CN106378746A - Manual assembly technology for cylinder cover bolt - Google Patents
Manual assembly technology for cylinder cover bolt Download PDFInfo
- Publication number
- CN106378746A CN106378746A CN201610989075.6A CN201610989075A CN106378746A CN 106378746 A CN106378746 A CN 106378746A CN 201610989075 A CN201610989075 A CN 201610989075A CN 106378746 A CN106378746 A CN 106378746A
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- CN
- China
- Prior art keywords
- bolt
- manual assembly
- torque
- technique
- cylinder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a manual assembly technology for a cylinder cover bolt. The manual assembly technology is characterized in that a manual torque rotation angle method tightening technology is adopted; and parameters of the tightening technology are that the torque is (90 +/- 10) N.m, and the rotation angle is (75 +/- 15) degrees. According to the technology, through setting the parameters, not only the axial force required by sealing of an engine can be guaranteed but also the bolt can be guaranteed not lengthened.
Description
Technical field
The present invention relates to bolt assembly technology field, more particularly, to a kind of cylinder bolt assembly technology.
Background technology
Cylinder head bolt is one of important bolt in electromotor, is also the Typical Representative of high-strength bolt.In exploitation just
Phase how to determine the specification of bolt and the tight technique of skewer normal to subsequent project exploitation and electromotor smooth operation most important.
The tightening method of cylinder bolt not only has influence on the sealing of cylinder liner simultaneously, also directly influences the reliability of electromotor work
And durability.Because the pressure that rational tightening technique can make each bolt be distributed keeps uniformity and reasonability.Its advantage
Have two：1st, avoid because of pretightning force deficiency, cause the generation of the phenomenons such as leak, gas leakage, oil leak, affect the power of electromotor, or even
Wash out cylinder liner；2nd, avoid leading to because pretightning force is excessive cylinder cap, cylinder liner deformation excessive, be unfavorable for sealing.Therefore, rational system
The pretightning force determining cylinder bolt tightening technique to ensure bolt is particularly important for cylinder bolt.
CA6102B6 multiple spot electric injection gasoline engine (new model:CA6GH1 it is) that FAW Jingye Engine Co., Ltd. develops
Top grade environment protecting type engine.It not only has excellent power performance, fuel economy, and discharge index and disclosure satisfy that
State II discharge standard.The optional preposition or rearmounted arrangement form of this type, and power steering pump, oil cooler can be chosen to install, with
Meet the requirement of different automobile types.Model CA6GH-E3 of state three version, this type separately has natural gas version CA6102N2.
Remodeling Engine Series bolts assemblies technique be：Before assembling, the threaded portion of bolt is dipped in upper hypoid gear
Bolt is first symmetrically tightened by two sections behind first centre of order with impact wrench during assembling, is then used constant torque wrench again by oil
By being equally that order is tightened again, product requirement screw-down torque is 150-170N m, and constant torque wrench torque setting is 160N
m.
However, CA6102 Engine Series cylinder bolt is in assembling, moment of torsion does not reach the setting of constant torque wrench sometimes
Value, bolt presence is elongated phenomenon, has a strong impact on product quality.
Content of the invention
It is an object of the invention to proposing cylinder bolt manual assembly technique, to solve CA6102 Engine Series cylinder cap spiral shell
The elongation phenomenon of bolt.
For reaching this purpose, the present invention employs the following technical solutions：
A kind of cylinder bolt manual assembly technique, it adopts artificial torque axis horn cupping tightening technique, its tightening technique parameter
Turn 75 ° ± 15 ° for 90 ± 10N m.
The setting of this technological parameter, not only can guarantee that the axial force needed for sealing of electromotor but also can guarantee that bolt was not drawn
Long.
In order to survey the effect that artificial rotation angle of torque is tightened, tentatively artificial torque axis horn cupping technique is set to 100N m and turns
80 ° about, the elongation after the angle of each rotating spanner of assembler, the final moment of torsion of bolt, assembling and axial force are carried out
Test, concrete rundown process is as follows：First with the wrest fixing spanner that definite value is l00N m, bolt is tightened successively, then use big again
Bolt is pulled once (about 80 °) by torque wrench.Moment of torsion and corner are recorded by Bosch TAM200 rotation angle of torque tester, bolt
Elongation and axial pre tightening force recorded by Raymond 1034 bolt horizontal metroscope.
From result of the test, artificial torque axis horn cupping-l00N m turns 80 ° about and tightens averagely final moment of torsion after bolt
Slightly larger than average yield moment of torsion (166N m), average axial force is slightly larger than minimum surrender axial force<76.2kN)；Calibrated wrench method is tightened
The axial force meansigma methodss of rear bolt are less than artificial torque axis horn cupping, but standard deviation is big.
Artificial control corner actual measurement scope is 69 ° -89 °, and statistical result is 80 ° ± 15 °.In order in the work looking after assembler
Make to be easy to while custom position, corner is set to 75 ° ± 15 °.
Control corner scattered error larger in view of artificial, in order to avoid elongating bolt bolt, starting torque average is reduced to
90N m, simultaneously according to the precision of wrest fixing spanner, the scope of starting torque is set to 90 native 10N m.
In order to limit, corner is excessive, final moment of torsion exceeds bolt minimum breakdown torque, and spanner used by rotational angle is using fixed
It is worth the constant torque wrench for 190N m.
The setting of this technological parameter, not only can guarantee that the axial force needed for sealing of electromotor but also can guarantee that bolt was not drawn
Long.
Specific embodiment
To further illustrate technical scheme below by specific embodiment.
Embodiment 1
A kind of cylinder bolt manual assembly technique, it adopts artificial torque axis horn cupping tightening technique, its tightening technique parameter
Turn 75 ° ± 15 ° for 90 ± 10N m.
Described cylinder bolt book CA6102 Engine Series cylinder bolt, its be 12.9 grades of plain bolts, screw thread be M12 ×
1.75, bolt surface granosealing.
By the assembly test of 10000 groups of cylinder bolts, do not find that bolt exists and elongate phenomenon.The setting of this technological parameter
Fixed, not only can guarantee that the axial force needed for sealing of electromotor but also can guarantee that bolt was not elongated.
Claims (2)
1. a kind of cylinder bolt manual assembly technique, it adopts artificial torque axis horn cupping tightening technique, and its tightening technique parameter is
90 ± 10N m turns 75 ° ± 15 °.
2. cylinder bolt manual assembly technique according to claim 1 is it is characterised in that described cylinder bolt book CA6102
Engine Series cylinder bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989075.6A CN106378746A (en) | 2016-11-10 | 2016-11-10 | Manual assembly technology for cylinder cover bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610989075.6A CN106378746A (en) | 2016-11-10 | 2016-11-10 | Manual assembly technology for cylinder cover bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106378746A true CN106378746A (en) | 2017-02-08 |
Family
ID=57957378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610989075.6A Pending CN106378746A (en) | 2016-11-10 | 2016-11-10 | Manual assembly technology for cylinder cover bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106378746A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985101A (en) * | 2017-05-12 | 2017-07-28 | 广西玉柴机器股份有限公司 | A kind of engine cylinder cover bolt tightening method |
| CN107020598A (en) * | 2017-05-12 | 2017-08-08 | 广西玉柴机器股份有限公司 | A kind of main bearing of engine bolt tightening method |
| CN112959044A (en) * | 2021-02-08 | 2021-06-15 | 广西玉柴机器股份有限公司 | Cylinder head bolt tightening method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100850A (en) * | 2013-01-31 | 2013-05-15 | 东风康明斯发动机有限公司 | Engine connecting rod bolt screwing craft through torque and turn angle |
| CN103921242A (en) * | 2014-04-02 | 2014-07-16 | 广西玉柴机器股份有限公司 | Air cylinder cover bolt screwing process |
| CN204263067U (en) * | 2014-11-07 | 2015-04-15 | 天津雷沃动力有限公司 | The bolt tightening moment controlling angle frock that a kind of engine cylinder covers |
| CN106041498A (en) * | 2016-06-14 | 2016-10-26 | 江苏永昊高强度螺栓有限公司 | Moment plus corner screwing process for bolts of engine connection rod |
-
2016
- 2016-11-10 CN CN201610989075.6A patent/CN106378746A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103100850A (en) * | 2013-01-31 | 2013-05-15 | 东风康明斯发动机有限公司 | Engine connecting rod bolt screwing craft through torque and turn angle |
| CN103921242A (en) * | 2014-04-02 | 2014-07-16 | 广西玉柴机器股份有限公司 | Air cylinder cover bolt screwing process |
| CN204263067U (en) * | 2014-11-07 | 2015-04-15 | 天津雷沃动力有限公司 | The bolt tightening moment controlling angle frock that a kind of engine cylinder covers |
| CN106041498A (en) * | 2016-06-14 | 2016-10-26 | 江苏永昊高强度螺栓有限公司 | Moment plus corner screwing process for bolts of engine connection rod |
Non-Patent Citations (1)
| Title |
|---|
| 张琼敏，熊云奇，卢海波: "EQ6102缸盖螺栓拉长原因分析及装配工艺改进", 《汽车工艺与材料》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106985101A (en) * | 2017-05-12 | 2017-07-28 | 广西玉柴机器股份有限公司 | A kind of engine cylinder cover bolt tightening method |
| CN107020598A (en) * | 2017-05-12 | 2017-08-08 | 广西玉柴机器股份有限公司 | A kind of main bearing of engine bolt tightening method |
| CN107020598B (en) * | 2017-05-12 | 2018-11-02 | 广西玉柴机器股份有限公司 | A kind of main bearing of engine bolt tightening method |
| CN106985101B (en) * | 2017-05-12 | 2018-11-02 | 广西玉柴机器股份有限公司 | A kind of engine cylinder cover bolt tightening method |
| CN112959044A (en) * | 2021-02-08 | 2021-06-15 | 广西玉柴机器股份有限公司 | Cylinder head bolt tightening method |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170208 |