Push type clutch pressure plate supporting ring, pressure plate assembly and supporting ring clamp

Abstract

The utility model discloses a push type clutch pressure plate supporting ring, a pressure plate assembly and a supporting ring clamp, and belongs to the technical field of push type clutches. The push type clutch pressure plate supporting ring comprises an annular supporting ring base body; the end, away from the supporting ring base body, of each connecting part is bent to form a buckling part consistent with the supporting ring base body in direction. A supporting ring protrusion protruding towards the buckling part is arranged in the middle of the supporting ring base body, and the section of the supporting ring protrusion is an arc-shaped face. And a laser cladding layer is arranged at the top of the support ring bulge. The laser cladding layer on the top of the protrusion of the supporting ring can remarkably improve the hardness and abrasion resistance of the top of the protrusion of the supporting ring, friction loss can be effectively resisted, the abrasion loss is reduced, the problems of supporting point deviation and the like caused by abrasion are solved, then the stability of pressing force and separating force of the clutch is guaranteed, and the working performance and reliability of the clutch are improved. And convenient, efficient and accurate machining of the laser cladding layer on the supporting ring is effectively achieved.

Description

Technical Field

[0001] This utility model belongs to the field of push clutch technology, specifically a push clutch pressure plate support ring, pressure plate assembly and support ring clamp. Background Technology

[0002] As a key component of the automotive transmission system, the clutch is located in the flywheel housing between the engine and the gearbox. Its function is to cut off and transmit power between the engine and the gearbox through driver control.

[0003] The clutch has the following functions:

[0004] Smooth start: When a car is stationary before starting, if the engine and transmission are rigidly connected, the car will suddenly lurch forward after gearing up, which can easily damage mechanical parts and may cause the engine to stall. The clutch can temporarily separate the engine and transmission during start-up, and then gradually engage, causing the torque transmitted by the clutch to gradually increase from zero, and the driving force of the car to gradually increase, thus achieving a smooth start.

[0005] Smooth gear shifting: During driving, different gears in the transmission need to be shifted to adapt to changing driving conditions. Without a clutch to separate the engine and transmission, the meshing gears in the transmission are difficult to disengage, and the gears to be engaged also struggle to mesh due to unequal circumferential speeds. Forcing engagement can cause tooth tip impact and damage to components. Using a clutch to temporarily separate the engine and transmission before shifting gears makes it easier for the previously meshed gears to disengage, and the gears to be engaged can achieve equal or near-equal circumferential speeds more smoothly, avoiding or reducing gear impact.

[0006] Preventing transmission system overload: During emergency braking, the wheels decelerate rapidly, but the transmission system connected to the engine maintains its original speed due to rotational inertia. This generates an inertial torque in the transmission system that is much greater than the engine torque, making transmission system components prone to damage. The clutch transmits torque through friction. When the load in the transmission system exceeds the torque that friction can transmit, the driving and driven parts automatically slip, thus preventing transmission system overload.

[0007] Reducing torsional vibration impact: The output torque of a car engine is uneven, with the power stroke generating a large impact torque. During other strokes, the engine is dragged back by inertia, and the remaining impact force adversely affects the subsequent transmission and driveshaft. The damping springs (tangentially distributed) in the clutch can significantly reduce the torsional vibration impact from the engine, extending the life of the transmission gears.

[0008] Among the many types of clutches, push type clutches play an important role in the transmission system due to their structural design and working principle. The pressure plate cover, support ring and other components of the push type clutch play a key role in the separation and engagement process of the clutch. However, there are many problems with the push type clutch, and the pressure plate cover and support ring are usually made of low carbon steel stamping parts with complex shapes. In the frequent separation and engagement operation of the clutch, the support points of the pressure plate cover and the support ring as the main stress points bear a lot of pressure and friction, and are prone to wear. The wear of the support points of the pressure plate cover directly changes the working range of the diaphragm spring, which is equivalent to accelerating the wear of the driven plate; although the wear of the support points of the support ring does not change the working range of the diaphragm spring due to the self-adaptive adjustment of the disc spring, it will cause the support points to deviate, thereby seriously affecting the compression force and separation force, eventually causing the clutch to slip during transmission, greatly affecting the performance and service life of the clutch, reducing the reliability and safety of the vehicle, and increasing the maintenance cost and user's use of the vehicle. Troubled. Practical new type content

[0009] In order to solve the problem that the support points of the pressure plate support ring of the traditional push type clutch are prone to wear, which will cause the support points to deviate, thereby affecting the compression force and separation force, and affecting the performance and service life of the clutch, the utility model provides a push type clutch pressure plate support ring, a pressure plate assembly and a support ring clamp.

[0010] The utility model on the one hand is realized through the following technical scheme:

[0011] A push type clutch pressure plate support ring, comprising a circular support ring base body, a connecting part is uniformly and interval bent in the ring shape in the support ring base body, and a buckle part consistent with the direction of the support ring base body is bent at the end of the connecting part away from the support ring base body; a support ring protrusion protruding towards the buckle part is arranged in the middle of the support ring base body, and the cross section of the support ring protrusion is an arc surface; a laser cladding layer is arranged on the top of the support ring protrusion.

[0012] Further improvement of the utility model also has that the support ring protrusion is integrally stamped with the support ring base body.

[0013] The utility model on the other hand is realized through the following technical scheme:

[0014] A pressure plate assembly, comprising a pressure plate, a pressure plate cover, a diaphragm spring and the push type clutch pressure plate support ring; one side of the pressure plate and the support ring protrusion abuts against the diaphragm spring, a pressure plate cover protrusion abutting against the other side of the diaphragm spring is arranged on the pressure plate cover, the pressure plate cover protrusion is correspondingly arranged with the support ring protrusion, a disc spring is arranged on the side of the pressure plate cover away from the diaphragm spring, and the side of the disc spring away from the pressure plate cover is clamped through the buckle part.

[0015] The further improvement of the utility model still has, the edge of the protruding section of the pressure disc cover is arc-shaped, and the top of the protruding part of the pressure disc cover is provided with a laser cladding layer.

[0016] The utility model discloses still one aspect is realized through the following technical scheme:

[0017] A support ring clamp is used for clamping the push type clutch pressure disc support ring, comprising a base and a positioning gland, the base is provided with a base protrusion capable of positioning and supporting the support ring base body, and the positioning gland is provided with a pressing plate capable of pressing and assembling the one end of the support ring base body close to the connecting part.

[0018] The further improvement of the utility model still has, the inside of the pressing plate can be attached to the outside of the connecting part.

[0019] The further improvement of the utility model still has, the inside of the nut is provided with a gasket.

[0020] The further improvement of the utility model still has, the inside of the nut is provided with a gasket.

[0021] The further improvement of the utility model still has, the middle part of the side of the base away from the positioning gland is provided with a counterbore capable of accommodating the head of the bolt.

[0022] The further improvement of the utility model still has, and further comprising a shaping gland, and the edge of the shaping gland is provided with a shaping groove capable of pressing and assembling and shaping the top of the support ring protrusion.

[0023] From the above technical scheme, the beneficial effects of the utility model are:

[0024] The laser cladding layer on the top of the support ring protrusion can significantly improve the hardness and wear resistance of the top of the support ring protrusion, and in the process of clutch separation and engagement, the top of the support ring protrusion as the main stress point frequently contacts and rubs with components such as diaphragm springs, the laser cladding layer can effectively resist such friction loss, reduce the wear amount, prevent the problems such as support point deviation caused by wear, and further ensure the stability of the pressing force and separation force of the clutch, improve the working performance and reliability of the clutch. BRIEF DESCRIPTION OF DRAWINGS

[0025] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the pressure plate assembly structure according to a specific embodiment of the present utility model.

[0027] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure.

[0028] Figure 3 This is a schematic diagram of the support ring material structure according to a specific embodiment of the present invention.

[0029] Figure 4 This is a schematic diagram of the bent state of the connecting part of the support ring in a specific embodiment of this utility model.

[0030] Figure 5 This is a schematic diagram of laser cladding of the support ring according to a specific embodiment of the present invention.

[0031] Figure 6 for Figure 5 A magnified schematic diagram of part A in the middle.

[0032] Figure 7 This is a schematic diagram of the support ring shaping according to a specific embodiment of the present invention.

[0033] Figure 8 for Figure 7 A magnified schematic diagram of part B in the middle section.

[0034] In the attached diagram: 1. Pressure plate cover, 2. Diaphragm spring, 3. Disc spring, 4. Pressure plate, 5. Support ring, 6. Laser cladding layer, 7. Base, 8. Positioning cover, 9. Bolt, 10. Countersunk hole, 11. Nut, 12. Washer, 13. Shaping cover. Detailed Implementation

[0035] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0036] like Figures 1-4The utility model discloses a push type clutch pressure plate support ring, including the support ring base body of circular ring, the support ring base body is in along annular even interval straight angle bending and has a plurality of connecting parts, and the end of connecting part is away from the buckle part of support ring base body direction consistent and is bent, the support ring base body middle part is equipped with the annular of support ring protruding to the buckle part direction, and the support ring protruding cross section is arc, and the support ring protruding top is equipped with laser cladding layer.

[0037] The laser cladding layer on the top of the support ring protrusion can significantly improve the hardness and wear resistance of the top of the support ring protrusion. During the separation and engagement of the clutch, the top of the support ring protrusion, as the main stress point, frequently contacts and rubs with components such as the diaphragm spring 2. The laser cladding layer can effectively resist such friction loss, reduce wear and tear, prevent the support point from deviating due to wear, and thus ensure the stability of the pressing force and separation force of the clutch and improve the working performance and reliability of the clutch. The circular support ring base body provides a basic support structure. The uniformly spaced connecting parts and buckle parts along the annular shape make the connection between the support ring 5 and other components more stable and reliable, ensuring that the relative positions between the components remain stable during the operation of the clutch, and the overall structure is less likely to loosen or deform, thereby ensuring the normal operation of the clutch. The arc-shaped cross-section of the support ring protrusion can effectively enhance the structural performance of the entire support ring 5, better distribute the force transmitted by components such as the diaphragm spring 2, make the force distribution more uniform, avoid excessive local stress, reduce component wear and fatigue damage, and prolong the service life of the clutch components.

[0038] The support ring protrusion is integrally stamped and formed with the support ring base body to form an equal-thickness curved structure, i.e., the support ring protrusion is formed on the front surface of the support ring base body, and a groove is formed on the back surface of the support ring base body. The support ring protrusion and the support ring base body become a whole without welding or splicing, making the structure more stable. During the operation of the clutch, the support ring can better withstand the pressure and various forces from components such as the diaphragm spring 2, reducing the likelihood of deformation, cracking, and other problems caused by stress concentration, and ensuring reliable operation of the clutch. The equal-thickness curved design makes the support ring protrusion uniformly stressed in the thickness direction, further enhancing its structural strength, effectively resisting impact and friction forces generated during clutch separation and engagement, and prolonging the service life of the support ring. Integrally stamping and forming is a high-efficiency manufacturing process that effectively improves production efficiency, reduces production cycle and cost.

[0039] For example, Figures 1-2As shown, this utility model also discloses a pressure plate assembly, including a pressure plate 4, a pressure plate cover 1, a diaphragm spring 2, and the aforementioned push-type clutch pressure plate support ring; the pressure plate 4 and the support ring protrusion respectively abut against one side of the diaphragm spring 2 (the abutment point of the pressure plate 4 is located outside the support ring protrusion), the pressure plate cover 1 is provided with a pressure plate cover protrusion that abuts against the other side of the diaphragm spring 2, and the pressure plate cover protrusion is correspondingly arranged with the support ring protrusion, a disc spring 3 is provided on the side of the pressure plate cover 1 away from the diaphragm spring 2, and the side of the disc spring 3 away from the pressure plate cover 1 is fastened by a snap-fit ​​part. The pressure plate assembly uses the disc spring 3 to provide additional elastic force, enhance the pressing force of the pressure plate 4 on the clutch friction plate, making the clutch more reliable in the torque transmission process and less prone to slippage; on the other hand, the disc spring 3 can absorb the vibration and impact generated during the clutch operation to a certain extent, reduce the impact of these vibrations and impacts on the pressure plate assembly and other related components, and improve the stability and service life of the entire clutch system. The snap-fit ​​part is bent and shaped for subsequent installation. The snap-fit ​​part's attachment to the disc spring 3 further secures the position of each component, preventing displacement or loosening due to vibration during vehicle operation and ensuring the structural stability of the pressure plate assembly. The laser cladding layer on the top of the support ring protrusion significantly improves its hardness and wear resistance. During clutch disengagement and engagement, the top of the support ring protrusion, as the main stress point, frequently contacts and rubs against components such as the diaphragm spring 2. The laser cladding layer effectively resists this frictional loss, reduces wear, and prevents problems such as support point misalignment caused by wear. This ensures the stability of the clutch's clamping and disengaging forces, improving the clutch's performance and reliability.

[0040] The pressure plate cover has an arc-shaped edge on its raised section, and a laser cladding layer is provided on the top of the raised section. This laser cladding layer significantly improves the hardness and wear resistance of the raised surface. During clutch operation, the raised section of the pressure plate cover frequently contacts and rubs against components such as the diaphragm spring 2. Wear at this point affects the axial position of the diaphragm spring 2 in the pressure plate assembly (in its installed state), directly impacting the clamping force and separation force provided by the diaphragm spring 2. The laser cladding layer effectively resists this frictional loss, reduces component wear, and extends the service life of the pressure plate cover and the entire clutch pressure plate assembly. Furthermore, the pressure plate cover 1 has a relatively high thickness, making it less prone to deformation during the laser cladding process, eliminating the need for clamps.

[0041] like Figures 5-8 As shown, this utility model also discloses a support ring clamp for clamping the push-type clutch pressure plate support ring, including a disc-shaped base 7 and a positioning cover 8. The upper side edge of the base 7 is provided with a base protrusion (fitting with the groove on the back of the support ring base) that can position and support the groove on the back of the support ring base. The edge of the positioning cover 8 is provided with a pressure plate that can press and position the end of the support ring base near the connecting part. Figure 4When the support ring 5 in the shown state is subjected to the support ring protrusion top laser cladding process, the support ring base back surface groove is supported by the base protrusion on the base 7, and the support ring base inner edge is positioned by the pressing plate on the edge of the positioning gland 8, so that the precise and reliable laser cladding process of the support ring protrusion top is realized, the thermal deformation of the workpiece (support ring 5) caused by the laser cladding process is effectively prevented, and the support ring 5 is ensured to be in the accurate position during the machining or assembly process, which is beneficial to ensure the assembly accuracy of the support ring and other parts and improve the performance stability of the entire clutch system.

[0042] Wherein, the inner side of the pressing plate can be attached to the outer side of the connecting part. That is, the inner side of the pressing plate is the same size as the outer side of the connecting part. The reliability, accuracy and stability of the clamping (pressing) of the support ring 5 are realized, and further thermal deformation is avoided.

[0043] Wherein, the positioning gland 8 and the middle part of the base 7 are guided from below and penetrated by the bolt 9, and the rod of the bolt 9 is screwed with the nut 11. By tightening the nut 11 on the bolt 9, the positioning gland 8 and the base 7 can be firmly connected together, so as to stably clamp the support ring base between them, ensuring that the support ring 5 will not be deformed during the machining process, and ensuring the smooth operation; the clamping force of the support ring 5 can be flexibly adjusted by rotating the nut 11; after the machining operation of the support ring 5 is completed, only the nut 11 needs to be unscrewed, and the positioning gland 8 and the base 7 can be easily separated, and the support ring 5 can be taken out, which is convenient and fast, can be repeatedly used, reduces production cost, and improves the use efficiency of the clamp.

[0044] Further, the inner side of the nut 11 is provided with a gasket 12. The gasket 12 can avoid direct contact between the nut 11 and the connected part (positioning gland 8), prevent scratching and wear of the surface of the part contacted by the nut 11 during tightening or use, protect the surface integrity and accuracy of the part, and prolong the service life of the part.

[0045] Wherein, the middle part of the side of the base 7 away from the positioning gland 8 is provided with a counterbore 10 capable of accommodating the head of the bolt 9. The head of the bolt 9 can be hidden, the head of the bolt 9 is protected, the flatness of the bottom surface of the base 7 is ensured, interference with the workbench surface is avoided, and stable placement and operation of the clamp during use is ensured.

[0046] The support ring clamp further comprises a circular shaping gland 13, and an arc-shaped shaping groove capable of pressing and shaping the top of the support ring protrusion is arranged on the edge (lower side) of the shaping gland 13. The shaping gland 13 is also connected to the base 7 by penetrating the shaping gland 13 with a bolt 9 and tightening a nut 11. After laser cladding, the positioning gland 8 is removed, the shaping gland 13 is installed, the laser cladding layer 6 is extruded and shaped through the shaping groove on the shaping gland 13, and the size precision of the arc and height of the support ring protrusion is ensured to meet the standard, so as to ensure the overall performance of the support ring 5 and the cooperation precision with other components.

[0047] The push type clutch pressure plate support ring, pressure plate assembly and support ring clamp, the laser cladding layer on the top of the support ring protrusion can significantly improve the hardness and wear resistance of the top of the support ring protrusion. During the separation and engagement of the clutch, the top of the support ring protrusion serves as the main stress point and frequently contacts and rubs with the diaphragm spring 2 and other components. The laser cladding layer can effectively resist such friction loss, reduce wear and tear, prevent problems such as support point deviation caused by wear, and further ensure the stability of the pressing force and separation force of the clutch, improve the working performance and reliability of the clutch, and effectively realize convenient, efficient and accurate processing of the laser cladding layer 6 on the support ring 5.

[0048] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A push-type clutch plate support ring characterized by, The support ring base body is integrally punched and formed with the support ring protrusion.

2. The push-type clutch disc support ring of claim 1, wherein, The support ring protrusion is integrally punched and formed with the support ring base body.

3. A platen assembly characterized by, The push type clutch pressure plate support ring of claim 1 or 2 is further provided with a pressure plate (4), a pressure plate cover (1), a diaphragm spring (2), and a diaphragm spring (2).

4. The platen assembly of claim 3, wherein, The pressure plate cover protrusion is arc-shaped in cross section, and the top of the pressure plate cover protrusion is provided with a laser cladding layer.

5. A support ring clamp for clamping the push type clutch disc support ring of claim 1 or 2, characterized in that, The bottom base (7) is provided with a bottom base protrusion capable of positioning and supporting the support ring base body, and the positioning cover (8) is provided with a pressing plate capable of pressing the end of the support ring base body close to the connecting portion.

6. The support ring clamp of claim 5, wherein, The inner side of the pressing plate can be attached to the outer side of the connecting portion.

7. The support ring clamp of claim 5, wherein, The positioning cover (8) and the middle part of the bottom base (7) are provided with a bolt (9) penetratingly installed, and the rod part of the bolt (9) is provided with a nut (11) screwing.

8. The support ring clamp of claim 7, wherein, The inner side of the nut (11) is provided with a gasket (12).

9. The support ring clamp of claim 5, wherein, The middle part of the side of the bottom base (7) away from the positioning cover (8) is provided with a counterbore (10) capable of accommodating the head part of the bolt (9).

10. The support ring clamp of claim 5, wherein, Further comprising a shaping cover (13), and the edge of the shaping cover (13) is provided with a shaping groove capable of pressing and shaping the top of the support ring protrusion.

Images