Motor loading test rotary table

Abstract

The utility model relates to a motor loading test rotary table which comprises a base and a driving mechanism, the driving mechanism is connected with a platform used for increasing load objects and installing a sensor, so that the platform can rotate around at least a first rotating shaft relative to the base, and the motor loading test rotary table is characterized in that an acting mechanism is arranged between the base and the platform; the acting mechanism can divide pipelines of the driving mechanism and the sensor into a fixed part and a rotating part, the fixed part is connected with the base, the rotating part is connected with the platform, and the rotating part can rotate around the first rotating shaft along with the platform and then rotate relative to the fixed part to avoid mutual winding of the pipelines. The utility model has the advantages that the pipelines of the driving mechanism and the sensor can be divided into the fixed part and the rotating part through the acting mechanism, the fixed part is connected with the base and is in a relatively static state, and the rotating part is connected with the platform and can rotate around the first rotating shaft along with the platform relative to the fixed part; therefore, winding of pipelines of the driving mechanism and the sensor is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of motor testing, and in particular to a turntable for motor loading testing. Background Art

[0002] Motor loading test refers to testing the performance of a motor by increasing the load during the operation of the motor, and is often used in device simulation testing, drive motor testing, etc. during the production and manufacturing process. Currently, commonly used motor loading test devices include structures such as test turntables. For example, a test turntable disclosed in the Chinese invention patent "Turntable Structure for Automatic Motor Testing" with the patent number CN202210366879.6 (publication number CN114441963B).

[0003] Since it is usually necessary to test the control accuracy and stability of the position, speed, etc. of the motor under different speed and load conditions, as well as various parameters such as torque output, response time, and current characteristics during the motor loading test, it is often necessary to install a variety of corresponding sensors on such test turntables. In addition, in some cases, not only one motor is tested. For example, during the simulation test of some devices, there may be a turntable that can rotate the load around three axes, and it is necessary to test the performance of each motor under various load conditions when multiple motors cooperate with each other. This has led to the following problems that may occur during the actual use of such test turntables.

[0004] Firstly, since there are a variety of sensors installed on the turntable, and some of these sensors will rotate around the motor axis with the turntable under the drive of the motor, this may cause the test signal lines of each sensor to become entangled with each other. In severe cases, it will affect the test process and even cause damage to some sensors. Secondly, when the turntable has the ability to perform multi-axis testing, there may be a situation where, for example, when the load rotates around the Z axis, the motor power lines corresponding to the X and Y axes are wound together. Therefore, it is necessary to further improve the existing motor loading test turntable. Summary of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a motor loading test turntable that can avoid the problem of entanglement of test signal lines and power lines, etc., in view of the above-mentioned current situation of the prior art.

[0006] The technical solution adopted by the utility model to solve the technical problem is as follows: A motor loading test turntable includes a base and a driving mechanism arranged on the base. The driving mechanism is connected to a platform for increasing the load object and installing sensors, so that the platform can rotate relative to the base at least around a first rotation axis of the driving mechanism. The characteristics are as follows:

[0007] An acting mechanism is further provided between the base and the platform. The acting mechanism can divide the pipelines of the driving mechanism and the sensor into a fixed part and a rotating part. The fixed part is connected to the base, and the rotating part is connected to the platform. The rotating part can rotate around the first rotation axis following the platform, and then rotate relative to the fixed part to avoid the pipelines from being wound around each other.

[0008] In order to enable the load to rotate around three axes, preferably, a rotating member for adding a load object and installing a sensor is further provided on the platform. The rotating member can also rotate around the second rotation axis of the driving mechanism relative to the platform, and the second rotation axis is perpendicular to the first rotation axis. With such a design, for example, if the first rotation axis is the Z axis and the second rotation axis is the X axis, the load can also rotate around the Y axis, thus realizing the function of three-axis rotation.

[0009] Furthermore, in order to enable the rotating member to rotate around the first rotation axis and the second rotation axis, preferably, the driving mechanism includes a first driving source provided on the base, and the power output shaft of the first driving source forms the first rotation axis. Correspondingly, a second driving source provided on the platform is also included, and the power output shaft of the second driving source forms the second rotation axis.

[0010] In order to avoid the pipelines of the second driving source and the sensor from being wound, preferably, the acting mechanism includes a first acting member for dividing the pipelines of the second driving source, and also includes a second acting member for dividing the pipelines of the sensor. The first acting member is located between the base and the platform, while the second acting member is located above the platform. Such a design is considered because the second driving source is a component such as a motor, and the specification of its power cord is usually larger than the test signal line of the sensor. Therefore, a first acting member needs to be provided for the pipelines of the second driving source, and a second acting member needs to be provided for the pipelines of the sensor.

[0011] In a further design, in order to enable the first acting member and the second acting member to divide the pipelines into a fixed part and a rotating part, preferably, the first acting member and the second acting member are slip rings. A slip ring is a device that allows electric power to be transmitted from a stationary structure to a rotating structure, including a stationary part and a rotating part, where the stationary part is connected to the fixed part, and the rotating part is used to be connected to the rotating part.

[0012] In order to enable the platform to install the rotating member, preferably, the platform is in a U-shaped frame structure, and the rotating member is in a plate-like structure, and both ends of the rotating member are connected to the side walls of the platform.

[0013] Further, in order to enable the second driving source to drive the rotating member to rotate around the second rotation axis, preferably, the second driving source is installed outside the side wall of the platform. Correspondingly, a through hole is formed in the side wall of the platform, and the power output shaft of the second driving source passes through the through hole and is connected to the rotating member.

[0014] Compared with the prior art, the advantages of the present utility model are as follows: The motor loading test turntable can divide the pipelines of the driving mechanism and the sensor into a fixed part and a rotating part through the acting mechanism. The fixed part is connected to the base and is in a relatively static state, while the rotating part is connected to the platform and can rotate around the first rotation axis relative to the fixed part following the platform, thereby avoiding the situation of entanglement of the pipelines of the above-mentioned driving mechanism and sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the motor loading test turntable in an embodiment of the present utility model;

[0016] Figure 2 is a partial exploded structural diagram of the motor loading test turntable in an embodiment of the present utility model;

[0017] Figure 3 is a schematic structural diagram of the first acting member in an embodiment of the present utility model;

[0018] Figure 4 is a schematic structural diagram of the second acting member in an embodiment of the present utility model;

[0019] Figure 5 is a schematic structural diagram of the connection structure between the first acting member and the base in an embodiment of the present utility model;

[0020] Figure 6 is a schematic structural diagram of the platform and the rotating member in an embodiment of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The present utility model will be further described in detail below in conjunction with specific embodiments.

[0022] As Figures 1 to 6 shown, it is a preferred embodiment of the present utility model. As Figure 1As shown in the figure, the motor loading test turntable in this embodiment includes a base 1 and a driving mechanism 2 disposed on the base 1. The driving mechanism 2 is connected to a platform 3 for adding a load object and installing sensors, so that the platform 3 can rotate relative to the base 1 at least around a first rotation axis 21 of the driving mechanism 2. A acting mechanism 4 is further disposed between the base 1 and the platform 3. The acting mechanism 4 can divide the pipelines P of the driving mechanism 2 and the sensors into a fixed part p1 and a rotating part p2. The fixed part p1 is connected to the base 1, and the rotating part p2 is connected to the platform 3. The rotating part p2 can follow the platform 3 to rotate around the first rotation axis 21, and then rotate relative to the fixed part p1 to avoid the pipelines P from being wound around each other. Further, in order to enable the load to rotate around three axes, a rotating member 31 for adding a load object and installing sensors is further disposed on the platform 3 of this embodiment. The rotating member 31 can also rotate relative to the platform 3 around a second rotation axis 22 of the driving mechanism 2, and the second rotation axis 22 is perpendicular to the first rotation axis 21. As Figure 2 shown, the first rotation axis 21 in this embodiment may be regarded as the Z axis, and the second rotation axis 22 is the X axis. Then the load can also rotate around the Y axis, so as to realize the function of three-axis rotation.

[0023] Further, in order to enable the rotating member 31 to rotate around the first rotation axis 21 and the second rotation axis 22, the driving mechanism 2 in this embodiment further includes a first driving source 211 disposed on the base 1. The power output shaft of the first driving source 211 forms the first rotation axis 21. Correspondingly, a second driving source 221 disposed on the platform 3 is also included. The power output shaft of the second driving source 221 forms the second rotation axis 22. Therefore, in order to avoid the pipelines P of the second driving source 221 and the sensors from being wound, as Figure 3 、 Figure 4 shown, the acting mechanism 4 in this embodiment includes a first acting member 41 for dividing the pipeline P of the second driving source 221, and also includes a second acting member 42 for dividing the pipeline P of the sensors. The first acting member 41 is located between the base 1 and the platform 3, and the second acting member 42 is located above the platform 3. Such a design is considered because the second driving source 221 in this embodiment is a motor, and the specification of its power cord is usually larger than the test signal line of the sensor. Therefore, the first acting member 41 needs to be provided for the pipeline P of the second driving source 221, and the second acting member 42 needs to be provided for the pipeline P of the sensors. And the first acting member 41 and the second acting member 42 in this embodiment are slip rings. See Figure 5, since the first acting member 41 is a slip ring, it has a stationary part and a rotating part. The stationary part is fixedly connected to the base 1 by bolts and is connected to the fixing part p1 of the pipeline P of the second drive source 211, while the rotating part is connected to the power output shaft of the first drive source 21 and is connected to the rotating part p2 of the pipeline P of the second drive source 211, so that the rotating part p2 can rotate relative to the fixing part p1 about the first rotation axis 21. Similarly, the stationary part of the second acting member 42 is fixed relative to the base 1, and the rotating part is connected to the platform 3 so as to be able to rotate with the platform 3.

[0024] In addition, as Figure 6 shown, in order to enable the platform 3 to mount the rotating member 31, the platform 3 in this embodiment has a U-shaped frame structure, and the rotating member 31 has a plate-like structure, and both ends of the rotating member 31 are connected to the side walls of the platform 3. There are two rotating members 31 provided on the platform 3 in this embodiment. Further, in order to enable the second drive source 221 to drive the rotating member 31 to rotate about the second rotation axis 22, the second drive source 221 in this embodiment is installed outside the side wall of the platform 3. Correspondingly, a through hole 32 is provided on the side wall of the platform 3, and the power output shaft of the second drive source 221 passes through the through hole 32 and is connected to the rotating member 31.

Claims

1. A motor loading test turntable, comprising a base (1) and a driving mechanism (2) arranged on the base (1), wherein the driving mechanism (2) is connected to a platform (3) for adding a load object and installing a sensor, so that the platform (3) can rotate relative to the base (1) at least around a first rotation axis (21) of the driving mechanism (2), characterized in that: An acting mechanism (4) is also provided between the base (1) and the platform (3), and the acting mechanism (4) is capable of dividing the pipeline (P) of the driving mechanism (2) and the sensor into a fixed part (p1) and a rotating part (p2), wherein the fixed part (p1) is connected to the base (1), and the rotating part (p2) is connected to the platform (3), and the rotating part (p2) is capable of rotating around the first rotating axis (21) following the platform (3), and then rotating relative to the fixed part (p1) to prevent the pipelines (P) from being entangled with each other.

2. The motor loading test turntable according to claim 1, characterized in that: The platform (3) is also provided with a rotating member (31) for adding a load object and installing a sensor. The rotating member (31) can also rotate relative to the platform (3) around the second rotating axis (22) of the driving mechanism (2), and the second rotating axis (22) is perpendicular to the first rotating axis (21).

3. The motor loading test turntable according to claim 2, characterized in that: The driving mechanism (2) comprises a first driving source (211) arranged on the base (1), wherein a power output shaft of the first driving source (211) forms the first rotating shaft (21), and correspondingly, comprises a second driving source (221) arranged on the platform (3), wherein a power output shaft of the second driving source (221) forms the second rotating shaft (22).

4. The motor loading test turntable according to claim 3, characterized in that: The actuating mechanism (4) comprises a first actuating member (41) for dividing the pipeline (P) of the second driving source (221), and a second actuating member (42) for dividing the pipeline (P) of the sensor, wherein the first actuating member (41) is located between the base (1) and the platform (3), and the second actuating member (42) is located above the platform (3).

5. The motor loading test turntable according to claim 4, characterized in that: The first acting member (41) and the second acting member (42) are slip rings.

6. The motor loading test turntable according to any one of claims 3 to 5, characterized in that: The platform (3) is in the form of a U-shaped frame structure, while the rotating member (31) is in the form of a plate, and both ends of the rotating member (31) are connected to the side walls of the platform (3).

7. The motor loading test turntable according to claim 6, characterized in that: The second driving source (221) is installed on the outer side of the side wall of the platform (3); correspondingly, a through hole (32) is provided on the side wall of the platform (3); a power output shaft of the second driving source (221) passes through the through hole (32) and is connected to the rotating member (31).

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