CN102182769B - Spring resetting type overrunning clutch for energy-conservation type loader - Google Patents
Spring resetting type overrunning clutch for energy-conservation type loader Download PDFInfo
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- CN102182769B CN102182769B CN2011100603170A CN201110060317A CN102182769B CN 102182769 B CN102182769 B CN 102182769B CN 2011100603170 A CN2011100603170 A CN 2011100603170A CN 201110060317 A CN201110060317 A CN 201110060317A CN 102182769 B CN102182769 B CN 102182769B
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Abstract
The invention relates to the technical field of engineering machinery transmission, in particular to a spring resetting type overrunning clutch for an energy-conservation type loader with low rotating speed. An inclined angle between a spring resetting hole and an inner ring cam ranges from 30 degrees to 34 degrees; the diameter of the spring resetting hole ranges from 4.49mm to 4.538mm, and the depth of the spring resetting hole ranges from 15mm to 15.1mm; and the cross section of a roller path wall is circular arc-shaped. The spring resetting type overrunning clutch has a simple structure, a low reduction ratio, large transmission torque, good overloading performance and long service life, is stable in working and safe and reliable, and is beneficial to realizing energy conservation and emission reduction of the domestic loader and improving the performances of the whole loader.
Description
Technical field
Patent of the present invention relates to engineering machinery drive technology field, relates in particular to a kind of spring reset formula free wheel device that is applicable to the energy-saving loader of the slow-speed of revolution.
Background technique
The aspects such as the gear teeth number of teeth, material and technical parameter of at present traditional spring reset formula free wheel device exist not enough.Chinese patent CN200620140960.9 discloses a kind of modified model transmission free wheel device, input shaft, cam and outer ring gear in the middle of it mainly comprises.The spring seat center hole changes Φ 1.0-Φ 1.2mm into by Φ 0.8mm, has strengthened the fluid ability of working medium and dirt, can reduce the deposition of rubbish at the spring seat inner chamber.But the described transmission free wheel device of this structure can not adapt to the requirement of the high pulling torque transmission of the energy-saving loader of the slow-speed of revolution, and the free wheel device internal structure receives very big infringement, causes the decline in its working life.
Summary of the invention
The present invention solves the deficiency that exists in the existing technology; Provide a kind of to the gear teeth number of teeth; Material, manufacturing process and structural parameter are optimized design, are that 5 tons of energy-saving loaders provide a kind of safe and reliable, the spring reset formula free wheel device that the overburdening performance is good.
Above-mentioned technical problem of the present invention mainly is able to solve through following technical proposals:
A kind of energy-saving loader is with spring reset formula free wheel device, and input shaft, outer ring gear, interior ring cam and roller in the middle of comprising are provided with roller between described interior ring cam and outer ring gear; Encircle on the cam in an end of input shaft is located in the middle of described; Be provided with the roller resetting-mechanism in the ring cam in described, described roller resetting-mechanism comprises spring reset hole, Returnning spring, spring seat and raceway wall, and the edge of described interior ring cam is provided with equally distributed raceway wall; Be provided with the spring reset hole in the described raceway wall; Described spring reset is provided with spring seat in the hole, and the bottom of described spring seat is provided with Returnning spring, and the upper end of described spring seat contacts with roller; The angle angle of described spring reset hole and interior ring cam is 30 degree～34 degree; The diameter in described spring reset hole is 4.49mm～4.538mm, and the hole depth in described spring reset hole is 15mm～15.1mm, and the cross section of described raceway wall is a circular arc.
The utilization modern computing technology is designed to 162kW with the rated power of free wheel device transmission, and the rated torque of transmission is designed to 2000Nm; The maximum (top) speed difference of middle input shaft and outer ring gear is designed to 1450r/min; The number of teeth of middle input shaft is designed to 32, is designed to 0.80 with the reduction speed ratio of initiatively importing secondary gear; The number of teeth of outer ring gear is designed to 51, is designed to 2.43 with the reduction speed ratio of initiatively importing the one-level gear; The material of middle input shaft and outer ring gear is preferably 20CrMnTiH3, and the surface hardness behind carburizing and quenching is 58～64HRC, and core hardness is 33～45HRC, and effective case depth is 1.0～1.3mm; Spring adopts the 65Mn steel wire, and its diameter is optimized for Ф 0.32mm, improves compressive strength more than 20%, length of spring compressed during to 10mm drag reach 2.88N; The raceway plane of interior ring cam and the angle in spring reset hole are optimized for 32 ° ± 2 °; Spring reset hole dimension precision optimizing is: diameter Ф 4.5+0.038-0.01mm; Hole depth 15+0.1 0mm has improved the stress of spring, reduces spring seat and spring hole clipping probability; The machining accuracy of vital part and thermal treatment quality adopt numerical control machine tool and program control continuous carbonization quenching apparatus to guarantee.Wherein, the Chinese of 20CrMnTiH3 is interpreted as: Kohlenstoffgehalt is the alloyed steel of 0.2% Cr-Mn-Ti Senior Three level hardenability.
The material of middle input shaft and outer ring gear is preferably 20CrMnTiH3; Surface hardness behind program control continuous oven carburizing and quenching is 58～64HRC; Core hardness is 33～45HRC, and effective case depth is 1.0～1.3mm, has improved the working strength and the working life of gear.
As preferably, described in the middle of the tooth number of input shaft be 32, middle input shaft is 0.8 with the reduction speed ratio of initiatively importing secondary gear, the number of teeth of described outer ring gear is 51, outer ring gear and the reduction speed ratio of initiatively importing the one-level gear are 2.43.51 of the outer ring gear numbers of teeth, with the reduction speed ratio of initiatively importing the one-level gear be 2.43, the gear teeth number of teeth of middle input shaft is 32, with the reduction speed ratio of initiatively importing secondary gear be 0.80.The maximum (top) speed difference of optimizing middle input shaft in back and outer ring gear still can be maintained 1450r/min, transmission rated power that can be safe and reliable.
As preferably, described in the left end of ring cam be provided with left back-up ring, an end of described left back-up ring touches with the end of roller mutually, the other end of described left back-up ring touches with middle input shaft mutually; The right-hand member of ring cam is provided with right back-up ring in described, and an end of described right back-up ring touches with the other end of roller mutually.
As preferably; The material of input shaft and outer ring gear is 20CrMnTiH3 in the middle of described, and the surface hardness of after heat treatment middle input shaft and outer ring gear is 58～64HRC, and core hardness is 33～45HRC; Effective case depth is 1.0～1.3mm; One end of described raceway wall stretches out and is provided with the raceway plane, is provided with 20 pairs of raceway walls and raceway plane in the described interior ring cam, and the angle angle of spring reset hole and interior ring cam is 32 degree.
As preferably, the material of described Returnning spring is the 65Mn Spring Steel Wire, and the diameter of Returnning spring is 0.32mm, and the drag when Returnning spring is compressed to 10mm is 2.88N.After Returnning spring selects for use diameter to be the 65Mn high-quality Spring Steel Wire of Ф 0.32mm, improve compressive strength more than 20%, drag reached 2.88N when Returnning spring was compressed to 10mm, helped the raising in spring fatigue resistance and working life
Use this spring reset formula free wheel device; The engine speed of selecting for use drops to 2000r/min by former 2200r/min; Can practice thrift 13～15% oil consumption, reduce by 13～15% CO 2 waste gas discharging simultaneously, the corresponding increasing of moment of torsion that free wheel device transmits; Bring up to 6000Nm by 4500Nm, improved the bearing capacity and the overburdening performance of loader.
Can promote the use of in the wheel loader of multiple tonnages such as 4 tons, 5 tons, 6 tons, transmitting torque is bigger.Except that the material of input shaft in the middle of changing and outer ring gear, the number of teeth and with the reduction speed ratio of active engaging gear; The spring reset structure and the feature dimension that have kept original technology, cost of production almost do not increase, but its bearing capacity can improve more than 30%; And can assist realization loader oil-saving discharging-reducing 13～15%; Can reach 6000 hours working life, improves 2 times, has high cost performance.
Therefore, energy-saving loader of the present invention is with spring reset formula free wheel device, and simple in structure, reduction speed ratio is low; Transmitting torque is big, has good overburdening performance, stable working; Safe and reliable, long service life helps homemade loader to realize the raising of energy-saving and emission-reduction and complete machine performance.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structure for amplifying schematic representation of roller resetting-mechanism among the present invention;
Fig. 3 is the structure for amplifying schematic representation of inner circular tooth wheel among the present invention.
Embodiment
Pass through embodiment below, and combine accompanying drawing, do further bright specifically technological scheme of the present invention.
Embodiment 1: like Fig. 1, Fig. 2 and shown in Figure 3, a kind of energy-saving loader comprises middle input shaft 1, outer ring gear 2, interior ring cam 3 and roller 4 with spring reset formula free wheel device; Described interior ring cam 3 and 2 of outer ring gears are provided with roller 4, on the ring cam 3, are provided with the roller resetting-mechanism in the described interior ring cam 3 in an end of described middle input shaft 1 is located at; Described roller resetting-mechanism comprises spring reset hole 5, Returnning spring 6, spring seat 7 and raceway wall 8, and the edge of described interior ring cam 3 is provided with equally distributed raceway wall 8, is provided with spring reset hole 5 in the described raceway wall 8; Be provided with spring seat 7 in the described spring reset hole 5; The bottom of described spring seat 7 is provided with Returnning spring 6, and the upper end of described spring seat 7 contacts with roller 4, and described spring reset hole 5 is 30 degree with the angle angle of interior ring cam 3; The diameter in described spring reset hole 5 is 4.49mm; The hole depth in described spring reset hole 5 is 15mm, and the cross section of described raceway wall 8 is a circular arc, and the tooth number of described middle input shaft 1 is 32; Middle input shaft 1 is 0.8 with the reduction speed ratio of initiatively importing secondary gear; The number of teeth of described outer ring gear 2 is 51, and outer ring gear 2 is 2.43 with the reduction speed ratio of initiatively importing the one-level gear, and the left end of described interior ring cam 3 is provided with left back-up ring 9; One end of described left back-up ring 9 touches with the end of roller 4 mutually, and the other end of described left back-up ring 9 touches with middle input shaft 1 mutually; The right-hand member of ring cam 3 is provided with right back-up ring 10 in described; One end of described right back-up ring 10 touches with the other end of roller 4 mutually, and the material of described middle input shaft 1 and outer ring gear 2 is 20CrMnTiH3, and the surface hardness of after heat treatment middle input shaft 1 and outer ring gear 2 is 59HRC; Core hardness is 35HRC; Effective case depth is 1.1mm, and an end of described raceway wall 8 stretches out and is provided with raceway plane 11, is provided with 20 pairs of raceway walls 8 and raceway plane 11 in the described interior ring cam; Spring reset hole 5 is 32 degree with the angle angle of interior ring cam 3; The material of described Returnning spring 6 is the 65Mn Spring Steel Wire, and the diameter of Returnning spring 6 is 0.32mm, Returnning spring 6 be compressed to 10mm the time drag be 2.88N.
Effect: the tooth number of input shaft 1 is 32 in the middle of described; Middle input shaft 1 is 0.8 with the reduction speed ratio of initiatively importing secondary gear; The number of teeth of described outer ring gear 2 is 51; Outer ring gear 2 can be complementary with the energy-saving loader of the slow-speed of revolution after being 2.43 with the reduction speed ratio of initiatively importing the one-level gear, reliable delivery rated power 162kW, transmission rated torque 2000Nm.Described spring reset hole 5 is 30 degree with the angle angle of interior ring cam 3; The diameter in described spring reset hole 5 is 4.49mm; After the hole depth in described spring reset hole 5 is 15mm, improve the stress of spring, reduced spring seat 7 and Returnning spring 6 hole clipping probability 25%; The material of input shaft 1 and outer ring gear 2 is 20CrMnTiH3 in the middle of described; The surface hardness of input shaft 1 and outer ring gear 2 is 59HRC after heat treatment; Core hardness is 35HRC; After effective case depth is 1.1mm, increase the working strength and the wear resistance of gear, improved 1.5 times of working lifes.The material of described Returnning spring 6 is the 65Mn Spring Steel Wire, and the diameter of Returnning spring is 0.32mm, and the drag when Returnning spring is compressed to 10mm is 2.88N.After Returnning spring selects for use diameter to be the 65Mn high-quality Spring Steel Wire of Ф 0.32mm, improve compressive strength more than 20%, drag reached 2.88N when Returnning spring was compressed to 10mm, helped the raising in spring fatigue resistance and working life.
Embodiment 2: like Fig. 1, Fig. 2 and shown in Figure 3, a kind of energy-saving loader comprises middle input shaft 1, outer ring gear 2, interior ring cam 3 and roller 4 with spring reset formula free wheel device; Described interior ring cam 3 and 2 of outer ring gears are provided with roller 4, on the ring cam 3, are provided with the roller resetting-mechanism in the described interior ring cam 3 in an end of described middle input shaft 1 is located at; Described roller resetting-mechanism comprises spring reset hole 5, Returnning spring 6, spring seat 7 and raceway wall 8, and the edge of described interior ring cam 3 is provided with equally distributed raceway wall 8, is provided with spring reset hole 5 in the described raceway wall 8; Be provided with spring seat 7 in the described spring reset hole 5; The bottom of described spring seat 7 is provided with Returnning spring 6, and the upper end of described spring seat 7 contacts with roller 4, and described spring reset hole 5 is 32 degree with the angle angle of interior ring cam 3; The diameter in described spring reset hole 5 is 4.515mm; The hole depth in described spring reset hole 5 is 15.05mm, and the cross section of described raceway wall 8 is a circular arc, and the tooth number of described middle input shaft 1 is 32; Middle input shaft 1 is 0.8 with the reduction speed ratio of initiatively importing secondary gear; The number of teeth of described outer ring gear 2 is 51, and outer ring gear 2 is 2.43 with the reduction speed ratio of initiatively importing the one-level gear, and the left end of described interior ring cam 3 is provided with left back-up ring 9; One end of described left back-up ring 9 touches with the end of roller 4 mutually, and the other end of described left back-up ring 9 touches with middle input shaft 1 mutually; The right-hand member of ring cam 3 is provided with right back-up ring 10 in described; One end of described right back-up ring 10 touches with the other end of roller 4 mutually; The material of input shaft 1 and outer ring gear 2 is 20CrMnTiH3 in the middle of described, and the surface hardness of after heat treatment middle input shaft 1 and outer ring gear 2 is 61HRC, and core hardness is 39HRC; Effective case depth is 1.2mm; The material of described Returnning spring 6 is the 65Mn Spring Steel Wire, and the diameter of Returnning spring 6 is 0.32mm, Returnning spring 6 be compressed to 10mm the time drag be 2.88N.
Effect: the tooth number of input shaft 1 is 32 in the middle of described; Middle input shaft 1 is 0.8 with the reduction speed ratio of initiatively importing secondary gear; The number of teeth of described outer ring gear 2 is 51; Outer ring gear 2 can be complementary with the energy-saving loader of the slow-speed of revolution after being 2.43 with the reduction speed ratio of initiatively importing the one-level gear, reliable delivery rated power 162kW, transmission rated torque 2000Nm.Described spring reset hole 5 is 32 degree with the angle angle of interior ring cam 3; The diameter in described spring reset hole 5 is 4.515mm; After the hole depth in described spring reset hole 5 is 15.05mm, improve the stress of spring, reduced spring seat and spring hole clipping probability 45%; The material of input shaft 1 and outer ring gear 2 is 20CrMnTiH3 in the middle of described; The surface hardness of input shaft 1 and outer ring gear 2 is 61HRC after heat treatment; Core hardness is 39HRC; After effective case depth is 1.2mm, further increase the working strength and the wear resistance of gear, improved about 2 times of working lifes.The material of described Returnning spring is the 65Mn Spring Steel Wire, and the diameter of Returnning spring is 0.32mm, and the drag when Returnning spring is compressed to 10mm is 2.88N.After Returnning spring selects for use diameter to be the 65Mn high-quality Spring Steel Wire of Ф 0.32mm, improve compressive strength more than 20%, drag reached 2.88N when Returnning spring was compressed to 10mm, helped the raising in spring fatigue resistance and working life.
Embodiment 3: like Fig. 1, Fig. 2 and shown in Figure 3, a kind of energy-saving loader comprises middle input shaft 1, outer ring gear 2, interior ring cam 3 and roller 4 with spring reset formula free wheel device; Described interior ring cam 3 and 2 of outer ring gears are provided with roller 4, on the ring cam 3, are provided with the roller resetting-mechanism in the described interior ring cam 3 in an end of described middle input shaft 1 is located at; Described roller resetting-mechanism comprises spring reset hole 5, Returnning spring 6, spring seat 7 and raceway wall 8, and the edge of described interior ring cam 3 is provided with equally distributed raceway wall 8, is provided with spring reset hole 5 in the described raceway wall 8; Be provided with spring seat 7 in the described spring reset hole 5; The bottom of described spring seat 7 is provided with Returnning spring 6, and the upper end of described spring seat 7 contacts with roller 4, and described spring reset hole 5 is 34 degree with the angle angle of interior ring cam 3; The diameter in described spring reset hole 5 is 4.538mm; The hole depth in described spring reset hole 5 is 15.1mm, and the cross section of described raceway wall 8 is a circular arc, and the tooth number of described middle input shaft 1 is 32; Middle input shaft 1 is 0.8 with the reduction speed ratio of initiatively importing secondary gear; The number of teeth of described outer ring gear 2 is 51, and outer ring gear 2 is 2.43 with the reduction speed ratio of initiatively importing the one-level gear, and the left end of described interior ring cam 3 is provided with left back-up ring 9; One end of described left back-up ring 9 touches with the end of roller 4 mutually, and the other end of described left back-up ring 9 touches with middle input shaft 1 mutually; The right-hand member of ring cam 3 is provided with right back-up ring 10 in described; One end of described right back-up ring 10 touches with the other end of roller 4 mutually; The material of input shaft 1 and outer ring gear 2 is 20CrMnTiH3 in the middle of described, and the surface hardness of after heat treatment middle input shaft 1 and outer ring gear 2 is 64HRC, and core hardness is 45HRC; Effective case depth is 1.3mm; The material of described Returnning spring 6 is the 65Mn Spring Steel Wire, and the diameter of Returnning spring 6 is 0.32mm, Returnning spring 6 be compressed to 10mm the time drag be 2.88N.
Effect: the tooth number of input shaft 1 is 32 in the middle of described; Middle input shaft 1 is 0.8 with the reduction speed ratio of initiatively importing secondary gear; The number of teeth of described outer ring gear 2 is 51; Outer ring gear 2 can be complementary with the energy-saving loader of the slow-speed of revolution after being 2.43 with the reduction speed ratio of initiatively importing the one-level gear, reliable delivery rated power 162kW, transmission rated torque 2000Nm.Described spring reset hole 5 is 34 degree with the angle angle of interior ring cam 3; The diameter in described spring reset hole 5 is 4.538mm; After the hole depth in described spring reset hole 5 is 15.1mm, improve the stress of spring, reduced spring seat and spring hole clipping probability 35%; The material of input shaft 1 and outer ring gear 2 is 20CrMnTiH3 in the middle of described; The surface hardness of input shaft 1 and outer ring gear 2 is 64HRC after heat treatment; Core hardness is 45HRC; After effective case depth is 1.3mm, further increase the working strength and the wear resistance of gear, improved working life more than 2 times.The material of described Returnning spring is the 65Mn Spring Steel Wire, and the diameter of Returnning spring is 0.32mm, and the drag when Returnning spring is compressed to 10mm is 2.88N.After Returnning spring selects for use diameter to be the 65Mn high-quality Spring Steel Wire of Ф 0.32mm, improve compressive strength more than 20%, drag reached 2.88N when Returnning spring was compressed to 10mm, helped the raising in spring fatigue resistance and working life.
Claims (4)
1. an energy-saving loader is with spring reset formula free wheel device; Input shaft (1), outer ring gear (2), interior ring cam (3) and roller (4) in the middle of comprising; Be provided with roller (4) between ring cam (3) and outer ring gear (2) in described; On the ring cam (3), it is characterized in that in an end of input shaft (1) is located in the middle of described: be provided with the roller resetting-mechanism in the ring cam (3) in described, described roller resetting-mechanism comprises spring reset hole (5), Returnning spring (6), spring seat (7) and raceway wall (8); The edge of ring cam (3) is provided with equally distributed raceway wall (8) in described; One end of described raceway wall (8) stretches out and is provided with raceway plane (11), is provided with spring reset hole (5) in the described raceway wall (8), is provided with spring seat (7) in the described spring reset hole (5); The bottom of described spring seat (7) is provided with Returnning spring (6); The upper end of described spring seat (7) contacts with roller (4), and raceway plane (11) the angle angle of the axis in described spring reset hole (5) and interior ring cam (3) is 30 degree～34 degree, and the diameter in described spring reset hole (5) is 4.49mm～4.538mm; The hole depth in described spring reset hole (5) is 15mm～15.1mm, and the cross section of described raceway wall (8) is a circular arc; The tooth number of input shaft (1) is 32 in the middle of described; Middle input shaft (1) is 0.8 with the reduction speed ratio of initiatively importing secondary gear; The number of teeth of described outer ring gear (2) is 51; Outer ring gear (2) is 2.43 with the reduction speed ratio of initiatively importing the one-level gear, and the material of described middle input shaft (1) and outer ring gear (2) is 20CrMnTiH3, and the surface hardness of after heat treatment middle input shaft (1) and outer ring gear (2) is 58～64HRC; Core hardness is 33～45HRC, and effective case depth is 1.0～1.3mm.
2. energy-saving loader according to claim 1 is with spring reset formula free wheel device; It is characterized in that: the left end of ring cam (3) is provided with left back-up ring (9) in described; One end of described left back-up ring (9) touches with the end of roller (4) mutually, and the other end of described left back-up ring (9) touches with middle input shaft (1) mutually; The right-hand member of ring cam (3) is provided with right back-up ring (10) in described, and an end of described right back-up ring (10) touches with the other end of roller (4) mutually.
3. energy-saving loader according to claim 1 and 2 is with spring reset formula free wheel device; It is characterized in that: be provided with 20 raceway walls (8) and 20 raceway planes (11) in the ring cam in described, raceway plane (11) the angle angle of the axis of spring reset hole (5) and interior ring cam (3) is 32 degree.
4. energy-saving loader according to claim 1 and 2 is with spring reset formula free wheel device; It is characterized in that: the material of described Returnning spring (6) is the 65Mn Spring Steel Wire; The diameter of Returnning spring (6) is 0.32mm, and the drag of Returnning spring (6) when being compressed to 10mm is 2.88N.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100603170A CN102182769B (en) | 2011-03-14 | 2011-03-14 | Spring resetting type overrunning clutch for energy-conservation type loader |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100603170A CN102182769B (en) | 2011-03-14 | 2011-03-14 | Spring resetting type overrunning clutch for energy-conservation type loader |
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| CN102182769A CN102182769A (en) | 2011-09-14 |
| CN102182769B true CN102182769B (en) | 2012-11-14 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102367842A (en) * | 2011-11-03 | 2012-03-07 | 涂鹏远 | Tu's high-sensitivity overrunning clutch |
| CN106545597A (en) * | 2016-12-21 | 2017-03-29 | 宁波市镇海捷登应用技术研究所 | A kind of freewheel clutch that can increase the service life |
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|---|---|---|---|---|
| US3012645A (en) * | 1958-04-30 | 1961-12-12 | Gensheimer Heinrich | Ratchet-type friction coupling with clamping rollers |
| US5595272A (en) * | 1995-04-25 | 1997-01-21 | The Timken Company | Unidirectional clutch |
| CN200989399Y (en) * | 2006-12-12 | 2007-12-12 | 杭州宗兴齿轮有限公司 | Improved overdrive clutch |
| CN201437826U (en) * | 2009-04-27 | 2010-04-14 | 杭州宗兴齿轮有限公司 | Angle optimization for spring reset hole |
| CN201561076U (en) * | 2009-11-12 | 2010-08-25 | 杭州宗兴齿轮有限公司 | Novel spring reset overrunning clutch |
| CN202007842U (en) * | 2011-03-14 | 2011-10-12 | 杭州宗兴齿轮有限公司 | Spring reset type overrunning clutch used for energy-saving loading machine |
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2011
- 2011-03-14 CN CN2011100603170A patent/CN102182769B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3012645A (en) * | 1958-04-30 | 1961-12-12 | Gensheimer Heinrich | Ratchet-type friction coupling with clamping rollers |
| US5595272A (en) * | 1995-04-25 | 1997-01-21 | The Timken Company | Unidirectional clutch |
| CN200989399Y (en) * | 2006-12-12 | 2007-12-12 | 杭州宗兴齿轮有限公司 | Improved overdrive clutch |
| CN201437826U (en) * | 2009-04-27 | 2010-04-14 | 杭州宗兴齿轮有限公司 | Angle optimization for spring reset hole |
| CN201561076U (en) * | 2009-11-12 | 2010-08-25 | 杭州宗兴齿轮有限公司 | Novel spring reset overrunning clutch |
| CN202007842U (en) * | 2011-03-14 | 2011-10-12 | 杭州宗兴齿轮有限公司 | Spring reset type overrunning clutch used for energy-saving loading machine |
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Address after: 311256 Xinxia Road, Yiqiao Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Zongxing Technology Co.,Ltd. Address before: 311256 Xinxia Road, Yiqiao Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU ZONGXING GEAR Co.,Ltd. |
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Denomination of invention: Spring return overrunning clutch for energy-saving loader Effective date of registration: 20221102 Granted publication date: 20121114 Pledgee: Zhejiang Xiaoshan rural commercial bank Limited by Share Ltd. Yi Bridge Branch Pledgor: Hangzhou Zongxing Technology Co.,Ltd. Registration number: Y2022330002887 |
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