A spliced automobile clutch disc hub disc core

Abstract

The utility model relates to the clutch disc hub field, concretely relates to a kind of disc core of spliced automobile clutch disc hub, and its technical scheme is: including clutch disc hub and disc core, the disc core is installed in clutch disc hub middle, the disc core includes first half disc and second half disc, the first half disc and second half disc two sides are connected with locking screw thread, the first half disc and second half disc inner wall are equipped with oil hole, the first half disc and second half disc upper end middle are equipped with oil inlet, the first half disc and second half disc inner cavity middle are equipped with arc oil groove, the utility model has the beneficial effects that: the utility model uses first half disc and second half disc splicing structure, realizes modular assembly by clamping block, clamping slot and locking screw, only needs to unscrew locking screw when maintaining to separate disc core, quickly replace wearing component, without replacing entire disc hub, greatly reduce maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of clutch disc hubs, specifically to a disc core of a spliced ​​automotive clutch disc hub. Background Technology

[0002] With the rapid development of the automotive industry, the clutch, as a key component of the automotive transmission system, directly affects the driving comfort, power transmission efficiency, and component lifespan of the entire vehicle. The clutch disc hub, as the core load-bearing component of the clutch assembly, plays a crucial role in the reliability of the clutch due to its structural strength and functional design. Traditional clutch disc hubs are mostly one-piece structures, which, while simple in structure and low in manufacturing cost, have many shortcomings in practical applications.

[0003] First, during long-term use, the traditional disc hub structure is prone to wear, overheating, and even deformation of the disc core due to continuous friction between the friction plates and the disc core. This affects the smoothness of clutch engagement and transmission efficiency. Once the traditional disc core structure is damaged, the entire clutch disc hub assembly often needs to be replaced, resulting in high maintenance costs and long cycles, which is not conducive to the economical maintenance of the entire vehicle.

[0004] Therefore, it is necessary to invent a core for a spliced ​​automotive clutch disc hub. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background section.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a core for a spliced ​​automotive clutch disc hub, comprising a clutch disc hub and a core, wherein the core is installed in the middle of the clutch disc hub, and the core includes a first semi-circular disc and a second semi-circular disc, with locking screws threadedly connected to both sides of the first and second semi-circular discs, oil outlet holes being provided on the inner walls of the first and second semi-circular discs, oil inlet holes being provided in the middle of the upper ends of the first and second semi-circular discs, and an arc-shaped oil groove being provided in the middle of the inner cavities of the first and second semi-circular discs.

[0007] Based on the above features: the disc core is a spliced ​​structure, including a first semi-circular disc and a second semi-circular disc, which are connected by locking screws. It is equipped with an oil inlet hole, an oil outlet hole and an arc-shaped oil groove inside, forming a lubricating oil channel system.

[0008] Preferably, the lower ends of both sides of the first semi-circular disk are provided with grooves, and a locking block is fixedly installed on the top surface of the groove.

[0009] Based on the above features: it is used for docking and positioning with the second semi-disc, enhancing splicing accuracy and structural stability.

[0010] Preferably, the lower ends of both sides of the second semi-disc are symmetrically equipped with bosses, and the bosses have slots in the middle. Both the slots and the blocks have threaded holes in the middle.

[0011] Based on the above features: the slot and the first semi-circular disk are engaged, and both the slot and the block are provided with threaded holes for inserting locking screws to achieve a detachable and fixed connection.

[0012] Preferably, the upper inner wall of the oil inlet hole is provided with an internal thread, a sealing plug is connected to the internal thread of the oil inlet hole, and a sealing gasket is provided between the sealing plug and the oil inlet hole.

[0013] Based on the above features: a sealing gasket is provided between the sealing plug and the oil inlet to prevent lubricating oil leakage and ensure sealing performance.

[0014] Preferably, a guide groove is provided on the side of the arc-shaped oil groove away from the oil outlet. A permanent magnet A is fixedly installed on the inner wall of the guide groove on the side away from the arc-shaped oil groove. A piston plate is movably connected inside the guide groove. A piston rod is fixedly installed on the side of the piston plate away from the permanent magnet A. A steel ball is installed at the other end of the piston rod.

[0015] Based on the above characteristics, an oil control mechanism is formed to control the opening and closing of the oil outlet, thereby realizing the automatic release and sealing of lubricating oil.

[0016] Preferably, a permanent magnet B is fixedly installed on the side of the piston plate away from the piston rod, and the permanent magnet B has its magnetic poles opposite to those of the permanent magnet A.

[0017] Based on the above characteristics: the piston plate is moved by magnetic repulsion, thereby sealing the oil outlet hole with steel balls.

[0018] Preferably, a pull rope is fixedly connected to one side of the steel ball, and a counterweight is installed in the middle of the pull rope.

[0019] Based on the above characteristics: relying on the centrifugal force generated when the disc rotates to pull the steel ball away from the oil outlet, the high-speed automatic lubrication function is achieved.

[0020] The beneficial effects of this utility model are: 1. This utility model adopts a splicing structure of the first half-disc and the second half-disc, and achieves modular assembly through the locking blocks, slots and locking screws. During maintenance, only the locking screws need to be unscrewed to separate the disc core and quickly replace worn parts without replacing the entire disc hub, which greatly reduces maintenance costs.

[0021] 2. This utility model utilizes an oil control mechanism controlled by a counterweight and a magnet, which can automatically adjust the timing and amount of lubricating oil release according to the clutch speed. This structure achieves the normal sealing of the oil outlet hole by the steel ball through the repulsive force between permanent magnets A and B, ensuring that the lubricating oil does not leak in the static or low-speed state. When the disc rotates at high speed, the counterweight moves outward under the action of centrifugal force, and the steel ball is pulled by the pull rope to open the oil outlet hole. The lubricating oil is automatically thrown out under the action of centrifugal force, accurately lubricating the friction pair. Attached Figure Description

[0022] Figure 1 A schematic diagram of the overall structure of the core of a spliced ​​automotive clutch disc hub provided by this utility model; Figure 2 A diagram showing the connection state of the first and second semicircular discs of a spliced ​​automotive clutch disc hub provided by this utility model. Figure 3 A diagram showing the disassembled state of the first and second semicircular discs of a spliced ​​automotive clutch disc hub provided by this utility model. Figure 4 A top sectional view of the first and second semicircular discs of a spliced ​​automotive clutch disc hub provided by this utility model.

[0023] Figure 5 The present invention provides a core for a spliced ​​automotive clutch disc hub. Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0024] In the diagram: 1. Clutch disc hub; 2. Disc core; 21. First semi-disc; 211. Groove; 212. Locking block; 22. Second semi-disc; 221. Boss; 222. Slot; 223. Threaded hole; 23. Locking screw; 24. Oil outlet; 25. Oil inlet; 251. Sealing plug; 252. Sealing gasket; 26. Arc-shaped oil groove; 261. Guide groove; 262. Permanent magnet A; 263. Piston plate; 2631. Permanent magnet B; 264. Piston rod; 265. Steel ball; 2651. Pull rope; 2652. Counterweight. Detailed Implementation

[0025] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0026] See attached document Figure 1-5This utility model provides a spliced ​​automotive clutch disc hub core, including a clutch disc hub 1 and a core 2. The threaded hole 223 between the groove 222 and the locking block 212 will automatically align. The first semi-circular disc 21 and the second semi-circular disc 22 are threadedly connected to locking screws 23 on both sides, and can finally be connected from bottom to top using the locking screws 23. The core 2 is installed in the center hole of the clutch disc hub 1. The two can be fixedly connected by interference fit, key connection or welding to ensure synchronous movement during rotation. The core 2 is a spliced ​​structure, consisting of two symmetrical semi-circular discs: the first semi-circular disc 21 and the second semi-circular disc 22. The lower ends of both sides of the first semi-circular disc 21 are provided with grooves 211, and the top surface of the grooves 211 is fixedly installed with the locking block 212. The lower ends of both sides of the second semi-circular disc 22 are symmetrically installed with bosses 221, and the bosses 221 are connected to the second semi-circular disc 22. The disc 22 is an integral structure, with the boss 221 matching the groove 211. The boss 221 has a slot 222 in the middle, and both the slot 222 and the locking block 212 have threaded holes 223 in the middle. The slot 222 and the locking block 212 are movably engaged. When they are engaged together, the boss 221 and the groove 211 will be tightly engaged together. At the same time, the threaded holes 223 pass through and lock the slot 222 and the locking block 212. At this time, the first half-disc 21 and the second half-disc 22 will not separate. When one of them needs to be disassembled, simply unscrew the locking screw 23. This structure not only ensures the overall strength of the disc core 2, but also realizes modular disassembly and assembly, which makes it easy to replace the disc core 2 or its internal parts separately when the clutch is repaired or replaced, reducing maintenance costs (the contact surface between the locking block 212 and the slot 222 has a 1.5° guide chamfer with a chamfer length of 2 mm to prevent misalignment of the threaded holes due to circumferential offset during assembly).

[0027] Oil outlet holes 24 are formed on the inner walls of the first semi-circular disk 21 and the second semi-circular disk 22. Oil inlet holes 25 are formed in the middle of the upper ends of the first semi-circular disk 21 and the second semi-circular disk 22, through which lubricating oil is introduced. An arc-shaped oil groove 26 is formed in the middle of the inner cavity of the first semi-circular disk 21 and the second semi-circular disk 22. The arc-shaped oil groove 26 is arranged circumferentially along the inner cavity of the disk core 2 and is used to store lubricating oil. It is connected to the oil outlet holes 24 and the oil inlet holes 25. The oil inlet holes 25 are located above the arc-shaped oil groove 26. The inner wall of the upper end of the oil inlet holes 25 is provided with internal threads. The part is threaded with a sealing plug 251. The top of the sealing plug 251 is provided with an end cap. The upper surface of the sealing plug 251 is provided with an external thread to facilitate the threaded connection between the sealing plug 251 and the internal thread on the upper inner wall of the oil inlet hole 25. A sealing gasket 252 is provided between the sealing plug 251 and the oil inlet hole 25. The sealing gasket 252 is a high temperature resistant and oil corrosion resistant O-ring rubber ring to ensure that no lubricating oil leakage occurs in high speed rotation or high temperature environment. The sealing plug 251 can pass through the middle of the sealing gasket 252 to provide a seal after the oil inlet hole 25 is blocked.

[0028] A guide groove 261 is provided on the side of the arc-shaped oil groove 26 away from the oil outlet 24. A permanent magnet A262 is fixedly installed on the inner wall of the guide groove 261 away from the arc-shaped oil groove 26. A piston plate 263 is movably connected inside the guide groove 261. A piston rod 264 is fixedly installed on the side of the piston plate 263 away from the permanent magnet A262. A permanent magnet B2631 is fixedly installed on the side of the piston plate 263 away from the piston rod 264. The magnetic poles of permanent magnet B2631 and permanent magnet A262 are opposite to each other and repel each other. The permanent magnets B2631 and A262 are made of neodymium iron boron strong magnetic material to ensure sufficient magnetic force in a confined space. The other end of the piston rod 264 is equipped with a steel ball 265, which is made of stainless steel and has a polished surface to ensure sealing and corrosion resistance. The steel ball 265 can block the oil outlet 24. A pull rope 2651 is fixedly connected to one side of the steel ball 265. It is made of high-strength piano wire or stainless steel wire and has good tensile strength and fatigue life. A counterweight 2652 is installed in the middle of the pull rope 2651.

[0029] When the disc core 2 is stationary, permanent magnet A262 will repel and push away permanent magnet B2631, causing piston plate 263 to drive steel ball 265 to block oil outlet 24 via piston rod 264. At this time, lubricating oil is sealed in arc-shaped oil groove 26 to prevent leakage. When the disc core 2 rotates at low speed, the centrifugal force generated by rotation is insufficient to overcome the steel ball 265 to disengage from oil outlet 24, and oil outlet 24 still does not leak. When the disc core 2 rotates at high speed, counterweight 2652 will be thrown outward, and piston plate 263 will drive piston rod 264 to guide. The cylinder retracts into the groove 261, and the permanent magnet B2631 approaches the permanent magnet A262. At this time, the counterweight 2652 pulls the steel ball 265 away from the oil outlet 24 through the pull rope 2651 (piano wire), and the lubricating oil in the arc-shaped oil groove 26 is thrown out to the tooth surface for lubrication. When the rotation speed slows down, due to insufficient centrifugal force, the permanent magnet A262 will repel and push away the permanent magnet B2631, so that the piston plate 263 drives the steel ball 265 to re-seal the oil outlet 24 through the piston rod 264.

[0030] The usage process of this utility model is as follows: The clutch disc 2 is composed of a first semi-circular disc 21 and a second semi-circular disc 22, connected to a slot 222 via a locking block 212 and secured by a locking screw 23. When the clutch is stationary or rotating at low speed, the disc 2 rotates synchronously with the clutch disc hub 1, but the centrifugal force is small. At this time, the repulsive force between permanent magnet A262 and permanent magnet B2631 dominates, pushing the piston plate 263 outward. The piston plate 263, through the piston rod 264, drives the steel ball 265 to press against the oil outlet 24, forming a seal. The lubricating oil is sealed in the arc-shaped oil groove 26 and will not flow out. When the clutch enters a high-speed rotation state, the speed of the disc 2 increases significantly, and the counterweight 2652 is thrown outward under the action of centrifugal force. Pull rope 2651 pulls steel ball 265, which overcomes magnetic force and disengages from oil outlet 24. At the same time, piston plate 263 slides inward, and permanent magnet B2631 approaches permanent magnet A262. At this time, oil outlet 24 is opened, and lubricating oil is thrown out from arc-shaped oil groove 26 under the action of centrifugal force, reaching the surface of clutch friction plate through oil outlet 24 to achieve automatic lubrication. When the clutch speed decreases or stops, the centrifugal force decreases, counterweight 2652 resets, pull rope 2651 loosens, permanent magnet A262 repels permanent magnet B2631 again, pushing piston plate 263 to reset, and piston rod 264 drives steel ball 265 to reseal oil outlet 24, lubricating oil stops flowing out, and the system returns to the closed oil-keeping state.

[0031] The above description is merely a preferred embodiment of this utility model. Any person skilled in the art may modify this utility model or modify it into an equivalent technical solution using the technical solutions described above. Therefore, any simple modifications or equivalent substitutions made based on the technical solutions of this utility model are within the scope of protection claimed by this utility model.

Claims

1. A core of a spliced ​​automotive clutch disc hub, comprising a clutch disc hub (1) and a core (2), wherein the core (2) is installed in the middle of the clutch disc hub (1), characterized in that: The disc core (2) includes a first semi-circular disc (21) and a second semi-circular disc (22). Locking screws (23) are threadedly connected to both sides of the first semi-circular disc (21) and the second semi-circular disc (22). Oil outlet holes (24) are opened on the inner walls of the first semi-circular disc (21) and the second semi-circular disc (22). Oil inlet holes (25) are opened in the middle of the upper end of the first semi-circular disc (21) and the second semi-circular disc (22). Arc-shaped oil grooves (26) are opened in the middle of the inner cavities of the first semi-circular disc (21) and the second semi-circular disc (22).

2. The disc core of a spliced ​​automotive clutch disc hub according to claim 1, characterized in that: The lower ends of both sides of the first semi-circular disk (21) are provided with grooves (211), and a locking block (212) is fixedly installed on the top surface of the groove (211).

3. A disc core for a split automotive clutch disc hub according to claim 2, wherein: The second semi-circular disk (22) has symmetrical bosses (221) installed on the lower ends of both sides. A slot (222) is provided in the middle of the boss (221). A threaded hole (223) is provided in the middle of both the slot (222) and the block (212).

4. A disc core for a split automotive clutch disc hub according to claim 1, wherein: The upper inner wall of the oil inlet hole (25) is provided with an internal thread, and a sealing plug (251) is connected to the internal thread of the oil inlet hole (25). A sealing gasket (252) is provided between the sealing plug (251) and the oil inlet hole (25).

5. A disk core for a split automotive clutch disc hub according to claim 1, wherein: A guide groove (261) is provided on the side of the arc-shaped oil groove (26) away from the oil outlet (24). A permanent magnet A (262) is fixedly installed on the inner wall of the guide groove (261) away from the arc-shaped oil groove (26). A piston plate (263) is movably connected inside the guide groove (261). A piston rod (264) is fixedly installed on the side of the piston plate (263) away from the permanent magnet A (262). A steel ball (265) is installed at the other end of the piston rod (264).

6. A disc core for a split automotive clutch disc hub according to claim 5, wherein: A permanent magnet B (2631) is fixedly installed on the side of the piston plate (263) away from the piston rod (264), and the permanent magnet B (2631) is opposite to the magnetic pole of the permanent magnet A (262).

7. A spliced automotive clutch disc hub core according to claim 5, wherein: A pull rope (2651) is fixedly connected to one side of the steel ball (265), and a counterweight (2652) is installed in the middle of the pull rope (2651).

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