CN204116040U - Commercial car transmission shift fork fatigue life testing apparatus - Google Patents
Commercial car transmission shift fork fatigue life testing apparatus Download PDFInfo
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- CN204116040U CN204116040U CN201420499453.9U CN201420499453U CN204116040U CN 204116040 U CN204116040 U CN 204116040U CN 201420499453 U CN201420499453 U CN 201420499453U CN 204116040 U CN204116040 U CN 204116040U
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Abstract
The utility model relates to a kind of commercial car transmission shift fork fatigue life testing apparatus, it is characterized in that: base side is vertically fixedly connected with side plate, guide plate is fixedly connected on side plate by guide plate bolt, shift fork loads axle and vertically runs through guide plate, shift fork loads axle bottom and is inserted on base, and shift fork loads axle top and is fixedly connected with loading joint; Shift fork is enclosed within shift fork and loads on axle, shift fork loads axle by shift fork grip nut and shift fork and is fixedly connected with, fork pin stop collar fishbolt runs through base, fork pin stop collar locating piece, fork pin stop collar successively from base end face, fork pin stop collar fishbolt top is fixedly connected with fork pin stop collar grip nut, the border wall of fork pin stop collar has groove, and the groove that shift fork inserts fork pin stop collar coordinates with fork pin stop collar.It is by the appropriate design to test unit structure, size and tolerance, loads axle simultaneously and carries out forced lubrication, provide the lubricating condition identical with real vehicle to shift fork, and during guarantee bench test, shift fork can simulate real vehicle stress truly.
Description
Technical field
The utility model relates to a kind of commercial car transmission shift fork fatigue life testing apparatus, belongs to the technical field of commercial car transmission design exploitation.
Background technology
Commercial car transmission shift fork can complete the gear shift function of variator by promoting clutch collar, be the important feature part performing gear shift action and transmit berth-changing strength.Selector fork subjects larger alternate load at work, produces larger alterante stress and distortion, when shift fork strength and stiffness deficiency, very easily damage, directly had influence on the dependability of commercial car gearbox selector in inside.
In view of the vital role that selector fork plays in commercial car variator, be necessary the fatigue life test carrying out selector fork before complete vehicle test, ensure the dependability of gearbox selector.Traditional experiment adopts to pitch the fixing mode of pin by shift fork, load, the flexible life of checking shift fork to shift fork, but in test, the stress of shift fork and real vehicle have larger difference, can not verify the flexible life of shift fork really.Not yet find at present the comparatively scientific and rational bench test device that commercial car transmission shift fork is verified fatigue lifetime at home.
Summary of the invention
The purpose of this utility model is to provide a kind of commercial car transmission shift fork fatigue life testing apparatus, it is by the appropriate design to test unit structure, size and tolerance, axle is loaded to shift fork simultaneously and carry out forced lubrication, there is provided the lubricating condition identical with real vehicle, during guarantee bench test, shift fork can simulate real vehicle stress truly.
The technical solution of the utility model is achieved in that commercial car transmission shift fork fatigue life testing apparatus, it is characterized in that: base side is vertically fixedly connected with side plate, guide plate is fixedly connected on side plate by guide plate bolt, shift fork loads axle and vertically runs through guide plate, shift fork loads axle bottom and is inserted on base, guide plate and shift fork load the synapsis that is coupling upper composite bush, shift fork loads axle bottom and there is lower composite bush at base contacts place, and shift fork loads axle top and is fixedly connected with loading joint, shift fork is enclosed within shift fork and loads on axle, its concrete horizontal level is between guide plate and base, shift fork loads axle by shift fork grip nut and shift fork and is fixedly connected with, fork pin stop collar locating piece is fixedly connected on base, fork pin stop collar becomes disc, fork pin stop collar is arranged on fork pin stop collar locating piece, fork pin stop collar fishbolt runs through base successively from base end face, fork pin stop collar locating piece, fork pin stop collar, fork pin stop collar fishbolt top is fixedly connected with fork pin stop collar grip nut, fork pin stop collar coordinates spacing by fork pin stop collar fishbolt and fork pin stop collar grip nut, the border wall of fork pin stop collar has groove, the groove that shift fork inserts fork pin stop collar coordinates with fork pin stop collar.
Good effect of the present utility model is that it passes through the appropriate design to test unit structure, size and tolerance, axle is loaded to shift fork simultaneously and carry out forced lubrication, there is provided the lubricating condition identical with real vehicle, during guarantee bench test, shift fork can simulate real vehicle stress truly.Compared with traditional structure, the utility model is when carrying out bench test checking, and the stress of shift fork and lubricating status are all closer to reality.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model.
Fig. 2 is sectional structure chart of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further: as Fig. 1, shown in 2, commercial car transmission shift fork fatigue life testing apparatus, it is characterized in that: base 1 side is vertically fixedly connected with side plate 2, guide plate 3 is fixedly connected on side plate 2 by guide plate bolt 4, shift fork loads axle 6 and vertically runs through guide plate 3, shift fork loads axle 6 bottom and is inserted on base 1, guide plate 3 and shift fork load axle 6 contact position upper composite bush 7, shift fork loads axle 6 bottom and there is lower composite bush 14 base 1 contact position, shift fork loads axle 6 top and is fixedly connected with loading joint 5, shift fork 9 is enclosed within shift fork and loads on axle 6, its concrete horizontal level is between guide plate 3 and base 1, shift fork 9 loads axle 6 by shift fork grip nut 8 and shift fork and is fixedly connected with, fork pin stop collar locating piece 13 is fixedly connected on base 1, fork pin stop collar 12 one-tenth discs, fork pin stop collar 12 is arranged on fork pin stop collar locating piece 13, fork pin stop collar fishbolt 10 runs through base 1 successively from base 1 bottom surface, fork pin stop collar locating piece 13, fork pin stop collar 12, fork pin stop collar fishbolt 10 top is fixedly connected with fork pin stop collar grip nut 11, fork pin stop collar 12 coordinates spacing by fork pin stop collar fishbolt 10 and fork pin stop collar grip nut 11, the border wall of fork pin stop collar 12 has groove, the groove that shift fork 9 inserts fork pin stop collar 12 coordinates with fork pin stop collar 12.
Shift fork 9 is spacing by fork pin stop collar 12, and the recess width of fork pin stop collar 12 pitches pin thickness slightly larger than shift fork 9, enables fork pin real simulation real vehicle stress; Selector fork 9 shift fork axis hole place loads axle 6 shaft shoulder by shift fork and shift fork grip nut 8 is fixed, and it is locking that shift fork grip nut 8 scribbles bolted glue; Shift fork loads axle 6 and adopts real vehicle declutch shift shaft material and carried out corresponding thermal treatment, can bear larger bending stress; Shift fork is loaded axle 6 and is supported and guiding by the composite bush 7 and 14 of two ends high manufacturing accuracy, effectively can reduce shift fork load the frictional resistance of axle 6 in reciprocatory movement by the lubrication of lubricating oil; By controlling the critical size of fork pin stop collar locating piece 13, base 1, shift fork loading axle 6 support holes, ensure that shift fork 9 is accurately located between charger and load device.
For the 26S Proteasome Structure and Function feature of certain commercial car transmission shift fork, application the utility model implements transmission shift fork fatigue life test.As shown in Figure 1, shift fork is loaded axle 6 and is loaded by linear actuators by linear actuator jointing 5, and the size of reciprocal loading force and frequency and the actual applying working condition of this car match.Shift fork loads axle 6 and slides in two ends composite bush 7 and 14, builds the rubber cement oil groove that a circle is closed, pour into a certain amount of lubricating oil around composite bush 7 and 14, ensures that shift fork loads the lubrication of axle 6.The shaft shoulder of axle 6 is loaded and shift fork 9 is fixed by shift fork grip nut 8 by shift fork, make loading force load axle 6 by shift fork and reach shift fork 9, the fork pin of shift fork 9 is spacing by pitching pin stop collar 12, fork pin stop collar 12 is fixed on locating piece 13 by fork pin stop collar fishbolt 10 and nut 11, and locating piece 13 welds with base.By a whole set of power transmission and charger, the loading force of loader is delivered to shift fork place under the condition of accurate simulation real use state.This commercial car transmission shift fork test result of fatigue life and reality are coincide, and well demonstrate the actual fatigue lifetime of selector fork.
Claims (1)
1. commercial car transmission shift fork fatigue life testing apparatus, it is characterized in that: base side is vertically fixedly connected with side plate, guide plate is fixedly connected on side plate by guide plate bolt, shift fork loads axle and vertically runs through guide plate, shift fork loads axle bottom and is inserted on base, guide plate and shift fork load the synapsis that is coupling upper composite bush, and shift fork loads axle bottom and there is lower composite bush at base contacts place, and shift fork loads axle top and is fixedly connected with loading joint, shift fork is enclosed within shift fork and loads on axle, its concrete horizontal level is between guide plate and base, shift fork loads axle by shift fork grip nut and shift fork and is fixedly connected with, fork pin stop collar locating piece is fixedly connected on base, fork pin stop collar becomes disc, fork pin stop collar is arranged on fork pin stop collar locating piece, fork pin stop collar fishbolt runs through base successively from base end face, fork pin stop collar locating piece, fork pin stop collar, fork pin stop collar fishbolt top is fixedly connected with fork pin stop collar grip nut, fork pin stop collar coordinates spacing by fork pin stop collar fishbolt and fork pin stop collar grip nut, the border wall of fork pin stop collar has groove, the groove that shift fork inserts fork pin stop collar coordinates with fork pin stop collar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499453.9U CN204116040U (en) | 2014-09-02 | 2014-09-02 | Commercial car transmission shift fork fatigue life testing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499453.9U CN204116040U (en) | 2014-09-02 | 2014-09-02 | Commercial car transmission shift fork fatigue life testing apparatus |
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| CN204116040U true CN204116040U (en) | 2015-01-21 |
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| CN201420499453.9U Active CN204116040U (en) | 2014-09-02 | 2014-09-02 | Commercial car transmission shift fork fatigue life testing apparatus |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105043762A (en) * | 2015-08-21 | 2015-11-11 | 湖北汽车工业学院 | Fatigue testing machine for gear shift fork |
| CN105136453A (en) * | 2015-09-30 | 2015-12-09 | 浙江万里扬变速器股份有限公司 | Strength testing system of speed changer shifting fork |
| CN106289758A (en) * | 2015-06-08 | 2017-01-04 | 上汽通用五菱汽车股份有限公司 | Clutch separation rocking arm-shift fork axle-shift fork subsystem stiffness measurement device |
| CN106441885A (en) * | 2016-12-06 | 2017-02-22 | 重庆理工大学 | Fatigue endurance test system for gear selecting and shifting mechanisms of speed changers |
| CN106989653A (en) * | 2017-05-24 | 2017-07-28 | 浙江万里扬股份有限公司 | Shift fork blank cubing |
| CN107063599A (en) * | 2017-04-24 | 2017-08-18 | 重庆理工大学 | A kind of stiffness test method of gearshift fork |
| CN107246965A (en) * | 2017-05-23 | 2017-10-13 | 吉林工程技术师范学院 | A kind of shift of transmission fork strength test system |
| CN110132405A (en) * | 2019-05-29 | 2019-08-16 | 中国第一汽车股份有限公司 | A kind of the noise identifying system and method for gear of seting out |
| CN113324742A (en) * | 2021-04-27 | 2021-08-31 | 东风电驱动系统有限公司 | Plastic shifting fork strength detection device and strength and durability verification method |
-
2014
- 2014-09-02 CN CN201420499453.9U patent/CN204116040U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106289758A (en) * | 2015-06-08 | 2017-01-04 | 上汽通用五菱汽车股份有限公司 | Clutch separation rocking arm-shift fork axle-shift fork subsystem stiffness measurement device |
| CN106289758B (en) * | 2015-06-08 | 2018-07-24 | 上汽通用五菱汽车股份有限公司 | Clutch separation rocking arm-shift fork axle-shift fork subsystem stiffness measurement device |
| CN105043762A (en) * | 2015-08-21 | 2015-11-11 | 湖北汽车工业学院 | Fatigue testing machine for gear shift fork |
| CN105136453B (en) * | 2015-09-30 | 2017-11-24 | 浙江万里扬股份有限公司 | A kind of transmission selector fork strength test system |
| CN105136453A (en) * | 2015-09-30 | 2015-12-09 | 浙江万里扬变速器股份有限公司 | Strength testing system of speed changer shifting fork |
| CN106441885B (en) * | 2016-12-06 | 2018-10-09 | 重庆理工大学 | Speed variator gear shift mechanism fatigue endurance test system |
| CN106441885A (en) * | 2016-12-06 | 2017-02-22 | 重庆理工大学 | Fatigue endurance test system for gear selecting and shifting mechanisms of speed changers |
| CN107063599A (en) * | 2017-04-24 | 2017-08-18 | 重庆理工大学 | A kind of stiffness test method of gearshift fork |
| CN107246965A (en) * | 2017-05-23 | 2017-10-13 | 吉林工程技术师范学院 | A kind of shift of transmission fork strength test system |
| CN106989653A (en) * | 2017-05-24 | 2017-07-28 | 浙江万里扬股份有限公司 | Shift fork blank cubing |
| CN110132405A (en) * | 2019-05-29 | 2019-08-16 | 中国第一汽车股份有限公司 | A kind of the noise identifying system and method for gear of seting out |
| CN110132405B (en) * | 2019-05-29 | 2021-12-21 | 中国第一汽车股份有限公司 | Gear off and on noise identification system and method |
| CN113324742A (en) * | 2021-04-27 | 2021-08-31 | 东风电驱动系统有限公司 | Plastic shifting fork strength detection device and strength and durability verification method |
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