CN104595378A

CN104595378A - Self-aligning clutch release bearing assembly

Info

Publication number: CN104595378A
Application number: CN201310525562.3A
Authority: CN
Inventors: 唐小超
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-10-31
Filing date: 2013-10-31
Publication date: 2015-05-06

Abstract

A self-aligning clutch release bearing assembly belongs to the field of automobile parts. Under the condition of self-aligning of the bearing assembly, dust is prevented from entering the bearing assembly and the service life of the bearing assembly is prolonged.

Description

A kind of self-aligning separable bearing of clutch assembly

Technical field

The invention belongs to auto parts machinery field, the self-aligning separable bearing of clutch assembly of particularly manual gear vehicle application.

Background technique

On current manual-gear vehicle, the clutch power carried out between motor with gearbox is also extensively adopted to disconnect and be communicated with, its working principle is driver's let slip the clutch, actuator drives clutch shifter, external force is applied to clutch compressing disc by clutch release bearing, thus make the friction plate of clutch be separated from each other or combine, because clutch is operationally rotation status, and clutch shifter is non rotating state, so, clutch release bearing total performance is by non-rotary pressure, be applied to a transition apparatus on the clutch compressing disc of rotation, if damaged, the inefficacy of clutch will be caused, travel to vehicle and cause danger, current clutch release bearing assembly is mostly by housing, bearing inner race, rolling element, bearing outer ring, be arranged on bearing two ends sealing cover, the compositions such as case, in order to ensure that bearing rotary center overlaps with the rotating center of clutch shaft, the internal diameter of present bearing inner race adopts the diameter being greater than axle journal on housing, be beneficial to the self-aligning of bearing, certain gap is left between such bearing inner race and housing axle journal, and this gap is open type in the course of the work, be easy to enter dust, enter into the dust in bearing, the normal work of bearing can be affected, increase the wearing and tearing of bearing, simultaneously, dust combines with the lubricating grease being injected into bearing, form block, when bearing High Rotation Speed, as easy as rolling off a log the sealing cover of bearing end to be damaged, the working life of bearing is shortened, and then cause the inefficacy of clutch.

Summary of the invention

For the defect of prior art, the present invention proposes a kind of self-aligning separable bearing of clutch assembly, comprises housing, bearing inner race, rolling element, bearing outer ring, bearing seal cover, case, it is characterized in that: also comprise dust guard; Bearing inner race is arranged on the axle journal of housing, the concentric outer that bearing outer ring is arranged on bearing inner race is connected with bearing inner race by rolling element, bearing inner race and bearing outer ring and rolling element form rolling bearing, bearing seal cover is arranged on bearing two ends, case is arranged on the outside of bearing, concentric with the axle journal place of housing, dust guard is arranged in the space between bearing inner race and housing axle journal or between bearing inner race lower end surface and housing axle journal lower end surface; This dust guard comprise dustproof element and and dustproof element fixing device, dustproof element adopts rubber, felt, fiber bundle, sponge blocks dust can have again flexible material and makes, and dustproof element fixing device adopts on housing axle journal or bearing inner race, to arrange circular groove, hole, pit or adopt together with dustproof element bond with housing or bearing inner race by binder, or dustproof element and housing or bearing inner race are fixed by employing compressing tablet, snap ring.

Beneficial effect

Beneficial effect of the present invention is: can effectively prevent dust from entering bearing end, extends bearing working life, and structure is simple, and installation and maintenance are convenient.

Accompanying drawing explanation

Fig. 1 is explosive view of the present invention

1. housing, 2. dust guard, 3. dust cover under bearing, 4. bearing outer ring, 5. rolling element, 6. dust cover on bearing, 7.. bearing inner race, 8. case.

Fig. 2 is erection drawing of the present invention

Fig. 3 is the sectional drawing of seal ring

21. skeletons, 22. wing limits, 23. annular muscle.

Embodiment

embodiment one:now by reference to the accompanying drawings, the present invention is further described, by bearing outer ring 4, bearing inner race 7 and rolling element 5 are assembled into rolling bearing, dust guard 3,6 is installed to the both ends of the surface up and down of bearing, dust guard 2 is installed in the circular groove at axle journal position of housing 1, in this example dust guard 2 adopt be elastic seal ring as dustproof element, the axle journal position of housing 1 arranges circular groove as dustproof element fixing device, this elastic seal ring, comprise skeleton 21, wing limit 22, annular muscle 23, adopts rubber material, in order to adapt to high temperature during bearing working, this rubber material preferably adopts temperature resistant rubber, seal ring is provided with wing limit 22, the size gap be greater than between bearing inner race 7 and housing 1 axle journal on its wing limit 22 add upper centring flying height and, its effect still can be kept in touch with bearing inner race 7 in bearing self-aligning process, thus play dustproof effect, the wing limit 22 of seal ring is provided with the muscle 23 of annular, its effect is the elasticity increasing wing limit 22, ensure the contact that wing limit 22 is good with bearing inner race 7 under bearing aligning state, the elastic seal ring that silicone rubber is made is adopted in this example, the skeleton part 21 of seal ring is sleeved in circular groove that the external diameter of the necked part of housing 1 is arranged, the internal diameter of seal ring is less than the diameter at the bottom of necked part circular groove of housing 1, combine closely with the circular groove bottom land of the internal diameter and housing 1 necked part that ensure skeleton part 21, and the sectional dimension of the skeleton 21 of seal ring be less than the internal orifice dimension of bearing inner race 7 and the necked part of housing 1 external diameter between monolateral gap, the size on its wing limit 22 is greater than the twice of this gap, its objective is that guarantee one is that seal ring can be installed to bearing inner race, between 7 and the external diameter of housing 1 necked part, two is when bearing self-aligning, when brearing bore and housing 1 axle journal form bias, the wing limit 22 of seal ring can ensure contact with brearing bore thus play dustproof effect, wing limit 22 is also provided with annular muscle 23, its effect is the elasticity increasing wing limit 22, due to stretching of the large distance of wing limit 22 demand fulfillment, dust-proof effect is affected in order to prevent wing limit 22 to be out of shape when flexible, annular muscle 23 can be good at wing limit 22 when bearing aligning forms bias, braced wing limit 22 and still can ensure and bearing inner race 7 close contact, the bearing housing assembled is installed on the axle journal of shell 1, ensure that seal ring is between brearing bore and the axle journal of housing 1 simultaneously, wing limit 22 can be one also can be multiple, and what this example adopted is two, the step part of bearing inner race 7 is positioned at the outside part of housing 1, cover on bearing by case 8, ensure the top of pedestal exponent part higher than case 8, the skirt end of case 8 is fastened in the dish-type position of housing 1 simultaneously, this completes the enforcement of this example.

Embodiment two: in this example, the installation of bearing and case 8 is with embodiment one, in this example, dust guard 2 adopts elastic seal ring as dustproof element, in the axle journal lower end surface of housing 1, circular groove is set as dustproof element fixing device, during installation, the skeleton 21 of elastic seal ring is installed in circular groove, the wing limit 22 of elastic seal ring is contacted with the internal diameter of bearing inner race 8, just completes this enforcement.

Embodiment three: in this example, and the installation of bearing and case 8 is with embodiment one, and in this example, dust guard 2 adopts elastic seal ring as dustproof element, the internal diameter of bearing inner race 7 arrange circular groove as dustproof element fixing device; Its skeleton 21 of elastic seal ring in this example is in outer ring, and wing limit 22 is at inner ring, during installation, skeleton 21 part of elastic seal ring is loaded in the circular groove on the inner hole wall of bearing inner race 7, make wing limit 22 and the housing journal contact of elastic seal ring, just complete this example and implement.

Embodiment four: in this example, and the installation of bearing and case 8, with embodiment one, in this example, adopts annular felt mattress as dustproof element, on housing 1 axle journal, arrange circular groove as dustproof element fixing device; What the thickness of annular felt mattress can not hinder bearing when should ensure bearing self-aligning moves radially as standard; During installation, the endoporus of annular felt mattress to be loaded in the circular groove on housing 1 axle journal and to clamp with circular groove, and then carrying out the installation of bearing, just completing the present embodiment.

Embodiment five: in this example, the installation of bearing and case 8 is with embodiment one, in this example, adopt elastic seal ring as dustproof element, housing 1 axle journal arranges blind hole or caves in as dustproof element fixing device, in this example, need to arrange corresponding projection on the skeleton of elastic seal ring, during installation by the projection on elastic packing ring framework with the hole on housing 1 axle journal or cave in corresponding, make the projection on elastic packing ring framework with the hole on housing 1 axle journal or cave in chimeric, play the effect of fixing elastic seal ring, prevent the elastic seal ring when bearing rotary from rotating thereupon, and then carry out the installation of bearing and case 8, just complete the present embodiment.

Embodiment six: in this example, the installation of bearing and case 8 is with embodiment one, in this example, adopt fiber cluster as dustproof element, fiber cluster skeleton is connected to form ring, and the fiber cluster in this example adopts brush palm fibre, and skeleton adopts Spring Steel Wire, adopt adhering method to brush brown bonding with Spring Steel Wire, form annular; Adopt and circular groove is set on housing axle journal as dustproof element fixing device, by bonding annular brush palm fibre, be installed to the circular groove on housing 1 axle journal, and then bearing and case 8 are installed, just complete the present embodiment.

Embodiment seven: in this example, the installation of bearing and case 8 is with embodiment one, in this example, adopt annular felt mattress as dustproof element, the internal diameter of bearing inner race 7 and lower edge portion are divided step is set, step arranges tapped hole, coordinate annular spring leaf and screw, adopt screw in compression spring sheet, spring sheet compresses annular felt mattress as dustproof element fixing device, during installation, step on the external diameter of annular felt mattress and an end face and bearing inner race 7 is adjacent to, presses spring sheet, compressed with screw, then bearing and case 8 are installed, just complete this example.

In a word, above embodiment is preferred version, and its embodiment can not be exhaustive, and its each scheme can cross one another, and the applicant states, any scheme formed that crosses one another thus, is all regarded as falling into technological scheme of the present invention.

Claims

1. a self-aligning separable bearing of clutch assembly, comprises housing, bearing inner race, rolling element, bearing outer ring, bearing seal cover, and case is characterized in that: also comprise dust guard; Bearing inner race is arranged on the axle journal of housing, the concentric outer that bearing outer ring is arranged on bearing inner race is connected with bearing inner race by rolling element, bearing inner race and bearing outer ring and rolling element form rolling bearing, bearing seal cover is arranged on bearing two ends, case is arranged on the outside of bearing, concentric with the axle journal place of housing, dust guard is arranged in the space between bearing inner race and housing axle journal or between bearing inner race lower end surface and housing axle journal lower end surface; This dust guard comprises dustproof element and and dustproof element fixing device.

2. a kind of self-aligning separable bearing of clutch assembly according to claim 1, is characterized in that: dustproof element adopts rubber, felt, fiber bundle, and sponge blocks dust can have again flexible material and make.

3. a kind of self-aligning separable bearing of clutch assembly according to claim 1, it is characterized in that: dustproof element fixing device adopts to arrange fixed structure on housing axle journal or bearing inner race, or adopt together with dustproof element bonds with housing or bearing inner race by binder.

4. a kind of self-aligning separable bearing of clutch assembly according to claim 1, is characterized in that: dustproof element is the elastic seal ring adopting silicone rubber to make, and comprises skeleton, wing limit, annular muscle.

5. a kind of self-aligning separable bearing of clutch assembly according to claim 4, it is characterized in that: the internal diameter of seal ring is less than the diameter at the bottom of necked part circular groove of housing, the sectional dimension of skeleton is less than the monolateral gap between the external diameter of the internal orifice dimension of bearing inner race and the necked part of housing, and the size on its wing limit is greater than the twice of this gap.

6. a kind of self-aligning separable bearing of clutch assembly according to claim 4, is characterized in that: wing limit is one or more.

7. a kind of self-aligning separable bearing of clutch assembly according to claim 1, is characterized in that: dustproof element fixing device is that housing journal outer surface or lower end surface are provided with circular groove.

8. a kind of self-aligning separable bearing of clutch assembly according to claim 1, is characterized in that: dustproof element fixing device be bearing inner race internal diameter on circular groove is set.

9. a kind of self-aligning separable bearing of clutch assembly according to claim 1, is characterized in that: dustproof element fixing device is that housing axle journal arranges blind hole or depression.

10. a kind of self-aligning separable bearing of clutch assembly according to claim 1, it is characterized in that: dustproof element fixing device is that the internal diameter of bearing inner race and lower edge portion are divided and arranged step, step arranges tapped hole, coordinate annular spring leaf and screw, adopt screw in compression spring sheet, spring sheet compresses dustproof element.