CN2269582Y - Measuring instrument for unverticality of piston crank mechanism - Google Patents
Measuring instrument for unverticality of piston crank mechanism Download PDFInfo
- Publication number
- CN2269582Y CN2269582Y CN 95232170 CN95232170U CN2269582Y CN 2269582 Y CN2269582 Y CN 2269582Y CN 95232170 CN95232170 CN 95232170 CN 95232170 U CN95232170 U CN 95232170U CN 2269582 Y CN2269582 Y CN 2269582Y
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- center
- pole
- stake body
- measuring
- head
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- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model relates to a measuring instrument for non-verticality of a piston crank mechanism. In the utility model, the both ends a bracket body 6 are symmetrically provided with two circular rings 15 which are respectively connected with the bracket body 6 by three formers 16 which are uniformly distributed, the tail end of a positioning top rod 8 is provided with a return spring 9, conical locking nuts 7 arranged on the both ends of the bracket body 6 contact the tail end of the positioning top rod 8, thus the radial direction of the positioning top rod 8 can be extended or returned, and a dial gauge measuring head 11 is fixed on a measuring head rack which is arranged on the both sides of a center rod. When the utility model is used for measuring the axial displacement of a crank pin, the measuring head rack can be changed into a measuring block 13, and the utility model has the advantages of low cost, light weight, convenient operation and high measuring accuracy.
Description
The utility model belongs to field of measuring technique, relates in particular to a kind of novel reciprocating block slider crank mechanism non-squareness measurement instrument.
The non-perpendicularity of reciprocating block slider crank mechanism is the significant data that influences its serviceability, the connecting rod center line out of plumb crank pin center line of diesel engine particularly, can make dynamic action point and crank pin in the firing chamber bear fulcrum not point-blank, thereby produce a moment, make the connecting rod longitudinal oscillation, cause mechanical engine knock.But in prior art, domestic medium and small diesel engine is made the data that this respect can't be measured always by repair plant, and what have roughly proofreaies and correct by backguy large-scale diesel engine, can not obtain more definite data.Though have indivedual enterprises to adopt more advanced optical instrument, this optical instrument involves great expense, complex structure, debug difficulties is difficult in medium-sized and small enterprises and applies.In addition, in prior art, after body, bent axle, support and the cylinder sleeve assembling, the measurement of crank pin axial displacement there is not any desirable method yet.
The purpose of this utility model will overcome the deficiency of above-mentioned prior art exactly, provides a kind of cost low, easy to use, and measurement result is more accurate, and can be used for measuring the novel piston crank mechanism non-squareness measurement instrument of crank pin axial displacement.
The purpose of this utility model is achieved in that a kind of reciprocating block slider crank mechanism non-squareness measurement instrument, comprise stake body 6 and the center-pole 3 that passes from the stake body center, it is characterized in that symmetrically arranged two annulus 15 on stake body 6 two ends, be connected with stake body 6 by three equally distributed formers 16 respectively, the positioning mandril 8 that can move radially on former 16 passes the hole 17 from annulus 15, the tail end of positioning mandril 8 is provided with retracing spring 9, cone locking nut 7 on stake body 6 two ends contacts with the tail end of positioning mandril 8, to different directions turn set nut 7, can make positioning mandril 8 extend radially out residual return, be positioned at the locating ring 4 that stake body 6 tops are enclosed within on the center-pole 3 and be provided with lock-screw 18, the lower end of center-pole 3 is provided with the head-measuring rack vertical with center-pole 12, and clock gauge gauge head 11 is fixed on the head-measuring rack of center-pole both sides.
In order to realize the purpose of this utility model better, a clock gauge gauge head 11 only is set on the head-measuring rack 12 of center-pole 3 one sides, carve a scale on the annulus of the upper end of stake body 3, the positioning pointer 14 that is fixed on the center-pole 3 is consistent with the axial angle of head-measuring rack 12.
When this measuring instrument was used to measure crank pin axial displacement, the lower end of center-pole 3 was a gauge block 13.
Adopt the technical program measuring instrument, cost is low, and is in light weight, easy to use, and measuring accuracy is higher, and can an instrument dual-purpose, can be widely used in measuring various reciprocating block slider crank mechanisms.
Fig. 1 is the embodiment principle schematic of the utility model reciprocating block slider crank mechanism non-squareness measurement instrument.
Fig. 2 is used to measure the embodiment principle schematic of crank pin axial displacement for the utility model.
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
Referring to Fig. 1, stake body 6 of this measuring instrument and the center-pole 3 that passes from the stake body center adopt titanium-aluminium alloy.Symmetrically arranged two annulus 15 on stake body 6 two ends are connected with stake body 6 by three equally distributed formers 16 respectively.The positioning mandril 8 that can move radially on former 16 passes the hole 17 from annulus 15.Annular retracing spring 9 is enclosed within on the tail end boss of one group of three positioning mandril 8, and end has an inclined-plane to the people that repent of positioning mandril 8, and the conical surface of the cone locking nut 7 on stake body 6 two ends contacts with the tail end inclined-plane of positioning mandril 8.On set nut 7, be provided with turn driving lever 10, to different directions turn set nut 7, can be good for positioning mandril 8 and extend radially out or return, be positioned at the locating ring 4 that stake body 6 tops are enclosed within on the center-pole 3 and be provided with lock-screw 18, locating ring 4 can be locked on the center-pole 3.The lower end of center-pole 3 is provided with the head-measuring rack vertical with center-pole 12, is provided with a clock gauge gauge head 11 on the head-measuring rack 12 of center-pole 3 one sides.Carve a scale on the annulus of the upper end of stake body 3, the positioning pointer 14 that is fixed on the center-pole 3 is consistent with the axial angle of head-measuring rack 12.For easy to operate, be provided with suspension ring device 1 and 2 in the upper end of center-pole 3.
Be example with the non-perpendicularity of measuring assembling rear crank pin center and cylinder sleeve center line below, the using method of this measuring instrument is described.This measuring instrument is put into cylinder sleeve, and turn set nut 7 extends radially out backstay 8, measuring instrument is fixed in the cylinder sleeve, and be benchmark so just with the inner surface of cylinder liner, the axis of determining center-pole 3 is the center line of cylinder sleeve.Move down center-pole 3, the clock gauge gauge head is contacted with crank, tighten screw 18 then, locating ring 4 is locked in and stake body upper surface position contacting.Write down the reading of clock gauge,, write down the reading of clock gauge once more then with center-pole 3 Rotate 180 degree.The difference of this twice reading promptly is the non-perpendicularity of crank with respect to the cylinder sleeve center line.In like manner can survey cylinder sleeve center line non-perpendicularity, pack into the non-perpendicularity of its center line and body bottom surface behind the body of cylinder sleeve.
Referring to Fig. 2, when this measuring instrument is used to measure crank pin axial displacement, the head-measuring rack 12 of center-pole 3 lower ends is unloaded, change gauge block 13 and get final product.
Claims (3)
1. reciprocating block slider crank mechanism non-squareness measurement instrument, comprise stake body 6 and the center-pole 3 that passes from the stake body center, it is characterized in that symmetrically arranged two annulus 15 on stake body 6 two ends, be connected with stake body 6 by three equally distributed formers 16 respectively, the positioning mandril 8 that can move radially on former 16 passes the hole 17 from annulus 15, the tail end of positioning mandril 8 is provided with retracing spring 9, cone locking nut 7 on stake body 6 two ends contacts with the tail end of positioning mandril 8, to different directions turn set nut 7, positioning mandril 8 is extended radially out or return, be positioned at the locating ring 4 that stake body 6 tops are enclosed within on the center-pole 3 and be provided with lock-screw 18, the lower end of center-pole 3 is provided with the survey vertical with center-pole and closes frame 12, and clock gauge gauge head 11 is fixed on the head-measuring rack of center-pole both sides.
2. reciprocating block slider crank mechanism non-squareness measurement instrument according to claim 1, it is characterized in that only on the head-measuring rack 12 of center-pole 3 one sides, being provided with a clock gauge gauge head 11, carve a scale on the annulus of the upper end of stake body 3, the positioning pointer 14 that is fixed on the center-pole 3 is consistent with the axial angle of head-measuring rack 12.
3. reciprocating block slider crank mechanism non-squareness measurement instrument according to claim 1, when it is characterized in that this measuring instrument is used to measure crank pin axial displacement, the lower end of center-pole is a gauge block 13.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232170 CN2269582Y (en) | 1995-09-07 | 1995-09-07 | Measuring instrument for unverticality of piston crank mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95232170 CN2269582Y (en) | 1995-09-07 | 1995-09-07 | Measuring instrument for unverticality of piston crank mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2269582Y true CN2269582Y (en) | 1997-12-03 |
Family
ID=33876611
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95232170 Expired - Fee Related CN2269582Y (en) | 1995-09-07 | 1995-09-07 | Measuring instrument for unverticality of piston crank mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2269582Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996752A (en) * | 2021-10-29 | 2022-02-01 | 北京航空航天大学 | Wax mold vertical position positioning device and positioning method for precision casting |
-
1995
- 1995-09-07 CN CN 95232170 patent/CN2269582Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113996752A (en) * | 2021-10-29 | 2022-02-01 | 北京航空航天大学 | Wax mold vertical position positioning device and positioning method for precision casting |
| CN113996752B (en) * | 2021-10-29 | 2022-06-28 | 北京航空航天大学 | Wax mold vertical position positioning device and positioning method for precision casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |