A general tool for testing wheel hub motor

Abstract

The utility model belongs to test tool technical field discloses a general tool for wheel hub motor test, including the inner spline pipe for and wheel hub motor's output end connection, the adapter holder for and wheel hub motor's fixed end connection, the seat board for and test bench machine body connection, the inner spline pipe is connected with outer spline shaft, and outer spline shaft is used for and test bench's power test mouth connection, the adapter holder is connected outer protective housing away from wheel hub motor one end, the seat board connects a plurality of pin for positioning, and outer protective housing and pin cooperate and position, and outer protective housing is connected with seat board. The utility model possesses general property, can be adapted to different models wheel hub motor, satisfies the test demand of different wheel hub motor, has improved test efficiency, and has reduced test cost, has shortened test development period.

Description

Technical Field

[0001] This utility model belongs to the field of testing tooling technology, specifically relating to a general tooling for testing hub motors. Background Technology

[0002] In-wheel motors integrate a vehicle's powertrain, transmission, and braking systems. They offer advantages such as simplified transmission components and vehicle structure, and the ability to achieve multiple drive modes. However, they also suffer from disadvantages such as heavy weight, high cost, and low efficiency. Currently, the in-wheel motor industry is further improving its technology. With the development of in-wheel motor technology, the demand for high-torque, high-speed testing of in-wheel motors is increasing. In-wheel motors have a simple structure, with one end fixed and the other outputting power.

[0003] Therefore, based on the above testing requirements, a universal tooling for testing hub motors is provided to meet the testing needs of different hub motors. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a universal tooling for testing hub motors.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A general-purpose tooling for testing hub motors includes an internal spline tube for connecting to the output end of the hub motor, an adapter for connecting to the fixed end of the hub motor, and a base plate for connecting to the test bench body.

[0007] The inner spline tube is connected to the outer spline shaft, and the outer spline shaft is used to connect to the power test port of the test bench.

[0008] The end of the adapter that is furthest from the hub motor is connected to the outer protective shell;

[0009] The base plate is connected to several pins for positioning, the outer protective shell cooperates with the pins for positioning, and the outer protective shell is connected to the base plate.

[0010] The process of testing and installing a hub motor using the universal tooling of this utility model is as follows: the base plate and the external spline shaft are installed on the test bench. Specifically, the external spline shaft is connected to the power test port of the test bench. The external spline shaft receives the rotational power from the hub motor and rotates together with the output end of the hub motor, and transmits this rotational motion to the test bench for testing the speed and torque of the hub motor. The base plate is fixed to the body of the test bench and is connected to several pins for positioning the outer protective shell.

[0011] The fixed end of the hub motor is connected to the outer protective shell via an adapter, and the output end of the hub motor is connected to the inner spline tube. When the outer protective shell is inserted with a pin, the hub motor can be positioned indirectly. During the process of inserting the pin into the outer protective shell, the inner spline tube is also inserted and engaged with the outer spline shaft. Under the action of the pin, the engagement position is guaranteed. Then, the outer protective shell is fixed to the base plate, thus realizing the fixed installation of the hub motor on the test bench.

[0012] In general, this universal tooling can be divided into two parts. The first part is used to fix the hub motor, which is achieved by the adapter, outer protective shell, base plate and pin. The second part is used to transmit the power of the hub motor to the test bench. The output end of the hub motor is connected to the inner spline tube, and the inner spline tube is connected to the outer spline shaft. The torque and speed are transmitted to the test bench by the outer spline shaft.

[0013] When the hub motor models are different, the entire universal tooling only requires replacing the internal spline tube and the adapter. This is because the output and fixed ends of different hub motors are different, so only these two parts need to be replaced.

[0014] The beneficial effects of this utility model are: it is versatile and can be adapted to different models of hub motors, meeting the testing needs of different hub motors, improving testing efficiency, reducing testing costs, and shortening the testing and development cycle. Attached Figure Description

[0015] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0016] Figure 1 This is a first structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the second structure of an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the third structure of an embodiment of the present utility model;

[0019] Figure 4 This is a cross-sectional view of an embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of the first internal structure of an embodiment of the present utility model;

[0021] Figure 6 This is a schematic diagram of the second internal structure of an embodiment of the present utility model;

[0022] Figure 7 This is a schematic diagram of the structure of the external spline shaft in an embodiment of this utility model;

[0023] Figure 8This is a schematic diagram of the internal spline tube in an embodiment of the present invention;

[0024] Figure 9 This is a schematic diagram of the base plate in an embodiment of the present invention;

[0025] Figure 10 This is a schematic diagram of the adapter in an embodiment of the present invention;

[0026] Figure 11 This is a schematic diagram of the structure of the outer protective shell in an embodiment of this utility model;

[0027] Figure 12 This is a cross-sectional view of the outer protective shell in an embodiment of this utility model;

[0028] Figure 13 This is a schematic diagram of the end cap structure in an embodiment of the present utility model;

[0029] The symbols for the main components are explained below:

[0030] DJ, in-wheel motor;

[0031] S, Output terminal;

[0032] G. Fixed end;

[0033] 1. External spline shaft; 11. Shaft seat; 12. Spline shaft body; 13. First through hole;

[0034] 2. Seat plate; 21. Third fixing hole; 22. Second fixing hole; 23. Threaded hole;

[0035] 3. Outer protective shell; 31. Protective ring; 311. Weight reduction hole; 312. Fifth through hole; 32. End cap; 321. Positioning hole; 322. Lead-out hole; 323. Fourth through hole; 324. Third through hole; 33. Inner ring; 331. Pin hole; 332. Sixth through hole;

[0036] 5. Adapter; 51. Seat body; 52. Second ring edge; 53. Third ring edge;

[0037] 6. Pins;

[0038] 7. Internal spline tube; 71. First ring edge; 72. Second through hole. Detailed Implementation

[0039] The technical solution of this utility model will be described in detail below with reference to specific embodiments and accompanying drawings. The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model; these descriptions are explanatory and exemplary, and should not be construed as limiting the implementation methods or the scope of protection of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein. Example 1

[0040] like Figure 1-6 As shown, this embodiment provides a general-purpose tooling for testing hub motors, including an internal spline tube 7 for connecting to the output end S of the hub motor DJ, an adapter 5 for connecting to the fixed end G of the hub motor DJ, and a base plate 2 for connecting to the test bench body.

[0041] The inner spline tube 7 is connected to the outer spline shaft 1, which is used to connect to the power test port of the test bench.

[0042] The end of the adapter 5 furthest from the hub motor DJ is connected to the outer protective shell 3;

[0043] The base plate 2 is connected to several pins 6 for positioning. The outer protective shell 3 cooperates with the pins 6 for positioning and is connected to the base plate 2.

[0044] The process of testing and installing the universal tooling of this utility model for a hub motor DJ is as follows: the base plate 2 and the external spline shaft 1 are installed on the test bench. Specifically, the external spline shaft 1 is connected to the power test port of the test bench. The external spline shaft 1 receives the rotational power from the hub motor DJ and rotates together with the output end S of the hub motor DJ. It transmits this rotational motion to the test bench to test the speed and torque of the hub motor DJ. The base plate 2 is fixed to the body of the test bench. The base plate 2 is connected to several pins 6 for positioning the outer protective shell 3.

[0045] The fixed end G of the hub motor DJ is connected to the outer protective shell 3 through the adapter 5. The output end S of the hub motor DJ is connected to the inner spline tube 7. When the outer protective shell 3 is inserted into the pin 6, the hub motor DJ can be positioned indirectly. During the process of inserting the pin 6 into the outer protective shell 3, the inner spline tube 7 is also inserted and engaged with the outer spline shaft 1. Under the action of the pin 6, the engagement position is guaranteed. Then, the outer protective shell 3 is fixed to the base plate 2, and the hub motor DJ can be fixedly installed on the test bench.

[0046] In general, this universal tooling can be divided into two parts. The first part is used to fix the hub motor DJ, which is achieved by the adapter 5, the outer protective shell 3, the base plate 2, and the pin 6. The second part is used to transmit the power of the hub motor DJ to the test bench. The output end S of the hub motor DJ is connected to the inner spline tube 7, and the inner spline tube 7 is then connected to the outer spline shaft 1. The outer spline shaft 1 transmits the torque and speed to the test bench.

[0047] When the model of the hub motor DJ is different, the entire universal tooling only needs to replace the inner spline tube 7 and the adapter 5. This is because the output end S and the fixed end G of different hub motor DJs are different. Therefore, only these two parts need to be replaced. Example 2

[0048] like Figure 4 , 7 As shown in Figure 8, this embodiment provides a general tooling for testing hub motors. The difference from Embodiment 1 is that the outer spline shaft 1 is provided with a spline shaft body 12 and a bearing seat 11 located at one end of the spline shaft body 12. The bearing seat 11 is provided with a first through hole 13 for installation. The outer circumference of the inner spline tube 7 is provided with a first ring edge 71 for installation. The first ring edge 71 is provided with a second through hole 72 for cooperating with the output end S.

[0049] In this embodiment, the bearing seat 11 is used to connect with the test bench. The first through hole 13 on the bearing seat 11 can be used to fix the external spline shaft 1 on the test bench by locking screws. The spline shaft body 12 is used to cooperate with the internal spline tube 7. The first ring edge 71 on the internal spline tube 7 is provided with a second through hole 72. The second through hole 72 is used to cooperate with the output end S of the hub motor DJ. The output end S of the hub motor DJ has several threaded posts. These threaded posts were originally used to cooperate with car wheels for installing wheels. In this invention, the threaded posts are used to install the internal spline tube 7. After these threaded posts pass through the second through hole 72, nuts are locked in to achieve the installation and fixation of the internal spline tube 7. Example 3

[0050] like Figure 4-6As shown in Figures 9-13, this embodiment provides a general-purpose tooling for testing hub motors. The difference from Embodiment 1 is that the adapter 5 has a hollow body 51, a second ring edge 52 at one end of the body 51, and a third ring edge 53 at the other end of the body 51. Both the second ring edge 52 and the third ring edge 53 have first fixing holes. The outer protective shell 3 includes a protective ring 31, an end cap 32 at one end of the protective ring 31, and an inner ring 33 at the other end of the protective ring 31. The end cap 32 has a positioning hole 321 at its center. The surface of the third ring edge 53 has a stop for engaging with the positioning hole 321. The end cap 32 has a third through hole 324 surrounding the positioning hole 321, and an outlet hole 322. 32 is also provided with several fourth through holes 323; the circumference of the protective ring 31 is provided with several weight-reducing holes 311, the protective ring 31 is provided with several fifth through holes 312, the fifth through holes 312 are parallel to the axis of the protective ring 31, the inner ring 33 is provided with several sixth through holes 332, the inner ring 33 is provided with pin holes 331 for cooperating with pins 6, the number and position of the fifth through holes 312, the sixth through holes 332 and the fourth through holes 323 correspond to each other; the base plate 2 is provided with a second fixing hole 22 for fixing itself, a third fixing hole 21 for fixing pins 6 and a threaded hole 23 for fixing the outer protective shell 3, the outer protective shell 3 and the base plate 2 are connected by long bolts, the threads of the long bolts are adapted to the threaded holes 23.

[0051] In this embodiment, the adapter 5 is used to connect the fixed end G of the hub motor DJ to the outer protective shell 3. The second ring edge 52 and the third ring edge 53 at both ends of the adapter 5 are used to connect to the hub motor DJ and the outer protective shell 3, respectively. The first fixing hole on the second ring edge 52 and the third ring edge 53 is used for fixing. The end cover 32 in the outer protective shell 3 is locked by screws after the third through hole 324 and the first fixing hole are aligned and fitted. The positioning hole 321 on the end cover 32 fits with the stop on the third ring edge 53 to determine the installation position of the end cover 32. The positioning hole 321 also serves to facilitate wiring and lead out the external wiring of the hub motor DJ. The hollow design of the body 51 is also for the convenience of wiring. The additional lead-out hole 322 on the end cover 32 is for leading out the three-phase wire and water pipe of the hub motor DJ.

[0052] The fourth through hole 323, the fifth through hole 312, and the sixth through hole 332 on the protective ring 31, the end cap 32, and the inner ring 33 are used to pass through long bolts. The long bolts are locked into the threaded holes 23 on the seat plate 2 to fix the outer protective shell 3.

[0053] The base plate 2 is fixed by locking bolts into the second fixing hole 22, and the third fixing hole 21 is used to fix the pin 6. The pin 6 is inserted into the pin hole 331, which can realize the installation and positioning of the outer protective shell 3.

[0054] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A universal tooling for testing hub motors, characterized in that: Includes an inner spline tube (7) for connecting to the output end (S) of the hub motor (DJ), an adapter (5) for connecting to the fixed end (G) of the hub motor (DJ), and a base plate (2) for connecting to the test bench body. The inner spline tube (7) is connected to the outer spline shaft (1), and the outer spline shaft (1) is used to connect to the power test port of the test bench; The adapter (5) is connected to the outer protective shell (3) at the end away from the hub motor (DJ). The base plate (2) is connected to several pins (6) for positioning. The outer protective shell (3) is positioned in cooperation with the pins (6). The outer protective shell (3) is connected to the base plate (2).

2. The universal tooling for testing an in-wheel motor according to claim 1, characterized by: The external spline shaft (1) is provided with a spline shaft body (12) and a bearing seat (11) located at one end of the spline shaft body (12). The bearing seat (11) is provided with a first through hole (13) for installation.

3. The universal tooling for testing hub motors according to claim 1, characterized in that: The inner spline tube (7) has a first ring edge (71) for installation on its outer circumference, and the first ring edge (71) has a second through hole (72) for cooperating with the output end (S).

4. The universal tooling for testing hub motors according to claim 1, characterized in that: The adapter (5) has a hollow body (51), a second ring edge (52) at one end of the body (51), and a third ring edge (53) at the other end of the body (51). The second ring edge (52) and the third ring edge (53) are both provided with a first fixing hole.

5. A universal tooling for testing hub motors according to claim 4, characterized in that: The outer protective shell (3) includes a protective ring (31), an end cap (32) located at one end of the protective ring (31), and an inner ring (33) located at the other end of the protective ring (31).

6. A universal tooling for testing hub motors according to claim 5, characterized in that: The end cap (32) has a positioning hole (321) at its center. The surface of the third ring edge (53) has a stop for cooperating with the positioning hole (321). The end cap (32) has a third through hole (324) around the positioning hole (321). The end cap (32) has an outlet hole (322). The end cap (32) also has several fourth through holes (323).

7. A universal tooling for testing hub motors according to claim 6, characterized in that: The protective ring (31) has several weight-reducing holes (311) around its circumference. The protective ring (31) has several fifth through holes (312). The fifth through holes (312) are parallel to the axis of the protective ring (31). The inner ring (33) has several sixth through holes (332). The inner ring (33) has pin holes (331) for cooperating with pins (6). The number and position of the fifth through holes (312), sixth through holes (332) and fourth through holes (323) correspond to each other.

8. A universal tooling for testing hub motors according to claim 7, characterized in that: The base plate (2) is provided with a second fixing hole (22) for fixing itself, a third fixing hole (21) for fixing the pin (6) and a threaded hole (23) for fixing the outer protective shell (3). The outer protective shell (3) and the base plate (2) are connected by a long bolt, and the thread of the long bolt is adapted to the threaded hole (23).

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