CN209067360U - Laser hardens main beating cap - Google Patents
Laser hardens main beating cap Download PDFInfo
- Publication number
- CN209067360U CN209067360U CN201822076147.5U CN201822076147U CN209067360U CN 209067360 U CN209067360 U CN 209067360U CN 201822076147 U CN201822076147 U CN 201822076147U CN 209067360 U CN209067360 U CN 209067360U
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- China
- Prior art keywords
- quench
- beating cap
- main beating
- hardened case
- hardness
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Abstract
It hardens main beating cap the utility model discloses a kind of laser, comprising: main beating cap ontology, main beating cap ontology lower half portion have half slot；Boss, boss are located at the bottom at main beating cap ontology both ends；Screw hole, screw hole are opened in the both ends of main beating cap ontology, and screw hole is for accommodating fixing bolt；And quench-hardened case, quench-hardened case are located at around screw hole, quench-hardened case is annular in shape, and there are gaps between the interior edge of quench-hardened case and the outer of screw hole；Wherein, the hardness of quench-hardened case is greater than the hardness of fixing bolt, and wherein, and the hardness of quench-hardened case is less than the hardness of main beating cap ontology.The utility model is around the screw hole of bolt of main bearing cap mounting surface with one circle quench-hardened case of laser processing, to make bolt pressure-bearing surface hardness become smaller, is conducive to the uniform of mounting torque, reduces the uneven of Tightening moment, make to fasten failure rate that is relatively reliable, and can be effectively reduced part.
Description
Technical field
The utility model is to harden main beating cap about crankshaft of diesel engine assembly field especially with regard to a kind of laser.
Background technique
Engine main bearing cover is limited by the space of engine, it is difficult to arrange more pieces of bolts.And main beating cap bears to come
From the huge impulse force of engine detonation pressure etc., very high, the contact surface of main beating cap and bolt is required to the Tightening moment of bolt
It is required that it is also very high, since main beating cap casting obtains, slight loose or material prescription variation or chemical element
Unevenly all the hardness of local location can be caused uneven, this causes the hardness of the contact surface of main beating cap and bolt to be difficult
Even consistent, so as to cause under the action of identical Tightening moment, the fastening force of bolt is inconsistent, and non-uniform fastening force will be led
It causes main bearing hole bearing shell fit clearance inconsistent, leads to the inconsistent of oil film thickness, the insufficient lubrication of shafting, and then influence to start
The service life of machine.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
It hardens main beating cap the purpose of this utility model is to provide a kind of laser, lacking for the prior art can be overcome
Point.
To achieve the above object, the utility model provides a kind of laser and hardens main beating cap, comprising: main beating cap sheet
Body, main beating cap ontology lower half portion have half slot；Boss, boss are located at the bottom at main beating cap ontology both ends；Screw hole, spiral shell
Hole is opened in the both ends of main beating cap ontology, and screw hole is for accommodating fixing bolt；And quench-hardened case, quench-hardened case are located at screw hole week
It encloses, quench-hardened case is annular in shape, and there are gaps between the interior edge of quench-hardened case and the outer of screw hole；Wherein, the hardness of quench-hardened case is big
In the hardness of fixing bolt, and wherein, the hardness of quench-hardened case is less than the hardness of main beating cap ontology.
In a preferred embodiment, the hardness of quench-hardened case is 200-220HBW bigger than the hardness of fixing bolt.
In a preferred embodiment, the width of quench-hardened case is 1-5mm.
In a preferred embodiment, the width in gap is 2-7mm.
Compared with prior art, laser according to the present utility model main beating cap of hardening has the advantages that this is practical new
Type is around the screw hole of bolt of main bearing cap mounting surface with one circle quench-hardened case of laser processing；To make bolt pressure-bearing surface hardness be deteriorated
Become smaller, the Tightening moment deviation of bolt is also just smaller, is conducive to the uniform of mounting torque, reduces the unevenness of Tightening moment
It is even, make to fasten relatively reliable, the program is at low cost, and it is easy to accomplish, the failure rate of part can be effectively reduced.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of main beating cap of being hardened according to the laser of one embodiment of the utility model.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1, including: main beating cap sheet according to the laser of the preferred embodiments of the present invention main beating cap of hardening
Body 1, quench-hardened case 2, screw hole 3 and boss 5.Wherein, main beating cap ontology lower half portion has half slot 4, and boss 5 is located at main shaft
Hold the bottom at lid ontology both ends.Screw hole 3 is opened in the both ends of main beating cap ontology, and screw hole 3 is for accommodating fixing bolt.Quench-hardened case
2 are located at around screw hole 3, and quench-hardened case 2 is annular in shape, and there are gaps between the interior edge of quench-hardened case 2 and the outer of screw hole 3.Wherein,
The hardness of quench-hardened case 2 is greater than the hardness of fixing bolt, and wherein, and the hardness of quench-hardened case 2 is less than the hardness of main beating cap ontology.
In a preferred embodiment, the hardness of quench-hardened case is 200-220HBW bigger than the hardness of fixing bolt.
In a preferred embodiment, the width of quench-hardened case is 1-5mm.
In a preferred embodiment, the width in gap is 2-7mm.
It manufactures laser as described above to harden the method for main beating cap, includes the following steps: casting and forming main beating cap sheet
Body, main beating cap ontology lower half portion have half slot, and the bottom at main beating cap ontology both ends has boss, and main beating cap
The both ends of ontology offer screw hole；And quench-hardened case is formed using laser processing around screw hole, wherein quench-hardened case is located at
Around screw hole, quench-hardened case is annular in shape, and there are gaps between the interior edge of quench-hardened case and the outer of screw hole；Wherein, quench-hardened case
Hardness is greater than the hardness of fixing bolt, and wherein, and the hardness of quench-hardened case is less than the hardness of main beating cap ontology.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (4)
- The main beating cap 1. a kind of laser hardens, which is characterized in that laser main beating cap of hardening includes:Main beating cap ontology, main beating cap ontology lower half portion have half slot；Boss, the boss are located at the bottom at main beating cap ontology both ends；Screw hole, the screw hole are opened in the both ends of the main beating cap ontology, and the screw hole is for accommodating fixing bolt；AndQuench-hardened case, the quench-hardened case are located at around the screw hole, and the quench-hardened case is annular in shape, and the interior edge of the quench-hardened case with There are gaps between the outer of the screw hole；Wherein, the hardness of the quench-hardened case is greater than the hardness of the fixing bolt, and wherein, the hardness of the quench-hardened case is less than The hardness of the main beating cap ontology.
- The main beating cap 2. laser as described in claim 1 hardens, which is characterized in that the hardness of the quench-hardened case is than the fixation The big 200-220HBW of the hardness of bolt.
- The main beating cap 3. laser as described in claim 1 hardens, which is characterized in that the width of the quench-hardened case is 1-5mm.
- The main beating cap 4. laser as described in claim 1 hardens, which is characterized in that the width in the gap is 2-7mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822076147.5U CN209067360U (en) | 2018-12-10 | 2018-12-10 | Laser hardens main beating cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822076147.5U CN209067360U (en) | 2018-12-10 | 2018-12-10 | Laser hardens main beating cap |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209067360U true CN209067360U (en) | 2019-07-05 |
Family
ID=67101495
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822076147.5U Active CN209067360U (en) | 2018-12-10 | 2018-12-10 | Laser hardens main beating cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209067360U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339971A (en) * | 2018-12-10 | 2019-02-15 | 广西玉柴机器股份有限公司 | Laser hardens main beating cap and its manufacturing method |
-
2018
- 2018-12-10 CN CN201822076147.5U patent/CN209067360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109339971A (en) * | 2018-12-10 | 2019-02-15 | 广西玉柴机器股份有限公司 | Laser hardens main beating cap and its manufacturing method |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230118 Address after: No.88 Tianqiao West Road, Yulin City, Guangxi Zhuang Autonomous Region Patentee after: Guangxi Yuchai Ship Electric Power Co.,Ltd. Address before: 537005 No. 88 flyover West Road, the Guangxi Zhuang Autonomous Region, Yulin Patentee before: Guangxi Yuchai Machinery Co.,Ltd. |