CN219301951U - Testing device for EDU assembly and EDU assembly - Google Patents
Testing device for EDU assembly and EDU assembly Download PDFInfo
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- CN219301951U CN219301951U CN202222971066.8U CN202222971066U CN219301951U CN 219301951 U CN219301951 U CN 219301951U CN 202222971066 U CN202222971066 U CN 202222971066U CN 219301951 U CN219301951 U CN 219301951U
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Abstract
The utility model provides a testing device for an EDU assembly and the EDU assembly, wherein the testing device comprises: the tool support is used for clamping the EDU assembly; the first dynamometer is arranged in the tool support, the side part of the first dynamometer is connected with an output transmission shaft, and the output transmission shaft is used for outputting power to a speed reducer of the EDU assembly; the second dynamometer is arranged outside the tool support and provides torque for a motor rotor shaft of the EDU assembly; the flange tool is arranged between the tool support and the second dynamometer and is connected with the second dynamometer, and the flange tool is provided with a flange shaft piece for connecting a motor rotor shaft of the EDU assembly; the flange tool is provided with a second torque sensor and is used for collecting test data. Through testing arrangement and EDU assembly that this application provided, can carry out reduction gear efficiency test under the integrated casing of keeping the EDU assembly complete state, but integrated casing follow-up reuse to reduce manufacturing cost and manufacturing cost.
Description
Technical Field
The utility model relates to the field of automobile design and manufacture, in particular to a testing device for an EDU assembly and the EDU assembly.
Background
The EDU assembly refers to an electric control driving assembly of an automobile motor and a controller or a built-in motor of a gearbox, and belongs to one of the most important parts of an automobile. At present, the connection between a motor and a speed reducer is usually realized by combining a speed reducer monomer with a motor monomer, the two shells are mutually independent, and an EDU assembly adopting an oil cooling motor appears along with the fact that an integrated shell structure is gradually adopted by an interface end shell of the speed reducer and the motor, namely, the speed reducer shell, the motor shell and a controller shell are integrally designed. In the conventional technology, when the speed reducer unit is used for efficiency test, the integrated shell cannot be applied to test of a testing device in a complete state, and one speed reducer shell is usually required to be designed and processed so as to be convenient to install and test, so that the design cost and the manufacturing cost can be greatly increased; if the integrated shell structure is reduced to only the reducer part, the integrated shell structure is damaged, so that the shell heat dissipation structure, the oil circuit and the like are inconsistent with the complete state, and the test assembly of other projects such as a motor assembly and the like cannot be carried out subsequently, thereby causing waste.
The present utility model has been made in view of the above-described problems.
Disclosure of Invention
The utility model provides a testing device for an EDU assembly and the EDU assembly, and aims to solve the problems that in the prior art, when a speed reducer in the EDU assembly adopting an integrated shell is used for efficiency testing, the integrated shell cannot be applied to testing of the testing device in a complete state, design and processing are required for the integrated shell, so that testing cost is increased, and the integrated shell cannot be reused for other follow-up tests such as a motor assembly.
A first aspect of the present application first provides a testing device for an EDU assembly, comprising:
the tool support is used for clamping the EDU assembly;
the first dynamometer is arranged in the tool support, the side part of the first dynamometer is connected with an output transmission shaft, and the output transmission shaft is used for outputting power to a speed reducer of the EDU assembly;
the second dynamometer is arranged outside the tool support and is used for providing torque for a motor rotor shaft of the EDU assembly;
the flange tool is arranged between the tool support and the second dynamometer and is connected with the second dynamometer, and is provided with a flange shaft piece for spline connection with a motor rotor shaft of the EDU assembly;
the flange tool is provided with a second torque sensor and is used for collecting test data.
Optionally, the frock support includes front end housing support and rear end housing support, and front end housing support includes vertical portion and platform portion, and vertical portion provides the support, and the platform portion inwards extends in order to centre gripping EDU assembly's front end housing, and the rear end cap of EDU assembly is laminated to the inboard of rear end housing support, and cooperation front end housing support is fixed EDU assembly centre gripping.
Optionally, the rear end cap bracket is provided with a first through hole adapted to the flange shaft for the flange shaft to pass through and then connect with the motor rotor shaft of the EDU assembly.
Optionally, the first dynamometer includes a left dynamometer and a right dynamometer, and the left dynamometer and the right dynamometer are relatively arranged to cooperate with the output transmission shaft to be simultaneously connected with the speed reducer of the EDU assembly.
Optionally, the test data includes at least one of motor speed, no-load torque, dynamometer input torque, calibrated dynamometer input torque, decelerator output speed, dynamometer input power, decelerator output power, and decelerator efficiency.
The second aspect of the application provides an EDU assembly, comprising an integrated shell, a motor rotor shaft, a speed reducer and a motor bearing, wherein the integrated shell comprises a speed reducer cavity, a controller cavity and a motor cavity, the speed reducer cavity is arranged at one end of the motor cavity, and the controller cavity is arranged at one side of the motor cavity; the motor bearings are arranged at two ends of the motor cavity and are rotationally connected with the motor rotor shaft; the speed reducer is arranged in the speed reducer cavity and is connected with one end of the motor rotor shaft; one side of the speed reducer cavity is provided with a second through hole, the second through hole is used for connecting the output transmission shaft with the speed reducer, and one end, far away from the speed reducer, of the motor rotor shaft is used for being connected with the flange tool.
Optionally, an oil way through hole is arranged between the speed reducer cavity and the motor cavity for lubricating oil to pass through.
Optionally, a front end cover is arranged at one end of the speed reducer cavity, which is far away from the motor cavity, and the front end cover is used for clamping and fixing the tool support.
Optionally, a rear end cover is arranged at one end of the motor cavity far away from the speed reducer cavity and is used for clamping and fixing the tool support.
Optionally, an adapter plate is arranged at one end of the motor cavity far away from the speed reducer cavity and used for clamping and fixing the tool support.
To sum up, the application provides a testing arrangement and EDU assembly's beneficial effect for EDU assembly has:
through the structural design of the testing device, the tool support fixes the integrated shell of the EDU assembly, so that the integrated shell in the EDU assembly can be kept in a complete state for testing the single speed reducer; the first dynamometer is connected with a speed reducer positioned in the integrated shell through an output transmission shaft, related torque data of the speed reducer can be acquired through a first torque sensor arranged on the output transmission shaft, the second dynamometer is connected with a motor rotor shaft of the EDU assembly through a flange tool, torque data of the motor rotor shaft can be acquired through a second torque sensor arranged on the flange tool, and the acquired torque data of the speed reducer and torque data of the motor rotor shaft are processed to obtain the efficiency of the speed reducer.
Additional features and advantages of embodiments of the utility model will be set forth in the detailed description which follows.
Description of the drawings:
in order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of an exemplary test device and EDU assembly according to an embodiment of the present utility model;
FIG. 2 is a schematic cross-sectional view of an exemplary testing apparatus according to an embodiment of the present utility model;
fig. 3 is a schematic cross-sectional view of an EDU assembly as exemplary provided in an embodiment of the present utility model.
In the above figures, the list of components represented by the various numbers is as follows:
100. a testing device; 110. A tool support;
121. a left dynamometer; 122. A right dynamometer;
130. an output drive shaft; 123. A second dynamometer;
401. a motor rotor shaft; 140. A flange tool;
141. a flange shaft member; 131. A first torque sensor;
132. a second torque sensor; 200. An integrated housing;
301. a speed reducer; 111. A front end cover bracket;
112. a rear end cap bracket; 402. A motor bearing;
300. a speed reducer cavity; 500. A controller cavity;
400. a motor cavity; 403. An oil passage through hole;
302. a front end cover; 113. A first through hole;
1000. an EDU assembly; 303. And a second through hole.
The specific embodiment is as follows:
to further clarify the above and other features and advantages of the present utility model, a further description of the utility model will be rendered by reference to the appended drawings. It should be understood that the specific embodiments presented herein are for purposes of explanation to those skilled in the art and are intended to be illustrative only and not limiting.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
The general idea of the present embodiment is to provide a testing device 100 for an EDU assembly 1000 and the EDU assembly 1000, by performing a structural optimization design on the testing device 100, designing a tooling bracket 110 to clamp and fix an integrated housing 200 of the EDU assembly 1000, designing a first dynamometer inside the tooling bracket 110, wherein the first dynamometer is connected with a speed reducer 301 through an output transmission shaft 130, the output transmission shaft 130 is provided with a first torque sensor 131, and the first torque sensor 131 is used for collecting torque output by the speed reducer 301; meanwhile, a second dynamometer 123 is designed outside the tool support 110 and is used for being connected with a motor rotor shaft 401 of the EDU assembly 1000 clamped in the tool support 110 so as to provide torque for the motor rotor shaft 401, a flange tool 140 is designed between the second dynamometer 123 and the tool support 110, one end of the flange tool 140 penetrates through the tool support 110 to be connected with the motor rotor shaft 401 through a spline, the other end of the flange tool 140 is connected with the second dynamometer 123, a second torque sensor 132 is arranged on the flange tool 140 so as to collect the torque of the motor rotor shaft 401, so that the problem that when the speed reducer 301 in the EDU assembly 1000 adopting the integrated shell 200 is used for efficiency test, the integrated shell 200 cannot be applied to test of the testing device 100 in a complete state, design processing is needed for the integrated shell 200, test cost is increased, and the integrated shell 200 cannot be reused for other subsequent tests such as the motor assembly is solved.
Embodiments of the present utility model first provide a testing apparatus 100 for an EDU assembly 1000, comprising:
the tool support 110 is used for clamping the EDU assembly 1000;
the first dynamometer is arranged in the tool support 110, the side part of the first dynamometer is connected with an output transmission shaft 130, and the output transmission shaft 130 is used for outputting power to a speed reducer 301 of the EDU assembly 1000;
the second dynamometer 123 is arranged outside the tool support 110 and is used for providing torque for the motor rotor shaft 401 of the EDU assembly 1000;
the flange tool 140 is arranged between the tool support 110 and the second dynamometer 123 and is connected with the second dynamometer 123, and the flange tool 140 is provided with a flange shaft member 141 for spline connection with the motor rotor shaft 401 of the EDU assembly 1000;
the output transmission shaft 130 is provided with a first torque sensor 131, and the flange tool 140 is provided with a second torque sensor 132 for collecting test data.
In an alternative solution of this embodiment, the tool support 110 is used to clamp and fix the integrated housing 200 of the EDU assembly 1000; the first dynamometer is arranged inside the fixture to provide rotating speed for the speed reducer 301 of the EDU assembly 1000 when testing the efficiency of the speed reducer 301 of the EDU assembly 1000; the side part of the first dynamometer is connected with an output transmission shaft 130, one end of the output transmission shaft 130 is connected with the first dynamometer, and the other end of the output transmission shaft 130 is used for being connected with a speed reducer 301 of the EDU assembly 1000 so as to transmit the output rotating speed of the first dynamometer to the speed reducer 301 of the EDU assembly 1000; the output transmission shaft 130 is provided with a first torque sensor 131, when the efficiency test of the speed reducer 301 of the EDU assembly 1000 is carried out, the output rotation shaft rotates along with the speed reducer 301, and the first torque sensor 131 collects test data when the speed reducer 301 rotates; the second dynamometer 123 is designed outside the tool support 110, the flange tool 140 is arranged between the second dynamometer 123 and the tool support 110, when the speed reducer 301 of the EDU assembly 1000 is used for efficiency test, the flange shaft member 141 of the flange tool 140 is in spline connection with the motor rotor shaft 401 of the EDU assembly 1000, and meanwhile, the second dynamometer 123 is connected with the flange tool 140 so as to provide torque for the motor rotor shaft 401; the flange tool 140 is provided with a second torque sensor 132, and the second torque sensor is used for acquiring test data of the motor rotor shaft 401; the efficiency of the decelerator 301 of the EDU assembly 1000 may be obtained by processing the data collected by the first torque sensor 131 and the second torque sensor. According to the testing device 100 provided by the utility model, the integrated shell 200 of the EDU assembly 1000 can meet the requirements of testing the efficiency of the speed reducer 301 without design processing such as reduction, and the production cost and the manufacturing cost are reduced, and as the integrated shell 200 is applied to the testing of the testing device 100 in a complete state, the integrated shell 200 can also be applied to the testing of other subsequent items such as a motor assembly, and the testing cost is reduced.
Each structure is explained in detail below.
Referring to fig. 1 to 3, in an alternative solution of the present embodiment, the tooling support 110 includes a front end cover support 111 and a rear end cover support 112, the front end cover support 111 includes a vertical portion and a platform portion, the vertical portion provides support, the platform portion extends inward to clamp a front end cover 302 of the EDU assembly 1000, the inner side of the rear end cover support 112 is attached to a rear end cover of the EDU assembly 1000, and the EDU assembly 1000 is clamped and fixed by cooperating with the front end cover support 111. The design of the tooling support 110 is beneficial to the fixation of the EDU assembly 1000, so that the integrated housing 200 of the EDU assembly 1000 does not need to be subtracted when the EDU assembly 1000 is subjected to the efficiency test of the speed reducer 301.
Further, the rear end cap bracket 112 is designed with a first through hole 113, which is adapted to the flange shaft member 141, so that the flange shaft member 141 can pass through and then be connected with the motor rotor shaft 401 of the EDU assembly 1000.
In an alternative scheme of the embodiment, the rear end cover bracket 112 is of a vertical plate-shaped design, the rear end cover bracket 112 is provided with a first through hole 113 for the flange shaft member 141 to radially penetrate, the diameter of the through hole is matched with that of the flange shaft member 141, and the flange shaft member 141 penetrates through the rear end cover bracket 112 through the first through hole 113 and is in spline connection with the motor rotor shaft 401.
Further, the first dynamometer includes a left dynamometer 121 and a right dynamometer 122, and the left dynamometer 121 and the right dynamometer 122 are arranged opposite to each other to cooperate with the output transmission shaft 130 to be connected with the reducer 301 of the EDU assembly 1000.
In an alternative scheme of this embodiment, in order to facilitate connection of the reducer 301 of the EDU assembly 1000 to the testing device 100, the left dynamometer 121 is disposed inside the vertical portion of the front end cover support 111, the right dynamometer 122 is disposed horizontally and oppositely to the left dynamometer 121, the opposite sides of the left dynamometer 121 and the right dynamometer 122 are respectively connected with the output transmission shaft 130, when the reducer 301 of the EDU assembly 1000 performs efficiency testing, the reducer 301 of the EDU assembly 1000 is disposed between the left dynamometer 121 and the right dynamometer 122, the left dynamometer 121 and the right dynamometer 122 are connected with the reducer 301 through the output transmission shaft 130, so as to provide rotation speed for the reducer 301 of the EDU assembly 1000, and when the output transmission shaft 130 rotates, the first torque sensor 131 collects testing data of the reducer 301.
It will be appreciated that, since the complete structure of the integrated housing 200 is maintained, the internal oil path, the heat dissipation structure, etc. are not affected, so that the testing device 100 can test the efficiency of the speed reducer 301, and also can perform the reliability test of the speed reducer 301 at high temperature and high speed.
In an alternative of the embodiment of the present utility model, the test data includes at least one of motor speed, no-load torque, dynamometer input torque, calibrated dynamometer input torque, decelerator 301 output speed, dynamometer input power, decelerator 301 output power, and decelerator 301 efficiency. The above data may be provided by the first dynamometer, the second dynamometer 123, the first torque sensor 131, and the second torque sensor 132.
It should be noted that, in the present application, the "dynamometer" is also called a dynamometer, and is used for testing the power of an engine, and may also be used as a loading device of a gearbox, a speed reducer, and a gearbox, and is used for testing the transmission power of the gearbox, the speed reducer, and the gearbox. The hydraulic power measuring machine, the electric vortex power measuring machine and the electric power measuring machine can be divided according to different using currents. And the electric dynamometer is a device for measuring the torque output by various power machine shafts by utilizing a motor and combining the rotating speed to determine the power.
The embodiment of the utility model also provides an EDU assembly 1000, which comprises an integrated shell 200, a motor rotor shaft 401, a speed reducer 301 and a motor bearing 402, wherein the integrated shell 200 comprises a speed reducer cavity 300, a controller cavity 500 and a motor cavity 400, the speed reducer cavity 300 is arranged at one end of the motor cavity 400, and the controller cavity 500 is arranged at one side of the motor cavity 400; motor bearings 402 are disposed at both ends of the motor cavity 400 and rotatably connected to the motor rotor shaft 401; the reducer 301 is disposed in the reducer cavity 300 and connected to one end of the motor rotor shaft 401; wherein, one side of the reducer cavity 300 is provided with a second through hole 303, the second through hole 303 is used for the output transmission shaft 130 to pass through and then connect with the reducer 301, and a motor rotor shaft 401 far away from one end of the reducer 301 is used for connecting with the flange tool 140.
In an alternative scheme of the embodiment, the integrated housing 200 includes a speed reducer cavity 300, a controller cavity 500 and a motor cavity 400, the speed reducer cavity 300 is arranged at one end of the motor cavity 400, a speed reducer 301 is placed inside the speed reducer cavity 300, and the bottom of the side surface of the speed reducer cavity 300 is connected with the left dynamometer 121 and the right dynamometer 122 through an output transmission shaft 130, so that when the assembly is tested in the testing device 100, the left dynamometer 121 and the right dynamometer 122 give rotational speed to the speed reducer 301 through the output transmission shaft 130; motor bearings 402 are arranged at two ends of the motor cavity 400, the motor bearings 402 at two ends are respectively connected with a motor rotor shaft 401 in a rotating way and are supported by the motor rotor shaft 401, one end of the motor rotor shaft 401, which is close to the speed reducer cavity 300, is used for being connected with the speed reducer 301 in the speed reducer cavity 300, and one end of the motor rotor shaft 401, which is far away from the speed reducer cavity 300, is used for being connected with a flange shaft member 141 penetrating through the rear end cover bracket 112, so that the second dynamometer 123 can conveniently output torque through the flange tool 140; the controller cavity 500 is disposed at a side of the motor cavity 400 to facilitate the installation of the controller.
Further, an oil passage hole 403 is provided between the decelerator chamber 300 and the motor chamber 400 for the lubricant to pass through.
In an alternative scheme of this embodiment, an oil path through hole 403 is designed between the speed reducer cavity 300 and the motor cavity 400, so as to facilitate oil lubrication on components of the speed reducer 301 in a state of keeping the integrated housing 200 intact, so as to simulate the influence of the oil path on the speed reducer 301 and the bearing during actual use of the EDU assembly 1000, so that the test data is more accurate.
Further, a front end cover 302 is disposed at an end of the reducer housing 300 away from the motor housing 400, and the front end cover 302 is used for clamping and fixing the tool support 110.
In an alternative solution of this embodiment, the front end cover 302 is detachably connected to the end of the reducer housing 300 away from the motor housing 400, so as to facilitate better fixation of the EDU assembly 1000 when testing the efficiency of the reducer 301, and facilitate installation and detachment of the reducer 301.
Further, a rear end cover is disposed at one end of the motor cavity 400 away from the reducer cavity 300, for clamping and fixing the tool support 110.
In an alternative solution of this embodiment, the rear end cover is connected to an end of the motor cavity 400 away from the reducer cavity 300, and the rear end cover bracket 112 cooperates with the front end cover bracket 111 to fix the EDU assembly 1000, so as to facilitate the efficiency test of the reducer 301 of the EDU assembly 1000.
In a modification of the present utility model, an adapter plate is disposed at one end of the motor cavity 400 away from the reducer cavity 300, for clamping and fixing the rear end cover bracket 112 of the tooling bracket 110; because the motor rear end cover of the EDU assembly 1000 is complicated to install, the structure of the adapter plate can be designed, and one end of the motor cavity 400 far away from the speed reducer cavity 300 is attached to fix one end of the motor cavity 400 far away from the speed reducer cavity 300 to the rear end cover bracket 112.
It can be appreciated that when the testing device 100 performs the efficiency test of the reducer 301 of the EDU assembly 1000, the stator and rotor components do not need to be arranged in the motor cavity 400 of the EDU assembly 1000, and the testing requirements can be met only by installing the motor rotor shaft 401 and the motor bearing 402, so that the testing time is reduced and the testing efficiency is improved.
In an alternative scheme of the embodiment of the utility model, when the EDU assembly 1000 performs the efficiency test of the speed reducer 301, the EDU assembly 1000 is fixed on the tool support 110 of the testing device 100, the flange shaft member 141 of the flange tool 140 is in spline connection with the motor rotor shaft 401, after the second dynamometer 123 is connected with the flange tool 140, the test is sequentially performed according to the rotation speed requirement of the motor from low to high, the no-load loss of the motor rotor shaft 401 is obtained, namely, the torque value of the motor rotor shaft 401 when the speed reducer 301 is not installed on the EDU assembly 1000, the speed reducer 301 is normally installed after the no-load loss of the motor rotor shaft 401 is obtained, lubricating oil is further added into the integrated shell 200 to lubricate the motor bearing 402, the motor rotor shaft 401 and the speed reducer 301, the efficiency test of the speed reducer 301 is performed according to the test requirement, the torque data collected by the first torque sensor 131 at the speed reducer 301 is obtained through adjusting different input torque values, and the efficiency of the speed reducer 301 can be calculated by data processing.
It should be understood by those skilled in the art that if a testing apparatus 100 for an EDU assembly 1000 and an EDU assembly 1000 provided by the embodiments of the present utility model are combined and replaced by fusing, simply changing, mutually changing, etc., all or part of the sub-modules involved in the testing apparatus and the EDU assembly 1000, such as placing and moving the components; or the products formed by the two are integrally arranged; or a removable design; it is within the scope of the present utility model to replace the corresponding components of the present utility model with devices/apparatuses/systems that may be combined to form a device/apparatus/system having a specific function.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
In summary, according to the testing device 100 for the EDU assembly 1000 and the EDU assembly 1000 provided by the application, through the structural design of the testing device 100, the tool support 110 fixes the integrated housing 200 of the EDU assembly 1000, so that the integrated housing 200 in the EDU assembly 1000 can keep a complete state to test the single body of the speed reducer 301, compared with the prior art, the integrated housing 200 does not need to be independently designed and processed to place the housing of the speed reducer 301 assembly, and meanwhile, the integrated housing 200 does not need to be subjected to subtractive processing, thereby reducing the manufacturing cost and the production cost; the first dynamometer is connected with a speed reducer 301 positioned in the integrated housing 200 through an output transmission shaft 130, related torque data of the speed reducer 301 can be collected through a first torque sensor 131 arranged on the output transmission shaft 130, the second dynamometer 123 is connected with a motor rotor shaft 401 of the EDU assembly 1000 through a flange tool 140, torque data of the motor rotor shaft 401 can be collected through a second torque sensor 132 arranged on the flange tool 140, and the speed reducer 301 torque data collected by the first torque sensor 131 and the related data provided by the first dynamometer and the second dynamometer 123 can be processed to obtain the efficiency of the speed reducer 301.
While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.
Claims (10)
1. A test device for an EDU assembly, comprising:
the tool support is used for clamping the EDU assembly;
the first dynamometer is arranged inside the tool support, the side part of the first dynamometer is connected with an output transmission shaft, and the output transmission shaft is used for outputting power to a speed reducer of the EDU assembly;
the second dynamometer is arranged outside the tool support and is used for providing torque for a motor rotor shaft of the EDU assembly;
the flange tool is arranged between the tool support and the second dynamometer and is connected with the second dynamometer, and is provided with a flange shaft piece for spline connection with a motor rotor shaft of the EDU assembly;
the flange tool is provided with a first torque sensor, and a second torque sensor is arranged on the flange tool and used for collecting test data.
2. The testing device of claim 1, wherein the tooling support comprises a front end cover support and a rear end cover support, the front end cover support comprises a vertical portion and a platform portion, the vertical portion provides support, the platform portion extends inwards to clamp a front end cover of the EDU assembly, the inner side of the rear end cover support is attached to a rear end cover of the EDU assembly, and the front end cover support is matched to clamp and fix the EDU assembly.
3. The test device of claim 2, wherein the rear end cap bracket is provided with a first through hole adapted to the flange shaft for the shaft to pass through to connect the motor rotor shaft of the EDU assembly.
4. The test device of claim 1, wherein the first dynamometer includes a left dynamometer and a right dynamometer, the left dynamometer and the right dynamometer being arranged opposite to each other to cooperate with the output drive shaft to simultaneously connect with a decelerator of the EDU assembly.
5. The test device of claim 1, wherein the test data comprises at least one of motor speed, no-load torque, dynamometer input torque, calibrated dynamometer input torque, decelerator output speed, dynamometer input power, decelerator output power, and decelerator efficiency.
6. The utility model provides an EDU assembly, includes integrated casing, motor rotor axle, reduction gear, motor bearing, its characterized in that:
the integrated shell comprises a speed reducer cavity, a controller cavity and a motor cavity, wherein the speed reducer cavity is arranged at one end of the motor cavity, and the controller cavity is arranged at one side of the motor cavity;
the motor bearings are arranged at two ends of the motor cavity and are rotationally connected with the motor rotor shaft;
the speed reducer is arranged in the speed reducer cavity and is connected with one end of the motor rotor shaft;
one side of the speed reducer cavity is provided with a second through hole, the second through hole is used for connecting the output transmission shaft with the speed reducer, and a motor rotor shaft far away from one end of the speed reducer is used for being connected with a flange tool.
7. The EDU assembly of claim 6, wherein oil passage holes are provided between the speed reducer cavity and the motor cavity for the passage of lubricating oil.
8. The EDU assembly of claim 6 wherein a front end cap is disposed at an end of the decelerator cavity remote from the motor cavity, the front end cap being adapted for clamping and securing a tooling support.
9. The EDU assembly of claim 8 wherein a rear end cap is disposed at an end of the motor cavity remote from the speed reducer cavity for clamping and securing a tooling bracket.
10. The EDU assembly of claim 8, wherein an adapter plate is disposed at an end of the motor cavity remote from the speed reducer cavity for clamping and securing a tooling bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222971066.8U CN219301951U (en) | 2022-11-07 | 2022-11-07 | Testing device for EDU assembly and EDU assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222971066.8U CN219301951U (en) | 2022-11-07 | 2022-11-07 | Testing device for EDU assembly and EDU assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219301951U true CN219301951U (en) | 2023-07-04 |
Family
ID=86954709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222971066.8U Active CN219301951U (en) | 2022-11-07 | 2022-11-07 | Testing device for EDU assembly and EDU assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219301951U (en) |
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2022
- 2022-11-07 CN CN202222971066.8U patent/CN219301951U/en active Active
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