阅读说明：本技术 离合器 (Clutch device ) 是由 向雨 向光恒 于 2021-09-01 设计创作，主要内容包括：本发明公开了一种离合器,离合器包括：密封罩、支撑板、电推组件、主轴、内轴套、外轴套,密封罩开设有腔体；支撑板盖设于密封罩的开口端；电推组件设于腔体,电推组件包括推杆,支撑板对应推杆开设有通孔,通孔设置于密封圈,推杆穿设于通孔的密封圈；主轴一侧用轴承滚动到支撑板,另一端滚动连接到设于支撑板背离密封罩的一侧,主轴远离密封罩的一端设置有第一离合片；内轴套设于主轴的外侧壁,内轴套连接于推杆,内轴套远离密封罩的一端设置有第二离合片,第一离合片的耦合面与第二离合片的耦合面相对设置。本发明能够保证离合器润滑的同时,还能够保证离合器正常工作。(The invention discloses a clutch, which comprises: the electric spindle comprises a sealing cover, a supporting plate, an electric pushing assembly, a spindle, an inner shaft sleeve and an outer shaft sleeve, wherein the sealing cover is provided with a cavity; the supporting plate is covered at the opening end of the sealing cover; the electric pushing assembly is arranged in the cavity and comprises a push rod, the supporting plate is provided with a through hole corresponding to the push rod, the through hole is formed in the sealing ring, and the push rod penetrates through the sealing ring of the through hole; one side of the main shaft rolls to the supporting plate by a bearing, the other end of the main shaft rolls to one side of the supporting plate away from the sealing cover, and one end of the main shaft away from the sealing cover is provided with a first clutch plate; the lateral wall of main shaft is located to the inner shaft cover, and inner shaft cover connects in the push rod, and the one end that the sealed cowling was kept away from to the inner shaft cover is provided with the second clutch disc, and the coupling face of first clutch disc sets up with the coupling face of second clutch disc relatively. The invention can ensure the clutch to be lubricated and can also ensure the clutch to work normally.)

1. A clutch, characterized in that the clutch comprises:

the sealing cover is provided with a cavity;

the supporting plate is covered at the opening end of the sealing cover;

the electric pushing assembly is arranged in the cavity and comprises a push rod, the supporting plate is provided with a through hole corresponding to the push rod, the through hole is formed in the sealing ring, and the push rod penetrates through the sealing ring of the through hole;

the main shaft is arranged on one side, away from the sealing cover, of the supporting plate, and a first clutch disc is arranged at one end, away from the sealing cover, of the main shaft; and

the inner shaft sleeve is arranged on the outer side wall of the main shaft and connected with the push rod, a second clutch plate is arranged at one end, away from the sealing cover, of the inner shaft sleeve, and the coupling surface of the first clutch plate is opposite to the coupling surface of the second clutch plate.

2. The clutch of claim 1, further comprising a stop collar disposed at an end of the push rod distal from the support plate.

3. The clutch of claim 2, further comprising a first bearing disposed between the retaining ring and the inner sleeve.

4. The clutch of claim 3, wherein the first bearing includes a first retainer ring and a plurality of balls embedded in the first retainer ring, the first retainer ring being disposed in the retainer ring, the first bearing further including an outer ring that overlies the first retainer ring.

5. The clutch according to any one of claims 1 to 4, wherein the clutch further comprises a fixing bracket and a second bearing, the fixing bracket is arranged on one side of the supporting plate, which faces away from the sealing cover, the main shaft penetrates through the fixing bracket, the fixing bracket is connected to the push rod, and the second bearing is arranged between the fixing bracket and the push rod.

6. The clutch of claim 5, wherein the electric push assembly comprises a coil support and an iron core, the coil support is fixed in the sealing cover, the iron core is arranged on the coil support, and the coil support is wound with a coil;

the electric pushing assembly further comprises an armature, the armature is arranged on one side, back to the supporting plate, of the coil support, and the armature is connected to the push rod.

7. The clutch of claim 6, further comprising a third bearing, wherein the support plate faces away from a side of the seal housing, and wherein the main shaft is coupled to the third bearing.

8. The clutch of claim 6, further comprising a damper disposed between the first clutch plate and the inner sleeve.

9. The clutch of claim 6, further comprising a return spring disposed between the first clutch plate and the inner second clutch plate.

10. The clutch of claim 6, further comprising an outer sleeve, wherein the outer sleeve is disposed on an outer sidewall of the inner sleeve, the outer sleeve is connected to a third clutch plate, the inner sleeve is connected to a fourth clutch plate, and a coupling surface of the third clutch plate is disposed opposite to a coupling surface of the fourth clutch plate.

Technical Field

The invention relates to the technical field of braking, in particular to a clutch.

Background

A clutch is arranged between the engine and the gearbox, and the connection between the engine and the gearbox is completed through the clutch. The clutch has friction during clutching and therefore the clutch needs to be placed in a chamber with lubricating oil. However, the clutch itself also has an electrical connection structure, if the electrical connection structure is immersed in the lubricating oil, the lubricating oil will spread to the electrical connection structure, and the electrical connection structure cannot operate under the influence of the lubricating oil, so that the clutch cannot work.

Disclosure of Invention

Based on this, to the problem that the electric connection structure of present clutch receives the influence of lubricating oil and can't operate, leads to the unable work of clutch, it is necessary to provide a clutch, aims at guaranteeing that the clutch is lubricated, can also guarantee that the clutch normally works simultaneously.

To achieve the above object, the present invention provides a clutch, including:

the sealing cover is provided with a cavity;

the supporting plate is covered at the opening end of the sealing cover;

the electric pushing assembly is arranged in the cavity and comprises a push rod, the supporting plate is provided with a through hole corresponding to the push rod, the through hole is formed in the sealing ring, and the push rod penetrates through the sealing ring of the through hole;

the main shaft is arranged on one side, away from the sealing cover, of the supporting plate, and a first clutch disc is arranged at one end, away from the sealing cover, of the main shaft; and

the inner shaft sleeve is arranged on the outer side wall of the main shaft and connected with the push rod, a second clutch plate is arranged at one end, away from the sealing cover, of the inner shaft sleeve, and the coupling surface of the first clutch plate is opposite to the coupling surface of the second clutch plate.

In one embodiment, the clutch further comprises a limit ring, and the limit ring is arranged at one end, far away from the support plate, of the push rod.

In one embodiment, the clutch further includes a first bearing disposed between the retaining ring and the inner sleeve.

In one embodiment, the first bearing includes a first fixed ring and a plurality of balls, the balls are embedded in the first fixed ring, the first fixed ring is disposed on the limit ring, and the first bearing further includes an outer ring, and the outer ring covers the first fixed ring.

In one embodiment, the clutch further includes a fixing bracket and a second bearing, the fixing bracket is disposed on a side of the supporting plate facing away from the sealing cover, the main shaft penetrates through the fixing bracket, the fixing bracket is connected to the push rod, and the second bearing is disposed between the fixing bracket and the push rod.

In one embodiment, the electric pushing assembly comprises a coil support and an iron core, the coil support is fixed in the sealing cover, the iron core is arranged on the coil support, and a coil is wound on the coil support;

the electric pushing assembly further comprises an armature, the armature is arranged on one side, back to the supporting plate, of the coil support, and the armature is connected to the push rod.

In one embodiment, the clutch further includes a third bearing, the support plate faces away from one side of the seal cover, and the main shaft is connected to the third bearing.

In one embodiment, the clutch further comprises a buffer member, and the buffer member is arranged between the first clutch plate and the inner shaft sleeve.

In one embodiment, the clutch further comprises a return elastic member, and the return elastic member is arranged between the first clutch plate and the inner second clutch plate.

In one embodiment, the clutch further includes an outer sleeve, the outer sleeve is disposed on the outer side wall of the inner sleeve, the outer sleeve is connected with a third clutch plate, the inner sleeve is connected with a fourth clutch plate, and a coupling surface of the third clutch plate is opposite to a coupling surface of the fourth clutch plate.

In the technical scheme of the invention, the electric pushing assembly drives the inner shaft sleeve to move through the push rod, so that the first clutch plate and the second clutch plate are coupled together, and the inner shaft sleeve drives the main shaft to rotate. Wherein, the electric push component works under the instruction of the electric signal. The electric pushing assembly is sealed through the sealing cover and the supporting plate, the sealing ring is further arranged at the position, where the push rod of the electric pushing assembly penetrates through the supporting plate, the electric pushing assembly and the external environment are further separated, and the electric pushing assembly can work normally. Therefore, the clutch can be placed in the oil cavity, and dry-wet separation is completed through the sealing cover, the supporting plate and the sealing ring. The clutch can be ensured to normally work while the clutch is lubricated.

Drawings

FIG. 1 is a schematic cross-sectional view of one embodiment of a clutch of the present invention;

FIG. 2 is a schematic structural view of the center subassembly of FIG. 1 in accordance with the present invention;

FIG. 3 is an exploded view of the support plate and coil support of FIG. 1 in accordance with the present invention;

FIG. 4 is a structural schematic of the coil carrier and armature of FIG. 1 in accordance with the present invention;

FIG. 5 is a schematic view of the first retainer ring and balls of FIG. 1 in accordance with the present invention;

FIG. 6 is a schematic illustration of the construction of the first clutch plate and the second clutch plate of FIG. 1 in accordance with the present invention;

FIG. 7 is a schematic structural diagram of another embodiment of the clutch of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

In the related art, a clutch is provided between the engine and the transmission, and the connection between the engine and the transmission is accomplished by the clutch. The clutch has friction during clutching and therefore the clutch needs to be placed in a chamber with lubricating oil. However, the clutch itself also has an electrical connection structure, if the electrical connection structure is immersed in the lubricating oil, the lubricating oil will spread to the electrical connection structure, and the electrical connection structure cannot operate under the influence of the lubricating oil, so that the clutch cannot work.

In order to solve the above problem, referring to fig. 1 to 3, the present embodiment provides a clutch including: the seal housing 10, the support plate 20, the electric propulsion assembly 30, the main shaft 40, and the inner hub 50. The sealing cover 10 is provided with a cavity, and the supporting plate 20 is covered on the opening end of the sealing cover 10. The sealing cover 10 and the supporting plate 20 form a sealing cavity, the electric thruster assembly 30 is disposed in the sealing cavity, the inner shaft sleeve 50 is sleeved on the outer side wall of the main shaft 40, and the connection between the inner shaft sleeve 50 and the main shaft 40 is completed through the coupling of the first clutch plate 410 and the second clutch plate 510.

The electric pushing assembly 30 is arranged in the cavity, the electric pushing assembly 30 comprises a push rod 310, the support plate 20 is provided with a through hole 210 corresponding to the push rod 310, the through hole 210 is arranged in the sealing ring 220, and the push rod 310 penetrates through the sealing ring 220 of the through hole 210; the sealing ring 220 is generally made of rubber, and the sealing ring 220 can prevent the push rod 310 from isolating the external environment during the moving process. It should be noted that the sealing cover 10 may also be provided with a wire through hole, through which a signal wire is disposed, and the signal wire is connected to the electric push assembly 30. Similarly, the sealing ring 220 is also required to be arranged at the position of the wire through hole. Wherein, be provided with the standing groove on the downthehole wall of through-hole 210, sealing washer 220 nests in the standing groove.

The main shaft 40 is arranged on one side of the support plate 20 departing from the sealing cover 10, and one end of the main shaft 40 far away from the sealing cover 10 is provided with a first clutch plate 410; the inner sleeve 50 is sleeved on the outer side wall of the main shaft 40, the inner sleeve 50 is connected to the push rod 310, a second clutch plate 510 is disposed at one end of the inner sleeve 50 away from the sealing cover 10, and a coupling surface of the first clutch plate 410 is opposite to a coupling surface of the second clutch plate 510. In the initial state, the first clutch plate 410 and the second clutch plate 510 are spaced apart, and the push rod 310 pushes the inner hub 50 to move away from the sealing cap 10. The first clutch plate 410 approaches the second clutch plate 510 until the first clutch plate 410 and the second clutch plate 510 are coupled and abutted. The coupling surface of the first clutch plate 410 has the engagement teeth 90, and the coupling surface of the second clutch plate 510 also has the engagement teeth 90, and the rotational force of the inner hub 50 can be transmitted to the spindle 40 by the engagement of the engagement teeth 90 of the first clutch plate 410 and the engagement teeth 90 of the second clutch plate 510. The main shaft 40 rotates with the inner hub 50.

In the technical solution of this embodiment, the electric pushing assembly 30 drives the inner sleeve 50 to move through the push rod 310, so that the first clutch plate 410 and the second clutch plate 510 are coupled together, and the inner sleeve 50 drives the main shaft 40 to rotate. Wherein the electric pushing assembly 30 operates under the instruction of the electric signal. The electric pushing assembly 30 is sealed by the sealing cover 10 and the supporting plate 20, and the sealing ring 220 is further arranged at the position where the push rod 310 of the electric pushing assembly 30 penetrates through the supporting plate 20, so that the electric pushing assembly 30 is further separated from the external environment, and the electric pushing assembly 30 can normally work. It can be seen that the clutch can be placed in the oil chamber and the wet and dry separation is accomplished by the seal cap 10, the support plate 20 and the seal ring 220. The clutch can be ensured to normally work while the clutch is lubricated.

In one embodiment, the contact area between the push rod 310 and the inner sleeve 50 is small for better transmission of the pushing force. The clutch further includes a limiting ring 610, and the limiting ring 610 is disposed at an end of the push rod 310 away from the support plate 20. The push rod 310 applies thrust to the limit ring 610, the cross section of the inner shaft sleeve 50 is also of an annular structure, and the thrust application area is increased through the abutting joint of the limit ring 610 and the inner shaft sleeve 50, so that the thrust can be improved. It should be noted that, in order to ensure that the thrust is applied more uniformly, two push rods 310 are provided, and the two push rods 310 are symmetrically arranged in the radial direction of the stop collar 610.

In one embodiment, to reduce friction between the push rod 310 and the inner hub 50. The clutch further includes a first bearing 620, the first bearing 620 being disposed between the retaining ring 610 and the inner hub 50. Through the first bearing 620, the inner sleeve 50 prevents the limiting ring 610 from rotating in the rotating process, so that the radial rotating force applied to the push rod 310 is reduced, and the friction damage of the push rod 310 is avoided.

In the above embodiment, referring to fig. 5, the first bearing 620 includes a first fixing ring 621 and a plurality of balls 623, the plurality of balls 623 are embedded in the first fixing ring 621, the first fixing ring 621 is disposed on the retaining ring 610, the first bearing 620 further includes an outer ring 622, and the outer ring 622 is covered on the first fixing ring 621. It will be appreciated that the outer ring 622 abuts the end face of the inner hub 50 and the inner hub 50 rotates the outer ring 622. The balls 623 can roll in the first retainer ring 621, whereby the rotational force of the outer ring 622 is applied to the balls 623, and the rotational force of the outer ring 622 is absorbed by the rolling of the balls 623. Thus, the radial rotational force of the outer ring 622 is not applied to the stop collar 610, the stop collar 610 remains stationary, and the push rod 310 is not subjected to the radial rotational force of the outer ring 622. The retainer ring may be formed by pressing two irons together.

In one embodiment, to ensure the securement of the spindle 40. The clutch further comprises a fixing bracket 650 and a second bearing 630, wherein the fixing bracket 650 is arranged on one side of the support plate 20, which faces away from the sealing cover 10, the main shaft 40 penetrates through the fixing bracket 650, the fixing bracket 650 is connected to the push rod 310, and the second bearing 630 is arranged between the fixing bracket 650 and the push rod 310. The main shaft 40 can be stably fixed to one side of the sealing cap 10 by the fixing bracket 650. And is defined by the connection between the fixed bracket 650 and the push rod 310, further defining the position of the main shaft 40. In order to avoid friction between the main shaft 40 and the push rod 310 and reduce the influence of the rotation of the main shaft 40 on the push rod 310, a second bearing 630 is arranged between the fixed bracket 650 and the push rod 310, and the second bearing 630 absorbs the influence of the rotation of the main shaft 40. Specifically, an inner ring 632 is provided at the second bearing 630, a second stationary ring 631 is provided between the inner ring 632 and the retainer ring 610, and a plurality of balls 623 are provided at the second stationary ring 631, so that relative rotation of the inner ring 632 and the retainer ring 610 can be achieved.

Referring to fig. 4, in one embodiment, the electric pushing assembly 30 includes a coil support 320 and an iron core 330, the coil support 320 is fixed in the sealed cover 10, the iron core 330 is disposed on the coil support 320, and the coil support 320 is wound with a coil; the electric push assembly 30 further includes an armature 340, the armature 340 is disposed on a side of the coil support 320 facing away from the support plate 20, and the armature 340 is connected to the push rod 310. The coil support 320 may be fixed to the support plate 20 or may be fixed to the hermetic enclosure 10. When the coil is energized, an electromagnetic field is generated, and the iron core 330 serves to reinforce the electromagnetic field. Under the action of the electromagnetic field, the armature 340 is moved toward the iron core 330 by the magnetic force, the armature 340 pushes the push rod 310 to link while moving, and the movement of the push rod 310 drives the inner shaft sleeve 50 to move, thereby completing the power connection between the inner shaft sleeve 50 and the main shaft 40.

In one embodiment, to further secure the spindle 40. The clutch further comprises a third bearing 640, the side of the support plate 20 facing away from the sealing cap 10, and the main shaft 40 is connected to the third bearing 640. The radial direction of the spindle 40 is thereby fixed by the fixing bracket 650, and one axial end of the spindle 40 is fixed to the surface of the support plate 20 facing away from the seal cover 10. In order to reduce friction between the main shaft 40 and the support plate 20, a third bearing 640 is provided between the main shaft 40 and the support plate 20. The rotational friction of the main shaft 40 on the support plate 20 is removed by the third bearing 640. Likewise, third bearing 640 also protects the stationary ring and balls 623, and balls 623 may slide on the stationary ring.

In one embodiment, referring to fig. 1 and 6, the clutch further includes a damper 810, and the damper 810 is disposed between the first clutch plate 410 and the inner sleeve 50. In order to avoid the rigid butt joint of the first clutch plate 410 and the second clutch plate 510, a buffer member 810 is arranged, when the inner shaft sleeve 50 moves towards the second clutch plate 510, the inner shaft sleeve 50 is firstly abutted to the buffer member 810, and the contact between the first clutch plate 410 and the second clutch plate 510 is softer through the buffer effect of the buffer member 810. The buffer 810 includes a spring, the buffer 810 is sleeved on the main shaft 40, one end of the spring is a pin end and is fixed on the main shaft 40 through the pin end, the inner shaft sleeve 50 is provided with a barrel groove 540 corresponding to the spring, and the fixed end of the spring can slide along the barrel groove 540. The spring is fixed on the main shaft 40 at a plurality of positions, so that the stress is more uniform. Note that the boss 530 is provided on the outer side of the inner boss 50.

Additionally, the first clutch plate 410 and the second clutch plate 510 may exhibit misaligned rotational friction resulting in a differential speed, in order to reduce such conditions. The area of the engagement teeth 90 of the first clutch plate 410 and the second clutch plate 510 is increased, and the engagement teeth 90 may be obliquely arranged in order to further improve the engagement force and reduce the speed difference per hour. In addition, the meshing teeth 90 are provided in plurality, and each meshing tooth 90 is provided in an arc shape, so that the meshing area is further increased.

In one embodiment, the transfer force separation is achieved for a fast speed. The clutch further includes a return spring 820, and the return spring 820 is disposed between the first clutch plate 410 and the inner second clutch plate 510. When the electric push assembly 30 is de-energized, the inner sleeve 50 loses pressure, and the restoring force of the restoring elastic member 820 acts to separate the first clutch plate 410 and the second clutch plate 510 from each other. The return spring 820 may also be a spring.

In one of the embodiments of the present application, bidirectional coupling may also be implemented. Referring to fig. 7, in particular, the clutch further includes an outer sleeve 70, the outer sleeve 70 is disposed on an outer side wall of the inner sleeve 50, the outer sleeve 70 is connected with a third clutch plate 710, the inner sleeve 50 is connected with a fourth clutch plate 520, and a coupling surface of the third clutch plate 710 is disposed opposite to a coupling surface of the fourth clutch plate 520. When the electric pushing assembly 30 is powered on, the first clutch plate 410 and the second clutch plate 510 are coupled and butted, and the rotating force of the inner sleeve 50 is transmitted to the main shaft 40. When the electric push assembly 30 is powered off, the first clutch plate 410 and the second clutch plate 510 are separated, the inner sleeve 50 moves toward the sealing cap 10, the third clutch plate 710 and the fourth clutch plate 520 are coupled and coupled, and the rotational force of the inner sleeve 50 is transmitted to the outer sleeve 70. In this embodiment, the inner hub 50 and the outer hub 70 may be connected, or the inner hub 50 and the main shaft 40 may be connected, as required. It should be noted that, when the inner sleeve 50 is connected to the outer sleeve 70, the electric pushing assembly 30 is powered off, the abutting force between the inner sleeve 50 and the spindle 40 is lost, a spring is disposed between the first clutch plate 410 and the second clutch plate 510 or between the inner sleeve 50 and the second clutch plate 510, the spring is elastically restored, and the inner sleeve 50 moves under the action of the spring, so that the third clutch plate 710 and the fourth clutch plate 520 are coupled.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.