Disc spring spinning tool for torsion-limiting shock absorber

Abstract

The invention discloses a disc spring spinning tool for a torsion limiting damper. The disc spring spinning tool comprises a bottom plate, a mounting plate, a ball screw pair, a centering disc, a ratchet wheel, a driving disc, a pressing claw disc and a reset elastic piece. The bottom plate limits the flywheel disc and is provided with a top ring; the mounting plate is connected with an external pressing mechanism and connected with a centering disc through a ball screw pair, and a first inclined face is arranged on the centering disc. The ratchet wheel is connected with the mounting plate, the ratchets face downwards, and the second inclined faces on the ratchets can abut against the first inclined faces. The driving disc is connected with the centering disc, a pawl is arranged below the driving disc and can be clamped between the two disc spring clamping jaws, and the centering disc and the driving disc can rotate and move downwards on the mounting plate. The pressing claw disc is rotationally arranged on the centering disc and limited by the abutting ring, and a pressing block is arranged below the pressing claw disc to press the disc spring clamping claw, so that the disc spring clamping claw is lower than the flywheel clamping claw. And the pawl drives the disc spring clamping jaw to rotate and is clamped below the flywheel clamping jaw. According to the tool, disc spring installation can be completed only by pressing the installation plate downwards, high efficiency and convenience are achieved, and the installation efficiency of the disc spring and the torsion limiting damper is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of production equipment for automobile transmission systems, and in particular to a tool for installing a disc spring of a torque limiting vibration damper. Background Art

[0002] Torque-limited shock absorbers are an important part of the automobile transmission system, mainly composed of a vibration reduction unit and a torque-limited structure. Especially with the popularity of hybrid vehicles, more torque-limited shock absorbers are gradually being used by major OEMs. In the installation process of torque-limited shock absorbers, the installation of the torque-limited structure is particularly critical, especially for some special-structured torque-limited shock absorbers, which require pressing the disc spring and driving the disc spring to rotate a certain angle so that the disc spring claw can be stuck into the flywheel claw of the flywheel disc. At present, there are no special tools to complete the spinning installation of disc springs, making the production of disc springs and torque-limited shock absorbers more difficult and inefficient. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a disc spring spinning tool for a torque limiting vibration damper, which can quickly and conveniently complete the installation of the disc spring.

[0004] According to an embodiment of the present invention, a torsion limiting vibration damper disc spring spinning tool comprises: a base plate, a mounting plate, a ball screw pair, a centering plate, a ratchet, a driving plate, a pressure claw plate and a reset elastic member, the base plate is used to limit the flywheel plate, and a top ring is provided on the base plate; the mounting plate is used to be connected to an external downward pressure mechanism, the lower surface of the mounting plate is connected to the centering plate through the ball screw pair, the upper surface of the centering plate is provided with a plurality of first inclined surfaces; the ratchet is connected to the mounting plate and is coaxially arranged with the centering plate, all ratchet teeth on the ratchet are arranged downward, the lower surface of the ratchet teeth is a second inclined surface, and the second inclined surface is used to abut against the first inclined surface; the driving plate is connected to the centering plate, and the lower surface of the driving plate is provided with a plurality of ratchets, and the plurality of ratchets are evenly distributed on a circle with the rotation axis of the centering plate as the center and the same radius, and the ratchets are used to clamp into two adjacent disc springs on the disc spring. The cam is provided with a plurality of pressure blocks, and the plurality of pressure blocks are evenly distributed on a circle with the same radius and the rotation axis of the centering disk as the center, and the pressure blocks are located on the outside of the pawl, and the pressure blocks are used to press down the disc spring claw, and the second inclined surface presses down the first inclined surface, and the pressure blocks press down the disc spring claw so that the disc spring claw is lower than the flywheel claw of the flywheel disk, and the centering disk and the driving disk rotate and move downward, and the pawl drives the disc spring claw to rotate and clamp the disc spring claw under the flywheel claw; a reset elastic member is provided between the mounting plate and the centering disk, and the reset elastic member is used to drive the centering disk and the driving disk to rotate in the opposite direction and move upward.

[0005] At least the following beneficial effects are achieved: First fix the base plate, connect the mounting plate to the external pressing mechanism, and then place the torque limiting vibration damper on the base plate. The pressing mechanism drives the mounting plate to move downward, and the driving plate moves downward while rotating, driving the multiple disc spring claws of the disc spring to rotate through the multiple ratchets on it. At the same time, the multiple pressure blocks on the pressure claw plate press down the disc spring claws, causing the disc spring claws to move downward and rotate until they are respectively stuck under the multiple flywheel claws of the flywheel disc, thereby realizing the spinning installation of the disc spring. The installation of the disc spring can be completed by only pressing down the mounting plate, which is convenient and quick, effectively improving the installation efficiency of the disc spring and the torque limiting vibration damper, and reducing labor costs.

[0006] According to some embodiments of the present invention, a plurality of limit columns are further included, a plurality of through holes are provided on the mounting plate, the plurality of through holes are evenly distributed on a circle with the rotation axis of the centering disk as the center and the same radius, the limit columns are passed through the through holes and connected to the pressure claw disk.

[0007] According to some embodiments of the present invention, a plurality of thrust elastic members are further included, wherein the thrust elastic members are arranged between the mounting plate and the pressure claw plate, and the thrust elastic members are used to force the pressure claw plate to move downward.

[0008] According to some embodiments of the present invention, the limiting column is a bolt, the threaded section of the bolt is threadedly connected to the pressure claw disk, the thrust elastic member is a thrust spring, the thrust spring is sleeved on the bolt, and the two ends of the thrust spring respectively abut against the lower surface of the mounting plate and the upper surface of the pressure claw disk.

[0009] According to some embodiments of the present invention, a plurality of ball plungers are further included, the second inclined surface is provided with a mounting hole, the ball plungers are passed through the mounting hole, and the ball head structure of the ball plungers is used to abut against the first inclined surface.

[0010] According to some embodiments of the present invention, the ball screw pair includes a screw, an inner spiral groove structure and a plurality of balls, the screw is provided with an outer spiral groove structure, the screw is vertically arranged on the lower surface of the mounting plate, the inner spiral groove structure is arranged on the centering disk, the centering disk is sleeved on the screw, and the plurality of balls are arranged between the inner spiral groove structure and the outer spiral groove structure.

[0011] According to some embodiments of the present invention, a retaining spring is provided at the lower end of the lead screw, and the retaining spring can abut against the lower surface of the centering disk to limit the centering disk on the lead screw.

[0012] According to some embodiments of the present invention, a plurality of circumferentially distributed limiting grooves are provided on the lower surface of the centering disk, a longitudinal section of the limiting grooves is an inverted right-angled trapezoid, and a side surface of the limiting grooves is the first inclined surface.

[0013] According to some embodiments of the present invention, a limiting notch is provided in an area of ​​the lower surface of the pressing block close to the centering disk, and an inner wall of the limiting notch is used to abut against an outer edge of the disc spring claw.

[0014] According to some embodiments of the present invention, a pad is connected to the bottom of the base plate, and a plurality of positioning pins are provided on the base plate, and the positioning pins are used to be inserted into positioning holes on the flywheel disc to limit the rotation of the flywheel disc.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 is a structural schematic diagram of a torque limiting vibration damper; Figure 2 for Figure 1 A local enlarged schematic diagram of the middle A; Figure 3 It is a structural schematic diagram of an embodiment of the present invention; Figure 4 A schematic diagram of a half-section structure of an embodiment of the present invention; Figure 5 for Figure 4 A partial enlarged schematic diagram of point B in the middle; Figure 6 It is a schematic structural diagram of a mounting plate, a ratchet and a lead screw according to an embodiment of the present invention; Figure 7 It is a schematic structural diagram of the inner spiral groove structure, the centering plate and the driving plate of an embodiment of the present invention; Figure 8 It is a schematic structural diagram of a driving disc and a pressing claw disc according to an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of a bottom plate according to an embodiment of the present invention; Figure Number: Flywheel disc 10, flywheel claw 11; Disc spring 20, disc spring claw 21; Bottom plate 100, top ring 110, positioning pin 111, backing plate 120; Mounting plate 200, through hole 210, adapter plate 220; Ball screw pair 300, screw 310, retaining spring 311, inner spiral groove structure 320, ball 330; Centering plate 400, first inclined surface 410, bearing 420, limiting groove 430; Ratchet 500, ratchet teeth 510, second inclined surface 511, ball plunger 520; A driving disc 600 and a ratchet 610; Claw plate 700, pressing block 710; Reset elastic member 800; Limiting column 900 and thrust elastic member 910 . DETAILED DESCRIPTION

[0017] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In the description of the present invention, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0019] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0020] Reference Figure 1 and Figure 2 , is a torque limiting vibration damper, including a flywheel disc 10 and a disc spring 20. The outer edge of one side of the flywheel disc 10 is provided with a plurality of flywheel claws 11, and the plurality of flywheel claws 11 are evenly distributed on a circle with the rotation axis of the flywheel disc 10 as the center and the same radius. The flywheel claw 11 is a hook portion, and the outer edge of the disc spring 20 is provided with a plurality of disc spring claws 21, and the plurality of disc spring claws 21 are evenly distributed on a circle with the rotation axis of the disc spring 20 as the center and the same radius. The plurality of disc spring claws 21 are all tilted toward the upper side of the disc spring 20. When installing the disc spring 20, it is necessary to press down the disc spring claw 21 so that the disc spring claw 21 is lower than the flywheel claw 11. The disc spring 20 can be driven to rotate a certain angle to move the disc spring claw 21 to the bottom of the flywheel claw 11.

[0021] Reference Figure 3 and Figure 4 The present invention discloses a torsion-limiting vibration damper disc spring spinning tool, including: a base plate 100, a mounting plate 200, a ball screw pair 300, a centering plate 400, a ratchet 500, a driving plate 600, a pressure claw plate 700 and a reset elastic member 800.

[0022] The bottom plate 100 is used to limit the flywheel disc 10. A top ring 110 is provided on the bottom plate 100. The bottom plate 100 is fixed to an external device such as the ground or a rack, and then the torque limiting vibration damper is placed on the bottom plate 100, so that the flywheel disc 10 is limited on the bottom plate 100.

[0023] The mounting plate 200 is used to connect with an external pressing mechanism. The lower surface of the mounting plate 200 is connected with a centering plate 400 through a ball screw pair 300. The centering plate 400 can be raised or lowered while rotating on the mounting plate 200. The upper surface of the centering plate 400 is provided with a plurality of first inclined surfaces 410, and the plurality of first inclined surfaces 410 are evenly distributed on a circle with the same radius and the rotation axis of the centering plate 400 as the center.

[0024] Reference Figure 4 , Figure 6 and Figure 7The ratchet 500 is annular, connected to the lower surface of the mounting plate 200, and coaxially arranged with the centering disk 400. All the ratchet teeth 510 on the ratchet 500 are arranged downward, and the lower surface of the ratchet teeth 510 is a second inclined surface 511. Multiple second inclined surfaces 511 are evenly distributed on a circle with the rotation axis of the centering disk 400 as the center and the same radius. The second inclined surface 511 is used to abut against the first inclined surface 410. The second inclined surface 511 and the first inclined surface 410 are parallel to each other, and the second inclined surface 511 and the first inclined surface 410 can achieve one-to-one matching. Reference Figure 4 , Figure 5 , Figure 7 and Figure 8 The driving disk 600 is annular, connected to the centering disk 400, and the driving disk 600 and the centering disk 400 are coaxially arranged. The driving disk 600 and the centering disk 400 will achieve synchronous movement. A plurality of ratchets 610 are provided on the lower surface of the driving disk 600. The plurality of ratchets 610 are evenly distributed on a circle with the rotation axis of the centering disk 400 as the center and the same radius. The ratchet 610 is used to clamp between two adjacent disc spring claws 21 on the disc spring 20. Reference Figure 4 and Figure 8 The claw plate 700 is annular, and the claw plate 700 can be rotatably arranged on the centering plate 400, that is, when the centering plate 400 and the driving plate 600 rotate, the claw plate 700 can not rotate with the rotating centering plate 400 and the driving plate 600, and the claw plate 700 and the centering plate 400 are coaxially arranged. The claw plate 700 can abut against the upper surface of the top ring 110. The lower surface of the claw plate 700 is provided with a plurality of pressing blocks 710, and the plurality of pressing blocks 710 are evenly distributed on a circle with the rotation axis of the centering plate 400 as the center and the same radius, and the pressing blocks 710 are located outside the ratchet 610, that is, the circle formed by the plurality of pressing blocks 710 is larger than the circle formed by the plurality of ratchet 610, when the driving plate 600 carries the plurality of ratchet 610 to rotate, the claw plate 700 and the plurality of pressing blocks 710 thereon will not interfere with the driving plate 600 and the plurality of ratchet 610 thereon.

[0025] Reference Figure 5 and Figure 8 The pressing block 710 is used to press down the disc spring claw 21, and the second inclined surface 511 presses down the first inclined surface 410. The pressing block 710 presses down the disc spring claw 21 so that the disc spring claw 21 is lower than the flywheel claw 11 of the flywheel disc 10, and the centering disc 400 and the driving disc 600 rotate and move downward, and the pawl 610 drives the disc spring claw 21 to rotate and make the disc spring claw 21 clamped under the flywheel claw 11.

[0026] The resetting elastic member 800 is disposed between the mounting plate 200 and the centering disk 400 , and the resetting elastic member 800 is used to drive the centering disk 400 and the driving disk 600 to rotate in the opposite direction and move upward.

[0027] Initially, the base plate 100 is fixed on the ground or external equipment such as a rack, the mounting plate 200 is connected to the external pressing mechanism, the mounting plate 200, the ball screw pair 300, the centering plate 400, the ratchet 500, the driving plate 600, the pressure claw plate 700 and the reset elastic member 800 are all above the base plate 100, the reset elastic member 800 is in a natural state, and the ratchet 500 is above the centering plate 400.

[0028] The torque limiting vibration damper is placed on the base plate 100 , and the pressing mechanism drives the mounting plate 200 to move downward, and the ball screw pair 300 , the centering plate 400 , the ratchet 500 , the driving plate 600 , the pressure claw plate 700 and the reset elastic member 800 all move downward along with the mounting plate 200 . The second inclined surface 511 presses down the first inclined surface 410, so that the ratchet 500 drives the centering plate 400 to rotate, and under the action of the ball screw pair 300, the centering plate 400 realizes simultaneous rotation and downward movement, the reset elastic member 800 deforms and accumulates force, and the centering plate 400 drives the driving plate 600 to rotate and move downward, so that the pawl 610 moves to the area between two adjacent disc spring claws 21. At the same time, multiple pressure blocks 710 abut against multiple disc spring claws 21 and drive multiple disc spring claws 21 to move downward until multiple disc spring claws 21 are lower than multiple flywheel claws 11, and the pawl 610 starts to drive the disc spring claw 21 and the disc spring 20 to rotate. At this time, the disc spring claw 21 is pressed down and driven to rotate, so that the multiple disc spring claws 21 are respectively stuck under the multiple flywheel claws 11, that is, the spinning and installation of the disc spring 20 are completed.

[0029] Finally, the pressing mechanism drives the mounting plate 200 to move upward, the pressure block 710 disengages from the disc spring claw 21, and the pawl 610 disengages from the area between the two adjacent disc spring claws 21 and disengages from the disc spring claw 21. Under the action of the reset elastic member 800, the ball screw pair 300, the centering plate 400, the ratchet 500, the drive plate 600, the pressure claw plate 700 and the reset elastic member 800 are all reset to the initial state, and the torque limiter disc spring spinning tooling can be immediately put into the installation of the next disc spring 20 and the torque limiter.

[0030] It can be understood that the diameter of the circle surrounded by multiple flywheel claws 11 is similar to the diameter of the circle surrounded by multiple pressure blocks 710, so that when the pressure block 710 moves downward, the pressure block 710 can be inserted between two adjacent flywheel claws 11. The two adjacent flywheel claws 11 limit the rotation of the pressure block 710, making the pressure claw plate 700 unable to rotate.

[0031] A disc spring slot is formed between two adjacent disc spring claws 21, and the pawl 610 moves downward while rotating, and then inserts into the disc spring slot. The front and rear directions are divided by the rotation direction of the pawl 610. In the process of the pawl 610 driving the previous disc spring claw 21 to rotate, the horizontal position of the pawl 610 remains unchanged, and the disc spring claw 21 rotates from back to front on the horizontal plane. If the size of the pawl 610 on the horizontal plane is large, it may happen that in the process of the pawl 610 driving the previous disc spring claw 21 to rotate, the latter disc spring claw 21 rotates and hits the pawl 610, so the pawl 610 cannot drive the pawl 610 to rotate to the required angle.

[0032] The longitudinal section of the pawl 610 is a triangle, with the longest right-angled side at the highest position, and the end face of the pawl 610 corresponding to the other right-angled side is the front end face of the pawl 610, and the front end face of the pawl 610 is against a side wall of the disc spring slot (the previous disc spring pawl 21), and the end face of the pawl 610 corresponding to the hypotenuse of the triangle is the rear end face of the pawl 610, and the rear end face of the pawl 610 faces the other side wall of the disc spring slot (the next disc spring pawl 21) and downward, that is, the rear end face of the pawl 610 is an inclined surface. In the process of the pawl 610 rotating and moving downward, since the rear end face of the pawl 610 is an inclined surface, the rear end face of the pawl 610 can be avoided from interfering with the next disc spring pawl 21, thereby ensuring that the pawl 610 can drive the disc spring pawl 21 to rotate to the required angle.

[0033] Reference Figure 3 , Figure 4 and Figure 6 In some of the embodiments, the torsion damper disc spring spinning tooling also includes a plurality of limit posts 900, a plurality of through holes 210 are provided on the mounting plate 200, and the plurality of through holes 210 are evenly distributed on a circle with the rotation axis of the centering plate 400 as the center and the same radius. The limit posts 900 are passed through the through holes 210 and connected to the pressure claw plate 700. The mounting plate 200 cannot rotate. The mounting plate 200 limits the rotation of the pressure claw plate 700 through the plurality of limit posts 900, and the pressure claw plate 700 does not rotate with the centering plate 400, so as to ensure that when the pressure block 710 moves downward, it can accurately contact the disc spring claw 21 and drive the disc spring claw 21 and the disc spring 20 to move downward.

[0034] In some of the embodiments, the torsion damper disc spring spinning tooling also includes a plurality of thrust elastic members 910, which are disposed between the mounting plate 200 and the pressure claw plate 700. The thrust elastic members 910 are used to force the pressure claw plate 700 to move downward, and the thrust elastic members 910 assist in the downward movement of the centering plate 400, so that the pressure claw plate 700 is in a lower position.

[0035] In some of the embodiments, the limiting column 900 is a bolt, the threaded section of the bolt is threadedly connected to the pressure claw plate 700, so that the bolt is fixed to the pressure claw plate 700, and the thrust elastic member 910 is a thrust spring, which is sleeved on the bolt, and the two ends of the thrust spring are respectively against the lower surface of the mounting plate 200 and the upper surface of the pressure claw plate 700, and the bolt plays the role of a limiting thrust spring. At this time, the bolt can move in the through hole 210 along the axial direction of the through hole 210, that is, move up and down, and the side wall of the through hole 210 plays the role of guiding the movement direction of the bolt.

[0036] Reference Figure 4 The upper surface of the mounting plate 200 is provided with a protrusion in the area corresponding to the ball screw pair 300, and the upper surface of the protrusion is connected with an adapter plate 220, and the mounting plate 200 can be conveniently and quickly connected to the external pressing mechanism through the adapter plate 220. There is a large gap between the upper surface of the mounting plate 200 and the lower surface of the adapter plate 220, and the head of the bolt is in the gap. The height of the gap allows the head of the bolt to move up and down.

[0037] The centering plate 400 is sleeved with a bearing 420, and the centering plate 400 is connected to the pressing claw plate 700 through the bearing 420, so that the centering plate 400 and the pressing claw plate 700 can be lifted and lowered synchronously and rotate relative to each other. The resetting elastic member 800 can be a torsion spring.

[0038] Reference Figure 6 The torsion damper disc spring spinning tooling also includes a plurality of ball head plungers 520. The second inclined surface 511 is provided with a mounting hole. The ball head plunger 520 is passed through the mounting hole. The ball head structure of the ball head plunger 520 is used to abut against the first inclined surface 410. The ratchet 510 applies force to the first inclined surface 410 through the ball head structure. The ball head structure can reduce the friction force generated by the direct contact of the second inclined surface 511 with the first inclined surface 410. The smaller force drives the ratchet 500 to move downward to drive the centering plate 400 to rotate.

[0039] It is understandable that each inclined surface is provided with two mounting holes, each mounting hole is provided with a ball plunger 520, that is, each ratchet 510 is provided with two ball plungers 520. The ball plunger 520 is a common component in the market, and its structure and mounting method are known, so no redundant introduction is made here.

[0040] Reference Figure 4 , Figure 6 and Figure 7In some embodiments, the ball screw pair 300 includes a lead screw 310, an inner spiral groove structure 320 and a plurality of balls 330. The lead screw 310 is provided with an outer spiral groove structure. The lead screw 310 is vertically arranged on the lower surface of the mounting plate 200. The inner spiral groove structure 320 is arranged on a centering plate 400. The centering plate 400 is sleeved on the lead screw 310, and the plurality of balls 330 are arranged between the inner spiral groove structure 320 and the outer spiral groove structure. The balls 330 can reduce the friction resistance between the lead screw 310 and the inner spiral groove structure 320, so that the centering plate 400 can be easily rotated and lifted on the mounting plate 200.

[0041] Reference Figure 4 In some embodiments, a retaining spring 311 is provided at the lower end of the lead screw 310. The retaining spring 311 can abut against the lower surface of the centering disk 400 to limit the centering disk 400 on the lead screw 310. The retaining spring 311 defines the lowest position of the centering disk 400 to prevent the centering disk 400 from moving and falling off the mounting plate 200.

[0042] It can be imagined that a slot is provided at the lower end of the screw 310 near the lower end surface of the screw 310 , and the retaining spring 311 is clamped in the slot. The outer diameter of the retaining spring 311 is larger than the outer diameter of the screw 310 , so that the retaining spring 311 can rest against the lower surface of the centering disk 400 .

[0043] Reference Figure 7 In some embodiments, the lower surface of the centering disk 400 is provided with a plurality of circumferentially distributed limiting grooves 430, the longitudinal section of the limiting groove 430 is an inverted right-angled trapezoid, and one side surface of the limiting groove 430 is a first inclined surface 410. When the second inclined surface 511 presses down the first inclined surface 410, the ratchet 510 enters the limiting groove 430, which can make the structure between the ratchet wheel 500 and the centering disk 400 more compact.

[0044] The diameter of the circle formed by the ratchet teeth 510 is smaller than the diameter of the circle formed by the ratchet pawls 610. In this embodiment, the number of the ratchet teeth 510 and the number of the limiting grooves 430 are both six.

[0045] Reference Figure 8 In some of the embodiments, a limiting notch is provided on the lower surface of the pressure block 710 near the centering disk 400, and the inner wall of the limiting notch is used to abut against the outer edge of the disc spring claw 21. The pressure block 710 is stuck on the outer side of the disc spring claw 21, which can better ensure that the pressure block 710 presses down the disc spring claw 21.

[0046] Reference Figure 4 and Fig. 9 In some of the embodiments, a pad 120 is connected to the bottom of the base plate 100, and the base plate 100 is fixed to the ground or an external device such as a rack through the pad 120, which can ensure the compression resistance and stability of the base plate 100.

[0047] A plurality of positioning pins 111 are provided on the base plate 100, and the positioning pins 111 are used to be inserted into the positioning holes on the flywheel disc 10. The positioning pins 111 limit the rotation of the flywheel disc 10, thereby preventing the flywheel disc 10 from rotating when the pawl 610 drives the disc spring claw 21 to rotate, thereby preventing the disc spring 20 from being installed incompletely.

[0048] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A spinning tool for a disc spring of a torque limiting vibration damper, characterized in that: include: A bottom plate (100) is used to limit the flywheel disc (10) and is provided with a top ring (110); A mounting plate (200) used for connecting to an external pressing mechanism, wherein the lower surface of the mounting plate (200) is connected to a centering plate (400) via a ball screw pair (300), and the upper surface of the centering plate (400) is provided with a plurality of first inclined surfaces (410); A ratchet wheel (500) connected to the mounting plate (200) and coaxially arranged with the centering disc (400), wherein all ratchet teeth (510) on the ratchet wheel (500) are arranged downwardly, and the lower surface of the ratchet teeth (510) is a second inclined surface (511), and the second inclined surface (511) is used to abut against the first inclined surface (410); A driving disk (600) connected to the centering disk (400), a plurality of ratchet claws (610) being provided on a lower surface of the driving disk (600), the plurality of ratchet claws (610) being evenly distributed on a circle having the same radius and taking the rotation axis of the centering disk (400) as the center, the ratchet claws (610) being used to be clamped between two adjacent disc spring claws (21) on the disc spring (20); A pressure claw plate (700) is rotatably disposed on the centering plate (400), the pressure claw plate (700) can abut against the upper surface of the top ring (110) to limit the downward movement of the pressure claw plate (700), and a plurality of pressure blocks (710) are provided on the lower surface of the pressure claw plate (700), and the plurality of pressure blocks (710) are evenly distributed on a circle with the rotation axis of the centering plate (400) as the center and the same radius, and the pressure blocks (710) are located outside the ratchet (610). 0) is used to press down the disc spring claw (21), the second inclined surface (511) presses down the first inclined surface (410), and the pressing block (710) presses down the disc spring claw (21) so that the disc spring claw (21) is lower than the flywheel claw (11) of the flywheel disc (10), and the centering disc (400) and the driving disc (600) rotate and move downward, and the ratchet (610) drives the disc spring claw (21) to rotate and causes the disc spring claw (21) to be clamped under the flywheel claw (11); The resetting elastic member (800) is disposed between the mounting plate (200) and the centering disk (400), and the resetting elastic member (800) is used to drive the centering disk (400) and the driving disk (600) to rotate in opposite directions and move upward.

2. The disc spring spinning tool for torque limiting vibration damper according to claim 1, characterized in that: It also comprises a plurality of limiting columns (900), the mounting plate (200) is provided with a plurality of through holes (210), the plurality of through holes (210) are evenly distributed on a circle with the rotation axis of the centering disk (400) as the center and the same radius, the limiting columns (900) are passed through the through holes (210) and are connected to the pressure claw disk (700).

3. The disc spring spinning tool for torque limiting vibration damper according to claim 2, characterized in that: It also includes a plurality of thrust elastic members (910), wherein the thrust elastic members (910) are arranged between the mounting plate (200) and the pressure claw plate (700), and the thrust elastic members (910) are used to force the pressure claw plate (700) to move downward.

4. The disc spring spinning tool for torque limiting vibration damper according to claim 3 is characterized in that: The limiting column (900) is a bolt, the threaded section of the bolt is threadedly connected to the pressure claw plate (700), the thrust elastic member (910) is a thrust spring, the thrust spring is sleeved on the bolt, and the two ends of the thrust spring respectively abut against the lower surface of the mounting plate (200) and the upper surface of the pressure claw plate (700).

5. The disc spring spinning tool for torque limiting vibration damper according to claim 1, characterized in that: It also comprises a plurality of ball head plungers (520), the second inclined surface (511) is provided with a mounting hole, the ball head plungers (520) are passed through the mounting hole, and the ball head structure of the ball head plungers (520) is used to abut against the first inclined surface (410).

6. The disc spring spinning tool for torque limiting vibration damper according to claim 1, characterized in that: The ball screw pair (300) comprises a lead screw (310), an inner spiral groove structure (320) and a plurality of balls (330); the lead screw (310) is provided with an outer spiral groove structure; the lead screw (310) is vertically arranged on the lower surface of the mounting plate (200); the inner spiral groove structure (320) is arranged on the centering plate (400); the centering plate (400) is sleeved on the lead screw (310); and the plurality of balls (330) are arranged between the inner spiral groove structure (320) and the outer spiral groove structure.

7. The disc spring spinning tool for torque limiting vibration damper according to claim 6, characterized in that: A retaining spring (311) is provided at the lower end of the lead screw (310), and the retaining spring (311) can abut against the lower surface of the centering disk (400) to limit the position of the centering disk (400) on the lead screw (310).

8. The disc spring spinning tool for torque limiting vibration damper according to claim 1, characterized in that: The lower surface of the centering disk (400) is provided with a plurality of circumferentially distributed limiting grooves (430), the longitudinal section of the limiting groove (430) is an inverted right-angled trapezoid, and one side surface of the limiting groove (430) is the first inclined surface (410).

9. The disc spring spinning tool for torque limiting vibration damper according to claim 1, characterized in that: A limiting notch is provided in an area of ​​the lower surface of the pressing block (710) close to the centering disk (400), and an inner wall of the limiting notch is used to abut against the outer edge of the disc spring claw (21).

10. The disc spring spinning tool for torque limiting vibration damper according to claim 1, characterized in that: A pad (120) is connected to the bottom of the base plate (100), and a plurality of positioning pins (111) are provided on the base plate (100), wherein the positioning pins (111) are used to be inserted into positioning holes on the flywheel disc (10) to limit the rotation of the flywheel disc (10).

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