CN202250436U - Double-row main bearing bolt connecting structure of frame-type structure cylinder body - Google Patents
Double-row main bearing bolt connecting structure of frame-type structure cylinder body Download PDFInfo
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- CN202250436U CN202250436U CN201120354463XU CN201120354463U CN202250436U CN 202250436 U CN202250436 U CN 202250436U CN 201120354463X U CN201120354463X U CN 201120354463XU CN 201120354463 U CN201120354463 U CN 201120354463U CN 202250436 U CN202250436 U CN 202250436U
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- main bearing
- cylinder body
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- frame
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- 238000007789 sealing Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 2
- 238000005474 detonation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Abstract
The utility model discloses a double main bearing bolted connection structure of frame structure cylinder block is equipped with the main bearing cap frame that is used for wearing the wrong bolt on the baseplane of cylinder body, through main bearing bolted connection between the baseplane of main bearing cap frame and cylinder body, the cylinder body side connecting bolt who installs on the faying face department of the side of main bearing cap frame and cylinder body passes through mounting flange face is connected, uses four main bearing bolts of main bearing hole axis difference symmetrical arrangement as the center on each main bearing bolt mounting flange face of cylinder body. The utility model discloses effectively improved the compressive stress of contact surface, improved the cohesion, guaranteed effective sealing to the separation and the sliding of effective control faying face reduce main bearing hole deflection, avoid main bearing hole out of round, the assembly stress of control bearing frame reduces the stress level, improves fatigue safety factor, effectively improves the rigidity and the intensity of cylinder body.
Description
Technical field
The utility model relates to the double Main bearing bolt linkage structure of a kind of tower structure cylinder block, particularly relates to the double Main bearing bolt linkage structure that is used for framework and cylinder block assembling.
Background technique
The internal-combustion engine of present main bearing cap frame type housing structure, framework is connected with the side of cylinder block auxiliary bolt through single Main bearing bolt with the assembling of cylinder body.For in, for the internal-combustion engine of low pressure of explosion, the bearing load that is delivered to bearing hole through motion is less, tower structure cylinder body integral intensity and rigidity can meet the demands.But along with improving constantly of internal-combustion engine reinforcing degree, especially detonation pressure is brought up to 200bar when above, and bearing load strengthens; The combination force of cylinder body and framework is not enough; Be easy to generate and separate and slippage, main bearing hole distortion aggravation, main bearing hole loses circle; This will directly influence the reliability of crankshaft operation, and then influence the reliability of whole motor.
Available frame and cylinder body Placement are consulted in the accompanying drawing shown in Figure 1ly, comprise cylinder body 1, main bearing cap framework 2, Main bearing bolt 3 and side of cylinder block connecting bolt 4, and the mounting flange face of cylinder body 1 side connecting bolt 4 is positioned near cylinder body and the framework junction plane.In order to tackle bearing load that high detonation pressure causes higher and the junction plane and the bearing hole problem on deformation that produce, the mode of taking usually is to improve the bolt grade, strengthen bolt pretightening and perhaps strengthen the diameter of bolt.But bolt pretightening adds conference further raises bearing support stress, aggravates the deficiency of intensity, even will cause the material lift of cylinder body, and casting and processing cost increase; Strengthen the diameter of bolt, corresponding the width of bearing support will strengthen for enough bearing areas are provided, and this will influence grade length of opening of bent axle.
Another kind of available frame and cylinder body Placement are consulted in the accompanying drawing shown in Figure 2ly, comprise cylinder body 1, main bearing cap framework 2, Main bearing bolt 3 and side of cylinder block connecting bolt 4.Structure among this kind structure and accompanying drawing Fig. 1 equally all adopts single Main bearing bolt; Different is, and the side of cylinder block connecting bolt runs through framework is connected with cylinder body; The change of this kind structure can only be played the effect of strengthening connection and sealing, does not have the effect of good and essence for separation, slippage and the bearing hole distortion of junction plane; Because side of cylinder block bolt-through framework is connected with cylinder body, will cause the processing of cost of parts and whole cylinder body, manufacture cost to increase in addition.
Chinese patent CN 200710073519.2 discloses name and has been called the V-type engine cylinder body, and the framework of this patent and cylinder body Placement are comparatively complicated, and disclosed technological scheme does not solve the problems of the technologies described above yet.
Summary of the invention
The purpose of the utility model is to provide a kind of and guarantees that the cylinder block bearing support can not produce excessive deformation when bearing higher bearing load; And reduce cost of parts and material lift to greatest extent and casting and the processing cost of bringing, the good condition that crankshaft operation is provided; Improve the complete machine maintainability, effectively improve the Placement of the framework and the cylinder body of bearing support strength and stiffness.
For realizing above-mentioned purpose, the utility model adopts following technological scheme:
The double Main bearing bolt linkage structure of a kind of tower structure cylinder block; On the bottom plane of cylinder body, be provided with and be used to wear the main bearing cap framework of twisting bolt; Be connected through Main bearing bolt between the bottom plane of said main bearing cap framework and cylinder body; The main bearing cap framework is connected through the side of cylinder block connecting bolt of installing on the mounting flange face with the junction plane place of the side of cylinder body; Each Main bearing bolt of cylinder body is installed on the flanged surface, on this flanged surface, is center line four Main bearing bolts of symmetric arrangement in twos with the main bearing hole axis, and four Main bearing bolts are positioned on the straight line.
Further, be 1.2 times that the spacing L1 of interior row's Main bearing bolt of center arrangement is not less than main bearing aperture d with the main bearing hole axis, to guarantee bolt the evenly stressed of enough installing spaces and main bearing seat zone arranged.
Further, it is 2.1 times that the spacing L2 that effluxes Main bearing bolt of center arrangement is not more than main bearing aperture d with the main bearing hole axis, to reach the evenly stressed of integrally-built compactedness of framework and junction plane.
Compared with present technology the utility model has following advantage: 1. effectively improve the pressure stress of surface of contact, improve combination force, guarantee effectively sealing.2. effectively control the separation and the slippage of junction plane, reduce the main bearing hole amount of deformation, avoid main bearing hole to lose circle.3. needn't strengthen bolt pretightening, improve the bolt grade, thereby the erection stress of Control Shaft bearing reduces stress level, improves fatigue safety coefficient, effectively improves the rigidity and the intensity of cylinder body.4. provide bent axle good operating condition, thereby prolong the working life of motor.
Description of drawings
Accompanying drawing 1 is available frame and cylinder body linkage structure schematic representation.
Accompanying drawing 2 is another kind of available frame and cylinder body linkage structure schematic representation.
Accompanying drawing 3 is the utility model framework and cylinder body linkage structure schematic representation.
Accompanying drawing 4 is the local linkage structure schematic representation of the utility model cylinder body, main bearing cap framework, Main bearing bolt and side of cylinder block connecting bolt.
Among the figure: 1, cylinder body, 2, the main bearing cap framework, 3, Main bearing bolt, 4, the side of cylinder block connecting bolt.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further to describe in detail:
The double Main bearing bolt linkage structure of a kind of tower structure cylinder block of the utility model design; On the bottom plane of cylinder body 1, be provided with and be used to wear the main bearing cap framework 2 of twisting bolt; Be connected through Main bearing bolt 3 between the bottom plane of main bearing cap framework 2 and cylinder body 1; Main bearing cap framework 2 is connected through the side of cylinder block connecting bolt of installing on the mounting flange face 4 with the junction plane place of the side of cylinder body 1; Each Main bearing bolt of cylinder body 1 is installed on the flanged surface, on this flanged surface, is center line four Main bearing bolts 3 of symmetric arrangement in twos with the main bearing hole axis, and the symmetry in twos that present embodiment refers to i.e. two close Main bearing bolts 3 of distance is symmetrical in the main bearing hole axis; Two distance Main bearing bolts 3 far away also are symmetrical in the main bearing hole axis, and four Main bearing bolts 3 are positioned on the straight line.
Be respectively four Main bearing bolts 3 of symmetric arrangement of center with the main bearing hole axis on each Main bearing bolt mounting flange face of cylinder body 1.
The mounting flange face of side of cylinder block connecting bolt 4 is positioned near cylinder body and the framework junction plane; Side of cylinder block connecting bolt 4 is in order to play good interconnect function; The position of Main bearing bolt 3 needs reasonably to distribute; The spacing L1 that with the main bearing hole axis is interior row's Main bearing bolt 3 of center arrangement confirms the L1=d+2e+ diameter of bolt according to bearing aperture; Wherein, e is the basic wall thickness at bolt hole to main bearing hole edge, generally is not less than 2-3mm; D is the main bearing aperture; L1 generally is not less than 1.2d; With the main bearing hole axis is that the pitch of bolts L2 that effluxes of center arrangement mainly arranges according to the installing space and the stress situation of bearing block flange face, guarantees that promptly bolt has the evenly stressed of enough installing spaces and main bearing seat zone; For reaching the integrally-built compactedness of framework, L2 generally is not more than 2.1d.
Claims (3)
1. double Main bearing bolt linkage structure of tower structure cylinder block; On the bottom plane of cylinder body (1), be provided with and be used to wear the main bearing cap framework (2) of twisting bolt; Be connected through Main bearing bolt (3) between the bottom plane of said main bearing cap framework (2) and cylinder body (1); Main bearing cap framework (2) is connected through the side of cylinder block connecting bolt of installing on the mounting flange face (4) with the junction plane place of the side of cylinder body (1); It is characterized in that: each Main bearing bolt of cylinder body (1) is installed on the flanged surface, on this flanged surface, is center line four Main bearing bolts of symmetric arrangement (3) in twos with the main bearing hole axis, and four Main bearing bolts (3) are positioned on the straight line.
2. the double Main bearing bolt linkage structure of tower structure cylinder block according to claim 1 is characterized in that: with the main bearing hole axis is 1.2 times that the spacing L1 of interior row's Main bearing bolt (3) of center arrangement is not less than main bearing aperture d.
3. the double Main bearing bolt linkage structure of tower structure cylinder block according to claim 1 and 2 is characterized in that: with the main bearing hole axis is 2.1 times that the spacing L2 that effluxes Main bearing bolt (3) of center arrangement is not more than main bearing aperture d.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120354463XU CN202250436U (en) | 2011-09-21 | 2011-09-21 | Double-row main bearing bolt connecting structure of frame-type structure cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120354463XU CN202250436U (en) | 2011-09-21 | 2011-09-21 | Double-row main bearing bolt connecting structure of frame-type structure cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202250436U true CN202250436U (en) | 2012-05-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120354463XU Expired - Lifetime CN202250436U (en) | 2011-09-21 | 2011-09-21 | Double-row main bearing bolt connecting structure of frame-type structure cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202250436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089469A (en) * | 2016-08-04 | 2016-11-09 | 广西玉柴机器股份有限公司 | Tunnel type cylinder block |
-
2011
- 2011-09-21 CN CN201120354463XU patent/CN202250436U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089469A (en) * | 2016-08-04 | 2016-11-09 | 广西玉柴机器股份有限公司 | Tunnel type cylinder block |
| CN106089469B (en) * | 2016-08-04 | 2018-11-27 | 广西玉柴机器股份有限公司 | Tunnel type cylinder block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: DONGFENG COMMERCIAL VEHICLE CO., LTD. Free format text: FORMER OWNER: DONGFENG AUTOMOBILE CO., LTD. Effective date: 20130906 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 430033 WUHAN, HUBEI PROVINCE TO: 442001 SHIYAN, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130906 Address after: Shiyan City, Hubei province 442001 City Road No. 2 District zhangjiewan Patentee after: DONGFENG TRUCKS Co.,Ltd. Address before: 430033 No. 10 Dongfeng Avenue, Wuhan economic and Technological Development Zone, Hubei Patentee before: DONGFENG MOTER Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |