CN103158063A - Self-centering supporting block for crankshaft journal - Google Patents
Self-centering supporting block for crankshaft journal Download PDFInfo
- Publication number
- CN103158063A CN103158063A CN201310090235XA CN201310090235A CN103158063A CN 103158063 A CN103158063 A CN 103158063A CN 201310090235X A CN201310090235X A CN 201310090235XA CN 201310090235 A CN201310090235 A CN 201310090235A CN 103158063 A CN103158063 A CN 103158063A
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- block
- semi
- circle
- crankshaft journal
- self
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Abstract
The invention relates to an adjusting device for a crankshaft journal, in particular to a self-centering supporting block for the crankshaft journal. The self-centering support block comprises a semi-circle block, a fall-preventing block and a supporting block body. A semi-circle long groove is formed in the supporting block body. The lower portion of the semi-circle block is a semi-circle base, and the upper portion of the semi-circle block is a cuboid. The semi-circle long groove of the supporting block body and the semi-circle block are assembled in a clearance mode. The upper portion of the semi-circle block is higher than the upper end face of the semi-circle groove. The fall-preventing block and the supporting block body are in interference fit to prevent the semi-circle block from falling off from the interior of the supporting block body. According to the self-centering supporting block, the semi-circle block can rotate freely within a certain range inside the supporting block body. When the crankshaft journal contacts the supporting block, the crankshaft journal only contacts the upper surface of the semi-circle block. Under the effect of pressure, the semi-circle block rotates automatically, an optimum position contacting the crankshaft journal is found, the crankshaft journal is prevented from being pulled and damaged by point contact, and therefore the self-centering function can be achieved.
Description
Technical field
The present invention relates to the adjusting device of crankshaft journal, specifically a kind of crankshaft journal self-centering back-up block.
Background technology
We know, need the center rest support piece to follow the tracks of during crankshaft grinding and support crankshaft journal to avoid crankshaft journal circularity, cylindricity not to reach the phenomenon of technological requirement, and common back-up block need to grind the contact area of adjusting back-up block and crankshaft journal when installing, and point contacts and easily causes crankshaft journal to pull.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art, provide a kind of rational in infrastructure, make simply self-centering back-up block easy for installation.
To achieve these goals, the technical solution used in the present invention is: a kind of crankshaft journal self-centering back-up block comprises semicircle piece, anti-drop block, back-up block body; The back-up block body is provided with semicircle elongated slot; Semicircle piece bottom is semicircular base, and top is cuboid; The semicircle elongated slot of back-up block body and the assembling of semicircle block gap; The top of described semicircle piece is higher than the upper surface of semi-circular groove; Anti-drop block and back-up block body interference assembling stop semicircle piece to come off in the back-up block body.
The upper surface of semicircle elongated slot has the rectangle notch that width is slightly less than semicircle elongated slot diameter.
The upper surface of described semicircle piece top cuboid is provided with diamond coatings.
Crankshaft journal self-centering back-up block of the present invention, semicircle piece is free to rotate in certain limit in the back-up block body, when axle journal contacts with back-up block, axle journal only contacts with semicircle piece upper surface, under pressure, semicircle piece automatic rotating finds the optimum position that contacts with crankshaft journal, avoid a contact to pull axle journal, thereby realize the self-centering function.
Description of drawings
Fig. 1 is crankshaft journal self-centering back-up block assembly structure schematic diagram of the present invention
Fig. 2 is the schematic diagram of back-up block body in Fig. 1;
Fig. 3 is the schematic diagram of semicircle piece in Fig. 1.
In figure: 1. semicircle piece; 2. anti-drop block; 3. back-up block body; 4. semicircle elongated slot; 5. diamond coatings.
The specific embodiment
As shown in Figure 1, a kind of crankshaft journal self-centering back-up block comprises semicircle piece 1, anti-drop block 2, back-up block body 3; As shown in Figure 2, back-up block body 3 is provided with semicircle elongated slot 4, and the upper surface of semicircle elongated slot 4 has the rectangle notch that width is slightly less than semicircle elongated slot diameter; As shown in Figure 3, the bottom of semicircle piece 1 is semicircular base, and top is cuboid, and the upper surface of cuboid is coated with the diamond coatings 5 that roughness reaches 0.025 micron, guarantees the smooth of contact-making surface; The semicircle elongated slot gap assembling of semicircle piece 1 and back-up block body 3, the cuboid on semicircle piece top stretches out from the rectangle notch of semicircle elongated slot, and semicircle piece is free to rotate in certain limit in semicircle elongated slot; The top of semicircle piece 1 guarantees that higher than the about 1mm in the upper surface of semi-circular groove axle journal only contacts the upper surface of semicircle piece 1 top cuboid; Anti-drop block 2 is according to the semicircle elongated slot groove design of back-up block body 3; Anti-drop block 2 and the 3 interference assemblings of back-up block body play the effect that stops semicircle piece, prevent that semicircle piece 1 from coming off in back-up block body 3.
When axle journal contacts with self-centering back-up block of the present invention, axle journal only contacts with the upper surface of semicircle piece 1 top cuboid, under pressure, semicircle piece 1 is at the interior automatic rotating of back-up block body 3, find the optimum position contact-making surface with crankshaft journal, avoid a contact to pull axle journal, thereby realize the self-centering function.
Claims (4)
1. a crankshaft journal self-centering back-up block, is characterized in that: comprise semicircle piece, anti-drop block, back-up block body; The back-up block body is provided with semicircle elongated slot; Semicircle piece bottom is semicircular base, and top is cuboid; The semicircle elongated slot of back-up block body and the assembling of semicircle block gap; The top of described semicircle piece is higher than the upper surface of semi-circular groove; Anti-drop block and back-up block body interference assembling stop semicircle piece to come off in the back-up block body.
2. crankshaft journal self-centering back-up block according to claim 1, it is characterized in that: the upper surface of semicircle elongated slot has the rectangle notch that width is slightly less than semicircle elongated slot diameter.
3. crankshaft journal self-centering back-up block according to claim 1 and 2 is characterized in that: the upper surface of the cuboid on described semicircle piece top is provided with diamond coatings.
4. crankshaft journal self-centering back-up block according to claim 1 and 2, it is characterized in that: the top of described semicircle piece is higher than the upper surface 1～2mm of semi-circular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090235XA CN103158063A (en) | 2013-03-13 | 2013-03-13 | Self-centering supporting block for crankshaft journal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310090235XA CN103158063A (en) | 2013-03-13 | 2013-03-13 | Self-centering supporting block for crankshaft journal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103158063A true CN103158063A (en) | 2013-06-19 |
Family
ID=48581873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310090235XA Pending CN103158063A (en) | 2013-03-13 | 2013-03-13 | Self-centering supporting block for crankshaft journal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103158063A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213118U (en) * | 1987-09-04 | 1988-08-10 | 范朝来 | Mechanical programmable universal bench clamp for fast clamping use |
| CN201609837U (en) * | 2010-02-05 | 2010-10-20 | 湖北汉丹机电有限公司 | Air checking heavy-duty floating support |
| CN102145459A (en) * | 2010-02-05 | 2011-08-10 | 湖北汉丹机电有限公司 | Air detection heavy-duty floating support |
| JP2011179503A (en) * | 2003-12-18 | 2011-09-15 | General Electric Co <Ge> | Gas turbine rotor assembly |
| CN202591661U (en) * | 2012-03-01 | 2012-12-12 | 玉环县瑞坤机械厂 | Two-claw chuck |
| CN202594641U (en) * | 2012-06-07 | 2012-12-12 | 中联重科股份有限公司 | Weight moving device and crane |
| CN103084974A (en) * | 2013-01-20 | 2013-05-08 | 台州市黄岩西诺模具有限公司 | Grinding method of die workpiece with adjustable angle |
| CN203266402U (en) * | 2013-03-13 | 2013-11-06 | 天润曲轴股份有限公司 | Self-centering supporting block for crankshaft journal |
-
2013
- 2013-03-13 CN CN201310090235XA patent/CN103158063A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87213118U (en) * | 1987-09-04 | 1988-08-10 | 范朝来 | Mechanical programmable universal bench clamp for fast clamping use |
| JP2011179503A (en) * | 2003-12-18 | 2011-09-15 | General Electric Co <Ge> | Gas turbine rotor assembly |
| CN201609837U (en) * | 2010-02-05 | 2010-10-20 | 湖北汉丹机电有限公司 | Air checking heavy-duty floating support |
| CN102145459A (en) * | 2010-02-05 | 2011-08-10 | 湖北汉丹机电有限公司 | Air detection heavy-duty floating support |
| CN202591661U (en) * | 2012-03-01 | 2012-12-12 | 玉环县瑞坤机械厂 | Two-claw chuck |
| CN202594641U (en) * | 2012-06-07 | 2012-12-12 | 中联重科股份有限公司 | Weight moving device and crane |
| CN103084974A (en) * | 2013-01-20 | 2013-05-08 | 台州市黄岩西诺模具有限公司 | Grinding method of die workpiece with adjustable angle |
| CN203266402U (en) * | 2013-03-13 | 2013-11-06 | 天润曲轴股份有限公司 | Self-centering supporting block for crankshaft journal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20130619 |
|
| RJ01 | Rejection of invention patent application after publication |