CN102345709A - Inversed rotating reductor - Google Patents
Inversed rotating reductor Download PDFInfo
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- CN102345709A CN102345709A CN201110202885XA CN201110202885A CN102345709A CN 102345709 A CN102345709 A CN 102345709A CN 201110202885X A CN201110202885X A CN 201110202885XA CN 201110202885 A CN201110202885 A CN 201110202885A CN 102345709 A CN102345709 A CN 102345709A
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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 (like oil hydraulic motor or motor), braking system, transmission system, output system (like output gear) are formed.Its mounting type mainly be the power input system last, power output system supports engagement down through output gear on the rotary reducer and revolution.Yet in some cases, owing to receive the restriction in main machine structure space or other requirement is arranged, rotary reducer must take to be inverted the mode (like the rotary system of concrete mixer) of installation, and existing rotary reducer is difficult to satisfy such requirement.Because when existing speed reducer is inverted,, will certainly under the self gravitation effect, causes axial slip and prop up oil hydraulic motor and cause interference because inner driving component installs for floating; Simultaneously, when rotary reducer was inverted, transmission system was through the long-term work space between the wear particle that gets off and the easy engaging friction moving plate of other impurity and the friction stator of wearing and tearing, thereby caused friction plate ablation causing braking failure.
Summary of the invention
In order to overcome the deficiency of above-mentioned existing technology; The present invention provides a kind of upside-down rotary reducer, can realize the power input system following, and power output system is in last 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 realizes through following technological scheme: a kind of upside-down rotary reducer; It comprises: power source; The break of mainly forming by adpting flange, piston, brake casing, spring, braking coupling shaft, friction stator and friction moving plate, the gear of mainly forming, and the power take-off mechanism of mainly forming by bearing support, output gear shaft and output gear by gear ring and multi-stage planetary gear; Described power source is installed in the lower end of complete machine; Power source 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, brake casing, gear ring and bearing support are rigidly connected from bottom to top; Transmission system in the casing comprises described braking coupling shaft; The lower end key of braking coupling shaft connects the pto of described power source; The upper end spline of braking coupling shaft connects the planetary central gear of the first order; The planetary planet carrier of each grade is connected with the planetary central gear spline of the next stage on its top, and the planetary planet carrier spline of afterbody connects described output gear shaft, and 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;
The outside framework oil seal with break inner chamber and the isolation of gear ring inner chamber is equipped with in 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 the described output gear shaft anti-dust seal is arranged.
A plurality of installation screws around a symmetrical center line circle distribution are arranged on the described bearing support, between the symmetrical center line between the 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, with friction stator and friction moving plate place intracavity inter-connection on the described brake casing.
On the described bearing support lubricating cup is housed.
The invention has the beneficial effects as follows: 1, can realize rotary decelerating mechanomotive force input system down, power output system is in last inversion working method, working stability is reliable.
2, in the lower end of braking coupling shaft bearing is installed, has both prevented to brake the joining shaft axial float, can guarantee the alignment of the input and the output of whole speed reducer again.
3, in the sealing of the upper end of braking coupling shaft the outside framework oil seal with break inner chamber and the isolation of gear ring inner chamber is housed; Can carry out the isolation in two chambeies, prevent that transmission system is through long-term fatigue wear and the wear particle that produces and other impurity get into 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 the internal gear oil leakage again, prolonged the working life of speed reducer effectively.
5, between the medial axis of symmetrical center line between the installation screw and output gear shaft certain throw of eccentric is arranged; Adjust the centre distance of rotary reducer output gear and pivoting support gear through the position of adjustment installation screw; Thereby reach the effect of adjustment back lash, reduce the harmful effect that service behaviour is caused because of the output gear wearing and tearing.
Description of drawings
According to accompanying drawing and embodiment the present invention is further specified below.
Among the figure, 1, power source, 2, bearing, 3, adpting flange, 4, the break fuel outlet, 5, piston; 6, adjustment 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, gear ring, 14, the secondary planet frame, 15, the planet wheel bearing I, 16, the secondary planet wheel, 17, bearing support; 17-1, screw is installed, 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
Like a kind of upside-down rotary reducer shown in the drawings, comprising: power source 1, break, gear and power take-off mechanism.Described power source 1 is installed in 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 ring 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 made up 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 has external splines and is connected with brake casing 26 internal splines; Make piston overcome spring force to move downward through squeeze into high pressure oil to break under the situation of rotary reducer proper functioning; The friction moving plate separates with the friction stator, and break is opened, rotary reducer work; When needing stopping brake, cancel high pressure oil, piston then moves upward under the spring force effect, and the friction moving plate fits tightly together with the friction stator, and arrester close plays the effect of stopping brake.For preventing in high speed; High temperature, high pulling torque, friction plate is ablated under the mal-conditions such as frequent braking; This braking system adopts wet friction; Be respectively arranged with break filler opening 28 and break fuel outlet 4 up and down at brake casing 26, with friction stator 7 and friction moving plate 8 place intracavity inter-connections, so that braking system is carried out conventional maintenance.
Described gear is the secondary planetary gear gear, comprising: on gear ring 13, the gear ring 13 transmission system fuel outlet 10 is arranged; First order planetary pinion transmission by primary centre gear 11, primary planet carrier 12, one-level planet wheel 24 are formed has planet wheel bearing II 25 between primary planet carrier 12 and the one-level planet wheel 24; By the second level planetary pinion transmission that secondary center gear 23, secondary planet frame 14, secondary planet wheel 16 are formed, between secondary planet frame 14 and the 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 the 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 of described power source 1 through flat key; The upper end spline of braking coupling shaft 30 connects primary centre gear 11; Primary planet carrier 12 is connected with secondary center gear 23 splines on its top, and secondary planet frame 14 splines connect described output gear shaft 22, and the upper end of output gear shaft 22 connects described output gear 21 through 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 rotates synchronously; Primary centre gear driven one-level planet wheel is rotated; Because gear ring and main frame are fixed; So the one-level planet wheel is that the axis of speed reducer is rotated with primary planet carrier around the center line of gear ring also except that being rotated around self axis, primary planet carrier is rigidly connected through involute splines and secondary center gear again, so secondary center gear and primary planet carrier are rotated around the axis of speed reducer synchronously; And this speed is the speed after slowing down through one-level, and 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; Secondary planet wheel also is rotated with the axis of secondary planet frame around speed reducer except that being rotated around self axis, and the secondary planet frame is rigidly connected through involute splines and output gear shaft, and the rotating speed that finally is delivered to output gear is for passing through double reduction speed afterwards; Moment of torsion is turned round moment of torsion afterwards for increasing through two-stage, thereby realizes being input to by high speed low torque the function of low-speed big output.
Because primary planet carrier 12 is an integral body with secondary center gear 23 through the involute splines rigid joint, this integral body is floated and is installed under the output gear shaft, on the primary centre gear; Primary centre gear 11 is an integral body with braking coupling shaft 30 through the involute splines rigid joint; This integral body is floated and is installed under the secondary center gear, on the motor protecgulum, is reserved with the gap value of 1.5～2mm in theory with the motor protecgulum; Yet in the practical set process because these two integral body are unfixing on the speed reducer axial direction; Receive the self gravitation effect in addition, can cause braking coupling shaft 30 and push up on the motor protecgulum and cause interference, so the present invention is equipped with bearing 2 in the lower end of braking coupling shaft 30; Bearing 2 is a deep groove ball bearing; 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, is used for preventing the input of braking coupling shaft 30 axial floats and guaranteeing whole speed reducer and exports alignment.
The outside framework oil seal 27 with break inner chamber and the isolation of gear ring inner chamber is equipped with in the upper end sealing of described braking coupling shaft 30; Can carry out the isolation in two chambeies, prevent that transmission system is through long-term fatigue wear and the wear particle that produces and other impurity get into 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 the described output gear shaft 22 anti-dust seal 20 is arranged.Can prevent the intrusion of extraneous silt, can prevent the internal gear oil leakage again, prolong the working life of speed reducer effectively.
In actual manufacturing and assembly process owing to receive the influence of various accumulated errors; Back lash between output gear and revolution are supported during assembling might not guarantee the company standard of each main engine factory; And the user in actual use; Wearing and tearing through long-term work of the gearwheel that the output gear of rotary reducer and revolution are supported all can cause the increase of back lash, influences the rotating service behaviour of main frame.In order to remedy the generation of this problem; On described bearing support 17, be manufactured with a plurality of installation screw 17-1, between the symmetrical center line between the installation screw 17-1 and the medial axis of described output gear shaft 22 certain throw of eccentric arranged around a symmetrical center line circle distribution.The position of screw is installed through adjustment adjusts the centre distance of rotary reducer output gear and pivoting support gear, thereby reach the effect of adjustment back lash.Described throw of eccentric can be made as 1.5mm.
Claims (6)
1. upside-down rotary reducer; It comprises: power source (1); The break of mainly forming by adpting flange (3), piston (5), brake casing (26), spring (29), braking coupling shaft (30), friction stator (7) and friction moving plate (8); The gear of mainly forming by gear ring (13) and multi-stage planetary gear; And the power take-off mechanism of mainly forming by bearing support (17), output gear shaft (22) and output gear (21), it is characterized in that: described power source (1) is installed in the lower end of complete machine, and power source (1) top connects described break; 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 ring (13) and bearing support (17) are rigidly connected from bottom to top; Transmission system in the casing comprises described braking coupling shaft (30); The lower end key of braking coupling shaft (30) connects the pto of described power source (1); The upper end spline of braking coupling shaft (30) connects the planetary central gear of the first order; The planetary planet carrier of each grade is connected with the planetary central gear spline of the next stage on its top; The planetary planet carrier spline of afterbody connects described output gear shaft (22), and 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);
The outside framework oil seal (27) with break inner chamber and the isolation of gear ring inner chamber is equipped with in 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. upside-down rotary reducer according to claim 1 is characterized in that: between described dust cover (19) and the described output gear shaft (22) anti-dust seal (20) is arranged.
3. upside-down rotary reducer according to claim 1; It is characterized in that: a plurality of installation screws (17-1) around a symmetrical center line circle distribution are arranged on the described bearing support (17), between the symmetrical center line between the installation screw (17-1) and the medial axis of described output gear shaft (22) certain throw of eccentric is arranged.
4. upside-down rotary reducer according to claim 3 is characterized in that: described throw of eccentric is 1.5mm.
5. upside-down rotary reducer according to claim 1; It is characterized in that: break filler opening (28) and break fuel outlet (4) are arranged, on the described brake casing (26) with friction stator (7) and friction moving plate (8) place intracavity inter-connection.
6. upside-down rotary reducer according to claim 1 is characterized in that: lubricating cup (31) is housed on the 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 true CN102345709A (en) | 2012-02-08 |
| CN102345709B 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) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322168A (en) * | 2012-03-19 | 2013-09-25 | 沃德(天津)传动有限公司 | Speed reducer and sealing device thereof |
| CN103758938A (en) * | 2014-01-15 | 2014-04-30 | 徐州科源液压股份有限公司 | Slewing reducer for excavators |
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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322168A (en) * | 2012-03-19 | 2013-09-25 | 沃德(天津)传动有限公司 | Speed reducer and sealing device thereof |
| CN103322168B (en) * | 2012-03-19 | 2016-08-03 | 沃德(天津)传动有限公司 | Reductor and sealing device thereof |
| CN103758938A (en) * | 2014-01-15 | 2014-04-30 | 徐州科源液压股份有限公司 | Slewing reducer for excavators |
| CN103758938B (en) * | 2014-01-15 | 2016-08-24 | 徐州科源液压股份有限公司 | Excavator rotary reducer |
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| Publication number | Publication date |
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| CN102345709B (en) | 2014-01-08 |
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| C14 | Grant of patent or utility model | ||
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| C56 | Change in the name or address of the patentee |
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 |
Granted publication date: 20140108 Termination date: 20160720 |
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| CF01 | Termination of patent right due to non-payment of annual fee |