CN103486167A - Braking-clearance compensating mechanism based on atmospheric-pressure disc type brake - Google Patents
Braking-clearance compensating mechanism based on atmospheric-pressure disc type brake Download PDFInfo
- Publication number
- CN103486167A CN103486167A CN201310276783.1A CN201310276783A CN103486167A CN 103486167 A CN103486167 A CN 103486167A CN 201310276783 A CN201310276783 A CN 201310276783A CN 103486167 A CN103486167 A CN 103486167A
- Authority
- CN
- China
- Prior art keywords
- gear
- adjusting sleeve
- push
- screw rod
- braking
- 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.)
- Pending
Links
Images
Landscapes
- Braking Arrangements (AREA)
Abstract
The invention relates to a braking-clearance compensating mechanism based on an atmospheric-pressure disc type brake. The braking-clearance compensating mechanism comprises a transmission shaft for compensating a braking clearance, a one-way clutch, a gear transmission unit, a spiral pushing unit and a pressure seat, wherein the transmission shaft is in transmission connection with the input end of the gear transmission unit by the one-way clutch, so that the gear transmission unit does unidirectional transmission; the spiral pushing unit is arranged on the pressure seat; the output end of the spiral pushing unit is connected with a pushing disc; the output end of the gear transmission unit is in transmission connection with the input end of the spiral pushing unit, so that the output end of the spiral pushing unit does unidirectional axial movement along the spiral and axial direction, and the pushing disc is pushed to do movement of braking-clearance compensation. The braking-clearance compensating mechanism has the advantages that braking-clearance compensation rotation and other rotations can be effectively separated, so that the braking-clearance compensation is not interfered by other movements and the braking-clearance adjustment is accurate; the pushing to the pushing disc is stable, so that the clearance compensation is balanced and the braking performance is stable.
Description
Technical field
The present invention relates to air-pressure disc brake, relate in particular in this break and increase because the reasons such as brake pad wearing and tearing cause brake clearance, and need the gap increased be compensated, make it to return to a kind of brake clearance compensation mechanism based on air-pressure disc brake of setting gap.
Background technique
Existing air-pressure disc brake, the thrust direction of its brake chamber is axially to promote, the clearance adjustment mechanism that includes the brake clearance sensing is placed in the caliper of break, be subject to thrust direction and caliper structure influence, braking moment can not increase, affect the velocity ratio of braking force, restricted the raising of braking force, often make car load braking force not reach desired value.
Summary of the invention
The object of the invention is to overcome the deficiency of above-mentioned prior art, a kind of a kind of brake clearance compensation mechanism based on air-pressure disc brake corresponding to having larger braking force velocity ratio is provided.
Above-mentioned purpose realizes by following technical proposals.
Described brake clearance compensation driving mechanism, be placed in push-plate one side of described break, this mechanism comprises the transmission shaft that brake clearance is compensated, overrunning clutch, gear transmission unit, spiral pushing unit and pressure seat, described transmission shaft is by the be in transmission connection input end of gear transmission unit of described overrunning clutch, make this gear transmission unit do the transmission of single direction, described spiral pushing unit is placed on described pressure seat, the output terminal of this spiral pushing unit connects described push-plate, the be in transmission connection input end of spiral pushing unit of the output terminal of gear transmission unit, make the output terminal of spiral pushing unit do screw axis to the moving axially of single direction, promote push-plate and do the movement of brake clearance compensation.
The further design of described brake clearance compensation driving mechanism is, described gear transmission unit comprises input gear, output gear and excessive gear, between described input gear and output gear, by least one excessive gear, carries out engagement driving.
The further design of described brake clearance compensation driving mechanism is, each gear of described gear transmission unit rotates and is arranged on a gear stand, and this gear stand is placed in a side of described pressure seat.
The further design of described brake clearance compensation driving mechanism is, described excessive gear and output gear have respectively two, and the excessive gear that place by symmetry respectively the symmetrical both sides of described input gear carries out engagement driving with the output gear of symmetrical placement.
The further design of described brake clearance compensation driving mechanism is, described transmission shaft connects input gear by overrunning clutch, to realize the transmission to the single direction of described gear transmission unit.
The further design of described brake clearance compensation driving mechanism is, described overrunning clutch is unilateral bearing.
The further design of described brake clearance compensation driving mechanism is, described spiral pushing unit comprises adjusting sleeve and screw rod, described adjusting sleeve is movably connected on described pressure seat, the adjusting sleeve center is provided with screw, described screw rod is screwed in this screw, adjusting sleeve or screw rod are connected with the rotating shaft of described output gear, the corresponding screw rod that is rotatably connected in adjusting sleeve or adjusting sleeve one end that is rotatably connected in screw rod are connected with described push-plate, when output gear drives adjusting sleeve or bolt rotary, screw rod or adjusting sleeve drive push-plate and axially move.
The further design of described brake clearance compensation driving mechanism is, described pressure seat is provided with symmetrically arranged adjustment trepanning, and described adjusting sleeve is placed in adjusts trepanning.
The further design of described brake clearance compensation driving mechanism is, described adjusting sleeve is rotatably connected in described adjustment trepanning and with output gear and is connected, screw rod is screwed in screw corresponding to adjusting sleeve, one end is connected with push-plate, when output gear drives the adjusting sleeve rotation, screw rod drives push-plate and axially moves.
The further design of described brake clearance compensation driving mechanism is, described adjusting sleeve is slidably connected in described adjustment trepanning, one end is connected with push-plate, screw rod is screwed in screw corresponding to adjusting sleeve, one end is connected with output gear, when output gear drives bolt rotary, adjusting sleeve drives push-plate and axially moves.
The present invention rotates and effectively separates with other rotations the brake clearance compensation of transmission shaft by overrunning clutch, has guaranteed that other rotations can not cause interference to the brake clearance compensation, makes the brake clearance adjustment accurate, and braking maneuver is reliable; The spiral unit that simultaneously the present invention comes transmission symmetry to distribute by the gear transmission unit that is symmetrical arranged gear, more steady to the promotion of push-plate like this, thus make the compensation in gap more balancedly, guaranteed the stable of braking ability.
The accompanying drawing explanation
Fig. 1 is the structural representation of break of the present invention.
Fig. 2 is the A-A sectional view of break shown in Fig. 1.
Fig. 3 is the structural representation that the upper set adjustment tank of the bevel gear on passing shaft matches with the rotating shaft upper setting block.
Fig. 4 is the schematic diagram that there are gap μ in adjustment block T1 and adjustment tank T2.
Fig. 5 is the schematic diagram of the gap delta between brake disc and brake pad.
Schematic diagram when Fig. 6 is adjustment block shake-up adjustment tank.
Fig. 7 is the structural representation of gear stand.
Fig. 8 is equipped with the gear stand shown in Fig. 1 of input gear and unilateral bearing.
In figure, 1 pressure seat, 2 rotating shafts, 2a bevel gear, 3 transmission shafts, 4 bevel gears, 5 gear transmission units, 5a input gear, 5c output gear, the excessive gear of 5b, 5d gear stand, the 5d1 dunnage, 5d2 rivet, 5d3 rotating shaft, 5d11 the first structure hole, 5d12 the second structure hole, 6 overrunning clutchs, 7 spiral pushing units, 7a adjusting sleeve, 7b screw rod, 9 bearings, 100 supports, 101 guide pin bushings, 103 adjust arm, 104 brake discs, 105 calipers, 106 brake pads, 107 push-plates, 108 upper end caps, T1 adjustment block, T2 adjustment tank.
Embodiment
Contrast Fig. 1,2, brake clearance of the present invention compensates driving mechanism, is placed in push-plate 107 1 sides of described break, and this mechanism comprises transmission shaft 3, overrunning clutch 6, gear transmission unit 5, spiral pushing unit 7 and pressure seat 1.Transmission shaft 3 is by the be in transmission connection input end of gear transmission unit 5 of overrunning clutch 6, make gear transmission unit 5 do the transmission of single direction, spiral pushing unit 7 is placed on pressure seat 1, the output terminal of this spiral pushing unit 7 connects push-plate 107, the be in transmission connection input end of spiral pushing unit 7 of the output terminal of gear transmission unit 7, make the output terminal of spiral pushing unit do screw axis to the moving axially of single direction, promote the movement that push-plate is done the brake clearance compensation.
Above-mentioned transmission shaft 3 is brake clearances because of the rotating shaft that wearing and tearing increase and rotate while surpassing setting value, transmits by this transmission shaft 3 physical quantity that wearing clearance increases, in order to described gap is compensated.Transmission to the wearing clearance that increases can have various ways, and the present embodiment adopts adjustment block T1 as shown in Figure 3 and the cooperation of adjustment tank T2 to be transmitted.Adjustment block T1 be arranged on adjust the rotating shaft 2 that arm 103 is connected on, adjust arm 103 and driven by the push rod 108 of brake chamber, promote transmission shafts 3 and rotate by adjusting arm 103 by push rod 108 during braking; Adjustment tank T2 can be arranged on one and be set on the bevel gear 2a of rotating shaft 2, and an end of rotating shaft 2 is fixed on pressure seat 1, bevel gear 2a and bevel gear 4 engagements that are connected on transmission shaft 3.Have cooperatively interacting of gap μ between adjustment block T1 and adjustment tank T2, refer to Fig. 4, gap μ should with brake disc 104 and brake pad 106 between gap delta (referring to Fig. 5) corresponding.During braking, adjust arm 103 and promote to rotate in rotating shaft 2, because rotating shaft 2 is provided with eccentric disc 2b, when rotating shaft 2 is rotated, eccentric disc 2b promotes pressure seat 1 and push-plate 107 presses to brake disc 104, is braked.Under normal circumstances, the rotation of rotating shaft 2, adjustment block T1 is rotated in adjustment tank T2, can not touch adjustment tank T2 and rotate therewith, only have when the gap of brake disc 104 and brake pad 106 increases because of wearing and tearing, the rotation angle of rotating shaft 2 increases, the rotation angle of adjustment block T1 is increased over gap μ, adjustment block T1 touches adjustment tank T2(and sees Fig. 6) make bevel gear 2a do rotating in same direction with rotating shaft 2, by the engagement of bevel gear 2a and bevel gear 4, transmission shaft 3 is rotated.
For the rotation by transmission shaft 3 passes, and then promote the wearing clearance that push-plate 107 compensates increase, adopted gear transmission unit 5, this gear unit comprises input gear 5a, output gear 5c and excessive gear 5b.Carry out engagement driving by least one excessive gear 5b between input gear 5a and output gear 5c.
It is upper that each gear in said gear gear unit 5 is arranged on a gear stand 5d, refers to Fig. 6, Fig. 7.This gear stand 5d is arranged on a side of pressure seat 1, it mainly is comprised of two dunnage 5d1 and some rivet 5d2, the parallel placement of two dunnage 5d1, be spaced from each other certain distance and riveted by rivet 5d2, each gear engagement driving in the space between the flat 5d1 of two dunnages of gear transmission single 5.Between two dunnages and corresponding to the riveted joint of transition gear position, rotating shaft 5d3 is arranged, transition gear 5b is rotatably connected in this rotating shaft.Two dunnage 5d1, corresponding to the input gear position, are respectively equipped with the first structure hole 5d11 that allows this input gear pass through; On two dunnages and the second structure hole 5d12 that is respectively equipped with the attachment hole 5d3 for making this output gear radial location and allows this output gear pass through corresponding to the output gear position, output gear 5c mono-end is rotationally connected with the attachment hole 5d13 on a side dunnage, carry out radial location by this hole, the second structure hole 5d12 and spiral pushing unit 7 on the opposite side dunnage that an end passes through are in transmission connection.
Spiral pushing unit 7 comprises adjusting sleeve 7a and screw rod 7b, and adjusting sleeve 7a is rotatably connected in the corresponding aperture of pressure seat 1, and by flange edge 7a1 and the jump ring 7c of an end, it is axially located in corresponding aperture.Adjusting sleeve 7a center is provided with screw, and screw rod 7b is screwed in this screw.Adjusting sleeve is by the hole of an end and the end drive fit of the output gear 5c that passes through the second structure hole 5d12, to reach the purpose be connected with the rotating shaft of output gear 5c.Screw rod 7b mono-end is connected with the push-plate 106 on caliper 105.When output gear 5c drives adjusting sleeve 7a rotation, screw rod 7b drives push-plate and axially moves.
Above-mentioned spiral pushing unit 7 also can arrange like this: adjusting sleeve 7a is slidably connected in the pressure seat corresponding aperture, and same adjusting sleeve 7a center is provided with screw, and screw rod 7b is screwed in this screw.Screw rod 7b mono-end is connected with the end of output gear 5c by the second structure hole 5d12, realizes coaxial rotation.Adjusting sleeve one end is connected with the push-plate 106 on caliper 105.When output gear 5c drives screw rod 7b rotation, adjusting sleeve 7a drives push-plate and axially moves.
The structure of pressure seat 1 is provided with eccentric disc hole 1a as the Tu1，Qi center, and in this eccentric disc hole, symmetrical both sides are provided with the adjustment trepanning 1b vertical with the eccentric disc hole, and this adjustment trepanning 1b can be unthreaded hole or the dowel hole that is provided with keyway.It is a unthreaded hole that the present embodiment is adjusted trepanning 1b, and referring to Fig. 1, eccentric disc is supported in the 1a of eccentric disc hole by bearing; Rotating being matched with of adjusting sleeve 7a adjusted in trepanning 1b, and limits axial position by flange edge 7a1 and jump ring 7c, the motion that only rotates in adjusting trepanning 1b, thus guarantee that screw rod 7b axially moves.Be designed to dowel hole if will adjust trepanning 1b, adjusting sleeve 7a axially moves in adjusting trepanning 1b, can not rotate, and when screw rod 7b rotates with output gear 5c, the adjusting sleeve 7a spun with screw rod 7b screw thread axially moves.
Rocker compensating gear of the present invention, when brake clearance rotates transmission shaft 2 because wearing and tearing increase the gap delta that surpasses setting, by the input gear 5a in overrunning clutch 6 driven gear gear units 5, and by the output gear 5c drving sprial pushing unit 7 in this gear transmission unit 5, the two adjusting sleeve 7a that drive wherein rotate, two adjust screw rod 7b moves axially, thereby parallel and promote reposefully push-plate 107 and move forward, the gap increased due to wearing and tearing with compensation, the distance that the adjustment screw rod advances equals the wear extent of essential compensation.
Owing to having adopted an overrunning clutch, the rotation of 3 pairs of brake clearance compensation of transmission shaft and other rotation are separated, guaranteed that other rotations can not cause interference to the brake clearance compensation.Make the brake clearance adjustment accurate, braking maneuver is reliable.
Claims (10)
1. the brake clearance compensation mechanism based on air-pressure disc brake, be placed in push-plate one side of described break, it is characterized in that comprising the transmission shaft that brake clearance is compensated, overrunning clutch, gear transmission unit, spiral pushing unit and pressure seat, described transmission shaft is by the be in transmission connection input end of gear transmission unit of described overrunning clutch, make this gear transmission unit do the transmission of single direction, described spiral pushing unit is placed on described pressure seat, the output terminal of this spiral pushing unit connects described push-plate, the be in transmission connection input end of spiral pushing unit of the output terminal of gear transmission unit, make the output terminal of spiral pushing unit do screw axis to the moving axially of single direction, promote push-plate and do the movement of brake clearance compensation.
2. the brake clearance compensation mechanism based on air-pressure disc brake according to claim 1, it is characterized in that described gear transmission unit comprises input gear, output gear and excessive gear, carries out engagement driving by least one excessive gear between described input gear and output gear.
3. the brake clearance based on air-pressure disc brake according to claim 2 is adjusted the compensation driving mechanism, it is characterized in that each gear rotation of described gear transmission unit is arranged on a gear stand, and this gear stand is placed in a side of described pressure seat.
4. the brake clearance compensation mechanism based on air-pressure disc brake according to claim 3, it is characterized in that described excessive gear and output gear have respectively two, the excessive gear that place by symmetry respectively the symmetrical both sides of described input gear carries out engagement driving with the symmetrical output gear of placing.
5. the brake clearance compensation mechanism based on air-pressure disc brake according to the described any one of claim 2-4, is characterized in that described transmission shaft connects input gear by overrunning clutch, to realize the transmission to the single direction of described gear transmission unit.
6. the brake clearance compensation mechanism based on air-pressure disc brake according to claim 5, is characterized in that described overrunning clutch is unilateral bearing.
7. the brake clearance compensation mechanism based on air-pressure disc brake according to claim 6, its feature comprises adjusting sleeve and screw rod in described spiral pushing unit, described adjusting sleeve is movably connected on described pressure seat, the adjusting sleeve center is provided with screw, described screw rod is screwed in this screw, adjusting sleeve or screw rod are connected with the rotating shaft of described output gear, the corresponding screw rod that is rotatably connected in adjusting sleeve or adjusting sleeve one end that is rotatably connected in screw rod are connected with described push-plate, when output gear drives adjusting sleeve or bolt rotary, screw rod or adjusting sleeve drive push-plate and axially move.
8. the brake clearance compensation mechanism based on air-pressure disc brake according to claim 7, is characterized in that described pressure seat is provided with symmetrically arranged adjustment trepanning, and described adjusting sleeve is placed in adjusts trepanning.
9. the brake clearance compensation mechanism based on air-pressure disc brake according to claim 8, it is characterized in that described adjusting sleeve is rotatably connected in described adjustment trepanning and with output gear is connected, screw rod is screwed in screw corresponding to adjusting sleeve, one end is connected with push-plate, when output gear drives the adjusting sleeve rotation, screw rod drives push-plate and axially moves.
10. the brake clearance based on air-pressure disc brake according to claim 8 is adjusted the compensation driving mechanism, it is characterized in that described adjusting sleeve is slidably connected in described adjustment trepanning, one end is connected with push-plate, screw rod is screwed in screw corresponding to adjusting sleeve, one end is connected with output gear, when output gear drives bolt rotary, adjusting sleeve drives push-plate and axially moves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310276783.1A CN103486167A (en) | 2013-07-03 | 2013-07-03 | Braking-clearance compensating mechanism based on atmospheric-pressure disc type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310276783.1A CN103486167A (en) | 2013-07-03 | 2013-07-03 | Braking-clearance compensating mechanism based on atmospheric-pressure disc type brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103486167A true CN103486167A (en) | 2014-01-01 |
Family
ID=49826656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310276783.1A Pending CN103486167A (en) | 2013-07-03 | 2013-07-03 | Braking-clearance compensating mechanism based on atmospheric-pressure disc type brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103486167A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5738189A (en) * | 1997-02-27 | 1998-04-14 | Bennett; John L. | Adjustment mechanism for disc brake, with improved over-torque clutch |
| US5794738A (en) * | 1996-11-12 | 1998-08-18 | Rockwell Heavy Vehicle Systems, Inc. | Disc brake with gear driven adjusting piston |
| JPH10318305A (en) * | 1997-05-14 | 1998-12-04 | Akebono Brake Ind Co Ltd | Adjuster of disc brake gear |
| US20050269171A1 (en) * | 2003-01-31 | 2005-12-08 | Arvinmeritor Technology, Llc | Rapid take up and vibration proof adjuster mechanism |
| CN201661632U (en) * | 2010-04-19 | 2010-12-01 | 宁波合力汽车零部件有限公司 | Automobile brake clearance automatic adjusting arm |
| CN203404294U (en) * | 2013-07-03 | 2014-01-22 | 李应声 | Brake clearance compensation mechanism based on air-pressure disk type brake |
-
2013
- 2013-07-03 CN CN201310276783.1A patent/CN103486167A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794738A (en) * | 1996-11-12 | 1998-08-18 | Rockwell Heavy Vehicle Systems, Inc. | Disc brake with gear driven adjusting piston |
| US5738189A (en) * | 1997-02-27 | 1998-04-14 | Bennett; John L. | Adjustment mechanism for disc brake, with improved over-torque clutch |
| JPH10318305A (en) * | 1997-05-14 | 1998-12-04 | Akebono Brake Ind Co Ltd | Adjuster of disc brake gear |
| US20050269171A1 (en) * | 2003-01-31 | 2005-12-08 | Arvinmeritor Technology, Llc | Rapid take up and vibration proof adjuster mechanism |
| CN201661632U (en) * | 2010-04-19 | 2010-12-01 | 宁波合力汽车零部件有限公司 | Automobile brake clearance automatic adjusting arm |
| CN203404294U (en) * | 2013-07-03 | 2014-01-22 | 李应声 | Brake clearance compensation mechanism based on air-pressure disk type brake |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103671652B (en) | What have gap adjustment function parks oil cylinder | |
| CN101457804B (en) | Stopping caliper | |
| CN103335034B (en) | A kind of air-pressure disc brake | |
| CN100497987C (en) | Arm for automatically regulating clearance of brake of automobile | |
| CN103115094B (en) | A kind of regulator of clearance self-regulating mechanism in automobile disc brake | |
| CN103987982A (en) | Synchronizing device between two revolving components | |
| CN203655982U (en) | Gap adjusting mechanism of air pressure disk brake | |
| CN203404294U (en) | Brake clearance compensation mechanism based on air-pressure disk type brake | |
| CN103016581B (en) | Gap self-adjusting mechanism and disc brake | |
| CN106438742A (en) | Gearbox with manual clutch function | |
| CN203082095U (en) | Air-pressure disk type brake clutching adjuster | |
| CN103486167A (en) | Braking-clearance compensating mechanism based on atmospheric-pressure disc type brake | |
| CN202946595U (en) | Clearance self-adjusting mechanism and disc brake | |
| CN103423347A (en) | Gap adjusting mechanism based on air pressure disc brake | |
| CN203404296U (en) | Clearance adjustment mechanism based on air pressure disc brake | |
| KR20160097333A (en) | A final drive for a road vehicle | |
| CN203404295U (en) | Brake clearance change inducting mechanism based on air-pressure disk type brake | |
| CN203404282U (en) | Air pressure disc type brake | |
| CN103629279A (en) | Gap adjusting mechanism for air pressure disc brake | |
| CN104428555B (en) | There is the disk brake for vehicle of gear linkage | |
| CN103423346A (en) | Brake clearance change sensing mechanism based on air pressure disc brake | |
| CN203434804U (en) | Brake motor | |
| CN109899422B (en) | Thrust actuating mechanism for disc brake of electric control mechanical braking system | |
| CN206530654U (en) | Efficient reduction gear on starter | |
| CN104879474B (en) | A kind of two speed transmissions wheel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140101 |