CN115258021B - Vehicle type braking system structure and front-rear switching mechanism positioning calculation method thereof - Google Patents
Vehicle type braking system structure and front-rear switching mechanism positioning calculation method thereof Download PDFInfo
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- CN115258021B CN115258021B CN202210890709.8A CN202210890709A CN115258021B CN 115258021 B CN115258021 B CN 115258021B CN 202210890709 A CN202210890709 A CN 202210890709A CN 115258021 B CN115258021 B CN 115258021B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 32
- 238000004364 calculation method Methods 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 16
- 230000003068 static effect Effects 0.000 claims abstract description 7
- 238000006073 displacement reaction Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 5
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 230000003139 buffering effect Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/02—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever
- B62L3/026—Brake-actuating mechanisms; Arrangements thereof for control by a hand lever actuation by a turning handle or handlebar
-
- 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
- B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
- B60T17/18—Safety devices; Monitoring
- B60T17/22—Devices for monitoring or checking brake systems; Signal devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62L—BRAKES SPECIALLY ADAPTED FOR CYCLES
- B62L3/00—Brake-actuating mechanisms; Arrangements thereof
- B62L3/04—Brake-actuating mechanisms; Arrangements thereof for control by a foot lever
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Transmission Of Braking Force In Braking Systems (AREA)
- Braking Elements And Transmission Devices (AREA)
Abstract
The invention relates to a vehicle type braking system structure and a front-rear switching mechanism positioning calculation method thereof. The brake operation assembly is arranged at the front end of the lower part of the vehicle body in the operation direction and is used for performing the step operation of braking; the brake sensing assembly is connected with the brake operation assembly and can carry out transmission brake operation according to the operation of the brake operation assembly; the brake sensor assembly is arranged at an operation platform at the front end of the vehicle body in the operation direction and is connected with the brake sensor assembly, and the brake sensor assembly can be driven to perform static brake operation through hand operation. And further provides a positioning calculation method of the front-rear switching mechanism, which can ensure that the braking gap is always ensured under the running state of empty, light load and heavy load of the whole vehicle so as to meet the braking performance requirement of mechanical braking.
Description
Technical Field
The invention relates to the field of mechanical vehicle type braking, in particular to a vehicle type braking system structure and a front-rear switching mechanism positioning calculation method thereof.
Background
As a conventional vehicle type structure, the electric tricycle has a common application range, is in a relatively mature structural form, and is deeply favored by wide users by the characteristics of simple operation, economic rationality, energy conservation, environmental protection and the like. However, in reality, the development and design of the electric tricycle are not too standard, so that certain problems exist in the aspect of playing a critical role in safety, and potential safety hazards exist in the aspect of more economical and practical mechanical braking. For a tricycle type, the structure and the position of a brake distribution shaft of the mechanical brake type have great influence on the braking performance of the whole tricycle, particularly the heavy-load electric tricycle type, are influenced by various factors such as the position of a battery, the direction of a motor and the like, and the reasonable arrangement position of the brake distribution shaft is limited.
The traditional tricycle type mechanical brake structure is characterized in that in the normal use process of a vehicle, under the conditions of no load, light load and heavy load, the stress of a steel plate spring is different, the position of a rear axle can be changed according to the influence of multiple factors such as uncertainty of road conditions, and the position change of a rear axle brake rocker arm is influenced, so that the potential safety hazard of braking is caused.
Disclosure of Invention
The invention aims to: the vehicle type braking system structure is provided, and a front-rear switching mechanism positioning calculation method based on the vehicle type braking system structure is further provided, so that the problems in the prior art are solved.
The technical scheme is as follows: a vehicle type brake system structure comprises a vehicle body for carrying integral parts, and further comprises three components of a brake operation assembly, a brake sensing assembly and a hand brake assembly.
The brake operation assembly is arranged at the front end of the lower part of the vehicle body in the operation direction and is used for performing the step operation of braking;
the brake sensing assembly is connected with the brake operation assembly and can perform corresponding transmission brake operation according to the operation of the brake operation assembly;
the hand braking component is arranged at the operation platform at the front end of the vehicle body in the operation direction and is connected with the braking sensing component, and the hand braking component can be driven to perform static braking operation through hand operation.
In a further embodiment, the brake operating assembly includes a brake pedal combination and a brake pedal lever. The brake pedal assembly is arranged at the front end of the lower part of the vehicle body in the working direction, and a pedal with a preset operation space is arranged at the front end of the brake pedal assembly in the working direction; the brake pedal assembly has a predetermined degree of bending. The brake pedal pull rod is connected with the rear end of the brake pedal combination working direction and can correspondingly drive along with the brake operation of the brake pedal combination.
In a further embodiment, the brake sensor assembly includes five portions of a brake distribution shaft set, a rear brake front drawbar, a front-rear transfer mechanism, a rear brake rear drawbar, and a rear brake rocker arm. The brake distribution shaft group is connected with the brake pedal pull rod and is used for mutual engagement and transmission between the brake operation assembly and the brake sensing assembly as well as between the brake operation assembly and the hand brake assembly; the rear braking front pull rod is connected with the braking distribution shaft group and can carry out corresponding braking operation along with the transmission of the braking distribution shaft group; the front-rear switching mechanism is connected with the rear braking front pull rod and is used for connecting and driving the front and rear parts in the working direction of the braking sensing assembly; the rear braking rear pull rod is connected with the front-rear switching mechanism and can carry out braking operation along with the transmission of the rear braking front pull rod; the rear brake rocker arm is connected with the rear brake rear pull rod and can carry out corresponding brake operation along with the braking of the rear brake rear pull rod.
In a further embodiment, the hand brake assembly comprises two parts, a hand brake handle and a hand brake cable. The hand brake handle is arranged at an operation platform at the front end of the vehicle body in the operation direction and is used for performing hand brake control operation and has a preset operation space; one end of the hand brake cable is connected with the hand brake handle, the other end of the hand brake cable is connected with the front-back switching mechanism, and the hand brake cable can carry out corresponding transmission operation along with the braking of the hand brake handle, so that corresponding static braking operation is completed.
In a further embodiment, the rear brake rocker arm is connected to the vehicle body through a leaf spring main plate, and is used for buffering and braking the rear end of the vehicle body in the working direction in the running process of the vehicle body, and the leaf spring front rolling lug is of a fixed structure.
In a further embodiment, the rotation fulcrums of the brake distribution shaft and the front-rear switching mechanism are used as rotation media by a closed bearing structure, so that friction force can be reduced, rotation effect can be improved, and operation experience can be improved.
A front-rear transfer mechanism positioning calculation method of a vehicle type braking system structure comprises the following steps:
s1, setting the center point of a leaf spring main piece as a leaf spring main piece center point A, wherein the motion track formed by the leaf spring main piece under the compression of gravity G is B;
s2, simulating a plurality of points through a motion track B, and finding out synchronous displacement points of the rear brake rocker arm through a collinear parallel point finding method;
s3, making a circle by taking each synchronous displacement point on the rear brake rocker arm as a circle center and taking the brake relative distance L as a radius;
and S4, setting the distance between the overlapping point of the circles made by taking the plurality of displacement points as circle centers and the center of the rear brake rocker as L1, and horizontally extending the LI distance from the center of the rear brake rocker to the front of the working direction of the vehicle body to obtain the fixed point position of the front-rear switching mechanism.
The beneficial effects are that: the invention relates to a vehicle type braking system structure and a front-rear switching mechanism positioning calculation method thereof. The brake operation assembly is arranged at the front end of the lower part of the vehicle body in the operation direction and is used for performing the step operation of braking; the brake sensing assembly is connected with the brake operation assembly and can carry out transmission brake operation according to the operation of the brake operation assembly; the brake sensor assembly is arranged at an operation platform at the front end of the vehicle body in the operation direction and is connected with the brake sensor assembly, and the brake sensor assembly can be driven to perform static brake operation through hand operation. According to the invention, the position and the height of the braking transfer point are reasonably calculated through the displacement of the rear axle and the rotation angle change of the braking swing arm, so that the braking gap is always ensured under the running states of empty vehicles, light loads and heavy loads of the whole vehicle, and the braking performance requirement of mechanical braking is met. And after the front and rear switching points are determined, the brake distribution shafts are reasonably arranged, so that other related braking effects are met, and the braking safety of the whole vehicle is improved. The invention has the advantages of simple structure, high safety coefficient, comfortable driving experience, reasonable economic benefit and easy popularization.
Drawings
Fig. 1 is a side view of the entire present invention.
Fig. 2 is a calculation chart of the running track of each calculation point according to the present invention.
The reference numerals in the drawings are as follows: the brake pedal assembly comprises a vehicle body 1, a brake pedal assembly 2, a pedal 3, a brake pedal pull rod 4, a brake distribution shaft group 5, a rear brake front pull rod 6, a front-rear switching mechanism 7, a rear brake rear pull rod 8, a rear brake rocker arm 9, a hand brake handle 10, a hand brake pull rope 11, a steel plate spring main sheet 12, each simulation point running track 13, a plate spring main sheet center point A running track B and a rear pull rod running track C.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced without one or more of these details. In other instances, well-known features have not been described in detail in order to avoid obscuring the invention.
The applicant believes that in the conventional tricycle type mechanical brake structure, under the conditions of no load, light load and heavy load in the normal use process of a vehicle, the stress of a leaf spring is different, and the position of a rear axle is changed under the influence of multiple factors such as uncertainty according to road conditions, so that the position change of a rear axle brake rocker arm is influenced, and the potential safety hazard of braking is caused.
Therefore, the applicant designs a vehicle type braking system structure and a positioning calculation method of a front-rear switching mechanism 7 thereof, and reasonably calculates the position and the height of a braking switching point through the displacement of a rear axle and the rotation angle change of a braking swing arm, so that the braking clearance is always ensured under the running states of empty vehicles, light loads and heavy loads of the whole vehicle, and the braking performance requirement of mechanical braking is met.
The vehicle type braking system mechanism mainly comprises a vehicle body 1 for bearing the whole part, and further comprises three components of a braking operation component, a braking sensing component and a hand braking component. Wherein, the brake operation assembly is arranged at the front end of the lower part of the vehicle body 1 in the operation direction and is used for performing the step operation of braking; the brake sensing assembly is connected with the brake operation assembly and can perform corresponding transmission brake operation according to the operation of the brake operation assembly; the hand braking component is arranged at an operation platform at the front end of the vehicle body 1 in the operation direction and is connected with the braking sensing component, and the hand braking component can be driven to perform static braking operation through hand operation.
In a further preferred embodiment, the brake operating assembly comprises two parts, a brake pedal combination 2 and a brake pedal lever 4. The brake pedal assembly 2 is arranged at the front end of the lower part of the vehicle body 1 in the working direction, and a pedal 3 with a preset operation space is arranged at the front end of the brake pedal assembly 2 in the working direction; the brake pedal assembly 2 has a predetermined degree of bending. The brake pedal pull rod 4 is connected with the rear end of the brake pedal assembly 2 in the working direction, and can correspondingly drive along with the brake operation of the brake pedal assembly 2.
In a further preferred embodiment, the brake sensor assembly comprises five parts, namely a brake distribution shaft group 5, a rear brake front pull rod 6, a front-rear switching mechanism 7, a rear brake rear pull rod 8 and a rear brake rocker arm 9. The brake distribution shaft group 5 is connected with the brake pedal pull rod 4 and is used for mutual engagement and transmission between the brake operation assembly and the brake sensing assembly as well as between the hand brake assembly; the rear braking front pull rod 6 is connected with the braking distribution shaft group 5 and can carry out corresponding braking operation along with the transmission of the braking distribution shaft group 5; the front-rear switching mechanism 7 is connected with the rear braking front pull rod 6 and is used for connecting and transmitting the front and rear components in the working direction of the braking sensing assembly; the rear brake rear pull rod 8 is connected with the front-rear switching mechanism 7 and can carry out braking operation along with the transmission of the rear brake front pull rod 6; the rear brake rocker 9 is connected with the rear brake rear pull rod 8, and can carry out corresponding braking operation along with the braking of the rear brake rear pull rod 8.
In a further preferred embodiment, the hand brake assembly comprises two parts, a hand brake handle 10 and a hand brake cable 11. The hand brake handle 10 is arranged at an operation platform at the front end of the vehicle body 1 in the operation direction and is used for performing hand brake control operation and has a preset operation space; one end of the hand brake cable 11 is connected with the hand brake handle 10, and the other end is connected with the front-rear switching mechanism 7, so that corresponding transmission operation can be performed along with the braking of the hand brake handle 10, and further corresponding stationary braking operation is completed.
In a further preferred embodiment, the rear brake rocker 9 is connected to the vehicle body 1 through a leaf spring main plate 12, and is used for buffering and braking the rear end of the vehicle body 1 in the working direction during the running process of the vehicle body 1, and the leaf spring front rolling lug is of a fixed structure.
In a further preferred embodiment, the rotation fulcrums of the brake distribution shaft and the front-rear switching mechanism 7 use a closed bearing structure as a rotation medium, so that friction force can be reduced, rotation effect can be increased, and manipulation experience can be improved.
On the basis of the vehicle type braking system structure, the invention provides a front-rear switching mechanism 7 positioning calculation method of the vehicle type braking system structure, which comprises the following specific steps:
firstly, on the basis that the front rolling lugs of the leaf springs are of a fixed structure, the rear axle adjusting pull rod can be basically determined to lose effect. The leaf spring main part 12 is fixed main part, the central point of leaf spring main part 12 we set as leaf spring main part central point A, under the compression of atress G, leaf spring main part central point A's motion track is not parallel back motion in fact, is circular arc displacement according to simulation theory analysis determination to can confirm back brake rocking arm 9 and leaf spring main part central point homonymy displacement simultaneously, thereby found leaf spring main part central point A's motion track B.
Then, 3-5 points are simulated on the motion track B, and synchronous displacement points of the rear brake rocker arm 9 are found by a collinear parallel point finding method, and circles are made by taking points on the rear brake rocker arm 9 as circle centers and taking the brake relative distance as a radius.
Then, the distance L from the overlapping point of the circles of the plurality of displacement points to the center of the rear brake rocker arm 9 is unchanged, so that the distance L1 from the overlapping point of the circles made by the plurality of displacement points as the centers of the circles to the center of the rear brake rocker arm 9 is set,
finally, the position horizontally extending LI from the center point of the rear brake rocker 9 to the front of the working direction of the vehicle body 1 is the fixed point position of the front-rear switching mechanism 7.
Based on the above embodiments, the basic braking principle of the present invention is that the brake pedal assembly 2 drives the brake pedal pull rod 4 to drive the brake distribution shaft group 5, then the rear brake front pull rod 6 drives the determined front-rear switching mechanism 7, and the front-rear switching mechanism 7 is driven to displace in the counterclockwise direction on the rear pull rod motion track C by the action of the brake pull force D, so as to achieve the rear brake effect.
The hand brake handle 10 also drives the brake distribution shaft group 5 to realize the effect of static braking like the brake pedal combination 2.
As described above, although the present invention has been shown and described with reference to certain preferred embodiments, it is not to be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1. A vehicle type brake system structure including a vehicle body for carrying an integral part, characterized by further comprising:
a brake operation assembly disposed at a front end of a lower portion of the vehicle body in a working direction for performing a step operation of braking;
the brake sensing assembly is connected with the brake operation assembly and can carry out transmission brake operation according to the operation of the brake operation assembly;
the hand braking component is arranged at an operation platform at the front end of the vehicle body in the operation direction and is connected with the braking sensing component, and the hand braking component can be driven to perform static braking operation through hand operation;
the brake operating assembly includes:
a brake pedal assembly disposed at a front end of a lower portion of the vehicle body in a working direction, and a pedal having a predetermined operation space is provided at a front end of the brake pedal assembly in the working direction;
the brake pedal pull rod is connected with the rear end of the brake pedal combination working direction and can correspondingly drive along with the brake operation of the brake pedal combination;
the brake sensor assembly includes:
the brake distribution shaft group is connected with the brake pedal pull rod and used for mutually connecting and transmitting the brake operation assembly, the brake sensing assembly and the hand brake assembly;
the rear braking front pull rod is connected with the braking distribution shaft group and can correspondingly brake along with the transmission of the braking distribution shaft group;
the front-rear switching mechanism is connected with the rear braking front pull rod and is used for linking and driving the front and rear parts in the working direction of the braking sensing assembly;
the rear brake rear pull rod is connected with the front-rear switching mechanism and can brake along with the transmission of the rear brake front pull rod;
the rear brake rocker arm is connected with the rear brake rear pull rod and can carry out brake operation along with the braking of the rear brake rear pull rod;
the rear brake rocker arm is connected with the vehicle body through a leaf spring main piece and is used for buffering and braking connection of the rear end of the vehicle body in the working direction in the running process of the vehicle body.
2. The vehicle type brake system structure according to claim 1, wherein the hand brake assembly includes:
the hand brake handle is arranged at an operation platform at the front end of the vehicle body in the operation direction and is used for performing hand brake operation;
one end of the hand brake drag rope is connected with the hand brake handle, and the other end of the hand brake drag rope is connected with the front-back switching mechanism, so that corresponding transmission operation can be carried out along with the braking of the hand brake handle.
3. A vehicle type brake system structure according to claim 1, characterized in that:
the brake distribution shaft and the rotating pivot of the front-rear switching mechanism take a closed bearing structure as a rotating medium.
4. The front-rear switching mechanism positioning calculation method of a vehicle type braking system structure according to claim 1, characterized by comprising the steps of:
s1, setting the center point of a leaf spring main piece as a leaf spring main piece center point A, wherein the motion track formed by the leaf spring main piece under the compression of gravity G is B;
s2, simulating a plurality of points through a motion track B, and finding out synchronous displacement points of the rear brake rocker arm through a collinear parallel point finding method;
s3, making a circle by taking each synchronous displacement point on the rear brake rocker arm as a circle center and taking the brake relative distance L as a radius;
and S4, setting the distance between the overlapping point of the circles made by taking the plurality of displacement points as circle centers and the center of the rear brake rocker as L1, and horizontally extending the LI distance from the center of the rear brake rocker to the front of the working direction of the vehicle body to obtain the fixed point position of the front-rear switching mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890709.8A CN115258021B (en) | 2022-07-27 | 2022-07-27 | Vehicle type braking system structure and front-rear switching mechanism positioning calculation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210890709.8A CN115258021B (en) | 2022-07-27 | 2022-07-27 | Vehicle type braking system structure and front-rear switching mechanism positioning calculation method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN115258021A CN115258021A (en) | 2022-11-01 |
| CN115258021B true CN115258021B (en) | 2023-12-12 |
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| CN202210890709.8A Active CN115258021B (en) | 2022-07-27 | 2022-07-27 | Vehicle type braking system structure and front-rear switching mechanism positioning calculation method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN115258021A (en) | 2022-11-01 |
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