CN2233002Y - Automotive drum-like self-adjusting brake for rear-wheel - Google Patents
Automotive drum-like self-adjusting brake for rear-wheel Download PDFInfo
- Publication number
- CN2233002Y CN2233002Y CN 95218224 CN95218224U CN2233002Y CN 2233002 Y CN2233002 Y CN 2233002Y CN 95218224 CN95218224 CN 95218224 CN 95218224 U CN95218224 U CN 95218224U CN 2233002 Y CN2233002 Y CN 2233002Y
- Authority
- CN
- China
- Prior art keywords
- self
- brake
- push rod
- plate
- drum
- 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.)
- Expired - Fee Related
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- Braking Arrangements (AREA)
Abstract
The utility model provides an automotive drum type self-adjusting brake for a rear wheel. The self-adjusting mechanism of the utility model is composed of a flitting plate, a push rod, a locking wheel, a flexing piece, and a pullback spring, wherein, the flitting plate is connected with the left end of the push rod through the flexing piece; the locking wheel is arranged on the center position of the push rod and is connected with the flexing piece through the pullback spring; the left end of the self-adjusting mechanism is connected with a left brake shoe, the right end is inserted and is connected with a drive arm and a right brake shoe, and the right end is tensed by the push rod for a pullback spring machine and the right brake shoe. The utility model which has the advantages of simple structure, convenient installation, rapid adjustment, maintained reasonable gap, and safe and reliable brake is suitable for a rear wheel brake in which the space height of the upper end surface of a ribbed slab for a brake shoe is smaller than 10 mm.
Description
The utility model relates to and a kind ofly reaches the braking device of brake purpose by wheel decelerates, is the drum-type rear wheel brake that is used for BJ2020 and BJ1021 series vehicle specifically.
Application number is that 95202553.1 " automobile drum-type rear wheel brake " will have automobile now and change the self-adjustment structure of being made up of push rod, spiral handspike, ratchet mechanism, ratchet and spring sheet into the manual parking device of drum-type rear wheel brake, it has overcome many shortcomings that manual-operating mechanism exists, time saving and energy saving, can adjust the gap between brake shoe and the brake drum automatically, but its deficiency is: when brake shoe floor upper-end surface spatial altitude during less than 10mm, inconvenience is installed, as the drum-type rear wheel brake of BJ2020 automobile use.
For overcoming the deficiency that above-mentioned prior art exists, the utility model provides a kind of rear wheel brake that is suitable for brake shoe floor upper-end surface spatial altitude less than 10mm, easy for installation, can regulate the gap automatically, in self-regulating process, finish the automobile drum-type trailing wheel self-regulating brake that service brake and parking braking are adjusted simultaneously.
The purpose of this utility model is achieved in that the automobile of being made up of brake drum, left brake shoe, right braking hoof, return spring, wheel cylinder, extension spring, driving arm, braking bottom board, rear fixed plate and self-adjustment structure drum-type trailing wheel self-regulating brake, the self-adjustment structure that is characterised in that of the present utility model is by alloting plate, push rod, lock wheel, extension spring certainly and scratching part and form, wherein, be provided with hook with plate face vertical protrusion from the top of alloting plate, right-hand member is toothed sector, the left side is provided with and scratches the hole of part coupling, allots plate certainly and is connected the left end of push rod by scratching part; The intermediate portion installing lock wheel of push rod, tooth on its periphery and the tooth engagement of alloting certainly on the plate sector, the lock wheel is connected with extension spring again with the central shaft of scratching part; Upper end, push rod right side is vertical protrusion and the prong parallel with putter face, and spring eye is established in the prong top.The left end of self-adjustment structure is by from the fan shaped borehole hook joint of alloting hook and the left brake shoe top on the plate, and right-hand member is by the prong on the push rod and driving arm and right braking hoof grafting, and by extension spring push rod and right braking hoof strained.
Description of drawings is as follows:
Fig. 1 is the structural representation of automobile with drum-type trailing wheel self-regulating brake
Fig. 2 is the structural representation of self-adjustment structure
Fig. 3 is the annexation schematic representation of looking up of Fig. 2 and self-adjustment structure and left and right brake shoe and driving arm
Below in conjunction with accompanying drawing the utility model is further described:
Referring to Fig. 1, automobile is made up of brake drum (1), left brake shoe (2), return spring (3), wheel cylinder (4), self-adjustment structure (5), extension spring (6), driving arm (7), right braking hoof (8), braking bottom board (9) and rear fixed plate (10) with drum-type trailing wheel self-regulating brake.Referring to Fig. 2 and Fig. 3, the self-adjustment structure (5) that is characterised in that of the present utility model is by alloting plate (11), push rod (12), lock wheel (13), extension spring (14) certainly and scratching part (15) and form, be provided with hook with plate face vertical protrusion from the top of alloting plate (11), right-hand member is toothed sector, and the left side has and the hole of scratching the part coupling; The top of left side brake shoe (2) is provided with fan shaped borehole (B), it be connected from the hook coupling of alloting on the plate (11), leave adjusting gap K value=0.2～0.8 millimeter after the assembling; Push rod (12) is bar shaped, and there are two ends and the tangent slotted hole (C) of circular arc in the left side, and lock wheel hole is established in the intermediate portion, and the upper end, right side is vertical protrusion and the prong parallel with putter face, and spring eye is established in the prong top; Tooth on lock wheel (13) periphery and the tooth engagement of alloting certainly on plate (11) sector.Be connected the left side of push rod (12) from alloting plate (11) by scratching bar (15), the intermediate portion installing lock wheel (13) of push rod (12), lock wheel (13) is connected with extension spring (14) with the central shaft of scratching part (15).The left end of self-adjustment structure (5) is by fan shaped borehole (B) hook joint above hook and the left brake shoe (2) alloted on the plate (11), right-hand member leans on prong and driving arm (7) and right braking hoof (8) grafting on the push rod (12), and by extension spring (6) aperture of push rod (12) prong top and the aperture of right braking hoof (8) top is strained.
Working principle of the present utility model: referring to Fig. 1 and Fig. 3, when wheel cylinder (4) produces braking force, insert hook " A " face tension in left brake shoe (2) fan shaped borehole (B) from alloting plate (11), slide left along the slotted hole (C) on the push rod (12) together with scratching part (15) from alloting plate (11), make from the flank of tooth of alloting plate (11) and the flank of tooth of lock wheel (13) and throw off, meanwhile, push rod (12) right-hand member is also under the effect of extension spring (6), it is moved to right with right braking hoof (8), like this, the overall just elongation of self-adjustment structure.When wheel cylinder (4) release, under the effect of return spring (3), to the center travelling backwards, this moment is because adjusting play K is a definite value respectively for left and right brake shoe (2) and (8), under the effect of extension spring (14), the fan-shaped tooth surface of alloting plate (11) is certainly taken turns the flank engagement of (13) again with lock.Because the return amount of left and right brake shoe is a gap K value, so, much no matter the gap of brake assembly during with brake drum (1) assembling has, also regardless of the degree of wear of friction lining, its brake clearance energy quick self modulation, and remain unchanged.
The utility model compared with prior art has following advantage: self-adjusting mechanism simple in structure, Easy for installation, can be when service brake capable of automatic regulating gap, and finish simultaneously parking braking The gap is adjusted, and makes the stroke of parking braking constant, remains reasonable clearance, brake reliably, Safety is applicable to brake-shoe floor upper surface spatial altitude less than the rear wheel brake of 10mm, More perfect BJ2020 and the used drum-type rear wheel brake of BJ1021 series automobiles.
Claims (5)
1, a kind of automobile drum-type trailing wheel self-regulating brake, it is by brake drum (1), left side brake shoe (2), return spring (3), wheel cylinder (4), self-adjustment structure (5), extension spring (6), driving arm (7), right braking hoof (8), braking bottom board (9) and rear fixed plate (10) are formed, it is characterized in that self-adjustment structure (5) is by alloting plate (11) certainly, push rod (12), lock wheel (13), extension spring (14) and scratch part (15) and form, be connected the left side of push rod (12) from alloting plate (11) by scratching part (15), the intermediate portion installing lock wheel (13) of push rod (12), extension spring (14) two ends are connected with the central shaft of scratching part (15) with lock wheel (13) respectively, the left end of self-adjustment structure (5) is by fan shaped borehole (B) hook joint above hook and the left brake shoe (2) alloted on the plate (11), right-hand member leans on prong and driving arm (7) and right braking hoof (8) grafting on the push rod (12), and by extension spring (6) push rod (12) and right braking hoof (8) is strained.
2, automobile according to claim 1 is with drum-type trailing wheel self-regulating brake, it is characterized in that being provided with from the top of alloting plate (11) hook with plate face vertical protrusion, and right-hand member is toothed sector, and the left side has and the hole of scratching the part coupling.
3, automobile according to claim 1 is characterized in that with drum-type trailing wheel self-regulating brake the top of left brake shoe (2) is provided with fan shaped borehole (B), and it is connected with the hook coupling of alloting certainly on the plate (11), leaves after the assembling and regulates 0.2～0.8 millimeter in gap.
4, automobile according to claim 1 drum-type trailing wheel self-regulating brake, it is characterized in that push rod (12) is bar shaped, there are two ends and the tangent slotted hole (C) of circular arc in the left side, lock wheel hole is established in the intermediate portion, the upper end, right side is vertical protrusion and the prong parallel with putter face, and spring eye is established in the prong top.
5, automobile according to claim 1 is characterized in that tooth and the tooth engagement of alloting certainly on plate (11) sector on lock wheel (13) periphery with drum-type trailing wheel self-regulating brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218224 CN2233002Y (en) | 1995-08-03 | 1995-08-03 | Automotive drum-like self-adjusting brake for rear-wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95218224 CN2233002Y (en) | 1995-08-03 | 1995-08-03 | Automotive drum-like self-adjusting brake for rear-wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2233002Y true CN2233002Y (en) | 1996-08-14 |
Family
ID=33866824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95218224 Expired - Fee Related CN2233002Y (en) | 1995-08-03 | 1995-08-03 | Automotive drum-like self-adjusting brake for rear-wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2233002Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155506A (en) * | 2011-03-16 | 2011-08-17 | 湖南运达机械制造有限公司 | Self-regulation clearance hydraulic drum-type front brake with temperature compensation function |
| CN105102841A (en) * | 2013-04-03 | 2015-11-25 | 株式会社Tbk | Drum brake |
-
1995
- 1995-08-03 CN CN 95218224 patent/CN2233002Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102155506A (en) * | 2011-03-16 | 2011-08-17 | 湖南运达机械制造有限公司 | Self-regulation clearance hydraulic drum-type front brake with temperature compensation function |
| CN102155506B (en) * | 2011-03-16 | 2012-08-15 | 湖南运达机械制造有限公司 | Self-regulation clearance hydraulic drum-type front brake with temperature compensation function |
| CN105102841A (en) * | 2013-04-03 | 2015-11-25 | 株式会社Tbk | Drum brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |