CN215262420U - Gear fatigue testing device for new energy power assembly differential mechanism - Google Patents
Gear fatigue testing device for new energy power assembly differential mechanism Download PDFInfo
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- CN215262420U CN215262420U CN202121031381.1U CN202121031381U CN215262420U CN 215262420 U CN215262420 U CN 215262420U CN 202121031381 U CN202121031381 U CN 202121031381U CN 215262420 U CN215262420 U CN 215262420U
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Abstract
The utility model relates to a differential mechanism test technical field, and a gear fatigue test device for new forms of energy power assembly differential mechanism is disclosed, including testboard and differential mechanism subassembly, the upper end left side front end fixedly connected with input dynamometer machine of testboard, the right side of input dynamometer machine is equipped with the reducing gear box, the inside of reducing gear box is equipped with one-level reduction gears, and the output of input dynamometer machine is connected with one-level reduction gears's input, the right side of reducing gear box is equipped with experimental box, the lateral wall lower extreme front side of experimental box is rotated through first bearing and is connected with the bull stick, the fixed cover of pole wall of bull stick has connected movable gear, the bull stick is connected with one-level reduction gears's output. The utility model discloses a speed ratio and ambient temperature of simulation reduction gear can make the test result laminating reality more, improve the precision of test result, and assembly when differential mechanism assembly tests is more simple and convenient.
Description
Technical Field
The utility model relates to a differential mechanism test technical field especially relates to a gear fatigue test device for new forms of energy power assembly differential mechanism.
Background
The differential assembly is used as a key part of the power assembly, has great influence on the performance of the whole vehicle, although the differential assembly of the new energy electric vehicle is mainly designed and manufactured by referring to the differential assembly of the traditional vehicle, the power assembly of the electric vehicle is greatly different from the traditional vehicle, the working characteristic of a motor is different from the characteristic of an engine, the speed reducer is different from a speed changer and the matching mode of the speed reducer and the speed changer, and therefore the differential assembly is particularly important for the gear fatigue test of the differential of the new energy power assembly.
At present, with the popularization of electric vehicles, the differential assembly also has more and more problems, becomes the weakest link in a power assembly system, the test requirement is extremely vigorous, the domestic differential assembly test resources and means are still very deficient, a better differential assembly test method is not provided, the gear fatigue test aiming at the differential assembly has the problems of more complicated test assembly and more inconvenient use, the working rotating speed of the differential assembly in a speed reducer cannot be simulated, and the test result is greatly different, so the gear fatigue test device for the new energy power assembly differential is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving among the prior art and having the test assembly more loaded down with trivial details to the gear fatigue test of differential mechanism assembly, use comparatively inconveniently, and can not simulate the operating speed of differential mechanism assembly in the reduction gear, lead to the test result to differ great problem, and the gear fatigue test device who is used for new forms of energy power assembly differential mechanism that proposes.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a gear fatigue testing device for a new energy power assembly differential mechanism comprises a test board and a differential mechanism component, wherein an input dynamometer is fixedly connected to the front end of the left side of the upper end of the test board, a reduction gearbox is arranged on the right side of the input dynamometer, a primary speed reducing mechanism is arranged inside the reduction gearbox, the output end of the input dynamometer is connected with the input end of the primary speed reducing mechanism, a test box is arranged on the right side of the reduction gearbox, a rotating rod is rotatably connected to the front side of the lower end of the side wall of the test box through a first bearing, a moving gear is fixedly sleeved on the rod wall of the rotating rod and connected with the output end of the primary speed reducing mechanism, a driven gear is movably placed inside the test box and meshed with the moving gear, the driven gear is arranged in a hollow mode, and is connected with a fixing mechanism and connected with the differential mechanism component through the fixing mechanism, the load dynamometer is fixedly connected to the left end and the right end of the rear side of the upper end of the test board, and the input ends of the two load dynamometers are connected with the mounting mechanism and connected with the differential mechanism assembly through the mounting mechanism.
Preferably, the test box divide into box and lower box, the lateral wall all seted up the semicircular groove in opposite directions one end rear side about going up box and lower box, and two semi-axles of differential mechanism subassembly all pass two semicircular groove activities of homonymy and set up, the upper end fixedly connected with control by temperature change box of going up the box, the fixed a set of electric rod that is equipped with in inside of control by temperature change box, the equal fixedly connected with drum in both ends around the control by temperature change box, and be located the inside fixed fan that is equipped with of drum of rear side, two the equal fixedly connected with connecting pipe of the opposite one end of drum, and the one end that the homonymy drum was kept away from to two connecting pipes is respectively with the fixed intercommunication setting of lateral wall around the last box.
Preferably, the upper end of the cylinder positioned at the front side of the temperature control box is fixedly inserted with a temperature sensor.
Preferably, the groove walls of the four semicircular grooves are fixedly connected with semicircular rubber pads.
Preferably, the opposite ends of the front and rear outer side walls of the upper box and the lower box are fixedly connected with locking blocks, and the two locking blocks on the same side are in threaded connection with locking bolts together.
Preferably, one-level reduction gears includes pinion and gear wheel, the fixed grafting of the lateral wall of pinion has the input shaft, and the axle wall of input shaft passes through the second bearing and is connected with the lateral wall front end rotation of reducing gear box, the fixed grafting of the lateral wall of gear wheel has the output shaft, and the axle wall of output shaft passes through the third bearing and is connected with the lateral wall rear end rotation of reducing gear box, the gear wheel meshes with the pinion mutually and is connected, the input shaft is connected with the output transmission of input dynamometer machine, output shaft connection has drive assembly and is connected with the bull stick through drive assembly.
Preferably, the transmission assembly comprises a transmission rod and two groups of first mounting bolts, the transmission rod is arranged between the reduction gearbox and the test box, one end of the output shaft, which is opposite to the rotating rod, and the left end and the right end of the transmission rod are fixedly connected with first flanges, and the two first flanges on the same side are connected with the rod wall of the group of first mounting bolts on the same side through threads.
Preferably, the fixing mechanism comprises two fixing blocks, two connecting blocks and two fixing bolts, the two fixing blocks are fixedly connected with the front inner side wall and the rear inner side wall of the driven wheel respectively, the two connecting blocks are fixedly connected with the front end and the rear end of a planet gear carrier of the differential assembly respectively, and the two fixing blocks and the same-side connecting blocks are connected with the rod wall threads of the same-side fixing bolts together.
Preferably, the two installation mechanisms all include two sets of second flanges and two sets of second installation bolts, every two of group the second flange is equallyd divide and is do not connected with the input of homonymy load dynamometer machine and the half axle tip fixed connection of homonymy differential mechanism subassembly, and two of same group the second flange is common with the pole wall threaded connection of a set of second installation bolts of homonymy.
Compared with the prior art, the utility model provides a gear fatigue test device for new forms of energy power assembly differential mechanism possesses following beneficial effect:
1. this a gear fatigue test device for new forms of energy power assembly differential mechanism, through the testboard that is equipped with, input dynamometer machine, reducing gear box, one-level reduction gears, test box, from the cooperation each other of driving wheel, moving gear, bull stick and two load dynamometer machines, can carry out fatigue test to the gear of differential mechanism subassembly, through the rotational speed ratio of simulation reduction gear, make the test result laminate reality more, improve the precision of test result, and differential mechanism subassembly assembly is more simple and convenient.
2. This a gear fatigue test device for new forms of energy power assembly differential mechanism, through the control by temperature change box that is equipped with, a set of glow stick, two drums, mutually supporting of fan and two connecting pipes, when the test, can increase the ambient temperature around the differential mechanism subassembly, simulate its actual work ambient temperature, further make the test result laminating actual, through two latch segments that are equipped with, mutually supporting of two locking bolts and four semi-circular rubber pads, the degree of tightness when can guaranteeing the test box test, through the fixed establishment who is equipped with, the fixed assembly of differential mechanism subassembly of can being convenient for, through two installation mechanisms that are equipped with, the assembly between differential mechanism subassembly and the load dynamometer machine of can being convenient for.
The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses a rotational speed ratio and ambient temperature of simulation reduction gear can make the test result laminating reality more, improve the precision of test result, and assembly when differential mechanism assembly tests is more simple and convenient.
Drawings
Fig. 1 is a schematic structural view of a gear fatigue testing device for a new energy powertrain differential mechanism provided by the present invention;
FIG. 2 is a schematic top view of the structure of FIG. 1;
FIG. 3 is an enlarged view of the portion A in FIG. 2;
fig. 4 is a schematic top view of the test cartridge of fig. 1.
In the figure: the test device comprises a test board 1, a differential mechanism assembly 2, an input dynamometer 3, a reduction gearbox 4, a test box 5, a moving gear 6, a driven gear 7, a load dynamometer 8, a temperature control box 9, an electric heating rod 10, a cylinder 11, a fan 12, a connecting pipe 13, a temperature sensor 14, a semicircular rubber pad 15, a locking block 16, a locking bolt 17, a small gear 18, a large gear 19, a transmission rod 20, a first mounting bolt 21, a first flange 22, a fixing block 23, a connecting block 24, a fixing bolt 25, a second flange 26 and a second mounting bolt 27.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Embodiment one refers to fig. 1-4, a gear fatigue testing device for a new energy power assembly differential mechanism comprises a test board 1 and a differential mechanism component 2, an input dynamometer 3 is fixedly connected to the front end of the left side of the upper end of the test board 1, a reduction gearbox 4 is arranged on the right side of the input dynamometer 3, a first-stage speed reducing mechanism is arranged inside the reduction gearbox 4, the output end of the input dynamometer 3 is connected with the input end of the first-stage speed reducing mechanism, a test box 5 is arranged on the right side of the reduction gearbox 4, a rotating rod is rotatably connected to the front side of the lower end of the side wall of the test box 5 through a first bearing, a movable gear 6 is fixedly sleeved on the rod wall of the rotating rod, the rotating rod is connected with the output end of the first-stage speed reducing mechanism, a driven gear 7 is movably placed inside the test box 5, the driven gear 7 is meshed with the movable gear 6, the inside of the driven gear 7 is hollow, the driven gear 7 is connected with a fixing mechanism and is connected with the differential mechanism through the fixing mechanism and the differential mechanism component 2, the equal fixedly connected with load dynamometer 8 in both ends about the upper end rear side of testboard 1, and the input of two load dynamometers 8 all is connected with installation mechanism and is connected with differential mechanism subassembly 2 through installation mechanism.
In the second embodiment, as shown in fig. 3-4, the test box 5 is divided into an upper box and a lower box, the opposite ends of the left and right side walls of the upper box and the lower box are respectively provided with a semicircular groove at the rear side, the two half shafts of the differential assembly 2 are movably arranged through the two semicircular grooves at the same side, the upper end of the upper box is fixedly connected with a temperature control box 9, a group of electric heating rods 10 is fixedly arranged inside the temperature control box 9, the front and rear ends of the temperature control box 9 are respectively fixedly connected with a cylinder 11, a fan 12 is fixedly arranged inside the cylinder 11 at the rear side, the opposite ends of the two cylinders 11 are respectively fixedly connected with connecting pipes 13, and the ends of the two connecting pipes 13 far away from the cylinder 11 at the same side are respectively fixedly communicated with the front and rear side walls of the upper box; a temperature sensor 14 is fixedly inserted at the upper end of the cylinder 11 positioned at the front side of the temperature control box 9; the groove walls of the four semicircular grooves are fixedly connected with semicircular rubber pads 15; the opposite ends of the front outer side wall and the rear outer side wall of the upper box and the lower box are fixedly connected with locking blocks 16, and the two locking blocks 16 on the same side are jointly in threaded connection with locking bolts 17; during the test, start fan 12 and a set of glow stick 10, glow stick 10 can heat the air, fan 12 can pass through connecting pipe 13 with the air after the heating and carry into inside test box 5, thereby can simulate the ambient temperature of differential mechanism subassembly 2 during operation, further make the test result more laminate reality, through semi-circular rubber pad 15, two latch segments 16 and two locking bolt 17, can be fixed with last box and lower box locking, go up the leakproofness between box and the lower box during the assurance test, prevent hot-blast outflow, temperature sensor 14 is convenient for people's controlled temperature.
In a third embodiment, as shown in fig. 2, the primary speed reducing mechanism comprises a pinion 18 and a bull gear 19, an input shaft is fixedly inserted into the side wall of the pinion 18, the shaft wall of the input shaft is rotatably connected with the front end of the side wall of the reduction gearbox 4 through a second bearing, an output shaft is fixedly inserted into the side wall of the bull gear 19, the shaft wall of the output shaft is rotatably connected with the rear end of the side wall of the reduction gearbox 4 through a third bearing, the bull gear 19 is meshed with the pinion 18, the input shaft is in transmission connection with the output end of the input dynamometer 3, and the output shaft is connected with a transmission assembly and is connected with a rotating rod through a transmission assembly; the transmission assembly comprises a transmission rod 20 and two groups of first mounting bolts 21, the transmission rod 20 is arranged between the reduction gearbox 4 and the test box 5, one end of the output shaft, which is opposite to the rotating rod, and the left end and the right end of the transmission rod 20 are fixedly connected with first flanges 22, and the two first flanges 22 on the same side are jointly in threaded connection with the rod wall of the group of first mounting bolts 21 on the same side; the output end of the input dynamometer 3 can rotate the input shaft, so that the pinion 18 can rotate, the gearwheel 19 can be driven to rotate, the output shaft is driven to rotate, the transmission rod 20 can be driven to rotate, and the rotating rod can be driven to rotate through the transmission rod 20, so that the moving gear 6 is driven to rotate.
In the fourth embodiment, as shown in fig. 1 and 3, the fixing mechanism includes two fixing blocks 23, two connecting blocks 24 and two fixing bolts 25, the two fixing blocks 23 are respectively and fixedly connected with the front and rear inner side walls of the driven wheel 7, the two connecting blocks 24 are respectively and fixedly connected with the front and rear ends of the planet carrier of the differential assembly 2, and the two fixing blocks 23 and the connecting block 24 on the same side are both in threaded connection with the rod wall of the fixing bolt 25 on the same side; the two mounting mechanisms respectively comprise two groups of second flanges 26 and two groups of second mounting bolts 27, each group of two second flanges 26 are respectively and fixedly connected with the input end of the load dynamometer 8 on the same side and the end part of the half shaft of the differential assembly 2 on the same side, and the two second flanges 26 in the same group are jointly in threaded connection with the rod wall of the group of second mounting bolts 27 on the same side; assembly between the differential assembly 2 and the driven wheel 7 and the input of the two load-dynamometers 8 can be facilitated.
In the utility model, when in use, the upper box of the test box 5 is opened, the differential assembly 2 to be tested is inserted into the driven wheel 7, the planet gear carrier of the differential assembly 2 is fixedly locked with the driven wheel 7 by screwing the fixing bolt 25 and is placed into the test box 5, two half shafts of the differential assembly 2 are placed into the semicircular grooves at the same side, the driven wheel 7 is meshed with the moving gear 6, the upper box cover is lifted, then the two half shafts of the differential assembly 2 are respectively fixedly installed with the input shafts of the two load dynamometers through the four second flanges 26 and the two groups of second mounting bolts 27, the input dynamometer 3 is started, the output end can drive the input shaft to rotate, the pinion 18 can be driven to rotate, the gearwheel 19 can be driven to rotate, the output shaft is driven to rotate, the rotating rod is driven to rotate through the transmission rod 20, thereby can drive moving gear 6 and rotate, and then can drive and rotate from driving wheel 7 to the planet carrier that drives differential mechanism subassembly 2 rotates, thereby can drive two semi-axles of differential mechanism subassembly 2 and rotate, can test the load through two load dynamometer machines 8, until the gear failure, can learn the gear fatigue degree through the data that record.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (9)
1. A gear fatigue testing device for a new energy power assembly differential mechanism comprises a test board (1) and a differential mechanism component (2) and is characterized in that an input dynamometer (3) is fixedly connected to the front end of the left side of the upper end of the test board (1), a reduction box (4) is arranged on the right side of the input dynamometer (3), a primary speed reduction mechanism is arranged inside the reduction box (4), the output end of the input dynamometer (3) is connected with the input end of the primary speed reduction mechanism, a test box (5) is arranged on the right side of the reduction box (4), a rotating rod is rotatably connected to the front side of the lower end of the side wall of the test box (5) through a first bearing, a movable gear (6) is fixedly sleeved on the rod wall of the rotating rod, the rotating rod is connected with the output end of the primary speed reduction mechanism, a driven wheel (7) is movably placed inside the test box (5), driven wheel (7) meshes with moving gear (6) and is connected, the inside from driving wheel (7) is the cavity setting, and is connected with fixed establishment and is connected with differential mechanism subassembly (2) through fixed establishment from driving wheel (7), equal fixedly connected with load dynamometer (8) in both ends about the upper end rear side of testboard (1), and the input of two load dynamometers (8) all is connected with installation mechanism and is connected with differential mechanism subassembly (2) through installation mechanism.
2. The gear fatigue testing device for the new energy drive train differential mechanism according to claim 1, it is characterized in that the test box (5) is divided into an upper box and a lower box, the rear sides of the opposite ends of the left side wall and the right side wall of the upper box and the lower box are both provided with semicircular grooves, and the two half shafts of the differential mechanism component (2) are movably arranged through the two semicircular grooves at the same side, the upper end of the upper box is fixedly connected with a temperature control box (9), a group of electric heating rods (10) is fixedly arranged inside the temperature control box (9), the front end and the rear end of the temperature control box (9) are both fixedly connected with a cylinder (11), a fan (12) is fixedly arranged in the cylinder (11) positioned at the rear side, the opposite ends of the two cylinders (11) are fixedly connected with connecting pipes (13), and one ends of the two connecting pipes (13) far away from the cylinder (11) at the same side are respectively fixedly communicated with the front side wall and the rear side wall of the upper box.
3. The gear fatigue testing device for the new energy drive train differential mechanism according to claim 2, characterized in that a temperature sensor (14) is fixedly inserted at the upper end of a cylinder (11) positioned at the front side of the temperature control box (9).
4. The gear fatigue testing device for the new energy power assembly differential mechanism as claimed in claim 2, wherein a semicircular rubber pad (15) is fixedly connected to each of the groove walls of the four semicircular grooves.
5. The gear fatigue testing device for the new energy drive assembly differential mechanism according to claim 2, characterized in that the opposite ends of the front and rear outer side walls of the upper and lower cases are fixedly connected with locking blocks (16), and the two locking blocks (16) on the same side are jointly in threaded connection with locking bolts (17).
6. The gear fatigue testing device for the new energy power assembly differential mechanism is characterized in that the primary speed reducing mechanism comprises a small gear (18) and a large gear (19), an input shaft is fixedly inserted into the side wall of the small gear (18), the shaft wall of the input shaft is rotatably connected with the front end of the side wall of the reduction gearbox (4) through a second bearing, an output shaft is fixedly inserted into the side wall of the large gear (19), the shaft wall of the output shaft is rotatably connected with the rear end of the side wall of the reduction gearbox (4) through a third bearing, the large gear (19) is meshed with the small gear (18), the input shaft is in transmission connection with the output end of the input dynamometer (3), and the output shaft is connected with a transmission component and is connected with a rotating rod through the transmission component.
7. The gear fatigue testing device for the new energy powertrain differential mechanism according to claim 6, characterized in that the transmission component comprises a transmission rod (20) and two sets of first mounting bolts (21), the transmission rod (20) is arranged between the reduction gearbox (4) and the test box (5), one end of the output shaft opposite to the rotation rod and the left and right ends of the transmission rod (20) are fixedly connected with first flanges (22), and the two first flanges (22) on the same side are in threaded connection with the rod wall of the one set of first mounting bolts (21) on the same side.
8. The gear fatigue testing device for the new energy drive assembly differential mechanism according to claim 1, characterized in that the fixing mechanism comprises two fixing blocks (23), two connecting blocks (24) and two fixing bolts (25), the two fixing blocks (23) are respectively and fixedly connected with the front inner side wall and the rear inner side wall of the driven wheel (7), the two connecting blocks (24) are respectively and fixedly connected with the front end and the rear end of a planetary gear carrier of the differential mechanism component (2), and the two fixing blocks (23) and the connecting blocks (24) on the same side are both in threaded connection with the rod wall of the fixing bolt (25) on the same side.
9. The gear fatigue testing device for the new energy powertrain differential mechanism according to claim 1, wherein the two mounting mechanisms comprise two sets of second flanges (26) and two sets of second mounting bolts (27), each set of the two second flanges (26) is fixedly connected with the input end of the load dynamometer (8) on the same side and the end of the half shaft of the differential assembly (2) on the same side, and the two second flanges (26) on the same set are connected with the rod wall of the set of second mounting bolts (27) on the same side in a threaded manner.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031381.1U CN215262420U (en) | 2021-05-14 | 2021-05-14 | Gear fatigue testing device for new energy power assembly differential mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121031381.1U CN215262420U (en) | 2021-05-14 | 2021-05-14 | Gear fatigue testing device for new energy power assembly differential mechanism |
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| CN215262420U true CN215262420U (en) | 2021-12-21 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114858446A (en) * | 2022-04-24 | 2022-08-05 | 江苏盛安传动股份公司 | High-precision gear anti-fatigue detection device for transmission |
| CN118258604A (en) * | 2024-05-31 | 2024-06-28 | 常州恒玖传动科技有限公司 | Detection device of speed reducer |
-
2021
- 2021-05-14 CN CN202121031381.1U patent/CN215262420U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114858446A (en) * | 2022-04-24 | 2022-08-05 | 江苏盛安传动股份公司 | High-precision gear anti-fatigue detection device for transmission |
| CN118258604A (en) * | 2024-05-31 | 2024-06-28 | 常州恒玖传动科技有限公司 | Detection device of speed reducer |
| CN118258604B (en) * | 2024-05-31 | 2024-09-20 | 常州恒玖传动科技有限公司 | Detection device of speed reducer |
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