CN100356069C - Water cooled type motor cycle engine water pump and its actuating mechanism - Google Patents
Water cooled type motor cycle engine water pump and its actuating mechanism Download PDFInfo
- Publication number
- CN100356069C CN100356069C CNB2004100071836A CN200410007183A CN100356069C CN 100356069 C CN100356069 C CN 100356069C CN B2004100071836 A CNB2004100071836 A CN B2004100071836A CN 200410007183 A CN200410007183 A CN 200410007183A CN 100356069 C CN100356069 C CN 100356069C
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- water pump
- water
- bearing
- pump body
- crankcase
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Abstract
The present invention relates to a water pump for a water-cooling motorcycle engine and a starting mechanism thereof. The water pump of a water-cooling motorcycle engine is improved based on an integral water pump of an engine. The present invention is characterized in that A. two sealing rings 7 or 8 installed in an excircle ring groove of a water pump body 2 are respectively positioned on two cylindrical surfaces whose diameters are different, and an oil drain hole 11 is arranged between the two sealing rings; B. a water pump shaft 3 installed at the reverse-direction end of an impeller 1 is provided with a bearing support, and a bearing 16 in the bearing support is supported in a bearing seat of a crankcase 17; C. a driven gear 6 sheathed on the water pump shaft is positioned between a bearing 14 in the water pump body, and the bearing in the crankcase; D. an engine crankshaft 19 is provided with a driving gear 21 and a driving gear 5 of the water pump, and the driving gear 5 of the water pump is engaged with the driven gear 6. The present invention overcomes a wobbling defect when the water pump shaft works, the abrasion among components is reduced, and the water pumping quantity of the engine can be changed by adjusting the transmission ratio of a gear pair.
Description
Technical field
The present invention relates to a kind of vehicle transmission gear, especially a kind of water-cooled motorcycle engine water pump and starting mechanism thereof.
Background technique
At present, the water-cooled engine water pump is mainly by water pump spindle, impeller, mechanical type water seal rotating ring, the mechanical type water sealing stationary ring, bearing, water pump body, seal ring, compositions such as water pump cover, because the water pump body profile is two sections cylindrical bodys that diameter is different, 1～2 seal ring is housed on the roundlet cylinder of same diameter, close because of the pump housing mounting hole diameter on roundlet cylinder diameter and the crankcase cover again, when water pump body is installed in the pump housing mounting hole of crankcase cover, will inevitably scratch the seal ring of water pump body with the spill port on the crankcase cover of the corresponding cooperation of small column face, cause sealing effect to descend.In addition, water pump spindle one end of this water pump is installed impeller, and the other end stretches out outside the water pump body, on the water pump spindle of the section of stretching out driven gear is installed.Because water pump spindle is mainly by being installed in a bearing supporting in the water pump body, therefore it is a kind of lever construction that has only a fulcrum, when the engine crankshaft transferring power, it is that fulcrum is swung with this bearing that water pump spindle is subjected to the radial force effect inevitable, this swing not only can make driven gear produce deflection thereupon swinging, and causes the accuracy of mesh of gear pair to be destroyed, and, this swing also can make contact stress local between the dynamic and static ring of water-sealed component strengthen, and excessive wear occurs.Simultaneously, this swing of water pump spindle also can cause water pump vane collision, friction water pump cover, so not only can produce noise and reduction of service life, and, also greatly reduce the water pumping efficiency of water pump.
The starting of tradition motorcycle engine water pump is the driven gear on the water pump spindle that drive is engaged with by the driving gear on the engine crankshaft, and water pump spindle is rotated.Because the driving gear on the engine crankshaft not only will be with the transmission of power feed pump shaft, but also will be transmission of power to the deep bid gear on the clutch, perhaps pass to the machine oil pump shaft, therefore, original driving gear can not be changed easily on the bent axle, thereby can not adjust the velocity ratio between the driving gear on the driven gear and bent axle on the water pump spindle, so can not recently change the pump water yield of motor by the transmission that changes gear pair.
Summary of the invention
One of purpose of the present invention provides a kind of water pump spindle and does not swing, and is easy to the water-cooled motorcycle engine water pump installing, seal.
Two of purpose of the present invention provides a kind of starting mechanism of adjusting the engine water pump of gear pair velocity ratio.
Concrete scheme of the present invention is: a kind of water-cooled motorcycle engine water pump, bearing is installed in water pump body, oil sealing, the stationary ring combination of mechanical type water seal, water pump spindle passes bearing, the center hole of the stationary ring combination of oil sealing and mechanical type water seal is installed impeller at axle head, the port of impeller is equipped with mechanical type water seal rotating ring, impeller outer is covered with water pump cover, this water pump cover is through being bolted on the crankcase cover, water pump body is installed in the pump housing mounting hole of engine crankshaft case lid, in the annular groove of water pump body cylindrical, seal ring is housed, draining hole on the water pump body is corresponding with the draining hole on the crankcase cover, the invention main points are: A. is installed in two seal rings in the water pump body annular groove outside and lays respectively on the different cylndrical surface of two diameters, be provided with the draining hole between two seal rings, this draining hole is positioned on the intermediate cylindrical of water pump body; B., the water pump spindle that the backward end of impeller is installed is provided with the bearing supporting.
The starting mechanism of water-cooled motorcycle engine water pump of the present invention, comprise the crankcase that links to each other with crankcase cover, be installed in the driving gear on the engine crankshaft and be sleeved on driven gear and circlip on the water pump spindle, the invention main points are: A. is provided with the water pump axle head installation shaft of bearing supporting and holds, and this bearing is supported in the bearing support of crankcase; B. between the bearing and the bearing in the crankcase of described driven gear in water pump body, and near the water pump body inner bearing; C. be set with on the engine crankshaft of driving gear the water pump driving gear also is installed, this water pump driving gear and the driven gear engagement that is contained on the water pump spindle.
The present invention changes two supportings into by a supporting, and its lever construction has become the overhanging beam structure, and the driven gear of water pump is between two block bearings.When the driven gear rotation made water pump spindle be subjected to the radial force of its axis, this water pump spindle can not swung.Deficiency of the prior art, nature has all been overcome.From meticulousr aspect, because the relative position of driven gear does not have to change substantially, that is to say that this driven gear is not in the middle of two bearings, so the rich degree value that has influence on overhanging beam section part almost can not be measured.Therefore, the present invention has not only overcome deficiency of the prior art, and prolonged its working life.And, can process the gap design of its impeller and water pump cover very for a short time, thereby improve water pumping efficiency.
The present invention is placed on the seal ring on the water pump body annular groove outside on the different cylndrical surface of two diameters, and the diameter that makes intermediate cylindrical is greater than the external diameter after installing seal ring on the smallest cylinder, also in intermediate cylindrical and bevelling, smallest cylinder joint.So when mounted, need littler by the seal ring external diameter of the spill port on the crankcase cover than the internal diameter of this section mounting hole, so, can not produce the problem of scratch seal ring, sealing effect has obtained reliable assurance naturally.
The present invention is on the basis that does not change the driving gear structure on the former engine crankshaft, the water pump driving gear that can conveniently install and remove, replace of new installation, this gear is installed on the extension of engine crankshaft 19, this gear is exclusively used in the starting water pump spindle, driven gear engagement on this gear and the water pump spindle, can change this number of teeth on demand to gear, do not change distance of shaft centers, thereby adjust the velocity ratio between driven gear and the driving gear, reach by adjusting the velocity ratio of gear pair, improve the purpose of the pump water yield of motor.
Remarkable result of the present invention is: the water pumping efficiency height, and water pump spindle can not swung in pump during work, and each component is difficult for excessive wear, and is easy for installation, and good seal performance can recently change the pump water yield of motor by the transmission of adjusting gear pair.In addition, prolonged working life, noise is less.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the partial enlarged drawing of water pump and correlated parts thereof among Fig. 1.
Fig. 3 is the left view of water pump body 2 greatest circle styletables among Fig. 1.
Embodiment
Please see Figure 1: the starting mechanism that the present invention includes water pump and this water pump, wherein water pump is the whole water pump of a kind of water-cooled, it mainly is made up of water pump cover 12, impeller 1, water pump body 2, water pump spindle 3, mechanical type water sealing stationary ring combination 4, seal ring 7, seal ring 8, oil sealing 9, mechanical type water seal rotating ring 10, axially locating circle 13, bearing 14, bearing 16, and it is contained in the crankcase cover 18; The starting mechanism of described water pump is mainly by crankcase 17, compositions such as the driving gear 21 on engine crankshaft 19, water pump driving gear 5, the former bent axle, driven gear 6 and circlip 15, and it connects with water pump by a pair of gear engagement.
As shown in Figure 1: bearing 14 is installed in water pump body 2, oil sealing 9, the stationary ring combination 4 of mechanical type water seal, water pump spindle 3 passes bearing 14, the center hole of the stationary ring combination 4 of oil sealing 9 and mechanical type water seal is installed impeller 1 at axle head, the port of impeller 1 is equipped with mechanical type water seal rotating ring 10, impeller 1 is covered with water pump cover 12, this water pump cover 12 is through being bolted on the crankcase cover 18, water pump body 2 is installed in the pump housing mounting hole of engine crankshaft case lid 18, seal ring 7 is housed in the annular groove of water pump body 2 cylindricals, 8, draining hole 11 on the water pump body 2 is corresponding with the draining hole 11 ' on the crankcase cover 18, improvements of the present invention are: A. is installed in two seal rings 7 or 8 in water pump body 2 annular groove outsides and lays respectively on the different cylndrical surface of two diameters, at two seal rings 7, be provided with draining hole 11 between 8, this draining hole 11 is positioned on the intermediate cylindrical of water pump body 2; B., the water pump spindle 3 that the backward end of impeller 1 is installed is provided with the bearing supporting.
As shown in Figure 2: the diameter of described water pump body 2 intermediate cylindricals is greater than the external diameter after installing seal ring 8 on the smallest cylinder of water pump body 2, and there is the oblique angle intermediate cylindrical and smallest cylinder joint.
As shown in Figure 3: the radially boss 20 on the water pump body 2 is positioned on the greatest circle cylinder of water pump body 2, in the maximum cylinder outside of water pump body 2 axially locating circle 13 is installed.Water pump body 2 is prevented to radially wobble by boss 20 radial locations, and by positioning ring 13 axially locating, restrictive axial moves.
Also can see from Fig. 1: the starting mechanism of described water-cooled motorcycle engine water pump, comprise the crankcase 17 that links to each other with crankcase cover 18, be installed in the driving gear 21 on the engine crankshaft 19 and be sleeved on driven gear 6 and circlip 15 on the water pump spindle 3, the improvement that the present invention did is: A. is provided with water pump spindle 3 ends of bearing supporting bearing 16 is installed, and this bearing 16 is supported in the bearing support of crankcase 17; B. between the bearing 14 and the bearing 16 in the crankcase 17 of described driven gear 6 in water pump body 2, and near water pump body inner bearing 14; C. be set with on the engine crankshaft 19 of driving gear 21 water pump driving gear 5 also is installed, this water pump driving gear 5 and driven gear 6 engagements that are contained on the water pump spindle 3.This independently exists gear, can adjust velocity ratio according to the motor needs, changes the pump water yield.
Working principle of the present invention is: when engine rotation, the water pump driving gear 5 on the engine crankshaft 19 drives driven gear 6 and rotates, and driven gear 6 drives water pump spindle 3 and rotates, and the impeller 1 of water pump spindle axle head is with outside the water pump water outlet pump cover in the water pump body 2.
Claims (4)
1. water-cooled motorcycle engine water pump, bearing (14) is installed in water pump body (2), oil sealing (9), the stationary ring combination (4) of mechanical type water seal, water pump spindle (3) passes bearing (14), the center hole of the stationary ring combination (4) of oil sealing (9) and mechanical type water seal is installed impeller (1) at axle head, the port of impeller (1) is equipped with mechanical type water seal rotating ring (10), impeller (1) is covered with water pump cover (12), this water pump cover (12) is through being bolted on the crankcase cover (18), water pump body (2) is installed in the pump housing mounting hole of engine crankshaft case lid (18), in the annular groove of water pump body (2) cylindrical, seal ring (7 is housed, 8), draining hole (11) on the water pump body (2) is corresponding with the draining hole (11) on the crankcase cover (18), it is characterized in that: A. is installed in two seal rings (7 or 8) in water pump body (2) annular groove outside and lays respectively on the different cylndrical surface of two diameters, at two seal rings (7,8) be provided with draining hole (11) between, this draining hole (11) is positioned on the intermediate cylindrical of water pump body (2); B., the water pump spindle (3) that the backward end of impeller (1) is installed is provided with the bearing supporting.
2. water-cooled motorcycle engine water pump according to claim 1, it is characterized in that: the diameter of described water pump body (2) intermediate cylindrical is greater than the external diameter after installing seal ring (8) on the smallest cylinder of water pump body (2), and there is the oblique angle intermediate cylindrical and smallest cylinder joint.
3. water-cooled motorcycle engine water pump according to claim 1 and 2, it is characterized in that: the radially boss (20) on the water pump body (2) is positioned on the greatest circle cylinder of water pump body (2), in the maximum cylinder outside of water pump body (2) axially locating circle (13) is installed.
4. the starting mechanism of a water-cooled motorcycle engine water pump as claimed in claim 1, comprise the crankcase (17) that links to each other with crankcase cover (18), be installed in the driving gear (21) on the engine crankshaft (19) and be sleeved on driven gear (6) and circlip (15) on the water pump spindle (3), it is characterized in that: A. is provided with water pump spindle (3) end of bearing supporting bearing (16) is installed, and this bearing (16) is supported in the bearing support of crankcase (17); B. described driven gear (6) is positioned between the bearing (16) of the bearing (14) of water pump body (2) and crankcase (17), and near water pump body inner bearing (14); C. be set with on the engine crankshaft (19) of driving gear (21) water pump driving gear (5) also is installed, this water pump driving gear (5) and driven gear (6) engagement that is contained on the water pump spindle (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100071836A CN100356069C (en) | 2003-12-30 | 2004-02-26 | Water cooled type motor cycle engine water pump and its actuating mechanism |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200320104790 | 2003-12-30 | ||
| CN200320104790.5 | 2003-12-30 | ||
| CNB2004100071836A CN100356069C (en) | 2003-12-30 | 2004-02-26 | Water cooled type motor cycle engine water pump and its actuating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1556331A CN1556331A (en) | 2004-12-22 |
| CN100356069C true CN100356069C (en) | 2007-12-19 |
Family
ID=34378855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100071836A Expired - Fee Related CN100356069C (en) | 2003-12-30 | 2004-02-26 | Water cooled type motor cycle engine water pump and its actuating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100356069C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715352B (en) * | 2016-04-15 | 2018-11-02 | 力帆实业(集团)股份有限公司 | Water-cooling structure based on water-cooled engine |
| CN109538490A (en) * | 2019-01-09 | 2019-03-29 | 浙江维新汽车配件有限公司 | A kind of automobile cooling water pump |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155616A (en) * | 1995-06-29 | 1997-07-30 | 雅马哈发动机株式会社 | Pump arrangement of engine |
| CN2463219Y (en) * | 2001-02-06 | 2001-12-05 | 重庆力帆轰达实业(集团)有限公司 | Water-cooled engine |
| CN2573692Y (en) * | 2002-10-15 | 2003-09-17 | 重庆力帆实业（集团）有限公司 | Cooling device of vertical water-cooled engine |
-
2004
- 2004-02-26 CN CNB2004100071836A patent/CN100356069C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1155616A (en) * | 1995-06-29 | 1997-07-30 | 雅马哈发动机株式会社 | Pump arrangement of engine |
| CN2463219Y (en) * | 2001-02-06 | 2001-12-05 | 重庆力帆轰达实业(集团)有限公司 | Water-cooled engine |
| CN2573692Y (en) * | 2002-10-15 | 2003-09-17 | 重庆力帆实业（集团）有限公司 | Cooling device of vertical water-cooled engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1556331A (en) | 2004-12-22 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: LIFAN INDUSTRIAL (GROUP) CO. Free format text: FORMER NAME OR ADDRESS: CHONGQING LIFAN INDUSTRY ( GROUP ) CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Chongqing city Shapingba District zhangjiewan Bridge No. 60 Patentee after: Lifan Industry (Group) Co., Ltd. Address before: Chongqing city Shapingba District zhangjiewan Bridge No. 60 Patentee before: Chongqing Lifan Industrial (Group) Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20200226 |
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| CF01 | Termination of patent right due to non-payment of annual fee |