CN102345709B - Inversed rotating reductor - Google Patents
Inversed rotating reductor Download PDFInfo
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- CN102345709B CN102345709B CN201110202885.XA CN201110202885A CN102345709B CN 102345709 B CN102345709 B CN 102345709B CN 201110202885 A CN201110202885 A CN 201110202885A CN 102345709 B CN102345709 B CN 102345709B
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- break
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- inversed
- reductor
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Abstract
The invention discloses an inversed rotating reductor, and belongs to the technical field of reductors. The reductor is characterized in that a power producer of the reductor is arranged on the lower end of the whole reductor, the upper part of the power producer is connected with a braker, the upper part of the braker is connected with a speed changing mechanism, and the upper part of the speed changing mechanism is connected with a power input mechanism; the lower end of a braking connecting shaft is provided with a bearing, and the upper end of the braking connecting shaft is hermetically provided with a skeleton oil seal used for separating the inner cavity the braker from the inner cavity of a gear ring; and a dust cap is fixed on the upper end of a bearing base, and the dust cap is hermetically connected with an output gear wheel shaft. The reductor provided by the invention has the following beneficial effects: the inversion operation mode that a rotating reductor power input system is positioned at the lower part and a power output system is positioned at the upper part can be realized, and the operation is stable and reliable; the skeleton oil seal is used for separating the inner cavity of the braker from the inner cavity of the gear ring, thereby preventing a friction plate from being ablated; and the dust cap and a dustproof oil seal can prevent the outside sediment from invading, thereby effectively prolonging the service life of the reductor.
Description
Technical field
The present invention relates to a kind of rotary reducer, belong to the speed reducer technical field.
Background technique
The rotary reducer major component that existing engineering machinery is used is from top to bottom successively: main four parts such as power input system (as oil hydraulic motor or motor), braking system, transmission system, output system (as output gear) form.Its mounting type be mainly the power input system upper, power output system under, support engagement by the output gear on rotary reducer and revolution.Yet in some cases, due to the restriction that is subject to the main machine structure space or other requirement is arranged, rotary reducer must be taked to be inverted the mode (as the rotary system of concrete mixer) of installing, and existing rotary reducer is difficult to meet such requirement.Because, when existing speed reducer is inverted, due to inner driving component, for floating, install, will certainly under the self gravitation effect, cause axial slip and prop up oil hydraulic motor and cause interference; Simultaneously, when rotary reducer is inverted, wear particle and the easy engaging friction moving plate of other impurity and the space rubbed between stator that transmission system is worn and torn and through long-term work, thus cause the friction plate ablation to cause braking failure.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art part, the invention provides a kind of Inversed rotating reductor, can realize the power input system under, power output system is in upper inversion working method, and increased bearing, outside framework oil seal and dust cover, effectively solved and be inverted the technical problem of bringing.
The present invention is achieved through the following technical solutions: a kind of Inversed rotating reductor, it comprises: power source, mainly by adpting flange, piston, brake casing, spring, the braking coupling shaft, the break that friction stator and friction moving plate form, the main gear formed by gear housing and multi-stage planetary gear, and mainly by bearing support, the power take-off mechanism that output gear shaft and output gear form, described power source is arranged on the lower end of complete machine, power source top connects described break, break top connects described gear, gear top connects described power take-off mechanism, described adpting flange, brake casing, it is a single-piece frame that gear housing and bearing support are rigidly connected from bottom to top, transmission system in casing comprises described braking coupling shaft, the lower end key of braking coupling shaft connects the pto＝power take-off of described power source, the planetary central gear of the upper end spline joint first order of braking coupling shaft, the planetary central gear spline joint of the next stage on the planetary planet carrier of every one-level and its top, the described output gear shaft of planetary planet carrier spline joint of afterbody, the upper end of output gear shaft connects described output gear,
The lower end of described braking coupling shaft is equipped with bearing, and the inner ring of bearing is connected with the braking coupling shaft, and the outer ring of bearing is connected with described adpting flange;
Be equipped with the outside framework oil seal of break inner chamber and the isolation of gear housing inner chamber the upper end of described braking coupling shaft;
The upper end of described bearing support is fixed with dust cover, and dust cover and described output gear shaft are tightly connected.
Between described dust cover and described output gear shaft, anti-dust seal is arranged.
A plurality of installation screws around a symmetrical center line circle distribution are arranged on described bearing support, between the symmetrical center line between installation screw and the medial axis of described output gear shaft, certain throw of eccentric is arranged.
Described throw of eccentric is 1.5mm.
Break filler opening and break fuel outlet are arranged, described break filler opening and break fuel outlet and friction stator and friction moving plate place intracavity inter-connection on described brake casing.
On described bearing support, lubricating cup is housed.
The invention has the beneficial effects as follows: 1, can realize rotary decelerating mechanomotive force input system under, power output system is in upper inversion working method, working stability is reliable.
2, in the lower end of braking coupling shaft, bearing is installed, has both prevented from braking the joining shaft axial float, can guarantee again the alignment of input and the output of whole speed reducer.
3, in the sealing of the upper end of braking coupling shaft, be equipped with the outside framework oil seal of break inner chamber and the isolation of gear housing inner chamber, can carry out the isolation in two chambeies, prevent transmission system through long-term fatigue wear and the wear particle that produces and other impurity enter braking system and cause the ablation of friction plate.
4, in the upper end of bearing support, dust cover and anti-dust seal are housed, can prevent the intrusion of extraneous silt, can prevent that again internal gear oil from leaking, and extended the working life of speed reducer effectively.
5, certain throw of eccentric is arranged between the medial axis of the symmetrical center line between installation screw and output gear shaft, adjust the centre distance of rotary reducer output gear and pivoting support gear by the position of adjusting installation screw, thereby reach the effect of adjusting back lash, reduce harmful effect service behaviour caused because of the output gear wearing and tearing.
The accompanying drawing explanation
Below the present invention is further described according to drawings and embodiments.
In figure, 1, power source, 2, bearing, 3, adpting flange, 4, the break fuel outlet, 5, piston, 6, adjust packing ring, 7, the friction stator, 8, the friction moving plate, 9, spacing back-up ring, 10, the transmission system fuel outlet, 11, the primary centre gear, 12, primary planet carrier, 13, the gear housing, 14, the secondary planet frame, 15, the planet wheel bearing I, 16, the secondary planet wheel, 17, bearing support, 17-1, installation screw, 18, the oil level mouth, 19, dust cover, 20, anti-dust seal, 21, output gear, 22, output gear shaft, 23, the secondary center gear, 24, the one-level planet wheel, 25, the planet wheel bearing II, 26, brake casing, 27, outside framework oil seal, 28, the break filler opening, 29, spring, 30, the braking coupling shaft, 31, lubricating cup.
Embodiment
A kind of Inversed rotating reductor, comprising: power source 1, break, gear and power take-off mechanism as shown in drawings.Described power source 1 is arranged on the lower end of complete machine, and power source 1 top connects described break, and break top connects described gear, and gear top connects described power take-off mechanism.It is a single-piece frame that described adpting flange 3, brake casing 26, gear housing 13 and bearing support 17 are rigidly connected from bottom to top.
Described power source 1 adopts oil hydraulic motor or motor.
Described break mainly is comprised of adpting flange 3, piston 5, adjustment packing ring 6, spacing back-up ring 9, brake casing 26, spring 29, braking coupling shaft 30, friction stator 7 and friction moving plate 8, the friction stator is connected with brake casing 26 internal splines with external splines, in the situation of rotary reducer normal operation, by squeeze into high pressure oil to break, make piston overcome spring force to move downward, the friction moving plate separates with the friction stator, break is opened, rotary reducer work; While needing stopping brake, cancel high pressure oil, piston moves upward under spring-force driven dual, and the friction moving plate is together with the stator that rubs fits tightly, and arrester close plays the effect of stopping brake.For preventing in high speed, high temperature, high pulling torque, friction plate ablation under the mal-conditions such as frequent braking, this braking system adopts wet friction, be respectively arranged with up and down break filler opening 28 and break fuel outlet 4 at brake casing 26, with friction stator 7 and friction moving plate 8 place intracavity inter-connections, in order to braking system is carried out to conventional maintenance.
Described gear is the secondary planetary gear gear, comprising: be fixed on the interior gear ring of gear housing 13, gear housing 13 transmission system fuel outlet 10 is arranged; The first order Planetary Gear Transmission be comprised of primary centre gear 11, primary planet carrier 12, one-level planet wheel 24, have planet wheel bearing II 25 between primary planet carrier 12 and one-level planet wheel 24; By secondary center gear 23, secondary planet frame 14, secondary planet wheel 16 second level Planetary Gear Transmissions that form, between secondary planet frame 14 and secondary planet wheel 16, planet wheel bearing I 15 is arranged.
Described power take-off mechanism comprises bearing support 17, output gear shaft 22 and output gear 21.Oil level mouth 18 and lubricating cup 31 are arranged on bearing support 17, be convenient to oiling, observation and balance inner and outer air pressure.
Transmission system of the present invention comprises described braking coupling shaft 30, the lower end of braking coupling shaft 30 connects the pto＝power take-off of described power source 1 by flat key, the upper end spline joint primary centre gear 11 of braking coupling shaft 30, secondary center gear 23 spline joints on primary planet carrier 12 and its top, the described output gear shaft 22 of secondary planet frame 14 spline joint, the upper end of output gear shaft 22 connects described output gear 21 by involute splines.
Transmission of power principle of the present invention is: oil hydraulic motor drives braking coupling shaft 30 and is rotated, braking coupling shaft 30 drives the primary centre gear and carries out synchronous rotary, primary centre gear driven one-level planet wheel is rotated, because gear housing and main frame maintain static, so the axis that the one-level planet wheel is also speed reducer with primary planet carrier around the center line of gear housing except being rotated around self axis is rotated, primary planet carrier is rigidly connected by involute splines and secondary center gear again, so the axis that the secondary center gear is synchronizeed with primary planet carrier around speed reducer is rotated, and this speed is the speed through after primary speed-down, moment of torsion is for increasing the moment of torsion after turning round through one-level, in like manner, the rotation of secondary center gear driven secondary planet wheel, also with the secondary planet frame, the axis around speed reducer is rotated except being rotated around self axis for secondary planet wheel, the secondary planet frame is rigidly connected by involute splines and output gear shaft, the rotating speed that finally is delivered to output gear is the speed through after double reduction, moment of torsion is for increase the moment of torsion after turning round through two-stage, thereby realization is input to the function of low-speed big output by high speed low torque.
Because primary planet carrier 12 is an integral body with secondary center gear 23 by the involute splines rigid joint, this integral body is floated and is installed under output gear shaft, on the primary centre gear, primary centre gear 11 is an integral body with braking coupling shaft 30 by the involute splines rigid joint, this integral body is floated and is installed under the secondary center gear, on the motor protecgulum, be reserved with in theory the gap value of 1.5～2mm with the motor protecgulum, yet in the practical set process, due to these two integral body, on speed reducer axis direction, do not have fixing, be subject to the self gravitation effect in addition, can cause braking coupling shaft 30 tops and cause interference to the motor protecgulum, therefore the present invention is equipped with bearing 2 in the lower end of braking coupling shaft 30, bearing 2 is deep groove ball bearing, the inner ring of bearing 2 is connected with braking coupling shaft 30, the outer ring of bearing 2 is connected with described adpting flange 3, be used for preventing the input and output alignment of braking coupling shaft 30 axial floats and guaranteeing whole speed reducer.
The upper end sealing of described braking coupling shaft 30 is equipped with the outside framework oil seal 27 of break inner chamber and the isolation of gear housing inner chamber, can carry out the isolation in two chambeies, prevent transmission system through long-term fatigue wear and the wear particle that produces and other impurity enter braking system and cause the ablation of friction plate.
The upper end of described bearing support 17 is fixed with dust cover 19, and dust cover 19 is tightly connected with described output gear shaft 22.Between described dust cover 19 and described output gear shaft 22, anti-dust seal 20 is arranged.Can prevent the intrusion of extraneous silt, can prevent that again internal gear oil from leaking, and extended the working life of speed reducer effectively.
In Practical manufacturing and assembly process due to the impact that is subject to various accumulated errors, back lash during assembling between output gear and revolution support might not guarantee the company standard of each main engine factory, and the user in actual use, through long-term work, wearing and tearing and all can cause the increase of back lash of the gearwheel that the output gear of rotary reducer and revolution are supported, affect the rotating service behaviour of main frame.In order to make up the generation of this problem, be manufactured with a plurality of installation screw 17-1 around a symmetrical center line circle distribution on described bearing support 17, between the medial axis of the symmetrical center line between installation screw 17-1 and described output gear shaft 22, certain throw of eccentric arranged.Adjust the centre distance of rotary reducer output gear and pivoting support gear by the position of adjusting installation screw, thereby reach the effect of adjusting back lash.Described throw of eccentric can be made as 1.5mm.
Claims (6)
1. an Inversed rotating reductor, it comprises: power source (1), mainly by adpting flange (3), piston (5), brake casing (26), spring (29), braking coupling shaft (30), the break that friction stator (7) and friction moving plate (8) form, the gear mainly formed by gear housing (13) and multi-stage planetary gear, and mainly by bearing support (17), the power take-off mechanism that output gear shaft (22) and output gear (21) form, it is characterized in that: described power source (1) is arranged on the lower end of complete machine, power source (1) top connects described break, break top connects described gear, gear top connects described power take-off mechanism, described adpting flange (3), brake casing (26), it is a single-piece frame that gear housing (13) and bearing support (17) are rigidly connected from bottom to top, transmission system in casing comprises described braking coupling shaft (30), the lower end key of braking coupling shaft (30) connects the pto＝power take-off of described power source (1), the planetary central gear of the upper end spline joint first order of braking coupling shaft (30), the planetary central gear spline joint of the next stage on the planetary planet carrier of every one-level and its top, the described output gear shaft of planetary planet carrier spline joint (22) of afterbody, the upper end of output gear shaft (22) connects described output gear (21),
The lower end of described braking coupling shaft (30) is equipped with bearing (2), and the inner ring of bearing (2) is connected with braking coupling shaft (30), and the outer ring of bearing (2) is connected with described adpting flange (3);
Be equipped with the outside framework oil seal (27) of break inner chamber and the isolation of gear housing inner chamber the upper end of described braking coupling shaft (30);
The upper end of described bearing support (17) is fixed with dust cover (19), and dust cover (19) is tightly connected with described output gear shaft (22).
2. Inversed rotating reductor according to claim 1, is characterized in that: between described dust cover (19) and described output gear shaft (22), anti-dust seal (20) is arranged.
3. Inversed rotating reductor according to claim 1, it is characterized in that: a plurality of installation screws around a symmetrical center line circle distribution (17-1) are arranged on described bearing support (17), between the medial axis of the symmetrical center line between installation screw (17-1) and described output gear shaft (22), certain throw of eccentric is arranged.
4. Inversed rotating reductor according to claim 3, it is characterized in that: described throw of eccentric is 1.5mm.
5. Inversed rotating reductor according to claim 1, it is characterized in that: break filler opening (28) and break fuel outlet (4) are arranged, described break filler opening (28) and break fuel outlet (4) and friction stator (7) and friction moving plate (8) place intracavity inter-connection on described brake casing (26).
6. Inversed rotating reductor according to claim 1, is characterized in that: lubricating cup (31) is housed on described bearing support (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110202885.XA CN102345709B (en) | 2011-07-20 | 2011-07-20 | Inversed rotating reductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110202885.XA CN102345709B (en) | 2011-07-20 | 2011-07-20 | Inversed rotating reductor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102345709A CN102345709A (en) | 2012-02-08 |
| CN102345709B true CN102345709B (en) | 2014-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110202885.XA Expired - Fee Related CN102345709B (en) | 2011-07-20 | 2011-07-20 | Inversed rotating reductor |
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| Country | Link |
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| CN (1) | CN102345709B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322168B (en) * | 2012-03-19 | 2016-08-03 | 沃德(天津)传动有限公司 | Reductor and sealing device thereof |
| CN103758938B (en) * | 2014-01-15 | 2016-08-24 | 徐州科源液压股份有限公司 | Excavator rotary reducer |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213913U (en) * | 1987-09-30 | 1988-09-28 | 福州发电设备厂 | Large-scale vertical planetary gear box |
| EP1837224A2 (en) * | 2006-03-14 | 2007-09-26 | SE IL Industry Co., Ltd | Transmission having integrated braking device |
| CN201277318Y (en) * | 2008-10-24 | 2009-07-22 | 天津市正平机械新技术有限公司 | Spline output anti-rust apparatus of vertical planet speed reducer |
| JP2009222151A (en) * | 2008-03-17 | 2009-10-01 | Komatsu Ltd | Vertical motor device with reduction gear |
| CN101793308A (en) * | 2010-01-28 | 2010-08-04 | 湖北博创机械制造有限责任公司 | Double helical tooth planetary speed reducer |
| CN202158150U (en) * | 2011-07-20 | 2012-03-07 | 徐州科源液压有限公司 | Inversely-arranged rotary speed reducer |
-
2011
- 2011-07-20 CN CN201110202885.XA patent/CN102345709B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213913U (en) * | 1987-09-30 | 1988-09-28 | 福州发电设备厂 | Large-scale vertical planetary gear box |
| EP1837224A2 (en) * | 2006-03-14 | 2007-09-26 | SE IL Industry Co., Ltd | Transmission having integrated braking device |
| JP2009222151A (en) * | 2008-03-17 | 2009-10-01 | Komatsu Ltd | Vertical motor device with reduction gear |
| CN201277318Y (en) * | 2008-10-24 | 2009-07-22 | 天津市正平机械新技术有限公司 | Spline output anti-rust apparatus of vertical planet speed reducer |
| CN101793308A (en) * | 2010-01-28 | 2010-08-04 | 湖北博创机械制造有限责任公司 | Double helical tooth planetary speed reducer |
| CN202158150U (en) * | 2011-07-20 | 2012-03-07 | 徐州科源液压有限公司 | Inversely-arranged rotary speed reducer |
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| Publication number | Publication date |
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| CN102345709A (en) | 2012-02-08 |
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Owner name: XUZHOU KEYUAN HYDRAULICS CO., LTD. Free format text: FORMER NAME: XUZHOU KEYUAN HYDRAULIC CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Ganjiang road Copper Mt. District 221116 Jiangsu city of Xuzhou Province, No. 6 Patentee after: Xuzhou Keyuan Hydraulics Co., Ltd. Address before: Ganjiang road Copper Mt. District 221116 Jiangsu city of Xuzhou Province, No. 6 Patentee before: Xuzhou Keyuan Hydraulic Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20140108 Termination date: 20160720 |