CN108482345B - Braking device - Google Patents
Braking device Download PDFInfo
- Publication number
- CN108482345B CN108482345B CN201810276867.8A CN201810276867A CN108482345B CN 108482345 B CN108482345 B CN 108482345B CN 201810276867 A CN201810276867 A CN 201810276867A CN 108482345 B CN108482345 B CN 108482345B
- Authority
- CN
- China
- Prior art keywords
- pedal
- lever ratio
- switching device
- ratio switching
- pedal arm
- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T7/00—Brake-action initiating means
- B60T7/02—Brake-action initiating means for personal initiation
- B60T7/04—Brake-action initiating means for personal initiation foot actuated
- B60T7/06—Disposition of pedal
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
- B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
- B60T11/04—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically
- B60T11/08—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting mechanically providing variable leverage
Abstract
The invention discloses a braking device which comprises a first upper pedal arm, a second upper pedal arm, a lower pedal arm, a connecting shaft, a first lever ratio switching device, a second lever ratio switching device, a cam, a first pedal resetting device, a second pedal resetting device and a pedal fixing support, wherein the cam is connected with a motor through a coupler shaft, the first pedal resetting device and the second pedal resetting device are fixed on the pedal fixing support, the first lever ratio switching device and the second lever ratio switching device are fixed on the pedal fixing support, the lengths of the first upper pedal arm and the second upper pedal arm are different, and the first upper pedal arm and the second upper pedal arm are connected with the lower pedal arm through the connecting shaft. The invention realizes the switching of the lever ratios of the two brake pedals through the brake lever ratio adjusting device, thereby having two types of brake sensitivity and enabling a user to switch different brake sensitivity modes according to the use habit.
Description
Technical Field
The invention relates to the technical field of mechanical braking of automobiles, in particular to a braking device.
Background
The perception and demand of brake sensitivity for automobiles is different for different customers, some customers prefer a higher sensitivity, fast response braking mode, and some customers prefer a lower sensitivity, gentle response braking mode. The current automobile braking system has fixed braking sensitivity and cannot meet the requirements of all users on steering sensitivity.
The conventional brake pedal structure is composed of a brake pedal 17, a pedal fixing bracket (left & right) 18, and a pedal return device 19, as shown in fig. 1, and the pedal lever ratio thereof is fixed.
Disclosure of Invention
The present invention is directed to solving the problems set forth in the background art and providing a brake device.
The invention improves the traditional brake pedal mechanism, so that the brake pedal mechanism has two sets of pedal lever ratios and can be freely switched between the two sets of lever ratios.
The invention discloses a brake device, which comprises a first upper pedal arm, a second upper pedal arm, a lower pedal arm, a connecting shaft, a first lever ratio switching device, a second lever ratio switching device, a cam, a first pedal resetting device, a second pedal resetting device and a pedal fixing support, wherein the cam is connected with a motor through a coupler shaft, the first pedal resetting device and the second pedal resetting device are fixed on the upper part of the pedal fixing support, the first lever ratio switching device and the second lever ratio switching device are fixed on the lower part of the pedal fixing support, the lengths of the first upper pedal arm and the second upper pedal arm are different, and the first upper pedal arm, the second upper pedal arm and the lower pedal arm are connected through the connecting shaft.
Further, the first pedal resetting device comprises a first sleeve, the first sleeve is sleeved on a first bolt matched with the first sleeve, the tail of the first bolt is sleeved with the first upper pedal arm and the resetting spring in sequence, and the first pedal resetting device is fixed on the pedal fixing support through cooperation with a nut.
The second pedal reset device comprises a second sleeve, the second sleeve is sleeved on a second bolt matched with the second sleeve, and the tail of the second bolt is sleeved with the second upper pedal arm and the reset spring in sequence and then is matched with a nut to fix the second pedal reset device on the pedal fixing support.
Further, the second lever ratio switching device is identical in structure to the first lever ratio switching device.
Further, the first lever ratio switching device is composed of a tray, a top shaft, a reset spring, an end cover, a bolt and a nut, guide racks are arranged in the circumferential direction of the top shaft, long guide grooves and short guide grooves which are alternately arranged are arranged in the tray, and the guide racks can be meshed with the long guide grooves and the short guide grooves.
Further, the second lever ratio switching device has the same structure as the first lever ratio switching device, except that the depth of the short guide groove of the second lever ratio switching device is slightly smaller than that of the first lever ratio switching device.
Further, the guide rack and the top shaft are integrally formed.
Still further, the distance between the top shaft and the connecting shaft is 1-2mm.
Further, the connecting shaft is of a cuboid block structure.
The invention has the advantages and positive effects that:
the invention realizes the switching of the lever ratios of the two brake pedals through the brake lever ratio adjusting device, thereby having two types of brake sensitivity and enabling a user to switch different brake sensitivity modes according to the use habit. In the actual use process of the user, the user can select a required mode through keys on the instrument panel.
Drawings
FIG. 1 is a conventional brake pedal configuration;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic view of a second upper pedal arm and lower pedal arm connected by a connecting shaft;
FIG. 4 is a schematic diagram of a first lever ratio switching device;
FIG. 5 is a schematic view of the top shaft and tray construction;
FIG. 6 is a first lever ratio switching device operating state a;
FIG. 7 is a first lever ratio switching device operating state b;
FIG. 8 is a first lever ratio switching device operating state c;
FIG. 9 is a first lever ratio switching device operating state d;
the labeling meanings in fig. 1-9 are as follows: the pedal device comprises a first upper pedal arm 1, a second upper pedal arm 2, a lower pedal arm 3, a connecting shaft 4, a first lever ratio switching device 5, a second lever ratio switching device 6, a cam 7, a first pedal resetting device 8, a second pedal resetting device 9, a pedal fixing bracket 10, a tray 11, a top shaft 12, an end cover 13, a guide rack 14, a long guide groove 15 and a short guide groove 16.
Detailed Description
It should be noted that the positional or positional relationship indicated by the terms "first", "second", "left", "right", etc. are based on the positional or positional relationship shown in the drawings, are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
1-5, a brake device comprises a first upper pedal arm 1, a second upper pedal arm 2, a lower pedal arm 3, a connecting shaft 4, a first lever ratio switching device 5, a second lever ratio switching device 6, a cam 7, a first pedal resetting device 8, a second pedal resetting device 9 and a pedal fixing bracket 10,
the cam 7 is connected with the motor through a shaft coupling shaft, the first pedal reset device 8 comprises a first sleeve, the first sleeve is sleeved on a first bolt matched with the first sleeve, the tail of the first bolt is sleeved with the first upper pedal arm 1 and the reset spring in sequence, the first pedal reset device 8 is fixed on the upper part of the pedal fixing bracket 10 through matching with a nut, the second pedal reset device 9 comprises a second sleeve, the second sleeve is sleeved on a second bolt matched with the second sleeve, the second bolt tail is sleeved with the second upper pedal arm 2 and the reset spring in sequence, the second pedal reset device 9 is fixed on the pedal fixing bracket 10 through matching with a nut, the first lever ratio switching device 5 and the second lever ratio switching device 6 are respectively fixed on the lower part of the pedal fixing bracket 10 through matching with the bolt and the nut, the first upper pedal arm 1 and the second upper pedal arm 2 are in different block shapes in length, the first upper pedal arm 1, the second pedal arm 2 and the lower pedal arm 3 are connected with the pedal 4 through a rectangular shaft connecting structure,
the first upper pedal arm 1 and the lower pedal arm 3, the second upper pedal arm 2 and the lower pedal arm 3 form two lever ratios, the first lever ratio switching device 5 is composed of a tray 11, a top shaft 12, a reset spring, an end cover 13, bolts and nuts, guide racks 14 are arranged in the circumferential direction of the top shaft 12, long guide grooves 15 and short guide grooves 16 which are alternately arranged are arranged in the tray 11, the guide racks 14 can be meshed with the long guide grooves 15 and the short guide grooves 16, the guide racks 14 and the top shaft 12 are integrally formed, and the distance between the top shaft and a connecting shaft is 1-2mm.
The second lever ratio switching device 6 is identical in structure to the first lever ratio switching device 5.
The motor driving cam 7 is intermittently and reciprocally contacted with the first lever ratio switching device 5 to provide a power source for lever ratio switching, and the starting and stopping of the motor are controlled by a switch in a cab.
The working principle of the first lever ratio switching device is that when the first lever ratio switching device 5 is in a state a, the guide rack 14 of the top shaft 12 is meshed with the long guide groove 15 of the tray 11, and the reset spring is in an unstressed state at the moment; when the top shaft 12 is pushed from right to left, the top shaft 12 compresses the return spring to the limit position, at which time the guide rack 14 of the top shaft 12 has been disengaged from the long guide groove 15 of the tray 11, as shown in state b; after the pushing of the top shaft 12 is stopped, under the action of the rebound force of the return spring, the inclined edge of the top shaft 12 guiding rack 14 is cut with the inclined edge of the guiding groove of the tray 11, as shown in a state c; under the continuous action of the return spring, the guide rack 14 of the top shaft 12 is meshed with the short guide groove 16 of the tray 11, as shown in a state d; when the top shaft 12 is pushed further from right to left, the first leverage ratio switching device 5 is restored to the state a.
The working principle of the invention for realizing the lever ratio switching by means of the first lever ratio switching device and the second lever ratio switching device is explained as follows:
1) The first upper pedal arm and the lower pedal arm are connected by a connecting shaft and are combined with the first pedal resetting device to form a pedal mechanism with small lever ratio, at the moment, the first lever ratio switching device and the second lever ratio switching device are in a state a in fig. 6, the top shafts of the first lever ratio switching device and the second lever ratio switching device play a limiting role on the connecting shaft, and the connecting shaft is prevented from being connected with the second upper pedal arm due to displacement caused by shaking.
2) Pressing a control switch in the cab, driving a cam to rotate by a motor, and pushing a top shaft of a first lever ratio switching device to move from right to left by the cam, wherein the top shaft pushes a connecting shaft to be separated from a first upper pedal arm and combined with a second upper pedal arm until a cam shaft reaches a limit position, and the first lever ratio switching device and the second lever ratio switching device are in a state b shown in fig. 7; with the continuous rotation of the cam shaft, the top shafts of the first lever ratio switching device and the second lever ratio switching device move from left to right under the action of the rebound force of the respective return springs, and because the depth of the short guide groove of the tray of the second lever ratio switching device is slightly smaller than that of the tray of the second lever ratio switching device, after the first lever ratio switching device and the second lever ratio switching device are reset, a gap of 1-2mm exists between the connecting shaft and the top shaft of the first lever ratio switching device, so that mutual interference is prevented in the movement process, and at the moment, the second upper pedal arm, the lower pedal arm, the connecting shaft and the second pedal reset device form a large lever ratio pedal device.
3) When a driver thinks of switching to a pedal state with a small lever ratio, pressing a switch in the cab, driving a cam to rotate by a motor, and pushing a top shaft-connecting shaft-top shaft of a first lever ratio switching device to move from right to left to reach a limit position by the cam, wherein a top shaft guide rack of the first lever ratio switching device and a top shaft guide rack of the second lever ratio switching device are separated from a tray short guide groove; the motor continues to drive the cam to rotate, under the action of the return springs of the first lever ratio switching device and the second lever ratio switching device, the top shaft of the first lever ratio switching device, the connecting shaft of the first lever ratio switching device, the top shaft of the first lever ratio switching device and the top shaft of the second lever ratio switching device move from left to right, the connecting shaft is separated from the second upper pedal arm and is connected with the first upper pedal arm, and the first upper pedal arm-lower pedal arm-connecting shaft-first pedal return device forms a small lever ratio pedal device.
The above embodiments are merely preferred embodiments of the present invention, and any simple modification, modification and substitution changes made to the above embodiments according to the technical substance of the present invention are all within the scope of the technical solution of the present invention.
Claims (6)
1. A braking device, characterized in that: the pedal comprises a first upper pedal arm, a second upper pedal arm, a lower pedal arm, a connecting shaft, a first lever ratio switching device, a second lever ratio switching device, a cam, a first pedal resetting device, a second pedal resetting device and a pedal fixing support, wherein the cam is connected with a motor through a coupler shaft, the first pedal resetting device and the second pedal resetting device are fixed on the upper part of the pedal fixing support, the first lever ratio switching device and the second lever ratio switching device are fixed on the lower part of the pedal fixing support, the lengths of the first upper pedal arm and the second upper pedal arm are different, and the first upper pedal arm, the second upper pedal arm and the lower pedal arm are connected through the connecting shaft;
the first pedal reset device comprises a first sleeve, the first sleeve is sleeved on a first bolt matched with the first sleeve, the tail of the first bolt is sleeved with the first upper pedal arm and the reset spring in sequence, and the first sleeve is matched with a nut to fix the first pedal reset device on the pedal fixing bracket;
the second pedal reset device comprises a second sleeve, the second sleeve is sleeved on a second bolt matched with the second sleeve, the tail of the second bolt is sleeved with the second upper pedal arm and the reset spring in sequence, and the second sleeve is matched with a nut to fix the second pedal reset device on the pedal fixing bracket;
the second lever ratio switching device has the same structure as the first lever ratio switching device.
2. A brake apparatus according to claim 1, wherein: the first lever ratio switching device consists of a tray, a top shaft, a reset spring, an end cover, a bolt and a nut, wherein guide racks are arranged in the circumferential direction of the top shaft, long guide grooves and short guide grooves which are alternately arranged are arranged in the tray, and the guide racks can be meshed with the long guide grooves and the short guide grooves.
3. A brake apparatus according to claim 2, wherein: the second lever ratio switching device has the same structure as the first lever ratio switching device, and the difference is that the depth of the short guide groove of the second lever ratio switching device is slightly smaller than that of the first lever ratio switching device.
4. A brake apparatus according to claim 2, wherein: the guide rack and the top shaft are integrally formed.
5. A brake apparatus according to claim 2, wherein: the distance between the top shaft and the connecting shaft is 1-2mm.
6. A brake apparatus according to claim 1, wherein: the connecting shaft is of a cuboid block structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276867.8A CN108482345B (en) | 2018-03-30 | 2018-03-30 | Braking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810276867.8A CN108482345B (en) | 2018-03-30 | 2018-03-30 | Braking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108482345A CN108482345A (en) | 2018-09-04 |
| CN108482345B true CN108482345B (en) | 2023-07-21 |
Family
ID=63317111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810276867.8A Active CN108482345B (en) | 2018-03-30 | 2018-03-30 | Braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108482345B (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102935845A (en) * | 2012-10-22 | 2013-02-20 | 安徽誉丰汽车技术有限责任公司 | Brake pedal of adjustable lever |
| CN103010022B (en) * | 2012-12-07 | 2015-06-10 | 奇瑞汽车股份有限公司 | Pedal with adjustable lever ratio and automobile |
| CN103587514A (en) * | 2013-11-19 | 2014-02-19 | 富卓汽车内饰（安徽）有限公司 | Brake pedal structure for automobile |
| CN104670188A (en) * | 2014-12-23 | 2015-06-03 | 奇瑞商用车（安徽）有限公司 | Automobile brake pedal structure with adjustable lever ratio |
-
2018
- 2018-03-30 CN CN201810276867.8A patent/CN108482345B/en active Active
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| Publication number | Publication date |
|---|---|
| CN108482345A (en) | 2018-09-04 |
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