Reinforced friction clutch

Abstract

The utility model discloses a reinforced friction clutch, and belongs to the field of clutches. The reinforced friction type clutch comprises a shaft sleeve, a driven disc rotationally arranged on the shaft sleeve, a dual steel disc arranged on the driven disc, a friction plate axially moving on the shaft sleeve, a driving disc axially moving on the shaft sleeve and a driving piece rotationally arranged on the shaft sleeve in a sleeving mode and used for driving the driving disc to move so that the friction plate can make contact with the dual steel disc. The multiple friction plates and the multiple dual steel plates are arranged, and the multiple dual steel plates and the multiple friction plates are sequentially arranged at intervals. According to the reinforced friction type clutch, the crescent elastic piece and the butterfly elastic piece are combined, the reset thrust is guaranteed, the friction plate and the dual steel plate can be completely separated during separation, and therefore the risk that the friction plate is abraded due to the fact that the friction plate and the dual steel plate are not completely separated during separation is reduced, the service life of the friction plate is prolonged, and the service life of the clutch is prolonged. And the replacement frequency of the friction plate is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of clutches, and in particular to a reinforced friction clutch. Background Art

[0002] The clutch is a common component in mechanical transmission, which can separate or connect the transmission system at any time. Figure 5 As shown, when the conventional friction clutch is engaged, the driving member 6' drives the driving plate 5' to move on the shaft sleeve 1', so that the driving plate 5' pushes the friction plate 4' and the dual steel plate 3' to move, so that the friction plate 4' contacts the dual steel plate 3', and then transfers the kinetic energy to the driven plate 2', thereby realizing kinetic energy transmission; when disengaging, after the driving member 6' is disconnected, the friction plate 4' and the dual steel plate 3' are reset and separated under the elastic force of the butterfly spring plate 7'.

[0003] Although the traditional friction clutch can separate the friction plate and the dual steel plate when disengaging, it only relies on the elastic force of the butterfly spring to reset and separate during use. It is easy for the friction plate and the dual steel plate to be incompletely separated, which affects the service life of the friction plate. The friction plate needs to be replaced frequently, which is extremely inconvenient to use.

[0004] Therefore, the present application provides a reinforced friction clutch to solve the above problems. Utility Model Content

[0005] The present application provides a reinforced friction clutch, aiming to solve the problem in the background technology that the existing friction clutch only relies on butterfly springs to reset and separate the friction plate and the dual steel plate, which is prone to incomplete separation and affects the service life of the friction plate.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a reinforced friction clutch, comprising a shaft sleeve, a driven plate rotatably arranged on the shaft sleeve, a dual steel plate arranged on the driven plate, a friction plate axially moving on the shaft sleeve, a driving plate axially moving on the shaft sleeve, and a driving member rotatably mounted on the shaft sleeve for driving the driving plate to move so that the friction plate contacts the dual steel plate, wherein a plurality of friction plates and a plurality of dual steel plates are arranged, and a plurality of the dual steel plates and a plurality of friction plates are arranged in sequence at intervals; a support plate is fixedly mounted on the shaft sleeve at a position corresponding to one end of the driven plate close to the driving plate; wherein butterfly-shaped spring plates for moving and resetting the friction plate and the driving plate are arranged in sequence at intervals between the support plate, the plurality of friction plates and the driving plate.

[0007] In order to completely separate the friction plate from the dual steel plate when disengaging, the friction clutch further includes at least three crescent-shaped spring pieces distributed in an annular array on the dual steel plate, and the crescent-shaped spring pieces are located at a position on one side of the dual steel plate away from the shaft sleeve to move and reset the dual steel plate. In this way, when disengaging, the friction plate and the drive plate are moved and reset by the elastic force of the butterfly spring piece, and the dual steel plate is moved and reset by the elastic force of the crescent-shaped spring piece, so that the friction plate is completely separated from the support plate, the dual steel plate and the drive plate, thereby reducing the risk of wear of the friction plate due to incomplete separation, increasing the service life of the friction plate, and reducing the replacement frequency of the friction plate.

[0008] Preferably, in order to drive the dual steel sheets to move and reset when disengaging, the crescent-shaped spring sheet includes a first support portion fixed on the dual steel sheet, a bending portion located at both ends of the first support portion, and a first contact portion located at one end of the bending portion away from the first support portion; wherein the bending portions at both ends of the first support portion are symmetrically arranged. In this way, when disengaging, under the elastic force of the crescent-shaped spring sheet, the bending portion is restored, so that under the action of the first contact portion and the first support portion, the dual steel sheet moves away from the driven disk on the shaft sleeve, so that the dual steel sheet moves and resets.

[0009] Preferably, in order to facilitate the installation and use of the crescent-shaped spring piece, the bent portion extends along the length direction of the first support portion toward one end away from the first support portion, and the first contact portion is arranged in parallel with the first support portion. In this way, the crescent-shaped spring piece can be installed on the friction plate through the first support portion, and the first contact portion can stably contact the contact point, so that the bent portion deforms under the action of applied pressure, and when the pressure is released, the bent portion is deformed and restored, thereby forming a reset thrust to move and reset the dual steel sheets.

[0010] Preferably, the driving member is a linear cylinder.

[0011] Preferably, in order to separate the driven disk and the driving member from the sleeve and realize power cut-off or transmission, the sleeve is fixedly provided with a first bearing at positions corresponding to the driven disk and the cylinder of the driving member, and the driving disk is fixedly provided with a second bearing connected to the piston disk of the driving member. In this way, when disengaged, the sleeve only drives the driving disk to rotate through the action of the first bearing and the second bearing; and when engaged, the sleeve drives the driving disk to rotate while driving the driven disk to rotate, realizing power transmission.

[0012] Preferably, in order to ensure the stability of the butterfly spring piece structure and improve the service life of the butterfly spring piece, the butterfly spring piece is coaxially arranged with the friction plate, and the butterfly spring piece includes a second support portion connected to the friction plate and the driven disk, and a second contact portion distributed in an annular array at one end of the second support portion away from the friction plate, and the inner diameter of the butterfly spring piece increases from the second support portion to the second contact portion. In this way, an external slotted structure is formed between the second contact portion and the second support portion, and when deformed by force, the second support portion deforms toward the end close to the second contact portion. Compared with the existing internal slotted butterfly spring piece, its structure is stable, and the risk of disk breakage and permanent deformation can be effectively reduced, thereby improving the service life of the butterfly spring piece.

[0013] The reinforced friction clutch adopts a combination of crescent-shaped spring pieces and butterfly-shaped spring pieces to ensure the reset thrust, so that the friction plate and the dual steel plate can be completely separated when disengaged, thereby reducing the risk of friction plate wear caused by incomplete separation of the friction plate and the dual steel plate during disengagement, thereby increasing the service life of the friction plate, reducing the frequency of replacement of the friction plate, and being easy to use;

[0014] The butterfly spring of the reinforced friction clutch adopts a second supporting portion and a second contact portion to form an external slotted structure, which can effectively ensure the stability of the structure, reduce the risk of spring fragment breakage and permanent deformation, and increase the service life of the butterfly spring fragment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic cross-sectional structure diagram of a reinforced friction clutch;

[0016] Figure 2 It is a schematic diagram of the assembly structure of the butterfly spring piece and the crescent spring piece in the reinforced friction clutch;

[0017] Figure 3 It is a schematic diagram of the structure of the crescent-shaped spring in the reinforced friction clutch;

[0018] Figure 4 It is a schematic diagram of the structure of a butterfly spring in a reinforced friction clutch;

[0019] Figure 5 It is a schematic diagram of the three-dimensional structure of a traditional friction clutch.

[0020] In the figure:

[0021] 1. Bushing; 11. First bearing;

[0022] 2. Driven plate; 3. Dual steel plates; 4. Friction plates;

[0023] 5. driving plate; 51. second bearing;

[0024] 6. Driving member; 61. Cylinder body; 62. Piston disc;

[0025] 7. butterfly-shaped spring; 71. second supporting portion; 72. second contact portion;

[0026] 8. Crescent-shaped spring piece; 81. First supporting portion; 82. Bending portion; 83. First contact portion. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] Example 1

[0029] This embodiment provides a reinforced friction clutch, such as Figure 1 , Figure 2 and Figure 3 As shown, the reinforced friction clutch comprises a sleeve 1, a driven plate 2 rotatably arranged on the sleeve 1, a dual steel plate 3 arranged on the driven plate 2, a friction plate 4 axially moving on the sleeve 1, a driving plate 5 axially moving on the sleeve 1, and a driving member 6 rotatably mounted on the sleeve 1 for driving the driving plate 5 to move so that the friction plate 4 contacts the dual steel plate 3, a plurality of friction plates 4 and dual steel plates 3 are arranged, and a plurality of dual steel plates 3 and a plurality of friction plates 4 are arranged in sequence at intervals; a support plate 12 is fixedly mounted on the sleeve 1 at a position corresponding to one end of the driven plate 2 close to the driving plate 5; wherein, butterfly springs 7 for moving and resetting the friction plates 4 and the driving plate 5 are arranged in sequence at intervals between the support plate 12, the plurality of friction plates 4 and the driving plate 5.

[0030] Different from the prior art, the friction clutch further comprises at least three crescent-shaped spring pieces 8 distributed in an annular array on the dual steel sheets 3. The crescent-shaped spring pieces 8 are located on one side of the dual steel sheets 3 away from the shaft sleeve 1 and are used to move and reset the dual steel sheets 3.

[0031] When engaging, the driving member 6 pushes the driving plate 5 to move on the sleeve 1 close to the friction plate 4, thereby pushing the friction plate 4 to move on the sleeve 1 close to the support plate 12, and the friction plate 4 contacts the dual steel plate 3, so that the dual steel plate 3 moves close to the driven plate 2, so that the friction plate 4 and the dual steel plate 3 are in close contact, and then drives the driven plate 2 to rotate, and transmits the kinetic energy to the driven plate 2, so as to achieve kinetic energy transmission; when disengaging, under the elastic force of the butterfly spring 7, the friction plate 4 moves away from the driven plate 2 on the sleeve 1, so that the friction plate 4 moves and resets, and under the elastic force of the crescent spring 8, the dual steel plate 3 moves and resets on the driven plate 2, so that the friction plate 4 is separated from the support plate 12, the dual steel plate 3 and the driving plate 5, so as to achieve the disconnection of kinetic energy. Among them, the driving member 6 is a linear cylinder.

[0032] Furthermore, the first bearing 11 is fixedly mounted on the sleeve 1 at the positions corresponding to the driven disc 2 and the cylinder body 61 of the driving member 6, and the second bearing 51 connected to the piston disc 62 of the driving member 6 is fixedly mounted on the driving disc 5; the driven disc 2 and the cylinder body 61 of the driving member 6 are separated from the sleeve 1 by the first bearing 11, and the piston disc 62 of the driving member 6 is separated from the driving disc 5 by the second bearing 51. When disengaged, the driving disc 5 rotates with the sleeve 1; and when engaged, the driven disc 2, under the action of the driving disc 5, rotates simultaneously with the driving disc 5 and the sleeve 1 to realize kinetic energy transmission.

[0033] Specifically, the crescent-shaped spring piece 8 includes a first support portion 81 fixed on the dual steel sheet 3, a bending portion 82 located at both ends of the first support portion 81, and a first contact portion 83 located at one end of the bending portion 82 away from the first support portion 81; wherein the bending portions 82 at both ends of the first support portion 81 are symmetrically arranged; when combined, when the dual steel sheet 3 is forced to move, the dual steel sheet 3 drives the first support portion 81 to move, when the first contact portion 83 of the crescent-shaped spring piece 8 on one of the two adjacent dual steel sheets 3 contacts with a side of the adjacent dual steel sheet 3 away from the first support portion 81, under the action of continuous extrusion pressure, the bending portion 82 is deformed; and when disengaged, the thrust of the dual steel sheet 3 is released, and under the elastic force of the crescent-shaped spring piece 8, the bending portion 82 recovers its deformation, pushing the dual steel sheet 3 to move and reset, thereby realizing the reset of the dual steel sheet 3.

[0034] In order to facilitate the installation and use of the crescent-shaped spring piece 8, the bending portion 82 extends along the length direction of the first support portion 81 toward one end away from the first support portion 81, and the first contact portion 83 is arranged in parallel with the first support portion 81. It can be understood that the first support portion 81 is a plane, which can stably contact with the surface of the dual steel sheet 3, facilitating the installation of the crescent-shaped spring piece 8, and the first contact portion 83 is parallel to the first support portion 81, so that after the dual steel sheet 3 moves, in the initial contact state, the first contact portion 83 and the contact point are in surface contact, which can effectively ensure the stability of the contact point of the crescent-shaped spring piece 8.

[0035] It should be noted that the contact point of the crescent-shaped spring piece 8 on the dual steel sheet 3 near one end of the driven disk 2 among the plurality of dual steel sheets 3 is on the driven disk 2, so that the plurality of dual steel sheets 3 can complete the resetting work under the action of its elastic force.

[0036] Example 2

[0037] The butterfly spring used in the existing friction clutch generally consists of a supporting part and a contact part distributed in a ring array on the supporting part. The inner diameter decreases from the supporting part to the contact part, forming an internal groove structure. When subjected to force and compression, the contact part is deformed by the force on the supporting part, and its structural stability is poor. After long-term use, it is prone to permanent deformation and breakage, which affects the service life of the butterfly spring.

[0038] In order to improve the stability of the butterfly spring structure and ensure its service life; different from Example 1, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the butterfly spring piece 7 is coaxially arranged with the friction plate 4, and the butterfly spring piece 7 includes a second support portion 71 and a second contact portion 72 distributed in a ring array at one end of the second support portion 71, and the inner diameter of the butterfly spring piece 7 increases successively from the second support portion 71 to the second contact portion 72.

[0039] It can be further understood that when the butterfly spring piece 7 is squeezed and stressed, the second support portion 71 moves toward one end of the second contact portion 72, so that the second contact portion 72 is deformed from the inside to the outside. Compared with the existing deformation from the outside to the inside, its structure is more stable, and can effectively reduce the risk of breakage and permanent deformation of the butterfly spring piece 7 after long-term use, thereby increasing the service life of the butterfly spring piece 7.

[0040] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A reinforced friction clutch, comprising a sleeve (1), a driven plate (2) rotatably mounted on the sleeve (1), a dual steel plate (3) mounted on the driven plate (2), a friction plate (4) axially movable on the sleeve (1), a driving plate (5) axially movable on the sleeve (1), and a driving member (6) rotatably mounted on the sleeve (1) for driving the driving plate (5) to move so that the friction plate (4) contacts the dual steel plate (3), wherein a plurality of the friction plates (4) and the dual steel plates (3) are provided, and the plurality of the dual steel plates (3) and the plurality of the friction plates (4) are arranged in sequence at intervals; a support plate (12) is fixedly mounted on the sleeve (1) at a position corresponding to one end of the driven plate (2) close to the driving plate (5); wherein: A butterfly-shaped spring piece (7) for moving and resetting the friction plate (4) and the driving plate (5) is sequentially arranged at intervals between the supporting plate (12), the plurality of friction plates (4) and the driving plate (5); The feature of the invention is that the friction clutch further comprises at least three crescent-shaped spring pieces (8) distributed in a ring array on the dual steel sheets (3); the crescent-shaped spring pieces (8) are located at a position on one side of the dual steel sheets (3) away from the shaft sleeve (1) and are used to move and reset the dual steel sheets (3).

2. The reinforced friction clutch according to claim 1, characterized in that: The crescent-shaped spring piece (8) comprises a first supporting portion (81) fixed on the dual steel sheet (3), a bending portion (82) located at both ends of the first supporting portion (81), and a first contact portion (83) located at one end of the bending portion (82) away from the first supporting portion (81); wherein the bending portions (82) at both ends of the first supporting portion (81) are symmetrically arranged.

3. The reinforced friction clutch according to claim 2, characterized in that: The bending portion (82) extends along the length direction of the first supporting portion (81) toward one end away from the first supporting portion (81), and the first contact portion (83) is arranged parallel to the first supporting portion (81).

4. The reinforced friction clutch according to claim 1, characterized in that: The driving member (6) is a linear cylinder.

5. The reinforced friction clutch according to claim 4, characterized in that: A first bearing (11) is fixedly mounted on the shaft sleeve (1) at positions corresponding to the driven disc (2) and the cylinder body (61) of the driving member (6), and a second bearing (51) connected to the piston disc (62) of the driving member (6) is fixedly mounted on the driving disc (5).

6. The reinforced friction clutch according to any one of claims 1 to 5, characterized in that: The butterfly-shaped spring piece (7) is coaxially arranged with the friction plate (4), and comprises a second supporting portion (71) and a second contact portion (72) distributed in an annular array at one end of the second supporting portion (71), and the inner diameter of the butterfly-shaped spring piece (7) increases sequentially from the second supporting portion (71) to the second contact portion (72).

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