CN110925044B - Method for adjusting braking and valve clearance in engine cylinder and angle measuring tool - Google Patents
Method for adjusting braking and valve clearance in engine cylinder and angle measuring tool Download PDFInfo
- Publication number
- CN110925044B CN110925044B CN201911192148.9A CN201911192148A CN110925044B CN 110925044 B CN110925044 B CN 110925044B CN 201911192148 A CN201911192148 A CN 201911192148A CN 110925044 B CN110925044 B CN 110925044B
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- Prior art keywords
- engine
- valve
- cylinder
- protractor
- positioning sleeve
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/20—Adjusting or compensating clearance
- F01L1/22—Adjusting or compensating clearance automatically, e.g. mechanically
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01L—CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES
- F01L1/00—Valve-gear or valve arrangements, e.g. lift-valve gear
- F01L1/46—Component parts, details, or accessories, not provided for in preceding subgroups
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/042—Testing internal-combustion engines by monitoring a single specific parameter not covered by groups G01M15/06 - G01M15/12
Abstract
The invention discloses a method for braking and adjusting valve clearance in an engine cylinder, which comprises the following steps: firstly, setting an angle measuring tool and fixing the tool on an engine signal panel on an engine crankshaft; then, the engine signal panel is rotated for a certain angle to enable a valve of a certain cylinder of the engine to be closed so as to adjust the gap of the valve, and the rotating angle of the engine signal panel is read according to the position change of a zero scale mark on the angle measuring tool relative to a signal sensor on the engine; finally, the engine signal panel and the engine signal panel are rotated, and the valve clearance of each cylinder is adjusted. The invention also discloses an angle measuring tool for realizing the method for braking in the engine cylinder and adjusting the valve clearance. The invention discloses an in-cylinder braking and valve clearance adjusting method of an engine and an angle measuring tool, which belong to the technical field of engine assembly.
Description
Technical Field
The invention relates to the technical field of engine assembly, in particular to an in-cylinder braking and valve clearance adjusting method and an angle measuring tool for an engine.
Background
In the process of adjusting in-cylinder braking and valve clearance, an engine signal panel needs to be rotated for a certain angle before each time of in-cylinder braking or valve clearance adjustment, and the rotating angle is inaccurate, so that the performance of an engine is influenced, and even the engine is damaged.
The prior art scheme is that the angle measuring device is used for measuring the rotation angle relative to the signal sensor when the gap is adjusted every time, the line is drawn, marks are made, and then the signal panel is rotated according to the marks.
However, the method has the defects that the rotation angle is required to be improved and marked every time of adjustment, and the rotation angle is required to be changed for many times when the in-cylinder brake and the valve clearance of one engine are adjusted, so that the marks are more, the producer is difficult to recognize, the error is easily confused, and the operation quality is influenced.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art, and one of the purposes of the invention is to provide an in-cylinder braking and valve clearance adjusting method of an engine.
The second purpose of the invention is to provide an angle measuring tool.
In order to achieve the above object, the present invention provides a method for braking and valve clearance adjustment in an engine cylinder, the method comprising: firstly, setting an angle measuring tool and fixing the tool on an engine signal panel on an engine crankshaft; then, the engine signal panel is rotated for a certain angle to enable a valve of a certain cylinder of the engine to be closed so as to adjust the gap of the valve, the rotating angle of the engine signal panel is read according to the position change of a zero scale mark on the angle measuring tool relative to a signal sensor on the engine, and the accuracy of the rotating angles of the engine crankshaft and the engine signal panel is ensured; finally, the engine signal panel and the engine signal panel are rotated, and the valve clearance of each cylinder is adjusted.
Further, the step of adjusting the valve clearance of each cylinder includes:
1) Rotating an engine signal panel to enable the air inlet valves of three cylinders to be closed so as to adjust the air valve gaps of the three air inlet valves, and carrying out zero setting on zero scale marks on the angle measuring tool and the position of the signal sensor;
2) Rotating the engine signal panel by a certain angle until the exhaust valve of one cylinder is closed to adjust the valve clearance of the exhaust valve, and repeating the step until the valve clearance adjustment of the exhaust valves of three cylinders is completed;
3) Continuing to close the intake valves of the other three cylinders by a certain angle of the engine signal panel to adjust the valve clearances of the three intake valves;
4) The engine signal disc continues to rotate a certain angle until the exhaust valve of one cylinder closes to adjust the valve clearance of the exhaust valve, and the step is repeated until the valve clearance adjustment of the exhaust valves of the last three cylinders is completed.
As a further improvement, the angle gauge tool comprises an angle gauge and a plurality of adsorption components which are arranged on the angle gauge and can fix the angle gauge on an engine signal panel, wherein each adsorption component comprises a positioning sleeve propped against one side surface of the angle gauge and a tensioning screw which is arranged on the angle gauge and is connected with the positioning sleeve, and a magnetic structure is arranged in each positioning sleeve.
Furthermore, the positioning sleeve is of a ladder-shaped structure with a small end and a large end, the small end of the positioning sleeve is inserted into the protractor, and an internal thread connected with the tensioning screw is arranged in the small end of the positioning sleeve; a positioning step which is matched with one side surface of the protractor is arranged between the large end and the small end of the positioning sleeve, and a positioning hole for positioning the magnetic structure is arranged in the large end of the positioning sleeve.
As a further improvement, a guide hole is formed in the inner wall of the positioning hole, a spring and an extrusion block which is arranged at one end of the spring and can extend into the positioning hole to be propped against the magnetic structure are arranged in the guide hole, and a connecting plate connected with the outer wall of the positioning sleeve is arranged at the other end of the spring.
Further, the magnetic structure is a magnet.
In order to achieve the second purpose, the invention also provides a protractor tool for realizing the braking and valve clearance adjustment method in the engine cylinder, which comprises a protractor and a plurality of adsorption components which are arranged on the protractor and can fix the protractor on an engine signal panel, wherein each adsorption component comprises a positioning sleeve propped against one side surface of the protractor and a tightening screw which is arranged on the protractor and is connected with the positioning sleeve, and a magnetic structure is arranged in each positioning sleeve.
Furthermore, the positioning sleeve is of a stepped structure with a small end and a large end, the small end of the positioning sleeve is inserted into the protractor to be arranged, and an internal thread connected with the tensioning screw is arranged in the small end of the positioning sleeve; a positioning step which is matched with one side surface of the protractor is arranged between the large end and the small end of the positioning sleeve, and a positioning hole for positioning the magnetic structure is arranged in the large end of the positioning sleeve.
As a further improvement, a guide hole is formed in the inner wall of the positioning hole, a spring and an extrusion block which is arranged at one end of the spring and can extend into the positioning hole to be abutted against the magnetic structure are arranged in the guide hole, and a connecting plate connected with the outer wall of the positioning sleeve is arranged at the other end of the spring.
Further, the magnetic structure is a magnet.
Advantageous effects
Compared with the prior art, the method for adjusting the braking and valve clearance in the engine cylinder has the following beneficial effects: according to the method for braking in the engine cylinder and adjusting the valve clearance and the angle measuring tool, through the position change of the zero scale on the angle measuring device relative to the signal sensor on the engine, the rotating angle of the engine signal disc is read, the accuracy of the rotating angle of the engine signal disc is guaranteed, the rotating angle of the engine signal disc is guaranteed to correspond to the rotating angle required by the cam shaft each time, the rotating angle is not required to be adjusted each time, the marking is carried out, the assembly of the identification of the rotating angle of the cam shaft on the crank shaft and the engine and the position of the cam on the cam shaft is convenient, the identification is not easy to be out in error, the rotation of the cam shaft is guaranteed to be in place, the valve clearance adjustment is guaranteed, and the operation quality is guaranteed.
Drawings
FIG. 1 is a front elevational view of the engine in-cylinder brake and valve clearance angle tooling of the present invention;
FIG. 2 is a left side view of the construction of the in-cylinder brake and valve clearance angle tool of the present invention;
FIG. 3 is an enlarged cross-sectional view of the structure at a in FIG. 2;
fig. 4 is an enlarged cross-sectional view of the structure of the spacer sleeve of the present invention.
In the figure: 1. an engine signal panel; 2. a signal sensor; 3. an angle gauge; 4. an adsorption assembly; 41. a positioning sleeve; 42. tightening the screw; 43. a magnetic structure; 44. positioning holes; 5. a guide hole; 6. a spring; 7. extruding a block; 8. and (5) connecting a plate.
Detailed Description
The following detailed description of embodiments of the invention is, therefore, to be taken in conjunction with the accompanying drawings, and it is to be understood that the scope of the invention is not limited to the specific embodiments.
The specific embodiments of the present invention are as follows: as shown in fig. 1-4, a method of in-cylinder braking and valve lash adjustment for an engine, the method comprising: firstly, setting an angle measuring tool to be fixed on an engine signal panel 1 on an engine crankshaft; then, the engine signal panel 1 is rotated for a certain angle to enable the valve of a certain cylinder of the engine to be closed so as to adjust the gap of the valve, the rotating angle of the engine signal panel 1 is read according to the position change of a zero scale mark on the angle measuring tool relative to the signal sensor 2 on the engine, and the accuracy of the rotating angle of the engine crankshaft and the engine signal panel 1 is ensured; finally, the engine signal disc 1 and the engine signal disc 1 are rotated, and the valve clearance of each cylinder is adjusted.
In this embodiment, the step of adjusting the valve clearance of each cylinder includes:
1) The engine signal panel 1 is rotated to enable the air inlet valves of the three cylinders to be closed so as to adjust the air valve gaps of the three air inlet valves, namely, a crankshaft is rotated to drive a cam shaft, the relative position relation between the cam peak on the cam shaft and an air valve rocker is adjusted, and zero graduation marks on the angle measuring tool and the position of the signal sensor 2 are zeroed;
2) Rotating the engine signal panel 1 by a certain angle until the exhaust valve of one cylinder is closed to adjust the valve clearance of the exhaust valve, and repeating the step until the valve clearance adjustment of the exhaust valves of three cylinders is completed;
3) Continuing to enable the intake valves of the other three cylinders to close by a certain angle of the engine signal panel 1 so as to adjust the valve clearances of the three intake valves;
4) The engine signal disc 1 continues to rotate a certain angle until the exhaust valve of a certain cylinder closes to adjust the valve clearance of the exhaust valve, and the step is repeated until the valve clearance adjustment of the exhaust valves of the last three cylinders is completed.
In this embodiment, the protractor frock includes protractor 3 and a plurality of absorption subassembly 4 that can fix the protractor 3 on engine signal panel 1 that are equipped with on protractor 3, and absorption subassembly 4 includes the spacer 41 that offsets with a side of protractor 3 and the tensioning screw 42 that is equipped with on protractor 3 and is connected with spacer 41, is equipped with magnetic structure 43 in the spacer 41.
In the embodiment, the positioning sleeve 41 is of a ladder-shaped structure with a small end and a large end, the small end of the positioning sleeve 41 is inserted into the protractor 3 for arrangement, and an internal thread connected with the tensioning screw 42 is arranged in the small end of the positioning sleeve 41; a positioning step which is matched with one side surface of the protractor 3 is arranged between the large end and the small end of the positioning sleeve 41, and a positioning hole 44 for positioning the magnetic structure 43 is arranged in the large end of the positioning sleeve 41.
In this embodiment, a guiding hole 5 is provided on the inner wall of the positioning hole 44, a spring 6 and an extrusion block 7 which is provided at one end of the spring 6 and can extend into the positioning hole 44 to abut against the magnetic structure 43 are provided in the guiding hole 5, and a connecting plate 8 connected with the outer wall of the positioning sleeve 41 is provided at the other end of the spring 6.
In this embodiment, the magnetic structure 43 is a magnet.
The angle measuring tool used in the method for manufacturing the in-cylinder brake and the valve clearance adjustment consists of two parts, namely an angle gauge 3 and an adsorption component 4. The protractor 3 is ring-shaped, and the outer diameter is slightly smaller than the engine signal panel; the suction assembly 4 is fixed on the protractor, and the suction assembly 4 consists of a magnetic structure 43, a positioning sleeve 41 and a tensioning screw 42. When the angle measuring tool is used, the angle measuring tool is coaxially adsorbed on the engine signal panel, the rotating angle of the engine signal panel 1 is read through the position change of the zero scale on the angle measuring device 3 relative to the signal sensor 2 on the engine, the accuracy of the rotating angle of the engine signal panel 1 is guaranteed, the rotating angle of the engine signal panel 1 is guaranteed to correspond to the rotating angle required by the cam shaft each time, the rotating angle is not required to be measured each time, the marking is carried out, the crankshaft and the rotating angle of the cam shaft on the engine and the position of the cam on the cam shaft are conveniently identified, the identification is convenient, errors are not easy to occur, the rotation of the cam shaft is guaranteed to be in place, the valve clearance adjustment is guaranteed, and the operation quality is guaranteed.
The utility model provides an angle measurement frock of realization engine in-cylinder braking and valve clearance adjustment method, includes protractor 3 and a plurality of absorption subassembly 4 that can fix protractor 3 on engine signal panel 1 that are equipped with on protractor 3, absorption subassembly 4 include with the spacer 41 of one side looks butt of protractor 3 and be equipped with on protractor 3 with the tensioning screw 42 that spacer 41 is connected, be equipped with magnetic structure 43 in the spacer 41.
In the embodiment, the positioning sleeve 41 is of a ladder-shaped structure with a small end and a large end, the small end of the positioning sleeve 41 is inserted into the protractor 3 for arrangement, and an internal thread connected with the tensioning screw 42 is arranged in the small end of the positioning sleeve 41; a positioning step which is matched with one side surface of the protractor 3 is arranged between the large end and the small end of the positioning sleeve 41, and a positioning hole 44 for positioning the magnetic structure 43 is arranged in the large end of the positioning sleeve 41.
In this embodiment, a guiding hole 5 is provided on the inner wall of the positioning hole 44, a spring 6 and an extrusion block 7 which is arranged at one end of the spring 6 and can extend into the positioning hole 44 to prop against the magnetic structure 43 are provided in the guiding hole 5, a connecting plate 8 connected with the outer wall of the positioning sleeve 41 is provided at the other end of the spring 6, the connecting plate 8 is arc-shaped and is tightly attached to the outer wall of the positioning sleeve 41, and the connecting plate is quickly fixed on the outer wall of the positioning sleeve 41 by a screw.
In this embodiment, the magnetic structure 43 is a magnet.
The angle measuring tool for manufacturing in-cylinder braking and valve clearance adjustment comprises an angle gauge 3 and an adsorption component 4. The protractor 3 is ring-shaped, and the outer diameter is slightly smaller than the engine signal panel; the suction assembly 4 is fixed on the protractor, and the suction assembly 4 consists of a magnetic structure 43, a positioning sleeve 41 and a tensioning screw 42. When the angle measuring tool is used, the angle measuring tool is coaxially adsorbed on the engine signal panel, the rotating angle of the engine signal panel 1 is read through the position change of the zero scale on the angle measuring device 3 relative to the signal sensor 2 on the engine, the accuracy of the rotating angle of the engine signal panel 1 is guaranteed, the rotating angle of the engine signal panel 1 is guaranteed to correspond to the rotating angle required by the cam shaft each time, the rotating angle is not required to be measured each time, the marking is carried out, the crankshaft and the rotating angle of the cam shaft on the engine and the position of the cam on the cam shaft are conveniently identified, the identification is convenient, errors are not easy to occur, the rotation of the cam shaft is guaranteed to be in place, the valve clearance adjustment is guaranteed, and the operation quality is guaranteed.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these do not affect the effect of the implementation of the present invention and the utility of the patent.
Claims (3)
1. An in-cylinder braking and valve lash adjustment method for an engine, the method comprising: firstly, setting a protractor fixture to be fixed on an engine signal panel (1) on an engine crankshaft, wherein the protractor fixture comprises a protractor (3) and a plurality of adsorption assemblies (4) which are arranged on the protractor (3) and can fix the protractor (3) on the engine signal panel (1), the adsorption assemblies (4) comprise a positioning sleeve (41) which is propped against one side surface of the protractor (3) and a tensioning screw (42) which is arranged on the protractor (3) and is connected with the positioning sleeve (41), a magnetic structure (43) is arranged in the positioning sleeve (41), the positioning sleeve (41) is of a stepped structure with one small end and one large end, the small end of the positioning sleeve (41) is inserted into the protractor (3), and internal threads which are connected with the tensioning screw (42) are arranged inside the small end of the positioning sleeve (41); a positioning step which is matched with one side surface of the protractor (3) is arranged between the large end and the small end of the positioning sleeve (41), and a positioning hole (44) for positioning the magnetic structure (43) is arranged in the large end of the positioning sleeve (41); then, the engine signal panel (1) is rotated for a certain angle to enable a valve of a certain cylinder of the engine to be closed so as to adjust the gap of the valve, the rotating angle of the engine signal panel (1) is read according to the position change of a zero scale mark on the angle measuring tool relative to a signal sensor (2) on the engine, and the accuracy of the rotating angle of an engine crankshaft and the engine signal panel (1) is ensured; finally, the engine signal disc (1) is rotated to adjust the valve clearance of each cylinder.
2. The method of in-cylinder braking and valve lash adjustment of an engine of claim 1, wherein the step of adjusting the valve lash of each cylinder comprises:
1) Rotating an engine signal panel (1) to enable air inlet valves of three cylinders to be closed so as to adjust air valve gaps of the three air inlet valves, and zeroing zero scale marks on the angle measuring tool and the position of a signal sensor (2);
2) Rotating the engine signal panel (1) by a certain angle until the exhaust valve of one cylinder is closed to adjust the valve clearance of the exhaust valve, and repeating the steps until the valve clearance adjustment of the exhaust valves of three cylinders is completed;
3) Continuing to close the intake valves of the other three cylinders by a certain angle of the engine signal panel (1) so as to adjust the valve clearances of the three intake valves;
4) The engine signal disc (1) continues to rotate a certain angle until the exhaust valve of one cylinder closes to adjust the valve clearance of the exhaust valve, and the step is repeated until the valve clearance adjustment of the exhaust valves of the last three cylinders is completed.
3. The method for braking and adjusting the valve clearance in the engine cylinder according to claim 2, characterized in that the magnetic structure (43) is a magnet, a guide hole (5) is arranged on the inner wall of the positioning hole (44), a spring (6) and an extrusion block (7) which is arranged at one end of the spring (6) and can extend into the positioning hole (44) to be abutted against the magnetic structure (43) are arranged in the guide hole (5), and a connecting plate (8) connected with the outer wall of the positioning sleeve (41) is arranged at the other end of the spring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192148.9A CN110925044B (en) | 2019-11-28 | 2019-11-28 | Method for adjusting braking and valve clearance in engine cylinder and angle measuring tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911192148.9A CN110925044B (en) | 2019-11-28 | 2019-11-28 | Method for adjusting braking and valve clearance in engine cylinder and angle measuring tool |
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| Publication Number | Publication Date |
|---|---|
| CN110925044A CN110925044A (en) | 2020-03-27 |
| CN110925044B true CN110925044B (en) | 2023-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911192148.9A Active CN110925044B (en) | 2019-11-28 | 2019-11-28 | Method for adjusting braking and valve clearance in engine cylinder and angle measuring tool |
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| CN (1) | CN110925044B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113356955A (en) * | 2021-06-18 | 2021-09-07 | 广西玉柴机器股份有限公司 | Method for adjusting brake clearance of special brake rocker arm |
| CN113894719B (en) * | 2021-09-29 | 2023-02-07 | 广西玉柴机器股份有限公司 | Clamping device for adjusting clearance of braking exhaust valve in engine cylinder |
| CN114473917A (en) * | 2022-03-09 | 2022-05-13 | 广西玉柴机器股份有限公司 | Crankshaft sensor support positioning tool |
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| CN207660705U (en) * | 2017-12-13 | 2018-07-27 | 潍柴动力股份有限公司 | A kind of angle controller and valve adjustments system for flywheel |
| CN109813945A (en) * | 2019-01-21 | 2019-05-28 | 国网山东省电力公司平度市供电公司 | Reaying protection test detects attachment device with PT secondary voltage |
| CN210799062U (en) * | 2019-11-28 | 2020-06-19 | 广西玉柴机器股份有限公司 | Angle measuring tool for braking and valve clearance adjustment in engine cylinder |
-
2019
- 2019-11-28 CN CN201911192148.9A patent/CN110925044B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87203214U (en) * | 1987-04-29 | 1988-07-20 | 朱文成 | Valve gap-regulating dial for four stroke engine |
| CN2141561Y (en) * | 1992-10-29 | 1993-09-01 | 潘和柱 | Multi-function ingine tester |
| CN2291506Y (en) * | 1996-11-08 | 1998-09-16 | 中国人民解放军工程兵指挥学院 | Quick monitoring adjuster for valve clearance of internal cambustion engine |
| CN203354584U (en) * | 2013-06-28 | 2013-12-25 | 华中科技大学同济医学院附属同济医院 | Operation wire retractor with magnetic base |
| CN207660705U (en) * | 2017-12-13 | 2018-07-27 | 潍柴动力股份有限公司 | A kind of angle controller and valve adjustments system for flywheel |
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