CN203362922U - Automatic gap regulating apparatus for disc brake - Google Patents

Automatic gap regulating apparatus for disc brake Download PDF

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Publication number
CN203362922U
CN203362922U CN 201320442847 CN201320442847U CN203362922U CN 203362922 U CN203362922 U CN 203362922U CN 201320442847 CN201320442847 CN 201320442847 CN 201320442847 U CN201320442847 U CN 201320442847U CN 203362922 U CN203362922 U CN 203362922U
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CN
China
Prior art keywords
friction plate
overload clutch
regulating apparatus
clutch
overload
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN 201320442847
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Chinese (zh)
Inventor
崔慧萍
林玮静
杜换军
刘宏威
曹振虎
孙超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sinotruk Jinan Power Co Ltd
China National Heavy Duty Truck Group Jinan Power Co Ltd
Original Assignee
China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China National Heavy Duty Truck Group Jinan Power Co Ltd filed Critical China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority to CN 201320442847 priority Critical patent/CN203362922U/en
Application granted granted Critical
Publication of CN203362922U publication Critical patent/CN203362922U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides an automatic gap regulating apparatus for a disc brake. The automatic gap regulating apparatus comprises a pressing plate, wherein a middle gear is mounted above the pressing plate; a main regulating fork is arranged in the middle of the middle gear in a penetrating manner; a power output end of the main regulating fork is in driving connection with an overload clutch shell; the overload clutch shell is connected with a power input end of an overload clutch shaft by a friction plate set; a unidirectional clutch is mounted at a power output end of the overload clutch shaft; the lower end of the middle gear is sleeved on the outer side of the unidirectional clutch; the upper end of the friction plate set is connected with a spring; the other end of the spring is connected with the pressing plate. The automatic gap regulating apparatus for the disc brake is simple in structure and low in cost, can realize automatic compensation of a gap and can carry out overload protection on loaded parts.

Description

A kind of disk brake clearance automatic regulating apparatus
Technical field
The utility model relates to a kind of disk brake clearance automatic regulating apparatus, belongs to technical field of automobile parts.
Background technique
Automatic adjustment mechanism for gap is the key modules of disk type braker, for automatically adjusting the excessive gaps caused because of brake slipper or brake disc wear, the brake clearance of disk type braker is kept within the limits prescribed always.At present, clearance adjustment mechanism roughly is divided into several types: (1) overrunning clutch, spring and ball combination; (2) overrunning clutch, torsion spring and the combination of friction plate group; (3) torsion spring, friction plate group and spring assembly.In above three kinds of structural types, all can not well complete the gap adjustment, gap is remained in OK range, and it is excessive to be unlikely to make excesssive gap or gap to be adjusted.
Summary of the invention
The technical problems to be solved in the utility model, be exactly for the existing deficiency of prior art, and provide a kind of gap that makes can remain on the disk brake clearance automatic regulating apparatus in OK range.
This programme is achieved by the following technical measures: this disk brake clearance automatic regulating apparatus comprises pressing plate, the pressing plate top is equipped with intermediate gear, be penetrated with the homophony fork in the middle of intermediate gear, the clutch end of homophony fork drives and is connected with the overload clutch shell, the overload clutch shell is connected with the power intake of overload clutch axle by the friction plate group, the clutch end of overload clutch axle is equipped with overrunning clutch, and the lower end of intermediate gear is sleeved on the outside of overrunning clutch; The upper end of described friction plate group is connected with spring, and the other end of spring is connected with pressing plate.
Above-mentioned friction plate group comprises vertically spaced friction plate I and friction plate II, and the friction plate I is fixedly connected with the overload clutch axle, and the friction plate II is fixedly connected with the overload clutch shell.
Above-mentioned homophony fork is connected with the overload clutch shell by straight burr, and this Connecting format is simple in structure, easily realizes.
The power intake of above-mentioned overload clutch axle is provided with the mounting groove coordinated with the friction plate I, to guarantee the connective stability of friction plate I.
Be connected to interference fit between above-mentioned overrunning clutch and intermediate gear.
The lower end of above-mentioned spring is connected with the friction plate group by connecting plate, to guarantee that spring produces initial Driving force to the friction plate group, makes the phase mutual friction under the pressure of spring of friction plate I and friction plate II.
Above-mentioned overload clutch axle arranged outside has the location shoulder I coordinated with overrunning clutch.
The inner side surface of above-mentioned intermediate gear is provided with the location shoulder II coordinated with overrunning clutch and overload clutch axle.
The beneficial effect of this programme can be learnt according to the narration to such scheme, in this disk brake clearance automatic regulating apparatus, when brake clearance need to be adjusted, the lever assembly drives the rotation of homophony fork, the homophony fork drives the overload clutch shell to rotate, and under the promotion of overload clutch shell and spring, by the friction plate group, drives the overload clutch axle to rotate, the overload clutch axle drives intermediate gear by overrunning clutch and rotates, and intermediate gear carries out the gap adjustment by the motion of push rod driven plunger.After adjustment completes, the reversion of homophony fork, and finally make the overrunning clutch reversion, now, in this direction, overrunning clutch is transmitting torque not, and intermediate gear does not rotate, piston can axially not moved, thereby guaranteed that gap can excessively not adjust, gap is returned in normal range (NR).This apparatus structure is simple, and cost is low, can realize the auto-compensation in gap, and can carry out overload protection to stressed part.As can be seen here, the utility model compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
The accompanying drawing explanation
The sectional structure schematic diagram that Fig. 1 is the utility model embodiment.
The perspective view that Fig. 2 is the utility model embodiment.
The assembly structure schematic diagram that Fig. 3 is the utility model embodiment.。
In figure, 1 is location shoulder II, and 2 is the overload clutch axle, 3 is the overload clutch shell, and 4 is straight burr, and 5 is the friction plate I, 6 is the friction plate II, and 7 is connecting plate, and 8 is spring, 9 is location shoulder I, and 10 is overrunning clutch, and 11 is pressing plate, 12 is intermediate gear, and 13 is the homophony fork, and 14 is whole push-plate, 15 is piston, and 16 is push rod, and 17 is mounting groove.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and, in conjunction with its accompanying drawing, this programme is set forth.
A kind of disk brake clearance automatic regulating apparatus, as shown in the figure, it comprises pressing plate 11, pressing plate 11 tops are equipped with intermediate gear 12 by pin, the lower end of intermediate gear 12 is through pressing plate 11, be penetrated with homophony fork 13 in the middle of intermediate gear 12, the clutch end of homophony fork 13 drives and is connected with overload clutch shell 3 by straight burr 4.Overload clutch shell 3 is connected with the power intake of overload clutch axle 2 by the friction plate group, wherein, the friction plate group comprises vertically spaced friction plate I 5 and friction plate II 6, friction plate I 5 contacts with friction plate II 6 formation faces, friction plate I 5 is fixedly connected with the power intake of overload clutch axle 2, friction plate II 6 is fixedly connected with overload clutch shell 3, and the power intake of overload clutch axle 2 is provided with the mounting groove 17 coordinated with friction plate I 5.
Overload clutch axle 2 arranged outside have the location shoulder I 9 coordinated with overrunning clutch 10, one section overload clutch axle 2 outside (being the output terminal of overload clutch axle 2) that are positioned at shoulder I 9 tops, location are set with overrunning clutch 10, the lower end of intermediate gear 12 is sleeved on the outside of overrunning clutch 10, and the lower end inner side surface of intermediate gear 12 and the outer side surface interference fit of overrunning clutch 10, the inner side surface of intermediate gear 12 is provided with the location shoulder II 1 coordinated with the upper-end surface of overrunning clutch 10 and overload clutch axle 2.The upper end of friction plate II 6 and friction plate I 5 is connected with spring 8 by connecting plate 7, and the other end of spring 8 is connected with pressing plate 11.
When brake clearance need to be adjusted, the lever assembly drives 13 rotations of homophony fork, homophony fork 13 drives 3 rotations of overload clutch shell, the phase mutual friction under the effect of spring 8 stress and overload clutch housings 3 of friction plate II 6 and friction plate I 5, and then drive overload clutch axle 2 rotates, overload clutch axle 2 drives intermediate gear 12 rotations by overrunning clutch 10, intermediate gear 12 drives 16 rotations of the push rod with gear at two ends, push rod 16 with gear travels forward by the relative push rod 16 of connecting thread driven plunger 15, carries out the adjustment in gap.
When braking is removed, the driving force of lever assembly is removed, be that input load disappears, pressing plate 11 is under the effect of return spring 8, progressively get back to initial position, the lever assembly promotes 13 rotations of homophony fork in the other direction, homophony fork 13 drives 3 counterrotatings of overload clutch shell, friction plate II 6 and friction plate I 5 be still friction under spring 8 pressure, drive 2 counterrotatings of overload clutch axle, effect due to overrunning clutch 10, now intermediate gear 12 does not rotate, push rod 16 with gear does not rotate yet, make piston 15 stop axial motion, to guarantee gap, can excessively not adjust, gap is returned in normal range (NR).
In the brake clearance adjusting stage; along with brake slipper progressively is adjacent to brake disc; the friction torque of brake slipper and brake disc progressively increases; by brake slipper, whole push-plate 14, piston 15 with the rotational resistance that the push rod 16 of gear is delivered to this device, progressively increase; meanwhile; frictional force between friction plate II 6 and friction plate I 5 also increases gradually; and then generation kinetic friction (skidding); friction plate II 6 and friction plate I 5 are no longer transmitted motion; load is unloading here, and the forced element in device is protected.
Can pass through existing techniques in realizing without the technical characteristics of describing in the utility model, not repeat them here.The foregoing is only preferred embodiment of the present utility model; the utility model is not limited in above-mentioned embodiment; the variation that those of ordinary skills make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.

Claims (8)

1. a disk brake clearance automatic regulating apparatus, it is characterized in that: it comprises pressing plate, the pressing plate top is equipped with intermediate gear, be penetrated with the homophony fork in the middle of intermediate gear, the clutch end of homophony fork drives and is connected with the overload clutch shell, the overload clutch shell is connected with the power intake of overload clutch axle by the friction plate group, and the clutch end of overload clutch axle is equipped with overrunning clutch, and the lower end of intermediate gear is sleeved on the outside of overrunning clutch; The upper end of described friction plate group is connected with spring, and the other end of spring is connected with pressing plate.
2. disk brake clearance automatic regulating apparatus according to claim 1, it is characterized in that: described friction plate group comprises vertically spaced friction plate I and friction plate II, the friction plate I is fixedly connected with the overload clutch axle, and the friction plate II is fixedly connected with the overload clutch shell.
3. disk brake clearance automatic regulating apparatus according to claim 1 and 2 is characterized in that: described homophony fork is connected with the overload clutch shell by straight burr.
4. disk brake clearance automatic regulating apparatus according to claim 3, it is characterized in that: the power intake of described overload clutch axle is provided with the mounting groove coordinated with the friction plate I.
5. disk brake clearance automatic regulating apparatus according to claim 3 is characterized in that: between described overrunning clutch and intermediate gear, be connected to interference fit.
6. disk brake clearance automatic regulating apparatus according to claim 1 and 2, it is characterized in that: the lower end of described spring is connected with the friction plate group by connecting plate.
7. disk brake clearance automatic regulating apparatus according to claim 1 and 2 is characterized in that: described overload clutch axle arranged outside has the location shoulder I coordinated with overrunning clutch.
8. disk brake clearance automatic regulating apparatus according to claim 7 is characterized in that: the inner side surface of described intermediate gear is provided with the location shoulder II coordinated with overrunning clutch and overload clutch axle.
CN 201320442847 2013-07-24 2013-07-24 Automatic gap regulating apparatus for disc brake Active CN203362922U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320442847 CN203362922U (en) 2013-07-24 2013-07-24 Automatic gap regulating apparatus for disc brake

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320442847 CN203362922U (en) 2013-07-24 2013-07-24 Automatic gap regulating apparatus for disc brake

Publications (1)

Publication Number Publication Date
CN203362922U true CN203362922U (en) 2013-12-25

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ID=49810694

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320442847 Active CN203362922U (en) 2013-07-24 2013-07-24 Automatic gap regulating apparatus for disc brake

Country Status (1)

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CN (1) CN203362922U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105090296A (en) * 2015-08-28 2015-11-25 枣庄泰德机械有限公司 Single pushrod adjuster assembly for clutch structure combining one-way bearing component and planar bearing component
CN105605129A (en) * 2016-02-03 2016-05-25 中国重汽集团济南动力有限公司 Piston-push rod limiting mechanism
WO2019161621A1 (en) * 2018-04-12 2019-08-29 山东越成制动系统股份有限公司 Commercial vehicle disc brake caliper body assembly
CN110546397A (en) * 2017-03-03 2019-12-06 克诺尔商用车制动系统有限公司 Disc brake comprising a readjustment device and method for adjusting the clearance of such a disc brake

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105090296A (en) * 2015-08-28 2015-11-25 枣庄泰德机械有限公司 Single pushrod adjuster assembly for clutch structure combining one-way bearing component and planar bearing component
CN105605129A (en) * 2016-02-03 2016-05-25 中国重汽集团济南动力有限公司 Piston-push rod limiting mechanism
CN110546397A (en) * 2017-03-03 2019-12-06 克诺尔商用车制动系统有限公司 Disc brake comprising a readjustment device and method for adjusting the clearance of such a disc brake
WO2019161621A1 (en) * 2018-04-12 2019-08-29 山东越成制动系统股份有限公司 Commercial vehicle disc brake caliper body assembly

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