CN202479997U - Positioning tool for engine camshaft - Google Patents
Positioning tool for engine camshaft Download PDFInfo
- Publication number
- CN202479997U CN202479997U CN2012200686012U CN201220068601U CN202479997U CN 202479997 U CN202479997 U CN 202479997U CN 2012200686012 U CN2012200686012 U CN 2012200686012U CN 201220068601 U CN201220068601 U CN 201220068601U CN 202479997 U CN202479997 U CN 202479997U
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- cam shaft
- opening
- camshaft
- location
- plate
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Abstract
The utility model provides a positioning tool for an engine camshaft, and belongs to the technical field of engines. The positioning tool solves the technical problems that an existing positioning tool is complicated in structure, inconvenient to operate, low in precision and the like. The camshaft comprises an intake camshaft and an exhaust camshaft, the positioning tool can be arranged between the intake camshaft and the exhaust camshaft and comprises a positioning plate, and the positioning plate is provided with a first positioning portion and a second positioning portion which can simultaneously clamp the intake camshaft and the exhaust camshaft. Angle phases of the intake camshaft and the exhaust cam shaft relative to a crankshaft can be within a quite accurate scope, and a valve timing system of the engine camshaft can be more easily mounted.
Description
Technical field
The utility model belongs to technical field of engines, relates to a kind of orientation tool, the orientation tool on particularly a kind of engine cam.
Background technology
During engine operation; The crankshaft sprocket that the reciprocating motion of piston and piston rod drives bent axle and crankshaft end rotates; Crankshaft sprocket drives the inlet and outlet camshaft through timing chain and camshaft sprocket and rotates, and the inlet and outlet camshaft is provided with a plurality of cam bits and is respectively applied for the inlet valve of control engine and the keying of exhaust valve.Therefore; Engine just needs cam bit and inlet and outlet door and the residing angular phasing relation of bent axle on the adjustment inlet and outlet camshaft when assembling; Connect crankshaft sprocket and inlet and outlet camshaft sprocket with timing chain then; To guarantee bent axle and the rotation synchronously all the time of inlet and outlet camshaft, make that the keying state of inlet valve and exhaust valve is corresponding with the stroke of pistons work, the process of this correction is so-called to be a correct time or the camshaft timing of taking offence.
In order to ensure valve timing system is reasonably installed, at present, the Chinese patent document discloses a kind of camshaft timing positioning clamping device [patent No.: ZL201020263397.0; Granted publication number: CN201744933U]; This camshaft timing positioning clamping device; Comprise one correct time location-plate; Described correct time, the location-plate both sides were respectively through realizing the location in correct time to camshaft with the suitable structure of admission cam shaft and exhaust cam shaft neck, and should correct time location-plate become the T font.This valve timing system adopts following mode to install: at first, with correct time positioning and fixing between admission cam shaft neck and exhaust cam shaft neck; Then; Respectively admission cam shaft and exhaust cam shaft are installed; Because the cross section at camshaft journal place is orthohexagonal; Can make correct time in the admission cam shaft axle journal hexagon while lean against the location-plate in correct time on, one side make on the another side that leans against the location-plate in correct time corresponding in the exhaust cam shaft neck hexagon; At last, realization is to the tool locating of camshaft.
Employing should correct time positioning clamping device, though can the valve timing system of engine inlet and outlet camshaft be installed accurately, should correct time positioning clamping device also have complex structure, inconvenient operation, the not high shortcoming of precision.
Summary of the invention
The purpose of the utility model is to have the problems referred to above to existing technology, has proposed the orientation tool on a kind of engine cam, and this orientation tool has the advantages that admission cam shaft and exhaust cam shaft can't be rotated.
The purpose of the utility model can realize through following technical proposal: the orientation tool on a kind of engine cam; Described camshaft comprises admission cam shaft and exhaust cam shaft; This orientation tool can be arranged between admission cam shaft and the exhaust cam shaft; Comprise a location-plate, described location-plate has the location division one and location division two that can be clamped on simultaneously on admission cam shaft and the exhaust cam shaft.
When the valve timing system of engine cam is installed, the orientation tool on this engine cam, can use through following mode: at first, respectively with admission cam shaft with exhaust cam shaft is installed to camshaft frame or camshaft bearing covers; Then, adjust the installation site of the valve timing system of admission cam shaft and exhaust cam shaft; Then; Because the cross section at camshaft journal place is the regular hexagon design; Can be with location division on this orientation tool one and admission cam shaft neck chucking; With the exhaust cam shaft neck chucking of location division two, admission cam shaft and exhaust cam shaft are fixed with admission cam shaft neck corresponding section; At last, timing chain is installed on crankshaft sprocket and the camshaft sprocket, accomplish camshaft and bent axle correct time relative position installation, thereby realize of the correct time installation of this orientation tool to engine cam.Adopt this assembly method that admission cam shaft and exhaust cam shaft are in the very accurate scope with respect to the angular phasing of bent axle, and the installation of valve timing system is more prone to.This orientation tool also has simple in structure, the easy to operate and low advantage of processing and manufacturing cost.
In the orientation tool on above-mentioned engine cam; Described location division one is for being opened on the location-plate and opening one that can be complementary with admission cam shaft; Described location division two is for being opened on the location-plate and opening two that can be complementary with exhaust cam shaft, and described opening one is positioned on the same side of location-plate with opening two.Opening one can tighten with the axle journal on the admission cam shaft, and opening two can tighten with the axle journal on the exhaust cam shaft, thereby when the valve timing system that carries out engine cam was installed, the inlet and outlet camshaft can not rotate, and prevents influence installation effect.
In the orientation tool on above-mentioned engine cam, described opening one is symmetrical set with the center of opening two with respect to location-plate.
In the orientation tool on above-mentioned engine cam, also offer opening three on the described location-plate, described opening three is between above-mentioned opening one and the opening two.Opening three is convenient to hand-held, increases operability; And help this orientation tool saving material, reduce production costs.
In the orientation tool on above-mentioned engine cam, described location-plate adopts metal material to process.The location-plate that adopts metal material to process helps avoiding influencing the practical function of orientation tool because of camshaft rotates the generation that the torque that produces makes location-plate generation deformation.
In the orientation tool on above-mentioned engine cam, the degree of depth of described opening one and opening two is 3 to 5cm.This degree of depth helps opening one and can tighten with the axle journal on the admission cam shaft, and opening two can tighten with the axle journal on the exhaust cam shaft.
Compared with prior art, the orientation tool on this engine cam has the following advantages:
1, because the axle journal of admission cam shaft and exhaust cam shaft is the hexagonal design; Location division one on this orientation tool can tighten with the admission cam shaft neck; Location division two can tighten with the exhaust cam shaft neck of admission cam shaft neck corresponding section; Thereby realize that admission cam shaft and exhaust cam shaft can't rotate, and guarantee the smooth installation of valve timing system.Adopt this assembly method that admission cam shaft and exhaust cam shaft are in the very accurate scope with respect to the angular phasing of bent axle, and the installation of valve timing system is more prone to.
2, this orientation tool is simple in structure in addition, the easy to use and low advantage of production cost.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is that the utility model is installed in the structural representation on the inlet and outlet camshaft;
Fig. 3 is that the utility model is installed in the front view on the inlet and outlet camshaft;
Fig. 4 is the sectional structure sketch map of Fig. 3 A-A direction.
Among the figure, 1, location-plate; 11, opening one; 12, opening two; 13, opening three; 2, admission cam shaft; 3, exhaust cam shaft.
The specific embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technical scheme of the utility model is done further to describe, but the utility model is not limited to these embodiment.
As shown in Figure 1; Orientation tool on a kind of engine cam; Camshaft comprises admission cam shaft 2 and exhaust cam shaft 3; This orientation tool can be arranged between admission cam shaft 2 and the exhaust cam shaft 3, comprises a location-plate 1, and location-plate 1 has the location division one and location division two that can be clamped on simultaneously on admission cam shaft 2 and the exhaust cam shaft 3.
As shown in Figure 4; Location division one is for being opened on the location-plate 1 and opening 1 that can be complementary with admission cam shaft 2; Location division two is for being opened on the location-plate 1 and opening 2 12 that can be complementary with exhaust cam shaft 3; Opening 1 is positioned on the same side of location-plate 1 with opening 2 12, and opening 1 is symmetrical set with the center of opening 2 12 with respect to location-plate 1.In the present embodiment, the sidewall of opening 1 and opening 2 12 is two planes that are parallel to each other, and two sides connect through a bottom surface, and these two planes are vertical with the bottom surface of location-plate 1.Because the cross section at camshaft journal place is the regular hexagon design; Opening 1 can tighten with the axle journal on the admission cam shaft 2; Opening 2 12 can tighten with the axle journal on the exhaust cam shaft 3; Thereby when the valve timing system that carries out engine cam was installed, admission cam shaft 2 can not rotate with exhaust cam shaft 3, so that effect to be installed the correct time that prevents to influence camshaft.Also offer opening 3 13 on the location-plate 1, opening 3 13 is opened between opening 1 and the opening 2 12, and opening 3 13 is convenient to hand-held, increases operability; And help this orientation tool saving material, reduce production costs.
Orientation tool on this engine cam, location-plate 1 adopts metal material to process, and in the present embodiment, this metal is the 45# steel.The location-plate 1 that adopts this material to process helps avoiding because of camshaft rotates the torque that produces the situation that deformation takes place location-plate 1 being taken place, and influences the positioning action of orientation tool.The degree of depth of opening 1 and opening 2 12 is 3 to 5cm, and in the present embodiment, this degree of depth is chosen as 4cm.This degree of depth helps opening 1 and can tighten with the axle journal on the admission cam shaft 2, and opening 2 12 can tighten with the axle journal on the exhaust cam shaft 3.
As shown in Figures 2 and 3; When the valve timing system of engine cam is installed; Orientation tool on this engine cam can use through following mode: at first, respectively admission cam shaft 2 and exhaust cam shaft 3 are installed to camshaft frame or camshaft bearing covers; Then, adjust the installation site of the valve timing system of admission cam shaft 2 and exhaust cam shaft 3; Then; Because the cross section at camshaft journal place is the regular hexagon design; Can be with location division on this orientation tool one and admission cam shaft 2 axle journals chucking; With the exhaust cam shaft 3 axle journals chucking of location division two, make admission cam shaft 2 fixing with exhaust cam shaft 3 with admission cam shaft 2 axle journal corresponding sections; At last, timing chain is installed on crankshaft sprocket and the camshaft sprocket, accomplish camshaft and bent axle correct time relative position installation, thereby realize of the correct time installation of this orientation tool to engine cam.Adopt this assembly method that admission cam shaft 2 and the angular phasing of exhaust cam shaft 3 with respect to bent axle are in the very accurate scope, and the installation of valve timing system is more prone to.This orientation tool also has simple in structure, the easy to operate and low advantage of processing and manufacturing cost.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Although this paper has used 1, location-plate morely; 11, opening one; 12, opening two; 13, opening three; 2, admission cam shaft; 3, term such as exhaust cam shaft, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain the essence of the utility model more easily; It all is contrary with the utility model spirit being construed to any additional restriction to them.
Claims (6)
1. the orientation tool on the engine cam; Described camshaft comprises admission cam shaft (2) and exhaust cam shaft (3); It is characterized in that; This orientation tool can be arranged between admission cam shaft (2) and the exhaust cam shaft (3), comprises a location-plate (1), and described location-plate (1) has the location division one and location division two that can be clamped on simultaneously on admission cam shaft (2) and the exhaust cam shaft (3).
2. the orientation tool on the engine cam according to claim 1; It is characterized in that; Described location division one is for being opened on the location-plate (1) and opening one (11) that can be complementary with admission cam shaft (2); Described location division two is for being opened on the location-plate (1) and opening two (12) that can be complementary with exhaust cam shaft (3), and described opening one (11) and opening two (12) are positioned on the same side of location-plate (1).
3. the orientation tool on the engine cam according to claim 2 is characterized in that, described opening one (11) and opening two (12) are symmetrical set with respect to the center of location-plate (1).
4. according to the orientation tool on claim 2 or the 3 described engine cams, it is characterized in that, also offer opening three (13) on the described location-plate (1), described opening three (13) is between above-mentioned opening one (11) and the opening two (12).
5. according to the orientation tool on claim 1 or the 2 or 3 described engine cams, it is characterized in that described location-plate (1) adopts metal material to process.
6. according to the orientation tool on claim 2 or the 3 described engine cams, it is characterized in that the degree of depth of described opening one (11) and opening two (12) is 3 to 5cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200686012U CN202479997U (en) | 2012-02-28 | 2012-02-28 | Positioning tool for engine camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200686012U CN202479997U (en) | 2012-02-28 | 2012-02-28 | Positioning tool for engine camshaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202479997U true CN202479997U (en) | 2012-10-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200686012U Expired - Lifetime CN202479997U (en) | 2012-02-28 | 2012-02-28 | Positioning tool for engine camshaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202479997U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029081A (en) * | 2013-01-05 | 2013-04-10 | 合肥美的荣事达电冰箱有限公司 | Positioning tool for assembling refrigerator liner |
| CN104249320A (en) * | 2013-06-28 | 2014-12-31 | 北京汽车动力总成有限公司 | Positioning and mounting system and positioning and mounting method used for engine timing system |
| CN104493787A (en) * | 2014-10-31 | 2015-04-08 | 重庆长安汽车股份有限公司 | Engine timing chain system assembly tool and an assembly method |
| CN107336169A (en) * | 2017-06-30 | 2017-11-10 | 重庆小康工业集团股份有限公司 | Camshaft stop frock |
| CN107825346A (en) * | 2017-10-25 | 2018-03-23 | 天津交通职业学院 | A kind of disassembly and assembly structure for camshaft of car engine |
| CN109366399A (en) * | 2018-10-30 | 2019-02-22 | 中国北方发动机研究所(天津) | A kind of tool structure with positioning intake and exhaust timing function |
-
2012
- 2012-02-28 CN CN2012200686012U patent/CN202479997U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103029081A (en) * | 2013-01-05 | 2013-04-10 | 合肥美的荣事达电冰箱有限公司 | Positioning tool for assembling refrigerator liner |
| CN103029081B (en) * | 2013-01-05 | 2016-04-13 | 合肥美的电冰箱有限公司 | Positioning tool for assembling refrigerator liner |
| CN104249320A (en) * | 2013-06-28 | 2014-12-31 | 北京汽车动力总成有限公司 | Positioning and mounting system and positioning and mounting method used for engine timing system |
| CN104493787A (en) * | 2014-10-31 | 2015-04-08 | 重庆长安汽车股份有限公司 | Engine timing chain system assembly tool and an assembly method |
| CN104493787B (en) * | 2014-10-31 | 2016-08-17 | 重庆长安汽车股份有限公司 | A kind of timing chain system of engine assembly tooling and assembly method |
| CN107336169A (en) * | 2017-06-30 | 2017-11-10 | 重庆小康工业集团股份有限公司 | Camshaft stop frock |
| CN107825346A (en) * | 2017-10-25 | 2018-03-23 | 天津交通职业学院 | A kind of disassembly and assembly structure for camshaft of car engine |
| CN109366399A (en) * | 2018-10-30 | 2019-02-22 | 中国北方发动机研究所(天津) | A kind of tool structure with positioning intake and exhaust timing function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Ji'nan Geely Auto Parts Co., Ltd. Assignor: Zhejiang Geely Automobile Research Institute Co., Ltd., Zhejiang Geely Holding Group Company Limited Contract record no.: 2012370000284 Denomination of utility model: Positioning tool for engine camshaft Granted publication date: 20121010 License type: Exclusive License Record date: 20121225 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121010 |
|
| CX01 | Expiry of patent term |