Overpressure detection device for belleville spring

Abstract

The invention is suitable for the technical field of spring detection, and provides a belleville spring overpressure detection device which comprises a detection frame. The detection frame comprises a fixing ring; a rotating disc is rotationally arranged on the inner wall of the fixing ring; a plurality of bearing parts are uniformly and fixedly mounted on the surface of the rotating disc; a C-shaped conical table is fixed to the top of the supporting plate. A lifting part in sliding fit with each two adjacent lug plates is arranged on the outer wall of the detection table in a sliding manner; a rotating part coaxial with the detection table is rotationally arranged on the detection table; according to the device, the plurality of bearing parts are driven by the rotating disc to circularly work, so that continuous and multi-station detection is realized, and the batch detection time is greatly shortened; and a mechanical self-locking structure in which the pawl is matched with the ratchet is adopted, so that the pressure is stable and not relaxed in the pressure maintaining stage, the lifting part is automatically locked in the pressure maintaining stage, the pressure is prevented from returning, and the accuracy of detection data is ensured.

Description

Technical Field

[0001] This invention relates to the field of spring detection technology, and more specifically, to a device for detecting overpressure of disc springs. Background Technology

[0002] Disc springs are elastic elements widely used in machinery, aerospace, and automotive industries, characterized by high load-bearing capacity, minimal deformation, and compact structure. In practical applications, disc springs must undergo overpressure testing to assess their fatigue life, stability, and reliability.

[0003] Traditional overpressure testing methods are mostly single-station, piece-by-piece testing, meaning that only one disc spring can be loaded, held, unloaded, and its deformation measured at a time. This results in low testing efficiency and heavy reliance on manual operation, making it difficult to achieve automated batch testing. Furthermore, most existing testing devices lack effective pressure holding and automatic reset control mechanisms, making them prone to pressure relaxation or displacement rebound during the pressure holding process, affecting the accuracy of the test results. Therefore, there is an urgent need for a disc spring overpressure testing device that can achieve multi-station continuous operation, a high degree of automation, and good testing stability. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide an overpressure detection device for disc springs. This device utilizes a rotating disk to drive multiple bearing components in a cyclical operation, enabling continuous, multi-station testing. This significantly shortens batch testing time, allowing multiple disc springs to be pressurized, held, and reset sequentially at the same testing station. The device eliminates the need to wait for a single spring to complete its full testing before proceeding to the next, greatly optimizing the testing process and improving efficiency. The device employs a mechanical self-locking structure with a pawl and ratchet mechanism to ensure stable pressure during the holding phase and automatically locks the lifting mechanism during this phase to prevent pressure retraction, ensuring accurate test data.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A device for detecting overpressure of disc springs includes a detection frame; the detection frame includes a fixed ring; a rotating disk is rotatably disposed on the inner wall of the fixed ring; a plurality of bearing portions are uniformly fixedly mounted on the surface of the rotating disk; each bearing portion includes an annular plate; a plurality of support plates are uniformly fixedly disposed on the surface of the annular plate; a C-shaped conical platform is fixedly disposed on the top of the support plate; the bearing portion further includes a detection platform coaxially disposed with the annular plate; a guide post adapted to the disc spring is fixedly disposed on the surface of the detection platform; ear plates are fixed between the detection platform and each end of the C-shaped conical platform; a lifting portion is slidably disposed on the outer wall of the detection platform, which slidably engages with each pair of adjacent ear plates; a rotating portion coaxially disposed on the detection platform; and a pawl portion adapted to the lifting portion is rotatably disposed on the rotating portion.

[0006] The invention is further configured such that: the detection frame also includes a base; a U-shaped plate is fixed to the surface of the base; a fixing ring is fixedly installed on both sides of the inner wall of the U-shaped plate; an annular groove is formed on the inner wall of the fixing ring; an annular rail that rotates with the annular groove is fixed to the outer wall of the rotating disk; a servo motor is fixedly installed on the surface of the base; and the output end of the servo motor is fixedly connected to the bottom surface of the rotating disk.

[0007] The invention is further configured such that: a controller is fixedly installed on the side of the U-shaped plate; a plurality of annular bearing disks that are inserted and cooperate with the corresponding annular plates are uniformly fixed on the surface of the rotating disk; a plurality of positioning bolts are uniformly fixed on the inner bottom surface of the annular bearing disks; a fastening nut is screwed onto the positioning bolt; and a plurality of positioning holes that are inserted and cooperate with the corresponding positioning bolts are uniformly opened on the surface of the annular plate.

[0008] The invention is further configured such that: a slide rail is fixed on the outer wall of the testing platform between two corresponding adjacent ear plates; the lifting part includes a pressure ring that slides with the guide column; a plurality of lifting plates that slide with the corresponding adjacent ear plates are uniformly fixed on the outer wall of the pressure ring; and a sliding groove that slides with the slide rail is provided on the side of the lifting plate.

[0009] The invention is further configured such that: the rotating part includes a sliding seat adapted to the C-shaped conical truncated platform; the top and bottom surfaces of the sliding seat are provided with limiting grooves coaxial with the C-shaped conical truncated platform; the top and bottom of the C-shaped conical truncated platform are fixed with limiting rails adapted to the corresponding limiting grooves.

[0010] The invention is further configured such that: a conical toothed ring is fixed to the bottom surface of the sliding seat; a conical toothed ring is rotatably disposed on the surface of the annular plate; an L-shaped plate is fixed to the surface of the fixed ring; a stepper motor electrically connected to the output end of the controller is fixedly mounted on the top of the L-shaped plate; a driving gear is fixed to the output end of the stepper motor; a driven toothed ring that meshes with the driving gear is fixed to the inner wall of the conical toothed ring; a rotating rod is rotatably disposed through the side of the support plate; and a bevel gear that meshes with the conical toothed ring and the conical toothed ring is fixed to the end of the rotating rod.

[0011] The invention is further configured such that: extension plates are fixed on both opposite sides of the sliding seat; a rotating shaft is fixed between the two extension plates; an arc-shaped tube coaxial with the rotating shaft is fixed on the inner wall of the sliding seat; the pawl portion includes a connecting post; a bushing cooperating with the rotating shaft is fixed inside the connecting post; a pawl coaxial with the bushing is fixed on the outer wall of the connecting post; a plurality of ratchet teeth coaxial with the bushing are evenly fixed from top to bottom on the other opposite side of the lifting plate; an arc-shaped rod slidingly cooperating with the arc-shaped tube is fixed on the outer wall of the ratchet teeth; and an arc-shaped spring is connected between the end of the arc-shaped rod and the arc-shaped tube.

[0012] The invention is further configured such that: a mounting groove is provided on the side of the U-shaped plate; an electric push rod electrically connected to the output end of the controller is fixedly installed on the bottom surface of the mounting groove; a mounting plate is fixed to the telescopic end of the electric push rod; a lead screw is threaded through the mounting plate; a stop bar is fixed to the end of the lead screw; an infrared rangefinder is fixed to the bottom surface of the mounting groove; an electric hydraulic cylinder electrically connected to the output end of the controller is installed on the top of the U-shaped plate; a fixing plate is fixed to the output end of the electric hydraulic cylinder; a plurality of extension rods are uniformly fixed to the bottom surface of the fixing plate; and an annular pressure plate that slides with the guide column is fixed between the ends of each extension rod.

[0013] The advantages of this invention are: This invention enables continuous, multi-station inspection by rotating a disk to drive multiple bearing components in a cyclical operation, significantly shortening batch inspection time. Multiple disc springs can be sequentially pressurized, held, and reset at the same inspection station without waiting for a single piece to complete the entire inspection process before proceeding to the next piece, greatly optimizing the inspection process and improving inspection efficiency.

[0014] This invention employs a mechanical self-locking structure with a pawl and ratchet mechanism to ensure stable and unslackened pressure during the pressure holding phase. It also automatically locks the lifting mechanism during the pressure holding phase to prevent pressure back and ensure accurate test data. Furthermore, by combining a stepper motor, an electric hydraulic cylinder, and an infrared rangefinder, it achieves fully automatic control of pressure application, reset, and deformation measurement, reducing human error. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an overpressure detection device for a disc spring according to the present invention.

[0016] Figure 2 This is a schematic diagram of the disc spring before overpressure detection according to the present invention.

[0017] Figure 3 For the present invention Figure 2 Enlarged view of region A.

[0018] Figure 4 For the present invention Figure 2 A structural diagram from a frontal viewpoint.

[0019] Figure 5 This is a schematic diagram of the detection frame of the present invention.

[0020] Figure 6 For the present invention Figure 5 A structural diagram from a right-view perspective.

[0021] Figure 7 This is a schematic diagram of the structure of the support portion of the present invention.

[0022] Figure 8 For the present inventionFigure 7 Enlarged view of region B.

[0023] Figure 9 This is a schematic diagram of the lifting part of the present invention.

[0024] Figure 10 This is a schematic diagram of the rotating part of the present invention.

[0025] Figure 11 This is a schematic diagram of the pawl portion of the present invention.

[0026] In the diagram: 1. Inspection frame; 2. Fixing ring; 3. Rotating disk; 4. Bearing part; 5. Annular plate; 6. Support plate; 7. C-shaped cone; 8. Inspection table; 9. Disc spring; 10. Guide column; 11. Ear plate; 12. Lifting part; 13. Rotating part; 14. Pawl part; 15. Base; 16. U-shaped plate; 17. Servo motor; 18. Controller; 19. Bearing disk; 20. Positioning bolt; 21. Positioning hole; 22. Slide rail; 23. Pressure ring; 24. Lifting plate; 25. Slide groove; 26. Sliding seat; 27. Limiting groove; 28. Limiting rail; 29. ​​Conical gear ring; 30. Conical gear ring; 31. L-shaped plate; 32. Stepper motor; 33. Drive gear; 34. Rotating rod; 35. Bevel gear; 36. Extension plate; 37. Rotating shaft; 38. Arc-shaped tube; 39. Connecting column; 40. Bushing; 41. Pawl; 42. Racket; 43. Arc-shaped rod; 44. Mounting groove; 45. Electric push rod; 46. Mounting plate; 47. Lead screw; 48. Stop bar; 49. Infrared rangefinder; 50. Electric hydraulic cylinder; 51. Fixing plate; 52. Extension rod; 53. Annular pressure plate. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this invention, unless otherwise stated, the directional terms such as "up" and "down" generally refer to the directions shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" generally refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not intended to limit this invention.

[0030] Example 1, please refer to Figures 1-11 The present invention provides the following technical solutions: A device for detecting overpressure of disc springs, specifically comprising a detection frame 1; the detection frame 1 includes a fixing ring 2; a rotating disk 3 is rotatably disposed on the inner wall of the fixing ring 2; a plurality of bearing portions 4 are uniformly fixedly mounted on the surface of the rotating disk 3; the bearing portion 4 includes an annular plate 5; a plurality of support plates 6 are uniformly fixedly disposed on the surface of the annular plate 5; a C-shaped conical platform 7 is fixedly disposed on the top of the support plate 6; the bearing portion 4 also includes a detection platform 8 coaxially disposed with the annular plate 5; a guide post 10 adapted to the disc spring 9 is fixedly disposed on the surface of the detection platform 8; ear plates 11 are fixed between the detection platform 8 and each end of the C-shaped conical platform 7; a lifting portion 12 is slidably disposed on the outer wall of the detection platform 8, which slidably engages with each pair of adjacent ear plates 11; a rotating portion 13 coaxially disposed on the detection platform 8; a pawl portion 14 adapted to the lifting portion 12 is rotatably disposed on the rotating portion 13.

[0031] Working principle of this embodiment: By sequentially fitting each set of disc springs 9 onto the guide post 10, and then fitting the lifting part 12 onto the guide post 10, with the pressure ring 23 placed on the uppermost disc spring 9, the pressure ring 23 is controlled to slide downwards to apply pressure to the disc spring 9. During the sliding descent of the lifting part 12, the lifting part 12 is not limited by the pawl part 14 on the rotating part 13. After each set of disc springs 9 is flattened, the pressure on the disc spring 9 is completed. Due to the setting of the pawl part 14, the lifting part 12 cannot rise to reset, thereby maintaining pressure on the disc spring 9. Stable pressure is applied, and then the rotating disk 3 is controlled to rotate, so that the bearing part 4 that has completed the pressure application rotates away from the detection station, and the adjacent bearing parts 4 to be pressured rotate to the detection station. The pressure application operation of multiple sets of overpressure detection is completed in sequence. After the pressure application is completed, the disc spring 9 inside each set of bearing parts 4 is held for a period of time before the pressure is released, which facilitates the subsequent overpressure detection. There is no need to wait for one set of bearing parts 4 to complete the overpressure detection before the next set of bearing monitoring can be carried out, realizing continuous, multi-station detection and greatly shortening the batch detection time.

[0032] Example 2, please refer to Figures 1-11 This second embodiment is an improvement on the first embodiment as follows: Specifically, the detection frame 1 further includes a base 15; a U-shaped plate 16 is fixed on the surface of the base 15; a fixing ring 2 is fixedly installed on both sides of the inner wall of the U-shaped plate 16; an annular groove is opened on the inner wall of the fixing ring 2; an annular rail that rotates with the annular groove is fixed on the outer wall of the rotating disk 3; a servo motor 17 is fixedly installed on the surface of the base 15; the output end of the servo motor 17 is fixedly connected to the bottom surface of the rotating disk 3.

[0033] By controlling the start servo motor 17, the rotating disk 3 can be driven to rotate, thereby driving the position change of each group of bearing parts 4.

[0034] A controller 18 is fixedly installed on the side of the U-shaped plate 16; several annular bearing plates 19 that are inserted and matched with the corresponding annular plates 5 are evenly fixed on the surface of the rotating disk 3; several positioning bolts 20 are evenly fixed on the inner bottom surface of the annular bearing plates 19; fastening nuts are screwed onto the positioning bolts 20; several positioning holes 21 that are inserted and matched with the corresponding positioning bolts 20 are evenly opened on the surface of the annular plate 5.

[0035] By inserting the annular plate 5 into the corresponding annular bearing plate 19, inserting the corresponding positioning screw 20 into the corresponding positioning hole 21, and tightening the fastening nut, the fixed assembly of the bearing part 4 and the rotating plate 3 is completed.

[0036] The outer wall of the testing table 8 is fixed with slide rails 22 between the two adjacent ear plates 11; the lifting part 12 includes a pressure ring 23 that slides with the guide column 10; a number of lifting plates 24 that slide with the two adjacent ear plates 11 are evenly fixed on the outer wall of the pressure ring 23; the side of the lifting plate 24 is provided with a slide groove 25 that slides with the slide rail 22.

[0037] The rotating part 13 includes a sliding seat 26 adapted to the C-shaped conical platform 7; the top and bottom surfaces of the sliding seat 26 are provided with limiting grooves 27 coaxial with the C-shaped conical platform 7; the top and bottom of the C-shaped conical platform 7 are fixed with limiting rails 28 adapted to the corresponding limiting grooves 27.

[0038] A conical toothed ring 29 is fixed to the bottom surface of the sliding seat 26; a conical toothed ring 30 is rotatably mounted on the surface of the annular plate 5; an L-shaped plate 31 is fixed to the surface of the fixed ring 2; a stepper motor 32 electrically connected to the output terminal of the controller 18 is fixedly mounted on the top of the L-shaped plate 31; a drive gear 33 is fixed to the output terminal of the stepper motor 32; a driven toothed ring that meshes with the drive gear 33 is fixed to the inner wall of the conical toothed ring 30; a rotating rod 34 is rotatably mounted through the side of the support plate 6; a bevel gear 35 that meshes with the conical toothed ring 30 and the conical toothed ring 29 is fixed to the end of the rotating rod 34.

[0039] The sliding seat 26 has extension plates 36 fixed on both opposite sides; a rotating shaft 37 is fixed between the two extension plates 36; an arc-shaped tube 38 coaxial with the rotating shaft 37 is fixed on the inner wall of the sliding seat 26; the pawl part 14 includes a connecting post 39; a bushing 40 that rotatably engages with the rotating shaft 37 is fixed inside the connecting post 39; a pawl 41 coaxial with the bushing 40 is fixed on the outer wall of the connecting post 39; a number of ratchet teeth 42 coaxial with the bushing 40 are evenly fixed from top to bottom on the other opposite side of the lifting plate 24; an arc-shaped rod 43 that slidably engages with the arc-shaped tube 38 is fixed on the outer wall of the ratchet teeth 42; an arc-shaped spring is connected between the end of the arc-shaped rod 43 and the arc-shaped tube 38.

[0040] A mounting groove 44 is provided on the side of the U-shaped plate 16; an electric push rod 45 electrically connected to the output terminal of the controller 18 is fixedly installed on the bottom surface of the mounting groove 44; a mounting plate 46 is fixed to the telescopic end of the electric push rod 45; a lead screw 47 is threaded through the mounting plate 46; a stop bar 48 is fixed to the end of the lead screw 47; an infrared rangefinder 49 is fixed to the bottom surface of the mounting groove 44; an electric cylinder 50 electrically connected to the output terminal of the controller 18 is installed on the top of the U-shaped plate 16; a fixing plate 51 is fixed to the output end of the electric cylinder 50; several extension rods 52 are evenly fixed to the bottom surface of the fixing plate 51; an annular pressure plate 53 that slides with the guide column 10 is fixed between the ends of each extension rod 52.

[0041] Working principle of this embodiment two: Slide each set of disc springs 9 into the guide post 10, slide the pressure ring 23 on the lifting part 12 into the guide post 10, and place the pressure ring 23 on the top of the uppermost disc spring 9. Control the start stepper motor 32 to drive the drive gear 33 to rotate, thereby driving the driven gear ring meshing with it to rotate, and then driving the conical gear ring 30 to rotate. Through each set of bevel gears 34, drive the corresponding conical gear ring 29 to rotate, thereby driving each set of rotating parts 13 together with the corresponding pawl part 14 to rotate, so that the pawl 41 rotates into the upper part of the corresponding ratchet 42 to match it, completing the assembly of the lifting part 12 and the pawl part 14. In this state, the arc spring is in the normal state, and the pawl 41 is placed at the corner where the lifting plate 24 and the corresponding ratchet 42 are connected.

[0042] Rotate the lead screw 47 to move it toward the pressure ring 23, and control the start electric push rod 45 to drive the stop rod 48 to rise and fall until the stop rod 48 is in contact with the top of the pressure ring 23. At this time, the height measured by the infrared rangefinder 49 is the initial height.

[0043] The control start electric cylinder 50 drives the annular pressure plate 53 to descend and insert into the guide column 10. As the annular pressure plate 53 continues to descend, it gradually approaches and squeezes the pressure ring 23. The descent of the pressure ring 23 squeezes the disc springs 9 below. During this process, the descent of the ratchet 42 drives the pawl 41 to swing, and the corresponding arc spring is stretched. When the pawl 41 disengages from the corresponding ratchet 42, the elastic reset action of the arc spring drives the pawl 41 to rotate in the opposite direction to reset. Therefore, during the descent of the lifting part 12, the pawl part 14 does not limit the lifting part 12. When the disc springs 9 are flattened, the control start electric cylinder 50 drives the annular pressure plate 53 to rise and reset. Due to the cooperation between the pawl 41 and the corresponding ratchet 42, the ratchet 42 cannot rise. Therefore, the stability of the pressure applied by the pressure ring 23 to the disc springs 9 is maintained. During the pressure holding stage, the lifting part 12 is automatically locked to prevent pressure back and ensure accurate detection data.

[0044] Controlling the rotation of the rotating disk 3 causes each set of bearing parts 4, which are positioned below the annular pressure plate 53 to apply pressure, to rotate and disengage. Adjacent bearing parts 4 rotate and are positioned directly below the annular pressure plate 53. This process is repeated to sequentially apply pressure to the disc springs 9 inside each set of bearing parts 4. After each set of disc springs 9 has been pressed and left to stand for a period of time, the rotating disk 3 is controlled to rotate the bearing parts 4 to directly below the annular pressure plate 53. The electric hydraulic cylinder 50 is then controlled to lower the annular pressure plate 53 to engage with the corresponding pressure ring. The stepper motor 32 is then started, driving the drive gear 33 to rotate. Through the combined action of the driven gear ring, conical gear ring 30, bevel gear 35, and conical gear ring 29, the rotating part 13 is driven forward. The rotation of the pawl 41 causes it to rotate along the outer wall of the corresponding ratchet 42. When the pawl 41 disengages from the corresponding ratchet 42, the pawl part 14 releases the limit on the lifting part 12. The electric cylinder 50 is controlled to drive the annular pressure plate 53 to slowly rise and reset. Under the elastic reset action of the disc spring 9, the pressure ring 23 rises. When the annular pressure plate 53 disengages from the surface of the pressure ring 23 and the pressure ring 23 stops, the electric push rod 45 is controlled to drive the stop rod 48 to descend to fit the pressure ring 23. At this time, the height measured by the infrared rangefinder 49 is the detection height of the disc spring 9 after reset after overpressure detection. By comparing the initial height with the detection height, the reset detection of the disc spring 9 after overpressure detection is completed.

[0045] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

[0046] 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.

[0047] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0048] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

[0049] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A device for detecting overpressure of a disc spring, comprising a detection frame (1); characterized in that: The testing frame (1) includes a fixing ring (2); a rotating disk (3) is rotatably disposed on the inner wall of the fixing ring (2); and several bearing parts (4) are uniformly fixedly installed on the surface of the rotating disk (3). The bearing part (4) includes an annular plate (5); several support plates (6) are uniformly fixed on the surface of the annular plate (5); a C-shaped conical platform (7) is fixed on the top of the support plate (6); the bearing part (4) also includes a detection platform (8) coaxially arranged with the annular plate (5); a guide column (10) adapted to the disc spring (9) is fixed on the surface of the detection platform (8); ear plates (11) are fixed between the detection platform (8) and both ends of each C-shaped conical platform (7); The outer wall of the testing platform (8) is slidably provided with a lifting part (12) that slides and cooperates with each of the two adjacent ear plates (11); the testing platform (8) is rotatably provided with a rotating part (13) that is coaxial with it; the rotating part (13) is rotatably provided with a pawl part (14) that is adapted to the lifting part (12).

2. The overpressure detection device for disc springs according to claim 1, characterized in that: The testing frame (1) also includes a base (15); a U-shaped plate (16) is fixed on the surface of the base (15); a fixing ring (2) is fixedly installed on both sides of the inner wall of the U-shaped plate (16); an annular groove is opened on the inner wall of the fixing ring (2); an annular rail that rotates with the annular groove is fixed on the outer wall of the rotating disk (3); a servo motor (17) is fixedly installed on the surface of the base (15); the output end of the servo motor (17) is fixedly connected to the bottom surface of the rotating disk (3).

3. The overpressure detection device for disc springs according to claim 2, characterized in that: A controller (18) is fixedly installed on the side of the U-shaped plate (16); a number of annular bearing plates (19) that are inserted into and cooperate with the corresponding annular plate (5) are evenly fixed on the surface of the rotating disk (3); a number of positioning bolts (20) are evenly fixed on the inner bottom surface of the annular bearing plate (19); a fastening nut is screwed onto the positioning bolt (20); a number of positioning holes (21) that are inserted into and cooperate with the corresponding positioning bolts (20) are evenly opened on the surface of the annular plate (5).

4. The overpressure detection device for disc springs according to claim 3, characterized in that: The outer wall of the testing platform (8) is fixed with slide rails (22) between the corresponding adjacent ear plates (11); the lifting part (12) includes a pressure ring (23) that slides with the guide column (10); the outer wall of the pressure ring (23) is evenly fixed with a number of lifting plates (24) that slide with the corresponding adjacent ear plates (11); the side of the lifting plate (24) is provided with a slide groove (25) that slides with the slide rail (22).

5. The overpressure detection device for a disc spring according to claim 4, characterized in that: The rotating part (13) includes a sliding seat (26) adapted to the C-shaped conical platform (7); the top and bottom surfaces of the sliding seat (26) are provided with limiting grooves (27) coaxial with the C-shaped conical platform (7); the top and bottom surfaces of the C-shaped conical platform (7) are fixed with limiting rails (28) adapted to the corresponding limiting grooves (27).

6. The overpressure detection device for a disc spring according to claim 5, characterized in that: A conical toothed ring (29) is fixed to the bottom surface of the sliding seat (26); a conical toothed ring (30) is rotatably provided on the surface of the annular plate (5); an L-shaped plate (31) is fixed to the surface of the fixed ring (2); a stepper motor (32) electrically connected to the output end of the controller (18) is fixedly installed on the top of the L-shaped plate (31); a drive gear (33) is fixed to the output end of the stepper motor (32); a driven toothed ring that meshes with the drive gear (33) is fixed to the inner wall of the conical toothed ring (30); a rotating rod (34) is rotatably provided through the side of the support plate (6); a bevel gear (35) that meshes with the conical toothed ring (30) and the conical toothed ring (29) is fixed to the end of the rotating rod (34).

7. The overpressure detection device for a disc spring according to claim 6, characterized in that: The sliding seat (26) has extension plates (36) fixed on both opposite sides; a rotating shaft (37) is fixed between the two extension plates (36); and an arc-shaped tube (38) coaxial with the rotating shaft (37) is fixed on the inner wall of the sliding seat (26). The pawl part (14) includes a connecting post (39); a bushing (40) that rotates and engages with the rotating shaft (37) is fixed inside the connecting post (39); a pawl (41) coaxial with the bushing (40) is fixed on the outer wall of the connecting post (39); a number of ratchet teeth (42) coaxial with the bushing (40) are evenly fixed from top to bottom on the other opposite side of the lifting plate (24); an arc-shaped rod (43) that slides and engages with the arc-shaped tube (38) is fixed on the outer wall of the ratchet teeth (42); an arc-shaped spring is connected between the end of the arc-shaped rod (43) and the arc-shaped tube (38).

8. The overpressure detection device for a disc spring according to claim 7, characterized in that: The U-shaped plate (16) has a mounting groove (44) on its side; an electric push rod (45) electrically connected to the output end of the controller (18) is fixedly installed on the bottom surface of the mounting groove (44); a mounting plate (46) is fixed to the telescopic end of the electric push rod (45); a lead screw (47) is threaded through the mounting plate (46); a stop bar (48) is fixed to the end of the lead screw (47); an infrared rangefinder (49) is fixed to the bottom surface of the mounting groove (44); an electric cylinder (50) electrically connected to the output end of the controller (18) is installed on the top of the U-shaped plate (16); a fixing plate (51) is fixed to the output end of the electric cylinder (50); a number of extension rods (52) are evenly fixed to the bottom surface of the fixing plate (51); an annular pressure plate (53) that slides with the guide column (10) is fixed between the ends of each extension rod (52).

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