阅读说明：本技术 一种扫路机集成式制动系统 (Integrated braking system of road sweeper ) 是由 程磊 单龙 温玉霜 冯英达 邢继婉 肖晨 汤争争 孙明权 蒋浩 刘美荣 刁鑫 于 2021-10-11 设计创作，主要内容包括：本发明公开了一种扫路机集成式制动系统,刹车泵通过油路连接有制动器,制动器固定于扫路机的轮胎上,主控制器通过导线连接至电动制动组件；制动连接器包括套筒以及脚刹连接器,套筒一端与电动制动组件的活动端固定连接,套筒另一端嵌设有内管,内管延伸至套筒外侧并连接刹车泵的活动端；内管靠近刹车泵一端侧壁设置有导向板；脚刹连接器包括固定于底座上的轴座,轴座上固定有转轴,转轴上套设有刹车卡板,刹车卡板顶部朝向刹车泵方向压紧导向板,刹车卡板的底部连接至脚刹制动组件；套筒两侧设置有耳板,耳板连接至驻车制动组件；能够根据不同的工况提供不同的制动方法,从而提高制动性能。(The invention discloses an integrated brake system of a road sweeper, wherein a brake pump is connected with a brake through an oil way, the brake is fixed on a tire of the road sweeper, and a main controller is connected to an electric brake assembly through a lead; the brake connector comprises a sleeve and a foot brake connector, one end of the sleeve is fixedly connected with the movable end of the electric brake assembly, the other end of the sleeve is embedded with an inner pipe, and the inner pipe extends to the outer side of the sleeve and is connected with the movable end of the brake pump; a guide plate is arranged on the side wall of one end of the inner pipe close to the brake pump; the foot brake connector comprises a shaft seat fixed on the base, a rotating shaft is fixed on the shaft seat, a brake clamping plate is sleeved on the rotating shaft, the top of the brake clamping plate compresses a guide plate towards the direction of the brake pump, and the bottom of the brake clamping plate is connected to the foot brake assembly; ear plates are arranged on two sides of the sleeve and connected to the parking brake assembly; different braking methods can be provided according to different working conditions, so that the braking performance is improved.)

1. An integrated brake system of a road sweeper is characterized by comprising a main controller, a base, an electric brake assembly, a foot brake assembly, a parking brake assembly, a brake pump and a brake connector, wherein the brake pump is connected with a brake through an oil way, the brake is fixed on a tire of the road sweeper, and the main controller is connected to the electric brake assembly through a lead; the brake connector comprises a sleeve and a foot brake connector, one end of the sleeve is fixedly connected with the movable end of the electric brake assembly, an inner pipe is embedded in the other end of the sleeve, and the inner pipe extends to the outer side of the sleeve and is connected with the movable end of the brake pump; a guide plate is arranged on the side wall of one end, close to the brake pump, of the inner pipe; the foot brake connector comprises a shaft seat fixed on the base, a rotating shaft is fixed on the shaft seat, a brake clamping plate is sleeved on the rotating shaft, the top of the brake clamping plate compresses a guide plate towards the direction of the brake pump, and the bottom of the brake clamping plate is connected to a foot brake assembly; the sleeve both sides are provided with the otic placode, the otic placode is connected to the parking brake subassembly.

2. The integrated brake system of claim 1, wherein the tire of the road sweeper comprises two front wheels and two rear wheels, the number of the brakes is four, and the brakes are respectively fixed on the front wheels and the rear wheels, the two brakes fixed on the front wheels are connected to one oil port of the brake pump through an oil path, and the two brakes fixed on the rear wheels are connected to the other oil port of the brake pump through an oil path.

3. The integrated road sweeper brake system according to claim 1 or 2, wherein a pressure sensor is arranged on an oil path connected with the brake pump oil port, and the pressure sensor is electrically connected to the main controller.

4. The integrated road sweeper brake system of claim 1, wherein the service brake assembly comprises a pedal base, a service brake pedal movably fixed on the pedal base, a service brake cable connected to the bottom of the service brake pedal, and a return spring connected between the service brake pedal and the pedal base, the service brake cable being connected to the bottom of the brake clamping plate.

5. The integrated road sweeper brake system of claim 1, wherein the foot brake pedal is provided with an angle sensor, and the angle sensor is electrically connected to the master controller.

6. The integrated road sweeper braking system of claim 1, wherein the base is provided with a vertical plate, guide rods are respectively arranged on two sides of the vertical plate, and guide holes are formed in the guide plate corresponding to the guide rods.

7. The integrated road sweeper braking system of claim 1, wherein the lug plate is provided with an L-shaped stay wire clamping groove, the parking braking assembly comprises a parking hand brake and a parking stay wire connected to the parking hand brake, the end of the parking stay wire is provided with a limiting block, and the limiting block is embedded in the stay wire clamping groove.

8. The integrated road sweeper braking system of claim 1, wherein the road sweeper further comprises a dual-shaft motor, one shaft of the dual-shaft motor is connected with the tire, the other shaft of the dual-shaft motor is connected with an electromagnetic band-type brake, and the electromagnetic band-type brake and the dual-shaft motor are respectively connected to the main controller through leads.

Technical Field

The invention relates to an integrated braking system of a road sweeper, belonging to the technical field of road administration equipment.

Background

The road sweeper in the prior art is difficult to arrange inside due to compact structure, and mainly adopts the following three schemes for braking on a sweeper truck in order to save space: firstly, only a foot brake is provided without a hand brake; and secondly, only the hand brake is used without the foot brake, and the backing function of the road sweeper is utilized to realize braking. And thirdly, a parking pedal is arranged beside the foot brake pedal, the parking pedal can lock the foot brake pedal to realize parking, but the single foot is difficult to control due to compact space. The three schemes are troublesome to operate and low in safety. Therefore, the invention designs an integrated brake system of the road sweeper.

Disclosure of Invention

The invention aims to overcome the defects in the prior art, and provides an integrated braking system of a road sweeper, which realizes an optimized braking scheme by combining electric control braking and manual braking, can work independently and provides flexible and convenient use experience for operators.

In order to achieve the purpose, the invention is realized by adopting the following technical scheme:

the invention provides an integrated brake system of a road sweeper, which comprises a main controller, a base, an electric brake assembly, a foot brake assembly, a parking brake assembly, a brake pump and a brake connector, wherein the brake pump is connected with a brake through an oil way, the brake is fixed on a tire of the road sweeper, and the main controller is connected to the electric brake assembly through a lead; the brake connector comprises a sleeve and a foot brake connector, one end of the sleeve is fixedly connected with the movable end of the electric brake assembly, an inner pipe is embedded in the other end of the sleeve, and the inner pipe extends to the outer side of the sleeve and is connected with the movable end of the brake pump; a guide plate is arranged on the side wall of one end, close to the brake pump, of the inner pipe; the foot brake connector comprises a shaft seat fixed on the base, a rotating shaft is fixed on the shaft seat, a brake clamping plate is sleeved on the rotating shaft, the top of the brake clamping plate compresses a guide plate towards the direction of the brake pump, and the bottom of the brake clamping plate is connected to a foot brake assembly; the sleeve both sides are provided with the otic placode, the otic placode is connected to the parking brake subassembly.

Preferably, the tire of the road sweeper comprises two front wheels and two rear wheels, the number of the brakes is four, the brakes are respectively fixed on the front wheels and the rear wheels, the two brakes fixed on the front wheels are connected to one oil port of the brake pump through an oil way, and the two brakes fixed on the rear wheels are connected to the other oil port of the brake pump through an oil way.

Preferably, an oil path connected with an oil port of the brake pump is provided with a pressure sensor, and the pressure sensor is electrically connected to the main controller.

Preferably, the service brake braking component comprises a pedal base, a service brake pedal movably fixed on the pedal base, a service brake pull wire connected to the bottom of the service brake pedal and a reset spring connected between the service brake pedal and the pedal base, wherein the service brake pull wire is connected to the bottom of the brake clamping plate.

Preferably, an angle sensor is arranged on the foot brake pedal and electrically connected to the main controller.

Preferably, the base is provided with a vertical plate, two sides of the vertical plate are respectively provided with a guide rod, and the guide plate is provided with a guide hole corresponding to the guide rod.

Preferably, be provided with the draw-line draw-in groove of L shape on the otic placode, parking braking subassembly includes the parking manual brake and connects the parking on the parking manual brake and acts as go-between, the parking tip of acting as go-between is provided with the stopper, the stopper inlays to be located in the draw-line draw-in groove.

Preferably, the road sweeper further comprises a double-shaft motor, one shaft of the double-shaft motor is connected with the tire, the other shaft of the double-shaft motor is connected with an electromagnetic band-type brake, and the electromagnetic band-type brake and the double-shaft motor are connected to the main controller through wires respectively.

Compared with the prior art, the invention has the following beneficial effects:

the invention provides an integrated brake system of a road sweeper, which integrates an electric brake assembly, a foot brake assembly, a parking brake assembly and an electromagnetic band-type brake through a compact design, can simultaneously meet manned driving and unmanned driving, realizes an optimized brake scheme through the combination of electric control braking and manual braking, can be mutually independent, and can realize manual foot brake braking and automatic parking braking of the electromagnetic band-type brake even under the condition of unexpected power failure, thereby being safe and reliable, and the cost is lower because the existing automobile brake modules IBC and EPB are not adopted.

Drawings

FIG. 1 is a schematic diagram of a connection of an integrated brake system of a road sweeper provided by an embodiment of the invention;

FIG. 2 is a schematic structural diagram of an integrated braking system of a road sweeper provided by the embodiment of the invention;

FIG. 3 is a schematic cross-sectional view of a brake connector provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a service brake assembly provided by an embodiment of the invention;

FIG. 5 is a schematic structural diagram of a service brake connector provided by an embodiment of the invention;

labeled as:

1. the brake device comprises a base, 11 vertical plates, 2 electric brake components, 3 foot brake components, 31 pedal seats, 32 foot brake pedals, 33 foot brake pull wires, 34 return springs, 4 parking pull wires, 41 limiting blocks, 5 brake pumps, 6 brake connectors, 61 sleeves, 62 inner tubes, 63 guide plates, 64 guide rods, 65 foot brake connectors, 66 shaft seats, 67 brake clamping plates, 68 lug plates and 69 pull wire clamping grooves.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

As shown in fig. 1-2, an embodiment of the present invention provides an integrated brake system of a road sweeper, which includes a main controller, a base 1, an electric brake assembly 2, a service brake assembly 3, a parking brake assembly, a brake pump 5, and a brake connector 6. The brake pump 5 is connected with a brake through an oil way, the brake is fixed on a tire of the road sweeper, and the main controller is connected to the electric brake assembly 2 through a lead. The road sweeper further comprises a double-shaft motor, one shaft of the double-shaft motor is connected with the tire, the other shaft of the double-shaft motor is connected with an electromagnetic band-type brake, and the electromagnetic band-type brake and the double-shaft motor are connected to a main controller through wires respectively.

As shown in fig. 3-5, the brake connector 6 includes a sleeve 61 and a service brake connector 65, one end of the sleeve 61 is fixedly connected to the movable end of the electric brake assembly 2, the other end of the sleeve 61 is embedded with an inner tube 62, and the inner tube 62 extends to the outside of the sleeve 61 and is connected to the movable end of the brake pump 5; a guide plate 64 is arranged on the side wall of one end of the inner pipe 62 close to the brake pump 5; the foot brake connector 65 comprises a shaft seat 66 fixed on the base 1, a rotating shaft is fixed on the shaft seat 66, a brake clamping plate 67 is sleeved on the rotating shaft, the top of the brake clamping plate 67 presses the guide plate 63 towards the direction of the brake pump 5, and the bottom of the brake clamping plate 67 is connected to the foot brake assembly 3; the sleeve 61 is provided with lugs 68 on both sides, the lugs 68 being connected to the parking brake assembly. The lug plate 68 is provided with an L-shaped stay wire clamping groove 69, the parking brake assembly comprises a parking hand brake and a parking stay wire 4 connected to the parking hand brake, the end part of the parking stay wire 4 is provided with a limiting block 41, and the limiting block 41 is embedded in the stay wire clamping groove 69.

The service brake assembly 3 comprises a pedal seat 31, a service brake pedal 32 movably fixed on the pedal seat 31, a service brake cable 33 connected to the bottom of the service brake pedal 32 and a return spring 34 connected between the service brake pedal 32 and the pedal seat 31, the service brake cable 33 is connected to the bottom of a brake clamping plate 37, an angle sensor is arranged on the service brake pedal 32, and the angle sensor is electrically connected to a main controller. The base 1 is provided with a vertical plate 11, two sides of the vertical plate 11 are respectively provided with a guide rod 64, and the guide plate 64 is provided with a guide hole corresponding to the guide rod 64.

In this embodiment, the tire of the road sweeper includes two front wheels and two rear wheels, the stopper is provided with four, and is fixed in on front wheel and the rear wheel respectively, and two stoppers that are fixed in the front wheel are connected to an hydraulic fluid port of brake pump 5 through the oil circuit, and two stoppers that are fixed in the rear wheel are connected to another hydraulic fluid port of brake pump 5 through the oil circuit. And an oil path connected with an oil port of the brake pump 5 is provided with a pressure sensor, and the pressure sensor is electrically connected to the main controller.

During automatic braking:

when the master controller obtains a braking signal, the master controller matches the braking pressure value P according to the required deceleration. The main controller sends a braking signal to the electric push rod, the electric braking assembly 2 can control the push rod to extend by a corresponding value L according to an instruction, at the moment, a cylinder rod of the brake pump is compressed, and braking pressure P is established in a braking oil path, so that the brake is braked, and the deceleration of the vehicle is realized. The pressure sensor feeds back the pressure to the main controller, so that the electric brake assembly 2 is subjected to micro adjustment, the small range of the pressure P is kept unchanged, and constant deceleration braking is realized. When different speed reduction effects are required, the main controller can control the electric brake assembly 2 to extend by different values, and different brake pressure values are realized. When the main controller needs to realize the sudden stop of the vehicle, the main controller controls the electric brake assembly 2 to brake according to a preset maximum stroke according to a preset maximum brake pressure value Pmax, and simultaneously drives the double-shaft motor to perform reverse braking, so that the minimized brake distance is realized.

During manual braking:

when manual service brake is needed, the service brake pedal 32 is stepped, the service brake pedal 32 pulls the service brake pull wire 33, so that the brake clamping plate 67 is driven to rotate, the brake clamping plate 67 pushes the service brake connector 65 in a propping mode when rotating, and the brake pump cylinder rod is compressed to generate braking force for the brake. Meanwhile, the angle sensor detects the rotation angle of the foot brake pedal, and after a signal is fed back to the main controller, the main controller controls the electric brake assembly 2 to perform the extension action of the push rod according to the angle proportion, so that the manual foot brake assisting force is realized. When the electric braking component 2 detects that the angle value of the angle sensor exceeds a preset alpha angle, the system judges that a driver needs sudden braking, and the double-shaft motor performs reverse braking intervention at the moment, so that the brake and the driving motor perform simultaneous braking, and the minimized braking distance is realized.

During parking braking:

after the main controller sends a parking signal or the hand brake switch is triggered, the electric brake assembly 2 drives the sleeve 61 to retract, and the lug plate 68 on the sleeve 61 drives the flexible shaft of the parking pull wire 4, so that the front wheel brake is tightened to park. When the electric brake assembly 2 drives the sleeve 61 to retract, the sleeve 61 and the service brake connector 65 slide relatively and are separated, but are not separated, so that the electric brake assembly 2 is always in the same straight line with the brake pump cylinder rod no matter the electric brake assembly 2 extends or retracts.

During electromagnetic braking:

after the main controller sends a parking instruction, the electromagnetic band-type brake is powered off, and the tail of the double-shaft motor is locked by an output shaft, so that the double-shaft motor is locked, and the parking of the vehicle is realized. When the whole vehicle system is powered off accidentally, the electromagnetic band-type brake can be automatically locked, and the safety is improved. When the vehicle gear is N gear, when the rotating speed of the driving motor is 0, the electromagnetic band-type brake can be automatically locked, and the user is prevented from forgetting parking and sliding.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.