High-stability inertia disc testing device

Abstract

The utility model discloses a high-stability inertia disc testing device. The high-stability inertia disc testing device comprises a working table and a fixed clamping module arranged on the working table, the fixed clamping module is arranged at the edge of the top of the workbench and is composed of a quick clamp part and a fixing part, the fixing part is vertically arranged at the edge of the upper surface of the workbench, the quick clamp part is horizontally installed at the top end of the fixing part, and the clamping end of the quick clamp part is vertically arranged downwards; a distance is formed between the clamping end and the upper surface of the workbench, and the space between the clamping end and the upper surface of the workbench is a motor fixing area; the bottom of the rack is further provided with a buffering assembly used for shock absorption. According to the utility model, the clamping mechanism is combined with the high-rigidity workbench rack, so that the motor is effectively fixed, high-frequency vibration transmission is inhibited, the shafting movement risk caused by sudden inertia moment change in the start-stop stage is eliminated, the safety accident rate in the test process is reduced, the concentricity precision of the inertia disc and the motor shaft is ensured, and the test efficiency is improved. And the stability of the torque fluctuation coefficient is improved.

Description

Technical Field

[0001] This utility model relates to the field of motor testing, and in particular to a highly stable inertia disk testing device. Background Technology

[0002] In the fields of industrial automation and high-end equipment, large high-speed motors, as core power components, are widely used in CNC machine tools, aerospace drive systems, and precision manufacturing equipment. These motors must meet stringent performance indicators such as high torque density, high speed stability, and dynamic response accuracy. The load characteristic test before they leave the factory directly affects the reliability of the product and the operational safety of the terminal equipment. At present, the industry generally adopts the inertia simulation test method, which simulates the actual working load by attaching a standard inertia disk to the motor shaft end to verify the torque fluctuation, temperature rise characteristics, and dynamic balance performance of the motor within the rated speed range.

[0003] As a key tooling device, the inertia disk used for testing typically has technical requirements such as a size larger than the motor rotor (typically with a diameter of over 300 mm), strict mass load (20 ± 0.5 kg), and precise rotational inertia (0.3 ± 0.01 kg·m²). However, when the motor enters the high-speed testing phase (typical speed 16000 rpm), the rotating assembly formed by the inertia disk and the motor rotor will generate a centrifugal force exceeding 2000 N·m, and the dynamic imbalance of the system can reach the micrometer level. In the existing technology, the inertia disk mainly relies on flange bolt pre-tightening and locating pins to achieve axial fixation. However, under the action of high-frequency alternating loads, the traditional connection method is prone to slight displacement, leading to the deterioration of the system's dynamic characteristics. More seriously, during the motor start-up and shutdown phase, the sudden change in the inertial torque of the rotating body will trigger unsteady vibration. If the fixing device fails to effectively suppress shaft runout, it may cause major safety accidents such as coupling damage and bearing overload failure, endangering the personal safety of operators and the integrity of precision testing equipment.

[0004] There is currently a gap in the existing technology for dynamic clamping of heavy-duty, high-inertia systems. There is an urgent need to develop a highly reliable clamping system to ensure the safety of the factory testing process and the accuracy of the test data for high-speed motors. Utility Model Content

[0005] The main objective of this invention is to provide a highly stable inertia disk testing device, thereby solving all or one of the aforementioned problems in the prior art.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing a highly stable inertia disk testing device, comprising:

[0007] A workbench and a fixed clamping module mounted on the workbench;

[0008] The fixed clamping module is located at the edge of the top of the workbench. The fixed clamping module consists of a quick clamping part and a fixing part. The fixing part is vertically located at the edge of the upper surface of the workbench. The quick clamping part is horizontally installed at the top of the fixing part. The clamping end of the quick clamping part is vertically downward and there is a distance between the clamping end and the upper surface of the workbench. The space between the clamping end and the upper surface of the workbench is the motor fixing area.

[0009] The bottom of the frame is also equipped with a shock-absorbing buffer assembly.

[0010] As an improved solution, the inertia disk testing device further includes: a testing motor;

[0011] The test motor is horizontally positioned on the upper surface of the workbench corresponding to the fixed clamping module, and the output end of the test motor is located on one side outside the workbench.

[0012] The output of the test motor is used to connect to the inertia disk to be installed.

[0013] As an improved solution, the quick clamping unit includes: a base, a pressing member, and a handle;

[0014] The base is vertically mounted on the upper surface of the fixing part, and the top of the base is provided with an upper hinge hole and a lower hinge hole side by side; the upper hinge hole is located on the side of the base away from the worktable, and the lower hinge hole is located on the side of the base closer to the worktable.

[0015] The handle is vertically mounted on the base, and the lower end of the handle is hinged to the lower hinge hole.

[0016] The pressing member is horizontally disposed on the base, and the lower end of the pressing member is hinged to the upper hinge hole, and the upper end of the pressing member is the clamping end; the lower end of the handle is provided with a clearance groove corresponding to the position of the pressing member and the base, the lower end of the pressing member passes through the clearance groove, and the intersection position of the pressing member and the handle is rotatably connected to each other.

[0017] When the handle is in a vertical position, the pressing member is in a horizontal position, and the quick clamp is in a locked position.

[0018] When the handle is in a horizontal position, the pressing member is in a vertical position, and the quick clamp is in an unlocked position.

[0019] As an improved solution, when the pressing member is in a horizontal state, a vertically arranged limiting rod is installed at the lower end of the pressing member, and the lower end of the limiting rod is the clamping end;

[0020] When the pressing component is in a horizontal state, the lower end of the limiting rod is set close to the upper surface of the test motor.

[0021] As an improvement, a horizontally positioned anti-slip pad is also installed at the lower end of the limiting rod.

[0022] As an improved solution, the fixing part is a solid component, and the height of the fixing part matches the thickness of the test motor.

[0023] As an improved solution, the worktable includes: a frame and a support plate;

[0024] The frame is installed on the ground and is a rectangular frame.

[0025] The support plate is horizontally mounted on the upper surface of the frame;

[0026] The fixing clamping module is fixed to the edge of the upper surface of the bearing plate.

[0027] As an improved solution, four foot cups are vertically connected to the four corners of the bottom of the frame, and the four foot cups serve as the cushioning components.

[0028] As an improvement, shock-absorbing pads are attached to the bottom of all four foot cups.

[0029] As an improved solution, the crossbeams and vertical beams of the frame are respectively made of hollow metal frames;

[0030] or,

[0031] The crossbeams and vertical beams of the frame are made of solid metal.

[0032] The beneficial effects of this utility model are:

[0033] This invention can effectively fix the motor and suppress the transmission of high-frequency vibration by using a clamping mechanism combined with a high-rigidity workbench frame. It eliminates the risk of shaft movement caused by sudden changes in inertia moment during the start-up and shutdown phases, reduces the safety accident rate during the testing process, and at the same time ensures the concentricity accuracy of the inertia disk and the motor shaft, improves the stability of the torque fluctuation coefficient, and significantly improves the reliability and data accuracy of the factory test of heavy-duty large-inertia motors. Attached Figure Description

[0034] Figure 1 This is a three-dimensional structural schematic diagram of a high-stability inertia disk testing device according to an embodiment of this utility model;

[0035] The components in the attached diagram are labeled as follows:

[0036] 1. Frame; 2. Bearing plate; 3. Fixing part; 4. Base; 5. Lower pressing part; 6. Handle; 7. Upper hinge hole; 8. Lower hinge hole; 9. Test motor; 10. Inertia disk to be installed; 11. Foot cup; 12. Anti-slip pad; 13. Limiting rod. Detailed Implementation

[0037] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the scope of protection of the present invention.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments.

[0043] Please see Figure 1 The embodiments of this utility model include:

[0044] A highly stable inertia disk testing device includes: a worktable and a fixed clamping module and a test motor 9 mounted on the worktable;

[0045] As one embodiment of this utility model, the workbench includes: a frame 1 and a support plate 2; the frame 1 is installed on the ground and is a rectangular frame; preferably, the crossbeams and vertical beams of the frame 1 are hollow metal frames; or, in other embodiments, the crossbeams and vertical beams of the frame 1 may also be solid metal frames; in addition, the support plate 2 is horizontally installed on the upper surface of the frame 1; the fixed clamping module is fixed at the edge of the upper surface of the support plate 2; the frame 1 and the support plate 2 constitute the main load-bearing components of this device; in order to further improve stability, four feet 11 are vertically connected at the four corners of the bottom of the frame 1, and the four feet 11 serve as buffer components, with shock-absorbing pads attached to the bottom of each of the four feet 11, further improving the shock resistance of this device.

[0046] In one embodiment of this utility model, the test motor 9 is horizontally positioned on the upper surface of the workbench corresponding to the fixed clamping module, and the output end of the test motor 9 is located on one side outside the workbench; the output end of the test motor 9 is used to connect to the inertia disk 10 to be installed.

[0047] As one embodiment of this utility model, the fixed clamping module consists of a quick clamping part and a fixed part 3. The fixed part 3 is vertically disposed at the edge of the upper surface of the workbench, and the quick clamping part is horizontally installed at the top of the fixed part 3. The clamping end of the quick clamping part is vertically downward and there is a distance between the clamping end and the upper surface of the workbench. The space between the clamping end and the upper surface of the workbench is the motor fixing area, and the aforementioned test motor 9 is located in this position.

[0048] More specifically, the quick clamping unit includes: a base 4, a lowering member 5, and a handle 6; the base 4 is vertically mounted on the upper surface of the fixing part 3, and the top of the base 4 has an upper hinge hole 7 and a lower hinge hole 8 arranged side by side; the upper hinge hole 7 is located on the side of the base 4 away from the worktable, and the lower hinge hole 8 is located on the side of the base 4 closer to the worktable; the upper hinge hole 7 is positioned higher than the lower hinge hole 8; the handle 6 is vertically mounted on the base 4, and the lower end of the handle 6 is hinged to the lower hinge hole 8; the lowering member 5 is horizontally mounted on the base 4, and the lower end of the lowering member 5 is hinged to the upper hinge hole 7, and the upper end of the lowering member 5 is the aforementioned clamping end; the actual structure of the quick clamping unit is a heavy-duty quick clamp, therefore, the lower end of the handle 6 is provided with a clearance groove corresponding to the position of the lowering member 5 and the base 4, and the lowering member... The lower end of the pressure member 5 is actually inserted into the clearance groove, and the overlapping and intersecting positions of the pressure member 5 and the handle 6 are rotatably connected to each other, that is, they are hinged to each other. Through the above position and connection relationship, when the handle 6 is in the vertical state, the pressure member 5 is in the horizontal state, and the quick clamp is in the locked state; when the handle 6 is in the horizontal state, the pressure member 5 is in the vertical state, and the quick clamp is in the unlocked state; when the quick clamp is in the locked state, the test motor 9 is fixed on the support plate 2; in addition, a limit rod 13 is installed at the lower end of the pressure member 5. When the pressure member 5 is in the horizontal state, the limit rod 13 is in the vertical state, and the lower end of the limit rod 13 is the aforementioned clamping end; when the pressure member 5 is in the horizontal state, the lower end of the limit rod 13 is set close to the upper surface of the test motor 9, thereby pressing and clamping the test motor 9 with the support plate 2.

[0049] More specifically, to further enhance the fixing effect, a horizontally positioned anti-slip pad 12 is also installed at the lower end of the limiting rod 13.

[0050] More specifically, in order to further enhance the stabilizing effect, the fixing part 3 can be a solid component, and in order to ensure a good clamping effect, the height of the fixing part 3 is matched with the thickness of the test motor 9.

[0051] More specifically, to further expand its applicability, the lower end of the pressing component 5 is provided with a mounting hole corresponding to the position of the limiting rod 13. The limiting rod 13 is threaded along its length. The limiting rod 13 passes through the mounting hole, and bolts are installed at its upper and lower ends respectively. Through the cooperation of the upper and lower bolts and their threads, the limiting rod 13 is fixed to the lower end of the pressing component 5. Figure 1The middle part is the left side of the lower pressure part 5. When the size of the motor changes, the bolt can be loosened, the limit rod 13 can be raised (or lowered), and then the bolt can be tightened. This allows the lower end of the limit rod 13 to be moved away from (or closer to) the test motor 9, thereby enabling the limit rod 13 to be adapted to a thicker (or thinner) test motor 9.

[0052] In summary, this device uses heavy-duty quick clamps to clamp the motor and inertia disk onto the frame 1, achieving excellent stability and facilitating the use of heavy-duty inertia disks for motor inertia testing.

[0053] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structure made using the contents of this utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A highly stable inertia disk testing device, characterized in that, include: A workbench and a fixed clamping module mounted on the workbench; The fixed clamping module is located at the edge of the top of the workbench. The fixed clamping module consists of a quick clamping part and a fixing part (3). The fixing part (3) is vertically located at the edge of the upper surface of the workbench. The quick clamping part is horizontally installed at the top of the fixing part (3). The clamping end of the quick clamping part is vertically downward and there is a distance between the clamping end and the upper surface of the workbench. The space between the clamping end and the upper surface of the workbench is the motor fixing area. The bottom of the frame (1) is also provided with a shock-absorbing buffer assembly.

2. The high-stability inertia disk testing device according to claim 1, characterized in that: The inertia disk testing device also includes: a test motor (9). The test motor (9) is horizontally positioned on the upper surface of the workbench corresponding to the fixed clamping module, and the output end of the test motor (9) is located on one side outside the workbench. The output end of the test motor (9) is used to connect to the inertia disk (10) to be installed.

3. The high-stability inertia disk testing device according to claim 2, characterized in that: The quick clamping part includes: a base (4), a pressing member (5), and a handle (6); The base (4) is vertically installed on the upper surface of the fixing part (3). The top of the base (4) is provided with an upper hinge hole (7) and a lower hinge hole (8) side by side. The upper hinge hole (7) is located on the side of the base (4) away from the worktable, and the lower hinge hole (8) is located on the side of the base (4) close to the worktable. The handle (6) is vertically mounted on the base (4), and the lower end of the handle (6) is hinged to the lower hinge hole (8). The pressing member (5) is horizontally disposed on the base (4), and the lower end of the pressing member (5) is hinged to the upper hinge hole (7), and the upper end of the pressing member (5) is the clamping end; the lower end of the handle (6) is provided with a clearance groove corresponding to the position of the pressing member (5) and the base (4), the lower end of the pressing member (5) passes through the clearance groove, and the intersection position of the pressing member (5) and the handle (6) is rotatably connected to each other; When the handle (6) is in a vertical state, the pressing member (5) is in a horizontal state, and the quick clamp is in a locked state; When the handle (6) is in a horizontal state, the pressing member (5) is in a vertical state, and the quick clamp is in an unlocked state.

4. The high-stability inertia disk testing device according to claim 3, characterized in that: When the pressing member (5) is in a horizontal state, a vertically arranged limiting rod (13) is installed at the lower end of the pressing member (5), and the lower end of the limiting rod (13) is the clamping end; When the pressing member (5) is in a horizontal state, the lower end of the limiting rod (13) is set close to the upper surface of the test motor (9).

5. The high-stability inertia disk testing device according to claim 4, characterized in that: The lower end of the limiting rod (13) is also equipped with a horizontally set anti-slip pad (12).

6. The high-stability inertia disk testing device according to claim 2, characterized in that: The fixing part (3) is a solid component, and the height of the fixing part (3) matches the thickness of the test motor (9).

7. The high-stability inertia disk testing device according to claim 1, characterized in that: The workbench includes: a frame (1) and a support plate (2); The frame (1) is installed on the ground and is a rectangular frame. The support plate (2) is horizontally mounted on the upper surface of the frame (1); The fixed clamping module is fixed to the edge of the upper surface of the bearing plate (2).

8. The high-stability inertia disk testing device according to claim 7, characterized in that: The four corners of the bottom of the frame (1) are vertically connected to foot cups (11), and the four foot cups (11) serve as the buffer components.

9. The high-stability inertia disk testing device according to claim 8, characterized in that: The bottom of each of the four foot cups (11) is fitted with a shock-absorbing pad.

10. The high-stability inertia disk testing device according to claim 7, characterized in that: The crossbeams and vertical beams of the frame (1) are respectively made of hollow metal frames; or, The crossbeams and vertical beams of the frame (1) are made of solid metal.

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