CN201875029U - Self-energizing brake - Google Patents
Self-energizing brake Download PDFInfo
- Publication number
- CN201875029U CN201875029U CN2010205814817U CN201020581481U CN201875029U CN 201875029 U CN201875029 U CN 201875029U CN 2010205814817 U CN2010205814817 U CN 2010205814817U CN 201020581481 U CN201020581481 U CN 201020581481U CN 201875029 U CN201875029 U CN 201875029U
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- Prior art keywords
- brake shoe
- brake
- neck
- self
- shoe
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- Expired - Fee Related
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Abstract
The utility model relates to a self-energizing brake, which comprises a bottom plate, wherein a driving brake shoe and a driven brake shoe are arranged on the bottom plate, a top support block is arranged on the bottom plate positioned between the upper end of the driving brake shoe and the upper end of the driven brake shoe and is a square support block, the cross section of the square support block is in a square shape, the upper end of the driving brake shoe and the upper end of the driven brake shoe are respectively in outwards projected arc-shaped structures which are in linear contact with the square support block, and the structure is simple. When the distance between the axial line of the top support block and the axial line of the brake deflects, and the gap change between the upper end or the lower end of the driving brake shoe and the driven brake shoe and a brake drum is caused, the driving brake shoe and the driven brake shoe are in a suspended state, the regulation in the upwards direction and in the downwards direction is automatically realized through the collision on the brake shoes by the rotation of the brake drum, the temperature rise is low, and the brake effect is good.
Description
Technical field
The utility model relates to a kind of self-energizing brake, specifically, relates to a kind of break that can regulate the braking gap between braking plate and the brake drum automatically, belongs to field of mechanical technique.
Background technique
As Fig. 1, shown in Figure 2, the self energizing effort drum brake is a kind of braking device that brakes to rotatablely moving, the structure of self energizing effort drum brake generally comprises base plate 1, base plate 1 is provided with two brake shoes, two brake shoes comprise neck brake shoe 3 and from brake shoe 7, neck brake shoe 3 is provided with neck shoe friction plate 12, be provided with from shoe friction plate 13 from brake shoe 7, the top of base plate 1 is provided with supports jacking block 6, this supports jacking block for supporting bearing pin, neck brake shoe 3, between brake shoe 7 and support bearing pin, be respectively equipped with return spring 15, after removing return spring 15 and cover plate 16, can see that the cross section of supporting bearing pin is for circular, neck brake shoe 3 and be respectively equipped with the arc structure 4 of indent from the upper end of brake shoe 7, the arc structure 4 of two indents cooperates with the support bearing pin, be provided with brake pump 5 at base plate 1 center upside, neck brake shoe 3 and hinged from the lower end of brake shoe 7, its end that suspends, be that rounded end is realized resetting by the collision that brake shoe deadweight and brake drum rotate brake shoe, but can only adjust by left and right sides both direction like this.
In the structure of break, required distance between supporting pin axis and the brake backing plate axis is very strict, in a single day deviation appears in the distance between its axis, will cause neck brake shoe 3 and change from the upper end of brake shoe 7 or the gap between lower end and the brake drum, owing to support that bearing pin defines neck brake shoe 3 by arc structure 4 and from the position of brake shoe both direction about in the of 7, can't adjust neck brake shoe 3 and from the position of brake shoe both direction about in the of 7, like this, neck brake shoe 3, upper end or the lower end little from gap between brake shoe 7 and the brake drum can produce friction always, cause dawdling of friction pair, loss power causes the wheel hub temperature too high.
For fear of dawdling and the wheel hub heating, usually need high-ranking military officer's brake shoe 3, transfer from the gap between brake shoe 7 and the brake drum greatly, up to leading brake shoe 3, not producing the phenomenon of dawdling from brake shoe 7 and brake drum, because the defective on the existing brake structural, can only be by transferring big neck brake shoe 3, adjusting the gap of both direction up and down from the gap of left and right sides both direction between brake shoe 7 and the brake drum indirectly, to support bearing pin is that the center is when adjusting, will cause the brake clearance of two breaks of left and right vehicle wheel inconsistent, can take back or take over during brake.
The model utility content
Problem to be solved in the utility model is at above problem, provide a kind of simple in structure, can adjust brake shoe upper-lower position, the self-energizing brake that braking effect is good automatically.
For addressing the above problem, the technological scheme that the utility model adopted is: a kind of self-energizing brake, comprise base plate, base plate is provided with neck brake shoe and from brake shoe, be provided with the support jacking block on the neck brake shoe and from the base plate between the brake shoe upper end, it is characterized in that: described this support jacking block is for supporting square, and the cross section of supporting square is square, neck brake shoe and be respectively the arcuate structure of evagination from the upper end of brake shoe, this arcuate structure contacts with support square line.
As further improvement in the technical proposal:
Described neck brake shoe and be provided with brake pump between the brake shoe.
Described neck brake shoe and be provided with return spring between the brake shoe.
The lower end of described neck brake shoe and be provided with the adjustment spring between the lower end of brake shoe, neck brake shoe and be provided with left and right sides slack adjuster between the lower end of brake shoe.
Described left and right sides slack adjuster comprises regulator, regulator the neck brake shoe the underpart and between the underpart of brake shoe, regulator respectively with the neck brake shoe, hinged from brake shoe, the outer peripheral surface of regulator is provided with thumb wheel.
Described thumb wheel is connected with automatic control tegulatingdevice.
Described automatic control tegulatingdevice comprises runner and plectrum, runner with fixedly connected from brake shoe, plectrum with hinged from brake shoe.
Described plectrum is provided with attachment hole, and runner is provided with backguy, and an end of backguy is connected with attachment hole, and the other end of backguy is fixedlyed connected with base plate.
One end of described adjustment spring is connected with the neck brake shoe, and the other end of adjustment spring is connected with the attachment hole on the plectrum.
The radius of described arcuate structure is 100-300mm.
The utility model is taked above technological scheme, have the following advantages: support jacking block and be set to support square, the cross section of supporting square is square, high-ranking military officer's brake shoe and be set to the arcuate structure of evagination from the upper end of brake shoe respectively simultaneously, this arcuate structure and neck brake shoe and from brake shoe respectively line contact, simple in structure, when deviation appears in the distance that supports between jacking block axis and the break axis, cause the neck brake shoe and from the upper end of brake shoe or the gap between lower end and the brake drum when changing, be in state of suspension because of the neck brake shoe with from brake shoe, the collision of rotating brake shoe by brake drum realizes the adjustment of both direction up and down automatically, temperature rise is low, and braking effect is good.
The utility model is described in further detail below in conjunction with drawings and Examples.
Description of drawings
Accompanying drawing 1 is the structural representation of break in the prior art;
Accompanying drawing 2 removes structural representation behind cover plate and the return spring for break in the prior art;
Accompanying drawing 3 is the structural representation of break among the utility model embodiment 1;
Accompanying drawing 4 removes structural representation behind the cover plate for break among the utility model embodiment 1;
Accompanying drawing 5 is the structural representation of another kind of break in the prior art;
Accompanying drawing 6 removes structural representation behind the cover plate for 2 another kind of breaks among the utility model embodiment.
Among the figure,
The 1-base plate, 2-adjusts spring, and 3-leads brake shoe, 4-arc structure, the 5-brake pump, 6-supports jacking block, and 7-is from brake shoe, 8-first supporting base, the 9-regulator, the 10-thumb wheel, 11-second supporting base, 12-leads shoe friction plate, 13-is from shoe friction plate, 14-stage clip, 15-return spring, 16-cover plate, the 17-arcuate structure, 18-backguy, 19-stationary axle, 20-runner, the 21-rotating shaft, 22-fixed hole, 23-plectrum, 24-attachment hole.
Embodiment
Embodiment 1, as Fig. 3, shown in Figure 4, a kind of self-energizing brake, comprise base plate 1, base plate 1 is provided with brake shoe, brake shoe comprises neck brake shoe 3 and from brake shoe 7, lead brake shoe 3 and fixedly connected with base plate 1 by stage clip 14 respectively from brake shoe 7, neck brake shoe 3 is provided with neck shoe friction plate 12, be provided with from shoe friction plate 13 from brake shoe 7, lead brake shoe 3 upper ends and be provided with support jacking block 6 from the base plate 1 between brake shoe 7 upper ends, this supports jacking block 6 for supporting square, the cross section of supporting square is square, neck brake shoe 3 and be respectively the arcuate structure 17 of evagination from the upper end of brake shoe 7, the radius of arcuate structure 17 is 300mm, this arcuate structure 17 contacts with support square line, neck brake shoe 3 and be provided with cover plate 16 from the support square in brake shoe 7 outsides, cover plate 16 is used for to neck brake shoe 3 and carries out spacing from brake shoe 7, be provided with brake pump 5 at base plate 1 center upside, brake pump 5 is an oil hydraulic pump, brake pump 5 is positioned at the bottom of supporting square, brake pump 5 is arranged on neck brake shoe 3 and between the brake shoe 7, the neck brake shoe 3 of base plate 1 center upside and be provided with return spring 15 between the brake shoe 7, return spring 15 is arranged on the bottom of brake pump 5, one end of return spring 15 is connected with neck brake shoe 3, the other end of return spring 15 be connected from brake shoe 7, neck brake shoe 3 and from the arcuate structure 17 of brake shoe 7 upper ends under the effect of return spring 15, contact with the line that supports the square both sides, support square and play spacing effect to neck brake shoe 3 with from brake shoe 7, lead the lower end of brake shoe 3 and adjust spring 2, lead brake shoe 3 and be provided with left and right sides slack adjuster between the lower end of brake shoe 7 from being provided with between the lower end of brake shoe 7.
Left and right sides slack adjuster comprises regulator 9, regulator 9 is in the underpart of neck brake shoe 3 with between the underpart of brake shoe 7, the two ends of regulator 9 are respectively arranged with first supporting base 8 and second supporting base 11, first supporting base 8 be connected from brake shoe 7, second supporting base 11 is connected with neck brake shoe 3, the outer peripheral surface of regulator 9 is provided with thumb wheel 10, manually rotate thumb wheel 10 can adjust neck brake shoe 3, from the gap of left and right directions between brake shoe 7 and the brake drum.
Left and right sides slack adjuster comprises regulator 9, regulator 9 is in the underpart of neck brake shoe 3 with between the underpart of brake shoe 7, the two ends of regulator 9 are respectively arranged with first supporting base 8 and second supporting base 11, first supporting base 8 be connected from brake shoe 7, second supporting base 11 is connected with neck brake shoe 3, the outer peripheral surface of regulator 9 is provided with thumb wheel 10, and thumb wheel 10 is connected with automatic control tegulatingdevice.
Automatic control tegulatingdevice comprises runner 20 and plectrum 23, runner 20 is arranged on from the neutral position of brake shoe 7, runner 20 passes through stationary axle 19 and fixedlys connected from brake shoe 7, plectrum 23 is positioned at from the underpart of brake shoe 7, plectrum 23 is provided with fixed hole 22 and attachment hole 24, fixed hole 22 is positioned at an end of plectrum 23, attachment hole 24 is positioned at the intermediate portion of plectrum 23, plectrum 23 is positioned at the top of regulator 9, plectrum 23 is by fixed hole 22 and be arranged on rotating shaft 21 from the brake shoe 7 with hinged from brake shoe 7, runner 20 is provided with backguy 18, one end of backguy 18 is connected with attachment hole 24, the other end of backguy 18 is fixedlyed connected with the support square on the base plate 1 by draw ring, an end of adjusting spring 2 is connected with neck brake shoe 3, the other end of adjustment spring 2 is connected with the attachment hole 24 on the plectrum 23, and automatic control tegulatingdevice has been realized automatic adjustment neck brake shoe 3, gap from left and right directions between brake shoe 7 and the brake drum.
Among the above embodiment, the radius of arcuate structure can also be the numerical value between 100mm and the 300mm according to the size adjustment of break.
Carry out temperature rise, stop and test partially with the two bell automobiles in Feitian, test is provided with contrast groups 1, contrast groups 2 and test group, and outdoor temperature is 10 ℃ during test.
The left break of contrast groups 1 assembles according to the last tolerance maximum value between two bell automobile supporting pin axis in Feitian and the brake backing plate axis, and the right break of contrast groups 1 assembles according to the following tolerance maximum value between two bell automobile supporting pin axis in Feitian and the brake backing plate axis;
The left break of contrast groups 2 assembles according to the last tolerance intermediate value between two bell automobile supporting pin axis in Feitian and the brake backing plate axis, and the right break of contrast groups 1 assembles according to the following tolerance intermediate value between two bell automobile supporting pin axis in Feitian and the brake backing plate axis;
Test group adopts the break of the utility model gained, the left break of this break assembles according to the last tolerance maximum value between two bell automobile supporting pin axis in Feitian and the brake backing plate axis, and the right break of contrast groups 1 assembles according to the following tolerance maximum value between two bell automobile supporting pin axis in Feitian and the brake backing plate axis.
The brake drum temperature (℃) situation such as following table:
Stop inclined to one side situation such as following table:
From above data as can be seen, the utility model break can be realized the adjustment of both direction up and down automatically by the collision that brake drum rotates brake shoe, and temperature rise is low, and braking effect is good.
Claims (10)
1. self-energizing brake, comprise base plate (1), base plate (1) is provided with neck brake shoe (3) and from brake shoe (7), be provided with on the neck brake shoe (3) and from the base plate (1) between brake shoe (7) upper end and support jacking block (6), it is characterized in that: described this support jacking block (6) is for supporting square, the cross section of supporting square is square, neck brake shoe (3) and be respectively the arcuate structure (17) of evagination from the upper end of brake shoe (7), and this arcuate structure (17) contacts with support square line.
2. a kind of self-energizing brake as claimed in claim 1 is characterized in that: described neck brake shoe (3) and be provided with brake pump (5) between the brake shoe (7).
3. a kind of self-energizing brake as claimed in claim 1 is characterized in that: described neck brake shoe (3) and be provided with return spring (15) between the brake shoe (7).
4. as one of them described a kind of self-energizing brake of claim 1-3, it is characterized in that: the lower end of described neck brake shoe (3) and adjust spring (2), neck brake shoe (3) and be provided with left and right sides slack adjuster between the lower end of brake shoe (7) from being provided with between the lower end of brake shoe (7).
5. a kind of self-energizing brake as claimed in claim 4, it is characterized in that: described left and right sides slack adjuster comprises regulator (9), regulator (9) be positioned at the neck brake shoe (3) the underpart and between the underpart of brake shoe (7), regulator (9) respectively with the neck brake shoe (3), hinged from brake shoe (7), the outer peripheral surface of regulator (9) is provided with thumb wheel (10).
6. a kind of self-energizing brake as claimed in claim 5 is characterized in that: described thumb wheel (10) is connected with automatic control tegulatingdevice.
7. a kind of self-energizing brake as claimed in claim 6 is characterized in that: described automatic control tegulatingdevice comprises runner (20) and plectrum (23), runner (20) with fixedly connected from brake shoe (7), plectrum (23) with hinged from brake shoe (7).
8. a kind of self-energizing brake as claimed in claim 7, it is characterized in that: described plectrum (23) is provided with attachment hole (24), runner (20) is provided with backguy (18), and an end of backguy (18) is connected with attachment hole (24), and the other end of backguy (18) is fixedlyed connected with base plate (1).
9. a kind of self-energizing brake as claimed in claim 8 is characterized in that: an end of described adjustment spring (2) is connected with neck brake shoe (3), and the other end of adjustment spring (2) is connected with the attachment hole (24) on the plectrum (23).
10. a kind of self-energizing brake as claimed in claim 9 is characterized in that: the radius of described arcuate structure (17) is 100-300mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205814817U CN201875029U (en) | 2010-10-29 | 2010-10-29 | Self-energizing brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205814817U CN201875029U (en) | 2010-10-29 | 2010-10-29 | Self-energizing brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201875029U true CN201875029U (en) | 2011-06-22 |
Family
ID=44162947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205814817U Expired - Fee Related CN201875029U (en) | 2010-10-29 | 2010-10-29 | Self-energizing brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201875029U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975230A (en) * | 2010-10-29 | 2011-02-16 | 潍坊金力机电有限公司 | Self-energized brake |
| CN105570349A (en) * | 2016-01-25 | 2016-05-11 | 天津职业技术师范大学 | Pneumatic drum-type floating cam balanced wheel brake capable of achieving gap self-adjustment |
-
2010
- 2010-10-29 CN CN2010205814817U patent/CN201875029U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975230A (en) * | 2010-10-29 | 2011-02-16 | 潍坊金力机电有限公司 | Self-energized brake |
| CN101975230B (en) * | 2010-10-29 | 2012-10-17 | 潍坊金力机电有限公司 | Self-energized brake |
| CN105570349A (en) * | 2016-01-25 | 2016-05-11 | 天津职业技术师范大学 | Pneumatic drum-type floating cam balanced wheel brake capable of achieving gap self-adjustment |
| CN105570349B (en) * | 2016-01-25 | 2018-01-12 | 天津职业技术师范大学 | Pneumatic drum type floating cam balance self-gap-regulating wheel drag |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110622 Termination date: 20181029 |