A refrigerator compressor crankshaft eccentricity gauge

Abstract

The utility model belongs to the technical field of crankshaft detection equipment, and disclose a refrigerator compressor crankshaft eccentricity gauge, including work table, the upper surface fixed connection of work table has the supporting plate, the outer fixed surface of supporting plate is connected with the slide rail, the outer surface fixed connection of electric sliding block that has of slide rail is connected with, electric sliding block's outer surface fixed connection has the mounting seat, the inside fixed connection of mounting seat has the motor, the output fixed connection of motor has the rotating shaft, the outer surface fixed connection of rotating shaft has the rotary lever, the rotary lever is fixedly connected with the mounting plate away from the one end of rotating shaft, the outer surface fixed connection of mounting plate has the clamp, the upper surface fixed connection of work table has the base, the upper surface fixed connection of base has the hydraulic cylinder, through the cooperation of slide rail, electric sliding block, mounting seat, motor, rotating shaft, clamp and rotary lever, can effectively clamp the work piece of different size and drive its rotation, drive work piece rotation can guarantee the even coverage and consistency of measuring point, ensure that eccentricity measurement is more accurate.

Description

Technical Field

[0001] This utility model belongs to the technical field of crankshaft testing equipment, specifically a crankshaft eccentricity measuring tool for refrigerator compressors. Background Technology

[0002] The crankshaft is a key component of the refrigerator compressor. It is used to transmit power and cooperates with the connecting rod to form a crank-connecting rod mechanism, which converts the rotational motion of the prime mover into the reciprocating motion of the piston. The accuracy of the crankshaft directly affects the performance of the refrigerator compressor, and the eccentricity of the crankshaft is an important indicator of the crankshaft accuracy. Therefore, it is necessary to test the eccentricity of the refrigerator compressor crankshaft.

[0003] Meanwhile, a crankshaft eccentricity measuring tool for a refrigerator compressor, with application number CN201520607569.4, includes a base plate and a column longitudinally fixed to the base plate. A dial indicator clamp is installed at the upper end of the column, horizontally positioned. The left end of the clamp is connected to the column, and the right end is equipped with a digital dial indicator with its detection section extending downwards. A V-shaped limiting block is also provided on the base plate, with an upward-opening V-groove at its upper end. The crankshaft to be tested is placed and fixed within the V-groove of the limiting block. The detection section of the digital dial indicator contacts the eccentric portion of the crankshaft. The crankshaft is rotated to find the lowest point of the eccentric portion, and the dial indicator is zeroed. The crankshaft is rotated in the original direction to find the highest point of the eccentric portion. The reading at the highest point is displayed and recorded. The data at the highest point divided by 2 is the crankshaft eccentricity. This method measures crankshaft eccentricity accurately, with low error, and is simple and easy to understand.

[0004] However, the following problems were found in the implementation of the relevant technology: it cannot ensure the stability of the crankshaft during the testing process, thus failing to ensure the accuracy of the measurement, and it cannot adapt to crankshafts with different belt sizes. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a refrigerator compressor crankshaft eccentricity measuring tool, which has the advantages of effectively clamping workpieces of different sizes and rotating the workpiece to ensure uniform coverage and consistency of measurement points, thereby ensuring more accurate eccentricity measurement.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a refrigerator compressor crankshaft eccentricity measuring tool, comprising a worktable, a support plate fixedly connected to the upper surface of the worktable, a slide rail fixedly connected to the outer surface of the support plate, an electric slider slidably connected to the slide rail, a mounting base fixedly connected to the outer surface of the electric slider, a motor fixedly connected inside the mounting base, a rotating shaft fixedly connected to the output end of the motor, a rotating rod fixedly connected to the outer surface of the rotating shaft, a mounting plate fixedly connected to the end of the rotating rod away from the rotating shaft, a clamp fixedly connected to the outer surface of the mounting plate, a base fixedly connected to the upper surface of the worktable, a hydraulic cylinder fixedly connected to the upper surface of the base, a push rod fixedly connected to the output end of the hydraulic cylinder, a fixing plate fixedly connected to the end of the push rod away from the hydraulic cylinder, and a measuring device fixedly connected to the upper surface of the fixing plate.

[0007] Preferably, the mounting base is provided with a groove, and the motor is located in the groove.

[0008] Preferably, a cover plate is fixedly connected to the outer surface of the groove, and the rotating rod is rotatably connected to the cover plate.

[0009] Preferably, the mounting base is provided with a heat dissipation window, and a filter screen is fixedly connected to the outer surface of the heat dissipation window.

[0010] Preferably, the two ends of the slide rail are fixedly connected to limit plates, and the limit plates are fixedly connected to the support plate.

[0011] Preferably, a collection box is fixedly connected to the outer surface of the workbench, and a partition is fixedly connected to the inner surface of the collection box.

[0012] Preferably, the partition divides the collection box into a qualified product storage room and a non-qualified product storage room.

[0013] Preferably, the clamp is an adjustable clamp, which can adjust the clamping force or clamping range according to items of different sizes and shapes, applicable to various scenarios, and improve process flexibility: meeting the different needs of different processes, improving the versatility and efficiency of the equipment. The clamp is equipped with a rubber pad to avoid scratching or deforming the items during clamping, and the rubber pad can increase friction to prevent the items from slipping.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model, through the cooperation of slide rail, electric slider, mounting base, motor, rotating shaft, clamp and rotating rod, can effectively clamp workpieces of different sizes and drive them to rotate. It is convenient for the inspection tool to be adapted to crankshafts or parts of different sizes, without the need for frequent replacement of inspection tools or complex adjustments, thus improving work efficiency. Driving the workpiece to rotate can ensure uniform coverage and consistency of measurement points, thereby ensuring more accurate measurement of eccentricity.

[0015] 2. This utility model uses a base, hydraulic cylinder, push rod, and fixing plate to lift the measuring device, thereby adapting it to workpieces of different heights and sizes. This facilitates accurate eccentricity measurement of workpieces of different heights, ensuring that the measuring surface and the maximum measuring point of the workpiece are in the optimal alignment position, reducing angular deviation and measurement error, and greatly enhancing the adaptability and measurement accuracy of the fixture. Attached Figure Description

[0016] Figure 1 This is a left-side view of the overall structure of this utility model; Figure 2 This is a right-side view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the support plate connection structure of this utility model; Figure 4 This is a schematic diagram of the internal structure of the mounting base of this utility model.

[0017] In the diagram: 1. Workbench; 2. Support plate; 3. Slide rail; 4. Electric slider; 5. Mounting base; 6. Motor; 7. Rotating shaft; 8. Rotating rod; 9. Mounting plate; 10. Fixture; 11. Base; 12. Hydraulic cylinder; 13. Push rod; 14. Fixing plate; 15. Measuring device; 16. Collection box; 17. Partition plate; 18. Cover plate; 19. Heat dissipation window. Detailed Implementation

[0018] 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.

[0019] like Figures 1 to 4As shown, this utility model provides a refrigerator compressor crankshaft eccentricity measuring tool, including a worktable 1, a support plate 2 fixedly connected to the upper surface of the worktable 1, a slide rail 3 fixedly connected to the outer surface of the support plate 2, an electric slider 4 slidably connected to the slide rail 3, driven and controlled by an electric system, a mounting base 5 fixedly connected to the outer surface of the electric slider 4, a motor 6 fixedly connected inside the mounting base 5, a rotating shaft 7 fixedly connected to the output end of the motor 6, a rotating rod 8 fixedly connected to the outer surface of the rotating shaft 7, a mounting plate 9 fixedly connected to the end of the rotating rod 8 away from the rotating shaft 7, a clamp 10 fixedly connected to the outer surface of the mounting plate 9, a base 11 fixedly connected to the upper surface of the worktable 1, a hydraulic cylinder 12 fixedly connected to the upper surface of the base 11, a push rod 13 fixedly connected to the output end of the hydraulic cylinder 12, a fixing plate 14 fixedly connected to the end of the push rod 13 away from the hydraulic cylinder 12, and a measuring device 15 fixedly connected to the upper surface of the fixing plate 14, specifically an eccentricity detection pointer, equipped with a high-precision dial indicator pointer-type measuring instrument.

[0020] Specifically, the mounting base 5 has a groove, and the motor 6 is located in the groove.

[0021] Furthermore, a cover plate 18 is fixedly connected to the outer surface of the groove, and the rotating rod 8 is rotatably connected to the cover plate 18.

[0022] Furthermore, the mounting base 5 is provided with a heat dissipation window 19, and a filter screen is fixedly connected to the outer surface of the heat dissipation window 19.

[0023] It is worth noting that the two ends of the slide rail 3 are fixedly connected to limit plates, and the limit plates are fixedly connected to the support plate 2.

[0024] It is worth noting that a collection box 16 is fixedly connected to the outer surface of the workbench 1, and a partition 17 is fixedly connected to the inner surface of the collection box 16.

[0025] It is worth mentioning that the partition 17 divides the collection box 16 into a qualified product storage room and a non-qualified product storage room.

[0026] It is worth emphasizing that the clamp 10 is specifically an adjustable clamp, and a rubber pad is provided on the clamp 10.

[0027] Among them, the motor 6, hydraulic cylinder 1, measuring device 15, and clamp 10 are existing technologies and will not be described in detail; at the same time, this utility model also includes a power supply, controller, and switch, etc., which are not the main technical points of this patent and will not be described in detail; the "front, back, left, and right" perspectives of this device are as follows: Figure 1 The direction shown in the diagram is the reference.

[0028] Working principle: In use, the electric slider 4 first slides on the slide rail 3 according to the size of the workpiece through the drive and control of the power system. The electric slider 4 raises the clamp 10 to a suitable height, and then the crankshaft is fixedly clamped by the clamp 10. Then, the hydraulic cylinder 12 on the base 11 pushes out the push rod 13, and the push rod 13 pushes out the fixing plate 14 and the measuring device 15, so that the height of the measuring device 15 corresponds to the crankshaft. Then, the motor 6 in the mounting base 5 drives the rotating shaft 7 to rotate, and the rotating shaft 7 drives the rotating rod 8 to rotate. The rotating rod 8 drives the clamp 10 and the crankshaft to rotate one revolution. Then, the reading change of the eccentricity detection pointer is observed step by step through the measuring device 15, and the maximum eccentricity distance, i.e., the eccentricity, is recorded. Multiple measurements can also be taken at different positions to ensure the accuracy of the eccentricity.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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 refrigerator compressor crankshaft eccentricity measuring tool, comprising a worktable (1), characterized in that: A support plate (2) is fixedly connected to the upper surface of the workbench (1). A slide rail (3) is fixedly connected to the outer surface of the support plate (2). An electric slider (4) is slidably connected to the slide rail (3). A mounting base (5) is fixedly connected to the outer surface of the electric slider (4). A motor (6) is fixedly connected inside the mounting base (5). A rotating shaft (7) is fixedly connected to the output end of the motor (6). A rotating rod (8) is fixedly connected to the outer surface of the rotating shaft (7). A mounting plate (9) is fixedly connected to the end of the rotating rod (8) away from the rotating shaft (7). A clamp (10) is fixedly connected to the outer surface of the mounting plate (9). A base (11) is fixedly connected to the upper surface of the workbench (1). A hydraulic cylinder (12) is fixedly connected to the upper surface of the base (11). A push rod (13) is fixedly connected to the output end of the hydraulic cylinder (12). A fixing plate (14) is fixedly connected to the end of the push rod (13) away from the hydraulic cylinder (12). A measuring device (15) is fixedly connected to the upper surface of the fixing plate (14).

2. The refrigerator compressor crankshaft eccentricity measuring tool according to claim 1, characterized in that: The mounting base (5) is provided with a groove, and the motor (6) is located in the groove.

3. The refrigerator compressor crankshaft eccentricity measuring tool according to claim 2, characterized in that: A cover plate (18) is fixedly connected to the outer surface of the groove, and the rotating rod (8) is rotatably connected to the cover plate (18).

4. The refrigerator compressor crankshaft eccentricity measuring tool according to claim 1, characterized in that: The mounting base (5) is provided with a heat dissipation window (19), and a filter screen is fixedly connected to the outer surface of the heat dissipation window (19).

5. A refrigerator compressor crankshaft eccentricity measuring tool according to claim 1, characterized in that: Limiting plates are fixedly connected to both ends of the slide rail (3), and the limiting plates are fixedly connected to the support plate (2).

6. The refrigerator compressor crankshaft eccentricity measuring tool according to claim 1, characterized in that: A collection box (16) is fixedly connected to the outer surface of the workbench (1), and a partition (17) is fixedly connected to the inner surface of the collection box (16).

7. A refrigerator compressor crankshaft eccentricity measuring tool according to claim 6, characterized in that: The partition (17) divides the collection box (16) into a qualified product storage room and an unqualified product storage room.

8. A refrigerator compressor crankshaft eccentricity measuring tool according to claim 1, characterized in that: The clamp (10) is specifically an adjustable clamp, and a rubber pad is provided on the clamp (10).

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