating value is little, and explosion-proof performance is good, and speed adjusting performance is stablized.
2. fixed by mandrel, and original rolling bearing is replaced to graphite copper sheathing, be equivalent to rolling friction to make sliding friction into, friction factor increases, and when making to act on, frictional force increases.And graphite copper sheathing has self-lubricating function, and the life-span is long, easy to maintenance.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described.
Fig. 1 is a pair dish brake structural representation of the present invention.
Fig. 2 be stepless speed-regulating device of the present invention overlook cut away view.
Fig. 3 is the plan view of stepless speed-regulating device of the present invention.
Fig. 4 is copper sheathing and wear-resisting ring structural drawing.
In figure: 1-disk type gate, 2-wear resistant roll, 3-mandrel, 4-left support abutment, 5-right support abutment, 6-piston rod, 7-copper sheathing, 8-bearing mounting plate, 9-wear-resisting ring, 10-flywheel, the running shaft that 11-planetary differential reduction device differential attachment exposes, 71-groove, 91-is protruding.
Embodiment
For convenience of description, the description of the relative position relation (as: front, rear, left and right etc.) of each parts is all be described according to the Butut direction of Figure of description.
As shown in figures 1-4, a kind of multistage round roller formula dish brake, its piston rod 6 front end is connected with left support abutment 4 and right support abutment 5 by bearing mounting plate 8, also comprise wear resistant roll 2, described wear resistant roll 2 comprises mandrel 3 and series connection is sleeved on multiple copper sheathing rubber rolls of mandrel 3 outer surface, described copper sheathing rubber roll comprises the copper sheathing 7 that is sleeved on mandrel 3 outer surface and the interference wear-resisting ring 9 at copper sheathing 7 outer surface, and copper sheathing 7 can rotate relative to mandrel 3.
Mandrel 3 two ends are arranged on left and right bearing respectively, and mandrel 3 is spacing fixing, not movable by bearing.
Described copper sheathing 7 outer surface is provided with groove 71, and wear-resisting ring 9 internal surface is provided with the projection 91 coordinated with groove 71, and wear-resisting ring 9 and copper sheathing 7 assemble rear protruding 91 and insert in groove 71.This further improvement project can not relatively rotate and move after copper sheathing 7 and wear-resisting ring 9 are assembled.
Copper sheathing 7 adopts with the assembling mode of wear-resisting ring 9 and rolls note technique.
For making copper sheathing 7 have self-lubricating property, described copper sheathing 7 is graphite copper sheathing.
Preferably, described wear-resisting ring 9 is made up of abrasive rubber.
Simultaneously, the present embodiment also provides a kind of single-stage soft start stepless speed regulating case, comprise planetary differential reduction device, be arranged on the flywheel 10 on running shaft 11 that planetary differential reduction device differential attachment exposes, and symmetry is arranged on the dish brake 1 of two couples adjustment flywheel 10 rotating speed of flywheel 10 bi-side, described dish brake 1 is the multistage round roller formula dish brake described in technique scheme, the wear resistant roll 2 of this multistage round roller formula dish brake 1 is symmetrically distributed in flywheel 10 both sides in pairs and near flywheel 10, axis and the flywheel 10 of wear resistant roll 2 are radial parallel.
When the multistage round roller formula dish brake 1 being arranged on flywheel 10 bi-side works, after the wear-resisting ring 9 on its paired wear resistant roll 2 and flywheel 10 contacts side surfaces, under the effect of frictional force, wear-resisting ring 9 drives copper sheathing 7 to rotate around mandrel 3; Increase dish brake 1 working pressure, apply frictional damping by wear-resisting ring 9 pairs of flywheel 10 sides, control the rotating speed of flywheel 10, realize the stepless change of flywheel 10, and then realize the stepless change of the operation mechanism controlled by flywheel 10.
In diagram, undeclared place is well known organization.
Claims (8)
1. a multistage round roller formula dish brake, its piston rod front end is connected with left support abutment and right support abutment by bearing mounting plate, it is characterized in that: also comprise wear resistant roll, described wear resistant roll comprises mandrel and is sleeved at least one copper sheathing rubber roll of mandrel outer surface, described copper sheathing rubber roll comprises the copper sheathing that is sleeved on mandrel outer surface and the interference wear-resisting ring at copper sheathing outer surface, and copper sheathing can rotate relative to mandrel; Mandrel two ends are arranged on left and right bearing respectively, and mandrel is spacing fixing, not movable by bearing.
2. multistage round roller formula dish brake according to claim 1, is characterized in that: described copper sheathing outer surface is provided with groove, and wear-resisting ring internal surface is provided with the projection with groove fit, and after wear-resisting ring and copper sheathing assemble, projection is inserted in groove.
3. multistage round roller formula dish brake according to claim 2, is characterized in that: the assembling mode of copper sheathing and wear-resisting ring adopts rolls note technique.
4. multistage round roller formula dish brake according to claim 1, is characterized in that: described copper sheathing rubber roll has multiple, and series connection is sleeved on mandrel outer surface successively.
5. multistage round roller formula dish brake according to claim 1, is characterized in that: described copper sheathing is graphite copper sheathing.
6. multistage round roller formula dish brake according to claim 1, is characterized in that: described wear-resisting ring is made up of abrasive rubber.
7. a single-stage soft start stepless speed regulating case, comprise planetary differential reduction device, be arranged on the flywheel on running shaft that planetary differential reduction device differential attachment exposes, and symmetry is arranged at least one pair of dish brake of flywheel bi-side, it is characterized in that: the multistage round roller formula dish brake of described dish brake according to any one of the claims 1 ~ 6, the wear resistant roll of this multistage round roller formula dish brake is symmetrically distributed in flywheel both sides in pairs and near flywheel, axis and the flywheel of wear resistant roll are radial parallel.
8. single-stage soft start stepless speed regulating case according to claim 7, is characterized in that: it is two right that the multistage round roller formula dish brake that symmetry is arranged on flywheel bi-side has.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510682210.8A CN105179527B (en) | 2015-10-21 | 2015-10-21 | A kind of multistage round roller formula dish brake and single-stage soft start stepless speed regulating case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510682210.8A CN105179527B (en) | 2015-10-21 | 2015-10-21 | A kind of multistage round roller formula dish brake and single-stage soft start stepless speed regulating case |
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| Publication Number | Publication Date |
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| CN105179527A true CN105179527A (en) | 2015-12-23 |
| CN105179527B CN105179527B (en) | 2017-09-22 |
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| CN201510682210.8A Active CN105179527B (en) | 2015-10-21 | 2015-10-21 | A kind of multistage round roller formula dish brake and single-stage soft start stepless speed regulating case |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020006854A1 (en) * | 2000-05-31 | 2002-01-17 | Giulio Magnani | Braking roller for systems for cutting metal bands into strips |
| CN2753694Y (en) * | 2004-12-23 | 2006-01-25 | 张政 | Hot-press composite roller |
| CN201874982U (en) * | 2010-12-10 | 2011-06-22 | 武汉钢铁(集团)公司 | Composite steel roller |
| CN203202007U (en) * | 2013-04-26 | 2013-09-18 | 福建省晋江市佶龙机械工业有限公司 | Improved rubber covered roll |
| CN104455288A (en) * | 2014-12-12 | 2015-03-25 | 湖南远扬煤机制造有限公司 | Kinetic-friction stepless speed governing box |
| CN205190581U (en) * | 2015-10-21 | 2016-04-27 | 湖南远扬煤机制造有限公司 | Multistage circle roll -type disk floodgate and single -stage soft start stepless speed control case |
-
2015
- 2015-10-21 CN CN201510682210.8A patent/CN105179527B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020006854A1 (en) * | 2000-05-31 | 2002-01-17 | Giulio Magnani | Braking roller for systems for cutting metal bands into strips |
| CN2753694Y (en) * | 2004-12-23 | 2006-01-25 | 张政 | Hot-press composite roller |
| CN201874982U (en) * | 2010-12-10 | 2011-06-22 | 武汉钢铁(集团)公司 | Composite steel roller |
| CN203202007U (en) * | 2013-04-26 | 2013-09-18 | 福建省晋江市佶龙机械工业有限公司 | Improved rubber covered roll |
| CN104455288A (en) * | 2014-12-12 | 2015-03-25 | 湖南远扬煤机制造有限公司 | Kinetic-friction stepless speed governing box |
| CN205190581U (en) * | 2015-10-21 | 2016-04-27 | 湖南远扬煤机制造有限公司 | Multistage circle roll -type disk floodgate and single -stage soft start stepless speed control case |
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| CN105179527B (en) | 2017-09-22 |
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Effective date of registration: 20201228 Address after: 224000 no.58-1 cangzhong Road, biancang Town, Tinghu District, Yancheng City, Jiangsu Province (16) Patentee after: Yancheng withered tree peony Tourism Development Investment Co.,Ltd. Address before: 417100 Lotus Square, Renmin East Road, Lianyuan City, Loudi City, Hunan Province Patentee before: HUNAN YUANYANG COAL MACHINE MANUFACTURING Co.,Ltd. |
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Effective date of registration: 20220923 Address after: Group 2, Xinqiao Village, Bicang Town, Tinghu District, Yancheng City, Jiangsu Province, 224000 Patentee after: Yancheng Youwei Iron Art Decoration Co.,Ltd. Address before: 224000 no.58-1 cangzhong Road, biancang Town, Tinghu District, Yancheng City, Jiangsu Province (16) Patentee before: Yancheng withered tree peony Tourism Development Investment Co.,Ltd. |