A long shaft support structure of an elongated shaft transmission test platform

Abstract

The utility model relates to the technical field of slender axle drive test, especially to a long axle support structure of slender axle drive test platform, including experimental platform main part, the one end outside fixed setting of experimental platform main part has transmission mechanism, the side of experimental platform main part and transmission mechanism correspondingly is provided with support block, the outside fixed connection of support block has clamping pipe, be provided with adjusting mechanism between support block and experimental platform main part, adjusting mechanism includes firm board, the outside fixed connection of firm board has motor, the output fixed connection of motor has screw rod, the outside screw thread connection of screw rod has moving block, the inside of firm board has moved groove, in the utility model, through the motor drive screw rod rotation in adjusting mechanism, drive moving block along the sliding of moving groove, can easily adjust the position of support block and clamping pipe, need not manual repeatedly debugging, not only save operation time, can guarantee the accuracy of position adjustment.

Description

Technical Field

[0001] This utility model relates to the field of slender shaft transmission testing technology, specifically to a long shaft support structure for a slender shaft transmission testing platform. Background Technology

[0002] In modern industry, slender shafts are core components in mechanical equipment for power transmission, precision positioning and motion control. They are widely used in high-end equipment fields such as aerospace, shipbuilding, precision machine tools and automobile manufacturing. For example, in the rotor system of aero-engines, the propulsion shaft system of ships and the ball screw transmission mechanism of precision CNC machine tools, the transmission accuracy, stability and reliability of slender shafts directly determine the operating performance and service life of the whole machine. To ensure the safe and stable operation of slender shafts under actual working conditions, it is necessary to conduct precise tests on their transmission characteristics (such as torque transmission efficiency and speed response characteristics), dynamic performance (such as vibration amplitude and critical speed), and reliability (such as fatigue life and wear patterns) through a slender shaft transmission test platform. As the core component of the test platform, the rationality of the design and the quality of the performance of the long shaft support structure directly affect the accuracy of the test data and the safety of the test process. Traditional slender shaft drive test platforms often employ a fixed installation method for their long shaft support structure. This means that the support blocks are directly fixed to the main body of the test platform with bolts. If it is necessary to adapt to slender shafts of different lengths or installation positions, the bolts must be manually removed, the support block positions adjusted, and then retightened. This process has significant drawbacks. Manual adjustment requires repeated measurement and calibration of the support block positions, and each adjustment is time-consuming. Especially when testing multiple specifications of slender shafts in batches, the cumulative time increases significantly, severely reducing test efficiency. At the same time, manual operation is easily affected by subjective factors such as the operator's experience and hand strength, making it difficult to guarantee the accuracy of the support block positions. The accuracy defects of traditional adjustment methods directly lead to distorted test data, which cannot accurately reflect the actual performance of the slender shafts.

[0003] Therefore, a long shaft support structure for a slender shaft transmission test platform is proposed to address the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a long shaft support structure for a slender shaft transmission test platform to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A long shaft support structure for a slender shaft transmission test platform includes a test platform body, a transmission mechanism fixedly installed on the outer side of one end of the test platform body, a support block installed on the side of the test platform body corresponding to the transmission mechanism, a clamping tube fixedly connected to the outer side of the support block, and an adjustment mechanism installed between the support block and the test platform body. The adjustment mechanism includes a stabilizing plate, a motor is fixedly connected to the outside of the stabilizing plate, a lead screw is fixedly connected to the output end of the motor, a moving block is threaded to the outside of the lead screw, a moving groove is opened inside the stabilizing plate, and a disassembly mechanism is provided between the moving block and the support block. The disassembly mechanism includes a movable tube, a snap-fit ​​rod is movably connected inside the movable tube, a compression spring is sleeved on the snap-fit ​​rod, a connecting groove is opened in the side wall of the support block, and an installation rod is fixedly connected to the outside of the movable block, with a positioning hole opened in the side wall of the installation rod.

[0006] As a further optimization of this utility model, the transmission mechanism includes a starter, the output end of which is fixedly connected to a transmission pipe, a limit rod is fixedly connected to the outer side of the support block, and a sliding groove is provided inside the stabilizing plate.

[0007] As a further optimization of this utility model, the stabilizing plate is fixedly connected to the outside of the main body of the experimental platform, and the lead screw is rotatably connected to the inside of the moving groove.

[0008] As a further optimization of this utility model, the movable block is slidably connected inside the movable groove, and the outer side of the movable block is in close contact with the inner wall of the movable groove.

[0009] As a further optimization of this utility model, the support block is installed on the outside of the movable block through the cooperation of the mounting rod and the connecting groove, and the movable tubes are symmetrically distributed on the outside of the support block.

[0010] As a further optimization of this utility model, the locking rod passes through the inner wall of the support block, and one end of the locking rod is locked inside the positioning hole.

[0011] As a further optimization of this utility model, the starter is fixedly connected to the outside of the main body of the experimental platform, and the transmission tube and the clamping tube are on the same plane.

[0012] Compared with the prior art, the beneficial effects of this utility model are: In this invention, the position of the support block and clamping tube can be easily adjusted by rotating the lead screw driven by the motor in the adjustment mechanism, which in turn drives the moving block to slide along the moving groove. This eliminates the need for repeated manual adjustments, saving operation time and ensuring the accuracy of position adjustment. It can adapt to slender shafts of different lengths and installation positions, solving the problem that traditional support structures have fixed positions and are difficult to adapt to slender shafts of various specifications. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2This is a schematic diagram of the outer structure of the adjustment mechanism of this utility model; Figure 3 This is a schematic diagram of the outer structure of the disassembly mechanism of this utility model; Figure 4 This is a schematic diagram of the outer side of the support block of this utility model; Figure 5 This utility model Figure 1 Enlarged view of the structure at point A in the middle; Figure 6 This utility model Figure 3 Enlarged view of the structure at point B.

[0014] In the diagram: 1. Main body of the experimental platform; 2. Transmission mechanism; 21. Starter; 22. Transmission pipe; 3. Support block; 31. Clamping pipe; 4. Adjustment mechanism; 41. Stabilizing plate; 42. Motor; 43. Lead screw; 44. Moving block; 45. Moving groove; 46. Limiting rod; 47. Slide groove; 5. Disassembly mechanism; 51. Movable pipe; 52. Snap-fit ​​rod; 53. Compression spring; 54. Connecting groove; 55. Mounting rod; 56. Positioning hole. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0017] Please see Figures 1-6 This utility model provides a technical solution: A long shaft support structure for a slender shaft transmission test platform includes a test platform body 1, a transmission mechanism 2 fixedly installed on the outer side of one end of the test platform body 1, a support block 3 installed on the side of the test platform body 1 corresponding to the transmission mechanism 2, a clamping tube 31 fixedly connected to the outer side of the support block 3, and an adjustment mechanism 4 installed between the support block 3 and the test platform body 1. The adjustment mechanism 4 includes a stabilizing plate 41, a motor 42 is fixedly connected to the outside of the stabilizing plate 41, a lead screw 43 is fixedly connected to the output end of the motor 42, a moving block 44 is threadedly connected to the outside of the lead screw 43, a moving groove 45 is opened inside the stabilizing plate 41, and a disassembly mechanism 5 is provided between the moving block 44 and the support block 3. The disassembly mechanism 5 includes a movable tube 51, a snap-fit ​​rod 52 is movably connected inside the movable tube 51, a compression spring 53 is sleeved on the snap-fit ​​rod 52, a connecting groove 54 is opened in the side wall of the support block 3, and an installation rod 55 is fixedly connected to the outside of the movable block 44, and a positioning hole 56 is opened in the side wall of the installation rod 55.

[0018] It should be noted that: the stabilizing plate 41 is fixedly connected to the outside of the experimental platform body 1, the lead screw 43 is rotatably connected to the inside of the moving groove 45, the moving block 44 is slidably connected to the inside of the moving groove 45, and the outside of the moving block 44 is in close contact with the inner wall of the moving groove 45. The support block 3 is installed on the outside of the moving block 44 through the cooperation of the mounting rod 55 and the connecting groove 54. The movable tube 51 is symmetrically distributed on the outside of the support block 3. The snap-fit ​​rod 52 passes through the inner wall of the support block 3, and one end of the snap-fit ​​rod 52 is snapped into the inside of the positioning hole 56. Furthermore, the starter 21 in the transmission mechanism 2 is not an ordinary drive motor, but a servo motor with stepless speed regulation function. Its speed regulation range can cover 0-10000r / min, which can accurately simulate the actual speed requirements of the slender shaft under different working conditions. Specifically: The support block 3 is made of one-piece molded aluminum alloy, which ensures structural rigidity and bending strength ≥200MPa while effectively reducing its own weight and the load on the adjustment mechanism 4. The clamping tube 31 is connected to the support block 3 by flange bolts, and clamping tubes 31 with different inner diameters can be replaced according to test requirements; Furthermore: the lead screw 43 in the adjustment mechanism 4 is made of high-precision ball screw to ensure that the displacement accuracy of the moving block 44 meets the test requirements. The inner wall of the moving groove 45 is precision ground with a surface roughness Ra≤0.8μm. The clearance between the moving groove 45 and the moving block 44 is controlled between 0.005-0.01mm, which can ensure the smooth sliding of the moving block 44 and effectively limit its radial wobble. As a further implementation of this solution, the transmission mechanism 2 includes a starter 21, the output end of the starter 21 is fixedly connected to a transmission pipe 22, the outer side of the support block 3 is fixedly connected to a limit rod 46, and the inside of the stabilizing plate 41 is provided with a sliding groove 47. It should be noted that: the starter 21 is fixedly connected to the outside of the experimental platform body 1, the transmission tube 22 and the clamping tube 31 are on the same plane, and the limiting rod 46 is slidably connected inside the slide groove 47.

[0019] Furthermore, the disassembly mechanism 5 has a non-slip handle at the end of the locking rod 52. The handle surface is textured with non-slip material, making it easy for the operator to pull manually. The handle and locking rod 52 are connected by threads, and different sizes of handles can be replaced according to the operator's hand size to improve operating comfort. The compression spring 53 is made of stainless steel, which has good corrosion resistance and fatigue life, with a service life of ≥10,000 compression cycles, ensuring that it can still provide stable restoring force after long-term use.

[0020] Workflow: In the initial assembly stage, the support block 3 is first connected to the moving block 44 in the adjustment mechanism 4 through the disassembly mechanism 5. Specifically, the mounting rod 55 on the outside of the moving block 44 is aligned with the connecting groove 54 on the side wall of the support block 3 and inserted. At this time, the snap-fit ​​rod 52 in the movable tube 51 automatically passes through the inner wall of the support block 3 and is snapped into the positioning hole 56 of the mounting rod 55 under the return force of the compression spring 53, thus completing the stable assembly of the support block 3 and the moving block 44. At the same time, the limiting rod 46 on the outside of the support block 3 will be embedded in the sliding groove 47 of the stabilizing plate 41 in the adjustment mechanism 4, which will guide the subsequent movement. When the support position needs to be adjusted according to the specifications of the slender shaft, the motor 42 on the outside of the stabilizing plate 41 in the adjustment mechanism 4 is activated. The output end of the motor 42 drives the lead screw 43 to rotate in the moving groove 45 of the stabilizing plate 41. Since the moving block 44 is threadedly connected to the lead screw 43 and slides against the inner wall of the moving groove 45, the rotation of the lead screw 43 is converted into the linear movement of the moving block 44 along the moving groove 45. The sliding engagement between the limit rod 46 and the slide groove 47 can prevent the support block 3 from shifting, ensuring that the moving block 44 drives the support block 3 and the outer clamping tube 31 accurately. Move to the appropriate position; during the transmission test phase, the transmission mechanism 2 at one end of the main body 1 of the experimental platform starts to work. The starter 21 in the transmission mechanism 2 drives the transmission tube 22 at the output end to rotate. Since the transmission tube 22 and the clamping tube 31 are on the same plane, after one end of the slender shaft to be tested is fixed in the transmission tube 22 and the other end is stably clamped by the clamping tube 31, the rotational power of the transmission tube 22 can be smoothly transmitted to the slender shaft. At the same time, the support block 3 forms a reliable support for the slender shaft through the clamping tube 31, avoiding bending or axis drift during high-speed rotation. When maintenance or replacement of support block 3 and clamping tube 31 is required, simply pull the snap-fit ​​rod 52 in the disassembly mechanism 5 manually to compress the spring 53 and disengage it from the positioning hole 56 of the mounting rod 55. At this time, support block 3 can be removed along the direction of mounting rod 55 to complete the disassembly operation. After maintenance or replacement is completed, repeat the initial assembly steps to put it back into use. The whole process realizes the coordinated work of precise adjustable support position, stable transmission of slender shaft and convenient disassembly and assembly of components.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A long shaft support structure for a slender shaft transmission test platform, comprising the main body of the test platform (1), characterized in that: A transmission mechanism (2) is fixedly installed on the outer side of one end of the experimental platform body (1). A support block (3) is installed on the side of the experimental platform body (1) corresponding to the transmission mechanism (2). A clamping tube (31) is fixedly connected to the outer side of the support block (3). An adjustment mechanism (4) is installed between the support block (3) and the experimental platform body (1). The adjustment mechanism (4) includes a stabilizing plate (41), a motor (42) is fixedly connected to the outside of the stabilizing plate (41), a lead screw (43) is fixedly connected to the output end of the motor (42), a moving block (44) is threadedly connected to the outside of the lead screw (43), a moving groove (45) is provided inside the stabilizing plate (41), and a disassembly mechanism (5) is provided between the moving block (44) and the support block (3). The disassembly mechanism (5) includes a movable tube (51), a snap-fit ​​rod (52) is movably connected inside the movable tube (51), a compression spring (53) is sleeved on the snap-fit ​​rod (52), a connecting groove (54) is opened in the side wall of the support block (3), and an installation rod (55) is fixedly connected to the outside of the moving block (44), and a positioning hole (56) is opened in the side wall of the installation rod (55).

2. The long shaft support structure of a slender shaft transmission test platform according to claim 1, characterized in that: The transmission mechanism (2) includes a starter (21), the output end of which is fixedly connected to a transmission tube (22), a limit rod (46) is fixedly connected to the outside of the support block (3), and a sliding groove (47) is provided inside the stabilizing plate (41).

3. The long shaft support structure of a slender shaft transmission test platform according to claim 1, characterized in that: The stabilizing plate (41) is fixedly connected to the outside of the experimental platform body (1), and the lead screw (43) is rotatably connected to the inside of the moving groove (45).

4. The long shaft support structure of a slender shaft transmission test platform according to claim 1, characterized in that: The movable block (44) is slidably connected inside the movable groove (45), and the outer side of the movable block (44) is in close contact with the inner wall of the movable groove (45).

5. The long shaft support structure of a slender shaft transmission test platform according to claim 1, characterized in that: The support block (3) is installed on the outside of the movable block (44) by the cooperation of the mounting rod (55) and the connecting groove (54), and the movable tube (51) is symmetrically distributed on the outside of the support block (3).

6. The long shaft support structure of a slender shaft transmission test platform according to claim 1, characterized in that: The locking rod (52) passes through the inner wall of the support block (3), and one end of the locking rod (52) is locked inside the positioning hole (56).

7. The long shaft support structure of a slender shaft transmission test platform according to claim 2, characterized in that: The starter (21) is fixedly connected to the outside of the experimental platform body (1), the transmission tube (22) and the clamping tube (31) are on the same plane, and the limiting rod (46) is slidably connected inside the slide groove (47).

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