CN202149167U - Adjustor for middle-clearance self-regulating mechanism of automobile disc-type brake - Google Patents
Adjustor for middle-clearance self-regulating mechanism of automobile disc-type brake Download PDFInfo
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- CN202149167U CN202149167U CN201120237502U CN201120237502U CN202149167U CN 202149167 U CN202149167 U CN 202149167U CN 201120237502 U CN201120237502 U CN 201120237502U CN 201120237502 U CN201120237502 U CN 201120237502U CN 202149167 U CN202149167 U CN 202149167U
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- driving gear
- neck bush
- regulator
- disc brake
- adjustment
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Abstract
The utility model provides an adjustor for a middle-clearance self-regulating mechanism of an automobile disc-type brake, belonging to the automobile technology field. The adjustor solves the technical problem that a disengaging shaft and a separating base can be damaged when a torque between the disengaging shaft and the separating base is overlarge in the prior art. The adjustor for the middle-clearance self-regulating mechanism of the automobile disc-type brake comprises a main shaft as well as an inner bushing and a transmission gear which are sequentially sheathed on the main shaft, the inner bushing is linked with the transmission gear, and when the torque between the disengaging shaft and the separating base is overlarge, the disengaging shaft and the separating base can slip with each other, an adjusting sleeve is sheathed outside the inner bushing, and a one-way clutch is arranged between the adjusting sleeve and the inner bushing. In the adjustor, the inner bushing and the transmission gear are in a linkage relation, the disengaging shaft and the separating base can slip with each other when the torque between the disengaging shaft and the separating base is overlarge, so that the adjustor has a self-protecting function and improves the stability of the adjustor.
Description
Technical field
The utility model belongs to automobile technical field, relates to the clearance self-regulating mechanism in a kind of automotive disc brake, the regulator of particularly a kind of automotive disc brake intermediate gap self-adjustment structure.
Background technique
The drum-type of the break of modern Commercial car and disc type two major types, they are each has something to recommend him, but along with the improving constantly of the commercial car speed of a motor vehicle, adopt the commercial car of disk type braker increasing in recent years, and especially middle-and-high-ranking commercial car has generally all adopted disk type braker.
Automobile brake simply utilizes friction to convert kinetic energy to heat energy exactly, makes automobile lose kinetic energy and stops.Therefore, heat radiation is crucial to braking system.If braking system often is in the condition of high temperature, will hinder the transfer process of energy, cause braking ability to descend.Fleet-footed automobile, the heat that braking gets up to be produced is big more, and is also big more to the influence of braking ability.Resolve heat dissipation problem, the braking ability that improves automobile has also just been play a part to get half the result with twice the effort.So the wheel of modern Commercial car reduces the running temperature except using the aluminum alloy rim, also tends to adopt the disk type braker of good heat dispersion performance.
With respect to drum brake, disk type braker is being exported under the identical situation of braking moment size and fair less; Brake disc is minimum along the thermal expansion amount of thickness direction, can not resemble brake clearance obviously to be increased the thermal expansion of brake drum and cause brake-pedal travel excessive; Be easier to realize that the gap adjusts automatically, other maintenance reconditioning works are also easier.
Disk type braker comprises scotch block assembly, power unit, scotch block assembly driving mechanism and clearance self-regulating mechanism, and the scotch block assembly driving mechanism comprises respectively the push rod that links to each other with scotch block assembly with power unit.Comprise again in the clearance self-regulating mechanism that two are screwed onto two screwed pipes on the push rod respectively, the outer side surface of screwed pipe has the ring tooth, and this clearance self-regulating mechanism also comprises a finger, and the power unit of finger and disk type braker links to each other.
Like the gap automatic adjusting mechanism of the disclosed a kind of air-pressure disc brake of patent (CN201013811Y), comprise a driving shaft, an end of driving shaft connects positioning seat through needle bearing; Connect declutch shaft through bearing; Declutch shaft connects the gap positioning seat through the bearing of one-way rotation, between positioning seat and gap positioning seat, is provided with the taper stage clip, and the caliper of positioning seat and break links to each other; The other end of driving shaft is connected with fixed block; Fixed block places in the separation block, and and separation block between be provided with spring, separation block outreaches brake screw.This device can be realized the automatic adjustment in gap, but this device also exists certain shortcoming, when the moment of torsion between declutch shaft and the separation block is excessive, causes both damages easily.
Summary of the invention
The purpose of the utility model is the problems referred to above that exist to existing technology, and a kind of regulator of automotive disc brake intermediate gap self-adjustment structure that can self-protection when the moment of reaction that receives is excessive is provided.
The purpose of the utility model can realize through following technical proposal: the regulator of a kind of automotive disc brake intermediate gap self-adjustment structure; It is characterized in that; Comprise a main shaft and neck bush and the driving gear on the socket main shaft successively; Described neck bush and described driving gear are interaction relation; And when the moment of torsion between neck bush and the driving gear is excessive, can skid each other, the outside of described neck bush is arranged with the adjustment cover, is provided with overrunning clutch between described adjustment cover and the neck bush.
The working principle of this device is following: the clearance self-regulating mechanism in the automotive disc brake of automobile comprises that two are screwed onto two screwed pipes on the push rod respectively; The outer side surface of screwed pipe has the ring tooth; This clearance self-regulating mechanism also comprises a finger, and the power unit of finger and disk type braker links to each other.This regulator is arranged between two screwed pipes, and the ring tooth in the driving gear and the screwed pipe outside is meshed, when regulator is started working; Power unit drives finger; Finger drives adjustment cover forward rotation, and the adjustment cover drives the neck bush synchronous forward through overrunning clutch and rotates, and neck bush drives driving gear through interaction relation and rotates; Driving gear drives the ring tooth and rotates; The moving screwed pipe of ring cingulum rotates, and screwed pipe drives push rod through threaded connection relation and axially moves forward along it, and push rod promotes scotch block assembly and abuts on the brake disc.After braking process finishes; Regulator need reset, and power unit drives the finger counter-rotating, and finger drives adjustment cover backward rotation; Because the characteristic of the one-way rotation of overrunning clutch; When adjustment cover backward rotation, dally between adjustment cover and the neck bush, finger drive adjustment cover rotates until adjusting cover and returns back to original state.Be set to interaction relation between this device neck bush and the driving gear; When the moment of torsion between neck bush and the driving gear is excessive, can skid each other; Thereby guarantee can not kill each other between neck bush and the driving gear; Make this regulator have the self-protection function, improved the stability of this regulator.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure; Described driving gear interior edge face and neck bush exterior edge face lean, and when described neck bush rotates, can utilize the frictional force between the both ends of the surface to drive the driving gear rotation.Adopt end-face friction to come driving torque between driving gear and the neck bush, when the moment of torsion between neck bush and the driving gear is excessive, can skid each other.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure, the contact between described driving gear and the neck bush is conical surface contact.Conical surface exposure phase directivity for plane contact is better with stability.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure; The exterior edge face of described driving gear offers the groove that a side is the conical surface; The outer side surface of the front end of described neck bush is coniform; The front end of described neck bush is plugged in the groove, and the bore of described groove and the front end of neck bush are complementary.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure; Be provided with the elastic positioning machine structure that can make this driving gear produce inside bush side mobile trend between described driving gear and the main shaft; Described elastic positioning machine structure comprise be screwed onto on the main shaft and be positioned at the inner lock nut of driving gear, be provided with preloading spring between described lock nut and the driving gear.The elastic force of preloading spring abuts on the exterior edge face of neck bush the interior edge face of driving gear, makes both on the end face of contact, produce certain pretension frictional force.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure; The flange that has an annular on the interior edge face of described driving gear; One end of described preloading spring leans on lock nut, and the other end of this preloading spring is resisted against on the interior edge face of driving gear and is positioned at described flange.Flange plays the effect of radial location to preloading spring.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure, be provided with packing ring between described preloading spring and the lock nut.Packing ring makes an end of preloading spring and loosens between the nut and becomes present face contact by original line contact.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure, circumferentially to locate through flat key between described driving gear and the main shaft, described driving gear can be done axial slip along flat key on main shaft.Circumferentially rotate synchronously between driving gear and the main shaft, axially both can slide each other.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure, the exterior edge face of described adjustment cover has recess, and described recess can match with the finger in the clearance self-regulating mechanism.When being connected in the recess under the effect of finger at power unit, power unit can drive the adjustment cover through finger and rotate.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure, the inner end of described main shaft has a shaft shoulder, is provided with thrust-bearing between the described overrunning clutch and the shaft shoulder.The effect of thrust-bearing is a reverse active force to neck bush to be provided through overrunning clutch, and the end face of neck bush is resisted against on the driving gear.
In the regulator of above-mentioned a kind of automotive disc brake intermediate gap self-adjustment structure, the interior edge face of described neck bush has the retaining edge, and the interior edge face of described adjustment cover is resisted against described retaining along last.The adjustment cover carries out axial location through the retaining edge.
Compared with prior art; Be set to interaction relation between this device neck bush and the driving gear; When the moment of torsion between neck bush and the driving gear is excessive, can skid each other; Thereby guarantee can not kill each other between neck bush and the driving gear, make this regulator have the self-protection function, improved the stability of this regulator.Conical surface exposure phase directivity for plane contact is better with stability.The elastic force of preloading spring abuts on the exterior edge face of neck bush the interior edge face of driving gear, makes both on the end face of contact, produce certain pretension frictional force.
Description of drawings
Fig. 1 is the structure front elevational schematic of the regulator of this automotive disc brake intermediate gap self-adjustment structure.
Fig. 2 is the structure schematic top plan view of the regulator of this automotive disc brake intermediate gap self-adjustment structure.
Among the figure, 1, main shaft; 1a, the shaft shoulder; 2, neck bush; 2a, retaining edge; 3, driving gear; 4, adjustment cover; 5, overrunning clutch; 6, groove; 7, lock nut; 8, preloading spring; 9, flange; 10, packing ring; 11, recess; 12, finger; 13, thrust-bearing.
Embodiment
Below be the specific embodiment of the utility model and combine accompanying drawing, the technological scheme of the utility model is done further to describe, but the utility model is not limited to these embodiments.
Clearance self-regulating mechanism in the automotive disc brake of automobile comprises that two are screwed onto two screwed pipes on the push rod respectively, and the outer side surface of screwed pipe has the ring tooth, and this clearance self-regulating mechanism also comprises a finger 12, and the power unit of finger 12 and disk type braker links to each other.
As depicted in figs. 1 and 2; The regulator of this automotive disc brake intermediate gap self-adjustment structure; Comprise a main shaft 1 and neck bush on the socket main shaft 12 and driving gear 3 successively; Neck bush 2 is an interaction relation with driving gear 3, and driving gear 3 interior edge faces and neck bush 2 exterior edge faces lean, and when neck bush 2 rotates, can utilize the frictional force between the both ends of the surface to drive driving gear 3 rotations.Adopt end-face friction to come driving torque between driving gear 3 and the neck bush 2, when the moment of torsion between neck bush 2 and the driving gear 3 is excessive, can skid each other.As preferred version, the contact between driving gear 3 and the neck bush 2 is conical surface contact.Conical surface exposure phase directivity for plane contact is better with stability.Specifically, the exterior edge face of driving gear 3 offers the groove 6 that a side is the conical surface, and the outer side surface of the front end of neck bush 2 is coniform, and the front end of neck bush 2 is plugged in the groove 6, and the front end of the bore of groove 6 and neck bush 2 is complementary.
Circumferentially locate through flat key between driving gear 3 and the main shaft 1, driving gear 3 can be done axial slip along flat key on main shaft 1.Circumferentially rotate synchronously between driving gear 3 and the main shaft 1, axially both can slide each other.
The outside of neck bush 2 is arranged with adjustment cover 4, is provided with overrunning clutch 5 between adjustment cover 4 and the neck bush 2.The exterior edge face of adjustment cover 4 has recess 11, and recess 11 can match with the finger 12 in the clearance self-regulating mechanism.When being connected in the recess 11 under the effect of finger 12 at power unit, power unit can drive adjustment cover 4 through finger 12 and rotate.The inner end of main shaft 1 has a shaft shoulder 1a, is provided with thrust-bearing 13 between overrunning clutch 5 and the shaft shoulder 1a.The effect of thrust-bearing 13 is a reverse active force to be provided for neck bush 2 through overrunning clutch 5, and the end face of neck bush 2 is resisted against on the driving gear 3.The interior edge face of neck bush 2 has retaining along 2a, and the interior edge face of adjustment cover 4 is resisted against retaining along on the 2a.Adjustment cover 4 carries out axial location through keeping off along 2a.
Be provided with the elastic positioning machine structure that this driving gear 3 is produced to neck bush 2 side shifting trend between driving gear 3 and the main shaft 1; The elastic positioning machine structure comprise be screwed onto on the main shaft 1 and be positioned at the inner lock nut 7 of driving gear 3, be provided with preloading spring 8 between lock nut 7 and the driving gear 3.The elastic force of preloading spring 8 abuts on the exterior edge face of neck bush 2 interior edge face of driving gear 3, makes both on the end face of contact, produce certain pretension frictional force.The flange 9 that has an annular on the interior edge face of driving gear 3, an end of preloading spring 8 leans on lock nut 7, and the other end of this preloading spring 8 is resisted against on the interior edge face of driving gear 3 and is positioned at flange 9.9 pairs of preloading springs 8 of flange play the effect of radial location.Be provided with packing ring 10 between preloading spring 8 and the lock nut 7.Packing ring 10 makes an end of preloading spring 8 and loosens between the nut and becomes present face contact by original line contact.
The working principle of this device is following: the clearance self-regulating mechanism in the automotive disc brake of automobile comprises that two are screwed onto two screwed pipes on the push rod respectively; The outer side surface of screwed pipe has the ring tooth; This clearance self-regulating mechanism also comprises a finger 12, and the power unit of finger 12 and disk type braker links to each other.This regulator is arranged between two screwed pipes, and driving gear 3 is meshed with the ring tooth in the screwed pipe outside, when regulator is started working; Power unit drives finger 12; Finger 12 drives adjustment cover 4 forward rotation, and adjustment cover 4 drives neck bush 2 synchronous forward through overrunning clutch 5 and rotates, and neck bush 2 drives driving gear 3 through interaction relation and rotates; Driving gear 3 drives the ring tooth and rotates; The moving screwed pipe of ring cingulum rotates, and screwed pipe drives push rod through threaded connection relation and axially moves forward along it, and push rod promotes scotch block assembly and abuts on the brake disc.After braking process finishes; Regulator need reset, and power unit drives finger 12 counter-rotatings, and finger 12 drives adjustment cover 4 backward rotation; Because the characteristic of the one-way rotation of overrunning clutch 5; When adjusting cover 4 backward rotation, idle running between adjustment cover 4 and the neck bush 2, finger 12 drive adjustment covers 4 rotate until adjusting cover 4 and return back to original state.Be set to interaction relation between this device neck bush 2 and the driving gear 3; When the moment of torsion between neck bush 2 and the driving gear 3 is excessive, can skid each other; Thereby guarantee can not kill each other between neck bush 2 and the driving gear 3; Make this regulator have the self-protection function, improved the stability of this regulator.
Specific embodiment described herein only is that the utility model spirit is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from the spirit of the utility model or surmount the defined scope of appended claims.
Claims (10)
1. the regulator of an automotive disc brake intermediate gap self-adjustment structure; It is characterized in that; Comprise a main shaft (1) and neck bush (2) and the driving gear (3) on the socket main shaft (1) successively; Described neck bush (2) is an interaction relation with described driving gear (3); And when the moment of torsion between neck bush (2) and the driving gear (3) is excessive, can skid each other, the outside of described neck bush (2) is arranged with adjustment cover (4), is provided with overrunning clutch (5) between described adjustment cover (4) and the neck bush (2).
2. the regulator of a kind of automotive disc brake according to claim 1 intermediate gap self-adjustment structure; It is characterized in that; Described driving gear (3) interior edge face and neck bush (2) exterior edge face lean, and when described neck bush (2) rotates, can utilize the frictional force between the both ends of the surface to drive driving gear (3) rotation.
3. the regulator of a kind of automotive disc brake according to claim 2 intermediate gap self-adjustment structure is characterized in that, the contact between described driving gear (3) and the neck bush (2) is conical surface contact.
4. the regulator of a kind of automotive disc brake according to claim 3 intermediate gap self-adjustment structure; It is characterized in that; The exterior edge face of described driving gear (3) offers the groove (6) that a side is the conical surface; The outer side surface of the front end of described neck bush (2) is coniform, and the front end of described neck bush (2) is plugged in the groove (6), and the front end of the bore of described groove (6) and neck bush (2) is complementary.
5. according to the regulator of claim 1 or 2 or 3 or 4 described a kind of automotive disc brake intermediate gap self-adjustment structures; It is characterized in that; Be provided with between described driving gear (3) and the main shaft (1) and can make this driving gear (3) produce elastic positioning machine structure to neck bush (2) side shifting trend; Described elastic positioning machine structure comprise be screwed onto on the main shaft (1) and be positioned at the inner lock nut (7) of driving gear (3), be provided with preloading spring (8) between described lock nut (7) and the driving gear (3).
6. the regulator of a kind of automotive disc brake according to claim 5 intermediate gap self-adjustment structure; It is characterized in that; The flange (9) that has an annular on the interior edge face of described driving gear (3); One end of described preloading spring (8) leans on lock nut (7), and the other end of this preloading spring (8) is resisted against on the interior edge face of driving gear (3) and is positioned at described flange (9).
7. the regulator of a kind of automotive disc brake according to claim 5 intermediate gap self-adjustment structure is characterized in that, is provided with packing ring (10) between described preloading spring (8) and the lock nut (7).
8. according to the regulator of claim 1 or 2 or 3 or 4 described a kind of automotive disc brake intermediate gap self-adjustment structures; It is characterized in that; Circumferentially locate through flat key between described driving gear (3) and the main shaft (1), described driving gear (3) can be done axial slip along flat key on main shaft (1).
9. according to the regulator of claim 1 or 2 or 3 or 4 described a kind of automotive disc brake intermediate gap self-adjustment structures; It is characterized in that; The exterior edge face of described adjustment cover (4) has recess (11), and described recess (11) can match with the finger (12) in the clearance self-regulating mechanism.
10. according to the regulator of claim 1 or 2 or 3 or 4 described a kind of automotive disc brake intermediate gap self-adjustment structures; It is characterized in that; The inner end of described main shaft (1) has a shaft shoulder (1a); Be provided with thrust-bearing (13) between the described overrunning clutch (5) and the shaft shoulder (1a), the interior edge face of described neck bush (2) has retaining along (2a), and the interior edge face of described adjustment cover (4) is resisted against described retaining along on (2a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120237502U CN202149167U (en) | 2011-07-06 | 2011-07-06 | Adjustor for middle-clearance self-regulating mechanism of automobile disc-type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120237502U CN202149167U (en) | 2011-07-06 | 2011-07-06 | Adjustor for middle-clearance self-regulating mechanism of automobile disc-type brake |
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| Publication Number | Publication Date |
|---|---|
| CN202149167U true CN202149167U (en) | 2012-02-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120237502U Expired - Lifetime CN202149167U (en) | 2011-07-06 | 2011-07-06 | Adjustor for middle-clearance self-regulating mechanism of automobile disc-type brake |
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| CN (1) | CN202149167U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384191A (en) * | 2011-07-06 | 2012-03-21 | 隆中控股集团有限公司 | Regulator of clearance self-regulating mechanism in automobile disc brake |
| CN105344894A (en) * | 2015-11-30 | 2016-02-24 | 浙江异札特机械科技有限公司 | Flattening device for steel wire of steel wire knitting outer tube in bronchial cannula |
| CN105736606A (en) * | 2016-04-07 | 2016-07-06 | 金华职业技术学院 | Automobile electromechanical brake with gap adjusting function |
-
2011
- 2011-07-06 CN CN201120237502U patent/CN202149167U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102384191A (en) * | 2011-07-06 | 2012-03-21 | 隆中控股集团有限公司 | Regulator of clearance self-regulating mechanism in automobile disc brake |
| CN105344894A (en) * | 2015-11-30 | 2016-02-24 | 浙江异札特机械科技有限公司 | Flattening device for steel wire of steel wire knitting outer tube in bronchial cannula |
| CN105736606A (en) * | 2016-04-07 | 2016-07-06 | 金华职业技术学院 | Automobile electromechanical brake with gap adjusting function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 317600 ridge foot of Yucheng street in Yuhuan, Zhejiang Patentee after: Longzhong Holdings Group Limited by Share Ltd Address before: 317600 Chengguan mountain village, Zhukong Town, Taizhou City, Zhejiang Province Patentee before: Longzhong Holding Group Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120222 |