CN213899791U - Improved brake gear for electric bus - Google Patents
Improved brake gear for electric bus Download PDFInfo
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- CN213899791U CN213899791U CN202022483256.6U CN202022483256U CN213899791U CN 213899791 U CN213899791 U CN 213899791U CN 202022483256 U CN202022483256 U CN 202022483256U CN 213899791 U CN213899791 U CN 213899791U
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Abstract
The utility model relates to an electronic big bus is with improved generation brake gear, include: mounting panel, first drive shaft, drum shell, first brake shoe, second drive shaft, drive gear, first brake piston, second brake piston, the utility model has the advantages of: the hydraulic cylinder body can rotate by arranging the brake gear, so that the position of a connecting point of the hydraulic cylinder body and the brake shoe is changed, and the brake response speed and the brake force are comprehensively adjusted; through setting up first brake shoe and second brake shoe to central symmetry structure distribution for hydraulic cylinder body can control first brake shoe and second brake shoe simultaneously, and the rotation of brake gear also can adjust first brake piston and second brake piston simultaneously.
Description
Technical Field
The utility model relates to an electric automobile field especially relates to an electronic big bus is with improved generation brake gear.
Background
Along with the continuous increase of automobile consumption, traditional car relies on fossil fuel such as burning petrol, diesel oil to provide power, has not only consumed a large amount of energy, and a large amount of automobile exhaust of simultaneously discharging causes environmental pollution more and more seriously, also becomes one of the leading reasons that the haze produced. Therefore, new energy vehicles with energy saving and environmental protection are increasingly popular with governments and society, and especially pure electric vehicles which are used in large quantities at present.
The drum brake has large braking force and low cost, and is applied to a brake system of a large automobile. However, with the intelligent development of a vehicle control system, higher and higher requirements are put forward on the adjustability of the drum brake, and the traditional single working mode of the drum brake cannot adapt to flexible intelligent regulation and control requirements more and more.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide an intelligent braking system and a braking gear for an electric bus, which can adjust the braking response speed and the braking force according to the work requirement.
The utility model discloses an electronic big bus is with improved generation brake gear, brake gear include: gear portion, axle sleeve portion and hydraulic cylinder body, axle sleeve portion eccentric settings, hydraulic cylinder body set up in the one end of axle sleeve portion, the perpendicular to in the axle sleeve portion gear portion terminal surface has seted up the connection shaft hole, the connection shaft hole passes hydraulic cylinder body, first cylinder body and second cylinder body have been seted up respectively to hydraulic cylinder body both ends, be provided with hydraulic line in the brake gear, hydraulic line pass axle sleeve portion and with first cylinder body and second cylinder body intercommunication.
In one embodiment, two hydraulic pipelines are arranged in the brake gear, and both the two hydraulic pipelines are communicated with the first cylinder body and the second cylinder body.
Brake gear in this application is arranged in electronic bus, specifically, still includes: mounting a plate; the first driving shaft vertically penetrates through the middle part of the mounting plate and penetrates through the connecting shaft hole of the brake gear; the drum shell is covered on the mounting plate, and the first driving shaft penetrates through the middle part of the drum shell and is fixedly connected with the drum shell; the first brake shoe and the second brake shoe are rotatably connected to the mounting plate, are arc-shaped and are annularly arranged, and the outer sides of the first brake shoe and the second brake shoe can be abutted against the inner wall of the drum shell by rotating the first brake shoe and the second brake shoe, so that friction force is generated on the rotating drum shell; the second driving shaft penetrates through the mounting plate and is parallel to the first driving shaft; the driving gear is fixedly connected to the second driving shaft and meshed with the brake gear, and the driving gear is an eccentric gear; the first brake piston is arranged in the hydraulic cylinder body in a sliding mode, a first arc chute is formed in the first brake shoe, and one end of the first brake piston is arranged in the first arc chute; and the second brake piston is arranged in the hydraulic cylinder body in a sliding manner, a second circular arc chute is formed in the second brake shoe, one end of the second brake piston is arranged in the second circular arc chute and can drive the brake gear to rotate through rotation of the second driving shaft, so that the first brake piston and the second brake piston rotate along the first circular arc chute and the second circular arc chute.
In one embodiment, the intelligent electric bus braking system further comprises a first return spring and a second return spring, wherein one end of the first return spring is connected with the hinged end of the first brake shoe, the other end of the first return spring is connected with the movable end of the second brake shoe, one end of the second return spring is connected with the hinged end of the second brake shoe, and the other end of the second return spring is connected with the movable end of the first brake shoe.
In one embodiment, the first brake shoe and the second brake shoe have a folded state and an expanded state, when the first brake shoe and the second brake shoe are in the folded state, the centers of the first arc chute and the second arc chute are located on the axis of the first driving shaft, so that the brake gear can rotate in a state that the first brake piston and the second brake piston are relatively stationary with the brake gear, when the first brake shoe and the second brake shoe are in the expanded state, the outer sides of the first brake shoe and the second brake shoe are attached to the inner side of the drum shell for braking, and at the moment, the first return spring and the second return spring are in a stretched state.
In one embodiment, the first brake piston is disposed within the first cylinder and the second brake piston is disposed within the second cylinder.
In one embodiment, the first brake shoe and the second brake shoe are provided with brake plates on the outer sides.
The utility model has the advantages as follows.
(1) The hydraulic cylinder body can rotate by arranging the brake gear, so that the position of a connecting point of the hydraulic cylinder body and the brake shoe is changed, and the brake response speed and the brake force are comprehensively adjusted;
(2) the first brake shoe and the second brake shoe are distributed in a centrosymmetric structure, so that the hydraulic cylinder body can control the first brake shoe and the second brake shoe at the same time, and the rotation of the brake gear can adjust the first brake piston and the second brake piston at the same time;
(3) the gear part of the brake gear and the driving gear are eccentric gears, so that when the connecting position of the brake piston and the brake shoe is regulated and controlled by the first driving shaft, certain adaptive compensation can be performed on the regulating effect of different positions, and the regulating and controlling variable quantity is reduced.
Drawings
Fig. 1 is the utility model provides a pair of electronic big bus intelligent brake system's stereogram.
Fig. 2 is the utility model provides a pair of electronic big bus intelligent brake system's stereogram has demonstrated inner structure.
Fig. 3 is the utility model provides a pair of electronic big bus intelligence braking system's explosion chart, wherein the decomposition of going on brake gear.
Fig. 4 is an exploded view of another view angle of the intelligent braking system of electric bus, which is provided by the present invention, wherein the braking gear is disassembled.
Fig. 5 is a perspective view of the brake gear provided by the present invention.
Fig. 6 is a front view of a brake gear provided by the present invention.
Fig. 7 is a cross-sectional view of the plane a-a according to fig. 6 provided by the present invention.
Fig. 8 is a cross-sectional view of plane B-B according to fig. 6.
In the figure, the mounting plate 1, the first drive shaft 2, the second drive shaft 3, the drum shell 4, the first brake shoe 51, the first arc chute 511, the second brake shoe 52, the second arc chute 521, the brake pad 53, the brake gear 6, the gear portion 61, the boss portion 62, the hydraulic cylinder 63, the first cylinder 631, the second cylinder 632, the connecting shaft hole 64, the hydraulic line 65, the drive gear 7, the first brake piston 81, the second brake piston 82, the first return spring 91, and the second return spring 92.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. When an element is referred to as being "secured to" another element, it can be directly secured to the other element or intervening elements may also be present.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "or/and" includes any and all combinations of one or more of the associated listed items.
As shown in fig. 1 to 8, the utility model discloses an electronic big bus is with improved generation brake gear for brake the big bus, specifically include: mounting plate 1, first drive shaft 2, brake gear 6, drum shell 4, first brake shoe 51, second brake shoe 52, second drive shaft 3, drive gear 7, first brake piston 81, second brake piston 82.
Specifically, first drive shaft 2 wears to locate perpendicularly the mounting panel 1 middle part, and with drum shell 4 fixed connection, drum shell 4 lid is located on the mounting panel 1 to through the rotation first drive shaft 2 can drive drum shell 4 is rotatory, brake gear 6 swivelling joint in on the first drive shaft 2, brake gear 6 include: the brake device comprises a gear part 61, a shaft sleeve part 62 and a hydraulic cylinder body 63, wherein the shaft sleeve part 62 is eccentrically arranged, the hydraulic cylinder body 63 is arranged at one end of the shaft sleeve part 62, the shaft sleeve part 62 is vertical to the end surface of the gear part 61 and is provided with a connecting shaft hole 64, the connecting shaft hole 64 penetrates through the hydraulic cylinder body 63, two ends of the hydraulic cylinder body 63 are respectively provided with a first cylinder body and a second cylinder body, a hydraulic pipeline 65 is arranged in the brake gear 6, the hydraulic pipeline 65 penetrates through the shaft sleeve part 62 and is communicated with the first cylinder body and the second cylinder body, a first brake piston 81 is connected in the first cylinder body, a second brake piston 82 is connected in the second cylinder body, the first brake piston 81 and the second brake piston 82 can be synchronously controlled to stretch and retract by controlling the entering and discharging of hydraulic oil in the hydraulic cylinder body 63, the first brake shoe 51 and the second brake shoe 52 are respectively and rotatably connected on the mounting plate 1, the first brake shoe 51 and the second brake shoe 52 are arc-shaped and annularly arranged, by rotating the first brake shoe 51 and the second brake shoe 52, the outer sides of the first brake shoe 51 and the second brake shoe 52 can be abutted against the inner wall of the drum shell 4, so as to generate friction force on the rotating drum shell 4, and further brake the vehicle, the first brake shoe 51 is provided with a first arc chute 511, the second brake shoe 52 is provided with a second arc chute 521, one end of the first brake piston 81 is arranged in the first arc chute 511, one end of the second brake piston 82 is arranged in the second arc chute 521, the second driving shaft 3 is arranged on the mounting plate 1 in a penetrating way and is arranged in parallel with the first driving shaft 2, the driving gear 7 is fixedly connected to the second driving shaft 3 and is meshed with the brake gear 6, the driving gear 7 is an eccentric gear, and the eccentric gear can be driven to rotate by rotating the second driving shaft 3, so that the brake gear 6 is driven to rotate, the first brake piston 81 slides in the first circular-arc chute 511, and the second brake piston 82 slides in the second circular-arc chute 521.
It is worth mentioning that the first brake shoe 51 and the second brake shoe 52 are arc-shaped structures, the first brake piston 81 and the second brake piston 82 are extended and contracted to push the first brake shoe 51 and the second brake shoe 52 to rotate, so that the first brake shoe 51 and the second brake shoe 52 can be attached to the drum shell 4 to brake the vehicle, the first brake piston 81 can simultaneously slide in the first arc chute 511 and the second brake piston 82 can slide in the second arc chute 521 by rotating the brake gear 6, so that the response speed and the braking force during braking can be regulated and controlled under the same hydraulic oil pressure, specifically, when the connection point of the first brake piston 81 and the first brake shoe 51 is closer to the hinge end of the first brake shoe 51, the first brake piston 81 only needs to extend to a smaller length, that is, the first brake shoe 51 can be attached to the drum shell 4, and therefore, the response speed of the brake system is faster, the braking force is small, and similarly, when the connection point of the first brake piston 81 and the first brake shoe 51 is farther away from the hinged end of the first brake shoe 51, the first brake piston 81 needs to extend to a larger length to enable the first brake shoe 51 to be attached to the drum shell 4, so that the response speed of the brake system is slow, but the braking force is large.
It should be noted that the influence of the same angle of rotation of the first brake piston 81 on the braking response speed is gradually reduced as it approaches the hinge end and as it moves away from the hinge end, in other words, when the connection point is far from the hinged end, the movement of the connection point may have less control over the response speed than when it is near the hinged end, this makes the regulation more complicated and less predictable, so that in the present invention, the gear portions 61 of the driving gear 7 and the brake gear 6 are eccentric structures, in such a manner that, when the rotation of the brake gear 6 is controlled, the farther the point at which the first brake piston 81 is connected to the first brake shoe 51 and the hinge point are, the more the rotational speed of the second driving shaft 3 is the same, the faster the first brake piston 81 rotates, so as to increase the response speed of the rotation of the brake gear 6 to reduce the influence of the decrease in the regulation efficiency due to the difference in the position of the connecting point.
Preferably, as shown in fig. 8, two hydraulic pipelines 65 are formed in the brake gear 6, and both the two hydraulic pipelines 65 are communicated with the first cylinder and the second cylinder. It will be appreciated that the two hydraulic lines 65 are an inlet line and an outlet line, respectively.
Preferably, the intelligent braking system for the electric bus further comprises a first return spring 91 and a second return spring 92, wherein one end of the first return spring 91 is connected with the hinged end of the first brake shoe 51, the other end of the first return spring is connected with the movable end of the second brake shoe 52, one end of the second return spring 92 is connected with the hinged end of the second brake shoe 52, and the other end of the second return spring is connected with the movable end of the first brake shoe 51.
It can be understood that the first brake shoe 51 and the second brake shoe 52 have a closed state and an expanded state, when the first brake shoe 51 and the second brake shoe 52 are in the closed state, the centers of the first circular arc chute 511 and the second circular arc chute 521 are located on the axis of the first driving shaft 2, so that the brake gear 6 can rotate in the state that the first brake piston 81 and the second brake piston 82 are stationary relative to the brake gear 6, when the first brake shoe 51 and the second brake shoe 52 are in the expanded state, the outer sides of the first brake shoe 51 and the second brake shoe 52 are in contact with the inner side of the drum shell 4 for braking, and at this time, the first return spring 91 and the second return spring 92 are in the stretched state.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. An improved brake gear for an electric bus, the brake gear comprising: the brake gear comprises a gear part, a shaft sleeve part and a hydraulic cylinder body, wherein the shaft sleeve part is eccentrically arranged, the hydraulic cylinder body is arranged at one end of the shaft sleeve part, a connecting shaft hole is formed in the shaft sleeve part and is perpendicular to the end face of the gear part, the connecting shaft hole penetrates through the hydraulic cylinder body, a first cylinder body and a second cylinder body are respectively formed in two ends of the hydraulic cylinder body, a hydraulic pipeline is arranged in the brake gear, and the hydraulic pipeline penetrates through the shaft sleeve part and is communicated with the first cylinder body and the second cylinder body;
the brake gear is characterized by further comprising a mounting plate and a first driving shaft, wherein the first driving shaft vertically penetrates through the middle of the mounting plate and penetrates through a connecting shaft hole of the brake gear;
still include the drum shell, the lid is located on the mounting panel, first drive shaft pass the middle part of drum shell and with drum shell fixed connection.
2. The improved brake gear for electric buses as claimed in claim 1, wherein two said hydraulic lines are provided in said brake gear, and both said hydraulic lines are in communication with said first and second cylinders.
3. The improved brake gear for electric buses according to claim 1, further comprising a first brake piston and a second brake piston; the first brake piston is arranged in the first cylinder body, and the second brake piston is arranged in the second cylinder body.
4. The improved brake gear for electric buses as claimed in claim 1, further comprising a first brake shoe and a second brake shoe, said first brake shoe and said second brake shoe being rotatably connected to said mounting plate, said first brake shoe and said second brake shoe being arcuate and annularly disposed, and wherein by rotating said first brake shoe and said second brake shoe, the outer side of said first brake shoe and said second brake shoe can be held against the inner wall of said drum shell, thereby generating frictional force on said rotating drum shell.
5. The improved brake gear for electric buses as claimed in claim 4, wherein the first brake shoe and the second brake shoe are provided with brake pads on the outer sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022483256.6U CN213899791U (en) | 2020-10-31 | 2020-10-31 | Improved brake gear for electric bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022483256.6U CN213899791U (en) | 2020-10-31 | 2020-10-31 | Improved brake gear for electric bus |
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| Publication Number | Publication Date |
|---|---|
| CN213899791U true CN213899791U (en) | 2021-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022483256.6U Active CN213899791U (en) | 2020-10-31 | 2020-10-31 | Improved brake gear for electric bus |
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| CN (1) | CN213899791U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857188A (en) * | 2022-05-27 | 2022-08-05 | 湖北群益汽车配件有限公司 | Drum brake block and backplate subassembly |
-
2020
- 2020-10-31 CN CN202022483256.6U patent/CN213899791U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114857188A (en) * | 2022-05-27 | 2022-08-05 | 湖北群益汽车配件有限公司 | Drum brake block and backplate subassembly |
| CN114857188B (en) * | 2022-05-27 | 2023-09-19 | 湖北群益汽车配件有限公司 | Drum brake block and backplate subassembly |
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