Tool for measuring weight and gravity center position of traction motor

Abstract

The utility model relates to the technical field of measuring tools, and provides a tool for measuring the weight and the gravity center position of a traction motor, which is suitable for fixing the traction motor on a force transducer of a vibration test stand and comprises a bottom frame and a side frame, the bottom frame is suitable for supporting the traction motor, and the side frame is suitable for supporting the traction motor. The bottom frame is provided with a first connecting part used for being connected with a force measuring sensor. The side frame is fixedly connected with the bottom frame and provided with a second connecting part used for being connected with a side mounting base of the traction motor. According to the arrangement, the traction motor is placed on the bottom frame, the side mounting seat of the traction motor is fixedly connected with the side frame, and then the bottom frame is connected with the force transducer on the vibration test bed, so that the traction motor is mounted on the vibration test bed. And then the vibration test bench is started to provide vertical, transverse and longitudinal loading forces, and the weight and the gravity center position of the traction motor can be determined through testing and calculation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of measuring frock, provide a kind of for the measurement frock of traction motor weight, barycenter position. BACKGROUND

[0002] Railway vehicle traction motor is the important component of railway vehicle traction system, provides power for railway vehicle, and the rationality of its design is important to railway vehicle. In the design process of railway vehicle, the weight, barycenter position (vertical, transverse, longitudinal coordinates) of traction motor is often needed to optimize the spatial structure design of traction motor.

[0003] Therefore, the measurement demand of the weight, barycenter position of traction motor is an important topic to be solved in the industry at present. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a kind of for the measurement frock of traction motor weight, barycenter position, to measure the weight, barycenter position of traction motor, to promote the optimization design of the spatial structure of traction motor.

[0005] The utility model provides a kind of for the measurement frock of traction motor weight, barycenter position, is suitable for fixing traction motor on the force sensor of vibration test bench, the measurement frock for traction motor weight, barycenter position includes:

[0006] Chassis is suitable for supporting the traction motor, and the first connecting portion for being connected with the force sensor is arranged on the chassis;

[0007] Side frame is fixedly connected with the chassis, and the second connecting portion for being connected with the side mounting seat of traction motor is arranged on the side frame.

[0008] According to the measurement frock for traction motor weight, barycenter position provided by the utility model, the first connecting portion is provided with two, the distribution direction of two first connecting portions is parallel with the axial direction of traction motor, and each first connecting portion is connected with one force sensor.

[0009] According to the measurement frock for traction motor weight, barycenter position provided by the utility model, the first connecting portion includes:

[0010] Connecting plate, the two ends of the connecting plate are provided with first connecting hole, the second connecting hole is arranged on the chassis, the connecting plate is connected with the chassis by first connecting bolt, the middle part of the connecting plate is provided with third connecting hole, and the third connecting hole is suitable for being connected with the force sensor.

[0011] According to the present invention, a measuring fixture for the weight and center of gravity position of a traction motor is provided. The first of the first connecting hole and the second connecting hole is a strip hole, and the second is a through hole adapted to the first connecting bolt. The length direction of the first hole is parallel to the distribution direction of the two first connecting parts.

[0012] According to the present invention, a measuring fixture for the weight and center of gravity position of a traction motor is provided, wherein multiple third connecting holes are provided, and the multiple third connecting holes are arranged in rows and columns.

[0013] According to the present invention, a measuring fixture for the weight and center of gravity position of a traction motor is provided. The side mounting base includes a first mounting base and a second mounting base distributed vertically, the first mounting base and the second mounting base having mounting holes; the second connecting part includes:

[0014] The first crossbeam is provided with a fourth connecting hole, which is adapted to be connected to the first mounting base;

[0015] The second crossbeam is disposed below the first crossbeam, and the second crossbeam is provided with a fifth connecting hole, which is adapted to be connected to the second mounting base.

[0016] According to the present invention, a measuring fixture for the weight and center of gravity position of a traction motor is provided, wherein multiple fourth connecting holes and multiple fifth connecting holes are provided, the multiple fourth connecting holes are distributed at intervals, and the distribution direction of the multiple fourth connecting holes and the distribution direction of the multiple fifth connecting holes are parallel to the axial direction of the traction motor.

[0017] According to the present invention, a measuring fixture for the weight and center of gravity position of a traction motor is provided, wherein the fourth connecting hole and the fifth connecting hole are both strip-shaped holes, and the length direction of the fourth connecting hole and the length direction of the fifth connecting hole are both parallel to the axial direction of the traction motor.

[0018] The measuring fixture for the weight and center of gravity position of a traction motor provided by this utility model further includes:

[0019] A pair of end frames, two of which are distributed at both ends of the base frame along the axial direction of the traction motor, and each end frame is fixedly connected to the base frame and the side frame.

[0020] According to the present invention, a measuring fixture for the weight and center of gravity position of a traction motor is provided, wherein the plane of the base frame, the plane of the side frame, and the plane of the end frame are perpendicular to each other, and the end frame is triangular.

[0021] This utility model provides a measuring fixture for the weight and center of gravity position of a traction motor. It is used to fix the traction motor onto a force sensor on a vibration test bench, allowing for the measurement of the traction motor's weight and center of gravity position using the vibration test bench and the force sensor. The measuring fixture includes a base frame and a side frame. The base frame supports the traction motor and has a first connecting part for connecting to the force sensor, thus fixing the base frame to the force sensor. The side frame is fixedly connected to the base frame and has a second connecting part for connecting to a side mounting base of the traction motor. With this configuration, when measuring the weight and center of gravity position of the traction motor, the traction motor is placed on the base frame, and the side mounting base of the traction motor is fixedly connected to the side frame. Then, the base frame is connected to the force sensor on the vibration test bench, thus achieving the installation of the traction motor on the vibration test bench. Then, the vibration test bench is turned on to provide vertical, lateral, and longitudinal loading forces. Through testing and calculation, the weight and center of gravity of the traction motor can be determined, thus meeting the measurement requirements for the weight and center of gravity of the traction motor. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0023] Figure 1 This is a front view of the measuring fixture for the weight and center of gravity of a traction motor provided by this utility model when the traction motor and a force sensor are installed.

[0024] Figure 2 This is a side view of the measuring fixture for the weight and center of gravity of a traction motor provided by this utility model when the traction motor is installed.

[0025] Figure 3 This is a top view of the measuring fixture for the weight and center of gravity of a traction motor provided by this utility model when the traction motor is installed.

[0026] Figure 4 This is the front view of the measuring fixture for the weight and center of gravity position of a traction motor provided by this utility model.

[0027] Figure 5 This is a side view of the measuring fixture for the weight and center of gravity of a traction motor provided by this utility model.

[0028] Figure 6This is a top view of the measuring fixture for the weight and center of gravity of a traction motor provided by this utility model.

[0029] Figure label:

[0030] 1. Traction motor; 2. Force sensor; 3. Vibration test bench; 4. Base frame; 5. Side frame; 6. Connecting plate; 7. First connecting hole; 8. End frame; 9. Third connecting hole; 10. First mounting base; 11. Second mounting base; 12. First crossbeam; 13. Fourth connecting hole; 14. Second crossbeam; 15. Fifth connecting hole. Detailed Implementation

[0031] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0032] The following is combined Figures 1 to 6 This invention describes a measuring fixture for the weight and center of gravity position of a traction motor.

[0033] like Figures 1 to 6 As shown in the figure, the measuring fixture for the weight and center of gravity position of the traction motor provided in this embodiment of the utility model is used to fix the traction motor 1 onto the force sensor 2 of the vibration test bench 3, so as to measure the weight and center of gravity position of the traction motor 1 using the vibration test bench 3 and the force sensor 2. The force sensor 2 mentioned above is a six-component force sensor.

[0034] The measuring fixture for the weight and center of gravity of the traction motor includes a base frame 4 and a side frame 5.

[0035] Specifically, the base frame 4 is used to support the traction motor 1. A first connecting part is provided on the base frame 4, which is used to connect with the force sensor 2 to fix the base frame 4 on the force sensor 2.

[0036] The side frame 5 is fixedly connected to the base frame 4. The side frame 5 is provided with a second connecting part, which is used to connect to the side mounting seat of the traction motor 1.

[0037] With this setup, when it is necessary to measure the weight and center of gravity of the traction motor 1, the traction motor 1 is placed on the base frame 4, and the side mounting bracket of the traction motor 1 is fixedly connected to the side frame 5. Then, the base frame 4 is connected to the force sensor 2 on the vibration test bench 3, thus realizing the installation of the traction motor 1 on the vibration test bench 3. Then, the vibration test bench 3 is turned on to provide vertical, lateral, and longitudinal loading forces. Through testing and calculation, the weight and center of gravity of the traction motor 1 can be determined, thus meeting the measurement requirements for the weight and center of gravity of the traction motor 1.

[0038] It should be noted that when measuring the weight and center of gravity of the traction motor 1 using the vibration test bench 3, the force sensor 2, and the measuring fixture for measuring the weight and center of gravity of the traction motor provided in this embodiment of the invention, the force sensor 2 needs to be zeroed first. Then, the base frame 4 of the measuring fixture for measuring the weight and center of gravity of the traction motor provided in this embodiment of the invention is fixedly connected to the force sensor 2. The vibration test bench 3 is turned on to provide vertical, lateral, and longitudinal loading forces to the measuring fixture, and the weight and center of gravity of the measuring fixture are measured. The test data is recorded and saved. The measuring fixture is then removed from the force sensor 2, and the force sensor 2 is zeroed. The traction motor 1 is then fixed to the measuring fixture, and the measuring fixture with the traction motor 1 fixed is fixedly connected to the force sensor 2. The vibration test bench 3 is turned on again to provide vertical, lateral, and longitudinal loading forces to the measuring fixture and the traction motor 1, and the weight and center of gravity of the measuring fixture and the measuring fixture as a whole are measured. The test data is recorded and saved. After the test is completed, the weight and center of gravity position parameters of the traction motor 1 can be calculated and determined based on the two sets of data. The technique of using the vibration test bench 3 and the force sensor 2 to measure the weight and center of gravity position is well known to those skilled in the art and will not be described in detail here.

[0039] In this embodiment of the invention, two first connecting parts are provided, and the distribution direction of the two first connecting parts is parallel to the axial direction of the traction motor 1. (Refer to...) Figure 3 and Figure 6 Each first connecting part is connected to a force sensor 2.

[0040] With this configuration, the measuring fixture for the weight and center of gravity of the traction motor provided in this embodiment of the present invention is connected to the vibration test bench 3 through two force sensors 2, which can accurately measure and analyze the dynamic response of the traction motor 1 and the measuring fixture under vibration conditions.

[0041] In this embodiment, the first connecting part includes a connecting plate 6. The two opposite ends of the connecting plate 6 are provided with first connecting holes 7, and the base frame 4 is provided with second connecting holes. The connecting plate 6 and the base frame 4 can be fixedly connected together by the first connecting bolt and nut through the first connecting holes 7 and the second connecting holes, so that the first connecting part is set on the base frame 4.

[0042] A third connecting hole 9 is provided in the middle of the connecting plate 6 so that the connecting plate 6 and the force sensor 2 can be fixedly connected together by the second connecting bolt and nut, so as to realize the connection between the first connecting part and the force sensor 2.

[0043] In this embodiment, the first of the first connecting hole 7 and the second connecting hole can be configured as a strip hole, and the second of the first connecting hole 7 and the second connecting hole can be configured as a through hole adapted to the first connecting bolt. The length direction of the first hole is parallel to the distribution direction of the two first connecting portions.

[0044] For example, the first connecting hole 7 can be configured as a through hole adapted to the first connecting bolt, and the second connecting hole can be configured as a strip hole. When the connecting plate 6 and the base frame 4 have different relative positions, the first connecting hole 7 and the second connecting hole can be connected accordingly, and the first connecting bolt can pass through both the first connecting hole 7 and the second connecting hole.

[0045] This configuration improves the adaptability of the first connecting hole 7 and the second connecting hole to the relative positions of the connecting plate 6 and the base frame 4, and reduces the requirements for the machining accuracy of the first connecting hole 7 and the second connecting hole.

[0046] In this embodiment, multiple third connection holes 9 are provided on the connecting plate 6, and the multiple third connection holes 9 are arranged in rows and columns.

[0047] With this setup, multiple second connecting bolts can be used to connect the connecting plate 6 and the force sensor 2 together, thereby improving the connection strength between the measuring fixture used for measuring the weight and center of gravity of the traction motor and the force sensor 2, and improving the reliability of the connection.

[0048] In addition, multiple third connection holes 9 are provided on the connecting plate 6, which provide selectivity for the connection position of the force sensor 2 on the connecting plate 6 when the connecting plate 6 is connected to the force sensor 2.

[0049] In a specific embodiment, the connecting plate 6 can be placed above the base frame 4, and a certain number of sixth connecting holes are provided on the base frame 4. When the connecting plate 6 is placed on the base frame 4, the sixth connecting holes correspond one-to-one with the third connecting holes 9. The connecting plate 6 is located above the base frame 4, and the base frame 4 can support the connecting plate 6, making the connection structure between the connecting plate 6 and the base frame 4 more stable and reliable.

[0050] Regarding the structure of the traction motor 1, the side mounting base of the traction motor 1 includes a first mounting base 10 and a second mounting base 11, which are vertically distributed, with the first mounting base 10 located above the second mounting base 11. Both the first and second mounting bases have mounting holes, allowing the traction motor 1 to be mounted on the bogie of the rail vehicle using bolts. Specifically, the mounting hole on the first mounting base 10 is the first mounting hole, with its axis oriented vertically. The mounting hole on the second mounting base 11 is the second mounting hole, with its axis oriented horizontally and perpendicular to the axis of the traction motor 1. Two first and two second mounting holes are provided, and the distribution directions of both the first and second mounting holes are parallel to the axis of the traction motor 1.

[0051] In this embodiment of the present invention, the second connecting part includes a first crossbeam 12 and a second crossbeam 14, with the second crossbeam 14 disposed below the first crossbeam 12. The first crossbeam 12 is used to connect with the first mounting base 10 of the traction motor 1, and the second crossbeam 14 is used to connect with the second mounting base 11 of the traction motor 1.

[0052] Specifically, a fourth connecting hole 13 is provided on the first crossbeam 12, and the axis of the fourth connecting hole 13 is arranged in the vertical direction. The fourth connecting hole 13 is used to correspond to the first mounting hole on the first mounting base 10, so as to fix the first mounting base 10 of the traction motor 1 to the first crossbeam 12 on the side frame 5 together using the third connecting bolt.

[0053] The second crossbeam 14 is provided with a fifth connecting hole 15, the axis of which is arranged horizontally and parallel to the axis of the traction motor 1. The fifth connecting hole 15 is used to correspond to the second mounting hole on the second mounting base 11, so as to fix the second mounting base 11 of the traction motor 1 to the second crossbeam 14 on the side frame 5 together using the fourth connecting bolt.

[0054] It should be noted that the base frame 4 and side frame 5 can be formed from sheet metal or can be a hollow frame structure formed by overlapping pipes, as long as it can ensure the load-bearing capacity of the measuring fixture used for measuring the weight and center of gravity of the traction motor. In this embodiment, when setting the fourth connecting hole 13 and the fifth connecting hole 15, the first crossbeam 12 and the second crossbeam 14 are set on the basis of the side frame 5, which can increase the rigidity and strength of the structure around the fourth connecting hole 13 and the structure around the fifth connecting hole 15.

[0055] In some embodiments, multiple fourth connecting holes 13 and multiple fifth connecting holes 15 are provided, with the multiple fourth connecting holes 13 distributed at intervals. The distribution direction of the multiple fourth connecting holes 13 and the distribution direction of the multiple fifth connecting holes 15 are both parallel to the axial direction of the traction motor 1.

[0056] When connecting the first mounting base 10 of the traction motor 1 to the first crossbeam 12, two corresponding fourth connecting holes 13 can be selected according to the spacing between the two first mounting holes on the first mounting base 10.

[0057] In this way, the machining accuracy requirements for the fourth connecting hole 13 can be reduced, and the measuring fixture for the weight and center of gravity of the traction motor provided in this embodiment has high scalability and can be applied to different models of traction motors 1.

[0058] In other embodiments, the fourth connecting hole 13 and the fifth connecting hole 15 are both strip-shaped holes, and the length direction of the fourth connecting hole 13 and the length direction of the fifth connecting hole 15 are both parallel to the axial direction of the traction motor 1.

[0059] When the traction motor 1 and the second connecting part have different relative positions, the first mounting hole of the traction motor 1 can be connected to the fourth connecting hole 13, the second mounting hole of the traction motor 1 can be connected to the fifth connecting hole 15, the third connecting bolt can pass through the first mounting hole and the fourth connecting hole 13, and the fourth connecting bolt can pass through the second mounting hole and the fifth connecting hole 15.

[0060] This configuration improves the adaptability to the relative position of the traction motor 1 and the second connection part, and reduces the requirements for the machining accuracy of the fourth connection hole 13 and the fifth connection hole 15.

[0061] In this embodiment of the utility model, the measuring fixture for the weight and center of gravity position of the traction motor also includes an end frame 8.

[0062] A pair of end frames 8 are provided, with two of them distributed at both ends of the base frame 4 along the axial direction of the traction motor 1. Each end frame 8 is fixedly connected to the base frame 4 and the side frame 5. The base frame 4, the side frame 5, and the pair of end frames 8 are fixedly connected together, which improves the rigidity and strength of the measuring fixture used for measuring the weight and center of gravity of the traction motor, enhances its stability, and makes the measurement results of the weight and center of gravity of the traction motor 1 more accurate.

[0063] It should be noted that the end frame 8 can be formed from sheet metal or it can be a hollow frame structure formed by overlapping pipes.

[0064] In this embodiment, the plane where the base frame 4 is located, the plane where the side frame 5 is located, and the plane where the end frame 8 is located are perpendicular to each other, and the end frame 8 is triangular.

[0065] Specifically, the end frame 8 is configured as a right-angled triangle, with one right-angled side of the end frame 8 fixedly connected to the base frame 4, and the other right-angled side of the end frame 8 fixedly connected to the side frame 5. The triangular end frame 8 has a stable structure, which can further improve the stability of the measuring fixture used for measuring the weight and center of gravity of the traction motor.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A measuring fixture for the weight and center of gravity position of a traction motor, characterized in that, A force sensor (2) suitable for fixing a traction motor (1) to a vibration test bench (3), the measuring fixture for measuring the weight and center of gravity of the traction motor includes: The base frame (4) is adapted to support the traction motor (1), and the base frame (4) is provided with a first connecting part for connecting to the force sensor (2); The side frame (5) is fixedly connected to the base frame (4), and the side frame (5) is provided with a second connecting part for connecting to the side mounting seat of the traction motor (1).

2. The measuring fixture for the weight and center of gravity position of a traction motor according to claim 1, characterized in that, There are two first connecting parts. The distribution direction of the two first connecting parts is parallel to the axial direction of the traction motor (1). Each first connecting part is connected to one force sensor (2).

3. The measuring fixture for the weight and center of gravity position of a traction motor according to claim 2, characterized in that, The first connecting part includes: The connecting plate (6) has a first connecting hole (7) at both ends of the connecting plate (6) which are arranged opposite to each other, and a second connecting hole on the base frame (4). The connecting plate (6) and the base frame (4) are connected by a first connecting bolt. The connecting plate (6) has a third connecting hole (9) in the middle, which is suitable for connecting to the force sensor (2).

4. The measuring fixture for the weight and center of gravity position of a traction motor according to claim 3, characterized in that, The first connecting hole (7) and the second connecting hole are both strip-shaped holes, and the second connecting hole is a through hole adapted to the first connecting bolt. The length direction of the first connecting hole is parallel to the distribution direction of the two first connecting parts.

5. The measuring fixture for the weight and center of gravity position of a traction motor according to claim 3, characterized in that, The third connecting hole (9) is provided in multiple ways, and the multiple third connecting holes (9) are arranged in rows and columns.

6. The measuring fixture for the weight and center of gravity position of a traction motor according to any one of claims 1-5, characterized in that, The side mounting base includes a first mounting base (10) and a second mounting base (11) distributed vertically, the first mounting base (10) and the second mounting base (11) having mounting holes; the second connecting part includes: The first crossbeam (12) is provided with a fourth connecting hole (13), which is adapted to be connected to the first mounting base (10); The second crossbeam (14) is located below the first crossbeam (12). The second crossbeam (14) is provided with a fifth connecting hole (15), which is adapted to be connected to the second mounting base (11).

7. The measuring fixture for the weight and center of gravity position of a traction motor according to claim 6, characterized in that, The fourth connecting hole (13) and the fifth connecting hole (15) are provided in multiples. The multiple fourth connecting holes (13) are distributed at intervals. The distribution direction of the multiple fourth connecting holes (13) and the distribution direction of the multiple fifth connecting holes (15) are both parallel to the axial direction of the traction motor (1).

8. The measuring fixture for the weight and center of gravity position of a traction motor according to claim 6, characterized in that, Both the fourth connecting hole (13) and the fifth connecting hole (15) are strip-shaped holes. The length direction of the fourth connecting hole (13) and the length direction of the fifth connecting hole (15) are parallel to the axis of the traction motor (1).

9. The measuring fixture for the weight and center of gravity position of a traction motor according to any one of claims 1-5, characterized in that, Also includes: A pair of end frames (8), two of the pair of end frames (8) are distributed at both ends of the base frame (4) along the axial direction of the traction motor (1), and each end frame (8) is fixedly connected to the base frame (4) and the side frame (5).

10. The measuring fixture for the weight and center of gravity position of a traction motor according to claim 9, characterized in that, The plane where the base frame (4) is located, the plane where the side frame (5) is located, and the plane where the end frame (8) is located are perpendicular to each other, and the end frame (8) is triangular.

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