CN204177671U - A kind of engine crankshaft fatigue test clamper - Google Patents
A kind of engine crankshaft fatigue test clamper Download PDFInfo
- Publication number
- CN204177671U CN204177671U CN201420392778.7U CN201420392778U CN204177671U CN 204177671 U CN204177671 U CN 204177671U CN 201420392778 U CN201420392778 U CN 201420392778U CN 204177671 U CN204177671 U CN 204177671U
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- China
- Prior art keywords
- spring plate
- steel spring
- fatigue test
- engine crankshaft
- bearing
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Abstract
The utility model relates to engine field of fixtures, particularly relates to a kind of engine crankshaft fatigue test clamper.The utility model provides a kind of engine crankshaft fatigue test clamper, comprise bearing and main clamp, main clamp is bolted on bearing, also comprise loading fixture block, crank throw exemplar, first steel spring plate, junction steel plate, steel spring plate connects bearing, force snesor, vibration head, described loading fixture block, first steel spring plate, junction steel plate, second steel spring plate, steel spring plate connects bearing, force snesor, vibration head Hard link and all on same straight line between two, described crank throw exemplar is connected with described loading fixture block, described king journal lid and described connecting rod cap are fixed on described main clamp.The utility model simplifies tool structure, makes the loading at crank throw place stressed more direct, can be convenient, requires to calculate loading force accurately, improves system stiffness, improve the frequency loaded, shorten test period, improve work efficiency according to exemplar loading moment.
Description
Technical field
The present invention relates to engine field of fixtures, particularly relate to a kind of engine crankshaft fatigue test clamper.
Background technology
Fixture suspender is originally too complicated, by hanger bar, main clamp and crank throw exemplar are suspended on the side of bearing, vibration head linking springs steel plate, steel spring plate is then connected with main clamp, as shown in Figure 1, the bang path of power is: vibration head-steel spring plate connects bearing-steel spring plate-main clamp-crank throw exemplar.Such device, according to moment conservation, there is cyclical variation by along with moving up and down of vibration head in the moment that crank throw exemplar is subject to; there is nonlinear decay in transmittance process; therefore, in order to ensure test accurately, need to calibrate data before every batch experiment; And being connected on clamp mount because main clamp is through hanger bar, the rigidity of whole system is lower, thus causes loading frequency lower.Above 2 reduce test efficiency all to a certain extent, extend test period.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of engine crankshaft fatigue test clamper, this fixture, for simplifying tool structure, Optimized loading path, improves system stiffness.
The present invention passes through by the following technical solutions, the invention provides a kind of engine crankshaft fatigue test clamper, comprise bearing and main clamp, main clamp is bolted on bearing, also comprise loading fixture block, crank throw exemplar, first steel spring plate, junction steel plate, steel spring plate connects bearing, force snesor, vibration head, described loading fixture block, first steel spring plate, junction steel plate, second steel spring plate, steel spring plate connects bearing, force snesor, vibration head Hard link and all on same straight line between two, described crank throw exemplar is connected with described loading fixture block, described main clamp is fixed with king journal lid and described connecting rod cap.
As a further improvement on the present invention, the connecting rod neck of described crank throw exemplar and bent axle neck are fixed on described main clamp by described main clamp bearing cap, and another bent axle neck is connected with described loading fixture block.
As a further improvement on the present invention, described fixture also comprises connecting rod neck examination point, and described connecting rod neck examination point to be positioned on described crank throw exemplar and to be positioned at the below of described connecting rod neck.
As a further improvement on the present invention, the bottom that described steel spring plate connects bearing is isosceles trapezoid, and the bottom of this isosceles trapezoid is stair shape.
As a further improvement on the present invention, described steel spring plate connects the centre of rest base is isosceles trapezoid.
As a further improvement on the present invention, it is L-type that described steel spring plate connects bearing, and its side is trapezoidal.
As a further improvement on the present invention, described trapezoidal be middle hollow out, the trapezoidal of a circular hole is arranged at bottom.
As a further improvement on the present invention, the thickness of described steel spring plate is 2.5mm.
As a further improvement on the present invention, the thickness of described junction steel plate is 10mm.
As a further improvement on the present invention, described force snesor is the cylinder of diameter 150mm, high 42mm.
The invention has the beneficial effects as follows: owing to eliminating hanger bar, directly one end main bearing journal is fixed in frock, simplifies tool structure, make the loading at crank throw place stressed more direct, can be convenient, require to calculate loading force according to exemplar loading moment accurately.The analysis of test findings is easier, and conclusion (of pressure testing) is more accurate; New frock major part is all hard link, improves system stiffness, therefore can improve the frequency of loading, shorten test period, improve work efficiency.
Accompanying drawing explanation
Fig. 1 is the structural representation of available engine crankshaft fatigue test fixture;
Fig. 2 is the structural representation of engine crankshaft fatigue test clamper of the present invention;
Fig. 3 is the cut-open view of available engine crankshaft fatigue test fixture;
Fig. 4 is that the steel spring plate of engine crankshaft fatigue test clamper of the present invention connects seat structure schematic diagram;
Fig. 5 is the structural drawing of the junction steel plate of engine crankshaft fatigue test clamper of the present invention;
Fig. 6 is the structural representation of the steel spring plate connection bearing of engine crankshaft fatigue test clamper of the present invention.
Embodiment
Illustrate below in conjunction with accompanying drawing and embodiment the present invention is further described.
Numeral in figure: 1, bearing; 2, main clamp; 3, king journal lid; 4, connecting rod cap; 5, fixture block is loaded; 6, crank throw exemplar; 7, the first steel spring plate; 8, junction steel plate; 9, steel spring plate connects bearing; 10, force snesor; 11, vibration head; 12, connecting rod neck examination point; 13, the second steel spring plate; 20, hanger bar.
As shown in Fig. 2, Fig. 3, Fig. 5, because existing tool structure exists some flaws, redesign whole frock, eliminate hanger bar 20, main clamp 2 is directly fixed on bearing 1 by bolt, connecting rod neck and a bent axle neck of crank throw exemplar 6 are fixed on main clamp by main clamp bearing cap, another maneton is connected with loading fixture block 5, what be connected with loading fixture block 5 is followed successively by the first steel spring plate 7, junction steel plate 8, the second steel spring plate 13, steel spring plate connects bearing 9, force snesor 10, vibration head 11.
As Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, the invention provides a kind of engine crankshaft fatigue test clamper, comprise bearing 1 and main clamp 2, main clamp 2 is bolted on bearing, comprise and load fixture block 5, crank throw exemplar 6, first steel spring plate 7, junction steel plate 8, steel spring plate connects bearing 9, force snesor 10, vibration head 11, described loading fixture block 5, first steel spring plate 7, junction steel plate 8, second steel spring plate 13, steel spring plate connects bearing 9, force snesor 10, vibration head 11 Hard link and all on same straight line between two, described crank throw exemplar 6 is connected with described loading fixture block, described king journal lid 3 and described connecting rod cap 4 are fixed on described main clamp 2.Described force snesor 10 is the cylinder of diameter 150mm, high 42mm.Simplify tool structure; The bang path of power is: vibration head 11-force snesor 10-steel spring plate connects bearing 9-steel spring plate-junction steel plate 8-steel spring plate-loading fixture block 5-crank throw exemplar 6, although the parts of power process are more, but these parts all point-blank, and be all Hard link between each parts, so the moment loaded directly can be loaded into connecting rod neck examination point 12, thus optimize load path.Because whole system only has loading end not fix, therefore also improve system stiffness.
As shown in Figure 2, the connecting rod neck of described crank throw exemplar 6 and bent axle neck are fixed on described main clamp 2 by described main clamp 2 bearing cap, and another bent axle neck is connected with described loading fixture block.
As shown in Figure 2, described fixture also comprises connecting rod neck examination point 12, and described connecting rod neck examination point 12 to be positioned on described crank throw exemplar 6 and to be positioned at the below of described connecting rod neck.
As shown in Figure 2, described junction steel plate 8 is of a size of 80*55*10mm.
As shown in Figure 5, described steel spring plate is of a size of 50*55*2.5mm.
As shown in Figure 6, described steel spring plate connects the centre bottom bearing 9 is isosceles trapezoid.
As shown in Figure 6, the bottom that described steel spring plate connects bearing 9 is isosceles trapezoid, and the bottom of this isosceles trapezoid is stair shape.
As shown in Figure 6, it is L-type that described steel spring plate connects bearing, and its side is trapezoidal.
As shown in Figure 6, described trapezoidal be middle hollow out, the trapezoidal of a circular hole is arranged at bottom.
The rigidity of whole new chucking appliance system is improved, therefore the frequency that testing machine loads can be increased to 50Hz from 40Hz, and the test period of one-piece part tapered to 55 hours from 70 hours, decreased 21%, substantially increase test efficiency, saved stand resource and reduced equipment energy consumption.
Above content is in conjunction with concrete preferred implementation further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. an engine crankshaft fatigue test clamper, comprise bearing and main clamp, main clamp is bolted on bearing, it is characterized in that: also comprise loading fixture block, crank throw exemplar, first steel spring plate, junction steel plate, steel spring plate connects bearing, force snesor, vibration head, described loading fixture block, first steel spring plate, junction steel plate, second steel spring plate, steel spring plate connects bearing, force snesor, vibration head Hard link and all on same straight line between two, described crank throw exemplar is connected with described loading fixture block, described main clamp is fixed with king journal lid and connecting rod cap.
2. engine crankshaft fatigue test clamper according to claim 1, is characterized in that: the connecting rod neck of described crank throw exemplar and bent axle neck are fixed on described main clamp by described main clamp bearing cap, and another bent axle neck is connected with described loading fixture block.
3. engine crankshaft fatigue test clamper according to claim 1, is characterized in that: described fixture also comprises connecting rod neck examination point, and described connecting rod neck examination point to be positioned on described crank throw exemplar and to be positioned at the below of described connecting rod neck.
4. engine crankshaft fatigue test clamper according to claim 1, is characterized in that: the bottom that described steel spring plate connects bearing is isosceles trapezoid, and the bottom of this isosceles trapezoid is stair shape.
5. engine crankshaft fatigue test clamper according to claim 4, is characterized in that: the centre that described steel spring plate connects rest base is isosceles trapezoid.
6. engine crankshaft fatigue test clamper according to claim 1, is characterized in that: it is L-type that described steel spring plate connects bearing, and its side is trapezoidal.
7. engine crankshaft fatigue test clamper according to claim 6, is characterized in that: described trapezoidal be middle hollow out, the trapezoidal of a circular hole is arranged at bottom.
8. engine crankshaft fatigue test clamper according to claim 7, is characterized in that: the thickness of described steel spring plate is 2.5mm.
9. engine crankshaft fatigue test clamper according to claim 1, is characterized in that: the thickness of described junction steel plate is 10mm.
10. engine crankshaft fatigue test clamper according to claim 1, is characterized in that: described force snesor is the cylinder of diameter 150mm, high 42mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420392778.7U CN204177671U (en) | 2014-07-16 | 2014-07-16 | A kind of engine crankshaft fatigue test clamper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420392778.7U CN204177671U (en) | 2014-07-16 | 2014-07-16 | A kind of engine crankshaft fatigue test clamper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204177671U true CN204177671U (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420392778.7U Expired - Fee Related CN204177671U (en) | 2014-07-16 | 2014-07-16 | A kind of engine crankshaft fatigue test clamper |
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| CN (1) | CN204177671U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101534A (en) * | 2014-07-16 | 2014-10-15 | 上汽通用五菱汽车股份有限公司 | Engine crankshaft fatigue test fixture |
| CN107202694A (en) * | 2017-06-26 | 2017-09-26 | 常州机电职业技术学院 | Fatigue durability testing device for engine connecting rod |
| CN114199487A (en) * | 2021-12-07 | 2022-03-18 | 中国第一汽车股份有限公司 | Motor shell vibration fatigue test device and test method |
-
2014
- 2014-07-16 CN CN201420392778.7U patent/CN204177671U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104101534A (en) * | 2014-07-16 | 2014-10-15 | 上汽通用五菱汽车股份有限公司 | Engine crankshaft fatigue test fixture |
| CN104101534B (en) * | 2014-07-16 | 2018-02-27 | 上汽通用五菱汽车股份有限公司 | A kind of engine crankshaft fatigue test clamper |
| CN107202694A (en) * | 2017-06-26 | 2017-09-26 | 常州机电职业技术学院 | Fatigue durability testing device for engine connecting rod |
| CN114199487A (en) * | 2021-12-07 | 2022-03-18 | 中国第一汽车股份有限公司 | Motor shell vibration fatigue test device and test method |
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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 |
Granted publication date: 20150225 Termination date: 20200716 |
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| CF01 | Termination of patent right due to non-payment of annual fee |