CN2456979Y - Gap automatic regulating arm of automobile brake - Google Patents
Gap automatic regulating arm of automobile brake Download PDFInfo
- Publication number
- CN2456979Y CN2456979Y CN 00259577 CN00259577U CN2456979Y CN 2456979 Y CN2456979 Y CN 2456979Y CN 00259577 CN00259577 CN 00259577 CN 00259577 U CN00259577 U CN 00259577U CN 2456979 Y CN2456979 Y CN 2456979Y
- Authority
- CN
- China
- Prior art keywords
- connecting rod
- housing
- worm screw
- worm
- shell
- 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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Abstract
The utility model discloses a gap automatic regulating arm of an automobile brake. The utility model comprises a shell, wherein, a worm wheel and a worm are arranged in the shell. One end of the worm is provided with a one-way clutch, a lining sleeve, a spring, and a through cover. The other end of the worm is sheathed with a disk spring and a gland bush. The outside of the shell is provided with a connecting rod and a connecting fork. The connecting fork is hinged with the connecting rod and the end part of the shell. The lower end of the connecting rod passes through the shell. The lower end of the connecting rod is connected with the one-way clutch in the shell. An automobile adopting the automatic regulating arm can cause gaps of a front wheel and a rear wheel of the brake of the automobile to be consistent and be synchronously braked. The utility model reduces the probability of producing brake distance deviation, and enhances brake stability.
Description
The utility model relates to a kind of device that is used to adjust gap between automobile brake drum and the friction lining.
Automobile needs frequent apply the brakes in the process of moving.Long-term use just causes the gap between automobile brake drum and the friction lining to become big gradually.Like this, the gap between the four wheels of automobile can not be equal to, and can produce phenomenons such as stopping distance is excessive, sideslip, brake wheel mistake circle, brings unsafe hidden danger to driving, even can cause traffic accident.At present, be to adopt manually to adjust to this problem method commonly used.Because hand adjustment often can not be accomplished promptly and accurately, therefore many people have designed various automatic regulating apparatuses, the arm for adjusting automobile brake clearance automatically that provides as Chinese patent 97244388.6, it is to adopt the adjustment final gear that is provided with in housing with the coaxial running-fit of worm gear, this gear is meshed with adjusting idle wheel again, with coaxial initiatively helical wheel and the power assistant spring of being fixedly connected with of adjustment idle wheel, utilize a cover mechanical transmission mechanism of setting up, reach the self-align purpose.But apparent above-mentioned structure is quite complicated, break down easily in the actual use, and the cost of product is higher, is difficult to be used widely.And other design plan also exists similar problem at present.
The purpose of this utility model is to overcome the problems referred to above, provides that a kind of structure is simple relatively, stable performance, practical automotive brake clearance automatic compensation arm.
The purpose of this utility model realizes by following technical proposal: this automotive brake clearance automatic compensation arm comprises housing, the worm screw of worm gear being housed in the housing and cooperating with worm gear, the end of worm screw is provided with free-wheel clutch, lining, spring and the Tong Gai that is enclosed within on the worm screw, the other end is with disk spring and gland, the arranged outside connecting rod and the shaft clevis of housing, the end of shaft clevis and connecting rod and housing is hinged, and housing is passed in the lower end of connecting rod, connects with free-wheel clutch in the housing.This adjusting arm is to utilize connecting rod and free-wheel clutch, and adds axial load by belleville spring, makes unidirectional self-align.Simultaneously, this adjusting arm also can carry out manual regulation by rotary worm.
After automobile adopts this automatic compensation arm, can make automobile remain best setting value in the gap between brake wheel and the friction lining in the process of moving, front and rear wheel brake gap unanimity, braking is synchronously, reduce producing braking, improved the stability of braking apart from inclined to one side probability.
Concrete structure of the present utility model is provided by following embodiment and accompanying drawing thereof.
Fig. 1 is the structural representation of the automotive brake clearance automatic compensation arm that provides of the utility model.
Fig. 2 is the partial cutaway schematic at worm gear and worm screw place in the utility model.
Among the figure, 1, housing; 2, worm gear; 3, worm screw; 4, free-wheel clutch; 5, lining; 6, spring; 7, Tong Gai; 8, disk spring; 9, gland; 10, connecting rod; 11, shaft clevis; 12, stator; 13, moving plate; 14, recess; 15, plush copper.
As shown in Figure 1, this automotive brake clearance automatic compensation arm is made up of parts such as housing 1, worm gear 2, worm screw 3, free-wheel clutch 4 and connecting rods 10.Worm screw 3 cooperatively interacts with worm gear 2, is arranged in the inner chamber of housing 1.The end of worm screw 3 is with free-wheel clutch 4, lining 5, spring 6 and Tong Gai 7.In the present embodiment, free-wheel clutch 4 is made up of intermeshing stator 12 and moving plate 13.Moving plate 13 also by teeth and worm screw 3 engagements, can rotate along with worm screw 3 together.Lining 5 is positioned at the inboard of stator 12, and spring 6 roof pressures are at the sidepiece of stator 12.Spring 6 outer logical lids 7 connect with housing 1 by screw thread, make the part location of worm screw 3 these ends.In addition, the end of worm screw 3 is also stretched out to lead to and is covered 7, is used for the hand adjustment of this adjusting arm.The other end of worm screw 3 is disk spring 8 and gland 9.Gland 9 connects with housing 1 by screw thread, pushes down disk spring 8.
As shown in Figure 1, the connecting rod 10 in housing 1 outside passes housing 1.Shaft clevis 11 outside the housing 1 is simultaneously hinged with connecting rod 10 and housing 1 upper end.As shown in Figure 2, the inner of connecting rod 10 has recess 14, and stator 12 peripheries of free-wheel clutch 4 are provided with a plush copper 15, and this plush copper 15 is arranged in recess 14.Therefore, the stator 12 that can cause free-wheel clutch 4 that moves up and down of connecting rod 10 rotates.
The adjusting arm that the utility model provides is to install like this: at first shaft clevis 11 is connected with the push rod of automobile brake chamber; The housing 1 of adjusting arm is fixed on the automobile; At last the camshaft of car brake is inserted in the worm gear 2 of adjusting arm.
Working process of the present utility model is: glancing impact, chaufeur is stepped on brake pedal, makes brake activation valve output pressurized air as control signal through transmission device, arrives compressed air brake cylinder through pneumatic actuator system again, compressed air brake cylinder is converted to air chamber push rod power with gaseous tension, acts on braking adjusting arm.Braking adjusting arm moves downward, and connecting rod 10 tensions stand away, and worm screw 3 moves the arm in the brake system prior to worm gear 2.When releasing or loosen the brake, the air chamber push rod drives braking adjusting arm and moves round about.In braking or brake off process, the push rod in the compressed air brake cylinder is reciprocating, and connecting rod 10 also pumps thereupon.The recess 14 of connecting rod 10 the inners has certain sky to sail stroke, promptly gives and stays gap width.In this gave the stroke range of leaving a blank, braking procedure was not adjusted.In the utility model,,, produce the automatic compensation function so connecting rod 10 can only drive worm screw 3 in a direction because free-wheel clutch 4 is arranged.
Claims (5)
1, a kind of automotive brake clearance automatic compensation arm, comprise housing (1), the worm screw (3) of worm gear (2) being housed in the housing (1) and cooperating with worm gear (2), an end that it is characterized in that described worm screw (3) is provided with the free-wheel clutch (4) that is enclosed within on the worm screw (3), lining (5), spring (6) He Tonggai (7), the other end is with disk spring (8) and gland (9), the arranged outside connecting rod (10) of housing (1) and shaft clevis (11), shaft clevis (11) is hinged with the end of connecting rod (10) and housing (1), housing (1) is passed in the lower end of connecting rod (10), and the free-wheel clutch (4) interior with housing (1) connects.
2, automotive brake clearance automatic compensation arm according to claim 1 is characterized in that described free-wheel clutch (4) is made up of intermeshing stator (12) and moving plate (13).
3, automotive brake clearance automatic compensation arm according to claim 2 is characterized in that described moving plate (13) by teeth and worm screw (3) engagement, can rotate together along with worm screw (3).
4, according to claim 2 or 3 described automotive brake clearance automatic compensation arms, the inner that it is characterized in that described connecting rod (10) has recess (14), stator (12) periphery of free-wheel clutch (4) is provided with a plush copper (15), and this plush copper (15) is arranged in recess (14).
5,, it is characterized in that logical lid (7) is stretched out in the end of described worm screw (3) according to claim 1,2 or 3 described automotive brake clearance automatic compensation arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00259577 CN2456979Y (en) | 2000-12-13 | 2000-12-13 | Gap automatic regulating arm of automobile brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00259577 CN2456979Y (en) | 2000-12-13 | 2000-12-13 | Gap automatic regulating arm of automobile brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2456979Y true CN2456979Y (en) | 2001-10-31 |
Family
ID=33615568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00259577 Expired - Fee Related CN2456979Y (en) | 2000-12-13 | 2000-12-13 | Gap automatic regulating arm of automobile brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2456979Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425653A (en) * | 2011-12-08 | 2012-04-25 | 江阴凯迈机械有限公司 | Compact zero-gap worm slewing drive device |
-
2000
- 2000-12-13 CN CN 00259577 patent/CN2456979Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425653A (en) * | 2011-12-08 | 2012-04-25 | 江阴凯迈机械有限公司 | Compact zero-gap worm slewing drive device |
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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 |