CN202707910U - Ceramimetallurgical balance block for crankshaft of gasoline engine - Google Patents
Ceramimetallurgical balance block for crankshaft of gasoline engine Download PDFInfo
- Publication number
- CN202707910U CN202707910U CN 201220427472 CN201220427472U CN202707910U CN 202707910 U CN202707910 U CN 202707910U CN 201220427472 CN201220427472 CN 201220427472 CN 201220427472 U CN201220427472 U CN 201220427472U CN 202707910 U CN202707910 U CN 202707910U
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- CN
- China
- Prior art keywords
- powder metallurgy
- crank
- ceramimetallurgical
- main shaft
- gasoline engine
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a ceramimetallurgical balance block for a crankshaft of a gasoline engine. The balance block is characterized by comprising a ceramimetallurgical semicircular block and a ceramimetallurgical crank; a fixing hole for one end of a spindle is formed in a connecting part between the ceramimetallurgical semicircular block and the ceramimetallurgical crank; a fixing hole for the crankshaft is formed on the end part of the ceramimetallurgical crank; and one side of the inner wall of the fixing hole for one end of the spindle is a planar wall. The ceramimetallurgical balance block for the crankshaft of the gasoline engine is pressed and sintered into a whole in a ceramimetallurgical way, one side of the inner wall of the fixing hole for one end of the spindle is the planar wall, and one end of the spindle is inserted into the fixing hole for one end of the spindle for interference fit, so that the ceramimetallurgical balance block is easy to machine, convenient to mount and favorable for market promotion, equipment is simplified, and production cost is lowered.
Description
Technical field
The utility model relates to a kind of improvement of gasoline engine crank equilibrium block, specifically a kind of gasoline engine crank powder metallurgy equilibrium block.
Background technique
The gasoline engine crank equilibrium block is the accessory that makes the gasoline engine crank stability of rotation, requires dimensional accuracy high, and tolerance is 0.02mm.Present employed gasoline engine crank equilibrium block, comprise half nahlock and crank, be provided with main shaft perpendicular to half nahlock in a side of half nahlock and crank connection part, be provided with the fixed hole that turns arbor in the end of crank, the fast thickness of semicircle is greater than the thickness of crank, with the initial weight balanced action, all adopt alloyed steel to pass through casting or turning moulding.This gasoline engine crank equilibrium block and the existing deficiency of production method thereof are: because the machining accuracy of gasoline engine crank equilibrium block is high, so, adopt alloyed steel by the method production of casting or turning moulding, be difficult to ensure the quality of products, and equipment is complicated, difficulty of processing is high, cost is high; Because main shaft and half nahlock are fixed as one, so turning processing is more difficult.
Summary of the invention
The purpose of this utility model is to provide that a kind of dimensional accuracy is high, main shaft and half nahlock are fixing by pegging graft, the gasoline engine crank powder metallurgy equilibrium block of make manufacture simplification, easily installing.
In order to reach above purpose, the technological scheme that the utility model adopts is: this gasoline engine crank powder metallurgy equilibrium block, it is characterized in that: it comprises powder metallurgy half nahlock and powder metallurgy crank, be provided with the fixed hole of main shaft one end at the connection part of powder metallurgy half nahlock and powder metallurgy crank, be provided with the fixed hole that turns arbor in the end of powder metallurgy crank, the powder metallurgy semicircle is fast and the powder metallurgy crank is symmetrical with respect to the fixed hole of main shaft one end; Inwall one side of the fixed hole of described main shaft one end is planomural, and an end of main shaft inserts the interior interference of fixed hole of main shaft one end and fixes.
The utility model is also implemented by following measure: the side opening's edge at the fixed hole of main shaft one end is provided with the powder metallurgy protruding circular ring, the interior opening's edge of powder metallurgy protruding circular ring is the annulus arc shaped surface, is provided with ring groove in the opposite side opening's edge of the fixed hole of main shaft one end;
Annulus arc shaped surface, the ring groove on the opposite side opening's edge in powder metallurgy protruding circular ring on the fixed hole one side opening's edge of the fixed hole of described powder metallurgy half nahlock, powder metallurgy crank, main shaft one end and main shaft one end, the powder metallurgy protruding circular ring on the opening's edge are that powder metallurgy mixed powder compacting sintering is an integral body;
Described powder metallurgy mixed powder is: copper powder 1-5%, nickel powder 1.5-3%, molybdenum powder 0.3-0.6%, graphite 0.6-0.8%, plasticizing agent 0.5-1%, surplus is the mixed powder of iron powder.
The beneficial effects of the utility model are: compare with present gasoline engine crank equilibrium block, owing to adopting powder metallurgy pressing, being sintered in an integral body, a side is planomural on the inwall of the fixed hole of main shaft one end, one end of main shaft inserts the interior interference fit of fixed hole of main shaft one end, so easily process, be convenient to installation, simplified equipment, reduced cost of production, the marketing that is conducive to.
Description of drawings
Fig. 1 is that schematic diagram is looked on the gasoline engine crank powder metallurgy balance block structure left side that the utility model is produced;
Fig. 2 is that schematic diagram is looked on the gasoline engine crank powder metallurgy balance block structure right side that the utility model is produced;
Fig. 3 is that the gasoline engine crank powder metallurgy balance block structure produced of the utility model is along the A-A cross-sectional schematic;
Fig. 4 is present gasoline engine crank equilibrium block installment state schematic side view.
Among the figure: 1, powder metallurgy half nahlock; 2, powder metallurgy crank; 3, the fixed hole of main shaft one end; 4, turn the fixed hole of arbor; 5, powder metallurgy protruding circular ring; 6, annulus arc shaped surface; 7, ring groove; 8, planomural.
Embodiment
Make the utility model with reference to Fig. 1, Fig. 2, Fig. 3.This gasoline engine crank powder metallurgy equilibrium block, it is characterized in that: it comprises powder metallurgy half nahlock 1 and powder metallurgy crank 2, be provided with the fixed hole 3 of main shaft one end at the connection part of powder metallurgy half nahlock 1 and powder metallurgy crank 2, be provided with the fixed hole 4 that turns arbor in the end of powder metallurgy crank 2, powder metallurgy semicircle fast 1 and fixed hole 3 symmetries of powder metallurgy crank 2 with respect to main shaft one end are with the initial weight balanced action; Inwall one side of the fixed hole 3 of described main shaft one end is planomural 8, and an end of main shaft inserts the fixed hole 3 interior interference of main shaft one end and fixes.
As improvement of the present utility model: the side opening's edge at the fixed hole 3 of main shaft one end is provided with powder metallurgy protruding circular ring 5, the interior opening's edge of powder metallurgy protruding circular ring 5 is annulus arc shaped surface 6, is provided with ring groove 7 in the opposite side opening's edge of the fixed hole 3 of main shaft one end;
Powder metallurgy protruding circular ring 5 on the fixed hole 3 of described powder metallurgy half nahlock 1, powder metallurgy crank 2, main shaft one end and the fixed hole 3 one side opening's edges of main shaft one end, the annulus arc shaped surface 6 on the powder metallurgy protruding circular ring 5 interior opening's edges, the ring groove on the opposite side opening's edge 7 are an integral body for powder metallurgy mixed powder compacting sintering;
Described powder metallurgy mixed powder is: copper powder 1-5%, nickel powder 1.5-3%, molybdenum powder 0.3-0.6%, graphite 0.6-0.8%, plasticizing agent 0.5-1%, surplus is the mixed powder of iron powder.
Claims (2)
1. gasoline engine crank powder metallurgy equilibrium block, it is characterized in that: it comprises powder metallurgy half nahlock (1) and powder metallurgy crank (2), be provided with the fixed hole (3) of main shaft one end at the connection part of powder metallurgy half nahlock (1) and powder metallurgy crank (2), be provided with the fixed hole (4) that turns arbor in the end of powder metallurgy crank (2); Inwall one side of the fixed hole (3) of described main shaft one end is planomural (8).
2. gasoline engine crank powder metallurgy equilibrium block according to claim 1, it is characterized in that: the side opening's edge at the fixed hole (3) of main shaft one end is provided with powder metallurgy protruding circular ring (5), the interior opening's edge of powder metallurgy protruding circular ring (5) is annulus arc shaped surface (6), is provided with ring groove (7) in the opposite side opening's edge of the fixed hole (3) of main shaft one end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427472 CN202707910U (en) | 2012-08-27 | 2012-08-27 | Ceramimetallurgical balance block for crankshaft of gasoline engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220427472 CN202707910U (en) | 2012-08-27 | 2012-08-27 | Ceramimetallurgical balance block for crankshaft of gasoline engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707910U true CN202707910U (en) | 2013-01-30 |
Family
ID=47588217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220427472 Expired - Fee Related CN202707910U (en) | 2012-08-27 | 2012-08-27 | Ceramimetallurgical balance block for crankshaft of gasoline engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707910U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808898A (en) * | 2012-08-27 | 2012-12-05 | 吕元之 | Powdery metallurgy balance block for crankshaft of gasoline engine and production method for powdery metallurgy balance block |
-
2012
- 2012-08-27 CN CN 201220427472 patent/CN202707910U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102808898A (en) * | 2012-08-27 | 2012-12-05 | 吕元之 | Powdery metallurgy balance block for crankshaft of gasoline engine and production method for powdery metallurgy balance block |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20170827 |