CN209820772U - New energy automobile driving motor system testing arrangement - Google Patents
New energy automobile driving motor system testing arrangement Download PDFInfo
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- CN209820772U CN209820772U CN201921023160.2U CN201921023160U CN209820772U CN 209820772 U CN209820772 U CN 209820772U CN 201921023160 U CN201921023160 U CN 201921023160U CN 209820772 U CN209820772 U CN 209820772U
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Abstract
The utility model relates to the field of motor testing, in particular to a new energy automobile driving motor system testing device, which comprises a base, a detection motor, a detection device and an axle box which are arranged on the base in sequence, and a variable load device, wherein the detection motor is connected with the driving motor through a rotating shaft, the variable load device is arranged on the driving motor, the axle box comprises a barrel body, an end cover, a sealing cover and a box body, the rotating shaft penetrates through the end cover and the sealing cover, the side wall of the barrel body is provided with a second heat dissipation hole, the side wall of the box body is provided with a first heat dissipation hole which is communicated with the first heat dissipation hole, the end cover can be detachably connected with the barrel body and the sealing cover, a first bearing is arranged between the rotating shaft and the end cover, and a second bearing is arranged between the rotating shaft and the sealing cover, the coaxiality can be prevented from being influenced by the deformation of the rotating shaft, and the detection accuracy is further improved.
Description
Technical Field
The utility model relates to a motor test technical field especially relates to a new energy automobile driving motor system testing arrangement.
Background
The motor is the most main driving element in the electric automobile, the running performance and the running efficiency of a motor system consisting of the motor and a driving part of the motor are the core of attention of a user, and the market competitiveness and the value of the motor system are determined at the same time. However, since the rotating shaft between the detection motor and the driving motor is long, the rotating shaft is easily deformed to affect the coaxiality, and further affect the detection accuracy, and when the rotating shaft is broken, the rotating shaft is easily broken out, thereby causing damage to an operator.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the connecting section between the detection motor and the driving motor that exists among the prior art produces easily and warp and influence the axiality, and then influences the shortcoming of the degree of accuracy of monitoring, and the new energy automobile driving motor system testing arrangement who provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a new energy automobile driving motor system testing device is used for detecting a driving motor and comprises a base, a detection motor, a detection device and an axle box which are sequentially arranged on the base, and a variable load device, wherein the detection motor is connected with the driving motor through a rotating shaft, the variable load device is arranged on the driving motor, the axle box comprises a cylinder body, an end cover and a sealing cover which are arranged at the end part of the cylinder body, and a box body sleeved outside the cylinder body, the rotating shaft penetrates through the end cover and the sealing cover, a second heat dissipation hole is formed in the side wall of the cylinder body, the side wall of the box body is provided with a first heat dissipation hole, the second heat dissipation hole is communicated with the first heat dissipation hole, the end cover, the barrel and the sealing cover are detachably connected, a first bearing is arranged between the rotating shaft and the end cover, and a second bearing is arranged between the rotating shaft and the sealing cover.
Preferably, the middle part of the cylinder body is provided with a first through hole, the end cover is inserted into the first through hole and is abutted against the inner wall of the first through hole, and the cylinder body and the end cover are fixed through screws.
Preferably, a second through hole is formed in the middle of the end cover, the sealing cover is inserted into the second through hole and abuts against the inner wall of the second through hole, and the end cover and the sealing cover are fixed through screws.
Preferably, the first heat dissipation holes are provided with a plurality of first heat dissipation holes which are uniformly distributed.
Preferably, the second heat dissipation hole is provided with a plurality of second heat dissipation holes, and the plurality of second heat dissipation holes are annularly arranged along the radial direction of the cylinder.
Preferably, the output end of the detection motor is connected with one end of the connecting shaft through a first coupler, one end of the connecting shaft is connected with one end of the rotating shaft through a second coupler, and one end of the rotating shaft is connected with the output end of the driving motor through a third coupler.
Preferably, the detection device comprises a support seat fixed on the base and a sensor arranged on the support seat.
Preferably, the sensors include a torque sensor and a rotational speed sensor.
The utility model has the advantages that:
the pivot of connecting detection motor and driving motor wears to establish in the axle box on the top of base, through the first bearing in the end cover in the axle box and the second bearing in the closing cap, it is right the pivot plays the supporting role, can prevent that the pivot from warping and influencing the axiality, and then has improved the degree of accuracy that detects, and simultaneously, first louvre and second louvre can rotate the heat that the in-process produced with the pivot and distribute away, avoid the pivot to take place to warp because of high temperature. In addition, the end cover and the sealing cover can be replaced independently, so that the maintenance is convenient, the resource waste is reduced, the cost is saved, and the use is safe.
Drawings
Fig. 1 is a perspective view of a new energy automobile driving motor system testing device (in a state of having installed a driving motor) provided by the present invention;
fig. 2 is a front view of the new energy vehicle driving motor system testing device provided by the utility model;
fig. 3 is a top view of the new energy vehicle driving motor system testing device provided by the present invention;
FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;
fig. 5 is a partially enlarged view of B in fig. 4.
In the figure: the detection device comprises a base 1, a detection motor 2, a detection device 3, a sensor 31, a support seat 32, an axle box 4, a box 41, a first heat dissipation hole 411, a mounting hole 412, a cylinder 42, a second heat dissipation hole 421, a first through hole 422, a first threaded hole 423, an end cover 43, a first counter sink 431, a second through hole 432, a second threaded hole 433, a sealing cover 44, a second counter sink hole 441, a third through hole 442, a driving motor 5, a first coupling 6, a connecting shaft 7, a second coupling 8, a rotating shaft 9, a variable load device 10, a first bearing 11, a second bearing 12 and a third coupling 13.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-3, the testing device for the driving motor system of the new energy automobile is used for detecting a driving motor 5, and comprises a base 1, a detecting motor 2, a detecting device 3, an axle box 4 and a variable load device 10, wherein the detecting motor 2, the detecting device 3 and the axle box 4 are sequentially arranged on the base 1, the detecting motor 2 is connected with the driving motor 5 through a rotating shaft 9, and the variable load device 10 is arranged on the driving motor 5.
The detection motor 2 is specifically a servo motor, the output end of the detection motor 2 is connected with the output end of the driving motor 5, the power of the detection motor 2 can be transmitted to the driving motor 5, and the driving motor 5 can work at different rotating speeds. Specifically, the output end of the detection motor 2 is connected with one end of a connecting shaft 7 through a first coupler 6, the connecting shaft 7 is far away from one end of the first coupler 6 and one end of a rotating shaft 9 through a second coupler 8, and one end of the rotating shaft 9 far away from the second coupler 8 is connected with the output end of the driving motor 5 through a third coupler 13 (please refer to fig. 5). The variable load device 10 can be a magnetic powder brake or other devices capable of providing different braking torques to the driving motor 5, and different braking torques are provided to the driving motor 5 by changing the current of an input exciting coil of the magnetic powder brake, so that the load working conditions with different sizes are simulated.
Detection device 3 is including fixing supporting seat 32 on the base 1 is in with the setting sensor 31 on the supporting seat 32, sensor 31 includes torque sensor and speed sensor, torque sensor is used for measuring the moment of torsion of the output of detection motor 2, speed sensor is used for measuring the rotational speed of the output of detection motor 2.
Referring to fig. 1, and fig. 4-5, the axle housing 4 includes a housing 41, a cylinder 42, and an end cover 43 and a cover 44 disposed at ends of the cylinder 42. It should be noted that there are two end caps 43 and two end caps 44, one end cap 43 and one end cap 44 are disposed at one end of the cylinder 42, and the other end cap 43 and the other end cap 44 are disposed at the other end of the cylinder 42.
The case 41 is fixedly connected to the base 1, a first heat dissipation hole 411 is formed in the case 41, the first heat dissipation hole 41 has a plurality of first heat dissipation holes 411, and the plurality of first heat dissipation holes 411 are uniformly distributed. The middle of the case 41 is provided with a mounting hole 412.
The cylinder 42 is fixed in the mounting hole 412. The side surface of the cylinder 42 is provided with a second heat dissipation hole 421, specifically, the second heat dissipation hole 421 is arranged along the radial direction of the cylinder 42, the second heat dissipation hole 421 has a plurality of holes, and the plurality of holes 421 are arranged in an annular structure. The middle part of the cylinder 42 is provided with a first through hole 422, and both ends of the cylinder 42 are provided with first threaded holes 423.
The second heat dissipation hole 421 is communicated with the inner cavity of the cylinder 42, so that heat generated in the rotation process of the rotating shaft 9 can be dissipated between the cylinder 42 and the box 41 through the second heat dissipation hole 421, and the first heat dissipation hole 411 is communicated with the inner cavity of the box 41, so that heat can be further dissipated to the outside of the box 41 through the first heat dissipation hole 411.
The barrel 42 and the box 41 form a double-layer structure, so that the damage to an operator caused by the fracture and the collapse of the rotating shaft 9 after deformation is avoided.
The end cap 43 is inserted into the first through hole 422 and abuts against the inner wall of the first through hole 422. A first counter bore 431 is formed in the end cover 43 corresponding to the first threaded hole 423, and a first screw (not shown) is correspondingly connected in the first counter bore 431 and the first threaded hole 423, so that the end cover 43 and the cylinder 42 are fixed. The pivot 9 rotates to be set up the middle part of end cover 43, it is specific, the mid-mounting of end cover 43 has first bearing 11, the middle part of end cover 43 is provided with second through-hole 432, first bearing 11's outer lane with first through-hole 422 interference fit, first bearing 11's inner circle with pivot 9 interference fit. And second threaded holes 433 are formed in two ends of the end cover 43.
The cover 44 is inserted into the second through hole 432 and abuts against the inner wall of the second through hole 432. A second countersunk hole 441 is formed in the cover 44 corresponding to the second threaded hole 433, and second screws (not shown) are correspondingly connected in the second countersunk hole 441 and the second threaded hole 433, so that the cover 44 and the end cap 43 are fixed. The pivot 9 rotates to be set up the middle part of closing cap 44, the mid-mounting of closing cap 44 has second bearing 12, and is specific, the middle part of closing cap 44 is provided with third through hole 442, the outer lane of second bearing 12 with third through hole 442 interference fit, the inner circle of second bearing 12 with pivot 9 interference fit.
It should be noted that, under the action of the variable load device 10, a certain resistance is applied to the rotating shaft 9 during the rotation process, so that the rotating shaft 9 is easily deformed and damages the contact portion between the rotating shaft 9 and the end cover 43 and the contact portion between the rotating shaft 9 and the cover 44, especially the first bearing 11 and the second bearing 12. The utility model provides a barrel 42 and end cover 43, end cover 43 and closing cap 44 between all can dismantle fixedly, can carry out solitary change to the damage part, practiced thrift the cost.
In this embodiment, when testing the driving motor 5, at first connect the output end of the driving motor 5 with the rotating shaft 9 through the third coupler 13, after ensuring the coaxiality of the output end of the driving motor 5 and the rotating shaft 9, start the detection motor 2, adjust the rotating speed of the detection motor 2, simulate the load working conditions of different sizes by using the variable load device 10, and obtain the torque and the rotating speed of the driving motor 5 through the measurement of the torque sensor 31 and the rotating speed sensor 31, thereby evaluating the mechanical performance of the driving motor 5.
In the above detection process, since the axle box 4 is disposed on the base 1, the first bearing 11 in the end cover 43 and the second bearing 12 in the sealing cover 44 on the axle box 4 support the rotating shaft 9 passing through the axle box 4, so as to prevent the rotating shaft 9 from deforming and affecting the coaxiality, thereby improving the detection accuracy.
In addition, the axle box 4 has a double-layer structure of the box body 41 and the cylinder body 42, so that the damage to the operator caused by the collapse of the rotating shaft 9 due to the breakage of overload and other reasons can be avoided, and the safety is higher. In the detection process, the first heat dissipation hole 411 and the second heat dissipation hole 421 can dissipate the heat generated by the rotation of the rotating shaft 9, so as to prevent the rotating shaft 9 from deforming due to high temperature. The cylinder 42 and the end cover 43, the end cover 43 and the sealing cover 44 can be detached and fixed, the first bearing 11 in the end cover 43 and the second bearing 12 in the sealing cover 44 can be replaced independently, maintenance is facilitated, resource waste is reduced, and cost is saved.
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 (8)
1. A new energy automobile driving motor system testing device is used for detecting a driving motor and is characterized by comprising a base, a detection motor, a detection device, an axle box and a variable load device, wherein the detection motor, the detection device and the axle box are sequentially arranged on the base, the detection motor is connected with the driving motor through a rotating shaft, the variable load device is arranged on the driving motor, the axle box comprises a barrel, an end cover and a sealing cover which are arranged at the end part of the barrel, and a box body which is sleeved outside the barrel, the rotating shaft penetrates through the end cover and the sealing cover, second heat dissipation holes are formed in the side wall of the barrel, first heat dissipation holes are formed in the side wall of the box body and communicated with the first heat dissipation holes, the end cover can be detachably connected with the barrel and the sealing cover, and a first bearing is arranged between the rotating shaft and the end cover, and a second bearing is arranged between the rotating shaft and the sealing cover.
2. The new energy automobile driving motor system testing device according to claim 1, wherein a first through hole is formed in the middle of the cylinder, the end cover is inserted into the first through hole and abuts against the inner wall of the first through hole, and the cylinder and the end cover are fixed through screws.
3. The new energy automobile driving motor system testing device according to claim 1, wherein a second through hole is formed in the middle of the end cover, the sealing cover is inserted into the second through hole and abuts against the inner wall of the second through hole, and the end cover and the sealing cover are fixed through screws.
4. The device for testing the driving motor system of the new energy automobile as claimed in claim 1, wherein the first heat dissipation holes are provided in plurality and are uniformly distributed.
5. The new energy automobile driving motor system testing device according to claim 1, wherein the second heat dissipation holes are multiple and are annularly arranged along a radial direction of the cylinder.
6. The new energy automobile driving motor system testing device according to claim 1, wherein an output end of the detection motor is connected with one end of a connecting shaft through a first coupler, one end of the connecting shaft is connected with one end of the rotating shaft through a second coupler, and one end of the rotating shaft is connected with an output end of the driving motor through a third coupler.
7. The testing device for the driving motor system of the new energy automobile as claimed in claim 1, wherein the detecting device comprises a supporting base fixed on the base and a sensor arranged on the supporting base.
8. The new energy automobile driving motor system testing device according to claim 7, wherein the sensors comprise a torque sensor and a rotating speed sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921023160.2U CN209820772U (en) | 2019-07-02 | 2019-07-02 | New energy automobile driving motor system testing arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921023160.2U CN209820772U (en) | 2019-07-02 | 2019-07-02 | New energy automobile driving motor system testing arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209820772U true CN209820772U (en) | 2019-12-20 |
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ID=68885069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921023160.2U Active CN209820772U (en) | 2019-07-02 | 2019-07-02 | New energy automobile driving motor system testing arrangement |
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| Country | Link |
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| CN (1) | CN209820772U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203948A (en) * | 2021-03-18 | 2021-08-03 | 江苏华源防爆电机有限公司 | Performance detection device for hub motor |
| CN116754197A (en) * | 2023-06-13 | 2023-09-15 | 小米汽车科技有限公司 | Motor rotor's test system |
-
2019
- 2019-07-02 CN CN201921023160.2U patent/CN209820772U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203948A (en) * | 2021-03-18 | 2021-08-03 | 江苏华源防爆电机有限公司 | Performance detection device for hub motor |
| CN116754197A (en) * | 2023-06-13 | 2023-09-15 | 小米汽车科技有限公司 | Motor rotor's test system |
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