Test stand

Abstract

The utility model discloses a test frame, including support, lifting stand, rotating stand and rotary drive part, lifting stand with support liftable connection. Rotating stand with one side of lifting stand is connected, and rotating stand is used for installing measured member and test member. Rotary drive part is connected with lifting stand, and drives rotating stand rotates around a horizontal axis. The test frame of the utility model can satisfy the test requirement of motor, gear box or propeller under the multiple angle, and the height of rotating stand is adjustable, can be adapted to a variety of propeller test demand, and lifting stand is covered outside four support columns, and the stability is higher, and through hydraulic nut fixed, the height is adjusted conveniently, and the operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing equipment technology, and in particular to a testing frame. Background Technology

[0002] As the motor and gearbox are in different postures (such as tilting forward, tilting backward, tilting sideways), the oil level, splashing effect, and flow direction of the lubricating oil inside will change significantly, which will directly affect the lubrication effect of the bearings and gear meshing surfaces, and may lead to local overheating, abnormal wear, or even sintering.

[0003] Therefore, it is necessary to conduct simulation tests on the motor and gearbox in a rotating state, simulating the vehicle going up and down slopes, or the aircraft propeller climbing / diving, to verify the reliability of the lubrication system under all attitudes.

[0004] For example, the pressure distribution on the dynamic seal of the rotating shaft and the static seal of the housing mating surface differs at different angles. Therefore, it is necessary to check whether lubricating oil leakage occurs at specific angles.

[0005] In other cases, the change in the gravitational component of the motor and gearbox during rotation can redistribute the gear meshing force, bearing radial and axial forces, which may induce vibrations and noise (NVH) specific to rotation. Therefore, it is necessary to test the vibration signals of the motor and gearbox during rotation.

[0006] However, the existing test fixtures cannot meet the testing requirements of motors and gearboxes at multiple angles, and due to the different sizes of propellers, the existing test fixtures cannot meet the testing needs of various propellers. Utility Model Content

[0007] The purpose of this invention is to provide a test fixture to solve the problems of the prior art.

[0008] To address the aforementioned technical problems, this utility model provides a test fixture, comprising:

[0009] support;

[0010] A lifting frame, wherein the lifting frame is vertically and vertically connected to the support frame;

[0011] A rotating frame, connected to one side of the lifting frame, is used to mount the workpiece to be tested and the test piece.

[0012] A rotary drive unit is connected to the lifting frame and drives the rotating frame to rotate around a horizontal axis.

[0013] In one embodiment, the lifting frame is ring-shaped and fitted onto the support.

[0014] In one embodiment, the test frame further includes a lifting drive component, which is mounted on the bracket and drives the lifting frame to move up and down.

[0015] In one embodiment, the lifting drive includes:

[0016] A lifting motor, which is connected to the bottom of the bracket;

[0017] A lead screw, which extends vertically and is connected to the output shaft of the lifting motor;

[0018] A nut, which is connected to the lifting frame and fitted over the lead screw.

[0019] In one embodiment, the lifting frame includes two crossbeams, which are respectively connected to both sides of the nut.

[0020] In one embodiment, the bracket further includes a guide rail extending in a vertical direction;

[0021] The lifting frame is provided with mounting holes;

[0022] The test fixture also includes:

[0023] Tighten the nut;

[0024] The T-bolt is installed in the guide rail. One end of the T-bolt is slidably installed in the corresponding guide rail, and the other end passes through the mounting hole and is connected to the lock nut.

[0025] In one embodiment, the bracket further includes a guide rail extending in a vertical direction;

[0026] The lifting frame is provided with mounting holes;

[0027] The test fixture also includes:

[0028] A T-bolt, one end of which is slidably mounted inside the guide rail, and the other end extending beyond the mounting hole;

[0029] A piston, the internal thread of which is threadedly connected to the T-bolt;

[0030] A locking nut, which is connected to the external thread of the piston thread and is provided with a filling hole.

[0031] In one embodiment, the bracket includes four vertically extending guide rails;

[0032] The lifting frame is fitted around the four guide rails and includes at least four rows of mounting holes;

[0033] One end of each of the T-bolts is slidably mounted within one of the four guide rails, and the other end extends beyond the corresponding mounting hole and is connected to the piston.

[0034] In one embodiment, the rotation drive is a rotary motor, and the output shaft of the rotary motor is connected to the rotating frame.

[0035] In one embodiment, the rotary drive includes a rotary motor and a transmission gear, the output shaft of the rotary motor being connected to the transmission gear, and the transmission gear being connected to the rotary frame.

[0036] The test frame of this utility model can meet the testing requirements of motors, gearboxes or propellers at multiple angles. Moreover, the height of the rotating frame is adjustable, which can adapt to the testing needs of various propellers. Furthermore, the lifting frame is fitted outside the four support columns, which provides high stability. It is also fixed by hydraulic nuts, which makes it easy to adjust the height and operate. Attached Figure Description

[0037] Figure 1 This is a perspective view of a test fixture according to an embodiment of the present invention.

[0038] Figure 2 and 3 They are Figure 1 Exploded view of the test fixture in the illustrated embodiment.

[0039] Figure 4 yes Figure 1 A perspective view of the test fixture in the illustrated embodiment.

[0040] Figure 5 yes Figure 4 The cross-sectional view of the test fixture along line AA in the illustrated embodiment.

[0041] Figure 6 yes Figure 1 Exploded view of the test fixture in the illustrated embodiment.

[0042] Reference numerals: 100, Test fixture; 1, Bracket; 11, Support frame; 12, Support column; 13, Guide rail; 2, Lifting frame; 21, Rectangular frame; 22, Crossbeam; 23, Mounting hole; 3, Rotating frame; 31, Mounting position; 4, Lifting motor; 41, Lead screw; 42, Nut; 5, Rotary motor; 51, Transmission gear; 6, Hydraulic nut; Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0044] Unless the context requires otherwise, throughout the specification and claims, the word “comprising” and its variations, such as “including” and “having”, shall be understood to have an open, inclusive meaning, that is, to be interpreted as “including, but not limited to”.

[0045] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings to provide a clearer understanding of the purpose, features, and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are merely illustrative of the essential spirit of the technical solution of this utility model.

[0046] Throughout this specification, references to "an embodiment" or "an embodiment" indicate that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Therefore, the appearance of "in an embodiment" or "an embodiment" in various places throughout the specification does not necessarily refer to the same embodiment. Furthermore, a particular feature, structure, or characteristic may be combined in any manner in one or more embodiments.

[0047] The singular forms “a” and “the” used in this specification and the appended claims include plural references unless otherwise expressly stated herein. It should be noted that the term “or” is generally used to mean “and / or” unless otherwise expressly stated herein.

[0048] In the following description, in order to clearly demonstrate the structure and working method of this utility model, a number of directional terms will be used. However, terms such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and not as limiting terms.

[0049] This utility model relates to a test fixture 100, such as Figure 1-6 As shown, it includes a bracket 1, a lifting frame 2, a lifting drive component, a rotating frame 3, and a rotating drive component. The bracket 1 includes a support frame 11 located at the bottom and four support columns 12. The four support columns 12 extend vertically and are arranged in a quadrangular prism structure. The bottom ends of the four support columns 12 are respectively connected to the top surface of the support frame 11.

[0050] Each support column 12 has a guide rail 13 extending vertically on its outer side, and the guide rail 13 is a T-shaped groove that opens outward.

[0051] The lifting drive component includes a lifting motor 4, a lead screw 41, and a nut 42. The lifting motor 4 is connected to the support frame 11, while the lead screw extends vertically and is located inside the quadrangular prism structure formed by four support columns 12. The bottom end of the lead screw 41 is connected to the output shaft of the lifting motor 4, and the top end is threadedly connected to the nut 42.

[0052] Nut 42 is fitted over the lead screw and connected to the lifting frame 2. The rotation of the lifting motor 4 can drive the lifting frame 2 to rise and fall through the lead screw 41.

[0053] In one specific embodiment, such as Figure 2 and Figure 4 As shown, the lifting frame 2 includes a rectangular frame 21 fitted around four support columns 12 and two crossbeams 22 connected to the rectangular frame 21. The two ends of the two crossbeams 22 are connected to opposite sides of the rectangular frame 21, and the two crossbeams 22 are clamped around and fixedly connected to nuts 42. During the rotation of the lifting motor 4, the nuts 42 and the two crossbeams 22 can drive the rectangular frame 21 to move vertically.

[0054] Of course, in another embodiment, the lifting frame 2 can also be raised and lowered by a hydraulic cylinder. Alternatively, the lifting frame 2 can be manually moved to a preset position and then fixed to the four support columns 12 with bolts.

[0055] As a preferred embodiment, the lifting frame 2 is raised to a preset position and locked by a hydraulic nut 642. Specifically, the four sides of the rectangular frame 21 are provided with a row of mounting holes 23, and each row of mounting holes 23 is aligned with the guide rails 13 outside the four support columns 12. Each row of mounting holes 23 may include one, two, three or more mounting holes 23.

[0056] Multiple hydraulic nuts 642 respectively engage with multiple mounting holes 23 in each row of mounting holes 23 to fix the lifting frame 2 onto the four support columns 12. Each hydraulic nut 642 corresponds to one mounting hole 23. Each hydraulic nut 642 includes a T-bolt, a piston, and a locking nut. The head end of the T-bolt is slidably installed in the T-slot of the guide rail 13, and the threaded portion of the T-bolt extends beyond the corresponding mounting hole 23.

[0057] The piston is ring-shaped and has internal and external threads. The piston is fitted around the screw of the T-bolt and its internal thread is threaded to the screw of the T-bolt.

[0058] The lock nut is fitted over the piston and threaded into its external threads. The lock nut has a filling hole. After adding hydraulic oil, the piston and lock nut move outwards, the T-bolt is stretched, the lock nut is tightened, and the system is then fixed in place after depressurization.

[0059] The hydraulic nut 642 can fix the lifting frame 2 more stably on the support column 12, and also facilitate the adjustment of the position of the lifting frame 2.

[0060] Of course, in another embodiment, multiple T-bolts and multiple locking nuts can be used to fix the lifting frame 2 to the support column 12. The head of each T-bolt can also be slidably installed in the T-slot of the guide rail 13, and the screw passes through the corresponding mounting hole 23 of the rectangular frame 21 and is threadedly connected to the locking nut.

[0061] The rotating frame 3 is installed on the outside of the rectangular frame 21. The top of the rotating frame 3 is provided with a mounting position 31, which is used to install the test piece and the test piece. During the rotation, the rotating frame 3 can drive the test piece and the test piece to rotate, thereby testing the performance of the test piece in the rotating state, such as the vibration signal of the motor or gearbox in the rotating state or the performance detection of the propeller in the rotating state.

[0062] The rotation drive includes a rotary motor 5, which is mounted on the lifting frame 2 and can rise and fall with the lifting frame 2. For propellers of different sizes, different heights need to be adjusted to prevent the propeller from touching the bottom surface during rotation.

[0063] The output shaft of the rotary motor 5 is connected to the rotary frame 3, which can drive the rotary frame 3 to rotate around a horizontal axis. The test piece is mounted on the top surface of the rotary frame 3 and can rotate with the rotary frame 3.

[0064] exist Figure 2 , Figure 3 and Figure 6 In the embodiment shown, the rotation drive includes a rotary motor 5, a transmission gear 51, and a rotating shaft. The rotary motor 5 and the transmission shaft are mounted on the lifting frame 2. The output shaft of the rotary motor 5 meshes with the transmission gear 51, which can drive the transmission gear 51 to rotate. The transmission gear 51 is rotatably mounted on the output shaft and fixedly connected to the rotating frame 3. During the rotation of the rotary motor 5, the rotating frame 3 can be driven to rotate through the transmission gear 51.

[0065] In addition, the rotating frame 3 can also be equipped with sensors to detect the rotation speed of the rotating frame 3. The sensors are connected to an external control module to transmit the detected signals to the control module. The control module controls the operation of the rotating motor 5 according to the sensor signals and detection requirements.

[0066] Of course, in other embodiments, a laterally movable X-axis support frame and a Y-axis support frame can also be provided on the lifting frame. The X-axis support frame is fixed on the lifting frame and is provided with an X-axis guide rail extending along the X-axis and an X-axis slider that can be slidably installed in the X-axis guide rail. The X-axis slider is driven by a motor to slide along the X-axis direction on the X-axis guide rail.

[0067] The Y-axis support frame is fixedly connected to the X-axis slider and is provided with a Y-axis guide rail extending along the Y-axis. The Y-axis slider is installed inside the Y-axis guide rail. The Y-axis motor is fixedly installed on the Y-axis support frame and can drive the Y-axis slider to slide along the Y direction inside the Y-axis guide rail.

[0068] Part of the X-axis support frame is located outside the rectangular frame, as is the X-axis guide rail, while the X-axis slider only moves outside the rectangular frame. The Y-axis guide rail and Y-axis slider are also located outside the rectangular frame.

[0069] A support plate extending along the Y-axis is connected to the top surface of the Y-axis slider. The support plate has a certain length; one end is connected to the Y-axis slider, and the other end extends to the outside of the Y-axis support frame for mounting a rotary motor and a rotating frame. The rotary motor and rotating frame move along the Y-axis following the support plate. Due to the length of the support plate, the rotating frame will not touch the Y-axis support frame during rotation. This configuration allows the rotating frame to move in the vertical, X, and Y directions. The X and Y directions are horizontal, and the X, Y, and vertical directions are mutually perpendicular, thus meeting testing requirements under different postures.

[0070] The test frame 100 of this utility model can meet the testing requirements of motors, gearboxes or propellers at multiple angles. Moreover, the height of the rotating frame 3 is adjustable, which can adapt to the testing needs of various propellers. Furthermore, the lifting frame 2 is fitted outside the four support columns 12, which has high stability and is fixed by hydraulic nuts 642, making it easy to adjust the height and operate.

[0071] The preferred embodiments of the present invention have been described in detail above, but it should be understood that, if necessary, aspects of the embodiments can be modified to utilize aspects, features, and concepts from various patents, applications, and publications to provide other embodiments.

[0072] In light of the detailed description above, these and other changes can be made to the embodiments. Generally, the terminology used in the claims should not be considered limited to the specific embodiments disclosed in the specification and claims, but should be understood to include all possible embodiments together with the full scope of equivalents enjoyed by these claims.

[0073] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A test fixture, characterized in that, include: support; A lifting frame, wherein the lifting frame is vertically and vertically connected to the support frame; A rotating frame, connected to one side of the lifting frame, is used to mount the workpiece to be tested and the test piece. A rotary drive unit is connected to the lifting frame and drives the rotating frame to rotate around a horizontal axis.

2. The test fixture according to claim 1, characterized in that, The lifting frame is ring-shaped and is fitted onto the support.

3. The test fixture according to claim 1, characterized in that, The test frame also includes a lifting drive component, which is mounted on the bracket and drives the lifting frame to move up and down.

4. The test fixture according to claim 3, characterized in that, The lifting drive component includes: A lifting motor, which is connected to the bottom of the bracket; A lead screw, which extends vertically and is connected to the output shaft of the lifting motor; A nut, which is connected to the lifting frame and fitted over the lead screw.

5. The test fixture according to claim 4, characterized in that, The lifting frame includes two crossbeams, which are respectively connected to both sides of the nut.

6. The test fixture according to claim 1, characterized in that, The bracket also includes a guide rail extending in the vertical direction; The lifting frame is provided with mounting holes; The test fixture also includes: Tighten the nut; The T-bolt is installed in the guide rail. One end of the T-bolt is slidably installed in the corresponding guide rail, and the other end passes through the mounting hole and is connected to the lock nut.

7. The test fixture according to claim 1, characterized in that, The bracket also includes a guide rail extending in the vertical direction; The lifting frame is provided with mounting holes; The test fixture also includes: A T-bolt, one end of which is slidably mounted inside the guide rail, and the other end extending beyond the mounting hole; A piston, the internal thread of which is threadedly connected to the T-bolt; A locking nut, which is connected to the external thread of the piston thread and is provided with a filling hole.

8. The test fixture according to claim 7, characterized in that, The bracket includes four vertically extending guide rails; The lifting frame is fitted around the four guide rails and includes at least four rows of mounting holes; One end of each of the T-bolts is slidably mounted within one of the four guide rails, and the other end extends beyond the corresponding mounting hole and is connected to the piston.

9. The test fixture according to claim 1, characterized in that, The rotation drive component is a rotary motor, and the output shaft of the rotary motor is connected to the rotating frame.

10. The test fixture according to claim 1, characterized in that, The rotary drive includes a rotary motor and a transmission gear. The output shaft of the rotary motor is connected to the transmission gear, and the transmission gear is connected to the rotating frame.

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